Jacking mechanism and conveying device

Abstract

The utility model discloses a jacking mechanism and a conveying device, the jacking mechanism is suitable for jacking materials to enable the materials to be separated from a conveying belt, the conveying belt drives the materials on the conveying belt in the first direction, and the jacking mechanism comprises a connecting plate, a jacking plate, a blocking plate and a driving piece. The jacking plate is fixedly connected with the connecting plate, the blocking plate is installed on the connecting plate, and the connecting plate is used for installing the jacking plate and the blocking plate so that the jacking plate, the blocking plate and the connecting plate can be jacked by the driving piece together. The driving part is suitable for driving the connecting plate or the jacking plate or the blocking plate to ascend and descend so as to drive the other two to ascend and descend synchronously, so that the jacking plate and the blocking plate are higher than or lower than the conveying belt, when the jacking plate is higher than the conveying belt, the materials are separated from the conveying belt, and when the jacking plate is lower than the conveying belt, the materials are allowed to be conveyed on the conveying belt. The blocking plate is suitable for adjusting the distance between the blocking plate and the jacking plate in the first direction and the direction opposite to the first direction, so that the blocking position is changed, the distance between the blocking position and the working position can be adjusted to a certain degree, and interference is avoided.

Description

Technical Field

[0001] The utility model relates to the field of transfer mechanisms, in particular to a lifting mechanism and a conveying device. Background Art

[0002] In the prior art, materials at a workstation are usually lifted by a lifting plate to remove them from a conveyor belt for inspection or processing. To increase work efficiency, after the lifting plate removes the materials from the conveyor belt, the conveyor belt continues to work to transport other materials on the conveyor belt. The next material to be inspected is blocked by the lifting plate and stops being transported forward. To prevent interference, when the blocked material to be inspected reaches the workstation, the material at the workstation needs to move forward to a position away from the lifting plate to prevent the next lifting plate from lifting the processed material. Therefore, the length of the lifting plate will be determined according to the length of the material. However, this only applies to materials of the same length. Materials of different lengths may still experience the above-mentioned interference. It is necessary to customize the lifting plate for each material of different lengths, which is costly. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems in the background technology and to provide a lifting mechanism and a conveying device.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Solution 1: A lifting mechanism, which is suitable for lifting materials at a working position to remove the materials from a conveyor belt, wherein the conveyor belt transmits the materials thereon in a first direction, comprising:

[0006] Connecting plate,

[0007] a lifting plate fixedly connected to the connecting plate, extending along a first direction, and adapted to lift the material at the working position so as to remove the material from the conveyor belt;

[0008] a blocking plate mounted on the connecting plate, arranged sequentially with the lifting plate along a first direction, and adapted to adjust the distance between the blocking plate and the lifting plate along the first direction and a direction opposite to the first direction;

[0009] A driving member is adapted to drive the connecting plate or the lifting plate or the blocking plate to move up and down, so that the height of the lifting plate and the blocking plate is higher or lower than the conveyor belt.

[0010] Option 2, based on Option 1, further includes a locking piece, the connecting plate is provided with a plurality of threaded holes arranged along the first direction, the blocking plate is provided with a through hole, the locking piece is suitable for passing through the through hole and being screwed to the threaded hole to fix the blocking plate and the connecting plate.

[0011] Solution three, based on solution one, the height of the blocking plate is the same as the height of the lifting plate.

[0012] Solution 4, based on Solution 1, further includes an elastic member, the connecting plate is provided with a driven part, and the two ends of the elastic member act on the driven part and the output end of the driving member respectively.

[0013] Solution 5, based on Solution 4, further includes a bolt, which passes through the driven part and the elastic part and is fixedly connected to the output end of the driving part. The height of the bolt is lower than the height of the lifting plate.

[0014] Option 6, a conveying device, including a conveyor belt and a lifting mechanism as described in any one of Options 1 to 5, wherein the conveyor belt is suitable for transmitting material thereon along a first direction.

[0015] Option seven, based on option six, further includes a frame, the frame is provided with a limiting surface, the limiting surface faces the conveyor belt, and the driving member is suitable for driving the connecting plate to rise so that the lifting plate pushes the material against the limiting surface.

[0016] Option 8, based on Option 6, also includes a sensor and a controller, wherein the sensor is suitable for sending a first signal when sensing the front end of the material, and the controller is suitable for controlling the conveyor belt to advance a preset distance when receiving the first signal so that the material is located in the working position, and when the material is located in the working position, the controller is suitable for controlling the driving member to raise the connecting plate.

[0017] Option nine, based on option six, also includes a controller, which is suitable for controlling the conveyor belt to move forward so that the material is located in the working position. When the material is located in the working position, the controller is suitable for controlling the driving member to raise the connecting plate; when the connecting plate has been raised, the controller is also suitable for controlling the conveyor belt to move forward so that the material to be processed rests against the blocking plate, and the processed material continues to be transmitted.

[0018] Solution 10, based on Solution 9, further includes a blocking mechanism, wherein the lifting plate and the blocking mechanism are arranged in sequence along the first direction, and the blocking mechanism is suitable for moving to prevent the processed material from leaving the conveyor belt.

[0019] From the above description of the present invention and its preferred embodiments, it can be seen that, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0020] 1. A lifting mechanism, which is suitable for lifting materials to separate the materials from a conveyor belt, wherein the conveyor belt transmits the materials thereon in a first direction, comprises a connecting plate, a lifting plate, a blocking plate, and a driving member.

[0021] The lifting plate is fixedly connected to the connecting plate, the blocking plate is installed on the connecting plate, and the connecting plate is used for installing the lifting plate and the blocking plate so that the three can be lifted together by the driving member.

[0022] The lifting plate is suitable for lifting the material at the work position to remove the material from the conveyor belt. The lifting plate extends along the first direction to have a sufficient support area; the blocking plate and the lifting plate are arranged in sequence along the first direction, so that the blocking plate is located in front of the lifting plate to be able to block the material to be processed.

[0023] The driving member is adapted to drive the connection plate, the lifting plate, or the blocking plate to rise and fall, thereby driving the other two to rise and fall synchronously, so that the height of the lifting plate and the blocking plate is higher or lower than the conveyor belt. When the lifting plate is higher than the conveyor belt, the material is removed from the conveyor belt. When the lifting plate is lower than the conveyor belt, the material is allowed to be conveyed on the conveyor belt. When the blocking plate is higher than the conveyor belt, the material to be processed on the conveyor belt is blocked by the blocking plate and cannot move forward. When the blocking plate is lower than the conveyor belt, the material is allowed to be conveyed on the conveyor belt.

[0024] The blocking plate is adapted to adjust its distance from the lifting plate in a first direction and in a direction opposite to the first direction, so that the blocking position changes, thereby being able to adjust the distance between the blocking position and the working position to a certain extent to avoid interference, thereby reducing the number of customizations and reducing costs.

[0025] 2. In the second scheme and its preferred embodiment, the connecting plate is provided with a plurality of threaded holes arranged along the first direction, the blocking plate is provided with through holes, and the locking piece is suitable for passing through the through holes and being screwed to the threaded holes to fix the blocking plate and the connecting plate, thereby realizing the position adjustment and installation of the blocking plate.

[0026] 3. In the third solution and its preferred embodiment, the height of the blocking plate is the same as that of the lifting plate, so that in some cases, the blocking plate can also play the role of lifting materials, and it is flush with the lifting plate and will not cause the materials to tilt.

[0027] 4. In Scheme 4 and its preferred embodiment, the connecting plate is provided with a driven part, and the two ends of the elastic member act on the driven part and the output end of the driving member respectively. Due to the presence of the elastic member, the thrust of the lifting plate when it pushes against the material to be processed is softer, preventing the problem of easily damaging the object to be tested when directly pushing against the material to be processed through the driving member.

[0028] 5. Option 5 and its preferred embodiments further include a bolt that penetrates the driven portion and the elastic member and is fixedly connected to the output end of the driving member. The bolt prevents the spring from detaching. The height of the bolt is lower than that of the lifting plate to prevent the bolt from hitting the material to be processed before the lifting plate when the driving member is actuated, thereby preventing the bolt from damaging the material to be processed.

[0029] 6. In solution six and its preferred embodiment, a conveying device includes a conveyor belt and the above-mentioned lifting mechanism, and the conveyor belt is suitable for transmitting the material thereon along a first direction.

[0030] 7. In the seventh embodiment and its preferred embodiment, the frame is provided with a limit surface facing the conveyor belt. The driving member is adapted to drive the connecting plate upward so that the lifting plate presses the material against the limit surface, thereby clamping the material and stabilizing its position. Furthermore, this embodiment, in conjunction with the elastic member, can increase the clamping force by compressing the elastic member, thereby preventing the problem of insufficient clamping force.

[0031] 8. In the prior art, materials are typically positioned in the working position using a liftable barrier. However, collisions between the materials and the barrier can damage both materials and the barrier, and the barrier can also cause rebound, resulting in inaccurate positioning. A sensor is configured to emit a first signal upon sensing the front end of the material. Upon receiving the first signal, a controller is configured to control the conveyor belt to advance a preset distance to position the material in the working position. When the material is in the working position, the controller is configured to control the drive member to raise the connecting plate, thereby ensuring that the material is positioned in the working position.

[0032] 9. In Option 9 and its preferred embodiment, the controller is suitable for controlling the conveyor belt to advance so that the material is located at the working position. When the material is located at the working position, the controller is suitable for controlling the driving member to raise the connecting plate. When the connecting plate has finished rising, the controller is also suitable for controlling the conveyor belt to advance so that the material to be processed contacts the blocking plate, and the processed material continues to be transported to speed up work efficiency.

[0033] 10. In solution 10 and its preferred embodiment, the lifting plate and the blocking mechanism are arranged in sequence along the first direction, and the blocking mechanism is suitable for moving to prevent the processed materials from leaving the conveyor belt to prevent the materials from falling and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 is a three-dimensional diagram of the conveying device in Example 1;

[0036] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0037] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0038] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0039] Figure 5 Schematic diagram of the use of the conveying device in Example 1.

[0040] Description of main reference numerals:

[0041] Conveyor belt 1; lifting mechanism 2; connecting plate 21; threaded hole 211; driven part 212; lifting plate 22; blocking plate 23; through hole 231; driving member 24; elastic member 25; bolt 26; frame 3; limiting surface 31; blocking mechanism 5; first direction 6; second direction 7. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0044] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific scope of protection of the present invention.

[0045] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through 231 other devices or elements.

[0046] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0047] refer to Figure 1-Figure 5 A conveying device includes a conveyor belt 1, a lifting mechanism 2, a frame 3, a sensor, a controller, and a blocking mechanism 5.

[0048] The frame 3 is used for mounting other components. The frame 3 is provided with a limiting surface 31, and the limiting surface 31 is arranged downward.

[0049] refer to Figure 2 A conveyor belt 1 is mounted on a frame 3 and is adapted to transport material thereon, such as electronic boards, along a first direction 6. In this embodiment, two conveyor belts 1 are provided, spaced apart along a second direction 7 perpendicular to the first direction 6. A limiting surface 31 is provided corresponding to the conveyor belts 1 and faces the conveyor belts 1.

[0050] refer to Figure 2 、 Figure 3 The lifting mechanism 2 is suitable for lifting materials to separate the materials from the conveyor belt 1. The lifting mechanism 2 includes a connecting plate 21, a lifting plate 22, a blocking plate 23, a driving member 24, a locking member, an elastic member 25 and a bolt 26.

[0051] The connecting plate 21 is used to install the lifting plate 22 and the blocking plate 23 so that the three can be lifted together by the driving member 24. The connecting plate 21 is provided with a plurality of threaded holes 211 arranged along the first direction 6. The connecting plate 21 is also provided with a driven portion 212.

[0052] The lifting plate 22 is fixedly connected to the connecting plate 21 . The two can be formed as one piece or assembled after being processed separately. The lifting plate 22 extends along the first direction 6 and is suitable for supporting an object.

[0053] The blocking plate 23 is mounted on the connecting plate 21. The blocking plate 23 and the lifting plate 22 are arranged sequentially along the first direction 6, i.e., the blocking plate 23 is located in front of the lifting plate 22. The height of the blocking plate 23 is the same as that of the lifting plate 22. The blocking plate 23 is adapted to adjust the distance between the blocking plate 23 and the lifting plate 22 along the first direction 6 and the direction opposite to the first direction 6. Specifically, the blocking plate 23 is provided with a through hole 231. After the position of the blocking plate 23 is adjusted, a locking member passes through the through hole 231 and screws into the threaded hole 211 to secure the blocking plate 23 to the connecting plate 21.

[0054] The driving member 24 is adapted to drive the connection plate 21, the lifting plate 22, or the blocking plate 23 to rise and fall, thereby driving the other two to rise and fall synchronously, so that the height of the lifting plate 22 and the blocking plate 23 is higher or lower than the conveyor belt 1. In this embodiment, taking the driving member 24 driving the connection plate 21 to rise and fall as an example, the driving member 24 is adapted to drive the connection plate 21 to rise so that the lifting plate 22 presses the material against the limiting surface 31.

[0055] The upper and lower ends of the elastic member 25 act on the driven portion 212 and the output end of the driving member 24 respectively.

[0056] The bolt 26 passes through the driven portion 212 and the elastic member 25 and is fixedly connected to the output end of the driving member 24 . The height of the bolt 26 is lower than the height of the lifting plate 22 .

[0057] The sensor is adapted to send out a first signal when sensing the front end of the material, and the sensor may be located at the rear side of the blocking member.

[0058] The controller is adapted to control the conveyor belt 1 to advance a preset distance upon receiving a first signal so that the material is located at the working position. The preset distance can be determined by a pre-entered material length, such as a preset distance equal to half the material length so that the center of the material can correspond to the working position. Of course, the preset distance can be 0. When the controller receives the first signal, it controls the conveyor belt 1 to stop. When the material is located at the working position, the controller controls the drive member 24 to raise the connecting plate 21, so that the material is separated from the conveyor belt 1 and abuts the limit surface 31. With the cooperation of other mechanisms, detection, processing, transfer, etc. are achieved. When the connecting plate 21 has finished rising, the controller controls the conveyor belt 1 to advance so that the material to be processed abuts the blocking plate 23, and the processed material continues to be transported. When the material at the working position completes the corresponding work, the connecting plate 21 is lowered, and the material falls back onto the conveyor belt 1.

[0059] refer to Figure 4 The lifting plate 22 and the blocking mechanism 5 are arranged in sequence along the first direction 6. The blocking mechanism 5 is located on the rear side of the lifting plate 22. The blocking mechanism 5 is suitable for moving to prevent the processed materials from leaving the conveyor belt 1. For example, the blocking mechanism 5 can be raised or lowered by 231 or extended to be higher than the conveyor belt 1, or enter the transfer path of the conveyor belt 1 to block the materials.

[0060] Working process: According to the length of the material, the position of the blocking plate 23 is adjusted so that when the material to be processed moves from the position blocked by the blocking plate 23 to the working position, the material on the working position can move forward to the working area away from the lifting plate 22.

[0061] refer to Figure 5, the process begins. The material to be processed advances under the action of conveyor belt 1. When the sensor senses the front end of the material, it emits a first signal. Upon receiving this first signal, the controller controls conveyor belt 1 to advance a preset distance, bringing the material to the working position, and then stops. It then controls drive member 24 to raise connecting plate 21, causing the material to disengage from conveyor belt 1 and abut against limit surface 31, thus initiating detection. Simultaneously, during the material detection process, the controller controls conveyor belt 1 to advance, and the next material to be processed continues to advance until the next material to be processed abuts against the front end of blocking plate 23.

[0062] After the inspection is complete, the driver 24 is controlled to lower the connecting plate 21, allowing the material to fall back onto the conveyor belt 1. The conveyor belt 1 continues to move, and the material to be processed moves from the position blocked by the blocking plate 23 to the working position. The processed material continues to move to exit the working area of ​​the lifting plate 22, and the above steps are repeated. If the processed material is not removed after leaving the working area of ​​the lifting plate 22, it will be blocked by the blocking mechanism 5.

[0063] Compared with the prior art, this embodiment has the following beneficial effects:

[0064] In an exemplary embodiment, a lifting mechanism 2 is provided, which is suitable for lifting materials to remove them from a conveyor belt 1 , and the conveyor belt 1 transmits the materials thereon along a first direction 6 , and includes a connecting plate 21 , a lifting plate 22 , a blocking plate 23 , and a driving member 24 .

[0065] The lifting plate 22 is fixedly connected to the connecting plate 21 , and the blocking plate 23 is installed on the connecting plate 21 . The connecting plate 21 is used for installing the lifting plate 22 and the blocking plate 23 so that the three can be lifted together by the driving member 24 .

[0066] The lifting plate 22 is suitable for lifting the material at the working position to separate the material from the conveyor belt 1. The lifting plate 22 extends along the first direction 6 to have a sufficient support area; the blocking plate 23 and the lifting plate 22 are arranged in sequence along the first direction 6, so that the blocking plate 23 is located on the front side of the lifting plate 22 to be able to block the material to be processed.

[0067] The driving member 24 is adapted to drive the connection plate 21, the lifting plate 22, or the blocking plate 23 to rise and fall, thereby driving the other two to rise and fall synchronously, so that the height of the lifting plate 22 and the blocking plate 23 is higher or lower than the conveyor belt 1. When the height of the lifting plate 22 is higher than the conveyor belt 1, the material is separated from the conveyor belt 1. When the height of the lifting plate 22 is lower than the conveyor belt 1, the material is allowed to be conveyed on the conveyor belt 1. When the height of the blocking plate 23 is higher than the conveyor belt 1, the material to be processed on the conveyor belt 1 is blocked by the blocking plate 23 and cannot move forward. When the height of the blocking plate 23 is lower than the conveyor belt 1, the material is allowed to be conveyed on the conveyor belt 1.

[0068] The blocking plate 23 is adapted to adjust its distance from the lifting plate 22 along the first direction 6 and the direction opposite to the first direction 6, so that the blocking position changes, thereby being able to adjust the distance between the blocking position and the working position to a certain extent to avoid interference, thereby reducing the number of customizations and reducing costs.

[0069] In an exemplary embodiment, the connecting plate 21 is provided with a plurality of threaded holes 211 arranged along the first direction 6, and the blocking plate 23 is provided with a through hole 231. The locking piece is suitable for passing through the through hole 231 and being screwed to the threaded hole 211 to fix the blocking plate 23 and the connecting plate 21, thereby realizing the position adjustment and installation of the blocking plate 23.

[0070] In an exemplary embodiment, the height of the blocking plate 23 is the same as that of the lifting plate 22, so that in some cases, the blocking plate 23 can also play a role in lifting materials, and it is flush with the lifting plate 22 and will not cause the materials to tilt.

[0071] In an exemplary embodiment, the connecting plate 21 is provided with a driven portion 212, and the two ends of the elastic member 25 act on the driven portion 212 and the output end of the driving member 24 respectively. Due to the presence of the elastic member 25, the thrust of the lifting plate 22 when it pushes against the material to be processed is softer, preventing the problem of easily damaging the object to be tested when directly pushing against the material to be processed through the driving member 24 231.

[0072] In one exemplary embodiment, a bolt 26 is further included. The bolt 26 passes through the driven portion 212 and the elastic member 25 and is then fixed to the output end of the driver 24. The bolt 26 is secured by 231 to prevent the spring from detaching. The height of the bolt 26 is lower than that of the lifting plate 22 to prevent the bolt 26 from hitting the material to be processed before the lifting plate 22 when the driver 24 is driven, thereby preventing the bolt 26 from damaging the material to be processed.

[0073] In an exemplary embodiment, a conveying device includes a conveyor belt 1 and the above-mentioned lifting mechanism 2, and the conveyor belt 1 is suitable for transmitting materials thereon along a first direction 6.

[0074] In one exemplary embodiment, the frame 3 is provided with a stop surface 31 facing the conveyor belt 1. The driver 24 is adapted to drive the connecting plate 21 upward, causing the lifting plate 22 to press the material against the stop surface 31, thereby clamping the material and stabilizing its position. Furthermore, this arrangement, in conjunction with the elastic member 25, can compress the elastic member 25 via 231 to increase the clamping force, preventing the problem of insufficient clamping force.

[0075] In one exemplary embodiment, in the prior art, a liftable barrier 231 is typically used to position the material in the working position. However, the material may collide with the barrier, causing damage to both the material and the barrier, and may also cause rebound, resulting in inaccurate positioning. Sensor 231 is adapted to emit a first signal upon sensing the front end of the material. Upon receiving the first signal, a controller is adapted to control conveyor belt 1 to advance a preset distance to position the material in the working position. When the material is in the working position, the controller is adapted to control drive member 24 to raise connecting plate 21, thereby ensuring that the material is in the working position.

[0076] In an exemplary embodiment, the controller is suitable for controlling the conveyor belt 1 to advance so that the material is located at the working position. When the material is located at the working position, the controller is suitable for controlling the driving member 24 to raise the connecting plate 21. When the connecting plate 21 has been raised, the controller is also suitable for controlling the conveyor belt 1 to advance so that the material to be processed rests against the blocking plate 23, and the processed material continues to be transmitted to speed up work efficiency.

[0077] In an exemplary embodiment, the lifting plate 22 and the blocking mechanism 5 are arranged in sequence along the first direction 6. The blocking mechanism 5 is adapted to move to block the processed material from leaving the conveyor belt 1 to prevent the material from falling and being damaged.

[0078] The descriptions in the above specification and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A lifting mechanism (2) adapted to lift material at a working position to remove the material from a conveyor belt (1), wherein the conveyor belt (1) transports the material thereon in a first direction (6), characterized in that: include Connecting plate (21), A lifting plate (22) is fixedly connected to the connecting plate (21), extends along a first direction (6), and is suitable for lifting materials at a working position so as to separate the materials from the conveyor belt (1); a blocking plate (23) mounted on the connecting plate (21), arranged in sequence with the lifting plate (22) along a first direction (6), and adapted to adjust the distance between the blocking plate (23) and the lifting plate (22) along the first direction (6) and the opposite direction of the first direction (6); A driving member (24) is adapted to drive the connecting plate (21) or the lifting plate (22) or the blocking plate (23) to rise and fall, so that the height of the lifting plate (22) and the blocking plate (23) is higher or lower than that of the conveyor belt (1).

2. A lifting mechanism (2) according to claim 1, characterized in that: The invention also includes a locking piece, wherein the connecting plate (21) is provided with a plurality of threaded holes (211) arranged along a first direction (6), the blocking plate (23) is provided with a through hole (231), and the locking piece is suitable for passing through the through hole (231) and being screwed to the threaded hole (211) to fix the blocking plate (23) and the connecting plate (21).

3. A lifting mechanism (2) according to claim 1, characterized in that: The height of the blocking plate (23) is the same as the height of the lifting plate (22).

4. A lifting mechanism (2) according to claim 1, characterized in that: It also includes an elastic member (25), the connecting plate (21) is provided with a driven portion (212), and two ends of the elastic member (25) act on the driven portion (212) and the output end of the driving member (24) respectively.

5. A lifting mechanism (2) according to claim 4, characterized in that: It also includes a bolt (26), which passes through the driven part (212) and the elastic part (25) and is fixedly connected to the output end of the driving part (24). The height of the bolt (26) is lower than the height of the lifting plate (22).

6. A conveying device, characterized in that: The invention comprises a conveyor belt (1) and a lifting mechanism (2) according to any one of claims 1 to 5, wherein the conveyor belt (1) is suitable for transmitting material thereon along a first direction (6).

7. A conveying device according to claim 6, characterized in that: The machine frame (3) is provided with a limiting surface (31), the limiting surface (31) faces the conveyor belt (1), and the driving member (24) is suitable for driving the connecting plate (21) to rise so that the lifting plate (22) pushes the material against the limiting surface (31).

8. A conveying device according to claim 6, characterized in that: It also includes a sensor and a controller, wherein the sensor is suitable for sending a first signal when sensing the front end of the material, and the controller is suitable for controlling the conveyor belt (1) to advance a preset distance when receiving the first signal so that the material is located at the working position, and when the material is located at the working position, the controller is suitable for controlling the driving member (24) to raise the connecting plate (21).

9. A conveying device according to claim 6, characterized in that: The invention also includes a controller, which is suitable for controlling the conveyor belt (1) to advance so that the material is located at the working position. When the material is located at the working position, the controller is suitable for controlling the driving member (24) to raise the connecting plate (21); when the connecting plate (21) has finished rising, the controller is further suitable for controlling the conveyor belt (1) to advance so that the material to be processed abuts against the blocking plate (23), and the processed material continues to be transported.

10. A conveying device according to claim 9, characterized in that: It also includes a blocking mechanism (5), wherein the lifting plate (22) and the blocking mechanism (5) are arranged in sequence along a first direction (6), and the blocking mechanism (5) is suitable for moving to prevent processed materials from leaving the conveyor belt (1).

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