O-shaped dye vat cloth tank suitable for high-density cloth

Abstract

The utility model relates to an O-shaped dye vat cloth groove suitable for high-density cloth. The O-shaped dye vat cloth groove comprises a groove body and a baffle. The cross section of the groove body is J-shaped, the groove body is provided with a cloth inlet located at the upper end and a cloth outlet located at the side end, and the baffle is arranged below the cloth inlet and located on the wall face close to the cloth outlet; a degassing mechanism is arranged on the lower portion of the baffle and comprises a plurality of cloth pressing bent pipes arranged on the lower edge of the baffle side by side, and the bending direction of the cloth pressing bent pipes is in the bending direction of the groove body. According to the cloth groove, the cloth is extruded by the cloth pressing bent pipe, and the internal air pressure is increased, so that the air escapes along gaps of the cloth, the cloth in the groove body does not have obvious bumps, the problems that the cloth collapses and entangles and cannot be circularly conveyed are solved, the cloth conveying orderliness is kept, and the cloth conveying efficiency is improved. The industrial problem that an O-shaped dye vat cannot be adopted for high-density cloth is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing and dyeing, in particular to an O-shaped cloth trough for a dye vat suitable for high-density cloth. Background Art

[0002] The O-type dye vat is a new type of fabric printing and dyeing equipment with water-saving advantages. It consists of a vat body, a tower head, and a fabric trough. The vat body is a closed cylindrical structure with a horizontal axis and a fabric inlet on its side. The tower head is located above the vat body and houses the fabric traction mechanism and spray pipe. The fabric trough is a C-shaped structure located inside the vat body. The fabric trough has an upper fabric inlet and a lower fabric outlet. The fabric inlet connects to the outlet of the spray pipe, and the fabric outlet connects to the inlet of the fabric traction mechanism.

[0003] Chinese patent CN217127762U discloses an eco-friendly, water-saving O-shaped dye vat. The O-shaped dye vat's workflow involves twisting the fabric into a rope, feeding it into the vat through the fabric inlet, and then, under the action of a fabric traction mechanism, passing it through a spray pipe, a fabric inlet, and a fabric outlet, returning to the vicinity of the fabric inlet. The head and tail of the fabric are then connected. A tower head continuously passes the fabric through the spray position, thereby printing the fabric. A section of the fabric passing through the tower head is straightened and passed through a very narrow spray pipe, while the rest of the fabric is relaxed and accommodated in a reciprocating, serpentine-like structure within a fabric trough.

[0004] For low-density fabrics, the permeability is good, so the above printing and dyeing process can better maintain an orderly state of transportation. Therefore, O-type dyeing vats have been widely used for low-density fabrics. However, for high-density fabrics, such as polyester, the permeability is poor. When printing and dyeing, atomization printing is used, which will allow some gas to enter the fabric. Because the fabric has poor permeability, the fabric stained with dye will cause the gas to be trapped in its folded and entangled structure, and then accumulate into bulges, which will have a huge impact on the continuity of the dyeing process:

[0005] 1. Ideally, the fabric will always stick to the bottom wall in the fabric trough and will not be stacked in multiple layers. However, bulging will form a local arch structure in a certain middle section of the fabric. When the fabric is stacked in a serpentine shape, this local arch structure will make the fabric section pressed above it easily collapse, which will cause the fabric to tangle or even knot, making it impossible to maintain its order.

[0006] 2. Trapped air will increase the apparent cross-sectional area of the fabric, but the channel area of the fabric traction mechanism is limited. The further the fabric is transported, the more the gas that cannot pass through the channel will retreat and expand the fabric behind it, eventually completely blocking the channel. This will not only make transportation impossible, but also damage the fabric.

[0007] Therefore, in conventional practice, high-density fabrics cannot be dyed in O-type dyeing vats. This will require the use of wastewater-generating printing and dyeing equipment to dye high-density fabrics, increasing printing and dyeing costs, generating more printing and dyeing wastewater, and requiring the purchase of more printing and dyeing equipment, which takes up more factory space.

[0008] Therefore, it is necessary to improve the O-type dyeing tank to meet safety requirements. Summary of the Invention

[0009] The main purpose of the utility model is to provide an O-type dye vat cloth trough suitable for high-density cloth, which can avoid bulging of high-density cloth during transportation, maintain the orderliness of cloth transportation, and enable high-density cloth to be dyed with the O-type dye vat.

[0010] The utility model achieves the above-mentioned object through the following technical solutions: an O-shaped cloth trough for dyeing vats suitable for high-density cloth, comprising a trough body and a baffle, wherein the cross section of the trough body is J-shaped, the trough body has a cloth inlet at the upper end and a cloth outlet at the side end, and the baffle is arranged below the cloth inlet and on a wall surface close to the cloth outlet;

[0011] A degassing mechanism is provided at the lower portion of the baffle. The degassing mechanism is a plurality of cloth-pressing bent pipes arranged side by side at the lower edge of the baffle. The bending direction of the cloth-pressing bent pipes follows the bending direction of the trough body.

[0012] Specifically, the curvature radius of the cloth pressing elbow decreases from top to bottom.

[0013] Specifically, the cross section of the baffle is J-shaped, the bending direction of the baffle follows the bending direction of the trough body, and the inner side of the curved surface of the baffle is provided with crisscross reinforcing ribs.

[0014] Furthermore, a flip control mechanism for controlling the rotation angle of the baffle is provided on the outside of the trough body, and the flip control mechanism includes a cylinder, a transmission shaft and several connecting rods. The cylinder is fixed to one side of the trough body, and the axis of the transmission shaft is parallel to the axis of the trough body. A first rocker arm and several second rocker arms are provided on the transmission shaft. The end of the first rocker arm is hinged to the end of the cylinder shaft of the cylinder, and the two ends of each connecting rod are respectively hinged to the end of the second rocker arm and the reinforcing rib.

[0015] Furthermore, the transmission shaft is divided into a driving shaft, a universal transmission shaft and a driven shaft which are connected in sequence, the first rocker arm is arranged on the driving shaft, and the second rocker arm is arranged on the driven shaft.

[0016] Furthermore, the cloth trough includes a plurality of trough bodies arranged side by side, the axes of the plurality of trough bodies are collinear, each trough body is provided with a baffle, and the transmission shaft drives the plurality of baffles to rotate simultaneously in the same manner.

[0017] The beneficial effects of the technical solution of this utility model are:

[0018] The degassing mechanism and baffles form a fork-shaped structure, with a certain gap between the pressing elbows. The fabric is distributed in a serpentine pattern within the fabric trough. When the degassing mechanism presses against the fabric, the pressing elbows become nearly perpendicular to the fabric. As a result, the height of the areas directly contacted by the pressing elbows decreases. Furthermore, areas with higher heights are also lowered by the fabric tension, significantly reducing the space within the fabric between adjacent pressing elbows. High-density fabric inherently has high permeability resistance, but no matter how wrinkled the fabric is, its cross-section at any point is a "maze" with an exit, blocked by a film of water. With sufficient air pressure, air can push through the film and escape from the fabric. Therefore, when the fabric is squeezed by the pressing elbows, the internal air pressure increases, allowing it to escape through the gaps in the fabric. This eliminates noticeable bulging of the fabric within the trough, preventing collapse, tangling, and impeded conveying, thus maintaining orderly fabric conveying. Although the change of the baffle is simple, it solves the industry problem that high-density fabrics cannot be dyed using O-type dyeing tanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of a fabric trough according to an embodiment;

[0020] Figure 2 for Figure 1 A partial enlarged view of position A in the middle;

[0021] Figure 3 is a cross-sectional view of the cloth trough;

[0022] Figure 4 is a three-dimensional diagram of the baffle;

[0023] Figure 5 This is the working principle diagram of the cloth pressing elbow.

[0024] The numbers in the figure represent:

[0025] 1- trough body, 11- cloth inlet, 12- cloth outlet;

[0026] 2- baffle, 21- cloth pressing elbow, 22- reinforcing rib;

[0027] 3- flip control mechanism, 31- cylinder, 32- transmission shaft, 321- driving shaft, 3211- first rocker arm, 322- universal joint shaft, 323- driven shaft, 3231- second rocker arm, 33- connecting rod;

[0028] 4-cloth, 41-gap. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to specific embodiments.

[0030] Example:

[0031] like Figure 1 As shown, the utility model is an O-shaped cloth trough for dyeing vats suitable for high-density cloth, comprising a trough body 1, a baffle 2 and a turnover control mechanism 3.

[0032] The smaller cylindrical surface on the inner side of the tank body 1 is the small cylindrical surface, and the larger cylindrical surface on the outer side is the large cylindrical surface. A cloth falling channel with variable width is formed between the baffle 2 and the large cylindrical surface outside the tank body 1.

[0033] like Figures 3 to 5 As shown, the cross-section of the trough body 1 is J-shaped, with a cloth inlet 11 at the upper end and a cloth outlet 12 at the side end. The cloth inlet 11 is a long hole extending along the width of the trough body 1. The baffle 2 is arranged below the cloth inlet 11 and on the wall near the cloth outlet 12. The baffle 2 is provided with a degassing mechanism below. The degassing mechanism is composed of multiple cloth pressing elbows 21 arranged side by side at the lower edge of the baffle 2. The curvature direction of the cloth pressing elbows 21 follows the curvature direction of the trough body 1, and the curvature radius of the cloth pressing elbows 21 decreases from top to bottom.

[0034] The cloth 4 enters the trough body 1 from the cloth inlet 11 in a horizontal reciprocating conveying manner, and the reciprocating direction is along the width direction of the trough body 1. Therefore, it will present a serpentine state when it is piled up in the lower part of the trough body 1. The cloth 4 leaves the trough body 1 from the cloth outlet 12, and the way of leaving is to be pulled out, so the original serpentine state will become a linear state. The degassing mechanism and the baffle 2 form a fork-shaped structure as a whole, and there is a certain spacing width between the cloth pressing bends 21. The cloth 4 is distributed in a serpentine shape in the cloth trough. When the degassing mechanism is pressed on the cloth, the relative position of the cloth pressing bend 21 and the cloth 4 is close to a vertical relationship, so the height of the position directly contacted by the cloth pressing bend 21 becomes smaller, and the position with a higher height will also become shorter due to the tension of the cloth 4, then the space in the cloth 4 between adjacent cloth pressing bends 21 will be significantly smaller. High-density fabric inherently has high permeability resistance, but no matter how wrinkled the fabric 4 is, its cross-section at any position is a "maze" with an exit. However, the exits of the slits 41 are blocked by a film of water. With sufficient air pressure, the air can push the film apart and escape from the fabric 4. Therefore, when the fabric is squeezed by the press elbow 21, the internal air pressure increases, allowing it to escape through the slits 41 in the fabric 4. At this point, the fabric 4 within the trough 1 no longer has noticeable bulging, preventing it from collapsing, tangling, or becoming unable to circulate, thus maintaining orderly fabric transportation. While a simple change to the baffle 2 solves the industry's problem of not being able to use O-type dye vats for high-density fabrics.

[0035] like Figure 4As shown, the cross section of the baffle 2 is J-shaped, and the bending direction of the baffle 2 follows the bending direction of the trough body 1. The inner side of the curved surface of the baffle 2 is provided with crisscross reinforcement ribs 22.

[0036] The reinforcing ribs 22 are used to improve the structural rigidity of the baffle 2, prevent the baffle 2 from being twisted and deformed by the reaction force of the fabric, and ensure that the channel width between the baffle 2 and the trough body 1 is stable.

[0037] like Figures 1 to 4 As shown, a flip control mechanism 3 for controlling the rotation angle of the baffle 2 is provided on the outside of the trough body 1. The flip control mechanism 3 includes a cylinder 31, a transmission shaft 32 and a plurality of connecting rods 33. The cylinder 31 is fixed to one side of the trough body 1. The axis of the transmission shaft 32 is parallel to the axis of the trough body 1. The transmission shaft 32 is divided into a driving shaft 321, a universal transmission shaft 322 and a driven shaft 323 connected in sequence. A first rocker arm 3211 is provided on the driving shaft 321. The end of the first rocker arm 3211 is hinged to the end of the cylinder shaft of the cylinder 31. A plurality of second rocker arms 3231 are provided on the driven shaft 323. The two ends of each connecting rod 33 are respectively hinged to the end of the second rocker arm 3231 and the reinforcing rib 22.

[0038] The width of the channel through which the fabric falls depends on the angle of baffle 2: that is, when baffle 2 droops, the channel width increases, and when baffle 2 tilts upward, the channel width decreases. This allows the fabric to accommodate various densities (reflected in the approximate diameter of the fabric strands). Baffle 2 cannot be too short, otherwise the angle between the curved cross-section of the fabric contacting trough 1 and the horizontal exceeds 45°, resulting in increased structural instability and a greater risk of collapse when the fabric is piled up. Therefore, baffle 2 needs to be long enough so that when the fabric leaves baffle 2, it is within the lower 45° range of the large cylindrical surface of trough 1. At this point, the upward support component of trough 1 on the fabric is greater than the lateral support component. This effectively prevents fabric collapse, allowing the fabric to be distributed in an orderly, serpentine pattern, ensuring continuous printing and dyeing. Reinforcement ribs 22 also provide a hinged connection for connecting rod 32. In this embodiment, when the cylinder shaft of cylinder 31 extends, baffle 2 swings upward, narrowing the channel; conversely, the channel widens, achieving automatic control of the channel width. The driving shaft 321, the universal joint shaft 322 and the driven shaft 323 together form the transmission shaft 32, which is used to transmit the telescopic action of the cylinder 31 into the rotational action of the baffle 2. This segmented structure can reduce the jamming problem caused by the low coaxiality of the driving shaft 321 and the driven shaft 323.

[0039] like Figure 1 As shown, the cloth trough includes two trough bodies 1 arranged side by side, the axes of the two trough bodies 1 are collinear, each trough body 1 is provided with a baffle 2, and the transmission shaft 32 drives the two baffles 2 to rotate simultaneously in the same way.

[0040] This doubles the volume of the fabric trough, allowing each of the two troughs 1 to print and dye a single strip of fabric. Consequently, the entire O-shaped dye vat will have two heads. The two troughs 1 share a single tilting control mechanism 3, saving parts. In practical applications, the number of troughs 1 is not limited to two, and the number of baffles 2 is the same as the number of troughs 1. Therefore, each trough 1 is equipped with a baffle 2, and all baffles 2 are driven to rotate together by the drive shaft 32.

[0041] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. An O-shaped fabric trough for a dye vat suitable for high-density fabrics, comprising a trough body and a baffle. The trough body has a J-shaped cross-section, a fabric inlet at an upper end, and a fabric outlet at a side end. The baffle is disposed below the fabric inlet and on a wall near the fabric outlet. The invention is characterized in that: A degassing mechanism is provided at the lower portion of the baffle. The degassing mechanism is a plurality of cloth-pressing bent pipes arranged side by side at the lower edge of the baffle. The bending direction of the cloth-pressing bent pipes follows the bending direction of the trough body.

2. The O-shaped fabric trough for dyeing vats suitable for high-density fabrics according to claim 1, characterized in that: The curvature radius of the cloth pressing elbow decreases from top to bottom.

3. The O-shaped fabric trough for dyeing vats suitable for high-density fabrics according to claim 1, characterized in that: The cross section of the baffle is J-shaped, the bending direction of the baffle follows the bending direction of the trough body, and the inner side of the curved surface of the baffle is provided with crisscross reinforcing ribs.

4. The O-shaped fabric trough for dyeing vats suitable for high-density fabrics according to claim 3, characterized in that: A flip control mechanism for controlling the rotation angle of the baffle is provided on the outside of the trough body, and the flip control mechanism includes a cylinder, a transmission shaft and several connecting rods. The cylinder is fixed to one side of the trough body, and the axis of the transmission shaft is parallel to the axis of the trough body. A first rocker arm and several second rocker arms are provided on the transmission shaft. The end of the first rocker arm is hinged to the end of the cylinder shaft of the cylinder, and the two ends of each connecting rod are respectively hinged to the end of the second rocker arm and the reinforcing rib.

5. The O-shaped fabric trough for dyeing vats suitable for high-density fabrics according to claim 4, characterized in that: The transmission shaft is divided into a driving shaft, a universal transmission shaft and a driven shaft which are connected in sequence. The first rocker arm is arranged on the driving shaft, and the second rocker arm is arranged on the driven shaft.

6. The O-shaped fabric trough for dyeing vats suitable for high-density fabrics according to claim 4, characterized in that: The cloth trough comprises a plurality of trough bodies arranged side by side, the axes of the plurality of trough bodies are collinear, each trough body is provided with a baffle, and the transmission shaft drives the plurality of baffles to rotate simultaneously in the same manner.

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