CN1250467C - Glass plate cutting mechanism and edge cutter - Google Patents

Abstract

An object of the present invention is to provide a glass plate edge trimming device for processing the periphery of a glass plate, that is, to remove edge allowance by edge trimming and to discard the removed glass ear. The device includes: a conveyor 2 for conveying the glass sheet G in the horizontal direction, a cutting mechanism with cutting members 3 to 6 and supporting members 7 to 10 near the front, rear, left, and right sides of the conveyor 2, and the conveyor 2. The glass plate positioning devices 23 to 26 near the front, rear, left, and right sides; the cutting member is provided with a pressure element for applying pressure to the glass plate and a first end face intersecting with the above-mentioned pressure element, and the pressure element can move up and down in the vertical direction; the support member and the corresponding The first end face of the cutting device is oriented in parallel, and has a second end face separated from the first end face in the horizontal direction, and the support member can move up and down in the vertical direction; the device is provided with a second end face opposite to the corresponding support member. The first adsorption means and the second adsorption means formed in the pressure element.

Description

Glass plate cutting mechanism and trimming device

technical field

The invention relates to a glass plate cutting mechanism and an edge trimming device. Specifically, the present invention relates to such a glass sheet edge trimming device that separates narrow edge strips (ears) from a glass sheet along preformed score lines by applying a bending force to the edge of the glass. The invention also relates to a trimming device equipped with the above-mentioned cutting mechanism.

Background technique

A glass plate beveling device is known, for example, a glass plate beveling device is described in Japanese Unexamined Patent Publication No. 8(1996)-253336. The trimming device described above is provided with upper and lower pressure members which can be used to apply pressure to the glass sheet on both sides of the score line. In the example of trimming a glass sheet shown in FIG. 10A , the lower pressure member may apply upwardly acting pressure from the side of the glass inward with respect to the trimming score lines La and Lb, while the upper pressure member may apply pressure with respect to The score lines La and Lb exert a downwardly acting pressure (i.e. from both sides of the so-called ears) towards the outer sides of the glass G, so that bending forces can be formed on both sides of the score lines La and Lb . The ears E separated along the score lines La and Lb will fall downward. In this way, the main glass body B can be formed after the ear part E ( FIG. 10B ) is separated, and the main glass body B with a predetermined size determined by the position of the scoring line will be transported to the next processing position.

In known trimming devices, the ears separated by the trimming fall into the device and can be crushed inside the device. Specifically, since detached ears can fall below the glass sheet conveyance path, the device requires some space and a container to collect the falling debris.

Contents of the invention

The present invention aims to solve the above-mentioned problems, and provides a glass plate cutting mechanism and a trimming device capable of trimming by separating peripheral parts and removing the separated ears as waste glass.

The glass plate cutting mechanism of the present invention comprises;

A cutting member and a supporting member for cutting by applying pressure to the glass sheet in mutually opposite directions on both sides of the score line, the cutting mechanism being characterized by:

the cutting member has a pressure element contacting the ear of the glass sheet in equal linear contact with the score line, and the pressure element applies pressure perpendicularly to the ear;

The support member has: a glass support element having an edge, the glass support element supports the glass sheet so that the score line is parallel to the edge, and the ear of the glass sheet extends from the edge; and a glass receiver, the glass receiver Comprising a vertical surface intersecting the glass support element at the edge and a horizontal surface intersecting the vertical surface and extending under the ears; the cutting member and the supporting member can be driven vertically relative to each other in an up and down direction; and the cutting member has a glass adsorption device, the glass Suction means hold and remove the ears which are cut out and temporarily received by the glass receiving means.

The glass adsorption means includes first glass adsorption means formed on a first end surface of the cutting member opposite to the vertical surface of the glass receiver.

Since the cut glass pieces are supported by the suction of the first glass suction means in the above structure, the glass pieces do not fall onto the glass plate conveying path. For example, if the lower surface of the glass sheet being processed on the support member is covered with a film, the edge piece of the glass follows the pre-scored edge piece by lowering the cutting member and applying a downward force to the upper surface of the glass to create a bending moment. When such a glass sheet is trimmed by line separation, the glass pieces separated by cutting will remain connected to the film. The hanging portion of the above-mentioned glass separator will be supported by the suction of the first glass plate suction device. Then, that is, the glass shards are discarded after the cutting member is moved to a predetermined position.

In the cutting member of the device of the present invention, the first glass plate adsorption device is made in the form of a plurality of adsorption holes, which can absorb the glass plate under the effect of negative pressure. Since the glass shards can be freely connected and disconnected from the vacuum source, the glass shards can be easily separated from the suction device. The provision of a plurality of suction elements facilitates the support of the narrow and long strip of glass formed by trimming.

The glass can be kept in a horizontal position by using the above-mentioned glass support elements when the glass sheet is being conveyed, for example when being conveyed by a belt conveyor. Since the glass fragments separated by cutting from the film-coated glass plate can also be arranged along the second end surface, the position of the glass fragments can be stabilized, and the fragments can be more firmly held by the vacuum action of the first glass adsorption device. Support, hang and hold. Although the second end surface is generally oriented vertically, this end surface may also be inclined.

It is suggested that in the cutting mechanism of the present invention, at least the cutting member or the supporting member can move toward each other in opposite directions or reciprocate away from each other in opposite directions, so that the above-mentioned first suction means can approach the separated glass shards suspended from the film. More specifically, when the cutting member is initially positioned adjacent to the support member, there is a greater risk of the cutting member being disturbed by detached glass shards. In this case, therefore, it is advisable to move the two components apart, and after cutting it is advisable to orient the first adsorption element towards the glass shards, so that the retention of the shards can be improved.

The pressure member is in the form of a horizontal surface, and wherein the glass absorbing means comprises a second glass absorbing means formed on the pressure member to face said horizontal surface of said glass receiving means.

Such a second suction device may be necessary for the cutting of uncoated glass. If the glass is not coated, the debris will fall directly into the glass receiver. Furthermore, arranging the second suction device in the pressure element of the cutting member on the side opposite the glass receiver facilitates the support of the glass shards by suction.

The above-mentioned second adsorption device formed in the cutting mechanism can hold the glass plate through adsorption under the effect of negative pressure. This second adsorption device can be made into a plurality of elongated adsorption openings, and these adsorption openings can be located on the pressure member facing the glass receiving in the surface of one side of the component. When these suction openings are arranged in the longitudinal direction, they prevent positioning errors during the application of force to the glass. Irrespective of whether the suction is made in the form of a single elongated suction opening or in the form of several longitudinally arranged suction openings, the suction formed under the effect of negative pressure will reliably hold even an extremely long and narrow glass strip.

When the cutting member of the cutting mechanism of the present invention can reciprocate in the longitudinal direction of the first end surface, that is, when reciprocating in a direction parallel to the surface of the elongated glass shards, the glass shards can be reliably transported to the discarding position without affecting the mechanism. Other parts interfere.

Furthermore, in order to improve the reliability of supporting the glass plate with the supporting member, preferably, a third glass holding suction device may be provided for the cutting mechanism of the present invention, which may be formed in the above-mentioned supporting member.

A glass plate trimming device of the present invention, the device comprises:

a conveying device for conveying said glass sheet in a horizontal direction;

A glass plate cutting mechanism of the above type, wherein the glass plate cutting mechanism is located near the front end and the rear end of the conveying device;

a leading edge detecting device, which is located near the front end of the conveying device, for detecting the leading edge of the glass sheet; and

A rear edge detection device, which is located near the rear end of the conveying device, is used to detect the rear edge of the glass sheet.

Using the above-mentioned mechanism can facilitate trimming of the front and rear edges of the glass plate, and facilitate the smooth and unbreakable disposal of glass fragments formed by cutting. If it is also necessary to trim the left and right sides of the glass plate, the glass plate can be held by suction and turned through a 90-degree angle by rotating the suction device, or the glass plate is connected to a turntable on the above-mentioned conveying device and used The turntable is rotated through a 90-degree angle, so that the next step of edge trimming is performed on the left and right edges.

According to another embodiment, the glass plate trimming device of the present invention comprises:

a conveying device for conveying said glass sheets in a horizontal direction;

glass sheet cutting mechanisms of a type as described above, the mechanisms being located near the ends of the conveyor;

means for positioning said glass sheets widthwise on either side of the conveyor;

The above-mentioned device for positioning the glass sheet in the width direction may apply pressure to both edges of the glass sheet in a direction perpendicular to the conveying direction.

The use of the above-mentioned mechanism can facilitate trimming of the left and right ends of the glass plate, and facilitate the smooth and unbreakable disposal of glass fragments formed by cutting. If it is also necessary to trim the front and rear sides of the glass plate, the glass plate can be held by suction and turned through a 90-degree angle by rotating the suction device, or the glass plate is connected to a turntable on the above-mentioned conveying device and used The turntable is rotated through a 90-degree angle, so that the next step of edge trimming is performed on the left and right edges.

According to another embodiment of the present invention, the glass plate trimming device of the present invention comprises:

a conveying device for conveying the glass sheets in a horizontal direction;

glass sheet cutting mechanisms of the type described above, these mechanisms being located on the sides and near the front and rear ends of the conveyor;

means for positioning said glass sheets widthwise on either side of the conveyor;

a device for detecting the leading edge of the glass sheet positioned near the front end of the conveyor; and

a device for detecting the rear edge of the glass sheet, which is located near the rear end of the conveyor;

The above-mentioned means for positioning the glass sheet in the width direction may apply pressure toward both edges of the glass sheet in a direction perpendicular to the conveying direction.

The above-mentioned structure can trim the edge of the entire periphery of the glass plate without using a mechanism capable of rotating the glass plate by 90 degrees.

Brief description of the drawings

FIG. 1 is a three-dimensional view of a device for edge trimming a glass plate according to an embodiment of the present invention.

Figure 2 is a side view of the device of Figure 1 .

FIG. 3 is a top view of the apparatus of FIG. 2 .

Fig. 4 is a right side view of the device of Fig. 2 .

Fig. 5 is a side view of main parts of the edge trimming machine of Fig. 2 .

6A is a partial sectional view of the main part of the edge trimmer of FIG. 2, showing the front cutting mechanism; FIG. 6B is a sectional view taken along line VI-VI and viewed in the direction of the arrow.

7A to 7F are side views illustrating the operation of the rear and front cutting mechanisms in FIG. 6 .

Fig. 8 is a side view of a main part of the apparatus of Fig. 2, showing a film removing mechanism. FIG. 8A shows the situation before film removal, and FIG. 8B shows the situation during film removal.

Fig. 9 is a partial side sectional view of the main part of the edge trimming device of Fig. 2, which view shows another method of using the front cutting mechanism.

Figure 10A is a top view of a trimmed object in the form of a glass sheet with score lines. Figure 10B is a top view of the glass sheet after trimming.

Detailed ways

Examples of the glass sheet cutting mechanism and edge trimming device of the present invention will be described with reference to the accompanying drawings.

Figure 1 is a three-dimensional view of a device for edge trimming a glass sheet according to the invention. FIG. 2 is a side view of the device of FIG. 1 and FIG. 3 is a top view of the device of FIG. 2 . Fig. 4 is a right side view of the device of Fig. 2 . The following description will be made with reference to FIGS. 1 to 4 .

A glass sheet transport mechanism used in the trimming device 1 of the present invention comprises a horizontal belt conveyor 2 . The glass plate G placed on the belt conveyor 2 is conveyed in the direction of the arrow A. As shown in FIG. The direction shown by the arrow will be referred to as a forward direction, and the direction opposite to the arrow will be referred to as a backward direction. The direction perpendicular to the conveying (forward and rearward) directions in the horizontal plane will be referred to as the lateral or width direction or left-right direction. Cutting and supporting members are respectively provided on the front, rear and left and right sides of the conveyor 2, and these members are used to pass from The edge of the plate cuts and separates the ears to trim the glass plate. These cutting and support members form a glass plate cutting mechanism. These mechanisms are respectively: formed by a front cutting member 3 and a front support member 7 a front cutting mechanism; a rear cutting mechanism formed by a rear cutting member 4 and a rear supporting member 8; a left cutting mechanism formed by a left cutting member 5 and a left supporting member 9; and, A right cutting mechanism formed by a right cutting member 6 and a right supporting member 10.

The supporting mechanisms 7 , 8 , 9 , 10 can be lifted by a cylinder 11 , while the cutting mechanisms 3 , 4 , 5 and 6 can be lifted by an electrically driven servo cylinder 12 . The speed and stop position of the stroke of the servo cylinder 12 can be adjusted using a fine adjustment mechanism. The glass sheet G has score lines previously formed in its surface for breaking the glass along these lines by applying a force to the glass sheet by means of the supporting and cutting members along the opposing Acting in the vertical direction, the support and cutting members can squeeze the glass sheet on both sides of the score line. More specifically, the support member supports the glass sheet G from below, while the cutting member presses against the glass sheet G in a downward direction from the edge (ear E) side of the score line, here forming a downward direction of bending force.

As shown in FIGS. 2 to 4 , the front cutting member 3 and the rear cutting member 4 can reciprocate in left and right directions by a so-called rodless cylinder 13 for mechanical connection. This reciprocating movement is necessary for conveying and discarding the separated glass pane ears E towards the sides of the device 1, as will be described below. Although in the illustrated embodiment the rodless cylinders 13 are located above the conveyance path of the glass G and extend to the left, they could also extend to the right if desired.

The left and right cutting members 5 and 6 and the left and right support members 9 and 10 are constructed so that the glass plate G can be positioned left and right with respect to the left and right sides of the glass plate G as the left and right hand positioning members 25 and 26 described later can be used. The score line moves left and right.

As shown in Figures 3 and 4, the left cutting member 5 and the right cutting member 6 can move back and forth along the left and right directions through a screw-type feeding mechanism, wherein the screw-type feeding mechanism can be formed by a screw The shaft 14 is formed with a nut (not shown). As will be described hereinafter, these reciprocating movements are necessary to determine the dimensions of the scored glass sheet and, in particular, the position of the score line La (FIG. 10A). The screw shaft 14 can be divided into left and right parts by a connecting device 15 which connects the two parts of the screw. The left part 14a of the screw has a left-handed thread and the right part 14b of the screw has a right-handed thread. The screw shaft 14 can be driven and rotated by a motor 16 through a chain 16a, so that the two cutting members 5 and 6 can approach each other in opposite directions synchronously or separate from each other in opposite directions.

As can be seen from Fig. 4, the left support member 9 and the right support member 10 can reciprocate left and right by a screw-type feed mechanism, wherein the screw-type feed member can be composed of a screw shaft 17 and a nut (not shown in the figure). shown) composition. As will be described hereinafter, these reciprocating movements are necessary to displace the above-mentioned members in the same direction as the above-mentioned left and right cutting members 5 and 6 move left and right. The screw shaft 17 is divided into left and right parts by a connecting device 18, wherein the connecting device 18 connects the two parts of the screw shaft. The left part 17a of the screw has a left-handed thread and the right part 17b of the screw has a right-handed thread. The screw shaft 17 is driven and rotated by a motor 19, so that the two supporting members 9 and 10 can approach each other in opposite directions or separate from each other in opposite directions synchronously.

In FIGS. 2 to 4, reference numeral 20 denotes a guide rod, which guides the front, rear, left and right cutting members 3, 4, 5, 6 during their up and down movement. Similarly, reference numeral 21 represents a guide rod used for guiding during the up and down movement of the front, rear, left and right supporting members 7, 8, 9, 10, while the reference numeral 22 represents a guide rod used for cutting the left and right cutting members 5, 6. The guide bar that plays a guiding role in the process of moving left and right. Guide rods for guiding the right and left support members 9 and 10 are not shown in the figures. However, it can be assumed that they also exist.

The trimming device 1 is equipped with a front positioning device 23 and a rear positioning device 24, and these positioning devices are used to position the glass plate G in the front and rear motions, and the trimming device 1 is also equipped with a left positioning device 25 and a Right positioning devices 26 are used to position the glass plate G in the left and right motion. The above-mentioned positioning devices 23, 24, 25 and 26 make it possible to displace the glass sheet G in a position in which the cutting line of the glass is located between the respective cutting and supporting members.

FIG. 5 shows the structure of the front positioning device 23 . Since the rear positioning means 24 are identical, only the front positioning means will be described here. The front positioning device 23 is provided with optical sensors 29 connected to a support 28 movable horizontally in the fore-and-aft direction. These optical sensors can be positioned to stop the glass sheet G in several predetermined positions. The optical sensors 29 can be illuminated by light transmitted by an optical fiber, and they are able to measure the light reflected from the glass pane G being transported. The invention is not limited to the use of optical sensors, but any other type of sensor can be used for this purpose. As shown in FIGS. 1 to 4, the left and right positioning devices 25 and 26 are provided with cylinders 30 for shifting the left and right edges of the glass plate G toward the center of the trimming device. It is suggested that several such positioning devices can be mounted on the left and right sides. A pressure pad 30 is attached to the end of each cylinder 30 rod. The initial position of the cylinder 30 can be adjusted by holding the holder 30b of the cylinder 30, and the position can be shifted to the left or right. The adjustment mechanism can be realized in the form of a rack and pinion (not shown), wherein the rotation of the pinion can be controlled by a dial 30c. Several floating pads (not shown) may be installed between the conveyor belts 2 to keep the glass sheet G in a floating state. During the operation of the above-mentioned positioning means, leftward and rightward positioning of the glass sheet with the use of the left and right positioning means 25 and 26 can be realized by using the above-mentioned floating pads for maintaining the glass sheet in a floating state. The floating condition of the glass sheet will facilitate its displacement to the left and right and prevent damage to the surface of the glass sheet. If necessary, the operation of the left and right positioning devices 25 and 26 can be synchronized with the operation of the above-mentioned left and right cutting members 5, 6 and left and right support members 9, 10. The following instructions are for cutting and supporting components. The lower ends of the respective cutting members 3 , 4 , 5 and 6 are located above the conveying path of the glass sheet G and they can be shifted by means of servo cylinders 12 towards a level below said conveying path. This downward movement is accompanied by the application of pressure to the ears E of the glass pane G. As shown in FIG. On the other hand, the support members 7, 8, 9 and 10 are located below the conveyance path of the glass sheet G, and they can be displaced upward toward the above conveyance path by the cylinder 11 to support the glass sheet G from below.

6 and 8 show the structures of the front cutting member 3 and the front supporting member 7 . Since the structures of the rear cutting member 4 and the rear supporting member 8, the left cutting member 5 and the left supporting member 9, and the right cutting member 6 and the right supporting member 10 are respectively the same as those of the front cutting member 3 and the front supporting member 7, the following Only the latter components 3 and 7 will be described in detail. As shown in FIG. 6A, the support member 7 has an elongated edge-receiving rod 32 extending along the edge of the glass sheet G. As shown in FIG. The edge-trimming receiving rod 31 has a third adsorption member 31, which is used to adsorb the surface of the glass plate. Above-mentioned third adsorption member 32 links to each other with adsorption device by a pipe 32a, and adsorption device can be an ejector (ejector) (not shown) for example, and this adsorption member 32 can be placed under the situation of negative pressure easily or from Release under negative pressure. The cut edge receiving rod 31 has a substantially L-shaped cross section. The upper horizontal surface of the rod 31 forms a glass support portion 31 c which is coplanar with the adsorption surface of the third adsorption member 32 . During cutting of the ear portion E of the glass plate G, the third suction member 32 may fix the glass plate G to the supporting member 7 . The above-mentioned cutting member 3 can be lowered into the angular space formed by the mutually perpendicular feet of the L-shaped profile of the cutting edge receiving rod 31 . The lowering of the cutting member 3 breaks the glass sheet G along the score line and pushes the separated part downwards. One surface of the above-mentioned angular space forming the L-shaped trimmed receiving rod is the inner vertical surface 31a. When the glass sheet G is covered with a film, a portion of the glass separated by cutting will hang on the film and come into contact with the surface 31a. In view of the above, the surface 31a may be covered with a bumper made of rubber or soft synthetic plastic.

The other surface of the above-mentioned angular space forming the L-shaped cut edge receiving rod forms a glass plate surface 31b. The line where the support portion 31c intersects the inner vertical surface 31a forms the cutting edge of the support member 7 , 8 , 9 , 10 . During the formation of cuts in the glass sheet G along the score lines, these cut edges may serve as fulcrums for the resulting bending moments.

The cutting member 3 is parallel to the above-mentioned trim receiving rod 31 and has a cutting rod 33 capable of slight movement in the horizontal direction. The cutting rod 33 is located on the outer side with respect to the trimming receiving rod 31 . The cutting rod 33 may have a rectangular cross-section and may be displaced by a cylinder 24 into proximity to the support member 7 . Furthermore, on the side facing the cutting rod 33 , the supporting member 7 has a vertical surface 33 a parallel to the inner vertical surface 31 a of the trim receiving rod 31 . The vertical surface 33a forms a corresponding first end surface. The first end face surface 33a can support a plurality of first adsorption members 25 which are arranged in the longitudinal direction of the cutting rod 33 and face the second end face surface 31a. The first adsorption member 35 includes several bell-shaped members made of soft material and protruding from the first end face surface 33a. A suction hole 35a is formed at the center of each bell-shaped member. The adsorption hole 35a can be connected with the adsorption device through a pipe 35b, and the adsorption device can be a discharger (not shown). The adsorption hole can be freely connected with or disconnected from the adsorption device.

In the illustrated embodiment, the device is configured such that the cutting rod 33 is movable towards the support member 7 . However, the present invention is not limited to this structure, and the supporting member 7 can also move relative to the cutting rod 33 if necessary.

Furthermore, in the above-described embodiment, the first end surface 33a and the second end surface 31a are substantially perpendicular. This feature is not limiting for the invention, the above-mentioned end faces can also be inclined forwards or backwards.

The lower surface of the cutting rod 33 is also horizontal, and it has a pressure portion 36 for pressing the ear portion E of the glass sheet G. As shown in FIG. The pressure portion 36 has a plurality of second adsorption members 37 arranged along the cutting bar 33 and facing the above-mentioned glass receiving surface 31b. The second adsorption element has an elliptical adsorption hole, and the adsorption hole is connected to an adsorption device through a pipe 37a, and the adsorption device may be a discharger (not shown). The adsorption hole can be freely connected with or disconnected from the adsorption device. Since the second adsorption member 37 is formed in the pressure portion 36 and does not extend beyond the surface of the pressure portion, the second adsorption member 37 does not interfere with the glass plate G during the contact between the pressure portion and the glass.

As shown in FIG. 6B , the elliptical second adsorption elements 37 have the major axis of the ellipse oriented along the longitudinal direction of the cutting rod 33 , and these adsorption elements 37 are arranged in a staggered manner. However, they can also be arranged in a row if desired. The linear arrangement of the adsorption elements is preferable, for example, the narrow and long ears E can be reliably adsorbed and connected.

Above-mentioned trimming device 1 can operate as follows:

After the coated glass plate G is placed on the conveyer 2 for conveying of the device 1, the glass plate G will be supported on the conveyer in a floating state by the floating pads, the floating pads are not shown in the figure, but they Can be positioned in the space between the conveyor belts 2 . At the same time, the glass plate G is shifted leftward or rightward into a predetermined position by the left and right positioning devices 25 and 26 . When the left and right edges of the glass plate G reach the above positions, the positioning operation is completed. After the floating mat is lowered, the conveyor 2 reverses and the glass plate G returns. Then, the rear positioning device 24 starts, and when the rear edge of the glass plate G is detected, the conveyor 2 stops. At this time, the score line Lb ( FIG. 10A ) of the glass plate G is disposed parallel to and interposed between the first end surface 33 a of the rear cutting member 4 and the second end surface 31 a of the rear support member 8 . In this way, the rear positioning device 24 is set in the desired position. The above action positions the rear edge.

Then, as shown in FIG. 7A, the rear support member 8 is raised due to the action of the cylinder 11 (FIG. 2) until the score line Lb (FIG. 10A) on the edge of the glass plate G is lifted from below and from the opposite side of the glass plate 2a. It is supported and fixed to the lower surface of the glass plate G by the suction of the third suction device 32 (FIG. 6).

As shown in Figure 7B, at the same time as the above-mentioned actions, the rear cutting element 4 is lowered by the servo cylinder 12 (Figures 3 and 4), so that its pressure element 36 can apply a downward force to the ear E of the glass plate G. force. By this, the glass plate G is cut along the score line, so that the separated ears E are suspended due to the film F, and come into contact with the second end surface 31 a of the cut edge receiving rod 31 .

FIG. 7C shows the rear cutting member 4 in the lower position, in which its first suction element 35 is in contact with the ear E. FIG. This action sets the stroke of the servo cylinder 12 .

As shown in FIG. 7D , the cutting rod 33 of the rear cutting member 4 can move close to the second end surface 31 a of the trimming receiving rod 31 under the action of the cylinder 34 ( FIG. 6 ). The first suction device 35 is activated and connected to the ear E.

Fig. 7E shows a situation of the cutting rod 33 of the rear cutting member 4, in this case, when the first suction device 35 remains connected to the ear E, the first suction device 35 can leave the cutting edge by the cylinder 34 Receive rod 31. In this way, the mechanism can be preset for conditions in which the corresponding part can be raised without interfering with other components.

Figure 7F shows a situation in which the rear cutting member 4 is returned to its upper position by the servo cylinder 12 while it is still connected to the ear E by suction. The film on the ear E is peeled off so that only the former (ie the ear E or the glass shard) remains attached to the first adsorption element 35 .

Finally, the rodless cylinder 13 is activated (Figures 2 to 4), and as shown in Figure 4, the rear cutting member 4 moves up (to the left). At a point outside the conveying path of the glass sheet G, the operation of the first suction element 35 ceases and the ear E is discarded into a glass shard collection container (not shown), which may be located below.

After the trimming of the rear edge of the glass plate is completed, the front edge of the glass plate can be trimmed. For this purpose, the conveyor 2 is activated, the glass sheet is moved forward, and when the front edge of the glass sheet G is detected, the front positioning device is stopped. In the stopped state, the front score line Lb ( FIG. 10A ) of the glass sheet G is located between the first end face 33 a of the front cutting member 3 and the second end face 31 a of the first support member 7 . The above operation sets the front positioning device 23 .

Thereby, following the above-mentioned operations of the front cutting member 3 and the front supporting member 7 (FIGS. 7A to 7F), trimming of the front edge is completed, and the front cutting member 3 causes the front glass ear E to drop into the glass shard collection container, The container is located outside the glass sheet transport path.

The left and right edges are trimmed simultaneously. Specifically, the left and right cutting members 5 and 6 and the left and right supporting members 9 and 10 are positioned relative to the score line L on the glass plate G by respective screws 14 and 17 . More specifically, on the first end faces 33a of the cutting members 5 and 6 located outside the score line L (on the side of the ear E) and the second ends of the support members 9 and 10 on the glass located inside the score line The glass sheet is pressed between the end faces 31a. The movement for positioning the above-mentioned left and right cutting members 5 and 6 and the left and right support members 9 and 10 may be performed while the glass sheet G is performing the above-mentioned positioning in the left-right direction.

The next step is to carry out the trimming to the left and to the right, which can be carried out while the left and right cutting members 5 and 6 and the left and right support members 9 and 10 are doing the above-mentioned operations. In this step, the left and right cutting members 5, 6 are withdrawn together with the glass ears E, which are held connected by suction, to a position outside the transport path of the glass sheet G, and then , Ear E was discarded into a glass shard collection container.

The conveyor 2 moves the glass sheet G forward as edge trimming is performed over the entire outer edge of the glass sheet G. As shown in FIG.

As shown in FIG. 8, the trimming device 1 of the present invention is provided with a film removing device 38, which is located near the front end of the conveyor 2, and is intended to remove the film on the film-coated glass plate G after the trimming operation is completed. After the ear portion E is removed from the front edge of the glass plate, the above-mentioned film removal device 38 can catch the film remaining on the area corresponding to the ear portion E, so that during the further conveying process of the glass plate G, the entire film can be removed. Peel off from vitreous body B.

The structure of the thin film removal device 38 is shown in more detail in FIG. 8 . The device can perform an oscillating action in the space between adjacent conveyors 2 . It has a gripping device 39 for gripping the film and a pressure cylinder 40 on the front end of the conveyor 2 . The gripping device 39 consists of a swing arm 41 and a film chuck 42 connected to the end of the swing arm 41 . Generally, the swing arm 41 is held in a position inclined to the front end of the conveyor 2, so that a pair of gripping claws 42a mounted on the film chuck 42 can open and face the front end of the conveyor (FIG. 8A).

After the front glass lug is cut and disengaged from the glass plate G, the trim receiving rod 31 of the front support member descends, the swing arm 41 performs a swing and raises the film chuck 42 . In this way, the gripping claws 42a can grip the portion F of the film corresponding to the position of the ear E hanging from the front edge of the glass sheet G. As shown in FIG. As shown in FIG. 8B , the gripping film swing arm 41 can swing downward and backward, and pull the film synchronously with the glass plate G conveyance. However, the rod 40a of the above-mentioned pressure cylinder 40 is extended, and the film portion F is squeezed between a roller 40b located on the end of the piston rod and the conveyor pulley 2a. In this case, the continued conveyance of the glass G will peel off the entire film from the surface of the glass sheet G.

Figure 9 illustrates another method of using the cutting mechanism of the present invention. In particular, the figure shows the trimming of an uncoated glass sheet G. When the ears E have to be cut from the glass plate G which is not covered with the film, the cut ears E will not be attached to the film and the ears E will fall down. According to the above aspect, the glass receiving portion 31b of the trimming receiving rod 31 in the respective supporting members 7, 8, 9 and 10 is provided with the supporting block 43. The surfaces of these support blocks 43 are covered with buffer plates 44 which may be made of rubber or soft synthetic resin. When the cutting member 3 is lowered, the pressure element 36 will push the ear E of the glass sheet G downwards. In this way, the glass plate G without the film is cut along the score line, and the separated ears E are placed on the buffer plate 44 of the support block 43 in a horizontal state. Then, the cutting rod 33 descends and stops in a position close to the ear E. As shown in FIG. This action sets the stroke of the servo cylinder 12 . Next, the second suction device is activated and connected to the ear E as shown in the figure.

Then, the cutting rod 33 of the cutting member 4 is raised to a home position along with the connected ear E by the servo cylinder 12 . In the same manner as described above, the rodless cylinder 13 (Fig. 2 to Fig. 4) is activated, whereby the cutting member 3 pushes the glass sheet G into a position outside the conveying path of the glass sheet G, and the ear part E is discarded to the glass sheet G. debris collection container.

The edge trimming device 1 is provided with a front and rear cutting mechanism and a left and right cutting mechanism. However, the present invention is not limited to this configuration, for example, the device may have only front and rear cutting mechanisms, or only left and right cutting members. In these examples, a rotatable suction device capable of changing the position of the glass plate by its 90 degree rotation may be mounted on the upper side of the trimming device. Alternatively, a turntable may be mounted on the conveyor so that after a pair of opposing cutting devices have trimmed the glass sheet on opposite sides, the other pair of opposing sides of the glass sheet may be rotated 90° by rotating the sheet. to trim the edges.

The invention makes it possible to process the entire perimeter of the glass pane, ie the edge allowance can be removed by trimming and these removed glass ears can be discarded. In the device of the present invention, the removed glass ear does not fall on the conveying path of the glass sheet and does not break.

Claims (11)

1. A glass sheet cutting mechanism comprising a cutting member and a support member, wherein cutting is performed by applying pressure to the glass sheet on both sides of the score line in mutually opposite directions, the cutting mechanism, It is characterized by: the cutting member has a pressure element contacting an ear of the glass sheet in linear contact parallel to the score line, and the pressure element applies pressure vertically downward to the ear; The support member has: a glass support member having an edge, the glass support member supporting the glass sheet such that the score line is parallel to the edge and the ear portion of the glass sheet extends from the edge; and glass receiving means comprising a vertical surface intersecting said glass support member at said edge and a horizontal surface intersecting said vertical surface and extending under said ear; The cutting member and the support member are vertically relatively drivable in an up and down direction; and The cutting member has a glass suction device that holds and removes the ear that is cut and temporarily received by the glass receiving device. 2. The glass plate cutting mechanism according to claim 1, wherein said glass suction device comprises a first glass suction device formed on said vertical surface of said glass receiving device a first end surface of the opposite cutting member. 3. The glass plate cutting mechanism according to claim 2, wherein the first glass adsorption device comprises a plurality of adsorption holes, and these adsorption holes are adsorbed on the ear part under the effect of negative pressure. 4. The glass sheet cutting mechanism of claim 1, wherein at least one of the cutting member or the support member is movable toward each other in opposite directions or moved away in opposite directions. 5. The glass sheet cutting mechanism of claim 1, wherein the pressure member is in the form of a horizontal surface, and wherein the glass suction means includes a second glass suction means formed on the pressure member to face The horizontal surface of the glass receiver. 6. The glass plate cutting mechanism according to claim 5, wherein said second suction means is in the form of a plurality of elongated suction holes arranged longitudinally, said suction holes being formed on the side facing said glass receiving means on the surface of the pressure element, and wherein the adsorption holes can be adsorbed on the glass plate under the effect of negative pressure. 7. The glass sheet cutting mechanism of claim 1, wherein the cutting member is reciprocatable in a longitudinal direction thereof. 8. The glass plate cutting mechanism according to claim 1, wherein a third glass absorbing member for absorbing the glass plate is formed on the supporting member. 9. A glass plate edge trimming device, the device comprising: a conveying device for conveying said glass sheet in a horizontal direction; A glass sheet cutting mechanism, said glass sheet cutting mechanism being any one of the preceding claims 1 to 8, the cutting mechanism being located near each of the front and rear ends of said conveyor; a leading edge detection device located near the front end of the conveyor for detecting the leading edge of the glass sheet; and A rear edge detection device located near the rear end of the conveying device for detecting the rear edge of the glass sheet. 10. The glass plate trimming device according to claim 9, characterized in that, the trimming device further comprises: a glass sheet cutting mechanism, said glass sheet cutting device being any one of the preceding claims 1 to 8, said glass sheet cutting device being located near each end of said conveyor; and means for positioning said glass sheet widthwise at each side of said conveying means; Wherein, the device for positioning the glass plate in the width direction can apply pressure to both edges of the glass plate in a direction perpendicular to the conveying direction. 11. A glass plate edge trimming device, the device comprising: a conveying device for conveying said glass sheets in a horizontal direction; a glass sheet cutting mechanism, said glass sheet cutting mechanism being any one of the above claims 1 to 8, said cutting mechanism being located near each end of said conveyor; and a means for positioning said glass sheet widthwise at each side of said conveying means; Wherein, the device for positioning the glass plate in the width direction can apply pressure to both edges of the glass plate in a direction perpendicular to the conveying direction.

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