A label stripping machine

Abstract

The application discloses a label removing machine, which comprises a base, a feeding seat and a supporting seat arranged on the base, an outer cylinder arranged between the feeding seat and the supporting seat, a rotating cylinder arranged in the outer cylinder, a moving cutter arranged on the outer wall of the rotating cylinder, a supporting frame of the outer cylinder, a plurality of fixed cutter plates detachably connected in the circumferential direction of the supporting frame, and a plurality of fixed cutter components detachably connected on the fixed cutter plates. In the application, the outer cylinder adopts a modular design idea, one fixed cutter plate and the fixed cutter components connected thereon form a module, when the fixed cutter components need to be replaced, the whole module is directly replaced, and the fixed cutter components do not need to be replaced one by one, so that the replacement efficiency is greatly improved, the time required for replacement is reduced, and the replacement is relatively convenient.

Description

Technical Field

[0001] This invention relates to a machine for plastic recycling, and more particularly to a label removal machine. Background Technology

[0002] Currently, there are many types of plastic bottles, such as mineral water bottles, beverage bottles, tea bottles, and milk bottles. These plastic bottles usually have labels on their exteriors, which are often made of plastic film. When recycling these plastic bottles, the labels need to be removed first, and then the bottles need to be washed, crushed, and processed to produce recycled plastic raw materials.

[0003] The function of a label remover is to remove labels from plastic bottles. Existing label removers include a base, a feeding seat, and a support base. An outer cylinder is located between the feeding seat and the support base, and a rotating drum is located inside the outer cylinder. The rotating drum is connected to a motor and driven by the motor, allowing it to rotate within the outer cylinder. An annular space is formed between the outer and inner cylinders. Moving blades are located on the outer wall of the inner cylinder, while fixed blades are located on the inner wall of the outer cylinder. There are numerous fixed blades distributed throughout the inner wall of the outer cylinder. When the rotating drum rotates, the moving blades on the drum also rotate, creating relative motion with the fixed blades on the inner wall of the outer cylinder. The feeding seat has a feeding port and a feeding chamber, which is connected to the annular space between the outer and inner cylinders. When processing plastic bottles, the bottles are placed in through the feeding port on the feeding seat and enter the annular space between the outer and inner cylinders through the feeding chamber. Under the action of the fixed and moving blades, the labels on the plastic bottles are torn off, thus achieving the function of label removal.

[0004] Traditional label removal machines experience wear on the fixed blade components after a period of use, requiring replacement. However, due to the large number of fixed blade components, replacing them one by one is troublesome and time-consuming. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that replacing the fixed blade components in existing label removal machines is troublesome and time-consuming due to the large number of fixed blade components. This invention provides a label removal machine that can effectively solve the above problems and has the characteristics of long service life and low recycling loss during use.

[0006] The objective of this invention is achieved through the following technical solution: a label removal machine, comprising a base, a feeding seat and a support seat on the base, an outer cylinder between the feeding seat and the support seat, a rotating cylinder inside the outer cylinder, a moving knife component on the outer wall of the rotating cylinder, the outer cylinder including a support frame, a plurality of fixed knife plates detachably connected to the support frame in the circumferential direction, and a plurality of fixed knife components detachably connected to the fixed knife plates.

[0007] In this invention, the outer cylinder adopts a modular design. A fixed blade plate and the fixed blade components connected to it form a module. When the fixed blade components need to be replaced, the entire module is replaced directly, eliminating the need to replace each fixed blade component individually. This greatly improves replacement efficiency, reduces replacement time, and makes replacement more convenient. In actual use, since the rotating drum of the label-removing machine rotates in one direction, it utilizes only one side of the fixed blade component for operation. The fixed blade component often experiences wear on one side, with one side showing more severe wear while the other side shows almost no wear. To improve the service life of the fixed blade components and reduce their replacement frequency, this invention allows the fixed blade plate to be rotated 180 degrees horizontally when one side of the fixed blade component experiences severe wear, allowing the less worn side of the fixed blade component to continue operating. This effectively improves the service life of the fixed blade components and reduces their replacement frequency. The modular design of this invention greatly facilitates the above operations.

[0008] Preferably, the support frame includes two end plates, with several parallel crossbeams arranged between the two end plates. A fixed blade plate is connected between two adjacent crossbeams, and a fixing mechanism for fixing the fixed blade plate is connected to the crossbeams. The two ends of the fixed blade plate are respectively connected to two adjacent crossbeams and fixed by the fixing mechanism.

[0009] Preferably, connecting flanges are provided on both sides of the crossbeam, and one end of the fixed blade plate abuts against the connecting flanges. The fixing mechanism includes a pressure strip and a first bolt for connecting the pressure strip to the crossbeam. The pressure strip has a U-shaped cross-section and a through hole for the first bolt to pass through. The crossbeam has a threaded hole for connecting the first bolt. The first bolt passes through the through hole in the pressure strip and connects with the threaded hole in the crossbeam. The pressure strip presses one end of the fixed blade plate tightly against the connecting flanges. This mechanism facilitates the installation and removal of the fixed blade plate.

[0010] Preferably, the pressure strip is provided with a second removal handle. By providing a second removal handle on the pressure strip, the removal and installation of the pressure strip are facilitated.

[0011] Preferably, a material-dispensing strip is provided on the outer wall of the rotating drum. The material-dispensing strip has a triangular cross-section and is arranged along the axial direction of the rotating drum; the material-dispensing strip can agitate the plastic bottle and reduce the occurrence of material blockage.

[0012] Preferably, the feed seat is provided with a feed chamber and a feed inlet connected to the feed chamber, and a wear-resistant plate is detachably connected to the inner wall of the feed chamber. The wear-resistant plate covers the inner wall of the feed chamber and is detachably connected to the inner wall of the feed chamber for easy replacement.

[0013] Preferably, the wear-resistant plate is connected to the inner wall of the feed chamber by a second bolt.

[0014] Preferably, the fixed blade component includes a fixed blade and a nut. The fixed blade includes a main body, a positioning boss on one side of the main body, and a blade head on the other side of the main body. A stud is provided on the positioning boss, and a positioning groove is provided on the fixed blade plate to mate with the positioning boss. The positioning boss is connected in the positioning groove. The main body is located on one side of the fixed blade plate, and the nut is connected to the stud on the other side of the fixed blade plate. The main body is disc-shaped, and the side of the main body near the blade head is spherical or near-spherical. The cross-section of both the positioning boss 22 and the positioning groove 17 is square. A washer is also provided between the nut and the fixed blade plate. The function of the nut is to fix the fixed blade on the fixed blade plate. During operation, the blade head contacts the label on the outside of the plastic bottle and tears the label, thereby detaching the label from the bottle. The fixed blade is conveniently installed and removed by mating with the nut and connecting to the fixed blade plate. When one side of the cutter head on the fixed cutter is worn, the angle of the fixed cutter can be adjusted so that the worn side of the cutter head rotates to another angle, allowing the unworn part of the head to continue working. This greatly improves the service life of the fixed cutter, reduces the frequency of its replacement, and saves on replacement costs. Since the fixed cutter engages with the positioning slot on the fixed cutter plate through a positioning boss, and both the positioning boss and the positioning slot have square cross-sections, the minimum adjustment angle of the fixed cutter is 90 degrees. In traditional label removers, the positioning component is a label remover bolt, which is directly connected to the outer cylinder. The front end of the bolt extends a certain distance into the outer cylinder. This structure causes a strong impact between the plastic bottle and the bolt during label removal, easily tearing parts of the bottle and generating small plastic fragments that fall off, resulting in recycling losses. This invention optimizes the structure of the fixed blade. The main body of the fixed blade is disc-shaped, and the side near the blade head is spherical or near-spherical. This reduces the tearing effect of the fixed blade on the plastic bottle, making it less likely to tear the bottle and thus reducing fragmentation and recycling losses.

[0015] Preferably, the cutting head has a cuboid structure.

[0016] Preferably, the fixed blade plate is provided with a first disassembly handle. By providing a first disassembly handle on the fixed blade plate, the disassembly and assembly of the fixed blade plate are facilitated.

[0017] The beneficial effects of this invention are as follows: In this invention, the outer cylinder adopts a modular design concept, with a fixed blade plate and the fixed blade components connected to it forming a module. When the fixed blade components need to be replaced, the entire module can be replaced directly, without replacing each fixed blade component individually. This greatly improves the replacement efficiency, reduces the time required for replacement, and makes replacement more convenient. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a front view of the present invention.

[0020] Figure 3 This is a schematic diagram of the feed seat.

[0021] Figure 4 for Figure 2 A cross-sectional view along the AA direction.

[0022] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0023] Figure 6 This is a schematic diagram of the structure of the fixed blade in one direction.

[0024] Figure 7 This is a schematic diagram of the fixed blade plate from another direction.

[0025] Figure 8 This is a schematic diagram of the fixed tool structure.

[0026] In the diagram: 1. Base, 2. Feed seat, 3. Motor, 4. End plate, 5. Crossbeam, 6. Fixed blade plate, 7. First disassembly handle, 8. Pressure strip, 9. First bolt, 10. Second disassembly handle, 11. Rotary drum, 12. Moving blade component, 13. Feed port, 14. Wear-resistant plate, 15. Second bolt, 16. Material guide strip, 17. Positioning slot, 18. Fixed blade, 19. Nut, 20. Washer, 21. Main body, 22. Positioning boss, 23. Stud, 24. Blade head, 25. Support base. Detailed Implementation

[0027] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0028] Example 1: like Figures 1 to 8 As shown, a label-removing machine includes a base 1, on which a support seat 25 and a feeding seat 2 are mounted. An outer cylinder is disposed between the feeding seat 2 and the support seat 25, and a rotating drum 11 is disposed inside the outer cylinder. A motor 3 for driving the rotating drum 11 to rotate is disposed on the base 1. An annular space is formed between the outer cylinder and the rotating drum 1. A moving blade component 12 and a material-pushing strip 16 are disposed on the outer wall of the rotating drum 11. The material-pushing strip 16 has a triangular cross-section and is arranged along the axial direction of the rotating drum 11. The feeding seat 2 is provided with a feeding chamber and a feeding port 13 connected to the feeding chamber. A wear-resistant plate 14 is detachably connected to the inner wall of the feeding chamber. The wear-resistant plate 14 is connected to the inner wall of the feeding chamber by a second bolt 15. The wear-resistant plate covers the inner wall of the feeding chamber and is detachably connected to the inner wall of the feeding chamber for easy replacement.

[0029] The outer cylinder includes a support frame, on which several fixed blade plates 6 are detachably connected in the circumferential direction. The fixed blade plates 6 are rectangular plate structures. The support frame includes two end plates 4, with several parallel crossbeams 5 positioned between the two end plates 4. The fixed blade plates 6 are connected between adjacent crossbeams 5, and a fixing mechanism for fixing the fixed blade plates 6 is connected to the crossbeams 5. Connecting flanges are provided on both sides of the crossbeams 5, and one end of the fixed blade plate 6 abuts against the connecting flanges. The fixing mechanism includes a pressure strip 8 and a first bolt 9 for connecting the pressure strip 8 to the crossbeams 5. The pressure strip 8 has a U-shaped cross-section. A through hole is provided on the pressure strip 8 for the first bolt 9 to pass through, and a threaded hole is provided on the crossbeams 5 for connecting the first bolt 9. The first bolt 9 passes through the through hole on the pressure strip 8 and connects to the threaded hole on the crossbeam 5. The pressure strip 8 presses one end of the fixed blade plate 6 tightly against the connecting flange. A second disassembly handle 10 is provided on the pressure strip 8.

[0030] Several fixed-blade components are detachably connected to the fixed-blade plate 6. Each fixed-blade component includes a fixed blade 18 and a nut 19. The fixed blade 18 includes a main body 21, a positioning boss 22 on one side of the main body 21, and a blade head 24 on the other side of the main body 21. The blade head 24 has a cuboid structure. A stud 23 is provided on the positioning boss 22, and a positioning through groove 17 that mates with the positioning boss 22 is provided on the fixed-blade plate 6. The positioning boss 22 is connected in the positioning through groove 17. The main body is located on one side of the fixed blade plate 6, and the nut 19 is connected to the stud 23 on the other side of the fixed blade plate 6. The main body is disc-shaped, and the side of the main body near the blade head is spherical or near-spherical. A washer 20 is also provided between the nut 19 and the fixed blade plate 6. The fixed blade plate 6 is provided with a first disassembly handle 7. The cross-section of both the positioning boss 22 and the positioning through groove 17 is square.

[0031] In this invention, the outer cylinder adopts a modular design. A fixed blade plate and the fixed blade components connected to it form a module. When the fixed blade components need to be replaced, the entire module is replaced directly, eliminating the need to replace each fixed blade component individually. This greatly improves replacement efficiency, reduces replacement time, and makes replacement more convenient. In actual use, since the rotating drum of the label-removing machine rotates in one direction, it utilizes only one side of the fixed blade component for operation. The fixed blade component often experiences wear on one side, with one side showing more severe wear while the other side shows almost no wear. To improve the service life of the fixed blade components and reduce their replacement frequency, this invention allows the fixed blade plate to be rotated 180 degrees horizontally when one side of the fixed blade component experiences severe wear, allowing the less worn side of the fixed blade component to continue operating. This effectively improves the service life of the fixed blade components and reduces their replacement frequency. The modular design of this invention greatly facilitates the above operations.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A label-removing machine, comprising a base, a feeding seat and a support seat disposed on the base, an outer cylinder disposed between the feeding seat and the support seat, a rotating cylinder disposed inside the outer cylinder, and a moving blade component disposed on the outer wall of the rotating cylinder, characterized in that: The outer cylinder includes a support frame, and several fixed blade plates are detachably connected to the support frame in the circumferential direction. Several fixed blade components are detachably connected to the fixed blade plates. The support frame includes two end plates, and several parallel crossbeams are arranged between the two end plates. The fixed blade plate is connected between two adjacent crossbeams, and a fixing mechanism for fixing the fixed blade plate is connected to the crossbeams. The crossbeam has connecting flanges on both sides, and one end of the fixed blade plate abuts against the connecting flanges. The fixing mechanism includes a pressure strip and a first bolt for connecting the pressure strip to the crossbeam. The pressure strip has a U-shaped cross section and a through hole for the first bolt to pass through. The crossbeam has a threaded hole for connecting the first bolt. The first bolt passes through the through hole on the pressure strip and connects with the threaded hole on the crossbeam. The pressure strip presses one end of the fixed blade plate against the connecting flange. The fixed blade component includes a fixed blade and a nut. The fixed blade includes a main body, a positioning boss on one side of the main body, and a blade head on the other side of the main body. A stud is provided on the positioning boss, and a positioning through groove that mates with the positioning boss is provided on the fixed blade plate. The positioning boss is connected in the positioning through groove. The main body is located on one side of the fixed blade plate, and the nut is connected to the stud on the other side of the fixed blade plate. Both the positioning boss and the positioning through groove have square cross-sections.

2. The label-removing machine according to claim 1, characterized in that, The pressure strip is provided with a second disassembly handle.

3. A label-removing machine according to claim 1, characterized in that, The outer wall of the rotating drum is equipped with material-pushing strips.

4. A label-removing machine according to claim 1, 2, or 3, characterized in that, The feeding seat is provided with a feeding chamber and a feeding port connected to the feeding chamber, and a wear-resistant plate is detachably connected to the inner wall of the feeding chamber.

5. A label-removing machine according to claim 4, characterized in that, The wear-resistant plate is connected to the inner wall of the feed chamber by a second bolt.

6. A label-removing machine according to claim 1, characterized in that, The cutting head has a rectangular parallelepiped structure.

7. A label-removing machine according to claim 1, characterized in that, The fixed blade plate is provided with a first disassembly handle.

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