CN214418890U

CN214418890U - Plastic film trimming tool

Info

Publication number: CN214418890U
Application number: CN202120567482.4U
Authority: CN
Inventors: 张志刚
Original assignee: Henan Jiulong Plastic Science & Technology Co ltd
Current assignee: Henan Jiulong Plastic Science & Technology Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-10-19
Anticipated expiration: 2031-03-19

Abstract

The utility model provides a plastic film edge cutting tool, which effectively solves the problem that the subsequent processing procedures are influenced by the defects of uneven cutting, sinking and the like at the cut part in the cutting process of the existing plastic film; the technical scheme for solving the problem is that the cutting tool comprises a horizontal flat plate, a blade with a downward cutting edge is fixed below the flat plate, and a pressing mechanism is arranged on the lower side of the left end of the flat plate; the pressing mechanism comprises a rotating shaft arranged along the front-back direction, a large gear is arranged at the end part of the rotating shaft, a round roller is arranged at the lower side of the rotating shaft, the two ends of the round roller are hinged with the rotating shaft through connecting rods, a tension spring is connected between the two connecting rods at the same end of the rotating shaft, small gears are arranged at the two ends of the round roller, and wheels are fixed at the two ends of the rotating shaft; the utility model discloses the structure is ingenious, can be in cutting department with the film compaction, flatten, and the minimize is sunken, gives a backward pulling force of plastic film in the cutting, appears the V-arrangement line in avoiding the cutting to avoid the incision to appear dragging, improve the cutting quality, do benefit to follow-up processing.

Description

Plastic film trimming tool

Technical Field

The utility model relates to a plastic film production cutting edge technical field, especially a plastic film cutting edge instrument.

Background

In the production and cutting of the plastic film, particularly in the cutting link with requirements on shape and size, burrs or allowance at the edge side of the plastic film are cut, otherwise, the subsequent processing and positioning and the quality of a finished product are influenced. The existing edge cutting mode comprises machining and manual cutting, and products which are produced for a long time, relatively fixed in size and large in quantity are suitable for being cut by a special cutting machine die or a cutter, so that the production efficiency is improved. However, for small batches of products or products of a customized nature, the cutting machine is inconvenient, the efficiency is greatly reduced, the equipment cost is high, and for this case, the manual cutting tool is more suitable. The existing manual cutting tool mainly comprises a hand-knife type blade and a manual blade, wherein when the manual blade is used, the plastic film is scratched by holding the blade, and because the blade has resistance in cutting, the cutting positions of a plurality of layers of films at the top can be sunken and pulled in a V shape, and finally the cutting positions are irregular.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a plastic film trimming instrument, the effectual current plastic film of having solved is cutting the in-process, and incision department cutting flaw such as uneven, sunken influences subsequent processing procedure's problem.

The technical scheme for solving the problem is that the cutting tool comprises a horizontal flat plate, a blade with a downward cutting edge is fixed below the flat plate, and a pressing mechanism is arranged on the lower side of the left end of the flat plate; pressing means include the pivot of arranging along the fore-and-aft direction, rotate through the connecting plate between pivot both ends and the flat board and be in the same place, pivot end fixing has the gear wheel rather than coaxial, the pivot downside has the circle roller rather than parallel, through the connecting rod articulated together between circle roller both ends and the pivot, be connected with the extension spring between two connecting rods that are in the same end of pivot, there is the pinion at circle roller both ends, the gear wheel can drive the pinion syntropy and rotate, all be fixed with the wheel on the pivot both ends.

The utility model discloses the structure is ingenious, can be in cutting department with the film compaction, flatten, and the minimize is sunken, gives a backward pulling force of plastic film in the cutting, appears the V-arrangement line in avoiding the cutting to avoid the incision to appear dragging, improve the cutting quality, do benefit to follow-up processing.

Drawings

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

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

Fig. 5 is a connection diagram of some parts in the present invention.

Detailed Description

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.

As shown in fig. 1 to 5, the utility model comprises a horizontal flat plate 1, a blade 2 with a downward cutting edge is fixed below the flat plate 1, and a pressing mechanism is arranged at the lower side of the left end of the flat plate 1; pressing means include the pivot 3 of arranging along the fore-and-aft direction, rotate through connecting plate 4 between 3 both ends of pivot and the flat board 1 and be in the same place, 3 end fixing of pivot have rather than

coaxial gear wheel

5, 3 downside of pivot have rather than parallel round roller 6, it is in the same place through connecting rod hinged between 6 both ends of round roller and the pivot 3, be connected with the extension spring between two connecting rods that are in 3 same ends of pivot, 6 both ends of round roller have pinion 7, gear wheel 5 can drive pinion 7 syntropy and rotate, all be fixed with the wheel on 3 both ends of pivot.

In order to realize that the large gear 5 can drive the small gear 7 to rotate in the same direction, the middle part of the connecting rod is rotationally fixed with a transmission gear, and the large gear 5 drives the small gear 7 to rotate in the same direction through the transmission gear.

In order to fix the blade 2, a vertical plate 8 is fixed on the lower side of the flat plate 1, a groove corresponding to the blade 2 is formed in the lower end of the vertical plate 8, the upper side of the blade 2 is arranged in the groove, and the blade 2 is fixed in the groove through a plurality of compression screws.

In order to provide the circular roller 6 with a suitable pressing force, the diameter of the wheel is larger than the diameter of the gearwheel 5.

In order to prevent the round roller 6 from crushing the plastic film in the reverse rotation, the outer edges of the two ends of the round roller 6 are chamfered, and the outer circular surface of the round roller 6 is a smooth surface.

For convenience of use, a handle is fixed on the upper side of the flat plate 1.

The cutting edge at the lower end of the blade 2 is arc-shaped.

It is worth noting that when the lower end of the wheel and the lower end of the round roller 6 are in the same horizontal plane, the tension spring between the two connecting rods is in a stretching state; the diameter of the circular roller 6 is larger than the diameter of the pinion 7.

When the device is used, a single-layer or multi-layer plastic film is flatly fixed on a workbench, the periphery of the plastic film is preferably completely fixed and firm, then the device is pressed on the plastic film, at the moment, when the wheels are in contact with the plastic film, the two round rollers 6 are separated towards two sides, the tension springs on the connecting rods are in a pulling state, as shown in the figure, the device is moved rightwards by the hand-held handle, the film is cut by the cutting edges during moving, meanwhile, the wheels roll to drive the large gear 5 to rotate through the rotating shaft 3, the large gear 5 drives the small gear 7 to rotate through the transmission gear, the small gear 7 rotates to drive the round rollers 6 to rotate, the rotating direction of the wheels is the same as that of the round rollers 6, the round rollers 6 can provide a leftward pulling force for the plastic film, V-shaped grains are avoided, and the situation of pulling and unevenness at the cutting opening is prevented from occurring.

Claims

1. A plastic film edge cutting tool is characterized by comprising a horizontal flat plate (1), a blade (2) with a downward cutting edge is fixed below the flat plate (1), and a pressing mechanism is arranged on the lower side of the left end of the flat plate (1); pressing means include pivot (3) of arranging along the fore-and-aft direction, rotate through connecting plate (4) between pivot (3) both ends and the flat board (1) and be in the same place, pivot (3) end fixing has gear wheel (5) rather than coaxial, pivot (3) downside has round roller (6) rather than parallel, it is in the same place through the connecting rod is articulated between round roller (6) both ends and pivot (3), be connected with the extension spring between two connecting rods that are in pivot (3) with the one end, round roller (6) both ends have pinion (7), pinion (7) syntropy are driven in gear wheel (5), all be fixed with the wheel on pivot (3) both ends.

2. A plastic film trimming tool according to claim 1, wherein a transmission gear is rotatably fixed in the middle of the connecting rod, and the large gear (5) drives the small gear (7) to rotate in the same direction through the transmission gear.

3. The plastic film edge cutting tool according to claim 1, wherein a vertical plate (8) is fixed on the lower side of the flat plate (1), a groove corresponding to the blade (2) is formed in the lower end of the vertical plate (8), the upper side of the blade (2) is arranged in the groove, and the blade (2) is fixed in the groove by a plurality of compression screws.

4. A tool as claimed in claim 1, wherein the diameter of the wheel is greater than the diameter of the gear wheel (5).

5. A tool for trimming plastic films as claimed in claim 1, wherein the outer edges of the two ends of the round roller (6) are chamfered, and the outer circumferential surface of the round roller (6) is smooth.

6. A tool for trimming plastic films as claimed in claim 1, characterized in that said plate (1) is provided with a handle fixed to its upper side.

7. A tool for trimming plastic films as claimed in claim 1, wherein the lower edge of the blade (2) is rounded.