Magnetic material positioning and mounting mechanism for processing magnetic cable trench cover plate

Abstract

The invention discloses a magnetic material positioning and mounting mechanism for magnetic cable trench cover plate processing, which comprises a roller conveyor and a support frame arranged on one side of the roller conveyor, a limiting vertical plate is arranged above the support frame, and an air cylinder I is fixedly mounted in the limiting vertical plate; the output end of the air cylinder I is provided with a uniform pressing and dust removing assembly for uniformly pressing the magnetic material and removing dust in the groove; starting from two angles before and during installation of the magnetic material, namely, before the magnetic material is installed, the position accuracy of the magnetic material during installation is ensured in a manner of firstly intercepting and then adjusting, and during installation of the magnetic material, the magnetic material is firstly subjected to limiting installation and synchronous'gas storage ', and then the magnetic material is uniformly pressed, so that the position accuracy of the magnetic material during installation is ensured. And finally, dust removal treatment is carried out on the groove of the cable trench cover plate through gas storage, and the installation efficiency and the installation quality of the magnetic material are jointly improved through mutual cooperation before and after installation.

Description

Technical Field

[0001] The present invention relates to the technical field of cable trench cover installation, and more specifically, to a magnetic material positioning and installation mechanism for processing magnetic cable trench cover. Background Art

[0002] Magnetic cable trench covers are made of magnetic materials (such as magnetic alloys or designs with embedded magnets). They are attached to the frame or bracket of the cable trench through magnetic force, enabling convenient opening and closing operations. The traditional processing step of magnetic cable trench covers is to install the magnetic material in the reserved groove of the cable trench cover. During the processing and molding of the cable trench cover, pollutants such as dust, grease, metal debris and other impurities may be introduced due to unclean equipment, molds or operating environment. When impurities enter the reserved groove of the cable trench cover, the magnetic material will not be able to fully enter the reserved groove, that is, it will be stuck in the middle of the reserved groove, affecting the installation quality of the magnetic cable trench cover. It is impossible to clean the reserved groove in time before the magnetic material is installed. When positioning and installing the magnetic material into the reserved groove, it is necessary to press it to ensure that the magnetic material is tightly attached to the inner wall of the reserved groove. However, when the size of the magnetic material is large, uneven pressure applied will cause uneven installation of the magnetic material, and it is impossible to simultaneously apply pressure to the sides of magnetic materials of different sizes to ensure that the magnetic material is evenly stressed, thereby improving the installation quality of the magnetic cable trench cover. In view of the above technical defects, a solution is now provided. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a magnetic material positioning and installation mechanism for processing magnetic cable trench covers.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a magnetic material positioning and installation mechanism for processing magnetic cable trench covers, comprising a roller conveyor and a support frame arranged on one side thereof, a limit vertical plate being provided above the support frame, a cylinder 1 being fixedly installed inside the limit vertical plate, and a uniform pressing and dust removal component for uniformly pressing the magnetic material and removing dust from the groove being provided at the output end of the cylinder 1; The uniform pressing dust removal assembly includes a fixed L-plate fixedly mounted on the bottom of the cylinder, the inner side of the fixed L-plate is connected to a movable L-plate via a mounting shaft, and a dust removal member for removing dust from the groove is provided on one side of the connecting shaft; The roller conveyor is provided with a position adjusting member for adjusting the position of the cable trench cover near the outer side of the support frame.

[0005] Furthermore, a second motor is fixedly provided on the top wall of the movable L-plate, a first bidirectional threaded rod is fixedly provided on the output end of the second motor, and the end of the first bidirectional threaded rod is rotatably matched with the movable L-plate.

[0006] Furthermore, a lifting plate is threadedly connected to the outer walls on both sides of the bidirectional threaded rod, and the lifting plate slides with the movable L plate. The interior of the lifting plate is connected to a retraction plate through a thrust spring, and a roller is rotatably provided at the bottom of the retraction plate.

[0007] Furthermore, a limiting plate is rotatably connected to the middle portion of the bidirectional threaded rod 1, one side of the limiting plate is fixedly connected to the movable L-plate, and a cross pressing plate is fixedly installed on the other side of the limiting plate.

[0008] Furthermore, extended pressing plates are slidably provided on both sides of the cross pressing plate, one side of the extended pressing plate is fixedly connected to the lifting plate, and one side of the extended pressing plate is aligned with one side of the cross pressing plate, and rubber pads are provided on the side walls of the cross pressing plate and the extended pressing plate.

[0009] Furthermore, the dust removal component includes a motor 1 connected to a fixed L-plate, an adjusting threaded rod is fixedly provided at the output end of the motor 1, an air box is rotatably provided on the outer side of the adjusting threaded rod, and the air box is fixedly connected to the fixed L-plate, and a piston plate is threadedly connected to the outer wall of the adjusting threaded rod.

[0010] Furthermore, the piston plate is slidably fitted with the inner wall of the air box, an air pipe is inserted into the top wall of the air box away from motor 1, and a control valve is provided on the outer wall of the air pipe, an air bag is provided on the top wall of the air box close to the air pipe, the output end of the air pipe is connected to a dust removal pipe, the dust removal pipe is fixedly provided on one side of the cross pressing plate, and the output end of the dust removal pipe is shorter than the side wall of the cross pressing plate.

[0011] Furthermore, the position adjustment part includes a cylinder 2 fixedly installed at the bottom of the roller conveyor, and a lifting gear plate is fixedly provided at the output end of the cylinder 2. A side limit bar is provided on the outer side of the lifting gear plate, and the side limit bar is connected to the roller conveyor, and a gear is meshed and connected on the outer wall of the lifting gear plate.

[0012] Furthermore, a two-way threaded rod is fixedly provided at the center of the gear, both sides of the two-way threaded rod extend to the outside of the roller conveyor and a connecting frame is threadedly connected to its outer wall, an adjustment plate is fixedly provided on the top of the connecting frame, and the adjustment plate slides with the side wall of the roller conveyor, and a slide rail rod is slidably provided above the connecting frame, and the slide rail rod is fixedly connected to the roller conveyor.

[0013] Furthermore, an intercepting plate is fixedly provided on the top of the lifting gear plate, and the top of the intercepting plate is aligned with the top of the roller of the roller conveyor.

[0014] Technical effects and advantages of the present invention: 1. The present invention controls the cylinder to extend downward to the installation position. During this process, the roller at the bottom of the retraction plate first contacts the top of the cable trench cover, and then the two sides of the retraction plate are tightly attached to the two sides of the groove, and the magnetic material is installed into the inside of the groove. As the cylinder continues to descend, the retraction plate moves to the inside of the lifting plate until the cross pressing plate and the extended pressing plate press the top of the magnetic material to ensure that the magnetic material is pressed into the inside of the groove, and the cross pressing plate and the extended pressing plate can press the sides of the magnetic material. When the size of the magnetic material becomes larger, the distance between the two lifting plates becomes larger, and the extended pressing plate extends outward synchronously, thereby ensuring that the magnetic material is evenly stressed and improving the installation quality of the magnetic cable trench cover.

[0015] 2. The present invention drives the synchronous rotation of the adjusting threaded rod and the installation shaft by controlling the rotation of the motor. During this process, the piston plate moves to one side, increasing the pressure inside the air box, making the air bag larger for storing gas, and the roller conveyor drives the cable trench cover to move again, moving the other groove of the cable trench cover to the bottom of the cross pressing plate. At this time, the control valve on the gas pipe is opened, and the gas is quickly discharged through the dust removal pipe to complete the dust removal inside the groove, avoiding the magnetic material from being stuck in the middle of the reserved groove, affecting the installation quality of the magnetic cable trench cover, and completing the cleaning of the groove before installing the magnetic material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the appearance of the overall structure of the present invention.

[0017] Figure 2 It is a three-dimensional diagram of the overall structure of the uniformly pressed dust removal component in the present invention.

[0018] Figure 3 It is an enlarged three-dimensional diagram of the structure of the uniformly pressing dust removal component in the present invention.

[0019] Figure 4 It is a structural stereogram of the cross pressing plate in the present invention.

[0020] Figure 5 This is a front view of the internal structure of the lifting plate in the present invention.

[0021] Figure 6 This is a three-dimensional diagram of the appearance of the dust removal component in the present invention.

[0022] Figure 7 This is a front view of the internal structure of the dust removal component in the present invention.

[0023] Figure 8 It is a three-dimensional diagram of the position adjustment member in the present invention.

[0024] The accompanying drawings are marked as follows: 1. Roller conveyor; 2. Support frame; 3. Limiting vertical plate; 4. Cylinder one; 5. Uniformly press dust removal assembly; 6. Position adjustment part; 51. Fixed L plate; 52. Movable L plate; 53. Mounting shaft; 54. Dust removal part; 55. Two-way threaded rod one; 56. Lifting plate; 57. Extended pressing plate; 58. Cross pressing plate; 59. Dust removal pipe; 510. Retraction plate; 511. Roller; 512. Thrust spring; 541. Air box; 542. Inlet pipe; 543. Air supply pipe; 544. Air bag; 545. Motor one; 546. Adjusting threaded rod; 547. Piston plate; 61. Two-way threaded rod two; 62. Connecting frame; 63. Adjusting plate; 64. Slide rail rod; 65. Lifting gear plate; 66. Gear; 67. Cylinder two; 68. Side limit strip. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1 - Figure 8 As shown, in the prior art, when the size of the magnetic material is large, uneven pressure applied may cause uneven installation of the magnetic material, and impurities may enter the reserved groove of the cable trench cover, resulting in the magnetic material not being able to fully enter the reserved groove. This problem can be solved by the following solution; In this embodiment, a magnetic material positioning and installation mechanism for processing a magnetic cable trench cover comprises a roller conveyor 1 and a support frame 2 arranged on one side thereof. A limit riser 3 is provided above the support frame 2. A cylinder 1 4 is fixedly installed inside the limit riser 3. The output end of the cylinder 1 4 is provided with a uniform pressing and dust removal component 5 for uniformly pressing the magnetic material and removing dust from the groove. It should be noted that the roller conveyor 1 is a functional device in the prior art that has the function of conveying cable trench covers. It is a prior art device and does not need to be described in detail. It is sufficient to describe the roller conveyor 1 in terms of its function of conveying the cable trench covers. The uniform pressing dust removal assembly 5 includes a fixed L-plate 51 fixedly mounted on the bottom of the cylinder 4. The inner side of the fixed L-plate 51 is connected to a movable L-plate 52 via a mounting shaft 53. A dust removal member 54 for removing dust from the groove is provided on one side of the connecting shaft. A second motor is fixedly mounted on the top wall of the movable L-plate 52. A first bidirectional threaded rod 55 is fixedly mounted on the output end of the second motor. The end of the first bidirectional threaded rod 55 is rotatably engaged with the movable L-plate 52. Lifting plates 56 are threadedly connected to the outer walls of both sides of the first bidirectional threaded rod 55. The lifting plates 56 are slidably engaged with the movable L-plate 52. The interior of the lifting plate 56 is connected to a retracting plate 510 via a thrust spring 512. A roller 511 is rotatably mounted on the bottom of the retracting plate 510. The magnetic material is transported between the two retracting plates 510 by the conveying fixture, and the bidirectional threaded rod 1 55 is rotated by controlling the motor 2. The two lifting plates 56 are limited by the movable L plate 52 and move closer to each other, thereby clamping the magnetic material. A limiting plate is rotatably connected to the middle of the bidirectional threaded rod 55. One side of the limiting plate is fixedly connected to the movable L-plate 52. A cross pressing plate 58 is fixedly installed on the other side of the limiting plate. Extended pressing plates 57 are slidably provided on both sides of the cross pressing plate 58. One side of the extended pressing plate 57 is fixedly connected to the lifting plate 56, and one side of the extended pressing plate 57 is aligned with one side of the cross pressing plate 58. And rubber pads are provided on the side walls of the cross pressing plate 58 and the extended pressing plate 57; Then the control cylinder 14 is extended downward to the installation position. During this process, the roller 511 at the bottom of the retracting plate 510 first contacts the top of the cable trench cover, and then the two sides of the retracting plate 510 are tightly attached to the two sides of the groove, installing the magnetic material into the interior of the groove. As the cylinder continues to descend, the retracting plate 510 moves to the interior of the lifting plate 56 until the cross pressing plate 58 and the extended pressing plate 57 press the top of the magnetic material, ensuring that the magnetic material is pressed into the interior of the groove, and the cross pressing plate 58 and the extended pressing plate 57 can press the sides of the magnetic material. The dust removal component 54 includes a motor 545 connected to the fixed L-plate 51. The output end of the motor 545 is fixedly provided with an adjusting threaded rod 546. The outer side of the adjusting threaded rod 546 is rotatably provided with an air box 541, and the air box 541 is fixedly connected to the fixed L-plate 51. The outer wall of the adjusting threaded rod 546 is threadedly connected to a piston plate 547. The piston plate 547 is slidably engaged with the inner wall of the air box 541. An air inlet pipe 542 and an air delivery pipe 543 are vertically inserted into the top wall of the air box 541 away from the motor 545, and a one-way valve is provided on the outer wall of the air inlet pipe 542. A control valve is provided on the outer wall of the air supply pipe 543. An air bag 544 is provided on the top wall of the air box 541 near the air inlet pipe 542. The output end of the air supply pipe 543 is connected to a dust removal pipe 59. The dust removal pipe 59 is fixedly provided on one side of the cross pressing plate 58, and the output end of the dust removal pipe 59 is shorter than the side wall of the cross pressing plate 58. Then the control motor 545 is controlled to rotate, driving the synchronous rotation of the adjusting threaded rod 546 and the installation shaft 53. During this process, the piston plate 547 moves to one side, increasing the pressure inside the air box 541, making the air bag 544 larger to store air, and the roller conveyor 1 drives the cable trench cover to move again, moving the other groove of the cable trench cover to the bottom of the cross pressing plate 58. At this time, the control valve on the air supply pipe 543 is opened, and the gas is quickly discharged through the dust removal pipe 59 to complete the dust removal inside the groove, so as to prevent the magnetic material from being stuck in the middle of the reserved groove and affecting the installation quality of the magnetic cable trench cover; It should be noted that when the mounting shaft 53 drives the movable L-plate 52 to reset, the motor drives the adjusting threaded rod 546 to rotate in the opposite direction, thereby controlling the piston plate 547 to reset. The gas entering the air box 541 enters from the dust removal pipe 59 and the air inlet pipe 542 at the same time. Example 2: Please refer to Figure 8 As shown in the figure, it is impossible to ensure the flatness and accuracy of the position of the cable trench cover during transportation. This can be solved by the following solution: In this embodiment, a position adjustment member 6 for adjusting the position of the cable trench cover is provided on the outer side of the roller conveyor 1 near the support frame 2. The position adjustment member 6 includes a second cylinder 67 fixedly mounted on the bottom of the roller conveyor 1. A lifting tooth plate 65 is fixedly provided on the output end of the second cylinder 67. A side limit bar 68 is provided on the outer side of the lifting tooth plate 65, and the side limit bar 68 is connected to the roller conveyor 1. A gear 66 is meshed and connected on the outer wall of the lifting gear plate 65. A two-way threaded rod 61 is fixedly provided at the center of the gear 66. Both sides of the two-way threaded rod 61 extend to the outside of the roller conveyor 1 and a connecting frame 62 is threadedly connected to its outer wall. An adjustment plate 63 is fixedly provided on the top of the connecting frame 62. The adjustment plate 63 slides with the side wall of the roller conveyor 1. A slide rail rod 64 is slidably provided above the connecting frame 62. The slide rail rod 64 is fixedly connected to the roller conveyor 1. An interception plate is fixedly provided on the top of the lifting gear plate 65, and the top of the interception plate is aligned with the top of the roller of the roller conveyor 1; In this embodiment, by controlling the upward movement of the second cylinder 67, the lifting tooth plate 65 can be controlled to move upward, thereby pushing the interception plate upward to intercept one side of the transported cable trench cover. At the same time, the transmission gear 66 of the lifting tooth plate 65 rotates, thereby driving the second bidirectional threaded rod 61 to rotate, and the two connecting frames 62 move closer to each other. The position of the cable trench cover is leveled by the synchronous movement of the two adjustment plates 63, ensuring the precision of its position when installing magnetic materials. In the present invention, it can be seen from the combination of Example 1 and Example 2 that: Starting from before and during the installation of magnetic materials, that is, before installing the magnetic materials, the position of the magnetic materials during installation is ensured to be accurate by intercepting them first and then adjusting them. During the installation of the magnetic materials, the magnetic materials are first installed in a limited position and "stored in air" simultaneously. Then, multiple groups of side edges of the magnetic materials are pressed to ensure that the magnetic materials are evenly stressed. Finally, the grooves of the cable trench cover are dust-removed by "storing in air". The mutual cooperation before and after installation has jointly improved the installation efficiency and quality of the magnetic materials.

[0027] Working principle: Step 1: The magnetic material is conveyed between the two retracting plates 510 by the conveying fixture. By controlling the motor 2 to rotate the bidirectional threaded rod 1 55 , the two lifting plates 56 are limited by the movable L plate 52 and move closer to each other, thereby clamping the magnetic material. Step 2: Next, after the cylinder 1 4 is controlled to extend downward to the rotation position, the motor 1 545 is controlled to rotate, driving the synchronous rotation of the adjusting threaded rod 546 and the installation shaft 53. The installation shaft 53 drives the movable L-plate 52 to rotate 90 degrees, so that the magnetic material is flush with the top of the cable trench cover. During this process, the piston plate 547 moves to one side, increasing the pressure inside the air box 541, causing the air bag 544 to expand and store air. Step 3: Control the cylinder 14 to extend downward to the installation position. During this process, the roller 511 at the bottom of the retraction plate 510 first contacts the top of the cable trench cover, and then the two sides of the retraction plate 510 are close to the two sides of the groove. Then, control the two-way threaded rod 155 to rotate, expand and adjust the distance between the two lifting plates 56, and install the magnetic material into the inside of the groove. As the cylinder continues to descend, the retraction plate 510 moves to the inside of the lifting plate 56 until the cross pressing plate 58 and the extended pressing plate 57 press the top of the magnetic material to ensure that the magnetic material is pressed into the inside of the groove, and the cross pressing plate 58 and the extended pressing plate 57 can press the sides of the magnetic material. When the size of the magnetic material becomes larger, the distance between the two lifting plates 56 becomes larger, and the extended pressing plate 57 extends outward synchronously, thereby ensuring that the magnetic material is evenly stressed and improving the installation quality of the magnetic cable trench cover. Step 4: Then, the roller conveyor 1 drives the cable trench cover to move again, and moves the other groove of the cable trench cover to the bottom of the cross pressing plate 58. At this time, the control valve on the gas pipe 543 is opened, and the gas is quickly discharged through the dust removal pipe 59 to complete the dust removal inside the groove, so as to prevent the magnetic material from being stuck in the middle of the reserved groove, affecting the installation quality of the magnetic cable trench cover, and complete the cleaning of the groove before installing the magnetic material.

[0028] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A magnetic material positioning and installation mechanism for processing magnetic cable trench covers, comprising a roller conveyor (1) and a support frame (2) arranged on one side thereof, characterized in that: A limiting vertical plate (3) is provided above the support frame (2), a cylinder 1 (4) is fixedly installed inside the limiting vertical plate (3), and a uniform pressing dust removal component (5) for uniformly pressing the magnetic material and removing dust from the groove is provided at the output end of the cylinder 1 (4); The uniform pressing dust removal assembly (5) comprises a fixed L-plate (51) fixedly mounted on the bottom of the cylinder (4); the inner side of the fixed L-plate (51) is connected to a movable L-plate (52) via a mounting shaft (53); and a dust removal member (54) for removing dust from the groove is provided on one side of the connecting shaft; A position adjustment member (6) for adjusting the position of the cable trench cover is provided on the outer side of the roller conveyor (1) close to the support frame (2).

2. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 1 is characterized in that: A second motor is fixedly provided on the top wall of the movable L-plate (52), a first bidirectional threaded rod (55) is fixedly provided on the output end of the second motor, and the end of the first bidirectional threaded rod (55) is rotatably engaged with the movable L-plate (52).

3. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 2, characterized in that: The outer walls of both sides of the bidirectional threaded rod (55) are threadedly connected with a lifting plate (56), and the lifting plate (56) is slidably matched with the movable L-plate (52). The interior of the lifting plate (56) is connected to a retracting plate (510) via a thrust spring (512), and a roller (511) is rotatably provided at the bottom of the retracting plate (510).

4. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 3 is characterized in that: The middle part of the bidirectional threaded rod (55) is rotatably connected to a limiting plate, one side of the limiting plate is fixedly connected to the movable L-plate (52), and the other side of the limiting plate is fixedly mounted with a cross pressing plate (58).

5. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 4, characterized in that: Extended pressing plates (57) are slidably provided on both sides of the cross pressing plate (58), one side of the extended pressing plate (57) is fixedly connected to the lifting plate (56), and one side of the extended pressing plate (57) is aligned with one side of the cross pressing plate (58), and rubber pads are provided on the side walls of the cross pressing plate (58) and the extended pressing plate (57).

6. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 5, characterized in that: The dust removal member (54) comprises a motor 1 (545) connected to a fixed L-plate (51); an adjusting threaded rod (546) is fixedly provided at the output end of the motor 1 (545); an air box (541) is rotatably provided on the outer side of the adjusting threaded rod (546); the air box (541) is fixedly connected to the fixed L-plate (51); and a piston plate (547) is threadedly connected to the outer wall of the adjusting threaded rod (546).

7. The magnetic material positioning and installation mechanism for processing a magnetic cable trench cover according to claim 6, characterized in that: The piston plate (547) is slidably engaged with the inner wall of the air box (541); an air supply pipe (543) is inserted into the top wall of the air box (541) away from the motor (545), and a control valve is provided on the outer wall of the air supply pipe (543); an air bag (544) is provided on the top wall of the air box (541) close to the air supply pipe (543); the output end of the air supply pipe (543) is connected to a dust removal pipe (59); the dust removal pipe (59) is fixedly provided on one side of the cross pressing plate (58), and the output end of the dust removal pipe (59) is shorter than the side wall of the cross pressing plate (58).

8. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 1, characterized in that: The position adjustment member (6) includes a second cylinder (67) fixedly mounted on the bottom of the roller conveyor (1), a lifting tooth plate (65) is fixedly provided at the output end of the second cylinder (67), a side limit bar (68) is provided on the outer side of the lifting tooth plate (65), and the side limit bar (68) is connected to the roller conveyor (1), and a gear (66) is meshedly connected on the outer wall of the lifting tooth plate (65).

9. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 8, characterized in that: A second bidirectional threaded rod (61) is fixedly provided at the center of the gear (66), both sides of the second bidirectional threaded rod (61) extend to the outside of the roller conveyor (1) and a connecting frame (62) is threadedly connected to the outer wall thereof, an adjustment plate (63) is fixedly provided on the top of the connecting frame (62), the adjustment plate (63) is slidably engaged with the side wall of the roller conveyor (1), a slide rail rod (64) is slidably provided above the connecting frame (62), and the slide rail rod (64) is fixedly connected to the roller conveyor (1).

10. The magnetic material positioning and installation mechanism for processing magnetic cable trench covers according to claim 9, characterized in that: An intercepting plate is fixedly provided on the top of the lifting tooth plate (65), and the top of the intercepting plate is aligned with the top of the roller of the roller conveyor (1).

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