Speed-adjustable finished product packaging conveying belt

Abstract

The utility model belongs to the technical field of conveying belts, and particularly relates to a speed-adjustable finished product packaging conveying belt which comprises an installation frame, a transmission mechanism and a material blocking mechanism, and the installation frame comprises a first installation plate and a second installation plate. A speed adjusting motor is controlled to drive a conveying belt body to rotate and drive a first rotating rod to rotate at the same time, the first rotating rod rotates to drive an inserting rod to rotate, the inserting rod moves in a transverse groove of a moving plate while rotating, and therefore the moving plate is driven to periodically move front and back, and the moving plate moves to drive a push plate to periodically move front and back; by arranging the conveying belt body, finished product packages can be regularly pushed away from the conveying belt body, the pushing plate can synchronously change the pushing time along with adjustment of the rotating speed of the conveying belt body, and the pushing efficiency is high; and therefore, the finished product packages are prevented from continuously moving along with rotation of the conveying belt body in the material pushing period, and the material pushing convenience of the pushing plate is improved.

Description

Technical Field

[0001] This invention belongs to the field of conveyor belt technology, specifically relating to an adjustable speed finished product packaging conveyor belt. Background Technology

[0002] Conveyor belts are composite products made of rubber and fiber, metal, or plastic and fabric that carry and transport materials. They are widely used in industries such as cement, coking, metallurgy, chemical, and steel. They are suitable for short conveying distances and small conveying volumes. The rotation speed of a conveyor belt can be adjusted as needed to change the movement speed of the materials it transports.

[0003] When existing conveyor belts transport finished product packages placed at equal intervals, the pusher plate of the pusher mechanism can periodically push the finished product packages away from the conveyor belt. However, when the speed of the conveyor belt changes, the pusher plate of the pusher mechanism is difficult to adjust synchronously, thus affecting the pushing efficiency of the pusher mechanism. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable speed finished product packaging conveyor belt, which solves the problem in the prior art where, when conveying equidistant finished product packaging, the pusher plate of the pushing mechanism can periodically push the finished product packaging away from the conveyor belt, but when the speed of the conveyor belt changes, the pusher plate of the pushing mechanism is difficult to adjust synchronously, thus affecting the pushing efficiency of the pushing mechanism.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] An adjustable speed finished product packaging conveyor belt, comprising:

[0007] The mounting frame includes a first mounting plate and a second mounting plate, a conveying mechanism is provided between the first mounting plate and the second mounting plate, and a push plate is provided above the mounting frame.

[0008] A transmission mechanism is provided on the top of the push plate. The transmission mechanism is used to drive the push plate to move and push the material while the conveying mechanism is conveying the finished product packaging.

[0009] A material blocking mechanism is provided above the conveying mechanism. The material blocking mechanism is used to prevent the finished product packaging from moving with the conveying mechanism during the pushing of the pusher plate.

[0010] In a preferred embodiment, the conveying mechanism includes a speed-regulating motor, a first rotating shaft, a second rotating shaft, a first conveying roller, a second conveying roller, and a conveyor belt body. The speed-regulating motor is fixedly mounted on the front of the first mounting plate. The output end of the speed-regulating motor passes through the first mounting plate and is rotatably connected to it. The first rotating shaft is fixedly mounted at the end of the output end of the speed-regulating motor. The first rotating shaft passes through the second mounting plate and is rotatably connected to it. The first mounting plate and the second mounting plate are rotatably connected by a bearing. The first and second conveying rollers pass through the outer sides of the first and second rotating shafts, respectively. The first rotating shaft is fixedly connected to the first conveying roller, and the second rotating shaft is fixedly connected to the second conveying roller. The conveyor belt body is sleeved on the outer sides of the first and second conveying rollers.

[0011] In a preferred embodiment, a top plate is provided above the mounting frame, and support columns are fixedly provided at the four corners of the bottom of the top plate. The top surfaces of the first mounting plate and the second mounting plate are fixedly connected to the support columns.

[0012] In a preferred embodiment, the transmission mechanism includes a first rotating rod, a synchronous belt, a second rotating rod, a first bevel gear, a second bevel gear, a third rotating rod, a disc, a plug rod, a movable plate, a first guide rod, a fixed plate, a driving gear, and a driven gear. The first rotating rod is fixedly mounted at the end of the first rotating shaft furthest from the speed-regulating motor. A driving gear is threaded through the outer side of the first rotating rod. The synchronous belt meshes with the outer side of the driving gear, and a driven gear meshes with the inner side of the synchronous belt. The second rotating rod is threaded through the front of the driven gear. A first bevel gear is fixedly mounted on the front of the second rotating rod. A third rotating rod is rotatably connected to the bottom of the top plate via a bearing. A second bevel gear is threaded through the outer side of the third rotating rod. A disc is fixedly mounted on the bottom surface of the third rotating rod, and a plug rod is fixedly mounted on the bottom surface of the disc. Two sets of symmetrical fixed plates are fixedly mounted on the bottom surface of the top plate. A first guide rod is fixedly mounted on one side of the fixed plates that is close to each other. A movable plate is threaded through the outer side of the first guide rod.

[0013] In a preferred embodiment, the first rotating rod is fixedly connected to the driving gear, the second rotating rod is fixedly connected to the driven gear, the first bevel gear meshes with the second bevel gear, the second bevel gear is fixedly connected to the third rotating rod, the movable plate is slidably connected to the first guide rod, the top surface of the movable plate is provided with a transverse groove adapted to the insertion rod, the insertion rod extends into the interior of the movable plate through the transverse groove and is movably connected to the movable plate, and the bottom surface of the movable plate is fixedly connected to the push plate.

[0014] In a preferred embodiment, the material blocking mechanism includes a material blocking plate, a second guide rod, and a connecting plate. The material blocking plate is disposed between the conveyor belt body and the top plate. Symmetrical connecting plates are hinged to the left and right sides of the material blocking plate. The other end of the connecting plate is hinged to the bottom surface of the movable plate. The top surfaces of the first mounting plate and the second mounting plate are both fixedly provided with a second guide rod. The second guide rod passes through the material blocking plate and is slidably connected to the material blocking plate.

[0015] The technical effects achieved by this utility model are as follows:

[0016] This utility model, by setting up a transmission mechanism, controls the speed-regulating motor to drive the conveyor belt body to rotate, which in turn drives the first rotating rod to rotate. The rotation of the first rotating rod drives the insertion rod to rotate, and the insertion rod moves inside the transverse groove of the moving plate while rotating, thereby driving the moving plate to move back and forth periodically. The movement of the moving plate drives the push plate to move back and forth periodically, so that the finished product packaging can be pushed away from the conveyor belt body at regular intervals. The push plate can synchronously change the pushing timing with the adjustment of the rotation speed of the conveyor belt body, resulting in high pushing efficiency.

[0017] This invention features a material-blocking mechanism. As the pusher moves forward, it can also drive the baffle plate downward, thereby preventing the finished product packaging from continuing to move with the rotation of the conveyor belt during the material pushing process, thus improving the convenience of the pusher plate in pushing materials. Attached Figure Description

[0018] Figure 1 This is a front view of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the front view sectional structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the back of the main structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled transmission mechanism of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 100. Mounting bracket; 101. First mounting plate; 102. Second mounting plate;

[0024] 200. Conveying mechanism; 201. Speed-regulating motor; 202. First rotating shaft; 203. Second rotating shaft; 204. First conveyor roller; 205. Second conveyor roller; 206. Conveyor belt body;

[0025] 300. Top slab; 301. Support column;

[0026] 400. Push plate;

[0027] 500. Transmission mechanism; 501. First rotating rod; 502. Synchronous belt; 503. Second rotating rod; 504. First bevel gear; 505. Second bevel gear; 506. Third rotating rod; 507. Disc; 508. Insert rod; 509. Moving plate; 510. First guide rod; 511. Fixed plate; 512. Driving gear; 513. Driven gear;

[0028] 600, Material stop mechanism; 601, Material stop plate; 602, Second guide rod; 603, Connecting plate. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Please see the appendix Figures 1 to 3 As shown, this utility model provides an adjustable speed finished product packaging conveyor belt, including: a mounting frame 100, a transmission mechanism 500 and a material blocking mechanism 600. The mounting frame 100 includes a first mounting plate 101 and a second mounting plate 102. Symmetrical support rods are fixedly provided on the bottom surfaces of both the first mounting plate 101 and the second mounting plate 102.

[0034] In a preferred embodiment, please refer to Figures 1 to 3A conveying mechanism 200 is provided between the first mounting plate 101 and the second mounting plate 102. The conveying mechanism 200 consists of a speed-regulating motor 201, a first rotating shaft 202, a second rotating shaft 203, a first conveying roller 204, a second conveying roller 205, and a conveyor belt body 206. The speed-regulating motor 201 is fixedly mounted on the front of the first mounting plate 101. The output end of the speed-regulating motor 201 passes through the first mounting plate 101 and is rotatably connected to the first mounting plate 101. The first rotating shaft 202 is fixedly provided at the end of the output end of the speed-regulating motor 201. Shaft 202 passes through the second mounting plate 102 and is rotatably connected to the second mounting plate 102. A second rotating shaft 203 is rotatably connected between the first mounting plate 101 and the second mounting plate 102 via a bearing. A first conveyor roller 204 and a second conveyor roller 205 are respectively provided through the outer sides of the first rotating shaft 202 and the second rotating shaft 203. The first rotating shaft 202 is fixedly connected to the first conveyor roller 204, and the second rotating shaft 203 is fixedly connected to the second conveyor roller 205. A conveyor belt body 206 is sleeved on the outer sides of the first conveyor roller 204 and the second conveyor roller 205.

[0035] In this embodiment, the finished product packaging is placed equidistantly on the top surface of the conveyor belt body 206. The speed-regulating motor 201 is controlled to drive the first rotating shaft 202 to rotate. The rotation of the first rotating shaft 202 drives the first conveyor roller 204 to rotate. The rotation of the first conveyor roller 204 drives the conveyor belt body 206 to rotate. The rotation of the conveyor belt body 206 drives the second conveyor roller 205 and the second rotating shaft 203 to rotate, thereby driving the finished product packaging to move. The moving speed of the finished product packaging can be adjusted by controlling the speed-regulating motor 201 to change the rotation speed of the first rotating shaft 202.

[0036] In a preferred embodiment, please refer to Figures 1 to 3 A top plate 300 is provided above the mounting frame 100. Support columns 301 are fixedly provided at the four corners of the bottom of the top plate 300. The top surfaces of the first mounting plate 101 and the second mounting plate 102 are fixedly connected to the support columns 301. A push plate 400 is provided above the mounting frame 100. A notch is provided at the top of the first mounting plate 101. A material discharge channel is connected to the front of the first mounting plate 101 through the notch. The periodic back-and-forth movement of the push plate 400 can drive the finished product packaging on the conveyor belt body 206 to move forward and be discharged outward along the notch and the material discharge channel.

[0037] In a preferred embodiment, please refer to Figures 1 to 4A transmission mechanism 500 is provided on the top of the push plate 400. The transmission mechanism 500 consists of a first rotating rod 501, a synchronous belt 502, a second rotating rod 503, a first bevel gear 504, a second bevel gear 505, a third rotating rod 506, a disc 507, a plug rod 508, a moving plate 509, a first guide rod 510, a fixed plate 511, a driving gear 512, and a driven gear 513. The first rotating rod 501 is fixedly installed at the end of the first rotating shaft 202 away from the speed regulating motor 201. The driving gear 512 is passed through the outer side of the first rotating rod 501. The synchronous belt 502 meshes with the outer side of the driving gear 512, and the inner side of the synchronous belt 502 meshes with the driving gear 502. There is a driven gear 513, and a second rotating rod 503 is provided through the front of the driven gear 513. A first bevel gear 504 is fixedly provided on the front of the second rotating rod 503. A third rotating rod 506 is rotatably connected to the bottom of the top plate 300 through a bearing. A second bevel gear 505 is provided through the outer side of the third rotating rod 506. A disc 507 is fixedly provided on the bottom surface of the third rotating rod 506. An insert rod 508 is fixedly provided on the bottom surface of the disc 507. Two sets of symmetrical fixed plates 511 are fixedly provided on the bottom surface of the top plate 300. A first guide rod 510 is fixedly provided on the side of the fixed plates 511 that are close to each other. A movable plate 509 is provided through the outer side of the first guide rod 510.

[0038] In this embodiment, the first rotating rod 501 is fixedly connected to the driving gear 512, the second rotating rod 503 is fixedly connected to the driven gear 513, a symmetrical support plate is provided through the outer side of the second rotating rod 503, the second rotating rod 503 is rotatably connected to the support plate, the driven gear 513 and the first bevel gear 504 are rotatably connected to the support plate respectively, the first bevel gear 504 and the second bevel gear 505 mesh, the second bevel gear 505 is fixedly connected to the third rotating rod 506, the moving plate 509 is slidably connected to the first guide rod 510, the top surface of the moving plate 509 is provided with a transverse groove adapted to the insertion rod 508, the insertion rod 508 extends into the interior of the moving plate 509 through the transverse groove and is movably connected to the moving plate 509, and the bottom surface of the moving plate 509 is fixedly connected to the push plate 400.

[0039] In this embodiment, while controlling the speed-regulating motor 201 to drive the transmission belt body 206 to rotate, it can also drive the first rotating rod 501 to rotate. The rotation of the first rotating rod 501 drives the driving gear 512 to rotate, the rotation of the driving gear 512 drives the synchronous belt 502 to rotate, the rotation of the synchronous belt 502 drives the driven gear 513 to rotate, the rotation of the driven gear 513 drives the second rotating rod 503 to rotate, the rotation of the second rotating rod 503 drives the first bevel gear 504 to rotate, the rotation of the first bevel gear 504 drives the second bevel gear 505 to rotate, and the rotation of the second bevel gear 505 drives the second bevel gear 505 to rotate. The rotating rod 506, disc 507, and insert rod 508 rotate. As the insert rod 508 rotates, it moves inside the transverse groove of the moving plate 509, thereby causing the moving plate 509 to move back and forth periodically. The movement of the moving plate 509 causes the push plate 400 to move back and forth periodically, thus periodically pushing the finished product packaging away from the conveyor belt body 206. When the rotation speed of the conveyor belt body 206 increases, the pushing frequency of the push plate 400 increases. The push plate 400 can synchronously change the pushing timing with the adjustment of the rotation speed of the conveyor belt body 206, resulting in high pushing efficiency.

[0040] In a preferred embodiment, please refer to Figures 1 to 3 A baffle mechanism 600 is provided above the conveying mechanism 200. The baffle mechanism 600 consists of a baffle plate 601, a second guide rod 602, and a connecting plate 603. A baffle plate 601 is provided between the conveyor belt body 206 and the top plate 300. Symmetrical connecting plates 603 are hinged to the left and right sides of the baffle plate 601. The other end of the connecting plate 603 is hinged to the bottom surface of the moving plate 509. The top surfaces of the first mounting plate 101 and the second mounting plate 102 are both fixedly provided with the second guide rod 602. The second guide rod 602 passes through the baffle plate 601 and is slidably connected to the baffle plate 601.

[0041] In this embodiment, as the pusher plate 400 moves forward, it can drive the connecting plate 603 to rotate. The rotation of the connecting plate 603 drives the baffle plate 601 to move downward. During the forward movement of the pusher plate 400, the finished package contacts the baffle plate 601 and then contacts the pusher plate 400. The pusher plate 400 pushes the finished package forward. When the distance the pusher plate 400 moves forward reaches its maximum, the finished package moves along the notch of the first mounting plate 101 to the unloading channel and is discharged outward. At this time, the baffle plate 601 moves to the lowest position, and the pusher plate 400 begins to move backward and drives the baffle plate 601 to move upward until both the pusher plate 400 and the baffle plate 601 have moved to their original positions. The periodic back-and-forth movement of the pusher plate 400 can drive the baffle plate 601 to move up and down periodically, thereby preventing the finished package from continuing to move with the rotation of the conveyor belt body 206 during the pushing process, and improving the convenience of the pusher plate 400 in pushing the package.

[0042] The working principle of this utility model is as follows:

[0043] In use, the finished product packages are placed equidistantly on the top surface of the conveyor belt body 206. The speed-regulating motor 201 drives the first rotating shaft 202 to rotate, which in turn drives the first conveyor roller 204 to rotate. The first conveyor roller 204 then drives the conveyor belt body 206 to rotate, which in turn drives the second conveyor roller 205 and the second rotating shaft 203 to rotate, thus moving the finished product packages. The speed of the finished product packages can be adjusted by changing the rotation speed of the first rotating shaft 202 using the speed-regulating motor 201. Simultaneously, the speed-regulating motor 201 drives the conveyor belt body 206 to rotate, thereby moving the finished product packages. The first rotating rod 501 rotates, driving the drive gear 512 to rotate. The drive gear 512 then drives the synchronous belt 502 to rotate, which in turn drives the driven gear 513 to rotate. The driven gear 513 then drives the second rotating rod 503 to rotate, which in turn drives the first bevel gear 504 to rotate. The first bevel gear 504 then drives the second bevel gear 505 to rotate, which in turn drives the third rotating rod 506, the disc 507, and the insert rod 508 to rotate. Simultaneously, the insert rod 508 rotates and moves within the transverse groove of the moving plate 509, thereby causing the moving plate 509 to rotate. The moving plate 509 moves periodically back and forth, causing the push plate 400 to move periodically back and forth. As the push plate 400 moves forward, it also drives the connecting plate 603 to rotate. The rotation of the connecting plate 603 causes the baffle plate 601 to move downwards. During the forward movement of the push plate 400, the finished package contacts the baffle plate 601 and then the push plate 400. The push plate 400 pushes the finished package forward. When the push plate 400 reaches its maximum forward distance, the finished package moves along the notch of the first mounting plate 101 onto the unloading channel and is discharged outwards. At this time, the baffle plate 601 moves to its lowest position, and the push plate 400 begins to move backwards. The pusher plate 400 moves the baffle plate 601 upward until both the pusher plate 400 and the baffle plate 601 are in their original positions. The periodic back-and-forth movement of the pusher plate 400 can cause the baffle plate 601 to move up and down periodically, thereby periodically pushing the finished package away from the conveyor belt body 206. The baffle plate 601 can prevent the finished package from continuing to move with the rotation of the conveyor belt body 206 during the pushing process, improving the convenience of the pusher plate 400 in pushing the material. When the rotation speed of the conveyor belt body 206 increases, the pushing frequency of the pusher plate 400 increases. The pusher plate 400 can synchronously change the pushing timing with the adjustment of the rotation speed of the conveyor belt body 206, resulting in high pushing efficiency.

[0044] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A variable speed finished product packaging conveyor belt characterized by: include: Mounting frame (100), the mounting frame (100) includes a first mounting plate (101) and a second mounting plate (102), a conveying mechanism (200) is provided between the first mounting plate (101) and the second mounting plate (102), and a push plate (400) is provided above the mounting frame (100). A transmission mechanism (500) is provided on the top of the push plate (400). The transmission mechanism (500) is used to drive the push plate (400) to move and push the material while the conveying mechanism (200) conveys the finished product packaging. A material blocking mechanism (600) is disposed above the conveying mechanism (200). The material blocking mechanism (600) is used to prevent the finished package from moving with the conveying mechanism (200) during the pushing of the pusher plate (400).

2. A variable speed finished product packaging conveyor belt according to claim 1, wherein: The conveying mechanism (200) includes a speed-regulating motor (201), a first rotating shaft (202), a second rotating shaft (203), a first conveying roller (204), a second conveying roller (205), and a conveyor belt body (206). The speed-regulating motor (201) is fixedly mounted on the front of the first mounting plate (101). The output end of the speed-regulating motor (201) passes through the first mounting plate (101) and is rotatably connected to the first mounting plate (101). The first rotating shaft (202) is fixedly provided at the end of the output end of the speed-regulating motor (201). The first rotating shaft (202) passes through the second mounting plate (102). The first mounting plate (101) and the second mounting plate (102) are rotatably connected. A second rotating shaft (203) is rotatably connected between the first mounting plate (101) and the second mounting plate (102) via a bearing. A first conveyor roller (204) and a second conveyor roller (205) are respectively provided through the outer sides of the first rotating shaft (202) and the second rotating shaft (203). The first rotating shaft (202) is fixedly connected to the first conveyor roller (204), and the second rotating shaft (203) is fixedly connected to the second conveyor roller (205). A conveyor belt body (206) is sleeved on the outer side of the first conveyor roller (204) and the second conveyor roller (205).

3. A variable speed finished product packaging conveyor belt according to claim 2, wherein: A top plate (300) is provided above the mounting bracket (100), and support columns (301) are fixedly provided at the four corners of the bottom of the top plate (300). The top surfaces of the first mounting plate (101) and the second mounting plate (102) are fixedly connected to the support columns (301).

4. A variable speed finished product packaging conveyor belt according to claim 3, wherein: The transmission mechanism (500) includes a first rotating rod (501), a synchronous belt (502), a second rotating rod (503), a first bevel gear (504), a second bevel gear (505), a third rotating rod (506), a disc (507), a plug rod (508), a moving plate (509), a first guide rod (510), a fixed plate (511), a driving gear (512), and a driven gear (513). The first rotating rod (501) is fixedly installed at the end of the first rotating shaft (202) away from the speed regulating motor (201). The driving gear (512) is installed through the outer side of the first rotating rod (501). The synchronous belt (502) meshes with the outer side of the driving gear (512), and the driven gear (513) meshes with the inner side of the synchronous belt (502). The driven gear (513) has a second rotating rod (503) through its front end. The second rotating rod (503) has a first bevel gear (504) fixedly installed on its front end. The bottom of the top plate (300) is rotatably connected to a third rotating rod (506) via a bearing. The third rotating rod (506) has a second bevel gear (505) through its outer side. The bottom surface of the third rotating rod (506) has a disk (507) fixedly installed. The bottom surface of the disk (507) has a plug rod (508) fixedly installed. The bottom surface of the top plate (300) has two sets of symmetrical fixed plates (511) fixedly installed. The fixed plates (511) have a first guide rod (510) fixedly installed on the side that is close to each other. The outer side of the first guide rod (510) has a moving plate (509) through its outer side.

5. A variable speed finished product packaging conveyor belt according to claim 4, wherein: The first rotating rod (501) is fixedly connected to the driving gear (512), the second rotating rod (503) is fixedly connected to the driven gear (513), the first bevel gear (504) meshes with the second bevel gear (505), the second bevel gear (505) is fixedly connected to the third rotating rod (506), the moving plate (509) is slidably connected to the first guide rod (510), the top surface of the moving plate (509) is provided with a transverse groove for fitting the insertion rod (508), the insertion rod (508) extends into the interior of the moving plate (509) through the transverse groove and is movably connected to the moving plate (509), and the bottom surface of the moving plate (509) is fixedly connected to the push plate (400).

6. A variable speed finished product packaging conveyor belt according to claim 5, wherein: The baffle mechanism (600) includes a baffle plate (601), a second guide rod (602), and a connecting plate (603). The baffle plate (601) is provided between the conveyor belt body (206) and the top plate (300). Symmetrical connecting plates (603) are hinged to the left and right sides of the baffle plate (601). The other end of the connecting plate (603) is hinged to the bottom surface of the moving plate (509). The top surfaces of the first mounting plate (101) and the second mounting plate (102) are both fixedly provided with the second guide rod (602). The second guide rod (602) passes through the baffle plate (601) and is slidably connected to the baffle plate (601).

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