Superfine fiber fabric heat transfer printing device and transfer printing cutting method thereof

Abstract

The invention discloses a superfine fiber fabric heat transfer printing device and a transfer printing cutting method.The superfine fiber fabric heat transfer printing device comprises a fixed bottom plate, a main supporting frame is fixed to the position, from the middle to the left, of the top face of the fixed bottom plate, and a cloth printing winding drum wound with superfine fiber fabric cloth is installed on a cloth rotating shaft on the upper portion of the left portion of the main supporting frame; a transfer paper reel is installed on a paper rotating shaft on the lower portion of the left portion of the main supporting frame, and two connecting beams which are arranged left and right and extend front and back are fixed to the middle of a front side plate and the middle of a rear side plate of the main supporting frame. The printing device can be used for carrying out interval connection transfer printing on large-width superfine fiber weaving cloth, printing heads of the two printing devices are used for respectively printing the front half part and the rear half part of the corresponding position of the conveyed cloth and combining the front half part and the rear half part into an integral pattern, so that normal conveying operation of transfer printing paper and the cloth can be ensured, heat transfer printing is realized, and the printing efficiency is improved. And meanwhile, cutting can be carried out according to needs, and the machining needs are met.

Description

Technical Field

[0001] This invention relates to the field of textile printing equipment technology, and more specifically to a heat transfer printing device for microfiber fabrics and its transfer printing and cutting method. Background Technology

[0002] Microfibers are mainly divided into microfiber natural fibers and microfiber synthetic fibers. Microfiber natural fibers mainly include animal fibers (spider silk, silkworm silk, leather, animal hair, etc.) and plant fibers; microfiber synthetic fibers mainly include polyester, polyamide, polyacrylonitrile, polypropylene, polytetrafluoroethylene and glass fiber, etc. The two microfibers with the largest output in the industry are polyester and polyamide.

[0003] Fabrics woven from microfibers are suitable for heat transfer printing. In existing heat transfer equipment, the pattern to be printed is usually printed onto transfer paper first, and then transferred onto the fabric. If the fabric is very wide, the lateral movement speed of the printing device when printing onto the transfer paper needs to be increased, otherwise the transfer paper's conveying speed will be reduced, which will reduce the efficiency and speed of subsequent fabric transfer. This has a significant impact on wide fabrics.

[0004] Meanwhile, existing heat transfer fabrics are suitable for continuous transfer printing, but cannot achieve intermittent continuous transfer printing, that is, pattern printing is performed intermittently on the fabric, and existing equipment cannot meet the needs. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a heat transfer printing device for microfiber fabrics and a transfer printing and cutting method thereof. It can perform intermittent transfer printing on microfiber fabrics of large widths, and can also cut them as needed to meet processing requirements.

[0006] The solution of the present invention to the aforementioned technical problem is:

[0007] A microfiber fabric heat transfer printing device includes a fixed base plate. A main support frame is fixed from the middle to the left of the top surface of the fixed base plate. A fabric printing roll wound with microfiber fabric is installed on the upper fabric shaft of the left side of the main support frame. A transfer paper roll is installed on the lower paper shaft of the left side of the main support frame. Two connecting beams extending forward and backward are fixed in the middle of the front and rear side plates of the main support frame. A printing device is installed below each connecting beam. The print head of the printing device prints a pattern on the top surface of the transfer paper conveyed below. A heat transfer device is installed on the main support frame on the right side of the printing device. The heat transfer device includes an upper pressing mechanism and a lower heating device, which transfers the pattern of the corresponding transfer paper to the bottom surface of the fabric output from the fabric printing roll.

[0008] A transfer paper waste paper winding mechanism is installed on the lower right side of the main support frame, and a cutting device for cutting the fabric is fixed in the middle of the right side wall of the main support frame.

[0009] The main support frame includes front and rear side plates. Multiple lower support legs are fixed to the bottom surface of each side plate. The bottom end of each lower support leg is fixed to the top surface of the fixed base plate. Multiple front and rear extending support rods are fixed between the two side plates.

[0010] The printing device includes two connecting beams extending forward and backward, fixed between two side plates of the main support frame. Below the connecting beams are adjusting beams extending forward and backward. Vertical screws are fixed to the front and rear of the top surface of the adjusting beams. The vertical screws are inserted into corresponding vertical through holes in the connecting beams. The top of the vertical screw extends out of the top surface of the connecting beam and is screwed with an adjusting nut. The bottom surface of the adjusting nut presses against the top surface of the corresponding connecting beam. A buffer spring is inserted into the vertical screw. The bottom end of the buffer spring rests on the top surface of the adjusting beam, and the top end rests on the bottom surface of the connecting beam. A linear module is fixed to the bottom surface of the adjusting beam, and the printhead body is fixed to the bottom surface of the bottom slider of the linear module.

[0011] The printhead body has a support guide roller extending forward and backward at its lower part. The front and rear ends of the support guide roller are movably connected to the front and rear side plates of the main support frame through bearings. The transfer paper of the transfer paper roll is fed to the right along the top surface of the support guide roller.

[0012] In the printing device, the left adjustment beam is located below the left connecting beam at the rear to the front of the middle, and the right adjustment beam is located below the right connecting beam at the front to the rear of the middle. The print head of the left printing device prints the middle to the rear of the conveyed transfer paper, and the print head of the right printing device prints the front to the middle of the conveyed transfer paper.

[0013] The left side of the support guide roller is equipped with a feed guide roller, and the right side of the support guide roller is equipped with a discharge guide roller. The transfer paper is conveyed from left to right along the feed guide roller, support guide roller and discharge guide roller in sequence.

[0014] The lower heating device includes a horizontal connecting plate fixed below the transfer paper between the discharge guide roller and the roll of the transfer paper waste paper winding mechanism. The front and rear ends of the horizontal connecting plate are fixed to the front and rear side plates of the main support frame. Multiple lifting cylinders are fixed at the front and rear of the bottom surface of the horizontal connecting plate. The top of the push rod of all the lifting cylinders extends out of the top surface of the horizontal connecting plate and is fixed to the same lifting plate. A heating plate is fixed on the top surface of the lifting plate. Multiple heating rods extending forward and backward are fixed in the heating plate. An anti-slip heat-conducting plate is fixed on the top surface of the heating plate, and the transfer paper above it faces the top surface of the anti-slip heat-conducting plate.

[0015] The bottom surface of the lifting plate is fixed with multiple downward-extending limiting screws. The limiting screws are inserted into the corresponding vertical through holes of the horizontal connecting plate. The bottom end of the limiting screw extends out of the bottom end of the corresponding vertical through hole and is screwed with a locking nut. The top surface of the locking nut presses against the bottom surface of the horizontal connecting plate. A buffer spring is inserted into the limiting screw. The bottom end of the buffer spring applies force to the top surface of the horizontal connecting plate, and the top end applies force to the bottom surface of the lifting plate.

[0016] The upper pressing mechanism is located directly above the anti-slip heat-conducting plate. The upper pressing mechanism includes an upper connecting plate extending forward and backward. The upper connecting plate is fixed on the inner sidewall of the front and rear side plates of the main support frame. Upper pressing cylinders are fixed at the front and rear of the top surface of the upper connecting plate. The bottom end of the push rod of all the upper pressing cylinders extends out of the bottom surface of the upper connecting plate and is fixed with the same upper transfer pressing block. The upper transfer pressing block is located directly above the corresponding fabric. Multiple vertical guide rods are fixed on the top surface of the upper transfer pressing block. The vertical guide rods are inserted into the guide through holes formed on the upper connecting plate.

[0017] The upper left and right sides of the two adsorption shells are provided with upper guide rollers, and the front and rear ends of the upper guide rollers are movably connected to the front and rear side plates of the main support frame through bearings.

[0018] The upper part of the main support frame between the right and left upper guide rollers of the fabric printing roll is provided with a first guide roller and a tension adjusting roller. The tension adjusting roller is located to the right of the first guide roller. The front and rear ends of the first guide roller are movably connected to the front and rear side plates of the main support frame through bearings. The front and rear ends of the tension adjusting roller are movably connected to lifting adjusting blocks through bearings. The lifting adjusting blocks are inserted into the vertical adjusting slots formed on the two side plates. The top of the vertical adjusting slots extends out of the top surface of the side plates. Vertical guide strips are fixed on the left and right sides of the vertical adjusting slots. The vertical guide strips are inserted into the vertical guide slots formed on the left and right side walls of the lifting adjusting blocks. A connecting plate is fixed on the top surface of the side plate at the top of the vertical adjusting slot. A lifting cylinder is fixed on the top surface of the connecting plate. The bottom end of the push rod of the lifting cylinder extends out of the bottom surface of the corresponding connecting plate and is fixed on the top surface of the corresponding lifting adjusting block.

[0019] The outstanding effects of this invention are:

[0020] Compared with existing technologies, it can perform intermittent transfer printing on wide microfiber fabrics. It uses two printing heads to print the front and back halves of the conveyed fabric separately and combine them into a whole pattern. This ensures the normal conveying and operation of the transfer paper and fabric, achieves heat transfer, and guarantees processing efficiency. At the same time, it can be cut as needed to meet processing requirements. Attached Figure Description

[0021] Figure 1This is a partial structural schematic diagram of the present invention;

[0022] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0023] Figure 3 yes Figure 1 A magnified view of another part;

[0024] Figure 4 yes Figure 1 There are also some enlarged partial images;

[0025] Figure 5 This is a partial enlarged view of the lower right side of the side plate of the main support frame without the transfer paper waste paper winding mechanism installed;

[0026] Figure 6 This is a partial structural diagram of the cutting wheel;

[0027] Figure 7 This is a partial top view of the horizontal guide support plate;

[0028] Figure 8 This is a partial bottom view of the two printing units;

[0029] Figure 9 This is a schematic diagram of a partial structure at the drive roller;

[0030] Figure 10 This is a partial structural diagram of the winding geared motor. Detailed Implementation

[0031] For example, see below. Figures 1 to 10As shown, a microfiber fabric heat transfer printing device includes a fixed base plate 10. A main support frame 20 is fixed from the middle to the left of the top surface of the fixed base plate 10. A fabric printing roll 100 wound with microfiber fabric is installed on the upper fabric shaft on the left side of the main support frame 20. A transfer paper roll 200 is installed on the lower paper shaft on the left side of the main support frame 20. Both the fabric shaft and the paper shaft are detachable, allowing for the loading and unloading of the corresponding fabric printing roll 100 and transfer paper roll 200. The device is designed such that corresponding positions on the two side plates of the main support frame 20 are movably connected to connecting shafts via bearings. The left side walls of the corresponding connecting shafts at the front and rear ends are formed with extensions extending to the right towards the connecting shafts. The central slot has insertion parts formed at both ends of the fabric shaft and paper shaft. The insertion parts are inserted into the corresponding slots. At the same time, a screw-in through hole is formed on one side wall of the slot, and corresponding insertion holes are formed at the corresponding positions of the insertion parts of the fabric shaft and paper shaft. The screw part of the fixing bolt can be screwed into the corresponding screw-in through hole and inserted into the corresponding insertion hole to achieve connection. Meanwhile, a conveyor motor is fixed on the outer side wall of the side plate of the corresponding connecting shaft. The conveyor shaft of the conveyor motor is connected to the corresponding connecting shaft and can drive the connecting shaft to rotate, thereby realizing the rotation of the fabric shaft and paper shaft, and realizing the feeding of the fabric printing roll 100 and transfer paper roll 200 installed on them. Other existing disassembly and assembly structures can also be used, which will not be described in detail here.

[0032] Two connecting beams 21, arranged horizontally and extending horizontally, are fixed in the middle of the front and rear side plates of the main support frame 20. A printing device 30 is installed below each connecting beam 21. The print head of the printing device 30 prints a pattern on the top surface of the transfer paper conveyed below. A heat transfer device is installed on the main support frame 20 on the right side of the printing device. The heat transfer device includes an upper pressing mechanism 40 and a lower heating device 50, which transfers the pattern of the corresponding transfer paper to the bottom surface of the fabric output from the fabric printing roll 100.

[0033] A transfer paper waste paper winding mechanism 60 is installed on the lower right side of the main support frame 20, and a cutting device 70 for cutting the fabric is fixed in the middle of the right side wall of the main support frame 20.

[0034] Furthermore, the main support frame 20 includes front and rear side plates, and multiple lower support legs are fixed to the bottom surface of each side plate. The bottom end of the lower support legs is fixed to the top surface of the fixed base plate 10, and multiple front and rear extending support rods are fixed between the two side plates.

[0035] The printing device 30 includes two connecting beams 31 extending forward and backward, fixed between two side plates of the main support frame 20. An adjusting beam 32 extending forward and backward is provided below the connecting beams 31. Vertical screws 33 are fixed at the front and rear of the top surface of the adjusting beams 32. The vertical screws 33 are inserted into the vertical through holes at the corresponding positions of the connecting beams 31. The top end of the vertical screws 33 extends out of the top surface of the connecting beams 31 and is screwed with an adjusting nut 34. The bottom surface of the adjusting nut 34 presses against the top surface of the corresponding connecting beams 31. A buffer spring 35 is inserted on the vertical screws 33. The bottom end of the buffer spring 35 applies force to the top surface of the adjusting beams 32, and the top end of the buffer spring 35 applies force to the bottom surface of the connecting beams 31. A linear module 35 is fixed to the bottom surface of the adjusting beams 32. The bottom surface of the bottom slider of the linear module 35 is fixed with the print head body.

[0036] When using the above structure, the height of the two printhead bodies can be adjusted by rotating the adjusting nut 34 to meet processing needs.

[0037] Furthermore, a support guide roller 36 extending forward and backward is provided directly below the main body of the print head. The front and rear ends of the support guide roller 36 are movably connected to the front and rear side plates of the main support frame 20 via bearings. The transfer paper of the transfer paper roll 200 is conveyed to the right along the top surface of the support guide roller 36.

[0038] Furthermore, in the printing device 30, the left adjusting beam 32 is located below the left connecting beam 31 at the rear to the front of the middle, and the right adjusting beam 32 is located below the right connecting beam 31 at the front to the rear of the middle. The print head of the left printing device 30 prints the middle to the rear of the conveyed transfer paper, and the print head of the right printing device 30 prints the front to the middle of the conveyed transfer paper.

[0039] This structure allows the print head of the left-hand printing device 30 to print half of the transfer paper from the middle to the rear during printing. Then, as the transfer paper continues to be fed to the right, the print head of the right-hand printing device 30 can print the front half of the previously printed half of the pattern, thus achieving complete printing. This printing method means that when printing on wide transfer paper, the print head of the printing device 30 only needs to move half the distance, greatly reducing the travel distance and time. The print head and other structures are conventional and will not be described in detail here.

[0040] The left side of the support guide roller 36 is provided with a feed guide roller 37, and the right side of the support guide roller 36 is provided with a discharge guide roller 38. The transfer paper is conveyed from left to right along the feed guide roller 37, the support guide roller 36 and the discharge guide roller 38.

[0041] Furthermore, the lower heating device 50 includes a horizontal connecting plate 51 fixed below the transfer paper between the discharge guide roller 38 and the roll of the transfer paper waste paper winding mechanism 60. The front and rear ends of the horizontal connecting plate 51 are fixed to the front and rear side plates of the main support frame 20. Multiple lifting cylinders 52 are fixed at the front and rear of the bottom surface of the horizontal connecting plate 51. The top of the push rod of all the lifting cylinders 52 extends out of the top surface of the horizontal connecting plate 51 and is fixed to the same lifting plate 53. A heating plate 54 is fixed on the top surface of the lifting plate 53. Multiple heating rods extending forward and backward are fixed in the heating plate 54. An anti-slip heat-conducting plate 55 is fixed on the top surface of the heating plate 54, and the transfer paper above it faces the top surface of the anti-slip heat-conducting plate 55. A temperature sensing bulb or other temperature sensing device can be fixed on one side wall of the heating plate 54 to sense the temperature of the heating plate 54 and send the sensing signal to the control host. After receiving the temperature, the control host compares it with the temperature in its set program. When the temperature is too high, it controls the corresponding heating rod to stop heating, such as turning off 2 to 3 out of 6 heating rods, depending on the temperature detection settings, to achieve cooling. When the temperature is too low, such as when only 3 heating rods are on, the remaining heating rods can be turned on to achieve heating. This is a conventional structure and will not be described in detail here.

[0042] Furthermore, the bottom surface of the lifting plate 53 is fixed with a plurality of downwardly extending limiting screws 56. The limiting screws 56 are inserted into the corresponding vertical through holes of the horizontal connecting plate 51. The bottom end of the limiting screw 56 extends out of the bottom end of the corresponding vertical through hole and is screwed with a locking nut 57. The top surface of the locking nut 57 presses against the bottom surface of the horizontal connecting plate 51. A buffer spring 58 is inserted into the limiting screw 56. The bottom end of the buffer spring 58 applies force to the top surface of the horizontal connecting plate 51, and the top end applies force to the bottom surface of the lifting plate 53.

[0043] In the above structure, the locking nut 57 can be rotated as needed to adjust its position on the limiting screw 56, thereby adjusting the height of the lifting plate 53 during operation. That is, when the lifting plate 53 is lifted by the push rod of the lifting cylinder 52, the top surface of the locking nut 57 presses against the bottom surface of the corresponding horizontal connecting plate 51, which can limit the lifting plate 53 from continuing to rise and achieve positioning. This ensures that the top surface of the anti-slip heat-conducting plate 55 is in close contact with the bottom surface of the transfer paper when it is lifted, without generating an impact force on the transfer paper during lifting.

[0044] Furthermore, the upper pressing mechanism 40 is located directly above the anti-slip heat-conducting plate 55. The upper pressing mechanism 40 includes an upper connecting plate 41 extending forward and backward. The upper connecting plate 41 is fixed on the inner sidewalls of the front and rear side plates of the main support frame 20. Upper pressing cylinders 42 are fixed at the front and rear of the top surface of the upper connecting plate 41. The bottom end of the push rod of all the upper pressing cylinders 42 extends out of the bottom surface of the upper connecting plate 41 and is fixed with the same upper transfer pressing block 43. The upper transfer pressing block 43 is located directly above the corresponding fabric. Multiple vertical guide rods are fixed on the top surface of the upper transfer pressing block 43. The vertical guide rods are inserted into the guide through holes formed on the upper connecting plate 41.

[0045] Furthermore, the anti-slip heat-conducting plate 55 has front-to-back extending adsorption shells 11 on both sides. Below the adsorption shells 11 is a front-to-back extending lower fixing plate. The front and rear ends of the lower fixing plate are fixed to the inner walls of the two side plates of the main support frame 20. A front-to-back extending mounting groove is formed in the middle of the top plate of the adsorption shell 11. A perforated plate 12 is inserted into and mates with the mounting groove. The bottom edge of the perforated plate 12 is fixed to the bottom edge of the mounting groove. The mounting groove communicates with a through groove in the middle of its bottom surface. The through groove communicates with the internal cavity of the adsorption shell 11. The bottom plate of the adsorption shell 11 has a central... Multiple adsorption connectors 13 are connected and inserted into corresponding through holes in the lower fixed plate. Multiple lower buffer connecting screws 14 are fixed to the bottom edge of the adsorption housing 11 and inserted into corresponding through holes formed in the lower fixed plate. The bottom end of the lower buffer connecting screw 14 extends out of the bottom end of the corresponding through hole and is screwed with a second adjusting nut 15. The top surface of the second adjusting nut 15 presses against the bottom surface of the lower fixed plate. A lower buffer spring 16 is inserted into the lower buffer connecting screw 14. The top end of the lower buffer spring 16 applies force to the bottom surface of the adsorption housing 11 and the bottom end applies force to the top surface of the lower fixed plate. When using this structure, the height of the adsorption housing 11 can be adjusted by rotating the second adjusting nut 15 to ensure that the top surface of the adsorption housing 11 is in contact with or a certain distance (about 0.5mm) from the bottom surface of the transfer paper, thus meeting the processing requirements. The adsorption connector 13 can be connected to a solenoid valve at the air inlet of an external vacuum pump through a connecting pipe. When the vacuum pump is running, the solenoid valve opens to allow air intake, and when the solenoid valve closes, adsorption stops. This is a conventional structure and will not be described in detail here.

[0046] The upper left and right sides of the two adsorption housings 11 are provided with upper guide rollers, and the front and rear ends of the upper guide rollers 17 are movably connected to the front and rear side plates of the main support frame 20 through bearings.

[0047] Furthermore, the upper part of the main support frame 20 between the right and left upper guide rollers 17 of the fabric printing roll 100 is provided with a first guide roller 210 and a tension adjusting roller 22. The tension adjusting roller 22 is located to the right of the first guide roller 210. The front and rear ends of the first guide roller 210 are movably connected to the front and rear side plates of the main support frame 20 through bearings. The front and rear ends of the tension adjusting roller 22 are movably connected to lifting adjusting blocks 23 through bearings. The lifting adjusting blocks 23 are inserted into the vertically formed sections on the two side plates. In the adjusting channel 24, the top of the vertical adjusting channel 24 extends out of the top surface of the side plate. Vertical guide strips are fixed on the left and right sides of the vertical adjusting channel 24. The vertical guide strips are inserted into the vertical guide grooves formed on the left and right side walls of the lifting adjusting block 23. A connecting plate is fixed on the top surface of the side plate at the top of the vertical adjusting channel 24. The first lifting cylinder 25 is fixed on the top surface of the connecting plate. The bottom end of the push rod of the first lifting cylinder 25 extends out of the bottom surface of the corresponding connecting plate and is fixed on the top surface of the corresponding lifting adjusting block 23.

[0048] A buffer spring is fixed in the middle of the bottom surface of the vertical guide groove, and the top of the buffer spring is fixed on the bottom surface of the corresponding lifting adjustment block 23.

[0049] Furthermore, an extension plate 26 is fixed to the middle of the right side wall of each of the two side plates of the main support frame 20. A transmission roller 27 is provided between the two extension plates 26, with the two ends of the upper transmission roller 27 being movably connected to the two extension plates 26 via bearings. A reduction motor 28 is fixed to the outer side wall of one of the extension plates 26. The output shaft of the reduction motor 28 is a splined shaft, which is inserted into the splined hole at one end of the upper transmission roller 27, driving the transmission roller 27 to rotate.

[0050] An encoder is fixed to the outer wall of the extension plate 26 at the other end of the upper drive roller 27. The encoder shaft is fixed to one end of the corresponding drive roller 27. The encoder can sense the number of rotations of the drive roller 27, thereby obtaining the length of the fabric being conveyed.

[0051] The lower drive roller 27 has two ends movably connected to lower adjusting blocks 271 via bearings. A second geared motor is fixed to the outer wall of one of the lower adjusting blocks 271. The second geared motor drives the lower drive roller 27 to rotate. The geared motor and the second geared motor run at the same speed. The lower adjusting block 271 is inserted into an upwardly extending lower slot formed in the middle of the bottom surface of the two extension plates 26. Guide strips are formed on the left and right side walls of the lower slots. The guide strips are inserted into side guide grooves formed in the middle of the left and right side walls of the lower adjusting block 271. The bottom surface of the extension plate 26 is fixed with a bottom... The bottom plate covers the bottom end of the corresponding lower slot. A lower adjusting bolt 272 is screwed into the screw-in through hole in the middle of the bottom plate. The screw part of the lower adjusting bolt 272 is screwed into the screw-in through hole in the middle of the bottom plate. The rotating part of the lower adjusting bolt 272 is located below the bottom plate. The top end of the screw part of the lower adjusting bolt 272 is located in the lower slot and is movably connected to the bottom of the lower adjusting block 271. A buffer spring is inserted into the upper part of the screw part of the lower adjusting bolt 272. The top end of the buffer spring applies force to the bottom surface of the lower adjusting block 271, and the bottom end applies force to the top surface of the bottom plate.

[0052] In the above structure, the height of the lower adjusting block 271 can be changed by rotating the lower adjusting bolt 272, thereby changing the height of the lower transmission roller 27 and adjusting the distance between the two transmission rollers 27 to meet the normal conveying of the fabric between them.

[0053] Furthermore, the cutting device 70 includes a horizontal guide support plate 71 fixed between the right ends of the two extension plates 26. The front and rear walls of the left end of the horizontal guide support plate 71 are fixed to the inner side walls of the right ends of the two extension plates 26. The front and rear parts of the bottom surface of the horizontal guide support plate 71 are both fixed with lower support ribs. The left end of the lower support ribs is fixed to the right side walls of the two side plates of the main support frame 20.

[0054] The top surface of the horizontal guide support plate 71 is lower than the top surface of the transmission roller 27 below. Multiple support frames arranged horizontally are fixed to the front and rear side walls of the horizontal guide support plate 71. Vertical side guide rollers 72 are movably connected to each support frame via hinge shafts. The upper inner part of the vertical side guide rollers 72 is higher than the top surface of the horizontal guide support plate 71. The front and rear vertical side guide rollers 72 are close to the front and rear side walls of the horizontal guide support plate 71. Horizontal plates extending outwards are fixed to the front and rear side walls of the left side of the horizontal guide support plate 71. Outer edges are fixed to the top surfaces of the outer ends of the two horizontal plates. A vertical plate and a front-to-back extending fixing plate are fixed to the top surface of two outer vertical plates. A front-to-back extending first linear module 73 is fixed to the bottom surface of the fixing plate. A cutting connecting plate 74 is fixed to the first linear module 73. A cutting motor 75 is fixed to the lower part of the right side wall of the cutting connecting plate 74. The left end of the output shaft of the cutting motor 75 extends out of the left side wall of the cutting connecting plate 74 and is fixed with a cutting wheel 76. The lower part of the cutting wheel 76 is inserted into a cutting guide groove 711 formed on the top surface of the horizontal guide support plate 71, which extends out of the front and back walls of the horizontal guide support plate 71.

[0055] The bottom surface of the horizontal guide support plate 71 has a groove formed in the middle. A lower cover plate 77 is fixed to the bottom surface of the horizontal guide support plate 71, covering the groove. The top edge of the lower cover plate 77 and the bottom edge of the horizontal guide support plate 71 hold a sealing layer. Multiple air inlet connectors 771 are connected to the lower cover plate 77. The top surface of the horizontal guide support plate 71 at the left and right parts of the cutting guide groove 711 has a horizontal groove formed in the middle. The bottom surface of the horizontal groove has a downward extending through groove formed in the middle, and its bottom end communicates with the groove. Two perforated plates are inserted into the corresponding horizontal grooves and cover them. The edges of the perforated plates are fixed to the bottom surface of the corresponding horizontal groove edges.

[0056] The bottom surface of the cutting guide groove 711 is formed with multiple downward blowing through holes 712, which communicate with the lower groove.

[0057] In the above structure, the air inlet connector 771 can be connected to an electric valve on an external air tank via a connecting pipe. When the electric valve is opened, air is injected into the lower groove, allowing the gas to be blown out from the lower air outlet 712 and the top surface of the perforated plate. This provides bottom support for the fabric being conveyed above, creating a gap of about 5mm between the fabric and the top surface of the horizontal guide support plate 71. This reduces excessive contact between the fabric and the bottom surface of the horizontal guide support plate 71 as it is conveyed along the top surface of the horizontal guide support plate 71, ensuring that it can be conveyed normally to the right and preventing jamming.

[0058] Furthermore, side fixing plates are fixed on the front and rear side walls of the right end of the horizontal guide support plate 71. The upper pressing plate is fixed on the top surface of the two side fixing plates. An end pressing cylinder 78 is fixed in the middle of the top surface of the upper pressing plate. The bottom end of the push rod of the end pressing cylinder 78 extends out of the bottom surface of the upper pressing plate and is fixed with an auxiliary pressing plate 79. An upper anti-slip plate 791 is fixed on the bottom surface of the auxiliary pressing plate 79. The bottom surface of the upper anti-slip plate 791 faces the top surface of the horizontal guide support plate 71. Multiple vertical guide rods are fixed on the top surface of the auxiliary pressing plate 79. The vertical guide rods are inserted into the corresponding vertical guide through holes formed on the upper pressing plate.

[0059] The waste paper winding mechanism 60 includes a second linear module 61 extending left and right, fixed to the middle of the right top surface of the fixed base plate 10. A moving frame 62 is fixed on the top surface of the upper moving plate of the second linear module 61. An upper support frame 63 is fixed in the middle of the top surface of the top plate of the moving frame 62. Lifting cylinders 64 are fixed at the front and rear of the bottom surface of the top plate of the upper support frame 63. The top ends of the push rods of the two lifting cylinders 64 extend out of the top surface of the top plate of the upper support frame 63 and are fixed to the same horizontal support plate 65. Support plates are fixed on the top surfaces of the front and rear of the horizontal support plate 65. The two ends of the waste paper mounting roller 66 are detachably mounted on the two support plates. A winding reduction motor 67 is fixed on the outer wall of one of the support plates. The winding reduction motor 67 drives the waste paper mounting roller 66 to rotate. The two support plates are inserted into the upwardly extending slots formed on the right bottom surface of the front and rear side plates of the main support frame 20.

[0060] The bottom surface of the lower support plate at the front and rear of the movable frame 62 is fixed with a lower slider. The lower slider is inserted into and cooperates with the guide rails fixed at the front and rear of the top surface of the fixed base plate 10.

[0061] A connecting block is fixed on the top surface of the fixed base plate 10 at the left end of the corresponding guide rail, and a proximity switch 1 is fixed on the right side wall of the connecting block. The sensing end of the proximity switch 1 is close to the left side wall of the top plate of the movable frame 62.

[0062] The various linear modules in this embodiment can also be replaced with low-cost, existing, and well-known screw drive mechanisms, depending on the manufacturing cost of the equipment; these will not be described in detail here.

[0063] In this embodiment, all electrical components are electrically connected to the control host via electrical connection lines and are controlled by the control host. This is a conventional existing structure and will not be described in detail here.

[0064] The pad printing and cutting method in this embodiment is as follows:

[0065] (1) First, install the fabric printing roll 100 and the transfer paper roll 200 to the fabric rotating shaft and the paper rotating shaft;

[0066] (2) The fabric of the fabric printing roll 100 and the transfer paper of the transfer paper roll 200 are both pulled out to the right along the conveying path. The right end of the transfer paper of the transfer paper roll 200 is wound onto the waste paper cylinder installed on the waste paper mounting roller 66, while the fabric of the fabric printing roll 100 is output from the two drive rollers 27.

[0067] (3) All electrical components of the equipment are turned on and running. The fabric shaft and paper shaft rotate to feed the fabric printing roll 100 and the transfer paper roll 200. At the same time, the waste paper mounting roller 66 rotates to rotate and rewind the waste paper roll. The geared motor 28 and the second geared motor run to rotate the two transmission rollers 27, so that the fabric runs through the two transmission rollers 27 and is conveyed to the right.

[0068] (3) First, the fabric is conveyed to the right for 1 to 2 meters. During this conveying process, the air inlet connector 771 continuously inlets air, so that the gas is blown out from the bottom air outlet 712 and the top surface of the perforated plate, providing bottom support for the fabric conveyed above, so that there is a gap of about 5 mm between the fabric and the top surface of the horizontal guide support plate 71 to prevent jamming. After the encoder counts, it transmits the data to the control host. The control host receives the data, indicating that it has moved a specified distance. At this time, the right end of the fabric is directly below the upper anti-slip plate 791. The fabric output is the excess fabric that needs to be cut off. The push rod of the end pressing cylinder 78 pushes the upper anti-slip plate 791 to press the fabric. Then, the cutting motor 75 runs, causing the cutting wheel 76 to rotate. The first linear module 73 runs, causing the cutting wheel 76 to move from back to front to cut the fabric. The push rod of the end pressing cylinder 78 retracts, and the cut fabric is manually removed. At this time, the unwanted fabric is removed.

[0069] (4) When the entire equipment is in operation, the fabric is conveyed to the right. During the conveying process, the linear module 35 of the printing device 30 on the left first operates, causing the print head of the printing device 30 to move back and forth to print from the middle to the rear of the transfer paper. During this process, for every round trip of the print head of the printing device 30, the transfer paper moves exactly one printing distance. As the transfer paper moves to the right, when the position where half of the paper has been printed reaches the printing device 30 on the right, the corresponding linear module 35 operates, thereby causing the print head of the corresponding printing device 30 to print from the middle to the front, completing the printing of the pattern that needs to be printed on the entire transfer paper. In this embodiment, after printing a pattern, there will be a blank space. At this time, both printing devices 30 stop printing.

[0070] (5) The printed transfer paper moves to the right, and at the same time, the fabric is also conveyed to the right. When the transfer paper with the pattern moves to the top of the anti-slip heat-conducting plate 55 (its running distance is obtained by the number of rotations of the transmission roller 27 and by the encoder and then conveyed to the control host), at this time, the transfer paper under the print head of the two printing devices 30 is in the blank stage. This process is set by the control host. Then, the corresponding part of the transfer paper is adsorbed and fixed by the suction housing 11. At the same time, the fabric and the transfer paper stop running, so that the transfer paper above the anti-slip heat-conducting plate 55 will not move.

[0071] (6) Pushing the push rods of all lifting cylinders 52, the anti-slip heat-conducting plate 55 is lifted and pressed against the transfer paper. At the same time, pushing the push rods of all upper pressing cylinders 42, the upper transfer pressing block 43 is pressed down. At the same time, pushing the push rod of the first lifting cylinder 25, the tension adjusting roller 22 is lowered, so that the upper fabric and the lower transfer paper are pressed against each other and clamped between the upper transfer pressing block 43 and the anti-slip heat-conducting plate 55. The tension adjusting roller 22 is lowered to prevent the fabric from deforming due to excessive tension when it is pressed down. After pressing for 5 to 10 seconds, all cylinders return to their original positions.

[0072] (7) The suction stops at the adsorption shell 11, and the fabric and transfer paper continue to be conveyed. The transfer paper is finally wound onto the waste cylinder, and the fabric after transfer continues to be conveyed to the right. It is conveyed to the horizontal guide support plate 71 through two transmission rollers 27. The encoder counts, and when it reaches the distance to be cut, its right end is directly below the upper anti-slip plate 791. The push rod of the end pressing cylinder 78 pushes the upper anti-slip plate 791 to press the fabric. Then, the cutting motor 75 runs, causing the cutting wheel 76 to rotate. The first linear module 73 runs, causing the cutting wheel 76 to move from back to front to cut the fabric. The push rod of the end pressing cylinder 78 retracts, and the cut fabric is manually removed to complete the material removal.

[0073] During the first fabric cutting, since there is a large blank space in front of the fabric, the main machine needs to be manually controlled to cut off the excess white fabric before cutting the patterned fabric.

[0074] After processing, there is a lot of transfer paper wound on the waste cylinder. At this time, the push rod of the lifting cylinder 64 retracts, causing the waste paper mounting roller 66 and the waste cylinder to descend. After the two support plates are removed from their corresponding slots, the second linear module 61 operates to transport it to the rightmost end. Then, it is manually unloaded and replaced with an empty waste cylinder. Then, the second linear module 61 operates to move it to the left until the sensing end of the proximity switch 1 is close to the left side wall of the top plate of the moving frame 62, indicating that it has moved into place. Then, the push rod of the lifting cylinder 64 pushes the waste cylinder to lift it to the installation position, which is very convenient.

[0075] Finally, the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A heat transfer printing device for microfiber fabrics, comprising a fixed base plate (10); characterized in that: A main support frame (20) is fixed from the middle to the left of the top surface of the fixed base plate (10). A fabric printing roll (100) with microfiber fabric is installed on the upper fabric shaft on the left side of the main support frame (20). A transfer paper roll (200) is installed on the lower paper shaft on the left side of the main support frame (20). Two connecting beams (21) extending forward and backward are fixed in the middle of the front and rear side plates of the main support frame (20). A printing device (30) is installed below each connecting beam (21). The print head of the printing device (30) prints a pattern on the top surface of the transfer paper conveyed below. A heat transfer device is installed on the main support frame (20) on the right side of the printing device. The heat transfer device includes an upper pressing mechanism (40) and a lower heating device (50), which transfers the pattern of the corresponding transfer paper to the bottom surface of the fabric output by the fabric printing roll (100). A transfer paper waste paper winding mechanism (60) is installed on the lower right side of the main support frame (20), and a cutting device (70) for cutting the fabric is fixed in the middle of the right side wall of the main support frame (20).

2. The rear steering drive axle structure of an electric off-road forklift according to claim 1, characterized in that: The main support frame (20) includes two side plates, front and rear. Multiple lower support legs are fixed on the bottom surface of both side plates. The bottom end of the lower support legs is fixed on the top surface of the fixed base plate (10). Multiple front and rear extending support rods are fixed between the two side plates.

3. The rear steering drive axle structure of an electric off-road forklift according to claim 1, characterized in that: The printing device (30) includes two connecting beams (31) extending forward and backward, fixed between two side plates of the main support frame (20). Below the connecting beams (31) is an adjusting beam (32) extending forward and backward. Vertical screws (33) are fixed to the front and rear of the top surface of the adjusting beams (32). The vertical screws (33) are inserted into corresponding vertical through holes in the connecting beams (31). The top end of the vertical screws (33) extends out of the top surface of the connecting beams (31) and is screwed with an adjusting... The bottom surface of the adjusting nut (34) presses against the top surface of the corresponding connecting beam (31). A buffer spring (35) is inserted into the vertical screw (33). The bottom end of the buffer spring (35) is pressed against the top surface of the adjusting beam (32), and the top end of the buffer spring (35) is pressed against the bottom surface of the connecting beam (31). A linear module (35) is fixed on the bottom surface of the adjusting beam (32), and the bottom surface of the bottom slider of the linear module (35) is fixed with the main body of the print head. The printhead body is provided with a support guide roller (36) extending forward and backward. The front and rear ends of the support guide roller (36) are movably connected to the front and rear side plates of the main support frame (20) through bearings. The transfer paper of the transfer paper roll (200) is conveyed to the right along the top surface of the support guide roller (36).

4. The rear steering drive axle structure of an electric off-road forklift according to claim 3, characterized in that: In the printing device (30), the left adjustment beam (32) is located below the left connecting beam (31) at the rear to the front of the middle, and the right adjustment beam (32) is located below the right connecting beam (31) at the front to the rear of the middle. The print head of the left printing device (30) prints the middle to the rear of the conveyed transfer paper, and the print head of the right printing device (30) prints the front to the middle of the conveyed transfer paper.

5. The rear steering drive axle structure of an electric off-road forklift according to claim 3, characterized in that: The left side of the support guide roller (36) is provided with a feed guide roller (37), and the right side of the support guide roller (36) is provided with a discharge guide roller (38). The transfer paper is conveyed from left to right along the feed guide roller (37), support guide roller (36) and discharge guide roller (38).

6. The rear steering drive axle structure of an electric off-road forklift according to claim 5, characterized in that: The lower heating device (50) includes a horizontal connecting plate (51) fixed below the transfer paper between the discharge guide roller (38) and the roll of the transfer paper waste paper winding mechanism (60). The front and rear ends of the horizontal connecting plate (51) are fixed to the front and rear side plates of the main support frame (20). Multiple lifting cylinders (52) are fixed at the front and rear of the bottom surface of the horizontal connecting plate (51). The top of the push rod of all the lifting cylinders (52) extends out of the top surface of the horizontal connecting plate (51) and is fixed to the same lifting plate (53). A heating plate (54) is fixed on the top surface of the lifting plate (53). Multiple heating rods extending forward and backward are fixed in the heating plate (54). An anti-slip heat-conducting plate (55) is fixed on the top surface of the heating plate (54), and the transfer paper above it faces the top surface of the anti-slip heat-conducting plate (55).

7. The rear steering drive axle structure of an electric off-road forklift according to claim 6, characterized in that: The upper pressing mechanism (40) is located directly above the anti-slip heat-conducting plate (55). The upper pressing mechanism (40) includes an upper connecting plate (41) extending forward and backward. The upper connecting plate (41) is fixed on the inner sidewall of the front and rear side plates of the main support frame (20). The front and rear parts of the top surface of the upper connecting plate (41) are fixed with upper pressing cylinders (42). The bottom end of the push rod of all the upper pressing cylinders (42) extends out of the bottom surface of the upper connecting plate (41) and is fixed with the same upper transfer pressing block (43). The upper transfer pressing block (43) is located directly above the corresponding fabric. The top surface of the upper transfer pressing block (43) is fixed with multiple vertical guide rods. The vertical guide rods are inserted into the guide through holes formed on the upper connecting plate (41).

8. The rear steering drive axle structure of an electric off-road forklift according to claim 1, characterized in that: The upper part of the main support frame (20) between the right side and the upper left side guide roller (17) of the fabric printing roll (100) is provided with a first guide roller (210) and a tension adjusting roller (22). The tension adjusting roller (22) is located to the right of the first guide roller (210). The front and rear ends of the first guide roller (210) are movably connected to the front and rear side plates of the main support frame (20) through bearings. The front and rear ends of the tension adjusting roller (22) are movably connected to lifting adjusting blocks (23) through bearings. The lifting adjusting blocks (23) are inserted into the vertical grooves formed on the two side plates. In the vertical adjustment channel (24), the top of the vertical adjustment channel (24) extends out of the top surface of the side plate. Vertical guide strips are fixed on the left and right sides of the vertical adjustment channel (24). The vertical guide strips are inserted into the vertical guide grooves formed on the left and right side walls of the lifting adjustment block (23). A connecting plate is fixed on the top surface of the side plate at the top of the vertical adjustment channel (24). The first lifting cylinder (25) is fixed on the top surface of the connecting plate. The bottom end of the push rod of the first lifting cylinder (25) extends out of the bottom surface of the corresponding connecting plate and is fixed on the top surface of the corresponding lifting adjustment block (23). A buffer spring is fixed in the middle of the bottom surface of the vertical guide groove, and the top of the buffer spring is fixed on the bottom surface of the corresponding lifting adjustment block (23).

9. The rear steering drive axle structure of an electric off-road forklift according to claim 1, characterized in that: The two side plates of the main support frame (20) are each fixed with an extension plate (26) in the middle of the right side wall. A transmission roller (27) is provided between the two extension plates (26) and is arranged vertically. The two ends of the upper transmission roller (27) are movably connected to the two extension plates (26) through bearings. A reduction motor (28) is fixed on the outer side wall of one of the extension plates (26). The output shaft of the reduction motor (28) is a spline shaft, which is inserted into the spline hole at one end of the upper transmission roller (27) to drive the transmission roller (27) to rotate. An encoder is fixed on the outer wall of the extension plate (26) at the other end of the upper drive roller (27), and the encoder shaft is fixed to one end of the corresponding drive roller (27). The two ends of the lower drive roller (27) are movably connected to the lower adjusting block (271) via bearings. The lower adjusting block (271) is inserted into the upwardly extending lower slot formed in the middle of the bottom surface of the two extension plates (26). Guide strips are formed on the left and right side walls of the lower slot. The guide strips are inserted into the side guide grooves formed in the middle of the left and right side walls of the lower adjusting block (271). A bottom plate is fixed to the bottom surface of the extension plate (26). The bottom plate covers the bottom end of the corresponding lower slot. A screw thread is screwed into the screw thread through hole in the middle of the bottom plate. The lower adjusting bolt (272) has its screw part screwed into the middle screw through hole of the bottom plate. The rotating part of the lower adjusting bolt (272) is located below the bottom plate. The top end of the screw part of the lower adjusting bolt (272) is located in the lower slot and is movably connected to the bottom of the lower adjusting block (271). A buffer spring is inserted into the upper part of the screw part of the lower adjusting bolt (272). The top end of the buffer spring is applied to the bottom surface of the lower adjusting block (271), and the bottom end is applied to the top surface of the bottom plate.

10. A method for pad printing and cutting of microfiber fabric using a heat transfer printing apparatus according to claims 1 to 9, characterized in that: Includes the following steps: (1) First, install the fabric printing roll (100) and transfer paper roll (200) to be used onto the fabric roller and the paper roller; (2) The fabric of the fabric printing roll (100) and the transfer paper of the transfer paper roll 200 are both pulled out to the right along the conveying path. The right end of the transfer paper of the transfer paper roll (200) is wound onto the waste paper cylinder installed on the waste paper mounting roller (66), while the fabric of the fabric printing roll (100) is output from the two drive rollers (27). (3) All electrical components of the equipment are turned on and running. The fabric shaft and paper shaft rotate to feed the fabric printing roll (100) and the transfer paper roll (200). At the same time, the waste paper mounting roller (66) rotates to rotate and rewind the waste material cylinder. The geared motor 28 and the second geared motor run to rotate the two transmission rollers (27), so that the fabric runs through the two transmission rollers (27) to be conveyed to the right. (3) First, transport the fabric to the right for 1 to 2 meters. During this transport process, the air inlet connector (771) continuously supplies air, so that the gas is blown out from the bottom air outlet (712) and the top surface of the perforated plate to provide bottom support for the fabric being transported above, so that there is a gap of about 5 mm between the fabric and the top surface of the horizontal guide support plate (71). (4) The entire equipment is in operation, and the fabric is conveyed to the right. During the conveying process, the linear module (35) of the printing device (30) on the left first runs, causing the print head of the printing device (30) to move back and forth to print from the middle to the rear of the transfer paper. During this process, for every back and forth movement of the print head of the printing device (30), the transfer paper moves exactly one printing distance. As the transfer paper moves to the right, when the position where half of the paper has been printed reaches the printing device (30) on the right, the corresponding linear module (35) runs, thereby causing the print head of the corresponding printing device (30) to print from the middle to the front, and the pattern to be printed on the entire transfer paper is completed. After printing a pattern, there will be a blank space. The two printing devices (30) will stop printing according to the blank distance set by the control host. (5) The printed transfer paper moves to the right, and at the same time, the fabric is also conveyed to the right. When the transfer paper with the pattern moves to the top of the anti-slip heat-conducting plate (55), the transfer paper under the print head of the two printing devices (30) is in the blank stage. At this time, the fabric and the transfer paper stop running, so that the transfer paper above the anti-slip heat-conducting plate 55 will not move. (6) The push rods of all lifting cylinders (52) are pushed to lift the anti-slip heat-conducting plate (55) and press it against the transfer paper. At the same time, the push rods of all upper pressing cylinders (42) are pushed to press down the upper transfer pressing block (43). At the same time, the push rod of the first lifting cylinder (25) is pushed to lower the tension adjusting roller (22), so that the upper fabric and the lower transfer paper press against each other and are clamped between the upper transfer pressing block (43) and the anti-slip heat-conducting plate (55). It is lowered by the tension adjusting roller (22). After pressing for 5 to 10 seconds, all cylinders return to their original positions. (7) The fabric and transfer paper continue to be conveyed. The transfer paper is finally wound onto the waste cylinder, and the fabric after transfer continues to be conveyed to the right. It is conveyed to the horizontal guide support plate (71) through two transmission rollers (27). The encoder counts and when it reaches the distance to be cut, its right end is directly below the upper anti-slip plate (791). The upper anti-slip plate (791) is pressed by the push rod of the end pressing cylinder (78). Then, the cutting motor (75) runs, causing the cutting wheel (76) to rotate. The cutting wheel (76) moves from back to front through the first linear module (73) to cut the fabric. The push rod of the end pressing cylinder (78) retracts, and the cut fabric is manually removed to complete the material removal.

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