Cutting device for degradable plastic bag production

Abstract

The utility model discloses a cutting device for degradable plastic bag production, which comprises a base plate, the surface of the base plate is fixedly connected with a conveying mechanism and a continuous cutting mechanism respectively, and the conveying mechanism is arranged on the left side of the continuous cutting mechanism. The continuous cutting mechanism comprises a first supporting plate, a second supporting plate and two hydraulic push rods, the inner sides of the first supporting plate and the second supporting plate are rotationally connected with a first pressing roller, the outer side of the second supporting plate is fixedly connected with a first servo motor, and a plurality of flattening mechanisms are arranged on the outer surface of the first pressing roller in an annular array mode; a cutting assembly is arranged in the first pressing roller, the opposite faces of the two end blocks are rotationally connected with a second pressing roller, and a cutting triggering mechanism is arranged at the upper end of the first supporting plate. And by arranging the cutting triggering mechanism, cutting work can be conducted when the cutting assembly rotates to be vertically downward, in the plastic bag cutting process, the conveying mechanism and the first pressing roller can continuously run, and therefore the plastic bag cutting efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to a cutting device for producing degradable plastic bags. Background Art

[0002] Plastic bags are bags made of plastic as the main raw material. They are indispensable items in people's daily lives. Due to the increasing demand for plastic bags, the production of plastic bags is also increasing. In the production process of plastic bags, cutting equipment is usually required to cut the plastic bags.

[0003] Through searching, CN218255460U was found, which discloses a cutting device for producing degradable plastic bags, including a supporting base, a compression mechanism welded on the left end of the upper surface of the supporting base, a feeding mechanism welded on the left side of the upper surface of the supporting base, and a cutting mechanism welded on the right side of the upper surface of the supporting base; when the cutting action is in progress, the extrusion block moves with the cutting knife, and after contacting the surface of the plastic bag, the extrusion block squeezes it flat, and the cutting knife continues to move downward to cut and divide the plastic bag, which can prevent the plastic bag from being not flat enough during cutting and causing poor quality, and has higher work efficiency. The cut plastic bag slides down along the slide groove to leave the upper surface of the supporting base and enters the collection position for recovery, so that the cut plastic bag can be collected quickly and conveniently.

[0004] However, there are still some problems and shortcomings during use: when cutting degradable plastic bags, if the feeding mechanism is not closed, the plastic bags will accumulate on one side of the cutting mechanism, thereby affecting the subsequent cutting work; if the feeding mechanism is closed, this will greatly reduce the cutting efficiency of the plastic bags. Therefore, we need a cutting device for the production of degradable plastic bags. Utility Model Content

[0005] The purpose of the utility model is to provide a cutting device for producing degradable plastic bags to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a cutting device for producing degradable plastic bags, comprising a substrate, the surface of which is fixedly connected with a conveying mechanism and a continuous cutting mechanism, and the conveying mechanism is arranged on the left side of the continuous cutting mechanism.

[0007] The continuous cutting mechanism includes a first support plate, a second support plate and two hydraulic push rods, the first support plate and the second support plate are rotatably connected to the inner sides of the first pressure roller, the outer side of the second support plate is fixedly connected to the first servo motor, the rotating end of the first servo motor is fixedly connected to the end of the first pressure roller, the outer surface of the first pressure roller is provided with a plurality of flattening mechanisms in a ring array, the interior of the first pressure roller is provided with a cutting assembly, the upper ends of the two hydraulic push rods are fixedly connected to end blocks, the opposite surfaces of the two end blocks are rotatably connected to the second pressure roller, and the upper end of the first support plate is provided with a cutting trigger mechanism.

[0008] Preferably, the flattening mechanism includes a plurality of first telescopic rods, a plurality of first springs and a strip pressure plate, the plurality of first telescopic rods are fixedly connected to the surface of the first pressure roller, the strip pressure plate is fixedly connected to the end of the first telescopic rod, and the first spring is sleeved on the outside of the first telescopic rod.

[0009] Preferably, a knife groove is provided on the surface of the first pressing roller and is located between the two flattening mechanisms. The cutting assembly includes a pneumatic telescopic rod and a cutter. A cavity is provided inside the first pressing roller. The pneumatic telescopic rod is fixedly connected to the inner wall of the cavity. The cutter is fixedly connected to the lower end of the pneumatic telescopic rod, and the cutter is slidably connected to the knife groove.

[0010] Preferably, the cutting trigger mechanism includes a second telescopic rod, a second spring, a pressing block and a contact switch, the second telescopic rod is fixedly connected to the upper end of the first support plate, the second spring is sleeved on the outside of the second telescopic rod, the pressing block is fixedly connected to the end of the second telescopic rod away from the first support plate, the contact switch is fixedly connected to the side of the first pressure roller, the contact switch and the pressing block correspond to each other, and the contact switch is electrically connected to the pneumatic telescopic rod.

[0011] Preferably, the rotating end of the first pressing roller is fixedly connected to a first gear, the rotating end of the second pressing roller is fixedly connected to a second gear, and the first gear and the second gear are meshed with each other, and a sink groove is provided on the surface of the second pressing roller.

[0012] Preferably, the first gear and the second gear have the same shape.

[0013] Preferably, a storage box is magnetically fixed to the surface of the substrate, and the storage box is located below and to the right of the continuous cutting mechanism.

[0014] Beneficial Effects

[0015] The utility model provides a cutting device for producing degradable plastic bags, which has the following beneficial effects:

[0016] 1. The cutting device for producing degradable plastic bags, when cutting the degradable plastic bags, uses the first servo motor to drive the first pressing roller to rotate, so that multiple flattening mechanisms can rotate around the first pressing roller. The flattening mechanism and the second pressing roller cooperate with each other to flatten and fix the plastic bag. By setting a cutting trigger mechanism, the cutting component can be rotated to a vertical downward position to perform cutting. During the plastic bag cutting process, the conveying mechanism and the first pressing roller can continue to operate, thereby greatly improving the plastic bag cutting efficiency.

[0017] 2. The cutting device for producing degradable plastic bags is provided with a first gear, a second gear and a sinking groove. The first gear and the second gear are meshed with each other for transmission. When the first pressure roller rotates, the second pressure roller can be driven to rotate at the same speed, so that the sinking groove is always corresponding to the cutter. By providing the sinking groove, the contact between the cutter and the second pressure roller can be effectively avoided, thereby effectively improving the service life of the cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a cutting device for producing degradable plastic bags proposed by the utility model;

[0019] Figure 2 This is a right side structural schematic diagram of a cutting device for producing degradable plastic bags proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of a first pressing roller of a cutting device for producing degradable plastic bags proposed by the utility model;

[0021] Figure 4 A cutting device for producing degradable plastic bags proposed by the utility model Figure 1 A is a schematic diagram of the enlarged structure.

[0022] In the figure: 1. substrate; 2. conveying mechanism; 3. continuous cutting mechanism; 4. first support plate; 5. second support plate; 6. hydraulic push rod; 7. first pressure roller; 8. first servo motor; 9. flattening mechanism; 10. cutting assembly; 11. second pressure roller; 12. cutting trigger mechanism; 13. first telescopic rod; 14. first spring; 15. strip pressure plate; 16. knife groove; 17. pneumatic telescopic rod; 18. cutter; 19. second telescopic rod; 20. second spring; 21. pressing block; 22. contact switch; 23. first gear; 24. second gear; 25. sink; 26. storage box. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a cutting device for producing degradable plastic bags, comprising a substrate 1, the surface of the substrate 1 is respectively fixedly connected with a conveying mechanism 2 and a continuous cutting mechanism 3, the conveying mechanism 2 is arranged on the left side of the continuous cutting mechanism 3, the conveying mechanism 2 comprises a conveying roller, a conveying belt and a driving motor, the conveying belt is sleeved on the outer surface of two conveying rollers, and the conveying rollers are powered by a driving motor.

[0025] The continuous cutting mechanism 3 includes a first support plate 4, a second support plate 5 and two hydraulic push rods 6. The first support plate 4 and the second support plate 5 are rotatably connected to the inner side of a first pressing roller 7. The outer side of the second support plate 5 is fixedly connected to a first servo motor 8. The rotating end of the first servo motor 8 is fixedly connected to the end of the first pressing roller 7. The outer surface of the first pressing roller 7 is provided with a plurality of flattening mechanisms 9 in an annular array. A cutting assembly 10 is provided inside the first pressing roller 7. The upper ends of the two hydraulic push rods 6 are fixedly connected to end blocks. The opposite surfaces of the two end blocks are rotatably connected to the second pressing roller 11. A cutting trigger mechanism 12 is provided at the upper end of the first support plate 4. When cutting the degradable plastic bag, the first servo motor 8 is used to drive the first pressing roller 7 to rotate, so that the multiple flattening mechanisms 9 can rotate around the first pressing roller 7. The flattening mechanism 9 and the second pressing roller 11 cooperate with each other to flatten and fix the plastic bag. By setting the cutting trigger mechanism 12, the cutting assembly 10 can be rotated to a vertical downward position to perform cutting. During the plastic bag cutting process, the conveying mechanism 2 and the first pressing roller 7 can continue to operate, thereby greatly improving the plastic bag cutting efficiency.

[0026] The flattening mechanism 9 includes a plurality of first telescopic rods 13 , a plurality of first springs 14 and a strip pressure plate 15 . The plurality of first telescopic rods 13 are fixedly connected to the surface of the first pressure roller 7 . The strip pressure plate 15 is fixedly connected to the end of the first telescopic rod 13 . The first spring 14 is sleeved on the outside of the first telescopic rod 13 .

[0027] The surface of the first pressing roller 7 is provided with a knife groove 16 located between the two flattening mechanisms 9. The cutting assembly 10 includes a pneumatic telescopic rod 17 and a cutter 18. A cavity is provided inside the first pressing roller 7. The pneumatic telescopic rod 17 is fixedly connected to the inner wall of the cavity. The cutter 18 is fixedly connected to the lower end of the pneumatic telescopic rod 17, and the cutter 18 is slidably connected to the knife groove 16.

[0028] The cutting trigger mechanism 12 includes a second telescopic rod 19, a second spring 20, a pressing block 21 and a contact switch 22. The second telescopic rod 19 is fixedly connected to the upper end of the first support plate 4, the second spring 20 is sleeved on the outer side of the second telescopic rod 19, the pressing block 21 is fixedly connected to the end of the second telescopic rod 19 away from the first support plate 4, the contact switch 22 is fixedly connected to the side of the first pressing roller 7, the contact switch 22 and the pressing block 21 correspond to each other, and the contact switch 22 is electrically connected to the pneumatic telescopic rod 17. By setting the cutting trigger mechanism 12, when the cutting assembly 10 is vertically downward, the second telescopic rod 19 is used for support. The pressing block 21 will contact the contact switch 22 under the elastic force of the second spring 20, thereby starting the contact switch 22. The pneumatic telescopic rod 17 can be opened by the contact switch 22. By extending the pneumatic telescopic rod 17, the cutter 18 can be driven to extend from the knife groove 16, thereby realizing the cutting operation of the plastic bag.

[0029] A first gear 23 is fixedly connected to the rotating end of the first pressing roller 7, and a second gear 24 is fixedly connected to the rotating end of the second pressing roller 11, and the first gear 23 and the second gear 24 are meshed with each other. A groove 25 is provided on the surface of the second pressing roller 11, and the first gear 23 and the second gear 24 have the same shape. By arranging the first gear 23, the second gear 24 and the groove 25, and utilizing the mutual meshing transmission of the first gear 23 and the second gear 24, when the first pressing roller 7 rotates, the second pressing roller 11 can be driven to rotate at the same speed, so that the groove 25 is always corresponding to the cutter 18. By arranging the groove 25, the contact between the cutter 18 and the second pressing roller 11 can be effectively avoided, thereby effectively improving the service life of the cutter 18.

[0030] A storage box 26 is magnetically fixed on the surface of the substrate 1, and the storage box 26 is located below and to the right of the continuous cutting mechanism 3. By setting the storage box 26, the storage box 26 can be used to collect the cut biodegradable plastic bags after cutting. By setting a magnetic box, the cut biodegradable plastic bags can be conveniently collected.

[0031] Working principle: When the cutting device for producing degradable plastic bags is in use, the conveying mechanism 2 is first used to transport the plastic bag to between the first pressing roller 7 and the second pressing roller 11, and then the hydraulic push rod 6 is contracted to drive the second pressing roller 11 to move downward. When the plastic bag passes through the middle of the first pressing roller 7 and the second pressing roller 11, the hydraulic push rod 6 is controlled to extend. At this time, the flattening mechanism 9 is used to support the strip pressing plate 15 through the first telescopic rod 13, and the strip pressing plate 15 is pushed by the first spring 14, so that the strip pressing plate 15 can press the surface of the plastic bag. When cutting the degradable plastic bag, the first servo motor 8 is used to drive the first pressing roller 7 to rotate, so that multiple strip pressing plates 15 can rotate around the first pressing roller 7, and the strip pressing plates 15 and the second pressing roller 11 cooperate with each other to flatten the plastic bag. The cutting trigger mechanism 12 is provided to start the contact switch 22 when the cutting assembly 10 is rotated to face vertically downward. The pneumatic telescopic rod 17 can be turned on by the contact switch 22. The pneumatic telescopic rod 17 is extended to drive the cutter 18 to extend from the knife groove 16, thereby realizing the cutting operation of the plastic bag. After the cutting is completed, as the first pressing roller 7 continues to rotate, the pressing block 21 will separate from the contact switch 22. At this time, the contact switch 22 will re-control the pneumatic telescopic rod 17 to retract, thereby causing the cutter 18 to retract into the knife groove 16. The cut plastic bag will fall into the storage box 26, thereby realizing the collection of the degradable plastic bag. During the cutting process of the plastic bag, the conveying mechanism 2 and the first pressing roller 7 can continue to operate, thereby greatly improving the efficiency of cutting the plastic bag.

[0032] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A cutting device for producing degradable plastic bags, comprising a base plate (1), characterized in that: The surface of the substrate (1) is respectively fixedly connected with a conveying mechanism (2) and a continuous cutting mechanism (3), and the conveying mechanism (2) is arranged on the left side of the continuous cutting mechanism (3); The continuous cutting mechanism (3) comprises a first support plate (4), a second support plate (5) and two hydraulic push rods (6); the first support plate (4) and the second support plate (5) are rotatably connected to the inner sides of a first pressing roller (7); the second support plate (5) is fixedly connected to the outer side of a first servo motor (8); the rotating end of the first servo motor (8) is fixedly connected to the end of the first pressing roller (7); the outer surface of the first pressing roller (7) is provided with a plurality of flattening mechanisms (9) in an annular array; a cutting assembly (10) is provided inside the first pressing roller (7); the upper ends of the two hydraulic push rods (6) are fixedly connected to end blocks; the opposite surfaces of the two end blocks are rotatably connected to a second pressing roller (11); and the upper end of the first support plate (4) is provided with a cutting trigger mechanism (12).

2. A cutting device for producing degradable plastic bags according to claim 1, characterized in that: The flattening mechanism (9) comprises a plurality of first telescopic rods (13), a plurality of first springs (14) and a strip pressure plate (15); the plurality of first telescopic rods (13) are fixedly connected to the surface of the first pressing roller (7); the strip pressure plate (15) is fixedly connected to the end of the first telescopic rod (13); and the first spring (14) is sleeved on the outside of the first telescopic rod (13).

3. A cutting device for producing degradable plastic bags according to claim 2, characterized in that: The surface of the first pressing roller (7) is provided with a knife groove (16) located between the two flattening mechanisms (9); the cutting assembly (10) comprises a pneumatic telescopic rod (17) and a cutter (18); a cavity is provided inside the first pressing roller (7); the pneumatic telescopic rod (17) is fixedly connected to the inner wall of the cavity; the cutter (18) is fixedly connected to the lower end of the pneumatic telescopic rod (17); and the cutter (18) is slidably connected to the knife groove (16).

4. A cutting device for producing degradable plastic bags according to claim 3, characterized in that: The cutting trigger mechanism (12) comprises a second telescopic rod (19), a second spring (20), a pressing block (21) and a contact switch (22); the second telescopic rod (19) is fixedly connected to the upper end of the first support plate (4); the second spring (20) is sleeved on the outer side of the second telescopic rod (19); the pressing block (21) is fixedly connected to an end of the second telescopic rod (19) away from the first support plate (4); the contact switch (22) is fixedly connected to the side of the first pressing roller (7); the contact switch (22) and the pressing block (21) correspond to each other, and the contact switch (22) is electrically connected to the pneumatic telescopic rod (17).

5. A cutting device for producing degradable plastic bags according to claim 1, characterized in that: The rotating end of the first pressing roller (7) is fixedly connected to a first gear (23), the rotating end of the second pressing roller (11) is fixedly connected to a second gear (24), and the first gear (23) and the second gear (24) are meshed with each other, and a sink groove (25) is provided on the surface of the second pressing roller (11).

6. A cutting device for producing degradable plastic bags according to claim 5, characterized in that: The first gear (23) and the second gear (24) have the same shape.

7. A cutting device for producing degradable plastic bags according to claim 1, characterized in that: A storage box (26) is magnetically fixed on the surface of the base plate (1), and the storage box (26) is located to the right of the lower side of the continuous cutting mechanism (3).

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