PVC pipe cutting and separating device with automatic calibration auxiliary function

Abstract

The application discloses PVC pipe cutting and separating equipment with automatic calibration auxiliary function, relates to the technical field of PVC pipe cutting and separating, and is used for solving the problem that cutting and separating cannot be carried out during pipe movement when fixed-length cutting of PVC pipe is carried out, and the overall rate of PVC pipe cutting is reduced; the application is characterized in that the rotation of the rotating shaft driven by the swing lever, the upper fixed tooth and the rotating process is utilized to realize the rotation of the cutting blade on the cutting frame while the cutting table is moved, and the pipe cutting and pushing are completed when the PVC pipe in the contact sleeve is contacted, the shaking of the pipe during the cutting process is avoided, the plurality of locking blocks on the fixed disc are driven to move towards the center while the rotating sleeve in the sleeve is contacted with the tooth column during the descending process of the cutting table, the plurality of locking blocks are abutted against the outer wall of the pipe, the PVC pipe cutting is more stable, the cutting and separating of the pipe are completed during the movement, and the overall rate of the PVC pipe cutting and separating is improved.

Description

Technical Field

[0001] This invention relates to the field of PVC pipe cutting and separation technology, specifically to PVC pipe cutting and separation equipment with automatic calibration auxiliary function. Background Technology

[0002] PVC pipe is a type of pipe made of polyvinyl chloride resin. After being treated with stabilizers and lubricants, it is extruded using a hot-pressing method. This type of pipe has been widely used since the early days. PVC pipe has advantages such as strong corrosion resistance, easy bonding, low price, and hard texture. However, due to the leaching of PVC monomers and additives, it is only suitable for water supply systems with a temperature not exceeding 45°C. Plastic pipes are widely used in drainage, wastewater treatment, chemical transportation, heating and cooling liquid transportation, food processing, ultrapure liquid transportation, slurry transportation, gas transportation, compressed air and vacuum system applications, etc. The subsequent secondary processing of PVC pipes is similar to the assembly and molding of water pipe adapters. The subsequent batch cutting of PVC pipes requires the same cutting length and flat cutting surface. Therefore, the cutting workload is relatively large compared to the construction of PVC pipe projects. As mentioned in the patent document with publication number CN115256507A, the workers place the pipes on the feeding mechanism, which includes two rolling components for pushing the pipes to move. Each rolling component includes two pushing rollers that can move closer and further away from each other and rotate. The two pushing rollers move closer to each other to clamp and fix the pipes. The pushing rollers rotate to push the pipes closer to the cutting box, and then the length is recorded and measured by a roller meter to ensure the accuracy of the cut pipe length. However, considering the inefficiency of the subsequent pushing and cutting method, the overall progress of fixed-length cutting of PVC pipes is slowed down. Therefore, we propose a PVC pipe cutting and separation device with automatic calibration assistance. Summary of the Invention

[0003] The purpose of this invention is to provide a PVC pipe cutting and separating device with automatic calibration auxiliary function, so as to solve the problem mentioned in the background art that when performing fixed-length cutting of PVC pipes, it is not possible to cut during the pipe movement process, thus reducing the overall cutting speed of PVC pipes.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a PVC pipe cutting and separating device with automatic calibration auxiliary function, including a placement rack, a storage rack and a pipe cutting table. A storage rack is installed on one side of the placement rack, and a pipe cutting table is fixed to one side of the placement rack by bolts. A turntable is movably connected to the inner wall of one side of the pipe cutting table through a bearing, and a swing rod is fixed to the central axis of the turntable by spot welding. The tube cutting table is equipped with a cutting table, and a cavity is opened in the cutting table. One end of the swing rod passes through one side of the cutting table and is fixedly connected to the cavity by spot welding with a fixing tooth. A cutting frame is fixed to the inner wall of one side of the cutting table by bolts. A blade is movably connected to the cutting frame. A rotating shaft is movably connected to the inner wall of one side of the cutting table by a bearing. One end of the rotating shaft passes through the cutting frame and one side of the cavity respectively and is fitted with a fixing tooth. The fixing tooth and the fixing tooth are meshed together.

[0005] Furthermore, an eccentric wheel two is movably connected to one side of the tube cutting table, and a swing rod two is fixedly connected to one side of the eccentric wheel two. One end of the swing rod two is movably connected to the outer wall of the cutting table, and a sleeve rod is movably connected to the outer wall of the eccentric wheel two and the eccentric wheel one.

[0006] Furthermore, a slotted platform is installed and fixed inside the tube cutting table, and a sleeve is slidably connected in the top channel of the slotted platform. Clamping shells are symmetrically installed on the outer wall of the sleeve. Toothed columns are symmetrically fixed on one side of the cutting table by spot welding, and one end of the toothed column is slidably connected to the clamping shell.

[0007] Furthermore, a rotating sleeve is movably connected inside the clamping shell, and the rotating sleeve is evenly provided with arc grooves. A fixed plate is fixedly connected inside the clamping shell, and a slide is provided on the fixed plate. A locking block is slidably connected inside the slide. An elastic ball is installed at one end of the locking block, and a protrusion on one side of the locking block abuts against the arc groove on the rotating sleeve.

[0008] Furthermore, a slide table is slidably connected to the top of the placement rack, a three-jaw chuck is mounted on the slide table, and calibration stabilization mechanisms are mounted on both sides of the tube cutting table.

[0009] Furthermore, the calibration stabilization mechanism includes a storage frustum and a storage plate. The storage frustum is fixed to both sides of the tube cutting table by bolts. The storage plate is symmetrically slidably connected to the storage frustum. The clamping roller is movably connected to the storage plate. The outer wall of the storage frustum is symmetrically rotatably connected to a rotating rod assembly through bearings. The two ends of the rotating rod assembly are movably connected to one side of the upper and lower storage plates, respectively.

[0010] Furthermore, the calibration stabilization mechanism also includes a motor and a slider. The motor is fixed to the top of the storage truncated cone by bolts, and the slider is slidably connected to the storage truncated cone. A threaded rod is connected to the output end of the motor and threadedly connected to the slider. One side of the slider is fixed to the outer wall of the storage plate by a rod.

[0011] The method for cutting and separating PVC pipes with automatic calibration assistance is as follows: The PVC pipe is fed to the storage rack and falls onto the placement rack. One end is clamped by the three-jaw chuck on the slide table and pushed towards the pipe cutting table. After one end of the PVC pipe enters the storage round table, the motor is started to drive the slider to move downward. The gap between the clamping rollers on the relatively moving storage plate decreases until the PVC pipe is leveled. Locking dynamic cutting, the subsequent PVC pipe is pushed into the sleeve by the three-jaw chuck, and the power mechanism located on the outside of the pipe cutting table is activated to drive the turntable to rotate. The rotation of the turntable drives the cutting table to rotate in a circular motion. The first fixed tooth on the swing arm rotates and drives the second fixed tooth on the rotating shaft to rotate, which causes the gear located in the cutting frame to rotate and drive the blade to rotate. During the entire descent of the cutting table, the blade contacts the PVC pipe located in the cut on the sleeve, pressing and cutting while driving the entire sleeve to move. As the cutting table descends, the toothed column contacts the inner rotating sleeve of the clamp, causing the rotating sleeve to rotate and simultaneously enabling the four locking blocks on the fixed plate to move centripetally. This causes the elastic ball at the front end of the locking block to abut against the outer wall of the PVC pipe, thus stabilizing the PVC pipe during cutting. Subsequently, the cut PVC pipe is discharged through the rotation of the clamping roller on the calibration and stabilization mechanism on the other side.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the rotation of the turntable drives the rotation of the first swing arm and the second swing arm on the eccentric wheel to achieve the circular motion of the entire cutting table. At the same time, the rotation of the fixed tooth on the first swing arm drives the rotation of the shaft, which enables the cutting table to move while the blade on the cutting frame rotates. When it contacts the PVC pipe inside the sleeve, it completes the cutting and pushing of the pipe, while avoiding the shaking of the pipe during the cutting process. During the descent of the cutting table, the tooth column contacts the rotating sleeve inside the sleeve, which drives the rotating sleeve to rotate and at the same time realizes the centripetal movement of multiple sets of locking blocks on the fixed plate, which abut against the outer wall of the pipe to tighten the outer wall of the pipe, making the PVC pipe cutting more stable. The pipe is cut during the movement, improving the overall cutting and separation rate of PVC pipe. 2. In this invention, the PVC pipe is moved by a three-jaw chuck on the slide. When it is necessary to change the overall cutting length of the pipe, the locking block disengages and abuts against the surface of the pipe during the rising process of the cutting table, and the pipe is dragged to move, thereby changing the single cutting length of the pipe. This allows for flexible length adjustment during the fixed-length cutting of PVC pipe. At the same time, when cutting large diameter pipes, the three-jaw chuck can be rotated in conjunction with the blade for cutting, making the cutting method more flexible. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the PVC pipe cutting and separating device with automatic calibration auxiliary function according to the present invention; Figure 2 This is a schematic diagram of the overall structure of the calibration and stabilization mechanism of the present invention; Figure 3 This is a schematic diagram of the cutting table blade contacting and cutting the PVC pipe inside the sleeve according to the present invention; Figure 4 This is a top view cross-sectional diagram of the cavity inside the cutting table of the present invention; Figure 5 This is a schematic diagram of the cutting frame mounting structure on the cutting table of the present invention; Figure 6 This is a schematic diagram of the toothed column and sleeve abutment structure on the cutting table of the present invention; Figure 7 This is an exploded view of the internal components of the clamping shell of the present invention.

[0014] In the diagram: 1. Placement rack; 2. Storage rack; 3. Slide table; 4. Three-jaw chuck; 5. Pipe cutting table; 6. Calibration and stabilization mechanism; 601. Storage frustum; 602. Storage plate; 603. Clamping roller; 604. Rotating rod assembly; 605. Motor; 606. Slider; 7. Turntable; 8. Eccentric wheel one; 9. Swing rod one; 10. Eccentric wheel two; 11. Sleeve rod; 12. Swing rod two; 13. Cutting table; 14. Cavity; 15. Fixed tooth one; 16. Rotating shaft; 17. Fixed tooth two; 18. Cutting frame; 19. Blade; 20. Tooth column; 21. Groove platform; 22. Sleeve; 23. Cutting notch; 24. Clamping shell; 25. Rotating sleeve; 26. Arc groove; 27. Fixed plate; 28. Slide rail; 29. ​​Locking block; 30. Elastic ball bearing. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-7 The present invention provides a technical solution: Example 1: Applied to the subsequent processing of PVC pipes, similar to the assembly of water pipe adapters. Subsequent batch cutting of PVC pipes requires uniform cutting lengths and smooth cut surfaces. Therefore, the cutting workload is significantly larger compared to traditional PVC pipe construction projects. Therefore, as... Figure 1 As shown, a PVC pipe cutting instrument that can be used for fixed-length cutting and has built-in calibration assistance is designed to improve the overall cutting efficiency of PVC pipes. The main body of the PVC pipe cutting and separating equipment consists of a placement rack 1, a storage rack 2, and a pipe cutting table 5. The long PVC pipes to be cut are placed on the placement rack 1 in advance. The turning mechanism on the placement rack 1 automatically rotates to discharge the material, and the single PVC pipe is automatically discharged on the placement rack 1. Considering the movement of PVC pipes on the placement rack 1, a sliding table 3 is connected to the two tracks of the placement rack 1. A three-jaw chuck 4 is installed on one side of the sliding table 3. After the three-jaw chuck 4 contacts one end of the PVC pipe and clamps it, it actively pushes the PVC pipe from the storage rack into the pipe cutting table 5. At the same time, the rotation of the three-jaw chuck 4 can also drive the PVC pipe to rotate synchronously. This is convenient for cutting large-diameter PVC pipes later. Since the cutting range of the subsequent blade 19 is limited, the PVC pipe can be rotated by the three-jaw chuck 4 to complete the rotational cutting of the PVC pipe, thereby expanding the diameter range of the PVC pipes that the device can cut. A groove 21 is provided on the inner wall of the pipe cutting table 5. A sleeve 22 is slidably connected on the groove 21. The center of the sleeve 22 is at the same horizontal height as the center of the truncated cone 601 stored on the calibration and stabilization mechanism 6 on both sides of the pipe cutting table 5. This prevents the PVC pipe from sinking due to gravity and being unable to enter the sleeve 22, or from being cut directly, which could easily cause an uneven cut surface. Therefore, the calibration and stabilization mechanism 6 is used to raise and stabilize the movement of the PVC pipe. like Figure 2 As shown, a storage plate 602 slides symmetrically on one side of the storage truncated cone 601. A clamping roller 603 is movably connected to the opposite side of the storage plate 602. The PVC pipe is centered by reducing the distance between the two clamping rollers 603, without hindering the sliding of the PVC pipe. For driving the clamping rollers 603, a slider 606 is slidably connected to the top of the storage truncated cone 601. At the same time, a motor 605 installed on the storage truncated cone 601 drives the threaded rod to rotate, thereby controlling the up and down position of the slider 606. One side of the slider 606 is connected to a column and locked to the top storage plate 602. When one side of the storage plate 602 slides, the other side of the storage plate 602 moves upward synchronously through the rotation of the rotating rod assembly 604, thereby lifting and clamping the PVC pipe. Similarly, a calibration and stabilization mechanism 6 is synchronously set on the discharge side of the pipe cutting table 5 to drive the movement of the cut PVC pipe and accelerate the cutting, separation and unloading of the PVC pipe.

[0017] Example 2: For cutting small-diameter PVC pipes, pipe cutters, ratchet pipe cutters, and electric saws are commonly used. These methods utilize the principles of extrusion and rotation, and the PVC pipe is moved synchronously by the blade 19 during the cutting process, completing the pipe cutting during the movement. like Figure 3As shown, a turntable 7 is movably connected to one side of the tube cutting table 5, and a rocker arm 9 is fixedly connected to one side of the turntable 7. The rocker arm 9 and the rocker arm 12 on the eccentric wheel 10 on the other side of the tube cutting table 5 have a "Z" structure. During the rotation, the cutting table 13 movably connected to one side will perform a circular motion. At the same time, the cutting table 13 movably connected to the end of the rocker arm 9 and the rocker arm 12 will rotate. A sleeve rod 11 is movably connected between the eccentric wheel 8 on the turntable 7 and the eccentric wheel 10 on the tube cutting table 5. Regarding the installation of the cutting table 13, such as Figure 4 and Figure 5 As shown, a fixed tooth 15 is fixedly fitted in the cavity 14 of the cutting table 13 with a swing arm 9. The fixed tooth 15 rotates with the rotation of the swing arm 9. At the same time, a fixed tooth 17 is fixedly connected to one end of the rotating shaft 16 on the cutting table 13 and meshes with the fixed tooth 15. Therefore, when the cutting table 13 is in normal circular motion, it drives the rotating shaft 16 to rotate on the cutting table 13. With the rotation of the rotating shaft 16, a cutting frame 18 is fixedly connected to the inner wall of the cutting table 13. A blade 19 is movably connected to the cutting frame 18. One end of the rotating shaft 16 passes through the cutting frame 18, and after the rotating shaft 16 rotates, it drives the blade 19 on the cutting frame 18 to rotate. With the meshing between the large and small gears, the blade 19 is driven to rotate at high speed. The rotation of the turntable 7 drives the cutting table 13 to rotate in a circular motion, and at the same time, it can also drive the cutting blade 19 to rotate, realizing the moving cutting of PVC pipes without the need for continuous fixed-point pushing of the slide table 3, thus reducing the overall power consumption of the PVC pipe cutting equipment. To improve the cutting stability of PVC pipes, a sleeve 22 is slidably connected on the groove platform 21. The overall structure of the sleeve 22 is as follows: Figure 6 and Figure 7 As shown, the toothed column 20 located inside the cutting table 13 is sleeved with the clamping shell 24 on the sleeve 22, and the rotating sleeve 25 is movably connected inside the clamping shell 24. The toothed ring on the rotating sleeve 25 can mesh with the toothed thread on the toothed column 20. With each descent of the cutting table 13, the toothed column 20 is synchronously driven to descend and contact the rotating sleeve 25 inside the clamping shell 24, thereby driving the rotating sleeve 25 to rotate. A fixed plate 27 is also fixedly installed on the inner wall of the clamp 24. The fixed plate 27 has evenly spaced slides 28, and a locking block 29 is slidably connected in the slides 28. An elastic ball 30 is installed on the inner side of the locking block 29. At the same time, the protrusion on the locking block 29 extends to the inner arc groove 26 of the rotating sleeve 25. After the rotating sleeve 25 rotates, it drives the four locking blocks 29 to move synchronously towards the center, and the elastic ball 30 at the front end of the locking block 29 abuts against the outer wall of the PVC pipe, thus stabilizing both ends of the PVC pipe. Then, the blade 19 on the cutting table 13 descends and contacts the PVC pipe in the cutting opening 23, moving the PVC pipe while completing the cutting work. The descending toothed column 20 drives the locking block 29 to stabilize the PVC pipe, avoiding uneven cut surfaces caused by the inertia of the blade 19 during the initial contact when directly cutting the PVC pipe, which would affect the fixed-length cutting and the flatness of the cut surface. After the locking block 29 disengages from locking the PVC pipe, the rising cutting table 13 prevents the PVC pipe from moving continuously. Because the fixed rotation range of the first and second swing arms results in a relatively fixed range of motion of the cutting table 13, as well as the distance the PVC pipe is moved and the cutting length. In order to facilitate the adjustment of the fixed-length cutting distance of the entire PVC pipe, the slide table 3 on the mounting frame 1 needs to participate in the position adjustment of the PVC pipe each time it is cut, as follows: When the required cutting length of the PVC pipe increases, when the turntable 7 rotates and drives the cutting table 13 to move downward, the cutting blade 19 on the cutting table 13 begins to contact the PVC pipe in the cut 23. After the PVC pipe is cut, the cutting table 13 moves upward. At this time, the toothed column 20 drives the rotating sleeve 25 to rotate in the opposite direction, so that the locking block 29 disengages from the outer wall of the PVC pipe. At this time, the three-jaw chuck 4 on the slide table 3 pushes the long PVC pipe to move a certain distance. Therefore, the distance the PVC pipe is transported during the subsequent cutting process of the blade 19 is the fixed-length cutting length of the PVC pipe in a single operation. Conversely, by shortening the single-cut length of PVC pipes, after the blade 19 finishes cutting, the three-jaw chuck 4 moves the PVC pipe in the opposite direction for a certain distance. The cut length of the PVC pipe is equal to the distance the blade 19 pushes the PVC pipe to move minus the length of the three-jaw chuck 4 pulling back. With the entire slide table 3 participating, the fixed-length cutting of the PVC pipe becomes more flexible.

[0018] The working principle of this invention is as follows: the PVC pipe located on the storage rack 2 falls onto the placement rack 1, and after one end is clamped by the three-jaw chuck 4 on the slide table 3, it is pushed towards the pipe cutting table 5. After one end of the PVC pipe enters the storage round table 601, the motor 605 is started to drive the slider 606 to move downward. The distance between the clamping rollers 603 on the relatively moving storage plate 602 decreases until the PVC pipe is leveled. Subsequently, the PVC pipe is pushed into the sleeve 22 by the three-jaw chuck 4. The power mechanism located outside the pipe cutting table 5 is activated to drive the turntable 7 to rotate. The rotation of the turntable 7 drives the cutting table 13 to move in a circular motion. The fixed tooth 15 on the swing arm 9 rotates and drives the fixed tooth 17 on the rotating shaft 16 to rotate, causing the gear in the cutting frame 18 to rotate and drive the blade 19 to rotate. During the entire descent of the cutting table 13, it contacts the PVC pipe in the cut 23 on the sleeve 22, pressing and cutting while driving the sleeve 22 to move as a whole. As the cutting table 13 descends, the toothed column 20 contacts the inner rotating sleeve 25 of the clamping shell 24, causing the rotating sleeve 25 to rotate. At the same time, the four locking blocks 29 on the fixed plate 27 move centripetally, and the elastic ball 30 at the front end of the locking block 29 abuts against the outer wall of the PVC pipe, thus stabilizing the PVC pipe during cutting. Subsequently, the cut PVC pipe is discharged through the rotation of the clamping roller 603 on the calibration and stabilization mechanism 6 on the other side.

[0019] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0020] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A PVC pipe cutting and separating device with automatic calibration auxiliary function, comprising a placement rack, a storage rack, and a pipe cutting table, wherein a storage rack is installed on one side of the placement rack, and a pipe cutting table is fixed to one side of the placement rack by bolts, characterized in that, A turntable is movably connected to one side of the inner wall of the tube cutting table via a bearing, and a swing arm is fixed to the central shaft of the turntable by spot welding. The tube cutting table is equipped with a cutting table, and a cavity is opened in the cutting table. One end of the swing rod passes through one side of the cutting table and is fixedly connected to the cavity by spot welding with a fixing tooth. A cutting frame is fixed to one side of the inner wall of the cutting table by bolts. A blade is movably connected to the cutting frame. A rotating shaft is movably connected to one side of the inner wall of the cutting table by a bearing. One end of the rotating shaft passes through the cutting frame and one side of the cavity respectively and is fitted with a fixing tooth. The fixing tooth and the fixing tooth are meshed and connected. One side of the tube cutting table is movably connected to an eccentric wheel two, and one side of the eccentric wheel two is fixedly connected to a swing rod two. One end of the swing rod two is movably connected to the outer wall of the cutting table, and a sleeve rod is movably connected to the outer wall of the eccentric wheel two and the eccentric wheel one. A slotted platform is installed and fixed inside the tube cutting table. A sleeve is slidably connected in the top channel of the slotted platform. Clamping shells are symmetrically installed on the outer wall of the sleeve. A toothed column is symmetrically fixed on one side of the cutting table by spot welding. One end of the toothed column is slidably connected to the clamping shell. A rotating sleeve is movably connected inside the clamping shell. The rotating sleeve has evenly spaced arc grooves. A fixed plate is fixedly connected inside the clamping shell. A slide rail is provided on the fixed plate. A locking block is slidably connected inside the slide rail. An elastic ball is installed at one end of the locking block. A protrusion on one side of the locking block abuts against the arc groove on the rotating sleeve.

2. The PVC pipe cutting and separating equipment with automatic calibration auxiliary function according to claim 1, characterized in that, The top of the placement rack is slidably connected to a slide table, and a three-jaw chuck is installed on the slide table. Calibration and stabilization mechanisms are installed on both sides of the tube cutting table.

3. The PVC pipe cutting and separating equipment with automatic calibration auxiliary function according to claim 2, characterized in that, The calibration stabilization mechanism includes a storage frustum and a storage plate. The storage frustum is fixed to both sides of the tube cutting stage by bolts. The storage plate is symmetrically slidably connected to the storage frustum. The clamping roller is movably connected to the storage plate. The outer wall of the storage frustum is symmetrically rotatably connected to a rotating rod assembly through bearings. The two ends of the rotating rod assembly are movably connected to one side of the upper and lower storage plates, respectively.

4. The PVC pipe cutting and separating equipment with automatic calibration auxiliary function according to claim 3, characterized in that, The calibration stabilization mechanism also includes a motor and a slider. The motor is fixed to the top of the storage truncated cone by bolts, and the slider is slidably connected to the storage truncated cone. A threaded rod is connected to the output end of the motor and threadedly connected to the slider. One side of the slider is fixed to the outer wall of the storage plate by a rod.

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