Airplane box folding device

Abstract

The utility model discloses an aircraft box folding device, including frame, a plurality of blocking piece and intermediate guide subassembly, a plurality of blocking piece interval setting are on the frame, and enclose and form the rectangular space suitable for accommodating paper box, intermediate guide subassembly sets up on the side of frame length direction and / or width direction, and is located between two blocking piece of adjacent, wherein, intermediate guide subassembly includes mounting seat and sets up the guide wheel on mounting seat, and the guide wheel is used to in the folding process to the side plate of paper box carries out the supplementary resistance and the guidance, the utility model discloses an aircraft box folding device, can provide supplementary resistance and dynamic guidance to the middle part area of aircraft box side plate (especially long side side plate), effectively prevented the problem that the side plate bulge, the bending deformation or folding is not in place of easy production in the quick folding process of large -size aircraft box because of the lack of mid -section support, improved the forming efficiency of aircraft box and the squareness after forming.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically to a folding device for airplane boxes. Background Technology

[0002] With the rapid development of e-commerce logistics, cardboard boxes are widely used in the packaging of various products due to their sturdy structure and good pressure resistance. To improve packaging efficiency, some cardboard box folding auxiliary devices have emerged in related technologies. These devices typically include a frame and corner stops distributed around the frame. During operation, the operator places the unfolded cardboard on top of the frame, presses down on the bottom plate of the cardboard box, and uses the corner stops to force the front, back, left, and right side panels of the cardboard box to fold upwards, thereby completing the folding process.

[0003] However, existing folding devices mainly rely on a few points at the corners to limit and support the cardboard box. For longer or wider boxes, the cardboard is prone to bulging, bending, or incomplete folding during rapid folding, affecting the squareness of the finished product. Furthermore, the side blocking structures are often quite simple, lacking effective guidance for the box lid, which can easily lead to interference or misalignment between the lid and the blocking components during folding. Additionally, for side lugs of different thicknesses or specifications, fixed support structures cannot guarantee a good stopping effect. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in the related art. Therefore, the purpose of this invention is to provide a folding device for an airplane box.

[0005] To achieve the above objectives, the airplane box folding device according to an embodiment of the present invention includes:

[0006] frame;

[0007] Multiple blocking elements are spaced apart on the frame and enclose a rectangular space suitable for accommodating a cardboard box;

[0008] An intermediate guide assembly is disposed on the side of the frame in the length direction and / or width direction, and is located between two adjacent blocking members;

[0009] The intermediate guide assembly includes a mounting base and guide wheels disposed on the mounting base. The guide wheels are used to assist in supporting and guiding the side panels of the cardboard box during the folding process.

[0010] According to the folding device for airplane boxes provided in this embodiment of the present invention, by setting an intermediate guide component on the side of the frame and between adjacent blocking members, it can provide auxiliary support and dynamic guidance for the middle area of ​​the side panel (especially the long side panel) of the airplane box, effectively preventing the side panel from bulging, bending deformation or incomplete folding due to lack of middle support during the rapid folding of large-sized airplane boxes; at the same time, by utilizing the rolling contact characteristics of the guide wheels, not only is the resistance when the cardboard is folded reduced, but the side panel can also be smoothly guided to fold upward along a predetermined trajectory, thereby improving the forming efficiency and squareness of the airplane box after forming.

[0011] In addition, the airplane box folding device according to the above embodiments of the present invention may also have the following additional technical features:

[0012] According to one embodiment of the present invention, the guide wheel includes a first guide wheel and a second guide wheel, which are disposed on both sides of the mounting base.

[0013] According to one embodiment of the present invention, the mounting base has an inclined guide surface that is inclined from top to bottom toward the inside of the rectangular space, and the wheel surface of the guide wheel protrudes from the inclined guide surface.

[0014] According to one embodiment of the present invention, there are multiple intermediate guide components, and the multiple intermediate guide components are spaced apart on the sides of the frame in the length direction or width direction.

[0015] According to one embodiment of the present invention, there are multiple sets of guide wheels, the height positions of the multiple sets of guide wheels are different, and the wheel surfaces of the multiple guide wheels form a rolling slope that slopes from top to bottom toward the inside of the rectangular space.

[0016] According to one embodiment of the present invention, the first guide wheel and the second guide wheel are symmetrically arranged on both sides of the mounting base.

[0017] According to one embodiment of the present invention, the plurality of blocking members include two rear blocking members spaced apart, and a rear lateral blocking member is provided on the left and right sides of the two rear blocking members respectively.

[0018] The rear lateral blocking member is provided with a side ear support member. The side ear support member is constructed as an upwardly protruding plate structure, which is used to block the side ears at both ends of the rear side panel of the cardboard box during folding. The side ear support member facing the rear blocking member has a beveled surface, which is configured to hook the cover side ear of the cardboard box when the cardboard box is pressed and folded.

[0019] According to one embodiment of the present invention, the oblique cut surface is inclined from the outside of the rectangular space to the inside of the rectangular space in a direction away from the rear blocking member.

[0020] According to one embodiment of the present invention, the side ear support is a replaceable part, and the side ear support is detachably connected to the rear lateral blocking part.

[0021] According to one embodiment of the present invention, the intermediate guide assembly further includes a locking member, the mounting base is slidable on the side of the frame, and the locking member is configured to selectively lock the mounting base to the frame.

[0022] According to one embodiment of the present invention, it further includes a support arm, which is pivotally connected to the rear side of the frame or the blocking member, for supporting the cover plate of the cardboard box.

[0023] An angle limiting structure is provided at the connection between the support arm and the frame or the blocking member to limit the unfolding angle of the support arm.

[0024] According to one embodiment of the present invention, the angle limiting structure includes a limiting block, which is fixedly disposed on the blocking member or the frame;

[0025] When the support arm is flipped outward to the unfolded position, the support arm and the limiting block abut against each other to limit the maximum flipping angle of the support arm and keep it in a predetermined support posture.

[0026] According to one embodiment of the present invention, the limiting block is provided with a groove, and when the supporting arm is flipped outward to the unfolded position, the supporting arm is located in the groove.

[0027] According to one embodiment of the present invention, the limiting block and the blocking member are integrally formed.

[0028] According to one embodiment of the present invention, the plurality of blocking members further includes two front lateral blocking members, each of which is provided with an upwardly protruding guide positioning member. The guide positioning member has a guide slope extending obliquely from top to bottom and rearward, for guiding and positioning the position of the left or right side plate of the cardboard box.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the airplane box folding device according to an embodiment of the present invention;

[0032] Figure 2 This is an exploded view of a portion of the structure of the airplane box folding device according to an embodiment of this utility model;

[0033] Figure 3 This is a schematic diagram of the rear lateral blocking component in the airplane box folding device of this utility model embodiment;

[0034] Figure 4 This is a schematic diagram of the structure of the intermediate guide assembly in the airplane box folding device according to an embodiment of this utility model;

[0035] Figure 5 This is a structural schematic diagram of another part of the airplane box folding device according to an embodiment of the present utility model;

[0036] Figure 6 This is a structural diagram of an airplane box (unfolded).

[0037] Figure label:

[0038] 10. Framework;

[0039] 101. Guide rail;

[0040] 20a. Rear stopper;

[0041] 20b. Rear lateral blocking element;

[0042] 20c. Front lateral blocking component;

[0043] 201. Limit block;

[0044] 21. Side ear support;

[0045] S21, oblique cut surface;

[0046] 22. Guide and positioning components;

[0047] S22, guide ramp;

[0048] 30. Intermediate guide component;

[0049] 301. Mounting bracket;

[0050] 302. First guide wheel;

[0051] 303. Second guide wheel;

[0052] 304. Locking components;

[0053] S30, Inclined guide surface;

[0054] 40. Support arm;

[0055] 50. Cardboard boxes;

[0056] 501. Base plate;

[0057] 502. Rear side panel;

[0058] 5021, tilt your ear;

[0059] 503. Left side panel;

[0060] 504. Right side panel;

[0061] 505. Cover plate.

[0062] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0063] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0064] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0066] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0067] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0068] The airplane box folding device of this utility model embodiment is described in detail below with reference to the accompanying drawings.

[0069] Reference Figures 1 to 6 As shown, the airplane box folding device provided according to the embodiment of the present utility model includes a frame 10, a plurality of blocking members and an intermediate guide assembly 30.

[0070] Specifically, the frame 10, as the basic support structure of the airplane box folding device, is usually formed by multiple guide rails 101, such as using four guide rails 101 to form a rectangular frame 10 structure.

[0071] Multiple blocking members are spaced apart on the frame 10 and enclose a rectangular space suitable for accommodating the paper box 50. The blocking members are used to block the various side panels of the paper box 50 during the folding process, so that when the bottom plate 501 of the paper box 50 is pressed down, the other side panels are folded upward under the blocking effect of the blocking members.

[0072] An intermediate guide assembly 30 is disposed on the edge of the frame 10 in the length and / or width directions, and located between two adjacent blocking members. This intermediate guide assembly 30 fills the support gap between two adjacent blocking members to accommodate larger aircraft boxes. It is understood that the intermediate guide assembly 30 can be disposed on the guide rail 101 in the length direction of the frame 10, on the guide rail 101 in the width direction of the frame 10, or on both the guide rail 101 in the length and width directions of the frame 10.

[0073] The intermediate guide assembly 30 includes a mounting base 301 and guide wheels disposed on the mounting base 301. The mounting base 301 is configured to fit and be mounted on the guide rail 101 of the frame 10. Preferably, the mounting base 301 and the guide rail 101 of the frame 10 are connected by a sliding fit, allowing the intermediate guide assembly 30 to move and adjust along the extension direction of the guide rail 101. The guide wheels are used to assist in supporting and guiding the side panels of the carton 50 during folding. Exemplarily, the guide wheels are rotatably mounted on the mounting base 301 via a pivot, and their axis of rotation is preferably parallel to the direction of the guide rail 101 in which they are located.

[0074] During the actual folding process, when the operator places the unfolded cardboard above the frame 10 and presses down on the bottom plate 501 of the cardboard box 50, the side panels of the cardboard box 50 will begin to fold upwards under the action of the blocking components. For longer side panels (such as the long side panels of a rectangular airplane), due to the flexibility of the cardboard material itself, the middle part tends to arch outwards or bend in a wavy shape during rapid folding. At this time, the intermediate guide assembly 30 located between adjacent blocking components plays a supporting and guiding role. The guide wheels on it will be in close contact with the outer surface of the middle part of the side panel, providing a reverse supporting force, so that the side panel remains straight and moves upwards along a predetermined trajectory. At the same time, since the guide wheels and the cardboard are in rolling friction contact, the frictional resistance during the relative movement of the cardboard is reduced, thereby ensuring that the side walls of the folded airplane box are flat and crisp.

[0075] According to the airplane box folding device provided in this embodiment of the utility model, by setting an intermediate guide component 30 on the side of the frame 10 and between adjacent blocking members, it can provide auxiliary support and dynamic guidance for the middle area of ​​the airplane box side panel (especially the long side panel), effectively preventing the side panel from bulging, bending deformation or incomplete folding that is easy to occur in large-sized airplane boxes during rapid folding due to lack of middle section support; at the same time, by utilizing the rolling contact characteristics of the guide wheel, not only is the resistance when the cardboard is folded reduced, but the side panel can also be smoothly guided to fold upward along a predetermined trajectory, thereby improving the forming efficiency and squareness of the airplane box after forming.

[0076] In some embodiments of this invention, there are multiple intermediate guide components 30, which are spaced apart along the sides of the frame 10 in the length or width direction. For example, for a long side panel, two, three, or even more intermediate guide components can be evenly arranged on the corresponding side guide rail 101 to form a multi-point support structure. The use of multiple spaced intermediate guide components improves the adaptability of the folding device to folding oversized or slender aircraft boxes, and enhances the stability and smoothness of the side panel folding process.

[0077] In one embodiment of the present invention, the mounting base 301 has an inclined guide surface S30, which is inclined from top to bottom toward the inside of the rectangular space, and the wheel surface portion of the guide wheel protrudes from the inclined guide surface S30.

[0078] By setting an inclined guide surface S30 that slopes inward from top to bottom, a progressive folding guide is provided for the folding of the side panel of the cardboard box 50, which can effectively correct the positional deviation of the side panel in the initial stage of folding; while the guide wheel protrudes from the inclined guide surface S30, ensuring that rolling contact is used to reduce resistance during folding, thereby protecting the cardboard box 50 from scratches. In this way, the smoothness of the folding process and the surface quality of the finished product are improved.

[0079] In one embodiment of this utility model, the guide wheel includes a first guide wheel 302 and a second guide wheel 303, which are disposed on both sides of the mounting base 301 along the cardboard box 50. Preferably, the first guide wheel 302 and the second guide wheel 303 are symmetrically arranged on both sides of the mounting base 301.

[0080] By employing the arrangement of the first guide wheel 302 and the second guide wheel 303 on both sides, the contact between the intermediate guide component 30 and the side plate of the cardboard box 50 is bilateral. During the dynamic process of folding the cardboard box 50, the first guide wheel 302 and the second guide wheel 303 simultaneously contact the outer surface of the side plate, which enhances the guiding stability and correction capability of the intermediate guide component 30, ensures the stability and consistency of each folding action, and thus improves the forming quality of the cardboard box 50.

[0081] Preferably, there are multiple sets of guide wheels, each set having a different height position, and the wheel surfaces of the multiple guide wheels form a rolling ramp that slopes from top to bottom toward the inside of the rectangular space. In this way, the rolling ramp formed by the wheel surfaces of the multiple guide wheels contacts the side plate of the cardboard box and generates rolling friction, further improving the smoothness and reliability during the folding process.

[0082] In one embodiment of this utility model, the plurality of blocking members include two spaced-apart rear blocking members 20a, and a rear lateral blocking member 20b is provided on the left and right sides of the two rear blocking members 20a respectively. The rear lateral blocking members 20b on both sides of the rear blocking members 20a are used to block the left side plate 503 and the right side plate 504 of the paper box 50, thereby realizing the folding of the left side plate 503 and the right side plate 504 of the paper box 50.

[0083] The rear lateral blocking member 20b is provided with a side ear support member 21. The side ear support member 21 is constructed as an upwardly protruding plate structure, which is used to block the side ears 5021 at both ends of the rear side plate 502 of the cardboard box 50 during folding. The side ear support member 21 has a beveled surface S21 on the side facing the rear blocking member 20a. The beveled surface S21 is configured to hook the side ears 5051 of the cover plate 505 of the cardboard box 50 when the cardboard box 50 is pressed and folded.

[0084] In other words, one of the main functions of the side lug support 21 is to passively fold the side lugs 5021 at both ends of the rear side panel 502 of the cardboard box. When the operator presses the bottom plate 501 to make the cardboard box 50 sink, and the rear side panel 502 is held up by the rear stop 20a and flips up, the side lugs 5021 at both ends of the rear side panel 502 will be blocked by the inner side wall of the side lug support 21 at the same time, thus bending inward by 90 degrees relative to the rear side panel 502.

[0085] Furthermore, the side ear support 21 structurally serves to limit the position of the cover plate 505. A beveled surface S21 is formed on the side of the side ear support 21 facing the rear stopper 20a (i.e., the rearward-facing side). When the carton 50 is pressed and folded, and the rear side panel 502 is subsequently erected, the cover plate 505 connected to the top of the rear side panel 502 often tilts forward or sways unpredictably due to gravity. At this time, the beveled surface S21 on the back of the side ear support 21 is precisely on the movement trajectory of the side ear 5051 of the cover plate 505. During the folding process, this beveled surface S21 can catch the cover plate 505 of the carton 50, preventing the cover plate 505 from accidentally sliding forward and obstructing the rectangular space during the uprighting of the rear side panel 502.

[0086] In this embodiment, the side ear support 21 has both the folding function of the side ear 5021 and the limiting function of the cover plate 505, which improves the smoothness and stability of the folding process of the airplane box and ensures that each pressing operation can produce a finished paper box 50 with a regular outline and smooth opening and closing.

[0087] Preferably, the beveled surface S21 is inclined from the outside of the rectangular space to the inside of the rectangular space in a direction away from the rear blocking member 20a. This beveled surface S21 can accommodate and correct the positional deviation of the cover plate 505 during the folding process, and makes it easier to hook the end of the cover plate 505.

[0088] In one embodiment of the present invention, the plurality of blocking members further includes two front lateral blocking members 20c. Each of the two front lateral blocking members 20c is provided with an upwardly protruding guide positioning member 22. The guide positioning member 22 has a guide slope S22 that extends obliquely from top to bottom and rearward, for guiding and positioning the position of the left side plate 503 or the right side plate 504 of the paper box.

[0089] In this embodiment, two front lateral blocking members 20c cooperate with two rear lateral blocking members 20b. The left rear lateral blocking member 20b and the left front lateral blocking member 20c are used to support and block both ends of the left side panel 503 of the cardboard box, enabling the left side panel 503 to fold. The right rear lateral blocking member 20b and the right front lateral blocking member 20c are used to support and block both ends of the right side panel 504 of the cardboard box, enabling the left side panel 503 and the right side panel 504 of the cardboard box to fold smoothly, further improving the reliability of the folding of the left side panel 503 and the right side panel 504.

[0090] Furthermore, the guide positioning member 22 on the left-side front lateral blocking member 20c is used to position and guide the left side panel 503 of the cardboard box, and the guide positioning member 22 on the right-side front lateral blocking member 20c is used to position and guide the right side panel 504 of the cardboard box. When the cardboard to be folded is placed into the rectangular space, the left side panel 503 and the right side panel 504 are guided by the guide slope S22 of the guide positioning member 22, moving towards the inside of the rectangular space, and finally locking into the inside of the guide positioning member 22. Since the left side panel 503 and the right side panel 504 are at both ends of the width direction of the cardboard box, the width direction positioning of the cardboard box can be achieved by guiding and positioning the positions of the left side panel 503 and the right side panel 504. This ensures that the cardboard position can be quickly positioned during the folding operation, and that each side panel can be accurately and reliably folded as the bottom plate of the cardboard is pressed. This improves the convenience of the folding process, eliminates the need for complex manual visual positioning, and results in higher folding efficiency and higher squareness of the folded shape.

[0091] In one embodiment of the present invention, the intermediate guide assembly 30 further includes a locking member 304. The mounting base 301 is slidable on the side of the frame 10, and the locking member 304 is configured to selectively lock the mounting base 301 to the frame 10. Exemplarily, the mounting base 301 has a groove that matches the cross-section of the guide rail 101 on the side of the frame 10, allowing the mounting base 301 to be slidably mounted on the guide rail 101 of the frame 10, thereby enabling free movement between adjacent blocking members along the extending direction of the guide rail 101.

[0092] The locking element 304 is movably connected to the mounting base 301 and has an unlocked state and a locked state. The operator can manually operate the locking element 304 to release its clamping or pressing against the frame 10, and then slide the mounting base 301 to the center position where the side panel is prone to deformation or other key stress points according to the specific side length of the aircraft box to be folded. Finally, the locking element 304 is operated again to lock it into the locked state, and the mounting base 301 is firmly positioned in that position by mechanical friction or a snap-fit ​​structure.

[0093] The locking element 304 can be a knob-type screw, which generates locking friction by rotating the screw so that its end presses against the surface of the guide rail 101; or, in order to improve operating efficiency, the locking element 304 adopts a lever-type eccentric clamping structure.

[0094] The use of a sliding mounting base 301 and a locking element 304 enhances the versatility of the folding device. Operators can adjust the support position of the intermediate guide assembly 30 according to changes in the size of the aircraft box, ensuring that the guide wheels operate on the middle section of the side panel where bulging is likely. Simultaneously, the locking element guarantees the reliable fixation of the mounting base 301, ensuring consistent guidance and stable molding quality.

[0095] In one embodiment of this utility model, the side ear support 21 is a replaceable part, and the side ear support 21 is detachably connected to the rear lateral blocking member 20b. For example, the detachable connection is made by bolts or screws.

[0096] In practical applications, the side ear support 21 is provided as a series of accessories with different specifications. For example, these side ear supports 21 have different thicknesses. Operators only need to use simple tools to disassemble the side ear support 21 and then replace it with the side ear support 21 of the required specifications.

[0097] Because different models of cardboard boxes have different positions and required spaces for folding the rear side panel 502 flaps, if the thickness of the flap support 21 remains constant, an excessively narrow flap support 21 may cause the flap to fold at the wrong angle, spring back excessively, or become loosely formed when handling large-sized cardboard. Therefore, by preparing multiple flap support pieces 21 of different thicknesses, users can flexibly select the flap support 21 with the best matching thickness and install it on the rear lateral stop 20b according to the specific dimensions of the current cardboard box 50, thereby better controlling the effectiveness and reliability of flap folding.

[0098] In some embodiments of this utility model, the airplane box folding device further includes a support arm 40, which is pivotally connected to the rear side of the frame 10 or to the blocking member, for supporting the cover plate 505 of the cardboard box 50. Preferably, there are two support arms 40, which are pivotally connected to two rear blocking members 20a on the rear side of the frame 10, respectively.

[0099] An angle limiting structure is provided at the connection between the support arm 40 and the frame 10 or the blocking member to limit the unfolding angle of the support arm 40.

[0100] When the device is needed for folding operations, the operator manually flips the support arm 40 outward to the unfolded position. At this time, the angle limiting structure stops the support arm 40 at a predetermined support angle position. In this position, the support arm 40 is located outside the rectangular space and tilts backward and upward, thus forming a stable support backrest. When the operator places the unfolded cardboard on top of the rectangular space, the cover plate 505 of the cardboard box 50 can naturally lean back against the support arm 40. This design not only prevents the cover plate 505 from tilting forward and covering the opening of the rectangular space due to its own weight or the rebound force of the cardboard, but also effectively prevents the cover plate 505 from interfering with the position of the upright rear side plate 502 or side lug 5021 during subsequent side plate folding, ensuring smooth folding operations.

[0101] When the device is not in use or needs to be stored and moved, the operator can rotate the support arm 40 in the reverse direction to the folded position. The support arm 40 can be stored inside the rectangular space. At this time, the support arm 40 no longer protrudes outward, thus significantly reducing the overall external volume of the device and preventing damage or space waste caused by exposed support arms 40 during transportation or storage. This dual-position switching design takes into account both the functional needs during operation and the convenience of storage when not in use.

[0102] In one embodiment of this utility model, the angle limiting structure includes a limiting block 201, which is fixedly disposed on the blocking member or the frame 10. Preferably, the limiting block 201 is integrally formed with the blocking member. When the supporting arm 40 is flipped outward to the unfolded position, the supporting arm 40 and the limiting block 201 abut against each other to limit the maximum flipping angle of the supporting arm 40 and keep it in a predetermined supporting posture.

[0103] In this embodiment, the limiting block 201 acts as a rigid support structure, preventing the support arm 40 from continuing to flip backward. It can accurately and reliably limit the maximum flipping angle of the support arm 40, so that it can be stably maintained in the predetermined support posture, providing a stable support angle for the cover plate 505 of the paper box 50.

[0104] Preferably, the limiting block 201 is provided with a groove, and when the support arm 40 is flipped outward to the unfolded position, the support arm 40 is located in the groove. The groove provides a more reliable positioning constraint for the support arm 40, which not only restricts its flipping freedom, but also restricts its lateral swing freedom, thereby improving the stability and reliability of the support arm 40 in the unfolded state.

[0105] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0106] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A folding device for an airplane box, comprising: frame; Multiple blocking elements are spaced apart on the frame and enclose a rectangular space suitable for accommodating a cardboard box; An intermediate guide assembly is disposed on the side of the frame in the length direction and / or width direction, and is located between two adjacent blocking members; The intermediate guide assembly includes a mounting base and guide wheels disposed on the mounting base. The guide wheels are used to assist in supporting and guiding the side panels of the cardboard box during the folding process.

2. The airplane box folding device according to claim 1, characterized in that, The guide wheel includes a first guide wheel and a second guide wheel, which are located on both sides of the mounting base.

3. The folding device for an airplane box according to claim 2, characterized in that, The mounting base has an inclined guide surface that slopes from top to bottom toward the inside of the rectangular space, and the wheel surface of the guide wheel protrudes from the inclined guide surface.

4. The airplane box folding device according to claim 2, characterized in that, There are multiple intermediate guide components, which are spaced apart on the sides of the frame in the length or width direction.

5. The folding device for an airplane box according to claim 2, characterized in that, The guide wheels are in multiple sets, with different height positions, and the wheel surfaces of the multiple guide wheels form a rolling ramp that slopes from top to bottom toward the inside of the rectangular space.

6. The folding device for an airplane box according to any one of claims 2 to 5, characterized in that, The first guide wheel and the second guide wheel are symmetrically arranged on both sides of the mounting base.

7. The folding device for the airplane box according to any one of claims 1 to 5, characterized in that, The plurality of blocking members include two rear blocking members spaced apart, and a rear lateral blocking member is provided on the left and right sides of each of the two rear blocking members; The rear lateral blocking member is provided with a side ear support member. The side ear support member is constructed as an upwardly protruding plate structure, which is used to block the side ears at both ends of the rear side panel of the cardboard box during folding. The side ear support member facing the rear blocking member has a beveled surface, which is configured to hook the cover side ear of the cardboard box when the cardboard box is pressed and folded.

8. The folding device for an airplane box according to claim 7, characterized in that, The oblique cut surface is inclined from the outside of the rectangular space to the inside of the rectangular space in a direction away from the rear blocking member.

9. The folding device for an airplane box according to claim 7, characterized in that, The side ear support is a replaceable component, and the side ear support is detachably connected to the rear lateral blocking component.

10. The folding device for an airplane box according to any one of claims 1 to 5, characterized in that, The intermediate guide assembly also includes a locking element, the mounting base being slidable on the side of the frame, and the locking element being configured to selectively lock the mounting base to the frame.

11. The folding device for an airplane box according to any one of claims 1 to 5, characterized in that, It also includes a support arm, which is pivotally connected to the rear side of the frame or the blocking member, for supporting the cover of the carton; An angle limiting structure is provided at the connection between the support arm and the frame or the blocking member to limit the unfolding angle of the support arm.

12. The folding device for an airplane box according to claim 11, characterized in that, The angle limiting structure includes a limiting block, which is fixedly mounted on the blocking member or the frame. When the support arm is flipped outward to the unfolded position, the support arm and the limiting block abut against each other to limit the maximum flipping angle of the support arm and keep it in a predetermined support posture.

13. The folding device for an airplane box according to claim 12, characterized in that, The limiting block is provided with a groove, and when the supporting arm is flipped outward to the unfolded position, the supporting arm is located in the groove.

14. The folding device for an airplane box according to claim 12, characterized in that, The limiting block and the blocking component are integrally formed.

15. The folding device for an airplane box according to any one of claims 1 to 5, characterized in that, The plurality of blocking members also include two front lateral blocking members, each of which is provided with an upwardly protruding guide positioning member. The guide positioning member has a guide slope extending from top to bottom and rearward, used to guide and position the left or right side panel of the cardboard box.

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