Stamping die for automatic demolding of sewing machine parts

Abstract

The utility model discloses a stamping die for automatic demolding of sewing machine parts, and relates to the technical field of stamping dies. The die comprises a lower die body, an upper die body is arranged above the lower die body, a cavity is formed in the lower die body, a stripping assembly is arranged in the cavity and comprises a push plate, a trapezoidal block is fixedly connected to the bottom of the push plate, a lifting plate is slidably connected to the inner wall of the cavity, and the trapezoidal block is fixedly connected to the inner wall of the lifting plate. And the bottom of the lifting plate is fixedly connected with an inverted trapezoidal block. Through the arrangement of the stripping assembly, specifically, after stamping is completed, the upper die is reset upwards, the push seat is reset under the action of elasticity of the spring, meanwhile, the trapezoidal block is pushed upwards, the push plate moves along with the trapezoidal block, and a stamped part is ejected out of the lower die through the push plate, so that the part can be quickly demoulded; and therefore, workers can conveniently take out the parts, the working efficiency is improved, violent disassembly is avoided, and the parts and the lower die are protected against damage.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies, in particular to a stamping die for automatic demoulding of sewing machine parts. Background Art

[0002] Sewing machines are becoming more and more popular in daily life, and the demand for sewing machine parts is also increasing. Stamping dies are required in the production process of sewing machine parts.

[0003] After the existing stamping die is used, the stamped parts are usually attached to the lower die, making it difficult for the staff to remove them. The staff is prone to use violent methods to remove them, which not only causes certain damage to the parts, but also has certain damage to the die, resulting in economic losses and a great impact on subsequent production. Therefore, we propose a stamping die for sewing machine parts with automatic demoulding. Utility Model Content

[0004] The purpose of the utility model is to provide a stamping die for automatic demoulding of sewing machine parts. By setting a stripping component, specifically, after stamping is completed, the upper mold is reset upward, and the push seat is reset under the action of the spring elasticity, and the trapezoidal block is pushed upward at the same time, and the push plate moves together, and the push plate pushes the stamped parts out of the lower mold, so that the parts can be quickly demoulded, which is convenient for staff to take out, improves work efficiency, avoids the use of violent disassembly, and protects the parts and the lower mold from damage. The problem that the stamped parts are usually attached to the lower mold, making it difficult for staff to take them out, and the staff are prone to use violent removal methods, which will not only cause certain damage to the parts, but also cause certain damage to the mold, thereby causing economic losses.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a stamping die for automatic demoulding of sewing machine parts, comprising a lower die, an upper die is arranged above the lower die, a cavity is opened inside the lower die, a stripping assembly is arranged inside the cavity, the stripping assembly comprises a push plate, a trapezoidal block is fixedly connected to the bottom of the push plate, and a lifting plate is slidably connected to the inner wall of the cavity;

[0007] The bottom of the lifting plate is fixedly connected with an inverted trapezoidal block, and a two-way threaded rod is arranged under the inverted trapezoidal block. The top of the lifting plate contacts with a push seat, and the top of the lifting plate is fixedly connected with a fixed plate. By setting a stripping component, specifically after the stamping is completed, the upper mold is reset upward, and the push seat is reset by the elasticity of the spring, and the trapezoidal block is pushed upward at the same time, and the push plate moves together, and the push plate pushes the stamped parts out of the lower mold, so that the parts can be demolded quickly, which is convenient for the staff to take out, improves work efficiency, avoids the use of violent disassembly, and protects the parts and the lower mold from damage.

[0008] Furthermore, the four corners of the bottom of the push plate are fixedly connected to the limit rod, the four corners of the inner wall of the cavity are fixedly connected to the limit block, the bottom of the limit rod passes through the limit block and extends to the outside, the limit rod is slidably connected to the limit block, and the push plate slides on the limit block through the limit rod, which is used to play a stabilizing role and make the push plate move in a straight line.

[0009] Furthermore, a slide groove is opened at the center of the bottom of the push seat, the inner wall of the slide groove is slidably connected to the limiting rail, the bottom of the limiting rail is fixedly connected to the top of the lifting plate, and two fixed cylinders are fixedly connected to the left side of the fixed plate. During stamping, the trapezoidal block will push the push seat to the right, and the push seat will slide on the limiting rail, while driving the telescopic rod to slide in the fixed cylinder and compressing the spring.

[0010] Furthermore, sliding holes are provided inside the two fixed cylinders, and telescopic rods are slidably connected to the inner walls of the two sliding holes. The left sides of the two telescopic rods are fixedly connected to the right side of the push seat, and the right sides of the two telescopic rods are fixedly connected to springs. The right sides of the two springs are fixedly connected to the left side of the fixed plate. By providing two telescopic rods, the push seat can be made more stable when moving and make linear motion to avoid offset.

[0011] Furthermore, the left and right sides of the bidirectional threaded rod both pass through the lower mold, the outer surface of the bidirectional threaded rod is rotatably connected to the inner wall of the lower mold, the left and right sides of the bidirectional threaded rod are fixedly connected with hexagonal blocks, and the outer surface of the bidirectional threaded rod is threadedly connected to two push blocks, and the two push blocks are symmetrically arranged. When the two push blocks approach each other, the inverted trapezoidal block will be pushed upward, and the lifting plate will move upward through the push seat, which can increase the ejection height of the push plate. When the two push blocks move away from each other, the lifting plate will descend due to its own gravity, and the push plate will also follow it to descend, thereby reducing the ejection height of the push plate.

[0012] Furthermore, limiting holes are provided inside the two push blocks, and a sliding rod is slidably connected to the inner wall of the limiting hole. The left and right sides of the sliding rod are fixedly connected to the inner wall of the cavity. The side of the push block close to the inverted trapezoidal block contacts the surface of the inverted trapezoidal block, and the side of the trapezoidal block close to the push seat contacts the top of the push seat. The push plate is slidably connected to the lower mold, and a hexagonal wrench is used to drive the hexagonal block to rotate, so that the hexagonal block drives the bidirectional threaded rod to rotate. When the bidirectional threaded rod rotates, it drives the two push blocks to move closer to or away from each other, and the ejection height of the push plate can be adjusted according to different needs, making it more flexible to use.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a stripping component. Specifically, after the stamping is completed, the upper mold is reset upward, and the push seat is reset by the elasticity of the spring. At the same time, the trapezoidal block is pushed upward, and the push plate moves together. The push plate pushes the stamped parts out of the lower mold, and the parts can be quickly demolded, which is convenient for the staff to take out, improves work efficiency, avoids the use of violent disassembly, and protects the parts and the lower mold from damage.

[0015] 2. The utility model sets a lifting plate, specifically uses a hexagonal wrench to drive the hexagonal block to rotate, and the hexagonal block drives the two-way threaded rod to rotate. When the two-way threaded rod rotates, it drives the two push blocks to move closer to or away from each other, and adjusts the ejection height of the push plate. It can be controlled according to different needs and is more flexible to use.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the lower mold of the utility model;

[0020] Figure 3 This is a schematic diagram of the top structure of the lifting plate of the utility model;

[0021] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the push plate of the utility model;

[0023] Figure 6 The figure is a schematic diagram of the bottom structure of the lifting plate of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Lower mold; 11. Upper mold; 12. Stripping assembly; 121. Push plate; 122. Trapezoidal block; 123. Limit rod; 13. Cavity; 31. Limit block; 131. Lifting plate; 132. Inverted trapezoidal block; 133. Push seat; 134. Fixed plate; 341. Fixed cylinder; 342. Telescopic rod; 343. Spring; 135. Limit rail; 14. Bidirectional threaded rod; 141. Hexagonal block; 142. Push block; 143. Sliding rod. DETAILED DESCRIPTION

[0026] 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 them. 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.

[0027] See also Figure 1-6As shown, the utility model is a stamping die for automatic demoulding of sewing machine parts, including a lower die 1, an upper die 11 is arranged above the lower die 1, a cavity 13 is opened inside the lower die 1, a stripping assembly 12 is arranged inside the cavity 13, the stripping assembly 12 includes a push plate 121, a trapezoidal block 122 is fixedly connected to the bottom of the push plate 121, a lifting plate 131 is slidably connected to the inner wall of the cavity 13, a reverse trapezoidal block 132 is fixedly connected to the bottom of the lifting plate 131, a bidirectional threaded rod 14 is arranged below the reverse trapezoidal block 132, a push seat 133 is contacted with the top of the lifting plate 131, and a fixed plate 134 is fixedly connected to the top of the lifting plate 131. By setting the stripping assembly 12, specifically, after the stamping is completed, the upper die 11 is reset upward, and the push plate 121 is pushed back to the bottom of the push plate 121. The seat 133 is reset under the elastic action of the spring 343, and the trapezoidal block 122 is pushed upward at the same time, and the push plate 121 moves together, and the push plate 121 pushes the stamped parts out of the lower mold 1, and can quickly demould the parts, so as to facilitate the staff to take them out, improve work efficiency, avoid the use of violent disassembly, and protect the parts and the lower mold 1 from damage. The four corners of the bottom of the push plate 121 are fixedly connected to the limit rod 123, and the four corners of the inner wall of the cavity 13 are fixedly connected to the limit block 31. The bottom of the limit rod 123 passes through the limit block 31 and extends to the outside. The limit rod 123 is slidably connected to the limit block 31. A slide groove is provided at the center of the bottom of the push seat 133, and the inner wall of the slide groove is slidably connected to the limit rail 135. The limit rail 1 The bottom of 35 is fixedly connected to the top of the lifting plate 131, and the left side of the fixed plate 134 is fixedly connected to two fixed cylinders 341, and sliding holes are opened inside the two fixed cylinders 341. The inner walls of the two sliding holes are slidably connected with telescopic rods 342, and the left sides of the two telescopic rods 342 are fixedly connected to the right side of the push seat 133, and the right sides of the two telescopic rods 342 are fixedly connected to the spring 343, and the right sides of the two springs 343 are fixedly connected to the left side of the fixed plate 134. The left and right sides of the two-way threaded rod 14 pass through the lower mold 1, and the outer surface of the two-way threaded rod 14 is rotatably connected to the inner wall of the lower mold 1, and the left and right sides of the two-way threaded rod 14 are fixedly connected with the inner hexagonal block 141, and the outer surface of the two-way threaded rod 14 is threadedly connected with two push blocks 142, two The push blocks 142 are symmetrically arranged, and limiting holes are provided inside the two push blocks 142. The inner walls of the limiting holes are slidably connected with slide rods 143. The left and right sides of the slide rods 143 are fixedly connected to the inner walls of the cavity 13. The side of the push block 142 close to the inverted trapezoidal block 132 contacts the surface of the inverted trapezoidal block 132, and the side of the trapezoidal block 122 close to the push seat 133 contacts the top of the push seat 133. The push plate 121 is slidably connected to the lower mold 1. The hexagonal wrench is used to drive the hexagonal block 141 to rotate, and the hexagonal block 141 drives the bidirectional threaded rod 14 to rotate. When the bidirectional threaded rod 14 rotates, it will drive the two push blocks 142 to move closer to or away from each other. The ejection height of the push plate 121 can be adjusted according to different needs, and it is more flexible to use.

[0028] A specific application of this embodiment is:

[0029] When in use, when the upper mold 11 cooperates with the lower mold 1 to stamp the part, it will drive the push plate 121 to move downward, and the push plate 121 will slide on the limit block 31 through the limit rod 123, which is used to stabilize the push plate 121 and make it move in a straight line. At the same time, the trapezoidal block 122 will push the push seat 133 to the right, and the push seat 133 will slide on the limit rail 135, and at the same time drive the telescopic rod 342 to slide in the fixed cylinder 341 and squeeze the spring 343. After the stamping is completed, the upper mold 11 is reset upward, and the push seat 133 is reset under the elastic action of the spring 343, and at the same time, the trapezoidal block 122 is pushed upward, and the push plate 121 moves together, and the push plate 121 pushes the stamped part out of the outside of the lower mold 1, which can quickly complete the demoulding of the part, thereby facilitating the workers. The staff can take it out, improve work efficiency, avoid violent disassembly, and protect parts and the lower mold 1 from damage. By using a hexagonal wrench to drive the hexagonal block 141 to rotate, the hexagonal block 141 drives the bidirectional threaded rod 14 to rotate, and the bidirectional threaded rod 14 rotates, which drives the two push blocks 142 to approach or move away from each other. When the two push blocks 142 are close to each other, the inverted trapezoidal block 132 is pushed upward, and the lifting plate 131 moves upward. The lifting plate 131 moves the push plate 121 upward through the push seat 133, which can increase the ejection height of the push plate 121. When the two push blocks 142 are away from each other, the lifting plate 131 descends by its own gravity, and the push plate 121 also descends, thereby reducing the ejection height of the push plate 121. It can be adjusted according to different needs and is more flexible to use.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A stamping die for automatic demoulding of sewing machine parts, comprising a lower die (1), an upper die (11) being arranged above the lower die (1), a cavity (13) being provided inside the lower die (1), characterized in that: A stripping assembly (12) is arranged inside the cavity (13), and the stripping assembly (12) comprises a push plate (121), a trapezoidal block (122) is fixedly connected to the bottom of the push plate (121), and a lifting plate (131) is slidably connected to the inner wall of the cavity (13); The bottom of the lifting plate (131) is fixedly connected to an inverted trapezoidal block (132), a bidirectional threaded rod (14) is arranged below the inverted trapezoidal block (132), the top of the lifting plate (131) contacts a push seat (133), and the top of the lifting plate (131) is fixedly connected to a fixed plate (134).

2. A stamping die for automatic demoulding of sewing machine parts according to claim 1, characterized in that: The four corners of the bottom of the push plate (121) are fixedly connected to the limiting rod (123), the four corners of the inner wall of the cavity (13) are fixedly connected to the limiting block (31), the bottom of the limiting rod (123) passes through the limiting block (31) and extends to the outside, and the limiting rod (123) is slidably connected to the limiting block (31).

3. A stamping die for automatic demoulding of sewing machine parts according to claim 2, characterized in that: A slide groove is provided at the center of the bottom of the push seat (133), the inner wall of the slide groove is slidably connected to a limit rail (135), the bottom of the limit rail (135) is fixedly connected to the top of the lifting plate (131), and the left side of the fixed plate (134) is fixedly connected to two fixed cylinders (341).

4. A stamping die for automatic demoulding of sewing machine parts according to claim 3, characterized in that: The two fixed cylinders (341) are each provided with a sliding hole, the inner walls of the two sliding holes are slidably connected with a telescopic rod (342), the left sides of the two telescopic rods (342) are both fixedly connected to the right side of the push seat (133), the right sides of the two telescopic rods (342) are both fixedly connected with a spring (343), and the right sides of the two springs (343) are both fixedly connected to the left side of the fixed plate (134).

5. A stamping die for automatic demoulding of sewing machine parts according to claim 4, characterized in that: The left and right sides of the bidirectional threaded rod (14) both pass through the lower mold (1); the outer surface of the bidirectional threaded rod (14) is rotatably connected to the inner wall of the lower mold (1); the left and right sides of the bidirectional threaded rod (14) are fixedly connected to hexagonal blocks (141); the outer surface of the bidirectional threaded rod (14) is threadedly connected to two push blocks (142); the two push blocks (142) are symmetrically arranged.

6. A stamping die for automatic demoulding of sewing machine parts according to claim 5, characterized in that: The two push blocks (142) are provided with limiting holes inside, and the inner walls of the limiting holes are slidably connected to sliding rods (143). The left and right sides of the sliding rods (143) are fixedly connected to the inner walls of the cavity (13), and the side of the push block (142) close to the inverted trapezoidal block (132) is in contact with the surface of the inverted trapezoidal block (132).

7. A stamping die for automatic demoulding of sewing machine parts according to claim 4, characterized in that: The side of the trapezoidal block (122) close to the push seat (133) contacts the top of the push seat (133), and the push plate (121) is slidably connected to the lower mold (1).

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