Curing device for cable production

Abstract

The utility model relates to the technical field of cable production equipment, and discloses a cable production curing device, which comprises a curing mechanism and a cable body, a gluing mechanism, a wrapping device, a heating device and a waste gas collecting and discharging device are arranged in the curing mechanism, and silica gel can be coated on the outer surface of the cable body through the gluing mechanism. A plurality of glue liquid strips distributed at intervals in the circumferential direction can be formed on the surface of the cable under the action of a tooth-shaped glue scraping mold, the surface of the cable outer sheath is coated with a layer of glass fiber belt in an overlapped mode through a wrapping head, the glue liquid strips are pressed between the cable body and the glass fiber belt in the winding process, silica gel is heated through a tubular electric furnace, and therefore the glue liquid strips are evenly distributed on the surface of the cable. The silica gel is cured after being heated, so that the glass fiber belt and the cable body are tightly bonded together, the situation that the glass fiber belt is loosened due to the fact that the glass fiber belt is damaged in the construction process of the cable body is avoided, and organic solvent volatile matter in the silica gel and gas generated during thermocuring can be pumped away through the waste gas collecting and discharging device to be subjected to centralized harmless treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of flame-retardant tapes, and particularly relates to a cable production curing device. Background Art

[0002] In order to prevent the flame from spreading along the cable when a fire occurs or the combustible particulate matter in the cable drips in the flame, resulting in the expansion of the fire, relevant design specifications have made corresponding requirements for the combustion performance of cables under different building environmental conditions. GB 31247 "Classification of the Combustion Performance of Cables and Optical Cables" gives specific classification parameters and indicators for the combustion performance of cable products. Among them, for Class B1 and Class B2, further classification is also carried out in three aspects: combustion drips, smoke toxicity, and corrosivity. In the existing product technology, it is not difficult to reach Class B1, and it is also easy to meet the additional smoke toxicity and corrosivity. The most difficult thing is to meet the requirement of no combustion drips, that is, d0, during the test. This is because the outer sheath of Class B1 cables uses low-smoke and halogen-free materials, and during the combustion process, the material decomposes and expands, which easily causes the unburned particulate matter in the outer sheath to break away and form combustion drips. Although material manufacturers continuously improve the formula to meet the requirements of Class B1d0, it is still very difficult to ensure 100% compliance, and the material price is expensive.

[0003] Overlapping and winding an alkali-free fiberglass tape on the surface of the cable outer sheath can make the combustion performance of the cable fully meet the requirements of Class B1d0 when using ordinary low-smoke and halogen-free sheath materials. However, during the cable laying construction, the alkali-free fiberglass tape may break and scatter. Once it scatters, it is not only cumbersome to manually rewind it, but there may also be sections that cannot be repaired, which will have an adverse impact on the flame-retardant performance of the entire cable. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a cable production curing device to solve the above technical problems.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A cable production and curing device, comprising a device housing and a cable body. An adhesive application mechanism, a wrapping device, a heating device and an exhaust gas collection and discharge device are arranged inside the device housing. The cable body sequentially passes through the adhesive application mechanism, the wrapping device and the heating device. The adhesive application mechanism includes a box body, in which silica gel, a pump body, a precoating die and a toothed scraping die are placed. A nozzle is connected to the pump body. The wrapping device includes a base and a tape storage rack installed inside the device housing. A wrapping head is arranged on the base, and a plurality of spare tapes are placed on the tape storage rack. The heating device includes a tubular electric furnace, and an electric heating plate is arranged inside the tubular electric furnace. The exhaust gas collection and discharge device is arranged on the inner wall of the top of the device housing. Supporting wheels are arranged at the inlet end of the box body and the outlet end of the tubular electric furnace. Through holes for the cable body to pass through are formed on both sides of the device housing.

[0008] Preferably, a exhaust pipe communicated with the exhaust gas collection and discharge device is arranged on the top of the device housing.

[0009] Preferably, two die frames are arranged inside the box body, and the precoating die and the toothed scraping die are respectively installed on the two die frames.

[0010] Preferably, a transparent observation window is arranged on one side of the device housing.

[0011] Preferably, two groups of symmetrically arranged supporting seats are arranged inside the device housing, and the box body and the tubular electric furnace are respectively installed on the two groups of supporting seats.

[0012] Preferably, circular holes for the cable body to pass through are formed on both the tape storage rack and the wrapping head.

[0013] Preferably, openable top covers are arranged on both the box body and the tubular electric furnace.

[0014] Compared with the prior art, the utility model provides a cable production and curing device, which has the following

[0015] Advantages:

[0016] 1. The utility model can apply silica gel on the outer surface of the cable body through the adhesive application mechanism, and under the action of the toothed scraping die, a plurality of glue strips distributed at intervals along the circumferential direction can be formed on the cable surface. Then, a layer of fiberglass tape is overlapped and wrapped on the surface of the cable outer sheath through the wrapping head. During the bypassing process, the glue strips are pressed between the cable body and the fiberglass tape. Then, the silica gel is heated by the tubular electric furnace. After the silica gel is heated and cured, the fiberglass tape is tightly bonded to the cable body, avoiding the loosening of the fiberglass tape caused by the breakage of the fiberglass tape during the construction process of the cable body. And the exhaust gas collection and discharge device can extract and centrally harmlessly treat the organic solvent volatiles in the silica gel and the gases generated during thermal curing. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the present utility model;

[0019] Figure 3 is a schematic cross-sectional structure diagram of the waste gas collection and exhaust device of the present utility model;

[0020] Figure 4 is a schematic overall side cross-sectional structure diagram of the present utility model.

[0021] Wherein: 1. device housing; 2. box body; 3. through hole; 4. supporting roller; 5. cable body; 6. base; 7. tape storage rack; 8. support seat; 9. tubular electric furnace; 10. waste gas collection and exhaust device; 11. exhaust pipe; 12. fiberglass tape; 13. wrapping head; 14. spare tape; 15. precoating die; 16. electric heating plate; 17. silica gel; 18. pump body; 19. nozzle; 20. toothed rubber scraping die. Specific embodiments

[0022] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Please refer to Figures 1-4, A cable production curing device, including a device housing 1 and a cable body 5. Inside the device housing 1, there are a gluing mechanism, a winding device, a heating device, and an exhaust gas collection and discharge device 10. The cable body 5 passes through the gluing mechanism, the winding device, and the heating device in sequence. The gluing mechanism includes a box body 2, in which silica gel 17, a pump body 18, a pre-coating die 15, and a toothed scraping die 20 are placed. A nozzle 19 is connected to the pump body 18. The winding device includes a base 6 and a tape storage rack 7 installed inside the device housing 1. A winding head 13 is provided on the base 6, and several spare tapes 14 are placed on the tape storage rack 7. The heating device includes a tubular electric furnace 9, and an electric heating plate 16 is arranged inside the tubular electric furnace 9. The exhaust gas collection and discharge device 10 is arranged on the top inner wall of the device housing 1. Support wheels 4 are provided at the inlet end of the box body 2 and the outlet end of the tubular electric furnace 9. Through holes 3 for the cable body 5 to pass through are opened on both sides of the device housing 1.

[0026] Through the pump body 18 in the gluing mechanism, the silica gel 17 in the box body 2 can be extracted and sprayed onto the cable body 5 through the nozzle 19, so as to coat a thicker layer of silica gel 17 on the outer surface of the cable body 5. Under the action of the toothed scraping die 20, multiple glue liquid strips distributed at intervals along the circumferential direction can be formed on the cable surface. And a layer of fiberglass tape 12 is overlapped and wrapped on the surface of the cable outer sheath through the winding head 13. During the winding process, the glue liquid strips are pressed between the cable body 5 and the fiberglass tape 12. Then, the silica gel 17 is heated by the tubular electric furnace 9, and the silica gel 17 is cured after heating, so that the fiberglass tape 12 is tightly adhered to the cable body 5, avoiding the fiberglass tape 12 from loosening due to the breakage of the fiberglass tape 12 during the construction process of the cable main body. And the exhaust gas collection and discharge device 10 can extract and centrally harmlessly treat the organic solvent volatiles in the silica gel 17 and the gases generated during thermal curing.

[0027] Specifically, in this embodiment, an exhaust pipe 11 communicating with the exhaust gas collection and discharge device 10 is provided at the top of the device housing 1. Through the provided exhaust pipe 11, the exhaust gas extracted by the exhaust gas collection and discharge device 10 can be transported to the treatment equipment for harmless treatment.

[0028] Specifically, in this embodiment, two die holders are arranged in the box body 2, and the pre-coating die 15 and the toothed scraping die 20 are respectively installed on the two die holders. The pre-coating die 15 and the toothed scraping die 20 can be supported by the die holders.

[0029] Specifically, in this embodiment, a transparent observation window is arranged on one side of the device housing 1. Through the observation window, the operation state of the device can be observed in real time.

[0030] Specifically, in this embodiment, two groups of symmetric support seats 8 are arranged inside the device housing 1. The box body 2 and the tubular electric furnace 9 are respectively installed on the two groups of support seats 8. The box body 2 and the tubular electric furnace 9 can be supported by the provided support seats 8.

[0031] Specifically, in this embodiment, circular holes for the cable body 5 to pass through are formed in both the cable storage rack 7 and the wrapping head 13.

[0032] Specifically, in this embodiment, openable top covers are provided on both the box body 2 and the tubular electric furnace 9. Through the openable top covers, the interiors of the box body 2 and the tubular electric furnace 9 can be conveniently maintained, thereby ensuring the service life of the device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable production curing device, comprising a device housing and a cable body, characterized in that: Inside the device housing, there are a gluing mechanism, a winding device, a heating device and an exhaust gas collection and discharge device. The cable body sequentially passes through the gluing mechanism, the winding device and the heating device. The gluing mechanism includes a box body, in which silicone, a pump body, a pre-coating die and a toothed scraping die are placed. The pump body is connected with a spray head. The winding device includes a base and a tape storage rack installed inside the device housing. A winding head is arranged on the base, and several spare tapes are placed on the tape storage rack. The heating device includes a tubular electric furnace, and an electric heating plate is arranged inside the tubular electric furnace. The exhaust gas collection and discharge device is arranged on the inner wall of the top of the device housing. Supporting wheels are arranged at the inlet end of the box body and the outlet end of the tubular electric furnace. Through holes for the cable body to pass through are opened on both sides of the device housing.

2. The curing device for cable production according to claim 1, characterized in that: An exhaust pipe communicated with the exhaust gas collection and discharge device is arranged on the top of the device housing.

3. A cable production curing device according to claim 1, characterized in that: Two die carriers are arranged inside the box body, and the pre-coating die and the toothed scraping die are respectively installed on the two die carriers.

4. A cable production curing device according to claim 1, characterized in that: A transparent observation window is arranged on one side of the device housing.

5. A cable production curing device according to claim 1, characterized in that: Two groups of symmetrically arranged support seats are arranged inside the device housing, and the box body and the tubular electric furnace are respectively installed on the two groups of support seats.

6. A cable production curing device according to claim 1, characterized in that: Circular holes for the cable body to pass through are opened on both the tape storage rack and the winding head.

7. A cable production curing device according to claim 1, characterized in that: Openable top covers are arranged on both the box body and the tubular electric furnace.

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