Left-right moving and automatic centering mechanism for lifting platform of paper feeding machine
By designing an automatic centering mechanism of the paper feeder lifting platform including two sets of left and right movement adjustment mechanisms, the problem of lack of left and right movement function and insufficient automatic centering ability of the traditional paper feeder lifting platform is solved, and the precise left and right movement and automatic centering functions of the lifting platform are realized, and the operation efficiency is improved.
Patent Information
- Application Number
- CN202422085850.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The lifting platform of the traditional paper feeder lacks the left and right movement function, and the movement amount is difficult to accurately control, and the lifting platform cannot automatically return to the previous offset position the next time it is loaded with paper.
An automatic centering mechanism for the paper feeder lifting platform including two sets of left and right movement adjustment mechanisms is designed. The left and right movement and automatic centering functions of the lifting platform are realized through components such as screw rods, circular guide rails, deviation correction nuts and sprockets.
It realizes precise control of the movement of the lift platform left and right, and automatically returns to the previous offset position when the next paper is loaded, improving human-computer interaction efficiency and adjustment accuracy.
Smart Images
Figure CN222947734U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of printing machinery, and in particular relates to a left-right movement and automatic centering mechanism of a lifting platform of a paper feeder (feeder) in a paper feeder. Background Art
[0002] The paper feeder is a commonly used feeding unit for sheet-fed printing and packaging equipment (such as offset printing machines, laminating machines, etc.). Its function is to accurately separate the top sheet of paper from the paper pile and transport it to the next station. During the operation of the paper feeder, the operator will adjust the left and right of the paper pile on the lifting platform according to the distance from the paper to the side gauge. Some traditional paper feeders do not have the function of moving the lifting platform left and right, and some paper feeders use sliding rods and rocker mechanisms to move. There is a problem that the amount of movement is difficult to control, and after delivering a truckload of paper, the lifting platform will drop to the bottom and align with the pre-stacked paper guide rail. The traditional mechanism has the disadvantage that it needs to be corrected every time the paper is reloaded. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a mechanism for the left-right movement and automatic centering of a lifting platform of a paper feeder, and adopts the following technical solutions:
[0004] A paper feeder lifting platform left and right movement and automatic centering mechanism, comprising a paper feeder frame and a lifting platform, wherein two sets of upper and lower identical left and right movement adjustment mechanisms are arranged in the middle of the paper feeder wall panels on both sides of the paper feeder frame, the left and right movement adjustment mechanisms include a screw rod, a circular guide rail, a correction nut, and a sprocket, the circular guide rail is arranged in the middle of the wall panels on both sides of the paper feeder, the correction nut is provided with a circular hole, and is sleeved on the circular guide rail, the correction nut is threadedly connected to one end of the screw rod, and when the screw rod is rotated, the correction nut can be moved along the circular guide rail, the other end of the screw rod is rotatably connected to the paper feeder wall panel on one side, the sprocket is sleeved on the screw rod, the sprockets of the upper and lower sets of left and right movement adjustment mechanisms are connected by chains, and the correction nuts of the upper and lower sets of left and right movement adjustment mechanisms are connected by correction supports.
[0005] Furthermore, a connecting block is provided below the deflection correction support, and the connecting block is fixed to the two side wall panels of the paper feeder, and a first deflection correction plate and a second deflection correction plate are symmetrically provided on the upper side of the connecting block along the two sides of the deflection correction support, and the width of the lower end of the deflection correction support gradually decreases from top to bottom to form two inclined surfaces, and the width of the upper end of the first deflection correction plate close to the deflection correction support gradually increases from top to bottom to form an inclined surface, and forms a channel with the inclined surface on this side of the deflection correction support, and the width of the upper end of the second deflection correction plate close to the deflection correction support gradually increases from top to bottom to form an inclined surface, and forms a channel with the inclined surface on this side of the deflection correction support, and a centering block is provided between the lower end of the first deflection correction plate and the lower end of the second deflection correction plate, and the centering block is fixed on the connecting block, and the two sides of the centering block respectively form a channel with the first deflection correction plate and the second deflection correction plate; one side of the lifting platform is provided with two spaced guide shafts, and during the lifting process of the lifting platform, the two guide shafts can slide in the channels formed between the centering block and the first deflection correction plate and the second deflection correction plate respectively.
[0006] Furthermore, in order to improve the flexibility and rigidity of the rotation of the screw rod, one end of the screw rod of the left-right movement adjustment mechanism is connected to one end of the extension shaft, and the other end of the extension shaft is connected to the hand wheel. A rigid coupling is mounted on the extension shaft, and is fixedly connected to the paper feeder wall panel through a reinforcement plate and a hexagonal shaft. By rotating the hand wheel, the screw rod can be driven, thereby driving the sprocket to enable the upper and lower sets of left-right movement adjustment mechanisms to move left and right, thereby adjusting the position of the lifting platform.
[0007] Compared with the prior art, the beneficial effects of the utility model are:
[0008] The movement of left and right adjustment can be controlled more accurately and conveniently, and the lifting platform can be restored to the last offset position when loading paper next time, with good human-machine effect and high adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0010] Figure 1 It is a three-dimensional diagram of the left-right movement and automatic centering mechanism of the lifting platform of the paper feeder of the utility model;
[0011] Figure 2 It is a three-dimensional diagram of the adjustment part 1 of the left-right movement and automatic centering mechanism of the paper feeder lifting platform of the utility model;
[0012] Figure 3 yes Figure 1Partial enlargement of the left and right movement of the lifting platform of the paper feeder and the automatic centering mechanism Figure 1 Structure diagram of
[0013] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0014] 1. Lifting platform, 2. Correction support, 3. Correction nut, 4. Screw, 5. Sprocket, 6. Rigid coupling, 7. Extension shaft, 8. Handwheel, 9. Hexagonal shaft, 10. Reinforcement plate, 11. Nut, 12. Shaft retaining ring, 13. Paper feeder wall panel, 14. Circular guide rail, 15. Guide shaft, 16. Centering block, 17. First correction plate, 18. Second correction plate, 19. Chain, 20. Connecting block, 21. First left and right moving adjustment mechanism, 22. Second left and right moving adjustment mechanism, 23. Paper feeder frame. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] like Figure 1-Figure 3As shown, a paper feeder lifting platform left-right movement and automatic centering mechanism includes a paper feeder frame 23 and a lifting platform 1. Two sets of left-right movement adjustment mechanisms are arranged in the middle of the paper feeder wall panels 13 on both sides of the paper feeder frame 23, namely a first left-right movement adjustment mechanism 21 and a second left-right movement adjustment mechanism 22. The two sets of mechanisms can adopt the same adjustment structure. The first left-right movement adjustment mechanism 21 is taken as an example for introduction. The first left-right movement adjustment mechanism 21 includes a screw rod 4, a circular guide rail 14, a correction nut 3, and a sprocket 5. The circular guide rail 14 is fixed to the wall panels on both sides of the paper feeder frame 23. The correction nut 3 has a hole and is sleeved on the circular guide rail 14. The relative movement of the correction nut 3 and the circular guide rail 14 is achieved by a standard part GB12613.1 rolled shaft sleeve. The correction nut 3 is threadedly connected to one end of the screw rod 4. The hand wheel 8 is fixed to the extension shaft 7 by screws. The extension shaft 7 and the screw rod 4 are connected and locked by a rigid coupling 6. The sprocket 5 and the screw rod 4 are connected by a standard The standard part GB1096 ordinary flat key is used to rotate together, the screw rod 4 and the paper feeder wall panel 13 are relatively rotated through the standard part GB12613.1 rolled shaft sleeve, the shaft retaining ring 12 and the screw rod 4 are fixed by a pin shaft, the nut 11 and the screw rod 4 are screwed, and the shaft retaining ring 12 is used to position the nut 11 and lock it, so that the screw rod 4 and the sprocket 5 are fixed on the paper feeder wall panel 13, the hexagonal shaft 9 and the reinforcing plate 10 enhance the rigidity of the extended shaft 7, so that the handwheel 8 does not shake greatly during the adjustment process, when the handwheel 8 is rotated for adjustment, the chain 19 can be used to drive the sprocket 5 to realize the synchronous adjustment of the first left and right movable adjustment mechanism 21 and the second left and right movable adjustment mechanism 22, the sprocket 5 of the first left and right movable adjustment mechanism 21 and the sprocket 5 of the second left and right movable adjustment mechanism 22 are connected by the chain 19, and the correction nut 3 of the first left and right movable adjustment mechanism 21 and the correction nut of the second left and right movable adjustment mechanism 22 are respectively connected to the correction support 2 by screws.The deflection correction support 2 can be driven to move by adjusting the hand wheel 8. A connecting block 20 is provided below the deflection correction support 2, and the connecting block 20 is fixed on the two side wall panels 13 of the paper feeder frame 23. A first deflection correction plate 17 and a second deflection correction plate 18 are symmetrically provided on both sides of the deflection correction support 2 along the upper side of the connecting block 20. The width of the lower end of the deflection correction support 2 gradually decreases from top to bottom, forming an arrow shape, forming two inclined surfaces. The width of the upper end of the first deflection correction plate 17, which is close to the side of the deflection correction support 2, gradually increases from top to bottom to form an inclined surface, and forms a channel with the inclined surface on this side of the deflection correction support 2. The width of the upper end of the second deflection correction plate 18, which is close to the side of the deflection correction support 2, gradually increases from top to bottom to form an inclined surface, and forms a channel with the inclined surface on this side of the deflection correction support 2. A centering block 16 is provided between the lower end of the first deflection correction plate 17 and the lower end of the second deflection correction plate 18. The centering block 1 6 is fixed on the connecting block 20, and a channel is formed between the two sides of the centering block 16 and the first deflection correcting plate 17 and the second deflection correcting plate 18 respectively; two guide shafts 15 are fixed on one side of the lifting platform 1 by screws, and a gap is formed between the two guide shafts 15 for the centering block 16 to pass through. During the lifting process of the lifting platform 1, the inner sides of the two guide shafts 15 can slide in the channels formed between the centering block 16 and the first deflection correcting plate 17 and the second deflection correcting plate 18 respectively, and the outer sides of the two guide shafts 15 slide along the first deflection correcting block 17 and the second deflection correcting block 18 respectively. During the lifting process of the lifting platform 1, the inclined surface of the lower end of the deflection correcting support 2 can make the lifting platform 1 return to the last deflection correcting position. During the descent process of the lifting platform 1, the inclined surfaces of the first deflection correcting block 17 and the second deflection correcting block 18 make the lifting platform 1 return to the center position to achieve automatic centering. Because the deflection correction and automatic centering are divided into two independent actions, this makes the second paper truck return to the last deflection correcting position during the lifting process, thereby solving the above problem.
[0017] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0018] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A paper feeder lifting platform left-right movement and automatic centering mechanism, comprising a paper feeder frame and a lifting platform, characterized in that: Two identical upper and lower sets of left-right movable adjustment mechanisms are provided in the middle of the paper feeder wall panels on both sides of the paper feeder frame, and the left-right movable adjustment mechanisms include a screw rod, a circular guide rail, a correction nut, and a sprocket. The circular guide rail is provided in the middle of the wall panels on both sides of the paper feeder. The correction nut is provided with a round hole and is sleeved on the circular guide rail. The correction nut is threadedly connected to one end of the screw rod, and the other end of the screw rod is rotatably connected to the paper feeder wall panel on one side. The sprocket is sleeved on the screw rod, and the sprockets of the upper and lower sets of left-right movable adjustment mechanisms are connected by chains, and the correction nuts of the upper and lower sets of left-right movable adjustment mechanisms are connected by correction supports.
2. The left-right movement and automatic centering mechanism of the paper feeder lifting platform according to claim 1 is characterized in that: A connecting block is provided below the deflection correction support, and the connecting block is fixed to the two side wall panels of the paper feeder, and a first deflection correction plate and a second deflection correction plate are symmetrically provided on the upper side of the connecting block along the two sides of the deflection correction support, and the width of the lower end of the deflection correction support gradually decreases from top to bottom to form two inclined surfaces, and the width of the upper end of the first deflection correction plate close to the deflection correction support gradually increases from top to bottom to form an inclined surface, and forms a channel with the inclined surface on this side of the deflection correction support, and the width of the upper end of the second deflection correction plate close to the deflection correction support gradually increases from top to bottom to form an inclined surface, and forms a channel with the inclined surface on this side of the deflection correction support, and a centering block is provided between the lower end of the first deflection correction plate and the lower end of the second deflection correction plate, and the centering block is fixed on the connecting block, and the two sides of the centering block respectively form a channel with the first deflection correction plate and the second deflection correction plate; two spaced guide shafts are provided on one side of the lifting platform, and during the lifting process of the lifting platform, the two guide shafts can slide in the channels formed between the centering block and the first deflection correction plate and the second deflection correction plate respectively.
3. The left-right movement and automatic centering mechanism of the paper feeder lifting platform according to claim 1 or 2, characterized in that: One end of the screw rod of the left-right movable adjustment mechanism is connected to one end of the extension shaft, and the other end of the extension shaft is connected to the hand wheel. A rigid coupling is sleeved on the extension shaft and is fixedly connected to the paper feeder wall panel through a reinforcing plate and a hexagonal shaft.