Bottle neck ring removing device for high-purity PET bottle flake production

Abstract

The invention discloses a bottle neck ring removing device for high-purity PET bottle flake production, and relates to the technical field of PET bottle flake production. The device specifically comprises a fusing cutting assembly, a movable clamping assembly and a clamping driving assembly, a positioning bottom plate is fixedly installed at the bottom end of the movable clamping assembly, the clamping driving assembly is arranged at one end of the movable clamping assembly, and the fusing cutting assembly is arranged at the top end of the movable clamping assembly. And uncapped plastic bottles are clamped and transferred in the movable clamping assembly. A bottleneck ring of a PET bottle is heated and cut through the heating and slitting conical head heated to 80-100 DEG C, the cutting difficulty is reduced, meanwhile, operation is rapid, the fusing cutting assembly can rapidly complete lifting and cutting work, the using effect of the whole device is improved, the PET bottle cannot be greatly affected, PET scraps cannot be generated, and the production efficiency of the whole device is improved. The recovery efficiency of the PET bottles is improved, and the purity and quality of the PET bottle flakes are ensured.

Description

Technical Field

[0001] This invention relates to the field of PET bottle flake production technology, and in particular to a device for removing bottle neck rings in the production of high-purity PET bottle flakes. Background Technology

[0002] The neck ring of a PET bottle generally refers to a one-time breakable tamper-evident seal. It is a security design used to ensure that the bottled product has not been opened. When a consumer unscrews the cap, the tamper-evident seal will separate due to heat or external force and remain on the bottle, thus providing a way to identify whether the bottled product has been opened.

[0003] The one-time breakable tamper-evident ring (hereinafter referred to as the neck ring) is integrally injection molded from the same material as the bottle cap. When the plastic bottle cap is attached to the mouth of the PET bottle, a mechanical cutting method is used to create a multi-point connection between the neck ring and the bottle cap. When the bottle cap is opened, the connection is broken at the bottle mouth due to the action of the bottle mouth limiting ring and the upward pulling force generated by the spiral of the bottle cap itself. Most neck rings will remain at the bottle mouth. During the production of PET bottle flakes, the neck ring must also be removed during the removal of the bottle cap and label tape to ensure the purity of the PET bottle flakes.

[0004] Existing methods for removing bottle neck rings include manual processing, which is relatively time-consuming; some methods involve cutting the neck ring at multiple angles to detach it from the PET bottle. However, this cutting method easily damages the PET bottle, causing PET fragments to mix with the neck ring waste, making separation difficult. PET bottles have a melting point of 250-255 degrees Celsius, while bottle neck rings are commonly made of polyethylene or polypropylene. Polyethylene has a melting point of 110-115 degrees Celsius, and polypropylene has a melting point of 160-170 degrees Celsius. Both have melting temperatures much lower than PET bottles, making a melting and cutting method simpler and more convenient. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a neck ring removal device for the production of high-purity PET bottle flakes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for removing bottle neck rings in the production of high-purity PET bottle flakes includes: a melting and cutting assembly, a moving clamping assembly, and a clamping drive assembly. A positioning base plate is fixedly installed at the bottom end of the moving clamping assembly. The clamping drive assembly is located at one end of the moving clamping assembly. The melting and cutting assembly is located at the top end of the moving clamping assembly. A capped plastic bottle is clamped and transported inside the moving clamping assembly. The capped plastic bottle is a PET bottle with a bottle neck ring attached to its mouth.

[0008] The movable clamping assembly includes two movable clamping units, each of which includes multiple clamping arc frames and a rubber conveyor belt that drives the clamping arc frames to move; the clamping drive assembly includes a dual-axis servo motor and two reducers connected by a coupling, and the output shaft of the reducer is fixedly mounted with a drive bevel gear.

[0009] The fusion cutting assembly includes a fusion cutting unit installed inside a bracket. The fusion cutting unit includes a mounting top plate and a positioning connecting plate. Multiple limiting guide rods are equidistantly slidably connected to both sides of the lower surface of the mounting top plate. A fixing connecting ring is fixedly connected to the bottom end of each limiting guide rod. Multiple fixing connecting rods are equidistantly fixedly connected to the bottom end of each fixing connecting ring. The bottom ends of the multiple fixing connecting rods are fixedly connected to the positioning connecting plate. A drive turntable is rotatably mounted on the top of the positioning connecting plate. Multiple... A movable sliding arm is provided, with a cutting connecting rod fixedly connected to its bottom end. A heating cutting cone is fixedly connected to the bottom end of the cutting connecting rod. A rotating connecting tube shaft is fixedly installed at the top end of the drive turntable. A lifting ring tube is fixedly sleeved on the outer wall of the rotating connecting tube shaft. The outer wall of the lifting ring tube is provided with multiple spiral ring grooves and multiple matching ring grooves. Two sets of ring groove matching sliding columns are slidably installed inside the spiral ring grooves. One end of each set of ring groove matching sliding columns is fixedly connected to a limiting arc plate. The top end of the limiting arc plate is fixedly connected to the mounting top plate.

[0010] As a preferred embodiment of the present invention: two sets of support plates are symmetrically arranged at the top of the fixed connecting ring, and a protective arc plate is fixedly connected to one end of each set of support plates, and the two protective arc plates are attached to the outer wall of the lifting ring tube.

[0011] As a preferred embodiment of the present invention: a transmission pin is fixedly installed at the top end of the rotating connecting tube shaft, and a slitting servo motor is connected to the top end of the transmission pin through a bevel gear pair. A motor bracket is fixedly installed at the bottom end of the slitting servo motor, and the motor bracket is fixedly installed at the top end of a set of support plates.

[0012] As a preferred embodiment of the present invention: an air guiding connecting ring is fixedly installed on the outer wall of the positioning connecting plate, the top end of the air guiding connecting ring is connected to a high-pressure air pump connector through a pressure-resistant pipe, and multiple high-pressure jet ducts are fixedly connected at equal intervals to the bottom end of the air guiding connecting ring.

[0013] As a preferred embodiment of the present invention: the top end of the limiting guide rod penetrates through the mounting top plate and extends upward, the top of its extension end is fixedly installed with a limiting plate, and a support spring is sleeved on the outer wall of the extension end of the limiting guide rod. The bracket includes a connecting arm and a support column fixedly installed on the upper surface of the mounting top plate. The two support columns are respectively fixedly installed at the bottom of both ends of the connecting arm and fixed to the positioning base plate.

[0014] As a preferred embodiment of the present invention: a plurality of clamping arc frames are fixedly connected at equal intervals to the outer wall of the rubber conveyor belt, and one end of each clamping arc frame is fixedly connected to a matching rubber pad. The inner wall of the rubber conveyor belt is provided with a synchronous belt, and the two ends of the synchronous belt are engaged with drive pulleys.

[0015] Based on the aforementioned scheme: a drive connecting shaft is fixedly installed at the bottom of the drive pulley, and a support top arm is rotatably connected to the bottom of the two drive connecting shafts. Multiple adapter support blocks are fixedly connected at equal intervals to the top of the support top arm.

[0016] Based on the aforementioned scheme: a support base plate is fixedly installed on the top of each of the multiple adapter support blocks, an installation ring frame is fixedly connected to the top of the support base plate, and a protective top cover is fixedly installed on the top of the installation ring frame.

[0017] Based on the aforementioned scheme: multiple positioning rotating pins are fixedly connected at equal intervals on the side of the bottom end of the protective top cover, and a limiting rotating sleeve is rotatably installed on the outer wall of the positioning rotating pin, and the limiting rotating sleeve is attached to the outer wall of the rubber conveyor belt.

[0018] Based on the aforementioned scheme: a support plate is fixedly connected to the bottom end of the support top arm, a bearing base plate is fixedly connected to the bottom end of the support plate, a drive mounting shaft is fixedly connected to the bottom end of one of the drive connecting shafts, and a transmission bevel gear is fixedly mounted at the bottom of the drive mounting shaft.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This high-purity PET bottle flake production neck ring removal device uses a heated cutting cone head heated to 80 to 100 degrees Celsius to heat and cut the neck ring of the PET bottle, reducing the cutting difficulty. At the same time, the operation is rapid, and the melting and cutting components can quickly complete the lifting and cutting work, improving the overall use effect of the device. It will not cause significant impact on the PET bottle, will not produce PET fragments, improve the recycling efficiency of PET bottles, and ensure the purity and quality of PET bottle flakes.

[0021] 2. This high-purity PET bottle flake production neck ring removal device uses high-pressure airflow delivered through a high-pressure jet duct to impact areas with increased spacing. The reaction force of the airflow impacting the bottle mouth causes the neck ring to be cut off from the bottle mouth. At the same time, the low-temperature air rapidly cools the molten part of the cut neck ring, preventing plastic stringing.

[0022] 3. This high-purity PET bottle flake production neck ring removal device uses a moving clamping assembly to clamp and transfer PET bottles, working in conjunction with a melting and cutting assembly to improve the overall efficiency and continuity of the device. The overall device has a simple structure and is easy to use. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall assembly of the present invention;

[0024] Figure 2 This is a three-dimensional structural schematic diagram of the fuse cutting assembly of the present invention;

[0025] Figure 3 This is a partial cross-sectional view of the fuse cutting assembly of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0027] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0028] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point C;

[0029] Figure 7 This is a three-dimensional structural diagram of the movable clamping unit of the present invention;

[0030] Figure 8 This is a partial cross-sectional view of the movable clamping unit of the present invention;

[0031] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point D;

[0032] Figure 10 This is a three-dimensional structural diagram of the clamping drive component of the present invention.

[0033] In the diagram: 1. Positioning base plate; 2. Fusion cutting assembly; 201. Connecting arm; 202. Support column; 203. Mounting top plate; 204. Limiting guide rod; 205. Fixing connecting ring; 206. Fixing connecting rod; 207. Positioning connecting plate; 208. Air guide connecting ring pipe; 209. High-pressure air pump connector; 210. Drive turntable; 211. Positioning slide groove; 212. Limiting protrusion; 213. Moving slide arm 214. Sliding connecting rod; 215. Heated slitting cone; 216. High-pressure jet duct; 217. Positioning cylinder; 218. Rotating connecting pipe shaft; 219. Limiting convex ring; 220. Lifting ring pipe; 221. Adaptive ring groove; 222. Spiral ring groove; 223. Ring groove adapting slide column; 224. Limiting arc plate; 225. Reinforcing rib plate; 226. Support frame plate; 227. Protective arc plate; 228. Transmission pin 1. Shaft; 229. Driven bevel gear; 230. Driven bevel gear; 231. Slitting servo motor; 232. Motor bracket; 3. Moving clamping assembly; 301. Bearing base plate; 302. Supporting upright plate; 303. Supporting rib plate; 304. Supporting top arm; 305. Adaptive support block; 306. Supporting base plate; 307. Mounting ring frame; 308. Protective top cover; 309. Drive connecting shaft; 310. Drive pulley; 311. Synchronous belt; 312. Rubber conveyor belt; 313. Drive mounting shaft; 314. Transmission bevel gear; 315. Clamping arc frame; 316. Adaptive rubber pad; 317. Positioning rotating pin; 318. Limiting rotating sleeve; 4. Uncapped plastic bottle; 5. Clamping drive assembly; 501. Mounting base plate; 502. Dual-axis servo motor; 503. Coupling; 504. Reducer; 505. Drive bevel gear. Detailed Implementation

[0034] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] A device for removing bottle neck rings in the production of high-purity PET bottle flakes, such as... Figures 1 to 10As shown, it includes: a fusion cutting assembly 2, a movable clamping assembly 3, and a clamping drive assembly 5. A positioning base plate 1 is fixedly installed at the bottom end of the movable clamping assembly 3. The clamping drive assembly 5 is located at one end of the movable clamping assembly 3 and drives the movable clamping assembly 3 to work in conjunction with the fusion cutting assembly 2. The fusion cutting assembly 2 is located at the top end of the movable clamping assembly 3, and the movable clamping assembly 3 internally clamps and transports a capped plastic bottle 4. The capped plastic bottle 4 is a PET bottle with a neck ring attached to the bottle mouth. The neck ring attached to the bottle mouth of the capped plastic bottle 4 is removed by the fusion cutting assembly 2. At the same time, a collection mesh frame is provided inside the movable clamping assembly 3 to collect the cut neck ring.

[0037] Example 1: The neck ring is quickly divided into multiple parts by heating and melting. With the help of high-pressure airflow, the divided neck ring is detached from the PET bottle. The melted cut is cooled quickly to avoid plastic stringing and improve the neck ring removal efficiency.

[0038] The fusion cutting assembly 2 includes a fusion cutting unit installed inside the bracket. The bracket includes a connecting arm 201 and a support column 202. There are two support columns 202, the top of which is fixed to the end of the connecting arm 201, and the bottom of which is fixed to the positioning base plate 1 by bolts.

[0039] The fusion cutting unit includes a mounting top plate 203 and a positioning connecting plate 207. The mounting top plate 203 is fixedly installed at the middle of the bottom end of the connecting frame arm 201 by bolts. Multiple limiting guide rods 204 are equidistantly slidably connected on both sides of the lower surface of the mounting top plate 203. The top of the limiting guide rod 204 passes through the mounting top plate 203 and extends upward. The top of its extension end is fixedly installed with a limiting plate by bolts. A support spring is sleeved on the outer wall of the extension end of the limiting guide rod 204. The bottom end of the support spring is fixed to the mounting top plate 203, and the top end of the support spring is fixed to the limiting plate.

[0040] A fixed connecting ring 205 is welded to the bottom end of multiple limiting guide rods 204. A multiple fixed connecting rod 206 is welded at equal intervals to the bottom end of the fixed connecting ring 205. The bottom ends of the multiple fixed connecting rods 206 are welded to the positioning connecting plate 207. A driving turntable 210 is rotatably mounted on the top end of the positioning connecting plate 207. A multiple movable sliding arm 213 is slidably connected to the bottom end of the driving turntable 210. A vortex ring is integrally formed on the bottom end of the driving turntable 210. A groove that mates with the vortex ring is opened on the top end of the movable sliding arm 213. A multiple positioning groove 211 is equidistantly opened on the bottom end of the positioning connecting plate 207. The movable sliding arm 213 is slidably mounted inside the positioning groove 211. A limiting protrusion 212 is fixedly connected to the inner wall of the bottom end of the positioning groove 211, so that the movable sliding arm 213 remains stable inside the positioning groove 211 and will not detach from the positioning groove 211.

[0041] A slitting link 214 is welded to the bottom end of the movable sliding arm 213. The bottom end of the slitting link 214 passes through the positioning slide groove 211 and extends downward. A heating slitting cone 215 is fixedly installed on the side of the extension end near the axis of the drive turntable 210 by bolts. The heating slitting cone 215 is made of C7025 copper alloy with high strength, corrosion resistance and excellent thermal conductivity. The end away from the slitting link 214 is set as a tip. The top view of the heating slitting cone 215 is a combination of an isosceles triangle and a rectangle (the base of the isosceles triangle is the same length as the length of the rectangle).

[0042] The heating slitting cone 215 is equipped with an electric heating element, which is connected to a power source via a wire. The wire is fixed to the slitting connecting rod 214. After the electric heating element is powered on, it quickly heats up to 80 to 100 degrees Celsius. At this temperature, the bottle neck ring is close to its melting temperature, while the PET bottle only undergoes minor thermal deformation. Under the pressure of the tip of the heating slitting cone 215, the bottle neck ring is quickly cut off. If thermal deformation of the PET bottle is not desired, the heating slitting cone 215 can be replaced with a slitting cone. The slitting cone can be made of high-strength, corrosion-resistant stainless steel. During the production and processing of PET bottles, the thickness of the bottle mouth is greater than that of the bottle body, and it can withstand greater external forces. Using multiple stainless steel slitting cones to simultaneously crush the bottle neck ring from multiple angles can also allow the bottle neck ring to quickly detach from the bottle mouth.

[0043] A positioning cylinder 217 is welded to the top of the drive turntable 210. A rotating connecting tube shaft 218 is fixedly installed inside the positioning cylinder 217 by bolts. A limiting protrusion ring 219 is integrally formed at the bottom of the outer wall of the rotating connecting tube shaft 218. A lifting ring tube 220 is provided at the top of the limiting protrusion ring 219, and the lifting ring tube 220 is fixedly sleeved on the outer wall of the rotating connecting tube shaft 218.

[0044] The outer wall of the lifting ring pipe 220 is provided with multiple spiral ring grooves 222 and multiple matching ring grooves 221, such as Figure 5 As shown, there are two symmetrical spiral annular grooves 222 and three equidistant fitting annular grooves 221, and the three fitting annular grooves 221 are respectively connected to the top, middle and bottom of the spiral annular grooves 222.

[0045] The spiral annular groove 222 has two sets of annular groove adapter sliding pins 223 slidably installed inside, with two pins 223 in each set. Figure 5 As shown, the two sets of annular groove adapter sliding pins 223 are respectively set inside the adapter annular grooves 221 at the top and middle. At this time, the upper surface of the heating and cutting cone 215 and the upper surface of the neck ring are in the same plane.

[0046] Each set of annular groove adapter sliding column 223 has a limiting arc plate 224 welded to the end away from the lifting ring pipe 220. The top of the limiting arc plate 224 is fixed to the mounting top plate 203 by bolts. The side of the limiting arc plate 224 away from the annular groove adapter sliding column 223 is integrally formed with a reinforcing rib plate 225. The two limiting arc plates 224 are symmetrically arranged.

[0047] Two sets of support plates 226 are symmetrically arranged at the top of the fixed connecting ring 205. The support plates 226 are welded to the fixed connecting ring 205, and a protective arc plate 227 is welded to one end of each support plate 226 near the axis of the fixed connecting ring 205. The two protective arc plates 227 are attached to the outer wall of the lifting ring tube 220. The outer diameter of the protective arc plate 227 is the same as the inner diameter of the limiting arc plate 224, and the two ends of the protective arc plate 227 are respectively attached to the two limiting arc plates 224.

[0048] A transmission pin 228 is fixedly installed at the top end of the rotating connecting pipe shaft 218. A driven bevel gear 229 is fixedly installed at the top end of the transmission pin 228. The driven bevel gear 229 is meshed with a driving bevel gear 230. The driving bevel gear 230 is fixedly installed on the output shaft of the cutting servo motor 231. A motor bracket 232 is fixedly installed at the bottom end of the cutting servo motor 231. The motor bracket 232 is fixedly installed on the top end of a set of support plates 226.

[0049] A gas-guiding connecting ring pipe 208 is fixedly installed on the outer wall of the positioning connecting plate 207. The top end of the gas-guiding connecting ring pipe 208 is connected to a high-pressure air pump connector 209 through a pressure-resistant pipe. The high-pressure air pump connector 209 is connected to an external air pump. Multiple high-pressure jet ducts 216 are fixedly connected at equal intervals at the bottom end of the gas-guiding connecting ring pipe 208. The multiple high-pressure jet ducts 216 are spaced apart from the multiple cutting connecting rods 214. The air outlet of the high-pressure jet duct 216 is in the same plane as the upper surface of the heating cutting cone 215. When the heating cutting cone 215 cuts the bottle neck ring, the high-pressure jet duct 216 quickly sprays out low-temperature air, causing the cut bottle neck ring to detach from the bottle mouth of the PET bottle.

[0050] The moving distance of the heated slitting cone 215 is controlled by a controller (not shown). The circle where the tips of the multiple heated slitting cones 215 are located after cutting the bottle neck ring has the same diameter as the outer diameter of the PET bottle mouth (the bottle mouth position where the bottle neck ring is located). After the bottle neck ring is cut, high-pressure air is blown directly towards the bottle mouth position where the bottle neck ring is located. The inner diameter of the bottle neck ring is slightly larger than the outer diameter of the bottle mouth. During the cutting, the squeezing force generated by the heated slitting cone 215 on the bottle neck ring will increase the local distance between the bottle neck ring and the bottle mouth. The high-pressure airflow impacts the position where the local distance has increased, and the reaction force of the airflow impacting the bottle mouth causes the cut section of the bottle neck ring to separate from the bottle mouth. At the same time, the low-temperature air rapidly cools the melted part of the cut end of the bottle neck ring, avoiding plastic stringing.

[0051] In this embodiment, during use, the capped plastic bottle 4 is moved directly below the fusion cutting assembly 2, so that the central axis of the capped plastic bottle 4 coincides with the central axis of the positioning connecting plate 207. Then, the cutting servo motor 231 is started. The cutting servo motor 231 drives the transmission pin 228 through the bevel gear pair. The transmission pin 228 drives the rotating connecting tube shaft 218 to rotate clockwise, thereby causing the lifting ring tube 220 and the drive turntable 210 to rotate synchronously. The clockwise rotation of the lifting ring tube 220 causes the annular groove adapter slide column 223 to move upward inside the spiral annular groove 222 until the position of the lifting ring tube 220 and the annular groove adapter slide column 223 is as follows. Figure 5 As shown, since the position of the annular groove adapter slide 223 is fixed relative to the mounting top plate 203, rotating the connecting pipe shaft 218 moves downward, and then driving the limiting guide rod 204 to move downward through the fixed connecting ring 205, so that the limiting plate compresses the support spring.

[0052] During the above process, the rotation of the drive turntable 210 causes multiple moving slide arms 213 to move closer to the axis of the drive turntable 210. When the positions of the lifting ring tube 220 and the ring groove matching slide column 223 are as follows... Figure 5 As shown, the upper surface of the heating and cutting cone 215 is in the same plane as the upper surface of the bottle neck ring, but there is a certain gap between the tip of the heating and cutting cone 215 and the bottle neck ring. The rotating connecting pipe shaft 218 rotates continuously clockwise, so that the heating and cutting cone 215 melts and cuts the bottle neck ring. After the cutting is completed, the controller controls the external high-pressure air pump to inject low-temperature high-pressure air into the air guide connecting ring pipe 208 through the high-pressure air pump connector 209, and blows it to the PET bottle mouth through the high-pressure jet pipe 216, so that the cut section of the bottle neck ring is separated from the bottle mouth. At the same time, the low-temperature air cools the melted part of the cut end of the bottle neck ring quickly, avoiding plastic stringing.

[0053] Then the controller controls the slitting servo motor 231 to reverse, driving the turntable 210 to move the heating slitting cone 215 away from the PET bottle mouth by moving the sliding arm 213. At the same time, under the action of multiple support springs, the limiting guide rod 204 moves upward, causing the annular groove adapter slide column 223 to enter the spiral annular groove 222 from the adapter annular groove 221. The two sets of annular groove adapter slide columns 223 enter the adapter annular grooves 221 in the middle and bottom respectively, completing one PET bottle neck ring removal operation.

[0054] Example 2: Based on Example 1, the neck of the PET bottle is clamped by the moving clamping component 3, so that the melting and cutting component 2 can quickly remove the neck ring, while ensuring that the PET bottle remains stable during the above process.

[0055] The movable clamping assembly 3 includes two movable clamping units. Each movable clamping unit includes multiple clamping arc frames 315 and a rubber conveyor belt 312 that drives the clamping arc frames 315 to move. The multiple clamping arc frames 315 are equidistantly fixed to the outer wall of the rubber conveyor belt 312. Each clamping arc frame 315 includes an integrally formed arc arm and a connecting rod. The inner wall of the arc arm is bonded with a matching rubber pad 316. The two clamping arc frames 315 corresponding to the two movable clamping units are clamped at the lower part of the bottle mouth of the capped plastic bottle 4, so that the bottle neck ring is above the clamping arc frame 315.

[0056] The inner wall of the rubber conveyor belt 312 is provided with a synchronous belt 311. The inner and outer walls of the synchronous belt 311 are provided with multiple friction grooves at equal intervals. The outer wall of the synchronous belt 311 is integrally formed with a retaining edge, which is engaged inside the rubber conveyor belt 312. The two ends inside the synchronous belt 311 are engaged with drive pulleys 310. The outer wall of the drive pulley 310 is integrally formed with a protruding edge corresponding to the friction groove, so that the drive pulley 310 can drive the synchronous belt 311.

[0057] A drive connecting shaft 309 is fixedly installed at the bottom of the drive pulley 310. The bottom of the two drive connecting shafts 309 is rotatably connected to a support top arm 304. Multiple adapter support blocks 305 are welded at equal intervals to the top of the support top arm 304. A support base plate 306 is fixedly installed at the top of the multiple adapter support blocks 305 by bolts. An installation ring frame 307 is integrally formed at the top of the support base plate 306. The installation ring frame 307 is set inside the synchronous belt 311 to support the synchronous belt 311, but does not affect the rotation of the synchronous belt 311. A rubber conveyor belt 312 is set on the upper surface of the support base plate 306. Two drive pulleys 310 are set at both ends of the support base plate 306.

[0058] The top of the mounting ring 307 is fixedly mounted with a protective top cover 308 by a pin. Multiple positioning rotating pins 317 are welded at equal intervals on the bottom side of the protective top cover 308. A limiting rotating sleeve 318 is rotatably mounted on the outer wall of the positioning rotating pin 317. The limiting rotating sleeve 318 fits against the outer wall of the rubber conveyor belt 312 to limit the top of the rubber conveyor belt 312, reduce the influence of the clamping arc frame 315 on the rubber conveyor belt 312, and can stably clamp and transfer the capped plastic bottle 4.

[0059] A support plate 302 is welded to the bottom end of the support top arm 304, and a bearing base plate 301 is welded to the bottom end of the support plate 302. Multiple support ribs 303 are welded at equal intervals on both sides of the support plate 302. The bottom ends of the support ribs 303 are welded to the bearing base plate 301. Two limiting frames are integrally formed on the upper surface of the positioning base plate 1. The bearing base plates 301 of the two moving clamping units are respectively fixedly installed inside the two limiting frames.

[0060] One of the drive connecting shafts 309 is fixedly connected to the bottom end of a drive mounting shaft 313, and a transmission bevel gear 314 is fixedly mounted on the bottom of the drive mounting shaft 313.

[0061] The clamping drive assembly 5 includes a dual-axis servo motor 502 and two reducers 504 connected by a coupling 503. The bottom ends of the dual-axis servo motor 502 and the two reducers 504 are fixedly mounted with support bases. The bottom ends of the multiple support bases are fixedly mounted with mounting base plates 501. The output shaft of the reducer 504 is fixedly mounted with a drive bevel gear 505. The two ends of the mounting base plate 501 are respectively fixed to two bearing base plates 301. The two drive bevel gears 505 mesh with two transmission bevel gears 314 respectively, thereby causing the corresponding two drive pulleys 310 to rotate synchronously in opposite directions, so that the clamping arc frame 315 of the two moving clamping units can smoothly clamp the capped plastic bottle 4 and transfer it stably.

[0062] Based on Embodiment 1, in this embodiment, the controller controls the dual-axis servo motor 502 to perform intermittent motion, in conjunction with the cutting servo motor 231. When the dual-axis servo motor 502 starts, the cutting servo motor 231 stops, and vice versa.

[0063] The dual-axis servo motor 502 drives the drive bevel gear 505 to rotate via the coupling 503 and the reducer 504. The drive bevel gear 505 meshes with the transmission bevel gear 314. The transmission bevel gear 314 drives the drive connecting shaft 309 and the drive pulley 310 to rotate synchronously via the drive mounting shaft 313. Then, the synchronous belt 311 drives the rubber conveyor belt 312 to move synchronously. The clamping arc frame 315 clamps the capped plastic bottle 4 and moves the capped plastic bottle 4 directly below the melting and cutting assembly 2. Then, according to Embodiment 1, the melting and cutting assembly 2 removes the neck ring of the capped plastic bottle 4.

[0064] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for removing bottle neck rings in the production of high-purity PET bottle flakes, characterized in that, include: The assembly includes a fusion cutting component (2), a movable clamping component (3), and a clamping drive component (5). The bottom end of the movable clamping component (3) is fixedly equipped with a positioning base plate (1). The clamping drive component (5) is located at one end of the movable clamping component (3). The fusion cutting component (2) is located at the top end of the movable clamping component (3). The movable clamping component (3) also clamps and transports a capless plastic bottle (4) inside. The capless plastic bottle (4) is a PET bottle with a bottle neck ring attached to the bottle mouth. The movable clamping assembly (3) includes two movable clamping units, each of which includes multiple clamping arc frames (315) and a rubber conveyor belt (312) that drives the clamping arc frames (315) to move; the clamping drive assembly (5) includes a dual-axis servo motor (502) and two reducers (504) that are connected by a coupling (503), and the output shaft of the reducer (504) is fixedly mounted with a drive bevel gear (505); The fusion cutting assembly (2) includes a fusion cutting unit installed inside the bracket. The fusion cutting unit includes a mounting top plate (203) and a positioning connecting plate (207). Multiple limiting guide rods (204) are equidistantly slidably connected to both sides of the lower surface of the mounting top plate (203). A fixing connecting ring (205) is fixedly connected to the bottom end of each of the multiple limiting guide rods (204). Multiple fixing connecting rods (206) are equidistantly fixedly connected to the bottom end of each fixing connecting ring (205). The bottom ends of the multiple fixing connecting rods (206) are fixedly connected to the positioning connecting plate (207). A driving turntable (210) is rotatably mounted on the top of the positioning connecting plate (207). Multiple movable sliding arms (213) are slidably connected to the bottom end of the driving turntable (210). The bottom end of the movable sliding arm (213) is fixedly connected to a cutting link (214), and the bottom end of the cutting link (214) is fixedly connected to a heating cutting cone (215); the top end of the drive turntable (210) is fixedly installed with a rotating connecting tube shaft (218), and the outer wall of the rotating connecting tube shaft (218) is fixedly sleeved with a lifting ring tube (220). The outer wall of the lifting ring tube (220) is provided with multiple spiral ring grooves (222) and multiple matching ring grooves (221), and two sets of ring groove matching sliding columns (223) are slidably installed inside the spiral ring grooves (222). One end of each set of ring groove matching sliding columns (223) is fixedly connected to a limiting arc plate (224), and the top end of the limiting arc plate (224) is fixedly connected to the mounting top plate (203).

2. The device for removing bottle neck rings in the production of high-purity PET bottle flakes according to claim 1, characterized in that: The top of the fixed connecting ring (205) is symmetrically provided with two sets of support frame plates (226), and one end of each set of support frame plates (226) is fixedly connected with a protective arc plate (227). The two protective arc plates (227) are attached to the outer wall of the lifting ring pipe (220).

3. The device for removing bottle neck rings in the production of high-purity PET bottle flakes according to claim 1, characterized in that: A transmission pin (228) is fixedly installed at the top end of the rotating connecting tube shaft (218). The top end of the transmission pin (228) is connected to a slitting servo motor (231) via a bevel gear pair. A motor bracket (232) is fixedly installed at the bottom end of the slitting servo motor (231). The motor bracket (232) is fixedly installed at the top end of a set of support plates (226).

4. The neck ring removal device for high-purity PET bottle flake production according to claim 1, characterized in that: The outer wall of the positioning connecting plate (207) is fixedly installed with a gas guiding connecting ring pipe (208). The top end of the gas guiding connecting ring pipe (208) is connected to a high-pressure air pump connector (209) through a pressure-resistant pipe, and the bottom end of the gas guiding connecting ring pipe (208) is fixedly connected with multiple high-pressure jet ducts (216) at equal intervals.

5. The neck ring removal device for high-purity PET bottle flake production according to claim 1, characterized in that: The top end of the limiting guide rod (204) passes through the mounting top plate (203) and extends upward. A limiting plate is fixedly installed at the top of its extension end, and a support spring is sleeved on the outer wall of the extension end of the limiting guide rod (204). The bracket includes a connecting arm (201) and a support column (202) fixedly installed on the upper surface of the mounting top plate (203). The two support columns (202) are respectively fixedly installed at the bottom of both ends of the connecting arm (201) and fixed to the positioning base plate (1).

6. The neck ring removal device for high-purity PET bottle flake production according to claim 1, characterized in that: Multiple clamping arc frames (315) are fixedly connected at equal intervals to the outer wall of the rubber conveyor belt (312), and one end of each clamping arc frame (315) is fixedly connected to a matching rubber pad (316). The inner wall of the rubber conveyor belt (312) is provided with a synchronous belt (311), and the two ends of the synchronous belt (311) are engaged with drive pulleys (310).

7. The neck ring removal device for high-purity PET bottle flake production according to claim 6, characterized in that: The bottom end of the drive pulley (310) is fixedly installed with a drive connecting shaft (309), and the bottom of the two drive connecting shafts (309) is rotatably connected with a support top arm (304). The top end of the support top arm (304) is fixedly connected with multiple adapter support blocks (305) at equal intervals.

8. The neck ring removal device for high-purity PET bottle flake production according to claim 7, characterized in that: A support base plate (306) is fixedly installed on the top of each of the multiple adapter support blocks (305), and an installation ring frame (307) is fixedly connected to the top of the support base plate (306). A protective top cover (308) is fixedly installed on the top of the installation ring frame (307).

9. A neck ring removal device for high-purity PET bottle flake production according to claim 8, characterized in that: Multiple positioning rotating pins (317) are fixedly connected at equal intervals on the side of the bottom end of the protective top cover (308). A limiting rotating sleeve (318) is rotatably installed on the outer wall of the positioning rotating pin (317). The limiting rotating sleeve (318) is attached to the outer wall of the rubber conveyor belt (312).

10. A neck ring removal device for high-purity PET bottle flake production according to claim 7, characterized in that: The bottom end of the support top arm (304) is fixedly connected to a support plate (302), the bottom end of the support plate (302) is fixedly connected to a bearing base plate (301), and the bottom end of one of the drive connecting shafts (309) is fixedly connected to a drive mounting shaft (313), and a transmission bevel gear (314) is fixedly mounted on the bottom of the drive mounting shaft (313).

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