Quick-release rotary cutting die

Abstract

The utility model relates to a quick-release rotary-cut die, which comprises a lower die provided with a lower die knife edge, the lower die knife edge is provided with a material placing hole which is formed by recessing inwards from the surface of the lower die knife edge, and the material placing hole is used for placing a product; the upper die can move towards the lower die; the cutting assembly is installed on the upper die and comprises a rotary cutting swing block and a punch moving synchronously with the rotary cutting swing block, and a plurality of first convex teeth arranged in order are arranged on the outer surface of the rotary cutting swing block; the push block is installed on the lower die and provided with a plurality of second convex teeth which are arranged in order, the second convex teeth can extrude the first convex teeth and the punch to shift, the distance between the second convex teeth and a lower die knife edge is reduced, a cut product, the second convex teeth and the first convex teeth are regularly arranged, a gap capable of being separated is formed, and the rotary cutting swing block moves according to the rule. And the first convex teeth are separated from the second convex teeth, so that the backstop plate, the stripper plate and the rotary-cut swing block are dismounted under the condition that the upper die holder, the upper clamping plate and the push block are not dismounted, and the dismounting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, and in particular to a quick-release rotary cutting die. Background Art

[0002] The double-tooth peeling structure is one of the most widely used structures in the field of stamping die technology. This structure has the characteristics of good die stability during production and strong wear resistance of parts. However, no matter how good the wear resistance of the parts is, they still need regular maintenance and repair. In this case, the mold can only be dismantled and placed in the mold repair room for repair and maintenance, which will delay time and labor.

[0003] According to Chinese patent CN107020316B, an automatic rotary cutting die is disclosed, which includes a lower die, an upper die and a workpiece; the upper die includes an upper cutting edge fixing plate on which an upper cutting edge is installed, and the upper cutting edge is provided with an upper cutting edge channel; an upper profiling pressing block is provided in the upper cutting edge channel, and the upper profiling pressing block is fixedly connected to the upper die seat through an upper elastic member; the lower die includes a lower concave template provided with a spiral sliding channel and a lower elastic member, and a positioning guide rail that can slide along the sliding channel is provided in the sliding channel, and the positioning guide rail is provided with a lower die cutting edge pad, and a lower die cutting edge that cooperates with the upper cutting edge is provided at the top of the lower die cutting edge pad, and a lower die product positioning block movably connected thereto is provided at the top of the lower die cutting edge, and the outer surface of the lower die product positioning block coincides with the inner cavity of the workpiece to achieve cutting of the product, but after a period of use, the device needs to replace the worn parts, and the entire upper die must be removed to move the upper die out of the stamping equipment, which is difficult to disassemble and repair.

[0004] Therefore, it is necessary to develop a quick-release rotary cutting die to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a quick-disassembly rotary cutting die which is convenient to disassemble and easy to maintain.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a quick-release rotary cutting mold, comprising:

[0007] A lower die is provided with a lower die blade, wherein the lower die blade has a material placement hole formed by being recessed inward from a surface thereof, and the material placement hole is used for placing the product;

[0008] An upper die, movable toward the lower die;

[0009] A cutting assembly is installed on the upper die, the cutting assembly comprises a rotary cutting pendulum block and a punch moving synchronously with the rotary cutting pendulum block, the outer surface of the rotary cutting pendulum block has a plurality of orderly arranged first convex teeth, and the punch can extend into the material placement hole;

[0010] A push block is installed on the lower die, and the push block has a plurality of orderly arranged second convex teeth, and the second convex teeth can squeeze the first convex teeth. The punch is offset, and the distance between it and the blade of the lower die is reduced to cut the product. The second convex teeth and the first convex teeth are arranged regularly and have a gap for disengagement. The rotary cutting pendulum block moves according to the above rules to disengage the first convex teeth from the engagement with the second convex teeth.

[0011] Furthermore, the upper die includes an upper die seat and a stripper plate installed under the upper die seat, the cutting assembly is installed in the stripper plate, and the push block is installed in the upper die seat.

[0012] Furthermore, the stripping plate is recessed inward from its lower surface to form a receiving groove, and the receiving groove is used to receive the cutting assembly.

[0013] Furthermore, an inner positioning piece is installed in the rotary cutting pendulum block, and the inner positioning piece passes through the rotary cutting pendulum block and extends vertically downward. The end of the inner positioning piece can be extended into the material placement hole to position the product.

[0014] Furthermore, the punch is sleeved on the inner positioning piece and fixed in the rotary cutting pendulum block, and extends vertically downward from the rotary cutting pendulum block.

[0015] Furthermore, the length of the punch is smaller than the length of the inner positioning member.

[0016] Furthermore, a rotary cutting pad is fixedly installed above the rotary cutting pendulum block, one end of the inner positioning piece is fixedly connected to the rotary cutting pad, and the other end thereof passes through the rotary cutting pendulum block and extends vertically downward. The length of the inner positioning piece passing through the rotary cutting pendulum block is determined according to the height of the product.

[0017] Furthermore, the end of the push block can extend into the lower die, so that the force of the push block squeezing the rotary cutting pendulum block is transmitted to the lower die.

[0018] Furthermore, the end of the push block extends vertically downward into the stripping plate, and the bottom of the push block is located outside the rotary cutting swing block.

[0019] Furthermore, the push blocks are respectively located on four sides of the rotary cutting pendulum block to drive the punch to perform circular motion.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is a quick-release rotary cutting mold, which is characterized by convenient disassembly and easy maintenance. The second convex teeth of the push block squeeze the first convex teeth of the rotary cutting pendulum block, thereby changing the movement rules of the punch installed in the rotary cutting pendulum block, so that the punch and the lower die blade cooperate to cut the product, and the second convex teeth and the first convex teeth are arranged regularly when connected, so that there is a gap between the second convex teeth and the first convex teeth for disengagement. The rotary cutting pendulum block moves according to the above rules, so that the stop plate, the stripping plate and the rotary cutting pendulum block can be removed without removing the upper die seat, the upper clamping plate and the push block, thereby improving the disassembly efficiency and facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 This is a planar structural sectional view of a quick-release rotary cutting die of the utility model;

[0023] Figure 2 for Figure 1 The cross-sectional view of the lower die plane structure of the quick-release rotary cutting die shown;

[0024] Figure 3 for Figure 1 A cross-sectional view of the upper die plane structure of the quick-release rotary cutting die shown;

[0025] Figure 4 for Figure 1 The cross-sectional view of the planar structure of the cutting assembly and the push block of the quick-release rotary cutting die is shown.

[0026] In the figure: 1. lower die; 2. ejecting device; 3. upper die; 4. cutting assembly; 5. push block; 11. lower die base; 12. lower template; 13. discharge trough; 14. lower die blade; 15. material placement hole; 21. ejecting rod; 22. ejecting block; 31. upper die base; 32. upper clamping plate; 33. equal height sleeve; 34. stop plate; 35. stripping plate; 36. receiving groove; 37. fixing part; 41. rotary cutting pendulum block; 42. inner positioning part; 43. rotary cutting pad; 411. first convex tooth; 44. punch; 51. second convex tooth. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Please see Figures 1 to 4 The utility model is a quick-release rotary cutting mold, which includes a lower mold 1, a material ejecting device 2 installed in the lower mold 1, an upper mold 3 docking with the lower mold 1, a cutting component 4 installed in the upper mold 3, and a push block 5 for pushing the cutting component 4 to move.

[0029] Please see Figure 1 to Figure 2 The lower die 1 includes a lower die base 11 and a lower template 12 fixedly mounted on the lower die base 11. The lower die base 11 carries the lower template 12 to keep it in a horizontal state. The lower template 12 is recessed inward from its upper surface to form a discharge groove 13. The shape of the discharge groove 13 changes according to the shape of the product so that the product can enter the discharge groove 13. A lower die blade 14 is provided in the discharge groove 13. The lower die blade 14 has a feeding hole 15 that runs through its upper and lower surfaces. The diameter of the feeding hole 15 is the same as the diameter of the discharge groove 13, and its axis is the same as the axis of the discharge groove 13. When the product enters the feeding hole 15, the outer wall of the product fits the inner wall of the feeding hole 15.

[0030] Please see Figure 2 The ejecting device 2 includes an ejecting rod 21 and an ejecting block 22. The ejecting rod 21 vertically penetrates the lower die base 11 from the bottom of the lower die base 11 and extends into the discharge trough 13. The ejecting block 22 is installed in the discharge trough 13, and its shape is the same as that of the discharge trough 13. The lower surface of the ejecting rod 21 abuts against the lower surface of the ejecting block 22, and the upper surface of the ejecting block 22 can extend into the feeding hole 15 to eject the product in the feeding hole 15 and control the height of the product when cutting the product.

[0031] Please see Figure 1 and Figure 3 The upper mold 3 includes an upper mold base 31 and an upper clamping plate 32 fixedly mounted on the upper mold base 31. The upper mold base 31 carries the upper clamping plate 32 to keep it in a horizontal state. A contour sleeve 33 is installed in the upper clamping plate 32. The contour sleeve 33 extends vertically downward from the upper clamping plate 32 and is connected to a stop plate 34 and a stripping plate 35 at the end. A spacing is maintained between the stop plate 34 and the upper clamping plate 32. The stripping plate 35 is installed on the lower surface of the stop plate 34. The stripping plate 35 is recessed inward from its lower surface to form a receiving groove 36. The receiving groove 36 is used to receive the cutting component 4. A fixing part 37 is installed in the stop plate 34. The fixing part 37 penetrates the stop plate 34 from the outside of the stop plate 34 and extends into the receiving groove 36, which is used to fix the cutting component 4.

[0032] The cutting assembly 4 includes a rotary cutting pendulum block 41 and an internal positioning piece 42 located in the receiving groove 36. The rotary cutting pendulum block 41 is sleeved with the fixing piece 37 and is located in the receiving groove 36. A plurality of first protruding teeth 411 are formed on its outer surface. The arrangement position and number of the first protruding teeth 411 are changed according to needs. In this embodiment, the rotary cutting pendulum block 41 is approximately rectangular, and the first protruding teeth 411 are formed on all four sides. The first protruding teeth 411 are formed by the rotary cutting pendulum block 41 protruding outward.

[0033] A rotary cutting pad 43 is fixedly installed above the rotary cutting pendulum block 41. The rotary cutting pad 43 is sleeved on the fixing piece 37 and is located in the receiving groove 36. One end of the inner positioning piece 42 is fixedly connected to the rotary cutting pad 43, and the other end thereof passes through the rotary cutting pendulum block 41 and extends vertically downward. The length of the inner positioning piece 42 passing through the rotary cutting pendulum block 41 is determined according to the height of the product.

[0034] Please see Figure 1 and Figure 4 The cutting component 4 also includes a punch 44, which is sleeved on the inner positioning piece 42 and fixed in the rotary cutting pendulum block 41. The punch 44 extends vertically downward from the rotary cutting pendulum block 41, and the end of the punch 44 can extend into the product. Secondly, the length of the punch 44 is less than the length of the inner positioning piece 42.

[0035] One end of the push block 5 is fixed in the upper clamping plate 32, and the other end thereof vertically downwardly passes through the stop plate 34 and extends into the stripping plate 35. The bottom of the push block 5 is located on the outside of the rotary cutting pendulum block 41. Secondly, the inner surface of the push block 5 has a plurality of second convex teeth 51. The arrangement position and number of the second convex teeth 51 are changed according to the arrangement position and number of the first convex teeth 411. In this embodiment, the number of push blocks 5 is four and they are respectively located on the four sides of the rotary cutting pendulum block 41. When the push block 5 is vertically downward, the second convex teeth 51 are squeezed with the first convex teeth 411, and the rotary cutting pendulum block 41 deviates in the direction opposite to the push block 5.

[0036] When disassembly is required, the stop plate 34 and the stripper plate 35 are released from other connection relationships with the upper die base 31 and the upper clamping plate 32 through external force, so that the stop plate 34 and the stripper plate 35 are only hooked with the upper die base 31 and the upper clamping plate 32 through the second convex teeth 51 and the first convex teeth 411, and the rotary cutting pendulum block 41 is moved orderly again, so that the several first convex teeth 411 it has gradually disengage from the meshing state with the several second convex teeth 51. After the push block 5 is out of contact with the rotary cutting pendulum block 41, the stop plate 34 and the stripper plate 35 and their rotary cutting pendulum block 41 are removed on the punch.

[0037] Preferably, the second protruding teeth 51 and the first protruding teeth 411 form a regular arrangement when connected, and there is a gap between the second protruding teeth 51 and the first protruding teeth 411 for disengagement, so that the rotary cutting pendulum block 41 moves according to the above-mentioned rule, so as to achieve the removal of the stop plate 34 and the stripping plate 35 and the rotary cutting pendulum block 41 without removing the upper mold base 31, the upper clamping plate 32 and the push block 5.

[0038] Furthermore, the end of the push block 5 can extend into the lower die 1 to transmit the force of the push block 5 pressing the rotary cutting pendulum block 41 to the lower die 1 .

[0039] When the utility model is used, a quick-release rotary cutting mold is used, and the product enters the material placement hole 15, and the top material block 22 is inserted into the material placement hole 15 to control the height of the product, the upper mold 3 is lowered and docked with the lower mold 1, and the inner positioning piece 42 is inserted into the product, and the outer surface of the inner positioning piece 42 contacts the inner wall of the product. The inner positioning piece 42 and the lower mold blade 14 clamp the inner and outer surfaces of the product. At this time, the end of the punch 44 extends into the product, and the upper mold 3 further descends, and the push block 5 moves vertically downward accordingly, and the second convex tooth 51 on the inner side of the push block 5 squeezes the first convex tooth 411 on the surface of the rotary cutting pendulum block 41, and the rotary cutting pendulum block 4 1 and its punch 44 are offset in the direction opposite to the push block 5, the end of the punch 44 is offset and cooperates with the top of the lower die blade 14 to cut off a certain area of ​​the product, another second convex tooth 51 inside the push block 5 squeezes another first convex tooth 411 on the surface of the rotary cutting pendulum block 41, the rotary cutting pendulum block 41 and its punch 44 are offset in the direction opposite to the push block 5 again, the end of the punch 44 is offset and cooperates with the lower die blade 14 to cut off another area of ​​the product. In this embodiment, the push block 5 squeezes the rotary cutting pendulum block 41 to make a circular motion, so that the punch 44 surrounds and cuts off the product, so that the product is separated from the cut portion.

[0040] The utility model discloses a quick-release rotary cutting die, which has the characteristics of convenient disassembly and easy maintenance. The first convex teeth of the rotary cutting pendulum block are squeezed by the second convex teeth of the push block, and the movement rule of the punch installed in the rotary cutting pendulum block is changed, so that the punch and the lower die blade cooperate to cut the product. The second convex teeth and the first convex teeth are connected to form a regular arrangement, so that there is a gap between the second convex teeth and the first convex teeth for disengagement. The rotary cutting pendulum block moves according to the above regular movement, so that the stop plate and the stripping plate and the rotary cutting pendulum block thereof can be removed without removing the upper die seat, the upper clamping plate and the push block, thereby improving the disassembly efficiency and facilitating maintenance.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick-release peeling die, characterized in that: It includes: A lower die (1) is provided with a lower die blade (14), wherein the lower die blade (14) has a material placement hole (15) formed by being recessed inward from its surface, and the material placement hole (15) is used for placing the product; An upper mold (3) movable toward the lower mold (1); a cutting assembly (4) mounted on the upper die (3), the cutting assembly (4) comprising a rotary cutting pendulum block (41) and a punch (44) moving synchronously with the rotary cutting pendulum block (41), the outer surface of the rotary cutting pendulum block (41) having a plurality of orderly arranged first convex teeth (411), and the punch (44) being capable of extending into the material placement hole (15); A push block (5) is mounted on the lower die (1). The push block (5) has a plurality of orderly arranged second convex teeth (51). The second convex teeth (51) can squeeze the first convex teeth (411). The punch (44) is offset, and the distance between it and the lower die blade (14) is reduced to cut the product. The second convex teeth (51) and the first convex teeth (411) are arranged regularly and have a gap for disengagement. The rotary cutting pendulum block (41) moves according to the above regularity, so that the first convex teeth (411) thereof are disengaged from the meshing with the second convex teeth (51).

2. The quick-release peeling die according to claim 1, characterized in that: The upper die (3) comprises an upper die seat (31) and a stripper plate (35) installed under the upper die seat (31); the cutting assembly (4) is installed in the stripper plate (35); and the push block (5) is installed in the upper die seat (31).

3. The quick-release peeling die according to claim 2, characterized in that: The stripping plate (35) is recessed inwardly from its lower surface to form a receiving groove (36), and the receiving groove (36) is used to receive the cutting assembly (4).

4. The quick-release peeling die according to claim 1, characterized in that: An inner positioning piece (42) is installed in the rotary cutting pendulum block (41), and the inner positioning piece (42) passes through the rotary cutting pendulum block (41) and extends vertically downward. The end of the inner positioning piece (42) can be extended into the material placement hole (15) to position the product.

5. The quick-release peeling die according to claim 4, characterized in that: The punch (44) is sleeved on the inner positioning piece (42) and fixed in the rotary cutting pendulum block (41), and extends vertically downward from the rotary cutting pendulum block (41).

6. The quick-release peeling die according to claim 5, characterized in that: The length of the punch (44) is smaller than the length of the inner positioning member (42).

7. The quick-release peeling die according to claim 6, characterized in that: A rotary cutting pad (43) is fixedly mounted above the rotary cutting pendulum block (41); one end of the inner positioning piece (42) is fixedly connected to the rotary cutting pad (43); the other end of the inner positioning piece (42) penetrates the rotary cutting pendulum block (41) and extends vertically downward; the length of the inner positioning piece (42) passing through the rotary cutting pendulum block (41) is determined according to the height of the product.

8. The quick-release peeling die according to claim 1, characterized in that: The end of the push block (5) can extend into the lower die (1), so that the force of the push block (5) squeezing the rotary cutting pendulum block (41) is transmitted to the lower die (1).

9. The quick-release peeling die according to claim 2, characterized in that: The end of the push block (5) extends vertically downward into the stripping plate (35), and the bottom of the push block (5) is located outside the rotary cutting swing block (41).

10. The quick-release peeling die according to claim 9, characterized in that: The push blocks (5) are respectively located on four sides of the rotary cutting pendulum block (41) and drive the punch (44) to perform circular motion.

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