A cloth transfer digital direct jet printing machine and printing process

Abstract

This invention discloses a digital direct-to-garment printing machine and printing process for fabric transfer, belonging to the field of printing machine technology. It includes a support frame with a support adjustment component, which comprises the main body of the printing machine mounted on top of the support frame. The invention uses a second and third spreading roller to transport the fabric. The fabric is dried in a heating dryer, facilitating rapid solidification of the printing ink transferred onto the fabric, thus improving printing quality and effect. By adjusting the counterweight, when the first tension spreading roller contacts the fabric, it not only tensions the fabric, keeping it taut but also prevents deformation. The first, second, and third spreading rollers, during rotation, stretch the fabric from the weft direction to both sides, thus counteracting the weft shrinkage caused by warp stretching, maintaining fabric flatness, and improving print clarity.

Description

Technical Field

[0001] This invention relates to the field of printing machine technology, specifically to a fabric transfer digital direct-to-garment printing machine and printing process. Background Technology

[0002] Digital direct-to-garment printing is a new type of printing technology that uses digital inkjet technology. It inputs the desired pattern into a computer via various digital input methods such as scanners, digital cameras, or digital images transmitted over the internet. After editing by a raster image processor, dedicated software drives a chip to control the printing system, directly printing specialized digital inkjet inks (water-based environmentally friendly pigment inks or reactive or disperse dye inks) onto various fabrics or other media, thus obtaining the desired exquisite printed products. Digital printing technology eliminates the need for the traditional back-and-forth conversion between digital and analog quantities in color separation, drawing, film making, and screen making. It integrates multiple disciplines such as electronic information, computer science, and mechanics.

[0003] Currently, traditional printing processes are widely used on large machines, which are complex and require significant manpower and resources to operate on production lines. Furthermore, the large amounts of wastewater generated cause ongoing environmental damage. Therefore, how to apply digital inkjet printing technology to smaller machines, reducing their footprint, saving energy and costs, simplifying existing production processes, preventing fabric deformation after printing, and ensuring the stability and energy efficiency of digital printing results are technical problems that urgently need to be solved by those skilled in the art. Summary of the Invention

[0004] This invention provides a digital direct-to-garment printing machine and printing process for fabric transfer, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fabric transfer digital direct-to-garment printing machine, comprising a support frame, wherein a support adjustment component is provided on the support frame.

[0006] The support and control assembly includes a printing machine body mounted on top of a support frame. A fabric feeding roller is mounted on one side of the support frame, and a fabric receiving roller is mounted at the bottom of the fabric feeding roller. A first tension swing arm is mounted inside the support frame, and a second tension swing arm is mounted at the bottom of the first tension swing arm. A slide rod is bolted to the first tension swing arm, and several position-adjustable counterweight plates are slidably connected to the slide rod. Several counterweight discs are rotatably connected to the counterweight plates. A first tension expansion roller for leveling is rotatably connected to one side of both the first and second tension swing arms.

[0007] The printing machine body contains a printing main beam. A light axis platform is located on one side of the bottom of the printing main beam and is bolted to the printing machine body. Several paper pressers are located on one side of the printing main beam, and each paper presser has a paper presser bracket on one side. A pressure plate is rotatably connected to the bottom of each paper presser, and two pressure rollers for applying pressure are rotatably connected to the pressure plate. A limiting roller for flattening the fabric is rotatably connected between each pair of adjacent pressure plates. The light axis platform contains a suction device for inkjet printing. The attached felt has a platform pressing plate on both sides of its top for flattening and stretching the fabric. The platform pressing plate is magnetically attached to the optical axis platform. The optical axis platform has optical rods on both sides of its top for supporting the fabric. An angle sensor for angle sensing is provided at one end of the first tensioning swing arm and the second tensioning swing arm. Each angle sensor is bolted to the support frame. Synchronous wheels are rotatably connected to both ends of the first tensioning swing arm and the second tensioning swing arm. The synchronous wheels are embedded in the support frame.

[0008] As can be seen, in the above technical solution, the fabric is conveyed by the rotation of the second tension expansion roller and the third spreading roller, and then dried by the heating dryer, which facilitates the rapid solidification of the print on the fabric, improving the printing quality and effect. The fabric comes into contact with the first tension swing arm and the second tension swing arm. By installing an appropriate number of counterweight plates and counterweight discs on the slide bar, the first tension swing arm is counterweighted in the opposite direction, so that it finds the tension balance point. By adjusting the counterweight, when the first tension expansion roller comes into contact with the fabric, the first tension expansion roller can not only tension the fabric, keeping it in a taut state, but also prevent the fabric from being deformed.

[0009] Optionally, in one possible implementation, a second tension spreading roller for conveying fabric is rotatably connected to one side of the printing machine body, and a third spreading roller for conveying fabric is provided on the other side of the printing machine body. A first limiting tension roller for supporting the fabric is provided on one side of the second tension spreading roller. The first limiting tension roller is rotatably connected to the printing machine body, and both the second tension spreading roller and the third spreading roller have pulley sets at their bottoms, respectively connected to the second tension spreading roller and the third spreading roller. An electric push rod is provided on one side of the bottom of the optical axis platform, and the electric push rod is located inside the printing machine body. One side of the cavity is hinged to the main body of the printing machine, and the output end of the electric push rod is hinged to a hinge rod. One end of the hinge rod extends to the bottom of the printing main beam. The hinge rod is hinged to the pressure plate through a rotating shaft. A connecting sleeve is embedded in one side of the paper presser. Springs are provided on both sides of the pressure plate, and one end of each spring is hooked on the paper presser. A heat insulation cover is installed on one side of the support frame by bolts. A heating dryer for heating is provided inside the heat insulation cover. A rubber strip spreading roller for flattening the fabric is provided on one side of the bottom of the support frame. The rubber strip spreading roller is rotatably connected to the support frame. A second limiting tensioning shaft roller for tensioning the fabric is embedded in the support frame.

[0010] As can be seen, in the above technical solution, the output end of the electric push rod extends to drive the hinge rod to deflect. When the hinge rod deflects, it drives the pressure plate to deflect, which in turn enables the paper presser and pressure roller to press and flatten the fabric, and print on the fabric. Meanwhile, the optical axis platform collects excess ink on the fabric, and the pattern is transferred to the fabric. When the first tension spreading roller, the second tension spreading roller, and the third spreading roller rotate, they stretch the fabric from the weft direction to both sides, thereby offsetting the weft shrinkage caused by the stretching of the warp threads, maintaining the flatness of the fabric, improving the clarity of the print, and effectively preventing the deformation of the printed pattern, ensuring the stability and aesthetics of the printing effect.

[0011] A printing process using the aforementioned fabric transfer digital direct-to-garment printer includes the following steps.

[0012] Step 1: The staff installs the device in the designated location. During transfer printing, the fabric is placed on the feeding roller. One end of the fabric is supported by the second limiting tension roller, then supported by the first tension expansion roller on the first tension swing arm, then passed through the bottom of the first limiting tension roller and through the optical axis platform via the second tension expansion roller, then through the heat insulation cover via the third spreading roller, and after being limited by the first tension expansion roller on the second tension swing arm, it is flattened by the adhesive strip expansion roller and wound onto the take-up roller.

[0013] Step two involves the second tension spreading roller rotating in the reverse direction to expand the fabric, and the third spreading roller rotating in the forward direction to transport the fabric. The fabric is then dried by a heating dryer, which facilitates the rapid solidification of the printed material on the fabric, ensuring the quality and effect of the printing.

[0014] Step three, during device use, is activated by an electric push rod. The output end of the electric push rod extends and drives the hinge rod to deflect. When the hinge rod deflects, it drives the pressure plate to deflect, thereby allowing the paper presser and pressure roller to press and flatten the fabric, printing the pattern onto it. Meanwhile, the optical axis platform collects excess ink on the fabric, transferring the pattern onto the fabric. At the same time, the optical rod ensures that the printed material moves smoothly and is not damaged, and the spring allows the paper presser to continuously apply pressure to the material, ensuring stability during material transport and printing.

[0015] Step four: During the conveying process, the fabric comes into contact with the first and second tension swing arms. By installing an appropriate number of counterweight plates and counterweight discs on the slide bar, the first tension swing arm is counterweighted in the opposite direction, achieving a dynamic and continuous balancing process. By adjusting the counterweights, when the first tension spreading roller comes into contact with the fabric, it not only tensions the fabric, keeping it taut, but also prevents it from deforming. Furthermore, the counterweights in contact with the second tension swing arm tighten the fabric to achieve tension balance, preventing wrinkles during unwinding and rewinding.

[0016] Step 5: When the first and second tension swing arms are deflected by force, they can drive the synchronous wheel to rotate and be sensed by the angle sensor, which makes it easy to determine the position of the first and second tension swing arms. It is also easy for the belt pulley group to control the second tension expansion roller and the third spreading shaft roller to rotate forward or backward via the motor, which makes it easy to spread the fabric flat and maintain constant tension of the material.

[0017] Step six involves the first tension spreading roller and the second tension spreading roller rotating in opposite directions, while the third spreading roller rotates in the forward direction. This causes the first tension spreading roller, the second tension spreading roller, and the third spreading roller to stretch the fabric from the weft direction to both sides during rotation. This counteracts the weft shrinkage caused by the stretching of the fabric along the warp, maintains the flatness of the fabric, improves the clarity of the print, and effectively prevents the deformation of the printed pattern, ensuring the stability and aesthetics of the print effect.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. The present invention uses a second tension spreading roller and a third spreading roller to transport the fabric, and then uses a heating dryer to dry the fabric, which facilitates the rapid solidification of the printed material on the fabric and improves the printing quality and effect.

[0020] 2. The output end of the electric push rod of the present invention extends to drive the hinge rod to deflect. When the hinge rod deflects, it drives the pressure plate to deflect, thereby enabling the paper presser and pressure roller to press the fabric and print on the fabric. Meanwhile, the optical axis platform collects excess ink on the fabric, and the pattern is transferred to the fabric, improving printing efficiency.

[0021] 3. In this invention, the fabric comes into contact with the first tension swing arm and the second tension swing arm. By installing an appropriate number of counterweight plates and counterweight discs on the slide bar, the first tension swing arm is counterweighted in the opposite direction to find its balance point. By adjusting the counterweight, when the first tension expansion roller comes into contact with the fabric, the first tension expansion roller can not only tension the fabric and keep it in a taut state, but also prevent the fabric from being deformed.

[0022] 4. When the first tension spreading roller, the second tension spreading roller, and the third spreading roller of the present invention rotate, they stretch the fabric from the weft direction to both sides, thereby offsetting the weft shrinkage caused by the stretching of the fabric on the warp, maintaining the flatness of the fabric, improving the clarity of the print, and effectively preventing the deformation of the printed pattern, ensuring the stability and aesthetics of the print effect.

[0023] 5. The limiting wheel of this invention abuts against the fabric to prevent wrinkles from forming during printing. The felt can also absorb excess ink to ensure inkjet quality. Furthermore, the position of the platform pressure plate can be adjusted by a magnet, making it easy for the platform pressure plate to press and flatten both sides of the fabric to ensure the flatness of the fabric during transport and inkjet printing.

[0024] In summary, through the coordinated use of various structures, the second tension spreading roller and the third spreading shaft roller rotate to transport the fabric. The fabric is then dried by a heating dryer, facilitating rapid solidification of the printed material and improving printing quality and effect. When the hinge rod deflects, it drives the pressure plate to deflect, allowing the paper presser and pressure roller to apply pressure to the fabric for printing. Meanwhile, the optical axis platform collects excess ink from the fabric, transferring the pattern to the fabric and improving printing efficiency. By installing an appropriate number of counterweight plates and counterweight discs on the slide bar, the printing process is accelerated. The counterweight function of the swing arm helps it find a balance point. By adjusting the counterweight, when the first tension spreading roller comes into contact with the fabric, it not only tensions the fabric, keeping it taut, but also prevents it from deforming. When the first tension spreading roller, the second tension spreading roller, and the third spreading roller rotate, they stretch the fabric from the weft direction to both sides, thereby counteracting the weft shrinkage caused by the stretching of the warp threads. This maintains the flatness of the fabric, improves the clarity of the print, and effectively prevents the deformation of the printed pattern, ensuring the stability and aesthetics of the print effect. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of this invention, the accompanying drawings used in some embodiments of this invention will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings. Furthermore, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a side view of the overall structure of the present invention.

[0028] Figure 3 This is a cross-sectional view of the overall structure of the present invention.

[0029] Figure 4 This is a schematic diagram showing the third spreading roller, printing main beam, optical axis platform, paper press bracket, and pressure roller installed together as provided by the present invention.

[0030] Figure 5 The first perspective view of the tension swing arm, the first tension expansion roller, the slide bar, the counterweight plate, the counterweight disc, the angle sensor, and the synchronous wheel provided for this invention.

[0031] Figure 6 This is a schematic diagram showing the paper presser, paper presser bracket, pressure plate, pressure roller and spring provided by the present invention installed together.

[0032] Figure 7 Provided by the present invention Figure 6 Exploded view.

[0033] Figure 8 This is a cross-sectional view of the optical axis platform of the present invention.

[0034] In the diagram: 1. Support frame; 2. Printing machine body; 3. Take-up roller; 4. Feed-out roller; 5. First tensioning swing arm; 6. Second tensioning swing arm; 7. Slide rod; 8. Counterweight plate; 9. Counterweight disc; 10. First tension spreading roller; 11. Angle sensor; 12. Synchronous pulley; 13. Second tension spreading roller; 14. First limit tensioning shaft roller; 15. Third fabric spreading shaft roller; 16. Pulley assembly; 17. Electric push rod; 18. Hinge rod; 19. Printing main beam; 20. Optical axis platform; 21. Paper presser; 22. Connecting sleeve; 23. Paper presser bracket; 24. Pressure plate; 25. Pressure roller; 26. Spring; 27. Heat insulation cover; 28. Heating dryer; 29. ​​Adhesive strip expansion roller; 30. Second limit tensioning shaft roller; 31. Felt; 32. Platform pressure plate; 33. Limiting wheel; 34. Magnet; 35. Optical rod; 36. Rotating shaft. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figure 1 - Figure 8 The illustrated digital direct-to-garment printing machine for fabric transfer utilizes a support and control assembly on a support frame 1. The second tension spreading roller 13 and the third spreading roller 15 rotate to transport the fabric. The fabric is then dried by a heating dryer 28, facilitating rapid solidification of the printed pattern and improving printing quality and effect. When the hinge rod 18 deflects, it drives the pressure plate 24 to deflect, which in turn allows the paper presser 21 and pressure roller 25 to apply pressure to the fabric for printing. The optical axis platform 20 collects excess ink from the fabric, transferring the pattern to the fabric and improving printing efficiency. By installing an appropriate number of counterweight plates 8 and counterweight discs 9 on the slide rod 7, the printing process is further enhanced. The first tension swing arm 5 is now equipped with a reverse counterweight function to find its balance point. By adjusting the counterweight, when the first tension spreading roller 10 comes into contact with the fabric, the first tension spreading roller 10 can not only tension the fabric, keeping it taut, but also prevent the fabric from being deformed. When the first tension spreading roller 10, the second tension spreading roller 13, and the third spreading roller 15 rotate, they stretch the fabric from the weft direction to both sides, thereby offsetting the weft shrinkage caused by the stretching of the warp threads, maintaining the flatness of the fabric, improving the clarity of the print, and effectively preventing the deformation of the printed pattern, ensuring the stability and aesthetics of the print effect. The specific structural settings of the components are as follows.

[0037] The support and control assembly includes a printing machine body 2 mounted on top of a support frame 1. A feeding roller 4 for feeding fabric is mounted on one side of the support frame 1, and a receiving roller 3 for receiving fabric is mounted at the bottom of the feeding roller 4. A first tension swing arm 5 is mounted inside the support frame 1, and a second tension swing arm 6 is mounted at the bottom of the first tension swing arm 5. A slide rod 7 is bolted to the first tension swing arm 5, and several position-adjustable counterweight plates 8 are slidably connected to the slide rod 7. Several counterweight discs 9 are rotatably connected to the counterweight plates 8. A first tension expansion roller 10 for leveling is rotatably connected to one side of both the first tension swing arm 5 and the second tension swing arm 6.

[0038] The main body 2 of the printing machine is equipped with a printing main beam 19. A light axis platform 20 is provided on one side of the bottom of the printing main beam 19. The light axis platform 20 is installed in the main body 2 of the printing machine by bolts. Several paper pressers 21 are provided on one side of the printing main beam 19, and a paper presser bracket 23 is provided on one side of each paper presser 21. A pressure plate 24 is rotatably connected to the bottom of the paper presser 21. Two pressure rollers 25 for applying pressure are rotatably connected to the pressure plate 24. A limiting roller 33 for flattening the fabric is rotatably connected between each two adjacent pressure plates 24. A felt 31 for adsorbing ink is provided in the light axis platform 20. Platform pressing plates 32 for flattening and stretching the fabric are provided on both sides of the top of the felt 31. The platform pressing plates 32 are adsorbed on the light axis platform 20 by magnets 34. A light rod 35 for supporting the fabric is provided on both sides of the top of the light axis platform 20. The purpose of the guide rod 35 is to ensure that the printed material moves smoothly and evenly, and to protect the material from damage. An angle sensor 11 for angle sensing is provided at one end of both the first tension swing arm 5 and the second tension swing arm 6, and each angle sensor 11 is bolted to the support frame 1. Synchronous wheels 12 are rotatably connected to both ends of the first tension swing arm 5 and the second tension swing arm 6, and the synchronous wheels 12 are embedded in the support frame 1.

[0039] A second tension spreading roller 13 for conveying fabric is rotatably connected to one side of the printing machine body 2. A third spreading roller 15 for conveying fabric is provided on the other side of the printing machine body 2. A first limiting tension roller 14 for supporting fabric is provided on one side of the second tension spreading roller 13. The first limiting tension roller 14 is rotatably connected to the printing machine body 2. The bottoms of both the second tension spreading roller 13 and the third spreading roller 15 are respectively provided with supports for the second tension spreading roller 13. The pulley group 16 connected to the third spreading roller 15, the bottom side of the optical axis platform 20 is provided with an electric push rod 17, the electric push rod 17 is located on one side of the inner cavity of the printing machine body 2 and is hinged to the printing machine body 2, and the output end of the electric push rod 17 is hinged with a hinge rod 18, one end of the hinge rod 18 extends to the bottom of the printing main beam 19, and the hinge rod 18 is hinged to the pressure plate 24 through the rotating shaft 36. The rotating shaft 36 passes through and fixes multiple pressure plates 24, and is rotatably connected in the paper presser 21. A connecting sleeve 22 is embedded on one side of the paper presser 21. Springs 26 are provided on both sides of the pressure plate 24, and one end of each spring 26 is hooked onto the paper presser 21. A heat insulation cover 27 is installed on one side of the support frame 1 by bolts. A heating dryer 28 for heating is provided inside the heat insulation cover 27. A rubber strip expansion roller 29 for flattening the fabric is provided on one side of the bottom of the support frame 1. The rubber strip expansion roller 29 is rotatably connected to the support frame 1. A second limiting tensioning roller 30 for tensioning the fabric is embedded inside the support frame 1.

[0040] A printing process using the aforementioned fabric transfer digital direct-to-garment printer includes the following steps.

[0041] Step 1: The staff installs the device at the designated location. During the transfer printing process, the fabric is placed on the fabric feeding roller 4. One end of the fabric is supported by the second limiting tension roller 30, then supported by the first tension expansion roller 10 on the first tension swing arm 5, then passed through the bottom of the first limiting tension roller 14 and through the optical axis platform 20 via the second tension expansion roller 13, then through the heat insulation cover 27 via the third spreading roller 15, and after being limited by the first tension expansion roller 10 on the second tension swing arm 6, it is flattened by the adhesive strip expansion roller 29 and wound onto the take-up roller 3.

[0042] Step two: The fabric is conveyed by the rotation of the second tension spreading roller 13 and the third spreading roller 15, and then dried by the heating dryer 28, which facilitates the rapid solidification of the print on the fabric and improves the printing quality and effect.

[0043] Step three, and during use, the device is activated by the electric push rod 17. The output end of the electric push rod 17 extends and drives the hinge rod 18 to deflect. When the hinge rod 18 deflects, the rotating shaft 36 deflects, causing the pressure plate 24 to deflect. This allows the paper presser 21 and the pressure roller 25 to apply pressure to the fabric, ensuring a uniform and dense pressure distribution to prevent fraying. Meanwhile, the optical axis platform 20 collects excess ink on the fabric, transferring the pattern onto the fabric. At the same time, the optical rod 35 ensures that the printed material moves smoothly and is not damaged, and the spring 26 allows the paper presser 21 to continuously apply pressure to the material, ensuring the stability of material transport and printing.

[0044] Step four: During the conveying process, the fabric comes into contact with the first tension swing arm 5 and the second tension swing arm 6. By installing an appropriate number of counterweight plates 8 and counterweight discs 9 on the slide bar 7, the first tension swing arm 5 is counterweighted in the opposite direction, achieving a dynamic and continuous balancing process. The counterweight in contact with the second tension swing arm 6 pulls the fabric tight. By adjusting the counterweight, when the first tension expansion roller 10 comes into contact with the fabric, the first tension expansion roller 10 can not only tension the fabric, keeping it in a taut state, but also prevent the fabric from being deformed.

[0045] Step 5: When the first tension swing arm 5 and the second tension swing arm 6 are deflected by force, they can drive the synchronous wheel 12 to rotate and be sensed by the angle sensor 11, which makes it easy to determine the position of the first tension swing arm 5 and the second tension swing arm 6. It is also easy for the belt pulley group 16 to control the second tension expansion roller 13 and the third spreading shaft roller 15 to rotate forward or backward via the motor, which makes it easy to spread the fabric flat and maintain constant tension of the material.

[0046] Step six involves the first tension spreading roller 10 and the second tension spreading roller 13 rotating in opposite directions, while the third spreading roller 15 rotates in the forward direction. This causes the first tension spreading roller 10, the second tension spreading roller 13, and the third spreading roller 15 to stretch the fabric from the weft direction to both sides during rotation. This counteracts the weft shrinkage caused by the stretching of the fabric along the warp, maintains the flatness of the fabric, improves the clarity of the print, and effectively prevents the deformation of the printed pattern, ensuring the stability and aesthetics of the print effect.

[0047] According to the above structure, when in use, the fabric is placed on the feeding roller 4, and one end of the fabric is supported by the second limiting tension roller 30. Then, it is supported by the first tension expansion roller 10 on the first tension swing arm 5, and then passes through the bottom of the first limiting tension roller 14 and through the optical axis platform 20 via the second tension expansion roller 13. After passing through the heat insulation cover 27 via the third spreading roller 15, it is limited by the first tension expansion roller 10 on the second tension swing arm 6 and then wound onto the receiving roller 3. The fabric is conveyed by the rotation of the second tension expansion roller 13 and the third spreading roller 15, and then dried by the heating dryer 28.

[0048] When the device is in use, it is started by the electric push rod 17. The output end of the electric push rod 17 extends and drives the hinge rod 18 to deflect. When the hinge rod 18 deflects, it drives the pressure plate 24 to deflect, which in turn allows the paper presser 21 and the pressure roller 25 to press the fabric and print on it. The optical axis platform 20 collects excess ink on the fabric. The fabric is in contact with the first tension swing arm 5 and the second tension swing arm 6. By installing an appropriate number of counterweight plates 8 and counterweight discs 9 on the slide rod 7, the first tension swing arm 5 is counterweighted in the opposite direction to find the balance point. This keeps the fabric taut without deforming it. When the first tension expansion roller 10, the second tension expansion roller 13 and the third spreading roller 15 rotate, they stretch the fabric from the weft direction to both sides, thereby offsetting the weft shrinkage caused by the stretching of the warp and maintaining the flatness of the fabric.

[0049] Unlike existing technologies, this application discloses a fabric transfer digital direct-to-garment printing machine. The fabric is conveyed by the rotation of the second tension spreading roller 13 and the third spreading roller 15. The fabric is then dried by the heating dryer 28, facilitating rapid solidification of the printed image and improving printing quality and effect. When the hinge rod 18 deflects, it drives the pressure plate 24 to deflect, which in turn allows the paper pressurer 21 and pressure roller 25 to apply pressure to the fabric for printing. The optical axis platform 20 collects excess ink from the fabric, transferring the pattern to the fabric and improving printing efficiency. This is achieved by installing an appropriate number of counterweights 8 on the slide rod 7. The counterweight plate 9 provides reverse counterweight to the first tensioning swing arm 5, helping it find its balance point. By adjusting the counterweight, when the first tension spreading roller 10 comes into contact with the fabric, it not only tensions the fabric, keeping it taut, but also prevents it from deforming. When the first tension spreading roller 10, the second tension spreading roller 13, and the third spreading roller 15 rotate, they stretch the fabric from the weft direction to both sides, thus counteracting the weft shrinkage caused by the stretching of the warp threads. This maintains the flatness of the fabric, improves the clarity of the print, and effectively prevents the deformation of the printed pattern, ensuring the stability and aesthetics of the print effect.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A digital direct-to-garment printing machine for fabric transfer, comprising a support frame, characterized in that: The support frame is equipped with a support adjustment component; The support and control assembly includes a printing machine body mounted on top of a support frame, a feeding roller mounted on one side of the support frame, a taking-up roller mounted at the bottom of the feeding roller, a first tension swing arm mounted inside the support frame, a second tension swing arm mounted at the bottom of the first tension swing arm, a slide rod mounted on the first tension swing arm by bolts, a plurality of position-adjustable counterweight plates slidably connected to the slide rod, a plurality of counterweight discs rotatably connected to the counterweight plates, and a first tension expansion roller rotatably connected to one side of both the first and second tension swing arms. The main body of the printing machine is equipped with a printing main beam. A light axis platform is provided on one side of the bottom of the printing main beam. Several paper pressers are provided on one side of the printing main beam, and a paper presser bracket is provided on one side of each paper presser. A pressure plate is rotatably connected to the bottom of the paper presser. Two pressure rollers are rotatably connected to the pressure plate. A limiting roller for flattening the fabric is rotatably connected between each two adjacent pressure plates. A felt for adsorbing inkjet is provided inside the light axis platform. Platform pressing plates for flattening and stretching the fabric are provided on both sides of the top of the felt. The platform pressing plates are adsorbed onto the light axis platform by magnets. Light rods for supporting the fabric are provided on both sides of the top of the light axis platform. A second tension spreading roller for conveying fabric is rotatably connected to one side of the main body of the printing machine, and a third spreading roller for conveying fabric is provided on the other side of the main body of the printing machine. An electric push rod is provided on one side of the bottom of the optical axis platform. The electric push rod is located on one side of the inner cavity of the printing machine body and is hinged to the printing machine body. A hinge rod is hinged to the output end of the electric push rod. One end of the hinge rod extends to the bottom of the printing main beam, and the hinge rod is hinged to the pressure plate through a rotating shaft.

2. The fabric transfer digital direct-to-garment printing machine as described in claim 1, characterized in that: An angle sensor for angle sensing is provided at one end of both the first and second tension swing arms, and each angle sensor is mounted on the support frame by bolts.

3. The fabric transfer digital direct-to-garment printing machine as described in claim 2, characterized in that: Both ends of the first and second tension swing arms are rotatably connected to synchronous wheels, which are embedded in the support frame.

4. The fabric transfer digital direct-to-garment printing machine as described in claim 3, characterized in that: A first limiting tension roller for supporting the fabric is provided on one side of the second tension expansion roller. The first limiting tension roller is rotatably connected to the main body of the printing machine. The bottom of the second tension expansion roller and the third spreading roller are respectively provided with a pulley group connected to the second tension expansion roller and the third spreading roller. The second limiting tension roller for tensioning the fabric is embedded in the support frame.

5. The fabric transfer digital direct-to-garment printing machine as described in claim 4, characterized in that: A connecting sleeve is embedded on one side of the paper presser, and springs are provided on both sides of the pressure plate, with one end of each spring hooked onto the paper presser.

6. The fabric transfer digital direct-to-garment printing machine as described in claim 5, characterized in that: A heat insulation cover is bolted to one side of the support frame, and a heating dryer for drying is installed inside the heat insulation cover.

7. The fabric transfer digital direct-to-garment printing machine as described in claim 6, characterized in that: A fabric spreading roller is provided on one side of the bottom of the support frame for spreading the fabric, and the fabric spreading roller is rotatably connected to the support frame.

8. A printing process using the fabric transfer digital direct-to-garment printing machine as described in claim 7, characterized in that: Includes the following steps, Step 1: Place the fabric on the fabric feeding roller, support one end of the fabric with the second limiting tension roller, then support it with the first tension expansion roller on the first tension swing arm, pass through the bottom of the first limiting tension roller and through the optical axis platform via the second tension expansion roller, then pass through the heat insulation cover via the third spreading roller, and after being limited by the first tension expansion roller on the second tension swing arm, it is flattened by the rubber strip expansion roller and wound onto the take-up roller; Step two: The fabric is conveyed by the second tension spreading roller rotating in the opposite direction and the third spreading roller rotating in the forward direction, and then dried by the heating dryer. Step 3. When the device is in use, it is started by an electric push rod. The output end of the electric push rod extends and drives the hinge rod to deflect. When the hinge rod deflects, it drives the pressure plate to deflect, which in turn enables the paper presser and pressure roller to press the fabric, so that the pressure is evenly and densely distributed, while the optical axis platform collects the excess ink on the fabric. Step 4: The fabric comes into contact with the first and second tight swing arms. By installing an appropriate number of counterweight plates and counterweight discs on the slide bar, the first tight swing arm is counterweighted in the opposite direction, achieving a dynamic and continuous balancing process. This keeps the fabric taut without deforming it, and the counterweights in contact with the second tight swing arm tighten the fabric. Step 5, and when the first and second tension swing arms are deflected by force, they can drive the synchronous wheel to rotate and be sensed by the angle sensor, which makes it easy to determine the position of the first and second tension swing arms. It is also easy for the belt pulley group to control the second tension expansion roller and the third spreading shaft roller to rotate forward or backward via the motor, which makes it easy to spread the fabric flat. Step six: The first tension spreading roller and the second tension spreading roller rotate in opposite directions, and the third spreading roller rotates in the forward direction. When rotating, the fabric is stretched to both sides from the weft direction, thereby offsetting the weft shrinkage caused by the stretching of the warp threads and maintaining the flatness of the fabric.

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