Automatic feeding device for cloth printing and dyeing

Abstract

The utility model discloses a cloth printing and dyeing is with automatic feeding device relates to feeding device technical field, the utility model discloses a main body structure, including base, the hollow feeding roller of being located the inside of base top, the support shaft of being located the tubular of feeding roller one end, the structure of giving material, including stroke plate, motor no.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, and in particular to an automatic feeding device for fabric printing and dyeing. Background Technology

[0002] Fabric refers to sheet-like fiber products made from natural or chemical fibers through processes such as spinning, weaving, and non-woven fabrics. During processing, chemical or physical methods are used to attach dyes, pigments, and auxiliaries to the fabric fibers to achieve color, patterns, or functions. Dyeing and printing are key links in the textile industry chain.

[0003] In automatic fabric feeding devices for printing and dyeing, the feeding roller is the core feeding component. Fabric is typically in the form of a roll—a cylindrical roll of fabric wound around a paper or plastic core tube—placed on a feeding rack. The feeding roller, controlled by friction or tension, uniformly transports the fabric from the roll to the printing and dyeing process. When a roll of fabric is used up, it needs to be replaced. In printing and dyeing production, to reduce the frequency of roll replacement and improve production efficiency, companies often use large-sized rolls, far exceeding the safety threshold for manual handling. It is impossible to lift the roll to the height of the feeding roller support shaft on the feeding rack manually. During hoisting, inertia easily causes swaying, requiring repeated manual adjustments to insert the roll into the outer wall of the feeding roller, resulting in extremely low feeding efficiency. Therefore, those skilled in the art have provided an automatic feeding device for fabric printing and dyeing to solve the problems mentioned in the background art. Utility Model Content

[0004] 1. Technical Solution

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an automatic feeding device for fabric printing and dyeing, comprising,

[0007] The main structure includes a base, a hollow feeding roller located above the base, and a tubular support shaft located at one end of the feeding roller;

[0008] The feeding structure includes a stroke plate, a motor located at the upper end of the stroke plate, a drive wheel located at the output end of the motor, a driven wheel located on the outer wall of the support shaft, a belt sleeved on the outer wall of the driven wheel and the drive wheel, side grooves arranged in a ring array on the outer wall of the feeding roller, a tension plate located inside the side grooves, a spring located at the lower end of the tension plate, and a support block located at the lower end of the spring and connected to the inner wall of the drum.

[0009] as well as;

[0010] The replacement structure includes a second motor located at the top of the base, a screw hole inside the second motor, and a screw located at the top of the second motor and threaded into the screw hole.

[0011] Furthermore, a protective box located on the upper end of the base is sleeved on the outer side of the travel plate, a control box is provided at one end of the protective box, and an inspection door is provided at the front end of the protective box;

[0012] Specifically, the control box integrates a PLC to precisely control parameters and control electrical equipment. The internal parts of the protective box can be maintained through the inspection door, and the protective box provides physical protection.

[0013] Furthermore, a bearing seat is provided at the upper end of the stroke plate, and one end of the support shaft is rotatably mounted inside the bearing seat;

[0014] Specifically, the bearing housing supports the bearing shaft and provides rotational support for the feed roller.

[0015] Furthermore, the upper end of the support block is provided with a positioning cylinder located inside the spring, and a positioning rod connected to the tensioning plate is slidably inserted into the upper end of the positioning cylinder;

[0016] Specifically, the support block supports the spring and the positioning cylinder, and the positioning rod guides the tensioning plate to move, ensuring the stable movement of the tensioning plate and preventing the spring from shifting during the extension and contraction process.

[0017] Furthermore, the tensioning plate has a conical block on its inner wall, the feeding roller has a conical valve inside, the outer wall of the conical valve has balls arranged in a ring array corresponding to the conical plate, one end of the conical valve has a stroke port, a sliding sleeve is embedded inside the stroke port, and a guide rod connected at one end to the inner wall of the feeding roller is slidably inserted inside the sliding sleeve.

[0018] Specifically, the cone block receives lateral sliding support by sliding on the outer wall of the guide rod through the sliding sleeve, and the ball bearings reduce the friction and resistance when the cone block contacts the cone valve.

[0019] Furthermore, a hydraulic rod is provided at the upper end of the stroke plate, and a telescopic rod is provided at the telescopic end of the hydraulic rod located at the center of the support shaft and connected to the cone valve. Stroke grooves are provided inside both ends of the protective box, and the hydraulic rod and the support shaft are both located inside the stroke grooves.

[0020] Specifically, the hydraulic rod drives the telescopic end to move at the center of the support shaft without interfering with the central shaft, while the stroke groove provides space for the longitudinal movement of the hydraulic rod and the support shaft.

[0021] Furthermore, a limit ring is provided at the upper end of the screw, one end of the feeding roller faces a cone with a gradually decreasing outer diameter, a symmetrically distributed guide rail is provided at the upper end of the base, and sliding grooves are provided at both the front and rear ends of the stroke plate. The sliding grooves are slidably installed on the outer wall of the guide rail, and an electromagnetic brake is sleeved on the outer wall of the second output end of the motor.

[0022] Specifically, the limit ring prevents the screw hole from disengaging from the screw rod, the travel plate slides on the outer wall of the guide rail through the slide groove, and the travel plate is longitudinally guided. After the second output end of the motor stops running, it is locked by the electromagnetic brake.

[0023] 2. Beneficial effects

[0024] Compared with existing technologies, the advantages of this utility model are:

[0025] In this invention, the feed roller is hollow inside, with tension plates arranged in a circular array and moving synchronously inside. A roll containing fabric is installed on the outer wall of the feed roller, and the tension plates support the inner wall of the roll. This design can accommodate the support of rolls within a certain radius. After the roll containing fabric is fitted onto the feed roller, the fabric is conveyed by the rotation of the feed roller and the traction structure of the production line. After the fabric rolled on the outer wall of the roll is used up, the tension plates inside the roll retract synchronously inward, making the roll loose and easy to remove.

[0026] Meanwhile, the feed roller is height adjustable. One end of the feed roller is tapered and open, supported by a single-axis support tube. It can be used for manual or small lifting equipment operation of small drums, as well as for lifting needs of large equipment such as forklifts and electric hoists for large drums. There is no need to frequently adjust the lifting height of the lifting equipment. The drum and the support shaft can be accurately aligned simply by adjusting the height of the feed roller. For lifting equipment that is far away from the feed roller, it is more convenient to adjust the feed roller located near the drum.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the main sectional three-dimensional structure of this utility model;

[0030] Figure 2 This is a side view of the first angle of the three-dimensional structure of this utility model;

[0031] Figure 3 This is a side view of the second angle of the three-dimensional structure of this utility model;

[0032] Figure 4 This is a three-dimensional view of one side of the motor of this utility model;

[0033] Figure 5 This is a front-view three-dimensional structural diagram of the cone valve of this utility model;

[0034] Figure 6 This is a three-dimensional cross-sectional view of the feed roller of this utility model.

[0035] Figure 7 This is a three-dimensional cross-sectional view of the cone valve of this utility model.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 100. Main structure; 101. Base; 102. Protective box; 103. Inspection door; 104. Feed roller; 105. Stroke groove; 106. Control box; 107. Support shaft;

[0038] 200. Feeding structure; 201. Stroke port; 202. Motor 1; 203. Drive wheel; 204. Driven wheel; 205. Belt; 206. Bearing housing; 207. Hydraulic rod; 208. Spring; 209. Cone valve; 210. Ball bearing; 211. Side groove; 212. Guide rod; 213. Cone head; 214. Tensioning plate; 215. Cone block; 216. Telescopic rod; 217. Sliding sleeve; 218. Positioning cylinder; 219. Support block; 220. Positioning rod; 221. Stroke plate;

[0039] 300. Replacement structure; 301. Motor II; 302. Electromagnetic brake; 302. Slide groove; 304. Screw hole; 305. Screw; 306. Guide rail. Detailed Implementation

[0040] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0044] Example 1

[0045] Please see Figures 1-7 As shown, this embodiment is an automatic feeding device for fabric printing and dyeing, including,

[0046] The main structure 100 includes a base 101, a hollow feeding roller 104 located above the base 101, and a tubular support shaft 107 located at one end of the feeding roller 104.

[0047] A protective box 102 located on the upper end of the base 101 is sleeved on the outside of the travel plate 221. A control box 106 is provided at one end of the protective box 102, and an inspection door 103 is provided at the front end of the protective box 102.

[0048] One end of the feed roller 104 faces a cone 213 whose outer diameter gradually decreases to one side.

[0049] The feeding structure 200 includes a stroke plate 221, a motor 202 located at the upper end of the stroke plate 221, a drive wheel 203 located at the output end of the motor 202, a driven wheel 204 located on the outer wall of the support shaft 107, a belt 205 sleeved on the outer wall of the driven wheel 204 and the drive wheel 203, a side groove 211 formed in a ring array on the outer wall of the feeding roller 104, a tension plate 214 located inside the side groove 211, a spring 208 located at the lower end of the tension plate 214, and a support block 219 located at the lower end of the spring 208 and connected to the inner wall of the drum.

[0050] A bearing seat 206 is provided on the upper end of the stroke plate 221, and one end of the support shaft 107 is rotatably installed inside the bearing seat 206.

[0051] The upper end of the support block 219 is provided with a positioning cylinder 218 located inside the spring 208, and the upper end of the positioning cylinder 218 is slidably inserted with a positioning rod 220 connected to the tension plate 214.

[0052] The inner wall of the tensioning plate 214 is provided with a cone block 215, and the inside of the feeding roller 104 is provided with a cone valve 209. The outer wall of the cone valve 209 is rotatably mounted with balls 210 arranged in a ring array and corresponding to the cone plate. One end of the cone valve 209 has a stroke port 201. A sliding sleeve 217 is embedded in the stroke port 201. A guide rod 212 is slidably inserted into the sliding sleeve 217, with one end connected to the inner wall of the feeding roller 104.

[0053] A hydraulic rod 207 is provided at the upper end of the stroke plate 221. The telescopic end of the hydraulic rod 207 is provided with a telescopic rod 216 located at the center of the support shaft 107 and connected to the cone valve 209. Both ends of the protective box 102 are provided with stroke grooves 105. The hydraulic rod 207 and the support shaft 107 are both located inside the stroke grooves 105.

[0054] as well as;

[0055] The replacement structure 300 includes a second motor 301 located at the upper end of the base 101, a screw hole 304 opened inside the second motor 301, and a screw 305 located at the upper end of the second motor 301 and threaded into the screw hole 304.

[0056] A limit ring is provided at the upper end of the screw 305, and symmetrically distributed guide rails 306 are provided at the upper end of the base 101. Slide grooves 303 are provided at both the front and rear ends of the stroke plate 221. The slide grooves 303 are slidably installed on the outer wall of the guide rails 306. An electromagnetic brake 302 is sleeved on the outer wall of the output end of the motor 2 301.

[0057] Use the feeding structure 200 and the replacement structure 300;

[0058] Fabric refers to sheet-like fiber products made from natural or chemical fibers through processes such as spinning, weaving, and non-woven fabrics. During processing, chemical or physical methods are used to attach dyes, pigments, and auxiliaries to the fabric fibers to achieve color, patterns, or functions. Dyeing and printing are key links in the textile industry chain.

[0059] In the automatic feeding device for fabric printing and dyeing, the feeding roller 104 is the core feeding component. The fabric is usually in the form of a roll, that is, a cylindrical roll of fabric wound on a paper or plastic core tube, which is placed on the feeding frame. The feeding roller 104 controls the friction or tension to uniformly transport the fabric on the roll to the printing and dyeing process. When a roll of fabric is used up, the roll needs to be replaced. In printing and dyeing production, in order to reduce the frequency of roll replacement and improve production efficiency, enterprises often use large-size rolls, which far exceed the safety threshold for manual handling. It is impossible to lift the roll to the height of the support shaft 107 of the feeding frame by manpower alone. During hoisting, it is easy to sway due to inertia. The support shaft 107 can only be inserted into the core tube by repeated manual adjustment of the roll position, resulting in extremely low feeding efficiency.

[0060] The inspection door 103 is made of the same material as the protective box 102. A transparent polycarbonate observation window can be embedded in the middle of the door panel to observe the operating status of the internal components in real time. The main output power of motor 202 is used for the rotation of the feed roller. Motor 301 is used in stages and does not require an additional heat dissipation structure. In hotter environments, heat dissipation structures can be added as needed, such as opening a heat dissipation window in the protective box 102 and using a Tianji heat dissipation fan. The connection between the inspection door 103 and the protective box 102 is made of hinges and a snap lock. The snap lock is made of nylon and can be opened quickly without tools. When the internal components malfunction, such as the belt 205 breaking or the wiring of motor 202 becoming loose, it is not necessary to disassemble the entire protective box 102. Only the inspection door 103 needs to be opened for operation.

[0061] Bearing housing 206 is made of gray cast iron HT200, which has excellent rigidity and shock absorption. The surface is aged to avoid deformation caused by long-term load. The cast steel material is suitable for heavy load scenarios and can withstand radial forces of more than 3000N transmitted by the support shaft 107. A deep groove ball bearing is installed inside the bearing housing 206. The inner ring of the bearing is interference-fitted with the support shaft 107, and the outer ring is transition-fitted with the bearing housing 206. The bearing is filled with high-temperature lithium-based grease to reduce bearing rotation friction.

[0062] The support block 219 is made of Q235 steel plate. Q235 steel plate has high rigidity, suitable for supporting the large-force spring 208. The connection between the support block 219 and the inner wall of the feeding roller 104 is welded, which can withstand the reaction force of the spring 208. The positioning cylinder 218 is made of brass and has self-lubricating properties, reducing the resistance when the positioning rod 220 slides. The connection between the positioning cylinder 218 and the support block 219 is an interference fit with spot welding. The connection between the positioning rod 220 and the tensioning plate 214 is a threaded connection with a lock nut. One end of the positioning rod 220 has an M8 thread that mates with the threaded hole of the tensioning plate 214 and is locked with a nylon lock nut. The tensioning plate 214 needs to move synchronously in a circular array to evenly support the inner wall of the drum. The positioning rod 220 and... The sliding engagement of the positioning cylinder 218 helps the tensioning plate 214 to automatically reset after being squeezed, avoiding unstable drum support caused by the height difference of the tensioning plate 214. The positioning cylinder 218 is fitted inside the spring 208, which can prevent the spring 208 from twisting and deforming when it is compressed and extended. The sliding stroke of the positioning rod 220 matches the effective compression stroke of the spring 208, ensuring that the moving distance of the tensioning plate 214 is accurate and controllable. The guiding effect of the positioning rod 220 and the positioning cylinder 218 can prevent the tensioning plate 214 from rubbing against the side groove 211 of the feeding roller 104, extending the service life of the tensioning plate 214. The positioning cylinder 218 and the positioning rod 220 ensure that the tensioning plate 214 moves synchronously and the inner wall of the drum is evenly stressed, avoiding axial movement of the large drum due to unstable support.

[0063] The cone block 215 is made of high-strength engineering plastic PA66 reinforced with glass fiber, possessing high rigidity and wear resistance. It can stably cooperate with the cone valve 209, avoiding wear and abnormal noise caused by metal-to-metal contact. The main body of the cone valve 209 is ductile iron with a nitrided surface, making it wear-resistant and deformation-resistant. It is suitable for frequent axial movement inside the feed roller 104. When the cone valve 209 moves axially along the guide rod 212, the conical surface of the cone valve 209 cooperates with the inclined surface of the cone block 215 on the inner wall of the tensioning plate 214. Utilizing the mechanical principle of the inclined surface, the axial displacement of the cone valve 209 is converted into the radial synchronous expansion and contraction of the tensioning plate 214. The sliding sleeve 217 is made of tin bronze. The material has good self-lubricating and wear-resistant properties, and can work stably for a long time without additional lubrication. The guide rod 212 is made of 45 steel with heat treatment, which is rust-proof and reduces frictional resistance. It provides a precise axial movement track for the cone valve 209, ensuring that the cone valve 209 has no radial offset when it moves. It ensures the stability of the fit between the cone block 215 and the inclined surface of the cone valve 209, and avoids the tension plate 214 from jamming due to guide deviation. One end of the guide rod 212 is fixed to the inner wall of the feed roller 104, which can withstand the axial force when the cone valve 209 moves and transmit the force to the overall structure of the feed roller 104, avoiding local stress concentration that could cause deformation of the feed roller 104.

[0064] Hydraulic rod 207 is a double-acting hydraulic cylinder, and telescopic rod 216 is made of high-strength aluminum alloy 6061-T6. Its high strength allows for stable transmission of the push-pull force of hydraulic rod 207 at the center of support shaft 107. Furthermore, the corrosion resistance of aluminum alloy is suitable for the humid environment of the printing and dyeing workshop. Adjusting the extension and retraction of telescopic rod 216 via hydraulic rod 207 drives telescopic rod 216 to push and pull cone valve 209 along the axial direction of guide rod 212. The stroke grooves 105 at both ends of the protective box 102 provide axial movement tracks for hydraulic rod 207 and support shaft 107, limiting their movement. The ring is made of Nylon 66 and is fixed to the upper end of the screw 305 by a set screw. This can prevent the metal limiting ring from hard collision with the cone 213 of the feed roller 104 and protect the cone 213 and the core tube of the drum. The cone 213 of the feed roller 104 is made of 45 steel with heat treatment and surface phosphate. The cone 213 at one end of the feed roller 104 can achieve self-guidance during drum hoisting. Even if there is a deviation in hoisting, the inclined surface of the cone 213 can guide the core tube of the drum to automatically align with the center of the feed roller 104, solving the problems of difficult and time-consuming traditional manual alignment.

[0065] The base 101 is made of Q235 low carbon steel plate and welded as a whole. The drive wheel 203 and driven wheel 204 are made of polyurethane injection molding material. The wheel surface has anti-slip texture with a texture depth of 1mm, which replaces the problem of easy wear and slippage of traditional rubber wheels. The wheel core is made of 45 steel and is interference-fitted with the output shaft of motor 202 and support shaft 107. The belt 205 is a neoprene rubber synchronous belt with 50-100 teeth and a pitch of 5mm. It avoids the disadvantages of traditional V-belts that are easy to slip and require frequent tightening. It provides reliable support for the continuous and high-quality operation of the printing and dyeing production line.

[0066] The operator sends a signal to the second motor 301 through the control box 106. The second motor 301 drives the trapezoidal threaded screw 305 to rotate. The screw 305 engages with the screw hole 304 of the copper nut in the stroke plate 221, converting the rotational motion into the axial lifting and lowering of the stroke plate 221. This, in turn, drives the feeding roller 104 on the stroke plate 221 to lift and lower synchronously until the height of the feeding roller 104 is aligned with the height of the drum of the hoisting equipment. The hoisting equipment then lifts the large drum to the front of the feeding roller 104. The cone 213 at one end of the feeding roller 104 acts as a self-guided guide, and the drum core tube will automatically slide along the inclined surface of the cone 213 towards the outer wall of the feeding roller 104. At the same time, the support shaft 107 provides stable support for the feeding roller 104, preventing the feeding roller 104 from shifting due to hoisting impact, and ensuring that the drum smoothly fits into the outer wall of the feeding roller 104.

[0067] After the drum is inserted, the control box 106 sends a signal to the hydraulic rod 207. The telescopic end of the hydraulic rod 207 pushes the telescopic rod 216 to move along the center hole of the support shaft 107. The end of the telescopic rod 216 is connected to the cone valve 209, which drives the cone valve 209 to move axially along the guide rod 212. The cone surface of the cone valve 209 fits against the inclined surface of the cone block 215 on the inner wall of the tensioning plate 214, converting the axial displacement of the cone valve 209 into multiple sets of tensioning plates 214 expanding radially synchronously along the side groove 211 of the feed roller 104. At the same time, the positioning cylinder 218 and the positioning rod 220 restrict the tensioning plate 214 to move only axially, avoiding radial offset, and tightly fitting the inner wall of the drum core tube to achieve uniform support.

[0068] According to the requirements of subsequent printing and dyeing processes, the control box 106 adjusts the speed of the feeding motor 202. The output end of the motor 202 drives the drive wheel 203 to rotate. The drive wheel 203 drives the driven wheel 204 to rotate through the belt 205. The driven wheel 204 is interference-fitted with the support shaft 107, which in turn drives the feeding roller 104 fixed at the other end of the support shaft 107 to rotate synchronously. The feeding roller 104 drives the roll to rotate at a uniform speed with the feeding roller 104 through the friction between the tension plate 214 and the roll. The fabric is released from the surface of the roll and conveyed to the subsequent printing and dyeing equipment. The feeding efficiency of the large roll is improved. The servo motor 202 drives the screw 305 to adjust the height of the feeding roller 104. With the self-guiding of the cone head 213, the feeding time is shortened. The cost of adapting to multiple specifications of rolls is reduced. The annular tension plate 214 is adjusted synchronously to adapt to rolls with a certain range of diameters, improving the adaptability.

[0069] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic feeding device for fabric printing and dyeing, characterized in that: include, The main structure (100) includes a base (101), a hollow feeding roller (104) located above the base (101), and a tubular support shaft (107) located at one end of the feeding roller (104). The feeding structure (200) includes a stroke plate (221), a motor (202) located at the upper end of the stroke plate (221), a drive wheel (203) located at the output end of the motor (202), a driven wheel (204) located on the outer wall of the support shaft (107), a belt (205) sleeved on the outer wall of the driven wheel (204) and the drive wheel (203), a side groove (211) arranged in a ring array on the outer wall of the feeding roller (104), a tension plate (214) located inside the side groove (211), a spring (208) located at the lower end of the tension plate (214), and a support block (219) located at the lower end of the spring (208) and connected to the inner wall of the drum. as well as; The replacement structure (300) includes a second motor (301) located at the upper end of the base (101), a screw hole (304) opened inside the second motor (301), and a screw (305) located at the upper end of the second motor (301) and threaded into the screw hole (304).

2. The automatic feeding device for fabric printing and dyeing according to claim 1, characterized in that: The travel plate (221) is sleeved with a protective box (102) located on the upper end of the base (101). A control box (106) is provided at one end of the protective box (102), and an inspection door (103) is provided at the front end of the protective box (102).

3. The automatic feeding device for fabric printing and dyeing according to claim 1, characterized in that: The upper end of the travel plate (221) is provided with a bearing seat (206), and one end of the support shaft (107) is rotatably installed inside the bearing seat (206).

4. The automatic feeding device for fabric printing and dyeing according to claim 1, characterized in that: The upper end of the support block (219) is provided with a positioning cylinder (218) located inside the spring (208), and the upper end of the positioning cylinder (218) is slidably inserted with a positioning rod (220) connected to the tension plate (214).

5. An automatic feeding device for fabric printing and dyeing according to claim 2, characterized in that: The tensioning plate (214) has a cone block (215) on its inner wall, and a cone valve (209) is provided inside the feeding roller (104). The outer wall of the cone valve (209) is rotatably equipped with balls (210) arranged in a ring array and corresponding to the cone plate. One end of the cone valve (209) has a stroke port (201) inside, and a sliding sleeve (217) is embedded inside the stroke port (201). A guide rod (212) is slidably inserted inside the sliding sleeve (217) with one end connected to the inner wall of the feeding roller (104).

6. The automatic feeding device for fabric printing and dyeing according to claim 5, characterized in that: The upper end of the travel plate (221) is provided with a hydraulic rod (207), and the telescopic end of the hydraulic rod (207) is provided with a telescopic rod (216) located at the center of the support shaft (107) and connected to the cone valve (209). Both ends of the protective box (102) are provided with travel grooves (105), and the hydraulic rod (207) and the support shaft (107) are both located inside the travel grooves (105).

7. An automatic feeding device for fabric printing and dyeing according to claim 1, characterized in that: The upper end of the screw (305) is provided with a limit ring, one end of the feeding roller (104) faces a cone (213) with a gradually decreasing outer diameter, the upper end of the base (101) is provided with symmetrically distributed guide rails (306), the front and rear ends of the stroke plate (221) are provided with sliding grooves (303), the sliding grooves (303) are slidably installed on the outer wall of the guide rails (306), and the outer wall of the output end of the motor (301) is sleeved with an electromagnetic brake (302).

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