Paper box double-edgefold forming equipment
Through the design of the bifold edge forming equipment of the paper box, the first folding mechanism and the second folding mechanism are used to fold the film and bond the film sheet in half and heat pressing and bond, which solves the problem of insufficient edge structure of the paper lunch box, and realizes the problem of the paper lunch box. The effect of improving the strength and stability of the edge of the carton.
Patent Information
- Application Number
- CN202421026916.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The edge structure of the existing paper lunch boxes is single layer, resulting in insufficient strength and easy collapse. Although increasing the thickness of the cardboard can improve, it increases the cost and bending difficulty.
A paper box bifold edge forming device is designed, and the filmed paper sheet is folded in the vertical direction by the first folding mechanism, and the second folding mechanism is folded in half in the horizontal direction and heat-pressing bonding is realized through the hot pressing unit to form The folded edge portion is folded to increase the structural strength of the edge of the paper box.
It effectively improves the structural strength of the edge of the carton, reduces the risk of collapse, especially when the box cover is fitted, and the equipment can be used to improve the utilization rate of the carton forming assembly line equipment.
Smart Images
Figure CN222223618U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of paper box forming equipment, in particular to a paper box double-folding forming equipment. Background Art
[0002] Existing paper lunch boxes are mainly manufactured by mechanical assembly lines. The edges of paper lunch boxes are usually formed by guiding extrusion during the cardboard pressing process, so that the edges of paper lunch boxes are mostly single-layer structures. Therefore, when the paper lunch box is used with a box cover, it does not have good strength characteristics and is prone to collapse at the corners. Although it can usually be improved by increasing the thickness of the cardboard, the above method increases the cost of consumables on the one hand, and increases the difficulty of bending the cardboard on the other hand. Utility Model Content
[0003] The utility model aims to provide a paper box double-folding forming device, which can improve the edge structure strength of the formed paper box and ensure the use effect of the paper box.
[0004] The technical solution adopted by the utility model to solve the above problems is:
[0005] Carton double folding forming equipment, including:
[0006] A first folding mechanism is used to clamp and convey the laminated paper sheet in the vertical direction, and to fold the folded edge portion of the laminated paper sheet upward relative to the folding portion;
[0007] The second folding mechanism is arranged around the first folding mechanism. The second folding mechanism is used to push the folded folded part to fold upward in the horizontal direction, and the folded folded part is heat-pressed and bonded by the heat-pressing unit.
[0008] As a further improvement of the above technical solution, the first folding mechanism includes an upper mold base and a lower mold base, the upper mold base is located directly above the lower mold base and is vertically slidably arranged on the lower mold base, the lower mold base is equipped with a first linear drive device for driving the upper mold base to move relative to the lower mold base, the lower mold base is detachably installed on the machine body, the upper mold base is provided with a first abutment seat for abutting the coated paper sheet, the first abutment seat is located directly below the upper mold base, and the lower mold base is vertically slidably arranged with a second abutment seat for placing the coated paper sheet, the second abutment seat is located directly below the first abutment seat and a first spring is provided between the second abutment seat and the lower mold base, the two ends of the first spring respectively abut against the second abutment seat and the lower mold base, the lower mold base is provided with a plurality of first abutment blocks corresponding to the folding parts one by one, each first abutment block is arranged around the second abutment seat and the outer end of the first abutment block and the corresponding folding part are on the same vertical straight line, and the top surface of the second abutment seat is higher than the top surface of the first abutment block.
[0009] As a further improvement of the above technical solution, the second folding mechanism includes a plurality of first sliding seats corresponding to the first abutting blocks one by one, the first sliding seats are vertically slidably arranged on the lower die seat, a second spring is arranged between the first sliding seat and the lower die seat, the two ends of the second spring respectively abut against the first sliding seat and the lower die seat, a push block for pushing the folding portion to be folded in half is horizontally slidably arranged on the first sliding seat, and a second linear drive device is provided for driving the push block to move relative to the first sliding seat, the bottom end of the inner end of the push block is in an arc shape, the lower die seat is provided with a guide groove for guiding the push block to slide obliquely relative to the lower die seat, and the push block is provided with a guide groove for guiding the push block to slide obliquely relative to the lower die seat A protrusion adapted to the guide groove, a second sliding seat is provided between the upper mold seat and the first abutment seat, the second sliding seat is vertically slidably arranged on the upper mold seat and a third spring is provided between the two, the two ends of the third spring respectively abut on the second sliding seat and the upper mold seat, a plurality of second abutment blocks corresponding to the first abutment blocks are provided on the second sliding seat, the second abutment blocks and the inner ends of the corresponding folding edges are on the same vertical straight line, a first through hole for the second abutment block to pass through is provided on the first abutment seat, the bottom surface of the first abutment seat is lower than the bottom surface of the second abutment block, and the thickness of the push block is greater than the height difference between the bottom surfaces of the first abutment seat and the first abutment block.
[0010] As a further improvement of the above technical solution, a guide column is provided between adjacent first abutment blocks, and the guide column is detachably mounted on the lower mold base. A second through hole for the guide column to pass through is provided on the first abutment base and the second sliding base at positions relative to the guide column.
[0011] As a further improvement of the above technical solution, the hot pressing unit includes a plurality of electric heating tubes, which are detachably mounted on the lower mold base.
[0012] Compared with the prior art, the utility model has the following advantages and effects:
[0013] (1) The utility model realizes the folding of the folded edge of the coated paper sheet by means of the first folding mechanism and the second folding mechanism, and fixes the folded edge by hot pressing after the folding is completed, so that when the paper box is formed, the folded edge parts are connected to form the edge of the paper box, thereby improving the structural strength of the edge of the paper box, reducing the risk of the edge collapsing under pressure during use of the paper box, especially when the box cover is matched, which can effectively improve the stability of the edge during use and prevent deformation, and at the same time effectively improve the overall pressure resistance of the box body.
[0014] (2) The double-folding forming equipment in the present invention only folds the folded edge of the laminated paper sheet, so that the equipment can be used as a paper processing module before the laminated paper sheet is pressed, so that it can be applied to the corresponding paper box forming assembly line equipment to improve the edge structure strength of the formed paper box, thereby ensuring the utilization rate of the existing paper box forming assembly line equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a paper box double-folding forming device of the utility model.
[0016] Figure 2 It is a partial structural schematic enlarged diagram of the paper box double-folding forming equipment of the utility model.
[0017] Figure 3 yes Figure 2 A schematic cross-sectional view of the structure of a local portion of the upper die base is shown in FIG.
[0018] Figure 4 yes Figure 2 A schematic cross-sectional view of the structure of a local portion of the lower die base is shown in FIG.
[0019] Figure 5 yes Figure 4 A schematic cross-sectional view of the structure of a local portion of the lower die base is shown in FIG.
[0020] Figure 6 It is a structural schematic diagram of the laminated paper sheet in the utility model in an unfolded state.
[0021] Figure 7 It is a structural schematic diagram of a paper box formed by a laminated paper sheet in the utility model.
[0022] Among them, the first folding mechanism 1, the upper die seat 11, the lower die seat 12, the first linear drive device 13, the first abutment seat 14, the second abutment seat 15, the first spring 16, the first abutment block 17, the second folding mechanism 2, the first sliding seat 21, the second spring 22, the push block 23, the second linear drive device 24, the arc surface 25, the guide groove 26, the protrusion 27, the hot pressing unit 3, the second sliding seat 41, the third spring 42, the second abutment block 43, the first through hole 44, the guide column 51, the second through hole 52, the machine body 6, the folding part 71, the folding part 72, and the indentation line 73. DETAILED DESCRIPTION
[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.
[0024] See also Figure 1-Figure 7 The double-folding forming equipment for a paper box in this embodiment includes a first folding mechanism 1 and a second folding mechanism 2. The first folding mechanism 1 is used to clamp and convey the laminated paper sheet in the vertical direction, and make the folded portion of the laminated paper sheet fold upward relative to the folding portion. The second folding mechanism 2 is arranged around the first folding mechanism 1. The second folding mechanism 2 is used to push the folded folded portion upward in the horizontal direction, and the folded folded portion is hot-pressed and bonded by a hot-pressing unit 3.
[0025] The first folding mechanism 1 includes an upper die seat 11 and a lower die seat 12. The upper die seat 11 is located directly above the lower die seat 12 and is vertically slidably arranged on the lower die seat 12. A first linear drive device 13 for driving the upper die seat 11 to move relative to the lower die seat 12 is installed on the lower die seat 12. The lower die seat 12 is detachably installed on the machine body. The upper die seat 11 is provided with a first abutment seat 14 for abutting against the coated paper sheet. The first abutment seat 14 is located directly below the upper die seat 11. A first abutment seat 14 for abutting against the coated paper sheet is vertically slidably arranged on the lower die seat 12. The second abutment seat 15 is arranged directly below the first abutment seat 14 and a first spring 16 is arranged between the second abutment seat 15 and the lower die seat 12. The two ends of the first spring 16 abut against the second abutment seat 15 and the lower die seat 12 respectively. The lower die seat 12 is provided with a plurality of first abutment blocks 17 corresponding to the folding portions one by one. Each first abutment block 17 is arranged around the second abutment seat 15 and the first abutment block 17 and the outer end of the corresponding folding portion are on the same vertical straight line. The top surface of the second abutment seat 15 is higher than the top surface of the first abutment block 17 (such as Figure 2-Figure 4 ).
[0026] The second folding mechanism 2 includes a plurality of first sliding seats 21 corresponding to the first abutting blocks 17 one by one, the first sliding seats 21 are vertically slidably arranged on the lower die seat 12, a second spring 22 is arranged between the first sliding seat 21 and the lower die seat 12, the two ends of the second spring 22 are respectively abutted against the first sliding seat 21 and the lower die seat 12, a push block 23 for pushing the folding portion to be folded is horizontally slidably arranged on the first sliding seat 21, and a second linear drive device 24 for driving the push block 23 to move relative to the first sliding seat 21 is provided, the bottom end of the inner end of the push block 23 is in an arc shape 25, a guide groove 26 for guiding the push block 23 to slide obliquely relative to the lower die seat 12 is provided on the lower die seat 12, and a convex groove 26 adapted to the guide groove 26 is provided on the push block 23 27, a second sliding seat 41 is provided between the upper die seat 11 and the first abutting seat 14, the second sliding seat 41 is vertically slidably arranged on the upper die seat 11 and a third spring 42 is provided between the two, the two ends of the third spring 42 respectively abut on the second sliding seat 41 and the upper die seat 11, a plurality of second abutting blocks 43 corresponding to the first abutting blocks 17 are provided on the second sliding seat 41, the second abutting blocks 43 and the inner ends of the corresponding folding portions are on the same vertical straight line, a first through hole 44 for the second abutting blocks 43 to pass through is provided on the first abutting seat 14, the bottom surface of the first abutting seat 14 is lower than the bottom surface of the second abutting block 43, and the thickness of the push block 23 is greater than the height difference between the bottom surfaces of the first abutting seat 14 and the first abutting block 17 (such as Figure 4 , Figure 5 ).
[0027] During the folding operation, the upper mold base 11 is driven by the first linear drive device 13 to move vertically downward relative to the lower mold base 12, so that the first abutment seat 14 on the upper mold base 11 abuts the coated paper sheet between the first abutment seat 14 and the second abutment seat 15 on the lower mold base 12, and pushes the second abutment seat 15 to move downward together. At this time, the first spring 16 is compressed. In the process of the upper mold base 11 and the lower mold base 12 moving downward together, the outer end of the folded edge portion on the coated paper sheet is abutted against the first abutting block 17, and because the two are on the same vertical line, the folded edge portion is folded upward relative to the folding portion, and when the upper mold base 11 and the lower mold base 12 continue to move downward together, the second abutting block 43 abuts against the folded edge portion, so that in the process of the first abutting block 17 and the second abutting block 43 overlapping in the horizontal direction, the outer end of the folded edge portion is folded upward relative to its inner end under the limiting action of the first abutting block 17 and the second abutting block 43 (that is, a part of the folded edge portion is folded between the first abutting block 17 and the second abutting block 43).
[0028] Subsequently, the upper die holder 11 is driven to reset by the first linear drive device 13, and the lower die holder 12 is reset under the force of the second spring 22 to restore the original state, so that the coated paper sheet is always sandwiched between the first abutting seat 14 and the second abutting seat 15. In this process, the push block 23 is moved by the second linear drive device 24 and contacts the first abutting block 17, so that the push block 23 is located on the moving track of the outer end of the folding part, so that when the outer end of the folding part abuts against the push block 23, the folding part is folded downward relative to the folding part under the restriction of the push block 23. Due to the matching arrangement of the guide groove 26 on the lower die base 12 and the protrusion 27 on the push block 23, when the second linear drive device 24 continues to drive the push block 23 to move, the push block 23 moves obliquely downward relative to the lower die base 12, and the arc surface 25 on the bottom end of the inner end of the push block 23 is set, so that the push block 23 abuts and guides the folding edge portion to fold in half, and in this process, the push block 23 pushes the first sliding seat 21 to move vertically downward relative to the lower die base 12 under the movement restriction of the lower die base 12, the second spring 22 is compressed, and the upper die base 11 and the lower die base 12 are synchronously vertically moved. The push block 23 moves upward so that it can extend between the second abutting block 43 and the second abutting seat 15. At this time, the folded edge portion is clamped between the push block 23 and the second abutting seat 15, and the push block 23 pushes the second sliding seat 41 to move vertically upward through the second abutting block 43. The third spring 42 is compressed, so that the second abutting block 43 abuts on the push block 23 under the action of the third spring 42, thereby improving the clamping strength of the folded edge portion by the push block 23 and the second abutting seat 15, thereby ensuring the subsequent operation effect of hot pressing and bonding the folded edge portion.
[0029] In this embodiment, the hot pressing unit 3 includes a plurality of electric heating tubes, which are detachably mounted on the lower die base 12 .
[0030] See also Figure 2 , Figure 4 A guide column 51 is provided between adjacent first abutting blocks 17 , and the guide column 51 is detachably mounted on the lower mold base 12 . A second through hole 52 for the guide column 51 to pass through is provided on the first abutting base 14 and the second sliding base 41 at positions relative to the guide column 51 .
[0031] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.
Claims
1. Carton double folding forming equipment, characterized in that: include: A first folding mechanism is used to clamp and convey the laminated paper sheet in the vertical direction, and to fold the folded edge portion of the laminated paper sheet upward relative to the folding portion; The second folding mechanism is arranged around the first folding mechanism. The second folding mechanism is used to push the folded folded part to fold upward in the horizontal direction, and the folded folded part is heat-pressed and bonded by the heat-pressing unit.
2. The double-folding forming equipment for paper boxes according to claim 1, characterized in that: The first folding mechanism comprises an upper mold base and a lower mold base, the upper mold base is located directly above the lower mold base and is vertically slidably arranged on the lower mold base, and the lower mold base is equipped with a first linear driving device for driving the upper mold base to move relative to the lower mold base, and the lower mold base is detachably mounted on the machine body, the upper mold base is provided with a first supporting seat for supporting the coated paper sheet, the first supporting seat is located directly below the upper mold base, and the lower mold base is vertically slidably arranged with a second supporting seat for placing the coated paper sheet, the second supporting seat is located directly below the first supporting seat and a first spring is provided between it and the lower mold base, the two ends of the first spring respectively support the second supporting seat and the lower mold base, and the lower mold base is provided with a plurality of first supporting blocks corresponding to the folding parts one by one, each first supporting block is arranged around the second supporting seat and the outer end of the first supporting block and the corresponding folding part are on the same vertical straight line, and the top surface of the second supporting seat is higher than the top surface of the first supporting block.
3. The double-folding forming device for a paper box according to claim 2, characterized in that: The second folding mechanism includes a plurality of first sliding seats corresponding to the first abutting blocks one by one, the first sliding seats are vertically slidably arranged on the lower die seat, a second spring is arranged between the first sliding seat and the lower die seat, the two ends of the second spring respectively abut against the first sliding seat and the lower die seat, a push block for pushing the folding portion to be folded in half is horizontally slidably arranged on the first sliding seat, and a second linear drive device for driving the push block to move relative to the first sliding seat is arranged, the bottom end of the inner end of the push block is in an arc shape, a guide groove for guiding the push block to slide obliquely relative to the lower die seat is provided on the lower die seat, and a protrusion adapted to the guide groove is provided on the push block, A second sliding seat is provided between the upper mold seat and the first abutment seat, the second sliding seat is vertically slidably arranged on the upper mold seat and a third spring is provided between the two, the two ends of the third spring respectively abut against the second sliding seat and the upper mold seat, the second sliding seat is provided with a plurality of second abutment blocks corresponding to the first abutment blocks one by one, the second abutment blocks and the inner ends of the corresponding folding edges are on the same vertical straight line, the first abutment seat is provided with a first through hole for the second abutment block to pass through, the bottom surface of the first abutment seat is lower than the bottom surface of the second abutment block, and the thickness of the push block is greater than the height difference between the bottom surfaces of the first abutment seat and the first abutment block.
4. The double-folding forming device for a paper box according to claim 3, characterized in that: A guide column is provided between adjacent first abutting blocks, and the guide column is detachably mounted on the lower die seat. Second through holes for the guide column to pass through are provided on the first abutting seat and the second sliding seat at positions relative to the guide column.
5. The double-folding forming equipment for paper boxes according to claim 2, characterized in that: The hot pressing unit comprises a plurality of electric heating tubes, which are detachably mounted on the lower die base.