Paper gap adjusting mechanism of paper folding machine

Abstract

The utility model discloses a paper gap adjusting mechanism of a paper folding machine, an adjusting mechanism is arranged on a side plate of the paper folding machine, the adjusting mechanism comprises a paper clamping plate, a linkage piece and a movable rod, one end of the movable rod is provided with a first pressing block, and through the synergistic effect of a mechanical linkage structure and a self-adaptive adjusting system, the paper gap is adjusted. And the paper thickness control precision and the equipment adaptability in the paper folding process are remarkably improved. When paper of different thicknesses enters a gap formed by the first pressing block and the paper clamping plate, the movable rod generates axial displacement along with the stacking amount of the paper, the linkage piece is triggered to rotate around the rotation end, then the paper pressing roller is driven to swing synchronously so as to dynamically adjust the width of a paper channel, and the paper folding thickness limiting value can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paper folding machine technical field, specifically is a paper folding machine paper gap adjusting mechanism. BACKGROUND

[0002] The paper folding machine is a post-press processing equipment for paper folding, commonly used in printing and packaging industries. The main types include fence type and knife type, which realize precise creasing through components such as paper pressing roller and paper guide plate. The fence type paper folding machine dynamically controls the paper gap by adjusting mechanism, adapts to different thicknesses, and ensures folding accuracy. Modern equipment is usually equipped with automatic paper feeding and positioning system, and high-speed models can process hundreds of papers per minute, widely used in book and promotional material production, improving production efficiency and product consistency.

[0003] In the traditional fence type paper folding machine, the paper folding thickness is limited by the fixed paper pressing roller gap, and the operator needs to manually adjust the screw or replace the gasket of different thicknesses to adapt to paper of different grammage. This process not only consumes time but also has problems such as low adjustment accuracy and slow response. Especially when processing multiple batches and mixed specifications of paper, the existing mechanical structure cannot realize real-time dynamic adjustment of the paper pressing roller gap, which easily causes paper jam when thick paper passes through, and the crease deviates when thin paper is folded due to the large gap, which seriously affects the folding accuracy and equipment utilization rate. SUMMARY

[0004] Therefore, in order to solve the above problems, the purpose of the utility model is to provide a paper folding machine paper gap adjusting mechanism, which comprises a paper folding machine side plate, a paper pressing roller and an adjusting mechanism. The paper folding machine side plate is provided with an adjusting through hole, and the paper pressing roller comprises a rotating end which penetrates through the adjusting through hole. The adjusting mechanism comprises:

[0005] A paper jam plate is fixed to the side of the paper folding machine side plate away from the paper pressing roller.

[0006] A connecting member is provided, which comprises a self-rotating end, a trigger end and a following end. The self-rotating end is rotatably connected to the paper folding machine side plate, and the following end is rotatably connected to the rotating end.

[0007] An adjustable rod is provided, one end of which is connected to the trigger end, and the other end penetrates through the paper jam plate and is provided with a first pressing block. The paper gap is formed between the first pressing block and the paper jam plate.

[0008] Preferably, the side of the trigger end away from the paper jam plate is provided with a concave block, the end of the adjustable rod away from the paper jam plate penetrates through the trigger end and is provided with a second pressing block, a semicircular member is sleeved on the adjustable rod, the semicircular member is arranged between the second pressing block and the concave block, the semicircular member and the concave block are matched with each other through the arc surface, and the trigger end and the concave block are both provided with a waist round hole for the adjustable rod to penetrate through.

[0009] Preferably, the side plate of the paper folding machine is provided with a fixed box on the side facing the movable rod, and the middle part of the movable rod penetrates the fixed box, and the back of the paper sheet is tightly pressed against the fixed box.

[0010] Preferably, the middle part of the movable rod is provided with a clamping block, a reset spring is arranged between the clamping block and the paper sheet, and a main spring is arranged between the clamping block and the trigger end.

[0011] Preferably, the main spring is provided with a baffle on both sides.

[0012] Preferably, the two sides of the paper sheet extend in the direction away from the fixed box to form a folding edge.

[0013] Preferably, the paper folding machine comprises three paper pressing rollers, and two side plates of the paper folding machine are arranged on the two sides of the paper pressing rollers, and three sets of adjusting mechanisms are arranged on the side plates of the paper folding machine and are matched with the three paper pressing rollers respectively.

[0014] The paper folding machine has the advantages that:

[0015] The paper folding machine provided by the paper folding machine paper gap adjusting mechanism improves the control accuracy of the paper thickness and the equipment adaptability in the paper folding process through the cooperation of the mechanical linkage structure and the self-adaptive adjusting system. When the paper sheets of different thicknesses enter the gap formed by the first pressing block and the paper sheet, the movable rod generates axial displacement with the paper stacking amount, the trigger linkage member rotates around the self-rotation end, and then drives the paper pressing roller to swing synchronously to dynamically adjust the paper passage width, so that the adjustment of the paper folding thickness limit value is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a structural schematic view of the paper folding machine;

[0018] Figure 2 It is a structural schematic view of the paper folding machine;

[0019] Figure 3 It is a structural schematic view of the side plate and the linkage member of the paper folding machine;

[0020] Figure 4 It is a structural schematic view of the side plate and the paper pressing roller of the paper folding machine;

[0021] Figure 5 It is a structural schematic view of the adjusting mechanism;

[0022] Figure 6 Structure diagram of trigger end;

[0023] Figure 7 Structure diagram of card paper board;

[0024] Brief description of drawings: 1, side plate of paper folding machine; 11, adjusting through hole; 2, paper pressing roller; 21, rotating end; 3, card paper board; 31, folding edge; 4, connecting part; 41, trigger end; 411, concave block; 412, semicircular part; 413, waist round hole; 42, self-rotating end; 43, following end; 5, movable rod; 51, first pressing block; 52, second pressing block; 53, clamping block; 54, main spring; 55, reset spring; 56, baffle; 6, fixed box; 7, paper.

[0025] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0027] In the description of the present application, it should be explained that the directions or position relations indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are the directions or position relations shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, 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 inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Embodiment 1:

[0030] Figures 1-7This invention provides a paper gap adjustment mechanism for a folding machine. The paper gap adjustment mechanism is installed inside a grid-type folding machine. The grid-type folding machine includes a side plate 1 and a pressure roller 2. The side plate 1 is provided with an adjustment through hole 11, which allows the pressure roller to swing. The pressure roller 2 includes a rotating end 21 that passes through the adjustment through hole 11. The side plate 1 is used to install other components of the folding machine. The pressure roller 2 is used to construct the travel path for the paper during folding.

[0031] An adjustment mechanism is provided on the side plate 1 of the folding machine. The adjustment mechanism includes a cardboard 3, a linkage 4, and a movable rod 5. The cardboard 3 is fixed to the side of the folding machine side plate 1 facing away from the pressure roller 2. The linkage 4 includes a rotating end 42, a trigger end 41, and a follower end 43. The rotating end 42 is rotatably connected to the folding machine side plate 1, and the follower end 43 is rotatably connected to the rotating end 21. One end of the movable rod 5 is connected to the trigger end 41, and the other end passes through the cardboard 3 and is provided with a first pressure block 51. A paper gap is formed between the first pressure block 51 and the cardboard 3. A certain amount of paper can be stuffed into the paper gap. When more paper is stuffed into the paper gap, the first pressure block 51 moves along with the entire movable rod 5. The other end of the movable rod 5 pulls the trigger end 41 of the linkage 4, causing the linkage 4 to rotate around the rotating end 42. The follower end 43 rotates accordingly, which can drive the pressure roller 2 to swing and adjust its position, changing the paper thickness limit value when the folding machine stacks paper.

[0032] The connection structure between the movable rod 5 and the trigger end 41 is as follows: the side of the trigger end 41 facing away from the cardboard 3 has a recess 411. The end of the movable rod 5 away from the cardboard 3 passes through the trigger end 41 and has a second pressure block 52. A semi-circular part 412 is fitted on the movable rod 5. The semi-circular part 412 is located between the second pressure block 52 and the recess 411. The semi-circular part 412 and the recess 411 cooperate with each other through the arc surface. Both the trigger end 41 and the recess 411 have an oblong hole 413 for the movable rod 5 to pass through. The movable rod 5 only moves axially, while the linkage 4 rotates around the rotating end 42. If the axial hole fit between the movable rod 5 and the trigger end 41 is set too tightly, mechanical interference is likely to occur. The oblong hole 413 on the trigger end 41 and the recess 411 allows the movable rod 5 to swing, and the oblong hole 413 can also limit the swing range of the movable rod 5. This solves the mechanical interference problem and also limits the stroke of the movable rod 5.

[0033] The side plate 1 of the folding machine has a hollow fixing box 6 on the side facing the movable rod 5. The middle of the movable rod 5 passes through the fixing box 6. The fixing box 6 has through holes at both ends for the movable rod 5 to pass through. The through holes cooperate with the movable rod 5 to ensure that the movable rod 5 can only slide along the axial direction. The side of the cardboard 3 facing away from the first pressure block 51 is pressed against the fixing box 6. The fixing box 6 is fixedly connected to the side plate 1 of the folding machine, indirectly fixing the position of the cardboard 3.

[0034] The middle part of the movable rod 5 is provided with a clamping block 53, and a reset spring 55 is arranged between the clamping block 53 and the card paper plate 3. The reset spring 55 is arranged in the fixed box 6 and is used to press the clamping block 53, so that the clamping block 53 and the movable block are quickly reset. The reset action refers to the relative position of the movable rod 5 and the clamping block 53 and the fixed box 6. A main spring 54 is arranged between the clamping block 53 and the trigger end 41 and is used to press the trigger end 41, so that the trigger end 41 quickly returns to the specified position when it is not affected by the movable rod 5. The reset spring 55 and the main spring 54 ensure that when the paper between the first pressing block 51 and the card paper plate 3 is taken out, the parts in the adjusting mechanism can quickly return to the original position. The main spring 54 is provided with a baffle 56 on both sides, which can avoid the axial movement of the main spring 54 into the fixed box 6 or the waist round hole 413 of the trigger end 41.

[0035] The card paper plate 3 is provided with a 30° folding edge 31 extending towards the fixed box 6 on both sides. The end of the folding edge 31 is rounded. The folding edge 31 is used to prevent the paper from falling off due to misalignment and is also used for positioning the paper.

[0036] The fence type paper folding machine has two paper folding machine side plates 1 and three paper pressing rollers 2. In this embodiment, six adjusting mechanisms are arranged correspondingly and are arranged on the two paper folding machine side plates 1. The adjusting mechanisms are arranged in pairs and are connected to the two ends of the paper pressing roller 2.

[0037] Working principle:

[0038] When the operator inserts the paper to be folded into the gap between the first pressing block 51 and the card paper plate 3, the stacking amount of the paper pushes the first pressing block 51 to displace outward, driving the movable rod 5 to slide axially. The axial movement of the movable rod 5 drives the trigger end 41 to rotate around the rotating end 42 of the connecting piece 4 through the cooperation of the second pressing block 52 and the arc surface of the semicircular piece 412. At this time, the waist round hole 413 of the trigger end 41 allows the movable rod 5 to deflect slightly within the swing range to avoid mechanical interference. The rotating movement of the connecting piece 4 is transmitted to the rotating end 21 of the paper pressing roller 2 through the following end 43, forcing the paper pressing roller 2 to swing, thereby changing the relative position of the paper pressing roller 2 and the adjacent components, reducing / increasing the paper passage width to adapt to the increased paper thickness. At the same time, the main spring 54 and the reset spring 55 are compressed, and the baffle 56 on both sides of the main spring 54 limits its axial offset, ensuring the stability of the force transmission direction; when the paper is taken out, the reset spring 55 pushes the reverse movement, driving the movable rod 5 to reset, and the main spring 54 synchronously rebounds to drive the connecting piece 4 to rotate and reset, so that the paper pressing roller 2 returns to the initial position. The six adjusting mechanisms at the two ends of the three paper pressing rollers 2 realize synchronous adjustment of multiple rollers through symmetrical layout, ensuring the consistency of the gap between the folds. The whole process forms a closed loop control of “paper input-mechanical feedback-pressing roller adjustment-paper taking out-elastic reset”, realizing the self-adaptive and accurate adjustment of the paper folding thickness.

[0039] The above only describes optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A paper (7) gap adjustment mechanism for a paper folding machine, characterized in that, The paper folding machine comprises a side plate (1), a paper pressing roller (2) and an adjusting mechanism, the side plate (1) is provided with an adjusting through hole (11), the paper pressing roller (2) comprises a rotating end (21), the rotating end (21) penetrates through the adjusting through hole (11), and the adjusting mechanism comprises: A card paper plate (3) is fixed to one side of the side plate (1) away from the paper pressing roller (2); A connecting member (4) comprises a rotating end (42), a trigger end (41) and a following end (43), the rotating end (42) is rotationally connected with the side plate (1), and the following end (43) is rotationally connected with the rotating end (21); An activity rod (5) is connected with the trigger end (41) at one end and penetrates through the card paper plate (3) and is provided with a first pressing block (51), and a paper (7) gap is formed between the first pressing block (51) and the card paper plate (3).

2. The paper folder paper sheet (7) gap adjustment mechanism according to claim 1, characterized in that, One side of the trigger end (41) away from the card paper plate (3) is provided with a recessed block (411), one end of the activity rod (5) away from the card paper plate (3) penetrates through the trigger end (41) and is provided with a second pressing block (52), a semicircular member (412) is sleeved on the activity rod (5), the semicircular member (412) is arranged between the second pressing block (52) and the recessed block (411), the semicircular member (412) and the recessed block (411) are matched with each other through an arc surface, and the trigger end (41) and the recessed block (411) are both provided with a waist round hole (413) for the activity rod (5) to penetrate through.

3. The paper folder paper sheet (7) gap adjustment mechanism according to claim 2, characterized in that, One side of the side plate (1) towards the activity rod (5) is provided with a fixed box (6), the middle part of the activity rod (5) penetrates through the fixed box (6), and one side of the card paper plate (3) away from the first pressing block (51) abuts against the fixed box (6).

4. The paper folder paper sheet (7) gap adjustment mechanism according to claim 2, characterized by The middle part of the activity rod (5) is provided with a clamping block (53), a reset spring (55) is arranged between the clamping block (53) and the card paper plate (3), and a main spring (54) is arranged between the clamping block (53) and the trigger end (41).

5. The paper folder paper sheet (7) gap adjustment mechanism according to claim 4, characterized in that, The main spring (54) is provided with a baffle (56) on both sides.

6. The paper folder paper sheet (7) gap adjustment mechanism according to claim 1, characterized by The card paper plate (3) is provided with a folding edge (31) extending away from the fixed box (6) on both sides.

7. The paper folder paper sheet (7) gap adjustment mechanism according to claim 1, characterized by The paper folding machine comprises three paper pressing rollers (2), two side plates (1) are arranged on the two sides of the paper pressing rollers (2), and three adjusting mechanisms are arranged on the side plates (1) and matched with the three paper pressing rollers (2).

Images