Defoaming and feeding system of coating machine

Abstract

The utility model discloses a coating machine defoaming feeding system which comprises a feeding tank, a feeding pipeline, a transfer tank and a coating mechanism, the transfer tank is arranged between the feeding tank and the coating mechanism, a foam dispersing assembly is arranged on the feeding pipeline, the feeding pipeline is used for conveying materials in the feeding tank upwards to the foam dispersing assembly, a centrifugal disc is arranged in the transfer tank, and the centrifugal disc is used for conveying the materials in the feeding tank upwards to the foam dispersing assembly. The bubble dispersing assembly is used for conveying materials to the centrifugal disc, and the centrifugal disc is connected with a rotation driving mechanism. The defoaming feeding system of the coating machine has the advantages that the defoaming effect is good, materials are prevented from carrying bubbles to enter a coating mechanism, and the coating quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of food and pharmaceutical packaging machinery and equipment technology, specifically to a defoaming feeding system for a coating machine. Background Technology

[0002] Coating is a method of producing composite materials (films) by applying a slurry, such as a paste polymer, molten polymer, or polymer melt, onto paper, cloth, or plastic film. Current coating systems generally include a supply tank, a supply pump, and a coating nozzle. Typically, the well-stirred slurry is poured into the supply tank for storage. During the coating process, the supply pump delivers the slurry from the supply tank to the coating nozzle, where it is sprayed onto the substrate such as the film or cloth. However, when the slurry is poured into the supply tank, air bubbles are easily generated. During the pumping process, these air bubbles are not easily eliminated and may enter the delivery chamber, causing a small number of air bubbles in the coating applied to the substrate, thus affecting the coating quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a defoaming feeding system for a coating machine that has a good defoaming effect, helps to prevent materials from carrying air bubbles into the coating mechanism, and improves the coating quality.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A defoaming feeding system for a coating machine includes a feeding tank, a feeding pipe, a transfer tank, and a coating mechanism. The transfer tank is located between the feeding tank and the coating mechanism. A foam dispersing component is provided on the feeding pipe. The feeding pipe is used to convey the material in the feeding tank upward to the foam dispersing component. A centrifugal disc is provided in the transfer tank. The foam dispersing component is used to convey the material to the centrifugal disc. The centrifugal disc is connected to a rotary drive mechanism.

[0006] As a further improvement to the above technical solution:

[0007] The bubble dispersion component includes a filter screen, which is disposed on the feed pipe.

[0008] The bubble dispersion assembly also includes a feed head, and the filter screen is installed at the discharge end of the feed pipe through the feed head, and the filter screen is located inside the transfer tank and above the centrifugal disc.

[0009] The filter screen has a mesh size between 100 and 200.

[0010] The centrifugal disc has a discharge slot on its peripheral wall.

[0011] The width of the discharge slot is 0.5 to 1.5 mm.

[0012] The feed pipe is connected to the feed tank at its inlet end, and the feed pipe is equipped with a delivery pump and a heating mechanism.

[0013] The transfer tank is connected to a vacuum pumping mechanism.

[0014] The transfer tank includes a tank body and a tank cover, with the tank cover located on the top of the tank body and the rotary drive mechanism located on the tank cover.

[0015] The bottom of the transfer tank is connected to the coating mechanism via a feed pump. The coating mechanism is equipped with a cleaning port, which is used to connect with the feed tank to form a circulating cleaning loop.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] The working process of the defoaming feeding system for a coating machine of this utility model is as follows: The feeding pipe conveys the material in the feeding tank upward to the defoaming component, which then conveys the material to the centrifugal disc. During the process of the material passing through the defoaming component, large bubbles are dispersed into multiple small bubbles. After entering the centrifugal disc, the material is ejected from the periphery of the centrifugal disc under the centrifugal action of rotation. The ejected material flows along the inner wall of the transfer tank. During the flow, bubbles are continuously precipitated and broken, thus defoaming the slurry. The material is then conveyed to the coating mechanism, where it is coated onto the film. During the material conveying process, it first passes through the defoaming component for bubble dispersion and then undergoes centrifugal defoaming by rotation of the centrifugal disc, improving the defoaming effect and helping to prevent the material from carrying bubbles into the coating mechanism, thereby improving the coating quality of the coating mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the defoaming feeding system for the coating machine of this utility model.

[0019] Figure 2 This is a schematic diagram of the transfer tank in the defoaming feeding system of the coating machine of this utility model.

[0020] Figure 3 This is a schematic diagram of the tank of the defoaming feeding system for the coating machine of this utility model.

[0021] Figure 4 This is a schematic diagram of the can lid structure of the defoaming feeding system for the coating machine of this utility model.

[0022] The labels in the diagram represent:

[0023] 1. Feeding tank; 2. Transfer tank; 21. Tank body; 211. Locking pin; 22. Tank cover; 221. Locking groove; 3. Coating mechanism; 4. Bubble dispersing assembly; 41. Feed head; 42. Filter screen; 5. Centrifugal disc; 6. Rotary drive mechanism; 7. Feeding pipeline; 71. Conveying pump; 8. Heating mechanism; 9. Feeding pump. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Figures 1 to 4 This invention illustrates an embodiment of the defoaming feeding system for a coating machine. The defoaming feeding system of this embodiment includes a feeding tank 1, a feeding pipe 7, a transfer tank 2, and a coating mechanism 3. The transfer tank 2 is located between the feeding tank 1 and the coating mechanism 3. A foam dispersing component 4 is provided on the feeding pipe 7, which is used to convey the material in the feeding tank 1 upwards to the foam dispersing component 4. A centrifugal disc 5 is provided inside the transfer tank 2, and the foam dispersing component 4 is used to convey the material to the centrifugal disc 5. The centrifugal disc 5 is connected to a rotary drive mechanism 6.

[0029] The working process of the defoaming feeding system of this coating machine is as follows: The feeding pipe 7 conveys the material in the feeding tank 1 upward to the foam dispersing component 4, which then conveys the material to the centrifugal disc 5. During the process of the material passing through the foam dispersing component 4, large bubbles are dispersed into multiple small bubbles. After entering the centrifugal disc 5, the material is ejected from the periphery of the centrifugal disc 5 under the centrifugal action of rotation. The ejected material flows along the inner wall of the transfer tank 2. During the flow, bubbles are continuously released and broken, thus defoaming the slurry. The material is then conveyed to the coating mechanism 3, where it is coated onto the film. During the conveying process, the material first passes through the foam dispersing component 4 for foam dispersing, and then passes through the centrifugal disc 5 for centrifugal defoaming, which improves the defoaming effect and helps to prevent the material from carrying bubbles into the coating mechanism 3, thereby improving the coating quality of the coating mechanism 3.

[0030] Furthermore, the feeding pipe 7 conveys the material in the feeding tank 1 upward to the foaming component 4. This indicates that the feeding tank 1 can be set lower than the foaming component 4, which facilitates the feeding of the feeding tank 1. Moreover, the material can be dispersed by material compression during the conveying process in the feeding pipe 7.

[0031] Feed tank 1 can be used to store the mixed finished slurry, or it can be used directly as a mixing tank.

[0032] Furthermore, such as Figure 2 As shown, in this embodiment, the bubble-dispersing component 4 includes a filter screen 42, which is disposed on the feed pipe 7. After the material (slurry) passes through the filter screen 42, the large bubbles in it break down and are then drawn away under negative pressure in the transfer tank 2. In addition to breaking up bubbles, the filter screen 42 can also filter impurities or clumps in the material.

[0033] Furthermore, such as Figure 2 As shown, in this embodiment, the bubble-dispersing component 4 further includes a feed head 41, and a filter screen 42 is installed at the outlet end of the feeding pipe 7 through the feed head 41. The filter screen 42 is located inside the transfer tank 2 and above the centrifugal disc 5. The filter screen 42 is installed at the outlet end of the feeding pipe 7 through the feed head 41, so that the bubbles in the material break and disperse and fall into the centrifugal disc 5 in time, and then are centrifuged and defoamed by the rotation of the centrifugal disc 5.

[0034] Furthermore, in this embodiment, the filter screen 42 is between 100 and 200 mesh, which not only has a good bubble dispersion effect, but also meets the strength requirements and can withstand a certain pressure.

[0035] Furthermore, in this embodiment, the centrifugal disc 5 has discharge slits on its peripheral wall (intervals along the bottom of the side wall of the centrifugal disc). After the material enters the centrifugal disc 5, it is centrifugally ejected through the discharge slits under the centrifugal action of the rotation of the centrifugal disc 5. The discharge slits make the material spread thin, thereby allowing the air bubbles in the material to escape quickly and improving the defoaming efficiency.

[0036] Furthermore, in this embodiment, the width of the discharge slit is 0.5 to 1.5 mm, which has a good effect on spreading the material and facilitates the rapid overflow of air bubbles.

[0037] Furthermore, in this embodiment, the inlet end of the feeding pipe 7 is connected to the feeding tank 1, and the feeding pipe 7 is equipped with a conveying pump 71 and a heating mechanism 8. The conveying pump 71 provides power for conveying materials within the feeding pipe 7. Furthermore, the heating mechanism 8 is installed on the feeding pipe 7 via a clamp joint. The material can be heated by the heating mechanism 8 when necessary. Preferably, the heating mechanism 8 is equipped with a temperature sensor to control the heating temperature. Furthermore, the heating mechanism 8 is located at the end of the feeding pipe 7 near the transfer tank 2.

[0038] Furthermore, in this embodiment, the transfer tank 2 is connected to a vacuuming mechanism. The vacuuming mechanism can create a vacuum inside the transfer tank 2, ensuring that the inside of the transfer tank 2 is under negative pressure, which allows the gas in the bubbles in the material to be removed in a timely manner.

[0039] Furthermore, such as Figures 2 to 4 As shown, in this embodiment, the transfer tank 2 includes a tank body 21 and a tank cover 22. The tank cover 22 is placed on top of the tank body 21, and the rotation drive mechanism 6 is disposed on the tank cover 22. Normally, when cleaning the inside of the transfer tank 2, only the tank body 21 needs to be disassembled. Furthermore, the foam dispersing component 4 is disposed on the tank cover 22.

[0040] Furthermore, in this embodiment, the bottom of the transfer tank 2 is connected to the coating mechanism 3 via the feed pump 9. The coating mechanism 3 is provided with a cleaning port, which is used to connect with the feed tank 1 to form a circulating cleaning loop.

[0041] Furthermore, in this embodiment, the filter screen 42 is detachably connected to the feed head 41 for easy replacement.

[0042] Furthermore, in this embodiment, the bubble-dispersing component 4 is used to allow material to pass through and to disperse the bubbles in the material.

[0043] Furthermore, such as Figure 3 and Figure 4 As shown, in this embodiment, the can lid 22 is provided with a circumferentially open slot 221, and the can body 21 is provided with a locking pin 211, which is engaged in the slot 221. In this way, the can body 21 can be easily disassembled from the can lid 22.

[0044] The transfer tank 2, the feed pump 9, and the coating mechanism 3 are all fixed on the frame. The transfer tank 2, the feed pump 9, and the coating mechanism 3 are connected by pipes to realize material transportation. The feed tank 1 is placed at a low position, and the material is transported from the low position to the transfer tank 2 through the feed pipe 7. For easy disassembly and assembly, the volume of the transfer tank 2 is much smaller than that of the feed tank 1. Both ends of the heating mechanism 8 are fixed to the feed pipe 7 by clamps. One end of the feed pipe 7 that extends into the transfer tank 2 is connected to the foaming component 4.

[0045] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A coater defoaming feed system characterized by: The coating device comprises a feeding tank (1), a feeding pipe (7), a transfer tank (2) and a coating mechanism (3), the transfer tank (2) is arranged between the feeding tank (1) and the coating mechanism (3), the feeding pipe (7) is provided with a bubble distributing assembly (4), the feeding pipe (7) is used for conveying the material in the feeding tank (1) to the bubble distributing assembly (4), the transfer tank (2) is provided with a centrifugal disc (5), the bubble distributing assembly (4) is used for conveying the material to the centrifugal disc (5), and the centrifugal disc (5) is connected with a rotating driving mechanism (6).

2. The coater defoaming feed system of claim 1, wherein: The bubble distributing assembly (4) comprises a filter screen (42), and the filter screen (42) is arranged on the feeding pipe (7).

3. The coater defoaming feed system of claim 2, wherein: The bubble distributing assembly (4) further comprises a feeding head (41), the filter screen (42) is arranged on the discharging end of the feeding pipe (7) through the feeding head (41), and the filter screen (42) is located in the transfer tank (2) and above the centrifugal disc (5).

4. The coater defoaming feed system of claim 2, wherein: The filter screen (42) is between 100-200 meshes.

5. The coater defoaming feed system of claim 1, wherein: The centrifugal disc (5) is provided with a discharging slot on the peripheral wall.

6. The coater defoaming feed system of claim 5, wherein: The width of the discharging slot is 0.5-1.5 mm.

7. The coater defoaming feed system according to any one of claims 1 to 6, characterized in that: The feeding end of the feeding pipe (7) is connected with the feeding tank (1), the feeding pipe (7) is provided with a conveying pump (71) and a heating mechanism (8).

8. The coater defoaming feed system of any one of claims 1 to 6, wherein: The transfer tank (2) is connected with a vacuumizing mechanism.

9. The coater defoaming feed system of any one of claims 1 to 6, wherein: The transfer tank (2) comprises a tank body (21) and a tank cover (22), the tank cover (22) is arranged on the top of the tank body (21), and the rotating driving mechanism (6) is arranged on the tank cover (22).

10. The coater defoaming feed system of any one of claims 1 to 6, wherein: The bottom of the transfer tank (2) is communicated with the coating mechanism (3) through a feeding pump (9), the coating mechanism (3) is provided with a cleaning port, and the cleaning port is used for being connected with the feeding tank (1) to form a circulating cleaning loop.

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