Injection molding material mixing device

Abstract

The utility model provides an injection molding material mixing device which comprises a material mixing bin, a supporting frame is fixed below the material mixing bin, a discharging valve is connected to the material mixing bin, a vertical first long groove is formed in the inner side wall of the material mixing bin and communicated with a discharging port, a second long groove is further formed in the bottom wall of the material mixing bin, and the second long groove is communicated with the discharging port. The second long groove is also communicated with the discharge hole; the driving motor is fixed below the mixing bin, and a first stirring blade and a second stirring blade are fixed on a motor shaft of the driving motor; the powder collecting assembly comprises a first collecting component and a second collecting component, the first collecting component is detachably connected to the side face of the first stirring blade, and the second collecting component is detachably connected to the bottom face of the second stirring blade. The device is simple in structure, the mixing bin can be quickly cleaned after injection molding materials are mixed, and it is ensured that powder cannot be attached to the bottom wall and the inner wall of the mixing bin.

Description

Technical Field

[0001] This utility model relates to the field of injection molding, and in particular to an injection molding mixing device. Background Technology

[0002] In the field of plastics processing, the main function of injection molding mixing equipment is to uniformly mix various plastic raw materials, including granules and powders, in a specific ratio to meet the requirements of subsequent injection molding processes. Good mixing results ensure that the quality and performance of plastic products meet the expected standards.

[0003] Existing plastic injection mixing equipment typically consists of a mixing hopper, a stirring mechanism, and other components. Mixing is achieved through stirring to combine plastic granules or auxiliary powders. Due to the characteristics of powder materials, such as fine particles, poor flowability, and easy adhesion, some powder adheres to the inner wall or bottom surface of the mixing chamber during the mixing process. In current technology, the operator usually removes the powder by wiping, which is inefficient. Furthermore, for safety reasons, the drive motor is generally equipped with a braking device, and after the machine stops, the stirring blades cannot rotate under external force. The obstruction caused by the stirring shaft and stirring blades makes wiping inconvenient. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a plastic injection mixing device. This device has a simple structure and can quickly clean the mixing chamber after the plastic injection mixture is mixed, ensuring that the powder does not adhere to the bottom and inner walls of the mixing chamber.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plastic injection mixing device, comprising:

[0006] A mixing silo, with a support frame fixed below the mixing silo and a discharge valve connected to the mixing silo. A vertical first long groove is provided on the inner side wall of the mixing silo, and the first long groove is connected to the discharge port. A second long groove is also provided on the bottom wall of the mixing silo, and the second long groove is also connected to the discharge port.

[0007] A drive motor is fixed below the mixing chamber, and a first stirring blade and a second stirring blade are fixed on the motor shaft of the drive motor.

[0008] The powder collection assembly includes a first collection component and a second collection component, wherein the first collection component is detachably connected to the side surface of a first stirring blade, and the second collection component is detachably connected to the bottom surface of a second stirring blade.

[0009] Furthermore, both the first and second long slots are arc-shaped slots.

[0010] Furthermore, the second stirring blade is located in the lower layer and is inclined, while the first stirring blade is located in the upper layer and is vertically positioned.

[0011] Furthermore, both the first and second collecting components are connected to silicone scrapers, and one of the blades of the second stirring blade is provided with a snap-fit ​​groove. The first collecting component is divided into a snap-fit ​​part and a collecting part by a clearance groove.

[0012] Furthermore, one of the blades of the second stirring blade has a vertical flange extending from its bottom, and at least two studs are provided on the vertical flange. The second collecting component has corresponding screw holes and is fixed to the bottom of the blade by hand-tightening nuts.

[0013] Furthermore, both the first and second collecting components are provided with mounting grooves, and the silicone scraper is installed in the mounting grooves and fastened with screws and nuts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The device has a simple structure and can achieve uniform mixing. It can quickly clean the mixing chamber after mixing the injection molding plastic to ensure that the powder does not adhere to the bottom and inner walls of the mixing chamber.

[0016] 2. Through the action of the first and second collecting components, after mixing, the stirring blades on the mixing bin can drive the collecting components to scrape the mixing bin, so that the powder can be collected quickly.

[0017] 3. By setting long troughs on the inner side wall and bottom wall of the mixing silo, the powder can fall into the long troughs during powder collection, and then be discharged from the outlet. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a connection structure diagram of the first collecting component and the stirring blade of this utility model;

[0021] Figure 4 This is a structural diagram showing the connection between the second collecting component and the stirring blade of this utility model.

[0022] In the diagram: 1. Mixing bin; 2. Support frame; 3. Discharge valve; 4. First long trough; 5. Second long trough; 6. Discharge port; 7. Drive motor; 8. Second stirring blade; 9. First stirring blade; 10. Snap-fit ​​groove; 11. Snap-fit ​​part; 12. Collection part; 13. Silicone scraper; 14. Stud; 15. Mounting groove; 16. Vertical flange; 17. Hand-tightening nut; 18. Second collection component; 19. First collection component; Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 4 The shown plastic injection mixing device includes:

[0025] A mixing bin 1, a support frame 2 is fixed below the mixing bin 1, a discharge valve 3 is connected to the mixing bin 1, a vertical first long groove 4 is provided on the inner side wall of the mixing bin 1, the first long groove 4 is connected to the discharge port 6, and a second long groove 5 is also provided on the bottom wall of the mixing bin 1, the second long groove 5 is also connected to the discharge port 6.

[0026] A drive motor 7 is fixed below the mixing chamber 1, and a first stirring blade 8 and a second stirring blade 9 are fixed on the motor shaft of the drive motor 7.

[0027] The powder collection assembly includes a first collection component 19 and a second collection component 18. The first collection component 19 is detachably connected to the side of the first stirring blade 9, and the second collection component is detachably connected to the bottom surface of the second stirring blade 8.

[0028] The process of using this utility model is as follows: First, the plastic granules to be mixed and the auxiliary powder are put into the mixing hopper 1. The drive motor 7 is started, and the drive motor 7 begins to rotate, mixing the plastic granules. During the mixing process, due to the presence of the first stirring blade 8 and the second stirring blade 9, the plastic granules can be fully mixed. After the plastic granules are fully mixed, the discharge valve 3 is opened, and the mixed plastic granules are discharged from the discharge valve 3. After the plastic granules are discharged, the bottom or inner wall of the mixing hopper may have fine auxiliary powder adhering to it. Because the first stirring blade 8 and the second stirring blade 9 are connected to the first receiving... The first and second collecting components, through their combined action, push and collect the powder into the first long trough 4 or the second long trough 5. The powder in the first long trough 4 will be discharged from the outlet 6 due to gravity, while the powder in the second long trough 5 will fall out from the outlet 6 under vibration. After the machine stops, if the powder adheres to the first long trough 4 or the second long trough 5, it can be quickly scraped off by attaching a brush to a long rod. The depth of the first and second long troughs is set to 5-6mm. Compared with manual wiping, this invention greatly improves cleaning efficiency.

[0029] Furthermore, both the first long groove 4 and the second long groove 5 are arc-shaped grooves. Specifically, both the first long groove 4 and the second long groove 5 are arc-shaped grooves with curved sides. Compared to a design where the sides are vertical and the bottom is horizontal, powder is less likely to adhere to the angle between the vertical and horizontal sides, making cleaning easier.

[0030] Furthermore, the second stirring blade 8 is located in the lower layer and is inclined, while the first stirring blade 9 is located in the upper layer and is vertically positioned. Specifically, the inclined second stirring blade 8 in the lower layer can flip the injection molding compound at the bottom upwards, breaking the accumulation of materials and allowing the injection molding compound to circulate within the mixing chamber 1. Meanwhile, the vertical first stirring blade 9 in the upper layer can further stir and disperse the rising materials, ensuring that materials of different components are fully mixed, improving mixing efficiency and uniformity, and meeting the high requirements for mixing quality of injection molding compounds.

[0031] Furthermore, both the first collecting component 19 and the second collecting component 18 are connected to silicone scrapers 13. One of the blades of the second stirring blade 8 has a snap-fit ​​groove 10. The first collecting component 19 is divided into a snap-fit ​​part 11 and a collecting part 12 by a clearance groove. Specifically, the first collecting component 19 can be directly inserted into the blade through the snap-fit ​​part 11, which is quick and convenient. Since the silicone scraper of the first collecting component is in contact with the inner wall of the mixing chamber, the position of the first collecting component 19 can remain stable due to the centrifugal force when the stirring blade rotates.

[0032] Furthermore, one of the blades of the second stirring blade 8 has a vertical flange 16 extending from its bottom. At least two studs 14 are provided on the vertical flange, and the second collecting component 18 has corresponding screw holes and is fixed to the bottom of the blade by a hand-tightening nut 17. To facilitate the connection of the second collecting component 18, two studs 14 are provided at the bottom of the blade of the first stirring blade 8, allowing for quick assembly and disassembly of the second collecting component 18 by hand-tightening the nut 17. Simultaneously, because one of the blades of the second stirring blade 8 has a vertical flange 16, the second collecting component 18 can fit snugly against this vertical flange 16, maintaining a vertical position after being connected to the blade.

[0033] Furthermore, both the first and second collecting components are provided with mounting grooves 15, and the silicone scraper 13 is installed in the mounting groove 15 and secured with screws and nuts. Specifically, the silicone scraper 13 is a consumable part, and by fixing it in the mounting groove 15 and securing it with screws and nuts, quick replacement can be achieved.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An injection molding compounder apparatus, characterized by, The utility model relates to a powder mixing device, including: A mixing bin is fixed below the supporting frame, the mixing bin is connected with the discharge valve, the vertical first long groove is arranged on the inner side wall of the mixing bin, the first long groove and the discharge port are communicated, the second long groove is further arranged on the bottom wall of the mixing bin, and the second long groove also communicates with the discharge port; A drive motor is fixed below the mixing bin, the first stirring blade and the second stirring blade are fixed on the motor shaft of the drive motor; The powder collecting assembly includes a first collecting member and a second collecting member, the first collecting member is detachably connected to the side of the first stirring blade, and the second collecting member is detachably connected to the bottom of the second stirring blade.

2. The injection molding material mixing device of claim 1, wherein: The first long groove and the second long groove are both arc-shaped grooves.

3. A plastic compounder as claimed in claim 2, wherein: The second stirring blade is in the lower layer and is obliquely arranged, and the first stirring blade is in the upper layer and is vertically arranged.

4. The injection molding material mixing device of claim 3, wherein: Silicone scrapers are connected to the first collecting member and the second collecting member, a clamping groove is formed in one blade of the second stirring blade, the first collecting member is divided into a clamping part and a collecting part through a gap groove.

5. A plastics material mixing apparatus as claimed in claim 4, wherein: The bottom of one blade of the second stirring blade is extended with a vertical flange, at least two studs are arranged on the vertical flange, corresponding screw holes are formed in the second collecting member, and the second collecting member is fixed to the bottom of the blade through hand-tightening nuts.

6. A plastics material mixing apparatus as claimed in claim 5, wherein: Mounting grooves are formed in the first collecting member and the second collecting member, the silicone scrapers are mounted in the mounting grooves, and the silicone scrapers are fastened through screws and nuts.

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