Paper box folding mechanism

Abstract

The utility model provides a carton folding mechanism which comprises a folding frame and a supporting structure, the supporting structure is connected with the folding frame, the supporting side of the supporting structure extends towards the side away from the folding frame, and a folding area is defined by the supporting structure. The supporting structure comprises a supporting device, a fixed part of the supporting device is fixedly connected with the folding frame, and a supporting part of the supporting device can rotate relative to the fixed part; in the paper box folding process, when the paper box is pressed to the preset position towards the folding area, the supporting part of the supporting device turns over towards the outer side of the folding area. According to the carton folding mechanism, the supporting part capable of rotating relative to the folding frame is arranged on the supporting device, so that the carton can be conveniently folded, the quality of the formed carton is improved, a product to be packaged can be directly put into the carton for boxing operation, and the folding efficiency of the carton is effectively improved; hindrance and difficulty when the paper box is taken out can be reduced, and the folded paper box can be taken out easily.

Description

Technical Field

[0001] The utility model relates to the technical field of paper box forming, in particular to a paper box folding mechanism. Background Art

[0002] Airplane boxes are a branch of cardboard boxes. They are made of corrugated paper and have a very high cost-effectiveness. They are widely used in product packaging and express packaging.

[0003] The related art carton folding mechanism includes a folding frame and a support structure mounted on the folding frame. During the folding process of the cardboard into a carton, the support structure is used to support the portion of the cardboard to be folded, thereby folding the cardboard into the carton. Typically, multiple support structures are provided to support and fold different portions of the carton. The support structure for supporting the folding of the carton's flap is fixedly connected to the folding frame. During the folding process, the support structure supporting the flap can easily penetrate the gap between the flap and the side wings, which not only affects folding efficiency but also easily damages the carton. Furthermore, the support structure supporting the flap can also hinder the removal of the folded carton, affecting the removal of the formed carton. Utility Model Content

[0004] The purpose of the utility model is to provide a carton folding mechanism, which, by providing a supporting part that can rotate relative to the folding frame on the supporting device, can not only facilitate the folding of the carton and improve the quality of the aircraft box after forming, but also can directly put the product to be packaged into the carton for boxing operation, effectively improving the folding efficiency of the carton, and can also reduce the obstacles and difficulties when taking out the carton, which is conducive to taking out the folded carton.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a carton folding mechanism, comprising: a folding frame and a supporting structure, wherein the supporting structure is connected to the folding frame, and the supporting side of the supporting structure extends away from one side of the folding frame, and the supporting structure is arranged to form a folding area; the supporting structure comprises a supporting device, the fixed part of the supporting device is fixedly connected to the folding frame, and the supporting part of the supporting device can rotate relative to the fixed part; during the carton folding process, when the carton is pressed toward the folding area to a preset position, the supporting part of the supporting device flips toward the outside of the folding area.

[0006] In one embodiment, the paper box has a swing cover, and the support device is used to support and assist the swing cover in folding, the fixed part includes a mounting seat, and the support part includes a first support rod; the support device also includes: a power source, including a main body part and a power output part connected to the main body part, the main body part is fixedly assembled with the folding frame, the mounting seat is arranged on a side of the power output part away from the main body part and is fixedly assembled with the folding frame; and a transmission assembly, rotatably assembled on the mounting seat, the end of the transmission assembly close to the main body part is connected to the power output part, the first support rod is fixedly connected to the end of the transmission assembly away from the power source, and the first support rod can move synchronously with the transmission assembly.

[0007] In one embodiment, the support device further includes: a sensor and a control box, wherein the sensor is mounted on the folding frame and connected to the control box via a wire, and the control box is connected to the power source; during the carton folding process, when the sensor detects that there is a carton in the folding area, the control box controls the power source to drive the first support rod to flip outward.

[0008] In one embodiment, the transmission assembly includes: a transmission shaft, which is movably arranged through the mounting seat; a connecting member, one end of which is fixedly connected to the power output part, and the other end of which is fixedly connected to the end of the transmission shaft close to the power source; and a fixing member, which is sleeved on the end of the transmission shaft away from the connecting member and fixedly connected to the transmission shaft, and the transmission shaft is fixedly connected to the first support rod through the fixing member, so that the first support rod can rotate synchronously with the transmission shaft.

[0009] In one embodiment, the transmission assembly includes: a transmission shaft, which is movably passed through the mounting seat; a guide seat, which is fixedly mounted on the folding frame, and a guide groove is provided on the guide seat; a transmission rack, which is slidably mounted in the guide groove, and the side of the transmission rack close to the power source is fixedly connected to the power output part; a transmission gear, which is sleeved and fixed on one end of the transmission shaft close to the transmission rack, and the transmission gear is engaged with the transmission rack to convert the linear motion of the transmission rack into rotation of the transmission shaft; and a fixing member, which is sleeved on one end of the transmission shaft away from the transmission gear and fixedly connected to the transmission shaft, and the transmission shaft is fixedly connected to the first support rod through the fixing member, so that the first support rod can rotate synchronously with the transmission shaft.

[0010] In one embodiment, the support structure also includes a first support assembly fixedly assembled with the folding frame, the first support assembly is arranged on the side of the first support rod away from the power source, the first support assembly includes a first support seat, and the end of the transmission assembly away from the power source passes through the first support rod and is rotatably assembled with the side of the first support seat close to the folding frame.

[0011] In one embodiment, the folding frame includes: two first slide rails parallel to each other and two second slide rails parallel to each other, the two first slide rails and the two second slide rails are respectively located in two parallel planes and intersect with each other to form a plurality of intersections; each intersection is provided with a connecting plate, each of the connecting plates is located between the first slide rail and the second slide rail, each of the connecting plates is slidably connected to the corresponding first slide rail and second slide rail, and each of the connecting plates can be selectively fixed in position on the first slide rail and the second slide rail; the fixed part of the support device is fixedly connected to the connecting plate.

[0012] In one embodiment, the connecting plate includes: a first plate body and a second plate body, the first plate body and the second plate body are arranged opposite to each other, the fixed part of the support device and the first support assembly are fixedly connected to the first plate body, and can move synchronously with the plate body; the support structure also includes a second support assembly installed on the second plate body, the second support assembly includes: a second support seat, a rotating pressure member and a rotating connecting member; the second support seat is fixedly connected to the second plate body, and the rotating pressure member is installed on the second support seat and can rotate relative to the second support seat; the rotating connecting member has a first end and a second end, the first end is connected to the second support seat, and the second end is connected to the rotating pressure member; during the folding process of the carton, when the carton is pressed toward the folding area, at least a part of the carton can drive the rotating pressure member to rotate, so that the rotating pressure member is pressed against the outer wall of the carton, and pushes the part of the carton to be folded toward the side close to the first plate body.

[0013] In one embodiment, the rotating pressing member includes: a driving portion, at least a portion of which protrudes from the end surface of the second support seat close to the first plate body; a pressing portion, connected to the driving portion, and the pressing portion has a flattening end surface. Under the drive of the driving portion, the flattening end surface is pressed against the outer wall of the paper box and pushes the part to be folded of the paper box toward the side close to the first plate body; and a counterweight portion, connected to the side of the pressing portion away from the driving portion. After the paper box is folded and taken out, the counterweight portion resets the rotating pressing member by its own gravity.

[0014] In one embodiment, the support structure also includes: a third support component, which is slidably mounted on the first slide rail and / or the second slide rail, and the third support component can selectively fix its position on the corresponding first slide rail or the second slide rail; a fourth support component, which is fixedly mounted on the first plate body and can move synchronously with the first plate body; and a fifth support component, which is fixedly mounted on the second plate body and can move synchronously with the second plate body.

[0015] The invention can be seen from the analysis that the utility model discloses a carton folding mechanism, which provides a supporting part that can rotate relative to the folding frame on the supporting device. During the folding process of the carton, the supporting part of the supporting device can be turned outward after assisting the rear swing cover to fold, so that the supporting end of the supporting part is turned to a position away from the folding area A. The supporting device provided in this way can, on the one hand, thicken the supporting part, thereby reducing the situation of inserting into the gap between the rear swing cover and the side wings, and ensuring that the carton can be smoothly pressed down and folded; on the other hand, it can facilitate the folding of the rear swing cover, side wings and rear support plate into place, thereby improving the quality of the carton after forming; in addition, after the supporting part is turned outward, the carton can directly fold the flaps, top cover and closing cover together in the folding mechanism, and the product to be packaged can be directly placed in the carton and then folded during the folding process, so that the product boxing operation can be directly completed, effectively improving the folding efficiency of the carton. At the same time, after the supporting part is turned outward, it can also reduce the obstacles and difficulties when taking out the carton, which is conducive to taking out the folded carton. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0017] Figure 1 This is a structural diagram of a carton folding mechanism and paperboard in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the first structure of a carton folding mechanism in one embodiment of the present utility model;

[0019] Figure 3 is a schematic diagram of the carton folding mechanism in the related art of this embodiment after the carton is pressed down;

[0020] Figure 4 It is a structural diagram of the related art of the present embodiment when the supporting portion of the carton folding mechanism is stuck in the gap between the rear swing cover and the side wings;

[0021] Figure 5 This is a structural diagram of the carton folding mechanism in the present invention after the carton is pressed down;

[0022] Figure 6 This is a second structural diagram of a carton folding mechanism in one embodiment of the present invention;

[0023] Figure 7 It corresponds to Figure 6 A top view of

[0024] Figure 8 This is a schematic diagram of a first structure of a first plate body in an embodiment of the present utility model;

[0025] Figure 9 This is a schematic diagram of a second structure of the first plate body in one embodiment of the present utility model;

[0026] Figure 10 This is a schematic diagram of the first structure of the second plate body in one embodiment of the present utility model;

[0027] Figure 11 This is a schematic diagram of a second structure of the second plate body in one embodiment of the present utility model;

[0028] Figure 12 It corresponds to Figure 6 Enlarged view of detail B;

[0029] Figure 13 This is a structural diagram of the support device, the first plate, the first slide rail and the second slide rail in one embodiment of the present invention;

[0030] Figure 14 This is an exploded view of the supporting device, the first plate, the first slide rail, and the second slide rail in one embodiment of the utility model;

[0031] Figure 15 This is an exploded view of a support device in one embodiment of the present invention;

[0032] Figure 16 This is a structural diagram of a carton folding mechanism in another embodiment of the present invention;

[0033] Figure 17 This is a structural diagram of a support device, a first plate, a first slide rail, and a second slide rail in another embodiment of the present invention;

[0034] Figure 18 This is an exploded view of the support device, the first plate, the first slide rail, and the second slide rail in another embodiment of the present invention;

[0035] Figure 19 This is an exploded view of a support device in another embodiment of the present invention;

[0036] Figure 20 This is a structural diagram of the second support assembly, the first plate, the first slide rail, and the second slide rail in one embodiment of the present invention;

[0037] Figure 21 It is a schematic diagram of the second support assembly in a natural state in one embodiment of the present utility model;

[0038] Figure 22 1 is a schematic diagram of the second support assembly in a flattened state in one embodiment of the present invention;

[0039] Figure 23 It is an exploded view of the second support assembly in one embodiment of the present utility model.

[0040] Description of reference numerals:

[0041] 1. Folding frame; 11. First slide rail; 12. Second slide rail; 13. Connecting plate; 131. First plate; 1310. First limiting groove; 1311. First ridge; 1312. Second ridge; 1313. Second limiting strip; 132. Second plate; 1321. Third ridge; 1322. Fourth ridge; 1323. Third limiting strip; 2. Support structure; 21. Support device; 211. Power source; 2111. Main body; 21 12. Power output section; 212. Mounting seat; 2121. First limiting strip; 213. Transmission assembly; 2130. Guide groove; 2131. Transmission shaft; 2132. Connector; 2133. Fixing member; 2134. Guide seat; 2135. Transmission rack; 2136. Transmission gear; 214. First support rod; 2140. Mounting hole; 2141. Mounting portion; 2142. Avoidance opening; 215. Sensor; 216. Control box; 22. First support assembly; 221. First support seat; 2210. Second limiting groove; 23. Second support assembly; 231. Second support seat; 2310. Third limiting groove; 232. Rotating pressing member; 2320. Flattening end surface; 2321. Driving unit; 2322. Pressing unit; 2323. Counterweight unit; 233. Rotating connecting member; 234. Rolling member; 24. Third support assembly; 241. Third support seat; 25. Fourth support assembly ; 251. Fourth support seat; 252. Rotating assembly; 253. Second support rod; 254. Support column; 255. First limiter; 26. Fifth support assembly; 261. Fifth support seat; 27. Sixth support assembly; 271. Second limiter 3. Cardboard; 31. Bottom plate; 32. Front support plate; 33. Rear support plate; 34. Front rocker cover; 35. Rear rocker cover; 36. Side wings; 37. Flaps; 38. Top cover; 39. Closing cover; 4. Wires. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with examples. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present invention encompass such modifications and variations as come within the scope of the appended claims and their equivalents.

[0043] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected", "connected", and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and the description have been used to refer to like or similar 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 position or importance of individual components.

[0045] See also Figure 1 This embodiment relates to a carton folding mechanism, which is mainly used to fold an airplane box, simplify the folding operation of the airplane box, and improve the folding efficiency of the airplane box. Next, this embodiment describes the airplane box as the folding object of the carton folding mechanism.

[0046] See also Figures 1 to 7 In one embodiment, the carton folding mechanism includes a folding frame 1 and a support structure 2. The support structure 2 is connected to the folding frame 1, and the supporting side of the support structure 2 extends away from the folding frame. It should be noted that the folding frame 1 and the support structure 2 enclose a folding area A. To fold the carton, simply place the carton on the support structure 2 and press it into the folding area A. The support and guidance of the support structure 2 complete the folding operation.

[0047] See also Figure 1 In this embodiment, the airplane box is in the shape of a rectangular parallelepiped and is formed by folding a cardboard 3, wherein the cardboard 3 includes: a bottom plate 31, a front support plate 32, a rear support plate 33, a front swing cover 34, a rear swing cover 35, side wings 36, flaps 37, a top cover 38 and a closing cover 39.

[0048] Specifically, the front support plate 32 and the rear support plate 33 are respectively connected to the two long sides of the base plate 31. The front flap 34, the rear flap 35, the side wings 36, and the flap 37 are each provided in pairs, with the two side wings 36 respectively connected to the two short sides of the base plate 31. The two front flaps 34 are respectively connected to the two short sides of the front support plate 32, and the two rear flaps 35 are respectively connected to the two short sides of the rear support plate 33. The other long side of the rear support plate 33 and one long side of the closing cover 39 are respectively connected to the two long sides of the top cover 38. The two flaps 37 are respectively connected to the two short sides of the top cover. Fold lines are provided at the locations where the base plate 31, the front support plate 32, the rear support plate 33, the front flap 34, the rear flap 35, the side wings 36, the flap 37, the top cover 38, and the closing cover 39 connect to each other to facilitate bending during the folding process.

[0049] Please continue reading Figures 1 to 7 In one embodiment, the folding frame 1 includes: a first slide rail 11, a second slide rail 12 and a connecting plate 13. The first slide rail 11 is provided with two and parallel to each other, and the second slide rail 12 is also provided with two and parallel to each other. The two first slide rails 11 and the two second slide rails 12 are respectively located in two parallel planes. The two first slide rails 11 and the two second slide rails 12 intersect with each other to form a plurality of intersections, and each intersection is provided with a connecting plate 13. Each connecting plate 13 is located between the first slide rail 11 and the second slide rail 12. Each connecting plate 13 is slidably connected to the first slide rail 11 and the second slide rail 12, and each connecting plate 13 can selectively fix its position on the first slide rail 11 and the second slide rail 12.

[0050] It should be noted that the connecting plate 13 is slidably connected to the first slide rail 11 and the second slide rail 12, so that the carton folding mechanism can adjust the size of the quadrilateral enclosed between the first slide rail 11 and the second slide rail 12 by adjusting the corresponding positions of the connecting plate 13 on the first slide rail 11 and the second slide rail 12, thereby adjusting the folding area A, so that the carton folding mechanism can assist in folding cartons of different sizes, thereby improving the adaptability of the carton folding mechanism.

[0051] In one embodiment, the connecting plate 13 includes a first plate 131 and a second plate 132, which are arranged opposite each other. In this embodiment, four connecting plates 13 are provided at the intersection, corresponding to four connecting plates 13. Two of the first plates 131 and two of the second plates 132 are provided.

[0052] See also Figure 2 , Figure 8 and Figure 9 In one embodiment, the two first slide rails 11 and the two second slide rails 12 are both made of aluminum profiles, and the two first slide rails 11 and the two second slide rails 12 are both provided with slide grooves. Two mutually parallel first ridges 1311 are protruding from the end surfaces of the two first plates 131 close to the first slide rail 11, and a first guide channel is defined between the two mutually parallel first ridges 1311. A portion of the first slide rail 11 is slidably installed in the first guide channel and can be fixed in the position after sliding by the support structure 2. Two mutually parallel second ridges 1312 are protruding from the end surfaces of the two first plates 131 close to the second slide rail 12, and a second guide channel is defined between the two mutually parallel second ridges 1312. A portion of the second slide rail 12 is slidably installed in the second guide channel and can be fixed in the position after sliding by fastening screws.

[0053] See also Figure 2 , Figure 10 and Figure 11 Similarly, two parallel third ridges 1321 are protruding from the end surfaces of the two second plates 132 near the first slide rail 11. A third guide channel is defined between the two parallel third ridges 1321. The other portion of the first slide rail 11 is slidably mounted within the third guide channel and can be secured in its sliding position by the support structure 2. Two parallel fourth ridges 1322 are protruding from the end surfaces of the two second plates 132 near the second slide rail 12. A fourth guide channel is defined between the two parallel fourth ridges 1322. The other portion of the second slide rail 12 is slidably mounted within the fourth guide channel and can be secured in its sliding position by fastening screws.

[0054] In this embodiment, the two first plates 131 are located below the same first slide rail 11 and above two different second slide rails 12. The two second plates 132 are also located below another first slide rail 11 and above two different second slide rails 12. In other embodiments, the positions of the first and second slide rails 11, 12 can be interchanged, while the placement and installation of the other structures remain unchanged.

[0055] See also Figure 1 、 Figure 2 and Figure 5 In one embodiment, the support structure 2 includes a support device 21, a fixed portion of the support device 21 is fixedly connected to the folding frame 1, and the support portion of the support device 21 can rotate relative to the folding frame 1 so as to be turned outward when the aircraft box is folded into shape.

[0056] See also Figure 3 and Figure 4 It should be noted that in the related art, the support device 21 is fixedly assembled with the folding frame 1. When the cardboard 3 is folded into the airplane box, the bottom plate 31 is pressed down to move the cardboard 3 into the folding area A. At this time, under the support of the support device 21, the rear flap 35 is assisted in folding. In order to reduce the gap at the corner a of the folded airplane box and prevent the rear flap 35 from being higher than the fold line position of the side wings 36 due to the end being tilted, the support part of the support device 21 (i.e., the first support rod 214 below) is thinned. However, the thinned support part of the support device 21 is very easy to be inserted into the gap between the rear flap 35 and the side wings 36, resulting in the inability to press the airplane box downward (such as Figure 4 (as shown), the folding operation of the aircraft box cannot be completed; at the same time, the support portion of the fixed support device 21 will also hinder the folding of the flaps 37, resulting in the flaps 37, top cover 38 and closing cover 39 being unable to fold further. If further folding is required, the aircraft box must be removed and folded. In this case, during the removal of the aircraft box, the support portion will also abut against the flaps 37, hindering the removal operation of the aircraft box and making it difficult to remove the aircraft box. Moreover, the outer wall of the aircraft box is easily scratched by the support portion during the removal process, causing scratches on the outer wall of the aircraft box. It can be seen that the fixed assembly of the support device 21 and the folding frame 1 is not conducive to the folding of the aircraft box. It should be noted that the dotted lines in the drawings represent the fold lines of the cardboard 3.

[0057] See also Figure 4In this embodiment, the supporting portion of the supporting device 21 is configured to be rotatable relative to the folding frame 1. During the downward pressing process of the cardboard 3, the supporting portion of the supporting device 21 can be turned outward after assisting the flap 35 to fold, so that the supporting end of the supporting portion is turned to a position away from the folding area A. The supporting device 21 thus configured can, on the one hand, thicken the supporting portion, thereby reducing the possibility of insertion into the gap between the rear flap 35 and the side wings 36, ensuring that the aircraft box can be smoothly pressed down and folded; on the other hand, it can facilitate the folding of the rear flap 35, side wings 36, and rear support plate 33 into place, thereby improving the quality of the aircraft box after formation; in addition, after the supporting portion is turned outward, the aircraft box can directly fold the flap 37, top cover 38, and closing cover plate 39 in the folding mechanism. During the folding process, the product to be packaged can be directly placed in the aircraft box and then folded, thereby directly completing the product boxing operation, effectively improving the folding efficiency of the aircraft box. At the same time, after the supporting portion is turned outward, it can also reduce obstacles and difficulties when removing the aircraft box, thereby facilitating the removal of the folded aircraft box.

[0058] See also Figure 6 、 Figures 12 to 15 In one embodiment, the support device 21 is fixedly mounted on the first plate 131 and can move synchronously with the first plate 131. Specifically, the support device 21 includes: a power source 211, a mounting base 212, a transmission assembly 213 and a first support rod 214.

[0059] Among them, the power source 211 includes a main body 2111 and a power output part 2112 connected to the main body 2111. The main body 2111 is fixedly assembled with the first plate 131 by fastening screws. The mounting seat 212 is arranged on the side of the power output part 2112 away from the main body 2111, and is fixedly assembled with the first plate 131 by fastening screws. The transmission assembly 213 is rotatably assembled on the mounting seat 212. The end of the transmission assembly 213 close to the side of the main body 2111 is fixedly connected to the power output part 2112 and can move synchronously with the power output part 2112. The first support rod 214 is arranged on the side of the mounting seat 212 away from the power source 211. The first support rod 214 is fixedly connected to the end of the transmission assembly 213 away from the power source 211, and can move synchronously with the transmission assembly 213.

[0060] It should be noted that the power source 211 provides power to the transmission assembly 213, causing the transmission assembly 213 and the power output part 2112 to move synchronously, thereby driving the first support rod 214 fixedly mounted on the transmission assembly 213 to rotate, thereby realizing the outward turning of the first support rod 214.

[0061] See also Figure 6 、 Figures 12 to 15In one embodiment, the mounting base 212 is L-shaped, and the bottom of the mounting base 212 is fixed to the first plate 131 by fastening screws. The mounting base 212 is located between the power source 211 and the first support rod 214 to provide support for the transmission assembly 213, ensuring stable transmission of the transmission assembly 213.

[0062] In one embodiment, a first limiting strip 2121 is protruding from the bottom of the mounting base 212, and a first limiting groove 1310 is provided on the first plate 131 at a position corresponding to the first limiting strip 2121. When assembling the mounting base 212 and the first plate 131, the first limiting strip 2121 is first matched with the first limiting groove 1310, and then the mounting base 212 is fixed to the first plate 131 with a fastening screw. This arrangement not only reduces the number of fastening screws used, but also only requires one fastening screw to achieve fixed assembly between the mounting base 212 and the first plate 131, thereby improving the efficiency of assembly and disassembly of the support device 21.

[0063] Please continue reading Figure 6 、 Figures 12 to 15 In one embodiment, the transmission assembly 213 includes: a transmission shaft 2131, a connecting member 2132 and a fixing member 2133. Specifically, a through-hole is provided on the mounting seat 212, and the transmission shaft 2131 is movably passed through the through-hole. One end of the connecting member 2132 is fixedly connected to the power output part 2112, and the other end is fixedly connected to the end of the transmission shaft 2131 close to the power source 211, so that the transmission shaft 2131 can move synchronously with the power output part 2112. The fixing member 2133 is sleeved on the end of the transmission shaft 2131 away from the connecting member 2132 and is fixedly connected to the transmission shaft 2131. The transmission shaft 2131 is fixedly connected to the first support rod 214 through the fixing member 2133, so that the first support rod 214 can rotate synchronously with the transmission shaft 2131, thereby driving the first support rod 214 to turn outward.

[0064] See also Figure 6 、 Figures 16 to 19 In one embodiment, the fixed portion includes a main body 2111 of a power source 211 and a mounting base 212; the supporting portion includes a first support rod 214. The power source 211 is a stepper motor. The stepper motor rotates to drive a transmission shaft 2131, causing the first support rod 214 to rotate outward or return to its original position. A bearing is disposed within the through-hole, through which the transmission shaft 2131 is rotatably assembled with the mounting base 212.

[0065] In one embodiment, the transmission assembly 213 includes: a transmission shaft 2131, a fixing member 2133, a guide seat 2134, a transmission rack 2135, and a transmission gear 2136. Specifically, a through-hole is provided on the mounting seat 212, and the transmission shaft 2131 is movably inserted through the through-hole. The guide seat 2134 is fixedly mounted on the first plate 131 by fastening screws. A guide groove 2130 is provided on the guide seat 2134, and the transmission rack 2135 is slidably mounted in the guide groove 2130. The side of the transmission rack 2135 near the power source 211 is fixedly connected to the power output part 2112. The transmission gear 2136 is sleeved and fixed on the end of the transmission shaft 2131 near the transmission rack 2135. The transmission gear 2136 is engaged with the transmission rack 2135 to convert the linear motion of the transmission rack into rotation of the transmission shaft 2131. The fixing member 2133 is sleeved on the end of the transmission shaft 2131 away from the transmission gear 2136 and is fixedly connected to the transmission shaft 2131. The transmission shaft 2131 is fixedly connected to the first support rod 214 through the fixing member 2133, so that the first support rod 214 can rotate synchronously with the transmission shaft 2131, driving the first support rod 214 to evert.

[0066] In one embodiment, the fixed portion includes the main body 2111 of the power source 211, the mounting base 212, and the guide base 2134; the supporting portion includes the first support rod 214. The power source 211 is a pneumatic cylinder that, through the arrangement of a transmission rack 2135 and a transmission gear 2136, converts linear motion into rotation of the transmission shaft 2131, thereby driving the first support rod 214 to rotate or reposition. A bearing is disposed within the through-hole, through which the transmission shaft 2131 is rotatably assembled with the mounting base 212.

[0067] In one embodiment, the first support rod 214 includes a mounting portion 2141 located on a side of the first support rod 214 near the first plate 131. The mounting portion 2141 is provided with a mounting hole 2140. A portion of the fixing member 2133 is inserted into the mounting hole 2140, while the other portion is fixedly connected to the mounting portion 2141 via four fastening screws. A clearance opening 2142 is provided on the side wall of the mounting portion 2141. The fastening screws pass through the clearance opening 2142 to assemble with the fixing member 2133, thereby fixing the fixing member 2133 to the transmission shaft 2131.

[0068] See also Figures 1 to 7 In one embodiment, the support device 21 further includes a sensor 215 and a control box 216. Specifically, the sensor 215 is mounted on the folding frame 1 and electrically connected to the control box 216 via a wire 4. The control box 216 is connected to the power source 211 via the wire 4. The control box 216 can provide power to the power source 211 and can also control the power source 211 based on the detection results of the sensor 215.

[0069] It should be noted that during the downward pressure of the cardboard 3, when the sensor 215 detects the presence of a cardboard 3 or an airplane box within the folding area A, the control box 216 controls the power source 211 to drive the first support rod 214 outward. Otherwise, the control box 216 brakes the power source 211 to drive the first support rod 214 back to its original position. In this embodiment, the sensor 215 is a photoelectric sensor, and the control box 216 is conventional technology and will not be described in detail in this embodiment.

[0070] Please combine Figures 1 to 7 and Figures 12 to 15 In one embodiment, the support structure 2 also includes a first support assembly 22 fixedly assembled with the folding frame 1. The first support assembly 22 is arranged on the side of the first support rod 214 away from the power source 211. The first support assembly 22 includes a first support seat 221, and the end of the transmission shaft 2131 away from the power source 211 passes through the first support rod 214 and is rotatably assembled with the side of the first support seat 221 close to the first support rod 214. Obviously, the transmission shaft 2131 is rotatably assembled with the mounting seat 212 and the first support seat 221 respectively, which can effectively improve the stability of the transmission process of the transmission shaft 2131 and enable the first support rod 214 to be stably turned outward and reset. In this embodiment, a bearing is provided between the transmission shaft 2131 and the first support seat 221 to improve the smoothness of the rotation of the transmission shaft 2131.

[0071] In one embodiment, a second limiting groove 2210 is provided at the bottom of the first support base 221, and a second limiting bar 1313 is protruding from the first plate 131 to match the second limiting groove 2210. When assembling the first support base 221 and the first plate 131, the second limiting bar 1313 is first matched with the second limiting groove 2210, and then the first support base 221 is fixed to the first plate 131 with a fastening screw. This arrangement not only reduces the number of fastening screws, but also only requires one fastening screw to achieve fixed assembly between the first support base 221 and the first plate 131, thereby improving the efficiency of assembly and disassembly of the first support assembly 22.

[0072] It should be noted that two support devices 21 are provided, as are two first support assemblies 22, corresponding to the support devices 21. The supporting ends of the first support bases 221 are provided with support surfaces that are inclined outward from the folding area A. This not only protects the outer wall of the cardboard 3 but also facilitates folding of the cardboard 3. Furthermore, rollers are provided on the first support assemblies 22 to convert sliding friction between the first support assemblies 22 and the cardboard 3 into rolling friction, protecting the outer wall of the cardboard 3 while enhancing the smoothness of the folding process.

[0073] See also Figure 2 、 Figures 20 to 23In one embodiment, the support structure 2 further includes a second support assembly 23 mounted on the second plate 132 , and the second support assembly 23 includes: a second support seat 231 , a rotating pressing member 232 and a rotating connecting member 233 .

[0074] Specifically, the second support base 231 is fixedly connected to the second plate 132. The rotational pressing member 232 is mounted on the second support base 231 and is rotatable relative to the second support base 231. The rotational connecting member 233 has a first end and a second end. The first end is connected to the second support base 231, and the second end is connected to the rotational pressing member 232. The rotational connecting member 233 is used to achieve rotational assembly between the rotational pressing member 232 and the second support base 231.

[0075] During the folding process of the airplane box, when the cardboard 3 is pressed toward the first slide rail 11 or the second slide rail 12, the cardboard 3 can drive the rotating pressing member 232 to rotate relative to the second support seat 231, so that the rotating pressing member 232 is pressed against the outer wall of the portion to be folded of the cardboard 3, and the portion to be folded of the cardboard 3 is pushed toward the side close to the first plate body 131, so that the portion to be folded of the cardboard 3 is folded into place. It should be noted that in this embodiment, the second support assembly 23 is used to support and fold the front support plate 32, that is, the portion to be folded pressed by the rotating pressing member 232 is the front support plate 32 of the cardboard. Before the airplane box is folded, the rotating pressing member 232 partially protrudes from the second support seat 231 so that it can contact the front support plate 32 during the downward pressing process, thereby driving the rotating pressing member 232 to rotate, pushing the front support plate 32 toward the side wings 36 and flattening it, that is, folding the front support plate 32 into place.

[0076] See also Figure 2 、 Figures 20 to 23 In one embodiment, the second support assembly 23 further includes a rolling member 234 provided on the second support seat 231. Specifically, the rolling member 234 partially protrudes from the end face of the second support seat 231 on the side close to the folding area A, and the rolling member 234 can roll relative to the second support seat 231, thereby converting the sliding friction between the aircraft box and the second support seat 231 during the folding process into rolling friction. Obviously, the provision of the rolling member 234 can, on the one hand, prevent the outer wall of the cardboard 3 from being scratched by the second support seat 231 during the downward pressing process, thereby ensuring the aesthetics of the aircraft box after folding; on the other hand, it can reduce the resistance of the cardboard 3 to the downward pressing, making the folding of the aircraft box smoother. It should be noted that in this embodiment, the rolling member 234 is a roller rotatably assembled on the second support seat 231.

[0077] In one embodiment, the end of the second support seat 231 away from the second plate body 132 is provided with a support surface inclined toward the outside of the folding area A, so that the cardboard 3 can enter the folding area A more easily during the downward pressing process, and the setting of the support surface can better guide the cardboard 3 to enter the folding area A; in addition, the support surface can effectively avoid the situation where the outer wall of the cardboard 3 is damaged due to the end of the second support seat 231 directly abutting the outer wall of the cardboard 3, thereby further ensuring the beauty of the aircraft box after folding.

[0078] Please continue reading Figure 2 、 Figures 20 to 23 In one embodiment, a third limiting groove 2310 is provided at the bottom of the second support base 231, and a third limiting bar 1323 is provided protruding from the second plate 132 to fit with the third limiting groove 2310. When assembling the second support base 231 and the second plate 132, the third limiting bar 1323 is first fitted into the third limiting groove 2310, and then the second support base 231 is fixed to the first slide rail 11 with a single fastening screw. This arrangement not only reduces the number of fastening screws used, but also only requires one fastening screw to achieve fixed assembly between the second support base 231 and the second plate 132, thereby improving the efficiency of assembly and disassembly of the second support assembly 23.

[0079] In one embodiment, the rotating pressing member 232 is used to push the front support plate 32 toward the inside of the folding area A and flatten it. The rotating pressing assembly 232 includes a driving portion 2321 , a pressing portion 2322 and a counterweight portion 2323 .

[0080] Specifically, in a natural state, the driving portion 2321 protrudes from the end surface of the second support seat 231 on the side close to the first plate body 131, so that the cardboard 3 can press the driving portion 2321 during the downward pressing process, thereby causing the driving portion 2321 to rotate relative to the second support seat 231. The pressing portion 2322 is connected to the driving portion 2321. The pressing portion 2322 has a flattening end surface 2320. Under the drive of the driving portion 2321, the pressing portion 2322 rotates, causing the flattening end surface 2320 to abut against the front support plate 32, and pushing the front support plate 32 toward the side close to the first plate body 131, so that the front support plate 32 closes with the side wings 36 after folding. The counterweight portion 2323 is connected to the side of the pressing portion 2322 away from the driving portion 2321. After the aircraft box is folded and taken out, the counterweight portion 2323 resets the rotating pressing member 232 by its own gravity, so as to assist the front support plate 32 to fold into place when the next aircraft box is folded.

[0081] It should be noted that the rotating pressing member 232 can be switched between a natural state and a flattened state by rotating. In the natural state, the counterweight portion 2323 abuts against the first slide rail 11, and the driving portion 2321 partially protrudes from the second support seat 231. In the flattened state, the driving portion 2321 abuts against the second plate 132, and the flattened end surface 2320 is substantially vertical and abuts against the outer wall of the cardboard 3.

[0082] It should also be noted that when the rotating pressing member 232 is in its natural state, the counterweight portion 2323 is acted upon by gravity, causing the driving portion 2321 to partially protrude from the second support seat 231 inside the first folding area A. This allows the cardboard 3 to abut against the driving portion 2321 during the folding process, causing the driving portion 2321 to rotate, thereby driving the pressing portion 2322 and the counterweight portion 2323 to rotate synchronously. During the rotation of the rotating pressing member 232, the flattened end surface 2320 gradually comes into contact with the outer wall of the front support plate 32, gradually pushing the front support plate 32 inward of the folding area A, so that the front support plate 32 remains in a substantially vertical position after the aircraft box is folded, facilitating the flipping and folding of the side wings 36.

[0083] Please return Figures 1 to 7 In one embodiment, the support structure 2 further includes: a third support assembly 24 , a fourth support assembly 25 and a fifth support assembly 26 .

[0084] Specifically, a plurality of third support assemblies 24 are provided, each slidably mounted on the first slide rail 11 and the second slide rail 12. The plurality of third support assemblies 24 can be selectively fixed in position on the corresponding first slide rail 11 or second slide rail 12. The fourth support assembly 25 is fixedly mounted on the first plate 131 and is capable of moving synchronously with the first plate 131. The fifth support assembly 26 is fixedly mounted on the second plate 132 and is capable of moving synchronously with the second plate 131.

[0085] In one embodiment, four third support assemblies 24 are provided: one third support assembly 24 is located midway between the two first plates 131; one third support assembly 24 is located midway between the two second plates 132; and two third support assemblies 24 are located midway between the first plate 131 and the second plate 132. Obviously, the user can adjust the specific location and number of third support assemblies 24 as needed. In this embodiment, the third support assembly 24 includes a third support base 241, which is connected to the first slide rail 11 or the second slide rail 12 via bolts. The third support base 241 is fixed or slidable by tightening or loosening the bolts, thereby achieving position adjustment.

[0086] Please continue reading Figures 1 to 7In one embodiment, the fourth support assembly 25 includes: a fourth support base 251 , a rotating assembly 252 , a second support rod 253 , a support column 254 and a first limiter 255 .

[0087] Specifically, the fourth support base 251 is fixedly mounted to the first plate 131 via fastening screws. A rotating assembly 252 has one end rotatably mounted to the end of the fourth support base 251 facing away from the first plate 131, and the other end fixedly mounted to the second support rod 253. A support column 254 has one end fixedly mounted to the first plate 131, and the other end abuts the end of the second support rod 253 near the rotating assembly 252, supporting the second support rod 253 so that it extends obliquely upward, thereby supporting the flaps 37, the top cover 38, and the closing plate 39. A first stopper 255 is slidably mounted on the second support rod 253 and can be selectively fixed in position after sliding. The first stopper 255 is used to limit the position of the cardboard 3, positioning the bottom plate 31 of the cardboard 3 directly above the folding area A when the airplane box is folded, facilitating folding of the cardboard 3. In this embodiment, two fourth support assemblies 25 are provided, parallel to each other.

[0088] In one embodiment, the fifth support assembly 26 includes a fifth support base 261, which is fixedly mounted on the second plate 132 via fastening screws. In this embodiment, two fifth support assemblies 26 are provided, and are fixedly mounted on two second plates 132 respectively.

[0089] Please continue reading Figures 1 to 7 In one embodiment, a sixth support assembly 27 is further fixedly mounted on the second plate 132. A second stopper 271 is slidably mounted on the side of the sixth support assembly 27 away from the second plate 132. The second stopper 271 is configured to cooperate with the first stopper 255 to position the bottom plate 31 of the cardboard 3 directly above the folding area A when the airplane box is folded, facilitating folding of the cardboard 3.

[0090] From the above description, it can be seen that the embodiments of the present application achieve the following technical effects:

[0091] 1. The support portion of the support device 21 is configured to be rotatable relative to the folding frame 1. During the downward pressing process of the cardboard 3, the support portion of the support device 21 assists the rear flap 35 in folding and then turning outward, so that the support end of the support portion turns to a position away from the folding area A. The support device 21 configured in this way can, on the one hand, thicken the support portion, thereby reducing the possibility of insertion into the gap between the rear flap 35 and the side wings 36, ensuring that the aircraft box can be smoothly pressed down and folded; on the other hand, it can facilitate the folding of the rear flap 35, side wings 36 and rear support plate 33 into place, thereby improving the quality of the aircraft box after formation; in addition, after the support portion is turned outward, the aircraft box can directly fold the flaps 37, top cover 38 and closing cover plate 39 together in the folding mechanism, and the product to be packaged can be directly placed in the aircraft box during the folding process and then folded, so that the product boxing operation can be directly completed, effectively improving the folding efficiency of the aircraft box. At the same time, after the support portion is turned outward, it can also reduce obstacles and difficulties when removing the aircraft box, which is conducive to removing the folded aircraft box.

[0092] 2. The arrangement of the sensor 215 and the control box 216 can detect the aircraft box and the cardboard 3 in the folding area A when the cardboard 3 is pressed down, thereby controlling the power source 211 during the folding process to realize the automatic outward turning and resetting of the first support rod 214, making the folding process of the aircraft box simpler and faster.

[0093] 3. The setting of the rotating pressing member 232 can press the outer wall of the part to be folded on the cardboard 3 when the cardboard 3 is folded into the paper box, and when the cardboard 3 is pressed down into the folding area A, the part to be folded on the cardboard 3 is pushed into the folding area A, so that the part to be folded on the cardboard 3 is in a basically vertical state, reducing the gap that occurs during the folding process of the airplane box, so that other parts to be folded on the cardboard 3 can be folded and fixed.

[0094] 4. The setting of the rolling member 234 can, on the one hand, prevent the outer wall of the cardboard 3 from being scratched by the first support seat 211 during the downward pressing process, thereby ensuring the aesthetics of the aircraft box after folding; on the other hand, it can reduce the resistance of the cardboard to the downward pressing, making the aircraft box folding smoother.

[0095] 5. A support surface inclined toward the outside of the folding area A is provided at the end of the second support seat 231 away from the second plate body 132, so that the cardboard 3 can enter the folding area A more easily during the downward pressing process, and the setting of the support surface can better guide the cardboard 3 into the folding area A; in addition, the support surface can effectively avoid the situation where the outer wall of the cardboard 3 is damaged due to the end of the second support seat 231 directly abutting against the outer wall of the cardboard 3, thereby further ensuring the aesthetics of the aircraft box after folding.

[0096] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A carton folding mechanism, characterized in that: include: A folding frame and a supporting structure, wherein the supporting structure is connected to the folding frame, and a supporting side of the supporting structure extends away from one side of the folding frame, and the supporting structure is arranged to form a folding area; The supporting structure includes a supporting device, a fixed portion of the supporting device is fixedly connected to the folding frame, and the supporting portion of the supporting device is capable of rotating relative to the fixed portion; During the folding process of the paper box, when the paper box is pressed toward the folding area to a preset position, the supporting portion of the supporting device is turned toward the outside of the folding area.

2. The carton folding mechanism according to claim 1, characterized in that: The carton has a swing cover, the support device is used to support and assist the swing cover in folding, the fixed part includes a mounting seat, the support part includes a first support rod; the support device also includes: a power source comprising a main body and a power output portion connected to the main body, the main body being fixedly assembled with the folding frame, the mounting seat being disposed on a side of the power output portion away from the main body and fixedly assembled with the folding frame; and A transmission assembly is rotatably assembled on the mounting seat, one end of the transmission assembly close to the main body is connected to the power output part, the first support rod is fixedly connected to the end of the transmission assembly away from the power source, and the first support rod can move synchronously with the transmission assembly.

3. The carton folding mechanism according to claim 2, characterized in that: The support device also includes: a sensor and a control box, the sensor is installed on the folding frame and is connected to the control box via a wire, and the control box is connected to the power source; during the carton folding process, when the sensor detects that there is a carton in the folding area, the control box controls the power source to drive the first support rod to flip outward.

4. The carton folding mechanism according to claim 2, characterized in that: The transmission assembly comprises: A transmission shaft movably passing through the mounting seat; a connecting member, one end of which is fixedly connected to the power output portion, and the other end of which is fixedly connected to the end of the transmission shaft close to the power source; and The fixing member is sleeved on one end of the transmission shaft away from the connecting member and is fixedly connected to the transmission shaft. The transmission shaft is fixedly connected to the first support rod through the fixing member, so that the first support rod can rotate synchronously with the transmission shaft.

5. The carton folding mechanism according to claim 2, characterized in that: The transmission assembly comprises: A transmission shaft movably passing through the mounting seat; A guide seat is fixedly mounted on the folding frame, and a guide groove is provided on the guide seat; A transmission rack is slidably mounted in the guide groove, and a side of the transmission rack close to the power source is fixedly connected to the power output part; a transmission gear, sleeved and fixed to one end of the transmission shaft close to the transmission rack, the transmission gear meshing with the transmission rack to convert the linear motion of the transmission rack into the rotation of the transmission shaft; and The fixing member is sleeved on the end of the transmission shaft away from the transmission gear and is fixedly connected to the transmission shaft. The transmission shaft is fixedly connected to the first support rod through the fixing member, so that the first support rod can rotate synchronously with the transmission shaft.

6. The carton folding mechanism according to any one of claims 2 to 5, characterized in that: The support structure also includes a first support assembly fixedly assembled with the folding frame, the first support assembly is arranged on the side of the first support rod away from the power source, the first support assembly includes a first support seat, and the end of the transmission assembly away from the power source passes through the first support rod and is rotatably assembled with the side of the first support seat close to the folding frame.

7. The carton folding mechanism according to claim 6, characterized in that: The folding frame includes: two mutually parallel first slide rails and two mutually parallel second slide rails, the two first slide rails and the two second slide rails are respectively located in two mutually parallel planes and intersect with each other to form a plurality of intersections; each intersection is provided with a connecting plate, each connecting plate is located between the first slide rail and the second slide rail, each connecting plate is slidably connected to the corresponding first slide rail and second slide rail, and each connecting plate can be selectively fixed on the first slide rail and the second slide rail; The fixing portion of the supporting device is fixedly connected to the connecting plate.

8. The carton folding mechanism according to claim 7, characterized in that: The connecting plate includes: a first plate body and a second plate body, the first plate body and the second plate body are arranged opposite to each other, the fixed part of the supporting device and the first supporting assembly are both fixedly connected to the first plate body and can move synchronously with the plate body; The support structure further includes a second support assembly mounted on the second plate body, the second support assembly including: a second support seat, a rotating pressing member and a rotating connecting member; The second support base is fixedly connected to the second plate body, and the rotating pressing member is installed on the second support base and can rotate relative to the second support base; the rotating connecting member has a first end and a second end, the first end is connected to the second support base, and the second end is connected to the rotating pressing member; During the folding process of the carton, when the carton is pressed toward the folding area, at least a portion of the carton can drive the rotating pressing member to rotate, so that the rotating pressing member is pressed against the outer wall of the carton and pushes the part of the carton to be folded toward the side close to the first plate body.

9. The carton folding mechanism according to claim 8, characterized in that: The rotating pressing member comprises: a driving portion, at least a portion of which protrudes from an end surface of the second supporting seat close to the first plate; a pressing portion connected to the driving portion, the pressing portion having a flattening end surface, which, under the drive of the driving portion, presses against the outer wall of the paper box and pushes the portion of the paper box to be folded toward the side close to the first plate; and The counterweight part is connected to the side of the pressing part away from the driving part. After the paper box is folded and taken out, the counterweight part resets the rotating pressing member by its own gravity.

10. The carton folding mechanism according to claim 8, characterized in that: The support structure further comprises: a third support assembly, slidably mounted on the first slide rail and / or the second slide rail, wherein the third support assembly can be selectively fixed in position on the corresponding first slide rail or the corresponding second slide rail; a fourth support assembly, fixedly mounted on the first plate and capable of moving synchronously with the first plate; and The fifth supporting assembly is fixedly mounted on the second plate body and can move synchronously with the second plate body.

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