Paper unwinding mechanism

Abstract

The utility model discloses a paper unreeling mechanism in the field of unreeling mechanisms, which comprises a rack, one end of the rack is provided with a feeding base used for placing roll paper, the rack is provided with a plurality of guide rollers, two ends of the guide rollers respectively penetrate through long holes reserved on the rack to extend outwards, and the guide rollers are arranged on the rack. A plurality of long holes are formed in the rack, a plurality of sliding rails distributed on the two sides of the long holes are arranged on the outer side of the rack, movable sliding blocks are jointly installed on the sliding rails arranged on the two sides of the same long hole, the sliding blocks are used for being supported at the two ends of a guide roller, a plurality of pushing air cylinders and a controller are installed on the rack, and the pushing air cylinders are connected with and push the corresponding sliding blocks. The controller is connected with and controls the pushing air cylinders arranged on the two sides of the same guide roller at the same time, a fixing roller used for leveling paper is installed on the machine frame, and the fixing roller is arranged above the guide roller close to one end of the feeding base. The movable guide roller is arranged, accurate control is conducted through the pushing air cylinder, and the tension of paper in the unwinding process can be adjusted according to the requirement of a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paper unwinding mechanism technical field, concretely is a paper unwinding mechanism. BACKGROUND

[0002] In paper processing, printing, packaging and other industries, paper unwinding mechanism is the important equipment that cannot be dispensed with. The traditional paper unwinding mechanism often adopts fixed guide structure, and the tension of paper is difficult to effectively adjust in the unwinding process, which leads to the problems such as paper crease, curling and other problems in the transmission process, seriously affecting the quality and production efficiency of products.

[0003] In order to overcome the deficiency of traditional paper unwinding mechanism in tension adjustment, the paper unwinding mechanism appearing on the market usually tries to adjust the tension of paper by setting elastic element or adjusting device, however, these methods are often complex in operation, and the adjusting precision is not high, which is easy to affect the stable transmission of paper. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiency of prior art, the utility model provides a paper unwinding mechanism, which can effectively solve the technical problem that the tension of the paper roll unwinding mechanism is difficult to effectively adjust.

[0005] The utility model solves the technical problems by adopting the technical scheme that

[0006] A paper unwinding mechanism, comprising a rack, one end of the rack is provided with a feeding base for placing a paper roll.

[0007] A plurality of guide rollers are installed on the rack, the two ends of the guide rollers respectively extend outward through the long holes reserved on the rack, a plurality of slide rails are arranged on the outer side of the rack and distributed on both sides of the long holes, the slide rails arranged on both sides of the same long hole are jointly provided with movable sliding blocks, and the sliding blocks are used for supporting the two ends of the guide rollers.

[0008] A plurality of push air cylinders and a controller are installed on the rack, the push air cylinders are connected and push the corresponding sliding blocks, so that the guide rollers arranged on the sliding blocks move along the direction of the slide rails, and the controller is connected and controls the push air cylinders arranged on both sides of the same guide roller.

[0009] A fixing roller for flattening paper is installed on the rack, and the fixing roller is arranged above the guide roller close to one end of the feeding base, and gradually approaches the lower side of the fixing roller when the guide roller moves upward.

[0010] Further, a feeding groove is formed in the side surface of the feeding base, and the feeding groove is in communication with the top of the feeding base.

[0011] Further, the long holes are arranged transversely on the rack, and the long holes are arranged longitudinally.

[0012] Further, the side surface of the sliding block is provided with a mounting groove for mounting the guide roller, and the mounting groove is communicated with the top of the sliding block.

[0013] Further, the number of the pushing cylinders corresponds to the number of the sliding blocks, and the side surface of the sliding block is provided with a protruding part for inserting the pushing cylinder.

[0014] Further, the rack is provided with an adjusting panel connected with all the controllers.

[0015] Compared with the prior art, the beneficial effects of the paper sheet tension adjusting device are as follows:

[0016] The movable guide roller is accurately controlled by the pushing cylinder, and the tension of the paper sheet during the unwinding process can be adjusted according to the user's demand, when the tension of the paper sheet is too large or too small, the position of the guide roller is only needed to be adjusted, so that the tension is adjusted, and the stable state of the paper sheet during the transmission process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0018] Figure 2 It is the embodiment of the utility model Figure 1 It is an enlarged schematic diagram of the structure of part A in the embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal connection structure of the rack in the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the sliding block structure in the embodiment of the utility model;

[0021] Reference numerals in the drawings:

[0022] 1-rack, 2-feeding base, 3-guide roller, 4-elongated hole, 5-sliding rail, 6-sliding block, 7-pushing cylinder, 8-controller, 9-fixing roller, 10-feeding groove, 11-mounting groove, 12-protruding part, 13-adjusting panel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] For example, Figures 1-4The utility model provides a paper unwinding mechanism mainly used for the flatness of the paper in the conveying process, which is convenient for the subsequent processing of the paper and helps to improve the processing effect of the paper.

[0025] The specific structure of the unwinding mechanism mainly comprises a rack 1, which is used as the support frame of the whole mechanism and is provided with a symmetrical structure on both sides to ensure the stable installation and operation of all components. An upper feeding base 2 for placing the paper roll is arranged at one end of the rack 1. In order to facilitate the placement and replacement of the paper roll, a discharging groove 10 is formed in the side of the upper feeding base 2, which is communicated with the top of the upper feeding base 2, so that the operator can easily push or pull the paper roll into or out of the upper feeding base 2.

[0026] In order to guide the unwinding process of the paper, four guide rollers 3 are arranged on the rack 1, the two ends of the guide rollers 3 extend outward through the long holes 4 reserved on the rack 1, and the long holes 4 are arranged transversely and longitudinally on the rack 1. This design allows the guide rollers 3 to have a degree of freedom in the vertical direction.

[0027] The slide rails 5 are arranged on the outer side of the rack 1 and distributed on both sides of the long holes 4. The slide rails 5 arranged on the same side of the long hole 4 are jointly provided with movable sliding blocks 6, which are used to support the two ends of the guide rollers 3. An installation groove 11 for placing and installing the guide rollers 3 is formed in the side of the sliding block 6, which is communicated with the top of the sliding block 6, so that the guide rollers 3 can be stably installed on the sliding block 6. At this time, the guide rollers 3 will move synchronously with the sliding blocks 6 on the slide rails 5, achieving the effect of adjusting the position.

[0028] In order to provide the power to push and adjust the sliding blocks 6 and make the guide rollers 3 move up and down, the same number of push cylinders 7 as the sliding blocks 6 are installed on the rack 1. The push cylinders 7 are connected to and push the corresponding sliding blocks 6, so that the guide rollers 3 arranged on the sliding blocks 6 move along the direction of the slide rails 5. When connected, each sliding block 6 is connected to one push cylinder 7, and a protruding part 12 for inserting and installing the push cylinder 7 is arranged on the side of the sliding block 6, which facilitates the installation of the push cylinder 7. Four controllers 8 are also installed on the rack 1, each of which controls the push cylinders 7 on both sides of one guide roller 3, ensuring that the guide rollers 3 remain horizontal when moving up and down.

[0029] A fixed roller 9 for flattening the paper is also arranged on the rack 1, above the guide roller 3 close to one end of the upper feeding base 2. When the guide roller 3 moves up under the action of the push cylinder 7, it will gradually approach the lower side of the fixed roller 9, thereby flattening the paper through the pressure difference between the two.

[0030] For the convenience of operation and control, the adjusting panel 13 is arranged on the frame 1. The adjusting panel 13 is connected with all the controllers 8, so that the operator can conveniently control the up-down movement of each guide roller 3 through the adjusting panel 13.

[0031] When the paper needs to be unwound, the user first controls the corresponding push cylinder 7 to work through the adjusting panel 13, so that the guide roller 3 is lifted to the appropriate position along the slide rail 5. Then, the paper reel starts to be unwound on the feeding base 2, and the paper is flattened by the fixed roller 9 and guided by the guide roller 3, and finally output as flat paper. By adjusting the height of different guide rollers 3, the tension of the paper can be adjusted and the control of the paper path can be realized.

[0032] Compared with the prior art, the technical scheme can adjust the tension of the paper during the unwinding process according to the user's demand by arranging the movable guide roller 3 and accurately controlling the push cylinder 7. When the paper tension is too large or too small, the position of the guide roller 3 only needs to be adjusted to realize the adjustment of the tension, so as to ensure that the paper maintains a stable state during the transmission process.

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A paper unwinding mechanism, comprising a frame, wherein one end of the frame is provided with a feeding base for placing a roll of paper, characterized in that: The frame is equipped with several guide rollers, and the two ends of the guide rollers extend outward through the pre-reserved elongated holes on the frame. The outer side of the frame is provided with several slide rails distributed on both sides of the elongated holes. The slide rails on both sides of the same elongated hole are equipped with movable sliders, which are used to support the two ends of the guide rollers. The frame is equipped with several push cylinders and a controller. The push cylinders are connected to and push the corresponding sliders, so that the guide rollers set on the sliders move along the direction of the slide rail. The controller is connected to and controls the push cylinders set on both sides of the same guide roller. The frame is equipped with a fixed roller for leveling the paper. The fixed roller is positioned above the guide roller near the feeding base. As the guide roller moves upward, it gradually approaches the bottom of the fixed roller.

2. The paper unwinding mechanism according to claim 1, characterized in that: The side of the feeding base is provided with a discharge groove, which is connected to the top of the feeding base.

3. The paper unwinding mechanism according to claim 1, characterized in that: The elongated holes are arranged laterally on the frame, and the elongated holes are arranged longitudinally.

4. The paper unwinding mechanism according to claim 1, characterized in that: The slider has a mounting groove on its side for mounting a guide roller, and the mounting groove is connected to the top of the slider.

5. The paper unwinding mechanism according to claim 1, characterized in that: The number of push cylinders corresponds to the number of sliders, and the side of the slider is provided with a protrusion for inserting and installing the push cylinder.

6. A paper unwinding mechanism according to any one of claims 1-5, characterized in that: The frame is equipped with adjustment panels that connect to all controllers.

Images