Stretching device for PVDF pipe production and processing

Abstract

The utility model relates to the field of PVDF (Polyvinylidene Fluoride) pipe production and processing, and provides a stretching device for PVDF pipe production and processing, which comprises a bottom plate and a foundation plate, and the two vertical plates are arranged on the two sides of the edge of the top of the bottom plate, the tops of the vertical plates are connected with long racks, and movement is facilitated through the long racks. According to the device, one end of a PVDF pipe is arranged in a chuck, then the other end of the PVDF pipe is placed between two arc-shaped plates, a second motor is started, the output end of the second motor drives a double-thread lead screw to rotate forwards, the two arc-shaped plates are driven to move towards the middle of the bottom of a movable plate while the double-thread lead screw rotates forwards, and therefore the PVDF pipe is fixed; therefore, the stretching speed can be better controlled, the PVDF pipe does not need to be stretched again, the stretching device is very simple and convenient, the overall stretching efficiency of the PVDF pipe is improved, the PVDF pipe can be better clamped, the PVDF pipe is prevented from sliding off, clamping and fixing are not needed again, the stretching device is very simple and convenient, time and labor are saved, and the practicability of the stretching device for producing and processing the PVDF pipe is improved.

Description

Technical Field

[0001] This application relates to the field of PVDF pipe production and processing, and particularly relates to a stretching device for PVDF pipe production and processing. Background Art

[0002] For PVDF pipes, the molecular chains are closely arranged, with strong hydrogen bonds, inherently flame-resistant, a crystallinity of 65% - 78%, and a long-term service temperature of -40 to 150 °C. Its outstanding features are high mechanical strength, good radiation resistance, can be used outdoors for a long time without maintenance. It has good chemical stability and is not corroded by acids, alkalis, strong oxidants, and halogens at room temperature, and is widely used in petrochemical, electronic and electrical, steel plant pickling, and the transportation of acid and alkali solutions.

[0003] In the prior art, a stretching device for the production and processing of polyvinylidene fluoride pipes PVDF disclosed in a patent with Chinese publication number CN216860580U includes a fixed plate. A groove is opened at the top of the fixed plate. The left side of the bottom of the inner wall of the groove is fixedly connected with a transmission box. The bottom of the inner wall of the transmission box is fixedly connected with a motor. The output end of the motor is fixedly connected with a screw rod. The right side of the surface of the screw rod is threadedly connected with a screw block. The top of the screw block is fixedly connected with a support rod. By the combined use of the fixed plate, groove, transmission box, motor, screw rod, screw block, support rod, fixed rod, limit tube, operation tube, operation port, triangular block, pressing plate, connecting rod, connecting groove, placing port, clamping block, and clamping groove in the present utility model, the problem that the existing stretching device does not have the effect of being convenient for fixing, it is troublesome for the user to fix the polyvinylidene fluoride pipe PVDF, the stretching efficiency is reduced, and it is not convenient for the user to use is solved.

[0004] Although the above solution has the above advantages, the disadvantages of the above solution are that the traditional fixture cannot better control the speed during stretching, resulting in too large a pulling force during the stretching process, causing the PVDF pipe to break, and the PVDF pipe needs to be stretched again, which takes up a lot of time and affects the overall stretching efficiency of the PVDF pipe. Also, it cannot better hold the PVDF pipe, which will cause the PVDF pipe to slip and needs to be re-clamped and fixed, which is very troublesome, time-consuming and laborious, reducing the practicability of the stretching device for PVDF pipe production and processing, and it cannot quickly cool the stretched PVDF pipe, reducing the factory efficiency of the PVDF pipe. Summary of the Utility Model

[0005] A stretching device for the production and processing of PVDF pipes provided by the present application can better control the speed during stretching, avoid excessive tensile force during the stretching process from causing the PVDF pipe to break, and there is no need to re-stretch the PVDF pipe, which is very simple. It improves the overall stretching efficiency of the PVDF pipe, can better clamp the PVDF pipe to prevent it from slipping, and there is no need to re-clamp and fix it, which is very simple, time-saving and labor-saving, improves the practicality of the stretching device for the production and processing of PVDF pipes, and quickly cools the stretched PVDF pipe, improving the factory efficiency of the PVDF pipe.

[0006] In order to achieve the above object, the present application adopts the following technical solutions: A stretching device for the production and processing of PVDF pipes, the device includes:

[0007] A bottom plate and a base plate;

[0008] Two vertical plates are arranged on both sides of the top edge of the bottom plate, and long racks are connected to the tops of the vertical plates, which is convenient for moving by using the long racks;

[0009] A double-shaft motor is installed at the center of the top of the base plate, and rotating columns are connected to both output ends of the double-shaft motor, and the circular gears are driven by the rotating columns;

[0010] Two circular gears are respectively connected to one ends of the two rotating columns, and the outer surfaces of the circular gears are meshed with the outer surfaces of the long racks;

[0011] A connecting rod is connected to the center of the bottom of the base plate;

[0012] A moving plate is connected to the bottom end of the connecting rod, and both sides of the inner wall of the moving plate are movably connected with a double-threaded screw rod.

[0013] As a further improvement of the present application: A motor two is installed on one side of the outer surface of the moving plate, and the output end of the motor two is connected to one end of the double-threaded screw rod. The output end of the motor two drives the double-threaded screw rod to rotate forward, and while the double-threaded screw rod rotates forward, it drives the two arc-shaped plates to move towards the middle of the bottom of the moving plate.

[0014] As a further improvement of the present application: Cross bars are connected to both sides of the inner wall of the moving plate, two arc-shaped plates are threadedly connected to the outer surface of the double-threaded screw rod, and a chuck is installed at the top edge of the bottom plate. One end of the PVDF pipe is placed in the chuck, and then the other end of the PVDF pipe is placed between the two arc-shaped plates.

[0015] As a further improvement of the present application: Both inner parts of the two arc-shaped plates are movably sleeved on the outer surface of the cross bar, and while the double-threaded screw rod rotates forward, it drives the two arc-shaped plates to move towards the middle of the bottom of the moving plate.

[0016] As a further improvement of the present application: two limiting plates are connected to the tops of the two vertical plates, a rear plate is connected to the top edge of the bottom plate, and support legs are connected to the four corners of the bottom of the bottom plate to increase the stability of the device by means of the support legs.

[0017] As a further improvement of the present application: a round rod is connected to one side of the outer surface of the rear plate, a square plate is connected to one end of the round rod, and the outer surface of the round rod is movably sleeved inside the base plate. The round rod limits the movement of the whole moving plate to prevent the PVDF pipe from deviating from the track during movement.

[0018] As a further improvement of the present application: supporting plates are connected to the outer sides of the outer surfaces of the two vertical plates, and a third motor is installed at the center of the top of the supporting plate. The output end of the third motor starts to drive the main shaft to rotate forward.

[0019] As a further improvement of the present application: the output end of the third motor is connected to the main shaft, and a fan is connected to one end of the main shaft. As the main shaft continues to rotate forward, the fan starts to rotate at a high speed along with the main shaft and generates wind to perform accelerated cooling treatment on the PVDF pipe that has been stretched.

[0020] Compared with the prior art, the advantages and positive effects of the present application are as follows.

[0021] 1. In this application, first, one end of the PVDF tube is set in the chuck, and then the other end of the PVDF tube is placed between two arc-shaped plates. Then, the external power supply of the second motor is turned on to start the second motor. The output end of the second motor drives the double-threaded screw rod to rotate forward. While the double-threaded screw rod rotates forward, it drives the two arc-shaped plates to move towards the middle of the bottom of the moving plate. As the two arc-shaped plates continue to move, the PVDF tube is gradually and firmly clamped. At this time, the cross bar limits the two arc-shaped plates to prevent them from idling. Subsequently, the staff uses a heating device to soften the PVDF tube to the required degree. Then, the external power supply of the double-shaft motor located at the top of the base plate is turned on, and the double-shaft motor is started using a controller. The output ends on both sides of the double-shaft motor start to drive the rotating columns to rotate forward respectively. Through the continuous forward rotation of the rotating columns on both sides, the circular gears at one end of the rotating columns start to rotate. Through the continuous forward rotation of the two circular gears, the entire moving plate starts to gradually move forward. At this time, the round rod limits the entire moving plate to prevent the PVDF tube from deviating from the track during movement. The staff uses the controller to control the speed of the double-shaft motor to reach the required stretching speed, so as to better control the speed during stretching, avoid excessive tension during the stretching process that causes the PVDF tube to break, and there is no need to re-stretch the PVDF tube, which is very simple, improves the overall stretching efficiency of the PVDF tube, and can better clamp the PVDF tube to prevent it from slipping, eliminating the need to re-clamp and fix it, which is very simple, time-saving and labor-saving, and improves the practicality of the stretching device for the production and processing of PVDF tubes.

[0022] 2. In this application, after stretching is completed, the staff respectively turn on the external power supplies of the two motors three and start the motors three. The output ends of the motors three start to drive the main shaft to rotate forward. As the main shaft continues to rotate forward, the fan starts to rotate at high speed along with the main shaft and generates wind to perform accelerated cooling treatment on the PVDF tube that has been stretched, so as to achieve rapid cooling treatment of the stretched PVDF tube and improve the factory efficiency of the PVDF tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a side perspective structural schematic diagram of a stretching device for the production and processing of PVDF tubes proposed in this embodiment.

[0024] Figure 2 It is a bottom perspective structural schematic diagram of a stretching device for the production and processing of PVDF tubes proposed in this embodiment.

[0025] Figure 3 It is an internal perspective structural schematic diagram of a stretching device for the production and processing of PVDF tubes proposed in this embodiment.

[0026] Figure 4 For this embodiment Figure 4 The enlarged view at A in the figure.

[0027] Legend: 1. Base plate; 101. Vertical plate; 102. Limiting plate; 103. Long rack; 104. Biaxial motor; 105. Round rod; 106. Round gear; 107. Base plate; 108. Square plate; 109. Support leg; 110. Moving plate; 111. Double-threaded lead screw; 112. Cross bar; 113. Arc plate; 114. Motor 2; 115. Chuck; 116. Rotating column; 117. Connecting rod; 118. Rear plate; 2. Support plate; 201. Motor 3; 202. Main shaft; 203. Fan. Detailed implementation mode

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

[0029] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the present application is not limited by the specific embodiments disclosed in the following specification.

[0030] Embodiment 1, as Figures 1-4 shown, the present application provides a stretching device for the production and processing of PVDF pipes, and the device includes:

[0031] Base plate 1 and base plate 107;

[0032] Two vertical plates 101 are arranged on both sides of the top edge of the base plate 1, and long racks 103 are connected to the tops of the vertical plates 101, which is convenient for moving by using the long racks 103;

[0033] The biaxial motor 104 is installed at the center of the top of the base plate 107, and rotating columns 116 are connected to both output ends of the biaxial motor 104, and the round gears 106 are driven by the rotating columns 116;

[0034] Two round gears 106 are respectively connected to one ends of the two rotating columns 116, and the outer surfaces of the round gears 106 are meshed with the outer surfaces of the long racks 103;

[0035] The connecting rod 117 is connected to the center of the bottom of the base plate 107;

[0036] The moving plate 110 is connected to the bottom end of the connecting rod 117, and both sides of the inner wall of the moving plate 110 are movably connected with a double-threaded lead screw of 111.

[0037] As Figures 1-4As shown in the figure, a second motor 114 is installed on one side of the outer surface of the moving plate 110. The output end of the second motor 114 is connected to one end of the double-threaded lead screw 111. By driving the output end of the second motor 114, the double-threaded lead screw 111 rotates forward, and while the double-threaded lead screw 111 rotates forward, it drives the two arc-shaped plates 113 to move towards the middle of the bottom of the moving plate 110.

[0038] As Figures 1-4 shown in the figure, cross bars 112 are connected to both sides of the inner wall of the moving plate 110. Two arc-shaped plates 113 are threadedly connected to the outer surface of the double-threaded lead screw 111. A chuck 115 is installed at the top edge of the bottom plate 1. One end of the PVDF pipe is placed in the chuck 115, and then the other end of the PVDF pipe is placed between the two arc-shaped plates 113.

[0039] As Figures 1-4 shown in the figure, both interiors of the two arc-shaped plates 113 are movably sleeved on the outer surface of the cross bar 112. While the double-threaded lead screw 111 rotates forward, it drives the two arc-shaped plates 113 to move towards the middle of the bottom of the moving plate 110.

[0040] As Figures 1-4 shown in the figure, two limiting plates 102 are connected to the top of both vertical plates 101. A rear plate 118 is connected to the top edge of the bottom plate 1. Support legs 109 are connected to the four corners of the bottom of the bottom plate 1, and the support legs 109 are used to increase the stability of the device.

[0041] As Figures 1-4 shown in the figure, a round rod 105 is connected to one side of the outer surface of the rear plate 118. One end of the round rod 105 is connected to a square plate 108. The outer surface of the round rod 105 is movably sleeved inside the base plate 107. The round rod 105 limits the whole moving plate 110 to prevent the PVDF pipe from deviating from the track during movement.

[0042] As Figures 1-4 shown in the figure, trays 2 are connected to the outer sides of both outer surfaces of the two vertical plates 101. A third motor 201 is installed at the center of the top of the tray 2. By starting the output end of the third motor 201, the main shaft 202 is driven to rotate forward.

[0043] As Figures 1-4 shown in the figure, the output end of the third motor 201 is connected to the main shaft 202. One end of the main shaft 202 is connected to a fan 203. As the main shaft 202 continues to rotate forward, the fan 203 begins to rotate at high speed along with the main shaft 202 and generates wind to perform accelerated cooling treatment on the PVDF pipe that has been stretched.

[0044] In use, first, one end of the PVDF tube is set in the chuck 115, and then the other end of the PVDF tube is placed between the two arc-shaped plates 113. Then, the external power supply of the second motor 114 is turned on to start the second motor 114. The output end of the second motor 114 drives the double-threaded screw rod 111 to rotate forward. While the double-threaded screw rod 111 rotates forward, it drives the two arc-shaped plates 113 to move towards the middle of the bottom of the moving plate 110. As the two arc-shaped plates 113 continue to move, the PVDF tube is gradually and firmly clamped. At this time, the cross bar 112 limits the two arc-shaped plates 113 to prevent the two arc-shaped plates 113 from idling.

[0045] Subsequently, the staff uses a heating device to soften the PVDF tube to the required degree, and then turns on the external power supply of the double-shaft motor 104 located on the top of the base plate 107 and starts the double-shaft motor 104 using the controller. The output ends on both sides of the double-shaft motor 104 start to drive the rotating columns 116 to rotate forward respectively. Through the continuous forward rotation of the rotating columns 116 on both sides, the circular gears 106 at one end of the rotating columns 116 start to rotate. Through the continuous forward rotation of the two circular gears 106, the entire moving plate 110 starts to gradually move forward. At this time, the round rod 105 limits the entire moving plate 110 to prevent the PVDF tube from deviating from the track during movement. The staff uses the controller to control the speed of the double-shaft motor 104 to make it reach the required stretching speed, so as to better control the speed during stretching, avoid excessive tensile force during the stretching process from causing the PVDF tube to break, and there is no need to re-stretch the PVDF tube, which is very simple, improves the overall stretching efficiency of the PVDF tube, and can better clamp the PVDF tube to prevent the PVDF tube from slipping, without the need to re-clamp and fix it, which is very simple, time-saving and labor-saving, and improves the practicability of the stretching device for the production and processing of PVDF tubes.

[0046] After stretching, the staff turns on the external power supplies of the two motors three 201 on both sides respectively to start the motors three 201. The output ends of the motors three 201 start to drive the main shaft 202 to rotate forward. As the main shaft 202 continues to rotate forward, the fan 203 starts to rotate at a high speed along with the main shaft 202 and generates wind to perform accelerated cooling treatment on the PVDF tube that has been stretched, so as to achieve rapid cooling treatment of the stretched PVDF tube and improve the ex-factory efficiency of the PVDF tube.

[0047] The above is only the preferred embodiment of the application, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A stretching device for the production and processing of PVDF pipes, characterized in that, The device includes: a bottom plate (1) and a base plate (107); two vertical plates (101), arranged on both sides of the top edge of the bottom plate (1), and long racks (103) are connected to the tops of the vertical plates (101); a biaxial motor (104), installed at the center of the top of the base plate (107), and rotating columns (116) are connected to both output ends of the biaxial motor (104); two circular gears (106), respectively connected to one ends of the two rotating columns (116), and the outer surfaces of the circular gears (106) are meshed with the outer surfaces of the long racks (103); a connecting rod (117), connected to the center of the bottom of the base plate (107); a moving plate (110), connected to the bottom end of the connecting rod (117), and a double-threaded lead screw (111) is movably connected to both sides of the inner wall of the moving plate (110).

2. The stretching device for the production and processing of PVDF tubes according to claim 1, characterized in that: One side of the outer surface of the moving plate (110) is provided with a second motor (114), and the output end of the second motor (114) is connected to one end of the double-threaded lead screw (111).

3. A stretching device for the production and processing of PVDF tubes according to claim 1, characterized in that: Both sides of the inner wall of the moving plate (110) are connected with cross bars (112), two arc-shaped plates (113) are threadedly connected to the outer surface of the double-threaded lead screw (111), and a chuck (115) is installed at the top edge of the bottom plate (1).

4. A stretching device for the production and processing of PVDF tubes according to claim 3, characterized in that: Both of the two arc-shaped plates (113) are movably sleeved on the outer surface of the cross bar (112).

5. A stretching device for the production and processing of PVDF tubes according to claim 1, characterized in that: Two limiting plates (102) are connected to the tops of the two vertical plates (101), a rear plate (118) is connected to the top edge of the bottom plate (1), and support legs (109) are connected to the four corners of the bottom of the bottom plate (1).

6. The stretching device for the production and processing of PVDF pipes according to claim 5, characterized in that: One side of the outer surface of the rear plate (118) is connected with a round rod (105), one end of the round rod (105) is connected with a square plate (108), and the outer surface of the round rod (105) is movably sleeved inside the base plate (107).

7. A stretching device for the production and processing of PVDF tubes according to claim 1, characterized in that: Support plates (2) are connected to the outer sides of both outer surfaces of the two vertical plates (101), and a third motor (201) is installed at the center of the top of the support plate (2).

8. A stretching device for the production and processing of PVDF tubes according to claim 7, characterized in that: The output end of the third motor (201) is connected with a main shaft (202), and a fan (203) is connected to one end of the main shaft (202).

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