JP3488379B2 - Indentation prevention device for horizontal heading molding machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in a horizontal forging machine for forming a material from rough to fine in a plurality of forging stations each having a die and a punch, and is discharged from a die of a predetermined forging station. Belongs to the technical field of dent preventive devices that prevent dents from entering products.

[0002]

2. Description of the Related Art A horizontal forging machine for forming bolts, nuts, and various other parts is, for example, a plurality of forging stations each having a die and a punch which are arranged in parallel in a horizontal direction and face each other. This is a method of plastically processing the material in steps from coarse to fine.Normally, this type of forging machine is equipped with a chuck for material transfer that grips the material and transfers it between forging stations. The material processed in the former forging station is transferred to the latter forging station.

In that case, the chuck is, for example, as shown in FIG.
As shown in FIG. 3, a pair of chuck arms b and b each having a chuck claw a at its lower end are rotatably attached to shafts c and c, and a rod d is connected to an intersection of these chuck arms b and b. The chuck arms b and b can be opened and closed in the direction of the arrow y by moving the rod d up and down in the direction of the arrow x to grasp and release the material or the product z.

By the way, in general, such a material transfer chuck is provided as many as the number of sets of dies and punches, that is, the number of forging stations. For example, in the case where three forging stations are provided, first. Between the material feeding position where the material is fed and the chuck for feeding the fed material to the top station by reciprocating between the top station and the top station, and between the top station and the intermediate forging station A chuck that reciprocates to feed the material processed in the uppermost station to the intermediate station, and reciprocates between the intermediate station and the forging station to complete the forging of the material processed in the intermediate station. Three material transfer chucks including a chuck for feeding to the station are provided.
Then, the product processed into the predetermined shape at the forging completion station is dropped and discharged from the forging completion station, more specifically, the die of the forging completion station.

However, if a precisely molded product is dropped from the forging completion station as it is and discharged, a dent may be formed in the product due to a collision with a floor surface, for example, as shown in FIG. A chute e for receiving the product z discharged from the completion station is usually arranged at a position below the station.

[0006]

However, since the punch reciprocates with respect to the die even in the forging completion station, in order to avoid interference with the punch,
Since the chute is arranged relatively downward, the drop distance from the die to the chute becomes long, and there is a problem that it is not possible to effectively prevent dent marks on the product at the time of discharge.

Therefore, the main problem to be solved by the present invention is to effectively prevent dents from entering the product discharged from the forging completion station in the forging machine.

Further, in this type of horizontal forging machine, since a plurality of forging stations as described above are generally arranged in the space inside the machine base surrounded by the side surface of the machine base, the completion of the press molding is completed. The product discharged from the station remains inside the machine as it is, and in order to inspect and post-process the molded product, the press work is temporarily stopped for safety and accumulated inside the machine. There is a problem that you have to collect and enter the product that has been removed.

Therefore, another problem to be solved by the present invention is to avoid having to step inside the machine base in order to collect the finished product. To ensure the safety of the person.

Still another problem to be solved by the present invention is to perform post-processing such as inspection and post-processing on a finished product with high accuracy.

The other features and effects obtained by the present invention will be described below.

[0012]

In order to solve the above problems, the present invention uses the following means.

That is, the invention according to claim 1 in the claims of the present application (hereinafter referred to as "first invention").
Is provided in a horizontal forging machine that sequentially transfers a material between a plurality of forging stations each having a die and a punch by a chuck to form a product having a predetermined shape, and prevents a dent from entering the product. A dent preventing device, which receives a product discharged from a die of a predetermined forging completion station, gripped by a chuck and transferred to a position where it does not interfere with a punch, at a position immediately below a product release position of the chuck, and forging A product unloading means for unloading the product through the opening formed on the side surface of the machine base of the molding machine is provided. The product unloading means reciprocates the punch in the forging station and reciprocates the chuck between the forging stations. The product is configured to be intermittently transferred at a constant distance in synchronism with the movement, and the drive means of the product unloading means is provided outside the forging machine. And a post-processing unit for performing a predetermined post-processing on the product, which is disposed and is located outside the forging machine when the product is intermittently transferred a predetermined number of times by the product unloading unit. Characterize.

The invention according to claim 2 (hereinafter referred to as "second
Invention. In the first aspect of the invention described above, the product unloading means is provided so as to be movable in the direction in which the dies are arranged in parallel by a distance corresponding to the distance between the dies of the forging station.

By using the above means, the following effects can be obtained in the present invention.

First, according to the first aspect of the invention, the product discharged from the die of the forging completion station is directly on the floor surface,
Alternatively, instead of being dropped to a chute arranged relatively lower in order to avoid interference with the punch, it is gripped by a chuck and transferred in that state to a position where it does not interfere with the punch.

Therefore, the product formed at the forging completion station does not drop for a long distance at the time of discharge from the forging completion station, and dents are prevented from entering the product.

Next, the product transferred by the chuck is received by the product unloading means at a position immediately below the product release position of the chuck. In that case, since the product unloading means receives the product transferred to a position where it does not interfere with the punch, without considering interference with the punch,
The chuck can be arranged immediately below the product release position.

Therefore, the drop distance of the product when the product is transferred from the chuck to the product unloading means is shortened, and in this case as well, it is possible to effectively prevent dents from entering the product.

Next, the product delivered to the carry-out means is carried out of the molding machine through an opening formed in the side face of the press forming machine.

Therefore, the problem that the press work is stopped to enter the inside of the molding machine in order to collect the finished product is solved.

In this case, since the carry-out means carries out the product to the outside of the molding machine, the entire side surface of the machine base is not removed, but only the opening is formed on the side surface of the machine base. The safety of workers in the area can be maintained.

Further, since the driving means for driving the carrying-out means is arranged outside the forging machine, the space for forging work inside the molding machine is not narrowed, and therefore the reciprocating motion of the punch and the forging station. The reciprocating movement of the chuck between the two is not hindered and the entire molding machine becomes compact. Further, adjustment and inspection of the driving means can be performed outside the molding machine having a sufficient working space.

Further, the product unloading means intermittently transfers the product at a constant distance in synchronization with the reciprocating motion of the punch or chuck as described above, and the product is intermittently moved a predetermined number of times. Since post-processing means for performing a predetermined post-processing on the product is provided at the position when the product is transferred, for example, post-processing such as product quality inspection and deburring by the post-processing means, The post-processing can be performed at an apparently fixed position in advance, and the post-processing can be performed accurately and accurately.

Furthermore, since the position where the subsequent processing is performed is located outside the molding machine, it is possible to visually confirm and observe the post-processing, and like the above-mentioned driving means.
Adjustment and inspection of the post-processing means can be performed outside the molding machine, which has a sufficient working space.

On the other hand, according to the second aspect of the invention, in particular, the product discharge means is provided so as to be movable in the direction in which the dies are arranged side by side by a distance corresponding to the distance between the dies of the forging station. It is possible to receive the product discharged from the station and carry it out of the molding machine, regardless of the stage of the forging station having a plurality of forging stations.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

In this embodiment, the dent preventive device according to the present invention is provided in a horizontal multi-stage press forming machine. As shown in FIGS. 1 and 2, the forging machine 1 is equipped inside a machine base 2 so that a die block 3 and a ram 4 face each other, and the die block 3 and the ram 4 face each other. Multiple dies 5 (three in the example) on each side
a, 5b, 5c and punches 6a, 6b, 6c are juxtaposed in the horizontal direction at the same intervals, whereby a plurality of forging stations A, B, C are formed.

A joint member 8 rotatably fitted on a crank shaft 7 is connected to the rear end of the ram 4, and the crank shaft 7 serves as a power source of the forging machine 1 via a reduction mechanism 9. When it is rotated once by a certain motor 10, the ram 4 and punches 6a, 6b, 6c are reciprocated once with respect to the die block 3 and the dies 5a, 5b, 5c, whereby each forging is performed. Stations A, B,
In C, the material is pressed.

A raw material supply hole 11 is provided on one end side of the die block 3, and a wire M as a raw material is supplied by a supply device (not shown) so as to project from the front surface of the die block 3 through the supply hole 11. . Then, the wire material M thus supplied is cut into a predetermined length by the material supply device 12, and then delivered as the material W to the uppermost chuck 21 of the material transfer chucks described below.

In front of the die block 3, there are chucks 21, 22, 23 for material transfer for sequentially transferring the material W supplied from the material supply device 12 among a plurality of forging stations A, B, C. A product withdrawal chuck 41 for transferring the product G discharged from the final stage forging station C as a forging completion station to a product unloading device 51 described later is provided. These material transfer chucks 21, 22, 23 and product withdrawal chuck 41
Of the dies 5a, 5b, 5c and punches 6a, 6b, 6c are respectively attached to a movable bracket 26 that is swingably connected to a fixed bracket 24 fixedly mounted on the upper surface of the machine base 2 via arm members 25 ... 25. They are arranged side by side in the horizontal direction at the same intervals.

When the crankshaft 7 is rotated once, the rod 27 connected to one end of the movable bracket 26 is reciprocated once in the horizontal direction via a power transmission mechanism (not shown). Material transfer chuck 2
The uppermost chuck 21, which is located on the leftmost side of the drawing among the 1, 22, 23, is the material W by the material supply device 12.
Is moved back and forth between the delivery position (the position where the uppermost chuck 21 is located in FIG. 2) and the uppermost forging station A to transfer the material W to the uppermost station A, and then the uppermost station A in FIG. The intermediate chuck 22 located on the right side of the upper chuck 21 is reciprocated between the uppermost station A and the intermediate forging station B, and the material W discharged from the uppermost station A is transferred to the intermediate station B. The material discharged and discharged from the intermediate stage station B after being transported, and then the final stage chuck 23 located on the right side of the intermediate stage chuck 22 in the drawing is reciprocated between the intermediate stage station B and the forging completion station C. W is transferred to the forging completion station C, and the product evacuation chuck 41 located on the rightmost side of the drawing is connected to the forging completion station C and the product unloading device. The product G of a predetermined shape discharged from the forging completion station C by being reciprocated between a position immediately above the end portion of 51 (the position where the product retracting chuck 41 shown by the chain line in FIG. 2 is located) is carried out. Transfer to the end of the device 51.

Further, these chucks 21, 22, 2
Reference numerals 3 and 41 include a pair of chuck arms 29 and 29 that are opened and closed by raising and lowering the rod 28, and chuck claws 30 and 30 for holding the material W or the product G are attached to the tips of the arms 29 and 29. ing. On the other hand, a shaft 31 is provided behind the fixed bracket 24, and cams 32 ... 32 are integrally provided on the shaft 31 and one end of each cam 32 is urged to the connecting lever 33.
The other end of is engaged with the upper end of the rod 28.

When the crankshaft 7 is rotated once, the shaft 31 is rotated once through a power transmission mechanism (not shown), whereby each connecting lever 33 is driven by the cam 32, and the connecting lever is rotated. 33 moves the rod 28 up and down, and when the punches 6a, 6b, 6c are retracted, the material W, W or the product G is knocked out by a not-shown knockout mechanism, and the dies 5a, 5b of the respective forging stations A, B, C,
5c discharge timing and material supply device 12
At the timing when the material W is supplied from each chuck 2,
Arms 29, 29 of 1, 22, 23, 41 are closed to grip the material W ... W or the product G, and punches 6a, 6b,
When the material W ... W is punched by the punches 6a, 6b, 6c during the forward movement of 6c.
Die 5a, 5 of each forging station A, B, C
Each chuck 2 is driven at the timing of being driven into b and 5c.
The arms 29, 29 of 1, 22, 23, 41 are opened to release the grip of the material W ... W or the product G.

An opening 2a is formed on the right side surface of the machine base 2 of the press molding machine 1, and the release position of the product G by the product withdrawal chuck 41 (the product withdrawal shown by the chain line in FIG. 2). Position where the chuck 41 for use is located)
From a position immediately below the machine 2 through the opening 2a
Outside, that is, outside the molding machine 1, thereby receiving the product G released from the product retreat chuck 41 from the product retracting chuck 41, the grip of which is released at the release position, and the drop G, at a position immediately below the release position, A product unloading device 51 for unloading the product to the outside of the molding machine 1 is provided.

As shown in FIGS. 3, 4 and 5, the product unloading device 51 includes bolts 2b ... On the lower surface of the opening 2a.
The fixed frame 52 clamped and fixed at 2b, and upward movement in the direction of arrow U, forward movement in the direction of arrow F, downward movement in the direction of arrow D, and backward movement in the direction of arrow R with respect to the fixed frame 52. And a movable frame 53 that repeats.

The fixed frame 52 has a pair of outer plates 54, 54 each having a leg portion 54a extending downward and a pair of outer plates 54, 54 arranged in parallel with each other at a predetermined interval. The plate 55 is the rear end plate 56.
And a bottom plate 57 is installed between the leg portions 54a and 54a, and is fixed to the machine base 2 with bolts 2b ... 2b via the bottom plate 57.

On the other hand, the movable frame 53 has a pair of carrier plates 58, 58 arranged in parallel between the outer plates 54, 54 and the inner plate 55 of the fixed frame 52 with a predetermined space therebetween. Bottom plate 5
It is configured so as to be integrally connected by 9, 60, and is arranged so as to overlap with the fixed frame 52.

A plurality of recesses 52a ... 52a, 53a ... 53a into which the product G can be fitted are provided at the upper edges of the fixed frame 52 and the movable frame 53.
Are formed at regular intervals, and in particular, the recess 52a ′ on the rearmost end side of the fixed frame 52 is formed immediately below the product release position of the product retraction chuck 41.

Carrier plate 5 of movable frame 53
A guide rail 61 for longitudinal movement extending in the longitudinal direction of the carrier plates 58, 58 is provided on the bottom plate 59 on the front side which is installed between 8 and 58, and is vertically extended on the right outer surface of the machine base 2. Up and down guide rails 62 are provided respectively, and these guide rails 6
1, 62 slidably engaged with the upper and side edges of the guide rail 61, 62 along the guide rails 61, 62 in the front-rear direction (directions of arrows F and R) and the up-down direction (directions of arrows U and D). A support plate 63 that slides in is provided.

Further, on the outer surface on the right side of the machine base 2, there is a support column 64.
And a drive shaft 67 that is rotatably supported by the support member 65 shown in FIG. 1 and that interlocks with the crankshaft 7 via a pair of bevel gears 66, 66, and a support shaft 69 that is installed between the columns 68, 68. Is provided, and the drive shaft 6 is provided.
7, a cam 70 for moving back and forth and a cam 71 for moving up and down are integrally provided, and the support shaft 69 has a cam follower 72 that abuts on the cam 70 for moving back and forth.
And a lever 74 for forward / backward movement having a telescopic rod 73 connected to the front end of the movable frame 53, a cam follower 75 abutting on the vertical movement cam 71, and a cam follower 76 abutting on the lower surface of the support plate 63 for vertical movement. Lever 77 is rotatably supported.

In this case, the vertical movement lever 77 is always urged toward the vertical movement cam 71 by the weight of the support plate 63, the movable frame 53, etc., so that the follower by the cam 71 is secured and the forward / backward movement is performed. The lever 74 is
A spring (not shown) is always biased in the direction of the forward / backward movement cam 70, and the driven by the cam 70 is secured.

When the crankshaft 7 is rotated once, the drive shaft 67 is rotated once in the direction of the arrow X, whereby the levers 74 and 77 are driven by the cams 70 and 71, respectively, and the movable frame is moved. The vertical movement cam 71 and the vertical movement lever 77 move up and down once in the directions U and D, and the forward and backward movement cam 70 and the forward and backward movement lever 74 move back and forth once in the directions F and R.

In this case, for example, as shown in FIG. 4, when the movable frame 53 moves down to the lowermost position, the upper edge of the movable frame 53 becomes the depressions 52a ... 52a, 52a 'of the fixed frame 52. When the movable frame 53 moves upward to the uppermost position as shown in FIG. 5 and does not rise above the lower end of the placed products G ... G, the depressions 53a. The lower end portion of the products G ... G placed on the upper end of the fixed frame 52 does not become lower than the upper edge portion of the fixed frame 52.

Further, as shown in FIG. 4, when the movable frame 53 moves backward to the rearmost position, the depressions 53a ... 53a of the movable frame 53 are fixed.
52a, 52a 'in the front-rear direction, and, for example, as shown in FIG. 5, when the movable frame 53 moves forward to the frontmost position, the depressions 53a, ... 52a is moved forward by the same distance as the fixed interval between these recesses, and is aligned with the frontward recesses 52a ... 52a of the fixed frame 52 or the inclined portion 52b at the front end of the fixed frame 52 in the front-rear direction. ing.

When the movable frame 53 moves up and down, the movable frame 53 moves up and down linearly without moving back and forth, and the forward and backward moving lever 74 is prevented from being twisted. When the profile is set and the movable frame 53 moves back and forth,
The rod 73 of the lever 74 for longitudinal movement expands and contracts so that the movable frame 53 does not move vertically but moves linearly back and forth.

Further, above the opening 2a on the right outer surface of the machine base 2, there is a grinding surface near the height of the upper end of the product G placed in the recess 53a of the movable frame 53 which has moved upward. A deburring device 78 is arranged via a support member 78a.

Next, the operation of the press molding machine 1 will be described.

Material W supplied from the material supply device 12
While being sequentially transferred by the material transfer chucks 21, 22, and 23, the punches 6a, 6b, and 6c are moved forward and backward to be forged at the forging stations A, B, and C, and finally at the forging station C. The product G having a shape is formed.

When the punches 6a, 6b and 6c are retracted, when the product G is ejected from the die 5c of the forging completion station C by the knockout mechanism, the product G is ejected from the front surface of the die block 3. , Gripped by the evacuation chucks 41 arranged side by side adjacent to the final stage chuck 23, and in that state, the forging stations A, B,
It is further transferred to the right side surface of the machine base 2 so as to be retracted from the C side.

Therefore, the product G finally molded in the forging completion station C does not drop at the time of discharging from the forging completion station C, whereby the product G is struck by an impact when dropped. Problems such as marks are avoided.

Product G transferred by the retracting chuck 41 away from the forging stations A, B, C
When the punches 6a, 6b, 6c are advanced next time, the grip is released and is delivered to the rear end portion of the product unloading device 51. In that case, the product release position where the retracting chuck 41 releases the grip of the product G is located in the right side surface direction of the machine base 2 away from the forging stations A, B, C where the punches 6a, 6b, 6c move back and forth. Therefore, these punches 6a,
The product unloading device 51 can be arranged without worrying about the interference with 6b and 6c, especially the interference with the punch 6c of the forging completion station C, and as a result, the product unloading device 51 can be arranged.
Can be arranged close to immediately below the product release position by the retracting chuck 41.

Therefore, as shown in FIG. 4, the product G released from the evacuation chuck 41 is received by the product unloading device 51 at a short drop distance, and the product G is ejected from the evacuation chuck 41 to the unloading device 51. Even when the product G is delivered, it is possible to effectively prevent the product G from being dented due to a drop impact.

At the time when the product withdrawing chuck 41 releases the grip of the product G, the movable frame 53 of the product unloading device 51 is moved backward to the rearmost position, as shown in FIG. , It is in the state of moving down to the lowest position. Therefore, the product G transferred from the evacuation chuck 41 to the unloading device 51 is placed in the recess 52 a ′ on the rear end side of the fixed frame 52 of the unloading device 51.

On the other hand, the retracting chuck 41 moves in the direction of the arrow Y to return to the forging completion station C after releasing the product G. Then, at the next time, the evacuation chuck 41 grips the next product G and presses the completion station C.
4 to the product release position again to release the grip of the product G, the drive shaft 67 makes one rotation in the X direction, which causes the movable frame 53 of the product unloading device 51 to move to the position shown in FIG. From the state shown in (1), first move up in the U direction, then move forward in the F direction to the state shown in FIG. 5, then move down in the D direction, and finally move backward in the R direction. The state again shown in FIG. 4 is obtained.

In this case, when the movable frame 53 moves upward, the recesses 52a ', 52 of the fixed frame 52 are formed.
The products G ... G placed in the a ... 52a are lifted from below into the depressions 53a ... 53a of the movable frame 53 and transferred.

Next, the movable frame 53 is moved forward in this state, so that the depressions 53a ...
The products G ... G delivered to 53a move one by one directly to the depressions 52a ... 52a of the fixed frame 52 in the front or directly above the inclined portion 52b at the front end of the fixed frame 52.

After that, when the movable frame 53 moves downward, the depressions 53a ... 53a of the movable frame 53.
The products G ... G placed therein are placed one by one in the front depressions 52a ... 52a of the fixed frame 53 and transferred, and particularly, on the front end side of the movable frame 53. The product G placed in the depression 53a is
The fixed frame 52 is placed on the inclined portion 52b at the front end portion from above and is rolled and discharged from the product unloading device 51 along the inclination as shown by an arrow Z in FIG.

Finally, as the movable frame 53 moves backward, the depressions 53a ... 53a of the movable frame 53 are moved.
However, each recess 52a ', 52a ... 52 of the fixed frame 53
Move just below a.

This operation is performed by the punches 6a, 6b, 6
The same cycle in synchronization with the advancing / retreating operation of c, the transfer operation and opening / closing operation of chucks 21, 22, 23, 41, or the discharging operation of materials W, W or product G from dies 5a, 5b, 5c by a knockout mechanism. In this product unloading device 51, the product is finally molded at the forging completion station C, and the product evacuation chuck 4
The products G ... G sequentially retracted in the lateral direction at 1 can be intermittently transferred by a distance corresponding to a constant interval between the recesses, and the products G ... G can be transferred from the inside of the molding machine 1. It is carried out to the outside of the molding machine 1 through the opening 2a.
When the product G is intermittently transferred a plurality of times (five times in the illustrated example) after being delivered to the product unloading device 51,
It is rolled and discharged along the inclined portion 52b located outside the molding machine 1.

Therefore, in order to recover the finally molded products G ... G, the trouble that the pressing work is purposely stopped to enter the inside of the molding machine 1 is solved, and the safety of the worker is improved. Reserved.

Further, the right side surface of the machine base 2 is only formed with the opening 2a of the minimum size necessary for the product unloading device 51 to be inserted therethrough. The safety of workers on the outside is maintained.

Furthermore, in the product unloading device 51, a guide rail 61 for forward and backward movement for moving the movable frame 53 up and down, a guide rail 62 for vertical movement, a support plate 63, a drive shaft 67, a support shaft 69, a cam 70 for forward and backward movement, Vertical movement cam 71, forward and backward movement lever 74,
Since the vertical movement levers 77 and the like are arranged outside the forging machine 1, the space for forging work inside the molding machine 1 is not narrowed, and therefore the punches 6a, 6b, 6c and the chuck 21, 22, 23, 4
1 and the like are not hindered, the molding machine 1 as a whole is made compact, and the guide rails, plates,
Alternatively, adjustment and inspection of each member such as the shaft, cam, lever, etc. can be performed outside the molding machine 1 having a sufficient working space.

On the other hand, above the opening 2a on the outside of the forging machine 1, a deburring device 78 for contacting and grinding the product G transferred from the fixed frame 52 to the movable frame 53 and moved upward. Therefore, the product passing under the deburring device 78 during the forward transfer (in the illustrated example, the product G'transferred from the rear end to the fourth dent to the fifth dent). ) Will be post-processed after deburring.

In this case, since the installation position of the product unloading device 51 and the transfer distance between the recesses are known in advance, such post-processing such as deburring can be performed accurately and accurately at a fixed position. It is possible to install the deburring device 78 in the. Further, since the deburring device 78 for performing such post-processing is arranged outside the molding machine 1, the deburring work can be easily visually confirmed and observed, and the deburring device 78 can be installed first. As a result, the adjustment and inspection can be performed outside the molding machine 1 having a sufficient working space.

Here, it goes without saying that the post-processing device may be one that performs post-processing other than deburring, and it is not limited to one machine and a plurality of machines may be provided. Further, the product may be provided with a device such as a sensor for inspecting the quality, for example, the sensor and the rejection device are installed in this order in the product transfer direction, and the sensor in the upper stage is not installed. It is also possible to configure that the rejected products are excluded from the product discharge device by the lower removal device.

As shown in FIG. 4 or 5, for example, a product box H or the like is installed in front of the inclined portion 52b of the product unloading device 51, and the product G taken out through the inclined portion 52b. … Collect G and pack it in a box. Alternatively,
You may make it transfer to another conveyance conveyor toward the next other work area.

In this case, the product unloading device 51 is set so that the products G ... G are lowered to the lower position outside the molding machine 1 as the products G ... G are transferred to the outside of the molding machine 1. For example, it may be arranged with a low inclination toward the outside of the molding machine 1. The product G carried out by the product carry-out device 51 ...
Since G will be lowered to a low place, the above-mentioned product boxing work and transfer work transfer work etc.
Since it can be performed at a low place outside, it is advantageous in terms of workability, and even if the product G ... G is accidentally dropped during the work, the fall distance is short, so the dent mark at that time It will be prevented.

Next, a second embodiment of the present invention will be described with reference to FIG. Note that the same reference numerals are used for the same or corresponding components.

In this embodiment, six forging stations can be installed, but the punches of the ram and the dies 5e and 5f of the die block 3 are removed from the lower two forging stations. Also,
Seven chucks can be attached to the movable bracket 26, but the lower two chucks are not attached. And 4 attached to die block 3
Of the two dies, the lowermost die 5d is used as the die for the forging station, and the product G discharged from the die 5d
Is transferred to the end of the fixed frame 52 of the product unloading device 51 by the lowermost chuck 100 of the five chucks attached to the movable bracket 26.

On the other hand, a vertical movement guide rail 62 with which a fixed frame 52 in the product unloading device 51 and a support plate 63 supporting the movable frame 53 are slidably engaged,
Alternatively, all of the columns 64, 68, 68 and the like are attached to the base member 101 fixed to the opening 2a of the machine base 2 with the bolts 101b ... 101b, and the base member 101 has the dies 5a to 5f arranged in parallel. In the installation direction, bolt holes 101a ... 101a are formed at the same intervals as the distance between the dies 5a to 5f, whereby the entire product unloading device 51 corresponds to the distance between the dies 5a to 5f of the forging station. Only the dies 5a to 5f can be moved and installed in the arranging direction.

Then, according to the illustrated example, the end of the fixed frame 52 of the product unloading device 51 extends to the installation position of the die 5e removed in the die block 3, and is discharged from the die 5d of the pre-pressing completion station. Product G
Is received at the installation position of the die 5e.
By moving the dies 5a to 5f in the parallel direction by the distance between the dies 5a to 5f, it becomes possible to receive the product G discharged from the arbitrarily set forging station and carry it out of the molding machine 1. It is possible to deal with the case where the dies 5e and 5f are dies of the forging completion station.

[0073]

As described above, according to the present invention,
It is possible to effectively prevent dents from entering the product formed into a predetermined shape in the horizontal forging machine, and to collect the finished product without getting inside the machine base.
It is possible to perform post-processing and the like of the product with high accuracy.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a forging machine equipped with a dent preventing device according to an embodiment of the present invention.

FIG. 2 is a view taken along the line A-A in FIG.

FIG. 3 is a right side view of the hitting prevention device.

FIG. 4 is a view taken along the line EE in FIG.

FIG. 5 is a vertical cross-sectional view of a partially cutout showing the configuration of the same dent prevention device.

FIG. 6 is a schematic front view of a dent prevention device according to a second embodiment.

FIG. 7 is an explanatory diagram of a conventional problem.

[Explanation of symbols]

1 Horizontal forging machine 2 units 2a opening 5a, 5b, 5c dies 6a, 6b, 6c punch 10 motors 21,22,23 Material transfer chuck 41 Product evacuation chuck 51 Product unloading device 52 fixed frame 52a, 52a ', 53a depression 52b Inclined part of fixed frame 53 Movable frame 61 Guide rail for longitudinal movement 62 Vertical guide rail 63 Support plate 67 First Shaft 69 Second shaft 70 Front / rear cam 71 Vertical movement cam 74 Back and forth lever 77 Vertical movement lever 78 Deburring device A, B, C Forging station W material G product

Continuation of the front page (56) Reference JP-A-11-77219 (JP, A) JP-A-8-168846 (JP, A) Actual flat 7-9542 (JP, U) Actual flat 6-39239 (JP , U) Actual Kaihei 7-21234 (JP, U) Registered utility model 3036250 (JP, U) Registered utility model 3020107 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B21J 1 / 00-13/14 B21J 17/00-19/04 B21K 1/00-31/00

Claims (2)

(57) [Claims] 1. A horizontal forging machine for sequentially transferring a raw material by a chuck between a plurality of forging stations each having a die and a punch to form a product having a predetermined shape, which is provided with a dent. A device for preventing a dent, which is discharged from a die of a predetermined forging completion station, is gripped by a chuck and transferred to a position where it does not interfere with a punch, at a position immediately below a product release position of the chuck. Product unloading means for receiving and unloading the product through the opening formed on the side surface of the machine head of the forging machine is provided, and the product unloading means reciprocates the punch in the forging station and between the forging stations. The product is configured to be intermittently transferred at a constant distance in synchronization with the reciprocating movement of the chuck, and the drive means of the product unloading means is forged. Post-processing means is disposed outside the molding machine, and is provided at a position outside the forging machine when the product is intermittently transferred a predetermined number of times by the product unloading means, for performing predetermined post-processing on the product. A dent preventive device for a horizontal forging machine. 2. The horizontal forging process according to claim 1, wherein the product unloading means is provided so as to be movable in a direction in which the dies are arranged side by side by a distance corresponding to a distance between the dies of the forging station. Machine dent prevention device.