Lifting and pulling type cover stack conveying mechanism and conveying equipment

Abstract

The utility model belongs to the technical field of conveying equipment, and particularly relates to a lifting and pulling type cover stack conveying mechanism and conveying equipment. Comprising a mounting rack, a bearing plate used for bearing and placing a cover stack, a lifting layering structure arranged on the mounting rack and located above the bearing plate, and a pulling and conveying structure arranged on the mounting rack and located on one side of the lifting layering structure. A gap is formed between the uppermost cover strip and the lower cover strip, then the pulling and conveying structure extends into the gap to grab the lifted end of the uppermost cover strip of the cover stack, the grabbed cover strip is transferred out of the bearing plate and conveyed to the next station, the cover stack layered conveying efficiency is high, and the cost is low.

Description

[Technical field]

[0001] The utility model belongs to the technical field of conveying equipment, and in particular relates to a lifting and pulling type cover stack conveying mechanism and conveying equipment. [Background technology]

[0002] Cap stack is the industry abbreviation for stacking several can lids into a stack. When stacking, the cap factory arranges multiple cap strips in order into a layer, and stacks them into cap stacks for transportation. When depalletizing is needed, the cap stack is sent to the conveying mechanism for transportation. After going through multiple processes, it is decomposed into separate cap strips before being sent to the cap feeding machine to decompose the paper bags, and finally sent to the can sealing machine for use.

[0003] During the depalletizing process, the stacked lids need to be layered and then transported. The existing method is to layer them manually or using mechanical equipment and move them out layer by layer for transportation. Manual operation is very unsafe and is prone to scratches or injuries. Mechanical equipment generally uses robots for layering, which is not only too costly but also inefficient. [Utility Model Content]

[0004] The utility model aims to provide a lifting and pulling type cover stack conveying mechanism with high cover stack layered conveying efficiency and low cost.

[0005] The utility model is realized by the following technical solutions:

[0006] A lifting and pulling type cover stack conveying mechanism comprises a mounting frame and further comprises:

[0007] A load-bearing plate, which is used to support and place the cover stack;

[0008] A lifting layered structure, which is arranged on the mounting frame and is used to lift one end of the uppermost cover strip of the cover stack;

[0009] The pulling structure is arranged on the mounting frame and located at one side of the lifting layered structure, and is used to grab the lifted end of the uppermost cover strip of the cover stack and move the grabbed cover strip out of the carrying plate.

[0010] As described above, a lifting and pulling type cover stack conveying mechanism, the lifting layered structure comprises:

[0011] Lifting the mounting plate, which is disposed on the mounting frame;

[0012] A suction assembly, which is arranged on the lifting mounting plate and is used to suck one end of the uppermost cover strip of the cover stack;

[0013] The lifting and lifting mechanism is arranged between the lifting installation plate and the suction component, and is used to drive the suction component to rise and fall relative to the lifting installation plate.

[0014] In the lifting and pulling type cover stack conveying mechanism as described above, the lifting layered structure further comprises a lifting and transverse movement mechanism disposed between the lifting mounting plate and the suction assembly, and the lifting and transverse movement mechanism is used to drive the suction assembly to transversely move relative to the lifting mounting plate.

[0015] In the lifting and pulling cover stack conveying mechanism as described above, the suction assembly includes a suction mounting plate, a suction member arranged on the suction mounting plate, and a suction lifting driving member for driving the suction member to lift and move, and a plurality of the suction members are arranged along the length direction of the suction mounting plate.

[0016] As described above, the lifting and pulling type cover stack conveying mechanism, the lifting and lateral movement mechanism comprises:

[0017] Transverse mounting plate;

[0018] A transverse sliding rail is arranged on the transverse mounting plate along the length direction of the suction mounting plate, and the suction mounting plate is movably arranged on the transverse sliding rail;

[0019] The transverse driving member is arranged on the transverse mounting plate and is used for driving the suction mounting plate to move.

[0020] As described above, a lifting and pulling type cover stack conveying mechanism, the lifting and lifting mechanism comprises:

[0021] A lifting and lowering guide sleeve is arranged on the lifting and mounting plate;

[0022] A lifting and lowering guide column, one end of which is arranged on the transverse moving mounting plate, and the other end of which is movably arranged on the lifting and lowering guide sleeve;

[0023] The lifting and lowering driving member is arranged on the lifting and lowering mounting plate and is used for driving the transverse moving mounting plate to move up and down.

[0024] As described above, a lifting and pulling type cover stack conveying mechanism, the pulling and conveying structure comprises:

[0025] A pulling guide rail is arranged on the mounting frame along the axial direction of the cover strip on the bearing plate;

[0026] A pulling and conveying mounting plate, which is movably arranged on the pulling and conveying guide rail;

[0027] A pulling drive member, which is used to drive the pulling installation plate to move;

[0028] An upper clamping member, which is arranged on the pulling and mounting plate;

[0029] A lower clamping member, which is movably disposed below the upper clamping member in a vertical direction;

[0030] The clamping driving member is arranged on the pulling and conveying mounting plate and is used for driving the lower clamping member to move.

[0031] In the lifting and pulling cover stack conveying mechanism as described above, the upper clamping member is movably arranged on the pulling and conveying mounting plate along the vertical direction, and a buffer elastic member is arranged between the upper clamping member and the pulling and conveying mounting plate.

[0032] A conveying device comprises the lift-pull cover stack conveying mechanism as described in any one of the above items, and a cover stack lifting mechanism arranged on a mounting frame for driving a load-bearing plate to lift and lower.

[0033] In the above-mentioned conveying equipment, the cover stack lifting mechanism comprises a lifting device for driving the carrying plate to lift and lower, and a correction device for centering and approaching to correct the initial position of the cover stack on the carrying plate.

[0034] Compared with the prior art, the utility model has the following advantages:

[0035] The utility model provides a lifting and pulling type cover stack conveying mechanism, comprising an installation frame, a carrying plate for supporting and placing the cover stack, a lifting layered structure arranged on the installation frame and located above the carrying plate, and a pulling structure arranged on the installation frame and located on one side of the lifting layered structure. When working, the cover stack is placed on the carrying plate, and one end of the uppermost cover strip of the cover stack is lifted by the lifting layered structure, so that a gap is formed between the uppermost cover strip and the lower cover strip, and then the pulling structure extends into the gap to grab the lifted end of the uppermost cover strip of the cover stack, and the grabbed cover strip is moved out of the carrying plate and conveyed to the next work station. The layered conveying efficiency of the cover stack is high and the cost is low.

[0036] The utility model also provides a conveying device, which includes the lifting and pulling type cover stack conveying mechanism as described above, and thus has its corresponding beneficial effects, and also includes a cover stack lifting mechanism arranged on the mounting frame for driving the carrying plate to lift and lower. The cover stack position is corrected by a correction component at the starting position of the base plate lifted by the lifting device, and the base plate is stabilized, so that the base plate can be in a stable straight-up movement effectively, so that the cover stack can be maintained in the corrected position when it rises, which is convenient for aligning the preset transmission position of the subsequent transmission equipment, making the transmission process smoother and error-free, and effectively preventing the cover stack from falling and causing danger during the shaking process.

Brief Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0038] Figure 1 It is a structural schematic diagram of the lifting and pulling type cover stack conveying mechanism in a specific embodiment of the utility model;

[0039] Figure 2 It is a structural schematic diagram of the lifting layered structure in a specific implementation manner of the utility model;

[0040] Figure 3 It is a structural schematic diagram of the pulling structure in a specific implementation manner of the utility model;

[0041] Figure 4 It is a structural schematic diagram of the conveying equipment in a specific implementation mode of the utility model;

[0042] Figure 5 This is a structural schematic diagram of a cover stack lifting mechanism in a specific implementation manner of the utility model;

[0043] Figure 6 This is a structural schematic diagram of a lifting device in a specific implementation mode of the utility model;

[0044] Figure 7 It is a structural schematic diagram of the correction component in a specific implementation manner of the utility model. [Specific implementation method]

[0045] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0046] When the embodiments of the present invention mention ordinal numbers such as "first" and "second", unless they do express the meaning of order according to the context, they should be understood as being merely for distinction.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Specific embodiments, such as Figure 1-3The illustrated lifting and pulling type cover stack conveying mechanism includes a mounting frame 1 and also includes: a carrying plate 7, which is used to support and place the cover stack; a lifting layer structure 8, which is arranged on the mounting frame 1 and located above the carrying plate 7, and is used to lift one end of the uppermost cover strip of the cover stack; a pulling structure 9, which is arranged on the mounting frame 1 and located on one side of the lifting layer structure 8, and is used to grab the lifted end of the uppermost cover strip of the cover stack, and move the grabbed cover strip out of the carrying plate 7. During operation, the cover stack is placed on the carrying plate, and the lifting layer structure is used to lift one end of the uppermost cover strip of the cover stack, so that a gap is formed between the uppermost cover strip and the lower cover strip, and then the pulling structure is extended into the gap to grab the lifted end of the uppermost cover strip of the cover stack, and the grabbed cover strip is moved out of the carrying plate and conveyed to the next workstation, so that the layered conveying efficiency of the cover stack is high and the cost is low.

[0049] Specifically, the lifting layered structure 8 comprises: a lifting mounting plate 81, which is arranged on the mounting frame 1; a suction assembly 82, which is arranged on the lifting mounting plate 81 and is used to suck one end of the uppermost cover strip of the cover stack; a lifting and lifting mechanism 83, which is arranged between the lifting mounting plate 81 and the suction assembly 82 and is used to drive the suction assembly 82 to rise and fall relative to the lifting mounting plate 81. When in use, the suction assembly 82 is driven by the lifting and lifting mechanism 83 to descend close to the cover stack, and suck the uppermost cover strip of the cover stack, so that one end of the uppermost cover strip of the cover stack is lifted, which is convenient for the pulling and feeding structure 9 to grab, and the production efficiency is high.

[0050] In addition, the lifting layered structure 8 also includes a lifting and transverse movement mechanism 84 arranged between the lifting mounting plate 81 and the suction component 82. The lifting and transverse movement mechanism 84 is used to drive the suction component 82 to move transversely relative to the lifting mounting plate 81. When the topmost cover strip is moved, the suction component 82 is driven to move transversely by the lifting and transverse movement mechanism 84, so that the suction component 82 is aligned with the cover strips on the next layer of the cover stack, thereby realizing automatic adjustment, with a higher degree of automation and higher efficiency.

[0051] Furthermore, the suction assembly 82 includes a suction mounting plate 821, a suction member 822 disposed on the suction mounting plate 821, and a suction lifting driving member 823 for driving the suction member 822 to move up and down, and a plurality of the suction members 822 are arranged along the length direction of the suction mounting plate 821. Specifically, the suction member 822 can adopt vacuum suction, and the suction lifting driving member 823 can adopt a hydraulic cylinder or a telescopic cylinder. By the suction lifting driving member 823 corresponding to the suction member 822 lifting, the lifting of each suction member 822 can be adjusted individually according to the height of each cover strip, so as to avoid that some cover strips fail to be successfully sucked due to the excessive distance between them and the corresponding suction member 822.

[0052] More specifically, the lifting and transverse movement mechanism 84 includes: a transverse movement mounting plate 841; a transverse movement slide rail 842, which is arranged on the transverse movement mounting plate 841 along the length direction of the suction mounting plate 821, and the suction mounting plate 821 is movably arranged on the transverse movement slide rail 842; and a transverse movement driving member 843, which is arranged on the transverse movement mounting plate 841 and is used to drive the suction mounting plate 821 to move. The transverse movement driving member 843 can be a hydraulic cylinder or a telescopic cylinder.

[0053] Furthermore, the lifting and lifting mechanism 83 includes: a lifting and lifting guide sleeve 831, which is arranged on the lifting installation plate 81; a lifting and lifting guide column 832, one end of which is arranged on the transverse installation plate 841, and the other end is movably arranged on the lifting and lifting guide sleeve 831; a lifting and lifting driving member 833, which is arranged on the lifting installation plate 81 and is used to drive the transverse installation plate 841 to move up and down. The lifting and lifting driving member 833 can be a hydraulic cylinder or a telescopic cylinder.

[0054] Furthermore, the pulling structure 9 includes: a pulling guide rail 91, which is arranged on the mounting frame 1 along the axial direction of the cover strip on the supporting plate 7; a pulling mounting plate 92, which is movably arranged on the pulling guide rail 91; a pulling driving member 93, which is used to drive the pulling mounting plate 92 to move; an upper clamping member 94, which is arranged on the pulling mounting plate 92; a lower clamping member 95, which is movably arranged below the upper clamping member 94 in the vertical direction; and a clamping driving member 96, which is arranged on the pulling mounting plate 92 and is used to drive the lower clamping member 95 to move. Both the pulling drive member 93 and the clamping drive member 96 can adopt hydraulic cylinders or telescopic cylinders. When in use, the pulling drive member 93 drives the upper clamping member 94 and the lower clamping member 95 to move, and makes the lower clamping member 95 extend into the gap formed between the topmost cover strip and the lower cover strip, and then drives the lower clamping member 95 to move upward through the clamping drive member 96, and cooperates with the upper clamping member 94 to clamp the topmost cover strip, and finally drives the cover strip to be moved out of the supporting plate 7 through the pulling drive member 93.

[0055] Specifically, the upper clamping member 94 is movably arranged on the pulling and conveying mounting plate 92 along the vertical direction, and a buffer elastic member 10 is arranged between the upper clamping member 94 and the pulling and conveying mounting plate 92 to avoid rigid clamping from damaging the cover strip.

[0056] like Figure 4-7A conveying device shown includes the lift-pull type cover stack conveying mechanism as described above, and a cover stack lifting mechanism arranged on the mounting frame 1 for driving the lifting and lowering of the carrier plate 7, wherein the cover stack lifting mechanism includes a lifting device 2 for driving the lifting and lowering movement of the carrier plate 7, and a correction device 3 for centering and approaching to correct the initial position of the cover stack on the carrier plate 7. The carrier plate is used to support multiple cover stacks, each of which is composed of multiple can top covers arranged neatly, and is in a strip shape as a whole. The staff stacks multiple cover stacks on a pallet, transports the pallet to the carrier plate by a forklift and puts it down, and the lifting device starts to lift the material upward. During the lifting, the correcting device can correct and lift the material while the carrier plate is rising at the starting position. The specific correction work is: the outside of the carrier plate has multiple forces that center and approach to push the cover stack inward, so as to correct the initial position of the cover stack to be neatly arranged, and avoid the cover stack from being offset or skewed on the carrier plate. During the correction, the carrier plate is stabilized and does not shake. After the carrier plate moves upward and passes over the correction device, the correction work is completed and the carrier plate has been lifted up in a stable state, which is convenient for the cooperation of subsequent transmission equipment.

[0057] The correction device 3 described in the utility model includes a correction component 31 that can be centered and brought together, and a linkage component 32 arranged between the correction component 31 and the lifting device 2, and the linkage component 32 can drive the correction component 31 to be centered and brought together when the lifting device 2 rises. The correction component is a component for correcting the position of the carrier plate and the cover stack, and can be centered and brought together from the outside of the carrier plate to the inside, and the wall surface on one side that contacts the carrier plate and the cover stack is preferably flat, so that the carrier plate is squeezed by the correction components on all sides to reduce shaking, and at the same time, the position of the cover stack that is shifted due to shaking is corrected, so that the cover stack can be neatly arranged, which is convenient for subsequent transmission equipment to transport. In the starting section of the lifting device lifting upward, the linkage component can drive the correction component to move toward the carrier plate and the cover stack.

[0058] The linkage component 32 described in the utility model is a guide portion or an abutment member arranged on the correction component 31, and an abutment member or a guide portion arranged on the lifting device 2 in cooperation with the guide portion or the abutment member. The function of the linkage component is to drive the correction component to be pushed toward the side of the support plate through the linkage component when the lifting device is lifted and lowered. Therefore, the linkage component can be used as a guide portion or as an abutment member, and cooperates with the guide portion or the abutment member arranged on the lifting device to push the correction component. A fixed rod or a protrusion can be used, or a roller can be used as an abutment member. Similarly, an arc-shaped surface or a polygonal surface can be used as a guide portion. When the abutment member slides on the fixed guide portion, or the guide plate slides on the fixed abutment member, one of the directions is prompted to move to one side, thereby achieving the effect of the linkage component driving the correction component to be pushed toward the side of the support plate.

[0059] The abutment member in the utility model is a roller, and can rotate along the guide portion to achieve guide matching. The abutment member of the technical solution is preferably a roller, so that the abutment member can slide more smoothly on the guide portion.

[0060] The cross-section of the guide part described in the utility model is a trapezoid, and its outer side walls are respectively composed of an upper inclined surface 41, a middle plane 42, and a lower inclined surface 43. The setting of the upper inclined surface, the middle plane, and the lower inclined surface allows the outer side wall of the correction component to be in close contact with the roller, and when the lifting device moves upward, the roller gradually slides from the initial pressing of the lower inclined surface to the middle plane, and then slides to the upper inclined surface, and finally separates from the correction component. This process allows the correction component to move from being away from the load-bearing plate to being close to the load-bearing plate and then away from the load-bearing plate again. When the roller slides to the middle plane and the correction component presses the load-bearing plate, the position of the load-bearing plate is corrected to the middle, and the load-bearing plate can then move upward stably until the lifting device separates from the position of the correction component, completing the entire correction process. When the lifting device is reset downward, the roller presses the outer side wall of the correction component again to reset it.

[0061] The correction device 3 in the present invention also includes a reset member 33 capable of resetting the correction member 31. The reset member can reset the correction member after the correction member corrects the carrier plate and the cover stack, and the carrier plate is already in a stable rising state at this time. The reset member is a structure capable of driving the correction device to reset. In the present technical solution, an elastic member is preferably used for reset. According to actual needs, it can also be a structure such as a cylinder or a liquid cylinder that can reset the correction device.

[0062] The reset member 33 in the utility model includes a push rod 331 arranged in the correction member 31, and an elastic member 332 is arranged between the push rod 331 and the inner wall of the correction member 31. The correction member is hollow inside, with the top and bottom being open. The push rod is fixed on the whole machine or fixed to the ground, and is an upright, fixed rod body. The correction member is sleeved on the rod body, and the push rod extends from the open part of the correction member. An elastic member is arranged inside the correction member and between the inner wall on the side away from the bearing plate and the side wall of the push rod. The elastic member is preferably a spring, and the purpose of the arrangement is to allow the correction member to keep applying force in the direction away from the bearing plate, so that the outer wall of the correction member faces close to the side close to the roller.

[0063] The correction device of the utility model also includes a reset top plate 5 arranged on the correction component 31, and the reset top plate 5 can drive the correction component 31 to reset when the lifting device 2 cooperates with the elastic member 332 to fail. The reset top plate has an inclined surface on one side close to the bearing plate. The purpose of the reset top plate is that when the roller presses the outer wall of the correction component again from above the correction component, if the elastic member cannot drive the correction component back, the bearing plate will scrape the reset top plate, so that the correction component can be pushed to reset. This reset top plate is an auxiliary reset structure when the elastic member fails to reset the correction component.

[0064] The lifting device 2 described in the utility model includes a screw 21 and a driving device 6 for driving the screw 21 to rotate. A screw nut 22 is provided on the screw 21. An adapter plate 23 is provided between the screw nut 22 and the supporting plate 1, and the roller is arranged on the adapter plate 23. The driving device can drive the screw to rotate at a fixed point. When the screw rotates at a fixed point, the adapter plate can be driven by the screw nut to move up and down on it in a limited manner. The adapter plate is fixed to the supporting plate, so the adapter plate is in a state of being unable to rotate. When the screw rotates at a fixed point, the adapter plate will move axially upward or downward through the threaded connection of the screw nut and the limitation of the supporting plate. In the present technical solution, four adapter plates are preferably arranged, which are arranged at the front-to-back symmetrical positions on the left and right sides of the supporting plate, so that the four corners of the supporting plate can be fixed, and there are also four corresponding screws and screw nuts.

[0065] The driving device 6 in the utility model includes a motor 61, and the motor 61 is connected to the screw 21 through a plurality of linkage rods 62. The motor drives the plurality of linkage rods to rotate simultaneously, and the linkage rods can be composed of parts such as worms and screws, and can drive the screws to rotate through mechanical principles by adding gears.

[0066] The above is an implementation method provided in combination with specific content, and it is not considered that the specific implementation of the utility model is limited to these descriptions. At the same time, due to different industry names, it is not limited to the above names, nor is it limited to English names. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or a number of technical deductions or replacements made on the premise of the concept of the utility model, shall be regarded as the protection scope of the utility model.

Claims

1. A lifting and pulling cover stack conveying mechanism, comprising a mounting frame (1), characterized in that: Also includes: A carrying plate (7) for supporting and placing the cover stack; A lifting layer structure (8) is arranged on the mounting frame (1) and is used to lift one end of the uppermost cover strip of the cover stack; The pulling structure (9) is arranged on the mounting frame (1) and located on one side of the lifting layer structure (8), and is used to grab the lifted end of the uppermost cover strip of the cover stack and move the grabbed cover strip out of the carrying plate (7).

2. A lifting and pulling type cover stack conveying mechanism according to claim 1, characterized in that: The lifting layered structure (8) comprises: A lifting mounting plate (81) is arranged on the mounting frame (1); A suction assembly (82) is arranged on the lifting mounting plate (81) and is used to suck one end of the uppermost cover strip of the cover stack; The lifting and elevating mechanism (83) is arranged between the lifting and mounting plate (81) and the suction assembly (82) and is used to drive the suction assembly (82) to rise and fall relative to the lifting and mounting plate (81).

3. A lifting and pulling type cover stack conveying mechanism according to claim 2, characterized in that: The lifting layered structure (8) also includes a lifting and transverse movement mechanism (84) arranged between the lifting installation plate (81) and the suction component (82), and the lifting and transverse movement mechanism (84) is used to drive the suction component (82) to move transversely relative to the lifting installation plate (81).

4. A lifting and pulling type cover stack conveying mechanism according to claim 3, characterized in that: The suction assembly (82) comprises a suction mounting plate (821), a suction member (822) arranged on the suction mounting plate (821), and a suction lifting driving member (823) for driving the suction member (822) to move up and down, and a plurality of the suction members (822) are arranged along the length direction of the suction mounting plate (821).

5. A lifting and pulling cover stack conveying mechanism according to claim 4, characterized in that: The lifting and transverse movement mechanism (84) comprises: Transverse mounting plate (841); A transverse sliding rail (842) is arranged on the transverse mounting plate (841) along the length direction of the suction mounting plate (821), and the suction mounting plate (821) is movably arranged on the transverse sliding rail (842); The transverse driving member (843) is arranged on the transverse mounting plate (841) and is used to drive the suction mounting plate (821) to move.

6. A lifting and pulling type cover stack conveying mechanism according to claim 5, characterized in that: The lifting and lowering mechanism (83) comprises: A lifting and lowering guide sleeve (831) is arranged on the lifting and mounting plate (81); A lifting and lowering guide post (832), one end of which is arranged on the transverse moving mounting plate (841), and the other end of which is movably arranged on the lifting and lowering guide sleeve (831); The lifting and lowering driving member (833) is arranged on the lifting and lowering mounting plate (81) and is used to drive the transverse moving mounting plate (841) to move up and down.

7. A lifting and pulling type cover stack conveying mechanism according to claim 1, characterized in that: The pulling structure (9) comprises: A pulling guide rail (91) is arranged on the mounting frame (1) along the axial direction of the cover strip on the bearing plate (7); A pulling installation plate (92) is movably arranged on the pulling guide rail (91); A pulling driving member (93), which is used to drive the pulling mounting plate (92) to move; An upper clamping member (94) is disposed on the pulling and mounting plate (92); A lower clamping member (95) is movably disposed below the upper clamping member (94) in a vertical direction; The clamping driving member (96) is arranged on the pulling installation plate (92) and is used to drive the lower clamping member (95) to move.

8. A lifting and pulling cover stack conveying mechanism according to claim 7, characterized in that: The upper clamping member (94) is movably arranged on the pulling installation plate (92) in the vertical direction, and a buffer elastic member (10) is arranged between the upper clamping member (94) and the pulling installation plate (92).

9. A conveying device, characterized in that: It comprises a lifting and pulling type cover stack conveying mechanism as described in any one of claims 1 to 8, and a cover stack lifting mechanism arranged on a mounting frame (1) for driving a carrying plate (7) to lift and lower.

10. The conveying device according to claim 9, characterized in that The cover stack lifting mechanism comprises a lifting device (2) for driving the carrying plate (7) to move up and down, and a correction device (3) for centering and approaching to correct the initial position of the cover stack on the carrying plate (7).

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