Silica gel foaming device

Abstract

The utility model relates to the technical field of silica gel production, in particular to a silica gel foaming device which comprises a base, the base is provided with a calendering mechanism, a coating mechanism and a baking mechanism; the calendering mechanism is arranged between the coating mechanism and the baking mechanism; the calendaring mechanism comprises a fixed seat and a calendaring roller; an accommodating cavity is formed in the calendering roller; a middle sealing plate is fixedly arranged in the middle of the accommodating cavity; the accommodating cavity is provided with a first oil cavity and a second oil cavity; the first oil cavity is provided with a first corrugated pipe air bag; the second oil cavity is provided with a second corrugated pipe air bag. By controlling the air pressure in the first corrugated pipe air bag and the air pressure of the second corrugated pipe air bag, the length of the first oil cavity in the axial direction and the length of the second oil cavity in the axial direction can be changed, the width of a heating area of the rolling shaft can be changed, and energy is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of silica gel production, in particular to a silica gel foaming device. Background Art

[0002] During the foaming process of liquid silicone, the calender roller needs to be kept at a constant temperature. Therefore, an oil channel is opened in the existing calender roller, and the calender roller is heated by passing heat-conducting oil at a high temperature outside into the calender roller. Since there are many production specifications of silicone foam film, the width of the silicone coating is often adjusted in actual production to produce silicone foam films of different specifications. When producing silicone foam films with a narrow width, the idle parts on both sides of the calender roller do not need to be heated. On the contrary, the surface of the calender roller will transfer heat to the outside, causing energy waste. Utility Model Content

[0003] The purpose of the utility model is to provide a silica gel foaming device in view of the above-mentioned deficiencies in the prior art.

[0004] The purpose of the utility model is achieved through the following technical solutions: a silica gel foaming device, comprising a base; the base is provided with a calendering mechanism, a coating mechanism and a baking mechanism; the calendering mechanism is arranged between the coating mechanism and the baking mechanism;

[0005] The calendering mechanism includes a fixed seat and a calendering roller rotatably arranged on the fixed seat; a receiving cavity is arranged in the calendering roller; a middle closing plate is fixedly arranged in the middle of the receiving cavity;

[0006] A first closing plate is movably provided at one end of the accommodating cavity along the length direction of the calendering roller; a first oil cavity is formed between the first closing plate and the middle closing plate; a first bellows airbag is provided between the first closing plate and the middle closing plate;

[0007] A second closing plate is movably provided at the other end of the accommodating cavity along the length direction of the calendering roller; a second oil cavity is formed between the second closing plate and the middle closing plate; and a second bellows airbag is provided between the second closing plate and the middle closing plate.

[0008] The utility model is further configured as follows: the fixed seat includes a first fixed seat and a second fixed seat; the two ends of the calendering roller are rotatably arranged on the first fixed seat and the second fixed seat respectively; the first fixed seat is provided with a first end shaft; one end of the calendering roller is connected to the first end shaft; the second fixed seat is provided with a second end shaft; the other end of the calendering roller is connected to the second end shaft.

[0009] The utility model is further configured that the first fixing seat is provided with a first oil distributor; the first closing plate is provided with a first oil passage communicating with the first oil chamber; a first hose is provided between the first oil distributor and the first oil passage;

[0010] The second fixing seat is provided with a second oil distribution block; the second closing plate is provided with a second oil passage communicating with the second oil chamber; a second hose is provided between the second oil distribution block and the second oil passage.

[0011] The utility model is further configured that a first air pipe and a second air pipe are provided in the accommodating cavity; one end of the first air pipe is passed through the first oil distribution block; the first closing plate is movably provided at the other end of the first air pipe; the first air pipe is communicated with the first bellows airbag; the first bellows airbag is provided in the first oil cavity;

[0012] One end of the second air pipe is passed through the second oil distribution block; the second closing plate is movably arranged at the other end of the second air pipe; the second air pipe is connected with the second bellows airbag; the second bellows airbag is arranged in the second oil chamber.

[0013] The utility model is further configured such that the first hose is wound around the outside of the first air pipe.

[0014] The utility model is further configured such that the second hose is wound around the outside of the second air pipe.

[0015] The utility model is further configured that the calendering mechanism also includes a first heat insulation cover; the first heat insulation cover is movably sleeved on the outside of one end of the calendering roller along the length direction of the calendering roller; the inner wall of the first heat insulation cover is provided with a first magnetic ring; the first closing plate is provided with a plurality of first permanent magnets that cooperate with the first magnetic ring along the circumferential direction.

[0016] The utility model is further configured that the calendering mechanism also includes a second heat insulation cover; the second heat insulation cover is movably sleeved on the other end of the calendering roller along the length direction of the calendering roller; the inner wall of the second heat insulation cover is provided with a second magnetic ring; and the second closing plate is provided with a plurality of second permanent magnets that cooperate with the second magnetic ring along the circumferential direction.

[0017] The beneficial effects of the utility model: the utility model can change the axial length of the first oil chamber and the axial length of the second oil chamber by controlling the air pressure in the first bellows airbag and the air pressure change of the second bellows airbag, thereby changing the width of the heating area of ​​the calendering shaft and effectively saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2It is a structural schematic diagram of the calendering mechanism of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the calendering mechanism of the utility model from another perspective;

[0022] Figure 4 It is a cross-sectional view of the calendering mechanism of the utility model;

[0023] Among them: 1. base; 11. coating mechanism; 12. baking mechanism; 13. calendering mechanism; 2. calendering roller; 21. accommodating chamber; 22. middle closing plate; 3. first closing plate; 31. first oil chamber; 32. first oil channel; 33. first hose; 34. first permanent magnet; 4. first bellows airbag; 41. first air pipe; 5. second closing plate; 51. second oil chamber; 52. second oil channel; 53. second hose; 54. second permanent magnet; 6. second bellows airbag; 61. second air pipe; 71. first fixed seat; 72. second fixed seat; 73. first end shaft; 74. second end shaft; 75. first oil distributor; 76. second oil distributor; 8. first heat insulation cover; 81. first magnetic ring; 9. second heat insulation cover; 91. second magnetic ring. DETAILED DESCRIPTION

[0024] The utility model is further described in conjunction with the following embodiments.

[0025] Depend on Figures 1 to 4 It can be seen that the silica gel foaming device described in this embodiment includes a base 1; the base 1 is provided with a calendering mechanism 13, a coating mechanism 11 and a baking mechanism 12; the calendering mechanism 11 is provided between the coating mechanism 11 and the baking mechanism 12;

[0026] The calendering mechanism 13 includes a fixed seat and a calendering roller 2 rotatably mounted on the fixed seat; a receiving chamber 21 is provided in the calendering roller 2; a middle closing plate 22 is fixedly provided in the middle of the receiving chamber 21;

[0027] A first closing plate 3 is movably provided at one end of the accommodating cavity 21 along the length direction of the calendering roller 2; a first oil cavity 31 is formed between the first closing plate 3 and the middle closing plate 22; a first bellows airbag 4 is provided between the first closing plate 3 and the middle closing plate 22;

[0028] A second closing plate 5 is movably provided at the other end of the accommodating cavity 21 along the length direction of the calendering roller 2 ; a second oil cavity 51 is formed between the second closing plate 5 and the middle closing plate 22 ; a second bellows airbag 6 is provided between the second closing plate 5 and the middle closing plate 22 .

[0029] Specifically, the first bellows airbag 4 and the second bellows airbag 6 of the silicone foaming device described in this embodiment are both made of elastic deformation materials and can be expanded or contracted according to changes in air pressure. In addition, the roller surface corresponding to the first oil chamber 31 and the second oil chamber 51 forms a heating area during the heating process of the heat transfer oil.

[0030] When in use, firstly, the air pressure in the first bellows airbag 4 and the air pressure in the second bellows airbag 6 are controlled. When the air pressure in the first bellows airbag 4 and the air pressure in the second bellows airbag 6 are reduced, the first bellows airbag 4 and the second bellows airbag 6 are contracted, and the first closing plate 3 and the second closing plate 5 are respectively moved toward the direction close to the middle closing plate 22, thereby reducing the axial length of the first oil chamber 31 and the axial length of the first oil chamber 31, so that the width of the heating area of ​​the calendering roller 2 is reduced.

[0031] When the air pressure in the first bellows airbag 4 and the air pressure in the second bellows airbag 6 increase, the first bellows airbag 4 and the second bellows airbag 6 expand, and the first closing plate 3 and the second closing plate 5 respectively move away from the middle closing plate 22, thereby increasing the axial length of the first oil chamber 31 and the axial length of the first oil chamber 31, so that the width of the heating area of ​​the calendering roller 2 increases.

[0032] When in use, the liquid silicone is first coated on the bottom composite film by the coating mechanism 11, and then the bottom composite film is attached to the bottom composite film and calendered through the heating area of ​​the calendering roller 2. After calendering, it enters the baking mechanism 12 for baking, thereby completing the foaming of the liquid silicone.

[0033] The present embodiment describes a silicone foaming device, wherein the fixed seat comprises a first fixed seat 71 and a second fixed seat 72; the two ends of the calendering roller 2 are rotatably disposed on the first fixed seat 71 and the second fixed seat 72 respectively; the first fixed seat 71 is provided with a first end shaft 73; one end of the calendering roller 2 is connected to the first end shaft 73; the second fixed seat 72 is provided with a second end shaft 74; the other end of the calendering roller 2 is connected to the second end shaft 74.

[0034] Specifically, through the above arrangement, the calendering roller 2 can stably rotate between the first fixing seat 71 and the second fixing seat 72 .

[0035] In the silicone foaming device described in this embodiment, the first fixing seat 71 is provided with a first oil distribution block 75; the first closing plate 3 is provided with a first oil passage 32 communicating with the first oil chamber 31; a first hose 33 is provided between the first oil distribution block 75 and the first oil passage 32;

[0036] The second fixing seat 72 is provided with a second oil distribution block 76 ; the second closing plate 5 is provided with a second oil passage 52 communicating with the second oil chamber 51 ; a second hose 53 is provided between the second oil distribution block 76 and the second oil passage 52 .

[0037] Specifically, through the above-mentioned arrangement, the heat transfer oil in the first oil channel 32 can be extracted through the first hose 33, and the heat transfer oil can also be injected into the first oil channel 32; the heat transfer oil in the second oil channel 52 can be extracted through the second hose 53, and the heat transfer oil can also be injected into the second oil channel 52.

[0038] In the silicone foaming device described in this embodiment, a first air pipe 41 and a second air pipe 61 are provided in the accommodating chamber 21; one end of the first air pipe 41 is passed through the first oil separation block 75; the first closing plate 3 is movably provided at the other end of the first air pipe 41; the first air pipe 41 is communicated with the first bellows airbag 4; the first bellows airbag 4 is provided in the first oil chamber 31;

[0039] One end of the second air pipe 61 is passed through the second oil distribution block 76 ; the second closing plate 5 is movably disposed at the other end of the second air pipe 61 ; the second air pipe 61 is connected to the second bellows airbag 6 ; the second bellows airbag 6 is disposed in the second oil chamber 51 .

[0040] Specifically, through the above-mentioned arrangement, the first air pipe 41 and the second air pipe 61 can be connected to the external air pump respectively, so that the first bellows airbag 4 and the second bellows airbag 6 can be inflated or evacuated, so that the first bellows airbag 4 and the second bellows airbag 6 can be expanded or contracted to change the axial length of the first oil chamber 31 and the axial length of the first oil chamber 31, thereby changing the width of the heating area of ​​the calendering shaft and effectively saving energy.

[0041] In the silicone foaming device described in this embodiment, the first hose 33 is arranged around the outside of the first air pipe 41. The above arrangement makes the overall structure stable and reliable.

[0042] In the silicone foaming device described in this embodiment, the second hose 53 is arranged around the second air pipe 61. The above arrangement makes the overall structure stable and reliable.

[0043] In the silicone foaming device described in this embodiment, the calendering mechanism 13 further includes a first heat insulation cover 8; the first heat insulation cover 8 is movably sleeved outside one end of the calendering roller 2 along the length direction of the calendering roller 2; the inner wall of the first heat insulation cover 8 is provided with a first magnetic ring 81; the first closing plate 3 is provided with a plurality of first permanent magnets 34 that cooperate with the first magnetic ring 81 along the circumferential direction. Specifically, through the above arrangement, during the movement of the first closing plate 3, the first heat insulation cover 8 can be driven to move, so as to cover and insulate the roller surface outside the heating area, thereby reducing heat loss and reducing production energy consumption.

[0044] In the silicone foaming device described in this embodiment, the calendering mechanism 13 further includes a second heat-insulating cover 9; the second heat-insulating cover 9 is movably sleeved outside the other end of the calendering roller 2 along the length direction of the calendering roller 2; the inner wall of the second heat-insulating cover 9 is provided with a second magnetic ring 91; the second closing plate 5 is provided with a plurality of second permanent magnets 54 that cooperate with the second magnetic ring 91 along the circumferential direction. Specifically, through the above arrangement, during the movement of the second closing plate 5, the second heat-insulating cover 9 can be driven to move, so as to cover and insulate the roller surface outside the heating area, thereby reducing heat loss and reducing production energy consumption.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A silica gel foaming device, characterized in that: The invention comprises a base (1); the base (1) is provided with a calendering mechanism (13), a coating mechanism (11) and a baking mechanism (12); the calendering mechanism (13) is arranged between the coating mechanism (11) and the baking mechanism (12); The calendering mechanism (13) comprises a fixed seat and a calendering roller (2) rotatably arranged on the fixed seat; a receiving chamber (21) is arranged in the calendering roller (2); a middle closing plate (22) is fixedly arranged in the middle of the receiving chamber (21); A first closing plate (3) is movably provided at one end of the accommodating cavity (21) along the length direction of the calendering roller (2); a first oil cavity (31) is formed between the first closing plate (3) and the middle closing plate (22); a first bellows airbag (4) is provided between the first closing plate (3) and the middle closing plate (22); A second closing plate (5) is movably provided at the other end of the accommodating cavity (21) along the length direction of the calendering roller (2); a second oil cavity (51) is formed between the second closing plate (5) and the middle closing plate (22); and a second bellows airbag (6) is provided between the second closing plate (5) and the middle closing plate (22).

2. A silica gel foaming device according to claim 1, characterized in that: The fixed seat comprises a first fixed seat (71) and a second fixed seat (72); the two ends of the calendering roller (2) are rotatably arranged on the first fixed seat (71) and the second fixed seat (72) respectively; the first fixed seat (71) is provided with a first end shaft (73); one end of the calendering roller (2) is connected to the first end shaft (73); the second fixed seat (72) is provided with a second end shaft (74); the other end of the calendering roller (2) is connected to the second end shaft (74).

3. A silica gel foaming device according to claim 2, characterized in that: The first fixing seat (71) is provided with a first oil distribution block (75); the first closing plate (3) is provided with a first oil passage (32) communicating with the first oil chamber (31); a first hose (33) is provided between the first oil distribution block (75) and the first oil passage (32); The second fixing seat (72) is provided with a second oil distribution block (76); the second closing plate (5) is provided with a second oil passage (52) communicating with the second oil chamber (51); and a second hose (53) is provided between the second oil distribution block (76) and the second oil passage (52).

4. A silica gel foaming device according to claim 3, characterized in that: A first air pipe (41) and a second air pipe (61) are provided in the accommodating chamber (21); one end of the first air pipe (41) is inserted into a first oil distributor (75); the first closing plate (3) is movably provided at the other end of the first air pipe (41); the first air pipe (41) is connected to a first bellows airbag (4); the first bellows airbag (4) is provided in the first oil chamber (31); One end of the second air pipe (61) is inserted into the second oil distribution block (76); the second closing plate (5) is movably arranged at the other end of the second air pipe (61); the second air pipe (61) is connected to the second bellows airbag (6); and the second bellows airbag (6) is arranged in the second oil chamber (51).

5. A silica gel foaming device according to claim 4, characterized in that: The first hose (33) is arranged around the outside of the first air pipe (41).

6. A silica gel foaming device according to claim 4, characterized in that: The second hose (53) is arranged around the outside of the second air pipe (61).

7. The silica gel foaming device according to claim 1, characterized in that: The calendering mechanism (13) further comprises a first heat-insulating cover (8); the first heat-insulating cover (8) is movably sleeved outside one end of the calendering roller (2) along the length direction of the calendering roller (2); a first magnetic ring (81) is provided on the inner wall of the first heat-insulating cover (8); and a plurality of first permanent magnets (34) cooperating with the first magnetic ring (81) are provided on the first closing plate (3) along the circumferential direction.

8. The silica gel foaming device according to claim 1, characterized in that: The calendering mechanism (13) further comprises a second heat-insulating cover (9); the second heat-insulating cover (9) is movably sleeved outside the other end of the calendering roller (2) along the length direction of the calendering roller (2); a second magnetic ring (91) is provided on the inner wall of the second heat-insulating cover (9); and a plurality of second permanent magnets (54) cooperating with the second magnetic ring (91) are provided on the second closing plate (5) along the circumferential direction.

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