Plastic particle feeding device

Abstract

The present invention provides a plastic particle feeding device, which relates to the field of plastic particles. The plastic particle feeding device includes a hopper arranged at the feed outlet of an extruder, wherein a quantitative feeding mechanism for rotating and quantitatively feeding plastic raw materials is provided inside the hopper, and a vibration mechanism for vibrating up and down to prevent blocking is provided inside the hopper, and the quantitative feeding mechanism moves up and down by rotating the extrusion vibration mechanism. The plastic particle feeding device feeds plastic fragments into the interior of the hopper, and places corresponding ingredient reagents inside a powder storage chamber and a liquid reagent storage unit. When the quantitative feeding mechanism operates, the liquid ejection mechanism ejects an appropriate amount of liquid to wet the surface of the plastic fragments, and the powder ejection mechanism ejects an appropriate amount of powder ingredient, so that the powder reagent can be fully attached to the surface of the plastic fragments, thereby solving the problem of uneven mixing caused by the stratification of ingredients and plastic fragments during existing plastic particle processing.

Description

Technical Field

[0001] The invention relates to the field of plastic particles, in particular to a plastic particle feeding device. Background Art

[0002] The production process of plastic particles requires mixing the production raw materials and production ingredients in a certain proportion, such as antioxidants, nucleating agents, fillers and flame retardants. In particular, when recycled plastics are used for regeneration, it is also necessary to add coupling agents and other reagents to improve the performance of the plastics. In particular, when it is necessary to increase certain properties of the plastics, such as UV resistance, it is also necessary to add UV absorbers and hindered amine light stabilizers.

[0003] CN110480869B discloses a recycled plastic pellet drying device comprising a housing, a feed hopper, and a feed pipe. A drive mechanism for rotating the feed pipe is located at the top of the housing, with a gap defined between the bottom inner surface of the feed hopper and the top inner surface of the feed pipe. Two fans are located on the top wall of the housing, one on the left and one on the right. An air outlet hood is located below the top wall. A screen device is located in the upper middle portion of the housing, swinging left and right. An inclined partition is located below the screen device within the housing, with a lower left portion and a higher right portion. A water outlet pipe is located on the left side of the inclined partition, extending outward from the housing. The discharge port communicates with a heating chamber. This recycled plastic pellet drying device utilizes a unique feed structure that creates relative rotation at the connection between the bottom of the feed hopper and the feed pipe. This allows the wet plastic pellets to change position as they pass through, preventing them from being fixed and accumulating in place, creating blockage, as in the prior art. This allows for smoother material discharge. However, this drying process, which only dries the plastic fragments, can still lead to an increase in the moisture content of the plastic pellets during production, even with the ingredients used.

[0004] CN119159747B discloses a plastic particle feeding device, comprising a storage hopper, the storage hopper being provided with a feed pipe for plastic particles to enter, a discharge pipe for plastic particles to discharge, the feed pipe being provided with a first control valve, and the discharge pipe being provided with a second control valve; a vacuum machine, a horizontally placed pressure tank, and a support assembly for supporting the pressure tank being provided on the side of the storage hopper; the pressure tank being provided with an exhaust pipe connected to the storage hopper and a vacuum tube connected to the vacuum machine; a first regulating valve being provided at the end of the exhaust pipe, and a second regulating valve being provided on the vacuum tube; when the pressure tank is used for feeding plastic particles, the negative pressure environment within the pressure tank can be maintained for a long time; therefore, the vacuum machine does not need to be frequently activated; simply opening the first regulating valve on the pressure tank can meet the feeding needs of the storage hopper, thereby reducing the frequency of the vacuum machine being opened and closed. Since plastic particles need to be mixed with some ingredients during processing, the feeding device provided by this technical solution uses negative pressure adsorption to feed the materials. The mixed powdered ingredients and plastic fragments have different qualities, which results in uneven mixing of the plastic fragments and ingredients, affecting later production. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a plastic particle feeding device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plastic particle feeding device, comprising a hopper arranged at the feed outlet of an extruder, a quantitative feeding mechanism for rotating and quantitatively feeding plastic raw materials is provided inside the hopper, a vibration mechanism for vibrating up and down to prevent blocking is provided inside the hopper, the quantitative feeding mechanism moves up and down through the rotating extrusion vibration mechanism, an ingredient feeding mechanism is provided inside the hopper below the quantitative feeding mechanism, the ingredient feeding mechanism includes a liquid spraying mechanism for mixing at least one ingredient into a liquid, and a powder spraying mechanism for feeding other ingredients separately as solids, the liquid spraying mechanism is located above the powder spraying mechanism and works before the powder spraying mechanism.

[0007] Preferably, the quantitative feeding mechanism includes a baffle arranged at the lower part of the inside of the hopper, a discharge hole is provided in the middle of the baffle, a rotating disk is rotatably connected above the baffle, a plurality of through holes distributed in an annular manner for receiving materials are opened on the surface of the rotating disk, the through holes coincide with the discharge holes through rotation, and a stepped continuous raised ring is fixedly installed above the surface of the rotating disk.

[0008] Preferably, the quantitative feeding mechanism comprises a rotating column whose axis is perpendicular to the axis of the hopper, a plurality of annularly distributed bearing grooves are provided on the surface of the rotating column, and a grooved extrusion belt is fixedly installed on the middle outer ring of the bearing groove.

[0009] Preferably, the vibration mechanism includes a sliding ring arranged inside the hopper, and a plurality of vibration rods pointing to the hopper are arranged inside the sliding ring. The centers of the vibration rods are fixedly connected through a central axis, and a resistance part that elastically squeezes the quantitative feeding mechanism is provided below the central axis.

[0010] Preferably, the liquid spraying mechanism includes a plurality of annularly distributed nozzles arranged inside the hopper, the liquid inlet pipes of the nozzles extend to the outside of the hopper, the liquid inlet pipes of the nozzles are connected and penetrated by a connecting ring, one end of the connecting ring is connected and penetrated with an electromagnetic piston part, the inlet end of the electromagnetic piston part is connected and penetrated with a liquid reagent storage unit, and the inlet end and outlet end of the electromagnetic piston part are both connected and penetrated with a one-way guide valve.

[0011] Preferably, the powder spraying mechanism includes a plurality of powder storage chambers for storing different types of reagents, the top of the powder storage chamber is connected to and penetrated by a transfer unit that can adjust the dosage, the bottom of the transfer unit is connected to and penetrated by a temporary storage chamber, one end of the temporary storage chamber is connected to and penetrated by a hopper, and the other end of the temporary storage chamber is connected to and penetrated by a blast pipe.

[0012] Preferably, the transfer unit includes an outer shell, the upper end of the outer shell is connected to and passes through the powder storage chamber, the lower end of the outer shell is connected to and passes through the temporary storage chamber, the inner part of the outer shell is rotatably connected to a grooved rotating body, the inner groove of the grooved rotating body is slidably connected to a covering part, the middle part of the covering part is fixedly installed with an extension rod, the extension rod extends to the outside of the grooved rotating body, and multiple extension rods are fixedly connected by a connecting ring, the middle part of the connecting ring is rotatably connected to a threaded shaft, and the threaded shaft is threadedly connected to the grooved rotating body.

[0013] Preferably, a material sliding heating pipe with an obtuse angle at the center of the pipe is provided at the connection portion between the hopper and the extruder, and a heat insulating pad is provided at the connection portion between the material sliding heating pipe and the extruder.

[0014] Preferably, the portion of the material sliding heating pipe that is inclined to the center line of the hopper is rotatably connected to a screw blade, one end of the screw blade extends to the feed point of the extruder, and the other end extends to the hopper outlet.

[0015] Preferably, a fixed ring is fixedly installed inside the hopper, the fixed ring is located above the sliding ring, and a pressure sensor is fixedly installed in the middle of the bottom end of the fixed ring, the pressure sensor is located just above the central axis, and the pressure sensor controls the operation of the ingredient feeding mechanism.

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

[0017] 1. The plastic particle feeding device puts plastic fragments into the inside of the hopper and places the corresponding ingredient reagents inside the powder storage chamber and the liquid reagent storage unit. The quantitative feeding mechanism works to discharge a certain volume of plastic fragments. First, the liquid spraying mechanism sprays an appropriate amount of liquid to wet the surface of the plastic fragments, and then the powder spraying mechanism sprays an appropriate amount of powder ingredient, so that the powder reagent can be fully attached to the surface of the plastic fragments, thereby solving the problem of uneven mixing caused by the stratification of ingredients and plastic fragments during existing plastic particle processing.

[0018] 2. In the plastic particle feeding device, a material sliding heating pipe with an obtuse angle at the center of the pipe is set at the connection part between the hopper and the extruder. A heating wire is set inside the material sliding heating pipe, and an insulation pad is set at the connection between the material sliding heating pipe and the extruder. Since the water content has a great influence on the molding of plastic particles, preliminary drying is carried out by setting the material sliding heating pipe. The obtuse angle shape can ensure that the plastic particles can flow slowly.

[0019] 3. The plastic particle feeding device, the transfer unit includes a shell, the upper end of the shell is connected to and passes through the powder storage chamber, the lower end of the shell is connected to and passes through the temporary storage chamber, the inner part of the shell is rotatably connected to a grooved rotating body, the inner groove of the grooved rotating body is slidably connected to a covering part, the middle part of the covering part is fixedly installed with an extension rod, the extension rod extends to the outside of the grooved rotating body, and multiple extension rods are fixedly connected by a connecting ring, the middle part of the connecting ring is rotatably connected to a threaded shaft, the threaded shaft is threadedly connected to the grooved rotating body, and the extension rod can be driven to move by rotating the threaded shaft, thereby changing the groove length of the grooved rotating body blocked by the covering part, and then the single delivery volume can be changed.

[0020] 4. The plastic particle feeding device has a fixed ring fixedly installed inside the hopper, the fixed ring is located above the sliding ring, and a pressure sensor is fixedly installed in the middle of the bottom end of the fixed ring. The pressure sensor is located just above the central axis. The pressure sensor controls the operation of the ingredient feeding mechanism. Through such a setting, after the pressure sensor is pressed, the ingredient feeding mechanism can work in a response sequence, avoiding the time difference between the fixed response cycle and the feeding, so that the main ingredient and the ingredient can be fed at intervals. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection of the rotating column of the present invention;

[0023] Figure 3 A half-section schematic diagram of the hopper of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection of the rotating disk of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection of the vibration mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the ingredient delivery mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the liquid ejection mechanism of the present invention;

[0028] Figure 8 Schematic diagram of the powder ejection mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection of the grooved rotating body of the present invention.

[0030] In the figure: 1. Hopper; 2. Quantitative feeding mechanism; 3. Vibrating mechanism; 4. Ingredient feeding mechanism; 41. Liquid ejection mechanism; 42. Powder ejection mechanism; 201. Baffle; 202. Discharge hole; 203. Rotating disk; 204. Through hole; 205. Continuous raised ring; 206. Rotating column; 207. Loading groove; 208. Grooved extrusion belt; 301. Sliding ring; 302. Vibrating rod; 303. Central axis; 304. Interference part; 411. Spray head ; 412, electromagnetic piston part; 413, liquid reagent storage unit; 414, one-way valve; 421, powder storage chamber; 423, transfer unit; 424, temporary storage chamber; 425, blast pipe; 426, outer shell; 427, grooved rotating body; 428, covering part; 429, extension rod; 430, connecting ring; 431, threaded shaft; 101, material sliding heating pipe; 102, thermal insulation pad; 103, auger piece; 5, fixing ring; 6, press sensor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0035] like Figure 1-9 As shown, a plastic particle feeding device includes a hopper 1 arranged at the feed outlet of an extruder, a quantitative feeding mechanism 2 for rotating and quantitatively feeding plastic raw materials is provided inside the hopper 1, a vibration mechanism 3 for vibrating up and down to prevent blocking is provided inside the hopper 1, the quantitative feeding mechanism 2 moves up and down by rotating and squeezing the vibration mechanism 3, and an ingredient feeding mechanism 4 is provided below the quantitative feeding mechanism 2 inside the hopper 1, the ingredient feeding mechanism 4 includes a liquid spraying mechanism 41 for mixing at least one ingredient into a liquid for feeding, and the liquid spraying mechanism 41 limits the amount of liquid sprayed to be less than the maximum water content requirement of the fed plastic. Of course, liquid additives also need to be added in the PP plastic production process itself. Since the total amount of the added liquid additives is small, it can be diluted with deionized water to meet the effect of wetting the plastic fragments.

[0036] And the powder spraying mechanism 42 that feeds other ingredients as solids, the liquid spraying mechanism 41 is located above the powder spraying mechanism 42 and works before the powder spraying mechanism 42. The volume of a single dose of the quantitative feeding mechanism 2 is known, and the single dose of the ingredient feeding mechanism 4 is determined by proportional conversion. During the falling process of the plastic fragments fed by the quantitative feeding mechanism 2, the liquid spraying mechanism 41 sprays the liquid feeding reagent to moisten the plastic fragments. When the plastic fragments continue to fall, the powdered additive can be sprayed through the powder spraying mechanism 42, so that the powdered additive is fully attached to the surface of the plastic fragments.

[0037] The quantitative feeding mechanism 2 includes a baffle 201 arranged at the lower part of the inside of the hopper 1, and a discharge hole 202 is provided in the middle of the baffle 201. A rotating disk 203 is rotatably connected above the baffle 201. The surface of the rotating disk 203 is provided with a plurality of annular through holes 204 for receiving materials. The through holes 204 coincide with the discharge holes 202 through rotation. A stepped continuous raised ring 205 is fixedly installed above the surface of the rotating disk 203. By rotating the rotating disk 203, the through holes 204 can be filled with plastic fragments. When the through holes 204 rotate to coincide with the discharge holes 202, the plastic fragments fall. Since the discharge hole 202 is located on one side of the hopper 1, the power mechanism part that drives the rotating disk 203 to rotate can be installed below the hopper 1, which makes installation more convenient.

[0038] The quantitative feeding mechanism 2 includes a rotating column 206 whose axis is perpendicular to the axis of the hopper 1. A plurality of annular bearing grooves 207 are provided on the surface of the rotating column 206. A grooved extrusion belt 208 is fixedly installed on the middle outer ring of the bearing groove 207. The position of the bearing groove 207 is changed by rotating the rotating column 206. A quantitative amount of plastic fragments can be fed by using the bearing groove 207. With such an arrangement, the plastic fragments can fall by themselves under the action of gravity when fed into the bearing groove 207, thereby preventing the plastic fragments from being stuck in the bearing groove 207.

[0039] The vibration mechanism 3 includes a sliding ring 301 arranged inside the hopper 1, and a plurality of vibration rods 302 pointing to the hopper 1 are arranged inside the sliding ring 301. The centers of the vibration rods 302 are fixedly connected through a central shaft 303. The central shaft 303 is connected to a return spring. The installation position of the return spring can be in contact with the quantitative feeding mechanism 2, or can be arranged between the central shaft 303 and the hopper 1. The vibration mechanism 3 can be squeezed upward by the return spring and then reset under the action of the return spring. A resistance part 304 elastically squeezed with the quantitative feeding mechanism 2 is provided below the central shaft 303. The resistance part 304 changes according to the shape of the part of the quantitative feeding mechanism 2 that is squeezed with it, ensuring that the resistance part 304 can be squeezed up and down during the rotation process. The up and down movement of the vibration mechanism 3 can prevent plastic fragments from getting stuck in the hopper 1.

[0040] The liquid spraying mechanism 41 includes a plurality of annularly distributed nozzles 411 arranged inside the hopper 1. The liquid can be evenly sprayed onto the surface of the plastic fragments through the nozzles 411. The liquid inlet pipe of the nozzle 411 extends to the outside of the hopper 1. The liquid inlet pipe of the nozzle 411 is connected and penetrated by a connecting ring 430. One end of the connecting ring 430 is connected and penetrated with an electromagnetic piston part 412. The electromagnetic piston part 412 extracts and discharges liquid through the extension and contraction of the internal piston unit. By controlling the single movement range of the piston part, the amount of water sprayed at a single time can be limited. The inlet end of the electromagnetic piston part 412 is connected and penetrated with a liquid reagent storage unit 413. The inlet and outlet ends of the electromagnetic piston part 412 are both connected and penetrated with a one-way valve 414. By setting the one-way valve 414, liquid backflow can be prevented.

[0041] The powder ejection mechanism 42 includes a plurality of powder storage chambers 421 for storing different types of reagents. The top of the powder storage chamber 421 is connected to and penetrated by a transfer unit 423 that can adjust the dosage. The bottom of the transfer unit 423 is connected to and penetrated by a temporary storage chamber 424. One end of the temporary storage chamber 424 is connected to and penetrated by the hopper 1, and the other end of the temporary storage chamber 424 is connected to and penetrated by a blast pipe 425. A fixed amount of powder is transferred to the temporary storage chamber 424 through the transfer unit 423, and the fixed amount of powder is blown to the plastic fragments through the blast pipe 425. At the same time, a one-way exhaust valve can be set on one side of the hopper 1 for exhaust.

[0042] The transfer unit 423 includes a shell 426, the upper end of the shell 426 is connected to and passes through the powder storage chamber 421, the lower end of the shell 426 is connected to and passes through the temporary storage chamber 424, the inner rotation of the shell 426 is connected to a grooved rotating body 427, the adjustment end of the grooved rotating body 427 extends to the outside of the shell 426, the other side of the grooved rotating body 427 is connected to a power source for driving the grooved rotating body 427 to rotate, half of the groove of the grooved rotating body 427 is connected to the hopper 1, and the groove of the grooved rotating body 427 is slidably connected to the inner side of the groove of the grooved rotating body 427. The covering portion 428 has an extension rod 429 fixedly installed in the middle of the covering portion 428, and the extension rod 429 extends to the outside of the grooved rotating body 427. Multiple extension rods 429 are fixedly connected by a connecting ring 430. The middle part of the connecting ring 430 is rotatably connected with a threaded shaft 431, and the threaded shaft 431 is threadedly connected to the grooved rotating body 427. By rotating the threaded shaft 431, the extension rod 429 can be driven to move, thereby changing the groove length of the grooved rotating body 427 blocked by the covering portion 428, and then changing the single delivery volume.

[0043] A material sliding heating pipe 101 with an obtuse angle at the center of the pipe is set at the connection part between the hopper 1 and the extruder. A heating wire is set inside the material sliding heating pipe 101, and an insulation pad 102 is set at the connection between the material sliding heating pipe 101 and the extruder. Since the water content has a great influence on the molding of plastic particles, preliminary drying is carried out by setting the material sliding heating pipe 101, and setting an obtuse angle shape can ensure that the plastic particles can flow slowly.

[0044] The part of the material sliding heating pipe 101 that is inclined to the center line of the hopper 1 is rotatably connected to a screw dragon piece 103. One end of the screw dragon piece 103 extends to the feed point of the extruder, and the other end extends to the outlet of the hopper 1. By setting the screw dragon piece 103, the plastic fragments can be stirred and moved.

[0045] A fixed ring 5 is fixedly installed inside the hopper 1, and the fixed ring 5 is located above the sliding ring 301. A pressure sensor 6 is fixedly installed in the middle of the bottom end of the fixed ring 5, and the pressure sensor 6 is located just above the central axis 303. The pressure sensor 6 controls the operation of the ingredient delivery mechanism 4. Through such a setting, after the pressure sensor 6 is pressed, the ingredient delivery mechanism 4 can work in a response sequence, avoiding the fixed response cycle from easily forming a time difference between the feeding, so that the main ingredient and the ingredient can be delivered at intervals.

[0046] During use, plastic fragments are put into the interior of the hopper 1, and the corresponding ingredient reagents are placed inside the powder storage chamber 421 and the liquid reagent storage unit 413. The quantitative feeding mechanism 2 works to discharge a certain volume of plastic fragments. First, an appropriate amount of liquid is sprayed out through the liquid spraying mechanism 41 to wet the surface of the plastic fragments, and then an appropriate amount of powder ingredient is sprayed out through the powder spraying mechanism 42, so that the powder reagent can be fully attached to the surface of the plastic fragments, thereby solving the problem of uneven mixing caused by the stratification of ingredients and plastic fragments during the existing plastic particle processing.

[0047] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0048] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A plastic particle feeding device, comprising a hopper (1) arranged at the feed outlet of an extruder, characterized in that: The hopper (1) is provided with a quantitative feeding mechanism (2) for rotating and quantitatively feeding plastic raw materials. The hopper (1) is provided with a vibration mechanism (3) for vibrating up and down to prevent blocking. The quantitative feeding mechanism (2) moves up and down by rotating and squeezing the vibration mechanism (3). An ingredient dispensing mechanism (4) is provided inside the hopper (1) below the quantitative dispensing mechanism (2). The ingredient dispensing mechanism (4) includes a liquid ejection mechanism (41) for mixing at least one ingredient into a liquid and dispensing the liquid, and a powder ejection mechanism (42) for dispensing the other ingredients into solids. The liquid ejection mechanism (41) is located above the powder ejection mechanism (42) and operates before the powder ejection mechanism (42). The quantitative feeding mechanism (2) comprises a baffle (201) arranged at the lower part of the interior of the hopper (1); a discharge hole (202) is provided in the middle of the baffle (201); a rotating disk (203) is rotatably connected above the baffle (201); a surface of the rotating disk (203) is provided with a plurality of annularly distributed through holes (204) for receiving materials; the through holes (204) coincide with the discharge holes (202) through rotation; a stepped continuous raised ring (205) is fixedly mounted above the surface of the rotating disk (203); The quantitative feeding mechanism (2) comprises a rotating column (206) whose axis is perpendicular to the axis of the hopper (1); a plurality of annularly distributed bearing grooves (207) are provided on the surface of the rotating column (206); a grooved extrusion belt (208) is fixedly mounted on the outer ring of the middle portion of the bearing groove (207); The liquid ejection mechanism (41) comprises a plurality of annularly distributed nozzles (411) arranged inside the hopper (1); the liquid inlet pipes of the nozzles (411) extend to the outside of the hopper (1); the liquid inlet pipes of the nozzles (411) are connected and penetrated by a connecting ring (430); one end of the connecting ring (430) is connected to and penetrated by an electromagnetic piston part (412); the inlet end of the electromagnetic piston part (412) is connected to and penetrated by a liquid reagent storage unit (413); and the inlet end and the outlet end of the electromagnetic piston part (412) are both connected to and penetrated by a one-way guide valve (414); The powder ejection mechanism (42) includes a plurality of powder storage chambers (421) for storing different types of reagents. The top of the powder storage chamber (421) is connected to and penetrated by a transfer unit (423) capable of adjusting the amount of powder to be ejected. The bottom of the transfer unit (423) is connected to and penetrated by a temporary storage chamber (424). One end of the temporary storage chamber (424) is connected to and penetrated by the hopper (1). The other end of the temporary storage chamber (424) is connected to and penetrated by an air blast pipe (425). The transfer unit (423) includes a shell (426), the upper end of the shell (426) is connected to and passes through the powder storage chamber (421), the lower end of the shell (426) is connected to and passes through the temporary storage chamber (424), the interior of the shell (426) is rotatably connected to a grooved rotating body (427), the groove of the grooved rotating body (427) is slidably connected to a covering part (428), an extension rod (429) is fixedly installed in the middle of the covering part (428), the extension rod (429) extends to the outside of the grooved rotating body (427), and multiple extension rods (429) are fixedly connected by a connecting ring (430), the middle part of the connecting ring (430) is rotatably connected to a threaded shaft (431), and the threaded shaft (431) is threadedly connected to the grooved rotating body (427).

2. A plastic particle feeding device according to claim 1, characterized in that: The vibration mechanism (3) comprises a sliding ring (301) arranged inside the hopper (1); a plurality of vibration rods (302) pointing toward the hopper (1) are arranged inside the sliding ring (301); the centers of the vibration rods (302) are fixedly connected via a central axis (303); and a resistance portion (304) elastically pressed against the quantitative feeding mechanism (2) is provided below the central axis (303).

3. A plastic particle feeding device according to any one of claim 2, characterized in that: A material sliding heating pipe (101) having an obtuse angle between the pipe center is provided at the connection portion between the hopper (1) and the extruder, and a heat insulating pad (102) is provided at the connection portion between the material sliding heating pipe (101) and the extruder.

4. A plastic particle feeding device according to claim 3, characterized in that: The portion of the material-sliding heating pipe (101) that is inclined to the center line of the hopper (1) is rotatably connected to an auger piece (103), one end of the auger piece (103) extends to the feed point of the extruder, and the other end extends to the outlet of the hopper (1).

5. A plastic particle feeding device according to claim 4, characterized in that: A fixed ring (5) is fixedly installed inside the hopper (1), and the fixed ring (5) is located above the sliding ring (301). A pressure sensor (6) is fixedly installed in the middle of the bottom end of the fixed ring (5), and the pressure sensor (6) is located directly above the central axis (303). The pressure sensor (6) controls the operation of the ingredient feeding mechanism (4).

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