Punching and liquid discharging equipment for plastic bottle recycling
By using a punch and heating wire to create holes in the plastic bottle recycling equipment to drain the liquid, and combining this with an extrusion mechanism to compress the plastic bottle, the problems of low efficiency in liquid treatment inside plastic bottles and environmental pollution are solved, achieving efficient liquid discharge and plastic bottle compression.
Patent Information
- Application Number
- CN202422752702.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-12
AI Technical Summary
During the plastic bottle recycling process, residual beverages inside the bottles increase their weight, leading to high recycling costs and potential environmental pollution during the squeezing process. Existing technologies are inefficient and costly.
Design a punching and draining device for recycling plastic bottles. The device uses a punching cone and a spiral heating wire to squeeze the plastic bottle on a roller to form holes to drain the liquid. The extrusion mechanism further compresses the volume of the plastic bottle. The heating wire improves the efficiency of hole formation and the separation of the plastic bottle from the punching cone.
It improves the efficiency of liquid discharge from plastic bottles, reduces drill bit wear, lowers manual processing costs, enhances recycling efficiency, and reduces the risk of environmental pollution.
Smart Images

Figure CN223507482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic bottle recycling equipment, specifically a perforation and drainage device for recycling plastic bottles. Background Technology
[0002] In the recycling and granulation process of plastic bottles, extrusion equipment is needed to compress the bottles to reduce their volume for easier transportation and reprocessing. However, the recycled plastic bottles come in various shapes and sizes. Some have caps on the bottle openings and still contain residual beverages. The water inside the bottles increases their overall weight, resulting in higher fees for recyclers in the weight-based recycling process. Furthermore, the extrusion equipment can easily cause water to splash out accidentally, polluting the working environment. Therefore, it is necessary to pour out the residual beverages from the plastic bottles during the recycling process. Manually handling this is too expensive and inefficient. Utility Model Content
[0003] The purpose of this invention is to provide a perforation and drainage device for recycling plastic bottles, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A perforation and drainage device for recycling plastic bottles, comprising:
[0006] frame;
[0007] A perforated drainage box is fixed to the top of the machine frame, and a receiving hopper is fixedly connected to the top of the perforated drainage box;
[0008] A punching mechanism is arranged inside the punching and draining tank. The punching mechanism includes two shafts that rotate with the punching and draining tank. A roller is fixed to the outer side of the shaft. Multiple punching cones are evenly fixed to the outer side of the roller. A spiral heating wire is fixed to the inner side wall of the roller.
[0009] A liquid receiving box is connected and fixed to the bottom of a perforated liquid drainage box, and a mesh plate is fixed to the open end of the liquid receiving box;
[0010] The squeezing mechanism, located inside the perforated drainage tank, is used to squeeze the plastic bottle after the drainage is completed.
[0011] Furthermore, the frame includes a rectangular frame fixedly connected to the perforated drainage tank, and multiple support legs are fixed to the bottom surface of the rectangular frame.
[0012] Furthermore, a linkage gear is fixed to one end of the shaft, and the two linkage gears mesh to drive the transmission. A motor for driving the shaft at the corresponding position is fixed to the outside of the perforated drainage tank.
[0013] Furthermore, an electric slip ring is installed at one end of the shaft, and the electric slip ring is electrically connected to a spiral heating wire via a wire.
[0014] Furthermore, both sides of the interior of the perforated drainage tank are equipped with baffles, the baffles comprising:
[0015] The crossbeam is fixedly connected to the perforated drainage tank;
[0016] Multiple material stop bars are all fixedly connected to the crossbeam.
[0017] Furthermore, a rectangular discharge port is provided at one end of the perforated drainage tank, and a door panel is hinged to the rectangular discharge port.
[0018] Furthermore, the extrusion mechanism includes:
[0019] There are two lead screws, both of which are rotatably connected to the perforated drainage box;
[0020] An extrusion plate is screwed into a lead screw, and the bottom surface of the extrusion plate is slidably connected to the top surface of the mesh plate.
[0021] There are two synchronous pulleys, each fixedly connected to a corresponding lead screw, and a synchronous belt drives between the two synchronous pulleys.
[0022] The beneficial effects of this utility model are:
[0023] 1. Multiple punching cones are evenly fixed on the outer side of the rollers. The two rollers rotate synchronously towards the center of the punching and draining tank, so that the multiple punching cones squeeze and punch holes in the plastic bottle. The two rollers can rotate and squeeze the plastic bottle, which facilitates the discharge of air and residual beverage inside the plastic bottle through the holes. The punching cones are set in a conical shape, which facilitates the gradual creation of larger holes in the plastic bottle during the squeezing process. The conical structure makes the contact area between the punching cone and the workpiece relatively small, which improves the punching efficiency and also helps to reduce the wear of the drill bit.
[0024] 2. By fixing a spiral heating wire inside the roller, the heating wire is energized to heat up the roller and multiple punching cones. The heated punching cones help to make perfect holes in the plastic bottle, so that water can flow away from the holes in the plastic bottle. It also prevents the plastic bottle from being firmly bound to the outside of the punching cone at the hole opening position, and to a certain extent, it allows the plastic bottle to be quickly separated from the punching cone after punching.
[0025] 3. A squeezing plate is slidably connected to the bottom of the perforated drainage box. The squeezing plate is driven by a screw to squeeze the perforated plastic bottle inside the perforated drainage box, which makes it easier to further compress the volume of the plastic bottle. At the same time, the water inside the plastic bottle is fully squeezed into the liquid receiving box, so that the plastic bottle is separated from the beverage remaining inside the plastic bottle. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;
[0027] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;
[0028] Figure 3 This is a schematic diagram of the internal structure of the perforated drainage tank in this utility model;
[0029] Figure 4 This is a schematic diagram of the punching mechanism in this utility model;
[0030] Figure 5 This is a schematic diagram of the extrusion mechanism in this utility model.
[0031] In the diagram: 100, frame; 110, rectangular frame; 120, support leg; 200, perforated drain box; 210, receiving hopper; 220, motor one; 230, motor two; 240, baffle; 250, door panel; 260, protective cover; 300, perforation mechanism; 310, shaft; 311, electric slip ring; 320, roller; 321, perforation cone; 330, spiral heating wire; 340, linkage gear; 400, receiving box; 410, mesh plate; 420, drain pipe; 500, extrusion mechanism; 510, lead screw; 520, extrusion plate; 530, synchronous pulley. Detailed Implementation
[0032] 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.
[0033] Example 1, please refer to Figure 1-5In this embodiment of the present invention, a punching and draining device for recycling plastic bottles includes a frame 100, a punching and draining tank 200 fixed on the top of the frame 100, a receiving hopper 210 fixedly connected to the top of the punching and draining tank 200, a punching mechanism 300 inside the punching and draining tank 200, the punching mechanism 300 including two shafts 310 that rotate with the punching and draining tank 200, a roller 320 fixed on the outer side of the shafts 310, a plurality of punching cones 321 evenly fixed on the outer side of the roller 320, a spiral heating wire 330 fixed on the inner side wall of the roller 320, a receiving box 400 fixedly connected to the bottom of the punching and draining tank 200, a mesh plate 410 fixed on the open end of the receiving box 400, and a squeezing mechanism 500 inside the punching and draining tank 200 for squeezing the plastic bottles after punching and draining.
[0034] Specifically, two rollers 320 are rotatably connected inside the perforation and drainage tank 200. Multiple perforation cones 321 are fixed on the outer side of the rollers 320. Plastic bottles placed between the two rollers 320 are squeezed and perforated by the perforation cones 321 as the rollers 320 rotate. The two rollers 320 can also initially compress the plastic bottles to reduce their volume. The spiral heating wire 330 inside the rollers 320 heats up the rollers 320 and the multiple perforation cones 321, so that the perforation cones 321 can make complete holes in the plastic bottles. This is conducive to the flow of beverage residue inside the plastic bottles out of the plastic bottles. It also makes it easier for the perforation cones 321 to disengage after the plastic bottles are transported to the bottom of the rollers 320, thereby improving the efficiency of perforation and drainage of plastic bottles.
[0035] like Figure 1 As shown, in this embodiment, the frame 100 includes a rectangular frame 110 fixedly connected to the perforated drainage tank 200, and a plurality of support legs 120 are fixed on the bottom surface of the rectangular frame 110.
[0036] In this embodiment, the rectangular frame 110 and multiple support legs 120 cooperate to support and fix the perforated drainage tank 200. A connecting rod is fixed between the support legs 120 on both sides of the rectangular frame 110, and a diagonal brace is fixed between the support legs 120 at both ends of the rectangular frame 110, so that the frame 100 can stably support and fix the entire perforated drainage equipment.
[0037] like Figure 3 As shown, in this embodiment, a linkage gear 340 is fixed at one end of the shaft 310, and the two linkage gears 340 mesh and drive each other. A motor 220 for driving the shaft 310 at the corresponding position is fixed on the outside of the perforated drainage tank 200.
[0038] In this embodiment, motor 220 drives a shaft 310 to rotate, and the two shafts 310 rotate synchronously in opposite directions under the meshing transmission of the linkage gear 340, so that the two rollers 320 on the two shafts 310 can rotate simultaneously toward the center of the punching and draining tank 200, which facilitates the extrusion and punching of plastic bottles.
[0039] like Figure 4 As shown, in this embodiment, an electric slip ring 311 is installed at one end of the shaft 310, and the electric slip ring 311 is electrically connected to the spiral heating wire 330 through a wire.
[0040] In this embodiment, both the slip ring 311 and the heating wire are existing technology components. The specific principle of the slip ring 311 supplying power to the heating wire to generate heat will not be described in detail. The purpose of installing the slip ring 311 is to ensure that the external power supply wire can still supply power to the heating wire through the slip ring 311 during the rotation of the shaft 310.
[0041] like Figure 3 As shown, in this embodiment, baffles 240 are provided on both sides inside the perforated drainage tank 200. The baffles 240 include a crossbeam, which is fixedly connected to the perforated drainage tank 200. Multiple baffle rods are fixedly connected to the inner side of the crossbeam.
[0042] In this embodiment, the baffle rod seals the gap between the roller 320 and the side of the perforated drainage tank 200, preventing the plastic bottles put into the receiving hopper 210 from getting stuck in the squeezing dead corner inside the perforated drainage tank 200. This allows the plastic bottles in the receiving hopper 210 to be fully squeezed and perforated by the perforating cones 321 on the two rollers 320, and also facilitates the quick removal of the plastic bottles inserted on the perforating cones 321 from the roller 320.
[0043] like Figure 3 As shown, in this embodiment, a rectangular discharge port is provided at one end of the perforated drainage tank 200, and a door panel 250 is hinged to the rectangular discharge port.
[0044] In this embodiment, when it is necessary to discharge the plastic bottle inside the perforated drainage tank 200, the door panel 250 can be opened, and then the extrusion plate 520 can be moved towards the rectangular discharge port by means of the lead screw 510 to push the plastic bottle inside the perforated drainage tank 200 out.
[0045] like Figure 1 and Figure 3 As shown, in this embodiment, a protective cover 260 is fixed on the outside of the perforated drainage tank 200. The protective cover 260 serves to protect the synchronous pulley 530 and the linkage gear 340.
[0046] like Figure 2As shown, in this embodiment, a drain pipe 420 is fixedly connected to the bottom of the liquid receiving box 400. Opening the valve on the drain pipe 420 allows the water contained in the liquid receiving box 400 to be discharged from the liquid receiving box 400.
[0047] Example 2, based on Example 1, aims to fully squeeze the water out of the plastic bottle and facilitate the discharge of the plastic bottle to the outside.
[0048] like Figure 3 and Figure 5 As shown, in this embodiment, the extrusion mechanism 500 includes two lead screws 510, both rotatably connected to the perforated drainage tank 200. An extrusion plate 520 is screwed between the two lead screws 510, and the bottom surface of the extrusion plate 520 is slidably connected to the top surface of the mesh plate 410. A synchronous pulley 530 is fixedly connected to one end of each lead screw 510, and a synchronous belt is drivingly connected between the two synchronous pulleys 530.
[0049] Specifically, when it is necessary to fully squeeze the water inside the plastic bottle of the draining rod, the door plate 250 is kept closed. Then, the motor 230 drives one lead screw 510 to rotate, and the other lead screw 510 rotates synchronously under the transmission of the synchronous pulley 530 and the synchronous belt. This causes the two lead screws 510 to rotate and drive the squeezing plate 520 to squeeze the plastic bottle inside the perforated draining tank 200 toward the door plate 250. During the squeezing process, the residual water will fall into the receiving box 400 through the mesh plate 410, and at the same time, the volume of the plastic bottle can be further compressed and reduced.
[0050] 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.
[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A perforation and drainage device for recycling plastic bottles, characterized in that, include: Rack (100); A perforated drain box (200) is fixed on the top of the frame (100), and a receiving hopper (210) is fixedly connected to the top of the perforated drain box (200); A punching mechanism (300) is arranged inside the punching drain tank (200). The punching mechanism (300) includes two shafts (310) that rotate with the punching drain tank (200). A roller (320) is fixed on the outer side of the shaft (310). Multiple punching cones (321) are evenly fixed on the outer side of the roller (320). A spiral heating wire (330) is fixed on the inner wall of the roller (320). A liquid receiving box (400) is connected and fixed to the bottom of a perforated drain box (200), and a mesh plate (410) is fixed to the open end of the liquid receiving box (400); The squeezing mechanism (500) is located inside the perforated drainage tank (200) and is used to squeeze the plastic bottle after it has been perforated and drained.
2. The perforation and drainage device for recycling plastic bottles according to claim 1, characterized in that, The frame (100) includes a rectangular frame (110) fixedly connected to the perforated drain tank (200), and a plurality of support legs (120) are fixed on the bottom surface of the rectangular frame (110).
3. The perforation and drainage device for recycling plastic bottles according to claim 1, characterized in that, One end of the shaft (310) is fixed with a linkage gear (340), and the two linkage gears (340) mesh to drive the transmission. The outside of the perforated drainage tank (200) is fixed with a motor (220) for driving the shaft (310) at the corresponding position to rotate.
4. The perforation and drainage device for recycling plastic bottles according to claim 1, characterized in that, An electric slip ring (311) is installed at one end of the shaft (310), and the electric slip ring (311) is electrically connected to the spiral heating wire (330) through a wire.
5. The perforation and drainage device for recycling plastic bottles according to claim 1, characterized in that, Both sides of the inside of the perforated drain tank (200) are equipped with baffles (240), and the baffles (240) include: The crossbeam is fixedly connected to the perforated drainage tank (200); Multiple material stop bars are all fixedly connected to the crossbeam.
6. The perforation and drainage device for recycling plastic bottles according to claim 1, characterized in that, A rectangular discharge port is provided at one end of the perforated drainage tank (200), and a door panel (250) is hinged to the rectangular discharge port.
7. The perforation and drainage device for recycling plastic bottles according to claim 1, characterized in that, The extrusion mechanism (500) includes: Two lead screws (510) are rotatably connected to the perforated drain tank (200); The extrusion plate (520) is screwed to the lead screw (510), and the bottom surface of the extrusion plate (520) is slidably connected to the top surface of the mesh plate (410). There are two synchronous pulleys (530), which are fixedly connected to the corresponding lead screws (510). The two synchronous pulleys (530) are connected by a synchronous belt.