Waterproof sock TPU film spraying equipment

By using the matching setting of double-layer pulleys and pulleys in the waterproof sock TPU film spraying equipment and the technology of vertical pole driving the nozzle rotation, the problems of large work burden, many blind spots and high cost in existing equipment are solved, and a more efficient and economical spraying effect is achieved.

CN222568096UActive Publication Date: 2025-03-07SUZHOU DUKANGNING MEDICAL PROD CO LTD
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Patent Information

Application Number
CN202420472838.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-12
Publication Date
2025-03-07
Estimated Expiration
2034-03-12

AI Technical Summary

Technical Problem

The existing waterproof sock cover TPU film spraying equipment has problems such as large workloads for personnel, many blind spots for spraying, complex equipment structure and high cost.

Method used

The combination of double-layer pulley and pulley is used to drive the nozzle vertically to rotate through the vertical pole, and multi-angle spraying of the waterproof sock cover is achieved, reducing spray blind spots, and completing the entire process through a motor.

Benefits of technology

Improves the spraying effect, reduces costs, simplifies the equipment structure, and reduces the spraying blind spots.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222568096U_ABST
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Abstract

The utility model discloses spraying equipment for a TPU (Thermoplastic Polyurethane) film of a waterproof sock. The spraying equipment comprises a base and an adjusting mechanism, a protective cover is arranged in the middle of the upper end of the base, a protective door is hinged into an opening formed in the right end of the protective cover through a hinge, a mounting base is rotationally connected to the rear side of the upper end of the base through a bearing, a supporting frame is arranged at the upper end of the mounting base, and a fixing frame is arranged on the front side of the upper end of the base. A conveying pipe is arranged in a conveying opening formed in the lower side of the left wall of the protective cover, a conveying valve is connected to the middle of the conveying pipe in series, and the lower end of the conveying pipe communicates with a connecting opening formed in the upper end of the spraying head. According to the waterproof sock TPU film spraying equipment, multi-angle spraying can be conducted on waterproof socks, spraying dead angles are further reduced, the whole process can be completed only through one motor, the spraying effect is improved, and meanwhile the cost is relatively low.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical product production, in particular to a TPU film spraying device for waterproof socks. Background Art

[0002] After surgical operation and plastering of the legs, patients usually need to wear special socks to wrap the feet and legs. The conventional socks commonly used are made of pure cotton and pure polyester, and then sprayed with a layer of elastic TPU film on the surface. In this way, while ensuring that the inner pure cotton or pure polyester material is warm and sweat-absorbent and elastic and easy to put on and take off, the elastic TPU film on the surface is used to achieve waterproof function, thereby effectively reducing infection.

[0003] In the process of spraying TPU film on waterproof socks, the waterproof socks are usually placed on the outside of the support frame, and then the staff holds the spray gun and injects the TPU film coating into the spray gun through the conveying equipment, and then sprays it out through the nozzle, and finally sprays the TPU film coating on the surface.

[0004] At present, when spraying TPU film on waterproof socks, although the spraying work can be done manually with a handheld spray gun, the workload of the personnel is heavy. After working for a long time, the staff's attention decreases, which will result in some spraying dead angles and reduce the spraying quality. The waterproof socks TPU film spraying equipment uses an electric push rod and other adjustment devices to drive the nozzle to move while using a driving device to drive the waterproof socks to rotate. Although this method reduces the spraying dead angle, it makes the internal structure of the entire waterproof socks TPU film spraying equipment more complicated and the cost is relatively high. For this reason, we propose a waterproof socks TPU film spraying equipment. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a waterproof socks TPU film spraying equipment. Through the coordination of the double-layer pulley and the pulley, the position of the waterproof socks is adjusted and the nozzle is driven to rotate vertically by the vertical pole, so that the waterproof socks can be sprayed at multiple angles to reduce blind spots in the spraying. The whole process can be completed with only one motor, which improves the spraying effect and has a relatively low cost, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof socks TPU film spraying device, comprising a base and an adjustment mechanism;

[0007] Base: A protective cover is provided in the middle of the upper end thereof, a protective door is hinged in the opening opened at the right end of the protective cover, a mounting seat is rotatably connected to the rear side of the upper end of the base through a bearing, a support frame is provided at the upper end of the mounting seat, a fixing frame is provided at the front side of the upper end of the base, a connecting rod is rotatably connected to the upper side of the fixing frame through a bearing, a nozzle is provided in the middle of the outer arc surface of the connecting rod, a delivery pipe is provided in the delivery port opened at the lower side of the left wall of the protective cover, a delivery valve is connected in series in the middle of the delivery pipe, and the lower end of the delivery pipe is connected to the connection port provided at the upper end of the nozzle;

[0008] Adjustment mechanism: It includes a vertical pole and a limit rod. The vertical pole is slidably connected to a sliding hole opened at the upper end of the base. A limit rod is arranged on the upper side of the outer arc surface of the vertical pole. The limit rod is located in a limit groove arranged at the front end of the nozzle. Through the cooperation of the double-layer pulley and the pulley, the nozzle is driven to rotate vertically through the vertical pole while adjusting the position of the waterproof socks, so as to spray the waterproof socks at multiple angles and reduce dead angles in spraying. The whole process can be completed with only one motor, which improves the spraying effect and has relatively low cost.

[0009] Furthermore, it also includes a control switch, which is arranged at the front end of the protective cover, and the input end of the control switch is electrically connected to the external power supply, so as to be able to regulate the electrical components inside the device.

[0010] Furthermore, the adjustment mechanism also includes a mounting plate, a spring, a guide slide column, a push plate, a push rod and a trapezoidal block. The mounting plate is arranged at the lower end of the vertical pole, the spring is arranged between the upper end of the mounting plate and the top wall of the base, the spring sleeve is arranged on the outside of the lower side of the vertical pole, the guide slide column is arranged in a slide groove opened on the left side of the bottom wall of the base, the middle part of the outer arc surface of the guide slide column is slidably connected with the push plate, the push plate is slidably connected to the inner wall of the slide groove, the left end of the push plate is provided with a push rod, the trapezoidal block is arranged at the lower end of the mounting plate, the left end of the push plate is in contact with the inclined surface provided at the right end of the trapezoidal block, and the spraying angle of the nozzle can be adjusted through the vertical pole.

[0011] Furthermore, the adjustment mechanism also includes a return spring, which is arranged between the left end of the push plate and the left wall of the slide groove. The return spring is sleeved on the outside of the left side of the guide slide column and can drive the push rod to move and reset through the push plate.

[0012] Furthermore, it also includes a mounting rod and a cam, wherein the mounting rod is rotatably connected to the front side of the bottom wall of the base through a bearing, and the cam is arranged on the lower side of the outer arc surface of the mounting rod. The outer arc surface of the cam contacts the right end of the push plate, and can drive the push rod to move through the push plate.

[0013] Furthermore, it also includes an adjusting rod, a half gear, a fixed rod, a gear and a pulley. The adjusting rod is rotatably connected to the rear side of the bottom wall of the base through a bearing, the half gear is arranged on the upper side of the outer arc surface of the adjusting rod, the fixed rod is arranged at the lower end of the mounting seat, the gear is arranged in the middle of the outer arc surface of the fixed rod, the half gear and the gear are installed in coordination, and the pulleys are respectively arranged on the lower side of the outer arc surface of the adjusting rod and the upper side of the outer arc surface of the mounting rod, and can drive the support frame to rotate through the fixed rod.

[0014] Furthermore, it also includes a motor and a double-layer pulley, wherein the motor is arranged at the lower end of the base, and the double-layer pulley is arranged at the upper end of the motor output shaft, the pulleys are connected to the double-layer pulley through belts, the input end of the motor is electrically connected to the output end of the control switch, and can drive the adjustment rod and the installation rod to rotate through the pulley.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] During the spraying process, the motor starts to run through the control switch, and the output shaft of the motor drives the double-layer pulley to rotate. The double-layer pulley drives the front pulley to rotate through the belt, and the front pulley drives the cam to rotate through the mounting rod. When the contact point between the cam and the push plate changes from the center to the center, the push plate is subjected to the pressure of the cam, which drives the push rod to move to the left, and the reset spring contracts. At this time, the trapezoidal block begins to drive the vertical rod to move upward through the mounting plate after being subjected to the pressure of the push rod. The spring contracts, and the limit rod slides inside the limit groove and rotates relative to the limit groove, so that the limit rod drives the nozzle to rotate downward. When the contact point between the cam and the push plate changes from the center to the center, the elastic force generated by the extension of the reset spring drives the push rod to move right and reset through the push plate. At this time, the push rod gradually separates from the trapezoidal block, and then the elastic force generated by the extension of the spring drives the vertical rod to move downward through the mounting plate. The limit rod is in the limit The inside of the groove slides and rotates relative to the limit groove, so that the limit rod drives the nozzle to rotate upward. During the rotation of the double-layer pulley, the double-layer pulley drives the rear pulley to rotate through the belt, and the rear pulley drives the half gear to rotate through the adjusting rod. When the half gear is meshed with the gear, the half gear drives the fixed rod to rotate through the gear, and the fixed rod drives the waterproof sock sleeve mounted on the upper end of the support frame to rotate through the mounting seat, thereby spraying the waterproof sock sleeve at multiple angles and reducing dead angles for spraying. Through the coordinated arrangement of the double-layer pulley and the pulley, the nozzle is driven to rotate vertically through the vertical rod while adjusting the position of the waterproof sock sleeve. Therefore, the TPU film of the waterproof sock sleeve is sprayed at multiple angles and dead angles for spraying the TPU film of the waterproof sock sleeve are reduced. The entire process can be completed with only one motor, which improves the spraying effect of the TPU film of the waterproof sock sleeve while also having a relatively low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front side cross-sectional structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the upper side cross-sectional structure of the utility model;

[0020] Figure 4 This is an enlarged structural diagram of point A of the utility model.

[0021] In the figure: 1 base, 2 protective cover, 3 control switch, 4 fixing frame, 5 connecting rod, 6 nozzle, 7 motor, 8 double-layer pulley, 9 adjustment mechanism, 91 mounting plate, 92 spring, 93 guide slide column, 94 push plate, 95 push rod, 96 trapezoidal block, 97 return spring, 98 vertical rod, 99 limit rod, 10 mounting seat, 11 support frame, 12 conveying pipe, 13 mounting rod, 14 cam, 15 adjustment rod, 16 half gear, 17 fixing rod, 18 gear, 19 pulley, 20 protective door. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , This embodiment provides a technical solution: a waterproof socks TPU film spraying device, including a base 1 and an adjustment mechanism 9;

[0024] Base 1: A protective cover 2 is provided in the middle of its upper end, and a protective door 20 is hinged in the opening opened at the right end of the protective cover 2. The rear side of the upper end of the base 1 is rotatably connected to a mounting seat 10 through a bearing, and a support frame 11 is provided at the upper end of the mounting seat 10. A fixing frame 4 is provided at the front side of the upper end of the base 1, and a connecting rod 5 is rotatably connected to the upper side of the fixing frame 4 through a bearing. A nozzle 6 is provided in the middle of the outer arc surface of the connecting rod 5. A conveying pipe 12 is provided in the conveying port opened at the lower side of the left wall of the protective cover 2, and the middle of the conveying pipe 12 is provided. The delivery valve is connected in series with the delivery pipe 12, and the lower end of the delivery pipe 12 is connected to the connection port set at the upper end of the nozzle 6. When working, the protective door 20 is opened, and the waterproof socks to be sprayed with TPU film are put on the outside of the support frame 11, and then the delivery valve is opened, and the protective door 20 is closed again. The external delivery equipment injects the TPU film coating into the inside of the delivery pipe 12, and finally sprays it out through the nozzle 6. Then, the position of the nozzle 6 and the waterproof socks is adjusted by the adjustment device, so as to spray the waterproof socks at multiple angles to reduce the spraying dead angle;

[0025] Adjustment mechanism 9: It includes a vertical rod 98 and a limit rod 99. The vertical rod 98 is slidably connected to the sliding hole opened at the upper end of the base 1. The limit rod 99 is provided on the upper side of the outer arc surface of the vertical rod 98. The limit rod 99 is located in the limit groove provided at the front end of the nozzle 6. The adjustment mechanism 9 also includes a mounting plate 91, a spring 92, a guide slide column 93, a push plate 94, a push rod 95 and a trapezoidal block 96. The mounting plate 91 is provided at the lower end of the vertical rod 7, the spring 92 is provided between the upper end of the mounting plate 91 and the top wall of the base 1, the spring 92 is sleeved on the outer side of the lower side of the vertical rod 7, and the guide slide column 93 is provided at the upper end of the vertical rod 7. The guide slide post 93 is arranged in a slide groove opened on the left side of the bottom wall of the base 1. The middle part of the outer arc surface of the guide slide post 93 is slidably connected with a push plate 94. The push plate 94 is slidably connected with the inner wall of the slide groove. The left end of the push plate 94 is provided with a push rod 95. The trapezoidal block 96 is arranged at the lower end of the mounting plate 91. The left end of the push plate 94 contacts the inclined surface set at the right end of the trapezoidal block 96. The adjustment mechanism 9 also includes a return spring 97. The return spring 97 is arranged between the left end of the push plate 94 and the left wall of the slide groove. The return spring 97 is sleeved on the outside of the left side of the guide slide post 93. During the operation, the driving device starts to operate through the regulation of the control device. When the contact point between the driving device and the push plate 94 changes from the inward center to the outward center, the push plate 94 is pressed by the driving device, thereby driving the push rod 95 to move leftward, and the return spring 97 contracts. At this time, the trapezoidal block 96 starts to drive the vertical rod 98 to move upward through the mounting plate 91 after being pressed by the push rod 95. The spring 92 contracts, and the limit rod 99 slides inside the limit groove and rotates relative to the limit groove, so that the limit rod 99 drives the nozzle 6 to rotate downward. When the driving device and the push plate 94 are in contact, the push plate 94 is pressed by the push rod 95, and the return spring 97 is pressed. When the contact point of the push plate 94 changes from the distal center to the inward center, the elastic force generated by the extension of the reset spring 97 drives the push rod 95 to move rightward and reset through the push plate 94. At this time, the push rod 95 is gradually separated from the trapezoidal block 96. Then the elastic force generated by the extension of the spring 92 drives the vertical rod 98 to move downward through the mounting plate 91. The limit rod 99 slides inside the limit groove and rotates relative to the limit groove, so that the limit rod 99 drives the nozzle 6 to rotate upward, thereby driving the nozzle 6 to rotate vertically through the vertical rod 98, so as to spray the waterproof socks at multiple angles and reduce dead angles for spraying.

[0026] Among them: it also includes a control switch 3, which is arranged at the front end of the protective cover 2, and the input end of the control switch 3 is electrically connected to the external power supply, which can regulate the electrical components inside the device.

[0027] Wherein: it also includes a mounting rod 13 and a cam 14, the mounting rod 13 is rotatably connected to the front side of the bottom wall of the base 1 through a bearing, the cam 14 is arranged on the lower side of the outer arc surface of the mounting rod 13, and the outer arc surface of the cam 14 contacts the right end of the push plate 94. When the contact point between the cam 14 and the push plate 94 changes from the centroid to the telecentricity, the push plate 94 is subjected to the pressure of the cam 14, thereby driving the push rod 95 to move to the left, and the reset spring 97 contracts. At this time, the trapezoidal block 96 is subjected to the pressure of the push rod 95 and begins to drive the vertical rod 98 to move upward through the mounting plate 91.

[0028] Wherein: it also includes an adjusting rod 15, a half gear 16, a fixing rod 17, a gear 18 and a pulley 19, the adjusting rod 15 is rotatably connected to the rear side of the bottom wall of the base 1 through a bearing, the half gear 16 is arranged on the upper side of the outer arc surface of the adjusting rod 15, the fixing rod 17 is arranged at the lower end of the mounting seat 10, the gear 18 is arranged in the middle of the outer arc surface of the fixing rod 17, the half gear 16 and the gear 18 are installed in coordination, the pulley 19 is respectively arranged on the lower side of the outer arc surface of the adjusting rod 15 and the upper side of the outer arc surface of the mounting rod 13, the driving device drives the pulley 19 on the rear side to rotate through the belt, and the pulley 19 on the rear side drives the half gear 16 to rotate through the adjusting rod 15, when the half gear 16 is meshed and connected with the gear 18, the half gear 16 drives the fixing rod 17 to rotate through the gear 18, and the fixing rod 17 drives the waterproof sock sleeve set on the upper end of the support frame 11 to rotate through the mounting seat 10.

[0029] Wherein: it also includes a motor 7 and a double-layer pulley 8, the motor 7 is arranged at the lower end of the base 1, the double-layer pulley 8 is arranged at the upper end of the output shaft of the motor 7, the pulley 19 is connected to the double-layer pulley 8 through a belt, the input end of the motor 7 is electrically connected to the output end of the control switch 3, during the spraying work, through the regulation of the control switch 3, the motor 7 starts to run, the output shaft of the motor 7 drives the double-layer pulley 8 to rotate, the double-layer pulley 8 drives the front pulley 19 to rotate through the belt, the front pulley 19 drives the cam 14 to rotate through the mounting rod 13, and during the rotation of the double-layer pulley 8, the double-layer pulley 8 can also drive the rear pulley 19 to rotate through the belt.

[0030] The working principle of the utility model is as follows:

[0031] Before use, the waterproof socks TPU film spraying device is moved to the designated work location by an external traction device, so that the base 1 is installed and docked with the corresponding work station, thereby achieving support and fixation of the base 1 and the upper equipment;

[0032] During operation, the protective door 20 is opened, and the waterproof socks to be sprayed with TPU film are put on the outside of the support frame 11, and then the delivery valve is opened, and the protective door 20 is closed again. The external delivery equipment injects the TPU film coating into the inside of the delivery pipe 12, and finally sprays it out through the nozzle 6. At this time, through the regulation of the control switch 3, the motor 7 starts to run, and the output shaft of the motor 7 drives the double-layer pulley 8 to rotate, and the double-layer pulley 8 drives the front pulley 19 to rotate through the belt, and the front pulley 19 drives the cam 14 to rotate through the mounting rod 13. When the contact point between the cam 14 and the push plate 94 changes from the inward center to the outward center, the push plate 94 is subjected to the pressure of the cam 14, and then drives the push rod 95 to move to the left, and the reset spring 97 contracts. At this time, the trapezoidal block 96 is subjected to the pressure of the push rod 95 and begins to drive the vertical rod 98 to move upward through the mounting plate 91, and the spring 92 contracts. At this time, the limit rod 99 slides inside the limit groove and rotates relative to the limit groove, so that the limit rod 99 drives The nozzle 6 rotates downward, and when the contact point between the cam 14 and the push plate 94 changes from the distal center to the inward center, the elastic force generated by the extension of the return spring 97 drives the push rod 95 to move rightward and reset through the push plate 94. At this time, the push rod 95 and the trapezoidal block 96 are gradually separated, and then the elastic force generated by the extension of the spring 92 drives the vertical rod 98 to move downward through the mounting plate 91. At this time, the limit rod 99 slides inside the limit groove and rotates relative to the limit groove, so that the limit rod 99 drives the nozzle 6 to rotate upward. During the rotation of the double-layer pulley 8, the double-layer pulley 8 drives the rear pulley 19 to rotate through the belt, and the rear pulley 19 drives the half gear 16 to rotate through the adjusting rod 15. When the half gear 16 is meshed with the gear 18, the half gear 16 drives the fixing rod 17 to rotate through the gear 18, and the fixing rod 17 drives the waterproof sock sleeve mounted on the upper end of the support frame 11 to rotate through the mounting seat 10, thereby spraying the waterproof sock sleeve at multiple angles to reduce the spraying dead angle.

[0033] It is worth noting that the motor 7 disclosed in the above embodiment can be selected as 5IK200A-AF, and the control switch 3 is provided with a control button corresponding to the motor 7 for controlling its switch.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A TPU film spraying device for waterproof socks, characterized by: It comprises a base (1) and an adjustment mechanism (9); Base (1): A protective cover (2) is provided in the middle of the upper end thereof, a protective door (20) is hinged in an opening provided at the right end of the protective cover (2), a mounting seat (10) is rotatably connected to the rear side of the upper end of the base (1) via a bearing, a support frame (11) is provided at the upper end of the mounting seat (10), a fixing frame (4) is provided at the front side of the upper end of the base (1), a connecting rod (5) is rotatably connected to the upper side of the fixing frame (4) via a bearing, a nozzle (6) is provided in the middle of the outer arc surface of the connecting rod (5), a delivery pipe (12) is provided in the delivery port provided at the lower side of the left wall of the protective cover (2), a delivery valve is connected in series in the middle of the delivery pipe (12), and the lower end of the delivery pipe (12) is connected to the connection port provided at the upper end of the nozzle (6); The adjustment mechanism (9) comprises a vertical rod (98) and a limiting rod (99), wherein the vertical rod (98) is slidably connected to a sliding hole provided at the upper end of the base (1), and a limiting rod (99) is provided on the upper side of the outer arc surface of the vertical rod (98), and the limiting rod (99) is located in a limiting groove provided at the front end of the nozzle (6).

2. A waterproof socks TPU film spraying device according to claim 1, characterized in that: It also comprises a control switch (3), which is arranged at the front end of the protective cover (2), and the input end of the control switch (3) is electrically connected to an external power supply.

3. A TPU film spraying device for waterproof socks according to claim 2, characterized in that: The adjusting mechanism (9) further comprises a mounting plate (91), a spring (92), a guide slide column (93), a push plate (94), a push rod (95) and a trapezoidal block (96). The mounting plate (91) is arranged at the lower end of the vertical rod (98). The spring (92) is arranged between the upper end of the mounting plate (91) and the top wall of the base (1). The spring (92) is sleeved on the outside of the lower side of the vertical rod (98). The guide slide column (93) is arranged in a slide groove opened on the left side of the bottom wall of the base (1). The middle part of the outer arc surface of the guide slide column (93) is slidably connected with a push plate (94). The push plate (94) is slidably connected with the inner wall of the slide groove. The left end of the push plate (94) is provided with a push rod (95). The trapezoidal block (96) is arranged at the lower end of the mounting plate (91). The left end of the push plate (94) contacts the inclined surface arranged at the right end of the trapezoidal block (96).

4. The waterproof socks TPU film spraying equipment according to claim 3, characterized in that: The adjustment mechanism (9) further comprises a return spring (97), wherein the return spring (97) is arranged between the left end of the push plate (94) and the left wall of the slide groove, and the return spring (97) is sleeved on the outside of the left side of the guide slide column (93).

5. The waterproof socks TPU film spraying equipment according to claim 3, characterized in that: It also includes a mounting rod (13) and a cam (14), wherein the mounting rod (13) is rotatably connected to the front side of the bottom wall of the base (1) through a bearing, and the cam (14) is arranged on the lower side of the outer arc surface of the mounting rod (13), and the outer arc surface of the cam (14) contacts the right end of the push plate (94).

6. The waterproof socks TPU film spraying equipment according to claim 5, characterized in that: The invention also comprises an adjusting rod (15), a half gear (16), a fixing rod (17), a gear (18) and a pulley (19), wherein the adjusting rod (15) is rotatably connected to the rear side of the bottom wall of the base (1) through a bearing, the half gear (16) is arranged on the upper side of the outer arc surface of the adjusting rod (15), the fixing rod (17) is arranged on the lower end of the mounting seat (10), the gear (18) is arranged in the middle part of the outer arc surface of the fixing rod (17), the half gear (16) and the gear (18) are mounted in cooperation, and the pulley (19) is respectively arranged on the lower side of the outer arc surface of the adjusting rod (15) and the upper side of the outer arc surface of the mounting rod (13).

7. The waterproof socks TPU film spraying equipment according to claim 6, characterized in that: It also includes a motor (7) and a double-layer pulley (8), wherein the motor (7) is arranged at the lower end of the base (1), the double-layer pulley (8) is arranged at the upper end of the output shaft of the motor (7), the pulley (19) is connected to the double-layer pulley (8) through a belt, and the input end of the motor (7) is electrically connected to the output end of the control switch (3).