A box forming device for a paper box board for a tea bag packing

Abstract

The utility model relates to a kind of paper box board's boxing device for bagged tea leaf packing, including rack, conveying belt being set on rack, a group of paper box setting groove is set on conveying belt, and setting platform is set in the both sides of conveying belt of rack;Setting platform is sequentially provided with four feet inner folding structure and upper cover folding structure from left to right, and the four feet inner folding structure is used to realize the inner folding of paper box board four feet;The upper cover folding structure is used to realize the folding of paper box board inner side board, upper cover board, inner cover board.The utility model can effectively solve the problems of low boxing efficiency, high labor cost and high labor intensity in the prior art by manual realization of paper box board boxing.

Description

Technical Field

[0001] This utility model relates to the field of tea packaging, and in particular to a box-forming device for a paperboard for packaging bagged tea. Background Technology

[0002] Packaging boxes are needed for tea packaging. For example, bagged tea is packaged in a box.

[0003] For boxed tea, a six-sided cardboard box is generally used, which needs to be folded into shape. When boxing bagged tea, the cut cardboard board is first folded into an unsealed box shape, then the bagged tea is put into the cardboard box, glue is applied to the sealing side of the cardboard box, and finally the glued side of the cardboard box is sealed, thus completing the boxing of bagged tea.

[0004] The process involves first packaging the tea into boxes, then manually packing small bags of tea into them. During the packing process, the small bags of tea can easily burst or deform the cardboard box.

[0005] Meanwhile, during the box-making process, the cardboard box needs to be folded inward at all four corners, then the two side panels, the top cover, and finally the inner cover in sequence to achieve the basic box-making process.

[0006] Manually assembling cardboard boxes presents problems such as high labor costs, high labor intensity, and low box-making efficiency. Summary of the Invention

[0007] The purpose of this utility model is to provide a box-forming device for paperboards used in packaging bagged tea, which can effectively solve the problems of low box-forming efficiency, high labor costs, and high labor intensity that exist in the prior art when paperboards are manually formed.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a box-forming device for paperboard for packaging bagged tea, including a frame, a conveyor belt set on the frame, a set of paperboard placement slots on the conveyor belt, and placement platforms on both sides of the frame located on the conveyor belt; the placement platforms are provided with a four-legged inward folding structure and a top cover folding structure from left to right, wherein the four-legged inward folding structure is used to realize the inward folding of the four legs of the paperboard; and the top cover folding structure is used to realize the folding of the inner side panel, the top cover, and the inner cover of the paperboard. The four-corner inward folding structure includes an auxiliary support mounted on a placement platform. A rotatable shaft is mounted on the auxiliary support, positioned above the conveyor belt. The shaft has a front actuating block and a rear actuating block that rotate with it. The front actuating block is located on the front side of the cardboard box placement slot and matches the front left foot of the cardboard box. The rear actuating block is located on the rear side of the cardboard box placement slot and matches the rear left foot of the cardboard box. A drive device for rotating the shaft is mounted on the placement platform. A bending plate is also mounted on both sides of the workbench, front and rear of the conveyor belt, to the right of the front and rear actuating blocks. A clearance is provided between the bottom of the bending plate and the placement platform to accommodate the cardboard box. The bending plate includes a straight section and a curved section. The straight section is positioned close to the outer wall of the cardboard box placement slot, and the curved section is located at the end of the straight section facing the auxiliary support and is turned outwards in the direction away from the conveyor belt. The front and rear actuating blocks are respectively matched with the curved sections on their respective sides.

[0009] Furthermore, the driving device includes a toggle cylinder hinged to the mounting platform, and a toggle rod connected to the piston part of the toggle cylinder is provided at one end of the rotating shaft; the top of the front toggle block and the rear toggle block are provided with fitting holes adapted to the rotating shaft, and the top end face of the top of the front toggle block and the rear toggle block is provided with a pin hole, and a positioning pin connected to the rotating shaft is provided in the pin hole; the bottom of the front toggle block and the rear toggle block is formed with an arc-shaped surface on the side facing the bending plate for contact with the cardboard.

[0010] Furthermore, each bending plate on the frame is provided with a mounting seat, and a positioning plate is provided on the mounting seat. The positioning plate is provided with a set of assembly holes that are adapted to the straight plate part, and the straight plate part is set on the positioning plate.

[0011] Furthermore, the top cover folding structure includes side panel folding structures disposed on the front and rear sides of the cardboard box placement slot. The side panel folding structure includes a side panel guide block adapted to the inner side panel of the cardboard box. The left end of the side panel guide block is provided with a guide slope connected to the placement platform. The guide slope is inclined upward from left to right, and the left end of the guide slope is lower than the bottom of the cardboard box placement slot. The side panel guide block is formed with an arc-shaped part and a straight part from left to right facing the inner wall of the cardboard box placement slot. The straight part is clearance-fitted with the outer wall of the cardboard box placement slot, and the straight part is adapted to the inner side panel of the cardboard box. The arc-shaped part folds outward from right to left in a direction away from the cardboard box placement slot. The upper end face of the side panel guide block is provided with an upper cover guide plate, which includes a horizontal guide part and a folding guide part. The horizontal guide part is located at the right end of the upper end face of the side panel guide block, and its end facing the paper box placement groove extends to the top of the paper box placement groove. The folding guide part is formed at the left end of the horizontal guide part, and it folds outward from right to left in the direction away from the paper box placement groove. The straight plate part extends to the inner side of the curved part.

[0012] Furthermore, a folding cylinder is provided on the rear side of the cardboard box placement slot of the frame. The piston part of the folding cylinder is provided with a push block that can move back and forth with it. The upper end face of the side plate guide block located on the rear side of the cardboard box placement slot is formed with a guide groove that matches the push block. The guide groove is formed on the upper end face of the straight part of the side plate guide block and is located on the left side of the upper cover guide plate. The push block matches the inner cover plate of the cardboard box.

[0013] Furthermore, the upper right end of the side plate guide block located in front of the cardboard box placement slot of the frame is hinged with an upper limit plate that can rotate horizontally.

[0014] Furthermore, the frame is also equipped with a pressure cylinder, the piston of which is equipped with an upper pressure plate that can rise and fall with it. The upper pressure plate is equipped with a set of support columns, and the bottom of the support columns is equipped with a set of upper pressure blocks. The upper pressure blocks are adapted to the paper box placement groove and are positioned above the area between the two bending plates.

[0015] The beneficial effects of this utility model are as follows: The four-legged inward folding structure and the top cover folding structure enable the inward folding of the four legs of the cardboard box and the folding of the inner side panels, top cover, and inner cover. This allows for continuous and automated boxing of the cardboard box during the packaging of small tea bags. The entire structure is simple and reliable, effectively solving the problems of high labor costs, high labor intensity, and low boxing efficiency associated with manual boxing in existing technologies. Furthermore, before boxing, the small tea bags can be placed on the cardboard box placement slot containing the cardboard box, thus solving the problem of cardboard box deformation and bursting that easily occurs during the packaging process when the small tea bags are packed first and then the cardboard box is assembled.

[0016] The front left leg of the cardboard box is folded inward to the right by the front actuating block, and the rear left leg is folded inward to the right by the rear actuating block. This, in conjunction with the bending plate, ensures that the box remains in an inward-folded state when it enters the bending plate's internal area. Simultaneously, the bending plate guides the front right leg and rear right leg of the cardboard box to fold inward to the left. Finally, the straight plate limits the folding of all four legs of the cardboard box, ensuring a full inward fold until the inward folding of all four legs is complete. This effectively solves the problems of low automation, high labor costs, high labor intensity, and low box-making efficiency associated with manual inward folding of the four legs in existing technologies.

[0017] The actuating cylinder, actuating lever, and rotating shaft work together to achieve reliable rotation of the rotating shaft, while the structure is relatively simple and the cost is low.

[0018] The front and rear actuating blocks are fitted onto the rotating shaft through mounting holes, and their positions on the rotating shaft can be controlled by positioning pins. This allows the positions of the front and rear actuating blocks relative to the paper box mounting slot to be adjustable, facilitating the adjustment of the positions of the front and rear actuating blocks during operation.

[0019] The curved surface design effectively prevents damage to the cardboard box when the front and rear toggle blocks are moved.

[0020] The side panel folding structure enables the folding of the front and rear inner side panels of the cardboard box, while the top cover guide plate enables the folding of the top cover and inner cover of the cardboard box. The entire structure can achieve continuous and automated folding of the two inner side panels, the top cover, and the inner cover of the cardboard box.

[0021] The design of the pressure cylinder and the upper pressure block allows for better coordination with the upper cover guide plate to achieve the folding of the upper cover and inner cover.

[0022] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the cardboard box when the four corners are not folded inward.

[0025] Figure 3 This is a schematic diagram of the structure of the cardboard box after the four corners are folded inward.

[0026] Figure 4 This is a schematic diagram of the structure after the inner side panel of the cardboard box is folded up.

[0027] Figure 5 This is a schematic diagram of the structure of the cardboard box after the top and inner covers are folded up.

[0028] 1. Frame, 2. Conveyor belt, 3. Carton placement slot, 4. Placement platform, 5. Auxiliary support, 6. Rotary shaft, 7. Front actuating block, 8. Rear actuating block, 9. Actuating cylinder, 10. Actuating rod, 11. Bending plate section, 12. Straight plate section, 13. Placement seat, 14. Positioning plate, 16. Side plate guide block, 17. Guide slope, 18. Arc section, 19. Straight section, 20. Horizontal guide section, 21. Folding guide section, 22. Folding cylinder, 23. Push block, 26. Upper limit plate, 27. Upper pressure block, 28. Front left foot, 29. Front right foot, 30. Rear left foot, 31. Rear right foot; 32. Inner side plate, 33. Top cover plate, 34. Inner cover plate. Detailed Implementation

[0029] Examples, such as Figures 1 to 5The device shown is a box-forming device for packaging bagged tea with cardboard, including a frame 1, a conveyor belt 2 set on the frame 1, a set of cardboard box placement slots 3 set on the conveyor belt 2, and placement platforms 4 set on both sides of the frame 1 on the conveyor belt 2; the placement platforms 4 are arranged from left to right with a four-legged inward folding structure and a top cover folding structure, the four-legged inward folding structure is used to realize the inward folding of the four legs of the cardboard box; the top cover folding structure is used to realize the folding of the inner side panel 32, the top cover 33, and the inner cover 34 of the cardboard box.

[0030] On the left side of the four-corner inward folding structure on the frame 1, there is also a packaging bag feeding device, which is used to feed small bags of tea into the cardboard box placement slot 3 containing cardboard boxes.

[0031] The four-corner inward folding structure includes an auxiliary support 5 mounted on the placement platform 4. A rotatable shaft 6 is mounted on the auxiliary support 5, which is positioned above the conveyor belt 2. The shaft 6 has a front actuating block 7 and a rear actuating block 8 that rotate with it. The front actuating block 7 is located at the front of the cardboard box placement slot 3 and is adapted to the front left foot 28 of the cardboard box plate. The rear actuating block 8 is located at the rear of the cardboard box placement slot 3 and is adapted to the rear left foot 30 of the cardboard box plate. A drive device for driving the shaft 6 to rotate is mounted on the placement platform 4. The worktable is located on the conveyor belt 2. A bending plate is also provided on the front and rear sides of the conveyor belt 2. The bending plate is located on the right side of the front actuating block 7 and the rear actuating block 8. A clearance gap adapted to the cardboard box is provided between the bottom of the bending plate and the placement platform 4. The bending plate includes a straight plate part 12 and a bent plate part 11. The straight plate part 12 is set close to the outer wall of the cardboard box placement groove 3. The bent plate part 11 is set at the end of the straight plate part 12 facing the auxiliary support 5 and is turned outward in the direction away from the conveyor belt 2. The front actuating block 7 and the rear actuating block 8 are adapted to the bent plate part 11 on the corresponding side.

[0032] The driving device includes a toggle cylinder 9 hinged to the mounting platform 4, and a toggle rod 10 connected to the piston of the toggle cylinder 9 at one end of the rotating shaft 6; the top ends of the front toggle block 7 and the rear toggle block 8 are provided with fitting holes adapted to the rotating shaft 6, and the top end faces of the top ends of the front toggle block 7 and the rear toggle block 8 are provided with pin holes, and a positioning pin connected to the rotating shaft 6 is provided in the pin holes; the bottom of the front toggle block 7 and the rear toggle block 8 is formed with an arc-shaped surface on the side facing the bending plate for contact with the cardboard board.

[0033] The drive unit can be as shown in the attached diagram of the instruction manual. Figure 1 The rotating shaft 6 in this case is connected to another rotating shaft 6 by setting a connecting arm. The actuating rod 10 is set on the other rotating shaft 6, and the piston of the cylinder 9 is moved to drive the other rotating shaft 6 to rotate. The rotation of the other rotating shaft 6 will drive the rotating shaft 6 in this case to rotate through the connecting rod.

[0034] Each bending plate on the frame 1 is provided with a mounting seat 13, and a positioning plate 14 is provided on the mounting seat 13. The positioning plate 14 is provided with a set of mounting holes that are adapted to the straight plate part 12. The straight plate part 12 is provided on the positioning plate 14.

[0035] The top cover folding structure includes side panel folding structures on the front and rear sides of the cardboard box placement groove 3. The side panel folding structure includes a side panel guide block 15 adapted to the inner side panel 32 of the cardboard box. The left end of the side panel guide block 15 is provided with a guide slope 17 connected to the placement platform 4. The guide slope 17 is inclined upward from left to right, and the left end of the guide slope 17 is lower than the bottom of the cardboard box placement groove 3. The side panel guide block 15 is formed with an arc-shaped part 18 and a straight part 19 connected from left to right facing the inner side wall of the cardboard box placement groove 3. The straight part 19 is clearance-fitted with the outer side wall of the cardboard box placement groove 3, and the straight part 19 is adapted to the inner side panel 32 of the cardboard box. The arc-shaped part 18 folds outward from right to left in a direction away from the cardboard box placement groove 3. The upper end face of the side panel guide block 15 is provided with an upper cover guide plate, which includes a horizontal guide portion 20 and a folding guide portion 21. The horizontal guide portion 20 is located at the right end of the upper end face of the side panel guide block 15, and its end facing the paper box placement groove 3 extends to the top of the paper box placement groove 3. The folding guide portion 21 is formed at the left end of the horizontal guide portion 20, and it folds upward and outward from right to left in a direction away from the paper box placement groove 3. The straight plate portion 12 extends to the inner side of the curved portion 18.

[0036] A folding cylinder 22 is provided on the rear side of the cardboard box placement slot 3 in the frame 1. The piston part of the folding cylinder 22 is provided with a push block 23 that can move back and forth with it. The upper end surface of the side plate guide block 15 located on the rear side of the cardboard box placement slot 3 is formed with a guide groove that matches the push block 23. The guide groove is formed on the upper end surface where the straight part 19 of the side plate guide block 15 is located, and is located on the left side of the upper cover guide plate. The push block 23 matches the inner cover plate 34 of the cardboard box.

[0037] The upper right end of the side plate guide block 15 of the frame 1, located in front of the paper box placement slot 3, is hinged to an upper limit plate 26 that can rotate horizontally.

[0038] The frame 1 is also equipped with a pressure cylinder. The piston part of the pressure cylinder is equipped with an upper pressure plate that can be raised and lowered with it. A set of support columns is provided on the upper pressure plate, and a set of upper pressure blocks 27 is provided at the bottom of the support columns. The upper pressure blocks 27 are adapted to the paper box placement groove 3 and are located above the area between the two bending plates.

[0039] The upper limit plate 26 can remain folded when the top cover 33 and inner cover 34 on the cardboard box are bent and the product enters the next process.

[0040] The straight section 12 extends to the inside of the curved section 18 to ensure that the four legs of the carton board are always folded inward when the carton board enters the side guide block 15.

[0041] The rotation of the pivot 6 will cause the front actuating block 7 and the rear actuating block 8 on it to rotate. The clockwise downward swing of the front actuating block 7 and the rear actuating block 8 will connect with the outer walls of the front left foot 28 and the rear left foot 30 of the cardboard box, and drive the front left foot 28 and the rear left foot 30 of the cardboard box to move to the right to achieve inward folding. At the same time, the bending plate 11 will force the front right foot 29 and the rear right foot 31 of the cardboard box to move to the left, and achieve inward folding of the front right foot 29 and the rear right foot 31 of the cardboard box. The four feet of the cardboard box that have already been folded inward will be fully folded inward due to the limiting of the straight plate 1212.

[0042] As the inner side panel 32 of the cardboard box moves along the conveyor belt 2 through the curved section 18, it will gradually fold upward until it is completely folded upward at the straight section 19. The left end of the guide slope 17 is lower than the bottom of the cardboard box placement groove 3, which can ensure that the inner side panel 32 of the cardboard box can smoothly move along the conveyor belt 2 to the guide slope 17, and gradually bend upward along the guide slope 17 and the curved section 18.

[0043] After the inner side panel 32 of the cardboard box is bent upwards, the upper cover 33 and the inner cover 34 are gradually bent through the folding guide part 21 of the upper cover guide plate, and the bending is reinforced by the horizontal guide part 20; at the same time, a folding cylinder 22 is set, and the push block 23 is driven by the folding cylinder 22 to move along the guide groove, which can realize the initial inward folding of the inner cover plate.

[0044] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms “a” and “an” as used herein are also intended to include the plural. It should also be understood that the terms “comprising” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, without excluding the presence or addition of one or more other features, integers, steps, operations, units, components, and / or combinations thereof.

[0047] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A box-forming device for packaging bagged tea into cardboard boxes, comprising a frame, a conveyor belt mounted on the frame, a set of cardboard box placement slots on the conveyor belt, and placement platforms on both sides of the frame located on the conveyor belt; characterized in that: The placement platform is equipped with a four-legged inward folding structure and a top cover folding structure from left to right. The four-legged inward folding structure is used to fold the four legs of the cardboard box inward; the top cover folding structure is used to fold the inner side panel, top cover, and inner cover of the cardboard box. The four-corner inward folding structure includes an auxiliary support mounted on a placement platform. A rotatable shaft is mounted on the auxiliary support, positioned above the conveyor belt. The shaft has a front actuating block and a rear actuating block that rotate with it. The front actuating block is located on the front side of the cardboard box placement slot and matches the front left foot of the cardboard box. The rear actuating block is located on the rear side of the cardboard box placement slot and matches the rear left foot of the cardboard box. A drive device for rotating the shaft is mounted on the placement platform. A bending plate is also mounted on both sides of the workbench, front and rear of the conveyor belt, to the right of the front and rear actuating blocks. A clearance is provided between the bottom of the bending plate and the placement platform to accommodate the cardboard box. The bending plate includes a straight section and a curved section. The straight section is positioned close to the outer wall of the cardboard box placement slot, and the curved section is located at the end of the straight section facing the auxiliary support and is turned outwards in the direction away from the conveyor belt. The front and rear actuating blocks are respectively matched with the curved sections on their respective sides.

2. The box-forming device for packaging bagged tea using cardboard boxes according to claim 1, characterized in that: The driving device includes a toggle cylinder hinged to the mounting platform, and a toggle rod connected to the piston of the toggle cylinder at one end of the rotating shaft; the top of the front toggle block and the rear toggle block are provided with fitting holes adapted to the rotating shaft, and the top end face of the top of the front toggle block and the rear toggle block is provided with a pin hole, and a positioning pin connected to the rotating shaft is provided in the pin hole; the bottom of the front toggle block and the rear toggle block is formed with an arc-shaped surface on the side facing the bending plate for contact with the cardboard.

3. The box-forming device for packaging bagged tea using cardboard boxes according to claim 1 or 2, characterized in that: Each bending plate on the frame is provided with a mounting seat, and a positioning plate is provided on the mounting seat. The positioning plate is provided with a set of assembly holes that are adapted to the straight plate part. The straight plate part is set on the positioning plate.

4. The box-forming device for packaging bagged tea using cardboard boxes according to claim 3, characterized in that: The top cover folding structure includes side panel folding structures on the front and rear sides of the cardboard box placement slot. Each side panel folding structure includes a side panel guide block adapted to the inner side panel of the cardboard box. The left end of the side panel guide block has a guide slope connected to the placement platform. The guide slope is inclined upwards from left to right, with its left end lower than the bottom of the cardboard box placement slot. The side panel guide block has an arc-shaped portion and a straight portion formed from left to right facing the inner wall of the cardboard box placement slot. The straight portion is clearance-fitted to the outer wall of the cardboard box placement slot, and the straight portion is adapted to the inner side panel of the cardboard box. The arc-shaped portion folds outwards from right to left in a direction away from the cardboard box placement slot. A top cover guide plate is provided on the upper end face of the side panel guide block. The top cover guide plate includes a horizontal guide part and a folding guide part. The horizontal guide part is located at the right end of the upper end face of the side panel guide block, and its end facing the paper box placement groove extends to the top of the paper box placement groove. The folding guide part is formed at the left end of the horizontal guide part, and it folds outward from right to left in the direction away from the paper box placement groove. The straight section extends to the inside of the curved section.

5. The box-forming device for packaging bagged tea using cardboard boxes according to claim 4, characterized in that: A folding cylinder is installed on the rear side of the cardboard box placement slot of the frame. The piston of the folding cylinder is equipped with a push block that can move back and forth with it. The upper end face of the side plate guide block located on the rear side of the cardboard box placement slot is formed with a guide groove that matches the push block. The guide groove is formed on the upper end face of the straight part of the side plate guide block and is located on the left side of the upper cover guide plate. The push block matches the inner cover plate of the cardboard box.

6. The box-forming device for packaging bagged tea using cardboard boxes according to claim 5, characterized in that: The frame is also equipped with a pressure cylinder. The piston of the pressure cylinder is equipped with an upper pressure plate that can be raised and lowered with it. A set of support columns are provided on the upper pressure plate, and a set of upper pressure blocks are provided at the bottom of the support columns. The upper pressure blocks are adapted to the paper box placement groove and are located above the area between the two bending plates.

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