A polyvinyl chloride plastic granulator

Abstract

The present invention relates to the field of granulation technology, and specifically to a polyvinyl chloride plastic granulator, comprising: an injection cylinder, an injection assembly, the injection assembly comprising a molding cavity opened in a circumferential array on the inner wall of the injection cylinder, the molding cavity being arranged in a square shape, a conical rotating disk being arranged at the upper position of the inner wall of the injection cylinder, the conical rotating disk being driven to rotate at the upper position of the inner wall of the injection cylinder, and a second spring being fixedly installed at the inner bottom end of the molding cavity. According to the present invention, when the molten plastic enters the interior of the rotating cylinder through a lower cylinder, it will flow to the top of the molding cavity through the centrifugal force of the conical rotating disk, and due to the fluidity of the molten plastic itself and the extrusion of a lower pressing block driven to rise and fall, the molten plastic enters the interior of the molding cavity to form a square shape, and is cut into particles by a driven rotating cutter head, so that the square-shaped plastic can be packed more tightly when placed, and the gap between the plastic particles can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of granulation, in particular to a polyvinyl chloride plastic granulator. Background Art

[0002] Granulator is a kind of equipment that processes plastic or other materials into granules. It is widely used in plastic recycling and production process. It converts large pieces or waste materials into uniform granules through steps such as crushing, cutting, mixing, cooling and sorting. These granules can be used for further processing or directly used as raw materials.

[0003] Existing granulators usually cut plastic into round granules during use, so that when packaging, there will be gaps between the granular plastics, and the gaps between the particles occupy more space, which will reduce the loading amount of the particles during packaging and loading. In the process of cooling and cutting the granules, the molten plastic will be refrigerated and shaped, and the plastic will adhere to the mold during solidification. For example, a centrifugal high-efficiency plastic granulator for recycling waste plastics and a method of use disclosed in CN114393738B. The polyhedral square particles produced by the device can effectively reduce the space occupied by the gaps between the particles, but the device cannot adjust the cooling efficiency during the cooling of the plastic, so there is no way to judge whether the plastic is cooled and solidified during discharging. After cutting or leaving the mold, the plastic particles cannot form the ideal state described above, and the plastic adhesion problem is usually more obvious during the cooling and solidification of the plastic during the injection molding process, because the plastic may produce more friction and adhesion with the mold during solidification. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a polyvinyl chloride plastic granulator, which can effectively solve the problem in the prior art that there is no way to judge whether the plastic has been cooled and solidified when it is discharged, and the plastic particles cannot form the ideal state after cutting or separating from the mold.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a polyvinyl chloride plastic granulator, comprising:

[0007] Injection molding cylinder,

[0008] An injection assembly, the injection assembly includes a molding cavity opened in a circumferential array on the inner wall of an injection molding cylinder, the molding cavity is arranged in a square shape, a conical rotating disk is arranged at an upper position of the inner wall of the injection molding cylinder, the conical rotating disk is driven to rotate at an upper position of the inner wall of the injection molding cylinder, a second spring is fixedly installed at the inner bottom end of the molding cavity, a first slider is fixedly installed at the upper end of the second spring, and the lower end of the second spring is fixed to the inner bottom end of the molding cavity;

[0009] It also includes a cooling and cutting component, which includes a cooling ring pipe. The cooling ring pipe is fixedly installed on the inner wall of the injection cylinder and below the liquid flow ring pipe. The cooling ring pipe is filled with cooling water. The flow rate of the cooling water is driven to accelerate. An external rubber ring pipe is sleeved on the outer wall of the injection cylinder and below the liquid flow ring pipe. A discharge port is opened in a circumferential array inside the injection cylinder. The external rubber ring pipe is connected to the molding cavity through the discharge port.

[0010] Preferably, a rotating cylinder is rotatably installed on the upper end of the injection cylinder, an annular limiting ring is fixedly installed at an upper position of the outer wall of the injection cylinder, the inner wall of the annular limiting ring is rotatably connected to the rotating cylinder, a feeding cylinder is embedded in the rotating cylinder, a plurality of connecting rods are fixedly installed on the lower end surface of the feeding cylinder, a plurality of connecting rods are fixedly connected to the upper end surface of the conical rotating disk, a discharge gap is formed between the plurality of connecting rods, a heating rod is fixedly installed in the conical rotating disk, the heating rod is connected to an external power supply, and a lower pressure block driven to rise and fall is slidably installed on the inner wall of the rotating cylinder.

[0011] Preferably, the outer wall of the lower pressure block is fixedly installed with multiple external brackets, the upper position of the external bracket is sleeved with a first sealing slide, the first sealing slide is air-tightly slidably connected to the outer wall of the rotating cylinder, and multiple support brackets are fixedly installed at the lower position of the outer wall of the rotating cylinder, the upper end surface of the support bracket is fixedly installed with a first sliding rod, and the first sliding rod penetrates the external bracket and extends above it, the outer wall of the first sliding rod is sleeved with a first spring, the two ends of the first spring are respectively fixed to the external bracket and the support bracket, the outer wall of the injection molding cylinder and a guide ring are fixedly installed below the annular limit ring, the outer wall of the guide ring is provided with a sliding groove, the external bracket is rotatably installed with a guide rod at a lower position on one side close to the axis line of the injection molding cylinder, the guide rod is slidably connected to the sliding groove, and the lower end surfaces of the multiple external brackets are commonly fixed with a connecting ring.

[0012] Preferably, a support plate is fixedly installed at the middle position of the inner wall of the injection molding cylinder, a first driving source is fixedly installed on the lower end surface of the support plate, an output end of the first driving source passes through the first driving source and is fixedly connected to a rotating disk, the rotating disk consists of a circular disk and a short shaft fixed to the upper end of the circular disk, a circular rotating rail is fixedly installed on the inner wall of the injection molding cylinder and above the support plate, the circular disk is rotatably connected to the inner wall of the circular rotating rail, a sealing plate is fixedly installed on the upper end of the short shaft, and the sealing plate is fixedly connected to the lower end surface of the conical rotating disk.

[0013] Preferably, the cooling and cutting assembly also includes a discharge port, which is opened at a lower position of the outer wall of the injection molding cylinder, and a second driving source is fixedly installed on the lower end surface of the injection molding cylinder, and an output end of the second driving source passes through the injection molding cylinder and is fixedly connected to a second rotating column, and the second rotating column is rotatably connected to the inner bottom end of the injection molding cylinder, and a support rod is installed in a circumferential array at an upper position of the outer wall of the second rotating column, and a cutter head is fixedly installed at one end of the support rod away from the axial center line of the second rotating column, and the cutter head is rotatably connected to the lower position of the inner wall of the injection molding cylinder, and the injection molding cylinder and at the discharge port are connected to the second rotating column. A plurality of liquid flow grooves are provided in a circular array above, two liquid flow annular tubes are sleeved on the inner and outer walls of the injection cylinder and above the discharge port, the two liquid flow annular tubes are connected through the liquid flow grooves, at least one first liquid outlet is provided between the molding cavity and the liquid flow grooves, at least one second liquid outlet is provided between the molding cavity and the liquid flow annular tube, a liquid inlet pipe is connected to the outer wall of the liquid flow annular tube, rubber plugs are slidably installed on both sides of the inner wall of the molding cavity near the liquid flow grooves, trigger sensing elements are symmetrically installed on the inner wall of the molding cavity and below the discharge port, and the trigger sensing elements are connected to the second driving source signal.

[0014] Preferably, the outer wall of the cooling ring pipe is fixedly connected to a water outlet box and a water inlet box through a connecting pipe that penetrates the injection molding cylinder, and slide rails are fixedly installed on both sides of the inner walls of the water outlet box and the water inlet box, and a sliding plug is slidably installed on the inner wall of the slide rail, and a connecting block is fixedly installed at the lower position of the outer wall of the sliding plug, the connecting block penetrates the water outlet box and the water inlet box and is fixedly connected with a stopper, and a second sealing slide plate is provided on the outer side of the connecting block, and the second sealing slide plate is air-tightly slidably connected to the lower end surfaces of the water outlet box and the water inlet box.

[0015] Preferably, it also includes an air jet unloading component, which includes an air injection bag, which is sleeved at a lower position on the outer wall of the injection molding cylinder, the interior of the air injection bag is driven to be filled with gas, and a plurality of air outlet valves are installed in a circular array on the inner circumference of the air injection bag, and the plurality of air outlet valves correspond to the discharge ports one by one, and a support ring plate is fixedly installed on the lower end surface of the injection molding cylinder, and two L-shaped brackets are symmetrically installed on the outer circumference of the support ring plate, and a slide groove is opened in the two support ring plates, and a second slide bar is fixedly installed in the slide groove, and a second slider is slidably installed on the outer wall of the second slide bar, and the second slider is slidably connected to the slide groove, and the first The outer wall of the two sliding rods is sleeved with a fourth spring, and two ends of the fourth spring are respectively fixed to the L-shaped bracket and the second sliding block, a lower pressure plate is fixedly installed on the side of the second sliding block away from the L-shaped bracket, and a support plate is fixedly installed on the side of the L-shaped bracket close to the axis line of the injection molding cylinder, a corrugated airbag is fixedly installed between the lower pressure plate and the support plate, a one-way valve connected to the corrugated airbag is embedded in the lower pressure plate, the lower end of the corrugated airbag is connected to a connecting pipe and the connecting pipe passes through the support plate and is connected to the injection airbag, a check valve is fixedly installed in the connecting pipe, and a linkage support rod is fixedly installed on the upper end surface of the lower pressure plate, and the upper end of the linkage support rod can contact with the connecting ring.

[0016] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0017] First, through the setting of the discharge port and the external rubber ring tube, when the plastic is not completely cooled, the plastic will flow into the external rubber ring tube through the discharge port to expand the external rubber ring tube. While expanding, the extrusion drive increases the gap between each sliding plug and the flow port in the water inlet and the water outlet, thereby increasing the water inlet and water outlet, and increasing the flow rate and flow speed of the cooling water. The cooling water with faster flow rate and flow rate will improve the cooling efficiency and accelerate the cooling effect of the plastic to solidify the plastic.

[0018] Second, the release agent is delivered to the inside of the liquid ring tube through an external infusion pump, so that the release agent flows out from the first liquid outlet and the second liquid outlet to the inner wall of the molding cavity, and contacts and mixes with the plastic moving in the molding cavity, so as to avoid the plastic from sticking to the molding cavity during the subsequent refrigeration process of the plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic cross-sectional structural diagram of the injection assembly of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the injection assembly of the present invention;

[0023] Figure 4 It is a schematic cross-sectional structural diagram of the cooling and cutting assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the cutter head of the present invention;

[0025] Figure 6 for Figure 4 Schematic diagram of the local structure at A in the middle;

[0026] Figure 7 for Figure 4 Schematic diagram of the local structure at B in the middle;

[0027] Figure 8 It is a schematic diagram of the internal structure of the water outlet box of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the jet unloading assembly of the present invention.

[0029] 1. Injection molding cylinder; 2. Injection assembly; 201. Molding cavity; 202. Rotating cylinder; 203. Unloading cylinder; 204. Support plate; 205. First rotating column; 206. First driving source; 207. Rotating disk; 208. Circular rotating rail; 209. Sealing plate; 210. Conical rotating disk; 211. Connecting support rod; 212. Heating rod; 213. External bracket; 214. First sealing slide plate; 215. Support frame; 216. Annular limiting ring; 217. Guide ring; 218. Guide rod; 219. First slide bar; 220. First spring; 221. Second spring; 222. First slide bar; 223. Lower pressing block; 224. Connecting ring; 3. Cooling and cutting assembly; 301. Liquid flow ring; 302. Liquid trough; 303. First liquid outlet; 304. Second liquid outlet 305, liquid inlet pipe; 306, cooling ring pipe; 307, discharge port; 308, rubber plug; 309, discharge port; 310, external rubber ring pipe; 311, water outlet box; 312, water inlet box; 313, slide rail; 314, sliding plug; 315, connecting block; 316, stopper; 317, second driving source; 318, second rotating column; 319, support rod; 320, cutter head; 3 21. trigger sensing element; 322. water pipe; 4. jet unloading assembly; 401. air bag; 402. support ring plate; 403. L-shaped bracket; 404. second slide bar; 405. fourth spring; 406. second slide bar; 407. lower pressure plate; 408. one-way valve; 409. support plate; 410. corrugated air bag; 411. connecting pipe; 412. air outlet valve; 413. linkage support rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] Example: Refer to Figures 1 to 9 , a polyvinyl chloride plastic granulator, comprising:

[0033] Injection cylinder 1,

[0034] The injection assembly 2 includes a molding cavity 201 provided in a circumferential array on the inner wall of the injection molding cylinder 1. The molding cavity 201 is set in a square shape. A conical rotating disk 210 is provided at the upper position of the inner wall of the injection molding cylinder 1. The conical rotating disk 210 is driven to rotate at the upper position of the inner wall of the injection molding cylinder 1. A second spring 221 is fixedly installed at the inner bottom end of the molding cavity 201. A first slider 222 is fixedly installed at the upper end of the second spring 221. The lower end of the second spring 221 is fixed to the inner bottom end of the molding cavity 201. When the conical rotating disk 210 rotates, the plastic is evenly transported to each molding cavity 201 by centrifugal force.

[0035] It also includes a cooling and cutting component 3, which includes a cooling ring tube 306. The cooling ring tube 306 is fixedly installed on the inner wall of the injection cylinder 1 and below the liquid flow ring tube 301. The cooling ring tube 306 is filled with cooling water, and the flow rate of the cooling water is driven to accelerate. An external rubber ring tube 310 is sleeved on the outer wall of the injection cylinder 1 and below the liquid flow ring tube 301. A discharge port 309 is opened in a circumferential array in the injection cylinder 1. The external rubber ring tube 310 is connected to the molding cavity 201 through the discharge port 309. Through the setting of the cooling and cutting component 3, the plastic can be cooled and solidified while the ossification degree of the plastic is detected, so as to avoid the plastic not meeting the shape standard when being cut and discharged.

[0036] Reference Figures 2 to 3 A rotating cylinder 202 is rotatably installed on the upper end of the injection cylinder 1, and an annular limiting ring 216 is fixedly installed at the upper position of the outer wall of the injection cylinder 1. The inner wall of the annular limiting ring 216 is rotatably connected to the rotating cylinder 202. A discharge cylinder 203 is embedded in the rotating cylinder 202, and a plurality of connecting rods 211 are fixedly installed on the lower end surface of the discharge cylinder 203. The plurality of connecting rods 211 are fixedly connected to the upper end surface of the conical rotating disk 210, and a discharge gap is formed between the plurality of connecting rods 211. A heating rod 212 is fixedly installed in the conical rotating disk 210, and the heating rod 212 is connected to an external power supply. A lower pressing block 223 driven to rise and fall is slidably installed on the inner wall of the rotating cylinder 202. The plastic will be separated when flowing in the discharge gap to reduce bubbles in the plastic.

[0037] Reference Figures 2 to 3The outer wall of the lower pressing block 223 is fixedly mounted with a plurality of external brackets 213, and a first sealing slide plate 214 is sleeved at the upper position of the external bracket 213. The first sealing slide plate 214 is in airtight sliding connection with the outer wall of the rotating cylinder 202, and a plurality of support frames 215 are fixedly mounted at the lower position of the outer wall of the rotating cylinder 202. A first slide bar 219 is fixedly mounted on the upper end surface of the support frame 215, and the first slide bar 219 penetrates the external bracket 213 and extends above it. The outer wall of the first slide bar 219 is sleeved with a first spring 220, and the two ends of the first spring 220 are respectively connected to the external bracket 213. The bracket 213 and the support frame 215 are fixed to each other, and a guide ring 217 is fixedly installed on the outer wall of the injection cylinder 1 and below the annular limit ring 216. A slide groove is opened on the outer wall of the guide ring 217. A guide rod 218 is rotatably installed at a lower position on the side of the external bracket 213 close to the axis line of the injection cylinder 1. The guide rod 218 is slidably connected to the slide groove. A connecting ring 224 is fixedly installed on the lower end surfaces of multiple external brackets 213. The highest end and the lowest end of the slide groove are different in height. When the guide rod 218 slides inside the slide groove, it will rise and fall with the different heights in the slide groove.

[0038] Reference Figure 2 A support plate 204 is fixedly installed at the middle position of the inner wall of the injection molding cylinder 1, and a first driving source 206 is fixedly installed on the lower end surface of the support plate 204. The output end of the first driving source 206 passes through the first driving source 206 and is fixedly connected to a rotating disk 207. The rotating disk 207 consists of a circular disk and a short shaft fixed to the upper end of the circular disk. A circular rotating rail 208 is fixedly installed on the inner wall of the injection molding cylinder 1 and above the support plate 204. The circular disk is rotatably connected to the inner wall of the circular rotating rail 208. A sealing plate 209 is fixedly installed on the upper end of the short shaft. The sealing plate 209 is fixedly connected to the lower end surface of a conical rotating disk 210. The conical rotating disk 210 will drive the plastic at the top to rotate during the rotation, and the plastic will flow to the surroundings due to the centrifugal force of the conical rotating disk 210.

[0039] Reference Figures 4 to 7The cooling and cutting assembly 3 also includes a discharge port 307, which is arranged at a lower position of the outer wall of the injection molding cylinder 1, and a second driving source 317 is fixedly installed on the lower end surface of the injection molding cylinder 1, and the output end of the second driving source 317 passes through the injection molding cylinder 1 and is fixedly connected to a second rotating column 318, and the second rotating column 318 is rotatably connected to the inner bottom end of the injection molding cylinder 1, and a support rod 319 is installed in a circumferential array at an upper position of the outer wall of the second rotating column 318, and a cutter head 320 is fixedly installed at one end of the support rod 319 away from the axis of the second rotating column 318, and the cutter head 320 is rotatably connected to the lower position of the inner wall of the injection molding cylinder 1, and a plurality of liquid passing grooves 302 are arranged in a circumferential array above the discharge port 307 in the injection molding cylinder 1, and two liquid flow ring pipes 301 are sleeved on the inner and outer walls of the injection molding cylinder 1 and above the discharge port 307. The tube 301 is connected through the liquid groove 302, at least one first liquid outlet 303 is provided between the molding cavity 201 and the liquid groove 302, at least one second liquid outlet 304 is provided between the molding cavity 201 and the liquid flow ring tube 301, the outer wall of the liquid flow ring tube 301 is connected with a liquid inlet pipe 305, rubber plugs 308 are slidably installed on both sides of the inner wall of the molding cavity 201 close to the liquid groove 302, and trigger sensing elements 321 are symmetrically installed on the inner wall of the molding cavity 201 and below the discharge port 307. The trigger sensing element 321 is connected to the second driving source 317 by signal. When the first slider 222 slides downward inside the molding cavity 201, it contacts the trigger sensing element 321 and triggers the sensing element 321, and sends a signal to the second driving source 317, and the second driving source 317 drives the second rotating column 318 to rotate step by step.

[0040] Reference Figures 7 and 8 The outer wall of the cooling ring pipe 306 passes through the injection molding cylinder 1 through a connecting pipe and is fixedly connected with a water outlet box 311 and a water inlet box 312. Both sides of the inner walls of the water outlet box 311 and the water inlet box 312 are fixedly installed with slide rails 313. The inner wall of the slide rail 313 is slidably installed with a sliding plug 314. A connecting block 315 is fixedly installed at the lower position of the outer wall of the sliding plug 314. The connecting block 315 passes through the water outlet box 311 and the water inlet box 312 and is fixedly connected with a stopper 316. The outer side of the connecting block 315 is sleeved with a second sealing slide plate. The second sealing slide plate is airtightly slidably connected to the lower end surfaces of the water outlet box 311 and the water inlet box 312. The water outlet box 311 and the water inlet box 312 respectively transport cooling water to the cooling ring pipe 306 and discharge cooling water. When the cooling water circulates, the temperature of the plastic will be reduced and the plastic will be solidified and formed.

[0041] Reference Fig. 9, also includes an air jet unloading component 4, the air jet unloading component 4 includes an air injection bag 401, the air injection bag 401 is sleeved at the lower position of the outer wall of the injection cylinder 1, the interior of the air injection bag 401 is driven to be filled with gas, and a plurality of air outlet valves 412 are installed in a circular array on the inner circumference of the air injection bag 401, and the plurality of air outlet valves 412 correspond to the discharge port 307 one by one. A support ring plate 402 is fixedly installed on the lower end surface of the injection cylinder 1, and two L-shaped brackets 403 are symmetrically installed on the outer circumference of the support ring plate 402. A slide groove is opened in the two support ring plates 402, and a second slide bar 404 is fixedly installed in the slide groove. A second slider 406 is slidably installed at the upper position of the outer wall of the second slide bar 404, and the second slider 406 is slidably connected to the slide groove. The outer wall of the second slide bar 404 is sleeved with a fourth spring 405, and the two ends of the fourth spring 405 are respectively connected to the L-shaped bracket 403 and the second slider 406 are fixed, a lower pressure plate 407 is fixedly installed on the side of the second slider 406 away from the L-shaped bracket 403, a support plate 409 is fixedly installed on the side of the L-shaped bracket 403 close to the axis line of the injection molding cylinder 1, a corrugated airbag 410 is fixedly installed between the lower pressure plate 407 and the support plate 409, a one-way valve 408 connected to the corrugated airbag 410 is embedded in the lower pressure plate 407, the lower end of the corrugated airbag 410 is connected to a connecting pipe 411 and the connecting pipe 411 passes through the support plate 409 and is connected to the injection airbag 401, a check valve is fixedly installed in the connecting pipe 411, a linkage support rod 413 is fixedly installed on the upper end surface of the lower pressure plate 407, the upper end of the linkage support rod 413 can contact with the connecting ring 224, the injection airbag 401 will be driven to expand, and the cut plastic will be blown into the discharge port by the air ejected by the air outlet valve 412 for subsequent unified collection.

[0042] The working principle of the present invention is as follows:

[0043] By pouring the molten plastic from the lower barrel 203, the plastic will flow through the lower barrel 203 to the upper end surface of the conical rotating disk 210. By the setting of the heating rod 212, the plastic entering the upper end surface of the conical rotating disk 210 will be continuously heated and kept warm to maintain a molten state. By turning on the first driving source 206, the first rotating column 205, the rotating disk 207, and the conical rotating disk 210 are driven to rotate. The conical rotating disk 210 will drive the molten plastic on the upper end surface to rotate during the process of being driven to rotate. The rotation of the plastic will flow through the discharge gap to the top of the molding cavity 201 through the centrifugal force of the rotation of the conical rotating disk 210. When the plastic passes through the discharge gap, the plastic will be divided by the connecting support rod 211 to prevent large bubbles in the plastic from flowing into the molding cavity 201. When the shaped rotating disk 210 is driven to rotate, it will drive the unloading cylinder 203 and the rotating cylinder 202 to rotate through the connecting support rod 211. When the rotating cylinder 202 is driven to rotate, it will drive the guide rod 218 to rotate through the external bracket 213. While being driven to rotate, the guide rod 218 will slide inside the slide slot. The highest end and the lowest end of the slide slot are at different heights. When the guide rod 218 slides inside the slide slot, it will rise and fall with the height difference in the slide slot. In this way, the guide rod 218 will simultaneously drive the external bracket 213 and the lower pressing block 223 to rise and fall, and compress the first spring 220 on the outer wall of the first sliding rod 219. The lower pressing block 223 will rise and fall in the rotating cylinder 202, and squeeze the plastic that flows to the top of the molding cavity 201 into the molding cavity 201.

[0044] It should be noted that when the plastic flows to the top of the molding cavity 201 by the centrifugal force of the rotating conical rotating disk 210, the fluidity of the molten plastic will automatically flow into the molding cavity 201, and the internal shape of the molding cavity 201 is a square. The plastic will form a square when entering the molding cavity 201, and when the plastic flows to the lower position of the molding cavity 201, the plastic will be cooled and solidified, and the lower pressing block 223 will continuously squeeze the plastic downward above the molding cavity 201, so that the plastic will continuously move inside the molding cavity 201;

[0045] When the plastic enters the molding cavity 201 and continuously moves downward, the mold release agent is transported to the liquid ring tube 301 through the external infusion pump. The mold release agent will flow through the liquid groove 302 inside the liquid ring tube 301 and flow to the inner wall of the molding cavity 201 through the first liquid outlet 303 and the second liquid outlet 304. When the plastic moves downward on the inner wall of the molding cavity 201, it will be mixed with the mold release agent.

[0046] As the plastic continuously moves downward in the molding cavity 201, the bottom end of the plastic will contact the first slider 222 and drive the first slider 222 to compress the second spring 221 through the downward pressure. In the process of pressing down the first slider 222, the bottom end of the plastic will also be compressed and molded into a plane. As the first slider 222 is continuously driven to move downward in the molding cavity 201, the lower end of the first slider 222 will contact the rubber plug 308. The rubber plug 308 will form a resistance to hinder the first slider 222 from moving downward. The cooling water flowing in the cooling ring 306 will cool down the plastic moving in the molding cavity 201. When the plastic is not cooled by the cooling water, When the temperature is lowered and solidified, the plastic will stop moving downward due to the obstruction of the rubber plug 308 and will flow to the inside of the external rubber ring tube 310 through the discharge port 309, and will be continuously injected into the inside of the external rubber ring tube 310 to expand the external rubber ring tube 310. The expanded external rubber ring tube 310 will push the stopper 316 to drive the connecting block 315 and the sliding plug 314 to move inside the slide rail 313, so that the gap between each sliding plug 314 and the circulation port in the water inlet box 312 and the water outlet box 311 is increased, so that the water inlet and water outlet are increased, and the flow rate and flow speed of the cooling water are accelerated. The cooling water with accelerated flow rate and flow rate will improve the cooling efficiency and accelerate the plastic The cooling effect of the material solidifies the plastic, and the solidified plastic stops at the discharge port 309 and is transported to the outside rubber ring tube 310. The lower pressing block 223 continuously squeezes the plastic downward above the molding cavity 201, and while the solidified plastic moves downward, the plastic breaks at the position inside the discharge port 309 and slides downward (the diameter of the plastic flowing from the discharge port 309 to the outside rubber ring tube 310 is small, so the pressure of the plastic moving downward inside the molding cavity 201 can break it, avoiding hindering the overall plastic from moving downward in the molding cavity 201), and squeezes the rubber plug 308, so that the rubber plug 308 is 8 retracts to the inside of the molding cavity 201 and is flush with the inner wall of the molding cavity 201, and then the first slider 222 slides downward in the molding cavity 201 to contact and trigger the trigger sensing element 321. After being triggered, the trigger sensing element 321 transmits a signal to the second driving source 317, and the second driving source 317 drives the second rotating column 318 to perform step rotation. During the step rotation process, the second rotating column 318 drives the cutter head 320 to perform step rotation through the support rod 319, so that the cutter head 320 can cut the plastic solidified in the inner wall of the molding cavity 201 (as shown in the jet blanking component 4 in the figure);

[0047] It should be noted that the water inlet box 312 and the water outlet box 311 can transport the refrigerated cooling water to the cooling ring tube 306 through the water pipe 322 and the external water pump. When the connecting block 315 is driven to move inside the water inlet box 312 and the water outlet box 311, the second sealing slide plate is set to prevent the cooling water from flowing out. The plastic entering the outer rubber ring tube 310 will be cooled by the natural temperature and solidified inside the outer rubber ring tube 310. Therefore, the outer rubber ring tube 310 will continue to expand and squeeze the stopper 316 to adjust the water output of the water inlet box 312 and the water outlet box 311. After the overall cutting of the plastic is completed, the plastic inside the outer rubber ring tube 310 can be recycled for recycling.

[0048] When the external bracket 213 is driven to rise and fall, the connecting ring 224 will be driven to rise and fall together. When the connecting ring 224 is driven to rise and fall, the linkage support rod 413 will be driven to rise and fall. When the linkage support rod 413 is driven to rise and fall, the lower pressure plate 407 and the second slider 406 will compress the corrugated airbag 410 and the fourth spring 405. When compressing the fourth spring 405, the second slider 406 will slide on the outer wall of the second slider 404. When compressing the corrugated airbag 410, the corrugated airbag 410 will compress the internal air into the interior of the air injection bag 401 through the connecting pipe 411, so that the interior of the air injection bag 401 expands. When the corrugated airbag 410 is not compressed, the external air will flow into the interior of the corrugated airbag 410 from the one-way valve 408, and the air entering the interior of the air injection bag 401 will be stored in the The interior of the corrugated airbag 410 is compressed reciprocatingly, so that the air inside the corrugated airbag 410 is continuously compressed into the interior of the air injection bag 401, and the expanded air injection bag 401 will spray from the air outlet valve 412 to the discharge port 307. When the first slider 222 drives the plastic to slide down to the upper end of the trigger sensing element 321, the air injection bag 401 cannot spray from the air outlet valve 412 to the discharge port 307. After the plastic is cut by the cutter head 320, the cut plastic loses its supporting force and will be blown into the discharge port by the air ejected from the air outlet valve 412 by the air injection bag 401. After the cut plastic is blown into the discharge port, the uncut plastic will slide down again to block the air outlet valve 412, and the air injection bag 401 will be continuously injected with air, so as to blow the cut plastic into the discharge port reciprocatingly, and finally be collected uniformly at the lower end surface of the injection cylinder 1.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A polyvinyl chloride plastic granulator, characterized in that: include: Injection molding barrel (1), An injection assembly (2), the injection assembly (2) comprising a molding cavity (201) arranged in a circular array on the inner wall of an injection molding cylinder (1), the molding cavity (201) being arranged in a square shape, a conical rotating disk (210) being arranged at an upper position of the inner wall of the injection molding cylinder (1), the conical rotating disk (210) being driven to rotate at an upper position of the inner wall of the injection molding cylinder (1), a second spring (221) being fixedly mounted at the inner bottom end of the molding cavity (201), a first sliding block (222) being fixedly mounted at the upper end of the second spring (221), and a lower end of the second spring (221) being fixed to the inner bottom end of the molding cavity (201); The invention also comprises a cooling and cutting assembly (3), wherein the cooling and cutting assembly (3) comprises a cooling ring tube (306), wherein the cooling ring tube (306) is fixedly installed on the inner wall of the injection molding cylinder (1) and below the liquid flow ring tube (301), wherein the interior of the cooling ring tube (306) is filled with cooling water, and the flow rate of the cooling water is driven to be accelerated, wherein an external rubber ring tube (310) is sleeved on the outer wall of the injection molding cylinder (1) and below the liquid flow ring tube (301), wherein an inner circumferential array of the injection molding cylinder (1) is provided with a discharge port (309), and the external rubber ring tube (310) is connected to the molding cavity (201) through the discharge port (309).

2. A polyvinyl chloride plastic granulator according to claim 1, characterized in that: A rotating cylinder (202) is rotatably mounted on the upper end of the injection cylinder (1); an annular limiting ring (216) is fixedly mounted at an upper position on the outer wall of the injection cylinder (1); the inner wall of the annular limiting ring (216) is rotatably connected to the rotating cylinder (202); a discharge cylinder (203) is embedded in the rotating cylinder (202); a plurality of connecting rods (211) are fixedly mounted on the lower end surface of the discharge cylinder (203); the plurality of connecting rods (211) are fixedly connected to the upper end surface of the conical rotating disk (210); a discharge gap is formed between the plurality of connecting rods (211); a heating rod (212) is fixedly mounted in the conical rotating disk (210); the heating rod (212) is externally connected to an external power supply; a lower pressing block (223) driven to rise and fall is slidably mounted on the inner wall of the rotating cylinder (202).

3. A polyvinyl chloride plastic granulator according to claim 2, characterized in that: The outer wall of the lower pressing block (223) is fixedly mounted with a plurality of external brackets (213), and a first sealing slide plate (214) is sleeved at an upper position of the external bracket (213). The first sealing slide plate (214) is airtightly slidably connected to the outer wall of the rotating cylinder (202). A plurality of support frames (215) are fixedly mounted at a lower position of the outer wall of the rotating cylinder (202), and a first sliding rod (219) is fixedly mounted on the upper end surface of the support frame (215). The first sliding rod (219) penetrates the external bracket (213) and extends above it. The outer wall of the first sliding rod (219) is sleeved with A first spring (220), the two ends of which are respectively fixed to an external bracket (213) and a support frame (215); a guide ring (217) is fixedly installed on the outer wall of the injection molding cylinder (1) and below the annular limiting ring (216); a sliding groove is provided on the outer wall of the guide ring (217); a guide rod (218) is rotatably installed at a lower position on one side of the external bracket (213) close to the axis of the injection molding cylinder (1); the guide rod (218) is slidably connected to the sliding groove; a connecting ring (224) is fixedly installed on the lower end surfaces of the plurality of external brackets (213).

4. A polyvinyl chloride plastic granulator according to claim 1, characterized in that: A support plate (204) is fixedly installed at the middle position of the inner wall of the injection molding cylinder (1), and a first driving source (206) is fixedly installed on the lower end surface of the support plate (204). The output end of the first driving source (206) passes through the first driving source (206) and is fixedly connected to a rotating disk (207). The rotating disk (207) consists of a circular disk and a short shaft fixed to the upper end of the circular disk. A circular rotating rail (208) is fixedly installed on the inner wall of the injection molding cylinder (1) and above the support plate (204). The circular disk is rotatably connected to the inner wall of the circular rotating rail (208). A sealing plate (209) is fixedly installed on the upper end of the short shaft. The sealing plate (209) is fixedly connected to the lower end surface of the conical rotating disk (210).

5. A polyvinyl chloride plastic granulator according to claim 1, characterized in that: The cooling and cutting assembly (3) further comprises a discharge port (307), wherein the discharge port (307) is arranged at a lower position of the outer wall of the injection molding cylinder (1), a second driving source (317) is fixedly mounted on the lower end surface of the injection molding cylinder (1), an output end of the second driving source (317) passes through the injection molding cylinder (1) and is fixedly connected to a second rotating column (318), the second rotating column (318) is rotatably connected to the inner bottom end of the injection molding cylinder (1), a support rod (319) is mounted in a circumferential array at an upper position of the outer wall of the second rotating column (318), a cutter head (320) is fixedly mounted at one end of the support rod (319) away from the axis of the second rotating column (318), the cutter head (320) is rotatably connected to the lower position of the inner wall of the injection molding cylinder (1), a plurality of liquid-passing holes are arranged in a circumferential array in the injection molding cylinder (1) and above the discharge port (307). The molding cavity (201) is provided with a groove (302), two liquid flow annular tubes (301) are sleeved on the inner and outer walls of the injection molding cylinder (1) and above the discharge port (307), the two liquid flow annular tubes (301) are connected through the liquid through groove (302), at least one first liquid outlet (303) is provided between the molding cavity (201) and the liquid through groove (302), at least one second liquid outlet (304) is provided between the molding cavity (201) and the liquid flow annular tube (301), the outer wall of the liquid flow annular tube (301) is connected with a liquid inlet pipe (305), rubber plugs (308) are slidably installed on both sides of the inner wall of the molding cavity (201) close to the liquid through groove (302), and trigger sensing elements (321) are symmetrically installed on the inner wall of the molding cavity (201) and below the discharge port (307), and the trigger sensing elements (321) are connected to the second driving source (317) by signal.

6. A polyvinyl chloride plastic granulator according to claim 1, characterized in that: The outer wall of the cooling ring pipe (306) passes through the injection molding cylinder (1) through a connecting pipe and is fixedly connected to a water outlet box (311) and a water inlet box (312); both sides of the inner walls of the water outlet box (311) and the water inlet box (312) are fixedly installed with slide rails (313); the inner wall of the slide rail (313) is slidably installed with a sliding plug (314); a connecting block (315) is fixedly installed at a lower position of the outer wall of the sliding plug (314); the connecting block (315) passes through the water outlet box (311) and the water inlet box (312) and is fixedly connected with a stopper (316); the outer side of the connecting block (315) is sleeved with a second sealing slide plate; the second sealing slide plate is airtightly slidably connected to the lower end surfaces of the water outlet box (311) and the water inlet box (312).

7. A polyvinyl chloride plastic granulator according to claim 1, characterized in that: The device also comprises an air jet unloading component (4), wherein the air jet unloading component (4) comprises an air injection bag (401), wherein the air injection bag (401) is sleeved at a lower position of the outer wall of the injection molding cylinder (1), wherein the interior of the air injection bag (401) is driven to be filled with gas, wherein a plurality of air outlet valves (412) are installed in a circular array on the inner circumference of the air injection bag (401), wherein the plurality of air outlet valves (412) correspond to the discharge port (307) one by one, and wherein a support is fixedly installed on the lower end surface of the injection molding cylinder (1). A support ring plate (402), the outer circumference of which is symmetrically provided with two L-shaped brackets (403), a slide groove is provided in the two support ring plates (402), a second slide bar (404) is fixedly provided in the slide groove, a second slider (406) is slidably provided at an upper position of the outer wall of the second slide bar (404), the second slider (406) is slidably connected to the slide groove, a fourth spring (405) is sleeved on the outer wall of the second slide bar (404), The two ends of the fourth spring (405) are respectively fixed to the L-shaped bracket (403) and the second slider (406); a lower pressing plate (407) is fixedly installed on the side of the second slider (406) away from the L-shaped bracket (403); a support plate (409) is fixedly installed on the side of the L-shaped bracket (403) close to the axis of the injection cylinder (1); a corrugated airbag (410) is fixedly installed between the lower pressing plate (407) and the support plate (409); 7) A one-way valve (408) connected to the corrugated airbag (410) is embedded therein, the lower end of the corrugated airbag (410) is connected to a connecting pipe (411) and the connecting pipe (411) passes through the support plate (409) and is connected to the air injection bag (401), a check valve is fixedly installed in the connecting pipe (411), and a linkage support rod (413) is fixedly installed on the upper end surface of the lower pressure plate (407), and the upper end of the linkage support rod (413) can contact the connecting ring (224).

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