Die head net changing device for laminating machine

Abstract

The utility model relates to the technical field of laminating machines, in particular to a die head screen changing device for a laminating machine, which mainly comprises a filter box, a cleaning box, a drying and preheating box, an annular filter component and a gear box. An overturning system formed by a servo motor and a rotary driving gear in a gear box is used for driving an annular filtering component to perform fixed-angle rotary displacement, and when a filtering plate of the annular filtering component enters a cleaning box from a filtering box, a high-pressure spraying system formed by a high-pressure water inlet pipe and a cleaning spraying plate is used for performing quick anti-blocking cleaning on the filtering plate; when a filter plate of the annular filter component enters the drying and preheating box from the cleaning box, the filter plate is dried and preheated by utilizing a hot air inlet pipe and a preheating system of the drying and preheating box; the preheated filter plate enters the filter box to realize the existing filter function, and the filter plate can be replaced without shutdown in this way, so that manual operation is not needed; and the filter plate is preheated before entering the device, so that molten plastic cannot be solidified.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, and in particular to a die head screen changing device for a coating machine. Background Technology

[0002] The die-changing device plays a crucial role in the laminating machine. The laminating machine is a modern packaging equipment primarily used to coat materials such as paper, plastic, and metal with a thin film to achieve purposes such as moisture resistance, waterproofing, corrosion resistance, and oxidation resistance. The working principle of the laminating machine is to apply the laminating liquid to the substrate in a specific manner, and then cure the coated film through processes such as drying and cooling, thereby forming a product with specific functions. Laminated paper is made by adhering molten plastic particles to paper; therefore, in the production of laminated paper, a laminating machine is generally needed to extrude the molten plastic. However, the molten plastic may contain impurities, requiring the addition of a filter screen to the extruder to remove these impurities. The filter screens in the plastic extrusion unit of traditional laminating machines need frequent replacement; otherwise, blockages will occur, affecting the extrusion of the molten plastic. Replacing the filter screen requires machine shutdown, which halts laminated paper production and affects production efficiency.

[0003] Existing die-changing screen devices for coating machines have shortcomings. First, they cannot change screens without shutting down the machine, and the screen-changing work requires manual operation, increasing labor intensity and labor costs. Second, the filter screen temperature is low after screen changing, which can easily cause the molten plastic to solidify upon entering the device, affecting the passage of the molten plastic through the filter screen. Therefore, optimization and improvement are needed. Utility Model Content

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technology and provide a die head screen changing device for a coating machine.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A screen changing device for a coating machine includes a filter box, a cleaning box, a drying and preheating box, an annular filter component, and a gear box. There are two sets of each of the filter box, cleaning box, and drying and preheating box, which are assembled together to form an annular cover set outside the annular filter component. The cleaning box is located between the filter box and the drying and preheating box, and the gear box is located inside the cleaning box.

[0007] The annular filter component consists of an inner toothed ring, an outer ring, partitions, and a filter plate. Six partitions are installed between the inner toothed ring and the outer ring. The inner toothed ring, the outer ring, and the partitions together form a filter plate installation area that facilitates the installation of the filter plate.

[0008] The filter box has an extrusion through hole on the front side plate and a feed through hole on the rear side plate;

[0009] The cleaning box is equipped with a cleaning spray plate. One side of the cleaning spray plate is connected to a high-pressure water inlet pipe that passes through the cleaning box, and the other side of the cleaning spray plate is evenly distributed with cleaning spray holes.

[0010] The drying preheating box is equipped with a drying preheating plate inside. One side of the drying preheating plate is connected to a hot air inlet pipe that passes through the drying preheating box, and the other side of the drying preheating plate is evenly distributed with air outlet holes.

[0011] A servo motor is fixed to the outside of the gearbox, and a rotary drive gear that meshes with the internal gear ring is installed at the output end of the servo motor.

[0012] Furthermore, in the above-mentioned die head changing device for the coating machine, the filter box, the cleaning box, and the drying preheating box each have an arc-shaped channel inside to facilitate the cyclic displacement of the annular filter component, and the arc-shaped channel of each filter box, the cleaning box, and the drying preheating box has a sealing ring near both ends to improve the sealing performance.

[0013] Furthermore, in the above-mentioned die head changing device for the coating machine, the inner toothed ring, outer ring, and partition plate of the annular filter component are an integral structure, and the two ends of the filter plate mounting area are provided with slots to facilitate the insertion of the filter plate.

[0014] Furthermore, in the above-mentioned die head changing device for the coating machine, the filter plate is made of a tough stainless steel plate, and both ends of the filter plate are forcibly inserted into the corresponding slots through deformation. After being inserted, the filter plate can return to its original shape.

[0015] Furthermore, in the above-mentioned die head changing device for the coating machine, the cleaning spray plate has a first cavity inside, the high-pressure water inlet pipe and the cleaning spray hole are respectively connected to both sides of the first cavity, and the high-pressure water inlet pipe is connected to a water supply source.

[0016] Furthermore, in the above-mentioned die-changing device for the coating machine, the cleaning box is equipped with a drainage pipe at the end away from the high-pressure water inlet pipe.

[0017] Furthermore, in the above-mentioned die head changing device for the coating machine, the interior of the drying preheating plate is provided with a second cavity, the hot air inlet pipe and the air outlet are respectively connected to the two sides of the second cavity, and a hot air fan is connected to the outside of the hot air inlet pipe.

[0018] Furthermore, in the above-mentioned die head changing device for the coating machine, the drying preheating box is equipped with an exhaust pipe at the end away from the hot air inlet pipe.

[0019] The beneficial effects of the utility model are:

[0020] The die-changing device provided by this utility model is shared by the die heads of two coating machines. It mainly consists of a filter box, a cleaning box, a drying and preheating box, an annular filter component, and a gear box. The components work together, and the rotating system composed of a servo motor and a rotary drive gear in the gear box drives the annular filter component to rotate at a certain angle. When the filter plate of the annular filter component enters the cleaning box from the filter box, a high-pressure spray system composed of a high-pressure water inlet pipe and a cleaning spray plate is used to quickly clean the filter plate to prevent clogging. When the filter plate of the annular filter component enters the drying and preheating box from the cleaning box, a preheating system composed of a hot air inlet pipe and a drying and preheating plate is used to dry and preheat the filter plate. The preheated filter plate enters the filter box to realize its existing filtration function. In this way, the filter plate can be changed without stopping the machine and without manual operation. The filter plate is preheated before entering the device to prevent the molten plastic from solidifying.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view schematic diagram of the entire utility model;

[0024] Figure 2 This is a rear view of the present invention with the annular filter component omitted.

[0025] Figure 3 This is a schematic diagram of the structure of the annular filter component in this utility model;

[0026] Figure 4 This is a schematic diagram of the annular filter component in this utility model after omitting the filter plate;

[0027] Figure 5 This is a schematic diagram of the cleaning box in this utility model;

[0028] Figure 6 This is a schematic diagram of the drying and preheating box in this utility model;

[0029] In the attached diagram, the components represented by each number are as follows:

[0030] 1-Filter box, 101-Extrusion through hole, 102-Feed through hole, 2-Washing box, 201-High pressure water inlet pipe, 202-Washing spray plate, 203-Washing spray hole, 3-Drying preheating box, 301-Hot air inlet pipe, 302-Drying preheating plate, 303-Air outlet hole, 4-Annular filter component, 401-Inner gear ring, 402-Outer ring, 403-Partition plate, 404-Filter plate, 5-Gear box, 501-Servo motor, 502-Rotary drive gear. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-6 As shown, this embodiment provides a die head screen changing device for a coating machine, including a filter box 1, a cleaning box 2, a drying and preheating box 3, an annular filter component 4, and a gear box 5. There are two sets of each of the filter box 1, cleaning box 2, and drying and preheating box 3, which are assembled together to form an annular cover disposed on the outside of the annular filter component 4. The cleaning box 2 is located between the filter box 1 and the drying and preheating box 3, and the gear box 5 is located inside the cleaning box 2.

[0033] In this embodiment, each of the filter box 1, the cleaning box 2, and the drying and preheating box 3 has an arc-shaped channel inside to facilitate the cyclic displacement of the annular filter component 4. The arc-shaped channels of each of the filter box 1, the cleaning box 2, and the drying and preheating box 3 are provided with sealing rings near both ends to improve sealing performance.

[0034] In this embodiment, the annular filter component 4 is composed of an inner toothed ring 401, an outer ring 402, a partition 403, and a filter plate 404. Six partitions 403 are installed between the inner toothed ring 404 and the outer ring 402. The inner toothed ring 401, the outer ring 402, and the partitions 403 together form six filter plate mounting areas that facilitate the installation of the filter plate 404.

[0035] In this embodiment, the front side plate of the filter box 1 has an extrusion through hole 101, and the rear side plate has a feed through hole 102.

[0036] In this embodiment, a cleaning spray plate 202 is installed inside the cleaning box 2. A high-pressure water inlet pipe 201 passing through the cleaning box 2 is connected to one side of the cleaning spray plate 202, and cleaning spray holes 203 are evenly distributed on the other side of the cleaning spray plate 202. The cleaning spray plate 202 has a first cavity inside, and the high-pressure water inlet pipe 201 and the cleaning spray holes 203 are respectively connected to the two sides of the first cavity. A water supply source is connected to the high-pressure water inlet pipe 201.

[0037] In this embodiment, a drying preheating plate 302 is installed inside the drying preheating box 3. A hot air inlet pipe 301 passing through the drying preheating box 3 is connected to one side of the drying preheating plate 302, and air outlet holes 303 are evenly distributed on the other side of the drying preheating plate 302. A second cavity is provided inside the drying preheating plate 302. The hot air inlet pipe 301 and the air outlet holes 303 are respectively connected to the two sides of the second cavity. A hot air blower is connected to the outside of the hot air inlet pipe 301.

[0038] In this embodiment, a servo motor 501 is fixed on the outside of the gear box 5, and a rotary drive gear 502 that meshes with the internal gear ring 401 is installed at the output end of the servo motor 501.

[0039] In this embodiment, the inner toothed ring 401, outer ring 402, and partition 403 of the annular filter component 4 are an integral structure. The two ends of the filter plate mounting area are provided with slots to facilitate the insertion of the filter plate 404. The filter plate 404 is made of a tough stainless steel plate. The two ends of the filter plate 404 are forcibly inserted into the corresponding slots through deformation. After being inserted, the filter plate 404 can return to its original shape.

[0040] In this embodiment, the cleaning box 2 is equipped with a drain pipe at the end away from the high-pressure water inlet pipe 201.

[0041] In this embodiment, the drying preheating box 3 is equipped with an exhaust pipe at the end away from the hot air inlet pipe 301.

[0042] A specific application of this embodiment is as follows: The die head changing device is shared by the die heads of two coating machines. It mainly consists of a filter box 1, a cleaning box 2, a drying and preheating box 3, an annular filter component 4, and a gear box 5. The components work together, and the annular filter component 4 is driven to rotate at a certain angle by a flipping system consisting of a servo motor 501 and a rotary drive gear 502 in the gear box 5. When the filter plate 404 of the annular filter component 4 enters the cleaning box 2 from the filter box 1, it is sprayed by a high-pressure water inlet pipe 201 and a cleaning spray plate 202. A high-pressure spray system is used to quickly clean the filter plate 404 to prevent clogging. When the filter plate 404 of the annular filter component 4 enters the drying and preheating box 3 from the cleaning box 2, the filter plate 404 is dried and preheated by the preheating system of the hot air inlet duct 301 and the drying and preheating plate 302. After preheating, the filter plate 404 enters the filter box 1 to realize its existing filtration function. In this way, the filter plate can be replaced without stopping the machine and without manual operation. The filter plate 404 is preheated before entering the device, which will not cause the molten plastic to solidify.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A die-changing device for a coating machine, characterized in that: It includes a filter box, a cleaning box, a drying and preheating box, an annular filter component, and a gear box. There are two sets of each of the filter box, cleaning box, and drying and preheating box, which are assembled together to form an annular cover on the outside of the annular filter component. The cleaning box is located between the filter box and the drying and preheating box, and the gear box is located inside the cleaning box. The annular filter component consists of an inner toothed ring, an outer ring, partitions, and a filter plate. Six partitions are installed between the inner toothed ring and the outer ring. The inner toothed ring, the outer ring, and the partitions together form a filter plate installation area that facilitates the installation of the filter plate. The filter box has an extrusion through hole on the front side plate and a feed through hole on the rear side plate; The cleaning box is equipped with a cleaning spray plate. One side of the cleaning spray plate is connected to a high-pressure water inlet pipe that passes through the cleaning box, and the other side of the cleaning spray plate is evenly distributed with cleaning spray holes. The drying preheating box is equipped with a drying preheating plate inside. One side of the drying preheating plate is connected to a hot air inlet pipe that passes through the drying preheating box, and the other side of the drying preheating plate is evenly distributed with air outlet holes. A servo motor is fixed to the outside of the gearbox, and a rotary drive gear that meshes with the internal gear ring is installed at the output end of the servo motor.

2. The die-changing device for a coating machine according to claim 1, characterized in that: The filter box, cleaning box, and drying preheating box each have an arc-shaped channel inside to facilitate the cyclic displacement of the annular filter component. The arc-shaped channel of each filter box, cleaning box, and drying preheating box has a sealing ring near both ends to improve the sealing performance.

3. The die-changing device for a coating machine according to claim 2, characterized in that: The annular filter component has an integrated structure of inner toothed ring, outer ring, and partition plate, and the filter plate mounting area has slots at both ends to facilitate the insertion of the filter plate.

4. The die-changing device for a coating machine according to claim 3, characterized in that: The filter plate is made of a tough stainless steel plate. Both ends of the filter plate are forced into corresponding slots by deformation, and the filter plate can return to its original shape after being inserted.

5. The die-changing device for a coating machine according to claim 4, characterized in that: The cleaning spray plate has a first cavity inside, and the high-pressure water inlet pipe and the cleaning spray hole are respectively connected to the two sides of the first cavity. The high-pressure water inlet pipe is connected to a water supply source.

6. The die-changing device for a coating machine according to claim 5, characterized in that: The cleaning box is equipped with a drain pipe at the end away from the high-pressure water inlet pipe.

7. The die-changing device for a coating machine according to claim 6, characterized in that: The drying preheating plate has a second cavity inside, and the hot air inlet pipe and the air outlet are respectively connected to the two sides of the second cavity. A hot air fan is connected to the outside of the hot air inlet pipe.

8. The die head changing device for a coating machine according to claim 7, characterized in that: The drying and preheating box is equipped with an exhaust pipe at the end away from the hot air inlet pipe.

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