JP3132714U - Grip mechanism of material supply device - Google Patents

Abstract

To obtain a grip mechanism of a material supply device that can be easily and quickly changed to a grip groove of a size and shape suitable for a material to be supplied.
As a grip mechanism of a material supply device, a number of grips extending along the same direction as the material supply direction and formed at a predetermined interval in the circumferential direction so as to fit a large number of materials having different dimensions and shapes. A fixed grip body 18 and a movable grip body 19 are constituted by a pair of opposing cylinders in which the grooves are symmetrically arranged. Grip groove selecting means for simultaneously selecting and moving grip grooves of the size and shape suitable for the material A to be supplied to the grip positions opposite to each other of the grip bodies 18 and 19 by rotating both grip bodies 18 and 19 simultaneously. Was established.
[Selection] Figure 3

Description

  The present invention relates to a grip mechanism of a material supply device used in a forging machine that mainly supplies a material to a forging station side by a predetermined length, cuts the material with a cutter, and forms the cut material into a product having a predetermined shape.

  2. Description of the Related Art Conventionally, in a forging machine that supplies a material from a material introduction port to the forging station side and forms it into a product of a predetermined shape, for example, a forging station having opposed dies and punches is provided. It is configured to be equipped with a material supply device equipped with a pair of upper and lower feed roll transfer mechanisms that feed the material supplied from the back side of the base to the forging station side through the guide holes of the machine base. A material is supplied to the forging station side by a predetermined length by rotation of a feed roll of the mechanism, the supplied material is cut by a cutter, and the cut material is formed into a product having a predetermined shape.

  By the way, according to the above-mentioned feed roll transfer mechanism, since the material is supplied to the forging station side by a predetermined length by the rotation of the pair of upper and lower feed rolls, when the terminal of the material preceding the feed roll passes, The terminal material remaining in front of the feed roll is pushed into the forging station side with the subsequent material and supplied at a predetermined length, but it is difficult to push in with only the supply force of the pair of upper and lower feed rolls Met.

  Therefore, the applicant first comprises a fixed-side grip body provided in a fixed manner on the grip body instead of the feed roll transfer mechanism, and a movable-side grip body provided so as to be close to and away from the fixed-side grip body. The material is clamped by the proximity movement of the movable grip body to the fixed grip body side, and the grip body is moved forward and backward in a certain dimension material supply direction in this state to move the material to the forging station side by a predetermined length. A material supply device equipped with a grip transfer mechanism for reliable supply was proposed previously.

Problems that the device tries to solve

  By the way, in a material supply device equipped with a grip transfer mechanism, when forging is performed by supplying materials having different dimensions and shapes, for example, a soft material such as aluminum or copper has a size and shape of the groove of the grip body. If the dimensions and shape are not accurately matched, the deformation will occur, so that a problem that the forging machine does not smoothly enter the cutting quill will occur. As a result, each time a material with a different size or shape is supplied, the grip body is fixed to the fixed and movable grip body with a grip groove of a size or shape suitable for the material to be supplied. Each had to be replaced, and there was a problem that required time and labor for the replacement work. In addition, this is not limited to the grip transfer mechanism, for example, a back stop grip mechanism disposed behind the grip transfer mechanism, and an end material processing disposed in the machine base on the front side of the grip transfer mechanism. When a grip mechanism is provided, a pair of fixed and movable grips having a grip groove of a size and shape suitable for the material to be supplied also for the pair of fixed and movable grip bodies in the back stop grip mechanism and the end material handling grip mechanism. Each body needs to be replaced, and these replacement operations also have problems that require time and effort. In particular, since the end material processing grip mechanism is provided in the machine base of the forging machine, it is more difficult to replace the fixed and movable grip bodies.

  Therefore, an object of the present invention is to provide a grip mechanism for a material supply device that can be easily and quickly changed to a grip groove having a size and shape suitable for the material to be supplied.

Means for solving the problem

  In order to solve the above problems, the device according to claim 1 of the present application includes a fixed grip body provided in a fixed shape on the grip body, and a movable grip body provided so as to be close to and away from the fixed grip body, A gripping mechanism of a material supply device that sandwiches and clamps a material by moving the movable grip body close to the fixed grip body, wherein the fixed grip body and the movable grip body extend in the same direction as the material supply direction. It consists of a pair of opposing cylinders with grooves, and the grip grooves that extend along the same direction as the material supply direction on the outer peripheral surfaces of both grip bodies are predetermined in the circumferential direction so as to fit materials of many dimensions and shapes These grip grooves are arranged symmetrically with each other on both grip bodies, while both grip bodies can be rotated simultaneously. Characterized in that it comprises a facing dimension that suits the material to be supplied to the gripping position to selectively movable gripping grooves selection means grip groove in the shape of two handles member by.

  Further, in the invention described in claim 2 of the present application, the grip groove selecting means in claim 1 includes a pair of rotating bodies disposed on one side of the fixed grip body and the movable grip body, and both the rotating bodies. Grip grooves with dimensions and shapes that match the material by rotating the two rotating bodies at the same angle and rotating both grip bodies together through the interlocking members by manual operation or electric operation. Is configured such that it can be selectively moved to grip positions opposite to each other at the same time.

  According to the invention described in claim 3 of the present application, the movable grip body in claim 1 is supported by a swing body provided swingably on the grip body, and the movable grip body is fixed via the swing body. A pressing means for pressing the grip body with a predetermined pressure or releasing the pressing is provided, and the material is held at a predetermined pressure between the movable grip body and the fixed grip body via the swinging body by a pressing operation by the pressing means. It is configured as described above.

  In addition to the configuration of claim 3, the invention described in claim 4 of the present application is provided with a detachable bearing that holds the fixed grip body on the grip body and is movable on the swinging body. Bearings that are detachable in half to hold the grip body are provided, and by removing each of these bearing parts in a half-split state, each grip body can be taken out and replaced by one-touch operation on each bearing. .

  In addition to the structure of claim 1, the invention according to claim 5 of the present application is such that the grip body is slidably supported by a support rod extending along the same direction as the material supply direction, and the grip body The grip body is moved forward by a certain dimension while the material is clamped by the fixed and movable grip body, the material is supplied for a certain length, and the grip body is moved back to its original position with the material gripping by both grip bodies released. It is characterized by having a moving means.

Effect of device

  According to the present invention, a plurality of grip grooves that extend in the same direction as the material supply direction and that are formed at a predetermined interval in the circumferential direction so as to fit a large number of materials having different dimensions and shapes are symmetrical to each other. A fixed grip body and a movable grip body are formed by a pair of opposed cylindrical bodies arranged and formed, and by simultaneously rotating both grip bodies, a material to be supplied to opposing grip positions of both grip bodies Grip groove selection means that can selectively move grip grooves of the appropriate size and shape, so that the material can be securely sandwiched and supplied accurately by both grip bodies consisting of a pair of cylindrical bodies, Moreover, it is possible to easily and quickly select and change the grip groove having a size and shape suitable for the material to be supplied. In other words, there is no need to change to a different guide member each time the dimensions and shape of the material change, and the work of changing the grip groove can be performed easily and in a short time, for example, to improve the work efficiency by a forging machine. be able to.

  Further, the grip groove selecting means is composed of a pair of rotating bodies disposed on one side of the fixed grip body and the movable grip body, and an interlocking member that rotates both the rotating bodies at the same time, and is operated manually or electrically. By rotating both rotating bodies at the same angle via interlocking members and rotating both grip bodies, the grip grooves with dimensions and shapes that match the material are simultaneously selected and moved to opposite grip positions on both grip bodies. If it is configured to be possible, the grip groove of both grip bodies can be selected and changed simultaneously and quickly to a material suitable for the size and shape of the material to be supplied, which is preferable.

  The movable grip body is supported by a rocking body provided on the grip body so as to be rockable, and a pressing means for pressing the movable grip body against the fixed grip body with a predetermined pressure via the rocking body or releasing the pressing is provided. If the material is held at a predetermined pressure between the movable grip body and the fixed grip body via the swinging body by the pressing operation by the pressing means, the material can always be held at the predetermined pressure by the pressing means. Therefore, it is possible to prevent a problem that the deformation of the material is prevented to prevent the material from being smoothly supplied to the cutting quill on the forging machine side, and the material can be securely sandwiched and supplied.

  Further, if the grip body is provided with a detachable bearing portion that holds the fixed grip body and the oscillating body is provided with a half-detachable bearing that holds the movable grip body, each bearing is provided. It is preferable that the fixed and movable grip bodies can be taken out from the respective bearings by one-touch operation and can be easily and quickly replaced with a fixed and movable grip body having another grip groove.

  In addition, the grip body is slidably supported on a support rod extending in the same direction as the material supply direction, and the material is moved forward by a certain dimension while the material is held between the fixed and movable grip bodies. If the grip body is provided with a fixed length and the grip body is moved back to its original position with the gripping of the material held by both grip bodies, the grip body is fixed by the moving means with the material held. By moving forward, the material can be supplied accurately for a certain length.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an outline of a forging machine equipped with a material supply device of the present invention. A forging machine 1 includes a plurality of dies 4... 4 in a die block 3 fixed at a predetermined position of a machine base 2. In addition, a plurality of punches 6... 6 are attached to the front surface of the ram 5 that moves forward and backward against the die block 3 so as to face the dies 4. Each of the corresponding dies 4... 4 and the punches 6.

  A quill 7 is provided on one side of the machine base 2, and a cutting knife 8 that cuts the material A across the quill 7 is disposed immediately before the quill 7. A stopper 9 that determines the protruding amount of the material A is provided on the front side of the cutting knife 8.

A material supply device 10 is provided behind the quill 8 on one side of the machine base as shown in FIG.
Specifically, the material supply device 10 includes a first guide member 11 of the material A provided behind the quill 8 and an end material processing grip disposed in the machine base 2 behind the first guide member 11. A mechanism 12, a grip transfer mechanism 13 that is provided behind the end material processing grip mechanism 12 and linearly transfers the material A to the quill 8 side in a sandwiched state, and is disposed behind the grip transfer mechanism 13. A back stop grip mechanism 14 and a second guide member 15 disposed behind the back stop grip mechanism 14 are provided. In addition, behind the second guide member 15, for example, a pair of upper and lower feed roll transfer mechanisms and guide rolls (both not shown) for supplying the material A to the grip transfer mechanism 13 as necessary are appropriately disposed. The In that case, the feed roll transfer mechanism is driven in synchronization with the grip transfer mechanism 13. Here, the grip mechanism of the present invention is applied to the end material processing grip mechanism 12 and the back stopper grip mechanism 14 together with the grip transfer mechanism 13, but the grip transfer mechanism 13 will be described as a representative example.

  As shown in FIGS. 3 and 4, the grip transfer mechanism 13 includes a grip body 17 that is slidably supported by support rods 16 and 16 that extend in the front-rear direction, and a fixed grip body 18 that is fixed to the grip body 17. And a movable grip body 19 provided so as to be able to approach and separate from the fixed grip body 18.

  As shown in FIG. 4, a rack portion 21 is provided on the rear surface of the grip body 17, and a drive motor 23 having a pinion gear 22 that meshes with the rack teeth of the rack portion 21 is provided. Then, the grip body 17 is moved forward by a certain dimension while the material A is sandwiched between the fixed and movable grip bodies 18 and 19 by forward and reverse rotation driving of the drive motor 23 to supply the material A for a certain length, and both grip bodies are provided. The grip body 17 is retracted to the original position in a state where the holding of the material A by 18 and 19 is released.

  The fixed grip body 18 and the movable grip body 19 are composed of a pair of opposing cylindrical bodies having grip grooves extending along the same direction as the material supply direction. The fixed grip body 18 is the front side of the grip body 17 in FIG. As shown in FIG. 5, the lower part is supported by bearings 24 and 24a that are detachable in half, while the movable grip body 19 is swingable on the grip body 17 so that the movable grip body 18 is swingable. The moving body 25 is supported on the front surface of the moving body 25 through bearings 26 and 26a that can be attached and detached in half. In addition, a spring 20 that constantly urges the rocking body 25 upward is interposed between the rocking body 25 and the grip body 17, while the rocking body 25 is pressed against the fixed grip body 18 with a predetermined pressure. A hydraulic cylinder (pressing means) 27 for releasing the pressing is provided in the grip body 17, and when the swinging body 25 is pressed by the hydraulic cylinder 27, the movable grip body 19 and the fixed grip body 18 are interposed via the swinging body 25. The penetrated material A is held at a predetermined pressure. Further, the bearings 24a and the swinging body 25 of the grip body 17 are removed by removing the set screws 28 and 29 from the bearings 24a and 29 of the grip body 17 and removing them from the bearings 26a of the swinging body 26. The grip bodies 18 and 19 are taken out from the bearing 26a by a one-touch operation and can be replaced with, for example, grip bodies 18A and 19A shown in FIG.

  Further, grip grooves 18a... 18j, 19a... 19j extending along the same direction as the material supply direction as shown in FIG. A large number are formed at predetermined intervals in the circumferential direction. These grip grooves 18a... 18j, 19a... 19j are arranged symmetrically with each other in both grip bodies 18 and 19, while the two grip bodies 18 and 19 are simultaneously rotated so that the grip bodies 18 and 19 face each other. A grip groove selecting means 30 capable of selectively moving a grip groove having a size and shape suitable for the material A to be supplied to the grip position, for example, the grip grooves 18a and 19a, is provided.

  As shown in FIG. 8, the grip groove selecting means 30 includes a pair of rotating bodies 31 and 32 disposed on one side of the fixed grip body 18 and the movable grip body 19, and both the rotating bodies 31 and 32. A hanging member 33 such as a belt or a chain to be hung and a handle rod 34 that is detachably provided on one rotating member 31 are manually operated by rotating the handle rod 34. By rotating the grip bodies 18 and 19 together by rotating them at the same angle, grip grooves having dimensions and shapes suitable for the material to be supplied are simultaneously placed at the grip positions opposite to each other above and below the grip bodies 18 and 19. It is configured to allow selective movement. As the grip groove selecting means 30, besides a hanging means using a pair of rotating bodies 31, 32 and a belt or a chain, for example, a gear mechanism (not shown) using a pair of gears and an interlocking gear meshing with the gears. You may make it carry out by.

  Further, the configurations of the end material processing grip mechanism 12 and the back stop grip mechanism 14 are basically the same as the configuration of the grip transfer mechanism 13, that is, the end material processing grip mechanism 12 and the back stop grip mechanism. 14 is a grip transfer mechanism described above except that it is not provided with traveling means consisting of a rack portion and a drive motor having a pinion gear and is fixed to the support rods 16 and 16, and the length of the fixed and movable grip body is short. Since the configuration is the same as that of the configuration 13, the description of the specific configuration and operation is omitted.

  Further, the first guide member 11 and the second guide member 15 are cylindrical and arranged in parallel to a position where the axial center is radially displaced with respect to the central axis of the material supply path. The shaft core is supported so as to be rotatable. A number of guide holes are formed so that the centers of the guide holes are positioned on a circumference that draws a line connecting the axis of the first guide member 11 and the center axis of the material supply path as a radius. The first guide member 11 and the second guide member 15 are provided with rotating means 35 and 36 such as a rack bar that are shifted in the circumferential direction. By rotating the first guide member 11 and the second guide member 15 by the rotating means 35 and 36, the guide hole having a size and shape suitable for the material A is selectively moved on the central axis of the material supply path, and the stop position thereof. Is suitably fixed and held by a fixing means. Thereby, it is not necessary to bother to replace the guide member with another guide hole, and the guide hole changing operation can be performed easily and easily in a short time.

  Further, the stopper 9 is provided in front of the material supply port on the forging station side in the machine base 2 and determines the cutting length of the extruded material A. The stopper 9 is moved to the avoidance position, for example, the machine base as the cutting knife 8 moves. 2 is provided on the end face of the material A, and an avoiding means 9a by a cylinder or the like is provided on the end face of the material A so as to avoid the occurrence of frictional scratches accompanying the contact with the stopper 9.

Next, the operation of the material supply device according to the present embodiment will be described.
First, as shown in FIG. 2, the material A penetrates from the second guide member 15 to the back stop grip mechanism 14, the grip transfer mechanism 13, the end material processing grip mechanism 12, the second guide member 16, and the quill 7. Insert through. The grip body 17 is driven by the forward rotation of the drive motor 23 while the back gripping mechanism 14 and the material back stopping mechanism 12 are opened while the gripping mechanism 13 is fixed and the movable grip bodies 18 and 19 hold the material A. Is moved forward to supply the material A to the quill 7 side for a predetermined length. As a result, when the long material A is supplied to the quill 7 side as usual, the fixed and movable grip bodies 18 and 19 formed of the cylindrical body of the grip transfer mechanism 13 having the grip grooves 18a and 19a suitable for the supplied material A are provided. As a result, the material A is securely clamped and accurately pushed forward from the opening of the quill 7 by a predetermined length. Thereby, for example, even after the terminal of the preceding material passes through both the grip bodies 18 and 19 of the grip transfer mechanism 13, the preceding material is a succeeding material that is securely clamped by the both grip bodies 18 and 19. The quill 7 is pushed forward by a predetermined length from the opening. When the material A is pushed out for a predetermined length in this way, the drive motor 23 is stopped, and the transfer of the material A by the grip body 17 is stopped.

  Then, the extruded material A comes into contact with the stopper 9 and the cutting length of the material A is determined. Thereafter, the cutting knife 8 cuts the material A across the quill 7. The cutting material is taken out from the cutting knife 8, sequentially transferred to each forging station, forged, and formed into a product having a predetermined shape. Further, the stopper 9 is provided with avoiding means 9a that is retracted with the movement of the cutting knife 8 to avoid the generation of frictional scratches due to contact with the stopper 9 on the end surface of the material A. At the time of cutting with the knife 8, it is possible to prevent the occurrence of friction scratches caused by the contact with the stopper 9 on the front end surface of the material.

  When the cutting is completed, the material A is moved back by about 1 mm through the grip body 17 by the reverse drive of the pinion gear 22 by the drive motor 23, and the end material processing grip mechanism 12 and the back stopper grip mechanism 14 are moved back in the retracted position. And the movement of the material A is stopped. In this way, by holding the material A by the end material processing grip mechanism 12 and the back stopper grip mechanism 14 after the material A is slightly retracted, the cutting surface of the reciprocating cutting knife 8 and the front end surface of the material A Can be prevented.

  Then, after the cutting knife 8 returns to the cutting start position, the fixed grip 18 and the movable grip body 19 of the grip transfer mechanism 13 are opened, and the grip body 17 is moved via the rack portion 21 by the reverse drive of the pinion gear 22 by the drive motor 23. Move back to the original position in a straight line. After the movement is completed, the end material processing grip mechanism 12 and the back stop grip mechanism 14 are opened, and the feeding operation described above is performed repeatedly by fixing the grip transfer mechanism 13 and holding the material A between the movable grip bodies 18 and 19. become.

  The grip groove selecting means 30 is a pair of rotating bodies 31 and 32 disposed on one side of the fixed grip body 18 and the movable grip body 19, and a hanging body that rotates both the rotating bodies 31 and 32 simultaneously. 33, and the rotating body 31, 32 is rotated at the same angle by the hanging body 33 through manual operation by the handle bar 34, and both the grip bodies 18, 19 are rotated together. Since the grip groove of the size and shape can be selected and moved simultaneously to the grip positions opposite to each other of the grip bodies 18 and 19, the dimensions of the material to which the grip grooves of both the grip bodies 18 and 19 are to be supplied. It is possible to select and change the one that matches the shape simultaneously and quickly. Therefore, there is no need to change to a different guide member each time the dimensions and shape of the material change, and the work of changing the grip groove can be done easily and in a short time to improve the working efficiency of the forging machine. Can do.

  In addition, the movable grip body 19 is supported by a rocking body 25 that is swingably provided on the grip body 17, and the movable grip body 19 is pressed against the fixed grip body 18 with a predetermined pressure or pressed via the rocking body 25. Is provided so that the material A is held at a predetermined pressure between the movable grip body 19 and the fixed grip body 18 via the oscillating body 25 by a pressing operation by the hydraulic pressing means 27. Therefore, it is possible to always hold the material A at a predetermined pressure by the hydraulic pressing means 27, prevent the material A from being deformed and prevent the material A from being smoothly supplied to the cutting quill 7 on the forging machine side. Nevertheless, the material A can be securely clamped and supplied.

  In addition, the grip body 17 is provided with detachable bearings 24 and 24a for holding the fixed grip body 18 and detachable in a split shape for holding the movable grip body 19 on the rocking body 25. Since the bearings 24, 24a, 26, 26a are removed in half, the fixed and movable grip bodies are taken out from the remaining bearings 24a, 26a by one-touch operation, and fixed and movable with different grip grooves. The grip bodies 18 and 19 can be easily and quickly replaced.

  In the above-described embodiment, a hydraulic cylinder is used as the pressing means 27. However, the pressing means 27 is not limited to a hydraulic cylinder, and other pressing means such as an air cylinder or a mechanical pressing mechanism using a spring may be used. Of course.

  It is a schematic explanatory drawing of the forging machine which concerns on this invention.   It is a vertical side view of the raw material supply apparatus with which the forging machine is equipped.   It is a side view of a grip transfer mechanism.   FIG. 4 is a side view taken along the line AA in FIG. 3.   It is explanatory drawing of the bearing part of the grip body of a grip transfer mechanism.   It is explanatory drawing of another grip body.   It is explanatory drawing of a grip body.   It is explanatory drawing of the rotation means of a grip body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Material supply apparatus 12 End material processing grip mechanism 13 Grip transfer mechanism 14 Back stop grip mechanism 16 Support rod 17 Grip main body 18 Fixed grip body 19 Movable grip body 21 Rack part 22 Pinion gear 23 Drive motor 24 Bearing 24a Bearing 25 Oscillator 26 Bearing 26a Bearing 27 Hydraulic cylinder 30 Grip groove selection means

Claims (5)

  A fixed grip body provided on the grip body in a fixed form and a movable grip body provided so as to be close to and away from the fixed grip body, and the material is sandwiched by the proximity movement of the movable grip body to the fixed grip body. A grip mechanism of a material supply device for clamping, wherein a fixed grip body and a movable grip body are composed of a pair of opposing cylindrical bodies having grip grooves extending along the same direction as the material supply direction. A plurality of grip grooves extending in the same direction as the material supply direction are formed on the outer peripheral surface of the outer peripheral surface at a predetermined interval in the circumferential direction so as to fit a material of many dimensions and shapes. While the grip bodies are arranged symmetrically with each other, both grip bodies are rotated simultaneously to supply the grip positions of the grip bodies opposite to each other. Suits dimensions Utosuru material gripping mechanism of the material feed apparatus, characterized in that the grip groove shape and includes a selectively movable gripping groove selection means.   The grip groove selecting means includes a pair of rotating bodies disposed on one side of the fixed grip body and the movable grip body, and an interlocking member that rotates both the rotating bodies at the same time. The interlocking member can be operated manually or electrically. By rotating both rotating bodies through the same angle and rotating both grip bodies, it is possible to select and move grip grooves with dimensions and shapes that match the material to the opposite grip positions of both grip bodies at the same time. The grip mechanism of the material supply apparatus according to claim 1, wherein   The movable grip body is supported by an oscillating body swingably provided on the grip body, and pressing means for pressing the movable grip body against the fixed grip body with a predetermined pressure via the oscillating body or releasing the pressing is provided. 2. The material supply according to claim 1, wherein the material is configured to be held at a predetermined pressure between the movable grip body and the fixed grip body via the swinging body by a pressing operation by the pressing means. The grip mechanism of the device.   The grip body is provided with a half-detachable bearing that holds the fixed grip body, and the oscillating body is provided with a half-detachable bearing that holds the movable grip body. 4. The grip mechanism of a material supply device according to claim 3, wherein each grip body can be taken out and replaced by one-touch operation by removing it in a half-split state.   The grip body is slidably supported by a support rod extending in the same direction as the material supply direction, and the grip body is moved forward by a certain size while the grip body is fixed and the material is sandwiched by the movable grip body. 2. The grip of the material supply device according to claim 1, further comprising a moving means for supplying the material for a predetermined length and retreating the grip body to the original position in a state in which the material clamping by both grip bodies is released. mechanism.

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