Adjustable paper leveling mechanism

Abstract

The utility model relates to an adjustable paper flattening mechanism, which comprises two mounting plates, a paper flattening mechanism and a paper flattening mechanism, the upper compression roller is rotationally erected between the two mounting plates; the two lower compression rollers are rotationally erected between the two mounting plates and are positioned below the upper compression rollers; the first adjusting assembly is connected to the upper pressing roller and used for driving the upper pressing roller to move in the vertical direction; the second adjusting assembly is connected to the two lower pressing rollers and used for driving the two lower pressing rollers to be close to or away from each other in the horizontal direction. The device is reasonable in structure, and the position of the compression roller can be flexibly adjusted, so that the pressure on raw paper is adjusted, and the flattening quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the card paper manufacturing field, specifically, relate to a kind of adjustable paper flattening mechanism. BACKGROUND

[0002] The raw paper of card paper processing is usually coiled material, and the raw paper needs to be unwound to the processing equipment during processing. Due to long-term curling, the raw paper will be bent, affecting the quality of processing. In the existing production operation, the tension of the paper is adjusted by using a rotating roller during the conveying of the raw paper, and the paper is bent in the opposite direction to flatten the paper. However, the existing flattening mechanism has a fixed structure and cannot adjust the position of the pressure roller according to the material and bending degree of the paper, resulting in poor flattening quality. SUMMARY

[0003] The utility model aims to provide a kind of adjustable paper flattening mechanism, which has a reasonable structure and can flexibly adjust the position of the pressure roller to adjust the pressure on the raw paper and improve the quality of flattening.

[0004] An adjustable paper flattening mechanism includes two mounting plates, two mounting plates are oppositely arranged, an upper pressure roller is rotatably arranged between the two mounting plates, two lower pressure rollers are rotatably arranged between the two mounting plates and below the upper pressure roller, a first adjusting assembly is connected to the upper pressure roller for driving the upper pressure roller to move vertically, and a second adjusting assembly is connected to the two lower pressure rollers for driving the two lower pressure rollers to move horizontally towards or away from each other.

[0005] In the above technical solution, the first adjusting assembly can drive the upper pressure roller to move vertically, thereby adjusting the distance between the upper pressure roller and the lower pressure roller and changing the pressure of the upper pressure roller on the raw paper. The second adjusting assembly can drive the two lower pressure rollers to move towards or away from each other, thereby changing the distance between the two lower pressure rollers and adjusting the bending degree of the raw paper. Through the cooperation of the first adjusting assembly and the second adjusting assembly, the pressure on the raw paper can be flexibly adjusted to adapt to raw paper of different materials and bending degrees, thereby improving the applicability and flattening effect of the mechanism.

[0006] Further, the first adjusting assembly includes a first sliding seat and a first adjusting screw, the mounting plate is provided with a first slot extending in the vertical direction, the first sliding seat is slidably arranged in the first slot, the shaft of the upper pressure roller passes through the first sliding seat, and the first adjusting screw extends in the vertical direction and is threadedly connected with the first sliding seat.

[0007] In the above technical solution, by screwing the first adjusting screw, the first sliding seat can be driven to slide along the first slot, thereby driving the upper pressure roller to move vertically and adjusting the position of the upper pressure roller.

[0008] Further, the first adjusting screw is provided with a handle at one end away from the first sliding base.

[0009] In the above technical solution, the handle is provided to facilitate the operator to rotate the first adjusting screw.

[0010] Further, the second adjusting assembly comprises two connecting blocks, a second adjusting screw and a positioning plate, the mounting plate is provided with a second slot extending in the horizontal direction, the rotating shaft of the lower pressing roller passes through the second slot and is connected with the connecting blocks, the positioning plate is connected to the mounting plate and located between the two connecting blocks, the second adjusting screw passes through the connecting blocks and the positioning plate in the horizontal direction, and the second adjusting screw is threadedly connected with the connecting blocks.

[0011] In the above technical solution, the second adjusting screw passes through the connecting blocks and the positioning plate, and rotating the second adjusting screw can drive the two connecting blocks to approach or move away from each other, so as to adjust the distance between the two lower pressing rollers, which is reasonable in structure and convenient to operate.

[0012] Further, the second adjusting screw comprises a first threaded portion and a second threaded portion, the first threaded portion is connected with one of the connecting blocks, the second threaded portion is connected with the other connecting block, and the threaded directions of the first threaded portion and the second threaded portion are opposite.

[0013] In the above technical solution, the threaded directions of the first threaded portion and the second threaded portion are opposite, and when the second adjusting screw is rotated, the two connecting blocks can be driven to approach or move away from each other, so as to adjust the distance between the two connecting blocks with the rotating shaft of the lower pressing roller as the midpoint.

[0014] Further, a smooth portion is arranged between the first threaded portion and the second threaded portion, and the smooth portion corresponds to the positioning plate.

[0015] In the above technical solution, the positioning plate can position the second adjusting screw to avoid the second adjusting screw from sliding in the axial direction, and the smooth portion corresponds to the positioning plate to reduce the friction between the second adjusting screw and the positioning plate, so that the second adjusting screw rotates more stably.

[0016] Further, the smooth portion is provided with a limiting ring close to the outer periphery of both sides of the positioning plate.

[0017] In the above technical solution, the limiting ring is arranged to limit the second adjusting screw in the axial direction to avoid its movement.

[0018] Further, one end of the second adjusting screw is provided with a rotating portion.

[0019] In the above technical solution, the rotating portion can facilitate the rotation of the second adjusting screw, so that the use is more convenient.

[0020] Compared with the prior art, the beneficial effects of the utility model are that the first adjusting assembly can drive the upper compression roller to move along the vertical direction, so that the distance between the upper compression roller and the lower compression roller is adjusted, and the pressure of the upper compression roller on the raw paper is changed. The second adjusting assembly can drive the two lower compression rollers to approach or move away from each other, so that the distance between the two lower compression rollers is changed, and then the bending degree of the raw paper is adjusted. Through the cooperation of the first adjusting assembly and the second adjusting assembly, flexible adjustment of the raw paper pressure can be realized, so that the raw paper of different materials and bending degrees is adapted, and the applicability and the leveling effect of the mechanism are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a structure schematic view of the adjustable paper leveling mechanism of the utility model embodiment.

[0022] Fig. 2 It is a structure schematic view of the first adjusting assembly of the utility model embodiment.

[0023] Fig. 3 It is a structure schematic view of the second adjusting assembly of the utility model embodiment.

[0024] BRIEF DESCRIPTION OF DRAWINGS:

[0025] Mounting plate 1, first slot body 11, second slot body 12, upper compression roller 2, lower compression roller 3, first adjusting assembly 4, first sliding seat 41, first adjusting screw 42, handle 43, second adjusting assembly 5, connecting block 51, second adjusting screw 52, first threaded part 521, second threaded part 522, smooth part 523, limiting ring 524, screwing part 525, positioning plate 5. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0028] Please refer to Figs. 1 to 3In a preferred embodiment, the adjustable paper flattening mechanism mainly comprises two mounting plates 1, an upper pressing roller 2, two lower pressing rollers 3, a first adjusting assembly 4 and a second adjusting assembly 5. The two mounting plates 1 are oppositely arranged, the upper pressing roller 2 is rotatably arranged between the two mounting plates 1, the two lower pressing rollers 3 are rotatably arranged between the two mounting plates 1 and below the upper pressing roller 2, the first adjusting assembly 4 is connected to the upper pressing roller 2 and used for driving the upper pressing roller 2 to move along the vertical direction, and the second adjusting assembly 5 is connected to the two lower pressing rollers 3 and used for driving the two lower pressing rollers 3 to move closer to or away from each other along the horizontal direction.

[0029] For example, the upper pressing roller 2 and the lower pressing roller 3 are axially parallel and perpendicular to the mounting plate 1, the upper pressing roller 2 is above the lower pressing roller 3, the rotation shafts of the two lower pressing rollers 3 are at the same height, and the rotation shafts of the two lower pressing rollers 3 are symmetrically arranged with respect to the extension line of the rotation shaft of the upper pressing roller 2 in the vertical direction. During processing, the raw paper passes through the gap between the upper pressing roller 2 and the lower pressing roller 3, and the surface of the raw paper is reversely bent by the cooperation of the upper pressing roller 2 and the lower pressing roller 3, so that the raw paper is flattened.

[0030] As can be seen from the above technical solution, the first adjusting assembly 4 can drive the upper pressing roller 2 to move along the vertical direction, so as to adjust the distance between the upper pressing roller 2 and the lower pressing roller 3 and change the pressure of the upper pressing roller 2 on the raw paper. The second adjusting assembly 5 can drive the two lower pressing rollers 3 to move closer to or away from each other, so as to change the distance between the two lower pressing rollers 3 and adjust the bending degree of the raw paper. Through the cooperation of the first adjusting assembly 4 and the second adjusting assembly 5, the pressure of the raw paper can be flexibly adjusted, so as to adapt to raw papers of different materials and curling degrees and improve the applicability and flattening effect of the mechanism.

[0031] Please refer to Fig. 2 The first adjusting assembly 4 comprises a first sliding seat 41 and a first adjusting screw 42, the mounting plate 1 is provided with a first groove body 11 extending along the vertical direction, the first sliding seat 41 is slidably arranged in the first groove body 11, the rotation shaft of the upper pressing roller 2 penetrates the first sliding seat 41, and the first adjusting screw 42 extends along the vertical direction and is threadedly connected with the first sliding seat 41. By screwing the first adjusting screw 42, the first sliding seat 41 can be driven to slide along the first groove body 11, so as to drive the upper pressing roller 2 to move along the vertical direction and realize the adjustment of the position of the upper pressing roller 2.

[0032] In the embodiment, the end of the first adjusting screw 42 away from the first sliding seat 41 is provided with a handle 43, and the handle 43 can facilitate the operator to screw the first adjusting screw 42.

[0033] Please refer to Fig. 3The second adjusting assembly 5 comprises two connecting blocks 51, a second adjusting screw 52 and a positioning plate 5, the mounting plate 1 is provided with a second groove 12 extending in the horizontal direction, the rotating shaft of the lower pressing roller 3 is connected with the connecting block 51 through the second groove 12, the positioning plate 5 is connected to the mounting plate 1 and located between the two connecting blocks 51, the second adjusting screw 52 is arranged in the connecting block 51 and the positioning plate 5 in the horizontal direction, and the second adjusting screw 52 is threadedly connected with the connecting block 51. The second adjusting screw 52 is arranged in the connecting block 51 and the positioning plate 5, and the two connecting blocks 51 are driven to move close to or away from each other by screwing the second adjusting screw 52, so that the distance between the two lower pressing rollers 3 is adjusted, and the structure is reasonable and the operation is convenient.

[0034] Specifically, the second adjusting screw 52 comprises a first threaded portion 521 and a second threaded portion 522, the first threaded portion 521 is connected with one of the connecting blocks 51, the second threaded portion 522 is connected with the other connecting block 51, and the threaded directions of the first threaded portion 521 and the second threaded portion 522 are opposite. The threaded directions of the first threaded portion 521 and the second threaded portion 522 are opposite, and the two connecting blocks 51 are driven to move reversely when the second adjusting screw 52 is screwed, so that the two connecting blocks 51 are close to or away from each other, and the distance between the two connecting blocks 51 and the rotating shaft of the lower pressing roller 2 as the midpoint is adjusted.

[0035] A smooth portion 523 is arranged between the first threaded portion 521 and the second threaded portion 522, and the smooth portion 523 corresponds to the positioning plate 5. The positioning plate 5 can position the second adjusting screw 52 to avoid the second adjusting screw 52 from sliding in the axial direction, the smooth portion 523 corresponds to the positioning plate 5, can reduce the friction between the second adjusting screw 52 and the positioning plate 5, and the second adjusting screw 52 rotates more stably.

[0036] In the embodiment, a limiting ring 524 is arranged on the outer periphery of the two sides of the smooth portion 523 close to the positioning plate 5. By arranging the limiting ring 524, the second adjusting screw 52 can be limited in the axial direction to avoid movement.

[0037] One end of the second adjusting screw 52 is provided with a screwing portion 525, the screwing portion 525 can conveniently rotate the second adjusting screw 52, and use is more convenient.

[0038] In the description of the utility model, it is understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable sheet flattening mechanism, characterized by, The utility model relates to a double-sided pressing device for a printing machine, which comprises: two mounting plates, the two mounting plates being oppositely arranged; an upper pressing roller rotatably arranged between the two mounting plates; two lower pressing rollers rotatably arranged between the two mounting plates and below the upper pressing roller; a first adjusting assembly connected to the upper pressing roller and used to drive the upper pressing roller to move in the vertical direction; and a second adjusting assembly connected to the two lower pressing rollers and used to drive the two lower pressing rollers to move towards or away from each other in the horizontal direction. The first adjusting assembly comprises a first sliding seat and a first adjusting screw, the mounting plate is provided with a first slot extending in the vertical direction, the first sliding seat is slidably arranged in the first slot, the rotating shaft of the upper pressing roller penetrates through the first sliding seat, and the first adjusting screw extends in the vertical direction and is threadedly connected with the first sliding seat.

2. The adjustable sheet flattening mechanism of claim 1, wherein, An end of the first adjusting screw away from the first sliding seat is provided with a handle.

3. The adjustable sheet flattening mechanism of claim 2, wherein, The second adjusting assembly comprises two connecting blocks, a second adjusting screw, and a positioning plate, the mounting plate is provided with a second slot extending in the horizontal direction, the rotating shaft of the lower pressing roller penetrates through the second slot and is connected with the connecting blocks, the positioning plate is connected to the mounting plate and located between the two connecting blocks, the second adjusting screw penetrates through the connecting blocks and the positioning plate in the horizontal direction, and the second adjusting screw is threadedly connected with the connecting blocks.

4. The adjustable sheet flattening mechanism of claim 1, wherein, The second adjusting screw comprises a first threaded portion and a second threaded portion, the first threaded portion is connected with one of the connecting blocks, the second threaded portion is connected with the other connecting block, and the screw thread directions of the first threaded portion and the second threaded portion are opposite.

5. The adjustable sheet flattening mechanism of claim 4, wherein, A smooth portion is arranged between the first threaded portion and the second threaded portion, and the smooth portion corresponds to the positioning plate.

6. The adjustable sheet flattening mechanism of claim 5, wherein, Limiting rings are arranged on the outer circumferences of the two sides of the smooth portion close to the positioning plate.

7. The adjustable sheet flattening mechanism of claim 6, wherein, An end of the second adjusting screw is provided with a screwing portion.

8. The adjustable sheet flattening mechanism of claim 4, wherein, ​

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