WO2013053332A1

WO2013053332A1 - Preshrinking device for cold transfer printing machine

Info

Publication number: WO2013053332A1
Application number: PCT/CN2012/082847
Authority: WO
Inventors: 钟博文
Original assignee: 长胜纺织科技发展(上海)有限公司
Priority date: 2011-10-13
Filing date: 2012-10-12
Publication date: 2013-04-18
Also published as: CN202242297U

Abstract

Disclosed in the present invention is a preshrinking device for a cold transfer printing machine, which comprises a backing roll (11), a triangle roll (10), a backer roll (7), a wringer roll (9), a tensioning roll (14) and an annular rubber blanket (22), surrounding the backer roll (7), the wringer roll (9), the triangle roll (10) and the tensioning roll (14). The outer circumferential surface of the annular rubber blanket (22) contacts with the part of the circumference of backing roll (11) to form a rubber preshrinking mechanism. The preshrinking device is characterized by: a mesh belt conveying mechanism, an expanding and adjusting mechanism, and a control mechanism for tension. The mesh belt conveying mechanism comprises a drive roll (3) for said mesh belt, a tensioning roll (6) for said mesh belt, an annular mesh belt (4) which surrounds the circumferential surface of the two rolls, and a pulling belt. The expanding and adjusting mechanism comprises a shaft frame composed of two discs and two separator rolls (8) at the left and right side. The control mechanism for tension comprises a tension roll (13) and an angular displacement sensor (20). After being processed by the preshrinking device, the radial size and density of the transfer printed fabric are greatly improved, and the slant and arc of the transfer printed fabric are effectively controlled.

Description

Pre-shrinking device for cold transfer printing machine

The utility model relates to a printing and dyeing machine in a textile machine, in particular to a pre-shrinking device after a needle-plate chain tenter unit of a cold transfer printing machine. According to the process requirements of transfer printing, especially cold transfer printing, the fabric needs to be impregnated with the pretreatment liquid before transfer to enhance the bonding ability of the fabric and the dye, thereby increasing the transfer rate of the dye. At the same time, after the fabric pre-impregnation treatment solution, the needle-plate chain tenter is required to ensure the width and dimension. When the fabric enters the transfer printing unit, the fabric must be slack, smooth and tension-free, and the warp and weft density of the fabric must reach the process size after printing, so as to ensure the pattern. After being transferred, it has a flower-shaped deformation distortion, and the dye distribution is uniform. Background technique

Transfer printing is a new type of printing method. Because the production process meets the requirements of energy saving and environmental protection, and the operation is simple, a printing revolution has been set up in the market. The transfer printing is to print the dye originally printed on the fabric, first printed on the transfer printing paper by a printing machine, and then transfer the pattern on the transfer printing paper to the fabric by mechanical or chemical means. This printing method usually involves impregnating or coating the fabric to be printed with a pretreatment liquid to enhance the ability of the fabric to absorb the dye to improve the dye transfer rate. In the process of padding (from dry state to wet state), warp elongation and latitudinal shrinkage may occur, especially knitted fabrics are more obvious. In order to obtain good quality and quality when the fabric to be printed is transferred, the fabric to be printed is increased after the padding, and the width of the fabric is ensured, that is, the weft elongation of the fabric, the warp direction There is shrinkage, and the weft and weft arcs become smaller. For example, "Patent No. 200820055536.3" is a utility model patent entitled "Automatic Transfer Device for Transfer Printing Machine", which is for the purpose of ensuring the warp and weft size of the transfer cloth. However, since the moisture content of the fabric during the padding is too large, the needle chain tenter unit can only restore the weft dimension of the fabric, and the warp dimension is difficult to ensure. It has been proved by a large number of experiments that it is difficult to ensure that the printed fabric reaches the gauge before the transfer printing and after the transfer printing. The fixed size and the warp and weft density, so that the dye ink transfer during printing and the dye ink infiltration after printing are uneven, especially the knitted fabric can not reach the specified size requirements in the warp and weft directions before the transfer printing and ensure the warp and weft density. Does not change. The needle-plate chain tenter unit currently used can be controlled in the latitudinal dimension, and at the same time reduces the occurrence of latitude and weft arc, but in the warp direction, it can only naturally contract with the latitudinal elongation. There may be problems such as arcing, warping, etc. In this way, when the transfer printing, the dye ink on the transfer printing paper is transferred onto the printed fabric, and after the fixing and setting treatment, the printing pattern will have deformation distortion, and the dyed ink penetrates after the transfer printing. In the fixing stage, the warp and weft density and the specified size are not guaranteed, and the dye ink penetration is also inconsistent, thereby affecting the uniformity of the color. Summary of the invention

In order to solve the needle-web chain tenter unit of the existing transfer printing machine, only the weft size of the printed fabric can be well controlled, and the warp size can not be corrected, thereby causing problems such as warp and warp, especially for knitting. The moisture content and elongation of the material after the padding are very large. The utility model provides a pre-shrinking device for a cold transfer printing machine, which can overcome the shortcoming that the warp dimension of the currently printed fabric before entering the transfer printing unit cannot meet the required specifications, and can have a stable tension and a small The printed fabric is conveyed to the transfer printing area in a flat running state by arc and warp.

The technical solution adopted by the utility model to solve the technical problem thereof: A pre-shrinking device for a cold transfer printing machine, which is composed of a mesh belt conveying mechanism, a widening adjustment mechanism, a rubber blanket pre-shrinking mechanism and a tension control mechanism.

The blanket pre-shrinking mechanism is a pressure roller and a triangular roller connected by a bearing seat on the left and right wall panels of the frame, and the pressure roller and the pressure roller motor are drivingly connected; and in the chute of the left and right wall panels of the rack The pressure roller, the water squeezing roller and the tensioning roller are connected through a bearing seat, and the bearing seat of the pressure roller is connected via a connecting arm and a screw rod and a pressing motor, and the bearing seats at the two ends of the water squeezing roller and the left and right cylinders respectively The top end is connected, the bearing seats at the two ends of the tensioning roller are respectively connected by the connecting arm and the screw rod and the left and right lifting motors; another annular rubber blanket The surrounding pressure roller, the water squeezing roller, the triangular roller and the tension roller are wrapped, and the outer circumferential surface of the annular rubber blanket is in contact with a part of the circumferential surface of the pressure roller to form a blanket pre-shrinking mechanism.

The mesh belt conveying mechanism is composed of a mesh belt driving roller and a mesh belt tension roller, and an annular mesh belt and a carrier belt which are wound around the circumferential surfaces of the two rollers.

The expansion adjustment mechanism consists of a two-disc shaft frame, which is pivotally connected to the left and right wall panels through the central axes of the two discs. One end of the central axis of the two discs is connected to the handwheel adjuster, and the two discs are connected by two. The dividing roller and the separating roller are composed of a driving motor drive connection.

The tension control mechanism has two links fixed at one end to the left and right wall panels, the other ends of the two links are connected with a force bar, the middle of the two links is connected with the top end of the tension frame cylinder, and is rotated at any of the connecting rods and the wall plate The joint is connected to an angular displacement sensor 20 to form a tension control mechanism.

The pre-shrinking device of the cold transfer printing machine is sequentially composed of a mesh belt conveying mechanism, a wide-width adjusting mechanism, a blanket pre-shrinking mechanism and a tension adjusting mechanism, and is located between the conveying device of the cold transfer printing machine and the transfer device. .

The mesh belt driving roller of the mesh belt conveying mechanism is connected by a chain transmission and a mesh belt transmission motor, and the mesh belt transmission motor is a needle chain chain tenter synchronous transmission motor in the cold transfer printing machine conveying device.

The two splitter rolls of the spreader adjustment mechanism are composed of a metal roll wound with a stainless steel wire.

The tension bar of the tension control mechanism is an aluminum alloy stick; the angular displacement sensor 20 uses a potentiometer type sensor.

The mesh belt conveying mechanism is to make the printed fabric enter the pre-shrinking unit in a state of smoothness, slackness and no tension, and can support the printed fabric so that the warp and weft density of the printed fabric is not caused by the drooping of its own weight, thereby ensuring the later stage. Transfer printing requirements. The active expanding mechanism can actively expand the width, and at the same time reduce the tension of the fabric to be printed, and ensure that the fabric to be printed can enter the blanket pre-shrinking mechanism without tension and smooth and wrinkle-free, so that the fabric achieves the best effect. The blanket pre-shrinking mechanism can make the fabric to be printed close to the rubber blanket and shrink accordingly. In order to achieve the control of the warp dimension, the phenomenon of warp and warp is reduced, and the pre-shrinkage rate of the fabric is ensured. The tension control mechanism mainly adjusts the tension synchronization between the pre-shrinking unit and the transfer printing unit, ensures the speed uniformity of the front and rear units, and allows the fabric to be printed to enter the final transfer printing device without tension, thereby ensuring the printing quality of the fabric.

The advantage of the cold transfer printing machine pre-shrinking device provided by the utility model is that: after the pre-shrinking process of the fabric, the warp direction size and density of the fabric can be greatly improved, and the oblique and arc-arc is effectively controlled, and finally The tension at the cloth is synchronously controlled to allow the printed fabric to relax and tension-free into the transfer device, thereby improving the quality of the fabric transfer. DRAWINGS

The invention will now be further described with reference to the drawings and examples.

Figure 1 is a schematic view of a pre-shrinking device of a cold transfer printing machine.

Figure 2 is a plan view of Figure 1.

Shown in the figure

1. Needle roller 2. Guide cloth stick 3. Net belt drive roller 4. Net belt

5. Grinding roller 6. Net belt tensioning roller 7. Pressure roller 8. Split roller

9. Squeeze roller 10. Triangle roller 11. Pressure roller 12. Tension frame cylinder 13. Tension roller 14. Tension roller 15. Lift motor 16. Expanding roller

17. Mesh belt drive motor 18. Expanded motor 19. Pressure roller motor 20. Angular displacement sensor

21. Compression motor 22. Rubber blanket 23. Printed fabric

The following is an embodiment of the present invention in conjunction with the accompanying drawings, which is a pre-shrinking device for use in a cold transfer printing machine. However, the present invention is not limited to the embodiments described, and various modifications may be made by those skilled in the art within the scope of the present invention.

Example: The pre-shrinking device of the cold transfer printing machine is shown in FIG. 1 and FIG. 2, and is sequentially connected by a mesh belt conveying mechanism, a wide-width adjusting mechanism, a blanket pre-shrinking mechanism and a tension adjusting mechanism, and is disposed in the cold transfer printing machine. Between the device and the transfer device. among them:

Rubber pre-shrinking mechanism: It adopts the pre-shrinking machine of printing and dyeing in the textile industry. After being modified, it is connected with the cold transfer printing machine. The pressure roller 11 and the triangular roller 10 are connected to the left and right wall panels of the frame through the bearing housing; the pressure roller 7, the water squeezing roller 9 and the tension roller are also connected to the sliding groove of the left and right wall panels of the rack through the bearing housing. 14; another annular rubber blanket 22 is wrapped around the connecting pressure roller 7, the water squeezing roller 9, the triangular roller 10 and the tension roller 14, and the outer circumferential surface of the annular rubber blanket is in contact with a part of the circumferential surface of the pressure roller 11, forming an oak Blanket pre-shrinking mechanism. The pressure roller 11 is drivingly connected to the pressure roller motor 19, and the pressure roller 11 is rotationally moved. The bearing seat of the pressure roller 7 is connected to the screw and the pressing motor 21 via the connecting arm and the screw. When the pressing motor is in operation, the connecting arm and the screw rod and the bearing seat are engaged, and the pressing roller 7 can be pushed in the sliding groove. mobile. The bearing seats at the two ends of the water squeezing roller 9 are respectively connected with the left and right cylinder heads, and the water squeezing roller 9 is paired with the annular rubber blanket 22 by the expansion and contraction of the left and right cylinders and under the action of the corresponding pressure roller on the outer circumference of the annular rubber blanket. Produce extrusion. The bearing seats at the two ends of the tensioning roller 14 are respectively connected to the left and right lifting motors 15 via the connecting arm and the screw rod. When the left and right lifting motors 15 act simultaneously, the connecting arm and the screw rod and the bearing seat are engaged, and the tension is pushed. The roller 14 moves in the chute for tensioning the annular rubber blanket 22; when one of the left and right lifting motors 15 acts as a lifting motor, the one end of the tensioning roller 14 is pushed to move in the chute, and the ring rubber The blanket plays a role in correcting the deviation. In addition, the blanket pre-shrinking mechanism also includes components such as a grinding roller 5, a spray pipe and a water receiving tray.

Mesh belt conveying mechanism: The belt belt driving roller 3 and the belt tensioning roller 6 and the wrapping belt are integrally formed on the circumferential surface of the two rollers. The mesh belt driving roller 3 of the mesh belt conveying mechanism is connected by a chain transmission and a belt belt transmission motor 17, which is a needle chain chain tenter synchronous transmission motor in the cold transfer printing machine conveying device.

Expansion adjustment mechanism: from the left and right of the two discs of the pedestal, and through the middle of the two discs The mandrel is rotatably connected to the left and right wall plates, one end of the central axis of the two discs is connected with the hand wheel adjuster, and two splitter rolls 8 are rotatably connected between the two discs, and the two splitter rolls 8 are made of metal rolls wound with stainless steel wires. And consisting of driving motor drive connections to form a wide-width adjustment mechanism;

Tension control mechanism: two links fixed to the left and right wall panels by one end, the other ends of the two links are connected with a force bar 13, the tension bar 13 is composed of an aluminum alloy; the middle of the two links and the top end of the tension frame cylinder 12 Connecting, and connecting an angular displacement sensor 20 at any of the connecting links of the connecting rod and the wall plate, the angular displacement sensor 20 adopts a potentiometer type sensor; together constitute a tension control mechanism.

The processing route of the printed fabric is as follows: the printed fabric is first taken off from the decoupling roller 1 of the cold transfer printing machine conveying device, and then fed to the endless mesh belt 4 of the mesh belt conveying mechanism after the guiding cloth 2 Above, the two-part roller 8 which is conveyed to the expansion adjusting mechanism via the endless belt 4 is wrapped and expanded, and then enters the blanket pre-shrinking mechanism, and is pressed between the annular rubber blanket 22 and the pressure-bearing roller 11. After the shrinking action, the tension roller 13 of the tension control mechanism is finally passed through the tension roller 13 under the set tension, and is fed into the expansion roller 16 of the cold transfer printing machine transfer device, and then transferred to the transfer paper together for transfer. The device is transferred.

Claims

A pre-shrinking device for a cold transfer printing machine, comprising a pressure roller (11) and a triangular roller (10) connected to a left and right wall plate of a frame through a bearing housing, the pressure roller and the pressure roller motor (19) transmission connection; and a pressure roller (7), a water squeezing roller (9) and a tension roller (14) connected to the chute in the left and right wall panels of the rack through the bearing housing, the bearing of the pressure roller The seat connecting arm and the screw rod are connected to the pressing motor (21), and the bearing seats at the two ends of the water squeezing roller are respectively connected with the left and right cylinder heads, and the bearing seats at the two ends of the tensioning roller are respectively connected via the connecting arm and the screw rod The left and right lifting motors (15) are connected; another annular rubber blanket (22) is wrapped around the connecting pressure roller, the water squeezing roller, the triangular roller and the tensioning roller, and the outer circumferential surface of the annular rubber blanket is in contact with a partial circumferential surface of the pressure roller Connecting, forming a blanket pre-shrinking mechanism, characterized by:

The pre-shrinking device further includes a mesh belt conveying mechanism, a width adjusting mechanism and a tension control mechanism;

The mesh belt conveying mechanism is composed of a mesh belt driving roller (3) and a mesh belt tensioning roller (6) and an annular mesh belt (4) and a carrier belt which are wound around the circumferential surfaces of the two rollers; The amplitude adjusting mechanism is composed of left and right bobbins, and is pivotally connected to the left and right wall panels through the central axes of the two discs. One end of the central shaft of the two discs is connected with the hand wheel adjuster, and the two discs are connected by rotation. The root splitting roller 8 is connected by a driving motor to form a widening adjustment mechanism;

The tension control mechanism has two links fixed to the left and right wall panels at one end, the other ends of the two links are connected with a force bar (13), and the middle of the two links is connected to the top end of the tension frame cylinder (12), and An angular displacement sensor (20) is coupled to the rotational connection of any of the connecting rods and the wall panel to form a tension control mechanism.

2. The pre-shrinking device of the cold transfer printing machine according to claim 1, wherein: the pre-shrinking device of the cold transfer printing machine comprises a mesh belt conveying mechanism, a width adjusting mechanism, a blanket pre-shrinking mechanism and a tension. The adjustment mechanism is connected and located between the conveying device of the cold transfer printing machine and the transfer device.

3. The pre-shrinking device of the cold transfer printing machine according to claim 1, wherein: the mesh belt driving roller of the mesh belt conveying mechanism is driven by a chain drive and a mesh belt drive motor.

(17) Transmission connection, the mesh belt transmission motor is a needle chain chain tenter synchronous transmission motor in the cold transfer printing machine conveying device.

4. The pre-shrinking device of the cold transfer printing machine according to claim 1, wherein: the two separating rolls (8) of the expansion adjusting mechanism are composed of a metal roll wound with a stainless steel wire.

5. The pre-shrinking device of the cold transfer printing machine according to claim 1, wherein: the tension bar of the tension control mechanism is an aluminum alloy stick; and the angular displacement sensor uses a potentiometer type sensor.