Plastic particle color mixing machine for plastic part production

Abstract

The invention discloses a plastic particle color mixing machine for plastic part production, and relates to the technical field of plastic particle production, the plastic particle color mixing machine comprises a mixing barrel with a top opening, an annular piece is arranged at the center of the top end of the mixing barrel, a plurality of inverted U-shaped frames are arranged between the annular piece and the top edge of the mixing barrel, and a scraping ring is movably arranged between the mixing barrel and the annular piece; a stirring assembly is installed in the mixing barrel, a power mechanism is installed at the top of the annular piece, the power mechanism drives the scraping ring to ascend and descend in a reciprocating mode when driving the stirring assembly to rotate, and an air blowing and sucking mechanism connected with the annular piece and the stirring assembly is installed on the outer barrel wall of the mixing barrel. And when the scraping ring ascends, the annular piece absorbs the toner raised in the mixing barrel through the air blowing and sucking mechanism. According to the plastic particle color mixing device, toner raised due to stirring in the material mixing barrel can be conveniently absorbed, the absorbed toner is sprayed to plastic particles again, and the adhered toner can be conveniently and comprehensively scraped, so that the color mixing efficiency and the color mixing effect of the plastic particles are effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic particle production, and particularly relates to a plastic particle color mixing machine for plastic part production. BACKGROUND

[0002] Since plastic has excellent impact resistance and is widely used in the automobile field as a component material, in order to achieve the desired color matching effect, plastic raw material particles and color powder are jointly placed in a color mixing machine for uniform mixing in the production and processing process, the color of the material is changed through the sufficient fusion of the color powder and the plastic particles, and finally the plastic part meets the established color requirement.

[0003] In the patent with the patent number CN112092226B, a raw material plastic particle color mixing machine for automobile plastic part production and processing is disclosed, the cleaning device is movably connected with the bearing, the cleaning teeth in the device scrape the color powder on the inner wall of the roller, which is beneficial to reducing the condensation of the color powder on the inner wall of the roller and to fully mixing the plastic particles with the color material, so that the yield of the plastic part production and processing is improved; however, the technical solution still has the following defects: 1. Although the cleaning teeth can scrape the color powder on the inner wall of the roller, the color powder is easily raised in the device during the stirring and mixing process, the raised part of the color powder floats in the device, so that the part of the color powder is difficult to fully mix with the plastic particles, thereby affecting the color mixing effect; 2. There is a gap between the adjacent cleaning teeth, and the movable range of the cleaning teeth is limited, so that the color powder condensed on the upper inner wall of the roller is difficult to be fully scraped. SUMMARY

[0004] The application provides a plastic particle color mixing machine for plastic part production, which can solve the problems that the color powder is easily raised in the stirring process of the plastic particle color mixing machine in the prior art and the color powder condensed on the inner wall of the device is difficult to be fully scraped.

[0005] The purpose of the application can be achieved by the following technical solution: A plastic particle color mixing machine for plastic part production, comprising a mixing cylinder with an open top, an annular part is arranged at the center of the top end of the mixing cylinder, a plurality of inverted U-shaped frames are arranged between the annular part and the edge of the top of the mixing cylinder, a scraping ring is movably arranged between the mixing cylinder and the annular part, a stirring assembly is arranged in the mixing cylinder, a power mechanism is arranged on the top of the annular part, the power mechanism drives the stirring assembly to rotate and drives the scraping ring to reciprocatingly ascend and descend, a blowing and suction mechanism is arranged on the outer cylinder wall of the mixing cylinder and connected with the annular part and the stirring assembly, the annular part absorbs the color powder raised in the mixing cylinder through the blowing and suction mechanism when the scraping ring ascends, and the stirring assembly sprays the absorbed color powder out through the blowing and suction mechanism when the scraping ring descends.

[0006] As a further scheme of the present application: the ring-shaped member comprises a ring-shaped plate with a through hole, a ring-shaped cavity and powder suction ports, the through hole is arranged at the center of the ring-shaped plate, the ring-shaped cavity is arranged in the ring-shaped plate, and the ring-shaped cavity is not communicated with the through hole, and a plurality of powder suction ports are arranged at the bottom of the ring-shaped cavity.

[0007] As a further scheme of the present application: the stirring assembly comprises a rotating pipe, a stirring rod with arc-shaped grooves, a cavity, branch pipes and powder blowing ports, the rotating pipe is coaxially arranged in the mixing barrel, the top end of the rotating pipe extends above the ring-shaped plate through the through hole, a plurality of branch pipes are uniformly distributed at the side wall of the rotating pipe, the branch pipes are connected with the stirring rod, a plurality of arc-shaped grooves are circumferentially distributed along the rod wall of the stirring rod, the cavity is arranged in the stirring rod, the cavity is communicated with the rotating pipe through the branch pipes, and a plurality of powder blowing ports are arranged at the groove bottom of the arc-shaped grooves and communicated with the cavity.

[0008] As a further scheme of the present application: the power mechanism comprises a driving motor, chain wheels, a chain, a limiting lifting piece, a reciprocating screw rod and a linkage assembly, the driving motor is installed at the top of the ring-shaped member near the edge, two chain wheels are respectively sleeved at the top end of the rotating pipe and the output shaft of the driving motor, and the two chain wheels are connected through the chain, the limiting lifting piece is slidably sleeved with the inverted U-shaped frame, and the limiting lifting piece is connected with the top of the scraping ring, the driving motor is connected with the reciprocating screw rod through the linkage assembly, and the limiting lifting piece is threadedly sleeved with the reciprocating screw rod.

[0009] As a further scheme of the present application: the blowing and suction mechanism comprises a hollow jacket with a ring-shaped port, a ring-shaped piston, a connecting frame, a one-way air suction piece and a one-way air blowing piece, the hollow jacket is sleeved on the outer barrel wall of the mixing barrel near the top end, the ring-shaped port is arranged at the top of the hollow jacket, the ring-shaped piston is slidably connected with the inner cavity of the hollow jacket, one end of the connecting frame is connected with the top of the ring-shaped piston, the other end penetrates through the ring-shaped port and is connected with the top of the scraping ring along the edge, the one-way air suction piece is installed between the hollow jacket and the ring-shaped plate, and the one-way air blowing piece is installed between the hollow jacket and the rotating pipe.

[0010] As a further scheme of the present application: the limiting lifting piece comprises a screw rod sleeve, L-shaped frames, a cross rod and a guide sleeve, the screw rod sleeve is located directly above the rotating pipe, the screw rod sleeve is threadedly sleeved with the reciprocating screw rod, a plurality of L-shaped frames are circumferentially distributed along the screw rod sleeve, the other end of the L-shaped frame is connected with the top of the scraping ring, the guide sleeve is slidably sleeved with the inverted U-shaped frame, and the guide sleeve is connected with the side wall of the guide sleeve through the cross rod.

[0011] As a further scheme of the present application: the linkage assembly comprises a toothed annular cover, a gear and a sleeve ring, a plurality of the teeth are evenly distributed along the inner side wall of the annular cover, the top of the annular cover is coaxially connected with the bottom end of the reciprocating lead screw, the gear is sleeved on the top end of the output shaft of the driving motor, and the gear is meshed with the teeth on the inner side of the annular cover, the sleeve ring is sleeved on the outer side of the annular cover, and the annular cover is rotatably connected with the sleeve ring through a bearing, and the outer side wall of the sleeve ring is fixedly connected with the side wall of the inverted U-shaped frame.

[0012] As a further scheme of the present application: the side wall of the mixing barrel is provided with a feeding port, and the bottom center of the mixing barrel is provided with a discharging port.

[0013] As a further scheme of the present application: the one-way air suction member comprises a plurality of air suction pipes and a first one-way valve, the air suction pipes are distributed in a circle along the bottom of the hollow jacket, one end of the air suction pipe is communicated with the inner cavity of the hollow jacket, the other end penetrates through the side wall of the mixing barrel and is communicated with the annular cavity, and the first one-way valve is installed at the position of the air suction pipe close to the hollow jacket.

[0014] As a further scheme of the present application: the one-way air blowing member comprises a blowing pipe and a second one-way valve, one end of the blowing pipe is communicated with the inner cavity of the hollow jacket, the other end penetrates through the side wall close to the bottom end of the mixing barrel and is communicated with the bottom end of the rotating pipe, the blowing pipe and the rotating pipe are rotatably connected through a sealing bearing, and the second one-way valve is installed at the position of the blowing pipe close to the hollow jacket.

[0015] The present application has the following advantages: 1、In the present application, the power mechanism not only facilitates the rotation of the stirring assembly at a high speed, effectively ensures the mixing effect of the plastic particles and toner in the mixing barrel, but also facilitates the lifting of the linkage scraping ring at a relatively moderate speed, avoiding the lifting of the scraping ring at a high speed when the stirring assembly rotates at a high speed. Since the toner adheres to the inner wall of the scraping ring during the stirring process, the frequent lifting of the scraping ring will exacerbate the wear and tear of the scraping ring, affecting the toner scraping effect.

[0016] 2、In the present application, the position fixing ring member allows the scraping ring to slide relative to the position fixing ring member when the scraping ring rises, and the outer edge of the ring member facilitates the complete scraping of the toner adhering to the inner side wall of the scraping ring. Since the plastic particles will rebound in the mixing barrel after the scraping ring rises and continues to stir, the toner will adhere to the inner side wall near the top of the mixing barrel. The scraping ring can be easily reset by descending, which can completely scrape the adhered toner, so that the toner is not easily wasted due to adhesion, and the color mixing effect is improved.

[0017] 3. In this invention, the blowing and suction mechanism not only enables the scraper ring to absorb the color powder that is stirred up in the mixing cylinder when it rises, thus avoiding the dust emission problem of traditional open mixing cylinders and reducing raw material waste, but also facilitates the re-spraying of the color powder absorbed by the rising scraper ring when it descends, in conjunction with the stirring component. Since the color powder that floats due to being stirred up can be continuously adsorbed, and the adsorbed color powder can be sprayed out through the stirring component, the sprayed color powder can fully contact the stirred plastic particles, which not only effectively improves the color mixing efficiency of the plastic particles, but also helps to improve the color mixing effect of the plastic particles. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a first-view perspective perspective view of a plastic granule color mixing machine for plastic parts production according to the present invention; Figure 2 This is a second-view perspective perspective view of a plastic granule color mixing machine for plastic parts production according to the present invention; Figure 3 This is a first-view cross-sectional view of a plastic granule color mixing machine for plastic parts production according to the present invention; Figure 4 This is a cross-sectional view from a second perspective of a plastic granule color mixing machine for plastic parts production according to the present invention; Figure 5 This is a cross-sectional view of the annular component in a plastic granule color mixing machine for plastic parts production according to the present invention; Figure 6 This is a perspective view of a stirring assembly in a plastic granule color mixing machine for plastic parts production according to the present invention. Figure 7 This is a cross-sectional view of the connection between the lever and the branch pipe in a plastic granule color mixing machine for plastic parts production according to the present invention. Figure 8 This is a perspective view of the connection between the power mechanism and the rotating tube 51 in a plastic granule color mixing machine for plastic parts production according to the present invention. Figure 9 This is a perspective view of the connection between the power mechanism and the annular plate in a plastic granule color mixing machine for plastic parts production according to the present invention.

[0020] As shown in the figure: 1, mixing barrel; 2, ring; 21, through hole; 22, ring plate; 23, annular cavity; 24, suction port; 3, inverted U-shaped frame; 4, scraping ring; 5, stirring assembly; 51, rotating pipe; 52, arc-shaped groove; 53, lever; 54, cavity; 55, branch pipe; 56, powder blowing port; 6, power mechanism; 61, driving motor; 62, chain wheel; 63, chain; 64, limiting lifting piece; 641, screw sleeve; 642, L-shaped frame; 643, cross bar; 644, guide sleeve; 65, reciprocating screw; 66, linkage assembly; 661, gear tooth; 662, ring cover; 663, gear; 664, collar; 7, blowing and suction mechanism; 71, annular port; 72, hollow jacket; 73, annular piston; 74, connecting frame; 75, one-way air suction piece; 751, air suction pipe; 752, first one-way valve; 76, one-way blowing piece; 761, blowing pipe; 762, second one-way valve; 8, feed port; 9, discharge port. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application are described in detail below, but it should be understood that the scope of protection of the present application is not limited by the specific embodiments.

[0022] As Figures 1-9 shown, the present application is a kind of plastic particle color mixer for plastic part production, including the top opening mixing barrel 1, the top center of mixing barrel 1 is equipped with ring 2, ring 2 is installed with multiple inverted U-shaped frame 3 between mixing barrel 1 top edge, mixing barrel 1 and ring 2 are movably provided with scraping ring 4, and mixing barrel 1 is installed with stirring assembly 5, the top of ring 2 is installed with power mechanism 6, power mechanism 6 drives stirring assembly 5 to rotate and drives scraping ring 4 to reciprocatingly lift, the outer cylinder wall of mixing barrel 1 is installed with blowing and suction mechanism 7 connected with ring 2 and stirring assembly 5 respectively, when scraping ring 4 rises, ring 2 absorbs toner raised in mixing barrel 1 through blowing and suction mechanism 7, when scraping ring 4 descends, stirring assembly 5 re-sprays absorbed toner through blowing and suction mechanism 7.

[0023] It should be noted that, in use, plastic particles and toner are added to mixing barrel 1, and then power mechanism 6 is started to drive stirring assembly 5 to rotate while reciprocatingly lifting scraping ring 4, due to the high-speed rotating stirring effect, plastic particles will be extruded, and the extruded plastic particles will bounce away, so that the plastic particles on the top layer in mixing barrel 1 will bounce back in mixing barrel 1 due to the elastic force of the toner adhered to the outside, so that the toner is easy to adhere to the inner side wall of scraping ring 4, in the embodiment, the outer wall of scraping ring 4 is provided with arc-shaped groove 52, and the inner wall of scraping ring 4 is provided with lever 53, so that the toner adhered to the inner side wall of scraping ring 4 is scraped off by lever 53 when scraping ring 4 rises, and the toner scraped off by lever 53 is re-sprayed by stirring assembly 5 through blowing and suction mechanism 7 when scraping ring 4 descends. Figure 1As the initial state, firstly, the stirring assembly 5 rotates and the linkage scraping ring 4 rises, so that the scraping ring 4 and the annular part 2 slide relative to each other, the color powder adhering to the inner wall of the scraping ring 4 is scraped off in the annular part 2, and the color powder is easily adhered to the inner wall of the mixing barrel 1 near the top after the annular part 2 rises, and the color powder adhered to the part is scraped off when the scraping ring 4 is lowered and reset; The scraping ring 4 reciprocally rises and falls, and cooperates with the blowing and sucking mechanism 7, so that the scraping ring 4 absorbs the color powder stirred in the mixing barrel 1 when rising, and the stirring assembly 5 sprays the color powder absorbed when rising when the scraping ring 4 falls, so that the sprayed color powder can fully contact with the plastic particles stirred, thereby effectively improving the color mixing efficiency and effect of the plastic particles.

[0024] As shown in Figures 3-5 , the annular part 2 includes an annular plate 22 with a through hole 21, an annular cavity 23, and a powder suction port 24, the through hole 21 is arranged at the center of the annular plate 22, the annular cavity 23 is arranged in the annular plate 22, and the annular cavity 23 is not communicated with the through hole 21, and the plurality of powder suction ports 24 are arranged at the bottom of the annular cavity 23.

[0025] It should be noted that the annular plate 22 is coaxially arranged with the mixing barrel 1, the through hole 21 coincides with the axis of the annular plate 22, and the air in the annular cavity 23 is extracted to be in a negative pressure state, and the plurality of powder suction ports 24 are convenient for absorbing the color powder stirred in the mixing barrel 1.

[0026] As shown in Figures 3-4 and Figures 6-7 , the stirring assembly 5 includes a rotating pipe 51, a stirring rod 53 with an arc-shaped groove 52, a cavity 54, a branch pipe 55, and a powder blowing port 56, the rotating pipe 51 is coaxially arranged in the mixing barrel 1, and the top end of the rotating pipe 51 extends above the annular plate 22 through the through hole 21, the plurality of branch pipes 55 are uniformly distributed on the side wall of the rotating pipe 51, and the branch pipes 55 are connected with the stirring rod 53, the plurality of arc-shaped grooves 52 are distributed along the wall of the stirring rod 53, the cavity 54 is arranged in the stirring rod 53, and the cavity 54 is communicated with the rotating pipe 51 through the branch pipe 55, and the plurality of powder blowing ports 56 are arranged at the groove bottom of the arc-shaped groove 52, and the powder blowing ports 56 are communicated with the cavity 54.

[0027] It should be noted that in the embodiment, the number of arc-shaped grooves 52 on each poking rod 53 is four. The arc-shaped grooves 52 arranged on the outer side wall of the poking rod 53 can effectively stir the plastic particles, ensure the stirring effect, and facilitate reducing the resistance during stirring. The toner raised in the mixing barrel 1 is injected into the rotating pipe 51 after being absorbed, so that the toner enters the cavity 54 of the poking rod 53 through each branch pipe 55, and finally the toner is blown to the stirred plastic particles through the blowing ports 56, which is beneficial to improve the color mixing efficiency and color mixing effect.

[0028] As shown in Figures 1-2 and Figure 8 , the power mechanism 6 includes a driving motor 61, a chain wheel 62, a chain 63, a limiting lifting piece 64, a reciprocating screw rod 65, and a linkage assembly 66. The driving motor 61 is installed on the top of the annular piece 2 near the edge. Two chain wheels 62 are respectively sleeved on the top end of the rotating pipe 51 and the output shaft of the driving motor 61, and the two chain wheels 62 are connected by the chain 63. The limiting lifting piece 64 is slidably sleeved with the inverted U-shaped frame 3, and the limiting lifting piece 64 is connected with the top of the scraping ring 4. The driving motor 61 is connected with the reciprocating screw rod 65 through the linkage assembly 66, and the limiting lifting piece 64 is threadedly sleeved with the reciprocating screw rod 65.

[0029] It should be noted that the driving motor 61 cooperates with the chain wheel 62 and the chain 63 to drive, so that the rotating pipe 51 rotates at a high speed, thereby ensuring the mixing and stirring effect of the plastic particles. In addition, the driving motor 61 cooperates with the linkage assembly 66 to drive the reciprocating screw rod 65 to rotate at a low speed when working, so that the limiting lifting piece 64 drives the scraping ring 4 to reciprocate at a moderate speed, thereby facilitating the scraping of the toner adhered to the inner wall of the scraping ring 4 by the annular piece 2 when rising, and facilitating the scraping of the toner adhered to the inner wall of the mixing barrel 1 by the scraping ring 4 itself when descending.

[0030] As shown in Figures 2-4 , the blowing and sucking mechanism 7 includes a hollow jacket 72 with an annular port 71, an annular piston 73, a connecting frame 74, a one-way air suction piece 75, and a one-way air blowing piece 76. The hollow jacket 72 is sleeved on the outer cylinder wall of the mixing barrel 1 near the top end. The annular port 71 is formed on the top of the hollow jacket 72. The annular piston 73 is slidably connected with the inner cavity of the hollow jacket 72. One end of the connecting frame 74 is connected with the top of the annular piston 73, and the other end passes through the annular port 71 and is connected with the top of the scraping ring 4 along the edge. The one-way air suction piece 75 is installed between the hollow jacket 72 and the annular plate 22. The one-way air blowing piece 76 is installed between the hollow jacket 72 and the rotating pipe 51.

[0031] It should be noted that the scraper ring 4 is driven to reciprocate in the hollow jacket 72 by the connecting frame 74 during reciprocating lifting and lowering, in this embodiment, the cross section of the annular piston 73 is equal to the inner cross section of the hollow jacket 72, when the annular piston 73 slides upward, the color powder lifted in the mixing barrel 1 is absorbed by the one-way air suction member 75 cooperating with the annular plate 22, when the annular piston 73 slides downward, the absorbed color powder is sprayed out again by the one-way air blowing member 76 cooperating with the stirring assembly 5.

[0032] As shown in Figure 4 and Figure 9 , the limiting lifting member 64 includes a lead screw sleeve 641, an L-shaped frame 642, a cross rod 643, and a guide sleeve 644, the lead screw sleeve 641 is located directly above the rotating pipe 51, and the lead screw sleeve 641 is threadedly connected with the reciprocating lead screw 65, a plurality of L-shaped frames 642 are distributed circumferentially along the lead screw sleeve 641, and the other end of the L-shaped frame 642 is connected with the top of the scraper ring 4, the guide sleeve 644 is slidably connected with the inverted U-shaped frame 3, and the guide sleeve 644 is connected with the side wall of the guide sleeve 644 through the cross rod 643.

[0033] It should be noted that the lead screw sleeve 641 can only be lifted and lowered along the height direction of the inverted U-shaped frame 3 by the cross rod 643 and the guide sleeve 644, so that the rotational freedom of the lead screw sleeve 641 is limited, so that the reciprocating lead screw 65 rotates to drive the lead screw sleeve 641 to reciprocate, and the L-shaped frame 642 can drive the lead screw sleeve 641 to reciprocate synchronously.

[0034] As shown in Figure 4 and Figure 8 , the linkage assembly 66 includes a toothed annular cover 662, a gear 663, and a sleeve ring 664, a plurality of teeth 661 are evenly distributed circumferentially along the inner side wall of the annular cover 662, the top of the annular cover 662 is coaxially connected with the bottom end of the reciprocating lead screw 65, the gear 663 is sleeved on the top end of the output shaft of the driving motor 61, and the gear 663 is meshed with the teeth 661 on the inner side of the annular cover 662, the sleeve ring 664 is sleeved on the outer side of the annular cover 662, and the annular cover 662 is rotatably connected with the sleeve ring 664 through a bearing, and the outer side wall of the sleeve ring 664 is fixedly connected with the side wall of the inverted U-shaped frame 3.

[0035] It should be noted that the driving motor 61 rotates to drive the gear 663 to rotate, in this embodiment, the teeth 661 circumferentially distributed on the inner side of the annular cover 662 have a higher transmission than the gear 663, that is, when the gear 663 rotates at a high speed, the annular cover 662 rotates at a low speed, the sleeve ring 664 is used to improve the stability of the position of the annular cover 662, so that it can rotate stably, and the annular cover 662 rotates to drive the reciprocating lead screw 65 to rotate synchronously, so that the scraper ring 4 is driven to reciprocate during driving the stirring assembly 5 to rotate.

[0036] like Figures 2-3 As shown, a feed inlet 8 is installed on the side wall of the mixing cylinder 1, and a discharge outlet 9 is installed at the center of the bottom of the mixing cylinder 1.

[0037] It should be noted that in this embodiment, the lower end of the feed port 8 is close to the bottom end of the scraper ring 4. The feed port 8 is used to conveniently add plastic particles and color powder into the mixing cylinder 1. After the color mixing is completed, the discharge port 9 is opened to conveniently discharge the mixed plastic particles.

[0038] like Figures 2-3 and Figure 5 As shown, the one-way suction component 75 includes a suction pipe 751 and a first one-way valve 752. Multiple suction pipes 751 are distributed circumferentially along the bottom of the hollow jacket 72. One end of the suction pipe 751 is connected to the inner cavity of the hollow jacket 72, and the other end passes through the side wall of the mixing cylinder 1 and is connected to the annular cavity 23. The first one-way valve 752 is installed at the position of the suction pipe 751 near the hollow jacket 72.

[0039] It should be noted that in this embodiment, there are three suction pipes 751. When the annular piston 73 is lifted, the annular cavity 23 is under negative pressure, which, together with the powder suction port 24, facilitates the suction of the color powder raised in the mixing cylinder 1. The suction color powder enters the hollow jacket 72 through the suction pipe 751. The first one-way valve 752 ensures that the color powder will not flow out through the suction pipe 751 when the annular piston 73 is pressed down.

[0040] like Figures 2-4 As shown, the one-way air blowing component 76 includes an air blowing pipe 761 and a second one-way valve 762. One end of the air blowing pipe 761 is connected to the inner cavity of the hollow jacket 72, and the other end passes through the side wall of the mixing cylinder 1 near the bottom and is connected to the bottom of the rotating pipe 51. The air blowing pipe 761 and the rotating pipe 51 are rotatably connected by a sealed bearing. The second one-way valve 762 is installed on the air blowing pipe 761 near the hollow jacket 72.

[0041] It should be noted that after the pigment is drawn into the hollow jacket 72, as the annular piston 73 is pressed down, the airflow can carry the pigment through the air blowing pipe 761 into the rotary pipe 51. The second one-way valve 762 ensures that the pigment will not be drawn into the air blowing pipe 761 when the annular piston 73 rises.

[0042] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A plastic particle color mixer for plastic part production, comprising a top-open mixing cylinder (1), characterized in that, The mixing barrel (1) top center is equipped with a ring (2), the ring (2) is installed with multiple inverted U-shaped frames (3) between the top of mixing barrel (1) and along the edge, the mixing barrel (1) and the ring (2) are movably provided with a scraping ring (4), and the mixing barrel (1) is installed with a stirring assembly (5), the top of the ring (2) is installed with a power mechanism (6), the power mechanism (6) drives the stirring assembly (5) to rotate and drives the scraping ring (4) to reciprocatingly lift, the outer cylinder wall of the mixing barrel (1) is installed with a blowing and suction mechanism (7) connected with the ring (2) and the stirring assembly (5) respectively, the ring (2) absorbs the toner raised in the mixing barrel (1) through the blowing and suction mechanism (7) when the scraping ring (4) rises, and the stirring assembly (5) sprays the absorbed toner out again through the blowing and suction mechanism (7) when the scraping ring (4) falls.

2. The plastic particle color mixer for plastic part production according to claim 1, characterized in that, The ring (2) comprises a ring-shaped plate (22) with a through hole (21), a ring-shaped cavity (23) and a toner suction port (24), the through hole (21) is arranged at the center of the ring-shaped plate (22), the ring-shaped cavity (23) is arranged in the ring-shaped plate (22), and the ring-shaped cavity (23) is not communicated with the through hole (21), and a plurality of toner suction ports (24) are arranged at the bottom of the ring-shaped cavity (23).

3. The plastic particle color mixer for plastic part production according to claim 2, characterized in that, The stirring assembly (5) comprises a rotating pipe (51), a lever (53) with an arc-shaped groove (52), a cavity (54), a branch pipe (55) and a toner blowing port (56), the rotating pipe (51) is coaxially arranged in the mixing barrel (1), and the top end of the rotating pipe (51) extends above the ring-shaped plate (22) through the through hole (21), a plurality of branch pipes (55) are uniformly distributed at the side wall of the rotating pipe (51), and the branch pipes (55) are connected with the lever (53), a plurality of arc-shaped grooves (52) are circumferentially distributed along the rod wall of the lever (53), the cavity (54) is arranged in the lever (53), and the cavity (54) is communicated with the rotating pipe (51) through the branch pipe (55), and a plurality of toner blowing ports (56) are arranged at the groove bottom of the arc-shaped groove (52), and the toner blowing ports (56) are communicated with the cavity (54).

4. The plastic particle color mixer for plastic part production according to claim 3, characterized in that, The power mechanism (6) comprises a driving motor (61), a chain wheel (62), a chain (63), a limiting lifting piece (64), a reciprocating screw rod (65) and a linkage assembly (66), the driving motor (61) is installed at the top of the ring (2) near the edge, two chain wheels (62) are respectively sleeved at the top end of the rotating pipe (51) and the output shaft of the driving motor (61), and the two chain wheels (62) are connected through the chain (63), the limiting lifting piece (64) is slidably sleeved with the inverted U-shaped frame (3), and the limiting lifting piece (64) is connected with the top of the scraping ring (4), the driving motor (61) is connected with the reciprocating screw rod (65) through the linkage assembly (66), and the limiting lifting piece (64) is threadedly sleeved with the reciprocating screw rod (65).

5. The plastic particle color mixer for plastic part production according to claim 3, wherein, The blowing and sucking mechanism (7) comprises a hollow jacket (72) with an annular port (71), an annular piston (73), a connecting frame (74), a one-way air suction member (75) and a one-way air blowing member (76), the hollow jacket (72) is sleeved on the outer cylinder wall of the mixing barrel (1) near the top end, the annular port (71) is arranged on the top of the hollow jacket (72), the annular piston (73) is in sliding connection with the inner cavity of the hollow jacket (72), one end of the connecting frame (74) is connected with the top of the annular piston (73), the other end penetrates through the annular port (71) and is connected with the top of the scraping ring (4) along the edge, the one-way air suction member (75) is installed between the hollow jacket (72) and the annular plate (22), and the one-way air blowing member (76) is installed between the hollow jacket (72) and the rotating pipe (51).

6. The plastic particle color mixer for plastic part production according to claim 4, wherein The limiting lifting member (64) comprises a lead screw sleeve (641), an L-shaped frame (642), a cross rod (643) and a guide sleeve (644), the lead screw sleeve (641) is located directly above the rotating pipe (51), the lead screw sleeve (641) is in threaded connection with the reciprocating lead screw (65), a plurality of L-shaped frames (642) are distributed in the circumferential direction of the lead screw sleeve (641), one end of the L-shaped frame (642) is connected with the top of the scraping ring (4), the guide sleeve (644) is in sliding connection with the inverted U-shaped frame (3), and the guide sleeve (644) is connected with the side wall of the guide sleeve (644) through the cross rod (643).

7. The plastic particle color mixer for plastic part production according to claim 4, wherein The linkage assembly (66) comprises an annular cover (662) with teeth (661), a gear (663) and a sleeve ring (664), a plurality of teeth (661) are uniformly distributed in the circumferential direction of the inner side wall of the annular cover (662), the top of the annular cover (662) is coaxially connected with the bottom end of the reciprocating lead screw (65), the gear (663) is sleeved on the top end of the output shaft of the driving motor (61), the gear (663) is in meshing connection with the teeth (661) on the inner side of the annular cover (662), the sleeve ring (664) is sleeved on the outer side of the annular cover (662), the annular cover (662) is rotatably connected with the sleeve ring (664) through a bearing, and the outer side wall of the sleeve ring (664) is fixedly connected with the side wall of the inverted U-shaped frame (3).

8. The plastic particle color mixer for plastic part production according to claim 1, wherein, The side wall of the mixing barrel (1) is provided with a feeding port (8), and the bottom center of the mixing barrel (1) is provided with a discharging port (9).

9. The plastic particle color mixer for plastic part production according to claim 5, wherein, The one-way air suction member (75) comprises air suction pipes (751) and first one-way valves (752), a plurality of air suction pipes (751) are distributed in the circumferential direction of the bottom of the hollow jacket (72), one end of the air suction pipe (751) is in communication with the inner cavity of the hollow jacket (72), the other end penetrates through the side wall of the mixing barrel (1) and is in communication with the annular cavity (23), and the first one-way valve (752) is installed at the position of the air suction pipe (751) close to the hollow jacket (72).

10. The plastic particle color mixer for plastic part production according to claim 5, wherein, The one-way blowing part (76) comprises a blowing pipe (761) and a second one-way valve (762), one end of the blowing pipe (761) is communicated with the inner cavity of the hollow jacket (72), the other end penetrates through the side wall of the mixing barrel (1) near the bottom end and is communicated with the bottom end of the rotating pipe (51), the blowing pipe (761) and the rotating pipe (51) are rotationally connected through a sealing bearing, and the second one-way valve (762) is installed at the position of the blowing pipe (761) near the hollow jacket (72).

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