WO2024031906A1

WO2024031906A1 - Automatic mixing and color matching machine for plastic particles

Info

Publication number: WO2024031906A1
Application number: PCT/CN2022/139962
Authority: WO
Inventors: 陈贤鹏
Original assignee: 台州市朔翔科技股份有限公司
Priority date: 2022-08-09
Filing date: 2022-12-19
Publication date: 2024-02-15
Also published as: CN218019493U

Abstract

An automatic mixing and color matching machine for plastic particles, comprising a housing (1). A feed channel (2), a quantitative cavity, a mixing cavity (3), and a discharge channel (4) are provided in the housing (1); a quantitative rotating shaft (5) is rotatably connected inside the quantitative cavity, and the quantitative rotating shaft is provided with partition plates (6); a quantitative sub-cavity (7) is formed between every two adjacent partition plates (6) and the inner wall surface of the quantitative cavity; a discharge end of the discharge channel (2) is communicated with the quantitative cavity, and the quantitative cavity is communicated with the mixing cavity (3) by means of a discharge port (8); the housing (1) is connected to a colorant apparatus; a mixing apparatus is provided in the mixing cavity (3); a discharge port (9) is provided at the bottom of the mixing cavity (3); and the housing (1) is provided with a valve apparatus. The quantitative rotating shaft (5) and the partition plates (6) divide the quantitative cavity into multiple quantitative sub-cavities (7) and circumferentially rotate, so that a certain amount of plastic particles can be poured into the mixing cavity. Compared with the prior art, the present invention eliminates the need for multiple valves and a driving assembly therefor, so that the structure of the whole device and the number of parts and components are simplified, the costs are reduced, and the overall work is stable and reliable.

Description

An automatic mixing and color matching machine for plastic particles

Technical areas:

The utility model belongs to the technical field of plastic production equipment, and specifically refers to an automatic mixing and color matching machine for plastic particles.

Background technique:

Plastic products are indispensable products in people's lives, such as tableware, tables and chairs, vehicle supplies, toys, etc. Traditional plastic coloring uses direct spraying. This method is relatively simple, but the coloring effect is not good enough and the color fades easily. Therefore, the existing plastic coloring method involves directly mixing the toner with the plastic raw materials and directly molding the main color. This makes the coloring effect excellent and there is no color fading.

The existing Chinese invention patent (Authorization Announcement No. CN109986710B) discloses an automatic feeding device for plastic processing machinery, which includes a plastic raw material barrel, a fixed volume barrel, a mixer, a liquid masterbatch machine and a control system. The bottom of the cylinder is connected to the fixed-volume barrel through a pipeline, and the bottom of the fixed-volume barrel is connected to the mixer through a pipeline. A liquid masterbatch feed port is provided above the mixer, and the automatic addition of the liquid masterbatch is completed by a liquid masterbatch machine; The fixed-volume barrel is equipped with a material level sensor; the lower end of the mixer is connected to the plastic processing machinery through a pipeline. Among them, an upper valve is set at the inlet of the fixed-volume barrel, and a lower valve is set at the outlet. In actual use, after the plastic particles fill the fixed-volume barrel, the upper valve is first closed, and then the lower valve is opened. Make all the plastic particles in the fixed-volume barrel fall into the mixer, then close the lower valve and then open the upper valve, so that the plastic particles can fill the fixed-volume barrel again. It can be seen that in fact, the opening and closing movements of the valve and the lower valve require two power sources respectively, or the cooperation of one power source and a transmission component to drive the upper and lower valves respectively. The overall structure is complex, has many parts and is costly. higher.

Contents of the invention:

The purpose of this utility model is to provide an automatic mixing and color matching machine for plastic particles. Its quantitative rotating shaft and partitions divide the quantitative chamber into a plurality of quantitative sub-chambers and rotate circumferentially, so that plastic particles can be poured into the mixing chamber in a certain amount. Compared with the existing technology, it effectively eliminates the need for multiple valves and their driving components, simplifying the structure and number of parts of the overall equipment, reducing costs, and making the overall operation stable and reliable.

The utility model is implemented as follows:

An automatic mixing and color matching machine for plastic particles, including an organic casing. The casing is provided with a feeding channel, a quantitative chamber, a stirring chamber and a discharging channel from top to bottom. A quantitative rotating shaft is rotatably connected to the quantitative chamber. There are several partitions evenly distributed around the circumference of the rotating shaft and arranged along its radial direction. An independent quantitative sub-cavity is formed between two adjacent partitions and the inner wall of the quantitative chamber. The discharge end of the feed channel is connected to the top of the quantitative chamber. , and the end port can be overlapped by one of the quantitative subcavities, the quantitative cavity and the stirring chamber are connected through the unloading port, and the unloading port can be overlapped by one of the quantitative subcavities, and the casing is connected to the toner. A device for injecting color material into the mixing chamber. The mixing chamber is provided with a stirring device capable of mixing and stirring plastic particles and toner. The bottom of the mixing chamber is provided with a discharge port connected to the feed end of the discharge channel. The casing There is a valve device that can block or open the discharge port.

In the above-mentioned automatic mixing and color matching machine for plastic particles, the color material device includes a powder storage box filled with toner. The bottom of the powder storage box is provided with an outlet on one side connected to the stirring chamber. The powder trough and the powder outlet trough are rotatably connected to a feeding gear partially located in the mixing chamber. A feeding chamber is formed between the teeth of the feeding gear and the side wall of the powder outlet trough, and the feeding gear is driven by a power device to rotate.

In the above-mentioned automatic mixing and color matching machine for plastic particles, the power device includes a feeding motor fixed on the casing, the output shaft of the feeding motor is equipped with a driving wheel, and the powder storage box is rotatably connected to a transmission shaft, the feeding gear is sleeved on the upper end of the transmission shaft, and the lower end of the transmission shaft is sleeved with a driven wheel that cooperates with the driving wheel.

In the above-mentioned automatic mixing and color matching machine for plastic particles, a control shaft is rotatably connected to the casing, and a detection gear is installed on the control shaft, as well as a detection wheel that cooperates with the driving wheel transmission. The casing is provided with a detection wheel. A position sensor is used to detect the position of the teeth of the gear. The position sensor is electrically connected to the controller. The controller controls the opening or closing of the feeding motor based on the signal from the position sensor.

In the above-mentioned automatic mixing and color matching machine for plastic particles, the stirring device includes a stirring shaft that is rotatably connected in the stirring chamber. Several stirring blades are distributed circumferentially around the stirring shaft. One end of the stirring shaft is connected to the machine. The stirring motor on the shell is connected for transmission, and the stirring motor drives the rotation of the stirring shaft.

In the above-mentioned automatic mixing and color matching machine for plastic particles, the outer end of the partition plate extends along the rotation direction away from the quantitative rotating shaft to form an arc-shaped baffle, and the arc-shaped baffle slides and fits on the inner wall of the quantitative chamber. And the arc-shaped baffles can completely cover the discharging end and the unloading port of the feed channel respectively. One end of the quantitative rotating shaft is drivingly connected to the driving motor provided on the casing, and the driving motor drives the rotation of the quantitative rotating shaft.

In the above-mentioned automatic mixing and color matching machine for plastic particles, a material storage chamber is provided in the casing between the mixing chamber and the discharging channel, and the mixing chamber is connected to the material storage chamber through the discharging port. The feed port of the channel is located at the bottom of the storage chamber.

In the above-mentioned automatic mixing and color matching machine for plastic particles, the valve device includes a hinge shaft rotatably connected to the casing. The hinge shaft is equipped with a valve plate that can completely block the discharge port. One end of the hinge shaft is connected to The valve motor is connected for transmission, and the valve motor drives the hinge shaft and the reciprocating rotation of the valve plate.

In the above-mentioned automatic mixing and color matching machine for plastic particles, the casing includes a rear casing and a front cover mounted on the front end of the rear casing and made of transparent material. The front cover and the rear casing The dosing cavity, stirring cavity and material storage cavity are formed between the bodies, and the feeding channel, discharging channel, dosing shaft, coloring device, stirring device and valve device are all arranged on the rear housing.

In the above-mentioned automatic mixing and color matching machine for plastic particles, a controller is also included. The controller is connected to an external server for communication. The stirring device, color device and valve device are all electrically connected to the controller. The communication information of the external server and the opening and closing times of the valve device control the working status of the mixing device and the coloring device.

The outstanding advantages of this utility model compared with the existing technology are:

1. The quantitative rotating shaft and partitions of this utility model divide the quantitative chamber into multiple quantitative sub-cavities and rotate them circumferentially, so that plastic particles can be poured into the mixing chamber in a certain amount. Compared with the existing technology, multiple quantitative sub-cavities are effectively eliminated. The valve and its driving components simplify the structure and number of parts of the overall equipment, reduce costs, and make the overall operation stable and reliable;

2. The utility model has good integrity. By integrating the dosing chamber, stirring chamber and storage chamber in the same housing, it simplifies the structure of the entire equipment and effectively reduces the processing time and parts processing time. The mold cost makes its assembly simple and fast.

Picture description:

Figure 1 is an overall perspective view of the utility model;

Figure 2 is a perspective view of the utility model without a front cover;

Figure 3 is an overall cross-sectional view of the utility model;

Figure 4 is a structural diagram of the cooperation between the feeding gear and the powder discharge chute of the present invention.

In the picture: 1. Machine casing; 2. Feed channel; 3. Mixing chamber; 4. Discharge channel; 5. Quantitative rotating shaft; 6. Partition plate; 7. Quantitative subcavity; 8. Discharge port; 9. Discharge Material port; 10. Powder storage box body; 11. Feeding gear; 12. Feeding cavity; 13. Feeding motor; 14. Driving wheel; 15. Transmission shaft; 16. Driven wheel; 17. Control shaft; 18. Detection gear ; 19. Detection wheel; 20. Position sensor; 21. Stirring shaft; 22. Stirring blade; 23. Stirring motor; 24. Arc baffle; 25. Drive motor; 26. Storage chamber; 27. Hinge shaft; 28 , valve plate; 29. rear housing; 30. front cover.

Detailed ways:

The utility model will be further described below with specific embodiments, see Figures 1-4:

An automatic mixing and color matching machine for plastic particles, including an organic casing 1. The casing 1 is provided with a feed channel 2, a dosing chamber, a stirring chamber 3 and a discharging channel 4 from top to bottom. The dosing chamber is rotatably connected. There is a quantitative rotating shaft 5. Several quantitative rotating shafts 5 are evenly distributed in the circumferential direction and are provided with partitions 6 along their radial direction. An independent quantitative sub-cavity 7 is formed between two adjacent partitions 6 and the inner wall of the quantitative cavity. A feed channel The discharging end of 2 is connected to the top of the quantitative chamber, and this end port can be overlapped by one of the quantitative subcavities 7. The quantitative chamber and the stirring chamber 3 are connected through the discharge port 8, and the discharge port 8 can be overlapped by one of the discharging ports 8. A quantitative subcavity 7 overlaps, and the casing 1 is connected with a color material device capable of injecting toner into the stirring chamber 3. The stirring chamber 3 is provided with a stirring device capable of mixing and stirring plastic particles and toner. The stirring chamber 3 The bottom of the machine is provided with a discharge port 9 connected to the feed end of the discharge channel 4, and the casing 1 is provided with a valve device that can block or conduct the discharge port 9.

Among them, the amplitude of a single circumferential rotation of the quantitative rotating shaft 5 is that the previous quantitative sub-cavity 7 is completely separated from the feed channel 2 or the unloading port 8, and at the same time the next quantitative sub-cavity 7 is completely separated from the feed channel 2 or the unloading port. The connection of port 8; and, the rotation frequency of the quantitative rotating shaft 5 is determined according to the stirring efficiency of the stirring device and the opening time of the valve device, that is, after the stirring device fully stirs and mixes the plastic particles and toner or color liquid, the valve device The discharge port 9 is opened within a certain period of time so that the plastic particles in the mixing chamber 3 fall into the discharge channel 4 .

That is, the working principle of this utility model is: the discharge end of the feed channel 2 is connected with one of the quantitative sub-cavities 7 of the quantitative cavity, and the plastic particles are put into the quantitative sub-cavity 7 through the feed channel 2, to be filled. After filling or filling for a certain time or filling a certain volume, the quantitative rotating shaft 5 drives the partition plate 6 to rotate forward relative to the quantitative chamber, so that all the quantitative sub-cavities 7 in the quantitative chamber rotate forward, and the discharge end of the feed channel 2 It can be connected with the next quantitative sub-cavity 7 without plastic particles, and then can be filled with plastic particles into this quantitative sub-cavity 7, while the unloading port 8 is connected with the quantitative sub-cavity 7 filled with plastic particles, so that the plastic particles can be Under the action of gravity, the plastic particles fall into the mixing chamber 3 through the discharge port 8; and in the mixing chamber 3, according to the theorem, the amount of plastic particles poured into the mixing chamber 3 is injected into the mixing chamber 3 by the coloring device in equal proportions. The amount of toner is stirred and mixed by the stirring device. After the stirring and mixing is completed, the valve device opens the discharge port 9 within a certain period of time, so that all the plastic particles in the mixing chamber 3 fall into the discharge channel 4 Inside.

At the same time, the coloring device can use color liquid or toner. In this embodiment, the specific structure of the coloring device can be: the coloring device includes a powder storage box filled with toner. The box body 10 and the bottom of the box of the powder storage box body 10 are provided with a powder discharge trough on one side that is connected to the stirring chamber 3. A feeding gear 11 partially located in the mixing chamber 3 is rotatably connected in the powder trough. The teeth of the feeding gear 11 A feeding cavity 12 is formed between the teeth and the side wall of the powder discharge chute, and the feeding gear 11 is driven by a power device to rotate. That is, the toner in the toner storage box body 10 will be filled into the feeding chamber 12. With the rotation of the feeding gear 11, the toner can be pushed into the mixing chamber 3 with the rotation of the feeding gear 11. At the same time, due to each The capacity of the feeding chamber 12 is the same, so by controlling the rotation angle of the feeding gear 11, the toner can be controlled to be pushed into the stirring chamber 3 in a certain amount.

Moreover, the power device can be a motor that directly drives the rotation of the feeding gear 11. In this embodiment, the power device includes a feeding motor 13 fixed on the casing 1, and a driving wheel is mounted on the output shaft of the feeding motor 13. 14. A transmission shaft 15 is rotatably connected to the powder storage box body 10 . The feeding gear 11 is sleeved on the upper end of the transmission shaft 15 . The lower end of the transmission shaft 15 is sleeved with a driven wheel 16 that drives and cooperates with the driving wheel 14 . Furthermore, in order to effectively control the opening and closing of the feeding motor 13 to control the toner to enter the mixing chamber 3 in a certain amount, the casing 1 is rotatably connected to a control shaft 17, and the control shaft 17 is equipped with a detection gear. 18. As well as the detection wheel 19 that cooperates with the driving wheel 14, the casing 1 is provided with a position sensor 20 for detecting the tooth position of the detection gear 18. The position sensor 20 is electrically connected to the controller, and is controlled by the controller according to The signal from the position sensor 20 controls the opening or closing of the feeding motor 13. That is, the position sensor 20 detects the teeth of the detection gear 18, and then the controller can calculate the rotation angle of the feeding gear 11. Since the capacity of each feeding chamber 12 is the same, the toner can be pushed into the mixing chamber. The amount of toner in cavity 3.

Taking into account the diversification of colors of modern plastic products, in order to mix the plastic particles into a specified color, more than one coloring device is provided, and the toner color of each coloring device is different. In practical applications, the equipment of this utility model will use six different colors of toner, namely white, red, yellow, blue, black and special designated colors.

In addition, the casing 1 can also be connected to an auxiliary device for injecting processing aids into the stirring chamber 3. The auxiliary device can be equipped with the same structure as the above-mentioned color material device.

Furthermore, the stirring device can adopt an existing common stirring structure. In this embodiment, the specific structure adopted by the stirring device is: the stirring device includes a stirring shaft 21 that is rotatably connected in the stirring chamber 3. The stirring shaft There are several stirring blades 22 distributed in the circumferential direction of 21. One end of the stirring shaft 21 is drivingly connected to the stirring motor 23 provided on the casing 1, and the stirring motor 23 drives the rotation of the stirring shaft 21.

In order to prevent the quantitative sub-cavity 7 from being connected to the unloading port 8 during the separation process from the feed channel 2, thereby causing the plastic particles to be unable to enter the mixing chamber 3 quantitatively, more than three partitions 6 must be evenly distributed in the circumferential direction. , that is, dividing the quantitative cavity into more than three quantitative sub-cavities 7;

However, in this embodiment, there are only two partitions 6 evenly distributed in the circumferential direction. In order to avoid causing the clinker particles to be unable to quantitatively enter the mixing chamber 3, the outer ends of the partitions 6 rotate away from the quantitative rotating shaft 5. An arc-shaped baffle 24 is formed by extending in the direction. The arc-shaped baffle 24 slides and fits on the inner wall surface of the dosing chamber, and the arc-shaped baffle 24 can completely cover the discharge end and the discharge port 8 of the feed channel 2 respectively. That is, during the process of separating the quantum chamber 7 from the feed channel 2, the arc-shaped baffle 24 will separate the quantitative quantum chamber 7 from the feeding port 8, thereby ensuring that the plastic particles are quantitatively put into the quantitative chamber 7 through the quantitative quantum chamber 7. inside the mixing chamber 3.

Furthermore, the specific driving method of the quantitative rotating shaft 5 is: one end of the quantitative rotating shaft 5 is connected to the driving motor 25 provided on the casing 1, and the driving motor 25 drives the rotation of the quantitative rotating shaft 5. Of course, considering that the overall load of the plastic particles is relatively large, in order to increase the rotational torque, the quantitative rotating shaft 5 can also be transmission connected to the drive motor 25 through a gear assembly.

In addition, the feed end of the discharge channel 4 of this equipment is connected to the injection molding machine, extruder or blow molding machine. In order to make this equipment have a material storage function, it is convenient for the injection molding machine, extruder or blow molding machine. Working continuously, a material storage chamber 26 is provided in the casing 1 between the mixing chamber 3 and the discharging channel 4. The mixing chamber 3 is connected to the material storage chamber 26 through the discharging port 9, and the discharging channel 4 is The feed port is provided at the bottom of the material storage cavity 26, that is, when the injection molding machine, extruder, or blow molding machine is not working, the fully mixed plastic particles will be stored in the material storage cavity 26 first.

Moreover, in order to effectively control the opening and closing of the valve device, in this embodiment, the specific structure adopted by the valve device is: the valve device includes a hinge shaft 27 that is rotatably connected to the casing 1. The hinge shaft 27 The upper sleeve is equipped with a valve plate 28 that can completely block the discharge port 9. One end of the hinge shaft 27 is connected to the valve motor, and the valve motor drives the hinge shaft 27 and the valve plate 28 to reciprocate.

Furthermore, in order to facilitate external operators to observe the working conditions in the dosing chamber, the mixing chamber 3 and the storage chamber 26, the specific structure adopted by the casing 1 is: the casing 1 includes a rear housing 29 and a cover. The front cover 30 is mounted on the front end of the rear housing 29 and is made of transparent material. The dosing chamber, the stirring chamber 3 and the storage chamber 26 are formed between the front cover 30 and the rear housing 29. The material channel 2, the discharging channel 4, the quantitative rotating shaft 5, the color material device, the stirring device, and the valve device are all arranged on the rear housing 29.

In addition, in the actual application process, in order to effectively remotely monitor the equipment, a controller is also included. The controller is connected to an external server for communication. The stirring device, coloring device and valve device are all electrically connected to the controller. The controller controls the working status of the mixing device and the coloring device according to the communication information of the external server and the opening and closing times of the valve device. Among them, the external server can be controlled by the manufacturer, and the color matching machine is supplied to the manufacturer or processing manufacturer on a rental basis. The manufacturer can use the external server to transmit the color mixing formula of the specified color to the controller, and the controller can use the color matching formula according to the color matching. The color formula controls the color material device to work; at the same time, the external server can determine the total amount of plastic color matching for the color matching device based on the number of opening and closing of the valve device, and then monitor the processing volume of the OEM.

The above embodiment is only one of the preferred embodiments of the present invention, and does not limit the implementation scope of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be covered. Within the protection scope of the present utility model.

Claims

An automatic mixing and color matching machine for plastic particles, which is characterized in that it includes an organic casing (1), and a feeding channel (2), a dosing chamber, and a stirring chamber (3) are arranged in the casing (1) from top to bottom. ) and a discharging channel (4). A quantitative rotating shaft (5) is rotatably connected in the quantitative cavity. Several quantitative rotating shafts (5) are evenly distributed in the circumferential direction and are provided with partitions (6) along their radial direction. Two adjacent partitions (6) forms an independent quantitative cavity (7) with the inner wall of the quantitative cavity. The discharge end of the feed channel (2) is connected to the top of the quantitative cavity, and this end port can be connected to one of the quantitative cavity (2). 7) overlap, the quantitative chamber and the stirring chamber (3) are connected through the discharge port (8), and the discharge port (8) can be overlapped by one of the quantitative sub-chambers (7), and the casing (1) is connected There is a coloring device capable of injecting toner into the stirring chamber (3). The stirring chamber (3) is provided with a stirring device capable of mixing and stirring plastic particles and toner. The bottom of the stirring chamber (3) is provided with an outlet. The feed end of the material channel (4) is connected to the discharge port (9), and the casing (1) is provided with a valve device that can block or conduct the discharge port (9).
An automatic mixing and color matching machine for plastic particles according to claim 1, characterized in that: the color material device includes a powder storage box (10) filled with toner, and the powder storage box (10) The bottom of the box is provided with a powder outlet trough on one side that is connected to the mixing chamber (3). The powder outlet trough is rotatably connected to a feeding gear (11) partially located in the mixing chamber (3). The teeth of the feeding gear (11) are in contact with the mixing chamber (3). A feeding cavity (12) is formed between the side walls of the powder discharge chute, and the feeding gear (11) is driven by a power device to rotate.
An automatic mixing and color matching machine for plastic particles according to claim 2, characterized in that: the power device includes a feeding motor (13) fixed on the casing (1), and the output shaft of the feeding motor (13) A driving wheel (14) is installed, a transmission shaft (15) is rotatably connected to the powder storage box body (10), the feeding gear (11) is sleeved on the upper end of the transmission shaft (15), and the transmission shaft (15) The lower end is equipped with a driven wheel (16) that is matched with the driving wheel (14).
An automatic mixing and color matching machine for plastic particles according to claim 3, characterized in that: a control shaft (17) is rotatably connected to the casing (1), and a detection gear (18) is mounted on the control shaft (17). , and a detection wheel (19) that is matched with the driving wheel (14). The casing (1) is provided with a position sensor (20) for detecting the tooth position of the detection gear (18). The position sensor (20) It is electrically connected to the controller, and the controller controls the opening or closing of the feeding motor (13) according to the signal of the position sensor (20).
An automatic mixing and color matching machine for plastic particles according to claim 1, characterized in that: the stirring device includes a stirring shaft (21) rotatably connected in the stirring chamber (3), and the stirring shaft (21) is circumferentially There are several stirring blades (22) distributed. One end of the stirring shaft (21) is connected to the stirring motor (23) provided on the casing (1). The stirring motor (23) drives the rotation of the stirring shaft (21). .
An automatic mixing and color matching machine for plastic particles according to claim 1, characterized in that: an arc-shaped baffle (24) is formed at the outer end of the partition (6) extending along the rotation direction away from the quantitative rotating shaft (5). , the arc-shaped baffle (24) slides and fits on the inner wall of the quantitative chamber, and the arc-shaped baffle (24) can completely cover the discharge end and the discharge port (8) of the feed channel (2) respectively, and the quantitative One end of the rotating shaft (5) is connected to a driving motor (25) provided on the casing (1), and the driving motor (25) drives the fixed rotation of the rotating shaft (5).
An automatic mixing and color matching machine for plastic particles according to claim 1, characterized in that: a storage chamber ( 26), the stirring chamber (3) is connected with the storage chamber (26) through the discharge port (9), and the feed port of the discharge channel (4) is opened at the bottom of the storage chamber (26).
An automatic mixing and color matching machine for plastic particles according to claim 1 or 7, characterized in that: the valve device includes a hinge shaft (27) rotatably connected to the casing (1), and the hinge shaft (27) The set has a valve plate (28) that can completely block the discharge port (9). One end of the hinge shaft (27) is connected to the valve motor. The valve motor drives the hinge shaft (27) and the valve plate (28) to reciprocate. .
An automatic mixing and color matching machine for plastic particles according to claim 7, characterized in that: the casing (1) includes a rear casing (29), and a cover is mounted on the front end surface of the rear casing (29). The front cover (30) is made of transparent material. The quantitative chamber, the stirring chamber (3) and the material storage chamber (26) are formed between the front cover (30) and the rear housing (29). The material channel (2), the discharging channel (4), the quantitative rotating shaft (5), the color material device, the stirring device, and the valve device are all arranged on the rear housing (29).
An automatic mixing and color matching machine for plastic particles according to claim 1, characterized in that: it also includes a controller, the controller is communicatively connected to an external server, and the stirring device, color device and valve device are all electrically connected to the controller. The controller controls the working status of the mixing device and the coloring device based on the communication information of the external server and the opening and closing times of the valve device.