Coating recycling, defoaming and feeding device of coating machine

Abstract

The utility model discloses a coating recycling, defoaming and feeding device of a coating machine. The coating recycling, defoaming and feeding device comprises a mixing kettle, a first defoaming device, a second defoaming device and a storage device, the material storage device comprises a recycled material barrel and a new material barrel, the recycled material barrel and the new material barrel are respectively communicated with the mixing kettle through a material supply pipeline, and a fourth pump is arranged on the material supply pipeline; the mixing kettle is communicated with the first defoaming device through a mixing pipeline, a stirring device is arranged in the mixing kettle, and a first pump is arranged on the mixing pipeline; the first defoaming device is respectively communicated with the vacuum generator and the second defoaming device through a vacuum pipeline and a defoaming pipeline, a second pump is arranged on the defoaming pipeline, and a dispersing assembly is arranged in the first defoaming device; the second defoaming device comprises a discharge pipe and a centrifugal deaerator; and a third pump is arranged on the discharge pipe. According to the utility model, vacuum defoaming and centrifugal defoaming are combined for defoaming, so that the defoaming device has the advantages of high defoaming efficiency and good defoaming effect, and can be suitable for coatings with various viscosities.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coating, particularly to a coating machine coating recovery defoaming feed device. BACKGROUND

[0002] When coating on the coating machine, if there are bubbles in the coating, after the coating is dried, many small holes will be left on the film, which affects the barrier property, adhesion and other properties of the coating product, and affects the coating quality and even causes scrap. Especially when the coating is recycled and coated, the bubbles in the coating are more obvious, which seriously affects the coating quality.

[0003] Therefore, it is urgent to design a coating machine coating recovery defoaming feed device which is reasonable in design and effectively reduces bubbles in the coating. UTILITY MODEL CONTENT

[0004] To solve the above problems, the technical scheme adopted by the utility model is as follows:

[0005] A coating machine coating recovery defoaming feed device, characterized by comprising a mixing kettle (10), a first defoaming device (20), a second defoaming device (30) and a storage device (60);

[0006] The storage device (60) comprises a recycled material barrel (61) for storing recycled coating and a new material barrel (62) for storing new coating, and the recycled material barrel (61) and the new material barrel (62) are respectively communicated with the mixing kettle (10) through a feed pipeline (63), and a fourth pump (64) is arranged on the feed pipeline (63);

[0007] The mixing kettle (10) is communicated with the first defoaming device (20) through a mixing pipeline (11), and a stirring device (13) is arranged in the mixing kettle (10), and a first pump (14) is arranged on the mixing pipeline (11);

[0008] The first defoaming device (20) is respectively communicated with a vacuum generator (40) and the second defoaming device (30) through a vacuum pipeline (41) and a defoaming pipeline (21), a second pump (27) is arranged on the defoaming pipeline (21), and a dispersion assembly is arranged in the first defoaming device (20);

[0009] The second defoaming device (30) comprises a centrifugal defoaming device and a discharge pipe (31) communicated with the coating machine, and a third pump (32) is arranged on the discharge pipe (31).

[0010] Preferably, the vacuum generator (40) is communicated with the second defoaming device (30) through the vacuum pipeline (41).

[0011] Preferably, the dispersion assembly comprises a motor (25) and a blade (26) connected to the motor, and the outlet of the mixing pipeline (11) is aligned with the blade (26).

[0012] Preferably, a defoaming circulation pipeline (23) is arranged between the defoaming pipeline (21) and the mixing pipeline (11), the connection point between the defoaming circulation pipeline (23) and the mixing pipeline (11) is located between the first pump (14) and the mixing kettle (10), and the connection point between the defoaming circulation pipeline (23) and the defoaming pipeline (21) is located between the second pump (27) and the first defoaming device (20).

[0013] The defoaming circulation pipeline (23) is provided with a circulation stop valve (24), the mixing pipeline (11) between the defoaming circulation pipeline (23) and the mixing kettle (10) is provided with a mixing stop valve (12), and the defoaming pipeline (21) between the defoaming circulation pipeline (23) and the second pump (27) is provided with a defoaming stop valve (22).

[0014] Preferably, the first pump (14), the second pump (27) and the third pump (32) are rotor pumps.

[0015] Preferably, the feed pipeline (63) is provided with a flow meter (65).

[0016] Preferably, the mixing kettle (10), the first defoaming device (20) and the second defoaming device (30) are provided with liquid level sensors for detecting the liquid level of the paint.

[0017] Compared with the prior art, the paint defoaming device has the advantages that the defoaming is performed in a combination mode of vacuum defoaming and centrifugal defoaming, the defoaming efficiency is high, the defoaming effect is good, and the device can be applied to paints of various viscosities. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Among them: mixing kettle 10, mixing pipeline 11, mixing stop valve 12, stirring device 13, first pump 14, first defoaming device 20, defoaming pipeline 21, defoaming stop valve 22, defoaming circulation pipeline 23, circulation stop valve 24, motor 25, blade 26, second pump 27, second defoaming device 30, discharge pipe 31, third pump 32, vacuum generator 40, vacuum pipeline 41, coating material tank 50, recovery pipeline 51, storage device 60, recovery material barrel 61, new material barrel 62, feed pipeline 63, fourth pump 64, flow meter 65. DETAILED DESCRIPTION

[0020] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show the preferred embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", "upper", "lower", "front", "rear", and the like as used herein are for purposes of description only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] The utility model will be further described below in conjunction with the drawings and specific embodiments:

[0024] As Figure 1 Indicated, a coating machine coating recovery defoaming feed device, including mixing kettle 10, first defoaming device 20, second defoaming device 30 and storage device 60;

[0025] The storage device 60 includes the recovery material bucket 61 of storage recovery coating and the new material bucket 62 of storage new coating, and the recovery material bucket 61 and the new material bucket 62 are communicated with the mixing kettle 10 through the feed pipe 63 respectively, and the fourth pump 64 is arranged on the feed pipe 63;

[0026] The mixing kettle 10 is communicated with the first defoaming device 20 through the mixing pipe 11, and the mixing kettle 10 is provided with the stirring device 13, and the first pump 14 is arranged on the mixing pipe 11;

[0027] The first defoaming device 20 is communicated with the vacuum generator 40 and the second defoaming device 30 through the vacuum pipe 41 and the defoaming pipe 21 respectively;The second pump 27 is arranged on the defoaming pipe 21, and the first defoaming device 20 is provided with the dispersion assembly;

[0028] The second defoaming device 30 includes centrifugal defoaming ware and the discharge pipe 31 communicated with coating machine, and the third pump 32 is arranged on the discharge pipe 31.

[0029] Vacuum defoaming has the advantage of fast defoaming speed, but the defoaming effect is not good for high viscosity paint; the centrifugal defoaming has good defoaming effect, but the defoaming speed is slow. In the embodiment, the defoaming is carried out by combining vacuum defoaming and centrifugal defoaming, which has the advantages of high defoaming efficiency and good defoaming effect, and can be applied to paints of various viscosities.

[0030] The stirring device is a mechanism for uniform mixing of different liquids and components in the industry, which will not be repeated here. The dispersion assembly is used to disperse the paint, increase the contact area of the paint with the vacuum environment, and accelerate the defoaming efficiency of the bubbles in the paint.

[0031] Further, in order to improve the defoaming efficiency of the centrifugal defoaming, the vacuum generator 40 is communicated with the second defoaming device 30 through the vacuum pipeline 41.

[0032] Further, in order to maintain good dispersion effect of the paint, the dispersion assembly includes a motor 25 and a blade 26 connected with the motor, and the outlet of the mixing pipeline 11 is aligned with the blade 26.

[0033] In the embodiment, the motor 25 drives the blade 26 to rotate at high speed, which disperses the paint into small particles or even atomizes, increases the contact area of the paint with the vacuum environment, and improves the defoaming speed and effect. The blade of the embodiment adopts the blade structure of a centrifugal fan, and can also be set as the blade structure of an axial flow fan according to the characteristics of the paint. The blade structure belongs to the prior art and will not be repeated here.

[0034] Further, a defoaming circulation pipeline 23 is arranged between the defoaming pipeline 21 and the mixing pipeline 11, the connection point between the defoaming circulation pipeline 23 and the mixing pipeline 11 is located between the first pump 14 and the mixing kettle 10, and the connection point between the defoaming circulation pipeline 23 and the defoaming pipeline 21 is located between the second pump 27 and the first defoaming device 20.

[0035] The defoaming circulation pipeline 23 is provided with a circulation stop valve 24, the mixing pipeline 11 between the defoaming circulation pipeline 23 and the mixing kettle 10 is provided with a mixing stop valve 12, and the defoaming pipeline 21 between the defoaming circulation pipeline 23 and the second pump 27 is provided with a defoaming stop valve 22.

[0036] In the embodiment, the first pump 14 circulates the paint in the first defoaming device 20, disperses it into small particles or even atomizes by using the blade 26, carries out circulation defoaming, and improves the defoaming effect.

[0037] Further, in order to ensure good pumping stability under any back pressure working condition, the first pump 14, the second pump 27 and the third pump 32 are rotor pumps.

[0038] Further, in order to improve the accuracy of the feeding, facilitate the calculation and adjustment of the proportion of new material and recycled material, a flow meter 65 is arranged on the feeding pipeline 63.

[0039] Further, in order to keep the liquid level in the mixing kettle, the first defoaming device and the second defoaming device at a proper height, liquid level sensors for detecting the liquid level of the paint are arranged on the mixing kettle 10, the first defoaming device 20 and the second defoaming device 30.

[0040] The recycling and defoaming feeding implementation mode of the present application is as follows:

[0041] 1. The new paint is stored in the new material barrel 62.

[0042] 2. The recycled paint is stored in the recycled material barrel 61, or the recycled paint can be automatically recycled through the recycling pipeline 51 and the recycled material tank of the coating machine.

[0043] 3. When the liquid level of the mixing kettle 10 is lower than the lowest liquid level, the fourth pump 64 pumps the new material and the recycled material into the mixing kettle 10 according to the proportion, and the fourth pump 64 stops pumping when the liquid level reaches the highest liquid level, and the stirring device 13 stirs the new material and the recycled material uniformly.

[0044] 4. When the liquid level of the first defoaming device 20 is lower than the lowest liquid level, the first pump 14 pumps the paint in the mixing kettle 10 into the first defoaming device 20, and at the same time, the vacuum generator keeps a certain vacuum degree in the first defoaming device 20, and the motor 25 drives the blade 26 to rotate at high speed, so that the paint is scattered into small particles or even atomized, thereby improving the efficiency of bubble discharge in the paint.

[0045] 4.1. When the liquid level reaches the highest liquid level, the mixing stop valve 12 and the defoaming stop valve 22 are closed, the circulating stop valve 24 is opened, and the first pump 14 circulates the paint in the first defoaming device 20, and the blade 26 is used to scatter the paint into small particles or even atomized, and the paint is circulated and defoamed.

[0046] 5. When the liquid level of the paint in the second defoaming device 30 is lower than the lowest liquid level, the circulating stop valve 24 is closed, the defoaming stop valve 22 is opened, the second pump 27 pumps the paint after vacuum defoaming into the second defoaming device 30 for centrifugal defoaming, and the defoamed paint is pumped into the material tank of the coating machine by the third pump 32 through the discharge pipe 31 for coating operation.

[0047] For those skilled in the art, other various corresponding changes and deformations can be made according to the above described technical solutions and concepts, and all these changes and deformations should belong to the protection scope of the present application patent claim.

Claims

1. A coater coating recovery deaeration feed device characterized by: The device comprises a mixing kettle (10), a first defoaming device (20), a second defoaming device (30) and a storage device (60). The storage device (60) comprises a recycled material barrel (61) for storing recycled paint and a new material barrel (62) for storing new paint, and the recycled material barrel (61) and the new material barrel (62) are respectively communicated with the mixing kettle (10) through a feeding pipeline (63), and a fourth pump (64) is arranged on the feeding pipeline (63). The mixing kettle (10) is communicated with the first defoaming device (20) through a mixing pipeline (11), and a stirring device (13) is arranged in the mixing kettle (10), and a first pump (14) is arranged on the mixing pipeline (11). The first defoaming device (20) is communicated with a vacuum generator (40) and the second defoaming device (30) through a vacuum pipeline (41) and a defoaming pipeline (21) respectively, a second pump (27) is arranged on the defoaming pipeline (21), and a dispersion assembly is arranged in the first defoaming device (20). The second defoaming device (30) comprises a centrifugal defoaming device and a discharge pipe (31) communicated with a coating machine, and a third pump (32) is arranged on the discharge pipe (31).

2. A coating material recovery and deaeration feed apparatus for a coating machine as defined in claim 1, characterized in that: The vacuum generator (40) is communicated with the second defoaming device (30) through a vacuum pipeline (41).

3. A coating material recovery and deaeration feed apparatus for a coating machine as defined in claim 1, characterized in that: The dispersion assembly comprises a motor (25) and a blade (26) connected with the motor, and the outlet of the mixing pipeline (11) is aligned with the blade (26).

4. A coating material recovery and deaeration feed apparatus for a coating machine as defined in claim 1, characterized in that: A defoaming circulating pipeline (23) is arranged between the defoaming pipeline (21) and the mixing pipeline (11), and the connecting point between the defoaming circulating pipeline (23) and the mixing pipeline (11) is located between the first pump (14) and the mixing kettle (10), and the connecting point between the defoaming circulating pipeline (23) and the defoaming pipeline (21) is located between the second pump (27) and the first defoaming device (20). A circulating stop valve (24) is arranged on the defoaming circulating pipeline (23), a mixing stop valve (12) is arranged on the mixing pipeline (11) between the defoaming circulating pipeline (23) and the mixing kettle (10), and a defoaming stop valve (22) is arranged on the defoaming pipeline (21) between the defoaming circulating pipeline (23) and the second pump (27).

5. A coating material recovery and deaeration feed apparatus for a coating machine as defined in claim 1, characterized in that: The first pump (14), the second pump (27) and the third pump (32) are rotor pumps.

6. A coating material recovery and deaeration feed apparatus for a coating machine as defined in claim 1, characterized in that: A flow meter (65) is arranged on the feeding pipeline (63).

7. A coating material recovery and deaeration feed apparatus for a coating machine as defined in claim 1, wherein: A liquid level sensor for detecting the liquid level of the paint is arranged on the mixing kettle (10), the first defoaming device (20) and the second defoaming device (30).

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