JP3464961B2 - Cutting and separating equipment for molded synthetic resin sheets - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cutting a synthetic resin sheet formed by molding a plurality of trays and the like along the outer periphery of a molded product and separating the cut molded products.

[0002]

2. Description of the Related Art Food trays and the like are manufactured by the following steps. Both sides of the thermoplastic synthetic resin sheet are heated by heaters and then molded by a mold. The molded synthetic resin sheet thus molded is formed by arranging a number of molded products such as trays vertically and horizontally. The molded synthetic resin sheet is cut into a predetermined length. The cut molded synthetic resin sheet is molded into a large number of trays and the like in the vertical and horizontal directions. The molded synthetic resin sheet that has been molded and cut is supplied to a cutting machine.
The cutting machine punches and cuts a molded synthetic resin sheet on the outer periphery of a molded product such as a molded tray. The cutting machine cuts the outer periphery of each molded product with a Thomson blade. The cut synthetic resin sheets are sent in a stacked state onto the workbench 40 shown in FIG. The molded synthetic resin sheet 1 sent to the workbench 40 is manually separated from the molded synthetic resin sheet 1 by the operator.

The present inventor has developed an apparatus shown in FIG. 2 in order to efficiently cut a molded synthetic resin sheet (JP-A-9-66562). However, with respect to the molded synthetic resin sheet 1 cut by this device, it is also necessary for the operator to manually separate the molded product from the molded synthetic resin sheet 1.

As described above, in the apparatus for manufacturing a molded product such as a tray, it takes a lot of time to separate the cut molded product from the molded synthetic resin sheet and stack the separated molded product. As shown in FIG. 1, the conventional apparatus mounts the cut synthetic resin sheet 1 on a workbench 40 having a groove 41 in the front to form a molded product S.
Was pushed down into the groove 41, separated from the molded synthetic resin sheet 1, and taken out.

[0005]

As described above, the apparatus for supplying the cut synthetic resin sheet on the work table and allowing the worker to separate the molded product separates the molded product from the synthetic resin sheet. There was a drawback that it was extremely time-consuming. Further, there is a drawback that it is difficult to accurately count the separated molded products and stack and discharge them so as not to shift the position.

The present inventor has developed an apparatus shown in FIGS. 3 and 4 for the purpose of eliminating this drawback (Japanese Patent Application No. 10-
337872). This apparatus is formed by laminating a plurality of molded synthetic resin sheets 1 formed by molding a plurality of molded products S into a plurality of sheets,
A Thomson blade 42 cuts along the outer periphery of the molded product S. The cutting / separating device includes a carrier 43 for transferring a plurality of molded synthetic resin sheets 1 supplied in a stacked state in a horizontal posture, and a plurality of molded synthetic resin sheets transferred to a cutting position by the carrier 43. 1. A cutting machine 44 for punching 1 along the molded product S, and a molded product S cut by the cutting machine 44.
After the transfer, the opening / closing shutter 45 for opening the drop gap 46 and dropping it downwardly, and the molded product S cut by the cutting machine 44 are separated from the molded synthetic resin sheet 1 to drop the drop gap 46.
Pusher 47 to drop from and open / close shutter 45
When the predetermined number of molded products S are stacked, the molded products S provided from the opening / closing shutter 45 which is disposed below the open gap 46 is stacked, and the supplied molded products S are stacked. And a discharge conveyor 48 for discharging in this state.

The cutting machine 3 shown in the figure cuts the molded product S of the molded synthetic resin sheet 1 into one horizontal row with the Thomson blade 42 and the backing plate 49, and opens and closes the molded product S cut into one horizontal row. The sheets are stacked on the discharge conveyor 48 from the shutter 45 and discharged.

The cutting / separating device having the above structure cuts a plurality of laminated molded synthetic resin sheets 1 along the molded product S in the following manner, and stacks and discharges a predetermined number of sheets. A plurality of molded products S are molded vertically and horizontally, and a predetermined number of molded synthetic resin sheets 1 cut into a predetermined length are stacked and supplied. Both sides of the supplied and molded synthetic resin sheet 1 are clamped and held by the clamp device 50 of the carrier 43, and transferred to the cutting position. The molded synthetic resin sheet 1 transferred to the cutting position is punched along the molded product S by the cutting machine 44. The cutter 44 is a Thomson blade 4
The molded synthetic resin sheet 1 is cut by 2 and the backing plate 49.
At this time, the punched molded product S is punched in a state of being completely separated from the molded synthetic resin sheet 1. The cutting machine 44 simultaneously cuts the molded articles S of the molded synthetic resin sheet 1 arranged in a horizontal row. The cut molded product S is transferred to the extraction position. The cut molded product S is transferred by the carrier 43 through the frame of the molded synthetic resin sheet 1 obtained by punching out the molded product S. When the molded product S is transferred to the take-out position, the opening / closing shutter 45 is opened and the molded product S is dropped from the drop gap 46. Since the discharge conveyor 48 is disposed below the drop gap 46, the molded articles S that fall are accumulated on the discharge conveyor 48. Further, the molded product S is pushed from above by the pusher 47 to surely drop the molded product S from the drop gap 46. Molded product S
Are dropped in a horizontal posture right below from the drop gap 46 of the opening / closing shutter 45, and are stacked on the discharge conveyor 48 without displacement. The discharge conveyor 48 is initially in the raised position, and accumulates the molded products S dropped on the upper surface. As the molded products S are stacked, the discharge conveyor 48 descends. Repeat the steps from to discharge conveyor 4
When a predetermined number of molded products S are stacked on the sheet 8, the discharge conveyor 48 is lowered to a predetermined position, and then the discharge conveyor 48 is driven to transfer to the next step.

This apparatus can separate the molded article by cutting the molded synthetic resin sheet more efficiently than the apparatus shown in FIG. However, the apparatus of this structure has a drawback that it cannot be manufactured at low cost because the carrier structure is complicated and the whole structure is complicated because a large number of molded synthetic resin sheets are stacked and transferred by a carrier. Further, in the apparatus having this structure, the mechanism for laminating and cutting a large number of molded synthetic resin sheets also complicates the structure and increases the manufacturing cost.

An apparatus for cutting one molded synthetic resin sheet can reduce the manufacturing cost. This is because the transfer mechanism of the molded synthetic resin sheet can be simplified, the mechanism for separating the molded product from the cut synthetic resin sheet can also be simplified, and the separated molded products can be easily laminated.
However, it is important for a device that cuts one molded synthetic resin sheet to cut efficiently and in a short time to shorten the tact time. This is because the number of sheets processed per unit time is smaller than that in an apparatus that stacks and cuts a large number of molded synthetic resin sheets. Therefore, it is particularly important how an apparatus for cutting one molded synthetic resin sheet can cut in a short time.

The present inventor, for the purpose of realizing this, transfers one sheet of molded synthetic resin sheet cut by a cutting machine from the cutting machine to a take-out position, and at the take-out position, a molded product and scrap are removed. We have developed a device for separating into two parts. However, this device carries the molded synthetic resin sheet into the cutting machine, transfers the molded synthetic resin sheet cut by the cutting machine to the unloading position, and then supplies the next molded synthetic resin sheet to the cutting machine. Therefore, there is a drawback that the tact time cannot be shortened.

The present invention was developed with the object of further solving this drawback, and an important object of the present invention is to shorten the tact time and efficiently while reducing the manufacturing cost with a simple mechanism. An object of the present invention is to provide a device for cutting and separating a molded synthetic resin sheet, which is capable of cutting a molded synthetic resin sheet to separate molded products.

[0013]

A device for cutting and molding a molded synthetic resin sheet according to the present invention cuts a molded synthetic resin sheet 1 formed by molding a plurality of molded products S along the molded products S, and cuts the product. Molded product S and scrap R from which molded product S has been removed
And separate. Further, the cutting / separating device of the present invention has all the following configurations. (A) The cutting / separating device is a single molded synthetic resin sheet 1
A carry-in table 2 for horizontally transferring from the supply position to the cutting position, and a cutting machine 3 for punching the molded synthetic resin sheet 1 transferred to the cutting position by the carry-in table 2 along the outer periphery of the molded product S, A catcher 4 that stops the molded synthetic resin sheet 1 at the cutting position when the loading table 2 is retracted from the cutting position to the supply position. (B) The cutting machine 3 includes a backing plate 9 and a Thomson blade 5 that vertically cut the molded synthetic resin sheet 1 supplied to the cutting position. (C) The backing plate 9 is the molded synthetic resin sheet 1 at the cutting position.
And the Thomson blade 5 is above the molded synthetic resin sheet 1 and is pressed onto the molded synthetic resin sheet 1 to cut the molded synthetic resin sheet 1. (D) The cutting machine 3 presses the Thomson blade 5 against the molded synthetic resin sheet 1 and cuts the molded synthetic resin sheet 1 with the Thomson blade 5, and the upper pressing base 16 is vertically moved in a horizontal posture. An up-and-down moving mechanism 18 for moving to. ( E ) The cutting machine 3 cuts the molded synthetic resin sheet 1
A holding and discharging unit 17 is provided for transferring the molded product S separated from the cutting position to the discharging position. ( F ) The cutting machine 3 includes a discharging and moving mechanism 19 that moves the holding and discharging section 17 that holds the molded product S separated from the molded synthetic resin sheet 1 from the cutting position to the discharging position. ( G ) The carry-in table 2 transfers the molded synthetic resin sheet 1 from the supply position to the cutting position, and the upper pressing table 16 lowers the Thomson blade 5 onto the molded synthetic resin sheet 1, and the Thomson blade 5 and the contact plate 9 The molded synthetic resin sheet 1 is cut with and
In a state where 6 is raised, the cut and separated molded product S is held by the holding and discharging section 17, and the holding and discharging section 17 transfers the molded product S from the cutting position to the discharging position.
The scrap R from which the molded product S has been removed is configured to be removed from the supply position by the molded synthetic resin sheet 1 and the carry-in base 2 that are carried in next.

In the cutting / separating device of the present invention, the backing plate 9 can be arranged on the upper surface of the carry-in table 2. This cutting / separating device lowers the Mothon blade 5 of the upper pressing table 16 and cuts the molded synthetic resin sheet 1 by the Thomson blade 5 and the backing plate 9 of the carry-in table 2.

Further, in the cutting and separating apparatus of the present invention, the Thomson blade 5 is arranged below the molded synthetic resin sheet 1 at the cutting position, and the backing plate 9 is positioned above the molded synthetic resin sheet 1.
The molded synthetic resin sheet 1 can also be cut by pressing it onto the molded synthetic resin sheet 1. In this cutting / separating device, the loading table 2 transfers the molded synthetic resin sheet 1 from the supply position to the cutting position, and the upper pressing table 16 lowers the backing plate 9 onto the molded synthetic resin sheet 1 so that the Thomson blade 5 and The molded synthetic resin sheet 1 is cut with the backing plate 9. In this cutting / separating device, the Thomson blade 5 can be arranged on the upper surface of the carry-in table 2.

Further, in the cutting / separating device of the present invention, preferably, the catcher has guide rails 10 on which both sides of the molded synthetic resin sheet 1 are placed and moved, and above the guide rails 10, the molded synthetic resin sheet is provided. And a sandwiching piece 11 for sandwiching the side edge of 1 from above. The catcher 4 stops the molded synthetic resin sheet 1 by sandwiching the side edge of the molded synthetic resin sheet 1 with the sandwiching piece 11 and the guide rail 10 when the loading table 2 is retracted from the cutting position to the supply position. Let

Further, in the cutting / separating apparatus of the present invention, preferably, the holding / discharging portion 17 of the upper press base 16 is provided with a closed suction box 20 for sucking and holding the molded product S. The closed suction box 20 has an air suction hole on its lower surface for sucking air and sandwiching the molded product S.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a cutting / separating device for embodying the technical idea of the present invention, and the present invention does not specify the cutting / separating device as follows.

Further, in this specification, in order to facilitate understanding of the claims, the numbers corresponding to the members shown in the embodiment are referred to as "claims column" and "to solve the problem." It is added to the members shown in "Means column". However, the members shown in the claims are not limited to the members of the embodiment.

As shown in FIG. 5, the cutting apparatus for molded synthetic resin sheets of the present invention is a molded synthetic resin sheet 1 formed by molding a plurality of molded products S, and the synthetic resin sheet 1 to be supplied. Is cut along the outer periphery of the molded product S with a Thomson blade. The molded synthetic resin sheet 1 is obtained by forming molded products S such as a plurality of trays on the thermoplastic synthetic resin sheet 1 by a molding machine (not shown) by arranging them vertically and horizontally and then cutting them into a rectangular shape of a predetermined length. Is. The synthetic resin sheet 1 is molded with a mold by heating both sides of the thermoplastic synthetic resin sheet 1 with a heater. The synthetic resin sheet 1 cut into a predetermined length is, for example, by a supply conveyor (not shown) or manually,
It is supplied from the molding machine to the supply position of the cutting and separating device. The molded synthetic resin sheets are supplied one by one to the supply position of the cutting and separating apparatus.

The cutting / separating device forms a molded synthetic resin sheet 1 that transfers one molded synthetic resin sheet 1 from the supply position to the cutting position, and the molded synthetic resin sheet 1 that has been transferred to the cutting position by this loading table 2 into a molded product. A cutting machine 3 that punches and cuts the outer periphery of S and transfers the molded product S from the cut molded synthetic resin sheet 1 to a discharge position, and when the carry-in table 2 moves backward from the cutting position to the supply position, the cutting position is set to the cutting position. And a catcher 4 for stopping the transferred molded synthetic resin sheet 1 at the cutting position.

The loading table 2 transfers the molded synthetic resin sheets 1 supplied one by one in a horizontal posture from the supply position to the cutting position. The carry-in table 2 is one molded synthetic resin sheet 1
Is transferred from the supply position to the cutting position. The carry-in table 2 is connected to the frame in a horizontal posture so that it can reciprocate between a supply position and a cutting position. Further, the loading table 2 is reciprocated by the reciprocating mechanism 6. The reciprocating mechanism 6 of the illustrated apparatus is a timing belt 7 connected to the lower surface of the loading table 2 and a motor 8 for driving the timing belt. However, a cylinder can also be used for the reciprocating mechanism. In the illustrated reciprocating mechanism 6, the motor 8 drives the timing belt 7 to reciprocate the loading table 2. The motor 8 is an air motor. The air motor drives the timing belt to reciprocate the loading table 2 between the supply position and the cutting position.

The loading table 2 is provided with a backing plate 9 on its upper surface. The carry-in table 2 provided with the backing plate 9 cuts the molded synthetic resin sheet 1 to separate the molded product S from the scrap R, and then retreats from the cutting position to the supply position. The loading table 2 is arranged at the cutting position, and the synthetic resin sheet 1 is molded with the Thomson blade 5.
Is to cut.

However, in the cutting / separating device of the present invention, it is not always necessary to provide a backing plate on the carry-in table. The backing plate can also be fixed to the cutting machine. This cutting / separating device carries a single molded synthetic resin sheet onto a backing plate by means of a carry-in table. After that, the carry-in table is retracted from the cutting position to the supply position, and then the Thomson blade is lowered to cut the molded synthetic resin sheet. The carry-in table, which is not provided with a backing plate, moves above the backing plate and supplies the molded synthetic resin sheet to the cutting position on the backing plate.

In the cutting and separating apparatus shown in the figure, a backing plate 9 is arranged below the molded synthetic resin sheet 1 and a Thomson blade 5 is arranged above it. However, in the cutting and separating apparatus, contrary to this structure, the Thomson blade may be arranged below the molded synthetic resin sheet and the patch plate may be arranged above. In this cutting / separating device, a Thomson blade is provided on the carry-in table, or a Thomson blade is arranged below the cutting position of the cutting machine to fix the backing plate to the lower surface of the upper press table.

The carry-in table 2 reciprocates between the supply position and the cutting position, transfers the uncut molded synthetic resin sheet 1 from the supply position to the cutting position, and leaves the molded synthetic resin sheet 1 at the cutting position for cutting. Retract from position to supply position. Carry-in stand 2
The catcher 4 is provided so that the molded synthetic resin sheet 1 does not move together when the sheet moves backward. The catcher 4 sandwiches both sides of the molded synthetic resin sheet 1 and holds the molded synthetic resin sheet 1 at the cutting position when the carry-in table 2 retracts.

The catcher 4 is shown in the plan view of FIG. 6 and the sectional view of FIG. The catcher 4 shown in these figures is a guide rail 1 on which both sides of the molded synthetic resin sheet 1 are placed and moved.
0, a sandwiching piece 11 that is above the guide rail 10 and sandwiches the side edge of the molded synthetic resin sheet 1 from above, and a drive mechanism 12 that moves the sandwiching piece 11 to start an arc. This catcher 4 has a guide rail 10 when the carrying table 2 carries the molded synthetic resin sheet 1 from the feeding position to the cutting position, with the sandwiching piece 11 in the non-sandwiching position.
Wait at a position away from the top surface of the. When the carry-in table 2 is retracted, both side edges of the molded synthetic resin sheet 1 are clamped by the sandwiching pieces 11 and the guide rails 10 so that the molded synthetic resin sheet 1 does not move. In this state, when the loading table 2 is retracted, the molded synthetic resin sheet 1 remains at the cutting position,
Only the loading table 2 is retracted from the cutting position to the supply position.

The guide rail 10 is located at a position where both side edges of the molded synthetic resin sheet 1 placed on the carry-in table 2 can be placed, that is, approaches the lower surfaces of the both side edges of the molded synthetic resin sheet 1, or the lower surface. It is placed horizontally at a position slightly lower than. The molded synthetic resin sheet 1 is configured such that the molded product S is positioned inside the guide rails 10 on both sides, and the carrying table 2 is provided.
Will be transported in.

As shown by the alternate long and short dash line in FIG. 7, the sandwiching piece 11 moves along the arc start and moves from the non-sandwiched position to the sandwiched position. When the molded synthetic resin sheet 1 is not sandwiched, the sandwiching piece 11 stands by outside the guide rail 10 as shown by the solid line in FIGS. 6 and 7. When sandwiching the molded synthetic resin sheet 1, after moving the arc start and rising,
It descends toward the upper surface of the guide rail 10. When descending, both side edges of the molded synthetic resin sheet 1 disposed on the guide rail 10 are clamped. The molded synthetic resin sheet 1 sandwiched by the sandwiching pieces 11 is stopped at the cutting position,
Do not move with the retracting table 2.

The drive mechanism 12 includes an air motor 13,
It is provided with two rotary shafts 14 which are rotated in synchronization with the air motor 13 and arms 15 of the same length which are connected to the two rotary shafts 14 so as not to rotate. Arm 15
Is connected to the rear portion of the sandwiching piece 11 so that the tip can rotate. The drive mechanism 12 rotates the air motor 13 in the forward and reverse directions to move the tip of the arm 15 along the locus indicated by the alternate long and short dash line in FIG. 7. The tip of the arm 15 has a sandwiching piece 1
Since it is connected to No. 1, the sandwiching piece 11 moves in the same arcuate trajectory as the arm tip, and is moved to the non-sandwiching position and the sandwiching position. The air motor 13 is rotated in the forward and reverse directions in synchronism with the movements of the carry-in table 2 and the cutter 3, so that the molded synthetic resin sheet 1 is clamped or not clamped.

The cutting machine 3 comprises one molded synthetic resin sheet 1
A Thomson blade 5 that cuts on the outer periphery of the molded product S, an upper pusher 16 that moves the Thomson blade 5 up and down, and a molded product S that is cut by the Thomson blade 5 and separated from the molded synthetic resin sheet 1. A holding / discharging portion 17 for holding and discharging, a contact plate 9 disposed on the lower surface of the molded synthetic resin sheet 1 and sandwiching the molded synthetic resin sheet 1 with the Thomson blade 5, and an upper pusher base 16.
An up / down moving mechanism 18 for moving up and down, and a discharging and moving mechanism 19 for moving the holding and discharging section 17 holding the molded product S from the cutting position to the discharging position.

The Thomson blade 5 is lowered by the upper presser board 16. The cutting machine 3 shown in the figure has the Thomson blade 5 fixed to the lower surface of the upper pressing base 16. The Thomson blade 5 has a blade edge for cutting the molded synthetic resin sheet 1 on the outer periphery of the molded product S facing downward. The Thomson blade 5 is mounted so that it can be replaced depending on the shape of the molded product S, for example. When the upper platform 16 descends, the Thomson blade 5 cuts the molded synthetic resin sheet 1. The Thomson blade 5 cuts the molded synthetic resin sheet 1 so as to completely separate the molded product S from the molded synthetic resin sheet 1 along the outer periphery of the molded product S.

The cutting machine 3 shown in the figure is provided with a Thomson blade 5 capable of cutting the outer circumferences of all the molded products S molded vertically and horizontally on one molded synthetic resin sheet 1. This cutting / separating device can reduce the number of steps for cutting the molded synthetic resin sheet 1 and shorten the time required for cutting. However, the Thomson blade is
It is also possible to cut the molded products formed by molding the molded synthetic resin sheet in the vertical and horizontal directions one row at a time so as to cut one row at a time. For example, a molded synthetic resin sheet obtained by molding four rows of molded products in the vertical and horizontal directions cuts four molded products lined up in one horizontal line with one stroke of moving the Thomson blade up and down.
This process is repeated four times to punch and cut all molded articles of the molded synthetic resin sheet. During this time, the loading platform is
The molded synthetic resin sheet is fed at a predetermined pitch so that the molded product is accurately transferred to the cutting position. However, the cutting machine may be provided with a Thomson blade so that a plurality of rows of molded products can be cut at one time.

The backing plate 9 supports the molded synthetic resin sheet 1 on the lower surface of the molded synthetic resin sheet 1 cut by the Thomson blade 5, more precisely, on the lower surface of the blade edge of the Thomson blade 5. The molded synthetic resin sheet 1 in which a plurality of molded products S are molded has unevenness and is not flat. The backing plate 9 is provided with concave portions and holes for guiding the convex portions, and the molded synthetic resin sheet 1 having irregularities is placed at a fixed position. The backing plate 9 is fixed below the cutting position, or is fixed to the upper surface of the carry-in table 2. Also,
In the device in which the Thomson blade is arranged below the molded synthetic resin sheet, the backing plate is fixed to the lower surface of the upper pressing base.

The upper push platform 16 is moved up and down by the vertical moving mechanism 18 to move the Thomson blade 5 up and down. The vertical moving mechanism 18 shown in the figure is a hydraulic cylinder, and moves the upper push platform 16 up and down in a horizontal posture. The up-and-down moving mechanism 18 lowers the upper pusher 16 and cuts the molded synthetic resin sheet 1 with the Thomson blade 5.

The holding and discharging section 17 holds and discharges the molded product S which is cut by the Thomson blade 5 and separated from the molded synthetic resin sheet 1. The holding and discharging unit 17 shown in the figure includes a closed suction box 20 that holds the molded product S by adsorbing it with air.
The closed suction box 20 has an air suction hole on the lower surface for holding each molded product S therebetween. Although not shown, the closed suction box 20 is connected to a vacuum source such as a blower via an opening / closing valve and a hose. When the on-off valve is opened, air is sucked into the closed suction box 20 through the air suction hole, and the cut molded articles S are adsorbed and held.
The holding / discharging portion 17 has an air suction hole at a position where each molded product S can be adsorbed so that each molded product S can be independently adsorbed and held.

A holding and discharging section 17 for sucking the molded product S with air
Is cut with securely hold each of the molded article S with a simple structure.

The holding and discharging unit 17 is moved from the cutting position to the discharging position by the discharging and moving mechanism 19. Discharge moving mechanism 1 shown
9 is a guide mechanism 2 which is adjacent to the upper push platform 16 and horizontally moves the closed suction box 20 which is the holding and discharging unit 17.
1 and a take-out mechanism 22 that moves the holding and discharging unit 17 to the cutting position and the discharging position along the guide mechanism 21.

The guide mechanism 21 is horizontally extended and fixed from the upper press base 16 toward the discharging position, and moves the holding and discharging portion 17 in the horizontal direction from the cutting position to the discharging position. The holding and discharging unit 17 is located below the upper press base 16 when sucking the cut molded product S. Therefore, the guide mechanism 21 guides the holding and discharging portion 17 so that the holding and discharging portion 17 can be moved from the lower portion of the upper press base 16 toward the discharging position. Although not shown, the guide mechanism 21 is composed of a guide rail arranged adjacent to the upper push base in a raised position and a sliding portion that slides along the guide rail, and holds the sliding portion. The holding and discharging unit is fixed to the discharging unit and moved from the cutting position to the discharging position.

The take-out mechanism 22 is provided with a timing belt 23 stretched along the guide mechanism 21 and connected to the holding / discharging portion 17, and a servo motor 24 for driving the timing belt 23. The timing belt 23 is stretched around the timing pulley in the direction of the cutting position and the discharging position. The servo motor 24 is rotated in the forward and reverse directions, and the holding and discharging unit 17 is moved to the cutting position and the discharging position by the timing belt 23.

The above cutting / separating device cuts the molded synthetic resin sheet 1 in the following steps to scrap the molded product S into scrap R.
Separate from. (1) The molded synthetic resin sheet 1 is supplied onto the carry-in table 2 at the supply position. (2) The carry-in table 2 moves from the supply position to the cutting position, and the molded synthetic resin sheet 1 is carried into the cutting position. At this time,
The upper push platform 16 is in the raised position, and the molded synthetic resin sheet 1
Is ready for loading. (3) The upper press platform 16 descends and the molded synthetic resin sheet 1 is cut by the Thomson blade 5 on the outer periphery of the molded product S. At this time, the holding and discharging unit 17 is in the discharging position. (4) The upper platform 16 moves up. The holding / discharging unit 17 moves to below the upper platform 16 to separate and adsorb the cut molded product S from the scrap R. In order for the holding and discharging part 17 to adsorb the molded product S, the on-off valve connected to the closed suction box 20 is opened. Closed suction box 20 in this state
Sucks air from the air suction hole to suck and hold the molded product S. Therefore, the molded product S is adsorbed by the closed suction box 20 and separated from the scrap R. When the closed suction box 20 adsorbs the molded product S, both edges of the molded synthetic resin sheet 1 are sandwiched by the catchers 4 in order to prevent the scrap R from rising. (5) The closed suction box 20, which is the holding and discharging unit 17,
Move from the cutting position to the discharge position. The closed suction box 20 that has moved to the discharge position releases the adsorbed molded product S. In order to detach the molded product S, the on-off valve connected to the closed suction box 20 which is the holding and discharging unit 17 is opened. Further, if necessary, pressurized air is press-fitted into the closed suction box 20 to drop the sandwiched molded product S to separate it. (6) With the molded product S separated and the scrap R remaining at the cutting position sandwiched by the catcher 4, the carry-in table 2 returns from the cutting position to the supply position. At this time, since the scrap R is sandwiched between the catchers 4, only the carry-in table 2 returns to the supply position, and the scrap R is left at the cutting position. After the carry-in table 2 returns from the cutting position to the supply position, the catcher 4 releases the scrap R from being pinched. (7) After that, the molded synthetic resin sheet 1 to be molded next is supplied to the carry-in table 2 at the supply position, and the carry-in table 2 moves from the supply position to the cutting position. At this time, since the catcher 4 has released the scrap R from being sandwiched, the carry-in table 2 that moves to the cutting position or the molded synthetic resin sheet 1 discharges the scrap R to the outside from the cutting position. Also at this time,
The upper push platform 16 is in the raised position, and the molded synthetic resin sheet 1
Is ready for loading.

Thereafter, the steps (3) to (7) are repeated to cut the molded synthetic resin sheet 1 to separate the molded product S from the scrap R.

The specific examples of cutting the molded synthetic resin sheet 1 by lowering the Thomson blade 5 on the upper pressing table 16 have been described above in detail. The cutting / separating apparatus of the present invention uses the upper pressing table to apply a backing plate. It is also possible to lower and cut the molded synthetic resin sheet. In this cutting / separating device, a backing plate is disposed on the lower surface of the descending upper pusher, and a Thomson blade is attached to the carry-in stand.

Further, in the cutting / separating device in which the Thomson blade is arranged below the cutting position, a backing plate can be arranged on the lower surface of the closed suction box. This cutting / separating device lowers the upper suction table in a state in which the closed suction box is positioned below the upper pressing table, and a backing plate of the descending closed suction box,
The molded synthetic resin sheet is cut with the Thomson blade located below.

Further, the cutting / separating device of the above-mentioned embodiment is
Although the backing plate or the Thomson blade is fixed to the upper surface of the carry-in table, the backing plate or the Thomson blade can be fixed to the lower table of the cutting machine. However, the device in which the backing plate and the Thomson blade are fixed to the lower table has a structure in which the carry-in table can supply the molded synthetic resin sheet onto the backing plate and the Thomson blade.

[0046]

The cutting / separating device of the present invention has a feature that the molding cost can be cut efficiently and the molded synthetic resin sheet can be cut efficiently to separate the molded product while reducing the manufacturing cost with a simple mechanism. That is, when the cutting / separating apparatus of the present invention transfers a molded synthetic resin sheet from a supply position to a cutting position, a cutting machine for punching out the molded synthetic resin sheet, and a carrying-back table retracts from the cutting position to the supply position. A catcher that stops the molded synthetic resin sheet at the cutting position, and the molded product that is cut and separated by a cutting machine is held by the holding / discharging unit and transferred from the cutting position to the discharging position, and the molded product is separated. This is because the scrap is removed from the supply position by the molded synthetic resin sheet to be carried in next and the carry-in table. The cutting and separating device of this structure has an extremely simple structure.
Since a plurality of molded products can be separated and scraps from which the molded products have been separated can be removed extremely efficiently, it is possible to shorten the tact time and efficiently cut the molded synthetic resin sheet to separate the molded products.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a state in which a molded product cut by a conventional cutting device is separated from a molded synthetic resin sheet and accumulated.

FIG. 2 is a schematic configuration diagram of a synthetic resin sheet cutting device previously developed by the present inventor.

FIG. 3 is a schematic plan view of another synthetic resin sheet cutting device previously developed by the present inventor.

FIG. 4 is a schematic vertical cross-sectional view of the synthetic resin sheet cutting device shown in FIG.

FIG. 5 is a side view showing a cutting and separating apparatus according to an embodiment of the present invention.

FIG. 6 is a plan view showing a catcher of the cutting / separating device according to the embodiment of the present invention.

FIG. 7 is a sectional view showing a catcher of the cutting / separating device according to the embodiment of the present invention.

[Explanation of symbols]

1. Molded synthetic resin sheet 2 ... Carrying board 3 ... Cutting machine 4 ... Catcher 5 ... Thomson blade 6 ... Reciprocating mechanism 7 ... Timing belt 8 ... Motor 9 ... Patch 10 ... Guide rail 11 ... Sandwich pieces 12 ... Drive mechanism 13 ... Air motor 14 ... Rotation axis 15 ... Arm 16 ... Upholding platform 17 ... holding / discharging section 18 ... Vertical movement mechanism 19 ... Discharge movement mechanism 20 ... Closed suction box 21 ... Guide mechanism 22 ... Extraction mechanism 23 ... Timing belt 24 ... Servo motor 40 ... Workbench 41 ... Groove 42 ... Thomson blade 43 ... Carrier 44 ... Cutting machine 45 ... Open / close shutter 46 ... Falling gap 47 ... Pusher 48 ... Discharge conveyor 49 ... Patch 50 ... Clamping device S: Molded product R ... scrap

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-60-16398 (JP, A) JP-A-3-35999 (JP, A) JP-A-9-66562 (JP, A) Actual development Sho-59- 26313 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B26F 1/44 B26F 1/40

Claims (5)

(57) [Claims] 1. A molded synthetic resin sheet (1) obtained by molding a plurality of molded products (S) is cut along the molded product (S), and the cut molded product (S) and molded product (S). S (S) removed scrap (R)
An apparatus for separating and separating a molded synthetic resin sheet having all the following configurations. (A) The cutting / separating device is a single molded synthetic resin sheet.
The loading table (2) for transferring (1) from the supply position to the cutting position in a horizontal posture, and the molded synthetic resin sheet (1) transferred to the cutting position by this loading table (2) are molded products (S). A cutting machine (3) for punching out along the outer periphery of the mold, and a catcher (4) for stopping the molded synthetic resin sheet (1) at the cutting position when the loading table (2) retracts from the cutting position to the supply position. . (B) The cutting machine (3) consists of a backing plate (9) and a Thomson blade that vertically cut the molded synthetic resin sheet (1) supplied to the cutting position.
(5) and are provided. (C) The backing plate (9) is a molded synthetic resin sheet at the cutting position.
The Thomson blade (5) is disposed below the (1), is above the molded synthetic resin sheet (1), and is pressed onto the molded synthetic resin sheet (1) to form the molded synthetic resin sheet (1). To cut. (D) The cutting machine (3) presses the Thomson blade (5) against the molded synthetic resin sheet (1) and cuts the molded synthetic resin sheet (1) with the Thomson blade (5) and an upper pusher (16). An upper / lower moving mechanism (18) for moving the upper pusher (16) vertically in a horizontal posture is provided. ( E ) The cutting machine (3) cuts the molded synthetic resin sheet
A holding and discharging section (17) for transferring the molded product (S) separated from (1) from the cutting position to the discharging position is provided. (F) The holding and discharging part (17) of the cutting machine (3) sucks the molded product (S).
It has a closed suction box (20) for wearing and holding
Box (20) sucks air into the bottom surface and adsorbs molded product (S)
The air suction hole is opened. (G) The cutting machine (3) is a discharging and moving mechanism for moving the holding and discharging section (17) holding the molded product (S) separated from the molded synthetic resin sheet (1) from the cutting position to the discharging position. It has (19). (H) The carry-in table (2) transfers the molded synthetic resin sheet (1) from the supply position to the cutting position, and the upper pressing table (16) lowers the Thomson blade (5) onto the molded synthetic resin sheet (1). Let me Thomson blade
The molded synthetic resin sheet (1) is cut by the (5) and the backing plate (9), and the upper press base (16) is raised, and the cut and separated molded product (S) is held and discharged. The molded product (S) is held by (17) and transferred from the cutting position to the discharge position by the holding and discharging section (17), and the scrap (R) from which the molded product (S) has been removed
Is configured to be removed from the supply position by the molded synthetic resin sheet (1) and the loading table (2) that are loaded next. 2. The apparatus for cutting and separating a molded synthetic resin sheet according to claim 1, wherein the loading table (2) has a backing plate (9) on its upper surface. 3. A molded synthetic resin sheet (1) formed by molding a plurality of molded articles (S) is cut along the molded article (S), and the cut molded article (S) and the molded article ( S (S) removed scrap (R)
An apparatus for separating and separating a molded synthetic resin sheet having all the following configurations. (A) The cutting / separating device is a single molded synthetic resin sheet.
The loading table (2) for transferring (1) from the supply position to the cutting position in a horizontal posture, and the molded synthetic resin sheet (1) transferred to the cutting position by this loading table (2) are molded products (S). A cutting machine (3) for punching out along the outer periphery of the mold, and a catcher (4) for stopping the molded synthetic resin sheet (1) at the cutting position when the loading table (2) retracts from the cutting position to the supply position. . (B) The cutting machine (3) consists of a backing plate (9) and a Thomson blade that vertically cut the molded synthetic resin sheet (1) supplied to the cutting position.
(5) and are provided. (C) The Thomson blade (5) is arranged below the molded synthetic resin sheet (1) at the cutting position, and the backing plate (9) is above the molded synthetic resin sheet (1). The molded synthetic resin sheet (1) is cut by being pressed onto the (1). (D) The cutting machine molds the backing plate (9) and the synthetic resin sheet (1)
Press on and mold with Thomson blade (5) Synthetic resin sheet (1)
An upper push board (16) for cutting the sheet and a vertical movement mechanism (18) for vertically moving the contact plate (9) are provided. ( E ) The cutting machine (3) cuts the molded synthetic resin sheet
A holding and discharging section (17) for transferring the molded product (S) separated from (1) from the cutting position to the discharging position is provided. (F) The holding and discharging part (17) of the cutting machine (3) sucks the molded product (S).
It has a closed suction box (20) for wearing and holding
Box (20) sucks air into the bottom surface and adsorbs molded product (S)
The air suction hole is opened. (G) The cutting machine (3) is a discharging and moving mechanism for moving the holding and discharging part (17) holding the molded product (S) separated from the molded synthetic resin sheet (1) from the cutting position to the discharging position. It has (19). (H) The carry-in table (2) transfers the molded synthetic resin sheet (1) from the supply position to the cutting position, and the upper push table (16) lowers the backing plate (9) onto the molded synthetic resin sheet (1). Then, the molded synthetic resin sheet (1) is cut with the Thomson blade (5) and the backing plate (9), and the upper pusher base (16) is raised, and the cut and separated molded product (S ) Is held by the holding and discharging section (17), and the holding and discharging section (17) is held.
Therefore, the molded product (S) is transferred from the cutting position to the discharge position, and the scrap (R) from which the molded product (S) has been removed is next loaded into the molded synthetic resin sheet (1) and the loading table (2). It is configured to be removed from the supply position with. 4. The apparatus for cutting and separating a molded synthetic resin sheet according to claim 2, wherein the loading table (2) has a Thomson blade (5) on its upper surface. 5. A guide rail (10) for allowing a catcher (4) to place and move both sides of a molded synthetic resin sheet (1),
Above the guide rail (10), a sandwiching piece (11) for sandwiching the side edge of the molded synthetic resin sheet (1) from above is provided,
When the loading table (2) is retracted from the cutting position to the supply position,
Molded synthetic resin sheet with sandwiching piece (11) and guide rail (10)
The apparatus for cutting and separating a molded synthetic resin sheet according to claim 1 or 3, wherein the side edge of (1) is sandwiched to stop the molded synthetic resin sheet (1).