CN220805149U - Rotary cutting die for stretching piece - Google Patents
Rotary cutting die for stretching piece Download PDFInfo
- Publication number
- CN220805149U CN220805149U CN202322600343.9U CN202322600343U CN220805149U CN 220805149 U CN220805149 U CN 220805149U CN 202322600343 U CN202322600343 U CN 202322600343U CN 220805149 U CN220805149 U CN 220805149U
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- plate
- die
- rotary cutting
- sliding block
- sliding
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- 238000005520 cutting process Methods 0.000 title claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The utility model discloses a rotary-cut die for a stretching piece, which comprises an upper die and a lower die, wherein the upper die comprises an upper die seat, an upper base plate, a fixed plate and an upper stripper plate which are sequentially connected from top to bottom, and a sliding guide pillar and an inclined wedge block which sequentially penetrate through the fixed plate and the upper stripper plate are fixed on the upper base plate; a movable cavity for placing a rotary cutting mechanism is formed between the fixed plate and the upper discharging plate, the rotary cutting mechanism comprises a sliding block which is arranged in the movable cavity and matched with the movable cavity, the outer surface of the sliding block is provided with matched teeth, the inclined wedge block is provided with guide teeth, and the inclined wedge block moves downwards under the drive of the upper base plate and drives the rotary cutting mechanism to cut blanks through the matching of the guide teeth and the matched teeth; a concave template of the lower die is provided with a groove corresponding to the sliding guide post, and a reset piece for driving the inclined wedge block to recover to the initial position is arranged in the groove; the upper surface and the lower surface of the sliding block are limited by the fixed plate and the upper discharging plate and cannot incline, so that the problems that the height of a cut surface of a product is uneven, burrs are large, metal wires exist, the number of powder cuts is large and the like caused by the inclination of the sliding block are solved.
Description
Technical Field
The utility model relates to the technical field of die manufacturing, in particular to a rotary-cut die for a stretching piece.
Background
When the rotary cutting die works, the upper die firstly contacts the product by the pressure of the punch, when the upper die is downwards moved, the upper die, the product and the male die move along with the sliding block, not only upwards and downwards, but also horizontally, the blank is sheared under the action of shearing force, and the female die is displaced in different directions by utilizing the change of the contact surface of the guide plate, so that the surplus edges are cut off in sequence.
Because the sliding block and the sliding block seat can move, moving parts are worn, so that the gap between the sliding block and the oblique wedge block is larger and larger. In the conventional rotary cutting die, the sliding block is placed between the upper base plate and the fixed plate, and is not fixed up and down, as shown in fig. 7, the sliding block is easy to incline in the moving process, so that a blanking gap between a rotary cutting edge and a rotary cutting male die is large on one side and small on the other side, the blanking gap is uneven, and further the problems of uneven cut surface, large burrs, metal wires, multiple powder cutting and the like of a rotary-cut product are caused, and even the end face is seriously deformed.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides a rotary cutting die for a stretching piece, so as to solve the problems.
The aim of the utility model is realized by the following technical scheme:
The rotary-cut die for the tensile piece comprises an upper die and a lower die, wherein the upper die comprises an upper die seat, an upper base plate, a fixed plate and an upper stripper plate which are sequentially connected from top to bottom, the upper base plate is fixedly connected with the upper die seat, a sliding guide post and an inclined wedge block which sequentially penetrate through the fixed plate and the upper stripper plate are fixedly arranged on the upper base plate, and the fixed plate and the upper stripper plate are in sliding connection with the inclined wedge block; the rotary cutting mechanism comprises a sliding block which is arranged in the movable cavity and matched with the movable cavity, the outer surface of the sliding block is provided with matched teeth, one side of the inclined wedge block, which faces the sliding block, is provided with guide teeth matched with the matched teeth, and the inclined wedge block moves downwards under the drive of an upper backing plate and drives the rotary cutting mechanism to cut blanks in the circumferential direction through the cooperation of the guide teeth and the matched teeth;
The lower die comprises a female die plate and a lower die holder which are fixedly connected up and down, a groove corresponding to the sliding guide pillar is arranged on the female die plate, and a reset piece which is used for driving the sliding guide pillar to move upwards and drive the inclined wedge block to move upwards to restore to the initial position during die opening is arranged in the groove.
In the above summary of the utility model, further, the rotary cutting mechanism further includes a knife edge fixing seat fixed at the bottom of the slider and a rotary cutting knife edge fixedly connected with the knife edge fixing seat, where the knife edge fixing seat and the rotary cutting knife edge are placed in the upper discharge plate.
In the above summary, further, a rotary cutting male die for placing a product is provided in the middle of the female die plate.
In the above summary of the utility model, further, four sliding guide posts are fixed on the upper pad, grooves corresponding to the sliding guide posts one by one are arranged on the concave template, and reset pieces are arranged in the grooves.
In the above summary, further, the reset element is a nitrogen spring.
In the above summary, further, four inclined wedge blocks are slidably connected to the fixing plate and the upper discharge plate, and the inclined wedge blocks are arranged around the circumference of the sliding block in a matrix.
In the above summary of the utility model, further, a limiting block is arranged between the fixed plate and the loading and unloading plate and is fixedly connected with the fixed plate through the limiting block.
The beneficial effects of the utility model are as follows:
According to the utility model, the fixed plate and the upper discharging plate are respectively added on the upper surface and the lower surface of the sliding block, the sliding block is placed in a movable cavity formed between the fixed plate and the upper discharging plate, the sliding block can rotate in the movable cavity, and meanwhile, the upper surface and the lower surface of the sliding block are limited by the fixed plate and the upper discharging plate and cannot be inclined, so that the problems of uneven cut surface, large burrs, metal wires, multiple powder cutting and the like of a product caused by the inclination of the sliding block are solved; meanwhile, the sliding guide pillar is additionally arranged on the fixed plate and the unloading plate to guide, so that the running stability of the sliding block is improved, and the sliding guide pillar is pushed by the reset piece to enable the automatic inclined wedge block to recover to the initial position between the automatic inclined wedge block and the sliding block during die sinking, so that the next continuous cutting is facilitated.
Drawings
FIG. 1 is a front cross-sectional view of the present utility model in an open mold;
FIG. 2 is another cross-sectional view of the present utility model in the open mold;
FIG. 3 is a front cross-sectional view of the present utility model during mold closing;
FIG. 4 is a front cross-sectional view of the present utility model after the mold is fully closed;
FIG. 5 is another cross-sectional view of the present utility model after the mold is fully closed;
FIG. 6 is an enlarged view of the rotary cutting mechanism of the present utility model;
Fig. 7 is a prior art.
In the figure, the die comprises a 1-upper die holder, a 2-upper base plate, a 3-fixed plate, a 4-upper stripper plate, a 5-inclined wedge block, 51-guide teeth, 6-sliding guide columns, 7-movable cavities, 8-rotary cutting mechanisms, 81-sliding blocks, 82-matched teeth, 83-knife edge fixing seats, 84-rotary cutting edges, 9-grooves, 10-reset pieces, 11-concave templates, 12-lower die holders, 13-rotary cutting male dies and 14-limiting blocks.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
Referring to fig. 1-6, a rotary-cut die for a tensile member comprises an upper die and a lower die, wherein the upper die comprises an upper die holder 1, an upper base plate 2, a fixed plate 3 and an upper stripper plate 4 which are sequentially connected from top to bottom, the upper base plate 2 is fixedly connected with the upper die holder 1, the upper die holder 1 drives the upper base plate 2, the fixed plate 3 and the upper stripper plate 4 to move downwards together, a sliding guide post 6 and an inclined wedge block 5 which sequentially pass through the fixed plate 3 and the upper stripper plate 4 are fixed on the upper base plate 2, the fixed plate 3 and the upper stripper plate 4 are in sliding connection with the inclined wedge block 5, and the fixed plate 3 and the upper stripper plate 4 can only move a certain distance along the inclined wedge block 5 due to guide teeth 51 on the inclined wedge block 5 and can be prevented from falling off of the fixed plate 3 and the upper stripper plate 4 through the guide teeth 51;
The fixed plate 3 and the upper discharging plate 4 are fixedly connected and are provided with a movable cavity 7 for placing the rotary cutting mechanism 8, the rotary cutting mechanism 8 comprises a sliding block 81 which is arranged in the movable cavity 7 and matched with the movable cavity 7, preferably, a limiting block 14 is arranged between the fixed plate 3 and the upper discharging plate 4 and is fixedly connected through the limiting block 14, the height of the movable cavity 7 is fixed through the limiting block 14, the sliding block 81 can rotate in the movable cavity 7, but simultaneously the upper surface and the lower surface of the sliding block 81 are limited by the fixed plate 3 and the upper discharging plate 4 and cannot be inclined, and the problems that the cut surface of a product is uneven, burrs are large, metal wires exist, the cutting is excessive and the like due to the inclination of the sliding block 81 are solved; the outer surface of the sliding block 81 is provided with a matching tooth 82, one side of the inclined wedge block 5 facing the sliding block 81 is provided with a guide tooth 51 matched with the matching tooth 82, as shown in fig. 6, the inclined wedge block 5 moves downwards under the drive of the upper backing plate 2 and drives the rotary cutting mechanism 8 to cut blanks circumferentially through the matching of the guide tooth 51 and the matching tooth 82;
The lower die comprises a female die plate 11 and a lower die holder 12 which are fixedly connected up and down, a groove 9 corresponding to the sliding guide post 6 is arranged on the female die plate 11, and when the die is closed, the sliding guide post 6 is inserted into the groove 9 for positioning, so that the running stability of the sliding block 81 is further improved; in the process of closing the mould, the wedge block 5 moves downwards relative to the sliding block 81 under the action of the upper mould base 1, so as to drive the sliding block 81 to rotate, and when the mould is opened, the wedge block 5 is restored to the original position relative to the sliding block 81, therefore, a reset piece 10 for driving the sliding guide post 6 to move upwards during the upward movement of the sliding guide post 6 to drive the wedge block 5 to move upwards to restore to the original position is arranged in the groove 9, as shown in fig. 2.
The rotary cutting mechanism 8 further comprises a knife edge fixing seat 83 fixed at the bottom of the sliding block 81 and a rotary cutting knife edge 84 fixedly connected with the knife edge fixing seat 83, the knife edge fixing seat 83 and the rotary cutting knife edge 84 are arranged in the upper discharging plate 4, wherein a rotary cutting male die 13 for placing a product is arranged in the middle of the female die plate 11, when the die is closed, the discharging plate is in contact with the rotary cutting male die 13, and the rotary cutting knife edge 84 cuts blanks placed on the rotary cutting male die 13.
In the above embodiment, preferably, four sliding guide posts 6 are fixed on the upper base plate 2, grooves 9 corresponding to the sliding guide posts 6 one by one are provided on the female die plate 11, and reset pieces 10 are provided in the grooves 9.
In the above embodiment, preferably, the reset element 10 is a nitrogen spring, the nitrogen spring is small in volume, large in elastic force, long in stroke, stable in operation, precise in manufacture, long in service life, and in an instant of die opening, the sliding guide pillar 6 drives the upper base plate 2 and the inclined wedge block 5 to move upwards relative to the fixed plate 3 and the upper discharge plate 4 under the action of the nitrogen spring, so that the inclined wedge block 5 returns to the initial position, and then the upper die holder 1 drives the upper base plate 2, the fixed plate 3, the upper discharge plate 4 and the inclined wedge block 5 to move upwards together.
In the above embodiment, preferably, four wedge blocks 5 are slidably connected to the fixing plate 3 and the upper discharge plate 4, and the wedge blocks 5 are arranged around the periphery of the sliding block 81 in a matrix.
The specific working process is as follows:
when the rotary cutting die is in the die opening state, as shown in fig. 1 or fig. 2, a certain distance is reserved between the upper base plate 2 and the fixed plate 3, and at the moment, the relative position relationship between the guide teeth 51 on the inclined wedge block 5 and the matching teeth 82 on the sliding block 81 is an initial position;
Then, the upper die holder 1 drives the upper die plate 2, the fixed plate 3, the upper stripper plate 4, the sliding guide post 6 and the inclined guide post 5 to move downwards together until the bottom of the upper stripper plate 4 contacts with the upper surface of the female die plate 11, as shown in fig. 3, at this time, the distance between the upper die plate 2 and the fixed plate 3 is not changed, the initial positions of the inclined guide post 5 and the sliding block 81 are not changed, and the sliding guide post 6 is inserted into the nitrogen spring compressed in the groove 9;
Because the oblique wedge block 5 is in sliding connection with the fixed plate 3 and the upper discharge plate 4, the fixed plate 3 and the upper discharge plate 4 do not move any more, and the upper die holder 1 continues to drive the upper base plate 2, the sliding guide pillar 6 and the oblique wedge block 5 to move downwards relative to the fixed plate 3 and the upper discharge plate 4 until the bottom of the upper base plate 2 contacts with the upper surface of the fixed plate 3 and the die is completely closed, as shown in fig. 4; in this process, the plurality of wedge blocks 5 drive the sliding block 81 to rotate circumferentially through the guide teeth 51 during the downward movement, so as to drive the rotary cutting edge 84 to complete cutting, and simultaneously, the sliding guide post 6 moves downward to further compress the nitrogen spring, as shown in fig. 5;
After the rotary cutting is completed, the die needs to be opened, because the acting force of the nitrogen spring is larger, at the moment of the die opening, the sliding guide pillar 6 drives the upper base plate 2 and the inclined wedge block 5 to move upwards relative to the fixed plate 3 and the upper stripper plate 4 under the action of the nitrogen spring, the state of the figure 3 is restored, the inclined wedge block 5 is further returned to the initial position, and then the upper die holder 1 drives the upper base plate 2, the fixed plate 3, the upper stripper plate 4 and the inclined wedge block 5 to move upwards together, so that the state of the figure 1 is restored.
In the rotary cutting process, the sliding block 81 cannot incline in the movable cavity 7, so that the problems of uneven product cutting surface, large burrs, metal wires, more grinding and the like caused by the inclination of the sliding block 81 are solved.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (7)
1. The rotary-cut die for the tensile piece comprises an upper die and a lower die and is characterized in that the upper die comprises an upper die holder (1), an upper base plate (2), a fixed plate (3) and an upper stripper plate (4) which are sequentially connected from top to bottom, the upper base plate (2) is fixedly connected with the upper die holder (1), a sliding guide post (6) and an oblique wedge block (5) which sequentially penetrate through the fixed plate (3) and the upper stripper plate (4) are fixedly arranged on the upper base plate (2), and the fixed plate (3) and the upper stripper plate (4) are in sliding connection with the oblique wedge block (5); the rotary cutting mechanism (8) comprises a sliding block (81) which is arranged in the movable cavity (7) and matched with the movable cavity (7), the outer surface of the sliding block (81) is provided with matched teeth (82), one side, facing the sliding block (81), of the inclined wedge block (5) is provided with guide teeth (51) matched with the matched teeth (82), and the inclined wedge block (5) moves downwards under the driving of the upper base plate (2) and drives the rotary cutting mechanism (8) to cut blanks circumferentially through the matching of the guide teeth (51) and the matched teeth (82);
The lower die comprises a die plate (11) and a lower die holder (12) which are fixedly connected up and down, a groove (9) corresponding to the sliding guide pillar (6) is formed in the die plate (11), and a reset piece (10) which is used for driving the sliding guide pillar (6) to move upwards during the die opening process to drive the oblique wedge block (5) to move upwards and restore to the initial position is arranged in the groove (9).
2. The rotary cutting die for the tensile member according to claim 1, wherein the rotary cutting mechanism (8) further comprises a knife edge fixing seat (83) fixed at the bottom of the sliding block (81) and a rotary cutting knife edge (84) fixedly connected with the knife edge fixing seat (83), and the knife edge fixing seat (83) and the rotary cutting knife edge (84) are arranged in the upper discharging plate (4).
3. A stretch member rotary cutting die according to claim 1, characterized in that a rotary cutting punch (13) for placing a product is provided in the middle of the die plate (11).
4. A rotary cutting die for a tensile member according to claim 3, wherein four sliding guide posts (6) are fixed on the upper base plate (2), grooves (9) corresponding to the sliding guide posts (6) one by one are arranged on the female die plate (11), and reset members (10) are arranged in the grooves (9).
5. A rotary cutting die for a drawing member according to claim 4, wherein the return member (10) is a nitrogen spring.
6. The rotary cutting die for the tensile member according to claim 4, wherein four wedge blocks (5) are slidably connected to the fixing plate (3) and the upper discharge plate (4), and the wedge blocks (5) are arranged around the periphery of the sliding block (81) in a matrix.
7. The rotary cutting die for the tensile member according to claim 1, wherein a limiting block (14) is arranged between the fixed plate (3) and the upper discharging plate (4) and is fixedly connected with the fixed plate through the limiting block (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322600343.9U CN220805149U (en) | 2023-09-25 | 2023-09-25 | Rotary cutting die for stretching piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322600343.9U CN220805149U (en) | 2023-09-25 | 2023-09-25 | Rotary cutting die for stretching piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220805149U true CN220805149U (en) | 2024-04-19 |
Family
ID=90699974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322600343.9U Active CN220805149U (en) | 2023-09-25 | 2023-09-25 | Rotary cutting die for stretching piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220805149U (en) |
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2023
- 2023-09-25 CN CN202322600343.9U patent/CN220805149U/en active Active
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