A paper collecting device for a printing machine

Abstract

The utility model relates to printing paper collection technical field, and disclose a kind of paper collecting device for printing machine, including box, and the supporting leg of box bottom is arranged, and the top of box is equipped with box cover, the inside of box is equipped with lifting platform, and the both ends of lifting platform are equipped with lifting mechanism, the inside of lifting platform is equipped with conveying mechanism, and the upside of lifting platform is equipped with limit track, the bottom of box cover is equipped with ultraviolet dryer, and ultraviolet dryer is set in the upper of lifting platform, the both sides of box are respectively equipped with feed inlet and discharge outlet, and feed inlet is set in the upper of box, discharge outlet is set in the bottom of box. It has the advantages of continuous automatic paper collection, greatly improve production efficiency, lifting structure is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of printing paper collection technology, specifically a paper collection device for printing presses. Background Technology

[0002] In the printing production process, paper collection is the final and crucial step, and its efficiency and quality directly affect overall production efficiency. Traditional printing press paper collection devices mostly use fixed collection tables or simple stacking methods, which have significant shortcomings: First, once the paper is stacked to a certain height, the machine must be stopped and the paper manually removed, severely affecting production continuity and reducing efficiency; second, the ink on the surface of freshly printed paper is not completely dry, making it prone to smudging and sticking during stacking, affecting the quality of printed products; third, fixed-height collection tables cannot flexibly adapt to the paper collection needs of different thicknesses, resulting in poor versatility. In addition, existing devices lack effective limiting and guiding mechanisms during paper transport, making them prone to problems such as misalignment and paper jams.

[0003] Therefore, there is an urgent need for a paper receiving device that can achieve continuous paper receiving, promote ink drying, has adjustable height, and operates stably. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a paper receiving device for printing presses, which has the advantages of continuous automated paper receiving, significantly improved production efficiency, and stable and reliable lifting structure. It solves the problems of discontinuous production, low efficiency, and smudges and adhesion of undried ink during stacking caused by the need to stop the machine to retrieve paper in traditional paper receiving devices, which affect the surface quality of printed products. It also addresses the issues of fixed-height paper receiving tables being unable to flexibly adapt to different paper receiving volumes or thicknesses, and the paper being prone to deviation, misalignment, or even jamming during the paper receiving process due to the lack of effective guidance and limiting.

[0005] (II) Technical Solution To achieve the aforementioned goals of continuous automated paper collection, significantly improved production efficiency, and stable and reliable lifting structure, this utility model provides the following technical solution: A paper collection device for a printing press, comprising a box body and supporting feet disposed at the bottom of the box body, and a box cover disposed at the top of the box body. The box body contains a lifting platform, and lifting mechanisms are disposed at both ends of the lifting platform. The lifting mechanisms are disposed inside the box body. The lifting platform contains a conveying mechanism, and a limiting rail is disposed on the upper side of the lifting platform. A UV dryer is disposed at the bottom of the box cover, and the UV dryer is disposed above the lifting platform. An inlet and an outlet are respectively opened on both sides of the box body, with the inlet located at the top of the box body and the outlet located at the bottom of the box body.

[0006] Preferably, the lifting mechanism includes a lifting frame, and a lifting platform is installed on the upper side of the lifting frame. The bottom of the housing is provided with a storage slot for accommodating the lifting frame, and both ends of the lifting frame are slidably connected to the interior of the housing.

[0007] Preferably, the lifting frame has a lifting block and a sliding block at both ends, and the lifting block has a sliding rod inside, and the sliding block has a lifting screw inside. The lifting screw and the sliding rod are respectively installed on both sides inside the box and are slidably connected to the inner wall of the box at the corresponding position. The bottom of the box has a lifting motor, and the output end of the lifting motor is fixedly connected to the bottom end of the lifting screw.

[0008] Preferably, the conveying mechanism includes a conveyor belt disposed on the inner wall of the lifting platform and a conveying roller disposed inside the conveyor belt. The two ends of the conveying roller are rotatably connected to the inner wall of the lifting platform, and a conveying motor is provided at one end of the conveying roller. The conveying motor is disposed at one end of the upper side of the lifting platform. A support block is provided inside the conveyor belt, and the conveying roller is respectively installed at both ends of the support block.

[0009] Preferably, a fixing plate is provided at the feed inlet, and the fixing plate is located on the outside of the box body and at one end of the conveyor belt. A feed ramp is provided on the upper side of the fixing plate, and side baffles are respectively installed at both ends of the feed ramp. The side baffles are connected to one end of the limiting track.

[0010] Preferably, the discharge port is located on one side of the bottom of the box, and a discharge ramp is installed on one side of the bottom of the box, the discharge ramp being located at the discharge port.

[0011] (III) Beneficial Effects Compared with existing technologies, this utility model provides a paper receiving device for printing presses, which has the following advantages: This temporary lighting device, through the coordinated action of the lifting platform and the conveying mechanism, can output the collected paper layer by layer without stopping the machine, effectively solving the efficiency bottleneck problem caused by the need to stop the machine to retrieve paper when it is full in traditional devices. An ultraviolet dryer is installed at the bottom of the box cover, which can quickly cure the ink on the paper surface during the paper receiving process, fundamentally avoiding smudging and sticking during stacking, and significantly improving the finished product qualification rate. The device employs a lifting mechanism composed of a lifting screw, a sliding rod, and a lifting frame. The mechanism operates smoothly and with precise positioning. The lifting frame can be stored in a storage slot at the bottom of the housing, making the device compact and reducing space occupied when not in operation. The conveyor belt, along with the limiting track and side baffles on the feeding ramp, forms a complete paper guiding and limiting system, ensuring smooth and aligned paper flow from feeding to stacking and then to output, effectively preventing deviation and paper jams. The device has standardized feeding and discharging ports, and is equipped with ramps, facilitating seamless integration with upstream and downstream equipment (such as printing mainframes and subsequent packaging machines), thus improving the automation level of the production line. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a bottom structural diagram of the present invention; Figure 3 This is a cross-sectional view of the housing of this utility model; Figure 4 This is a structural diagram of the lifting mechanism of this utility model; Figure 5 This is a structural diagram of the conveying mechanism of this utility model; Figure 6 This is a structural diagram of the box cover of this utility model.

[0013] In the diagram: 1. Box body; 2. Box cover; 3. Support leg; 4. Discharge port; 5. Discharge ramp; 6. Feed ramp; 7. Lifting motor; 8. Conveyor belt; 9. Storage trough; 10. Lifting block; 11. Limiting track; 12. Side baffle; 13. Fixing plate; 14. Sliding rod; 15. Lifting frame; 16. Lifting screw; 17. Sliding block; 18. Conveyor motor; 19. Conveyor roller; 20. Support block; 21. Ultraviolet dryer; 22. Lifting platform; 23. Feed port. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Please refer to Figure 1-6 A paper receiving device for a printing press includes a box body 1 and support feet 3 at the bottom of the box body 1. The top of the box body 1 is provided with a box cover 2. The inside of the box body 1 is provided with a lifting platform 22, and the two ends of the lifting platform 22 are provided with lifting mechanisms. The lifting mechanisms are located inside the box body 1. The inside of the lifting platform 22 is provided with a conveying mechanism, and the upper side of the lifting platform 22 is provided with a limiting rail 11. The bottom of the box cover 2 is provided with an ultraviolet dryer 21, and the ultraviolet dryer 21 is located above the lifting platform 22. The two sides of the box body 1 are respectively provided with a feed inlet 23 and a discharge outlet 4, with the feed inlet 23 located at the top of the box body 1 and the discharge outlet 4 located at the bottom of the box body 1.

[0016] The housing 1 serves as the core support and protective structure. Its bottom support feet 3 provide stable placement and height adjustment, while the top cover 2 facilitates maintenance and observation of the interior. The core of the device is the internal lifting platform 22, which is not fixed but a vertically movable work platform that directly receives and stacks the paper from the printing press. The movement of the lifting platform is controlled by lifting mechanisms at both ends, ensuring smooth and synchronized lifting and preventing platform tilting. The conveying mechanism, integrated inside the lifting platform, is responsible for outputting the stacked paper from the device, achieving separation of paper receiving and output. The ultraviolet dryer 21, located at the bottom of the cover, is a crucial quality assurance component. It instantly or rapidly cures the ink on the paper surface during the falling and stacking process, effectively preventing "smudged" ink from subsequent stacking. The placement of the inlet 23 and outlet 4 reflects a streamlined design philosophy. The feed inlet is located at the top, making it easy to receive paper from the printing host; the discharge outlet is located on the bottom side, allowing the collected paper stack to be easily sent out at the lowest position via the conveyor mechanism, which is ergonomic and makes it easy for workers to receive the paper or connect to the next process.

[0017] The lifting mechanism includes a lifting frame 15, and a lifting platform 22 is installed on the upper side of the lifting frame 15. The bottom of the housing 1 is provided with a storage slot 9 that can store the lifting frame 15. The two ends of the lifting frame 15 are slidably connected to the interior of the housing 1.

[0018] The lifting frame 15 serves as the direct load-bearing skeleton of the lifting platform 22, transferring the load of the platform to the lifting mechanism. This frame structure provides robust support. The storage slot 9 is a key space optimization design. When the lifting platform needs to descend to its lowest position to receive the first sheet of paper, the lifting frame can be fully retracted into this slot. This maximizes the vertical space utilization of the entire device, reducing the overall height of the housing while ensuring the maximum paper receiving height, resulting in a more compact structure. The sliding connection between the two ends of the lifting frame and the inner wall of the housing provides additional guidance and constraint beyond the drive point, ensuring that the lifting platform does not sway back and forth or left and right during movement, ensuring smooth operation.

[0019] Lifting frame 15 has lifting blocks 10 and sliding blocks 17 at its two ends respectively. Lifting blocks 10 have sliding rods 14 inside, and sliding blocks 17 have lifting screws 16 inside. Lifting screws 16 and sliding rods 14 are installed on both sides inside the box 1 and are slidably connected to the inner wall of the box 1 at the corresponding positions. Lifting motor 7 is provided at the bottom of the box 1, and the output end of lifting motor 7 is fixedly connected to the bottom end of lifting screw 16.

[0020] One end uses a lifting screw 16 with a sliding block 17, and the other end uses a sliding rod 14 with a lifting block 10. The lifting screw converts rotational motion into linear motion, providing driving force; while the sliding rod only provides pure guidance and support functions and does not bear torque. This design avoids the synchronization problems that may occur when using dual screws, and the structure is simple, reliable, and lower in cost. The lifting motor 7 serves as the power source, directly driving the lifting screw through a coupling. The forward and reverse rotation of the motor controls the rise and fall of the lifting platform. By controlling the rotation angle of the motor, the stopping position of the lifting platform can be precisely controlled. Each time a sheet of paper is received, the lifting platform automatically descends by the thickness of one sheet of paper, thus always keeping the paper receiving surface at the same height and flush with the feed inlet. This function, called "automatic platform lowering," is the key to achieving continuous and flat paper receiving.

[0021] The conveying mechanism includes a conveyor belt 8 disposed on the inner wall of the lifting platform 22, and a conveyor roller 19 disposed inside the conveyor belt 8. The two ends of the conveyor roller 19 are rotatably connected to the inner wall of the lifting platform 22, and a conveyor motor 18 is provided at one end of the conveyor roller 19. The conveyor motor 18 is disposed at one end of the upper side of the lifting platform 22. A support block 20 is provided inside the conveyor belt 8, and the conveyor roller 19 is respectively installed at both ends of the support block 20.

[0022] The conveyor belt 8 and conveyor rollers 19 are directly embedded in the body of the lifting platform 22, making the lifting platform both a stacking platform and an output device. This integrated design is very compact. The conveyor motor 18 drives the conveyor rollers 19 to rotate, which in turn drives the conveyor belt 8 to move. When the paper stack needs to be output, the conveyor belt starts, using friction to smoothly push the entire paper stack towards the discharge port. The support block 20 is located inside the conveyor belt, and its function is to support the middle section of the conveyor belt, preventing excessive sagging in the middle section under load, especially when the paper stack is full, ensuring that the paper stack is stable during output and will not scatter.

[0023] A fixing plate 13 is provided at the feed inlet 23, and the fixing plate 13 is located on the outside of the box 1 and at one end of the conveyor belt 8. A feed inclined plate 6 is provided on the upper side of the fixing plate 13, and side baffles 12 are respectively installed at both ends of the feed inclined plate 6. The side baffles 12 are connected to one end of the limiting track 11.

[0024] The feed sloping plate 6 guides the paper from the printing press, ensuring it enters the delivery unit at a smooth angle and preventing the paper tip from curling or jamming due to sudden impact. The fixing plate 13 ensures rigid connection and alignment between the feed sloping plate and the housing, as well as the inlet of the internal conveyor belt. The side baffle 12 and the limiting rail 11 together form a channel. The side baffle provides external guidance, while the limiting rail performs final positioning on the internal lifting platform. This system ensures that each sheet of paper maintains the correct posture and position during its descent, resulting in a neatly stacked paper pile.

[0025] The discharge port 4 is located on one side of the bottom of the box 1, and a discharge ramp 5 is installed on one side of the bottom of the box 1. The discharge ramp 5 is located at the discharge port 4.

[0026] The discharge ramp 5 is installed at the discharge port on the outer side of the bottom of the box. Its function is to seamlessly connect with the internal conveyor belt and guide the stack of papers sent out by the conveyor belt to the receiving trolley, pallet, or the next section of the conveyor line.

[0027] Working Principle: Driven by the lifting motor 7 and lifting screw 16, the lifting platform 22 rises to its highest point, its surface aligned with the feeding ramp 6 at the inlet 23. Printed paper enters through the inlet 23 and slides precisely onto the conveyor belt 8 of the lifting platform 22 via the channel formed by the feeding ramp 6, side baffles 12, and limiting rails 11. During this process, the ultraviolet dryer 21 under the cover 2 continuously irradiates the paper surface, rapidly curing the ink. Each time a sheet or stack of paper is received, the control system instructs the lifting motor 7 to rotate, causing the lifting platform 22 to automatically descend by a small amount, approximately the thickness of a sheet of paper. This ensures that the paper always lands at the same horizontal level during the next paper collection, maintaining a neat stack. When the paper stack reaches a preset quantity, i.e., when the lifting platform descends to its lowest position or approaches the outlet, the conveyor mechanism starts, the conveyor motor 18 operates, driving the conveyor rollers 19 and the conveyor belt 8 to move, horizontally conveying the entire neatly stacked paper stack from the outlet 4 and sliding it into the designated area via the outlet ramp 5. When the conveyor motor 18 is working, it drives the conveyor roller 19 and the conveyor belt 8 to move, and sends the entire neatly stacked paper stack horizontally out of the discharge port 4 and slides into the designated area via the discharge ramp 5.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper receiving device for a printing press, comprising a housing (1) and support feet (3) disposed at the bottom of the housing (1), and a housing cover (2) provided at the top of the housing (1), characterized in that: The box (1) is equipped with a lifting platform (22) inside, and lifting mechanisms are provided at both ends of the lifting platform (22). The lifting mechanism is located inside the box (1). The lifting platform (22) is equipped with a conveying mechanism inside, and a limiting rail (11) is provided on the upper side of the lifting platform (22). The bottom of the box cover (2) is equipped with an ultraviolet dryer (21), and the ultraviolet dryer (21) is located above the lifting platform (22). The box (1) is equipped with a feed inlet (23) and a discharge outlet (4) on both sides, and the feed inlet (23) is located above the box (1) and the discharge outlet (4) is located at the bottom of the box (1).

2. The paper receiving device for a printing press according to claim 1, characterized in that: The lifting mechanism includes a lifting frame (15), and a lifting platform (22) is installed on the upper side of the lifting frame (15). The bottom of the box (1) is provided with a storage slot (9) that can store the lifting frame (15). The two ends of the lifting frame (15) are slidably connected to the inside of the box (1).

3. The paper receiving device for a printing press according to claim 2, characterized in that: The lifting frame (15) has a lifting block (10) and a sliding block (17) at both ends, and a sliding rod (14) is provided inside the lifting block (10), and a lifting screw (16) is provided inside the sliding block (17). The lifting screw (16) and the sliding rod (14) are respectively installed on both sides inside the box (1) and are slidably connected to the inner wall of the box (1) at the corresponding position. The bottom of the box (1) is provided with a lifting motor (7), and the output end of the lifting motor (7) is fixedly connected to the bottom end of the lifting screw (16).

4. The paper receiving device for a printing press according to claim 1, characterized in that: The conveying mechanism includes a conveyor belt (8) disposed on the inner wall of the lifting platform (22) and a conveyor roller (19) disposed inside the conveyor belt (8). The two ends of the conveyor roller (19) are rotatably connected to the inner wall of the lifting platform (22), and a conveyor motor (18) is provided at one end of the conveyor roller (19). The conveyor motor (18) is disposed at one end of the upper side of the lifting platform (22). A support block (20) is provided inside the conveyor belt (8), and the conveyor roller (19) is respectively installed at both ends of the support block (20).

5. A paper receiving device for a printing press according to claim 4, characterized in that: A fixing plate (13) is provided at the feed inlet (23), and the fixing plate (13) is located on the outside of the box (1). The fixing plate (13) is located at one end of the conveyor belt (8). A feeding inclined plate (6) is provided on the upper side of the fixing plate (13), and side baffles (12) are installed at both ends of the feeding inclined plate (6). The side baffles (12) are connected to one end of the limiting track (11).

6. A paper receiving device for a printing press according to claim 1, characterized in that: The discharge port (4) is located on one side of the bottom of the box (1), and a discharge ramp (5) is installed on one side of the bottom of the box (1). The discharge ramp (5) is located at the discharge port (4).

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