JPH059734U - Material transfer device in forging machine - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if the material supplied from the material supply unit provided on one side of the machine head of the forging machine is a cutting material that has been cut into a predetermined size in advance, the cutting base material is used. The purpose is to reliably convey to a forging station adjacent to the supply section. [Structure] A slide member 32 that is reciprocally driven between a material supply unit 10 and a forging station (a) adjacent to the material supply unit 10.
A pair of gripping members 35, 36 for vertically sandwiching the peripheral surface portion of the cutting material b supplied from the material supplying unit 10 via the base 34 are openably and closably attached, and one gripping member 35 is cut into the cutting material b. Cylinder 40 that is provided with a coil spring 38 that urges the peripheral surface portion of the coil spring in the clamping direction and that opens the gripping member 35 against the coil spring 38.
Is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is a material conveying device in a press forming machine, and in particular, it is cut into a predetermined size in advance. The cutting material supplied from the material supply unit provided on one side of the machine base is adjacent to the supply unit. The present invention relates to a material transfer device that transfers a material to a forging station.

[0002]

[Prior art]

  Generally, multiple dies arranged side by side on the machine base and move back and forth toward each of these dies. It is composed of a plurality of punches attached to the front of the ram facing each die. At each forging station to be formed, the material is forged in a stepwise manner from coarse to fine. In the press forming machine, the bar material is fed from the material supply unit provided on one side of the machine base. While being supplied, it is synchronized with the forward / backward movement of the ram and is moved in a direction orthogonal to the ram. A cutter mechanism that is reciprocally driven with a stroke of The bar material supplied from the material supply unit is cut into a predetermined size, and the cutter machine The material cut by the structure is conveyed to the forging station side adjacent to the material supply section. However, for example, stainless steel, high carbon steel, etc. Upsetting when difficult-to-form bar material is used or at a specified forging station When molding a molded product with a large amount or a complicated shape, The bar material is preheated to a predetermined processing temperature by an appropriate method such as heat, and this heating is performed. The supplied bar material is supplied from the material supply section, and this is cut to a specified size by the cutter mechanism. A forging station that cuts the material by the method and adjoins the cut material to the material supply section. It is carried to the side.

[0003]

[Problems to be solved by the device]

  By the way, as mentioned above, it is heated to a predetermined processing temperature in advance and supplied from the material supply unit. When the bar material to be cut is cut by a cutter mechanism to form a cut material with a predetermined size. In this case, the cutting surface is not cut perpendicularly to the axis of the material, but cut obliquely. The cutting material with the cutting end surface inclined in this way is cut by the die and punch. When the material is forged at the configured forging station, the material is formed into a predetermined shape or place. It becomes difficult to mold to a certain dimensional accuracy, and defective products occur.

[0004]   Therefore, in order to prevent the cutting end surface from inclining, the bar material should be cooled to a specified size. After cutting with high precision, the cutting material is passed through a heating furnace etc. It is heated from time to time, and this is fed from the material supply section on one side of the machine base of the forging machine. Although there is a request to supply, a cutting material that has been cut to a predetermined size in advance like this Securely hold the paper by holding it with the cutter mechanism for cutting the bar material as described above. It is difficult to send, and the cutting material is conveyed in an improper posture, or Failure to grasp the cutting material may occur, leading to improper forging and damage to the die or punch. Therefore, it becomes difficult to satisfactorily continuously press the cutting material.

[0005]   Therefore, the present invention is applicable to the case where a cutting material previously cut to a predetermined size is used. In order to deal with the above situation, the material supplied from the material supply section of the forging machine is Therefore, even if the cutting material is cut to a specified size, place it next to the material supply Providing a new material transfer device that can reliably transfer to a forging station The purpose is to

[0006]

[Means for Solving the Problems]

  In order to solve the above problems, the present invention is configured as follows. .

[0007]   First, the device according to the first claim of the present application (hereinafter referred to as the first device) is installed in parallel on a machine base. Multiple dies and each die on the front of the ram moving back and forth towards each of these dies. A plurality of punches mounted so as to face each other, and provided on one side of the machine base. The material supplied from the material supply unit is composed of multiple dies and punches. A plurality of material transfer chucks that are sequentially transferred to a multi-stage forging station, A predetermined shape is obtained by gradually and stepwise forging the material at each forging station from coarse to fine. In the material conveying device in the forging molding machine for molding the product in the shape of Receiving the cutting material that has been cut into a predetermined size and supplied from the material supply section. The feeding means and the receiving means are provided to the material supplying section and the supplying section in synchronization with the advance / retreat operation of the ram. The driving means for reciprocating between the adjacent forging stations is provided. To collect.

[0008]   The invention according to the second claim of the present application (hereinafter referred to as the second invention) is the same as the first idea. Similar to the proposal, the material supplied from the material supply unit provided on one side of the machine base of the forging machine. From rough to precise material with a multi-stage forging station consisting of dies and punches In a press forming machine that forms products of a predetermined shape by sequentially pressing in stages In the material conveying device, the material supply section and a forging station adjacent to the supply section And a slide member that is reciprocally driven in synchronization with the forward and backward movement of the ram, It is provided on the id member via the base so that it can be opened and closed, and is supplied from the material supply section. A pair of grips that sandwich the peripheral surface of the cutting material that has been cut to a predetermined size in the vertical direction. A member, and an urging member for urging the gripping member in a direction of holding the peripheral surface portion of the cutting material, Of the cutting material gripped by the pair of gripping members and conveyed to the forging station A holding means for temporarily holding the cutting material in a pressed state at the time of pressing, and the holding means. Opening at least one of the gripping members while holding more cutting material It is characterized in that opening means is provided.

[0009]

[Action]

  According to the first invention, the cutting element supplied from the material supply section provided on one side of the machine base. The material is received by the receiving means, and in this state, the receiving means acts on the driving means. On the front side of the forging station driven by the Is moved so that the cutting material is delivered to the forging station adjacent to the material supply. The cutting material is actually conveyed, and it is conveyed in an improper posture or when it does not grasp the cutting material. As a result, it is possible to prevent the occurrence of damage, and it is possible to favorably perform continuous heading.

[0010]   Particularly, according to the second aspect, the peripheral surface portion of the cutting material supplied from the material supply section is A pair of grips provided on the ride member via the base and urged by the urging member It is securely clamped by the material from above and below, and in this state, it is synchronized with the forward and backward movement of the ram. It was gripped by a pair of gripping members with the forward movement of the slide member that was reciprocally driven. Ensure that the cutting material is conveyed to the forging station adjacent to the material supply section Become. Then, the cutting is conveyed to the forging station and forged there. While the material is held in the pressed state by the holding means, At least one of the pair is opened, and a pair of The gripping member of will be returned to the front position of the material supply section again, and then again. By repeating the above series of operations, the cutting supplied from the material supply unit The material is successively and continuously conveyed to the forging station, where it is forged. Will be done. In this way, the material is supplied from the material supply unit provided on one side of the machine base. Even if the material to be cut is a material that has been cut to a predetermined size in advance, it does not easily grab the material. It will surely prevent it from being conveyed in an improper posture, and it will It will be possible to carry out continuous press forming.

[0011]

【Example】

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

[0012]   As shown in FIGS. 1 and 2, a press forming machine 1 equipped with a material supply device according to the present invention. The die block 3 is provided at a predetermined position of the machine base 2 in A plurality of dies 4a to 4d (see FIG. 2) are arranged in parallel on the die block 3 at regular intervals. Has been done. Also, on the front surface of the first ram 5a that moves back and forth toward the die 4a, , The punch 6a facing the die 4a is attached, and the die 4 On the front surface of the second ram 5b which moves back and forth toward b to 4d, each of these dies 4 is Each of the punch holders has a plurality of punches 6b to 6b so as to face b to 4d. 7 ... 7 and is installed in front of the machine base 2 as shown in FIG. The first ram 5 via a crank mechanism 9 driven by a drive motor 8 placed a and the second ram 5b are moved back and forth toward the respective dies 4a to 4d. As a result, the die 4a to 4d and the punches 6a to 6d are used. Supply from one side of the machine base 2 at the multi-stage forging stations (a) to (d) The cutting material b that has been cut to a predetermined size is forged in a stepwise manner from coarse to fine. By doing so, a product having a predetermined shape is formed.

[0013]   The first ram 5a and the second ram 5b move forward and backward at different timings. It is configured to

[0014]   Further, as shown in FIG. 2, one side of the die block 3 is cut into a predetermined size. The material supply unit 10 for supplying the cut cutting material b is provided and In front of the part 10, the cutting pushed out from the supply part 10 to the front of the die block 3 A stopper member 11 with which the front end surface of the material b abuts is arranged. The material 11 is a bevel driven by a drive motor 12 arranged at a predetermined position of the machine base 2. With the rotation of the screw shaft 13a integrated with the Lugear mechanism 13, the screw shaft 13a is moved back and forth. Depending on the size of the cutting material b, the distance between the stopper member 11 and the front surface of the die block 3 It is supposed to be adjusted.

[0015]   Further, as shown in FIG. 1, the cutting material is provided in the material supply section 10 at the rear of the machine base 2. The material supply station 14 for supplying b is constructed. A bar material cutting mechanism 1 for cutting the coiled bar material B into a predetermined size is provided in the partition 14. 5 and a hopper 16 for storing the cutting material b cut by the cutting mechanism 15 And a lifter that conveys the cutting material b stored in the hopper 16 to the carry-in section 17. The mechanism 18 and a plurality of guide rollers 19 ... A pushing rod 20 which is reciprocally driven by a driving means at a predetermined stroke; For high frequency heating, etc., which is placed between the carry-in section 17 and the machine base 2 of the forging and molding machine 1. A heating furnace 21 for preheating the cutting material b to a predetermined processing temperature by the method The cutting material b conveyed to the carry-in section 17 is pushed by the pushing rod 20. The cutting raw material b in the front row is discharged from the raw material and is sequentially supplied into the heating furnace 21. It is pushed out from the material supply unit 10 until it comes into contact with the stopper member 11. It

[0016]   It should be noted that a discharge system for discharging the cutting material b from the material supply unit 10 into the hopper 16 is provided. Unit 22 and the finished product pressed by the final pressing station (D). In addition to the fact that a transfer chute 24 is provided for transferring onto the delivery conveyor 23, In the middle of the discharge chute 22, the defective cutting material b is selected and the hopper is selected. A sorting chute 22a for discharging into the -25 is provided. In addition, the specified forging When the number reaches the limit, the extruding rod 20 moves it into the heating furnace 21 and the machine base 2. All of a certain cutting material b is discharged onto the discharge chute 22.

[0017]   Then, as shown in FIGS. 2 and 3, the cutting material supplied from the material supply unit 10 described above. b to the forging station (a) composed of the die 4a and the punch 6a. A material transport device 26 for transporting is provided, and the upper surface of the die block 3 is provided. Is a material that sequentially conveys the cutting material b to each of the above forging stations (a) to (d). A transfer chuck mechanism 27 is provided. Fixed block 28 fixed on the rack 3 and each die supported by the block 28. The slide block 29 reciprocally movable in the juxtaposed directions of 4a to 4d, It has a pair of claw members 30a and 30b attached to the front surface of the id block 29. A plurality of material transfer chucks 30 ... 30 and one side portion of the slide block 29. To reciprocally drive the slide block 29 with a predetermined stroke. The reciprocating movement of each material transfer chuck 30 between the front positions of the axes of the adjacent dies. And a drive rod 31.

[0018]   Further, the material transfer device 26 includes a material supply unit 10 and a forging station (I). ) Is synchronized with the forward / backward movement of the first ram 5a with respect to the front position of the axial center of the die 4a. And a slide member 32 that is reciprocally driven at a predetermined timing. Base 34 detachably attached to 32 by a plurality of attachment bolts 33, 33 Of the cutting material b supported by the base 34 and extruded from the material supply unit 10. A pair of gripping members 35 and 36 for sandwiching the peripheral surface portion from above and below, and gripping one The upper end of the guide rod 35a integrated with the member 35 is rotated by the upper end of the base 34. The link member is connected to one end of the link member 37 supported at the same time. The grip member 35 is cut by a coil spring 38 that urges the other end of 37 upward. The peripheral surface of the cutting material b is urged in a direction to clamp it from above, and the other gripping The member 36 is biased by the coil spring 39 so that the posture shown in the drawing is maintained. It is configured. Further, the link member 37 is rotated against the coil spring 38. The cylinder 40 for moving the one gripping member 35 upward to open it is It is provided at a predetermined position on the machine base 2 via a cover 41.

[0019]   On the other hand, as shown in FIG. 2, a die 4a that constitutes the forging station (a) When the cutting material b is pressed by the punch 6a, the cutting material b is temporarily pressed into a pressed state. A holding means 42 for holding is provided, and this holding means 42 is used for the first ram 5 a punch case 6b fixed to the front surface of a for supporting the punch 6a so as to be movable back and forth; The punch 6a is interposed in the punch case 6b and urges the punch 6a toward the die 4a. And a coil spring 43 that moves with the advance of the punch 6a by the first ram 5a. Between the punch 6a and the die 4a, which is pressed as shown by the chain line in FIG. When the punch 6a separates from the die 4a due to the retreat of the first ram 5a, the material b is separated. First, the cutting material b is temporarily pressed into the coil spring 43 by elastic force. It is designed to hold.

[0020]   Furthermore, below the forging station (a), the forging station (a) For the material transfer by pushing the forged cutting material b upward as the punch 6a retreats. A push-up member 44 for holding the chuck 30 is provided. The intermediate molded product pushed up by the lifting member 44 is compressed as shown by the chain line in FIG. It is clamped by the material transfer chuck 30 that has returned to above the manufacturing station (a), When it is conveyed to the front position of the shaft center of the forging station (b) by the chuck 30 of In addition, the intermediate molded products that are forged at (b) to (d) at each forging station are transferred to each material. It will be nipped by the chuck 30 and transferred to the forging station on the subsequent stage. Growling.

[0021]   Therefore, when the slide member 32 motivates the forward / backward movement of the first ram 5a. The material is supplied from the material supply unit 10 by being reciprocally driven at a fixed timing. The cutting material b whose peripheral surface is sandwiched by the pair of gripping members 35 and 36 from above and below is The slide member 32 moves forward until the first ram 5a reaches the front dead center position from the rear dead center position. Along with the operation, the cutting material b is conveyed to the front position of the shaft center of the die 4a, and the cutting material b and the die 4a are moved together. While being pressed with the punch 6a and held by the holding means 42, A pressing member that drives the binder 40 and is attached to the tip of the cylinder rod 40a. When one gripping member 35 is opened upward via the link member 37 by 40b. Together, the slide member 32 returns to the front position of the material supply unit 10 as the slide member 32 returns. The pair of gripping members 35 and 36 are adapted to be restored.

[0022]   According to the above configuration, the peripheral surface portion of the cutting material b supplied from the material supply unit 10 is The coil springs 38, 39 are provided on the slide member 32 via the base 34. The pair of gripping members 35 and 36 urged by In this state, a slide member that is reciprocally driven in synchronization with the forward / backward movement of the first ram 5a. The cutting material b gripped by the pair of gripping members 35 and 36 with the forward movement of 32 Be sure to transport the material to the forging station (a) adjacent to the material supply unit 10. It Then, it is conveyed to the forging station (a) and forged at the station (a). While the cut material b thus cut is held in the pressed state by the holding means 42, One of the gripping members 35, 36 is opened by the rotating cylinder 40. Along with the returning movement of the slide member 32, the pair of gripping members 35, 3 6 is returned to the front position of the material supply unit 10 again, and then the above-mentioned is performed again. The cutting operation supplied from the material supply unit 10 by repeating a series of operations. The material b is sequentially and continuously conveyed to the forging station (a), It will be forged in (a). In this way, the material supply provided on one side of the machine base 2 Even if the material supplied from the feeding unit 10 is a cutting material b previously cut into a predetermined size Therefore, it is possible to reliably prevent the cutting material b from being unfairly gripped and conveyed in an improper posture. As a result, the cutting material b can be satisfactorily continuously pressed.

[0023]

[Effect of device]   As described above, both of the first and second inventions are provided on one side of the machine base. Even if the material supplied from the material supply unit is a cut material that has been cut into a predetermined size in advance , The cutting material is prevented from being gripped and conveyed in an improper posture. It is possible to reliably convey the material to the forging station adjacent to the material supply section. Satisfactorily continuous forging without causing forging defects and damage to the die or punch. You can

[Brief description of drawings]

FIG. 1 is an overall schematic side view of a press forming machine equipped with a material conveying device according to the present invention and a peripheral portion thereof.

FIG. 2 is an enlarged cross-sectional view of an essential part showing the configuration of the main part of the press molding machine.

FIG. 3 is an enlarged vertical cross-sectional view of a main part showing the configuration of a material transfer device.

[Explanation of symbols]

1 Press forming machine 2 units 4a-4d die 6a-6d punch 5a 1st ram 5b 2nd ram 10 Material Supply Department 26 Material Conveyor 30 Material transfer chuck 32 Slide member 34 base 35, 36 gripping member 38 coil spring 40 cylinders 42 holding means (A) ~ (d) Forging station b cutting material

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Creator Akihiko Fujimoto             Kyoto Prefecture Kumi-gun Kumiyama-cho             46th castle Sakamura Machinery Co., Ltd.Kyoto factory             Within

Claims (2)

[Scope of utility model registration request] 1. A plurality of dies arranged in parallel on a machine base, a plurality of punches mounted on the front surface of a ram that moves back and forth toward each of the dies so as to face the dies, and the machine base. A plurality of material transfer chucks for sequentially transferring a material supplied from a material supply unit provided on one side to a plurality of forging stations configured by the dies and punches, and each of the forging stations A raw material conveying device in a press forming machine for forming a product of a predetermined shape by forging the raw material in a stepwise manner from coarse to fine, in which the cutting material previously cut to a predetermined size is supplied from the material supply section. And a driving means for driving the receiving means to reciprocate between the material supplying section and the forging station adjacent to the supplying section in synchronization with the advance / retreat operation of the ram. Material transfer device for press forming machine. 2. A plurality of dies arranged side by side on a machine base, a plurality of punches mounted on the front surface of a ram that moves back and forth toward each of the dies so as to face each die, and the machine base. A plurality of material transfer chucks for sequentially transferring a material supplied from a material supply unit provided on one side to a plurality of forging stations configured by the dies and punches, and each of the forging stations A raw material conveying device in a press forming machine for forming a product of a predetermined shape by forging a material in a stepwise manner from coarse to fine in order between the material supply section and a forging station adjacent to the supply section. A slide member that is reciprocally driven in synchronization with the advance / retreat operation of the ram, and a cutting element that is provided on the slide member so as to be openable and closable and that is supplied from the material supply unit and is cut to a predetermined size in advance. A pair of gripping members for sandwiching the peripheral surface of the material from above and below, a biasing member for biasing the gripping member in a direction of sandwiching the peripheral surface of the cutting material, and a pair of gripping members gripped by the forging station. Holding means for temporarily holding the cutting material in a pressed state during the pressing of the conveyed cutting material; and opening means for opening at least one of the holding members while the cutting material is held by the holding means. A material conveying device in a press forming machine, which is provided.