A carton folding and forming apparatus

Abstract

A carton folding forming device, the carton comprises a center part, a pair of first folding edges on the four sides of the center part, a pair of second folding edges, the first folding edge is provided with a folding lug part; the device comprises a base, an inner mold piece, an expansion platform, a first folding wing mechanism, a second folding wing mechanism, the base is provided with a mounting end face, a plurality of first mounting screw holes are arranged at intervals on the mounting end face, the expansion platform comprises a pair of symmetrically spliced L-shaped supporting plates, the L-shaped supporting plate comprises a panel part and an extension arm part, the panel part is provided with a second mounting screw hole and is fixed with the first mounting screw hole through a screw; through the structural design of the expansion platform, the relative position on the base can be adjusted corresponding to the size of the center part of the carton, the long and wide corresponding support is formed, and the first folding wing mechanism, the second folding wing mechanism and the pair of supporting plates are associated and installed, so that the size of the supporting plate is corresponding, and the position of the folding wing mechanism can be adjusted quickly.

Description

Technical Field

[0001] This utility model relates to the field of packaging paper box production technology, specifically to a paper box folding and forming device. Background Technology

[0002] A square cardboard box typically consists of a square box body and a square lid. The square box body includes a bottom and four side walls, with the bottom perpendicularly connected to each of the four side walls. The manufacturing process for existing square cardboard box components is as follows: First, cardboard is punched into a near-cross shape (called "near-cross" because it resembles a bold "+", essentially formed by cutting four identical square corners from a rectangular cardboard piece); Second, the near-cross-shaped cardboard is placed between an inner mold and an outer mold (the outer mold has a cavity, the shape of which matches the shape of the square cardboard box component, open at the top and sealed at the bottom, with the depth of the outer mold cavity equal to the height of the inner mold), so that the inner mold is inserted downwards into the outer mold cavity, the depth of which is generally equal to the height of the square cardboard box component. After the inner and outer molds are punched, the four edges of the near-cross-shaped cardboard are bent at 90°, thus obtaining the square cardboard box. The equipment responsible for performing the second step is called the stamping and forming equipment for the square cardboard box component. The blanks of the square cardboard box components are then sent to other downstream equipment for further processing.

[0003] The problem with existing technology is that different batches of cardboard boxes have size differences. Existing cardboard box folding and forming equipment requires adjustments and reassemblies of numerous components to accommodate these size variations, resulting in high labor and time costs. Therefore, simplifying and integrating the cardboard box folding and forming equipment to enable rapid adaptation to different cardboard box sizes will optimize the production process, reduce downtime for setup, and thus improve production efficiency and flexibility. Utility Model Content

[0004] In order to overcome the shortcomings of the above-mentioned technology, this utility model provides a paper box folding and forming device.

[0005] The technical solution of this utility model is as follows: a paper box folding and forming device, wherein the paper box includes a central part, a pair of first folded edges located on four sides of the central part, and a pair of second folded edges, wherein the first folded edges are provided with folded ears; the device includes a base, an inner mold, an expansion platform, a first folding wing mechanism, and a second folding wing mechanism, wherein the base is provided with a mounting end face, wherein the mounting end face is provided with a plurality of first mounting screw holes arranged at intervals, and the expansion platform includes a pair of symmetrically spliced ​​L-shaped support plates, wherein the L-shaped support plate includes a panel part and an extension arm part, wherein the panel part is provided with second mounting screw holes and is fixed to the first mounting screw holes by screws; The pair of symmetrically spliced ​​L-shaped support plates correspond to the center size of the paper box and are adjusted to the position on the mounting end face. The size of the inner mold corresponds to the center size of the paper box and is clamped and fixed to the center of the paper box with the pair of support plates. The inner mold includes a first side corresponding to the first fold and a second side corresponding to the second fold. The first folding mechanism is located on the side of the extended arm, driving the first folding edge to fold towards the inner mold part and fit against the first side of the inner mold part; The second folding wing mechanism is signal-linked with the first folding wing mechanism. After the first folding edge is folded, the second folding edge is driven to flip towards the inner mold part and fit against the second side of the inner mold part.

[0006] Further features of this utility model: The first folding wing mechanism includes a first driving cylinder, a first folding edge push block, a pair of sliding seats, a pair of folding lugs, a pair of drive gears, and a pair of drive motors. A first mounting seat is provided vertically below the extended arm. The base is provided with a clearance groove corresponding to the first mounting seat. The first driving cylinder is fixed to the first mounting seat. The piston rod of the first driving cylinder is linked and cooperates with the first folding edge push block. The length of the first folding edge pusher corresponds to the first folding edge, and the first folding edge is pushed vertically downward to fit against the first side of the inner mold part. A sliding groove is provided on the end face of the first folding edge pusher away from the first side along the length direction of the first folding edge. The pair of sliding seats are symmetrically arranged in the sliding groove to form a lockable sliding fit. The sliding seat has a hinge seat on the side facing the first folded edge ear. The pair of drive gears and the pair of drive motors are respectively arranged on the pair of sliding seats. The pair of folding lugs includes a flap portion and a hinge portion. The hinge portion is hinged to the hinge seat and is coaxially provided with a driven gear. The driving gear meshes with the driven gear and is linked to the drive motor for rotation. The forward and reverse rotation of the driving gear controls the flip angle of the flap portion around the hinge seat. The flap portion pushes the folding lugs to fold and fit against the second side of the inner mold.

[0007] Further features of this invention: The second folding wing mechanism includes a second driving cylinder and a second folding edge push block. A second mounting seat is provided vertically below the panel. The base is provided with a clearance groove corresponding to the second mounting seat. The second driving cylinder is fixed to the second mounting seat. The piston rod of the second driving cylinder is linked with the first folding edge push block. The length of the second folding edge push block corresponds to the second folding edge, and the second folding edge is pushed vertically below the second folding edge to fit against the second side of the inner mold part.

[0008] A further feature of this invention is that the base is provided with a negative pressure chamber communicating with each of the first mounting screw holes, and the negative pressure chamber is equipped with an exhaust fan. The receiving plate is provided with a plurality of second mounting screw holes corresponding to the positions of each of the first mounting screw holes. The plurality of second mounting screw holes are communicating with each of the first mounting screw holes, and the negative pressure adsorbs the center of the paper box.

[0009] A further feature of this invention is that the device also includes a glue spraying head that is signal-linked with the first folding wing mechanism. The glue spraying head is positioned at the location where the ear part is attached to the second side of the inner mold part. After the ear part is flipped over, glue is sprayed onto the end face of the ear part facing the second folding edge.

[0010] The beneficial effects of this utility model are that, through the structural design of the extended platform, the relative position on the base can be adjusted to correspond to the central size of the cardboard box, forming a support with corresponding length and width. At the same time, the first folding wing mechanism, the second folding wing mechanism and a pair of receiving plates are connected and installed together, thereby ensuring that the size of the receiving plates corresponds and that the position of the folding wing mechanism can be quickly adjusted to ensure that the folding wing mechanism can accurately fold the edge of the cardboard box.

[0011] Meanwhile, through the structural design of the first folding wing mechanism, it can adapt to the size changes of the first folded edge. By unlocking with screws and fixing the position of the sliding seat in the sliding groove, the position of the folding ear can be adjusted, thereby accurately flipping the folded ear. The folding edge push block can be disassembled and replaced according to the size of the folded edge.

[0012] By setting several first mounting screw holes and second mounting screw holes connected to the negative pressure chamber, it can not only serve as a way to fix the receiving plate, but also perform negative pressure adsorption on the center of the paper box, further fixing the position of the paper box on the receiving plate, and preventing the paper box from shifting during the pressing of the inner mold, which would lead to incorrect folding position. Attached Figure Description

[0013] Figure 1 The structure of this utility model embodiment Figure 1 ; Figure 2 The structure of this utility model embodiment Figure 2 ; Figure 3 The structure of this utility model embodiment Figure 3 ; Figure 4 The structure of this utility model embodiment Figure 4 .

[0014] Figure 5 The structure of this utility model embodiment Figure 5 . The components include: a paper box 1, a center part 11, a first folded edge 12, a second folded edge 13, a folded ear part 14, a base 2, an inner mold part 3, a first side part 31, a second side part 32, a first folding wing mechanism 4, a drive cylinder 41, a first folding edge push block 42, a sliding groove 421, a sliding seat 43, a hinge seat 431, a folded ear part 44, a flip plate part 441, a hinge part 442, a driven gear 443, a drive gear 45, a drive motor 46, a second folding wing mechanism 5, a second drive cylinder 51, a second folding edge push block 52, a receiving plate 6, a panel part 61, a second mounting seat 611, an extension arm part 62, a first mounting seat 621, and a second mounting screw hole 63. To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0015] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0016] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-5 As shown, a folding and forming device for a paper box 1 is disclosed. The paper box 1 includes a central part 11, a pair of first folded edges 12 and a pair of second folded edges 13 located on the four sides of the central part 11. The first folded edges 12 are provided with folded ears 14. The device includes a base 2, an inner mold 3, an expansion platform, a first folding wing mechanism 4 and a second folding wing mechanism 5. The base 2 is provided with a mounting end face, and a plurality of first mounting screw holes 21 are arranged at intervals on the mounting end face. The expansion platform includes a pair of symmetrically spliced ​​L-shaped support plates 6. The L-shaped support plate 6 includes a panel part 61 and an extension arm part 62. The panel part 61 is provided with second mounting screw holes 63 and is fixed to the first mounting screw holes 21 by screws. The pair of symmetrically spliced ​​L-shaped support plates 6 correspond to the size of the center part 11 of the paper box 1 and are adjusted to the position on the mounting end face. The size of the inner mold 3 corresponds to the size of the center part 11 of the paper box 1 and is clamped and fixed to the center part 11 of the paper box 1 with the pair of support plates 6. The inner mold 3 includes a first side 31 corresponding to the first fold 12 and a second side 32 corresponding to the second fold 13. The first folding wing mechanism 4 is disposed on the side of the extension arm 62, driving the first folding edge 12 to fold towards the inner mold 3 and fit against the first side 31 of the inner mold 3; The second folding wing mechanism 5 is signal-linked with the first folding wing mechanism 4. After the first folding edge 12 is folded, the second folding edge 13 is driven to flip towards the inner mold 3 and fit against the second side 32 of the inner mold 3.

[0017] The first folding wing mechanism 4 includes a first driving cylinder 41, a first folding edge push block 42, a pair of sliding seats 43, a pair of folding lugs 44, a pair of drive gears 45, and a pair of drive motors 46. A first mounting seat 621 is provided vertically below the extended arm 62. The base 2 is provided with a clearance groove corresponding to the first mounting seat 621. The first driving cylinder 41 is fixed to the first mounting seat 621. The piston rod of the first driving cylinder 41 is linked and cooperates with the first folding edge push block 42. The length of the first folding edge pusher 42 corresponds to the first folding edge 12, and the first folding edge 12 is pushed vertically downward to fit against the first side surface 31 of the inner mold 3. At the end face of the first folding edge pusher 42 away from the first side surface 31, a sliding groove 421 is provided along the length direction of the first folding edge 12. The pair of sliding seats 43 are symmetrically arranged in the sliding groove 421 to form a lockable and fixed sliding fit. The sliding seat 43 has a hinge seat 431 on the side facing the first folded edge 12 folded ear 14. The pair of driving gears 45 and the pair of drive motors 46 are respectively arranged on the pair of sliding seats 43. The pair of folding lugs 44 include a flap portion 441 and a hinge portion 442. The hinge portion 442 is hinged to the hinge seat 431 and is coaxially provided with a driven gear 443. The driving gear 45 meshes with the driven gear 443 and is linked to the drive motor 46 for rotation. The forward and reverse rotation of the driving gear 45 controls the flipping angle of the flap portion 441 around the hinge seat 431. The flap portion 441 pushes the folding lug 14 to fold and fit against the second side of the inner mold 3.

[0018] The second folding mechanism 5 includes a second driving cylinder 51 and a second folding push block 52. A second mounting base 611 is provided vertically below the panel 61. The base 2 is provided with a clearance groove corresponding to the second mounting base 611. The second driving cylinder 51 is fixed to the second mounting base 611. The piston rod of the second driving cylinder 51 is linked with the first folding push block 42. The length of the second folding push block 52 corresponds to the second folding edge 13, and the second folding edge 13 is pushed vertically below the second folding edge 13 to fit against the second side surface 32 of the inner mold part 3.

[0019] The base 2 is provided with a negative pressure chamber that communicates with each of the first mounting screw holes 21. The negative pressure chamber is equipped with an exhaust fan. The receiving plate 6 is provided with a plurality of second mounting screw holes 63 corresponding to the positions of each of the first mounting screw holes 21. The plurality of second mounting screw holes 63 communicate with each of the first mounting screw holes 21. The negative pressure adsorption paper box 1 is located at its center 11.

[0020] The device also includes a glue spraying head that is signal-linked with the first folding mechanism 4. The glue spraying head is positioned at the location where the ear part 14 is attached to the second side surface 32 of the inner mold part 3. After the ear part 14 is flipped, glue is sprayed onto the end face of the ear part 14 facing the second folded edge 13.

[0021] By expanding the platform's structural design, the relative position on the base 2 can be adjusted to correspond to the dimensions of the center part 11 of the cardboard box 1, forming a support with corresponding length and width. At the same time, the first folding wing mechanism 4, the second folding wing mechanism 5, and a pair of receiving plates 6 are connected and installed together, thereby ensuring that the dimensions of the receiving plates 6 are corresponding and that the position of the folding wing mechanism can be quickly adjusted to ensure that the folding wing mechanism can accurately fold the edges of the cardboard box 1.

[0022] Meanwhile, through the structural design of the first folding wing mechanism 4, it can adapt to the size change of the first folded edge 12. By unlocking with screws and fixing the position of the sliding seat 43 in the sliding groove 421, the position of the folded ear 44 can be adjusted, thereby accurately flipping the folded ear 14. The folded edge push block can be disassembled and replaced according to the size of the folded edge.

[0023] By setting several first mounting screw holes 21 and second mounting screw holes 63 connected to the negative pressure cavity, it can be used as a way to fix the receiving plate 6, while also applying negative pressure to the center part 11 of the paper box 1, further fixing the position of the paper box 1 on the receiving plate 6, and preventing the inner mold part 3 from pushing the paper box 1 to move during the pressing process, which would cause the folding position to be incorrect.

[0024] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the protection scope of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this application.

Claims

1. A paper box folding and forming device, characterized in that: The cardboard box includes a central portion, a pair of first folded edges on the four sides of the central portion, and a pair of second folded edges. The first folded edges are provided with folded ears. The device includes a base, an inner mold, an expansion platform, a first folding wing mechanism, and a second folding wing mechanism. The base is provided with a mounting end face, and the mounting end face is provided with a plurality of first mounting screw holes arranged at intervals. The expansion platform includes a pair of symmetrically spliced ​​L-shaped support plates. The L-shaped support plate includes a panel portion and an extension arm portion. The panel portion is provided with second mounting screw holes and is fixed to the first mounting screw holes by screws. The pair of symmetrically spliced ​​L-shaped support plates correspond to the center size of the paper box and are adjusted to the position on the mounting end face. The size of the inner mold corresponds to the center size of the paper box and is clamped and fixed to the center of the paper box with the pair of support plates. The inner mold includes a first side corresponding to the first fold and a second side corresponding to the second fold. The first folding mechanism is located on the side of the extended arm, driving the first folding edge to fold towards the inner mold part and fit against the first side of the inner mold part; The second folding wing mechanism is signal-linked with the first folding wing mechanism. After the first folding edge is folded, the second folding edge is driven to flip towards the inner mold part and fit against the second side of the inner mold part.

2. The paper box folding and forming device according to claim 1, characterized in that: The first folding wing mechanism includes a first driving cylinder, a first folding edge push block, a pair of sliding seats, a pair of folding lugs, a pair of drive gears, and a pair of drive motors. A first mounting seat is provided vertically below the extended arm. The base is provided with a clearance groove corresponding to the first mounting seat. The first driving cylinder is fixed to the first mounting seat. The piston rod of the first driving cylinder is linked with the first folding edge push block. The length of the first folding edge pusher corresponds to the first folding edge, and the first folding edge is pushed vertically downward from the first folding edge to fit against the first side of the inner mold part. At the end face of the first folding edge pusher away from the first side, a sliding groove is provided along the length direction of the first folding edge. The pair of sliding seats are symmetrically arranged in the sliding groove to form a lockable sliding fit. The sliding seat has a hinge seat on the side facing the first folded edge ear. The pair of drive gears and the pair of drive motors are respectively arranged on the pair of sliding seats. The pair of folding lugs includes a flap portion and a hinge portion. The hinge portion is hinged to the hinge seat and is coaxially provided with a driven gear. The driving gear meshes with the driven gear and is linked to the drive motor for rotation. The forward and reverse rotation of the driving gear controls the flip angle of the flap portion around the hinge seat. The flap portion pushes the folding lugs to fold and fit against the second side of the inner mold.

3. The paper box folding and forming device according to claim 2, characterized in that: The second folding mechanism includes a second driving cylinder and a second folding edge push block. A second mounting seat is provided vertically below the panel. The base is provided with a clearance groove corresponding to the second mounting seat. The second driving cylinder is fixed to the second mounting seat. The piston rod of the second driving cylinder is linked with the first folding edge push block. The length of the second folding edge push block corresponds to the second folding edge, and the second folding edge is pushed vertically below the second folding edge to fit against the second side of the inner mold part.

4. The paper box folding and forming device according to claim 3, characterized in that: The base is provided with a negative pressure chamber that communicates with each of the first mounting screw holes. The negative pressure chamber is equipped with an exhaust fan. The receiving plate is provided with a plurality of second mounting screw holes corresponding to the positions of each of the first mounting screw holes. The plurality of second mounting screw holes communicate with each of the first mounting screw holes and the negative pressure adsorbs the center of the paper box.

5. A paper box folding and forming device according to claim 4, characterized in that: The device also includes a glue spraying head that is signal-linked with the first folding mechanism. The glue spraying head is positioned facing the second side of the inner mold part of the folding ear. After the folding ear is flipped, glue is sprayed onto the end face of the folding ear facing the second folding edge.

Images