JPH0822480B2 - Chain device for feeding material in press - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chain device attached to a press machine for loading and unloading materials into and from the press machine.

[0002]

2. Description of the Related Art For example, a synthetic resin sheet is used as a material to be pressed, and the sheet is made of a synthetic resin sheet in a press work for punching or trimming after pressure-pressing or vacuum forming the sheet. It is constructed so that it can be carried in between the upper and lower molds by sandwiching the end edge of, and the finished product can be carried out, and a large number of various products such as so-called trays and cups can be continuously pressed. There is. In this case, what is important is at which position of the press machine that performs such press working, the material, that is, the material to be pressed, is loaded and unloaded, that is, how the pass line of the material is set.

The pass line is determined by the structure of the press machine itself or the state of the mold used in the press machine. Not only can it not be placed at a predetermined position between the molds and a product conforming to the standard cannot be produced, but also the finished product may be distorted due to residual unnecessary internal stress. Also,
The material may not be smoothly loaded and unloaded.

In order to correctly feed the material to such an important pass line, conventionally, as one example, adjustment has been performed by a die of a press machine. In other words, if the pass line is constant due to the structure of the press, it is assumed that the shape of the upper and lower dies allows for the pass line, but it is very difficult to produce dies under such restrictions. That is why. Also, as another method, the mold is attached via a spacer,
It has been attempted to adjust the position with respect to the pass line, but in this case not only spacers of various thicknesses must be prepared at all times, but also the mounting work for the press machine is very troublesome. It had become something like that.

Therefore, the inventor of the present invention is able to freely and easily adjust such a material feeding pass line so as to simplify the production of the mold and eliminate the spacer replacement work. As a result of various studies on what to do, the present invention has been completed.

[0006]

The present invention has been made in order to cope with the above-mentioned actual situation, and the problem to be solved is to facilitate adjustment of pass lines. And
An object of the present invention is to provide a chain device having a simple structure in which the position of the pass line of the press machine can be easily adjusted and the material can be smoothly carried in and out of the press machine. Especially.

[0007]

Means for Solving the Problems In order to solve the above problems, the means of the present invention will be described with reference to the reference numerals used in the embodiments. On the other hand, in a chain device 20 attached to a press machine 10 for performing press working and carrying in and out of the material to and from the press machine 10 by sandwiching its edge, the chain device 20 is driven by a drive device 23. The holding chain 21 that is conveyed and driven, the storage support 22 that is movably accommodated and is arranged in a state of linearly extending in the front and rear of the press machine 10, and the front and rear of the storage support 22 are supported. And a position adjusting device 24 for vertically moving the pressing device 10 with respect to the pass line L of the press machine 10, and the overall position of the chain device 20 with respect to the pass line L is adjusted by the position adjusting device 24. Is therefore the chain 20, characterized in that the adjustable ".

[0008]

Next, the operation of the chain device 20 according to the present invention constructed as described above will be described in detail with reference to the drawings. First, the sandwiching chain 21 that sandwiches and conveys the edge of the material is supported by the storage support 22 supported on the base 15 side of the press 10 so as to correspond to the pass line L of the press 10. , This storage support 2
The driving device 23 provided on the second driving device 23 rotates in a fixed direction. The front and rear (left and right in FIG. 1) portions of the storage support 22 are supported by the respective support plates 25, and by moving the support plates 25 up and down by the position adjusting device 24, the inside of the storage support 22 is The moving position of the sandwiching chain 21 is adjusted.

That is, when the drive shaft 24a constituting the position adjusting device 24 is rotated in a fixed direction by its handle or the like, the worm gear 24b meshed with the drive shaft 24a rotates. , The worm gear 24b is rotated by rotating the worm gear 24b.
The screw advance / retreat shaft 24c, which is screwed to, moves up and down with respect to the base 15 and the like of the press 10. This screwing shaft 2
Since the above-mentioned support plate 25 is connected to the upper end of 4c, this support plate 25 is moved along with the vertical movement of the screw advance / retreat shaft 24c.
Moves up and down, and the storage support 22 integrated with the support plate 25 moves up and down. This is the same for each support plate 25 before and after the storage support 22, whereby the storage support 22 moves up and down while maintaining its horizontal state, and is clamped to the pass line L of the press 10. The position of the chain 21 is optimized.

In this case, on the present embodiment side, a plurality (4 in the embodiment) of the support plate 25 located on the left side of FIG.
The screw advancing / retreating shafts 24c are connected to each other, and these screw advancing / retreating shafts 24c can move the support plate 25 evenly, that is, vertically by the rotation of one drive shaft 24a. It is linked via a gear or the like (not shown). Also,
The support plate 25 on the left side and the support plate 25 on the right side in FIG.
The 4a are interlocked with each other, for example, by connecting with a chain.

As described above, since the storage support 22 of the sandwiching chain 21 is movable up and down with respect to the base 15 of the press machine 10, the sandwiching / conveying position of the material by the sandwiching chain 21 is as shown in FIG. 2 or as shown in FIG. 3, it can be freely supported. That is, in FIG. 2, the cutting blade 13a for trimming the material on the upper table side is shown.
The press machine 10 in the case where the cutting blade 13a is provided is shown. When such a cutting blade 13a is used, the pass line L has to be at a position lower than usual, but in such a case, the position adjusting device is used. Chain sandwiched by 24
Should be moved down. Similarly, FIG. 3 shows the press machine 10 in which the cutting blade 13b is provided on the lower table side. In this case, the pass line L must be at a position higher than usual, but in that case, the position adjusting device 24 is used. Therefore, the holding chain 21 may be moved upward.

That is, by adopting the chain device 20 having such a position adjusting device 24, it becomes possible to freely set the pass line L, whereby the upper mold 11 and the lower mold 12 themselves are manufactured. Is also free to do. Moreover, since the spacer, which has been necessary in the past, is completely unnecessary, it is natural that the mounting and conversion work thereof is completely unnecessary.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the chain device 20 according to the present invention will be described in detail according to the implementation side shown in the drawings. FIG.
A side view of is shown. The press machine 10 has an upper mold 11 and a lower mold 12 supported at the center thereof.
By moving the 1 and the lower die 12 with respect to the pass line L, the material is carried in between and the material is subjected to a predetermined press working. Further, in this press machine 10, its base 15 is configured to extend in front of and behind the upper die 11 and the lower die 12 (left and right in FIG. 1). The upper mold 11 and the lower mold 12 used in the press machine 10 are of course replaced by those suitable for the product, and as shown in FIGS. 2 and 7, for trimming the material. The cutting blade 13a is provided on the upper mold 11 side, and the cutting plate 1 with which the cutting blade 13a abuts
4 is provided on the lower mold 12 side. As shown in FIGS. 3 and 8, the cutting blades 13a and the contact plates 14 may be mounted upside down.

The press machine 10 has a chain device 20 according to the present invention for carrying the material between the upper mold 11 and the lower mold 12 and discharging the material from between the upper mold 11 and the lower mold 12. The chain device 20 has a holding chain 21 for carrying out the material. As shown in FIG. 4, FIG. 7, or FIG. 8, the holding chain 21 has a general shape, and has a structure capable of moving while holding the end edge of the material. Needless to say, the holding chain 21 is, so to speak, an endless chain, and as shown in FIG.
It moves up and down with 2.

The storage support 22 is formed as an elongated member extending in the front and rear of the press machine 10, and both front and rear ends thereof are supported by front and rear support plates 25. As shown in FIG. 1, the storage support 22 of the present embodiment is provided with a drive device 23 for driving the holding chain 21 on the right side of the drawing.
Is designed to move up and down together with the storage support 22.
The position adjusting device 24 moves the supporting plates 25 up and down.

The position adjusting device 24 is shown in FIG. 1, FIG. 4 and FIG.
As shown in FIG. 5, the worm gear 24b is provided on the base 15 on the press machine 10 side and has a drive shaft 24a which is rotated by a handle or the like. The rotation of the drive shaft 24a causes the worm gears 24b to rotate synchronously. It is supposed to be done. That is, the support plate 25 on the front side of the press machine 10 is shown in FIG.
As shown in FIG. 6, a plurality of screw advance / retreat shafts 24c are supported on the base 15 on the press machine 10 side, and each of the screw advance / retract shafts 24c is in the same direction by the drive shaft 24a described above. They are respectively screwed into the worm gears 24b that are rotated. As a result, the support plate 25 is supported horizontally by the respective screw advance / retreat shafts 24c and is vertically movable by the respective screw advance / retract shafts 24c.

On the other hand, the support plate 25 located at the rear of the press 10 is supported by two screw advance / retreat shafts 24c, and these screw advance / retract shafts 24c are driven by one drive. Rotation of the shaft 24a causes another forward screw-in / out shaft 24c.
It is configured to move up and down in synchronization with the above. Thus, the reason why the support plate 25 on the rear side is supported relatively easily is that the structure of the storage support 22 on the rear side is relatively simple.

In this embodiment, the drive shaft 24a
Although an example in which the drive shaft is rotated by the handle is shown, the drive shaft 24a may be rotationally driven by a motor or the like. Further, as the means for synchronizing the vertical movements of the respective screw advancing / retreating shafts 24c with each other, not only the case where the worm gear 24b is adopted, but also other means such as directly driving the motor may be used.

[0019]

As described above in detail, in the present invention,
As illustrated in the above embodiment, the storage support 22 of the sandwiching chain 21 is supported by the position adjusting device 24 so as to be vertically movable, and the material conveying position by the sandwiching chain 21 can be adjusted with respect to the required pass line L. Because,
The position of the pass line of the press machine can be easily adjusted, and a chain device that can smoothly carry the material in and out of the press machine can be provided with a simple configuration.

[Brief description of drawings]

FIG. 1 is a side view of a press using a chain device according to the present invention.

FIG. 2 is a front view schematically showing the relationship between a press machine, an upper mold, a lower mold, and a holding chain.

FIG. 3 is a front view schematically showing another relationship between the upper and lower dies of the press machine and the holding chain.

FIG. 4 is a partially enlarged front view of a pressing machine showing the position adjusting device according to the present invention.

FIG. 5 is a front view showing another portion of the position adjusting device.

FIG. 6 is a cross-sectional view taken along the line of the press machine of FIG.

FIG. 7 is a partially enlarged cross-sectional view showing a relationship with a holding chain when a cutting blade is provided on the upper die.

FIG. 8 is a partially enlarged cross-sectional view showing a relationship with a holding chain when a cutting blade is provided on a lower die.

[Explanation of symbols]

 10 Press Machine 11 Upper Die 12 Lower Die 15 Base 20 Chain Device 21 Clamping Chain 22 Storage Support 23 Drive Device 24 Position Adjusting Device 24a Drive Shaft 24b Worm Gear 24c Screw Screw Retracting Shaft 25 Support Plate

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65G 43/00 E

Claims (1)

[Claims] 1. A chain device attached to a press machine for press-working a material between upper and lower dies, for carrying in and carrying out the material to and from the press machine by sandwiching its edge. The chain device includes a holding chain that is driven and driven by a drive device, a storage support that stores the chain in a movable manner and that is arranged in a state of linearly extending in front of and behind the press machine, and a storage support of the storage support. And a position adjusting device for supporting the front and rear and vertically moving the same with respect to the pass line of the press machine, and the entire position of the chain device with respect to the pass line can be adjusted by the position adjusting device. A chain device characterized by