Automatic box folding machine for large gift boxes

Abstract

The utility model discloses an automatic box folding machine for large gift boxes, and relates to the technical field of packaging machinery. The stock bin, the suction mechanism, the box opening mechanism and the discharging turnover mechanism are sequentially installed on the machine frame from front to back. The positioning transfer mechanism is arranged below the suction mechanism; the box folding forming mechanism is arranged on the side surface of the box opening mechanism; and the sliding block traction mechanism is arranged on the side surface of the positioning transfer mechanism. A discharge port of the stock bin faces the suction mechanism and is inclined downwards; the suction mechanism comprises a suction cup assembly, a suction cup shaft and a curve overturning sliding way. The suction cup shaft is rotationally connected with the sliding block traction mechanism. A first crank and a second crank which are fixedly connected with the sucker assembly and rotationally connected with the curve overturning sliding way are arranged at the two ends of the sucker shaft respectively. The automatic box folding machine for the large gift box can meet the box folding requirements of the gift box which is large in size, large in single weight, uneven in upper and lower surfaces and provided with a hanging rope handle; and the discharge port is obliquely arranged downwards and is matched with the suction mechanism and the sliding block traction mechanism to move, so that lossless material taking can be realized.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically to an automatic gift box folding machine. Background Technology

[0002] Currently, due to the large size, weight, and uneven surfaces of large gift boxes with hanging ropes and handles, they are difficult to fold. Folding these boxes is typically done manually, which is labor-intensive and inefficient. Traditional folding machines retrieve boxes from the bottom of the hopper. When many gift boxes are already in the hopper, their weight makes them difficult to remove, potentially damaging their appearance. Furthermore, the hanging ropes and handles on both sides of the gift boxes cannot be accommodated by conventional folding devices. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the purpose of this utility model is to provide an automatic gift box folding machine that can smoothly and without damage pick up materials, accurately position and transfer them, stably open the boxes and reliably fold them into shape.

[0004] This utility model provides the following technical solution:

[0005] This utility model provides an automatic gift box folding machine, including a frame and a hopper, a suction mechanism, a box opening mechanism, and a discharge flipping mechanism installed sequentially from front to back on the frame. A positioning and transfer mechanism is provided below the suction mechanism, and a box folding and forming mechanism is provided on the side of the box opening mechanism. The positioning and transfer mechanism passes through the box opening mechanism and connects to the discharge flipping mechanism. The discharge port of the hopper faces the suction mechanism and is inclined downwards. The suction mechanism includes a suction cup assembly, a suction cup shaft, and a curved flipping slide. A slider traction mechanism is provided on the side of the positioning and transfer mechanism. The suction cup shaft passes through the slider traction mechanism and is rotatably connected to it. The slider traction mechanism can drive the suction cup shaft to reciprocate linearly along the front-back direction of the frame. A first crank and a second crank are respectively provided at both ends of the suction cup shaft. The suction cup assembly is fixedly installed on the first crank, and the second crank is rotatably connected to the curved flipping slide and can slide along the curved flipping slide. The suction cup assembly is located at the discharge port of the hopper and can rotate with the first crank.

[0006] Preferably, the suction cup assembly includes a first suction cup mounted on a suction cup mounting bracket.

[0007] Preferably, at least two first suction cups are provided.

[0008] Preferably, the hopper includes a support bracket, side support plates, and a pressure plate. The support bracket is mounted on the frame, the side support plates are mounted on both sides of the frame, and the pressure plate is mounted on the support bracket at the other end corresponding to the discharge port. Material limiting blocks are provided on both sides of the discharge port. The angle between the discharge port and the horizontal plane is 76±4°. Due to the weight of the gift box, it is difficult to remove the gift box if the angle is too small. Since the gift box is stored upright with a hanging rope and handle and is uneven, the gift box is prone to tipping over if the angle is too large. A material shortage detector is provided inside the hopper.

[0009] Preferably, the end of the second crank connected to the curved reversing slide is provided with a cam, which can rotate within the curved reversing slide and slide along the curved reversing slide.

[0010] Furthermore, the slider traction mechanism includes a slider and a linear guide rail arranged along the front-rear direction of the frame, and the slider can reciprocate linearly along the linear guide rail; the suction cup shaft and the slider are rotatably connected.

[0011] Furthermore, the positioning and transfer mechanism includes a gift box support guide rail, a transfer lever cylinder, a transfer sliding guide rail, a transfer positioning cylinder, and a transfer positioning baffle. The transfer sliding guide rail is located below the gift box support guide rail. The transfer lever cylinder is mounted on the transfer sliding guide rail and can reciprocate linearly along the transfer sliding guide rail. The transfer lever cylinder is equipped with a lever, which can drive the lever to move up and down. The transfer positioning baffle is located at one end of the positioning and transfer mechanism near the discharge and flipping mechanism. The transfer positioning cylinder is connected to the transfer positioning baffle and can drive the transfer positioning baffle to move up and down. Limiting baffles are provided on both sides of the gift box support guide rail.

[0012] Furthermore, the slider traction mechanism also includes a drive component, which can drive the slider to perform reciprocating linear motion along the linear guide rail.

[0013] Furthermore, the positioning and transfer mechanism also includes a transfer connecting plate, which is connected to the slider, and the transfer lever cylinder is mounted on the transfer connecting plate.

[0014] Furthermore, the box-opening mechanism includes an upper suction device and a lower suction device located on the upper and lower sides of the gift box support guide rail.

[0015] Furthermore, the folding box forming mechanism includes an expanding side fan, a lowering fan, a side fan, an upper fan, and a bottom-fastening forming mechanism; the upper and lower fans are located on the upper and lower sides of the gift box support guide rail, respectively, and the upper and lower fans can move up and down reciprocally; the side fan and the expanding side fan can move back and forth along the front and rear direction of the frame; the bottom-fastening forming mechanism can move back and forth along the left and right direction of the frame.

[0016] Furthermore, the discharge tilting mechanism includes a long guide support rod, a short guide support rod, a limiting stop rod, and a horizontally arranged conveyor belt, with the conveyor belt located at the bottom of the discharge tilting mechanism; the short guide support rod is located between the long guide support rod and the limiting stop rod, with the limiting stop rod located below the short and long guide support rods, and the limiting stop rod is set on the side of the frame near the folding box forming mechanism; the long and short guide support rods are connected to the gift box support guide rail, with the ends of the long and short guide support rods tilted upwards.

[0017] Preferably, the upward angle of the ends of the long guide support rod and the short guide support rod is 5°-8°.

[0018] Furthermore, it also includes a programmable logic controller (PLC) control system, which comprises a PLC, a touch screen, an absolute position feedback servo control system, photoelectric detection switches, and relay circuitry. The PLC signals control all actions of the equipment according to the programmed logic. The relay circuitry includes PLC input control lines, PLC output control lines, and power supply wiring.

[0019] Preferably, the absolute position feedback servo control system uses either a Mitsubishi MR-JE-70C servo controller or an HG-KN73J-S100 servo motor.

[0020] Preferably, the PLC is a Mitsubishi FX5U series.

[0021] Through the above design scheme, the beneficial effects of this utility model are:

[0022] This utility model employs a design where the material hopper faces the positioning and transfer mechanism and is tilted downwards. Combined with a suction mechanism and a slider traction mechanism, it allows for horizontal material handling and synchronous flipping and transfer. This multi-station coordinated operation facilitates carton retrieval and minimizes damage. Furthermore, the design includes a positioning and transfer mechanism and a discharge flipping mechanism. An opening mechanism is installed above the positioning and transfer mechanism, and a folding and forming mechanism is located on the side of the opening mechanism. This allows for precise positioning, transfer, and conveying of the carton, stable opening, and smooth folding and forming. While improving the automation level of the production process, it also reduces manpower, lowers operational intensity, reduces production costs, and increases production efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an overall schematic diagram of the automatic gift box folding machine provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the suction mechanism provided by this utility model in the state of removing the gift box;

[0026] Figure 3 This is a side view of the automatic gift box folding machine provided by this utility model;

[0027] Figure 4 This is a top view of the automatic gift box folding machine provided by this utility model;

[0028] Figure 5 This is a schematic diagram of the specific structure of the automatic gift box folding machine provided by this utility model;

[0029] Figure 6 This is a structural diagram of the silo provided by this utility model;

[0030] Figure 7 This is a schematic diagram of the suction mechanism provided by this utility model;

[0031] Figure 8 This is a schematic diagram of the slider traction mechanism provided by this utility model;

[0032] Figure 9 This is another schematic diagram of the slider traction mechanism provided by this utility model;

[0033] Figure 10 This is a schematic diagram of the positioning and transfer mechanism provided by this utility model;

[0034] Figure 11 This is a schematic diagram of the box-opening mechanism provided by this utility model;

[0035] Figure 12 This is another schematic diagram of the box-opening mechanism provided by this utility model;

[0036] Figure 13 This is a schematic diagram of the folding box forming mechanism provided by this utility model;

[0037] Figure 14 This is a top view of the folding box forming mechanism provided by this utility model;

[0038] Explanation of the markings in the image:

[0039] 10-Hopper; 101-Support bracket; 102-Side support plate; 103-Pressure plate; 104-Material limit stop; 105-Material shortage detection photoelectric switch; 20-Suction mechanism; 201-First suction cup; 202-Suction cup shaft; 203-Suction cup mounting bracket; 204-Curved tilting slide; 205-Negative pressure control element; 206-First crank; 207-Second crank; 30-Slider traction mechanism; 301-Slider; 302-Linear guide rail; 303-Servo motor; 304-Reduction gearbox; 305-Synchronous belt drive mechanism; 40-Positioning and transfer mechanism; 401-Transfer connecting plate; 402-Transfer slide 403-Transfer lever cylinder; 404-Transfer positioning cylinder; 405-Gift box support guide rail; 406-Transfer limit baffle; 407-Lever; 50-Opening box mechanism; 501-Lower suction device; 502-Parallel four-bar linkage mechanism; 503-Upper suction device; 504-Negative pressure control element; 60-Folding box forming mechanism; 601-Side fan; 602-Lower fan; 603-Side fan; 604-Upper fan; 605-Bottom forming; 70-Discharge flipping mechanism; 701-Long guide support rod; 702-Short guide support rod; 703-Limit stop bar; 704-Conveyor belt; 80-Frame. Detailed Implementation

[0040] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments thereof. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0042] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Please see Figure 1-5 The automatic gift box folding machine shown includes a PLC control system, a frame 80, and a hopper 10, a suction mechanism 20, a box opening mechanism 50, and a discharge flipping mechanism 70, which are installed sequentially from front to back on the frame 80. A positioning and transfer mechanism 40 is located below the suction mechanism 20, and a box folding and forming mechanism 60 is located on the side of the box opening mechanism 50. The positioning and transfer mechanism 40 passes through the box opening mechanism 50 and connects to the discharge flipping mechanism 70. The discharge port of the hopper 10 faces the suction mechanism 20 and is inclined downwards. The suction mechanism 20 includes a suction cup assembly, a suction cup shaft 202, and a curved flipping slide 204. The positioning and transfer mechanism... The side of the structure 40 is provided with a slider traction mechanism 30. The suction cup shaft 202 passes through the slider traction mechanism 30 and is rotatably connected to the slider traction mechanism 30. The slider traction mechanism 30 can drive the suction cup shaft 202 to reciprocate linearly along the front and rear direction of the frame 80. The two ends of the suction cup shaft 202 are respectively provided with a first crank 206 and a second crank 207. The suction cup assembly is fixedly installed on the first crank 206. The second crank 207 is rotatably connected to the curved flip slide 204 and can slide along the curved flip slide 204. The suction cup assembly is set at the discharge port of the hopper 10 and can rotate with the first crank 206.

[0045] Specifically, the PLC control system includes a programmable logic controller (PLC), a touch screen, an absolute position feedback servo control system, photoelectric detection switches, and relay circuits. PLC signals control all actions of the equipment according to the programmed logic. The relay circuits include PLC input control lines, PLC output control lines, and power supply wiring.

[0046] Specifically, the suction cup assembly includes a suction cup mounting bracket 203 and a first suction cup 201 mounted on the suction cup mounting bracket 203. In this embodiment, there are two first suction cups 201, located at opposite ends of the suction cup mounting bracket 203. During material handling, the two first suction cups 201 adhere to the gift box located at the outlet. The slider traction mechanism 30 drives the suction cup shaft 202 to move linearly from front to back, while the second crank 207 rotates on the curved flip slide 204, causing the first crank 206 to rotate, thereby moving the gift box from the outlet to the positioning and transfer mechanism.

[0047] Please refer to further information. Figure 6 In this embodiment, the hopper 10 includes a support bracket 101, side support plates 102, and a pressure plate 103. The support bracket 101 is mounted on the frame 80, the side support plates 102 are mounted on both sides of the frame 80, and the pressure plate 103 is mounted on the support bracket 101 at the other end corresponding to the discharge port. Material limiting blocks 104 are provided on both sides of the discharge port. The angle between the discharge port and the horizontal plane is 76°. A material shortage detection photoelectric switch 105 is provided inside the hopper 10. A pressure plate guide rail is provided at the bottom of the hopper 10. The pressure plate guide rail is perpendicular to the discharge port, and the pressure plate 103 is mounted on the pressure plate guide rail and can slide back and forth on the pressure plate guide rail. The gift box is placed vertically in the hopper 10, with the side cardboard of the gift box parallel to the discharge port. The pressure plate 103 is installed perpendicular to the side cardboard surface of the gift box, ensuring that the pressure plate 103 is parallel to the side cardboard surface of the gift box. Under the influence of gravity, the pressure plate 103 tilts downwards, forcing the entire gift box to move downwards. When the suction mechanism 20 picks up the material, the angle between the side cardboard of the gift box and the horizontal plane gradually changes from 76° to 0°. The material shortage detection photoelectric switch 105 alarms when it detects that there is no gift box, prompting the addition of material. This setup enables the stable and undamaged separation of large, deformable, and heavy gift boxes with hanging ropes.

[0048] In this embodiment, a cam is provided at one end of the second crank 207 that is connected to the curved flip slide 204. The cam can rotate within the curved flip slide 204 and slide along the curved flip slide 204, thereby driving the second crank 207 to flip.

[0049] In this embodiment, the slider traction mechanism 30 includes a slider 301 and a linear guide rail 302 arranged along the front and rear direction of the frame 80. The slider 301 can reciprocate linearly along the linear guide rail 302. The suction cup shaft 202 and the slider 301 are rotatably connected.

[0050] Please refer to further information. Figure 8 and Figure 9In this embodiment, the slider traction mechanism 30 also includes a drive assembly, which can drive the slider 301 to perform reciprocating linear motion along the linear guide rail 302. The drive assembly includes a servo motor 303, a reduction gearbox 304, and a synchronous belt drive mechanism 305. The servo motor 303 is connected to the reduction gearbox 304, and the output shaft of the reduction gearbox 304 is connected to the synchronous belt drive mechanism 305 and rotates to drive the synchronous belt drive mechanism 305. The synchronous belt drive mechanism 305 is connected to the slider 301, driving the slider 301 to perform linear reciprocating motion on the linear guide rail 302. The PLC receives the movement position of the slider 301 on the linear guide rail 302 detected by the servo motor 303, compares it with the running trajectory set in the PLC, and controls the servo motor 302 to operate, thereby achieving precise movement and positioning of the slider 301.

[0051] In this embodiment, the positioning and transfer mechanism 40 includes a gift box support guide rail 405, a transfer lever cylinder 403, a transfer sliding guide rail 402, a transfer positioning cylinder 404, and a transfer limiting baffle 406. The transfer sliding guide rail 402 is located below the gift box support guide rail 405. The transfer lever cylinder 403 is mounted on the transfer sliding guide rail 402 and can reciprocate linearly along the transfer sliding guide rail 402. The transfer lever cylinder 403 is equipped with a lever 407, which can drive the lever 407 to move up and down. The transfer limiting baffle 406 is located at one end of the positioning and transfer mechanism 40 near the discharge and flipping mechanism 70. The transfer positioning cylinder 404 is connected to the transfer limiting baffle 406 and can drive the transfer limiting baffle 406 to move up and down, accurately stopping the gift box at the forming station. Limiting baffles are provided on both sides of the gift box support guide rail 405 to limit the left and right deviation of the gift box and ensure the correct posture of the gift box at the forming station. The suction mechanism 20 picks up the gift box and places it on the gift box support guide rail 405. The transfer lever cylinder 403 is activated, and the lever 407 moves upward to the position, moving the gift box on the gift box support guide rail 405 to realize the transfer function.

[0052] Please combine further Figure 10 In this embodiment, the positioning and transfer mechanism 40 further includes a transfer connecting plate 401, which is connected to the slider 301. The transfer lever cylinder 403 is installed on the transfer connecting plate 401, so that the slider 301 and the transfer connecting plate 401 can be driven by the same driving force.

[0053] Specifically, the box-opening mechanism 50 includes an upper suction device 503 and a lower suction device 501 located on the upper and lower sides of the gift box support rail 405.

[0054] Please combine further Figure 11 and Figure 12In this embodiment, the box-opening mechanism 50 further includes a parallel four-bar linkage 502 and a negative pressure control element 504. The parallel four-bar linkage 502 is mounted on the frame 80 and can move up and down along the frame 80. Limiting elements are provided on both the upper and lower sides of the parallel four-bar linkage 502, forming an upper limit and a lower limit. The upper suction device 503 is mounted on the parallel four-bar linkage 502 and is installed on the frame 80 through the parallel four-bar linkage 502. The negative pressure control element 504 is mounted on the frame 80 and is used to control the suction of the gift box by the upper suction device 503 and the lower suction device 501. The upper suction device 503 includes a second suction cup and an upper suction cylinder that drives the second suction cup to move up and down reciprocally; the lower suction device 501 includes a third suction cup and a lower suction cylinder that drives the third suction cup to move up and down reciprocally. The upper suction cylinder is mounted on the parallel four-bar linkage 502. After the gift box arrives at the box-opening and forming station (between the upper suction device 503 and the lower suction device 501), the lower suction cylinder and the upper suction cylinder move to their positions, controlling the second suction cup and the third suction cup to contact the upper and lower cardboard of the gift box respectively. The PLC controls the negative pressure control element 504 to work, and the second suction cup and the third suction cup use negative pressure to suction the gift box. The parallel four-bar linkage 502 moves upward, driving the upper suction device 503 from the lower limit to the upper limit, completing the positioning and opening of the gift box.

[0055] Please refer to further information. Figure 13 and Figure 14In this embodiment, the box-forming mechanism 60 includes an expanding side fan 601, a downward-facing fan 602, a side-facing fan 603, an upward-facing fan 604, and a bottom-forming mechanism 605. The upward-facing fan 604 and the downward-facing fan 602 are located on the upper and lower sides of the gift box support guide rail 405, respectively, and can reciprocate up and down. The side-facing fan 603 and the expanding side fan 601 are each provided in pairs, corresponding to two positions along the front and rear direction of the frame 80, and can reciprocate along the front and rear direction of the frame 80. The bottom-forming mechanism 605 can reciprocate along the left and right direction of the frame 80. After the box-opening mechanism 50 completes the box-opening forming action, the second suction cup and the third suction cup maintain negative pressure to adhere to the gift box, making the upper and lower surfaces of the gift box flat after opening, ensuring the stability of the bottom-forming mechanism. Two expanding side fans 601 respectively open the side fans on the front and back sides of the gift box. The lowering fan 602 drives the lower fan to rotate upwards at the base of the gift box's fan, completing the lower fan's shape, and the expanding side fan 601 returns to its original position. Two opening side fans 603 respectively push the side fan on their respective sides inwards, completing the shape, causing the lowering fan 602 to return to its original position. The upper fan 604 drives the upper fan to rotate downwards at the base of the gift box's fan, completing the upper fan's shape, and the opening side fan 603 returns to its original position. The bottom-clamping forming 605 pushes the upper flap into the gap between the side flap and the upper and lower flaps, completing the bottom-clamping forming action. After the bottom-clamping forming 605 completes its action, the opening fan 604 and the bottom-clamping forming 605 return to their original positions. After the bottom-clamping forming 605 returns to its original position, the negative pressure control element 504 of the box-opening mechanism 50 releases the negative pressure, completing the gift box's shape.

[0056] Specifically, the discharge tilting mechanism 70 includes a long guide support rod 701, a short guide support rod, a limiting stop rod, and a horizontally arranged conveyor belt, which is located at the bottom of the discharge tilting mechanism 70. The short guide support rod is located between the long guide support rod 701 and the limiting stop rod, which is located below the short guide support rod and the long guide support rod 701. The limiting stop rod is set on the side of the frame 80 near the box forming mechanism 60, and in this embodiment, it is located on the right side of the frame 80. The long guide support rod 701 and the short guide support rod are connected to the gift box support guide rail 405, and the ends of the long guide support rod 701 and the short guide support rod are raised. In this embodiment, the upward angle of the ends of the long guide support rod 701 and the short guide support rod (i.e., the angle between them and the conveyor belt) is 5° to increase the drop between them and the conveyor belt. After the gift box is opened and formed, it moves to the short guide support rod and the long guide support rod 701 at the discharge tilting station along with the transfer lever 407 of the positioning and transfer mechanism 40. The long guide support rod 701 and the short guide support rod 702 support the side cardboard below the gift box. The long guide support rod 701 is located on the side of the gift box opening, and the short guide support rod 702 is located on the side of the gift box bottom. During the movement, the gift box moves away from the short guide support rod 702 and gradually flips under its own weight. The limit stop rod 703 can prevent the gift box from flipping too far. The bottom of the gift box bottom falls vertically downward onto the conveyor belt 704. The conveyor belt 704 rotates continuously, conveying the gift box to the next process, completing the gift box flipping and conveying.

[0057] Preferably, in another embodiment, the included angle between the discharge port and the horizontal plane can be 76±4°.

[0058] Preferably, in another embodiment, the upward angle of the ends of the long guide support rod 701 and the short guide support rod can be 5°-8°.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An automatic gift box folding machine, characterized in that, The system includes a frame and, from front to back, a hopper, a suction mechanism, a box-opening mechanism, and a discharge flipping mechanism, all mounted sequentially on the frame. A positioning and transfer mechanism is located below the suction mechanism, and a box-folding and forming mechanism is located on the side of the box-opening mechanism. The positioning and transfer mechanism passes through the box-opening mechanism and connects to the discharge flipping mechanism. The discharge port of the hopper faces the suction mechanism and is inclined downwards. The suction mechanism includes a suction cup assembly, a suction cup shaft, and a curved flipping slide. A slider traction mechanism is located on the side of the positioning and transfer mechanism. The suction cup shaft passes through the slider traction mechanism and is rotatably connected to it. The slider traction mechanism can drive the suction cup shaft to reciprocate linearly along the front-rear direction of the frame. The suction cup shaft has a first crank and a second crank at its two ends. The suction cup assembly is fixedly mounted on the first crank, and the second crank is rotatably connected to the curved flipping slide and can slide along the curved flipping slide. The suction cup assembly is located at the hopper discharge port and can rotate with the first crank.

2. The automatic gift box folding machine as described in claim 1, characterized in that, The hopper includes a support bracket, side support plates, and a pressure plate. The support bracket is mounted on the frame, the side support plates are mounted on both sides of the frame, and the pressure plate is mounted on the support bracket at the other end corresponding to the discharge port. Material limiting blocks are provided on both sides of the discharge port. The angle between the discharge port and the horizontal plane is 76±4°. A material shortage detector is provided inside the hopper.

3. The automatic gift box folding machine as described in claim 1, characterized in that, The second crank is provided with a cam at one end connected to the curved reversing slide, and the cam can rotate within the curved reversing slide and slide along the curved reversing slide.

4. The automatic gift box folding machine as described in claim 1, characterized in that, The slider traction mechanism includes a slider and a linear guide rail arranged along the front-rear direction of the frame. The slider can reciprocate linearly along the linear guide rail. The suction cup shaft is rotatably connected to the slider.

5. The automatic gift box folding machine as described in claim 4, characterized in that, The positioning and transfer mechanism includes a gift box support guide rail, a transfer lever cylinder, a transfer sliding guide rail, a transfer positioning cylinder, and a transfer positioning baffle. The transfer sliding guide rail is located below the gift box support guide rail. The transfer lever cylinder is mounted on the transfer sliding guide rail and can reciprocate linearly along it. The transfer lever cylinder has a lever that can drive the lever to move up and down. The transfer positioning baffle is located at the end of the positioning and transfer mechanism near the discharge and flipping mechanism. The transfer positioning cylinder is connected to the transfer positioning baffle and can drive it to move up and down. Limiting baffles are provided on both sides of the gift box support guide rail.

6. The automatic gift box folding machine as described in claim 5, characterized in that, The slider traction mechanism also includes a drive component, which can drive the slider to perform reciprocating linear motion along the linear guide rail.

7. The automatic gift box folding machine as described in claim 6, characterized in that, The positioning and transfer mechanism further includes a transfer connecting plate, which is connected to a slider, and the transfer lever cylinder is mounted on the transfer connecting plate.

8. The automatic gift box folding machine as described in claim 1, characterized in that, The opening mechanism includes an upper suction device and a lower suction device located on the upper and lower sides of the gift box support rail.

9. The automatic gift box folding machine as described in claim 1, characterized in that, The folding box forming mechanism includes an expanding side fan, a lowering fan, a side fan, an upper fan, and a bottom-clamping forming mechanism. The upper and lower fans are located on the upper and lower sides of the gift box support guide rail, respectively, and can move up and down. The side fan and expanding fan can move back and forth along the front and back of the frame. The bottom-clamping forming mechanism can move back and forth along the left and right of the frame.

10. The automatic gift box folding machine as described in any one of claims 1-9, characterized in that, The discharge tilting mechanism includes a long guide support rod, a short guide support rod, a limiting stop rod, and a horizontally arranged conveyor belt. The conveyor belt is located at the bottom of the discharge tilting mechanism. The short guide support rod is located between the long guide support rod and the limiting stop rod, and the limiting stop rod is located below the short guide support rod and the long guide support rod. The limiting stop rod is set on the side of the frame near the folding box forming mechanism. The long guide support rod and the short guide support rod are connected to the gift box support guide rail, and the ends of the long guide support rod and the short guide support rod are tilted upwards.

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