CN220033473U - Tensioning mechanism for printing device - Google Patents

Abstract

The utility model relates to a tensioning mechanism for a printing device, which comprises a mounting frame 1, a conveying belt 2 and a tensioning assembly 3, wherein when a workpiece is conveyed onto the conveying belt 2, the workpiece sequentially passes through a first penetrating cavity 34 and a second penetrating cavity 35, the surface of the workpiece is pressed against a first tensioning piece 31 and a second tensioning piece 32, and the first tensioning piece 31 and the second tensioning piece 32 control the surface tension of the workpiece. As the workpiece passes through the applanation element 52, the workpiece is compacted by the applanation element 52 to maintain the flatness of the surface.

Description

Tensioning mechanism for printing device

Technical Field

The present application relates to the field of paperboard printing, and more particularly to a tensioning mechanism for a printing device.

Background

Currently, in the printing industry, printing on the surface of paper or paper cassettes is an indispensable step, wherein in order to print on the surface of paper or paper cassettes, it is often necessary to tile the paper or paper cassettes and then print. Meanwhile, in order to improve the printing efficiency, the paper and the paper box are often tiled, but in the transportation process, the paper or the paper box may have bending and crease, so that the printing effect is poor.

In the above-described related art, there is a problem that the surface of the paper or the cassette is liable to be creased to cause poor printing.

Disclosure of Invention

In order to maintain a good printing effect, the utility model provides a tensioning mechanism for a printing device.

The utility model provides a straining device for printing device, includes mounting bracket, conveyer belt and tensioning assembly, the conveyer belt is used for carrying the work piece, conveyer belt and tensioning assembly set up in on the mounting bracket, tensioning assembly includes first tensioning piece and second tensioning piece, the work piece is hugged closely in proper order first tensioning piece and second tensioning piece.

Through adopting above-mentioned technical scheme, work piece i.e. paper or carton in this patent, paper is when hugging closely first tensioning piece and second tensioning piece, and first tensioning piece and second tensioning piece stretch paper surface for paper surface's tension grow, thereby make the work piece more level and smooth at the surface that gets into the conveyer belt, and then maintain good printing effect.

Optionally, a first penetrating cavity is arranged between the first tensioning piece and the second tensioning piece, a second penetrating cavity is arranged between the second tensioning piece and the mounting frame, and the workpiece sequentially penetrates through the first penetrating cavity and the second penetrating cavity.

Through adopting above-mentioned technical scheme, the first chamber of wearing to establish and the second are worn to establish in the work piece, compare in the work piece direct butt pressure in first tensioning piece and second tensioning piece, the work piece is attached in the area of first tensioning piece and second tensioning piece more to make the tensioning force of work piece bigger, make the surface that is located the conveyer belt of work piece more parallel and level.

Optionally, the tensioning assembly further includes a tensioning connector, one side of the first tensioning member is connected to the tensioning connector, one side of the second tensioning member is connected to the tensioning connector, and the first tensioning member is rotatably disposed relative to the second tensioning member.

Through adopting above-mentioned technical scheme, through the interval between change first tensioning piece and the second tensioning piece for the work piece laminating first tensioning piece and second tensioning piece more, thereby make the tension on work piece surface bigger.

Optionally, the conveyer belt comprises a driving assembly, the driving assembly is connected to the conveyer belt, the driving assembly is used for driving the conveyer belt to rotate, the driving assembly comprises a rotating piece, the conveyer belt is sleeved on the rotating piece, and the highest point of the rotating piece is flush with the plane of the conveyer belt.

By adopting the technical scheme, when the highest point of the rotating piece is not flush with the plane of the conveying belt, when the workpiece moves to the conveying belt from the second tensioning piece, the surface of the workpiece can be bent to form a crease. Therefore, the printing effect is poor, and the highest point of the rotating piece is flush, so that the good printing effect can be maintained.

Optionally, the device further comprises a flattening assembly, the flattening assembly is arranged on one side of the rotating piece, the flattening assembly comprises a compacting surface, the compacting surface is above the rotating piece, and a space is reserved between the compacting surface and the rotating piece.

Through adopting above-mentioned technical scheme, when the paper passes through the compaction face, the paper can be compacted by the rotating member to improve the roughness of paper.

Optionally, the pressing device further comprises a reset assembly, wherein the reset assembly is connected with the flattening assembly, and when the workpiece is pressed against the pressing surface, the pressing surface rises to enable the pressing surface to be attached to the thickness of the workpiece.

Through adopting above-mentioned technical scheme, laminating thickness of paper compaction to improve the roughness of paper.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. in the patent, a workpiece, namely paper or a paper box, stretches the surface of the paper when the paper clings to the first tensioning piece and the second tensioning piece, so that the tension of the surface of the paper is increased, the surface of the workpiece entering a conveying belt is smoother, and a good printing effect is maintained;

2. the workpiece penetrates through the first penetrating cavity and the second penetrating cavity, compared with the workpiece which is directly propped against the first tensioning piece and the second tensioning piece, the area of the workpiece attached to the first tensioning piece and the second tensioning piece is more, so that the tensioning force of the workpiece is larger, and the surface of the workpiece, which is positioned on the conveying belt, is more level;

3. by changing the distance between the first tensioning piece and the second tensioning piece, the workpiece is more attached to the first tensioning piece and the second tensioning piece, and accordingly the tension on the surface of the workpiece is larger.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

fig. 2 is a schematic overall structure of an embodiment of the present utility model.

Reference numerals illustrate: 1. a mounting frame; 2. a conveyor belt; 3. a tensioning assembly; 31. a first tensioning member; 32. a second tensioning member; 33. tensioning the connecting piece; 331. a first mounting portion; 332. a second mounting portion; 34. a first through cavity; 35. a second through cavity; 4. a drive assembly; 41. a driving member; 42. a rotating member; 5. a flattening assembly; 51. flattening the mounting seat; 52. flattening the piece.

Detailed Description

The present utility model is described in further detail below with reference to fig. 1-2.

The present example discloses a tensioning mechanism for a printing device.

Referring to fig. 1 and 2, a tensioning mechanism for a printing device comprises a mounting frame 1, a conveyor belt 2 and a tensioning assembly 3, wherein the conveyor belt 2 is used for transporting paper, i.e. a workpiece in the present embodiment, the tensioning assembly 3 is arranged on the conveyor belt 2, and the tensioning assembly 3 is used for tensioning the workpiece.

Referring to fig. 1 and 2, in the present embodiment, the tensioning assembly 3 includes a first tensioning member 31, a second tensioning member 32 and a tensioning connecting member 33, wherein the first tensioning member 31 and the second tensioning member 32 are disposed on the tensioning connecting member 33, a space is formed between the first tensioning member 31 and the second tensioning member 32, and a first penetrating cavity 34 is formed. One side of the workpiece is abutted against one side of the first tensioning piece 31, the workpiece is arranged in the first penetrating cavity 34 in a penetrating mode from top to bottom, and the surface of the workpiece is tightly attached to the first tensioning piece 31 and the second tensioning piece 32. One side of the second tensioning piece 32 is spaced from one side of the mounting frame 1 and forms a second penetrating cavity 35, one side of the workpiece penetrates through the second penetrating cavity 35 from bottom to top, and the surface of the workpiece is tightly attached to the side walls of the second tensioning piece 32 and the mounting frame 1. The first tension member 31 and the second tension member 32 are cylindrical members so that the paper is surface-tensioned during transportation, and wrinkles are not easily generated.

Referring to fig. 1 and 2, the tensioning connector 33 includes a first mounting portion 331 and a second mounting portion 332, wherein the first mounting portion 331 is connected to one side of the first tensioning member 31, the second mounting portion 332 is connected to the second tensioning member 32, the first mounting portion 331 is connected to the first tensioning member 31, and the second mounting portion 332 is slidably connected to the first mounting portion 331 so as to control the size of the cavity opening of the first through cavity 34, so that the first through cavity 34 fits the workpiece, and the tensioning force on the surface of the workpiece is maintained.

Furthermore, the first mounting portion 331 is hinged to the mounting frame 1, thereby controlling the relative positions between the first and second tension members 31 and 32 and the mounting frame 1.

Referring to fig. 1 and 2, the conveyor belt driving device further comprises a driving assembly 4, wherein the driving assembly 4 is arranged on the mounting frame 1, the driving assembly 4 comprises a driving piece 41 and a rotating piece 42, the driving piece 41 is a driving motor, an output end of the driving motor is connected with the rotating piece 42 in a rotating mode, and the conveying belt 2 is sleeved on the rotating piece 42 to drive the conveying belt 2 to rotate.

Referring to fig. 1 and 2, the rotating member 42 is disposed on one side of the mounting frame 1, the rotating member 42 is in a cylindrical shape, and the workpiece is disposed through the second through cavity 35 and attached to the surface of the rotating member 42 from bottom to top. The purpose of this arrangement is that the first tension member 31 and the second tension member 32 can generate tension to the workpiece so that the surface of the workpiece is straightened, and the good straight state is maintained for post-printing.

Moreover, the highest point of the rotating member 42 is flush with the conveying plane of the conveying belt 2, so that the condition that the workpiece surface is bent due to vertical displacement of the workpiece is avoided, and the flatness of the workpiece surface is further maintained.

Referring to fig. 1 and 2, the flattening device further comprises a flattening assembly 5, wherein the flattening assembly 5 is arranged on the mounting frame 1, and the flattening assembly 5 is used for flattening workpieces fed into the conveying belt 2. Specifically, in this embodiment, the flattening assembly 5 includes a flattening mounting seat 51 and a flattening member 52, where the flattening mounting seat 51 is provided with two groups, the two groups of flattening mounting seats 51 are disposed on two sides of the mounting frame 1, the flattening member 52 is disposed through the two groups of flattening mounting seats 51, a space is provided between the flattening member 52 and an upper vertex of the rotating member 42, and the workpiece is disposed through the space.

Referring to fig. 1 and 2, the flattening member 52 includes a compacting surface disposed below the flattening member 52, and when the workpiece passes through the rotating member 42 and the flattening member 52, the workpiece is pressed by the compacting surface so that the surface of the workpiece is maintained flat, facilitating post-printing.

Referring to fig. 1 and 2, in order to maintain the passing stability of the workpiece, in this embodiment, the workpiece pressing device further includes a reset assembly disposed on one side of the flattening assembly 5, and when the workpiece is pressed against the compacting surface, the reset assembly drives the compacting surface to press against the upper surface of the workpiece.

Referring to fig. 1 and 2, the reset assembly includes a reset mounting member and a reset member, one end of the reset mounting member is disposed through the flattening mounting seat 51, and the other end of the reset mounting member is disposed above the flattening mounting seat 51. The reset mounting member is inserted into the reset member, and the reset member is spring, and the upper surface of the flattening member 52 is pressed against the lower surface of the reset member. When the workpiece is located below the flattening piece 52, the flattening piece 52 promotes the resetting piece to ascend, and the resetting piece is abutted against the resetting mounting piece, so that the flattening piece 52 is abutted against the workpiece, and the flatness of the surface of the workpiece is maintained.

Referring to fig. 1 and 2, the flattening assembly 5 further includes limiting members, the limiting members are provided with two groups, the two groups of limiting members are all arranged on the mounting frame 1, and the two groups of limiting members are arranged on two sides of the conveying belt 2.

The implementation principle of the embodiment of the utility model is as follows: the utility model provides a straining device for printing device, includes mounting bracket 1, conveyer belt 2 and tensioning assembly 3, when the work piece is carried on the conveyer belt 2, and the work piece wears to establish first wearing and establishing chamber 34 and second wearing and establishing chamber 35 in proper order, and the surface of work piece is supported and is pressed in first tensioning piece 31 and second tensioning piece 32, and first tensioning piece 31 and second tensioning piece 32 control work piece surface tension. As the workpiece passes through the applanation element 52, the workpiece is compacted by the applanation element 52 to maintain the flatness of the surface.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (7)

1. The utility model provides a straining device for printing device, its characterized in that includes mounting bracket (1), conveyer belt (2) and tensioning assembly (3), conveyer belt (2) are used for carrying the work piece, conveyer belt (2) and tensioning assembly (3) set up in on mounting bracket (1), tensioning assembly (3) include first tensioning piece (31) and second tensioning piece (32), the work piece is hugged closely in proper order first tensioning piece (31) and second tensioning piece (32).

2. The tensioning mechanism for a printing device according to claim 1, wherein a first penetrating cavity (34) is formed between the first tensioning member (31) and the second tensioning member (32), a second penetrating cavity (35) is formed between the second tensioning member (32) and the mounting frame (1), and workpieces sequentially penetrate through the first penetrating cavity (34) and the second penetrating cavity (35).

3. A tensioning mechanism for a printing device according to claim 1, characterized in that the tensioning assembly (3) further comprises a tensioning connection (33), one side of the first tensioning member (31) being connected to the tensioning connection (33), one side of the second tensioning member (32) being connected to the tensioning connection (33), the first tensioning member (31) being rotatably arranged with respect to the second tensioning member (32).

4. A tensioning mechanism for a printing unit according to claim 1, further comprising a driving assembly (4), the driving assembly (4) being connected to the conveyor belt (2), the driving assembly (4) being adapted to drive the conveyor belt (2) in rotation, the driving assembly (4) comprising a rotating member (42), the conveyor belt (2) being sleeved on the rotating member (42), the highest point of the rotating member (42) being flush with the plane of the conveyor belt (2).

5. The tensioning mechanism for a printing device according to claim 4, further comprising a flattening assembly (5), the flattening assembly (5) being disposed on one side of the rotating member (42), the flattening assembly (5) comprising a compacting surface, the compacting surface being spaced above the rotating member (42), the compacting surface being spaced from the rotating member (42).

6. A tensioning mechanism for a printing unit according to claim 5, further comprising a return assembly connected to the flattening assembly (5), the compacting surface being raised so that it engages the thickness of the workpiece when the workpiece is pressed against the compacting surface.

7. A tensioning mechanism for a printing device according to claim 5, characterized in that the flattening assembly (5) further comprises two sets of limiting elements, two sets of limiting elements being arranged on both sides of the conveyor belt (2), the conveying path of the workpiece being located between the two sets of limiting elements.