CN218478302U

CN218478302U - Paper frame unwinding device

Info

Publication number: CN218478302U
Application number: CN202222694254.0U
Authority: CN
Inventors: 朱宇栋; 祝闰红; 胡恒峰; 邹汉生; 康登伟
Original assignee: Hubei Jingshan Light Industrial Machinery Co Ltd
Current assignee: Hubei Jingshan Light Industrial Machinery Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-02-14
Anticipated expiration: 2032-10-12

Abstract

The utility model relates to the technical field of corrugated board production, in particular to a paper frame unwinding device, which comprises a lifting arm body and an installation sleeve; one end of the lifting arm body is provided with an expansion chuck; the expansion chuck is sleeved with a unwinding disc; the mounting sleeve penetrates through the lifting arm body; a piston rod is movably arranged in the mounting sleeve; the other end of the lifting arm body is provided with a cylinder; the lifting arm body is provided with a paper returning plate; an adjusting cushion block is arranged at one end of the lifting arm body; a guide screw is movably arranged in the adjusting cushion block; the guide screw is connected with the paper returning plate; the guide screw rod is arranged in parallel with the piston rod. The mounting sleeve penetrates through the lifting arm body, so that the consistency of the action line of the air cylinder force and the central axis of the mounting sleeve is improved; in addition, the central line of the paper unwinding plate can be basically consistent with that of the unwinding disc by adjusting the cushion block and the guide screw, and the situation of deviation pushing is avoided.

Description

Paper frame unwinding device

Technical Field

The utility model relates to a corrugated container board production technical field, concretely relates to paper frame unwinding unit.

Background

The paper frame is one of the main devices for producing corrugated paper board in the corrugated paper board production line. The main function is to support the web for producing corrugated board and control the tension of paper, so that the paper is fed to the next procedure smoothly and the aim of producing corrugated board in high efficiency is achieved. And automatic paper receiving can be realized by matching with an automatic paper receiving machine. The moving process is as follows, the ground rail trolley sends the roll paper to a preset position of the paper frame, after the paper frame lifting arm is detected by the position sensor, the lifting oil cylinder drives the lifting arm to move to the roll paper position, and the paper frame chuck is aligned with the central line of the roll paper core. The clamping oil cylinder acts, the lifting arm drives the chuck to clamp the paper core, and meanwhile, the flange type automatic expansion chuck clamps the roll paper by clamping and expanding the core cylinder. In the moving process of the roll paper, the multi-cylinder pneumatic brake ensures the roll paper to move stably by controlling the paper force. After the moving process is finished, the residual paper roll needs to be unloaded from the paper frame, and the unwinding device of the paper frame is used. The unwinding device needs to overcome the static friction force between the expansion chuck of the paper frame and the rolled paper core so as to enable the chuck to be smoothly withdrawn from the paper core. The magnitude of the static friction is related to the chuck type, core mass, core size, etc. How to ensure stable incomplete coil unwinding, ensure that the unwinding device stretches out and retracts flexibly without clamping stagnation and reduce the production cost of the unwinding device is the key and difficult point of the incomplete coil unwinding technology.

The existing uncoiling device has two reasons of uncoiling clamping stagnation, one is caused by the fact that the action line of the push-out force of the cylinder is inconsistent with the central axis of the mounting sleeve due to overlarge processing error of a mounting hole position of the lifting arm; the second is that the central line of the paper-returning plate is greatly different from the central line of the paper-returning plate, which causes the paper-returning plate to be pushed and deflected to cause clamping stagnation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the aforesaid among the prior art is not enough, provides a paper frame unwinding device, can improve original incomplete package of moving back device and have the problem of unwinding jamming.

The purpose of the utility model is realized through the following technical scheme: a paper frame unwinding device comprises a lifting arm body and a mounting sleeve; one end of the lifting arm body is provided with an expansion chuck; the expansion chuck is sleeved with a unwinding disc; the unwinding disc moves along the axial direction of the expansion chuck; the mounting sleeve penetrates through the lifting arm body; a piston rod is movably arranged in the mounting sleeve; the other end of the lifting arm body is provided with a cylinder connected with a piston rod; the one end of the lifting arm body is movably provided with a paper withdrawing plate connected with the piston rod; the paper unwinding plate is used for abutting against the unwinding disc; the paper unwinding plate and the unwinding disc are arranged in parallel; the unwinding disc is perpendicular to the piston rod;

an adjusting cushion block is arranged at one end of the lifting arm body; a guide screw is movably arranged in the adjusting cushion block; the guide screw is connected with the paper returning plate; the guide screw rod is arranged in parallel with the piston rod.

The utility model is further arranged in that the mounting sleeve is provided with a fixing part at the other end of the lifting arm body; the cylinder is fixed on the fixing part through a bolt; the fixing part is fixed at the other end of the lifting arm body through a pin shaft.

The utility model discloses further set up to, the installation sleeve be equipped with lock nut between one end and the installation sleeve.

The utility model is further arranged that a self-lubricating bearing is arranged between the mounting sleeve and the piston rod; the outer ring of the self-lubricating bearing is connected with the mounting sleeve; and the inner ring of the self-lubricating bearing is connected with the piston rod.

The utility model is further arranged that the paper returning plate is provided with a mounting hole; the piston rod is in interference fit with the mounting hole.

The utility model discloses further set up to, the adjustment cushion passes through the bolt and rises the arm body one end is connected.

The utility model discloses further set up to, the paper frame unwinding unit still includes and rises this body coupling's of arm apron.

The utility model discloses further set up to, be equipped with the backing plate between piston rod and the paper board that moves back.

The utility model has the advantages that: the utility model makes the consistency between the action line of the cylinder force and the central axis of the mounting sleeve better by arranging the mounting sleeve to penetrate through the lifting arm body; in addition, the central line of the paper unwinding plate can be basically consistent with that of the unwinding disc by adjusting the cushion block and the guide screw, and the situation of deviation pushing is avoided.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of another view angle of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a cross-sectional view from another perspective of the present invention;

wherein: 1. a lift arm body; 11. an expansion collet; 12. unwinding the reel; 2. installing a sleeve; 21. a fixed part; 22. locking the nut; 3. a piston rod; 4. a cylinder; 5. removing the paper board; 51. mounting holes; 61. adjusting the cushion block; 62. a lead screw; 7. a self-lubricating bearing; 8. a cover plate; 9. a backing plate.

Detailed Description

The invention will be further described with reference to the following examples.

As can be seen from fig. 1 to 4, the paper frame unwinding device of the present embodiment includes a lifting arm body 1 and a mounting sleeve 2; one end of the lifting arm body 1 is provided with an expansion chuck 11; the expansion chuck 11 is sleeved with a unwinding disc 12; the unwinding disc 12 moves along the axial direction of the expansion chuck 11; the mounting sleeve 2 is arranged in the lifting arm body 1 in a penetrating manner; a piston rod 3 is movably arranged in the mounting sleeve 2; the other end of the lifting arm body 1 is provided with a cylinder 4 connected with a piston rod 3; the one end of the lifting arm body 1 is movably provided with a paper withdrawing plate 5 connected with the piston rod 3; the paper unwinding plate 5 is used for abutting against the unwinding disc 12; the paper unwinding plate 5 is arranged in parallel with the unwinding disc 12; the unwinding disc 12 is perpendicular to the piston rod 3; an adjusting cushion block 61 is arranged at one end of the lifting arm body 1; a guide screw 62 is movably arranged in the adjusting cushion block 61; the guide screw 62 is connected with the paper returning plate 5; the lead screw 62 is arranged parallel to the piston rod 3.

Specifically, this embodiment paper frame unwinding device, the scroll is when the unwinding, supplies air to cylinder 4, makes piston rod 3 move forward when cylinder 4 stretches out, and piston rod 3 drives the axial motion of paper stripping plate 5 along piston rod 3 simultaneously to make paper stripping plate 5 drive the axial motion of unwinding disc 12 along expansion chuck 11, unwinding disc 12 withstands the roll web refill, the chuck is towards opposite direction motion simultaneously, accomplishes the unwinding process.

In the embodiment, the mounting sleeve 2 penetrates through the lifting arm body 1, so that the action line of the air cylinder 4 and the central axis of the mounting sleeve 2 are better in consistency; in addition, one end of the guide screw 62 is connected to the paper returning plate 5, and the other end of the guide screw is in movable telescopic fit with the adjusting cushion block 61, so that the paper returning plate 5 forms two-point support of the piston rod 3 and the guide screw 62, the paper returning plate 5 is prevented from rotating around the axis of the piston rod 3, the interference of the paper returning plate 5 and the expansion chuck 11 is prevented, and the cylinder 4 is protected from being damaged by torque; therefore, the central line of the paper returning plate 5 and the central line of the paper returning disc 12 can be ensured to be basically consistent by adjusting the cushion block 61 and the guide screw 62, and the situation of deviation pushing is avoided.

In the paper frame unwinding device of this embodiment, the mounting sleeve 2 is provided with a fixing portion 21 at the other end of the lifting arm body 1; the fixed part 21 is fixed at the other end of the lifting arm body 1 through a pin shaft; in the paper frame unwinding device of this embodiment, a lock nut 22 is disposed between the one end of the mounting sleeve 2 and the mounting sleeve 2. Specifically, this structure guarantees that the power of 4 outputs of cylinder is coaxial with the 2 axes of installation sleeve all the time, can effectively avoid rising 1 processing error of arm body and lead to 4 output power of cylinder and 2 axes inconsistent of installation sleeve to there is the problem of unwinding clamping stagnation.

Further, the cylinder 4 is fixed to the fixing portion 21 by a bolt; compared with the scheme that a plurality of cylinders 4 are adopted by some paper racks in the market, the cylinder 4 is adopted by the embodiment for unwinding; under the condition of ensuring stable performance, the production cost is reduced, and the economic benefit is improved; at the same time, the structure of the unwinding device becomes simpler. And compare some built-in cylinder 4's on the market scheme (place cylinder 4 in and rise arm body 1 inboard), what this scheme adopted is external cylinder 4's scheme, and is all more convenient to cylinder 4's change and maintenance.

In the paper frame unwinding device according to this embodiment, a self-lubricating bearing 7 is disposed between the mounting sleeve 2 and the piston rod 3; the outer ring of the self-lubricating bearing 7 is connected with the mounting sleeve 2; and the inner ring of the self-lubricating bearing 7 is connected with the piston rod 3. In the embodiment, the self-lubricating bearing 7 is arranged between the mounting sleeve 2 and the piston rod 3, so that lubricating grease does not need to be added frequently, and the maintenance is simple and convenient.

In the paper frame unwinding device according to this embodiment, the paper unwinding plate 5 is provided with a mounting hole 51; the piston rod 3 is in interference fit with the mounting hole 51. Specifically, this kind of structure can guarantee that the thrust of cylinder 4 is perpendicular with the face that moves back cardboard 5 all the time, can avoid moving back cardboard 5 and 3 assembles insecure and lead to moving back cardboard 5 and rock the problem that makes 5 atress out of plumb of moving back cardboard with piston rod.

In the paper frame unwinding device according to this embodiment, the adjusting cushion block 61 is connected to the one end of the lifting arm body 1 through a bolt. Specifically, the adjusting pad 61 can drive the guide screw 62 to make a slight position adjustment, so that the position of the paper returning plate 5 can be adjusted in the process of assembling the device, the center line of the paper returning plate 5 is further aligned with the center line of the expansion chuck 11, and the situation that the paper returning plate 5 is pushed to deviate when contacting the paper returning plate 12 to cause the unwinding clamping stagnation is further prevented.

In the paper rack unwinding device of this embodiment, the paper rack unwinding device further includes a cover plate 8 connected to the lifting arm body 1. Through the photoelectric switch who is convenient for install automatic winding device of above-mentioned setting, can protect rising arm body 1 through above-mentioned setting simultaneously.

In the paper frame unwinding device of this embodiment, a backing plate 9 is disposed between the piston rod 3 and the paper unwinding plate 5. The end of the piston rod 3 can be protected by the above arrangement.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a paper frame unwinding device which characterized in that: comprises a lifting arm body (1) and a mounting sleeve (2); one end of the lifting arm body (1) is provided with an expansion chuck (11); the expansion chuck (11) is sleeved with a rewinding disk (12); the unwinding disc (12) moves along the axial direction of the expansion chuck (11); the mounting sleeve (2) penetrates through the lifting arm body (1); a piston rod (3) is movably arranged in the mounting sleeve (2); the other end of the lifting arm body (1) is provided with a cylinder (4) connected with a piston rod (3); a paper withdrawing plate (5) connected with the piston rod (3) is movably arranged at one end of the lifting arm body (1); the paper unwinding plate (5) is used for abutting against the unwinding disc (12); the paper unwinding plate (5) and the unwinding disc (12) are arranged in parallel; the unwinding disc (12) is perpendicular to the piston rod (3);

an adjusting cushion block (61) is arranged at one end of the lifting arm body (1); a guide screw rod (62) is movably arranged in the adjusting cushion block (61); the guide screw (62) is connected with the paper returning plate (5); the guide screw (62) is arranged in parallel with the piston rod (3).

2. A paper frame unwinding device according to claim 1, characterized in that: the mounting sleeve (2) is provided with a fixing part (21) at the other end of the lifting arm body (1); the cylinder (4) is fixed on the fixing part (21) through a bolt; the fixing part (21) is fixed at the other end of the lifting arm body (1) through a pin shaft.

3. A paper holder unwinding device according to claim 1, characterized in that: and a locking nut (22) is arranged between the one end of the mounting sleeve (2) and the mounting sleeve (2).

4. A paper frame unwinding device according to claim 1, characterized in that: a self-lubricating bearing (7) is arranged between the mounting sleeve (2) and the piston rod (3); the outer ring of the self-lubricating bearing (7) is connected with the mounting sleeve (2); the inner ring of the self-lubricating bearing (7) is connected with the piston rod (3).

5. A paper frame unwinding device according to claim 1, characterized in that: the paper returning plate (5) is provided with a mounting hole (51); the piston rod (3) is in interference fit with the mounting hole (51).

6. A paper frame unwinding device according to claim 1, characterized in that: the adjusting cushion block (61) is connected with one end of the lifting arm body (1) through a bolt.

7. A paper frame unwinding device according to claim 1, characterized in that: the paper frame unwinding device further comprises a cover plate (8) connected with the lifting arm body (1).

8. A paper holder unwinding device according to claim 1, characterized in that: a backing plate (9) is arranged between the piston rod (3) and the paper returning plate (5).