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CN-224224656-U - Bag cutting device for plastic bag production

CN224224656UCN 224224656 UCN224224656 UCN 224224656UCN-224224656-U

Abstract

The utility model belongs to the field of bag cutting devices, and particularly relates to a bag cutting device for plastic bag production, which comprises a base, wherein a frame is arranged at the upper end of the base, a movable column is connected inside the frame in a sliding manner, a cutting knife is fixedly connected to the lower end of the movable column, a tensioning mechanism is arranged on the outer side of the cutting knife, two symmetrically-distributed supporting plates are fixedly connected to the upper end of the frame, and rotating shafts are arranged inside the two supporting plates through bearings. According to the utility model, the structure such as the cam, the movable column and the cutting knife are additionally arranged on the frame, when the plastic bag is cut, the motor can drive the cam to rotate, the cam drives the movable column and the cutting knife to move up and down through the driving ring in the rotating process, and the cutting knife can cut the plastic bag in the up and down moving process, so that the plastic bag deformation stability caused by electric heating wire cutting can be effectively avoided.

Inventors

  • Qi Desen
  • QI DUNSHENG

Assignees

  • 上海金沪包装有限公司

Dates

Publication Date
20260512
Application Date
20250612

Claims (7)

  1. 1. The utility model provides a plastic bag production is with cutting bagging apparatus, includes base (1), its characterized in that frame (2) are installed to the upper end of base (1), the inside sliding connection of frame (2) has movable column (3), the lower extreme fixedly connected with cutting off knife (4) of movable column (3), the outside of cutting off knife (4) is provided with straining device (5), the upper end fixedly connected with two symmetric distribution's backup pad (7) of frame (2), two pivot (8) are installed through the bearing jointly to the inside of backup pad (7), the outside fixedly connected with two symmetric distribution's of pivot (8) cam (10), the upper end fixedly connected with actuating ring (11) of movable column (3), the outside of movable column (3) is provided with spring one (13), the upper end fixedly connected with motor (15) of frame (2), the outside fixedly connected with gear one (14) of pivot (8), the outside fixedly connected with gear two (16) of output shaft of motor (15).
  2. 2. The bag cutting device for plastic bag production according to claim 1, wherein the upper end of the base (1) is fixedly connected with a grooving plate (6), and the grooving plate (6) is positioned under the cutting knife (4).
  3. 3. The bag cutting device for plastic bag production according to claim 1, wherein a stabilizer (9) is fixedly connected to the middle part of the upper end of the frame (2), and the stabilizer (9) is connected with the rotating shaft (8) through a bearing.
  4. 4. The bag cutting device for plastic bag production according to claim 1, wherein one end of the first spring (13) is fixedly connected with the driving ring (11), and the other end of the first spring (13) is fixedly connected with the frame (2).
  5. 5. A bag cutting device for plastic bag production according to claim 1, wherein the cam (10) is slidingly connected with the driving ring (11), and the second gear (16) is meshed with the first gear (14).
  6. 6. The bag cutting device for plastic bag production according to claim 1, wherein the tensioning mechanism (5) comprises a fixed plate (51), two symmetrically distributed fixed plates (51) are fixedly connected to the outer side of the cutting knife (4), a plurality of evenly distributed guide rods (52) are slidably connected to the inner side of the fixed plates (51), a squeeze plate (53) is fixedly connected to the lower end of the guide rods (52), an anti-slip strip (54) is fixedly connected to the lower end of the squeeze plate (53), and a second spring (55) is arranged on the outer side of the guide rods (52).
  7. 7. The bag cutting device for plastic bag production according to claim 6, wherein one end of the second spring (55) is fixedly connected with the fixing plate (51), and the other end of the second spring (55) is fixedly connected with the extruding plate (53).

Description

Bag cutting device for plastic bag production Technical Field The utility model relates to the technical field of bag cutting devices, in particular to a bag cutting device for plastic bag production. Background The invention discloses a bag cutting device for producing and processing an environment-friendly plastic bag, which is provided by CN112406180B according to patent grant bulletin number, wherein the bag cutting device for producing and processing the environment-friendly plastic bag comprises two groups of extrusion belts which are parallel to each other, conductive plates attached to the inner walls of the two sides of a protective cover and closest to the inner walls of the extrusion belts are respectively arranged on the inner walls of the two sides of the protective cover, a battery positioned in the conductive plates is electrically connected with a plurality of groups of electromagnetic coils arranged in the extrusion belts, a plurality of groups of cutting plates are connected between the two groups of extrusion belts at equal intervals, and electric heating wires are arranged in the cutting plates. The bag cutting device for producing and processing the environment-friendly plastic bags is characterized in that an extrusion belt is arranged in a cutting mechanism, and an electric heating wire is arranged in the extrusion belt, so that the plastic bags can be cut in the process of transporting the plastic bags; But when carrying out the hot cutting to the plastic bag among the prior art, the temperature of heating wire is too high, leads to easily gluing in the outside at the heating wire at cutting in-process plastic bag, causes the plastic bag to take place deformation, leads to the defective rate to rise to can't tighten at the in-process plastic bag of cutting, cause the cutting skew, influence cutting quality. Accordingly, improvements in the art are needed. Disclosure of utility model The utility model aims to provide a bag cutting device for plastic bag production, which solves the problems that a heating wire cutting mode is easy to cause plastic bag deformation and easy to cut in the cutting process. The bag cutting device for plastic bag production comprises a base, wherein a frame is arranged at the upper end of the base, a moving column is connected inside the frame in a sliding mode, a cutting knife is fixedly connected to the lower end of the moving column, a tensioning mechanism is arranged on the outer side of the cutting knife, two symmetrically-distributed supporting plates are fixedly connected to the upper end of the frame, a rotating shaft is arranged inside the two supporting plates together through a bearing, two symmetrically-distributed cams are fixedly connected to the outer side of the rotating shaft, a driving ring is fixedly connected to the upper end of the moving column, a first spring is arranged on the outer side of the moving column, a motor is fixedly connected to the upper end of the frame, a first gear is fixedly connected to the outer side of the rotating shaft, and a second gear is fixedly connected to the outer side of an output shaft of the motor. Preferably, the upper end of the base is fixedly connected with a grooving plate, the grooving plate is located right below the cutting knife, and the grooving plate guides cutting of the cutting knife. Preferably, a stabilizing frame is fixedly connected to the middle part of the upper end of the frame, the stabilizing frame is connected with the rotating shaft through a bearing, and the stabilizing frame can increase the rotation stability of the rotating shaft. Preferably, one end of the first spring is fixedly connected with the driving ring, the other end of the first spring is fixedly connected with the frame, and the first spring can drive the driving ring to automatically reset through elasticity. Preferably, the cam is slidably connected with the driving ring, the second gear is meshed with the first gear, and the cam can drive the driving ring to move up and down through rotation. Preferably, the tensioning mechanism comprises a fixed plate, two symmetrically distributed fixed plates are fixedly connected to the outer side of the cutting knife, a plurality of evenly distributed guide rods are connected to the inner portion of the fixed plate in a sliding mode, an extrusion plate is fixedly connected to the lower end of the guide rods, an anti-slip strip is fixedly connected to the lower end of the extrusion plate, a second spring is arranged on the outer side of the guide rods, and the extrusion plate can extrude and tension the plastic bag through the anti-slip strip. Preferably, one end of the second spring is fixedly connected with the fixing plate, the other end of the second spring is fixedly connected with the extrusion plate, and the second spring can support the extrusion plate through elasticity. Compared with the prior art, the utility model has the following beneficial effects: 1. Accord