Liquid silica gel wire anti-sticking heating curing device

Abstract

The utility model discloses a liquid silica gel wire anti-sticking heating and curing device and belongs to the technical field of silica gel wire production devices. The drying oven comprises a drying oven body, a base support, a conveying belt and a heating layer, the drying oven body comprises an upper heat insulation plate, a front heat insulation plate, a lower heat insulation plate and a rear heat insulation plate, the heating layer is arranged on the inner wall of the upper heat insulation plate, the conveying belt is located in the drying oven body, and the base support is connected to the bottom of the drying oven body. A belt body of the conveying belt is made of polytetrafluoroethylene, or an anti-sticking layer is arranged on the surface of the belt body of the conveying belt. The utility model solves the problem that the liquid silica gel wire is difficult to be smoothly separated from the conveyor belt after being cured.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicone wire production devices, and in particular relates to a liquid silicone wire anti-sticking heating and curing device. Background Art

[0002] When using liquid silicone to produce silicone filaments, it needs to be heated and cured after extrusion to be formed from a viscous liquid to a solid state. Extrusion heating is usually carried out in an oven with a conveyor belt inside the oven. The extruded product is vulcanized and shaped during the transmission on the conveyor belt. Liquid silicone filaments tend to adhere to the lower contact surface during heating and vulcanization. After vulcanization and shaping, the silicone filaments need to be detached from the conveyor belt and continue to be transported to the next process. However, it is currently difficult for silicone filaments to be detached from the conveyor belt smoothly after curing. Therefore, it is necessary to reduce the bonding force between the liquid silicone filaments and the conveyor belt below them. Utility Model Content

[0003] The utility model aims at the above-mentioned problem, makes up for the deficiencies of the prior art, and provides a liquid silicone thread anti-sticking heating and curing device; the utility model can solve the problem that the liquid silicone thread is difficult to be smoothly separated from the conveyor belt after curing.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions.

[0005] The utility model provides a liquid silicone wire anti-sticking heating and curing device, comprising an oven main body, a base support, a conveyor belt, and a heating layer, the oven main body comprising an upper insulation board, a front insulation board, a lower insulation board, and a rear insulation board, the inner wall of the upper insulation board is provided with a heating layer, the conveyor belt is located inside the oven main body, the base support is connected to the bottom of the oven main body, and is characterized in that the belt body of the conveyor belt is made of polytetrafluoroethylene material, or the belt body surface of the conveyor belt is provided with an anti-sticking layer.

[0006] Furthermore, the anti-sticking layer is centrifugal paper, and the centrifugal paper is pasted on the surface of the conveyor belt.

[0007] Furthermore, the anti-sticking layer is talcum powder coated on the surface of the conveyor belt body.

[0008] Furthermore, the length of the conveyor belt is greater than the length of the oven body, the front end of the conveyor belt extending out of the oven body is a wire dropping portion, and the rear end of the conveyor belt extending out of the oven body is a wire drawing portion.

[0009] Furthermore, there are multiple oven bodies which are connected in sequence, and the conveyor belt passes through all the oven bodies at the same time. The part of the conveyor belt whose front end extends out of the first oven body is the wire dropping part, and the part of the conveyor belt whose rear end extends out of the last oven body is the wire drawing part.

[0010] Furthermore, the upper heat insulation board is hinged to the front heat insulation board or the rear heat insulation board.

[0011] Furthermore, a handle is provided on the outer wall of the upper heat insulation board.

[0012] The beneficial effects of the utility model.

[0013] The utility model can reduce the bonding force between the liquid silicone thread and the surface of the conveyor belt below it, so that the liquid silicone thread can be smoothly separated from the conveyor belt after being heated and vulcanized, so that it can be smoothly transported to the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a front section structural schematic diagram of the utility model.

[0017] Figure 3 It is a side view schematic diagram of the utility model.

[0018] Markings in the figure: 1 is the oven body, 2 is the base bracket, 3 is the conveyor belt, 4 is the heating layer, 5 is the upper insulation board, 6 is the front insulation board, 7 is the lower insulation board, 8 is the rear insulation board, 9 is the anti-sticking layer, 10 is the wire dropping part, 11 is the wire drawing part, and 12 is the handle. DETAILED DESCRIPTION

[0019] As shown in the accompanying drawings, this embodiment provides a liquid silicone wire anti-sticking heating and curing device, including an oven main body 1, a base support 2, a conveyor belt 3, and a heating layer 4.

[0020] The oven body 1 includes an upper insulation board 5, a front insulation board 6, a lower insulation board 7 and a rear insulation board 8. A heating layer 4 is arranged on the inner wall of the upper insulation board 5. The heating layer 4 is used to heat the silicone wire on the conveyor belt 3. The upper insulation board 5, the front insulation board 6, the lower insulation board 7 and the rear insulation board 8 play the role of heat insulation and reducing heat loss.

[0021] The conveyor belt 3 is located inside the oven body 1. A plurality of oven bodies 1 can be sequentially spliced ​​into a longer whole according to actual conditions.

[0022] The length of the conveyor belt 3 is greater than that of the oven body 1 . The front end of the conveyor belt 3 extending out of the oven body 1 is a wire dropping portion 10 , and the rear end of the conveyor belt 3 extending out of the oven body 1 is a wire drawing portion 11 .

[0023] Alternatively, when multiple oven bodies 1 are spliced ​​together in sequence, the conveyor belt 3 passes through all the oven bodies 1 at the same time, the length of the conveyor belt 3 is greater than the length of the whole spliced ​​together oven bodies 1, the front end of the conveyor belt 3 extending out of the outside of the first oven body 1 is the wire dropping part 10, and the rear end of the conveyor belt 3 extending out of the outside of the last oven body 1 is the wire drawing part 11.

[0024] The wire dropping part 10 is used for the conveyor belt 3 to receive the falling silicone wires, and the wire picking part 11 is used for picking up the silicone wires after being heated, vulcanized and shaped.

[0025] The upper insulation board 5 is hinged with the front insulation board 6 or the rear insulation board 8, so that the upper insulation board 5 can be opened to observe and process the silicone wire on the conveyor belt 3. A handle 12 is provided on the outer wall of the upper insulation board 5 for convenient operation.

[0026] The base bracket 2 is connected to the bottom of the oven body 1, and the operation of the operator is facilitated by setting the base bracket 2 at different heights.

[0027] In order to make it easier for the silicone wire to be detached from the conveyor belt 3 after being heated, vulcanized and shaped, the belt body of the conveyor belt 3 is made of polytetrafluoroethylene, or an anti-sticking layer 9 is provided on the surface of the belt body of the conveyor belt 3.

[0028] The anti-sticking layer 9 can be centrifugal paper, which is pasted on the belt surface of the conveyor belt 3.

[0029] The anti-sticking layer 9 can also be talcum powder coated on the surface of the conveyor belt 3.

[0030] The following are the examples

[0031] An actual production example is as follows:

[0032] To produce 37# silicone wire, set the single extrusion speed to 0.5m / s, the vulcanization temperature to 160℃, the primary shaping vulcanization time to 6s, and the length of the vulcanization line in this section to: L=vt=0.5×6=3m.

[0033] Three 1-meter-long oven main bodies 1 are sequentially spliced ​​to form a whole with a total length of 3 meters, and the total length of the heating layer 4 is 3 meters.

[0034] The length of the conveyor belt 3 is set to 3.2 m, and both ends are 0.1 m longer than the oven body 1. The front end has a 0.1 m drop portion 10, and the rear end has a 0.1 m pick-up portion 11.

[0035] The conveyor belt 3 speed adjustment range of the liquid silicone wire anti-sticking heating curing device is 0~2m / s, and the adjustment accuracy is 0.0001m / s.

[0036] The anti-sticking solution of silicone wire can be one of the following three options:

[0037] The first one is that the conveyor belt 3 is made of polytetrafluoroethylene material, which can reduce the bonding force between the liquid silicone wire and the surface of the conveyor belt 3 during primary vulcanization, making it easier to draw the wire.

[0038] The second method is to stick a layer of centrifugal paper on the surface of the conveyor belt 3 as an anti-sticking layer 9, which also serves to reduce the bonding force between the liquid silicone wire and the surface of the conveyor belt 3 during primary vulcanization, making it easier to draw the wire.

[0039] The third method is to apply talcum powder as an anti-sticking layer 9 on the surface of the conveyor belt 3, which also serves to reduce the bonding force between the liquid silicone wire and the surface of the conveyor belt 3 during primary vulcanization, making it easier to draw the wire.

[0040] The lower surface of the heating layer 4 and the upper surface of the conveyor belt 3 maintain a parallel gap of 0.05m for heating. The width of the heating plate is 0.2m, and multiple silicone wires can be extruded at the same time. The heating layer 4 adopts electric heating and has a temperature regulator. The temperature adjustment range is between 50 and 300°C.

[0041] The upper insulation board 5, the front insulation board 6, the lower insulation board 7 and the rear insulation board 8 of the oven body 1 are all 0.03m thick insulation layers, which are used to maintain a constant temperature environment and reduce heat loss.

[0042] The base support 2 is 0.85m high, which is convenient for personnel to operate.

[0043] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the implementation mode of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.

Claims

1. A liquid silicone wire anti-sticking heating curing device, comprising an oven body (1), a base support (2), a conveyor belt (3), and a heating layer (4), wherein the oven body (1) comprises an upper heat insulation board (5), a front heat insulation board (6), a lower heat insulation board (7), and a rear heat insulation board (8), a heating layer (4) is arranged on the inner wall of the upper heat insulation board (5), the conveyor belt (3) is located inside the oven body (1), and the base support (2) is connected to the bottom of the oven body (1), characterized in that: The belt body of the conveyor belt (3) is made of polytetrafluoroethylene, or the surface of the belt body of the conveyor belt (3) is provided with an anti-sticking layer (9).

2. A liquid silicone wire anti-sticking heating and curing device according to claim 1, characterized in that: The anti-sticking layer (9) is centrifugal paper, and the centrifugal paper is adhered to the surface of the conveyor belt (3).

3. The anti-sticking heating and curing device for liquid silicone wire according to claim 1 is characterized in that: The anti-sticking layer (9) is talcum powder applied to the surface of the conveyor belt (3).

4. The anti-sticking heating and curing device for liquid silicone wire according to claim 1 is characterized in that: The length of the conveyor belt (3) is greater than the length of the oven body (1); the portion of the conveyor belt (3) extending from the front end of the oven body (1) to the outside is the wire dropping portion (10); and the portion of the conveyor belt (3) extending from the rear end of the oven body (1) to the outside is the wire drawing portion (11).

5. The anti-sticking heating and curing device for liquid silicone wire according to claim 1 is characterized in that: The oven main bodies (1) are multiple and connected in sequence, and the conveyor belt (3) passes through all the oven main bodies (1) at the same time. The portion of the conveyor belt (3) extending from the front end of the first oven main body (1) to the outside is the wire dropping portion (10), and the portion of the conveyor belt (3) extending from the rear end of the last oven main body (1) to the outside is the wire drawing portion (11).

6. The anti-sticking heating and curing device for liquid silicone wire according to claim 1 is characterized in that: The upper heat insulation board (5) is hinged to the front heat insulation board (6) or the rear heat insulation board (8).

7. The anti-sticking heating and curing device for liquid silicone wire according to claim 6, characterized in that: The outer wall of the upper heat insulation board (5) is provided with a handle (12).

Images