JPH05293569A - Blanked member automatic accumulating device - Google Patents

Abstract

PURPOSE:To obtain a blanked member automatic accumulating device where the correct accumulation of the blanking members is possible not only in the normal blanking operation but also in the high-speed blanking operation, the number of the parts is small, the constitution is simple and the manufacturing cost is low. CONSTITUTION:Blanked members W which are blanked from a material W' to be worked for working products by a press machine 2 are stacked and accumulated along a guide rod 8 of an elevatable magazine 3 at the lower side of a lower die D of the press machine 2, and the magazine 3 where the blanked members W are accumulated are successively carried forward through a carrying device 5, and at the same time, the empty magazines 3 supplied by the carrying device are successively supplied to the lower side of the lower die D through the carriage driving device 4. A locking projecting part 8a is provided to the guide rod 8, and at the same time, an engaging recessed part 22a where the locking projecting part 8a of the guide rod 8 is engaged with the lower part of the lower die D.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blank material automatic stacking apparatus capable of automatically stacking punched plates (hereinafter referred to as blanks) at high speed for processing products by a press machine.

[0002]

2. Description of the Related Art Conventionally, when blanks are punched from a coil material or the like, when blanks are further processed in the next process in a state where the blanks are piled up in a tray or the like, the materials are sorted. Therefore, it was necessary to assemble them and to arrange the blanks in the same direction.

Therefore, in order to address this problem, Japanese Patent Laid-Open No. 58-58
An apparatus has been invented as described in Japanese Patent Publication No. 329-329. This device is provided with an elevating and lowering device arranged below the processing position of the press machine, and pushes a magazine for accumulating materials to the position of the elevating and lowering device at one side position of this elevating and lowering device appropriately. A magazine pushing device is provided and a tilted passage for transferring the magazine to the next step is provided at the other side position of the elevating and lowering device, and the elevating and lowering device pushes up the magazine. It is characterized by being equipped with a flexible magazine support rod and a material support rod that can support the materials accumulated in the magazine so that it can be moved up and down. Indeed, the blanks punched by the material support rod were received as they were and accumulated. By moving the blanks to the magazine, the materials can be prevented from falling into the magazine in a random manner, and the materials can be neatly stored in the magazine. Therefore, the directionality of the material is kept constant, and when the material is processed in the next process, it is only necessary to take out the material from the magazine, and it is not necessary to align the directionality of the material again.

[0004]

However, in this apparatus, the blank material punched out in the gap between the lower mold and the support rod is not aligned, and this causes the blank material to be misaligned in the middle of the magazine during stacking of the blank materials in the magazine. There is a risk that the blank material may be caught at an angle and normal blank materials may not be accumulated. This is especially noticeable in the case of stacking blanks punched at high speed. That is, the supporting rod supporting the blank material has a lower descending speed corresponding to the blank material punched at a high speed, and the friction between the blank material partially stacked on the supporting rod and the regulation rod of the magazine causes The blank material is slower than the lowering speed of the support rod, and as a result, the stacking posture of the blank material collapses, and the blank material may be jammed during the stacking in the magazine, which may prevent normal stacking of the blank material. Further, the number of parts constituting the apparatus is large, such as the need for a supporting rod, the mechanism is complicated, and the manufacturing cost is high.

The present invention has been made against the background of the above-mentioned conventional technical problems. Normal blanking allows normal blanks to be accumulated even during high-speed blanking work, and the number of parts is small. It is an object of the present invention to provide a blank material automatic stacking device configured by a simple mechanism and having a low manufacturing cost.

[0006]

The present invention has been made in order to achieve the above-mentioned object, and the gist thereof is to provide a blank material punched from a material to be processed by a press machine for processing a product to a lower metal of the press machine. The magazines stacked up and down along the guide rod of the magazine that can be moved up and down under the mold are sequentially carried out through the carry-out device, and the empty magazines supplied by the carry-in device are carried by the carrying drive device. In the blank material automatic stacking device which is sequentially supplied below the lower die via the guide rod, the engaging protrusion of the guide rod is engaged with the lower die while the engaging protrusion is provided on the guide rod. The blank material automatic stacking device is characterized in that an engaging recess is provided.

[0007]

[Function] A blank material punched out from a material to be processed by a press machine is stacked and accumulated on a guide rod of a vertically movable magazine under a bed of the press machine, and the magazine after the blank material is accumulated is formed on the bed. The paper is sequentially carried out from below via the carrier device, and empty magazines are sequentially supplied below the bed via the carrier device. The magazine, which has been raised to collect the punched blanks, is fitted so that the engaging projection of the guide rod is guided to the engaging recess of the lower die. The magazine is positioned at a position directly below the magazine drop by engagement and locking with the engaging recess, and the blank material is collected along the guide rod in the magazine immediately after the blank material is dropped.
The magazine in which such blank materials are accumulated is sequentially transported to the next step via the transport device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIGS. 1 and 2 are a plan view and a front view of the blank material automatic stacking apparatus of the present invention, in which the arrow A indicates the magazine supply direction, and the arrow B indicates the magazine transport path. The arrow with the symbol C indicates the direction in which the magazine is carried out.

The carry-in conveyor 1 serving as a carry-in device arranged in the magazine supply direction (i) is located at the rear of the press machine 2, and is driven by a drive roller conveyor having magazines 3 mounted on a plurality of rollers 1a. Become. The magazine transport path (b) is a transport drive conveyor 4 which is a transport drive device arranged below the press machine 2 from the rear side to the front side of the press machine 2.
Consists of. The carry-out conveyor 5, which is a carry-out device arranged in the magazine carry-out direction C, is located in front of the press machine 2 and is composed of the same driving roller conveyor as that arranged in the magazine supply direction a.

The magazine 3 has a quadrangular base plate 6 as a base, a rod base 7 fixed at four corners thereof, and four guide rods 8 planted on the rod base 7. The four guide rods 8 are rod-shaped bodies, and these four rod-shaped bodies surround the circular blank material W along the outer periphery thereof, and stack and stack a plurality of blank materials W along the forming direction of the guide rods 8. It is supposed to do.
Further, the tip end of the guide rod 8 has a conical cross-sectional shape and forms a pointed locking projection 8a, which fits into an engagement recess 22a formed in the lower portion of a lower mold D, which will be described later. It is like this.

Locking claws 4a and 4b corresponding to the shape and size of the base plate 6 of the magazine 3 are fixed to the chain 4c at appropriate intervals on the transport drive conveyor 4 in the magazine transport path B. The magazine 3 supplied from the carry-in conveyor 1 arranged in the supply direction a is conveyed below the processing center of the press machine 2 so that the locking claws 4a and 4b sandwich it.

Below the processing center of the press machine 2, that is, below the lower die D, a magazine elevating device 10 is provided. This magazine lifting device 10 is provided with a guide body 1 described later.
A plurality of guide rollers 1 that can slide up and down along 5
1, a lift guide 12 rotatably pivoting the guide rollers 11, a magazine support 13 formed horizontally along the forming direction of the lift guide 12, and a lift guide 12 capable of moving up and down. It is composed of a fixing member 14 which is fixed to a lifting / lowering drive chain 17 which will be described later so as to be supported.

The guide body 15 is similar to the reinforcing bracket 16 fixedly mounted on the body frame 2a.
It is attached to a fixed bracket 16a fixed to a, and forms a vertical sliding guide of the guide roller 11. The lifting / lowering drive chain 17 is stretched over a sprocket 18 mounted on the fixed bracket 11 and a sprocket 19 mounted on the frame 4d of the transfer drive conveyor 4, and the lifting / lowering guide is provided via the fixing member 14. 12 can be raised and lowered.

A bolster 20 is attached to the bed 2b of the press machine 2, a die plate 21 is mounted on the bolster 20, a backing plate 22 is mounted on the bolster 20, and a die 23 is mounted on the backing plate 22 to mount the lower mold D. I am configuring. Further, the bolster 20 and the die plate 21 are formed with rectangular blank drop holes 24 having different diameters so that the four guide rods 8 can be projected and retracted, while the backing plate 22 and the die 23 are provided with the blank material W. Is provided with a circular blank drop hole 24 'having a diameter capable of being punched out. Then, on the lower surface of the backing plate 22, the guide rod 8 is formed along the edge of the blank drop hole 24 '.
The engaging projections 8a are engaged with four engaging recesses 22a, and the four guide rods 8 are engaged and locked in the engaging recesses 22a so that the entire magazine 3 is dropped onto the backing plate 22 as a blank. The hole 24 'is located directly below. The engagement recess 22a is formed to have a smaller diameter than the outer diameter of the guide rod 8, and the four guide rods 8 are provided.
The four guide rods 8 are formed so as to face the blank drop hole 24 ′ when engaged with the engaging recess 22 a.

Although the number of guide rods 8 of the magazine 3 is four, the number is different depending on the shape of the blank material W, and at least three guide rods 8 are preferable. Similarly, the number of engaging recesses 22a on the lower surface of the backing plate 22 also differs depending on the shape of the blank material W. In the above configuration, when the magazine 3 on the transport drive conveyor 4 in front of the carry-in conveyor 1 becomes empty, the carry-in conveyor 1 is driven,
The magazine 3 on the carry-in conveyor 1 is transported in the supply direction B and is supplied to the transport drive conveyor 4. At this time, the locking claws 4a and 4b on the transport drive conveyor 4 are stopped at an interval at which the base plate 6 of the magazine 3 can be received,
The magazine 3 is locked by the driving of the carry-in conveyor 1
It is placed on the transport drive conveyor 4 so as to be sandwiched between a and 4b. The magazine 3 intermittently conveyed to the processing center position below the lower mold D of the press machine 2 by the conveyance drive conveyer 4 holds the base plate 6 from both sides by the magazine supporting portion 13 of the elevating guide 12 when the elevating device 10 is activated. Thus, it rises and separates from the locking claws 4a and 4b of the transport drive conveyor 4. When the elevating guide 12 reaches the upper limit position, the guide rod 8
Of the engaging convex portion 8c of the engaging concave portion 2 of the backing plate 22
Contact the 2a entrance. Base plate 6 is locking claw 4
Since it is free from a and 4b, the locking projection 8
While the entire magazine 3 is slightly moved according to the degree of engagement of a with the engaging recess 22a, the engaging projection 8a fits into the engaging recess 22a at the same time as the lifting guide 12 is lifted. At this time, the magazine 3 is located directly below the blank drop hole 24 '. Then, the guide rod 8 slightly faces the inside of the blank drop hole 24 ', and forms a system in which the blank materials W are accumulated while slidingly guided.

In the above-mentioned state, when the press machine 2 is operated to punch a blank material from the work material W ', the punched blank material W has a falling hole 2
4'falls under the magazine 3 while being slidably guided by the guide rod 8 located immediately adjacent to the blank rod W, and the blank materials W are regularly accumulated along the guide rod 8 one by one. Then, when a predetermined amount of blank material W is accumulated in the magazine 3, the magazine 3 descends between the locking pawls 4a and 4b of the transport drive conveyor 4 which stands by immediately below, and the base plate 6 of the magazine 3 again locks. It is placed between 4a and 4b, and is conveyed to the unloading conveyor 5 side by the conveyance drive conveyor 4. The magazine 3 that has reached the carry-out conveyor 5 is carried in the carry-out direction of the magazine 3 on the plurality of rollers 5 by the driving of the carry-out conveyor 5, and is also carried sequentially to the next step along with the blank material that has been fully loaded.

[0017]

As described above, according to the present invention, blanks punched from a material to be processed by a press machine are stacked along a guide rod of a vertically movable magazine below a lower die of the press machine. The magazines that have been stacked and the blank materials have been stacked are sequentially carried out through the carry-out device, and the empty magazines supplied by the carry-in device are sequentially supplied below the lower mold through the transport drive device. In the blank material automatic stacking device, since the engaging projection is provided on the guide rod and the engaging recess for engaging the engaging projection of the guide rod is provided on the lower portion of the lower die, the normal blanking is Normal blanks can be accumulated even during high-speed blanking work, and the number of parts is small and the mechanism is simple, so the manufacturing cost is kept low. It can be to the valence.

[Brief description of drawings]

FIG. 1 is a plan view showing the entire blank material automatic stacking device.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view showing the lifting device in an enlarged manner.

FIG. 4 is a partially sectional front view of FIG.

[Explanation of symbols] 1 carry-in conveyor 1a roller 2 press machine 2a main body frame 3 magazine 4 transport drive conveyors 4a, 4b locking claw 4c chain 4d frame 5 carry-out conveyor 6 base plate 7 rod base 8 guide rod 8a locking convex portion 10 magazine Lifting device 11 Guide roller 12 Lifting guide 13 Magazine support portion 14 Fixing member 15 Guide body 16a Fixing bracket 17 Lifting drive chain 18, 19 Sprocket 20 Bolster 21 Die plate 22 Backing plate 22a Engagement recess 23 Die 24, 24 'Blank drop Hole a Magazine supply direction b Magazine transfer route c Magazine carry out direction W Blank material D Lower mold W'Work material

Claims (1)

[Claims] 1. A blank material W punched from a work material W'for product processing by a press machine 2 is stacked and accumulated along a guide rod 8 of a vertically movable magazine 3 below a lower die D of the press machine 2. And the blank material W
The magazines 3 which have been accumulated are sequentially carried out through the carry-out device 5, and the empty magazines 3 supplied by the carry-in device 1 are sequentially supplied below the lower mold D through the transport drive device 4. In the blank material automatic stacking device, the guide rod 8 is provided with a locking convex portion 8a, and the lower die D is provided with an engaging concave portion 22a with which the locking convex portion 8a of the guide rod 8 is engaged. Blank material automatic stacking device characterized by