CN211541507U

CN211541507U - Sheet punching machine

Info

Publication number: CN211541507U
Application number: CN201922428365.5U
Authority: CN
Inventors: 林育群; 许伟
Original assignee: Xiamen Municipal Engineering Research Institute Co ltd
Current assignee: Xiamen Municipal Engineering Research Institute Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-09-22
Anticipated expiration: 2029-12-28

Abstract

The utility model belongs to the technical field of stamping device's technique and specifically relates to a sheet punching machine is related to. The punching machine comprises a punching assembly, a rack, a base, a first positioning mechanism, a second positioning mechanism, a first driving assembly and a second driving assembly, wherein the first driving assembly is used for driving a first positioning plate and a second positioning plate to move; the second positioning mechanism comprises a third positioning plate and a fourth positioning plate, and the third positioning plate and the fourth positioning plate can be close to or far away from each other; the moving directions of the third positioning plate and the fourth positioning plate are vertical to the moving directions of the first positioning plate and the second positioning plate. The utility model discloses has following effect: 1. the influence of the offset of the material to be cut on the punching precision in the punching process is effectively prevented; 2. the operation of the operator is convenient, and the use feeling is better.

Description

Sheet punching machine

Technical Field

The utility model belongs to the technical field of stamping device's technique and specifically relates to a sheet punching machine is related to.

Background

At present, a sheet punching machine can cut a larger sheet material into sheets with required sizes and shapes, and the sheet punching machine is widely applied to punching of packaging materials in the packaging industry, punching of test samples in scientific research units and the like.

The existing punching machine generally comprises a base and a punching assembly, when the punching machine is used, a material to be cut is placed on the base, the relative positions of the material to be cut and the punching assembly are adjusted, and then the punching assembly is driven to move to complete punching of the material to be cut.

The above prior art solutions have the following drawbacks: in the actual operation process, because the error when installing the cutter and the surface of waiting to cut the material are not level and smooth enough, be difficult to guarantee that the cutter cuts along the direction of the perpendicular to material upper surface of waiting to cut, the cutter is certain inclination with waiting to cut the material upper surface, and in the cutting process, the cutter treats the pressure of the vertical direction of cutting the material and can be because above-mentioned inclination makes the displacement of waiting to cut the material for the base emergence horizontal direction, and predetermined die-cut position squints, influences die-cut precision.

Disclosure of Invention

Not enough to prior art exists, the utility model aims at providing a sheet punching machine, the technical problem that solve is: how to prevent to wait to cut material skew in the die-cut process and produce the influence to die-cut precision.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model discloses a sheet punching machine, including die-cut subassembly, frame, base, first positioning mechanism, second positioning mechanism, first drive assembly and second drive assembly, the die-cut subassembly sets up in the frame, first positioning mechanism includes first locating plate and second locating plate, first locating plate and second locating plate all mobilizable setting on the base, and can be close to each other or keep away from, first locating plate and second locating plate are used for the centre gripping material of waiting to cut when being close to each other; the first driving assembly is used for driving the first positioning plate and the second positioning plate to approach or depart from each other; the second positioning mechanism comprises a third positioning plate and a fourth positioning plate, the third positioning plate and the fourth positioning plate are movably arranged on the base and can be close to or far away from each other, and the third positioning plate and the fourth positioning plate are used for clamping materials to be cut when the third positioning plate and the fourth positioning plate are close to each other; the second driving assembly is used for driving the third positioning plate and the fourth positioning plate to approach or depart from each other; the moving directions of the third positioning plate and the fourth positioning plate are vertical to the moving directions of the first positioning plate and the second positioning plate.

Through adopting above-mentioned technical scheme, place the material of waiting to cut on the base earlier during the use, then operate first drive assembly and make first locating plate and second locating plate be close to the centre gripping each other and wait to cut the material, thereby wait to cut the unable motion direction skew of following first locating plate and second locating plate of material this moment, then operate second drive assembly so that third locating plate and fourth locating plate are close to the centre gripping each other and wait to cut the material, thereby wait to cut the unable motion direction skew of following third locating plate and fourth locating plate of material this moment, because the motion direction of third locating plate and fourth locating plate is perpendicular with the motion direction of first locating plate and second locating plate, so wait to cut the material and can't follow skew all around, so effectively prevented to wait to cut the material skew to produce the influence to the die-cutting precision in the die-cut process.

The present invention may be further configured in a preferred embodiment as: the first driving assembly comprises a first bidirectional screw, a first moving sleeve and a second moving sleeve; the first bidirectional screw is provided with a first screw section and a second screw section, the threads of the first screw section and the second screw section are opposite, the first movable sleeve is sleeved on the first screw section in a threaded manner, and the second movable sleeve is sleeved on the second screw section in a threaded manner; the base is provided with a first limiting groove, and the first limiting groove is used for limiting the first moving sleeve and the second moving sleeve so that the first moving sleeve and the second moving sleeve are driven to move along the length direction of the first bidirectional screw rod; the first positioning plate is fixedly connected with the first movable sleeve, and the second positioning plate is fixedly connected with the second movable sleeve.

Through adopting above-mentioned technical scheme, because first spiral shell section and second spiral shell section screw thread are opposite, first removal cover and second removal cover only can follow the length direction motion of first two-way screw when driven under the effect of first spacing groove, so first removal cover and second removal cover can corresponding be close to or keep away from when first two-way screw rotates along not equidirectional, because first locating plate and first removal cover fixed connection, second locating plate and second removal cover fixed connection, so first locating plate and second locating plate can corresponding be close to or keep away from when first two-way screw rotates.

The present invention may be further configured in a preferred embodiment as: the first bidirectional screw is arranged in the first limiting groove.

By adopting the technical scheme, the first bidirectional screw rod is not easy to collide and damage, and the service life of the first bidirectional screw rod is prolonged.

The present invention may be further configured in a preferred embodiment as: the reversing assembly comprises a first end face gear, a second end face gear and a reversing rod, the first end face gear is fixedly sleeved on the first bidirectional screw rod, the second end face gear is meshed with the first end face gear, and the second end face gear is fixedly sleeved on the reversing rod; the length axis directions of the first bidirectional screw and the reversing rod are mutually vertical.

Through adopting above-mentioned technical scheme, the second terminal surface gear can corresponding rotation when the reversing lever rotates, and then also can corresponding rotation with the first terminal surface gear of second terminal surface gear meshing, thereby first two-way screw rod also can rotate, so only need rotate the reversing lever and just enable first two-way screw rod and rotate, because first two-way screw rod and reversing lever length axis direction mutually perpendicular, so the operation personnel can operate so that first two-way screw rod rotates at the direction of a convenient operation to the reversing lever, operation personnel's operation is comparatively convenient.

The present invention may be further configured in a preferred embodiment as: and a first rotating handle is fixedly arranged at one end of the reversing rod, which deviates from the second end face gear.

Through adopting above-mentioned technical scheme, first rotation handle has increased operation personnel's application of force area, and operation personnel's use is felt better.

The present invention may be further configured in a preferred embodiment as: the second driving assembly comprises a second bidirectional screw, a third moving sleeve and a fourth moving sleeve, the second bidirectional screw is provided with a third screw section and a fourth screw section, the threads of the third screw section and the fourth screw section are opposite, the third moving sleeve is sleeved on the third screw section in a threaded manner, and the fourth moving sleeve is sleeved on the fourth screw section in a threaded manner; the length axis direction of the second bidirectional screw is vertical to the length axis direction of the first bidirectional screw; the base is provided with a second limiting groove, the second limiting groove is communicated with the first limiting groove, and the second limiting groove is used for limiting the third moving sleeve and the fourth moving sleeve so that the third moving sleeve and the fourth moving sleeve are driven to move along the length direction of the second bidirectional screw rod; the third positioning plate is fixedly connected with the third movable sleeve, and the fourth positioning plate is fixedly connected with the fourth movable sleeve.

Through adopting above-mentioned technical scheme, because third spiral section and fourth spiral section screw thread are opposite, third remove set and fourth removal cover only can follow the length direction motion of second two-way screw when driven under the effect of second spacing groove, so third remove set and fourth removal set can be corresponding when the second two-way screw rotates along not equidirectional being close to or keeping away from, because third locating plate and third remove set fixed connection, fourth locating plate and fourth removal set fixed connection, so third locating plate and fourth locating plate can be corresponding when the second two-way screw rotates be close to or keep away from. Simultaneously because the length axis direction of second bidirectional screw is perpendicular with the length axis direction of first bidirectional screw, so the direction of motion of third locating plate and fourth locating plate can be perpendicular with the direction of motion of first locating plate and second locating plate, and first locating plate, second locating plate, third locating plate and fourth locating plate homoenergetic are treated the not equidirectional location of cutting the material, so treat that the location performance of cutting the material is good, treat that the material of cutting is difficult for the skew in stamping process.

The present invention may be further configured in a preferred embodiment as: the second bidirectional screw is arranged in the second limiting groove.

By adopting the technical scheme, the second bidirectional screw rod is not easy to collide and damage, and the service life of the second bidirectional screw rod is prolonged.

The present invention may be further configured in a preferred embodiment as: and a second rotating handle is fixedly arranged at the end part of the second bidirectional screw rod.

Through adopting above-mentioned technical scheme, the second rotates the handle and has increased operation personnel's application of force area, and operation personnel's use is felt better.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the positioning performance of the material to be cut is good, and the influence of the offset of the material to be cut on the punching precision in the punching process is effectively prevented;

2. the first bidirectional screw is not easy to collide and damage, and the service life of the first bidirectional screw is prolonged;

3. the operation of the operator is more convenient, and the use feeling is better;

4. the second bidirectional screw rod is not easy to collide and damage, and the service life of the second bidirectional screw rod is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a sheet punching machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of a first positioning mechanism, a first drive assembly and a reversing mechanism coupling provided in FIG. 1;

fig. 3 is a schematic view of a second positioning mechanism and a second drive assembly connection provided in fig. 1.

In the drawings, 1, a blanking assembly; 2. a frame; 3. a base; 4. a first positioning mechanism; 41. a first positioning plate; 42. a second positioning plate; 5. a second positioning mechanism; 51. a third positioning plate; 52. a fourth positioning plate; 6. a first drive assembly; 61. a first bidirectional screw; 611. a first helical segment; 612. a second helical segment; 62. a first moving sleeve; 63. a second movable sleeve; 7. a second drive assembly; 71. a second bidirectional screw; 711. a third helical segment; 712. a fourth helical segment; 72. a third movable sleeve; 73. a fourth movable sleeve; 8. a first limit groove; 9. a commutation assembly; 91. a first face gear; 92. a second face gear; 93. a reversing lever; 10. a first rotating handle; 11. a second rotating handle; 12. a second limit groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a punching machine, including die-cut subassembly 1, frame 2, base 3, first positioning mechanism 4, second positioning mechanism 5, first drive assembly 6 (not shown in fig. 1) and second drive assembly 7 (not shown in fig. 1), die-cut subassembly 1 sets up in frame 2, and die-cut subassembly 1 is used for treating the cutting material and carries out die-cut. The first positioning mechanism 4 comprises a first positioning plate 41 and a second positioning plate 42, the first positioning plate 41 and the second positioning plate 42 can be square plates, the first positioning plate 41 and the second positioning plate 42 can be movably arranged on the base 3 and can be close to or far away from each other, and the first positioning plate 41 and the second positioning plate 42 are used for clamping a material to be cut when the first positioning plate 41 and the second positioning plate 42 are close to each other, so that the material to be cut cannot deviate along the movement direction of the first positioning plate 41 and the second positioning plate 42; the first driving assembly 6 is used for driving the first positioning plate 41 and the second positioning plate 42 to move closer to or away from each other. The second positioning mechanism 5 comprises a third positioning plate 51 and a fourth positioning plate 52, the third positioning plate 51 and the fourth positioning plate 52 can be square plates, the third positioning plate 51 and the fourth positioning plate 52 can be movably arranged on the base 3 and can be close to or far away from each other, and the third positioning plate 51 and the fourth positioning plate 52 are used for clamping a material to be cut when the third positioning plate 51 and the fourth positioning plate 52 are close to each other, so that the material to be cut cannot deviate along the movement direction of the third positioning plate 51 and the fourth positioning plate 52; the second driving assembly 7 is used for driving the third positioning plate 51 and the fourth positioning plate 52 to move close to or away from each other; the moving directions of the third positioning plate 51 and the fourth positioning plate 52 are perpendicular to the moving directions of the first positioning plate 41 and the second positioning plate 42, so that the material to be cut cannot deviate around under the action of the first positioning plate 41, the second positioning plate 42, the third positioning plate 51 and the fourth positioning plate 52, and the influence of the deviation of the material to be cut on the punching precision in the punching process is effectively prevented.

With regard to the specific arrangement of the first driving assembly 6, as shown in fig. 1 and 2, the first driving assembly 6 includes a first double-screw 61, a first moving sleeve 62 and a second moving sleeve 63; the first bidirectional screw 61 is provided with a first screw section 611 and a second screw section 612, the threads of the first screw section 611 and the second screw section 612 are opposite, the first moving sleeve 62 is sleeved on the first screw section 611 in a threaded manner, and the second moving sleeve 63 is sleeved on the second screw section 612 in a threaded manner; the base 3 is provided with a first limiting groove 8, the first limiting groove 8 can be a square groove, correspondingly, the first moving sleeve 62 and the second moving sleeve 63 can be square sleeves, and the first limiting groove 8 is used for limiting the first moving sleeve 62 and the second moving sleeve 63 so that the first moving sleeve 62 and the second moving sleeve 63 are driven to move along the length direction of the first bidirectional screw 61; the first positioning plate 41 and the first movable sleeve 62 are fixedly connected, the fixed connection mode can be welding or integrated forming, the second positioning plate 42 and the second movable sleeve 63 are fixedly connected, and the fixed connection mode can also be welding or integrated forming, so that the first positioning plate 41 and the second positioning plate 42 can also move synchronously along with the first movable sleeve 62 and the second movable sleeve 63 when the first movable sleeve 62 and the second movable sleeve 63 move. Because the threads of the first screw segment 611 and the second screw segment 612 are opposite, the first moving sleeve 62 and the second moving sleeve 63 only move along the length direction of the first bidirectional screw 61 when being driven by the first limiting groove 8, so that the first moving sleeve 62 and the second moving sleeve 63 correspondingly approach or separate from each other when the first bidirectional screw 61 rotates along different directions, and the first positioning plate 41 and the second positioning plate 42 correspondingly approach or separate from each other. Preferably, the first bidirectional screw 61 can be disposed inside the first limiting groove 8, so that the first bidirectional screw 61 is not easily damaged by collision, and the service life of the first bidirectional screw 61 is prolonged.

In order to make the operation of the operator more convenient, as shown in fig. 2, the sheet punching machine further comprises a reversing assembly 9, the reversing assembly 9 comprises a first end face gear 91, a second end face gear 92 and a reversing rod 93, the first end face gear 91 is fixedly sleeved on the first bidirectional screw 61, the fixed sleeving mode can be a key connection mode, the second end face gear 92 is meshed with the first end face gear 91, the second end face gear 92 is fixedly sleeved on the reversing rod 93, and the fixed sleeving mode can also be a key connection mode; therefore, when the reversing lever 93 rotates, the second end face gear 92 correspondingly rotates, and further the first end face gear 91 meshed with the second end face gear 92 correspondingly rotates, so that the first bidirectional screw 61 also rotates, and therefore the first bidirectional screw 61 can rotate only by rotating the reversing lever 93. The longitudinal axis directions of the first bidirectional screw 61 and the reversing lever 93 are perpendicular to each other, so that an operator can operate the reversing lever 93 in a direction convenient for operation to rotate the first bidirectional screw 61, and the operation of the operator is convenient. Preferably, one end of the reversing rod 93, which is away from the second end face gear 92, can be fixedly provided with a first rotating handle 10, the first rotating handle 10 can be circular, the first rotating handle 10 and the reversing rod 93 can be connected in a welding or bolt manner, and the first rotating handle 10 increases the force application area of an operator, so that the operator can feel better in use.

Regarding the specific arrangement of the second driving assembly 7, as shown in fig. 1 and 3, the second driving assembly 7 includes a second bidirectional screw 71, a third moving sleeve 72 and a fourth moving sleeve 73, the second bidirectional screw 71 has a third screw section 711 and a fourth screw section 712, the third screw section 711 and the fourth screw section 712 are opposite in screw thread, the third moving sleeve 72 is threadedly sleeved on the third screw section 711, and the fourth moving sleeve 73 is threadedly sleeved on the fourth screw section 712. The base 3 is provided with a second limiting groove 12, the second limiting groove 12 can be a square groove, correspondingly, the third moving sleeve 72 and the fourth moving sleeve 73 can be square sleeves, the second limiting groove 12 is communicated with the first limiting groove 8, and the second limiting groove 12 is used for limiting the third moving sleeve 72 and the fourth moving sleeve 73, so that the third moving sleeve 72 and the fourth moving sleeve 73 are driven to move along the length direction of the second bidirectional screw 71; the third positioning plate 51 is fixedly connected with the third movable sleeve 72 by welding or integral molding, the fourth positioning plate 52 is fixedly connected with the fourth movable sleeve 73 by welding or integral molding, and therefore, when the third movable sleeve 72 and the fourth movable sleeve 73 move, the third positioning plate 51 and the fourth positioning plate 52 can move along with the third movable sleeve 72 and the fourth movable sleeve 73. The longitudinal axis direction of the second bidirectional screw 71 is perpendicular to the longitudinal axis direction of the first bidirectional screw 61; therefore, the moving directions of the third positioning plate 51 and the fourth positioning plate 52 are perpendicular to the moving directions of the first positioning plate 41 and the second positioning plate 42, and the first positioning plate 41, the second positioning plate 42, the third positioning plate 51 and the fourth positioning plate 52 can all position different sides of the material to be cut, so that the positioning performance of the material to be cut is good, and the material to be cut is not easy to deviate in the stamping process.

Finally, as shown in fig. 1, the second bidirectional screw 71 can be disposed inside the second limiting groove 12, so that the second bidirectional screw 71 is not easily damaged by collision, and the service life of the second bidirectional screw 71 is prolonged. In addition, the end of the second bidirectional screw 71 can be fixedly provided with a second rotating handle 11, the second rotating handle 11 can be circular, the connection mode of the second rotating handle 11 and the second bidirectional screw 71 can be welding or integral molding, and the second rotating handle 11 increases the force application area of the operator, so that the use feeling of the operator is better.

The implementation principle of the embodiment is as follows: when the cutting machine is used, a material to be cut is placed on the base 3, then the first rotating handle 10 is rotated to enable the reversing rod 93 to rotate, the second end face gear 92 fixedly sleeved on the reversing rod 93 rotates and drives the first end face gear 91 meshed with the reversing rod to rotate, the first bidirectional screw 61 rotates, the first moving sleeve 62 and the second moving sleeve 63 which are sleeved on different screw sections of the first bidirectional screw 61 in a threaded manner can correspondingly approach or separate from each other under the action of the first limiting groove 8, the corresponding first positioning plate 41 and the second positioning plate 42 can approach or separate from each other, the distance between the first positioning plate 41 and the second positioning plate 42 is adjusted to be matched with the material to be cut, the first positioning plate 41 and the second positioning plate 42 clamp the material to be cut, and the material to be cut cannot move along the moving direction of the first positioning plate 41 and the second positioning plate 42. Then, the second rotating handle 11 is rotated to rotate the second bidirectional screw 71, so that the third moving sleeve 72 and the fourth moving sleeve 73, which are threaded on different screw segments of the second bidirectional screw 71, can correspondingly approach or separate away under the action of the second limiting groove 12, the corresponding third positioning plate 51 and the fourth positioning plate 52 can also correspondingly approach or separate away, the distance between the third positioning plate 51 and the fourth positioning plate 52 is adjusted to be matched with the material to be cut, and the third positioning plate 51 and the fourth positioning plate 52 clamp the material to be cut, so that the material to be cut cannot deviate along the moving direction of the third positioning plate 51 and the fourth positioning plate 52. Because the moving directions of the third positioning plate 51 and the fourth positioning plate 52 are perpendicular to the moving directions of the first positioning plate 41 and the second positioning plate 42, the first positioning plate 41, the second positioning plate 42, the third positioning plate 51 and the fourth positioning plate 52 can all position different sides of the material to be cut, the material to be cut cannot deviate around, and therefore the influence of the deviation of the material to be cut on the punching precision in the punching process is effectively prevented.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sheet punching machine, includes die-cut subassembly (1), frame (2) and base (3), and die-cut subassembly (1) sets up on frame (2), its characterized in that: the cutting machine is characterized by further comprising a first positioning mechanism (4), a second positioning mechanism (5), a first driving assembly (6) and a second driving assembly (7), wherein the first positioning mechanism (4) comprises a first positioning plate (41) and a second positioning plate (42), the first positioning plate (41) and the second positioning plate (42) are movably arranged on the base (3) and can be close to or away from each other, and the first positioning plate (41) and the second positioning plate (42) are used for clamping a material to be cut when the first positioning plate (41) and the second positioning plate (42) are close to each other;

the first driving assembly (6) is used for driving the first positioning plate (41) and the second positioning plate (42) to move close to or away from each other;

the second positioning mechanism (5) comprises a third positioning plate (51) and a fourth positioning plate (52), the third positioning plate (51) and the fourth positioning plate (52) are movably arranged on the base (3) and can be close to or far away from each other, and the third positioning plate (51) and the fourth positioning plate (52) are used for clamping materials to be cut when the third positioning plate (51) and the fourth positioning plate (52) are close to each other;

the second driving assembly (7) is used for driving the third positioning plate (51) and the fourth positioning plate (52) to move close to or away from each other;

the moving directions of the third positioning plate (51) and the fourth positioning plate (52) are perpendicular to the moving directions of the first positioning plate (41) and the second positioning plate (42).

2. A die press as claimed in claim 1, wherein: the first driving assembly (6) comprises a first bidirectional screw (61), a first moving sleeve (62) and a second moving sleeve (63); the first bidirectional screw (61) is provided with a first screw section (611) and a second screw section (612), the threads of the first screw section (611) and the second screw section (612) are opposite, the first moving sleeve (62) is sleeved on the first screw section (611) in a threaded mode, and the second moving sleeve (63) is sleeved on the second screw section (612) in a threaded mode;

a first limiting groove (8) is formed in the base (3), and the first limiting groove (8) is used for limiting the first moving sleeve (62) and the second moving sleeve (63) so that the first moving sleeve (62) and the second moving sleeve (63) are driven to move along the length direction of the first bidirectional screw (61);

the first positioning plate (41) is fixedly connected with the first movable sleeve (62), and the second positioning plate (42) is fixedly connected with the second movable sleeve (63).

3. A die press as claimed in claim 2, wherein: the first bidirectional screw (61) is arranged in the first limiting groove (8).

4. A die press as claimed in claim 3, wherein: the reversing assembly (9) comprises a first face gear (91), a second face gear (92) and a reversing rod (93),

the first end face gear (91) is fixedly sleeved on the first bidirectional screw (61), the second end face gear (92) is meshed with the first end face gear (91), and the second end face gear (92) is fixedly sleeved on the reversing rod (93);

the length axis directions of the first bidirectional screw (61) and the reversing rod (93) are mutually vertical.

5. A die cutter as claimed in claim 4, wherein: and a first rotating handle (10) is fixedly arranged at one end of the reversing rod (93) departing from the second end face gear (92).

6. A die cutter as claimed in claim 5, wherein: the second driving assembly (7) comprises a second bidirectional screw (71), a third moving sleeve (72) and a fourth moving sleeve (73), the second bidirectional screw (71) is provided with a third screw section (711) and a fourth screw section (712), the threads of the third screw section (711) and the fourth screw section (712) are opposite, the third moving sleeve (72) is sleeved on the third screw section (711) in a threaded manner, and the fourth moving sleeve (73) is sleeved on the fourth screw section (712) in a threaded manner;

the longitudinal axis direction of the second bidirectional screw (71) is perpendicular to the longitudinal axis direction of the first bidirectional screw (61);

a second limiting groove (12) is formed in the base (3), the second limiting groove (12) is communicated with the first limiting groove (8), and the second limiting groove (12) is used for limiting the third moving sleeve (72) and the fourth moving sleeve (73) so that the third moving sleeve (72) and the fourth moving sleeve (73) are driven to move along the length direction of the second bidirectional screw (71);

the third positioning plate (51) is fixedly connected with the third movable sleeve (72), and the fourth positioning plate (52) is fixedly connected with the fourth movable sleeve (73).

7. A die cutter as claimed in claim 6, wherein: the second bidirectional screw (71) is arranged inside the second limiting groove (12).

8. A die press as claimed in claim 7, wherein: a second rotating handle (11) is fixedly arranged at the end part of the second bidirectional screw rod (71).