Paper laying device for post-press equipment

Abstract

The utility model relates to a paper laying device for post-press equipment, which comprises a control assembly and a fixing plate detachably fixed with the post-press equipment, a paper suction assembly is mounted on the fixing plate, and a paper suction driving assembly for driving the paper suction assembly to feed paper is further arranged in front of the paper suction assembly and the fixing plate. The paper suction driving assembly is in telecommunication connection with the control assembly, a paper supporting table is arranged on the lower side of the paper suction assembly, the paper supporting table and the fixing plate relatively slide in the horizontal direction in the direction different from the paper feeding direction of the paper laying device, and the control assembly is in telecommunication connection with a control device of the post-printing equipment. The paper supporting table is provided with an empty paper detection assembly used for detecting whether paper exists in the paper supporting table or not, the empty paper detection assembly is in telecommunication connection with the control assembly, the fixing plate is further provided with a paper supply driving assembly used for driving the paper supporting drawer to move in the vertical direction, and the paper supply driving assembly is in telecommunication connection with the control assembly. The paper laying device has the effect of intelligently controlling the paper laying device.

Description

Technical Field

[0001] This application relates to the technical field of post-press equipment, and in particular to a paper-laying device for post-press equipment. Background Technology

[0002] Die-cutting machines are essential equipment in post-printing packaging processing. They are mainly used for die-cutting (full cut, half cut), creasing, hot stamping, and lamination of various non-metallic materials, self-adhesive labels, EVA, double-sided tape, electronic components, and mobile phone pads. Die-cutting machines utilize steel blades, metal molds, and steel wire (or templates carved from steel plates) to apply pressure through an impression plate, cutting printed materials or cardboard into specific shapes. Some die-cutting machines also feature automatic waste removal. After a full cut die-cut, the waste removal function collects the die-cut box-shaped sheets into a pile, and the remaining waste can be discharged from the equipment.

[0003] To facilitate counting and ensure the stability of stacked finished products, paper is usually placed on top of the finished products after a certain number have been stacked. This ensures that the finished products are stacked stably, increases friction, and prevents collapse or mixing caused by tilting or sliding. At the same time, the cardboard or paper, as a cushioning layer, can also effectively reduce collision damage to the finished products during transportation or stacking.

[0004] In related technologies, paper-laying devices are mostly manual or semi-automatic. Manual devices have low efficiency, while semi-automatic devices, although simple in structure, are cumbersome to adjust, prone to errors and misalignment, and susceptible to paper jams or over-laying at high speeds, resulting in a high failure rate. Ensuring the usability of the paper-laying device requires manual judgment to determine its stable operation and successful paper laying. This necessitates a large workspace for installing the existing device and for easy observation and operation by staff.

[0005] The aforementioned technologies suffer from drawbacks such as high manual intervention, low work efficiency, and high failure rate. Utility Model Content

[0006] In order to reduce manual intervention, improve work efficiency, and reduce failure rate, this application provides a paper laying device for post-press equipment.

[0007] The paper-laying device for post-press equipment provided in this application adopts the following technical solution:

[0008] A paper-laying device for post-press equipment includes a control component and a fixed plate detachably fixed to the post-press equipment. A paper-feeding component is mounted on the fixed plate, and a paper-feeding drive component is also provided to drive the paper-feeding component to pick up and feed paper. The paper-feeding drive component is electrically connected to the control component. A paper-supporting platform is provided under the paper-feeding component, and the paper-supporting platform slides relative to the fixed plate. A blank sheet detection component is provided on the paper-supporting platform to detect whether there is paper in the paper-supporting platform, and the blank sheet detection component is electrically connected to the control component. A paper-feeding drive component is also provided on the fixed plate to drive the paper-supporting drawer to move vertically, and the paper-feeding drive component is electrically connected to the control component.

[0009] Preferably, the paper support platform and the fixing plate slide and cooperate in a direction opposite to the paper feeding direction of the paper laying device and in a vertical direction, respectively, and the paper feeding drive component drives the paper support platform to move in the vertical direction; the control component is electrically connected to the control device of the post-printing equipment.

[0010] Preferably, the paper feeding drive assembly includes a drive cylinder, which is electrically connected to a control assembly. The cylinder body of the drive cylinder is hinged to a fixed plate. A connecting rod is hinged to the end of the piston rod of the drive cylinder. The connecting rod is horizontally arranged, and a swing plate is provided on the connecting rod. The axis of the swing plate is rotatably connected to the fixed plate in the horizontal direction. One end of the swing plate is hinged to the connecting rod, and the other end is hinged to a connecting rod. At least two sets of swing plates and connecting rods are spaced apart along the length of the connecting rod. A transverse slider is provided on the side of the paper support table near the fixed plate in the horizontal direction. A transverse guide rail is embedded on the transverse slider. The transverse guide rail is horizontally arranged. The transverse slider and the transverse guide rail slide relative to each other in the opposite direction to the paper feeding direction. There is a certain gap between the transverse guide rail and the fixed plate. The lower end of the connecting rod is hinged to the side of the transverse guide rail away from the transverse slider. A sliding assembly for guiding the vertical stroke of the transverse guide rail is also provided between the transverse guide rail and the fixed plate.

[0011] Preferably, the paper feeding drive assembly includes a drive cylinder, which is electrically connected to a control assembly. The cylinder body of the drive cylinder is hinged to a fixed plate. A connecting rod is hinged to the end of the piston rod of the drive cylinder. The connecting rod is horizontally arranged, and a swing plate is provided on the connecting rod. The axis of the swing plate is rotatably connected to the fixed plate in the horizontal direction. One end of the swing plate is hinged to the connecting rod, and the other end is hinged to a connecting rod. At least two sets of swing plates and connecting rods are spaced apart along the length of the connecting rod. A transverse slider is provided on the side of the paper support table near the fixed plate in the horizontal direction. A transverse guide rail is embedded on the transverse slider. The transverse guide rail is horizontally arranged. The transverse slider and the transverse guide rail slide relative to each other in the opposite direction to the paper feeding direction. There is a certain gap between the transverse guide rail and the fixed plate. The lower end of the connecting rod is hinged to the side of the transverse guide rail away from the transverse slider. A sliding assembly for guiding the vertical stroke of the transverse guide rail is also provided between the transverse guide rail and the fixed plate.

[0012] Preferably, the blank detection component is located at the bottom of the paper support platform, and a protective cover is provided on the outside of the two fixed plates. The protective cover covers the entire outside of the device and is open on both sides along the length of the paper support platform. A detachable locking component is provided between the bottom of the paper support platform and the protective cover.

[0013] Preferably, a brush is also fixed on the paper drawer. After the paper suction assembly picks up the top layer of paper, the brush contacts the edge of the paper. When the paper suction assembly and the paper tray move relative to each other in the vertical direction, the brush slides relative to the paper.

[0014] Preferably, a brush is also fixed on the paper drawer. After the paper suction assembly picks up the top layer of paper, the brush contacts the edge of the paper. When the paper suction assembly and the paper tray move relative to each other in the vertical direction, the brush slides relative to the paper.

[0015] Preferably, the paper support platform is further provided with a limiting component for adjusting the applicable paper size; the limiting component includes paper stop blocks, one of each of the two mutually perpendicular directions in the horizontal direction of the paper, and the paper stop blocks slide relative to the paper support platform along the corresponding horizontal direction; the paper suction drive component includes a drive motor and a mounting frame, the mounting frame slides and cooperates with the fixed plate along the paper feeding direction of the device, the drive motor housing is fixed on the fixed plate, the drive motor output shaft is provided with a transmission structure, the drive motor output shaft drives the mounting frame to slide through the transmission structure, and the suction end of the paper suction component is mounted on the mounting frame.

[0016] Preferably, a slide rail seat is fixed on the fixed plate, and a slide rail strip is fixed on the mounting bracket. The slide rail strip is embedded in the slide rail seat and slides along the paper feeding direction of the device. A transmission shaft is coaxially fixed on the output shaft of the drive motor. The axis of the transmission shaft is perpendicular to the paper feeding direction of the device in the horizontal plane. The transmission structure includes a drive gear, a transmission gear, and a rack. The drive gear is coaxially fixed on the transmission shaft and meshes with the transmission gear. The transmission gear is rotatably connected to the fixed plate around its own axis. The length direction of the rack is parallel to the paper feeding direction of the device. The rack is fixed on the slide rail strip, and the transmission gear meshes with the rack.

[0017] Preferably, the fixing plate is further provided with a position detection component for detecting the relative position between the mounting bracket and the fixing plate. The position detection component is electrically connected to the control component. When the position detection component detects that the mounting bracket is about to reach the limit position, it outputs a limit signal to the control component. The control component receives the limit signal and outputs a second control command based on the limit signal. The paper suction drive component receives the second control command and stops the mounting bracket from moving.

[0018] Preferably, the paper suction assembly includes a mounting rod fixed to a mounting frame, a suction nozzle fixed to the mounting rod, a vacuum generator fixed to the mounting frame, the suction nozzle and the vacuum generator connected via an air pipe, a first solenoid valve fixed to the mounting plate, the first solenoid valve and the vacuum generator being electrically connected, multiple suction nozzles spaced apart along the length of the mounting rod, and multiple suction nozzles spaced apart along the paper feeding direction of the device on the mounting frame; the suction nozzle is configured as a retractable structure or includes a retractable structure.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. By setting up control components, height detection components, and empty sheet detection components, this application can reduce the involvement of staff in the paper-laying process, improve the level of intelligence, and help improve work efficiency;

[0021] 2. The sliding paper support table and blank sheet detection component work together to facilitate timely paper replenishment by staff, which helps reduce paper leakage and downtime, further improving work efficiency and reducing production costs;

[0022] 3. The coordination between the height detection component and the paper feeding drive component helps reduce the occurrence of the paper suction component running empty and failing to lay paper properly, thus reducing wasted motion.

[0023] 4. The brush helps to reduce the occurrence of double sheets being adsorbed due to electrostatic adsorption, thus reducing waste caused by double sheets being laid during the laying process; or reducing the occurrence of excess paper falling into the equipment during movement due to insufficient electrostatic adsorption or other reasons, which could cause the machine to jam.

[0024] 5. The combination of the retractable suction nozzle structure and the paper feeding drive assembly can reduce the possibility of the paper laying device running dry at the beginning of operation.

[0025] 6. The control components are connected to the control devices within the post-press equipment via electrical or signal connections, which facilitates the control of the entire equipment and improves its overall intelligence. Attached Figure Description

[0026] Figure 1 This is an isometric view of the main structure of the paper-laying device in the embodiments of this application;

[0027] Figure 2 This is a side view of the paper-laying device without a protective cover in an embodiment of this application;

[0028] Figure 3 This is an enlarged view of a portion of the structure of the paper-laying device and a fixed plate on one side without a protective cover in the embodiments of this application;

[0029] Figure 4 This is a bottom view of the paper-laying device without a protective cover in the embodiments of this application;

[0030] Figure 5 This is a front view of the paper-laying device in an embodiment of this application.

[0031] Reference numerals: 1. Mounting block; 2. Fixing plate; 21. Height detection component; 22. Slide rail seat; 23. First solenoid valve; 24. Vertical slider; 25. Limit stop; 26. Second solenoid valve; 3. Paper drawer; 31. Paper tray; 32. Brush; 4. Paper feeding drive component; 41. Drive cylinder; 42. Connecting rod; 43. Swing plate; 44. Connecting rod; 45. Horizontal guide rail; 451. Vertical guide rail; 46. Empty sheet detection component; 5. Locking component; 6. Paper stop block; 7. Paper suction drive component; 71. Drive motor; 72. Transmission structure; 721. Drive shaft; 722. Drive gear; 723. Driven gear; 724. Rack; 8. Mounting bracket; 81. Vacuum generator; 82. Slide rail; 83. Support plate; 9. Paper suction component; 91. Mounting rod; 92. Suction nozzle; 100. Protective cover. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a paper-laying device for post-press equipment.

[0034] See Figures 1-2 The paper-laying device for post-press equipment includes a protective cover 100. A fixing plate 2 is installed inside the protective cover 100. The fixing plate 2 is vertically positioned, and a mounting block 1 is fixed to one end of the fixing plate 2 along its length. The mounting block 1 is detachably fixed to the post-press equipment. The length direction of the fixing plate 2 is parallel to the paper feeding direction of the device, and the thickness direction of the fixing plate 2 is perpendicular to the paper feeding direction on a horizontal plane. Two fixing plates 2 are spaced apart along their thickness direction, and each fixing plate 2 is fixed opposite to the protective cover 100. The protective cover 100 is open on both sides along the paper feeding direction. A paper-supporting drawer 3 is installed between the two fixing plates 2. The paper-supporting drawer 3 is horizontally positioned and slides along the paper feeding direction away from the post-press equipment, along with the two fixing plates 2. During operation, the paper to be laid is stacked in the paper-supporting drawer 3. Paper supply drive components 4 are also installed on the opposite sides of the two fixing plates 2. The two paper supply drive components 4 simultaneously drive the paper-supporting drawer 3 to slide vertically relative to the two fixing plates 2. A paper-feeding assembly 9 is installed on the upper side of the paper drawer 3, and a paper-feeding drive assembly 7 is installed between the two fixed plates 2. The paper-feeding drive assembly 7 drives the paper-feeding assembly 9 to slide into the post-press equipment along the paper feeding direction, which is set as the paper feeding direction of the device. The paper-laying device is also equipped with a control assembly, which is electrically connected to the paper feeding drive assembly 4, the paper-feeding assembly 9, and the paper-feeding drive assembly 7. The paper-laying device can be set on any side of the entire post-press equipment and is installed on the post-press equipment via two mounting blocks 1, corresponding to the workstation that needs paper laying. In actual operation, in order to reduce the impact on subsequent workstations, the paper-laying device is generally installed on the drive side of the post-press equipment. The operator can pull out the paper drawer 3 in the opposite direction to the paper feeding direction, stack the paper in the paper drawer 3, push the paper drawer 3 to the underside of the paper-feeding assembly 9, the paper-feeding assembly 9 picks up the top layer of paper, the paper-feeding drive assembly 7 drives the paper-feeding assembly 9 to move into the post-press equipment, release the paper, and complete the paper laying.

[0035] The control component can be configured as a PLC integrated module including a processor and components such as a power supply, control screen, and buttons electrically connected to the processor. It is connected to the control device of the post-press equipment via circuit or wireless signal and can be linked with other devices in the post-press equipment to achieve fully automatic paper laying in the post-press equipment.

[0036] See Figures 2-4The paper tray drawer 3 includes a paper tray 31, which is horizontally positioned between two fixed plates 2. The paper tray 31 has a certain gap between itself and the two fixed plates 2 on both sides along the thickness direction of the fixed plates 2. A transverse slider is fixed to one side of the paper tray 31 along the thickness direction of the fixed plates 2. The paper feeding drive assembly 4 includes a transverse guide rail 45, which is embedded in the transverse slider. The transverse guide rail 45 is positioned between adjacent fixed plates 2 and the paper tray 31. The transverse slider and the transverse guide rail 45 slide and cooperate in a direction parallel to and opposite to the paper feeding direction. A certain gap exists between the transverse guide rail 45 and the fixed plates 2. One set of transverse guide rail 45 and one set of transverse slider are provided on each side of the paper tray 31 along the thickness direction of the fixed plates 2.

[0037] The paper feeding drive assembly 4 includes a drive cylinder 41, the cylinder body of which is fixed to the side of the fixed plate 2 opposite to the paper support table 31 in the thickness direction. A second solenoid valve 26 is also installed on the fixed plate 2, which electrically connects the drive cylinder 41 to the control assembly. The extension and retraction direction of the piston rod of the drive cylinder 41 is parallel to the length direction of the fixed plate 2. A connecting rod 42 is provided on the piston rod of the drive cylinder 41, one end of which is hinged to the end of the piston rod of the drive cylinder 41. A swing plate 43 is also provided on the connecting rod 42. The swing plate 43 is L-shaped, and its central axis is rotatably connected to the fixed plate 2 along the thickness direction of the fixed plate 2. One end of the swing plate 43 is rotatably connected to the connecting rod 42 along the thickness direction of the fixed plate 2, and the other end is rotatably connected to a connecting rod 44. The length direction of the connecting rod 44 is parallel to the height direction of the fixed plate 2, and the rotation axis between the connecting rod 44 and the swing plate 43 is parallel to the thickness direction of the fixed plate 2. One end of the connecting rod 44 is rotatably connected to the swing plate 43, and the other end is rotatably connected to the side of the corresponding transverse guide rail 45 facing away from the transverse slider. At least two sets of swing plates 43 and connecting rods 44 are spaced apart along the length of the connecting rod 42. The control component controls the piston rod of the drive cylinder 41 to extend and retract via the second solenoid valve 26, thereby causing the connecting rod 42 to move in the extension / retraction direction. The connecting rod 42 causes multiple swing plates 43 to rotate around their own axes, and the swing plates 43 cause the connecting rods 44 to move up and down, thereby causing the transverse guide rail 45 to move up and down. One paper feeding drive assembly 4 is provided on each side of the paper support table 31. The control component synchronously controls the two second solenoid valves 26 in the two paper feeding drive assemblies 4, thereby synchronously controlling the up and down sliding of multiple connecting rods 44, so that the paper support table 31 moves smoothly up and down.

[0038] A sliding assembly is also provided on the side of any fixed plate 2 facing away from the paper tray 31. The sliding assembly includes a vertical slider 24 and a vertical guide rail 451. The vertical slider 24 is vertically arranged along its length. The vertical guide rail 451 is fixed to the side of the horizontal slider facing away from the paper tray 31 on that side. The vertical guide rail 451 is embedded in the vertical slider 24 and slides vertically in cooperation with it. Multiple clearance grooves are provided on the fixed plate 2 to allow clearance between the vertical guide rail 451 and the connecting rod 44. Multiple sets of sliding assemblies can be provided on any side of the horizontal guide rail 45 and the corresponding fixed plate 2.

[0039] The bottom of the paper tray 31 is also equipped with a blank sheet detection component 46. The blank sheet detection component 46 can be set as a detection sensor such as a laser sensor or an infrared sensor. A through hole is provided through the bottom of the paper tray 31. The sensor of the laser sensor or infrared sensor is placed in the through hole, pointing upwards. It detects whether there is a blank sheet by detecting the sensing distance or detecting light reflection. The blank sheet detection component 46 is electrically connected to the control component. When the blank sheet detection component 46 detects that there is no paper on the paper tray 31, it outputs a paper shortage signal to the control component. The control component outputs a paper shortage reminder. The staff can understand the paper shortage situation in time through the control component and pull the side of the paper tray 31 away from the mounting block 1. The paper tray 31 slides relative to the two fixed plates 2 through the horizontal guide rail 45 and the horizontal slider, thereby replenishing the paper tray 31.

[0040] The paper tray 31 is also equipped with a limiting component, which includes a paper stop block 6. One paper stop block 6 is located on either side of the paper tray 31 along the paper feeding direction and slides along the paper feeding direction with the paper tray 31. Another paper stop block 6 is located on either side of the paper tray 31 along the thickness direction of the fixing plate 2 and slides along the thickness direction of the fixing plate 2. The underside of any paper stop block 6 can be locked to the paper tray 31 with bolts. This method allows operators to easily adjust different sizes of paper to fit the paper tray 31, while ensuring that the stacked paper does not shift during the operation of the paper laying device, thus preventing interference with subsequent paper suction and laying operations.

[0041] A locking component 5 is also provided between the paper tray 31 and the protective cover 100. The locking component 5 is located on the side of the paper tray 31 away from the mounting block 1. The locking component 5 can be set as a ball lock or other locking structure. When the paper tray 31 and the protective cover 100 are locked, the paper tray 31 can still slide relative to the protective cover 100 in the vertical direction. When the staff needs to replenish paper, they can unlock the locking component 5 and pull out the paper tray 31.

[0042] The paper suction drive assembly 7 includes a mounting frame 8 and a drive motor 71. A support plate 83 is fixed to one side of the mounting frame 8 near each of the two fixed plates 2. A slide rail 82 is fixed to one side of each support plate 83 facing away from each other. Slide rail seats 22 are fixed to the corresponding two fixed plates 2, with each slide rail 82 embedded within its corresponding slide rail seat 22. The mounting frame 8 slides along the paper feeding direction with the corresponding fixed plate 2 via the slide rails 82 and slide rail seats 22 on both sides. The drive motor 71 housing is fixed to the side of either fixed plate 2 facing away from the paper support table 31.

[0043] A transmission structure 72 is provided on the output shaft of the drive motor 71. The transmission structure 72 includes a transmission shaft 721, the axis of which is parallel to the thickness direction of the fixed plate 2. The transmission shaft 721 is coaxially fixed to the output shaft of the drive motor 71 and is positioned between two fixed plates 2, with both ends rotatably connected to the two fixed plates 2 respectively. Two driving gears 722 are also coaxially fixed to both ends of the transmission shaft 721. A driven gear 723 is also provided on the side of the two fixed plates 2 that are close to each other. The axis of any driven gear 723 is parallel to the axis of the driving gear 722, and any driven gear 723 is rotatably connected to the fixed plate 2 on the corresponding side. Any driving gear 722 meshes with the corresponding transmission gear. A rack 724 is also fixed to the upper side of each of the two support plates 83, and any rack 724 meshes with the corresponding transmission gear. The output shaft of the drive motor 71 rotates, driving the transmission shaft 721 to rotate. The transmission shaft 721 drives the drive gear 722, which, through the transmission gear and rack 724, causes the mounting bracket 8 to slide along the paper feeding direction. The drive motor 71 is electrically connected to the control component.

[0044] Each of the two fixed plates 2 has a limiting block 25 fixed on both sides along its length, with each limiting block 25 positioned at its extreme position on either side of the mounting frame 8 along the paper feeding direction. This method prevents the mounting frame 8 from exceeding its extreme position and colliding with the post-printing equipment.

[0045] A position detection component is also provided on either side of the fixed plate 2. The position detection component can be a detection sensor such as a proximity sensor or a photoelectric sensor, or a switch such as a contact switch or an electromagnetic switch. One position detection component is provided on each side of the two limit blocks 25 at both ends of the length direction of any fixed plate 2, where they are close to each other. When either position detection component detects that the mounting frame 8 is about to reach its limit position, it outputs a limit signal to the control component. The paper feeding drive component 4 receives the limit signal and outputs a second control command based on it. The drive motor 71 receives the second control command and stops the output shaft rotation, thereby reducing the possibility of the mounting frame 8 derailing.

[0046] See Figure 1 , Figure 2 , Figure 4The mounting frame 8 is equipped with a mounting rod 91, the length of which is parallel to the thickness of the fixing block. A sliding groove is provided on any support plate 83, and both ends of the mounting rod 91 are respectively embedded in the sliding grooves, sliding and engaging with the corresponding support plate 83 along the paper feeding direction. Both ends of the mounting rod 91 are detachably fixed to the support plates 83 on both sides using bolts and nuts.

[0047] A suction nozzle 92 is fixed to the mounting rod 91, and a vacuum generator 81 is also fixed to the mounting frame 8. A first solenoid valve 23 is also fixed to the fixing plate 2 on either side. The suction nozzle 92 is configured as a foldable flexible structure that can be adjusted according to negative or positive pressure. In other embodiments, an additional telescopic structure, such as a cylinder or electric telescopic structure, can be provided on the suction nozzle 92 to allow the lower end of the suction nozzle 92 to contact the upper side of the paper at a preset height. The suction nozzle 92 and the vacuum generator 81 are connected by a flexible hose. The vacuum generator 81 is electrically connected to the first solenoid valve 23, and the first solenoid valve 23 is electrically connected to the control component. The fixing member on the suction nozzle 92 can slide along the length of the mounting rod 91 and is fixed relative to the mounting rod 91 by bolts and nuts. Multiple suction nozzles 92 can be spaced apart on the mounting rod 91 along the length of the mounting rod 91, and multiple mounting rods 91 can be spaced apart on the mounting frame 8 along the paper feeding direction. The operator can change the number of mounting rods 91 and the number of suction nozzles 92 on any mounting rod 91 according to actual needs. In actual operation, the staff controls the vacuum generator 81 through the control component, so that multiple suction nozzles 92 generate positive and negative pressure at the same time, so that the suction nozzles 92 can pick up or release paper.

[0048] A brush 32 is also provided on the paper tray 31. The brush 32 is located on the side of the paper tray 31 opposite to the corresponding paper stop block 6 along the length of the mounting rod 91. After the paper suction assembly 9 picks up the top layer of paper, the brush 32 will contact the edge of the paper. As the paper suction assembly 9 slides vertically, the brush 32 will slide relative to the paper. This prevents the top and bottom layers of paper from being electrostatically attracted after the paper suction assembly 9 picks up the paper, thus preventing multiple sheets of paper from being laid out.

[0049] The operator installs the paper-laying device at the corresponding position on the post-printing equipment where paper needs to be laid, adjusting the number of mounting rods 91 and suction nozzles 92 to correspond to the amount of paper to be laid. The operator then unlocks the locking assembly 5, pulls out the paper support platform 31, stacks the paper to be laid on the platform 31, and adjusts the two paper-stopping blocks 6 so that they abut against the sides of the stacked paper. The operator pushes the paper support platform 31 so that it is positioned below the suction assembly 9 and locks the locking assembly 5. The control assembly controls two second solenoid valves 26 to control the extension and retraction of corresponding drive cylinders 41 and piston rods, thereby extending and retracting corresponding connecting rods 42. Each connecting rod 42, through multiple swing plates 43, controls multiple connecting rods 44 to slide vertically, thus moving the paper support platform 31 vertically upwards, allowing the highest layer of paper on the platform 31 to reach the preset position. Simultaneously, the control component, through the first solenoid valve 23, controls the vacuum generator 81 to generate negative pressure in each suction nozzle 92. Driven by this negative pressure or the retractable structure, any suction nozzle 92 picks up the top layer of paper. Then, to avoid any obstructions that the suction component might encounter when extending, the paper support platform 31 descends. When it is necessary to pick up the top layer of paper again, the paper support platform 31 moves upward, allowing the suction nozzle to pick up the paper.

[0050] The control component then controls the drive motor 71, causing its output shaft to rotate, which in turn rotates the transmission shaft 721. The transmission shaft 721 drives two drive gears 722, which mesh with corresponding transmission gears. These transmission gears mesh with corresponding racks 724, thereby moving the corresponding support plate 83 closer to the post-press equipment, extending it into the equipment, and reaching a preset position. The control component then controls the vacuum generator 81 via the first solenoid valve 23, creating positive pressure at each suction nozzle 92, causing the sucked paper to fall and be laid inside the post-press equipment. The control component then controls the drive motor 71 to reverse, causing the mounting frame 8 to retract via the transmission structure 72, returning it to its paper-sucking position. This process is repeated to complete the intelligent paper laying process.

[0051] In another preferred embodiment, see Figures 2-4An observation hole is also provided on either side of the fixed plate 2, extending through the fixed plate 2 along its thickness. A height detection component 21 is provided on the outer side of the fixed plate 2 away from the paper tray 31. The height detection component 21 can be a laser sensor or an infrared sensor, etc. The detection end of the height detection component 21 points to the upper side of the stacked papers on the paper tray 31 through the observation hole, and is used to measure the height of the topmost paper in the stacked papers on the paper tray 31. The height detection component 21 is electrically connected to the control component. In actual operation, after the paper suction component 9 picks up the topmost paper on the paper tray 31, the paper suction drive component 7 drives the paper suction component 9 to move the paper into the post-printing equipment. When the height detection component 21 detects that the height of the stacked paper on the paper tray 31 is lower than the preset value, it outputs a paper feeding signal to the control component. The control component receives the paper feeding signal and outputs a first control command based on the paper feeding signal. The two paper feeding drive components 4 simultaneously receive the first control command and drive the paper tray 31 to move upward, so that the paper suction component 9, which has been reset after the paper is put down, can continue to suck up the top layer of paper on the paper tray 31.

[0052] The operator installs the paper-laying device at the corresponding position on the post-printing equipment where paper needs to be laid, adjusting the number of mounting rods 91 and suction nozzles 92 to correspond to the amount of paper to be laid. The operator unlocks the locking assembly 5, pulls out the paper support platform 31, stacks the paper to be laid on the paper support platform 31, and adjusts the two paper stop blocks 6 so that they abut against the sides of the stacked paper. The operator pushes the paper support platform 31 so that it is positioned below the suction assembly 9 and locks the locking assembly 5. After the height detection assembly 21 detects that the height of the stacked paper on the paper support platform 31 is lower than the preset value, it outputs a paper feeding signal to the control assembly. The control assembly receives the paper feeding signal and outputs a first control command based on it. The two second solenoid valves 26 control the extension and retraction of the corresponding drive cylinders 41 and piston rods, thereby extending and retracting the corresponding connecting rods 42. Each connecting rod 42 controls multiple connecting rods 44 to slide vertically through multiple swing plates 43, thereby driving the paper support platform 31 to move vertically upward, so that the highest layer of paper on the paper support platform 31 reaches the preset position. The control component controls the vacuum generator 81 through the first solenoid valve 23, so that each suction nozzle 92 generates negative pressure to suck up the top layer of paper.

[0053] The control component then controls the drive motor 71, causing its output shaft to rotate, which in turn rotates the transmission shaft 721. The transmission shaft 721 then drives two drive gears 722, which mesh with their corresponding transmission gears. These transmission gears mesh with their corresponding racks 724, thereby moving the corresponding support plate 83 closer to the post-press equipment, extending it into the equipment, and reaching a preset position. The control component then controls the vacuum generator 81 via the first solenoid valve 23, causing positive pressure to be generated at each suction nozzle 92, thus placing the sucked paper inside the post-press equipment. The control component then controls the drive motor 71 to reverse, causing the mounting frame 8 to retract via the transmission structure 72, returning it to its paper-sucking position. Simultaneously, the height detection component 21 detects that the stacked paper on the paper tray 31 is below a preset value, repeating the above operation to complete intelligent paper placement.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper-laying device for post-printing equipment, characterized in that: The system includes a control component and a fixed plate (2) that is detachably fixed to the post-printing equipment. A paper suction component (9) is installed on the fixed plate (2), and a paper suction drive component (7) is also provided to drive the paper suction component (9) to pick up and feed paper. The paper suction drive component (7) is electrically connected to the control component. A paper support platform (31) is provided on the lower side of the paper suction component (9). The paper support platform (31) slides relative to the fixed plate (2). A blank sheet detection component (46) is provided on the paper support platform (31) to detect whether there is paper in the paper support platform (31). The blank sheet detection component (46) is electrically connected to the control component. A paper supply drive component (4) is also provided on the fixed plate (2) to drive the paper support drawer (3) to move in the vertical direction. The paper supply drive component (4) is electrically connected to the control component.

2. The paper-laying device for post-printing equipment according to claim 1, characterized in that: The paper support platform (31) and the fixing plate (2) slide and cooperate in the opposite direction to the paper feeding direction of the paper laying device and in the vertical direction, respectively. The paper feeding drive component (4) drives the paper support platform (31) to move in the vertical direction. The control component is electrically connected to the control device of the post-printing equipment.

3. The paper-laying device for post-printing equipment according to claim 2, characterized in that: The paper feeding drive assembly (4) includes a drive cylinder (41), which is electrically connected to the control assembly. The cylinder body of the drive cylinder (41) is hinged to the fixed plate (2). A connecting rod (42) is hinged to the piston rod end of the drive cylinder (41). The connecting rod (42) is horizontally arranged. A swing plate (43) is provided on the connecting rod (42). The axis of the swing plate (43) is rotatably connected to the fixed plate (2) in the horizontal direction. One end of the swing plate (43) is hinged to the connecting rod (42), and the other end is hinged to a connecting rod (44). The swing plate (43) and the connecting rod (44) are spaced apart along the length of the connecting rod (42). At least two sets are provided. The paper support table (31) is provided with a horizontal slider on the side of the fixed plate (2) in the horizontal direction. A horizontal guide rail (45) is embedded on the horizontal slider. The horizontal guide rail (45) is horizontally arranged. The horizontal slider and the horizontal guide rail (45) slide relative to each other in the opposite direction to the paper feeding direction. There is a certain gap between the horizontal guide rail (45) and the fixed plate (2). The lower end of the connecting rod (44) is hinged to the side of the horizontal guide rail (45) away from the horizontal slider. A sliding component is also provided between the horizontal guide rail (45) and the fixed plate (2) to guide the vertical stroke of the horizontal guide rail (45).

4. The paper-laying device for post-press equipment according to claim 1, characterized in that: It also includes a height detection component (21) for detecting the height of paper on the paper tray (31). The height detection component (21) is electrically connected to the control component. An observation hole is provided on the fixed plate (2). The height detection component (21) is fixed on the fixed plate (2), and the detection end of the height detection component (21) faces the paper tray (31) through the observation hole. The height detection component (21) detects the height of paper on the paper tray (31). When the height detection component (21) detects that the height of the stacked paper on the paper tray (31) is lower than a preset value, it outputs a paper feeding signal to the control component. The control component receives and outputs a first control command based on the paper feeding signal. The two paper feeding drive components (4) simultaneously receive the first control command and control the paper tray (31) to slide upward in the vertical direction.

5. A paper-laying device for post-press equipment according to claim 2, characterized in that: The blank sheet detection component (46) is located at the bottom of the paper support table (31). The two fixing plates (2) are covered with protective covers (100). The protective covers (100) cover the entire outside of the device. The protective covers (100) are open on both sides along the length of the paper support table (31). A detachable locking component (5) is provided between the bottom of the paper support table (31) and the protective covers (100).

6. A paper-laying device for post-press equipment according to claim 1, characterized in that: A brush (32) is also fixed on the paper drawer (3). After the paper suction assembly (9) sucks up the top layer of paper, the brush (32) contacts the edge of the paper. When the paper suction assembly (9) and the paper tray (31) move relative to each other in the vertical direction, the brush (32) slides relative to the paper.

7. A paper-laying device for post-press equipment according to claim 1, characterized in that: The paper tray (31) is also provided with a limiting component for adjusting the applicable paper size of the paper tray (31); the limiting component includes a paper stop block (6), one of the paper stop blocks (6) is provided in each of two directions perpendicular to each other in the horizontal direction of the paper, and the paper stop block (6) slides relative to the paper tray (31) in the corresponding horizontal direction; the paper suction drive component (7) includes a drive motor (71) and a mounting frame (8), the mounting frame (8) slides and cooperates with the fixed plate (2) in the paper feeding direction of the device, the housing of the drive motor (71) is fixed on the fixed plate (2), a transmission structure (72) is provided on the output shaft of the drive motor (71), and the output shaft of the drive motor (71) drives the mounting frame (8) to slide through the transmission structure (72), and the suction end of the paper suction component (9) is installed on the mounting frame (8).

8. A paper-laying device for post-printing equipment according to claim 7, characterized in that: A slide rail seat (22) is fixed on the fixed plate (2), and a slide rail strip (82) is fixed on the mounting bracket (8). The slide rail strip (82) is embedded in the slide rail seat (22). The slide rail strip (82) slides and cooperates with the slide rail seat (22) along the paper feeding direction of the device. A transmission shaft (721) is coaxially fixed on the output shaft of the drive motor (71). The axis of the transmission shaft (721) is perpendicular to the paper feeding direction of the device on the horizontal plane. The transmission structure (72) includes a drive gear (722), a transmission gear, and a rack (724). The drive gear (722) is coaxially fixed on the transmission shaft (721). The drive gear (722) meshes with the transmission gear. The transmission gear rotates around its own axis and is connected to the fixed plate (2). The length direction of the rack (724) is parallel to the paper feeding direction of the device. The rack (724) is fixed on the slide rail strip (82). The transmission gear meshes with the rack (724).

9. A paper-laying device for post-press equipment according to claim 8, characterized in that: The fixed plate (2) is also provided with a position detection component for detecting the relative position between the mounting bracket (8) and the fixed plate (2). The position detection component is electrically connected to the control component. When the position detection component detects that the mounting bracket (8) is about to reach the limit position, it outputs a limit signal to the control component. The control component receives the limit signal and outputs a second control command based on the limit signal. The paper suction drive component (7) receives the second control command and stops the mounting bracket (8) from moving.

10. A paper-laying device for post-press equipment according to claim 8, characterized in that: The paper suction assembly (9) includes a mounting rod (91) fixed on a mounting frame (8), a suction nozzle (92) fixed on the mounting rod (91), a vacuum generator (81) fixed on the mounting frame (8), the suction nozzle (92) and the vacuum generator (81) connected by an air pipe, a first solenoid valve (23) fixed on the fixing plate (2), the first solenoid valve (23) and the vacuum generator (81) being electrically connected, multiple suction nozzles (92) are spaced apart on the mounting rod (91) along the length of the mounting rod (91), and multiple mounting rods (91) are spaced apart on the mounting frame (8) along the paper feeding direction of the device; the suction nozzle (92) is configured as a retractable structure or includes a retractable structure.

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