Film coating device for plastic film production

Abstract

This utility model discloses a coating device for plastic film production, including an auxiliary component. The auxiliary component includes a main shaft rotatably mounted inside a support and parallel to a coating roller. A scraper is detachably mounted on one side of the main shaft, and a dust-adhesive roll is detachably and rotatably mounted on the other side. Rotation of the main shaft causes either the scraper or the dust-adhesive roll to contact the coating roller. Through this auxiliary component, before the adhesive is sprayed onto the surface of the coating roller from the nozzle, the dust-adhesive roll can be brought close to and in contact with the coating roller by rotating the main shaft. The rotation of the coating roller drives the dust-adhesive roll to rotate, cleaning dust and other contaminants from the surface of the coating roller. The dust-adhesive roll can be an electrostatic adsorption film or a low-tack adhesive tape, serving to remove dust and prevent impurities from being mixed into the adhesive applied to the film, thus ensuring a good coating effect.

Description

Technical Field

[0001] This utility model belongs to the field of plastic film production technology, and in particular relates to a coating device for plastic film production. Background Technology

[0002] Plastic film production requires covering its surface with a layer of oil paper, thus necessitating the use of a laminating device.

[0003] In the prior art, such as the patent application with authorization announcement number CN220464502U, a coating device for PE plastic film production is disclosed. The device uses a diversion box to allow the glue inside the glue cylinder to flow to the periphery of the coating roller, thereby quickly coating the film body and improving the coating efficiency. At the same time, the scraper plate scrapes the coating roller, which can more thoroughly and evenly coat the upper part of the film, thus improving the overall coating.

[0004] However, the above-mentioned existing technology still has the following disadvantages: before the glue is evenly applied to the surface of the laminating roller, there may be impurities on the outer surface of the laminating roller. These impurities may be mixed into the glue, which will affect the laminating effect. Utility Model Content

[0005] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0006] This utility model provides a coating device for plastic film production, comprising:

[0007] The conveyor table, the support, and the glue application assembly are provided. The support is located on the upper part of the conveyor table, the glue application assembly is located on the support, and a film coating roller is rotatably arranged inside the support. The glue application assembly applies glue to the surface of the film coating roller.

[0008] An auxiliary component is provided on one side of the coating roller. The auxiliary component includes a main shaft rotatably disposed inside the bracket and parallel to the coating roller. A scraper is detachably disposed on one side of the main shaft, and a dust roll is detachably and rotatably disposed on the other side of the main shaft. The main shaft rotates so that the scraper contacts the coating roller or the dust roll contacts the coating roller.

[0009] As a preferred embodiment of the above technical solution, both the scraper and the dust roll are provided with a mounting bracket at one end near the main shaft. The dust roll is rotatably engaged with the mounting bracket on its side, and the scraper is fixedly engaged with the mounting bracket on its side. Insertion cylinders are provided on both sides of the main shaft, and a connecting rod is provided on the mounting bracket at the position corresponding to the insertion cylinder. The connecting rod is inserted into the insertion cylinder at the corresponding position.

[0010] As a preferred embodiment of the above technical solution, a magnet is provided inside the plug-in tube, and a magnet is provided at the end of the connecting rod away from the mounting frame, and the magnet and the magnet can attract each other.

[0011] As a preferred embodiment of the above technical solution, the adhesive coating assembly includes an adhesive storage box disposed on the top of the support, an adhesive outlet end of the adhesive storage box is provided with a diversion pipe, the other end of the diversion pipe is provided with a diversion box, and a plurality of spray nozzles are evenly spaced at the bottom of the diversion box, the plurality of spray nozzles being located above the coating roller.

[0012] As a preferred embodiment of the above technical solution, a motor 1 and a motor 2 are provided on the outer side wall of the bracket. The motor 1 is connected to one shaft end of the coating roller, and the motor 2 is connected to one end of the main shaft.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention, through the provision of auxiliary components, allows the dust-adhesive roll to approach and contact the laminating roller by rotating the main shaft before the adhesive is sprayed onto the surface of the laminating roller through the nozzle. The rotation of the laminating roller drives the dust-adhesive roll to rotate, and the dust-adhesive roll cleans the dust and other debris from the surface of the laminating roller. The dust-adhesive roll can be an electrostatic adsorption film or a low-tack tape, which serves to clean dust and prevent impurities from being mixed into the adhesive applied to the film, thus ensuring the laminating effect. Attached Figure Description

[0015] Figure 1 The diagram shown is a front view of the overall coating device in the embodiment;

[0016] Figure 2 The diagram shown is a schematic representation of the structure inside the support in the embodiment (front view).

[0017] Figure 3 The diagram shown is a top view of the structure of the guide roller and the scraper in the embodiment.

[0018] Figure 4 The diagram shown is a structural schematic of the connection between the plug-in sleeve and the connecting rod in the embodiment;

[0019] Figure 5 The diagram shown is a side view of the flow divider box and nozzle.

[0020] Reference numerals: 10, conveyor table; 20, support; 21, coating roller; 22, motor one; 30, glue application assembly; 31, glue storage box; 32, distributor pipe; 33, distributor box; 34, spray nozzle; 41, main shaft; 42, scraper blade; 43, dust roll; 44, connector cylinder; 441, magnet one; 45, connecting rod; 451, magnet two; 46, mounting bracket; 47, motor two. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example

[0023] like Figure 1 , Figure 2 As shown, Figure 1 The diagram shown is a front view of the overall coating device in the embodiment; Figure 2 The diagram shown is a schematic representation of the structure inside the support in the embodiment (front view).

[0024] This device includes:

[0025] The conveyor table 10, the support 20, and the glue application assembly 30 are provided. The support 20 is located on the upper end of the conveyor table 10, the glue application assembly 30 is located on the support 20, and the film coating roller 21 is rotatably arranged inside the support 20.

[0026] The film is conveyed by the conveyor table 10, and the glue coating assembly 30 coats the glue onto the surface of the coating roller 21. The coating roller 21, coated with glue, covers the film with glue after the film passes through.

[0027] like Figure 2 , Figure 5 As shown, Figure 2 The diagram shown is a schematic representation of the structure inside the support in the embodiment (front view). Figure 5 The diagram shown is a side view of the flow divider box and nozzle.

[0028] The glue application assembly 30 includes a glue storage box 31 disposed on the top of the bracket 20. The glue outlet end of the glue storage box 31 is provided with a diversion pipe 32, and the other end of the diversion pipe 32 is provided with a diversion box 33. Multiple spray nozzles 34 are evenly spaced at the bottom of the diversion box 33, and the spray nozzles 34 are located above the coating roller 21.

[0029] The glue in the glue storage box 31 flows through the diversion pipe 32 to the diversion box 33, and is sprayed from the spray nozzle 34 onto the surface of the coating roller 21. Specifically, multiple spray nozzles 34 are arranged in a linear manner consistent with the length direction of the coating roller 21.

[0030] like Figure 2 , Figure 3 As shown, Figure 2 The diagram shown is a schematic representation of the structure inside the support in the embodiment (front view). Figure 3 The diagram shown is a top view of the structure of the guide roller and the scraper in the embodiment.

[0031] An auxiliary component is provided on one side of the coating roller 21. The auxiliary component includes a main shaft 41 that is rotatably disposed inside the bracket 20 and parallel to the coating roller 21. A scraper 42 is detachably disposed on one side of the main shaft 41, and a dust roll 43 is detachably and rotatably disposed on the other side. By rotating the main shaft 41, the scraper 42 or the dust roll 43 is made to contact the coating roller 21.

[0032] Before the glue is sprayed from the nozzle 34 onto the surface of the laminating roller 21, the dust roller 43 can be brought close to and in contact with the laminating roller 21 by rotating the main shaft 41. The rotation of the laminating roller 21 drives the dust roller 43 to rotate, and the dust roller 43 cleans the dust and other debris from the surface of the laminating roller 21. The dust roller 43 can be an electrostatic adsorption film or a low-tack tape, which plays a role in cleaning dust and preventing impurities from being mixed into the glue applied to the film.

[0033] After the glue is sprayed onto the surface of the coating roller 21 by the nozzle 34, the scraper 42 can be brought close to and in contact with the coating roller 21 by rotating the main shaft 41, thereby scraping the glue on the surface of the coating roller 21 more evenly, so that the coating roller 21 can cover the glue on the upper side of the film more comprehensively and evenly.

[0034] The scraper 42 and the dust roll 43 are both provided with a mounting bracket 46 at one end near the main shaft 41. The dust roll 43 is rotatably engaged with the mounting bracket 46 on its side, and the scraper 42 is fixedly engaged with the mounting bracket 46 on its side. The two sides of the main shaft 41 are respectively provided with a plug-in cylinder 44. The mounting bracket 46 is provided with a connecting rod 45 at the position corresponding to the plug-in cylinder 44. The connecting rod 45 is plugged into the plug-in cylinder 44 at the corresponding position.

[0035] The outer diameter of the connecting rod 45 matches the inner cavity of the insert tube 44. Through the provided insert tube 44 and connecting rod 45, the scraper 42 and the dust roll 43 can be detached and installed, thereby making it easy to disassemble and replace the scraper 42 and the dust roll 43.

[0036] like Figure 4 As shown, Figure 4 The diagram shown is a structural schematic of the connection between the plug-in sleeve and the connecting rod in the embodiment;

[0037] A magnet 441 is installed inside the plug tube 44, and a magnet 451 is installed at the end of the connecting rod 45 away from the mounting bracket 46. The magnet 441 and the magnet 451 can attract each other.

[0038] Based on the insertion and engagement of the plug-in sleeve 44 and the connecting rod 45, magnets 441 and 451 that can attract each other are provided to further increase the stability of the installation, and magnets 441 and 451 that can attract each other can be separated under external force.

[0039] like Figure 3 As shown, Figure 3 The diagram shown is a top view of the structure of the guide roller and the scraper in the embodiment.

[0040] Motor 1 22 and Motor 2 47 are provided on the outer side wall of the support 20. Motor 1 22 is connected to one end of the shaft of the coating roller 21, and Motor 2 47 is connected to one end of the main shaft 41.

[0041] Motor 1 22 and Motor 2 47 respectively drive the film coating roller 21 and the main shaft 41 to rotate.

[0042] Motor 1 22 starts when it is necessary to switch between scraper 42 and dust roll 43. Motor 2 47 drives coating roller 21 to rotate. After the nozzle 34 sprays glue onto the surface of coating roller 21, coating roller 21 rotates and first contacts scraper 42 before coating.

[0043] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A coating apparatus for producing plastic film, characterized in that, include: The conveyor (10), the bracket (20) and the glue application assembly (30) are provided. The bracket (20) is located on the upper end of the conveyor (10), and the glue application assembly (30) is located on the bracket (20). A film coating roller (21) is rotatably arranged inside the bracket (20). The glue application assembly (30) applies glue to the surface of the film coating roller (21). An auxiliary component is provided on one side of the coating roller (21). The auxiliary component includes a main shaft (41) rotatably disposed inside the bracket (20) and parallel to the coating roller (21). A scraper (42) is detachably disposed on one side of the main shaft (41), and a dust roll (43) is detachably and rotatably disposed on the other side of the main shaft (41). The main shaft (41) rotates so that the scraper (42) contacts the coating roller (21) or the dust roll (43) contacts the coating roller (21).

2. The coating apparatus for producing plastic film according to claim 1, characterized in that, The scraper (42) and the dust roll (43) are each provided with a mounting bracket (46) at one end near the main shaft (41). The dust roll (43) is rotatably engaged with the mounting bracket (46) on its side. The scraper (42) is fixedly engaged with the mounting bracket (46) on its side. The main shaft (41) is provided with plug-in cylinders (44) on both sides respectively. The mounting bracket (46) is provided with a connecting rod (45) at the position corresponding to the plug-in cylinder (44). The connecting rod (45) is plugged into the plug-in cylinder (44) at the corresponding position.

3. The coating apparatus for producing plastic film according to claim 2, characterized in that, A magnet (441) is provided inside the plug tube (44), and a magnet (451) is provided at the end of the connecting rod (45) away from the mounting bracket (46). The magnet (441) and the magnet (451) can attract each other.

4. The coating apparatus for producing plastic film according to claim 1, characterized in that, The glue coating assembly (30) includes a glue storage box (31) disposed on the top of the bracket (20). The glue outlet end of the glue storage box (31) is provided with a diversion pipe (32), and the other end of the diversion pipe (32) is provided with a diversion box (33). Multiple nozzles (34) are evenly spaced at the bottom of the diversion box (33), and the multiple nozzles (34) are located above the coating roller (21).

5. The coating apparatus for producing plastic film according to claim 1, characterized in that, Motor 1 (22) and Motor 2 (47) are provided on the outer side wall of the bracket (20). Motor 1 (22) is connected to one shaft end of the coating roller (21), and Motor 2 (47) is connected to one end of the main shaft (41).

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