Environment-friendly spraying, printing and dyeing device for textile fabric

Abstract

The invention belongs to the technical field of fabric printing and dyeing, and particularly relates to a textile fabric environment-friendly spraying printing and dyeing device which comprises a base and further comprises a conveying processing mechanism, a fabric compactness detection mechanism, a fabric compactness feedback regulation and control mechanism, a spraying angle self-adjusting mechanism, a drying mechanism and a PLC. According to the device, before the printing and dyeing fabric is sprayed, the compactness of the printing and dyeing fabric can be automatically detected, the spraying angle can be automatically adjusted and controlled based on the compactness of the printing and dyeing fabric, and the larger the compactness of the printing and dyeing fabric is, the closer the spraying angle is vertical; by means of the device, dye can better vertically enter fiber gaps of the fabric through the gravity of the dye, the spraying pressure can be automatically adjusted and controlled based on the compactness of the printed and dyed fabric, the larger the compactness of the printed and dyed fabric is, the larger the spraying pressure is, and the drying wind power can be automatically adjusted and controlled based on the compactness of the printed and dyed fabric; the larger the compactness of the printed and dyed fabric is, the larger the drying wind power is.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric printing and dyeing, and in particular relates to an environmentally friendly spray printing and dyeing device for textile fabrics. Background Art

[0002] The environmentally friendly spray printing and dyeing device for textile fabrics is a device that can dye textile fabrics by spraying. Its working principle is mainly to absorb the dye through a delivery pump and send the dye into the spray component, so that the dye is attached to the textile fabric by spraying. For example, the patent with patent announcement number CN118653269B proposes an environmentally friendly spray printing and dyeing device for textile fabrics.

[0003] In the actual spray printing and dyeing process, the spraying angle is fixed, but the type of fabric is not fixed. For tight fabrics (such as high-count cotton, tightly woven silk, etc.), the gaps between fibers are small, and it is difficult for dyes to penetrate. When the spray angle is close to vertical (such as 85°-90°), the dye can use its own gravity to vertically enter the fiber gaps, reducing the lateral flow on the fabric surface. If the spray angle is too inclined, the lateral force of the dye on the fabric surface will increase, which will easily cause the dye to accumulate on the fabric surface and be difficult to effectively penetrate into the tight fibers. If the spray angle is inclined, for example, 60° to the fabric plane, the dye will flow more on the fabric surface and it will be difficult to penetrate into the fibers, which will cause the surface color of the fabric to be darker, while the internal color will be lighter, and the dyeing will be uneven.

[0004] On the contrary, loose fabrics (such as knitted fabrics, woolen fabrics, etc.) have larger pores between fibers, and dyes are relatively easy to penetrate. In this case, the spray angle can have a certain inclination (such as 70°-80°). The inclined spray angle helps the dye to spread better on the fabric surface and cover a wider area, so that the dye can make full use of the loose structure of the fabric and penetrate evenly between the fibers. If a vertical spray angle is used at this time, the dye will quickly pass through the pores of the fabric under the action of gravity, which will not only waste the dye, but also make the dyeing effects on the front and back of the fabric inconsistent, with the front color being light and the back color being dark. Therefore, the current printing and dyeing process using a fixed spray angle obviously cannot well meet the printing and dyeing needs of fabrics of different tightness. Summary of the invention

[0005] The purpose of the present invention is to provide an environmentally friendly spraying and dyeing device for textile fabrics in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an environmentally friendly spraying and dyeing device for textile fabrics, comprising a base, and also comprising:

[0007] A transmission and processing mechanism is fixedly mounted on the upper end of the base;

[0008] A fabric tightness detection mechanism is fixedly mounted on the inner front side of the transmission and processing mechanism;

[0009] A fabric tightness feedback control mechanism is fixedly mounted on the fabric tightness detection mechanism and is connected to the fabric tightness detection mechanism;

[0010] A spraying angle self-adjusting mechanism is fixedly mounted on the top of the transmission and processing mechanism, a spraying head is mounted at the output end of the spraying angle self-adjusting mechanism, and an electromagnetic pressure regulating valve is mounted at the end of the spraying head;

[0011] A drying mechanism, fixedly mounted on the top of the transmission and processing mechanism and located at the rear side of the spraying angle self-adjusting mechanism;

[0012] The PLC controller is fixedly mounted on the upper end of the base and is electrically connected to the transmission processing mechanism, the fabric tightness detection mechanism, the fabric tightness feedback control mechanism, the spraying angle self-adjusting mechanism and the drying mechanism respectively.

[0013] In the above-mentioned environmentally friendly spray printing and dyeing device for textile fabrics, the transmission and processing mechanism includes an unwinder and a reel symmetrically fixedly mounted on the upper end of the base, and the same printed and dyed fabric is wound on the unwinder and the reel. A processing shell located between the unwinder and the reel is also fixedly mounted on the upper end of the base, and material passage openings for the printed and dyed fabric to pass through are provided on opposite sides of the processing shell.

[0014] In the above-mentioned environmentally friendly spray printing and dyeing device for textile fabrics, the fabric tightness detection mechanism includes an L-shaped vertical plate fixedly installed at the bottom of the inner wall of the processing shell, a horizontal plate is fixedly installed on the lower end side wall of the L-shaped vertical plate, the lower end of the horizontal part of the L-shaped vertical plate and the upper end of the horizontal plate are rotatably connected with a bidirectional screw, the upper end of the L-shaped vertical plate is fixedly installed with a servo motor for driving the bidirectional screw to rotate, the servo motor and the bidirectional screw are connected together by a torsion connection mechanism, the rod wall of the bidirectional screw is symmetrically threaded with a sealing shell and a ventilation frame arranged upper and lower, a supporting mesh plate is fixedly installed on the top of the inner wall of the ventilation frame, an air pump is fixedly installed on the upper end of the L-shaped vertical plate, and the air outlet of the air pump is fixedly connected with an air supply pipe, the lower end of the air supply pipe is connected to the sealing shell, and the air supply pipe is an elastic telescopic pipe.

[0015] In the above-mentioned textile fabric environmentally friendly spray printing and dyeing device, the fabric tightness feedback control mechanism includes a pressure shell and a feedback shell fixedly installed on the outer wall of the sealing shell, the front end of the pressure shell and the sealing shell are connected by a pressure pipe, the internal sealing sleeve of the pressure shell is provided with a pressure piston, the rear side of the pressure piston is fixedly connected with a transmission rack, the end of the transmission rack away from the pressure piston penetrates and extends out of the pressure shell, the pressure piston and the pressure shell are fixedly connected on the opposite side with a pressure spring sleeved on the outside of the transmission rack, the feedback shell is rotatably connected with a linkage screw, the upper end of the feedback shell is fixedly installed with a speed increasing gear box, the upper input end of the speed increasing gear box is fixedly connected with a transmission gear meshing with the transmission rack, the lower output end of the speed increasing gear box is transmission-connected with the linkage screw through a bevel gear assembly, the rod wall of the linkage screw is threadedly sleeved with a feedback seat, the feedback shell is fixedly installed with a feedback resistor rod arranged parallel to the linkage screw, and the lower end of the feedback seat is fixedly installed with a feedback conductive contact electrically in contact with the feedback resistor rod.

[0016] In the above-mentioned environmentally friendly spraying and dyeing device for textile fabrics, the spraying angle self-adjusting mechanism includes a cover shell fixedly mounted on the upper end of the processing shell, one side of the inner side of the cover shell is rotatably connected with a vertically arranged adjusting screw, an adjusting motor for driving the adjusting screw to rotate is fixedly mounted on the upper end of the cover shell, an adjusting plate is threadedly sleeved on the rod wall of the adjusting screw, a plurality of lifting rods are fixedly connected to the lower end of the adjusting plate, the lower ends of the plurality of lifting rods extend through the processing shell, and are fixedly connected with the same U-shaped lifting plate, the U-shaped lifting plate is rotatably connected to the outer wall of the upper end of the spray head through a rotating shaft, and one end of the rotating shaft extends through the U shaped lifting plate, and is fixedly connected with an adjusting gear, an adjusting rack meshing with the adjusting gear is fixedly installed on the top of the inner wall of the processing shell, a plurality of positioning slide bars arranged side by side are fixedly installed on the other side of the inner wall of the cover shell, and the same movable plate is slidably sleeved on the outside of the plurality of positioning slide bars, a plurality of squeezing springs sleeved on the outside of the positioning slide bars are fixedly installed on the upper end of the movable plate and the top of the inner wall of the cover shell, a thrust permanent magnet plate is fixedly installed on the lower end of the movable plate, a thrust electromagnetic plate arranged opposite to the thrust permanent magnet plate is fixedly installed on the bottom of the inner wall of the cover shell, and a pressure confirmation switch located on the upper side of the adjusting plate is also fixedly installed on one side of the lower end of the movable plate.

[0017] In the above-mentioned environmentally friendly spraying and dyeing device for textile fabrics, the drying mechanism includes a drying plate fixedly mounted on the top of the inner wall of the processing shell, a plurality of drying heads are evenly and fixedly connected to the lower end of the drying plate, a drying pipe is fixedly connected to the upper end of the drying plate, a hot air blower is mounted on the drying pipe, and the hot air blower is fixedly mounted on the upper end of the processing shell.

[0018] In the above-mentioned environmentally friendly spray printing and dyeing device for textile fabrics, the torsion connection mechanism includes a transmission plate fixedly sleeved on the upper end rod wall of the bidirectional screw, the lower end output end of the servo motor is fixedly connected with a rotating plate, the rotating plate is rotatably sleeved on the upper end rod wall of the bidirectional screw, a torsion spring sleeved on the outside of the bidirectional screw is fixedly connected between the rotating plate and the transmission plate, an in-place switch is fixedly installed on one side wall of the transmission plate, the side wall of the rotating plate is fixedly connected with an L-shaped extension plate, and the lower end side wall of the L-shaped extension plate is fixedly connected with a pressing bump arranged corresponding to the position of the in-place switch.

[0019] In the above-mentioned environmentally friendly spray printing and dyeing device for textile fabrics, two limiting sliding rods are symmetrically fixedly connected on the opposite sides of the L-shaped vertical plate and the horizontal plate, and the outer walls of the sealing shell and the ventilation frame are provided with limiting sliding holes that are slidably connected to the limiting sliding rods.

[0020] In the above-mentioned environmentally friendly spraying and dyeing device for textile fabrics, the sealing shell and the ventilation frame are integrally connected with an outwardly expanding sealing plate at the opposite ends.

[0021] In the above-mentioned environmentally friendly spraying and dyeing device for textile fabrics, the inner wall of the processing shell corresponding to the material passage opening is set as an arc structure.

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

[0023] 1. Through the transmission and processing mechanism, fabric tightness detection mechanism, fabric tightness feedback control mechanism, and spraying angle self-adjusting mechanism, the tightness of the printed and dyed fabric can be automatically detected before spraying the printed and dyed fabric, and the spraying angle can be automatically adjusted based on the tightness of the printed and dyed fabric. The tighter the printed and dyed fabric, the closer the spraying angle is to vertical, so that the dye can better use its own gravity to vertically enter the fiber gap of the fabric, reduce the lateral flow of the dye on the fabric surface, avoid the spraying angle is too inclined, so that the lateral force of the dye on the fabric surface will increase, which will lead to the problem of dye accumulation on the fabric surface, and difficult to effectively penetrate into the tight fiber inside, effectively improving the quality of spray printing and dyeing.

[0024] 2. Through the spray head, electromagnetic pressure regulating valve, fabric tightness feedback control mechanism and PLC controller, the spray pressure can be automatically regulated based on the tightness of the printed and dyed fabric. The tighter the printed and dyed fabric, the greater the spray pressure, because the tighter the fabric, the more difficult it is for the dye to penetrate. A higher spray pressure can effectively ensure that the dye fully enters the fabric fiber.

[0025] 3. Through the drying mechanism and fabric tightness feedback control mechanism, the drying wind force can be automatically regulated based on the tightness of the printed and dyed fabrics. The tighter the printed and dyed fabrics, the greater the drying wind force. This is because for tight fabrics, it is difficult for the internal moisture to diffuse. Only when the moisture on the surface of the fabric evaporates quickly can a larger humidity gradient be formed between the inside and the surface of the fabric. A larger humidity gradient can promote the diffusion of moisture from the inside of the fabric to the surface. Therefore, a larger wind force is needed to quickly reduce the humidity on the surface of the fabric, creating favorable conditions for the moisture to diffuse from the inside to the surface and evaporate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 It is a front view cross-sectional structural schematic diagram of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the fabric tightness detection mechanism of the present invention;

[0029] Figure 4 It is a side cross-sectional structural schematic diagram of the fabric tightness feedback control mechanism of the present invention;

[0030] Figure 5 It is a schematic cross-sectional view of the spray angle self-adjusting mechanism of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the drying mechanism of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the torque connection mechanism of the present invention.

[0033] In the figure: 1 base, 2 transmission processing mechanism, 21 unwinder, 22 winder, 23 printing and dyeing fabric, 24 processing shell, 25 material outlet, 3 fabric tightness detection mechanism, 31 L-shaped vertical plate, 32 horizontal plate, 33 bidirectional screw, 34 servo motor, 35 sealing shell, 36 ventilation frame, 37 support mesh plate, 38 air pump, 39 air supply pipe, 310 limit slide bar, 4 fabric tightness feedback control mechanism, 41 pressure shell, 42 feedback shell, 43 pressure pipe, 44 pressure piston, 45 transmission rack, 46 pressure spring, 47 linkage screw, 48 speed increasing gear box, 49 transmission gear, 410 bevel gear assembly, 411 feedback seat, 412 feedback resistor rod, 413 feedback conductive rod Connector, 5 spray angle self-adjusting mechanism, 51 cover, 52 adjusting screw, 53 adjusting motor, 54 adjusting plate, 55 lifting rod, 56 U-shaped lifting plate, 57 rotating shaft, 58 adjusting gear, 59 adjusting rack, 510 positioning slide bar, 511 moving plate, 512 squeezing spring, 513 thrust permanent magnet plate, 514 thrust electromagnetic plate, 515 pressure confirmation switch, 6 drying mechanism, 61 drying plate, 62 drying head, 63 drying tube, 64 air blower, 7 torque connection mechanism, 71 transmission plate, 72 rotating plate, 73 torsion spring, 74 in-place switch, 75 L-shaped extension plate, 76 pressing bump, 8 PLC controller, 9 spray head, 10 electromagnetic pressure regulating valve. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] like Figure 1-Figure 7 As shown, an environmentally friendly spraying and dyeing device for textile fabrics includes a base 1 and also includes:

[0036] The transmission and processing mechanism 2 is fixedly mounted on the upper end of the base 1. The transmission and processing mechanism 2 includes an unwinder 21 and a reel 22 symmetrically fixedly mounted on the upper end of the base 1. The unwinder 21 and the reel 22 are wound with the same printed and dyed fabric 23. A processing shell 24 located between the unwinder 21 and the reel 22 is also fixedly mounted on the upper end of the base 1. The processing shell 24 is provided with a material passage 25 on opposite sides thereof for the printed and dyed fabric 23 to pass through. The inner wall of the processing shell 24 corresponding to the material passage 25 is set as an arc structure.

[0037] The fabric tightness detection mechanism 3 is fixedly installed on the inner front side of the transmission processing mechanism 2. The fabric tightness detection mechanism 3 includes an L-shaped vertical plate 31 fixedly installed on the bottom of the inner wall of the processing shell 24. The lower end side wall of the L-shaped vertical plate 31 is fixedly installed with a horizontal plate 32. The lower end of the horizontal part of the L-shaped vertical plate 31 and the upper end of the horizontal plate 32 are rotatably connected with a bidirectional screw 33. The upper end of the L-shaped vertical plate 31 is fixedly installed with a servo motor 34 for driving the bidirectional screw 33 to rotate. The servo motor 34 and the bidirectional screw 33 are connected together through a torsion connection mechanism 7. The rod wall of the bidirectional screw 33 is symmetrically threaded with upper and lower devices. A sealing shell 35 and a ventilation frame 36 are arranged, and the sealing shell 35 and the ventilation frame 36 are integrally connected with an outward-expanding sealing plate at one end facing each other. A supporting mesh plate 37 is fixedly installed on the top of the inner wall of the ventilation frame 36. An air pump 38 is fixedly installed on the upper end of the L-shaped vertical plate 31. The air outlet of the air pump 38 is fixedly connected with an air supply pipe 39. The lower end of the air supply pipe 39 is connected to the sealing shell 35. The air supply pipe 39 is an elastic telescopic tube. Two limit sliding rods 310 are symmetrically fixedly connected to the opposite side of the L-shaped vertical plate 31 and the horizontal plate 32. The outer walls of the sealing shell 35 and the ventilation frame 36 are provided with limit sliding holes that are slidably sleeved with the limit sliding rods 310.

[0038] The torsion connection mechanism 7 includes a transmission plate 71 fixedly sleeved on the upper end rod wall of the bidirectional screw 33, and the lower end output end of the servo motor 34 is fixedly connected with a rotating plate 72, and the rotating plate 72 is rotatably sleeved on the upper end rod wall of the bidirectional screw 33. A torsion spring 73 sleeved on the outside of the bidirectional screw 33 is fixedly connected between the rotating plate 72 and the transmission plate 71, and an in-position switch 74 is fixedly installed on one side wall of the transmission plate 71, and an L-shaped extension plate 75 is fixedly connected to the side wall of the rotating plate 72, and a pressing protrusion 76 corresponding to the position of the in-position switch 74 is fixedly connected to the lower end side wall of the L-shaped extension plate 75.

[0039] The fabric tightness feedback control mechanism 4 is fixedly mounted on the fabric tightness detection mechanism 3 and is connected to the fabric tightness detection mechanism 3. The fabric tightness feedback control mechanism 4 includes a pressure shell 41 and a feedback shell 42 fixedly mounted on the outer wall of the sealing shell 35. The front end of the pressure shell 41 is connected to the sealing shell 35 through a pressure pipe 43. The internal sealing sleeve of the pressure shell 41 is provided with a pressure piston 44. The rear side of the pressure piston 44 is fixedly connected to a transmission rack 45. The end of the transmission rack 45 away from the pressure piston 44 extends through the pressure shell 41. The pressure piston 44 and the pressure shell 41 are fixedly connected on the opposite side to each other. 5, the feedback shell 42 is internally rotatably connected with a linkage screw 47, the upper end of the feedback shell 42 is fixedly provided with a speed increasing gear box 48, the upper input end of the speed increasing gear box 48 is fixedly connected with a transmission gear 49 meshing with the transmission rack 45, the lower output end of the speed increasing gear box 48 is transmission connected with the linkage screw 47 through a bevel gear assembly 410, the rod wall of the linkage screw 47 is threadedly sleeved with a feedback seat 411, the feedback shell 42 is internally fixedly provided with a feedback resistor rod 412 arranged parallel to the linkage screw 47, and the lower end of the feedback seat 411 is fixedly provided with a feedback conductive contact piece 413 in electrical contact with the feedback resistor rod 412.

[0040] The spraying angle self-adjusting mechanism 5 is fixedly mounted on the top of the transmission processing mechanism 2. A spraying head 9 is mounted on the output end of the spraying angle self-adjusting mechanism 5. An electromagnetic pressure regulating valve 10 is mounted on the end of the spraying head 9. The spraying angle self-adjusting mechanism 5 includes a cover shell 51 fixedly mounted on the upper end of the processing shell 24. A vertically arranged adjusting screw 52 is rotatably connected to one side of the inner part of the cover shell 51. An adjusting motor 53 for driving the adjusting screw 52 to rotate is fixedly mounted on the upper end of the cover shell 51. An adjusting plate 54 is threadedly sleeved on the rod wall of the adjusting screw 52. A plurality of lifting rods 55 are fixedly connected to the lower end of the adjusting plate 54. The lower ends of the plurality of lifting rods 55 extend through the processing shell 24 and are fixedly connected to the same U-shaped lifting plate 56. The U-shaped lifting plate 56 is rotatably connected to the outer wall of the upper end of the spraying head 9 through a rotating shaft 57. One end of the rotating shaft 57 passes through and extends out of the U-shaped lifting plate 56, and is fixedly connected with an adjusting gear 58. An adjusting rack 59 meshing with the adjusting gear 58 is fixedly installed on the top of the inner wall of the processing shell 24. A plurality of positioning slide bars 510 arranged side by side are fixedly installed on the other side of the inner wall of the cover shell 51. The plurality of positioning slide bars 510 are slidably sleeved with the same moving plate 511 outside. A plurality of squeezing springs 512 sleeved on the outside of the positioning slide bars 510 are fixedly installed on the upper end of the moving plate 511 and the top of the inner wall of the cover shell 51. A thrust permanent magnet plate 513 is fixedly installed on the lower end of the moving plate 511. A thrust electromagnetic plate 514 arranged opposite to the thrust permanent magnet plate 513 is fixedly installed on the bottom of the inner wall of the cover shell 51. A pressure confirmation switch 515 located on the upper side of the adjusting plate 54 is also fixedly installed on one side of the lower end of the moving plate 511.

[0041] The drying mechanism 6 is fixedly mounted on the top of the transmission and processing mechanism 2 and is located on the rear side of the spray angle self-adjusting mechanism 5. The drying mechanism 6 includes a drying plate 61 fixedly mounted on the top of the inner wall of the processing shell 24. The lower end of the drying plate 61 is evenly and fixedly connected to a plurality of drying heads 62. The upper end of the drying plate 61 is fixedly connected to a drying pipe 63. A blower hot air blower 64 is installed on the drying pipe 63. The blower hot air blower 64 is fixedly mounted on the upper end of the processing shell 24.

[0042] The PLC controller 8 is fixedly mounted on the upper end of the base 1 and is electrically connected to the transmission and processing mechanism 2, the fabric tightness detection mechanism 3, the fabric tightness feedback control mechanism 4, the spraying angle self-adjusting mechanism 5 and the drying mechanism 6 respectively.

[0043] The operating principle of the present invention is described as follows: the printed and dyed fabric 23 is transported and moved in the state where the unwinder 21 and the winder 22 cooperate, and the printed and dyed fabric 23 moves in the processing shell 24 through the material passage 25. Before spraying and dyeing, the unwinder 21 and the winder 22 are first controlled to stop, and the PLC controller 8 controls the servo motor 34 to operate. The servo motor 34 drives the bidirectional screw 33 to rotate by itself through the connection action of the torsion spring 73. The bidirectional screw 33 and the sealing shell 35 and the ventilation frame 36 are threadedly connected to each other, so that the sealing shell 35 and the ventilation frame 36 move toward each other and contact and press against the upper and lower sides of the printed and dyed fabric 23, and as the servo motor 34 is connected, the sealing shell 35 and the ventilation frame 36 move toward each other and contact and press against the upper and lower sides of the printed and dyed fabric 23. The servo motor 34 drives the rotating plate 72 to continue rotating. Since the sealing shell 35 and the ventilation frame 36 have been in contact with each other and cannot move further, the bidirectional screw 33 will no longer rotate. The rotating plate 72 deforms the torsion spring 73 to provide a greater torsion force to the bidirectional screw 33, ensuring that the sealing shell 35 and the ventilation frame 36 are stably connected together, until the L-shaped extension plate 75 on the outer wall of the rotating plate 72 moves to contact the in-position switch 74 on the outer wall of the transmission plate 71. At this time, the PLC controller 8 controls the servo motor 34 to stop moving, and the servo motor 34 is a self-locking motor, which limits and locks the final position of the sealing shell 35 and the ventilation frame 36;

[0044] The PLC controller 8 then controls the air pump 38 to work for 5 minutes. The air pump 38 cooperates with the air supply pipe 39 to supply air into the sealed shell 35. The supplied air passes through the printed and dyed fabric 23 and is discharged into the ventilation frame 36. Specifically, when gas is supplied into the sealed shell 35, for materials with good air permeability (loose fabric), the gas can diffuse into the external environment through the fabric relatively smoothly, and the air pressure in the sealed shell 35 will not increase significantly; while for materials with poor air permeability (tight fabric), it is difficult for the gas to pass through the fabric, which will cause the air pressure in the sealed shell 35 to increase. By measuring the change of the air pressure in the sealed shell 35, the air permeability of the fabric can be reflected to a certain extent, and the air pressure in the sealed shell 35 acts on the fabric tightness feedback control mechanism 4;

[0045] The air in the sealing shell 35 is transported to the pressure shell 41 through the pressure pipe 43, and drives the pressure piston 44 to move in the pressure shell 41. The pressure piston 44 drives the transmission rack 45 to overcome the elastic force in the pressure spring 46 to move, and the meshing action of the transmission rack 45 and the transmission gear 49 drives the input end of the speed-increasing gearbox 48 to rotate, and then the speed-increasing gearbox 48 amplifies and changes this tiny air pressure difference. The speed-increasing gearbox 48 drives the linkage screw 47 to rotate through the bevel gear assembly 410, and the threaded sleeve action of the linkage screw 47 and the feedback seat 411 enables the feedback seat 411 to drive the feedback conductive contact 413 to slide on the feedback resistor rod 412. Specifically, when the tightness of the printed and dyed fabric 23 is greater, the air pressure in the sealing shell 35 is greater, so that the feedback conductive contact 413 can slide a larger distance on the feedback resistor rod 412, so that the access resistance of the feedback resistor rod 412 is smaller;

[0046] The PLC controller 8 first adjusts the working speed of the unwinder 21 and the winder 22 based on the access resistance signal fed back by the feedback resistor rod 412. The smaller the access resistance of the feedback resistor rod 412, the greater the compactness of the printed and dyed fabric 23. The PLC controller 8 controls the unwinder 21 and the winder 22 to operate at a lower speed. Because the fibers of the compact fabric are closely arranged and have small pores, it is relatively difficult for the dye to penetrate. Therefore, the spraying movement speed should be relatively slow. The slower movement speed can make the spray head 9 stay longer in each area, so that there is enough time for the dye to fully penetrate into the compact fiber gaps. If the movement speed is too fast, the dye will not have time to penetrate, which will result in uneven dyeing, the surface color may be lighter, or only the outer fibers of the fabric are dyed, and the internal fibers are not fully colored.

[0047] The smaller the access resistance of the feedback resistor rod 412 is, the greater the power of the PLC controller 8 is to control the hot air blower 64 to work, so that the drying wind force is greater. The hot air blower 64 cooperates with the drying pipe 63 to transport the hot air to the drying plate 61, and sprays it through the drying head 62 to quickly dry the printed and dyed fabric 23. Because for compact fabrics, it is difficult for the internal moisture to diffuse. Only when the moisture on the surface of the fabric evaporates quickly can a larger humidity gradient be formed between the inside and the surface of the fabric. The larger humidity gradient can promote the diffusion of moisture from the inside of the fabric to the surface, so a larger wind force is needed to quickly reduce the humidity on the surface of the fabric, creating favorable conditions for the moisture to diffuse from the inside to the surface and evaporate.

[0048] At the same time, the smaller the access resistance of the feedback resistor rod 412, the smaller the opening of the electromagnetic pressure regulating valve 10 on the spray head 9 is controlled by the PLC controller 8, which reduces the flow area of ​​the spray head 9, thereby increasing the spraying pressure, because the tighter the fabric, the more difficult it is for the dye to penetrate. A higher spraying pressure can effectively ensure that the dye fully enters the fabric fiber.

[0049] The feedback conductive contact 413 and the feedback resistor rod 412 are connected in series to the power supply circuit of the thrust electromagnetic plate 514. When the density of the printed and dyed fabric 23 is large, the access resistance of the feedback resistor rod 412 is small, and the power supply current of the thrust electromagnetic plate 514 is larger, so that the thrust electromagnetic plate 514 is energized to generate the same and larger magnetic force as the thrust permanent magnet plate 513, thereby driving the movable plate 511 to move up a larger distance along the positioning slide bar 510 to overcome the elastic force of the squeezing spring 512. The PLC controller 8 controls the adjustment motor 53 to operate, and the adjustment motor 53 drives the adjustment screw 52 to rotate. The adjustment plate 54 is moved up through the threaded sleeve effect of the adjustment screw 52 and the adjustment plate 54 until the adjustment plate 54 presses on the pressure confirmation switch 515 on the lower side of the movable plate 511. At this time, the PLC controller 8 controls the adjustment motor 53 to stop operating, and the adjustment plate 54 drives the lifting rod 55 and the U-shaped lifting plate 56 to move up synchronously, thereby causing the adjustment gear 58 to move relative to the adjustment rack 59. The spray head 9 is driven to deflect with the rotating shaft 57 as the rotation point through the meshing action of the adjusting gear 58 and the adjusting rack 59, and the deflected spraying angle of the spray head 9 is automatically adjusted. Specifically, when the density of the printed and dyed fabric 23 is greater, the upward movement distance of the movable plate 511 is greater, and the distance between the pressure confirmation switch 515 and the adjusting plate 54 is greater, that is, the final upward movement distance of the adjusting plate 54 is also greater, thereby causing the spray head 9 to deflect at a greater angle, so that the spray head 9 is closer to a vertical setting, and while adjusting the spraying angle of the spray head 9, the relative height of the spray head 9 is also adjusted synchronously, because the distance between the spray head 9 and the printed and dyed fabric 23 will gradually decrease during the angle adjustment of the spray head 9. This problem can be avoided by raising the spray head 9, and the spraying distance between the spray head 9 and the printed and dyed fabric 23 is compensated to ensure that the spray head 9 and the printed and dyed fabric 23 are always maintained at a stable spraying distance to ensure the spraying quality.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly spraying and dyeing device for textile fabrics, comprising a base (1), characterized in that: Also includes: A transmission and processing mechanism (2) is fixedly mounted on the upper end of the base (1); A fabric tightness detection mechanism (3) is fixedly mounted on the inner front side of the transmission and processing mechanism (2); A fabric tightness feedback control mechanism (4) is fixedly mounted on the fabric tightness detection mechanism (3) and is connected to the fabric tightness detection mechanism (3); A spraying angle self-adjusting mechanism (5) is fixedly mounted on the top of the transmission processing mechanism (2); a spraying head (9) is mounted at the output end of the spraying angle self-adjusting mechanism (5); and an electromagnetic pressure regulating valve (10) is mounted at the end of the spraying head (9); A drying mechanism (6) is fixedly mounted on the top of the transmission and processing mechanism (2) and is located at the rear side of the spraying angle self-adjusting mechanism (5); The PLC controller (8) is fixedly mounted on the upper end of the base (1) and is electrically connected to the transmission and processing mechanism (2), the fabric tightness detection mechanism (3), the fabric tightness feedback control mechanism (4), the spraying angle self-adjusting mechanism (5) and the drying mechanism (6).

2. The environmentally friendly spraying and dyeing device for textile fabrics according to claim 1 is characterized in that: The transmission processing mechanism (2) comprises an unwinder (21) and a rewinder (22) symmetrically fixedly mounted on the upper end of the base (1), the unwinder (21) and the rewinder (22) having the same printed and dyed fabric (23) wound thereon, and a processing shell (24) located between the unwinder (21) and the rewinder (22) is also fixedly mounted on the upper end of the base (1), and the processing shell (24) is provided with material passage openings (25) on opposite sides thereof for the printed and dyed fabric (23) to pass through.

3. The environmentally friendly textile fabric spraying and dyeing device according to claim 2 is characterized in that: The fabric tightness detection mechanism (3) comprises an L-shaped vertical plate (31) fixedly mounted on the bottom of the inner wall of the processing shell (24); a horizontal plate (32) is fixedly mounted on the side wall at the lower end of the L-shaped vertical plate (31); a bidirectional screw (33) is rotatably connected to the lower end of the horizontal portion of the L-shaped vertical plate (31) and the upper end of the horizontal plate (32); a servo motor (34) for driving the bidirectional screw (33) to rotate is fixedly mounted on the upper end of the L-shaped vertical plate (31); and a servo motor (34) for driving the bidirectional screw (33) to rotate is connected between the servo motor (34) and the bidirectional screw (33). The two-way screw rod (33) is symmetrically threadedly sleeved with a sealing shell (35) and a ventilation frame (36) arranged up and down. A supporting mesh plate (37) is fixedly installed on the top of the inner wall of the ventilation frame (36). An air pump (38) is fixedly installed on the upper end of the L-shaped vertical plate (31). The air outlet of the air pump (38) is fixedly connected with an air supply pipe (39). The lower end of the air supply pipe (39) is connected with the sealing shell (35). The air supply pipe (39) is an elastic telescopic pipe.

4. The environmentally friendly spraying and dyeing device for textile fabrics according to claim 3 is characterized in that: The fabric tightness feedback control mechanism (4) comprises a pressure shell (41) and a feedback shell (42) fixedly mounted on the outer wall of the sealing shell (35); the front end of the pressure shell (41) and the sealing shell (35) are connected via a pressure pipe (43); the internal sealing sleeve of the pressure shell (41) is provided with a pressure piston (44); the rear side of the pressure piston (44) is fixedly connected with a transmission rack (45); the end of the transmission rack (45) away from the pressure piston (44) extends out of the pressure shell (41); the pressure piston (44) and the pressure shell (41) are fixedly connected on opposite sides thereof with a pressure spring (46) sleeved on the outside of the transmission rack (45); the internal rotation of the feedback shell (42) A linkage screw (47) is connected, a speed increasing gear box (48) is fixedly installed on the upper end of the feedback shell (42), a transmission gear (49) meshing with a transmission rack (45) is fixedly connected to the upper input end of the speed increasing gear box (48), the lower output end of the speed increasing gear box (48) is transmission-connected to the linkage screw (47) through a bevel gear assembly (410), a feedback seat (411) is threadedly sleeved on the rod wall of the linkage screw (47), a feedback resistor rod (412) arranged parallel to the linkage screw (47) is fixedly installed inside the feedback shell (42), and a feedback conductive contact piece (413) in electrical contact with the feedback resistor rod (412) is fixedly installed on the lower end of the feedback seat (411).

5. The environmentally friendly spraying and dyeing device for textile fabrics according to claim 2 is characterized in that: The spraying angle self-adjusting mechanism (5) comprises a cover shell (51) fixedly mounted on the upper end of the processing shell (24); a vertically arranged adjusting screw (52) is rotatably connected to one side of the interior of the cover shell (51); an adjusting motor (53) for driving the adjusting screw (52) to rotate is fixedly mounted on the upper end of the cover shell (51); an adjusting plate (54) is threadedly sleeved on the rod wall of the adjusting screw (52); a plurality of lifting rods (55) are fixedly connected to the lower end of the adjusting plate (54); the lower ends of the plurality of lifting rods (55) extend through the processing shell (24) and are fixedly connected to the same U-shaped lifting plate (56); the U-shaped lifting plate (56) is rotatably connected to the outer wall of the upper end of the spraying head (9) via a rotating shaft (57); one end of the rotating shaft (57) extends through the U-shaped lifting plate (56) and is fixedly connected to an adjusting gear ( 58), an adjusting rack (59) meshing with the adjusting gear (58) is fixedly installed on the top of the inner wall of the processing shell (24), a plurality of positioning slide bars (510) arranged side by side are fixedly installed on the other side of the inner wall of the cover shell (51), and a same moving plate (511) is slidably sleeved on the outside of the plurality of positioning slide bars (510), a plurality of squeezing springs (512) sleeved on the outside of the positioning slide bars (510) are fixedly installed on the upper end of the moving plate (511) and the top of the inner wall of the cover shell (51), a thrust permanent magnet plate (513) is fixedly installed on the lower end of the moving plate (511), a thrust electromagnetic plate (514) arranged opposite to the thrust permanent magnet plate (513) is fixedly installed on the bottom of the inner wall of the cover shell (51), and a pressure confirmation switch (515) located on the upper side of the adjusting plate (54) is also fixedly installed on one side of the lower end of the moving plate (511).

6. The environmentally friendly textile fabric spraying and dyeing device according to claim 2 is characterized in that: The drying mechanism (6) comprises a drying plate (61) fixedly mounted on the top of the inner wall of the processing shell (24); a plurality of drying heads (62) are evenly and fixedly connected to the lower end of the drying plate (61); a drying pipe (63) is fixedly connected to the upper end of the drying plate (61); a hot air blower (64) is mounted on the drying pipe (63); and the hot air blower (64) is fixedly mounted on the upper end of the processing shell (24).

7. The environmentally friendly textile fabric spraying and dyeing device according to claim 3 is characterized in that: The torsion connection mechanism (7) comprises a transmission plate (71) fixedly sleeved on the upper end rod wall of the bidirectional screw (33); the lower end output end of the servo motor (34) is fixedly connected with a rotating plate (72); the rotating plate (72) is rotatably sleeved on the upper end rod wall of the bidirectional screw (33); a torsion spring (73) sleeved outside the bidirectional screw (33) is fixedly connected between the rotating plate (72) and the transmission plate (71); an in-position switch (74) is fixedly mounted on one side wall of the transmission plate (71); an L-shaped extension plate (75) is fixedly connected to the side wall of the rotating plate (72); a pressing protrusion (76) arranged corresponding to the position of the in-position switch (74) is fixedly connected to the lower end side wall of the L-shaped extension plate (75).

8. The environmentally friendly textile fabric spraying and dyeing device according to claim 3 is characterized in that: Two limiting sliding rods (310) are symmetrically fixedly connected to the opposite sides of the L-shaped vertical plate (31) and the horizontal plate (32), and the outer walls of the sealing shell (35) and the ventilation frame (36) are both provided with limiting sliding holes that are slidably sleeved with the limiting sliding rods (310).

9. The environmentally friendly textile fabric spraying and dyeing device according to claim 3 is characterized in that: The sealing shell (35) and the ventilation frame (36) are integrally connected at their facing ends with an outwardly expanded sealing plate.

10. The environmentally friendly textile fabric spraying and dyeing device according to claim 2, characterized in that: The inner wall of the processing shell (24) corresponding to the material passage opening (25) is designed as an arc-shaped structure.

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