Color printing method and color printing device for color box production

Abstract

The invention discloses a color printing method and a color printing device for color box production, and relates to the field of color printing. During color printing, the limiting and correcting mechanism is used for correcting and straightening conveyed articles to be subjected to color printing, and guiding and limiting the straightened articles, so that the articles can be straightened to pass through the position below the color printing machine, the color printing effect of the color printing machine on the articles is improved, meanwhile, the rolling mechanism is used for rolling and limiting the conveyed articles in the color printing process, and the color printing efficiency is improved. By means of rolling, the flatness of the articles can be improved, the stability of the articles placed on the conveying line can be improved, the articles are prevented from moving in the color printing process, the color printing effect on the articles can be further improved, and the rolling mechanism rotates at the same linear speed as the conveying line. Therefore, the rolling mechanism and the conveying line are matched to convey the articles to be subjected to color printing, and the conveying stability of the articles subjected to color printing is improved.

Description

Technical Field

[0001] The invention belongs to the field of color printing, and in particular, relates to a color printing method and a color printing device for color box production. Background Art

[0002] Color printing is a printing technology that reproduces color images by mixing multiple color inks. Among them, carton color printing refers to color printing on the surface of carton, which is widely used in the packaging industry. Through color printing, carton not only has the function of protecting goods, but also can enhance the appearance and brand image of products.

[0003] In the prior art, when batch color printing is performed on cartons, the cartons need to be continuously conveyed toward a color printing machine through a conveyor line for continuous color printing of the cartons. However, the cartons are easily displaced when placed on the conveyor line and during transportation, thereby affecting the color printing effect of the cartons. Summary of the invention

[0004] In view of the problems in the related art, the present invention provides a color printing method and a color printing device for color box production to overcome the above technical problems existing in the existing related art.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a color printing method, and the specific steps are as follows: Place the items to be printed on the conveyor line, and transport them toward the color printer through the conveyor line; The position limiting and deviation correcting mechanism is used to correct and straighten the objects to be printed during transportation, and the corrected objects are guided and limited; The roller mechanism is then used to limit the position of the items to be printed during transportation. At the same time, the roller mechanism rotates at the same linear speed as the conveyor line, so that the roller mechanism and the conveyor line cooperate to transport the items to be printed until the items move through the color printing machine and the color printing process is completed.

[0006] Furthermore, the present invention also discloses a color printing device for color box production, comprising a conveyor line and a color printer installed above the conveyor line, wherein the conveyor line is used to move and convey the color boxes to be printed toward the color printer, and a position limiting deviation correction mechanism is also installed on the conveyor line, wherein the position limiting deviation correction mechanism comprises a spacing adjustment component and two groups of guide limiters, wherein the two groups of guide limiters are symmetrically distributed on both sides above the conveyor line, and are used to correct and straighten the color boxes being conveyed, and to guide and limit the straightened color boxes, wherein the spacing adjustment component can drive the two groups of guide limiters to move toward each other or move in the opposite direction to open, so as to adjust the spacing between the two groups of guide limiters; A rolling mechanism is installed on both groups of guide limiters, and the rolling mechanism includes a lifting and adjusting component, a rotation driving component and multiple pressure rollers. The multiple pressure rollers are installed on the inner side of the guide limiter in a straight line. The rotation driving component can drive the multiple pressure rollers to rotate at the same linear speed as the conveyor line, and the lifting and adjusting component can simultaneously lift and lower the heights of the multiple pressure rollers synchronously.

[0007] Furthermore, the conveyor line includes a conveyor frame, a conveyor belt is installed at one end of the conveyor frame, a conveyor roller group is installed at the other end of the conveyor frame, and the color printer is installed above the end of the conveyor belt.

[0008] Furthermore, the guide limit member includes a plurality of positioning seats, and the plurality of positioning seats are equidistantly distributed and fixedly installed on the top surface of the conveying frame. An adjustment shaft is slidably inserted on each of the positioning seats, and a limit plate is fixedly installed on the inner end of the adjustment shaft, and a guide plate inclined outward is installed on the front side of the limit plate.

[0009] Furthermore, the spacing adjustment assembly includes a driving unit, a bracket and two adjustment frames, the two adjustment frames are respectively arranged on both sides of the conveying frame and are fixedly connected to the outer ends of the adjustment shafts on the sides; The bracket is fixedly installed on the bottom end of the conveying frame, and a linkage adjustment plate is rotatably installed at the center position of the bottom surface of the bracket. Both ends of the linkage adjustment plate are rotatably installed with symmetrically distributed connecting rods, and the outer ends of the two connecting rods are rotatably connected to the bottom ends of the two adjustment frames respectively. The driving unit is installed on the bottom surface of the bracket and can drive one of the adjustment frames to translate left and right along the width direction of the conveying frame.

[0010] Furthermore, the driving unit includes a plurality of adjusting cylinders, the plurality of adjusting cylinders are fixedly mounted on one side of the bottom surface of the bracket, and the telescopic ends of the plurality of adjusting cylinders are fixedly connected to the bottom end of one of the adjusting frames.

[0011] Furthermore, the limiting plate and the guide plate are hinged via an elastic hinge shaft, and the front end of the guide plate can abut against the inner wall of the conveying frame under the elastic torsional force of the elastic hinge shaft.

[0012] Furthermore, the lifting and adjusting assembly includes a plurality of support plates, and the plurality of support plates are equidistantly fixedly installed on the top surface of the limit plate, a lifting cylinder is fixedly installed on the front side of the support plate, a lifting and adjusting plate is fixedly installed on the telescopic end of the bottom of the lifting and adjusting cylinder, a plurality of equidistantly distributed rotating shafts are rotatably installed on the bottom end of the inner side surface of the lifting and adjusting plate, and the pressure roller is fixedly installed on the inner end of the rotating shaft.

[0013] Furthermore, the rotary drive assembly includes a transmission shaft, which is rotatably mounted on the outer side of the limit plate, a friction wheel is fixedly mounted on the outer end of the transmission shaft, and the bottom end of the friction wheel rolls against the top surface of the conveyor belt. The outer end of the rotating shaft extends to the outer side of the limit plate, and a synchronous wheel is fixedly mounted on the outer end of the rotating shaft and the transmission shaft, and the two synchronous wheels are connected by a synchronous belt transmission.

[0014] Furthermore, the limit plate is provided with a lifting guide groove corresponding to the rotating shaft, a lifting slide is slidably installed in the lifting guide groove, and the outer end of the rotating shaft is rotatably connected to the lifting slide; A main shaft located above the synchronous belt is fixedly mounted on the outer wall of the limit plate, a slide plate is slidably mounted inside the main shaft, a pressure spring is abutted against the inner end of the slide plate, a telescopic rod extending to the outside of the main shaft is fixedly mounted on the outer end of the slide plate, a roller frame is fixedly mounted on the outer end of the telescopic rod, and a tensioning wheel that can abut and tension the synchronous belt is rotatably mounted on the roller frame.

[0015] The present invention has the following beneficial effects: 1. In the present invention, during color printing, the limiting and correcting mechanism is used to correct and straighten the articles to be color-printed during transportation, and the straightened articles are guided and limited, so that the articles can be straightened and pass under the color printing machine, so as to improve the color printing effect of the color printing machine on the articles. At the same time, the roller pressing mechanism is used to limit the roller pressing of the articles during transportation and color printing. The roller pressing can not only improve the flatness of the articles, but also improve the stability of the articles placed on the conveyor line, prevent the articles from being displaced during the color printing process, and further improve the color printing effect of the articles. The roller pressing mechanism rotates at the same linear speed as the conveyor line, so that the roller pressing mechanism and the conveyor line cooperate to convey the articles to be color-printed, thereby improving the stability of conveying the color-printed articles.

[0016] 2. In the present invention, when color printing is performed on a paper box, the paper box being conveyed is corrected and aligned by the cooperation of two sets of guide limiters, and the aligned paper box is guided and limited to improve the color printing effect of the paper box; the two sets of guide limiters can also be driven by the spacing adjustment component to move toward each other or move in the opposite direction to open, so as to adjust the spacing between the two sets of guide limiters, thereby facilitating the conveying and color printing of paper boxes of different sizes.

[0017] 3. In the present invention, when color printing is performed on a paper box, multiple pressure rollers cooperate to roll and convey both sides of the paper box, further improving the stability of the paper box during color printing, so as to improve the color printing effect of the paper box, and the lifting and adjusting component can simultaneously lift and adjust the height of multiple pressure rollers synchronously, thereby facilitating the transportation and color printing of paper boxes of different thicknesses.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, they can also obtain drawings based on these drawings without paying creative work.

[0020] Figure 1 It is one of the three-dimensional structural schematic diagrams of the color printing device of the present invention; Figure 2 For the present invention Figure 1 A local enlarged structural schematic diagram; Figure 3 The second schematic diagram of the three-dimensional structure of the color printing device of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B; Figure 5 The third schematic diagram of the three-dimensional structure of the color printing device of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C; Figure 7 For the present invention Figure 5 A schematic diagram of the local enlarged structure at D; Figure 8 For the present invention Figure 5 A schematic diagram of the local enlarged structure at E; Fig. 9 The fourth schematic diagram of the three-dimensional structure of the color printing device of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the local enlarged structure at F.

[0021] In the figure: 1. conveyor line; 11. conveyor frame; 12. conveyor belt; 13. conveyor roller group; 2. color printing machine; 3. limit correction mechanism; 31. limit plate; 32. guide plate; 33. adjustment frame; 34. adjustment shaft; 35. positioning seat; 36. connecting rod; 37. bracket; 38. linkage adjustment plate; 39. adjustment cylinder; 310. elastic hinge shaft; 4. rolling mechanism; 41. support plate; 42. lifting cylinder; 43. lifting adjustment plate; 44. pressure roller; 45. friction wheel; 46. lifting guide groove; 47. rotating shaft; 48. lifting slide seat; 49. synchronous wheel; 410. synchronous belt; 411. transmission shaft; 412. tensioning wheel; 413. roller frame; 414. telescopic rod; 415. main shaft; 416. slide plate; 417. pressure spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0023] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention. Embodiment 1

[0024] This embodiment discloses a color printing method, and the specific steps are as follows: The articles to be printed are placed on the conveyor line 1, and the articles to be printed are conveyed toward the color printer 2 through the conveyor line 1; the articles to be printed are corrected and aligned through the position limiting and deviation correcting mechanism 3, and the aligned articles are guided and limited; the articles to be printed are then roller pressed and limited through the roller pressing mechanism 4, and the roller pressing mechanism 4 rotates at the same linear speed as the conveyor line 1, so that the roller pressing mechanism 4 cooperates with the conveyor line 1 to convey the articles to be printed, until the articles move through the color printer 2, and the color printing process is completed; In this embodiment, the articles are straightened and passed under the color printer 2 to improve the color printing effect of the color printer 2 on the articles. At the same time, rolling can not only improve the flatness of the articles, but also improve the stability of the articles placed on the conveyor line 1, prevent the articles from shifting during the color printing process, and further improve the color printing effect of the articles. The rolling mechanism 4 cooperates with the conveyor line 1 to convey the articles to be color printed, thereby improving the stability of conveying the color printed articles. Embodiment 2

[0025] See also Figure 1 , Figure 2As shown, the present embodiment discloses a color printing device for color box production, comprising a conveyor line 1 and a color printer 2 installed above the conveyor line 1, the conveyor line 1 is used to move and convey the color box to be printed toward the color printer 2, and a limited deviation correction mechanism 3 is also installed on the conveyor line 1, the limited deviation correction mechanism 3 comprises a spacing adjustment component and two groups of guide limiters, the two groups of guide limiters are symmetrically distributed on both sides above the conveyor line 1, and are used to correct and straighten the color box being conveyed, and guide and limit the straightened color box, the spacing adjustment component can drive the two groups of guide limiters to move towards each other or move in the opposite direction to open, so as to adjust the spacing between the two groups of guide limiters; a roller pressing mechanism 4 is installed on both groups of guide limiters, the roller pressing mechanism 4 comprises a lifting adjustment component, a rotation drive component and a plurality of pressure rollers 44, the plurality of pressure rollers 44 are linearly distributed and installed on the inner side of the guide limiter, the rotation drive component can drive the plurality of pressure rollers 44 to rotate at the same linear speed as the conveyor line 1, and the lifting adjustment component can simultaneously lift and lower the heights of the plurality of pressure rollers 44 synchronously; When the paper boxes are printed with color by the color printing device, the paper boxes are placed on the conveyor line 1 in turn, and the paper boxes are continuously conveyed toward the color printing machine 2 through the conveyor line 1. During the paper box conveying process, the two groups of guide limiters cooperate to correct the deviation of the paper boxes, and guide and limit the aligned paper boxes. At the same time, multiple pressure rollers 44 cooperate to roller-convey the two sides of the paper boxes, so as to further improve the stability of the paper boxes during color printing, so as to improve the color printing effect of the paper boxes; the two groups of guide limiters can also be driven by the spacing adjustment component to move toward each other or move in the opposite direction to open, so as to adjust the spacing between the two groups of guide limiters, so as to facilitate the conveying and color printing of paper boxes of different sizes, and the height of multiple pressure rollers 44 can be simultaneously raised and lowered by the lifting and adjusting component, so as to facilitate the conveying and color printing of paper boxes of different thicknesses. Embodiment 3

[0026] See also Figure 1 As shown, the difference between this embodiment and the above embodiment is that the conveyor line 1 includes a conveyor frame 11, a conveyor belt 12 is installed at one end of the conveyor frame 11, a conveyor roller group 13 is installed at the other end of the conveyor frame 11, and the color printer 2 is installed above the end of the conveyor belt 12; When the carton is color-printed, the carton is transported toward the color printer 2 by the conveyor belt 12. When the carton passes under the color printer 2, the color printer 2 performs color printing on the carton being transported to process the carton into a color box. The color-printed color box is then transported to the conveyor roller group 13, which continues to transport it backwards. Embodiment 4

[0027] See also Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, the difference between this embodiment and the above embodiment is that the guide limiter includes a plurality of positioning seats 35, and the plurality of positioning seats 35 are equidistantly distributed and fixedly installed on the top surface of the conveying frame 11, and an adjustment shaft 34 is slidably inserted on each positioning seat 35, and a limit plate 31 is fixedly installed on the inner end of the adjustment shaft 34, and a guide plate 32 inclined outwardly is installed on the front side of the limit plate 31; Among them, the spacing between the two limit plates 31 is equal to the width of the paper box, and the two guide plates 32 form a V-shaped opening guide structure on the top surface of the conveyor belt 12. When the paper box is transported along the conveyor belt 12 toward the color printer 2, when the paper box is transported through the guide plate 32, the guide plate 32 inclined outward can guide the paper box to correct the deviation, so that the paper box is gradually straightened, and then continues to move and transport between the two limit plates 31. At this time, the two limit plates 31 respectively abut and limit the two sides of the paper box, so that the paper box always remains in an aligned state during the transportation process, and then the paper box is straightened to pass under the color printer 2 to improve the color printing effect of the paper box. Embodiment 5

[0028] See also Figure 1-Figure 4 As shown, the difference between this embodiment and the above-mentioned embodiment is that the spacing adjustment component includes a driving unit, a bracket 37 and two adjustment brackets 33, the two adjustment brackets 33 are respectively arranged on both sides of the conveying frame 11, and are fixedly connected to the outer end of the adjustment shaft 34 on this side; the bracket 37 is fixedly installed on the bottom end of the conveying frame 11, and a linkage adjustment plate 38 is rotatably installed at the center position of the bottom surface of the bracket 37, and symmetrically distributed connecting rods 36 are rotatably installed at both ends of the linkage adjustment plate 38, and the outer ends of the two connecting rods 36 are respectively rotatably connected to the bottom ends of the two adjustment brackets 33, and the driving unit is installed on the bottom surface of the bracket 37, and can drive one of the adjustment brackets 33 to translate left and right along the width direction of the conveying frame 11; the driving unit includes a plurality of adjusting cylinders 39, and the plurality of adjusting cylinders 39 are fixedly installed on one side of the bottom surface of the bracket 37, and the telescopic ends of the plurality of adjusting cylinders 39 are fixedly connected to the bottom end of one of the adjusting brackets 33; When the distance between the two limit plates 31 needs to be adjusted according to the width of the color-printed paper box, the adjusting cylinder 39 is first driven to extend or contract, so that the adjusting frame 33 connected to the telescopic end thereof is driven to move by the extension or contraction of the adjusting cylinder 39; Specifically, when the adjusting cylinder 39 is extended, the adjusting cylinder 39 drives the adjusting frame 33 to move in the direction away from the conveying frame 11. At this time, the adjusting frame 33 pulls the limiting plate 31 on the same side to move toward the outside of the conveying belt 12 through the adjusting shaft 34 on the side. At the same time, the adjusting frame 33 pulls the linkage adjusting plate 38 to rotate clockwise through the connecting rod 36 on the side, so that the linkage adjusting plate 38 pushes the adjusting frame 33 on the other side to move outward synchronously through the connecting rod 36 at the other end, so that the adjusting frame 33 pulls the limiting plate 31 on the other side to move toward the outside of the conveying belt 12 synchronously through the adjusting shaft 34, thereby causing the two limiting plates 31 to move in opposite directions, and the distance between the two limiting plates 31 gradually increases until the distance between the two limiting plates 31 is equal to the width of the paper box; Correspondingly, when the adjusting cylinder 39 contracts, the adjusting cylinder 39 drives the adjusting frame 33 on this side to move toward the direction close to the conveying frame 11. At this time, the adjusting frame 33 pushes the limiting plate 31 on the same side to move toward the inner side of the conveying belt 12 through the adjusting shaft 34 on this side. At the same time, the adjusting frame 33 pushes the linkage adjusting plate 38 to rotate counterclockwise through the connecting rod 36 on this side, so that the linkage adjusting plate 38 pulls the adjusting frame 33 on the other side to move inward synchronously through the connecting rod 36 at the other end, so that the adjusting frame 33 pushes the limiting plate 31 on the other side to move toward the inner side of the conveying belt 12 synchronously through the adjusting shaft 34, thereby making the two limiting plates 31 move toward each other until the distance between the two limiting plates 31 is equal to the width of the paper box; The distance between the two limit plates 31 is linked and adjusted by means of the linkage adjustment plate 38, two connecting rods 36 and two adjustment frames 33, which not only makes the distance adjustment process between the two limit plates 31 more convenient and quick, but also makes the two limit plates 31 always symmetrically distributed on both sides of the conveyor belt 12 during the adjustment process, thereby improving the limiting and aligning effect of the limit plates 31 on the paper box, ensuring that the paper box is aligned and transported in the center on the conveyor belt 12.

[0029] Furthermore, the limit plate 31 and the guide plate 32 are hinged by an elastic hinge shaft 310, and the guide plate 32 is hinged to the front side end of the limit plate 31 by the elastic hinge shaft 310. When the limit plate 31 is moved and adjusted on the conveyor belt 12, the front side end of the guide plate 32 can always abut against the inner wall of the conveyor frame 11 under the elastic torsional force of the elastic hinge shaft 310, so that the maximum opening state is always maintained between the two guide plates 32, thereby improving the guiding and correcting effect of the guide plate 32 on the paper box. Embodiment 6

[0030] See also Figure 1 , Figure 2 , Figure 5 , Figure 7-10As shown, the difference between this embodiment and the above embodiment is that the lifting and adjusting assembly includes a plurality of support plates 41, and the plurality of support plates 41 are equidistantly fixedly installed on the top surface of the limiting plate 31, a lifting cylinder 42 is fixedly installed on the front side of the support plate 41, a lifting and adjusting plate 43 is fixedly installed on the telescopic end of the bottom of the lifting and adjusting cylinder 42, a plurality of equidistantly distributed rotating shafts 47 are rotatably installed on the bottom end of the inner side surface of the lifting and adjusting plate 43, and a pressure roller 44 is fixedly installed on the inner end of the rotating shaft 47; The rotary drive assembly includes a transmission shaft 411, which is rotatably mounted on the outer side of the limit plate 31. A friction wheel 45 is fixedly mounted on the outer end of the transmission shaft 411. The bottom end of the friction wheel 45 rolls against the top surface of the conveyor belt 12. The outer end of the rotating shaft 47 extends to the outer side of the limit plate 31. A synchronous wheel 49 is fixedly mounted on the outer end of the rotating shaft 47 and the transmission shaft 411. The two synchronous wheels 49 are connected by a synchronous belt 410. The diameter of the friction wheel 45 is the same as that of the pressure roller 44. When the carton is printed, the lifting cylinder 42 is extended and retracted to drive the lifting adjustment plate 43 to move up and down, so that the lifting adjustment plate 43 drives the pressure roller 44 to move up and down, so that the spacing between the bottom end of the pressure roller 44 and the conveying belt 12 is the same as the thickness of the carton. When the conveying belt 12 conveys the carton, the conveying belt 12 can drive the friction wheel 45 to rotate at the same linear speed as the conveying belt 12 through friction. At this time, the friction wheel 45 drives the transmission shaft 41 1 rotates synchronously, and the transmission shaft 411 drives the rotating shaft 47 to rotate synchronously through the transmission of the synchronous wheel 49 and the synchronous belt 410. Finally, the rotating shaft 47 drives the pressing roller 44 to rotate at the same linear speed as the conveying belt 12. At this time, the pressing roller 44 performs roller pressure limiting on both sides of the paper box conveyed on the conveying belt 12 to improve the flatness of the paper box, thereby improving the color printing effect of the paper box. At the same time, the pressing roller 44 cooperates with the conveying belt 12 to convey the paper box, which improves the stability of the paper box conveying and ensures that the paper box is smoothly conveyed during the color printing process.

[0031] Furthermore, a lifting guide groove 46 corresponding to the rotating shaft 47 is provided on the limit plate 31, a lifting slide 48 is slidably installed in the lifting guide groove 46, and the outer end of the rotating shaft 47 is rotatably connected to the lifting slide 48; a main shaft 415 located above the synchronous belt 410 is fixedly installed on the outer wall of the limit plate 31, a slide plate 416 is slidably installed inside the main shaft 415, a pressure spring 417 is abutted against the inner end of the slide plate 416, a telescopic rod 414 extending to the outside of the main shaft 415 is fixedly installed on the outer end of the slide plate 416, a roller frame 413 is fixedly installed on the outer end of the telescopic rod 414, and a tensioning wheel 412 that can abut and tension the synchronous belt 410 is rotatably installed on the roller frame 413; When the lifting adjustment plate 43 drives the rotating shaft 47 and the pressure roller 44 to perform lifting adjustment, the rotating shaft 47 drives the lifting slide 48 to synchronously lift and slide in the lifting guide groove 46, and the lifting slide 48 can limit the outer end of the rotating shaft 47, so that the lifting adjustment and rotation operation process of the rotating shaft 47 is more stable, and when the rotating shaft 47 is lifted and adjusted, it will drive the outer synchronous wheel 49 to perform lifting adjustment synchronously, so that the distance between the two synchronous wheels 49 changes; When the distance between the two synchronous wheels 49 decreases, the synchronous belt 410 will gradually loosen. At this time, the pressure spring 417 pushes the slide plate 416 downward in the main shaft 415 through the return elastic force, so that the slide plate 416 drives the telescopic rod 414, the roller frame 413 and the tensioning wheel 412 to move downward, so that the tensioning wheel 412 abuts against the synchronous belt 410 for tensioning, so that the synchronous belt 410 and the two synchronous wheels 49 always maintain a tensioned transmission state; When the distance between the two synchronous wheels 49 increases, the synchronous belt 410 will be gradually stretched and tightened. At this time, the tensioning wheel 412 is abutted and moved upward under the action of the tensioning force of the synchronous belt 410, and the slide plate 416 is driven to move upward in the main shaft 415 through the roller frame 413 and the telescopic rod 414, so that the slide plate 416 abuts and contracts the pressure spring 417, thereby loosening the synchronous belt 410 through the movement of the tensioning wheel 412 to prevent the synchronous belt 410 from being over-tensioned and causing breakage, so that the synchronous belt 410 and the two synchronous wheels 49 maintain a normal tension transmission state.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can understand and use the invention well.

Claims

1. A color printing method, characterized in that: The specific steps are as follows: Place the items to be printed on the conveyor line, and transport them toward the color printer through the conveyor line; The position limiting and deviation correcting mechanism is used to correct and straighten the objects to be printed during transportation, and the corrected objects are guided and limited; The roller mechanism is then used to limit the position of the items to be printed during transportation. At the same time, the roller mechanism rotates at the same linear speed as the conveyor line, so that the roller mechanism and the conveyor line cooperate to transport the items to be printed until the items move through the color printing machine and the color printing process is completed.

2. A color printing device for color box production, comprising a conveyor line and a color printer installed above the conveyor line, characterized in that: The conveyor line is used to move the color box to be printed toward the color printer. A position-limiting deviation correction mechanism is also installed on the conveyor line. The position-limiting deviation correction mechanism includes a spacing adjustment component and two groups of guide limiters. The two groups of guide limiters are symmetrically distributed on both sides above the conveyor line, and are used to correct the deviation of the color box being conveyed and guide and limit the corrected color box. The spacing adjustment component can drive the two groups of guide limiters to move toward each other or move in the opposite direction to open, so as to adjust the spacing between the two groups of guide limiters. A rolling mechanism is installed on both groups of guide limiters, and the rolling mechanism includes a lifting and adjusting component, a rotation driving component and multiple pressure rollers. The multiple pressure rollers are installed on the inner side of the guide limiter in a straight line. The rotation driving component can drive the multiple pressure rollers to rotate at the same linear speed as the conveyor line, and the lifting and adjusting component can simultaneously lift and lower the heights of the multiple pressure rollers synchronously.

3. A color printing device for color box production according to claim 2, characterized in that: The conveyor line comprises a conveyor frame, one end of which is provided with a conveyor belt, the other end of which is provided with a conveyor roller group, and the color printer is installed above the end of the conveyor belt.

4. A color printing device for color box production according to claim 3, characterized in that: The guide limiter comprises a plurality of positioning seats, which are evenly distributed and fixedly mounted on the top surface of the conveying frame. An adjusting shaft is slidably inserted on each positioning seat, a limiting plate is fixedly mounted on the inner end of the adjusting shaft, and a guide plate inclined outward is mounted on the front side of the limiting plate.

5. A color printing device for color box production according to claim 4, characterized in that: The spacing adjustment assembly includes a driving unit, a bracket and two adjustment frames, the two adjustment frames are respectively arranged on both sides of the conveying frame and fixedly connected to the outer end of the adjustment shaft on the side; The bracket is fixedly installed on the bottom end of the conveying frame, and a linkage adjustment plate is rotatably installed at the center position of the bottom surface of the bracket. Both ends of the linkage adjustment plate are rotatably installed with symmetrically distributed connecting rods, and the outer ends of the two connecting rods are rotatably connected to the bottom ends of the two adjustment frames respectively. The driving unit is installed on the bottom surface of the bracket and can drive one of the adjustment frames to translate left and right along the width direction of the conveying frame.

6. A color printing device for color box production according to claim 5, characterized in that: The driving unit comprises a plurality of adjusting cylinders, the plurality of adjusting cylinders are fixedly mounted on one side of the bottom surface of the bracket, and the telescopic ends of the plurality of adjusting cylinders are fixedly connected to the bottom end of one of the adjusting brackets.

7. A color printing device for color box production according to claim 4, characterized in that: The limiting plate and the guide plate are hinged via an elastic hinge shaft, and the front end of the guide plate can abut against the inner wall of the conveying frame under the elastic torsional force of the elastic hinge shaft.

8. A color printing device for color box production according to claim 4, characterized in that: The lifting and adjusting assembly includes a plurality of support plates, and the plurality of support plates are equidistantly fixedly installed on the top surface of the limit plate. A lifting cylinder is fixedly installed on the front side of the support plate, and a lifting and adjusting plate is fixedly installed on the telescopic end of the bottom of the lifting and adjusting cylinder. A plurality of equidistantly distributed rotating shafts are rotatably installed on the bottom end of the inner side surface of the lifting and adjusting plate, and the pressure roller is fixedly installed on the inner end of the rotating shaft.

9. A color printing device for color box production according to claim 8, characterized in that: The rotary drive assembly includes a transmission shaft, which is rotatably mounted on the outer side of the limit plate, a friction wheel is fixedly mounted on the outer end of the transmission shaft, and the bottom end of the friction wheel rolls against the top surface of the conveyor belt. The outer end of the rotating shaft extends to the outer side of the limit plate, and synchronous wheels are fixedly mounted on the outer end of the rotating shaft and the transmission shaft, and the two synchronous wheels are connected by a synchronous belt transmission.

10. A color printing device for color box production according to claim 9, characterized in that: The limit plate is provided with a lifting guide groove corresponding to the rotating shaft, a lifting slide is slidably installed in the lifting guide groove, and the outer end of the rotating shaft is rotatably connected to the lifting slide; A main shaft located above the synchronous belt is fixedly mounted on the outer wall of the limit plate, a slide plate is slidably mounted inside the main shaft, a pressure spring is abutted against the inner end of the slide plate, a telescopic rod extending to the outside of the main shaft is fixedly mounted on the outer end of the slide plate, a roller frame is fixedly mounted on the outer end of the telescopic rod, and a tensioning wheel that can abut and tension the synchronous belt is rotatably mounted on the roller frame.

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