Connector stamping die with material pulling structure

Abstract

The utility model discloses a connector stamping die with a material pulling structure, which comprises a base, a fixed lower die used for stamping connector accessories is arranged at the central position of the end part of the base, and a movable forming die core for upwards pulling and ejecting the connector accessories after the connector accessories are stamped and formed is movably arranged in an inner cavity of the end part of the fixed lower die; according to the utility model, after a material belt is punched, the material pulling compression roller moves downwards to be attached to the two sides of the end part of the material belt by utilizing the air cylinder piece, and the material pulling servo motor is utilized to drive the rotary material pulling roller to rotate, so that the effect of pulling out a formed connector accessory can be realized; therefore, the phenomenon that after being pulled out, the material belt is pressed by the material pulling pressing roller and the rotary material pulling roller and is deformed is avoided, the stability of continuous stamping of the material belt during material pulling movement is guaranteed, meanwhile, materials are ejected and pulled instantly by utilizing the die opening time of a stamping die, and the function of continuous material pulling and stamping can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, specifically relating to a connector stamping die with a material drawing structure. Background Technology

[0002] In stamping dies, based on the forming process, they can be classified into engineering dies and progressive dies. Engineering dies, also known as single-operation dies, are dies that complete only one stamping operation in a single stamping stroke. These dies are simple to maintain, but production is time-consuming and labor-intensive, requiring significant manpower and time costs, and resulting in a higher product scrap rate. Progressive dies, also known as "continuous dies," are dies that complete two or more stamping operations simultaneously at different stations during a single stamping stroke. These dies are more challenging to design, process, assemble, and maintain, requiring extensive experience, but they are highly efficient in production, saving labor and time costs, and resulting in a lower product scrap rate. The production method of progressive dies dictates that the formed material is in strip shape. Strip material forming typically involves manual or sheet-fed material transport, which is costly and lacks flexibility.

[0003] Therefore, a stamping die with a material pulling mechanism, as disclosed in announcement number "CN203330288U", mainly includes a motor, a rotating shaft, a support plate, first and second support plates, and a base. One end of the rotating shaft is connected to the motor shaft via a coupling. A roller is fitted onto the rotating shaft with an interference fit to prevent roller movement. The two ends of the roller are limited by first and second deep groove ball bearings, which are respectively embedded in the first and second support plates with an interference fit to prevent the first and second deep groove ball bearings from moving. The other end of the rotating shaft is fixedly connected to the second support plate via a fastening nut to prevent shaft movement. This method replaces manual or material pulling machine material transport, saving costs, not damaging the product, and effectively ensuring product quality. Moreover, it has a simple and flexible structure, and the roller surface shape can be changed according to different products, thereby realizing material pulling for multiple progressive die stamping dies.

[0004] However, for the above-mentioned stamping die with a material pulling mechanism, although the motor drives the rotating shaft and roller to rotate, the product is placed between the pallet and the roller, and the surface shape of the roller just matches the surface shape of the formed product, and the formed product is also transported forward as the roller rotates, thereby realizing the automatic material pulling action of this utility model, there are still the following obvious defects in the use process: Although the material pulling structure in the above-mentioned die can pull the formed product, since the rolling surface in the material pulling structure is not set to avoid the structure of the formed part, the formed product is prone to be deformed by the roller rotation during material pulling. Utility Model Content

[0005] The purpose of this invention is to provide a connector stamping die with a material drawing structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connector stamping die with a material drawing structure, comprising:

[0007] The base has a fixed lower die for stamping connector parts at the center of its end, and a movable forming die core is provided in the inner cavity of the fixed lower die to pull the connector parts upward after stamping. A rotating pulling roller is provided on one side of the fixed lower die for repeatedly pressing and pulling the material strip after stamping and stripping.

[0008] The mold support has a movable template on the upper inner side via a cylinder. The movable template has a movable upper mold for stamping connector strip at the bottom center. The stamping cavity in the movable upper mold is equipped with a stripping plate for pressing and pulling the connector part downwards to detach it.

[0009] Preferably, the front and rear ends of the fixed lower mold are provided with fixed upright plates, and the rotating pulling roller is rotatably arranged inside the fixed upright plate, which can press and pull the two sides of the connector strip.

[0010] Preferably, a material pulling servo motor is provided on the outer side of the fixed upright plate, and the rotating shaft of the material pulling servo motor is rotatably connected to the rotating shaft of the rotating material pulling roller, so that the rotation of the rotating material pulling roller cooperates with the pressing of the material pulling pressure roller to pull the material.

[0011] Preferably, the fixed upright plate has an installation strip at its vertical upper end and located inside the mold support, and the upper end of the installation strip has a cylinder at its front and rear ends to push the pulling roller down to press the edge of the material strip and pull the material.

[0012] Preferably, the lower end of the mounting strip is provided with a material pulling roller on both the front and rear sides, and the top of the support of the material pulling roller is fixedly connected to the piston rod of the cylinder component, so as to realize repeated pressing and pulling output of the connector after continuous stamping.

[0013] Preferably, the fixed lower mold end is provided with a mold cavity, and cylindrical uprights are provided in the vertical grooves on both sides of the mold cavity. A reset elastic element is sleeved on the upper end of the cylindrical upright. The movable forming mold core is movably disposed in the mold cavity, and a guide limiting plate is provided at the bottom of the movable forming mold core. The guide limiting plate extends into the vertical groove and is movably connected to the cylindrical upright, so as to realize the automatic ejection of the formed part.

[0014] Preferably, the cylinder is fixed to the top plate of the mold support, and the upper surface of the stripper plate is provided with a telescopic push rod that extends to the outside of the upper end of the movable template. The upper end of the telescopic push rod is provided with a connecting bar, which can perform the stripping and pulling action of the movable upper mold when the mold is opened.

[0015] Preferably, both sides of the movable upper mold are vertically and movably connected to guide rods, and one end of the guide rod located on the bottom side of the movable template is connected to a material strip pressure plate. The material strip pressure plate has a through groove in the middle. One end of the guide rod located on the upper surface of the movable template is sleeved with a telescopic elastic element, and the guide rod is fixedly connected to the bottom sides of both ends of the connecting rod, which facilitates the ejection of the molded part from the fixed lower mold for easy output.

[0016] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This connector stamping die with a material pulling structure, through the fixed vertical plate symmetrically arranged on one side of the fixed lower die, and the material pulling servo motor and rotating material pulling roller connected internally and externally on the inner side of the fixed vertical plate, and the cooperation of the rotating material pulling roller, the material pulling pressure roller and the cylinder, so that after the material strip is stamped, the cylinder moves the material pulling pressure roller down to fit against the two sides of the end of the material strip, and the material pulling servo motor drives the rotating material pulling roller to rotate, thus realizing the function of pulling out the formed connector parts. In this way, the material strip will not be deformed by the pressure of the material pulling pressure roller and the rotating material pulling roller after being pulled out, ensuring the stability of the material strip pulling movement for continuous stamping. At the same time, by using the instantaneous ejection and pulling of the material during the opening time of the stamping die, the function of continuous material pulling stamping can be formed.

[0017] By combining the movable upper die, stripper plate, telescopic ejector rod, connecting rod, strip pressure plate, guide rod, and telescopic elastic component, the connector strip can be continuously stamped. After the movable upper die is opened and detached, the stripper plate moves back in the forming cavity using the tension and rebound force of the telescopic spring component. The return of the stripper plate can eject the undetached forming part from the forming cavity, so that the material can be pulled forward by rotating the stripper roller for continuous operation. This avoids the problem of forming parts getting stuck in the movable upper die and unable to detach, which would affect the stripping movement output and cause damage during stamping. This further improves the accuracy and safety of continuous stamping. Attached Figure Description

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a top view of the fixed lower mold structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the main structure of the fixed lower mold of this utility model.

[0021] In the diagram: 1. Base; 2. Fixed lower mold; 3. Movable forming mold core; 4. Rotating pull roller; 5. Mold support; 6. Cylinder; 7. Movable template; 8. Movable upper mold; 9. Stripping pull plate; 10. Fixed upright plate; 11. Pulling servo motor; 12. Mounting strip; 13. Cylinder component; 14. Pulling pressure roller; 15. Cylindrical upright; 16. Reset elastic component; 17. Guide limit plate; 18. Telescopic top rod; 19. Connecting rod; 20. Guide moving rod; 21. Material strip pressure plate; 22. Telescopic elastic component. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3 This utility model provides a technical solution: a connector stamping die with a material drawing structure, comprising:

[0024] The base 1 has a fixed lower die 2 at the center of its end for stamping connector parts. The bottom of the fixed lower die 2 has a mold pad fixed to the upper end of the base 1. The inner cavity of the fixed lower die 2 has a movable forming mold core 3 that allows the connector parts to be stamped and pulled upwards after being ejected. The center of the fixed lower die 2 has a movable mold cavity, and the movable forming mold core 3 is limited to move up and down in the movable mold cavity. The fixed lower die 2 has a rotating pull roller 4 on one side for repeatedly pressing and pulling the material strip after it has been stamped and ejected. The surface of the rotating pull roller 4 has a rubber anti-slip surface, which is conducive to pulling and outputting the connector strip.

[0025] The mold support 5 has a movable template 7 on its upper inner side via a cylinder 6. The mold support 5 is installed at the four corners of the end of the base 1. The upper inner side of the mold support 5 has a top plate for fixing the cylinder through it. The movable upper mold 8 for stamping connector strip is located at the center of the bottom of the movable template 7. The movable upper mold 8 is fixed to the bottom of the movable template 7. The stamping cavity in the movable upper mold 8 is movably extended and retracted and equipped with a stripper plate 9 for pulling the connector molded part downward to detach it. The lower end face of the movable upper mold 8 has a connector molded part cavity. The stripper plate 9 is movably set in the connector molded part cavity to pull the material downward to detach it from the mold.

[0026] Fixed vertical plates 10 are provided at the front and rear ends of one side of the fixed lower mold 2. The fixed vertical plates 10 are vertically fixed to one side of the mold base end. The rotating pull roller 4 is rotatably set inside the fixed vertical plate 10. The rotating pull roller 4 is rotated by the pull servo motor 11. The pull servo motor 11 is provided on the outside of the fixed vertical plate 10. The pull servo motor 11 pulls the connector strip pressed on the rotating pull roller 4 forward. The rotating shaft of the pull servo motor 11 is rotatably connected to the rotating shaft of the rotating pull roller 4. The fixed vertical plate 10 is provided with a mounting strip 12 at its vertical upper end and inside the mold support 5. The cylinder component 13 is fixed through and fixed to the end of the mounting strip 12. The cylinder component 13 is provided at the front and rear ends of the upper end of the mounting strip 12. Each side is equipped with a material pulling roller 14. The cylinder component 13 pushes the material pulling roller 14 downward to press against the end face of the connector strip, ensuring the stability of the material pulling forward. The top of the support of the material pulling roller 14 is fixedly connected to the piston rod of the cylinder component 13. The end of the fixed lower mold 2 is provided with a mold cavity. The vertical grooves on both sides of the mold cavity are provided with cylindrical uprights 15. The upper end of the cylindrical uprights 15 is sleeved with a reset elastic element 16, which allows the movable forming mold core 3 to be pressed down and then the reset elastic element 16 to return and push the formed part out of the fixed lower mold 2, so as to facilitate the material pulling forward. The movable forming mold core 3 is movably set in the mold cavity. The bottom of the movable forming mold core 3 is provided with a guide limiting plate 17, which extends into the vertical groove and is movably connected to the cylindrical uprights 15.

[0027] The cylinder 6 is fixed to the top plate of the mold support 5. The upper end of the stripper plate 9 is provided with a telescopic ejector rod 18 that extends to the outside of the upper end of the movable template 7. This allows the stripper plate 9 to move during stamping and to eject the workpiece. The upper end of the telescopic ejector rod 18 is provided with a connecting rod 19. Both ends of the connecting rod 19 are fixed to the top of the guide rod 20. Both sides of the movable upper mold 8 are vertically and movably connected with the guide rod 20. The end of the guide rod 20 located on the bottom side of the movable template 7 is connected to a strip pressure plate 21, which presses the strip during stamping. The strip pressure plate 21 has a through groove in the middle. The end of the guide rod 20 located on the upper end of the movable template 7 is fitted with a telescopic elastic element 22, which allows the strip pressure plate 21 to spring back to its initial state when the mold is opened. The guide rod 20 is fixedly connected to the bottom sides of both ends of the connecting rod 19.

[0028] Specifically, in use, the connector strip is passed through the movable forming core 3 inside the fixed lower die 2, so that the two sides of the front end of the connector strip are placed on the rotating pull roller 4. Then, the cylinder 13 pushes the pull pressure roller 14 down to press on the two sides of the end of the connector strip to maintain the stability of the connector strip in the forward pulling position. Then, the cylinder 6 pushes the movable template 7 and the movable upper die 8 down to press and close with the fixed lower die 2. During the pressing and closing, the movable upper die 8 is pressed into the forming cavity at the end of the fixed lower die 2, and the connector strip is pressed down outside the movable forming core 3. At the same time, the strip pressure plate 21 retracts and presses against the surface of the connector strip through the guide rod 20 to maintain stability. Moreover, the strip pull plate 9 moves back to the top in the forming cavity of the movable upper die 8, so that the connector strip can be stamped and formed into the required shape. After stamping and forming, the cylinder 6 drives the movable upper die 8 to move upward. Simultaneously, the telescopic push rod 18 and the guide rod 20 utilize the rebound force generated by the stretching elastic element 22 to cause the strip pressure plate 21 and the strip pressure plate 21 to move downwards to eject the connector molding part downwards and push it out of the movable upper mold 8. Moreover, the guide limit plate 17 utilizes the rebound force generated by the compression of the reset elastic element 16 to move upwards. The upward movement of the guide limit plate 17 drives the movable molding core 3 to move upwards, pulling the molding part upwards and ejecting it from the fixed lower mold 2. At the same time, the material pulling servo motor 11 drives the rotating material pulling roller 4 with rubber anti-slip surface to instantly pull the material forward, causing the connector molding part to be pulled away from the mold. Through the above-mentioned stamping and forming material pulling forward action, the function of continuous stamping and continuous material pulling forward can be formed in practice, thereby ensuring the stability of the material pulling forward and preventing the problem of the molding part being deformed and damaged by the rotating material pulling roller 4 during material pulling, further improving the working efficiency of continuous stamping and continuous material pulling forward of the connector.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connector stamping die with a drawing structure, characterized in that, include: The base (1) has a fixed lower die (2) for stamping connector accessories at the center of its end. The fixed lower die (2) has a movable forming die core (3) in the inner cavity of its end, which pulls the connector accessories upward after stamping. The fixed lower die (2) has a rotating pulling roller (4) on one side for repeatedly pressing and pulling the material strip after stamping and stripping. The mold support (5) has a movable template (7) on the upper inner side via a cylinder (6). The movable template (7) has a movable upper mold (8) at the bottom center for stamping the connector strip. The stamping cavity in the movable upper mold (8) is equipped with a stripping plate (9) for stamping and pulling the connector part downwards to detach it.

2. The connector stamping die with a drawing structure according to claim 1, characterized in that: The front and rear ends of the fixed lower mold (2) are provided with fixed upright plates (10), and the rotating pull roller (4) is rotatably set inside the fixed upright plate (10).

3. A connector stamping die with a drawing structure according to claim 2, characterized in that: The outer side of the fixed upright plate (10) is provided with a material pulling servo motor (11), and the rotating shaft of the material pulling servo motor (11) is rotatably connected to the rotating shaft of the rotating material pulling roller (4).

4. A connector stamping die with a drawing structure according to claim 3, characterized in that: The fixed plate (10) has an installation strip (12) on its upper vertical end and inside the mold support (5), and the upper end of the installation strip (12) has cylinder parts (13) on its front and rear sides.

5. A connector stamping die with a drawing structure according to claim 4, characterized in that: The mounting strip (12) is provided with a material pulling roller (14) on both the front and rear sides of its lower end, and the top of the support of the material pulling roller (14) is fixedly connected to the piston rod of the cylinder component (13).

6. A connector stamping die with a drawing structure according to claim 1, characterized in that: The fixed lower mold (2) has a mold cavity at its end, and cylindrical uprights (15) are provided in the vertical grooves on both sides of the mold cavity. A reset elastic element (16) is sleeved on the upper end of the cylindrical uprights (15). The movable forming mold core (3) is movably arranged in the mold cavity, and a guide limiting plate (17) is provided at the bottom of the movable forming mold core (3). The guide limiting plate (17) extends into the vertical groove and is movably connected to the cylindrical uprights (15).

7. A connector stamping die with a drawing structure according to claim 1, characterized in that: The cylinder (6) is fixed to the top plate of the mold support (5). The upper end of the stripping plate (9) is provided with a telescopic rod (18) that extends to the outside of the upper end of the movable template (7). The upper end of the telescopic rod (18) is provided with a connecting rod (19).

8. A connector stamping die with a drawing structure according to claim 1, characterized in that: Both sides of the movable upper mold (8) are vertically movable guide rods (20), and one end of the guide rod (20) located on the bottom side of the movable template (7) is connected to a material strip pressure plate (21). The material strip pressure plate (21) has a through groove in the middle. One end of the guide rod (20) located on the upper surface of the movable template (7) is sleeved with a telescopic elastic element (22), and the guide rod (20) is fixedly connected to the bottom sides of both ends of the connecting bar (19).

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