CN213947792U

CN213947792U - Positioning device for double-sided transfer printing

Info

Publication number: CN213947792U
Application number: CN202022548167.5U
Authority: CN
Inventors: 刘胤逾琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-08-13
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a two-sided transfer printing positioner, including stamp unit A part and the B part of two sets of symmetries, every group stamp unit includes carrier unwinding device, transfer printing carrier and locating plate, transfer printing carrier loads in carrier unwinding device, transfer printing carrier 2 is printed on first counterpoint mark on at least one side, be provided with corresponding second counterpoint mark on every locating plate, when the first counterpoint mark and the second counterpoint mark of A part and B part are all coincided, the flower type pattern that the stamp carrier of two parts each other is the mirror image can be totally accurate coincidence together; and a longitudinal adjusting device and a left-right adjusting device are respectively arranged at the carrier unreeling device end and are used for adjusting the positions of the transfer printing carriers of the part A and the part B so as to enable the alignment marks on the transfer printing carriers to coincide with the positioning marks on the positioning plates. The utility model discloses a device is simple for when the synchronous transfer seal flower of surface fabric positive and negative, mirror image flower type can coincide completely, has effectively reduced the production of wastrel.

Description

Positioning device for double-sided transfer printing

Technical Field

The utility model belongs to weaving printing and dyeing field specifically indicates a positioner for two-sided transfer printing.

Background

The transfer printing of the textile refers to the thermal sublimation transfer printing of the polyester fabric and the dry transfer printing of the reactive dye. The thermal sublimation transfer printing of the polyester fabric is to use low-temperature disperse dye which is easy to sublimate to prepare ink-jet printing ink or gravure printing ink, print or gravure the ink on paper to form thermal transfer printing paper, and dye the thermal transfer printing paper on the polyester fabric by sublimation of the disperse dye at high temperature.

The dry transfer printing of reactive dye is carried out by preparing reactive dye into ink-jet printing ink or gravure printing ink, printing on paper or plastic film coated with parting agent, hot-pressing fabric containing water-soluble hot-melt resin with it, adhering dye on carrier to fabric, steaming, washing and finishing transfer printing.

However, the biggest defects of the two processes are that the dye cannot penetrate, only one side is colored, and the reverse side of the printed fabric has no color, so that the application of the product is seriously influenced.

The current market increasingly requires that the two sides of the printed fabric have the same color, the front side and the back side cannot be distinguished, and the transfer printing can use a transfer printing carrier of a mirror image to clamp the fabric between the transfer printing carriers to finish the synchronous printing of the front side and the back side. When the front and the back of the transfer printing carrier are printed simultaneously, mirror image flower types are required to be completely overlapped, otherwise, the mirror image flower types become defective products, so that the flower type positioning of the double-sided synchronous printing of the transfer printing is realized, the mirror image flower types are completely overlapped when the front and the back are printed synchronously, and the problem to be solved urgently is solved.

CN107264103A discloses a method for double-sided transfer printing of fabric, which realizes double-sided transfer printing through a first transfer medium and a second transfer medium, and comprises: printing a first pattern on a transfer layer of a first transfer medium and printing a mirror image of the first pattern on a transfer layer of a second transfer medium; the transfer printing layer of the first transfer printing medium and the transfer printing layer of the second transfer printing medium are oppositely arranged and spaced at a certain interval, so that the printing patterns of the first transfer printing medium and the second transfer printing medium are in mirror symmetry; placing the facing material at a space between the first transfer medium and the second transfer medium; and heating and pressurizing the laminated structure consisting of the first transfer medium, the fabric and the second transfer medium so as to enable the transfer layer of the first transfer medium and the transfer layer of the second transfer medium to be separated from each other to the surface of the fabric. The printing mode can not print two sides simultaneously and has complex process.

CN107554056A discloses a double-sided film-covering transfer printing device, which comprises a rack, an upper transfer film conveying part, a lower transfer film conveying part, a fabric conveying part, a pressurizing part, a winding part, an upper transfer film conveying part, a lower transfer film conveying part, a fabric conveying part, a pressurizing part and a winding part which are all arranged on the rack, wherein the fabric conveying part is positioned in the upper transfer film conveying part, the upper transfer film is unwound and sent out from the upper transfer film conveying part in the middle of the lower transfer film conveying part, the lower transfer film is unwound and sent out from the lower transfer film conveying part, and the fabric to be printed is unwound and sent out from the fabric conveying part; the upper transfer film and the lower transfer film clamp the fabric in the middle, and the fabric is extruded by the main roller and the pressurizing roller and then wound on the winding part together. Although the device can realize double-sided printing, the defects of defective products and inconvenient adjustment are easily caused by asymmetrical front and back sides.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: for solving the technical problem that exists among the prior art, the utility model provides a be used for two-sided stamp positioner for when the positive and negative is printed in step, mirror image flower type coincidence completely.

In order to achieve the above object, the utility model provides a positioning device for double-sided printing, which comprises two groups of the same printing units A part and B part, each group of printing units comprises a carrier unreeling device, a transfer printing carrier and a positioning plate, the transfer printing carrier is loaded on the carrier unreeling device, wherein,

the transfer printing carriers of the part A and the part B respectively correspond to the front transfer printing and the back transfer printing of the fabric, and the patterns of the transfer printing carriers of the part A and the part B are mirror images;

at least one side of the same side of the transfer printing carrier is provided with a first alignment mark, the same side of each positioning plate is provided with a corresponding second alignment mark, and when the first alignment mark and the second alignment mark of the part A and the part B are overlapped, the patterns of the two parts of the transfer printing carriers which are mirror images are completely and accurately overlapped together;

and a longitudinal adjusting device and a left-right adjusting device are arranged at the carrier unreeling device and used for adjusting the positions of the transfer printing carriers of the part A and the part B so that the alignment marks on the transfer printing carriers coincide with the positioning marks on the positioning plate.

In one embodiment, the carrier supply device is a supply reel. For convenient operation, the longitudinal adjusting device and the left-right adjusting device are respectively arranged at two ends of the unreeling shaft.

The longitudinal adjusting device is a tension adjusting device, and the tension adjusting device is connected to one end of the carrier unreeling device and used for controlling unreeling tension of the unreeling device. The type of the tension adjusting device is not limited, the device capable of controlling the unreeling tension can be used on the market, and a magnetic powder brake is preferred for accurately controlling the unreeling tension.

As another implementation manner, the longitudinal adjusting device may be an unwinding servo motor, the unwinding servo motor is connected to one end of the carrier unwinding device, the unwinding speed of the unwinding servo motor is completely synchronous with the transfer printing speed, and the unwinding speed of at least one of the unwinding servo motors in the part a and the part B can be finely adjusted.

The unreeling device can be a single unreeling shaft, one end of the unreeling shaft is connected with the longitudinal adjusting device, and the other end of the unreeling shaft is connected with the left-right adjusting device of the unreeling device, but in the printing process, the unreeling linear speed is reduced along with the reduction of the roll diameter of the transfer printing carrier, and in order to compensate the change of the linear speed, an electric appliance control part is quite complex; in order to solve the problem, the unwinding device can also be composed of an unwinding shaft and a guide roller which are arranged in parallel, during printing, a transfer printing carrier is unwound from the unwinding shaft and then is coated on the guide roller, one end of the guide roller is connected with an unwinding servo motor, the unwinding shaft is actively driven by the guide roller to unwind, the unwinding linear speed is fixed because the diameter of the guide roller is fixed, the linear speed of the guide roller during unwinding is the unwinding speed, and one end of the unwinding shaft is connected with a left-right adjusting device; the guide roller can be a metal roller or a rubber roller, and in order to increase the unreeling stability and increase the friction force between the transfer printing carrier and the guide roller, the rubber roller is preferably selected as the guide roller.

Control adjusting device and include slider and lead screw, the slider links to each other with unwinding device one end, and threaded screw hole has been seted up to the slider below, and the slider passes through threaded screw hole and links to each other with the lead screw, through the clockwise or anticlockwise rotation of control lead screw, drives the unwinding device left and right sides that connects the slider and removes. Preferably, the screw rod can be connected with a hand wheel or a motor to control the clockwise or anticlockwise rotation of the screw rod.

Furthermore, in order to ensure the alignment accuracy, the positioning device can further comprise an automatic computer alignment system, the automatic computer alignment system comprises an automatic camera and a control center, at least one automatic camera is installed in front of the second positioning mark on the positioning plates of the part A and the part B, the automatic camera records the relative positions of the first positioning mark and the second positioning mark, the result is fed back to the control center, and left-right adjustment or longitudinal adjustment is performed according to the feedback result of the control center, so that the first alignment mark and the second alignment mark are completely overlapped.

Specifically, if the first alignment mark of the transfer carrier of the part A is coincident with the second alignment mark on the positioning plate, when the two alignment marks are coincident, the camera of the part B takes a picture, and if the first alignment mark on the transfer printing carrier of the part B is longitudinally deviated from the second alignment mark, the unwinding tension of the part B is finely adjusted immediately or the unwinding rotating speed of the servo motor is finely adjusted to be coincident by a control center (such as a computer) according to the position of the alignment line in the identified picture; on the contrary, if the part B is taken as a reference, the camera is installed at the same position of the part A, and the tension of the unwinding shaft of the part A or the unwinding rotation speed of the servo motor is finely adjusted.

The utility model further provides an above-mentioned two-sided transfer stamp positioner's operating method, a serial communication port, including following step:

firstly, respectively installing transfer printing carriers which are mirror images of each other into the unreeling devices of the part A and the part B, wherein at least the same side of two sides of the transfer printing carriers at two sides is printed with alignment marks;

respectively clinging the transfer printing carriers of the part A and the part B to the positioning plates of the part A and the part B, adjusting the positions of the transfer printing carriers of the part A and the part B through the longitudinal adjusting device and the left-right adjusting device, enabling first alignment marks on the sides of the transfer printing carriers of the part A and the part B to be coincided with second alignment marks on the positioning plates of the part A and the part B at the same time, clamping the fabric to be printed by the transfer printing carriers of the part A and the part B, and entering a transfer printing machine for transfer printing.

The alignment can be realized by means of a computer automatic alignment system in order to ensure the alignment accuracy, at present, a plurality of domestic computer automatic alignment systems are available, and the system is a famous printing automatic alignment system with a large Changzhou area and a high-accuracy printed pattern automatic tracking system with a high Xiande area.

Has the advantages that: the utility model discloses a device is simple for when the synchronous transfer seal flower of surface fabric positive and negative, mirror image flower type can coincide completely, has effectively reduced the production of wastrel.

Drawings

FIG. 1 is a schematic structural view of the double-sided printing positioning device of the present invention, wherein the arrow direction is the running direction of the carrier and the fabric;

FIG. 2 is a side view of the double-sided printing positioning device of the present invention, wherein the arrow direction is the running direction of the carrier and the fabric;

FIG. 3 is a schematic view of a left and right adjustment device;

FIG. 4 is a side view of the positional relationship of the unwind spool and the guide roll.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments.

As shown in fig. 1 and 2, a double-sided transfer printing positioning device includes two symmetrical printing unit portions a and B, each printing unit includes a carrier unwinding device 1, a transfer printing carrier 2 and a positioning plate 3, and the transfer printing carrier is loaded in the carrier unwinding device.

The transfer printing carrier 2 of the part A corresponds to the front side of the fabric 4 for transfer printing, the transfer printing carrier 2 of the part B corresponds to the back side of the fabric 4 for transfer printing, and the patterns of the transfer printing carrier 2 of the part A and the part B are mirror images. At least one side of the transfer printing carrier 2 is printed with a first alignment mark 9, each positioning plate 3 is provided with a corresponding second alignment mark, and when the first alignment mark and the second alignment mark of the part A and the part B are overlapped, the flower type patterns of the two parts of transfer printing carriers which are mirror images can be completely and accurately overlapped together.

And a longitudinal adjusting device and a left-right adjusting device are respectively arranged at the end of the carrier unreeling device 1 and are used for adjusting the positions of the transfer printing carriers 2 of the part A and the part B so as to enable the first alignment marks on the transfer printing carriers 2 to be superposed with the second alignment marks on the positioning plate 3.

Wherein, carrier unwinding device 1 can be an unreeling shaft, and vertical adjusting device sets up respectively in the both ends of unreeling the shaft with controlling adjusting device. In order to make the printing process more stable, the carrier unreeling device can also be an unreeling shaft and a guide roller 8 which are horizontally and parallelly arranged, as shown in fig. 4, the transfer printing carrier is further wrapped on the guide roller after being paid out from the unreeling shaft, one end of the guide roller is connected with a longitudinal adjusting device, and one end of the unreeling shaft is connected with a left adjusting device and a right adjusting device. During printing, the transfer printing carrier covers the guide roller, one end of the guide roller is connected with the longitudinal adjusting device to control unreeling, the unreeling linear speed is fixed due to the fixed diameter of the guide roller, the unreeling speed is the linear speed of the guide roller during unreeling, and one end of the unreeling shaft is connected with the left and right adjusting device. The guide roller can be a metal roller or a rubber roller, and in order to increase the unreeling stability and increase the friction force between the transfer printing carrier and the guide roller, the rubber roller is preferably selected as the guide roller.

The utility model discloses a vertical adjusting device can realize with tension adjusting device or unreel servo motor. Specifically, the tension adjusting device is connected to one end of the carrier unreeling device and used for controlling the unreeling tension of the unreeling device. The type of the tension adjusting device is not limited, and any device capable of controlling the unreeling tension can be used in the market, for example, a magnetic powder brake can be selected. Unreel servo motor and connect in the one end of carrier unwinding device, servo motor unreels speed and shifts stamp speed and is synchronous completely, and a part and B part at least one unreel servo motor and unreel speed size and can finely tune.

The process of longitudinal adjustment: taking the first alignment mark on the transfer printing carrier of the part A and the second alignment mark on the positioning plate as a reference when being superposed, if the first alignment mark on the transfer printing carrier of the part B has longitudinal deviation from the second alignment mark, the unwinding tension of the unwinding device can be finely adjusted manually by an operator through visual observation, or the rotating speed of the unwinding servo motor can be finely adjusted, so that the first alignment mark on the transfer printing carrier of the part B is longitudinally superposed with the second alignment mark; on the contrary, if the part B is taken as a reference, the unreeling tension of the unreeling device of the part A or the unreeling rotation speed of the servo motor is finely adjusted manually. In practical application, in order to ensure the contraposition precision, a computer automatic contraposition system can be used, at least one automatic camera is arranged in front of a second positioning mark on a positioning plate of a part A and a part B, if the first contraposition mark of a part A transfer carrier is coincident with the second contraposition mark on the positioning plate, the camera of the part B takes a picture when the two contraposition marks are coincident, if the first contraposition mark on the part B transfer printing carrier is longitudinally deviated from the second contraposition mark, the computer immediately finely adjusts the unreeling tension of the part B or finely adjusts the unreeling rotating speed of an unreeling servo motor according to the identification of the contraposition line position in the picture to make the parts coincident; on the contrary, if the part B is taken as a reference, the camera is installed at the same position of the part A, and the tension of the unwinding shaft of the part A or the unwinding rotation speed of the servo motor is finely adjusted.

The left and right adjustment means may be achieved by using a conventional lead screw movement. Specifically, as shown in fig. 3. Control adjusting device and include slider 5 and lead screw 6, threaded screw hole has been seted up to the slider below, and the slider links to each other with unwinding device one end, and the slider passes through threaded screw hole and links to each other with the lead screw, through clockwise or anticlockwise rotation of control lead screw, drives the unwinding device left and right sides removal of link block. The screw rod can be connected with a hand wheel or a servo motor to control the clockwise or anticlockwise rotation of the screw rod. The transverse position adjusting modes of the part A and the part B can be two, firstly, a hand wheel is installed on the screw rod, when a first alignment mark on a transfer printing carrier of the part A, B is respectively not coincident with a second alignment mark on a positioning plate of the part A and the part B left and right, the hand wheel is rotated clockwise or anticlockwise, the unreeling device is moved left and right, and the alignment marks are coincident; and secondly, a motor is used for driving the screw rod to rotate, an automatic camera is respectively arranged in front of the second alignment mark on the positioning plates of the parts A and B, when the first alignment mark on the transfer printing carrier is longitudinally overlapped with the second alignment mark on the positioning plates, the camera takes a picture, the control unit (computer) drives the screw rod to rotate clockwise or anticlockwise when the left and right alignment line deviations cannot be overlapped according to the position of the alignment line in the identified picture, so that the unwinding device moves left and right, and the first alignment mark is overlapped with the second alignment mark.

When the carrier unreeling device is specifically applied, the carrier unreeling device is placed on a transfer printing machine, a transfer printing carrier is tightly attached to a positioning plate before entering the transfer printing machine, and the positioning operation is carried out according to the following method:

firstly, respectively installing transfer printing carriers 2 which are mirror images into an unreeling device 1 of a part A and an unreeling device of a part B, wherein the transfer printing carriers 2 of the part A and the part B are mirror images, alignment marks are printed on the left sides of the transfer printing carriers and are attached face to face, and when the alignment marks are overlapped, flower type patterns of the transfer printing carriers 2 which are mirror images can be completely and accurately overlapped;

and then respectively clinging the transfer printing carriers 2 of the part A and the part B to the positioning plates 3 of the part A and the part B, respectively adjusting the positions of the transfer printing carriers 2 of the part A and the part B, so that the alignment marks on the edges of the transfer printing carriers of the part A and the part B are simultaneously superposed with the alignment marks on the positioning plates 3 of the part A and the part B, and the transfer printing carriers 2 of the part A and the part B clamp the fabric 4 to be printed and enter a transfer printing machine for transfer printing.

The alignment can be realized by means of a computer automatic alignment system in order to ensure the alignment accuracy, and at present, domestic computer automatic alignment systems are many, and are famous, namely a Changzhou grand printing automatic alignment system and a high-accuracy printed pattern automatic tracking system with high Xiande height.

The utility model provides a thought and method of two-sided stamp positioner, the method and the way that specifically realize this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary skilled person in this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as with moist decorations the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.

Claims

1. A positioning device for double-sided transfer printing is characterized by comprising two groups of same printing units, namely a printing unit A part and a printing unit B part, wherein each printing unit comprises a carrier unreeling device, a transfer printing carrier and a positioning plate, the transfer printing carrier is loaded on the carrier unreeling device, wherein,

2. The positioning apparatus as set forth in claim 1 wherein said carrier unwinding means is an unwinding spool.

3. The positioning device as claimed in claim 1, wherein the carrier unwinding device comprises an unwinding shaft and a guide roller which are arranged in parallel, the transfer printing carrier is wound on the guide roller after being unwound from the unwinding shaft, a longitudinal adjusting device is connected to one end of the guide roller, and a left-right adjusting device is connected to one end of the unwinding shaft.

4. The positioning device as claimed in claim 1, wherein the longitudinal adjusting device is a tension adjusting device, and the tension adjusting device is connected to one end of the carrier unwinding device for controlling the unwinding tension of the unwinding device.

5. The positioning device as claimed in claim 1, wherein the longitudinal adjustment device is an unwinding servo motor, the unwinding servo motor is connected to one end of the carrier unwinding device, the unwinding speed of the unwinding servo motor is completely synchronous with the transfer printing speed, and the unwinding speed of at least one of the unwinding servo motors in the part a and the part B can be finely adjusted.

6. The positioning device as set forth in claim 1, wherein the left-right adjusting device comprises a slider and a screw rod, a threaded screw hole is formed below the slider, the slider is connected to one end of the unwinding device, the slider is connected to the screw rod through the threaded screw hole, and the unwinding device connected to the slider is driven to move left and right by controlling the clockwise or counterclockwise rotation of the screw rod.

7. The positioning device according to claim 1, wherein the positioning device comprises a computerized automatic alignment system, the computerized automatic alignment system comprises at least one automatic camera and a control center, at least one automatic camera is installed in front of the second positioning mark on the positioning plates of the parts a and B, the automatic camera records the relative position of the first positioning mark and the second positioning mark, and feeds back the result to the control center, and the left-right adjustment or the longitudinal adjustment is performed according to the feedback result of the control center, so that the first alignment mark and the second alignment mark are completely overlapped.