Paper turnover mechanism of high-speed double-sided printing equipment

By controlling the bidirectional clamping force of the flipping limit component, the stability and positioning accuracy of paper flipping in high-speed double-sided printing are solved, realizing efficient and precise flipping of mixed thin and thick paper printing, and reducing the difficulty of equipment maintenance.

CN224105158UActive Publication Date: 2026-04-10东莞市荣兴文具有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
东莞市荣兴文具有限公司
Filing Date
2025-05-12
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In the field of high-speed duplex printing, the challenge of efficient and precise paper flipping, especially when printing with a mixture of thin and thick paper, is that existing equipment struggles to maintain stability and precision, leading to a decline in print quality and an increase in scrap rate.

Method used

The system employs a flipping and limiting assembly, including a flipping plate, trunnion, slide rail, side plate, extrusion cylinder, drive rod, linkage rod, lifting platform, extrusion rod, limiting block, and drive assembly. The lifting platform and extrusion rod are driven to approach synchronously by a bidirectional lead screw, and the extrusion cylinder drives the linkage rod to rotate the side plate, forming a bidirectional clamping force in both vertical and horizontal directions, ensuring the stability and positioning accuracy of the paper during high-speed flipping.

Benefits of technology

It effectively counteracts the vibration and inertial displacement of paper during high-speed flipping, avoids misalignment, improves positioning accuracy, and is suitable for mixed printing of thin and thick paper in high-throughput scenarios, reducing equipment maintenance complexity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a paper turnover mechanism of high-speed double-sided printing equipment, which belongs to the technical field of printing and comprises an equipment frame and a turnover limiting component arranged on the outer wall of the equipment frame, the turnover limiting component comprises a turnover plate, a trunnion, a slide rail, a side plate, a stacking frame, an extrusion cylinder, a driving rod, a linkage rod, a lifting platform, an extrusion rod, a limiting block and a driving component, the trunnions are fixedly arranged in the centers of the two sides of the outer wall of the overturning plate and rotationally embedded in the inner wall of the equipment frame. According to the overturning limiting assembly, through two-way extrusion and lateral locking, a lifting table and an extrusion rod are driven by a two-way lead screw to be synchronously close, an extrusion air cylinder is matched to drive a linkage rod to drive a side edge plate to rotate, vertical and horizontal two-way clamping force is formed, vibration and inertial displacement during high-speed overturning are effectively counteracted, and paper dislocation is avoided; and when the limiting block slides in the sliding rail, the moving path is precisely restrained, it is guaranteed that no deviation exists in the clamping process, and the positioning precision is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to printing technical field, concretely relates to a paper turning mechanism of high -speed double -sided printing device. BACKGROUND

[0002] Double -sided printing refers to the printing process on both sides of the printable material, and the same or different design can be printed on both sides, in offset printing, double -sided printing is used two different printing plates, and the front and back printing is completed simultaneously on the same printing material.

[0003] In the field of high -speed double -sided printing, the efficient and accurate turning of paper has been a key technical problem, when the traditional printing equipment handles paper turning, paper is often misaligned and vibrates due to high -speed operation, which affects printing quality and efficiency, the prior art mainly has the following deficiencies: most of the equipment lacks effective dynamic stability mechanism, paper is easily affected by vibration and inertia during high -speed turning, displacement and misalignment are generated, which causes the printing pattern to be not accurate, and the scrap rate rises, such as part of the turning mechanism only relies on simple mechanical structure to support paper, it is difficult to maintain stability in high -speed motion, the driving and control mode of the existing turning mechanism is rough, and it is difficult to realize high -precision positioning of paper, especially when printing thin paper and thick paper, the difference in paper thickness makes positioning more difficult, and printing deviation is easy to occur, which affects product quality, in the face of high -throughput printing demand, the traditional equipment is often limited by structure and function, and cannot meet the requirements of different paper types and printing speed, for example, some equipment is easy to jam when processing thin paper, and it is difficult to guarantee the turning precision and stability when printing thick paper. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a paper turning mechanism of high -speed double -sided printing device, and aims at solving the problems proposed in the background art.

[0005] A paper turning mechanism of high -speed double -sided printing device, comprising,

[0006] Equipment frame;

[0007] The turnover limiting assembly is arranged at the outer wall of the equipment rack, wherein: the turnover limiting assembly comprises a turnover plate, a trunnion, a slide rail, a side plate, a stacking frame, an extrusion cylinder, a driving rod, a linkage rod, a lifting platform, an extrusion rod, a limiting block and a driving assembly, the trunnion is fixedly arranged at the center of the outer wall of the turnover plate, the trunnion is rotatably embedded in the inner wall of the equipment rack, the slide rail is rotatably inserted into the outer wall of the turnover plate, the side plate is rotatably inserted into the outer wall of the turnover plate on both sides, the extrusion cylinder is rotatably inserted into the top of the outer wall of the turnover plate, the driving rod is fixedly arranged at the output end of the outer wall of the extrusion cylinder, one end of the linkage rod is rotatably inserted into the outer wall of one end of the driving rod, the other end of the linkage rod is rotatably sleeved on the outer wall top of the corresponding side plate, the limiting block is slidably embedded in the inner wall of the slide rail, the lifting platform and the extrusion rod are both fixedly arranged at the outer wall of the corresponding limiting block, and the driving assembly is arranged at the outer wall of the equipment rack.

[0008] Further, the driving assembly comprises a driving motor, a rotary motor, a transmission wheel set, a turnover motor and a bidirectional screw rod.

[0009] Further, the driving motor is fixedly arranged at the top of the outer wall of the slide rail, one end of the bidirectional screw rod is fixedly arranged at the output end of the outer wall of the driving motor, and the other end of the bidirectional screw rod is threadedly connected to the inner wall of the limiting block.

[0010] Further, the output end of the rotary motor is in transmission connection with the transmission wheel set, the transmission wheel set is in transmission connection with the trunnion, the turnover motor is fixedly arranged at the center of one side of the outer wall of the turnover plate, and the output end of the turnover motor is fixedly arranged at the center of one side of the outer wall of the slide rail.

[0011] Further, the outer wall of the slide rail is fixedly provided with a mounting frame, and the inner wall of the mounting frame is rotatably embedded with a roller.

[0012] Further, the outer wall of the lifting platform is sleeved with the stacking frame, and the stacking frame and the extrusion rod are matched with each other.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The turnover limiting assembly is limited by bidirectional extrusion and lateral locking, the synchronous approach of the lifting platform and the extrusion rod is driven by bidirectional screw rods, the lateral plate is rotated by the linkage rod driven by the extrusion cylinder, vertical and horizontal bidirectional clamping force is formed, vibration and inertial displacement during high-speed turnover are effectively offset, paper misregistration is avoided, the movement path is accurately constrained when the limiting block slides in the slide rail, no deviation is ensured during clamping, positioning accuracy is improved, the turnover limiting assembly is controlled by mechanical linkage and electrical driving, the dynamic stability and positioning accuracy problems during paper turnover in high-speed double-sided printing are solved, especially suitable for thin paper / thick paper mixed printing demand in high-throughput scenarios, the modular design further reduces equipment maintenance complexity, and high industrial adaptability is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0016] Figure 1 It is a perspective view of the present application;

[0017] Figure 2 It is a perspective view of the driving rod of the present application;

[0018] Figure 3 It is a perspective view of the lifting platform of the present application;

[0019] Figure 4 It is a perspective view of the extrusion rod of the present application;

[0020] Figure 5 It is a perspective view of the limiting block of the present application.

[0021] In the drawings: 1, equipment rack; 2, turnover plate; 3, slide rail; 4, lateral plate; 5, stacking frame; 6, driving motor; 7, rotating motor; 8, turnover motor; 9, extrusion cylinder; 10, driving rod; 11, linkage rod; 12, mounting frame; 13, roller; 14, lifting platform; 15, extrusion rod; 16, limiting block; 17, bidirectional screw rod; 201, trunnion; 701, transmission wheel set. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "top / bottom end" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "mounting", "setting", "sleeving / interfacing", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between the two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please refer to Figures 1-5 The technical scheme provided by the embodiment is as follows:

[0026] A paper turning mechanism of a high-speed double-sided printing device, comprising,

[0027] Device frame 1;

[0028] The turning limiting assembly is arranged on the outer wall of the device frame 1, wherein: the turning limiting assembly comprises a turning plate 2, an ear shaft 201, a sliding rail 3, a side plate 4, a stacking frame 5, an extrusion cylinder 9, a driving rod 10, a linkage rod 11, a lifting platform 14, an extrusion rod 15, a limiting block 16 and a driving assembly, the ear shaft 201 is fixedly arranged at the center of the outer wall of the turning plate 2, the ear shaft 201 is rotatably embedded in the inner wall of the device frame 1, the sliding rail 3 is rotatably inserted into the outer wall of the turning plate 2, the side plate 4 is rotatably inserted into the outer wall of the turning plate 2 on both sides, the extrusion cylinder 9 is rotatably inserted into the outer wall of the top of the turning plate 2, the driving rod 10 is fixedly arranged on the outer wall of the output end of the extrusion cylinder 9, one end of the linkage rod 11 is rotatably inserted into the outer wall of one end of the driving rod 10, the other end of the linkage rod 11 is rotatably sleeved on the outer wall top of the corresponding side plate 4, the limiting block 16 is slidably embedded in the inner wall of the sliding rail 3, the lifting platform 14 and the extrusion rod 15 are both fixedly arranged on the outer wall of the corresponding limiting block 16, and the driving assembly is arranged on the outer wall of the device frame 1.

[0029] In the embodiment of the utility model, the turnover limiting assembly is locked by bidirectional extrusion and lateral locking, the synchronous approach of lifting platform 14 and extrusion rod 15 is driven by bidirectional screw rod 17, linkage rod 11 is driven to rotate side plate 4 by cooperation of extrusion cylinder 9, vertical and horizontal bidirectional clamping force is formed, vibration and inertia displacement during high speed turnover are effectively offset, paper misregistration is avoided, the movement path is accurately restricted when limiting block 16 slides in slide rail 3, the clamping process is ensured without deviation, positioning accuracy is improved, the turnover limiting assembly is controlled by mechanical linkage and electrical drive, the dynamic stability and positioning accuracy problems during paper turnover in high speed double-sided printing are solved, especially suitable for thin paper / thick paper mixed printing demand in high throughput scene, the modular design further reduces equipment maintenance complexity, and the utility model has higher industrial adaptability.

[0030] Specifically, the driving assembly comprises a driving motor 6, a rotating motor 7, a transmission wheel set 701, a turnover motor 8 and a bidirectional screw rod 17.

[0031] In the embodiment of the utility model, the driving assembly can ensure stable driving.

[0032] Specifically, the driving motor 6 is fixedly arranged at the top of the outer wall of the slide rail 3, one end of the bidirectional screw rod 17 is fixedly arranged at the output end of the driving motor 6, and the other end of the bidirectional screw rod 17 is threadedly connected to the inner wall of the limiting block 16.

[0033] In the embodiment of the utility model, the other end of the bidirectional screw rod 17 is threadedly connected to the inner wall of the limiting block 16, so that the accuracy of movement can be ensured.

[0034] Specifically, the output end of the rotating motor 7 is in transmission connection with the transmission wheel set 701, the transmission wheel set 701 is in transmission connection with the trunnion 201, the turnover motor 8 is fixedly arranged at the center of one side of the outer wall of the turnover plate 2, and the output end of the turnover motor 8 is fixedly arranged at the center of one side of the outer wall of the slide rail 3.

[0035] In the embodiment of the utility model, the output end of the turnover motor 8 is fixedly arranged at the center of one side of the outer wall of the slide rail 3, so that stable transmission can be ensured.

[0036] Specifically, the outer wall of the slide rail 3 is fixedly provided with a mounting frame 12, and the inner wall of the mounting frame 12 is rotatably embedded with a roller 13.

[0037] In the embodiment of the utility model, the inner wall of the mounting frame 12 is rotatably embedded with the roller 13, so that the sliding friction between the stacking frame 5 and the paper can be reduced.

[0038] Specifically, the outer wall of the lifting platform 14 is sleeved with the stacking frame 5, and the stacking frame 5 is matched with the extrusion rod 15.

[0039] In the embodiment of the utility model, the stacking frame 5 and the extrusion rod 15 are matched with each other, so that stable clamping can be ensured.

[0040] Working principle:

[0041] The stacking machine places the completed paper stack on the stacking frame 5, the trolley is moved along the outer side of the equipment frame 1 to the axis position of the lifting platform 14, so that the stacking frame 5 is accurately positioned above the lifting platform 14, the trolley is pushed, the stacking frame 5 slides into the surface of the turnover plate 2 through the roller 13 (embedded in the mounting frame 12), the roller 13 reduces the friction, so as to avoid scratching the surface of the paper, the driving motor 6 is started, the bidirectional screw rod 17 is rotated, the two ends of the bidirectional screw rod 17 are threaded to drive the two limiting blocks 16 to slide synchronously towards the center in the sliding rail 3, so that the lifting platform 14 fixed to the limiting block 16 is close to the extrusion rod 15, the paper stack on the stacking frame 5 is clamped from both sides, so that the paper stack is fixed in the vertical direction, the extrusion cylinder 9 is started synchronously, the driving rod 10 is linearly moved, the driving linkage rod 11 is rotated around the shaft, the other end of the linkage rod 11 pulls the side plate 4 to rotate inward, so that the stacking frame 5 is clamped from the horizontal direction, the horizontal direction is locked, the paper offset caused by clamping vibration is eliminated, after the clamping is completed, the rotating motor 7 transmits power to the trunnion 201 through the transmission wheel set 701, so as to drive the turnover plate 2 to rotate 90° around the trunnion 201, so that the stacking frame 5 and the paper are changed from the horizontal state to the vertical state, the rigid connection between the trunnion 201 and the equipment frame 1 ensures that there is no structural deformation during the turnover process, so as to adapt to the large inertia load of high-speed turnover, the turnover motor 8 directly drives the sliding rail 3 to rotate around the center shaft, so as to drive the limiting block 16, the lifting platform 14 and the stacking frame 5 to rotate synchronously, so as to adjust the paper to the target angle (such as 180°), complete the turnover operation required by double-sided printing, the rotating action of the sliding rail 3 is independent of the turnover plate 2, so as to avoid the interference of multi-axis motion, improve the adjustment flexibility, the driving motor 6 is reversed, the bidirectional screw rod 17 drives the lifting platform 14 and the extrusion rod 15 to reset; the extrusion cylinder 9 is retracted, the linkage rod 11 pushes the side plate 4 to rotate outward, so as to release the horizontal clamping, the rotating motor 7 is reversed, the transmission wheel set 701 drives the turnover plate 2 to return to the initial horizontal position, so as to prepare for the next batch of paper processing.

[0042] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical scheme recorded in the foregoing embodiments, or equivalent replacement is carried out to part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. 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A paper turning mechanism for a high speed perfecting printing apparatus according to claim 1, wherein ​ 3. A paper turning mechanism for a high speed perfecting printing apparatus according to claim 2, wherein ​ 4. A paper turning mechanism for a high speed perfecting printing apparatus according to claim 3, wherein ​ 5. A paper turning mechanism for a high speed perfecting printing apparatus according to claim 4, wherein ​ 6. A paper turning mechanism for a high speed perfecting printing apparatus according to claim 5, wherein ​