Paper pulling auxiliary device

Abstract

The utility model relates to the technical field of paper traction machines, and proposes a paper traction auxiliary device, including a base, a transport roller group arranged on the base, and also including: two side clamping devices arranged relatively on the base and located beside the transport roller group, the two side clamping devices are used to clamp the left and right sides of the paper respectively; the side clamping device includes: there are two groups of edge pressing roller groups, the two groups of edge pressing roller groups are arranged up and down, the two groups of edge pressing roller groups are used to clamp the side edges of the paper up and down, and the edge pressing roller group includes: a mounting plate, which is lifted and rotated relative to the base, the mounting plate is located on a vertical plane perpendicular to the upper end face of the base and rotates, and the side of the mounting plate close to the paper has a plurality of fixed shafts, and the plurality of fixed shafts are arranged in an array in sequence and spaced parallel to the paper transportation direction; there are a plurality of paper pressing rollers, which are rotatably sleeved on the fixed shafts, and the paper pressing rollers are used to roll and abut against the surface of the paper. Through the above technical scheme, the curling problem in the paper transportation process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper traction machines, in particular to a paper traction auxiliary device. Background Art

[0002] During the production and storage of paper rolls, the produced paper is wound and reeled by an automatic paper reel. Before entering the automatic paper reel, the paper needs to pass through a traction machine, which uses a transport roller group to transport and pull the paper. However, the paper transportation route is generally long, and the left and right sides of the paper may be lifted up during transportation, and may be crushed, wrinkled, or torn when passing through the transport roller group.

[0003] The prior art discloses a paper traction machine (application number 202021691943.0), which uses a side clamping mechanism to compress and bind the side edges of the paper to reduce curling, but it mainly solves the adaptability problem of the lifting and lowering adjustment. It clamps the side edges of the paper by two side clamping rollers, which plays a certain role in solving the problem of curling on the side edges of the paper. The structure is relatively simple and practical, but the function is also relatively single, and the anti-curling effect is poor. In the prior art, the traction machine has no better solution to the curling problem that occurs during paper transportation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a paper pulling auxiliary device for the above-mentioned technical deficiencies, which solves the curling problem in the paper transportation process.

[0005] The technical solution adopted by the utility model is to provide a paper pulling auxiliary device, comprising: a base, a transport roller group arranged on the base, and the transport roller group is used to transport paper; it is characterized in that it also comprises: a side clamping device, which has two, the two side clamping devices are arranged on the base opposite to each other and are located beside the transport roller group, and the two side clamping devices are used to clamp the left and right sides of the paper respectively; the side clamping device comprises:

[0006] The edge pressing roller group has two groups, the two groups of edge pressing roller groups are arranged up and down, and the two groups of edge pressing roller groups are used to clamp the side edges of the paper up and down. The edge pressing roller group includes:

[0007] A mounting plate is arranged to be lifted and rotated relative to the base, the mounting plate is arranged to rotate on a vertical plane perpendicular to the upper end surface of the base, and a side of the mounting plate close to the paper has a plurality of fixed shafts, and the plurality of fixed shafts are arranged in an array in sequence and spaced apart in parallel to the paper transport direction;

[0008] There are several paper pressing rollers, which are rotatably sleeved on the fixed shaft and are used for rolling against the surface of the paper.

[0009] To further optimize the technical solution, the circumferential side of the paper pressing roller has a plurality of annular grooves; the edge pressing roller group also includes:

[0010] The adhesive ring is sleeved in the card slot, and the outer side of the adhesive ring is used to contact the surface of the paper.

[0011] To further optimize the technical solution, the side of the mounting plate away from the paper has a connecting tube; the side clamping device also includes:

[0012] A mounting seat, arranged on the base;

[0013] A bidirectional screw, rotatably disposed on the mounting seat;

[0014] There are two slide plates, both of which are threadedly connected to the bidirectional screw rod, and the two slide plates move relative to each other;

[0015] There are two buffer plates, and each of the slide plates is provided with a buffer plate for sliding up and down;

[0016] There are two compression springs, one of which is disposed on each of the slide plates, one end of the compression spring acts on the buffer plate, and the other end acts on the slide plate, so as to provide a buffering force when the buffer plate moves toward the slide plate;

[0017] There are two connecting rods, one of which is arranged on one side of each buffer plate, and the connecting pipe is rotatably and slidably sleeved on the connecting rod.

[0018] Further optimizing the technical solution, the side of the connecting pipe has a threaded pipe, and the threaded pipe is connected to the inside of the connecting pipe; further comprising:

[0019] A tightening bolt is threadably connected to the threaded pipe and is used to tighten the connecting rod.

[0020] To further optimize the technical solution, the side clamping device further includes:

[0021] A driving motor is arranged on the mounting seat and is used for driving the bidirectional screw to rotate.

[0022] To further optimize the technical solution, the two side clamping devices are relatively slidably arranged on the base, the base has an adjustment slide groove, and the lower end of the mounting seat has a connecting plate, and further includes:

[0023] A connecting bolt, wherein the connecting bolt is slidably arranged in the adjusting slot, and the connecting bolt passes through the connecting plate and the adjusting slot in sequence from top to bottom;

[0024] A locking nut is located below the adjusting slot and is threadedly connected to the connecting bolt.

[0025] Further optimization of this technical solution also includes:

[0026] The brush ring is in a circular shape and has a plurality of them. Each paper pressing roller is coaxially provided with the brush ring, and the diameter of the brush ring is greater than the diameter of the rubber ring.

[0027] The beneficial effects of the utility model are:

[0028] 1. Two side clamping devices are respectively arranged on both sides of the base to prevent the two sides of the paper from curling, and can also realize the tension adjustment of the paper. Two side pressing rollers are clamped on the upper and lower sides of one side of the paper. The pressing roller rotates with the transportation of the paper to prevent the side of the paper from curling up before entering the pressing roller. Multiple pressing rollers are arranged in the pressing roller group, which has a larger limiting and pressing area for the paper, and more effectively reduces the curling problem of the paper before entering the pressing roller group and after moving out of the pressing roller group.

[0029] 2. The mounting plate is set up for lifting, which is convenient for adjusting to different paper thicknesses, and can realize the tightening adjustment of the paper by lifting. At the same time, the mounting plate rotates on the vertical plane, so that multiple paper pressing rollers rotate on the vertical plane following the buffer plate. At this time, the paper is located between the upper and lower paper pressing rollers. After the paper pressing roller rotates, the straight moving path of the paper is changed, which can play a tensioning role on the paper. The rotation of the mounting plate can realize the tensioning adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 for Figure 1 A schematic diagram of a partially enlarged structure of a side clamping device on one side in the state;

[0032] Figure 3 This is a schematic diagram of the structure of the side clamping device of the utility model;

[0033] Figure 4 This is a schematic diagram of the two sets of edge pressing rollers of the utility model in a "V"-shaped structure;

[0034] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at the AA position;

[0035] Figure 6 for Figure 5 The schematic diagram of the local enlarged structure at position I in the middle;

[0036] Figure 7 This is a schematic diagram of the structure of the buffer plate of the utility model for parallel rotation tensioning;

[0037] Explanation of the marks in the figure: 1. Base; 101. Adjusting slide; 2. Transport roller group; 3. Side clamping device; 301. Edge pressing roller group; 3011. Mounting plate; 3012. Fixed shaft; 3013. Connecting pipe; 3014. Paper pressing roller; 3015. Slot; 3016. Rubber ring; 302. Mounting seat; 3021. Connecting plate; 303. Bidirectional screw; 304. Slide plate; 305. Buffer plate; 3051. Connecting rod; 306. Compression spring; 307. Tightening bolt; 308. Driving motor; 4. Connecting bolt; 5. Brush ring. DETAILED DESCRIPTION

[0038] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0040] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] like Figure 1-7As shown, a paper pulling auxiliary device comprises: a base 1, a transport roller group 2 arranged on the base 1, and the transport roller group 2 is used to transport paper; it also comprises: a side clamping device 3, which has two, the two side clamping devices 3 are relatively arranged on the base 1 and are located beside the transport roller group 2, and the two side clamping devices 3 are respectively used to clamp the left and right sides of the paper; the side clamping device 3 comprises: a pressure roller group 301, which has two groups, and the two pressure roller groups 301 are arranged up and down, and the two pressure roller groups 301 are used to clamp the side edges of the paper up and down, The edge pressing roller group 301 includes: a mounting plate 3011, which is lifted and rotatably arranged relative to the base 1, the mounting plate 3011 is located on a vertical plane perpendicular to the upper end surface of the base 1 and rotates, and the mounting plate 3011 has a plurality of fixed shafts 3012 on the side close to the paper, and the plurality of fixed shafts 3012 are arranged in an array in sequence and parallel to the paper transportation direction; there are a plurality of paper pressing rollers 3014, which are rotatably sleeved on the fixed shafts 3012, and the paper pressing rollers 3014 are used to roll and abut against the surface of the paper.

[0043] When in use, the side clamping devices 3 are respectively arranged on the left and right sides of the base 1. The paper first passes through the side clamping devices 3 and then enters between the transport roller groups 2. The transport roller groups 2 can actively rotate to pull and transport the paper. The rotation of the transport roller groups 2 can be achieved by relying on a power motor. The transport roller groups 2 can have a gap adjustment function to adapt to different paper thicknesses, which is a prior art.

[0044] In the edge pressing roller group 301, the mounting plate 3011 may have multiple fixed shafts 3012, and the paper pressing roller 3014 rotates on the fixed shaft 3012. Taking the setting of three fixed shafts 3012 as an example, three paper pressing rollers 3014 are located at the upper part of one side of the paper, and three paper pressing rollers 3014 are located at the lower part of the side of the paper. The upper and lower paper pressing rollers 3014 can be opposite to each other or staggered, so as to achieve clamping of the paper in the upper and lower directions to prevent the paper from curling, and the clamping coverage area is longer, and the anti-curling effect is better.

[0045] like Figure 7 As shown, the mounting plate 3011 is rotated, and the three paper pressing rollers 3014 follow, and the upper and lower mounting plates 3011 remain parallel, and the paper still passes between the upper and lower pressure roller groups 301. Taking the mounting plate 3011 as an example where the rotation axis is located in the middle of the mounting plate 3011, the front and rear pressure rollers 3014 rise and fall in height (taking the paper transportation direction as the front and rear direction, and taking the side clamping device 3 being arranged on the front side of the transportation roller group 2 as an example), the paper transportation path is bent from the original relatively straight path at the position of the pressure roller group 301, and the path side is long, which has a tensioning effect on the paper in the transportation direction. The tensioning use of the side clamping device 3 can be active tensioning or adaptive tensioning, which reduces paper slack, is beneficial to reducing the curling of the side edges of the paper, is beneficial to reducing paper wrinkles, and is also beneficial to the subsequent automatic paper rolling and winding work to be relatively smooth.

[0046] When the number of paper pressing rollers 3014 needs to be reduced, the mounting plate 3011 can be rotated to adjust the number. For example, the rotation axis of the mounting plate 3011 can be coaxial with the fixed axis 3012 at the most side. When the mounting plate 3011 rotates, the height position of the coaxial fixed axis 3012 remains unchanged, and the other fixed axes 3012 rotate to raise or lower. At this time, the paper pressing rollers 3014 on the other fixed axes 3012 can be away from the paper. Figure 4 As shown, the edge pressing rollers 301 on the upper and lower sides can be arranged in a "V" shape, and the paper enters the edge pressing rollers 301 from the side with the larger opening of the "V" shape. The maximum interval of the "V" opening is greater than the thickness of the paper, but the gap is small, which can limit the paper and reduce the up and down shaking of the paper, and can reduce the side breakage of the paper caused by the up and down shaking after the paper enters the paper pressing roller 3014 and is clamped. The rotating axis of the mounting plate 3011 can also be concentric with the middle fixed axis 3012, and after rotating, it can be raised and lowered to make the lower paper pressing roller 3014 contact the paper.

[0047] The mounting plate 3011 can be rotated in various ways, and can be locked after manual rotation. The upper and lower mounting plates 3011 can rotate synchronously or be independently controlled.

[0048] The two side clamping devices 3 are relatively arranged on the left and right sides of the base 1, and can be in a symmetrical relationship. The paper pressing roller 3014 is rotatably sleeved on the fixed shaft 3012 and can be rotatably connected through a bearing.

[0049] Furthermore, the circumferential side of the paper pressing roller 3014 has a plurality of annular grooves 3015 ; the edge pressing roller assembly 301 further includes: a rubber ring 3016 , which is sleeved in the groove 3015 , and the outer side of the rubber ring 3016 is used to contact the surface of the paper.

[0050] When in use, the setting of the rubber ring 3016 can increase the friction between the paper pressing roller 3014 and the paper, improve the pressing ability, and reduce the surface accuracy requirements of the paper pressing roller 3014. The setting of the rubber ring 3016 can greatly improve the limiting ability of the left and right directions of the paper through the friction effect. A plurality of card slots 3015 are provided, and the number of rubber rings 3016 can be set as needed to adjust the friction force, and the adjustment is more convenient. The rubber ring 3016 can be made of flexible material, and the rubber ring 3016 can be slightly protruded from the paper pressing roller 3014.

[0051] Furthermore, the side of the mounting plate 3011 away from the paper has a connecting tube 3013; the side clamping device 3 also includes:

[0052] The mounting seat 302 is arranged on the base 1; the bidirectional screw 303 is rotatably arranged on the mounting seat 302; there are two slide plates 304, and the two slide plates 304 are both threadedly connected to the bidirectional screw 303, and the two slide plates 304 move relative to each other; there are two buffer plates 305, and each slide plate 304 is provided with a buffer plate 305 that slides up and down; there are two compression springs 306, and each slide plate 304 is provided with a compression spring 306, one end of the compression spring 306 acts on the buffer plate 305, and the other end acts on the slide plate 304, which is used to provide a buffering force when the buffer plate 305 moves toward the slide plate 304; there are two connecting rods 3051, and each buffer plate 305 is provided with a connecting rod 3051 on one side, and the connecting pipe 3013 is rotatably and slidably sleeved on the connecting rod 3051.

[0053] When in use, the two-way screw rod 303 can drive the two slide plates 304 to move closer or farther from each other when rotating, thereby adjusting the paper pressing interval between the upper and lower edge pressing rollers 301. When using different paper thicknesses, a compression spring 306 is arranged between the slide plate 304 and the buffer plate 305, so that after the paper pressing rollers 3014 clamp and press the paper, the compression spring 306 provides a buffer force. In the case of uneven paper thickness or foreign matter, the interval between the upper and lower paper pressing rollers 3014 can be increased. The connecting tube 3013 on the mounting plate 3011 is rotatably and slidably connected to the connecting rod 3051, which can realize the rotation of the mounting plate 3011 and the sliding relative to the buffer plate 305, so that the paper pressing roller 3014 can be adjusted in the left and right directions, and the contact length between the paper pressing roller 3014 and the left and right squares of the paper side can be changed.

[0054] Furthermore, the side of the connecting pipe 3013 is provided with a threaded pipe, which is communicated with the inside of the connecting pipe 3013 ; and further includes: a tightening bolt 307 which is threadedly connected with the threaded pipe and is used to tighten the connecting rod 3051 .

[0055] When in use, after the sliding or rotation adjustment between the connecting pipe 3013 and the connecting rod 3051 is completed, the tightening bolt 307 can be used for locking.

[0056] Furthermore, the side clamping device 3 also includes: a driving motor 308, which is arranged on the mounting seat 302 and is used to drive the bidirectional screw 303 to rotate.

[0057] When in use, the bidirectional screw 303 can be rotated to adjust the interval between the upper and lower pressure roller groups 301. It can be adjusted by manual rotation, and the bidirectional screw 303 can also be driven to rotate by setting a drive motor 308. The drive motor 308 can use a servo motor to achieve more precise rotation control.

[0058] The mounting seat 302 may be a box structure, the driving motor 308, the bidirectional screw 303, the compression spring 306, the buffer plate 305 and the slide plate 304 may all be located inside the mounting seat 302, and the connecting rod 3051 may pass through and remove the side wall of the box structure and slide up and down.

[0059] Furthermore, the two side clamp devices 3 are relatively slidably arranged on the base 1, and the base 1 has an adjusting groove 101. The lower end of the mounting seat 302 has a connecting plate 3021, and also includes: a connecting bolt 4, the connecting bolt 4 is slidably arranged in the adjusting groove 101, and the connecting bolt 4 passes through the connecting plate 3021 and the adjusting groove 101 from top to bottom in sequence; a locking nut, located below the adjusting groove 101, and threadedly connected to the connecting bolt 4.

[0060] When in use, the side clamping device 3 is slidably arranged on the base 1 in a direction perpendicular to the paper transport direction (i.e., the left-right direction), and the interval between the two side clamping devices 3 can be changed to adapt to papers of different widths. After the connecting bolt 4 passes through the connecting plate 3021 and the adjusting slide 101, it can be connected with a locking bolt to achieve locking positioning. After loosening the locking nut, the mounting seat 302 can slide along the adjusting slide 101. The adjusting slide 101 is arranged in the left-right direction and passes through the base 1 from top to bottom. If the connecting bolt 4 is located above the base 1, then the locking bolt can be located below the base 1. The connecting bolt 4 and the locking bolt are fixed by clamping the base 1. It is a conventional technology to lock the connecting bolt 4 with a locking bolt. The locking bolt is not shown in the attached drawings, and it can be realized by those skilled in the art.

[0061] Furthermore, it also includes: a brush ring 5 in a circular ring shape, with a plurality of them, each of the paper pressing rollers 3014 is coaxially provided with a brush ring 5 , and the diameter of the brush ring 5 is greater than the diameter of the rubber ring 3016 .

[0062] When in use, the brush ring 5 can be sleeved on the paper pressing roller 3014. When the paper pressing roller 3014 moves up and down for debugging, the brush ring 5 can first contact the paper in the transport state, drive the paper pressing roller 3014 to rotate, reduce the speed difference when the static paper pressing roller 3014 directly and instantly clamps the paper in the transport state, which is beneficial to protect the paper. The brush ring 5 has a plurality of bristles with relatively low hardness along the circumference, and the paper is less damaged when in contact with the paper. The brush ring 5 can be arranged at the end of the paper pressing roller 3014.

[0063] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A paper pulling auxiliary device, comprising: A base (1), a transport roller group (2) arranged on the base (1), the transport roller group (2) being used to transport paper; characterized in that it also includes: a side clamping device (3), having two, the two side clamping devices (3) being arranged on the base (1) opposite to each other and located beside the transport roller group (2), the two side clamping devices (3) being used to clamp the left and right sides of the paper respectively; the side clamping device (3) comprises: The edge pressing roller group (301) comprises two groups, the two groups of edge pressing roller groups (301) are arranged up and down, and the two groups of edge pressing roller groups (301) are used to clamp the side edges of the paper up and down. The edge pressing roller group (301) comprises: The mounting plate (3011) is arranged to be lifted and rotated relative to the base (1); the mounting plate (3011) is arranged to rotate on a vertical plane perpendicular to the upper end surface of the base (1); a side of the mounting plate (3011) close to the paper has a plurality of fixed shafts (3012); the plurality of fixed shafts (3012) are arranged in an array in sequence and spaced apart from each other in parallel with the paper transport direction; There are a plurality of paper pressing rollers (3014), each of which is rotatably sleeved on the fixed shaft (3012), and each of which is used to roll and abut against the surface of the paper.

2. A paper pulling auxiliary device according to claim 1, characterized in that: The paper pressing roller (3014) has a plurality of annular grooves (3015) on the circumferential side surface; the edge pressing roller group (301) further comprises: The adhesive ring (3016) is sleeved in the card slot (3015), and the outer side surface of the adhesive ring (3016) is used to contact the surface of the paper.

3. A paper pulling auxiliary device according to claim 1, characterized in that: The side of the mounting plate (3011) away from the paper is provided with a connecting pipe (3013); the side clamping device (3) further comprises: A mounting seat (302) arranged on the base (1); A bidirectional screw (303) rotatably mounted on the mounting seat (302); There are two slide plates (304), both of which are threadedly connected to the bidirectional screw rod (303), and the two slide plates (304) move relative to each other; There are two buffer plates (305), and each of the slide plates (304) is provided with a buffer plate (305) that slides up and down; There are two compression springs (306), one of which is disposed on each of the slide plates (304); one end of the compression spring (306) acts on the buffer plate (305), and the other end of the compression spring (306) acts on the slide plate (304), so as to provide a buffering force when the buffer plate (305) moves toward the slide plate (304); There are two connecting rods (3051), one of which is disposed on one side of each buffer plate (305), and the connecting pipe (3013) is rotatably and slidably sleeved on the connecting rod (3051).

4. A paper pulling auxiliary device according to claim 3, characterized in that: The side of the connecting pipe (3013) is provided with a threaded pipe, and the threaded pipe is connected to the inside of the connecting pipe (3013); and further comprising: A tightening bolt (307) is threadedly connected to the threaded pipe and is used to tighten the connecting rod (3051).

5. A paper pulling auxiliary device according to claim 3, characterized in that: The side clamping device (3) further comprises: A driving motor (308) is disposed on the mounting seat (302) and is used to drive the bidirectional screw (303) to rotate.

6. A paper pulling auxiliary device according to claim 3, characterized in that: The two side clamping devices (3) are relatively slidably arranged on the base (1), the base (1) has an adjustment slide groove (101), the lower end of the mounting seat (302) has a connecting plate (3021), and further comprises: A connecting bolt (4), wherein the connecting bolt (4) is slidably disposed in the adjusting slide groove (101), and the connecting bolt (4) passes through the connecting plate (3021) and the adjusting slide groove (101) in sequence from top to bottom; A locking nut is located below the adjusting slide groove (101) and is threadedly connected to the connecting bolt (4).

7. A paper pulling auxiliary device according to claim 2, characterized in that: Also includes: The brush ring (5) is in the shape of a circular ring and has a plurality of them. Each paper pressing roller (3014) is coaxially provided with the brush ring (5), and the diameter of the brush ring (5) is greater than the diameter of the rubber ring (3016).

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