A seamless heat-shrinkable sleeve quantitative pre-cutting device

Abstract

The utility model relates to the technical field of seamless heat shrinkable sleeve cutting, specifically relates to a kind of seamless heat shrinkable sleeve quantitative pre-cutting device, including support leg, the top of support leg is fixedly connected with flat plate, symmetrically fixedly connected with support in the middle of flat plate top, the inside rotationally connected with carousel of support, the outside of carousel is symmetrically provided with recess, one end of recess is provided with accommodating groove, the inside of recess is symmetrically rotationally connected with guide rod, one end of guide rod is fixedly connected with extension rod, the end of two groups extension rod close is fixedly connected with blade, wherein the outside of one group support is fixedly connected with first motor, the output of first motor is fixedly connected with carousel through support, compared with the quantitative pre-cutting device of existing seamless heat shrinkable sleeve, the design of protruding block and blade can quickly complete the cutting of sleeve, and guarantee cut smooth.

Description

Technical Field

[0001] This utility model relates to the field of seamless heat shrink tubing cutting technology, specifically to a quantitative pre-cutting device for seamless heat shrink tubing. Background Technology

[0002] Heat shrink tubing is a new type of environmentally friendly, halogen-free, flame-retardant tubing that provides insulation protection for wires, cables, and wire terminals. It is widely used for insulation protection of wire harnesses, solder joints, and inductors, as well as for rust and corrosion prevention of metal tubes and rods. During the processing of heat shrink tubing, a quantitative pre-cutting device is required to cut the heat shrink tubing.

[0003] Traditional technology involves designing a conveyor belt with a set of knife gates installed in the middle. The conveyor belt transports the sleeve to the area below the knife gates, and then the knife gates are controlled to descend, cutting the sleeve. The speed of the conveyor belt determines the quantitative cutting. However, when the knife gates cut from above, the single-blade design of the knife gates may result in uneven cuts. Additionally, when the knife gates press down, the sleeve may shift under pressure, leading to inconsistent cut lengths.

[0004] Therefore, it is particularly important to improve the existing seamless heat shrink tubing quantitative pre-cutting device, design a new seamless heat shrink tubing quantitative pre-cutting device to solve the above-mentioned technical defects, and improve the overall practicality of the seamless heat shrink tubing quantitative pre-cutting device. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a quantitative pre-cutting device for seamless heat shrink tubing, which aims to solve the problems of uneven cuts and displacement caused by pressure when the tubing is cut by a guillotine in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A seamless heat shrink tubing quantitative pre-cutting device includes a support leg, a plate fixedly connected to the top of the support leg, a bracket symmetrically fixedly connected to the middle of the top of the plate, a turntable rotatably connected inside the bracket, grooves symmetrically formed on the outer side of the turntable, a receiving groove formed at one end of the groove, guide rods symmetrically rotatably connected inside the groove, an extension rod fixedly connected to one end of the guide rod, and a blade fixedly connected to the adjacent ends of the two sets of extension rods.

[0008] In a preferred embodiment of this utility model, a first motor is fixedly connected to the outside of one set of brackets, the output end of the first motor passes through the bracket and is fixedly connected to the turntable, and a spring is fixedly connected between the two sets of guide rods.

[0009] As a preferred embodiment of this utility model, a protrusion is fixedly connected to one end of each of the two sets of extension rods that are far apart. One side of the protrusion has a beveled structure design, and a compression wheel is rotatably connected to the top of the bracket at a position corresponding to the protrusion.

[0010] As a preferred embodiment of this utility model, a fixed plate is fixedly connected to both the left and right ends of the top of the plate, and a first ring is rotatably connected inside the fixed plate. A second ring is fixedly connected to the end of the first ring away from the fixed plate.

[0011] As a preferred embodiment of this utility model, the second ring is rotatably connected to a positioning frame on the side near the first ring, and a pressing rod is slidably connected inside the positioning frame, with an auxiliary wheel rotatably connected to one end of the pressing rod.

[0012] As a preferred embodiment of this utility model, the end of the extrusion rod away from the auxiliary wheel is rotatably connected to a fixed column, and the fixed column extends into the interior of the fixed disk and is rotatably connected to the fixed disk.

[0013] As a preferred embodiment of this utility model, an installation block is fixedly connected to the outside of the first collar, a lead screw is rotatably connected to the inside of the installation block, a threaded sleeve is threadedly connected to the outside of the lead screw, the threaded sleeve is rotatably connected to the outer wall of the first collar, a second motor is rotatably connected to the outside of the fixed disk and at the end of the lead screw away from the installation block, one end of the lead screw is fixedly connected to the output end of the second motor, and a track is fixedly connected between the turntable and the fixed disk.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, by passing the sleeve through the inside of the fixed plate, the space between the first and second collars is reduced by the amplitude of the swing of the extrusion rod, which is suitable for auxiliary clamping of sleeves of different sizes, ensuring the stability of the sleeve during the cutting process.

[0016] The turntable rotates while the receiving groove rubs against the outer wall of the seamless heat shrink tubing. The rotational force is then transmitted to the tubing, allowing it to move horizontally within the receiving groove. The protrusions are squeezed by the extrusion rollers, which compress the spring. At this point, the blades move closer together and cut the tubing. Two sets of blades are designed to ensure a clean cut. The cutting length is adjusted by controlling the speed of the first motor. When the speed is stable, the quantitative cutting is completed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the turntable structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the fixed disk structure of this utility model.

[0021] In the diagram: 1. Support leg; 2. Flat plate; 3. Bracket; 4. Turntable; 5. Groove; 6. Receiving groove; 7. Guide rod; 8. Extension rod; 9. Blade; 10. Spring; 11. Protrusion; 12. Extrusion wheel; 13. Fixed plate; 14. First collar; 15. Second collar; 16. Positioning frame; 17. Extrusion rod; 18. Fixed column; 19. Lead screw; 20. Threaded sleeve; 21. Second motor; 22. Track. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figures 1-4 This utility model provides a technical solution:

[0024] A pre-cutting device for seamless heat shrink tubing includes a support leg 1, a plate 2 fixedly connected to the top of the support leg 1, a bracket 3 symmetrically fixedly connected to the middle of the top of the plate 2, a turntable 4 rotatably connected inside the bracket 3, grooves 5 symmetrically formed on the outer side of the turntable 4, a receiving groove 6 formed at one end of the groove 5, guide rods 7 symmetrically rotatably connected inside the grooves 5, extension rods 8 fixedly connected to one end of the guide rods 7, and blades 9 fixedly connected to the near ends of the two sets of extension rods 8. The device allows for the pre-cutting of seamless heat shrink tubing by placing the plate 2 in a designated position and then pre-cutting the tubing. The sleeve is mounted on the outside of the turntable 4. The turntable 4 is then rotated, and the receiving groove 6 rubs against the outer wall of the seamless heat shrink sleeve. At this time, the rotational force is transmitted to the sleeve, so that the sleeve moves inside the receiving groove 6. Meanwhile, the groove 5 rotates. When it needs to be cut, the two sets of guide rods 7 are pushed from the outside. At this time, the two sets of guide rods 7 move in the same direction. At the same time, the extension rod 8 moves in the same direction. At this time, the blades 9 move closer to each other and cut the sleeve. The design of two sets of blades 9 achieves a flat cut.

[0025] Furthermore, in this embodiment, a first motor is fixedly connected to the outside of one of the brackets 3. The output end of the first motor passes through the bracket 3 and is fixedly connected to the turntable 4. A spring 10 is fixedly connected between the two sets of guide rods 7. A protrusion 11 is fixedly connected to the far ends of the two sets of extension rods 8. One side of the protrusion 11 has a sloping structure design. A pressing wheel 12 is rotatably connected to the top of the bracket 3 at the position corresponding to the protrusion 11. As the turntable 4 rotates, the protrusion 11 is pressed by the pressing wheel 12. Subsequently, the protrusions 11 move closer to each other and compress the spring 10. By controlling the speed of the first motor, the cutting length can be adjusted. When the speed is stable, the quantitative cutting is completed.

[0026] Furthermore, in this embodiment, fixed disks 13 are fixedly connected to both the left and right ends of the top of the plate 2. A first collar 14 is rotatably connected inside the fixed disk 13. A second collar 15 is fixedly connected to the end of the first collar 14 away from the fixed disk 13. A positioning frame 16 is rotatably connected to the side of the second collar 15 close to the first collar 14. A pressing rod 17 is slidably connected inside the positioning frame 16. An auxiliary wheel is rotatably connected to one end of the pressing rod 17. By passing the sleeve through the inside of the fixed disk 13, it extends out from the inside of the first collar 14 and the second collar 15 in sequence. At this time, the pressing rod 17 is swung to bring them closer together. At the same time, the positioning frame 16 limits it, so that it moves along a predetermined path. Then the pressing rod 17 contacts the sleeve. By the amplitude of the swing of the pressing rod 17, the space between the first collar 14 and the second collar 15 is reduced, which is suitable for assisting the clamping of sleeves of different sizes, ensuring the stability of the sleeve during the cutting work. The auxiliary wheel assists the outer wall of the sleeve to slide.

[0027] Furthermore, in this embodiment, the end of the extrusion rod 17 away from the auxiliary wheel is rotatably connected to a fixed post 18. The fixed post 18 extends into the interior of the fixed disk 13 and is rotatably connected to the fixed disk 13. By moving one end of the extrusion rod 17 along the fixed post 18, and then rotating the fixed post 18, the amplitude of the swing of the extrusion rod 17 can be adjusted.

[0028] Furthermore, in this embodiment, a mounting block is fixedly connected to the outside of the first collar 14, and a lead screw 19 is rotatably connected inside the mounting block. A threaded sleeve 20 is threadedly connected to the outside of the lead screw 19, and the threaded sleeve 20 is rotatably connected to the outer wall of the first collar 14. A second motor 21 is rotatably connected to the outside of the fixed disk 13 and to the end of the lead screw 19 away from the mounting block. One end of the lead screw 19 is fixedly connected to the output end of the second motor 21. A track 22 is fixedly connected between the turntable 4 and the fixed disk 13. The lead screw 19 is rotated by the second motor 21. At this time, the threaded sleeve 20 and the lead screw 19 undergo a threaded reaction. At the same time, the threaded sleeve 20 performs a spiral translational motion outside the lead screw 19, which in turn drives the first collar 14 and the second collar 15 to rotate inside the fixed disk 13. Meanwhile, the second motor 21 adjusts the angle accordingly to facilitate smooth operation of the lead screw 19. Through the design of the track 22, the cut sleeve is pushed by the subsequent uncut sleeve.

[0029] In this embodiment, the specific implementation scenario is as follows: The plate 2 is placed at a designated position, and the sleeve is passed through the interior of the fixed disk 13, extending sequentially from the interior of the first collar 14 and the second collar 15 to the exterior of the turntable 4. Driven by the second motor 21, the lead screw 19 rotates. At this time, the threaded sleeve 20 interacts with the lead screw 19, and simultaneously performs a helical translational motion outside the lead screw 19. This, in turn, causes the first collar 14 and the second collar 15 to rotate inside the fixed disk 13. Consequently, the positioning frame 16 drives the pressing rod 17 to swing. The amplitude of the swing of the pressing rod 17 reduces the space between the first collar 14 and the second collar 15, adapting to assist in clamping sleeves of different sizes, ensuring... During the cutting process, the stability of the sleeve is aided by the auxiliary wheel sliding against the outer wall of the sleeve. Then, the turntable 4 rotates, and the receiving groove 6 rubs against the outer wall of the seamless heat shrink sleeve. At this time, the rotational force is transmitted to the sleeve, enabling the sleeve to translate inside the receiving groove 6. Simultaneously, the groove 5 rotates, and the protrusion 11 is squeezed by the extrusion wheel 12. Then, the protrusion 11 moves closer to each other and compresses the spring 10. At this time, the two sets of guide rods 7 move in the same direction, and the extension rod 8 moves closer at the same time. At this time, the blades 9 move closer to each other and cut the sleeve. The design of two sets of blades 9 achieves a flat cut. The cutting length is adjusted by controlling the speed of the first motor. When the speed is stable, the quantitative cutting is completed.

[0030] 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 seamless heat shrink tubing quantitative pre-cutting device, comprising a support leg (1), characterized in that: A plate (2) is fixedly connected to the top of the support leg (1). A bracket (3) is symmetrically fixedly connected to the middle of the top of the plate (2). A turntable (4) is rotatably connected inside the bracket (3). A groove (5) is symmetrically opened on the outer side of the turntable (4). A receiving groove (6) is opened at one end of the groove (5). A guide rod (7) is symmetrically rotatably connected inside the groove (5). An extension rod (8) is fixedly connected to one end of the guide rod (7). A blade (9) is fixedly connected to the end of the two sets of extension rods (8) that are close to each other.

2. The seamless heat shrink tubing quantitative pre-cutting device according to claim 1, characterized in that: The first motor is fixedly connected to the outside of the bracket (3), and the output end of the first motor passes through the bracket (3) and is fixedly connected to the turntable (4). A spring (10) is fixedly connected between the two sets of guide rods (7).

3. The seamless heat shrink tubing quantitative pre-cutting device according to claim 1, characterized in that: The two sets of extension rods (8) are fixedly connected to a protrusion (11) at one end away from each other. One side of the protrusion (11) is designed with a sloping structure. The top of the bracket (3) is rotatably connected to a pressing wheel (12) at the position corresponding to the protrusion (11).

4. The seamless heat shrink tubing quantitative pre-cutting device according to claim 1, characterized in that: The top left and right ends of the plate (2) are fixedly connected to a fixed disk (13). The inside of the fixed disk (13) is rotatably connected to a first collar (14). The end of the first collar (14) away from the fixed disk (13) is fixedly connected to a second collar (15).

5. A seamless heat shrink tubing quantitative pre-cutting device according to claim 4, characterized in that: The second ring (15) is rotatably connected to a positioning frame (16) on the side near the first ring (14). The positioning frame (16) is slidably connected to a pressing rod (17), and one end of the pressing rod (17) is rotatably connected to an auxiliary wheel.

6. The seamless heat shrink tubing quantitative pre-cutting device according to claim 5, characterized in that: The end of the extrusion rod (17) away from the auxiliary wheel is rotatably connected to a fixed column (18), which extends into the interior of the fixed disk (13) and is rotatably connected to the fixed disk (13).

7. The seamless heat shrink tubing quantitative pre-cutting device according to claim 4, characterized in that: An installation block is fixedly connected to the outside of the first collar (14), and a lead screw (19) is rotatably connected inside the installation block. A threaded sleeve (20) is threadedly connected to the outside of the lead screw (19). The threaded sleeve (20) is rotatably connected to the outer wall of the first collar (14). A second motor (21) is rotatably connected to the outside of the fixed disk (13) and at the end of the lead screw (19) away from the installation block. One end of the lead screw (19) is fixedly connected to the output end of the second motor (21). A track (22) is fixedly connected between the turntable (4) and the fixed disk (13).

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