Intelligent pcm temperature-adjusting printing method
The digital inkjet printing equipment using dual inkjet printing components and hexagonal flat panel components has solved the problem of integrating color pigments with PCM microcapsules, achieving efficient and precise printing of color and PCM, and improving the registration accuracy and cooling effect of the printing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-21
- Publication Date
- 2026-03-27
AI Technical Summary
In existing PCM cooling printing technology, the integration of colored pigments with PCM microcapsules is difficult, affecting color vibrancy and cooling efficiency, and high registration accuracy is hard to achieve.
The digital inkjet printing equipment, which uses dual printing components and combines a hexagonal flat panel component, achieves high-precision continuous printing of color and PCM. The temperature profile is controlled by ironing before printing and high-temperature baking after printing.
It achieves efficient and precise printing of color and PCM, ensuring color vibrancy and a cooling effect while improving the registration accuracy of the print.
Smart Images
Figure CN121733952A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the new technical field of digital inkjet printing, in particular to a PCM intelligent temperature-regulating printing method. BACKGROUND
[0002] Digital inkjet printing technology is a high-tech product integrating machinery, computer and electronic information technology, which first appeared in the mid-1990s. The emergence and continuous improvement of this technology have brought a new concept to the textile printing and dyeing industry. Its advanced production principles and means have brought an unprecedented development opportunity to the textile printing and dyeing industry. It is hailed as the revolutionary technology of the textile industry in the 21st century, and it will gradually replace traditional printing methods and become the main equipment for textile printing. In recent years, digital inkjet printing technology has made great progress at home and abroad. Flatbed digital inkjet printing machines can realize personalized printing of garments and other products, and their technology, types and functions are constantly improving.
[0003] PCM is an intelligent material that can undergo solid-liquid or liquid-solid phase transition at a specific temperature, usually in the range of human comfortable skin temperature, such as 24-32℃. Heat absorption process (feeling cool): when the ambient temperature or skin temperature is higher than the phase transition temperature of PCM, PCM will melt from solid to liquid, and it will absorb and store a large amount of heat during this process, making you feel cool instantly. Heat release process (heat storage buffer): when the temperature drops, PCM will solidify from liquid to solid and release the stored heat, providing a warm buffer to avoid overcooling. Cool printing is to fix the material containing PCM microcapsules on the fabric through printing process.
[0004] In PCM cool printing, how to harmoniously integrate color pigments (dyes / pigments) and PCM microcapsules in the same printing system without affecting the performance of both is the key. Currently, there are generally two main process routes, one is to first print the bottom color and then print the top PCM, which is the most commonly used and reliable method; it includes pattern design and pretreatment, color printing, PCM cool printing, curing, post-treatment and other steps, the other is PCM color mixed printing, which includes preparation of PCM color mixed paste, printing, curing and post-treatment, etc. This method also has problems such as insufficient color brightness, difficulty in paste preparation, and impact on cooling efficiency.
[0005] In the first bottom color printing and then top PCM printing, the top transparent PCM paste needs to be accurately and completely covered on the already printed color pattern of the bottom layer. Any slight deviation will cause "white exposure" and "misalignment", and the temperature curve needs to be precisely controlled to achieve accurate curing of both. SUMMARY
[0006] The purpose of the present application is to provide a PCM intelligent temperature regulating printing method, by using a digital inkjet printing equipment with double printing assembly, to realize the continuous printing of the required image on the fabric on the flat plate in a controllable stretching state with high overprint precision of color first and PCM later, and to realize the precise control of the temperature curve in printing by cooperating with the ironing arrangement before printing and high temperature baking after printing, and then to realize efficient printing.
[0007] The present application provides a PCM intelligent temperature regulating printing method, using an integrated digital inkjet printing machine including a head assembly and a flat plate assembly, the head assembly including a color printing head assembly and a PCM printing head assembly composed of a head support system and a nozzle assembly, the nozzle assembly being connected to the head support system through an upward connecting piece, the nozzle assembly being composed of an upper ink cylinder and a lower printing cylinder; The upper ink cylinder of the color printing head assembly includes red, green and blue ink cylinders, which are connected to the ink stack through ink pipelines with control switch openings, the air pressure generated by the piezoelectric controller at the top of each ink cylinder controls the ejection of ink from the ink ejection hole at the bottom, the middle of the lower printing cylinder is provided with an ink oscillation mixing device, and the bottom is provided with a color printing hole controlled by pressure sensing; The upper ink cylinder of the PCM printing head assembly includes a PCM ink cylinder, which is connected to the PCM slurry stack through a PCM slurry pipeline with a control switch opening, the air pressure generated by the piezoelectric controller at the top of the PCM ink cylinder controls the ejection of PCM slurry from the PCM slurry ejection hole at the bottom, and the bottom of the lower printing cylinder is provided with a PCM printing hole controlled by pressure sensing; The flat plate assembly includes a flat plate support system and a hexagonal printing flat plate supported thereby, a first arc-shaped groove at the connection between the upper surface and the left upper surface of the printing flat plate is provided with a first pressing lower roller rotating therein, a second arc-shaped groove in the middle of the upper surface is provided with a second pressing lower roller rotating therein, a third arc-shaped groove at the connection between the upper surface and the right upper surface is provided with a first pressing lower roller rotating therein, the first, second and third pressing lower rollers are gear driven with each other, and the first, second and third pressing lower rollers are respectively provided with elastic pressing pins thereon; a fourth heating roller is rotatingly provided at the connection between the left upper surface and the left lower surface through a connecting pin, a fifth ironing roller is rotatingly provided in the fifth arc-shaped groove at the connection between the left lower surface and the lower surface, a sixth PCM curing roller is rotatingly provided at the connection between the right upper surface and the right lower surface through a connecting pin, and a seventh color curing roller is rotatingly provided in the seventh arc-shaped groove at the connection between the right lower surface and the lower surface; When printing, the fabric on the fabric feeding roller is in close contact with the fourth heating roller and keeps a distance from the fifth ironing roller. The fabric is first subjected to the uniform penetration of the moist heat flow from the fifth ironing roller under the natural rotation of the moist heat flow, and then subjected to the drying arrangement of the fourth heating roller under the rotation of the fabric. Then the fabric keeps close contact between the sixth PCM solidification roller and the seventh color solidification roller under the decreasing action force. The heat generated by the sixth PCM solidification roller is directly transmitted from the inside to the outside of the stretched fabric, and the main solidification of PCM printing and auxiliary solidification of color printing are generated. The heat generated by the seventh color solidification roller directly acts on the inside of the fabric in a natural state, and the main solidification of color printing and the auxiliary solidification of PCM printing are generated.
[0008] The PCM intelligent temperature-adjusting printing method as described above, wherein preferably, the color jet printing head assembly is located directly above the printing plate between the first and second pressing down rollers, and the PCM jet printing head assembly is located directly above the printing plate between the second and third pressing down rollers.
[0009] The PCM intelligent temperature-adjusting printing method as described above, wherein preferably, The head support system comprises an outer head support vertical rod and an inner head support vertical rod. The bottom ends of the outer head support vertical rod and the inner head support vertical rod are fixed to the ground. A jet group running horizontal rod is fixedly connected between the top ends of the outer head support vertical rod and the inner head support vertical rod. The outward end and the inward end of the jet group running horizontal rod are fixedly connected with the top ends of the outer head support vertical rod and the inner head support vertical rod, respectively. A jet head assembly is arranged at the bottom of the jet group running horizontal rod. The jet head assembly comprises an upward connecting piece and a jet group. The upward connecting piece is slidingly connected with the bottom of the jet group running horizontal rod. The upward connecting pieces of the color jet printing head assembly and the PCM jet printing head assembly are jointly driven by a first motor to slide back and forth along the jet group running horizontal rod. The top of the jet group is fixedly connected with the bottom of the upward connecting piece. The first motor drives the upward connecting piece to slide back and forth along the jet group running horizontal rod.
[0010] The PCM intelligent temperature-adjusting printing method as described above, wherein preferably, The ink feeding cylinder of the color ink jet printer head assembly includes a red ink cylinder, a green ink cylinder and a blue ink cylinder, which respectively contain red ink, green ink and blue ink, and a first control switch opening, a second control switch opening and a third control switch opening are respectively installed on the upper part of the red ink cylinder, the green ink cylinder and the blue ink cylinder, the first control switch opening, the second control switch opening and the third control switch opening are respectively connected with a red ink pipeline, a green ink pipeline and a blue ink pipeline, the other end of the red ink pipeline, the green ink pipeline and the blue ink pipeline is respectively connected with a red ink tank, a green ink tank and a blue ink tank, the red ink tank, the green ink tank and the blue ink tank contain red ink, green ink and blue ink, and the first control switch opening, the second control switch opening and the third control switch opening are motion control switches, when the printer head is in a motion state, the first control switch opening, the second control switch opening and the third control switch opening are all in a closed state, so that the red ink pipeline, the green ink pipeline and the blue ink pipeline stop supplying ink, when the printer head is in a static state, the first control switch opening, the second control switch opening and the third control switch opening are all in an open state, so that the red ink pipeline, the green ink pipeline and the blue ink pipeline supply ink until the ink supply is completed; a red piezoelectric controller, a green piezoelectric controller and a blue piezoelectric controller are respectively installed on the top of the red ink cylinder, the green ink cylinder and the blue ink cylinder, the red piezoelectric controller, the green piezoelectric controller and the blue piezoelectric controller have the same structure, and generate corresponding air pressure after receiving a voltage signal, and a red ink jet hole, a green ink jet hole and a blue ink jet hole are respectively installed on the bottom of the red ink cylinder, the green ink cylinder and the blue ink cylinder, when the red ink cylinder, the green ink cylinder and the blue ink cylinder are closed and subjected to a certain air pressure, the red ink jet hole, the green ink jet hole and the blue ink jet hole respectively jet the red ink, the green ink and the blue ink in the red ink cylinder, the green ink cylinder and the blue ink cylinder. The top part of the lower ink jet cylinder of the color ink jet printer head assembly is open and is connected with the red ink jet hole, the green ink jet hole and the blue ink jet hole of the bottom part of the red ink cylinder, the green ink cylinder and the blue ink cylinder, an ink oscillation and mixing device is arranged at the middle part of the lower ink jet cylinder, the mixed ink falls to the bottom part of the lower ink jet cylinder after oscillation and mixing, a color ink jet hole is arranged at the bottom part of the lower ink jet cylinder, and the color ink jet hole is a pressure sensitive control jet device, when the color ink jet hole is subjected to the pressure of the mixed ink falling down, the color ink jet hole jets the mixed ink falling down at a certain speed.
[0011] The PCM intelligent temperature regulating printing method, wherein, preferably, The ink supply cylinder of the PCM inkjet head assembly includes a PCM ink cylinder, a fourth control switch opening is additionally arranged on the upper part of the PCM ink cylinder, the fourth control switch opening is connected with a PCM paste pipeline, the other end of the PCM paste pipeline is connected with a PCM paste stack, the PCM paste stack contains PCM paste required for printing, the fourth control switch opening is a motion control switch, when the nozzle is in a motion state, the fourth control switch opening is in a closed state, so that the PCM cooling paste pipeline stops supplying paste, when the nozzle is in a stationary state, the fourth control switch opening is in an open state, so that the PCM cooling paste pipeline supplies paste until it is full; a PCM piezoelectric controller is additionally arranged on the top of the PCM ink cylinder, the PCM piezoelectric controller has the same structure as the red piezoelectric controller, the green piezoelectric controller and the blue piezoelectric controller, the PCM piezoelectric controller generates a corresponding air pressure after receiving a voltage signal, a PCM paste spray hole is additionally arranged on the bottom of the PCM ink cylinder, when the PCM ink cylinder is closed and subjected to a certain air pressure, the PCM paste spray hole sprays the PCM paste in the PCM ink cylinder. The top of the lower printing cylinder of the PCM inkjet head assembly is open and connected with the PCM paste spray hole at the bottom of the PCM ink cylinder, a PCM printing hole is arranged at the bottom of the lower printing cylinder, the PCM printing hole is a pressure-sensitive controlled spraying device, when the PCM printing hole is subjected to the pressure of the PCM paste falling down, the PCM printing hole sprays the PCM paste falling down at a certain speed.
[0012] The PCM intelligent temperature-adjusting printing method has the advantages that the printing plate support system includes left outer plate support vertical rods, right outer plate support vertical rods, left inner plate support vertical rods and right inner plate support vertical rods, the printing plate is supported on the plate support system, the printing plate has a hexagonal structure and is a hollow structure, the printing plate includes an upper plane, a lower plane, a left upper plane, a left lower plane, a right upper plane and a right lower plane, the upper plane and the lower plane are horizontal, and the left outer point, the right outer point, the left inner point and the right inner point of the lower plane of the printing plane are fixedly connected with the top ends of the left outer plate support vertical rods, the right outer plate support vertical rods, the left inner plate support vertical rods and the right inner plate support vertical rods respectively.
[0013] The PCM intelligent temperature-adjusting printing method has the advantages that the printing plate support system includes left outer plate support vertical rods, right outer plate support vertical rods, left inner plate support vertical rods and right inner plate support vertical rods, the printing plate is supported on the plate support system, the printing plate has a hexagonal structure and is a hollow structure, the printing plate includes an upper plane, a lower plane, a left upper plane, a left lower plane, a right upper plane and a right lower plane, the upper plane and the lower plane are horizontal, and the left outer point, the right outer point, the left inner point and the right inner point of the lower plane of the printing plane are fixedly connected with the top ends of the left outer plate support vertical rods, the right outer plate support vertical rods, the left inner plate support vertical rods and the right inner plate support vertical rods respectively. The left side edge of the upper plane of the printing plate and the upper side edge of the left upper plane are connected through a first arc-shaped groove, a first pressing lower roller is arranged in the first arc-shaped groove, the outward end and the inward end of the first pressing lower roller are connected with the printing plate through bearings respectively, and a first pressing upper roller is arranged on the first pressing lower roller. A second arc-shaped groove is formed in the middle of the length of the upper plane of the printing plate, and a second pressing lower roller is arranged in the second arc-shaped groove. The outward end and the inward end of the second pressing lower roller are respectively connected with the printing plate through bearings. A second pressing upper roller is arranged on the second pressing lower roller. A third arc-shaped groove is formed between the right side edge of the upper plane of the printing plate and the upper side edge of the right upper plane. A third pressing lower roller is arranged in the third arc-shaped groove. The outward end and the inward end of the third pressing lower roller are respectively connected with the printing plate through bearings. A third pressing upper roller is arranged on the third pressing lower roller. The first pressing upper roller, the second pressing upper roller and the third pressing upper roller have the same structure, which comprises an upper roller shaft and an upper roller sleeve. The upper roller sleeve is sleeved on the upper roller shaft through bearings, and the two ends of the upper roller shaft after being sleeved both protrude out of the upper roller sleeve. The two ends of the upper roller shaft of the first pressing upper roller, the second pressing upper roller and the third pressing upper roller are respectively connected with the first pressing lower roller, the second pressing lower roller and the third pressing lower roller through elastic pressing pins. When the elastic pressing pins are pressed downward and connected with the corresponding pressing lower rollers, the first pressing upper roller, the second pressing upper roller and the third pressing upper roller are respectively pressed with the first pressing lower roller, the second pressing lower roller and the third pressing lower roller. When the elastic pressing pins are disconnected with the corresponding pressing lower rollers, the first pressing upper roller, the second pressing upper roller and the third pressing upper roller respectively keep a certain distance with the first pressing lower roller, the second pressing lower roller and the third pressing lower roller. The third pressing lower roller is driven to rotate by a second motor. The second pressing lower roller and the third pressing lower roller are connected through a first gear set. The first pressing lower roller and the second pressing lower roller are connected through a second gear set. The linear speed of the rotation of the second pressing lower roller and the third pressing lower roller is the same and greater than the linear speed of the rotation of the first pressing lower roller.
[0014] The fourth heating roller is arranged at the connection between the lower side edge of the left upper plane of the printing plate and the upper side edge of the left lower plane. The fourth heating roller is heated by an electric heating wire. The outward end of the fourth heating roller is connected with the first outer connecting pin bearing. The inward end of the fourth heating roller is connected with the first inner connecting pin bearing. The first outer connecting pin and the first inner connecting pin are fixedly connected with the printing plate. The lower side edge of the left lower plane of the printing plate and the left side edge of the lower plane are connected through a fifth arc-shaped groove. A fifth ironing roller is arranged in the fifth arc-shaped groove. The outward end and the inward end of the fifth ironing roller are respectively connected with the printing plate through bearings. Ironing holes are formed at equal intervals along the side surface of the fifth ironing roller. A heating device is arranged in the fifth ironing roller. The fifth ironing roller and the humidifier are connected through bearings. The junction of the lower side edge of the right upper plane of the printing plate and the upper side edge of the right lower plane is provided with a sixth PCM curing roller, the sixth PCM curing roller is electrically heated and cured with controllable temperature, the outward end of the sixth PCM curing roller is connected with the second outer connecting pin bearing, the inward end of the sixth PCM curing roller is connected with the second inner connecting pin bearing, and the second outer connecting pin, the second inner connecting pin and the printing plate are fixedly connected; The lower side edge of the right lower plane of the printing plate and the right side edge of the lower plane are connected through a seventh arc-shaped groove, a seventh color curing roller is arranged in the seventh arc-shaped groove, the outward end and the inward end of the seventh color curing roller are connected with the printing plate through bearings respectively, and the seventh color curing roller is electrically heated and cured with controllable temperature; A fabric feeding roller is arranged on the left side of the lower plane, and a fabric winding roller is arranged on the right side of the lower plane, the fabric winding roller is driven to rotate by the third motor The rotating linear speed of the second pressing lower roller is preferably within 1.1 times of that of the first pressing lower roller.
[0015] The fourth heating roller of the printing plate supports the fabric, so that the fabric and the fifth ironing roller are tightly attached, and a certain distance is maintained between the fabric and the fifth ironing roller, the wet and hot airflow emitted from the fifth ironing roller flows out through the ironing holes, the natural rotation of the fifth ironing roller is generated under the driving of the flowing wet and hot airflow, the wet and hot airflow uniformly penetrates into the fabric under the natural rotation, the ironing and finishing of the fabric are realized, the fabric after ironing is subjected to drying and finishing under the action of the tightly attached fourth heating roller, and the fabric rotation drives the fourth heating roller to rotate synchronously, thereby realizing the uniform finishing of the fabric before printing.
[0016] Compared with the prior art, the integrated digital inkjet printing equipment with the double-jet printing assembly is adopted, the fixed printing plate with the six-edge structure and supported by the supporting system is matched, the continuous printing with high overprint precision of the required image on the fabric on the upper plane of the printing plate is realized, the color printing in the controllable stretching state and the PCM printing in the natural stretching state are realized, the precise control of the temperature curve required after twice printing is realized by cooperating with the ironing and finishing before printing and the high-temperature baking after printing, and then the efficient PCM cool feeling printing is realized. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is an integrated digital inkjet printing machine structure schematic diagram provided by the embodiment of the present application.
[0018] MARK NUMBER EXPLANATION: 1-color inkjet head assembly, 2-PCM inkjet head assembly, 3-head group running crossbar, 4-outer head support vertical rod, 5-inner head support vertical rod, 6-head assembly, 7-upward connecting piece, 8-head group, 9-left outer flat plate support vertical rod, 10-right outer flat plate support vertical rod, 11-left inner flat plate support vertical rod, 12-right inner flat plate support vertical rod, 13-first pressing lower roller, 14-first pressing upper roller, 15-second pressing lower roller, 16-second pressing upper roller, 17-third pressing lower roller, 18-third pressing upper roller, 19-fifth ironing roller, 20-ironing hole, 21-fourth heating roller, 22-sixth PCM curing roller, 23-seventh color curing roller, 24-printing flat plate. DETAILED DESCRIPTION
[0019] The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be explained as a limitation of the present application.
[0020] A PCM intelligent temperature control printing method adopts an integrated digital inkjet printing machine, which comprises a head assembly and a flat plate assembly.
[0021] Referring to Figure 1 As shown in the figure, the head assembly comprises identical color inkjet head assemblies 1 and PCM inkjet head assemblies 2, which comprise a head support system and a head assembly 6.
[0022] The head support system comprises outer head support vertical rods 4 and inner head support vertical rods 5, the bottom ends of the outer head support vertical rods 4 and the inner head support vertical rods 5 are fixed on the ground, a head group running crossbar 3 is fixedly connected between the top ends of the outer head support vertical rods 4 and the inner head support vertical rods 5, and the outward end and the inward end of the head group running crossbar 3 are fixedly connected with the top ends of the outer head support vertical rods 4 and the inner head support vertical rods 5, respectively.
[0023] A head assembly 6 is arranged at the bottom of the head group running crossbar 3, the head assembly 6 comprises an upward connecting piece 7 and a head group 8, the upward connecting piece 7 is slidably connected with the bottom of the head group running crossbar 3, the upward connecting pieces 7 of the color inkjet head assemblies 1 and the PCM inkjet head assemblies 2 are jointly driven by a first motor to slide back and forth along the head group running crossbar 3, the top of the head group 8 is fixedly connected with the bottom of the upward connecting piece 7, the first motor drives the upward connecting piece 7 to slide back and forth along the head group running crossbar 3, and in turn drives the head group 8 to slide back and forth along the head group running crossbar 3, the head group 8 comprises inkjet heads arranged at equal intervals along the transverse and longitudinal directions, thereby forming an inkjet head matrix, the inkjet heads comprise ink supply tubes and lower inkjet tubes.
[0024] The ink supply tubes of the color inkjet printer head assembly 1 include red ink supply tube, green ink supply tube and blue ink supply tube, which respectively contain red ink, green ink and blue ink. First control switch opening, second control switch opening and third control switch opening are respectively installed on the upper part of the red ink supply tube, green ink supply tube and blue ink supply tube. The first control switch opening, second control switch opening and third control switch opening are respectively connected with red ink supply line, green ink supply line and blue ink supply line. The other end of the red ink supply line, green ink supply line and blue ink supply line is respectively connected with red ink tank, green ink tank and blue ink tank. The red ink tank, green ink tank and blue ink tank contain red ink, green ink and blue ink. The first control switch opening, second control switch opening and third control switch opening are motion control switches. When the printer head is in motion, the first control switch opening, second control switch opening and third control switch opening are in closed state, so that the red ink supply line, green ink supply line and blue ink supply line stop supplying ink. When the printer head is in static state, the first control switch opening, second control switch opening and third control switch opening are in open state, so that the red ink supply line, green ink supply line and blue ink supply line supply ink until the ink supply is completed. Red piezoelectric controller, green piezoelectric controller and blue piezoelectric controller are respectively installed on the top of the red ink supply tube, green ink supply tube and blue ink supply tube. The red piezoelectric controller, green piezoelectric controller and blue piezoelectric controller have the same structure. The red piezoelectric controller, green piezoelectric controller and blue piezoelectric controller generate corresponding air pressure after receiving voltage signal. Red ink jet, green ink jet and blue ink jet are respectively installed on the bottom of the red ink supply tube, green ink supply tube and blue ink supply tube. When the red ink supply tube, green ink supply tube and blue ink supply tube are closed and subjected to certain air pressure, the red ink jet, green ink jet and blue ink jet respectively jet the red ink, green ink and blue ink in the red ink supply tube, green ink supply tube and blue ink supply tube.
[0025] The top of the lower inkjet cylinder of the color inkjet printer head assembly 1 is open and connected with the red ink jet, green ink jet and blue ink jet of the bottom of the red ink supply tube, green ink supply tube and blue ink supply tube. Ink oscillation mixing device is arranged in the middle part of the lower inkjet cylinder. The mixed ink falls to the bottom of the lower inkjet cylinder after oscillation. Color inkjet hole is arranged in the bottom of the lower inkjet cylinder. The color inkjet hole is pressure sensitive control jet device. When the color inkjet hole is subjected to the pressure of the mixed ink falling down, the color inkjet hole jets the mixed ink falling down at a certain speed.
[0026] The upper ink cartridge of the PCM jet head assembly 2 comprises a PCM ink cartridge, and a fourth control switch opening is additionally arranged at the upper part of the PCM ink cartridge. The fourth control switch opening is connected with a PCM paste pipeline, and the other end of the PCM paste pipeline is connected with a PCM paste stack. The PCM paste stack contains PCM paste required for jet printing. The fourth control switch opening is a motion control switch. When the jet head is in a motion state, the fourth control switch opening is in a closed state, so that the PCM cooling paste pipeline stops supplying paste. When the jet head is in a static state, the fourth control switch opening is in an open state, so that the PCM cooling paste pipeline supplies paste until it is full. A PCM piezoelectric controller is additionally arranged at the top of the PCM ink cartridge. The PCM piezoelectric controller has the same structure as the red piezoelectric controller, the green piezoelectric controller and the blue piezoelectric controller. The PCM piezoelectric controller generates a corresponding air pressure after receiving a voltage signal. A PCM paste jet hole is additionally arranged at the bottom of the PCM ink cartridge. When the PCM ink cartridge is closed and subjected to a certain air pressure, the PCM paste jet hole sprays the PCM paste in the PCM ink cartridge.
[0027] The top of the lower jet cartridge of the PCM jet head assembly 2 is open and connected with the PCM paste jet hole at the bottom of the PCM ink cartridge. A PCM jet hole is arranged at the bottom of the lower jet cartridge. The PCM jet hole is a pressure-sensitive control jet device. When the PCM jet hole is subjected to the pressure of the PCM paste falling down, the PCM jet hole sprays the PCM paste falling down at a certain speed.
[0028] The flat plate assembly comprises a flat plate support system.
[0029] The flat plate support system comprises a left outer flat plate support vertical rod 9, a right outer flat plate support vertical rod 10, a left inner flat plate support vertical rod 11 and a right inner flat plate support vertical rod 12. A printing flat plate 24 is supported on the flat plate support system. The printing flat plate 24 has a hexagonal structure and a hollow structure. The printing flat plate 24 comprises an upper plane, a lower plane, a left upper plane, a left lower plane, a right upper plane and a right lower plane. The upper plane and the lower plane are horizontal. The left outer point, the right outer point, the left inner point and the right inner point of the lower plane of the printing flat plane are fixedly connected with the top ends of the left outer flat plate support vertical rod 9, the right outer flat plate support vertical rod 10, the left inner flat plate support vertical rod 11 and the right inner flat plate support vertical rod 12 respectively.
[0030] The left side edge of the upper plane of the printing flat plate 24 and the upper side edge of the left upper plane are connected through a first arc-shaped groove. A first pressing lower roller 13 is arranged in the first arc-shaped groove. The outward end and the inward end of the first pressing lower roller 13 are connected with the printing flat plate 24 through bearings respectively. A first pressing upper roller 14 is arranged on the first pressing lower roller 13.
[0031] A second arc-shaped groove is formed in the middle of the length of the upper plane of the printing plate 24, and a second pressing lower roller 15 is arranged in the second arc-shaped groove. The outward end and the inward end of the second pressing lower roller 15 are respectively connected with the printing plate 24 through bearings, and a second pressing upper roller 16 is arranged on the second pressing lower roller 15.
[0032] A third arc-shaped groove is formed between the right side edge of the upper plane of the printing plate 24 and the upper side edge of the right upper plane, and a third pressing lower roller 17 is arranged in the third arc-shaped groove. The outward end and the inward end of the third pressing lower roller 17 are respectively connected with the printing plate 24 through bearings, and a third pressing upper roller 18 is arranged on the third pressing lower roller 17.
[0033] The first pressing upper roller 14, the second pressing upper roller 16, and the third pressing upper roller 18 have the same structure, including an upper roller shaft and an upper roller sleeve. The upper roller sleeve is sleeved on the upper roller shaft through bearings, and the two ends of the upper roller shaft after being sleeved both protrude out of the upper roller sleeve. The two ends of the upper roller shaft of the first pressing upper roller 14, the second pressing upper roller 16, and the third pressing upper roller 18 are respectively connected with the first pressing lower roller 13, the second pressing lower roller 15, and the third pressing lower roller 17 through elastic pressing pins. When the elastic pressing pins are pressed down and connected with the corresponding pressing lower rollers, the first pressing upper roller 14, the second pressing upper roller 16, and the third pressing upper roller 18 are respectively pressed with the first pressing lower roller 13, the second pressing lower roller 15, and the third pressing lower roller 17. When the elastic pressing pins are disconnected with the corresponding pressing lower rollers, the first pressing upper roller 14, the second pressing upper roller 16, and the third pressing upper roller 18 respectively maintain a certain distance with the first pressing lower roller 13, the second pressing lower roller 15, and the third pressing lower roller 17.
[0034] The third pressing lower roller 17 is driven to rotate by a second motor. The second pressing lower roller 15 and the third pressing lower roller 17 are connected through a first gear set for transmission. The first pressing lower roller 13 and the second pressing lower roller 15 are connected through a second gear set for transmission, and the linear speed of rotation of the second pressing lower roller 15 and the third pressing lower roller 17 is the same and greater than the linear speed of rotation of the first pressing lower roller 13.
[0035] The nozzle assembly 6 of the color inkjet printer head assembly 1 is located directly above the upper plane of the printing plate 24 between the first pressing lower roller 13 and the second pressing lower roller 15. The nozzle assembly 6 of the PCM inkjet printer head assembly 2 is located directly above the upper plane of the printing plate 24 between the second pressing lower roller 15 and the third pressing lower roller 17.
[0036] The lower side of the upper left plane of the printing plate 24 and the upper side of the lower left plane are connected with the fourth heating roller 21, which is heated by electric heating wire. The outward end of the fourth heating roller 21 is connected with the first outer connecting pin bearing, and the inward end of the fourth heating roller 21 is connected with the first inner connecting pin bearing. The first outer connecting pin, the first inner connecting pin and the printing plate 24 are fixedly connected.
[0037] The lower side of the lower left plane of the printing plate 24 and the left side of the lower plane are connected through the fifth arc-shaped groove, and the fifth ironing roller 19 is arranged in the fifth arc-shaped groove. The outward end and the inward end of the fifth ironing roller 19 are respectively connected with the printing plate 24 through bearings. The ironing holes 20 are opened at the side of the fifth ironing roller 19 at equal intervals. The heating device is arranged in the fifth ironing roller 19, and the fifth ironing roller 19 is connected with the humidifier through the bearing.
[0038] The lower side of the upper right plane of the printing plate 24 and the upper side of the lower right plane are connected with the sixth PCM curing roller 22, which is heated and cured by temperature-controllable electric heating. The outward end of the sixth PCM curing roller 22 is connected with the second outer connecting pin bearing, and the inward end of the sixth PCM curing roller 22 is connected with the second inner connecting pin bearing. The second outer connecting pin, the second inner connecting pin and the printing plate 24 are fixedly connected.
[0039] The lower side of the lower right plane of the printing plate 24 and the right side of the lower plane are connected through the seventh arc-shaped groove, and the seventh color curing roller 23 is arranged in the seventh arc-shaped groove. The outward end and the inward end of the seventh color curing roller 23 are respectively connected with the printing plate 24 through bearings. The seventh color curing roller 23 is heated and cured by temperature-controllable electric heating.
[0040] The fabric to be printed is wound on the cloth feeding roller arranged at the left side of the lower plane. The cloth winding roller arranged at the right side of the lower plane is driven to rotate by the third motor.
[0041] Before printing, the elastic pressing pins are disconnected with the corresponding pressing lower rollers, so that the first pressing upper roller 14, the second pressing upper roller 16 and the third pressing upper roller 18 are kept at a certain distance from the first pressing lower roller 13, the second pressing lower roller 15 and the third pressing lower roller 17 respectively. The spray head assembly 6 is arranged at the front end of the spray head running crossbar 3. The fabric to be printed is wound on the cloth feeding roller. The head end of the fabric is wound out of the cloth feeding roller, and then sequentially passes through the fifth ironing roller 19, the fourth heating roller 21, the first pressing lower roller 13 and the first pressing upper roller 14, the second pressing lower roller 15 and the second pressing upper roller 16, the third pressing lower roller 17 and the third pressing upper roller 18, the sixth PCM curing roller 22 and the seventh color curing roller 23, and is wound on the cloth winding roller, so as to complete the initialization setting of the fabric.
[0042] When printing, the elastic pressing pins are connected with the corresponding pressing lower rollers, so that the first pressing upper roller 14, the second pressing upper roller 16 and the third pressing upper roller 18 are pressed with the first pressing lower roller 13, the second pressing lower roller 15 and the third pressing lower roller 17 respectively. The third motor drives the cloth roller to rotate, the second motor drives the third pressing lower roller 17 to rotate, and then drives the third pressing upper roller 18 pressed with it to rotate synchronously, and the linear speed of the third pressing lower roller 17 is consistent with the linear speed of the cloth roller. The third pressing lower roller 17 drives the second pressing lower roller 15 to rotate through the first gear set, and then drives the second pressing upper roller 16 pressed with it to rotate synchronously. The second pressing lower roller 15 drives the first pressing lower roller 13 to rotate through the second gear set, and then drives the first pressing upper roller 14 pressed with it to rotate synchronously. Thus the fabric is continuously wound from the cloth roller to the cloth roller.
[0043] When printing, the fabric is supported by the fourth heating roller 21 extended from the printing flat plate 24, so that the two are in close contact, and the fabric and the fifth ironing roller 19 maintain a certain distance, the wet hot air flow emitted from the fifth ironing roller 19 flows out through the ironing hole 20, under the driving of the flowing wet hot air flow, the ironing roller produces natural rotation, under this natural rotation, the wet hot air flow uniformly penetrates into the fabric, realizing the ironing and finishing of the fabric, and the fabric after ironing is dried and finished under the action of the closely contacted fourth heating roller 21, and the fabric rotates to drive the fourth heating roller 21 to rotate synchronously, realizing the uniform finishing effect of the fabric before printing.
[0044] The fabric finished before printing is driven by the first pressing lower roller 13 and the first pressing upper roller 14 to enter the upper plane of the printing flat plate 24, and the required color printing is carried out between the first pressing lower roller 13 and the second pressing lower roller 15.
[0045] In the color printing, the rotational linear speed of the second press-down roller 15 is set to be within 1.1 times of the first press-down roller 13, so that the fabric is stretched under a certain tension between the two. The image of the required color printing is decomposed, so that the gray value matrix of the image of the required color printing is first decomposed into a red gray matrix, a green gray matrix, and a blue gray matrix, and then the decomposed red gray matrix, green gray matrix, and blue gray matrix are converted into a red voltage control signal matrix, a green voltage control signal matrix, and a blue control signal matrix. The control signals in the decomposed red voltage control signal matrix, green voltage control signal matrix, and blue control signal matrix are transmitted to the red piezoelectric controller, green piezoelectric controller, and blue piezoelectric controller of the red ink cartridge, green ink cartridge, and blue ink cartridge of each nozzle in the nozzle group 8. When the fabric moves to the upper plane of the printing plate 24, the red piezoelectric controller, green piezoelectric controller, and blue piezoelectric controller of the red ink cartridge, green ink cartridge, and blue ink cartridge generate air pressure of corresponding size under the control of the received red voltage control signal, green voltage control signal, and blue control signal. Under the action of the air pressure, the red ink ejection hole, green ink ejection hole, and blue ink ejection hole of the red ink cartridge, green ink cartridge, and blue ink cartridge in the closed state respectively eject the red ink, green ink, and blue ink in the red ink cartridge, green ink cartridge, and blue ink cartridge, and the amount of the ejected red ink, green ink, and blue ink is directly determined by the amount of the generated air pressure. The ink ejected from the respective ink ejection holes is oscillated and mixed by the ink oscillation and mixing device to form the required color, and then falls to the color ejection hole at the bottom of the lower ejection cylinder. When the color ejection hole is subjected to the pressure of the falling mixed ink, the color ejection hole sprays the falling mixed ink at a certain speed, so as to be printed on the fabric directly below the nozzle group 8, thereby completing the color printing of the fabric at one position under a certain stretch. Through the stretch control of the fabric, the sprayed ink is uniformly permeated on the fabric. The first motor drives the upward connecting piece 7 to slide back and forth along the nozzle group running cross bar 3, thereby driving the nozzle group 8 to slide back and forth along the nozzle group running cross bar 3, so as to realize the continuous color printing in the width direction of the fabric. Through the driving of the conveyor belt, the fabric is continuously wound from the fabric feeding roller to the fabric winding roller, so as to realize the continuous color printing in the length direction of the fabric.
[0046] The fabric on which the color printing is completed is continuously conveyed forward under the driving of the second press-down roller 15 and the second press-up roller 16 which press each other, and the required PCM printing is performed between the second press-down roller 15 and the third press-down roller 17.
[0047] In the PCM printing, the rotational linear speed of the second pressurizing lower roller 15 is set equal to that of the third pressurizing lower roller 17, so that the fabric is kept in a natural state between the two. The image of the required PCM printing is decomposed, and the image of the PCM printing is the same as that of the color printing, to obtain a gray value matrix of the image of the required PCM printing, which is then converted into a PCM voltage control signal matrix.
[0048] The control signals in the PCM voltage control signal matrix are transmitted to the PCM piezoelectric controller of the PCM ink cartridge of each nozzle in the nozzle group 8. When the fabric on which the color printing is completed moves to the position of the required printing, the PCM piezoelectric controller generates a gas pressure of a corresponding size under the control of the received PCM voltage control signal. Under the action of the gas pressure, the PCM slurry ejection hole of the PCM ink cartridge in a closed state ejects the PCM slurry of the PCM ink cartridge, and the amount of the ejected PCM slurry is directly determined by the amount of the generated gas pressure. The PCM slurry then falls to the PCM ejection hole at the bottom of the lower ejection cylinder. When the PCM ejection hole is subjected to the pressure of the falling PCM slurry, the PCM ejection hole ejects the falling PCM slurry at a certain speed, so as to be printed on the fabric directly below the nozzle group 8, thereby completing the PCM printing at one position of the fabric in a natural state. Since the fabric is in a natural elongation, the ejected PCM slurry is uniformly permeated at the color printing pattern of the fabric. The first motor drives the upward connecting member 7 to slide back and forth along the nozzle group running crossbar 3, thereby driving the nozzle group 8 to slide back and forth along the nozzle group running crossbar 3. The continuous PCM printing in the width direction of the fabric is realized by the sliding of the nozzle group 8 along the nozzle group running crossbar 3. The continuous PCM printing in the length direction of the fabric is realized by the continuous winding of the fabric from the fabric feeding roller to the fabric winding roller by the driving of the conveyor belt.
[0049] The fabric on which the PCM printing is completed is in close contact with the sixth PCM curing roller 22 extended from the printing plate 24, and is in close contact with the seventh color curing roller 23 at the same time. The close contact force between the fabric and the sixth PCM curing roller 22 is greater than that between the fabric and the seventh color curing roller 23, thereby causing the fabric to be tensioned under the support of the sixth PCM curing roller 22, so as to cause the fabric to be stretched. The heat generated by the sixth PCM curing roller 22 is directly transmitted to the outer side surface of the fabric through the inner side surface of the stretched fabric, thereby producing a main curing effect on the PCM printing and an auxiliary curing effect on the color printing.
[0050] Then, the fabric in a natural state is in close contact with the seventh color curing roller 23. The heat generated by the seventh color curing roller 23 directly acts on the inner side surface of the fabric, thereby producing a main curing effect on the color printing and an auxiliary curing effect on the PCM printing, so as to realize the precise control of the temperature curve required for the curing of the printed fabric.
[0051] The above detailed description of the embodiments with reference to the drawings is to illustrate the structure, features and effects of the present application. The above description is only the preferred embodiments of the present application, but the present application is not limited to the embodiments shown in the drawings. Any changes or modifications made in accordance with the concept of the present application, or equivalent embodiments with equivalent changes, are still within the scope of the present application.
Claims
1. A PCM intelligent temperature-controlled printing method, characterized in that, An integrated digital inkjet printer is adopted, which includes a printhead assembly and a flat panel assembly. The printhead assembly includes a color inkjet printing and PCM inkjet printing printhead assembly consisting of a printhead support system and a printhead assembly. The printhead assembly is slidably connected to the printhead support system through an upward connector. The printhead assembly consists of printheads including an upper ink cylinder and a lower printing cylinder. The ink cartridges of the color inkjet printer head assembly include red, green and blue ink cartridges. The three are interconnected with the ink stack through ink pipelines with control switches. The air pressure generated by the piezoelectric controller at the top of each ink cartridge controls the ink inside to be ejected from the ink nozzle at the bottom. An ink oscillation mixing device is set in the middle of the lower printing cylinder and a pressure-sensing controlled color printing nozzle is set at the bottom. The ink cartridge of the PCM inkjet printer head assembly includes a PCM ink cartridge, which is interconnected with the PCM paste stack via a PCM paste pipeline with a control switch port. The air pressure generated by the piezoelectric controller at the top of the PCM ink cartridge controls the ejection of the PCM paste from the PCM paste nozzle at the bottom. The bottom of the lower printing cylinder is equipped with a pressure-sensing controlled PCM printing nozzle. The flat panel assembly includes a flat panel support system and a hexagonal printing flat panel supported by the system. A first pressing roller is rotatably mounted in a first arc-shaped groove at the connection between the upper surface and the upper left surface of the printing flat panel. A second pressing roller is rotatably mounted in a second arc-shaped groove in the middle of the upper surface. A first pressing roller is rotatably mounted in a third arc-shaped groove at the connection between the upper surface and the upper right surface. The first, second, and third pressing rollers are gear-driven to each other, and elastic pressing pins are respectively mounted on the first, second, and third pressing rollers. A fourth heating roller is rotatably mounted at the connection between the upper left surface and the lower left surface via a connecting pin. A fifth ironing roller is rotatably mounted in a fifth arc-shaped groove at the connection between the lower left surface and the lower surface. A sixth PCM curing roller is rotatably mounted at the connection between the upper right surface and the lower right surface via a connecting pin. A seventh color curing roller is rotatably mounted in a seventh arc-shaped groove at the connection between the lower right surface and the lower surface. During printing, the fabric on the feed roller is in close contact with the fourth heating roller and maintains a distance from the fifth ironing roller. It is first ironed by the even penetration of the humid and hot airflow from the fifth ironing roller, which rotates naturally due to the outflowing humid and hot airflow, and then dried by the fourth heating roller, which rotates due to the fabric. In color printing, the fabric is stretched between the first and second pressing rollers, and the sprayed ink penetrates the fabric evenly. In PCM printing, the fabric is conveyed at the same speed between the second and third pressing rollers, and the sprayed PCM paste penetrates the color printing pattern on the fabric evenly. Then the fabric is kept in close contact with the sixth PCM curing roller and the seventh color curing roller with decreasing force. The heat generated by the sixth PCM curing roller is directly transferred from the inner side of the stretched fabric to the outer side, resulting in the main curing effect of PCM printing and the auxiliary curing effect of color printing. The heat generated by the seventh color curing roller acts directly on the inner surface of the fabric in its natural state, producing the main curing effect for color printing and the auxiliary curing effect for PCM printing.
2. The PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, The color inkjet printer head assembly is located directly above the printing plate between the first and second pressing rollers, while the PCM inkjet printer head assembly is located directly above the printing plate between the second and third pressing rollers.
3. The PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, The nozzle support system includes an outer nozzle support vertical rod and an inner nozzle support vertical rod. The bottom ends of the outer nozzle support vertical rod and the inner nozzle support vertical rod are fixed to the ground. A nozzle assembly running horizontal rod is fixedly connected between the top ends of the outer nozzle support vertical rod and the inner nozzle support vertical rod. The outward end and the inward end of the nozzle assembly running horizontal rod are fixedly connected to the top ends of the outer nozzle support vertical rod and the inner nozzle support vertical rod, respectively. A printhead assembly is installed at the bottom of the printhead group running crossbar. The printhead assembly includes an upward connector and a printhead group. The upward connector is slidably connected to the bottom of the printhead group running crossbar. The upward connectors of the color inkjet printer head assembly and the PCM inkjet printer head assembly are driven by the first motor to slide back and forth along the printhead group running crossbar. The top of the printhead group is fixedly connected to the bottom of the upward connector. The first motor drives the upward connector to slide back and forth along the printhead group running crossbar.
4. The PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, The ink cartridges of the color inkjet printer head assembly include red ink cartridges, green ink cartridges, and blue ink cartridges, each containing red, green, and blue ink respectively. A first control switch, a second control switch, and a third control switch are respectively installed on the upper part of each ink cartridge. These switches are connected to the red, green, and blue ink lines, respectively. The other ends of the red, green, and blue ink lines are interconnected with the red, green, and blue ink stacks, which are also filled with red, green, and blue ink respectively. The first, second, and third control switches are motion control switches; when the printhead is in motion, all three switches are closed, allowing the red, green, and blue ink lines to flow freely. When the ink supply to the red ink line stops and the printhead is stationary, the first, second, and third control switches are all open, allowing the red, green, and blue ink lines to supply ink until the ink supply is complete. A red piezoelectric controller, a green piezoelectric controller, and a blue piezoelectric controller are respectively installed on the top of the red, green, and blue ink cylinders. These controllers have identical structures. Upon receiving a voltage signal, they generate corresponding air pressure, and red ink nozzles, green ink nozzles, and blue ink nozzles are installed at the bottom of the red, green, and blue ink cylinders, respectively. When the red, green, and blue ink cylinders are closed and subjected to a certain air pressure, the red ink nozzles, green ink nozzles, and blue ink nozzles respectively eject the red ink, green ink, and blue ink from the cylinders. The top of the lower printing cylinder of the color inkjet printer head assembly is open and interconnected with the red ink nozzles, green ink nozzles, and blue ink nozzles at the bottom of the red ink cylinder, green ink cylinder, and blue ink cylinder, respectively. An ink oscillation mixing device is set in the middle of the lower printing cylinder. After the ink is oscillated and mixed, it falls to the bottom of the lower printing cylinder. A color printing nozzle is set at the bottom of the lower printing cylinder. The color printing nozzle is a pressure-sensitive controlled spraying device. When the color printing nozzle is subjected to the pressure of the dripping mixed ink, the color printing nozzle sprays the dripping mixed ink at a certain speed.
5. The PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, The ink cartridge of the PCM inkjet printer head assembly includes a PCM ink cartridge. A fourth control switch is installed at the top of the PCM ink cartridge. This fourth control switch is connected to the PCM ink supply line, the other end of which is connected to a PCM ink stack containing the required PCM ink for printing. The fourth control switch is a motion control switch. When the printhead is in motion, the fourth control switch is closed, stopping the ink supply from the PCM cooling ink supply line. When the printhead is stationary, the fourth control switch... The port is in an open state, allowing the PCM cooling slurry pipeline to supply slurry until it is full; a PCM piezoelectric controller is installed on the top of the PCM ink cartridge. The PCM piezoelectric controller has the same structure as the red, green, and blue piezoelectric controllers. After receiving a voltage signal, the PCM piezoelectric controller generates a corresponding amount of air pressure. A PCM slurry nozzle is installed at the bottom of the PCM ink cartridge. When the PCM ink cartridge is closed and subjected to a certain air pressure, the PCM slurry nozzle sprays the PCM slurry out of the PCM ink cartridge. The top of the lower printing cylinder of the PCM inkjet printer head assembly is open and interconnected with the PCM inkjet nozzle at the bottom of the PCM ink cartridge. A PCM printing nozzle is provided at the bottom of the lower printing cylinder. The PCM printing nozzle is a pressure-sensitive controlled ejection device. When the PCM printing nozzle is subjected to the pressure of the dripping PCM ink, the PCM printing nozzle ejects the dripping PCM ink at a certain speed.
6. The PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, The flat plate support system includes a left outer flat plate support vertical rod, a right outer flat plate support vertical rod, a left inner flat plate support vertical rod, and a right inner flat plate support vertical rod. A printing plate is supported on the flat plate support system. The printing plate has a hexagonal structure and is hollow. It includes an upper plane, a lower plane, a left upper plane, a left lower plane, a right upper plane, and a right lower plane. The upper and lower planes are kept horizontal. The left outer point, right outer point, left inner point, and right inner point of the lower plane of the printing plate are fixedly connected to the top of the left outer flat plate support vertical rod, the right outer flat plate support vertical rod, the left inner flat plate support vertical rod, and the right inner flat plate support vertical rod, respectively.
7. The PCM intelligent temperature-controlled printing method according to claim 6, characterized in that, The left side of the upper surface of the printing plate is connected to the upper side of the upper left surface through a first arc-shaped groove. A first pressing roller is provided in the first arc-shaped groove. The outward end and the inward end of the first pressing roller are respectively connected to the printing plate through bearings. A first pressing upper roller is provided on the first pressing lower roller. A second arc-shaped groove is formed in the middle of the upper surface of the printing plate. A second pressing roller is set in the second arc-shaped groove. The outward end and the inward end of the second pressing roller are respectively connected to the printing plate through bearings. A second pressing upper roller is set on the second pressing lower roller. The right side of the upper surface of the printing plate is connected to the upper side of the upper right surface through a third arc-shaped groove. A third pressing roller is provided in the third arc-shaped groove. The outward end and the inward end of the third pressing roller are respectively connected to the printing plate through bearings. A third pressing upper roller is provided on the third pressing lower roller. The first, second, and third upper pressing rollers have the same structure, including an upper roller shaft and an upper roller sleeve. The upper roller sleeve is fitted onto the upper roller shaft through bearings, and both ends of the upper roller shaft extend out of the upper roller sleeve. The two ends of the upper roller shaft of the first, second, and third upper pressing rollers are respectively connected to the first, second, and third lower pressing rollers through elastic pressing pins. When the elastic pressing pin is pressed down and connected to the corresponding lower pressing roller, the first, second, and third upper pressing rollers press against each other with the first, second, and third lower pressing rollers respectively. When the elastic pressing pin is disconnected from the corresponding lower pressing roller, the first, second, and third upper pressing rollers maintain a certain distance from the first, second, and third lower pressing rollers respectively. The third pressing roller is driven to rotate by the second motor. The second pressing roller and the third pressing roller are connected by a first gear set, and the first pressing roller and the second pressing roller are connected by a second gear set. The rotational linear speeds of the second pressing roller and the third pressing roller are the same and greater than the rotational linear speed of the first pressing roller.
8. The PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, A fourth heating roller is provided at the connection between the lower side of the upper left plane and the upper side of the lower left plane of the printing plate. The fourth heating roller is heated by an electric heating wire. The outward end of the fourth heating roller is connected to the first outer connecting pin bearing, and the inward end of the fourth heating roller is connected to the first inner connecting pin bearing. The first outer connecting pin, the first inner connecting pin and the printing plate are fixedly connected. The lower side of the lower left plane of the printing plate is connected to the left side of the lower plane through a fifth arc-shaped groove. A fifth ironing roller is set in the fifth arc-shaped groove. The outward end and the inward end of the fifth ironing roller are respectively connected to the printing plate through bearings. Ironing holes are opened at equal intervals along the side of the fifth ironing roller. A heating device is set in the fifth ironing roller. The fifth ironing roller is connected to the humidifier through a bearing. A sixth PCM curing roller is provided at the connection between the lower side of the upper right plane and the upper side of the lower right plane of the printing plate. The sixth PCM curing roller is cured by temperature-controllable electric heating. The outward end of the sixth PCM curing roller is connected to the second outer connecting pin bearing, and the inward end of the sixth PCM curing roller is connected to the second inner connecting pin bearing. The second outer connecting pin and the second inner connecting pin are fixedly connected to the printing plate. The lower right side of the printing plate is connected to the right side of the lower right plane through a seventh arc-shaped groove. A seventh color curing roller is set in the seventh arc-shaped groove. The outward end and the inward end of the seventh color curing roller are connected to the printing plate through bearings. The seventh color curing roller is cured by temperature-controllable electric heating. A fabric feeding roller is located on the left side of the lower plane, on which the fabric to be printed is wound. A fabric winding roller is located on the right side of the lower plane, and the fabric winding roller is driven to rotate by a third motor.
9. The PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, The linear speed of the second pressing roller is within 1.1 times that of the first pressing roller.
10. A PCM intelligent temperature-controlled printing method according to claim 1, characterized in that, The fabric is supported by a fourth heating roller extending from the printing plate, ensuring close contact between the two and maintaining a certain distance between the fabric and the fifth ironing roller. The humid and hot airflow emitted from the fifth ironing roller flows out through the ironing holes. Driven by the outflowing humid and hot airflow, the ironing roller rotates naturally. This natural rotation allows the humid and hot airflow to penetrate evenly into the fabric, achieving ironing and finishing. After ironing, the fabric undergoes drying and finishing under the action of the closely attached fourth heating roller. The rotation of the fabric then drives the fourth heating roller to rotate synchronously, achieving a uniform finishing effect on the fabric before printing.