A plastic color matching machine

Abstract

The application discloses a plastic color matching machine, which comprises a shell, a master batch feeding port is arranged on the top of the shell, a shoulder is formed on the upper right side of the shell, a color powder discharging device is arranged on the shoulder, a master batch quantitative bin, a stirring cavity and a finished product bin are arranged in the shell and are mutually penetrated, a first feeding control assembly is arranged between the master batch quantitative bin and the master batch feeding port, a second feeding control assembly is arranged between the stirring cavity and the master batch quantitative bin, a third feeding control assembly is arranged between the finished product bin and the stirring cavity, and a finished product discharging port is arranged on the bottom of the shell; the color powder discharging seat is integrated with a pushing device and a distributing device, a distributing disc with a plurality of material moving holes is arranged on the distributing device, the material moving holes load and transfer the color powder under the cooperation of the pushing rod, the accurate metering control of the color powder adding gram weight is achieved, and the color powder in the material moving holes is flushed into the falling powder hole in a blowing mode, so that the blockage is completely eliminated.

Description

Technical Field

[0001] This invention relates to the field of plastic processing equipment, and in particular to a plastic color matching machine. Background Technology

[0002] Plastic coloring is generally achieved by adding colored plastic granules during production. The coloring of plastic granules can be done by mixing and stirring a certain proportion of color powder with plastic granules according to the color specified by the customer using a plastic color mixing machine.

[0003] In the design of plastic color mixing machines, the metering and addition of color powder plays a crucial role. An existing Chinese utility model patent (authorization announcement number CN218019493U) discloses an automatic mixing and color mixing machine for plastic granules, which "includes a color mixing machine body with a mixing chamber and a color powder container. The color mixing machine body is provided with a circular-shaped powder outlet groove for connecting the mixing chamber and the color powder container. A powder outlet gear located in the mixing chamber is rotatably connected in the circular-shaped powder outlet groove. A powder-dispensing elastic component is provided in the mixing chamber. One end of the powder-dispensing elastic component is a free end and is located in the tooth gap between two teeth of the powder outlet gear. When the powder outlet gear rotates, the free end of the powder-dispensing elastic component located in the tooth gap of the previous tooth abuts against the corresponding tooth and elastically deforms to the next tooth gap." This invention uses a feeding component to continuously push the color powder into the powder outlet channel to avoid clogging. With the rotation of the powder outlet gear, the color powder can fill each feeding space and be transported into the mixing chamber as the powder outlet gear rotates. To avoid blockage, the free end of the powder-dispensing elastic component is placed in the tooth gap of the powder outlet gear. The powder outlet gear rotates relative to the powder-dispensing elastic component, causing the powder-dispensing elastic component to elastically deform and enter the next tooth gap, so as to promote the color powder to fall into the mixing chamber. However, the following problems still exist in actual use: 1. The transmission of the feeding component and the powder discharge gear is driven by the same motor through gear linkage, resulting in a complex structure. The rotation of the powder discharge gear cannot be adjusted independently, and the metering accuracy is not high. 2. There are gaps between the powder discharge gear and the pigment receiving tank and the upper ring seat. The lack of corresponding sealing measures causes pigment to easily get stuck, stick, and leak into the pigment receiving tank and the upper ring seat in the teeth of the powder discharge gear. 3. Although the powder-dispensing elastic component can promote the pigment to fall into the mixing chamber to a certain extent, the area that the powder-dispensing elastic component can contact is limited. There are still many places where the powder-dispensing elastic component cannot work. Furthermore, the powder-dispensing elastic component cannot be used for a long time and needs to be replaced, which is very troublesome.

[0004] Meanwhile, an existing Chinese utility model patent (authorization announcement number CN218432401U) discloses a plastic color powder container, which "includes a container body with a storage cavity, and the powder outlet end of the container body has a powder outlet port communicating with the storage cavity. A valve assembly is provided at the powder outlet port, and the valve assembly can block or open the powder outlet port." This utility model uses a valve assembly to block or open the powder outlet port, but its structure is complex, has many parts, and is costly.

[0005] Furthermore, a valve assembly for a plastic color matching machine disclosed in an existing Chinese utility model patent (authorization announcement number CN218928294U) "includes a material passage channel disposed on the machine body, a discharge partition disposed within the material passage channel, a first material passage window opened on the discharge partition, a valve plate slidably connected to the machine body, a second material passage window opened on the valve plate, one end of the valve plate being drively connected to a power source disposed on the machine body, the power source driving the valve plate to move back and forth, so as to achieve the overlap or stagger of the positions of the first and second material passage windows." This utility model's power source can drive the valve plate to move back and forth relative to the discharge partition with a relatively short drive stroke, allowing the first and second material passage windows to overlap to achieve the opening of the material passage channel; or allowing the first and second material passage windows to stagger to achieve the blocking of the material passage channel. Its overall structure is simple, low-cost, and not easily jammed by plastic particles. However, the structure has the following problems in actual use: 1. The structure is too complicated. It has a material passage with a material passage window on the machine body, and a valve plate with a material passage window driven by a power source is set below the material passage. This increases the cost, makes the operation too complicated, and artificially adds obstacles to the material feeding, resulting in a slower feeding speed, which is unnecessary; 2. The machine body has only one feed port, and the waste generated cannot be utilized in a timely manner.

[0006] Based on the above problems, this invention develops a plastic color mixing machine to make the addition of color powder more precise, eliminate color powder sticking, retention, blockage and leakage, make masterbatch feeding faster and the structure more optimized, and make effective use of waste materials. Summary of the Invention

[0007] The purpose of this invention is to provide a plastic color matching machine to solve the problems existing in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a plastic color matching machine, comprising a housing, characterized in that: a masterbatch inlet is provided at the top of the housing; a shoulder is formed on the upper right side of the housing next to the masterbatch inlet; a color powder feeding device is installed on the shoulder; a masterbatch metering chamber, a stirring chamber, and a finished product chamber are provided inside the housing, which are interconnected; a first feeding control component is provided between the masterbatch metering chamber and the masterbatch inlet; a second feeding control component is provided between the stirring chamber and the masterbatch metering chamber; a third feeding control component is provided between the finished product chamber and the stirring chamber; and a finished product outlet is provided at the bottom of the housing.

[0009] The color powder feeding device includes a color powder container, a pushing device, a dispensing device, and a color powder dispensing seat. The color powder container is installed upside down on the upper right end of the color powder dispensing seat, the pushing device is installed below the lower right end of the color powder dispensing seat, and the dispensing device is installed below the middle of the color powder dispensing seat.

[0010] The pigment container has a first container cover at the bottom, and the first container cover has a first pigment outlet. A second container cover is slidably fitted onto the lower end of the first container cover, and the second container cover has a second pigment outlet. The first container cover is screwed tightly onto the pigment container, and the second container cover is slidably fitted onto the first container cover. By setting the first container cover and slidingly fitting the second container cover, rotating the second container cover makes the first pigment outlet and the second pigment outlet misaligned or connected. The pigment material can be fed and closed without the need for a special valve, which is simple, quick, and prevents pigment leakage.

[0011] The color powder dispensing seat includes a container lid fixing seat at the top and a motor fixing seat at the bottom. An isolation ring is provided between the container lid fixing seat and the motor fixing seat. A rubber pad is provided at the lower end of the isolation ring. The left end of the motor fixing seat is square and snaps into the shoulder of the housing. The right end of the motor fixing seat is round. A container lid groove is provided at the upper right end of the container lid fixing seat. Its inner diameter is the same as the outer diameter of the second container lid. The second container lid is embedded in the container lid groove. An isolation ring receiving groove is provided at the lower end of the container lid fixing seat. The isolation ring is embedded in the isolation ring receiving groove. A dispensing plate groove is provided in the middle of the motor fixing seat. A powder dropping hole is provided on the left side edge of the dispensing plate groove. The motor fixing seat has protruding edges except for the left side.

[0012] The feeding device includes a feeding motor located at the lower right of the motor mounting base. The output shaft of the feeding motor passes through the motor mounting base and is fixedly connected to a feeding shaft. Several feeding rods are evenly connected on the feeding shaft. The length of the feeding rods is slightly smaller than the radius of the container cover groove, and the circle formed by the rotation of the feeding rods intersects with the material distribution tray groove. By setting the feeding rods that intersect with the material distribution tray groove, the rotation of the feeding motor allows the feeding rods to pass over the upper right end of the material distribution tray groove.

[0013] The dispensing device includes a dispensing motor located below the center of the motor mounting base. The output shaft of the dispensing motor passes through the motor mounting base and is fixedly connected to a dispensing disc. The dispensing disc has several transfer holes evenly arranged along its edge. The diameter of the transfer holes is slightly smaller than the radius of the powder drop hole, and the transfer holes communicate with the powder drop hole when they rotate above it. The dispensing disc is embedded in a dispensing disc groove, and the thickness of the dispensing disc is the same as the depth of the dispensing disc groove. Since the diameter and depth of the transfer holes are constant, the amount of pigment powder it can hold is also small and constant. Therefore, the precise measurement of the added weight of pigment powder can be achieved by setting the number of transfer holes that enter the powder drop hole. By setting the dispensing device, the dispensing motor drives the dispensing disc to rotate, and the pigment powder can be cyclically loaded into the transfer holes from the right end with the help of the pushing device, and then rotated to the left end to fall into the powder drop hole. The dispensing motor is a servo motor, which makes the control more precise.

[0014] Furthermore, the right side of the isolation ring and rubber pad has a circular hole with the same diameter as the container cover groove, and the right edge is close to the protruding edge of the motor mounting base. The left side of the isolation ring and rubber pad is tightly fitted to the outer edge of the dispensing tray groove. By setting the isolation ring and rubber pad, the container cover mounting base at the top of the color powder dispensing seat and the motor mounting base at the bottom are sealed and closed. The bottom of the container cover groove is located below the second container cover, forming a color powder temporary storage chamber, which will not leak. At the same time, after the transfer hole is filled with color powder, it turns into the rubber pad. Excess color powder on the transfer hole is immediately blocked by the rubber pad in the color powder temporary storage chamber. After the transfer hole turns into the rubber pad, it is pressed tightly by the rubber pad, and the color powder will not leak, ensuring the accuracy of feeding and the cleanliness of the dispensing tray.

[0015] Furthermore, the container lid fixing seat, the isolation ring, and the right side of the rubber pad are all provided with air blowing holes, which are perpendicular to the powder dropping hole. The shoulder of the shell is provided with a powder inlet hole corresponding to the powder dropping hole. The upper end of the air blowing hole is connected to an air blowing device. In this way, when the transfer hole is rotated to the top of the powder dropping hole and connected with the powder dropping hole, the air blowing is immediately started. The gas blows the color powder in the transfer hole into the powder dropping hole through the air blowing hole, and enters the mixing drum through the powder inlet hole for stirring. The color powder falls quickly and cleanly, without sticking or lingering, completely eliminating blockage.

[0016] Furthermore, the top of the masterbatch metering hopper, the mixing chamber, and the finished product hopper, as well as the bottom of the masterbatch metering hopper and the mixing chamber, form a feeding channel. This feeding channel is a long, straight, and directly connected structure. The first feeding control component includes a first cylinder, a first support plate, and a first control gate. The first support plate is fixedly installed on the upper left outer side of the housing. The first cylinder is fixedly installed on the first support plate, with its output end facing the feeding channel at the top of the masterbatch metering hopper. The left end of the first control gate is fixedly connected to the output end of the first cylinder, and its right end penetrates the masterbatch metering hopper and has a window. The first cylinder controls the pumping motion of the first control gate, thereby opening and closing the window and the feeding channel, thus controlling the amount of masterbatch fed. The second feeding control component includes a second cylinder, a first... The system comprises two support plates, a second control gate, a gate slide, and a gate groove. A gate slide is located on one side of the masterbatch metering hopper near the mixing chamber, and a gate groove is located on the opposite side. A second support plate is located on the upper left side of the mixing chamber. A second cylinder is fixedly mounted on the second support plate. The left end of the second cylinder extends through the housing, with its output end facing the gate slide. The left end of the second control gate is fixedly connected to the output end of the second cylinder, and its right side slides through the gate slide, with its front end inserted into the gate groove. The third feeding control component has the same structure as the second feeding control component. It controls the second control gate's feeding via the second cylinder, thereby opening and closing the feeding channel and controlling the feeding quantity directly, simply, and quickly, avoiding adhesion, retention, and blockage.

[0017] Furthermore, the shoulder of the housing is provided with a spare feeding window, which extends upward through the color powder feeding device, allowing waste materials to be promptly fed into the device for processing.

[0018] Furthermore, the stirring chamber is equipped with a stirring cylinder, and the stirring cylinder has a stirring paddle at its center, which is connected to a stirring motor.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention provides a color powder dispensing seat that integrates a pushing device and a dispensing device. The dispensing device is designed with a dispensing plate having several transfer holes. The transfer holes, in cooperation with the pushing rod, load and transfer the color powder. Since the diameter and depth of the transfer holes are constant, the amount of color powder that can be loaded is also small and constant. Therefore, by setting the number of transfer holes that enter the powder drop hole, the precise metering control of the added color powder weight can be achieved. Compared with the existing gear hole form, its metering accuracy is higher. At the same time, the dispensing motor adopts servo control for greater precision.

[0021] 2. This invention provides a first container cover at the bottom of the color powder container and a second container cover that slides onto it. During installation, rotating the second container cover causes the first color powder outlet to be misaligned with the second color powder outlet, preventing powder leakage. After installation, simply rotating the second container cover allows the first color powder outlet to be connected to the second color powder outlet or to be closed, thus enabling the color powder to be fed or closed without the need for a dedicated valve, making it simple and quick.

[0022] 3. This invention, by setting an isolation ring and a rubber pad in the middle of the color powder dispensing seat, ensures that the container cover fixing seat at the top of the color powder dispensing seat and the motor fixing seat at the bottom are sealed and closed. The space at the bottom of the container cover groove below the second container cover forms a color powder temporary storage chamber, which will not leak color powder. At the same time, after the transfer hole is filled with color powder, it rotates into the area below the rubber pad. Excess color powder on the transfer hole is immediately blocked by the rubber pad in the color powder temporary storage chamber. There will be no leakage after the transfer hole rotates into the rubber pad, ensuring accurate feeding and clean dispensing tray.

[0023] 4. This invention features an air blowing hole that is perpendicular to the powder discharge hole and is located on the right side of the container lid fixing seat, the isolation ring, and the rubber pad. An air blowing device is connected to the upper end of the air blowing hole. When the transfer hole rotates to the top of the powder discharge hole and connects with it, the air blowing is immediately activated. The gas passes through the air blowing hole to flush the color powder in the transfer hole into the powder discharge hole. The color powder falls quickly and cleanly without sticking or lingering, completely eliminating blockage, improving efficiency, and making the color powder metering more accurate.

[0024] 5. The present invention forms a feeding channel directly at the top of the masterbatch quantitative silo, the mixing chamber, and the finished product silo, as well as at the bottom of the masterbatch quantitative silo and the mixing chamber. A first feeding control component, a second feeding control component, and a third feeding control component are set in the feeding channel. The feeding channel is opened and closed by the control gate driven by the cylinder, thereby controlling the feeding quantity. This is direct, simple, and fast, and reduces costs while avoiding adhesion, retention, and blockage.

[0025] 6. This invention features a backup feeding window, allowing waste materials to be promptly fed in for processing, which is very convenient and reduces waste. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the color powder feeding device of the present invention.

[0028] Figure 3 This is a schematic diagram of the colorant container structure of the present invention.

[0029] Figure 4 This is an exploded view of the color powder distribution seat of the present invention.

[0030] Figure 5This is a schematic diagram of the container lid fixing base structure of the present invention.

[0031] Figure 6 This is a schematic diagram of the motor mounting bracket structure of the present invention.

[0032] Figure 7 This is a schematic diagram showing the structural relationship between the motor mounting base, the pushing device, and the distributing device of the present invention.

[0033] Figure 8 This is a schematic diagram of the color powder dispensing seat and rubber gasket sealing structure of the present invention.

[0034] Figure 9 This is a schematic diagram of the feeding channel structure of the present invention.

[0035] Figure 10 This is a schematic diagram of the structure of the first, second, and third feeding control components of the present invention.

[0036] In the diagram: 1. Shell; 101. Powder inlet; 102. Spare feeding window; 2. Masterbatch inlet; 3. Shoulder; 4. Pigment feeding device; 4. Pigment container; 401. First container cover; 4011. First pigment outlet; 4012. Second container cover; 4013. Second pigment outlet; 4014. Pushing device; 402. Pushing motor; 4021. Pushing shaft; 4022. Pushing rod; 4023. Distributing device; 403. Distributing motor; 4031. Distributing disc; 4032. Transfer hole; 4033. Pigment distributing seat; 404. Container cover fixing seat; 4041. Container cover groove; 40411. Isolation ring receiving groove; 404. 12, Motor mounting base 4042, Distributor tray groove 40421, Powder drop hole 40422, Protruding edge 40423, Isolation ring 4043, Rubber pad 4044, Air blowing hole 405, Masterbatch metering bin 5, Mixing chamber 6, Finished product bin 7, First feeding control component 8, First cylinder 81, First support plate 82, First control gate 83, Window 84, Second feeding control component 9, Second cylinder 91, Second support plate 92, Second control gate 93, Gate slide 94, Gate slide groove 95, Third feeding control component 10, Finished product outlet 11, Mixing drum 12, Mixing paddle 13. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1:

[0039] See Figure 1A plastic color matching machine includes a housing 1, characterized in that: a masterbatch inlet 2 is provided at the top of the housing 1, a shoulder 3 is formed on the upper right side of the housing 1 to the masterbatch inlet 2, a color powder feeding device 4 is installed on the shoulder 3, a masterbatch quantitative bin 5, a stirring chamber 6, and a finished product bin 7 are provided inside the housing 1, which are interconnected, a first feeding control component 8 is provided between the masterbatch quantitative bin 5 and the masterbatch inlet 2, a second feeding control component 9 is provided between the stirring chamber 6 and the masterbatch quantitative bin 5, a third feeding control component 10 is provided between the finished product bin 7 and the stirring chamber 6, and a finished product outlet 11 is provided at the bottom of the housing 1.

[0040] See Figure 2 The color powder feeding device 4 includes a color powder container 401, a pushing device 402, a distributing device 403, and a color powder distributing seat 404. The color powder container 401 is installed upside down on the upper right side of the color powder distributing seat 404. The pushing device 402 is installed below the right side of the color powder distributing seat 404. The distributing device 403 is installed below the middle of the color powder distributing seat 404.

[0041] See Figure 3 The pigment container 401 has a first container cover 4011 at its bottom, and the first container cover 4011 has a first pigment outlet 4012. A second container cover 4013 is slidably fitted onto the lower end of the first container cover 4011, and the second container cover 4013 has a second pigment outlet 4014. The first container cover 4011 is screwed tightly onto the pigment container 401, and the second container cover 4013 is slidably fitted onto the first container cover 4011. By setting the first container cover 4011 and slidably fitting the second container cover 4013, pigment can be installed when needed. When using container 401, first rotate the second container cover 4013 to misalign the first color powder outlet 4012 with the second color powder outlet 4014. This prevents powder leakage when the color powder container 401 is installed upside down. After installation, simply rotate the second container cover 4013 to connect the first color powder outlet 4012 with the second color powder outlet 4014 to allow material to be discharged. After discharging, rotate the second container cover 4013 to misalign the first color powder outlet 4012 with the second color powder outlet 4014 to close the container. No special valve is required to achieve the discharging and closing of the color powder, which is simple and quick.

[0042] Example 2:

[0043] See Figure 4 , Figure 5 , Figure 6The color powder dispensing seat 404 includes a container lid fixing seat 4041 at the top and a motor fixing seat 4042 at the bottom. An isolation ring 4043 is provided between the container lid fixing seat 4041 and the motor fixing seat 4042. A rubber pad 4044 is provided at the lower end of the isolation ring 4043. The left end of the motor fixing seat 4042 is square and engages with the shoulder 3 of the housing 1. The right end of the motor fixing seat 4042 is round. A container lid groove 40411 is provided at the upper right side of the container lid fixing seat 4041. The inner diameter is the same as the outer diameter of the second container cover 4013. The second container cover 4013 is embedded in the container cover groove 40411. The lower end of the container cover fixing seat 4041 is provided with an isolation ring receiving groove 40412. The isolation ring 4043 is embedded in the isolation ring receiving groove 40412. The middle part of the motor fixing seat 4042 is provided with a material distribution plate groove 40421. The left side edge of the material distribution plate groove 40421 is provided with a powder dropping hole 40422. Except for the left side, the motor fixing seat 4042 is provided with a protruding edge 40423.

[0044] See Figure 7 The feeding device 402 includes a feeding motor 4021 located at the lower right of the motor mounting base 4042. The output shaft of the feeding motor 4021 passes through the motor mounting base 4042 and is fixedly connected to the feeding shaft 4022. A plurality of feeding rods 4023 are evenly connected on the feeding shaft 4022. The length of the plurality of feeding rods 4023 is slightly smaller than the radius of the container cover groove 40411, and the circle formed by the rotation of the plurality of feeding rods 4023 intersects with the distributing tray groove 40421. By setting the feeding rods that intersect with the distributing tray groove 40421, the rotation of the feeding motor 4021 allows the feeding rods 4023 to pass over the upper right end of the distributing tray groove 40421. The feeding motor 4021 is a reversible speed-adjustable motor with an electromagnetic brake, which brakes quickly.

[0045] See Figure 7The dispensing device 403 includes a dispensing motor 4031 located below the center of a motor mounting base 4042. The output shaft of the dispensing motor 4031 passes through the motor mounting base 4042 and is fixedly connected to a dispensing disk 4032. A plurality of material transfer holes 4033 are evenly arranged along the edge of the dispensing disk 4032. The diameter of the material transfer holes 4033 is slightly smaller than the radius of the powder discharge holes 40422, and when the material transfer holes 4033 rotate above the powder discharge holes 40422, they communicate with the powder discharge holes 40422. The dispensing disk 4032 is embedded in a dispensing disk groove 40421, and the thickness of the dispensing disk 4032 is equal to the depth of the dispensing disk groove 40421. Since the diameter and depth of the several transfer holes 4033 are constant, the amount of pigment powder they can hold is also small and constant. Therefore, the precise measurement of the added weight of pigment powder can be achieved by setting the number of transfer holes 4033 that enter the powder drop hole 40422. Compared with the existing gear hole form, its measurement accuracy is higher. By setting the dispensing device 403, the dispensing motor 4031 drives the dispensing disk 4032 to rotate, which can cyclically load pigment powder into the transfer holes 4033 from the right end with the cooperation of the pushing device 402, and then rotate to the left end to fall into the powder drop hole 40422. The dispensing motor 4031 is a servo motor, which makes the control more precise.

[0046] Specifically, see Figure 8 The right side of the isolation ring 4043 and rubber pad 4044 has a circular hole with the same diameter as the container cover groove 40411, and the right edge is close to the protruding edge 40423 of the motor mounting base 4042. The left side of the isolation ring 4043 and rubber pad 4044 is in close contact with the outer edge of the dispensing tray groove 40421. By setting the isolation ring 4043 and rubber pad 4044, the container cover mounting base 4041 at the top of the color powder dispensing seat 404 and the motor mounting base 404 at the bottom are connected. 2. The container cover groove 40411 is located below the second container cover 4013, forming a temporary storage chamber for color powder, which will not leak. At the same time, after the transfer hole 4033 is filled with color powder, it moves under the rubber pad 4044. Excess color powder on the transfer hole 4033 is immediately blocked by the rubber pad 4044 in the temporary storage chamber. After the transfer hole 4033 moves into the rubber pad 4044, the color powder will not leak because the rubber pad 4044 is pressed tightly against it. This ensures accurate feeding and cleanliness of the distribution tray 4032.

[0047] Example 3:

[0048] See Figure 4 , Figure 9To quickly and cleanly deliver the pigment into the powder discharge hole 40422, avoiding clogging and residue that could affect efficiency and measurement accuracy, air blowing holes 405 are provided through the right side of the container lid fixing seat 4041, the isolation ring 4043, and the rubber pad 4044. The air blowing holes 405 are perpendicularly connected to the powder discharge hole 40422. A powder inlet hole 101 is provided on the shoulder 3 of the shell 1 corresponding to the powder discharge hole 40422. An air blowing device is connected to the upper end of the air blowing hole 405. When the transfer hole 4033 rotates to the top of the powder discharge hole 40422 and connects with it, air blowing is immediately activated. The gas passes through the air blowing hole 405 to flush the pigment in the transfer hole 4033 into the powder discharge hole 40422, and then enters the mixing drum 12 through the powder inlet hole 101 for stirring. Compared with the existing method, the pigment falls quickly and cleanly, without sticking or stagnating, completely eliminating clogging, improving efficiency, and making the pigment measurement more accurate.

[0049] Example 4:

[0050] See Figure 9 , Figure 10To improve the feeding efficiency between the masterbatch metering bin 5, the mixing chamber 6, and the finished product bin 7, this invention eliminates the valve assembly and directly replaces it with a feeding control assembly. A feeding channel is formed at the top and bottom of the masterbatch metering bin 5, the mixing chamber 6, and the finished product bin 7. This feeding channel is a long, straight, and directly connected structure. The first feeding control assembly 8 includes a first cylinder 81, a first support plate 82, and a first control gate 83. The first support plate 82 is fixedly installed on the upper left outer side of the housing 1. The first cylinder 81 is fixedly installed on the first support plate 82, with its output end facing the feeding channel at the top of the masterbatch metering bin 5. The left end of the first control gate 83 is fixedly connected to the output end of the first cylinder 81, and its right end penetrates through the masterbatch metering bin 5, and it has a window 84. The first cylinder 81 controls the pumping of the first control gate 83, realizing the opening and closing of the window 84 and the feeding channel, thereby controlling the amount of masterbatch fed. The second feeding control assembly 9... The system includes a second cylinder 91, a second support plate 92, a second control gate 93, a gate slide 94, and a gate groove 95. The gate slide 94 is located on one side of the masterbatch metering chamber 5 near the mixing chamber 6, and the gate groove 95 is located on the opposite side. A second support plate 92 is located on the upper left side of the mixing chamber 6. A second cylinder 91 is fixedly mounted on the second support plate 92. The left end of the second cylinder 91 extends through the housing 1, with its output end facing the gate slide 94. The left end of the second control gate 93 is fixedly connected to the output end of the second cylinder 91, and its right side slides through the gate slide 94, with its front end inserted into the gate groove 95. The third feeding control component 10 has the same structure as the second feeding control component 9, and will not be described further. The second cylinder 91 controls the second control gate 93 to open and close the feeding channel, thereby controlling the amount of material fed. Compared to traditional methods, this is more direct, simple, and fast, and reduces costs, while avoiding adhesion, retention, and blockage.

[0051] Example 5:

[0052] See Figure 9 A small amount of waste is generated during the plastic coloring process. Under the existing technology, this waste cannot be directly utilized, thus causing waste. To address this, the present invention provides a spare feeding window. The spare feeding window 102 is opened on the shoulder 3 of the housing 1. Correspondingly, the spare feeding window 102 extends upward through the color powder feeding device 4. Waste is promptly fed into the spare feeding window 102 for processing, which is very convenient and reduces waste.

[0053] Example 6:

[0054] See Figure 1 The mixing chamber 6 is equipped with a mixing cylinder 12, and a mixing paddle 13 is provided at the center of the mixing cylinder 12. The mixing paddle 13 is connected to a mixing motor, and the mixing motor drives the mixing paddle 13 to rotate, thereby mixing the color powder and plastic masterbatch evenly.

[0055] The working principle of this invention is as follows:

[0056] First, add masterbatch: Add plastic masterbatch to masterbatch inlet 2. According to the amount added, open the first cylinder 81 to pull the first control gate 83. The window 84 is connected to the feeding channel, so that the required plastic masterbatch enters the masterbatch metering bin 5. Then, start the second cylinder 91 to drive the second control gate 93 to the left, so that the required plastic masterbatch enters the mixing drum 12.

[0057] Second, add color powder: Invert the color powder container 401 and install it in the container cover groove 40411. Rotate it to make the first color powder outlet 4012 and the second color powder outlet 4014 connected, and the color powder enters the color powder temporary storage chamber.

[0058] Third, color powder metering and transfer: Start the pusher motor 4021 to drive the pusher rod 4023 to rotate cyclically above the right end of the distribution plate groove 40421, pushing the color powder in the color powder temporary storage bin into several transfer holes 4033. At the same time, start the distribution motor 4031 to drive the distribution plate 4032 to rotate cyclically. When the transfer hole 4033 filled with color powder is rotated to the top of the powder drop hole 40422 and connected with the powder drop hole 40422, immediately start the air blowing. The air blows the color powder in the transfer hole 4033 into the powder drop hole 40422 through the air blowing hole 405, and enters the mixing drum 12 through the powder inlet hole 101.

[0059] Fourth, stirring and mixing: After all the required amount of color powder has entered the stirring drum 12, start the stirring motor to drive the stirring paddle 13 to rotate, thereby stirring the color powder and plastic masterbatch evenly.

[0060] Fifth, material collection: Start the third feeding control component 10 to connect the mixing chamber 6 and the finished product bin 7. The evenly mixed finished material enters the finished product bin 7 for collection, and then enters the extruder for processing through the finished product outlet 11.

[0061] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0062] 1. This invention provides a color powder distribution seat 404 integrating a pushing device 402 and a distributing device 403. The distributing device 403 is designed with a distributing plate 4032 having several transfer holes 4033. The transfer holes 4033 load and transfer color powder with the cooperation of the pushing rod 4023. Since the diameter and depth of the several transfer holes 4033 are constant, the amount of color powder that can be loaded is also small and constant. Therefore, by setting the number of transfer holes 4033 entering the powder drop hole 40422, the precise metering control of the added weight of color powder can be achieved. Compared with the existing gear hole form, its metering accuracy is higher. At the same time, the distributing motor 4031 adopts servo control for greater precision.

[0063] 2. This invention provides a first container cover 4011 at the bottom of the color powder container 401 and a second container cover 4013 that is slidably fitted on it. During installation, rotating the second container cover 4013 causes the first color powder outlet 4012 and the second color powder outlet 4014 to be misaligned, preventing powder leakage. After installation, simply rotating the second container cover 4013 allows the first color powder outlet 4012 and the second color powder outlet 4014 to be connected or closed to achieve the feeding and closing of the color powder. No special valve is required, making it simple and quick.

[0064] 3. By setting an isolation ring 4043 and a rubber pad 4044 in the middle of the color powder dispensing seat 404, the container cover fixing seat 4041 at the top of the color powder dispensing seat 404 and the motor fixing seat 4042 at the bottom of the color powder dispensing seat 404 are sealed and closed. The space at the bottom of the container cover groove 40411 below the second container cover 4013 forms a color powder temporary storage chamber, which will not leak color powder. At the same time, after the transfer hole 4033 is filled with color powder, it rotates into the rubber pad 4044. Excess color powder on the transfer hole 4033 is immediately blocked by the rubber pad 4044 in the color powder temporary storage chamber. The transfer hole 4033 will not leak after rotating into the rubber pad 4044, ensuring the accuracy of feeding and the cleanliness of the dispensing plate 4032.

[0065] 4. The present invention provides an air blowing hole 405 that is perpendicular to and penetrates the powder dropping hole 40422 on the right side of the container lid fixing seat 4041, the isolation ring 4043, and the rubber pad 4044. The upper end of the air blowing hole 405 is connected to an air blowing device. When the transfer hole 4033 rotates to the top of the powder dropping hole 40422 and penetrates the powder dropping hole 40422, the air blowing is immediately started. The gas passes through the air blowing hole 405 to flush the color powder in the transfer hole 4033 into the powder dropping hole 40422. The color powder falls quickly and cleanly, without sticking or lingering, completely eliminating blockage, improving efficiency, and making the color powder metering more accurate.

[0066] 5. The top of the masterbatch quantitative bin 5, the stirring chamber 6, and the finished product bin 7, as well as the bottom of the masterbatch quantitative bin 5 and the stirring chamber 6, directly form a feeding channel. A first feeding control component 8, a second feeding control component 9, and a third feeding control component 10 are set in the feeding channel. The feeding channel is opened and closed by the control gate driven by the cylinder, thereby controlling the amount of material fed. This is direct, simple, and fast, and reduces costs while avoiding adhesion, retention, and blockage.

[0067] 6. This invention features a backup feeding window, allowing waste materials to be promptly fed in for processing, which is very convenient and reduces waste.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plastic color matching machine, comprising a housing (1), characterized in that: The shell (1) has a masterbatch inlet (2) at the top. The shell (1) forms a shoulder (3) on the upper right side of the masterbatch inlet (2). A color powder feeding device (4) is installed on the shoulder (3). The shell (1) has interconnected masterbatch quantitative bins (5), stirring chamber (6), and finished product bins (7). A first feeding control component (8) is provided between the masterbatch quantitative bins (5) and the masterbatch inlet (2). A second feeding control component (9) is provided between the stirring chamber (6) and the masterbatch quantitative bins (5). A third feeding control component (10) is provided between the finished product bins (7) and the stirring chamber (6). The shell (1) has a finished product outlet (11) at the bottom. The color powder feeding device (4) includes a color powder container (401), a pushing device (402), a distributing device (403), and a color powder distributing seat (404). The color powder container (401) is installed upside down on the upper right side of the color powder distributing seat (404). The pushing device (402) is installed below the right side of the color powder distributing seat (404). The distributing device (403) is installed below the middle part of the color powder distributing seat (404). The pigment container (401) is provided with a first container cover (4011) at the bottom, the first container cover (4011) is provided with a first pigment outlet (4012), a second container cover (4013) is slidably sleeved on the lower end of the first container cover (4011), the second container cover (4013) is provided with a second pigment outlet (4014), the first container cover (4011) is screwed tightly on the pigment container (401), and the second container cover (4013) is slidably sleeved on the first container cover (4011); The color powder dispensing seat (404) includes a container lid fixing seat (4041) at the top and a motor fixing seat (4042) at the bottom. An isolation ring (4043) is provided between the container lid fixing seat (4041) and the motor fixing seat (4042). A rubber pad (4044) is provided at the lower end of the isolation ring (4043). The left end of the motor fixing seat (4042) is square and is snapped and fixed to the shoulder (3) of the housing (1). The right end of the motor fixing seat (4042) is round. A container lid groove (40411) is provided at the upper right side of the container lid fixing seat (4041). Its inner diameter is consistent with the outer diameter of the second container cover (4013). The second container cover (4013) is embedded in the container cover groove (40411). The lower end of the container cover fixing seat (4041) is provided with an isolation ring receiving groove (40412). The isolation ring (4043) is embedded in the isolation ring receiving groove (40412). The middle part of the motor fixing seat (4042) is provided with a material distribution plate groove (40421). The left side edge of the material distribution plate groove (40421) is provided with a powder dropping hole (40422). The motor fixing seat (4042) is provided with a protruding edge (40423) except for the left side. The feeding device (402) includes a feeding motor (4021) located at the lower right of the motor mounting base (4042). The output shaft of the feeding motor (4021) passes through the motor mounting base (4042) and is fixedly connected to the feeding shaft (4022). A plurality of feeding rods (4023) are evenly connected on the feeding shaft (4022). The length of the plurality of feeding rods (4023) is slightly smaller than the radius of the container cover groove (40411), and the circle formed by the rotation of the plurality of feeding rods (4023) intersects with the material distribution tray groove (40421). The material distribution device (403) includes a material distribution motor (4031) located below the center of the motor mounting base (4042). The output shaft of the material distribution motor (4031) passes through the motor mounting base (4042) and is fixedly connected to the material distribution disk (4032). The material distribution disk (4032) is evenly provided with a plurality of material transfer holes (4033) along its edge. The diameter of the plurality of material transfer holes (4033) is slightly smaller than the radius of the powder drop hole (40422). When the plurality of material transfer holes (4033) rotate to above the powder drop hole (40422), they communicate with the powder drop hole (40422). The material distribution disk (4032) is embedded in the material distribution disk groove (40421). The thickness of the material distribution disk (4032) is consistent with the depth of the material distribution disk groove (40421). The right side of the isolation ring (4043) and rubber pad (4044) is provided with a circular hole with the same diameter as the container cover groove (40411), and the right edge is close to the protruding edge (40423) of the motor mounting base (4042). The left side of the isolation ring (4043) and rubber pad (4044) is closely fitted with the outer edge of the material distribution tray groove (40421). Air blowing holes (405) are provided through the right side of the container lid fixing seat (4041), the isolation ring (4043), and the rubber pad (4044). The air blowing holes (405) are perpendicularly connected to the powder dropping holes (40422). A powder inlet hole (101) is opened on the shoulder (3) of the shell (1) corresponding to the powder dropping holes (40422). An air blowing device is connected to the upper end of the air blowing holes (405).

2. The plastic color matching machine according to claim 1, characterized in that: The top of the masterbatch metering bin (5), the stirring chamber (6), and the finished product bin (7), as well as the bottom of the masterbatch metering bin (5) and the stirring chamber (6), form a feeding channel. The feeding channel is a long strip that is directly connected. The first feeding control component (8) includes a first cylinder (81), a first support plate (82), and a first control gate (83). The first support plate (82) is fixedly installed on the outer side of the upper left part of the housing (1). The first cylinder (81) is fixedly installed on the first support plate (82), with its output end facing the feeding channel at the top of the masterbatch metering bin (5). The left end of the first control gate (83) is fixedly connected to the output end of the first cylinder (81), and its right end penetrates through the masterbatch metering bin (5) and is provided with a window (84). The second feeding control component (9) includes a second cylinder (91), a first cylinder (82), a first control gate (83), a first control gate (84 ... The second support plate (92), the second control gate (93), the gate slide (94), and the gate groove (95) are provided. The gate slide (94) is opened on one side of the masterbatch quantitative bin (5) near the stirring chamber (6), and the gate groove (95) is opened on the opposite side. The upper left side of the stirring chamber (6) is provided with a second support plate (92). A second cylinder (91) is fixedly installed on the second support plate (92). The left end of the second cylinder (91) extends through the housing (1) and the output end faces the gate slide (94). The left end of the second control gate (93) is fixedly connected to the output end of the second cylinder (91), and the right part slides through the gate slide (94). The front end is inserted into the gate groove (95). The third feeding control component (10) has the same structure as the second feeding control component (9).

3. A plastic color matching machine according to claim 1, characterized in that: The shell (1) has a spare feeding window (102) on its shoulder (3), and the spare feeding window (102) extends upward through the color powder feeding device (4).

4. A plastic color matching machine according to claim 1, characterized in that: The stirring chamber (6) is provided with a stirring cylinder (12), and the stirring cylinder (12) is provided with a stirring paddle (13) at its center. The stirring paddle (13) is connected to a stirring motor.

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