Bent pipe forming device for PVDF (Polyvinylidene Fluoride) pipe

The design of the electric telescopic rod and rotating plate combined with the arc-shaped clamping plate solves the problems of inconvenient clamping and poor insulation effect of the existing PVDF tube bending and forming device, realizes automatic adjustment of clamping and insulation, and improves the operating efficiency and practicality of the PVDF tube bending and forming device.

CN223326931UActive Publication Date: 2025-09-12JIANGSU TIAN DI REN NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202422506371.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-09-12
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

The existing PVDF pipe bending and forming device cannot automatically adjust according to the pipe size when clamping the pipe, and the preheating and insulation effects are poor, which affects the work progress and practicality.

Method used

An electric telescopic rod and a rotating plate are used in conjunction with an arc-shaped clamping plate to clamp the pipe. The insulation box and heating plate are combined to achieve automatic adjustment of clamping and insulation. The motor drives the rotating plate and the slider slot to achieve stable clamping of the pipe, and the insulation plate is used to maintain a specific temperature.

Benefits of technology

It realizes automatic clamping according to the size of the pipe, improves the working efficiency, and keeps the pipe at a specific temperature through the insulation structure, simplifies the operation process and improves the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of PVDF (polyvinylidene fluoride) pipe equipment, and provides a bent pipe forming device for a PVDF pipe, which comprises a platform and a heat preservation box body, and the electric telescopic rod is arranged at the edge of the top of the platform, the output end of the electric telescopic rod is connected with a fixing plate, the electric telescopic rod is started through a controller, and a pushing rod of the electric telescopic rod starts to push the fixing plate to move forwards as a whole. According to the device, one end of a pipe is placed between the multiple arc-shaped clamping plates, then a power source of a motor is turned on, the motor is started, the output end of the motor drives a rotating plate to rotate forwards, and along with continuous forward rotation of the rotating plate, sliding blocks located in the multiple hollow plates start to gradually slide towards the center of the rotating plate; and therefore, the pipeline can be better clamped, clamping can be carried out according to the size of the pipeline needing to be machined, manual adjustment is not needed, operation is very simple and convenient, and the overall operation progress of the bent pipe forming device is accelerated.
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Description

Technical Field

[0001] The present application relates to the field of PVDF pipe equipment, and in particular to a pipe bending and forming device for PVDF pipes. Background Art

[0002] PVDF tubing, commonly referred to as polyvinylidene fluoride tubing, is a high-performance plastic material with excellent chemical resistance, heat resistance, mechanical strength, and aging resistance. PVDF tubing is commonly used in applications requiring corrosion resistance, high-temperature resistance, and exposure to complex chemical environments, such as chemical piping systems, the semiconductor industry, the pharmaceutical industry, and the food and beverage industry.

[0003] In the prior art, China Publication No. CN209365355U discloses a bending forming device for PVDF pipes, which includes a workbench, and the workbench includes a transmission mechanism, a preheating mechanism and a bending mechanism. The transmission mechanism, the preheating mechanism and the bending mechanism are installed on the surface of the workbench, and the transmission mechanism, the preheating mechanism and the bending mechanism are arranged in sequence from left to right; the device can stably transport the PVDF pipe through the transmission mechanism, uniformly heat the pipe through the preheating mechanism, and bend the PVDF pipe at multiple angles through the bending mechanism, thereby improving applicability.

[0004] Although the above scheme has the above advantages, the disadvantage of the above scheme is that, when in use, the push pipe assembly in the traditional pipe bending forming device cannot better clamp the pipe, cannot be clamped according to the size of the required processed pipe, and requires manual adjustment, which is very troublesome and reduces the overall operation progress of the pipe bending forming device. In addition, when preheating the PVDF pipe, the pipe needs to be kept at a specific temperature, which cannot be better insulated, and it is not convenient to disassemble the insulation structure, which reduces the practicality of the pipe bending forming device. Utility Model Content

[0005] The present application provides a tube bending and forming device for PVDF tubes, which can better clamp the tubes and can be clamped according to the size of the tubes to be processed without manual adjustment. It is very simple and improves the overall operation progress of the tube bending and forming device. It can also facilitate the maintenance of the tubes at a specific temperature when preheating the PVDF tubes, better insulate them, and facilitate the disassembly of the insulation structure, thereby improving the practicality of the tube bending and forming device.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a tube bending forming device for PVDF tubes, the device comprising:

[0007] Platform and insulation box;

[0008] An electric telescopic rod is provided at the top edge of the platform, and an output end of the electric telescopic rod is connected to a fixed plate. When the electric telescopic rod is activated by a controller, a push rod of the electric telescopic rod starts to push the fixed plate forward as a whole;

[0009] Two support rods are connected to one side of the outer surface of the fixing plate, and one end of the two support rods is connected to a disc, so that the support rods are used to support the disc;

[0010] A rotating plate is provided on one side of the disc, and a plurality of sliding grooves are provided on one side of the outer surface of the rotating plate, and the sliding grooves are used to facilitate the movement of the slider;

[0011] A plurality of hollow plates are arranged on one side of the disc; and sliders are movably embedded on both sides of the inner walls of the plurality of hollow plates, and the sliders gradually slide toward the center of the rotating plate;

[0012] A plurality of arc-shaped clamping plates are respectively arranged on one side of the plurality of sliding blocks, and the plurality of arc-shaped clamping plates gradually and firmly clamp one end of the pipe.

[0013] As a further improvement scheme of the present application: the bottoms of the multiple sliders are movably embedded in the inner walls of the multiple slide grooves, and a motor is installed on one side of the outer surface of the fixed plate. When the multiple sliders slide, the multiple sliders begin to move along the slide grooves respectively.

[0014] As a further improvement of the present application: the output end of the motor is connected to the other side of the outer surface of the rotating plate, and by starting the motor, the output end of the motor drives the rotating plate to rotate forward.

[0015] As a further improvement of the present application: a turntable is movably connected to the top of the platform near the center, and a heating plate is connected to the top of the platform near the edge. The heating plate and the fan are turned on to heat and soften the PVDF tube.

[0016] As a further improvement of the present application: two fixing columns are connected to the top of the turntable near the center, and two fans are provided on one side of the outer surface of the heating plate to facilitate the uniform blowing of hot air.

[0017] As a further improvement to the present application: support legs are connected to the four corners of the bottom of the platform, and the support legs facilitate the stable support of the platform.

[0018] As a further improvement scheme of this application: insulation board 1 is installed on one side of the inner wall of the insulation box body, and insulation board 2 is installed on one side of the inner wall of the insulation box body. The PVDF tube is insulated by insulation board 1 and insulation board 2 in the insulation box body.

[0019] As a further improvement scheme of the present application: a sealed door is connected to one side of the outer surface of the insulation box body through a hinge, a handle is connected to one side of the outer surface of the sealed door, and a plurality of connecting plates are connected to the outer surface of the insulation box body. Two threaded holes are provided on one side of the outer surface of each of the plurality of connecting plates. The PVDF tube can be taken in and out by opening the sealed door, and temperature leakage can be prevented.

[0020] Compared with the prior art, the advantages and positive effects of this application are:

[0021] 1. The present application places one end of the pipe between a plurality of arc-shaped clamping plates, then turns on the power of the motor, starts the motor, and the output end of the motor drives the rotating plate to rotate forward. As the rotating plate continues to rotate forward, the sliders located in the plurality of hollow plates begin to gradually slide toward the center of the rotating plate. When the plurality of sliders slide, the plurality of sliders begin to move along the slide grooves respectively. Through the continuous forward rotation of the rotating plate, the plurality of arc-shaped clamping plates gradually clamp one end of the pipe firmly. At this time, the plurality of hollow plates limit the sliders respectively to prevent the sliders from deviating from the motion trajectory, thereby achieving better clamping of the pipe. The pipe can be clamped according to the size of the pipe to be processed without manual adjustment, which is very simple and improves the overall operation progress of the pipe bending forming device.

[0022] 2. In the present application, when the pipe is clamped, the staff turns on the external power supply of the electric telescopic rod and uses the controller to start the electric telescopic rod. The pushing rod of the electric telescopic rod starts to push the fixed plate forward as a whole. At the same time, the staff turns on the heating plate and the fan to heat and soften the PVDF tube. After the heating and softening is completed, the staff uses the controller to make the electric telescopic rod continue to push the PVDF tube into between the two fixed columns, and at the same time starts the turntable to rotate continuously, thereby completing the bending operation of the PVDF tube. In order to facilitate temperature control and insulation of the PVDF tube, the staff can install the insulation box body as a whole on the top edge of the platform through external connecting parts such as bolts, and use the insulation board 1 and insulation board 2 in the insulation box body to insulate the PVDF tube so that it maintains a specific temperature during bending. The staff can take and place the PVDF tube by opening the sealed door and prevent the temperature from leaking out, thereby achieving the purpose of keeping the pipeline at a specific temperature during the pre-heating treatment of the PVDF tube, better insulating it, and facilitating the disassembly of the insulation structure, thereby improving the practicality of the tube bending forming device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal three-dimensional structure of a tube bending and forming device for PVDF tubes proposed in this embodiment.

[0024] Figure 2 This is a schematic side view of the stereoscopic structure of a tube bending and forming device for PVDF tubes proposed in this embodiment.

[0025] Figure 3 This is a schematic top view of the three-dimensional structure of a tube bending and forming device for PVDF tubes proposed in this embodiment.

[0026] Figure 4 For this embodiment Figure 3 Enlarged view of point A in the middle.

[0027] Legend: 1. Platform; 101. Turntable; 102. Fixed column; 103. Heating plate; 104. Fan; 105. Electric telescopic rod; 106. Fixed plate; 107. Motor; 108. Support rod; 109. Disc; 110. Slide; 111. Hollow plate; 112. Slider; 113. Arc-shaped splint; 114. Support leg; 115. Rotating plate; 2. Insulation box body; 201. Insulation plate 1; 202. Insulation plate 2; 203. Connecting plate; 204. Threaded hole; 205. Sealing door; 206. Handle. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways than those described herein. Therefore, the present application is not limited to the specific embodiments disclosed in the following specification.

[0030] like Figure 1-4 As shown, the present application provides a tube bending forming device for PVDF tubes, the device comprising:

[0031] Platform 1 and insulation box 2;

[0032] The electric telescopic rod 105 is arranged at the top edge of the platform 1, and the output end of the electric telescopic rod 105 is connected to the fixed plate 106. When the electric telescopic rod 105 is started by the controller, the push rod of the electric telescopic rod 105 starts to push the fixed plate 106 forward as a whole;

[0033] Two support rods 108 are connected to one side of the outer surface of the fixing plate 106, and one end of the two support rods 108 is connected to a disc 109, and the support rods 108 are used to support the disc 109;

[0034] The rotating plate 115 is disposed on one side of the disc 109, and a plurality of slide grooves 110 are formed on one side of the outer surface of the rotating plate 115, and the slide grooves 110 are used to facilitate the movement of the slider 112;

[0035] A plurality of hollow plates 111 are provided on one side of the disc 109; and sliders 112 are movably embedded on both sides of the inner walls of the plurality of hollow plates 111, and the sliders 112 gradually slide toward the center of the rotating plate 115;

[0036] A plurality of arc-shaped clamping plates 113 are respectively provided on one side of the plurality of sliders 112 , and the plurality of arc-shaped clamping plates 113 gradually and firmly clamp one end of the pipe.

[0037] like Figure 1-4 As shown, the bottoms of the multiple sliders 112 are movably embedded in the inner walls of the multiple slide grooves 110, and a motor 107 is installed on one side of the outer surface of the fixed plate 106. When the multiple sliders 112 slide, the multiple sliders 112 begin to move along the slide grooves 110 respectively.

[0038] like Figure 1-4 As shown, the output end of the motor 107 is connected to the other side of the outer surface of the rotating plate 115. By starting the motor 107, the output end of the motor 107 drives the rotating plate 115 to rotate forward.

[0039] like Figure 1-4 As shown, a turntable 101 is movably connected to the top of the platform 1 near the center, and a heating plate 103 is connected to the top of the platform 1 near the edge. The heating plate 103 and the fan 104 are turned on to heat and soften the PVDF tube.

[0040] like Figure 1-4 As shown, two fixing columns 102 are connected to the top of the turntable 101 near the center, and two fans 104 are set on one side of the outer surface of the heating plate 103 to facilitate uniform blowing of hot air.

[0041] like Figure 1-4 The four corners of the bottom of the platform 1 are connected with support legs 114 , which facilitate providing a stable support force for the platform 1 .

[0042] like Figure 1-4 As shown, an insulation board 1 201 is installed on one side of the inner wall of the insulation box body 2, and an insulation board 2 202 is installed on one side of the inner wall of the insulation box body 2. The insulation board 1 201 and the insulation board 2 202 in the insulation box body 2 are used to insulate the PVDF tube.

[0043] like Figure 1-4 As shown, one side of the outer surface of the insulation box body 2 is connected to a sealed door 205 through a hinge, and one side of the outer surface of the sealed door 205 is connected to a handle 206. The outer surface of the insulation box body 2 is connected to multiple connecting plates 203, and one side of the outer surface of the multiple connecting plates 203 is provided with two threaded holes 204. The PVDF tube is taken in and out by opening the sealed door 205, and the temperature is prevented from leaking out.

[0044] When in use, first place one end of the pipe between the multiple arc-shaped clamping plates 113, then turn on the power of the motor 107, start the motor 107, and the output end of the motor 107 drives the rotating plate 115 to rotate forward. As the rotating plate 115 continues to rotate forward, the sliders 112 located in the multiple hollow plates 111 begin to gradually slide toward the center of the rotating plate 115. When the multiple sliders 112 slide, the multiple sliders 112 begin to move along the slide groove 110 respectively. Through the continuous forward rotation of the rotating plate 115, the multiple arc-shaped clamping plates 113 gradually clamp one end of the pipe firmly. At this time, the multiple hollow plates 111 limit the sliders 112 respectively to prevent the sliders 112 from deviating from the motion trajectory, thereby achieving better clamping of the pipe and can be clamped according to the size of the pipe to be processed. No manual adjustment is required, which is very simple and improves the overall operation progress of the pipe bending forming device.

[0045] When the pipe is clamped, the staff turns on the external power supply of the electric telescopic rod 105 and uses the controller to start the electric telescopic rod 105. The push rod of the electric telescopic rod 105 starts to push the fixed plate 106 forward as a whole. At the same time, the staff turns on the heating plate 103 and the fan 104 to heat and soften the PVDF pipe. After the heating and softening is completed, the staff uses the controller to make the electric telescopic rod 105 continue to push the PVDF pipe into between the two fixed columns 102, and at the same time starts the turntable 101 to rotate continuously, thereby completing the bending operation of the PVDF pipe.

[0046] In order to facilitate temperature control and insulation of PVDF pipes, the staff can install the insulation box body 2 as a whole on the top edge of the platform 1 through external connectors such as bolts, and use the insulation board 1 201 and the insulation board 2 202 in the insulation box body 2 to insulate the PVDF pipe so that it maintains a specific temperature during bending. The staff can open the sealing door 205 to take and place the PVDF pipe and prevent the temperature from leaking out, thereby achieving the goal of keeping the pipeline at a specific temperature during pre-heating treatment of the PVDF pipe, better insulating it, and facilitating the disassembly of the insulation structure, thereby improving the practicality of the pipe bending forming device.

[0047] The above are only preferred embodiments of the application and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A tube bending device for PVDF tubes, characterized in that: The device includes: Platform (1) and insulation box (2); An electric telescopic rod (105) is arranged at the top edge of the platform (1), and an output end of the electric telescopic rod (105) is connected to a fixing plate (106); Two support rods (108) are connected to one side of the outer surface of the fixing plate (106), and one end of the two support rods (108) is connected to a disc (109); A rotating plate (115) is arranged on one side of the disc (109), and a plurality of sliding grooves (110) are provided on one side of the outer surface of the rotating plate (115); A plurality of hollow plates (111) are arranged on one side of the disc (109); and sliders (112) are movably embedded on both sides of the inner walls of the plurality of hollow plates (111); A plurality of arc-shaped clamping plates (113) are respectively arranged on one side of the plurality of sliding blocks (112).

2. The bending device for PVDF pipes according to claim 1, characterized in that: The bottoms of the plurality of sliding blocks (112) are movably embedded in the inner walls of the plurality of sliding grooves (110), and a motor (107) is installed on one side of the outer surface of the fixing plate (106).

3. The bending device for PVDF pipes according to claim 2, characterized in that: The output end of the motor (107) is connected to the other side of the outer surface of the rotating plate (115).

4. The bending device for PVDF pipes according to claim 1, characterized in that: A turntable (101) is movably connected to the top of the platform (1) near the center, and a heating plate (103) is connected to the top of the platform (1) near the edge.

5. The device for bending PVDF pipes according to claim 4, characterized in that: Two fixing columns (102) are connected to the top of the rotating disk (101) near the center, and two fans (104) are provided on one side of the outer surface of the heating plate (103).

6. The bending device for PVDF pipes according to claim 1, characterized in that: Support legs (114) are connected to the four corners of the bottom of the platform (1).

7. The device for bending PVDF pipes according to claim 1, characterized in that: A first insulation board (201) is installed on one side of the inner wall of the insulation box body (2), and a second insulation board (202) is installed on one side of the inner wall of the insulation box body (2).

8. The bending device for PVDF pipes according to claim 1, characterized in that: One side of the outer surface of the heat-insulating box body (2) is connected to a sealed door (205) via a hinge, and one side of the outer surface of the sealed door (205) is connected to a handle (206). The outer surface of the heat-insulating box body (2) is connected to a plurality of connecting plates (203), and one side of the outer surface of each of the plurality of connecting plates (203) is provided with two threaded holes (204).

Citation Information

Patent Citations

  • Bent pipe forming device for PVDF pipe

    CN209365355U