Coating device for foaming silica gel film

Abstract

The coating device comprises a gluing roller, a glue pressing roller, an extrusion assembly and a film passing roller, the gluing roller and the film passing roller are arranged in a left-right spaced mode, the glue pressing roller is located on the upper right portion of the gluing roller and arranged in a spaced mode, the extrusion assembly is located above the gluing roller and located on the left side of the glue pressing roller, and the extrusion end of the extrusion assembly faces the gluing roller; the extrusion assembly comprises a plurality of extruders, guide rods, a driving rod and a driving assembly, the plurality of extruders are arranged at intervals, guide holes and fixing holes are formed in the extruders, the guide rods sequentially penetrate through the plurality of guide holes, and the fixing holes sequentially penetrate through the plurality of fixing holes and are connected with the extruders; the driving assembly drives the driving rod and the extruder to reciprocate in the axis direction of the driving rod, and by the adoption of the device of the scheme, waste of raw materials is little, and discharging can be conducted according to the film thickness.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating equipment, and particularly relates to a coating device for a foamed silica gel film. Background Art

[0002] At present, the coating equipment for films is mainly used for surface coating of films, that is, coating a layer of film to make it have more excellent properties or obtain different functions, such as fire prevention, heat insulation and other functions. The existing coating devices generally adopt an intermittent arrangement of a sizing roller and a film passing roller. One side of the sizing roller is in contact with a glue bin. The sizing roller contacts the raw material after passing through the glue bin, and then the excess raw material is scraped off by a scraper, and then compounded between the sizing roller and the film passing roller. There is a problem with this method. The raw material stays in the glue bin for a long time, and some bottom raw materials will stay in the glue bin for a long time and are not used. Subsequently, when filling, it will affect the ratio of the new raw material, and there is more raw material waste. In view of this, this solution came into being. Content of the Utility Model

[0003] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a coating device for a foamed silica gel film, which can extrude as much raw material as needed.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a coating device for a foamed silica gel film, including a sizing roller, a pressure roller, an extrusion assembly and a film passing roller. The sizing roller and the film passing roller are arranged at intervals left and right. The pressure roller is located above and to the right of the sizing roller and is arranged at intervals. The extrusion assembly is located above the sizing roller and to the left of the pressure roller. The extrusion end of the extrusion assembly faces the sizing roller;

[0005] The extrusion assembly includes a plurality of extruders, guide rods, driving rods and a driving assembly. The plurality of extruders are arranged at intervals. The extruder has a guiding hole and a fixing hole. The guide rod sequentially passes through a plurality of guiding holes. The fixing hole sequentially passes through a plurality of fixing holes and is connected to the extruder. The driving assembly drives the driving rod and the extruder to move reciprocally along the axis direction of the driving rod.

[0006] Further, the extrusion assembly further includes a left fixing table and a right fixing table. The left fixing table and the right fixing table form a through hole. The guide rod passes through the through hole. The left fixing table and the right fixing table are respectively located on both sides of the extruder. The left fixing table and the right fixing table and the extruder are connected by bolts. The left fixing table and the right fixing table are detachably connected to the driving rod.

[0007] Further, a ring extending outward is formed on the end faces of the left fixing table and the right fixing table. The ring is provided with first threaded holes, and the driving rod is provided with a plurality of second threaded holes arranged at intervals. The first threaded holes and the second threaded holes are connected by bolts or pins.

[0008] Further, the coating device further includes a cooling fan, which is located below between the glue application roller and the film passing roller, and the air outlet of the cooling fan faces between the glue application roller and the film passing roller.

[0009] Further, an air cavity is formed inside the film passing roller, and a plurality of air channels are formed between the surface of the film passing roller and the air cavity. An air suction hole is formed at one end of the air cavity, and the air hole is communicated with an air pump.

[0010] Further, a breathable fabric is attached to the circumferential surface of the film passing roller.

[0011] Further, a metal mesh is attached to the circumferential surface of the film passing roller.

[0012] Further, the driving assembly is two cylinders, and the two cylinders are respectively connected to both ends of the driving rod, and the two cylinders are controlled by a synchronizer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, the raw material is extruded from the extrusion assembly above the left upper part of the glue application roller. The extrusion assembly drives the driving rod and the extruder to reciprocate through the driving assembly, so that the raw material is horizontally laid on the upper surface of the glue application roller, and then undergoes a primary extrusion through the pressure glue roller, so that the film to be coated is preliminarily fixed in thickness, and then passes between the glue application roller and the film passing roller. The raw material is coated on the semi-finished product film and then cooled and shaped for winding; the driving assembly is used to drive the extruder to reciprocate, so that the number of extruders does not need to be set too many, saving the manufacturing cost, and the extruder is used for extrusion, which can be set according to the requirements of the coating thickness, and there will be no phenomenon of raw material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the principle structure of a coating device for a foamed silicone film of the present invention;

[0016] Figure 2 is a schematic cross-sectional structure diagram of the film passing roller in the present invention;

[0017] Figure 3 is a schematic three-dimensional structure diagram of the extrusion assembly in the present invention;

[0018] Figure 4 is a front view structure diagram of the extrusion assembly in the present invention.

[0019] Markings in the figure: 1. Gluing roller; 2. Rubber pressing roller; 3. Extrusion assembly; 31. Extruder; 32. Guide rod; 33. Driving rod; 34. Left fixing table; 341. Ring; 35. Right fixing table; 36. Cylinder; 4. Cooling fan; 5. Film passing roller; 51. Air cavity; 52. Air passage; 53. Breathable fabric. Specific implementation mode

[0020] In order to make the above features and advantages of the present utility model more obvious and understandable, specific embodiments are hereinafter given and described in detail in conjunction with the accompanying drawings.

[0021] As Figures 1 - 4 shown, this embodiment provides a coating device for a foamed silica gel film, including a gluing roller 1, a rubber pressing roller 2, an extrusion assembly 3, a cooling fan 4 and a film passing roller 5.

[0022] The gluing roller 1 and the film passing roller 5 are arranged at intervals left and right. The film passing roller 5 has an air cavity 51 inside. A plurality of air passages 52 are formed between the surface of the film passing roller 5 and the air cavity 51. One end of the air cavity 51 forms an air suction hole, and the air hole is communicated with an air pump. A breathable fabric 53 is attached to the circumferential surface of the film passing roller 5. During the coating process, the air pump operates, and the air cavity 51 forms a low-pressure chamber. The semi-finished film passing through will be tightly adsorbed on the surface of the film passing roller 5, so that the surface of the coated film is flat and the quality is better.

[0023] Preferably, a metal mesh is attached to the circumferential surface of the film passing roller 5. When it is necessary to press patterns on the surface of the semi-finished film, patterns can be set on the metal mesh, and 3D patterns can be pressed on the surface of the semi-finished film through the principle of rolling and low-pressure adsorption.

[0024] The pressure rubber roller 2 is located at the upper right of the upper rubber roller 1 and is spaced apart. The extrusion assembly 3 is located above the upper rubber roller 1 and on the left side of the pressure rubber roller 2. The extrusion end of the extrusion assembly 3 faces the upper rubber roller 1. The extrusion assembly 3 includes a plurality of extruders 31, guide rods 32, a driving rod 33, a left fixing table 34, a right fixing table 35, and a driving assembly. The plurality of extruders 31 are spaced apart. Each extruder 31 has two guiding holes and fixing holes. Each guide rod 32 sequentially passes through the plurality of guiding holes. The fixing holes sequentially pass through the plurality of fixing holes and are connected to the extruder 31. Specifically, the left fixing table 34 and the right fixing table 35 are formed with through holes, and the guide rods 32 pass through the through holes. The left fixing table 34 and the right fixing table 35 are respectively located on both sides of the extruder 31. The left fixing table 34 and the right fixing table 35 are connected to the extruder 31 by bolts. The left fixing table 34 and the right fixing table 35 are detachably connected to the driving rod 33. The end faces of the left fixing table 34 and the right fixing table 35 are formed with an outwardly extending ring 341. The ring 341 has a first threaded hole. The driving rod 33 has a plurality of spaced second threaded holes. The first threaded hole and the second threaded hole are connected by bolts or pins. The driving assembly drives the driving rod 33 and the extruder 31 to reciprocate along the axis direction of the driving rod 33. Specifically, the driving assembly is two cylinders 36. The two cylinders 36 are respectively connected to both ends of the driving rod 33. The two cylinders 36 are controlled by a synchronizer.

[0025] The cooling fan 4 is located below between the upper rubber roller 1 and the film passing roller 5. The air outlet of the cooling fan 4 faces between the upper rubber roller 1 and the film passing roller 5. The cooling fan 4 is used to cool the coated film to make it shaped.

[0026] Working principle: The raw material is extruded from the extrusion assembly 3 at the upper left of the upper rubber roller 1. The extrusion assembly 3 drives the driving rod 33 and the extruder 31 to reciprocate through the driving assembly, so that the raw material is horizontally laid on the upper surface of the upper rubber roller 1. Then it passes through the pressure rubber roller 2 for primary extrusion, so that the film to be coated is preliminarily thickness-fixed. Then it passes between the upper rubber roller 1 and the film passing roller 5. The raw material is coated on the semi-finished film and then cooled and shaped and then wound up. By using the driving assembly to drive the extruder 31 to reciprocate, the number of extruders 31 does not need to be set too many, saving the manufacturing cost. And using the extruder 31 for material extrusion can be set according to the requirements of the coating thickness, and there will be no phenomenon of raw material waste.

[0027] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present invention, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A coating device for a foamed silicone film, characterized in that: It includes a sizing roller, a pressure rubber roller, an extrusion assembly and a film passing roller. The sizing roller and the film passing roller are arranged at intervals left and right. The pressure rubber roller is located above and to the upper right of the sizing roller and is arranged at intervals. The extrusion assembly is located above the sizing roller and to the left of the pressure rubber roller. The extrusion end of the extrusion assembly faces the sizing roller; The extrusion assembly includes a plurality of extruders, guide rods, a driving rod and a driving assembly. The plurality of extruders are arranged at intervals. The extruder has a guide hole and a fixing hole. The guide rod sequentially passes through a plurality of guide holes. The fixing hole sequentially passes through a plurality of fixing holes and is connected to the extruder. The driving assembly drives the driving rod and the extruder to move reciprocally along the axis direction of the driving rod.

2. The coating device for a foamed silicone film according to claim 1, characterized in that: The extrusion assembly further includes a left fixing table and a right fixing table. The left fixing table and the right fixing table form a through hole. The guide rod passes through the through hole. The left fixing table and the right fixing table are respectively located on both sides of the extruder. The left fixing table and the right fixing table and the extruder are connected by bolts. The left fixing table and the right fixing table and the driving rod are detachably connected.

3. The coating device for a foamed silica gel film according to claim 2, characterized in that: The end face of the left fixing table and the end face of the right fixing table form a ring extending outward. The ring has a first threaded hole. The driving rod has a plurality of second threaded holes arranged at intervals. The first threaded hole and the second threaded hole are connected by bolts or pins.

4. The coating device for foamed silicone film according to claim 1, characterized in that: The coating device further includes a cooling fan. The cooling fan is located below between the sizing roller and the film passing roller. The air outlet of the cooling fan faces between the sizing roller and the film passing roller.

5. The coating device for a foamed silica gel film according to claim 1, characterized in that: The film passing roller has an air cavity inside. A plurality of air channels are formed between the surface of the film passing roller and the air cavity. One end of the air cavity forms a suction hole. The air hole is communicated with an air pump.

6. The coating device for a foamed silicone film according to claim 5, wherein: A breathable fabric is attached to the circumferential surface of the film passing roller.

7. The coating device for a foamed silica gel film according to claim 5, wherein: A metal mesh is attached to the circumferential surface of the film passing roller.

8. The coating device for a foamed silicone film according to claim 1, characterized in that: The driving assembly is two cylinders. The two cylinders are respectively connected to both ends of the driving rod. The two cylinders are controlled by a synchronizer.

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