A flattening device for printing

Abstract

The application discloses a flattening device for printing, which comprises a rack, a workbench arranged below the rack, a clamping structure arranged on the workbench and used for clamping and fixing printed matters, a flattening piece movably arranged above the workbench, a moving structure and a lifting structure connected with the flattening piece, the moving structure being used for driving the flattening piece to move back and forth, and the lifting structure being used for driving the flattening piece to lift and fall, the flattening piece having a flattening state and a reset state, when the flattening piece is switched to the flattening state, the lifting structure drives the flattening piece to press down the printed matters, and the moving structure drives the flattening piece to move along the surface of the workbench, when the flattening piece is switched to the reset state, the lifting structure drives the flattening piece to lift and separate from the printed matters, and the moving structure drives the flattening piece to move back to the original position.

Description

Technical Field

[0001] This invention relates to the field of printing processing technology, and in particular to a flattening device for printing. Background Technology

[0002] Printing is a technology that involves transferring ink from original manuscripts such as text, pictures, photographs, and anti-counterfeiting materials to the surface of materials like paper, textiles, plastics, and leather through processes such as plate making, inking, and pressing. Whether before printing begins or during packaging after printing, the paper or pages to be printed need to be flattened and shaped to prevent wrinkles from altering the printing position or causing defective printed products.

[0003] Currently, manufacturers flatten printed materials before printing. They manually fix one end of the paper printed material, then manually pull the other end to tighten it, and finally use a lifting and flattening tool to flatten and shape the printed material, thereby eliminating wrinkles. This operation requires manual labor. First, the printed material is smoothed by hand, and then the flattened printed material is flattened and shaped by the lifting and flattening tool. For large-scale printing in existing factories, the long-term flattening work can easily cause fatigue, which is both time-consuming and labor-intensive, and the processing efficiency is not high. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a flattening device for printing, which, through the cooperation of a lifting structure and a moving structure, enables the flattening component to not only lift and flatten the printed material, but also to move relative to the printed material while pressing it, thus pushing away wrinkles on the printed material. The flattening component can also move back and forth in conjunction with the lifting structure to perform multiple flattening and shaping operations on the printed material, thereby achieving fully automated flattening work.

[0005] According to a first aspect of the present invention, a printing flattening device includes: a frame with a worktable below for placing printed matter, a clamping structure on the worktable for clamping and fixing the printed matter; a flattening member movably disposed above the worktable, the flattening member being connected to a moving structure and a lifting structure, the moving structure driving the flattening member to reciprocate, and the lifting structure driving the flattening member to move up and down; the flattening member has a flattened state and a reset state, the moving structure cooperating with the lifting structure to control the switching of the flattening member's state, and achieving flattening of the printed matter through multiple switching; when the flattening member is switched to the flattened state, the lifting structure drives the flattening member to press down on the printed matter, and the moving structure drives the flattening member to move along the surface of the worktable to flatten and shape the printed matter; when the flattening member is switched to the reset state, the lifting structure drives the flattening member to rise and separate from the printed matter, and the moving structure drives the flattening member to move back to its reset state.

[0006] According to an embodiment of the present invention, a printing flattening device has at least the following beneficial effects: through the cooperation of a moving structure and a lifting structure, when the flattening component presses on the printed material, it is driven to move forward, pushing away the wrinkles on the printed material; after the flattening component has pressed over the printed material once, the lifting structure drives it to leave the printed material, and the moving structure drives it to return to its initial position, and the aforementioned operation is repeated to perform a second flattening and shaping of the printed material; after repeating this process multiple times, a flat printed material can be obtained. In this embodiment, the flattening component can push away the wrinkles on the printed material while applying pressure to the printed material to shape it, completing the two processes of manual smoothing and tool flattening in the prior art in one go, improving processing efficiency, and can also be flattened multiple times, improving the quality of the printed material, and without the need for manual operation, achieving fully automated flattening.

[0007] According to some embodiments of the present invention, the movable structure includes a first connecting plate, a connecting gear, a rack, and a rotating assembly. The first connecting plate is movably disposed on the frame. The flattening member is lifted and installed below the first connecting plate. The rack is fixedly installed on the first connecting plate. The connecting gear is movably disposed on the first connecting plate and meshes with the rack. The rotating assembly is connected to the connecting gear to control the continuous directional rotation of the connecting gear. The rotation of the connecting gear drives the rack to reciprocate, and drives the first connecting plate and the flattening member to reciprocate.

[0008] According to some embodiments of the present invention, the rotating assembly includes a drive gear and a rotating disk. The drive gear is rotatably mounted on the frame, and the rotating disk is coaxially connected to the connecting gear and is drively connected to the drive gear. The rotation of the drive gear can drive the rotating disk to rotate continuously in different directions, thereby controlling the continuous rotation of the connecting gear.

[0009] According to some embodiments of the present invention, the driving gear has teeth on a portion of its circumferential surface, and there are two driving gears, which are coaxially connected and symmetrically arranged; the rotating disk has a plurality of disk teeth evenly distributed along the circumferential direction, and when a portion of the teeth of one of the driving gears meshes with the rotating disk, the other driving gear separates from the rotating disk; the two driving gears rotate continuously in the same direction, driving the rotating disk to rotate continuously in different directions.

[0010] According to some embodiments of the present invention, the driving gear is a sector gear, and the two driving gears are a first gear and a second gear, respectively; during one revolution of the driving gear, the rotating disk has a first state of being engaged with the first gear, a second state of being separated from both the first and second gears, and a third state of being engaged with the second gear; when the rotating disk is in the first state, the rotating disk rotates clockwise, and the flattening component moves and flattens the printed matter; when it is in the second state, the rotating disk stops rotating, and the flattening component stops moving; when it is in the third state, the rotating disk reverses direction, and the flattening component moves and resets.

[0011] According to some embodiments of the present invention, the lifting structure includes a second connecting plate and a lifting assembly. The second connecting plate is liftably connected to the lower part of the first connecting plate, and the flattening member is fixedly installed below the first connecting plate. The lifting assembly is connected to the second connecting plate and is used to drive the second connecting plate to lift, thereby driving the flattening member to lift.

[0012] According to some embodiments of the present invention, the lifting assembly includes a lifting top block and a cam. The lifting top block is connected to the second connecting plate. The cam is rotatably mounted on the frame and located below the lifting top block. During the rotation of the cam, when the long shaft end of the cam abuts against the lifting top block, the cam lifts the lifting top block, causing the lifting top block and the second connecting plate to rise. When the long shaft end separates from the lifting top block, the lifting top block and the second connecting plate descend.

[0013] According to some embodiments of the present invention, an elastic element is connected between the second connecting plate and the first connecting plate. When the long shaft end abuts against the lifting block, the lifting block rises and the elastic element is compressed. When the long shaft end separates from the lifting block, the elastic element stretches and resets, driving the lifting block to descend.

[0014] According to some embodiments of the present invention, the second connecting plate is provided with a clearance groove, the lifting top block passes through the clearance groove, the two ends of the lifting top block are movably connected to the frame and can be raised and lowered relative to the frame; the raising and lowering of the lifting top block can drive the second connecting plate to rise and fall, and the lifting top block can move along the clearance groove when the second connecting plate moves.

[0015] According to some embodiments of the present invention, the clamping structure includes a clamping plate and a lifting member. The clamping plate is rotatably mounted on the frame and located on one side of the worktable. The lifting member is connected to the end of the clamping plate away from the worktable and is used to drive the clamping plate to rotate so as to press the printed matter onto the worktable.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the installation structure according to an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the structure when the flattening component moves forward to flatten;

[0021] Figure 4 for Figure 3 A front view of the embodiment;

[0022] Figure 5 for Figure 3 AA cross-sectional view of the embodiment;

[0023] Figure 6 This is a schematic diagram of the structure when the flattening component moves backward and resets.

[0024] Figure 7 for Figure 6 A front view of the embodiment;

[0025] Figure 8 for Figure 6 BB cross-sectional view of the Chinese embodiment.

[0026] Icon labels:

[0027] Frame 100, bracket 110, movable slot 111, base 120, mounting bracket 130, mounting hole 131, worktable 140, clamping structure 150, clamping plate 151, lifting component 152, connecting shaft 153, motor 160, transmission structure 170, first pulley 171, second pulley 172, transmission belt 173;

[0028] Flattening component 200, connecting rod 210, roller 220;

[0029] The movable structure 300 includes a first connecting plate 310, a guide hole 311, a movable groove 312, a connecting gear 320, a rack 330, a rotating assembly 340, a rotating disk 341, a disk shaft 342, a drive shaft 343, a first gear 344, and a second gear 345.

[0030] The lifting structure 400, the second connecting plate 410, the clearance groove 411, the lifting assembly 420, the cam 421, the lifting top block 422, the movable shaft 423, the elastic element 430, and the guide rod 431. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0033] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0034] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0035] Reference Figures 1 to 8 The printing flattening device provided in this embodiment of the invention includes a frame 100 and a flattening component 200.

[0036] Printing machinery is a general term for mechanical equipment such as printing presses, binding machines, plate-making machines, and other auxiliary equipment. These mechanical equipment have different performance and uses. Modern printing presses are generally composed of mechanisms such as plate mounting, inking, printing, and paper feeding. When it is working, the text and images to be printed are first made into a printing plate, which is then mounted on the printing press. Ink is then applied to the areas with text and images on the printing plate by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other printing substrates, thereby reproducing printed products identical to the printing plate.

[0037] The rapid development of the printing industry has driven the demand for printing machinery, enabling my country's printing machinery industry to develop rapidly. With social development and technological progress, people have increasingly higher requirements for printing technology. After the paper is fed onto the conveyor belt, it is required to lie flat on the conveyor belt. However, due to the elasticity and flatness of the paper, or the influence of environmental factors, the paper may not lie flat, such as the ends of the paper curling up or the middle bulging. Since there are height restrictions at the printing paper inlet, if the paper curls up or bulges, it may cause paper feeding obstacles and unclear printing.

[0038] Therefore, whether before printing begins or during the packaging process after printing, the paper or pages to be printed need to be flattened and shaped. Existing printing machinery usually only has lifting and flattening components such as pressure heads, and does not have equipment for fully automatic flattening of printed materials. Before flattening, the printed materials often need to be manually stretched and smoothed. This operation requires manual labor, and for large-scale printing in existing factories, long-term flattening work can easily cause fatigue, which is both time-consuming and labor-intensive, resulting in low processing efficiency.

[0039] To address the aforementioned problems, the present invention proposes a printing flattening device comprising a frame 100 and a flattening component 200. The flattening component 200 can both lift and press the printed material flat, and while pressing the printed material, it can also move relative to the printed material to push away wrinkles. Furthermore, in this embodiment, the flattening component 200 can also reciprocate in conjunction with the lifting mechanism to perform multiple flattening and shaping operations on the printed material.

[0040] Reference Figure 2 The frame 100 includes a support 110 and a base 120. The base 120 has an installation opening in the middle. The left and right legs of the support 110 are respectively located on the left and right sides of the installation opening on the base 120. A worktable 140 is provided below the support 110 for placing printed materials. The worktable 140 is located in the installation opening. A clamping structure 150 is provided on the worktable 140. The clamping structure 150 is used to clamp and fix the printed materials waiting to be printed. When the printed materials are flattened, the clamping structure 150 is released to allow the printed materials to be taken out.

[0041] Furthermore, the workbench 140 is fixed below the support 110. The printed matter can be placed directly on the workbench 140, or a moving structure 300 (such as a conveyor belt) can be set on the workbench 140 to place the printed matter on the moving structure 300. After the printed matter is flattened, the moving structure 300 can directly transfer the printed matter to the printing station for printing.

[0042] Reference Figure 1 The flattening component 200 is movably mounted above the worktable 140. The flattening component 200 is connected to a moving structure 300 and a lifting structure 400. The moving structure 300 is used to drive the flattening component 200 to move back and forth, and the lifting structure 400 is used to drive the flattening component 200 to move up and down. The flattening component 200 has a flattened state and a reset state. The moving structure 300 and the lifting structure 400 cooperate to control the switching of the state of the flattening component 200, and achieve the flattening of the printed matter through multiple switching.

[0043] Reference Figures 3 to 4 When the flattening component 200 switches to the flattening state, the lifting structure 400 drives the flattening component 200 to descend, pressing the printed material down. The moving structure 300 then drives the flattening component 200 to move forward along the surface of the worktable 140. (Refer to...) Figure 5 The flattening component 200 moves forward relative to the printed matter, pushing aside wrinkles on the printed matter to flatten and shape it; see reference. Figures 6 to 7 When the flattening component 200 switches to the reset state, the lifting structure 400 drives the flattening component 200 to rise and separate from the printed material, and the moving structure 300 drives the flattening component 200 to move backward to reset. Figure 8 ).

[0044] With the cooperation of the moving structure 300 and the lifting structure 400, when the flattening component 200 presses down on the printed material, it is driven to move forward to push away the wrinkles on the printed material. After the flattening component 200 presses down on the printed material once, the lifting structure 400 drives it to leave the printed material, and the moving structure 300 drives it to return to the initial position. The above operation is repeated to flatten and shape the printed material a second time. After repeating this process multiple times, a flat printed material can be obtained.

[0045] In this embodiment, the flattening component 200 can push open the wrinkles on the printed material while applying pressure to the printed material to shape it. It completes the two processes of manual smoothing and tool flattening in the prior art in one go, which improves the processing efficiency. It can also be flattened repeatedly to improve the quality of the printed material. Moreover, it does not require manual operation and realizes fully automated flattening.

[0046] Reference Figure 2In some specific embodiments of the present invention, the movable structure 300 includes a first connecting plate 310, a connecting gear 320, a rack 330, and a rotating assembly 340. The first connecting plate 310 is movably mounted on the frame 100. The flattening member 200 is lifted and installed below the first connecting plate 310. The rack 330 is fixedly mounted on the first connecting plate 310. The connecting gear 320 is movably mounted on the first connecting plate 310 and meshes with the rack 330. The rotating assembly 340 is connected to the connecting gear 320 to control the continuous directional rotation of the connecting gear 320. The rotation of the connecting gear 320 drives the rack 330 to reciprocate, and drives the first connecting plate 310 and the flattening member 200 to reciprocate.

[0047] Specifically, the rotating assembly 340 is located above the first connecting plate 310. The first connecting plate 310 is movably connected to the frame 100 through the rotating assembly 340. The rotating assembly 340 is connected to the connecting gear 320. The connecting gear 320 meshes with the rack 330 on the first connecting plate 310. The rotating assembly 340 drives the connecting gear 320 to rotate, thereby moving the rack 330 and enabling the first connecting plate 310 to move back and forth relative to the support 110, thereby driving the flattening member 200 to move back and forth.

[0048] Furthermore, the rotating assembly 340 can drive the connecting gear 320 to rotate continuously in different directions, that is, drive the connecting gear 320 to rotate alternately in the forward and reverse directions. When the rotating assembly 340 drives the connecting gear 320 to rotate in the forward direction, the rack 330 drives the first connecting plate 310 to move forward. At this time, the flattening member 200 presses down on the printed matter under the drive of the lifting structure 400. The first connecting plate 310 drives the flattening member 200 to move forward and flatten the printed matter. After the flattening member 200 has pressed over the printed matter (moving from the head to the tail of the area to be flattened), the flattening member 200 rises under the drive of the lifting structure 400 and separates from the printed matter. At this time, the rotating assembly 340 drives the connecting gear 320 to rotate in the reverse direction, and the rack 330 drives the first connecting plate 310 to move backward and return to the head position of the area. The rotating assembly 340 drives the connecting gear 320 to rotate in the forward direction again to flatten the printed matter a second time. This cycle is repeated multiple times until the surface of the printed matter is flattened.

[0049] Reference Figure 2 In a further embodiment of the present invention, the rotating assembly 340 includes a drive gear and a rotating disk 341. The drive gear is rotatably mounted on the frame 100. The rotating disk 341 is coaxially connected to the connecting gear 320 and is driven by the drive gear. The rotation of the drive gear can drive the rotating disk 341 to rotate. The drive gear is connected to a first motor 160. The first motor 160 controls the rotating disk 341 to rotate continuously in different directions (alternating forward and reverse rotation) through the drive gear, thereby driving the connecting gear 320 to rotate continuously in different directions, thereby driving the first connecting plate 310 to reciprocate.

[0050] Specifically, when the first connecting plate 310 moves, the position of the rotating assembly 340 remains unchanged; that is, the rotating assembly 340 needs to remain spatially stationary relative to the frame 100 (it can rotate relative to the frame 100). (Refer to...) Figures 1 to 2 In this embodiment, a mounting bracket 130 is detachably connected to the bracket 110. The mounting bracket 130 has a mounting hole 131, and a disc shaft 342 passes through the mounting hole 131. The rotating disc 341 and the connecting gear 320 are both mounted on the disc shaft 342. The drive gear is located above the mounting bracket 130, the rotating disc 341 is located below the mounting bracket 130, the connecting gear 320 is located below the rotating disc 341, and the first connecting plate 310 is located below the connecting gear 320. In order for the first connecting plate 310 to move relative to the rotating assembly 340, refer to... Figure 2 The first connecting plate 310 has a moving groove 312, and the lower end of the disc shaft 342 passes through the moving groove 312 and extends out from the bottom of the first connecting plate 310, as shown in the figure. Figure 4 The rotating disk 341, the connecting gear 320, and the first connecting plate 310 are tightly attached to each other from top to bottom. The upper and lower ends of the disk shaft 342 are connected with shaft end caps (not shown in the figure) to restrict the up and down movement of the disk shaft 342, the first connecting plate 310, the connecting gear 320, and the rotating disk 341, so that the rotating disk 341 and the connecting gear 320 can only rotate around the disk, and the first connecting plate 310 can only move relative to the disk shaft 342 (the disk shaft 342 moves along the moving groove 312).

[0051] Reference Figure 2 In a further embodiment of the present invention, a portion of the circumferential surface of the drive gear has teeth, while the other portion is a smooth surface. Two drive gears are provided, connected by a drive shaft 343, and symmetrically arranged on the drive shaft 343, as shown below. Figure 2 In the state shown, when the teeth of one drive gear are facing upwards, the teeth of the other drive gear are facing downwards.

[0052] A rotating disk 341 is rotatably positioned below two drive gears. The rotating disk 341 has a plurality of disk teeth evenly distributed along its circumference. Specifically, refer to... Figure 1 The two drive gears are located on the left and right sides of the mounting bracket 130, respectively. When one of the drive gears (such as...) Figure 1 When some teeth of the right-hand drive gear mesh with the teeth of the rotating disk 341 on the right side, the teeth of the other drive gear (left-hand drive gear) separate from the rotating disk 341.

[0053] The right drive gear rotates clockwise, causing the rotating disk 341 to rotate forward, moving the drive rack 330 and the first connecting plate 310 forward. The left drive gear also rotates clockwise. When the teeth of the right drive gear rotate to the point where they separate from the rotating disk 341, the teeth of the left drive gear begin to mesh with the disk teeth on the left side of the rotating disk 341. The left drive gear continues to rotate clockwise, but at this time the rotating disk 341 will turn in reverse, and the drive rack 330 and the first connecting plate 310 will move backward until the left drive gear separates from the rotating disk 341, the right drive gear begins to mesh, and the rotating disk 341 rotates in a cycle.

[0054] With this configuration, the two drive gears only need to rotate continuously in the same direction to drive the rotating disk 341 to rotate alternately in the forward and reverse directions; that is, only one first motor 160 needs to be set up, which is connected to the drive shaft 343, to achieve the purpose of the rotating component 340 driving the connecting gear 320 to rotate continuously in different directions.

[0055] Reference Figure 2 In a further embodiment of the present invention, the driving gear is a sector gear, and the two driving gears are a first gear 344 (right driving gear) and a second gear 345 (left driving gear). During one revolution of the driving gear, the rotating disk 341 has three states: the first state of meshing with the first gear 344 (e.g., ...). Figure 1 As shown), the second state (as shown) is separated from both the first gear 344 and the second gear 345. Figure 3 As shown), the third state of engagement with the second gear 345 (as shown). Figure 6 (As shown).

[0056] Reference Figure 1 When the rotating disk 341 is in the first state, the first gear 344 meshes with the rotating disk 341, the rotating disk 341 rotates clockwise, and the flattening component 200 moves forward and flattens the printed material; see reference. Figure 3 When the rotating disk 341 is in the second state, the first gear 344 is disengaged from the rotating disk 341, while the second gear 345 is not yet engaged with the rotating disk 341. The rotating disk 341 stops rotating, and the flattening member 200 stops moving. (Refer to...) Figure 6 When the rotating disk 341 is in the third state, the second gear 345 meshes with the rotating disk 341, the rotating disk 341 reverses, and the flattening member 200 moves backward to reset.

[0057] If the driving gear is a half gear, then the second state is not available. When the first gear 344 meshes with the rotating disk 341, the second gear 345 disengages from the rotating disk 341; when the second gear 345 meshes with the rotating disk 341, the first gear 344 disengages from the rotating disk 341. However, since the moving structure 300 in this embodiment needs to cooperate with the lifting structure 400, the flattening member 200 will rise and fall during the movement of the first connecting plate 310. Therefore, a sector gear is selected. When the flattening member 200 needs to rise and fall, both the first gear 344 and the second gear 345 disengage from the rotating disk 341, the rotating disk 341 stops rotating, and the flattening member 200 no longer moves, only performing a rising and falling motion.

[0058] Reference Figure 4 In some specific embodiments of the present invention, the lifting structure 400 includes a second connecting plate 410 and a lifting assembly 420. The second connecting plate 410 is liftably connected to the lower part of the first connecting plate 310, and the flattening member 200 is fixedly installed below the first connecting plate 310. The lifting assembly 420 is connected to the second connecting plate 410 and is used to drive the second connecting plate 410 to lift and lower, thereby driving the flattening member 200 to lift and lower.

[0059] Specifically, the flattening component 200 includes a connecting rod 210 and a roller 220. The upper end of the connecting rod 210 is connected to the bottom surface of the first connecting plate 310, and the roller 220 is rotatably mounted on the lower end of the connecting rod 210. In this embodiment, the first connecting plate 310 is provided with two flattening components 200 in the front-back direction, which can increase the effective area of ​​the flattening component 200 and improve the flattening efficiency.

[0060] Reference Figure 2 In a further embodiment of the present invention, the lifting assembly 420 includes a lifting top block 422 and a cam 421. The lifting top block 422 is connected to the second connecting plate 410. The cam 421 is rotatably mounted on the frame 100 and located below the lifting top block 422. The cam 421 has a long shaft end and a short shaft end. During the rotation of the cam 421, when the long shaft end of the cam 421 abuts against the lifting top block 422, the cam 421 lifts the lifting top block 422, causing the second connecting plate 410 to rise. When the long shaft end separates from the lifting top block 422, the lifting top block 422 and the second connecting plate 410 descend.

[0061] Specifically, during the flattening operation of this device, the drive gear and cam 421 remain rotating continuously. (Refer to...) Figure 5 When the short shaft end of cam 421 abuts against the lifting top block 422, the lifting top block 422 is in its lowest position, and the flattening part 200 descends to press the printed material firmly. In such cases... Figure 5In the state shown, the first gear 344 is about to disengage from the rotating disk 341, while the second gear 345 has not yet engaged with the rotating disk 341. Thus, the rotating disk 341 enters the second state, and the rotating disk 341 stops rotating, and the flattening member 200 stops moving. At this time, the cam 421 rotates until its short shaft end separates from the lifting block 422, and its long shaft end gradually approaches the lifting block 422, lifting the lifting block 422 upward, and the flattening member 200 begins to rise. When the second gear 345 rotates to the point where it begins to engage with the rotating disk 341, the rotating disk 341 enters the third state, rotating in the opposite direction, and the flattening member 200 rises while simultaneously moving backward to reset.

[0062] Reference Figure 8 When the long shaft end of cam 421 abuts against the lifting block 422, the lifting block 422 is in its highest position, and the flattening part 200 separates from the printed matter; in such cases... Figure 8 In the state shown, the second gear 345 is about to disengage from the rotating disk 341, while the first gear 344 has not yet engaged with the rotating disk 341. The rotating disk 341 is back in the second state, the rotating disk 341 stops rotating, and the flattening component 200 stops moving. At this time, the cam 421 rotates until its long shaft end separates from the lifting top block 422, and its short shaft end gradually approaches the lifting top block 422. The lifting top block 422 moves downward, and the flattening component 200 begins to descend. When the first gear 344 rotates to the point where it begins to engage with the rotating disk 341, the rotating disk 341 enters the first state and rotates in the positive direction. As the flattening component 200 descends, it begins to move forward, pushing away the wrinkles on the printed material.

[0063] Reference Figure 4 In a further embodiment of the present invention, an elastic element 430 is connected between the second connecting plate 410 and the first connecting plate 310. When the long shaft end abuts against the lifting top block 422, the lifting top block 422 rises and the elastic element 430 is compressed. When the long shaft end separates from the lifting top block 422, the elastic element 430 stretches and resets, driving the lifting top block 422 to descend.

[0064] Specifically, the elastic element 430 is a spring, as shown in the reference. Figure 2A guide rod 431 is connected to the second connecting plate 410, and a matching guide hole 311 is provided on the first connecting plate 310. The second connecting plate 410 is mounted below the first connecting plate 310 via the guide rod 431. A spring is wound around the guide rod 431, with its upper end abutting against the first connecting plate 310 and its lower end abutting against the second connecting plate 410. When the long shaft end of the cam 421 abuts against the lifting block 422, the lifting block 422 drives the second connecting plate 410 to rise, the guide rod 431 moves upward along the guide hole 311, and the spring is compressed. When the cam 421 rotates to the point where its long shaft end separates from the lifting block 422, the upward force on the spring gradually decreases, the spring gradually stretches and rebounds, driving the second connecting plate 410 and the lifting block 422 to descend, and the guide rod 431 moves downward along the guide hole 311.

[0065] The guide rod 431 provides guidance for the lifting and lowering of the second connecting plate 410. In order to ensure the smooth lifting and lowering of the second connecting plate 410, four guide rods 431 are provided, which are respectively connected to the four corners of the second connecting plate 410. The first connecting plate 310 is provided with four guide holes 311.

[0066] Reference Figures 2 to 3 In a further embodiment of the present invention, the second connecting plate 410 is provided with a clearance groove 411, which extends through the second connecting plate 410 in a left-right direction. The lifting top block 422 is inserted into the clearance groove 411, and both ends of the lifting top block 422 are movably connected to the frame 100 and can be raised and lowered relative to the frame 100.

[0067] Specifically, the cam 421 is rotatably mounted inside the bracket 110 and located above the worktable 140; the lifting block 422 is located above the cam 421, with the middle part of the lifting block 422 passing through the clearance groove 411, and movable shafts 423 are installed on the left and right sides; the bracket 110 is provided with a movable groove 111 through which the movable shaft 423 can pass, and the movable groove 111 extends vertically to allow the movable shaft 423 to rise and fall; when the long shaft end of the cam 421 abuts against the lifting block 422, the movable shaft 423 is located at the top of the movable groove 111, and when the short shaft end of the cam 421 abuts against the lifting block 422, the movable shaft 423 is located at the bottom of the movable groove 111.

[0068] Furthermore, the height of the clearance groove 411 matches the height of the lifting block 422, so that the lifting block 422 can drive the second connecting plate 410 to rise and fall when it rises and falls. Under the cooperation of the movable shaft 423 and the movable groove 111, the lifting block 422 can move up and down, but cannot move back and forth. Therefore, when the moving structure 300 drives the second connecting plate 410 to move, the lifting block 422 remains stationary relative to the worktable 140, but moves along the clearance groove 411 relative to the second connecting plate 410.

[0069] Reference Figure 1 , Figure 3 In some specific embodiments of the present invention, the clamping structure 150 includes a clamping plate 151 and a lifting member 152. The clamping plate 151 is rotatably mounted on the frame 100 and located on one side of the worktable 140. The lifting member 152 is connected to the end of the clamping plate 151 away from the worktable 140 and is used to drive the clamping plate 151 to rotate so as to press the printed matter onto the worktable 140.

[0070] Specifically, the lifting component 152 can be a telescopic cylinder, and the clamping plate 151 is hinged to the base 120 of the frame 100 via a connecting shaft 153. The movable end of the telescopic cylinder is connected to one side of the clamping plate 151. When the movable end extends upward, it drives the clamping plate 151 to rotate downward around the connecting shaft 153. When it rotates to abut against the worktable 140, it can press the printed matter. After the printed matter is flattened, the movable end retracts downward, driving the clamping plate 151 to rotate upward around the connecting shaft 153 until it separates from the printed matter, allowing the printed matter to be removed. In this embodiment, a clamping structure 150 is provided on each of the left and right sides of the worktable 140 to clamp the left and right sides of the printed matter.

[0071] Furthermore, since both the drive gear and the cam 421 need to rotate, they both need to be connected to a rotary drive component. Since the rotation cycles of the drive gear and the cam 421 are the same, the drive gear and the cam 421 can be connected by transmission structure 170. By controlling the rotation of the drive gear with motor 160, the cam 421 can be driven to rotate synchronously, realizing the cooperation between the moving structure 300 and the lifting structure 400, and controlling the switching of the state of the flattening component 200.

[0072] Reference Figure 4 The transmission structure 170 is a pulley structure, including a first pulley 171, a second pulley 172, and a transmission belt 173. The first pulley 171 is mounted on the drive shaft 343, and the second pulley 172 is mounted on the axle of the cam 421. The first pulley 171 and the second pulley 172 are connected by the transmission belt 173. The motor 160 controls the drive shaft 343 to rotate, which drives the first pulley 171 to rotate. The first pulley 171 drives the second pulley 172 to rotate through the transmission belt 173, thereby driving the cam 421 to rotate synchronously.

[0073] The usage process of this invention is as follows:

[0074] Reference Figure 5 When the motor 160 starts, it drives the gear to rotate; the first gear 344 rotates until it meshes with the rotating disk 341, the rotating disk 341 rotates (forward), which drives the gear to rotate, the gear drives the rack 330 to move forward, and the flattening part 200 moves forward; at this time, the short shaft end of the cam 421 abuts against the lifting top block 422, and the flattening part 200 presses the printed matter firmly on the worktable 140.

[0075] As the drive gear continues to rotate, the first gear 344 separates from the rotating disk 341, and the second gear 345 has not yet meshed with the gear. The rotating disk 341 stops rotating, and the flattening part 200 does not move. At this time, the cam 421 rotates clockwise from the short shaft end to the long shaft end, lifting the lifting block 422, and the flattening part 200 rises and leaves the printed matter.

[0076] Reference Figure 8 The drive gear continues to rotate, and the second gear 345 rotates until it meshes with the rotating disk 341. The rotating disk 341 rotates (reverses), which drives the gear to rotate. The gear drives the rack 330 to move backward, and the flattening part 200 moves backward. At this time, the long shaft end of the cam 421 abuts against the lifting top block 422, and the flattening part 200 remains suspended.

[0077] The drive gear continues to rotate, the second gear 345 separates from the rotating disk 341, the first gear 344 has not yet meshed with the gear, the rotating disk 341 stops rotating, and the flattening part 200 does not move; at this time, the cam 421 turns from the long shaft end to the short shaft end, the lifting top block 422 gradually descends, and the flattening part 200 descends to press down on the printed matter.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A flattening device for printing, characterized in that, include: The frame (100) has a worktable (140) below for placing printed materials. The worktable (140) is provided with a clamping structure for clamping and fixing the printed materials. A flattening component (200) is movably disposed above the worktable (140). The flattening component (200) is connected to a moving structure (300) and a lifting structure (400). The moving structure (300) is used to drive the flattening component (200) to reciprocate, and the lifting structure (400) is used to drive the flattening component (200) to move up and down. The flattening component (200) has a flattening state and a reset state. The moving structure (300) cooperates with the lifting structure (400) to control the switching of the state of the flattening component (200) and achieves flattening of the printed matter through multiple switching. When the flattening component (200) switches to the flattening state, the lifting structure (400) drives the flattening component (200) to press down on the printed matter, and the moving structure (300) drives the flattening component (200) to move along the surface of the worktable (140) to flatten and shape the printed matter; when the flattening component (200) switches to the reset state, the lifting structure (400) drives the flattening component (200) to rise and separate from the printed matter, and the moving structure (300) drives the flattening component (200) to move and reset. The movable structure (300) includes a first connecting plate (310), a connecting gear (320), a rack (330), and a rotating assembly (340). The first connecting plate (310) is movably mounted on the frame (100). The rack (330) is fixedly mounted on the first connecting plate (310). The connecting gear (320) is movably mounted on the first connecting plate (310) and meshes with the rack (330). The rotating assembly (340) is connected to the connecting gear (320) to control the continuous directional rotation of the connecting gear (320). The rotation of the connecting gear (320) drives the rack (330) to reciprocate, and drives the first connecting plate (310) and the flattening member (200) to reciprocate. The rotating assembly (340) includes a drive gear and a rotating disk (341). The drive gear is rotatably mounted on the frame (100). The rotating disk (341) is coaxially connected to the connecting gear (320) and is connected to the drive gear in a transmission manner. The rotation of the drive gear can drive the rotating disk (341) to rotate continuously in different directions, thereby controlling the continuous rotation of the connecting gear (320). The drive gear has teeth on a portion of its circumferential surface. There are two drive gears, which are coaxially connected and symmetrically arranged. The rotating disk (341) has a plurality of disk teeth evenly distributed along the circumferential direction. When a portion of the teeth of one of the drive gears meshes with the rotating disk (341), the other drive gear separates from the rotating disk (341). The two drive gears rotate continuously in the same direction. The rotating disk (341) is driven to rotate continuously in different directions. The driving gear is a sector gear, and the two driving gears are the first gear (344) and the second gear (345). During one revolution of the driving gear, the rotating disk (341) has a first state of meshing with the first gear (344), a second state of being separated from both the first gear (344) and the second gear (345), and a third state of meshing with the second gear (345). When the rotating disk (341) is in the first state, the rotating disk (341) rotates forward, and the flattening member (200) moves and flattens the printed matter. When it is in the second state, the rotating disk (341) stops rotating, and the flattening member (200) stops moving. When it is in the third state, the rotating disk (341) rotates in reverse, and the flattening member (200) moves back to its original position. The lifting structure (400) includes a second connecting plate (410) and a lifting assembly (420). The second connecting plate (410) is liftably connected to the lower part of the first connecting plate (310), and the flattening component (200) is fixedly installed below the second connecting plate (410). The lifting assembly (420) is connected to the second connecting plate (410) and is used to drive the second connecting plate (410) to lift, thereby driving the flattening component (200) to lift. The lifting assembly (420) includes a lifting top block (422) and a cam (421). The lifting top block (422) is connected to the lower part of the first connecting plate (310) and the cam (421). The second connecting plate (410) is connected, and the cam (421) is rotatably mounted on the frame (100) and located below the lifting block (422). During the rotation of the cam (421), when the long shaft end of the cam (421) abuts against the lifting block (422), the cam (421) lifts the lifting block (422), causing the lifting block (422) and the second connecting plate (410) to rise. When the long shaft end separates from the lifting block (422), the lifting block (422) and the second connecting plate (410) descend. The second connecting plate (410) is provided with a clearance groove (411), and the lifting top block (422) passes through the clearance groove (411). The two ends of the lifting top block (422) are movably connected to the frame (100) and can be raised and lowered relative to the frame (100). The lifting top block (422) can drive the second connecting plate (410) to rise and fall. When the second connecting plate (410) moves, the lifting top block (422) can move along the clearance groove (411).

2. The printing flattening device according to claim 1, characterized in that: An elastic element (430) is connected between the second connecting plate (410) and the first connecting plate (310). When the long shaft end abuts against the lifting block (422), the lifting block (422) rises and the elastic element (430) is compressed. When the long shaft end separates from the lifting block (422), the elastic element (430) stretches and resets, driving the lifting block (422) to descend.

3. The printing flattening device according to claim 1, characterized in that: The clamping structure (150) includes a clamping plate (151) and a lifting member (152). The clamping plate (151) is rotatably mounted on the frame (100) and located on one side of the worktable (140). The lifting member (152) is connected to the end of the clamping plate (151) away from the worktable (140) and is used to drive the clamping plate (151) to rotate so as to press the printed matter onto the worktable (140).

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