Elastic material returning structure of punching die

Abstract

The utility model discloses an elastic material returning structure of a punching die, and relates to the technical field of material returning structures. The device comprises a material returning plate, a first telescopic rod and a first spring, a die frame is arranged on the outer wall of the material returning plate, a punching plate is slidably connected into the die frame, and a through hole corresponding to the material returning plate in size is formed in the punching plate. According to the elastic material returning structure of the punching die, the pressing mechanism is arranged on the punching plate, so that when the punching plate is not completely separated from a workpiece for material returning in the later period, the material returning plate cannot be affected by the punching plate to generate displacement and the like, the material returning plate can be stably pressed on the surface of the workpiece, and then it is ensured that the workpiece cannot move along with the punching plate; and effective elastic material returning of the workpiece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of blanking structures, in particular to an elastic blanking structure for a punching die. Background Technique

[0002] When punching workpieces such as metal plates, a punching die will be used. In order to avoid adhesion between the punching device and the workpiece, an elastic blanking structure, namely components such as a blanking plate and a spring, will be set on the die, so that when the punching device moves upward, the elastic blanking structure can separate the punching device from the workpiece.

[0003] The blanking plate is pressed on the surface of the workpiece under the control of elastic components such as springs, and the blanking plate is connected to the punching device. When the punching device moves under the control of a hydraulic cylinder, the punching device itself will be affected by the hydraulic cylinder and generate certain vibrations, so that the blanking plate in contact with the punching device will also be affected by the vibrations, resulting in the spring at the blanking plate deforming under the external force, so that the blanking plate is not in complete contact with the workpiece. When the punching device is not completely separated from the workpiece, the blanking plate cannot stably press the workpiece, making it impossible to separate and blank the punching device from the workpiece. In view of the deficiencies of the prior art, we propose an elastic blanking structure for a punching die to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an elastic blanking structure for a punching die, which solves the problem that the blanking plate cannot stably press the workpiece when the punching device is not completely separated from the workpiece.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: An elastic blanking structure for a punching die includes a blanking plate, a first telescopic rod and a first spring. A die holder is arranged on the outer wall of the blanking plate. A punching plate is slidably connected inside the die holder. A through hole corresponding to the size of the blanking plate is opened on the punching plate. A pressing mechanism is arranged on the punching plate. The pressing mechanism includes:

[0006] A fixed shell, which is fixedly connected to the inner wall of the through hole;

[0007] A counterweight block, which is slidably arranged below the fixed shell, and the bottom of the counterweight block abuts against the top of the blanking plate;

[0008] A second telescopic rod, which is arranged between the fixed shell and the counterweight block.

[0009] Preferably, a positioning groove is opened on the top of the blanking plate, and one end of the fixed shell is clamped inside the positioning groove.

[0010] Preferably, the bottom of the counterweight block abuts against the inner bottom of the positioning groove, and a clamping component is arranged on the inner bottom of the positioning groove.

[0011] Preferably, the clamping component includes:

[0012] A clamping block, which is fixedly connected to the inner bottom of the positioning groove, and the clamping block is clamped inside the counterweight;

[0013] An arc-shaped block and a connecting telescopic rod, which are connected to each other, and one end of the arc-shaped block and the connecting telescopic rod is slidably arranged inside the clamping block;

[0014] A connecting spring, which is sleeved on the outer wall of the connecting telescopic rod.

[0015] Preferably, a connecting groove is formed on the outer wall of the clamping block, and both the connecting telescopic rod and the connecting spring are arranged inside the connecting groove.

[0016] Preferably, a clamping groove is formed at the bottom of the counterweight, and both the clamping block and the arc-shaped block are clamped inside the clamping groove.

[0017] Preferably, a hydraulic cylinder is arranged at the top end of the mold frame, and one end of the hydraulic cylinder is connected to the top of the punching plate.

[0018] Preferably, one end of the first telescopic rod is fixedly connected to the inner top of the mold frame, and the other end of the first telescopic rod is fixedly connected to the top of the stripping plate.

[0019] The utility model discloses an elastic stripping structure for a punching die, and the beneficial effects thereof are as follows: The elastic stripping structure for the punching die, by arranging a pressing mechanism on the punching plate, when the punching plate is not completely separated from the workpiece for stripping in the later stage, the stripping plate will not be displaced due to the influence of the punching plate, so that the stripping plate can be stably pressed on the surface of the workpiece, thereby ensuring that the workpiece will not move along with the punching plate and ensuring effective elastic stripping of the workpiece. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a plan view of the punching plate, the mold frame and the stripping plate of the present utility model;

[0023] Figure 3Schematic diagram of the stripper plate, the first spring and the clamping assembly of the present utility model;

[0024] Figure 4 Internal structure sectional view of the punching plate and the counterweight of the present utility model;

[0025] Figure 5 Schematic diagram of the clamping block and the arc-shaped block of the present utility model;

[0026] Figure 6 Internal structure sectional view showing the clamping block of the present utility model.

[0027] In the figure:

[0028] 1. Stripper plate;

[0029] 2. First telescopic rod;

[0030] 3. First spring;

[0031] 4. Mold frame; 41. Punching plate; 42. Hydraulic cylinder; 43. Through hole;

[0032] 5. Pressing mechanism; 51. Fixed shell; 52. Counterweight; 53. Second telescopic rod; 54. Positioning groove;

[0033] 6. Clamping assembly; 61. Clamping block; 62. Connecting groove; 63. Arc-shaped block; 64. Connecting telescopic rod; 65. Connecting spring; 66. Card slot. Detailed implementation mode

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] By providing an elastic stripper structure for a punching die in the embodiments of the present application, the problem that the stripper plate cannot stably press the workpiece when the punching device is not completely separated from the workpiece is solved, and stable pressing of the workpiece is achieved.

[0036] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0037] The embodiments of the present utility model disclose an elastic stripper structure for a punching die.

[0038] According to the appendix Figure 1-6As shown in the figure, it includes a stripper plate 1, a first telescopic rod 2, and a first spring 3. One end of the first telescopic rod 2 is fixedly connected to the inner top of the mold frame 4, and the other end of the first telescopic rod 2 is fixedly connected to the top of the stripper plate 1. The first spring 3 is sleeved on the outer wall of the first telescopic rod 2, and one end of the first spring 3 is fixedly connected to the inner top of the mold frame 4, and the other end of the first spring 3 is fixedly connected to the top of the stripper plate 1. The outer wall of the stripper plate 1 is provided with a mold frame 4. A punching plate 41 is slidably connected inside the mold frame 4. Through holes 43 corresponding to the size of the stripper plate 1 are formed in the punching plate 41. That is, when the punching plate 41 moves up and down, the punching plate 41 will not be hindered by the stripper plate 1. And when the punching plate 41 moves to the position in contact with the top of the lower mold, the stripper plate 1 just snaps into the through holes 43. A hydraulic cylinder 42 is provided at the top end of the mold frame 4, and one end of the hydraulic cylinder 42 is connected to the top of the punching plate 41, as shown in the appendix Figure 1 As shown in the figure, the bottom of the stripper plate 1 abuts against the top of the workpiece placed at the lower mold. When the punching plate 41 moves away from the workpiece under the push of the hydraulic cylinder 42, the workpiece will not move with the punching plate 41, avoiding the workpiece from adhering to the punching plate 41, so that with the assistance of the stripper plate 1, the first telescopic rod 2, and the first spring 3, elastic separation between the workpiece and the punching plate 41 is realized.

[0039] A pressing mechanism 5 is provided on the punching plate 41. By setting the pressing mechanism 5, during the process of moving the punching plate 41 upward, the connection position between the stripper plate 1 and the workpiece will not change, so that the stripper plate 1 firmly presses on the workpiece, realizing effective separation between the punching plate 41 and the workpiece. The pressing mechanism 5 includes a fixed shell 51, which is fixedly connected to the inner wall of the through hole 43. A counterweight 52 is slidably arranged below the fixed shell 51, and the bottom of the counterweight 52 abuts against the top of the stripper plate 1. A second telescopic rod 53 is arranged between the fixed shell 51 and the counterweight 52. A positioning groove 54 is formed at the top of the stripper plate 1, and one end of the fixed shell 51 is snap-fitted inside the positioning groove 54. When the punching plate 41 moves to the position in contact with the top of the lower mold, the bottom of the counterweight 52 contacts the top of the stripper plate 1, and both the counterweight 52 and the second telescopic rod 53 in the contracted state are placed inside the fixed shell 51. When the punching plate 41 moves away from the lower mold, it will drive the fixed shell 51 to move at the same time. At this time, the second telescopic rod 53 gradually extends, and the bottom of the counterweight 52 still abuts against the top of the stripper plate 1, so that the stripper plate 1 is stably located on the top of the workpiece under the pressing of the counterweight 52, facilitating the separation between the punching plate 41 and the workpiece. As the punching plate 41 continues to move upward, the second telescopic rod 53 is fully extended. On this basis, when the punching plate 41 continues to move upward, the counterweight 52 will move by the same amount as the punching plate 41, causing the separation between the counterweight 52 and the stripper plate 1.

[0040] The bottom of the counterweight block 52 abuts against the inner bottom of the positioning groove 54, and a clamping component 6 is arranged on the inner bottom of the positioning groove 54. By arranging the clamping component 6, the connection stability between the stripping plate 1 and the counterweight block 52 can be further increased. The clamping component 6 includes a clamping block 61, and the clamping block 61 is fixedly connected to the inner bottom of the positioning groove 54. A clamping groove 66 is formed in the bottom of the counterweight block 52. The clamping block 61 and the arc-shaped block 63 are both clamped inside the clamping groove 66. A connecting groove 62 is formed in the outer wall of the clamping block 61. A connecting telescopic rod 64 and a connecting spring 65 are both arranged inside the connecting groove 62. The arc-shaped block 63 is connected to the connecting telescopic rod 64. The connecting spring 65 is sleeved on the outer wall of the connecting telescopic rod 64. One end of the connecting spring 65 abuts against one side of the arc-shaped block 63, and the other end of the connecting spring 65 abuts against the inner wall of the connecting groove 62.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic material-removing structure for a punching die, comprising a material-removing plate (1), a first telescopic rod (2) and a first spring (3). A die holder (4) is arranged on the outer wall of the material-removing plate (1). A punching plate (41) is slidably connected inside the die holder (4). A through hole (43) corresponding to the size of the material-removing plate (1) is formed in the punching plate (41). It is characterized in that, A pressing mechanism (5) is provided on the punching plate (41), and the pressing mechanism (5) includes: A fixed shell (51) which is fixedly connected to the inner wall of the through hole (43); A counterweight block (52) which is slidably arranged below the fixed shell (51), and the bottom of the counterweight block (52) abuts against the top of the blanking plate (1); A second telescopic rod (53) which is arranged between the fixed shell (51) and the counterweight block (52).

2. The elastic material discharging structure of a punching die according to claim 1, characterized in that: A positioning groove (54) is formed in the top of the blanking plate (1), and one end of the fixed shell (51) is clamped inside the positioning groove (54).

3. The elastic material-removing structure of a punching die according to claim 2, wherein: The bottom of the counterweight block (52) abuts against the inner bottom of the positioning groove (54), and a clamping component (6) is arranged on the inner bottom of the positioning groove (54).

4. The elastic blanking structure of a punching die according to claim 3, characterized in that: The clamping component (6) includes: A clamping block (61) which is fixedly connected to the inner bottom of the positioning groove (54), and the clamping block (61) is clamped inside the counterweight block (52); An arc-shaped block (63) and a connecting telescopic rod (64) which are connected to each other, and one end of the arc-shaped block (63) and the connecting telescopic rod (64) is slidably arranged inside the clamping block (61); A connecting spring (65) which is sleeved on the outer wall of the connecting telescopic rod (64).

5. The elastic material discharging structure of a punching die according to claim 4, characterized in that: A connecting groove (62) is formed in the outer wall of the clamping block (61), and the connecting telescopic rod (64) and the connecting spring (65) are both arranged inside the connecting groove (62).

6. The elastic blanking structure of a punching die according to claim 5, characterized in that: A clamping groove (66) is formed in the bottom of the counterweight block (52), and the clamping block (61) and the arc-shaped block (63) are both clamped inside the clamping groove (66).

7. The elastic blanking structure of a punching die according to claim 1, characterized in that: A hydraulic cylinder (42) is arranged at the top end of the mold frame (4), and one end of the hydraulic cylinder (42) is connected to the top of the punching plate (41).

8. An elastic material discharging structure of a punching die according to claim 1, characterized in that: One end of the first telescopic rod (2) is fixedly connected to the inner top of the mold frame (4), and the other end of the first telescopic rod (2) is fixedly connected to the top of the blanking plate (1).

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