Feeding mechanism for injection molding of plastic meal boxes

Abstract

The feeding mechanism comprises a base, a stock bin and a feeding pipe are fixed to the upper end of the base, a discharging opening is formed in the side wall of the stock bin, a feeding end is arranged on the side wall, close to the lower end, of the feeding pipe, the feeding end is connected with the discharging opening, and the feeding end is connected with the feeding pipe. A discharging end is arranged on the side wall, close to the upper end, of the feeding pipe, a lifting mechanism is arranged in the feeding pipe, a feeding hopper is arranged below the discharging end, a feeding pipe is arranged at the upper end of the feeding hopper and connected with the discharging end, a discharging port is formed in the lower end of the feeding hopper, and a screening mechanism is arranged in the feeding hopper. According to the vibrating screen, materials can be quickly vibrated and screened, the material screening effect is improved, screened waste can be directly discharged outwards, it can be guaranteed that follow-up materials are smoothly screened, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding mechanisms, in particular to a feeding mechanism for injection molding of a plastic lunch box. Background Art

[0002] Injection molding is a method of producing industrial products. Products are usually made using rubber injection molding and plastic injection molding. Plastic lunch boxes are usually made using injection molding, and a hopper is required to feed the molding machine during molding.

[0003] The patent with the publication number CN214239241U and the name of a lunch box injection molding feeding mechanism discloses a lunch box injection molding feeding mechanism, including a first storage bin and a conveying pipe, the conveying pipe is vertically arranged, the bottom of the conveying pipe is provided with a feed port connected to the first storage bin, the feed port and the bottom of the first storage bin are at the same or similar height; a motor fixedly connected to the conveying pipe is arranged above the conveying pipe, and the motor shaft of the motor is arranged in the conveying pipe. In this patent, the material is screened only by setting a fixed screen pipe, and the screening effect is not good enough due to the lack of effective movement of the material. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a feeding mechanism for injection molding of a plastic lunch box.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A feeding mechanism for injection molding of a plastic lunch box comprises a base, a silo and a feeding pipe are fixed to the upper end of the base, a discharge port is provided on the side wall of the silo, a feeding end is provided on the side wall of the feeding pipe close to the lower end, the feeding end is connected to the discharge port, a discharge end is provided on the side wall of the feeding pipe close to the upper end, a lifting mechanism is provided inside the feeding pipe, a feeding hopper is provided below the discharge end, a feeding pipe is provided at the upper end of the feeding hopper, the feeding pipe is connected to the discharge end, a discharge port is provided at the lower end of the feeding hopper, and a screening mechanism is provided inside the feeding hopper.

[0007] As a further improvement of the utility model, the lifting mechanism includes a spiral blade arranged inside the feeding tube, and the two ends of the spiral blade are respectively rotatably connected to the upper and lower inner walls of the feeding tube. An electric motor is installed at the upper end of the feeding tube, and the output shaft of the motor passes through the feeding tube and is fixedly connected to the upper end of the spiral blade.

[0008] As a further improvement of the utility model, the screening mechanism includes a screen frame obliquely arranged inside the upper hopper, the lower end of the screen frame passes through the upper hopper, and the screen frame is slidably connected to the upper hopper, a screen is fixedly embedded on the inner bottom wall of the screen frame, and connecting frames are fixedly connected to the opposite side walls of the screen frame, and linear vibration motors are provided on the inner sides of the two connecting frames, and the linear vibration motors are installed on the side walls of the screen frame; a guide rod slidably connected to the connecting frame is penetrated through the connecting frame, and both ends of the guide rod are fixedly connected to the inner wall of the upper hopper; two springs are mounted on the guide rod, and the two springs are respectively arranged on both sides of the connecting frame, one end of the spring is connected to the connecting frame, and the other end of the spring is connected to the inner wall of the upper hopper.

[0009] As a further improvement of the present invention, the inner bottom wall of the upper hopper is a slope structure that slopes downward toward the discharge port.

[0010] As a further improvement of the present invention, the inner bottom wall of the silo is an inclined surface, and the discharge port is located at the lower end of the inclined surface.

[0011] As a further improvement of the utility model, a dust suction fan is installed on the top of the upper hopper.

[0012] Beneficial effects of the utility model:

[0013] By setting up a screening mechanism, elastically supporting the screen frame through springs, and starting the linear vibration motor, the screen frame can be driven to vibrate reciprocatingly. When materials enter the screen frame, they can be quickly vibrated and screened. Qualified materials flow directly down and are fed into the forming machine through the discharge port, thereby improving the material screening effect. The inclined screen frame can discharge the screened waste materials directly outward, thereby ensuring smooth screening of subsequent materials and improving screening efficiency.

[0014] By setting up a dust suction fan and starting the dust suction fan, the dust in the material can be sucked out in time to ensure the cleanliness of the material.

[0015] The utility model can perform rapid vibration screening on materials, improve the material screening effect, and can make the screened waste materials be directly discharged outside, can ensure the smooth screening of subsequent materials, and improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of a feeding mechanism for injection molding of a plastic lunch box proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a feeding mechanism for injection molding of a plastic lunch box proposed by the utility model;

[0018] Figure 3The utility model discloses a structural schematic diagram of a screening mechanism of a feeding mechanism for injection molding of a plastic lunch box.

[0019] In the figure: 1 base, 2 silo, 3 discharge port, 4 feed end, 5 feeding pipe, 6 spiral blade, 7 motor, 8 discharge end, 9 feeding pipe, 10 dust suction fan, 11 hopper, 12 discharge port, 13 screen frame, 14 screen, 15 connecting frame, 16 linear vibration motor, 17 guide rod, 18 spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Figure 1-Figure 3 A feeding mechanism for injection molding of a plastic lunch box comprises a base 1, a silo 2 and a feeding pipe 5 are fixed on the upper end of the base 1, a discharge port 3 is arranged on the side wall of the silo 2, the inner bottom wall of the silo 2 is an inclined surface, and the discharge port 3 is located at the lower end of the inclined surface, a feeding end 4 is arranged on the side wall of the feeding pipe 5 near the lower end, the feeding end 4 is connected to the discharge port 3, a discharge end 8 is arranged on the side wall of the feeding pipe 5 near the upper end, a lifting mechanism is arranged inside the feeding pipe 5, and the lifting mechanism comprises a spiral blade 6 arranged inside the feeding pipe 5, and the two ends of the spiral blade 6 rotate respectively. It is connected to the inner walls of the upper and lower sides of the feeding pipe 5, and a motor 7 is installed at the upper end of the feeding pipe 5. The output shaft of the motor 7 passes through the feeding pipe 5 and is fixedly connected to the upper end of the spiral blade 6. A feeding hopper 11 is provided below the discharge end 8, and a feeding pipe 9 is provided at the upper end of the upper hopper 11. A dust suction fan 10 is installed on the top of the upper hopper 11, and the feeding pipe 9 is connected to the discharge end 8. A discharge port 12 is provided at the lower end of the upper hopper 11. The inner bottom wall of the upper hopper 11 is an inclined structure inclined downward toward the discharge port 12, and a screening mechanism is provided inside the upper hopper 11.

[0022] The screening mechanism includes a screen frame 13 obliquely arranged inside the upper hopper 11, the lower end of the screen frame 13 passes through the upper hopper 11, and the screen frame 13 is slidably connected to the upper hopper 11, a screen 14 is fixedly embedded on the inner bottom wall of the screen frame 13, and connecting frames 15 are fixedly connected to the opposite side walls of the screen frame 13, and linear vibration motors 16 are provided on the inner sides of the two connecting frames 15, and the linear vibration motors 16 are installed on the side walls of the screen frame 13, and a guide rod 17 slidably connected to the connecting frame 15 is penetrated through the connecting frame 15, and both ends of the guide rod 17 are fixedly connected to the inner wall of the upper hopper 11, and two springs 18 are mounted on the guide rod 17, and the two springs 18 are respectively arranged on both sides of the connecting frame 15, one end of the spring 18 is connected to the connecting frame 15, and the other end of the spring 18 is connected to the inner wall of the upper hopper 11.

[0023] When the utility model is used, the material in the silo 2 enters the feeding pipe 5 through the discharge port 3, the motor 7 is started, and the spiral blade 6 is driven to rotate, so that the material can be lifted into the upper hopper 11, and the dust suction fan 10 is started to suck and discharge the dust in the material in time to ensure the cleanliness of the material, and the linear vibration motor 16 is started to drive the screen frame 13 to vibrate reciprocatingly, and the material enters the screen frame 13, which can be quickly vibrated and screened, and the qualified material directly flows down and is fed into the forming machine through the discharge port 12, and the inclined screen frame 13 can make the unqualified waste material screened out directly discharged to the outside.

[0024] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A feeding mechanism for injection molding of a plastic lunch box, comprising a base (1), characterized in that: A silo (2) and a feeding pipe (5) are fixed to the upper end of the base (1); a discharge port (3) is provided on the side wall of the silo (2); a feeding end (4) is provided on the side wall of the feeding pipe (5) near the lower end; the feeding end (4) is connected to the discharge port (3); a discharge end (8) is provided on the side wall of the feeding pipe (5) near the upper end; a lifting mechanism is provided inside the feeding pipe (5); a hopper (11) is provided below the discharge end (8); a feeding pipe (9) is provided at the upper end of the hopper (11); the feeding pipe (9) is connected to the discharge end (8); a discharge port (12) is provided at the lower end of the hopper (11); a screening mechanism is provided inside the hopper (11).

2. A plastic lunch box injection molding feeding mechanism according to claim 1, characterized in that: The lifting mechanism comprises a spiral blade (6) arranged inside the feeding tube (5), the two ends of the spiral blade (6) are rotatably connected to the upper and lower inner walls of the feeding tube (5), and the upper end of the feeding tube (5) is equipped with a motor (7), the output shaft of the motor (7) passes through the feeding tube (5) and is fixedly connected to the upper end of the spiral blade (6).

3. A plastic lunch box injection molding feeding mechanism according to claim 1, characterized in that: The screening mechanism comprises a screen frame (13) obliquely arranged inside the upper hopper (11), the lower end of the screen frame (13) passes through the upper hopper (11), and the screen frame (13) is slidably connected to the upper hopper (11), a screen (14) is fixedly embedded on the inner bottom wall of the screen frame (13), and connecting frames (15) are fixedly connected to the opposite side walls of the screen frame (13), and the inner sides of the two connecting frames (15) are provided with linear vibration motors (16), and the linear vibration motors (16) are installed on the screen frame. The connecting frame (13) is provided with a guide rod (17) which is slidably connected to the connecting frame (15), and both ends of the guide rod (17) are fixedly connected to the inner wall of the upper hopper (11). Two springs (18) are mounted on the guide rod (17), and the two springs (18) are respectively arranged on both sides of the connecting frame (15), one end of the spring (18) is connected to the connecting frame (15), and the other end of the spring (18) is connected to the inner wall of the upper hopper (11).

4. A plastic lunch box injection molding feeding mechanism according to claim 1, characterized in that: The inner bottom wall of the upper hopper (11) is a slope structure that slopes downward toward the discharge port (12).

5. A plastic lunch box injection molding feeding mechanism according to claim 1, characterized in that: The inner bottom wall of the silo (2) is an inclined surface, and the discharge port (3) is located at the lower end of the inclined surface.

6. A plastic lunch box injection molding feeding mechanism according to claim 1, characterized in that: A dust suction fan (10) is installed on the top of the upper hopper (11).

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