Carton receiving and stacking apparatus

Abstract

This invention discloses a cardboard box receiving and stacking device, relating to the field of cardboard box processing and transportation technology. It includes two symmetrically distributed uprights, each with a liftable backplate on one side. The bottom ends of the backplates extend downwards to form multiple equidistant, vertically arranged first intercepting sections. The bottom ends of the first intercepting sections extend horizontally to form first support strips. It also includes a bottom plate on one side of the uprights, with its surface protruding upwards to form multiple equidistant, horizontally arranged second support strips. The ends of the second support strips near the backplate extend vertically to form multiple second intercepting sections. This invention, through a movement pattern of alternating or separating the first intercepting sections and first support strips with the second intercepting sections and second support strips, can quickly lift and transfer a certain number of stacked cardboard boxes without affecting subsequent unloading and stacking operations. The entire process requires no machine downtime, significantly improving the efficiency of cardboard box receiving and stacking operations.

Description

Technical Field

[0001] This invention relates to the field of cardboard box processing and transportation technology, and in particular to a cardboard box receiving and stacking equipment. Background Technology

[0002] In the production of cardboard boxes, the process must follow the sequence of first making the cardboard and then forming and gluing it together. Since the base of corrugated cardboard boxes is corrugated cardboard, the production line first processes the raw paper into flat, uniform single sheets of cardboard through corrugation lamination, slitting, and cross-cutting processes. Compared to directly forming cardboard boxes, processing the raw paper into flat sheets first allows for continuous high-speed processing of the raw paper, significantly improving the utilization rate of raw materials, avoiding deformation and damage problems during the forming of the box body, and ensuring that the cardboard thickness and flatness are uniform.

[0003] After the neatly arranged individual cardboard sheets are processed, they are assembled into hollow boxes through folding, baffle, and gluing processes. This effectively ensures the accurate dimensions and square structure of the boxes, meeting the strength requirements for subsequent packaging, stacking, and transportation. Cardboard receiving and stacking is a crucial process connecting cardboard processing and box forming. Continuously produced cardboard needs to be neatly arranged, accurately counted, and stacked in batches through receiving and stacking to avoid cardboard scattering, misalignment, breakage, and warping during high-speed production. Standardized stacked cardboard facilitates warehousing and orderly transfer, providing neat raw materials for subsequent automated box folding and gluing processes.

[0004] Existing cardboard receiving and stacking equipment for folding cardboard drop points mostly uses a fixed frame to receive and organize the dropped cardboard. After stacking, the stacked cardboard needs to be removed as a whole, which prolongs the waiting time for receiving the next batch of cardboard. It cannot simultaneously receive and stack the cardboard in layers, resulting in low operational efficiency. Furthermore, during the removal process, it is difficult to ensure the neatness of the stacked cardboard, as it is easily disturbed or misaligned, leading to cardboard misalignment and skewing. Therefore, this application provides a cardboard box receiving and stacking equipment to meet this requirement. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a cardboard box receiving and stacking device.

[0006] To achieve the above objectives, this application provides the following technical solution: a cardboard box receiving and stacking device, comprising two symmetrically distributed uprights, each upright having a liftable back plate on one side, the bottom of each back plate extending downward to form a plurality of equidistantly arranged first intercepting parts, the bottom of each first intercepting part extending horizontally to form a first support strip.

[0007] It also includes a base plate located on one side of the stand, with each surface of the base plate protruding upwards to form multiple horizontally distributed second support strips. The second support strips extend vertically near the back plate to form multiple second intercepting sections. When the first support strip, along with the first intercepting section and the back plate, descends and connects with the second support strip, the first and second intercepting sections connect to form a space that can accommodate the falling folded cardboard. When the first support strip carrying the folded cardboard rises along with the first intercepting section and the back plate and separates from the second support strip, the first and second intercepting sections separate simultaneously, and the second support strip and second intercepting sections can still accommodate the falling folded cardboard.

[0008] Furthermore, each of the back plates is fixed with a protective cover on the side near the upright, and each of the protective covers is fixed with a symmetrically distributed first connecting frame. Each of the first connecting frames is fixed with a linear lifting slide, and the linear lifting slide is slidably mounted on the upright.

[0009] The two linear lifting slides located on the same upright are connected by a second armature. The inner side of the upright is equipped with a first cylinder for driving the second armature, the two linear lifting slides and the two first armatures to move up and down synchronously.

[0010] Furthermore, the bottom ends of both of the uprights are fixed to the same turntable, and a base is provided below the turntable for rotating assembly with it. The bottom end of the turntable extends to the inner side of the base, and a linkage gear ring is assembled at the bottom end of the turntable.

[0011] The base has a drive gear that meshes with the linkage gear ring on its inner side, and a motor drive assembly for driving the drive gear to rotate is mounted on the outer side of the base.

[0012] Furthermore, side baffles are provided on both sides of the base plate, and sliding seats are fixed at the bottom of the two side baffles. The bottom of the base plate is fixed to the turntable through a support base. A second cylinder is installed on the front and rear sides of the support base. The output ends of the two second cylinders face opposite directions, and the output ends of the second cylinders are respectively connected to the two sliding seats.

[0013] Each of the support base platforms is provided with two sets of second guide rails, and two sliding seats located on both sides of the same base plate are slidably assembled on the two sets of second guide rails.

[0014] Furthermore, both sides of the back plate are provided with linkage plates, and multiple side inserts are fixed at the bottom of the linkage plates. Multiple limiting grooves are provided on the side baffles. When the first support bar is spliced ​​with the second support bar as the first intercepting part and the back plate descend, the linkage plate descends synchronously until the side inserts are all inserted into the limiting grooves.

[0015] Furthermore, each of the side inserts closest to the back plate is fixed with a reinforcing plate that is parallel to the linkage plate. The linkage plate and the reinforcing plate on the same side are connected to a linkage block by an elastic connection structure. Each of the two linkage blocks is fixed with a linkage rack that moves synchronously with it. The two linkage racks are distributed diagonally from top to bottom, and the rack parts of the two linkage racks are distributed opposite each other.

[0016] Two first guide rails arranged from top to bottom are fixed on the side of the back plate near the upright. Two linkage racks are slidably assembled with the first guide rails. The two first guide rails and linkage racks extend inside the cover. Linkage gears are meshed in the relative space of the two linkage racks. The linkage gears are assembled inside the cover. A motor drive assembly for driving the linkage gears to rotate is assembled outside the cover.

[0017] Furthermore, each of the elastic connection structures includes two limiting rods fixed to the linkage block. The linkage plate and the reinforcing plate are both sleeved on the limiting rods, and the relative space between the linkage plate, the reinforcing plate and the linkage block is provided with a pressure spring surrounding the outside of the limiting rod. Both ends of the pressure spring are fixed to the linkage block, the linkage plate or the reinforcing plate through positioning pads. The end of the limiting rod away from the linkage block is equipped with an intercepting ring. When the side rods are inserted into the inner side of the limiting groove, when the side baffle moves toward the bottom plate, the side rods move synchronously, and the linkage plate and the reinforcing plate move along the path of the limiting rod until the positioning pads squeeze the pressure springs to contract.

[0018] In summary, the technical effects and advantages of this invention are as follows:

[0019] 1. This invention utilizes a movement pattern where the first intercepting part and the first support bar interlock or separate from the second intercepting part and the second support bar, respectively. This allows for the rapid upward transfer of a certain number of stacked cartons without affecting subsequent unloading and stacking operations. The entire process requires no machine downtime, significantly improving the efficiency of carton receiving and stacking. It avoids the problem of reduced overall efficiency caused by the need to stop and transfer stacked cartons in traditional stacking operations. During the successive reception of the first and second sets of stacked folded cardboard, a smooth connection between the stacking and transfer stations is achieved, ensuring the flatness of the folded cardboard's storage space, preventing tilting or shifting of the cardboard, and ensuring neat stacking of the cardboard after stacking.

[0020] 2. This invention, through the arrangement of two side baffles, two linkage plates, and two sets of side insert rods, allows for flexible docking and separation operations based on the working conditions of the first and second sets of folded cartons during stacking and transfer. When the side baffles and side insert rods are docked, they maintain consistency during synchronous movement, performing a limiting and alignment operation on the first set of cartons. When the side baffles and side insert rods are separated, they can be used independently to perform limiting and alignment operations on the upper and lower sets of cartons. This ensures that the two sets of cartons maintain a neat stacked state throughout the entire stacking and transfer process, preventing tilting or misalignment. Furthermore, the entire connection process is efficient and convenient, requiring no manual intervention, thus improving the overall smoothness of the operation and adapting to the needs of continuous production. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a first-view schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a second-view schematic diagram of the overall structure of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the base of the present invention after being cut open.

[0025] Figure 4 This is a schematic diagram of the structure of the present invention in which both sets of first support strips separate from the second support strip as the first intercepting part and the back plate rise.

[0026] Figure 5 This is a schematic diagram of the connection structure of the side baffle, sliding seat, supporting base and the second cylinder of the present invention.

[0027] Figure 6 This is a schematic diagram of the structure of the first support strip, the first intercepting part, and the back plate of the present invention after being cut open.

[0028] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0029] Figure 8 This is a schematic diagram of the connection structure between the back plate, the linkage plate, the side insert rod, and the reinforcing plate of the present invention.

[0030] Figure 9 This is a schematic diagram of the connection structure between the base plate and the side baffle, linkage plate, side insert rod and reinforcing plate of the present invention.

[0031] Figure 10 This is a schematic diagram of the connection structure of the linkage plate, reinforcing plate, linkage block and linkage rack frame of the present invention.

[0032] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point B.

[0033] In the diagram: 1. Upright frame; 11. First connecting frame; 12. Lifting slide; 13. Second connecting frame; 14. First cylinder; 2. Back plate; 21. First intercepting part; 22. First support bar; 23. First guide rail; 24. Protective cover; 3. Base plate; 31. Second support bar; 32. Second intercepting part; 33. Support base; 34. Second guide rail; 4. Side baffle; 41. Limiting groove; 42. Sliding seat; 43. Second cylinder; 5. Linkage plate; 51. Side insert rod; 6. Reinforcing plate; 7. Turntable; 71. Linkage gear ring; 8. Base; 81. Drive gear; 82. Motor drive assembly one; 9. Linkage block; 91. Limiting rod; 92. Linkage rack frame; 93. Linkage gear; 94. Motor drive assembly two; 911. Pressure spring; 912. Positioning pad; 913. Intercepting ring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Reference Figure 1 - Figure 4 The cardboard box receiving and stacking equipment shown includes two symmetrically distributed uprights 1. Each upright 1 has a back plate 2 that can be lifted and moved on one side. The bottom end of each back plate 2 extends downward to form a plurality of equidistantly arranged first intercepting parts 21. The bottom end of each first intercepting part 21 extends horizontally to form a first support strip 22.

[0036] It also includes a base plate 3 located on one side of the support frame 1. The surface of the base plate 3 protrudes upward to form a plurality of horizontally distributed second support strips 31 at equal intervals. The second support strips 31 extend vertically along one end near the back plate 2 to form a plurality of second intercepting parts 32.

[0037] In the actual use of this invention, one of the two uprights 1 is directly opposite the dropping position of the cardboard box. First, when the first support strip 22 is lowered along with the first intercepting part 21 and the back plate 2 and splices with the second support strip 31, the first intercepting part 21 and the second intercepting part 32 are spliced ​​together to form a space that can accommodate the falling folded cardboard. See [link to relevant documentation]. Figure 1 - Figure 2 As shown, the folded cardboard is continuously fed into the space, where it is gradually stacked.

[0038] After a certain number of stacks are completed, the first support strip 22 carrying the folded cardboard separates from the second support strip 31 as the first interceptor 21 and back plate 2 rise. The first interceptor 21 and the second interceptor 32 separate simultaneously. The first set of cartons can detach from the second support strip 31 and the second interceptor 32 as the first support strip 22, the first interceptor 21, and the back plate 2 rise. At this time, the second support strip 31 and the second interceptor 32 can still accommodate the falling folded cardboard. See [link to relevant documentation]. Figure 4 As shown.

[0039] Throughout the process, the first set of cartons, once stacked to a certain quantity, can be quickly raised and transferred. At the same time, it does not affect the subsequent unloading and stacking of the second set of cartons. The entire process does not require machine downtime, which greatly improves the efficiency of carton receiving and stacking operations. It avoids the problem of reduced overall operational efficiency caused by the need to stop the machine to transfer stacked cartons in traditional stacking operations.

[0040] Through the movement pattern of the first intercepting part 21 and the first support bar 22 interleaving or separating with the second intercepting part 32 and the second support bar 31 respectively, the stacking station and the transfer station are smoothly connected in the process of successively receiving the first and second stacked folded cardboard. At the same time, the flatness of the folded cardboard accommodating space is ensured, the cardboard is prevented from tilting or shifting, and the stacked cardboard is kept neat.

[0041] like Figure 8 As shown, a protective cover 24 is fixed on the side of the back plate 2 near the upright 1. A first connecting frame 11 is fixed on the outside of the protective cover 24. A linear lifting slide 12 is fixed on the first connecting frame 11. The linear lifting slide 12 is slidably assembled on the upright 1.

[0042] The two linear lifting slides 12 located on the same upright frame 1 are connected by the second armature 13. The inner side of the upright frame 1 is equipped with a first cylinder 14 for driving the second armature 13, the two linear lifting slides 12 and the two first armatures 11 to move up and down synchronously.

[0043] Once a certain number of cartons have been stacked, the action of the first cylinder 14 can stably drive the back plate 2 to complete the lifting action along the upright frame 1, raising and transferring the cartons stacked to a certain height, ensuring the stable execution of the splicing and separation actions of the first support strip 22, the first intercepting part 21, the second support strip 31, and the second intercepting part 32.

[0044] like Figure 3As shown, the bottom ends of the two uprights 1 are fixed on the same turntable 7. The turntable 7 is provided with a base 8 that is rotatably assembled with it. The bottom end of the turntable 7 extends to the inside of the base 8, and a linkage gear ring 71 is assembled at the bottom end of the turntable 7.

[0045] The inner side of the base 8 is equipped with a drive gear 81 that meshes with the linkage gear ring 71, and the outer side of the base 8 is equipped with a motor drive assembly 82 for driving the drive gear 81 to rotate.

[0046] When the first support bar 22, the first intercepting part 21, the cardboard boxes and the back plate 2 mounted on the first support bar 22 and the first intercepting part 21 are raised on one side of the upright frame 1, the cardboard boxes in the second support bar 31, the second intercepting part 32, the second support bar 31 and the second intercepting part 32 located below are also stacked to a certain height. The motor drive component 82 on the base 8 can drive the drive gear 81 to rotate, which can then mesh with the linkage gear ring 71 to drive the turntable 7 to rotate as a whole. This will move the two sets of cardboard boxes that have been stacked away from the cardboard box dropping position, and at the same time rotate the upright frame 1 on the other side to the cardboard box dropping position. The staff can directly unload and transfer the two sets of cardboard boxes that have been stacked, further improving the smoothness of the overall operation.

[0047] During the unloading and transfer process, the other side of the upright 1 can repeat the above steps. The first intercepting part 21 and the first support bar 22 first engage with the second intercepting part 32 and the second support bar 31 respectively until the first set of folded cardboard is stacked. Then, the first intercepting part 21 and the first support bar 22 separate from the second intercepting part 32 and the second support bar 31, and the cardboard boxes carrying the first set of stacked boxes are moved upwards. The second intercepting part 32 and the second support bar 31 receive the subsequent second set of folded cardboard boxes and stack them successively. Through this operating mode, large-scale continuous cardboard box stacking operations can be carried out without stopping the machine to wait for the entire batch of cardboard boxes to be unloaded, further improving the operating efficiency and adapting to the operating requirements of continuous cardboard box processing production lines.

[0048] Example 2: During the successive joining of the first and second groups of folded cardboard, the cardboard is prone to shifting under the force of gravity. To ensure the neatness of the cardboard stack, as follows: Figure 4 , Figure 5 As shown, side baffles 4 are provided on both sides of the base plate 3. Sliding seats 42 are fixed at the bottom of both side baffles 4. The bottom of the base plate 3 is fixed to the turntable 7 through the support base 33. Second cylinders 43 are installed on the front and rear sides of the support base 33. The output ends of the two second cylinders 43 face opposite directions, and the output ends of the second cylinders 43 are respectively connected to the two sliding seats 42.

[0049] Two sets of second guide rails 34 are provided on each support base 33. Two sliding seats 42 located on both sides of the same base plate 3 are slidably mounted on the two sets of second guide rails 34. The setting of the second guide rails 34 can maintain the stability and accuracy of the two sliding seats 42 and the two side baffles 4 during the movement.

[0050] Specifically, whether it is the first or second group of folded cardboard stacking and dropping process, the two second cylinders 43 can move synchronously, driving the two sliding seats 42 to move along the second guide rail 34 toward the center of the base plate 3. The two side baffles 4 continuously limit the sides of the cardboard boxes during the falling and stacking process, preventing the cardboard boxes from tilting or misaligning when stacked, and ensuring the neatness of the stacking.

[0051] By limiting the two sides of the cardboard boxes during the stacking process, the transfer operation can be easily carried out by the staff when the two sets of cardboard boxes are rotated away from the dropping position of the cardboard boxes as the upright 1 rotates, and when the two sets of folded cardboard boxes are transferred. This improves the portability of the transfer operation.

[0052] Furthermore, as the first set of folded cardboard is stacked and moved upwards, this set of cartons will gradually rise and detach from the side baffle 4. To maintain the stability and neatness of this set of cartons when placed at a high position and during the process of the subsequent two sets of cartons moving away from the cardboard unloading station as the upright 1 rotates, such as... Figure 6 - Figure 8 As shown, based on Example 2, Example 3 of the present invention is as follows:

[0053] In this invention, both sides of the back panel 2 are provided with linkage plates 5, and the bottom of each linkage plate 5 is fixed with multiple side inserts 51 arranged vertically at equal intervals. Multiple limiting grooves 41 are provided on each side baffle 4. During the stacking of the first set of folded cardboard, as the first support strip 22 descends with the first intercepting part 21 and the back panel 2, it is in a spliced ​​state with the second support strip 31. The linkage plates 5 descend synchronously until all the side inserts 51 are inserted into the limiting grooves 41. The side inserts 51, linkage plates 5, and two side baffles 4 move synchronously, continuously limiting the sides of the cardboard boxes during the stacking process, maintaining the stability and neatness of the first set of cardboard boxes in a stacked state.

[0054] As the first set of folded cardboard boxes is stacked and moved upwards, it gradually rises and detaches from the side baffle 4. The linkage plate 5 rises synchronously until the side insertion rod 51 disengages from the inner side of the limiting groove 41. The two linkage plates 5 and the two sets of side insertion rods 51 then replace the side baffle 4, moving closer to the cardboard boxes to limit their movement and maintain stability and neatness during the high-positioning process. Simultaneously, the two side baffles 4 continue to limit the movement of the cardboard boxes on both sides during the downward stacking process until the second set of cardboard boxes is stacked.

[0055] As the upright frame 1 rotates away from the cardboard unloading station, the two linkage plates 5 and the two sets of side insert rods 51 can clamp and limit the first set of cardboard boxes located above, and the two side baffles 4 can limit the second set of cardboard boxes located below, so that the two sets of cardboard boxes can always maintain a stable and orderly state as the upright frame 1 rotates away from the cardboard unloading station.

[0056] Specifically, such as Figure 6 , Figure 7 As shown, each of the side inserts 51 closest to the back plate 2 is fixed with a reinforcing plate 6 that is parallel to the linkage plate 5. The linkage plate 5 and the reinforcing plate 6 on the same side are connected to the linkage block 9 by an elastic connection structure. Each of the two linkage blocks 9 is fixed with a linkage rack 92 that moves synchronously with it. The two linkage racks 92 are diagonally distributed from top to bottom, and the rack parts of the two linkage racks 92 are distributed opposite each other.

[0057] like Figure 9 , Figure 10 As shown, two first guide rails 23 arranged from top to bottom are fixed on the side of the back plate 2 near the upright 1. Two linkage rack frames 92 are slidably assembled with the first guide rails 23 respectively. The two first guide rails 23 and the linkage rack frames 92 extend into the inner side of the cover 24. The two linkage rack frames 92 are meshed with linkage gears 93 in the relative space of each other. The linkage gears 93 are assembled inside the cover 24. The outer side of the cover 24 is equipped with a motor drive assembly 94 for driving the linkage gears 93 to rotate.

[0058] As the first set of folded cardboard boxes is stacked and moved upwards, it gradually rises and detaches from the side baffle 4. Simultaneously, the linkage plate 5 rises, causing the side insert rods 51 to disengage from the inner side of the limiting groove 41. At this point, the motor drive assembly 94 operates, driving the linkage gear 93 to rotate. The two linkage rack frames 92 move steadily and precisely towards each other along the path of the first guide rail 23 until the two linkage plates 5 and the two sets of side insert rods 51 move close to the cardboard boxes and tighten, thus limiting the first set of cardboard boxes located above, ensuring that the cardboard boxes remain stable and orderly during their placement at a high position. Simultaneously, the two side baffles 4 continue to limit the sides of the cardboard boxes during the falling stacking process until the second set of cardboard boxes is stacked.

[0059] As both sets of cartons are transferred away from the unloading station along with the upright 1, and during the unloading and transfer operation of the two sets of folded cartons, the motor drive assembly 94 drives the linkage gear 93 to rotate in the opposite direction. The two linkage rack frames 92 move in the opposite direction along the first guide rail 23, causing the two linkage plates 5 and the two sets of side insert rods 51 to move in the opposite direction to release the cartons. At the same time, the two second cylinders 43 can also synchronously drive the two sliding seats 42 to move away from the cartons, causing the two side baffles 4 to move in the opposite direction to deliver the cartons. Subsequently, the two sets of stacked cartons can be smoothly removed, completing the unloading operation. After the back plate 2 is reset and connected, the linkage plate 5, the side insert rods 51 and the side baffles are also reset, waiting for the next stacking operation. The entire limit connection process is smooth and stable, requiring no additional manual adjustment, further ensuring the neatness of the cartons during the stacking and transfer process.

[0060] In summary, this invention, through the arrangement of two side baffles 4, two linkage plates 5, and two sets of side insert rods 51, can implement flexible docking and separation operations based on the working conditions of the first and second sets of folded cartons during stacking and transfer operations. When the side baffles 4 and side insert rods 51 are docked, they can maintain consistency during synchronous movement. When the side baffles 4 and side insert rods 51 are separated, they can be used independently, ensuring that the upper and lower sets of cartons maintain a neat stacking state throughout the entire stacking and transfer process, without any tilting or misalignment. Furthermore, the entire connection process is efficient and convenient, requiring no manual intervention for adjustment, thus improving stacking neatness and overall operational smoothness, fully adapting to the needs of continuous production operations.

[0061] It is worth mentioning that in this invention, when the side baffle 4 aligns with the side insert rod 51, since the side baffle 4 needs to continuously clamp the folded cardboard during the stacking process, the displacement of the two linkage plates 5 and the two sets of side insert rods 51 relies entirely on the driving force of the side baffle 4. This is to avoid frequent start-stop adjustments of the motor drive assembly 94 in a short period, reducing power consumption and mechanical wear of the drive structure, and lowering the overall operating and maintenance costs of the equipment. The motor drive assembly 94 is only activated to complete the tightening action when the side insert rod 51 needs to individually limit the first set of cartons above, improving the rationality of the overall power distribution and further enhancing the overall stability of the equipment operation.

[0062] When the side baffle 4 aligns with the side insert rod 51, in order to ensure that the movement of the side baffle 4 can smoothly drive the side insert rod 51 and the linkage plate 5 to move, and that the resetting of the side baffle 4 can smoothly drive the side insert rod 51 and the linkage plate 5 to move and reset, Embodiment 4 of the present invention is as follows:

[0063] like Figure 10 ,like Figure 11As shown, the elastic connection structure in this invention includes two limiting rods 91 fixed to the linkage block 9. The linkage plate 5 and the reinforcing plate 6 are both sleeved on the limiting rods 91. A pressure spring 911 is provided around the outside of the limiting rod 91 in the relative space between the linkage plate 5, the reinforcing plate 6, and the linkage block 9. Both ends of the pressure spring 911 are fixed to the linkage block 9, the linkage plate 5, or the reinforcing plate 6 via positioning pads 912. An intercepting ring 913 is fitted to the end of the limiting rod 91 away from the linkage block 9. When the side insert rods 51 are inserted into the inner side of the limiting groove 41, and when the side baffle 4 moves towards the bottom plate 3, the side insert rods 51 move synchronously. The linkage plate 5 and the reinforcing plate 6 move along the path of the limiting rod 91 until the positioning pad 912 compresses the pressure spring 911 and contracts. Conversely,

[0064] When the side baffle 4 moves in the opposite direction away from the base plate 3 and resets, the pressure spring 911 elastically resets, pushing the linkage plate 5, the reinforcing plate 6 and the side insert rod 51 to move in the opposite direction and reset synchronously. The whole process can follow the side baffle 4 to move synchronously without additional power.

[0065] By setting up an elastic connection structure, while ensuring that the side insert rod 51 moves synchronously with the side baffle 4, the elastic buffer of the pressure spring 911 can prevent hard jamming between the side insert rod 51 and the limiting groove 41 due to assembly errors, ensuring smooth connection action, ensuring the stability of the transmission process, reducing wear between structures, and extending the service life of the structure.

[0066] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A carton infeed stacker apparatus, characterized by: It includes two symmetrically distributed uprights (1), each upright (1) having a back plate (2) that can be raised and lowered on one side, and the bottom of each back plate (2) extending downward to form multiple equidistant vertically arranged first intercepting parts (21), the bottom of each first intercepting part (21) extending horizontally to form a first support strip (22). It also includes a base plate (3) located on one side of the stand (1). The surface of the base plate (3) protrudes upward to form multiple horizontally distributed second support strips (31). The second support strips (31) extend vertically along the end near the back plate (2) to form multiple second intercepting parts (32). When the first support strip (22) is spliced ​​with the second support strip (31) as the first intercepting part (21) and the back plate (2) descend, the first intercepting part (21) and the second intercepting part (32) are spliced ​​together to form a space that can accommodate the falling folded cardboard. When the first support strip (22) carrying the folded cardboard is separated from the second support strip (31) as the first intercepting part (21) and the back plate (2) rise, the first intercepting part (21) and the second intercepting part (32) are separated synchronously. The second support strip (31) and the second intercepting part (32) can still accommodate the falling folded cardboard.

2. The carton storage pile-up apparatus according to claim 1, characterized by: Each of the back plates (2) is fixed with a protective cover (24) on the side near the upright (1). Each of the protective covers (24) is fixed with a symmetrically distributed first arm (11). Each of the first arm (11) is fixed with a linear lifting slide (12). Each of the linear lifting slides (12) is slidably mounted on the upright (1). The two linear lifting slides (12) located on the same upright (1) are connected by a second armature (13). The inner side of the upright (1) is equipped with a first cylinder (14) for driving the second armature (13), the two linear lifting slides (12) and the two first armatures (11) to move up and down synchronously.

3. The carton storage pile-up apparatus according to claim 1, characterized by: The bottom ends of the two uprights (1) are fixed on the same turntable (7). The turntable (7) is provided with a base (8) for rotating assembly below it. The bottom end of the turntable (7) extends to the inside of the base (8), and the bottom end of the turntable (7) is equipped with a linkage gear ring (71). The base (8) is equipped with a drive gear (81) that meshes with the linkage gear ring (71) on the inner side, and a motor drive assembly (82) for driving the drive gear (81) to rotate is equipped on the outer side of the base (8).

4. The carton storage pile-up apparatus according to claim 1, characterized by: The base plate (3) is provided with side baffles (4) on both sides. The bottom ends of the two side baffles (4) are fixed with sliding seats (42). The bottom ends of the base plate (3) are fixed to the turntable (7) through the support base (33). The front and rear sides of the support base (33) are equipped with second cylinders (43). The output ends of the two second cylinders (43) face opposite directions, and the output ends of the second cylinders (43) are respectively connected to the two sliding seats (42). Each of the support bases (33) is provided with two sets of second guide rails (34), and two sliding seats (42) located on both sides of the same base plate (3) are slidably assembled on the two sets of second guide rails (34).

5. The carton storage pile stacking apparatus according to claim 4, characterized in that: Both sides of the back plate (2) are provided with linkage plates (5), and the bottom of the linkage plates (5) are fixed with multiple side inserts (51) arranged vertically at equal intervals. Multiple limiting grooves (41) are provided on the side baffles (4). When the first support bar (22) is lowered along with the first intercepting part (21) and the back plate (2) and spliced ​​with the second support bar (31), the linkage plate (5) is lowered synchronously until the side inserts (51) are inserted into the inner side of the limiting grooves (41).

6. The carton storage pile-up apparatus according to claim 5, characterized in that: The side inserts (51) closest to the back plate (2) are all fixed with reinforcing plates (6) that are parallel to the linkage plate (5). The linkage plate (5) and the reinforcing plate (6) on the same side are connected to linkage blocks (9) through an elastic connection structure. The two linkage blocks (9) are all fixed with linkage racks (92) that move synchronously with them. The two linkage racks (92) are diagonally distributed from top to bottom, and the rack parts of the two linkage racks (92) are distributed opposite each other. Two first guide rails (23) arranged from top to bottom are fixed on the side of the back plate (2) near the upright (1). Two linkage racks (92) are slidably assembled with the first guide rails (23). The two first guide rails (23) and the linkage racks (92) extend inside the cover (24). The two linkage racks (92) are meshed with linkage gears (93) in the relative space of the two linkage racks (92). The linkage gears (93) are assembled inside the cover (24). The cover (24) is equipped with a motor drive assembly (94) for driving the linkage gears (93) to rotate.

7. The carton storage pile stacking apparatus according to claim 6, characterized in that: Each of the elastic connection structures includes two limiting rods (91) fixed on the linkage block (9). The linkage plate (5) and the reinforcing plate (6) are both sleeved on the limiting rods (91). The relative space between the linkage plate (5), the reinforcing plate (6) and the linkage block (9) is provided with a pressure spring (911) surrounding the outside of the limiting rod (91). Both ends of the pressure spring (911) are fixed to the linkage block (9), the linkage plate (5) or the reinforcing plate (6) through positioning pads (912). The end of the limiting rod (91) away from the linkage block (9) is equipped with an intercepting ring (913). When the side insert rods (51) are inserted into the inner side of the limiting groove (41), when the side baffle (4) moves toward the bottom plate (3), the side insert rods (51) move synchronously. The linkage plate (5) and the reinforcing plate (6) move along the path of the limiting rod (91) until the positioning pad (912) squeezes the pressure spring (911) to contract.

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