A precision coating apparatus for waterproofing of down jackets

Abstract

The present application relates to down jacket manufacturing technical field, provide a kind of for down jacket waterproof coating precision coating equipment, including rack, further including lifting type being arranged on the cover piece of rack and for the spraying assembly of waterproof coating to fabric spraying, the cover piece is arranged with several through orifice according to the cutting piece planning track of the set fabric on, and the contour of through orifice is consistent with the contour of the cutting piece of corresponding type, fabric is intermittently transported through with appearance surface horizontally upwards below cover piece, during stopping transmission, cover piece is first lowered to with fabric appearance surface contact, then by spraying assembly to fabric spraying waterproof coating, the cover piece is hollow inside and its upper side is reticulated;By the covering effect of cover piece, so that the part of fabric only through orifice will have waterproof coating to fall and adhere, i.e. only cutting piece part is coated with waterproof coating, realize precision coating, avoid the waste of waterproof coating, and the waterproof coating falling on the upper side of cover piece falls in the inside of cover piece and is recycled, for subsequent reuse.

Description

Technical Field

[0001] This invention relates to the field of down jacket manufacturing technology, specifically a precision coating device for waterproof coatings on down jackets. Background Technology

[0002] To ensure that down jackets remain comfortable and warm in rainy, snowy, or humid conditions, a waterproof coating is usually applied to the surface of the down jacket fabric to give it water-repellent and waterproof properties.

[0003] In the existing down jacket production process, the waterproof coating treatment of the fabric is usually completed before the fabric is cut. Specifically, the roll of raw fabric is first continuously coated with a waterproof coating to make the entire roll waterproof. Then, according to the design pattern of different parts of the down jacket, the entire coated fabric is cut into several pieces (such as front, back, and sleeve pieces). Finally, the pieces are sewn and assembled into a complete down jacket. However, since the waterproof coating is applied to the entire fabric before cutting, the pieces cut according to the garment pattern only account for a portion of the entire fabric. The edges of the fabric and the gaps between the patterns are scraps that cannot be used in down jacket manufacturing. These scraps have already undergone a complete waterproof coating treatment and are discarded along with the scraps, resulting in a direct waste of the waterproof coating material.

[0004] Therefore, the present invention proposes a precision coating device for waterproof coating of down jackets to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a precision coating device for waterproof coatings on down jackets, in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A precision coating device for waterproof coating of down jackets includes a frame, a lifting cover mounted on the frame, and a spraying assembly for spraying waterproof coating onto the fabric. The cover has several openings arranged according to the fabric's cut pattern, and the outline of the openings matches the outline of the corresponding type of cut piece. The fabric is intermittently conveyed below the cover with its outer surface facing upwards. During periods of inactivity, the cover first descends to contact the outer surface of the fabric, and then the waterproof coating is sprayed onto the fabric by the spraying assembly. The cover is hollow inside and its upper side is mesh-like to collect the waterproof coating that falls onto the frame during spraying.

[0007] In one alternative: the precision coating equipment further includes several telescopic components for driving the cover to rise and fall.

[0008] In one alternative: multiple covering components are provided, and the opening specifications on different covering components are different to meet the needs of multiple types of cut pieces. One end of the telescopic component is provided with a connecting seat, and the covering component is detachably connected to the connecting seat.

[0009] In one alternative: the precision coating device further includes a collection box for collecting the recycled waterproof coating, the collection box being in communication with a cover.

[0010] In one alternative: the precision coating equipment further includes a support platform for pressing the current spraying section of the fabric together with the masking element. The support platform includes a frame and unit components arranged on the frame to form a platform. Each unit component includes a base block made of thermally conductive material and a heating element disposed in the base block. The heating element in the unit component that is perpendicular to the opening area on the masking element is in a working state to heat and cure the waterproof coating on the fabric, while the heating elements in the other unit components are in a closed state.

[0011] In one alternative: the cover is further provided with a rubber pad on its underside.

[0012] In one alternative: the base block is further fitted with a heat insulation sleeve to prevent heat transfer to adjacent base blocks.

[0013] In one alternative: the precision coating equipment further includes a vibration component for causing the current spraying section of the fabric to vibrate. After the waterproof coating is applied to the current spraying section of the fabric, the vibration effect makes the waterproof coating on the fabric uniform, so that the thickness of the formed waterproof coating is consistent.

[0014] In one alternative: the vibration assembly includes several vibration motors mounted on a support platform.

[0015] In one alternative: the precision coating equipment further includes several sets of guide rollers for guiding fabric transfer.

[0016] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: 1. By using the covering element to cover the fabric, the waterproof coating will only be applied to the opening of the fabric. That is, only the cut piece is coated with a waterproof coating, which achieves precise coating and avoids waste of the waterproof coating. The waterproof coating that falls on the upper side of the covering element will fall into the inside of the covering element for recycling and reuse later. 2. A support platform and a cover are set up to press against the current spraying section of the fabric, restricting the waterproof coating in the limited area of ​​the opening and preventing edge dripping. In addition, the waterproof coating is heated and cured by heating the fabric coating area through corresponding unit components. 3. After the waterproof coating is sprayed, the current sprayed section of the fabric is vibrated by the vibration component. The vibration effect makes the waterproof coating on the fabric even and uniform, resulting in a consistent thickness of the waterproof coating and further improving the accuracy of the waterproof coating application.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the cover in an embodiment of the present invention.

[0021] Figure 3 This is a top view of the support platform in an embodiment of the present invention.

[0022] Figure 4 For this Figure 3 Enlarged view of point A in the middle.

[0023] Figure label annotations: 1-Down jacket fabric, 2-Frame, 3-Covering component, 4-Spraying component, 5-Telescopic component, 6-Connecting seat, 7-Supporting platform, 701-Frame, 702-Unit component, 7021-Base block, 7022-Heating component, 7023-Insulation sleeve, 8-Vibration component, 9-Collection box, 10-Guide roller, 11-Opening, 12-Rubber pad. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Please see Figure 1 and Figure 2A precision coating device for waterproof coating of down jackets includes a frame 2, a cover 3 (flat in shape) that is lifted and mounted on the frame 2, and a spraying assembly 4 for spraying waterproof coating onto the fabric. The cover 3 has a plurality of openings 11 arranged according to the fabric's cut pattern planning trajectory, and the outline of the openings 11 is consistent with the outline of the corresponding type of cut. The fabric is intermittently conveyed under the cover 3 with its outer surface facing upward. During the period of no conveying, the cover 3 first descends to contact the outer surface of the fabric, and then the waterproof coating is sprayed onto the fabric by the spraying assembly 4. The cover 3 is hollow inside and its upper side is mesh-like to collect the waterproof coating that falls onto the frame 2 during spraying.

[0026] It should be noted that the spraying assembly 4 includes a storage tank for storing waterproof coating (liquid), a spraying pipe spanning the fabric (with the direction consistent with the width of the fabric), multiple nozzles evenly arranged on the spraying pipe, a delivery pump for pumping waterproof coating into the spraying pipe (the waterproof coating is pumped into the spraying pipe by the delivery pump and then sprayed out in a mist form through the nozzles), and a drive structure for driving the spraying pipe to move along the fabric transmission direction (which can be a screw-slider structure (the spraying pipe is connected to the slider), or an electric telescopic rod directly driving the spraying pipe, etc.). These are existing technologies, and the specific component composition of the spraying assembly 4 and the connection and linkage relationship between the components will not be described in detail here.

[0027] The fabric is intermittently conveyed below the cover member 3 with its outer surface facing upwards (the fabric stops for a set duration after each set conveying length). During the stop conveying period, the cover member 3 first descends to make contact with the outer surface of the fabric, and then the waterproof coating is sprayed onto the fabric by the spraying component 4. Due to the covering effect of the cover member 3, the waterproof coating is only applied to the part of the fabric at the opening 11, that is, only the cut piece is coated with a waterproof coating, achieving precise coating and avoiding waste of the waterproof coating. After the spraying of a section of fabric is completed, the cover member 3 moves upwards to reset, and the fabric conveying of the set length is repeated. The waterproof coating that falls on the upper side of the cover member 3 is collected inside the cover member 3 for later use.

[0028] Furthermore, the precision coating equipment also includes several sets of guide rollers 10 for guiding the fabric transfer.

[0029] Please see Figure 1 In one embodiment of the present invention, the precision coating equipment further includes a plurality of telescopic components 5 for driving the cover 3 to rise and fall, wherein the telescopic components 5 are telescopic cylinders, electric telescopic rods, etc. in the prior art; The cover 3 is provided in multiple ways, and the openings 11 on different cover 3 are of different specifications to meet the needs of multiple types of cut pieces (i.e., including multiple specifications of openings 11 corresponding to different types of cut pieces). One end of the telescopic member 5 is provided with a connecting seat 6. The cover 3 is detachably connected to the connecting seat 6 (the cover 3 and the connecting seat 6 can be detachably connected by bolts, buckles, etc., as long as the cover 3 can be replaced. This embodiment does not limit this.

[0030] In this embodiment, the cover 3 is raised and lowered by several telescopic members 5 to achieve contact / reset with the fabric. The cover 3 with the corresponding opening 11 is selected according to the actual needs of the cut piece type, so as to obtain the target type cut piece coated with waterproof coating.

[0031] Furthermore, in this embodiment, the precision coating device also includes a collection box 9 for collecting the recovered waterproof coating. The collection box 9 is connected to the cover 3 via a hose. The cover 3 is provided with a corresponding liquid outlet port (not shown in the figure). The end of the hose away from the collection box 9 is detachably connected to the liquid outlet port on the cover 3 (e.g., the end of the hose and the liquid outlet port are screwed together with a threaded sleeve and equipped with corresponding sealing measures (e.g., sealing rings) to achieve sealing, or other forms, which are not limited in this embodiment). When replacing the cover 3, the hose is connected to the target cover 3. Furthermore, the upper side of the cover 3, the inner wall of the cover 3, the inner wall of the hose, and the inner wall of the collection box 9 are all coated with an anti-stick coating (e.g., a polytetrafluoroethylene coating) to prevent the waterproof coating from adhering, thus avoiding the adhesion of liquid waterproof coating and ensuring its full recovery.

[0032] Based on the previous embodiment, please refer to Figure 1 , Figure 3 and Figure 4In one embodiment of the present invention, the precision coating device further includes a support platform 7 for cooperating with the masking member 3 to press against the current spraying section of the fabric. The support platform 7 includes a frame 701 and unit components 702 arranged on the frame 701 to form a platform. The unit component 702 includes a base block 7021 made of a thermally conductive material (such as copper, stainless steel, etc.) and a heating element 7022 disposed in the base block 7021 (the heating element 7022 is an electric heating plate, electric heating wire, etc. in the prior art). The heating element 702 in the unit component 702 is perpendicular to the opening 11 area on the masking member 3. 022 is in working state (the correspondence between the distribution of the openings 11 arranged on different covering parts 3 and the unit 702 can be stored in the background system of the device. When in use, the instruction signal corresponding to the current covering part 3 is triggered through the control panel of the device, so that the corresponding unit 702 performs the heating action. The above is a mature existing technology and there are no technical obstacles, so it will not be elaborated here). The waterproof coating on the fabric is heated and cured. The heating element 7022 in the other unit 702 is in the off state. The area-specific heating mode is adopted instead of the whole heating mode to avoid ineffective energy consumption.

[0033] In this embodiment, in the area of ​​the opening 11 where the waterproof coating is sprayed, the liquid waterproof coating will flow laterally to the edge of the opening 11, affecting the coating accuracy (causing the coating thickness to be less than the design thickness and the coated fabric to become larger). Especially when the design coating thickness is large and the spraying amount per unit area is high, the above-mentioned edge flow phenomenon is significantly aggravated. Therefore, the support platform 7 is set up to cooperate with the cover 3 to press against the current spraying section of the fabric, restricting the waterproof coating in the area of ​​the opening 11 and avoiding the edge flow phenomenon. In addition, the corresponding unit 702 heats the fabric spraying area (i.e., the area corresponding to the opening 11) to achieve heat curing of the waterproof coating (the heating element 7022 heats the base block 7021, which is then transferred to the fabric).

[0034] Furthermore, in this embodiment, the lower side of the cover 3 is also provided with a rubber pad 12. By setting the rubber pad 12, the sealing between the lower edge of the opening 11 and the fabric is ensured, and the contact is flexible, which plays a protective contact role. The rubber pad 12 is a heat-insulating rubber pad, which is used to block the heat transfer to the cover 3 and prevent the cover 3 from being heated (that is, the unit 702 that spans the edge of the opening 11 belongs to the category that is perpendicular to the area of ​​the opening 11. When this type of unit 702 is heated, a part of it overlaps with the non-opening 11 area of ​​the cover 3, and there is a heat-induced deformation) causing the recycled waterproof coating to dry and solidify.

[0035] Furthermore, in this embodiment, a heat insulation sleeve 7023 is also provided on the base block 7021 to prevent heat transfer to adjacent base blocks 7021, that is, to prevent the heat-generating unit 702 from transferring heat to the unit 702 that does not need to generate heat, thereby affecting the heating efficiency and effect on the fabric.

[0036] Based on the previous embodiment, please refer to Figure 1 In one embodiment of the present invention, the precision coating device further includes a vibration component 8 for making the current spraying section of the fabric vibrate. After the waterproof coating is sprayed onto the current spraying section of the fabric, the vibration effect makes the waterproof coating on the fabric uniform and the thickness of the formed waterproof coating is consistent.

[0037] In this embodiment, since the waterproof coating is sprayed by atomizing liquid coating into droplets, its trajectory is random and uncontrollable due to airflow turbulence and air resistance during the process of adhering to the fabric. When these droplets of different sizes and different flight paths land on the fabric, the superimposed distribution will inevitably have statistical thickness fluctuations and a certain degree of unevenness. Therefore, after the waterproof coating is sprayed, the current sprayed section of the fabric is made to vibrate through the vibration component 8. The vibration effect makes the waterproof coating on the fabric uniform, so that the thickness of the formed waterproof coating is consistent, and further improves the accuracy of the waterproof coating application. The specific steps are: spraying waterproof coating → making the current sprayed section of the fabric vibrate for a set time to achieve uniform waterproof coating → heating and curing the waterproof coating.

[0038] Furthermore, in this embodiment, the vibration assembly 8 includes several vibration motors mounted on the support platform 7.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision coating device for waterproof coating of down jackets, comprising a frame (2), characterized in that, It also includes a lifting cover (3) mounted on the frame (2) and a spraying assembly (4) for spraying waterproof coating onto the fabric. The cover (3) has several openings (11) arranged according to the fabric's cut piece planning trajectory, and the outline of the openings (11) is consistent with the outline of the corresponding type of cut piece. The fabric is intermittently transported under the cover (3) with its outer surface facing upward. During the period when the transport stops, the cover (3) first descends to contact the outer surface of the fabric, and then the waterproof coating is sprayed onto the fabric through the spraying assembly (4). The cover (3) is hollow inside and its upper side is mesh-like, used to collect the waterproof coating that falls onto the frame (2) during spraying.

2. The precision coating equipment for waterproof coating of down jackets according to claim 1, characterized in that, The precision coating equipment also includes several telescopic components (5) for driving the cover (3) to rise and fall.

3. The precision coating equipment for waterproof coating of down jackets according to claim 2, characterized in that, The cover (3) is provided in multiple ways, and the openings (11) on different cover (3) are of different specifications to meet the needs of multiple types of cut pieces. One end of the telescopic member (5) is provided with a connecting seat (6), and the cover (3) is detachably connected to the connecting seat (6).

4. The precision coating equipment for waterproof coating of down jackets according to claim 1, characterized in that, The precision coating equipment also includes a collection box (9) for collecting the recovered waterproof coating, the collection box (9) being connected to the cover (3).

5. The precision coating equipment for waterproof coating of down jackets according to claim 3, characterized in that, The precision coating equipment also includes a support platform (7) for pressing the current spraying section of the fabric together with the cover (3). The support platform (7) includes a frame (701) and unit components (702) arranged on the frame (701) to form a platform. The unit component (702) includes a base block (7021) made of thermally conductive material and a heating element (7022) disposed in the base block (7021). The heating element (7022) in the unit component (702) that is perpendicular to the opening (11) area on the cover (3) is in working state and heats and cures the waterproof coating on the fabric. The heating elements (7022) in the other unit components (702) are in closed state.

6. The precision coating equipment for waterproof coating of down jackets according to claim 5, characterized in that, The cover (3) is also provided with a rubber pad (12) on its lower side.

7. The precision coating equipment for waterproof coating of down jackets according to claim 5, characterized in that, The base block (7021) is also fitted with a heat insulation sleeve (7023) to prevent heat transfer to adjacent base blocks (7021).

8. The precision coating equipment for waterproof coating of down jackets according to claim 5, characterized in that, The precision coating equipment also includes a vibration component (8) for making the current spraying section of the fabric vibrate. After the waterproof coating is sprayed onto the current spraying section of the fabric, the vibration effect makes the waterproof coating on the fabric even and uniform, so that the thickness of the formed waterproof coating is consistent.

9. The precision coating equipment for waterproof coating of down jackets according to claim 8, characterized in that, The vibration assembly (8) includes several vibration motors mounted on the support platform (7).

10. The precision coating equipment for waterproof coating of down jackets according to claim 1, characterized in that, The precision coating equipment also includes several sets of guide rollers (10) for guiding the fabric transfer.

Images