A cardboard automatic conveying and stacking device

Abstract

The invention discloses an automatic cardboard conveying and stacking device, which relates to the technical field of cardboard stacking, and comprises a stacking mechanism, wherein a tidying mechanism is arranged inside the stacking mechanism, and the tidying mechanism is used for tidying the cardboard inputted from the input mechanism; the stacking mechanism comprises an input port, and the cardboard inputted from the input mechanism is received by a stacking platform in the input port, and the stacking platform is in an oblique downward tilted state in the input port, and a height limiting component is arranged above the stacking platform near the output end, and the cardboard is blocked and limited by a transverse limiting piece and a longitudinal limiting piece between the height limiting component and the stacking platform; the beneficial effect of the invention is that the cardboard is pushed by the pushing component, and the cardboard is smoothly stacked together under the action of the gravity of the cardboard, and at the same time, the cardboard is stacked flat by the longitudinal limiting piece and the transverse limiting piece, and finally, the cardboard of rated height is output under the constraint of the height limiting component.

Description

Technical Field

[0001] The invention relates to the technical field of cardboard stacking, in particular to an automatic cardboard conveying and stacking device. Background Art

[0002] Cardboard is the main material for making packaging boxes. With the continuous improvement of production technology, the degree of automation of cardboard processing equipment is getting higher and higher. However, during the processing, the cardboard often needs to be stacked neatly after certain processes for easy handling and storage. In the existing technology, manual operation is usually used for stacking. However, due to the fast feeding speed of automated production equipment and the huge labor intensity of manual operation, it is difficult for operators to keep up with the production rhythm of the equipment, which seriously affects production efficiency, and the production cost of manual operation is relatively high.

[0003] The finished cardboards are stacked, and currently most of them are directly stacked on the brackets. The existing cardboard stacking racks do not have anti-tilt performance. When the cardboards are piled up to a certain height, they will tilt and slide, causing damage to the corners of the cardboards. At the same time, since there are many people in the processing workshop and they move frequently, when the cardboards accidentally slide, it may cause safety accidents such as the board hitting people. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an automatic cardboard conveying and stacking device, which solves the problem that manual labor cannot adapt to the work requirements of fast-paced cardboard stacking, and that excessive cardboard stacking can easily cause safety accidents.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic cardboard conveying and stacking device, comprising an output mechanism and an input mechanism, wherein the input mechanism is used to input cardboard into the stacking device, and the output mechanism is used to output the stacked cardboard;

[0008] A stacking mechanism, wherein a tidying mechanism is provided inside the stacking mechanism, and the tidying mechanism is used to sort the paperboards inputted by the input mechanism;

[0009] The stacking mechanism includes an input port, and the stacking platform is used to receive the paperboard input from the input mechanism. The stacking platform is tilted downward in the input port, and a height limiting component is provided above the stacking platform near the output end. The height limiting component and the stacking platform are blocked and limited by a transverse limiting member and a longitudinal limiting member.

[0010] The tidying mechanism is provided with a pushing component that can move along the screw rod, the screw rod is movably connected to the bottom surface of the stacking table, the pushing component can move in the groove of the stacking table, and the pushing component will continuously squeeze the cardboard during the movement.

[0011] As a preferred solution of the automatic cardboard conveying and stacking device of the present invention, the stacking table includes an output table, the output table is close to the output end of the stacking table, and the inner wall of the upper groove of the stacking table is provided with a guide rail groove and a spring groove, the spring groove is located above the guide rail groove, and a spring is provided in the spring groove.

[0012] As a preferred solution of the cardboard automatic conveying and stacking device of the present invention, wherein: the transverse limiter is placed on the output table, the transverse limiter is close to the end of the stacking table groove, one side of the transverse limiter is provided with the longitudinal limiter, the longitudinal limiter is connected to the inner wall of the stacking mechanism, and an unlocking member is also provided opposite to the longitudinal limiter, a plurality of unlocking members are provided and linearly distributed, and the unlocking member is placed in the notch of the inner wall of the stacking mechanism;

[0013] The longitudinal limiting member is in a vertical position with respect to the output platform.

[0014] As a preferred solution of the automatic cardboard conveying and stacking device described in the present invention, the height limiting component is perpendicular to the output platform, the height limiting component includes a connecting plate, both ends of the connecting plate are fixed to the inner wall of the stacking mechanism, the lower end of the connecting plate is connected to the height limiting plate through a first telescopic rod, and the longitudinal limiting member passes through the side of the height limiting plate.

[0015] As a preferred solution of the automatic cardboard conveying and stacking device of the present invention, the lower end of the spring is connected to the side block of the lifting block, the side block can move in the spring groove, the side block is placed on the side of the top block, and the lower end of the top block is in the shape of an inverted quadrangular pyramid.

[0016] As a preferred solution of the automatic cardboard conveying and stacking device described in the present invention, the unlocking member is bent, a pressure head is provided at one end of the unlocking member, and a trigger head is provided at the other end, the middle part of the unlocking member is movably connected to the inner wall of the slot through a deflection shaft, and a torsion spring is provided on the deflection shaft.

[0017] As a preferred solution of the automatic cardboard conveying and stacking device of the present invention, the screw rod is driven by a motor, the outer side of the motor is fixed to the inner wall of the stacking mechanism through a motor bracket, the screw rod is parallel to the stacking platform; and the pushing assembly is movably connected to the screw rod.

[0018] As a preferred solution of the automatic cardboard conveying and stacking device of the present invention, the output end of the motor is connected to the output head, the output head is transmitted between the crawler and the transmission head at one end of the screw rod, and the other end of the screw rod is movably connected to the bottom surface of the output platform.

[0019] As a preferred solution of the automatic cardboard conveying and stacking device of the present invention, the pushing component includes a push plate, an opening is provided on the push plate, an adjustment plate is provided in the opening, a support head is provided on the outer end of the adjustment plate, a clamping strip is provided on the side of the adjustment plate, the clamping strip is placed in a clamping groove on the inner wall of the opening, and the adjustment plate and the push plate are connected by a second telescopic rod.

[0020] As a preferred solution of the cardboard automatic conveying and stacking device of the present invention, wherein: the two sides of the lower end of the push plate are provided with limit rotating shafts, the limit rotating shafts are connected to the output end of the deflection motor, and the limit rotating shafts are movably connected to the extrusion heads at both ends of the movable joint, and the movable joint is threadedly connected to the screw rod;

[0021] The length of the extrusion head is greater than the length of a side of the paperboard parallel to the stacking platform.

[0022] Beneficial effects of the present invention: when receiving cardboard, the present invention will fall on the receiving platform of the device in an inclined state, and the cardboard will be accumulated inside the device in an inclined state. When the cardboard accumulates to a certain number, the pushing component in the device will rotate 90° and then move along the screw rod. During the movement of the screw rod, the cardboard will be squeezed by the screw rod. At the same time, during the movement of the screw rod, the extrusion head will first lift the lifting block, and use the lifting block to stagger the cardboard, so that the screw rod can smoothly gather the accumulated cardboard together. Finally, all the cardboards will be perpendicular to the longitudinal limiter. When one end of the top cardboard is in contact with the longitudinal limiter, all the unlocking parts are triggered by the cardboard, the transverse limiter and the longitudinal limiter are retracted, and the pushing component can continue to push the cardboard out. Finally, the stacked cardboard will be transported to the output mechanism and then output.

[0023] The device can quickly stack cardboards and adjust the stacking height of the cardboards by adjusting the height limit component and the adjustment plate, effectively avoiding accidents caused by excessive cardboard stacking and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 This is an overall schematic diagram of the automatic cardboard conveying and stacking device;

[0026] Figure 2 This is a schematic diagram of the use status of the automatic cardboard conveying and stacking device;

[0027] Figure 3 This is the second schematic diagram of the use status of the automatic cardboard conveying and stacking device;

[0028] Figure 4 This is a schematic diagram of the internal structure of the automatic cardboard conveying and stacking device;

[0029] Figure 5 A schematic diagram of a push component of a cardboard automatic conveying and stacking device;

[0030] Figure 6 It is a detailed schematic diagram of the automatic cardboard conveying and stacking device;

[0031] Figure 7 A schematic diagram of the unlocking part of the automatic cardboard conveying and stacking device;

[0032] Figure 8 Schematic diagram of the lifting block of the automatic cardboard conveying and stacking device.

[0033] Markings in the figure:

[0034] 100, stacking mechanism; 101, input port; 102, stacking platform; 103, height limiting assembly; 104, lifting block; 105, longitudinal limiter; 106, transverse limiter; 107, unlocking member; 102a, output platform; 102b, guide rail groove; 102c, spring groove; 102d, spring; 103a, connecting plate; 103b, first telescopic rod; 103c, height limiting plate; 104a, top block; 104b, side block; 107a, pressure head; 107b, trigger head; 107c, deflection axis; 200 , regularizing mechanism; 201, motor; 202, screw; 203, pushing assembly; 201a, output head; 201b, transmission head; 201c, crawler; 201d, motor bracket; 203a, push plate; 203b, adjustment plate; 203c, support head; 203d, clamping strip; 203e, limit rotating shaft; 203f, deflection motor; 203g, second telescopic rod; 203h, movable joint; 203j, clamping slot; 203k, extrusion head; 300, input mechanism; 400, output mechanism; 500, cardboard. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Example: Refer to Figure 1 to Figure 8 , which is the first embodiment of the present invention, and provides an automatic cardboard conveying and stacking device, which includes an output mechanism 400 and an input mechanism 300, wherein the input mechanism 300 is used to input cardboard into the stacking device, and the output mechanism 400 is used to output the stacked cardboard;

[0039] The stacking mechanism 100 has a tidying mechanism 200 disposed therein, and the tidying mechanism 200 is used to sort the paperboards 500 inputted by the input mechanism 300;

[0040] The stacking mechanism 100 includes an input port 101. The input port 101 receives the cardboard 500 input from the input mechanism 300 through a stacking platform 102. The stacking platform 102 is tilted downward in the input port 101. A height limiting component 103 is provided above the stacking platform 102 near the output end. A transverse limiting member 106 and a longitudinal limiting member 105 are provided between the height limiting component 103 and the stacking platform 102 to block and limit the cardboard 500.

[0041] The tidying mechanism 200 is provided with a pushing assembly 203 that can move along the screw rod 202. The screw rod 202 is movably connected to the bottom surface of the stacking platform 102. The pushing assembly 203 can move in the groove of the stacking platform 102. The pushing assembly 203 will continuously squeeze the cardboard 500 during the movement.

[0042] like Figure 2 As shown, in order to ensure that the cardboard 500 can be smoothly transported away from the output platform 102a by the output mechanism 400, the length of the edge of the output platform 102a should be smaller than the length of the cardboard 500, that is, when the cardboard 500 is completely pushed onto the output platform 102a, part of the edge of the cardboard 500 is already on the output mechanism 400, and at the same time, the length of the screw rod 202 should cover the entire opening on the bottom surface of the stacking platform 102.

[0043] like Figure 4 As shown, the width of the opening on the stacking platform 102 should prevent the cardboard 500 from falling from the opening.

[0044] The stacking platform 102 includes an output platform 102a, which is close to the output end of the stacking platform 102. The inner wall of the upper groove of the stacking platform 102 is provided with a guide groove 102b and a spring groove 102c. The spring groove 102c is located above the guide groove 102b, and a spring 102d is provided in the spring groove 102c.

[0045] A transverse limiting member 106 is placed on the output platform 102a, and the transverse limiting member 106 is close to the end of the slot of the stacking platform 102. A longitudinal limiting member 105 is provided on one side of the transverse limiting member 106, and the longitudinal limiting member 105 is connected to the inner wall of the stacking mechanism 100. An unlocking member 107 is also provided opposite to the longitudinal limiting member 105. A plurality of unlocking members 107 are provided and linearly distributed, and the unlocking members 107 are placed in the slot of the inner wall of the stacking mechanism 100.

[0046] The longitudinal limiting member 105 is perpendicular to the output platform 102a.

[0047] Preferably, the longitudinal limiter 105 and the transverse limiter 106 are both electric locks, and the longitudinal limiter 105 and the transverse limiter 106 are protruding parts of the lock, and are not shown in the overall lock structure diagram.

[0048] When the cardboard 500 is pushed, the bottom cardboard 500 is first constrained by the longitudinal limiter 105 and the transverse limiter 106. The main function of the transverse limiter 106 is to prevent the pushing component 203 from continuing to translate. The function of the longitudinal limiter 105 is to block the cardboard 500 to prevent the upper part of the cardboard 500 from falling off from under the height limiting component 103 under the action of gravity and inertia when the cardboard 500 is pushed.

[0049] The height limiting component 103 is perpendicular to the output platform 102a, and includes a connecting plate 103a. Both ends of the connecting plate 103a are fixed to the inner wall of the stacking mechanism 100. The lower end of the connecting plate 103a is connected to the height limiting plate 103c through a first telescopic rod 103b, and the longitudinal limiting member 105 passes through the side of the height limiting plate 103c.

[0050] The lower end of the spring 102d is connected to the side block 104b of the lifting block 104. The side block 104b can move in the spring groove 102c. The side block 104b is placed on the side of the top block 104a. The lower end of the top block 104a is in the shape of an inverted quadrangular pyramid.

[0051] Preferably, there is a situation where some cardboards 500 are preferentially laid on the upper end surface of the stacking table 102. If there is no lifting block 104, multiple cardboards 500 are in a head-to-tail state. At this time, the pushing component 203 will press against the board surface of the pushing component 203 under the action of the cardboard 500 itself, affecting the movement of the pushing component 203. The role of the lifting block 104 is to solve this situation. Therefore, multiple lifting blocks 104 are arranged in the device, and each lifting block 104 is located at the place where two cardboards 500 are abutted, below the rear cardboard 500, with the direction close to the output end on the stacking table 102 as the front.

[0052] The unlocking member 107 is bent, with a pressure head 107a at one end and a trigger head 107b at the other end. The middle part of the unlocking member 107 is movably connected to the inner wall of the slot through a deflection shaft 107c, and a torsion spring is provided on the deflection shaft 107c.

[0053] Preferably, the trigger head 107b is an electrode sheet. When the unlocking member 107 is deflected, the trigger head 107b will fit with the trigger electrode sheet on the inner wall of the slot. When all the trigger heads 107b are triggered, the longitudinal limit member 105 and the transverse limit member 106 will release the constraint on the cardboard 500.

[0054] The screw rod 202 is driven by the motor 201 . The outer side of the motor 201 is fixed to the inner wall of the stacking mechanism 100 through the motor bracket 201 d . The screw rod 202 is parallel to the stacking platform 102 . The pushing assembly 203 is movably connected to the screw rod 202 .

[0055] The output end of the motor 201 is connected to the output head 201a, and the output head 201a is transmitted between the transmission head 201b at one end of the screw rod 202 through the crawler belt 201c, and the other end of the screw rod 202 is movably connected to the bottom surface of the output platform 102a.

[0056] The pushing assembly 203 includes a pushing plate 203a, which is provided with an opening, an adjusting plate 203b is provided in the opening, a supporting head 203c is provided at the outer end of the adjusting plate 203b, a clamping strip 203d is provided on the side of the adjusting plate 203b, and the clamping strip 203d is placed in a clamping groove 203j on the inner wall of the opening, and the adjusting plate 203b is connected to the pushing plate 203a by a second telescopic rod 203g.

[0057] Preferably, there are too many cardboards 500. Under the restriction of the height limiting component 103, the rated cardboards 500 are pushed out from the height limiting component 103, and the excess cardboards 500 will remain on the support head 203c. At this time, the push plate 203a will be reset under the action of the deflection motor 203f. At the beginning, the push plate 203a rotates 90° counterclockwise, and resets to rotate 90° clockwise. The retained cardboards 500 will remain on the stacking table 102, and then the pushing component 203 will move back to the starting position along the screw rod 202.

[0058] The two sides of the lower end of the push plate 203a are provided with a limit shaft 203e, which is connected to the output end of the deflection motor 203f. At the same time, the limit shaft 203e is movably connected to the extrusion heads 203k at both ends of the movable joint 203h, and the movable joint 203h is threadedly connected to the screw rod 202;

[0059] The length of the extrusion head 203 k is greater than the length of the side of the cardboard 500 parallel to the stacking platform 102 .

[0060] Preferably, during the movement of the pushing component 203, the extrusion head 203k will preferentially squeeze and trigger the lifting block 104, that is, push the lifting block 104 out, and use the lifting block 104 to stagger the two cardboards 500. The extrusion head 203k will trigger the lifting blocks 104 one by one during the movement of the pushing component 203.

[0061] Preferably, the displacement value of the height limiting plate 103c in the height limiting assembly 103 is consistent with the displacement value of the adjustment plate 203b, that is, the extension length of the first telescopic rod 103b is consistent with the extension length of the second telescopic rod 203g.

[0062] It should be noted that the push plate 203a always moves between the lifting blocks 104 on both sides of the stacking table 102, and the movement trajectory of the lifting blocks 104 does not conflict with the movement trajectory of the push plate 203a.

[0063] When in use, the input mechanism 300 inputs cardboard 500 into the stacking mechanism 100. The first cardboard will move to the lower end of the opening on the stacking table 102 under the action of gravity and inertia, and stop due to the constraint of the horizontal limiter 106. The subsequent cardboard 500 will continue to accumulate on the stacking table 102 in an inclined stacking state. When the cardboard 500 reaches a certain number, the specific number is set by the personnel, and then the input mechanism 300 stops inputting cardboard 500. At this time, the pushing component 203 rotates 90° counterclockwise and then moves along the screw rod 202. During the movement, the trigger The lifting block 104 is raised to lift and stagger part of the cardboard, and the pushing component 203 moves smoothly along the screw rod 202. When the height of the cardboard successfully reaches the height constrained by the height limiting component 103, during the pushing process of the cardboard 500, the edge compression of the cardboard 500 triggers all the unlocking parts 107, and the longitudinal limiting parts 105 and the transverse limiting parts 106 remove the constraints on the cardboard 500. The cardboard 500 is pushed to the output platform 102a by the pushing component 203 again. Then, under the action of friction, the cardboard 500 of the rated height is smoothly transported out from the output mechanism 400.

[0064] In summary, when the device receives cardboard, the cardboard will fall on the receiving platform of the device in an inclined state, and the cardboard will be accumulated inside the device in an inclined state. When the cardboard accumulates to a certain number, the pushing component 203 in the device will rotate 90°, and then move along the screw rod 202. During the movement of the screw rod 202, the cardboard will be squeezed by the screw rod 202. At the same time, during the movement of the screw rod 202, the extrusion head 203k will preferentially lift the lifting block 104, and use the lifting block 104 to stagger the cardboard, so that the screw rod 202 can smoothly gather the accumulated cardboard together. Finally, all the cardboards will be perpendicular to the longitudinal limit piece 105. When one end of the top cardboard is in contact with the longitudinal limit piece 105, all the unlocking pieces 107 are triggered by the cardboard, and the transverse limit piece 106 and the longitudinal limit piece 105 are retracted. The pushing component 203 can continue to push the cardboard out, and finally the folded cardboard will be transported to the output mechanism 400 and then output.

[0065] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0066] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0067] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A cardboard automatic conveying and stacking device, comprising an output mechanism (400) and an input mechanism (300), wherein the input mechanism (300) is used to input cardboard into the stacking device, and the output mechanism (400) is used to output the stacked cardboard, characterized in that: include, A stacking mechanism (100) is provided with a tidying mechanism (200) therein, wherein the tidying mechanism (200) is used to sort the paperboards (500) inputted by the input mechanism (300); The stacking mechanism (100) comprises an input port (101), the input port (101) receives the paperboard (500) input from the input mechanism (300) via a stacking platform (102), the stacking platform (102) is tilted downward in the input port (101), a height limiting component (103) is provided above the stacking platform (102) near the output end, and a transverse limiting component (106) and a longitudinal limiting component (105) are provided between the height limiting component (103) and the stacking platform (102) to block and limit the paperboard (500); The transverse limiting member (106) is located near the end of the slot of the stacking platform (102); the longitudinal limiting member (105) is provided on one side of the transverse limiting member (106); the longitudinal limiting member (105) is connected to the inner wall of the stacking mechanism (100); an unlocking member (107) is also provided opposite to the longitudinal limiting member (105); a plurality of unlocking members (107) are provided and are linearly distributed; the unlocking members (107) are placed in the slot of the inner wall of the stacking mechanism (100); The tidying mechanism (200) is provided with a pushing component (203) that can move along the screw rod (202), the screw rod (202) is movably connected to the bottom surface of the stacking platform (102), the pushing component (203) can move in the groove of the stacking platform (102), and the pushing component (203) will continuously squeeze the paperboard (500) during the movement; The unlocking member (107) is bent, one end of the unlocking member (107) is provided with a pressure head (107a), and the other end is provided with a trigger head (107b), the middle part of the unlocking member (107) is movably connected to the inner wall of the slot via a deflection shaft (107c), and a torsion spring is provided on the deflection shaft (107c); The stacking platform (102) comprises an output platform (102a), the output platform (102a) being close to the output end of the stacking platform (102), a guide rail groove (102b) and a spring groove (102c) being provided on the inner wall of the upper groove of the stacking platform (102), the spring groove (102c) being located above the guide rail groove (102b), and a spring (102d) being provided in the spring groove (102c); The lower end of the spring (102d) is connected to the side block (104b) of the lifting block (104); the side block (104b) is movable in the spring groove (102c); the side block (104b) is placed on the side of the top block (104a); and the lower end of the top block (104a) is in the shape of an inverted quadrangular pyramid; The pushing assembly (203) comprises a pushing plate (203a), the pushing plate (203a) is provided with an opening, an adjusting plate (203b) is provided in the opening, a supporting head (203c) is provided at the outer end of the adjusting plate (203b), a clamping strip (203d) is provided on the side of the adjusting plate (203b), the clamping strip (203d) is placed in a clamping groove (203j) on the inner wall of the opening, and the adjusting plate (203b) and the pushing plate (203a) are connected via a second telescopic rod (203g); A limit rotating shaft (203e) is provided on both sides of the lower end of the push plate (203a), the limit rotating shaft (203e) is connected to the output end of the deflection motor (203f), and the limit rotating shaft (203e) is movably connected to the extrusion heads (203k) at both ends of the movable joint (203h), and the movable joint (203h) is threadedly connected to the screw rod (202); The length of the extrusion head (203k) is greater than the length of a side of the paperboard (500) parallel to the stacking platform (102).

2. The automatic cardboard conveying and stacking device according to claim 1, characterized in that: The transverse limiting member (106) is placed on the output platform (102a), and the longitudinal limiting member (105) is in a vertical state with the output platform (102a).

3. The automatic cardboard conveying and stacking device according to claim 1, characterized in that: The height limiting component (103) is perpendicular to the output platform (102a), and comprises a connecting plate (103a), both ends of the connecting plate (103a) are fixed to the inner wall of the stacking mechanism (100), the lower end of the connecting plate (103a) is connected to the height limiting plate (103c) via a first telescopic rod (103b), and the longitudinal limiting member (105) passes through the side of the height limiting plate (103c).

4. The automatic cardboard conveying and stacking device according to claim 1, characterized in that: The screw rod (202) is driven by a motor (201); the outer side of the motor (201) is fixed to the inner wall of the stacking mechanism (100) via a motor bracket (201d); the screw rod (202) is parallel to the stacking platform (102); and the pushing assembly (203) is movably connected to the screw rod (202).

5. The automatic cardboard conveying and stacking device according to claim 4, characterized in that: The output end of the motor (201) is connected to an output head (201a), and the output head (201a) is transmitted through a crawler belt (201c) and a transmission head (201b) at one end of the screw rod (202), and the other end of the screw rod (202) is movably connected to the bottom surface of the output platform (102a).

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