Printing paper winding device

Abstract

The utility model discloses a printing paper winding device, which relates to the technical field of printing paper winding devices and comprises a winding drum, two ends of the outer wall of the winding drum are rotatably connected with protective discs, and the protective discs are used for shielding and protecting two end faces of printing paper wound on the outer side of the winding drum. A side face protection assembly is arranged between the two protection discs and used for protecting the side face, wound on the outer side of the winding drum, of the printing paper. By arranging the protection disc and the side face protection assembly, the two end faces and the outer side face of the rolled printing paper are shielded and protected, the problem of damage caused by collision and contact of the printing paper and an external object in the transfer process is effectively solved, and the transfer safety of the printing paper is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing paper winding devices, in particular to a printing paper winding device. Background Art

[0002] Printing paper is a general term for paper used for various printed materials, such as letterpress paper, offset printing paper, high-grade glossy cardboard, newsprint, writing paper, etc. The produced printing paper will first be rolled into a large roll by a winding device, and then packaged, transferred and transported to various processing factories.

[0003] The existing printing paper winding is mostly done by a reel that is sleeved on the outside of the air shaft on the winding device, and the reel is fixed by tensioning the air shaft. Then the driving structure on the winding device drives the air shaft to rotate and drives the reel to rotate, so as to reel the printing paper. After the printing paper is wrapped and rolled on the outside of the reel, there is no unlimited protection structure at both ends and the outer surface of the printing paper. During the transfer to the packaging process and the subsequent transfer and transportation process, the printing paper is very likely to be damaged due to collision. Based on this, a printing paper winding device is provided. Utility Model Content

[0004] The purpose of the present utility model is to provide a printing paper winding device in order to solve the above-mentioned problems.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a printing paper winding device, comprising a winding drum, wherein protective discs are rotatably connected to both ends of the outer wall of the winding drum, and the protective discs are used to shield and protect the two end surfaces of the printing paper wound on the outside of the winding drum; a side protection assembly is provided between the two protective discs, and the side protection assembly is used to protect the side surfaces of the printing paper wound on the outside of the winding drum;

[0006] The side protection assembly includes an arc-shaped baffle, an arc-shaped contraction groove, a clamping round rod, and an N-shaped spring piece;

[0007] The arc-shaped baffles are grouped in pairs and multiple groups are provided. The multiple groups of arc-shaped baffles are distributed in a circle and fixed between the two protective discs. The annular structure composed of the multiple groups of arc-shaped baffles is used to protect the side of the printing paper.

[0008] The arc-shaped shrinkage groove is opened inside the arc-shaped baffle and passes through the side where the two arc-shaped baffles are close to each other. The clamping rod is slidably installed on the inside of the arc-shaped shrinkage groove and protrudes to the outside of the arc-shaped baffle. The N-type spring piece is arranged on the inside of the arc-shaped shrinkage groove and is located between one side of the clamping rod and the side of the inner wall of the arc-shaped shrinkage groove. The N-type spring piece is used to provide extrusion force for the clamping rod. The two clamping rods are close to each other to provide clamping force for the printed paper passing through the middle of the two clamping rods.

[0009] As a further solution of the present invention: an arc-shaped groove is formed on the outer wall of the reel-up drum between the two protective discs, and a limit strip is provided on the inner side of the arc-shaped groove, and the two ends of the limit strip are fixedly connected to the two ends of the inner wall of the arc-shaped groove;

[0010] The end of the printing paper passes through the gap between the arc groove and the limiting block bar and is bent, so as to realize the limiting operation between the end of the printing paper and the winding drum.

[0011] As a further solution of the present invention: there are multiple arc-shaped grooves and limit bars and they are evenly distributed along the circumference of the outer wall of the reel, and the number of groups of the side protection components is less than the number of arc-shaped grooves and limit bars.

[0012] As a further solution of the present invention: a positioning slot is provided on the outer wall of one end of the two protective discs away from each other, and a plurality of the positioning slots are provided and evenly distributed around the circumference.

[0013] As a further solution of the present invention: both ends of the winding drum pass through the protective disc and are connected to the limiting circular block, the limiting circular block is fitted to the end face of the protective disc, and the end face of the limiting circular block is provided with a threaded hole passing through to the other end of the limiting circular block, which is threadedly connected to the threaded hole by a fastening bolt and tightened to fit the end face of the protective disc, so as to achieve mutual locking between the limiting circular block and the protective disc.

[0014] As a further solution of the present invention: a plurality of threaded holes are provided, and the plurality of threaded holes are evenly distributed around the circumference.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By setting up protective discs and side protection components, the two end faces and outer sides of the rolled printing paper are shielded and protected, effectively avoiding damage caused by collision and contact between the printing paper and external objects during the transfer process, and further improving the transfer safety of the printing paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 For the utility model Figure 1 A magnified view of the position in the middle;

[0019] Figure 3 This is a structural sectional view of the utility model;

[0020] Figure 4 For the utility model Figure 2 Enlarged view of position B in the middle;

[0021] Figure 5 For the utility model Figure 2 Enlarged view of position C in the middle.

[0022] In the figure: 1. Rewinding drum; 2. Protective disc; 3. Side protection assembly; 301. Arc baffle; 302. Arc shrinkage groove; 303. Clamping rod; 304. N-type spring; 4. Limiting round block; 5. Threaded hole; 6. Fastening bolt; 7. Positioning slot; 8. Arc groove; 9. Limiting bar. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 In an embodiment of the present invention, a printing paper winding device includes a winding drum 1, with protective discs 2 rotatably connected to both ends of the outer wall of the winding drum 1. The protective discs 2 are used to shield and protect the two end surfaces of the printing paper wound on the outside of the winding drum 1. A side protection component 3 is provided between the two protective discs 2. The side protection component 3 is used to protect the side surfaces of the printing paper wound on the outside of the winding drum 1.

[0025] The side protection assembly 3 includes an arc-shaped baffle 301, an arc-shaped contraction groove 302, a clamping rod 303, and an N-shaped spring piece 304;

[0026] The arc baffles 301 are grouped in pairs and multiple groups are provided. The multiple groups of arc baffles 301 are distributed in a circle and fixed between the two protective discs 2. The annular structure formed by the multiple groups of arc baffles 301 is used to protect the side of the printing paper.

[0027] The arc-shaped contraction groove 302 is formed inside the arc-shaped baffle 301 and extends to the side where the two arc-shaped baffles 301 are close to each other. The clamping rod 303 is slidably mounted on the inner side of the arc-shaped contraction groove 302 and protrudes to the outer side of the arc-shaped baffle 301. The N-shaped spring piece 304 is provided inside the arc-shaped contraction groove 302 and is located between one side of the clamping rod 303 and the inner wall side of the arc-shaped contraction groove 302. The N-shaped spring piece 304 is used to provide an extrusion force for the clamping rod 303. The two clamping rods 303 are close to each other to provide a clamping force for the printed paper passing through the middle of the two clamping rods 303.

[0028] The outer wall of the receiving tube 1 is provided with an arc-shaped groove 8 in the middle of the two protective discs 2, and a limit stop bar 9 is provided on the inner side of the arc-shaped groove 8. The two ends of the limit stop bar 9 are fixedly connected to the two ends of the inner wall of the arc-shaped groove 8.

[0029] The end of the printing paper passes through the gap between the arc groove 8 and the limit stop bar 9 and is bent to achieve the limiting operation of the end of the printing paper and the winding drum 1;

[0030] The outer walls of the two protective discs 2 at one end away from each other are provided with positioning slots 7, and there are multiple positioning slots 7 evenly distributed around the circumference;

[0031] Both ends of the winding drum 1 pass through the protective disc 2 and are connected to the limiting block 4. The limiting block 4 fits the end face of the protective disc 2, and the end face of the limiting block 4 is provided with a threaded hole 5 that passes through to the other end of the limiting block 4. The fastening bolt 6 is threadedly connected to the threaded hole 5 and tightened to fit the end face of the protective disc 2, so as to realize the mutual locking of the limiting block 4 and the protective disc 2.

[0032] In this embodiment, when the printing paper is rolled up by the rolling device, the operation steps are as follows:

[0033] First, the entire device is sleeved onto the outside of the pneumatic shaft of the rewinding device through the rewinding drum 1 (it should be noted that the limiting circle 4 is sleeved and fixed to the outside of the rewinding drum 1, the two ends of the rewinding drum 1 are in a conductive state, and at this time, no fastening bolts 6 are installed in the threaded holes 5, that is, the rewinding drum 1 and the protective disc 2 can rotate freely relative to each other), and then the pneumatic shaft is tightened to fix the rewinding drum 1 (it should be noted that a positioning column that is engaged with the positioning slot 7 is pre-installed on the rewinding device, and its positioning column shape matches the shape of the inner wall of the positioning slot 7. The positioning column and the rewinding device are then bolted or welded. When the rewinding drum 1 is sleeved onto the outside of the pneumatic shaft, the positioning column is engaged in a positioning slot 7 to limit the rotation of the protective disc 2, so that the protective disc 2 remains stationary during the rewinding process);

[0034] Next, the end of the printing paper to be wound is passed through the middle of a set of arc-shaped baffles 301 and pulled through the middle of the arc-shaped groove 8 and the limit stop bar 9. Finally, the end of the printing paper is bent in the opposite direction so that it overlaps the outside of the limit stop bar 9. The air shaft is then rotated several times to drive the winding drum 1 to rotate. At this point, the end of the printing paper is wound and fixed on the outside of the winding drum 1.

[0035] After that, the reel-up device drive structure can be activated to drive the pneumatic shaft to rotate, and the pneumatic shaft drives the reel-up drum 1 to rotate to reel in the printing paper. During this process, the printing paper is stretched tight, which can squeeze the clamping rod 303 in contact with the lower surface of the printing paper. Under this squeezing force, the clamping rod 303 shrinks into the arc-shaped contraction groove 302, and squeezes the N-type spring 304 to further shrink, thereby increasing the distance between the two clamping rods 303, so as not to affect the movement of the printing paper. (It should be noted that the reel-up device and the pneumatic shaft are conventional devices in the prior art, and therefore they are not described in detail.)

[0036] After the rewinding is completed, the printing paper can be cut along the outer position of the arc-shaped baffle 301. At this time, the printing paper releases the pressure on the clamping rod 303, and the clamping rod 303 is ejected under the elastic force of the N-type spring 304. The two clamping rods 303 move closer to each other to clamp the printing paper, thereby preventing the rear end of the printing paper from being loose.

[0037] Finally, before removing the entire device from the inflatable shaft, the fastening bolt 6 can be threadedly connected to the threaded hole 5 and tightened so that the end of the fastening bolt 6 is tightly fitted against the end surface of the protective disc 2. This can fix the reel 1 and the protective disc 2 to each other, thereby preventing the reel 1 from rotating during subsequent transfer, and ensuring that the rear end of the printing paper is stably clamped by the two clamping rods 303.

[0038] Through the coordination of the above multiple parts, the shielding and protection of the two end faces and the outer side faces of the rolled printing paper are achieved, effectively avoiding damage caused by collision and contact between the printing paper and external objects during the transfer process, and further improving the transfer safety of the printing paper. It should also be noted that after the printing paper is unrolled and used, this device can be recycled.

[0039] Please refer to Figure 1 、 Figure 3 、 Figure 4 There are multiple arc-shaped grooves 8 and limit strips 9 and they are evenly distributed along the circumference of the outer wall of the winding drum 1. The number of side protection components 3 is less than the number of arc-shaped grooves 8 and limit strips 9.

[0040] In this embodiment, the structure of the plurality of arc-shaped grooves 8 and the limit stop bar 9 makes it easier to install the end of the printing paper and the take-up drum 1.

[0041] The number of side protection components 3 is less than the number of arc grooves 8 and limit bars 9, mainly to make the gap between the two side protection components 3 larger, thus providing enough operating space for the installation of the end of the printing paper.

[0042] Please refer to Figures 1-2There are multiple threaded holes 5, and the multiple threaded holes 5 are evenly distributed around the circumference.

[0043] In this embodiment, when the fastening bolt 6 is installed, the fastening bolt 6 can be threadedly connected to any threaded hole 5, which further improves the convenience of device operation.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printing paper winding device, comprising a winding drum (1), characterized in that: The outer wall of the reel (1) is rotatably connected to protective discs (2), and the protective discs (2) are used to shield and protect the two end surfaces of the printing paper reeled on the outside of the reel (1). A side protection component (3) is provided between the two protective discs (2), and the side protection component (3) is used to protect the side surfaces of the printing paper reeled on the outside of the reel (1); The side protection assembly (3) comprises an arc-shaped baffle (301), an arc-shaped contraction groove (302), a clamping rod (303), and an N-shaped spring piece (304); The arc-shaped baffles (301) are grouped in pairs and multiple groups are provided. The multiple groups of arc-shaped baffles (301) are distributed in a circumferential manner and fixed between the two protective discs (2). The annular structure formed by the multiple groups of arc-shaped baffles (301) is used to protect the side of the printing paper. The arc-shaped shrinkage groove (302) is opened inside the arc-shaped baffle (301) and penetrates to the side where the two arc-shaped baffles (301) are close to each other. The clamping rod (303) is slidably installed on the inside of the arc-shaped shrinkage groove (302) and protrudes to the outside of the arc-shaped baffle (301). The N-shaped spring piece (304) is arranged on the inside of the arc-shaped shrinkage groove (302) and is located between one side of the clamping rod (303) and the inner wall side of the arc-shaped shrinkage groove (302). The N-shaped spring piece (304) is used to provide an extrusion force for the clamping rod (303). The two clamping rods (303) are close to each other and are used to provide a clamping force for the printing paper passing through the middle of the two clamping rods (303).

2. A printing paper winding device according to claim 1, characterized in that: The outer wall of the reel (1) is provided with an arc-shaped groove (8) in the middle of the two protective discs (2), and a limit strip (9) is provided on the inner side of the arc-shaped groove (8), and the two ends of the limit strip (9) are fixedly connected to the two ends of the inner wall of the arc-shaped groove (8); The end of the printing paper passes through the gap between the arc groove (8) and the limit stop bar (9) and is bent, thereby realizing the limiting operation of the end of the printing paper and the winding drum (1).

3. A printing paper winding device according to claim 2, characterized in that: The arc-shaped grooves (8) and the limiting strips (9) are provided in a plurality and are evenly distributed along the circumference of the outer wall of the reeling drum (1), and the number of the side protection components (3) is less than the number of the arc-shaped grooves (8) and the limiting strips (9).

4. The printing paper winding device according to claim 1, characterized in that: A positioning slot (7) is provided on the outer wall of one end of the two protective discs (2) that is away from each other. A plurality of positioning slots (7) are provided and are evenly distributed around the circumference.

5. The printing paper winding device according to claim 1, characterized in that: Both ends of the reel (1) pass through the protective disc (2) and are connected to the limiting circular block (4). The limiting circular block (4) is fitted to the end face of the protective disc (2), and the end face of the limiting circular block (4) is provided with a threaded hole (5) that passes through to the other end of the limiting circular block (4). The fastening bolt (6) is threadedly connected to the threaded hole (5) and tightened to fit the end face of the protective disc (2), so as to realize mutual locking between the limiting circular block (4) and the protective disc (2).

6. The printing paper winding device according to claim 5, characterized in that: A plurality of threaded holes (5) are provided, and the plurality of threaded holes (5) are evenly distributed around the circumference.

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