CN215614773U - Forging die - Google Patents

Abstract

The utility model discloses a forging die which comprises a base, a punch and a limiting mechanism, wherein the base defines a channel with one open end; the punch is movably arranged in the channel towards a first direction of the opening end of the channel, the punch comprises a body and a protruding structure, the body is provided with a bottom end corresponding to the sealing end of the channel, and the protruding structure is arranged at the bottom end of the body and protrudes out of the side wall of the body; the limiting structure is detachably mounted at the opening end of the channel and is used for being in butt fit with the protruding structure when the punch moves along the first direction so as to limit the punch to be separated from the channel. The utility model aims to solve the problems that when the mold is changed, all molds need to be disassembled, the failed molds can be taken out, and a large amount of manpower, material resources and time are wasted.

Description

Forging die

Technical Field

The utility model relates to the technical field of forging and pressing, in particular to a forging die.

Background

With the development of forging technology, die structures for automated production are becoming more and more popular in the forging field. In the design of closed warm forging automation mould product, mould structure is complicated usually to lead to when the retooling, the workman often need to all dismantle this inefficacy mould top and peripheral mould when dismantling some inefficacy moulds, just can take out the inefficacy mould, extravagant a large amount of manpower and materials, and retooling efficiency is very low. In addition, receive the structure limit of the mould of automatic closed warm forging, the mould that the part lies in lower die barrel even need break away from the lathe with whole die barrel, just can dismantle out wherein the cushion, and this just leads to die change time further by the extension, is unfavorable for production.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a forging die, and aims to solve the problems that when a die is replaced, all dies need to be disassembled, and only the failed die can be taken out, and a large amount of manpower, material resources and time are wasted.

In order to achieve the above object, the present invention provides a forging die, including:

a base defining a channel with one open end;

the punch is movably arranged in the channel in a first direction towards the opening end of the channel and comprises a body and a protruding structure, the body is provided with a bottom end corresponding to the sealing end of the channel, and the protruding structure is arranged at the bottom end of the body and protrudes out of the side wall of the body; and the number of the first and second groups,

and the limiting structure is detachably arranged at the opening end of the channel and is used for being in butt fit with the protruding structure when the punch moves along the first direction so as to limit the punch to be separated from the channel.

Optionally, the base has a top end corresponding to the opening end of the channel, and a threaded hole is formed in the top end of the base;

the limiting structure is provided with a mounting hole in a penetrating mode, and the limiting structure is installed on the top end of the base through a first bolt sequentially penetrating through the mounting hole and the threaded hole.

Optionally, the protruding structure and the bottom end of the body together constitute a bottom end structure of the punch;

the inner contour of the opening of the passage is adapted to the outer contour of the bottom structure of the punch.

Optionally, the protruding structure includes two protruding portions, and the two protruding portions are disposed oppositely on two sides of the body.

Optionally, a first adjusting block and a second adjusting block are formed on an inner wall of an opening end of the passage, the first adjusting block and the second adjusting block are symmetrically arranged in the radial direction of the passage, a main groove portion is defined between an inner side wall of the first adjusting block and an inner side wall of the second adjusting block, two ends of the first adjusting block and two ends of the second adjusting block are spaced to form two auxiliary groove portions, and the main groove portion and the two auxiliary groove portions penetrate through to form an opening of the passage together;

the limiting structure comprises a limiting block, and the limiting block is arranged in one of the two auxiliary groove parts.

Optionally, in the first direction, the protrusion is obliquely arranged toward the first side of the opening end of the channel to a direction close to the body;

the first adjusting block, the second adjusting block and the limiting block face to the second side of the sealing end of the channel and are matched with the first side of the protruding portion.

Optionally, a distance between an end of the first adjusting block and an end of the second adjusting block defining the sub-groove portion is defined as a groove width D1 of the sub-groove portion, the width of the limiting block corresponding to the groove width of the sub-groove portion is D2, the width of the protruding portion corresponding to the groove width of the sub-groove portion is D3, and D3< D2< D1.

Optionally, the first adjusting block, the second adjusting block, and the limiting block are flush with the side surface of the sealing end of the channel.

Optionally, the base includes a first cushion block, a second cushion block and a third cushion block, which are stacked, the first cushion block defines a slide way with two open ends, and the second cushion block blocks one end of the slide way to define the channel together with the first cushion block.

Optionally, the first cushion block, the second cushion block and the third cushion block are connected by a second bolt.

According to the technical scheme, the forging die comprises a base, a punch and a limiting structure, the punch is movably arranged in the channel along a first direction, a protruding structure is arranged at the bottom end of the punch, and the limiting structure is arranged at the opening end of the channel; the punch is provided with an initial position and a punching position, the punch moves from the initial position to the punching position along the first direction in the punching process, and when the punch is located at the punching position, the protruding structure is in abutting fit with the limiting structure, so that the punch can be limited to continue moving along the first direction, and the punch is prevented from completely separating from the channel; simultaneously, limit structure detachably installs the open end of passageway, when the drift became invalid and need to be changed, will limit structure dismantles, and it is right to cancel the limiting displacement of drift, and convenient operative employee will the drift is followed dismantle on the forging mould, avoid when dismantling, need dismantle whole mould and get off and dismantle the drift on the mould again and change, so, need not to waste a large amount of manpower and material resources and go to dismantle the maintenance, save a large amount of time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of a forging die according to the present invention;

FIG. 2 is a schematic view of the third head block of FIG. 1;

FIG. 3 is a top view of the punch of FIG. 1;

FIG. 4 is a cross-sectional view of the punch of FIG. 3;

fig. 5 is a schematic view of a limiting block in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the forging process, because uncontrollable factors can lead to the mould to become invalid, the operative employee often need to get rid of all above the mould that should become invalid and peripheral mould when dismantling some inefficacy moulds, just can take out the mould that becomes invalid and change the maintenance, need drop into a large amount of manpowers, extravagant a large amount of material resources and time carry out the retooling.

In view of the above, fig. 1 is a schematic diagram of an embodiment of a forging die according to the present invention, and the forging die will be mainly described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the forging die 100 includes a base 1, a punch 2 and a limiting structure 3, wherein the base 1 defines a channel 15 with an open end; the punch 2 is movably arranged in the channel 15 towards a first direction of an opening end of the channel 15, the punch 2 comprises a body 21 and a protruding structure 22, the body 21 is provided with a bottom end corresponding to a sealing end of the channel 15, and the protruding structure 22 is arranged at the bottom end of the body 21 and protrudes out of a side wall of the body 21; the limiting structure 3 is detachably mounted at the opening end of the channel 15, and the limiting structure 3 is used for being in abutting fit with the protruding structure 22 when the punch 2 moves along the first direction so as to limit the punch 2 to be separated from the channel 15.

In the technical scheme of the utility model, the forging die 100 comprises a base 1, a punch 2 and a limiting structure 3, wherein the punch 2 is movably arranged in the channel 15 along a first direction, a protruding structure 22 is arranged at the bottom end of the punch 2, and the limiting structure 3 is arranged at the opening end of the channel 15; wherein, the punch 2 has an initial position and a punching position, during the punching process, the punch 2 moves from the initial position to the punching position along the first direction, when the punch 2 is at the punching position, the protruding structure 22 is in abutting fit with the limiting structure 3, so that the punch 2 can be limited to continue moving along the first direction, and the punch 2 is prevented from completely separating from the channel 15; simultaneously, limit structure 3 detachably installs the open end of passageway 15, when 2 inefficacy of drift need be changed, will limit structure 3 dismantles, and it is right to cancel the limiting displacement of drift 2, make things convenient for the operative employee will drift 2 is followed dismantle on the forging mould 100, avoid when dismantling, need dismantle the drift 2 that dismantles on the mould again with whole mould and change, so, need not to waste a large amount of manpower and material resources and go to dismantle the maintenance, save a large amount of time.

The installation manner of the limiting structure 3 is not limited, in an embodiment, the limiting structure 3 is installed on the base 1 through a first bolt 4, and in another embodiment, the limiting structure 3 is installed on the base 1 through a positioning pin. In addition, for the convenience of disassembly, the disassembly direction of the limiting structure 3 may preferably be along the first direction, and for the convenience of description, the channel 15 is defined to extend along the up-down direction, i.e. the up-down direction is the first direction. Specifically, please continue to refer to fig. 1, in the present embodiment, the base 1 has a top end corresponding to the opening end of the channel 15, and a threaded hole 16 is formed on the top end of the base 1; the limiting structure 3 is provided with a mounting hole 31 in a penetrating manner, and the limiting structure 3 is mounted on the top end of the base 1 through a first bolt 4 which sequentially penetrates through the mounting hole 31 and the threaded hole 16. In fact, the first bolt 4 sequentially penetrates through the mounting hole 31 and the threaded hole 16 to fix the limiting structure 3 on the base 1, and compared with the arrangement mode that the limiting structure 3 is mounted on the base 1 through the positioning pin, the arrangement mode that the limiting structure 3 is mounted on the base 1 through the first bolt 4 is more stable; in addition, the limit structure 3 is installed on the top end of the base 1 and fixed by the first bolt 4, and can be operated from bottom to top when being disassembled and assembled, so that even if other components are installed on the upper end of the base 1, such as the fourth cushion block 5 shown in fig. 1, the limit structure 3 can be disassembled from bottom to top without disassembling and assembling other components as long as no blocking component is arranged above the limit structure 3, and further the punch 2 can be disassembled.

With continued reference to fig. 1 and 4, the raised structure 22 and the bottom end of the body 21 together form a bottom structure 23 of the punch 2; the inner contour 151 of the opening of the channel 15 is adapted to the outer contour 231 of the bottom structure 23 of the punch 2. In this way, after the limiting structure 3 is removed, since the inner contour 151 of the opening of the passage 15 is matched with the outer contour 231 of the bottom end structure 23, when the punch 2 is lifted upwards, the bottom end structure 23 can smoothly pass through the opening of the passage 15, so that the punch 2 can be removed.

The protruding structure 22 can be implemented in various ways. In one embodiment, the protruding structure 22 is disposed in a ring shape and is sleeved on the bottom end of the body 21; in another embodiment, the protrusion structure 22 is a protrusion protruding from a sidewall of the bottom end of the body 21. Referring to fig. 3 and 4, in the present embodiment, the protruding structure 22 includes two protruding portions 221, the two protruding portions 221 are protruding from the sidewall of the bottom end of the body 21 and are oppositely disposed on two sides of the body 21, and compared with the annular design, the design of the protruding structure 22 of the present embodiment satisfies the requirement of matching with the limiting structure 3 for limiting, and simultaneously saves more materials and reduces the cost.

When the protruding structures 22 are provided as two protruding portions 221, the shape of the opening of the channel 15 can be adaptively adjusted, and only when the limiting structure 3 is installed at the opening end of the channel 15, the limiting structure can be in limited fit with the protruding structures 22, and after the limiting structure 3 is removed, the shape of the opening of the channel 15 is enough for the bottom end structure 23 to pass through. In view of this, in the present embodiment, a first adjusting block 152 and a second adjusting block 153 are formed on the inner wall of the opening end of the passage 15, and the first adjusting block 152 and the second adjusting block 153 are symmetrically arranged in the radial direction of the passage 15; specifically, referring to fig. 1 and 2, the first adjusting block 152 and the second adjusting block 153 are both arc-shaped blocks and are integrally formed with the inner wall of the channel 15, the first adjusting block 152 and the second adjusting block 153 are arranged on the inner wall of the channel 15 at intervals along the circumferential direction of the channel 15, and the inner arc surfaces of the first adjusting block 152 and the second adjusting block 153 are arranged oppositely. A main slot portion 154 is defined between the inner side wall of first adjustment block 152 and the inner side wall of second adjustment block 153, and main slot portion 154 is used for body 21 to pass through, and in particular, the inner contour of main slot portion 154 may be designed to be similar to the outer contour of body 21. Two ends of the first adjusting block 152 and two ends of the second adjusting block 153 form two sub-groove portions 155 at intervals, specifically, one of the ends of the first adjusting block 152 and the corresponding adjacent end of the second adjusting block 153 form one sub-groove portion 155 at intervals, another sub-groove portion 155 is formed between the other end of the first adjusting block 152 and the other end of the second adjusting block 153, and the two sub-groove portions 155 are used for two convex portions 221 to pass through, in particular, the inner contour 1 of the sub-groove portion 155 may be designed to be similar to the outer contour shape of the convex portion 221. The main groove portion 154 and the two auxiliary groove portions 155 penetrate through to jointly form an opening of the channel 15, the limiting structure 3 comprises a limiting block 32, the limiting block 32 is installed in one of the two auxiliary groove portions 155, the limiting block 32 is arranged to reduce the caliber of the opening of the channel 15, so that the bottom end structure 23 cannot pass through the reduced opening of the channel 15, and after the limiting structure 3 is disassembled, the opening jointly formed by the main groove portion 154 and the two auxiliary groove portions 155 is enough for the bottom end structure 23 to pass through, so that the punching work of the punch 2 can be ensured to be smoothly carried out while the effect that the punch 2 is easy to disassemble is achieved.

In addition, since the opening is formed by the main groove portion 154 and the two sub-groove portions 155, and the bottom end structure 23 is formed by the bottom end of the main body 21 and the two protrusions 221, the structural design has the following functions: the punch 2 is in with the punch 2 is packed into in the passageway 15 back, can rotate make boss 221 with vice slot part 155 dislocation, so, punch 2 is when punching press work, even take place rotatoryly because of reasons such as vibrations, first adjusting block 152 second adjusting block 153 also can with boss 221 butt cooperation plays limiting displacement, can reduce on the one hand limiting structure 3 receives the frequency and the intensity of assaulting, extension limiting structure 3's life-span, on the other hand, can guarantee better that punch press work of punch 2 goes on smoothly.

Referring to fig. 2 and 3, in the first direction, the protrusion 221 is disposed obliquely toward the first side of the opening end of the channel 15 to the direction close to the body 21; the first adjusting block 152, the second adjusting block 153 and the stopper 32 are fitted to the first side of the protrusion 221 toward the second side of the closed end of the passage 15. In this embodiment, the first side is inclined toward the body 21, the second side is inclined toward the protrusion 221, the inclination angle of the first side is equal to the inclination angle of the second side, and the inclination is set so that the protrusion 221 can be tightly abutted to the first adjusting block 152 and the second adjusting block 153 during the punching process of the punch 2, and the inclination is set so that the impact force of the protrusion 221 on the first adjusting block 152 and the second adjusting block 153 can be reduced during the punching process, so as to reduce the wear, and at the same time, the punching process can be limited to move linearly in the first direction.

Referring to fig. 2, 3 and 5, through repeated tests of the inventor, it is found that a distance between an end of the first adjusting block 152 and an end of the second adjusting block 153 defining the sub-groove portion 155 is defined as a groove width D1 of the sub-groove portion 155, a width of the limiting block 32 corresponding to the groove width of the sub-groove portion 155 is D2, a width of the protruding portion 221 corresponding to the groove width of the sub-groove portion 155 is D3, and D3< D2< D1. In this embodiment, the distance between the end of the first adjustment block 152 and the end of the second adjustment block 153 of the sub-groove 155 is defined as the groove width D1 of the sub-groove 155, the groove width of the stop block 32 corresponding to the groove width of the sub-groove 155 is D2, and D2< D1 is defined, so that the stop block 32 can be easily removed from the sub-groove 155 when being disassembled; the width of the protruding portion 221 corresponding to the groove width of the sub-groove portion 155 is D3, defining D3< D1, for the purpose of enabling the protruding portion 221 to conveniently pass through the sub-groove portion 155 when the punch 2 is disassembled; d3< D2 is defined, and the purpose is to prevent the stopper 32 from being unable to limit the protrusion 221.

Referring to fig. 1, the first adjusting block 152, the second adjusting block 153 and the limiting block 32 are disposed flush with a side surface of the closed end of the channel 15. In this embodiment, the first adjusting block 152 and the second adjusting block 153 are disposed in parallel and level, and the purpose of the present invention is to ensure that the lower side surface of the first adjusting block 152, the lower side surface of the second adjusting block 153 and the lower side surface of the limiting block 32 are at the same height at the corresponding positions, so that when the punch is abutted to the protruding structure 22, the punch can be in full contact with the protruding structure 22 at all places, and the stress of the punch 2 is balanced.

Referring to fig. 1, the base 1 includes a first cushion block 11, a second cushion block 12 and a third cushion block 13 which are stacked, the first cushion block 11 defines a slide 112 with two open ends, and the second cushion block 12 blocks one end of the slide 112 to define the channel 15 together with the first cushion block 11. In this embodiment, the first cushion block 11, the second cushion block 12, and the third cushion block 13 are stacked to form the base 1, a slide rail 112 with two open ends is formed in the first cushion block 11, and one end of the slide rail 112 is blocked by the second cushion block 12, referring to fig. 1, the inner side wall of the slide rail 112 and the upper end surface of the second cushion block 12 jointly define the channel 15, and the lower end of the punch 2 penetrates through the slide rail 112 and is movably connected with the second cushion block 12. Specifically, a mounting cavity is formed in the second cushion block 12, a punching rod is mounted in the mounting cavity, the punching rod can move in the first direction and is connected with the bottom end of the punch 2 so as to drive the punch 2 to move in the first direction.

In addition, the height of the third cushion block 13 is not limited, and the height of the base 1 can be adjusted by changing the height of the third cushion block 13, so that the forging die 100 can be adapted to more occasions; meanwhile, the first cushion block 11, the second cushion block 12 and the third cushion block 13 are arranged in a mode, so that the base 1 is more convenient to maintain, when a certain cushion block goes wrong, the whole base 1 does not need to be disassembled and replaced, and only the corresponding failure part needs to be replaced.

Further, referring to fig. 1, the first block 11, the second block 12 and the third block 13 are connected by a second bolt 14. In this embodiment, the first cushion block 11 is provided with first screw holes 111 penetrating through two end faces of the first cushion block 11, second screw holes 121 penetrating through two end faces of the second cushion block 12 are provided at positions of the second cushion block 12 corresponding to the first screw holes 111, third screw holes 131 are provided at positions of the third cushion block 13 corresponding to the second screw holes 121, and the second bolts 14 sequentially penetrate through the first screw holes 111, the second screw holes 121 and the third screw holes 131 to tightly abut and fix the first cushion block 11, the second cushion block 12 and the third cushion block 13 to prevent the first cushion block 11, the second cushion block 12 and the third cushion block 13 from shaking.

With continued reference to fig. 1, the forging die 100 further includes a die core 6 and an outer ring assembly 7, the die core 6 is disposed inside the outer ring assembly 7, a die cavity 8 is formed in the die core 6, and the die cavity 8 cooperates with the punch 2 for punching a workpiece.

In addition, referring to fig. 1, the forging die 100 further includes a fourth cushion block 5, the fourth cushion block 5 is fixedly connected between the outer ring assembly 7 and the third cushion block 13, a through hole 51 is formed in the fourth cushion block 5, the through hole 51 is arranged at two ends of the first direction in an open manner, an ejection structure 52 is sleeved in the through hole 51, the ejection structure 52 can move in the through hole 51 along the first direction, and when the stamping is completed, the ejection structure 52 is used for ejecting the stamped workpiece out of the die cavity 8, so that an operator can take out the workpiece conveniently, and the work efficiency is improved.

Further, the forging die 100 further includes a plurality of ejector push rods, each of which extends along a first direction, and one end of each of the ejector push rods is connected to the third pad 13, and the other end of each of the ejector push rods penetrates through the second pad 12 and the first pad 11 to be connected to the ejector structure 52, and the ejector push rods can extend and retract along the first direction to drive the ejector structure 52 to move along the first direction.

The number of the ejection push rods is not limited, and the ejection structure 52 can be driven to move so as to eject the processed workpiece, specifically, in this embodiment, repeated tests by the inventor show that when the number of the ejection push rods is set to 6, the ejection structure 52 can eject the processed workpiece, and can drive the ejection structure 52 to do linear motion along the first direction, that is, the processed workpiece cannot be tilted.

In addition, forging mould 100 still includes and sprays circle 9, it locates to spray circle 9 the upper end of outer lane subassembly 7 is used for right forging mould 100 cools off, avoids forging mould 100 high temperature causes the damage.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A forging die, comprising:

a base defining a channel with one open end;

the punch is movably arranged in the channel in a first direction towards the opening end of the channel and comprises a body and a protruding structure, the body is provided with a bottom end corresponding to the sealing end of the channel, and the protruding structure is arranged at the bottom end of the body and protrudes out of the side wall of the body; and the number of the first and second groups,

and the limiting structure is detachably arranged at the opening end of the channel and is used for being in butt fit with the protruding structure when the punch moves along the first direction so as to limit the punch to be separated from the channel.

2. The forging die of claim 1, wherein the base has a top end corresponding to the open end of the channel, the top end of the base having a threaded bore;

the limiting structure is provided with a mounting hole in a penetrating mode, and the limiting structure is installed on the top end of the base through a first bolt sequentially penetrating through the mounting hole and the threaded hole.

3. The forging die of claim 1, wherein the raised structure and the bottom end of the body together constitute a bottom end structure of the punch;

the inner contour of the opening of the passage is adapted to the outer contour of the bottom structure of the punch.

4. The forging die of claim 1, wherein the raised structure includes two raised portions, the two raised portions being disposed opposite each other on either side of the body.

5. The forging die of claim 4, wherein a first adjusting block and a second adjusting block are formed on the inner wall of the opening end of the channel, the first adjusting block and the second adjusting block are symmetrically arranged in the radial direction of the channel, a main groove part is defined between the inner side wall of the first adjusting block and the inner side wall of the second adjusting block, two ends of the first adjusting block and two ends of the second adjusting block are separated to form two auxiliary groove parts, and the main groove part and the two auxiliary groove parts are communicated to form an opening of the channel together;

the limiting structure comprises a limiting block, and the limiting block is arranged in one of the two auxiliary groove parts.

6. The forging die as recited in claim 5, wherein in the first direction, the boss portion is disposed obliquely toward a first side of the open end of the passage toward a direction approaching the body;

the first adjusting block, the second adjusting block and the limiting block face to the second side of the sealing end of the channel and are matched with the first side of the protruding portion.

7. The forging die of claim 5, wherein a distance between an end of the first adjustment block and an end of the second adjustment block defining the sub groove portion is defined as a groove width D1 of the sub groove portion, the stopper has a width D2 corresponding to the groove width of the sub groove portion, and the protrusion has a width D3 corresponding to the groove width of the sub groove portion, D3< D2< D1.

8. The forging die of claim 5, wherein the first adjusting block, the second adjusting block and the limiting block are flush with the side surface of the closed end of the channel.

9. The forging die of claim 1, wherein the base includes a first block, a second block, and a third block arranged in a stack, the first block defining a slide opening at both ends, the second block being arranged to close off one end of the slide to define the channel together with the first block.

10. The forging die of claim 9, wherein the first block, the second block, and the third block are connected by a second bolt.

Images