Cable belting hot laminating device

Abstract

The utility model relates to the technical field of cable production equipment, and discloses a cable belting thermal laminating device, which comprises a bottom shell, a top shell, a cable main body and a composite flame-retardant belting coated on the outer surface of the cable main body, and is characterized in that the top shell is hinged on the bottom shell through a hinge; supporting wheels are arranged at the wire inlet end and the wire outlet end of the bottom shell, two symmetrical heating boxes are arranged in the bottom shell, and a plurality of circulating fans are arranged on the top shell. A cable outer sheath layer material can be heated to a micro-molten state through a hot air heating mechanism composed of a circulating fan, a heating box and other structures, and then a halogen-free low-smoke composite flame-retardant wrapping tape and a cable outer sheath are tightly pressed through a clamping roller wheel and a clamping roller, so that the cable wrapping tape hot laminating process is completed. Glue is not needed in the whole production process, so that inflammable and toxic gas volatilized by a glue diluent does not need to be worried about, and the safety level of a production place and occupational health of workers are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cable production equipment, in particular to a cable tape thermal bonding device. Background Art

[0002] In order to prevent the flame from spreading along the cable or the combustible particles in the cable dripping in the flame, the relevant design specifications have made corresponding requirements for the combustion performance of cables under different building environment conditions. GB 31247 "Classification of Combustion Performance of Cables and Optical Cables" provides specific classification parameters and indicators for the combustion performance of cable products. Among them, B1 and B2 levels are further classified in three aspects: burning dripping, smoke toxicity and corrosiveness. In existing product technologies, it is not difficult to achieve B1 level, and it is also easy to meet the additional smoke toxicity and corrosiveness. The most difficult thing is to meet the requirement of no burning dripping during the test, that is, d0. This is because the outer sheath of B1-level cable uses low-smoke halogen-free material. During the combustion process, the decomposition and expansion of the material can easily cause the unburned particles in the outer sheath to collapse and form burning dripping. Although material manufacturers continue to improve the formula to meet the requirements of B1d0 level, it is still difficult to guarantee 100% satisfaction and the material price is expensive.

[0003] By wrapping a layer of alkali-free glass cloth on the surface of the cable outer sheath, the cable combustion performance can fully meet the B1d0 level requirements when using ordinary low-smoke halogen-free sheath materials. However, the conventional production process requires the alkali-free glass cloth to be bonded to the outside of the cable by applying silicone. During the production process, the glue diluent is highly volatile and flammable, and the volatile gas is harmful to human health, which will face strict requirements on the safety level of the production site and the occupational health protection of workers. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a cable tape heat bonding device to solve the above technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable tape thermal bonding device, comprising a bottom shell, a top shell, a cable body and a composite flame-retardant tape wrapped around the outer surface of the cable body, the top shell is hinged to the bottom shell by a hinge, the inlet and outlet ends of the bottom shell are both provided with supporting rollers, two mutually symmetrical heating boxes are arranged in the bottom shell, a number of circulating fans are arranged on the top shell, two mutually symmetrical air guide plates are arranged on the top shell, a fixed roller frame is arranged in the bottom shell, the top of the fixed roller frame is connected to a movable frame by two tension springs, clamping rollers are rotatably installed on the fixed roller frame and the movable frame, and the two clamping rollers are both tightly attached to the cable body.

[0008] Preferably, a guide rail is arranged in the bottom shell, a bidirectional threaded rod is rotatably installed in the guide rail, two mutually symmetrical movable connecting blocks are threadedly connected to the bidirectional threaded rod, a clamping roller is rotatably installed on the movable connecting block, and the clamping roller is tightly attached to the cable body.

[0009] Preferably, the bidirectional threaded rod passes through the bottom shell and extends to the outside and is connected to a hand wheel at one end.

[0010] Preferably, a thermocouple is arranged in the bottom shell, and a temperature control mechanism electrically connected to the thermocouple is installed on one side of the bottom shell.

[0011] Preferably, a plurality of electric heating tubes are arranged in the heating box, and a plurality of guide plates are arranged on the sides of the two heating boxes close to each other.

[0012] Preferably, the top and bottom of the heating box are provided with openings for air circulation.

[0013] Compared with the prior art, the utility model provides a cable tape thermal bonding device, which has the following beneficial effects:

[0014] 1. The utility model can heat the cable outer sheath layer material to a slightly molten state through a hot air heating mechanism composed of a circulating fan and a heating box, and then tightly press the halogen-free low-smoke composite flame-retardant tape and the cable outer sheath through a clamping roller and a clamping roller, thereby completing the cable tape heat bonding process. No glue is required in the entire production process, so there is no need to worry about the volatilization of flammable and toxic gases from the glue diluent, thereby ensuring the safety level of the production site and the occupational health of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the movable connection block and bidirectional threaded rod and other structures of the utility model;

[0017] Figure 3 It is a schematic diagram of the side cross-sectional structure of the utility model as a whole;

[0018] Figure 4 It is a cross-sectional structural schematic diagram of the heating box, air guide plate and other structures of the utility model.

[0019] Among them: 1. bottom shell; 2. top shell; 3. hinge; 4. electric heating tube; 5. circulation fan; 6. air guide plate; 7. heating box; 8. guide plate; 9. cable body; 10. composite flame retardant tape; 11. temperature control mechanism; 12. fixed roller frame; 13. tension spring; 14. movable frame; 15. clamping roller; 16. bidirectional threaded rod; 17. movable connecting block; 18. clamping roller; 19. thermocouple; 20. guide rail; 21. support wheel; 22. hand wheel. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4A cable tape thermal bonding device comprises a bottom shell 1, a top shell 2, a cable body 9 and a composite flame retardant tape 10 wrapped around the outer surface of the cable body 9, the top shell 2 is hinged to the bottom shell 1 by a hinge 3, the inlet and outlet ends of the bottom shell 1 are both provided with supporting wheels 21, two mutually symmetrical heating boxes 7 are arranged in the bottom shell 1, a plurality of circulating fans 5 are arranged on the top shell 2, two mutually symmetrical air guide plates 6 are arranged on the top shell 2, a fixed roller frame 12 is arranged in the bottom shell 1, the top of the fixed roller frame is connected to a movable frame 14 by two tension springs 13, clamping rollers 15 are rotatably installed on the fixed roller frame and the movable frame 14, and the two clamping rollers 15 are both tightly attached to the cable body 9.

[0024] When in use, the cable body 9 can be wrapped with the composite flame retardant tape 10 and then passed through one end of the device and out from the other end, and passed between the two clamping rollers 15, so that the two clamping rollers 15 can clamp the cable body 9 through the elastic potential energy of the tension spring 13, and the wrapped composite flame retardant cable is blown from the top by the circulating fan 5, and the wind blown can pass through the heating box 7, and the air can be heated by the electric heating tube 4 in the heating box 7, so that the heated hot air passes through the guide plate 8 and the heating box 7 to blow and heat the side and bottom of the cable, and the outer sheath material of the cable can be heated to a slightly molten state, and then the halogen-free and low-smoke composite flame retardant tape 10 is tightly pressed with the outer sheath of the cable through the clamping roller 15 and the clamping roller 18, thereby completing the cable tape thermal bonding process, and the entire production process does not require the use of glue, so there is no need to worry about the volatilization of flammable and toxic gases by the glue diluent, thereby ensuring the safety level of the production site and the occupational health of the workers.

[0025] Specifically, in this embodiment, a guide rail 20 is arranged in the bottom shell 1, and a bidirectional threaded rod 16 is rotatably installed in the guide rail 20. Two mutually symmetrical movable connecting blocks 17 are threadedly connected to the bidirectional threaded rod 16, and a clamping roller 18 is rotatably installed on the movable connecting block 17, and the clamping roller 18 is tightly attached to the cable body 9.

[0026] By rotating the bidirectional threaded rod 16, the two movable connecting blocks 17 can be brought closer to each other through the threaded engagement relationship, and then the two clamping rollers 18 can be brought closer to each other to clamp and fix the cable body 9, so that the device can adapt to cables of different sizes and improve adaptability.

[0027] Specifically, in this embodiment, the bidirectional threaded rod 16 passes through the bottom shell 1 and extends to one end of the outside and is connected to a hand wheel 22, through which the bidirectional threaded rod 16 can be easily rotated, thereby achieving the purpose of conveniently adjusting the distance between the two clamping rollers 18.

[0028] Specifically, in this embodiment, a thermocouple 19 is arranged in the bottom shell 1, and a temperature control mechanism 11 electrically connected to the thermocouple 19 is installed on one side of the bottom shell 1. The temperature in the device is sensed by the thermocouple 19. When the sensed temperature reaches the preset process temperature, the input power of the electric heating tube 4 can be controlled by the temperature control mechanism 11, so that the circulating air temperature in the device is kept constant.

[0029] Specifically, in this embodiment, a plurality of electric heating tubes 4 are arranged in the heating box 7 , and a plurality of guide plates 8 are arranged on the sides of the two heating boxes 7 that are close to each other.

[0030] Specifically, in this embodiment, the top and bottom of the heating box 7 are both provided with openings for air circulation.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable tape thermal bonding device, comprising a bottom shell, a top shell, a cable body and a composite flame retardant tape coated on the outer surface of the cable body, characterized in that: The top shell is hinged to the bottom shell by a hinge, and the inlet and outlet ends of the bottom shell are both provided with supporting wheels. Two mutually symmetrical heating boxes are arranged in the bottom shell, and a plurality of circulation fans are arranged on the top shell. Two mutually symmetrical air guide plates are arranged on the top shell. A fixed roller frame is arranged in the bottom shell, and the top of the fixed roller frame is connected to a movable frame by two tension springs. Clamping rollers are rotatably installed on the fixed roller frame and the movable frame, and the two clamping rollers are tightly attached to the cable body.

2. A cable tape thermal bonding device according to claim 1, characterized in that: A guide rail is arranged in the bottom shell, a bidirectional threaded rod is rotatably installed in the guide rail, two mutually symmetrical movable connection blocks are threadedly connected on the bidirectional threaded rod, a clamping roller is rotatably installed on the movable connection block, and the clamping roller is tightly attached to the cable body.

3. A cable tape thermal bonding device according to claim 2, characterized in that: The bidirectional threaded rod penetrates the bottom shell and extends to the outside and is connected with a hand wheel at one end.

4. A cable tape thermal bonding device according to claim 1, characterized in that: A thermocouple is arranged in the bottom shell, and a temperature control mechanism electrically connected to the thermocouple is installed on one side of the bottom shell.

5. A cable tape thermal bonding device according to claim 1, characterized in that: A plurality of electric heating tubes are arranged in the heating box, and a plurality of guide plates are arranged on the sides of the two heating boxes close to each other.

6. A cable tape thermal bonding device according to claim 5, characterized in that: The top and bottom of the heating box are both provided with openings for air circulation.

Images