A feeding device for processing plastic products

Abstract

The utility model provides a kind of for plastic product processing's feeding device, belong to plastic product processing technical field. Including bottom plate, further include inclined screw conveyor, inclined screw conveyor includes conveying shell, variable diameter spiral auger is rotatably connected in conveying shell, conveying shell oblique lower end top is equipped with feed inlet, feed inlet top is equipped with feed hopper;Located the bunker above feed hopper, the stirring subassembly is equipped in bunker, the lower part of bunker outer side wall is equipped with several L type supporting legs, L type supporting leg bottom is equipped with weighing sensor, the supporting leg is equipped in weighing sensor bottom. The utility model weighing sensor makes that the total weight of entire bunker and internal material can be measured in real time, accurately, and the plastic particle raw material in the matching bunker is added to the material adding port of downstream plastic processing equipment from the discharge port after the accurate control of variable diameter spiral auger, realizes feeding work, accurately ensures feeding supply amount, so as to avoid that feeding is too much or too little and influences plastic processing quality.

Description

Technical Field

[0001] This utility model provides a feeding device for processing plastic products, belonging to the field of plastic product processing technology. Background Technology

[0002] Plastic product processing is a general term for household and industrial products made primarily from plastics. It includes all processes such as injection molding, thermoforming, and extrusion using plastics as raw materials. During plastic processing, since the raw materials are mostly in granular form, a feeding process is required to transport these granular materials.

[0003] Currently, traditional feeding devices mainly use screw feeders, which often rely on time-controlled feeding. Furthermore, the screw pitch of the screw feeder is usually constant, making it difficult to guarantee precise feeding volume control. This results in fluctuations in the feeding quantity, easily leading to overfeeding or underfeeding, which negatively impacts the quality of plastic processing. Therefore, this invention provides a feeding device for processing plastic products. Utility Model Content

[0004] The technical problem solved by this utility model is that precise control of material feeding cannot be guaranteed, and it is impossible to accurately ensure the material supply, which easily causes fluctuations in material feeding, affecting the quality of plastic processing.

[0005] To solve the technical problem, the technical solution provided by this utility model is as follows: a feeding device for processing plastic products, including a base plate, and an inclined screw conveyor installed on the top of the base plate. The inclined screw conveyor includes a conveying shell, and a variable diameter screw auger is rotatably connected inside the conveying shell. A feed inlet is provided at the top of the lower inclined end of the conveying shell, and a feed hopper is provided at the top of the feed inlet.

[0006] The hopper is located above the feed hopper. The hopper is equipped with a stirring assembly. The lower part of the outer wall of the hopper is provided with several L-shaped support legs. The bottom of the L-shaped support legs is provided with a weighing sensor. The bottom of the weighing sensor is provided with a support leg fixedly installed on the top of the base plate.

[0007] Furthermore, the inclined screw conveyor also includes a conveying motor fixedly mounted on the conveying shell for driving the variable diameter screw auger to rotate, a support plate fixedly connected to the conveying shell is provided on the top of the base plate, and a discharge port is provided at the bottom of the inclined upper end of the conveying shell.

[0008] Furthermore, the mixing assembly includes a horizontal plate fixedly installed on the top of the hopper, a mixing motor is provided on the top of the horizontal plate, and a mixing rod placed inside the hopper is fixedly connected to the output end of the mixing motor. Several mixing blades are provided on the circumference of the mixing rod.

[0009] Furthermore, the bottom of the hopper is provided with a discharge port located below the feed hopper, the distance between the bottom of the discharge port and the top of the feed hopper is 3-8mm, the diameter of the feed hopper opening is larger than the diameter of the discharge port, and a flow control valve is provided on the discharge port.

[0010] Furthermore, the bottom of the base plate is symmetrically equipped with casters at the four corners.

[0011] Furthermore, the number of L-shaped legs is 3-4, and a reinforcing plate is provided between the inner sidewalls of the L-shaped legs.

[0012] The beneficial effects of this utility model are:

[0013] The weighing sensor enables the total weight of the entire hopper and its internal materials to be measured in real time and accurately. Combined with the precise control of the plastic granules in the hopper by the variable diameter auger, the material is added from the discharge port to the feeding port of the downstream plastic processing equipment, thus realizing the feeding operation and accurately ensuring the feeding supply to avoid affecting the plastic processing quality due to excessive or insufficient feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a feeding device for processing plastic products according to this utility model. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of a feeding device for processing plastic products according to this utility model. Figure 2 .

[0016] Figure 3 This is a schematic diagram of the structure of a feeding device for processing plastic products according to this utility model. Figure 3 .

[0017] Figure 4 This is a plan view of a feeding device for processing plastic products according to the present invention.

[0018] 1. Base plate; 2. Inclined screw conveyor; 3. Conveyor shell; 4. Variable diameter screw auger; 5. Feed inlet; 6. Feed hopper; 7. Hopper; 8. Mixing assembly; 9. L-shaped support legs; 10. Weighing sensor; 11. Support legs; 12. Discharge port; 13. Horizontal plate; 14. Mixing rod; 15. Mixing blade; 16. Discharge port; 17. Flow control valve; 18. Casters; 19. Reinforcing plate. Detailed Implementation

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0020] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0021] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] According to the appendix Figure 1 , 3 As shown in Figure 4: This utility model provides a feeding device for processing plastic products: it includes a base plate 1, with universal wheels 18 symmetrically arranged at the four corners of the bottom of the base plate 1 for convenient movement; it also includes an inclined screw conveyor 2 installed on the top of the base plate 1; the inclined screw conveyor 2 includes a conveying shell 3, with a variable diameter screw auger 4 rotatably connected inside the conveying shell 3; a feed inlet 5 is provided at the top of the inclined lower end of the conveying shell 3; a feed hopper 6 is provided at the top of the feed inlet 5; the inclined screw conveyor 2 also includes a conveyor belt fixedly installed on the conveying shell 3 for driving the variable diameter screw auger 4 to rotate. The machine has a support plate fixedly connected to the conveying shell 3 on the top of the base plate 1. The conveying shell 3 has a discharge port 12 at the bottom of the upper inclined end. Specifically, the pitch of the lower inclined end of the variable diameter spiral auger 4 is 1.5-3 times that of the upper inclined end. When the conveying motor is started, the variable diameter spiral auger 4 is driven to rotate. Plastic granules are added into the conveying shell 3 from the feed hopper 6 and the feed port 5. The large pitch of the front section of the variable diameter spiral auger 4 accelerates the feeding, while the small pitch of the rear section of the variable diameter spiral auger 4 precisely controls the amount of material. After the precise amount control of the variable diameter spiral auger 4, the plastic granules are conveyed obliquely upward and finally discharged from the discharge port 12.

[0023] As per the instruction manual Figure 1 , 2As shown: A hopper 7 is located above the feed hopper 6. The hopper 7 is equipped with a stirring assembly 8. Several L-shaped support legs 9 are provided on the lower part of the outer wall of the hopper 7. There are 3-4 L-shaped support legs 9. A reinforcing plate 19 is provided between the inner side walls of the L-shaped support legs 9 to strengthen and fix them. A weighing sensor 10 is provided at the bottom of the L-shaped support legs 9. The weighing sensor 10 is provided at the bottom of the base plate 1 with a support leg 11 fixedly installed on the top of the base plate 1. The bottom of the hopper 7 is provided with a discharge port 16 located below the feed hopper 6. The distance between the bottom of the discharge port 16 and the top of the feed hopper 6 is 3-8mm. The diameter of the hopper 6 opening is larger than the diameter of the discharge port 16 to effectively prevent plastic granules from splashing out. A flow control valve 17 is provided on the discharge port 16. Specifically, the weighing sensor 10 is used to monitor the overall weight change of the hopper 7 in real time, so that the total weight of the entire hopper and the materials inside can be measured in real time and accurately. The flow control valve 17 is opened to add the plastic granules in the hopper 7 into the feed hopper 6 through the discharge port 16.

[0024] As per the instruction manual Figure 1 , 3 As shown: The mixing assembly 8 includes a horizontal plate 13 fixedly installed on the top of the hopper 7. A mixing motor is installed on the top of the horizontal plate 13. The output end of the mixing motor is fixedly connected to a mixing rod 14 placed inside the hopper 7. Several mixing blades 15 are arranged on the circumference of the mixing rod 14. Specifically, starting the mixing motor drives the mixing rod 14 to rotate, which in turn drives the mixing blades 15 to rotate, effectively preventing the plastic granule raw material from bridging and blocking in the hopper 7.

[0025] The control method of this utility model is achieved through a programmable logic controller (PLC) with a human-machine interface. A Siemens S7-1200 series PLC is used as the core controller. The PLC controls the opening and closing of the conveyor motor, stirring motor, and flow control valve 17, and receives signals from the weighing sensor 10. After processing, the signals are displayed on the human-machine interface. The controller uses existing mature technologies, which are not shown in the figures and will not be described in detail here. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connections will not be explained in detail here.

[0026] The principle of this utility model

[0027] In use, add an appropriate amount of plastic granules to the hopper 7, start the stirring motor to drive the stirring blades 15 to rotate around the stirring rod 14, effectively preventing the plastic granules from bridging and clogging in the hopper 7. Open the flow control valve 17 to add the plastic granules in the hopper 7 into the feed hopper 6 through the discharge port 16. Start the conveying motor to drive the variable diameter auger 4 to rotate, so that the plastic granules in the hopper 7 are added from the discharge port to the feeding port of the downstream plastic processing equipment (such as injection molding machine, extruder) after being precisely controlled by the variable diameter auger 4, thus realizing the feeding operation. With the weighing sensor 10, the total weight of the entire hopper and the materials inside can be measured in real time and accurately, ensuring the feeding supply and preventing the feeding of too much or too little material from affecting the quality of plastic processing.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A feeding device for processing plastic products, comprising a base plate (1), characterized in that: Also includes An inclined screw conveyor (2) is installed on the top of the base plate (1). The inclined screw conveyor (2) includes a conveying shell (3). A variable diameter screw auger (4) is rotatably connected inside the conveying shell (3). A feed inlet (5) is provided at the top of the inclined lower end of the conveying shell (3). A feed hopper (6) is provided at the top of the feed inlet (5). The hopper (7) is located above the feed hopper (6). The hopper (7) is equipped with a stirring assembly (8). The lower part of the outer wall of the hopper (7) is provided with several L-shaped support legs (9). The bottom of the L-shaped support legs (9) is provided with a weighing sensor (10). The bottom of the weighing sensor (10) is provided with a support leg (11) fixedly installed on the top of the base plate (1).

2. The feeding device for processing plastic products according to claim 1, characterized in that: The inclined screw conveyor (2) also includes a conveying motor fixedly mounted on the conveying shell (3) for driving the variable diameter screw auger (4) to rotate. The bottom plate (1) is provided with a support plate fixedly connected to the conveying shell (3) at the top. The conveying shell (3) is provided with a discharge port (12) at the bottom of the inclined upper end.

3. The feeding device for processing plastic products according to claim 1, characterized in that: The stirring assembly (8) includes a horizontal plate (13) fixedly installed on the top of the hopper (7). A stirring motor is provided on the top of the horizontal plate (13). The output end of the stirring motor is fixedly connected to a stirring rod (14) placed inside the hopper (7). Several stirring blades (15) are provided on the circumference of the stirring rod (14).

4. The feeding device for processing plastic products according to claim 1, characterized in that: The bottom of the hopper (7) is provided with a discharge port (16) located below the feed hopper (6). The distance between the bottom of the discharge port (16) and the top of the feed hopper (6) is 3-8mm. The diameter of the feed hopper (6) is larger than the diameter of the discharge port (16). The discharge port (16) is provided with a flow control valve (17).

5. A feeding device for processing plastic products according to claim 1, characterized in that: The bottom plate (1) is symmetrically provided with casters (18) at the four corners of the bottom.

6. A feeding device for processing plastic products according to claim 1, characterized in that: The number of L-shaped legs (9) is 3-4, and a reinforcing plate (19) is provided between the inner sidewalls of the L-shaped legs (9).

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