Fabric coating and dyeing conveyor and coating and dyeing method

Abstract

The present application relates to a kind of fabric coating dye conveying device, be provided in coating container, including staggered transmission printing and dyeing roller group, pressure roller is located above transmission printing and dyeing roller group, the transmission printing and dyeing roller group includes: support roller, fixedly arranged in the bottom of coating container, extrusion roller, staggered and arranged above support roller, and can be relatively displaced between support roller, suction coating roller, using composite layer roller, fall between adjacent extrusion roller;To be coated with dyeing grey cloth falls above suction coating roller, pressure roller is pressed to suction coating roller, the extrusion roller is set several, middle position extrusion roller and support seat as the reference roller of transmission printing and dyeing roller group, the extrusion roller at the end along the advancing direction of grey cloth is power roller, power source group is configured, drives power roller displacement.

Description

Technical Field

[0001] This invention relates to the field of fabric printing and dyeing technology, and in particular to a fabric coating and conveying device and method. Background Technology

[0002] During the dyeing process of the fabric, the lower part of the roller needs to be immersed in the coating. The roller rotates, causing the coating to be applied to the fabric.

[0003] The commonly used method of installing rollers is to fix them on an external frame, but this method has certain limitations. For example, during long-term dyeing, the paint level drops; after manual addition of paint, the paint level rises again; or when changing to different types or viscosities of paint, the immersion depth should theoretically be adjusted, but rollers with a fixed vertical height are difficult to meet this processing requirement, thus affecting the consistency of the semi-finished fabric. Summary of the Invention

[0004] In response to the shortcomings of the existing production technology, the applicant provides a fabric coating and conveying device and method with a reasonable structure, which has the functions of automatically adjusting the immersion depth of the roller in the coating and fine-tuning the horizontal direction of travel, so as to adapt to various coatings and the gradually decreasing liquid level during the production process.

[0005] The technical solution adopted in this invention is as follows:

[0006] A fabric coating and conveying device, disposed in a coating container, includes staggered drive printing and dyeing rollers and a pressure roller located above the drive printing and dyeing rollers.

[0007] The transmission dyeing roller assembly includes:

[0008] The support roller is fixedly installed at the bottom of the paint container.

[0009] The extrusion rollers are staggered above the support rollers and are capable of relative displacement with respect to the support rollers.

[0010] The suction coating roller, a composite layer roller, rests between adjacent extrusion rollers; the fabric to be coated rests above the suction coating roller, and a pressure roller applies pressure to it.

[0011] The extrusion rollers are arranged in several parts. The extrusion roller and support base in the middle position serve as the reference roller for the transmission printing and dyeing roller group. The extrusion rollers at both ends along the forward direction of the fabric are power rollers and are equipped with power source groups to drive the power rollers to move.

[0012] As a further improvement to the above technical solution:

[0013] The displacement of the power roller and the displacement of the pressure roller are synchronized.

[0014] The power source assembly includes a first power source that drives the power roller to move in the horizontal direction and a longitudinal adjustment component that drives the first power source to move in the vertical direction;

[0015] The longitudinal adjustment component adopts an active power device or a driven transmission structure.

[0016] The longitudinal adjustment component uses a cylinder or a lead screw.

[0017] The roller shafts of the power roller and the coating roller rest on an external frame, which is provided with an inclined channel to accommodate the movement of the roller shafts.

[0018] All the suction coating rollers are located in the same horizontal plane.

[0019] The diameter of the extrusion roller is larger than the diameter of the coating roller.

[0020] The coating roller is always in contact with the coating in the coating container.

[0021] A dyeing and conveying method using a fabric dyeing and conveying device includes the following steps:

[0022] Preparation phase:

[0023] Pre-adjust the transmission printing and dyeing roller group, using the support wheel as a reference, and adjust the extrusion rollers to be in the same horizontal plane;

[0024] Pour paint into the paint container and determine the depth to which the coating roller needs to be immersed in the paint, based on the type and viscosity of the paint.

[0025] The power source unit drives the extrusion rollers to move upwards or downwards. During this process, the extrusion roller and support roller in the middle position remain stationary, while the coating roller adjusts up and down slightly with the movement of the extrusion rollers on both sides until the immersion depth reaches the desired purpose.

[0026] Equipment operation phase:

[0027] The fabric passes between the suction coating roller and the pressure roller, and is pressed horizontally down until it contacts the suction coating roller. At this time, the fabric moves forward and pulls the suction coating roller to rotate.

[0028] The pressure roller presses down onto the fabric to ensure that the stress is equal at all points of contact between the fabric and the coating roller.

[0029] During the paint consumption process, the liquid level drops. The liquid level sensor detects the change in liquid level and controls the power source group to drive the extrusion roller to gradually descend, maintaining the paint immersion depth and the water-oil coating ratio.

[0030] As a further improvement to the above technical solution:

[0031] The power source unit drives the extrusion roller to move, and the movement is adjusted by descending a specified distance in single-segment time intervals.

[0032] The beneficial effects of this invention are as follows:

[0033] This invention features a compact and rational structure, is easy to operate, and does not require a motor. It replaces traditional electric rollers by using fabric conveying and pulling rollers. Electrically driven rollers may cause inconsistencies between the fabric conveying speed and the roller transmission speed, affecting printing quality.

[0034] The roller of this invention adopts a multi-layer composite structure, which reduces its own weight while giving the roller a certain elastic deformation capability and surface roughness. When in contact with the fabric, it can be pulled at the same speed as the fabric and can carry out stable coating and dyeing operations, ensuring the qualification rate of the coated and dyed products.

[0035] The roller of this invention adopts a multi-layer composite structure, which reduces its own weight while giving the roller a certain elastic deformation capability and surface roughness. When in contact with the fabric, it can be pulled at the same speed as the fabric and can carry out stable coating and dyeing operations, ensuring the qualification rate of the coated and dyed products. Attached Figure Description

[0036] Figure 1 This is a flowchart of the present invention.

[0037] Figure 2 This is a schematic diagram of the device structure of the present invention.

[0038] Figure 3 This is a schematic diagram of the cross-sectional structure of the suction coating roller in this invention.

[0039] The components include: 1. paint container; 2. support roller; 3. extrusion roller; 4. suction coating roller; 5. pressure roller; 6. cylinder; 7. primary power source; 8. longitudinal adjustment component; and 9. fabric.

[0040] 401. Support layer; 402. Flexible joint layer; 403. Absorbent coating layer; 404. Wear-resistant layer. Detailed Implementation

[0041] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0042] like Figures 1-3 As shown, the fabric coating and conveying device of this embodiment is installed in the coating container 1 and includes a staggered drive dyeing roller group and a pressure roller 5 located above the drive dyeing roller group.

[0043] The transmission dyeing roller assembly includes:

[0044] Support roller 2 is fixedly installed at the bottom of paint container 1.

[0045] The extrusion rollers 3 are staggered above the support rollers 2 and are capable of relative displacement with respect to the support rollers 2.

[0046] The suction coating roller 4, a composite layer roller, rests between adjacent extrusion rollers 3; the fabric to be coated 9 rests above the suction coating roller 4, and the pressure roller 5 applies pressure to the suction coating roller 4.

[0047] Several extrusion rollers 3 are provided. The extrusion roller 3 in the middle position and the support base serve as the reference roller for the transmission printing and dyeing roller group. The extrusion rollers 3 at both ends along the forward direction of the fabric 9 are power rollers and are equipped with power source groups to drive the power rollers to move.

[0048] The displacement of the power roller and the displacement of the pressure roller 5 are synchronized.

[0049] The power source assembly includes a first power source 7 that drives the power roller to move in the horizontal direction and a longitudinal adjustment component 8 that drives the first power source 7 to move in the vertical direction;

[0050] The longitudinal adjustment component 8 adopts an active power device or a driven transmission structure.

[0051] The longitudinal adjustment component 8 is made of cylinder 6 or lead screw.

[0052] The roller shafts of the power roller and the coating roller 4 rest on an external frame, which is provided with an inclined channel to accommodate the movement of the roller shafts.

[0053] All the suction coating rollers 4 are located in the same horizontal plane.

[0054] The diameter of the extrusion roller 3 is larger than the diameter of the suction coating roller 4.

[0055] The coating roller 4 is always in contact with the coating in the coating container 1.

[0056] The dyeing and conveying method using a fabric dyeing and conveying device in this embodiment includes the following steps:

[0057] Preparation phase:

[0058] Pre-adjust the transmission printing and dyeing roller group, using the support wheel as a reference, and adjust the extrusion roller 3 to be located in the same horizontal plane;

[0059] Inject paint into paint container 1, and determine the depth to which the coating roller needs to be immersed in the paint according to the type and viscosity of the paint.

[0060] The power source unit drives the extrusion roller 3 to move upward or downward. At this time, the extrusion roller 3 in the middle position and the support roller 2 remain stationary. The coating roller 4 adjusts up and down slightly with the movement of the extrusion rollers 3 on both sides until the immersion depth reaches the expected purpose.

[0061] Equipment operation phase:

[0062] The fabric 9 passes between the suction coating roller 4 and the pressure roller 5 and is pressed horizontally down until it contacts the suction coating roller 4. At this time, the fabric 9 moves forward and pulls the suction coating roller 4 to rotate.

[0063] The pressure roller 5 presses down onto the fabric 9 to ensure that the stress is equal at all points of contact between the fabric 9 and the coating roller 4.

[0064] During the paint consumption process, the liquid level drops. The liquid level sensor detects the change in liquid level and controls the power source group to drive the extrusion roller 3 to gradually descend, maintaining the paint immersion depth and the water-oil coating ratio.

[0065] The power source unit drives the displacement of the extrusion roller 3, which is adjusted by descending a specified distance in a single time interval.

[0066] The specific structure and working principle of this invention are as follows:

[0067] like Figure 2 The diagram shown is a schematic of the overall structure, and its purpose is to provide a coating structure that can automatically adjust the amount of paint absorbed.

[0068] The overall structure is set as follows Figure 2 In the paint container 1, a support roller 2 is provided at the bottom of the paint container 1. Two support rollers 2 are provided and are located at the same vertical height.

[0069] by Figure 1 Based on the forward direction of the fabric 9 to be coated, a first power source 7 and a longitudinal adjustment component 8 are respectively set on the front and rear sides near the coating container 1.

[0070] In one embodiment of this invention, the longitudinal adjustment member 8 adopts an actively powered structure. Both the first power source 7 and the longitudinal adjustment member 8 can be cylinders 6 or hydraulic cylinders, mounted outside the paint container 1, and their output shafts are connected to the extrusion roller 3 inside the paint container 1. To facilitate illustrating the relative positional relationship between the first power source 7 and the longitudinal adjustment member 8 and the extrusion roller 3, a side sectional view is used in the figure, and the outline of the power source is simplified.

[0071] As an alternative implementation, the longitudinal adjustment member 8 can also be a driven member, such as a rotatable vertical lead screw with a threaded sleeve fitted on it. The lead screw is vertically set at both ends in the forward direction of the paint container 1. When the first power source 7 pushes the extrusion roller, since the extrusion roller needs to move relative to the support roller 2 in the vertical direction, the first power source 7 also needs to be longitudinally adjusted accordingly. At this time, the threaded sleeve at the tail end of the first power source 7 moves up and down, and the lead screw converts the up and down movement of the threaded sleeve into rotation in place.

[0072] This allows for the adjustment of the extrusion roller 3 in both the horizontal and vertical planes.

[0073] As an alternative implementation, the power source can be electrically adjusted, or manually adjusted, for example, by using a hand-cranked rack and pinion or by manually turning a lead screw. However, for efficiency and precise control, electric control is preferred.

[0074] Three extrusion rollers 3 are used, staggered with two support rollers 2. Since the middle extrusion roller 3 is already held between the two support rollers 2, its relative position is restricted. The front and rear extrusion rollers 3 need to be driven by a power source, so the roller shafts of the front and rear extrusion rollers 3 should have sliding channels on the external frame.

[0075] Two suction coating rollers 4 are installed in the gap formed by the three extrusion rollers 3, and are supported and limited by the three extrusion rollers 3. Since the relative positions of two of the extrusion rollers 3 can be adjusted, the upper suction coating roller 4 moves up and down when the two extrusion rollers 3 move. Therefore, the roller shafts of the two suction coating rollers 4 are also equipped with sliding channels on the external frame.

[0076] At this point, the support structure located below the fabric 9 to be coated has been designed. The support force comes from the support roller 2 and the extrusion roller 3. The coating roller 4 has no additional power. It is moved by the fabric 9 to be coated, and comes into contact with the surface of the coating roller 4, dragging the coating roller 4 to rotate, adhering the coating to the surface of the coating roller 4, and then being evenly coated onto the fabric by the extrusion roller 3.

[0077] To ensure uniform force distribution at the contact point, a pressure roller 5 equipped with a cylinder 6 is installed above the suction coating roller 4 to press the fabric 9 to be coated onto the suction coating roller 4. Since the suction coating roller 4 is not made of a very hard material, it results in a narrow surface contact under pressure, which improves the coating efficiency.

[0078] In the operation of this invention, the two support rollers 2 and the middle extrusion roller 3 serve as references, while the extrusion rollers 3 on both sides act as adjustment components. After the positions of the extrusion rollers 3 on both sides are preset, the position of the coating roller 4 is defined, and the operating state of the fabric to be coated 9 is as follows: Figure 2 As shown, the fabric is horizontal and rests above the suction coating roller 4; then the cylinder 6 pushes the pressure roller 5 down until the fabric and the suction coating roller 4 are in contact, and the fabric is in the dyeing state.

[0079] The coating roller used in this invention is unpowered, replacing the traditional electric roller with a fabric conveying and pulling mechanism. Electrically driven rollers can cause inconsistencies between the fabric conveying speed and the roller's transmission speed, affecting printing quality.

[0080] For example, when the fabric is finished being conveyed, the rollers continue to spin idly; when the fabric gets stuck or stops during transmission, the rollers continue to rotate, causing the dyeing to overlap and become heavier; when the fabric speed increases and the rollers rotate at the original speed, the original dyeing pattern is stretched on the fabric, affecting the quality of the finished product.

[0081] This embodiment uses a passive, unpowered coating roller, such as... Figure 3 As shown, when the fabric speed decelerates, stops, or accelerates, the speed of the roller and the fabric can be kept consistent.

[0082] like Figure 3 As shown, the roller of the present invention is provided with a coaxial support layer 401, a flexible joint layer 402, an absorbent coating layer 403, and a wear-resistant layer 404 from the inside to the outside.

[0083] The support layer 401 is made of metal or other hard materials, requiring high hardness and the ability to bear the weight of the entire roller without deformation. Alloy materials can be selected to achieve the requirements of light weight and high strength.

[0084] The flexible layer 402 can be made of a flexible material that provides slight elastic deformation capability, such as rubber, nylon, asbestos, etc.

[0085] The absorbent coating layer 403, as the main structure of the outer layer, adopts a porous foam structure. On the one hand, the foam structure is lighter than a solid structure and can provide a larger surface area for the same weight, improving coating efficiency; on the other hand, it can effectively adhere to the coating material, pressing the coating onto the fabric. The pressing force is part of the fabric's own weight. The absorbent coating layer 403 can be made of a high-molecular plastic foam material, which has a certain degree of rigidity and, compared to completely rigid metal, has higher coating affinity, enabling effective coating transfer.

[0086] The outermost layer is covered with a wear-resistant layer of 404. The main function of the wear-resistant layer of 404 is to extend the service life and increase the friction between it and the raw fabric.

[0087] When using the roller provided by this invention, a positioning shaft passes through the middle of the roller, and the positioning shaft is fixed. The roller is sleeved on the positioning shaft, and a bearing is added to reduce the frictional resistance between the support layer 401 and the positioning shaft. The roller is horizontally placed on the paint tank, with the lower part of the roller immersed in the paint. The fabric passes horizontally above the roller. Due to the frictional resistance between the fabric and the roller, as the fabric 9 moves forward, it pulls the roller, and the roller surface is coated with paint, which is then applied to the fabric. When the fabric 9 finishes running and stops, the roller stops rotating accordingly, which reduces the risk of the roller continuing to rotate and contaminating the fabric pattern.

[0088] This new type of non-powered dyeing roller is lightweight and maintains synchronous transmission speed with the fabric at all times, which can effectively improve the dyeing process.

[0089] The equipment and method of the present invention are used for dyeing of fabric 9. The depth of the rollers immersed in the coating can be controlled by adjusting the power sources on both sides, thereby controlling the water-oil coating ratio and achieving the purpose of improving quality control.

[0090] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A fabric coating and conveying device, characterized in that: The coating container (1) contains staggered drive printing rollers and a pressure roller (5) located above the drive printing rollers. The transmission dyeing roller assembly includes: The support roller (2) is fixedly installed at the bottom of the paint container (1). The extrusion rollers (3) are staggered above the support rollers (2), and the relative positions of the extrusion rollers (3) are restricted. The suction coating roller (4), which is a composite layer roller, falls between adjacent extrusion rollers (3); the fabric to be coated (9) falls above the suction coating roller (4), and the pressure roller (5) applies pressure to the suction coating roller (4). The extrusion rollers (3) are provided in three positions, and the support rollers (2) are provided in two positions. The extrusion rollers (3) in the middle position and the two support rollers serve as the reference rollers for the transmission printing and dyeing roller group. The extrusion rollers (3) at both ends along the forward direction of the fabric to be dyed (9) are the power rollers. A power source group is configured to drive the power rollers to move. The power source group includes a first power source (7) that drives the power rollers to move in the horizontal direction and a longitudinal adjustment component (8) that drives the first power source (7) to move in the vertical direction. The power source unit enables the adjustment of the extrusion roller (3) in the horizontal and vertical planes. Two suction coating rollers (4) are installed in the gap formed by the three extrusion rollers (3). They are supported and limited by the three extrusion rollers (3). When the two extrusion rollers (3) move, the upper suction coating roller (4) moves up and down accordingly. The roller shafts of the power roller and the suction coating roller (4) rest on the external frame. The frame is provided with an inclined channel to accommodate the movement of the roller shafts. A pressure roller (5) with a cylinder (6) is set above the suction coating roller (4) to press the fabric (9) to be coated onto the suction coating roller (4). All the suction coating rollers (4) are located in the same horizontal plane. The suction coating rollers (4) are always in contact with the paint in the paint container (1). During use, the suction coating rollers (4) do not have additional power. The fabric to be coated (9) moves and contacts the suction coating roller (4), dragging the suction coating roller (4) to rotate, adhering the paint to the surface of the suction coating roller (4), and after being pushed evenly by the extrusion roller (3), it is coated onto the fabric to be coated.

2. The fabric coating and conveying device as described in claim 1, characterized in that: The displacement of the power roller and the displacement of the pressure roller (5) are synchronous.

3. The fabric coating and conveying device as described in claim 1, characterized in that: The longitudinal adjustment component (8) adopts an active power device or a driven transmission structure.

4. The fabric coating and conveying device as described in claim 3, characterized in that: The longitudinal adjustment component (8) is a cylinder (6) or a lead screw.

5. The fabric coating and conveying device as described in claim 1, characterized in that: The diameter of the extrusion roller (3) is larger than the diameter of the coating roller (4).

6. A dyeing and conveying method using the fabric dyeing and conveying device according to claim 1, characterized in that, Includes the following steps: Preparation phase: The transmission printing and dyeing roller group was pre-adjusted, and the extrusion roller (3) was adjusted to be in the same horizontal plane with the support wheel as the reference. Inject paint into paint container (1), and determine the depth to which the coating roller needs to be immersed in the paint according to the type and viscosity of the paint; The power source unit drives the extrusion roller (3) to move upward or downward. At this time, the extrusion roller (3) in the middle position and the support roller (2) remain stationary. The coating roller (4) adjusts up and down slightly with the movement of the extrusion rollers (3) on both sides until the immersion depth reaches the expected purpose. Equipment operation phase: The fabric to be coated (9) passes between the suction coating roller (4) and the pressure roller (5) and is pressed horizontally down until it contacts the suction coating roller (4). At this time, the fabric to be coated (9) moves forward and pulls the suction coating roller (4) to rotate. The pressure roller (5) presses down onto the fabric to be coated (9) to ensure that the stress is equal at all points of contact between the fabric to be coated (9) and the absorbent coating roller (4); During the consumption of the coating, the liquid level drops. The liquid level sensor detects the change in liquid level and controls the power source group to drive the extrusion roller (3) to gradually descend, maintaining the coating immersion depth.

7. The coating and conveying method as described in claim 6, characterized in that: The power source group drives the extrusion roller (3) to move, and adjusts the displacement by descending a specified distance in a single time interval.

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