Film-covering electrostatic spraying device and method for three-proofing fabric

Abstract

The invention relates to the technical field of three-proofing fabric production, and provides a three-proofing fabric film electrostatic spraying device and method.The three-proofing fabric film electrostatic spraying device comprises a box body and a spraying mechanism, and two sets of recycling mechanisms corresponding to the two sides of a fabric respectively are arranged in the box body and used for recycling three-proofing paint exceeding the range of the sides of the fabric; the recovery mechanism comprises a mounting part and a barrel rotationally arranged on the mounting part, the barrel wall of the barrel makes contact with the side edge of the fabric, the mounting part is further provided with a strip-shaped part consistent with the barrel in direction, and the strip-shaped part is provided with a material collecting groove and a scraping strip; the three-proofing coating mist exceeding the side range of the fabric is shielded through the barrel bodies in the two sets of recycling mechanisms, so that the three-proofing coating mist falls on the barrel walls of the barrel bodies, the three-proofing coating falling on the barrel walls of the barrel bodies is scraped off by the scraping strips through rotation of the barrel bodies, and then the three-proofing coating mist falls into the material collecting groove along the scraping strips to be collected for subsequent taking and using. The three-proofing coating is recycled, the waste problem is solved, and the device is prevented from being polluted by the three-proofing coating.

Description

Technical Field

[0001] The invention relates to the technical field of triple-proof fabric production, and in particular to a coating electrostatic spraying device and method for triple-proof fabric. Background Art

[0002] In the textile industry, triple-proof fabrics are highly favored for their waterproof, oil-proof and anti-fouling properties. They are widely used in outdoor clothing, industrial protective clothing and other fields. In the production process of triple-proof fabrics, electrostatic spraying is usually used to apply the triple-proof coating on the surface of the fabric, and then the coating is completed by heating and curing.

[0003] Currently, when spraying conformal coatings on fabrics, the spray coverage is usually slightly larger than the fabric width to ensure that the fabric edges can be effectively sprayed. This results in waste of conformal coatings on both sides of the fabric, and the wasted conformal coatings will also adhere to the device, causing device pollution.

[0004] Therefore, the present invention proposes a coating electrostatic spraying device and method for triple-proof fabrics to solve the above problems. Summary of the invention

[0005] The embodiment of the present invention aims to provide a device and method for electrostatic spraying of a coating on a triple-proof fabric to solve the above-mentioned problems.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A coating electrostatic spraying device for triple-proof fabrics comprises a box body and a spraying mechanism arranged in the box body for electrostatically spraying triple-proof coatings on the fabrics. The fabric transmission path is to pass through the inside of the box body at a uniform speed. The box body is provided with two sets of recovery mechanisms corresponding to the two sides of the fabric, respectively, for recovering the triple-proof coatings that exceed the side range of the fabric. The recovery mechanism comprises a mounting part and a cylinder rotatably arranged on the mounting part. The direction of the cylinder is consistent with the direction of the fabric transmission path, and the cylinder wall is in contact with the side of the fabric. The mounting part is also provided with a strip piece consistent with the direction of the cylinder. The strip piece is provided with a material collection trough and a scraper strip. The scraper strip is arranged at an angle, and one side of the scraper strip is in close contact with the cylinder wall, and the other side is located above the material collection trough.

[0008] In an optional solution: the mounting member also includes a driving member for driving the cylinder to rotate.

[0009] In an optional scheme: the spraying mechanism includes a material chamber for placing the three-proof coating, a diverter, a plurality of conduits evenly arranged on the diverter, and a feed pump for pumping the three-proof coating into the diverter, and a plurality of electrostatic nozzles are evenly arranged on the conduit.

[0010] In an optional solution: the depth of the material collecting trough gradually increases from one end to the other end, and a return pipe is provided between the deeper end of the material collecting trough and the material cavity.

[0011] In an optional scheme: the box body is provided with several groups of conveying rollers for realizing uniform speed transmission of fabrics, the electrostatic spraying device also includes a filtering mechanism for filtering the recovered three-proof coating, the filtering mechanism includes a filter bucket arranged in the material chamber, the filter bucket is provided with two filtering areas corresponding to the return pipes in the two groups of recovery mechanisms respectively, a slide groove and a rotatable flower-shaped part are provided on one side of the material chamber, a connecting part is clamped on the slide groove, the connecting part is connected to the filter bucket, the side of the flower-shaped part is in abutment with the connecting part, and a transmission structure is provided between the flower-shaped part and any conveying roller, and the filtering mechanism also includes an elastic part for realizing the resetting of the connecting part.

[0012] In an optional solution: the electrostatic spraying device also includes a heating mechanism for heating the fabric after spraying, and the heating mechanism includes a substrate arranged in the box, the substrate is opposite to the spraying surface of the fabric, and a plurality of heating elements are evenly arranged on the substrate.

[0013] In an optional solution: the mounting member can be moved toward / away from the fabric to adjust its position, the conduit is detachably mounted on the diverter, the diverter is provided with an assembly port corresponding to and matching the conduit one by one, and the spraying mechanism also includes a plurality of sealing plugs for sealing the assembly port.

[0014] A method for coating electrostatic spraying of a three-proof fabric, using a coating electrostatic spraying device for coating the three-proof fabric described in any one of the above technical solutions, comprises the following steps:

[0015] S1: The fabric is transported at a uniform speed through the box, and the fabric is electrostatically sprayed with three-proof coatings through the spraying mechanism;

[0016] S2: The three-proof coating spray that exceeds the edge of the fabric is shielded by the cylinders in the two sets of recovery mechanisms, so that it falls on the cylinder wall. The three-proof coating that falls on the cylinder wall is scraped off by the scraper through the rotation of the cylinder, and then falls along the scraper to the material collection trough for collection and subsequent use.

[0017] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0018] When the fabric is sprayed with the three-proof coating, the three-proof coating spray that exceeds the side range of the fabric is blocked by the cylinders in the two sets of recovery mechanisms, so that it falls on the cylinder wall. The three-proof coating that falls on the cylinder wall is scraped off by the scraper through the rotation of the cylinder, and then falls along the scraper to the material collection trough for collection and subsequent use. This not only recovers the three-proof coating to solve the waste problem, but also avoids the three-proof coating from polluting the device.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of the arrangement between the fabric and two sets of recovery mechanisms in an embodiment of the present invention.

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 It is a front view of an embodiment of the present invention.

[0025] Figure 5 Schematic diagram of the structure of the filtering mechanism in the embodiment of the present invention.

[0026] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0027] Figure 7 It is a schematic diagram of the arrangement between the flow dividing member and a plurality of conduits in an embodiment of the present invention.

[0028] Notes on figure numbers: 1-fabric, 2-box, 3-spraying mechanism, 301-material chamber, 302-diverter, 303-conduit, 304-electrostatic nozzle, 305-feeding pump, 306-assembly port, 307-sealing plug, 4-recovery mechanism, 401-mounting part, 402-cylinder, 403-driving part, 404-return pipe, 405-strip part, 406-material collection trough, 407-scraper, 5-heating mechanism, 501-base plate, 502-heating part, 6-conveyor roller, 7-filtering mechanism, 701-filter bucket, 7011-filtering area, 702-connecting part, 703-slide, 704-elastic part, 705-flower-shaped part, 706-transmission structure. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0030] See also Figure 1 to Figure 3 , a coating electrostatic spraying device for three-proof fabrics, comprising a box body 2 and a spraying mechanism 3 arranged in the box body 2 for electrostatically spraying the three-proof coating on the fabric, the fabric transmission path is to pass through the box body 2 at a uniform speed, the box body 2 is provided with two sets of recovery mechanisms 4 corresponding to the two sides of the fabric, respectively, for recovering the three-proof coating beyond the side range of the fabric, the recovery mechanism 4 comprises a mounting member 401 and a cylinder 402 rotatably arranged on the mounting member 401, the direction of the cylinder 402 is consistent with the direction of the fabric transmission path, and the cylinder wall of the cylinder 402 is in contact with the side of the fabric, the mounting member 401 is also provided with a strip member 405 consistent with the direction of the cylinder 402, the strip member 405 is provided with a material collection groove 406 and a scraper 407, the scraper 407 is arranged at an angle, and one side of the scraper 407 is in close contact with the cylinder wall of the cylinder 402, and the other side is located above the material collection groove 406.

[0031] It should be noted that this application is applicable to single-sided spraying of fabrics; Figure 1 , Attachment Figure 2 The angle and orientation shown are described, and the contact between the cylinder wall 402 and the side of the fabric satisfies: the fabric spraying surface is not lower than the horizontal center line of the cylinder 402, ensuring that the vertical projections of the cylinder 402 and the fabric spraying surface do not overlap, so as to avoid the cylinder 402 blocking the normal adhesion of the three-proof coating to the fabric; in addition, the electrostatic spraying device also includes an electrostatic generator for generating an electrostatic field (not shown in the figure), which belongs to the prior art and will not be described here.

[0032] The fabric is uniformly transported through the box 2, and the three-proof coating is electrostatically sprayed on the fabric through the spraying mechanism 3. During spraying, the three-proof coating spray that exceeds the side range of the fabric is shielded by the cylinder 402 in the two sets of recovery mechanisms 4, so that it falls on the cylinder wall of the cylinder 402. The three-proof coating that falls on the cylinder wall of the cylinder 402 is scraped off by the scraper 407 through the rotation of the cylinder 402 (the rotation direction of the cylinder 402 is: to make the three-proof coating that falls on the cylinder wall of the cylinder 402 away from the non-sprayed surface of the fabric), and then falls along the scraper 407 to the collection trough 406 for collection and subsequent use. This not only recovers the three-proof coating to solve the waste problem, but also avoids the three-proof coating from polluting the device.

[0033] See also Figure 1 and Figure 2In one embodiment of the present invention, the mounting member 401 further includes a driving member 403 for driving the cylinder 402 to rotate. The driving member 403 is a rotating device such as a servo motor, a reduction motor, etc. in the prior art, which is not limited or elaborated herein.

[0034] See also Figure 1 In one embodiment of the present invention, the spraying mechanism 3 includes a material chamber 301 for placing the three-proof coating, a diverter 302, a plurality of conduits 303 evenly arranged on the diverter 302, and a feed pump 305 for pumping the three-proof coating into the diverter 302, and a plurality of electrostatic nozzles 304 are evenly arranged on the conduit 303.

[0035] In this embodiment, the three-proof coating in the material chamber 301 is pumped into the diverter 302 by the feed pump 305, and then diverted into each conduit 303 and sprayed out through the electrostatic nozzle 304 to electrostatically spray the three-proof coating on the fabric.

[0036] See also Figure 1 to Figure 3 In one embodiment of the present invention, the depth of the material collecting trough 406 gradually increases from one end to the other end, and a return pipe 404 is provided between the deeper end of the material collecting trough 406 and the material cavity 301. The three-proof coating collected in the material collecting trough 406 flows toward the deeper end of the material collecting trough 406 under the action of gravity, and then returns to the material cavity 301 through the return pipe 404 for reuse.

[0037] See also Figure 1 , Figures 4 to 6 In one embodiment of the present invention, the box body 2 is provided with a plurality of groups of conveying rollers 6 for realizing uniform speed transmission of fabrics, the electrostatic spraying device further includes a filtering mechanism 7 for filtering the recovered three-proof coating, the filtering mechanism 7 includes a filter bucket 701 arranged in the material chamber 301, the filter bucket 701 is provided with two filtering areas 7011 corresponding to the return pipes 404 in the two groups of recovery mechanisms 4 (the lower ends of the two return pipes 404 are respectively located above the two filtering areas 7011), a slide groove 703 and a rotatable flower-shaped member 705 are provided on one side of the material chamber 301, and the slide groove 703 is provided with a rotatable flower-shaped member 705. A connecting piece 702 is provided on the card, and the connecting piece 702 is connected to the filter bucket 701. The side of the flower-shaped piece 705 is in contact with the connecting piece 702, and a transmission structure 706 is provided between the flower-shaped piece 705 and any conveying roller 6 (the transmission structure 706 includes a transmission structure composed of a plurality of transmission wheels, transmission chains or transmission belts, which is the prior art and is not described here). The filtering mechanism 7 also includes an elastic piece 704 for realizing the reset of the connecting piece 702 (the elastic piece 704 is a spring, elastic rope, etc. in the prior art, as long as it can realize the reset of the connecting piece 702, this embodiment is not limited here).

[0038] It should be noted that the plurality of groups of conveying rollers 6 are driven by servo motors.

[0039] In this embodiment, the three-proof coatings recovered by the two sets of recovery mechanisms 4 fall into the corresponding filtering area 7011 for filtration, so as to remove impurities such as dust and lint that may be contained in the recovered three-proof coatings. The flower-shaped member 705 is driven to rotate by the conveying roller 6. When the side of the flower-shaped member 705 is in contact with the connecting member 702 and the elastic member 704, the filter bucket 701 is in a corresponding shaking state during the rotation of the flower-shaped member 705, so that the recovered three-proof coatings are filtered quickly and efficiently.

[0040] See also Figure 1 In one embodiment of the present invention, the electrostatic spraying device also includes a heating mechanism 5 for heating the fabric after it is sprayed. The heating mechanism 5 includes a substrate 501 arranged in the box 2, and the substrate 501 is opposite to the spraying surface of the fabric. A plurality of heating elements 502 are evenly arranged on the substrate 501 (the heating elements 502 are electric heating tubes, electric heating wires, etc. in the prior art, which are not limited in this embodiment). After the fabric is sprayed with the three-proof coating, it passes through the heating mechanism 5, and the heating element 502 heats the fabric and the sprayed three-proof coating, which plays a role of heating and curing, thereby completing the fabric coating.

[0041] See also Figure 2 and Figure 7 In one embodiment of the present invention, the mounting member 401 can be moved toward / away from the fabric to adjust its position, the conduit 303 is detachably mounted on the diverter 302, the diverter 302 is provided with an assembly port 306 corresponding to and matching the conduit 303, and the spraying mechanism 3 also includes a plurality of sealing plugs 307 for blocking the assembly port 306.

[0042] In this embodiment, the mounting member 401 can be moved toward / away from the fabric by telescopic rod extension, screw thread matching and other methods in the prior art, and the position of the cylinder 402 can be adjusted so that its cylinder wall contacts the side of the fabric, thereby adapting to the electrostatic spraying requirements of fabrics of different widths. An appropriate number of conduits 303 are selected and assembled according to the width of the fabric, and threads are used between the conduits 303 and the sealing plug 307 and the assembly port 306. When the width of the fabric is small, the corresponding number of conduits 303 are removed, and the corresponding assembly port 306 is sealed with the sealing plug 307.

[0043] The present invention also provides a method for electrostatic spraying of a three-proof fabric, which adopts the electrostatic spraying device for coating a three-proof fabric according to any one of the above technical solutions, comprising the following steps:

[0044] S1: The fabric is uniformly transported through the box 2, and the fabric is electrostatically sprayed with a three-proof coating through the spraying mechanism 3;

[0045] S2: The three-proof coating spray that exceeds the edge of the fabric is shielded by the cylinder 402 in the two sets of recovery mechanisms 4, so that it falls on the wall of the cylinder 402. The three-proof coating that falls on the wall of the cylinder 402 is scraped off by the scraper 407 through the rotation of the cylinder 402, and then falls along the scraper 407 to the material collection trough 406 for collection and subsequent use.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A coating electrostatic spraying device for three-proof fabrics, comprising a box (2) and a spraying mechanism (3) arranged in the box (2) for electrostatically spraying the three-proof coating on the fabrics, wherein the fabric transmission path is to pass through the inside of the box (2) at a uniform speed, and is characterized in that: The box body (2) is provided with two groups of recovery mechanisms (4) corresponding to the two sides of the fabric respectively, and used for recovering the three-proof coating beyond the range of the fabric side. The recovery mechanism (4) comprises a mounting member (401) and a cylinder (402) rotatably arranged on the mounting member (401). The direction of the cylinder (402) is consistent with the direction of the fabric transmission path, and the cylinder wall of the cylinder (402) is in contact with the side of the fabric. The mounting member (401) is also provided with a strip member (405) in the same direction as the cylinder (402). The strip member (405) is provided with a material collection groove (406) and a scraper (407). The scraper (407) is inclined, and one side of the scraper (407) is in close contact with the cylinder wall of the cylinder (402), and the other side is located above the material collection groove (406).

2. The electrostatic spray coating device for triple-proof fabrics according to claim 1, characterized in that: The mounting member (401) further comprises a driving member (403) for driving the cylinder (402) to rotate.

3. The electrostatic spray coating device for triple-proof fabrics according to claim 1, characterized in that: The spraying mechanism (3) comprises a material chamber (301) for placing the three-proof coating, a diverter (302), a plurality of conduits (303) evenly arranged on the diverter (302), and a feed pump (305) for pumping the three-proof coating into the diverter (302), and a plurality of electrostatic spray heads (304) evenly arranged on the conduit (303).

4. The electrostatic spray coating device for triple-proof fabrics according to claim 1, characterized in that: The depth of the material collecting trough (406) gradually increases from one end to the other end, and a material return pipe (404) is provided between the deeper end of the material collecting trough (406) and the material cavity (301).

5. The electrostatic spray coating device for coating triple-proof fabrics according to claim 4, characterized in that: The box body (2) is provided with a plurality of groups of conveying rollers (6) for realizing uniform speed transmission of the fabric. The electrostatic spraying device further comprises a filtering mechanism (7) for filtering the recovered three-proof coating. The filtering mechanism (7) comprises a filter bucket (701) arranged in the material chamber (301). The filter bucket (701) is provided with two filtering areas (7011) respectively corresponding to the return pipes (404) in the two groups of recovery mechanisms (4). A sliding member (701) is provided on one side of the material chamber (301). A groove (703) and a rotatable flower-shaped member (705), a connecting member (702) is clamped on the sliding groove (703), the connecting member (702) is connected to the filter bucket (701), the side of the flower-shaped member (705) is in contact with the connecting member (702), and a transmission structure (706) is provided between the flower-shaped member (705) and any conveying roller (6), and the filtering mechanism (7) also includes an elastic member (704) for realizing the reset of the connecting member (702).

6. The electrostatic spray coating device for triple-proof fabrics according to claim 1, characterized in that: The electrostatic spraying device further comprises a heating mechanism (5) for heating the fabric after spraying. The heating mechanism (5) comprises a base plate (501) arranged in the box (2). The base plate (501) is opposite to the spraying surface of the fabric. A plurality of heating elements (502) are evenly arranged on the base plate (501).

7. The electrostatic spray coating device for triple-proof fabrics according to claim 1, characterized in that: The mounting member (401) can be moved toward or away from the fabric to adjust its position; the conduit (303) is detachably mounted on the diverter (302); the diverter (302) is provided with an assembly port (306) that corresponds one-to-one with and is compatible with the conduit (303); and the spraying mechanism (3) further comprises a plurality of sealing plugs (307) for sealing the assembly port (306).

8. A method for coating electrostatic spraying of triple-proof fabrics, using the coating electrostatic spraying device of triple-proof fabrics according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: The fabric is transported at a uniform speed through the box (2), and the fabric is electrostatically sprayed with a three-proof coating through a spraying mechanism (3); S2: The three-proof coating spray that exceeds the edge of the fabric is shielded by the cylinder (402) in the two sets of recovery mechanisms (4) so ​​that it falls on the cylinder wall of the cylinder (402). The cylinder (402) rotates so that the three-proof coating that falls on the cylinder wall of the cylinder (402) is scraped off by the scraper (407) and then falls along the scraper (407) into the material collection trough (406) for collection and subsequent use.

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