JP7295055B2 - glass forming machine - Google Patents

Description

The present invention relates to a glass forming machine.

Conventionally, glass molding is provided with an upper plate having a pressing surface that applies a pressing force to the upper mold material that constitutes the mold, and a lower plate that has a pressing surface that applies a pressing force to the lower mold material constituting the mold. machine is known (see Patent Document 1).

In a conventional glass molding machine, the upper plate is provided with a correction member that transfers the relative inclination between the press surfaces of the upper plate and the lower plate to adjust the alignment of the press surface of the upper plate with respect to the press surface of the lower plate. there is

JP 2018-154507 A

By the way, in the conventional glass molding machine, since the correction member must be molded by transfer, the process of adjusting the alignment of the pressing surface of the upper plate with respect to the pressing surface of the lower plate is complicated.

Further, even when the mold used for molding the glass is changed in the conventional glass molding machine, the correction member must be molded separately, so that a plurality of correction members are required.

SUMMARY OF THE INVENTION An object of the present invention is to provide a glass molding machine in which alignment adjustment of a second mold table (press surface of an upper plate) with respect to a first mold table (press surface of a lower plate) is easy. and

According to a first aspect of the invention, there is provided a first mold table having a planar portion with which a mold contacts; a second mold table with a planar portion with which the mold contacts; In order to sandwich the mold installed on the first mold table with a predetermined force between the second mold table and the first mold table, the second mold table an actuator for driving a table; and an alignment adjustment unit provided between the actuator and the second mold table for adjusting the alignment of the second mold table with respect to the first mold table. and the alignment adjustment section includes a first member provided with a first contact surface and a second member provided with a second contact surface, and The first contact surface and the second contact surface are in surface contact with each other, and by changing the position of the second member with respect to the first member, the contact surface with respect to the first mold table can be changed. It is configured to adjust the alignment of the second mold table, and the alignment adjusting section rotates the second member with respect to the first member around a predetermined central axis. , wherein the first member is tilted in one plane with respect to the other plane and configured to adjust the alignment of the second mold table with respect to the first mold table. The second member is also formed in a disc shape with one plane inclined with respect to the other plane, and the first contact surface is formed on the first contact surface. The second contact surface is the other plane of the member, the second contact surface is the other plane of the second member, the predetermined central axis is the central axis of the first member, and the first When viewed in the extending direction of the central axis of the member, the outer circumference of the first member and the outer circumference of the second member overlap each other, and each of the first member and the second member has an arc shape. is provided, and the first member and the second member are integrated by a bolt penetrating the long hole.

The invention according to claim 2 is the glass molding machine according to claim 1 , wherein the outer circumference of the first member and the outer circumference of the second member have the second outer circumference with respect to the first member. The glass forming machine is provided with a mark for representing the rotation angle of the members of .

The invention according to claim 3 is the glass molding machine according to claim 1 or 2 , wherein a temperature sensor having a temperature measuring part and a lead wire is provided, and the second mold The mold table is provided with a hole for installing the temperature sensor, and the hole excludes the portion of the second mold table where the planar portion and the actuator are engaged. It extends from a predetermined location on the outer surface to a predetermined location inside the second mold table, and when the temperature sensor is installed on the second mold table, the temperature sensor measures The hot part is positioned deep inside the hole, the lead wire of the temperature sensor passes through the hole and extends outside the second mold table, and the lead wire of the temperature sensor Predetermined portions of the portion extending outside the second mold table are integrally supported by the second mold table, so that the temperature sensor inside the hole is The position and posture with respect to the second mold table are fixed, and the value of the inner diameter of the hole corresponds to the value of the outer diameter of the lead wire of the temperature sensor or the outer diameter of the temperature measuring portion of the temperature sensor. and the lead wire of the temperature sensor is slightly meandering in the hole due to elastic deformation, and the lead wire and the temperature measuring part are in contact with the inner surface of the hole with an urging force. is.

According to the invention, it is possible to provide a glass forming machine in which alignment adjustment of the second mold table with respect to the first mold table can be easily adjusted.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows schematic structure of the glass forming machine which concerns on embodiment of this invention. (a) is a perspective view showing a schematic configuration of a press stand used in the glass molding machine according to the embodiment of the present invention, and (b) is a view taken from arrow IIB in (a). It is a figure which shows the usage aspect of the stand for press in the glass forming machine which concerns on embodiment of this invention. (a) is a plan view showing a schematic configuration of a mold movement positioning unit of a glass molding machine according to an embodiment of the present invention, (b) is an IVB arrow view in (a), and (c) is ( It is an enlarged view of the IVC part in a), Comprising: It is a figure which shows the modification of a metal mold|die movement positioning part. It is a figure which shows operation|movement of the metal mold|die movement positioning part of the glass molding machine which concerns on embodiment of this invention. It is a figure explaining the speed of the mold conveyance member of the mold movement positioning part of the glass molding machine which concerns on embodiment of this invention. 1 is a diagram showing a schematic configuration of a glass forming machine according to an embodiment of the present invention, in which a plurality of heating zones, pressure zones and cooling zones are provided; FIG. It is a figure which shows schematic structure of the alignment adjustment part of the glass forming machine which concerns on embodiment of this invention. (a) is a plan view showing a schematic configuration of a first member (second member) constituting an alignment adjustment section of the glass molding machine according to the embodiment of the present invention, and (b) is an IXB in (a). It is an arrow line view, and (c) and (d) are figures which show operation|movement of an alignment adjustment part. It is a figure which shows the installation aspect of the temperature sensor of the glass forming machine which concerns on embodiment of this invention. It is a figure which shows the conveyance positioning of the metal mold|die pinched between V-shaped claws.

A material molding apparatus (for example, a glass molding machine or an optical element molding apparatus) 1 according to an embodiment of the present invention uses a mold (for example, a metal mold) 3 to mold a material 5 such as glass. 4 and the like, it comprises a mold placement table 7 and a mold movement positioning unit 9 .

In FIG. 1, one carrying-in zone (carrying-in zone composed of a mold placing table indicated by reference numeral 7A) and one heating zone (having a mold placing table indicated by reference numeral 7B). heating zone), one pressure molding zone (pressure molding zone composed of a mold mounting table indicated by reference numeral 7C), and one cooling zone (the mold indicated by reference numeral 7D A cooling zone composed of a mounting table, etc.) and one unloading zone (unloading zone composed of a mold mounting table, etc. indicated by reference numeral 7E) are shown. there is

In practice, however, each zone is set in the glass forming machine 1 as shown in FIG. ing. By molding the material 5, a product such as a lens or a semi-finished product can be obtained.

For example, the glass molding machine 1 shown in FIG. a heating zone composed of a mold mounting table and the like shown); One slow cooling zone (a slow cooling zone composed of a mold placing table, etc. indicated by reference numerals 7Da and 7Db) and one rapid cooling zone (a part composed of a mold placing table, etc. indicated by reference numeral 7Dc). quenching zone) and one unloading zone (denoted by reference numeral 7E). That is, one or more of each zone is provided. The cooling zone is a combination of the slow cooling zone and the rapid cooling zone.

Here, for convenience of explanation, one predetermined horizontal direction is defined as the X direction, another predetermined horizontal direction and a direction perpendicular to the X direction is defined as the Y direction, and the X direction and the Y direction are defined as the X direction and the Y direction. A direction (vertical direction) perpendicular to is defined as the Z direction.

The outer shape of the mold 3 is, for example, cylindrical. A mold 3 is placed on the mold placing table 7 . A plurality of mold placement tables 7 are provided.

The outer shapes of the plurality of mold placement tables 7 are substantially the same as each other. A plurality of mold placement tables 7 are arranged in a predetermined horizontal direction (X direction) with a slight gap therebetween. The upper surfaces of the plurality of mold placement tables 7 (7A, 7B, 7C, 7D, 7E) exist within one horizontal plane.

One mold 3 is installed on one mold placing table 7 . When placed on the mold placing table 7 , the circular bottom surface of the cylindrical mold 3 is in surface contact with the upper surface of the mold placing table 7 .

When the mold 3 is positioned and placed on the mold placing table 7 when viewed in the vertical direction, the mold is positioned inside the mold placing table 7, and the mold is placed on the mold placing table 7. The center of the placement table 7 and the center of the mold 3 coincide with each other.

The mold movement positioning unit 9 moves the mold 3 placed on one mold placing table (for example, the mold placing table 7B) out of a plurality of mold placing tables to a plurality of mold placing tables. Move onto another mold mounting table (for example, mold mounting table 7C) adjacent to the above one mold mounting table. It's like

In addition, when positioning the mold 3 on another mold mounting table 7 by the mold movement positioning unit 9, the movement speed of the mold 3 can be set (Movement speed setting is free).

Setting the moving speed of the mold 3 will be described in more detail with reference to FIG. The horizontal axis in FIG. 6 indicates time (passage of time), and the vertical axis in FIG. 6 indicates the moving speed of the mold 3 . When transporting the mold 3, as shown by a diagram G6a in FIG. 6(a), transport of the mold 3 is started at the transport start time t0a, and a constant acceleration , the acceleration is set to 0 between time t1a and time t2a, and the mold 3 is transported at a constant speed. , the mold 3 is stopped at time t3a, and the mold 3 is stopped from being conveyed.

Note that in the mode shown by the diagram G6a in FIG. 6(a), the acceleration changes rapidly at time t0a, time t1a, time t2a, and time t3a. Since an external force such as a force acts on the mold 3, problems such as misalignment of the mold 3 do not occur with respect to transportation (movement positioning) of the mold 3 under predetermined conditions.

However, the diagram G6a shown in FIG. 6(a) may be changed as shown in the diagram G6b shown in FIG. 6(b). In the diagram G6b, the abrupt changes in acceleration as explained in the diagram G6a are appropriately rounded at and near times t0a, t1a, t2a, and t3a with curves such as arcs. I lost it.

It may be considered that the acceleration of the mold 3 can be freely set when the mold movement positioning unit 9 positions the mold 3 on another mold mounting table 7 . When moving and positioning the mold 3 by the mold movement positioning unit 9, the mold 3 slides on the mold mounting table 7 with a predetermined frictional force.

As shown in FIGS. 4 and 5, the mold movement positioning unit 9 includes a first planar portion (first plane) 11, a second planar portion (second plane) 13, and a third plane. and a shaped portion (third plane) 15 .

The first planar portion 11 is orthogonal to the Y direction, the second planar portion 13 is parallel to the first planar portion, and the third planar portion 15 is While orthogonal to the first planar portion 11 and the second planar portion 13, the third planar portion 15 is orthogonal to the X direction.

By positioning the mold 3 between the first planar portion 11 and the second planar portion 13, the mold 3 is positioned in the Y direction, and the third planar portion 15 is metallized. The mold 3 is moved and positioned in the X direction by pressing the mold 3 downstream in the X direction by bringing it into contact with the side surface of the mold 3 .

Furthermore, as described above, in order to position the mold 3 in the X direction, the moving speed of the third planar portion 15 when pushing the mold 3 with the third planar portion 15 can be freely set. It has become.

The third planar portion 15 is configured to be moved by an actuator (not shown) such as an electric cylinder. Also, in order to position the mold 3 in the X direction, it is possible to adjust the magnitude of the acceleration (negative acceleration) when decelerating the third planar portion 15 moving in the X direction. It has become. That is, the moving speed of the third planar portion 15 suddenly decreases (due to rapid deceleration of the third planar portion 15), and the inertial force causes the mold 3 to move toward the third planar portion 15. The acceleration during deceleration is such that the die is placed on the die placing table 7 away from the die.

Further, in order to prevent the mold 3 from falling due to sudden acceleration when starting to move the mold 3 in the X direction, the acceleration is increased when the third planar portion 15 starts moving in the X direction. can be adjusted.

In other words, the acceleration at which the third planar portion 15 is always in contact with the mold 3 when the mold 3 is moving in the X direction, when the mold 3 stops, and when the mold 3 stops. , the third planar portion 15 moves.

The first planar portion 11 is provided on a mold contact member 17 that is integrally provided with the mold placing table 7 . The second planar portion 13 and the third planar portion 15 are provided on a mold conveying member 19 that is separate from the mold mounting table 7 . The moving speed of the mold conveying member 19 can be freely set in the X direction by the actuator 20 such as the electric cylinder described above.

The mold conveying member 19 is moved in the Y direction by an actuator (not shown) such as a pneumatic cylinder to move the mold conveying member 19 to a position P1 (Figs. 5(b), etc.) and a position P2 (see FIG. 5(a), etc.) on the side away from the first planar portion 11. As shown in FIG. A position P1 on the side of the first planar portion 11 is a position for positioning the mold 3 in the Y direction.

When the mold 3 is conveyed (moved and positioned) in the X direction, the mold conveying member 19 is positioned at the position P1 on the side of the first planar portion 11, and the mold conveying member 19 conveys the mold 3. In the stopped state after finishing, the value of the distance L5B1 (see FIG. 5B) between the first planar portion 11 and the second planar portion 13 in the Y direction and the value of the mold 3 The value of the difference (L5B1-D1) from the value of the outer diameter D1 (see FIG. 5(b)) is a slight value and is larger than the value within the allowable error range of the positioning accuracy of the mold 3 in the Y direction. It's getting smaller.

For example, a plurality of mold conveying members 19 are provided, and each of the plurality of mold conveying members 19 is independently driven (moved and positioned) to move each of the plurality of molds 3. configured to position. Furthermore, one mold conveying member 19 moves and positions one mold 3 .

Further, the glass molding machine 1 is provided with a mold transfer section 21 separately from the mold movement positioning section 9 . In the mold conveying unit 21, the mold 3 is transferred from one mold mounting table or a different mold mounting table (for example, a mold mounting table 7A) to one other mold mounting table. The mold 3 is conveyed to the mold mounting table, and the mold 3 is transferred from another mold mounting table (for example, the mold mounting table 7D) to one mold mounting table or another mold mounting table. In addition to the placement table, it is configured to convey to another die placement table (for example, die placement table 7E).

As shown in FIG. 11 , the mold conveying unit 21 simultaneously moves a plurality of molds 3 in the X direction using one conveying bar 157 , one actuator (not shown) such as a pneumatic cylinder, and V-shaped claws 151 . configured to be transported by Although only one V-shaped claw 151 is shown in FIGS. 4 and 11, it is assumed that V-shaped claws 151 corresponding to the number of molds 3 to be conveyed are provided. do.

Here, the relationship between the mold movement positioning unit 9 and the mold conveying unit 21 will be described with an example.

The mold placement tables 7A, 7B, 7C, 7D, and 7E are arranged in order from the upstream side to the downstream side in the X direction. The mold 3A is placed on the mold placing table 7A, the mold 3B is placed on the mold placing table 7B, and the mold 3C is placed on the mold placing table 7C. A state in which the mold 3D is placed on the mold placing table 7D and the mold 3 is not placed on the mold placing table 7E is defined as a pre-movement state.

From this pre-movement state, the mold movement positioning unit 9 moves the mold 3B downstream in the X direction onto the mold mounting table 7C, and the mold C moves downstream in the X direction. is moved onto the mold placing table 7D. On the other hand, from the pre-movement state, the mold transfer section 21 moves the mold 3A downstream in the X direction onto the mold mounting table 7B, and the mold 3D moves downstream in the X direction. and move onto the mold placement table 7E.

As shown in FIG. 1 and the like, the glass molding machine 1 includes a second mold table (upper mold table; A die pressing table) 23, an actuator 25 that drives (moves) the second die table 23 in the Z direction, and an alignment adjustment section 27 (see FIG. 8, etc.) are provided. Although the details will be described later, the actuator 25 drives a mold pressing table 23 that sandwiches and presses the mold 3 together with the mold placing table 7C (see FIG. 1).

The mold 3 includes a first mold member (lower mold member) 29, a second mold member (upper mold member) 31, and a mold guide member 33, as shown in FIG. . The glass 5 is molded within a cavity 35 surrounded by a first mold member 29 , a second mold member 31 and a mold guide member 33 .

The first mold table 7C is provided with a planar portion (flat surface; upper surface) 37 with which the first mold material 29 is in contact. When the mold 3 is placed (placed) on the mold placing table 7 , the planar bottom surface of the lower mold member 29 is in surface contact with the planar upper surface 37 of the mold placing table 7 . ing.

The second mold table 23 is provided with a planar portion (flat surface; lower surface) 39 with which the second mold member 31 contacts. When the upper mold table 23 comes into contact with the mold 3 placed on the mold mounting table 7 , the planar upper surface of the upper mold member 31 is the planar lower surface 39 of the upper mold table 23 . have face-to-face contact with

The actuator 25 sandwiches the mold 3 placed on the first mold table 7C with a predetermined force using the second mold table 23 and the first mold table 7C. The second mold table 23 is driven (moved).

As shown in FIG. 8, the alignment adjusting section 27 is provided between a member 41 on the actuator side of the actuator 25 and a member 42 on the second mold table 23 side. The alignment (orientation) of the second mold table 23 with respect to the table 7C is adjusted.

That is, the inclination of the lower surface 39 of the second mold table 23 with respect to the upper surface 37 of the first mold table 7C can be adjusted within a small range.

9, the alignment adjustment section 27 is configured including a first member 43 and a second member 45. As shown in FIG. A first contact surface 47 is provided on the first member 43 . A second contact surface 49 is provided on the second member 45 . The first contact surface 47 and the second contact surface 49 are in surface contact with each other.

By changing the position of the second member 45 with respect to the first member 43 while maintaining the state in which the first contact surface 47 and the second contact surface 49 are in surface contact with each other, the first It is configured to adjust the alignment of the second mold table 23 with respect to the second mold table 7C.

The first member 43 is engaged with the member 41 on the actuator side of the actuator 25, and the second member 45 is engaged with the member 42 on the upper die table 23 side. In the initial state, the planar portion 37 of the first mold table 7 and the planar portion 39 of the second mold table 23 are parallel to each other and developed in the horizontal direction. As described above, the adjusting unit 27 adjusts the bottom surface 39 of the second mold table 23 so that it is slightly inclined with respect to the top surface 37 of the first mold table 7, and this state is maintained. It has become.

Further, the alignment adjustment unit 27 rotates the second member 45 with respect to the first member 43 about the predetermined central axis C1, thereby adjusting the upper mold table 23 relative to the lower mold table 7C. configured to adjust alignment;

To explain further, as shown in FIG. 9, the first member 43 is a disk having one plane (circular bottom surface) 51 and the other plane (first contact surface) 47 slightly inclined. It is formed in a shape (short columnar shape).

The second member 45 is also formed, for example, in the same shape as the first member 43, and the other plane (second contact surface) 49 is slightly inclined with respect to one plane (circular bottom surface) 53. It is formed in a disc shape (short columnar shape).

The predetermined central axis C1 is the central axis of the first member 43 and the second member 45, and extends along the outer circumference of the first member 43 when viewed in the extending direction of the central axis C1 of the first member 43. All of the circles and all of the circles around the circumference of the second member 45 substantially overlap each other. In other words, they overlap each other to such an extent that it is impossible to see with the naked eye a portion that does not overlap, or a slight difference in level between the side surfaces of the first member 43 and the second member 45 .

A mark 55 is provided on the outer periphery of the first member 43 and the outer periphery of the second member 45 to indicate the rotation angle of the second member 45 with respect to the first member 43 .

The second mold table 23 is configured such that a portion opposite to the lower surface 39 of the second mold table 23 is engaged with a member 41 on the operator side of the actuator 25 to be driven. . A temperature sensor (thermocouple) 57 is provided on the second mold table 23, as shown in FIG. The temperature sensor 57 includes a temperature measuring portion 59 and a lead wire 61 and measures the temperature of the second mold table 23 .

Further, the second mold table 23 is provided with a hole 63 for installing the temperature sensor 57 by inserting the temperature sensor 57 . The hole 63 is formed in a predetermined portion (for example, perpendicular to the Y direction) of the outer surface of the second mold table 23 excluding the portion where the planar portion 39 and the member 41 on the actuator side of the actuator 23 are engaged. It extends from the side surface formed by the flat surface forming the flat surface) to a predetermined location (central portion) inside the second mold table 23 .

When the temperature sensor 57 is installed on the second mold table 23 , the temperature measuring part 59 of the temperature sensor 57 is positioned deep inside the hole 63 , and the lead wire 61 of the temperature sensor 57 is positioned inside the hole 63 . It extends outside the second mold table 23 through the inside.

A predetermined portion of the portion of the lead wire 61 of the temperature sensor 57 extending outside the second mold table 23 is attached to the second mold table 23 by a fixture 65 and a support (not shown). Since the temperature sensor 57 is integrally supported by the member, the position and attitude of the temperature sensor 57 in the hole 63 with respect to the second mold table 23 are fixed (configured to be constant). ing).

The temperature sensor 57 is also installed on the first mold table 7 in the same manner as the second mold table 23 .

Further, the glass molding machine 1 is provided with a press frame 67 and a molding chamber 69 as shown in FIGS. Inside the molding chamber 69 , the glass 5 is molded by the mold 3 . The first mold table 7 and the housing 71 of the actuator 25 are supported by a press frame 67 . The lead wire 61 of the temperature sensor 57 of the first die table 7 is integrally supported by the first die table 7 .

That is, the reaction force generated when the mold 3 is pressed by the first mold table 7 and the second mold table 23 (the reaction force received from the mold 3) is It is configured to be received by a press platform 67 .

The glass molding machine 1 will be further explained.

An import load-lock chamber (hereinafter referred to as replacement chamber) 73 is provided on the top surface of the right end portion of the molding chamber 69 of the glass molding machine 1 shown in FIG. 1 for waiting the mold 3 before molding. Further, an outport load lock chamber (hereinafter referred to as a replacement chamber) 75 for waiting the mold 3 after molding is provided on the left end upper surface of the molding chamber 69 of the glass molding machine 1 shown in FIG. A vacuum pump 79 is connected to the replacement chamber 73 via a conduit 77 . Nitrogen gas is supplied from a nitrogen gas supply unit 87 to the replacement chambers 73, 75 and the molding chamber 69 through supply pipes 81, 83, 85, respectively. Incidentally, in this embodiment, nitrogen gas is used as an inert gas. In addition, valves 89, 91, 93, and 95 are provided in the middle of each of the pipelines 77, 81, 83, and 85, respectively, and the shutoff or opening of each of the pipelines 77, 81, 83, and 85 can be adjusted. It's like

Inside the molding chamber 69, there is arranged a mold placing table 7A which can be moved up and down by an actuator 97 such as an air cylinder provided below the replacement chamber 73. A pre-molding mold (a mold containing pre-molding glass 5) 3 is mounted and received through an opening 99 of 73. As shown in FIG.

Inside the molding chamber 69, there is arranged a mold mounting table 7E that can be moved up and down by an actuator 101 such as an air cylinder provided below the replacement chamber 75. The mold after molding (the mold containing the glass 5 after molding) 3 is discharged into the replacement chamber 75 through the opening 103 of 75 .

A shutter (not shown) is provided at each of the openings 99 and 103 to airtightly separate the replacement chambers 73 and 75 from the molding chamber 69 .

Between the mold mounting table 7A and the mold mounting table 7E, a mold mounting table 7B forming a heating zone, a known infrared lamp heater device 105, and a pressure zone (pressure molding zone) are provided. A mold placing table 7C and a mold pressing table 23 forming a cooling zone, and a mold placing table 7D and a mold pressing table 23 forming a cooling zone are arranged.

The infrared lamp heater device 105 is movable up and down by a rod 109 of an actuator 107 such as an air cylinder, and moves upward when the mold 3 is transferred from the mold mounting table 7A onto the adjacent mold mounting table 7B. It is designed to be pulled up.

As shown in FIGS. 1 and 3, a heater 111 is embedded in each of the mold mounting table 7C and the mold pressing table 23 that form the stage of the pressure molding zone. Furthermore, as shown in FIG. 10, a temperature sensor 57 is embedded in the central portion of the mold placing table 7C, and a temperature sensor 57 is also embedded in the central portion of the mold pressing table 23. As shown in FIG. Then, the temperature at the center of the mold placing table 7C and the center of the mold pressing table 23, which are in contact with the mold 3, is detected.

The mold mounting table 7B, the mold mounting table 7D, and each mold mounting table 7C and the mold pressing table 23 forming the stage of the pressure molding zone are similar to the mold mounting table 7C and the mold pressing table 23. The temperature may be detected by the mold pressing table 23 paired with each of the placement tables 7B and 7D.

Here, the actuator 25 of the mold pressing table 23 that sandwiches and presses the mold 3 together with the mold mounting table 7C will be described in detail.

The actuator 25 is composed of a servomotor. The rotary motion of the servomotor is converted into linear motion by a motion converting mechanism using screws or the like, so that the die pressing table 23 on the die placing table 7C moves in the Z direction. . By using a servomotor as the actuator 25, the pressing force of the mold 3 by the mold placing table 7C and the pressing mold pressing table 23 is controlled during the pressure molding process. It's becoming

A mold pressing table 23 on the mold mounting table 7D forming a cooling zone can be moved up and down by a rod 115 of an actuator 113 such as an air cylinder. Then, by moving the mold pressing table 23 downward, the mold 3 is sandwiched between the mold placing table 7D and the mold pressing table 23, and by moving the mold pressing table 23 upward, the mold is The die pressing table 23 can be separated from the die 3 placed on the die placing table 7D.

As shown in FIG. 7, each of the mold mounting tables 7Da and 7Db forming the stage of the slow cooling zone and the two mold pressing tables 23 paired with the mold mounting tables 7Da and 7Db are provided with , a heater 112 is embedded. The heater 112 heats the mold 3 at a temperature lower than that of the heater 111 , thereby gradually cooling the mold 3 .

A water-cooling pipe 114 is provided on the mold mounting table 7Dc forming the stage of the rapid cooling zone and the mold pressing table 23 paired with the mold mounting table 7Dc. The mold 3 is rapidly cooled by flowing coolant through the water-cooling pipe 114 .

Further, the glass forming machine 1 is provided with a control section 121 including a CPU 117 and a memory 119, and operates under the control of the control section 121. FIG.

The glass molding machine 1 will be explained in more detail.

As shown in FIGS. 2 and 3, the press pedestal 67 includes a lower plate 123, an intermediate plate 125, and an upper plate 127 which are integrally provided with the plates 123, 125, and 127. A tie rod 129 connecting 123, 125 and 127 is provided. In addition, in FIG. 2, illustration of a through hole or the like for installing the actuator 25 or the like is omitted. In addition, the intermediate plate 125 is provided to prevent the length of the tie rod 129 (dimension in the Z direction) from becoming long. Intermediate plate 125 may be omitted.

The relationship between the press pedestal 67, the molding chamber 69, the mold mounting table 7C forming the pressure molding zone, and the mold pressing table 23 will be described with reference to FIG. What is indicated by reference numeral 131 in FIG.

The mold placement table 7C is integrally supported by the lower plate 123. As shown in FIG. A housing 71 of the actuator 25 is integrally supported by the upper plate 127 . The die pressing table 23 is integrally supported by the mover 133 of the actuator 25 .

Further, the mold placing table 7C, the mold pressing table 23 and the mold 3 are arranged in the molding chamber 69. As shown in FIG. At the portion indicated by IIIB in FIG. 3, for example, sealing material (not shown) ensures airtightness between the outer wall member 131 and the actuator 133, and the actuator 133 moves in the Z direction with respect to the outer wall member 131. It is possible.

At the portion indicated by IIIA in FIG. 3, for example, sealing material (not shown) ensures airtightness between the outer wall material 131 and the tie rods 129, and the tie rods 129 are very slightly positioned with respect to the outer wall material 131 in the Z direction. It is movable (by an amount corresponding to strain due to pressurization). If the rigidity of the external wall material 131 of the molding chamber 69 is sufficiently small with respect to the rigidity of the press frame 67, the external wall material 131 may be provided integrally with the tie rod 129 at the portion indicated by IIIA in FIG. .

Further, in the above explanation, it was explained that the mold placing table 7C, the mold pressing table 23 and the actuator 25 which form the pressure molding zone are supported by the press base 67, but the heating zone The mold placement table 7B forming the cooling zone, the mold placement table 7B forming the cooling zone, and the mold pressing table 23 are also supported by the press pedestal 67 in the same manner.

The mold movement positioning unit 9 is configured including the mold contact member 17 and the mold conveying member 19 as described above. The mold contact member 17 is provided integrally with the mold mounting table 7 as shown in FIGS. The mold conveying member 19 can be moved and positioned in the X direction by an actuator 20, and can be moved in the Y direction by an actuator (not shown) such as an air cylinder.

Further, the mold contact member 17 is formed in an elongated quadrangular prism shape, and one side surface serves as the first planar portion 11 . The mold conveying member 19 is formed in an "L" shape, one elongated flat surface inside the "L" is the second planar portion 13, and the other inside the "L". The elongated plane serves as the third planar portion 15 .

When moving and positioning the mold 3 by the mold movement positioning unit 9 , the first flat portion 11 , the second flat portion 13 , and the third flat portion 15 are brought into contact with the first mold member 29 . It is designed to touch.

Although the third planar portion 15 is perpendicular to the X direction, it may be inclined at a slight angle α° as shown in FIG. 4(c). As a result, when the mold conveying member 19 is retracted in the Y-axis direction without being moved in the X direction after the mold 3 is moved and positioned (when it is moved away from the mold contact member 17; from position P1 to position P2). When moving), the third planar portion 15 immediately separates from the mold 3, making it easier to maintain the positioning accuracy of the mold 3. In addition, FIG.4(c) is an enlarged view of the IVC part in Fig.4 (a).

Further, as shown in FIG. 4A, the end of the first planar portion 11 (the end on the upstream side in the X direction) prevents the mold 3 from being caught by the mold contact member 17. A guide surface (inclined surface) 135 for guiding the mold 3 is provided.

The operation of the mold movement positioning section 9 will be described.

In the state shown in FIG. 5(a), the mold 3 is placed on the mold mounting table 7B and the mold mounting table 7C, and the mold conveying member 19 is positioned on the first plane in the Y direction. It is positioned at a position (retracted position) P2 away from the shaped portion 11, and is positioned upstream in the X direction. In the state shown in FIG. 5A, the mold 3 and the third planar portion 15 are separated by a distance L5A1 in the X direction, and the mold 3 and the mold conveying member 19 are separated in the Y direction. are separated by a distance L5A2.

Subsequently, from the state shown in FIG. 5(a), the mold conveying member 19 is moved in the Y direction and positioned at the position (approaching position) P1 on the side of the first planar portion 11, as shown in FIG. 5(b). becomes the state indicated by .

Subsequently, from the state shown in FIG. 5(b), when the mold conveying member 19 is moved in the X direction and positioned downstream, the state shown in FIG. 5(c) is obtained. When moving from the state shown in FIG. 5B to the state shown in FIG. It is positioned on the mounting table 7C. Further, when the state shown in FIG. 5(b) shifts to the state shown in FIG. 5(c), the mold 3 mounted on the mold mounting table 7C is conveyed to the mold mounting table 7D. It is positioned on the mold mounting table 7D.

Subsequently, from the state shown in FIG. 5(c), the mold conveying member 19 is slightly moved upstream in the X direction and moved to the retracted position P2 in the Y direction. The state shown in 5(d) is reached.

Subsequently, when the mold conveying member 19 has moved upstream in the X direction from the state shown in FIG. 5(d), the state shown in FIG. 5(a) is reached.

As described above, the alignment adjusting section 27 is provided between the member 41 on the actuator side of the actuator 25 and the member 42 on the side of the second mold table 23, and the first mold table 7C. The alignment of the second mold table 23 with respect to is adjusted.

To explain further, as shown in FIG. 8, from the upper side to the lower side in the Z direction, the member 41 on the operator side, the first member 43, the member 42 on the second mold table 23 side, and the connecting body 137 are arranged. , and the die pressing table 23 are arranged in this order and are integrated. 8 is a centering collar, and reference numeral 141 in FIG. and the first member 43 to the member 41 on the actuator side.

Circular long holes 143 provided in the first member 43 and the second member 45 shown in FIG. 9A are holes through which the bolts 141 pass.

As shown in FIG. 9A, a bolt 147 is installed on the female screw portion 145 shown in FIG. 9B. This makes it easier to rotate the second member 45 around the central axis C1.

The alignment is adjusted by the alignment adjustment unit 27 by loosening the bolt 141 slightly, rotating the second member 45 with respect to the first member 43, and then tightening the bolt 141. done.

Further, in the above description, the alignment adjustment unit 27 adjusts the attitude of the mold pressing table 23 with respect to the mold mounting table 7C between the mold mounting table 7C and the mold pressing table 23 that constitute the pressure molding zone. is adjusted, the attitude of the mold placing table 7C with respect to the mold pressing table 23 may be adjusted instead of or in addition to this. Furthermore, the posture of the mold pressing table 23 with respect to the mold mounting table 7C may be adjusted by the mold mounting table 7D and the mold pressing table 23 that constitute the cooling zone.

As shown in FIG. 10, the hole 63 for installing the temperature sensor 57 is provided so as to extend horizontally from one side surface of the rectangular plate-like upper mold table 23 . Further, a hole 63 for installing another temperature sensor 57 is also provided so as to extend horizontally from one side surface of the rectangular plate-like mold placing table 7 .

The inner diameter of the hole 63 is slightly larger than the outer diameter of the lead wire 61 of the temperature sensor 57 and the outer diameter of the temperature measuring portion 59 of the temperature sensor 57 . In addition, since the lead wire 61 of the temperature sensor 57 is supported by the fixture 65, the lead wire 61 of the temperature sensor 57 is slightly meandering in the hole 63 due to elastic deformation. touches the inner surface of The position and attitude of the temperature sensor 57 in the hole 63 with respect to the second mold table 23 and the mold mounting table 7 are made constant.

In the configuration shown in FIG. 1, the mold mounting table 7B forming the heating zone and the mold pressing table 23 paired therewith constitute one set, and the mold mounting table forming the pressure molding zone. Only one set of mold pressing table 23 paired with 7C and one set of mold pressing table 23 paired with mold placement table 7D forming a cooling zone are provided. However, a plurality of sets of the mold placing table 7B and the mold pressing table 23 forming the heating zone, and a plurality of sets of the mold placing table 7C and the mold pressing table 23 forming the pressure molding zone form the cooling zone. A plurality of sets of the mold placing table 7C and the mold pressing table 23 are provided and may be arranged in the X direction.

Next, the operation of the glass molding machine 1 will be described.

As an initial state, the alignment is adjusted by the alignment adjusting unit 27, the molding chamber 69 is filled with nitrogen gas, the mold mounting table 7A is raised, and the infrared lamp heater device 105 is raised. The mold mounting table 7B forming the heating zone and the mold pressing table 23 paired with it are raised, and the mold mounting table 7C forming the pressure molding zone and paired with it are raised. The mold pressing table 23 is raised, and the mold placing table 7D forming the cooling zone and the mold pressing table 23 paired therewith are raised. Assume that 7E is rising. Also, in the initial state, the molds 3 are placed on each of the mold placement tables 7A, 7B, 7C, 7D, and 7E.

In this initial state, the infrared lamp heater device 105 is lowered on the mold mounting table 7B to heat the mold for a predetermined time, and the mold pressing table 23 is lowered on the mold mounting table 7C to heat the mold. is pressed for a predetermined time, and the mold pressing table 23 is lowered on the mold placing table 7D to cool (slowly cool) the mold for a predetermined time.

Subsequently, the infrared lamp heater device 105 is lifted, the mold pressing table 23 paired with the mold mounting table 7C is lifted, and the mold pressing table 23 paired with the mold mounting table 7D is lifted. lifts to eject the mold 3 placed on the mold mounting table 7E out of the molding chamber 69, and move the mold 3 in the X direction by the mold movement positioning unit 9 and the mold transfer unit 21. Moving downstream, the mold 3 is carried from outside the molding chamber 69 onto the mold mounting table 7A. Repeat these actions.

A molded product is formed in the cavity 35 of the mold 3 ejected from the mold mounting table 7E to the outside of the molding chamber 69 .

According to the glass molding machine 1, the mold movement positioning unit 9 for moving and positioning the mold 3 placed on the mold mounting table 7 on the adjacent mold mounting table 7 moves the mold 3 Since the movement speed can be freely set, when the mold 3 has been moved to the adjacent mold placing table 7, the mold 3 will move to the adjacent mold placing table 7. position accuracy can be increased.

In the glass molding machine 1, the mold 3 is positioned between the first planar portion 11 and the second planar portion 13 to position the mold 3 in the Y direction and to position the mold 3 in the X direction. The mold 3 is moved and positioned in the X direction by pressing the mold 3 by bringing the mold 3 into contact with the third planar portion 15 orthogonal to the mold 3 .

As a result, as described above, the die 3 can be positioned more accurately than when the die 3 is positioned between the V-shaped claws 151 . That is, when trying to position the mold 3 by sandwiching it between the V-shaped claws 151, a rare situation occurs in which the mold 3 contacts only one surface 153 of the V-shaped claws 151. The positioning accuracy of the mold 3 may deteriorate. However, in the glass molding machine 1, since the mold 3 is pushed by the third planar portion 15, the problem that occurs when the V-shaped claw 151 is used does not occur.

Furthermore, in the glass molding machine 1, in order to position the mold 3 in the X direction, the moving speed and the moving acceleration of the third planar portion 15 when pushing the mold 3 with the third planar portion 15 are is configurable.

As a result, the mold 3 can be prevented from being separated from the third planar portion 15 due to the inertial force of the mold 3, and the mold 3 can be positioned accurately in the X direction.

Further, according to the glass molding machine 1, the first planar portion 11 is provided on the mold contact member 17 provided on the mold placing table 7, and the second planar portion 13 and the second 3 flat portions 15 are provided on the mold conveying member 19, the structure of the mold movement positioning portion 9 is simplified.

Further, in the glass molding machine 1, when the mold conveying member 19 has finished conveying the mold 3 and is stopped, the first planar portion 11 and the second planar portion 13 in the Y direction are separated from each other. The value of the difference between the value of the distance L5B1 between and the value of the outer diameter D1 of the mold 3 is smaller than the value of the allowable error range for the positioning accuracy of the mold 3 in the Y direction. The mold 3 can be positioned in any direction with a simple configuration and operation.

Further, according to the glass molding machine 1 , a plurality of mold contact members 17 are provided, and the plurality of mold conveying members 19 are independently driven to move and position the plurality of molds 3 . Therefore, even if there are a plurality of molds 3 that require accurate positioning, each mold 3 can be accurately positioned.

Further, according to the glass molding machine 1, since the mold conveying section 21 is configured to simultaneously convey a plurality of molds 3 by one actuator and one conveying bar 157, the mold conveying section 21 The configuration is simple.

In the glass molding machine 1, the mold transfer section 21 (V-shaped claw 151) is used to transfer the mold 3 as a whole, and the mold movement positioning section 9 is used only where positioning accuracy is required. The mold 3 is conveyed using (a mold conveying member 19 having a planar portion 15). In other words, the mold movement positioning unit 9 is used to transport the mold 3 at the transport locations where accurate movement positioning is required, and the mold transport unit 21 is used to transport the mold 3 at other transport locations. are doing.

To explain further, the precise transfer of the mold 3 using the mold transfer positioning unit 9 with the mold transfer member 19 provided with the third planar portion 15 is performed in the second heating zone (Fig. 7 from a heating zone composed of a mold mounting table indicated by reference numeral 7Bb in FIG. pressure molding zone), and from the first pressure molding zone to the second pressure molding zone (the pressure molding zone composed of a mold mounting table and the like indicated by reference numeral 7Cb in FIG. 7). and from the second pressure molding zone to the first slow cooling zone (an slow cooling zone composed of a mold mounting table or the like indicated by reference numeral 7Da in FIG. 7), and the first It extends from the slow cooling zone to the second slow cooling zone (the slow cooling zone composed of the mold mounting table and the like indicated by reference numeral 7Db in FIG. 7). The mold 3 is conveyed at other locations by a mold conveying section 21 having V-shaped claws 151 .

The pressure molding zone and slow cooling zone are processes that affect the shape of the lens obtained by molding the material 5, and particularly require precision in transportation. Of the above-described carriages, the mold movement positioning unit 9 may be applied only to carriages between zones that require higher accuracy.

4 and 5 show an example in which the mold movement positioning unit 9 is applied to transportation between three adjacent zones. By limiting the conveying portion by the mold movement positioning unit 9 in this way, the length of the arm 22 (see FIG. 4) on which the mold conveying member 19 is installed can be shortened, and the influence of thermal displacement can be reduced. can be reduced. If the arm 22 is provided with a cooling device such as water cooling, thermal displacement can be further reduced.

Since all the transportation of the mold 3 between the mold mounting tables 7 is not performed using the mold movement positioning unit 9, the mold transport unit 21 is used for transportation that does not require positioning accuracy. , the cost can be reduced as compared with the case where all the transportation of the mold 3 between the mold mounting tables 7 is carried out using the mold movement positioning unit 9 .

Further, in the glass molding machine 1, the alignment adjustment section 27 includes the first member 43 provided with the first contact surface 47 and the second member 45 provided with the second contact surface 49. The first contact surface 47 and the second contact surface 49 are in surface contact with each other. By changing the position of the second member 45 with respect to the first member 43, the alignment of the second mold table 23 with respect to the first mold table 7 is adjusted. That is, since the alignment can be adjusted only by changing the position of the second member 45 with respect to the first member 43, the alignment of the second mold table 23 with respect to the first mold table 7 can be adjusted. has become easier.

Further, even when the mold 3 used for molding the glass 5 is changed, the alignment can be adjusted only by changing the position of the second member 45 with respect to the first member 43, so that the mold 3 can be changed. Even if it is changed, it becomes easy to adjust the alignment of the second mold table 23 with respect to the first mold table 7 .

Further, according to the glass molding machine 1, the alignment adjusting section 27 rotates the second member 45 with respect to the first member 43 around the predetermined central axis C1, thereby Since the alignment of the upper mold table 23 is adjusted, the alignment of the upper mold table 23 with respect to the lower mold table 7 can be easily adjusted.

Further, according to the glass forming machine 1, the first member 43 and the second member 45 are formed in a disk shape in which the other plane 47 is slightly inclined with respect to the one plane 51. The two inclined surfaces 47 are in contact with each other. Since the outer peripheries of the two overlap each other, the configuration of the alignment adjusting section 27 is simplified.

Further, according to the glass molding machine 1, marks 55 are provided on the outer periphery of the first member 43 and the outer periphery of the second member 45 to indicate the rotation angle of the second member 45 with respect to the first member 43. Therefore, it is easier to adjust the alignment of the upper mold table 23 with respect to the lower mold table 7 .

Further, in the glass molding machine 1, when the temperature sensor 57 is installed on the second mold table 23, the temperature measuring part 59 of the temperature sensor 57 is positioned deep in the hole 63, and the temperature sensor 57 A lead wire 61 passes through the hole 63 and extends outside the second mold table 23 . This facilitates alignment adjustment by the alignment adjustment unit 27 .

In addition, even if the alignment is adjusted by the alignment adjusting section 27 (the attitude of the second mold table 23 is changed), the engagement state of the temperature sensor 57 with respect to the hole 63 does not change. The characteristics of the temperature sensor 57 do not change even if the adjustment is made by .

To explain further, in the glass molding machine 1 , a predetermined portion of the portion of the lead wire 61 of the temperature sensor 57 extending outside the second mold table 23 is connected to the second mold table 23 . 23, the position and attitude of the temperature sensor 57 in the hole 63 with respect to the second mold table 23 are fixed.

Thereby, it is possible to further prevent the characteristics of the temperature sensor 57 from changing even when the alignment adjustment unit 27 performs the adjustment.

By the way, the above description may be understood as an invention of a device for transporting a transported object.

That is, (one) transported object (for example, a mold) placed on one of a plurality of transported object placing tables (for example, a mold placing table) is When moving onto another one of the plurality of transported object placing tables and performing positioning on the other one of the transported object placing tables, the transported object placing table It may be grasped as a device for transporting an object to be transported which is configured so that the moving speed of the object can be freely set.

In addition, an object conveying member (for example, a metal mold conveying member) for conveying the object to be conveyed and an actuator (for example, an electric cylinder) for moving and positioning the object conveying member for conveying the object to be conveyed are provided. wherein the transported object conveying member has a planar portion perpendicular to the conveying direction of the transported object (moving direction of the transported object conveying member),
The transported body is moved and positioned in the transport direction by pressing the transported body with the planar portion in contact with the transported body, and In order to perform the positioning of the transported object transporting device, it is possible to freely set the moving speed of the planar portion (transported object transporting member) when the planar portion pushes the transported object. can be grasped as

In addition, an object placed on each of a plurality of object placement tables arranged in a predetermined direction (X direction) is moved from the object placement table to this object placement table. A transported object transporting device for sequentially transporting the plurality of transported object placement tables to another adjacent transported object placement table in a direction in which the plurality of transported object placement tables are aligned, wherein the plurality of transported object placement tables moving an object placed on a predetermined object placing table among them onto another object placing table and positioning the object on the another object placing table a first conveying unit (mold movement positioning unit 9) configured to be able to freely set the moving speed of the conveyed object when carrying out, and the It may be grasped as a transported object transporting apparatus having a second transport part (mold transport part 21) that transports a transported object other than the transported object.

In this transported object transporting device, the first transport unit includes a first transported object transporting member for transporting the transported object, and the first transported object transporting member for transporting the transported object. and a first actuator for moving and positioning the first transported body transport member having a planar portion perpendicular to the transport direction of the transported body, The transported body is moved and positioned in the transport direction by pressing the transported body with the planar portion in contact with the transported body, and In order to perform the positioning, it is possible to freely set the moving speed of the flat portion when the flat portion pushes the object to be conveyed.

Further, in this transported object transporting apparatus, when there are a plurality of transported objects to be transported by the first transport unit, the first transport unit transfers each of the plurality of transported objects to the plurality of transported objects. When there are a plurality of objects to be conveyed by the second conveying unit, the second conveying unit is configured to convey the objects individually using each of the first actuators. It is configured such that the objects to be transported are collectively transported using one second actuator.

Furthermore, the above description may be understood as an invention of a method.

That is, the mold placed on one mold placing table out of the plurality of mold placing tables is moved to another mold placing table out of the plurality of mold placing tables. A mold positioning method for moving above and positioning on the other one mold placing table, wherein the moving speed of the mold can be freely set for the positioning. It may be grasped as a mold movement and positioning method (glass molding mold movement and positioning method).

Further, the alignment adjusting method adjusts the alignment of the planar portion of the second mold table with which the second mold member contacts with respect to the planar portion of the first mold table with which the first mold member contacts. Then, while maintaining a state in which the first contact surface of the first member and the second contact surface of the second member are in surface contact with each other, the contact surface of the second member with respect to the first member is maintained. It is understood as an alignment adjustment method (a mold table alignment adjustment method) characterized by adjusting the alignment of the second mold table with respect to the first mold table by changing the position. good too.

REFERENCE SIGNS LIST 1 glass molding machine 3 mold 7 first mold table 23 second mold table 25 actuator 27 alignment adjustment part 37 planar part 39 planar part 43 first member 45 second member 47 first member contact surface 49 second contact surface 55 mark 57 temperature sensor 59 temperature measuring part 61 lead wire 63 hole C1 central axis

Claims (3)

a first mold table having a planar portion with which the mold contacts;
a second mold table having a planar portion with which the mold contacts;
In order to sandwich the mold installed on the first mold table with a predetermined force between the second mold table and the first mold table, the second mold is provided. an actuator that drives the mold table;
an alignment adjustment unit provided between the actuator and the second mold table for adjusting the alignment of the second mold table with respect to the first mold table;
has
The alignment adjustment section includes a first member provided with a first contact surface and a second member provided with a second contact surface. and the second contact surface are in surface contact with each other, and by changing the position of the second member with respect to the first member, the second mold with respect to the first mold table configured to adjust the alignment of the table for
The alignment adjustment section rotates the second member with respect to the first member about a predetermined central axis, thereby adjusting the alignment of the second mold table with respect to the first mold table. configured to adjust alignment,
The first member is formed in a disk shape in which the other plane is inclined with respect to one plane,
The second member is also formed in a disk shape with one plane inclined with respect to the other plane,
the first contact surface is the other plane of the first member;
the second contact surface is the other plane of the second member;
The predetermined central axis is the central axis of the first member,
the outer periphery of the first member and the outer periphery of the second member overlap each other when viewed in the extending direction of the central axis of the first member;
Each of the first member and the second member is provided with an arc-shaped long hole, and the first member and the second member are integrated by a bolt passing through the long hole. A glass forming machine characterized by: A glass forming machine according to claim 1 ,
A glass molding characterized in that marks are provided on the outer periphery of the first member and the outer periphery of the second member to indicate the rotation angle of the second member with respect to the first member. machine. The glass molding machine according to claim 1 or 2 ,
A temperature sensor having a temperature measuring part and a lead wire is provided,
The second mold table is provided with a hole for installing the temperature sensor,
The hole extends from a predetermined point on the outer surface of the second mold table, excluding a portion where the planar portion and the actuator are engaged, to a predetermined point inside the second mold table. extends up to
When the temperature sensor is installed on the second mold table, the temperature measuring part of the temperature sensor is positioned deep in the hole, and the lead wire of the temperature sensor passes through the hole, extending outside the second mold table ,
A predetermined portion of a portion of the lead wire of the temperature sensor extending outside the second mold table is integrally supported by the second mold table. , the position and attitude of the temperature sensor in the hole with respect to the second mold table are fixed,
The value of the inner diameter of the hole is slightly larger than the value of the outer diameter of the lead wire of the temperature sensor and the value of the outer diameter of the temperature measuring part of the temperature sensor, and the lead wire of the temperature sensor is positioned inside the hole. a glass forming machine, wherein the lead wire and the temperature measuring portion are in contact with the inner surface of the hole with an urging force.

Images