JPH042796Y2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Field of Industrial Application The present invention relates to a cut sheet conveyance machine for automatically conveying a formed sheet cut by a table press machine from the machine.

(b) Conventional technology Conventionally, for example, a method for manufacturing synthetic resin containers such as trays involves heating and softening a thermoplastic synthetic resin sheet, molding it using a molding machine, punching equipment,
The container is obtained by punching or cutting using a table press or the like. In particular, when using a table press to cut a molded sheet to obtain a container, it is possible to cut between each container molding part of the molded sheet with almost no waste, and the cutting can be done in a short time, making the work more efficient. is good. This platform press device is used to cut the molded sheet, and a cut sheet delivery machine is used to automatically transport the cut molded sheet.

(c) Problems that the invention aims to solve Conventionally, synthetic resin containers have often been rounded at the top four corners for reasons such as decorativeness, and as a result, small openings have been created between the resulting containers. can.

When the cut formed sheet is sucked and carried out by the carry-out machine, the cut formed sheet is carried out in the same state as a single sheet before cutting. However, since the part with the extraction margin is not suctioned during transport, the wind pressure applied to the formed sheet during transport makes it impossible to maintain the state as if it were a single uncut sheet, and the extraction margin comes off and scatters. This may cause problems such as falling into the container or onto the cutting die of the stand press machine. These removal allowances are
Since it has to be removed one by one, there is a disadvantage that workability becomes worse.

The present invention has been made in view of the above points, and an object of the present invention is to provide a cut sheet conveying machine that does not cause the cut sheet to scatter when conveying cut formed sheets, and has good work efficiency.

(d) Means for Solving the Problems In order to solve the above problems, the inventors of the present invention, as a result of intensive research, have designed at least the outer periphery of the bottom of the movable plate of the cut sheet delivery machine to correspond to the cutting part of the formed sheet. By providing a protrusion that protrudes at the position where the sheet is cut and prevents the cut sheet from scattering, which comes into contact with the cut portion of the sheet when the cut sheet is sucked, the cut sheet can be carried out with high work efficiency without the sheet being scattered. He discovered that it was possible to provide a machine and completed the present invention.

The present invention has a movable plate 6 which is vertically movable and slidable, and a suction rod 8 provided on the bottom surface 7 of the movable plate and which corresponds to at least a molded part formed on the cut sheet. The machine 4 has a protrusion 9 on at least the outer periphery of the bottom surface 7 of the movable plate, which protrudes in correspondence with the cutting part 3 of the formed sheet 1 and comes into contact with the cutting part 3 during suction to prevent the extraction margin from scattering. It is something that has been established.

(e) Effect The function of the present invention is as follows.

Cut formed sheet 1 on table press device 15
The movable plate 6 is lowered to the upper part, and the suction rods 8 corresponding to the respective container molding parts 2 come into contact with the container molding parts 2 of the cut molded sheet 1, and the projections 9 for preventing scattering are brought into contact with the container molding parts 2 of the cut molding sheet 1.
comes into contact with the cutting part 3 and sucks the cut molded sheet 1 with the suction rod 8 (at this time, each container molding part 2 of the cut molded sheet 1 and the extraction margins 23, 2
4 does not separate and maintains the same sheet-like state as the formed sheet before cutting. ).

When carrying out the molded sheet, the movable plate 6 rises to a predetermined position, slides and descends, but the cut molded sheet moves together with the movable plate because each molded part is suctioned by the suction rod. . At this time, the punching allowances 23 and 24 are connected to the forming portion 2 by the frictional force of the cut surfaces, and the formed sheet after cutting moves together with the movable plate while maintaining the shape of the formed sheet before cutting.

If the movable plate moves vertically or horizontally, there is a risk that wind pressure will be applied to the molded sheet from the top, bottom, left and right.
A protrusion 9 provided on the outer periphery of the bottom surface 7 of the movable plate blocks wind from entering between the molded sheet and the movable plate, and prevents wind pressure from acting on the upper surface of the cut molded sheet. Furthermore, the suction rods provided corresponding to each molding section and the protrusions provided at least on the outer periphery of the bottom of the movable plate contact the molded sheet and reliably support the cut molded sheet, so that the lower surface of the molded sheet The cut formed sheet can maintain the same shape as before cutting even when subjected to wind pressure from the left and right directions (the sheet is less likely to be distorted by wind pressure).
3 and 24 can be prevented from coming off the cut molded sheet and scattering.

(F) Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

As an embodiment of the cutting sheet delivery machine of the present invention, a molded sheet 1 having container molding parts as shown in FIG. 2 is placed between each container molding part 2 as shown in FIG. A cut sheet delivery machine used for cutting the cutting portion 3 (indicated by a dashed line) and transporting the cut formed sheet 1 will be described.

In FIG. 1, numeral 4 denotes a cut sheet delivery machine.
The unloader 4 includes a movable plate 6 that is movable up and down by a cylinder 5, a plurality of suction rods 8 provided on the bottom surface 7 of the movable plate, and protrusions 9 for preventing scattering of the extraction margin.
is provided on the top of cylinder 5, and cylinder 1
Slide plate 1 moving on rail 11 by 0
It is composed of 2.

In the figure, 26 is a reed switch that controls the vertical movement of the cylinder 5, and 13 is a formed sheet carry-in machine connected to the cut sheet carry-out machine 4, which supplies the formed sheet 1 from the positioning machine 14 to the table press device 15. It is something.

4 to 6 show a moving plate 6. Five rows of suction rods 8 are protruded from the bottom surface 7 of the moving plate 6 in both vertical and horizontal directions, and each suction rod 8 is hollow. The tip is spread out like a lapper tip, and the other end is converged inside the movable plate 6 and connected to a suction tube 16 connected to a compressor (not shown).

As shown in FIG. 4, around each suction rod 8, protrusions 9 in the form of a planar lattice are provided to prevent scattering of the extraction margin. The protrusion 9 can be provided by being attached to the movable plate 6 with an adhesive or the like, but it is also possible to provide it by other methods such as attaching it to the movable plate 6 with bolts, for example.

Each suction rod 8 is provided to protrude more than the protrusion 9 for preventing scattering of the removal area, and the difference between the protrusion width a of each suction rod 8 and the protrusion width b of the protrusion 9 for preventing scattering of the removal area. is configured to be equal to the difference in height between the internal bottom surface 17 of the formed sheet 1 and the top surface of the cutting section 3, and the movable plate 6 is lowered by the cylinder 5 and sucks the cut formed sheet 1 on the table press device 15. When doing so, each suction rod 8 touches the inner bottom surface 1 of the container forming part 2.
7, and the lower end of the protrusion 9 for preventing scattering of the extraction allowance is configured to abut on the upper surface 18 of the cut portion of the formed sheet 1.

The material of the protrusion 9 for preventing scattering of the extraction allowance is as follows:
For example, anything that is soft and has cushioning properties, such as sponge or soft rubber, can be used.

The operation of the cut sheet conveyor 4 configured as described above will be explained below.

In FIG. 1, the cutting blade 1 of the table press device 15 is shown.
9, after positioning so that the cut portion 3 of the formed sheet 1 is placed accurately, the formed sheet carrying machine 13
One of the formed sheets 1 is suctioned and placed on the cutting blade 19 of the stand press device 15.

FIG. 7 shows an example of a table press device 15, in which the device 15 is a cutting die 2 having a cutting blade 19.
0 reciprocates on the base 21, and when the cutting die 20 and the molded sheet 1 placed on the cutting blade 19 are inserted between the base 21 and the press plate 22, the press plate 2
2 presses the cutting die 20 and the molded sheet 1,
It is configured to cut the sheet 1. The molded sheet 1 placed on the cutting blade 19 is pressed onto the press plate 2
2, the molded sheet 1 is cut into a plurality of containers, a plurality of star-shaped cutouts 23, and a hollow rectangular cutout 24. On the cutting blade 19, each container and The blanking allowances 23 and 24 maintain the shape of the molded sheet 1 without being separated. After cutting the molded sheet 1, the cutting die 20 is placed on the base 2.
1, the cylinder 5 of the cut sheet carry-out machine 4 located at the front upper part of the base 21 is activated, the movable plate 6 is lowered, and each suction rod 8 moves into each container 25 as shown in FIG. It comes into contact with the internal bottom surface 17 and descends to a position where the lower end of the protrusion 9 for preventing scattering of the extraction margin comes into contact with the upper surface 18 of the cut portion of the cut formed sheet 1, and then stops. Next, the cut formed sheet 1 is sucked by a compressor (not shown) through the suction pipe 16 and each suction rod 8, and at the same time the cylinder 5 is actuated and the movable plate 6 rises to lift the cut formed sheet 1. At this time, each removal allowance 2
3 and 24 are each container 25 due to the frictional force between the cut surfaces.
be lifted up with. In addition, since the cut portion 3 of the cut formed sheet 1 is in contact with the protrusion 9 for preventing the removal margin from scattering, even if the wind pressure due to rising is applied to the cut portion 3, the pressure is absorbed by the protrusion 9. As a result, each removal allowance 23, 24
There will be no inconvenience such as scattering and falling.

When the suction plate 6 rises to a predetermined position, the reed switch 26 operates to stop the rise, and then the cylinder 10 operates to move the slide plate 12 on the rail 11 to remove the cut formed sheet 1. The sheet is transported with the punching allowances 23 and 24 attached to the sheet.

Incidentally, in the above embodiment, the case where the table press apparatus 15 as shown in FIG. 3 and FIG. Needless to say, the machine can be used.

Further, in this embodiment, each suction rod 8 is provided in five rows and five rows, and protrusions 9 for preventing the extraction margin from scattering are provided in a grid pattern on the bottom surface 7 of the suction plate. The number of suction rods 8 is not limited to 1, and the number of suction rods 8 may be at least one at a position corresponding to a molding part such as the container molding part 2 of the cut molded sheet 1 that is sucked and lifted, and the number of suction rods 8 is sufficient to prevent scattering of the extraction margin. When absorbing the cut molded sheet 1, the shape of the protrusion 9 is such that it is located at a position corresponding to the cut portion 3 of the cut molded sheet 1 on at least the outer periphery of the bottom surface of the movable plate and in contact with the upper surface 18 of the cut portion. Any shape is possible as long as they are in contact with each other, and in this embodiment, projections 9 for preventing scattering of the cutting part 3 are provided on the entire surface of the cutting part 3.
However, it is also possible to make contact only with the main parts of the cutting part 3, such as only with the star-shaped cutout 23 and the cut part on the outer periphery. Any shape or configuration is possible without changing the gist of the invention.

(G) Effect The present invention provides a cut sheet conveyor having a movable plate that is vertically movable and slidably provided, and a plurality of suction rods provided on the bottom surface of the movable plate. This cut sheet delivery machine is provided with a protrusion on at least the outer periphery of the molded sheet that protrudes in correspondence with the cut portion of the molded sheet and that comes into contact with the cut portion during suction to prevent scattering of the cut sheet. Accordingly, wind entrainment from between the molded sheet and the bottom surface of the movable plate is blocked by the protrusion provided on the bottom surface of the movable plate, and wind pressure applied to the top surface of the molded sheet can be prevented. Furthermore, by providing a suction rod corresponding to the molding section and by providing a protrusion on at least the outer periphery of the bottom of the movable plate that comes into contact with the cut section of the molded sheet, the entire molded sheet is reliably supported and the molded sheet is transported out. Even if wind pressure is applied from the lower surface side or from the left and right directions, the cut formed sheet can be maintained in the same sheet-like state as the formed sheet before cutting.

As a result, due to frictional force, the punching margin is moved together with the movable plate and carried out together with each container molding part in the same state as a sheet before cutting, and the punching margin is scattered on the table press during the conveyance. This prevents the molded sheet from falling into the container.
It is possible to prevent the scattered punching allowance from falling onto the table press or inside the container of the formed sheet, and it eliminates the need to remove the scattered punching allowance from the table press or inside the container, improving work efficiency. has.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of essential parts of an embodiment of the cut sheet conveyor of the present invention, and FIG. 2 is a perspective view of an example of a formed sheet.
FIG. 3 is a perspective view of the main part showing the cut part of the molded sheet;
Fig. 4 is a bottom view showing an embodiment of the suction plate, Fig. 5 is a front view of the suction plate, Fig. 6 is a side view of the suction plate, and Fig. 7 is a perspective view showing an example of the table press device. FIG. 8 is a longitudinal sectional view showing a state in which the suction plate has been lowered and is in contact with the cut sheet. DESCRIPTION OF SYMBOLS 1... Formed sheet, 3... Cutting section, 4... Cutting sheet carry-out machine, 6... Moving plate, 7... Bottom surface of moving plate, 8... Suction rod, 9... Protrusion for preventing scattering of removal area.

Claims (1)

[Scope of utility model registration request] In a cut sheet conveyor having a movable plate that is vertically movable and slidably provided, and a suction rod provided on the bottom surface of the movable plate and corresponding to at least a molded part formed on the cut sheet, the above-mentioned A cut sheet delivery machine, characterized in that a projection for preventing scattering of the extraction margin is provided on at least the outer periphery of the bottom surface of the movable plate in a manner that corresponds to the cut portion of the formed sheet and comes into contact with the cut portion during suction. .