CN203267276U - Adjustable bag cutter - Google Patents

Abstract

The utility model discloses an adjustable bag cutter. The adjustable bag cutter comprises a fixed blade, a movable blade seat and an air cylinder fixed mount, wherein the fixed blade is fixedly arranged on a fixed blade seat; an L-shaped plate is rotatably arranged on the movable blade seat; a movable blade opposite to the fixed blade is fixedly arranged at the bottom of the L-shaped plate; and a wedge block is fixedly connected at one end of the L-shaped plate; an air cylinder is fixedly arranged on the air cylinder fixed mount; guiding shafts are respectively arranged at the two sides of the air cylinder fixed mount; sliders are arranged on the guiding shafts in a sliding fit manner; the front ends of air cylinder piston rods are fixedly connected on the inner side surfaces of the sliders; idler wheels are rotatably arranged on the air cylinder fixed mount which is arranged at the same side with the wedge block; locating plates are fixedly connected on the outer side surfaces of the sliders; and the upper ends of the locating plates have transverse screw holes, ejector rods are screwed at the upper ends of the locating plates, and rotary handles are rotatably arranged at the tail ends of the ejector rods. The adjustable bag cutter has the advantages of being reasonable in structure and simple to operate, realizing the adjustment of a gluing force between the movable blade and the fixed blade and an initial gluing point and meeting the cutting requirements on packaging bags made of different materials with different thicknesses.

Description

Adjustable bag cutter

technical field

The utility model relates to the field of packaging bag production and processing equipment, in particular to an adjustable bag cutting knife for cutting redundant edges of packaging bags.

Background technique

For a long time, the redundant side cutting shears of packaging bags have been used in the traditional way. If you adjust the bonding point of the cutter, you cannot control the bonding force of the cutting edge; and if you control the bonding force of the cutting edge, you cannot adjust the starting point of bonding well. Adjustment generally depends on experience, debugging efficiency is low, and the effect is poor. Usually, only one thickness or material of packaging bags can be cut, and the stability is not high.

Utility model content

The purpose of this utility model is to provide an adjustable bag cutting knife, which adopts the handle to adjust the pre-tightening force of the spring, so that the push rod fully rests on the inner side of the L-shaped plate, and at the same time, the roller rolls on the wedge-shaped plate to achieve The purpose of controlling the bonding between the moving blade and the fixed blade is to meet the cutting requirements of packaging bags of different thicknesses and materials.

The technical scheme of the utility model is as follows:

An adjustable bag cutter, including a fixed blade fixedly installed on the fixed knife seat, the inner side of the fixed blade is sequentially provided with a moving knife seat and a cylinder fixing frame, and it is characterized in that: the moving knife seat rotates An L-shaped plate is installed, and the bottom end of the L-shaped plate is fixedly equipped with a movable blade opposite to the fixed blade, and one end of the L-shaped plate is fixedly connected with a wedge block; the cylinder fixed frame is fixedly installed with a cylinder, and the cylinder is fixed. Guide shafts are respectively installed on both sides of the frame, and a slider is installed on the guide shaft through sliding fit. The front end of the piston rod of the cylinder is fixedly connected to the inner surface of the slider. Move back and forth along the guide shafts on both sides of the cylinder fixed frame, and the cylinder fixed frame on the same side as the wedge block is equipped with rollers, which can roll on the wedge block; the outer surface of the slider is fixedly connected with a positioning The upper end of the positioning plate is provided with a transverse screw hole and screwed with a push rod, and the end of the push rod is screwed with a handle.

The adjustable bag cutter is characterized in that: the inner surface of the L-shaped plate is provided with a groove, and the outer surface of the positioning plate has a protrusion matching the groove.

The adjustable bag cutter is characterized in that: a concave cavity is provided in the rotary handle, and a spring is connected between the end surface of the end of the ejector rod and the bottom surface of the concave cavity.

The beneficial effects of the utility model:

The utility model has reasonable structure and simple operation. The spring pre-tightening force is adjusted by the handle so that the ejector rod fully leans against the inner surface of the L-shaped plate, and the roller rolls on the wedge-shaped plate to adjust the extrusion between the roller and the wedge-shaped plate. The size of the force, so as to realize the adjustment of the bonding force between the movable blade and the fixed blade and the starting point of bonding, and meet the cutting requirements of packaging bags with different thicknesses and materials.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural cross-sectional view of the utility model when the movable blade and the fixed blade are fully attached.

Detailed ways

Referring to Figures 1 and 2, an adjustable bag cutter includes a fixed blade 1 fixedly mounted on a fixed knife seat, and the inside of the fixed blade 1 is provided with a moving knife seat and a cylinder fixing frame 2 in turn, and the moving knife seat passes through Rotating shaft 3 is installed with L-shaped plate 4, the bottom end of L-shaped plate 4 is fixedly installed with movable blade 5 opposite to fixed blade 1, and one end of L-shaped plate 4 is fixedly connected with wedge-shaped block 6; Cylinder 7 is arranged, and guide shaft 8 is respectively installed on the both sides of cylinder fixed frame 2, and slide block 9 is installed on the guide shaft 8 by sliding fit, and the front end of the piston rod of cylinder 7 is fixedly connected on the inner side surface of slide block 9, Under the promotion of the cylinder 7, the slide block 9 can move back and forth along the guide shafts 8 on both sides of the cylinder holder 2, and a roller 10 is installed on the cylinder holder 2 on the same side as the wedge block 6, and the roller 10 can be mounted on the wedge block 6. Rolling; the outer surface of the slider 9 is fixedly connected with a positioning plate 11, the upper end of the positioning plate 11 is provided with a transverse screw hole and is screwed with a push rod 12, and the end of the push rod 12 is screwed with a rotary handle 13.

In the utility model, the inner surface of the L-shaped plate 4 is provided with a groove 14, and the outer surface of the positioning plate 11 has a protrusion 15 matched with the groove 14; A spring 16 is connected between the end surface and the bottom surface of the cavity.

Below in conjunction with accompanying drawing, the utility model is further described:

After the packaging bag enters the edge of the knife by the movable blade 6 and the fixed blade 1, the cylinder 7 pushes the slider 9 to move forward along the guide shaft 8. At this time, the roller 10 also rolls forward along the slope of the wedge block 6. When the outer surface of the positioning plate 11 When the protrusion 15 on the top enters the groove 14 on the inner side of the L-shaped plate 4 completely, the roller 10 reaches the highest point of the slope of the wedge block 6. At this time, the rotary handle 13 is rotated. When the rotary handle 13 gradually contacts with the push rod 12 When fully tightened, the spring 16 is in a fully compressed state, and the handle 13 is continued to be rotated, so that the ejector rod 12 is pushed forward until it is completely against the inner surface of the L-shaped plate 4, and the movable blade 6 and the fixed blade 1 are kept Closely fit to cut the bag; after the bag cutting is completed, the piston rod of the cylinder 7 shrinks, driving the slider 9 to move backward along the guide shaft 8, at this time, the roller 10 also rolls backward along the slope of the wedge block 6, and the protrusion 15 and The groove 14 and the roller 10 are gradually separated from the wedge block 6. At this moment, the handle 13 is turned in the opposite direction. Moving handle 13, under the pulling force of spring 16, ejector rod 12 shrinks back gradually, separates from the inner surface of L-shaped plate 4, and L-shaped plate 4 and moving blade 6 are affected by gravity, and begin to move toward Rotate down to realize separation from the fixed blade 1.

The utility model can adjust the action progress of the cylinder 7, that is, the bonding force between the movable blade 6 and the fixed blade 1 and the starting point of bonding can be adjusted, so as to meet the cutting requirements of packaging bags of different thicknesses and materials.

Claims (3)

1. adjustable bag cutter of cutting, include the ledger-plate that is fixedly mounted on the stationary knife seat, the inboard of described ledger-plate is provided with moving knife seat and cylinder fixed mount successively, it is characterized in that: be rotatablely equipped with L shaped plate on described moving knife seat, the bottom of described L shaped plate is installed with the cutting blade relative with ledger-plate, and an end of L shaped plate is fixedly connected with wedge; Be installed with cylinder on described cylinder fixed mount, the both sides of cylinder fixed mount are separately installed with the axis of guide, on the described axis of guide by the slide block that has been slidably installed, the front end of described cylinder piston rod is fixedly connected on the medial surface of slide block, and is rotatablely equipped with roller on the cylinder fixed mount of wedge homonymy; Be fixedly connected with location-plate on the lateral surface of described slide block, the upper end of described location-plate is provided with horizontal screw and is screwed with push rod, and the end of described push rod is combined with swing handle.

2. the adjustable bag cutter of cutting according to claim 1, it is characterized in that: the medial surface of described L shaped plate is provided with groove, and the lateral surface of described location-plate has the jut that matches with groove.

3. the adjustable bag cutter of cutting according to claim 1, is characterized in that: be provided with cavity in described swing handle, be connected with spring between the end face of described push rod end and the bottom surface of cavity.

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