CN220053076U - Wrapping bag substrate cutting device - Google Patents

Abstract

The utility model discloses a packaging bag substrate cutting device, which comprises a cutter holder, wherein the cutter holder is provided with a cutter, the cutter is provided with a lifting mechanism for driving the cutter to lift and cut a packaging bag substrate, the lifting mechanism comprises a motor, an eccentric wheel, a transmission arm and a belt transmission assembly, the belt transmission assembly at least comprises a pair of transmission wheels and a transmission belt, the transmission wheels comprise a driving wheel and a driven wheel, the driving wheel and the driven wheel are linked through the transmission belt, the diameters of the driving wheel and the driven wheel are different, the driving wheel is connected with an output shaft of the motor, the driven wheel is connected with the eccentric wheel, and two ends of the transmission arm are respectively connected with the eccentric wheel and the cutter.

Description

Wrapping bag substrate cutting device

Technical Field

The utility model relates to the technical field of packaging bag production, in particular to a packaging bag base material cutting device.

Background

The package bag forming machine is a special device for package bag production. The conventional packaging bag substrate is generally in a whole shape formed by a cutting knife when being fed into a forming assembly, and then is pressed into the forming assembly by a pressing assembly to form the packaging bag, but along with the change of the user requirement and the packaging bag shape, the substrate may need to be cut or perforated.

Patent CN218558129U discloses a base material cutting and punching mechanism of a packaging bag forming machine, which comprises a cutter holder, wherein a cutter is arranged on the cutter holder, the cutter is connected with a lifting driving assembly, the cutter holder is connected with a first horizontal driving assembly, the first horizontal driving assembly can drive the cutter holder to move along the conveying direction of the base material, the cutter holder and the first horizontal driving assembly are arranged on a movable seat, the movable seat is connected with a second horizontal driving assembly, and the second horizontal driving assembly can drive the movable seat to move along the direction perpendicular to the conveying direction of the base material; the lifting driving assembly comprises a first motor, the output end of the first motor is connected with a driving wheel, the driving wheel is eccentrically hinged with one end of a driving arm, the other end of the driving arm is hinged with a cutter, and the cutter is movably arranged in a guide groove on the cutter holder.

Problems in the above patents: the motor directly acts on the transmission arm, and output torque is less, and punching and cutting effects are not good, and the cutting mechanism is improved based on the problem.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art and provides a packaging bag substrate cutting device.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a wrapping bag substrate cutting device, includes the blade holder, be provided with the cutter on the blade holder, be provided with the elevating system who is used for driving its lift and cuts the wrapping bag substrate on the cutter, elevating system includes motor, eccentric wheel, drive arm and belt drive subassembly, belt drive subassembly includes a pair of drive wheel and conveyer belt at least, the drive wheel includes the action wheel and follows from and pass through the conveyer belt linkage between the wheel and the two, the diameter of action wheel and follow from the wheel is different, the action wheel is connected with the output shaft of motor, follow from being connected with the eccentric wheel, the both ends of drive arm are connected with eccentric wheel and cutter respectively.

As a preferable technical scheme of the utility model, the transmission arm comprises a connecting arm, and a first connector and a second connector which are arranged at two ends of the connecting arm, wherein the first connector is connected with the eccentric wheel through an eccentric shaft, and the second connector is connected with the cutter through a connecting shaft.

As a preferable technical scheme of the utility model, the cutter is of a U-shaped structure, a U-shaped groove is formed on the cutter, and the second connector is rotationally connected to the inner wall of the U-shaped groove through a connecting shaft.

As a preferable technical scheme of the utility model, two groups of driving wheels are arranged, two mounting plates are arranged on the cutter seat at intervals, a group of driving wheels are arranged on each mounting plate, one mounting plate is provided with the motor for driving the driving wheels, and the other mounting plate is rotatably provided with the eccentric wheel which is in linkage with the driving wheels.

As a preferable technical scheme of the utility model, the cutter holder comprises an upper cutter plate and a lower cutter plate which are arranged at intervals and are connected through a connecting plate, a groove for a packaging bag substrate to pass through is formed between the upper cutter plate and the lower cutter plate, grooves are respectively formed in the upper cutter plate and the lower cutter plate along the vertical direction, and the shape of the grooves is matched with that of the cutter.

In summary, the beneficial effects of the utility model are as follows: the motor can be matched with a servo motor for use, the output end of the motor is linked with a belt transmission assembly, and the output torque is large through secondary transmission, so that the cutting part of the packaging bag substrate can be completely punched when cutting.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the elevating mechanism according to the present utility model;

fig. 3 is a schematic view of the cooperation structure of the cutter and the cutter holder in the utility model.

Reference numerals: 1. a tool apron; 2. a cutter; 3. a lifting mechanism; 4. a motor; 5. an eccentric wheel; 6. a transmission arm; 7. a belt drive assembly; 8. a conveyor belt; 9. a driving wheel; 10. driven wheel; 11. a first joint; 12. a second joint; 13. a U-shaped groove; 14. a mounting plate; 15. an upper knife board; 16. a lower knife board; 17. a connecting plate; 18. a groove; 19. a groove; 20. and a connecting arm.

Description of the embodiments

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Specific embodiments of the present utility model are described below with reference to the accompanying drawings.

The utility model provides a wrapping bag substrate cutting device as shown in fig. 1 through 3, including blade holder 1, be provided with cutter 2 on the blade holder 1, be provided with on the cutter 2 and be used for driving its elevating system 3 that goes up and down and cut the wrapping bag substrate, elevating system 3 includes motor 4, eccentric wheel 5, drive arm 6 and belt drive subassembly 7, belt drive subassembly 7 includes a pair of drive wheel and conveyer belt 8 at least, the drive wheel includes action wheel 9 and follows the driving wheel 10 and passes through conveyer belt 8 linkage between the two, the diameter of action wheel 9 and follow driving wheel 10 is different, action wheel 9 is connected with the output shaft of motor 4, follow driving wheel 10 and be connected with eccentric wheel 5, the both ends of drive arm 6 are connected with eccentric wheel 5 and cutter 2 respectively.

The traditional motor 4 directly drives the eccentric wheel 5 and the transmission arm 6 to rotate, the output torque is small, the cutting force of the cutter 2 is insufficient, so that the cutting part of the packaging bag base material cannot be completely punched down.

The driving arm 6 comprises a connecting arm 20, a first joint 11 and a second joint 12 which are arranged at two ends of the connecting arm 20, the first joint 11 is connected with the eccentric wheel 5 through an eccentric shaft, and the second joint 12 is connected with the cutter 2 through a connecting shaft.

The cutter 2 is U-shaped structure and the cutter 2 is last to be formed with U-shaped groove 13, and the second connects 12 through the connecting axle rotation to be connected in U-shaped groove 13 inner wall.

The driving wheels are provided with two groups, two mounting plates 14 are arranged on the tool apron 1 at intervals, a group of driving wheels are arranged on each mounting plate 14, a motor 4 for driving the driving wheels is arranged on one mounting plate 14, an eccentric wheel 5 which is in linkage with the driving wheels is rotatably arranged on the other mounting plate 14, and two groups of driving wheels and a conveying belt 8 are arranged to realize two-stage speed reduction and improve the output torque of the driving arm 6.

The cutter holder 1 comprises an upper cutter plate 15 and a lower cutter plate 16 which are arranged at intervals and are connected through a connecting plate 17, in the embodiment, the upper cutter plate 15, the lower cutter plate 16 and the connecting plate 17 are integrally formed, a groove 19 for a packaging bag substrate to pass through is formed between the upper cutter plate 15 and the lower cutter plate 16, grooves 18 are respectively formed in the upper cutter plate 15 and the lower cutter plate 16 along the vertical direction, the shape of the grooves 18 is matched with that of the cutter 2, the transmission arm 6 swings up and down along with the rotation of the eccentric wheel 5, and accordingly the cutter 2 is controlled to cut the packaging bag substrate, and a cutting part falls down from the grooves 18 of the lower cutter plate 16.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description as preferred embodiments of the utility model, but rather that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a wrapping bag substrate cutting device, includes the blade holder, be provided with the cutter on the blade holder, be provided with the elevating system that is used for driving its lift and cuts wrapping bag substrate on the cutter, its characterized in that: the lifting mechanism comprises a motor, an eccentric wheel, a transmission arm and a belt transmission assembly, wherein the belt transmission assembly at least comprises a pair of transmission wheels and a transmission belt, the transmission wheels comprise a driving wheel and a driven wheel which are linked through the transmission belt, the diameters of the driving wheel and the driven wheel are different, the driving wheel is connected with an output shaft of the motor, the driven wheel is connected with the eccentric wheel, and two ends of the transmission arm are respectively connected with the eccentric wheel and a cutter.

2. The packaging bag substrate cutting device according to claim 1, wherein: the transmission arm comprises a connecting arm, and a first connector and a second connector which are arranged at two ends of the connecting arm, wherein the first connector is connected with the eccentric wheel through an eccentric shaft, and the second connector is connected with the cutter through a connecting shaft.

3. The packaging bag substrate cutting device according to claim 2, wherein: the cutter is U-shaped structure and the cutter is last to be formed with the U-shaped groove, the second connects through the connecting axle rotation and connects in U-shaped groove inner wall.

4. The packaging bag substrate cutting device according to claim 1, wherein: the driving wheels are provided with two groups, two mounting plates are arranged on the cutter seat at intervals, a group of driving wheels are arranged on each mounting plate, a motor for driving the driving wheels is arranged on one mounting plate, and an eccentric wheel which is in linkage with the driving wheels is rotatably arranged on the other mounting plate.

5. The packaging bag substrate cutting device according to claim 1, wherein: the knife holder comprises an upper knife plate and a lower knife plate which are arranged at intervals and are connected through a connecting plate, a groove for a packaging bag substrate to pass through is formed between the upper knife plate and the lower knife plate, the upper knife plate and the lower knife plate are respectively provided with a groove along the vertical direction, and the shape of the groove is matched with that of the cutter.