Stack storage conveyor for trademark paper

Abstract

The utility model belongs to tobacco machinery technical field discloses trademark paper stack storage conveying device. In trademark paper stack storage conveying device, first conveying belt and second conveying belt are spaced apart and set on the frame along the vertical direction, all extend along the horizontal direction and can support and store trademark paper stack, first conveying belt is set on the top of second conveying belt, is used for conveying trademark paper stack to the right, and second conveying belt is used for conveying trademark paper stack to the left, lifting drive mechanism is set on the frame, the first paper supporting seat can support trademark paper stack, when lifting drive mechanism drives the first paper supporting seat to ascend to the output end of first conveying belt, the first trademark paper stack that is conveyed to the output end on first conveying belt is received, when lifting drive mechanism drives the first paper supporting seat to move downwards to the input end of second conveying belt, second conveying belt receives and conveys the trademark paper stack in the first paper supporting seat. Trademark paper stack storage conveying device reduces manual adding frequency, reduces equipment accident and product quality risk, and improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machinery technology, and in particular to a label paper stacking and conveying device. Background Technology

[0002] Hard-pack packaging machines are automated devices used in the tobacco machinery industry to package cigarettes into hard-shell packaging boxes. They can complete a series of packaging processes such as box forming, product loading, and sealing, and are the core equipment for achieving large-scale production of hard-pack products. Label paper stacks, which are neatly stacked sheets of paper printed with product logos and brand information, are a key raw material for hard-pack packaging machines. They are precisely supplied to the packaging station via conveyor belt and ultimately adhered to the surface of the hard box, realizing the product's brand identification and aesthetic decoration functions.

[0003] Currently, existing rigid box packaging machines require manual addition of label paper stacks to the conveyor belt during operation. Only seventeen stacks can be loaded at a time, and they need to be refilled approximately every twenty-five minutes. This frequent addition of label paper stacks interferes with other tasks for the operators. Operators also need to add strip box paper stacks, replace inner lining paper, inner frame paper, box pull cord rolls, small box transparent paper rolls, strip transparent paper rolls, and pull cord rolls. The large volume of raw and auxiliary materials added, especially label paper stacks, leaves operators with little time to monitor equipment status and inspect product quality. This not only reduces production efficiency but also poses significant product quality risks and equipment malfunction risks.

[0004] Therefore, there is an urgent need for a label paper stacking and conveying device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a label paper stack storage and conveying device, which saves operators time in adding label paper stacks, ensures that operators can free up time to observe equipment and product quality, effectively reduces equipment accidents and product quality risks, and also reduces the labor intensity of operators.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A label paper stack storage and conveying device, comprising:

[0008] frame;

[0009] A first conveyor belt and a second conveyor belt are arranged vertically at intervals on the frame. Both extend horizontally and are capable of holding and storing stacks of trademark paper. The first conveyor belt is located above the second conveyor belt and is configured to convey the stack of trademark paper to the right along the horizontal direction. The second conveyor belt is configured to convey the stack of trademark paper to the left along the horizontal direction.

[0010] The machine includes a lifting drive mechanism and a first paper holder. The lifting drive mechanism is mounted on the frame. The first paper holder can hold the stack of trademark paper. The lifting drive mechanism is configured to drive the first paper holder to reciprocate up and down in the vertical direction. When the first paper holder rises to the right output end of the first conveyor belt, it can receive the first stack of trademark paper that is conveyed from left to right to its output end on the first conveyor belt. When the first paper holder moves down to the right input end of the second conveyor belt, the second conveyor belt can receive and convey the stack of trademark paper in the first paper holder to the left.

[0011] As an optional solution for a trademark paper stack storage and conveying device, the lifting drive mechanism includes:

[0012] The lead screw extends along the vertical direction and is located to the right of the right output end of the first conveyor belt and the right input end of the second conveyor belt. The drive is fixed on the frame and its output end is connected to the lead screw. The drive can drive the lead screw to rotate around its own axis.

[0013] The moving part is threadedly connected to the lead screw, and the slide rail is fixed on the frame and extends along the vertical direction, slidingly engaging with the moving part and guiding the movement of the moving part along the vertical direction. The first paper holder is mounted on the moving part on the side facing the first conveyor belt and the second conveyor belt. When the lead screw rotates, the moving part can move along the slide rail so that the first paper holder moves up and down synchronously along the vertical direction.

[0014] As an optional solution for a trademark paper stack storage and conveying device, the moving part is provided with a groove extending in the vertical direction, the slide rail passes through the groove and forms a sliding fit with the groove, and two limiting protrusions are symmetrically provided on the outer edge of the groove opening side to restrict the slide rail from leaving the groove and to laterally limit the moving part, thus constraining the movement of the moving part in the vertical direction.

[0015] As an optional solution for a trademark paper stacking and conveying device, the lifting drive mechanism also includes a flexible coupling, the drive component is a servo motor, and the end of the lead screw is connected to the output end of the servo motor through the flexible coupling.

[0016] As an alternative solution for a trademark paper stack storage and conveying device, the trademark paper stack storage and conveying device further includes a second paper holder, which is located on the left side of the left output end of the second conveyor belt and is configured to receive the first trademark paper stack conveyed from right to left to its output end on the second conveyor belt and transfer the trademark paper stack to the next station.

[0017] As an optional solution for a trademark paper stack storage and conveying device, the trademark paper stack storage and conveying device also includes a lifting adjustable bracket, on which the second paper support is disposed, so that the receiving height of the second paper support is adjustable.

[0018] As an alternative solution for a trademark paper stack storage and conveying device, the trademark paper stack storage and conveying device further includes a first sensor and a second sensor, the first sensor being configured to detect whether the trademark paper stack exists on the first conveyor belt, and the second sensor being configured to detect whether the trademark paper stack exists on the second conveyor belt.

[0019] As an optional solution for a label paper stack storage and conveying device, the label paper stack storage and conveying device also includes an alarm. The lifting drive mechanism is communicatively connected to the first sensor, the second sensor, and the alarm. When the first sensor detects that there is no label paper stack on the first conveyor belt, the first sensor can emit a first signal. When the second sensor detects that there is no label paper stack on the second conveyor belt, the second sensor can emit a second signal. The lifting drive mechanism can receive the first signal and the second signal. When the lifting drive mechanism receives the second signal but does not receive the first signal, it drives the first paper holder to receive the label paper stack on the first conveyor belt and transfer it to the second conveyor belt. When the lifting drive mechanism receives both the first signal and the second signal, the alarm is triggered and emits a refill alarm signal.

[0020] As an alternative solution for a trademark paper stack storage and conveying device, the receiving surface of the first paper holder is provided with a cushioning pad.

[0021] As an alternative solution for a trademark paper stack storage and conveying device, both the first conveyor belt and the second conveyor belt have anti-slip protrusions on their surfaces.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a label paper stack storage and conveying device. During operation, label paper stacks are placed on both a first conveyor belt and a second conveyor belt. The first conveyor belt conveys the label paper stacks horizontally to the right. When a lifting drive mechanism drives a first paper support to rise to the right output end of the first conveyor belt, the first paper support receives the first stack of label paper. Subsequently, the lifting drive mechanism drives the first paper support to move downwards to the right input end of the second conveyor belt, where the second conveyor belt receives the stack and conveys it to the left. This label paper stack storage and conveying device has two conveyor belts, both capable of conveying and holding label paper stacks, increasing the storage capacity. When there are no label paper stacks on the second conveyor belt, the lifting drive mechanism drives the first paper support to move up and down to receive the stacks from the first conveyor belt and transfer them to the second conveyor belt. This reduces the frequency of manual addition, greatly saving operators' time in adding label paper stacks, improving production efficiency, ensuring operators have time to observe equipment and product quality, effectively reducing equipment accidents and product quality risks, and also reducing the labor intensity of operators. Attached Figure Description

[0024] Figure 1 This is a first schematic diagram of the trademark paper stack storage and conveying device according to an embodiment of the present utility model;

[0025] Figure 2 This is a second schematic diagram of the trademark paper stacking and conveying device described in this embodiment of the utility model.

[0026] In the picture:

[0027] 100. Label paper stack; 1. First conveyor belt; 2. Second conveyor belt;

[0028] 3. Lifting drive mechanism; 31. Lead screw; 32. Drive component; 33. Moving component; 331. Slide groove; 332. Limiting protrusion; 34. Slide rail; 35. Flexible coupling; 4. First paper support; 5. Second paper support. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] This utility model provides a label paper stack storage and conveying device, such as Figures 1-2 As shown, the trademark paper stack storage and conveying device includes a frame, a first conveyor belt 1, a second conveyor belt 2, a lifting drive mechanism 3, and a first paper support 4. The first conveyor belt 1 and the second conveyor belt 2 are arranged vertically at intervals on the frame. Both extend horizontally and can hold and store trademark paper stacks 100. The first conveyor belt 1 is located above the second conveyor belt 2 and is used to convey trademark paper stacks 100 to the right horizontally. The second conveyor belt 2 is used to convey trademark paper stacks 100 to the left horizontally. The lifting drive mechanism 3 is located on the frame. The first paper support 4 can hold trademark paper stacks 100. The lifting drive mechanism 3 is used to drive the first paper support 4 to move up and down vertically. When the first paper support 4 rises to the right output end of the first conveyor belt 1, it can receive the first trademark paper stack 100 conveyed from left to right to its output end on the first conveyor belt 1. When the first paper support 4 moves down to the right input end of the second conveyor belt 2, the second conveyor belt 2 can receive and convey the trademark paper stacks 100 in the first paper support 4 to the left.

[0034] When the trademark paper stack storage and conveying device is working, the trademark paper stacks 100 are placed on both the first conveyor belt 1 and the second conveyor belt 2. The first conveyor belt 1 conveys the trademark paper stacks 100 on it to the right in the horizontal direction. When the lifting drive mechanism 3 drives the first paper support 4 to rise to the right output end of the first conveyor belt 1, the first paper support 4 receives the first trademark paper stack 100 that has been conveyed. Then the lifting drive mechanism 3 drives the first paper support 4 to move downward to the right input end of the second conveyor belt 2, and the second conveyor belt 2 receives the trademark paper stack 100 and conveys it to the left. The trademark paper stack storage and conveying device is equipped with two conveyor belts, one above the other. Both conveyor belts can transport and hold trademark paper stacks 100, increasing the storage capacity of trademark paper stacks 100. When there are no trademark paper stacks 100 on the second conveyor belt 2, the lifting drive mechanism 3 drives the first paper support 4 to move up and down to receive the trademark paper stacks 100 on the first conveyor belt 1 and transfer the trademark paper stacks 100 to the second conveyor belt 2. This reduces the frequency of manual addition, greatly saves the time of operators to add auxiliary materials, improves production efficiency, and ensures that operators can free up time to observe equipment and product quality, effectively reducing equipment accidents and product quality risks, while also reducing the labor intensity of operators.

[0035] It is worth noting that existing rigid box packaging machines require manual addition of label paper stacks 100 to the conveyor belt during operation. Only seventeen stacks of label paper stacks 100 can be loaded at a time, and they need to be added again after about twenty-five minutes. Frequent addition of label paper stacks 100 interferes with the operator's other work. The double-layer conveyor belt can double the amount of label paper stacks 100 that can be added at one time, allowing the machine to be used for fifty minutes at a time, which greatly saves the operator's time in adding label paper stacks 100.

[0036] like Figure 1As shown, the lifting drive mechanism 3 includes a lead screw 31, a drive member 32, a moving member 33, and a slide rail 34. The lead screw 31 extends vertically and is located to the right of the right output end of the first conveyor belt 1 and the right input end of the second conveyor belt 2. The drive member 32 is fixed on the frame, and its output end is connected to the lead screw 31. The drive member 32 can drive the lead screw 31 to rotate around its own axis. The moving member 33 is threadedly connected to the lead screw 31. The slide rail 34 is fixed on the frame and extends vertically, slidingly engaging with the moving member 33 and guiding the moving member 33 to move vertically. The first paper holder 4 is mounted on the moving member 33 on the side facing the first conveyor belt 1 and the second conveyor belt 2. When the lead screw 31 rotates, the moving member 33 can move along the slide rail 34 so that the first paper holder 4 moves up and down synchronously in the vertical direction. The drive component 32 can stably drive the lead screw 31 to rotate, and together with the slide rail 34, it can precisely guide the moving component 33, preventing the moving component 33 from deviating or getting stuck. This allows the first paper holder 4 to move up and down smoothly and accurately, ensuring that the first paper holder 4 accurately connects to the output end of the first conveyor belt 1 to receive paper and the input end of the second conveyor belt 2 to transmit paper. This ensures smooth transmission of the label paper stack 100 and effectively improves the operational stability and reliability of the label paper stack storage and conveying device.

[0037] like Figure 2 As shown, the movable component 33 is provided with a vertically extending groove 331. The slide rail 34 passes through the groove 331 and forms a sliding fit with the groove 331. Two limiting protrusions 332 are symmetrically provided on the outer edge of the opening side of the groove 331 to prevent the slide rail 34 from disengaging from the groove 331 and to laterally limit the movement of the movable component 33, thus constraining the movement of the movable component 33 in the vertical direction. The sliding fit between the groove 331 and the slide rail 34 of the movable component 33 can further improve the smoothness of the vertical movement of the movable component 33. The two limiting protrusions 332 on the opening side of the groove 331 can effectively prevent the slide rail 34 from disengaging from the groove 331 and can also laterally limit the movement of the movable component 33, preventing the movable component 33 from deviating during movement. This ensures that the first paper holder 4 moves more smoothly and accurately with the movable component 33, ensuring smooth transmission of the label paper stack 100 between the first conveyor belt 1 and the second conveyor belt 2, and improving the operational reliability of the label paper stack storage and conveying device.

[0038] like Figure 1 As shown, the lifting drive mechanism 3 also includes a flexible coupling 35. The drive component 32 is a servo motor, and the end of the lead screw 31 is connected to the output end of the servo motor through the flexible coupling 35. The servo motor is connected to the end of the lead screw 31 through the flexible coupling 35, which can precisely control the rotation of the lead screw 31. The flexible coupling 35 can buffer and reduce shock, compensate for installation errors, ensure smooth transmission, and ensure that the moving component 33 drives the first paper holder 4 to move more accurately and stably. The label paper stack 100 is reliably transmitted between the first conveyor belt 1 and the second conveyor belt 2, improving the operating accuracy and service life of the label paper stack storage and conveying device.

[0039] like Figure 1 As shown, the label paper stack storage and conveying device also includes a second paper support 5. The second paper support 5 is located on the left side of the output end of the second conveyor belt 2, and is used to receive the first label paper stack 100 conveyed from right to left to its output end on the second conveyor belt 2, and transfer the label paper stack 100 to the next work station. The second paper support 5 can accurately receive the first label paper stack 100 conveyed from the output end of the left side of the second conveyor belt 2, preventing the label paper stack 100 from falling or shifting at the conveying connection, and at the same time stably transfer the label paper stack 100 to the next work station, making the transmission process of the label paper stack 100 from storage to subsequent processing more seamless, reducing the risk of transmission interruption, further improving the overall conveying efficiency and stability of the label paper stack storage and conveying device, and ensuring continuous production.

[0040] like Figure 1 As shown, the label paper stack storage and conveying device also includes a lifting adjustable bracket (not shown). The second paper support 5 is mounted on the lifting adjustable bracket, allowing the receiving height of the second paper support 5 to be adjusted. The lifting adjustable bracket can flexibly adjust the receiving height of the second paper support 5, precisely adapting to the height of the left output end of the second conveyor belt 2, ensuring that the second paper support 5 stably supports the label paper stack 100. It can also adjust the height according to the needs of the next workstation to smoothly transfer the label paper stack 100, improving the adaptability of the label paper stack storage and conveying device, avoiding transmission jams or drops caused by height deviations, further ensuring the continuity of the conveying process, and enhancing the practicality of the label paper stack storage and conveying device.

[0041] Specifically, the adjustable lifting bracket includes a fixed base, a lifting rod, and a locking component. The fixed base is fixed to the frame, one end of the lifting rod passes through the fixed base, and the other end of the lifting rod is connected to the second paper support 5. By adjusting the length of the lifting rod passing through the fixed base and locking the relative position of the lifting rod and the fixed base with the locking component, the bearing height of the second paper support 5 can be flexibly changed, accurately adapting to the output end of the second conveyor belt 2 and the next work station, ensuring the smooth transfer of the label paper stack 100, improving the adaptability of the label paper stack storage and conveying device, and ensuring the continuity of transmission.

[0042] In this embodiment, the label paper stack storage and conveying device further includes a first sensor (not shown) and a second sensor (not shown). The first sensor is used to detect whether there is a label paper stack 100 on the first conveyor belt 1, and the second sensor is used to detect whether there is a label paper stack 100 on the second conveyor belt 2. This allows for timely feedback on the inventory status of the label paper stack 100 on the first conveyor belt 1 or the second conveyor belt 2, facilitating operators to prepare for replenishment in advance, avoiding conveying interruptions due to material shortages, ensuring continuous operation of the label paper stack storage and conveying device, reducing the risk of production stoppages, and improving production continuity and efficiency.

[0043] In this embodiment, the trademark paper stack storage and conveying device also includes an alarm (not shown). The lifting drive mechanism 3 is communicatively connected to the first sensor, the second sensor, and the alarm. When the first sensor detects that there is no trademark paper stack 100 on the first conveyor belt 1, the first sensor can emit a first signal. When the second sensor detects that there is no trademark paper stack 100 on the second conveyor belt 2, the second sensor can emit a second signal. The lifting drive mechanism 3 can receive the first signal and the second signal. When the lifting drive mechanism 3 receives the second signal but does not receive the first signal, it drives the first paper support 4 to receive the trademark paper stack 100 on the first conveyor belt 1 and transfer it to the second conveyor belt 2. When the lifting drive mechanism 3 receives both the first signal and the second signal, the alarm is triggered and emits an alarm signal indicating that the paper needs to be filled. The lifting drive mechanism 3 is communicatively connected to the first sensor, the second sensor, and the alarm, and can accurately receive and respond to signals. When it receives the second signal (no label paper stack 100 on the second conveyor belt 2) and does not receive the first signal (label paper stack 100 on the first conveyor belt 1), it automatically drives the first paper support 4 to transfer the label paper stack 100 on the first conveyor belt 1 to the second conveyor belt 2, ensuring continuous material supply. When it receives both the first and second signals (no label paper stack 100 on either the first conveyor belt 1 or the second conveyor belt 2), it triggers the alarm to issue a filling alarm, which allows operators to add label paper stack 100 according to the alarm. This realizes automatic material replenishment and material shortage warning linkage, avoids production interruption due to material shortage, reduces the operational burden, and significantly improves the automation level and production continuity of the label paper stack storage and conveying device.

[0044] In this embodiment, a buffer pad is provided on the receiving surface of the first paper holder 4. The buffer pad on the receiving surface of the first paper holder 4 can buffer the label paper stack 100 conveyed by the first conveyor belt 1, avoiding direct rigid contact between the label paper stack 100 and the first paper holder 4, which would cause paper edge damage or stacking misalignment, ensuring the integrity of the label paper stack 100, ensuring the quality stability during subsequent transmission and processing by the second conveyor belt 2, improving the protection effect of the label paper stack storage and conveying device on the label paper stack 100, and reducing material loss.

[0045] In this embodiment, a buffer pad is also provided on the receiving surface of the second paper holder 5. The buffer pad on the receiving surface of the second paper holder 5 can form a buffer when receiving the label paper stack 100 conveyed by the second conveyor belt 2, avoiding rigid contact between the label paper stack 100 and the second paper holder 5, which would cause edge damage and stacking misalignment, ensuring the integrity of the label paper stack 100, ensuring that the label paper stack 100 is in good condition when transferred to the next station, reducing material loss, further improving the protection effect of the label paper stack 100, and ensuring the stability of subsequent processing quality.

[0046] Alternatively, the cushioning pad can be a silicone pad, a rubber pad, or a sponge pad, etc., without specific limitations.

[0047] In this embodiment, both the first conveyor belt 1 and the second conveyor belt 2 are provided with anti-slip protrusions. The anti-slip protrusions can increase the friction between the surface of the conveyor belt and the label paper stack 100, preventing the label paper stack 100 from deviating or slipping due to the operation of the conveyor belt during the conveying process. This ensures that the label paper stack 100 is stably transported along the set direction, guaranteeing both the accuracy of the label paper stack 100 being transported from the first conveyor belt 1 to the first paper support 4 and the accuracy of the label paper stack 100 being transported from the first paper support 4 to the second conveyor belt 2, further improving the conveying stability of the label paper stack storage and conveying device.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A label paper stack storage and conveying device, characterized in that, include: frame; A first conveyor belt (1) and a second conveyor belt (2) are arranged vertically at intervals on the frame. Both extend horizontally and are capable of holding and storing stacks of trademark paper (100). The first conveyor belt (1) is arranged above the second conveyor belt (2) and is configured to convey the stacks of trademark paper (100) to the right along the horizontal direction. The second conveyor belt (2) is configured to convey the stacks of trademark paper (100) to the left along the horizontal direction. The lifting drive mechanism (3) and the first paper holder (4) are provided on the frame. The first paper holder (4) can hold the trademark paper stack (100). The lifting drive mechanism (3) is configured to drive the first paper holder (4) to move up and down in the vertical direction. When the first paper holder (4) rises to the right output end of the first conveyor belt (1), it can receive the first trademark paper stack (100) that is conveyed from left to right to its output end on the first conveyor belt (1). When the first paper holder (4) moves down to the right input end of the second conveyor belt (2), the second conveyor belt (2) can receive and convey the trademark paper stack (100) in the first paper holder (4) to the left.

2. The trademark paper stack storage and conveying device according to claim 1, characterized in that, The lifting drive mechanism (3) includes: The screw (31) extends along the vertical direction and is located to the right of the output end of the first conveyor belt (1) and the input end of the second conveyor belt (2). The drive (32) is fixed on the frame and its output end is connected to the screw (31). The drive (32) can drive the screw (31) to rotate around its own axis. The moving part (33) and the slide rail (34) are threadedly connected to the lead screw (31). The slide rail (34) is fixed on the frame and extends along the vertical direction, slides with the moving part (33), and guides the movement of the moving part (33) along the vertical direction. The first paper holder (4) is installed on the moving part (33) on the side facing the first conveyor belt (1) and the second conveyor belt (2). When the lead screw (31) rotates, the moving part (33) can move along the slide rail (34) so ​​that the first paper holder (4) moves up and down synchronously along the vertical direction.

3. The trademark paper stack storage and conveying device according to claim 2, characterized in that, The movable member (33) is provided with a groove (331) extending along the vertical direction. The slide rail (34) passes through the groove (331) and forms a sliding fit with the groove (331). Two limiting protrusions (332) are symmetrically provided on the outer edge of the opening side of the groove (331) to restrict the slide rail (34) from leaving the groove (331) and to laterally limit the movable member (33) and constrain the movement of the movable member (33) along the vertical direction.

4. The trademark paper stack storage and conveying device according to claim 2, characterized in that, The lifting drive mechanism (3) also includes a flexible coupling (35), the drive component (32) is a servo motor, and the end of the lead screw (31) is connected to the output end of the servo motor through the flexible coupling (35).

5. The trademark paper stack storage and conveying device according to claim 1, characterized in that, The trademark paper stack storage and conveying device also includes a second paper holder (5), which is located on the left side of the output end of the second conveyor belt (2) and is configured to receive the first trademark paper stack (100) conveyed from right to left to its output end on the second conveyor belt (2) and transfer the trademark paper stack (100) to the next station.

6. The trademark paper stack storage and conveying device according to claim 5, characterized in that, The trademark paper stack storage and conveying device also includes a lifting adjustable bracket, and the second paper support (5) is arranged on the lifting adjustable bracket so that the bearing height of the second paper support (5) is adjustable.

7. The trademark paper stack storage and conveying device according to any one of claims 1-6, characterized in that, The trademark paper stack storage and conveying device further includes a first sensor and a second sensor, the first sensor being configured to detect whether the trademark paper stack (100) exists on the first conveyor belt (1), and the second sensor being configured to detect whether the trademark paper stack (100) exists on the second conveyor belt (2).

8. The trademark paper stack storage and conveying device according to claim 7, characterized in that, The trademark paper stack storage and conveying device also includes an alarm. The lifting drive mechanism (3) is communicatively connected to the first sensor, the second sensor and the alarm. When the first sensor detects that there is no trademark paper stack (100) on the first conveyor belt (1), the first sensor can emit a first signal. When the second sensor detects that there is no trademark paper stack (100) on the second conveyor belt (2), the second sensor can emit a second signal. The lifting drive mechanism (3) can receive the first signal and the second signal. When the lifting drive mechanism (3) receives the second signal but does not receive the first signal, it drives the first paper holder (4) to receive the trademark paper stack (100) on the first conveyor belt (1) and transfer it to the second conveyor belt (2). When the lifting drive mechanism (3) receives both the first signal and the second signal at the same time, the alarm is triggered and emits an alarm signal indicating that the paper needs to be filled.

9. The trademark paper stack storage and conveying device according to any one of claims 1-6, characterized in that, A buffer pad is provided on the receiving surface of the first paper holder (4).

10. The trademark paper stack storage and conveying device according to any one of claims 1-6, characterized in that, The surfaces of the first conveyor belt (1) and the second conveyor belt (2) are provided with anti-slip protrusions.

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