Waste plastic bottle label removing device

By designing a plastic bottle label removal device with an arc-shaped filter plate and a rotating rubbing roller, combined with impregnation liquid treatment, the problem of label adhesion in existing devices has been solved, achieving efficient separation of labels from bottles and improving recycling efficiency.

CN224060217UActive Publication Date: 2026-03-31XINXIANG ZHONGXIN PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing plastic bottle label removal devices are not very effective at removing labels from waste plastic bottles, and paper labels still tend to stick to the bottles, affecting recycling efficiency.

Method used

A label removal device comprising an arc-shaped filter plate, a rotating shaft, and a rubbing roller was designed. By cooperating with the filter plate and using an impregnation solution, the label can be quickly separated from plastic bottle fragments.

Benefits of technology

This improved the quality and efficiency of label removal from plastic bottles, ensuring rapid separation of paper labels from plastic bottle fragments and enhancing the effectiveness of recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic bottle recycling, and discloses a waste plastic bottle label removing device which comprises a label removing box, a filtering plate of an arc-shaped structure is installed in the label removing box, a plurality of filtering holes are formed in the filtering plate, a rotating shaft is rotatably installed on one side of the inner wall of the label removing box, and rotating frames are fixedly installed at the two ends of the rotating shaft. A rubbing roller is rotationally installed between the bottoms of the rotating frames, a plurality of rubbing blocks are arranged on the rubbing roller, and a label removing mechanism used for driving the rubbing roller to move is arranged on the other side of the inner wall of the label removing box. The waste plastic bottle label removing device is reasonable in structure and novel in design, the rubbing roller can rub plastic bottle fragments on the filter plate through mutual matching between the filter plate and the power mechanism, so that paper labels are rapidly separated from the plastic bottle fragments, and the label removing quality and the label removing efficiency of waste plastic bottles are greatly ensured.
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Description

Technical Field

[0001] This utility model relates to the field of plastic bottle recycling technology, specifically to a label removal device for waste plastic bottles. Background Technology

[0002] Plastic bottles are a common type of plastic product in daily life. They are generally used to hold liquids, and once the liquid is used up, the plastic bottles are discarded. Plastic bottles are recyclable, and proper recycling can reduce pollution.

[0003] After recycling waste plastic bottles, the paper labels attached to their outer walls need to be removed. In the traditional process, the plastic bottles can be crushed first and then the labels can be removed, or the labels can be removed first and then crushed. The order of label removal and crushing can be adjusted according to actual needs to maximize production efficiency and the amount of waste plastic bottles processed.

[0004] However, current plastic bottle label removal devices are not very effective at removing labels from discarded plastic bottles; after removal, paper labels may still remain attached to the plastic bottle. Therefore, further improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a label removal device for waste plastic bottles to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A label removal device for waste plastic bottles includes a label removal box, an arc-shaped filter plate with multiple filter holes installed inside the label removal box, a rotating shaft rotatably mounted on one side of the inner wall of the label removal box, rotating frames fixedly mounted at both ends of the rotating shaft, a rubbing roller rotatably mounted between the bottom of the rotating frames, and multiple rubbing blocks mounted on the rubbing roller, and a label removal mechanism for driving the rubbing roller to move is provided on the other side of the inner wall of the label removal box.

[0008] As an improvement of this utility model, support legs are fixedly installed at the four corners of the bottom of the label removal box.

[0009] As an improvement of this utility model, a sewage pipe is connected to the bottom of the label removal box.

[0010] As an improvement of this utility model: the label removal mechanism includes a horizontal frame that is horizontally slidably installed inside the label removal box. Multiple straight racks are fixedly installed at the bottom of the horizontal frame. The straight racks mesh with a rotating gear fixed on a rotating shaft. The label removal mechanism also includes a limiting component for limiting the movement of the horizontal frame and a power component for driving the rotating shaft to rotate.

[0011] As an improvement of this utility model: the limiting component includes limiting blocks fixed at both ends of the horizontal frame, and a limiting spring is installed on the outside of the horizontal frame between the limiting blocks and the side wall of the label removal box.

[0012] As an improvement of this utility model: the power assembly includes a power shaft rotatably mounted on the side wall of the label removal box, a power arm connected to the output end of the power shaft, a power frame mounted on the power arm through a sliding part, the power frame being fixed on a horizontal frame, and a power motor also mounted on the side wall of the label removal box, the output end of the power motor being connected to the power shaft.

[0013] As an improvement of this utility model: the sliding part includes a sliding column fixed on the power arm, and the sliding column is slidably disposed inside the sliding groove located on the power frame.

[0014] As an improvement of this utility model: the bottom of the label removal box is filled with impregnation liquid, and the filter plate is immersed in the impregnation liquid.

[0015] As an improvement of this utility model: a limiting frame is fixedly installed between the side walls of the label removal box, and the rotating shaft is rotatably installed on the limiting frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The aforementioned label removal device for waste plastic bottles has a reasonable structure and novel design. Through the cooperation between the filter plate and the power mechanism, the rubbing roller can rub the plastic bottle fragments located on the filter plate, thereby quickly separating the paper label from the plastic bottle fragments, greatly ensuring the label removal quality and efficiency of waste plastic bottles. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the kneading roller in this utility model;

[0022] Figure 5 This is a partial structural diagram of the label removal mechanism in this utility model.

[0023] In the diagram: 1. Label removal box; 2. Support leg; 3. Filter plate; 4. Filter hole; 5. Limiting frame; 6. Rotating shaft; 7. Horizontal frame; 8. Straight rack; 9. Rotating gear; 10. Limiting spring; 11. Limiting block; 12. Power motor; 13. Power frame; 14. Drain pipe; 15. Kneading roller; 16. Rotating frame; 17. Kneading block; 18. Power arm; 19. Power shaft; 20. Sliding column. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Example 1: See Figures 1-5In this embodiment of the present invention, a label removal device for waste plastic bottles includes a label removal box 1. An arc-shaped filter plate 3 is installed inside the label removal box 1. The filter plate 3 is provided with multiple filter holes 4, thereby realizing the sedimentation separation of the label paper inside the label removal box 1. A rotating shaft 6 is rotatably installed on one side of the inner wall of the label removal box 1. A rotating frame 16 is fixedly installed at both ends of the rotating shaft 6. A rubbing roller 15 is rotatably installed between the bottoms of the rotating frame 16. Multiple rubbing blocks 17 are provided on the rubbing roller 15. A label removal mechanism for driving the rubbing roller 15 is provided on the other side of the inner wall of the label removal box 1.

[0029] In order to achieve the support and limiting of the entire label removal device, in this embodiment, support legs 2 are fixedly installed at the four corners of the bottom of the label removal box 1.

[0030] In addition, in order to effectively discharge the waste labels, a drain pipe 14 is connected to the bottom of the label removal box 1, and a drain valve can be detachably installed at the end of the drain pipe 14.

[0031] In one embodiment, the label removal mechanism includes a horizontal frame 7 that is horizontally slidably installed inside the label removal box 1. A plurality of racks 8 are fixedly installed at the bottom of the horizontal frame 7. The racks 8 mesh with a rotating gear 9 fixed on the rotating shaft 6. The label removal mechanism also includes a limiting component for limiting the movement of the horizontal frame 7 and a power component for driving the rotating shaft 6 to rotate.

[0032] The limiting component includes limiting blocks 11 fixed at both ends of the horizontal frame 7, and limiting springs 10 are installed on the outer side of the horizontal frame 7 between the limiting blocks 11 and the side wall of the label removal box 1. Through the cooperation between the limiting springs 10 and the limiting blocks 11, the entire horizontal frame 7 will not wobble significantly during horizontal reciprocating motion, further ensuring the reliability of the label removal mechanism.

[0033] In addition, in this embodiment, the power assembly includes a power shaft 19 rotatably mounted on the side wall of the label removal box 1, a power arm 18 connected to the output end of the power shaft 19, a power frame 13 mounted on the power arm 18 via a sliding part, the power frame 13 being fixed on the horizontal frame 7, and a power motor 12 also mounted on the side wall of the label removal box 1, the output end of the power motor 12 being connected to the power shaft 19.

[0034] The sliding part includes a sliding column 20 fixed on the power arm 18, and the sliding column 20 is slidably disposed inside the sliding groove located on the power frame 13.

[0035] The power motor 12 is started, and then the power arm 18 is driven to rotate synchronously under the action of the power shaft 19. Then, the sliding action of the sliding column 20 inside the power frame 13 causes the power frame 13 to drive the horizontal frame 7 to move horizontally back and forth under the action of the limiting component. Then, under the mutual meshing action of the rack 8 and the rotating gear 9, the entire rotating shaft 6 rotates clockwise and counterclockwise periodically. Then, with the cooperation of the rotating frame 16, the entire rubbing roller 15 repeatedly rubs the plastic bottle fragments placed on the filter plate 3, thereby accelerating the rapid separation of the paper label and the plastic bottle fragments.

[0036] Furthermore, to further accelerate the separation of paper labels from plastic bottles, in this embodiment, the bottom of the label removal box 1 is filled with an impregnation solution, and the filter plate 3 is immersed in the impregnation solution. The impregnation solution can be a common sodium hydroxide aqueous solution. Soaking the waste plastic bottle fragments in the impregnation solution softens the paper labels, thereby accelerating the separation of the paper labels from the plastic bottle fragments, which eventually absorb water and settle at the bottom of the label removal box 1.

[0037] Example 2: In another embodiment of this utility model, the difference from the above embodiment is that a limiting frame 5 is fixedly installed between the side walls of the label removal box 1, and the rotating shaft 6 is rotatably mounted on the limiting frame 5. By setting the limiting frame 5, the axial rotation limit of the rotating shaft 6 during rotation is further ensured, and the reliability of the entire label removal device is further ensured.

[0038] In summary: First, the label removal chamber 1 is filled with impregnation solution, completely submerging the entire filter plate 3. Simultaneously, the previously pulverized plastic bottle fragments are placed on the filter plate 3. Then, the power motor 12 is activated. Under the action of the label removal mechanism, the label and plastic bottle fragments are quickly separated. The separated label settles at the bottom of the label removal chamber 1, while the plastic bottle fragments remain above the filter plate 3. The entire label removal process is quick and convenient, and is worthy of widespread use.

[0039] 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 within the protection scope of the present utility model.

Claims

1. A device for de-labeling of waste plastic bottles, comprising a de-labeling tank (1), characterized in that: The filter plate (3) with arc structure is internally arranged in the stripping box (1), a plurality of filter holes (4) are arranged on the filter plate (3), the rotating shaft (6) is rotatably arranged on one side of the inner wall of the stripping box (1), the rotating shaft (6) is fixedly arranged on both ends of the rotating frame (16), the rubbing roller (15) is rotatably arranged between the bottom of the rotating frame (16), a plurality of rubbing blocks (17) are arranged on the rubbing roller (15), and the stripping mechanism for driving the rubbing roller (15) to move is arranged on the other side of the inner wall of the stripping box (1).

2. A device for de-labeling waste plastic bottles according to claim 1, characterized in that, The supporting legs (2) are fixedly arranged at the four corner positions of the bottom of the stripping box (1).

3. A device for de-labeling waste plastic bottles as claimed in claim 1, wherein, The dirt discharge pipe (14) is communicatively arranged at the bottom of the stripping box (1).

4. A device for de-labeling waste plastic bottles as claimed in claim 1, wherein, The stripping mechanism comprises the horizontal frame (7) horizontally and slidably arranged in the stripping box (1), a plurality of straight racks (8) are fixedly arranged at the bottom of the horizontal frame (7), the straight racks (8) are meshed with the rotating gear (9) fixed on the rotating shaft (6), the stripping mechanism further comprises a limiting assembly for limiting the movement of the horizontal frame (7) and a power assembly for driving the rotating shaft (6) to rotate.

5. A device for de-labeling waste plastic bottles according to claim 4, characterized in that, The limiting assembly comprises the limiting blocks (11) fixed on both ends of the horizontal frame (7), and the limiting springs (10) are arranged outside the horizontal frame (7) between the limiting blocks (11) and the side walls of the stripping box (1).

6. A device for de-labeling waste plastic bottles according to claim 5, characterized in that, The power assembly comprises the power shaft (19) rotatably arranged on the side wall of the stripping box (1), the power arm (18) is connected to the output end of the power shaft (19), the power frame (13) is arranged on the power arm (18) through a sliding part, the power frame (13) is fixed on the horizontal frame (7), the power motor (12) is further arranged on the side wall of the stripping box (1), and the output end of the power motor (12) is connected to the power shaft (19).

7. A device for de-labeling waste plastic bottles according to claim 6, characterized in that, The sliding part comprises the sliding column (20) fixed on the power arm (18), and the sliding column (20) is slidably arranged in the sliding groove on the power frame (13).

8. A device for de-labeling waste plastic bottles according to claim 1, characterized in that, The stripping box (1) is filled with the immersion liquid on the bottom side, and the filter plate (3) is immersed in the immersion liquid.

9. A device for de-labeling waste plastic bottles according to claim 1, characterized in that, The limiting frame (5) is fixedly arranged between the side walls of the stripping box (1), and the rotating shaft (6) is rotatably arranged on the limiting frame (5).