A type of dyeing machine

Abstract

This utility model relates to the field of fabric dyeing technology, and mainly to a dyeing machine. It includes a frame, and further includes: two dyeing rollers, arranged in the same direction and spaced apart on the frame, rotatably connected to the frame; a drive device for driving the two dyeing rollers to rotate in opposite directions; adjusting rollers, corresponding in number to the dyeing rollers, extending in the same direction as the dyeing rollers, movably and limitingly connected to the frame, located below the dyeing rollers; and a dyeing vat, located below the two dyeing rollers, for holding the dye liquor. Through the design of this utility model, when the fabric circulates on the two dyeing rollers, it can achieve cyclic dyeing by passing through the dyeing vat, reducing waste. By setting the adjusting rollers, the tension of the fabric can be controlled, ensuring that dyeing is carried out while the fabric is laid out flat, which is beneficial for ensuring the dyeing effect.

Description

Technical Field

[0001] This utility model relates to the field of fabric dyeing technology, and mainly to a roll dyeing machine. Background Technology

[0002] In the dye liquor circulation of fabric dyeing and finishing, traditional equipment suffers from an unreasonable dyeing vat layout. Fabric must travel a long path to reach the dye liquor, resulting in significant dye liquor loss and potential environmental pollution from splashing. Furthermore, dyeing vat drainage is often controlled by simple plug-in or basic valves, which are laborious to open when there is a large amount of dye liquor, difficult to clean after emptying, and prone to color bleeding in subsequent dyeing processes due to residual dye. This hinders efficient dye liquor circulation and reuse. Moreover, current traditional dyeing vats lack flexible tension control structures, relying heavily on fixed roller supports. When processing fabrics of different thicknesses, they cannot adapt to varying tension requirements, leading to fabric breakage, wrinkles, and frequent roller replacements, increasing costs and operational complexity, and failing to meet the demands of high-efficiency, high-quality production. Therefore, existing technologies require improvement and development. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a dyeing machine that aims to solve the problems of poor dye liquor circulation and inflexible tension control in existing traditional dyeing equipment.

[0004] The technical solution of this utility model is as follows: This utility model provides a dyeing machine, including a frame, wherein the machine further includes: Two dyeing rollers are arranged at intervals in the same direction on the frame and are rotatably connected to the frame. A driving device is used to drive the two dyeing rollers to rotate in opposite directions; Adjusting rollers, the number of which corresponds to the dyeing rollers, extend in the same direction as the dyeing rollers, are movably and limitably connected to the frame, and are located below the dyeing rollers; The dyeing vat, located below the two dyeing rollers, is used to hold the dye liquor.

[0005] As a further improvement to the above technical solution, the dyeing machine also includes: The number of connecting rods corresponds to the number of adjusting rollers. The adjusting rollers are connected to the frame via the connecting rods. Both ends of the adjusting rollers are rotatably connected to one end of the connecting rods, and the other end of the connecting rods is rotatably connected to the frame.

[0006] As a further improvement to the above technical solution, the connecting rod is inclined, and its direction corresponds to the rotation direction of the dyeing roller; The adjusting roller is rotatably connected to the upper end of the connecting rod.

[0007] As a further improvement to the above technical solution, the dyeing machine also includes: A spring, one end of which is connected to the frame and the other end of which is connected to the connecting rod. The connection point is located on the side close to the adjusting roller, and its vertical height is lower than the connection point between the spring and the frame.

[0008] As a further improvement to the above technical solution, a sliding groove is provided on the connecting rod; The dyeing machine also includes: A flattening rod is slidably mounted on the slide groove and extends in the same direction as the adjusting roller. The flattening rod has an arc-shaped protrusion in the middle that protrudes toward the middle of the fabric.

[0009] As a further improvement to the above technical solution, a drainage hole is provided at the bottom of the dyeing vat; The dyeing machine also includes: A drain valve, which matches the shape of the drain hole, is used to open or close the drain hole.

[0010] As a further improvement to the above technical solution, the dyeing machine also includes: A switch lever, the body of which is rotatably connected to the frame; A support rod is located below the drain valve, with one end fixedly connected to the drain valve and the other end rotatably connected to the end of the switch rod.

[0011] As a further improvement to the above technical solution, a grip groove is provided at the end of the switch rod away from the support rod.

[0012] Beneficial Effects: In this invention, two dyeing rollers are arranged in the same direction at intervals and driven to rotate in opposite directions by a drive device. With a suitable winding method, the fabric can continuously circulate on the two dyeing rollers. When the fabric passes through the dyeing vat, it can fully contact the dye liquor in the vat, ensuring the overall dyeing effect. An adjustable roller, movable and limited by a connection to the frame and located below the dyeing rollers, ensures the fabric's tension, guaranteeing dyeing while the fabric is flat and unfolded, thus contributing to a better dyeing result. By adjusting the position of the adjustable roller, the contact angle and wrapping range between the fabric and the dyeing rollers can be changed, adapting to the processing needs of fabrics of different thicknesses (such as thin silk and thick canvas), reducing equipment replacement costs and operational complexity. The dyeing vat is directly located below the two dyeing rollers, allowing the fabric to be directly immersed in the dye liquor and circulated after being drawn from the rollers, reducing dye liquor loss. Attached Figure Description

[0013] Figure 1 This is one of the structural schematic diagrams of the dyeing machine of this utility model.

[0014] Figure 2This is the second structural schematic diagram of the dyeing machine of this utility model.

[0015] Labeling Explanation: 100, Frame; 200, Dyeing Roller; 300, Drive Unit; 400, Adjusting Roller; 410, Connecting Rod; 411, Slide Groove; 420, Spring; 440, Flattening Rod; 441, Arc-shaped Protruding Rod; 500, Dyeing Vat; 600, Drain Valve; 610, Switch Rod; 611, Grip Groove; 620, Support Rod. Detailed Implementation

[0016] This utility model provides a dyeing machine. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following provides a more detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit this utility model.

[0017] Reference Figures 1-2 This utility model provides a dyeing machine, including a frame, wherein the machine further includes: Two dyeing rollers are set at intervals in the same direction on the frame and are rotatably connected to the frame. A drive unit is used to drive the two dyeing rollers to rotate in opposite directions. Adjusting rollers, the number of which corresponds to the dyeing rollers, extend in the same direction as the dyeing rollers, and are movable and limitedly connected to the frame, located below the dyeing rollers; The dyeing vat, located below the two dyeing rollers, is used to hold the dye liquor.

[0018] In this invention, two dyeing rollers are arranged in the same direction at intervals and driven to rotate in opposite directions by a drive device. With a suitable winding method, the fabric can continuously circulate on the two dyeing rollers. When the fabric passes through the dyeing vat, it can fully contact the dye liquor in the vat, ensuring the overall dyeing effect. An adjustable roller is movable and limited to the frame and located below the dyeing rollers. This ensures the tension of the fabric and guarantees that dyeing is carried out while the fabric is flat and unfolded, which is beneficial to ensuring the dyeing effect. By adjusting the position of the adjustable roller, the contact angle and wrapping range between the fabric and the dyeing rollers can be changed, thereby adapting to the processing needs of fabrics of different thicknesses (such as thin silk and thick canvas), reducing equipment replacement costs and operational complexity. The dyeing vat is directly located below the two dyeing rollers. After the fabric is drawn out from the dyeing rollers, it can be directly immersed in the dye liquor and circulated, reducing dye liquor loss. At the same time, the dyeing vat can stably hold the dye liquor, avoiding dye liquor splashing, ensuring a clean working environment, and facilitating subsequent recycling, filtration, and other secondary uses of the dye liquor, reducing raw material waste.

[0019] In one specific embodiment of this utility model, the dyeing machine further includes: The number of connecting rods corresponds to that of the adjusting rollers. The adjusting rollers are connected to the machine frame via the connecting rods. Both ends of the adjusting rollers are rotatably connected to one end of the connecting rods, and the other end of the connecting rods is rotatably connected to the machine frame.

[0020] In this invention, the adjusting roller is connected to the frame via a connecting rod. Both ends of the adjusting roller rotate with one end of the connecting rod, and the other end of the connecting rod rotates with the frame. The adjusting roller rotates as the fabric passes through, preventing jamming and protecting the fabric. Simultaneously, the rotation of the connecting rod and the frame allows the adjusting roller to move up and down, thereby more precisely adjusting the fabric's tension and contact state.

[0021] In one specific embodiment of this utility model, the connecting rod is inclined, and its direction corresponds to the rotation direction of the dyeing roller; The adjusting roller is rotatably connected to the upper end of the connecting rod.

[0022] The connecting rod's tilt direction corresponds to the dyeing roller's rotation direction, creating a "coordinated force" between the adjusting roller's supporting force on the fabric and the dyeing roller's traction force. For example, if the dyeing roller rotates clockwise to pull the fabric, the connecting rod tilts to the same side, and the adjusting roller can generate a reverse auxiliary tension on the fabric, counteracting the fabric's "deviation tendency" caused by traction. This ensures the fabric is always transported along the preset path, reducing dyeing deviations or equipment jamming caused by deviation. Furthermore, through its tilted design, the adjusting roller can apply tension to the fabric using its own weight.

[0023] In one specific embodiment of this utility model, the dyeing machine further includes: The spring has one end connected to the frame and the other end connected to the connecting rod. The connection point is located on the side close to the adjusting roller, and its vertical height is lower than the connection point between the spring and the frame.

[0024] In this invention, the height difference at the spring connection point ensures that the spring always exerts an upward pulling force on the connecting rod. When the fabric tension suddenly increases due to thickness fluctuations or changes in transmission speed, the spring is slightly stretched, buffering the tension impact through its elasticity and preventing the fabric from breaking due to the sudden increase in tension. When the tension decreases, the spring contracts and resets, pushing the adjusting roller back to the preset position, maintaining stable fabric tension. This eliminates the need for real-time manual monitoring and adjustment, improving the automation level of the equipment. The spring force can be preset according to the tension requirements of conventional fabrics. When processing different fabrics, only the initial position connected to the adjusting roller needs to be fine-tuned, and the spring can automatically adapt to tension changes. This eliminates the need for frequent manual adjustment of tension parameters, reducing the workload of operators and making it particularly suitable for batch continuous production scenarios, thus improving processing efficiency.

[0025] In one specific embodiment of this utility model, a sliding groove is provided on the connecting rod; The dyeing machine also includes: The flattening rod is slidably mounted on the slide groove and extends in the same direction as the adjusting roller. The middle part of the flattening rod is provided with an arc-shaped protrusion that protrudes towards the middle of the fabric.

[0026] In this invention, the flattening rod is slidably mounted on the groove, and its position can be adjusted according to the fabric width to ensure that the flattening range covers the entire width of the fabric. The arc-shaped protrusion in the middle of the flattening rod protrudes towards the center of the fabric. When the fabric passes through the flattening area, the arc-shaped protrusion can generate a gentle tension "from the center to both sides" on the fabric, opening up the fine wrinkles (such as horizontal wrinkles) on the fabric surface and avoiding uneven dyeing at the wrinkles. This is especially suitable for lightweight fabrics that are prone to wrinkling (such as silk and chiffon), and also helps to ensure the overall flatness of the fabric when it is rolled into the dyeing roller. At the same time, the arc-shaped protrusion of the rod is designed to be gentle, so as not to overstretch the fabric and avoid deformation and abnormal shrinkage caused by flattening, thus balancing the flattening effect and the fabric quality.

[0027] In one specific embodiment of this utility model, a drainage hole is provided at the bottom of the dyeing vat; The dyeing machine also includes: A drain valve, which matches the shape of a drain hole, is used to open or close the drain hole.

[0028] In this invention, a drain hole is provided at the bottom of the dyeing vat, which is opened or closed in conjunction with a drain valve. When it is necessary to change the dye solution (such as changing the color or the dye solution deteriorating), the residual liquid in the dyeing vat can be quickly drained by opening the drain valve, without the need for manual pouring, thus reducing operation time. After draining, clean water can also be injected into the dyeing vat through the drain hole for rinsing, making cleaning more convenient and avoiding the "color mixing" problem caused by mixing different batches of dye solution, thus ensuring the purity of dyeing.

[0029] In one specific embodiment of this utility model, the dyeing machine further includes: The switch lever is rotatably connected to the frame. The support rod is located below the drain valve, with one end fixedly connected to the drain valve and the other end rotatably connected to the end of the switch rod.

[0030] In this invention, the switch rod is rotatably connected to the frame, and one end of the support rod is fixed to the drain valve, while the other end is rotatably connected to the end of the switch rod, forming a "lever structure". The operator can move the support rod up and down by rotating the switch rod, thereby controlling the opening or closing of the drain valve. This leverage principle amplifies the operating force, eliminating the need to directly pull the drain valve (especially when there is a large amount of dye in the dyeing vat and the drain valve is under high pressure), significantly reducing the difficulty of operation.

[0031] In one specific embodiment of this utility model, a grip groove is provided at the end of the switch rod away from the support rod.

[0032] In this invention, the grip groove is located at the end of the switch rod away from the support rod, making it convenient for personnel to operate the switch rod to control the opening or closing of the drain valve.

[0033] The working principle of this dyeing machine is as follows: When the dyeing machine is working, a sufficient amount of dye liquor is first injected into the dyeing vat below the frame. Then, the fabric to be dyed is wound around two equally spaced dyeing rollers that are rotatably connected to the frame, according to a preset winding method. The drive device is started, which drives the two dyeing rollers to rotate in opposite directions. Under the traction force of the roller rotation, the fabric begins to continuously circulate and transfer between the two dyeing rollers. During transport, the fabric is drawn from the dyeing rollers and directly immersed into the dye bath, ensuring full contact and preventing splashing. This also provides a foundation for subsequent dye bath circulation and filtration for reuse. Adjusting rollers, corresponding to the number of dyeing rollers, are connected to the frame via connecting rods. Both ends of the adjusting rollers are rotatably connected to one end of the connecting rod, while the other end rotates with the frame. The connecting rods are angled, corresponding to the rotation direction of the dyeing rollers, with the adjusting rollers positioned at the upper end. This structure allows the adjusting rollers to rotate synchronously with the fabric transport, preventing jamming and damage. The rotation of the connecting rods and frame allows for vertical movement, adjusting the contact angle and wrapping area between the fabric and the dyeing rollers to accommodate fabrics of different thicknesses. Furthermore, the adjusting rollers apply tension to the fabric under their own weight, with their supporting force and the traction force of the dyeing rollers working synergistically to counteract fabric deviation and ensure a stable transport path. In addition, a spring is connected to the connecting rod. One end of the spring is connected to the frame, and the other end is connected to the connecting rod (the connection point is close to the adjusting roller and its vertical height is lower than the connection point of the frame). When the fabric tension increases suddenly due to thickness fluctuations or changes in transmission speed, the spring is slightly stretched to buffer the impact and prevent the fabric from breaking. When the tension decreases, the spring contracts and resets, pushing the adjusting roller back to the preset position to maintain stable tension without the need for manual real-time adjustment. The connecting rod is also equipped with a groove, in which a flattening rod is slidably installed. The extension direction of the flattening rod is consistent with that of the adjusting roller. The position of the flattening rod can be adjusted according to the width of the fabric to cover the entire width of the fabric. The arc-shaped protrusion in the middle of the flattening rod facing the middle of the fabric can generate a gentle tension from the middle to both sides when the fabric passes through, opening up the fine wrinkles and ensuring the flatness of the fabric during dyeing and when it is rolled into the dyeing roller. The gentle arc also prevents the fabric from being overstretched and deformed. When dyeing is complete or the dye solution needs to be changed, the operator holds the handle at the end of the switch lever furthest from the support rod and rotates the switch lever, which is rotatably connected to the frame. The switch lever is connected to the drain valve at the bottom of the dye tank via the support rod (one end of the support rod is fixed to the drain valve, and the other end is rotatably connected to the end of the switch lever, forming a lever structure). Using the lever principle, rotating the switch lever moves the support rod up and down, thereby controlling the opening or closing of the drain valve, which is shaped to match the drain hole. Opening the drain valve allows the residual dye solution in the dye tank to be quickly drained through the drain hole without manual emptying. After draining, clean water can be injected through the drain hole to rinse the dye tank, preventing color mixing between different batches of dye solution and ensuring the purity of subsequent dyeing.

[0034] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of this utility model.

Claims

1. A jigging machine comprising a frame (100), characterized in that, Also includes: Two dyeing rollers (200) are arranged at intervals in the same direction on the frame (100) and are rotatably connected to the frame (100); A drive unit (300) is used to drive the two dyeing rollers (200) to rotate in opposite directions; Adjusting rollers (400), the number of which corresponds to the dyeing rollers (200), the extension direction of which is the same as that of the dyeing rollers (200), are movably and limitedly connected to the frame (100), and are located below the dyeing rollers (200); The dyeing vat (500), located below the two dyeing rollers (200), is used to hold the dye liquor.

2. The dyeing machine according to claim 1, characterized in that, The dyeing machine also includes: The number of connecting rods (410) corresponds to the number of adjusting rollers (400). The adjusting rollers (400) are connected to the frame (100) through the connecting rods (410). The two ends of the adjusting rollers (400) are rotatably connected to one end of the connecting rods (410), and the other end of the connecting rods (410) is rotatably connected to the frame (100).

3. The dyeing machine according to claim 2, characterized in that, The connecting rod (410) is inclined and its direction corresponds to the rotation direction of the dyeing roller (200); The adjusting roller (400) is rotatably connected to the upper end of the connecting rod (410).

4. The dyeing machine according to claim 3, characterized in that, The dyeing machine also includes: A spring (420) is connected at one end to the frame (100) and at the other end to the connecting rod (410). The connection point is located on the side close to the adjusting roller (400) and its vertical height is lower than the connection point between the spring (420) and the frame (100).

5. The dyeing machine according to claim 4, characterized in that, The connecting rod (410) is provided with a sliding groove (411). The dyeing machine also includes: A flattening rod (440) is slidably disposed on the slide groove (411) and extends in the same direction as the adjusting roller (400). The flattening rod (440) has an arc-shaped protrusion (441) protruding towards the middle of the fabric in the middle part.

6. The dyeing machine according to claim 1, characterized in that, The dyeing vat (500) is provided with a drainage hole at the bottom; The dyeing machine also includes: A drain valve (600) is shaped to fit the drain hole and is used to open or close the drain hole.

7. The dyeing machine according to claim 6, characterized in that, The dyeing machine also includes: A switch rod (610), the body of which is rotatably connected to the frame (100); The support rod (620) is located below the drain valve (600), with one end fixedly connected to the drain valve (600) and the other end rotatably connected to the end of the switch rod (610).

8. The dyeing machine according to claim 7, characterized in that, A grip groove (611) is provided at one end of the switch rod (610) away from the support rod (620).

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