Paper pressing roller structure

Abstract

The utility model provides a paper pressing roller structure, paper pressing rollers are arranged above a paper supporting roller, the paper pressing roller structure comprises a support, two paper pressing rollers, a base, a connecting rod and a driving air cylinder, the central axes of the two paper pressing rollers are parallel and are rotatably connected with the support, the support is erected above the paper pressing rollers, the base is arranged on the side of the support, and the connecting rod is connected with the driving air cylinder. One end of the connecting rod is rotatably connected with the base, the other end of the connecting rod is rotatably connected with the top of the support, a piston on the driving air cylinder is rotatably connected with the middle of the connecting rod, and the piston on the driving air cylinder moves in the vertical direction. According to the utility model, the paper pressing roller and the paper supporting roller can be better pressed.

Description

Technical Field

[0001] This utility model relates to the field of tobacco manufacturing equipment technology, specifically to a paper pressing roller structure. Background Technology

[0002] In cigarette production, tipping paper is typically conveyed by a feed roller and a pressure roller. The tipping paper is laid on the feed roller, and the pressure roller presses it down, aligning itself above the tipping paper and applying pressure. The rotation of the feed roller moves the tipping paper, thus achieving conveying. When the pressure roller malfunctions, the pressure applied to the tipping paper is insufficient, causing the tipping paper to slip on the feed roller. This leads to poor quality during subsequent glue coating and cutting processes. Current technology typically uses a spring-loaded bracket with a cam to move and press the pressure roller. However, this structure makes it difficult to control the height and angle of the bracket, and the bracket is prone to tilting during movement. This results in uneven pressure on one side of the pressure roller, affecting the stability of the tipping paper conveying. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the prior art by proposing a pressure roller structure that allows the pressure roller to better press against the paper support roller.

[0004] This utility model proposes a paper pressing roller structure, which is arranged above the paper support roller. It includes a support, two paper pressing rollers, a base, a connecting rod, and a driving cylinder. The central axes of the two paper pressing rollers are parallel and rotatably connected to the support. The support is erected above the paper pressing rollers. The base is arranged beside the support. One end of the connecting rod is rotatably connected to the base, and the other end is rotatably connected to the top of the support. The piston on the driving cylinder is rotatably connected to the middle of the connecting rod, and the piston on the driving cylinder moves in the vertical direction.

[0005] The preferred technical solution of this utility model is as follows: a joint bearing is provided on the connecting rod, a horizontal connecting rod is provided on the bracket, a support is provided on the top of the bracket, the connecting rod is fixedly connected to the support, and the connecting rod is disposed inside the joint bearing.

[0006] The preferred technical solution of this utility model is as follows: the support is provided with connecting plates at both ends, and the two paper pressing rollers are both disposed between the two connecting plates, and the two ends of the paper pressing rollers are respectively hinged to the two connecting plates.

[0007] The preferred technical solution of this utility model is as follows: a protective plate is provided at intervals on the side of the paper pressing roller, and the protective plate is connected to the bracket.

[0008] The preferred technical solution of this utility model is that a rubber layer is provided on the outer periphery of the paper pressing roller.

[0009] The preferred technical solution of this utility model is as follows: the driving cylinder is disposed above the connecting rod, the fixed end of the driving cylinder is fixedly connected to the base, and its piston is disposed downward.

[0010] The preferred technical solution of this utility model is as follows: a sensor is provided above the bracket, the sensor detection end is arranged facing the bracket, and the sensor is fixedly mounted on the drive cylinder.

[0011] The paper pressure roller structure of this utility model has the following beneficial effects:

[0012] 1. The connecting rod is driven to swing up and down by the drive cylinder. The connecting rod drives the bracket and the paper pressing roller on it to move up and down, so as to realize the height adjustment of the paper pressing roller.

[0013] 2. The connecting rod and the bracket are connected by a spherical bearing. A connecting rod is installed at the top of the bracket and inserted into the spherical bearing. Through the spherical bearing, the connecting rod has a certain degree of rotational freedom in any direction. The bracket and the paper pressing roller on it can rotate through the spherical bearing. This allows the paper pressing roller to adapt to the position of the paper support roller when it is driven down by the driving cylinder, so that the paper pressing roller presses down on the paper support roller, clamps the transparent paper on the paper support roller, and makes the transparent paper move stably. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0015] Figure 1 This is a structural view of an embodiment of the present utility model.

[0016] Figure 2 This is a side view of an embodiment of the present utility model.

[0017] Figure 3 This is a front view of an embodiment of the present utility model.

[0018] Figure 4 This is a gas path connection diagram of an embodiment of the present utility model.

[0019] In the diagram: 10, pressure roller; 20, bracket; 21, connecting plate; 22, support; 23, protective plate; 30, drive cylinder; 31, piston; 40, connecting rod; 41, spherical bearing; 50, base. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0021] Please see Figures 1 to 3 A paper pressing roller structure includes a support 20, paper pressing rollers 10, a drive cylinder 30, a connecting rod 40, and a base 50. Two paper pressing rollers 10 are rotatably mounted above a paper support roller via the support 20. The base 50 is located beside the support 20. One end of the connecting rod 40 is rotatably connected to the base 50, and the other end is rotatably connected to the top of the support 20. The drive cylinder 30 is located above the connecting rod 40, and its piston 31 is rotatably connected to the middle of the connecting rod 40. The piston 31 on the drive cylinder 30 moves vertically to drive the connecting rod 40 to swing up and down, thereby driving the support 20 and its paper pressing rollers 10 to move up and down, adjusting the distance between the paper pressing rollers 10 and the paper support roller, so that the paper pressing rollers 10 press on the paper support roller, and the paper pressing rollers 10 and the paper support roller cooperate to transport transparent paper.

[0022] The paper support roller is horizontally positioned, with one end rotatably connected to the base 50. The base 50 provides support for the paper support roller, and the central axis of the paper support roller is located in the horizontal plane, so that the transparent paper can be horizontally displaced under the action of the paper support roller and the pressure roller 10, avoiding the transparent paper from slipping on the paper support roller due to tilting, which would cause the transparent paper to wrinkle during the movement.

[0023] The base 50 is located beside the bracket 20, and one end of the connecting rod 40 is rotatably connected to the base 50 via a pin. The fixed end of the drive cylinder 30 is fixedly connected to the base 50, and the piston 31 on it is set downwards. The piston 31 on the drive cylinder 30 is rotatably connected to the middle of the connecting rod 40. The drive cylinder 30 drives its piston 31 to move in the vertical direction, and the piston 31 drives the connecting rod 40 to rotate around the pin at its end, causing the connecting rod 40 to swing up and down, thereby driving the bracket 20 connected to the other end of the connecting rod 40 to move up and down, realizing the height adjustment of the paper pressure roller 10, so as to adjust the pressure of the paper pressure roller 10 on the paper support roller.

[0024] The support 20 has an inverted U-shaped structure, with connecting plates 21 arranged opposite to each other at both ends. The two ends of the pressure roller 10 are rotatably connected to the two connecting plates 21 via bearings. The central axes of the two pressure rollers 10 are parallel to each other and spaced apart. The positional relationship between the two pressure rollers 10 and the support roller should satisfy the following condition: when the central axis of the support roller and the central axes of the two pressure rollers 10 are all in a horizontal state, the outer circular surface of the support roller is tangent to the outer circular surface of the two pressure rollers 10, so that there is line contact between the two pressure rollers 10 and the support roller, so as to ensure that the two pressure rollers 10 can stably press the transparent paper onto the support roller.

[0025] A support 22 is provided on the top of the bracket 20, and a connecting rod is fixedly installed on the support 22. A spherical bearing 41 is provided at the end of the connecting rod 40, and the connecting rod is installed in the spherical bearing 41. Through the spherical bearing 41, the bracket 20 can rotate around the connecting rod 40, so that the bracket 20 has rotational freedom in the front-back and left-right directions. By adjusting the tilt angle of the pressure roller 10, it can be ensured that when the pressure roller 10 is pressed onto the paper support roller through the transparent paper, the central axis of the pressure roller 10 is parallel to the central axis of the paper support roller, so that it is adapted to the paper support roller, absorbs errors, and ensures a better pressing effect between the pressure roller 10 and the paper feed roller.

[0026] The drive cylinder 30 drives the piston 31 to extend and retract, causing the connecting rod 40 to swing, which in turn causes the bracket 20 connected to the end of the connecting rod 40 to move up and down, thereby adjusting the height of the bracket 20 and adjusting the pressure applied by the pressure roller 10 to the paper support roller. The spherical bearing 41 drives the connecting rod to rotate, causing the bracket 20 to rotate in the front-back and left-right directions, so that the pressure roller 10 can make better contact and ensure that the pressure roller 10 and the paper support roller meet the line contact requirement. The specific working process is as follows: the drive motor drives the piston 31 to extend, the piston 31 moves downward and drives the connecting rod 40 to swing downward, which in turn drives the bracket 20 located at the end of the connecting rod 40 to move downward, increasing the pressure of the pressure roller 10 on the paper support roller, so as to ensure that the pressure roller 10 presses the transparent paper onto the paper support roller, and the pressure between the pressure roller 10 and the paper support roller ensures stable transportation of the transparent paper; as the pressure roller 10 presses down, the pressure roller 10 contacts the paper support roller through the transparent paper. The pressure roller 10 can adaptively adjust according to the position of the paper support roller and the thickness of the transparent paper. The bracket 20 rotates relative to the connecting rod 40 so that both pressure rollers 10 can press onto the paper support roller and maintain line contact with the paper support roller.

[0027] After the pressure roller 10 presses down, since the bracket 20 and the connecting rod 40 are connected by the spherical bearing 41, the pressure roller 10 can adaptively adjust its tilt angle after contacting the paper support roller through the transparent paper, so that the two pressure rollers 10 respectively make line contact with the paper support roller, thereby solving the problem that the pressure roller 10 cannot be tangent to the paper support roller and press the transparent paper due to the paper support roller being skewed due to installation errors or other reasons.

[0028] Preferably, in order to prevent the pressure roller 10 from leaving indentations on the transparent paper when it is pressed, and to increase the friction between the pressure roller 10 and the transparent paper to prevent the transparent paper from slipping, a rubber layer is provided on the outer periphery of the pressure roller 10.

[0029] Preferably, a sensor is installed on the cylinder with the sensor detection end facing downwards to detect whether the bracket 20 rotates smoothly.

[0030] Preferably, a protective plate 23 is provided on the side of the pressure roller 10. The protective plate 23 is close to the pressure roller 10 on the transparent paper input side and is spaced apart from the pressure roller 10. The bottom of the protective plate 23 is not higher than the height of the central axis of the pressure roller 10, so as to provide protection without affecting the normal conveying of transparent paper. The protective plate 23 can form a stop on the side of the pressure roller 10 to prevent foreign objects from entering between the pressure roller 10 and the paper support roller during the transparent paper transportation process, thus affecting normal operation.

[0031] Please see Figure 4 In this application, the air supply part of the drive cylinder 30 adopts the synchronous signal of the paper support roller rotation. When the equipment is stationary, the two-position three-way solenoid valve signal is turned on, and the solenoid valve supplies air to the paper support roller clutch cylinder, while the drive cylinder 30 is lifted. When the equipment is started or in manual mode, the solenoid valve switches, the paper support roller clutch cylinder is de-aired, the clutch is engaged, and the drive cylinder 30 is pressed down to enter the working state. When the equipment is de-energized and the air supply is stopped, the solenoid valve enters the normally closed state, the paper support roller clutch is engaged, and the drive cylinder 30 enters the relaxed state without air supply.

[0032] Preferably, the drive cylinder 30 is equipped with an exhaust throttle valve installed in both directions of air intake. The speed of the drive cylinder 30's operation can be controlled by adjusting the throttle valve to avoid the impact of the pressure roller 10 on the support roller. At the same time, the air intake source of the drive cylinder 30 is equipped with a pressure reducing valve with a gauge, which can monitor and adjust the pressure of the pressure roller 10 on the support roller in real time, so as to realize the visibility and controllability of pressure data.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A paper pressure roller structure, wherein the paper pressure roller (10) is disposed above the paper support roller, characterized in that, The device includes a support (20), two paper pressing rollers (10), a base (50), a connecting rod (40), and a drive cylinder (30). The two paper pressing rollers (10) are rotatably connected to the support (20) with their central axes parallel to each other. The support (20) is mounted above the paper pressing rollers (10). The base (50) is located beside the support (20). One end of the connecting rod (40) is rotatably connected to the base (50), and the other end is rotatably connected to the top of the support (20). The piston (31) on the drive cylinder (30) is rotatably connected to the middle of the connecting rod (40), and the piston (31) on the drive cylinder (30) moves in the vertical direction.

2. The paper pressure roller structure according to claim 1, characterized in that, A spherical bearing (41) is provided on the connecting rod (40), a horizontal connecting rod is provided on the bracket (20), a support (22) is provided on the top of the bracket (20), the connecting rod is fixedly connected to the support (22), and the connecting rod is located inside the spherical bearing (41).

3. The paper pressing roller structure according to claim 1, characterized in that, The bracket (20) is provided with connecting plates (21) at both ends, and the two paper pressing rollers (10) are both provided between the two connecting plates (21). The two ends of the paper pressing rollers (10) are respectively hinged to the two connecting plates (21).

4. The paper pressing roller structure according to claim 1, characterized in that, A protective plate (23) is provided at intervals on the side of the paper pressing roller (10), and the protective plate (23) is connected to the bracket (20).

5. The paper pressure roller structure according to claim 1, characterized in that, The outer periphery of the paper pressing roller (10) is provided with a rubber layer.

6. The paper pressure roller structure according to claim 1, characterized in that, The drive cylinder (30) is located above the connecting rod (40), and the fixed end of the drive cylinder (30) is fixedly connected to the base (50), with its piston (31) facing downward.

7. The paper pressure roller structure according to claim 1, characterized in that, A sensor is provided above the bracket (20), with the sensor detection end facing the bracket (20), and the sensor is fixedly mounted on the drive cylinder (30).

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