Stamping die with automatic material pulling and waste material cutting functions

Abstract

The stamping die comprises a base, a lower base plate is fixed to the outer wall of the top of the base, a lower fixing plate is fixed to the outer wall of the top of the lower base plate, and an elastic sliding block mechanism for pulling a material belt assembly is movably connected to the inner wall of the lower fixing plate; an elastic sliding block mechanism is fixed to the top of the lower fixing plate, a pushing needle is fixed to the top of the elastic sliding block mechanism, a mounting plate is fixed to a through hole formed in the top of the lower fixing plate in an embedded mode, a positioning needle is mounted at the top of the mounting plate in an embedded mode, and the material belt assembly comprises a material belt body, a guide needle hole and a workpiece. The positioning needle and the guide needle hole are used in a matched mode, and the pushing needles are used in a matched mode. Through the cooperation of the elastic sliding block mechanism, the positioning needle and the pushing needle, the material belt assembly can be automatically pulled after one stroke is completed, and a workpiece on the rear portion is moved to a punching point position again.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a stamping die with automatic material pulling and waste material cutting functions. Background Art

[0002] In the field of industrial manufacturing, stamping is a widely used and efficient metal forming process. In particular, in the electronics, automotive, and home appliance industries, there is a huge demand for stamped parts. Traditional stamping dies often have some urgent problems in the production process. In the loading process of the strip components, most traditional stamping dies rely on manual or simple mechanical structures for loading operations.

[0003] Manual loading is not only labor-intensive and inefficient, but also difficult to ensure the accuracy and consistency of loading due to human interference, which can easily lead to product quality problems. Simple mechanical loading structures often cannot achieve continuous and stable automatic pulling of materials, making it difficult to meet the needs of large-scale and high-efficiency production, resulting in limited production efficiency.

[0004] In view of the many problems existing in the above-mentioned traditional stamping dies, the development of a stamping die with automatic pulling and waste cutting functions has important practical significance. It can effectively solve the shortcomings of traditional dies in loading, improve production efficiency, product quality and production safety, and reduce production costs, thereby better meeting the high performance requirements of modern industrial production for stamping dies. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a stamping die with automatic material pulling and waste cutting functions.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A stamping die with automatic material pulling and waste cutting functions includes a base, a lower pad is fixed to the outer wall of the top of the base, and a lower fixed plate is fixed to the outer wall of the top of the lower pad, and the inner wall of the lower fixed plate is movably connected to an elastic slider mechanism for pulling the material strip assembly, and a push pin is fixed to the top of the elastic slider mechanism, a through hole opened in the top of the lower fixed plate is fixed with a mounting plate in an embedded manner, and a positioning pin is installed on the top of the mounting plate in an embedded manner, the material strip assembly includes a material strip body, a guide pin hole and a workpiece, and the guide pin hole and the workpiece are integrally formed on the surface of the material strip body.

[0008] As a further solution of the present invention: the elastic slider mechanism includes a slider seat and a spring, the slider seat is movably connected to the inner wall of the lower fixed plate, and the two ends of the spring are respectively fixed to the inner wall of one side of the lower fixed plate and the inner wall of one side of the slider seat, and the inner wall of the slider seat is fixed with a feeding slider by a pin, and the push needle is fixed to the top of the feeding slider.

[0009] As a further solution of the present invention: a bracket is fixed to the top outer wall of the base, a cylinder is fixed to the top outer wall of the bracket, an upper plate is fixed to the output end of the cylinder, and a blade used in conjunction with the slider seat is fixed to the bottom of the upper plate.

[0010] As a further solution of the present invention: the upper plate includes a top plate, an upper pad and an upper fixed plate, the top plate is fixed to the cylinder output end by a pin, the upper pad is fixed to the bottom outer wall of the top plate, and the upper fixed plate is fixed to the bottom outer wall of the upper pad, and the insert is fixed to the bottom of the upper fixed plate.

[0011] As a further solution of the present invention: a cover plate assembly is installed on the top of the lower fixed plate, and the cover plate assembly includes a column and a cover plate body. The column is fixed to the inner wall of the through hole opened on the top of the lower fixed plate by embedding, and the cover plate body is movably connected between the two columns through a rotating shaft.

[0012] As a further solution of the present invention: a guide assembly is installed between the base and the top plate, and the guide assembly includes a guide sleeve and a guide rod, the guide sleeve is fixed to the top outer wall of the base, and the guide rod is fixed to the bottom outer wall of the top plate, and the guide sleeve and the guide rod are movably connected.

[0013] As a further solution of the present invention: a cutting punch is fixed to the bottom of the upper pad.

[0014] As a further solution of the present invention: a cutting block used in conjunction with the cutting punch is installed on the side of the lower fixed plate.

[0015] As a further solution of the present invention: the positioning needle and the guide needle hole are used in conjunction with each other.

[0016] As a further solution of the present invention, the push pin and the workpiece are used in conjunction with each other.

[0017] Compared with the prior art, the present invention provides a stamping die with automatic material pulling and waste cutting functions, which has the following beneficial effects:

[0018] 1. Through the cooperation of the elastic slider mechanism, the positioning pin and the push pin, the material strip assembly can be automatically pulled after completing a stroke, so that the workpiece at the rear can be moved to the stamping point again. There is no need for frequent manual intervention in the loading process, which greatly improves the loading efficiency and realizes efficient automation of stamping production.

[0019] 2. The positioning pin and guide pin hole, the push pin and the workpiece are used in conjunction with each other, and the longitudinal sections of the top of the positioning pin and the push pin are both triangular. This design can ensure the precise positioning of the material strip assembly during the stamping and pulling process, effectively reducing the scrap rate caused by inaccurate positioning. At the same time, the elastic slider mechanism slides stably along the inner wall of the lower fixed plate, ensuring the stability of the entire device operation.

[0020] 3. A cutting punch is fixed at the bottom of the upper pad, and a cutting block used in conjunction with the cutting punch is installed on the side of the lower fixed plate. After the workpiece and the main body of the material strip are separated by stamping, the cutting punch can automatically cut off the waste part on the main body of the material strip during the downward movement, eliminating the need for additional waste processing procedures, further improving production efficiency.

[0021] 4. The cover assembly installed on the top of the lower fixed plate, with its main body covering the feed slider, can not only effectively protect the feed slider from being polluted by dust and debris, extending the service life of key components, but also enhance the overall safety of the device to a certain extent, avoiding danger caused by accidental contact of operators with moving parts.

[0022] 5. The guide assembly installed between the base and the top plate consists of a guide sleeve and a guide rod, which are slidably connected. It can accurately guide the movement path of the cutting punch and the plunger, so that the punch and the plunger maintain a stable and accurate motion trajectory during the up and down movement, thereby ensuring high-precision completion of operations such as stamping, drawing and scrap removal, and improving product quality.

[0023] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The present invention has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a stamping die with automatic material pulling and waste cutting functions proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the main structure of a stamping die with automatic material pulling and waste cutting functions proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the installation structure of a cover plate assembly of a stamping die with automatic material pulling and waste cutting functions proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the overall structure of a material pulling component of a stamping die with automatic material pulling and waste cutting functions proposed by the present invention;

[0028] Figure 5This is a schematic diagram of the exploded structure of a material pulling component of a stamping die with automatic material pulling and waste cutting functions proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the installation structure of a limiting component of a stamping die with automatic material pulling and waste cutting functions proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the installation structure of the material strip assembly of a stamping die with automatic material pulling and waste cutting functions proposed by the present invention.

[0031] In the figure: base 1, guide sleeve 2, guide rod 3, top plate 4, bracket 5, cylinder 6, positioning pin 7, upper pad 8, upper fixing plate 9, cutting punch 10, lower pad 11, lower fixing plate 12, column 13, inserting knife 14, cover plate body 15, material strip body 16, guide pin hole 17, workpiece 18, push pin 19, slider seat 20, feed slider 21, spring 22; mounting plate 23; cutting block 24. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] A stamping die with automatic drawing and scrap removal functions, such as Figures 1 to 7 As shown, it includes a base 1, the top outer wall of the base 1 is fixed with a lower pad 11 by bolts, and the top outer wall of the lower pad 11 is fixed with a lower fixing plate 12 by bolts, and the inner wall of the lower fixing plate 12 is slidably connected with an elastic slider mechanism for pulling the material strip assembly, and a push pin 19 is fixed on the top of the elastic slider mechanism, the through hole opened in the top of the lower fixing plate 12 is fixed with a mounting plate 23 by embedding, and a positioning pin 7 is installed on the top of the mounting plate 23 by embedding, the material strip assembly includes a material strip body 16, a guide pin hole 17 and a workpiece 18, the guide pin hole 17 and the workpiece 18 are all integrally formed on the surface of the material strip body 16, and the positioning pin 7 and the guide pin hole 17 are used in conjunction with each other, and the push pin 19 and the push pin 19 are used in conjunction with each other;

[0034] Multiple groups of workpieces 18 and multiple groups of guide pin holes 17 are evenly distributed on the surface of the material strip body 16. When the workpiece 18 needs to be stamped, the material strip assembly is first placed on the top of the lower fixed plate 12, and the gap between the workpiece 18 and the material strip body 16 is engaged with the push pin 19, and the positioning pin 7 is engaged with the guide pin hole 17. In this embodiment, the longitudinal section of the top of the positioning pin 7 and the longitudinal section of the push pin 19 are both triangular. After the workpiece 18 is stamped, the connection between the workpiece 18 and the material strip body 16 is broken, so that the workpiece 18 and the material strip body 16 are separated from each other, and the workpiece 18 is dropped under the action of its own gravity;

[0035] After completing a stroke, the material strip assembly needs to be pulled so that the workpiece 18 at the rear can be moved to the stamping point again for stamping. An elastic slider mechanism is provided, which can slide horizontally along the inner wall of the lower fixed plate 12. During the horizontal sliding of the elastic slider mechanism, the side of the push needle 19 pushes the side of the workpiece 18. During this process, the material strip body 16 slides along the inclined surface of the top of the positioning pin 7 through the guide pin hole 17. When the positioning pin 7 is engaged with the rear guide pin hole 17 again, the elastic slider mechanism stops moving, and the pulling of the material strip assembly is completed.

[0036] When the elastic slider mechanism completes pulling the material and needs to be reset, the elastic slider mechanism will push the inclined surface of the needle 19 along the surface of the workpiece 18 during the resetting process, and at this time the side of the positioning needle 7 will hook the material belt body 16 through the guide needle hole 17, so that the elastic slider mechanism will not pull the material belt assembly in the opposite direction during the resetting process, thereby preventing the material belt assembly from following the reset of the elastic slider mechanism. This pulling method can achieve continuous loading of the workpiece 18, thereby improving loading efficiency.

[0037] The elastic slider mechanism includes a slider seat 20 and a spring 22. The slider seat 20 is slidably connected to the inner wall of the lower fixed plate 12, and the two ends of the spring 22 are respectively fixed to the inner wall of one side of the lower fixed plate 12 and the inner wall of one side of the slider seat 20. The inner wall of the slider seat 20 is fixed with a feed slider 21 by a pin, and the push pin 19 is fixed to the top of the feed slider 21.

[0038] The push needle 19, the slider seat 20 and the feed slider 21 can be used to guide the moving path of the material strip assembly, and the rebound force of the spring 22 can be used to reset the slider seat 20 and the feed slider 21 after the push needle 19 completes pulling the material strip assembly.

[0039] The top outer wall of the base 1 is fixed with a bracket 5 by bolts, and the top outer wall of the bracket 5 is fixed with a cylinder 6 by bolts, and the output end of the cylinder 6 is fixed with an upper plate, and the bottom of the upper plate is fixed with a plunger 14 used in conjunction with the slider seat 20;

[0040] The cylinder 6 can be used to drive the upper plate and the inserting knife 14 to move downward synchronously. After the inclined surface at the bottom of the inserting knife 14 moves downward and contacts the slider seat 20, the inclined surface is used to convert the vertical movement of the inserting knife 14 into the lateral movement of the slider seat 20 along the lower fixed plate 12, so that the push pin 19 pulls the material strip assembly under the indirect drive of the inserting knife 14. When the inserting knife 14 and the slider seat 20 are separated from each other, the rebound force of the spring 22 is used to reset the slider seat 20 and the feeding slider 21.

[0041] The upper plate includes a top plate 4, an upper pad 8 and an upper fixed plate 9. The top plate 4 is fixed to the output end of the cylinder 6 by a pin, and the upper pad 8 is fixed to the outer wall of the bottom of the top plate 4 by bolts, and the upper fixed plate 9 is fixed to the outer wall of the bottom of the upper pad 8 by bolts. The insert 14 is fixed to the bottom of the upper fixed plate 9.

[0042] The upper plate plays a connecting role so that the cylinder 6 can drive the inserting knife 14 to move up or down.

[0043] The bottom of the upper plate 8 is fixed with a cutting punch 10 by bolts, and the side of the lower fixing plate 12 is installed with a cutting block 24 used in conjunction with the cutting punch 10;

[0044] After the workpiece 18 and the material strip body 16 are separated by punching, the cutting punch 10 cuts off the waste material portion on the material strip body 16 during the downward movement.

[0045] A cover assembly is installed on the top of the lower fixed plate 12. The cover assembly includes a column 13 and a cover body 15. The column 13 is fixed to the inner wall of the through hole opened on the top of the lower fixed plate 12 by embedding, and the cover body 15 is rotatably connected between the two columns 13 through a rotating shaft.

[0046] The cover plate body 15 covers the feeding slider 21 . The cover plate body 15 not only protects the feeding slider 21 from being polluted by dust and debris, but also enhances the overall safety of the device to a certain extent.

[0047] A guide assembly is installed between the base 1 and the top plate 4, and the guide assembly includes a guide sleeve 2 and a guide rod 3. The guide sleeve 2 is fixed to the top outer wall of the base 1 by bolts, and the guide rod 3 is fixed to the bottom outer wall of the top plate 4 by bolts, and the guide sleeve 2 and the guide rod 3 are slidably connected;

[0048] The guide sleeve 2 and the guide rod 3 can be used to guide the movement paths of the cutting punch 10 and the plunger 14 .

[0049] Working principle: Place the material strip assembly on the top of the lower fixed plate 12, engage the gap between the workpiece 18 and the material strip body 16 with the push pin 19, engage the positioning pin 7 with the guide pin hole 17, the longitudinal section of the top of the positioning pin 7 and the longitudinal section of the push pin 19 are both triangular to achieve precise positioning, install the stamping punch (not shown) on the bottom of the upper plate, start the cylinder 6, and the output end of the cylinder 6 drives the upper plate and the inserter 14 to move downward synchronously, and the bottom inclined surface of the inserter 14 moves downward and contacts the slider seat 20, and the inclined surface of the inserter 14 is used to convert the vertical movement of the inserter 14 into the lateral movement of the slider seat 20 along the lower fixed plate 12. During the lateral sliding of the elastic slider mechanism, the push pin 19 pushes the side of the workpiece 18. During this process, the material strip body 16 slides along the inclined surface of the top of the positioning pin 7 through the guide pin hole 17, and the elastic slider mechanism stops moving when the positioning pin 7 is engaged with the rear guide pin hole 17 again, and the alignment is completed. When the workpiece 18 and the material strip body 16 are separated by the punching force, the workpiece 18 and the material strip body 16 are separated from each other, and the workpiece 18 is dropped under the action of its own gravity. When the elastic slider mechanism completes the material pulling and needs to be reset, the elastic slider mechanism begins to reset under the action of the rebound force of the spring 22. During the reset process, the inclined surface of the pushing needle 19 will slide along the surface of the workpiece 18, and the side of the positioning needle 7 will hook the material strip body 16 through the guide pin hole 17, so that the elastic slider mechanism will not pull the material strip assembly in the opposite direction during the reset process, and the material strip assembly is prevented from following the reset of the elastic slider mechanism. This material pulling method can be used to achieve continuous feeding of the workpiece 18. During the process of stamping and separating between the workpiece 18 and the material strip body 16, the cutting punch 10 cuts off the waste part on the material strip body 16 during the downward movement.

[0050] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A stamping die with automatic material pulling and waste cutting functions, comprising a base (1), characterized in that: The top outer wall of the base (1) is fixed with a lower pad (11), and the top outer wall of the lower pad (11) is fixed with a lower fixed plate (12), and the inner wall of the lower fixed plate (12) is movably connected with an elastic slider mechanism for pulling the material strip assembly, and a push needle (19) is fixed on the top of the elastic slider mechanism, and a through hole opened on the top of the lower fixed plate (12) is fixed with a mounting plate (23) by embedding, and a positioning needle (7) is installed on the top of the mounting plate (23) by embedding, and the material strip assembly includes a material strip body (16), a guide needle hole (17) and a workpiece (18), and the guide needle hole (17) and the workpiece (18) are both integrally formed on the surface of the material strip body (16).

2. A stamping die with automatic material pulling and waste cutting functions according to claim 1, characterized in that: The elastic slider mechanism includes a slider seat (20) and a spring (22), the slider seat (20) is movably connected to the inner wall of the lower fixed plate (12), and the two ends of the spring (22) are respectively fixed to the inner wall of one side of the lower fixed plate (12) and the inner wall of one side of the slider seat (20), and the inner wall of the slider seat (20) is fixed with a feeding slider (21) through a pin, and the push pin (19) is fixed to the top of the feeding slider (21).

3. The stamping die with automatic material pulling and waste cutting functions according to claim 1, characterized in that: A bracket (5) is fixed to the top outer wall of the base (1), a cylinder (6) is fixed to the top outer wall of the bracket (5), an upper plate is fixed to the output end of the cylinder (6), and a blade (14) used in conjunction with the slider seat (20) is fixed to the bottom of the upper plate.

4. A stamping die with automatic material pulling and waste cutting functions according to claim 3, characterized in that: The upper plate comprises a top plate (4), an upper pad (8) and an upper fixed plate (9); the top plate (4) is fixed to the output end of the cylinder (6) by a pin, the upper pad (8) is fixed to the bottom outer wall of the top plate (4), and the upper fixed plate (9) is fixed to the bottom outer wall of the upper pad (8); the insert (14) is fixed to the bottom of the upper fixed plate (9).

5. The stamping die with automatic material pulling and waste cutting functions according to claim 1, characterized in that: A cover assembly is installed on the top of the lower fixed plate (12), and the cover assembly includes a column (13) and a cover body (15). The column (13) is fixed to the inner wall of the through hole opened on the top of the lower fixed plate (12) by embedding, and the cover body (15) is movably connected between the two columns (13) through a rotating shaft.

6. The stamping die with automatic material pulling and waste cutting functions according to claim 1, characterized in that: A guide assembly is installed between the base (1) and the top plate (4), and the guide assembly includes a guide sleeve (2) and a guide rod (3). The guide sleeve (2) is fixed to the top outer wall of the base (1), and the guide rod (3) is fixed to the bottom outer wall of the top plate (4), and the guide sleeve (2) and the guide rod (3) are movably connected.

7. The stamping die with automatic material pulling and waste cutting functions according to claim 4, characterized in that: A cutting punch (10) is fixed to the bottom of the upper pad (8).

8. The stamping die with automatic material pulling and waste cutting functions according to claim 7, characterized in that: A cutting block (24) used in conjunction with the cutting punch (10) is installed on the side of the lower fixing plate (12).

9. The stamping die with automatic material pulling and waste cutting functions according to claim 1, characterized in that: The positioning needle (7) and the guide needle hole (17) are used in conjunction with each other.

10. The stamping die with automatic material pulling and waste cutting functions according to claim 1, characterized in that: The pushing needle (19) and the workpiece (18) are used in conjunction with each other.

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