Feeding equipment for plastic processing

Abstract

The utility model relates to the technical field of plastic processing feeding, in particular to plastic processing feeding equipment which comprises a rack, a gravity detection assembly, a material guide pipe, a rotating shaft, a stirring assembly, a driving assembly and a sealing cover assembly. The rack is connected with a storage barrel, a partition plate is arranged in the storage barrel, and a feeding pipe and a discharging pipe are arranged on the storage barrel. The gravity detection assembly is arranged in the storage barrel and connected with the partition plate. The material guide pipe is connected with the partition plate and provided with a through hole A and a through hole B. The top end of the rotating shaft is rotatably connected with the barrel cover, the rotating shaft is coaxially connected with a spiral plate, and the spiral plate is located in the material guide pipe and slidably connected with the inner wall of the material guide pipe. The stirring component is connected with the rotating shaft. The driving assembly is connected with the storage barrel and drives the rotating shaft to rotate. The sealing cover assembly is connected with the material storage barrel, and the sealing cover assembly seals the opening in the bottom of the material guide pipe in the state that raw materials are added into the upper cavity. According to the utility model, the two chambers are arranged, so that the stable operation of the equipment is kept when new raw materials to be mixed are added.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing material supply technology, and in particular to a plastic processing material supply device. Background Technology

[0002] When plastics are being refined, raw plastic granules and additives need to be added to a storage tank and stirred. The mixed plastic is then extruded through an extruder to form the final product. The internal structure of existing storage tanks is relatively simple.

[0003] The technical solution disclosed in Chinese Patent No. CN216914766U involves setting two feeding ports on the top cover plate of the feeding hopper, allowing different plastic raw materials to be added to the hopper simultaneously. A drive mechanism drives a rotating shaft to rotate, which in turn drives the stirring blades to rotate synchronously, achieving mixing of the plastic raw materials and ensuring thorough and uniform mixing. By incorporating a hot air fan and air inlet pipe, hot air can be delivered to the feeding hopper to preheat the plastic raw materials inside, ensuring they are at a certain temperature before entering the heated extrusion mechanism, thus improving the heating effect.

[0004] However, the device still has shortcomings: it needs to be shut down to remove the residual mixed materials before the materials to be mixed can be added again, which affects the operating efficiency and processing efficiency of the equipment. In addition, the stirring structure of the device is relatively simple, resulting in low mixing efficiency of the materials. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a plastic processing feeding device.

[0006] The technical solution of this utility model is as follows: a plastic processing feeding device, including a frame, a storage tank connected to the frame, a partition with a central hole inside the storage tank to divide the inner cavity of the storage tank into an upper chamber and a lower chamber, and a feeding pipe communicating with the upper chamber and a discharging pipe communicating with the lower chamber are provided on the storage tank.

[0007] A gravity detection component is installed inside the storage tank and connected to a partition to measure the remaining amount of raw material in the upper chamber.

[0008] A feed tube is connected to and passes through a partition. The feed tube has through holes A and B. Through hole A is located below through hole B, and the lower edge of through hole A is flush with the upper edge of the central hole of the partition.

[0009] A rotating shaft is inserted into and rotatably connected to the feed guide tube. The top of the rotating shaft is rotatably connected to the lid of the storage tank. The rotating shaft is coaxially connected to a spiral plate, which is located inside the feed guide tube and slidably connected to its inner wall.

[0010] A stirring assembly is connected to a rotating shaft.

[0011] The drive assembly is connected to the storage tank and drives the rotating shaft to rotate.

[0012] And a capping assembly, which is connected to the storage tank. The capping assembly seals the opening at the bottom of the feed tube when raw materials are added to the upper chamber.

[0013] Preferably, the gravity detection assembly includes a support ring, a gravimeter, and a controller. The support ring is located below the partition and connected to the inner wall of the storage tank. The body of the gravimeter is connected to the support ring, the detection end of the gravimeter is in contact with the lower surface of the partition, and the gravimeter is electrically connected to the controller.

[0014] Preferably, the stirring assembly includes a stirring paddle. A fixed rod is provided on the rotating shaft, and a stirring shaft is rotatably connected to the fixed rod and parallel to the rotating shaft. The stirring paddle is connected to the stirring shaft.

[0015] Preferably, a ring is fitted on the feed tube and rotates coaxially with it. The ring is connected to a scraper. The lower end of the stirring shaft is connected to the scraper. The scraper is slidably connected to the upper surface of the partition and the arc surface of the feed tube.

[0016] Preferably, a gear is coaxially connected to the top of the stirring shaft, and an external gear ring coaxial with the rotating shaft is provided at the bottom of the bucket cover, with the gear meshing with the external gear ring.

[0017] Preferably, the sealing assembly includes a sealing cap and a cylinder. A cylindrical channel is provided inside the rotating shaft, and a slide rod is rotatably connected to the inner wall of the cylindrical channel. The lower end of the slide rod extends out of the guide tube and connects to the sealing cap, while the top end of the slide rod extends out of the lid of the storage hopper. A bracket is provided on the lid, and a movable plate is slidably connected to the bracket. The top end of the slide rod is connected to the movable plate. The body of the cylinder is connected to the bracket, and the push rod of the cylinder is connected to the movable plate.

[0018] Preferably, the drive assembly includes a motor, a drive shaft, a drive wheel, and a driven wheel. The drive shaft is rotatably connected to the bracket, the drive wheel is coaxially connected to the drive shaft, and the driven wheel is coaxially connected to the shaft, with the drive wheel meshing with the driven wheel. The motor body is connected to the bracket, and the motor output end is connected to the drive shaft.

[0019] Preferably, a heater and a blower are installed on the frame, the input end of the blower is connected to the output end of the heater, the output end of the blower is connected to the air outlet pipe, and the other end of the air outlet pipe is connected to the upper chamber.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] By installing a partition and a gravity detection component at the bottom of the partition, the remaining amount of plastic mixture in the upper chamber can be accurately determined through the value detected by the gravity detection component. This facilitates timely operation of the equipment and the addition of new raw materials to be mixed in the upper chamber. The coordinated structure of the guide pipe, rotating shaft, and spiral plate allows the stirring component on the rotating shaft to thoroughly stir the raw materials in the upper chamber, while the spiral plate continuously lifts the bottom layer of raw materials upwards, promoting rapid mixing between the upper and lower layers. A sealing component opens the bottom opening of the guide pipe when the remaining material in the upper chamber is low, allowing the remaining mixture to flow into the lower chamber. The sealing component then closes the lower outlet of the guide pipe. At this point, raw materials can be added to the upper chamber. While the upper chamber is stirring and mixing the raw materials, the material in the lower chamber continues to be discharged through the outlet pipe, ensuring stable operation of the equipment. The structure of a blower and heater facilitates preheating of the raw materials in the storage tank. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the storage tank;

[0024] Figure 3 This is a schematic diagram of the connection structure of the various components on the feed tube;

[0025] Figure 4 This is a schematic diagram of the connection structure of the various components on the bucket lid.

[0026] Reference numerals: 1. Frame; 2. Storage tank; 201. Upper chamber; 202. Lower chamber; 3. Support ring; 4. Gravity gauge; 5. Partition; 6. Feeding pipe; 7. Discharge pipe; 8. Guide pipe; 81. Through hole A; 82. Through hole B; 9. Rotating shaft; 10. Spiral plate; 11. Fixed rod; 12. Stirring shaft; 13. Stirring paddle; 14. Scraper; 15. Ring; 16. Gear; 17. External gear ring; 18. Bracket; 19. Drive assembly; 20. Slide rod; 21. Sealing cover; 22. Cylinder; 23. Heater; 24. Blower; 25. Air outlet pipe. Detailed Implementation

[0027] Example 1

[0028] like Figures 1-4As shown, this utility model proposes a plastic processing feeding device, including a frame 1, a gravity detection component, a guide pipe 8, a rotating shaft 9, a stirring component, a drive component 19, and a sealing component. The frame 1 is connected to a storage tank 2. A partition 5 with a central hole is provided inside the storage tank 2 to divide the inner cavity of the storage tank 2 into an upper chamber 201 and a lower chamber 202. A feeding pipe 6 communicating with the upper chamber 201 and a discharge pipe 7 communicating with the lower chamber 202 are provided on the storage tank 2. The gravity detection component includes a support ring 3, a gravity meter 4, and a controller. The support ring 3 is located below the partition 5 and connected to the inner wall of the storage tank 2. The body of the gravity meter 4 is connected to the support ring 3, and the detection end of the gravity meter 4 is in contact with the lower surface of the partition 5. The gravity meter 4 is electrically connected to the controller to measure the remaining amount of raw material in the upper chamber 201 through the gravity detection component. The feed pipe 8 is connected to and passes through the partition plate 5. The feed pipe 8 has through holes A81 and B82, with through hole A81 located below through hole B82 and its lower edge flush with the upper edge of the central hole in the partition plate 5. A rotating shaft 9 is inserted into and rotatably connected to the feed pipe 8. The top end of the rotating shaft 9 is rotatably connected to the lid of the storage tank 2. The rotating shaft 9 is coaxially connected to a spiral plate 10, which is located inside the feed pipe 8 and slidably connected to its inner wall. The stirring assembly includes a stirring paddle 13. A fixed rod 11 is mounted on the rotating shaft 9, and a stirring shaft 12, rotatably connected to and parallel to the rotating shaft 9, is mounted on the fixed rod 11. The stirring paddle 13 is connected to the stirring shaft 12. A circular ring 15, coaxially rotating with the feed pipe 8, is fitted onto the feed pipe 8. The circular ring 15 is connected to a scraper 14, and the lower end of the stirring shaft 12 is connected to the scraper 14. The scraper 14 is slidably connected to the upper surface of the partition plate 5 and the arc surface of the feed pipe 8. A gear 16 is coaxially connected to the top of the stirring shaft 12, and an external gear ring 17 coaxial with the rotating shaft 9 is provided at the bottom of the bucket lid. The gear 16 meshes with the external gear ring 17. The drive assembly 19 includes a motor, a transmission shaft, a drive wheel, and a driven wheel. The transmission shaft is rotatably connected to the bracket 18, the drive wheel is coaxially connected to the transmission shaft, and the driven wheel is coaxially connected to the rotating shaft 9. The drive wheel and the driven wheel mesh. The motor body is connected to the bracket 18, the output end of the motor is connected to the transmission shaft, and the motor is electrically connected to the controller. The sealing assembly includes a sealing cover 21 and a cylinder 22. A cylindrical channel is provided inside the rotating shaft 9, and a slide rod 20 is rotatably connected to its inner wall inside the cylindrical channel. The lower end of the slide rod 20 extends out of the guide pipe 8 and is connected to the sealing cover 21, and the top end of the slide rod 20 extends out of the bucket lid of the storage bucket 2. A bracket 18 is provided on the bucket lid, and a movable plate is slidably connected to the bracket 18. The top end of the slide rod 20 is connected to the movable plate. The body of cylinder 22 is connected to bracket 18, the push rod of cylinder 22 is connected to movable plate, and the electric control switch of cylinder 22 is electrically connected to controller. When raw materials are added to the upward chamber 201, the sealing assembly closes the opening at the bottom of the guide tube 8.

[0029] In this embodiment, cylinder 22 is first activated, and the cylinder 22 pulls up the movable plate, slide rod 20 and sealing cover 21 to close the lower opening of the feed pipe 8. Then, the raw materials to be mixed are added into the upper chamber 201 according to the ratio along the feed pipe 6. Then, the motor is activated, and the motor drives the rotating shaft 9 to rotate in the forward direction, which in turn drives the spiral plate 10 to rotate in the forward direction. The spiral plate 10 lifts the bottom raw materials that enter the feed pipe 8 along the through hole A81 and discharges them outward from the through hole B82, improving the mixing efficiency of the bottom raw materials and the upper raw materials. The rotation of the rotating shaft 9 drives the fixed rod 11 to rotate, which in turn drives the stirring shaft 12, stirring paddle 13 and scraper 14 to rotate synchronously. The scraper 14 flips the bottom raw materials up appropriately. Since the stirring shaft 12 revolves around the rotating shaft 9, the gear 16 rolls along the outer circumference of the outer gear ring 17, causing the stirring shaft 12 to rotate, further improving the mixing efficiency of the raw materials.

[0030] Example 2

[0031] like Figure 1 As shown, the plastic processing feeding device proposed in this utility model, compared with the first embodiment, has a heater 23 and a blower 24 installed on the frame 1. The input end of the blower 24 is connected to the output end of the heater 23, and the output end of the blower 24 is connected to the air outlet pipe 25. The other end of the air outlet pipe 25 is connected to the upper chamber 201, and the air outlet of the air outlet pipe 25 is close to the upper edge of the partition 5.

[0032] In this embodiment, the blower 24 preheats the heater 23 before it starts working. When the blower 24 starts working, the outside air enters the heater 23 and is heated. The hot air is blown into the upper chamber 201 by the blower 23 along the air outlet 25. On the one hand, the hot air flowing from bottom to top can drive the plastic particles to surge, improving their mixing efficiency. On the other hand, the hot air can also preheat the plastic particles, improving the efficiency of the plastic in subsequent heating and processing.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A plastic processing feeding device, characterized in that, include The frame (1) is connected to the storage tank (2). The storage tank (2) is provided with a partition (5) with a central hole, so that the inner cavity of the storage tank (2) is divided into an upper chamber (201) and a lower chamber (202) by the partition (5). The storage tank (2) is provided with a feeding pipe (6) communicating with the upper chamber (201) and a discharge pipe (7) communicating with the lower chamber (202). Gravity detection component, which is installed in the storage tank (2) and connected to the partition (5) to measure the remaining amount of raw material in the upper chamber (201); The guide pipe (8) is connected to and passes through the partition plate (5). The guide pipe (8) is provided with through hole A (81) and through hole B (82). Through hole A (81) is located below through hole B (82), and the lower edge of through hole A (81) is flush with the upper edge of the center hole of the partition plate (5). A rotating shaft (9) is inserted into the guide tube (8) and rotated therewith. The top of the rotating shaft (9) is rotated to the lid of the storage tank (2). The rotating shaft (9) is coaxially connected to the spiral plate (10). The spiral plate (10) is located inside the guide tube (8) and is slidably connected to its inner wall. A stirring assembly is connected to a rotating shaft (9); Drive assembly (19) is connected to storage tank (2) and drives rotating shaft (9) to rotate; And a capping assembly, which is connected to the storage tank (2). The capping assembly closes the opening at the bottom of the feed pipe (8) when raw materials are added into the upward chamber (201).

2. The plastic processing feeding equipment according to claim 1, characterized in that, The gravity detection assembly includes a support ring (3), a gravimeter (4), and a controller. The support ring (3) is located below the partition (5) and connected to the inner wall of the storage tank (2). The body of the gravimeter (4) is connected to the support ring (3). The detection end of the gravimeter (4) is in contact with the lower surface of the partition (5). The gravimeter (4) is electrically connected to the controller.

3. The plastic processing feeding equipment according to claim 1, characterized in that, The stirring assembly includes a stirring paddle (13); a fixed rod (11) is provided on the rotating shaft (9), and a stirring shaft (12) is provided on the fixed rod (11) and rotatably connected to it and parallel to the rotating shaft (9). The stirring paddle (13) is connected to the stirring shaft (12).

4. The plastic processing feeding equipment according to claim 3, characterized in that, A ring (15) is fitted on the feed tube (8) and rotates coaxially with it. The ring (15) is connected to the scraper (14). The lower end of the stirring shaft (12) is connected to the scraper (14). The scraper (14) is slidably connected to the upper surface of the partition (5) and the arc surface of the feed tube (8).

5. A plastic processing feeding device according to claim 3, characterized in that, The top of the stirring shaft (12) is coaxially connected to the gear (16), and the bottom of the bucket lid is provided with an external gear ring (17) coaxial with the rotating shaft (9). The gear (16) meshes with the external gear ring (17).

6. The plastic processing feeding equipment according to claim 1, characterized in that, The sealing assembly includes a sealing cap (21) and a cylinder (22); a cylindrical channel is provided inside the rotating shaft (9), and a slide rod (20) is provided inside the cylindrical channel and rotatably connected to its inner wall. The lower end of the slide rod (20) extends out of the guide pipe (8) and is connected to the sealing cap (21). The top end of the slide rod (20) extends out of the lid of the storage bucket (2). A bracket (18) is provided on the lid. The bracket (18) is slidably connected to the movable plate. The top end of the slide rod (20) is connected to the movable plate. The body of the cylinder (22) is connected to the bracket (18), and the push rod of the cylinder (22) is connected to the movable plate.

7. A plastic processing feeding device according to claim 6, characterized in that, The drive assembly (19) includes a motor, a drive shaft, a drive wheel and a driven wheel; the drive shaft is rotatably connected to the bracket (18), the drive wheel is coaxially connected to the drive shaft, the driven wheel is coaxially connected to the rotating shaft (9), and the drive wheel meshes with the driven wheel; the motor body is connected to the bracket (18), and the output end of the motor is connected to the drive shaft.

8. The plastic processing feeding equipment according to claim 1, characterized in that, A heater (23) and a blower (24) are installed on the frame (1). The input end of the blower (24) is connected to the output end of the heater (23). The output end of the blower (24) is connected to the air outlet pipe (25). The other end of the air outlet pipe (25) is connected to the upper chamber (201).

Images