Expanded polytetrafluoroethylene tube continuous extrusion equipment
By designing the support and limiting device of the expanded polytetrafluoroethylene pipe continuous extrusion equipment, the inclination and bending problems caused by gravity during the removal process are solved, and the practicality of the equipment and the forming quality of the pipe are improved.
Patent Information
- Application Number
- CN202421343759.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-13
AI Technical Summary
When the expanded polytetrafluoroethylene pipe is removed from the outlet of the extrusion equipment, it is prone to inclination and deformation due to its own gravity, which may even cause the material to break, affecting normal sales.
An expanded polytetrafluoroethylene tube continuous extrusion device is designed, including a screw feeding tube, a feed hopper, a support device and a limiting device. The support device supports the expanded polytetrafluoroethylene tube through a U-shaped plate and a guide rod, and the limiting device limits both sides of the tube through a screw and a limiting member to prevent offset and bending.
Effectively prevent the inclination and bending caused by gravity during the removal of the expanded polytetrafluoroethylene pipe, which improves the practicality of the extrusion equipment and ensures the normal forming and sales of the pipe.
Smart Images
Figure CN222554194U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expanded polytetrafluoroethylene tube production, in particular to expanded polytetrafluoroethylene tube continuous extrusion equipment. Background Art
[0002] Tetrafluoroethylene has excellent chemical stability, a wide operating temperature range, and reliable and excellent corrosion resistance. It is widely used in machinery, chemical industry, aviation, medical care, and electrical insulation. When processing expanded polytetrafluoroethylene pipes, extrusion equipment is required to extrude tetrafluoroethylene into a tubular shape.
[0003] After the expanded polytetrafluoroethylene tube of the prior art is formed, the expanded polytetrafluoroethylene tube will be moved out from the outlet of the extrusion equipment. When the expanded polytetrafluoroethylene tube is moved out for a long time, the expanded polytetrafluoroethylene tube is prone to tilt due to the action of its own gravity. The tilting of the expanded polytetrafluoroethylene tube will cause its own deformation and even material breakage, thereby affecting its normal sales. Utility Model Content
[0004] The utility model provides an expanded polytetrafluoroethylene tube continuous extrusion device to solve the shortcomings in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an expanded polytetrafluoroethylene tube continuous extrusion device, comprising a workbench, a spiral feeding tube is fixedly connected to the upper surface of the workbench, a feed hopper is fixedly connected to the top of the spiral feeding tube, a discharge port is opened at one end of the spiral feeding tube, a supporting device for supporting the expanded polytetrafluoroethylene tube is provided at the corresponding discharge port of the workbench, the supporting device comprises a U-shaped plate, two arms of the U-shaped plate are provided with limiting devices for preventing the expanded polytetrafluoroethylene tube from deviating to both sides, and a cleaning device for rotating and scraping the inner wall of the feed hopper is provided inside the feed hopper.
[0006] The effects achieved by the above components are: when the expanded polytetrafluoroethylene tube needs to be processed, the expanded polytetrafluoroethylene tube processing raw materials are placed in the feed hopper, the cleaning device cleans the inner wall of the feed hopper to prevent the raw materials from sticking to the inner wall of the feed hopper, and the raw materials are fed into the spiral feeding pipe through the feed hopper. The spiral feeding pipe heats and extrude the raw materials to move the expanded polytetrafluoroethylene tube out of the discharge port. At this time, the supporting device supports the expanded polytetrafluoroethylene tube, and the limiting device limits the two sides of the expanded polytetrafluoroethylene tube to prevent the expanded polytetrafluoroethylene tube from bending, thereby improving the practicability of the extrusion equipment.
[0007] Preferably, the supporting device also includes a pad, which is fixedly connected to one end of the workbench, and a guide tube is fixedly connected to the upper surface of the pad, and a guide rod is slidably connected to one end of the guide tube, and one end of the guide rod is fixedly connected to the U-shaped plate, and bolts are threadedly inserted into the arc surface of the guide tube, and a plurality of threaded holes are opened on the guide rod corresponding to the bolts, and the size of the bolts is matched with the size of the threaded holes.
[0008] The effects achieved by the above components are: when the expanded polytetrafluoroethylene tube needs to be supported, the staff moves the U-shaped plate, and the guide rod moves in the guide tube. When the U-shaped plate moves to a suitable height, the staff turns the bolt, and the bolt passes through the guide tube and is inserted into the threaded hole of the guide rod, thereby achieving the effect of fixing the U-shaped plate. The U-shaped plate arranged by the supporting device achieves the effect of supporting the expanded polytetrafluoroethylene tube, thereby preventing the expanded polytetrafluoroethylene tube from bending under the action of its own gravity.
[0009] Preferably, a telescopic rod is fixedly connected to the upper surface of the pad, and the other end of the telescopic rod is fixedly connected to the U-shaped plate.
[0010] The effects achieved by the above components are: by setting the telescopic rod, the moving direction of the U-shaped plate is restricted, the rotation of the U-shaped plate is avoided, and the stability of the movement of the U-shaped plate is improved.
[0011] Preferably, one end of the bolt is fixedly connected to a pull rope, and one end of the pull rope is fixedly connected to the guide tube.
[0012] The effect achieved by the above components is: by setting the pull rope, the maximum displacement of the bolt is limited, thereby preventing the bolt from falling when not in use.
[0013] Preferably, the U-shaped plate is internally rotatably connected to a plurality of rotating rods, and the plurality of rotating rods are linearly distributed.
[0014] The effect achieved by the above components is: by arranging the rotating rod and the expanded polytetrafluoroethylene tube to rotate, the friction between the expanded polytetrafluoroethylene tube and the U-shaped plate is reduced, and the movement of the expanded polytetrafluoroethylene tube is facilitated.
[0015] Preferably, the limiting device includes two screws, which are respectively threadedly connected to the two arms of the U-shaped plate, and the ends of the two screws close to each other are rotatably connected to the limiting parts. The two arms of the U-shaped plate are slidably provided with limiting rods, and one end of the limiting rod is fixedly connected to the limiting part.
[0016] The effect achieved by the above components is: before the U-shaped plate supports the expanded polytetrafluoroethylene tube, the staff first rotates the two screws, and the two limiters move closer to or away from each other, so that the two limiters are respectively fitted with the two sides of the expanded polytetrafluoroethylene tube. The limiting device achieves the effect of limiting the two sides of the expanded polytetrafluoroethylene tube, preventing the expanded polytetrafluoroethylene tube from deviating to both sides, and further preventing the expanded polytetrafluoroethylene tube from bending.
[0017] Preferably, one end of the screw is fixedly connected to a handle, and the surface of the handle is provided with anti-slip patterns.
[0018] The effect achieved by the above components is: by providing the handle, it is convenient for the staff to rotate the screw, which brings convenience to the staff.
[0019] Preferably, the cleaning device includes a U-shaped frame, two arms of the U-shaped frame are fixedly connected to the upper surface of the feed hopper, a servo motor is fixedly connected to the upper surface of the U-shaped frame, an output end of the servo motor is fixedly connected to a rotating shaft, and two symmetrical cleaning plates are fixedly connected to the arc surface of the rotating shaft, and the cleaning plates are in contact with the inner wall of the feed hopper.
[0020] The effect achieved by the above components is: after placing the raw materials into the feed hopper, the staff turns on the servo motor on the U-shaped frame, and the servo motor rotates the rotating shaft and the cleaning plate, and the cleaning plate cleans the inner wall of the feed hopper. The cleaning device achieves the effect of cleaning the inner wall of the feed hopper, thereby preventing the raw materials from sticking to the inner wall of the feed hopper, thereby causing waste of resources.
[0021] In summary, the beneficial effects of the utility model are:
[0022] When the expanded polytetrafluoroethylene tube needs to be processed, the expanded polytetrafluoroethylene tube processing raw materials are placed in the feed hopper, and the cleaning device cleans the inner wall of the feed hopper to prevent the raw materials from sticking to the inner wall of the feed hopper. The raw materials are fed into the spiral feeding pipe through the feed hopper, and the spiral feeding pipe heats and extrude the raw materials to move the expanded polytetrafluoroethylene tube out of the discharge port. At this time, the supporting device supports the expanded polytetrafluoroethylene tube, and the limiting device limits the two sides of the expanded polytetrafluoroethylene tube to prevent the expanded polytetrafluoroethylene tube from bending, thereby improving the practicability of the extrusion equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 It is a three-dimensional structural schematic diagram of the supporting device and the limiting device of the utility model;
[0025] Figure 3 For this utility model Figure 2 A magnified image of point A;
[0026] Figure 4 It is a three-dimensional structural schematic diagram of the cleaning device of the utility model.
[0027] Figure 5 It is a schematic diagram of a second embodiment of the limiting member.
[0028] Figure 6 It is a schematic diagram of a third embodiment of the limiting member.
[0029] Legend: 1. Workbench; 2. Spiral feeding pipe; 3. Feed hopper; 4. Discharge port; 5. Support device; 51. Pad; 52. Guide tube; 53. Guide rod; 54. Bolt; 55. Threaded hole; 56. U-shaped plate; 57. Pull rope; 58. Telescopic rod; 59. Rotating rod; 6. Limiting device; 61. Screw; 62. Limiting piece; 63. Limiting rod; 64. Handle; 7. Cleaning device; 71. U-shaped frame; 72. Servo motor; 73. Rotating shaft; 74. Cleaning plate. DETAILED DESCRIPTION
[0030] Example 1, reference Figure 1-4 As shown, this embodiment discloses an expanded polytetrafluoroethylene tube continuous extrusion device, including a workbench 1, a spiral feeding tube 2 is fixedly connected to the upper surface of the workbench 1, a feed hopper 3 is fixedly connected to the top of the spiral feeding tube 2, a discharge port 4 is opened at one end of the spiral feeding tube 2, a supporting device 5 for supporting the expanded polytetrafluoroethylene tube is provided at the workbench 1 corresponding to the discharge port 4, the supporting device 5 includes a U-shaped plate 56, two arms of the U-shaped plate 56 are provided with limit devices 6 for preventing the expanded polytetrafluoroethylene tube from deviating to both sides, and a cleaning device 7 for rotating and scraping and cleaning the inner wall of the feed hopper 3 is provided inside the feed hopper 3. When the expanded polytetrafluoroethylene tube needs to be processed, the expanded polytetrafluoroethylene tube processing raw material is placed in the feed hopper 3, and the cleaning device 7 cleans the inner wall of the feed hopper 3 to prevent the raw material from sticking to the inner wall of the feed hopper 3. The raw material is fed into the spiral feeding tube 2 through the feed hopper 3. The spiral feeding tube 2 heats and extrude the raw material to move the expanded polytetrafluoroethylene tube out of the discharge port 4. At this time, the supporting device 5 supports the expanded polytetrafluoroethylene tube, and the limiting device 6 limits the two sides of the expanded polytetrafluoroethylene tube to prevent the expanded polytetrafluoroethylene tube from bending, thereby improving the practicability of the extrusion equipment.
[0031] Reference Figure 1-4As shown, the supporting device 5 also includes a pad 51, which is fixedly connected to one end of the workbench 1, and a guide tube 52 is fixedly connected to the upper surface of the pad 51. A guide rod 53 is slidably connected to one end of the guide tube 52, and one end of the guide rod 53 is fixedly connected to the U-shaped plate 56. Bolts 54 are threadedly inserted into the arc surface of the guide tube 52, and a plurality of threaded holes 55 are opened on the guide rod 53 corresponding to the bolts 54, and the size of the bolts 54 is matched with the size of the threaded holes 55. Since the extrusion of expanded polytetrafluoroethylene tubes with different diameters requires the installation of extrusion dies of different sizes on the discharge port 4, and since the center points of the basic dies with different diameters are always on the same horizontal line (that is, the central axis of the extruded expanded polytetrafluoroethylene tube is always on the same horizontal line), this leads to inconsistent bottom heights of tubes with different diameters. When it is necessary to support the expanded polytetrafluoroethylene tube, the staff moves the U-shaped plate 56, and the guide rod 53 moves in the guide tube 52. After the U-shaped plate 56 moves to a suitable height, the staff rotates the bolt 54, and the bolt 54 passes through the guide tube 52 and is inserted into the threaded hole 55 of the guide rod 53, thereby achieving the effect of adjusting the height and fixing the U-shaped plate 56 (it should be noted that the bolt 54 can also be directly squeezed on the surface of the guide rod 53 by tightening the thread to deform its surface, thereby fixing the guide rod 53). The U-shaped plate 56 set by the support device 5 achieves the effect of supporting the expanded polytetrafluoroethylene tube, thereby preventing the expanded polytetrafluoroethylene tube from bending under the action of its own gravity.
[0032] Reference Figure 1-4 As shown, a telescopic rod 58 is fixedly connected to the upper surface of the pad 51, and the other end of the telescopic rod 58 is fixedly connected to the U-shaped plate 56. By setting the telescopic rod 58, the effect of limiting the moving direction of the U-shaped plate 56 is achieved, so that the U-shaped plate 56 is prevented from rotating, and the stability of the movement of the U-shaped plate 56 is improved. A pull rope 57 is fixedly connected to one end of the bolt 54, and one end of the pull rope 57 is fixedly connected to the guide tube 52. By setting the pull rope 57, the effect of limiting the maximum displacement of the bolt 54 is achieved, so that the bolt 54 is prevented from falling when not in use. The U-shaped plate 56 is internally rotatably connected with a plurality of rotating rods 59, and the plurality of rotating rods 59 are linearly distributed. By setting the rotating rod 59 to rotate with the expanded polytetrafluoroethylene tube, the friction between the expanded polytetrafluoroethylene tube and the U-shaped plate 56 is reduced, and the movement of the expanded polytetrafluoroethylene tube is facilitated.
[0033] Reference Figure 1-4As shown, the limiting device 6 includes two screws 61, which are respectively threadedly connected to the two arms of the U-shaped plate 56, and the ends of the two screws 61 that are close to each other are both rotatably connected to the limiting member 62. The two arms of the U-shaped plate 56 are slidably inserted with a limiting rod 63, and one end of the limiting rod 63 is fixedly connected to the limiting member 62. Before the U-shaped plate 56 supports the expanded polytetrafluoroethylene tube, the staff first rotates the two screws 61, and the two limiters 62 are close to or away from each other, so that the two limiters 62 are respectively fitted with the two sides of the expanded polytetrafluoroethylene tube. The limiting device 6 achieves the effect of limiting the two sides of the expanded polytetrafluoroethylene tube, avoiding the expansion polytetrafluoroethylene tube from deviating to the two sides, and further avoiding the expansion polytetrafluoroethylene tube from bending. One end of the screw 61 is fixedly connected to a handle 64, and the surface of the handle 64 is provided with anti-slip grooves. By setting the handle 64, the staff can easily rotate the screw 61, which brings convenience to the staff (wherein the limiter 62 can be a long rectangular strip structure).
[0034] Reference Figure 1-4 As shown, the cleaning device 7 includes a U-shaped frame 71, the two arms of the U-shaped frame 71 are fixedly connected to the upper surface of the feed hopper 3, a servo motor 72 is fixedly connected to the upper surface of the U-shaped frame 71, a rotating shaft 73 is fixedly connected to the output end of the servo motor 72, and two mutually symmetrical cleaning plates 74 are fixedly connected to the arc surface of the rotating shaft 73, and the cleaning plates 74 are in contact with the inner wall of the feed hopper 3. After placing the raw materials into the inside of the feed hopper 3, the staff turns on the servo motor 72 on the U-shaped frame 71, and the servo motor 72 rotates with the rotating shaft 73 and the cleaning plates 74, and the cleaning plates 74 clean the inner wall of the feed hopper 3. The cleaning device 7 achieves the effect of cleaning the inner wall of the feed hopper 3, and avoids the raw materials from sticking to the inner wall of the feed hopper 3, thereby causing a waste of resources.
[0035] Example 2, reference Figure 5 On the basis of Example 1, the limit member 62 can be a triangular prism structure, wherein the two right-angled surfaces of the triangular prism-shaped limit member 62 are respectively arranged horizontally and vertically, and the inclined surface is used to lift and limit the extruded expanded polytetrafluoroethylene tube at the side near the bottom, so that the expanded polytetrafluoroethylene tube can be kept centered as much as possible during the lifting process, wherein rolling shafts are evenly arranged on the inclined surface of the limit member 62, and the rolling shafts can facilitate the sliding of the expanded polytetrafluoroethylene tube.
[0036] Example 3, reference Figure 5On the basis of Example 1, the overall structure of the limiter 62 can be a triangular prism structure, wherein the two right-angled surfaces of the triangular prism-shaped limiter 62 are respectively arranged horizontally and vertically, and its inclined surface is recessed toward the interface of the two right-angled surfaces, and shorter conveying rollers are evenly arranged at the recessed parts. The recessed parts can fit well with the extruded expanded polytetrafluoroethylene tube and lift and limit it, and can also keep the expanded polytetrafluoroethylene tube centered, and the rolling shaft can facilitate the sliding of the expanded polytetrafluoroethylene tube.
[0037] Working principle: When the expanded polytetrafluoroethylene tube needs to be processed, the raw material for expanded polytetrafluoroethylene tube processing is placed in the feed hopper 3, and the raw material is fed into the spiral feeding tube 2 through the feed hopper 3. The spiral feeding tube 2 heats and extrude the raw material, and the expanded polytetrafluoroethylene tube is formed and continuously extruded from the discharge port 4.
[0038] When the expanded polytetrafluoroethylene tube needs to be supported, the staff moves the U-shaped plate 56, and the guide rod 53 moves in the guide tube 52. After the U-shaped plate 56 moves to a suitable height, the staff rotates the bolt 54, and the bolt 54 passes through the guide tube 52 and is inserted into the threaded hole 55 of the guide rod 53, thereby achieving the effect of fixing the U-shaped plate 56. When the expanded polytetrafluoroethylene tube comes out of the discharge port 4, the U-shaped plate 56 supports the expanded polytetrafluoroethylene tube with the help of the rotating rod 59. The U-shaped plate 56 set by the supporting device 5 achieves the effect of supporting the expanded polytetrafluoroethylene tube, thereby preventing the expanded polytetrafluoroethylene tube from bending under the action of its own gravity.
[0039] Before the U-shaped plate 56 supports the expanded polytetrafluoroethylene tube, the staff first rotates the two screws 61 through the handle 64, and the two screws 61 and the two limit members 62 move closer to or away from each other, so that the two limit members 62 are respectively fitted with the two sides of the expanded polytetrafluoroethylene tube. The limiting device 6 achieves the effect of limiting the two sides of the expanded polytetrafluoroethylene tube, preventing the expanded polytetrafluoroethylene tube from deviating to the two sides, and further preventing the expanded polytetrafluoroethylene tube from bending.
[0040] After placing the raw materials into the feed hopper 3, the staff turns on the servo motor 72 on the U-shaped frame 71. The servo motor 72 drives the rotating shaft 73 and the cleaning plate 74 to rotate. The cleaning plate 74 cleans the inner wall of the feed hopper 3. The cleaning device 7 is used to clean the inner wall of the feed hopper 3, thereby preventing the raw materials from sticking to the inner wall of the feed hopper 3, thereby causing a waste of resources.
Claims
1. An expanded polytetrafluoroethylene tube continuous extrusion device, comprising a workbench (1), characterized in that: A spiral feeding pipe (2) is fixedly connected to the upper surface of the workbench (1), a feed hopper (3) is fixedly connected to the top of the spiral feeding pipe (2), a discharge port (4) is provided at one end of the spiral feeding pipe (2), and a supporting device (5) for supporting the expanded polytetrafluoroethylene tube is provided at a position corresponding to the discharge port (4) of the workbench (1), the supporting device (5) comprising a U-shaped plate (56), and two arms of the U-shaped plate (56) are provided with limiting devices (6) for preventing the expanded polytetrafluoroethylene tube from deviating to both sides.
2. The expanded polytetrafluoroethylene tube continuous extrusion equipment according to claim 1, characterized in that: The supporting device (5) further comprises a pad (51), wherein the pad (51) is fixedly connected to one end of the workbench (1), a guide tube (52) is fixedly connected to the upper surface of the pad (51), one end of the guide tube (52) is slidably connected to a guide rod (53), one end of the guide rod (53) is fixedly connected to the U-shaped plate (56), a bolt (54) is threadedly inserted into the arc surface of the guide tube (52), and a plurality of threaded holes (55) are provided on the guide rod (53) corresponding to the bolt (54), and the size of the bolt (54) is matched with the size of the threaded hole (55).
3. The continuous extrusion equipment for expanded polytetrafluoroethylene tube according to claim 2, characterized in that: A telescopic rod (58) is fixedly connected to the upper surface of the pad (51), and the other end of the telescopic rod (58) is fixedly connected to the U-shaped plate (56).
4. The continuous extrusion equipment for expanded polytetrafluoroethylene tube according to claim 2, characterized in that: One end of the bolt (54) is fixedly connected to a pull rope (57), and one end of the pull rope (57) is fixedly connected to the guide tube (52).
5. The expanded polytetrafluoroethylene tube continuous extrusion equipment according to claim 2, characterized in that: The U-shaped plate (56) is internally rotatably connected to a plurality of rotating rods (59), and the plurality of rotating rods (59) are linearly distributed.
6. The expanded polytetrafluoroethylene tube continuous extrusion equipment according to claim 1, characterized in that: The limiting device (6) comprises two screw rods (61), the two screw rods (61) are respectively threadedly connected to the two arms of the U-shaped plate (56), the ends of the two screw rods (61) close to each other are rotatably connected to the limiting member (62), the two arms of the U-shaped plate (56) are slidably provided with a limiting rod (63), and one end of the limiting rod (63) is fixedly connected to the limiting member (62).
7. The expanded polytetrafluoroethylene tube continuous extrusion equipment according to claim 6, characterized in that: One end of the screw rod (61) is fixedly connected to a handle (64), and the surface of the handle (64) is provided with anti-slip grooves.
8. The expanded polytetrafluoroethylene tube continuous extrusion equipment according to claim 1, characterized in that: The inside of the feed hopper (3) is provided with a cleaning device (7) for performing rotary scraping and cleaning on the inner wall of the feed hopper (3).
9. The expanded polytetrafluoroethylene tube continuous extrusion equipment according to claim 8, characterized in that: The cleaning device (7) comprises a U-shaped frame (71), two arms of the U-shaped frame (71) are fixedly connected to the upper surface of the feed hopper (3), a servo motor (72) is fixedly connected to the upper surface of the U-shaped frame (71), an output end of the servo motor (72) is fixedly connected to a rotating shaft (73), and the arc surface of the rotating shaft (73) is fixedly connected to two mutually symmetrical cleaning plates (74), and the cleaning plates (74) are in contact with the inner wall of the feed hopper (3).