Feeding mechanism of injection molding machine

Abstract

The utility model discloses a feeding mechanism of an injection molding machine, which relates to the technical field of injection molding machines and comprises a feeding hopper, a hollow shaft is rotatably connected in the upper wall of the feeding hopper, a plurality of main stirring paddles are rotatably connected on the side surface of the hollow shaft, and a plurality of auxiliary stirring paddles are fixedly connected on the surfaces of the main stirring paddles. A hollow shaft is arranged on the inner wall of the feeding hopper, two pairs of connecting rods are fixedly connected to the side surface of the hollow shaft, the outer ends of each pair of connecting rods are fixedly connected with scraping plates, and the scraping plates make contact with the inner wall face of the feeding hopper. Raw materials can be stirred and separated through circular motion of the main stirring paddles, the raw materials are prevented from caking in the feeding hopper, the feeding hopper is prevented from being blocked, the raw materials can be further stirred through circular motion of the auxiliary stirring paddles, and the raw materials are stirred and separated more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a feeding mechanism of an injection molding machine. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. The injection molding machine feeds the material through the corresponding feeding mechanism.

[0003] For example, in the utility model patent with announcement number CN214323994U, a feeding funnel for an injection molding machine is disclosed. The feeding funnel is installed on the injection molding machine body. The feeding funnel includes a conical main body, and the upper and lower ends of the main body are both provided with openings. The upper end of the main body is installed with a flow guide structure, and the lower end of the main body extends downward with an upper connecting cylinder. A lower connecting cylinder is fixedly installed on the outer side of the feed port of the injection molding machine body, and the upper connecting cylinder is fixedly installed in the lower connecting cylinder. A supporting mechanism is also installed between the main body and the injection molding machine body.

[0004] However, when the utility model is in use, some raw materials will adhere to the inner wall of the feed funnel. If it is not cleaned for a long time, the scab will become more and more severe. In addition, when feeding, too much raw material is poured in at one time, and the raw material in the feed funnel has no time to be discharged into the injection molding machine body, which will cause the raw material to agglomerate in the feed funnel, causing the feed funnel to be blocked, so that the staff needs to deal with the materials accumulated in the feed funnel and unclog the feed funnel, which consumes a lot of time and energy of the staff and reduces work efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a feeding mechanism for an injection molding machine to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a feeding mechanism of an injection molding machine, comprising a feeding hopper, the bottom of the feeding hopper is connected to an organism, a hollow shaft is rotatably connected in the upper wall of the feeding hopper, the upper end of the hollow shaft is open, a plurality of main stirring paddles are rotatably connected on the side surface of the hollow shaft and located in the feeding hopper, a plurality of auxiliary stirring paddles are fixedly connected on the surface of the main stirring paddle, a fourth bevel gear is fixedly connected to the inner end of the main stirring paddle through the side wall of the hollow shaft, a driving box is fixedly connected to the upper surface of the feeding hopper, a fixed rod is fixedly connected on the top surface of the driving box and located in the hollow shaft, a plurality of third bevel gears are fixedly connected on the side surface of the fixed rod, the third bevel gear is meshed with the fourth bevel gear, two pairs of connecting rods are fixedly connected to the side surface of the hollow shaft, a scraper is fixedly connected to the outer end of each pair of connecting rods, the scraper contacts the inner wall of the feeding hopper, a feeding pipe is connected to the upper surface of the feeding hopper, and a driving assembly is provided in the driving box.

[0007] Preferably, the driving assembly includes a second bevel gear, the second bevel gear is fixedly connected to the side surface of the hollow shaft and located inside the driving box, a motor is fixedly connected to the right surface of the driving box, the motor driving end passes through the side wall of the driving box and is fixedly connected to the first bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0008] Preferably, the upper end of the feed pipe is covered with a pipe cover.

[0009] Beneficial Effects

[0010] The utility model provides a feeding mechanism for an injection molding machine, which has the following beneficial effects:

[0011] 1. The raw materials adhering to the inner wall of the feed hopper can be scraped off by a pair of scrapers moving in a circular motion;

[0012] 2. The raw materials can be stirred and separated by the circular motion of multiple main stirring paddles to avoid agglomeration of the raw materials in the feed hopper and prevent the feed hopper from being blocked. The raw materials can be further stirred by the circular motion of multiple auxiliary stirring paddles to make the stirring and separation of the raw materials more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 for Figure 1 A is an enlarged schematic diagram.

[0015] In the figure: 1. feed hopper; 2. feed pipe; 3. pipe cover; 4. connecting rod; 5. scraper; 6. fixing rod; 7. hollow shaft; 8. machine body; 9. motor; 10. second bevel gear; 11. fourth bevel gear; 12. third bevel gear; 13. first bevel gear; 14. auxiliary stirring paddle; 15. main stirring paddle; 16. drive box. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., are only with reference to the directions shown in the drawings. The directional terms used are used to illustrate and understand the present invention, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] See also Figure 1-2 The utility model provides a technical solution: a feeding mechanism of an injection molding machine, comprising a feeding hopper 1, the bottom of the feeding hopper 1 is connected to an organism 8, a hollow shaft 7 is rotatably connected in the upper wall of the feeding hopper 1, the upper end of the hollow shaft 7 is open, a plurality of main stirring paddles 15 are rotatably connected on the side surface of the hollow shaft 7 and located in the feeding hopper 1, a plurality of auxiliary stirring paddles 14 are fixedly connected on the surface of the main stirring paddle 15, a fourth bevel gear 11 is fixedly connected to the inner end of the main stirring paddle 15 penetrating the side wall of the hollow shaft 7, a driving box 16 is fixedly connected to the upper surface of the feeding hopper 1, a fixed rod 6 is fixedly connected to the top surface of the driving box 16 and located in the hollow shaft 7, and a plurality of third bevel gears are fixedly connected to the side surface of the fixed rod 6 12, the third bevel gear 12 is meshed with the fourth bevel gear 11, two pairs of connecting rods 4 are fixedly connected to the side surface of the hollow shaft 7, and the outer ends of each pair of connecting rods 4 are fixedly connected to a scraper 5, the scraper 5 is in contact with the inner wall surface of the feed hopper 1, and the upper surface of the feed hopper 1 is connected to the feed pipe 2, and a drive assembly is arranged in the drive box 16; the drive assembly includes a second bevel gear 10, the side surface of the hollow shaft 7 and the second bevel gear 10 is fixedly connected in the drive box 16, the right surface of the drive box 16 is fixedly connected to the motor 9, the driving end of the motor 9 passes through the side wall of the drive box 16 and is fixedly connected to the first bevel gear 13, and the first bevel gear 13 is meshed with the second bevel gear 10; the upper end of the feed pipe 2 is covered with a pipe cover 3.

[0019] Through the personnel in this field, all the electrical components in this case are electrically connected to their corresponding power supplies, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working sequence between the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0020] Embodiment: According to the specification attached Figure 1-2 It can be known that when in use, raw materials can be added into the feed hopper 1 through the feed pipe 2, the starting motor 9 can drive the first bevel gear 13 to rotate, the rotation of the first bevel gear 13 can drive the second bevel gear 10 to rotate, the rotation of the second bevel gear 10 can drive the hollow shaft 7 to rotate, the rotation of the hollow shaft 7 can drive multiple main stirring paddles 15 and multiple fourth bevel gears 11 and two pairs of connecting rods 4 to move in a circle, the circular movement of the two pairs of connecting rods 4 can drive a pair of scrapers 5 to move in a circle, and the circular movement of the pair of scrapers 5 can remove the raw materials stuck in the feed hopper 1. The raw materials on the inner wall of the hopper 1 are scraped off, and the raw materials can be stirred and separated by the circular motion of multiple main stirring paddles 15 to avoid the raw materials from agglomerating in the feed hopper 1 and preventing the feed hopper 1 from being blocked. The fourth bevel gear 11 can be rotated by the circular motion of the fourth bevel gear 11 and the third bevel gear 12 can be stationary. The rotation of the fourth bevel gear 11 can drive the auxiliary stirring paddle 14 to move in a circular motion. The raw materials can be further stirred by the circular motion of multiple auxiliary stirring paddles 14, so that the stirring and separation of the raw materials is more uniform, and the raw materials can enter the machine body 8 through the feed hopper 1.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for an injection molding machine, characterized in that: The invention comprises a feed hopper (1), the bottom of the feed hopper (1) is connected to an organism (8), a hollow shaft (7) is rotatably connected to the inner wall of the upper wall of the feed hopper (1), the upper end of the hollow shaft (7) is open, a plurality of main stirring paddles (15) are rotatably connected to the side surface of the hollow shaft (7) and are located in the feed hopper (1), a plurality of auxiliary stirring paddles (14) are fixedly connected to the surface of the main stirring paddle (15), the inner end of the main stirring paddle (15) passes through the side wall of the hollow shaft (7) and is fixedly connected to a fourth bevel gear (11), and a drive box (16) is fixedly connected to the upper surface of the feed hopper (1). A fixed rod (6) is fixedly connected to the top surface of the driving box (16) and is located inside the hollow shaft (7); a plurality of third bevel gears (12) are fixedly connected to the side surface of the fixed rod (6); the third bevel gears (12) are meshed with the fourth bevel gear (11); two pairs of connecting rods (4) are fixedly connected to the side surface of the hollow shaft (7); a scraper (5) is fixedly connected to the outer end of each pair of connecting rods (4); the scraper (5) is in contact with the inner wall surface of the feed hopper (1); the upper surface of the feed hopper (1) is connected to a feed pipe (2); and a driving assembly is provided inside the driving box (16).

2. A feeding mechanism for an injection molding machine according to claim 1, characterized in that: The driving assembly comprises a second bevel gear (10), the second bevel gear (10) is fixedly connected to the side surface of the hollow shaft (7) and is located inside the driving box (16), a motor (9) is fixedly connected to the right surface of the driving box (16), a driving end of the motor (9) passes through the side wall of the driving box (16) and is fixedly connected to the first bevel gear (13), and the first bevel gear (13) is meshed with the second bevel gear (10).

3. A feeding mechanism for an injection molding machine according to claim 1, characterized in that: The upper end of the feed pipe (2) is covered with a pipe cover (3).

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