Hot cutting device for plastic bag production

Abstract

The utility model relates to the technical field of plastic bag production and processing, in particular to a hot cutting device for plastic bag production, which comprises a bottom plate, a mounting plate connected to the bottom plate, transmission components connected to the front side and the rear side of the mounting plate on the bottom plate, a reciprocating mechanism and a limiting component connected to the mounting plate, and a connecting plate connected between the reciprocating mechanism and the limiting component. An electric heating knife is connected to the connecting plate, a cleaning assembly is connected to the position, in the mounting plate, under the electric heating knife, the cleaning assembly comprises two scrapers which are symmetrically connected with each other with the electric heating knife as the axis, the scrapers are connected to a connecting block, the other end of the connecting block is connected to a sliding block, the sliding block is slidably connected into a sliding groove, and a lead screw is rotationally connected into the sliding groove; the lead screw penetrates through and is meshed with the sliding block, and one end of the lead screw is connected with an output shaft of the motor. The reciprocating mechanism is matched with the limiting assembly so that the electric heating knife can stably conduct repeated hot cutting in the vertical direction, the cutting edge of the electric heating knife is cleaned through the cleaning assembly, and the plastic bag hot cutting quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag production and processing technology, and in particular to a hot cutting device for plastic bag production. Background Technology

[0002] Plastic bags, made primarily of plastic, are essential items in daily life, commonly used to hold other goods. They are widely used due to their low cost, light weight, large capacity, and ease of storage. During the production and processing of plastic bags, rolls of plastic need to be cut into individual bags. Current technology uses heat-cutting equipment to process the plastic. However, during the use of this equipment, some plastic can stick to the heating blades, affecting the quality of the heat-cut plastic bags. Utility Model Content

[0003] The purpose of this application is to provide a heat-cutting device for plastic bag production, which aims to solve the problems in the prior art.

[0004] This application provides a hot-cutting device for plastic bag production, including a base plate, an mounting plate fixedly connected to the base plate, transmission components fixedly connected to the front and rear sides of the mounting plate, a reciprocating mechanism and a limiting component fixedly connected to the mounting plate, a connecting plate fixedly connected between the reciprocating mechanism and the limiting component, an electric heating knife fixedly connected to the connecting plate, and a cleaning component fixedly connected inside the mounting plate directly below the electric heating knife. The cleaning component includes two scrapers symmetrically connected about the electric heating knife as an axis, the scrapers fixedly connected to a connecting block, the other end of the connecting block fixedly connected to a slider, the slider slidably connected in a groove, a lead screw rotatably connected in the groove, the lead screw passing through and meshing with the slider, and one end of the lead screw fixedly connected to the output shaft of a motor.

[0005] Furthermore, the transmission assembly includes two sets of support seats, and each set of support seats is rotatably connected to two vertically parallel rotating shafts. One end of each rotating shaft is fixedly connected to the output shaft of the motor. An input roller group or an output roller group is sleeved on the outside of the rotating shaft. The input roller group is located on the front side of the mounting plate, and the output roller group is located on the rear side of the mounting plate.

[0006] Furthermore, the input roller group includes two input rollers, which are vertically connected side by side, with the distance between the two input rollers being the thickness of the plastic bag, and the bottom end of the upper input roller being slightly higher than the height of the mounting plate; the output roller group includes two output rollers, which are vertically connected side by side, with the distance between the two output rollers being the thickness of the plastic bag, and the bottom end of the upper output roller being slightly lower than the height of the mounting plate.

[0007] Furthermore, the reciprocating mechanism includes a motor base, in which a motor is fixedly connected. The output shaft of the motor is connected to a drive gear, which is rotatably connected to a mounting base. The motor base is fixedly connected to the mounting base.

[0008] Furthermore, the drive gear is fixedly connected to one end of the rotating shaft, the rotating shaft is rotatably connected to the mounting base, the other end of the rotating shaft is fixedly connected to a turntable, a rotating rod is rotatably connected to the turntable, the other end of the rotating rod is rotatably connected to a connecting rod, an adjusting rod is fixedly connected to the connecting rod, the adjusting rod passes through and is slidably connected to the side plate of the motor base, and the end of the adjusting rod away from the connecting rod is fixedly connected to the connecting plate.

[0009] Furthermore, the center of rotation of the rotating rod is located at the eccentric point of the turntable.

[0010] Furthermore, the limiting component includes a limiting groove, which is fixedly connected to the mounting plate. A limiting rod is slidably connected within the limiting groove, and one end of the limiting rod away from the limiting groove is fixedly connected to the connecting plate.

[0011] Furthermore, the motor and slide of the cleaning component are fixedly connected inside the mounting plate, and the extension direction of the two slides is parallel to the side blade of the electric heating knife that is close to it. One side of the scraper is flush with the upper surface of the mounting plate.

[0012] The beneficial effects of this utility model are: the reciprocating mechanism and the limiting component enable the electric hot knife to perform stable repeated hot cutting in the vertical direction, and the cleaning component cleans the blade of the electric hot knife, which can improve the quality of hot cutting of plastic bags. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the reciprocating mechanism.

[0015] Figure 3 This is a structural diagram of the cleaning component.

[0016] In the picture:

[0017] 1-Base plate; 2-Mounting plate; 3-Reciprocating mechanism; 4-Connecting plate; 5-Electrothermal knife; 6-Cleaning assembly; 7-Scraper; 8-Connecting block; 9-Slider; 10-Groove; 11-Lead screw; 12-Support seat; 13-Infeed roller group; 14-Outfeed roller group; 15-Motor seat; 16-Drive gear; 17-Mounting seat; 18-Turntable; 19-Rotating rod; 20-Connecting rod; 21-Adjusting rod; 22-Limit groove; 23-Limit rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-3 The illustrated heat-cutting device for plastic bag production includes a base plate 1, on which an mounting plate 2 is fixedly connected. Transmission components are fixedly connected to the front and rear sides of the mounting plate 2 on the base plate 1. A reciprocating mechanism 3 and a limiting component are fixedly connected to the mounting plate 2. A connecting plate 4 is fixedly connected between the reciprocating mechanism 3 and the limiting component. An electric heating blade 5 is fixedly connected to the connecting plate 4. The reciprocating mechanism 3, in conjunction with the limiting component, allows the electric heating blade 5 to stably perform repeated heat cutting in the vertical direction. A cleaning component 6 is fixedly connected to the mounting plate 2 directly below the electric heating blade 5. Cleaning the electric heating blade 5 using the cleaning component 6 improves the quality of the plastic bag heat cutting. The cleaning assembly 6 includes two scrapers 7 symmetrically connected about the electric heating blade 5. The scrapers 7 are fixedly connected to the connecting block 8. The other end of the connecting block 8 is fixedly connected to the slider 9. The slider 9 is slidably connected in the slide groove 10. A lead screw 11 is rotatably connected in the slide groove 10. The lead screw 11 passes through and meshes with the slider 9. One end of the lead screw 11 is fixedly connected to the output shaft of the motor.

[0020] The transmission assembly includes two sets of support bases 12, each set of support bases 12 rotatably connected to two vertically parallel rotating shafts. One end of each rotating shaft is fixedly connected to the output shaft of a motor. An infeed roller group 13 or an outfeed roller group 14 is sleeved on the outside of the rotating shaft. The infeed roller group 13 is located on the front side of the mounting plate 2, and the outfeed roller group 14 is located on the rear side of the mounting plate 2. The two sets of motors connecting the infeed roller group 13 or the transmission roller group rotate in opposite directions, specifically, the upper motor rotates counterclockwise and the lower motor rotates clockwise, allowing the plastic bag to be transmitted from front to back. The motor group connected to the outfeed roller group 14 rotates slightly faster than the motor group connected to the infeed roller group 13, allowing the plastic bag to be tightened when one side slides off the mounting plate 2 onto the outfeed roller group 14, resulting in a better heat-cutting effect.

[0021] The input roller group 13 includes two input rollers, which are vertically connected side by side. The distance between the two input rollers is the thickness of the plastic bag, and the bottom of the upper input roller is slightly higher than the height of the mounting plate 2. The output roller group 14 includes two output rollers, which are vertically connected side by side. The distance between the two output rollers is the thickness of the plastic bag, and the bottom of the upper output roller is slightly lower than the height of the mounting plate 2.

[0022] The reciprocating mechanism 3 includes a motor base 15, in which a motor is fixedly connected. The output shaft of the motor is connected to a drive gear 16, which is rotatably connected to a mounting base 17. The motor base 15 is fixedly connected to the mounting base 17.

[0023] The drive gear 16 is fixedly connected to one end of the rotating shaft, which is rotatably connected to the mounting base 17. The other end of the rotating shaft is fixedly connected to a turntable 18, and a rotating rod 19 is rotatably connected to the turntable 18. The other end of the rotating rod 19 is rotatably connected to a connecting rod 20, and an adjusting rod 21 is fixedly connected to the connecting rod 20. The adjusting rod 21 passes through and is slidably connected to the upper side plate of the motor base 15. The end of the adjusting rod 21 away from the connecting rod 20 is fixedly connected to the connecting plate 4.

[0024] The center of rotation of the rotating rod 19 is located at the eccentric point of the turntable 18.

[0025] The limiting component includes a limiting groove 22, which is fixedly connected to the mounting plate 2. A limiting rod 23 is slidably connected in the limiting groove 22, and one end of the limiting rod 23 away from the limiting groove 22 is fixedly connected to the connecting plate 4.

[0026] The motor and slide 10 of the cleaning component 6 are fixedly connected in the mounting plate 2. The extension direction of the slide 10 on both sides is parallel to the blade of the electric heating knife 5 on the side closest to it. One side of the scraper 7 is flush with the upper surface of the mounting plate 2. The blade of the scraper 7 is close to the blade of the electric heating knife 5. The above structure allows the blade of the scraper 7 to scrape off the plastic along the blade of the electric heating knife.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hot-cutting device for producing plastic bags, characterized in that, The device includes a base plate, on which a mounting plate is fixedly connected. Transmission components are fixedly connected to the front and rear sides of the mounting plate. A reciprocating mechanism and a limiting component are fixedly connected to the mounting plate. A connecting plate is fixedly connected between the reciprocating mechanism and the limiting component. An electric heating knife is fixedly connected to the connecting plate. A cleaning component is fixedly connected to the mounting plate directly below the electric heating knife. The cleaning component includes two scrapers symmetrically connected about the electric heating knife as an axis. The scrapers are fixedly connected to a connecting block. The other end of the connecting block is fixedly connected to a slider. The slider is slidably connected in a groove. A lead screw is rotatably connected in the groove, passing through and meshing with the slider. One end of the lead screw is fixedly connected to the output shaft of a motor.

2. The hot-cutting device for plastic bag production according to claim 1, characterized in that, The transmission assembly includes two sets of support seats, and each set of support seats is rotatably connected to two vertically parallel rotating shafts. One end of each rotating shaft is fixedly connected to the output shaft of the motor. An input roller group or an output roller group is sleeved on the outside of the rotating shaft. The input roller group is located on the front side of the mounting plate, and the output roller group is located on the rear side of the mounting plate.

3. The hot-cutting device for plastic bag production according to claim 2, characterized in that, The input roller assembly includes two input rollers, which are vertically connected side by side. The distance between the two input rollers is the thickness of the plastic bag, and the bottom of the upper input roller is slightly higher than the height of the mounting plate. The output roller assembly includes two output rollers, which are vertically connected side by side. The distance between the two output rollers is the thickness of the plastic bag, and the bottom of the upper output roller is slightly lower than the height of the mounting plate.

4. The hot-cutting device for plastic bag production according to claim 1, characterized in that, The reciprocating mechanism includes a motor base, in which a motor is fixedly connected. The output shaft of the motor on the motor base is connected to a drive gear, which is rotatably connected to a mounting base. The motor base is fixedly connected to the mounting base.

5. The hot-cutting device for plastic bag production according to claim 4, characterized in that, The drive gear is fixedly connected to one end of the rotating shaft, the rotating shaft is rotatably connected to the mounting base, the other end of the rotating shaft is fixedly connected to a turntable, a rotating rod is rotatably connected to the turntable, the other end of the rotating rod is rotatably connected to a connecting rod, an adjusting rod is fixedly connected to the connecting rod, the adjusting rod passes through and is slidably connected to the side plate of the motor base, and the end of the adjusting rod away from the connecting rod is fixedly connected to the connecting plate.

6. The hot-cutting device for plastic bag production according to claim 5, characterized in that, The center of rotation of the rotating rod is located at the eccentric point of the turntable.

7. The hot-cutting device for plastic bag production according to claim 1, characterized in that, The limiting component includes a limiting groove, which is fixedly connected to the mounting plate. A limiting rod is slidably connected in the limiting groove, and the end of the limiting rod away from the limiting groove is fixedly connected to the connecting plate.

8. The hot-cutting device for plastic bag production according to claim 1, characterized in that, The motor and slide of the cleaning component are fixedly connected inside the mounting plate. The extension direction of the slides on both sides is parallel to the blade of the electric heating knife on the side closest to it. One side of the scraper is flush with the upper surface of the mounting plate.

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