Stirring machine for processing injection molding raw materials

Abstract

The utility model discloses a mixer for processing injection molding raw materials, which comprises a base, a vertical frame is arranged above the base, a large gear is rotatably arranged at the bottom of a top plate, a driving rod of a servo motor is fixedly connected with the center of the large gear and penetrates through and extends to the bottom of the large gear, an outer barrel is arranged above the base, and the outer barrel is fixedly connected with the top plate. An inner barrel is arranged in the outer barrel, and a stirring barrel is arranged in the inner barrel. The stirring blade and the telescopic rod are connected to the side wall of the large gear in a meshed mode through the small gear, when the large gear is driven by the servo motor, the small gear does planetary motion around the axis of the large gear, and therefore the small gear can drive the stirring blade to conduct all-directional stirring in the stirring barrel, and the motion trail of the stirring blade covers the whole stirring barrel. According to the stirring device, the stirring blind area can be avoided, so that the material cannot be accumulated or detained in the stirring process, the uniform distribution of the material in the stirring barrel is ensured by the dead-angle-free stirring mode, and the stirring quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding raw material mixing technology, specifically to a mixer for processing injection molding raw materials. Background Technology

[0002] In injection molding production, the uniformity of raw materials directly affects the quality of the final product. The mixer plays a key role in processing injection molding raw materials. Through high-speed rotation, the mixer can fully mix different types of raw materials such as plastic granules, masterbatches, and additives, ensuring that the composition of each raw material is consistent. This not only avoids problems such as uneven product color and unstable physical properties, but also effectively improves the overall quality of the product.

[0003] Existing mixers often only effectively mix the center of the mixing tank when stirring inside, while blind spots may appear around the bottom and sides of the mixing tank, resulting in uneven mixing of materials.

[0004] For example, the patented high-efficiency mixing device for injection molding raw materials for 3D printing disclosed in CN213260431U has a mixing paddle that only stirs at the center. However, the continuous stirring of the mixing paddle at a fixed position will cause the raw materials at the edge of the mixing drum or far from the center to not be fully mixed, thus affecting the uniformity of the raw materials. Due to uneven mixing, a longer mixing time may be required to achieve the desired mixing effect, thereby reducing production efficiency.

[0005] Therefore, it is necessary to invent a mixer for processing injection molding raw materials to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a mixer for processing injection molding raw materials, in order to solve the problem in the technology where the mixing paddle continuously agitates in a fixed position, resulting in insufficient mixing of raw materials at the edge of the mixing drum or far from the center, which not only affects the uniformity of the raw materials but also reduces production efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mixer for processing injection molding raw materials, comprising a base, mixing blades, and a mixing tank. A support frame is provided above the base, and a top plate is fixedly installed above the support frame. A servo motor is provided at the center of the top of the top plate, and a large gear is rotatably provided at the bottom of the top plate. The drive rod of the servo motor is fixedly connected to the center of the large gear and extends through to its bottom. A small gear is meshed with the side of the large gear, and a telescopic rod is fixedly connected to the center of the small gear. An outer tank is provided above the base, and an inner tank is provided inside the outer tank. The mixing tank is provided inside the inner tank.

[0008] Preferably, the telescopic rod is connected to the drive rod of the servo motor via a sleeve and a connecting rod. The sleeve is fixedly fitted onto the telescopic rod, and the connecting rod is fixedly connected between the sleeve and the drive rod of the servo motor. This allows for fine-tuning of the position or angle of the telescopic rod to drive the stirring blades to achieve stirring requirements at different positions.

[0009] Preferably, the bottom end of the telescopic rod is provided with stirring blades, which are located inside the mixing tank to ensure that the raw materials can be mixed evenly and achieve the best mixing effect.

[0010] Preferably, a ball is fixedly installed at the telescopic end of the telescopic rod, and a support plate is provided on the outside of the ball. The ball is rotatably installed inside the support plate, allowing the telescopic rod and the stirring blade to stir in multiple directions.

[0011] Preferably, a sliding plate is fixedly connected to the side wall of the support plate, the sliding plate is slidably mounted on the upright, and a cylinder is provided on the side wall of the upright. The output end of the cylinder is connected to the bottom surface of the sliding plate, and the height and position of the stirring blade are precisely controlled by the extension and retraction of the cylinder.

[0012] Preferably, the outer wall of the mixing tank is provided with a slider, and a groove is provided at the contact position between the inner wall of the inner tank and the slider. The slider and the groove are slidably connected, so that the mixing tank can be easily removed and cleaned.

[0013] Preferably, the inner wall of the outer barrel is provided with a heat insulation layer, which is made of heat insulation cotton. The heat insulation layer is fixed to the outer barrel by adhesive, which reduces heat loss during the stirring process and improves the temperature stability and uniformity of the raw materials in the stirring barrel.

[0014] Preferably, a heat-conducting layer is tightly attached to the outer wall of the inner barrel, and an electric heating tube is tightly attached to the outer wall of the heat-conducting layer, allowing the raw materials in the mixing barrel to be heated by the electric heating tube, and the heat to be evenly transferred to the raw materials through the heat-conducting layer.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. In this utility model, the stirring blades and telescopic rods are connected to the side wall of the large gear through a small gear meshing. When the large gear is driven by a servo motor, the small gear moves in a planetary motion around the axis of the large gear. As a result, the small gear drives the stirring blades to stir in all directions in the mixing drum. Thus, the movement trajectory of the stirring blades covers the entire mixing drum, which can avoid blind spots in the stirring. Therefore, the material will not accumulate or stagnate during the stirring process. This stirring method without dead angles helps to ensure the uniform distribution of the material in the mixing drum and improves the stirring quality.

[0017] 2. In this utility model, the mixing tank is located inside the inner tank, which is located inside the outer tank. An appropriate space is left between the outer tank and the inner tank, which is filled with a heat insulation layer to reduce heat loss. A heating wire is installed on the inner wall of the heat insulation layer, which is in close contact with the inner wall of the heat-conducting layer. At the same time, the heat-conducting layer is also in close contact with the outer wall of the inner tank. Thus, the heating wire is powered by a power source, generates heat, and is evenly transferred to the raw materials in the mixing tank through the heat-conducting layer, ensuring that the raw materials are heated evenly and improving heating efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom-view three-dimensional structural diagram of the large gear and small gear of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the cylinder of this utility model;

[0021] Figure 4 This is a three-dimensional cross-sectional structural diagram of the mixing tank of this utility model.

[0022] Figure 5 This is a three-dimensional cross-sectional view of the outer barrel of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base; 2. Frame; 3. Top plate; 4. Servo motor; 5. Large gear; 6. Small gear; 7. Telescopic rod; 8. Sleeve; 9. Connecting rod; 10. Stirring blade; 11. Sphere; 12. Support plate; 13. Slide plate; 14. Cylinder; 15. Stirring tank; 16. Outer tank; 17. Inner tank; 18. Sliding block; 19. Slide groove; 20. Insulation layer; 21. Heat-conducting layer; 22. Electric heating element. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5The mixer shown includes a base 1, mixing blades 10, and a mixing tank 15. A support frame 2 is provided above the base 1, and a top plate 3 is fixedly installed above the support frame 2. A servo motor 4 is provided at the center of the top of the top plate 3, and a large gear 5 is rotatably provided at the bottom of the top plate 3. The drive rod of the servo motor 4 is fixedly connected to the center of the large gear 5 and extends through to its bottom. A small gear 6 is meshed with the side of the large gear 5, and a telescopic rod 7 is fixedly connected to the center of the small gear 6. An outer tank 16 is provided above the base 1, and an inner tank 17 is provided inside the outer tank 16. The mixing tank 15 is provided inside the inner tank 17.

[0027] The telescopic rod 7 is connected to the drive rod of the servo motor 4 via a sleeve 8 and a connecting rod 9. The sleeve 8 is fixedly fitted onto the telescopic rod 7, and the connecting rod 9 is fixedly connected between the sleeve 8 and the drive rod of the servo motor 4. The bottom end of the telescopic rod 7 is provided with a stirring blade 10, which is located inside the stirring tank 15. A ball 11 is fixedly installed at the telescopic end of the telescopic rod 7. A support plate 12 is provided on the outside of the ball 11, and the ball 11 is rotatably installed inside the support plate 12. A sliding plate 13 is fixedly connected to the side wall of the support plate 12, and the sliding plate 13 is slidably installed on the upright frame 2. A cylinder 14 is provided on the side wall of the upright frame 2, and the output end of the cylinder 14 is connected to the bottom surface of the sliding plate 13.

[0028] The servo motor 4 transmits power to the large gear 5 via a drive rod. The large gear 5 then meshes with the small gear 6 to achieve power reduction. A connecting rod 9 securely connects the sleeve 8 to the drive rod of the servo motor 4, allowing the telescopic rod 7 to rotate precisely under the drive of the servo motor 4. This enables the stirring blades 10 to agitate omnidirectionally within the mixing tank 15. During agitation, the ball 11 rotates inside the support plate 12. This design allows the stirring blades 10 to adaptively adjust their angle during agitation, achieving more comprehensive and uniform mixing of the injection molding material. Simultaneously, the cylinder 14 can adjust the height of the slide plate 13 as needed, thereby changing the position of the stirring blades 10 within the mixing tank 15.

[0029] The outer wall of the mixing tank 15 is provided with a slider 18, and the inner wall of the inner tank 17 is provided with a groove 19 at the contact position with the slider 18. The slider 18 and the groove 19 are slidably connected. The inner wall of the outer tank 16 is provided with a heat insulation layer 20, which is made of heat insulation cotton. The heat insulation layer 20 is fixed to the outer tank 16 by adhesive. The outer wall of the inner tank 17 is closely provided with a heat-conducting layer 21, and an electric heating tube 22 is closely provided on the outer wall of the heat-conducting layer 21.

[0030] The mixing tank 15 and the inner tank 17 are installed by a sliding connection, which makes it easy to remove and clean the mixing tank 15. The electric heating tube 22 has a heating function, which can transfer heat to the heat-conducting layer 21 and the inner tank 17, thereby heating the raw materials in the mixing tank 15. The insulation layer 20 is used to reduce heat loss, thereby effectively improving the heating and mixing effect of the injection molding raw materials.

[0031] Working principle of this utility model:

[0032] Refer to the instruction manual appendix Figure 1-5 When using this utility model, firstly, the injection molding raw material to be processed is poured into the mixing tank 15. At this time, the telescopic rod 7 is in a retracted state, and the stirring blade 10 is located above or outside the top of the mixing tank 15. Then, the electric heating tube 22 is activated, and heat is transferred to the inner tank 17 through the heat-conducting layer 21, thereby heating the raw material in the mixing tank 15. The setting of the heat insulation layer 20 helps to reduce heat loss and improve heating efficiency. When the raw material reaches the predetermined heating temperature, the telescopic rod 7 and the stirring blade 10 are lowered and extended into the mixing tank 15 through the cylinder 14. Then, the servo motor 4 is activated, and the drive rod of the servo motor 4 starts to rotate. Through the meshing of the large gear 5 and the small gear 6, the power is transmitted to the telescopic rod 7. When the telescopic rod 7 and the stirring blade 10 rotate, the ball 11 rotates inside the support plate 12, thereby driving the stirring blade 10 to stir the raw material in all directions in the mixing tank 15, thereby achieving uniform mixing of the raw material.

[0033] Once the mixing reaches the desired effect, the servo motor 4 stops working, the telescopic rod 7 begins to retract to its initial position, and the mixing blade 10 is removed from the mixing tank 15. At this time, the mixing tank 15 can be slid out of the inner tank 17 through the slider 18 and the chute 19, which not only discharges the uniformly mixed injection molding material, but also facilitates the cleaning of the mixing tank 15 for the next use.

Claims

1. A mixer for processing of injection molding material, comprising a base (1), a mixing blade (10) and a mixing bowl (15), characterized in that: The upper portion of the base (1) is provided with a stand (2), the top of the stand (2) is fixedly installed with a top plate (3), the top center of the top plate (3) is provided with a servo motor (4), the bottom of the top plate (3) is rotatably provided with a large gear (5), the driving rod of the servo motor (4) is fixedly connected to the center of the large gear (5) and extends through to the bottom thereof, the side edge of the large gear (5) is engagedly connected with a small gear (6), the center of the small gear (6) is fixedly connected with an extension rod (7), the upper portion of the base (1) is provided with an outer barrel (16), the inside of the outer barrel (16) is provided with an inner barrel (17), and the inside of the inner barrel (17) is provided with a stirring barrel (15).

2. A mixer for processing injection molding material according to claim 1, wherein: The extension rod (7) and the driving rod of the servo motor (4) are connected through a sleeve (8) and a connecting rod (9), the sleeve (8) is fixedly sleeved on the extension rod (7), and the connecting rod (9) is fixedly connected between the sleeve (8) and the driving rod of the servo motor (4).

3. A mixer for processing injection molding material according to claim 2, wherein: The bottom end of the extension rod (7) is provided with a stirring blade (10), and the stirring blade (10) is located inside the stirring barrel (15).

4. A mixer for processing injection molding material according to claim 3, wherein: The extension end of the extension rod (7) is fixedly installed with a ball (11), the outer side of the ball (11) is provided with a supporting plate (12), and the ball (11) is rotatably installed inside the supporting plate (12).

5. A mixer for processing injection molding material as defined in claim 4, wherein: The side wall of the supporting plate (12) is fixedly connected with a sliding plate (13), the sliding plate (13) is slidingly installed on the stand (2), the side wall of the stand (2) is provided with an air cylinder (14), and the output end of the air cylinder (14) is connected with the bottom surface of the sliding plate (13).

6. A mixer for processing injection molding material as defined in claim 1, wherein: The outer wall of the stirring barrel (15) is provided with a sliding block (18), the inner wall of the inner barrel (17) is provided with a sliding groove (19) at the contact position of the sliding block (18), and the sliding block (18) and the sliding groove (19) are slidingly connected.

7. A mixer for processing injection molding material as defined in claim 1, wherein: The inner wall of the outer barrel (16) is provided with a heat preservation layer (20), the heat preservation layer (20) is made of heat preservation cotton, and the heat preservation layer (20) and the outer barrel (16) are fixedly attached by adhesive.

8. A mixer for processing injection molding material as defined in claim 6, wherein: The outer wall of the inner barrel (17) is tightly provided with a heat conduction layer (21), and the outer wall of the heat conduction layer (21) is tightly provided with an electric heating pipe (22).

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