JPH0311617B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a novel method in which an H-shaped inserted member is formed by bending two forming materials into a U-shape and abutting both forming materials back to back. It is about the method.

The H-shaped inserted member, which is made by bending two sheets of drawing material into a U-shape, can be inserted into a packaging box and used for partitioning or cushioning of packaged items, or for other purposes. It is suitably used for applications such as exterior partitioning materials when packaging in small portions such as collective packaging boxes. This inserted member 14 has a shape as shown in FIG. 8c, for example. That is, as shown in FIG. 8a, a rectangular defining material 10 (this is made of a sheet-like plate made of cardboard, paperboard, plastic, or other foamed resin material) is provided with folded lines 1 at predetermined parallel intervals.
2 and 12 are engraved, and the drawing material 1 is formed into a U-shape by bending at each fold line 12.
The H-shaped inserted member 14 is formed by bringing two pieces of 0 into contact with each other back to back. In the method for forming an H-shaped inserted member according to the prior art, the forming members 10, 10, which are made up of the two forming members 10 and 10, are placed in an attitude such that the broken line carved surfaces thereof are oriented in opposite directions. Two hoppers are provided for vertically stacking a large number of forming materials 10, and the forming material 10 is alternately supplied from each hopper. As described above, since two hoppers are normally required, fully automatic box making equipment such as corrugated cardboard casers and cartoning machines take up a large amount of space for the hoppers, increasing manufacturing costs and complicating the equipment. There were drawbacks such as complicated maintenance and inspection.

The present invention was proposed in order to solve the above-mentioned drawbacks inherent in the conventional method of forming an H-shaped inserted member. The purpose is to make effective use of space by reducing the space to about half of the conventional size, and to significantly reduce manufacturing costs and facilitate maintenance and inspection.

In order to achieve the above object, the method for forming an H-shaped inserted member according to the present invention includes forming a defining material in which two fold lines are carved at a predetermined parallel interval so that the fold lines are oriented in the same direction. A large number of drawing materials are stacked together, and the drawing materials are sequentially fed from the drawing material accumulation area to a predetermined bending position, and at the bending position, the first drawing material is reversed by 180 degrees, and the second drawing material is The present invention is characterized in that the initial feeding posture is maintained without being reversed, and then each drawing material is bent in a desired direction along the folding line and brought into contact with each other back to back.

The method according to the invention will now be described in detail with reference to the accompanying drawings, in relation to a device suitable for carrying out the method. FIG. 1 is a front view showing a schematic structure of an apparatus for carrying out the method according to the present invention, and FIG. 2 is a left side view of FIG. The left side of the reversing guide 16 shown in FIG. That is, the second
Although only a half part is shown in the figure, in reality, the reversing guide 1 is
6 and the fixed guide 18 are arranged symmetrically so as to form a pair with a predetermined distance apart in the lateral direction.

In FIG. 1, reference numeral 20 indicates a hopper. This hopper 20 is a horizontally arranged frame 2.
2, and the bottom of the hopper 20 (frame body 22
A belt conveyor 24 for conveying the drawing material is disposed horizontally (above the image forming apparatus). This belt conveyor 24 is wound around a group of pulleys 26 and is driven by a motor 28 and a drive belt 30 connected thereto. Said hopper 2
A large number of the forming materials 10 are accumulated and stored vertically on the belt conveyor 24 at 0, and are pressed by the conveyor 24 and the pressing rod 32 and conveyed toward the kicker 34 disposed near the opening at the tip of the hopper 20. (towards the left in Figure 1).

As shown in FIGS. 1 and 2, the kicker 34 is composed of a pair of vertical plates 34a, 34a. A pneumatic cylinder 38 is erected at the center of the horizontal span 36 disposed above the opening of the hopper 20, and the pair of vertical plates 34a, 34a is connected and fixed so that it can be moved up and down by a predetermined stroke by the bias of the cylinder 38. A pair of guide rods 4 are installed on both sides of the lifting path of the kicker 34.
2 and 42 are erected facing each other, and are slidably inserted through the horizontal member 35 to guide the kicker 34. When the kicker 34 is in the raised position, the lower end of the kicker 34 is in the hopper 2 position.
The upper end edge of a sheet of definition material 10 located at the forefront of the opening of 0 is captured, and the definition material 10 is sent downward as the kicker 34 descends.

Below the drawing material delivery position at the opening of the hopper 20, as shown in FIG. Fixed position guides 46, 46 are provided. The reversing guide 16 and the fixed guide 18 can horizontally reciprocate below the fixed position guides 46, 46. That is, the first
As shown in Fig. 2, the lower horizontal span 4
Vertical frame 48, erected and fixed on both sides of 4
A pair of guide rails 50, 5 are provided at each lower end of the
0 is arranged and fixed horizontally, and a trolley 52 is suspended and supported by both guide rails 50, 50 so as to be freely movable.

This trolley 52 consists of a pair of parallel support plates 56, 56 which are spaced apart from each other by a predetermined distance via a bridge member 54.
and a group of wheels 58 rotatably provided on the support plates 56, 56, respectively. As clearly shown in FIG. 6a, the guide rail 50 is held by a group of wheels 58 (in the illustrated embodiment, three wheels per support plate 56) from above and below, so that the bogie 52 is suspended and supported so that it can run freely, and is further driven and run by a pneumatic cylinder 60 disposed on the lower surface of the horizontal frame 22, as shown in FIG. That is, the pneumatic cylinder 60
The free end of the piston rod 62 is fixed to the center of the bridge member 54, and by biasing the cylinder 60 in either the forward or reverse direction,
The trolley 52 can be driven to run horizontally along the guide rails 50, 50.

As shown in FIGS. 1, 6, and especially FIG. 9, a pair of reversing guides 16 are provided at the front (on the left side in FIG. , 16 are pivoted so that they can rotate in reverse and forward direction synchronously through a rotation angle of 180°. For example, if we observe only one reversing guide 16, as clearly shown in FIG. 2 and especially FIG. 66, 66 are arranged, and a hollow rotating shaft 68 is rotatably inserted and supported in the bearings 66, 66. The reversing guide 1 is connected to one end of the hollow rotating shaft 68 facing inside the truck via a mounting member 70 and a plurality of bolts 72.
6 is fixed. Further, a pinion 74 of a predetermined diameter is fixed coaxially to the front mounting member 70, and this pinion 74 is connected to support columns 76, 7 that are perpendicular to the lower side of the guide rail 50 as shown in FIG.
It is designed to mesh with a rack 78 which is horizontally fixed through a rack 6. Therefore, when the truck 52 is driven to travel while being suspended and supported by the guide rails 50, 50 under the biasing action of the cylinder 60, the pinion 74 that meshes with the rack 78 on the fixed side is driven to rotate. It will be appreciated that the reversing guide 16 may be rotated together with the hollow rotating shaft 68. In this case, the rack 78 and pinion 74 move from the travel start position to the travel end position of the reversing guide 16 located directly below the fixed position guide 46, as shown in FIGS. Said reversing guide 1
The number of teeth is set so that 6 can be rotated 180 degrees counterclockwise.

The form of the reversing guide 16 is as shown in FIG. 9, and its planar state is shown in FIG. That is, each reversing guide 16 includes a U-shaped guide groove 80 extending in the vertical direction, and a converging portion 82 extending from the guide groove 80 and converging inwardly at an angle.
and a stopper piece 84 bent at the vertical edge of the converging portion 82, and a pair of reversing guides 16 are arranged at a predetermined distance apart in the lateral direction.

Further, behind the reversing guide 16 (on the right side in FIG. 1), fixed guides 18, 18 are attached to support plates 56, 56 of a truck 82, respectively, via a group of bolts 86. This individual fixed guide 18
As shown in FIGS. 7 and 9, the fixed guide 18 is composed of a U-shaped guide groove 88 and a converging portion 90 that is inclined inwardly toward the U-shaped guide groove 88. They are arranged in pairs.

Both ends of the drawing material 10 fed and drawn out by the action of the kicker 34 are guided and inserted into the opposing guide grooves 80, 80 of the reversing guides 16, 16. Similarly, the fixed guides 18, 18 have opposing guide grooves 88, 8.
8, both ends of the drawing material 10 fed thereto are guided and inserted.

Reversing guides 16, 16 and fixed guide 18,
18 are arranged on the trolley 52 in the positional relationship shown in FIG.
0, 80 and guide grooves 88, 88 are configured to be able to run directly under the fixed position guide 46 within a predetermined stroke. Also, the reversing guides 16, 16
As described above, the fixed guide 18 is turned 180° during its travel, but in order to allow the turning without interfering with the adjacent fixed guide 18, the converging portion 90 of the fixed guide 18 is formed as shown in FIG. 6b. It is notched in an arc shape (indicated by reference numeral 92).

Further, as shown in FIG. 1, contact plates 94, 94 for folding the forming material 10 are located at the front and rear of the travel area of the cart 52, and the piston rods 9 of pneumatic cylinders 96, 96 are horizontally arranged at predetermined positions, respectively.
8 is fixed at the tip. The said contact plate 94 is a second
As shown in the figure, the piston rod 98 is fixed to the center of an intermediate member 100 which has an H-shape as a whole and connects both contact plates 94, 94. Further, the intermediate member 100 includes a pair of guide rods 102, 10
2, it is held horizontally to prevent it from rotating and to allow smooth horizontal movement.

As shown in FIG. 7, each end of the drawing material 10 is inserted and accommodated in the opposing guide grooves 80, 80 of the reversing guides 16, 16. As shown in FIG. 4, a sufficient groove width is provided to allow smooth insertion of the demarcation material 10. For this reason, the reversing guides 16, 16
If it is reversed, there is a concern that the forming material 10 may partially slip out of the guide grooves 80, 80 during the reversal, which may impede smooth reversal.
In order to prevent this, a small pneumatic cylinder 104 is fixed to the end of the hollow rotating shaft 68, as shown in FIGS. 3 to 5.
A pair of clamping members 10 constituting a clamper.
6 and 106 are driven to clamp and hold the end of the defining material 10 inserted into the groove 80. This clamp mechanism detects with an appropriate sensor that the forming material 10 is inserted into the groove 80 of the reversing guide 16 which is in the normal position in FIG. It is becoming more energizing. The clamping operation continues at least until the reversing guide 16 completes its reversing, as shown in FIG. 6c.

In addition, in FIGS. 1 and 2, the reference numeral 108
108 shows a push-out member disposed so as to vertically move up and down into the running path of the truck 52. The H-shaped inserted member 14 formed by the method according to the invention is pushed out onto a conveyor (not shown) below.

Next, the operation and effect when carrying out the method for forming an H-shaped inserted member according to the present invention using a suitable apparatus according to an embodiment configured as described above will be explained. In the hopper 20 shown in FIG.
A large number of drawing materials 10 shown in FIGS. 8a and 8b are stored with their fold lines 12 pointing backward (to the right in FIG. 1), and the drawing materials 10 are conveyed forward by the action of the belt conveyor 24. It's becoming like that. At this time, the reversing guides 16, 16 at the start of one cycle for carrying out the method according to the present invention
The positional relationship between the fixed guides 18 and 18 is as follows.
The state is shown in Figure a. That is, the pair of U-shaped guide grooves 80, 80 of the reversing guides 16, 16 facing each other are located vertically below the fixed position guide 46, and the piston rod 40 of the pneumatic cylinder 38 is inserted into the cylinder as far as possible. It's going backwards. Note that the cylinders 96, 96 that bias the contact plates 94, 94 are both in a standby state and inactive. In this state, when the picker 34 shown in FIG. 1 operates and feeds out the drawing material 10 downward one by one from the hopper 20, the drawing material 10 passes through the fixed position guides 46, 46, and then A pair of reversing guides 16, 1 located below
6 into the guide grooves 80, 80. At this time, the fold line 12 of the dividing material 10 is oriented to the right in FIGS. 1 and 6.

Next, the pneumatic cylinder 60 is energized to release the rod 6.
2, the trolley 52 will move along the guide rail 5.
The vehicle starts traveling in the direction of the arrow while suspended at 0.50. At this time, since the pinion 74 of each reversing guide 16 is engaged with the rack 78 on the fixed side, as shown in FIG. 6b, the reversing guide 16,
16 rotates counterclockwise while holding the drawing material 10, and finally stops in a position reversed by 180 degrees from the initial starting position, as shown in FIG. 6c. At this time, the fold line 12 of the dividing material 10 inserted into the reversing guide 16 is oriented to the left in the drawings, as shown in FIGS. 6 and 7. Note that from the start to the end of the reversing of the reversing guides 16, 16, the clamp mechanism operates as described above to stably clamp the forming material 10 in the guide grooves 80, 80. Therefore, during the reversal process, there is no risk that the demarcation material 10 will partially slip out of the grooves 80, 80, interfering with the smooth reversal operation.

In this way, the reversing guide 16 shown in FIG. 6c,
When the carriage 16 is turned 180°, the carriage 52 finishes traveling a predetermined distance, and the fixed guide 18 is positioned directly below the fixed position guide 46 at this time. The kicker 34 then operates at this timing. That is,
The next forming material 10 is fed out from the hopper 20, passed through the fixed position guides 46, 46, and then dropped and fed into the guide grooves 88, 88 of the fixed guides 18, 18. At this time, the surface of the drawing material 10 on which the broken lines 12, 12 are engraved is oriented to the right in the drawings, as shown in FIGS. 6c and 7a.

Then, in this position shown in FIG.
6, 96 in close proximity to each other under the biasing action of the reversing guides 16, 1, as shown in FIGS. 6 and 7b.
6 and the fixed guides 18, 18, respectively, are pressed perpendicularly to the surfaces thereof. As a result, each drawing material 10 is
A pressing force is applied to the corresponding converging parts 82 and 90 inward, respectively, and the forming material 1 is bent at the bending lines 12 and 12.
0 has not yet been bent into a U-shape). Also, each stopper piece 84, 84 of the reversing guide 16, 16
The two forming materials 10, 10 are brought into contact with each other back to back. Thereafter, pneumatic cylinder 110, shown in FIGS. 1 and 2, is actuated to vertically lower pusher member 108. This extrusion member 1
08 is the two drawing materials 10, 10 shown in FIG. 7b.
By pressing the back-to-back portions of the H-shaped inserted member thus formed, the H-shaped inserted member is sent out toward a lower conveyor (not shown). In this case, at least during extrusion by the extrusion member 108, the pneumatic cylinders 96, 96 are in an energized state, and the pair of abutting plates 94, 94 are
It is assumed that the sheets of definition materials 10, 10 are lightly pressed together.

As explained in detail above, according to the method of the present invention, the marking materials provided with fold lines engraved in the same direction are fed one by one, the first drawing material is reversed after being fed, and the second marking material is fed one by one. The forming material is kept in the same feeding position without being reversed, and both forming materials are bent in a U-shape along the above-mentioned fold line and placed back to back to form an H-shaped inserted member, which is different from the conventional technique. Since there is no need to provide two sets of hoppers for storing the forming material as in such devices, it is possible to significantly save installation space, reduce manufacturing costs, and facilitate maintenance.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a schematic structure of an apparatus for carrying out the method according to the present invention, and FIG. 2 is a left side view of FIG. The right side shows the right side of the fixed guide, Figure 3 is an enlarged cross-sectional view of the main part of the clamp mechanism, Figure 4 is a front view of the clamping material clamped, and Figure 5 is the clamp. FIG. 6 is a plan view of the mechanism, FIG. 6 is a schematic diagram of the process of implementing the method according to the present invention, and FIG. 7 is an explanatory diagram showing a state in which the drawing materials housed in two guides are bent and brought into contact back to back. , FIG. 8 is a schematic explanatory diagram of the forming material, and FIG. 9 is a perspective view schematically showing the main components of an apparatus for carrying out the method according to the present invention.

Claims (1)

[Scope of Claims] 1. A large number of drawing materials each having two folded lines carved at a predetermined parallel interval are stacked so that the folded lines are oriented in the same direction, and the drawing material is removed from the drawing material accumulation point. are sequentially fed toward a predetermined bending position, and at this bending position, the first forming material is reversed by 180 degrees, and the second forming material is held in its initial feeding position without being reversed. A method for forming an H-shaped inserted member, characterized in that the forming material is bent in a predetermined direction along the bending line and brought into contact with each other back to back.