A raw material mixing hopper for a plastic injection molding machine

Abstract

The utility model relates to injection molding machine technical field, concretely relates to a raw material mixing hopper for plastic injection molding machine, it includes processing cylinder, is provided with mixing stirring subassembly in processing cylinder, is provided with anti -blocking unloading component at processing cylinder top, is provided with controllable discharge capacity subassembly at processing cylinder bottom, the utility model discloses a mixing stirring subassembly is set up in processing cylinder, when raw material enters processing cylinder, first, several cutting blades in the uppermost region of the pivot scatter and break the raw material that enters first, then several oblique rectangular plates promote the further mixing of raw material in processing cylinder, finally, the spiral blade stirs and extrudes the raw material close to the bottom export, thereby can carry out all -round, multilevel stirring mixing to multiple raw materials, greatly improves the uniformity of raw material mixing, makes the quality of injection moulded product more stable, and the performance is more consistent.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to a raw material mixing and feeding hopper for a plastic injection molding machine. Background Technology

[0002] Plastic injection molding machines are the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molding dies.

[0003] However, it is difficult to achieve uniform dispersion of various raw materials during the mixing process, which leads to unstable quality and performance differences in injection molded products. Secondly, due to the characteristics of plastic raw materials, such as irregular particle shape and humidity changes, they are prone to accumulating during feeding, which hinders the smooth entry of raw materials into the processing cylinder and seriously affects production efficiency. Utility Model Content

[0004] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a reasonably designed raw material mixing and feeding hopper for a plastic injection molding machine, which can solve the above-mentioned defects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a processing cylinder, a mixing and stirring assembly is provided inside the processing cylinder, an anti-clogging feeding assembly is provided at the top of the processing cylinder, and a controllable discharge rate assembly is provided at the bottom of the processing cylinder.

[0006] Preferably, the mixing assembly includes a rotating shaft rotatably connected to the processing cylinder, a driven bevel gear is provided at the top of the rotating shaft, a servo motor is provided at the top of the processing cylinder, a driving bevel gear is provided at the transmission end of the servo motor, the driving bevel gear is meshed with the driven bevel gear, a plurality of cutting blades are provided on the rotating shaft inside the processing cylinder, a plurality of rectangular plates are provided below the plurality of cutting blades, and a spiral blade is provided below the plurality of rectangular plates.

[0007] Preferably, the anti-clogging feeding assembly includes a feeding box communicating with the processing cylinder, a stirring shaft is rotatably installed inside the feeding box, a plurality of stirring plates are arranged on the stirring shaft inside the feeding box, a sprocket is provided on both the stirring shaft and the transmission end of the servo motor, two of the sprockets are connected by chain drive, a cover plate is hinged to the bottom of the feeding box, and a handle is provided on the cover plate.

[0008] Preferably, the controllable discharge assembly includes a discharge box communicating with the processing cylinder, a support plate is provided on one side of the discharge box, a telescopic cylinder is provided on the support plate, a baffle is hinged inside the discharge box, a driving rod is hinged to the bottom of the baffle, and the end of the driving rod away from the baffle is hinged to the output end of the telescopic cylinder.

[0009] Preferably, the processing cylinder is also provided with an observation window, and a plurality of mounting plates are provided at the bottom of the processing cylinder on the outer periphery of the discharge box, and a plurality of mounting holes are provided on each of the mounting plates.

[0010] The beneficial effects of this utility model after adopting the above structure are: This invention features a mixing and stirring assembly inside the processing cylinder. When raw materials enter the cylinder, several cutting blades at the top of the rotating shaft first break up and crush the incoming materials. Then, several inclined rectangular plates push the materials to mix further within the cylinder. Finally, spiral blades stir and compress the materials near the bottom outlet. This allows for comprehensive and multi-layered mixing of various raw materials, greatly improving the uniformity of the mixture and resulting in more stable quality and consistent performance of injection molded products.

[0011] This invention features an anti-clogging feeding component. When raw materials enter the feeding box, the drive end of the servo motor rotates, and the two sprockets are connected by a chain drive, causing the stirring shaft inside the feeding box to rotate, which in turn drives several stirring plates to rotate. This stirs the raw materials, reducing clogging during feeding and thus improving production efficiency.

[0012] This invention features a controllable discharge volume component within the discharge box. When the output end of the telescopic cylinder extends to the left, the rod pushes the baffle upward, reducing the angle between the baffle and the inner wall of the discharge box, thereby reducing the amount of material falling. Conversely, when the output end of the telescopic cylinder retracts to the right, the rod drives the baffle downward, increasing the angle between the baffle and the inner wall of the discharge box, thereby increasing the amount of material falling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a cross-sectional view of the internal structure of the processing cylinder of this utility model; Figure 4 This is a schematic diagram of the anti-clogging feeding component of this utility model; Figure 5 This is a schematic diagram of the controllable discharge rate of this utility model; Explanation of reference numerals in the attached figures: 1. Processing cylinder; 2. Mixing and stirring assembly; 21. Rotating shaft; 22. Driven bevel gear; 23. Servo motor; 24. Driven bevel gear; 25. Cutting blade; 26. Rectangular plate; 27. Spiral blade; 3. Anti-clogging feeding assembly; 31. Feed box; 32. Stirring shaft; 33. Stirring plate; 34. Sprocket; 35. Chain; 36. Cover plate; 37. Handle; 4. Controllable discharge assembly; 41. Discharge box; 42. Support plate; 43. Telescopic cylinder; 44. Baffle; 45. Drive rod; 5. Observation window; 6. Mounting plate; 7. Mounting hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1-5 As shown, the present invention proposes a raw material mixing and feeding hopper for a plastic injection molding machine, which includes a processing cylinder 1, providing space for mixing raw materials, a mixing and stirring component 2 is provided inside the processing cylinder 1, an anti-clogging feeding component 3 is provided at the top of the processing cylinder 1, and a controllable discharge component 4 is provided at the bottom of the processing cylinder 1. The mixing assembly 2 includes a rotating shaft 21 rotatably connected to the processing cylinder 1. A driven bevel gear 22 is provided at the top of the rotating shaft 21. A servo motor 23 is provided at the top of the processing cylinder 1. An active bevel gear 24 is provided at the transmission end of the servo motor 23. The active bevel gear 24 meshes with the driven bevel gear 22. When the transmission end of the servo motor 23 rotates, it drives the rotating shaft 21 to rotate. Several cutting blades 25 are provided on the rotating shaft 21 inside the processing cylinder 1. The cutting blades 25 also pre-crush and disperse large pieces of raw material. Several rectangular plates 26 are provided below the cutting blades 25 to further mix the raw material. Spiral blades 27 are provided below the rectangular plates 26 to stir and compress the raw material near the bottom. The anti-clogging feeding assembly 3 includes a feeding box 31 connected to the processing cylinder 1. A stirring shaft 32 is rotatably installed inside the feeding box 31. Several stirring plates 33 are arranged on the stirring shaft 32 inside the feeding box 31. The rotating stirring plates 33 can turn over the raw materials in the feeding box 31, reducing the possibility of blockage when the raw materials fall. Both the stirring shaft 32 and the transmission end of the servo motor 23 are provided with sprockets 34. The two sprockets 34 are connected by a chain 35. Only one servo motor 23 is needed as the driving device, thereby reducing procurement costs. A cover plate 36 is hinged to the bottom of the feeding box 31, which can selectively keep the feeding box 31 in a closed state. A handle 37 is provided on the cover plate 36 to further facilitate the operator to drag the cover plate 36. The controllable discharge assembly 4 includes a discharge box 41 connected to the processing cylinder 1. A support plate 42 is provided on one side of the discharge box 41 to support the telescopic cylinder 43. The telescopic cylinder 43 is provided on the support plate 42. A baffle 44 is hinged inside the discharge box 41. The baffle 44 can be moved to change the angle with the side wall of the discharge box 41. A driving rod 45 is hinged to the bottom of the baffle 44. The end of the driving rod 45 away from the baffle 44 is hinged to the output end of the telescopic cylinder 43. The processing cylinder 1 is also equipped with an observation window 5, through which the operator can observe the working conditions inside the processing cylinder 1. Several mounting plates 6 are provided at the bottom of the processing cylinder 1 on the outer periphery of the discharge box 41. Several mounting plates 6 are provided with several mounting holes 7, and the operator can use the mounting plates 6 to fix the device on the plastic injection molding machine.

[0016] The principle and usage process of this utility model: Before use, the operator first needs to connect the servo motor 23 to an external power supply. Then, when needed, the operator first opens the cover plate 36 on the feed box 31 and pours the raw material to be mixed into the feed box 31. At this time, the raw material in the feed box 31 falls into the processing cylinder 1 through the bottom. Then, the servo motor 23 is started. The transmission end of the servo motor 23 drives the active bevel gear 24 and the sprocket 34 to rotate. Since the active bevel gear 24 and the driven bevel gear 22 are meshed, they can drive the rotating shaft 21 in the processing cylinder 1 to rotate. At the same time, the two sprockets 34 are connected by the chain 35, so they can drive the stirring shaft 32 in the feed box 31 to rotate together. The stirring plates 33 on the stirring shaft 32 can continuously stir the raw material in the feed box 31, thus further preventing the raw material in the feed box 31 from getting blocked when it falls. The raw material falling into the processing cylinder 1 is first cut by the cutting blades 25 on the rotating shaft 21, so the input raw material can be cut first. Initially, the raw materials are broken up to disperse larger clumps. At this time, several inclined rectangular plates 26 in the middle area can push the raw materials to flow horizontally and vertically in the processing cylinder 1, further mixing the raw materials. The spiral blades 27 in the lower area can stir and compact the raw materials near the bottom outlet. Finally, the raw materials are discharged through the discharge box 41. When the raw materials fall from the discharge box 41, the operator can control the angle between the baffle 44 and the side wall inside the discharge box 41, thereby controlling the discharge amount, i.e., controlling the output end of the telescopic cylinder 43. When the output end of the telescopic cylinder 43 is pushed to the left, it can drive the baffle 44 to move upward, thereby reducing the angle between the baffle 44 and the side wall, thus reducing the falling amount. Conversely, when the output end of the telescopic cylinder 43 is pushed to the right, it can drive the baffle 44 to move downward, thereby increasing the angle between the baffle 44 and the side wall, thus increasing the falling amount of raw materials. Finally, these mixed raw materials fall into the injection molding machine through the outlet at the bottom of the discharge box 41.

[0017] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A raw material mixing and feeding hopper for a plastic injection molding machine, comprising a processing cylinder (1), characterized in that: The processing cylinder (1) is equipped with a mixing and stirring component (2), the top of the processing cylinder (1) is equipped with an anti-clogging feeding component (3), and the bottom of the processing cylinder (1) is equipped with a controllable discharge component (4).

2. The raw material mixing and feeding hopper for a plastic injection molding machine according to claim 1, characterized in that: The mixing assembly (2) includes a rotating shaft (21) rotatably connected to the processing cylinder (1). A driven bevel gear (22) is provided at the top of the rotating shaft (21). A servo motor (23) is provided at the top of the processing cylinder (1). An active bevel gear (24) is provided at the transmission end of the servo motor (23). The active bevel gear (24) meshes with the driven bevel gear (22). A plurality of cutting blades (25) are provided on the rotating shaft (21) inside the processing cylinder (1). A plurality of rectangular plates (26) are provided below the plurality of cutting blades (25). A spiral blade (27) is provided below the plurality of rectangular plates (26).

3. The raw material mixing and feeding hopper for a plastic injection molding machine according to claim 2, characterized in that: The anti-clogging feeding assembly (3) includes a feeding box (31) connected to the processing cylinder (1). A stirring shaft (32) is rotatably installed inside the feeding box (31). Several stirring plates (33) are arranged on the stirring shaft (32) inside the feeding box (31). A sprocket (34) is provided on both the stirring shaft (32) and the transmission end of the servo motor (23). The two sprockets (34) are connected by a chain (35). A cover plate (36) is hinged to the bottom of the feeding box (31). A handle (37) is provided on the cover plate (36).

4. The raw material mixing and feeding hopper for a plastic injection molding machine according to claim 3, characterized in that: The controllable discharge assembly (4) includes a discharge box (41) connected to the processing cylinder (1). A support plate (42) is provided on one side of the discharge box (41). A telescopic cylinder (43) is provided on the support plate (42). A baffle (44) is hinged inside the discharge box (41). A drive rod (45) is hinged to the bottom of the baffle (44). One end of the drive rod (45) away from the baffle (44) is hinged to the output end of the telescopic cylinder (43).

5. The raw material mixing and feeding hopper for a plastic injection molding machine according to claim 4, characterized in that: The processing cylinder (1) is also provided with an observation window (5), and the bottom of the processing cylinder (1) is provided with several mounting plates (6) on the outer periphery of the discharge box (41), and several mounting holes (7) are provided on the mounting plates (6).

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