A palletizing device for packaging boxes

Abstract

The present invention relates to the technical field of packing box palletizing, and specifically to a packing box palletizing device. The technical problem to be solved by the present invention is: usually in the process of palletizing, a large number of pneumatic and electric drive devices are used, which increases the production cost of the palletizing device and increases the energy loss during later use, thereby increasing the production cost and reducing the production efficiency. The technical solution is: provide a packing box palletizing device, including a support frame, the inner side of which is rotatably connected to a first conveyor belt via a rotating shaft. The beneficial effect of the present invention is: the present invention utilizes the coordinated use of a lifting unit, a sorting unit and a pushing mechanism, and realizes the process of stacking, sorting and pushing the packing boxes with the least electric drive, avoiding the use of a large number of electric and pneumatic drive devices, reducing the production cost of the palletizing device, thereby avoiding the energy loss during later use, saving the production cost for the user, and improving the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of packaging box palletizing, in particular to a packaging box palletizing device. Background Art

[0002] The palletizing device for packaging boxes is an important part of the automated production line. It is mainly used to stack packaging boxes neatly according to a certain pattern to facilitate subsequent warehousing and logistics transportation. The palletizing device can improve packaging efficiency, reduce logistics costs, and improve the stability of products during storage and transportation.

[0003] Usually, in the process of palletizing, a large number of pneumatic and electric drive devices are used, which increases the production cost of the palletizing device and increases the energy loss during later use, thereby increasing the production cost and reducing the production efficiency.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing palletizing devices on the market, and even if they can be solved, they need to be solved with the cooperation of external tools, which cannot achieve the desired effect. Therefore, we propose a palletizing device for packaging boxes. Summary of the invention

[0005] The object of the present invention is to provide a palletizing device for packaging boxes to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a stacking device for packaging boxes, comprising a support frame, the inner side of the support frame is rotatably connected to a first conveyor belt through a rotating shaft, a second conveyor belt is arranged at one end of the first conveyor belt, two extension rods are fixedly connected to the bottom of the support frame, one side of the two extension rods is commonly fixedly connected to a controller, the controller is used to control the overall power supply, and a stacking mechanism is arranged on the surface of the first conveyor belt;

[0007] The stacking mechanism comprises a lifting unit, which is arranged at the bottom of the first conveyor belt and is used to adjust the height of one end of the first conveyor belt;

[0008] The stacking mechanism further includes a sorting unit, the number of which is several, and the sorting unit is arranged on one side of the first conveyor belt. The lifting unit is used in conjunction with the sorting unit, and the sorting unit is used to sort the verticality of the packaging boxes stacked to a certain height;

[0009] A pushing mechanism is provided on one side of the first conveyor belt. The pushing mechanism is used in conjunction with the palletizing mechanism. The pushing mechanism is used to push the palletized packaging boxes to the next production link.

[0010] Preferably, the lifting unit includes a screw rod, which is rotatably connected to the opposite sides of the two extension rods, and the surface of the screw rod is rotatably connected to the inner walls of the two extension rods, one side of one of the extension rods is fixedly connected to a motor via a fixed block, the output end of the motor is fixedly connected to one end of the screw rod, the surface of the screw rod is threadedly connected to a threaded sleeve, the surface of the threaded sleeve is rotatably connected to a connecting rod, the bottom of the first conveyor belt is fixedly connected to two mounting blocks, the opposite sides of the two mounting blocks are fixedly connected to connecting columns, the surface of the connecting column is rotatably connected to a connecting sleeve through a bearing, the connecting sleeve is fixedly connected to one end of the connecting rod, one end of the support frame is fixedly connected to two positioning plates, one side of the two positioning plates is provided with a guide hole, both sides of the first conveyor belt are fixedly connected to guide rods, and the surface of the guide rods is slidably connected to the inner cavity of the guide hole.

[0011] The two wheels respectively have a first end in contact with each other, and the second end is fixedly connected to the two wheels at two opposite sides of the two wheels, and the two wheels are connected with the two wheels respectively.

[0012] Preferably, a first spring is fixedly connected to one side of the side plate, the first spring is sleeved on the surface of the sliding rod, one end of the first spring is fixedly connected to one side of the block, a positioning bar is fixedly connected to one side of the side plate, a second spring is fixedly connected to the top of the positioning bar, and the top of the second spring is fixedly connected to the bottom of the pressure plate.

[0013] Preferably, a strip hole is opened on one side of the pressure plate, the surface of the rotating rod is rotatably connected to the inner cavity of the strip hole, one end of the rotating rod is fixedly connected to a limiting block, and one side of the limiting block contacts one side of the pressure plate.

[0014] Preferably, the pushing mechanism includes a pushing plate, which is slidably connected between the two side plates, the surface of the pushing plate is fixedly connected with a push rod, the surface of the push rod is slidably connected to the inner wall of the bottom plate, the inner wall of the bottom plate is provided with a trapezoidal groove, the bottom of the push rod is fixedly connected with a push block, and the push block is slidably connected to the inner cavity of the trapezoidal groove, one side of the second conveyor belt is fixedly connected to a multiple telescopic rod through a fixed block, the surface of the innermost rod of the multiple telescopic rod is fixedly connected to two limiting plates, one side of the two limiting plates is commonly fixedly connected to a third spring, the third spring is sleeved on the surface of the telescopic end of the multiple telescopic rod, one end of the third spring is fixedly connected to one end of the outermost rod of the multiple telescopic rod, the telescopic end of the multiple telescopic rod is used in conjunction with the push block, and the inclined surface of the trapezoidal groove is used in conjunction with the multiple telescopic rod.

[0015] Preferably, a guide groove is provided on the inner wall of the bottom plate, the guide groove is communicated with the trapezoidal groove, a moving block is fixedly connected to the bottom of the push block, and the moving block is slidably connected to the inner cavity of the guide groove.

[0016] Preferably, the inner cavity of the guide groove is fixedly connected to a guide column, the inner wall of the movable block is slidably connected to the surface of the guide column, the surface of the guide column is sleeved with a fourth spring, one end of the fourth spring is fixedly connected to the inner wall of the guide groove, and the other end of the fourth spring is fixedly connected to one side of the movable block.

[0017] Preferably, one side of two of the side panels is fixedly connected with an inclined plate, the inclined surface of the inclined plate is used in conjunction with the multiple telescopic rods, and one side of several of the side panels is fixedly connected with a connecting plate, and the connecting plate is used to fill the gap between the two sorting units.

[0018] Preferably, the tops of the two side plates are provided with limiting grooves, and both ends of the top of the pushing plate are fixedly connected to limiting strips, and the limiting strips are slidably connected to the inner cavities of the limiting grooves.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention utilizes a lifting unit, through the positive rotational force provided by the motor, to drive the screw to rotate, driving the threaded sleeve to move forward on the surface of the screw, so that one end of the first conveyor belt is displaced upward, which is convenient for increasing the stacking height of the packaging boxes when stacking. Through the reversal of the motor, the screw can be reversed, so that the threaded sleeve is withdrawn in the reverse direction, so that one end of the first conveyor belt is restored to its original height, which increases the convenience of adjusting the height of the packaging boxes conveyed by the first conveyor belt.

[0021] 2. The present invention utilizes a sorting unit, and when one end of the first conveyor belt is lifted and reset, it drives the pressure plate to move up and down, lifts up and presses down the pressure plate, thereby driving the special-shaped block to move vertically, and the inclined surface of the special-shaped block contacts the roller to squeeze the roller, thereby horizontally squeezing the card block, the sliding rod and the sorting plate, and through the relative movement of the two sorting plates, the packaging boxes stacked between the two are sorted to ensure the verticality of the stack.

[0022] 3. The present invention utilizes a pushing mechanism, and through the coordinated use of multiple telescopic rods and a third spring, provides a driving force for the stacked packaging boxes. The operation of the second conveyor belt cooperates with the side plate and the bottom plate on the top thereof to compress the multiple telescopic rods and the third spring. When the entrance of the trapezoidal groove moves to the telescopic end of the multiple telescopic rod, the multiple telescopic rod cooperates with the reaction force of the third spring to push the push block, the push rod and the push plate, thereby pushing the stacked packaging boxes to the next production link. Through the coordinated use of the lifting unit, the sorting unit and the pushing mechanism, the process of stacking, sorting and pushing the packaging boxes is realized with minimal electric drive, avoiding the use of a large number of electric and pneumatic drive devices, reducing the production cost of the stacking device, thereby avoiding energy loss during later use, saving production costs for users, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the lifting unit of the present invention;

[0025] Figure 3 It is a first stereoscopic schematic diagram of the arranging unit of the present invention;

[0026] Figure 4 is a second stereoscopic schematic diagram of the arranging unit of the present invention;

[0027] Figure 5 is a three-dimensional schematic diagram of a multiple telescopic rod of the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of a cross section of a trapezoidal groove of the present invention;

[0029] Figure 7 It is an exploded schematic diagram of the moving block, the guide column and the fourth spring of the present invention;

[0030] Figure 8 It is a three-dimensional schematic diagram of the limiting piece of the present invention;

[0031] Fig. 9 It is a three-dimensional schematic diagram of the first conveyor belt and the support frame of the present invention.

[0032] In the figure: 1, support frame; 11, first conveyor belt; 12, second conveyor belt; 13, extension rod; 14, controller; 2, stacking mechanism; 21, lifting unit; 2101, screw rod; 2102, threaded sleeve; 2103, connecting rod; 2104, mounting block; 2105, connecting column; 2106, connecting sleeve; 2107, positioning plate; 2108, guide hole; 2109, guide rod; 2110, motor; 22, sorting unit; 2201, bottom plate; 2202, side plate; 2203, sorting plate; 2204, sliding rod; 2205, block; 2206, roller; 2207, L-shaped clamping rod ; 2208, special-shaped block; 2209, connecting strip; 2210, pressure plate; 2211, rotating rod; 2212, pressure plate; 2213, first spring; 2214, positioning strip; 2215, second spring; 2216, bar hole; 2217, limit block; 3, pushing mechanism; 31, pushing plate; 32, pushing rod; 33, trapezoidal groove; 34, pushing block; 35, multiple telescopic rod; 36, limit plate; 37, third spring; 38, guide groove; 39, moving block; 310, guide column; 311, fourth spring; 312, inclined plate; 313, connecting plate; 314, limit groove; 315, limit strip. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] See also Figure 1-9 The present invention provides a technical solution: a stacking device for packaging boxes. The present invention makes corresponding improvements to the technical problems mentioned in the background technology, including a support frame 1, the inner side of the support frame 1 is rotatably connected to a first conveyor belt 11 through a rotating shaft, a second conveyor belt 12 is arranged at one end of the first conveyor belt 11, two extension rods 13 are fixedly connected to the bottom of the support frame 1, and a controller 14 is fixedly connected to one side of the two extension rods 13. The controller 14 is used to control the overall power supply, and a stacking mechanism 2 is arranged on the surface of the first conveyor belt 11;

[0036] The palletizing mechanism 2 includes a lifting unit 21 . The lifting unit 21 is disposed at the bottom of the first conveyor belt 11 . The lifting unit 21 is used to adjust the height of one end of the first conveyor belt 11 .

[0037] As a further limitation of the stacking mechanism 2 of the present invention, the lifting unit 21 includes a screw rod 2101, which is rotatably connected to the opposite sides of the two extension rods 13, and the surface of the screw rod 2101 is rotatably connected to the inner walls of the two extension rods 13. One side of one of the extension rods 13 is fixedly connected to a motor 2110 through a fixed block, and the output end of the motor 2110 is fixedly connected to one end of the screw rod 2101. The surface of the screw rod 2101 is threadedly connected to a threaded sleeve 2102, and the surface of the threaded sleeve 2102 is rotatably connected to a connecting rod 2103. The bottom of the first conveyor belt 11 is fixedly connected to two mounting blocks 2104, and the opposite sides of the two mounting blocks 2104 are fixedly connected to connecting columns 2105. The surface of the connecting column 2105 is rotatably connected to a connecting sleeve 2106 through a bearing, and the connecting sleeve 2106 is fixedly connected to one end of the connecting rod 2103. Then, one end of the support frame 1 is fixedly connected to two positioning plates 2107, one side of the two positioning plates 2107 is provided with a guide hole 2108, and both sides of the first conveyor belt 11 are fixedly connected to guide rods 2109, and the surface of the guide rods 2109 is slidably connected to the inner cavity of the guide hole 2108; by setting a lifting unit 21, the positive rotation force provided by the motor 2110 drives the screw rod 2101 to rotate, and drives the threaded sleeve 2102 to move forward on the surface of the screw rod 2101, so that one end of the first conveyor belt 11 is displaced upward, which is convenient for increasing the stacking height of the packaging boxes when stacking, and the screw rod 2101 can be reversed by reversing the motor 2110, so as to reversely withdraw the threaded sleeve 2102, so that one end of the first conveyor belt 11 is restored to its original height, which increases the convenience of adjusting the height of the packaging boxes transported by the first conveyor belt 11.

[0038] The specific implementation of this embodiment is as follows: the palletizing device is used for the palletizing of packaging boxes that are not three-dimensionally assembled. The user places the packaging boxes on the first conveyor belt 11. The first conveyor belt 11 is composed of a belt, a frame and a plurality of transmission rollers. The first conveyor belt 11 is in the started state and continuously conveys the packaging boxes to the second conveyor belt 12. The conveying paths of the first conveyor belt 11 and the second conveyor belt 12 are vertical. A counter is provided on the first conveyor belt 11. The counter is a prior art and will not be described here. The passing packaging boxes are counted. When the stacked packaging boxes reach a certain number, the number of packaging boxes is counted. The stacking thickness is level with the conveying height of the first conveyor belt 11. At this time, in order to increase the stacking height of the packaging boxes, the height of the first conveyor belt 11 needs to be raised. The counter is electrically connected to the controller 14, and the controller 14 is a PLC controller. Before stacking, the program has been set. When the conveyed packaging boxes reach a specific number, the data signal is converted into an electrical signal by the counter and transmitted to the controller 14. The motor 2110 is started to rotate forward by the controller 14. The rotation of the motor 2110 drives the screw rod 2101 to rotate, and the rotation of the screw rod 2101 drives the threaded sleeve 2102 to move. The movement of the threaded sleeve 2102 pushes the connecting rod 2103 to move toward one end of the first conveyor belt 11. During the movement of the connecting rod 2103, the connecting sleeve 2106 is used to lift the connecting column 2105. The lifting of the connecting column 2105 lifts the two mounting blocks 2104. The lifting of the two mounting blocks 2104 lifts one end of the first conveyor belt 11. Since the other end of the first conveyor belt 11 is rotatably connected to the inner side of the support frame 1, this end will generate an arc motion trajectory when being lifted. By setting the positioning plate 2107, the guide hole 2108 and the guide rod 2109, the first conveyor belt 11 is lifted. When this end of the conveyor belt 11 is lifted, it is supported to increase the stability of the first conveyor belt 11 when this end is lifted. When one end of the first conveyor belt 11 is lifted to a certain height, the motor 2110 stops rotating. During the process of this end of the first conveyor belt 11 being lifted, the conveyor belt continues to transport the packaging boxes to achieve continuous stacking of the packaging boxes. The number of packaging boxes in each stack is fixed. When the counter counts to the set value, the controller 14 controls the motor 2110 to reverse, driving the screw rod 2101 to reverse, thereby resetting the height of this end of the first conveyor belt 11 and continuing the next round of transportation.

[0039] Embodiment 2

[0040] See also Figure 1-9The present invention provides a technical solution: a stacking device for packaging boxes. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The stacking mechanism 2 also includes a sorting unit 22. The number of the sorting units 22 is several. The sorting unit 22 is arranged on one side of the first conveyor belt 11. The lifting unit 21 is used in conjunction with the sorting unit 22. The sorting unit 22 is used to vertically sort the packaging boxes stacked to a certain height.

[0041] As a further limitation of the stacking mechanism 2 of the present invention, each sorting unit 22 includes a bottom plate 2201, the bottom plate 2201 is fixedly connected to the surface of the second conveyor belt 12, side plates 2202 are fixedly connected to both sides of the bottom plate 2201, and sorting plates 2203 are arranged on opposite sides of the two side plates 2202, one side of the two sorting plates 2203 is fixedly connected to a sliding rod 2204, the sliding rod 2204 is slidably connected to the inner wall of the side plate 2202, one end of the two sliding rods 2204 is fixedly connected to a card block 2205, the inner sides of the two card blocks 2205 are rotatably connected to rollers 2206 through rotating shafts, one side of the two side plates 2202 is fixedly connected to an L-shaped card rod 2207, the surface of the L-shaped card rod 2207 is slidably connected to a special-shaped block 2208, one side of the special-shaped block 2208 is rotatably connected to a connecting strip 2209, and one end of the connecting strip 2209 is fixedly connected to a compressed The plate 2210 and the side plate 2202 are fixedly connected with a rotating rod 2211 on one side, and the surface of the rotating rod 2211 is rotatably connected to the inner wall of the pressure plate 2210. One end of the first conveyor belt 11 is fixedly connected with two pressure plates 2212, and the two pressure plates 2212 are used in conjunction with the two pressure plates 2210 respectively. By setting the sorting unit 22, the pressure plate 2212 is driven to move up and down when one end of the first conveyor belt 11 is lifted and reset, and the pressure plate 2210 is lifted up and pressed down, thereby driving the special-shaped block 2208 to move vertically, and the inclined surface of the special-shaped block 2208 contacts the roller 2206 to squeeze the roller 2206, thereby horizontally squeezing the block 2205, the sliding rod 2204 and the sorting plate 2203, and the packaging boxes stacked between the two are sorted by the relative movement of the two sorting plates 2203 to ensure the verticality of their stacking.

[0042] A first spring 2213 is fixedly connected to one side of the side plate 2202, and the first spring 2213 is sleeved on the surface of the sliding rod 2204. One end of the first spring 2213 is fixedly connected to one side of the card block 2205. A positioning strip 2214 is fixedly connected to one side of the side plate 2202. The top of the positioning strip 2214 is fixedly connected to the second spring 2215. The top of the second spring 2215 is fixedly connected to the bottom of the pressure plate 2210. By setting the first spring 2213, when the card block 2205 is squeezed, the first spring 2213 is compressed. When the card block 2205 loses the squeezing force, the first spring 2213 loses the squeezing force. With the reaction force of the first spring 2213, the card block 2205 is driven to reset, and with the help of its own elasticity, it can drive the sliding rod 2204 to vibrate laterally, thereby increasing the efficiency of the sorting plate 2203 in arranging the stacked packaging boxes. The second spring 2215 is provided with a mounting surface for the installation of the second spring 2215 through the setting of the positioning strip 2214. When the pressure plate 2210 is lifted up by the pressure plate 2212, the second spring 2215 will be stretched. When the pressure plate 2212 continues to move up following the first conveyor belt 11 and breaks contact with the pressure plate 2210, the reaction force of the second spring 2215 will drive the pressure plate 2210 to reset. When the pressure plate 2212 presses down on the pressure plate 2210, the second spring 2215 will be compressed. When the pressure plate 2212 continues to move downward and breaks contact with the pressure plate 2210, the reaction force of the second spring 2215 drives the pressure plate 2210 to reset. With the help of the elasticity of the second spring 2215 itself, the rotation frequency of the pressure plate 2210 is increased, thereby increasing the vertical movement frequency of the special-shaped block 2208, thereby increasing the number of sorting times of the sorting plate 2203.

[0043] A strip hole 2216 is provided on one side of the pressure plate 2210, and the surface of the rotating rod 2211 is rotatably connected to the inner cavity of the strip hole 2216. One end of the rotating rod 2211 is fixedly connected to a limiting block 2217, and one side of the limiting block 2217 contacts with one side of the pressure plate 2210. By setting the strip hole 2216, the rotation space of the rotating rod 2211 on the pressure plate 2210 is expanded to avoid the rotation angle of the pressure plate 2210 being limited, resulting in rotation jamming. The limiting block 2217 can limit the rotation rod 2211 and the pressure plate 2210, thereby increasing the stability of the pressure plate 2210 during rotation.

[0044] The specific implementation of this embodiment is as follows: after being conveyed by the first conveyor belt 11, the packaging boxes are stacked between the top of the bottom plate 2201 and the two side plates 2202. The conveying stroke of the second conveyor belt 12 is segmented. When the counter counts to the set value, the second conveyor belt 12 is started by the controller 14, driving the next sorting unit 22 on its surface to face the port of the first conveyor belt 11. After completing this stroke, the operation of the second conveyor belt 12 is stopped. When the packaging boxes on the top of the bottom plate 2201 are stacked to a certain height, the first conveyor belt 11 is lifted by the lifting unit 21. When one end of the first conveyor belt 11 is lifted, the two pressure plates 2212 are driven to move upward. Initially, the pressure plate 2212 is located at the bottom of the pressure plate 2210. When the pressure plate 2212 moves upward with the first conveyor belt 11, one end of the pressure plate 2210 is pushed upward from bottom to top, so that one end of the pressure plate 2210 is turned upward. When one end of the pressure plate 2210 is turned upward, the second spring 2215 is stretched. The turning of this end of the pressure plate 2210 drives the other end to be pressed downward. The downward pressure of the other end of the pressure plate 2210 drives the special-shaped block 2208 to move downward The special-shaped block 2208 has a special shape, with a flat area in the middle and inclined surfaces symmetrically arranged above and below. When the special-shaped block 2208 moves downward, its inclined surface gradually contacts with the roller 2206, and gradually squeezes the roller 2206, so that the two rollers 2206 produce a lateral displacement towards each other. The relative movement of the two rollers 2206 drives the card block 2205 and the sliding rod 2204 to move towards each other, so that the two sorting plates 2203 move towards each other, and the verticality of the packaging box between the two sorting plates 2203 is sorted. In the process of the lateral movement of the card block 2205, the verticality of the packaging box between the two sorting plates 2203 is sorted. A spring 2213 is compressed, and when the pressure plate 2212 moves to a certain height, it breaks contact with the pressure plate 2210, and the pressure plate 2210 loses its upward pushing force. At this time, the reaction force of the second spring 2215 helps the pressure plate 2210 to reset, and the first spring 2213 helps the block 2205, the sliding rod 2204 and the sorting plate 2203 to reset, and with the help of the rebound vibration of the first spring 2213 and the second spring 2215 after resetting, the number of lateral movements of the sorting plate 2203 is increased, thereby increasing the number of sorting times for the stacked packaging boxes.

[0045] Embodiment 3

[0046] See also Figure 1-9 The present invention provides a technical solution: a palletizing device for packaging boxes. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A pushing mechanism 3 is provided on one side of the first conveyor belt 11. The pushing mechanism 3 is used in conjunction with the palletizing mechanism 2. The pushing mechanism 3 is used to push the palletized packaging boxes to the next production link.

[0047] As a further limitation of the pushing mechanism 3 of the present invention, the pushing mechanism 3 includes a pushing plate 31, which is slidably connected between the two side plates 2202, a push rod 32 is fixedly connected to the surface of the pushing plate 31, and the surface of the push rod 32 is slidably connected to the inner wall of the bottom plate 2201, and a trapezoidal groove 33 is provided on the inner wall of the bottom plate 2201, and a push block 34 is fixedly connected to the bottom of the push rod 32, and the push block 34 is slidably connected to the inner cavity of the trapezoidal groove 33, and one side of the second conveyor belt 12 is fixedly connected to a multiple telescopic rod 35 through a fixed block, and the surface of the innermost rod of the multiple telescopic rod 35 is fixedly connected to two limit plates 36, and one side of the two limit plates 36 is commonly fixedly connected to a third spring 37, and the third spring 37 is sleeved on the surface of the telescopic end of the multiple telescopic rod 35, and the third spring 37 One end of the multi-telescopic rod 35 is fixedly connected to one end of the outermost rod of the multi-telescopic rod 35, the telescopic end of the multi-telescopic rod 35 is used in conjunction with the push block 34, and the inclined surface of the trapezoidal groove 33 is used in conjunction with the multi-telescopic rod 35; by setting the pushing mechanism 3, the multi-telescopic rod 35 and the third spring 37 are used in conjunction with each other to provide a driving force for the stacked packaging boxes, and the multi-telescopic rod 35 and the third spring 37 are compressed by the operation of the second conveyor belt 12 in conjunction with the side plate 2202 and the bottom plate 2201 at the top thereof. When the entrance of the trapezoidal groove 33 moves to the telescopic end of the multi-telescopic rod 35, the multi-telescopic rod 35 cooperates with the reaction force of the third spring 37 to push the push block 34, the push rod 32 and the push plate, thereby pushing the stacked packaging boxes to the next production link.

[0048] A guide groove 38 is provided on the inner wall of the bottom plate 2201, and the guide groove 38 is connected to the trapezoidal groove 33. A moving block 39 is fixedly connected to the bottom of the push block 34, and the moving block 39 is slidably connected to the inner cavity of the guide groove 38. By providing the guide groove 38 in the inner cavity of the trapezoidal groove 33, the moving trajectory of the moving block 39 is guided, thereby realizing the guidance of the moving trajectory of the push block 34, and the embedded sliding of the moving block 39 and the guide groove 38 can avoid random shaking of the moving block 39 when moving, thereby increasing the stability of the push block 34 when moving.

[0049] The inner cavity of the guide groove 38 is fixedly connected with a guide column 310, the inner wall of the moving block 39 is slidably connected to the surface of the guide column 310, and the surface of the guide column 310 is sleeved with a fourth spring 311, one end of the fourth spring 311 is fixedly connected to the inner wall of the guide groove 38, and the other end of the fourth spring 311 is fixedly connected to one side of the moving block 39; by setting the guide column 310, the lateral movement of the moving block 39 can be limited, when the moving block 39 is pushed, the moving block 39 compresses the fourth spring 311, when the moving block 39 loses the driving force, the fourth spring 311 loses the extrusion force, thereby driving the moving block 39 to reset with the help of the reaction force of the fourth spring 311, and the reset of the moving block 39 drives the push block 34, the push rod 32 and the push plate to reset, and the elastic coefficient of the third spring 37 is greater than the elastic coefficient of the fourth spring 311.

[0050] The inclined plate 312 is fixedly connected to one side of the two side plates 2202, and the inclined surface of the inclined plate 312 is used in conjunction with the multiple telescopic rod 35. A connecting plate 313 is fixedly connected to one side of several side plates 2202, and the connecting plate 313 is used to fill the gap between the two sorting units 22; by setting the inclined plate 312, an extrusion point can be set for the multiple telescopic rod 35 in the blank space of the second conveyor belt 12. When the blank space of the second conveyor belt 12 enters the multiple telescopic rod 35, the inclined plate 312 is driven to move, and the telescopic end of the multiple telescopic rod 35 and the third spring 37 are gradually squeezed by the inclined surface of the inclined plate 312, so that the multiple telescopic rod 35 and the third spring 37 are compressed, and sufficient potential energy is stored for the next push. The movement stroke of the second conveyor belt 12 is set in advance by the controller 14. After completing three equal strokes, a different stroke is performed. This different stroke is half of the distance between the bottom plate 2201 on the top surface and the bottom plate 2201 on the bottom surface at both ends of the second conveyor belt 12.

[0051] The tops of the two side plates 2202 are provided with limiting grooves 314, and both ends of the top of the push plate 31 are fixedly connected to limiting strips 315, and the limiting strips 315 are slidably connected to the inner cavity of the limiting grooves 314; by setting the limiting grooves 314 and the limiting strips 315, sliding support for the push plate is achieved, making the push plate 31 more stable and smooth when moving.

[0052] The specific implementation of this embodiment is as follows: after the stacking of a set number of packaging boxes is completed, the second conveyor belt 12 is started by the controller 14, and the second conveyor belt 12 drives the bottom plate 2201 carrying the stacked packaging boxes to move a certain stroke so that it is directly opposite to the transmission end of the conveyor belt of the next production link. In the initial state, the multiple telescopic rod 35 and the third spring 37 are squeezed by one side of the bottom plate 2201 and are in a compressed state. When the second conveyor belt 12 completes the conveying of this stroke, the multiple telescopic rod 35 enters the end of the trapezoidal groove 33. After the multiple telescopic rod 35 and the third spring 37 lose the compression force, the multiple telescopic rod 35 is extended by the reaction force of the third spring 37. The multiple telescopic rod 35 pushes the push block 34 during the extension process, and the movement of the push block 34 The push rod 32 is driven to move in the same direction as the pushing plate 31. The movement of the pushing plate 31 pushes the packaging boxes stacked on the top of the bottom plate 2201 and pushes the packaging boxes to the next conveyor belt. The opening of the next conveyor belt is set by the controller 14 program. Within a certain period of time after the pushing of the packaging boxes is completed, the next conveyor belt is started to convey the stacked packaging boxes to the next link. During the movement, the push block 34 compresses the fourth spring 311. When the second conveyor belt 12 is running, the bottom plate 2201 is driven to move, thereby driving the inclined surface of the trapezoidal groove 33 to compress the multiple telescopic rod 35 and the third spring 37, so that the multiple telescopic rod 35 and the third spring 37 are compressed to the shortest state again, and potential energy is accumulated again for the next push, thereby realizing cyclic pushing.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging box stacking device, comprising a support frame (1), characterized in that: The inner side of the support frame (1) is rotatably connected to a first conveyor belt (11) via a rotating shaft, a second conveyor belt (12) is arranged at one end of the first conveyor belt (11), two extension rods (13) are fixedly connected to the bottom of the support frame (1), one side of the two extension rods (13) is commonly fixedly connected to a controller (14), the controller (14) is used to control the overall power supply, and a stacking mechanism (2) is arranged on the surface of the first conveyor belt (11); The stacking mechanism (2) comprises a lifting unit (21), wherein the lifting unit (21) is arranged at the bottom of the first conveyor belt (11), and the lifting unit (21) is used to adjust the height of one end of the first conveyor belt (11); The stacking mechanism (2) further comprises a collating unit (22), the number of the collating units (22) being several, the collating units (22) being arranged on one side of the first conveyor belt (11), the lifting unit (21) being used in conjunction with the collating unit (22), the collating unit (22) being used to align the verticality of the packaging boxes stacked to a certain height; A pushing mechanism (3) is provided on one side of the first conveyor belt (11), and the pushing mechanism (3) is used in conjunction with the palletizing mechanism (2), and the pushing mechanism (3) is used to push the palletized packaging boxes to the next production link; The lifting unit (21) comprises a screw rod (2101), wherein the screw rod (2101) is rotatably connected to the opposite sides of the two extension rods (13), the surface of the screw rod (2101) is rotatably connected to the inner walls of the two extension rods (13), one side of one of the extension rods (13) is fixedly connected to a motor (2110) via a fixing block, the output end of the motor (2110) is fixedly connected to one end of the screw rod (2101), the surface of the screw rod (2101) is threadedly connected to a threaded sleeve (2102), the surface of the threaded sleeve (2102) is rotatably connected to a connecting rod (2103), and the bottom of the first conveyor belt (11) is fixedly connected to two A mounting block (2104), two connecting columns (2105) are fixedly connected to opposite sides of the two mounting blocks (2104), the surface of the connecting column (2105) is rotatably connected to a connecting sleeve (2106) via a bearing, the connecting sleeve (2106) is fixedly connected to one end of a connecting rod (2103), one end of the support frame (1) is fixedly connected to two positioning plates (2107), one side of the two positioning plates (2107) is provided with a guide hole (2108), both sides of the first conveyor belt (11) are fixedly connected to guide rods (2109), the surface of the guide rods (2109) is slidably connected to the inner cavity of the guide hole (2108); Each of the arranging units (22) comprises a bottom plate (2201), the bottom plate (2201) being fixedly connected to the surface of the second conveyor belt (12), the two sides of the bottom plate (2201) being fixedly connected to side plates (2202), the opposite sides of the two side plates (2202) being provided with arranging plates (2203), one side of the two arranging plates (2203) being fixedly connected to a sliding rod (2204), the sliding rod (2204) being slidably connected to the inner wall of the side plate (2202), one end of the two sliding rods (2204) being fixedly connected to a clamping block (2205), the inner sides of the two clamping blocks (2205) being rotatably connected to rollers (2206) via rotating shafts, and the two side plates (2203) being fixedly connected to the inner wall of the side plates (2202). One side of the plate (2202) is fixedly connected with an L-shaped clamping rod (2207), the surface of the L-shaped clamping rod (2207) is slidably connected with a special-shaped block (2208), one side of the special-shaped block (2208) is rotatably connected with a connecting strip (2209), one end of the connecting strip (2209) is fixedly connected with a pressure plate (2210), one side of the side plate (2202) is fixedly connected with a rotating rod (2211), the surface of the rotating rod (2211) is rotatably connected with the inner wall of the pressure plate (2210), one end of the first conveyor belt (11) is fixedly connected with two pressure plates (2212), and the two pressure plates (2212) are used in conjunction with the two pressure plates (2210) respectively; The pushing mechanism (3) comprises a pushing plate (31), the pushing plate (31) is slidably connected between the two side plates (2202), a pushing rod (32) is fixedly connected to the surface of the pushing plate (31), the surface of the pushing rod (32) is slidably connected to the inner wall of the bottom plate (2201), the inner wall of the bottom plate (2201) is provided with a trapezoidal groove (33), a pushing block (34) is fixedly connected to the bottom of the pushing rod (32), the pushing block (34) is slidably connected to the inner cavity of the trapezoidal groove (33), and one side of the second conveyor belt (12) is fixedly connected to the second conveyor belt (12) through a fixing block. A multiple telescopic rod (35) is connected, and the surface of the innermost rod of the multiple telescopic rod (35) is fixedly connected with two limit plates (36), and one side of the two limit plates (36) is commonly fixedly connected with a third spring (37), and the third spring (37) is sleeved on the surface of the telescopic end of the multiple telescopic rod (35), and one end of the third spring (37) is fixedly connected to one end of the outermost rod of the multiple telescopic rod (35), and the telescopic end of the multiple telescopic rod (35) is used in conjunction with the push block (34), and the inclined surface of the trapezoidal groove (33) is used in conjunction with the multiple telescopic rod (35).

2. A palletizing device for packaging boxes according to claim 1, characterized in that: A first spring (2213) is fixedly connected to one side of the side plate (2202), and the first spring (2213) is sleeved on the surface of the sliding rod (2204). One end of the first spring (2213) is fixedly connected to one side of the block (2205). A positioning bar (2214) is fixedly connected to one side of the side plate (2202), and a second spring (2215) is fixedly connected to the top of the positioning bar (2214), and the top of the second spring (2215) is fixedly connected to the bottom of the pressure plate (2210).

3. A palletizing device for packaging boxes according to claim 1, characterized in that: A strip hole (2216) is provided on one side of the pressure plate (2210), the surface of the rotating rod (2211) is rotatably connected to the inner cavity of the strip hole (2216), one end of the rotating rod (2211) is fixedly connected to a limit block (2217), and one side of the limit block (2217) is in contact with one side of the pressure plate (2210).

4. A palletizing device for packaging boxes according to claim 1, characterized in that: The inner wall of the bottom plate (2201) is provided with a guide groove (38), the guide groove (38) is connected to the trapezoidal groove (33), the bottom of the push block (34) is fixedly connected with a moving block (39), and the moving block (39) is slidably connected to the inner cavity of the guide groove (38).

5. A palletizing device for packaging boxes according to claim 4, characterized in that: The inner cavity of the guide groove (38) is fixedly connected to a guide column (310), the inner wall of the moving block (39) is slidably connected to the surface of the guide column (310), the surface of the guide column (310) is sleeved with a fourth spring (311), one end of the fourth spring (311) is fixedly connected to the inner wall of the guide groove (38), and the other end of the fourth spring (311) is fixedly connected to one side of the moving block (39).

6. A palletizing device for packaging boxes according to claim 1, characterized in that: One side of two of the side panels (2202) is fixedly connected to an inclined plate (312), and the inclined surface of the inclined plate (312) is used in conjunction with the multiple telescopic rods (35). One side of a plurality of the side panels (2202) is fixedly connected to a connecting plate (313), and the connecting plate (313) is used to fill the gap between the two sorting units (22).

7. A palletizing device for packaging boxes according to claim 1, characterized in that: The tops of the two side plates (2202) are provided with limiting grooves (314), and both ends of the top of the pushing plate (31) are fixedly connected to limiting strips (315), and the limiting strips (315) are slidably connected to the inner cavity of the limiting grooves (314).

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