A rubber roller vulcanizing device

Abstract

A rubber roller vulcanization device includes a wiring pipe, a first insulation layer is sleeved on the outer side of the wiring pipe, a first heating layer is coated on the outer side of the first insulation layer, a first heating device is arranged in the first heating layer, a first temperature-averaging layer is coated on the outer side of the first heating layer, a second temperature-averaging layer is sleeved on the outer side of the first temperature-averaging layer, and a cavity is formed by a gap between the second temperature-averaging layer and the first temperature-averaging layer, wherein a temperature-averaging mold is arranged in the cavity, a through hole is arranged along the axial direction of the temperature-averaging mold, and the temperature-averaging mold has a heat-conducting temperature-averaging layer. Temperature control can be achieved, heat is transmitted through the first temperature-averaging layer and the second temperature-averaging layer, and the rubber roller is wrapped with the temperature-averaging mold. Heat is directly contacted and transferred to the vulcanized rubber roller surface through the temperature-averaging mold, so that the rubber surface is heated evenly and the heat conduction efficiency is high. The first insulation layer and the second insulation layer can reduce heat loss, have high thermal conductivity, high energy consumption efficiency, high heat transfer efficiency, uniform temperature, and improve the vulcanization quality.

Description

Technical Field

[0001] The invention relates to the field of plastic machinery, in particular to vulcanization technology, in particular to a rubber roller vulcanization device. Background Art

[0002] Commonly used industrial rubber rollers are usually vulcanized by tank heating. Traditional heating sources include steam vulcanization and electric heating air vulcanization. With the continuous upgrading of national environmental protection and industrial pressure vessel safety requirements, the method of steam heating vulcanization of rubber rollers is basically no longer used in China, and more people use hot air vulcanization. From the perspective of the vulcanization effect of rubber rollers, steam vulcanization has advantages such as direct heat transfer and uniform temperature, which has a better vulcanization effect on rubber rollers and is welcomed by the majority of users. Of course, steam heating is restricted in use in addition to environmental protection and safety reasons. The steam vulcanization method uses fuel to heat water to obtain water vapor and then transmits it to the rubber roller body. The energy efficiency utilization rate is low, and most of the energy is wasted in combustion conversion and transmission loss. At the same time, the use and maintenance costs of steam equipment and the labor costs of professional practitioners are relatively high, and there are greater safety risks. Under the above usage conditions and the requirements of relevant national environmental protection policies, almost no one uses steam boiler vulcanization equipment for rubber rollers. When hot air is used to vulcanize rubber rollers, heat transfer relies on air as a medium. Due to the low thermal conductivity of hot air, the heat transfer time is long and the temperature is relatively difficult to achieve uniformity. Usually, the temperature difference between the product inside the tank and the product outside the tank is large, making it difficult to achieve consistent control of the process temperature. It is common for the rubber roller in the center of the tank to be under-cured or the rubber roller outside the roller to be over-cured. In summary, the two existing vulcanization methods have the following problems:

[0003] 1. The steam sulfur method has high maintenance costs, low energy efficiency, safety risks, environmental restrictions, and harsh operating conditions;

[0004] 2. Hot air vulcanization has slow heat transfer, uneven temperature and poor quality of vulcanized products. Summary of the invention

[0005] The object of the present invention is to provide a rubber roller vulcanization device, which is intended to solve the technical problems of uneven heat transfer and low heat transfer efficiency in hot air vulcanization of a vulcanization tank in the prior art, resulting in poor vulcanization effect and insufficient or over-vulcanization.

[0006] A rubber roller vulcanization device of the present invention comprises a wiring pipe, a first heat-insulating layer is sleeved on the outer side of the wiring pipe, a first heating layer is coated on the outer side of the first heat-insulating layer, a first heating device is arranged in the first heating layer, a first temperature-averaging layer is coated on the outer side of the first heating layer, a second temperature-averaging layer is sleeved on the outer side of the first temperature-averaging layer, a cavity is formed by a gap between the second temperature-averaging layer and the first temperature-averaging layer, a second heating layer is coated on the outer side of the second temperature-averaging layer, a second heating device is arranged in the second heating layer, and a second heat-insulating layer is coated on the outer side of the second heating layer.

[0007] A temperature-averaging mold is arranged in the cavity, a through hole is arranged along the axial direction of the temperature-averaging mold, and the temperature-averaging mold has a heat-conducting temperature-averaging layer.

[0008] Furthermore, a first temperature measuring probe is arranged on the outer side of the first temperature-averaging layer, and a second temperature measuring probe is arranged on the inner side of the second temperature-averaging layer.

[0009] Furthermore, it also includes a controller, which is respectively connected to the control end of the first heating device, the control end of the second heating device, the signal output end of the first temperature measuring probe, and the signal output end of the second temperature measuring probe.

[0010] Furthermore, the outer side surface of the temperature-averaging mold is provided with a plurality of grooves along the circumferential direction, and the outer surface of the first temperature-averaging layer and the inner surface of the second temperature-averaging layer are each provided with a plurality of protrusions matching with the grooves.

[0011] Furthermore, the temperature-isolating mold is made of carbon steel.

[0012] Furthermore, a third temperature measuring probe is provided on each of the temperature-averaging molds.

[0013] Furthermore, the temperature-isolating mold is composed of two sub-molds with semicircular cross-sections, and the two sub-molds are detachably connected.

[0014] Furthermore, the cavity is divided into four temperature zones, the first heating device and the second heating device respectively include four third heating devices and four fourth heating devices, and the four third heating devices and the four fourth heating devices are respectively arranged in four temperature zones.

[0015] Compared with the prior art, the present invention has a positive and obvious effect. A rubber roller vulcanization device of the present invention can realize temperature control through the first temperature measuring probe, the second temperature measuring probe, the controller, the first heating device and the second heating device, transfer heat through the first temperature equalizing layer and the second temperature equalizing layer, and use the temperature equalizing mold to wrap the rubber roller. The heat is directly contacted and transferred to the vulcanized rubber roller surface through the temperature equalizing mold, so that the rubber surface is heated evenly and the heat conduction efficiency is high. The first insulation layer and the second insulation layer can reduce heat loss, have high thermal conductivity, high energy consumption effective utilization rate, high heat transfer efficiency, small heat loss, and improve vulcanization efficiency. Moreover, the temperature can be uniform, and the consistency control of the process temperature is realized, and the situation of under-sulfurization or over-sulfurization is avoided, and the vulcanization quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a rubber roller vulcanization device of the present invention.

[0017] Figure 2 The present invention is a schematic structural diagram of a temperature-isolating mold in a rubber roller vulcanization device.

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of the part A in the middle.

[0019] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of the part B in the middle. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments, and all similar structures and similar variations of the present invention should be included in the protection scope of the present invention. Example

[0021] like Figure 1 to Figure 4 As shown, a rubber roller vulcanization device of the present invention comprises a wiring tube 1, a first heat-insulating layer 2 is sleeved on the outer side of the wiring tube 1, a first heating layer 3 is coated on the outer side of the first heat-insulating layer 2, a first heating device is arranged in the first heating layer 3, a first temperature-averaging layer 4 is coated on the outer side of the first temperature-averaging layer 4, a second temperature-averaging layer 7 is sleeved on the outer side of the first temperature-averaging layer 4, a cavity 11 is formed between the second temperature-averaging layer 7 and the first temperature-averaging layer 4, a second heating layer 8 is coated on the outer side of the second temperature-averaging layer 7, a second heating device is arranged in the second heating layer, and a second heat-insulating layer 9 is coated on the outer side of the second heating layer 8,

[0022] A temperature-averaging mold 12 is disposed in the cavity 11 . The temperature-averaging mold 12 is provided with through holes along its axial direction. The temperature-averaging mold 12 has a heat-conducting temperature-averaging layer.

[0023] Furthermore, a first temperature measuring probe 5 is disposed on the outer side of the first temperature-averaging layer 4 , and a second temperature measuring probe 6 is disposed on the inner side of the second temperature-averaging layer 7 .

[0024] Furthermore, it also includes a controller, which is connected to the control end of the first heating device, the control end of the second heating device, the signal output end of the first temperature measuring probe 5, and the signal output end of the second temperature measuring probe 6 respectively.

[0025] Furthermore, the outer side surface of the temperature-averaging mold 12 is provided with a plurality of grooves 14 along the circumferential direction, and the outer surface of the first temperature-averaging layer 4 and the inner surface of the second temperature-averaging layer 7 are each provided with a plurality of protrusions 15 matching with the grooves 14 .

[0026] It is convenient for the temperature-equalizing molds 12 of different sizes to be used in conjunction with each other, and the grooves 14 thereof can be matched with the protrusions 15, which is similar to the mutual combination of gears, has universality, and further meets the requirements for vulcanization of rubber rollers of different sizes.

[0027] Furthermore, the temperature-regulating mold 12 is made of carbon steel.

[0028] Furthermore, each of the temperature-regulating molds 12 is provided with a third temperature measuring probe.

[0029] Furthermore, the temperature-equalizing mold 12 is composed of two sub-molds with semicircular cross-sections, and the two sub-molds are detachably connected to facilitate assembly and disassembly, and the two sub-molds are each independently provided with a temperature-equalizing function.

[0030] Furthermore, the cavity 11 is divided into four temperature zones, and the first heating device and the second heating device respectively include four third heating devices and four fourth heating devices, and the four third heating devices and the four fourth heating devices are respectively arranged in four temperature zones, so that each temperature zone can adjust the temperature independently, and the third heating device and the fourth heating device in the same temperature zone are set to the same heating temperature.

[0031] Specifically, the insulation layer, heating layer, heating device, temperature-averaging layer, temperature measuring probe, controller, thermally conductive temperature-averaging layer, etc. in this embodiment all adopt well-known solutions in the prior art, which are well understood by those skilled in the art and will not be elaborated here.

[0032] The working principle of this embodiment:

[0033] The rubber roller 10 is wrapped with a temperature-averaging mold 12, and the temperature-averaging mold 12 and the rubber roller 10 are placed in the cavity 11 in two layers. The first heating device and the second heating device heat the first heating layer 3 and the second heating layer 8 respectively, and the first heating layer 3 and the second heating layer 8 are then respectively transferred to the first temperature-averaging layer 4 and the second temperature-averaging layer 7. The first temperature-averaging layer 4 and the second temperature-averaging layer 7 transfer heat to the temperature-averaging mold 12 uniformly, and then transfer heat to the surface of the rubber roller 10 for vulcanization. Temperature control can be achieved through the first temperature measuring probe 5, the second temperature measuring probe 6, the controller, and the first heating device and the second heating device. The device transmits heat through the first temperature-averaging layer 4 and the second temperature-averaging layer 7, and the first insulation layer 2 and the second insulation layer 9 can reduce heat loss, have high thermal conductivity, high heat transfer efficiency, and low heat loss, thereby improving vulcanization efficiency. Moreover, the temperature can be uniform, and the consistency control of the process temperature can be achieved, thereby avoiding the occurrence of under-vulcanization or over-vulcanization, thereby improving the vulcanization quality.

[0034] The rubber roller is wrapped with a temperature-equalizing mold 12, and the heat is directly transferred to the vulcanized rubber roller surface through the temperature-equalizing mold 12, so that the rubber surface is heated evenly and the heat conduction efficiency is high.

[0035] The temperature-averaging mold 12 can be made of metals such as carbon steel. The thermal conductivity of air is 0.023 W / m·k, and the thermal conductivity of different carbon steels is 46~80 W / m·k, which has obvious advantages in heat conduction efficiency. At the same time, the temperature-averaging mold 12 has a heat-conducting temperature-averaging layer, which effectively solves the problem of uneven temperature and inefficient heat transfer. Compared with existing hot air vulcanization, it has the characteristics of high efficiency and uniform temperature.

[0036] The third temperature probe on the temperature-equalizing mold 12 can monitor and record the temperature of each rubber roller during the vulcanization process, which is convenient for process analysis. The first temperature probe 5 can form a closed temperature loop with multiple loop feedback with the third temperature probe on the inner temperature-equalizing mold 12.

Claims

1. A rubber roller vulcanization device, characterized in that: The invention comprises a wiring pipe (1), wherein a first heat-insulating layer (2) is sheathed on the outer side of the wiring pipe (1), a first heating layer (3) is coated on the outer side of the first heat-insulating layer (2), a first heating device is arranged in the first heating layer (3), a first temperature-averaging layer (4) is coated on the outer side of the first heating layer (3), a second temperature-averaging layer (7) is sheathed on the outer side of the first temperature-averaging layer (4), a gap between the second temperature-averaging layer (7) and the first temperature-averaging layer (4) forms a cavity (11), a second heating layer (8) is coated on the outer side of the second temperature-averaging layer (7), a second heating device is arranged in the second heating layer, and a second heat-insulating layer (9) is coated on the outer side of the second heating layer (8). A temperature-averaging mold (12) is arranged in the cavity (11), the temperature-averaging mold (12) is provided with a through hole along its axial direction, and the temperature-averaging mold (12) has a heat-conducting temperature-averaging layer; The outer side surface of the temperature-averaging mold (12) is provided with a plurality of grooves (14) along the circumferential direction, and the outer surface of the first temperature-averaging layer (4) and the inner surface of the second temperature-averaging layer (7) are each provided with a plurality of protrusions (15) matching the grooves (14).

2. A rubber roller vulcanization device according to claim 1, characterized in that: A first temperature measuring probe (5) is arranged on the outside of the first temperature-averaging layer (4), and a second temperature measuring probe (6) is arranged on the inside of the second temperature-averaging layer (7).

3. A rubber roller vulcanization device according to claim 2, characterized in that: It also includes a controller, which is respectively connected to the control end of the first heating device, the control end of the second heating device, the signal output end of the first temperature measuring probe (5), and the signal output end of the second temperature measuring probe (6).

4. A rubber roller vulcanization device according to claim 1, characterized in that: The temperature-isolating mold (12) is made of carbon steel.

5. The rubber roller vulcanization device according to claim 1, characterized in that: A third temperature measuring probe is provided on each of the temperature-isolating molds (12).

6. The rubber roller vulcanization device according to claim 1, characterized in that: The temperature-averaging mold (12) is composed of two sub-molds with semicircular cross-sections, and the two sub-molds are detachably connected.

7. The rubber roller vulcanization device according to claim 1, characterized in that: The cavity (11) is divided into four temperature zones, the first heating device and the second heating device respectively include four third heating devices and four fourth heating devices, and the four third heating devices and the four fourth heating devices are respectively arranged in four temperature zones.

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