A carton folding mechanism

Abstract

The application discloses a carton folding mechanism, comprising a folding guide bottom frame and a supporting structure connected with the folding guide bottom frame; the folding guide bottom frame comprises transverse supporting guide rails, longitudinal supporting guide rails and connecting plates, each connecting plate is connected with corresponding transverse supporting guide rails and longitudinal supporting guide rails, the connecting plate comprises a first plate body and a second plate body; the supporting structure comprises a first supporting device movably connected with the first plate body, an upper end surface of the first supporting device is provided with a guide surface extending to one side of a folding area, the first supporting device can relatively move with the first plate body, so that the first supporting device can be switched between a first state and a second state; when the first supporting device is in the first state, the first supporting device is parallel to the transverse supporting guide rails; when the first supporting device is in the second state, an included angle formed between the first supporting device and the transverse supporting guide rails is an acute angle. The application has the advantages of good adaptability and good folding effect.

Description

Technical Field

[0001] This application relates to origami devices, and more particularly to a paper box folding mechanism. Background Technology

[0002] Airplane boxes, a type of cardboard box, are made from corrugated cardboard. They offer excellent value for money and are widely used in product packaging and express delivery. Airplane boxes are typically rectangular in shape and are formed by folding cardboard. The cardboard includes: a base plate, a front support plate, a rear support plate, a front flap, a rear flap, side wings, flaps, a top cover, and a hinged cover.

[0003] The cardboard box folding mechanism in related technologies typically includes a folding frame and a support structure mounted on the folding frame. During the cardboard box folding process, the unfolded cardboard is first placed on the folding mechanism, and then pressed down to fold the cardboard into shape under the guidance and support of the support structure. However, when the height of the cardboard box is close to the height of the support structure, the support structure easily abuts against the lower edge of the cardboard box's flaps during the folding and pressing process, preventing the box from being pressed down and affecting the folding effect, thus requiring urgent improvement. Utility Model Content

[0004] The first objective of this application is to provide a paper box folding mechanism that has the advantages of good adaptability and good folding effect.

[0005] To achieve the above objectives, this application provides a paper box folding mechanism, comprising: The system comprises a folding guide frame and a supporting structure connected to the folding guide frame. Multiple supporting structures are provided, and these multiple supporting structures enclose a folding area. The folding guide frame includes two parallel transverse support rails and two parallel longitudinal support rails. The two transverse support rails and the two longitudinal support rails are located in two parallel planes and intersect each other to form multiple intersections. Each intersection is provided with a connecting plate, and each connecting plate is connected to the corresponding transverse support rail and longitudinal support rail. The connecting plate includes a first plate and a second plate. The supporting structure includes a first supporting device movably connected to the first plate. The upper surface of the first supporting device is provided with a guide surface extending towards the folding area. The first supporting device can move relative to the first plate, allowing it to switch between a first state and a second state. When the first supporting device is in the first state, it is parallel to the transverse support rails. When the first supporting device is in the second state, the angle formed between the first supporting device and the transverse support rails is an acute angle.

[0006] In one embodiment, the bottom of the first support device is provided with a first insertion post and a second fixing hole; the first plate is provided with a first connecting hole, a second connecting hole and a third connecting hole; when the first insertion post is inserted into the first connecting hole and the second fixing hole is fixedly connected to the second connecting hole by bolts, the first support device is in a first state; when the first insertion post is inserted into the second connecting hole and the second fixing hole is fixedly connected to the third connecting hole by bolts, the first support device is in a second state.

[0007] In one embodiment, when the first plug is inserted into the second connecting hole, and the second fixing hole and the third connecting hole are fixedly connected by bolts, the included angle between the first support device and the transverse support slide rail is 45 degrees.

[0008] In one embodiment, the second and third connecting holes are configured as strip-shaped holes extending parallel to the direction of the lateral support slide rail.

[0009] In one embodiment, the first support device is provided with a first end face, and the first plate is provided with a second end face; when the first plug is inserted into the second connecting hole, and the second fixing hole and the third connecting hole are fixedly connected by bolts, the first end face and the second end face abut against each other.

[0010] In one embodiment, the bottom end of the first support device near the folding area is rotatably connected to the first plate to adjust the relative position between the first support device and the transverse support slide rail, so that the first support device can switch between a first state and a second state.

[0011] In one embodiment, a positioning element is provided between the first support device and the first plate to restrict the rotation between the first support device and the first plate.

[0012] In one embodiment, the first plate has an arc-shaped groove, and the bottom of the first support device has a positioning hole; when the first support device rotates, the positioning hole is always located above the arc-shaped groove; the positioning element passes through the arc-shaped groove and is connected to the positioning hole to restrict the rotation between the first support device and the first plate. Analysis shows that this application has the following technical effects.

[0013] The first support device of the cardboard box folding mechanism can move relative to the first plate, so that the first support device has a first state and a second state, and can switch between the first state and the second state to adapt to the folding of different sizes of cardboard boxes, thereby improving the adaptability of the cardboard box folding device and ensuring a good folding effect for cardboard boxes. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein: Figure 1 This is a schematic diagram of the paperboard structure in one embodiment of this application; Figure 2 This is a schematic diagram of the paperboard folding mechanism and paperboard in a first state according to an embodiment of this application; Figure 3 This is a schematic diagram of the cardboard folding mechanism in the first state according to an embodiment of this application; Figure 4 This is a schematic diagram of the cardboard folding mechanism in a first state according to one embodiment of this application from another perspective; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the paperboard folding mechanism and paperboard in the second state of one embodiment of this application; Figure 7 This is a schematic diagram of the cardboard folding mechanism in the second state in one embodiment of this application; Figure 8 This is a schematic diagram of the cardboard folding mechanism in the second state of one embodiment of this application from another perspective; Figure 9 for Figure 8 Enlarged view of point B in the middle; Figure 10 This is a schematic diagram of the structure of the first plate and the first support device in a first state according to an embodiment of this application; Figure 11 This is a structural schematic diagram of the first plate and the first support device in a second state according to an embodiment of this application; Figure 12 This is an exploded view of the structure of the first plate and the first support device in one embodiment of this application; Figure 13 This is a schematic diagram of the structure of the first support device in one embodiment of this application; Figure 14 This is a schematic diagram of the cardboard folding mechanism in one embodiment of this application; Figure 15 for Figure 14 Enlarged view of point C in the middle; Figure 16 This is a schematic diagram of the structure of the first plate and the first support device in a first state according to an embodiment of this application; Figure 17 This is a structural schematic diagram of the first plate and the first support device in a second state according to an embodiment of this application; Figure 18 This is an exploded view of the structure of the first plate and the first support device in one embodiment of this application; Figure 19 This is a schematic diagram of the structure of the first support device in one embodiment of this application.

[0015] Explanation of reference numerals in the attached drawings: 300, cardboard; 310, base plate; 320, front support plate; 330, rear support plate; 340, front flap; 350, rear flap; 360, side wing; 370, flap; 380, top cover; 390, closing plate; 100, folding guide frame; 110, transverse support slide rail; 120, longitudinal support slide rail; 130, connecting plate; 131, first plate; 132, second plate; 200, support structure. ; 210, First support device; 211, Guide surface; 212, First insertion post; 213, Second fixing hole; 214, Bolt; 141, First connecting hole; 142, Second connecting hole; 143, Third connecting hole; 215, First end face; 144, Second end face; 230, Positioning element; 146, Arc groove; 222, Positioning hole; 221, Rotating shaft; 145, Rotating hole; a, Included angle; h, Height of the cardboard box. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0017] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0018] The accompanying drawings illustrate one or more examples of the present invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the present invention. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0019] This embodiment provides a cardboard box folding mechanism, mainly used for folding airplane boxes to improve folding efficiency and ensure folding effect. The following description uses an airplane box as the folding object of this cardboard box folding mechanism.

[0020] In this embodiment, as Figure 1-2 As shown, the airplane box is rectangular and is formed by folding cardboard 300. Cardboard 300 includes: a base plate 310, a front support plate 320, a rear support plate 330, a front flap 350, a rear flap 340, side wings 360, flaps 370, a top cover 380, and a closing plate 390.

[0021] Specifically, the front support plate 320 and the rear support plate 330 are respectively connected to the two long sides of the base plate 310. The front flap 350, rear flap 340, side wings 360, and flaps 370 are each provided in pairs, with the two side wings 360 respectively connected to the two short sides of the base plate 310. The two front flaps 350 are respectively connected to the two short sides of the front support plate 320, and the two rear flaps 340 are respectively connected to the two short sides of the rear support plate 330. The other long side of the rear support plate 330 and one long side of the cover plate 390 are respectively connected to the two long sides of the top cover 380. The two flaps 370 are respectively connected to the two short sides of the top cover 380. Fold lines are provided at the points where the base plate 310, front support plate 320, rear support plate 330, front flap 350, rear flap 340, side wings 360, flaps 370, top cover 380, and closing cover plate 390 are connected to each other, so as to bend during folding.

[0022] like Figure 3-9 As shown, the cardboard box folding mechanism includes a folding guide frame 100 and a support structure 200 connected to the folding guide frame 100. Multiple support structures 200 are provided, distributed around the periphery of the folding guide frame 100 to form a quadrilateral folding area. In use, the cardboard 300 to be folded is placed on top of the support structure 200, and the cardboard 300 is pressed down so that the base plate 310 falls into the folding area. The remaining portion of the cardboard 300 is folded under the guidance of the support structure 200, thereby improving the folding efficiency of the cardboard 300.

[0023] In one embodiment, the guide frame 100 includes two parallel transverse support rails 110 and two parallel longitudinal support rails 120. The two transverse support rails 110 and the two longitudinal support rails 120 are located in two parallel planes, and the transverse support rails 110 and the longitudinal support rails 120 intersect each other to form multiple intersections. Each intersection is provided with a connecting plate 130, and each connecting plate 130 is connected to the corresponding transverse support rail 110 and longitudinal support rail 120. The connecting plate 130 includes a first plate body 131 and a second plate body 132. In this embodiment, both the first plate body 131 and the second plate body 132 are located between the transverse support rails 110 and the longitudinal support rails 120.

[0024] In one embodiment, the support structure 200 includes a first support device 210 movably connected to the first plate 131. The upper end surface of the first support device 210 is provided with a guide surface 211 extending toward the folding area. The first support device 210 is capable of relative movement with the first plate 131, such that the first support device 210 has a first state and a second state, and can switch between the first state and the second state.

[0025] Specifically, when the first support device 210 is in the first state, it is parallel to the transverse support rail 110, adapting to boxes with a significant height difference between the box height h and the first support device 210, ensuring a good folding effect. When the first support device 210 is in the second state, the angle α between it and the transverse support rail 110 is an acute angle, adapting to boxes with a height h close to or greater than the first support device 210. The first support device 210 can switch between the first and second states to adapt to boxes of different heights for folding, improving the adaptability of the box folding device and ensuring a good box folding effect.

[0026] In this embodiment, it should be noted that the difference between the height h of the cardboard box and the height of the first support device 210 is large, which means that the difference between the height h of the cardboard box and the height of the first support device 210 is greater than 6cm.

[0027] When the first support device 210 is in the first state, and the height h of the cardboard box (i.e., the height of the rear support plate 330) is lower than or close to the height of the first support device 210, the upper end of the first support device 210 will abut against the lower edge of the flap 370 of the cardboard box 300 during the downward folding process, causing the cardboard box 300 to be unable to continue to be pressed down, ultimately preventing the cardboard box from being folded to the preset folding state. In this case, using the cardboard box folding mechanism of this application, the user can switch the first support device 210 from the first state to the second state. In this way, the guide surface 211 at the upper end of the first support device 210 can guide the flap 370 of the cardboard box 300 to one side of the folding area, thereby ensuring that the cardboard box 300 can continue to be pressed down and folded until the preset folding state is reached.

[0028] On the contrary, when the first support device 210 is in the second state, and the height h of the cardboard box (the width of the rear support plate 330) is less than the height of the first support device 210 and the height difference is large, during the downward folding process of the cardboard 300, the flap 370 of the cardboard 300 will get stuck on the rear side of the first support device 210 (i.e., the side of the first support device 210 away from the folding area along the transverse support rail 110). The flap 370 of the cardboard 300 will pull the top cover 380, causing the cardboard 300 to tear at the fold line between the top cover 380 and the rear support plate 330, thus damaging the cardboard 300. At this time, the user can switch the first support device 210 from the second state to the first state, so that the distance between the flap 370 of the cardboard 300 and the top cover 380 is smaller, thereby avoiding the flap 370 of the cardboard 300 pulling the top cover 380 and causing the cardboard 300 to tear, achieving a good folding effect.

[0029] In one embodiment, such as Figure 10-13 As shown, the bottom of the first support device 210 is provided with a first insertion post 212 and a second fixing hole 213. The first plate 131 is provided with a first connecting hole 141, a second connecting hole 142, and a third connecting hole 143. When the first insertion post 212 at the bottom of the first support device 210 is inserted into the first connecting hole 141, and the second fixing hole 213 is connected to the second connecting hole 142 by bolts 214, the first support device 210 is fixedly installed on the first plate 131, and the first support device 210 is in a first state, that is, the first support device 210 is parallel to the transverse support slide rail 110. When the first insertion post 212 is inserted into the second connecting hole 142, and the second fixing hole 213 is connected to the third connecting hole 143 by bolts 214, the first support device 210 is fixedly installed on the first plate 131, and the first support device 210 is in a second state, and the included angle α between the first support device 210 and the transverse support slide rail 110 is an acute angle. The first support device 210 switches between a first state and a second state by changing its installation position on the first plate 131, so as to adapt to the folding of airplane boxes of different heights and improve the adaptability of the paper box folding mechanism.

[0030] In one embodiment, when the first insertion post 212 is inserted into the second connecting hole 142, and the second fixing hole 213 and the third connecting hole 143 are connected by bolts 214, the included angle α between the first support device 210 and the transverse support slide rail 110 is 45 degrees. This allows the first support structure 200 to provide good bending guidance for the folding of the cardboard box, ensuring a good folding effect. Of course, in other embodiments, when the first insertion post 212 is inserted into the second connecting hole 142, and the second fixing hole 213 and the third connecting hole 143 are connected by bolts 214, the included angle α between the first support device 210 and the transverse support slide rail 110 can also be set to other angles, such as 15 degrees, 25 degrees, 35 degrees, 55 degrees, 60 degrees, 65 degrees, etc., to ensure good bending guidance of the first support structure 200 and achieve a good folding effect.

[0031] In one embodiment, the first support device 210 is provided with a first end face 215, and the first plate 131 is provided with a second end face 144. When the first insertion post 212 is inserted into the second connecting hole 142, and the second fixing hole 213 and the third connecting hole 143 are fixedly connected by bolts 214, the first end face 215 and the second end face 144 abut against each other to ensure the stability of the first support device 210. At the same time, during the installation process, the first end face 215 of the first support device 210 abuts against the second end face 144 on the first plate 131, thereby quickly positioning the first support device 210 and the first plate 131, so as to facilitate the insertion of the first insertion post 212 into the second connecting hole 142, and the alignment of the second fixing hole 213 and the third connecting hole 143, thereby realizing the rapid installation of the first support device 210 and the first plate 131.

[0032] In one embodiment, the second connecting hole 142 and the third connecting hole 143 are configured as strip-shaped holes extending parallel to the transverse support slide rail 110. When the first insertion post 212 is inserted into the second connecting hole 142, the first insertion post 212 can slide within the second connecting hole 142 and select the position where the second fixing hole 213 is fixed on the third connecting hole 143 to adjust the position of the first support device 210 mounted on the first plate 131, so that the guide surface 211 on the first support device 210 can achieve a good guiding folding effect on the pressed cardboard 300, ensuring a good folding effect for the airplane box.

[0033] In one embodiment, the first support device 210 has multiple second states, and the included angle α between the first support device 210 and the transverse support slide rail 110 corresponding to the multiple second states is different. The first support device 210 can switch between the first state and the multiple second states to adapt to airplane boxes of different heights and achieve a good folding effect.

[0034] In one embodiment, such as Figure 14-19As shown, the bottom end of the first support device 210 near the folding area is rotatably connected to the first plate 131. The first support device 210 can be rotated to adjust its relative position to the transverse support slide rail 110, allowing it to switch between a first state and a second state to accommodate boxes of different heights, improving the adaptability of the box folding mechanism and ensuring a good box folding effect. Specifically, a rotating shaft 221 is provided at the bottom end of the first support device 210 near the folding area, and a rotating hole 145 is provided on the first plate 131. The rotating shaft 221 of the first support device is inserted into the rotating hole 145, realizing the rotatable connection between the first support device 210 and the first plate 131. In use, switching between the first and second states can be achieved by rotating the first support device 210, making the state adjustment of the first support device 210 more intuitive, the adjustment process more convenient and faster, the adjustment efficiency of the box folding mechanism higher, and the user experience better.

[0035] In one embodiment, a positioning member 230 is provided between the first support device 210 and the first plate 131. The positioning member 230 can restrict the rotation between the first support device 210 and the first plate 131, so that the position of the first support device 210 remains stable and the position change of the first support device 210 during the folding process does not affect the folding effect of the paper box.

[0036] In one embodiment, an arc-shaped groove 146 is provided on the first plate 131, and a positioning hole 222 is provided at the bottom of the first support device 210. A positioning element 230 is provided as a positioning bolt 214. The positioning bolt 214 passes through the arc-shaped groove 146 and connects to the positioning hole 222 to restrict rotation between the first support device 210 and the first plate 131. When the first support device 210 rotates, the positioning hole 222 is always located above the arc-shaped groove 146, allowing the positioning bolt 214 to connect to the positioning hole 222 at different positions on the arc-shaped groove 146, thus positioning the first support device 210. The positioning bolt 214 can position the first support device 210 in a first state and a second state to adapt to different sizes of aircraft boxes, resulting in better adaptability.

[0037] In one embodiment, the connecting plate 130 is fixedly connected to the corresponding transverse support slide rail 110 and longitudinal support slide rail 120 respectively to ensure the structural stability of the folding guide bottom frame 100 and achieve a good paper box folding effect.

[0038] In one embodiment, the connecting plate 130 is slidably connected to the corresponding transverse support slide rail 110 and longitudinal support slide rail 120, and the connecting plate 130 can be selectively fixed on the corresponding transverse support slide rail 110 and longitudinal support slide rail 120. With this configuration, the size of the quadrilateral formed by the transverse support slide rail 110 and longitudinal support slide rail 120 can be adjusted by changing the position of the four connecting plates 130 on the corresponding transverse support slide rail 110 and longitudinal support slide rail 120, thereby adjusting the size of the folding area to accommodate different sized aircraft boxes.

[0039] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: The first support device 210 of the cardboard box folding mechanism can move relative to the first plate 131, so that the first support device 210 has a first state and a second state, and can switch between the first state and the second state to adapt to the folding of different sizes of cardboard boxes, thereby improving the adaptability of the cardboard box folding device and ensuring a good folding effect for cardboard boxes.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A paper box folding mechanism, characterized in that, It includes a folding guide bottom frame and a support structure connected to the folding guide bottom frame. Multiple support structures are provided, and the multiple support structures enclose a folding area. The folding guide frame includes two parallel transverse support slide rails and two parallel longitudinal support slide rails. The two transverse support slide rails and the two longitudinal support slide rails are located in two parallel planes and intersect each other to form multiple intersections. Each intersection is provided with a connecting plate, and each connecting plate is connected to the corresponding transverse support slide rail and the corresponding longitudinal support slide rail. The connecting plate includes a first plate body and a second plate body. The support structure includes a first support device that is movably connected to the first plate. The upper end surface of the first support device is provided with a guide surface extending toward the folding area. The first support device can move relative to the first plate, so that the first support device can switch between a first state and a second state. When the first support device is in the first state, the first support device is parallel to the transverse support slide rail; When the first support device is in the second state, the angle formed between the first support device and the transverse support slide rail is an acute angle.

2. The paper box folding mechanism according to claim 1, characterized in that, The bottom of the first support device is provided with a first insertion post and a second fixing hole; the first plate is provided with a first connecting hole, a second connecting hole and a third connecting hole; When the first plug-in post is inserted into the first connecting hole, and the second fixing hole is fixedly connected to the second connecting hole by bolts, the first support device is in the first state; When the first plug is inserted into the second connecting hole, and the second fixing hole is fixedly connected to the third connecting hole by bolts, the first support device is in the second state.

3. The paper box folding mechanism according to claim 2, characterized in that, When the first plug is inserted into the second connecting hole, and the second fixing hole and the third connecting hole are fixedly connected by bolts, the included angle between the first support device and the transverse support slide rail is 45 degrees.

4. The paper box folding mechanism according to claim 2, characterized in that, The second and third connecting holes are configured as strip-shaped holes extending parallel to the direction of the transverse support slide rail; When the first plug is inserted into the second connecting hole, the first plug can slide within the second connecting hole and select the position where the second fixing hole is fixed on the third connecting hole, so as to adjust the position of the first support device installed on the first plate.

5. The paper box folding mechanism according to claim 2, characterized in that, The first support device is provided with a first end face, and the first plate is provided with a second end face; When the first plug is inserted into the second connecting hole, and the second fixing hole and the third connecting hole are fixedly connected by bolts, the first end face and the second end face abut against each other.

6. The paper box folding mechanism according to claim 1, characterized in that, The bottom end of the first support device near the folding area is rotatably connected to the first plate to adjust the relative position between the first support device and the transverse support slide rail, so that the first support device can switch between a first state and a second state.

7. The paper box folding mechanism according to claim 6, characterized in that, A positioning element is provided between the first support device and the first plate to restrict the rotation between the first support device and the first plate.

8. The paper box folding mechanism according to claim 7, characterized in that, The first plate is provided with an arc-shaped groove, and the bottom of the first support device is provided with a positioning hole; when the first support device rotates, the positioning hole is always located above the arc-shaped groove. The positioning element passes through the arc-shaped groove and is connected to the positioning hole to restrict the rotation between the first support device and the first plate.

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