Thermoplastic elastomer punching device

Abstract

The utility model relates to the technical field of punching devices, and discloses a thermoplastic elastomer punching device which comprises an outer frame, a driving assembly used for providing power is arranged on the rear side of the outer frame, a connecting rod is fixedly connected to the rear side of the driving assembly, and first fixing frames are fixedly connected to the left side and the right side of the connecting rod. First rotating shafts are rotatably connected to the interiors of the two first fixing frames correspondingly, rotating rods are rotatably connected to the exteriors of the two first rotating shafts correspondingly, second fixing frames are rotatably connected to the interiors of the two rotating rods correspondingly, second rotating shafts are rotatably connected to the exteriors of the two second fixing frames correspondingly, and two sliding grooves are formed in the rear side of the interior of the outer frame; and sliding rods are fixedly connected to the front sides of the two rotating shafts II. According to the utility model, the thermoplastic elastomer is always kept at a fixed position in the punching process, so that the punching accuracy is greatly ensured, the punching error caused by material displacement is effectively reduced, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of punching and cutting device technology, and in particular to a punching and cutting device for thermoplastic elastomers. Background Technology

[0002] Thermoplastic elastomers (TPEs) are materials that combine the properties of rubber and thermoplastics. The molecular chains of TPEs consist of soft and hard segments. The soft segments provide elasticity, similar to the elastomeric chains in rubber; the hard segments act as physical cross-linking points, enabling the material to maintain its shape at room temperature, much like the chains in thermoplastics. This unique molecular structure endows TPEs with excellent properties, including good elasticity, allowing them to return to their original shape after stretching—for example, some TPE toys can quickly recover their original shape after being stretched. Simultaneously, they also possess excellent softness and a comfortable feel, making them widely used in the manufacture of everyday items such as toothbrush handles.

[0003] A thermoplastic elastomer punching device is a piece of equipment used for cutting thermoplastic elastomer materials. It mainly consists of a punch, a die, and a pressure system. Driven by the pressure system, the punch applies pressure to the thermoplastic elastomer material placed on the die, thereby cutting the material into the shape of the die.

[0004] However, some existing thermoplastic elastomer punching devices cannot accurately and stably fix the thermoplastic elastomer during punching. At the moment the punching tool falls at high speed and applies a huge impact force, the thermoplastic elastomer is prone to displacement. This displacement leads to dimensional deviations in the punching, such as uneven cuts and rough edges, resulting in products that do not meet the preset specification accuracy requirements. Ultimately, this affects the yield and production efficiency of the entire thermoplastic elastomer processing and production. Therefore, to address these shortcomings, a thermoplastic elastomer punching device is proposed to solve the aforementioned problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a thermoplastic elastomer punching device, which aims to improve the problem that some existing thermoplastic elastomer punching devices cannot guarantee the stability of the thermoplastic elastomer position during the punching process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A thermoplastic elastomer punching device includes an outer frame. A drive assembly for providing power is provided on the rear side of the outer frame. A connecting rod is fixedly connected to the rear side of the drive assembly. Fixed frames are fixedly connected to both the left and right sides of the connecting rod. Rotating shafts are rotatably connected inside each of the two fixed frames. Rotating rods are rotatably connected to the outside of each of the two rotating shafts. Fixed frames are rotatably connected inside each of the two rotating rods. Rotating shafts are rotatably connected to the outside of each of the two fixed frames. Two sliding grooves are formed on the rear side of the inner side of the outer frame. Sliding rods are fixedly connected to the front sides of each of the two rotating shafts. Clamping plates are fixedly connected to the front sides of each of the two sliding rods. A placement frame is fixedly connected to the bottom side of the inner side of the outer frame. Two guide rods are fixedly connected to the opposite sides of each of the two clamping plates. A punching assembly for punching is provided on the top of the outer frame.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a cylinder, the front side of which is mounted on the rear side of the outer frame, and a push rod is fixedly connected to the output end of the cylinder. The rear side of the push rod is fixedly connected to the front side of the connecting rod.

[0010] As a further description of the above technical solution:

[0011] The punching assembly includes a hydraulic cylinder, the bottom of which is mounted on the top of the outer frame. A cutter is fixedly connected to the output end of the hydraulic cylinder. Guide frames are fixedly connected to both the left and right sides of the cutter. Guide grooves are provided on both the left and right sides inside the outer frame.

[0012] As a further description of the above technical solution:

[0013] A cylinder two is installed at the bottom of the outer frame. A push rod two is fixedly connected to the output end of the cylinder two. A connecting plate is fixedly connected to the top of the push rod two. A movable ball is fixedly connected to the top of the connecting plate. A lifting plate is movably connected to the top of the movable ball. Two positioning slots are opened on the top front side of the lifting plate. Two positioning frames are fixedly connected to the top of the placement frame. A collection frame is fixedly connected to the front side of the outer frame. A guide plate is fixedly connected to the front side of the placement frame.

[0014] As a further description of the above technical solution:

[0015] The sliding rod is externally slidably connected to the inside of the slide groove, and the clamping plate is externally slidably connected to the inside of the placement frame;

[0016] As a further description of the above technical solution:

[0017] The lifting plate is externally slidably connected to the inside of the placement frame, and the positioning frame is externally slidably connected to the inside of the positioning groove;

[0018] As a further description of the above technical solution:

[0019] The guide rod is slidably connected to the outside of the placement frame, and the bottom of the clamping plate is slidably connected to the top of the lifting plate;

[0020] As a further description of the above technical solution:

[0021] The connecting plate is externally slidably connected to the inside of the placement frame, and the guide rod is externally slidably connected to the inside of the outer frame.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, cylinder one drives push rod one, which in turn drives the connecting rod to move. When the connecting rod moves, the rotating rod rotates around the rotating shaft one, and through the connection with the fixed frame two and the rotating shaft two, it drives the sliding rod to slide in the slide groove, which in turn drives the clamping plate to move. During the sliding process, it achieves opposite or opposite movements, thereby stably clamping the thermoplastic elastomer, so that the thermoplastic elastomer always maintains a fixed position during the punching process, providing a stable foundation for the subsequent punching action of the cutter, greatly ensuring the accuracy of punching, effectively reducing the punching error caused by material displacement, and improving product quality.

[0024] 2. In this utility model, cylinder two pushes push rod two upward, causing the connecting plate to rise accordingly. The force is then transmitted to the lifting plate via the movable ball at the top. As the lifting plate moves upward, the positioning frame slides into the positioning groove, restricting some degrees of freedom of the lifting plate. This causes the front side to be stressed and tilted due to the movable ball's connection characteristics. At this time, the thermoplastic elastomer, originally placed on the lifting plate and punched, slides down the guide plate on the front side of the placement frame under gravity, eventually falling into the collection box on the front side of the outer frame for collection. The entire ejection and unloading process is smooth and efficient, eliminating the need for manual unloading, significantly saving unloading time and greatly improving production efficiency. Furthermore, the tilted design of the guide plate and the reasonable layout of the collection box ensure that the material can be collected smoothly and accurately, further optimizing the unloading process. Attached Figure Description

[0025] Figure 1 This is a perspective view of the thermoplastic elastomer punching device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the outer frame structure of the thermoplastic elastomer punching device proposed in this utility model;

[0027] Figure 3This is a schematic diagram of the lifting plate structure of the thermoplastic elastomer punching device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the connecting rod structure of the thermoplastic elastomer punching device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the push rod structure of the thermoplastic elastomer punching device proposed in this utility model.

[0030] Legend:

[0031] 1. Outer frame; 2. Cylinder 1; 3. Push rod 1; 4. Connecting rod; 5. Fixed frame 1; 6. Rotating shaft 1; 7. Rotating rod; 8. Fixed frame 2; 9. Rotating shaft 2; 10. Slide groove; 11. Sliding rod; 12. Clamping plate; 13. Placement frame; 14. Guide rod; 15. Hydraulic cylinder; 16. Cutter; 17. Guide frame; 18. Guide groove; 19. Cylinder 2; 20. Push rod 2; 21. Connecting plate; 22. Movable ball; 23. Lifting plate; 24. Positioning groove; 25. Positioning frame; 26. Collection frame; 27. Guide plate. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3This utility model provides an embodiment of a thermoplastic elastomer punching device, including an outer frame 1. The outer frame 1 serves as the basic framework of the entire thermoplastic elastomer punching device, providing support and protection. A drive assembly for providing power is located on the rear side of the outer frame 1. The drive assembly includes a cylinder 2, with its front side mounted on the rear side of the outer frame 1. A push rod 3 is fixedly connected to the output end of the cylinder 2. When the cylinder 2 is activated, the internal air pressure change drives the piston to move, thereby causing the push rod 3 to move stably forward or backward. The rear side of the push rod 3 is fixedly connected to the front side of a connecting rod 4. The rear side of the drive assembly is fixedly connected to the connecting rod 4. After the cylinder 2 is activated, the push rod 3 pushes the connecting rod 4 to move. Fixed frames 5 are fixedly connected to both sides of the connecting rod 4. Rotating shafts 6 are rotatably connected inside each of the two fixed frames 5. When the connecting rod 4 moves the fixed frames 5, it causes the rotating shafts 6 to move. The fixed frames 5 provide stable support and rotation space for the rotating shafts 6. Rotating rods 7 are rotatably connected to the outside of both rotating shafts 6. The displacement of the connecting rods 4 causes rotating shafts 6 to drive rotating rods 7 to rotate. Fixed frames 8 are rotatably connected inside both rotating rods 7. Rotating shafts 9 are rotatably connected to the outside of both fixed frames 8. Rotating shafts 9 convert the rotational motion of rotating rods 7 into the linear sliding motion of sliding rods 11.

[0034] Two sliding grooves 10 are formed on the rear inner side of the outer frame 1. Sliding rods 11 are fixedly connected to the front of each of the two rotating shafts 9. The outer side of the sliding rods 11 is slidably connected to the inside of the sliding grooves 10, providing a precise sliding track for the sliding rods 11. Clamping plates 12 are fixedly connected to the front of each of the two sliding rods 11. When the rotating rod 7 rotates, the sliding rods 11 slide back and forth along the sliding grooves 10, converting the rotational power into a lateral clamping force of the clamping plates 12. A placement frame 13 is fixedly connected to the bottom inner side of the outer frame 1. The outer side of the clamping plates 12 is slidably connected to the inside of the placement frame 13, which is the initial placement position for the thermoplastic elastomer. Two guide rods 14 are fixedly connected to the opposite sides of the two clamping plates 12. The outer side of the guide rods 14 is slidably connected to the inside of the outer frame 1, and the outer side of the guide rods 14 is slidably connected to the inside of the placement frame 13. The guide rods 14 assist in stabilizing the movement of the clamping plates 12.

[0035] Reference Figures 2 to 3The top of the outer frame 1 is equipped with a punching assembly, which includes a hydraulic cylinder 15. The bottom of the hydraulic cylinder 15 is mounted on the top of the outer frame 1, and the hydraulic cylinder 15 serves as the power source for the punching action. A cutter 16 is fixedly connected to the output end of the hydraulic cylinder 15. The cutter 16 is a structure that directly punches the thermoplastic elastomer. Guide frames 17 are fixedly connected to both the left and right sides of the cutter 16. Guide grooves 18 are provided on both the left and right sides of the interior of the outer frame 1. The guide grooves 18 provide sliding tracks for the guide frames 17, ensuring that the path of the cutter 16 punching is vertically downward each time, accurately acting on the thermoplastic elastomer and improving the punching quality.

[0036] Reference Figures 3 to 5 A cylinder 19 is installed at the bottom of the outer frame 1. A push rod 20 is fixedly connected to the output end of the cylinder 19. After punching, the cylinder 19 controls the up and down movement of the push rod 20 to start the subsequent material unloading process. A connecting plate 21 is fixedly connected to the top of the push rod 20. The outside of the connecting plate 21 is slidably connected to the inside of the placement frame 13. A movable ball 22 is fixedly connected to the top of the connecting plate 21. The connecting plate 21 acts as a transition connection, receiving the upward thrust from the push rod 20 and transmitting this force to the lifting plate 23 through the movable ball 22. The top of the movable ball 22 is movably connected to the lifting plate 23. The outside of the lifting plate 23 is slidably connected to the inside of the placement frame 13. After punching, the lifting plate 23 moves upward through the coordinated action of the cylinder 19, the push rod 20, the connecting plate 21, and the movable ball 22. When the positioning frame 25 slides into the positioning groove 24, the front side of the lifting plate 23 is subjected to force and tilts due to the movable connection of the movable ball 22. The bottom of the clamping plate 12 is slidably connected to the top of the lifting plate 23. Two positioning grooves 24 are opened on the front side of the top of the lifting plate 23. Two positioning frames 25 are fixedly connected to the top of the placement frame 13. The outside of the positioning frame 25 is slidably connected to the inside of the positioning groove 24. The positioning frame 25 plays a guiding and limiting role during the lifting process of the lifting plate 23. A collection frame 26 is fixedly connected to the front side of the outer frame 1. The collection frame 26 is the final collection container for the punched thermoplastic elastomer. A guide plate 27 is fixedly connected to the front side of the placement frame 13. The guide plate 27 provides an inclined sliding channel for the punched thermoplastic elastomer.

[0037] Working Principle: When using this device to punch thermoplastic elastomers, the thermoplastic elastomer is first placed inside the placement frame 13. Then, cylinder 2 is activated, which drives push rod 3 and connecting rod 4 to move. This causes fixed frame 5 to move. As the connecting rod 4 moves, rotating rod 7 rotates. The rotation of rotating rod 7 outside rotating shaft 6 and fixed frame 8 causes sliding rod 11 to slide inside slide groove 10, which in turn drives clamping plate 12 to move. The clamping plate 12 then clamps and fixes the thermoplastic elastomer. Then, hydraulic cylinder 15 is activated to drive cutter 16 downward. The guide frame 17 slides inside the guide groove 18, allowing the thermoplastic elastomer to be punched by the cutter 16. After punching, the hydraulic cylinder 15 is controlled to reset the cutter 16. Then, the cylinder 2 19 is activated to drive the push rod 20 and the connecting plate 21 to move upward, which in turn causes the movable ball 22 and the lifting plate 23 to move upward. At this time, the lifting plate 23 slides inside the placement frame 13. Finally, the positioning frame 25 slides into the positioning groove 24. At this time, the front side of the lifting plate 23 is subjected to force, and the lifting plate 23 tilts due to the movable connection of the movable ball 22, causing the punched thermoplastic elastomer to fall along the guide plate 27 into the collection frame 26 for collection.

[0038] 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 thermo plastic elastomer die cutting apparatus comprising an outer frame (1), characterised in that: The rear side of the outer frame (1) is provided with a driving assembly for providing power, the rear side of the driving assembly is fixedly connected with a connecting rod (4), the left and right sides of the connecting rod (4) are fixedly connected with a fixed frame one (5), the interiors of the two fixed frame ones (5) are rotatably connected with a rotating shaft one (6), the exteriors of the two rotating shaft ones (6) are rotatably connected with a rotating rod (7), the interiors of the two rotating rods (7) are rotatably connected with a fixed frame two (8), the exteriors of the two fixed frame twos (8) are rotatably connected with a rotating shaft two (9), the interior rear side of the outer frame (1) is provided with two sliding grooves (10), the front sides of the two rotating shaft twos (9) are fixedly connected with a sliding rod (11), the front sides of the two sliding rods (11) are fixedly connected with a clamping plate (12), the interior bottom side of the outer frame (1) is fixedly connected with a placing frame (13), the far sides of the two clamping plates (12) are fixedly connected with two guide rods (14), and the top of the outer frame (1) is provided with a punching assembly for punching.

2. The thermoplastic elastomer die cutting apparatus according to claim 1, characterized by: The driving assembly comprises a cylinder one (2), the front side of the cylinder one (2) is mounted on the rear side of the outer frame (1), and the output end of the cylinder one (2) is fixedly connected with a push rod one (3).

3. The thermoplastic elastomer die cutting apparatus of claim 1, wherein: The punching assembly comprises a hydraulic cylinder (15), the bottom of the hydraulic cylinder (15) is mounted on the top of the outer frame (1), the output end of the hydraulic cylinder (15) is fixedly connected with a cutter (16), the left and right sides of the cutter (16) are fixedly connected with a guide bracket (17), and the left and right sides of the interior of the outer frame (1) are provided with guide grooves (18).

4. The thermoplastic elastomer die cutting apparatus of claim 1, wherein: The bottom of the outer frame (1) is mounted with a cylinder two (19), the output end of the cylinder two (19) is fixedly connected with a push rod two (20), the top of the push rod two (20) is fixedly connected with a connecting disc (21), the top of the connecting disc (21) is fixedly connected with a movable ball (22), the top of the movable ball (22) is movably connected with a jacking plate (23), the top front side of the jacking plate (23) is provided with two positioning grooves (24), the top of the placing frame (13) is fixedly connected with two positioning brackets (25), the front side of the outer frame (1) is fixedly connected with a collecting frame (26), and the front side of the placing frame (13) is fixedly connected with a guide plate (27).

5. The thermoplastic elastomer die cutting apparatus of claim 1, wherein: The exterior of the sliding rod (11) is slidably connected in the interior of the sliding groove (10), and the exterior of the clamping plate (12) is slidably connected in the interior of the placing frame (13).

6. The thermoplastic elastomer die cutting apparatus of claim 4, wherein: The exterior of the jacking plate (23) is slidably connected in the interior of the placing frame (13), and the exterior of the positioning bracket (25) is slidably connected in the interior of the positioning groove (24).

7. The thermoplastic elastomer die cutting apparatus of claim 4, wherein: The exterior of the guide rod (14) is slidably connected in the interior of the placing frame (13), and the bottom of the clamping plate (12) is slidably connected to the top of the jacking plate (23).

8. The thermoplastic elastomer die cutting apparatus of claim 4, wherein: The outer slide connection of the connecting disc (21) is in the inside of the placing frame (13), and the outer slide connection of the guide rod (14) is in the inside of the outer frame (1).

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