Warp-knitted fabric antibacterial coating device and coating machine

Abstract

The utility model relates to a warp knitting fabric antibacterial coating device and a coating machine. The coating device comprises a guide roller set and a coating nozzle set, the coating nozzle set is connected with a glue pump and a coating tank, the coating nozzle set comprises a plurality of coating nozzles which are arranged in a straight line and are vertically and upwards arranged, the coating device further comprises a shielding cover, the shielding cover comprises a top plate, a side plate and a bottom plate, a rectangular spraying opening is formed in the middle area of the top plate, and the side plate is connected with the bottom plate. A nozzle mounting opening is formed in the bottom plate, and a waste liquid collecting tank capable of collecting waste liquid is formed in the upper side of the bottom plate; an air exhaust cover is further arranged on the outer side of the side plate in a surrounding mode, an opening of the air exhaust cover is vertically upward, the air exhaust cover is connected with an air exhaust pipe, and the tail end of the air exhaust pipe is connected with an air exhaust pump. According to the utility model, the coating nozzle group is arranged upwards, and the shielding cover is arranged on the outer side of the coating nozzle group, so that not only can a spraying area be restrained, but also excessive sparse spray on the periphery can be prevented from drifting away; the exhaust hood can exhaust air in the gap between the top plate and the fabric, and spray diffusion is further prevented.

Description

Technical Field

[0001] The utility model relates to a coating device, in particular to an antibacterial coating device and a coating machine for warp knitted fabrics. Background Technique

[0002] Fabrics are divided into warp knitted fabrics and weft knitted fabrics according to the knitting process. Compared with weft knitted fabrics, warp knitted fabrics have the advantages of good dimensional stability, firmness, good anti - run - off property, diversity of patterns and textures, easy washing and maintenance, etc., so they are widely used in various fabric products. In some cases, warp knitted fabrics may need to coat antibacterial agents on the surface of warp knitted fabrics through a coating process to enhance their antibacterial performance.

[0003] The existing coating processes are mainly divided into roll coating and spraying. Compared with roll coating, spraying has the following advantages: wide applicability, the spraying process is applicable to the surfaces of objects of various shapes, especially complex shapes and irregular curved surfaces, while the roll coating process is generally more applicable to flat and larger - sized substrates, and it may be difficult to achieve coating for substrates with complex shapes; adjustable thin coating thickness, the spraying technology can achieve delicate coating, with uniform and adjustable thin coating thickness, and can form a dense protective film on the surface of the object. Due to the limitation of the working principle, it is difficult for the roll coating method to achieve a relatively thick coating, and it is usually applicable to the requirement of coating relatively thin coatings; high production efficiency, compared with traditional brushing or dipping methods, the spraying technology can complete the coating of the surface coating more efficiently and can dry quickly in a short time, thereby improving production efficiency. Although the roll coating process is also applicable to large - area coating, it may be slightly inferior to the spraying process in terms of coating speed and drying time.

[0004] However, the spraying process is prone to generating splashing liquid beads, which not only pollute the equipment but also are easily inhaled by workers, affecting the health of workers. Summary of the Invention

[0005] The utility model provides an antibacterial coating device and a coating machine for warp knitted fabrics, which solve the problem that the spraying process in the prior art is prone to generating splashing liquid beads.

[0006] The above technical problems of the present utility model are mainly solved by the following technical solutions: A warp knitted fabric antibacterial coating device includes a guide roller group and a coating nozzle group. The coating nozzle group is connected to a glue pump and a paint tank. It is characterized in that: the guide roller group can guide the fabric to pass through the spraying area of the coating nozzle group horizontally and at a uniform speed. The coating nozzle group includes a number of coating nozzles arranged in a line and vertically upward. The coating device further includes a shielding cover. The shielding cover includes a top plate, side plates and a bottom plate. A rectangular spraying opening is formed in the middle area of the top plate. A nozzle installation opening is formed on the bottom plate. The overall area of the nozzle installation opening is within the projected area of the spraying opening. A waste liquid collection groove capable of collecting waste liquid is formed on the upper side of the bottom plate. The top plate is arranged close to the fabric on its upper side, and the distance between the two is controlled within 10 millimeters. A hollow air extraction cover is also circumferentially arranged outside the side plates. The opening of the air extraction cover is vertically upward. The air extraction cover is connected to an air extraction pipe, and the end of the air extraction pipe is connected to an air extraction pump.

[0007] In the present utility model, the coating nozzle group is arranged upward and a shielding cover is arranged outside the coating nozzle group. In this way, the spray can only be ejected from the rectangular spraying opening. This can not only confine the spraying area, but also prevent the overly sparse spray from spreading outside. The spray blocked by the shielding cover will gradually gather and liquefy on the top plate and side plates, and finally drip into the waste liquid collection groove below. The spray ejected from the spraying opening will directly adhere to the upper fabric. At the same time, the air extraction cover can also extract air from the gap between the top plate and the fabric, further preventing the spray from spreading.

[0008] The present utility model also provides a coating machine, which includes a feeding roller, a coating device, a drying device and a winding roller. It is characterized in that the coating device is the above-mentioned warp knitted fabric antibacterial coating device. Since the above-mentioned warp knitted fabric antibacterial coating device has the above-mentioned technical effects, the coating machine with this coating device also has the same technical effects.

[0009] Further, a slitting component is also provided between the drying device and the winding roller. The slitting component includes a bottom knife roller, a knife groove arranged on the bottom knife roller, a cutting knife roller and slitting circular knives arranged on the cutting knife roller. After the fabric is coated, waste edge areas where coating is not performed or the coating is uneven are likely to exist on both sides of the fabric. This part needs to be cut off. The slitting component can perform on-line slitting of the coated fabric after drying to cut off the waste edges on both sides.

[0010] Further, the coating machine also includes a waste edge winding roller and two winding devices arranged on the waste edge winding roller, which can wind and collect the cut waste edges.

[0011] Therefore, the utility model has the following characteristics compared with the prior art: 1. By arranging the coating nozzle group upward and providing a shielding cover outside the coating nozzle group, the utility model can not only restrict the spraying area, but also prevent the scattered spray at the periphery from drifting away; 2. The air extraction cover can extract air from the gap between the top plate and the fabric, further preventing the spray from spreading; 3. The slitting assembly can slit the dried coated fabric online and cut off the waste edges on both sides. Brief Description of the Drawings

[0012] Appendix Figure 1 is a schematic structural view of a warp knitted fabric antibacterial coating device;

[0013] Appendix Figure 2 is a schematic structural view of a coating machine. Detailed Embodiments

[0014] The technical solutions of the present utility model will be further specifically described below through embodiments in conjunction with the drawings.

[0015] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0016] Embodiment 1: See Figure 1, A warp knitted fabric antibacterial coating device, including a guide roller group 100 and a coating nozzle group 200. The coating nozzle group is connected with a supply pipe 230, a glue pump 210 and a coating tank 220. The guide roller group can guide the fabric to pass through the spraying area of the coating nozzle group at a uniform speed in a horizontal state. The coating nozzle group includes several coating nozzles arranged in a line and vertically upward. The coating device further includes a shielding cover 300, which includes a top plate 310, side plates 320 and a bottom plate 330. A rectangular spraying port 340 is opened in the middle area of the top plate. A nozzle installation port 350 is opened on the bottom plate. The whole of the nozzle installation port is located within the projected area of the spraying port. The edge of the nozzle installation port is turned up. A waste liquid collection tank 360 capable of collecting waste liquid is formed on the upper side of the bottom plate. The waste liquid collection tank is connected with a waste liquid collection pipe 370, and the waste liquid collection pipe is connected with a waste liquid tank 380. The top plate is arranged close to the fabric on its upper side, and the distance between the two is controlled within 5 to 10 millimeters. A hollow air extraction cover 400 is also arranged around the outside of the side plate. The opening of the air extraction cover is vertically upward. The air extraction cover is connected with an air extraction pipe 410, and the end of the air extraction pipe is connected with an air extraction pump 420. A filter element 430 is arranged in the middle of the air extraction pipe.

[0017] In this embodiment, by arranging the coating nozzle group upward and setting a shielding cover outside the coating nozzle group, the spray can only be ejected from the rectangular spraying port. This can not only restrict the spraying area, but also prevent the overly sparse spray on the periphery from drifting. The spray blocked by the shielding cover will gradually gather and liquefy on the top plate and side plates, and finally drip into the waste liquid collection tank below, while the spray ejected from the spraying port will directly adhere to the upper fabric. At the same time, the air extraction cover can also extract air from the gap between the top plate and the fabric to further prevent the spray from spreading.

[0018] See Figure 2 , This embodiment also discloses a coating machine, including a feeding roller 10, a coating device, a drying device 20 and a winding roller 30. The coating device is the above-mentioned warp knitted fabric antibacterial coating device. Since the above-mentioned warp knitted fabric antibacterial coating device has the above technical effects, the coating machine with this coating device also has the same technical effects. At the same time, since the feeding roller, the drying device and the winding roller belong to the prior art, they will not be elaborated in this embodiment.

[0019] A slitting assembly 40 is also arranged between the drying device and the winding roller. The slitting assembly includes a bottom knife roller 41, a knife groove 42 arranged on the bottom knife roller, a cutting knife roller 43 and a slitting circular knife 44 arranged on the cutting knife roller. After the fabric is coated, waste edge areas that are not coated or coated unevenly are likely to exist in the two side areas of the fabric, and this part needs to be cut off. The slitting assembly can slit the coated fabric after drying online and cut off the waste edges on both sides.

[0020] The coater further includes a waste edge winding roller 50 and two winders 51 provided on the waste edge winding roller, which can wind and collect the cut waste edges.

[0021] It will be obvious to those skilled in the art that the present utility model can be changed in various ways, and such changes are not considered to depart from the scope of the present utility model. All such modifications obvious to those skilled in the art will be included within the scope of the present claims.

Claims

1. A warp knitted fabric antibacterial coating device, comprising a guide roller group and a coating spray head group, wherein the coating spray head group is connected with a glue pump and a paint tank, and is characterized in that: The guide roller group can guide the fabric to pass through the spraying area of the coating nozzle group in a horizontal state at a constant speed. The coating nozzle group includes a number of coating nozzles arranged in a line and vertically upward. The coating device further includes a shielding cover, which includes a top plate, side plates and a bottom plate. A rectangular spraying opening is formed in the middle area of the top plate. A nozzle installation opening is formed in the bottom plate, and the whole nozzle installation opening is within the projected area of the spraying opening. A waste liquid collection groove capable of collecting waste liquid is formed on the upper side of the bottom plate. The top plate is arranged for the fabric close to its upper side. A hollow air extraction cover is also arranged around the outer side of the side plates. The opening of the air extraction cover is vertically upward. The air extraction cover is connected with an air extraction pipe, and the end of the air extraction pipe is connected with an air extraction pump.

2. The warp knitting fabric antibacterial coating device according to claim 1, characterized in that: The edge of the nozzle installation opening is turned up. The waste liquid collection groove is connected with a waste liquid collection pipe, and the waste liquid collection pipe is connected with a waste liquid tank.

3. The warp knitted fabric antibacterial coating device according to claim 1 or 2, characterized in that: A filter element is arranged on the air extraction pipe.

4. A coating machine, comprising a feeding roller, a coating device, a drying device and a winding roller, characterized in that, The coating device is the warp knitted fabric antibacterial coating device according to any one of claims 1 to 3.

5. The coater according to claim 4, characterized in that: A slitting assembly is further arranged between the drying device and the winding roller. The slitting assembly includes a bottom knife roller, knife slots arranged on the bottom knife roller, a cutting knife roller and slitting circular knives arranged on the cutting knife roller.

6. The coater according to claim 5, characterized in that: It further includes a waste edge winding roller and two winding devices arranged on the waste edge winding roller.

Images