A plastic extruder feed device

Abstract

The utility model discloses a kind of plastic extruder feeding devices, specifically related to the technical field of plastic extruder, including feed hopper, the upper end of the feed hopper is fixedly provided with upper cover, the upper end of the upper cover is fixedly provided with protective cover, the upper cover top end is fixedly installed with driving motor in protective cover inside, the output shaft of the driving motor is fixedly connected with spiral conveying blade setting in the inside of feed hopper, the bottom of the upper cover is fixedly provided with guide rod, counterweight pressure ring is slidably arranged on the guide rod, the bottom of the counterweight pressure ring is fixedly provided with scraper ring. The utility model spiral conveying blade can assist the feeding of lower hopper, so that raw materials flow downward into plastic extruder, and the raw materials accumulated at lower hopper can be extruded by the downward pressure of counterweight pressure ring, thereby preventing the raw materials from being accumulated at lower hopper and causing blockage, the utility model does not need manual processing, thereby improving the processing efficiency of plastic extruder.

Description

Technical Field

[0001] This utility model relates to the field of plastic extruder technology, specifically a feeding device for a plastic extruder. Background Technology

[0002] Many surgical patients wear urinary bags to reduce difficulty in urinating due to postoperative mobility issues. Urinary bags facilitate urination, which is especially important for those with limited mobility. Most urinary bags are made of medical-grade PVC material through extrusion molding, requiring a plastic extruder for production.

[0003] Currently, there are some defects in the use of PVC material extruders during urine bag processing. For example, the feed inlet is prone to blockage during the feeding process, especially near the feed inlet of the plastic extruder, where a large amount of material will accumulate, causing poor feeding. At this time, the staff needs to manually clear the blockage, which results in low work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for a plastic extruder to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A feeding device for a plastic extruder includes a feeding hopper. A top cover is fixedly mounted on the upper end of the feeding hopper, and a protective cover is fixedly mounted on the upper end of the top cover. A drive motor is fixedly installed on the top of the top cover inside the protective cover. The output shaft of the drive motor is fixedly connected to a spiral conveying blade disposed inside the feeding hopper. A guide rod is fixedly mounted on the bottom end of the top cover, and a counterweight ring is slidably mounted on the guide rod. A scraper ring is fixedly mounted on the bottom end of the counterweight ring. A cavity is formed inside the lower side wall of the feeding hopper, and a heating plate is fixedly installed inside the cavity. A photoelectric sensor is embedded in the inner side wall of the bottom end of the feeding hopper.

[0006] In a preferred embodiment, the upper cover is provided with a feed port, and the photoelectric sensor and heating plate are connected to the control system of the plastic extruder. The feed port facilitates the addition of PVC raw materials, while the photoelectric sensor can detect the material conveying and the position of the counterweight ring.

[0007] In a preferred embodiment, pull ropes are provided on both sides of the upper end of the counterweight ring. The upper ends of the pull ropes pass through the side wall of the upper cover and are set on the winding wheel. The winding wheel is fixedly set on the rotating shaft. One end of the rotating shaft is fixedly connected to the output shaft of the winding motor. When the winding motor drives the winding wheel to rotate, it can pull the counterweight ring upward through the pull ropes. When the winding motor rotates in the opposite direction, the winding wheel disengages from the pull ropes, and the counterweight ring moves downward under the action of gravity, which can squeeze out the material below the feed hopper.

[0008] In a preferred embodiment, the take-up motor is fixedly mounted on the inner wall of the protective cover, and the end of the rotating shaft away from the take-up motor is rotatably mounted on the inner wall of the protective cover. The rotatable mounting of the rotating shaft on the inner wall of the protective cover makes the take-up wheel more stable when rotating.

[0009] In a preferred embodiment, the counterweight pressure ring is disposed outside the spiral conveyor blades, and the scraper ring matches the lower inner wall of the feed hopper. When the counterweight pressure ring descends, the bottom end of the scraper ring contacts the lower inner wall of the feed hopper, which can scrape off the material adhering to the lower inner wall of the feed hopper.

[0010] In a preferred embodiment, the scraper ring is conical, the winding motor and the rotating shaft are both located above the drive motor, and the bottom end of the feed hopper is connected to the feeding cylinder of the plastic extruder. The conical design of the scraper ring can prevent a large amount of raw material from remaining on the scraper ring after the counterweight pressure ring rises.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up a structure including a spiral conveyor blade, a counterweight pressure ring, a scraper ring, a pull rope, a winding wheel, a winding motor, and a guide rod, allows the spiral conveyor blade to assist the feeding at the hopper, enabling the raw material to flow downwards into the plastic extruder. The downward pressure of the counterweight pressure ring can squeeze out the raw material accumulated at the hopper, thereby preventing the material from accumulating at the hopper and causing blockage. This utility model does not require manual handling, thus improving the processing efficiency of the plastic extruder.

[0012] 2. This utility model is equipped with a counterweight pressure ring, a scraper ring, a photoelectric sensor, a heating plate, etc. When the counterweight pressure ring is pressed down, the scraper ring can scrape off the raw materials adhering to the inner wall of the lower end of the feed hopper, thus cleaning the inner wall of the feed hopper. The heating plate can soften the raw materials adhering to the inner wall of the feed hopper, making it easier to scrape off the adhering raw materials using the scraper ring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the connection structure of the top cover of this utility model; Figure 4 This is a schematic diagram of the scraper ring of this utility model.

[0014] The following are labeled in the diagram: 1. Feed hopper; 2. Top cover; 3. Protective cover; 4. Drive motor; 5. Spiral conveyor blade; 6. Guide rod; 7. Counterweight pressure ring; 8. Scraper ring; 9. Cavity; 10. Heating plate; 11. Photoelectric sensor; 12. Feed inlet; 13. Pull rope; 14. Rewinding wheel; 15. Rotating shaft; 16. Rewinding motor. Detailed Implementation

[0015] 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.

[0016] Example: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a feeding device for a plastic extruder, the technical solution of which is as follows: A feeding device for a plastic extruder includes a feeding hopper 1. A top cover 2 is fixedly installed at the upper end of the feeding hopper 1. A protective cover 3 is fixedly installed at the upper end of the top cover 2. A drive motor 4 is fixedly installed inside the protective cover 3 at the top of the top cover 2. The output shaft of the drive motor 4 is fixedly connected to a spiral conveying blade 5 installed inside the feeding hopper 1. A guide rod 6 is fixedly installed at the bottom end of the top cover 2. A counterweight ring 7 is slidably installed on the guide rod 6. A scraper ring 8 is fixedly installed at the bottom end of the counterweight ring 7. A cavity 9 is opened inside the lower side wall of the feeding hopper 1. A heating plate 10 is fixedly installed inside the cavity 9. A photoelectric sensor 11 is embedded in the inner side wall of the bottom end of the feeding hopper 1.

[0017] In a preferred embodiment, the upper cover 1 is provided with a feed inlet 12. The photoelectric sensor 11 and the heating plate 10 are connected to the control system of the plastic extruder. The feed inlet 12 facilitates the addition of raw materials. A sealing plate can be set at the feed inlet 12. After the raw materials are added, the sealing plate is covered. The control system of the plastic extruder controls the operation of the feeding device. If the photoelectric sensor 11 does not detect any material during the feeding process, it indicates that the raw materials in the feed hopper 1 are used up or that the outlet of the feed hopper 1 is blocked. The staff can deal with it in time.

[0018] In a preferred embodiment, pull ropes 13 are provided on both sides of the upper end of the counterweight pressure ring 7. The upper ends of the pull ropes 13 pass through the side wall of the upper cover 2 and are set on the winding wheel 14. The winding wheel 14 is fixedly set on the rotating shaft 15. One end of the rotating shaft 15 is fixedly connected to the output shaft of the winding motor 16. When the winding motor 16 is running, it can drive the rotating shaft 15 to rotate. The rotating shaft 15 drives the winding wheel 14 to rotate. The winding wheel 14 winds up or unwinds the pull ropes 13, so that the counterweight pressure ring 7 moves up and down along the guide rod 6.

[0019] In a preferred embodiment, the winding motor 16 is fixedly mounted on the inner wall of the protective cover 3, and the end of the rotating shaft 15 away from the winding motor 16 is rotatably mounted on the inner wall of the protective cover 3.

[0020] In a preferred embodiment, the counterweight ring 7 is disposed outside the spiral conveyor blade 5, and the scraper ring 8 matches the lower inner wall of the feed hopper 1. When the scraper ring 8 moves downward, the lower outer wall of the scraper ring 8 contacts the lower inner wall of the feed hopper 1, and the scraper ring 8 can scrape off the raw material adhering to the lower inner wall of the feed hopper 1.

[0021] In a preferred embodiment, the scraper ring 8 is tapered, the winding motor 16 and the rotating shaft 15 are both located above the drive motor 4, and the bottom end of the feed hopper 1 is connected to the feeding cylinder of the plastic extruder.

[0022] The working principle of this utility model: During use, the raw materials used in the production of urine bags are introduced into the feeding hopper 1 through the feeding port 12. A regulating valve can be installed at the bottom of the feeding hopper 1 to adjust the feeding speed. During feeding, the drive motor 4 is turned on, driving the spiral conveyor blade 5 to rotate, thus assisting in the conveying of raw materials. A photoelectric sensor 11 monitors the material conveying at the bottom of the feeding hopper 1. If the photoelectric sensor 11 cannot detect the material conveying, it indicates that the raw material in the feeding hopper 1 is used up, reminding people to replenish the material in time. If there is still material in the feeding hopper 1... If there is raw material, it indicates that there is a blockage at the feed hopper 1. People turn on the winding motor 16, which drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the winding wheel 14 to loosen the pull rope. The counterweight pressure ring 7 loses the tension of the pull rope 13 and moves downward along the guide rod 6 under the action of gravity. When the counterweight pressure ring 7 descends to a certain extent, the scraper ring 8 at the bottom contacts the inner wall of the lower end of the feed hopper 1. During the descent, the scraper ring 8 can scrape off the raw material adhering to the inner wall of the feed hopper 1 and squeeze out the raw material blocked at the discharge end of the feed hopper 1. If the counterweight ring 7 cannot descend further due to the adhered material during its descent, the heating plate 10 is turned on. The heating plate 10 heats the side wall of the feed hopper 1, softening the material adhering to the inside of the side wall, thus facilitating its scraping off. When the counterweight ring 7 descends to the bottom, the winding motor 16 rotates in the opposite direction, and the winding wheel 14 winds up the pull rope 13. The pull rope 13 drives the counterweight ring 7 to move upward and reset, thus scraping off the material adhering to the inner side wall of the feed hopper 1. Furthermore, the use of the spiral conveyor blade 5 and the counterweight ring 7 to assist in the feeding of the feed hopper 1 can prevent blockage at the feed hopper 1.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A feeding device for a plastic extruder, comprising a feeding hopper (1), wherein a top cover (2) is fixedly provided at the upper end of the feeding hopper (1), characterized in that: A protective cover (3) is fixedly installed at the upper end of the cover (2). A drive motor (4) is fixedly installed at the top of the cover (2) inside the protective cover (3). The output shaft of the drive motor (4) is fixedly connected to a spiral conveying blade (5) inside the feed hopper (1). A guide rod (6) is fixedly installed at the bottom end of the cover (2). A counterweight ring (7) is slidably installed on the guide rod (6). A scraper ring (8) is fixedly installed at the bottom end of the counterweight ring (7). A cavity (9) is opened inside the lower side wall of the feed hopper (1). A heating plate (10) is fixedly installed inside the cavity (9). A photoelectric sensor (11) is embedded in the inner side wall of the bottom end of the feed hopper (1).

2. The feeding device for a plastic extruder according to claim 1, characterized in that: The upper cover (2) is provided with a feed port (12), and the photoelectric sensor (11) and heating plate (10) are connected to the control system of the plastic extruder.

3. The feeding device for a plastic extruder according to claim 1, characterized in that: The upper ends of the counterweight ring (7) are provided with pull ropes (13) on both sides. The upper ends of the pull ropes (13) pass through the side wall of the upper cover (2) and are set on the winding wheel (14). The winding wheel (14) is fixedly set on the rotating shaft (15). One end of the rotating shaft (15) is fixedly connected to the output shaft of the winding motor (16).

4. The feeding device for a plastic extruder according to claim 3, characterized in that: The winding motor (16) is fixedly installed on the inner wall of the protective cover (3), and the end of the rotating shaft (15) away from the winding motor (16) is rotatably set on the inner wall of the protective cover (3).

5. A feeding device for a plastic extruder according to claim 1, characterized in that: The counterweight ring (7) is located outside the spiral conveyor blade (5), and the scraper ring (8) matches the lower inner wall of the feed hopper (1).

6. A feeding device for a plastic extruder according to claim 3, characterized in that: The scraper ring (8) is tapered, the winding motor (16) and the rotating shaft (15) are both located above the drive motor (4), and the bottom end of the feed hopper (1) is connected to the feeding cylinder of the plastic extruder.

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