Gas injection equipment in FEP (fluorinated ethylene propylene) processing process

Abstract

The invention relates to the technical field of foaming forming equipment, and discloses gas injection equipment in FEP machining process, which comprises a base, an injection molding machine body is fixedly connected to the rear side of the upper part of the base, a supporting plate is fixedly connected to the left front side of the upper part of the base, and sliding plates are slidably connected to the left side and the right side in the supporting plate; sliding grooves are formed in the front side and the rear side of the upper portion of the supporting plate, sliding blocks are fixedly connected to the front side and the rear side of the upper portion of the sliding plate, and clamping blocks are fixedly connected to the upper portions of the sliding blocks on the left side and the right side. A starting air cylinder is controlled to operate to drive a pushing block to move, the pushing block drives a sliding block to move through a connecting block and a connecting groove, the sliding block drives a pulling block to move, and the pulling block drives a clamping jaw to move relatively to clamp the middle of the outer side of an air storage tank. In this way, the gas injection equipment can conveniently, rapidly and stably clamp the gas storage tank, and the safety of the gas injection equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foaming molding equipment, in particular to a gas injection equipment in FEP processing. BACKGROUND

[0002] Currently, the gas injection control and temperature regulation in FEP foaming process still face many technical difficulties. In the existing technology, the stability and safety of the gas injection device are often limited, especially in the fixing device of the gas storage tank and the precise control of gas flow.

[0003] The existing gas injection equipment mostly has the problems of unstable fixing of the gas storage tank, easy vibration or uneven injection during the gas injection process. Such problems not only affect the safety of the equipment, but also affect the gas quantity and the uniformity of injection in the foaming process, and further affect the quality of FEP foaming products. Due to the instability of the support system of the gas storage tank, additional mechanical operation is often needed to ensure its fixation and stability. Such design is not only complex, but also easy to increase the operation risk. The existing pressurizing device and gas flow control system mostly cannot accurately control the flow and pressure of the gas, especially in the case of precise injection of high-pressure gas, the existing technology often cannot provide continuous and adjustable gas injection effect. In the FEP foaming process, the pressurization and injection quantity of nitrogen need to be accurately controlled to ensure the stability of the foaming ratio and the foaming quantity, but the existing technology often causes inconsistent foaming effect due to the instability of gas flow or pressure fluctuation, which affects the quality of the final product. The temperature control problem of FEP melt near the nozzle is also a big problem in the current technology. FEP material is extremely sensitive to temperature change, and too high or too low temperature will cause nozzle blockage or melt degradation, affecting production efficiency and product quality. The temperature control system in the existing technology usually cannot provide accurate temperature regulation under different production conditions, which easily leads to unstable temperature control in the nozzle area, thereby affecting the smooth progress of the FEP processing process. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a gas injection equipment in FEP processing, which solves the problem of uneven foaming and unstable product performance caused by the difficulty in accurately controlling the gas injection quantity and the temperature of the key area in the existing FEP injection foaming process.

[0005] In order to achieve the above object, the application is implemented by the following technical scheme: a gas injection equipment in FEP processing process, comprising a base, a injection molding machine body is fixedly connected to the upper rear side of the base, a supporting plate is fixedly connected to the upper left front side of the base, sliding plates are slidably connected to the inside left and right sides of the supporting plate, sliding grooves are formed in the upper front and rear sides of the supporting plate, sliding blocks are fixedly connected to the upper front and rear sides of the sliding plates, clamping blocks are fixedly connected to the upper parts of the left and right sides of the sliding blocks, a bidirectional screw is threadedly connected to the middle part of the sliding plate, an installation block is fixedly connected to the left side front part of the base, a motor is fixedly connected to the upper part of the installation block, a gas storage tank is arranged on the upper middle part of the supporting plate, a gas outlet is fixedly connected to the upper part of the gas storage tank, an installation plate is fixedly connected to the front part of the supporting plate, an installation groove is formed in the inside of the installation plate, a nozzle is arranged in the inside of the injection molding machine body, a limiting assembly is arranged in the inside of the installation groove for clamping and limiting the gas storage tank, a supporting block is fixedly connected to the left front side of the injection molding machine body, a gas injection assembly is arranged on the upper part of the supporting block for injecting gas in FEP processing process, and a temperature control assembly is arranged on the upper left front side of the injection molding machine body for preventing FEP from being blocked or overheated and degraded.

[0006] Preferably, the limiting assembly comprises a mounting frame fixedly connected to the inside of the installation groove, limiting grooves are formed in the inside rear side of the mounting frame, limiting blocks are slidably connected to the inside of the limiting grooves, sliding blocks are fixedly connected to the opposite side of the limiting blocks, connecting grooves are formed in the opposite side of the sliding blocks, a gas cylinder is fixedly connected to the front side of the mounting frame, a pushing block is fixedly connected to the output end of the gas cylinder, connecting blocks are fixedly connected to the left and right sides of the pushing block, a pulling block is connected to the rear side of the sliding block, and a clamping jaw is fixedly connected to the rear side of the pulling block.

[0007] Preferably, the gas injection assembly comprises a gas booster pump fixedly connected to the upper part of the supporting block, a first connecting pipe is fixedly connected to the input end of the gas booster pump, a second threaded sleeve is threadedly connected to the upper part of the first connecting pipe, a U-shaped pipe is threadedly connected to the inside of the second threaded sleeve, a first threaded sleeve is threadedly connected to the end of the U-shaped pipe away from the second threaded sleeve, a second connecting pipe is fixedly connected to the output end of the gas booster pump, a mass flow controller is fixedly connected to the upper left front side of the injection molding machine body, and an air outlet pipe is fixedly connected to the output end of the mass flow controller.

[0008] Preferably, the temperature control assembly comprises a refrigeration box fixedly connected to the left front side of the middle of the injection molding machine body, a first micro infusion pump fixedly connected to the upper part of the refrigeration box, a first liquid suction pipe fixedly connected to the input end of the first micro infusion pump, a first infusion pipe fixedly connected to the output end of the first micro infusion pump, a plurality of spray holes evenly arranged in the middle of the rear side of the nozzle, a temperature sensor fixedly connected to the inner wall of the nozzle, a refrigeration pipe fixedly connected to the rear side of the inner wall of the nozzle, a first return pipe fixedly connected to the left front side of the refrigeration pipe, a heating box fixedly connected to the left front side of the middle of the injection molding machine body, a second micro infusion pump fixedly connected to the upper part of the heating box, a second liquid suction pipe fixedly connected to the input end of the second micro infusion pump, a second infusion pipe fixedly connected to the output end of the second micro infusion pump, a second return pipe fixedly connected to the right side of the heating box, and a heating pipe fixedly connected to the end of the second return pipe away from the heating box.

[0009] Preferably, the motor output end is fixedly connected with the bidirectional screw, and the sliding block is slidingly connected in the sliding groove.

[0010] Preferably, the gas storage tank is arranged on the opposite side of the clamping block.

[0011] Preferably, the connecting block is slidingly connected in the connecting groove, and the sliding block is slidingly connected in the mounting bracket.

[0012] Preferably, the first threaded sleeve is connected with the gas outlet through threads, and the end of the gas outlet pipe away from the mass flow controller is fixedly connected with the nozzle.

[0013] Preferably, the end of the first infusion pipe away from the first micro infusion pump is fixedly connected with the refrigeration pipe, the end of the first liquid suction pipe away from the first micro infusion pump is fixedly connected with the refrigeration box, and the heating pipe is fixedly connected to the rear side of the inner wall of the nozzle.

[0014] Preferably, the first micro infusion pump and the second micro infusion pump are electrically connected with the temperature sensor, the end of the second liquid suction pipe away from the second micro infusion pump is fixedly connected with the heating box, and the end of the second infusion pipe away from the second micro infusion pump is fixedly connected with the heating pipe.

[0015] Working principle: when the gas tank needs to be clamped and positioned, the gas tank is placed on the middle of the supporting plate, the control starts the motor to drive the bidirectional screw to rotate, the bidirectional screw drives the sliding plate to move, the sliding plate drives the sliding block to slide in the sliding groove, the sliding block drives the clamping block to move to clamp the lower part of the outer side of the gas tank, then the control starts the cylinder to drive the push block to move, the push block drives the sliding block to move through the connecting block and the connecting groove, the sliding block drives the pull block to move, the pull block drives the clamping jaw to move relatively to clamp the middle part of the outer side of the gas tank, so that the gas injection equipment can quickly and stably clamp the gas tank, and the safety of the gas injection equipment is improved, since the FEP melt in the injection molding machine body is in a high pressure state, in order to ensure that the gas can be smoothly injected, the injection pressure must be stably higher than the melt back pressure, the nitrogen in the gas tank is introduced into the U-shaped pipe through the gas outlet, then the nitrogen is introduced into the gas booster pump through the first connecting pipe, the nitrogen is secondarily pressurized by the gas booster pump, which provides necessary conditions for successful injection of nitrogen into the melt, the pressurized nitrogen is input into the mass flow controller through the second connecting pipe, the mass flow of the gas is closed loop controlled by the mass flow controller, a constant and repeatable amount of gas is input into the nozzle, the stability of the foaming amount and the foaming ratio is ensured, so that the feasibility problem of high pressure injection is solved, the precision control of the foaming process is realized, and the technical basis for manufacturing high performance and high quality FEP foamed products is formed, the threshold value of the temperature sensor is set, when the temperature sensor detects that the temperature is higher than the threshold value, the first micro infusion pump is controlled to start, the first liquid suction pipe is operated to suck the refrigerant in the refrigeration tank into the first micro infusion pump, then the refrigerant is input into the refrigeration pipe through the first infusion pipe, the FEP melt near the nozzle is cooled by the refrigeration pipe, finally the refrigerant is introduced into the refrigeration tank through the first return pipe for circulation, when the temperature sensor detects that the temperature is lower than the threshold value, the second micro infusion pump is controlled to start, the second liquid suction pipe is operated to suck the heating oil in the heating tank into the second micro infusion pump, then the heating oil is input into the refrigeration pipe through the second infusion pipe, the FEP melt near the nozzle is heated by the heating pipe, finally the heating oil is introduced into the heating tank through the second return pipe for circulation, so that the temperature of the nozzle can be accurately controlled by the gas injection equipment, and FEP is prevented from solidifying and blocking or overheating and degrading at the nozzle.

[0016] The application provides a gas injection equipment in a FEP processing process. 1、The gas injection equipment can quickly and stably clamp the gas tank by placing the gas tank on the middle of the supporting plate, controlling the cylinder to drive the push block to move, the push block drives the sliding block to move through the connecting block and the connecting groove, the sliding block drives the pull block to move, and the pull block drives the clamping jaw to move relatively to clamp the middle part of the outer side of the gas tank, thereby improving the safety of the gas injection equipment.

[0017] The application introduces the nitrogen in the gas tank into the U-shaped pipe through the gas outlet, then introduces the nitrogen into the gas booster pump through the first connecting pipe, and the nitrogen is secondly pressurized by the gas booster pump, which provides the necessary conditions for the successful injection of the nitrogen into the melt, the pressurized nitrogen is input into the mass flow controller through the second connecting pipe, the mass flow of the gas is closed-loop controlled by the mass flow controller, the constant and repeatable gas amount is input into the nozzle, the stability of the foaming amount and the foaming ratio is ensured, the feasibility problem of the high-pressure injection is solved, the precise control of the foaming process is realized, and the technical basis for manufacturing the high-performance and high-quality FEP foaming product is formed.

[0018] The application sets a threshold value for the temperature sensor, when the temperature sensor detects that the temperature is higher than the threshold value, the first micro infusion pump is controlled to input the refrigerant into the refrigeration pipe, the FEP melt near the nozzle is refrigerated through the refrigeration pipe, the refrigerant is introduced into the refrigeration tank through the first return pipe for circulation, when the temperature sensor detects that the temperature is lower than the threshold value, the second micro infusion pump is controlled to input the heating oil into the heating pipe, the FEP melt near the nozzle is heated through the heating pipe, finally the heating oil is introduced into the heating tank through the second return pipe for circulation, so that the nozzle temperature of the gas injection equipment can be accurately controlled, and the FEP is prevented from being solidified and blocked or overheated and degraded at the nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the application; Figure 2 It is an enlarged view of A in Figure 1 Figure 3 It is a left view of the application; Figure 4 It is an enlarged view of B in Figure 3 Figure 5 It is a schematic view of the gas injection structure of the application; Figure 6 It is a rear view of the gas injection structure of the application; Figure 7 It is a sectional view of the application; Figure 8 It is a sectional view of the application; Figure 9 It is an exploded view of the application.

[0020] ​​The components include: 1. Base; 2. Injection molding machine body; 3. Support plate; 4. Sliding plate; 5. Slide groove; 6. Slider; 7. Clamping block; 8. Bidirectional screw; 9. Mounting block; 10. Motor; 11. Mounting plate; 12. Mounting groove; 13. Mounting bracket; 14. Limiting groove; 15. Limiting block; 16. Sliding block; 17. Connecting groove; 18. Cylinder; 19. Pushing block; 20. Connecting block; 21. Pulling block; 22. Gripper; 23. Air tank; 24. Air outlet; 25. First threaded sleeve; 26. U-shaped tube; 27. Second threaded sleeve; 28. Threaded sleeve; 29. ​​Support block; 30. Gas booster pump; 31. First connecting pipe; 32. Second connecting pipe; 33. Mass flow controller; 34. Gas outlet pipe; 35. Nozzle; 36. Spray hole; 37. Cooling pipe; 38. Heating pipe; 39. First reflux pipe; 40. Refrigeration box; 41. First infusion pipe; 42. First suction pipe; 43. Second reflux pipe; 44. Heating box; 45. Second micro infusion pump; 46. Second infusion pipe; 47. Second suction pipe; 48. Temperature sensor. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: Please see the appendix Figure 1 -Appendix Figure 9This invention provides a gas injection device for FEP processing, including a base 1. An injection molding machine body 2 is fixedly connected to the upper rear side of the base 1. A support plate 3 is fixedly connected to the upper left front side of the base 1. Sliding plates 4 are slidably connected to both the left and right sides inside the support plate 3. Slide grooves 5 are provided on both the front and rear sides of the upper part of the support plate 3. Slider blocks 6 are fixedly connected to both the front and rear sides of the upper part of the sliding plates 4. Clamping blocks 7 are fixedly connected to the upper parts of the left and right sliders 6. A bidirectional screw 8 is threadedly connected to the middle of the sliding plate 4. An mounting block 9 is fixedly connected to the front left side of the base 1. A motor 10 is fixedly connected to the upper part of the mounting block 9. A gas storage tank 23 is provided in the upper middle part of the support plate 3. An air outlet 24 is fixedly connected to the upper part of the gas storage tank 23. An mounting plate 11 is fixedly connected to the front of the support plate 3. An mounting groove 12 is provided inside the mounting plate 11. A nozzle 34 is provided inside the injection molding machine body 2. The output end of the motor 10 is fixedly connected to the bidirectional screw 8. The sliders 6 are slidably connected to the slide grooves. Inside the injection molding machine body 2, the gas tank 23 is located on the opposite side of the clamping block 7. The mounting groove 12 is equipped with a limit component for clamping and limiting the gas tank 23. A support block 28 is fixedly connected to the left front side of the injection molding machine body 2. The limit component includes a mounting frame 13, which is fixedly connected inside the mounting groove 12. Limit grooves 14 are opened on all four sides of the rear side of the mounting frame 13. Limit blocks 15 are slidably connected inside the limit grooves 14. Sliding blocks 16 are fixedly connected to the opposite side of the upper and lower limit blocks 15. Connecting grooves 17 are opened on the opposite side of the sliding blocks 16. A cylinder 18 is fixedly connected to the front side of the mounting frame 13. A push block 19 is fixedly connected to the output end of the cylinder 18. Connecting blocks 20 are fixedly connected to the left and right sides of the push block 19. A pulling block 21 is connected to the rear side of the sliding block 16. A gripper 22 is fixedly connected to the rear side of the pulling block 21. The connecting block 20 is slidably connected inside the connecting groove 17. The sliding block 16 is slidably connected inside the mounting frame 13.

[0023] When it is necessary to clamp and position the gas storage tank 23, place the gas storage tank 23 on the middle of the support plate 3, control the start motor 10 to run and drive the bidirectional screw 8 to rotate. The bidirectional screw 8 drives the sliding plate 4 to move. The sliding plate 4 drives the slider 6 to slide inside the slide groove 5. The slider 6 drives the clamping block 7 to move and clamp the lower outer part of the gas storage tank 23. Then control the start cylinder 18 to run and drive the push block 19 to move. The push block 19 drives the sliding block 16 to move through the connecting block 20 and the connecting groove 17. The sliding block 16 drives the pulling block 21 to move. The pulling block 21 drives the gripper 22 to move relative to clamp the middle outer part of the gas storage tank 23. In this way, the gas injection equipment can quickly and stably clamp the gas storage tank 23, which improves the safety of the gas injection equipment.

[0024] Please see the appendix Figure 1 -Appendix Figure 6A gas injection assembly is provided on the upper part of the support block 28 for injecting gas during the FEP processing. The gas injection assembly includes a gas booster pump 29, which is fixedly connected to the upper part of the support block 28. The input end of the gas booster pump 29 is fixedly connected to a first connecting pipe 30. The upper part of the first connecting pipe 30 is threadedly connected to a second threaded sleeve 27. The inside of the second threaded sleeve 27 is threadedly connected to a U-shaped tube 26. The end of the U-shaped tube 26 away from the second threaded sleeve 27 is threadedly connected to a first threaded sleeve 25. The output end of the gas booster pump 29 is fixedly connected to a second connecting pipe 31. A mass flow controller 32 is fixedly connected to the upper left front side of the injection molding machine body 2. The output end of the mass flow controller 32 is fixedly connected to an air outlet 33. The first threaded sleeve 25 is connected to the air outlet 24 through threads. The end of the air outlet 33 away from the mass flow controller 32 is fixedly connected to the nozzle 34.

[0025] First, since the FEP melt inside the injection molding machine body 2 is under high pressure, the injection pressure must be consistently higher than the melt back pressure to ensure smooth gas injection. Nitrogen gas from the gas storage tank 23 is introduced into the U-shaped tube 26 through the gas outlet 24, and then introduced into the gas booster pump 29 through the first connecting pipe 30. The gas booster pump 29 performs secondary pressurization on the nitrogen gas, providing the necessary conditions for successful nitrogen injection into the melt. The pressurized nitrogen gas is input into the mass flow controller 32 through the second connecting pipe 31. The mass flow controller 32 performs closed-loop control of the gas mass flow rate, delivering a constant and repeatable gas volume to the nozzle 34, ensuring the stability of the foaming amount and foaming ratio. This solves the feasibility problem of high-pressure injection and realizes precise control of the foaming process, which together constitute the technical foundation for manufacturing high-performance, high-quality FEP foamed products.

[0026] Please see the appendix Figure 3 -Appendix Figure 7A temperature control component is installed on the upper left front side of the injection molding machine body 2 to prevent FEP from curing and clogging or overheating and degrading. The temperature control component includes a cooling box 39, which is fixedly connected to the upper left front side of the injection molding machine body 2. A first micro infusion pump 40 is fixedly connected to the upper part of the cooling box 39. A first suction pipe 42 is fixedly connected to the input end of the first micro infusion pump 40, and a first infusion pipe 41 is fixedly connected to the output end of the first micro infusion pump 40. Spray holes 35 are evenly distributed in the middle of the rear side of the nozzle 34. A temperature sensor 48 is fixedly connected to the upper part of the inner wall of the nozzle 34. A cooling pipe 36 is fixedly connected to the rear side of the inner wall of the nozzle 34. A first return pipe 38 is fixedly connected to the left front side of the cooling pipe 36. A heating box 44 is fixedly connected to the upper left front side of the upper middle part of the injection molding machine body 2. A second micro infusion pump 45 is fixedly connected to the upper part of the heating box 44. The input end of the liquid pump 45 is fixedly connected to the second suction pipe 47, the output end of the second micro infusion pump 45 is fixedly connected to the second infusion pipe 46, the right side of the heating box 44 is fixedly connected to the second return pipe 43, the end of the second return pipe 43 away from the heating box 44 is fixedly connected to the heating pipe 37, the end of the first infusion pipe 41 away from the first micro infusion pump 40 is fixedly connected to the cooling pipe 36, the end of the first suction pipe 42 away from the first micro infusion pump 40 is fixedly connected to the cooling box 39, the heating pipe 37 is fixedly connected to the rear side of the inner wall of the nozzle 34, the first micro infusion pump 40 and the second micro infusion pump 45 are both electrically connected to the temperature sensor 48, the end of the second suction pipe 47 away from the second micro infusion pump 45 is fixedly connected to the heating box 44, and the end of the second infusion pipe 46 away from the second micro infusion pump 45 is fixedly connected to the heating pipe 37.

[0027] By setting a threshold for the temperature sensor 48, when the temperature sensor 48 detects a temperature higher than the threshold, the first micro-infusion pump 40 is activated, causing the first suction pipe 42 to run and draw refrigerant from inside the refrigeration box 39 into the first micro-infusion pump 40. Then, the refrigerant is fed into the refrigeration pipe 36 through the first infusion pipe 41, and the FEP melt near the nozzle 34 is cooled through the refrigeration pipe 36. Finally, the refrigerant is returned to the refrigeration box 39 through the first return pipe 38 for circulation. When the temperature sensor 48 detects a temperature lower than the threshold, the second micro-infusion pump 45 is activated, causing the second suction pipe 47 to run and draw heating oil from inside the heating box 44 into the second micro-infusion pump 45. Then, the heating oil is fed into the heating pipe 37 through the second infusion pipe 46, and the FEP melt near the nozzle 34 is heated through the heating pipe 37. Finally, the heating oil is returned to the heating box 44 through the second return pipe 43 for circulation. This allows the gas injection device to precisely control the temperature of the nozzle 34, preventing FEP from solidifying, clogging, or overheating and degrading at the nozzle 34.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas injection device for FEP processing, comprising a base (1), characterized in that, The upper rear side of the base (1) is fixedly connected to the injection molding machine body (2). The upper left front side of the base (1) is fixedly connected to the support plate (3). The left and right sides of the support plate (3) are slidably connected to the sliding plate (4). The upper front and rear sides of the support plate (3) are provided with sliding grooves (5). The upper front and rear sides of the sliding plate (4) are fixedly connected to the slider (6). The upper parts of the slider (6) on both the left and right sides are fixedly connected to the clamping block (7). The middle part of the sliding plate (4) is threaded with a double screw (8). The front left side of the base (1) is fixedly connected to the mounting block (9). The upper part of the mounting block (9) is fixedly connected to the motor (10). The upper middle part of the support plate (3) is provided with a storage tank. Gas tank (23), with an outlet (24) fixedly connected to the upper part of the gas tank (23), and an mounting plate (11) fixedly connected to the front part of the support plate (3). An mounting groove (12) is provided inside the mounting plate (11). A nozzle (34) is provided inside the injection molding machine body (2). A limit component is provided inside the mounting groove (12) for clamping and limiting the gas tank (23). A support block (28) is fixedly connected to the left front side of the injection molding machine body (2). A gas injection component is provided on the upper part of the support block (28) for injecting gas during FEP processing. A temperature control component is provided on the upper left front side of the injection molding machine body (2) to prevent FEP from curing and clogging or overheating and degrading.

2. The gas injection device for FEP processing according to claim 1, characterized in that, The limiting component includes a mounting bracket (13), which is fixedly connected inside the mounting groove (12). Limiting grooves (14) are opened on all four sides of the rear side of the mounting bracket (13). Limiting blocks (15) are slidably connected inside the limiting grooves (14). Sliding blocks (16) are fixedly connected to the opposite side of the limiting blocks (15) on the upper and lower sides. Connecting grooves (17) are opened on the opposite side of the sliding blocks (16). A cylinder (18) is fixedly connected to the front side of the mounting bracket (13). A pushing block (19) is fixedly connected to the output end of the cylinder (18). Connecting blocks (20) are fixedly connected to the left and right sides of the pushing block (19). A pulling block (21) is connected to the rear side of the sliding block (16). A gripper (22) is fixedly connected to the rear side of the pulling block (21).

3. The gas injection device for FEP processing according to claim 1, characterized in that, The gas injection assembly includes a gas booster pump (29), which is fixedly connected to the upper part of the support block (28). The input end of the gas booster pump (29) is fixedly connected to a first connecting pipe (30). The upper part of the first connecting pipe (30) is threadedly connected to a second threaded sleeve (27). The inside of the second threaded sleeve (27) is threadedly connected to a U-shaped tube (26). The end of the U-shaped tube (26) away from the second threaded sleeve (27) is threadedly connected to a first threaded sleeve (25). The output end of the gas booster pump (29) is fixedly connected to a second connecting pipe (31). The upper left front side of the injection molding machine body (2) is fixedly connected to a mass flow controller (32). The output end of the mass flow controller (32) is fixedly connected to an outlet pipe (33).

4. The gas injection device for FEP processing according to claim 1, characterized in that, The temperature control component includes a refrigeration box (39), which is fixedly connected to the upper left front side of the injection molding machine body (2). A first micro infusion pump (40) is fixedly connected to the upper part of the refrigeration box (39). A first suction pipe (42) is fixedly connected to the input end of the first micro infusion pump (40), and a first infusion pipe (41) is fixedly connected to the output end of the first micro infusion pump (40). Spray holes (35) are evenly opened in the middle of the rear side of the nozzle (34). A temperature sensor (48) is fixedly connected to the upper part of the inner wall of the nozzle (34), and a refrigeration pipe (36) is fixedly connected to the rear side of the inner wall of the nozzle (34). The first return pipe (38) is fixedly connected to the left front side of the refrigeration pipe (36). The heating box (44) is fixedly connected to the left front side of the upper middle part of the injection molding machine body (2). The second micro infusion pump (45) is fixedly connected to the upper part of the heating box (44). The second liquid extraction pipe (47) is fixedly connected to the input end of the second micro infusion pump (45). The second infusion pipe (46) is fixedly connected to the output end of the second micro infusion pump (45). The second return pipe (43) is fixedly connected to the right side of the heating box (44). The heating pipe (37) is fixedly connected to the end of the second return pipe (43) away from the heating box (44).

5. A gas injection device for FEP processing according to claim 1, characterized in that, The output end of the motor (10) is fixedly connected to the bidirectional screw (8), and the slider (6) is slidably connected inside the groove (5).

6. A gas injection device for FEP processing according to claim 1, characterized in that, The gas storage tank (23) is located on the opposite side of the clamping block (7).

7. A gas injection device for FEP processing according to claim 2, characterized in that, The connecting block (20) is slidably connected inside the connecting groove (17), and the sliding block (16) is slidably connected inside the mounting bracket (13).

8. A gas injection device for FEP processing according to claim 3, characterized in that, The first threaded sleeve (25) is connected to the air outlet (24) by threads, and the end of the air outlet pipe (33) away from the mass flow controller (32) is fixedly connected to the nozzle (34).

9. A gas injection device for FEP processing according to claim 4, characterized in that, The end of the first infusion tube (41) away from the first micro infusion pump (40) is fixedly connected to the cooling tube (36), the end of the first suction tube (42) away from the first micro infusion pump (40) is fixedly connected to the cooling box (39), and the heating tube (37) is fixedly connected to the rear side of the inner wall of the nozzle (34).

10. A gas injection device for FEP processing according to claim 4, characterized in that, The first micro infusion pump (40) and the second micro infusion pump (45) are electrically connected to the temperature sensor (48). The end of the second suction tube (47) away from the second micro infusion pump (45) is fixedly connected to the heating box (44). The end of the second infusion tube (46) away from the second micro infusion pump (45) is fixedly connected to the heating tube (37).

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