Paperboard creasing device

Abstract

A paperboard creasing device comprises a workbench, a bearing assembly is arranged on the workbench, the bearing assembly is fixedly arranged on the workbench, and the bearing assembly is provided with a plurality of bearing table tops and bending grooves located among the bearing table tops; and the downward pressing assembly comprises a downward pressing unit, the downward pressing unit and the bearing assembly are arranged correspondingly, and the downward pressing unit comprises at least one pressing piece corresponding to one bearing table face and a bending piece opposite to all the bending grooves. The paperboard creasing device provided by the embodiment of the utility model is used for bending and creasing flat paperboards at set positions, so that the labor intensity of operators can be reduced, the dependence on the operators is reduced during processing of lining paperboards of packaging boxes, the production efficiency is improved, and the production cost is reduced.

Description

A cardboard folding device Technical Field

[0001] This utility model relates to the field of packaging box inner cardboard processing technology, specifically to a cardboard crease device. Background Technology

[0002] Packaging boxes are one of the most common packaging materials used to hold and package items. As people's pursuit of a higher standard of living continues to improve, they are paying more attention to the quality of packaging boxes when choosing items, requiring exquisite packaging materials.

[0003] Currently, when packaging items inside boxes, it's necessary to place inner cardboard linings inside the box and fold them to create convenient placement and clamping positions for the items. However, due to the thinness of the cardboard and the numerous folds required, some printing factories still rely on manual folding along the creases. This results in low production efficiency and high production costs during the processing of the inner cardboard linings.

[0004] Therefore, a technical solution is urgently needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a cardboard crease device. To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] A cardboard crease device includes a worktable on which:

[0007] A support assembly is fixedly mounted on the workbench, and the support assembly is provided with a plurality of support surfaces and a bending groove located between the plurality of support surfaces.

[0008] The pressing assembly includes:

[0009] Mounting plate, which is suspended above the support assembly, also includes

[0010] A pressing unit, which is disposed corresponding to the supporting assembly, includes at least one pressing member corresponding to one of the supporting platform surfaces and a bending member corresponding to one of all the bending grooves, and also includes...

[0011] The pressing cylinder includes multiple cylinders that are respectively corresponding to and connected to the pressing member and the bending member, and are used to drive the pressing member and the bending member to reciprocate in the vertical direction.

[0012] Furthermore, the support assembly includes a fixed platform and a movable platform unit slidably connected to the worktable, the top surfaces of the fixed platform and the movable platform unit defining the support platform surface.

[0013] The fixed platform is fixedly mounted on the workbench;

[0014] The movable platform unit includes:

[0015] The first movable platform is disposed on one side of the fixed platform and defines a bending groove therebetween with the fixed platform.

[0016] A second movable platform is located on the other side of the fixed platform and defines a bending groove therewith the fixed platform. It also includes...

[0017] The third movable platform is located on the other side of the second movable platform away from the fixed platform, and defines a bending groove between the third and the second movable platform.

[0018] Furthermore, the supporting assembly also includes three closed cylinders that are respectively connected to the first movable platform, the second movable platform, and the third movable platform for driving the first movable platform, the second movable platform, and the third movable platform to move toward the bending groove.

[0019] Furthermore, a buffer is installed on the surface of the clamping member facing the support platform, and the buffer is attached to the surface of the clamping member.

[0020] Furthermore, the lower end of the bent piece has an edge corresponding to the inner wall of the bending groove, which is set as an arc transition arc.

[0021] Furthermore, the fixed platform is provided with an absorption cavity, which is opened inside the fixed platform along the transverse or longitudinal direction and penetrates the fixed platform.

[0022] Furthermore, the two outermost support platforms of the support assembly are provided with limiting components, which include limiting blocks that limit movement in the lateral and longitudinal directions.

[0023] The beneficial effects of this utility model are as follows:

[0024] This embodiment provides a cardboard folding device for bending and folding flat cardboard at predetermined positions, thereby reducing the labor intensity of operators, reducing reliance on personnel for processing inner lining cardboard of packaging boxes, improving production efficiency, and reducing production costs. During the cardboard folding process, the cardboard is placed on a supporting assembly and supported by a supporting surface. The cardboard covers the bending groove. Under the action of a pressing cylinder, the pressing unit causes the pressing and bending components to descend sequentially to fold the cardboard. Specifically, the pressing component descends to press the cardboard against the supporting surface, and the bending components descend sequentially to contact the cardboard and press it towards the bending groove, thus bending the cardboard within the bending groove. Multiple bending components descend sequentially, thereby completing the bending operation of the cardboard at multiple positions. Attached Figure Description

[0025] Figure 1 is a front view of this utility model.

[0026] Figure 2 is a three-dimensional structural diagram of this utility model.

[0027] Figure 3 is a schematic diagram of the structure of a cardboard that needs to be bent.

[0028] In the diagram: 100-Workbench; 200-Supporting component; 210-Supporting surface; 220-Bending groove; 300-Pressing component; 310-Clamping component; 320-Bending component; 330-Pressing cylinder; 230-Fixed platform; 241-First movable platform; 242-Second movable platform; 243-Third movable platform; 244-Closing cylinder; 231-Absorption chamber; 250-Limiting component; 251-Limiting block. Detailed Implementation

[0029] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0030] This embodiment provides a cardboard folding device for bending and folding flat cardboard at predetermined positions, thereby reducing the labor intensity of operators, reducing reliance on personnel in the processing of inner lining cardboard for packaging boxes, improving production efficiency, and reducing production costs. Figure 3 shows an inner lining cardboard currently available on the market that requires folding and creasing. It includes multiple folds and needs to be folded along these folds, resulting in the flat cardboard folded into the shape shown, thus supporting the item. It should be noted that the shape of the cardboard shown in Figure 3 is the shape after processing by this device. When placing it inside the packaging box, it is usually rotated 180 degrees before placement, creating a large placement concave surface inside the packaging box, with a smaller placement groove on one side of the concave surface.

[0031] As shown in Figures 1-2, the cardboard crease device provided in this embodiment includes a worktable 100, on which a support component 200 and a pressing component 300 are disposed. The cardboard is creased and folded by pressing down on the pressing component 300 between the support component 200 and the pressing component 300. Specifically, the support component 200 is fixedly mounted on the worktable 100 and has several support surfaces and bending grooves 220 located between the support surfaces; the pressing component 300... The 00 includes a mounting plate 301, a pressing unit, and a pressing cylinder 330. The mounting plate 301 is suspended above the support assembly 200. The pressing unit is correspondingly arranged with the support assembly 200 and includes at least one clamping member 310 corresponding to one of the support platform surfaces and one bending member 320 corresponding to all the bending grooves 220. The pressing cylinder 330 includes multiple cylinders that are respectively corresponding to and connected to the clamping member 310 and the bending member 320, and are used to drive the clamping member 310 and the bending member 320 to reciprocate in the vertical direction.

[0032] During the folding process of the cardboard, the cardboard is placed on the support assembly 200 and supported by the support surface 210. At this time, the cardboard covers the bending groove 220. Under the action of the pressing cylinder 330, the pressing unit causes the pressing member 310 and the bending member 320 to descend in sequence to fold the cardboard. Specifically, the pressing member 310 descends and presses the cardboard onto the support surface 210. The bending member 320 descends in sequence and contacts the cardboard, pressing the cardboard towards the bending groove 220, so that the cardboard is bent within the bending groove 220. Multiple bending members 320 descend in sequence, thereby completing the bending operation of the cardboard at multiple positions.

[0033] In this embodiment, the support component 200 includes a fixed platform 230 and a movable platform unit slidably connected to the worktable 100. The top surfaces of the fixed platform 230 and the movable platform unit define the support platform surface. The fixed platform 230 is fixedly mounted on the worktable 100.

[0034] The movable table unit includes a first movable table 241, a second movable table 242, and a third movable table 243. All three movable tables are slidably connected to the surface of the workbench 100. The first movable table 241 is located on one side of the fixed table 230 and defines a bending groove 220 with the fixed table 230. The second movable table 242 is located on the other side of the fixed table 230 and defines a bending groove 220 with the fixed table 230. The third movable table 243 is located on the other side of the second movable table 242 away from the fixed table 230 and defines a bending groove 220 between the third movable table 242 and the second movable table 242.

[0035] It is worth noting that, since the cardboard needs to be bent at multiple locations, in this embodiment, the top surface of the second movable platform 242 also defines the supporting surface 210. Similarly, a pressing member 310 corresponding to the second movable platform 242 is provided on the mounting plate 301 to press the cardboard onto the top surface of the second movable platform 242.

[0036] During the specific crease processing, the clamping member 310 corresponding to the fixed table 230 moves downward under the action of the pressing cylinder 330 to press the cardboard onto the fixed table 230. At this time, the bending member 320 corresponding to the bending groove 220 defined by the first movable table 241 and the fixed table 230 moves downward and presses the cardboard into the bending groove 220. After pressing the cardboard to the bottom of the bending groove 220, the cardboard is bent within the bending groove 220. The bending member 320 presses the cardboard into the bending groove 220 located between the second movable table 242 and the fixed table 230, so that the cardboard is bent within the bending groove 220; then, the pressing member 310 corresponding to the second movable table 242 presses the cardboard onto the top surface of the second movable table 242; finally, the last bending member 320 descends to press the cardboard into the pressing groove 220 defined by the third movable table 243 and the second movable table 242, and presses and bends the cardboard within it.

[0037] To improve the effect of pressing and bending the cardboard, a closed cylinder 244 is also provided on the worktable 100 to push the three movable tables to move, thereby clamping the bending piece 320 located in the bending groove 220. This ensures that the cardboard pressed into the bending groove 220 is pressed tightly, ensuring that the bent cardboard has clear indentations, guaranteeing the effect of the cardboard after folding, and reducing the occurrence of elastic restoring. Specifically, the support assembly 200 also includes three closed cylinders 244 that are respectively connected to the first movable table 241, the second movable table 242, and the third movable table 243 to drive the first movable table 241, the second movable table 242, and the third movable table 243 to move toward the bending groove 220.

[0038] To prevent the cardboard from being pressed too tightly during the clamping process, and to prevent the cardboard from tearing due to being fixed in place when the bending member 320 is pressed towards the bending groove 220, a cushioning member is installed on the surface of the clamping member 310 facing the support table. The cushioning member is attached to the surface of the clamping member 310. By providing the cushioning member, the cardboard can still have slight movement when it is clamped, thereby preventing the cardboard from tearing.

[0039] To prevent damage to the cardboard from the excessively sharp bottom edge of the tensioning member 310 during the pressing process of the bending member 320 towards the bending groove 220, an arc-shaped transition arc is set at the lower end of the bending member 320 corresponding to the inner wall of the bending groove 220. By setting the arc-shaped arc, which is equivalent to a chamfered structure, the radius of the bending position of the cardboard can be increased during the bending process, thereby preventing the cardboard from being crushed by the bending member 320 during the bending process.

[0040] To further ensure that the cardboard is pressed tightly onto the fixed platform 230 without being overly compressed, an absorption cavity 231 is provided in the fixed platform 230. The absorption cavity 231 is formed inside the fixed platform 230 along the transverse or longitudinal direction and extends through the fixed platform 230. The absorption cavity 231 can absorb the impact force and compression force on the pressing member 310, especially the impact force, thereby preventing the pressing member 310 from impacting the fixed platform 230 under the action of downward air pressure and causing impact damage to the cardboard.

[0041] In this embodiment, to ensure accurate placement of the cardboard after it is placed on the support surface 210, limiting components 250 are provided on the two outermost support platforms of the support assembly 200. Each limiting component 250 includes limiting blocks 251 that limit movement in both the transverse and longitudinal directions. When the intercom cardboard is placed on the support assembly, accurate positioning is ensured by the limiting components. In this embodiment, the limiting components are respectively located on the first and third movable platforms.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A cardboard folding device, comprising a worktable, characterized in that, The workbench is provided with: a support assembly, which is fixedly mounted on the workbench and has a plurality of support surfaces and bending grooves located between the plurality of support surfaces; and a pressing assembly, which includes a mounting plate suspended above the support assembly and a pressing unit corresponding to the support assembly. The pressing unit includes at least one clamping member corresponding to one of the support surfaces and a bending member corresponding to one of the bending grooves. It also includes a pressing cylinder, which includes a plurality of cylinders corresponding to and kinetically connected to the clamping member and the bending member, for driving the clamping member and the bending member to reciprocate in the vertical direction.

2. The cardboard crease device according to claim 1, characterized in that, The supporting assembly includes a fixed platform and a movable platform unit slidably connected to the worktable. The top surfaces of the fixed platform and the movable platform unit define the supporting platform surface. The fixed platform is fixedly mounted on the worktable. The movable platform unit includes a first movable platform disposed on one side of the fixed platform and defining a bending groove with the fixed platform, a second movable platform disposed on the other side of the fixed platform and defining a bending groove with the fixed platform, and a third movable platform disposed on the side of the second movable platform away from the fixed platform and defining a bending groove between the third movable platform and the second movable platform.

3. A cardboard crease device according to claim 2, characterized in that, The supporting assembly also includes three closed cylinders that are respectively connected to the first movable platform, the second movable platform and the third movable platform for driving the first movable platform, the second movable platform and the third movable platform to move toward the bending groove.

4. A cardboard crease device according to claim 1, characterized in that, A buffer is installed on the surface of the clamping member facing the support platform, and the buffer is attached to the surface of the clamping member.

5. A cardboard crease device according to claim 1, characterized in that, The lower end of the bent component has an edge corresponding to the inner wall of the bending groove, which is set as an arc transition circle.

6. The cardboard crease device according to claim 2, characterized in that, The fixed platform is provided with an absorption cavity, which is opened inside the fixed platform along the transverse or longitudinal direction and penetrates the fixed platform.

7. A cardboard crease device according to claim 1, characterized in that, Limiting components are provided on the two outermost support platforms of the supporting component, and the limiting components include limiting blocks that limit movement in the lateral and longitudinal directions.

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