A printing process that combines offset printing and digital printing

Abstract

The present invention belongs to the field of printing technology, specifically a printing technology that integrates offset printing and digital printing, and the printing technology comprises the following steps: a first step: analyzing a predetermined printing pattern and separating a black and white printing part and a color printing part; a second step: performing printing proofing on the predetermined printing pattern, using a digital proofing device to perform pre-press proofing on the digital printing part and an offset printing proofing machine to perform pre-press proofing on the offset printing part, and confirming that the printing effect is consistent with the predetermined printing pattern before formal printing; a third step: using an offset printing machine and a digital printing machine to print, the offset printing machine prints the color part, and after the color part is printed, it is input into a digital printing machine to print the black and white part; a fourth step: after printing is completed, a UV curing machine is used to cure the ink of the color part; through this printing technology, the function of making the color pattern have a glossy effect is achieved in one printing process.

Description

Technical Field

[0001] The present invention relates to the field of printing technology, in particular to a printing technology that integrates offset printing and digital printing. Background Art

[0002] With the progress of society and the development of the times, the cultural industry has been greatly developed. The demand for paper as a carrier of culture has also become increasingly higher. In order to make the patterns printed on the paper more exquisite, color printing technology is now used to make the patterns on the paper have color effects.

[0003] Nowadays, when printing color patterns, color printing machines are mostly used for printing. After printing, dryers are used for drying so that the ink on the paper can solidify quickly to avoid blurring or smearing.

[0004] Existing printing technology cannot make colored patterns glossy when printing them. When printing some special patterns, they need to have a certain glossiness to make the patterns more three-dimensional and eye-catching. In order to achieve this effect, the existing printing process requires additional separate processing of the colored printed parts, which not only reduces the printing efficiency but also causes the printed ink to fall off due to the poor bonding between the printed ink and the gloss paint or gloss ink, thereby reducing the quality of the printed products. Therefore, to address the above problems, a printing process that integrates offset printing and digital printing is proposed. Summary of the Invention

[0005] In order to make up for the shortcomings of the existing technology, the existing printing technology cannot make the colored patterns glossy when printing them. When printing some special patterns, they need to have a certain glossiness to make the patterns more three-dimensional and more eye-catching. In order to achieve this effect, the existing printing process needs to perform additional separate processing on the colored printed parts, which not only reduces the printing efficiency but also causes the printed ink to fall off due to the poor bonding between the printed ink and the gloss paint or gloss ink, thereby reducing the quality of the printed products. The present invention proposes a printing process that integrates offset printing and digital printing.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a printing process that integrates offset printing and digital printing, the printing process comprising the following steps:

[0007] S1: Analyze the pattern to be printed and separate the black and white printing part and the color printing part;

[0008] S2: Print proofing of the scheduled pattern. For digital printing, digital proofing equipment is used for pre-press proofing, and for offset printing, offset proofing machine is used for pre-press proofing. After confirming that the printing effect is consistent with the scheduled pattern, formal printing is carried out;

[0009] S3: Printing is performed using an offset printing press and a digital printing press. The offset printing press prints the color part, and after the color part is printed, it is input into the digital printing press to print the black and white part.

[0010] S4: After printing is completed, a UV curing machine is used to cure the ink of the colored part.

[0011] Preferably, the ink used by the offset printing press in S3 when printing the color part is laser-compatible ink.

[0012] Preferably, the UV curing machine in S3 includes a curing machine main body, an adjustable supporting mechanism is provided on the left side of the curing machine main body, two groups of the adjustable supporting mechanisms are provided, and the two groups of adjustable supporting mechanisms are symmetrically designed, the adjustable supporting mechanism includes a fixed bracket, the fixed bracket is provided on the left side of the curing machine main body, a movable bracket is provided on the left side of the fixed bracket, a length adjustment component is provided between the fixed bracket and the movable bracket, and a position adjustment component is provided on the side of the fixed bracket close to the curing machine main body.

[0013] Preferably, the length adjustment assembly includes a main extension frame, which is fixedly connected to the right side of the movable bracket, and the main extension frame is inserted into the inside of the storage slot, the storage slot is opened on the left side of the fixed bracket, and a sleeve groove is opened on the right side of the main extension frame, and a first screw sleeve is fixedly connected to the inner wall of the right side of the sleeve groove, the first screw sleeve is threadedly connected to the outside of the first screw rod, the left side of the first screw rod is sleeved inside the sleeve groove, and the right side of the first screw rod extends to the inside of the first transmission cavity, the first transmission cavity is opened inside the right side of the fixed bracket, and a passive gear is fixedly connected to the right side of the first screw rod, the passive gear is meshed with the active gear, and the bottom end of the active gear is fixedly connected to a connecting shaft.

[0014] Preferably, the bottom end of the connecting shaft passes through the fixed bracket and extends to the outside of the fixed bracket, and the bottom end of the connecting shaft is fixedly connected to a knob, and the outside of the knob is glued with an anti-slip sleeve, the anti-slip sleeve is made of rubber, and the outside of the anti-slip sleeve is provided with anti-slip grooves.

[0015] Preferably, the outer side of the connecting shaft is provided with a threaded sleeve, the top of the threaded sleeve is fixedly connected to the right side of the bottom end of the fixed bracket, and the outer side of the threaded sleeve is threadedly connected with a nut.

[0016] Preferably, the sides of the fixed brackets that are close to each other are fixedly connected to a connecting frame, a sliding groove is provided at the top of the connecting frame, a slider is slidably connected inside the sliding groove, the slider is fixedly connected to the right side of the bottom end of the auxiliary extension frame, the left side of the auxiliary extension frame is fixedly connected to the right side of the driven frame, the driven frame is fixedly connected to the side of the two groups of movable brackets that are close to each other, a movable stopper is provided on the left side of the driven frame, and a movable component is provided between the driven frame and the movable stopper.

[0017] Preferably, the movable component includes a sliding sleeve, which is fixedly connected to the left side of the driven frame, the sliding sleeve is arranged on the outside of the sliding rod, the sliding rod is fixedly connected to the inside of the sliding groove, and a return spring is wound around the outside of the sliding rod, the sliding groove is opened on the right side of the movable stopper, the top of the return spring is fixedly connected to the top of the inner wall of the sliding groove, and the bottom end of the return spring is fixedly connected to the top of the sliding sleeve.

[0018] Preferably, the fixed bracket is fixedly connected to a second screw sleeve on one side close to the curing machine body, the second screw sleeve is threadedly connected to the outside of the second screw, one side of the second screw is rotatably connected to the inside of the moving groove, and the other side of the second screw extends to the inside of the second transmission cavity, the thread directions of the two groups of second screws are the same, the moving groove is opened on the left side of the curing machine body, the second transmission cavity is opened at a position near the center of the left side of the curing machine body, the second screw extending to the inside of the second transmission cavity is fixedly connected to a first bevel gear on one side, and the first bevel gear is meshed with the second bevel gear. The left side of the second bevel gear is fixedly connected to a transmission shaft, the outer side of the transmission shaft is fixedly connected to a spur gear, one side of the spur gear is engaged with a latching tooth, the end of the latching tooth away from the spur gear is sleeved inside the movable groove, a connecting spring is provided inside the movable groove, the end of the connecting spring close to the latching tooth is fixedly connected to the latching tooth, and the end of the connecting spring away from the latching tooth is fixedly connected to the inner wall of the movable groove, the left side of the latching tooth away from the spur gear end is fixedly connected with a pull plate, the bottom end of the inner wall of the movable groove is glued with a clamping block, the clamping block is made of rubber, and the clamping block is engaged with the clamping slot, and the clamping slot is opened at the bottom end of the clamping tooth.

[0019] Preferably, the side of the transmission shaft away from the second bevel gear passes through the curing machine body and extends to the outside of the curing machine body, and the side of the transmission shaft away from the second bevel gear is fixedly connected to a rotating knob, and a friction sleeve is glued to the outside of the rotating knob. The friction sleeve is made of rubber, and a pattern is provided on the outside of the friction sleeve.

[0020] The present invention is beneficial in that:

[0021] 1. The present invention, through this printing process, achieves the function of giving a glossy effect to colored patterns in a single printing process. The glossy ink has a better bond with the paper than existing printing processes and is less likely to shed. This solves the problem that existing printing technologies cannot achieve glossy colored patterns when printing colored patterns. When printing certain special patterns, a certain glossiness is required to make the patterns more three-dimensional and eye-catching. To achieve this effect, existing printing processes require additional processing of the colored printed parts, which not only reduces printing efficiency but also causes sheds due to the poor bond between the printed ink and the glossy lacquer or glossy ink, thereby reducing the quality of the printed products.

[0022] 2. The present invention realizes the function of conveniently collecting printed materials of different specifications through the structural design of the adjustable supporting mechanism, which solves the problem that the existing UV curing machine does not have the function of collecting paper, and requires manual collection of the cured paper one by one. In the process of manual collection of paper one by one, it is easy to cause wrinkles or damage to the paper, which in turn affects the subsequent binding of the printed materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the method flow of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the UV curing machine of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustable supporting mechanism of the present invention;

[0027] Figure 4 It is a schematic diagram of the front cross-sectional three-dimensional structure of the adjustable supporting mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram;

[0029] Figure 6 It is a schematic diagram of a frontal three-dimensional cross-sectional structure of the adjustable supporting mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6The enlarged structural diagram at B in the middle;

[0031] Figure 8 It is a schematic diagram of a first partial three-dimensional cross-sectional structure of the present invention;

[0032] Figure 9 For the present invention Figure 8 The enlarged structural diagram at C in the middle;

[0033] Figure 10 is a schematic diagram of a second partial three-dimensional cross-sectional structure of the present invention;

[0034] Figure 11 For the present invention Figure 10 The enlarged structural diagram at D in the middle;

[0035] Figure 12 It is a schematic diagram of a first partial three-dimensional structure of the present invention;

[0036] Figure 13 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0037] In the figure: 1. Curing machine body; 21. Fixed bracket; 22. Movable bracket; 23. Main extension frame; 24. Storage slot; 25. Sleeve slot; 26. First screw sleeve; 27. First screw rod; 28. First transmission chamber; 29. ​​Passive gear; 31. Driving gear; 32. Connecting shaft; 33. Knob; 34. Anti-slip sleeve; 35. Threaded sleeve; 36. Nut; 37. Connecting frame; 38. Slide slot; 39. Slider; 41. Secondary extension frame; 42. Driven frame ; 43. Movable stopper; 44. Sliding sleeve; 45. Sliding rod; 46. Sliding groove; 47. Reset spring; 48. Second screw sleeve; 49. Second screw rod; 51. Movable groove; 52. Second transmission chamber; 53. First bevel gear; 54. Second bevel gear; 55. Transmission shaft; 56. Flat gear; 57. Rotating knob; 58. Friction sleeve; 59. Clamping tooth; 61. Movable groove; 62. Connecting spring; 63. Pull plate; 64. Clamping block; 65. Clamping groove. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1

[0040] See also Figures 1-13 As shown, a printing process that combines offset printing and digital printing includes the following steps:

[0041] S1: Analyze the pattern to be printed and separate the black and white printing part and the color printing part;

[0042] S2: Print proofing of the scheduled pattern. For digital printing, digital proofing equipment is used for pre-press proofing, and for offset printing, offset proofing machine is used for pre-press proofing. After confirming that the printing effect is consistent with the scheduled pattern, formal printing is carried out;

[0043] S3: Printing is performed using an offset printing press and a digital printing press. The offset printing press prints the color part, and after the color part is printed, it is input into the digital printing press to print the black and white part.

[0044] S4: After printing is completed, use a UV curing machine to cure the ink of the colored part;

[0045] Furthermore, the ink used by the offset printing press in S3 when printing the color part is a laser-compatible ink;

[0046] During operation, this printing process can achieve the function of making colored patterns have a glossy effect in one printing process, and the bonding between the glossy ink and the paper is better than that of the existing printing process and is not easy to fall off. It solves the problem that the existing printing technology cannot make the colored patterns glossy when printing colored patterns. When printing some special patterns, they need to have a certain glossiness to make the patterns more three-dimensional and more eye-catching. In order to achieve this effect, the existing printing process needs to perform additional separate processing on the colored printed part, which not only reduces the printing efficiency but also causes falling off due to the poor bonding between the printed ink and the glossy paint or glossy ink, thereby reducing the quality of the printed products.

[0047] Furthermore, the UV curing machine in S3 includes a curing machine body 1, an adjustable supporting mechanism is provided on the left side of the curing machine body 1, two groups of the adjustable supporting mechanisms are provided, and the two groups of the adjustable supporting mechanisms are symmetrically designed, the adjustable supporting mechanism includes a fixed bracket 21, the fixed bracket 21 is provided on the left side of the curing machine body 1, a movable bracket 22 is provided on the left side of the fixed bracket 21, a length adjustment component is provided between the fixed bracket 21 and the movable bracket 22, and a position adjustment component is provided on the side of the fixed bracket 21 close to the curing machine body 1;

[0048] During operation, when the curing machine body 1 is curing the glossy ink on the paper, the paper moves with the rotation of the conveyor belt on the curing machine body 1, and the paper enters from one side and moves out from the other side and falls to the top of the fixed bracket 21, the movable bracket 22, the auxiliary extension frame 41 and the driven frame 42 under the action of gravity. Because the fixed bracket 21, the movable bracket 22, the auxiliary extension frame 41 and the driven frame 42 are designed to be inclined, the bottom end of the paper will slide toward the fixed bracket 21 under the action of gravity, and stop moving when one end of the paper abuts against the connecting frame 37. At this time, the paper stops on the auxiliary extension frame 41 and the driven frame 42 and falls between the movable stopper 43 and the connecting frame 37. The two ends of the paper are blocked by the movable stopper 43 and the connecting frame 37, so that the paper is kept in this area for storage.

[0049] Furthermore, the length adjustment assembly includes a main extension frame 23, which is fixedly connected to the right side of the movable bracket 22, and the main extension frame 23 is inserted into the inside of the receiving slot 24, and the receiving slot 24 is opened on the left side of the fixed bracket 21. A sleeve groove 25 is opened on the right side of the main extension frame 23, and a first screw sleeve 26 is fixedly connected to the inner wall of the right side of the sleeve groove 25. The first screw sleeve 26 is threadedly connected to the outside of the first screw rod 27, and the left side of the first screw rod 27 is sleeved inside the sleeve groove 25. The right side of the first screw rod 27 extends to the inside of the first transmission cavity 28, and the first transmission cavity 28 is opened inside the right side of the fixed bracket 21. A passive gear 29 is fixedly connected to the right side of the first screw rod 27, and the passive gear 29 is meshed with the active gear 31. The bottom end of the active gear 31 is fixedly connected to the connecting shaft 32;

[0050] During operation, the existing UV curing machine does not have the function of collecting paper, and it is necessary to manually collect the cured paper one by one. In the process of manually collecting the paper one by one, it is easy to cause wrinkles or damage to the paper, which in turn affects the subsequent binding of the printed matter. After the limit on the overall length of the adjustable supporting mechanism is released, the rotating knob 33 drives the active gear 31 to rotate through the connecting shaft 32, so that the passive gear 29 engaged with the active gear 31 rotates synchronously, so that the passive gear 29 drives the fixedly connected first screw 27 to rotate, and the rotation of the first screw 27 drives the first screw sleeve 26 threadedly connected to its outer side to move, and then the first screw sleeve 26 drives the main extension frame 23 to move synchronously. When the main extension frame 23 moves, it drives the movable bracket 22 to move synchronously, thereby achieving the effect of limiting the overall length of the adjustable supporting mechanism.

[0051] Furthermore, the bottom end of the connecting shaft 32 passes through the fixing bracket 21 and extends to the outside of the fixing bracket 21. The bottom end of the connecting shaft 32 is fixedly connected to a knob 33. The outside of the knob 33 is glued with an anti-slip cover 34. The anti-slip cover 34 is made of rubber and has anti-slip grooves on the outside.

[0052] During operation, the knob 33 facilitates the rotation of the connecting shaft 32 , and the anti-slip sleeve 34 made of rubber increases the friction force, thereby preventing the knob 33 from slipping due to too little friction when being rotated.

[0053] Furthermore, a threaded sleeve 35 is provided on the outer side of the connecting shaft 32, the top of the threaded sleeve 35 is fixedly connected to the right side of the bottom end of the fixing bracket 21, and a nut 36 is threadedly connected to the outer side of the threaded sleeve 35;

[0054] During operation, when the overall length of the adjustable supporting mechanism needs to be adjusted to match papers of different lengths, first turn the nut 36 to loosen the nut 36, so that the inner wall of the threaded sleeve 35 is released from the state of close fit with the outer side of the connecting shaft 32. At this time, the friction between the inner wall of the threaded sleeve 35 and the outer side of the connecting shaft 32 disappears, and the limiting effect on the connecting shaft 32 is released. At this time, the overall length of the adjustable supporting mechanism can be adjusted by turning the knob 33. After the overall length of the adjustable supporting mechanism is adjusted to the right position, the nut 36 is tightened again to make the inner wall of the threaded sleeve 35 fit closely with the outer side of the connecting shaft 32, and the rotation of the connecting shaft 32 is limited by friction, thereby fixing the length of the adjustable supporting mechanism and preventing the knob 33 from being rotated by mistake and causing the overall length of the adjustable supporting mechanism to change.

[0055] Furthermore, the sides of the fixed brackets 21 that are close to each other are fixedly connected to a connecting frame 37, a slide groove 38 is provided at the top of the connecting frame 37, a slider 39 is slidably connected inside the slide groove 38, the slider 39 is fixedly connected to the right side of the bottom end of the auxiliary extension frame 41, the left side of the auxiliary extension frame 41 is fixedly connected to the right side of the driven frame 42, the driven frame 42 is fixedly connected to the side of the two groups of movable brackets 22 that are close to each other, a movable stopper 43 is provided on the left side of the driven frame 42, and a movable component is provided between the driven frame 42 and the movable stopper 43;

[0056] During operation, when the movable bracket 22 moves, it drives the driven frame 42 fixedly connected to it to move synchronously. When the driven frame 42 moves, it drives the auxiliary extension frame 41 to move synchronously, so that the auxiliary extension frame 41 drives the fixedly connected slider 39 to slide inside the slide groove 38, and the movable bracket 22 is extended or shortened synchronously. At the same time, the combination of the slide groove 38 and the slider 39 plays the effect of limiting the extension length of the entire adjustable supporting mechanism. When the slider 39 moves to the limit inside the slide groove 38, the overall length of the adjustable supporting mechanism is also extended to the limit. At this time, the slide groove 38 cannot move anymore, and the adjustable supporting mechanism as a whole cannot continue to extend, thereby avoiding the situation where the main extension frame 23 moves excessively and falls out from the inside of the storage slot 24.

[0057] Furthermore, the movable assembly includes a sliding sleeve 44, which is fixedly connected to the left side of the driven frame 42. The sliding sleeve 44 is sleeved on the outside of a sliding rod 45, and the sliding rod 45 is fixedly connected to the inside of a sliding groove 46. A return spring 47 is wound around the outside of the sliding rod 45. The sliding groove 46 is opened on the right side of the movable stopper 43. The top end of the return spring 47 is fixedly connected to the top end of the inner wall of the sliding groove 46, and the bottom end of the return spring 47 is fixedly connected to the top end of the sliding sleeve 44.

[0058] During operation, when the collected paper is to be removed, the movable stopper 43 is first pressed downward to move the movable stopper 43 downward. The return spring 47 is squeezed and elastically deformed. At this time, the movable stopper 43 releases the obstruction to the paper, and the paper can be easily removed from the top of the driven frame 42 and the auxiliary extension frame 41. After the paper is removed, the pressing of the movable stopper 43 is stopped. At this time, the movable stopper 43 returns to its original position under the action of the restoring force of the return spring 47.

[0059] Furthermore, the fixed bracket 21 is fixedly connected to a second screw sleeve 48 on one side close to the curing machine body 1. The second screw sleeve 48 is threadedly connected to the outside of the second screw 49. One side of the second screw 49 is rotatably connected to the inside of the moving groove 51, and the other side of the second screw 49 extends to the inside of the second transmission chamber 52. The thread directions of the two groups of second screws 49 are the same. The moving groove 51 is opened on the left side of the curing machine body 1, and the second transmission chamber 52 is opened at a position near the center of the left side of the curing machine body 1. The second screw 49 extending to the side inside the second transmission chamber 52 is fixedly connected to a first bevel gear 53, and the first bevel gear 53 is meshed with the second bevel gear 54. The second bevel gear 5 4 is fixedly connected to a transmission shaft 55 on the left side, and a spur gear 56 is fixedly connected to the outside of the transmission shaft 55. A tooth 59 is engaged with one side of the spur gear 56. The end of the tooth 59 away from the spur gear 56 is sleeved inside the movable groove 61. A connecting spring 62 is provided inside the movable groove 61. The end of the connecting spring 62 close to the tooth 59 is fixedly connected to the tooth 59, and the end of the connecting spring 62 away from the tooth 59 is fixedly connected to the inner wall of the movable groove 61. A pull plate 63 is fixedly connected to the left side of the end of the tooth 59 away from the spur gear 56. A block 64 is glued to the bottom end of the inner wall of the movable groove 61. The block 64 is made of rubber and engages with the slot 65. The slot 65 is provided at the bottom end of the tooth 59.

[0060] During operation, when the width of the paper is wider, the position of the adjustable supporting mechanism as a whole can be adjusted to match the paper. When the position of the adjustable supporting mechanism as a whole is to be adjusted, the pull plate 63 is first pulled to drive the latch 59 to move toward the inside of the movable groove 61 and squeeze the connecting spring 62, causing the connecting spring 62 to produce elastic deformation. When the latch 59 moves toward the inside of the movable groove 61, its bottom end squeezes the rubber block 64 glued to the inner wall of the movable groove 61, causing the block 64 to produce elastic deformation. When the latch 59 moves toward the inside of the movable groove 61, the bottom end squeezes the rubber block 64 glued to the inner wall of the movable groove 61, causing the block 64 to produce elastic deformation. When the locking tooth 59 is fully inserted into the movable groove 61, the locking tooth 59 is released from the engagement with the spur gear 56. At this time, the limiting effect on the spur gear 56 and the transmission shaft 55 is released and they can be rotated. At this time, the rotation of the transmission shaft 55 can adjust the position of the entire adjustable supporting mechanism. The section can be matched with papers of different widths. After the adjustable supporting mechanism is adjusted to the right position, the pulling plate 63 is slightly pulled to make the pulling plate 63 drive the latching tooth 59 to move, so that the clamping block 64 is squeezed and elastically deformed to release the state of being engaged with the clamping groove 65. At this time, the limiting effect of the latching tooth 59 is released, and under the action of the restoring force of the connecting spring 62, it returns to its original position and engages with the flat gear 56, which has the effect of limiting the rotation of the flat gear 56 and the transmission shaft 55, avoiding the rotation of the transmission shaft 55 caused by accidental touch, which causes the adjustable supporting mechanism to move as a whole. When the locking of the flat gear 56 and After the rotation of the transmission shaft 55 is limited, the rotating knob 57 drives the second bevel gear 54 to rotate synchronously through the transmission shaft 55. The rotation of the second bevel gear 54 drives the two sets of first bevel gears 53 to rotate synchronously, and then the first bevel gear 53 drives the second screw 49 to rotate. The rotation of the second screw 49 drives the threaded second screw sleeve 48 to move. The movement of the second screw sleeve 48 drives the fixedly connected fixed bracket 21 to move, which has the effect of adjusting the position of the entire adjustable supporting mechanism, so that the entire adjustable supporting mechanism can be matched with papers of different widths.

[0061] Furthermore, the side of the transmission shaft 55 away from the second bevel gear 54 passes through the curing machine body 1 and extends to the outside of the curing machine body 1, and the side of the transmission shaft 55 away from the second bevel gear 54 is fixedly connected to a rotation button 57, and the outer side of the rotation button 57 is glued with a friction sleeve 58, and the friction sleeve 58 is made of rubber and has a pattern on the outer side of the friction sleeve 58;

[0062] During operation, the friction sleeve 58 made of rubber and the patterns on the outer side of the friction sleeve 58 increase the friction force, thereby preventing the friction sleeve 58 from slipping during rotation due to too little friction between the friction sleeve 58 and the finger.

[0063] Working principle: When the curing machine body 1 is curing the glossy ink on the paper, the paper moves with the rotation of the conveyor belt on the curing machine body 1, and the paper enters from one side and moves out from the other side and falls to the top of the fixed bracket 21, the movable bracket 22, the auxiliary extension frame 41 and the driven frame 42 under the action of gravity. Because the fixed bracket 21, the movable bracket 22, the auxiliary extension frame 41 and the driven frame 42 are designed to be inclined, the bottom end of the paper will slide toward the fixed bracket 21 under the action of gravity, and stop moving when one end of the paper abuts against the connecting frame 37. At this time, the paper stops on the auxiliary extension frame 41 and the driven frame 42 and falls between the movable stopper 43 and the connecting frame 37. The two ends of the paper are blocked by the movable stopper 43 and the connecting frame 37, so that the paper remains in this area for storage.

[0064] When the overall length of the adjustable supporting mechanism is to be adjusted to match papers of different lengths, the nut 36 is first turned to loosen the nut 36 so that the inner wall of the threaded sleeve 35 is released from the state of close fit with the outer side of the connecting shaft 32. At this time, the friction between the inner wall of the threaded sleeve 35 and the outer side of the connecting shaft 32 disappears, and the limiting effect on the connecting shaft 32 is released. At this time, the overall length of the adjustable supporting mechanism can be adjusted by turning the knob 33. After the overall length of the adjustable supporting mechanism is adjusted to the right position, the nut 36 is tightened again to make the inner wall of the threaded sleeve 35 fit closely with the outer side of the connecting shaft 32. The rotation of the connecting shaft 32 is limited by friction, and the length of the adjustable supporting mechanism is fixed to prevent the knob 33 from being turned accidentally and causing the overall length of the adjustable supporting mechanism to change.

[0065] When the limit on the overall length of the adjustable supporting mechanism is released, the rotating knob 33 drives the driving gear 31 to rotate through the connecting shaft 32, so that the passive gear 29 engaged with the driving gear 31 rotates synchronously, and the passive gear 29 drives the fixedly connected first screw 27 to rotate. The rotation of the first screw 27 drives the first screw sleeve 26 threadedly connected to its outer side to move, and then the first screw sleeve 26 drives the main extension frame 23 to move synchronously. When the main extension frame 23 moves, it drives the movable bracket 22 to move synchronously, thereby limiting the overall length of the adjustable supporting mechanism.

[0066] When the movable bracket 22 moves, it drives the driven frame 42 fixedly connected to it to move synchronously. When the driven frame 42 moves, it drives the auxiliary extension frame 41 to move synchronously, so that the auxiliary extension frame 41 drives the fixedly connected slider 39 to slide inside the slide groove 38, and the movable bracket 22 is extended or shortened synchronously. At the same time, the combination of the slide groove 38 and the slider 39 plays the effect of limiting the extension length of the entire adjustable supporting mechanism. When the slider 39 moves to the limit inside the slide groove 38, the overall length of the adjustable supporting mechanism is also extended to the limit. At this time, the slide groove 38 cannot move anymore, and the adjustable supporting mechanism as a whole cannot continue to extend, thereby avoiding the situation where the main extension frame 23 moves excessively and escapes from the inside of the storage slot 24.

[0067] When the width of the paper is wider, the position of the adjustable supporting mechanism can be adjusted to match the paper. When the position of the adjustable supporting mechanism is to be adjusted, the pull plate 63 is first pulled to drive the latch tooth 59 to move toward the inside of the movable groove 61 and squeeze the connecting spring 62, causing the connecting spring 62 to produce elastic deformation. When the latch tooth 59 moves toward the inside of the movable groove 61, its bottom end squeezes the rubber block 64 glued to the inner wall of the movable groove 61, causing the block 64 to produce elastic deformation. When the latch tooth 59 moves to the inside of the movable groove 61 to the limit, the squeezing force of the bottom end of the latch tooth 59 on the block 64 disappears. At this time, the block 64 returns to its original state under the action of its own restoring force and engages with the slot 65, which limits the latch tooth 59 and prevents the latch tooth 59 from automatically returning to its original position and engaging with the flat tooth under the action of the restoring force of the connecting spring 62. When the wheel 56 is engaged, when the tooth 59 is fully entered into the movable groove 61, the tooth 59 is released from the engagement with the spur gear 56, and the limiting effect on the spur gear 56 and the transmission shaft 55 is released and can be rotated. At this time, the transmission shaft 55 can be rotated to adjust the position of the entire adjustable supporting mechanism to match papers of different widths. After the adjustable supporting mechanism is adjusted to the right position, the pull plate 63 is slightly pulled to cause the pull plate 63 to drive the tooth 59 to move, so that the card block 64 is squeezed and elastically deformed to release the engagement with the slot 65. At this time, the limiting effect on the tooth 59 is released, and under the action of the restoring force of the connecting spring 62, it returns to its original position and engages with the spur gear 56, which has the effect of limiting the rotation of the spur gear 56 and the transmission shaft 55, avoiding the rotation of the transmission shaft 55 caused by accidental touch and causing the adjustable supporting mechanism to move as a whole.

[0068] When the rotation limit of the flat gear 56 and the transmission shaft 55 is released, the rotation button 57 drives the second bevel gear 54 to rotate synchronously through the transmission shaft 55. The rotation of the second bevel gear 54 drives the two sets of first bevel gears 53 to rotate synchronously, and then the first bevel gear 53 drives the second screw 49 to rotate. The rotation of the second screw 49 drives the threaded second screw sleeve 48 to move. The movement of the second screw sleeve 48 drives the fixedly connected fixed bracket 21 to move, which has the effect of adjusting the position of the entire adjustable supporting mechanism, so that the entire adjustable supporting mechanism can be matched with papers of different widths.

[0069] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A printing process that combines offset printing and digital printing, characterized by: The printing process includes the following steps: S1: Analyze the pattern to be printed and separate the black and white printing part and the color printing part; S2: Print proofing of the scheduled pattern. For digital printing, digital proofing equipment is used for pre-press proofing, and for offset printing, offset proofing machine is used for pre-press proofing. After confirming that the printing effect is consistent with the scheduled pattern, formal printing is carried out; S3: Printing is performed using an offset printing press and a digital printing press. The offset printing press prints the color part, and after the color part is printed, it is input into the digital printing press to print the black and white part. S4: After printing is completed, use a UV curing machine to cure the ink of the colored part; The UV curing machine in S4 comprises a curing machine body (1), an adjustable supporting mechanism is provided on the left side of the curing machine body (1), two groups of the adjustable supporting mechanisms are provided, and the two groups of the adjustable supporting mechanisms are symmetrically designed, the adjustable supporting mechanism comprises a fixed bracket (21), the fixed bracket (21) is provided on the left side of the curing machine body (1), a movable bracket (22) is provided on the left side of the fixed bracket (21), a length adjustment component is provided between the fixed bracket (21) and the movable bracket (22), and a position adjustment component is provided on the side of the fixed bracket (21) close to the curing machine body (1); The length adjustment assembly includes a main extension frame (23), the main extension frame (23) is fixedly connected to the right side of the movable bracket (22), and the main extension frame (23) is inserted into the inside of the receiving slot (24), the receiving slot (24) is opened on the left side of the fixed bracket (21), the right side of the main extension frame (23) is opened with a sleeve slot (25), the inner wall of the right side of the sleeve slot (25) is fixedly connected with a first screw sleeve (26), the first screw sleeve (26) is threadedly connected to the outside of the first screw rod (27), the left side of the first screw rod (27) is sleeved inside the sleeve slot (25), and the right side of the first screw rod (27) extends to the inside of a first transmission chamber (28), the first transmission chamber (28) is opened inside the right side of the fixed bracket (21), the right side of the first screw rod (27) is fixedly connected with a passive gear (29), the passive gear (29) is meshed with a driving gear (31), and the bottom end of the driving gear (31) is fixedly connected with a connecting shaft (32).

2. The printing process combining offset printing and digital printing according to claim 1, characterized in that: The ink used by the offset printing press in S3 when printing the color part is laser-compatible ink.

3. The printing process combining offset printing and digital printing according to claim 1, characterized in that: The bottom end of the connecting shaft (32) passes through the fixed bracket (21) and extends to the outside of the fixed bracket (21), and the bottom end of the connecting shaft (32) is fixedly connected to a knob (33), and an anti-slip sleeve (34) is glued to the outside of the knob (33). The anti-slip sleeve (34) is made of rubber, and the outside of the anti-slip sleeve (34) is provided with anti-slip grooves.

4. The printing process combining offset printing and digital printing according to claim 3, characterized in that: The outer side of the connecting shaft (32) is provided with a threaded sleeve (35), the top end of the threaded sleeve (35) is fixedly connected to the right side of the bottom end of the fixed bracket (21), and the outer side of the threaded sleeve (35) is threadedly connected to a nut (36).

5. The printing process combining offset printing and digital printing according to claim 4, characterized in that: The sides of the fixed brackets (21) that are close to each other are fixedly connected to a connecting frame (37), a sliding groove (38) is provided at the top of the connecting frame (37), a slider (39) is slidably connected inside the sliding groove (38), the slider (39) is fixedly connected to the right side of the bottom end of the auxiliary extension frame (41), the left side of the auxiliary extension frame (41) is fixedly connected to the right side of the driven frame (42), the driven frame (42) is fixedly connected to the side of the two groups of movable brackets (22) that are close to each other, a movable stopper (43) is provided on the left side of the driven frame (42), and a movable component is provided between the driven frame (42) and the movable stopper (43).

6. The printing process combining offset printing and digital printing according to claim 5, characterized in that: The movable component includes a sliding sleeve (44), the sliding sleeve (44) is fixedly connected to the left side of the driven frame (42), the sliding sleeve (44) is sleeved on the outside of the sliding rod (45), the sliding rod (45) is fixedly connected to the inside of the sliding groove (46), and a return spring (47) is wound around the outside of the sliding rod (45), the sliding groove (46) is opened on the right side of the movable block (43), the top end of the return spring (47) is fixedly connected to the top end of the inner wall of the sliding groove (46), and the bottom end of the return spring (47) is fixedly connected to the top end of the sliding sleeve (44).

7. The printing process combining offset printing and digital printing according to claim 6, characterized in that: The fixed bracket (21) is fixedly connected to a second screw sleeve (48) on one side close to the curing machine body (1). The second screw sleeve (48) is threadedly connected to the outside of the second screw rod (49). One side of the second screw rod (49) is rotatably connected to the inside of the movable groove (51), and the other side of the second screw rod (49) extends to the inside of the second transmission chamber (52). The thread directions of the two sets of the second screw rods (49) are the same. The movable groove (51) is opened on the left side of the curing machine body (1). The second transmission chamber (52) is opened at a position near the center of the left side of the curing machine body (1). The second screw rod (49) is fixedly connected to a first bevel gear (53) on one side extending to the inside of the second transmission chamber (52). The first bevel gear (53) is meshed with the second bevel gear (54). The left side of the second bevel gear (54) is fixedly connected to the second bevel gear (54). A transmission shaft (55) is provided, wherein the outer side of the transmission shaft (55) is fixedly connected to a flat gear (56), and a latching tooth (59) is engaged with one side of the flat gear (56), and the end of the latching tooth (59) away from the flat gear (56) is sleeved inside the movable groove (61), and a connecting spring (62) is provided inside the movable groove (61), and the end of the connecting spring (62) close to the latching tooth (59) is fixedly connected to the latching tooth (59), and the end of the connecting spring (62) away from the latching tooth (59) is fixedly connected to the inner wall of the movable groove (61), and the left side of the end of the latching tooth (59) away from the flat gear (56) is fixedly connected to a pull plate (63), and a clamping block (64) is glued to the bottom end of the inner wall of the movable groove (61), and the clamping block (64) is made of rubber and is engaged with the clamping groove (65), and the clamping groove (65) is opened at the bottom end of the latching tooth (59).

8. The printing process combining offset printing and digital printing according to claim 7, characterized in that: The side of the transmission shaft (55) away from the second bevel gear (54) passes through the curing machine body (1) and extends to the outside of the curing machine body (1), and the side of the transmission shaft (55) away from the second bevel gear (54) is fixedly connected to a rotating button (57), and a friction sleeve (58) is glued to the outside of the rotating button (57). The friction sleeve (58) is made of rubber, and the outside of the friction sleeve (58) is provided with a pattern.

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