JPH08168846A - Dent preventing device for horizontal multistage forging machine - Google Patents

Abstract

PURPOSE: To transport a product discharged from the last die of a horizontal multistage forging machine, without causing a dent, and to store it in a product box. CONSTITUTION: A chuck 7e for transferring a product is provided which holds a product X discharged from the last die 4d and which, after transferring it in the horizontal direction, releases it outside the last forging station; and a product transporting device 10 is also provided which, after receiving the released product X in a receiving base 15 arranged immediately below the releasing position, horizontally transports it to the outside of a forging machine 1 by the driving of a net conveyor 14. The device is structured such that at the end part of the net conveyor 14, a guide member 16 is provided which has a semicircular notch 17a; that the placed product X is thereby retained without randomly falling at the time of inclining and reversing of the receiving base 15 at the end part; and that the product is then dropped and discharged from the lower end point of the notch 17a, so that it is aligned and stored in the product box 26 arranged immediately below the end point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dent preventive device for a horizontal multi-stage forging machine for forming a blank roughly to finely by a plurality of forging stations each comprising a die and a punch. The present invention relates to a dent preventive device that prevents dents from entering the product during discharge.

[0002]

2. Description of the Related Art A horizontal multi-stage forging machine for molding bolts, nuts, and various other parts is used to coarsely and gradually blank blanks at a plurality of forging stations each having a die and a punch facing each other. In general, this type of forging machine is equipped with a transfer chuck that grips the blank and transfers it between forging stations, and this chuck grips the blank processed in the forging station in the previous stage and It is designed to be sent to a forging station.

In this case, as shown in FIG. 8, in the chuck, a pair of left and right chuck arms B and B having chuck claws A at the lower end are attached to a pair of left and right chuck arm mounting shafts C and C. , A link D is connected to the intersecting portion in a state where the chuck arms B and B are crossed, and the chuck D is moved up and down in the direction of arrow d to open and close the chuck arms B and B in the direction of arrow e, It is configured so that the blank or the product X can be held and released.

By the way, when the product ejected from the die (final forming die) of the final forging station is dropped and discharged as it is, the product hits a punch or the like and has a dent, so that the final forming is performed as shown in FIG. It has been attempted to transfer the product X discharged from the die using the chuck, drop the product X on the chute E, and send the product X to a predetermined place such as a product box.

[0005]

However, in the case of the horizontal multi-stage forging machine, due to its frame structure, the drop distance to the chute E, which is usually provided on the floor, is long,
Therefore, it is difficult to completely prevent dents because the impact of dropping is large, and it is inconvenient for high precision molding of splined parts and cam materials with protrusions that require precision, especially gears. large.

Therefore, the present invention addresses the above-mentioned problem when a horizontal multi-stage forging machine discharges a product, and a horizontal multi-stage forging that allows a molded product to be taken out and conveyed to a predetermined place without being impacted and dropped. It is an object to provide a dent prevention device for a machine.

[0007]

That is, the invention described in claim 1 of the present application (hereinafter referred to as "first invention") is a die block in which a plurality of dies from rough to fine are arranged in parallel at regular intervals. And a dent of a horizontal multi-stage forging machine that transfers a blank by a transfer chuck between the die and a plurality of punches provided on the front surface of a ram that is moved back and forth in opposition to the die. A device transfer chuck for transferring the product discharged from the final forming die to a position where it does not interfere with the punch, and a product released from the product transfer chuck after receiving the product immediately below the release position. Product conveying means for conveying in the lateral direction, and the product conveying means extends horizontally outside the forging machine through an opening formed in the side surface of the frame of the forging machine. .

Further, the invention according to claim 2 (hereinafter referred to as "second
Invention. ), In the structure described in the first invention, the product transporting means is a wrapping transporting member comprising a belt or a chain on which a plurality of receiving members for mounting the products released from the product transporting chuck are arranged. The product is placed on the upper traveling portion of the winding and conveying member via the receiving member and conveyed to the outside of the forging machine, and the product is wrapped and conveyed while being held between the product and the receiving member. A guide member is provided at the end of the product conveying means for guiding the member to the lower traveling portion and then dropping it.

Further, in the invention described in claim 3 (hereinafter referred to as "third invention"), in the structure described in the first invention or the second invention, the product conveying means has a starting end portion for transferring the product. It is characterized in that it is inserted into the forging machine through an opening formed in the side surface of the frame of the forging machine so as to be arranged immediately below the release position of the chuck.

[0010]

According to the first aspect of the present invention, since the product molded in the final forging station and discharged from the final forming die is transferred to the position where it does not interfere with the punch by the product transfer chuck, the product is transferred to the final forging station. Therefore, it will not be hit by a punch or the like after molding. Further, since the product transfer means for receiving the product transferred by the product transfer chuck directly below the release position is provided, a drop impact is applied to the product when the product is transferred from the chuck to the product transfer means. Never. An opening is formed on the side surface of the frame of the forging machine, and since the product conveying means extends horizontally outside the forging machine through the opening, the delivered product reaches outside the forging machine. Will be transported.

According to the second aspect of the invention, the product conveying means has a wrapping conveying member in which a plurality of receiving members are arranged, and the product is placed on the receiving member by the movement of the wrapping conveying member. The placed product is transported to the outside of the forging machine. In this case, the winding and conveying member is reversed from the upper traveling portion to the lower traveling portion at the terminal end portion, so that the receiving member is inclined and the product placed thereon is randomly dropped. A guide member is provided at the end of the conveying means to hold the product with the receiving member and guide it to the lower traveling portion of the winding conveyer member and then drop it. The products are guided to the lower traveling portion without falling undesirably, and are discharged downward one by one, and are stored in a product box, for example.

Further, according to the third aspect of the invention, the product conveying means has an opening formed on the side surface of the frame of the forging machine so that the starting end thereof is located immediately below the release position of the product transfer chuck. Since it is provided so as to be freely insertable into the forging machine via, without adding any hand to the forging machine,
By simply exchanging the product conveying means, it is possible to convey products of various sizes and prevent them from falling accidentally.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

First, as shown in FIG. 1, a horizontal multi-stage forging machine 1 in this embodiment is provided with a die block 3 at a predetermined position of its machine base 2, and the die block 3 has four dies 4a. 4d are arranged in parallel at a constant interval. on the other hand,
The same number of punches as the above-mentioned dies are provided on the front surface of a ram (not shown) that moves back and forth facing these dies 4a-4d, and the rams advance and retreat between the dies 4a-4d and the punches. The blank Y is forged. In this case, since each pair of the facing dies 4a to 4d and the punch constitutes a forging station, the forging machine 1 is provided with four forging stations. While being transferred to the station, the product X is obtained by being roughly and precisely molded.

A support frame 5 is slidably mounted on the die block 3 by fitting with a guide member (not shown) provided on the die block 3. A drive rod 6 which is reciprocally moved with a predetermined stroke in a die arranging direction orthogonal to the advance / retreat direction of the punch is connected to one end. Then, with the movement of the drive rod 6, the support frame 5 reciprocates once while the ram or punch is retracted by a distance equal to the distance between adjacent dies.

Further, on the front surface of the support frame 5, there are five transfer chucks 7 for transferring blanks.
a to 7e are attached, and as the support frame 5 reciprocates by the drive rod 6, the chucks 7a to 7e grip the blank Y and move between the dies.

In this case, the rightmost chuck 7 in the drawing
Reference numeral e is a product transfer chuck, which grips the product X formed in the final forging station and projected from the final die 4d, and transfers it to the outside of the final forging station as indicated by the chain line in the figure, and at this transfer position. After releasing the product X, it returns to the final forging station again. One end of the product transfer device 10 is arranged immediately below the product release position of the product transfer chuck 7e.
Next, the product transfer device 10 will be described.

As shown in FIGS. 2 to 5, the product conveying apparatus 10 includes two side frames 11a, 11a extending horizontally and these side frames 11a, 1a.
A U-shaped frame 11 composed of an end frame 11b connected to the terminal end of 1a is provided, and a support shaft 12a is provided on the starting end side and the terminal end side of the U-shaped frame 11, respectively.
A pair of rollers 13a and 13b that rotate around 12b are installed, and an endless net conveyor 14 is stretched between these rollers 13a and 13b.
On the net conveyor 14, a large number of receiving members 15 to 15 are provided with M-shaped support plates 15a to 15a so that the product X released from the product transfer chuck 7e can be placed. 15 are fixed at regular intervals. Further, an opening 8a that communicates the inside and outside of the machine is formed on the frame side surface 8 of the forging machine 1, and the U-shaped frame 11 is inserted into the forging machine 1 through the opening 8a and the start end thereof is inserted. One receiving member 15 in the section is located immediately below the product release position of the product transfer chuck 7e.

Then, by rotating the roller 13b on the terminal end side in the direction of arrow a by a drive motor (not shown), the net conveyor 14 has its upper traveling portion from the starting end to the terminal end (arrow b). The lower traveling portion is driven so as to move from the terminal portion toward the starting portion (arrow c). In that case, the net conveyor 14 is intermittently driven by a distance equal to the interval between the adjacent receiving members while the product transfer chuck 7e is returning to the final forging station, and then the chuck 7e is moved to the product. When X is gripped and transferred, the next adjacent receiving member (the receiving member on the left in FIG. 2) is positioned immediately below the release position.

On the other hand, a guide member 16 having a semicircular cut is provided at the end of the U-shaped frame 11 located outside the forging machine 1. The guide member 16 includes two guide plates 17, 17 protruding in the direction of the starting end portion of the vertical wall 1.
It is configured to be fixedly attached to the inner surface of the end frame 11b through the guide frame 17, and each of the guide plates 17 is provided with the semicircular cutouts 17a. This notch 17
a is the receiving member 1 as the net conveyor 14 bends and inverts along the peripheral surface of the roller 13b at the terminal end.
The size is set such that the product X placed on the receiving member 15 can be held with the receiving member 15 from immediately before the start of inclination of the product 5 until it goes around to the lower traveling portion side. The vertical thickness of the guide plate 17 at the lower end point is formed to be relatively small.

Further, the vertical frames 19, 19 having a predetermined height are provided on the lower surfaces of the side frames 11a, 11a near the end portions thereof.
And each of these vertical frames 19 are fixed.
Two wheels 20, 20 are provided at the lower part of the front and rear in a freely rotatable manner. On the other hand, on the floor surface, two rails 21 and 21 each having a U-shaped cross section are laid in a direction orthogonal to the frame side surface 8 of the forging machine 1. The wheels 20 to 20 are fitted in, and the entire product transport apparatus 10 horizontally moves in the front-rear direction along the rails 21 and 21. In this case, in the product transfer device 10, as described above, the one receiving member 15 at the starting end of the U-shaped frame 11 inserted into the forging machine 1 through the opening 8a is the product transfer chuck 7e. It is parked at a position located just below the release position.

A product box conveyor 22 extending in a direction orthogonal to the frame side surface 8 of the forging machine 1 is installed below the guide member 16 and between the vertical frames 19, 19. The transfer device 22 has a pair of rollers 24, 24 installed in front of and behind a frame 23 installed on the floor, and the endless net conveyor 2 is provided between the rollers 24, 24.
5, the net conveyor 2 is formed by rotating the rollers 24, 24 by a drive motor (not shown).
5 is moved in the same direction as the moving direction (arrow c) of the lower traveling part of the net conveyor 14 in the product transport device 10. And this net conveyor 25
Product boxes 26-2 having product storage grooves 26a-26a thereon
6 is placed such that the one storage groove 26a is located immediately below the lower end point of the guide member 16 in the product conveying apparatus 10, and the net conveyor 25 discharges the product X from the end point. By the time it is dropped and the next product X is discharged, it is intermittently driven so that the next adjacent storage groove (adjacent storage groove on the right in FIG. 2) is located immediately below the end point.

With the above structure, the product X formed in the final forging station and projected from the final die 4d
Is transferred to the outside of the final forging station while being gripped by the product transfer chuck 7e, and then released at the transfer position to be transferred to the receiving member 15 located immediately below the release position. . Then
Due to the movement of the upper traveling portion of the net conveyor 14, the product X placed on the receiving member 15 is conveyed to the outside of the forging machine 1 through the opening 8a, and is further conveyed horizontally toward the end portion. When the net conveyor 14 turns downward at the terminal end, the net conveyor 14 is guided to the downward traveling portion while being held between the receiving member 15 and the guide member 16. Next, by the movement of the downward traveling portion, the sheet is conveyed toward the starting end portion, discharged from the end point portion of the guide member 16 and dropped, and then stored in the storage groove 26a of the product box 26 located immediately below the end point portion. The Rukoto.

In that case, the product X is first produced in the final die 4
Since the product is not ejected and dropped from d but transferred to the outside of the final forging station by the product transfer chuck 7e, it is not hit by a punch or the like and is not dented by a drop impact. Further, since the receiving member 15 is located immediately below the release position of the product transfer chuck 7e, the drop distance at the time of delivery is short, and the product X is not subjected to an excessive drop impact. Further, since the guide member 16 is provided at the end portion where the receiving member 15 is inclined and inverted, the conveyed product X is guided to the downward traveling portion without being randomly dropped at the end portion and discharged one by one from the end portion. Then, they are arranged and stored in the product box 26. In this case, since the vertical thickness of the rail plate 17 at the end point is set to be small, the drop distance at the time of discharge is short, and the product X is not subjected to an excessive drop impact here.

Furthermore, since the entire product transfer device 10 can be moved along the rails 21 and 21,
The U-shaped frame 11 or the net conveyor 14 has an opening 8
It can be attached to and detached from the forging machine 1 via a, and the product transporting device 10 can be replaced without touching the forging machine 1 to prevent transporting and random drops corresponding to products X of various sizes. Can be achieved.

In the product conveying apparatus 10, as shown in FIG. 6, for example, instead of the rollers 13a, 13b and the net conveyor 14, sprockets 27a, 27 are respectively provided.
b and the chain feed 28 may be used.

Regarding the transportation of the product box 26 after storing the products, as shown in FIG.
A pusher 29 that horizontally reciprocates across the upper portion of the net conveyor 25 by a cylinder (not shown) is provided on the side of the end portion (lower end portion in the figure) of the pusher 29.
The product box 26 conveyed to the end portion by pressing is transferred to the start end portion of the second product box conveying device 30 which is also installed on the side of the end portion and on the opposite side of the pusher 29. . Then, the transferred product box 26 is transferred to the next work place by the second product box transfer device 30.

[0028]

As described above, according to the first invention of the present application, the product formed in the final forging station and discharged from the final forming die is transferred by the product transfer chuck to a position where it does not interfere with the punch. Therefore, the product will be transferred outside the final forging station,
Does not hit punches etc. after molding. Further, since the product transfer means for receiving the product transferred by the product transfer chuck directly below the release position is provided, a drop impact is applied to the product when the product is transferred from the chuck to the product transfer means. Never. And
An opening is formed on the side surface of the frame of the forging machine, and since the product conveying means extends horizontally outside the forging machine through the opening, the delivered product is conveyed outside the forging machine. The Rukoto.

Further, according to the second aspect of the invention, the product conveying means has a wrapping conveying member on which a plurality of receiving members are arranged, and the product is placed on the receiving member by the movement of the wrapping conveying member. The placed product is transported to the outside of the forging machine. In this case, the winding and conveying member is reversed from the upper traveling portion to the lower traveling portion at the terminal end portion, so that the receiving member is inclined and the product placed thereon is randomly dropped. A guide member is provided at the end of the conveying means to hold the product with the receiving member and guide it to the lower traveling portion of the winding conveyer member and then drop it. The products are guided to the lower traveling portion without falling undesirably, and are discharged downward one by one, and are stored in a product box, for example.

Further, according to the third aspect of the invention, the product conveying means has an opening formed on the side surface of the frame of the forging machine such that the starting end thereof is located immediately below the release position of the product transfer chuck. Since it is provided so as to be freely insertable into the forging machine via, without adding any hand to the forging machine,
By simply exchanging the product conveying means, it is possible to convey products of various sizes and prevent them from falling accidentally.

[Brief description of drawings]

FIG. 1 is a front view of a die block portion of a horizontal multi-stage forging machine according to an embodiment of the present invention.

FIG. 2 is a front view of the product transport device according to the embodiment of the present invention.

FIG. 3 is likewise a plan view of the product transport device.

FIG. 4 is a side view of the product transport device of the same.

FIG. 5 is an enlarged cross-sectional view showing a terminal portion of the product transport device.

FIG. 6 is an enlarged cross-sectional view showing a terminal end portion of a product transfer device according to another embodiment of the present invention.

FIG. 7 is a plan view of a product box transport device used in an embodiment of the present invention.

FIG. 8 is an explanatory diagram of a conventional problem.

[Explanation of symbols]

 1 horizontal multi-stage forging machine 3 die block 4d final die 7e product transfer chuck 8 frame side surface 8a opening 10 product transfer device 11 U-shaped frame 14 net conveyor 15 receiving member 16 guide member 17a notch 19 vertical frame 20 wheel 21 rail 22 product box carrier 26 product box Y blank X product

Front Page Continuation (72) Inventor Shuzo Shinohara Kyoto Prefecture Kuseyama-cho Kumiyama-cho Large Shimotsuya Small Letter Fortress No. 46 Sakamura Kikai Seisakusho Co., Ltd.

Claims (3)

[Claims] 1. Between a die block in which a plurality of dies ranging from coarse to fine are arranged in parallel at regular intervals, and a plurality of punches provided on the front surface of a ram that is moved back and forth facing the dies. , A dent preventive device of a horizontal multi-stage forging machine that transfers a blank by a transfer chuck into a predetermined shape, and transfers the product discharged from the final forming die to a position where it does not interfere with the punch. And a product transfer means for transferring the product released from the product transfer chuck directly below the release position and then transferring the product laterally, and the product transfer means is provided on the side surface of the frame of the forging machine. A dent preventive device for a horizontal multistage forging machine, which extends horizontally outside the forging machine through a formed opening. 2. The product carrying means has a wrapping carrying member formed of a belt or a chain on which a plurality of receiving members for placing the products released from the product carrying chuck are arranged. After the product is placed on the upper traveling part of the forging machine via the receiving member and conveyed to the outside of the forging machine, the product is held between the receiving member and guided to the lower traveling part of the winding conveying member. 2. The dent preventive device for a horizontal multistage forging machine according to claim 1, wherein a guide member to be dropped is provided at a terminal end portion of the product conveying means. 3. The product conveying means is inserted into the forging machine through an opening formed on a side surface of a frame of the forging machine so that a starting end portion of the product conveying means is located immediately below a release position of the product transfer chuck. The dent preventive device for a horizontal multi-stage forging machine according to claim 1 or 2, which is provided freely.