A plastic particle sorting device for PE water supply pipe production

Abstract

The present invention relates to the technical field of plastic particle sorting devices, and discloses a plastic particle sorting device for PE water supply pipe production, including a sorting device and a feeding assembly connected to the feeding port of the sorting device, the sorting device and the feeding assembly are both fixed on a supporting base, and cooling structures are provided on the sorting device and the feeding assembly. The device of the present invention sets the outer wall of the feed hopper and the feeding nozzle in the feeding assembly as a hollow structure, and passes circulating cooling water therein to cool down the outer wall, thereby allowing the PE raw material poured by the feeding assembly to be initially cooled; at the same time, an air cooling device is connected to one end of the sorting device, and the air cooled by the pre-cooling water network is forced into the sorting device by the fan inside the air cooling device, thereby cooling the PE particles inside the sorting device, thereby reducing the heat generated during the operation of the entire device by the two cooling structures, and ensuring the normal operation of the sorting device.

Description

Technical Field

[0001] The invention relates to the technical field of plastic particle sorting devices, and in particular to a plastic particle sorting device for producing PE water supply pipes. Background Art

[0002] PE (polyethylene) materials are widely used in the field of water supply pipe manufacturing due to their high strength, corrosion resistance, and non-toxicity. my country's plastic pipes are developing rapidly and their quality is constantly improving. Among them, polyethylene PE pipes are widely used in building water supply, building drainage, buried drainage pipes, etc. due to their unique advantages. The production material of existing PE water supply pipes is polyethylene plastic particles. These PE particles are of different sizes when they are purchased in the early stage, but the PE particles need to be melted first during factory production. However, due to the different sizes of these PE particles, when melting, they often fail to melt completely or the melted processing raw materials have uneven density due to different degrees of melting. Therefore, it is difficult to grasp the melting time of PE particles, which is prone to waste fuel or incomplete melting that affects the quality of the finished pipe. Therefore, according to the above problems, it is necessary to further sort the PE particles through a plastic particle sorting machine to ensure the uniformity of the PE particles for convenient processing.

[0003] However, the existing sorting device is not equipped with a corresponding cooling device. During the sorting process of PE particles, the heat generated by the long-term operation of the equipment and the heat generated by the friction between the PE particles will cause the heat inside the sorting device to rise sharply. The high temperature inside will cause the PE particles entering therein to partially melt due to the heat, so that the outer side of the PE particles has a certain viscosity, which makes it easy for the PE particles to stick to each other or to the screening net, thereby affecting the screening effect and screening efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a plastic particle sorting device for PE water supply pipe production, which can prevent the temperature inside the sorting device from rising and causing partial melting of the PE particles inside.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A plastic particle sorting device for PE water supply pipe production comprises a sorting device and a feeding assembly connected to a feeding port of the sorting device, wherein the sorting device and the feeding assembly are both fixedly arranged on a supporting base, and is characterized in that a cooling structure is provided on the sorting device and the feeding assembly.

[0007] In the present invention, further, the feeding assembly includes a feeding hopper, a stirring assembly and a feeding nozzle, the stirring assembly is fixed above the feeding hopper, one end of the feeding nozzle is fixedly arranged at the bottom of the feeding hopper, and the other end of the feeding nozzle is movably connected to the sorting device.

[0008] In the present invention, further, the outer walls of the feed hopper and the feeding nozzle are both configured as hollow outer walls, and cooling water circulates into the interior of the outer walls.

[0009] In the present invention, further, the stirring assembly includes a driving motor and an auger, the auger is rotatably connected to the driving motor and the bottom of the feed hopper, and a gap is provided between the bottom of the lowest blade of the auger and the bottom of the feed hopper.

[0010] In the present invention, further, one end of the feeding nozzle connected to the sorting device is configured as a flat outlet.

[0011] In the present invention, further, the sorting device includes a lower shock bin, an upper pressure cover, multiple groups of vibration motors and an air cooling device. The upper pressure cover is fixedly arranged on the upper part of the lower shock bin, and the multiple groups of vibration motors are fixedly arranged on the lower shock bin. The air cooling device is movably connected to one side end of the lower shock bin, and the upper pressure cover is provided with multiple groups of air outlet pipes.

[0012] In the present invention, further, a plurality of groups of screening nets are fixedly arranged inside the lower shock bin, and the mesh diameters of the plurality of groups of screening nets gradually decrease from top to bottom.

[0013] In the present invention, further, one end of the lower shock bin away from the air cooling device is connected to a plurality of groups of discharge barrels, and each group of the discharge barrels is respectively connected to a plurality of groups of sorting chambers divided by the screening net.

[0014] In the present invention, further, the air cooling device includes a fan, a pre-cooling water network and an outer shell, the pre-cooling water network is fixedly arranged on one side of the air inlet inside the outer shell, cooling water circulates in the pre-cooling water network, and the fan is arranged between the air outlet of the outer shell and the pre-cooling water network.

[0015] In the present invention, further, the sorting device is connected to multiple groups of support columns on the support base through springs, and the support column close to one end of the discharge barrel is a lifting support column.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The device of the present invention sets the outer walls of the feed hopper and the feed nozzle in the feed component as a hollow structure, and passes circulating cooling water therein to cool the outer walls, thereby allowing the PE raw material poured from the feed component to be initially cooled; at the same time, an air cooling device is connected to one end of the sorting device, and the air cooled by the pre-cooling water network is forced into the sorting device by the fan inside the air cooling device, thereby cooling the PE particles inside the sorting device. The two cooling structures reduce the heat generated when the entire device is running, thereby ensuring the normal operation of the sorting device.

[0018] In addition, a stirring assembly is provided above the feed hopper. The rotation of the auger in the stirring assembly can make the PE particles in the middle of the feed hopper be driven to the top of the auger and then scattered into the feed hopper. In this process, the PE particles in the feed hopper will form an internal and external circulation, so that the PE particles in the middle will constantly exchange positions with the PE particles near the outer wall of the feed hopper, so that the PE particles in the feed hopper can be cooled more fully.

[0019] At the same time, the support column on the support base located on the side close to the discharge barrel is set as a liftable support column, thereby adjusting the inclination angle of the sorting device to achieve the adjustment of the discharge speed after sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the partial cross-section structure of the feed assembly in the present invention.

[0022] Figure 3 This is a schematic diagram of the cross-section structure of the lower shock bin.

[0023] Figure 4 This is a schematic diagram of the decomposed structure in the lower shock bin.

[0024] Figure 5 This is a schematic cross-sectional view of the internal structure of the air cooling device.

[0025] In the attached drawings: 10, feed hopper; 101, connecting plate; 11, stirring assembly; 111, driving motor; 112, auger; 12, feeding nozzle; 20, upper pressure cover; 201, observation window; 202, filter screen; 203, air outlet tube; 21, lower shock bin; 211, discharge tube; 212, sorting chamber; 213, screening net; 214, cold air chamber; 215, baffle plate; 216, feed port; 22, lock; 23, vibration motor; 30, air cooling device; 301, outer shell; 302, pre-cooling water net; 303, water injection port; 304, water outlet; 305, air inlet; 306, fan; 307, air outlet; 40, support base; 401, support column; 402, spring; 403, hydraulic station; 50, splash screen. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] Please also see Figures 1 to 5A preferred embodiment of the present invention provides a plastic particle sorting device for PE water supply pipe production, including a sorting device and a feeding assembly connected to the feeding port 216 of the sorting device, the sorting device and the feeding assembly are fixedly arranged on the support base 40, characterized in that a cooling structure is arranged on the sorting device and the feeding assembly. The cooling structure arranged on the sorting device and the feeding assembly is used to reduce the temperature of the PE particles entering the present invention for sorting and the temperature of the working environment in which they are located, so as to prevent the PE particles from being partially melted due to excessive temperature.

[0030] The feeding assembly includes a feeding hopper 10, a stirring assembly 11 and a feeding nozzle 12. The stirring assembly 11 is fixed above the feeding hopper 10. One end of the feeding nozzle 12 is fixedly arranged at the bottom of the feeding hopper 10. The fixing method includes but is not limited to the method of screw fastening. The other end of the feeding nozzle 12 can be movably connected to the sorting device through a cloth barrel. After the feeding nozzle 12 is connected to the sorting device through the cloth barrel, the influence of vibration on the feeding nozzle 12 during the vibration sorting operation of the sorting device can be eliminated.

[0031] The stirring assembly 11 can drive the PE particles in the middle of the feed hopper 10 to the top of the auger 112 and then scatter into the inside of the feed hopper 10. In this process, the PE particles in the feed hopper 10 will form an internal and external circulation, so that the PE particles in the middle will continuously exchange positions with the PE particles located near the outer wall of the feed hopper 10, so that the PE particles in the feed hopper 10 can be cooled more fully.

[0032] A splash screen 50 is fixed at the upper end of the feed hopper 10 to prevent the PE particles from spilling out, and the temperature can also be further reduced by blowing air into the splash screen 50 .

[0033] The outer walls of the feed hopper 10 and the feed nozzle 12 are both hollow outer walls, and cooling water circulates into the inner wall. The inner wall of the hollow outer wall is injected with circulating cooling water provided by an external existing cooling device to control the temperature of the outer walls of the feed hopper 10 and the feed nozzle 12, so as to reduce the temperature of the PE particles during the feeding process. A connecting plate 101 is welded on the outer wall of the feed hopper 10 for mounting the feed hopper 10.

[0034] The stirring assembly 11 includes a driving motor 111 and an auger 112, the auger 112 is rotatably connected to the driving motor 111 and the bottom of the feed hopper 10, and a gap is set between the bottom of the lowest blade of the auger 112 and the bottom of the feed hopper 10. The upper end of the auger 112 can be connected to the output shaft of the motor through a coupling or a sleeve and a key, thereby realizing the driving of the auger 111 to the auger 112, and at the same time, the bottom of the auger 112 is rotatably connected to the bottom of the feed hopper 10 through a bearing, thereby connecting the auger 112 between the driving motor 111 and the bottom of the feed hopper 10 to make the fixation of the auger 112 more firmly and reliably, and the bottom of the lowest blade of the auger 112 is set at a distance from the bottom of the feed hopper 10 to facilitate discharging.

[0035] One end of the feeding nozzle 12 connected to the sorting device is set as a flat outlet, such as an elliptical outlet. This structural form is to allow more PE particles to contact the outer wall of the feeding nozzle 12 during the feeding process as the feeding nozzle 12 gradually becomes flat, thereby improving the cooling effect of the PE particles.

[0036] The sorting device includes a lower shock bin 21, an upper pressure cover 20, multiple groups of vibration motors 23 and an air cooling device 30. The upper pressure cover 20 can be fixedly arranged on the upper part of the lower shock bin 21 by a lock 22. The lock 22 facilitates the disassembly and assembly of the upper pressure cover 20, and can facilitate the removal of the upper pressure cover 20 to repair the lower shock bin 21 in the later stage. The multiple groups of vibration motors 23 can be fixed on the lower shock bin 21 by screws in combination with a commonly used anti-loosening structure or welding. The air cooling device 30 is movably connected to one side end of the lower shock bin 21 through a cloth air duct. The upper pressure cover 20 is provided with multiple groups of air outlet ducts 203, and the air outlet duct 203 is padded with a filter screen 202. The vibration of the lower shock bin 21 is achieved by fixing multiple groups of vibration motors 23 on the lower shock bin 21 to facilitate the screening of PE particles in the lower shock bin 21. The vibration motor 23 is a prior art, and its selection method and the installation form determined according to the vibration method to be achieved are common knowledge in this field, and will not be repeated here.

[0037] The upper cover 20 is provided with multiple sets of air outlets 203 on one side away from the air cooling device 30 to facilitate the cooling airflow discharged from the air cooling device 30 to be discharged therefrom after the cooling work is completed, and the air outlets 203 are padded with a filter 202 to filter the discharged gas to prevent the internal dust from being discharged and polluting the working environment. A transparent observation window 201 is also provided on the upper cover 20 to facilitate timely observation of the internal situation.

[0038] Multiple groups of screening nets 213 are fixedly arranged inside the lower shock bin 21, and the mesh diameters of the multiple groups of screening nets 213 gradually decrease from top to bottom. The multiple groups of screening nets 213 divide the internal space of the lower shock bin 21 into multiple sorting chambers 212, and PE particles of different diameters are trapped in different sorting chambers 212 and then discharged by the corresponding discharge barrels 211. The feed port 216 of the lower shock bin 21 is connected to the sorting chamber 212 at the top, and a baffle plate 215 is fixed below the feed port 216 to prevent PE particles or dust particles from falling into the outer wall of the cold air chamber 214 and blocking the ventilation holes during feeding.

[0039] The end of the lower shock bin 21 away from the air cooling device 30 is connected to multiple groups of discharge barrels 211, and each group of discharge barrels 211 is respectively connected to multiple groups of sorting chambers 212 separated by the screening net 213. A cold air chamber 214 is fixedly arranged on one side of the lower shock bin 21 close to the air cooling device 30, and multiple groups of ventilation holes are arranged on the outer wall of the cold air chamber 214. Ventilation holes of different densities are arranged in different areas to ensure uniform output of cold air.

[0040] The air cooling device 30 includes a fan 306, a precooling water network 302 and an outer shell 301. The precooling water network 302 is fixedly arranged on one side of the air inlet 305 inside the outer shell 301. Cooling water is injected into the precooling water network 302 from the water injection port 303 and then discharged from the water outlet 304, so that cooling water circulates in the precooling water network 302. The fan 306 is arranged between the air outlet 307 of the outer shell 301 and the precooling water network 302. After the fan 306 is turned on, it sucks in the external air and then forces it to be discharged into the lower shock bin 21. After the external air enters from the air inlet 305, it will flow through the precooling water network 302 soaked with cooling water, thereby cooling it and then discharging it into the lower shock bin 21 to achieve cooling of the PE particles.

[0041] The sorting device is connected to multiple groups of support columns 401 on the support base 40 through springs 402, and the support column 401 near one end of the discharge barrel 211 is a lifting support column. The inclination of the sorting device is adjusted by adjusting the height of the support column 401, thereby adjusting the discharge speed. This lifting support column can be set as a hydraulic cylinder, and the height is adjusted by raising and lowering the piston end of the hydraulic cylinder. A hydraulic station 403 is fixed on the support base 40 to provide power for the hydraulic cylinder.

[0042] Working principle:

[0043] First, the staff checks that all operating components are in normal condition, and then connects each motor and fan 306 to the external power supply respectively, and then turns on the external cooling water supply equipment to introduce cooling water into the feeding component, and then continuously adds PE particles into the feeding hopper 10, and at the same time turns on the driving motor 111, the vibration motor 23 and the fan 306. The driving motor 111 drives the auger 112 to stir the PE particles in the feeding hopper 10 to speed up the cooling speed. When the PE particles are fed into the sorting device by the feeding nozzle 12, they will be screened under the drive of the vibration motor 23, and finally discharged from the discharge barrel 211. During this process, the fan 306 continuously sends cold air into the lower shock bin 21 to cool the internal PE particles.

[0044] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A plastic particle sorting device for PE water supply pipe production, comprising a sorting device and a feeding assembly connected to a feeding port (216) of the sorting device, wherein the sorting device and the feeding assembly are both fixedly arranged on a supporting base (40), characterized in that: The sorting device and the feeding assembly are both provided with cooling structures; The feeding assembly comprises a feeding hopper (10), a stirring assembly (11) and a feeding nozzle (12), wherein the stirring assembly (11) is fixed above the feeding hopper (10), one end of the feeding nozzle (12) is fixedly arranged at the bottom of the feeding hopper (10), and the other end of the feeding nozzle (12) is movably connected to the sorting device; The stirring assembly (11) comprises a driving motor (111) and an auger (112), wherein the auger (112) is rotatably connected to the driving motor (111) and the bottom of the feed hopper (10), and a gap is provided between the bottom of the lowest blade of the auger (112) and the bottom of the feed hopper (10); The stirring assembly (11) can drive the PE particles in the middle of the feed hopper (10) to the top of the auger (112) and then scatter into the inside of the feed hopper (10). In this process, the PE particles in the feed hopper (10) form an internal and external circulation, so that the PE particles in the middle are constantly exchanged with the PE particles near the outer wall of the feed hopper (10), so that the PE particles in the feed hopper (10) are cooled more fully. The sorting device comprises a lower shock bin (21), an upper pressure cover (20), a plurality of groups of vibration motors (23) and an air cooling device (30); the upper pressure cover (20) is fixedly arranged on the upper part of the lower shock bin (21); the plurality of groups of vibration motors (23) are fixedly arranged on the lower shock bin (21); the air cooling device (30) is movably connected to one side end of the lower shock bin (21); and the upper pressure cover (20) is provided with a plurality of groups of air outlet tubes (203); A plurality of groups of screening nets (213) are fixedly arranged inside the lower shock bin (21), and the mesh diameters of the plurality of groups of screening nets (213) gradually decrease from top to bottom; a plurality of groups of discharge barrels (211) are connected to one end of the lower shock bin (21) away from the air cooling device (30), and each group of the discharge barrels (211) is respectively connected to a plurality of groups of sorting chambers (212) separated by the screening nets (213); the air cooling device (30) comprises a fan (306), a precooling water net (302) and an outer shell (301); the precooling water net (302) is fixedly arranged on one side of an air inlet (305) inside the outer shell (301), and cooling water circulates in the precooling water net (302); the fan (306) is arranged between an air outlet (307) of the outer shell (301) and the precooling water net (302); The outer walls of the feed hopper (10) and the feed nozzle (12) are both configured as hollow outer walls, and cooling water circulates into the inner part of the outer walls; The sorting device is connected to multiple groups of support columns (401) on the support base (40) via springs (402), and the support column (401) close to one end of the discharge barrel (211) is a lifting support column.

2. A plastic particle sorting device for PE water supply pipe production according to claim 1, characterized in that: One end of the feeding nozzle (12) connected to the sorting device is arranged as a flat outlet.

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