A device for removing plastic labels and caps from recycled glass bottles
By combining high-pressure water jets and hot water immersion or steam heating with a waterjet die holder, plastic labels and caps on glass bottles are automatically removed, solving the problem of poor removal efficiency in existing technologies and improving the efficiency of glass bottle recycling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING JUNYUAN MASCH MFG CO LTD
- Filing Date
- 2023-08-08
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing technology, the box-type immersion label removal and cleaning machine is not effective in removing plastic labels, resulting in low efficiency in the recycling of glass bottles.
The high-pressure water jet from the water jet mold is used to rinse the glass bottle, combined with hot water immersion or steam heating, to automatically remove the plastic label and cap. The bottle body is rinsed with high-pressure water jet from the water jet mold, and then it enters the immersion tank for hot water immersion or steam heating until the plastic label is completely peeled off.
It enables automated and efficient removal of plastic labels and caps from glass bottles, reducing manual labor and significantly improving the efficiency of label and cap removal.
Smart Images

Figure CN117019803B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of glass bottle recycling and processing, and in particular to a device for recycling glass bottles by removing plastic labels and caps. Background Technology
[0002] In order to replace manual cleaning with machinery for removing labels from glass bottles, various label removal and cleaning machines have emerged. Currently, the box-type immersion label removal and cleaning machine, which is commonly used at home and abroad, adopts a process of repeated immersion and spray cleaning, which is not effective in removing plastic labels.
[0003] However, in order to ensure the cleanliness of glass bottle recycling, traditional methods of removing plastic labels are not only inefficient but also have low removal efficiency. Therefore, we propose a device for removing plastic labels and caps from recycled glass bottles to solve the above problems. Summary of the Invention
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.
[0005] In view of the problems existing in the prior art, the present invention is proposed.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for recycling glass bottles and removing plastic labels and caps, characterized in that it includes: a label cutting mechanism disposed on the front side of a conveying device, which includes: a wastewater collection tank, a bottle feeding front guide rail fixedly disposed on the front side of the wastewater collection tank, and a bottle feeding rear guide rail fixedly disposed on the upper side of the wastewater collection tank, wherein a water jet mold seat is fixedly installed on both the upper and lower sides of the bottle feeding rear guide rail, and a high-pressure water flow interface is provided on the water jet mold seat, and an opening groove is opened on the bottom side of the bottle feeding rear guide rail;
[0007] The water jet nozzles of the upper and lower water jet mold bases are parallel to the guide rail after the bottle is fed. An installation plate is also fixedly connected to the wastewater collection tank, and a first clamping assembly is provided on the installation plate.
[0008] As a preferred embodiment of the device for recycling glass bottles and removing plastic labels and caps according to the present invention, wherein: limiting horizontal plates are symmetrically fixedly connected on the bottle feeding guide rail, and the width between the two limiting horizontal plates is equal to the width of the glass bottle body.
[0009] As a preferred embodiment of the device for recycling glass bottles and removing plastic labels and caps according to the present invention, an L-shaped limiting frame is fixedly connected to the limiting horizontal plate, and a brush roller for quickly laying down the glass bottle is also provided on one side of the bottle feeding guide rail.
[0010] As a preferred embodiment of the device for recycling glass bottles and removing plastic labels and caps according to the present invention, the first clamping and conveying assembly includes track wheels symmetrically rotated on the mounting plate and clamping tracks on the track wheels on both sides. The clamping tracks on both sides are used to clamp and convey the bottle body after it has been laid down. The track wheels are driven by a motor.
[0011] As a preferred embodiment of the glass bottle recycling label and cap removal device of the present invention, the two sides of the bottle feeding guide rail are symmetrically fixedly connected with triangular platforms, and a pushing component is provided on the triangular platforms. The pushing component includes three transmission wheels distributed in a triangle, and a clamping conveyor belt is provided between the three transmission wheels.
[0012] As a preferred embodiment of the device for recycling glass bottles by removing plastic labels and caps according to the present invention, the device further includes a heating mechanism, which comprises a first conveyor and a soaking tank, wherein the soaking tank is filled with hot water.
[0013] As a preferred embodiment of the device for recycling glass bottles and removing plastic labels and caps according to the present invention, the device further includes: a first spray seat is provided on the front side of the first conveyor frame, and a plurality of first spray heads are provided on the first spray seat; a second spray seat is provided on the rear side of the first conveyor frame, and a plurality of second spray heads are provided on the second spray seat.
[0014] As a preferred embodiment of the device for recycling glass bottles and removing plastic labels and caps according to the present invention, the device further includes a heating mechanism, which includes a steam device and a horizontal conveyor. The second conveyor transports the bottle body through the inside of the steam device, with one end aligned with the bottle feeding guide rail and the other end connected to the subsequent production line via an arc track. A waste label collection box is provided below the arc track.
[0015] The beneficial effects of this invention are as follows: This invention allows the bottle to be washed by the high-pressure water jet of the water jet mold base while lying down, so as to remove the plastic label and cap of the bottle. Then, it enters the soaking tank for hot water soaking or steam heating until the plastic label is completely peeled off. The whole process is automated, which greatly reduces manual labor and greatly improves the efficiency of label and cap removal. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0017] Figure 1This is a front structural schematic diagram of a first embodiment of a device for removing plastic labels and caps from recycled glass bottles proposed in this invention;
[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the de-standard unit;
[0019] Figure 3 This is a schematic diagram of a second embodiment of the device for removing plastic labels and caps from recycled glass bottles proposed in this invention;
[0020] Figure 4 This is a front structural schematic diagram of Embodiment 3 of the equipment for recycling glass bottles and removing plastic labels and caps proposed in this invention;
[0021] Figure 5 for Figure 4 A top view of the steam equipment and the second conveyor section.
[0022] In the diagram: 100 - Label removal unit, 101 - Wastewater collection tank, 102 - Mounting plate, 103 - Bottle feeding rear guide rail, 104 - Water jet mold base, 105 - Track wheel, 106 - Clamping track, 107 - Triangular platform, 108 - Pushing assembly, 108a - Transmission wheel, 108b - Clamping conveyor belt, 109 - Brushing roller, 110 - L-shaped limit frame, 111 - Limiting horizontal plate, 112 - Bottle feeding front guide rail, 200 - Heating mechanism, 201 - First conveyor, 202 - Soaking tank, 203 - First spray seat, 204 - First spray head, 205 - Second spray seat, 206 - Second spray head, 207 - Steam equipment, 208 - Waste label collection box, 209 - Arc track, 210 - Second conveyor. Detailed Implementation
[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.
[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.
[0026] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.
[0027] Example 1
[0028] Reference Figure 1 - Figure 2 According to one embodiment of the present invention, a device for recycling glass bottles and removing plastic labels and caps is provided. The device includes a label cutting mechanism 100, comprising: a wastewater collection tank 101, a front guide rail 112 fixedly disposed on the front side of the wastewater collection tank 101, and a rear guide rail 103 fixedly disposed on the upper side of the wastewater collection tank 101. Water jet mold seats 104 are fixedly installed on both the upper and lower sides of the rear guide rail 103. The water spray nozzles of the upper and lower water jet mold seats 104 are parallel to the rear guide rail 103. The water jet mold seats 104 are provided with high-pressure water flow interfaces, and high-pressure water flow is delivered to them by a high-pressure pump. Limiting horizontal plates 111 are symmetrically fixedly connected to the front guide rail 112, and the width between the two limiting horizontal plates 111 is equal to the width of the glass bottle body to prevent the glass bottle from deviating during transportation. An installation plate 102 is also fixedly connected to the wastewater collection tank 101, and a first clamping component is provided on the installation plate 102.
[0029] The first clamping assembly mentioned above includes track wheels 105 symmetrically rotated on the mounting plate 102 and clamping tracks 106 disposed on the track wheels 105 on both sides. The clamping tracks 106 on both sides are used to clamp and transport the bottle body after it is laid down. The track wheels 105 are also driven by a motor. The track wheels 105 drive the clamping tracks 106 to rotate, thereby passing the glass bottle through the water spray nozzle between the upper and lower water jet mold seats 104. Under the action of high pressure water flow, the plastic label is "cut" open from top to bottom, and the front plastic cap is washed away by the water flow.
[0030] In addition, an L-shaped limiting frame 110 is fixedly connected to the limiting horizontal plate 111, and a brush roller 109 for quickly laying down the glass bottle is also provided on one side of the bottle feeding front guide rail 112. When the bottle mouth contacts the L-shaped limiting frame 110, the brush roller 109 can quickly lay down on the bottle feeding front guide rail 112 under rapid rotation, so that it can enter the bottle feeding rear guide rail 103 in a lying position.
[0031] To prevent the high-pressure water flow from impacting the bottle and causing it to fail to push forward, triangular platforms 107 are symmetrically fixed to both sides of the bottle feeding guide rail 112. A pushing component 108 is provided on the triangular platform 107. The pushing component 108 includes three transmission wheels arranged in a triangle. The three transmission wheels are driven by a motor and are connected by a clamping conveyor belt. The belt is used to clamp the glass bottle after it has been laid down and push it towards the inside of the bottle feeding guide rail 103. This further counteracts the impact force brought by the water jet mold base 104 when it impacts the bottle. It is worth noting that the bottle feeding guide rail 103 is provided with an opening slot, which allows the water flow from the lower water jet mold base 104 to pass through while the plastic label and cap fall into the wastewater collection tank 101 with the water flow.
[0032] Example 2
[0033] Reference Figure 3 The difference from Embodiment 1 is that the device further includes: a first conveyor 201 and an immersion tank 202. The immersion tank 202 is filled with hot water. The first conveyor 201 is used to push the glass bottles pushed out from the post-conveyor guide rail 103 to the third first conveyor (201) 301 after immersion. After being rinsed by high-pressure water flow, some plastic labels will still be attached to the bottle body. After being immersed in hot water, thermal expansion occurs, causing them to quickly detach from the bottle body and float on the immersion tank 202.
[0034] A first spray seat 203 is provided on the front side of the frame of the first conveyor 201, and a plurality of first spray heads 204 are provided on the first spray seat 203. A second spray seat 205 is provided on the rear side of the frame of the first conveyor 201, and a plurality of second spray heads 206 are provided on the second spray seat 205. The rest of the structure is the same as in Embodiment 1.
[0035] This invention allows the glass bottle to enter the pre-feeding guide rail 112. When it passes the brush roller 109 and the L-shaped limiting frame 110, the bottle mouth is intercepted by the L-shaped limiting frame 110. The bottle body is laid down by the rotation of the brush roller 109 and then enters between the two side pushing components 108. As the pushing components 108 rotate, the glass bottle continues to be pushed forward until it is sent into the post-feeding guide rail 103. Then, as the two side clamping conveyor belts 106 rotate, the glass bottle passes between the upper and lower water jet mold seats 104. After being impacted by high-pressure water flow, the plastic label on the bottle body is simultaneously "cut off" on the upper and lower sides, and the cap on the bottle body is washed away. Here, the cap is a plastic cap that is tightly inserted on a regular glass bottle, not a screw-on cap. After the label is removed, the glass bottle enters the soaking tank 202 again with the first conveyor 201 and is soaked in hot water, causing the plastic label that has not completely fallen off the surface to expand and fall off quickly.
[0036] In summary, this invention removes the plastic label and cap from the bottle by allowing it to be washed by a high-pressure water jet from the water jet mold base 104 while it is lying down. Then, it is immersed in hot water in the soaking tank 202 until the plastic label is completely peeled off. The whole process is automated, which greatly reduces manual labor and significantly improves the efficiency of label and cap removal.
[0037] Example 3
[0038] Reference Figure 4 - Figure 5 The difference from Embodiment 1 is that the heating mechanism also includes a steam device 207 and a second conveyor 210. The second conveyor 210 conveys the bottle body through the inside of the steam device 207, with one end aligned with the bottle feeding guide rail 103 and the other end aligned with the subsequent production line via the arc track 209. A waste label collection box 216 is provided below the arc track 209.
[0039] Specifically, when the label on the bottle surface, after being washed by the high-pressure water jet from the water jet die holder 104, has not been completely peeled off, in addition to soaking in hot water, it can also be heated by steam. That is, after the bottle enters the second conveyor 210, it is sent to the steam equipment 207. By generating steam, the plastic label is heated and expanded, causing it to peel off from the bottle. Then, guided by the arc track 209, the bottle smoothly enters the subsequent production line. The peeled label is misaligned with the conveying direction of the bottle and falls into the waste label collection box 208 at the end of the second conveyor 210. The rest of the structure is the same as in Embodiment 2.
[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A device for recycling glass bottles and removing plastic labels and caps, characterized in that, include: The label cutting mechanism (100) located in front of the conveying equipment includes: a wastewater collection tank (101), a bottle feeding front guide rail (112) fixedly installed in front of the wastewater collection tank (101), and a bottle feeding rear guide rail (103) fixedly installed on the upper side of the wastewater collection tank (101). Water jet mold seats (104) are fixedly installed on both the upper and lower sides of the bottle feeding rear guide rail (103), and a high-pressure water flow interface is provided on the water jet mold seat (104). An opening groove is opened on the bottom side of the bottle feeding rear guide rail (103). Under the action of high-pressure water flow, the plastic label is cut open from top to bottom, and the front plastic cap is washed away by the water flow. The water jet nozzles of the upper and lower water jet mold bases (104) are parallel to the bottle feeding guide rail (103). The wastewater collection tank (101) is also fixedly connected to an installation plate (102), and the installation plate (102) is provided with a first clamping assembly. The bottle feeding guide rail (112) is symmetrically fixedly connected with limiting horizontal plates (111), and the setting width between the two limiting horizontal plates (111) is equal to the width of the glass bottle body. An L-shaped limiting frame (110) is fixedly connected to the limiting horizontal plate (111). A brush roller (109) for quickly laying down the glass bottle is also provided on one side of the bottle feeding guide rail (112).
2. The device for removing plastic labels and caps from recycled glass bottles according to claim 1, characterized in that: The first clamping assembly includes a track wheel (105) symmetrically rotated on the mounting plate (102) and a clamping track (106) on the track wheel (105) on both sides. The clamping track (106) on both sides is used to clamp and transport the bottle body after it is laid down. The track wheel (105) is driven by a motor.
3. The device for removing plastic labels and caps from recycled glass bottles according to claim 2, characterized in that: The bottle feeding guide rail (112) is also symmetrically fixedly connected to two sides of a triangular platform (107), and a pushing component (108) is provided on the triangular platform (107). The pushing component (108) includes three transmission wheels (108a) arranged in a triangular pattern, and a clamping conveyor belt (108b) is provided between the three transmission wheels.
4. The device for removing plastic labels and caps from recycled glass bottles according to claim 3, characterized in that: The device also includes a heating mechanism (200), and the heating mechanism (200) includes a first conveyor (201) and a soaking tank (202) containing hot water.
5. The device for removing plastic labels and caps from recycled glass bottles according to claim 4, characterized in that: The first conveyor (201) frame is provided with a first spray seat (203) on the front side, and a plurality of first spray heads (204) are provided on the first spray seat (203). The first conveyor (201) frame is provided with a second spray seat (205) on the rear side, and a plurality of second spray heads (206) are provided on the second spray seat (205).
6. The device for removing plastic labels and caps from recycled glass bottles according to claim 1, characterized in that: The device also includes a heating mechanism (200), which includes a steam device (207) and a second conveyor (210). The second conveyor (210) conveys the bottle body through the inside of the steam device (207), with one end aligned with the bottle feeding guide rail (103) and the other end connected to the subsequent production line via an arc track (209). A waste label collection box (208) is provided below the arc track (209).