Color change prevention type cloth printing and dyeing equipment based on secondary impact spraying and printing and dyeing method

Abstract

The invention relates to the technical field of printing and dyeing, in particular to color change prevention type cloth printing and dyeing equipment based on secondary impact spraying and a printing and dyeing method.The color change prevention type cloth printing and dyeing equipment comprises a printing and dyeing tank, two sets of parallel side plates are arranged in the printing and dyeing tank, and a plurality of sets of guide rollers are rotationally installed between the two sets of side plates and arranged in an inverted trapezoid shape; the dyeing and finishing head is arranged between the two sets of side plates, the dyeing and finishing head comprises a trapezoidal outer cover and two sets of telescopic plates, and the two sets of telescopic plates can change the length of an opening in the lower portion of the trapezoidal outer cover through deflection; the pressure relief pipe is communicated with the trapezoidal outer cover, an elastic energy storage structure is arranged in the pressure relief pipe, and when the intensity of pressure in the dyeing and finishing head exceeds a preset value, the elastic energy storage structure acts to relieve pressure of the dyeing and finishing head; and the linkage structure is connected with the elastic energy storage structure and the telescopic plate, and when the telescopic plate acts, the linkage structure can change the initial energy storage value of the elastic energy storage structure, and the printing and dyeing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of printing and dyeing, and in particular to anti-color change type cloth printing and dyeing equipment and a printing and dyeing method based on secondary impact spraying. Background Art

[0002] Textile weaving printing and dyeing is to print dyes or pigments on textiles to make them present different colors, patterns and other effects. Dyeing is to dye the yarn, knitted fabric or fabric into the required color after special treatment. Printing and dyeing is to print various patterns and designs on the surface of the fabric after special processing.

[0003] Most of the existing fabric dyeing and finishing devices are carried out by roller dyeing, which deforms the fabric by squeezing and absorbs the dye when the fabric is reset, so that the fabric evenly absorbs the dye to form color. However, this method is more practical for elastic fabrics. When the material is thin and has poor elasticity, the reset of the fabric is not enough to absorb enough dye, which can easily lead to color change of the fabric due to uneven adsorption of dye, affecting the subsequent processing of the fabric. Summary of the invention

[0004] The object of the present invention is to provide a color-change-proof cloth printing and dyeing equipment and a printing and dyeing method based on secondary impact spraying to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: anti-color change type fabric printing and dyeing equipment based on secondary impact spraying, comprising: a printing and dyeing tank, wherein two groups of parallel side plates are arranged in the printing and dyeing tank, and multiple groups of guide rollers are rotatably installed between the two groups of side plates, and the multiple groups of guide rollers are arranged in an inverted trapezoid; a dyeing and finishing head, which is arranged between the two groups of side plates, and the dyeing and finishing head includes a trapezoidal outer cover and two groups of telescopic plates, and the two groups of telescopic plates can change the opening length of the lower part of the trapezoidal outer cover by deflection; a pressure relief pipe, which is connected to the trapezoidal outer cover, and an elastic energy storage structure is arranged in the pressure relief pipe, and when the pressure in the dyeing and finishing head exceeds a preset value, the elastic energy storage structure can relieve the pressure on the dyeing and finishing head; a chain structure, which connects the elastic energy storage structure and the telescopic plate, and when the telescopic plate is actuated, the chain structure can change the initial energy storage value of the elastic energy storage structure.

[0006] As a further solution of the present invention: the telescopic plate comprises a deflection plate rotatably mounted on the trapezoidal outer cover, the interior of the deflection plate is a hollow structure, and the telescopic plate is sealingly and slidably mounted inside the deflection plate, the deflection plate and the side of the telescopic plate are sealingly and slidably connected to the inner side of the trapezoidal outer cover; a retardation groove is formed at the bottom of the trapezoidal outer cover, the end of the telescopic plate away from the deflection plate can slide in the retardation groove, and a baffle is also rotatably mounted on the end of the telescopic plate away from the deflection plate, and the baffle can block the retardation groove.

[0007] As a further solution of the present invention: the elastic energy storage structure includes an adapter formed in the pressure relief pipe, and the sealing ball arranged in the pressure relief pipe can cooperate with the adapter to seal the pressure relief pipe; a connecting piece is also slidably installed in the pressure relief pipe, and the connecting piece and the sealing ball are connected by a No. 1 spring.

[0008] As a further solution of the present invention: the interlocking structure includes a guide member arranged on the trapezoidal outer cover, a lifting member is slidably installed on the guide member, the lifting member is connected to the baffle through a No. 2 connecting rod, and the lifting member is connected to the connecting member through a No. 1 connecting rod.

[0009] As a further solution of the present invention: it also includes: a pressure component, which is arranged between the two groups of side plates, and the pressure component is in rolling cooperation with one of the guide rollers located at the bottom; a No. 1 traction wheel and a No. 2 traction wheel, which are provided in two groups and connected to the side plates, and the No. 1 traction wheel and the No. 2 traction wheel cooperate to pull both sides of the cloth; a follow-up adjustment component, which is arranged on the side plates and connected to the No. 1 traction wheel and the No. 2 traction wheel, and the follow-up adjustment component can increase the pulling force of the No. 1 traction wheel and the No. 2 traction wheel on the cloth when the No. 1 traction wheel and the No. 2 traction wheel move toward the edge of the cloth.

[0010] As a further solution of the present invention: the pressure-applying assembly includes a slide groove formed on the side plate, a slider is slidably installed in the slide groove, and a pressure roller is rotatably installed on the slider; a No. 2 spring is also arranged in the slide groove, one end of the No. 2 spring is connected to the slider, and the other end is connected to the end of the slide groove.

[0011] As a further solution of the present invention: the follow-up adjustment component passes through the transverse bracket slidably arranged on the side plate, the transverse bracket is rotatably connected to the No. 1 traction wheel, and the transverse bracket is provided with an elastic telescopic rod rotatably connected to the No. 2 traction wheel; a transmission shaft is rotatably installed on the transverse bracket, and the transmission shaft is respectively connected to the rotating shafts of the No. 1 traction wheel and the elastic telescopic rod through two transmission belts; the follow-up adjustment component also includes a deflection structure for driving the No. 1 traction wheel and the elastic telescopic rod to rotate.

[0012] As a further solution of the present invention: the transverse movement bracket is connected to the second electric telescopic rod arranged on the side plate; the deflection structure includes a connecting rod fixedly connected to the rotating shaft of the first traction wheel and a transverse plate fixedly connected to the side plate, and the transverse plate is provided with an inclined groove, and the convex shaft arranged at the end of the connecting rod away from the first traction wheel can slide in the inclined groove.

[0013] The method for printing and dyeing cloth using the anti-color change cloth printing and dyeing equipment based on secondary impact spraying comprises the following steps: Step 1: The fabric to be printed and dyed passes through the guide rollers in sequence, so that the fabric is distributed in a trapezoidal shape in the printing and dyeing tank; Step 2: Connect the external dye pumping device to the trapezoidal outer cover with pipelines, and start the external winding device and the external dye pumping device at the same time; Step 3: The external winding device pulls the fabric to move. During this process, the pressure component cooperates with one of the guide rollers to squeeze the fabric and then release it. At the same time, when the fabric passes through two sets of No. 1 traction wheels and No. 2 traction wheels, both sides can be pulled; Step 4: When the fabric passes through the dyeing and finishing head, the dye can be sprayed toward the fabric so that the dye passes through the fabric; Step 5: Adjust the length of the dyeing and finishing head and the distance between the two sets of No. 1 traction wheel and No. 2 traction wheel according to the different widths of the fabric, so that the two match the width of the fabric.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: through the interlocking structure, the dyeing length of the dyeing and finishing head and the pressure value that triggers the movement of the blocking ball are mechanically interlocked, ensuring that when the dyeing and finishing length of the dyeing and finishing head is short, the pressure value that triggers the movement of the blocking ball is smaller, and when the dyeing and finishing length of the dyeing and finishing head is long, the pressure value that triggers the movement of the blocking ball is larger, thereby ensuring that when the dyeing and finishing lengths of the dyeing and finishing head are different, the speed at which the dye passes through the fabric is the same, making the printing and dyeing effect more consistent and improving the quality of the printing and dyeing process; through the provision of the No. 1 traction wheel and the No. 2 traction wheel, on the one hand, it is possible The cloth is kept in a taut state along its width direction to avoid wrinkles and the like when the cloth moves, so that when the dye impacts the cloth surface, the cloth surface can be evenly contacted with the dye, and the cloth can be compressed again, so that the cloth can be deformed and restored to absorb the dye. On the other hand, a reaction force can be given to the cloth in the direction away from its movement, so that under the traction of the external winding device, the cloth can be kept in a taut state along its length direction when it moves, ensuring that the cloth can be in contact with the lower part of the dyeing and finishing head, thereby improving the effect of the dye impacting the cloth and penetrating the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of a color change-proof cloth printing and dyeing device based on secondary impact spraying; Figure 2 It is a schematic structural diagram of an anti-color change type cloth printing and dyeing device based on secondary impact spraying after the printing and dyeing tank is removed in one embodiment; Figure 3 It is a structural schematic diagram of a dyeing and finishing head, a pressure relief pipe and a linkage structure in one embodiment of a color change-proof cloth printing and dyeing equipment based on secondary impact spraying; Figure 4An exploded view of a dyeing and finishing head in one embodiment of a color change-proof cloth printing and dyeing device based on secondary impact spraying; Figure 5 It is a structural schematic diagram of a pressure relief pipe and a chain structure in one embodiment of a color change prevention type cloth printing and dyeing equipment based on secondary impact spraying; Figure 6 It is a structural schematic diagram of a pressure component, a first traction wheel, a second traction wheel, and a follow-up adjustment component in an embodiment of a color change-proof cloth printing and dyeing equipment based on secondary impact spraying; Figure 7 It is a structural schematic diagram of another angle of a pressure component, a No. 1 traction wheel, a No. 2 traction wheel, and a follow-up adjustment component in one embodiment of a color change-proof cloth printing and dyeing equipment based on secondary impact spraying; Figure 8 The present invention is a schematic structural diagram of a deflection structure in an embodiment of a color change prevention type cloth printing and dyeing device based on secondary impact spraying.

[0016] In the figure: 1. printing and dyeing tank; 2. side plate; 201. slideway; 3. guide roller; 4. trapezoidal outer cover; 401. retardation tank; 402. guide tank; 5. deflection plate; 6. telescopic plate; 7. pressure relief pipe; 701. adapter; 8. No. 1 electric telescopic rod; 9. baffle; 901. engaging block; 10. blocking ball; 11. No. 1 spring; 12. connecting piece; 13. No. 1 connecting rod; 14. lifting piece; 15. guide piece; 16. No. 2 connecting rod; 17. No. 2 electric telescopic rod; 18. transverse bracket; 19. No. 1 traction wheel; 20. No. 2 traction wheel; 21. elastic telescopic rod; 22. transmission shaft; 23. pressure roller; 24. No. 2 spring; 25. connecting rod; 2501. cam shaft; 26. transverse plate; 2601. inclined tank. DETAILED DESCRIPTION

[0017] 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.

[0018] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0019] See also Figure 1 to Figure 8 In an embodiment of the present invention, the anti-color change fabric printing and dyeing equipment based on secondary impact spraying includes: a printing and dyeing tank 1, a dyeing and finishing head, a pressure relief pipe 7 and a linkage structure, so that the dyeing and finishing length of the dyeing and finishing head and the pressure value that triggers the movement of the blocking ball 10 are mechanically linked, ensuring that when the dyeing and finishing length of the dyeing and finishing head is short, the pressure value that triggers the movement of the blocking ball 10 is smaller, and when the dyeing and finishing length of the dyeing and finishing head is long, the pressure value that triggers the movement of the blocking ball 10 is larger, thereby ensuring that when the dyeing and finishing length of the dyeing and finishing head is different, the speed at which the dye passes through the fabric is the same, making the printing and dyeing effect more consistent, and improving the quality of the printing and dyeing process.

[0020] Two groups of parallel side plates 2 are arranged in the printing and dyeing tank 1, and multiple groups of guide rollers 3 are rotatably installed between the two groups of side plates 2. The multiple groups of guide rollers 3 are arranged in an inverted trapezoid, so that when the cloth to be printed and dyed passes through the guide rollers 3, it can be guided to below the liquid level of the printing and dyeing tank 1, so that it can be immersed in the dye, thereby realizing printing and dyeing; the dyeing and finishing head is arranged between the two groups of side plates 2, and the dyeing and finishing head includes a trapezoidal outer cover 4 and two groups of telescopic plates. The two groups of telescopic plates can change the opening length of the lower part of the trapezoidal outer cover 4 by deflection; the telescopic plate includes a deflection plate 5 rotatably installed on the trapezoidal outer cover 4. The interior of the deflection plate 5 is a hollow structure, and a telescopic plate 6 is sealed and slidably installed in the deflection plate 5, and the side parts of the deflection plate 5 and the telescopic plate 6 are sealed and slidably connected with the inner side of the trapezoidal outer cover 4. , wherein the rotating shaft of the deflection plate 5 is arranged in an arc shape, and is also sealed and slidably connected with the trapezoidal outer cover 4, so as to prevent the dye from overflowing from the gap between the deflection plate 5, the telescopic plate 6 and the trapezoidal outer cover 4 during the pumping process, and losing the original pressure; a retardation groove 401 is formed at the bottom of the trapezoidal outer cover 4, and the end of the telescopic plate 6 away from the deflection plate 5 can slide in the retardation groove 401, and the end of the telescopic plate 6 away from the deflection plate 5 is also rotatably installed with a baffle 9, and the baffle 9 can block the retardation groove 401, and the baffle 9 is connected to the No. 1 electric telescopic rod 8 arranged on the side plate 2, and an engaging block 901 is arranged on the inner side of the baffle 9, and the engaging block 901 can slide in the guide groove 402 formed on the trapezoidal outer cover 4.

[0021] When in use, the distance between the ends of the two groups of telescopic plates forms the printing and dyeing length of the entire dyeing and finishing head, and the length should match the width of the fabric to be printed and dyed. Specifically, when the width of the fabric to be printed and dyed changes, the two groups of No. 1 electric telescopic rods 8 can be controlled to move, thereby driving the end of the telescopic plate 6 away from the deflection plate 5 to move along the length direction of the retardation groove 401, and when the telescopic plate 6 moves, it can slide relative to the deflection plate 5, so that the total length of the two changes, ensuring that the end of the telescopic plate 6 can slide in the retardation groove 401, and as the angles of the two groups of telescopic plates change, the distance between the ends of the two will also change accordingly, thereby changing the printing and dyeing length of the dyeing and finishing head to match fabrics of different widths.

[0022] Specifically, when the printing and dyeing length of the dyeing and finishing head is at the maximum state, the baffle 9 can block the retardation groove 401, and when the printing and dyeing length of the dyeing and finishing head is reduced, the baffle 9 can still ensure the blocking of the retardation groove 401, thereby preventing the dye from overflowing from the retardation groove 401, ensuring the pressure of the dye when impacting the cloth, so that the dye can penetrate the cloth, thereby improving the printing and dyeing effect.

[0023] See also Figure 5 The pressure relief pipe 7 is connected to the trapezoidal outer cover 4, and an elastic energy storage structure is arranged in the pressure relief pipe 7. When the pressure in the dyeing and finishing head exceeds a preset value, the elastic energy storage structure can relieve the pressure of the dyeing and finishing head; the elastic energy storage structure includes an adapter 701 formed in the pressure relief pipe 7, and the blocking ball 10 arranged in the pressure relief pipe 7 can cooperate with the adapter 701 to block the pressure relief pipe 7; a connector 12 is also slidably installed in the pressure relief pipe 7, and the connector 12 and the blocking ball 10 are connected by a No. 1 spring 11.

[0024] When the printing and dyeing length of the dyeing and finishing head is reduced, if the external dye pumping device still maintains the original power to pump the dye, the outflow speed of the dye at the dyeing and finishing head will be accelerated, and the dyeing and finishing head covers the cloth, so that the cloth has a certain blocking effect on the outflow of the dye. If the cloth is thin at this time, the excessively fast flow speed of the dye may cause the cloth to rupture. At the same time, since the dye flow rate increases and is blocked, the load of the external dye pumping device will increase, and in severe cases, the built-in motor of the external dye pumping device will be burned out.

[0025] In the present embodiment, when the internal pressure in the dyeing and finishing head increases due to the obstruction of the flow of dye, the pressure will act on the blocking ball 10, causing the blocking ball 10 to move away from the adapter 701, compressing the No. 1 spring 11 while making the adapter 701 conductive. At this time, the dye in the dyeing and finishing head can flow out from the pressure relief pipe 7, thereby achieving the effect of pressure relief, and effectively preventing the pressure in the dyeing and finishing head from being too high.

[0026] It is worth noting that the above structure can be staggered in two groups along the forward direction of the cloth, so as to spray the upper and lower surfaces of the cloth on the one hand and realize secondary spraying on the other hand to improve the spraying effect.

[0027] See also Figure 3 , Figure 5 Furthermore, the interlocking structure connects the connecting member 12 and the baffle 9. When the baffle 9 moves, the interlocking structure can change the initial energy storage value of the No. 1 spring 11. The interlocking structure includes a guide member 15 arranged on the trapezoidal outer cover 4, and a lifting member 14 is slidably installed on the guide member 15. The lifting member 14 is connected to the baffle 9 through a No. 2 connecting rod 16, and the lifting member 14 is connected to the connecting member 12 through a No. 1 connecting rod 13.

[0028] When the printing and dyeing length of the dyeing and finishing head is large, the area for the dye to flow out is larger, most of the dye can pass through the cloth, and only a small part flows out from the pressure relief pipe 7. When the printing and dyeing length of the dyeing and finishing head is small, the area for the dye to flow out will become smaller, a small part of the dye can pass through the cloth, and most of it flows out from the pressure relief pipe 7. In these two states, due to the different pressures, the amount of dye passing through the cloth is different, which can easily lead to inconsistent printing and dyeing effects on cloths of different widths.

[0029] In the present embodiment, when the dyeing length of the dyeing and finishing head is reduced, the baffle 9 will move closer to each other and drive the lifting member 14 to move upward along the length direction of the guide member 15 through the No. 2 connecting rod 16. At the same time, the lifting member 14 drives the connecting member 12 to move away from the blocking ball 10 through the No. 1 connecting rod 13, so that the compression of the No. 1 spring 11 in the initial state is reduced, so that when the dyeing and finishing length of the dyeing and finishing head is reduced, the pressure triggering the movement of the blocking ball 10 is reduced accordingly, so that when the pressure in the dyeing and finishing head reaches a preset value, it can flow out from the pressure relief pipe 7, and when the dyeing and finishing length of the dyeing and finishing head is increased, the connecting member 12 will move in the opposite direction, and the initial compression of the No. 1 spring 11 is increased, thereby increasing the pressure triggering the movement of the blocking ball 10, so that when the pressure in the dyeing and finishing head reaches a preset value, it can flow out from the pressure relief pipe 7. The preset pressure values ​​in the two cases are different, but under the corresponding pressure, it can ensure that the speed at which the dye passes through the cloth is the same, so that when cloths of different widths are printed and dyed, the printing and dyeing effect is consistent.

[0030] Through the above-mentioned arrangement, the dyeing length of the dyeing and finishing head and the pressure value that triggers the movement of the blocking ball 10 are mechanically linked, ensuring that when the dyeing and finishing length of the dyeing and finishing head is short, the pressure value that triggers the movement of the blocking ball 10 is smaller, and when the dyeing and finishing length of the dyeing and finishing head is long, the pressure value that triggers the movement of the blocking ball 10 is larger, thereby ensuring that when the dyeing and finishing lengths of the dyeing and finishing head are different, the speed at which the dye passes through the fabric is the same, making the printing and dyeing effect more consistent, thereby improving the quality of the printing and dyeing process.

[0031] See also Figure 1 , Figure 2 , Figure 6~Figure 8 The anti-color change cloth printing and dyeing equipment based on secondary impact spraying also includes: a pressure component, a No. 1 traction wheel 19 and a No. 2 traction wheel 20, and a follow-up adjustment component.

[0032] The pressure-applying assembly is arranged between the two groups of the side plates 2, and the pressure-applying assembly rolls with one of the guide rollers 3 located at the lower part; the pressure-applying assembly includes a slide groove 201 formed on the side plate 2, a slider is slidably installed in the slide groove 201, and a pressure roller 23 is rotatably installed on the slider; a No. 2 spring 24 is also arranged in the slide groove 201, one end of the No. 2 spring 24 is connected to the slider, and the other end is connected to the end of the slide groove 201.

[0033] During use, when the cloth passes through the guide rollers 3, the pressure roller 23 can cooperate with one of the guide rollers 3 to squeeze the cloth. By squeezing the cloth, on the one hand, the air inside the cloth can be evacuated, and on the other hand, the cloth can be compressed. When the cloth moves away from the pressure roller 23, it can be elastically reset and absorb the dye in the printing and dyeing tank 1 during the reset process, so that the dye can better enter the interior of the cloth, resulting in a better printing and dyeing effect.

[0034] Furthermore, for fabrics of different thicknesses, when passing through the pressure roller 23 and the guide roller 3, the pressure roller 23 moves a greater distance relative to the guide roller 3. At this time, the No. 2 spring 24 is compressed more obviously and can provide a greater elastic force, so that when the thicker fabric passes between the pressure roller 23 and the guide roller 3, it can be squeezed more obviously, so that it can absorb enough dye when it is reset, so that its interior can be printed and dyed.

[0035] See also Figure 6 , Figure 8, a No. 1 traction wheel 19 and a No. 2 traction wheel 20 are provided with two groups and connected to the side plate 2, and the No. 1 traction wheel 19 cooperates with the No. 2 traction wheel 20 to pull both sides of the cloth; the follow-up adjustment component is provided on the side plate 2 and connected to the No. 1 traction wheel 19 and the No. 2 traction wheel 20, and the follow-up adjustment component can increase the pulling force of the No. 1 traction wheel 19 and the No. 2 traction wheel 20 on the cloth when the No. 1 traction wheel 19 and the No. 2 traction wheel 20 move toward the edge of the cloth, and the follow-up adjustment component passes through the transverse bracket 18 slidingly arranged on the side plate 2, and the transverse bracket 18 is rotatably connected to the No. 1 traction wheel 19, and an elastic telescopic rod 21 rotatably connected to the No. 2 traction wheel 20 is provided on the transverse bracket 18. It is worth noting that the rotation axis centers of the No. 1 traction wheel 19 and the No. 2 traction wheel 20 are in a parallel state, and the extension line of the rotation axis centers of the No. 1 traction wheel 19 and the No. 2 traction wheel 20 is parallel to the No. 1 traction wheel 19. The movement direction of the center line of the cloth is always at an acute angle; a transmission shaft 22 is rotatably installed on the transverse moving bracket 18, and the transmission shaft 22 is respectively connected to the rotating shafts of the No. 1 traction wheel 19 and the elastic telescopic rod 21 through two transmission belts; the follow-up adjustment component also includes a deflection structure for driving the No. 1 traction wheel 19 and the elastic telescopic rod 21 to rotate, and the transverse moving bracket 18 is connected to the No. 2 electric telescopic rod 17 arranged on the side plate 2; the deflection structure includes a connecting rod 25 fixedly connected to the rotating shaft of the No. 1 traction wheel 19 and a transverse plate 26 fixedly connected to the side plate 2, and an inclined groove 2601 is arranged on the transverse plate 26, and the convex shaft 2501 arranged at the end of the connecting rod 25 away from the No. 1 traction wheel 19 can slide in the inclined groove 2601, wherein the inclined groove 2601 gradually increases along its length direction toward the distance between the middle of the cloth and the transverse moving bracket 18.

[0036] When in use, the cloth passes between the No. 1 traction wheel 19 and the No. 2 traction wheel 20, and because the extension line of the center of the rotating shaft of the No. 1 traction wheel 19 and the No. 2 traction wheel 20 forms an acute angle with the movement direction of the cloth center line, the end of the cloth can be pulled outward under the cooperation of the No. 1 traction wheel 19 and the No. 2 traction wheel 20.

[0037] It should be noted that when the cloth passes through the No. 1 traction wheel 19 and the No. 2 traction wheel 20, the cloth will slide relative to the No. 1 traction wheel 19 and the No. 2 traction wheel 20 and generate friction. The friction has a component along the length and width of the cloth. On the one hand, the cloth can be in a taut state along its width direction to avoid wrinkles and the like when the cloth moves, so that when the dye impacts the surface of the cloth, the surface of the cloth can be evenly contacted with the dye, and the cloth can be compressed again, so that the cloth can be deformed and restored to absorb the dye. On the other hand, a reaction force can be given to the cloth away from its movement direction, so that under the traction of the external winding device, the cloth can be in a taut state along its length direction when it moves, ensuring that the cloth can be in a fit state with the lower part of the dyeing and finishing head, thereby improving the effect of the dye impacting the cloth and penetrating the cloth.

[0038] When the width of the fabric to be printed and dyed changes, it is necessary to adjust the distance between the two sets of No. 1 traction wheels 19 and the No. 2 traction wheels 20. At this time, the No. 2 electric telescopic rod 17 is controlled to move, which can drive the transverse moving bracket 18 to move. Specifically, when the transverse moving bracket 18 moves toward the middle of the fabric, the distance between the two sets of No. 1 traction wheels 19 and the No. 2 traction wheels 20 will decrease, and the convex shaft 2501 will move along the length direction of the inclined groove 2601. Since the distance between the inclined groove 2601 and the transverse moving bracket 18 gradually increases along its length direction toward the middle of the fabric, the distance between the inclined groove 2601 and the transverse moving bracket 18 will decrease. The connecting rod 25 is increased, and the No. 1 traction wheel 19 is driven to deflect, so that the angle between the extension line of the center of the rotating shaft of the No. 1 traction wheel 19 and the moving direction of the center line of the cloth is increased, thereby reducing the traction force of the No. 1 traction wheel 19 and the No. 2 traction wheel 20 on the cloth. Based on the above arrangement, the cloth with a wider width can be pulled with a greater force to ensure that the cloth with a wider width can be in a taut state, while the cloth with a narrower width is pulled with a smaller force, ensuring the taut state while avoiding the cloth from being broken due to excessive traction resistance.

[0039] Through the above arrangement, on the one hand, the cloth can be in a taut state along its width direction, thereby avoiding wrinkles and the like when the cloth moves, so that when the dye impacts the cloth surface, the cloth surface can be evenly in contact with the dye, and at the same time the cloth can be compressed again, so that the cloth can be deformed and restored to absorb the dye again. On the other hand, a reaction force can be given to the cloth in the direction away from its movement, so that under the traction of the external winding device, the cloth can be in a taut state along its length direction when it moves, ensuring that the cloth can be in a fit state with the lower part of the dyeing and finishing head, thereby improving the effect of the dye impacting the cloth and penetrating the cloth.

[0040] As an embodiment of the present invention, a method for printing and dyeing cloth using the anti-color change cloth printing and dyeing equipment based on secondary impact spraying is also proposed, comprising the following steps: Step 1: The fabric to be printed and dyed passes through the guide rollers 3 in sequence, so that the fabric is distributed in a trapezoidal shape in the printing and dyeing tank 1; Step 2: connect the external dye pumping device to the trapezoidal outer cover 4 through pipelines, and start the external winding device and the external dye pumping device at the same time; Step 3: The external winding device pulls the cloth to move. During this process, the pressure component cooperates with one of the guide rollers 3 to squeeze the cloth and then release it. At the same time, when the cloth passes through the two sets of No. 1 traction wheel 19 and No. 2 traction wheel 20, both sides can be pulled; Step 4: When the fabric passes through the dyeing and finishing head, the dye can be sprayed toward the fabric so that the dye passes through the fabric; Step 5: According to the different widths of the fabrics, the length of the dyeing and finishing head and the distance between the two sets of No. 1 traction wheel 19 and No. 2 traction wheel 20 are adjusted to match the width of the fabrics.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Anti-color change cloth printing and dyeing equipment based on secondary impact spraying, including: The printing and dyeing tank (1) is provided with two groups of parallel side plates (2) in the printing and dyeing tank (1), and a plurality of groups of guide rollers (3) are rotatably mounted between the two groups of side plates (2), and the plurality of guide rollers (3) are arranged in an inverted trapezoidal shape; the printing and dyeing tank (1) is characterized in that it also comprises: a dyeing and finishing head, which is arranged between the two groups of side plates (2), and the dyeing and finishing head comprises a trapezoidal outer cover (4) and two groups of telescopic plates, and the two groups of telescopic plates can change the opening length of the lower part of the trapezoidal outer cover (4) by deflection; a pressure relief pipe (7) which is connected to the trapezoidal outer cover (4), and an elastic energy storage structure is arranged in the pressure relief pipe (7), and when the pressure in the dyeing and finishing head exceeds a preset value, the elastic energy storage structure can be actuated to relieve the pressure of the dyeing and finishing head; and a chain structure which connects the elastic energy storage structure and the telescopic plate, and when the telescopic plate is actuated, the chain structure can change the initial energy storage value of the elastic energy storage structure.

2. The anti-color change type cloth printing and dyeing equipment based on secondary impact spraying according to claim 1 is characterized in that: The telescopic plate member comprises a deflection plate (5) rotatably mounted on the trapezoidal outer cover (4); the interior of the deflection plate (5) is a hollow structure, and a telescopic plate (6) is sealed and slidably mounted inside the deflection plate (5); the side portions of the deflection plate (5) and the telescopic plate (6) are sealed and slidably connected to the inner side of the trapezoidal outer cover (4); a retardation groove (401) is formed at the bottom of the trapezoidal outer cover (4); an end of the telescopic plate (6) away from the deflection plate (5) is capable of sliding in the retardation groove (401); a baffle plate (9) is also rotatably mounted on the end of the telescopic plate (6) away from the deflection plate (5); the baffle plate (9) is capable of blocking the retardation groove (401).

3. The anti-color change type cloth printing and dyeing equipment based on secondary impact spraying according to claim 2 is characterized in that: The elastic energy storage structure comprises an adapter portion (701) formed in the pressure relief pipe (7), and a blocking ball (10) arranged in the pressure relief pipe (7) can cooperate with the adapter portion (701) to block the pressure relief pipe (7); a connecting piece (12) is also slidably installed in the pressure relief pipe (7), and the connecting piece (12) and the blocking ball (10) are connected via a No. 1 spring (11).

4. The anti-color change type cloth printing and dyeing equipment based on secondary impact spraying according to claim 3 is characterized in that: The interlocking structure comprises a guide member (15) arranged on the trapezoidal outer cover (4), a lifting member (14) being slidably mounted on the guide member (15), the lifting member (14) being connected to the baffle (9) via a second connecting rod (16), and the lifting member (14) being connected to the connecting member (12) via a first connecting rod (13).

5. The anti-color change type cloth printing and dyeing equipment based on secondary impact spraying according to claim 1 is characterized in that: Also includes: A pressure component is arranged between the two groups of the side plates (2), and the pressure component rolls with one of the guide rollers (3) located at the bottom; two groups of a first traction wheel (19) and a second traction wheel (20) are provided and connected to the side plates (2), and the first traction wheel (19) and the second traction wheel (20) cooperate to pull both sides of the cloth; a follow-up adjustment component is arranged on the side plates (2) and connected to the first traction wheel (19) and the second traction wheel (20), and the follow-up adjustment component can increase the pulling force of the first traction wheel (19) and the second traction wheel (20) on the cloth when the two wheels move toward the edge of the cloth.

6. The anti-color change type cloth printing and dyeing equipment based on secondary impact spraying according to claim 5 is characterized in that: The pressure-applying assembly comprises a slide groove (201) formed on the side plate (2), a slider being slidably mounted in the slide groove (201), and a pressure-applying roller (23) being rotatably mounted on the slider; a second spring (24) is also arranged in the slide groove (201), one end of the second spring (24) being connected to the slider, and the other end being connected to the end of the slide groove (201).

7. The anti-color change type cloth printing and dyeing equipment based on secondary impact spraying according to claim 5 is characterized in that: The follow-up adjustment component passes through a transverse bracket (18) slidably arranged on the side plate (2); the transverse bracket (18) is rotatably connected to the first traction wheel (19), and an elastic telescopic rod (21) rotatably connected to the second traction wheel (20) is arranged on the transverse bracket (18); a transmission shaft (22) is rotatably mounted on the transverse bracket (18); the transmission shaft (22) is respectively connected to the rotation shafts of the first traction wheel (19) and the elastic telescopic rod (21) through two transmission belts; the follow-up adjustment component also includes a deflection structure for driving the first traction wheel (19) and the elastic telescopic rod (21) to rotate.

8. The anti-color change type cloth printing and dyeing equipment based on secondary impact spraying according to claim 7 is characterized in that: The transverse moving bracket (18) is connected to a No. 2 electric telescopic rod (17) arranged on the side plate (2); the deflection structure comprises a connecting rod (25) fixedly connected to the rotating shaft of the No. 1 traction wheel (19) and a transverse plate (26) fixedly connected to the side plate (2), the transverse plate (26) being provided with an inclined groove (2601), and a convex shaft (2501) arranged at an end of the connecting rod (25) away from the No. 1 traction wheel (19) being able to slide in the inclined groove (2601).

9. A method for printing and dyeing cloth using the anti-color change cloth printing and dyeing equipment based on secondary impact spraying as described in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: the fabric to be printed and dyed is passed through the guide rollers (3) in sequence, so that the fabric is distributed in a trapezoidal shape in the printing and dyeing tank (1); Step 2: connect the external dye pumping device to the trapezoidal outer cover (4) through pipelines, and start the external winding device and the external dye pumping device at the same time; Step 3: The external winding device pulls the cloth to move. During this process, the pressure component cooperates with one of the guide rollers (3) to squeeze the cloth and then release it. At the same time, when the cloth passes through the two sets of No. 1 traction wheel (19) and No. 2 traction wheel (20), both sides can be pulled; Step 4: When the fabric passes through the dyeing and finishing head, the dye can be sprayed toward the fabric so that the dye passes through the fabric; Step 5: According to the different widths of the fabrics, the length of the dyeing and finishing head and the distance between the two sets of the first traction wheel (19) and the second traction wheel (20) are adjusted so that the two are matched with the width of the fabrics.

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