JP2003175494A - Trimming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trimming device capable of bringing a condition where one portion is left uncut when a molding is cut by a force-cutting blade, capable of separating the molding from a resin sheet by a knock-out device arranged in a downstream to be collected and stacked, and capable of regulating a position of the knock-out device. <P>SOLUTION: This trimming device has a device main body 11 provided with a cutter for cutting the moldings 18 molded on the resin sheet 17, the knock-out device 30 arranged position-regulatably over a range from the cutter up to a downstream of the device main body in a conveying direction of the resin sheet to punch the moldings from the resin sheet, and a collecting and stacking device arranged position-regulatably over the range from the cutter up to the downstream of the device main body in the conveying direction of the resin sheet to collect and stack the punched moldings from the resin sheet. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trimming device.

[0002]

2. Description of the Related Art Conventionally, a resin for molding a resin sheet to mold a molded article made of resin such as a container for containing foods, beverages, electric parts, daily necessities, pharmaceuticals, etc. and a lid (lid) of the container. In the sheet molding line, the molded product is carried out from a trimming device that cuts and separates the resin molded product molded by the molding device from the resin sheet.

FIG. 2 is a conceptual diagram of a conventional trimming device.

The resin sheet 101 includes a conveying roller 106,
In a molding device (not shown) that is intermittently conveyed by 107 and is arranged on the upstream side (left side in the drawing) in the conveyance direction, after the molded product 102 is molded, the molded product 102 is guided to the trimming device by being guided by the guide member 119. To be The molded product 102 has an upwardly convex shape, and a plurality of molded products 102 are molded in the width direction of the resin sheet 101 (direction perpendicular to the drawing).

On the other hand, the upper punching blade controller sends a command to an upper punching blade driving device (not shown), and the upper punching blade 1
11 can be moved up and down. Then, the upper punching blade 111 is moved downward,
When engaged with the lower punching blade 112, the outer periphery of the molded product 102 positioned on the lower punching blade 112 is cut to separate the molded product 102 from the resin sheet 101. By trimming. Therefore, since the molded product 102 is trimmed while being accurately positioned, the cutting position of the molded product 102 does not deviate, and the shape of the outer periphery and the condition of the cut surface are good.

The trimmed molded product 102 is also used.
Falls through the opening of the lower punching blade 112 and slides down along the inner wall surface of the opening of the lower punching blade 112 in a certain posture. Then, on the elevating table 114 arranged below the lower punching blade 112 and moved downward,
The molded products 102 after being trimmed are accumulated. In this case, the elevating table 114 is used for the molded products 102 to be accumulated.
Is gradually moved downward as the number of the molds increases, and the molded products 102 are accumulated in an aligned state.

Therefore, handling in subsequent steps becomes easy. Then, the integrated molded product 102
Is sent to a subsequent process such as packaging or boxing by a conveyor or the like.

[0008]

However, in the above-mentioned conventional trimming device, the upper punching blade 111 is moved downward so as to engage with the lower punching blade 112, and the upper punching blade 112 is placed on the lower punching blade 112. The positioned outer periphery of the molded product 102 is cut, and the molded product 102 is separated from the resin sheet 101 to be trimmed. In this case, it is necessary that the upper punching blade 111 and the lower punching blade 112 mesh with each other with high accuracy. Further, since the trimmed molded product 102 also drops on the inner wall surface of the opening of the lower punching blade 112, it needs to be processed with high accuracy. Therefore, the manufacturing cost of the upper punching blade 111 and the lower punching blade 112 is high, and the upper punching blade driving device, the lower punching blade mounting base, etc. are required to have high precision. The manufacturing cost of the entire trimming device increases.

Therefore, a trimming device using a push-cut blade, which is commonly called a Thomson blade, has been proposed (Japanese Unexamined Patent Publication No. 200-200200).
No. 1-205695 and Japanese Patent Laid-Open No. 2001-88209
(See the official gazette). A trimming device using the push-cut blade includes a lower mold table on which a resin sheet on which a molded product is molded slides on the upper surface, and an upper mold table that can be moved up and down. A push-cut blade commonly called a Thomson blade is attached to the upper mold table. The push-cut blade has a shape corresponding to the shape of the periphery of the molded product, and cuts the edge of the molded product.

When the molded product is positioned on the lower mold table and the upper mold table is moved downward,
The resin sheet around the molded product corresponding to the push-cut blade is pressed against the upper surface of the lower mold table from above to cut. Thereby, the molded product is simultaneously cut and separated from the resin sheet, that is, trimmed.

However, in the trimming device,
The trimmed punched product cannot be dropped through the opening of the lower punching blade like a trimming device having an upper punching blade and a lower punching blade. Therefore, every time one molded product is trimmed, the upper die table is raised to a high position and the punched molded product is transferred to another place by a transfer device provided separately from the trimming device. Need to let. Therefore, the throughput of the trimming device is reduced. Further, since it is necessary to manually stack the punch-molded products at other places, it takes a long time to carry them by a conveyor or the like to a later process such as packaging or boxing.

Therefore, when the resin sheet around the molded product is cut by the pressing blade, a part of the resin sheet is left uncut,
A trimming device has been proposed in which the molded product is separated from the resin sheet and accumulated on a table by a knockout device arranged on the downstream side in the conveying direction of the resin sheet (Japanese Patent Laid-Open No. 2001-88208). reference). However, in the trimming device, the positional relationship between the upper die table to which the push-cut blade is attached and the knockout member of the knockout device is fixed. Therefore, it becomes impossible to deal with the case where the distance between the molded products formed on the resin sheet is changed, such as when the type of the molded product is changed.

According to the present invention, the problems of the conventional trimming device are solved, and a part of the molded product is left uncut when the molded product is cut by a press-cutting blade, and the trimming device is disposed on the downstream side in the conveying direction of the resin sheet. With the knockout device, the molded products are separated from the resin sheet and accumulated,
By making it possible to adjust the position of the knockout device, it is possible to cope with the case where the interval of the molded product molded on the resin sheet is changed, and the upper punching blade and the lower punching blade, It is an object of the present invention to provide a trimming device that can be applied even when trimming a molded product.

[0014]

To this end, in the trimming device of the present invention, the trimming device includes a device main body including a cutting device for cutting a molded product formed on a resin sheet, and the cutting device in the conveying direction of the resin sheet. Positionally adjustable in the range to the downstream side of the apparatus main body, knockout device for punching the molded product from the resin sheet, and from the cutting device in the conveyance direction of the resin sheet to the downstream side of the apparatus main body. And a stacking device for stacking the molded products punched out from the resin sheet, the stacking device being arranged so that the position thereof can be adjusted.

In another trimming device of the present invention,
Further, the cutting device includes a press-cutting blade that cuts the periphery of the molded product while leaving an uncut portion, and the knockout device and the stacking device are arranged on the downstream side of the device main body in the conveyance direction of the resin sheet. .

In still another trimming device of the present invention, further, in the device body, a supporting member to which a punching table having a through hole for the molded product is detachably attached and whose position can be adjusted is formed of the resin. It is provided on the downstream side in the sheet conveying direction.

In still another trimming device of the present invention, the stacking device further includes a lifting table for stacking the molded products.

In still another trimming device of the present invention, the stacking device further includes a shooter for stacking the molded products therein.

In still another trimming device of the present invention, the cutting device further comprises an upper punching blade and a lower punching blade for completely cutting the periphery of the molded product, and the knockout device and the stacking device are It is arranged at the position of the cutting device in the conveying direction of the resin sheet.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view of a trimming device according to the first embodiment of the present invention, FIG. 3 is a side view of a punching table according to the first embodiment of the present invention, and FIG. 4 is a first view of the present invention. FIG. 4 is a plan view of the punching table in the embodiment and is a view on arrow A in FIG. 3.

In the figure, reference numeral 10 is a trimming device, which is a continuous resin sheet 17 on which foods such as cup noodles, sashimi and jelly, fruit juices, beverages such as carbonated water, electric parts, daily necessities, pharmaceuticals, etc. In a resin sheet molding line for molding a resin-made molded product 18 such as a container to be housed and a lid of the container, the molded product 18 is disposed downstream of the molding device in the transport direction of the resin sheet 17 and molded. The resin sheet 17 is cut and separated. Here, the resin sheet 17 is fed from a sheet supply roll, heated to a predetermined temperature in a heating device including a heater, and then molded by a molding device. In this case, the molding apparatus molds the molded product 18 on the continuous resin sheet 17 by a thermoforming method such as vacuum molding, pressure molding, drawing, press molding, or matched molding.

The molded product 18 in the present embodiment may have any shape, but in consideration of handling during transportation, storage, etc., the molded product 18 can be fitted to each other and accumulated. It is desirable that the shape is, for example, a plate, a cup, or the like having an inclined sidewall and a wide opening and a narrow bottom. A plurality of the molded products 18 are formed in the width direction of the resin sheet 17 (perpendicular to the drawing), for example, five each, and in the conveying direction of the resin sheet 17 (right direction in FIG. 1), A large number of rows are formed at a predetermined pitch. Note that, in the present embodiment, an example in which the inlet of the molded product 18 faces downward, that is, the molded product 18 is molded and conveyed so as to be convex upward explain.

The resin sheet 17 in this embodiment may be of any type, for example, P
VC (polyvinyl chloride), PS (polystyrene), expanded polystyrene, PP (polypropylene), PET (polyethylene terephthalate), PC (polycarbonate), ABS resin, methacrylic resin, biodegradable resin and the like. Also, considering water resistance, gas barrier properties, etc.,
It may be a sheet in which a plurality of kinds of resins are laminated.

The device main body 11 of the trimming device 10 is an upper table 12 attached to the device main body 11 so as to be vertically movable as a cutting device, and a lower table fixed to the device main body 11. Have 14. Here, the upper table 12 is vertically moved by an upper table driving device (not shown). In this case, as the upper table driving device, the upper table 12 such as a device including a hydraulic cylinder and a rod that can be moved in the vertical direction, a device including a crank shaft that is rotated by a motor, and a rod that can be moved in the vertical direction is moved up and down. A device that generates a driving force for moving in the direction is used. The upper table 1
A carriage (not shown) for sliding along a linear guide rail (not shown) attached to the apparatus body 11 is attached to the side portion of 2. This allows
The upper table 12 can be smoothly moved in the vertical direction without rattling in the horizontal direction.

A push-cut blade supporting member 13 is attached to the lower surface of the upper table 12, and the push-cut blade supporting member 1 is provided.
A push-cut blade 13 a, which is commonly called a Thomson blade, is attached to the lower surface of 3. Here, the push-cut blade 13a is a cylindrical body having a cross section of the same shape as the outer periphery of the molded product 18, for example, a circular shape, for example, a cylinder, and the upper end is attached to the push-cut blade support member 13. The lower end serves as a cutting edge for cutting the resin sheet 17. A plurality of, for example, five push-cut blades 13a are attached side by side in the width direction of the resin sheet 17. In addition, the push-cut blade support member 13 has a recess 13b for accommodating a molded product 18 protruding above the resin sheet 17, and each press-cut blade 13a.
Is formed at a position corresponding to.

On the other hand, on the upper surface of the lower table 14,
A plurality of, for example five, projection plates 15a are formed side by side in the width direction of the resin sheet 17, and the projection plates 15a are attached to the molded product 18. The resin sheet 17 is positioned on the upper surface of the plate 15. Then, the upper table 12 is moved downward, the blade edge of the push-cut blade 13a is pressed against the upper surface of the contact plate 15, and the resin sheet 1
It is designed to cut 7. In the present embodiment, a cutout is formed in a part of the cutting edge of the push-cutting blade 13a. Therefore, even if the blade edge of the push-cut blade 13a is pressed against the upper surface of the contact plate 15 to cut the resin sheet 17, the molded product 1 is formed on the resin sheet 17 as described later.
The cutting line 27 formed so as to define the outer periphery of 8 has a substantially closed ring shape, for example, a circular ring shape, but partially includes an uncut portion 28. That is, the pressing blade 1
Even if the periphery of the molded product 18 is cut by the 3a and the contact plate 15, the uncut portion 28 remains, so the molded product 18 is not separated from the resin sheet 17, and by the slight uncut portion 28, It is in a state of being connected to the resin sheet 17.

Reference numeral 20 denotes a sheet guide device arranged upstream of the main body 11 of the apparatus in the conveying direction of the resin sheet 17, and the sheet guide device 20 swings on a support base 21 and the support base 21. The swing frame 22 is movably mounted, the upper sheet guide 23 and the lower sheet guide 24 mounted on the swing frame 22, and a swing cylinder device 25 for swinging the swing frame 22.

Generally, in a resin sheet molding line,
Since the trimming device 10 and the molding device (not shown) disposed on the upstream side (the left side in FIG. 1) in the conveying direction of the resin sheet 17 have a difference in the conveying speed of the resin sheet 17, the difference in the conveying speed is absorbed. The resin sheet 17 is slackened between the molding device and the trimming device 10 as a buffer. As shown in FIG. 1, it is preferable that the upstream side of the lower sheet guide 24 has a curved surface so that the slackened resin sheet 17 can be smoothly fed onto the contact plate 15 at a predetermined height. . Then, the swing frame 22 is intermittently swung by the swing cylinder device 25 in conjunction with the upper table 12. As a result, the resin sheet 17 is attached to the contact plate 15
Above, it is intermittently moved up and down.

Further, 16 is a conveying roll, which conveys the resin sheet 17 after being cut by the pressing blade 13a and the contact plate 15 by sandwiching both ends thereof. Here, the carrying roll 16 is intermittently rotated by a driving device (not shown) and stopped during the trimming operation.

Reference numeral 30 denotes a knockout device disposed on the downstream side of the device main body 11 in the conveying direction of the resin sheet 17, and the knockout device 30 is moved up and down by the knockout drive source 31 and the knockout drive source 31. A driven member 31a which is moved in the direction, an attachment member 31b attached to the driven member 31a, and
The mounting member 31b has a plurality of, for example, five knockout rods 32, the upper ends of which are mounted. here,
The knockout drive source 31 is a rodless cylinder,
The driven member 31a is a rod driven by a rodless cylinder, a piston rod fixed to a piston in the hydraulic cylinder or the pneumatic cylinder, or a pulse motor, which is a hydraulic cylinder, a pneumatic cylinder, a pulse motor, a linear motor, or the like. It is a rod-shaped member such as a screw shaft reciprocated by a screw nut mechanism attached to a rotating shaft, an output shaft of a linear motor, or the like.

A plurality of the knockout rods 32 are provided.
Are arranged side by side in the width direction of the resin sheet 17 and at positions corresponding to the push-cut blades 13a. A knockout plate 3 having an outer circumference smaller than the outer circumference of the molded product 18 is provided at the lower end portion of the knockout rod 32.
2a is attached.

A slide member 34 is attached to the upper end portion of the knockout drive source 31, and the slide member 34 slides in the conveying direction of the resin sheet 17 along a slide rail 35 attached to the upper part of the apparatus main body 11. You can do it. Thereby, the position of the knockout device 30 with respect to the device body 11 can be adjusted. Therefore, even if the type of the molded product 18 is changed and the size, shape, arrangement, interval, etc. of the molded product 18 formed on the resin sheet 17 are changed, it is possible to change to the corresponding knockout rod 32. Also, the position of the changed knockout rod 32 can be easily adjusted. Further, the knockout device 30 can be slid and moved until it reaches a position right above the upper table 12.

As shown in FIG. 1, the slide rail 35 is located at a position upstream of the central portion of the apparatus main body 11 in the conveying direction of the resin sheet 17, and the apparatus main body 1
The first resin sheet 17 extends to a position projecting to the downstream side in the transport direction. Thereby, the position of the knockout device 30 can be adjusted over a wide range. That is, the knockout device 30 includes the upper table 12 and the lower table 14 as a cutting device in the conveyance direction of the resin sheet 17 from the device main body 11.
The position is adjustable up to the downstream side.
Further, the slide rail 35 may be a linear guide rail of a linear system, and the slide member 34 may be a carriage of a linear system. In this case, the position of the knockout device 30 with respect to the device body 11 can be adjusted accurately and in a short time.

A punching table 37 is provided below the knockout device 30. As shown in FIG. 3, the punching table 37 includes a support arm member 36 as a support member having a base end portion attached to the apparatus body 11.
It is mounted on the top of the resin sheet 17 so as to be removable and positionally adjustable in the transport direction of the resin sheet 17. 36
Reference numeral a is a mounting reinforcement member for the support arm member 36.

Here, as shown in FIG. 4, the support arm member 36 is formed with a mounting elongated hole 36b extending in the conveying direction of the resin sheet 17 (left and right direction in FIG. 4). In this case, a bolt member 38 for fixing the punching table 37 placed on the support arm member 36 is inserted into the attachment elongated hole 36b. Then, by tightening the bolt member 38, the punching table 37
Are fixed to the support arm member 36. Thereby, the punching table 37 can be easily attached / detached and its position can be adjusted. Therefore, the type of molded product 18 has changed,
The size of the molded product 18 formed on the resin sheet 17,
Even if the shape, arrangement, spacing, etc. are changed, it can be easily changed to the corresponding punching table 37, and the position of the changed punching table 37 can be easily adjusted. The height position of the upper surface of the punching table 37 is substantially equal to the height position of the upper surface of the contact plate 15.

Here, the punching table 37 is formed with a plurality of, for example, five through holes 37a through which the molded product 18 passes in the width direction of the resin sheet 17 (vertical direction in FIG. 4). The positions of the passage holes 37a correspond to the molded products 18 on the resin sheet 17. The size of the passage hole 37a is the same as that of the molded product 1 described above.
8 is slightly larger than the outer circumference. As a result, the molded product 18 punched from the resin sheet 17 by the knockout rod 32 can pass through the passage hole 37a and move downward. The resin sheet 17 after the molded product 18 is punched out is a scrap sheet 17a.
It is conveyed rightward in FIG. 1 by the conveying roll 16a and is disposed of in a processing device (not shown).

Below the punching table 37,
A molded product stacking device 40 as a stacking device is provided. The molded product stacking device 40 includes a lifting drive source 42, a lifting member 42a vertically moved by the lifting drive source 42, and a plate-shaped lifting table 41 attached to an upper end of the lifting member 42a. . Here, the lifting drive source 42 is, for example, a rodless cylinder, a hydraulic cylinder, a pneumatic cylinder, a pulse motor, a linear motor, etc., and the lifting member 42a is, for example, a rod driven by a rodless cylinder, a hydraulic cylinder. Or a rod-shaped member such as a piston rod fixed to a piston in a pneumatic cylinder, a screw shaft reciprocated by a screw nut mechanism attached to a rotary shaft of a pulse motor, an output shaft of a linear motor, etc. It may be one. The lifting table 41 extends in the width direction of the resin sheet 17 and has a plurality of passage holes 37 as shown in FIG.
It has an area corresponding to all of a.

Here, the lower end of the lifting drive source 42 is
The slide carriage 43 is attached to the slide carriage 43.
The wheels 43a attached to the bottom surface of the trimming device 10 can be moved on the floor of a factory or the like where the trimming device 10 is installed. As a result, the position of the molded product stacking device 40 with respect to the device body 11 can be adjusted. Therefore, even when the type of the molded product 18 is changed and the size, shape, arrangement, interval, etc. of the molded product 18 formed on the resin sheet 17 are changed, the lifting table 41 is changed and the position is adjusted. The position can be easily adjusted so as to reach directly below the punching table 37.
Furthermore, the molded product stacking device 40 can be moved to a position directly below the lower table 14. That is, the molded product accumulating device 40 is configured such that the resin sheet 17
Table 12 as a cutting device in the transport direction of the
Further, the position is adjustable in the range from the lower table 14 to the downstream side of the apparatus main body 11.

A pusher drive source 45 having a pusher rod 45a is attached to the pusher support member 44 attached to the slide carriage 43. The pusher driving source 45 is, for example, a rodless cylinder, a hydraulic cylinder, a pneumatic cylinder, a pulse motor, a linear motor, or the like, and the pusher rod 45a is, for example, a rod, a hydraulic cylinder, or a pneumatic cylinder driven by a rodless cylinder. Piston rod fixed to the piston in the cylinder,
It is a rod-shaped member such as a screw shaft reciprocated by a screw nut mechanism attached to the rotary shaft of the pulse motor, an output shaft of a linear motor, or the like, but may have any structure.

The pusher rod 45a shown in FIG.
A pusher plate 46 is attached to the right end of the. Here, the height position of the lower end of the pusher plate 46 is slightly higher than the height position of the upper surface of the lifting table 41 when it is located at the bottom dead center.
By moving to the right in FIG. 1, it is possible to push out the molded products 18 accumulated on the elevating table 41 when they are located at the bottom dead center.

A belt conveyor 47 is arranged on the right side of the elevation table 41 in the figure when it is located at the bottom dead center. Here, the height position of the upper surface of the belt conveyor 47 is substantially equal to the height position of the upper surface of the lifting table 41 when it is located at the bottom dead center, and the belt conveyor 4
There is almost no gap between the upper surface of 7 and the upper surface of the lifting table 41 when it is located at the bottom dead center. As a result, the accumulated molded products 18 pushed out from the elevating table 41 by the pusher plate 46 are transferred onto the belt conveyor 47 while maintaining the accumulated state. Then, the accumulated molded products 18 transferred onto the belt conveyor 47 are conveyed to the outside of the trimming device 10 and sent to a post-process such as packaging and boxing by a conveyer device such as a conveyor or a carriage not shown. .

The trimming device 10 has a control device (not shown), which is a CPU (central operator), semiconductor memory, storage means such as hard disk, input means such as keyboard and touch panel, CRT, liquid crystal. A display means such as a display, an I / O (input / output interface), and the like are provided, and the operation of all or part of the trimming apparatus 10 is controlled in a comprehensive manner. Note that the control device is not an independent one, but is, for example, a device integrated with another control device as a part of a control device that controls devices such as a molding device and a heating device in a resin sheet molding line. be able to.

The knockout rod 32 and the mounting member 31b of the knockout device 30 can be replaced depending on the shape and number of the molded products 18. The knockout rod 32 is detachable from the mounting member 31b, and the mounting member 31b is detachably provided on the driven member 31a. In addition, the lifting table 41 is also lifted depending on the shape and the number of the molded products 18.
It can be replaced from a.

Next, the operation of the trimming device having the above construction will be described.

FIG. 5 is a plan view showing changes in the state of the resin sheet according to the first embodiment of the present invention.

First, the resin sheet 17 is intermittently conveyed, and the first molded product 18 is sent onto the contact plate 15 and stopped. In this case, the rocking cylinder 25 of the sheet guide device 20 operates and the rocking frame 22 rises, so that the resin sheet 17 is conveyed with its lower surface positioned above the projection 15a of the contact plate 15. It And the molded product 1
When 8 reaches directly above the protrusion 15a, the resin sheet 1
7 is stopped, the swing cylinder 25 is operated, and the swing frame 22 is lowered. Then, the molded product 18 is lowered from above, and is fitted over the projection 15a. That is, the resin sheet 17 is conveyed so as to be agitated, so that the molded product 1
8 is fitted to the protrusion 15a. As a result, the resin sheet 17 is accurately positioned on the contact plate 15. In this case, as shown in FIG. 5A, five molded products 18 are arranged in the width direction of the resin sheet 17 (vertical direction in FIG. 5). At this time, the upper table 12,
As shown in FIG. 1, the push-cut blade supporting member 13 and the push-cut blade 13a are located at the top dead center, and the cutting edge of the push-cut blade 13a is located at a high position apart from the upper surface of the contact plate 15. Even if the sheet 17 is fanned, the upper surface of the molded product 18 does not come into contact with the cutting edge of the pressing blade 13a and is not damaged.

Next, an upper table driving device (not shown) is activated to move the upper table 12, the push-cutting blade support member 13 and the push-cutting blade 13a downward and bring them into a lowered state. At this time, the molded product 18 is the push-cut blade supporting member 1
Since it fits in the recess 13b formed in the No. 3, it is not crushed by the push-cutting blade support member 13. Also,
The resin sheet 17 is pressed against the upper surface of the contact plate 15 by the edge of the push-cut blade 13a and cut. As a result, the periphery of the molded product 18 is cut while being accurately positioned, and a cutting line 27 is formed on the resin sheet 17 as shown in FIG. 5B.

In this case, since the notch is formed in a part of the cutting edge of the pressing blade 13a, even if the cutting edge of the pressing blade 13a cuts the resin sheet 17, a molded product is formed on the resin sheet 17. The cutting line 27 formed so as to define the outer periphery of 18 has a substantially closed ring shape, for example, a circular ring shape, but partially includes an uncut portion 28. That is, even when the periphery of the molded product 18 is cut by the push-cut blade 13a and the contact plate 15, the molded product 18 is not separated from the resin sheet 17 as shown in FIG. The uncut portion 28 makes a state of being connected to the resin sheet 17.

Next, the upper table driving device is actuated to move the upper table 12, the push-cutting blade support member 13 and the push-cutting blade 13a upward so that the upper table 12 is positioned at the top dead center. Then, the swing cylinder 2 of the sheet guide device 20
5, the rocking frame 22 rises, so that the first molded product 18 connected to the resin sheet 17 by the uncut portion 28 comes off the projection 15a of the contact plate 15 and together with the resin sheet 17. Can be raised. Then, when the resin sheet 17 is intermittently conveyed, the first molded product 18
Is conveyed by one pitch downstream, and the second molded product 18 is sent onto the contact plate 15 and stopped. After that, the above-described operation is repeated.

Then, when the n-th (6th in the present embodiment) molded product 18 is fitted into the projection 15a and the resin sheet 17 is accurately positioned on the contact plate 15, FIG.
The first molded product 18 as shown in (c) is positioned on the passage hole 37 a of the punching table 37. In this case, the punching table 37 is positioned at the bolt member 3
Since it can be easily adjusted by loosening 8 slightly, it is adjusted in advance according to the pitch of the molded product 18.

Next, the knockout drive source 31 of the knockout device 30 is actuated, the knockout rod 32 is moved downward, and the knockout plate 32a attached to the lower end of the knockout rod 32 becomes the molded product 1 described above.
Push 8 down. As a result, the uncut portion 28 connecting the molded product 18 to the resin sheet 17 is torn off, and the molded product 18 is separated from the resin sheet 17 and moved downward through the passage hole 37a. That is, the molded product 18 is knocked out. As a result, the resin sheet 17 becomes a scrap sheet 17a in which the cut holes 18a of the molded product 18 are formed, as shown in FIG. 5D, and is conveyed rightward in FIG. Discarded.

In this case, it is desirable that the transport rolls 16 and 16a be stopped and the resin sheet 17 be locked. Thereby, the resin sheet 17 is
Since it is fixed on the punching table 37, the uncut portion 28 can be torn off with a slight force. Since the size of the passage hole 37a is slightly larger than the outer circumference of the molded product 18, the punching table 37
An edge portion, which is a boundary between the upper surface of the cutting edge and the side wall of the passage hole 37a, is located near the outside of the cutting line 27. For this reason, the uncut portion 28 can be torn off with a slight force even by the edge action exerted by the edge portion. Therefore, since the force with which the knockout plate 32a pushes the molded product 18 downward is small,
The molded product 18 does not deform. After that, the above-described operation is repeated, but the knockout rod 32 is moved in the vertical direction in synchronization with the upper die table 12.

Then, the molded product 18 moved downward through the passage hole 37a is placed and accumulated on the elevating table 41 of the molded product accumulating apparatus 40. Where 1
When the second molded product 18 is knocked out, the lifting drive source 42 is actuated in advance, the lifting table 41 is moved upward, and is located at the top dead center. Therefore, since the lifting table 41 is located immediately below the punching table 37, the lifting table 41 passes through the passage hole 37a.
The falling distance of the first molded product 18 that drops upward is extremely short. Therefore, the posture of the first molded product 18 is not disturbed, and the first molded product 18 is not deformed or damaged by the impact dropped on the lifting table 41.

Next, the second molded product 18 is positioned on the passage hole 37a of the punching table 37, and the above-described operation is repeated. However, before the second molded product 18 is knocked out, the ascending / descending operation is performed. The drive source 42 operates to move the lifting table 41 downward by one pitch of the molded product 18. Then, when the second molded product 18 is knocked out and falls through the passage hole 37a, the second molded product 18 is accumulated on the first molded product 18 already existing on the lifting table 41.

Thereafter, by repeating the above-mentioned operation, the molded products 18 are accumulated on the elevating table 41 as shown in FIG. In this case, the lifting table 4
Since the 1s are sequentially moved downward by one pitch of the stacked molded products 18, the molded products 18 are stacked on the elevating table 41 while maintaining the aligned state.

When a predetermined number of molded products 18 are accumulated on the elevating table 41, the elevating table 41 is moved downward and reaches the bottom dead center. Then, the pusher driving source 45 is operated, the pusher plate 46 is moved to the right in FIG. 1, and the molded product 18 accumulated on the elevating table 41 located at the bottom dead center is pushed out. 18 is transferred on the belt conveyor 47 while maintaining the accumulated state. Then, the accumulated molded product 18 transferred onto the belt conveyor 47.
Is conveyed to the outside of the trimming device 10 and sent to a post-process such as packaging and boxing by a conveyer (not shown) such as a conveyor or a carriage.

As described above, in the present embodiment, the trimming device 10 for cutting and separating the molded product 18 from the resin sheet 17, that is, trimming, includes the push-cut blade 13.
A part of the molded product 18 is left uncut when the molded product 18 is cut by a, and the molded product 18 is connected to the resin sheet 17 by a slight uncut portion 28. Then, the knockout device 30 arranged on the downstream side separates the molded product 18 from the resin sheet 17, drops it through the passage hole 37a of the punching table 37, and accumulates it on the elevating table 41 of the molded product accumulating device 40. .

In this case, the knockout device 30, the punching table 37, and the molded product stacking device 40 have a structure capable of adjusting their positions. Therefore, even when the type of the molded product 18 is changed and the size, shape, arrangement, interval, etc. of the molded product 18 formed on the resin sheet 17 are changed, it is possible to easily and appropriately respond. it can. Therefore,
The molded product 18 can be trimmed and the trimmed molded product 18 can be dropped through the passage holes 37a of the punching table 37 and accumulated without using the costly upper punching blade and lower punching blade. .

Therefore, the manufacturing cost of the trimming device 10 can be reduced. Further, unlike the conventional trimming device using a push-cut blade, it is not necessary to carry out the molded product 18 to the outside of the trimming device 10 for each trimming operation, and it is sufficient to carry out after molding a predetermined number. Therefore, the throughput of the trimming device 10 and the resin sheet molding line is improved.

Next, a second embodiment of the present invention will be described. The description of the same structure and operation as those in the first embodiment will be omitted.

FIG. 6 is a side view of the trimming device according to the second embodiment of the present invention.

In the figure, reference numeral 51 designates the punching table 3 at the upper end.
7 is a shooter connected to the passage hole 37a of
Is a support member that supports the shooter 51. In the present embodiment, a shooter 51 is used in place of the molded product stacking apparatus 40 of the first embodiment to stack the molded products 18 that fall through the passage holes 37a.

In this case, the shooter 51 is the molded product 1
8 is a pipe having a cross section having the same shape as the outer peripheral shape of 8, and includes a vertical upper end vicinity portion, a horizontal lower end vicinity portion, and a curved pipe portion connecting the upper end vicinity portion and the lower end vicinity portion. The inner diameter of the shooter 51 is substantially equal to the outer diameter of the molded product 18.

As a result, the molded product 18 dropped by the knockout rod 32 is not attached to the shooter 51.
Although it moves inside, the moving speed of the molded product 18 decreases due to friction with the inner surface of the shooter 51. Therefore, the molded product 18 stays inside the shooter 51 and is gradually accumulated.

As described above, in the present embodiment, the shooter 51 for accumulating the molded products 18 therein is used in place of the molded product stacking apparatus 40 of the first embodiment. The configuration of the device for integrating the trimming device is simplified, and the manufacturing cost and maintenance cost of the trimming device 10 can be reduced.

Next, a third embodiment of the present invention will be described. The description of the same structures and operations as those of the first and second embodiments will be omitted.

FIG. 7 is a side view of the trimming device according to the third embodiment of the present invention, and FIG. 8 is a side view of the trimming device according to the third embodiment of the present invention. 9 is a side view of a trimming device according to a third embodiment of the present invention, and FIG. 9 is a second diagram showing a method of moving a knockout device and a molded product stacking device. FIG. 10 is a front view of a knockout device and a molded product stacking device according to a third embodiment of the present invention, and is a cross-sectional view taken along the arrow B of FIG. 9.

In FIG. 7, 54 is an upper punching blade mounting member mounted on the lower surface of the upper table 12, 55 is an upper punching blade mounted on the lower surface of the upper punching blade mounting member 54, and 56 is A lower punching blade mounting member mounted on the upper surface of the lower table 14 and 57 are lower punching blades mounted on the upper surface of the lower punching blade mounting member 56. In this embodiment, in order to cut the molded product 18, an upper punching blade 55 and a lower punching blade 57 are used instead of the push-cutting blade 13a and the contact plate 15 of the first embodiment. . In addition, the belt conveyor 47 longer than the belt conveyor 47
Use a.

In this case, an opening is formed in the upper punching blade mounting member 54 and the upper punching blade 55 so that the knockout rod 32 can pass therethrough. Also,
An opening is formed in the lower punching blade attachment member 56 and the lower punching blade 57 so that the trimmed molded product 18 can be dropped.

The knockout device 30 is slid along the slide rail 35 attached to the upper part of the device main body 11 via the slide member 34, and reaches right above the upper table 12. Therefore, the knockout rod 32 can enter into the openings of the upper punching blade attachment member 54 and the upper punching blade 55. On the other hand, the molded product stacking device 40 is moved to a position directly below the lower table 14, and the elevating table 41 reaches directly below the openings of the lower punching blade mounting member 56 and the lower punching blade 57. There is.

As a result, the molded product 18 cut by the upper punching blade 55 and the lower punching blade 57 is dropped by the knockout rod 32, and the lifting table 4 is moved.
Integrated on 1. In the first embodiment, when the molded product 18 is cut by the push-cut blade 13a, a part of the molded product 18 is left uncut, and the slight uncut portion 28 causes the molded product 18 to become a resin sheet 17. Although they are connected, in the present embodiment, when the molded product 18 is cut by the upper punching blade 55 and the lower punching blade 57, a part is left uncut to leave the uncut portion 28. It need not be formed.

Next, a method for moving the knockout device 30 and the molded product stacking device 40 will be described. In addition,
The knockout device 30 and the molded product stacking device 40 are moved when the operation of the resin sheet molding line is stopped.

First, the push-cut blade supporting member 13 to which the push-cut blade 13a is attached is removed from the upper table 12,
The plate 15 is removed from the lower table 14 and the belt conveyor 47 is removed. Then, as shown in FIG.
The knockout rod 32 is removed from the mounting member 31b. Then, the upper table 12 is moved downward.

Subsequently, as shown in FIG. 9, the knockout device 30 is moved to a position directly above the upper table 12, and the molded product stacking device 40 is moved to a position directly below the lower table 14. Here, in the present embodiment, the tightening device is attached to the slide rail 35, and the tightening handle 62 of the tightening device is rotated to slide the knockout device 30 that slides along the slide rail 35. The member 34 can be fixed in place.

Therefore, when the knockout device 30 is moved, the operator is required to move the resin sheet 1 of the device body 11.
The tightening handle 62 attached to the position projecting to the downstream side in the transport direction of 7 is manually rotated to release the tightening, so that the slide member 34 can move with respect to the slide rail 35. Then, after the knockout device 30 is moved to just above the upper table 12, the tightening handle 62 attached near the center of the device body 11 is rotated by hand to tighten the slide member 34. Fixed against.
Since a scale 61 is attached to the slide rail 35 in the vicinity of the tightening handle 62, the operator uses the scale 61 to accurately adjust the position of the knockout device 30. be able to.

Further, the tightening device is also attached to the slide carriage 43 to which the molded product collecting device 40 is attached,
By rotating the tightening handle 64 of the tightening device, the slide carriage 43 can be fixed at a predetermined position with respect to the device body 11. Then, as shown in FIG. 10, since a scale 63 is attached in the vicinity of the tightening handle 64 of the apparatus main body 11, the operator uses the scale 63 to operate the molded product stacking apparatus 40. The position can be adjusted accurately.

Subsequently, a belt conveyor 47a, which is longer than the belt conveyor 47, is arranged downstream of the molded product stacking apparatus 40 in the resin sheet conveying direction, and the upper table 1
On the lower surface of 2, the upper punching blade mounting member 54 and the upper punching blade 55
And the lower punching blade mounting member 56 and the lower punching blade 57 are mounted on the upper surface of the lower table 14. As a result, as shown in FIG. 7, the knockout device 30 is located right above the upper table 12, and the molded product stacking device 40 is provided.
Is located directly below the lower table 14 and has an upper punching blade 55.
It can be applied when trimming the molded product 18 with the lower punching blade 57.

As described above, in this embodiment, when the upper punching blade 55 and the lower punching blade 57 are used instead of the push-cutting blade 13a and the contact plate 15 of the first embodiment. Also, the knockout device 30 and the molded product stacking device 40 can be used. Therefore, the trimming device 10
Can be applied to trimming under various conditions, and the manufacturing cost of the molded product 18 can be reduced.

The present invention is not limited to the above-mentioned embodiments, but can be variously modified within the scope of the present invention, and they are not excluded from the scope of the present invention.

[0081]

As described in detail above, according to the present invention, in the trimming device, there is provided a device main body having a cutting device for cutting a molded product formed on the resin sheet, and the resin sheet in the conveying direction. A knockout device for positionally adjusting in the range from the cutting device to the downstream side of the device main body, for punching out the molded product from the resin sheet, and the cutting device in the conveyance direction of the resin sheet from the device main body. And a stacking device that is arranged so that its position can be adjusted in the range to the downstream side and that stacks the molded products punched from the resin sheet.

In this case, it is possible to deal with the case where the interval between the molded products molded on the resin sheet is changed, and
The present invention can be applied to trimming a molded product with a push-cut blade and to trimming a molded product with an upper punching blade and a lower punching blade, thus reducing the manufacturing cost of the molded product.

In another trimming device, the cutting device is provided with a push-cutting blade for cutting the periphery of the molded product while leaving an uncut portion, and the knockout device and the stacking device are the device main body in the conveying direction of the resin sheet. Is disposed on the downstream side of.

In this case, when the molded product is cut by the push-cut blade, a part of the molded product is left uncut and the molded product is separated from the resin sheet and accumulated by the knockout device arranged on the downstream side. It is possible to use inexpensive push-cut blades and to accumulate molded products without requiring manpower.

In still another trimming apparatus, the apparatus body is provided with a supporting member to which a punching table having a through hole for the molded product is detachably attached and whose position can be adjusted in the resin sheet conveying direction. Prepare for the downstream side.

In this case, even when the type of the molded product is changed and the size, shape, arrangement, interval, etc. of the molded product formed on the resin sheet are changed, it is possible to easily change to the corresponding punching table. The position of the changed punching table can be easily adjusted.

In still another trimming device, the cutting device includes an upper punching blade and a lower punching blade for completely cutting the periphery of the molded product, and the knockout device and the stacking device convey the resin sheet. Is located at the position of the cutting device in the direction.

In this case, the trimming device can be applied to trimming under various conditions, and the manufacturing cost of the molded product can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a trimming device according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram of a conventional trimming device.

FIG. 3 is a side view of a punching table according to the first embodiment of the present invention.

FIG. 4 is a plan view of the punching table according to the first embodiment of the present invention, which is a view taken in the direction of arrow A in FIG.

FIG. 5 is a plan view showing changes in the state of the resin sheet according to the first embodiment of the present invention.

FIG. 6 is a side view of a trimming device according to a second embodiment of the present invention.

FIG. 7 is a side view of a trimming device according to a third embodiment of the present invention.

FIG. 8 is a side view of a trimming device according to a third embodiment of the present invention, and is a first diagram showing a method of moving a knockout device and a molded product stacking device.

FIG. 9 is a side view of the trimming device according to the third embodiment of the present invention, and is a second diagram showing a method of moving the knockout device and the molded product stacking device.

FIG. 10 is a front view of a knockout device and a molded product stacking device according to a third embodiment of the present invention, and is a cross-sectional view taken along the arrow B of FIG.

[Explanation of symbols]

10 Trimming device 11 Device body 12 Upper table 13a Pressing blade 14 Lower table 17 Resin sheet 18 molded products 28 Leftover part 30 knockout device 36 Support arm members 37 punching table 37a passage hole 40 Molded product stacking device 41 Lifting table 51 shooter 55 Upper punching blade 57 Lower punching blade

Claims (6)

[Claims] 1. A range from (a) a device main body including a cutting device for cutting a molded product molded into a resin sheet, and (b) a range from the cutting device to a downstream side of the device main body in a conveying direction of the resin sheet. And a knockout device for punching the molded product from the resin sheet, and (c) position adjustment in the range from the cutting device to the downstream side of the device body in the conveying direction of the resin sheet. And a stacking device for stacking the molded products punched from the resin sheet. 2. The cutting device includes a press-cutting blade that cuts the periphery of the molded product while leaving an uncut portion, and the knockout device and the stacking device are arranged on a downstream side of the device main body in a conveying direction of the resin sheet. The trimming device according to claim 1, which is provided. 3. The apparatus main body is provided with a support member, to which a punching table having a through hole for the molded product is detachably attached and whose position can be adjusted, on the downstream side in the transport direction of the resin sheet. The trimming device according to 1 or 2. 4. The trimming device according to claim 1, wherein the stacking device includes a lifting table for stacking the molded products. 5. The trimming device according to claim 1, wherein the stacking device includes a shooter that stacks the molded products therein. 6. The cutting device comprises an upper punching blade and a lower punching blade for completely cutting the periphery of the molded product, and the knockout device and the stacking device are provided with the cutting device of the cutting device in the conveying direction of the resin sheet. The trimming device according to claim 1, which is disposed at a position.