A device for printing on a textile

Abstract

The present application relates to the technical field of textile printing, and particularly relates to a needle textile printing device. The device comprises a base, one side wall of the base is provided with a winding motor, the output end of the winding motor is connected with a winding roller for winding the cloth; the top end of the base is symmetrically provided with two groups of vertical plates, the vertical plates are provided with directional rollers, and the other end of the vertical plates is provided with a unwinding roller; two groups of moving loading mechanisms are symmetrically arranged with the cloth as the center, the moving trajectories of the front and back digital printing heads are completely synchronized through the mechanical linkage of synchronous wheels, synchronous belts and lead screws, two groups of digital printing heads are driven by the two groups of moving loading mechanisms to simultaneously perform synchronous printing operation on the two sides of the cloth, the device can complete double-sided printing through single cloth feeding by only clamping the cloth once, the double-sided printing efficiency is effectively improved, the double-sided printing is synchronized and symmetrical, and thus the precision of double-sided printing is improved.

Description

Technical Field

[0001] This invention belongs to the field of textile printing technology, and specifically relates to a printing device for knitted textiles. Background Technology

[0002] In the production of knitted and textile fabrics, decorative patterns such as designs need to be printed on the fabric. Traditional printing equipment can only perform single-sided printing operations when the fabric is clamped once. When double-sided printing is performed, it is necessary to air dry the fabric and then reverse roll it up and repeat the clamping process. The operation is complicated and cannot guarantee the symmetry of double-sided printing, which greatly affects the processing efficiency and the accuracy of double-sided printing.

[0003] A search revealed that in the prior art, patent document CN220785195U, published on April 16, 2024, discloses a textile printing device, including a base. Four support legs are fixedly installed at the bottom of the base, two side guard plates are fixedly installed at the top of the base, a third mounting plate is fixedly installed between the side guard plates, a placement plate is fixedly installed on the top of the third mounting plate, and a second mounting plate is provided on the top of the side guard plates. Two mounting rods are provided on both sides of the top of the base, and a placement block is provided on the side of each mounting rod that is relatively close to the other. This invention provides overall support through the support legs, mounts the third mounting plate through the side guard plates, supports the textile through the third mounting plate, and supports the fabric roller through the placement frame and winding frame. The fabric roller is fed into the top of the placement frame through the cooperation between the mounting rods and the placement blocks, while the fabric roller is removed from the top of the winding frame.

[0004] However, the device still has the following drawbacks: although it can print on knitted textiles, it can only perform single-sided printing on a single clamping of the fabric. When printing on both sides, it is necessary to air dry the fabric, then reverse the winding and repeat the clamping process. This makes the operation complicated and cannot guarantee the symmetry of the double-sided printing, which greatly affects the processing efficiency and the accuracy of the double-sided printing. Summary of the Invention

[0005] To address the above problems, the present invention provides a textile printing device, including a base, a winding motor mounted on one side wall of the base, and a winding roller for winding the fabric being driven connected to the output end of the winding motor.

[0006] The inner wall of the base is provided with a tension detection mechanism for detecting the fabric tension.

[0007] The base has two sets of vertical plates symmetrically arranged at its top, and directional rollers are installed on the two sets of vertical plates. Unwinding rollers are arranged at the other end of the two sets of vertical plates.

[0008] A processing assembly and a traction assembly are also provided between the two sets of uprights. The processing assembly includes a drying mechanism for quickly drying the printed fabric, two sets of moving loading mechanisms, and a printing mechanism.

[0009] The two sets of mobile loading mechanisms are arranged in a mirror image with the fabric between the directional roller and the tension detection mechanism as the center;

[0010] The mobile loading mechanism includes two sets of synchronous pulleys, each set of synchronous pulleys is fixedly connected to a lead screw, and each set of lead screws is threaded with an internal thread block.

[0011] A printing box is fixedly connected to the internal threaded block, and a digital printing head is installed on the side wall of the printing box near the fabric.

[0012] Furthermore, the tension detection mechanism is located on one side of the take-up roller. The tension detection mechanism includes two sets of sliders and a tension roller. The tension roller is rotatably connected between the two sets of sliders. Slide grooves are provided on both inner walls of the base. Slide shafts are fixedly connected to the inner walls of the two sets of slide grooves. The two sets of sliders are respectively sleeved on the corresponding set of slide shafts. Tension springs are provided between the two sets of sliders and the top of the inner walls of the two sets of slide grooves. The two sets of tension springs are respectively sleeved on the corresponding set of slide shafts. A tension sensor is installed at one end of each set of tension springs.

[0013] Furthermore, the air-drying mechanism includes a fan, which is installed on the side wall of a set of upright plates. The air inlet of the fan is provided with a filter screen, and the air outlet of the fan is connected to a heater. Both air outlets of the heater are connected to air guide hoses. A fixing rod is installed on one side wall of the internal thread block, and a mounting ring is provided at the bottom of the fixing rod. An air-drying hood is installed on the mounting ring. The air outlet of the air-drying hood faces the surface of the fabric, and the air inlet of the air-drying hood is connected to one end of the air guide hose.

[0014] Furthermore, the printing mechanism includes a pigment box containing several sets of ink cartridges. Each set of ink cartridges stores pigments of different colors. Each set of ink cartridges is connected to two sets of ink guide tubes, which extend to a corresponding set of printing boxes. Two sets of limiting rings are installed on one side wall of the printing box, and first abutment blocks are provided on both side walls of the printing box.

[0015] Furthermore, both sets of synchronous pulleys are fitted with synchronous belts, and a first servo motor is installed on one set of vertical plates. The output end of the first servo motor is connected to one end of a set of lead screws. Two sets of limit frames are fixedly connected to both sets of vertical plates, and a limit shaft is fixedly connected between the two sets of limit frames.

[0016] Furthermore, the traction assembly includes two sets of fixing plates, which are respectively mounted on a corresponding set of upright plates, and a first touch switch is installed on one side wall opposite to the other set of fixing plates.

[0017] Furthermore, each of the two sets of fixed plates is equipped with an L-shaped bracket, and each of the two sets of L-shaped brackets is equipped with a second servo motor. The second servo motor is electrically connected to the first touch switch. The output end of the second servo motor is driven by a threaded rod, and a moving block is threadedly connected to the threaded rod. A first fixed shaft is provided between the bottom end of the L-shaped bracket and the fixed plate. The moving block is movably fitted with the first fixed shaft. A traction length control mechanism is provided on one set of L-shaped brackets, and a positioning mechanism is provided between the two sets of moving blocks.

[0018] Furthermore, the traction length control mechanism includes an electric push rod, which is installed at the bottom of the L-shaped bracket. The output end of the electric push rod is connected to a second touch switch, which is electrically connected to a second servo motor. A first slip ring is fixedly connected to one side of the second touch switch, and the first slip ring is sleeved on a first fixed shaft.

[0019] Furthermore, a second slip ring is sleeved on the first fixed shaft. One side of the second slip ring is fixedly connected to the side wall of the moving block, and a linkage block is fixedly connected to the other side of the second slip ring. A second abutment block is provided at the top of the linkage block, and the second abutment block moves in contact with the second touch switch.

[0020] Furthermore, the positioning mechanism includes two sets of positioning blocks, each set of positioning blocks being fixedly connected to a side wall opposite to a corresponding set of moving blocks. An adjustment groove is provided within each positioning block, and a second fixed shaft is provided within the adjustment groove. Two sets of strip plates are slidably connected to the second fixed shaft, and a contact spring is provided between the two sets of strip plates. The contact spring is sleeved on the second fixed shaft. A strip-shaped metal plate is fixedly connected to one set of strip plates, and a strip-shaped electromagnet is installed on the other set of strip plates. When energized, the strip-shaped electromagnet attracts the strip-shaped metal plate. The strip-shaped metal plate and the strip-shaped electromagnet are respectively located on both sides of the fabric.

[0021] The beneficial effects of this invention are:

[0022] 1. Two sets of moving loading mechanisms are arranged symmetrically around the fabric. Through the mechanical linkage of synchronous pulleys, synchronous belts and lead screws, the movement trajectory of the front and back digital printing heads is completely synchronized. The two sets of moving loading mechanisms drive the two sets of digital printing heads to simultaneously perform synchronous printing operations on both sides of the fabric. This allows the device to complete double-sided printing in a single pass with only one clamping of the fabric, effectively improving the efficiency of double-sided printing while ensuring synchronous and symmetrical double-sided printing, thereby improving the accuracy of double-sided printing.

[0023] 2. The tension roller is driven by the slider to float up and down along the sliding shaft. The deformation of the tension spring is converted into an electrical signal by the tension sensor. The signal is fed back to the frequency converter of the winding motor to dynamically adjust the winding speed, so that the fabric tension is kept within the preset range. Through adaptive tension adjustment, on the one hand, the fabric tension is not too high, which will cause fabric deformation, and on the other hand, the fabric tension is not too low, which will affect the printing effect. On the other hand, the fabric in the printing area is kept in a state of perpendicular contact with the digital printing head to avoid the distortion of the printed pattern, thereby improving the printing quality.

[0024] 3. The heated air is blown out through two sets of drying hoods to both sides of the fabric by the fan and heater. At the same time, the two sets of drying hoods are moved horizontally in sync by two sets of internal thread blocks, so that the front and back sides of the printed fabric are dried at the same time. This allows the printed fabric to be dried quickly, effectively avoiding the adhesion of printing ink during the winding process and improving the printing effect.

[0025] 4. In the initial state, the strip electromagnet is energized to attract the metal plate and clamp the fabric. After completing one row of printing, the first contact block triggers the first touch switch, the electromagnet is de-energized and released, and the second servo motor drives the threaded rod to move the fabric upward. After the second touch switch is triggered by the second contact block, the strip electromagnet is re-attracted, and the second servo motor reverses and resets. Through the linkage between the moving loading mechanism and the traction component, the fabric is automatically pulled at equal intervals. The installation height of the second touch switch is adjusted by the electric push rod to directly control the length of each pull, thereby adjusting the density of the printed pattern. This allows the printing device to meet the printing operations of different pattern specifications, effectively improving the versatility of the printing device. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the main structure according to an embodiment of the present invention is shown;

[0028] Figure 2 A schematic diagram of the tension detection mechanism according to an embodiment of the present invention is shown;

[0029] Figure 3 A schematic diagram of the main body structure from another angle according to an embodiment of the present invention is shown;

[0030] Figure 4A schematic diagram of the structure of the main body without fabric is shown according to an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the upper part of the internal screw block according to an embodiment of the present invention is shown;

[0032] Figure 6 A schematic diagram of the processing component and traction component according to an embodiment of the present invention is shown;

[0033] Figure 7 An embodiment of the present invention is shown. Figure 6 Enlarged view of point A in the middle;

[0034] Figure 8 A schematic diagram of the positioning mechanism portion according to an embodiment of the present invention is shown.

[0035] In the diagram: 100, base; 110, chute; 200, take-up motor; 300, take-up roller; 400, tension detection mechanism; 410, slider; 420, tension roller; 430, sliding shaft; 440, tension spring; 450, tension sensor; 500, vertical plate; 600, directional roller; 700, processing component; 710, drying mechanism; 711, fan; 712, heater; 713, air guide hose; 714, drying hood; 720, moving loading mechanism; 721, synchronous pulley; 722, synchronous belt; 723, lead screw; 724, first servo motor; 725, internal thread block; 726, limit frame; 727, limit shaft; 728, fixing rod; 729, mounting ring; 730, printing mechanism; 731, pigment box; 732, ink cartridge; 73 3. Ink guide tube; 734. Printing box; 735. Digital printing head; 736. Limiting ring; 737. First abutting block; 800. Traction assembly; 810. Fixing plate; 820. L-shaped bracket; 830. Second servo motor; 840. Threaded rod; 850. Moving block; 860. First fixed shaft; 870. First touch switch; 880. Traction length control mechanism; 881. Electric push rod; 882. Second touch switch; 883. First slip ring; 884. Second slip ring; 885. Linkage block; 886. Second abutting block; 890. Positioning mechanism; 891. Positioning block; 892. Adjustment groove; 893. Second fixed shaft; 894. Strip plate; 895. Abutting spring; 896. Strip metal plate; 897. Strip electromagnet; 900. Unwinding roller. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0037] This invention provides a textile printing apparatus, including a base 100; exemplarily, such as... Figure 1 and Figure 2 As shown.

[0038] A winding motor 200 is installed on one side wall of the base 100. The output end of the winding motor 200 is connected to a winding roller 300. A tension detection mechanism 400 is provided on the inner wall of the base 100. The tension detection mechanism 400 is located on one side of the winding roller 300. Two sets of vertical plates 500 are symmetrically arranged at the top of the base 100. An directional roller 600 is installed on the two sets of vertical plates 500. An unwinding roller 900 is provided at the other end of the two sets of vertical plates 500.

[0039] Specifically, the roll of knitted textile fabric to be printed is placed on the unwinding roller 900. One end of the fabric roll is pulled through the upper surface of the directional roller 600 to the tension detection mechanism 400, and then passes through the bottom end of the tension detection mechanism 400 and winds onto the take-up roller 300. The tension detection mechanism 400 keeps the fabric roll taut and flat, while the fabric between the directional roller 600 and the tension detection mechanism 400 is perpendicular to the fabric. The take-up motor 200 drives the take-up roller 300 to rotate, thereby winding and conveying the knitted textile fabric roll.

[0040] The tension detection mechanism 400 includes two sets of sliders 410 and a tension roller 420. The tension roller 420 is rotatably connected between the two sets of sliders 410. The inner walls of both sides of the base 100 are provided with sliding grooves 110. The inner walls of the two sets of sliding grooves 110 are fixedly connected with sliding shafts 430. The two sets of sliders 410 are respectively sleeved on the corresponding set of sliding shafts 430. A tension spring 440 is provided between the two sets of sliders 410 and the top of the inner walls of the two sets of sliding grooves 110. The two sets of tension springs 440 are respectively sleeved on the corresponding set of sliding shafts 430. A tension sensor 450 is installed at one end of the two sets of tension springs 440.

[0041] Specifically, in the initial state, due to the gravity of the tension roller 420 itself, the two sets of tension springs 440 are in a compressed state. When the fabric passes through the bottom end of the tension roller 420 and is wound onto the take-up roller 300 for winding, the tensioned fabric drives the tension roller 420 to move upward, causing the tension springs 440 to generate a tensile force. The tensile force of the springs is detected by the tension sensor 450, thereby detecting the tension of the fabric. The deformation of the tension spring 440 is converted into an electrical signal by the tension sensor 450, and the signal is fed back to the frequency converter of the take-up motor 200 to dynamically adjust the winding speed, so that the tension of the fabric is kept within the preset value range, avoiding excessive tension that would cause fabric deformation, and also avoiding insufficient tension that would affect the printing effect.

[0042] For example, such as Figures 3-5 As shown.

[0043] A processing component 700 and a traction component 800 are also provided between the two sets of upright plates 500. The processing component 700 includes a drying mechanism 710, two sets of mobile loading mechanisms 720 and a printing mechanism 730.

[0044] The air drying mechanism 710 includes a fan 711, which is installed on the side wall of a set of vertical plates 500. The air inlet end of the fan 711 is provided with a filter screen, and the air outlet end of the fan 711 is connected to a heater 712. Both air outlet ends of the heater 712 are connected to air guide hoses 713.

[0045] The printing mechanism 730 includes a pigment box 731, which contains several sets of ink cartridges 732. Each set of ink cartridges 732 stores pigments of different colors. Each set of ink cartridges 732 is connected to two sets of ink guide tubes 733, which extend to a corresponding set of mobile loading mechanisms 720.

[0046] The two sets of mobile loading mechanisms 720 are arranged in a mirror image with the fabric between the directional roller 600 and the tension roller 420 as the center. Each mobile loading mechanism 720 includes two sets of synchronous pulleys 721, and each set of synchronous pulleys 721 is fitted with a synchronous belt 722. Two sets of lead screws 723 are rotatably connected between the two sets of vertical plates 500. One end of each set of lead screws 723 is fixedly connected to the center of the corresponding set of synchronous pulleys 721. Each set of lead screws 723 is threaded with an internal thread block 725. A first servo motor 724 is installed on one set of vertical plates 500. The output end of the first servo motor 724 is drivenly connected to one end of one set of lead screws 723. Two sets of limit frames 726 are fixedly connected to each set of vertical plates 500. A limit shaft 727 is fixedly connected between the two sets of limit frames 726.

[0047] A printing box 734 is fixedly connected to the internal threaded block 725. The printing box 734 is connected to several sets of ink guide tubes 733. A digital printing head 735 is installed on one side wall of the printing box 734 near the fabric. Two sets of limiting rings 736 are installed on one side wall of the printing box 734. Both sets of limiting rings 736 are movably fitted with limiting shafts 727. First abutment blocks 737 are provided on both side walls of the printing box 734. A fixing rod 728 is installed on one side wall of the internal threaded block 725. An installation ring 729 is provided at the bottom end of the fixing rod 728. A drying hood 714 is installed on the installation ring 729. The air outlet of the drying hood 714 faces the surface of the fabric. The air inlet of the drying hood 714 is connected to one end of the air guide hose 713.

[0048] Specifically, the first servo motor 724 drives a set of lead screws 723 to rotate, and the two sets of synchronous pulleys 721 drive the two sets of lead screws 723 to rotate synchronously, so that the two sets of internal thread blocks 725 drive the two sets of digital printing heads 735 to move horizontally synchronously. Through several sets of ink guide tubes 733, different colored pigments are sprayed onto the front and back of the fabric through the two sets of digital printing heads 735, and the front and back of the fabric are printed simultaneously. After the printing operation is completed, the fabric section is conveyed downward to one side of the drying hood 714. The fan 711 and the heater 712 blow the heated air through the two sets of drying hoods 714 to the front and back of the fabric. At the same time, the two sets of internal thread blocks 725 drive the two sets of drying hoods 714 to move horizontally synchronously, and the front and back of the printed fabric are dried simultaneously.

[0049] For example, such as Figures 6-8 As shown.

[0050] The traction assembly 800 includes two sets of fixing plates 810, which are respectively mounted on a corresponding set of upright plates 500. A first touch switch 870 is installed on one side wall opposite to the two sets of fixing plates 810, and the two sets of first touch switches 870 respectively move in contact with a corresponding set of first abutting blocks 737.

[0051] Both sets of fixed plates 810 are equipped with L-shaped brackets 820, and both sets of L-shaped brackets 820 are equipped with second servo motors 830. The second servo motors 830 are electrically connected to the first touch switch 870. The output end of the second servo motors 830 is driven by a threaded rod 840. A moving block 850 is threadedly connected to the threaded rod 840. A first fixed shaft 860 is provided between the bottom end of the L-shaped bracket 820 and the fixed plate 810. The moving block 850 is movably fitted with the first fixed shaft 860. A traction length control mechanism 880 is provided on one set of L-shaped brackets 820, and a positioning mechanism 890 is provided between the two sets of moving blocks 850.

[0052] The traction length control mechanism 880 includes an electric push rod 881, which is installed at the bottom of an L-shaped bracket 820. The output end of the electric push rod 881 is connected to a second touch switch 882. The second touch switch 882 is electrically connected to a second servo motor 830. A first slip ring 883 is fixedly connected to one side of the second touch switch 882. The first slip ring 883 is sleeved on a first fixed shaft 860. A second slip ring 884 is sleeved on the first fixed shaft 860. One side of the second slip ring 884 is fixedly connected to the side wall of a moving block 850. A linkage block 885 is fixedly connected to the other side of the second slip ring 884. A second abutment block 886 is provided at the top of the linkage block 885. The second abutment block 886 moves in contact with the second touch switch 882.

[0053] The positioning mechanism 890 includes two sets of positioning blocks 891. The two sets of positioning blocks 891 are fixedly connected to the side wall opposite to a corresponding set of moving blocks 850. An adjustment groove 892 is provided in the positioning block 891. A second fixed shaft 893 is provided in the adjustment groove 892. Two sets of strip plates 894 are slidably connected to the second fixed shaft 893. A resisting spring 895 is provided between the two sets of strip plates 894. The resisting spring 895 is sleeved on the second fixed shaft 893. A strip metal plate 896 is fixedly connected to one set of strip plates 894. A strip electromagnet 897 is installed on the other set of strip plates 894. The strip electromagnet 897 is electrically connected to the first touch switch 870 and the second touch switch 882. When the strip electromagnet 897 is energized, it attracts the strip metal plate 896. The strip metal plate 896 and the strip electromagnet 897 are respectively located on both sides of the fabric.

[0054] Specifically, the first touch switch 870 can be turned on by contacting the first contact block 737, and the first touch switch 870 can control the strip electromagnet 897 to be de-energized and simultaneously control the second servo motor 830 to rotate. The second touch switch 882 can be turned on by contacting the second contact block 886, and the second touch switch 882 can control the strip electromagnet 897 to be energized and simultaneously control the second servo motor 830 to rotate in the opposite direction.

[0055] Furthermore, in the initial state, the strip electromagnet 897 is energized, causing it to attract the strip metal plate 896, bringing the two together. The fabric is clamped between the strip electromagnet 897 and the strip metal plate 896 and is under tension. At this time, the internal thread block 725 drives the digital printing head 735 to move horizontally for printing. When the internal thread block 725 drives the first abutment block 737 on one side to contact the first touch switch 870, one line of printing is completed. The first touch switch 870 is then turned on, de-energizing the strip electromagnet 897. At this time, the abutment force of the abutment spring 895 separates the strip electromagnet 897 from the strip metal plate 896, and the fabric no longer adheres to the metal plate. The fabric is clamped, and at the same time, the second servo motor 830 drives the threaded rod 840 to rotate, causing the two sets of moving blocks 850 to drive the positioning mechanism 890 to move upward until the second abutment block 886 contacts and activates the second touch switch 882, causing the strip electromagnet 897 and the strip metal plate 896 to clamp the upper end of the unprinted fabric. At the same time, the second servo motor 830 drives the threaded rod 840 to rotate in the opposite direction, causing the positioning mechanism 890 to move the fabric downward to the initial state. At this time, the take-up roller 300 takes up the printed fabric, making the fabric synchronously tensioned. At this time, the unprinted fabric section moves to one side of the digital printing head 735, and the digital printing head 735 continues the printing operation.

[0056] Furthermore, by driving the second touch switch 882 up and down through the electric push rod 881, the distance between the second touch switch 882 and the second contact block 886 is adjusted, thereby adjusting the length of the fabric segment moved each time, that is, adjusting the printing interval distance of each row, and thus adjusting the printing density.

[0057] The working principle of the textile printing device proposed in this invention is as follows:

[0058] The textile fabric roll to be printed is placed on the unwinding roller 900. One end of the fabric roll is pulled through the upper surface of the directional roller 600 to the tension detection mechanism 400, and then passed through the bottom end of the tension detection mechanism 400 and wound onto the take-up roller 300. The tension detection mechanism 400 keeps the fabric roll taut and flat, while the fabric between the directional roller 600 and the tension detection mechanism 400 is perpendicular. The take-up motor 200 drives the take-up roller 300 to rotate, and the textile fabric roll is taken up and transported.

[0059] In the initial state, due to the gravity of the tension roller 420 itself, the two sets of tension springs 440 are in a compressed state. When the fabric passes through the bottom end of the tension roller 420 and is wound onto the take-up roller 300 for winding, the tensioned fabric drives the tension roller 420 to move upward, causing the tension springs 440 to generate a tensile force. The tensile force of the springs is detected by the tension sensor 450, thereby realizing the detection of the fabric tension. The deformation of the tension spring 440 is converted into an electrical signal by the tension sensor 450, and the signal is fed back to the frequency converter of the take-up motor 200 to dynamically adjust the take-up speed, so that the fabric tension is kept within the preset value range, avoiding the fabric deformation caused by excessively high fabric tension, and also avoiding the printing effect caused by excessively low fabric tension.

[0060] The first servo motor 724 drives a set of lead screws 723 to rotate. Two sets of synchronous pulleys 721 drive the two sets of lead screws 723 to rotate synchronously, causing the two sets of internal thread blocks 725 to drive the two sets of digital printing heads 735 to move horizontally synchronously. Through several sets of ink guide tubes 733, different colored pigments are sprayed onto the front and back of the fabric through the two sets of digital printing heads 735, and the front and back of the fabric are printed simultaneously. After the printing operation is completed, the fabric section is conveyed downward to one side of the drying hood 714. The fan 711 and heater 712 blow the heated air through the two sets of drying hoods 714 to the front and back of the fabric. At the same time, the two sets of internal thread blocks 725 drive the two sets of drying hoods 714 to move horizontally synchronously, and the front and back of the printed fabric are dried simultaneously.

[0061] Initially, the strip electromagnet 897 is energized, attracting the strip metal plate 896 and causing them to adhere together. The fabric is clamped between the strip electromagnet 897 and the strip metal plate 896 and is under tension. At this time, the internal thread block 725 drives the digital printing head 735 to move horizontally for printing. When the internal thread block 725 drives the first abutment block 737 on one side to contact the first touch switch 870, one line of printing is completed. The first touch switch 870 then turns on, de-energizing the strip electromagnet 897. At this time, the abutment force of the abutment spring 895 separates the strip electromagnet 897 from the strip metal plate 896, stopping the fabric from being pressed against the metal plate. The fabric is clamped, and at the same time, the second servo motor 830 drives the threaded rod 840 to rotate, causing the two sets of moving blocks 850 to drive the positioning mechanism 890 to move upward until the second abutment block 886 contacts and activates the second touch switch 882, so that the strip electromagnet 897 and the strip metal plate 896 clamp the upper end of the unprinted fabric. At the same time, the second servo motor 830 drives the threaded rod 840 to rotate in the opposite direction, causing the positioning mechanism 890 to move the fabric downward to the initial state. At this time, the take-up roller 300 takes up the printed fabric, so that the fabric is tensioned synchronously. At this time, the unprinted fabric section moves to one side of the digital printing head 735, and the printing operation continues through the digital printing head 735.

[0062] The electric push rod 881 drives the second touch switch 882 to move up and down, thereby adjusting the distance between the second touch switch 882 and the second contact block 886, thus adjusting the length of the fabric segment moved each time, that is, adjusting the printing interval distance of each row, and thus adjusting the printing density.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A textile printing device, comprising a base, characterized in that: A winding motor is installed on one side wall of the base, and the output end of the winding motor is connected to a winding roller for winding the fabric. The inner wall of the base is provided with a tension detection mechanism for detecting the tension of the fabric. The base has two sets of vertical plates symmetrically arranged at its top, and directional rollers are installed on the two sets of vertical plates. Unwinding rollers are arranged at the other end of the two sets of vertical plates. A processing assembly and a traction assembly are also provided between the two sets of uprights. The processing assembly includes a drying mechanism for quickly drying the printed fabric, two sets of moving loading mechanisms, and a printing mechanism. The two sets of mobile loading mechanisms are arranged in a mirror image with the fabric between the directional roller and the tension detection mechanism as the center; The mobile loading mechanism includes two sets of synchronous pulleys, each set of synchronous pulleys is fixedly connected to a lead screw, and each set of lead screws is threaded with an internal thread block. A printing box is fixedly connected to the internal threaded block, and a digital printing head is installed on the side wall of the printing box near the fabric.

2. The textile printing apparatus according to claim 1, characterized in that: The tension detection mechanism is located on one side of the take-up roller. The tension detection mechanism includes two sets of sliders and a tension roller. The tension roller is rotatably connected between the two sets of sliders. The inner walls of both sides of the base are provided with sliding grooves. The inner walls of the two sets of sliding grooves are fixedly connected with sliding shafts. The two sets of sliders are respectively sleeved on the corresponding set of sliding shafts. Tension springs are provided between the top of the inner walls of the two sets of sliders and the two sets of sliding grooves. The two sets of tension springs are respectively sleeved on the corresponding set of sliding shafts. A tension sensor is installed at one end of the two sets of tension springs.

3. The textile printing apparatus according to claim 1, characterized in that: The air-drying mechanism includes a fan, which is installed on the side wall of a set of upright plates. The air inlet of the fan is equipped with a filter screen, and the air outlet of the fan is connected to a heater. Both air outlets of the heater are connected to air guide hoses. A fixing rod is installed on one side wall of the internal threaded block. The bottom end of the fixing rod is equipped with a mounting ring. An air-drying hood is installed on the mounting ring. The air outlet of the air-drying hood faces the surface of the fabric, and the air inlet of the air-drying hood is connected to one end of the air guide hose.

4. The textile printing apparatus according to claim 1, characterized in that: The printing mechanism includes a pigment box containing several sets of ink cartridges. Each set of ink cartridges stores pigments of different colors. Each set of ink cartridges is connected to two sets of ink guide tubes, which extend to a corresponding set of printing boxes. Two sets of limiting rings are installed on one side wall of the printing box, and first abutment blocks are provided on both side walls of the printing box.

5. The textile printing apparatus according to claim 1, characterized in that... Both sets of synchronous pulleys are fitted with synchronous belts. A first servo motor is installed on one set of vertical plates. The output end of the first servo motor is connected to one end of a set of lead screws. Two sets of limit frames are fixedly connected to both sets of vertical plates. Limit shafts are fixedly connected between the two sets of limit frames.

6. The textile printing apparatus according to claim 1, characterized in that: The traction assembly includes two sets of fixing plates, which are respectively set on a corresponding set of upright plates. A first touch switch is installed on one side wall opposite to the other two sets of fixing plates.

7. The textile printing apparatus according to claim 6, characterized in that: Both sets of fixed plates are equipped with L-shaped brackets, and both sets of L-shaped brackets are equipped with second servo motors. The second servo motors are electrically connected to the first touch switch. The output end of the second servo motor is driven by a threaded rod, and a moving block is threadedly connected to the threaded rod. A first fixed shaft is provided between the bottom end of the L-shaped bracket and the fixed plate. The moving block is movably fitted with the first fixed shaft. A traction length control mechanism is provided on one set of L-shaped brackets, and a positioning mechanism is provided between the two sets of moving blocks.

8. The textile printing apparatus according to claim 7, characterized in that: The traction length control mechanism includes an electric push rod, which is installed at the bottom of the L-shaped bracket. The output end of the electric push rod is connected to a second touch switch, which is electrically connected to a second servo motor. A first slip ring is fixedly connected to one side of the second touch switch, and the first slip ring is sleeved on a first fixed shaft.

9. The textile printing apparatus according to claim 8, characterized in that: A second slip ring is sleeved on the first fixed shaft. One side of the second slip ring is fixedly connected to the side wall of the moving block, and a linkage block is fixedly connected to the other side of the second slip ring. A second abutment block is provided at the top of the linkage block, and the second abutment block moves in contact with the second touch switch.

10. The textile printing apparatus according to claim 7, characterized in that: The positioning mechanism includes two sets of positioning blocks, each set of positioning blocks being fixedly connected to a side wall opposite to a corresponding set of moving blocks. Each positioning block has an adjustment groove, and a second fixed shaft is installed within the adjustment groove. Two sets of strip plates are slidably connected to the second fixed shaft, and a contact spring is installed between the two sets of strip plates. The contact spring is sleeved on the second fixed shaft. A strip-shaped metal plate is fixedly connected to one set of strip plates, and a strip-shaped electromagnet is installed on the other set of strip plates. When energized, the strip-shaped electromagnet attracts the strip-shaped metal plate. The strip-shaped metal plate and the strip-shaped electromagnet are respectively located on both sides of the fabric.

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