Scratch-free stamping die protection pad

Abstract

The utility model relates to the technical field of stamping dies, in particular to a scratch-free stamping die protective pad, which comprises a bottom die and a die cavity arranged in the bottom die, and further comprises a gasket, and two sides of the gasket are connected with mounting blocks. The gasket is aligned and placed in the mold cavity, meanwhile, the mounting blocks on the two sides of the gasket are inserted into the mounting grooves, the control driving assembly can control the end of the insertion rod to move forwards and stretch into the mounting grooves, the insertion rod can be inserted into the insertion hole, and under the limiting effect of the insertion rod, the gasket can be inserted into the mold cavity. In addition, the end portion of the inserting rod moves backwards and completely retracts into the first containing groove by controlling the driving assembly, at the moment, when the installing block is pulled out of the installing groove, the installing block is not limited by the inserting rod any more, and therefore the gasket is fixedly installed in the die cavity. And a user can directly take out the gasket from the interior of the mold cavity, so that the gasket in the mold cavity can be conveniently and quickly disassembled, assembled and replaced.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and more specifically, to a scratch-free stamping die protective pad. Background Technology

[0002] In stamping dies, if the appearance quality of the workpiece is required to be high, a set of rubber protective pads is usually set in the die cavity of the bottom die to prevent the outer surface of the workpiece from being worn during the stamping process and causing scratches on the workpiece surface.

[0003] Existing stamping die protective pads are usually fixed to the inner wall of the die cavity with adhesive to ensure a tight bond between the protective pad and the die cavity. However, after long-term use, the protective pad will deform and wear. At this time, it requires workers to spend a lot of manpower to peel the protective pad off the die cavity and then glue a new protective pad into the die cavity. It is difficult to quickly and conveniently disassemble and replace the protective pad, resulting in poor ease of use. Utility Model Content

[0004] This invention provides a scratch-free stamping die protective pad, which solves the technical problem of the difficulty in quickly and conveniently disassembling and replacing the protective pad in the prior art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A scratch-free stamping die protective pad includes a bottom die and a die cavity disposed inside the bottom die, and also includes a gasket. Mounting blocks are connected to both sides of the gasket. The bottom die is provided with two sets of mounting grooves for the mounting blocks to be inserted. The bottom die is provided with a first receiving groove on both sides that communicates with the mounting grooves. A rod is disposed inside the first receiving groove. A drive component for controlling the rod to move back and forth along the inside of the first receiving groove is also provided in the first receiving groove. The mounting block has a hole for inserting one end of the rod.

[0007] Furthermore, the drive assembly includes a threaded sleeve fixedly disposed inside the first receiving groove, and a screw rod disposed in the first receiving groove and threadedly connected to the threaded sleeve, one end of the screw rod being connected to the insert rod.

[0008] Furthermore, one end of the screw extends out of the outer side of the bottom mold and is fixedly connected to a cross hole.

[0009] Furthermore, the gasket consists of two layers: an inner rubber protective layer and an outer metal fixing layer, which are fixedly connected together by an adhesive.

[0010] Furthermore, notches are provided on both sides of the mold cavity on the bottom mold.

[0011] Furthermore, a second receiving groove is provided inside the bottom mold at the bottom end of the mold cavity, and a spring is provided inside the second receiving groove. A push rod is slidably provided inside the mold cavity. The bottom end of the push rod extends into the second receiving groove and is fixedly connected to a baffle. The two ends of the spring abut against the inner wall of the second receiving groove and the baffle, respectively. A through hole is provided on the gasket for the push rod to pass through.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By aligning and placing the gasket inside the mold cavity, and simultaneously inserting the mounting blocks on both sides of the gasket into the mounting slots, the control drive assembly can control the end of the insert rod to move forward and extend into the mounting slot, allowing the insert rod to be inserted into the insertion hole. Under the restriction of the insert rod, the mounting block cannot be pulled out from the inside of the mounting slot, thus fixing the gasket in the mold cavity. In addition, by controlling the drive assembly to move the end of the insert rod backward and fully retract it into the first receiving slot, the mounting block is no longer restricted by the insert rod when it is pulled out from the inside of the mounting slot. The user can directly remove the gasket from the inside of the mold cavity, thus making it convenient and quick to disassemble and replace the gasket inside the mold cavity, improving the ease of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram showing the disassembled structure of the gasket and mold cavity of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the gasket installed in the mold cavity in this utility model;

[0016] Figure 3 This is a schematic diagram of the composition and structure of the gasket in this utility model;

[0017] Figure 4 This is a cross-sectional view of the first receiving groove in this utility model;

[0018] Figure 5 This is a cross-sectional view of the second receiving groove in this utility model;

[0019] In the diagram: 1. Bottom mold; 2. Mold cavity; 3. Gasket; 4. Rubber protective layer; 5. Metal fixing layer; 6. Mounting block; 7. Mounting groove; 8. First receiving groove; 9. Insert rod; 10. Insert hole; 11. Screw sleeve; 12. Screw; 13. Cross hole; 14. Notch; 15. Second receiving groove; 16. Spring; 17. Push rod; 18. Through hole; 19. Baffle. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Example 1

[0023] Please see Figure 1-5A scratch-free stamping die protective pad includes a bottom die 1 and a die cavity 2 disposed inside the bottom die 1, and a gasket 3 that fits into the interior of the die cavity 2 and can be placed inside the die cavity 2. The gasket 3 consists of two layers: an inner rubber protective layer 4 and an outer metal fixing layer 5, which are fixedly connected together by an adhesive. Mounting blocks 6 are connected to both sides of the gasket 3. The bottom die 1 is provided with two sets of mounting grooves 7. When the gasket 3 is placed inside the die cavity 2, the mounting blocks 6 on both sides of the gasket 3 can be inserted into the mounting grooves 7. The bottom die 1 is provided with first receiving grooves 8 on both sides, which are connected to the interior of the mounting grooves 7. Insert rods 9 are disposed inside the first receiving grooves 8. A driving assembly is also provided in the first receiving grooves 8. The driving assembly includes a threaded sleeve 11 fixedly disposed inside the first receiving groove 8 and a screw rod 12 disposed in the first receiving groove 8 and threadedly connected to the threaded sleeve 11. One end of the screw rod 12 Connected to the insertion rod 9, when the control screw 12 rotates, it can move back and forth along the inside of the first receiving groove 8 under the driving action of the screw sleeve 11. At this time, the screw 12 can drive the insertion rod 9 to move back and forth. When the insertion rod 9 moves forward, one end can move out of the first receiving groove 8 and into the mounting groove 7. When the insertion rod 9 moves backward, it can be completely retracted into the inside of the first receiving groove 8. In addition, one end of the screw 12 extends out of the outside of the bottom mold 1 and is fixedly connected to the cross hole 13. The user can conveniently control the screw 12 to rotate by aligning the screw with the cross hole 13. The mounting block 6 has an insertion hole 10, the size of which matches the end of the insertion rod 9. When the mounting block 6 is inserted into the inside of the mounting groove 7, the insertion hole 10 on the mounting block 6 will be aligned with one end of the insertion rod 9. When one end of the insertion rod 9 moves out of the first receiving groove 8 and into the mounting groove 7, the insertion rod 9 can be inserted into the inside of the insertion hole 10.

[0024] In use, the gasket 3 is aligned and placed inside the mold cavity 2, while the mounting blocks 6 on both sides of the gasket 3 are inserted into the mounting grooves 7. At this time, the insertion holes 10 on the mounting blocks 6 are aligned with the ends of the insert rods 9 in the first receiving groove 8. By controlling the drive assembly, the ends of the insert rods 9 can be moved forward and extended into the mounting grooves 7, allowing the insert rods 9 to be inserted into the insertion holes 10. Under the restraint of the insert rods 9, the mounting blocks 6 cannot be pulled out from inside the mounting grooves 7, thus allowing the gasket 3 to be fixedly installed in the mold cavity 2. During the stamping process, the surface of the workpiece will contact the soft inner side of the gasket 3. The rubber protective layer 4 is in contact with the workpiece, thereby preventing wear between the workpiece and the inner wall of the mold cavity 2, preventing scratches on the workpiece surface, ensuring the appearance quality of the workpiece after molding, and reducing the frictional resistance on the workpiece surface, which facilitates demolding of the workpiece. In addition, when the metal fixing layer 5 inside the gasket 3 is deformed or damaged, the end of the insert rod 9 can be moved backward and completely retracted into the first receiving groove 8 by controlling the drive assembly. At this time, the mounting block 6 is no longer restricted by the insert rod 9 when it is pulled out from the inside of the mounting groove 7. The user can directly remove the gasket 3 from the inside of the mold cavity 2 to replace the gasket 3.

[0025] For further details, please refer to Figure 1-5 The bottom mold 1 has notches 14 on both sides of the mold cavity 2. When removing the pad 3 from the inside of the mold cavity 2, the user can insert his / her fingers into the notches 14 to touch the sides of the pad 3, which makes it easier to remove the pad 3 from the inside of the mold cavity 2.

[0026] Example 2

[0027] Please see Figure 5 In another embodiment of this utility model, a second receiving groove 15 is provided inside the bottom mold 1 at the bottom end of the mold cavity 2. A spring 16 is provided inside the second receiving groove 15. A push rod 17 is slidably provided inside the mold cavity 2. The bottom end of the push rod 17 extends into the second receiving groove 15 and is fixedly connected to a baffle 19. The two ends of the spring 16 respectively abut against the inner wall of the second receiving groove 15 and the baffle 19. A through hole 18 is provided on the gasket 3 for the push rod 17 to pass through. When the gasket 3 is installed in the mold cavity 2, the top end of the push rod 17... It can extend through the through hole 18 into the gasket 3. When the workpiece is formed inside the mold cavity 2 under the pressure of the top mold, the bottom of the workpiece will press the ejector rod 17 downward so that it is fully inserted into the second receiving groove 15. At this time, the spring 16 will be compressed and generate an upward elastic force on the baffle 19 at the bottom of the ejector rod 17. When the top mold rises, it no longer exerts downward pressure on the workpiece. At this time, the ejector rod 17 will extend upward into the mold cavity 2 under the action of the elastic force and eject the workpiece out of the mold cavity 2, thereby realizing automatic demolding of the formed workpiece.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A scratch-free stamping die protective pad, comprising a bottom die (1) and a die cavity (2) disposed inside the bottom die (1), characterized in that, It also includes a gasket (3), on both sides of which are connected mounting blocks (6). The bottom mold (1) is provided with two sets of mounting grooves (7) for the mounting blocks (6) to be inserted. The bottom mold (1) is provided with first receiving grooves (8) on both sides that are connected to the mounting grooves (7). A rod (9) is provided inside the first receiving groove (8). A drive component for controlling the rod (9) to move back and forth along the inside of the first receiving groove (8) is also provided in the first receiving groove (8). The mounting block (6) has a socket (10) for inserting one end of the rod (9).

2. The scratch-free stamping die protective pad according to claim 1, characterized in that, The drive assembly includes a screw sleeve (11) fixedly disposed inside the first receiving groove (8) and a screw rod (12) disposed in the first receiving groove (8) and threadedly connected to the screw sleeve (11), one end of the screw rod (12) being connected to the insert rod (9).

3. The scratch-free stamping die protective pad according to claim 2, characterized in that, One end of the screw (12) extends out of the outside of the bottom mold (1) and is fixedly connected to a cross hole (13).

4. The scratch-free stamping die protective pad according to claim 1, characterized in that, The gasket (3) consists of two layers: an inner rubber protective layer (4) and an outer metal fixing layer (5). The rubber protective layer (4) and the metal fixing layer (5) are fixedly connected together by an adhesive.

5. The scratch-free stamping die protective pad according to claim 1, characterized in that, The bottom mold (1) has notches (14) located on both sides of the mold cavity (2).

6. The scratch-free stamping die protective pad according to any one of claims 1-5, characterized in that, The bottom mold (1) has a second receiving groove (15) located at the bottom end of the mold cavity (2). A spring (16) is provided inside the second receiving groove (15). A push rod (17) is slidably provided inside the mold cavity (2). The bottom end of the push rod (17) extends into the second receiving groove (15) and is fixedly connected to a baffle (19). The two ends of the spring (16) abut against the inner wall of the second receiving groove (15) and the baffle (19) respectively. A through hole (18) is provided on the gasket (3) for the push rod (17) to pass through.

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