Clamping and cutting device for FEP (fluorinated ethylene propylene) heat shrink tube

Abstract

The utility model discloses a clamping and cutting device for an FEP (fluorinated ethylene propylene) heat shrink tube, and relates to the field of FEP heat shrink tube cutting devices, the clamping and cutting device for the FEP heat shrink tube comprises a base, and the base is composed of two bottom strips arranged in parallel and located below and a top plate fixed on the top surfaces of the two bottom strips; according to the clamping and cutting device for the FEP heat shrink tube, due to the arrangement of the vertical plate, the surrounding plate, the scraping plate and other structures, a program can be automatically set, residual glue on the surface of an electric heating cutting wire can be automatically removed when the device is shut down, manual cleaning is not needed, the balance of scraping force during cleaning is guaranteed, damage to the electric heating cutting wire is reduced, and the working efficiency is improved. And manpower is saved, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of FEP heat shrink tubing cutting devices, and more particularly to a clamping and cutting device for FEP heat shrink tubing. Background Technology

[0002] FEP resin granules are melted, extruded at low temperature and low speed, cooled and shaped, and then pulled to the cutting equipment for cutting. The cut base tubes are then inflated using an inflator.

[0003] In the cutting process, existing technologies typically use electrically heated cutting wires for melting and cutting. This type of cutting tends to leave adhesive residue on the outer wall of the electrically heated cutting wire. Traditional technology requires manual removal of this residue by using a scraper tool along the outer surface of the electrically heated cutting wire after the wire has cooled down during machine maintenance. Manual operation makes it difficult to ensure even force during scraping, which can easily damage the electrically heated cutting wire. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a clamping and cutting device for FEP heat shrink tubing, which solves the problem that manually removing impurities from the outer surface of the electric heating cutting wire in traditional technologies can easily damage the electric heating cutting wire.

[0005] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0006] A clamping and cutting device for FEP heat shrink tubing includes a base, a bracket fixed to one corner of the base, a first linear motor fixed to one side of the outer wall of the bracket, a bearing frame fixed to the moving end of the first linear motor, an electrically heated cutting wire fixed to the inner wall of the open opening of the bearing frame, and the electrically heated cutting wire being located directly above the base.

[0007] A clamping assembly is installed on the top surface of the base directly below the electric heating cutting wire. The clamping assembly is used to clamp the FER heat shrink tubing to be cut. A cleaning assembly is fixed on the inner wall of the support frame. The cleaning assembly is used to clean the impurities remaining on the electric heating cutting wire.

[0008] Preferably, a crossbeam is fixed to the open inner wall of the bearing frame, and the length direction of the crossbeam is parallel to the length direction of the electrically heated cutting wire.

[0009] Preferably, the clamping assembly includes two clamping plates symmetrically arranged below the support frame with the center line of the support frame as the axis of symmetry. Both clamping plates are slidably arranged on the top surface of the base. The upper end of the clamping plate forms a semi-circular cavity for accommodating FEP heat shrink tubing. The opposite sides of the two clamping plates are connected to the extension end of the guide rod cylinder. The guide rod cylinder is fixed on the top surface of the base. The middle part of the clamping plate forms a clearance groove for avoiding the electric heating cutting wire.

[0010] Preferably, the base consists of two parallel bottom strips located below and a top plate fixed to the top surface of the two bottom strips, a bracket fixed to the end of one of the bottom strips, a guide rod cylinder fixed to the top surface of the top plate, and a clamping plate slidably disposed on the top surface of the top plate.

[0011] Preferably, the top plate is located directly below the support frame, and the width of the top plate is less than the length of the opening of the support frame.

[0012] Preferably, the cleaning assembly includes a second linear motor fixed to the side of the crossarm near the electric heating cutting wire, a vertical plate fixed to the moving end of the second linear motor, and a through hole formed at the end of the vertical plate opposite to the second linear motor, through which the electric heating cutting wire passes.

[0013] A surrounding plate is provided on one side of the upright plate near the perforation. A scraper is connected to the surrounding plate by an elastic connector. The elastic connector ensures that the scraper is always in contact with the outer wall of the electrically heated cutting wire. A rotating assembly is provided on one side of the upright plate near the scraper. The rotating assembly is used to drive the surrounding plate to rotate around the axis of the perforation.

[0014] Preferably, the elastic connector includes a push rod slidably connected to the end of the surrounding plate through a sliding hole. The axis of the push rod is perpendicular to the axis of the electrically heated cutting wire. The scraper is fixed to the end of the push rod. A spring is sleeved on the end of the push rod away from the scraper. One end of the spring is fixed to the outer wall of the push rod, and the other end of the spring is fixed to the outer wall of the surrounding plate.

[0015] Preferably, the rotating assembly includes a motor fixed to one end of the upright plate near the perforation, the output end of the motor being fixed with a drive gear through the upright plate, and a gear ring being rotatably connected to the side of the upright plate near the perforation and the surrounding plate via a bearing, the axis of the gear ring coinciding with the axis of the perforation, the gear ring meshing with the drive gear, and the surrounding plate being fixed to the outer wall of the gear ring.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] This utility model, with its structure including a vertical plate, a surrounding plate, and a scraper, can automatically set a program to clean the residual adhesive on the surface of the electric heating cutting wire when the equipment stops, eliminating the need for manual cleaning. This ensures even scraping force during cleaning, reduces damage to the electric heating cutting wire, saves manpower, and is easy to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 For the present utility model Figure 1 Enlarged diagram of point A.

[0020] Figure 3 This is a schematic diagram showing the positional relationship between the scraper and the upright plate of this utility model.

[0021] Reference numerals: 1. Base; 101. Bottom strip; 102. Top plate; 2. Bracket; 3. First linear motor; 4. Bearing frame; 401. Opening; 5. Electric heating cutting wire; 6. Crossbeam; 7. Clamping plate; 701. Semi-circular cavity; 702. Clearance groove; 8. Second linear motor; 9. Vertical plate; 901. Perforation; 10. Surrounding plate; 11. Push rod; 12. Scraper; 13. Spring; 14. Motor; 15. Drive gear; 16. Gear ring; 17. Guide rod cylinder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 3 This embodiment provides a clamping and cutting device for FEP heat shrink tubing, including a base 1. The base 1 consists of two parallel bottom strips 101 located below and a top plate 102 fixed to the top surface of the two bottom strips 101. A bracket 2 is fixed to the end of one of the bottom strips 101. A first linear motor 3 is fixed to the outer wall of one side of the bracket 2. A bearing frame 4 is fixed to the moving end of the first linear motor 3. The bearing frame 4 is inclined. The opening 401 end of the bearing frame 4 is located at the lower end of the bearing frame 4. The top plate 102 is located directly below the bearing frame 4, and the width of the top plate 102 is less than the length of the opening 401 of the bearing frame 4. An electric heating cutting wire 5 is fixed to the inner wall of the opening 401 of the bearing frame 4, and the electric heating cutting wire 5 is located directly above the base 1. A crossbeam 6 is fixed to the inner wall of the opening 401 of the bearing frame 4. The length direction of the crossbeam 6 is parallel to the length direction of the electric heating cutting wire 5.

[0024] By driving the first linear motor 3 to work, the moving end of the first linear motor 3 drives the carrier frame 4 to move down until the FEP heat shrink tubing is inside the opening 401 of the carrier frame 4. At this time, the hot cutting wire of the motor 14 can directly melt and cut the FEP heat shrink tubing.

[0025] Two clamping plates 7 are symmetrically arranged below the support frame 4 with the center line of the support frame 4 as the axis of symmetry. Both clamping plates 7 are slidably arranged on the top surface of the base 1. The upper end of the clamping plate 7 forms a semi-circular cavity 701 for accommodating the FEP heat shrink tubing. The two clamping plates 7 are connected to the extended end of the guide rod cylinder 17 on opposite sides. The guide rod cylinder 17 is fixed on the top surface of the base 1. The middle part of the clamping plate 7 forms a relief groove 702 for avoiding the electric heating cutting wire 5.

[0026] After the FEP heat shrink tubing is extruded, cooled, and shaped, it is pulled to the cutting equipment by the traction device, so that the heat shrink tubing passes between the two semi-circular cavities 701 of the two substrates. When cutting is required, the two guide rod cylinders 17 are driven to extend simultaneously, so that the two clamping plates 7 close, and the two semi-circular cavities 701 form a complete and seamless cylindrical chamber to hold the heat shrink tubing. Then, the first linear motor 3 is driven to work and drive the electrically heated cutting wire 5 to descend, pass through the clearance groove 702, and cut the heat shrink tubing.

[0027] A second linear motor 8 is fixed on the side of the crossarm 6 near the electric heating cutting wire 5. A vertical plate 9 is fixed on the moving end of the second linear motor 8. A through hole 901 is formed on the end of the vertical plate 9 away from the second linear motor 8. The electric heating cutting wire 5 passes through the through hole 901.

[0028] A surrounding plate 10 is provided on one side of the upright plate 9 near the end of the through hole 901. A push rod 11 is slidably connected to the end of the surrounding plate 10 through a sliding hole. The axis of the push rod 11 is perpendicular to the axis of the electric heating cutting wire 5. A scraper 12 is fixed to one end of the push rod 11 near the electric heating cutting wire 5. A spring 13 is sleeved on one end of the push rod 11 away from the scraper 12. One end of the spring 13 is fixed to the outer wall of the push rod 11, and the other end of the spring 13 is fixed to the outer wall of the surrounding plate 10. Under the action of the spring 13, the scraper 12 is always in contact with the outer wall of the electric heating cutting wire 5.

[0029] A motor 14 is fixed to one end of the upright plate 9 near the through hole 901. The output end of the motor 14 passes through the upright plate 9 and is fixed to the drive gear 15. The output end of the motor 14 is rotatably connected to the upright plate 9. A gear ring 16 is rotatably connected to the side of the upright plate 9 near the through hole 901 and near the side of the surrounding plate 10 via a bearing. The axis of the gear ring 16 coincides with the axis of the through hole 901. The gear ring 16 meshes with the drive gear 15. The surrounding plate 10 is fixed to the outer wall of the gear ring 16.

[0030] When cleaning is required, the support frame 4 is raised to its highest height, and then the second linear motor 8 is driven to work, which moves the upright plate 9 from one end of the electric heating cutting wire 5 to the other end. This is repeated multiple times. During each movement, the motor 14 works continuously, driving the drive gear 15 to rotate and the gear ring 16 to rotate, so that the surrounding plate 10 rotates around the outside of the electric heating cutting wire 5, allowing the scraper 12 to scrape 360 ​​degrees on the outside of the electric heating cutting wire 5. It should be emphasized that when the electric heating cutting wire 5 is lowered to the lowest position to complete the cutting work, it is necessary to ensure that the upright plate 9 is located at one end of the electric heating cutting wire 5. During the cutting, both the upright plate 9 and the surrounding plate 10 are located on one side of the top plate 102 and will not obstruct the top plate 102.

[0031] This automatic process removes residual adhesive without manual intervention, ensuring even scraping force, reducing damage to the electrically heated cutting wire 5, and saving manpower.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping and cutting device for FEP heat-shrinkable tube, comprising a base (1), one corner of the base (1) is fixed with a support (2), characterized in that, The first linear motor (3) is fixed on one side of the outer wall of the support (2), the moving end of the first linear motor (3) is fixed with a bearing frame (4), the inner wall of the open mouth (401) of the bearing frame (4) is fixed with an electric heating cutting wire (5), and the electric heating cutting wire (5) is located directly above the base (1); The top surface of the base (1) is located directly below the electric heating cutting wire (5) and is provided with a clamping assembly for clamping the FEP heat shrink tube to be cut, and the inner wall of the bearing frame (4) is fixed with a cleaning assembly for cleaning the impurities remaining on the electric heating cutting wire (5).

2. The clamping and cutting apparatus for FEP heat-shrinkable tube according to claim 1, wherein The inner wall of the open mouth (401) of the bearing frame (4) is fixed with a cross arm (6), and the length direction of the cross arm (6) is parallel to the length direction of the electric heating cutting wire (5).

3. The clamping and cutting apparatus for FEP heat shrink tube according to claim 1, wherein The clamping assembly comprises two clamping plates (7) symmetrically arranged below the bearing frame (4) with the center line of the bearing frame (4) as the axis of symmetry, both of the two clamping plates (7) are slidingly arranged on the top surface of the base (1), the upper end of the clamping plate (7) forms a semicircular cavity (701) for accommodating the FEP heat shrink tube, the side of each of the two clamping plates (7) away from each other is connected with the extending end of a guide rod air cylinder (17), the guide rod air cylinder (17) is fixed on the top surface of the base (1), and the middle part of the clamping plate (7) forms an avoiding groove (702) for avoiding the electric heating cutting wire (5).

4. The clamping and cutting apparatus for FEP heat shrink tube according to claim 3, characterized by, The base (1) is composed of two parallel bottom strips (101) located below and a top plate (102) fixed on the top surfaces of the two bottom strips (101), the support (2) is fixed on the end of one of the bottom strips (101), the guide rod air cylinder (17) is fixed on the top surface of the top plate (102), and the clamping plate (7) is slidingly arranged on the top surface of the top plate (102).

5. The clamping and cutting apparatus for FEP heat shrink tube according to claim 4, characterized by, The top plate (102) is located directly below the bearing frame (4), and the width of the top plate (102) is less than the length of the open mouth (401) of the bearing frame (4).

6. The clamping and cutting apparatus for FEP heat shrink tube according to claim 2, wherein The cleaning assembly comprises a second linear motor (8) fixed on one side of the cross arm (6) close to the electric heating cutting wire (5), the moving end of the second linear motor (8) is fixed with a vertical plate (9), one end of the vertical plate (9) away from the second linear motor (8) forms a through hole (901), and the electric heating cutting wire (5) passes through the through hole (901); One side of the vertical plate (9) close to the through hole (901) is provided with a surrounding plate (10), the surrounding plate (10) is connected with a scraper (12) through an elastic connecting piece, the elastic connecting piece makes the scraper (12) always abut against the outer wall of the electric heating cutting wire (5), and one end of the vertical plate (9) close to the scraper (12) is provided with a rotating assembly for driving the surrounding plate (10) to rotate around the axis of the through hole (901).

7. The clamping and cutting apparatus for FEP heat shrink tube according to claim 6, wherein The elastic connecting piece comprises a push rod (11) connected with the end of the surrounding plate (10) through a sliding hole, the axis of the push rod (11) is perpendicular to the axis of the electric heating cutting wire (5), the scraper (12) is fixed with the end of the push rod (11), a spring (13) is sleeved with the end of the push rod (11) away from the scraper (12), one end of the spring (13) is fixed with the outer wall of the push rod (11), and the other end of the spring (13) is fixed with the outer wall of the surrounding plate (10).

8. The clamping and cutting apparatus for FEP heat shrink tube according to claim 7, characterized by, The rotating assembly comprises a motor (14) fixed on the stand plate (9) near one end of the through hole (901), the output end of the motor (14) is fixed with a driving gear (15) penetrating through the stand plate (9), one side of the stand plate (9) near one end of the through hole (901) and close to the surrounding plate (10) is rotatably connected with a gear ring (16) through a bearing, the axis of the gear ring (16) coincides with the axis of the through hole (901), the gear ring (16) is in meshing connection with the driving gear (15), and the surrounding plate (10) is fixed on the outer wall of the gear ring (16).

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