Cutting device for producing PFA (Polyfluoroalkoxy) pipe

Abstract

The invention discloses a cut-off device for producing a PFA pipe, and belongs to the technical field of PFA pipe machining, the cut-off device comprises a device fixing seat used for supporting the whole device, the device fixing seat comprises a guide table and a machining table, the machining table is arranged at the top end of the guide table, the guide table is used for guiding the PFA pipe, and the machining table is arranged at the top end of the guide table. The device is provided with the tensioning adjusting assembly and the clamping assembly, in the whole process, the whole device can automatically clamp and pull the PFA pipe only by initially manually pulling the PFA pipe to the top end of the tensioning adjusting assembly, frequent manual positioning work is not needed, the labor intensity of workers is reduced, the labor intensity of the workers is reduced, the labor intensity of the workers is reduced, and the production efficiency is improved. And the automation degree is higher, and convenience and practicability are achieved.

Description

Technical Field

[0001] This application relates to the technical field related to the production of PFA tubes, and in particular to a cutting device for producing PFA tubes. Background Art

[0002] PFA tubes (perfluoroalkoxy resin tubes) are a type of high-performance fluoroplastic tube, made by copolymerizing tetrafluoroethylene (TFE) and perfluoroalkyl vinyl ether (PAVE). It inherits the excellent properties of PTFE (polytetrafluoroethylene) and at the same time improves its processing performance. The production process of PFA tubes involves multiple key steps. Generally, raw materials need to be selected first, and then, extrusion work is carried out through an extruder. Finally, a cutting device is used to cut the formed PFA tube to achieve the purpose of subsequent production.

[0003] Through the cutting device, the cutting length of the PFA tube can be accurately controlled to ensure that the length of each section of the tube meets the design requirements. The principle is that after the clamping device outside clamps one side of the PFA tube, then, the PFA tube is pulled to move. After reaching the appropriate distance, the telescopic cylinder outside controls the cutting knife to descend to complete the effect of cutting the PFA tube, such as the cutting principle disclosed in a cutting device for producing PFA fluoroplastic tubes with the application number 202123372816,1; However, when the above-mentioned cutting device is cutting, it is necessary for workers to first position the PFA tube, and then, the automatic cutting work of the PFA tube can be carried out. In the whole process, there are many steps that require manual intervention and continuous and efficient automatic cutting work cannot be carried out, resulting in low operating efficiency. Summary of the Invention

[0004] One of the purposes of this application is to solve the problem that when the existing PFA tube cutting device is in use, there are many manual intervention steps and continuous and efficient automatic cutting work cannot be carried out, and to provide a cutting device for producing PFA tubes.

[0005] To achieve the above purpose, the technical solution adopted in this application is: a cutting device for producing PFA tubes, including a device fixing seat, which is used for the support work of the whole device. The device fixing seat includes a guiding platform and a processing platform. The processing platform is arranged at the top of the guiding platform. The guiding platform is used for guiding the PFA tube, and the processing platform is used for processing and cutting the guided PFA tube; It also includes; A placing component, which is arranged outside the guiding platform and is used for placing the coiled PFA tube to be cut; A guiding component, which is arranged at the top of the guiding platform and is used for guiding the PFA tube to be cut; A truncating component, which is arranged above the processing table and is used for truncating PFA tubes; A tension adjusting component, which is arranged at the middle position of the processing table and is used for tension adjusting the guided PFA tube; A clamping component, which moves in the middle of the processing table through a moving component to complete the clamping, pulling and moving work on the top end of the PFA tube. The moving component is arranged inside the processing table, and a storage box is also arranged at the bottom of the processing table for storing the truncated PFA tubes.

[0006] Preferably, the processing table includes two groups of fixed tables, and one group of moving components are respectively arranged inside the two groups of fixed tables. A clamping component is arranged in the middle of the two groups of moving components. The top end of the moving component penetrates through the limiting groove inside the processing table, and the clamping component moves in the middle of the two groups of fixed tables.

[0007] Preferably, the placing component includes a winding drum, a mounting frame and a truncated tube body. The mounting frame is arranged on one side of the guiding table, and the rotating shaft connected by bearings at its top end is engaged with the middle through hole of the winding drum. The truncated tube body is wound around the outside of the winding drum, and the inner wall of the middle through hole of the winding drum is set as a rough surface.

[0008] Preferably, the guiding component includes a fixed shaft and a guiding roller. The guiding roller is connected by bearings at the middle position of the fixed shaft, and the central axis of the fixed shaft, the central axis of the guiding table and the central axis of the processing table are in the same vertical plane.

[0009] Preferably, the truncating component includes a fixed frame, a telescopic cylinder and a truncating knife. The two sides of the bottom of the fixed frame are respectively installed at the top ends of the two fixed tables, and two groups of telescopic cylinders are arranged at the top end of the fixed frame. The bottom of the telescopic cylinder is provided with a truncating knife, and the truncating component is arranged on one side of the tension adjusting component.

[0010] Preferably, the tension adjusting component includes tensioning mechanisms arranged at equal intervals. The tensioning mechanism includes two groups of limiting components and a control component. The limiting component includes a first roller, a second roller and a fixing component. The control work is carried out between the two groups of limiting components through the control component. The control components between adjacent tensioning mechanisms are also connected by a conveyor belt. The first roller and the second roller are respectively arranged above and below the middle of the fixing component, and the top ends of the first roller and the second roller are connected with the fixing component through an adjusting component; The fixing component includes a fixed frame and a moving frame. A slot is opened inside the fixed frame, and the moving frame is integrally installed on the outside. An adjusting component is arranged in the slot inside the fixed frame. A tooth block is arranged on one side of the moving frame and is engaged with the control component, and a sliding block is arranged on the other side for assisting its sliding work with the fixed table; The control component includes a rotating gear, a connecting cylinder, a rotating disc assembly, and a rotating assembly. A connecting cylinder is coaxially installed on the outer side of the rotating gear, and a compression spring is arranged inside the connecting cylinder and connected to the top end of the rotating assembly. A rotating disc assembly is also arranged on the outer side of the rotating assembly, and two adjacent rotating disc assemblies are connected by a conveyor belt. The adjusting component includes two adjusting cylinders and two rectangular covers. The two adjusting cylinders are symmetrically arranged, and a rectangular cover is integrally installed at the top end of the adjusting cylinder. A bearing is arranged inside the rectangular cover and connected to the first roller or the second roller.

[0011] Preferably, four limiting holes are equiangularly distributed inside the connecting cylinder. The rotating disc assembly includes a rotating disc and a limiting ring. A limiting ring is arranged on the outer side of the rotating disc, and the top end of the limiting ring is connected to the outer wall of the fixed table by a bearing. Four limiting holes are also equiangularly distributed inside the rotating disc. The rotating assembly includes a clamping shaft, a connecting shaft, and a rotating handle. The clamping shaft and the connecting shaft are coaxially connected, and the top end of the connecting shaft is connected to the rotating handle. Four limiting blocks are equiangularly distributed on the outer wall of the clamping shaft, and the limiting blocks are engaged with the limiting holes.

[0012] Preferably, the moving component includes a driving motor, a rotating lead screw, and a moving sleeve. The top end of the driving motor is coaxially connected to the rotating lead screw, and the moving sleeve is threadedly connected to the outer side of the rotating lead screw. The top end of the moving sleeve passes through the limiting groove.

[0013] Preferably, the clamping component includes a fixed box body and a clamping mechanism. The clamping mechanism is arranged inside the fixed box body. The clamping mechanism includes sliding blocks, a connecting lead screw, moving cylinders, connecting rods, and clamping heads. Two groups of sliding blocks are symmetrically arranged inside the fixed box body, and a connecting lead screw is connected to the middle of them by a bearing. The outer part of the connecting lead screw is arranged in a symmetric thread structure, and moving cylinders are threadedly connected to the outer parts of the two symmetric thread structures. The top end of the moving cylinder is integrally installed with a connecting rod, and the top end of the connecting rod is provided with a clamping head. A hollow structure is arranged inside one of the sliding blocks for placing the control motor for driving the connecting lead screw to rotate.

[0014] Compared with the prior art, the beneficial effects of this application are as follows: (1) There is a tension adjustment component and a clamping component. First, manually pass the top end of the PFA pipe to be cut through the tension adjustment component, and then the moving mechanism can control it to move to the innermost position, clamp and stretch the PFA pipe protruding from the top end of the tension adjustment component. After reaching the appropriate position, control the cutting component to work, and the cutting work can be completed. Since the cutting component is arranged outside the tension adjustment component, the top end of the cut PFA pipe is automatically clamped by the tension adjustment component. Then, control the clamping component to reach the innermost position again, and the top end of the PFA pipe can be clamped and moved again to complete the cutting work again. In the whole process, only need to manually pull the PFA pipe to the top end of the tension adjustment component initially, and then the whole device can automatically carry out the clamping and pulling work of the PFA pipe, without the need for manual frequent positioning work, with higher automation and more convenient and practical.

[0015] (2) There are equally spaced tensioning mechanisms, which can not only clamp one side of the PFA pipe, but also adjust the tension degree of the PFA pipe according to processing requirements. It can not only ensure the stability of the PFA pipe during cutting, reduce the vibration and shaking of the pipe, make the cutting surface smoother and more flat, without burrs and irregular edges. With the setting of the adjustment component inside the tensioning mechanism, the distance between the first roller and the second roller can also be adjusted according to the different sizes of the PFA pipe, making the flexibility of the whole tensioning mechanism better, and then meeting the needs of various productions.

[0016] (3) Each tensioning mechanism can work independently or synchronously, which is convenient for the staff to adjust according to the actual production needs, so that the application range of the whole device is wider; (4) There are engaging storage boxes at the bottoms of the two fixed platforms of the processing table. After the PFA pipe is cut, controlling the clamping work of the clamping component at its top end will cause the PFA pipe to directly fall into the interior of the storage box for storage, reducing the dependence on manual labor, optimizing the production process, and achieving the purpose of improving production efficiency. Description of the Drawings

[0017] Figure 1 It is the overall front view structural schematic diagram of the present invention.

[0018] Figure 2 It is the overall top view structural schematic diagram of the present invention.

[0019] Figure 3 It is the structural schematic diagram of the clamping component of the present invention.

[0020] Figure 4 It is the structural schematic diagram of the connection between the clamping mechanism and the moving component of the present invention.

[0021] Figure 5 This is a schematic diagram of a partially enlarged structure of the clamping mechanism of the present invention.

[0022] Figure 6 This is a schematic diagram of the tensioning adjustment assembly structure of the present invention.

[0023] Figure 7 This is a schematic diagram of an enlarged structure at the connection between the fixing component and the control component of the present invention.

[0024] Figure 8 This is a schematic diagram of the tensioning mechanism structure of the present invention; Figure 9 This is a schematic diagram of a half-section structure of the fixing component of the present invention; Figure 10 This is a schematic diagram of an enlarged structure of the control component of the present invention; Figure 11 This is a schematic diagram of a disassembled structure of the control component of the present invention; Figure 12 This is a schematic diagram of a half-section structure of the control component of the present invention.

[0025] In the figure: 1. Device fixing base; 11. Guide table; 12. Processing table; 121. Limiting groove; 2. Placing component; 21. Winding drum; 22. Mounting frame; 23. Truncated pipe body; 3. Guide component; 4. Truncating component; 41. Fixing frame; 42. Telescopic cylinder; 43. Truncating knife; 5. Tensioning adjustment component; 51. First roller; 52. Second roller; 53. Fixing component; 531. Fixing frame; 532. Moving frame; 54. Control component; 541. Rotating gear; 542. Connecting cylinder; 543. Rotating disc assembly; 5431. Rotating disc; 5432. Limiting ring; 544. Rotating component; 5441. Engaging shaft; 5442. Connecting shaft; 5443. Rotating handle; 55. Conveyor belt; 56. Adjusting component; 561. Adjusting cylinder; 562. Rectangular cover; 6. Moving component; 61. Driving motor; 62. Rotating lead screw; 63. Moving sleeve; 7. Clamping component; 71. Fixed box body; 72. Clamping mechanism; 721. Sliding block; 722. Connecting lead screw; 723. Moving cylinder; 724. Connecting rod; 725. Clamping head; 8. Storage box body; 9. Compression spring. Detailed implementation manners

[0026] Next, in combination with the specific implementation manners, the present application will be further described. It should be noted that, on the premise of no conflict, any combination of the following described embodiments or technical features can form a new embodiment.

[0027] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0029] A preferred embodiment of the present application, as Figures 1 to 12 shown, a cutting device for producing PFA tubes includes a device fixing base 1, which is used for the supporting work of the whole device. The device fixing base 1 includes a guiding platform 11 and a processing platform 12. The processing platform 12 is arranged at the top of the guiding platform 11. The guiding platform 11 is used for the guiding work of the PFA tube, and the processing platform 12 is used for the processing and cutting work of the guided PFA tube; It also includes; A placing component 2, which is arranged outside the guiding platform 11 and is used for the placing work of the coiled PFA tube to be cut; A guiding component 3, which is arranged at the top of the guiding platform 11 and is used for the guiding work of the PFA tube to be cut; A cutting component 4, which is arranged above the processing platform 12 and is used for the cutting work of the PFA tube; A tensioning and adjusting component 5, which is arranged at the middle position of the processing platform 12 and is used for the tensioning and adjusting work of the guided PFA tube; A clamping component 7, which moves in the middle of the processing platform 12 through a moving component 6 to complete the clamping, pulling and moving work on the top end of the PFA tube. The moving component 6 is arranged inside the processing platform 12, and a storage box 8 is also arranged at the bottom of the processing platform 12 for the storage work of the cut PFA tube; The present application provides a cutting device for a PFA tube with a tension adjusting component 5. Specifically, when in use, first, the entire device is placed at a suitable position on the ground through the guiding platform 11 and the processing table 12. After the production is completed, the coiled PFA tube is set above the placing component 2. An operator pulls the top end of the tube to be cut, so that the tube passes through the guiding component 3 and then enters the inside of the tension adjusting component 5 and then exits. After that, the moving component 6 is started, so that it drives the clamping component 7 in the middle of the processing table 12 to move to the innermost position, and then the clamping component 7 clamps the top end of the tube that exits the inside of the tension adjusting component 5. After that, the moving component 6 is controlled to start again, so that the clamping component 7 pulls one side of the tube to move. After moving to a suitable position, it is fixed. At this time, the cutting component 4 can be started to make it descend to complete the cutting work of the tube. Finally, the clamping of the tube by the clamping component 7 is controlled to be released, so that the cut tube automatically falls into the inside of the storage box 8 to complete the collection work; When cutting the tube, one side of the tube is clamped by the clamping component 7, and the other side is clamped and fixed by the tension adjusting component 5. Therefore, it is ensured that the cutting component 4 can fix the tube when cutting the tube, preventing it from moving or loosening during cutting. At the same time, through the adjustment work of the tension adjusting component 5, the tension of the fixed tube can also be adjusted to ensure that the tube can always be cut in a stretched state, thereby achieving the effect of accurately controlling the cutting length and improving the dimensional accuracy and consistency of the product.

[0030] Among them, according to Figure 1 、 Figure 2 and Figure 3 shown, the processing table 12 includes 2 groups of fixed tables. One group of moving components 6 are respectively arranged inside the 2 groups of fixed tables. A clamping component 7 is arranged in the middle of the 2 groups of moving components 6. The top end of the moving component 6 penetrates through the limiting groove 121 inside the processing table 12, and the clamping component 7 moves in the middle of the 2 groups of fixed tables; Specifically, when the moving components 6 inside the 2 groups of fixed tables are controlled to start, the moving components 6 will drive the clamping component 7 to move in the middle of the 2 groups of fixed tables.

[0031] In order to place the coiled tube, according to Figure 1 and Figure 2 shown, the placing component 2 includes a winding drum 21, a mounting frame 22 and a truncated tube body 23. The mounting frame 22 is arranged on one side of the guiding platform 11, and the rotating shaft connected by bearings at its top is engaged with the middle through hole of the winding drum 21. The truncated tube body 23 is wound around the outside of the winding drum 21, and the inner wall of the middle through hole of the winding drum 21 is set as a rough surface; Specifically, when placing, since the truncated pipe body 23 is wound around the outside of the winding drum 21, take the winding drum 21 and engage it with the rotating shaft that is connected to the top bearing of the mounting frame 22. Then, pull one side of the truncated pipe body 23, and the winding drum 21 will rotate under the action of the rotating shaft, achieving the purpose of automatically unwinding the truncated pipe body 23.

[0032] Among them, according to Figure 1 and Figure 2 shown, the guiding component 3 includes a fixed shaft and a guiding roller. The guiding roller is connected to the middle position of the fixed shaft by bearings, and the central axis of the fixed shaft, the central axis of the guiding platform 11, and the central axis of the processing table 12 are in the same vertical plane; Specifically, after the top of the truncated pipe body 23 is pulled, it passes through the guiding roller in the middle of the fixed shaft, and thus the guiding work of the truncated pipe body 23 can be carried out.

[0033] As a further preference of this embodiment, according to Figure 1 and Figure 2 shown, the truncating component 4 includes a fixed frame 41, a telescopic cylinder 42, and a truncating knife 43. The two sides of the bottom of the fixed frame 41 are respectively installed on the tops of two fixed platforms, and two sets of telescopic cylinders 42 are arranged at the top of the fixed frame 41. The bottom of the telescopic cylinder 42 is provided with a truncating knife 43. The truncating component 4 is arranged on one side of the tensioning and adjusting component 5; Among them, when truncating, it is necessary to start the telescopic cylinder 42 at the top of the fixed frame 41 to make it descend and drive the truncating knife 43 to descend, so that the truncated pipe body 23 at the bottom can be automatically truncated.

[0034] As a further preference of this embodiment, according to Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 shown, the tensioning and adjusting component 5 includes tensioning mechanisms arranged at equal intervals. The tensioning mechanism includes two sets of limiting components and a control component 54. Among them, the limiting component includes a first roller 51, a second roller 52, and a fixing component 53. The two sets of limiting components are controlled by the control component 54. The control component 54 between adjacent tensioning mechanisms is also connected by a conveyor belt 55. The first roller 51 and the second roller 52 are respectively arranged above and below the middle of the fixing component 53. The tops of the first roller 51 and the second roller 52 are connected to the fixing component 53 through an adjusting component 56; The fixed component 53 includes a fixed frame 531 and a movable frame 532. A slot is provided inside the fixed frame 531, and the movable frame 532 is integrally installed on the outside. An adjusting component 56 is arranged in the slot inside the fixed frame 531. A toothed block is arranged on one side of the movable frame 532 and meshes with the control component 54. A slider is arranged on the other side to assist in sliding work between it and the fixed table. The control component 54 includes a rotating gear 541, a connecting cylinder 542, a rotating disk assembly 543 and a rotating component 544. A connecting cylinder 542 is coaxially installed on the outside of the rotating gear 541, and a compression spring 9 is arranged inside the connecting cylinder 542 and connected to the top of the rotating component 544. A rotating disk assembly 543 is also arranged on the outside of the rotating component 544. Two adjacent rotating disk assemblies 543 are connected by a conveyor belt 55. The adjusting component 56 includes two adjusting cylinders 561 and two rectangular covers 562. The two adjusting cylinders 561 are symmetrically arranged, and a rectangular cover 562 is integrally installed at the top of the adjusting cylinder 561. A bearing is arranged inside the rectangular cover 562 and connected to the first roller 51 or the second roller 52.

[0035] Four limiting holes are equiangularly distributed inside the connecting cylinder 542. The rotating disk assembly 543 includes a rotating disk 5431 and a limiting ring 5432. A limiting ring 5432 is arranged on the outside of the rotating disk 5431, and the top of the limiting ring 5432 is connected to the outer wall of the fixed table by a bearing. Four limiting holes are also equiangularly distributed inside the rotating disk 5431. The rotating component 544 includes a clamping shaft 5441, a connecting shaft 5442 and a rotating handle 5443. The clamping shaft 5441 and the connecting shaft 5442 are coaxially connected, and the top of the connecting shaft 5442 is connected to the rotating handle 5443. Four limiting blocks are equiangularly distributed on the outer wall of the clamping shaft 5441, and the limiting blocks are engaged with the limiting holes. Specifically, first, when the pipe cutting tube 23 needs to be threaded, the two groups of adjusting cylinders 561 on the adjusting component 56 inside the fixed component 53 need to be started, so that they drive the two groups of rectangular covers 562 to move in opposite directions in the slots inside the fixed frame 531. Thus, the rectangular covers 562 drive the first roller 51 and the second roller 52 to move in opposite directions, and thus the pipe cutting tube 23 can be easily passed through the first roller 51 and the second roller 52 in each tensioning mechanism. After the pipe cutting tube 23 passes through the tensioning and adjusting component 5, the adjusting cylinder 561 is controlled to work again, so that it drives the first roller 51 and the second roller 52 to move towards each other, and thus the effect of clamping the pipe cutting tube 23 can be completed, which is convenient for subsequent cutting work. When it is necessary to adjust the tension of the cut pipe body 23 in the tension adjustment assembly 5 and the clamping assembly 7, at this time, only need to start the control assembly 54, so that it drives 2 sets of limit assemblies in the tension mechanism arranged at equal intervals to move in the opposite direction. Thus, it can adjust the tightness of the cut pipe body 23 in the fixed interval, so as to reduce the vibration and shaking of the cut pipe body 23; In this embodiment, since the tension adjustment assembly 5 includes a tension mechanism arranged at equal intervals, and the tension mechanism includes 2 limit assemblies and a control assembly 54, the staff can independently control the adjustment assembly 56 in different limit assemblies according to different usage requirements to achieve the effect of clamping at different positions. When the control assembly 54 is started independently, the staff needs to squeeze the rotary handle 5443, so that it moves into the interior of the connecting cylinder 542 through the connecting shaft 5442 and the engaging shaft 5441, and then squeezes the compression spring 9. Thus, the limit block on the engaging shaft 5441 is engaged with the limit hole inside the connecting cylinder 542. At this time, the engaging shaft 5441 is completely separated from the rotary disk 5431. Therefore, at this time, when the rotary handle 5443 is rotated, it will drive the engaging shaft 5441 to rotate through the connecting shaft 5442. When the engaging shaft 5441 rotates, it will make the connecting cylinder 542 rotate to drive the rotary gear 541 to rotate. When the rotary gear 541 rotates, it will engage with the tooth block on one side of the moving frame 532. Thus, the moving frame 532 drives the fixed frame 531 to move up and down. Since 2 sets of fixing assemblies 53 are symmetrically arranged on both sides of the rotary gear 541, 2 sets of fixing assemblies 53 will move in the opposite direction, so that the first roller 51 and the second roller 52 on the 2 sets of fixing assemblies 53 drive the cut pipe body 23 to bend, achieving the effect of tension adjustment; When it is necessary to control multiple tension mechanisms to perform tension adjustment simultaneously, at this time, there is no need to compress the rotary handle 5443, and it can be directly rotated. When it rotates, since the limit block on the engaging shaft 5441 is engaged with the limit holes in both the connecting cylinder 542 and the rotary disk 5431, the rotary disk 5431 will also rotate. When it rotates, through the setting of the external conveyor belt 55, the rotary disks 5431 on the adjacent tension mechanisms will also rotate, and then it can drive the rotary gears 541 coaxially connected to the rotary disks 5431 to rotate. Thus, the purpose of simultaneously adjusting the tension mechanisms arranged at equal intervals can be achieved.

[0036] Among them, when the clamping assembly 7 works, according to Figure 3 、 Figure 4 and Figure 5As shown, the moving component 6 includes a driving motor 61, a rotating lead screw 62, and a moving sleeve 63. The top of the driving motor 61 is coaxially connected to the rotating lead screw 62, and the moving sleeve 63 is threadedly connected to the outside of the rotating lead screw 62. The top of the moving sleeve 63 passes through the limiting groove 121.

[0037] The clamping component 7 includes a fixed box body 71 and a clamping mechanism 72. The clamping mechanism 72 is arranged inside the fixed box body 71. The clamping mechanism 72 includes a sliding block 721, a connecting lead screw 722, a moving cylinder 723, a connecting rod 724, and a clamping head 725. Two groups of the sliding blocks 721 are symmetrically arranged inside the fixed box body 71, and a connecting lead screw 722 is connected by a bearing in the middle thereof. The outside of the connecting lead screw 722 is provided with a symmetric thread structure, and the moving cylinders 723 connected by threads are arranged on the outside of the two symmetric thread mechanisms. The top of the moving cylinder 723 is integrally installed with a connecting rod 724, and the top of the connecting rod 724 is provided with a clamping head 725. A hollow structure is arranged inside one of the sliding blocks 721 for placing a control motor for driving the connecting lead screw 722 to rotate. Specifically, first, it is necessary to start the driving motor 61 to drive the rotating lead screw 62 to rotate. When the rotating lead screw 62 rotates, it will be threadedly connected to the moving sleeve 63. Thus, the top of the moving sleeve 63 moves back and forth under the limiting action of the limiting groove 121. When the moving sleeve 63 moves, the fixed box body 71 will move. When the fixed box body 71 drives the clamping mechanism 72 to reach a suitable position, start the control motor inside the sliding block 721 to drive the connecting lead screw 722 to rotate. When the connecting lead screw 722 rotates, it will be threadedly connected to the two moving cylinders 723. Thus, the two moving cylinders 723 drive the connecting rod 724 and the clamping head 725 to move towards each other. When the clamping heads 725 move towards each other, they will clamp the truncated pipe body 23 protruding from the top of the protruding tension adjusting component 5. After that, as the moving component 6 moves, it will pull the truncated pipe body 23 to a suitable position.

[0038] The above describes the basic principle, main features, and advantages of the present application. Those skilled in the art of this industry should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A cutting device for producing PFA tubes, comprising a device fixing base (1) for supporting the entire device. The device fixing base (1) includes a guiding platform (11) and a processing platform (12). The guiding platform (11) is provided with the processing platform (12) at its top. The guiding platform (11) is used for guiding the PFA tubes, and the processing platform (12) is used for processing and cutting the guided PFA tubes. Characterized in that, It further includes; A placing component (2) arranged outside the guiding platform (11) for placing the coiled PFA tubes to be cut. A guiding component (3) arranged at the top of the guiding platform (11) for guiding the PFA tubes to be cut. A cutting component (4) arranged above the processing platform (12) for cutting the PFA tubes. A tensioning and adjusting component (5) arranged at the middle position of the processing platform (12) for tensioning and adjusting the guided PFA tubes. A clamping component (7) which moves in the middle of the processing platform (12) through a moving component (6) to complete the clamping, pulling and moving work on the top of the PFA tube. The moving component (6) is arranged inside the processing platform (12), and a storage box (8) is further arranged at the bottom of the processing platform (12) for storing the cut PFA tubes.

2. The cutting device for producing PFA tubes according to claim 1, wherein: The processing platform (12) includes two groups of fixed platforms. One group of moving components (6) is respectively arranged inside the two groups of fixed platforms. A clamping component (7) is arranged in the middle of the two groups of moving components (6). The top of the moving component (6) penetrates through the limiting slot (121) on the inner side of the processing platform (12), and the clamping component (7) moves in the middle of the two groups of fixed platforms.

3. A cutting device for producing PFA tubes according to claim 2, characterized in that: The placing component (2) includes a winding drum (21), a mounting frame (22) and a cut tube body (23). The mounting frame (22) is arranged on one side of the guiding platform (11), and the rotating shaft connected by bearings at its top is engaged with the middle through hole of the winding drum (21). The cut tube body (23) is wound around the outside of the winding drum (21), and the inner wall of the middle through hole of the winding drum (21) is set to be a rough surface.

4. A cutting device for producing PFA tubes according to claim 3, characterized in that: The guiding component (3) includes a fixed shaft and guiding rollers. The guiding rollers are connected by bearings at the middle position of the fixed shaft, and the central axis of the fixed shaft, the central axis of the guiding platform (11) and the central axis of the processing platform (12) are in the same vertical plane.

5. A cutting device for producing PFA tubes according to claim 4, characterized in that: The cutting component (4) includes a fixed frame (41), a telescopic cylinder (42) and a cutting knife (43). The two sides of the bottom of the fixed frame (41) are respectively installed on the tops of the two fixed platforms, and two groups of telescopic cylinders (42) are arranged at the top of the fixed frame (41). The cutting knife (43) is arranged at the bottom of the telescopic cylinder (42). The cutting component (4) is arranged on one side of the tensioning and adjusting component (5).

6. The cutting device for producing PFA tubes according to claim 5, characterized in that: The tension adjustment assembly (5) includes tensioning mechanisms arranged at equal intervals. The tensioning mechanism includes two sets of limiting components and a control component (54). The limiting component includes a first roller (51), a second roller (52), and a fixing component (53). The two sets of limiting components are controlled by the control component (54). The control component (54) between adjacent tensioning mechanisms is also connected by a conveyor belt (55). The first roller (51) and the second roller (52) are respectively arranged above and below the middle of the fixing component (53). The tops of the first roller (51) and the second roller (52) are connected to the fixing component (53) through an adjustment component (56). The fixing component (53) includes a fixing frame (531) and a moving frame (532). A slot is provided inside the fixing frame (531), and the moving frame (532) is integrally installed on the outside. The adjustment component (56) is arranged in the slot inside the fixing frame (531). One side of the moving frame (532) is provided with a toothed block that meshes with the control component (54), and the other side is provided with a slider for assisting its sliding work with the fixed table. The control component (54) includes a rotating gear (541), a connecting cylinder (542), a rotating disc assembly (543), and a rotating component (544). A connecting cylinder (542) is coaxially installed outside the rotating gear (541), and a compression spring (9) is arranged inside the connecting cylinder (542) and connected to the top of the rotating component (544). A rotating disc assembly (543) is also arranged outside the rotating component (544). Two adjacent rotating disc assemblies (543) are connected by a conveyor belt (55). The adjustment component (56) includes two adjustment cylinders (561) and two rectangular covers (562). The two adjustment cylinders (561) are symmetrically arranged, and a rectangular cover (562) is integrally installed at the top of the adjustment cylinder (561). A bearing is arranged inside the rectangular cover (562) and connected to the first roller (51) or the second roller (52).

7. The cutting device for producing PFA tubes according to claim 6, characterized in that: Four limiting holes are equiangularly distributed inside the connecting cylinder (542). The rotating disc assembly (543) includes a rotating disc (5431) and a limiting ring (5432). A limiting ring (5432) is arranged outside the rotating disc (5431), and the top of the limiting ring (5432) is connected to the outer wall of the fixed table through a bearing. Four limiting holes are also equiangularly distributed inside the rotating disc (5431). The rotating component (544) includes a clamping shaft (5441), a connecting shaft (5442), and a rotating handle (5443). The clamping shaft (5441) and the connecting shaft (5442) are coaxially connected, and the top of the connecting shaft (5442) is connected to the rotating handle (5443). Four limiting blocks are equiangularly distributed on the outer wall of the clamping shaft (5441), and the limiting blocks are engaged with the limiting holes.

8. The cutting device for producing PFA tubes according to claim 6, characterized in that: The moving component (6) includes a driving motor (61), a rotating lead screw (62) and a moving sleeve (63). The top of the driving motor (61) is coaxially connected to the rotating lead screw (62), and the moving sleeve (63) is threadedly connected to the outside of the rotating lead screw (62). The top of the moving sleeve (63) passes through the limiting groove (121).

9. A cutting device for producing PFA tubes according to claim 7, characterized in that: The clamping component (7) includes a fixed box body (71) and a clamping mechanism (72). The clamping mechanism (72) is arranged inside the fixed box body (71). The clamping mechanism (72) includes a sliding block (721), a connecting lead screw (722), a moving cylinder (723), a connecting rod (724) and a clamping head (725). Two groups of the sliding blocks (721) are symmetrically arranged inside the fixed box body (71), and a connecting lead screw (722) is connected by a bearing in the middle thereof. The outside of the connecting lead screw (722) is provided with a symmetric thread structure, and moving cylinders (723) are threadedly connected to the outside of the two symmetric thread mechanisms. The top of the moving cylinder (723) is integrally provided with a connecting rod (724), and the top of the connecting rod (724) is provided with a clamping head (725). A hollow structure is arranged inside one of the sliding blocks (721) for placing a control motor for driving the rotation of the connecting lead screw (722).

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