An automatic box folding device

Abstract

The application relates to the technical field of automatic packaging, in particular to an automatic box folding device. The device comprises a material receiving mechanism and an edge folding mechanism. The material receiving mechanism comprises a material receiving driving element and a first material suction assembly. The material receiving driving element is used for driving the first material suction assembly to move between a first working position and a second working position, and the first material suction assembly is used for adsorbing a paper box plate. The edge folding mechanism comprises a first flanging assembly, a second flanging assembly and a third flanging assembly. The first flanging assembly comprises a guide push plate and two lifting plate elements. The guide push plate passively pushes the rear side plate of the paper box plate to fold. The two lifting plate elements passively push the free ends of the left bottom adhesive wing and the right bottom adhesive wing of the paper box plate to lift. The second flanging assembly comprises two side flanging driving elements. The two side flanging driving elements are used for driving the left side plate and the right side plate of the paper box plate to fold. The left bottom adhesive wing and the right bottom adhesive wing are synchronously turned over. The third flanging assembly comprises two wing flanging driving elements and a front flanging driving element. The left side adhesive wing, the right side adhesive wing and the front side plate of the paper box plate are folded.

Description

Technical Field

[0001] This application relates to the field of automated packaging technology, and more specifically, to an automatic box folding device. Background Technology

[0002] Corrugated cardboard is die-cut, creasing, and stapling or gluing to create corrugated boxes. Corrugated boxes are one of the most widely used packaging products, consistently ranking first in usage among all packaging materials. Due to their superior performance and ease of processing, corrugated boxes have gradually replaced traditional transport packaging containers, becoming the mainstay of transport packaging. Besides protecting goods and facilitating warehousing and transportation, they also serve to beautify and promote products.

[0003] Figure 1 The diagram shows a typical planar structure of a corrugated cardboard box, including a front panel 1, a rear panel 2, a left side panel 3, a right side panel 4, a bottom panel 5, a left bottom wing 6, a right bottom wing 7, a left flap 8, and a right flap 9. The dotted lines represent creases, and the solid lines represent cuts. However, most of these boxes are currently folded manually. The folding process is complex, and the boxes are relatively rigid. Manual folding is labor-intensive, inefficient, and the quality is inconsistent due to the reliance on experience. Utility Model Content

[0004] In view of this, this application provides an automatic box folding device, which aims to improve the problems of manual folding and low efficiency in the prior art.

[0005] This application provides an automatic box folding device for folding cardboard boxes into pre-folded boxes; characterized in that it includes:

[0006] The receiving mechanism includes a receiving drive and a first suction assembly. The receiving drive drives the first suction assembly to reciprocate between a first station and a second station along the receiving direction. The first suction assembly is used to absorb the position of the first surface of the cardboard corresponding to the bottom side plate.

[0007] The folding mechanism includes a first folding assembly, a second folding assembly, and a third folding assembly;

[0008] The first flanging assembly includes a guide plate and two lifting plates located at the second station. The guide plate extends along the receiving direction, and the two lifting plates are respectively located on both sides of the guide plate along the first direction. The guide plate is located on the first side of the first suction assembly in the second direction. The first direction and the second direction are perpendicular to each other and parallel to the surface of the cardboard at the second station. When the first suction assembly moves from the first station to the second station, the guide plate passively pushes the rear side plate of the cardboard to fold towards one side of the second surface of the cardboard. Simultaneously, the two lifting plates passively push the free ends of the left and right bottom adhesive wings of the cardboard to tilt towards one side of the second surface of the cardboard.

[0009] The second folding assembly includes two folding drive members. After the rear side panel is folded, the two folding drive members are used to drive the left side panel and the right side panel of the carton board to fold along the second side of the second direction, respectively. The left bottom adhesive wing and the right bottom adhesive wing of the carton board are simultaneously flipped along the second side of the second direction.

[0010] The third folding assembly includes two folding wing drive members and a folding front drive member. After the left side panel and the right side panel are folded, the two folding wing drive members are used to drive the left and right adhesive wings of the cardboard board to fold towards the second side of the cardboard board, so that the free ends of the left and right adhesive wings tilt towards each other. After the left and right adhesive wings are folded, the folding front drive member is used to drive the front side panel of the cardboard board to fold towards the second side of the cardboard board, and the left and right adhesive wings simultaneously flip towards the first side in the second direction.

[0011] Preferably, the automatic box folding device further includes a feeding mechanism and a material feeding mechanism;

[0012] The feeding mechanism includes a paper tray and a feeding drive. The paper tray is used to hold multiple paperboards. The feeding drive is used to drive the paper tray to reciprocate along the feeding direction.

[0013] The feeding mechanism includes a feeding drive and a second suction assembly. The feeding drive is used to drive the second suction assembly to reciprocate between the paper tray and the first suction assembly. The second suction assembly is used to adsorb the second side of the paperboard.

[0014] Preferably, the automatic box folding device further includes a frame, the frame being provided with a support plate, and the feeding drive component being mounted on the support plate;

[0015] The feeding drive includes a feeding motor, a feeding nut, and a feeding screw. The output shaft of the feeding motor is connected to the feeding screw to drive the feeding screw to rotate. The feeding nut is installed on the bearing plate and screwed to the feeding screw. The feeding screw is rotatably connected to the paper tray.

[0016] Preferably, the feeding mechanism further includes four limiting units, which are respectively arranged around the paper tray. Each limiting unit includes at least one limiting baffle, which is installed on the support plate and abuts against the outer edge of the paper box plate.

[0017] Preferably, the feeding drive further includes a telescopic rod, one end of which is connected to the bearing plate and the other end of which is connected to the paper tray.

[0018] Preferably, the automatic folding box device further includes a feeding mechanism, which includes a feeding cylinder located on a first side of the first suction assembly in a second direction. The feeding cylinder is used to drive the pre-folded box to move to a second side in the second direction.

[0019] Preferably, the cardboard box further includes a cover plate and two flaps. The cover plate is connected to the side of the rear side plate opposite to the bottom side plate and is used to cover the opening of the pre-folded box. One flap is connected to the side of the left side plate opposite to the left bottom adhesive wing, and the other flap is connected to the side of the right side plate opposite to the right bottom adhesive wing.

[0020] The folding mechanism further includes a fourth folding assembly, which drives the two flaps of the carton board to fold towards each other along a first direction.

[0021] Preferably, the fourth flange assembly includes two folding tongue cylinders and a folding tongue component. The fixed end of each folding tongue cylinder is connected to the frame, and the movable end of each folding tongue cylinder is connected to a corresponding folding tongue component. The folding tongue component is used to drive the free end of the cover tongue to fold towards the pre-folded bottom side plate located at the second station.

[0022] Preferably, the lifting plate component includes an inclined plate, a fixed plate, and a spring component. The inclined plate forms an acute angle with the bottom side of the cardboard plate at the second station. In the direction from the second direction to the first side, the inclined plate is inclined towards the first station along the direction from the second station. The fixed plate is located on the side of the inclined plate close to the first adsorption component. The spring component is disposed between the fixed plate and the inclined plate, and both ends of the spring component are connected to the fixed plate and the inclined plate, respectively.

[0023] Preferably, the feeding mechanism is located on the side of the guide plate opposite to the receiving mechanism, and both the receiving direction and the feeding direction are configured to be perpendicular.

[0024] The feeding drive includes a first transfer cylinder and a second transfer cylinder. The fixed end of the first transfer cylinder is connected to the frame, and the movable end of the first transfer cylinder is connected to the fixed end of the second transfer cylinder, for driving the second transfer cylinder to move along the second direction. The first suction assembly includes at least one second suction cup, which is used to suction the second surface of the cardboard. The movable end of the second transfer cylinder is connected to the second suction cup, for driving the second suction cup to move along the feeding direction.

[0025] The receiving drive includes a receiving cylinder, the fixed end of which is connected to the frame; the first suction assembly includes at least one first suction cup, which is used to suction the first surface of the cardboard board, and the first suction cup is installed on the movable end of the receiving cylinder.

[0026] Compared with the prior art, the automatic box folding device provided in this application achieves at least the following beneficial effects:

[0027] The automatic box folding device provided in this application achieves the folding of the cardboard box into a pre-folded box through the coordinated process of the reciprocating movement of the receiving mechanism and the automated flipping action of the folding mechanism, replacing manual folding, reducing labor intensity, and improving folding efficiency. Furthermore, the first, second, and third flipping components of the folding mechanism complete the folding of the left side panel, left side panel, right side panel, front side panel, left bottom adhesive wing, right bottom adhesive wing, left side adhesive wing, and right side adhesive wing according to a preset trajectory and sequence. The accuracy of the action is guaranteed by the mechanical structure, avoiding problems such as folding edge skewing and adhesive wing misalignment caused by experience differences during manual folding, ensuring uniform and stable folding quality. Each flanging component has a clearly defined function: the first flanging component achieves passive folding of the rear side panel through a guide plate; the second flanging component completes the folding of the left side panel, right side panel, left bottom adhesive wing, and right bottom adhesive wing of the cardboard box through two flanging drive components; the third flanging component completes the folding of the left and right adhesive wings through two wing-flanging drive components, and completes the folding of the front side panel through a front-flanging drive component; the structure of each flanging component is reasonably allocated, the overall structure of the device is simple, the material receiving mechanism and the folding mechanism are modularly set and operate independently, which can reduce component interference, and targeted maintenance can be carried out during maintenance, making maintenance convenient.

[0028] Of course, any product implementing this application need not specifically need to achieve all of the technical effects described above at the same time.

[0029] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0031] Figure 1 The diagram shown is a schematic diagram of the planar structure of a common corrugated cardboard box in the prior art;

[0032] Figure 2 The figure shown is a schematic diagram of the planar structure of the cardboard board in an embodiment of this application;

[0033] Figure 3 The diagram shown is a front view of the automatic box folding device provided in an embodiment of this application.

[0034] Figure 4 The diagram shown is a schematic diagram of the receiving mechanism in an embodiment of this application;

[0035] Figure 5 The diagram shown is a structural schematic of the folding mechanism in an embodiment of this application;

[0036] Figure 6 The figure shown is a three-dimensional structural diagram of the automatic box folding device provided in an embodiment of this application;

[0037] Figure 7 As shown Figure 6 A magnified view of a portion of the image;

[0038] Figure 8 The diagram shown is a top view of the automatic box-folding device provided in an embodiment of this application.

[0039] Figure 9 The figure shown is a three-dimensional structural diagram illustrating the positional relationship between the folding mechanism, the feeding mechanism, and the receiving mechanism in an embodiment of this application.

[0040] Figure 10 The diagram shown is a schematic diagram of the connection structure between the folding tongue cylinder and the folding tongue component of the fourth flange assembly in this embodiment of the application.

[0041] Figure 11 The diagram shown is a structural schematic of the positional relationship between the feeding drive and the receiving drive in an embodiment of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 01-Carton board, 011-Rear side panel, 012-Left side panel, 013-Right side panel, 014-Bottom side panel, 015-Left bottom adhesive flap, 016-Right bottom adhesive flap, 017-Front side panel, 018-Left side adhesive flap, 019-Right side adhesive flap, 020-Lid plate, 021-Lid tongue, 02-Pre-folded box, 100-Receiving mechanism, 110-Receiving drive component, 120-First suction assembly, 200-Folding mechanism, 210-First flanging assembly, 211-Guide plate, 212-Lifting plate component, 2121-Slanted panel, 2122-Fixing plate, 220-Second flanging assembly, 221-Flanging drive component, 230-Third flanging assembly, 231-Flanging flap Drive component, 232-Flipping drive component, 240-Fourth flipping assembly, 241-Folding tongue cylinder, 242-Folding tongue component, 2421-Telescopic cylinder, 2422-Support rod, 2423-Swing rod, 300-Feeding mechanism, 310-Paper tray, 320-Feeding drive component, 321-Feeding motor, 322-Feeding nut, 323-Feeding screw, 330-Limit baffle, 340-Telescopic rod, 400-Feeding mechanism, 410-Feeding drive component, 411-First transfer cylinder, 412-Second transfer cylinder, 420-Second suction assembly, 500-Frame, 510-Bearing plate, 600-Unloading mechanism, 610-Unloading cylinder. Detailed Implementation

[0044] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0045] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0046] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0047] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0048] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0050] Figure 2 The figure shown is a schematic diagram of the planar structure of the cardboard board in an embodiment of this application.

[0051] This application provides an automatic box folding device that folds a cardboard box 01 into a pre-folded box 02.

[0052] Combination Figure 2 The planar structure of the cardboard board 01 includes at least a front side panel 017, a rear side panel 011, a left side panel 012, a right side panel 013, a bottom side panel 014, a left bottom adhesive wing 015, a right bottom adhesive wing 016, a left side adhesive wing 018, and a right side adhesive wing 019. The components are connected by crease lines and can be folded along the crease lines. It should be noted that the pre-folded box 02 is an intermediate semi-finished product after the cardboard board 01 is folded by this device, and is not the final box product. After the folding is completed by this device, the front side panel 017, rear side panel 011, left side panel 012, right side panel 013 and bottom side panel 014 of the cardboard board 01 have formed the basic outline of the box body. The left bottom adhesive wing 015, right bottom adhesive wing 016, left side adhesive wing 018 and right side adhesive wing 019 have been folded to the position to be glued at the preset angle. In the subsequent process, the left bottom adhesive wing 015 and right bottom adhesive wing 016 are glued to the bottom side panel 014 respectively (to close the bottom of the box), and the left side adhesive wing 018 is glued to the left side panel 012 and the right side adhesive wing 019 is glued to the right side panel 013 (to fix the sides of the box body), and finally the box is completed.

[0053] Figure 3 The figure shown is a front structural schematic diagram of the automatic box folding device provided in an embodiment of this application. Figure 4 The diagram shown is a schematic diagram of the material receiving mechanism in an embodiment of this application. Figure 5 The diagram shown is a structural schematic of the folding mechanism in an embodiment of this application.

[0054] Please refer to Figures 2 to 5 The automatic box folding device includes a receiving mechanism 100 and a folding mechanism 200.

[0055] The receiving mechanism 100 includes a receiving drive 110 and a first suction assembly 120. The receiving drive 110 is used to drive the first suction assembly 120 to reciprocate between the first station and the second station along the receiving direction JL. The first suction assembly 120 is used to absorb the position of the first surface of the paper box plate 01 corresponding to the bottom side plate 014.

[0056] The folding mechanism 200 includes a first folding component 210, a second folding component 220, and a third folding component 230.

[0057] The first flanging assembly 210 includes a guide plate 211 and two lifting plates 212 located at the second station. The guide plate 211 extends along the receiving direction JL, and the two lifting plates 212 are respectively located on both sides of the guide plate 211 along the first direction D1. The guide plate 211 is located on the first side of the first suction assembly 120 in the second direction D2. The first direction D1 and the second direction D2 are perpendicular to each other and parallel to the surface of the cardboard 01 at the second station. When the first suction assembly 120 moves from the first station to the second station, the guide plate 211 passively pushes the rear side plate 011 of the cardboard 01 to fold towards one side of the second surface of the cardboard 01. The two lifting plates 212 simultaneously and passively push the free ends of the left bottom adhesive wing 015 and the right bottom adhesive wing 016 of the cardboard 01 to fold and lift towards one side of the second surface of the cardboard 01.

[0058] The second folding assembly 220 includes two folding drive members 221. After the rear side panel 011 is folded, the two folding drive members 221 are used to drive the left side panel 012 and the right side panel 013 of the carton board 01 to fold along the second side of the second direction D2, respectively. The left bottom adhesive wing 015 and the right bottom adhesive wing 016 of the carton board 01 are simultaneously flipped to the second side of the second direction D2.

[0059] The third folding assembly 230 includes two folding wing drive members 231 and a folding front drive member 232. After the left side plate 012 and the right side plate 013 are folded, the two folding wing drive members 231 drive the left adhesive wing 018 and the right adhesive wing 019 of the cardboard box plate 01 to fold towards the second side of the cardboard box plate 01. After the left adhesive wing 018 and the right adhesive wing 019 are folded, the folding front drive member 232 drives the front side plate 017 of the cardboard box plate 01 to fold towards the second side of the cardboard box plate 01. The left adhesive wing 018 and the right adhesive wing 019 simultaneously flip towards the first side of the second direction D2.

[0060] It should be noted that the first side of the cardboard board 01 is the outer side of the pre-folded box 02, which is usually the printed side, and the second side of the cardboard board 01 is the inner side of the pre-folded box 02.

[0061] It should be understood that the first suction assembly 120 adsorbs the first surface of the bottom side plate 014 of the cardboard box 01. When the receiving drive 110 drives the first suction assembly 120 to move along the receiving direction JL, it will drive the cardboard box 01 to move. The guide plate 211 of the first flange assembly 210 is relatively stationary because the guide plate 211 and the two lifting plates 212 are all located at the second station. The guide plate 211 is located on the first side of the first suction assembly 120 in the second direction D2, and the two lifting plates 212 are respectively located on both sides of the guide plate 211 along the first direction D1. Therefore, when the receiving drive 110 drives the first suction assembly 120 to move from the first station to the second station, the first suction assembly 120 will drive the cardboard box 01 to move synchronously from the first station to the second station. The guide plate 211 can push the rear side plate 011 of the cardboard box 01 (the rear side plate 011 is located on the bottom side plate 014). In the second direction (D2 first side) of 4, the rear side plate 011 is folded towards the second side of the cardboard plate 01 (i.e., the side of the cardboard plate 01 away from the first suction assembly 120). The left side plate 012 and the right side plate 013 are simultaneously pushed and folded to complete the first folding operation. When the cardboard plate 01 reaches the second station, the two lifting plate parts 212 passively push the left bottom adhesive wing 015 and the right bottom adhesive wing 016 of the cardboard plate 01 towards the second side of the cardboard plate 01, so that the free ends of the left bottom adhesive wing 015 and the right bottom adhesive wing 016 are not coplanar with the bottom side plate 014. The free ends of the left bottom adhesive wing 015 and the right bottom adhesive wing 016 are located on the side of the bottom side plate 014 away from the first suction assembly 120. In this way, when the left side plate 012 and the right side plate 013 are folded in the next step, the left bottom adhesive wing 015 and the right bottom adhesive wing 016 will not interfere with the bottom side plate 014, ensuring the normal progress of the next folding operation.

[0062] After the rear panel 011 is folded, the two folding drive members 221 of the second folding assembly 220 drive the left side panel 012 and the right side panel 013 of the carton board 01 to fold along the second side of the second direction D2. The left bottom adhesive wing 015 and the right bottom adhesive wing 016 of the carton board 01 will flip synchronously along the second side of the second direction D2 to complete the second folding operation.

[0063] After the left side panel 012 and the right side panel 013 are folded, the two flap drive members 231 of the third flap assembly 230 drive the left adhesive flap 018 and the right adhesive flap 019 of the carton board 01 to fold towards the second side of the carton board 01, so that the free ends of the left adhesive flap 018 and the right adhesive flap 019 tilt towards each other. How can the left adhesive flap 018 and the right adhesive flap 01 be folded to the inside of the left side panel 012 and the right side panel 013? In this way, when the front side panel 017 is folded in the next step, the left adhesive flap 018 and the right adhesive flap 01 will not interfere with the left side panel 012 and the right side panel 013, ensuring the normal progress of the next flap operation. After the left adhesive wing 018 and the right adhesive wing 01 are folded, the front-flipping drive 232 drives the front side plate 017 of the cardboard box 01 to fold to one side of the second side of the cardboard box 01. The left adhesive wing 018 and the right adhesive wing 019 will simultaneously flip to the first side of the second direction D2 to complete the third folding operation.

[0064] In the automatic box folding device provided in this embodiment, the reciprocating movement of the receiving mechanism 100 and the automated flipping action of the folding mechanism 200 work together to fold the cardboard board 01 into a pre-folded box 02, replacing manual folding, reducing labor intensity and improving folding efficiency. Furthermore, the first flanging component 210, the second flanging component 220, and the third flanging component 230 of the folding mechanism 200 complete the folding of the left side panel 011, the left side panel 012, the right side panel 013, the front side panel 017, the left bottom adhesive wing 015, the right bottom adhesive wing 016, the left side adhesive wing 018, and the right side adhesive wing 019 according to a preset trajectory and timing. The accuracy of the action is guaranteed by the mechanical structure, avoiding problems such as folding edge skewing and adhesive wing misalignment caused by experience differences during manual folding, ensuring uniform and stable folding quality. Each flanging component has a clearly defined function: the first flanging component 210 passively folds the rear side panel 011 via the guide plate 211; the second flanging component 220 folds the left side panel 012, right side panel 013, left bottom adhesive wing 015, and right bottom adhesive wing 016 of the cardboard box 01 via two flanging drive components 221; the third flanging component 230 folds the left side adhesive wing 018 and right side adhesive wing 019 via two wing drive components, and folds the front side panel 017 via the front flanging drive component 232. The structure of each flanging component is reasonably allocated, the overall structure of the device is simple, the receiving mechanism 100 and the folding mechanism 20 are modularly set and operate independently, which can reduce component interference, and targeted maintenance can be carried out during maintenance, making maintenance convenient.

[0065] Figure 6 The figure shown is a three-dimensional structural diagram of the automatic box folding device provided in an embodiment of this application. Figure 7 As shown Figure 6 A magnified view of a portion of the image. Figure 8 The diagram shown is a top view of the automatic box folding device provided in an embodiment of this application.

[0066] See Figure 3 , Figures 6 to 8 In some embodiments, the automatic folding device further includes a feeding mechanism 300 and a feeding mechanism 400; the feeding mechanism 300 includes a paper tray 310 and a feeding drive 320, the paper tray 310 is used to place a plurality of paperboards 01, and the feeding drive 320 is used to drive the paper tray 310 to reciprocate along the feeding direction; the feeding mechanism 400 includes a feeding drive 410 and a second suction assembly 420, the feeding drive 410 is used to drive the second suction assembly 420 to reciprocate between the paper tray 310 and the first suction assembly 120, and the second suction assembly 420 is used to adsorb the second side of the paperboard 01.

[0067] In one specific embodiment (in conjunction with) Figure 3 , Figure 6 and Figure 8 The automatic folding box device shown is equipped with corresponding sensors at multiple key workstations and material picking positions to achieve automated and precise control. In this automatic folding box device, the feeding direction is up and down. Multiple paperboards 01 stacked vertically are placed on the paper tray 310, and the feeding mechanism 300 is located on one side of the receiving mechanism 200 along the second direction D2. The feeding process is as follows: the feeding drive 320 drives the paper tray 310 and the multiple cardboard trays 01 placed on it to rise. When the top cardboard tray 01 reaches the picking position, the feeding sensor at the picking position sends a feeding signal to the feeding mechanism 400. After receiving the signal, the feeding drive 410 drives the second suction component 420 to move to the picking position. After the second suction component 420 adsorbs the second side of the top cardboard tray 01, the feeding drive 410 drives the second suction component 420 to move to the first station. At this time, the receiving sensor at the first station sends a receiving signal to the receiving mechanism 100. After receiving the receiving signal, the receiving drive 110 drives the first suction component 120 to move from the first station to the second station. The folding mechanism 200 folds the cardboard tray 01 (the specific folding process is as described above and will not be repeated here). It should be noted that when the number of paper trays 01 on the paper tray 310 is insufficient, the feeding drive unit 320 can drive the paper tray 310 to descend, so that the operator can replenish the paper trays 01 on the paper tray 310, thereby ensuring a continuous supply of materials. The setting of these sensors provides precise signal transmission for the coordinated action between various mechanisms, ensuring the automated and efficient operation of the entire folding process.

[0068] In this embodiment, the feeding mechanism 300 centrally stores multiple cardboard trays 01 via the paper tray 310, enabling the batch loading of a large number of cardboard trays 01 at once, effectively increasing the logistics reserve capacity for a single feeding. The second suction component 420 of the feeding mechanism 400 establishes a stable automated transmission path between the paper tray 310 and the first suction component 120 of the receiving mechanism 100. Through precise suction action and displacement control, the cardboard trays 01 in the paper tray 310 are transferred in an orderly manner to the receiving mechanism 200. This collaborative working mode enables the receiving mechanism 200 to continuously and stably acquire the cardboard trays 01 to be processed, completely eliminating the production interruption problem caused by frequent manual feeding in traditional methods. It ensures the automated and continuous operation of the entire folding process from the material supply stage, significantly improving the overall operating efficiency of the equipment.

[0069] See Figure 3 , Figure 6 and Figure 8 In some embodiments, the automatic box folding device further includes a frame 500, which is provided with a support plate 510. A feeding drive 320 is mounted on the support plate 510. The feeding drive 320 includes a feeding motor 321, a feeding nut 322, and a feeding screw 323. The output shaft of the feeding motor 321 is connected to the feeding screw 323 to drive the feeding screw 323 to rotate. The feeding nut 322 is mounted on the support plate 510 and is screwed to the feeding screw 323. The feeding screw 323 is rotatably connected to the paper tray 310.

[0070] by Figure 3 Taking the specific embodiment shown as an example, combined with Figure 6 and Figure 8 In this automatic box folding device, when the feeding mechanism 300 is working, the feeding motor 321 starts, and the output shaft of the feeding motor 321 drives the feeding screw 323 to rotate synchronously. Because the feeding screw 322 is installed on the support plate 510, and the feeding screw 323 is screwed to the feeding nut 322, which is also installed on the support plate 510, the feeding nut 322 remains stationary relative to the support plate 510. The rotating feeding screw 323 will move upward or downward along the axial direction, thereby driving the paper tray 310 connected to it to move synchronously along the feeding direction (up and down direction). It should be noted that the direction of movement of the paper tray 310 is determined by the direction of rotation of the feeding motor 321: if the feeding motor 321 drives the paper tray 310 to rise when rotating forward, then the paper tray 310 will fall accordingly when rotating in reverse; conversely, if the paper tray 310 falls when rotating forward, then the paper tray 310 rises when rotating in reverse. This transmission structure achieves precise bidirectional control of the paper tray through the forward and reverse rotation of the motor, ensuring a stable and reliable feeding process.

[0071] In this embodiment, the support plate 510 of the frame 500 provides a stable mounting base for the feeding mechanism 300. The feeding drive component 320 adopts a "motor-lead screw-nut" transmission structure. The feeding motor 321 drives the feeding lead screw 323 to rotate. The screw connection between the feeding lead screw 323 and the feeding nut 322 converts the rotational motion into a smooth linear motion of the paper tray 310. This transmission method has high precision and controllable stroke, and can accurately adjust the feeding position of the paper tray 310. In addition, the transmission parameters of the feeding lead screw 323 (such as speed and stroke) can be flexibly adjusted by controlling the feeding motor 321, which facilitates the optimization of the feeding rhythm according to the actual folding requirements. The precise feeding action can be precisely matched with the suction rhythm of the feeding mechanism 400, avoiding the failure of the second suction component 420 to pick up materials due to the positional deviation of the paper tray 310, ensuring seamless connection of the feeding-feeding link, and further improving the overall automation and coordination efficiency of the device.

[0072] See Figure 6 and Figure 8 In some embodiments, the feeding mechanism 300 further includes four limiting units, which are respectively arranged around the paper tray 310. Each limiting unit includes at least one limiting baffle 330, which is installed on the support plate 510 and abuts against the outer edge of the paper box plate 01.

[0073] In practice, each limiting unit includes at least one limiting baffle 330. By adjusting the installation position of the limiting baffle 330 (such as moving it along the preset adjustment hole of the bearing plate 510), the limiting requirements of different sized paper box plates 01 can be adapted.

[0074] In this embodiment, four limiting units are arranged around the paper tray 310. The limiting baffle 330, by abutting against the outer edge of the paper tray 01, can limit the displacement and rotation of the paper tray 01 on the paper tray 310. Thus, even if the paper tray 310 shakes slightly during reciprocating motion, or if there is slight misalignment during stacking, the limiting baffle 330 can still physically limit the paper tray 01 to the preset picking area, preventing the paper tray 01 from slipping or shifting from the edge of the paper tray 310. This ensures that the second suction component 420 of the feeding mechanism 400 can accurately pick up the target paper tray 01, reducing the probability of picking failure. In addition, the four limiting units can circumferentially straighten the multi-layer paperboard 01 stacked on the paper tray 310, ensuring that the edges of each layer of paperboard 01 are aligned, avoiding the posture deviation of a single paperboard 01 when it is adsorbed due to stacking skew, which can reduce the problem of crease misalignment caused by poor initial posture of the paperboard 01 when the subsequent folding mechanism 200 is folded, and indirectly improve the folding quality of the pre-folded box 02.

[0075] See Figure 6In some embodiments, the feeding drive 320 further includes a telescopic rod 340, one end of which is connected to the support plate 510, and the other end of which is connected to the paper tray 310.

[0076] In this embodiment, the telescopic rod 340 is connected to the bearing plate 510 and the paper tray 310 at both ends, respectively, and can provide auxiliary support when the paper tray 310 reciprocates with the feeding screw 323. In addition, the feeding screw 323 drives the reciprocating motion of the paper tray 310, and the telescopic rod 340 can assist in correcting the motion trajectory through its linear telescopic characteristics, playing a guiding role and avoiding the movement deviation of the paper tray 310 due to installation errors or component wear. This ensures that the paper tray 310 stops at the same picking position each time, ensuring that it accurately docks with the second suction component 420 of the feeding mechanism 400, thereby improving the adsorption success rate.

[0077] See Figures 7 to 9 In some embodiments, the automatic folding box device further includes a feeding mechanism 600, which includes a feeding cylinder 610. The feeding cylinder 610 is located on the first side of the guide plate 211 in the second direction D2, and the feeding cylinder 610 is used to drive the pre-folded box 02 to move to the second side of the second direction D2.

[0078] In this embodiment, the feeding cylinder 610 serves as a power source. After the folding mechanism 200 completes the folding of the pre-folded box 02, it actively drives the pre-folded box 02 to move along the second side of the second direction D2, moving it out of the working area (such as the second station) of the folding mechanism 200. This process does not require manual intervention, enabling the automatic box folding device to form a complete automated process of "feeding-folding-feeding". This frees up space for the subsequent folding of the cardboard board 01, avoids process stagnation caused by station occupation, achieves precise matching of the folding rhythm of the feeding mechanism 600 and the folding mechanism 200, reduces process interval time, and improves the overall box folding efficiency of the device.

[0079] Furthermore, in this embodiment, the position of the feeding cylinder 610 (on the first side of the guide plate 211 in the second direction D2) is reasonably matched with the action area of ​​the folding mechanism 200, and its driving direction is adapted to the placement posture of the pre-folded box 02 in the second station, enabling feeding to be completed without interfering with the subsequent actions of the folding mechanism 200. This coordinated layout reduces motion interference between mechanisms, lowers the risk of failure caused by component collisions, and improves the overall stability of the equipment operation.

[0080] Figure 9 The diagram shown is a structural schematic diagram illustrating the positional relationship between the folding mechanism, the feeding mechanism, and the receiving mechanism in an embodiment of this application. Figure 10 The diagram shows the connection structure of the folding cylinder and the folding piece of the fourth folding assembly in this embodiment of the application.

[0081] See Figure 2 , Figures 7 to 10 In some embodiments, the cardboard box 01 further includes a cover plate 020 and two flaps 021. The cover plate 020 is connected to the side of the rear side plate 011 opposite to the bottom side plate 014 and is used to cover the opening of the pre-folded box 02. One flap 021 is connected to the side of the left side plate 012 opposite to the left bottom adhesive wing 015, and the other flap 021 is connected to the side of the right side plate 013 opposite to the right bottom adhesive wing 016. The folding mechanism 200 further includes a fourth folding assembly 240, which is used to drive the two flaps 021 of the cardboard box 01 to fold towards each other along the first direction D1.

[0082] In this embodiment, for the newly added cover plate 020 and two flaps 021 structure of the cardboard box 01, the fourth flanging assembly 240 drives the flaps 021 to fold along the first direction D1 toward the side closer to each other. This allows the device to not only complete the folding of the basic structures such as the front side plate 017, rear side plate 011, left side plate 012, and right side plate 013, but also to simultaneously pre-fold the flaps 021, providing a pre-formed foundation for the subsequent sealing of the cover plate 020 and the final box assembly. This avoids the extra step of manually folding the flaps 021 separately and further improves the scope of automation.

[0083] See Figures 7 to 10 In some embodiments, the fourth folding assembly 240 includes two folding tongue cylinders 241 and a folding tongue component 242. The fixed end of each folding tongue cylinder 241 is connected to the frame 500, and the movable end of each folding tongue cylinder 241 is connected to a corresponding folding tongue component 242. The folding tongue component 242 is used to drive the free end of the cover tongue 021 to fold towards the bottom side plate 014 of the pre-folding box 02 located at the second station.

[0084] For specific implementation, please refer to Figure 10 The tongue folding component 242 includes a telescopic cylinder 2421, a support rod 2422, and a swing rod 2423. The fixed end of the telescopic cylinder 2421 is located at the movable end of the tongue folding cylinder 2421. The movable end of the telescopic cylinder 2421 is hinged to the swing rod 2423. The middle part of the swing rod 2423 is hinged to one end of the support rod 2422. The other end of the support rod 2422 is connected to the fixed end of the telescopic cylinder 2421. That is, the tongue folding component 242 is a linkage structure. When the tongue folding component 242 is working, the movable end of the telescopic cylinder 2421 moves telescopically. When the movable end of the telescopic cylinder 2421 moves, it can drive the other end of the swing rod 2423 to swing. When the tongue folding component 242 drives the free end of the cover tongue 021, the swing direction of the swing rod 2423 is v (see...). Figure 10 The swing angle can be from 90° to 60°.

[0085] In this embodiment, the folding tongue 242 acts directly on the cover tongue 021. In conjunction with the movement and extension of the folding tongue cylinder 241, it drives the two cover tongues 021 of the carton board 01 to fold towards each other along the first direction D1. At this time, the cover tongue 021 rotates 90°. After that, the folding tongue 242 folds along the preset trajectory "towards the bottom side plate 014". The cover tongue 021 continues to rotate at a certain angle (such as 90°), that is, the rotation angle of the cover tongue 21 increases (rotates a total of 180°), ensuring the folding effect of the cover tongue 21.

[0086] See Figure 4 and Figure 5 In some embodiments, the lifting plate member 212 includes an inclined plate 2121, a fixed plate 2122, and a spring member (not shown in the figure). The inclined plate 2121 forms an acute angle with the bottom side plate 014 of the cardboard box plate 01 in the second station, and extends from the first side to the second side along the second direction D2. The inclined plate is inclined along the direction from the second station to the first station. The fixed plate 2122 is located on the side of the inclined plate 2121 close to the first adsorption component 120. The spring member is disposed between the fixed plate 2122 and the inclined plate 2121, and both ends of the spring member are respectively connected to the fixed plate 2122 and the inclined plate 2121.

[0087] In this embodiment, the inclined panel 2121 forms an acute angle with the bottom side panel 014 of the cardboard box 01 and is inclined in a preset direction (from the first side to the second side along the second direction D2, the inclined panel is inclined in the direction from the second station to the first station). When the first suction component 120 drives the cardboard box 01 to move from the first station to the second station, the left bottom adhesive wing 015 and the right bottom adhesive wing 016 will naturally contact the inclined panel 2121 and be lifted at a certain angle along the inclined panel 2121, so that the free ends of the left bottom adhesive wing 015 and the right bottom adhesive wing 016 are raised and not on the same plane as the bottom side panel 014. In this way, when the second folding component 220 drives the left side panel 012 and the right side panel 013 to fold, the left bottom adhesive wing 015 and the right bottom adhesive wing 016 will not interfere with the bottom side panel 014, ensuring that the left side panel 012 and the right side panel 013 can be folded smoothly. The left bottom adhesive wing 015 and the right bottom adhesive wing 016 are lifted by the inclined panel 2121. When the second folding assembly 220 drives the left side panel 012 and the right side panel 013 to fold, the crease on the side of the left side panel 012 near the left bottom adhesive wing 015 and the crease on the side of the right side panel 013 near the right bottom adhesive wing 016 will pass through the inclined panel 2121. The crease will exert a certain pressure on the inclined panel 2121. The spring is compressed and deformed by the inclined panel 2121. At the same time, the inclined panel 2121 moves towards the fixed plate 2122 under the action of this pressure, so that the inclined panel 2121 avoids space and does not interfere with the left side panel 012 and the right side panel 013. This avoids the left side panel 012 and the right side panel 013 from being deformed by the inclined panel 2121 during folding, improves the folding quality, and provides a good foundation for subsequent manual bonding.

[0088] Figure 11 The diagram shown is a structural schematic of the positional relationship between the feeding drive and the receiving drive in an embodiment of this application.

[0089] Combination Figure 6 , Figure 7 and Figure 11In some embodiments, the feeding mechanism 300 is located on the side of the guide plate 211 opposite to the receiving mechanism 200, and both the receiving direction and the feeding direction are configured to be vertical; the feeding drive 410 includes a first transfer cylinder 411 and a second transfer cylinder 412, the fixed end of the first transfer cylinder 411 is connected to the frame 500, and the movable end of the first transfer cylinder 411 is connected to the fixed end of the second transfer cylinder 412, for driving the second transfer cylinder 412 to move along the second direction D2; the second suction assembly 420 includes at least one second suction cup, the second suction cup is used to adsorb the second surface of the cardboard plate 01, and the movable end of the second transfer cylinder 412 is connected to the second suction cup, for driving the second suction cup to move along the feeding direction; the receiving drive 110 includes a receiving cylinder, the fixed end of the receiving cylinder is connected to the frame 500; the first suction assembly 120 includes at least one first suction cup, the first suction cup is used to adsorb the first surface of the cardboard plate 01, and the first suction cup is installed on the movable end of the receiving cylinder.

[0090] In practice, the first suction component 120 and the second suction component 420 can have multiple suction cups, which can be evenly distributed in a matrix. This ensures balanced adsorption force and further reduces the risk of the cardboard 01 falling off during the transfer process.

[0091] by Figure 3 Taking the specific embodiment shown as an example, combined with Figure 6 , Figure 7 and Figure 11 In this automatic box folding device, the feeding mechanism 400 operates as follows: The first transfer cylinder 411 drives the second transfer cylinder 412 to move along the second direction D2. The second transfer cylinder 412 drives the second suction assembly 420 connected to it to move synchronously along the second direction D2. When the topmost cardboard plate 01 reaches the picking position, the first transfer cylinder 411 drives the second transfer cylinder 412 to move along the first side of the second direction D2. The second transfer cylinder 412 drives the second suction cup to move (descend) along the vertical direction until it contacts the second surface of the cardboard plate 01. The second suction cup generates negative pressure to adsorb and fix the cardboard plate 01. The second transfer cylinder 412 drives the second suction cup to move (rise) along the vertical direction again, so that the cardboard plate 01 is separated from the lower cardboard plate 01. The first transfer cylinder 411 drives the second transfer cylinder 412 to move along the second side of the second direction D2 to the position above the first station. The second transfer cylinder 412 drives the second suction cup to transfer the cardboard plate 01 to the first station.

[0092] In this embodiment, a dual-layer drive structure is used, in which the first transfer cylinder 411 drives the second transfer cylinder 412 to move along the second direction D2, and the second transfer cylinder 412 drives the second suction cup to move along the feeding direction. This achieves precise transfer of the cardboard board 01 in space, ensuring an efficient and stable transmission path from the paper tray 310 to the receiving mechanism 200. The first suction cup adsorbs the first surface of the cardboard board 01, and the second suction cup adsorbs the second surface of the cardboard board 01. The suction cups contact the cardboard board 01 through negative pressure adsorption, which can closely fit the surface of the corrugated cardboard board 01 (even if the surface is slightly uneven), ensuring that the cardboard board 01 is not easily detached or shifted during transfer and processing, thus guaranteeing the accuracy of subsequent folding processes. Both the feeding mechanism 400 and the receiving mechanism 100 adopt a combination of suction cup adsorption and cylinder drive. The suction cups are directly installed on the moving end of the cylinder, resulting in a compact overall structure.

[0093] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. An automatic box-folding device for folding cardboard boxes into pre-folded boxes; characterized in that, include: The receiving mechanism includes a receiving drive and a first suction component. The receiving drive is used to drive the first suction component to reciprocate between a first station and a second station along the receiving direction. The first suction component is used to absorb the position of the bottom side plate on the first surface of the cardboard. and The folding mechanism includes a first folding assembly, a second folding assembly, and a third folding assembly; The first flanging assembly includes a guide plate and two lifting plates located at the second station. The guide plate extends along the receiving direction, and the two lifting plates are respectively located on both sides of the guide plate along the first direction. The guide plate is located on the first side of the first suction assembly in the second direction. The first direction and the second direction are perpendicular to each other and parallel to the surface of the cardboard at the second station. When the first suction assembly moves from the first station to the second station, the guide plate passively pushes the rear side plate of the cardboard to fold towards one side of the second surface of the cardboard. Simultaneously, the two lifting plates passively push the free ends of the left and right bottom adhesive wings of the cardboard to tilt towards one side of the second surface of the cardboard. The second folding assembly includes two folding drive members. After the rear side panel is folded, the two folding drive members are used to drive the left side panel and the right side panel of the carton board to fold along the second side of the second direction, and the left bottom adhesive wing and the right bottom adhesive wing of the carton board are flipped synchronously to the second side of the second direction. The third folding assembly includes two folding wing drive members and a folding front drive member. After the left side panel and the right side panel are folded, the two folding wing drive members are used to drive the left and right adhesive wings of the cardboard board to fold towards the second side of the cardboard board, so that the free ends of the left and right adhesive wings tilt towards each other. After the left and right adhesive wings are folded, the folding front drive member is used to drive the front side panel of the cardboard board to fold towards the second side of the cardboard board, and the left and right adhesive wings simultaneously flip towards the first side in the second direction.

2. The automatic box-folding device as described in claim 1, characterized in that, It also includes a loading mechanism and a feeding mechanism; The feeding mechanism includes a paper tray and a feeding drive. The paper tray is used to hold multiple paperboards. The feeding drive is used to drive the paper tray to reciprocate along the feeding direction. The feeding mechanism includes a feeding drive and a second suction assembly. The feeding drive is used to drive the second suction assembly to reciprocate between the paper tray and the first suction assembly. The second suction assembly is used to adsorb the second side of the paperboard.

3. The automatic box-folding device as described in claim 2, characterized in that, The automatic box folding device also includes a frame, the frame being provided with a support plate, and the feeding drive component being mounted on the support plate; The feeding drive includes a feeding motor, a feeding nut, and a feeding screw. The output shaft of the feeding motor is connected to the feeding screw to drive the feeding screw to rotate. The feeding nut is installed on the bearing plate and screwed to the feeding screw. The feeding screw is rotatably connected to the paper tray.

4. The automatic box-folding device as described in claim 3, characterized in that, The feeding mechanism also includes four limiting units, which are respectively arranged around the paper tray. Each limiting unit includes at least one limiting baffle, which is installed on the carrier plate and abuts against the outer edge of the paper box plate.

5. The automatic box-folding device as described in claim 3, characterized in that, The feeding drive also includes a telescopic rod, one end of which is connected to the bearing plate and the other end of which is connected to the paper tray.

6. The automatic box-folding device as described in claim 1, characterized in that, The automatic folding box device also includes a feeding mechanism, which includes a feeding cylinder. The feeding cylinder is located on the first side of the first suction component in the second direction, and the feeding cylinder is used to drive the pre-folded box to move to the second side in the second direction.

7. The automatic box-folding device as described in claim 3, characterized in that, The cardboard box also includes a cover plate and two flaps. The cover plate is connected to the side of the rear side plate away from the bottom side plate and is used to cover the opening of the pre-folded box. One flap is connected to the side of the left side plate away from the left bottom adhesive wing, and the other flap is connected to the side of the right side plate away from the right bottom adhesive wing. The folding mechanism further includes a fourth folding assembly, which drives the two flaps of the carton board to fold towards each other along a first direction.

8. The automatic box-folding device as described in claim 7, characterized in that, The fourth flange assembly includes two flap cylinders and flap components. The fixed end of each flap cylinder is connected to the frame, and the movable end of each flap cylinder is connected to a flap component. The flap component is used to drive the free end of the flap to fold towards the pre-folded bottom side plate located at the second station.

9. The automatic box-folding device as described in claim 1, characterized in that, The lifting plate component includes an inclined plate, a fixed plate, and a spring component. The inclined plate forms an acute angle with the bottom side of the cardboard plate at the second station. In the direction from the second direction to the first side, the inclined plate is inclined towards the first station along the direction from the second station. The fixed plate is located on the side of the inclined plate close to the first suction assembly. The spring component is disposed between the fixed plate and the inclined plate, and both ends of the spring component are connected to the fixed plate and the inclined plate, respectively.

10. The automatic box-folding device as described in claim 3, characterized in that, The feeding mechanism is located on the side of the guide plate opposite to the receiving mechanism, and both the receiving direction and the feeding direction are configured to be perpendicular. The feeding drive includes a first transfer cylinder and a second transfer cylinder. The fixed end of the first transfer cylinder is connected to the frame, and the movable end of the first transfer cylinder is connected to the fixed end of the second transfer cylinder, for driving the second transfer cylinder to move along the second direction. The first suction assembly includes at least one second suction cup, which is used to suction the second surface of the cardboard. The movable end of the second transfer cylinder is connected to the second suction cup, for driving the second suction cup to move along the feeding direction. The receiving drive includes a receiving cylinder, the fixed end of which is connected to the frame; the first suction assembly includes at least one first suction cup, which is used to suction the first surface of the cardboard board, and the first suction cup is installed on the movable end of the receiving cylinder.

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