An apparatus for coating a web of material

Abstract

The utility model provides a kind of scraper type fabric coating device, comprising: a pair of roll bar is arranged in casing, scraper device is arranged in the upper side space between two roll bars, scraper device is detachably fixed with casing top surface, drip liquid pipeline is arranged in the front side of scraper device;Bottom lining is arranged in the working end of scraper device, and gasket is arranged between bottom lining and the inner bottom surface of casing.

Description

Technical Field

[0001] This utility model relates to the field of fabric manufacturing, specifically to a fabric coating device. Background Technology

[0002] Mattresses, as bedding products, generally require waterproofing. There are typically two ways to achieve this: one is to use waterproof fabric directly, and the other is to spray a waterproof coating onto the mattress surface. Waterproof fabrics are usually made by adding a hydrophobic coating to ordinary fabric. Traditional roller coating devices sometimes produce uneven coating results, requiring a scraper to remove excess coating. Therefore, a coating device that uses a scraper to directly replace the roller can be designed to streamline the production process. Summary of the Invention

[0003] This invention addresses the problem that existing fabric coating devices typically employ a roller coating method, where the coating thickness depends on the roller pressure. While this method is effective for thin coatings due to the high pressure, it can lead to uneven coating thickness when producing thicker coatings because the roller pressure cannot be accurately adjusted. Therefore, a fabric coating device using a scraper is needed that can be applied to various coating thicknesses.

[0004] A scraper-type fabric coating device includes: a pair of rollers arranged inside a housing; a scraper device arranged in the upper space between the two rollers; the scraper device being detachably fixed to the top surface of the housing; a dripping pipe arranged in front of the scraper device; a bottom liner plate arranged at the working end of the scraper device; and a pad plate arranged between the bottom liner plate and the bottom surface of the housing.

[0005] The scraper device includes: an upper fixed part and a lower movable part;

[0006] The upper fixed part is detachably fixed to the top surface of the casing;

[0007] The lower movable part includes: a cover plate fixed to the lower end of the upper fixed part;

[0008] The cover plate includes a front vertical plate, a top fixing plate, and a rear positioning plate, wherein a scraper is hinged to the bottom surface of the top fixing plate;

[0009] A spring and a positioning rod are fixed on the surface of the scraper; the spring is sleeved on the positioning rod.

[0010] The second end of the spring is located inside the rear positioning plate, and the positioning rod penetrates the rear positioning plate.

[0011] Preferably, the upper fixing part includes: a positioning horizontal shaft, which has at least two screw holes and protruding shafts at both ends;

[0012] A pair of bearing seats are provided on the top of the housing, and the bearing seats cooperate with the shaft of the positioning horizontal shaft;

[0013] An adjusting bolt is installed inside the screw hole, and the bottom end of the adjusting bolt is hinged to the top fixing plate.

[0014] The scraper-type fabric coating device of this application is used as follows: different scraper device angles are selected according to the chosen coating thickness. The bearing seat is usually a split type, using an upper and lower clamping method to fix the positioning horizontal shaft; if necessary, axial screws can be used for auxiliary fixation. During installation, the selected angle is determined by directly rotating the positioning horizontal shaft.

[0015] After selecting the angle of the scraper device, a pad and a bottom liner are set so that the bottom liner and the scraper flange of the scraper device abut against each other, and the front vertical plate is kept parallel to the scraper surface when abutting.

[0016] Finally, the fabric and coating liquid are applied, evenly distributed onto the fabric through a drip channel, and then spread evenly using a squeegee. Excess liquid drips down the edges of the squeegee into the machine casing for recycling or disposal. Controlling the drip flow rate prevents excessive waste liquid.

[0017] Preferably, the rear positioning plate forms a 20° angle with the vertical profile.

[0018] Preferably, the bottom end of the front vertical plate is provided with a flange for positioning the front side of the scraper; the bottom end of the scraper is provided with a flange to keep the scraper edge smooth. The beneficial effects of this utility model are: it uses a scraper-type coating method instead of the traditional roller-type coating method, reducing the step of removing excess coating with a secondary scraper required by the roller-type coating method; and it improves the situation where local unevenness is easily generated when the roller is used to apply thick coatings. Attached Figure Description

[0019] Figure 1 Device assembly diagram of this utility model

[0020] Figure 2 Schematic diagram of the scraper device;

[0021] Figure 3 Schematic diagram of the upper fixed part of the scraper device;

[0022] In the diagram: 1. Roller, 2. Pad, 3. Drip pipe, 4. Scraper device, 41. Positioning horizontal shaft, 42. Adjusting bolt, 43. Spring, 44. Scraper, 45. Shaft seat. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the scraper-type fabric coating device includes: a pair of rollers 1 are provided inside the machine housing; a scraper device is provided in the upper space between the two rollers; the scraper device is detachably fixed to the top surface of the machine housing; a dripping pipe 3 is provided in front of the scraper device 4; a bottom liner is provided at the working end of the scraper device; and a pad 2 is provided between the bottom liner and the bottom surface of the machine housing.

[0025] The scraper device 4 includes: an upper fixed part and a lower movable part;

[0026] The upper fixed part is detachably fixed to the top surface of the casing;

[0027] The lower movable part includes: a cover plate fixed to the lower end of the upper fixed part;

[0028] The cover plate includes a front vertical plate, a top fixing plate, and a rear positioning plate, wherein a scraper 44 is hinged to the bottom surface of the top fixing plate;

[0029] Spring 43 and positioning rod are fixed on the scraper plate surface; the spring is sleeved on the positioning rod;

[0030] The second end of the spring is located inside the rear positioning plate, and the positioning rod penetrates the rear positioning plate.

[0031] The upper fixed part includes: a positioning horizontal shaft 41, which has at least two screw holes and protruding shafts at both ends;

[0032] A pair of bearing seats are provided on the top of the housing, and the bearing seat 45 cooperates with the shaft of the positioning horizontal shaft;

[0033] An adjusting bolt is installed inside the screw hole, and the bottom end of the adjusting bolt 42 is hinged to the top fixing plate.

[0034] The scraper-type fabric coating device of this application is used as follows: different scraper device angles are selected according to the chosen coating thickness. The bearing seat is usually a split type, using an upper and lower clamping method to fix the positioning horizontal shaft; if necessary, axial screws can be used for auxiliary fixation. During installation, the selected angle is determined by directly rotating the positioning horizontal shaft.

[0035] After selecting the angle of the scraper device, a pad and a bottom liner are set so that the bottom liner and the scraper flange of the scraper device abut against each other, and the front vertical plate is kept parallel to the scraper surface when abutting.

[0036] Finally, input the fabric and layer liquid, distribute it evenly on the fabric through the drip pipe, and apply it evenly with a squeegee.

[0037] The rear positioning plate forms a 20° angle with the vertical profile.

[0038] The bottom of the front vertical plate is provided with a flange for positioning the front side of the scraper; the bottom of the scraper is provided with a flange to keep the scraper edge smooth.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A scraper-type fabric coating device, characterized in that, include: A pair of rollers are installed inside the casing, and a scraper device is installed in the upper space between the two rollers. The scraper device is detachably fixed to the top surface of the casing. A dripping pipe is installed in front of the scraper device. A bottom liner is installed at the working end of the scraper device, and a pad is installed between the bottom liner and the bottom surface of the casing. The scraper device includes: an upper fixed part and a lower movable part; The upper fixed part is detachably fixed to the top surface of the casing; The lower movable part includes: a cover plate fixed to the lower end of the upper fixed part; The cover plate includes a front vertical plate, a top fixing plate, and a rear positioning plate, wherein a scraper is hinged to the bottom surface of the top fixing plate; A spring and a positioning rod are fixed on the surface of the scraper; the spring is sleeved on the positioning rod. The second end of the spring is located inside the rear positioning plate, and the positioning rod penetrates the rear positioning plate.

2. The scraper-type fabric coating device according to claim 1, characterized in that, The upper fixed part includes: a positioning horizontal shaft, which has at least two screw holes and protruding shafts at both ends; A pair of bearing seats are provided on the top of the housing, and the bearing seats cooperate with the shaft of the positioning horizontal shaft; An adjusting bolt is installed inside the screw hole, and the bottom end of the adjusting bolt is hinged to the top fixing plate.

3. A scraper-type fabric coating device according to claim 1 or 2, characterized in that, The rear positioning plate forms a 20° angle with the vertical profile.

4. The scraper-type fabric coating device according to claim 3, characterized in that, The bottom of the front vertical plate is provided with a flange for positioning the front side of the scraper; The scraper has a flange at the bottom to keep the scraper edge smooth.

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