A paper box upper cover folding device in a tea leaf boxing process

Abstract

The utility model relates to a paper box upper cover folding device in tea leaf boxing process, and the side plate folding structure is arranged on the front and back of paper box placing groove's setting platform respectively, the side plate folding structure includes the side plate guide block that is matched with the inner side plate of paper box board, and the left end of side plate guide block is provided with the guide inclined plane that setting platform is connected, the guide inclined plane is set to the left from the right and inclines upwards, and the left end of guide inclined plane is lower than the groove bottom of paper box placing groove, the inner side wall of side plate guide block is formed with the connected arc surface part and straight surface part from the left to the right, the straight surface part and paper box placing groove outer side wall gap fit, the straight surface part and the inner side plate of paper box board are matched, and the arc surface part is turned out from right to left to the direction of deviating from paper box placing groove. The utility model can effectively solve the problem that the inner side plate, upper cover plate and inner cover plate are folded by manual in the prior art, and the problems of high labor intensity and high labor cost are solved.

Description

Technical Field

[0001] This utility model relates to the field of tea packaging, and in particular to a paper box lid folding device in the process of packing 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] During the folding process of the cardboard box, after the bagged tea enters the bottom area of ​​the cardboard box, its four corners need to be folded inward first, then the two inner side panels need to be folded over, and finally the top cover and inner cover need to be folded over to achieve the initial box formation.

[0005] If the folding of the two inner side panels, the top cover, and the inner cover of the cardboard box is done manually during the tea packaging process, there will be problems such as low automation, high labor costs, high labor intensity, and low boxing efficiency. Summary of the Invention

[0006] The purpose of this utility model is to provide a paper box lid folding device in the process of tea packaging, which can effectively solve the problems of high labor intensity and high labor cost in the existing technology, which mainly relies on manual folding of the inner side plate, the top cover plate and the inner cover plate. At the same time, it can also provide a new type of paper box for market selection.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: a paper box lid folding device in the process of tea boxing, including a frame, a conveyor belt set on the frame, a set of paper box placement grooves on the conveyor belt, and placement platforms set on the front and rear sides of the frame at the conveyor belt; the placement platforms are respectively provided with side plate folding structures on the front and rear sides of the paper box placement grooves, the side plate folding structure including a side plate guide block adapted to the inner side plate of the paper box, and a guide slope connected to the placement platform at the left end of the side plate guide block; 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 paper box placement groove; the side plate guide block is formed with an arc-shaped part and a straight part from left to right facing the inner side wall of the paper box placement groove; the straight part is clearance-fitted with the outer side wall of the paper box placement groove, and the straight part is adapted to the inner side plate of the paper box; the arc-shaped part folds outward from right to left in a direction away from the paper box placement groove; 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.

[0008] 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.

[0009] 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.

[0010] Furthermore, the placement platform is equipped with four-legged guide seats on the front and rear sides of the conveyor belt, and four-legged limiting plates are installed on the four-legged guide seats. The four-legged limiting plates are suspended above the placement platform, and a clearance adapted to the cardboard is formed between the four-legged limiting plates and the placement platform. The four-legged limiting plates are located on the left side of the side plate guide block and extend to the inner side of the curved surface.

[0011] 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. 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 four-legged limiting plates.

[0012] The beneficial effects of this utility model are as follows: the side panel folding structure enables the folding of the front and rear inner side panels of the cardboard box, and the top cover guide plate enables the folding of the top cover and inner cover of the cardboard box. The entire structure can realize the folding of the two inner side panels, the top cover, and the inner cover of the cardboard box in a continuous and automated manner, effectively solving the problems of high labor intensity and high labor costs in the existing technology, which mainly relies on manual folding of the inner side panels, the top cover, and the inner cover. At the same time, it can also provide a new type of cardboard box for the market to choose from.

[0013] The upper limit plate is designed to maintain a good flipped state after the upper cover and inner cover are folded and enter the next process, which facilitates the implementation of the subsequent process.

[0014] The four-legged limiting plates allow for better coordination with the side panel folding structure to achieve the folding of the two inner side panels.

[0015] 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.

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the inner side panel of the cardboard box when it is not folded.

[0019] Figure 3 This is a schematic diagram of the structure after the inner side panel of the cardboard box is folded up. In the diagram, the top cover and inner cover are in the unfolded state.

[0020] Figure 4 This is a schematic diagram of the structure of the cardboard box after the top and inner covers are folded up.

[0021] 1. Frame, 2. Conveyor belt, 3. Carton placement slot, 4. Placement platform, 5. Side plate guide block, 6. Guide slope, 7. Curved surface, 8. Straight surface, 9. Horizontal guide section, 10. Folding guide section, 11. Folding cylinder, 12. Push block, 13. Four-legged guide seat, 14. Four-legged limit plate, 15. Upper limit plate, 16. Upper pressure block, 17. Inner side plate, 18. Upper cover plate, 19. Inner cover plate. Detailed Implementation

[0022] Examples, such as Figures 1 to 4 The illustrated device for flipping the lid of a tea box during the packaging process includes a frame 1, a conveyor belt 2 mounted on the frame 1, a set of paper box placement grooves 3 mounted on the conveyor belt 2, and placement platforms 4 located on the front and rear sides of the frame 1 at the conveyor belt 2. Side panel flipping structures are respectively provided on the front and rear sides of the placement platforms 4 at the paper box placement grooves 3. Each side panel flipping structure includes a side panel guide block 5 adapted to the inner side panel 17 of the paper box. A guide slope 6 connected to the placement platform 4 is provided at the left end of the side panel guide block 5. The guide slope 6 is inclined upwards from left to right, and its left end is lower than the bottom of the paper box placement groove 3. The side panel guide block 5 has an arc-shaped portion 7 and a straight portion 8 formed from left to right facing the inner wall of the paper box placement groove 3. The straight portion 8 is clearance-fitted with the outer wall of the paper box placement groove 3, and is adapted to the inner side panel 17 of the paper box. The arc-shaped portion 7 flips outwards from right to left in a direction away from the paper box placement groove 3. The upper end face of the side panel guide block 5 is provided with an upper cover guide plate, which includes a horizontal guide part 9 and a folding guide part 10. The horizontal guide part 9 is located at the right end of the upper end face of the side panel guide block 5, and its end facing the paper box placement groove 3 extends to the top of the paper box placement groove 3. The folding guide part 10 is formed at the left end of the horizontal guide part 9, and it folds upward and outward from right to left in a direction away from the paper box placement groove 3.

[0023] A folding cylinder 11 is provided on the rear side of the paper box placement slot 3 of the frame 1. The piston part of the folding cylinder 11 is provided with a push block 12 that can move back and forth with it. The upper end surface of the side plate guide block 5 located on the rear side of the paper box placement slot 3 is formed with a guide groove that matches the push block 12. The guide groove is formed on the upper end surface where the straight part 8 of the side plate guide block 5 is located, and is located on the left side of the upper cover guide plate. The push block 12 matches the inner cover plate 19 of the paper box plate.

[0024] The upper right end of the side plate guide block 5 of the frame 1, located in front of the paper box placement slot 3, is hinged to an upper limit plate 15 that can rotate horizontally.

[0025] The placement platform 4 is provided with four-legged guide seats 13 on the front and rear sides of the conveyor belt 2. Four-legged limit plates 14 are provided on the four-legged guide seats 13. The four-legged limit plates 14 are suspended above the placement platform 4. A clearance is formed between the four-legged limit plates 14 and the placement platform 4 to match the cardboard. The four-legged limit plates 14 are located on the left side of the side plate guide block 5 and extend to the inner side of the arc surface 7.

[0026] 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 16 is provided at the bottom of the support columns. The upper pressure blocks 16 are adapted to the paper box placement groove 3 and are located above the area between the two four-legged limit plates 14.

[0027] The specific structure of the pressure equalization cylinder and the folding cylinder 11, as well as the corresponding supporting devices, such as the control system, air pipes, and electromagnetic devices, are not innovations of this case. Their specific structures and models can be implemented by those skilled in the art based on existing technologies as needed.

[0028] As the inner side panel 17 of the cardboard box moves along the conveyor belt 2 through the curved section 7, it will gradually fold upward until it is completely folded upward at the straight section 8. The left end of the guide slope 6 is lower than the bottom of the cardboard box placement groove 3, which can ensure that the inner side panel 17 of the cardboard box can smoothly move along the conveyor belt 2 to the guide slope 6, and gradually bend upward along the guide slope 6 and the curved section 7.

[0029] After the inner side panel 17 of the cardboard box is bent upwards, the upper cover 18 and the inner cover 19 are gradually bent through the folding guide part 10 of the upper cover guide plate, and the bending is reinforced by the horizontal guide part 9; at the same time, a folding cylinder 11 is provided, and the push block 12 is driven by the folding cylinder 11 to move along the guide groove, so as to realize the initial inward folding of the inner cover plate.

[0030] The upper limit plate 15 can remain folded when the top cover 18 and inner cover 19 on the cardboard box are bent and the product enters the next process.

[0031] The side guide block 5 ensures that the four corners of the cardboard box are always folded inward when the cardboard box enters the side guide block 5. The pressing cylinder drives the upper pressure plate to press down, which makes the bagged tea on the cardboard box more evenly distributed, while the height of the bagged tea meets the requirements and does not affect the subsequent top cover folding.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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 paper box lid folding device for tea packaging, comprising a frame, a conveyor belt mounted on the frame, a set of paper box placement slots on the conveyor belt, and placement platforms on the front and rear sides of the frame; characterized in that: The placement platform is equipped with side panel folding structures on both the front and rear sides of the cardboard box placement slot. Each side panel folding structure includes a side panel guide block that matches the inner side panel of the cardboard box. The left end of the side panel guide block is provided with a guide slope that connects to the placement platform. The guide slope is inclined upwards 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 has an arc-shaped part and a straight part formed 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 matches the inner side panel of the cardboard box. The arc-shaped part folds outwards 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.

2. The paper box lid folding device in the tea packaging process according to claim 1, 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.

3. The paper box lid folding device during the tea packaging process according to claim 1 or 2, characterized in that: The upper right end of the side plate guide block located in front of the paper box placement slot of the frame is hinged to an upper limit plate that can rotate horizontally.

4. The paper box lid folding device in the tea packaging process according to claim 3, characterized in that: The placement platform is equipped with four-legged guide seats on both the front and rear sides of the conveyor belt. Four-legged limit plates are installed on the four-legged guide seats. The four-legged limit plates are suspended above the placement platform. A clearance is formed between the four-legged limit plates and the placement platform to accommodate the cardboard. The four-legged limit plates are located on the left side of the side plate guide block and extend to the inner side of the curved surface.

5. The paper box lid folding device in the tea packaging process according to claim 3, 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 slot and are located above the area between the two four-legged limit plates.

Images