Negative-pressure tube expanding equipment for heat shrink tube

Abstract

The utility model discloses heat shrink tube negative-pressure tube expanding equipment, and relates to the technical field of heat shrink tube production, the heat shrink tube negative-pressure tube expanding equipment comprises a box body, heating assemblies installed on the two sides of the box body and a driving assembly fixed on the top of the box body, the two heating assemblies are symmetrically arranged on the outer wall of the box body, and each heating assembly comprises a driving plate; the outer walls of the two sides of the box body are each provided with a rectangular opening for sliding installation of the driving plate, the outer wall of one side of the driving plate is fixedly connected with an arc-shaped plate, and the arc-shaped plate is located in the box body. The two heating assemblies are arranged in the box body, a plurality of infrared heaters are conveniently installed through the arrangement of the arc-shaped plates in the heating assemblies, the two arc-shaped plates in the two heating assemblies can heat a heat shrink tube in a large range, the two heating assemblies are matched with the driving assembly to do reciprocating motion conveniently, and the heat shrink tube can be heated conveniently. Therefore, the heat shrink tube can be conveniently and uniformly heated, and the problem that the heat shrink tube is not uniformly heated by the existing negative-pressure tube expanding device is solved.

Description

Technical Field

[0001] The present application relates to the technical field of heat shrinkable tube production, and in particular to a negative pressure tube expanding device for heat shrinkable tubes. Background Art

[0002] Heat shrinkable materials utilize the shape memory function of polymer materials, that is, a semi-crystalline polymer processed into a certain shape is cross-linked by high-energy ray irradiation, heated above the melting point, deformed to the required shape under the action of an external force, and then cooled and shaped. When in use, it is heated above the melting point again and returns to the shape before deformation. Currently, the most widely used heat shrinkable product is the heat shrinkable tube.

[0003] After retrieval, a patent with the Chinese patent publication number CN206856000U discloses a negative pressure tube expanding machine for heat shrinkable tubes, including a heating box, a sizing tube, a cooling chamber, and a vacuum chamber. One end of the sizing tube is communicated with the heating box. The heating box includes a box body, and a heating device is installed in the box body. The heating device includes two parallel racks arranged in the up and down direction, a gear meshing with the two racks, and a driving mechanism. A far-infrared heater is installed on the rack.

[0004] The above-mentioned negative pressure tube expanding machine for heat shrinkable tubes in the above patent has the following deficiencies: The above patent heats the heat shrinkable tube by setting two slidable racks on the box body and installing an infrared heater on the rack. However, during the operation, the heat shrinkable tube is a cylindrical structure as a whole, and the two racks are located on the same surface of the box body, which can only heat a part of the heat shrinkable tube, thus causing the problem of uneven heating of the heat shrinkable tube. Summary of the Utility Model

[0005] In order to improve the problem of uneven heating of the heat shrinkable tube by the existing tube expanding device, the present application provides a negative pressure tube expanding device for heat shrinkable tubes.

[0006] The present application provides a negative pressure tube expanding device for heat shrinkable tubes, including a box body, heating components installed on both sides of the box body, and a driving component fixed on the top of the box body. The two heating components are symmetrically arranged on the outer wall of the box body. The heating component includes a driving plate. Rectangular openings for slidably installing the driving plate are provided on the outer walls of both sides of the box body. One side outer wall of the driving plate is fixedly connected with an arc plate, and the arc plate is located inside the box body. A plurality of infrared heaters are fixedly connected to the outer wall of the arc plate at equal intervals.

[0007] With the above structure, two heating components are provided on the box body to facilitate heating the heat shrinkable rod in the box body. The setting of the driving component facilitates directly driving the two heating components to reciprocate, thereby facilitating uniform heating of the heat shrinkable tube. The setting of the arc plate facilitates the installation of more infrared heaters, thereby expanding the heating area of the heat shrinkable tube, and the setting of the arc plate fits the heat shrinkable tube better.

[0008] The heating component further includes two connecting seats, and the two connecting seats are fixedly connected to the outer wall of the box body.

[0009] With the above structure, the heating component can be conveniently installed on the outer wall of the box body through the arrangement of the connecting seats.

[0010] On the outer walls of the opposite sides of the two connecting seats, the same sliding rod is fixedly connected, and a sliding seat is slidably connected to the outer wall of the sliding rod. The sliding seat is fixedly connected to the driving plate.

[0011] With the above structure, the sliding rod can be conveniently installed through the arrangement of the connecting seats. The sliding seat is convenient for sliding installation on the sliding rod, and the arrangement of the sliding seat is convenient for driving the driving plate to reciprocate in the box body.

[0012] The driving component includes two slide rails fixedly connected to the outer wall of the top of the box body, and the two slide rails are symmetrically arranged on the box body.

[0013] With the above structure, the two slide rails can be conveniently installed and fixed through the arrangement of the box body.

[0014] Two L-shaped plates are slidably connected to each of the two slide rails, and one ends of the four L-shaped plates are respectively fixedly connected to the two driving plates.

[0015] With the above structure, the four L-shaped plates can be conveniently slid through the arrangement of the two slide rails. When the L-shaped plates slide, it is convenient to directly drive the driving plate to move, and thus it is convenient to drive the arc-shaped plate to move.

[0016] Two symmetrically arranged racks are fixedly connected to the outer walls of the tops of the four L-shaped plates. The driving component further includes a fixed frame fixedly connected to the outer wall of the top of the box body.

[0017] With the above structure, the two racks can be conveniently installed through the arrangement of the L-shaped plates, and by driving the movement of the racks, the L-shaped plates can be directly driven to move.

[0018] A gear is rotatably connected to the outer wall of the bottom of the fixed frame, and the gear meshes with the two racks.

[0019] With the above structure, the two racks can be conveniently synchronized through the arrangement of the gear, and thus it is convenient to drive the two arc-shaped plates to move synchronously.

[0020] An electric telescopic rod is fixedly connected to the outer wall of the fixed frame, and the output shaft of the electric telescopic rod is fixedly connected to one of the racks. A sizing tube is fixedly connected to the inner wall of the box body.

[0021] With the above structure, one rack is driven to move by the electric telescopic rod, and in cooperation with the gear, it is convenient to synchronize the two racks.

[0022] In summary, the beneficial effects of the present application are as follows:

[0023] 1. In the present application, two heating components are arranged in the box body. The arrangement of the arc-shaped plates in the heating components facilitates the installation of multiple infrared heaters. The two arc-shaped plates in the two heating components can heat the heat shrinkable tube in a relatively large range, and in cooperation with the driving component, it is convenient to reciprocate the two heating components, thereby facilitating the uniform heating of the heat shrinkable tube, solving the problem of uneven heating of the heat shrinkable tube by the existing negative pressure pipe expanding device.

[0024] 2. In the present application, a gear and two racks are arranged in the driving component. The connection of the gear facilitates the synchronous movement of the two racks, and the setting of the electric telescopic rod facilitates driving the rack to move. When the rack moves, it is convenient to directly drive the two heating components to reciprocate through the two L-shaped plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall schematic diagram of the present application;

[0026] Figure 2 is the schematic diagram of the driving component of the present application;

[0027] Figure 3 is the schematic diagram of the heating component of the present application;

[0028] Figure 4 is one of the schematic diagrams of the arc-shaped plate of the present application;

[0029] Figure 5 is the second schematic diagram of the arc-shaped plate of the present application.

[0030] Description of the reference numerals: 1, box body; 2, sizing tube; 3, heating component; 4, rectangular opening; 5, driving component; 6, slide rail; 7, L-shaped plate; 8, rack; 9, electric telescopic rod; 10, fixing frame; 11, gear; 12, connecting seat; 13, slide bar; 14, sliding seat; 15, driving plate; 16, arc-shaped plate; 17, infrared heater. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will further describe the present application in detail with reference to the attached Figures 1-4 drawings.

[0032] Please refer to Figures 1-3 , a heat shrinkable tube negative pressure pipe expanding device, including a box body 1, heating components 3 installed on both sides of the box body 1, and a driving component 5 fixed on the top of the box body 1. The two heating components 3 are symmetrically arranged on the outer wall of the box body 1. The heating component 3 includes a driving plate 15. Rectangular openings 4 for the sliding installation of the driving plate 15 are provided on the outer walls of both sides of the box body 1. One side outer wall of the driving plate 15 is fixedly connected with an arc-shaped plate 16, and the arc-shaped plate 16 is located inside the box body 1. A plurality of infrared heaters 17 are fixedly connected to the outer wall of the arc-shaped plate 16 at equal intervals.

[0033] During use, two heating components 3 are arranged on the box body 1 to facilitate heating the heat shrinkage rod in the box body 1. The arrangement of the driving component 5 facilitates directly driving the two heating components 3 to reciprocate, thereby facilitating uniform heating of the heat shrink tube. The arrangement of the arc-shaped plate 16 facilitates the installation of more infrared heaters 17, thereby expanding the heating area of the heat shrink tube, and the arc-shaped plate 16 is more fitted to the heat shrink tube.

[0034] Refer to Figure 4 , the heating component 3 further includes two connecting seats 12, and the two connecting seats 12 are fixedly connected to the outer wall of the box body 1. The arrangement of the connecting seats 12 facilitates the installation of the heating component 3 on the outer wall of the box body 1.

[0035] Refer to Figure 4 , the outer walls of the opposite sides of the two connecting seats 12 are fixedly connected with the same sliding rod 13, and the outer wall of the sliding rod 13 is slidably connected with a sliding seat 14. The sliding seat 14 is fixedly connected to the driving plate 15. The arrangement of the connecting seats 12 facilitates the installation of the sliding rod 13. The sliding seat 14 is convenient for sliding installation on the sliding rod 13, and the arrangement of the sliding seat 14 facilitates driving the driving plate 15 to reciprocate in the box body 1.

[0036] Refer to Figures 2-3 , the driving component 5 includes two slide rails 6 fixedly connected to the outer wall of the top of the box body 1, and the two slide rails 6 are symmetrically arranged on the box body 1. The arrangement of the box body 1 facilitates the installation and fixation of the two slide rails 6.

[0037] Refer to Figure 2 and Figure 3 , two L-shaped plates 7 are slidably connected to each of the two slide rails 6, and one ends of the four L-shaped plates 7 are respectively fixedly connected to the two driving plates 15. The arrangement of the two slide rails 6 facilitates the sliding of the four L-shaped plates 7. When the L-shaped plates 7 slide, it is convenient to directly drive the driving plates 15 to move, and thus it is convenient to drive the arc-shaped plate 16 to move.

[0038] Refer to Figures 2-3 , the outer walls of the tops of the four L-shaped plates 7 are fixedly connected with two symmetrically arranged racks 8. The driving component 5 further includes a fixing frame 10 fixedly connected to the outer wall of the top of the box body 1. The arrangement of the L-shaped plates 7 facilitates the installation of the two racks 8, and by driving the movement of the racks 8, the L-shaped plates 7 can be directly driven to move.

[0039] Refer to Figures 2-3 , a gear 11 is rotatably connected to the bottom outer wall of the fixing frame 10, and the gear 11 meshes with the two racks 8. The arrangement of the gear 11 facilitates the synchronous movement of the two racks 8, and thus facilitates the synchronous movement of the two arc-shaped plates 16.

[0040] Refer to Figures 1-3, an electric telescopic rod 9 is fixedly connected to the outer wall of the fixing frame 10, and the output shaft of the electric telescopic rod 9 is fixedly connected to one of the racks 8. A sizing tube 2 is fixedly connected to the inner wall of the box body 1. By driving one rack 8 to move through the electric telescopic rod 9 and cooperating with the gear 11, it is convenient to make the two racks 8 move synchronously.

[0041] The implementation principle of this application is as follows: When in use, when the heat shrinkable tube enters the sizing tube 2, the infrared heaters 17 in the two heating components 3 are started. The infrared heaters 17 can directly heat the heat shrinkable tube. When the driving component 5 is started, the electric telescopic rod 9 directly pushes one of the racks 8 to move. When the rack 8 moves, it directly drives the two L-shaped plates 7 to drive the driving plate 15 to move. When the driving plate 15 moves, it directly drives the arc-shaped plate 16 to move. The gear 11 arranged between the two racks 8 facilitates the synchronous movement of the two racks 8, and further facilitates driving the two arc-shaped plates 16 to reciprocate in the box body 1 to heat the heat shrinkable tube comprehensively.

[0042] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A heat shrink tube negative pressure expansion device, comprising a box (1), a heating assembly (3) mounted on both sides of the box (1), and a driving assembly (5) fixed on the top of the box (1), characterized in that: The two heating components (3) are symmetrically arranged on the outer wall of the box (1), and the heating components (3) include a driving plate (15). The outer walls on both sides of the box (1) are provided with rectangular openings (4) for slidingly installing the driving plate (15). An arc plate (16) is fixedly connected to the outer wall of one side of the driving plate (15), and the arc plate (16) is located inside the box (1). The outer wall of the arc plate (16) is fixedly connected to a plurality of infrared heaters (17) distributed at equal distances.

2. The heat shrink tube negative pressure expansion device according to claim 1, characterized in that: The heating assembly (3) further comprises two connecting seats (12), and the two connecting seats (12) are fixedly connected to the outer wall of the box body (1).

3. A heat shrink tube negative pressure expansion device according to claim 2, characterized in that: The outer walls of the two connecting seats (12) on opposite sides are fixedly connected to a same sliding rod (13), and the outer wall of the sliding rod (13) is slidably connected to a sliding seat (14), and the sliding seat (14) is fixedly connected to the driving plate (15).

4. The negative pressure expansion device for heat shrinkable tube according to claim 3, characterized in that: The driving assembly (5) comprises two slide rails (6) fixedly connected to the top outer wall of the box body (1), and the two slide rails (6) are symmetrically arranged on the box body (1).

5. The heat shrink tube negative pressure expansion device according to claim 4, characterized in that: Two L-shaped plates (7) are slidably connected to the two slide rails (6), and one end of the four L-shaped plates (7) is respectively fixedly connected to the two drive plates (15).

6. The heat shrink tube negative pressure expansion device according to claim 5, characterized in that: Two symmetrically arranged racks (8) are fixedly connected to the top outer walls of the four L-shaped plates (7), and the drive assembly (5) further comprises a fixing frame (10) fixedly connected to the top outer wall of the box body (1).

7. The heat shrink tube negative pressure expansion device according to claim 6, characterized in that: A gear (11) is rotatably connected to the outer wall of the bottom of the fixing frame (10), and the gear (11) and the two racks (8) are meshed with each other.

8. The heat shrink tube negative pressure expansion device according to claim 7, characterized in that: An electric telescopic rod (9) is fixedly connected to the outer wall of the fixing frame (10), and an output shaft of the electric telescopic rod (9) is fixedly connected to one of the racks (8). A sizing tube (2) is fixedly connected to the inner wall of the box body (1).

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