Coating machine capable of recycling slurry

Abstract

The utility model discloses a coating machine capable of recycling slurry, which relates to the technical field of coating machines, and comprises a rack, a material tank, a driving roller, a spraying box and a slurry recycling assembly, and the spraying box and the slurry recycling assembly are positioned below the driving roller; the slurry recycling assembly comprises a first recycling box, a second recycling box, a first baffle and a second baffle, the first recycling box and the spraying box are arranged in a spaced mode in the second direction, the first recycling box is provided with a first liquid return groove with a groove opening facing the spraying box, and the second recycling box is located below the spraying box and provided with a second liquid return groove with an upward groove opening; the first liquid return groove and the second liquid return groove are connected with the material tank, and the first baffle and the second baffle are arranged between the spraying box and the first recycling box, located at the two ends of the film in the first direction and arranged corresponding to the second liquid return groove. In this way, when sprayed, atomized and drifted, slurry makes contact with the inner side wall of the first liquid return groove, the first baffle and the second baffle, is condensed into liquid and flows into the material tank to be recycled, the utilization rate is increased, cost is reduced, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a coating machine with recoverable slurry. Background Art

[0002] With the development of the thin film industry (including lithium battery separators, optical films, ultrafiltration membranes, etc.), the base film factory with coating membranes has truly entered the fast lane of development. The coating slurry formula has become the core of coating technology. The slurry cost accounts for a large proportion of the coating output. When the existing coating machine is used for slurry spraying, the slurry will splash and scatter, causing a lot of resource waste and increasing production costs. In addition, the sprayed mist slurry will cause environmental pollution in the workshop, which is not only difficult to clean, but also affects the health of the staff. Utility Model Content

[0003] The main purpose of the utility model is to provide a slurry recoverable coating machine which can reduce slurry waste and improve slurry utilization rate.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a slurry recyclable coating machine, and the slurry recyclable coating machine comprises:

[0005] frame;

[0006] A material tank, used for containing slurry;

[0007] A transmission roller, arranged on the frame, for driving the film to move along its winding direction;

[0008] A spray box is provided on the frame and below the driving roller and extends along the first direction. A spray head connected to the material tank pipeline is provided in the spray box, and a spray port is provided on a side wall of the spray box close to the driving roller in the second direction corresponding to the spray head, so that the spray head sprays the slurry onto the film; and,

[0009] The slurry recovery assembly is arranged on the frame and is located below the driving roller, comprising a first recovery box, a second recovery box, a first baffle and a second baffle, the first recovery box extending along the first direction and spaced apart from the spray box along the second direction for allowing the film to pass through, the first recovery box having a first liquid return trough with a notch facing the spray box, the second recovery box being located below the spray box and extending along the first direction, and having a second liquid return trough with a notch upwardly disposed, the first liquid return trough and the second liquid return trough are respectively connected to the material tank pipeline, the first baffle and the second baffle are arranged between the spray box and the first recovery box, and are spaced apart along the first direction, and are used to be located at both ends of the film in the first direction, the lower end of the first baffle and the lower end of the second baffle are respectively arranged corresponding to the second liquid return trough, the inner wall of the first liquid return trough, the first baffle and the second baffle are all used to contact and condense with the atomized slurry, and guide the condensed slurry to flow into the material tank;

[0010] The up-down direction, the first direction and the second direction are perpendicular to each other.

[0011] Optionally, the first baffle is extended in the up-down direction, and the first baffle is fixedly mounted on a side wall of the spray box facing the first recovery box.

[0012] Optionally, the second baffle is bent so that its upper end is connected to the first recovery box, and its lower end is located below the second recovery box and extends into the second liquid return tank.

[0013] Optionally, a first liquid return port is formed on the lower side wall of the first liquid return tank, and the first liquid return port is connected to the material tank through a first pipe.

[0014] Optionally, a second liquid return port is formed on the bottom wall of the second liquid return tank, and the second liquid return port is connected to the material tank via a second pipe.

[0015] Optionally, a recovery plate is protruded from the bottom wall of the spray box toward the first recovery box, the recovery plate is extended along the first direction, and is provided with a third liquid return groove with a notch upwardly disposed, and the third liquid return groove is connected to the second liquid return groove;

[0016] The lower end of the first baffle corresponds to the third liquid return groove.

[0017] Optionally, the bottom wall of the third liquid return groove is provided with two third liquid return ports, the two third liquid return ports are spaced apart along the first direction, and are respectively connected to the second liquid return groove through third pipes.

[0018] Optionally, two fourth liquid return ports are provided on the bottom wall of the spray box, and the two fourth liquid return ports are spaced apart along the first direction. One of the two fourth liquid return ports is connected to the second liquid return tank and the material tank through a three-way pipe, and the other of the two fourth liquid return ports is connected to the second liquid return tank through a fourth pipe.

[0019] Optionally, the slurry recovery assembly also includes an exhaust fan, which includes an exhaust hood, an electric fan and a liquid return pipe. The exhaust hood is arranged above the drive roller, and the electric fan is arranged in the exhaust hood. One end of the liquid return pipe is connected to one end of the exhaust hood away from the drive roller, and the other end is connected to the material tank.

[0020] Optionally, the material tank is connected to a liquid inlet pipe via a water pump, and one end of the liquid inlet pipe away from the material tank is connected to the nozzle to transport the slurry in the material tank to the nozzle to spray the film.

[0021] In the technical solution of the utility model, by setting the slurry recovery component, that is, setting the first recovery box, the second recovery box, the first baffle and the second baffle, during the slurry spraying process, when the slurry that is not smoothly sprayed onto the film is atomized and dispersed, it can contact the inner side wall of the first liquid return tank formed in the first recovery box, the first baffle and the second baffle, and condense into liquid slurry, and the first liquid return tank and the second liquid return tank formed in the second recovery box are both connected to the material tank pipeline, the lower end of the first baffle and the lower end of the second baffle correspond to the second liquid return tank, the condensed on the inner side wall of the first liquid return tank can flow into the material tank through the pipeline, and the liquid slurry condensed on the first baffle and the second baffle can flow into the second liquid return tank through the pipeline first, and then flow into the material tank, so as to realize the unified recovery of the atomized slurry, thereby greatly improving the utilization rate of the slurry, reducing the production cost, and reducing the environmental pollution in the workshop, which is beneficial to the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A three-dimensional schematic diagram of an embodiment of a slurry recyclable coating machine provided by the utility model;

[0024] Figure 2 for Figure 1A top view of a portion of the structure of a medium slurry recyclable coating machine;

[0025] Figure 3 for Figure 1 A cross-sectional view of a portion of the structure of a medium slurry recoverable coating machine.

[0026] Description of Figure Numbers:

[0027]

[0028]

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] With the development of the thin film industry (including lithium battery separators, optical films, ultrafiltration membranes, etc.), the base film factory with coating membranes has truly entered the fast lane of development. The coating slurry formula has become the core of coating technology. The slurry cost accounts for a large proportion of the coating output. When the existing coating machine is used for slurry spraying, the slurry will splash and scatter, causing a lot of resource waste and increasing production costs. In addition, the sprayed mist slurry will cause environmental pollution in the workshop, which is not only difficult to clean, but also affects the health of the staff.

[0034] In view of this, the utility model provides a slurry recyclable coating machine 100, Figures 1 to 3 This is an embodiment of a slurry recoverable coating machine 100 provided by the utility model.

[0035] See also Figures 1 to 3 The slurry recoverable coating machine 100 includes a frame 1, a material tank 2, a driving roller 3, a spray box 4, and a slurry recovery component 5, wherein the material tank 2 is used to contain slurry; the driving roller 3 is arranged on the frame 1, and is used to drive the film 200 to move along its winding direction; the spray box is arranged on the frame 1, and is located below the driving roller 3, and is extended along the first direction, and a nozzle 41 connected to the pipeline of the material tank 2 is provided in the spray box 4, and a side wall thereof close to the driving roller 3 in the second direction is provided with a spray port corresponding to the nozzle 41, so that the nozzle 41 sprays the slurry onto the film 200; the slurry recovery component 5 is arranged on the frame 1, and is located below the driving roller 3, and includes a first recovery box 51, a second recovery box 52, a first baffle 53 and a second baffle 54, the first recovery box 51 is extended along the first direction, and is spaced apart from the spray box 4 along the second direction, so as to provide The film 200 passes through, the first recovery box 51 has a first liquid return trough with a notch set toward the spray box, the second recovery box 52 is located below the spray box 4, and is extended along the first direction, and has a second liquid return trough with a notch set upward, the first liquid return trough and the second liquid return trough are respectively connected to the pipeline of the material tank 2, the first baffle 53 and the second baffle 54 are arranged between the spray box 4 and the first recovery box 51, and are spaced apart along the first direction, and are used to be located at both ends of the film 200 in the first direction, the lower end of the first baffle 53 and the lower end of the second baffle 54 are respectively arranged corresponding to the second liquid return trough, the inner wall of the first liquid return trough, the first baffle 53 and the second baffle 54 are all used to contact and condense with the atomized slurry, and guide the condensed slurry to flow into the material tank 2; wherein, the up and down directions, the first direction and the second direction are perpendicular to each other.

[0036] In the technical solution of the utility model, by setting the slurry recovery component 5, that is, setting the first recovery box 51, the second recovery box 52, the first baffle 53 and the second baffle 54, during the slurry spraying process, the slurry that is not smoothly sprayed on the film 200 is atomized and dispersed, and can contact with the inner side wall of the first return liquid tank formed in the first recovery box 51, the first baffle 53 and the second baffle 54, and condense into liquid slurry. The first return liquid tank and the second return liquid tank formed in the second recovery box 52 are both connected to the material tank. 2 pipeline connection, the lower end of the first baffle 53 and the lower end of the second baffle 54 are both corresponding to the second liquid return groove, the condensed on the inner wall of the first liquid return groove can flow into the material tank 2 through the pipeline, and the liquid slurry condensed on the first baffle 53 and the second baffle 54 can first flow into the second liquid return groove through the pipeline, and then flow into the material tank 2, so as to realize the unified recovery of the atomized slurry, thereby greatly improving the utilization rate of the slurry, reducing the production cost, and reducing the environmental pollution in the workshop, which is beneficial to the health of the staff.

[0037] For further information, see Figure 1 The first baffle 53 is extended in the up-down direction, and the first baffle 53 is fixedly mounted on a side wall of the spray box 4 facing the first recovery box 51. In this way, the atomized slurry contacts the side wall of the first baffle 53 facing away from the spray box 4 and condenses to form liquid slurry, which then falls into the material tank 2 for recovery under the guidance of the first baffle 53.

[0038] For details, please refer to Figure 1 The second baffle plate 54 is bent so that its upper end is connected to the first recovery box 51, and its lower end is located below the second recovery box 52 and extends into the second liquid return tank. In this way, the second baffle plate 54 is arranged close to the spray port relative to the inner side wall of the first liquid return tank far away from the spray port, so that part of the atomized slurry that cannot float to the inner side wall of the first liquid return tank can float to the second baffle plate 54 for condensation, thereby improving the recovery rate of the slurry.

[0039] For details, please refer to Figure 1 A first liquid return port is provided on the lower side wall of the first liquid return tank, and the first liquid return port is connected to the material tank 2 through a first pipe 55.

[0040] Specifically, a second liquid return port is provided on the bottom wall of the second liquid return tank, and the second liquid return port is connected to the material tank 2 through a second pipe.

[0041] For details, please refer to Figures 1 to 3The bottom wall of the spray box is provided with a recovery plate 56 protruding toward the direction close to the first recovery box 51. The recovery plate 56 is extended along the first direction and is provided with a third liquid return groove 561 with a notch upwardly disposed. The third liquid return groove 561 is connected to the second liquid return groove; the lower end of the first baffle 53 is opposite to the third liquid return groove 561; in this way, the liquid slurry formed after condensation by the first baffle 53 first flows into the third liquid return groove 561, and then flows into the material tank 2 for recovery. At the same time, if the atomized slurry floats onto the inner side wall of the third liquid return groove 561, it can also be condensed to form liquid slurry, and then flow into the material tank 2 for recovery, which is conducive to improving the recovery efficiency of the slurry.

[0042] For further information, see Figures 1 to 3 The bottom wall of the third liquid return groove 561 is provided with two third liquid return ports 5611 , and the two third liquid return ports 5611 are spaced apart along the first direction and are connected to the second liquid return groove through third pipes 57 , respectively.

[0043] Specifically, the bottom wall of the spray box 4 is provided with two fourth liquid return ports, which are spaced apart along the first direction and are respectively connected to the material tank 2 through a liquid return pipe 62; in this way, the slurry in the spray box 4 can be recovered into the material tank 2, further improving the slurry recovery efficiency.

[0044] It should be noted that, in the present invention, the liquid return pipe 62 can be an independent pipe, one end of which can directly extend into the material tank 2. Of course, the liquid return pipe 62 can also be connected to other pipes to be indirectly connected to the material tank 2.

[0045] For further information, see Figure 1 In one embodiment of the utility model, one of the two fourth liquid return ports is connected to the second liquid return tank and the material tank 2 through a three-way pipe 43, and the other of the two fourth liquid return ports is connected to the second liquid return tank through a fourth pipe 42; in this way, that is to say, one of the two liquid return pipes 62 is connected to other pipes to form the three-way pipe 43, and the other of the two liquid return pipes 62 is connected to the material tank 2 through the second liquid return tank, that is, a part of the slurry in the spray box 4 flows into the material tank 2 through the three-way pipe 43, and the other part flows to the second liquid return tank through the fourth pipe 42, and then flows into the material tank 2 for recovery, which can avoid too many long pipes and their messy placement, and simplify the overall structure of the slurry recoverable coating machine 100.

[0046] For details, please refer to Figure 1The slurry recovery component 5 also includes an exhaust fan 6, which includes an exhaust hood 61, an electric fan and a liquid return pipe 62. The exhaust hood 61 is arranged above the driving roller 3, and the electric fan is arranged in the exhaust hood 61. One end of the liquid return pipe 62 is connected to the end of the exhaust hood 61 away from the driving roller 3, and the other end is connected to the material tank 2; in this way, when the slurry is sprayed, the atomized slurry can be recovered by the exhaust fan 6 in a vacuum adsorption manner, thereby further improving the recovery rate of the slurry and reducing the cost.

[0047] For details, please refer to Figure 1 The material tank 2 is connected to a liquid inlet pipe 21 through a water pump, and one end of the liquid inlet pipe 21 away from the material tank 2 is connected to the nozzle 41 to transport the slurry in the material tank 2 to the nozzle 41 for spraying the film 200. In this way, the slurry in the material tank 2 can flow back to the nozzle 41 through the water pump and the liquid inlet pipe 21 for spraying, thereby realizing the secondary utilization of the slurry and reducing the production cost. More specifically, in one embodiment of the utility model, the water pump is a peristaltic pump.

[0048] For further information, see Figure 1 The material tank 2 is also provided with a stirrer for stirring the slurry in the material tank 2 to prevent the slurry from solidifying and being unable to be transported.

[0049] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A slurry recyclable coating machine, characterized in that: The slurry recyclable coating machine comprises: frame; A material tank, used for containing slurry; A transmission roller, arranged on the frame, for driving the film to move along its winding direction; A spray box is provided on the frame and below the driving roller and extends along the first direction. A spray head connected to the material tank pipeline is provided in the spray box, and a spray port is provided on a side wall of the spray box close to the driving roller in the second direction corresponding to the spray head, so that the spray head sprays the slurry onto the film; and, The slurry recovery assembly is arranged on the frame and is located below the driving roller, comprising a first recovery box, a second recovery box, a first baffle and a second baffle, the first recovery box extending along the first direction and spaced apart from the spray box along the second direction for allowing the film to pass through, the first recovery box having a first liquid return trough with a notch facing the spray box, the second recovery box being located below the spray box and extending along the first direction, and having a second liquid return trough with a notch upwardly disposed, the first liquid return trough and the second liquid return trough are respectively connected to the material tank pipeline, the first baffle and the second baffle are arranged between the spray box and the first recovery box, and are spaced apart along the first direction, and are used to be located at both ends of the film in the first direction, the lower end of the first baffle and the lower end of the second baffle are respectively arranged corresponding to the second liquid return trough, the inner wall of the first liquid return trough, the first baffle and the second baffle are all used to contact and condense with the atomized slurry, and guide the condensed slurry to flow into the material tank; The up-down direction, the first direction and the second direction are perpendicular to each other.

2. The slurry recyclable coating machine according to claim 1, characterized in that: The first baffle is extended in the up-down direction, and the first baffle is fixedly mounted on a side wall of the spray box facing the first recovery box.

3. The slurry recyclable coating machine according to claim 1, characterized in that: The second baffle is bent so that its upper end is connected to the first recovery box, and its lower end is located below the second recovery box and extends into the second liquid return tank.

4. The slurry recyclable coating machine according to claim 1, characterized in that: A first liquid return port is formed on the lower side wall of the first liquid return tank, and the first liquid return port is connected to the material tank through a first pipeline.

5. The slurry recyclable coating machine according to claim 1, characterized in that: The bottom wall of the second liquid return tank is provided with a second liquid return port, and the second liquid return port is connected to the material tank through a second pipeline.

6. The slurry recyclable coating machine according to any one of claims 1 to 5, characterized in that: A recovery plate is protruded from the bottom wall of the spray box toward the direction close to the first recovery box, the recovery plate is extended along the first direction, and is provided with a third liquid return groove with a notch upwardly disposed, the third liquid return groove is connected to the second liquid return groove; The lower end of the first baffle corresponds to the third liquid return groove.

7. The slurry recyclable coating machine according to claim 6, characterized in that: The bottom wall of the third liquid return tank is provided with two third liquid return ports, which are spaced apart along the first direction and are respectively connected to the second liquid return tank through third pipes.

8. The slurry recyclable coating machine according to claim 1, characterized in that: The bottom wall of the spray box is provided with two fourth liquid return ports, which are spaced apart along the first direction, one of the two fourth liquid return ports is connected to the second liquid return tank and the material tank through a three-way pipe, and the other of the two fourth liquid return ports is connected to the second liquid return tank through a fourth pipe.

9. The slurry recyclable coating machine according to claim 1, characterized in that: The slurry recovery assembly also includes an exhaust fan, which includes an exhaust hood, an electric fan and a liquid return pipe. The exhaust hood is arranged above the driving roller, and the electric fan is arranged in the exhaust hood. One end of the liquid return pipe is connected to one end of the exhaust hood away from the driving roller, and the other end is connected to the material tank.

10. The slurry recyclable coating machine according to claim 1, characterized in that: The material tank is connected to a liquid inlet pipe through a water pump, and one end of the liquid inlet pipe away from the material tank is connected to the nozzle to transport the slurry in the material tank to the nozzle to spray the film.

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