CN221700534U - Variable coil stock device of printing machine - Google Patents

Abstract

The utility model relates to the field of printing technology, and proposes a variable coiling device for a printing press, including a rotating shaft rotatably arranged relative to a bracket, the rotating shaft being used to place a coil; a fixed retaining ring sleeved on the rotating shaft; a sliding retaining ring slidingly arranged on the rotating shaft; a plurality of sliding plates, the plurality of sliding plates being arranged on the sliding retaining ring at intervals on the circumference, the sliding plates being located between the sliding retaining ring and the rotating shaft, and the sliding plates being in contact with the outer wall of the rotating shaft after sliding. The above technical solution solves the problem that coiling of materials in the prior art coiling machine is prone to skew.

Description

A variable coiling device for a printing press

Technical Field

The utility model relates to the technical field of printing, and in particular to a variable material coiling device of a printing press.

Background Art

The printing press roll device is divided into an upper roll device and a lower roll device. The main function of the upper roll device is to introduce the roll paper into the printing device for printing, and the lower roll device is mainly to output and unwind the printed roll paper. The lower roll device mainly involves: 1. Rewinding, rewinding the printed roll paper onto the roll; 2. Rewinding, replacing the roll after one roll is used up.

In the existing unwinding device, a cutting device and a plurality of reel shafts can be used to realize reel changing without stopping the printing press. However, the position of the reel shaft cannot be fixed during the rotation process of the reel, and the paper web is prone to skew during the winding process. When the printed paper on the reel reaches a certain height, it will collapse.

Utility Model Content

The utility model provides a variable material rolling device for a printing press, which solves the problem that the material rolling device in the related art is prone to skew.

The technical solution of the utility model is as follows:

A variable coiling device for a printing press, comprising:

Bracket;

A rotating shaft, rotatably arranged relative to the bracket, and the rotating shaft is used to place the reel;

A fixed retaining ring, sleeved on the rotating shaft;

A sliding retaining ring, slidably arranged on the rotating shaft;

There are a plurality of sliding plates, which are arranged on the sliding retaining ring at circumferential intervals. The sliding plates are located between the sliding retaining ring and the rotating shaft. After sliding, the sliding plates abut against the outer wall of the rotating shaft.

Optionally, it also includes:

There are a plurality of elastic members, and two ends of the elastic members are respectively arranged on the sliding plate and the sliding retaining ring.

Optionally, it also includes:

The telescopic member is arranged on the bracket, the rotating shaft is rotatably arranged on the telescopic member, and the telescopic member drives the rotating shaft to move.

Optionally, it also includes:

A top piece is rotatably arranged relative to the bracket, and the rotating shaft abuts against the top piece after moving;

A driving member is arranged on the bracket, and is used for driving the top member to rotate.

Optionally, the rotating shaft, the top member and the telescopic member are all in plurality, and further include:

A central axis is arranged on the bracket;

A first rotating disk, rotatably disposed on the central axis, and a plurality of top members are rotatably disposed on the first rotating disk at circumferential intervals;

The second rotating disk is rotatably arranged on the central axis, a winding space is formed between the first rotating disk and the second rotating disk, the rotating shaft, the top member and the telescopic member are all located in the winding space, and a plurality of the telescopic members are circumferentially spaced and arranged on the second rotating disk.

Optionally, it also includes:

A first connecting rod is slidably and rotatably arranged on the central shaft, and a plurality of sliding retaining rings are all arranged on the first connecting rod;

The second connecting rod is rotatably arranged on the central axis, and the plurality of fixed retaining rings are all arranged on the second connecting rod.

Optionally, it also includes:

There are a plurality of synchronization rods, both ends of which are respectively arranged on the first rotating disk and the second rotating disk, and the plurality of synchronization rods are arranged at intervals on the circumference.

Optionally, it also includes:

A cutting knife is rotatably arranged on the bracket, and the cutting knife is used to cut the printing paper into sections. After the printing paper is cut by the cutting knife, the printing paper is wound onto a reel on another rotating shaft.

Optionally, the rotating shaft is an inflatable shaft.

Optionally, the abutting end of the top piece and the inflatable shaft is conical and has anti-slip grooves.

The working principle and beneficial effects of the utility model are:

In the utility model, the rotating shaft is rotatably arranged relative to the bracket, and the rotating shaft is used to receive the reel. The printed product is wound on the reel of the rotating shaft. The fixed retaining ring and the sliding retaining ring are respectively located on both sides of the reel to prevent the printed product from being skewed during the winding process. By adjusting the position of the sliding retaining ring, it can adapt to the winding of printed products of different sizes on reels of different lengths. The sliding plate on the sliding retaining ring can slide in the sliding retaining ring, and the inner ring diameter of the sliding retaining ring can be adjusted by the sliding plate. After the reel is sleeved on the rotating shaft, it can also pass through the sliding retaining ring and abut against the fixed retaining ring.

BRIEF DESCRIPTION OF THE DRAWINGS

The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic diagram of the axial side of the utility model;

Fig. 3 is a top view of the utility model;

Figure 4 is a schematic diagram of the structure of the movable retaining ring and the movable plate of the utility model;

Figure 5 is a cross-sectional view of the sliding retaining ring and the movable plate of the utility model;

FIG. 6 is a schematic diagram of the top member structure of the utility model.

In the figure: 1, bracket, 2, rotating shaft, 3, fixed retaining ring, 4, sliding retaining ring, 5, sliding plate, 6, elastic member, 7, telescopic member, 8, top member, 9, driving member, 10, central axis, 11, first rotating disk, 12, second rotating disk, 13, first connecting rod, 14, second connecting rod, 15, synchronization rod, 16, cutting knife.

DETAILED DESCRIPTION

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

1 to 6, a variable coil device of a printing press is proposed, including a bracket 1; a rotating shaft 2 is rotatably arranged relative to the bracket 1, and the rotating shaft 2 is used to place a roll; a fixed retaining ring 3 is sleeved on the rotating shaft 2; a sliding retaining ring 4 is slidably arranged on the rotating shaft 2; there are a plurality of sliding plates 5, and the plurality of sliding plates 5 are circumferentially arranged on the sliding retaining ring 4, and the sliding plates 5 are located between the sliding retaining ring 4 and the rotating shaft 2, and the sliding plates 5 abut against the outer wall of the rotating shaft 2 after sliding.

In this embodiment, the rotating shaft 2 is rotatably arranged relative to the bracket 1. The rotating shaft 2 is used to receive the roll. The printed product is wound on the roll of the rotating shaft 2. The fixed retaining ring 3 and the sliding retaining ring 4 are respectively located on both sides of the roll to prevent the printed product from being skewed during the winding process. By adjusting the position of the sliding retaining ring 4, it can adapt to the winding of printed products of different sizes on rolls of different lengths. The sliding plate 5 on the sliding retaining ring 4 can slide in the sliding retaining ring 4. The inner diameter of the sliding retaining ring 4 can be adjusted by the sliding plate 5. After the roll is sleeved on the rotating shaft 2, it can also pass through the sliding retaining ring 4 and abut against the fixed retaining ring 3.

Furthermore, the invention also includes a plurality of elastic members 6 , and two ends of the elastic members 6 are respectively arranged on the sliding plate 5 and the sliding retaining ring 4 .

In this embodiment, the elastic member 6 is disposed between the sliding plate 5 and the retaining ring. The elastic member 6 always provides a force for the sliding plate 5 to approach the axis of the rotating shaft 2 so that the sliding plate 5 can fit on the outer wall of the rotating shaft 2 .

Furthermore, the telescopic member 7 is arranged on the bracket 1, the rotating shaft 2 is rotatably arranged on the telescopic member 7, and the telescopic member 7 drives the rotating shaft 2 to move.

In this embodiment, the telescopic member 7 can drive the rotating shaft 2 to move. After the rotating shaft 2 moves, one end is separated from the bracket 1. The reel can be installed on the rotating shaft 2 or removed from the rotating shaft 2, which is convenient for replacing the reel.

Furthermore, the top member 8 is rotatably arranged relative to the bracket 1, and the rotating shaft 2 abuts against the top member 8 after moving;

The driving member 9 is arranged on the bracket 1 and is used for driving the top member 8 to rotate.

In this embodiment, the top piece 8 is rotatably arranged on the bracket 1, and the top piece 8 is located at one end of the bracket 1 away from the telescopic piece 7. The driving piece 9 drives the top piece 8 to rotate, and the rotating shaft 2 abuts against or leaves the top piece 8 under the action of the telescopic piece 7. When the rotating shaft 2 abuts against the top piece 8, the rotation of the top piece 8 drives the rotating shaft 2 to rotate, so that the roll on the rotating shaft 2 wraps around the printed material.

Further, the rotating shaft 2, the top member 8 and the telescopic member 7 are each provided in a plurality, and further include a central axis 10 disposed on the bracket 1;

A first rotating disk 11 is rotatably disposed on the central axis 10, and a plurality of top members 8 are rotatably disposed on the first rotating disk 11 at circumferential intervals;

The second rotating disk 12 is rotatably arranged on the central axis 10. A winding space is formed between the first rotating disk 11 and the second rotating disk 12. The rotating shaft 2, the top member 8 and the telescopic member 7 are all located in the winding space. A plurality of telescopic members 7 are circumferentially spaced on the second rotating disk 12.

In this embodiment, there are several top members 8, rotating shafts 2 and telescopic members 7, and one top member 8 corresponds to one rotating shaft 2, and one rotating shaft 2 corresponds to one telescopic member 7. The top members 8 are arranged in a circumferentially spaced array on the first rotating disk 11, and the telescopic members 7 are arranged in a circumferentially spaced array on the second rotating disk 12. The first rotating disk 11 and the second rotating disk 12 are both rotatably arranged on the central axis 10, so that the first rotating disk 11 and the second rotating disk 12 can rotate concentrically. The first rotating disk 11 is driven by the driving member 9. After the first rotating disk 11 rotates, several rotating shafts 2 alternately enter the printing material winding position. By alternately winding several rotating shafts 2, the printing press can realize non-stop reel change. One top member corresponds to one rotating shaft 2, and one rotating shaft 2 can be separated from the top member 8 alone, which is convenient for replacing the reel and makes the movements of each rotating shaft 2 not interfere with each other.

Furthermore, it also includes a first connecting rod 13 that is slidably and rotatably arranged on the central shaft 10, and a plurality of sliding retaining rings 4 are all arranged on the first connecting rod 13; a second connecting rod 14 is rotatably arranged on the central shaft 10, and a plurality of fixed retaining rings 3 are all arranged on the second connecting rod 14.

In this embodiment, a plurality of sliding retaining rings 4 and a plurality of fixed retaining rings 3 are arranged on the first connecting rod 13 and the second connecting rod 14. The first connecting rod 13 can slide on the central axis 10, so as to achieve the purpose of adjusting the position of the sliding retaining ring 4. The first connecting rod 13 and the second connecting rod 14 can both rotate relative to the central axis 10. When the rotating shaft 2 rotates alternately driven by the first rotating disk 11, the first connecting rod 13 and the second connecting rod 14 follow the rotation. The rotation center of the first connecting rod 13 and the second connecting rod 14 is the same as the first rotating disk 11 and the second rotating disk 12, so that the sliding retaining ring 4 and the fixed retaining ring 3 can always abut against the rotating shaft 2.

Furthermore, the invention also includes a plurality of synchronization rods 15 , with two ends of the synchronization rod 15 respectively arranged on the first rotating disk 11 and the second rotating disk 12 , and the plurality of synchronization rods 15 are arranged at intervals on the circumference.

In this embodiment, a plurality of synchronization rods 15 are circumferentially spaced apart on the first rotating disk 11 and the second rotating disk 12. The synchronization rods 15 can not only ensure synchronous rotation of the first rotating disk 11 and the second rotating disk 12, but also play the role of receiving the printed matter, making the printed matter more stable when wound on the reel.

Furthermore, it also includes: a cutting knife 16 is rotatably arranged on the bracket 1, and the cutting knife 16 is used to cut the printing paper into sections. After the printing paper is cut by the cutting knife 16, the printing paper is wound onto a reel on another rotating shaft 2.

In this embodiment, when the printed material roll is replaced, it is necessary to use the cutting knife 16 to cut the printed material being wound so that the printed material can be wound on another roll. The shaft 2 on which the printed material is normally wound will be rotated to a position away from the cutting knife 16 under the drive of the first rotating disk 11. The next shaft 2 rotates to the bottom of the path through which the printed material passes and is close to the cutting knife 16. After the cutting knife 16 cuts the printed material, the printed material begins to be wound on the shaft 2 close to the cutting knife 16, and the first rotating disk 11 rotates to rotate the shaft 2 on which the printed material is being wound away from the cutting knife 16. The cutting knife 16 can be used to cut the printed material being wound on a shaft 2 roll, and the winding can be changed.

Furthermore, the rotating shaft 2 is an inflatable shaft.

In this embodiment, the rotating shaft 2 is an inflatable shaft, and the reel can be fixed or removed by inflation and deflation to achieve the purpose of rapid replacement. The fixed retaining ring 3 and the sliding retaining ring 4 are always in contact with the inflated rotating shaft.

Furthermore, the end of the top piece 8 that abuts against the inflatable shaft is conical and has anti-slip grooves.

In this embodiment, the end of the top piece 8 abutting against the inflatable shaft is conical and has anti-slip grooves to better drive the shaft 2 to rotate, preventing the shaft 2 and the top piece 8 from idling and causing the printed matter to scatter.

It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims (10)

1. A variable windup device for a printing press, comprising:

A bracket (1);

The rotating shaft (2) is rotatably arranged relative to the bracket (1), and the rotating shaft (2) is used for placing a winding drum;

a fixed retainer ring (3) is sleeved on the rotating shaft (2);

The sliding check ring (4) is arranged on the rotating shaft (2) in a sliding manner;

The sliding plates (5) are arranged on the sliding check rings (4) at intervals, the sliding plates (5) are positioned between the sliding check rings (4) and the rotating shaft (2), and the sliding plates (5) are abutted to the outer wall of the rotating shaft (2) after sliding.

2. A variable windup device for a printer according to claim 1, further comprising:

The elastic pieces (6) are provided with a plurality of elastic pieces, and two ends of each elastic piece (6) are respectively arranged on the sliding plate (5) and the sliding check ring (4).

3. A variable windup device for a printer according to claim 1, further comprising:

The telescopic piece (7) is arranged on the bracket (1), the rotating shaft (2) is rotatably arranged on the telescopic piece (7), and the telescopic piece (7) drives the rotating shaft (2) to move.

4. A variable windup device for a printer according to claim 3, further comprising:

the top piece (8) is rotatably arranged relative to the bracket (1), and the rotating shaft (2) is abutted with the top piece (8) after moving;

The driving piece (9) is arranged on the bracket (1), and the driving piece (9) is used for driving the top piece (8) to rotate.

5. A variable windup device of a printing press according to claim 4, characterized in that the shaft (2), the top piece (8) and the telescopic piece (7) are all of several, further comprising:

a central shaft (10) arranged on the bracket (1);

The first rotating disc (11) is rotatably arranged on the central shaft (10), and a plurality of top pieces (8) are circumferentially spaced and rotatably arranged on the first rotating disc (11);

The second rotating disc (12) is rotatably arranged on the central shaft (10), a winding space is formed between the first rotating disc (11) and the second rotating disc (12), the rotating shaft (2), the top piece (8) and the telescopic pieces (7) are all positioned in the winding space, and a plurality of telescopic pieces (7) are circumferentially arranged on the second rotating disc (12) at intervals.

6. A variable windup device for a printer according to claim 5, further comprising:

the first connecting rod (13) is slidably and rotatably arranged on the central shaft (10), and a plurality of sliding check rings (4) are arranged on the first connecting rod (13);

The second connecting rod (14) is rotatably arranged on the central shaft (10), and a plurality of fixed check rings (3) are arranged on the second connecting rod (14).

7. A variable windup device for a printer according to claim 5, further comprising:

The synchronous rods (15) are arranged, two ends of each synchronous rod (15) are respectively arranged on the first rotating disc (11) and the second rotating disc (12), and a plurality of synchronous rods (15) are circumferentially arranged at intervals.

8. A variable windup device for a printer according to claim 1, further comprising:

The cutting knife (16) is rotatably arranged on the support (1), the cutting knife (16) is used for cutting printing paper, and after the printing paper is cut off by the cutting knife (16), the printing paper winds the winding drum on the other rotating shaft (2).

9. A variable windup device of a printing press according to claim 4, characterized in that the spindle (2) is an inflatable spindle.

10. A variable windup device of a printing press according to claim 9, characterized in that the end of the top piece (8) abutting the balloon shaft is conical and has anti-slip threads.