Automatic corrugated paper forming mechanism
By designing the automatic pit paper forming mechanism, using the combination of fixed modules and bending modules, the problems of low folding efficiency and difficult to guarantee quality are solved, and an efficient and stable pit paper forming process is achieved.
Patent Information
- Application Number
- CN202421730728.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the prior art, pit paper usually relies on manual operations during folding and forming, resulting in difficult to ensure product quality and low working efficiency.
An automatic pit paper forming mechanism is designed, including pit paper fixing module and bending module. The bending module can automatically fold and fold the pit paper through the folding mechanism and the flip mechanism to ensure that at least two bends are completed.
The automated pit paper forming process is realized, which improves work efficiency and ensures the stability of product quality.
Smart Images
Figure CN222875452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corrugated paper processing, in particular to an automatic corrugated paper forming mechanism. Background Art
[0002] Corrugated paper is widely used in the field of paper packaging. Corrugated paper usually needs to be folded and formed during the processing. At present, when folding corrugated paper into shape, manual folding is usually adopted, which makes it difficult to ensure product quality and has low work efficiency. Utility Model Content
[0003] The utility model aims to provide an automatic corrugated paper forming mechanism, which can automatically fold and turn over the corrugated paper and has high working efficiency.
[0004] In order to solve the above technical problems, the utility model adopts the following solutions:
[0005] An automatic corrugated paper forming mechanism includes a corrugated paper fixing module for fixing corrugated paper and a bending module for bending the side of the corrugated paper. The bending module includes a folding mechanism for folding the side of the corrugated paper by pushing a pressure plate and a flipping mechanism for flipping the folding mechanism and the corrugated paper fixed on the folding mechanism. The folding mechanism is connected to the flipping mechanism, and the fixed module is arranged near the folding mechanism. Its function is that the corrugated paper can be fixed by setting the corrugated paper fixing module; the side of the corrugated paper can be folded by setting the folding mechanism; the side of the corrugated paper after folding can be flipped and bent again by setting the flipping mechanism, so that the corrugated paper can be automatically bent at least twice, with high work efficiency and product quality.
[0006] Furthermore, the folding mechanism includes a mold core and an upward folding mechanism, the mold core is connected to a horizontal driving device for driving the mold core to move along the length direction of the mold core to the middle of the side of the corrugated paper on the corrugated paper fixing module, the upward folding mechanism is adjacent to the side of the mold core facing away from the center of the corrugated paper, and the upward folding mechanism is connected to a vertical driving device for driving the upward folding mechanism to move along the height direction of the mold core. The mold core is in the shape of a rectangular parallelepiped, and a slope with a thickness gradually increasing from bottom to top is provided on the side of the mold core facing away from the upward folding mechanism. Its function is that, through the arrangement of the mold core and the horizontal driving device, after the corrugated paper is fixed by the corrugated paper fixing module, the mold core can be moved to the junction of the side of the cross-shaped corrugated paper and the center of the corrugated paper, and used as the inner core for turning over the side of the corrugated paper; through the arrangement of the upward folding mechanism, the side of the corrugated paper can be pushed from bottom to top to bend upward with the bottom edge of the mold core adjacent to the upward folding mechanism as the crease.
[0007] Furthermore, the upper folding mechanism includes a transverse folding groove arranged toward the mold core, the height of the transverse folding groove is greater than the height of the mold core, and the upper folding mechanism is connected to a transverse folding driving device for driving the transverse folding groove to move along the thickness direction of the mold core. The transverse folding groove is C-shaped. Its function is that, through the setting of the transverse folding groove, the top of the side edge of the corrugated paper that has been turned up can be pushed to bend horizontally with the top edge of the mold core adjacent to the transverse folding groove as the crease.
[0008] Furthermore, the upper folding mechanism includes a lower folding piece, and the lower folding piece is connected to a lower folding driving device for driving the lower folding piece to move along the height direction of the mold core. Its function is that, through the arrangement of the lower folding piece, the side edge of the corrugated paper that has been bent transversely can be pushed to bend downward with the top edge of the mold core away from the transverse folding groove as the folding line.
[0009] Furthermore, the lower folding piece is arranged above the transverse folding groove, a placement groove for placing the bottom of the lower folding piece is arranged above the transverse folding groove, and the lower folding piece is connected to a retracting driving device for moving the lower folding piece from the outside of the top of the placement groove to the inside of the placement groove along the thickness direction of the mold core. Its function is that, through the arrangement of the retracting driving device, the lower folding piece can be retracted into the placement groove when the folding operation is not performed.
[0010] Furthermore, the bending module also includes a main mounting plate, which is connected to a vertical driving device, a support plate is connected to the output shaft of the vertical driving device, a transverse folding driving device is connected to the support plate, a transverse moving plate is connected to the output shaft of the transverse folding driving device, a transverse folding groove is arranged on the transverse moving plate, a retraction driving device is connected to the transverse moving plate, a retraction plate is connected to the output shaft of the retraction driving device, a lower folding plate arranged vertically with the retraction plate is connected to the retraction plate, a lower folding driving device is connected to the lower folding plate, a connecting plate is connected to the output shaft of the lower folding driving device, and a lower folding plate is connected to the connecting plate.
[0011] Furthermore, the main mounting plate is vertically arranged with the support plate, and a sliding plate vertically arranged with the support plate is connected to the support plate. Slide rail and slider mechanisms are provided between the main mounting plate and the sliding plate, between the support plate and the transverse plate, between the transverse plate and the retraction plate, and between the retraction plate and the lower folding plate. The extension direction of the slide rail between the main mounting plate and the sliding plate is the same as the direction in which the vertical driving device drives the support plate to move, the extension direction of the slide rail between the support plate and the transverse plate is the same as the direction in which the transverse folding driving device drives the transverse plate to move, the extension direction of the slide rail between the transverse plate and the retraction plate is the same as the direction in which the retraction driving device drives the retraction plate to move, and the extension direction of the slide rail between the retraction plate and the lower folding plate is the same as the direction in which the lower folding driving device drives the connecting plate to move.
[0012] Furthermore, the flipping mechanism includes a U-shaped frame, and a rotating plate is respectively provided in the opposite ends of the U-shaped frame, and the rotating plate is connected to a motor. With the length direction of the mold core as the left and right direction, the left and right ends of the main mounting plate are respectively connected to a rotating plate, and the main mounting plate is provided with two horizontal plates symmetrically arranged on the left and right sides of the upper folding mechanism, and the horizontal driving device is arranged on the horizontal plate. The horizontal plate and the upper folding mechanism are both arranged on the side of the mounting plate facing the pit paper fixing module. The rotating shaft around which the rotating plate rotates is located near the bottom end of the mold core and is parallel to the length direction of the model, so that when the rotating plate drives the main mounting plate to rotate, the bottom end of the mold core is always maintained in place, even if the mold core rotates around the bottom end of the mold core. Its function is that through the setting of the U-shaped frame, the main mounting plate can be installed in the U-shaped frame.
[0013] Furthermore, the bending module also includes a bottom plate, on which a distance-adjusting driving device is provided for driving the movable frame to move toward the corrugated paper fixing module, and an output shaft of the distance-adjusting driving device is connected to the U-shaped frame. Its function is to adjust the distance between the U-shaped frame and the corrugated paper fixing module through the setting of the distance-adjusting driving device to adapt to corrugated paper of different thicknesses.
[0014] Furthermore, the corrugated paper fixing module includes a first platform, a second platform, and a third platform arranged in sequence from top to bottom, a vacuum suction cup is arranged on the first platform, a lifting device is connected to the second platform, an output shaft of the lifting device is connected to the first platform, and a limiting cylinder is arranged on the third platform, a limiting rod for limiting the angle of the cross-shaped corrugated paper is arranged on the limiting cylinder, and the top height of the limiting rod is higher than the top surface height of the first platform. Its function is to prevent the corrugated paper from being separated from the first platform through the arrangement of the vacuum suction cup; to adjust the height of the first platform according to the thickness of the corrugated paper through the thickness of the lifting device; and to fix the angle of the cross-shaped corrugated paper through the arrangement of the limiting cylinder and the limiting rod to prevent the corrugated paper from rotating.
[0015] The utility model has the beneficial effects:
[0016] 1. The corrugated paper can be fixed by setting the corrugated paper fixing module; the side of the corrugated paper can be folded by setting the folding mechanism; the side of the corrugated paper after folding can be turned over and bent again by setting the flipping mechanism, so that the corrugated paper can be automatically bent at least twice, with high work efficiency and guaranteed product quality;
[0017] 2. Through the arrangement of the mold core and the horizontal driving device, after the corrugated paper is fixed by the corrugated paper fixing module, the mold core can be moved to the junction of the side of the cross-shaped corrugated paper and the center of the corrugated paper, and used as the inner core for turning over the side of the corrugated paper; through the arrangement of the upper folding mechanism, the side of the corrugated paper can be pushed upward from bottom to top, and bend upward with the bottom edge of the mold core close to the upper folding mechanism as the crease;
[0018] 3. Through the setting of the transverse folding groove, the top of the side of the corrugated paper that has been turned upward can be pushed to bend horizontally with the top edge of the mold core adjacent to the transverse folding groove as the crease;
[0019] 4. By setting the lower folding piece, the side edge of the corrugated paper that has been bent transversely can be pushed to bend downward with the top edge of the mold core away from the transverse folding groove as the crease. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of the three-dimensional structure of Example 1;
[0021] Figure 2 It is a schematic diagram of the three-dimensional exploded structure of the bending module;
[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the pit paper fixing module;
[0023] Figure 4 This is a schematic cross-sectional view of the structure of Example 1 when the corrugated paper is about to be folded;
[0024] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;
[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of Example 1 when the corrugated paper is folded.
[0026] Figure numerals: 1. mold core; 2. horizontal drive device; 3. vertical drive device; 4. transverse folding groove; 5. transverse folding drive device; 6. lower folding sheet; 7. lower folding drive device; 8. placement groove; 9. retraction drive device; 10. main mounting plate; 11. support plate; 12. transverse shift plate; 13. retraction plate; 14. connecting plate; 15. sliding plate; 16. U-shaped frame; 17. rotating plate; 18. motor; 19. horizontal plate; 20. bottom plate; 21. distance adjustment drive device; 22. first platform; 23. second platform; 24. vacuum suction cup; 25. lifting device; 26. limit cylinder; 27. limit rod; 28. third platform; 29. upper folding mechanism; 30. corrugated paper fixing module; 31. folding mechanism; 32. bending module. DETAILED DESCRIPTION
[0027] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.
[0028] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] Example 1
[0031] An automatic pit paper forming mechanism, such as Figure 1 As shown, it includes a corrugated paper fixing module 30 for fixing the corrugated paper and a bending module 32 for bending the side of the corrugated paper. The bending module 32 includes a folding mechanism 31 for folding the side of the corrugated paper by pushing the pressing plate and a turning mechanism for turning over the folding mechanism 31 and the corrugated paper fixed on the folding mechanism 31. The folding mechanism 31 is connected to the turning mechanism, and the fixing module is arranged near the folding mechanism 31. Its functions are that the corrugated paper can be fixed by the setting of the corrugated paper fixing module 30; the side of the corrugated paper can be folded by the setting of the folding mechanism 31; and the side of the corrugated paper after folding can be turned over and bent again by the setting of the turning mechanism, so that the corrugated paper can be automatically bent at least twice, with high working efficiency and product quality.
[0032] Specifically, Figure 2As shown, the folding mechanism 31 includes a core 1 and an upper folding mechanism 29. The core 1 is connected to a horizontal driving device 2 for driving the core 1 to move to the middle of the side of the corrugated paper on the corrugated paper fixing module 30 along the length direction of the core 1. The upper folding mechanism 29 is adjacent to the side of the core 1 facing away from the center of the corrugated paper. The upper folding mechanism 29 is connected to a vertical driving device 3 for driving the upper folding mechanism 29 to move along the height direction of the core 1. The core 1 is in the shape of a rectangular parallelepiped. The side of the core 1 facing away from the upper folding mechanism 29 is provided with a slope with a thickness gradually increasing from bottom to top. Its function is that, through the arrangement of the core 1 and the horizontal driving device 2, after the corrugated paper is fixed by the corrugated paper fixing module 30, the core 1 can be moved to the junction of the side of the cross-shaped corrugated paper and the center of the corrugated paper, and used as the inner core for turning over the side of the corrugated paper; through the arrangement of the upper folding mechanism 29, the side of the corrugated paper can be pushed from bottom to top to bend upward with the bottom edge of the core 1 adjacent to the upper folding mechanism 29 as the crease.
[0033] Specifically, Figure 5 As shown, the upper folding mechanism 29 includes a transverse folding groove 4 arranged toward the mold core 1, the height of the transverse folding groove 4 is greater than the height of the mold core 1, and the upper folding mechanism 29 is connected to a transverse folding driving device 5 for driving the transverse folding groove 4 to move along the thickness direction of the mold core 1. The transverse folding groove 4 is in a C shape. Its function is that, through the arrangement of the transverse folding groove 4, the top of the side edge of the corrugated paper that has been turned upward can be pushed to bend horizontally with the top edge of the mold core 1 adjacent to the transverse folding groove 4 as a crease.
[0034] Specifically, Figure 5 As shown, the upper folding mechanism 29 includes a lower folding piece 6, and the lower folding piece 6 is connected to a lower folding driving device 7 for driving the lower folding piece 6 to move along the height direction of the mold core 1. Its function is that, through the arrangement of the lower folding piece 6, the side edge of the corrugated paper that has been bent transversely can be pushed to bend downward with the top edge of the mold core 1 away from the transverse folding groove 4 as the folding line.
[0035] Specifically, Figure 2 As shown, the lower folding piece 6 is arranged above the transverse folding groove 4, and a placement groove 8 for placing the bottom of the lower folding piece 6 is arranged above the transverse folding groove 4. The lower folding piece 6 is connected to a retracting driving device 9 for moving the lower folding piece 6 from the top of the placement groove 8 outside the thickness direction of the mold core 1 to the placement groove 8. Its function is that, through the setting of the retracting driving device 9, the lower folding piece 6 can be retracted into the placement groove 8 when the folding operation is not performed.
[0036] Specifically, Figure 2As shown, the bending module 32 also includes a main mounting plate 10, to which a vertical driving device 3 is connected, to which a support plate 11 is connected on the output shaft of the vertical driving device 3, to which a transverse folding driving device 5 is connected on the support plate 11, to which a transverse moving plate 12 is connected on the output shaft of the transverse folding driving device 5, to which a transverse moving plate 12 is connected, a transverse folding groove 4 is provided on the transverse moving plate 12, to which a retraction driving device 9 is connected, to which a retraction plate 13 is connected on the output shaft of the retraction driving device 9, to which a lower folding plate arranged vertically with respect to the retraction plate 13 is connected on the retraction plate 13, to which a lower folding driving device 7 is connected on the lower folding plate, to which a connecting plate 14 is connected on the output shaft of the lower folding driving device 7, and to which a lower folding piece 6 is connected on the connecting plate 14.
[0037] Specifically, Figure 2 As shown, the main mounting plate 10 is vertically arranged with the support plate 11, and the support plate 11 is connected with a sliding plate 15 vertically arranged with the support plate 11, and a slide rail and slider mechanism is provided between the main mounting plate 10 and the sliding plate 15, between the support plate 11 and the transverse plate 12, between the transverse plate 12 and the retraction plate 13, and between the retraction plate 13 and the lower folding plate 6. The extension direction of the slide rail between the main mounting plate 10 and the sliding plate 15 is the same as the direction in which the vertical driving device 3 drives the support plate 11 to move, the extension direction of the slide rail between the support plate 11 and the transverse plate 12 is the same as the direction in which the transverse folding driving device 5 drives the transverse plate 12 to move, the extension direction of the slide rail between the transverse plate 12 and the retraction plate 13 is the same as the direction in which the retraction driving device 9 drives the retraction plate 13 to move, and the extension direction of the slide rail between the retraction plate 13 and the lower folding plate 6 is the same as the direction in which the lower folding driving device 7 drives the connecting plate 14 to move.
[0038] Specifically, Figure 2 As shown, the flip mechanism includes a U-shaped frame 16, and a rotating plate 17 is respectively provided in the opposite ends of the U-shaped frame 16. The rotating plate 17 is connected to a motor 18. With the length direction of the mold core 1 as the left and right direction, the left and right ends of the main mounting plate 10 are respectively connected to a rotating plate 17. The main mounting plate 10 is provided with two horizontal plates 19 symmetrically arranged on the left and right sides of the upper folding mechanism 29. The horizontal driving device 2 is arranged on the horizontal plate 19. The horizontal plate 19 and the upper folding mechanism 29 are both arranged on the mounting plate facing the side of the corrugated paper fixing module 30. The rotating shaft around which the rotating plate 17 rotates is located near the bottom end of the mold core 1 and is parallel to the length direction of the model, so that when the rotating plate 17 drives the main mounting plate 10 to rotate, the bottom end of the mold core 1 is always maintained in place, even if the mold core 1 rotates around the bottom end of the mold core 1. Its function is that through the setting of the U-shaped frame 16, the main mounting plate 10 can be installed in the U-shaped frame.
[0039] Specifically, Figure 2As shown, the bending module 32 also includes a bottom plate 20, on which a distance adjustment driving device 21 is provided for driving the mobile frame to move toward the corrugated paper fixing module 30, and the output shaft of the distance adjustment driving device 21 is connected to the U-shaped frame 16. Its function is that, through the setting of the distance adjustment driving device 21, the distance between the U-shaped frame 16 and the corrugated paper fixing module 30 can be adjusted to adapt to corrugated papers of different thicknesses.
[0040] Specifically, Figure 3 As shown, the corrugated paper fixing module 30 includes a first platform 22, a second platform 23, and a third platform 28 arranged in sequence from top to bottom. A vacuum suction cup 24 is provided on the first platform 22, a lifting device 25 is connected to the second platform 23, and the output shaft of the lifting device 25 is connected to the first platform 22. A limiting cylinder 26 is provided on the third platform 28, and a limiting rod 27 for limiting the angle of the cross-shaped corrugated paper is provided on the limiting cylinder 26, and the top height of the limiting rod 27 is higher than the top surface height of the first platform 22. There are four vacuum suction cups 24 and they are evenly distributed on the first platform 22 in a rectangular shape. There are four limiting cylinders 26 and they are evenly distributed on the third platform 28 in a rectangular shape, and the driving direction of each limiting cylinder 26 is along the corresponding diagonal direction of the rectangle formed by the four limiting cylinders 26. A limiting rod 27 is connected to the output shaft of each limiting cylinder 26. Its functions are as follows: through the setting of the vacuum suction cup 24, the corrugated paper can be prevented from being separated from the first platform 22; through the thickness of the lifting device 25, the height of the first platform 22 can be adjusted according to the thickness of the corrugated paper; through the setting of the limiting cylinder 26 and the limiting rod 27, the angle of the cross-shaped corrugated paper can be fixed to prevent the corrugated paper from rotating.
[0041] The horizontal driving device 2, the vertical driving device 3, the lateral folding driving device 5, the downward folding driving device 7, the retracting driving device 9, the distance adjusting driving device 21, and the lifting device 25 all adopt cylinders.
[0042] The working principle of this embodiment is described as follows: Figure 4 , Figure 5As shown, first, the center of the cross-shaped corrugated paper is placed on the first platform 22, and the corrugated paper is fixed by the vacuum suction cup 24 and the limit rod 27. At this time, the lower folding piece 6 is located in the placement groove 8 and the lower folding piece 6 is located below the first platform 22. The end surface of the lower folding piece 6 facing the corrugated paper fixing module 30 is flush with the end surface of the transverse folding groove 4 facing the corrugated paper fixing module 30. The core 1 is located on the left and right sides above the corrugated paper. Then, the horizontal driving device 2 is driven to make the core 1 located directly above the junction between the center part of the corrugated paper and the side of the corrugated paper. Then, the vertical driving device 3 is driven to drive the support plate 11 to move upward, so that when the lower folding piece 6 moves upward, the side of the corrugated paper originally placed horizontally is bent upward with the bottom edge of the core 1 near the upper folding mechanism 29 as the crease. Fold until the bottom surface of the transverse folding groove 4 is flush with the top surface of the first plane, and then drive the transverse folding drive device 5 to make the top of the transverse folding groove 4 move laterally to bend the side of the corrugated paper in the originally vertical state laterally with the top edge of the mold core 1 adjacent to the transverse folding groove 4 as the crease, and then drive the retracting drive device 9 to push the lower folding piece 6 laterally out of the placement groove 8, and then the section folding drive device 7 is used to bend the side of the corrugated paper in the originally horizontal state downward with the top edge of the mold core 1 away from the transverse folding groove 4 as the crease, and then drive the motor 18 to drive the main mounting plate 10 to rotate, so that the side of the corrugated paper is folded around the boundary line between the side of the corrugated paper and the center part of the corrugated paper, and finally drive the retracting drive device 9 and the horizontal drive device 2 to move the lower folding piece 6 and the mold core 1 out of the corrugated paper to complete the bending of the corrugated paper.
[0043] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.
Claims
1. An automatic corrugated paper forming mechanism, characterized in that: The invention comprises a corrugated paper fixing module (30) for fixing the corrugated paper and a bending module (32) for bending the side edge of the corrugated paper. The bending module (32) comprises a folding mechanism (31) for folding the side edge of the corrugated paper by pushing a pressure plate and a turning mechanism for turning over the folding mechanism (31) and the corrugated paper fixed on the folding mechanism (31). The folding mechanism (31) is connected to the turning mechanism. The corrugated paper fixing module (30) is arranged near the folding mechanism (31).
2. The automatic pit paper forming mechanism according to claim 1, characterized in that: The folding mechanism (31) comprises a mold core (1) and an upper folding mechanism (29); the mold core (1) is connected to a horizontal driving device (2) for driving the mold core (1) to move along the length direction of the mold core (1) to the position just above the middle of the side edge of the corrugated paper on the corrugated paper fixing module (30); the upper folding mechanism (29) is adjacent to a side of the mold core (1) facing away from the center of the corrugated paper; the upper folding mechanism (29) is connected to a vertical driving device (3) for driving the upper folding mechanism (29) to move along the height direction of the mold core (1).
3. The automatic pit paper forming mechanism according to claim 2, characterized in that: The upward folding mechanism (29) comprises a transverse folding groove (4) arranged toward the mold core (1), the height of the transverse folding groove (4) being greater than the height of the mold core (1), and the upward folding mechanism (29) is connected to a transverse folding driving device (5) for driving the transverse folding groove (4) to move along the thickness direction of the mold core (1).
4. The automatic pit paper forming mechanism according to claim 3, characterized in that: The upward folding mechanism (29) comprises a lower folding plate (6), and the lower folding plate (6) is connected to a downward folding driving device (7) for driving the lower folding plate (6) to move along the height direction of the mold core (1).
5. The automatic pit paper forming mechanism according to claim 4, characterized in that: The lower folding piece (6) is arranged above the transverse folding groove (4), and a placement groove (8) for placing the bottom of the lower folding piece (6) is arranged above the transverse folding groove (4). The lower folding piece (6) is connected to a retracting driving device (9) for moving the lower folding piece (6) from the outside of the top of the placement groove (8) along the thickness direction of the mold core (1) to the inside of the placement groove (8).
6. The automatic pit paper forming mechanism according to claim 5, characterized in that: The bending module (32) also includes a main mounting plate (10), the main mounting plate (10) is connected to a vertical driving device (3), the output shaft of the vertical driving device (3) is connected to a support plate (11), the support plate (11) is connected to a transverse folding driving device (5), the output shaft of the transverse folding driving device (5) is connected to a transverse shifting plate (12), the transverse folding groove (4) is arranged on the transverse shifting plate (12), the transverse shifting plate (12) is connected to a retracting driving device (9), the output shaft of the retracting driving device (9) is connected to a retracting plate (13), the retracting plate (13) is connected to a lower folding plate arranged perpendicular to the retracting plate (13), the lower folding plate is connected to a lower folding driving device (7), the output shaft of the lower folding driving device (7) is connected to a connecting plate (14), and the lower folding plate (6) is connected to the connecting plate (14).
7. The automatic pit paper forming mechanism according to claim 6, characterized in that: The main mounting plate (10) and the support plate (11) are arranged vertically, and a sliding plate (15) arranged vertically with the support plate (11) is connected to the support plate (11). A sliding rail and slider mechanism is arranged between the main mounting plate (10) and the sliding plate (15), between the support plate (11) and the transverse plate (12), between the transverse plate (12) and the retracting plate (13), and between the retracting plate (13) and the lower folding plate (6). The extension direction of the sliding rail between the main mounting plate (10) and the sliding plate (15) is aligned with the vertical driving device (3). The direction in which the support plate (11) is driven to move is the same; the extension direction of the slide rail between the support plate (11) and the transverse plate (12) is the same as the direction in which the transverse folding drive device (5) drives the transverse plate (12) to move; the extension direction of the slide rail between the transverse plate (12) and the retracting plate (13) is the same as the direction in which the retracting drive device (9) drives the retracting plate (13) to move; and the extension direction of the slide rail between the retracting plate (13) and the lower folding plate (6) is the same as the direction in which the lower folding drive device (7) drives the connecting plate (14) to move.
8. The automatic pit paper forming mechanism according to claim 6, characterized in that: The turning mechanism comprises a U-shaped frame (16), wherein a rotating plate (17) is respectively arranged at opposite ends of the U-shaped frame (16), and the rotating plate (17) is connected to a motor (18). With the length direction of the mold core (1) as the left and right direction, the left and right ends of the main mounting plate (10) are respectively connected to a rotating plate (17), and the main mounting plate (10) is provided with two horizontal plates (19) symmetrically arranged on the left and right sides of the upper folding mechanism (29), and the horizontal driving device (2) is arranged on the horizontal plate (19), and the horizontal plate (19) and the upper folding mechanism (29) are both arranged on the side of the mounting plate facing the corrugated paper fixing module (30).
9. The automatic pit paper forming mechanism according to claim 7, characterized in that: The bending module (32) further comprises a bottom plate (20), on which a distance-adjusting driving device (21) is provided for driving the movable frame to move toward the corrugated paper fixed module (30), and an output shaft of the distance-adjusting driving device (21) is connected to the U-shaped frame (16).
10. The automatic pit paper forming mechanism according to claim 1, characterized in that: The corrugated paper fixing module (30) comprises a first platform (22), a second platform (23), and a third platform (28) which are arranged in sequence from top to bottom. The first platform (22) is provided with a vacuum suction cup (24). The second platform (23) is connected with a lifting device (25). The output shaft of the lifting device (25) is connected to the first platform (22). The third platform (28) is provided with a limiting cylinder (26). The limiting cylinder (26) is provided with a limiting rod (27) for limiting the angle of the cross-shaped corrugated paper. The top end height of the limiting rod (27) is higher than the top surface height of the first platform (22).