A polyester velvet fabric printing device and method

Abstract

The invention relates to the technical field related to textile printing, and discloses a polyester velvet fabric printing device and method. The velvet is pre-sizing and scraping, so that the velvet on the surface of the polyester velvet fabric is all tilted in the same direction, and the slurry on the outer surface of the velvet is scraped off before printing, and then the sizing and printing are repeated by reversing the direction. In this way, during the first printing, the dye can only adhere to the outer side of the velvet, and the other parts will not be printed with the dye under the protection of the slurry. During the second printing, the part of the velvet printed with a pattern is wrapped by the slurry, and the exposed part can be printed with a different pattern again. In this way, different directions of the velvet are printed with different patterns, so that a piece of velvet is printed with multiple different patterns, which is more ornamental than the traditional printing method.

Description

Technical Field

[0001] The invention relates to the technical field related to textile printing, and in particular to a polyester velvet fabric printing device and method. Background Art

[0002] Polyester velvet fabrics are widely used in the production of daily necessities such as clothing, bags, tents, curtains, etc. due to their good wrinkle resistance and shape retention. During the processing, the fabric needs to be printed. The printing process is the process of applying patterns on textiles with dyes or pigments.

[0003] Because the fluff on the surface of polyester velvet fabrics is dense, it is difficult for the dye to penetrate thoroughly, and the fluff can fall in different directions, which will also cause unclear patterns. Traditional velvet fabric printing can only print one pattern in the same place, which is relatively monotonous. Summary of the invention

[0004] The purpose of the present invention is to provide a polyester velvet fabric printing device and method to solve the problems raised in the above-mentioned background technology that the dye is difficult to be thoroughly immersed in the current traditional printing method, and the velvet can fall in different directions, which will also cause unclear patterns. Traditional velvet fabric printing can only print one pattern in the same place, which is relatively monotonous.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polyester velvet fabric printing device and method, comprising a fabric sizing machine, the fabric sizing machine is provided with a sizing pan, the bottom of the sizing pan is provided with a lifting mechanism, a sizing mechanism is provided above the sizing pan, the sizing mechanism is used to evenly apply sizing on the velvet, a sizing mechanism is provided behind the sizing mechanism, the sizing mechanism scrapes off excess sizing, a scraping mechanism is provided behind the scraping mechanism, the scraping mechanism is used to scrape off the velvet on the surface of the velvet The slurry scraping mechanism and the fluff scraping mechanism are both located in the slurry pan, a slurry drying furnace is arranged behind the slurry pan, and the slurry drying furnace is used to quickly dry the slurry, an inkjet printer is arranged behind the slurry drying furnace, and the inkjet printer is used to print patterns on the surface of the fluff cloth, a first roller is arranged at the front of the fabric sizing machine, a third motor is arranged at one end of the first roller, a second roller is arranged at the rear of the inkjet printer, and a fourth motor is arranged at one end of the second roller.

[0006] Furthermore, the lifting mechanism includes a lifting slider, which is fixedly connected under the slurry disk. The fabric sizing machine is fixedly connected to a first motor, and a trapezoidal screw is fixedly connected to the output shaft of the first motor. The trapezoidal screw is transmission-connected to the lifting slider through a thread.

[0007] Furthermore, a slurry reflux groove is provided in the middle of the slurry tray, and slurry recovery holes are provided on both sides of the bottom of the slurry reflux groove.

[0008] Furthermore, the slurry distribution mechanism includes a first connecting member, and the first connecting members are fixedly connected to both sides of the slurry disk by bolts, the first connecting member is rotatably connected to a first connecting rod, the first connecting rod is fixedly connected to a slurry distribution pipe, a slurry inlet is opened in the middle of the slurry distribution pipe, and slurry discharge outlets are densely opened on the right side of the slurry distribution pipe, a slurry distribution plate is fixedly connected to the bottom of the slurry distribution pipe, a first hydraulic rod is rotatably connected to the first connecting member, and the other end of the first hydraulic rod is rotatably connected to the slurry distribution pipe.

[0009] Furthermore, the scraping mechanism includes a second connecting member, and the second connecting members are fixedly connected to both sides of the slurry plate by bolts. The second connecting member is rotatably connected to a second connecting rod, and a rotating shaft is fixedly connected to the second connecting rod. A slurry scraper is fixedly connected below the rotating shaft. The second connecting member is also rotatably connected to a second hydraulic rod, and the other end of the second hydraulic rod is rotatably connected to the rotating shaft.

[0010] Furthermore, the scraping mechanism includes a second motor, which is fixedly installed on one side of the fabric sizing machine. The output end of the second motor is fixedly connected to a rotating rod, a fixed sleeve is welded on the rotating rod, a threaded rod passes through the fixed sleeve, the threaded rod is connected to the fixed sleeve through a thread, and the lower end of the threaded rod is fixedly connected to a scraping plate.

[0011] Furthermore, the first roller is wound with a first steel wire rope, one end of which is fixedly connected to a first flannel clamp, the second roller is wound with a second steel wire rope, one end of which is fixedly connected to a second flannel clamp, the first flannel clamp and the second flannel clamp are clamped at both ends of the flannel to tension the flannel.

[0012] Furthermore, the first flannel clamp includes a lower clamping plate, the lower clamping plate is fixedly connected to the first steel wire rope, an upper clamping plate is arranged above the lower clamping plate, the lower clamping plate is threadedly connected to a clevis bolt, the clevis bolt passes through the upper clamping plate, and the second flannel clamp has a similar structure to the first flannel clamp.

[0013] The present invention provides another technical solution: a polyester velvet fabric printing method, comprising the following steps:

[0014] S1. Clamping the flannel: align the direction of the flannel, then clamp one end of the flannel with the first flannel clamp, clamp the other end of the flannel with the second flannel clamp, and start the third motor and the fourth motor to drive the first roller and the second roller to rotate in opposite directions respectively to tighten the flannel;

[0015] S2. Slurry coating: The flannel is pulled and moved by the first roller and the second roller. When it moves to the top of the slurry tray, the first hydraulic rod in the slurry spreading mechanism starts to extend, pushing the slurry spreading pipe to rotate, so that the slurry spreading plate is pressed on the surface of the flannel. At the same time, slurry is injected through the slurry inlet, so that the slurry is sprayed out through the slurry spray outlet, and flows evenly downward along the slurry spreading plate to adhere to the surface of the flannel. Then the flannel continues to move to the bottom of the scraping mechanism, and the second hydraulic rod in the scraping mechanism starts to push the slurry scraper to rotate and press on the surface of the flannel, so as to flatten the slurry accumulated on the slurry scraper, and scrape the excess slurry into the slurry tray for recovery;

[0016] S3. Fluff scraping and combing: When the flannel moves to the bottom of the scraping mechanism, the second motor starts, driving the rotating rod to rotate, so that the scraping plate contacts the surface of the flannel, and then the threaded rod is rotated to adjust the height of the scraping plate to adjust the pressure of the scraping plate on the flannel, so that when the flannel moves, the scraping plate can scrape and comb the fluff on the surface of the flannel, so that all the fluffs fall in the same direction, and at the same time, the scraping plate further scrapes off the slurry on the surface of the fluff, so that the matrix on the upper side of the fluff is exposed;

[0017] S4. Drying: The flannel continues to move into the slurry drying furnace, and the slurry drying furnace starts heating to quickly dry the slurry on the flannel, so that the slurry solidifies quickly;

[0018] S5. Printing: When the flannel moves to the inkjet printer, the inkjet printer sprays dye onto the flannel to form a pattern;

[0019] S6. Desizing: Remove the printed flannel and immerse it in hot water to wash it, wash away the slurry and excess dye, and then dry the flannel to complete the printing of a pattern;

[0020] S7. Reversal printing: the flannel printed with one pattern is turned around, and the above-mentioned operations of S1-S6 are repeated to complete the printing of the second pattern.

[0021] Furthermore, the slurry has a formula of: sodium carboxymethyl cellulose: 5%-10%, polyvinyl alcohol: 10%-15%, acrylic resin: 5%-10%, silica sol: 2%-5%, cross-linking agent: 0.5%-1%, anti-dyeing agent: 1%-2%, catalyst: 0.1%-0.5%, and water: the balance.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention discloses a printing device and method for polyester velvet fabrics. The velvet cloth is pre-sizing and scraped so that the velvet on the surface of the polyester velvet fabric all falls in the same direction, and the slurry on the outer surface of the velvet is scraped off before printing, and then the sizing and printing are repeated by reversing the direction. In this way, during the first printing, the dye can only adhere to the outer side of the velvet, and the other parts will not be printed with dye under the protection of the slurry. During the second printing, the part of the velvet printed with a pattern is wrapped by the slurry, and the exposed part can be printed with a different pattern again without affecting the previous pattern. In this way, different patterns are printed on different directions of the velvet cloth. The pattern can be revealed by stroking the velvet cloth so that all the velvet falls in one direction, and different patterns can be revealed by stroking the velvet cloth in different directions so that the velvet falls in different directions. In this way, a piece of velvet cloth is printed with multiple different patterns, which is more ornamental than the traditional printing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the appearance structure of the printing device of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the fabric sizing machine of the present invention;

[0026] Figure 3 This is a schematic diagram of the slurry tray structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the slurry plate and the scraping mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 A in the middle shows the schematic diagram of the enlarged plate structure;

[0029] Figure 6 This is a schematic diagram of the structure of the first roller and the second roller of the present invention;

[0030] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0031] Figure 8 It is a schematic diagram of the scraping principle of the present invention.

[0032] Numbers in the figure: 1, fabric sizing machine; 2, slurry plate; 201, slurry return groove; 203, slurry recovery hole; 3, lifting mechanism; 301, lifting slider; 302, first motor; 303, trapezoidal screw rod; 4, slurry spreading mechanism; 401, first connecting piece; 402, first connecting rod; 403, slurry spreading pipe; 404, slurry inlet; 405, slurry outlet; 406, slurry spreading plate; 407, first hydraulic rod; 5, slurry scraping mechanism; 501, second connecting piece; 502, second connecting rod; 503, rotating shaft; 504, slurry Scraper; 505, second hydraulic rod; 6, scraping mechanism; 601, second motor; 602, rotating rod; 603, fixed sleeve; 604, threaded rod; 605, scraping plate; 7, slurry drying furnace; 8, inkjet printing machine; 9, first roller; 10, third motor; 11, second roller; 12, fourth motor; 13, first steel wire rope; 14, first flannel clamp; 1401, lower clamp; 1402, upper clamp; 1403, horn bolt; 15, second steel wire rope; 16, second flannel clamp; 17, fluff; 18, slurry protective layer. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0035] Combination Figure 1 - Figure 7 A polyester velvet fabric printing device includes a fabric sizing machine 1, a sizing plate 2 is provided on the fabric sizing machine 1, and a lifting mechanism 3 is provided at the bottom of the sizing plate 2. Figure 1 and Figure 2 As shown, the lifting mechanism 3 includes a lifting slider 301, which is fixedly connected to the bottom of the slurry disk 2. A first motor 302 is fixedly connected to the fabric sizing machine 1. A trapezoidal lead screw 303 is fixedly connected to the output shaft of the first motor 302. The trapezoidal lead screw 303 is connected to the lifting slider 301 through a thread. When the two groups of first motors 302 rotate at the same time, the lifting slider 301 can be driven to rise and fall through the thread transmission, and the lifting slider 301 can drive the slurry disk 2 to rise and fall for height adjustment.

[0036] like Figure 1 - Figure 5As shown, a slurry distributing mechanism 4 is arranged above the slurry disc 2, and the slurry distributing mechanism 4 is used to evenly apply slurry on the flannel. The slurry distributing mechanism 4 includes a first connecting member 401, and the first connecting members 401 are fixedly connected to the slurry disc 2 on both sides by bolts. A first connecting rod 402 is rotatably connected to the first connecting member 401, and a slurry distributing pipe 403 is fixedly connected to the first connecting rod 402. A slurry inlet 404 is provided in the middle of the slurry distributing pipe 403, and slurry spraying outlets 405 are densely provided on the right side of the slurry distributing pipe 403. A pulp distributing plate 406 is connected, and a first hydraulic rod 407 is rotatably connected to the first connecting member 401. The other end of the first hydraulic rod 407 is rotatably connected to the pulp distributing pipe 403. When the flannel moves above the slurry disk 2, the first hydraulic rod 407 in the pulp distributing mechanism 4 starts to extend, pushing the pulp distributing pipe 403 to rotate, so that the pulp distributing plate 406 is pressed against the surface of the flannel, and at the same time, the slurry is injected through the slurry inlet 404, so that the slurry is sprayed out through the slurry spray outlet 405, and flows downward evenly along the pulp distributing plate 406 and adheres to the surface of the flannel. A scraping mechanism 5 is arranged behind the slurry spreading mechanism 4, and the scraping mechanism 5 scrapes off excess slurry. The scraping mechanism 5 includes a second connecting member 501, and the second connecting members 501 are fixedly connected to the slurry tray 2 on both sides by bolts. The second connecting member 501 is rotatably connected to a second connecting rod 502, and a rotating shaft 503 is fixedly connected to the second connecting rod 502, and a slurry scraper 504 is fixedly connected below the rotating shaft 503. The second connecting member 501 is also rotatably connected to a second hydraulic rod 505, and the other end of the second hydraulic rod 505 is rotatably connected to the rotating shaft 503. When the flannel cloth moves to the bottom of the scraping mechanism 5, the second hydraulic rod 505 in the scraping mechanism 5 is started, and the slurry scraper 504 is pushed to rotate and press on the surface of the flannel cloth, so as to flatten the slurry accumulated on the slurry scraper, and scrape the excess slurry into the slurry tray 2 for recovery.

[0037] like Figure 1 - Figure 5 As shown, a scraping mechanism 6 is arranged behind the scraping mechanism 5, and the scraping mechanism 6 is used to scrape the fluff on the surface of the fluff cloth flat and scrape off the slurry attached to the fluff surface. The scraping mechanism 6 includes a second motor 601, and the second motor 601 is fixedly installed on one side of the fabric sizing machine 1. The output end of the second motor 601 is fixedly connected to a rotating rod 602, and a fixed sleeve 603 is welded on the rotating rod 602. A threaded rod 604 runs through the fixed sleeve 603, and the threaded rod 604 is connected to the fixed sleeve 603 by a thread. The fixed sleeve 603 is connected, and the lower end of the threaded rod 604 is fixedly connected with a scraping plate 605. When the flannel moves to the bottom of the scraping mechanism 6, the second motor 601 is started to drive the rotating rod 602 to rotate, so that the scraping plate 605 contacts the surface of the flannel, and then the threaded rod 604 is rotated to adjust the height of the scraping plate 605 to adjust the pressure of the scraping plate 605 on the flannel. The scraping plate 605 can be stacked with comb teeth and scrapers, so that the flannel can be combed and the pulp can be scraped off at the same time. Figure 8As shown, when the flannel cloth moves, the scraper board 605 can scrape and comb the fluff 17 on the surface of the flannel cloth, so that all the fluff 17 fall down in the same direction. At the same time, the scraper board 605 further scrapes off the slurry on the surface of the fluff 17, so that the matrix on the upper side of the fluff is exposed, and the other parts are protected by the slurry protection layer 18, so that the dye cannot be stained. During subsequent cleaning, the excess dye will be washed away together with the slurry.

[0038] The slurry scraping mechanism 5 and the velvet scraping mechanism 6 are both located at the slurry pan 2. A slurry drying furnace 7 is arranged behind the slurry pan 2 for quickly drying the slurry. An inkjet printer 8 is arranged behind the slurry drying furnace 7 for printing patterns on the surface of the velvet.

[0039] like Figure 6 and Figure 7 As shown, a first roller 9 is arranged at the front of the fabric sizing machine 1, and a third motor 10 is arranged at one end of the first roller 9. A second roller 11 is arranged at the rear of the inkjet printing machine 8, and a fourth motor 12 is arranged at one end of the second roller 11. The first roller 9 is wound with a first steel wire rope 13, and a first flannel clamp 14 is fixedly connected to one end of the first steel wire rope 13. The second roller 11 is wound with a second steel wire rope 15, and a second flannel clamp 16 is fixedly connected to one end of the second steel wire rope 15. The first flannel clamp 14 and the second flannel clamp 16 are wound with a second steel wire rope 15. Clamped at both ends of the flannel, and tensioned the flannel, the first flannel clamp 14 includes a lower clamp 1401, the lower clamp 1401 is fixedly connected to the first steel wire rope 13, an upper clamp 1402 is arranged above the lower clamp 1401, the lower clamp 1401 is threadedly connected with a clevis bolt 1403, the clevis bolt 1403 penetrates the upper clamp 1402, the second flannel clamp 16 has a similar structure to the first flannel clamp 14, so that the clevis bolt 1403 can be screwed to drive the upper clamp 1402 to descend and clamp the flannel. Then the third motor 10 and the fourth motor 12 rotate in the opposite direction, which can drive the first roller 9 and the second roller 11 to rotate in the opposite direction to tighten the first steel wire rope 13 and the second steel wire rope 15, and then tension the flannel, and the first roller 9 and the second roller 11 rotate in the same direction to drive the flannel to move.

[0040] Specifically, a slurry reflux groove 201 is provided in the middle of the slurry disk 2, and slurry recovery holes 203 are opened on both sides of the bottom of the slurry reflux groove 201, so that the excess slurry scraped off by the scraping mechanism 5 and the scraping mechanism 6 can flow back into the slurry reflux groove 201 and be recycled through the slurry recovery holes 203.

[0041] A polyester velvet fabric printing method comprises the following steps:

[0042] S1. Clamping the flannel: align the direction of the flannel, then clamp one end of the flannel with the first flannel clamp 14, clamp the other end of the flannel with the second flannel clamp 16, and start the third motor 10 and the fourth motor 12 to drive the first roller 9 and the second roller 11 to rotate in opposite directions, respectively, to tighten the flannel;

[0043] S2. Slurry coating: The flannel is pulled and moved by the first roller 9 and the second roller 11. When it moves to the top of the slurry pan 2, the first hydraulic rod 407 in the slurry spreading mechanism 4 starts to extend, pushing the slurry spreading tube 403 to rotate, so that the slurry spreading plate 406 is pressed on the surface of the flannel. At the same time, the slurry is injected through the slurry inlet 404, so that the slurry is sprayed out through the slurry spray port 405, and flows downward evenly along the slurry spreading plate 406 and adheres to the surface of the flannel. Then the flannel continues to move to the bottom of the scraping mechanism 5, and the second hydraulic rod 505 in the scraping mechanism 5 is started, pushing the slurry scraper 504 to rotate and press on the surface of the flannel, so as to flatten the slurry accumulated on the slurry scraper, and scrape the excess slurry into the slurry pan 2 for recovery;

[0044] S3. Fluff scraping and combing: When the flannel moves to the bottom of the scraping mechanism 6, the second motor 601 is started, driving the rotating rod 602 to rotate, so that the scraping plate 605 contacts the surface of the flannel, and then the threaded rod 604 is rotated to adjust the height of the scraping plate 605 to adjust the pressure of the scraping plate 605 on the flannel, so that when the flannel moves, the scraping plate 605 can scrape and comb the fluff on the surface of the flannel, so that all the fluff is lodged in the same direction, and at the same time, the scraping plate 605 further scrapes the slurry on the surface of the fluff, so that the substrate on the upper side of the fluff is exposed;

[0045] S4. Drying: The flannel continues to move to the slurry drying furnace 7, and the slurry drying furnace starts heating to quickly dry the slurry on the flannel so that the slurry quickly solidifies;

[0046] S5. Printing: When the flannel moves to the inkjet printer 8, the inkjet printer 8 sprays the dye onto the flannel to form a pattern;

[0047] S6. Desizing: Remove the printed flannel and immerse it in hot water to wash it, wash away the slurry and excess dye, and then dry the flannel to complete the printing of a pattern;

[0048] S7. Reversal printing: the flannel printed with one pattern is turned around, and the above-mentioned operations of S1-S6 are repeated to complete the printing of the second pattern.

[0049] Specifically, the slurry formula is:

[0050] Sodium carboxymethyl cellulose: 5%-10%;

[0051] Polyvinyl alcohol: 10%-15%;

[0052] Acrylic resin: 5%-10%;

[0053] Silica sol: 2%-5%;

[0054] Cross-linking agent: 0.5%-1%;

[0055] Anti-dyeing agent: 1%-2%;

[0056] Catalyst: 0.1%-0.5%;

[0057] Water: Balance.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyester fleece fabric printing device, comprising a fabric sizing machine (1), characterized in that: The fabric sizing machine (1) is provided with a slurry disk (2), a lifting mechanism (3) is provided at the bottom of the slurry disk (2), the lifting mechanism (3) comprises a lifting slider (301), the lifting slider (301) is fixedly connected below the slurry disk (2), the fabric sizing machine (1) is fixedly connected with a first motor (302), a trapezoidal lead screw (303) is fixedly connected to the output shaft of the first motor (302), and the trapezoidal lead screw (303) is transmission-connected to the lifting slider (301) via a thread; A slurry spreading mechanism (4) is arranged above the slurry disc (2), and the slurry spreading mechanism (4) is used to evenly spread slurry on the flannel. The slurry spreading mechanism (4) comprises a first connecting member (401), and the first connecting members (401) are fixedly connected to both sides of the slurry disc (2) by bolts. A first connecting rod (402) is rotatably connected to the first connecting member (401), and a slurry spreading pipe (403) is fixedly connected to the first connecting rod (402). A slurry inlet (404) is provided in the middle of the slurry spreading pipe (403), and slurry discharge outlets (405) are densely provided on the right side of the slurry spreading pipe (403). A slurry spreading plate (406) is fixedly connected below the slurry spreading pipe (403), and a first hydraulic rod (407) is rotatably connected to the first connecting member (401), and the other end of the first hydraulic rod (407) is rotatably connected to the slurry spreading pipe (403); A scraping mechanism (5) is arranged behind the slurry distributing mechanism (4), and the scraping mechanism (5) scrapes off excess slurry. The scraping mechanism (5) comprises a second connecting member (501), and the second connecting members (501) are fixedly connected to both sides of the slurry plate (2) by bolts. The second connecting member (501) is rotatably connected to a second connecting rod (502), and a rotating shaft (503) is fixedly connected to the second connecting rod (502). A slurry scraper (504) is fixedly connected below the rotating shaft (503). The second connecting member (501) is also rotatably connected to a second hydraulic rod (505), and the other end of the second hydraulic rod (505) is rotatably connected to the rotating shaft (503); A scraping mechanism (6) is arranged behind the scraping mechanism (5), and the scraping mechanism (6) is used to scrape the fluff on the surface of the fluff cloth flat and to scrape off the slurry attached to the fluff surface. The scraping mechanism (6) comprises a second motor (601), and the second motor (601) is fixedly mounted on one side of the fabric sizing machine (1). The output end of the second motor (601) is fixedly connected to a rotating rod (602), and a fixed sleeve (603) is welded to the rotating rod (602). A threaded rod (604) passes through the fixed sleeve (603), and the threaded rod (604) is connected to the fixed sleeve (603) by threads. The lower end of the threaded rod (604) is fixedly connected to a scraping plate (605); The scraping mechanism (5) and the scraping mechanism (6) are both located above the slurry pan (2); a slurry drying furnace (7) is arranged behind the slurry pan (2); the slurry drying furnace (7) is used to quickly dry the slurry; an inkjet printer (8) is arranged behind the slurry drying furnace (7); the inkjet printer (8) is used to print patterns on the surface of the velvet cloth; a first roller (9) is arranged at the front of the fabric sizing machine (1); a third motor (10) is arranged at one end of the first roller (9); the inkjet printer (8) is used to print patterns on the surface of the velvet cloth; ) is arranged at the rear of the second roller (11), a fourth motor (12) is arranged at one end of the second roller (11), the first roller (9) winds up a first steel wire rope (13), one end of the first steel wire rope (13) is fixedly connected to a first flannel clamp (14), the second roller (11) winds up a second steel wire rope (15), one end of the second steel wire rope (15) is fixedly connected to a second flannel clamp (16), the first flannel clamp (14) and the second flannel clamp (16) are clamped at both ends of the flannel to tighten the flannel.

2. A polyester velvet fabric printing device according to claim 1, characterized in that: A slurry reflux groove (201) is provided in the middle of the slurry tray (2), and slurry recovery holes (203) are provided on both sides of the bottom of the slurry reflux groove (201).

3. A polyester velvet fabric printing device according to claim 2, characterized in that: The scraper plate (605) is superimposed with comb teeth and a scraper.

4. A polyester velvet fabric printing device according to claim 3, characterized in that: The first flannel clamp (14) comprises a lower clamp (1401), the lower clamp (1401) is fixedly connected to the first steel wire rope (13), an upper clamp (1402) is arranged above the lower clamp (1401), the lower clamp (1401) is connected to a clevis bolt (1403) by means of a thread, the clevis bolt (1403) passes through the upper clamp (1402), and the second flannel clamp (16) and the first flannel clamp (14) are components made of the same structure.

5. The printing method of a polyester fleece fabric printing device according to claim 4, characterized in that: The following steps are involved: S1. Clamping the flannel: align the direction of the flannel, then use the first flannel clamp (14) to clamp one end of the flannel, use the second flannel clamp (16) to clamp the other end of the flannel, and start the third motor (10) and the fourth motor (12) to drive the first roller (9) and the second roller (11) to rotate in opposite directions respectively, so as to tighten the flannel; S2. Slurry coating: The flannel is pulled and moved by the first roller (9) and the second roller (11). When the flannel moves to the top of the slurry disk (2), the first hydraulic rod (407) in the slurry spreading mechanism (4) starts to extend, pushing the slurry spreading pipe (403) to rotate, so that the slurry spreading plate (406) is pressed against the surface of the flannel. At the same time, slurry is injected through the slurry inlet (404), so that the slurry is sprayed out through the slurry spray outlet (405), and flows downward evenly along the slurry spreading plate (406) and adheres to the surface of the flannel. Then, the flannel continues to move to the bottom of the slurry scraping mechanism (5), and the second hydraulic rod (505) in the slurry scraping mechanism (5) is started, pushing the slurry scraper (504) to rotate and press against the surface of the flannel, so that the slurry accumulated on the slurry scraper is flattened, and the excess slurry is scraped into the slurry disk (2) for recovery; S3. Scraping and combing the fluff: When the flannel moves to the bottom of the scraping mechanism (6), the second motor (601) is started, driving the rotating rod (602) to rotate, so that the scraping plate (605) contacts the surface of the flannel, and then the threaded rod (604) is rotated to adjust the height of the scraping plate (605) to adjust the pressure of the scraping plate (605) on the flannel. In this way, when the flannel moves, the scraping plate (605) can scrape and comb the fluff on the surface of the flannel, so that all the fluff falls in the same direction. At the same time, the scraping plate (605) further scrapes the slurry on the surface of the fluff, so that the substrate on the upper side of the fluff is exposed; S4. Drying: The flannel continues to move to the slurry drying furnace (7), and the slurry drying furnace starts heating to quickly dry the slurry on the flannel, so that the slurry quickly solidifies; S5. Printing: When the flannel moves to the inkjet printing machine (8), the inkjet printing machine (8) sprays the dye onto the flannel to form a pattern; S6. Desizing: Remove the printed flannel and immerse it in hot water to wash it, wash away the slurry and excess dye, and then dry the flannel to complete the printing of a pattern; S7. Reversal printing: the flannel printed with one pattern is turned around, and the above-mentioned operations of S1-S6 are repeated to complete the printing of the second pattern.

6. The printing method of a polyester fleece fabric printing device according to claim 5, characterized in that: The slurry has a formula of: sodium carboxymethyl cellulose: 5%-10%, polyvinyl alcohol: 10%-15%, acrylic resin: 5%-10%, silica sol: 2%-5%, cross-linking agent: 0.5%-1%, anti-dyeing agent: 1%-2%, catalyst: 0.1%-0.5%, and water: the balance.

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