LU505404B1

LU505404B1 - Device for arranging and shaping packaging boxes

Info

Publication number: LU505404B1
Application number: LU505404A
Authority: LU
Inventors: Shihua Yan; Zhongqiang Xie; Weili Lai; Kewei Deng; Yiqi Gan; Minze Li; Junguo Hu; Liwen Li
Original assignee: Guangdong Tobacco Yunfu Co Ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-05-02

Abstract

The utility model discloses a device for arranging and shaping packaging boxes, including a first conveyor belt, a second conveyor belt, and a shaping mechanism disposed between the first conveyor belt and the second conveyor belt, wherein conveying directions of the first conveyor belt and the second conveyor belt are the same; the shaping mechanism includes a rack, a first roller shaft disposed between the first conveyor belt and the second conveyor belt, a second roller shaft disposed under the first roller shaft, and a power mechanism enabling the first roller shaft and the second roller shaft to rotate around their own axes; a conveying surface of the first conveyor belt is lower than a top end of the second roller shaft; the axes of the first roller shaft and the second roller shaft are parallel to each other and on a same vertical plane; rotating directions of sides of the first roller shaft and the second roller shaft, which are close to each other, are parallel to the conveying direction of the first conveyor belt; and the conveying direction is from the first conveyor belt to the second conveyor belt. According to the device for arranging and shaping packaging boxes, packaging boxes can be arranged and shaped, and a distance between the packaging boxes can be controlled, so that the packaging boxes can be prevented from being stacked and extruding a packaging machine.

Description

BL-5769

DEVICE FOR ARRANGING AND SHAPING PACKAGING | U505404

BOXES

TECHNICAL FIELD

[0001] The utility model relates to the field of automatic material packaging technologies, and specifically, to a device for arranging and shaping packaging boxes.

BACKGROUND ART

[0002] After packaging boxes are filled, the packaging boxes are conveyed by a conveyor of a production line to a packaging machine for packaging. In a conveying process, the packaging boxes are placed at chaotic and uneven positions on the conveyor, which leads to a high defective rate of the packaging machine in a packaging process. As a result, reworking 1s required, and costs are wasted. In addition, densities of packaging boxes on different sections of the production line are different. As a result, the packaging boxes are prone to stack up, or a vacancy is formed. Because the packaging machine performs an intermittent movement, when the quantity of stacked packaging boxes is too large, a pushing force generated by the packaging machine is very large, which may pressure the packaging machine and stop the packaging machine, or may overturn the packaging boxes. This greatly affects the production efficiency of the packaging machine and the service lives of accessories. Moreover, mutual extrusion between packaging boxes makes the packaging boxes deform or even fall out of the conveyor.

[0003] In an automatic processing, producing, and detecting device for strip-shaped products, an output end of a power unit is in transmission connection with a feeding unit, an opening unit, an overturning unit, and a blanking unit. The feeding unit is disposed on a side at an upper portion of a rack. The opening unit is mounted on a side of the rack proximal to the feeding unit. A feeding end of the opening unit is butted with the feeding unit. A discharging end of the opening unit is butted with a side of the overturning unit. A first detecting unit is mounted at a position of the rack proximal to a rear end of the opening unit. The overturning unit is disposed at a middle portion of the rack. A second detecting unit is mounted at a position of the rack proximal to a rear end of the overturning unit. Limiting units are mounted at positions of the rack on two sides of the opening unit and the overturning unit, and extend from one side of the rack to the other side of the rack. On the premise that the production quality of strip-shaped products is ensured, the device improves the production and processing efficiency of the strip-shaped products and has good application space. 1

BL-5769

[0004] However, the foregoing solution is suitable for arranging and shaping of chopstick-like slender goods which need to be turned over, involves a complex structure, and thus is ny 505404 suitable for arranging and shaping of cuboid packaging boxes.

SUMMARY OF THE INVENTION

[0005] The utility model aims to overcome a deficiency that an automatic processing, producing, and detecting device for strip-shaped products in the prior art is not suitable for arranging and shaping of cuboid packaging boxes, and provides a device for arranging and shaping packaging boxes. According to the device for arranging and shaping packaging boxes, packaging boxes can be arranged and shaped, and a distance between the packaging boxes can be controlled, so that the packaging boxes can be prevented from being stacked and extruding a packaging machine.

[0006] The foregoing objective of the utility model may be achieved by using the following technical solutions:

[0007] A device for arranging and shaping packaging boxes is provided. The device includes a first conveyor belt, a second conveyor belt, and a shaping mechanism disposed between the first conveyor belt and the second conveyor belt, wherein conveying directions of the first conveyor belt and the second conveyor belt are the same. The shaping mechanism includes a rack, a second roller shaft disposed between the first conveyor belt and the second conveyor belt, a first roller shaft disposed above the second roller shaft, and a power mechanism enabling the first roller shaft and the second roller shaft to rotate around their own axes. A conveying surface of the first conveyor belt is lower than a top end of the second roller shaft. The axes of the first roller shaft and the second roller shaft are parallel to each other and on a same vertical plane.

Rotating directions of sides of the first roller shaft and the second roller shaft, which are close to each other, are parallel to the conveying direction of the first conveyor belt. The conveying direction is from the first conveyor belt to the second conveyor belt.

[0008] A production line conveys packaging boxes by using a conveying device. The packaging boxes are conveyed from the first conveyor belt to the second conveyor belt, that is, the conveying direction is from the first conveyor belt to the second conveyor belt. Originally, the packaging boxes are irregularly arranged on the first conveyor belt. The packaging boxes are neatly arranged and parallel to each other after entering the second conveyor belt through the shaping mechanism. Among three center lines of a cuboid packaging box, one is parallel to the conveying direction, and the other two are perpendicular to the conveying direction. In this case, the packaging boxes can enter the packaging machine very smoothly. The shaping mechanism may be a conveying mechanism whose width is narrowed to be consistent with a width of the packaging boxes. Therefore, it can be ensured that arranging directions of the packaging boxes 2

BL-5769 are consistent after the packaging boxes pass through the shaping mechanism. Alternatively, the shaping mechanism may also slightly intercept the packaging boxes, so that the packaging boxes 505404 are neatly butted with each other at shaping positions due to conveying inertia of the conveying device. Alternatively, the shaping mechanism may be of another structure that does not affect implementation of this solution.

[0009] In this solution, because the conveying surface of the first conveyor belt is lower than a top surface of the second roller shaft, when the packaging boxes move to the second roller shaft, the packaging boxes are intercepted at the second roller shaft due to a height difference between the second roller shaft and the first conveyor belt; the packaging boxes are first butted with the second roller shaft; then, due to inertia and continuous conveying of the first conveyor belt, the packaging boxes are butted with each other and arranged neatly at the second roller shaft; and subsequently, the packaging boxes move towards the second conveyor belt under the driving of the second roller shaft.

[0010] Further, tangential speeds of outer surfaces of the first roller shaft and the second roller shaft of the shaping mechanism, which are in contact with the packaging boxes, are slightly lower than a conveying speed of the first conveyor belt. Therefore, when the packaging boxes are conveyed to the shaping mechanism, the packaging boxes are stalled shortly and arranged neatly at the second roller shaft due to the relatively slow speed of the second roller shaft.

[0011] Further, the top end of the second roller shaft is flush with a conveying surface of the second conveyor belt. A rotational speed of the first roller shaft is greater than a rotational speed of the second roller shaft.

[0012] Because the top surface of the second roller shaft is flush with the second conveyor belt, the packaging boxes can enter the second conveyor belt smoothly, and packaging boxes that have been arranged neatly are prevented from shifting again when entering the second conveyor belt from the second roller shaft due to a height difference between the second roller shaft and the second conveyor belt. Because the rotational speed of the first roller shaft is greater than the rotational speed of the second roller shaft, and a top of the second roller shaft is higher than the conveying surface of the first conveyor belt, when passing through the second roller shaft, the packaging boxes rotate around an axis of the second roller shaft for a period of time. Moreover, because a larger radius leads to a larger tangential speed in a case that angular speeds are the same, the rotational speed of the first roller shaft is slightly greater than that of the second roller shaft. Therefore, it can be better ensured that the packaging boxes move along the second roller shaft and enter the second conveyor belt, and that the packaging boxes are prevented from shifting after passing through the first roller shaft and the second roller shaft. 3

BL-5769

[0013] Further, a pre-inputting mechanism capable of intercepting a packaging box on the first conveyor belt is disposed on a side of the shaping mechanism proximal to the first conveyor belt, 05804

[0014] The pre-inputting mechanism may be configured to control an entering speed of the packaging boxes. When a quantity of packaging boxes on the second conveyor belt is too large and may cause stacking, the pre-inputting mechanism may intercept the packaging boxes and prevent the packaging boxes from entering the shaping mechanism. The pre-inputting mechanism may be a lifting baffle, a bumping post or another structure that does not affect implementation of this solution. Moreover, the pre-inputting mechanism in the form of a baffle or the like further has a certain shaping function.

[0015] Further, the pre-inputting mechanism includes a pre-pressing plate disposed on the rack, and a driving mechanism connected to the pre-pressing plate and configured to drive the pre- pressing plate to intercept a packaging box.

[0016] Before the packaging box reaches the second roller shaft, the pre-pressing plate may be butted with the packaging box. The driving mechanism drives the pre-pressing plate to intercept the packaging box in a butted manner. When the packaging box is butted with the pre-pressing plate, a function similar to butting and aligning the second roller shaft with the packaging box can also be performed.

[0017] Other auxiliary devices such as a device for counting packaging boxes may also be disposed on the pre-inputting mechanism as required.

[0018] Further, the driving mechanism includes a first post and a second post that are disposed on a top surface of the pre-pressing plate and configured to fix the pre-pressing plate on the rack.

The first post and the second post are disposed in the conveying direction sequentially. One end of each of the first post and the second post is fixedly connected to the top surface of the pre- pressing plate. The other end of each of the first post and the second post is movably connected to the rack. Said other end of the first post is provided with an elastic member that exerts a force in the conveying direction on said other end of the first post. The driving mechanism further includes a telescopic device disposed on the rack, and a control device connected to the telescopic device. The telescopic device is capable of pushing a side of the pre-pressing plate proximal to the first post to move towards the first conveyor belt.

[0019] The control device is further connected to a sensor. The sensor may be disposed on the second conveyor belt to detect a density of packaging boxes, or may be disposed at an inlet of the packaging machine to detect whether there is a packaging box. In this way, the sensor transmits a signal to the control device. The control device determines whether to start the driving mechanism according to the signal of the sensor, so that the pre-pressing plate intercepts the packaging boxes to prevent the packaging boxes from being stacked. Alternatively, to 4

BL-5769 intercept the packaging boxes, the control device may control the rotational speeds and starting/stopping of the first roller shaft and the second roller shaft instead of using the pre 505404 inputting mechanism.

[0020] In this solution, a solution of starting the pre-pressing plate by the driving mechanism to intercept the packaging boxes is as follows: Under the action of the elastic member, the first post, and the second post, an initial state of the pre-pressing plate is an inclined state in which one side of the pre-pressing plate close to the first roller shaft in the conveying direction is inclined downward towards the first conveyor belt, and the other side of the pre-pressing plate is lifted up.

In this state, the packaging boxes are butted with the pre-pressing plate and cannot pass through the pre-pressing plate. In addition, the packaging boxes can be arranged neatly on the pre- pressing plate. When the packaging boxes are allowed to pass through the pre-pressing plate, the telescopic device is started under the control of the control device, and the telescopic device presses said other side of the pre-pressing plate downward towards the first conveyor belt, too. In this case, said one side of the pre-pressing plate inclined downward originally is lifted up, so that a gradient of the pre-pressing plate becomes too small to intercept the packaging boxes.

Therefore, the packaging boxes can pass through the pre-pressing plate. The telescopic device may be a telescopic cylinder or the like that does not affect implementation of this solution. Said one end of each of the first post and the second post is fixedly connected to the pre-pressing plate.

Said other end of each of the first post and the second post is movably connected to the rack. The movable connection may be slidable connection, hinged connection, or the like that does not affect implementation of this solution. The elastic member may be a spring or the like that does not affect implementation of this solution.

[0021] Further, the first post and the second post are inserted on the rack. A first shock- absorbing device is disposed between the rack and each of the first post and the second post.

[0022] When the pre-pressing plate intercepts a packaging box, packaging boxes conveyed on the first conveyor belt strike the pre-pressing plate, and the first post and the second post are movably connected to the rack. The first shock-absorbing device can reduce abrasion between the rack and each of the first post and the second post.

[0023] Further, an auxiliary mechanism that buffers a packaging box when the packaging box enters the second conveyor belt is further included. The auxiliary mechanism is disposed on a side of the shaping mechanism proximal to the second conveyor belt.

[0024] The auxiliary mechanism is configured to buffer a packaging box when the packaging box enters the second conveyor belt after passing through the shaping mechanism, so that the following problem can be avoided: Packaging boxes shift due to a speed difference between the

BL-5769 shaping mechanism and the second conveyor belt when entering the second conveyor belt after passing through the shaping mechanism, and thus cannot enter the second conveyor belt neatly. 17005606

[0025] Further, the auxiliary mechanism includes a bracket movably connected to the rack, and an auxiliary roller shaft disposed on the bracket and capable of rotating around its own axis. The axis of the auxiliary roller shaft 1s parallel to the axis of the first roller shaft.

[0026] Because there is a speed difference between the first roller shaft and the second roller shaft, there may be a speed difference between the second roller shaft and the second conveyor belt. As a result, a joint between the second roller shaft and the second conveyor belt may make a packaging box shift. Therefore, disposing of the auxiliary roller shaft can prevent packaging boxes that enter the second conveyor belt after being arranged and shaped by the first roller shaft and the second roller shaft from shifting again. The auxiliary roller shaft can perform a function similar to blocking packaging boxes by the second roller shaft to make the packaging boxes be arranged neatly. However, the auxiliary roller shaft may rotate freely rather than actively rotating by using a power electrode.

[0027] Further, a second shock-absorbing device is disposed between the bracket and the rack.

[0028] Because the packaging boxes constantly strike the auxiliary roller shaft when passing through the auxiliary roller shaft, and the bracket is movably connected to the rack, the second shock-absorbing device can reduce abrasion between the bracket and the rack.

[0029] Further, rubber layers used for increasing friction and buffering are disposed on surfaces of the first roller shaft, the second roller shaft, and the auxiliary roller shaft.

[0030] When the packaging boxes are conveyed by the first conveyor belt to the second roller shaft, the second roller shaft is slightly higher than the conveying surface of the first conveyor belt. Because the surfaces of the first roller shaft and the second roller shaft are provided with the rubber layers, friction between a packaging box and each of the first roller shaft and the second roller shaft can be enlarged. This ensures that the packaging box can be better conveyed to the second conveyor belt, and prevents the packaging box from slipping on the shaping mechanism.

In addition, because rubber has certain elasticity, the rubber layers can also prevent the packaging box from striking or deforming at the pre-pressing plate or the second roller shaft.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] (1) The packaging boxes are conveyed to the second roller shaft. Because the top surface of the second roller shaft is higher than the conveying surface of the first conveyor belt, the packaging boxes are intercepted and arranged neatly. Then, under the driving of the first roller shaft and the second roller shaft, the packaging boxes are arranged neatly and enter the second conveyor belt in a certain placing direction. This facilitates subsequent production processes such as a packaging operation of the packaging machine. 6

BL-5769

[0033] (2) Due to intelligent interception of the pre-inputting mechanism, a quantity of packaging boxes passing through the pre-inputting mechanism can be controlled. This prevents 505404 the packaging boxes from being stacked on the second conveyor belt, and thus affecting the work efficiency and the service life of the packaging machine.

[0034] (3) The device has a simple overall structure, and thus is convenient to manufacture and use.

BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG. 1 is a schematic diagram of an inner structure according to the utility model;

[0036] FIG. 2 is a schematic diagram of an overall structure according to the utility model; and

[0037] FIG. 3 is a schematic diagram of an overall structure from another angle of view according to the utility model.

[0038] Reference numerals in the accompanying drawings are as follows:

[0039] 11-first conveyor belt; 12-second conveyor belt; 21-first roller shaft; 22-second roller shaft; 23-rack; 31-pre-pressing plate; 32-first post; 33-second post; 34-telescopic device; 35- elastic member; 36-first shock-absorbing device; 41-auxiliary roller shaft; 42-bracket; 43-second shock-absorbing device; and 5-packaging box.

DETAILED DESCRIPTION

[0040] The utility model is further described below with reference to specific embodiments. The accompanying drawings are only for illustrative description, represent only schematic diagrams rather than physical diagrams, and thus should not be construed as a limitation to the present patent. In order to better describe embodiments of the utility model, some components may be omitted, enlarged or reduced in the accompanying drawings, and the accompanying drawings do not represent actual structures of a product. Those skilled in the art should understand that some well-known structures and descriptions thereof may be omitted in the accompanying drawings.

[0041] In the accompanying drawings of the embodiments of the utility model, the same or similar reference numerals denote the same or similar components. In the description of the utility model, it should be understood that orientations or position relationships indicated by terms, if any, such as "upper", "lower", "left", or "right" are orientations or position relationships shown in the accompanying drawings, and these terms are just used to facilitate description of the utility model and simplify the description, but not to indicate or imply that the mentioned devices or elements must have a specific orientation or must be constructed and operated in a specific orientation. Therefore, the terms for describing position relationships in the accompanying drawings are only for illustrative description but should not be construed as a 7

BL-5769 limitation to the present patent. A person of ordinary skill in the art may interpret the specific meaning of the above terms according to specific conditions. 17005606

[0042] Embodiment 1

[0043] As shown in FIG. 1 to FIG. 3, a device for arranging and shaping packaging boxes is provided. The device includes a first conveyor belt 11, a second conveyor belt 12, and a shaping mechanism disposed between the first conveyor belt 11 and the second conveyor belt 12, wherein conveying directions of the first conveyor belt and the second conveyor belt are the same. The shaping mechanism includes a rack 23, a second roller shaft 22 disposed between the first conveyor belt 11 and the second conveyor belt 12, a first roller shaft 21 disposed above the second roller shaft 22, and a power mechanism enabling the first roller shaft 21 and the second roller shaft 22 to rotate around their own axes. À conveying surface of the first conveyor belt 11 is lower than a top end of the second roller shaft 22. The axes of the first roller shaft 21 and the second roller shaft 22 are parallel to each other and on a same vertical plane. Rotating directions of sides of the first roller shaft 21 and the second roller shaft 22, which are close to each other, are parallel to the conveying direction of the first conveyor belt 11. The conveying direction 1s from the first conveyor belt 11 to the second conveyor belt 12.

[0044] A production line conveys packaging boxes 5 by using a conveying device. The packaging boxes 5 are conveyed from the first conveyor belt 11 to the second conveyor belt 12, that is, the conveying direction is from the first conveyor belt 11 to the second conveyor belt 12.

Originally, the packaging boxes 5 are irregularly arranged on the first conveyor belt 11. The packaging boxes 5 are neatly arranged and parallel to each other after entering the second conveyor belt 12 through the shaping mechanism. Among three center lines of a cuboid packaging box 5, one is parallel to the conveying direction, and the other two are perpendicular to the conveying direction. In this case, the packaging boxes 5 can enter the packaging machine very smoothly. The shaping mechanism may be a conveying mechanism whose width is narrowed to be consistent with a width of the packaging boxes 5. Therefore, it can be ensured that arranging directions of the packaging boxes 5 are consistent after the packaging boxes 5 pass through the shaping mechanism. Alternatively, the shaping mechanism may also slightly intercept the packaging boxes 5, so that the packaging boxes 5 are neatly butted with each other at shaping positions due to conveying inertia of the conveying device. Alternatively, the shaping mechanism may be of another structure that does not affect implementation of this solution.

[0045] In this solution, because the conveying surface of the first conveyor belt 11 is lower than a top surface of the second roller shaft 22, when the packaging boxes 5 move to the second roller shaft 22, the packaging boxes 5 are intercepted at the second roller shaft 22 due to a height difference between the second roller shaft 22 and the first conveyor belt 11; the packaging boxes 8

BL-5769 are first butted with the second roller shaft 22; then, due to inertia and continuous conveying of the first conveyor belt 11, the packaging boxes 5 are butted with each other and arranged neatly 9408 at the second roller shaft 22; and subsequently, the packaging boxes 5 move towards the second conveyor belt 12 under the driving of the second roller shaft 22. An arrow direction shown in

FIG. 1 is the conveying direction of the packaging boxes 5. The power mechanism includes two motors that are respectively connected to the first roller shaft 21 and the second roller shaft 22.

[0046] As shown in FIG. 1 to FIG. 3, tangential speeds of outer surfaces of the first roller shaft 21 and the second roller shaft 22 of the shaping mechanism, which are in contact with the packaging boxes 5, are slightly lower than a conveying speed of the first conveyor belt 11.

Therefore, when the packaging boxes 5 are conveyed to the shaping mechanism, the packaging boxes 5 are stalled shortly and arranged neatly at the second roller shaft 22 due to the relatively slow speed of the second roller shaft 22.

[0047] As shown in FIG. 1 to FIG. 3, the top end of the second roller shaft 22 is flush with a conveying surface of the second conveyor belt 12; and a rotational speed of the first roller shaft 21 is greater than a rotational speed of the second roller shaft 22.

[0048] Because the top surface of the second roller shaft 22 is flush with the second conveyor belt 12, the packaging boxes 5 can enter the second conveyor belt 12 smoothly, and packaging boxes 5 that have been arranged neatly are prevented from shifting again when entering the second conveyor belt 12 from the second roller shaft 22 due to a height difference between the second roller shaft 22 and the second conveyor belt 12. Because the rotational speed of the first roller shaft 21 is greater than the rotational speed of the second roller shaft 22, and a top of the second roller shaft 22 is higher than the conveying surface of the first conveyor belt, when passing through the second roller shaft 22, the packaging boxes 5 rotate around an axis of the second roller shaft 22 for a period of time. Moreover, because a larger radius leads to a larger tangential speed in a case that angular speeds are the same, the rotational speed of the first roller shaft 21 is slightly greater than that of the second roller shaft 22. Therefore, it can be better ensured that the packaging boxes 5 move along the second roller shaft 22 and enter the second conveyor belt 12, and that the packaging boxes 5 are prevented from shifting after passing through the first roller shaft 21 and the second roller shaft 22.

[0049] As shown in FIG. 1 to FIG. 3, a pre-inputting mechanism capable of intercepting a packaging box 5 on the first conveyor belt 11 is disposed on a side of the shaping mechanism proximal to the first conveyor belt 11.

[0050] The pre-inputting mechanism may be configured to control an entering speed of the packaging boxes 5. When a quantity of packaging boxes 5 on the second conveyor belt 12 is too large and may cause stacking, the pre-inputting mechanism may intercept the packaging boxes 5 9

BL-5769 and prevent the packaging boxes 5 from entering the shaping mechanism. The pre-inputting mechanism may be a lifting baffle, a bumping post or another structure that does not affect 505404 implementation of this solution. Moreover, the pre-inputting mechanism in the form of a baffle or the like further has a certain shaping function.

[0051] As shown in FIG. 1 to FIG. 3, the pre-inputting mechanism includes a pre-pressing plate 31 disposed on the rack 23, and a driving mechanism connected to the pre-pressing plate 31 and configured to drive the pre-pressing plate 31 to intercept a packaging box 5.

[0052] Before the packaging box 5 reaches the second roller shaft 22, the pre-pressing plate 31 may be butted with the packaging box 5. The driving mechanism drives the pre-pressing plate 31 to intercept the packaging box 5 in a butted manner. When the packaging box 5 is butted with the pre-pressing plate 31, a function similar to butting and aligning the second roller shaft 22 with the packaging box 5 can also be performed.

[0053] Other auxiliary devices such as a device for counting packaging boxes 5 may also be disposed on the pre-inputting mechanism as required.

[0054] As shown in FIG. 1 to FIG. 3, the driving mechanism includes a first post 32 and a second post 33 that are disposed on a top surface of the pre-pressing plate 31 and configured to fix the pre-pressing plate 31 on the rack 23; the first post 32 and the second post 33 are disposed in the conveying direction sequentially; one end of each of the first post 32 and the second post 33 is fixedly connected to the top surface of the pre-pressing plate 31; the other end of each of the first post 32 and the second post 33 is movably connected to the rack 23; said other end of the first post 32 is provided with an elastic member 35 that exerts a force in the conveying direction on said other end of the first post 32; the driving mechanism further includes a telescopic device 34 disposed on the rack 23, and a control device connected to the telescopic device 34; and the telescopic device 34 is capable of pushing a side of the pre-pressing plate 31 proximal to the first post 32 to move towards the first conveyor belt 11.

[0055] The control device is further connected to a sensor. The sensor may be disposed on the second conveyor belt 12 to detect a density of packaging boxes 5, or may be disposed at an inlet of the packaging machine to detect whether there is a packaging box 5. In this way, the sensor transmits a signal to the control device. The control device determines whether to start the driving mechanism according to the signal of the sensor, so that the pre-pressing plate 31 intercepts the packaging boxes 5 to prevent the packaging boxes 5 from being stacked.

Alternatively, to intercept the packaging boxes 5, the control device may control the rotational speeds and starting/stopping of the first roller shaft 21 and the second roller shaft 22 instead of using the pre-inputting mechanism.

BL-5769

[0056] In this solution, a solution of starting the pre-pressing plate 31 by the driving mechanism to intercept the packaging boxes 5 is as follows: Under the action of the elastic member 35, the 505404 first post 32, and the second post 33, an initial state of the pre-pressing plate 31 is an inclined state in which one side of the pre-pressing plate 31 close to the first roller shaft 21 in the conveying direction is inclined downward towards the first conveyor belt 11, and the other side of the pre-pressing plate 31 is lifted up. In this state, the packaging boxes 5 are butted with the pre-pressing plate 31 and cannot pass through the pre-pressing plate 31. In addition, the packaging boxes 5 can be arranged neatly on the pre-pressing plate 31. When the packaging boxes 5 are allowed to pass through the pre-pressing plate 31, the telescopic device 34 is started under the control of the control device, and the telescopic device 34 presses said other side of the pre-pressing plate 31 downward towards the first conveyor belt 11, too. In this case, said one side of the pre-pressing plate 31 inclined downward originally is lifted up, so that a gradient of the pre-pressing plate 31 becomes too small to intercept the packaging boxes 5. Therefore, the packaging boxes 5 can pass through the pre-pressing plate 31. The telescopic device 34 may be a telescopic cylinder or the like that does not affect implementation of this solution. Said one end of each of the first post 32 and the second post 33 is fixedly connected to the pre-pressing plate 31. Said other end of each of the first post 32 and the second post 33 is movably connected to the rack 23. The movable connection may be slidable connection, hinged connection, or the like that does not affect implementation of this solution. The elastic member 35 may be a spring or the like that does not affect implementation of this solution.

[0057] As shown in FIG. 1 to FIG. 3, the first post 32 and the second post 33 are inserted on the rack 23; and a first shock-absorbing device 36 is disposed between the rack 23 and each of the first post 32 and the second post 33.

[0058] When the pre-pressing plate 31 intercepts a packaging box 5, packaging boxes 5 conveyed on the first conveyor belt strike the pre-pressing plate 31, and the first post 32 and the second post 33 are movably connected to the rack 23. The first shock-absorbing device 36 can reduce abrasion between the rack 23 and each of the first post 32 and the second post 33.

[0059] As shown in FIG. 1 to FIG. 3, an auxiliary mechanism that buffers a packaging box 5 when the packaging box 5 enters the second conveyor belt 12 is further included. The auxiliary mechanism is disposed on a side of the shaping mechanism proximal to the second conveyor belt 12.

[0060] The auxiliary mechanism is configured to buffer a packaging box 5 when the packaging box 5 enters the second conveyor belt 12 after passing through the shaping mechanism, so that the following problem can be avoided: Packaging boxes 5 shift due to a speed difference between the shaping mechanism and the second conveyor belt 12 when entering the second 11

BL-5769 conveyor belt 12 after passing through the shaping mechanism, and thus cannot enter the second conveyor belt 12 neatly. 17005606

[0061] As shown in FIG. 1 to FIG. 3, the auxiliary mechanism includes a bracket 42 movably connected to the rack 23, and an auxiliary roller shaft 41 disposed on the bracket 42 and capable of rotating around its own axis; and the axis of the auxiliary roller shaft 41 is parallel to the axis of the first roller shaft 21.

[0062] Because there is a speed difference between the first roller shaft 21 and the second roller shaft 22, there may be a speed difference between the second roller shaft 22 and the second conveyor belt 12. As a result, a joint between the second roller shaft 22 and the second conveyor belt 12 may make a packaging box 5 shift. Therefore, disposing of the auxiliary roller shaft 41 can prevent packaging boxes 5 that enter the second conveyor belt 12 after being arranged and shaped by the first roller shaft 21 and the second roller shaft 22 from shifting again. The auxiliary roller shaft 41 can perform a function similar to blocking packaging boxes 5 by the second roller shaft 22 to make the packaging boxes 5 be arranged neatly. However, the auxiliary roller shaft 41 may rotate freely rather than actively rotating by using a power electrode.

[0063] As shown in FIG. 1 to FIG. 3, a second shock-absorbing device 43 is disposed between the bracket 42 and the rack 23.

[0064] Because the packaging boxes 5 constantly strike the auxiliary roller shaft 41 when passing through the auxiliary roller shaft 41, and the bracket 42 is movably connected to the rack 23, the second shock-absorbing device 43 can reduce abrasion between the bracket 42 and the rack 23.

[0065] As shown in FIG. 1 to FIG. 3, rubber layers used for increasing friction and buffering are disposed on surfaces of the first roller shaft 21, the second roller shaft 22, and the auxiliary roller shaft 41.

[0066] When the packaging boxes 5 are conveyed by the first conveyor belt 11 to the second roller shaft 22, the second roller shaft 22 is slightly higher than the conveying surface of the first conveyor belt 11. Because the surfaces of the first roller shaft 21 and the second roller shaft 22 are provided with the rubber layers, friction between a packaging box 5 and each of the first roller shaft 21 and the second roller shaft 22 can be enlarged. This ensures that the packaging box 5 can be better conveyed to the second conveyor belt 12, and prevents the packaging box 5 from slipping on the shaping mechanism. In addition, because rubber has certain elasticity, the rubber layers can also prevent the packaging box 5 from striking or deforming at the pre-pressing plate 31 or the second roller shaft 22.

[0067] Embodiment 2 12

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[0068] This embodiment is similar to embodiment 1, and differs from embodiment 1 in the following: The telescopic device 34 is a telescopic cylinder. The elastic member 35 is a spring. 05404

The first shock-absorbing device 36 is a shock-absorbing block disposed at a top of the first post.

The shock-absorbing block is fixedly connected to the first post 32. The first post 32 is movably connected to the rack, and is inserted on the rack. The shock-absorbing block prevents the first post 32 from falling towards the first conveyor belt 11. The second shock-absorbing device 43 is a buffering gasket arranged between the second bracket 42 and the rack 23.

[0069] Embodiment 3

[0070] This embodiment is similar to embodiment 1, and differs from embodiment 1 in the following: The driving mechanism includes a telescopic cylinder disposed on the rack 23, and a control device connected to the telescopic cylinder. A telescopic rod of the telescopic cylinder is fixedly connected to the pre-pressing plate 31. Under the action of the telescopic cylinder, the pre-pressing plate 31 may be lifted up or lowered in a direction perpendicular to the conveying direction of the packaging box 5, so that the packaging box 5 is intercepted or is allowed to pass through the pre-pressing plate 31. A telescopic rod may be slidably connected to the rack 23. The conveying direction is perpendicular to the pre-pressing plate 31.

[0071] Apparently, the above embodiments of the utility model are merely examples provided for describing the utility model clearly, and are not intended to limit embodiments of the utility model. A person of ordinary skill in the art may make modifications or variations in other forms based on the above description. There are no need and no way to exhaust all the embodiments.

Any modifications, equivalent replacements, improvements and the like made within the spirit and principles of the utility model should be included within the protection scope of the utility model. 13

Claims

BL-5769 CLAIMS LU505404

1. A device for arranging and shaping packaging boxes, comprising: a first conveyor belt (11), a second conveyor belt (12), and a shaping mechanism disposed between the first conveyor belt (11) and the second conveyor belt (12), wherein conveying directions of the first conveyor belt (11) and the second conveyor belt (12) are the same; the shaping mechanism comprises a rack (23), a second roller shaft (22) disposed between the first conveyor belt (11) and the second conveyor belt (12), a first roller shaft (21) disposed above the second roller shaft (22), and a power mechanism enabling the first roller shaft (21) and the second roller shaft (22) to rotate around their own axes; a conveying surface of the first conveyor belt (11) is lower than a top end of the second roller shaft; the axes of the first roller shaft (21) and the second roller shaft (22) are parallel to each other and on a same vertical plane; rotating directions of sides of the first roller shaft (21) and the second roller shaft (22), which are close to each other, are parallel to the conveying direction of the first conveyor belt (11); and the conveying direction is from the first conveyor belt (11) to the second conveyor belt (12).

2. The device for arranging and shaping packaging boxes according to claim 1, wherein the top end of the second roller shaft (22) is flush with a conveying surface of the second conveyor belt (12); and a rotational speed of the first roller shaft (21) is greater than a rotational speed of the second roller shaft (22).

3. The device for arranging and shaping packaging boxes according to claim 1 or 2, wherein a pre-inputting mechanism capable of intercepting a packaging box on the first conveyor belt (11) is disposed on a side of the shaping mechanism proximal to the first conveyor belt (11).

4. The device for arranging and shaping packaging boxes according to claim 3, wherein the pre-inputting mechanism comprises a pre-pressing plate (31) disposed on the rack (23), and a driving mechanism connected to the pre-pressing plate (31) and configured to drive the pre- pressing plate (31) to intercept a packaging box.

5. The device for arranging and shaping packaging boxes according to claim 4, wherein the driving mechanism comprises a first post (32) and a second post (33) that are disposed on a top surface of the pre-pressing plate (31) and configured to fix the pre-pressing plate (31) on the rack (23); the first post (32) and the second post (33) are disposed in the conveying direction sequentially; one end of each of the first post (32) and the second post (33) is fixedly connected 14

BL-5769 to the top surface of the pre-pressing plate (31); the other end of each of the first post (32) and the second post (33) is movably connected to the rack (23); said other end of the first post (32) is 505404 provided with an elastic member (35) that exerts a force in the conveying direction on said other end of the first post (32); the driving mechanism further comprises a telescopic device (34) disposed on the rack (23), and a control device connected to the telescopic device (34); and the telescopic device (34) is capable of pushing a side of the pre-pressing plate (31) proximal to the first post (32) to move towards the first conveyor belt (11).

6. The device for arranging and shaping packaging boxes according to claim 5, wherein the first post (32) and the second post (33) are inserted on the rack (23); and a first shock-absorbing device (36) is disposed between the rack (23) and each of the first post (32) and the second post (33).

7. The device for arranging and shaping packaging boxes according to claim 1 or 2, further comprising an auxiliary mechanism that buffers a packaging box when the packaging box enters the second conveyor belt (12), wherein the auxiliary mechanism is disposed on a side of the shaping mechanism proximal to the second conveyor belt (12).

8. The device for arranging and shaping packaging boxes according to claim 7, wherein the auxiliary mechanism comprises a bracket (42) movably connected to the rack (23), and an auxiliary roller shaft (41) disposed on the bracket (42) and capable of rotating around its own axis; and the axis of the auxiliary roller shaft (41) is parallel to the axis of the first roller shaft (21).

9. The device for arranging and shaping packaging boxes according to claim 8, wherein a second shock-absorbing device (43) 1s disposed between the bracket (42) and the rack.

10. The device for arranging and shaping packaging boxes according to claim 8 or 9, wherein rubber layers used for increasing friction and buffering are disposed on surfaces of the first roller shaft (21), the second roller shaft (22), and the auxiliary roller shaft (41).