A continuous fabric printing and dyeing machine

Abstract

The present invention belongs to the technical field of fabric printing and dyeing, and particularly relates to a continuous fabric printing and dyeing machine, which includes a base and a dye vat. The base is fixed with a feeding guide roller and a discharging guide roller. U-shaped brackets are movably arranged at the front and rear ends of the feeding side and the discharging side of the dye vat. The front U-shaped brackets and the rear U-shaped brackets are fixedly connected through a transverse connecting rod. Two first tensioning rollers are connected between the two U-shaped brackets on the feeding side and between the two U-shaped brackets on the discharging side. Transverse guide rails are also arranged at the front and rear ends of the feeding side and the discharging side. The transverse guide rails are connected with sliding tables, and the sliding tables are elastically connected with the transverse guide rails through first springs. Second tensioning rollers are arranged on the sliding tables at the front and rear ends. The base is provided with a lifting mechanism, and the lifting mechanism is in transmission connection with one of the U-shaped brackets; by arranging the lifting mechanism, the fabric between the first tensioning rollers on both sides can move up and down in the dye vat to fully contact the dye pulp in the dye vat.

Description

Technical Field

[0001] The present invention belongs to the technical field of fabric printing and dyeing, and particularly relates to a continuous fabric printing and dyeing machine. Background Technique

[0002] Fabric is an essential material for daily necessities such as clothes, bed sheets, and quilt covers. In the process of fabric processing, fabric printing and dyeing is an important link. Fabric printing and dyeing is the general term for fabric pretreatment, printing, post-treatment, washing, etc. Generally speaking, pretreatment is to pre-treat the fabric to ensure its cleanliness; dyeing is to make the fabric present different colors; printing is to print patterns on the fabric; post-treatment is to organize and collect the previous processes; washing is to finally wash and clean the fabric and dry it.

[0003] In fabric dyeing, existing methods mostly involve submerging the fabric into the dye paste in the dye vat by means of a feeding roller, and at the same time adjusting the feeding rate to meet the dyeing time of the fabric in the dye vat to complete continuous feeding and dyeing of the fabric. However, in this way, the fabric is often fixed at a certain height in the dye vat, so it can only contact the dye paste at this height and cannot fully contact and utilize the dye paste in the dye vat. Summary of the Invention

[0004] The purpose of the present invention is to provide a continuous fabric printing and dyeing machine to solve the problems existing in the background technique.

[0005] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0006] A continuous fabric printing and dyeing machine includes a base and a dye vat. The base is erected and fixed with a feeding guide roller above the feeding side of the dye vat, and the base is erected and fixed with a discharging guide roller above the discharging side of the dye vat. U-shaped brackets are movably arranged at the front and rear ends of the feeding side and the discharging side of the dye vat. The two sides of the U-shaped brackets respectively extend downward along the inner wall and the outer wall of the dye vat to the bottom of the dye vat. The tops between the two U-shaped brackets at the front end and the tops between the two U-shaped brackets at the rear end are fixedly connected by a transverse connecting rod. Two first tension rollers arranged vertically in parallel are fixedly connected between the lower ends of the inner sides of the two U-shaped brackets on the feeding side of the dye vat and between the lower ends of the inner sides of the two U-shaped brackets on the discharging side of the dye vat.

[0007] The front and rear ends of the feeding side and the discharging side of the dyeing vat are both provided with transverse guide rails. Each of the transverse guide rails is slidably connected with a sliding table. The sliding table and the transverse guide rail are elastically connected by a first spring. A second tensioning roller is commonly arranged between the two sliding tables at the front and rear ends. The base is provided with a lifting mechanism, and the lifting mechanism is in transmission connection with one of the U-shaped brackets. The cloth bypasses the feeding guide roller, the second tensioning roller and the first tensioning roller on the feeding side of the dyeing vat in an S shape in sequence, and bypasses the first tensioning roller, the second tensioning roller and the discharging guide roller on the discharging side of the dyeing vat in an S shape in sequence.

[0008] The lifting mechanism includes a sliding cavity, a motor and a transmission block. The sliding cavity is fixedly installed on the base and corresponds to one of the U-shaped brackets. The transmission block is slidably connected with the sliding cavity and fixedly connected to the lower end of the outer side of the U-shaped bracket. The motor is fixedly installed on the top of the sliding cavity. A transmission screw rod is rotatably connected inside the sliding cavity. The transmission screw rod penetrates through the transmission block and is in threaded transmission connection with the transmission block. The output end of the motor is fixedly connected to the transmission screw rod.

[0009] The inner bottom parts of all the U-shaped brackets are commonly connected with a rectangular frame matching the dyeing vat. A stirring mechanism is commonly arranged between the rectangular frame and the inner wall of the dyeing vat.

[0010] The stirring mechanism includes a plurality of rotating rods, a plurality of transmission gears and a plurality of straight racks. Each of the rotating rods extends along the width direction of the rectangular frame and is equidistantly arranged along the length direction of the rectangular frame. Both ends of each rotating rod rotatably penetrate through the rectangular frame. A plurality of stirring blades are processed on the side surface of each rotating rod. Both ends of each rotating rod are fixedly connected to the transmission gears. Each of the straight racks is installed on the inner wall of the dyeing vat and meshes with each of the transmission gears respectively.

[0011] Return grooves communicating with the upper side of the dyeing vat are also arranged between the two transverse guide rails on the feeding side of the dyeing vat and between the two transverse guide rails on the discharging side of the dyeing vat.

[0012] A spreading mechanism and a transmission mechanism are also commonly arranged between the dyeing vat and the first tensioning roller.

[0013] A slideway is provided inside each of the first tension rollers. A slide bar is slidably sleeved inside the slideway. The spreading mechanism includes an upper spreading frame and a lower spreading frame. Two ends of the upper spreading frame are respectively fixedly connected to the slide bars inside the two first tension rollers located above. Two ends of the lower spreading frame are respectively fixedly connected to the slide bars inside the two first tension rollers located below. The upper spreading frame and the lower spreading frame are arranged in a staggered manner. Arc-shaped slideways are also provided inside the two U-shaped brackets corresponding to the two ends of the first tension roller. Cables are arranged inside the two arc-shaped slideways. The upper and lower slide bars are connected into an annular structure through the cables on both sides.

[0014] The transmission mechanism includes a vertical hydraulic cylinder, a longitudinal hydraulic cylinder and a connecting frame. The vertical hydraulic cylinder is fixedly installed on the outer wall of the dye vat and is provided with a vertical piston rod. The vertical piston rod extends upward and is fixedly connected to the corresponding horizontal connecting rod. The longitudinal hydraulic cylinder is fixedly installed on the outer wall of the dye vat and is provided with a longitudinal piston rod. The longitudinal piston rod slidably penetrates the dye vat and extends into the dye vat. A positioning seat is fixedly arranged at the end of the longitudinal piston rod. The connecting frame is fixedly connected to the upper spreading frame and extends upward. The connecting frame is fixedly provided with a vertical positioning rod that slidably penetrates the positioning seat. A spring-back assembly is also arranged between the positioning seat and the dye vat. The lower end of the vertical hydraulic cylinder is connected to the end of the longitudinal hydraulic cylinder away from the positioning seat through a hydraulic pipe.

[0015] The spring-back assembly includes a longitudinal connecting rod and a second spring. One end of the longitudinal connecting rod is fixedly connected to the positioning seat. The other end of the longitudinal connecting rod penetrates the dye vat and is fixedly connected to the outer wall of the dye vat through the second spring.

[0016] The upper spreading frame and the lower spreading frame include a plurality of spreading rods arranged horizontally, and at least two of the spreading rods are respectively located at both ends of the slide bar. The maximum distance between adjacent two spreading rods is not greater than the fully extended length of the longitudinal piston rod. The dimensional difference between the slide bar and the slideway is equal to the fully extended length of the longitudinal piston rod. The staggered distance between the upper spreading frame and the lower spreading frame is equal to the fully extended length of the longitudinal piston rod.

[0017] By providing a lifting mechanism, the present invention can make the fabric between the two first tension rollers move up and down in the dye vat to fully contact the dye slurry in the dye vat, and by using the elastic force, the fabric between the two first tension rollers can be kept taut during the up and down movement of the fabric, and problems such as fabric curling and wrinkling resulting in poor fabric dyeing quality will not occur. Brief Description of the Drawings

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the drawings.

[0019] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention;

[0020] Figure 2 is Figure 1 an enlarged schematic view of the meshing structure of the transmission gear at position A and the straight rack of

[0021] Figure 3 is Figure 1 an enlarged schematic view of the partial sectional structure of the lifting mechanism at position B of

[0022] Figure 4 It is a front sectional structural schematic diagram of the first embodiment of the present invention;

[0023] Figure 5 It is a schematic structure of the second embodiment of the present invention Figure 1 ;

[0024] Figure 6 is Figure 5 an enlarged schematic view of the structure of the transmission mechanism at position C of

[0025] Figure 7 It is a schematic structure of the second embodiment of the present invention Figure 2 ;

[0026] Figure 8 It is a partial sectional structural schematic diagram of the second embodiment of the present invention;

[0027] Figure 9 is Figure 8 an enlarged schematic view of the internal sectional structure of the upper and lower first tension rollers at position D of

[0028] The main component symbols are explained as follows:

[0029] Base 100, dyeing vat 101, feeding guide roller 102, discharging guide roller 103, U-shaped bracket 110, transverse connecting rod 111, first tension roller 112, sliding cavity 113, motor 114, transmission block 115, transmission screw 116, transverse guide rail 120, sliding table 121, first spring 122, second tension roller 123, return groove 124, rectangular frame 130, rotating rod 131, transmission gear 132, straight rack 133, stirring blade 134;

[0030] Slideway 200, slide bar 201, cable 202, upper spreading frame 210, lower spreading frame 211, vertical hydraulic cylinder 220, vertical piston rod 2201, hydraulic pipe 2202, longitudinal hydraulic cylinder 221, longitudinal piston rod 2211, positioning seat 2212, connecting frame 222, vertical positioning rod 2221, longitudinal connecting rod 223, second spring 224. Detailed implementation manners

[0031] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Embodiment 1, as Figures 1 to 4 shown, a continuous fabric dyeing and printing machine includes a base 100 and a dye vat 101. The base 100 is erected and fixed with a feeding guide roller 102 above the feeding side of the dye vat 101, and the base 100 is erected and fixed with a discharging guide roller 103 above the discharging side of the dye vat 101. U-shaped brackets 110 are movably arranged at the front and rear ends of both the feeding side and the discharging side of the dye vat 101. The two sides of the U-shaped brackets 110 respectively extend downward along the inner wall and the outer wall of the dye vat 101 to the bottom of the dye vat 101. Between the tops of the two U-shaped brackets 110 at the front end and between the tops of the two U-shaped brackets 110 at the rear end are fixedly connected through a transverse connecting rod 111. Between the lower ends of the inner sides of the two U-shaped brackets 110 on the feeding side of the dye vat 101 and between the lower ends of the inner sides of the two U-shaped brackets 110 on the discharging side of the dye vat 101 are fixedly connected with two first tension rollers 112 arranged side by side up and down;

[0033] On both the front and rear ends of the feeding side and the discharging side of the dye vat 101, transverse guide rails 120 are also provided. Each transverse guide rail 120 is slidably connected with a sliding table 121. The sliding table 121 and the transverse guide rail 120 are elastically connected through a first spring 122. A second tension roller 123 is jointly arranged between the two sliding tables 121 at the front and rear ends. The base 100 is provided with a lifting mechanism, and the lifting mechanism is in transmission connection with one of the U-shaped brackets 110. The fabric sequentially bypasses the feeding guide roller 102, the second tension roller 123, and the first tension roller 112 on the feeding side of the dye vat 101 in an S shape, and sequentially bypasses the first tension roller 112, the second tension roller 123, and the discharging guide roller 103 on the discharging side of the dye vat 101 in an S shape.

[0034] As Figure 1 and Figure 4 shown, in this embodiment, the fabric enters from the feeding side of the dye vat 101 and sequentially bypasses the feeding guide roller 102, the second tension roller 123, and the first tension roller 112 on the feeding side of the dye vat 101 in an S shape. Among them, during the process of the fabric bypassing the second tension roller 123 on the feeding side, it overcomes the elastic force of the first spring 122 and stretches the first spring 122, causing the sliding table 121 to move to one end of the transverse guide rail 120 close to the dye vat 101, and sequentially bypasses the first tension roller 112, the second tension roller 123, and the discharging guide roller 103 on the discharging side of the dye vat 101 in an S shape. Among them, during the process of the fabric bypassing the second tension roller 123 on the discharging side, it overcomes the elastic force of the first spring 122 and stretches the first spring 122, causing the sliding table 121 to move to one end of the transverse guide rail 120 close to the dye vat 101, and finally exits from the discharging side of the dye vat 101, and the fabric is dyed by the dye slurry in the dye vat 101;

[0035] During the fabric dyeing process, through the reciprocating lifting of the lifting mechanism, the corresponding U-shaped bracket 110 can reciprocate up and down. Since the two U-shaped brackets 110 on the feeding side and the discharging side are connected as a whole by two first tension rollers 112 arranged up and down, and at the same time, the two U-shaped brackets 110 at the front end and the two U-shaped brackets 110 at the rear end are fixed by a transverse connecting rod 111, the four U-shaped brackets 110 are jointly connected as a whole. Therefore, when the U-shaped bracket 110 reciprocates up and down, the fabric between the two first tension rollers 112 on both sides can reciprocate up and down in the dyeing vat 101 to fully contact the dye slurry in the dyeing vat 101;

[0036] At the same time, when the fabric between the two first tension rollers 112 on both sides moves upward, under the synchronous elastic rebound of the two first springs 122 on both sides, the two sliding platforms 121 on both sides can be elastically pulled back synchronously, so that the two second tension rollers 123 on both sides continuously tighten the two sides of the fabric to keep the fabric between the two first tension rollers 112 on both sides tightened. When the fabric between the two first tension rollers 112 on both sides moves downward, the fabric can overcome the elastic force of the first spring 122 and stretch the first spring 122 to keep the fabric between the two first tension rollers 112 on both sides tightened. In this way, the fabric between the two first tension rollers 112 on both sides can be kept tightened during the up and down movement process, and there will be no problem of poor fabric dyeing quality caused by fabric curling and wrinkling.

[0037] In this embodiment, by setting the lifting mechanism, the fabric between the two first tension rollers 112 on both sides can move up and down in the dyeing vat to fully contact the dye slurry in the dyeing vat, and by using the elastic force, the fabric between the two first tension rollers 112 on both sides can be kept tightened during the up and down movement process of the fabric, and there will be no problem of poor fabric dyeing quality caused by fabric curling and wrinkling.

[0038] As a further description of the lifting mechanism in this embodiment, as Figure 3 shown, the lifting mechanism includes a sliding cavity 113, a motor 114 and a transmission block 115. The sliding cavity 113 is fixedly installed on the base 100 and corresponds to one of the U-shaped brackets 110. The transmission block 115 is slidably connected to the sliding cavity 113 and fixedly connected to the lower end of the outer side of the U-shaped bracket 110. The motor 114 is fixedly installed on the top of the sliding cavity 113. A transmission screw 116 is also rotatably connected inside the sliding cavity 113. The transmission screw 116 passes through the transmission block 115 and is in threaded transmission connection with the transmission block 115. The output end of the motor 114 is fixedly connected to the transmission screw 116.

[0039] When the motor 114 starts, it can drive the transmission screw 116 in the sliding cavity 113 to rotate. Since the transmission screw 116 is in threaded connection with the transmission block 115, the transmission block 115 can move up and down along the transmission screw 116, so that the fixed U-shaped bracket 110 can move up and down. As a result, the fabric between the two first tension rollers 112 can move up and down reciprocally in the dye vat 101 to fully contact the dye slurry in the dye vat 101. At the same time, position switches corresponding to the transmission block 115 are arranged on the upper and lower sides inside the sliding cavity 113. When the transmission block 115 moves to any position switch, the position switch controls the motor 114 to reverse and rotate, so that the rotation direction of the motor 114 can be automatically regulated to automatically make the transmission block 115 move up and down reciprocally.

[0040] As a further improvement of this embodiment, to fully agitate the dye slurry in the dye vat to ensure the uniformity of the dye slurry, as Figure 1 , Figure 2 and Figure 4 shown, a rectangular frame 130 matching the dye vat 101 is commonly connected to the inner bottom of each U-shaped bracket 110, and a stirring mechanism is commonly arranged between the rectangular frame 130 and the inner wall of the dye vat 101;

[0041] The stirring mechanism includes a number of rotating rods 131, a number of transmission gears 132 and a number of straight racks 133. Each rotating rod 131 extends along the width direction of the rectangular frame 130 and is equidistantly arranged along the length direction of the rectangular frame 130. Both ends of each rotating rod 131 rotatably penetrate the rectangular frame 130. A plurality of stirring blades 134 are machined on the side surface of each rotating rod 131. Both ends of each rotating rod 131 are fixedly connected to the transmission gear 132. Each straight rack 133 is installed on the inner wall of the dye vat 101 and meshes with each transmission gear 132 respectively.

[0042] When each U-shaped bracket 110 moves up and down reciprocally synchronously, the rectangular frame 130 fixed at the bottom can move up and down reciprocally. Through the meshing between the transmission gear 132 and the straight rack 133, each transmission gear 132 can rotate, thereby driving each rotating rod 131 in the rectangular frame 130 to rotate. As a result, the stirring blades 134 on the side surfaces of each rotating rod 131 stir the dye slurry. At the same time, the stirring of the stirring blades 134 follows the up and down movement of the rectangular frame 130. Therefore, the stirring blades 134 will rotate and stir the dye slurry while moving up and down. In this way, the stirring blades 134 can comprehensively stir the dye slurry in the dye vat 101 to improve the uniformity of the dye slurry, and at the same time, it will not occupy a large amount of internal space of the dye vat 101;

[0043] At the same time, as Figure 1 and Figure 2As shown, in the manner shown in the figure, the meshing directions of two adjacent transmission gears 132 and the corresponding two straight racks 133 can be made opposite, so that the stirring blades 134 of two adjacent rotating rods 131 can rotate in opposite directions, and thus the stirring flow direction of the dye pulp can be made more variable to improve the stirring effect of the dye pulp.

[0044] As a further optimization of this embodiment, as Figure 1 and Figure 4 shown, a return flow groove 124 communicating with the upper side of the dye vat 101 is also provided between the two transverse guide rails 120 on the feeding side of the dye vat 101 and between the two transverse guide rails 120 on the discharging side of the dye vat 101.

[0045] When the first tension rollers 112 on both sides move upward, the fabric between the first tension rollers 112 and the second tension rollers 123 will gradually be above the return flow groove 124, and the dye pulp dripping from it can also flow back into the dye vat 101 through the return flow groove 124.

[0046] Embodiment 2 is a further improvement based on Embodiment 1 to make the distribution of the dye pulp on the fabric surface more uniform and prevent local accumulation from causing color difference. As Figures 5 to 9 shown, a spreading mechanism and a transmission mechanism are also jointly provided between the dye vat 101 and the first tension rollers 112;

[0047] A slideway 200 is opened inside each of the first tension rollers 112. A slide rod 201 is slidably sleeved inside the slideway 200. The spreading mechanism includes an upper spreading frame 210 and a lower spreading frame 211. The two ends of the upper spreading frame 210 are respectively fixedly connected to the slide rods 201 inside the two upper first tension rollers 112. The two ends of the lower spreading frame 211 are respectively fixedly connected to the slide rods 201 inside the two lower first tension rollers 112. The upper spreading frame 210 and the lower spreading frame 211 are arranged in an alternating manner. Arc-shaped slideways are also opened inside the two U-shaped brackets 110 corresponding to the two ends of the first tension roller 112. A wire 202 is arranged inside each of the two arc-shaped slideways. The upper and lower slide rods 201 are connected into an annular structure through the wires 202 on both sides;

[0048] The transmission mechanism includes a vertical hydraulic cylinder 220, a longitudinal hydraulic cylinder 221, and a connecting frame 222. The vertical hydraulic cylinder 220 is fixedly installed on the outer wall of the dyeing vat 101 and is equipped with a vertical piston rod 2201. The vertical piston rod 2201 extends upward and is fixedly connected to the corresponding horizontal connecting rod 111. The longitudinal hydraulic cylinder 221 is fixedly installed on the outer wall of the dyeing vat 101 and is equipped with a longitudinal piston rod 2211. The longitudinal piston rod 2211 slides through the dyeing vat 101 and extends into the interior of the dyeing vat 101. A positioning seat 2212 is fixedly arranged at the end of the longitudinal piston rod 2211. The connecting frame 222 is fixedly connected to the upper spreading frame 210 and extends upward. The connecting frame 222 is fixedly provided with a vertical positioning rod 2221 that slides through the positioning seat 2212. A spring-back assembly is also arranged between the positioning seat 2212 and the dyeing vat 101. The lower end of the vertical hydraulic cylinder 220 is connected to the end of the longitudinal hydraulic cylinder 221 away from the positioning seat 2212 through a hydraulic pipe 2202;

[0049] As Figure 9 shown, the slide rod 201 can slide within the slideway 200. Since the slide rods 201 in the upper and lower slideways 200 are connected by the pull wires 202 on both sides to form an annular structure, and at the same time the upper spreading frame 210 and the lower spreading frame 211 are staggered, when the upper spreading frame 210 moves forward in the dyeing vat 101, it is pulled by the pull wires 202 on both sides, so that the lower spreading frame 211 can move backward in the dyeing vat 101; similarly, when the upper spreading frame 210 moves backward, the lower spreading frame 211 moves forward.

[0050] When each U-shaped bracket 110 moves up and down synchronously, the horizontal connecting rod 111 will also move up and down. When the horizontal connecting rod 111 moves upward, the vertical piston rod 2201 moves upward, and the spring-back assembly drives the longitudinal piston rod 2211 to retract into the longitudinal hydraulic cylinder 221. The hydraulic oil in the longitudinal hydraulic cylinder 221 enters the vertical hydraulic cylinder 220 through the hydraulic pipe 2202, and the vertical hydraulic cylinder 220 receives oil; when the horizontal connecting rod 111 moves downward, the vertical piston rod 2201 moves downward, and the hydraulic oil in the vertical hydraulic cylinder 220 enters the longitudinal hydraulic cylinder 221 through the hydraulic pipe 2202, so that the longitudinal piston rod 2211 extends out of the longitudinal hydraulic cylinder 221. In this way, when the U-shaped bracket 110 moves up and down, the longitudinal piston rod 2211 can extend and retract back and forth;

[0051] When the longitudinal piston rod 2211 extends and retracts, the positioning seat 2212 at the end of the longitudinal piston rod 2211 cooperates with the vertical positioning rod 2221 of the connecting frame 222, so that the upper spreading frame 210 can move back and forth. At the same time, vertical movement can occur between the vertical positioning rod 2221 and the positioning seat 2212, so as not to hinder the up and down movement of the upper spreading frame 210, the lower spreading frame 211, the first tension roller 112, and each U-shaped bracket 110.

[0052] In this way, through the reciprocating up and down movement of the U-shaped bracket 110, the upper spreading frame 210 and the lower spreading frame 211 can move back and forth, so as to spread the upper and lower surfaces of the fabric between the first tension rollers 112 on both sides respectively. Spreading can not only make the sizing slurry on the fabric surface evenly distributed to avoid color difference caused by local accumulation, but also unfold the fabric in the front and back directions to avoid curling and wrinkling of the fabric in the front and back directions.

[0053] As an explanation of the structure of the spring-back component in this embodiment, as Figure 6 shown, the spring-back component includes a longitudinal connecting rod 223 and a second spring 224. One end of the longitudinal connecting rod 223 is fixedly connected to the positioning seat 2212, and the other end of the longitudinal connecting rod 223 passes through the dyeing vat 101 and is fixedly connected to the outer wall of the dyeing vat 101 through the second spring 224.

[0054] When the longitudinal hydraulic rod 2211 extends, the longitudinal connecting rod 223 fixed to the positioning seat 2212 extends into the dyeing vat 101, so that the second spring 224 is in an elastically compressed state; when the longitudinal hydraulic rod 2211 retracts, the second spring 224 elastically rebounds, so that the longitudinal connecting rod 223 drives the positioning seat 2212 and the longitudinal hydraulic rod 2211 to return to their original positions.

[0055] As a further explanation of this embodiment, the upper spreading frame 210 and the lower spreading frame 211 include a plurality of spreading rods 212 arranged horizontally, and at least two spreading rods 212 are respectively located at both ends of the sliding rod 201. The maximum distance between adjacent two spreading rods 212 is not greater than the fully extended length of the longitudinal piston rod 2211. The dimensional difference between the sliding rod 201 and the slideway 200 is equal to the fully extended length of the longitudinal piston rod 2211. The staggered distance between the upper spreading frame 210 and the lower spreading frame 211 is equal to the fully extended length of the longitudinal piston rod 2211.

[0056] The purpose of defining such dimensional relationships is as follows:

[0057] ① The areas at both ends of the sliding rod 201 can be fully covered by the spreading rods 212 to cover the area of the first tension rollers 112;

[0058] ② During the extension and retraction of the longitudinal piston rod 2211, adjacent two spreading rods 212 can fully cover and spread;

[0059] ③ During the extension and retraction of the longitudinal piston rod 2211, the sliding rod 201 can reciprocate in the slideway 200, and at the same time, the upper spreading frame 210 and the lower spreading frame 211 can fully cover the area between the first tension rollers 112 on the upper and lower sides.

[0060] The above embodiments are only used to exemplarily illustrate the principles and effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A continuous cloth printing and dyeing machine, comprising a base and a dye vat, wherein the base is provided with a feed guide roller located above the feed side of the dye vat, and the base is provided with a discharge guide roller located above the discharge side of the dye vat, wherein: The front and rear ends of the dye vat feeding side and the discharging side are movably provided with U-shaped brackets, and the two sides of the U-shaped brackets extend downward along the inner wall and the outer wall of the dye vat to the bottom of the dye vat respectively, and the tops of the two U-shaped brackets at the front end and the tops of the two U-shaped brackets at the rear end are fixedly connected by a transverse connecting rod, and the inner lower ends of the two U-shaped brackets at the dye vat feeding side and the inner lower ends of the two U-shaped brackets at the dye vat discharging side are fixedly connected with two first tensioning rollers arranged side by side up and down; The front and rear ends of the feeding side and the discharging side of the dye vat are also provided with transverse guide rails, each of the transverse guide rails is slidably connected with a slide, the slide is elastically connected to the transverse guide rails through a first spring, a second tensioning roller is commonly provided between the two slides at the front and rear ends, the base is provided with a lifting mechanism, the lifting mechanism is transmission-connected to one of the U-shaped brackets, the cloth is sequentially passed around the feeding guide roller, the second tensioning roller and the first tensioning roller on the feeding side of the dye vat in an S shape, and sequentially passed around the first tensioning roller, the second tensioning roller and the discharging guide roller on the discharging side of the dye vat in an S shape; A spreading mechanism and a transmission mechanism are also provided between the dye vat and the first tensioning roller; A slideway is provided inside each of the first tensioning rollers, and a sliding rod is provided for sliding sleeves inside the slideway. The spreading mechanism comprises an upper spreading frame and a lower spreading frame, and two ends of the upper spreading frame are respectively fixedly connected to the sliding rods in the two first tensioning rollers located above, and two ends of the lower spreading frame are respectively fixedly connected to the sliding rods in the two first tensioning rollers located below, and the upper spreading frame and the lower spreading frame are staggered. Arc slideways are also provided inside the two U-shaped brackets corresponding to the two ends of the first tensioning roller, and pull wires are provided in the two arc slides. The upper and lower sliding rods are connected together by the pull wires on both sides to form an annular structure.

2. A continuous cloth printing and dyeing machine according to claim 1, characterized in that: The lifting mechanism includes a sliding cavity, a motor and a transmission block. The sliding cavity is fixedly installed on the base and corresponds to one of the U-shaped brackets. The transmission block is slidably connected to the sliding cavity and fixedly connected to the lower end of the outer side of the U-shaped bracket. The motor is fixedly installed on the top of the sliding cavity. A transmission screw is also rotatably connected inside the sliding cavity. The transmission screw passes through the transmission block and is threadedly connected to the transmission block. The output end of the motor is fixedly connected to the transmission screw.

3. A continuous cloth printing and dyeing machine according to claim 2, characterized in that: The inner bottom of each U-shaped bracket is commonly connected to a rectangular frame matching the dye vat, and a stirring mechanism is commonly arranged between the rectangular frame and the inner wall of the dye vat; The stirring mechanism includes a plurality of rotating rods, a plurality of transmission gears and a plurality of spur racks. Each of the rotating rods extends along the width direction of the rectangular frame and is equidistantly arranged along the length direction of the rectangular frame. Both ends of each of the rotating rods rotate and penetrate the rectangular frame. A plurality of stirring blades are processed on the side of each of the rotating rods. Both ends of each of the rotating rods are fixedly connected to the transmission gears. Each of the spur racks is installed on the inner wall of the dye vat and is respectively meshed and matched with each of the transmission gears.

4. A continuous cloth printing and dyeing machine according to claim 3, characterized in that: A reflux groove connected to the upper side of the dye vat is also provided between the two transverse guide rails on the dye vat feeding side and between the two transverse guide rails on the dye vat discharging side.

5. A continuous cloth printing and dyeing machine according to claim 4, characterized in that: The transmission mechanism includes a vertical hydraulic cylinder, a longitudinal hydraulic cylinder and a connecting frame. The vertical hydraulic cylinder is fixedly installed on the outer wall of the dye vat and is equipped with a vertical piston rod. The vertical piston rod extends upward and is fixedly connected to the corresponding transverse connecting rod. The longitudinal hydraulic cylinder is fixedly installed on the outer wall of the dye vat and is equipped with a longitudinal piston rod. The longitudinal piston rod slides through the dye vat and extends to the inside of the dye vat. A positioning seat is fixedly provided on the end of the longitudinal piston rod. The connecting frame is fixedly connected to the upper spreading frame and extends upward. The connecting frame is fixedly provided with a vertical positioning rod that slides through the positioning seat. A rebound assembly is also provided between the positioning seat and the dye vat. The lower end of the vertical hydraulic cylinder is connected to an end of the longitudinal hydraulic cylinder away from the positioning seat through a hydraulic pipe.

6. A continuous cloth printing and dyeing machine according to claim 5, characterized in that: The rebound assembly includes a longitudinal connecting rod and a second spring. One end of the longitudinal connecting rod is fixedly connected to the positioning seat, and the other end of the longitudinal connecting rod passes through the dye vat and is fixedly connected to the outer wall of the dye vat via the second spring.

7. A continuous cloth printing and dyeing machine according to claim 6, characterized in that: The upper paving frame and the lower paving frame include a plurality of transversely arranged paving rods and at least two of the paving rods are respectively located at both ends of the sliding rod, the maximum spacing between two adjacent paving rods is not greater than the fully extended length of the longitudinal piston rod, the size difference between the sliding rod and the slideway is equal to the fully extended length of the longitudinal piston rod, and the staggered distance between the upper paving frame and the lower paving frame is equal to the fully extended length of the longitudinal piston rod.

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