CN212736123U - Edge cutting mechanism - Google Patents

Abstract

The utility model belongs to the paper processing field specifically discloses a trimming mechanism, which comprises a frame, be fixed with the workstation in the frame, it has the cutter to lie in the vertical sliding connection in workstation top in the frame, it still is equipped with the hold-down mechanism who is used for compressing tightly the paper to lie in the workstation top in the frame, hold-down mechanism includes the clamp plate of vertical sliding connection in the frame, the clamp plate upper end is fixed with the rack, it is connected with the pivot to rotate in the frame, be fixed with in the pivot with rack toothing's gear, it has the stay cord to fix and twine in the pivot, when gear revolve drove rack downstream, the stay cord is loosened in the epaxial winding of rotating, the one end that the pivot was kept. Adopt the utility model discloses a scheme can solve and cut the easy displacement that produces of in-process paper, influences the problem that cuts the effect.

Description

Edge cutting mechanism

Technical Field

The utility model belongs to the paper processing field, concretely relates to trimming mechanism.

Background

In the process of papermaking and printing, waste edges can be generated, the edges of the paper need to be cut for the neatness and beauty of the edges of the paper, and the edges of the cut paper are neat and beautiful. At paper cutting edge in-process, need the clamp plate to push down many papers that pile up, then cut, nevertheless because the paper piles up the time, have certain space between the paper, at the in-process that cuts, the paper receives the pressure of cutter, and the position pressurized of paper and cutter contact is sunken downwards, then the unable recompression of clamp plate paper, and the paper probably produces partial displacement, influences the effect of cutting.

In order to solve the above problem, chinese patent CN201920641095.3 discloses a paper edge cutting device with a positioning structure, wherein when a cutter cuts downwards, a warping rod is pulled by a metal cable to rotate around a pin shaft, and a pressing plate at the end of the warping rod is driven to rotate to press paper in the rotating process of the warping rod. However, the problems still remain: the fold deformation takes place very easily for the paper, and the clamp plate is at rotatory in-process, and the friction of clamp plate probably drives the paper fold on upper strata, and the upper paper is driven by the clamp plate and is produced the displacement even, influences the effect of cutting.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a trimming mechanism to solve and cut the easy displacement that produces of in-process paper, influence the problem that cuts the effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a trimming mechanism, which comprises a frame, be fixed with the workstation in the frame, it has the cutter to lie in the vertical sliding connection in workstation top in the frame, it still is equipped with the hold-down mechanism who is used for compressing tightly the paper to lie in the workstation top in the frame, hold-down mechanism includes the clamp plate of vertical sliding connection in the frame, the clamp plate upper end is fixed with the rack, it is connected with the pivot to rotate in the frame, be fixed with in the pivot with rack toothing's gear, it has the stay cord to fix and twine in the pivot, when gear revolve drove rack downstream, the stay cord is loosened in the epaxial winding of changeing, the one end.

Compared with the prior art, the utility model discloses following beneficial effect has:

the gear rotates along with the rotating shaft to drive the rack to slide downwards, the rack drives the pressing plate to slide downwards to press paper, and the pull rope is in a loose state at the moment. Then the drive cutter slides down, and the cutter cuts the paper, and when the cutter moves down, taut stay cord earlier, after the stay cord was stretched straightly, the cutter continued the downstream, and stay cord pulling pivot rotates, and then drives the rack through the gear and continue the lapse, and the clamp plate further compresses tightly the paper, and along with cutting of cutter promptly, the clamp plate also progressively compresses tightly the paper, avoids the paper to take place the displacement.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 2 is a front view of embodiment 1 of the present invention.

Fig. 3 is a front view of embodiment 2 of the present invention.

In the figure: 1. a work table; 2. positioning a plate; 3. a cutter body; 4. a connecting rod; 5. pulling a rope; 6. a gear; 7. a rotating shaft; 8. a rack; 9. pressing a plate; 10. a rubber pad; 11. paper; 12. a handle; 13. an air bag; 14. and a roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, and specific embodiments will be given.

Example 1

As shown in fig. 1, an edge cutting mechanism comprises a frame, wherein a workbench 1 is fixed on the frame, a cutter is vertically and slidably connected above the workbench 1 on the frame, the cutter comprises a cutter body 3 and a connecting rod 4 fixed at the upper end of the cutter body 3, a cylinder for driving the cutter to slide is fixed on the frame, an output shaft of the cylinder is fixed to the connecting rod 4, in the embodiment, the connecting rod 4 is provided with two ends which are respectively located at the cutter, a connecting plate is fixed to the upper end of the connecting rod 4, and the output shaft of the cylinder is fixed to the connecting plate.

The workbench 1 is connected with a positioning plate 2 in a sliding mode, the sliding direction of the positioning plate 2 is perpendicular to the sliding direction of the cutter, and the sliding direction of the positioning plate 2 is perpendicular to the length direction of the cutting edge of the cutter body 3. Still be equipped with the hold-down mechanism who is used for compressing tightly paper 11 above lieing in workstation 1 in the frame, hold-down mechanism includes vertical sliding connection's clamp plate 9 in the frame, and clamp plate 9 lower extreme is fixed with rubber pad 10, through the setting of rubber pad 10, reduces the mar that clamp plate 9 left on paper 11 to a certain extent. The upper end of the pressing plate 9 is fixed with a rack 8, the rack is connected with a rotating shaft 7 in a rotating mode, a gear 6 meshed with the rack 8 is fixed on the rotating shaft 7, a pull rope 5 is fixed on the rotating shaft 7 and wound, when the gear 6 rotates to drive the rack 8 to move downwards, the pull rope 5 is wound on the rotating shaft 7 and loosened, one end, far away from the rotating shaft 7, of the pull rope 5 is fixed on a connecting rod 4 of the cutter, and in the embodiment, the pull rope 5 is an elastic rope. Referring to fig. 2, the frame is rotatably connected with a roller 14, the middle of the pull rope 5 is attached to the outer wall of the roller 14, the roller 14 supports the pull rope 5, the outer wall of the roller 14 is provided with an annular limiting groove, and the pull rope 5 is located in the limiting groove. A handle 12 is fixed on the end surface of the rotating shaft 7.

During the specific use, after the paper 11 is stacked on the workbench 1, one end of the paper 11 is attached to the positioning plate 2, the end, away from the positioning plate 2, of the paper 11 is the edge to be cut, and the positioning plate 2 is slid, so that the edge to be cut of the paper 11 is located below the cutter. The positioning plate 2 has a certain arrangement effect on the paper 11, and after one end of the paper 11 is limited and arranged by the positioning plate 2, the other end of the paper 11 is cut to obtain the relatively tidy edge of the paper 11.

An operator holds the handle 12 to drive the rotating shaft 7 to rotate, taking the direction shown in fig. 2 as an example, the rotating shaft 7 rotates counterclockwise, the gear 6 rotates along with the rotating shaft 7 to drive the rack 8 to slide downwards, the rack 8 drives the pressing plate 9 to slide downwards to press the paper 11, and at the moment, the pull rope 5 is in a loose state. The cylinder is started, the cylinder drives the cutter to slide downwards, the cutter cuts paper 11, when the cutter moves downwards, the pull rope 5 is firstly tensioned, after the pull rope 5 is stretched straightly, the cutter continues to move downwards, the pull rope 5 pulls the rotating shaft 7 to rotate, then the rack 8 is driven through the gear 6 to continue to slide downwards, the pressing plate 9 further compresses the paper 11, namely, along with the cutting of the cutter, the pressing plate 9 also gradually compresses the paper 11, and the paper 11 is prevented from displacing.

When 11 piles up thickly at paper, clamp plate 9 can't last to compress tightly downwards along with the cutter, compress tightly paper 11 again and can't the downstream after when clamp plate 9, 8 pairs of gears of rack 6 are spacing, pivot 7 can't rotate again, consequently set up stay cord 5 into the elasticity rope, the elasticity setting of accessible stay cord 5 this moment, tensile stay cord 5 when making the cutter continue to cut downwards, can not influence the work of cutting, paper 11 that this device is applicable to thickness in the certain limit cuts, according to the thickness scope of injecing, can select the elasticity scope of stay cord 5.

Example 2

This example differs from example 1 in that: referring to fig. 3, in this embodiment, the rubber pad 10 is replaced by an air bag 13, magic tapes matched with each other are fixed on the air bag 13 and the pressing plate 9, the air bag 13 is adhered to the pressing plate 9 through the magic tapes, and the air bag 13 is provided with a pressure limiting valve. Gasbag 13 compresses tightly paper 11, avoids leaving the mar on paper 11 on the one hand, and on the other hand, when paper 11 piles up thickly, along with cutting of cutter, paper 11 is compressed tightly the back completely, and clamp plate 9 continues the extrusion gasbag 13 that slides down, and gasbag 13 receives the extrusion back, and gasbag 13 internal gas pressure increases to a certain extent, and the gas in the gasbag 13 is discharged, and gasbag 13 is flat-going gradually, and then makes clamp plate 9 can continue the gliding, accomplishes and cuts the work.

Finally, 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 present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (7)

1. The utility model provides a trimming mechanism, includes the frame, is fixed with the workstation in the frame, and the vertical sliding connection that lies in workstation top in the frame has the cutter, still is equipped with the hold-down mechanism who is used for compressing tightly the paper above the workstation in the frame, and hold-down mechanism includes vertical sliding connection's clamp plate in the frame, its characterized in that: the clamp plate upper end is fixed with the rack, rotates in the frame and is connected with the pivot, is fixed with the gear with rack toothing in the pivot, and fixed and the winding has the stay cord in the pivot, and when gear rotation drove the rack downstream, the stay cord was loosened in the epaxial winding of commentaries on classics, and the stay cord was kept away from the one end of pivot and is fixed on the cutter.

2. An edge cutting mechanism according to claim 1, wherein: and a rubber pad is fixed at the lower end of the pressing plate.

3. An edge cutting mechanism according to claim 1, wherein: and a handle is fixed on the end surface of the rotating shaft.

4. An edge cutting mechanism according to claim 1, wherein: the cutting tool is characterized in that a positioning plate is connected to the workbench in a sliding mode, the sliding direction of the positioning plate is perpendicular to the sliding direction of the cutter, and the sliding direction of the positioning plate is perpendicular to the length direction of the cutting edge of the cutter.

5. An edge cutting mechanism according to claim 1, wherein: the lower end of the pressing plate is detachably connected with an air bag, and a pressure limiting valve is installed on the air bag.

6. An edge cutting mechanism according to claim 5, wherein: magic tapes matched with each other are fixed on the air bag and the pressing plate.

7. An edge cutting mechanism according to claim 1, wherein: the pull rope is an elastic rope.

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