CN224183943U - quick roll change device - Google Patents

Abstract

This utility model discloses a quick roller changing device, including two wall panels symmetrically arranged on the left and right, with a pressure roller in the middle. The pressure roller includes a mandrel and a rubber sleeve, with the rubber sleeve fitted onto the mandrel. Bearings are connected to the mandrel at both ends via bearing seats. A locking arm is provided on the left wall panel, connecting to a left pressure roller seat. The bearing on the left side of the mandrel is clamped between the locking arm and the left pressure roller seat. A right pressure roller seat and a right clamping cylinder are provided on the right wall panel. The bearing seat on the right side of the mandrel is fixedly connected to the right pressure roller seat, and the diameter of the right side of the mandrel is larger than that of the left side. This utility model has a reasonable and ingenious structural design. When the rubber sleeve needs to be replaced, the right clamping cylinder lifts to clamp the right side of the mandrel, while the left locking arm releases, suspending the left side of the mandrel. After the mandrel is vented, the rubber sleeve expands, and because the diameter of the left side of the mandrel is smaller, the rubber sleeve slides off from the left side and is removed, allowing for the reverse operation to replace a suitable-sized rubber roller. This is convenient and quick.

Description

Quick roll changing device

Technical Field

The utility model relates to a quick roll changing device.

Background

In order to cope with the demands of printing materials with different sizes and materials on a printing machine, the compression roller needs to be replaced, a coupler adopted by the traditional compression roller is directly connected with a wallboard of the printing machine, when the roller is replaced, the whole body needs to be detached, then the printing machine is manually or mechanically carried, and the operation process is complex.

Disclosure of utility model

In order to overcome the defects, the utility model provides the quick roll changing device, which can quickly change the rubber sleeve of the press roll without disassembling the mandrel.

The quick roll changing device comprises a frame, wherein the frame comprises a left side wall plate and a right side wall plate, the two wall plates are symmetrically arranged left and right, a press roll is arranged in the middle, the press roll comprises a mandrel and a rubber sleeve, the rubber sleeve is sleeved on the mandrel, two ends of the mandrel are connected with bearings through bearing seats, a left clamping cylinder is connected to the left side wall plate, the bottom of the left clamping cylinder is connected with a left press roll seat, one side of the left press roll seat is connected with the left side wall plate through a lifting mechanism, the left press roll seat is arranged above the left bearing seat of the mandrel, a locking arm is arranged below the left side of the mandrel, is of an L-shaped structure, the locking arm hooks the bearing seat at the end of the mandrel, the locking arm is connected with a piston rod of the cylinder, the cylinder is connected to the left press roll seat, the right side wall plate is connected with a right clamping cylinder, the bottom of the right clamping cylinder is connected with the right press roll seat through a lifting mechanism, and one side of the right press roll seat is fixedly connected with the bearing seat on the right side of the mandrel.

The diameter of the right side of the mandrel is larger than that of the left side, the mandrel is of a hollow structure, air holes are formed in the surface of the mandrel, air nozzles are arranged on the right side of the mandrel, and the air nozzles are communicated with the center of the mandrel.

The lifting mechanism comprises a synchronous shaft, wherein the left side and the right side of the synchronous shaft are respectively meshed with a left rack and a right rack through gears, the left rack is connected with a left press roller seat, one side of the left rack is connected with a sliding block, the sliding block is connected with a left side wall plate through a guide rail, the right rack is connected with a right press roller seat, one side of the right rack is connected with a sliding block, and the sliding block is connected with a right side wall plate through a guide rail.

The left press roller seat and the right press roller seat are respectively connected to two sides of the protection frame through a guide rod, and a spring is arranged on the guide rod.

One or more supporting baffles are arranged between the left side wall plate and the right side wall plate.

The left compression roller seat below is provided with a leading truck, the leading truck is the cell body structure of opening orientation locking arm, and the locking arm sets up in the leading truck.

And working holes are formed in the left side wall plate and the right side wall plate corresponding to the pressing roller positions.

The left locking arm is loosened, so that the left side of the mandrel is suspended, after the mandrel is ventilated, the rubber sleeve is expanded, and the rubber sleeve is taken down from the left side due to the smaller diameter of the left side of the mandrel, and the rubber roller with proper size is reversely operated to be replaced conveniently and rapidly.

Drawings

The utility model will now be described by way of example and with reference to the accompanying drawings in which:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a left side wall panel construction;

fig. 3 is a right side wall panel block diagram.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "connected," and the like are to be construed broadly, and include, for example, "connected" as well as "fixedly connected" as well as removably connected or integrally connected, mechanically connected as well as electrically connected, directly connected as well as indirectly connected via an intermediate medium, and in communication between two elements, and fixedly connected as well as welded as glued. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The quick roll changing device shown in fig. 1-3 comprises a frame 1, wherein the frame 1 comprises a left wallboard 11 and a right wallboard 12, the two wallboards are symmetrically arranged left and right, a press roll 2 is arranged in the middle, the press roll 2 comprises a core shaft 21 and a rubber sleeve 22, the rubber sleeve 22 is sleeved on the core shaft 21, the rubber sleeve is a glass fiber tube, and rubber is attached to the surface of the rubber sleeve. Two ends of the mandrel 21 are connected with bearings through bearing seats. As shown in fig. 2, a left clamping cylinder 51 is connected to the left wall plate 11, the bottom of the left clamping cylinder 51 is connected to a left press roller seat 71, one side of the left press roller seat 71 is connected to the left wall plate 11 through a lifting mechanism, the left press roller seat 71 is arranged above a left bearing seat of the mandrel 21, and the left press roller seat 71 presses the end part of the press roller 2 during operation of the press roller 2. The locking arm 4 is arranged below the left side of the mandrel 21, the locking arm 4 is of an L-shaped structure, the locking arm 4 hooks the bearing seat at the end part of the mandrel 21, the locking arm 4 is connected with the piston rod of the cylinder 3, the cylinder 3 is connected to the left press roll seat 71, and clamping and loosening of the locking arm 4 to the mandrel 21 are realized through the cylinder 3. As shown in fig. 3, the right wallboard 12 is connected with the right clamping cylinder 52, the bottom of the right clamping cylinder 52 is connected with the right press roller seat 72, one side of the right press roller seat 72 is connected with the right wallboard 12 through a lifting mechanism, and the right press roller seat 72 is fixedly connected with a bearing seat on the right side of the mandrel 21.

When the rubber sleeve needs to be replaced, the right clamping cylinder 52 is lifted to clamp the right side of the mandrel 21, the left locking arm 4 is loosened, one side of the press roller 21 is out of support and is bent downwards to deform, the left side of the press roller 2 is suspended, the rubber sleeve 22 is taken down from the left side and the rubber roller with proper size is replaced by reverse operation, and the rubber sleeve is convenient and quick to use.

The diameter of the right side of the mandrel 21 is larger than that of the left side, the mandrel 21 is of a hollow structure, air holes are formed in the surface of the mandrel, air nozzles are arranged on the right side of the mandrel 21, and the air nozzles are communicated with the center of the mandrel 21. When the rubber sleeve 22 is replaced, the air tap is utilized to ventilate the core shaft 21, so that the rubber sleeve 22 is expanded by about 1 thread, and the core shaft 21 can automatically slip due to the fact that one end of the core shaft 21 is large and the other end is small, and meanwhile, the rubber sleeve convenient to replace is sleeved again.

The lifting mechanism comprises a synchronous shaft 9, wherein the left side and the right side of the synchronous shaft 9 are respectively meshed with a left rack 81 and a right rack 82 through gears, the left rack 81 is connected with a left press roller seat 71, one side of the left rack 81 is connected with a sliding block, the sliding block is connected with a left wall plate 11 through a guide rail 6, the right rack 82 is connected with a right press roller seat 72, one side of the right rack 82 is connected with a sliding block, and the sliding block is connected with a right wall plate 12 through a guide rail 6. The synchronizing shaft 9 ensures the synchronous lifting of the left roll stand 71 and the right roll stand 72.

The lower part of the press roll 2 is provided with a protective frame 14, the protective frame 14 is an arc-shaped bracket, two sides of the protective frame 14 are respectively connected with a left press roll seat 71 and a right press roll seat 72 through a guide rod 13, and the guide rod 13 is provided with a spring.

One or more supporting blocks 15 are arranged between the left side wall plate 11 and the right side wall plate 12, so that the stability of the frame 1 is ensured.

A guide frame is arranged below the left press roller seat 71, the guide frame is of a groove body structure with an opening facing the locking arm 4, and the locking arm 4 is arranged in the guide frame.

The left wall plate 11 and the right wall plate 12 are provided with working holes 10 corresponding to the pressing rollers, and when the rubber sleeve 22 is replaced, the replaced rubber sleeve 22 enters and exits from the working holes.

The present utility model has been made in view of the above-described circumstances, and it is an object of the present utility model to provide a portable electronic device capable of performing various changes and modifications without departing from the scope of the technical spirit of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (7)

1. The quick roll changing device comprises a frame (1), wherein the frame (1) comprises a left wallboard (11) and a right wallboard (12), the quick roll changing device is characterized in that the two wallboards are symmetrically arranged left and right, a pressing roll (2) is arranged in the middle, the pressing roll (2) comprises a mandrel (21) and a rubber sleeve (22), the rubber sleeve (22) is sleeved on the mandrel (21), two ends of the mandrel (21) are connected with bearings through bearing seats, a left clamping cylinder (51) is connected to the left wallboard (11), the bottom of the left clamping cylinder (51) is connected with a left pressing roll seat (71), one side of the left pressing roll seat (71) is connected with the left wallboard (11) through a lifting mechanism, the left pressing roll seat (71) is arranged above a left bearing seat of the mandrel (21), a locking arm (4) is arranged below the left side of the mandrel (21), the locking arm (4) is of an L-shaped structure, the locking arm (4) hooks the bearing seat at the end of the mandrel (21), the locking arm (4) is connected with a piston rod of the cylinder (3), the cylinder (3) is connected to the left pressing roll seat (71), one side of the right wallboard (12) is connected with the right pressing roll seat (72) through a lifting mechanism, the right press roller seat (72) is fixedly connected with a bearing seat on the right side of the mandrel (21).

2. The quick roll changing device according to claim 1, wherein the diameter of the right side of the mandrel (21) is larger than that of the left side, the mandrel (21) is of a hollow structure, air holes are formed in the surface, an air tap is arranged on the right side of the mandrel (21), and the air tap is communicated with the center of the mandrel.

3. The quick roll changing device according to claim 1, wherein the lifting mechanism comprises a synchronous shaft (9), left and right sides of the synchronous shaft (9) are respectively meshed with a left rack (81) and a right rack (82) through gears, the left rack (81) is connected with a left press roll seat (71), one side of the left rack (81) is connected with a sliding block, the sliding block is connected with a left wall plate (11) through a guide rail (6), the right rack (82) is connected with a right press roll seat (72), one side of the right rack (82) is connected with a sliding block, and the sliding block is connected with a right wall plate (12) through a guide rail (6).

4. The quick roll changing device according to claim 1, wherein a protective frame (14) is arranged below the press roll (2), the protective frame (14) is an arc-shaped support, two sides of the protective frame (14) are respectively connected with the left press roll seat (71) and the right press roll seat (72) through a guide rod (13), and a spring is arranged on the guide rod (13).

5. A quick roll change device according to claim 1, characterized in that one or more spacers (15) are arranged between the left side wall plate (11) and the right side wall plate (12).

6. The quick roll changing device according to claim 1, characterized in that a guide frame is arranged below the left roll seat (71), the guide frame is a groove body structure with an opening facing the locking arm (4), and the locking arm (4) is arranged in the guide frame.

7. The quick roll changing device according to claim 1, characterized in that working holes (10) are provided in the left side wall plate (11) and the right side wall plate (12) corresponding to the positions of the press rolls.