Plastic particle processing method and processing equipment

Abstract

The invention relates to the technical field of plastic processing, in particular to a plastic particle processing method and processing equipment. Comprising a barrel body with two discharging ports symmetrically formed in the upper end, a top cover is fixedly connected to the top of the barrel body, a top frame is fixedly connected to the top cover, a column rod is fixedly connected to the top frame, a material barrel located in the barrel body is fixedly connected to the lower end of the column rod, and a plurality of discharging holes are evenly distributed in the lower end of the material barrel in a surrounding mode. The lower end of the core barrel is communicated with a feeding pipe, the extrusion plate is connected in the charging barrel in a sliding manner, a sleeve is fixedly connected to the core part of the extrusion plate, the column rod is connected in the sleeve in a sliding manner, the sleeve is connected with the core barrel in a sliding manner, an electric push rod is fixedly connected between the sleeve and the core barrel, and a spiral scraper is rotatably connected between the barrel body and the charging barrel. The plastic particle dispersing device has the beneficial effects that plastic particles can be dispersed in the circumferential direction in the horizontal plane and float upwards, the adhesion phenomenon among the plastic particles is effectively avoided, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic processing, and more particularly to a plastic particle processing method and processing equipment. Background Art

[0002] Plastic pellet processing is an important part of the plastic production and manufacturing field. It is a semi-finished pellet made by mixing raw materials such as polymer resins with various additives and auxiliaries and processing them through a specific process. The current methods for preparing plastic pellets are mainly thermoplastic extrusion and extrusion molding.

[0003] There are some problems with existing plastic processing methods. The lack of fluidity of plastic particles during processing will affect the molding effect and quality of the product; secondly, due to unreasonable control of factors such as temperature and stirring speed, plastic particles are prone to adhesion during processing, affecting product quality and production efficiency. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a plastic particle processing method and processing equipment, which has the beneficial effect of enabling the plastic particles to be dispersed in a circumferential direction in a horizontal plane and float upward, effectively avoiding adhesion between the plastic particles and improving product quality and production efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A plastic particle processing equipment comprises a cylinder with two discharge ports symmetrically arranged at the upper end, a top cover fixedly connected to the top of the cylinder, a top frame fixedly connected to the top cover, a column fixedly connected to the top frame, a barrel located inside the cylinder at the lower end of the column fixedly connected, a plurality of discharge holes evenly distributed around the lower end of the barrel, a core barrel slidably connected to the top cover and the barrel at the same time, a feed pipe connected to the lower end of the core barrel, an extrusion plate slidably connected to the barrel, a sleeve fixedly connected to the core of the extrusion plate, the column slidably connected in the sleeve, the sleeve and the core barrel are slidably connected, an electric push rod fixedly connected between the sleeve and the core barrel, a spiral scraper rotatably connected between the cylinder and the barrel; a liquid inlet pipe is installed on the top cover.

[0007] The spiral scrapers are arranged in two in a surrounding manner.

[0008] The lower end of the cylinder is rotatably connected to a jet seat, a plurality of jet nozzles are installed on the upper end of the jet seat, the lower ends of the two spiral scrapers are fixedly connected to the jet seat, and the lower end of the jet seat passes through the cylinder and is connected to an air inlet pipe.

[0009] A plurality of ventilation holes are provided on the two spiral scrapers. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0011] Figure 1 A structural schematic diagram of a plastic granule processing device;

[0012] Figure 2 It is a partial cross-sectional structural schematic diagram of the processing equipment;

[0013] Figure 3 It is a cross-sectional structural schematic diagram of the processing equipment;

[0014] Figure 4 It is a schematic diagram of the internal structure of the processing equipment;

[0015] Figure 5 It is a structural schematic diagram of the cylinder;

[0016] Figure 6 It is a schematic diagram of the structure of the barrel;

[0017] Figure 7 It is a structural schematic diagram of the core tube;

[0018] Figure 8 It is a schematic diagram of the structure inside the core tube;

[0019] Fig. 9 It is a structural schematic diagram of an extruded plate;

[0020] Fig.10 It is a schematic diagram of the structure of the core barrel and the extrusion plate;

[0021] Fig.11 It is a schematic diagram of the structure of the barrel and two electric push rods;

[0022] Fig.12 It is a structural schematic diagram of an electric linear actuator;

[0023] Fig.13 It is a schematic diagram of the structure of the core barrel, the barrel and the extrusion plate;

[0024] Fig.14 This is a schematic diagram of the structure of the jet seat.

[0025] In the figure: cylinder 101; discharge port 102; top cover 103; stud 104; top frame 105; column 106; barrel 107; motor 108; gear I 109; core barrel 201; feed pipe 202; dovetail ring 203; electric push rod 204; sleeve 205; extrusion plate 206; jet seat 301; air inlet pipe 302; gear II 303; spiral scraper 304; connecting frame 305; vent 306. DETAILED DESCRIPTION

[0026] like Figures 1 to 13 As shown:

[0027] A plastic particle processing device comprises a cylinder 101 with two discharge ports 102 symmetrically arranged at the upper end, a top cover 103 fixedly connected to the top of the cylinder 101, a top frame 105 fixedly connected to the top cover 103, a column 106 fixedly connected to the top frame 105, a barrel 107 located inside the cylinder 101 fixedly connected to the lower end of the column 106, a plurality of discharge holes evenly distributed around the lower end of the barrel 107, and a core barrel 201 slidably connected to the top cover 103 and the barrel 107 at the same time, and the core barrel 201 is connected to the top cover 103 and the barrel 107 at the same time. The lower end of 201 is connected with a feed pipe 202, and also includes an extrusion plate 206 slidably connected in the barrel 107, the core of the extrusion plate 206 is fixedly connected with a sleeve 205, the column 106 is slidably connected in the sleeve 205, the sleeve 205 and the core barrel 201 are slidably connected, an electric push rod 204 is fixedly connected between the sleeve 205 and the core barrel 201, and a spiral scraper 304 is rotatably connected between the cylinder 101 and the barrel 107; a liquid inlet pipe is installed on the top cover 103;

[0028] The molten plastic is injected into the barrel 107 through the feed pipe 202, and the molten plastic is located between the extrusion plate 206 and the core barrel 201. The salt water is injected into the barrel 101 through the liquid inlet pipe, and the salt water is located in the chamber between the barrel 107 and the barrel 101. The liquid level of the salt water is located below the discharge port 102. The electric push rod 204 is started to drive the sleeve 205 and the extrusion plate 206 to move upward, and the extrusion plate 206 moves in the direction close to the core barrel 201, thereby extruding the molten plastic. After being extruded, the molten plastic is squeezed out from the multiple discharge holes on the barrel 107 into the salt water. The two spiral scrapers 304 are controlled to make circular motions to cut the plastic extruded from the multiple discharge holes into particles. When the plastic particles enter the salt water and float upward, the salt water absorbs the temperature of the plastic particles, so that the plastic particles are cooled, cooled, formed and solidified. Since the density of the prepared plastic particles is less than the density of the salt water, the solidified plastic particles will float upward on the salt water surface and be discharged from the discharge ports 102 on both sides.

[0029] The cut plastic particles automatically float up and solidify in the salt water, thus preventing the traditional cutting method from causing the plastic particles to stick together after falling down; secondly, when the spiral-shaped electric push rod 204 cuts the plastic, the plastic particles are dispersed in the circumferential direction in the horizontal plane and float upward, further preventing the plastic particles from sticking together and affecting the molding of the plastic particles.

[0030] like Fig.11 As shown:

[0031] The spiral scrapers 304 are arranged in two in a circle, so that more plastic particles can be cut out at one time, thereby improving the efficiency of plastic cutting.

[0032] like Figures 2 to 4and 14:

[0033] The lower end of the cylinder 101 is rotatably connected to a jet seat 301, and a plurality of jet nozzles are installed on the upper end of the jet seat 301. The lower ends of the two spiral scrapers 304 are fixed to the jet seat 301. The lower end of the jet seat 301 passes through the cylinder 101 and is connected to an air inlet pipe 302.

[0034] The external tube is rotatably connected to the air inlet pipe 302, and the cold air is connected to the jet seat 301 through the external tube. The cold air is sprayed into the brine from multiple jet nozzles at the upper end of the jet seat 301, slowing down the rate of increase in the temperature of the brine in the cylinder 101, thereby keeping the temperature of the brine in a relatively low range, thereby maintaining the cooling effect of the brine on the plastic particles.

[0035] like Fig.12 As shown:

[0036] The two spiral scrapers 304 are each provided with a plurality of vent holes 306;

[0037] The gas ejected from the jet seat 301 can be blown onto the plastic particles through the multiple air holes 306, thereby further improving the cooling effect on the plastic particles. At the same time, the blown-in cold air can also stir the salt water, thereby improving the fluidity of the salt water, promoting the temperature of the salt water itself to fully contact with the cold air, thereby enabling rapid cooling. At the same time, it can also blow on the plastic particles, improving the full contact between the plastic particles and the salt water, thereby achieving faster cooling.

[0038] like Figure 2 , 5 and 14:

[0039] The lower end of the cylinder 101 is fixedly connected to a motor 108, the output shaft of the motor 108 is fixedly connected to a gear I 109, and the air inlet pipe 302 is fixedly connected to a gear II 303 meshing and transmission-connected with the gear I 109;

[0040] The motor 108 starts to drive the gear I 109 to rotate, and the gear I 109 drives the jet seat 301 to rotate by meshing with the gear II 303. The jet seat 301 drives the two spiral scrapers 304 to make a circular motion to cut the plastic extruded from the multiple discharge holes into particles; at the same time, the blown cold air is blown into the brine in a rotating manner, further improving the cooling effect on the brine.

[0041] like Figure 3 , 7 and 10:

[0042] The top cover 103 is symmetrically connected to two studs 104 for rotation, and the upper end of the core barrel 201 is threadedly connected to the two studs 104;

[0043] Manually rotating the two studs 104 drives the core barrel 201 to move up and down, thereby changing the vertical position of the core barrel 201 in the barrel 107, and then changing the number of discharge holes on the barrel 107 blocked by the core barrel 201. When the core barrel 201 moves downward to block more discharge holes, fewer plastic particles are cut out per unit time, and the granulation rate is low, which can avoid adhesion between the particles to the greatest extent; when the core barrel 201 moves upward to block fewer discharge holes, more plastic particles are cut out per unit time, thereby achieving rapid granulation operation, so that the corresponding granulation speed can be selected according to demand.

[0044] like Figure 4 As shown:

[0045] A dovetail ring 203 is fixedly connected to the core barrel 201 between the top cover 103 and the barrel 107, and a connecting frame 305 is fixedly connected to the upper ends of the two spiral scrapers 304, and the upper ends of the two connecting frames 305 are slidably connected to the dovetail ring 203;

[0046] The upper end of the spiral scraper 304 is coplanar with the bottom surface of the core barrel 201;

[0047] When the core barrel 201 moves up and down, the cooperation between the dovetail ring 203 and the connecting frame 305 drives the upper end of the electric push rod 204 to move up and down synchronously, so that the vertical span of the spiral scraper 304 changes synchronously. Therefore, when the vertical position of the core barrel 201 changes, the upper end of the electric push rod 204 and the lower end of the core barrel 201 always keep in sync, so that the plastic extruded from the exposed discharge hole can always be cut.

[0048] like Figure 5 As shown:

[0049] A drain pipe is provided at the lower end of the cylinder 101 , which is used to drain or replace the salt water in the cylinder 101 .

[0050] A method for processing plastic particles using a plastic particle processing device comprises the following steps:

[0051] a: injecting molten plastic into the barrel 107 through the feed pipe 202;

[0052] b: injecting salt water into the cylinder 101 through the liquid inlet pipe, the liquid level of the salt water is located below the discharge port 102, and connecting the cold air to the jet seat 301 through the air inlet pipe 302, and spraying the cold air into the salt water from the multiple jet nozzles at the upper end of the jet seat 301;

[0053] c: The electric push rod 204 is started to drive the sleeve 205 and the extrusion plate 206 to move upward, and the extrusion plate 206 squeezes the molten plastic out of the multiple discharge holes on the barrel 107;

[0054] d: The motor 108 is started to drive the gear Ⅰ109 to rotate, and the gear Ⅰ109 drives the jet seat 301 to rotate by meshing with the gear Ⅱ303, and the jet seat 301 drives the two spiral scrapers 304 to make a circular motion to cut the plastic extruded from the multiple discharge holes into particles;

[0055] e: The plastic particles enter the salt water and float upward while being cooled and formed into a shape and then discharged through the discharge ports 102 on both sides.

Claims

1. A plastic particle processing equipment, characterized in that: The invention comprises a cylinder (101) with two discharge ports (102) symmetrically arranged at the upper end, a top cover (103) fixedly connected to the top of the cylinder (101), a top frame (105) fixedly connected to the top cover (103), a column (106) fixedly connected to the top frame (105), a barrel (107) located inside the cylinder (101) fixedly connected at the lower end of the column (106), a plurality of discharge holes evenly distributed around the lower end of the barrel (107), and a core barrel (201) slidably connected to the top cover (103) and the barrel (107), the lower end of the core barrel (201) The end is connected to a feed pipe (202), and also includes an extrusion plate (206) slidably connected to the barrel (107); the core of the extrusion plate (206) is fixedly connected to a sleeve (205); the column rod (106) is slidably connected to the sleeve (205); the sleeve (205) and the core barrel (201) are slidably connected; an electric push rod (204) is fixedly connected between the sleeve (205) and the core barrel (201); a spiral scraper (304) is rotatably connected between the barrel body (101) and the barrel (107); and a liquid inlet pipe is installed on the top cover (103).

2. A plastic particle processing equipment according to claim 1, characterized in that: Two spiral scrapers (304) are arranged around the periphery.

3. A plastic particle processing equipment according to claim 2, characterized in that: The lower end of the cylinder (101) is rotatably connected to a jet seat (301), a plurality of jet nozzles are mounted on the upper end of the jet seat (301), the lower ends of the two spiral scrapers (304) are fixedly connected to the jet seat (301), and the lower end of the jet seat (301) passes through the cylinder (101) and is connected to an air inlet pipe (302).

4. A plastic particle processing equipment according to claim 3, characterized in that: A plurality of ventilation holes (306) are provided on the two spiral scrapers (304).

5. A plastic particle processing equipment according to claim 4, characterized in that: The lower end of the cylinder (101) is fixedly connected to a motor (108), the output shaft of the motor (108) is fixedly connected to a gear I (109), and the air inlet pipe (302) is fixedly connected to a gear II (303) meshingly connected to the gear I (109).

6. A plastic particle processing equipment according to claim 5, characterized in that: The top cover (103) is symmetrically rotatably connected to two studs (104), and the upper end of the core barrel (201) is threadedly connected to the two studs (104).

7. A plastic particle processing equipment according to claim 6, characterized in that: A dovetail ring (203) is fixedly connected to the core barrel (201) located between the top cover (103) and the barrel (107), and the upper ends of the two spiral scrapers (304) are fixedly connected to connecting frames (305), and the upper ends of the two connecting frames (305) are slidably connected to the dovetail ring (203).

8. A plastic particle processing equipment according to claim 7, characterized in that: The upper end of the spiral scraper (304) is coplanar with the bottom surface of the core barrel (201).

9. A plastic particle processing equipment according to claim 8, characterized in that: A drainage pipe is provided at the lower end of the cylinder (101).

10. The method for processing plastic particles using a plastic particle processing device according to claim 9, characterized in that: The following steps are involved: a: injecting molten plastic into the barrel (107) through the feed pipe (202); b: injecting salt water into the cylinder (101) through the liquid inlet pipe, connecting cold air to the jet seat (301) through the air inlet pipe (302), and spraying the cold air into the salt water from a plurality of jet nozzles at the upper end of the jet seat (301); c: The electric push rod (204) is started to drive the sleeve (205) and the extrusion plate (206) to move upward, and the extrusion plate (206) squeezes the molten plastic out of the multiple discharge holes on the barrel (107); d: The motor (108) is started to drive the gear I (109) to rotate, and the gear I (109) drives the jet seat (301) to rotate by meshing with the gear II (303), and the jet seat (301) drives the two spiral scrapers (304) to make a circular motion to cut the plastic extruded from the multiple discharge holes into particles; e: The plastic particles enter the salt water and float upwards while being cooled and formed into a shape and then discharged through the discharge ports (102) on both sides.

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