Continuous cleaning scraper conveyor for conveying polyvinyl chloride particles

Abstract

The utility model relates to the technical field of polyvinyl chloride production, and discloses a continuous cleaning scraper conveyor for polyvinyl chloride particle conveying, which comprises a bottom plate and a conveying groove, the top of the bottom plate is fixedly connected with two vertical plates, the interiors of the two vertical plates are fixedly connected with sliding cross rods, the sliding cross rods are sleeved with first springs, and the first springs are connected with the conveying groove. And a vibration frame is slidably connected to the exteriors of the two sliding transverse rods, two sliding vertical rods are fixedly connected to the interior of the vibration frame, a vibration plate is slidably connected to the exteriors of the sliding vertical rods, the upper end and the lower end of the vibration plate are each fixedly connected with two second springs, and a double-end motor is fixedly connected to the interior of the vibration plate. According to the utility model, the double-head motor is started to drive the two eccentric wheels to rotate at a high speed, the top conveying groove is driven to vibrate as a whole, materials in a gap are vibrated out, and then the materials are scraped and cleaned by the scraper, so that the waste of the materials is avoided, and the possibility of faults caused by material accumulation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of polyvinyl chloride production technology, and in particular to a scraper conveyor for continuous cleaning of polyvinyl chloride granules. Background Technology

[0002] Polyvinyl chloride (PVC) plastic granules are granular substances formed from polyvinyl chloride (PVC) resin through processing. The granules are typically regular in shape, mostly approximating spheres or cylinders. Granule size varies depending on the production process and application, generally around a few millimeters in diameter. PVC plastic granules are a primary raw material for manufacturing various pipes, producing door and window profiles, architectural decorative profiles, and injection-molded products. The relatively regular shape of PVC plastic granules allows for good flowability in the feed trough, facilitating scraper conveying. The relatively low friction between granules allows for smooth movement in the feed trough under the push of the scraper. Furthermore, scraper conveyors offer high conveying capacity, continuous conveying capabilities, and the ability to adapt to inclined conveying at certain angles, providing a convenient method for transporting PVC plastics.

[0003] Existing scraper conveyors include scrapers and chains. The scrapers are typically mounted on the chain, which meshes with sprockets. When the motor starts, power is transmitted to the sprockets via a transmission device, causing the sprockets to rotate. This, in turn, drives the chain in a cyclical motion, and the scrapers move along with the chain, propelling the polyvinyl chloride (PVC) granules forward within the transport trough, thus achieving the conveying of the PVC granules.

[0004] However, in the existing technology, since the scraper needs to move inside the transport trough, gaps need to be left on both sides to prevent scraper wear or jamming. However, the gaps left can cause PVC particles to remain during transportation, resulting in material accumulation and waste. There is also the possibility that the accumulation of plastic particles may cause equipment failure. Therefore, a scraper machine for continuous cleaning of PVC particles is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a scraper conveyor for continuous cleaning of polyvinyl chloride granules, aiming to improve the problem in the prior art where residual plastic granules in the conveying trough gaps cause blockages that are difficult to clean.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A scraper conveyor for continuous cleaning of polyvinyl chloride (PVC) granules includes a base plate and a transport trough. Two vertical plates are fixedly connected to the top of the base plate. Sliding crossbars are fixedly connected inside each of the two vertical plates. Springs are sleeved on the outside of each sliding crossbar. A vibrating frame is slidably connected to the outside of the two sliding crossbars. Two sliding vertical rods are fixedly connected inside the vibrating frame. A vibrating plate is slidably connected to the outside of each sliding vertical rod. Two springs are fixedly connected to both the upper and lower ends of the vibrating plate. A dual-head motor is fixedly connected inside the vibrating plate. Eccentric wheels are fixedly connected to the two drive ends of the dual-head motor. Two support plates are fixedly connected to the top of the vibrating plate. The tops of the two support plates are fixedly connected to the bottom of the transport trough. A transport assembly for transporting PVC granules is installed inside the transport trough.

[0008] As a further description of the above technical solution:

[0009] One end of the first spring is fixedly connected to the outside of the vibration frame, the other end of the first spring is fixedly connected to the outside of the upright plate, and the outside of the second spring is fixedly connected to the inside of the vibration frame.

[0010] As a further description of the above technical solution:

[0011] The transport assembly includes two sprockets, which are rotatably connected to the outside of the transport trough. A chain is meshed with the outside of the sprockets, and multiple mounting seats are fixedly connected to the outside of the chain. The mounting seats are equipped with disassembly components for disassembly and replacement.

[0012] As a further description of the above technical solution:

[0013] A motor is fixedly connected to the outside of the transport trough, and the drive end of the motor is fixedly connected inside one of the sprockets.

[0014] As a further description of the above technical solution:

[0015] The disassembly assembly includes a sliding rod, which is slidably connected to the outside of the mounting base. A sliding plate is fixedly connected to the outside of the sliding rod, and multiple retaining strips are fixedly connected to one side of the sliding plate.

[0016] As a further description of the above technical solution:

[0017] One end of the sliding rod is fixedly connected to a pressing plate, and the pressing plate is slidably connected to the inside of the mounting base.

[0018] As a further description of the above technical solution:

[0019] The mounting base has a scraper slidably connected inside, and the exterior of the plurality of locking strips engages with the interior of the scraper.

[0020] As a further description of the above technical solution:

[0021] A spring three is sleeved on the outside of the sliding rod. One end of the spring three is fixedly connected to the outside of the sliding plate, and the other end of the spring three is fixedly connected to the inside of the mounting base.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the dual-head motor drives two eccentric wheels to rotate at high speed, thereby causing the vibrating plate to vibrate up and down. Sliding outside the sliding vertical rod, the second spring generates a reaction force to push the vibrating plate back to its original position. At the same time, the vibrating frame slides outside the sliding horizontal rod, and the reaction force of the first spring pushes the vibrating frame back to its original position. Finally, the entire conveying trough at the top vibrates, vibrating out the material inside the gaps, which is then scraped away by the scraper. This effectively solves the problem of particle residue. The overall vibration of the vibrating plate, vibrating frame, and conveying trough can fully vibrate out the particles in the gaps, avoiding material waste and reducing the potential equipment failure caused by material accumulation in the gaps, thus ensuring the continuous and stable operation of the equipment.

[0024] 2. In this utility model, pressing the button causes the sliding rod to slide backward, thereby causing multiple clips on the sliding plate to separate from the scraper, allowing the scraper to slide out from the inside of the mounting base. After replacement, the reaction force of the spring pushes the sliding plate to slide back to its original position, causing the clips to re-engage inside the scraper, thus completing the fixation. This facilitates quick scraper replacement by staff and improves maintenance efficiency. Attached Figure Description

[0025] Figure 1 This is a perspective view of a scraper conveyor for continuous cleaning of polyvinyl chloride granules proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the vibrating frame structure of a scraper conveyor for continuous cleaning of polyvinyl chloride granules proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the conveying trough structure of a scraper conveyor for continuous cleaning of polyvinyl chloride granules proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the mounting base structure of a scraper conveyor for continuous cleaning of polyvinyl chloride granules proposed in this utility model.

[0029] Figure 5This is a schematic diagram of the scraper structure of a scraper conveyor for continuous cleaning of polyvinyl chloride granules proposed in this utility model.

[0030] Legend:

[0031] 1. Base plate; 2. Vertical plate; 3. Sliding crossbar; 4. Spring 1; 5. Vibration frame; 6. Sliding vertical bar; 7. Vibration plate; 8. Spring 2; 9. Double-headed motor; 10. Eccentric wheel; 11. Support plate; 12. Transport trough; 13. Sprocket; 14. Chain; 15. Mounting base; 16. Motor; 17. Scraper; 18. Sliding rod; 19. Sliding plate; 20. Locking strip; 21. Press plate; 22. Spring 3. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 2 This utility model provides an embodiment of a scraper conveyor for continuous cleaning of polyvinyl chloride (PVC) granules, comprising a base plate 1 and a transport trough 12. The base plate 1 is made of high-strength carbon steel and is carefully forged to provide support for the subsequent transport structure. Two upright plates 2 are fixedly connected to the top of the base plate 1. The upright plates 2 are elongated rectangular plates that provide limits and guidance for the subsequent structure to slide and vibrate laterally. Sliding crossbars 3 are fixedly connected inside the two upright plates 2. The sliding crossbars 3 are horizontally placed round rods that provide guidance for the lateral sliding of the subsequent structure and limit the movement of the subsequent elastic structure to prevent deformation. A spring 4 is sleeved on the outside of the sliding crossbars 3. The spring 4 is used to provide a reaction force to push the subsequent structure back to its original position when it slides. This process is repeated to form horizontal vibration. A vibration frame 5 is slidably connected to the outside of the two sliding crossbars 3. The vibration frame 5 is U-shaped and also has a vertical vibration component inside.

[0034] Reference Figure 2The vibrating frame 5 has two cylindrical sliding vertical rods 6 fixedly connected internally to provide guidance for vertical vibration. A vibrating plate 7, which is flat, is slidably connected externally to the sliding vertical rods 6 to facilitate sliding of the vertical rods 6. Two springs 8 are fixedly connected to both the upper and lower ends of the vibrating plate 7 to provide buffering and reaction forces, reducing vibration potential energy and wear on the equipment during vertical vibration. A dual-head motor 9 is fixedly connected internally to the vibrating plate 7. The dual-head motor 9 has two drive sources, simultaneously driving two subsequent structures to rotate, achieving efficient vibration. Eccentric wheels 10 are fixedly connected to the two drive ends of the dual-head motor 9. The rotation causes the direction and magnitude of the force to change continuously, resulting in uneven force movement and vibration. Two support plates 11 are fixedly connected to the top of the vibrating plate 7. The top of the two support plates 11 is fixedly connected to the bottom of the transport trough 12. The vibration force is transmitted to the transport trough 12 through the support plates 11. The transport trough 12 is equipped with a transport assembly for transporting polyvinyl chloride particles. One end of spring 4 is fixedly connected to the outside of the vibrating frame 5, and the other end of spring 4 is fixedly connected to the outside of the upright plate 2 to provide a reaction force to push the vibrating frame 5 to slide back to its original position when it slides horizontally. The outside of spring 8 is fixedly connected to the inside of the vibrating frame 5, thereby providing buffering force and reaction force for the vibrating plate 7.

[0035] Reference Figure 3 The transport component includes two sprockets 13, which are externally rotatably connected to the inside of the transport trough 12. They have a standard circular disc structure, and the wheel body is made of high-strength alloy steel, undergoing a series of precision heat treatment processes such as forging, quenching, and tempering to ensure stable and efficient power transmission. A chain 14 is externally engaged with the sprockets 13. The pitch of the chain 14 is precisely calculated to perfectly match the tooth spacing of the sprockets 13, ensuring a tight and seamless meshing process and continuous and efficient power transmission, driving the subsequent structure in a cyclical motion to achieve the transport effect. The external fixed connection of 4 has multiple mounting bases 15. The mounting base 15 is rectangular in shape and has a slot for inserting and fixing subsequent structures inside. The mounting base 15 is equipped with a disassembly component for disassembly and replacement. The external fixed connection of the transport trough 12 is a motor 16. The drive end of the motor 16 is fixedly connected to the inside of one of the sprockets 13. When the motor 16 is powered on and started, the internal rotor rotates at high speed, instantly converting electrical energy into strong mechanical energy, which is transmitted to the sprocket 13 through the drive shaft, driving the sprocket 13 to rotate at a uniform speed and stably, thereby driving the chain 14 to circulate.

[0036] Reference Figures 4 to 5The disassembly assembly includes a sliding rod 18, which is externally slidably connected to the inside of the mounting base 15. The surface of the sliding rod 18 is finely polished to ensure smooth sliding, thereby driving the subsequent structure to adjust and engage, facilitating disassembly. A sliding plate 19 is fixedly connected to the outside of the sliding rod 18. The sliding plate 19 is a rectangular plate used to connect multiple subsequent structures to achieve synchronous movement. Multiple locking strips 20 are fixedly connected to one side of the sliding plate 19. The locking strips 20 are used to engage inside the scraper 17 to complete the fixed installation of the scraper 17. A pressing plate 21 is fixedly connected to one end of the sliding rod 18. The pressing plate 21 is externally slidably connected to the inside of the mounting base 15. The pressing plate 21 perfectly fits the natural curvature of the human hand, making it easy to apply force and providing the operator with a convenient point of force. The mounting base 15 has a slidably connected scraper 17 inside. Multiple locking strips 20 engage with the inside of the scraper 17 on the outside, thus fixing the scraper 17 and enabling quick installation. A spring 22 is sleeved on the outside of the sliding rod 18. One end of the spring 22 is fixedly connected to the outside of the sliding plate 19, and the other end is fixedly connected to the inside of the mounting base 15. During disassembly, the spring 22 stores energy and moderately resists external force to prevent accidental contact that could cause the parts to loosen. After the operation is completed, the spring 22 can push the sliding plate 19 and move the locking strips 20 back into place with its strong elastic rebound force, helping the scraper 17 to quickly relock and complete the replacement.

[0037] Working principle: First, the operator places the polyvinyl chloride (PVC) plastic inside the transport trough 12. Then, by turning on the motor 16, the drive end rotates the sprocket 13, causing the chain 14 to rotate back and forth. This, in turn, drives the mounting base 15 to push the particles along the transport trough 12 for transport. However, due to a gap between the mounting base 15 and the bottom of the transport trough 12, some particles are left behind at the edge and cannot be pushed. At this point, the power switch of the dual-head motor 9 is turned on. The drive end of the dual-head motor 9 rotates, causing the two eccentric wheels 10 to rotate at high speed, thereby causing the vibrating plate 7 to vibrate up and down, sliding on the sliding vertical... Outside of rod 6, the reaction force generated by spring 2 8 pushes it to vibrate and reset, while simultaneously driving the vibrating frame 5 to slide outside of the sliding crossbar 3. Then, the reaction force of spring 1 4 pushes the vibrating frame 5 to vibrate and reset, finally driving the top conveying trough 12 to vibrate as a whole, vibrating out the polyvinyl chloride particles inside the gap. After being scraped and cleaned by scraper 17, the problem of particle residue is effectively solved. The overall vibration of the vibrating plate, vibrating frame and conveying trough can fully vibrate out the particles in the gap, avoiding material waste, and also reducing the potential equipment failure caused by material accumulation in the gap, ensuring the continuous and stable operation of the equipment.

[0038] Secondly, since the bottom of the scraper 17 reciprocates in contact with the bottom of the conveying trough 12, it wears out and needs to be replaced. At this time, by pressing the button 21, the sliding rod 18 is moved to the rear, thereby causing the multiple locking strips 20 on the sliding plate 19 to separate from the scraper 17, and the scraper 17 is slid out from the inside of the mounting base 15. After replacement, the sliding plate 19 is pushed back to its original position by the reaction force of the spring 3 22, and the locking strips 20 are re-engaged inside the scraper 17 to complete the fixation. The whole process is simple and convenient. Skilled workers can complete the replacement in just a few minutes, which greatly reduces the production stoppage caused by equipment downtime and improves work efficiency.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scraper conveyor for continuous cleaning of polyvinyl chloride granules, comprising a base plate (1) and a conveying trough (12), characterized in that: Two upright plates (2) are fixedly connected to the top of the base plate (1). Sliding crossbars (3) are fixedly connected inside the two upright plates (2). Spring 1 (4) is sleeved on the outside of the sliding crossbars (3). Vibration frame (5) is slidably connected to the outside of the two sliding crossbars (3). Two sliding vertical rods (6) are fixedly connected inside the vibration frame (5). Vibration plate (7) is slidably connected to the outside of the sliding vertical rods (6). Two spring 2 (8) are fixedly connected to the upper and lower ends of the vibration plate (7). A double-headed motor (9) is fixedly connected inside the vibration plate (7). Eccentric wheels (10) are fixedly connected to the two drive ends of the double-headed motor (9). Two support plates (11) are fixedly connected to the top of the vibration plate (7). The top of the two support plates (11) is fixedly connected to the bottom of the transport trough (12). A transport assembly for transporting polyvinyl chloride particles is provided inside the transport trough (12).

2. The scraper conveyor for continuous cleaning of polyvinyl chloride granules according to claim 1, characterized in that: One end of the first spring (4) is fixedly connected to the outside of the vibrating frame (5), the other end of the first spring (4) is fixedly connected to the outside of the upright plate (2), and the outside of the second spring (8) is fixedly connected to the inside of the vibrating frame (5).

3. The scraper conveyor for continuous cleaning of polyvinyl chloride granules according to claim 1, characterized in that: The transport assembly includes two sprockets (13), which are rotatably connected to the outside of the transport trough (12). A chain (14) is meshed with the outside of the sprockets (13), and a plurality of mounting seats (15) are fixedly connected to the outside of the chain (14). A disassembly assembly for disassembly and replacement is provided inside the mounting seat (15).

4. The scraper conveyor for continuous cleaning of polyvinyl chloride granules according to claim 3, characterized in that: A motor (16) is fixedly connected to the outside of the transport trough (12), and the drive end of the motor (16) is fixedly connected inside one of the sprockets (13).

5. A scraper conveyor for continuous cleaning of polyvinyl chloride granules according to claim 3, characterized in that: The disassembly assembly includes a sliding rod (18), which is externally slidably connected to the inside of the mounting base (15). A sliding plate (19) is fixedly connected to the outside of the sliding rod (18), and a plurality of locking strips (20) are fixedly connected to one side of the sliding plate (19).

6. A scraper conveyor for continuous cleaning of polyvinyl chloride granules according to claim 5, characterized in that: One end of the sliding rod (18) is fixedly connected to a pressing plate (21), and the outside of the pressing plate (21) is slidably connected to the inside of the mounting base (15).

7. A scraper conveyor for continuous cleaning of polyvinyl chloride granules according to claim 5, characterized in that: The mounting base (15) is internally slidably connected to a scraper (17), and the exterior of the plurality of locking strips (20) engages with the interior of the scraper (17).

8. A scraper conveyor for continuous cleaning of polyvinyl chloride granules according to claim 7, characterized in that: The sliding rod (18) is fitted with a spring three (22), one end of the spring three (22) is fixedly connected to the outside of the sliding plate (19), and the other end of the spring three (22) is fixedly connected to the inside of the mounting base (15).

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