Heating device of heat shrink tube for cable joint protection
By setting a heating fan in the heat shrink tube heating device and a blower of different diameters distributed in sequence along the conveying direction, and selecting a suitable heating fan according to the position of the heat shrink tube, the problem of unnecessary heating cables in the prior art is solved, and the effect of protecting the insulation and performance of the cable is achieved.
Patent Information
- Application Number
- CN202421834431.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-31
AI Technical Summary
During the heating process, existing heat shrink tube heating devices will unnecessarily heat cables that have not been connected to the heat shrink tube, resulting in a change in the insulation state of the cable surface, which may lead to a degradation of cable strength or performance.
A heating device for cable joint protection heat shrink tube is designed. By setting up a heating fan sequentially distributed along the conveying direction of the conveying mechanism, the air outlets of all heating fans are connected to the air outlets, and the diameters of all exhaust tubes are different. The heat shrinking pipe is perpendicular to the conveying direction of the conveying mechanism. The heat shrinking pipe can pass through below all exhaust tubes in sequence. Select a suitable heating fan according to the position of the heat shrinking pipe to avoid deformation of cables that do not need to be baked.
Through this design, the heating fan at the appropriate outlet diameter can be turned on according to the position and model of the heat shrink tube to heat, avoid unnecessary cable deformation and protect the insulation and performance of the cable.
Smart Images
Figure CN222891675U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat shrink tube heating, in particular to a heating device for a heat shrink tube used for protecting a cable joint. Background Art
[0002] With the rapid development of new energy vehicles, the demand for chargers is also increasing. In chargers, a large number of cables are needed, including signal cables and power transmission cables. Various connectors are used to connect different cables and between cables and devices. Because the connector is usually hard and the cable itself is soft, if the cable is bent at the connector, the cable will continue to be squeezed by the connector. If this state is maintained for a long time, it is easy for the insulation to be damaged and broken, and even the core to break, resulting in cable damage. In order to protect the cable, a heat shrink tube can be put on the contact position of the cable and the connector. After the heat shrink tube shrinks, it can tightly wrap around the connector and cable, play a role in supporting the cable, and avoid the cable from being damaged at the connector due to large bending. In addition, when two cables are connected through a connector, the heat shrink tube can also be used to tighten the connector to ensure the stability of the connector connection.
[0003] In the prior art, the heat shrink tube is heated mainly by a dedicated heating device. The heating device mainly includes a belt conveyor for conveying cables and a drying mechanism arranged above the belt conveyor. The drying mechanism mainly includes a hot air blower. During processing, the cables are placed on the belt conveyor. The length direction of the cables is consistent with the conveying direction of the belt conveyor. The cables conveyed by the belt conveyor pass under the hot air blower, and the heat shrink tube is heated by the hot air blown by the hot air blower. In addition to heating the heat shrink tube, the existing heating device also heats the cables passing under the hot air blower. In this process, the wires and cables that are not covered with heat shrink tubes will also be baked, which may cause the state of the surface insulation to change, and then may cause the strength or performance of the cable to decrease. Utility Model Content
[0004] In order to address the deficiencies in the prior art, the utility model provides a heating device for heat shrink tubes for protecting cable joints. The heating device is provided with heating fans distributed in sequence along the conveying direction of a conveying mechanism. The air outlets of all heating fans are connected to air outlet tubes, and the calibers of all air outlet tubes are different. When the conveying mechanism conveys the heat shrink tube, the heat shrink tube is perpendicular to the conveying direction of the conveying mechanism, and the heat shrink tube can pass under all air outlet tubes in sequence. Suitable heating fans are selected according to different positions of the heat shrink tube to avoid deformation of cables that do not need to be baked.
[0005] The utility model adopts the following technical solution to solve the above-mentioned technical problems: a heating device for heat shrink tubes for protecting cable joints, comprising a heating mechanism and a conveying mechanism arranged above and below, the conveying mechanism being used to convey cables and heat shrink tubes sleeved on cable joints, and the heat shrink tubes can enter or leave the heating mechanism, the heating mechanism being fixedly arranged above the conveying mechanism, the heating mechanism comprising a plurality of heating fans distributed in sequence along the conveying direction of the conveying mechanism, the air outlets of all the heating fans being connected to air outlet tubes, and the calibers of all the air outlet tubes being different, and when the conveying mechanism conveys the heat shrink tubes, the heat shrink tubes are perpendicular to the conveying direction of the conveying mechanism, and the heat shrink tubes can pass under all the air outlet tubes in sequence.
[0006] As a further optimization of the heating device of a heat shrink tube for protecting cable joints in the utility model: the heating fan is connected to the air outlet cylinder through an air guide cone cylinder, the small end of the air guide cone cylinder is sealedly connected to the air outlet of the heating fan, and the large end of the air guide cone cylinder is sealedly connected to the air inlet of the air outlet cylinder.
[0007] As a further optimization of the heating device of a heat shrink tube for protecting cable joints in the utility model: the conveying mechanism is configured as a belt conveyor, and a positioning assembly is provided on the conveying belt, the positioning assembly includes two groups of positioning strips fixedly arranged at two edge positions of the conveying belt, the positioning strips in the same group are distributed along the conveying direction of the conveying belt, and an accommodating space is formed between adjacent positioning strips, and the accommodating space is used to accommodate cables.
[0008] As a further optimization of the heating device of a heat shrink tube for protecting a cable joint in the utility model: a first heat dissipation hole is opened on the positioning strip.
[0009] As a further optimization of the heating device of a heat shrink tube for protecting cable joints in the utility model: a positioning component is arranged on the conveying belt of the conveying mechanism, and the positioning component includes a flexible plate laid on the outer surface of the conveying belt, and a plurality of accommodating grooves are opened on the flexible plate along the conveying direction of the conveying belt, and the accommodating grooves extend along the width direction of the conveying belt, and the accommodating grooves are used to accommodate the cables and the heat shrink tubes sleeved on the cable joints.
[0010] As a further optimization of the heating device of a heat shrink tube for protecting cable joints in the utility model: a plurality of second heat dissipation holes are opened on the bottom wall of the accommodating groove.
[0011] As a further optimization of the heating device of a heat shrink tube for protecting cable joints in the utility model: a containing box is fixedly arranged above the conveying mechanism, the containing box includes a first box body and a second box body arranged up and down, the first box body and the second box body are connected to each other, the heating mechanism is fixedly arranged in the first box body, there is a gap between the second box body and the conveying mechanism, and a wind shield is arranged on the part of the second box body close to the conveying mechanism.
[0012] As a further optimization of the heating device of a heat shrink tube for protecting cable joints in the utility model: a plurality of heating fan switches corresponding to the heating fans are arranged on the first box body.
[0013] Beneficial effect: The heat shrinkable tube of the utility model is perpendicular to the conveying direction of the conveying mechanism, and the heat shrinkable tube can pass under all air outlets in sequence. Therefore, the heating fan at the appropriate air outlet diameter can be turned on for heating according to the location of the heat shrinkable tube and the model of the heat shrinkable tube, thereby avoiding deformation of cables that do not need to be heated and baked. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of an implementation method of the utility model;
[0015] Figure 2 yes Figure 1 A partial enlarged view of
[0016] Figure 3 It is a schematic diagram of another implementation mode of the utility model;
[0017] Figure 4 yes Figure 3 A partial enlarged view of B;
[0018] Figure 5 is a schematic diagram of the heating mechanism;
[0019] Markings in the figure: 1. heat shrink tube, 101. cable, 2. conveying mechanism, 201. conveying belt, 3. positioning assembly, 301. positioning strip, 302. accommodating space, 303. first heat dissipation hole, 304. flexible board, 305. accommodating slot, 4. accommodating box, 401. first box body, 402. second box body, 403. wind shield strip, 404. heating fan switch, 5. heating mechanism, 501. first heating fan, 502. second heating fan, 503. third heating fan, 504. first cone, 505. second cone, 506. third cone, 507. air outlet. DETAILED DESCRIPTION
[0020] The technical solution of the present invention is further elaborated in detail below in conjunction with specific embodiments. The parts that are not described and disclosed in detail in the following embodiments of the present invention should be understood as the prior art known or should be known to those skilled in the art, such as the material, model and heat shrinkage principle of the heat shrink tube 1, the material and model of the cable 101, how the heat shrink tube 1 is installed at the joint of the cable 101, the material of the flexible board 304, the model and structure of the belt conveyor, the model of the heating fan, etc.
[0021] Example 1
[0022] A heating device for a heat shrink tube for protecting a cable joint, such as Figure 1 and Figure 5 As shown, it includes a heating mechanism 5 and a conveying mechanism 2 arranged in an upper and lower position. The conveying mechanism 2 is used to convey the cable 101 and the heat shrink tube 1 sleeved on the joint of the cable 101, and the heat shrink tube 1 can enter or leave the heating mechanism 5. The heating mechanism 5 is fixedly arranged above the conveying mechanism 2. The heating mechanism 5 includes a plurality of heating fans distributed in sequence along the conveying direction of the conveying mechanism 2. The number of heating fans can be set to three. The air outlets of all heating fans are connected to the air outlet 507, and the calibers of all the air outlet 507 are different. The calibers of the air outlet 507 along the conveying direction of the conveying mechanism 2 can be arranged according to the conveying direction of the conveying mechanism 2. When the conveying mechanism 2 conveys the heat shrink tube 1, the heat shrink tube 1 is perpendicular to the conveying direction of the conveying mechanism 2, and the heat shrink tube 1 can pass under all the air outlets 507 in turn. According to the position of the cable 101 and the heat shrink tube 1 sleeved at the joint of the cable 101 on the conveying mechanism 2 and the model of the heat shrink tube 1, the heating fan at the air outlet 507 of the appropriate caliber can be turned on, so as to avoid excessive hot air from the heating fan directly blowing on the part of the cable 101 that does not need to be heated, thereby avoiding unnecessary deformation of the cable 101; after heating, the cable 101 leaves the heating mechanism 5 through the conveying mechanism 2.
[0023] The above is a basic implementation method of the utility model, which can be further improved, optimized and limited on the basis of the above to obtain the following embodiments:
[0024] Example 2
[0025] This embodiment is an improved solution based on the embodiment 1. Its main structure is the same as that of the embodiment 1. The improvement is as follows: Figure 5 As shown, the air outlet sizes of the heating fans are consistent, but the calibers of the air outlet tubes 507 are different. In order to ensure the coordination effect between the heating fans and the air outlet tubes 507, the heating fans are connected to the air outlet tubes 507 via an air guide cone. The small end of the air guide cone is sealedly connected to the air outlet of the heating fan, and the large end of the air guide cone is sealedly connected to the air inlet of the air outlet tube 507. The calibers of the small ends of the air guide cones are consistent, while the calibers of the large ends of the air guide cones are different, which are respectively coordinated with the calibers of the air inlets of the connected air outlet tubes 507.
[0026] Example 3
[0027] This embodiment is an improved solution based on the embodiment 1. Its main structure is the same as that of the embodiment 1. The improvement is as follows: Figure 1 and Figure 2As shown, the conveying mechanism 2 is set as a belt conveyor, the length extension direction of the heat shrink tube 1 is consistent with the width extension direction of the conveyor belt 201 of the belt conveyor, and the conveyor belt 201 is provided with a positioning assembly 3, which includes two groups of positioning strips 301 respectively fixedly arranged at two edge positions of the conveyor belt 201, and the positioning strips 301 of the same group are distributed along the conveying direction of the conveyor belt 201, and a receiving space 302 is formed between adjacent positioning strips 301, and the receiving space 302 is used to receive the cable 101, and the heat shrink tube 1 sleeved at the joint of the cable 101 is placed on the surface of the conveyor belt 201, and the cable 101 can be placed inside the receiving space 302. If the cable 101 is too long, it can extend out of the receiving space 302. After the heating and baking is completed, as the conveyor belt 201 rotates, the cable 101 will fall off from the receiving space 302. A first heat dissipation hole 303 is provided on the positioning strip 301 to prevent the positioning strip 301 from being overheated and damaging the cable 101.
[0028] Example 4
[0029] This embodiment is an improved solution based on the embodiment 1. Its main structure is the same as that of the embodiment 1. The improvement is as follows: Figure 3 and Figure 4 As shown, a positioning component 3 is provided on the conveying belt 201 of the conveying mechanism 2, and the positioning component 3 includes a flexible board 304 laid on the outer surface of the conveying belt 201. The flexible board 304 is a conventional technical means in the field and will not be described in detail here. A plurality of receiving grooves 305 are provided on the flexible board 304 along the conveying direction of the conveying belt 201. The receiving grooves 305 extend along the width direction of the conveying belt 201. The receiving grooves 305 are used to accommodate the cable 101 and the heat shrink tube 1 sleeved at the joint of the cable 101. The cable 101 can be extended from the receiving groove 305 if it is too long. After the heating and baking is completed, as the conveying belt 201 rotates, the cable 101 will fall off from the receiving groove 305. The bottom wall of the receiving groove 305 is provided with a plurality of second heat dissipation holes to prevent the flexible board 304 from being overheated and damaging the cable 101.
[0030] Example 5
[0031] This embodiment is an improved solution based on the embodiment 1. Its main structure is the same as that of the embodiment 1. The improvement is as follows: Figure 1 , Figure 3 and Figure 5As shown, a receiving box 4 is fixedly arranged above the conveying mechanism 2, and the fixing method is conventional technology. For example, a mounting rod can be fixedly connected to the side of the conveying mechanism 2, and the mounting rod is fixedly connected to the receiving box 4. The receiving box 4 includes a first box body 401 and a second box body 402 arranged up and down, and the first box body 401 and the second box body 402 are connected to each other. The heating mechanism 5 is fixedly arranged in the first box body 401, and there is a gap between the second box body 402 and the conveying mechanism 2, and a windshield strip 403 is provided on the part of the second box body 402 close to the conveying mechanism 2 to prevent too much hot air from being lost from the gap and affecting the heating and baking effect. The first box 401 is provided with a plurality of heating fan switches 404 corresponding to the heating fans one by one. The heating fans include the first heating fan 501, the second heating fan 502 and the third heating fan 503. According to the selected heating fan, the corresponding heating fan switch 404 is turned on. How to realize the control between the heating fan switch 404 and the first heating fan 501, the second heating fan 502 and the third heating fan 503, how to route the internal wiring, etc. are all conventional existing technologies in the field, and will not be described in detail here. The air guide cone includes a first cone 504, a second cone 505 and a third cone 506. The first cone 504 is connected to the first heating fan 501, the second cone 505 is connected to the second heating fan 502, and the third cone 506 is connected to the third heating fan 503.
[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A heating device for a heat shrink tube for protecting a cable joint, comprising a heating mechanism (5) and a conveying mechanism (2) arranged above and below, the conveying mechanism (2) being used to convey a cable (101) and a heat shrink tube (1) sleeved on a joint of the cable (101), and the heat shrink tube (1) being able to enter or leave the heating mechanism (5), the heating mechanism (5) being fixedly arranged above the conveying mechanism (2), characterized in that: The heating mechanism (5) comprises a plurality of heating fans distributed in sequence along the conveying direction of the conveying mechanism (2); the air outlets of all the heating fans are connected to air outlet tubes (507), and the calibers of all the air outlet tubes (507) are different; when the conveying mechanism (2) conveys the heat shrink tube (1), the heat shrink tube (1) is perpendicular to the conveying direction of the conveying mechanism (2), and the heat shrink tube (1) can pass under all the air outlet tubes (507) in sequence.
2. The heating device for the heat shrink tube for protecting cable joints according to claim 1, characterized in that: The heating fan is connected to the air outlet cylinder (507) via an air guide cone, the small end of the air guide cone is sealed to the air outlet of the heating fan, and the large end of the air guide cone is sealed to the air inlet of the air outlet cylinder (507).
3. The heating device for the heat shrink tube for cable joint protection according to claim 1, characterized in that: The conveying mechanism (2) is configured as a belt conveyor, and a positioning assembly (3) is provided on the conveying belt (201), the positioning assembly (3) comprising two groups of positioning strips (301) respectively fixedly arranged at two edge positions of the conveying belt (201), the positioning strips (301) in the same group are distributed along the conveying direction of the conveying belt (201), and an accommodation space (302) is formed between adjacent positioning strips (301), and the accommodation space (302) is used to accommodate the cable (101).
4. The heating device for the heat shrink tube for protecting cable joints according to claim 3, characterized in that: The positioning strip (301) is provided with a first heat dissipation hole (303).
5. The heating device for the heat shrink tube for protecting cable joints according to claim 1, characterized in that: A positioning assembly (3) is provided on the conveying belt (201) of the conveying mechanism (2), the positioning assembly (3) comprising a flexible plate (304) laid on the outer surface of the conveying belt (201), a plurality of receiving grooves (305) are provided on the flexible plate (304) along the conveying direction of the conveying belt (201), the receiving grooves (305) extend along the width direction of the conveying belt (201), and the receiving grooves (305) are used to receive the cable (101) and the heat shrink tube (1) sleeved on the joint of the cable (101).
6. The heating device for the heat shrink tube for protecting cable joints according to claim 5, characterized in that: The bottom wall of the containing groove (305) is provided with a plurality of second heat dissipation holes.
7. The heating device for the heat shrink tube for protecting cable joints according to claim 1, characterized in that: A containing box (4) is fixedly arranged above the conveying mechanism (2), the containing box (4) comprising a first box body (401) and a second box body (402) arranged up and down, the first box body (401) and the second box body (402) are connected to each other, the heating mechanism (5) is fixedly arranged in the first box body (401), there is a gap between the second box body (402) and the conveying mechanism (2), and a windshield strip (403) is arranged on the part of the second box body (402) close to the conveying mechanism (2).
8. The heating device for the heat shrink tube for protecting cable joints according to claim 7, characterized in that: The first box (401) is provided with a plurality of heating fan switches (404) corresponding one to one with the heating fans.