A vertical case opener and its usage method

Abstract

The present invention relates to the technical field of case opening machines, and discloses a vertical case opening machine, which includes a blank conveying line, and a blank limiting mechanism is provided at the rear end of the blank conveying line; a box body conveying line, a second folding component is provided at the front end of the box body conveying line, and a bottom cover folding mechanism is provided at a position behind the second folding component in the box body conveying line; and an unpacking transfer mechanism, the unpacking transfer mechanism includes an unpacking mechanism and a manipulator; the unpacking mechanism includes a first box sucking component, a second box sucking component and a first folding component; the second box sucking component has an initial state parallel to the first box sucking component and an unpacking state pivoted along the vertical axis to be perpendicular to the first box sucking component, and the folding component has a vertical state parallel to the second box sucking component and a folding state pivoted along the horizontal axis to be perpendicular to the second box sucking component. The present invention has the beneficial effects of stable structure, high case opening efficiency and good case opening quality.

Description

Technical Field

[0001] The present invention relates to the technical field of carton openers, and in particular to a vertical carton opener and a carton opener method. Background Art

[0002] As carton packaging is increasingly used, manual unpacking of cartons can no longer meet demand. Currently, many industries use carton unpacking machines to efficiently unpack cartons. Figure 12 The expanded box is as shown in Figure 13 As shown, the box body generally includes four main sides (front side, rear side, left side, and right side), the lower end of the box body is provided with two lower pages (at the short sides of the box body) and two bottom covers (at the long sides of the box body), and the upper end of the box body is provided with two upper pages (at the short sides of the box bottom) and two top covers (at the long sides of the box body). The box blank needs to be opened into a rectangular state by a box opener, and finally the box bottom is sealed with tape, so that it can be used to package items. At present, some box openers use a set of suction cups to absorb the front side of the box blank, and then cooperate with the external baffle to unfold the box body, and then use another set of suction cups to absorb and position the opposite rear side, and finally send the box body into the conveying mechanism, and directly set a pressing plate at the bottom of the conveying mechanism to squeeze and bend the two lower pages and two bottom covers in sequence to realize box opening.

[0003] The existing box opener has a complex overall structure and low box opening efficiency. The front leaf sheet, the rear leaf sheet and the two side blades at the bottom of the box body are easily damaged after being squeezed, and the leaf sheets are not bent smoothly. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a vertical box opening machine with stable structure, high box opening efficiency and good box opening quality and a use method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A vertical box opening machine, comprising

[0007] A box blank conveying line, which is used to store and convey vertical box blanks, and a box blank limiting mechanism is provided at the rear end of the box blank conveying line;

[0008] A box conveyor line, the box conveyor line is used to convey unpacked boxes, a second folding assembly for folding a single lower leaf sheet at the bottom of the box is provided at the front end of the box conveyor line, and a bottom cover folding mechanism for folding bottom covers on both sides of the box is provided at a position behind the second folding assembly in the box conveyor line; and

[0009] Unboxing and transfer mechanism, the unboxing and transfer mechanism is arranged between the rear end of the blank box conveyor line and the front end of the box body conveyor line, the unboxing and transfer mechanism includes an unboxing mechanism for unfolding the blank box and a manipulator for driving the unboxing mechanism to reciprocate between the blank box conveyor line and the box body conveyor line;

[0010] Among them, the unboxing mechanism includes a first box suction component, a second box suction component arranged on one side of the first box suction component, and a first hinge component arranged under the second box suction component; the second box suction component has an initial state parallel to the first box suction component and an unboxing state pivoted along the vertical axis to be perpendicular to the first box suction component, and the hinge component has a vertical state parallel to the second box suction component and a hinge state pivoted along the horizontal axis to be perpendicular to the second box suction component.

[0011] The blank box can be unboxed into a cuboid state by one unboxing mechanism, and at the same time, a lower flap at the bottom of the box body is folded. Then, another lower flap at the bottom of the box body is folded by the second hinge mechanism, and finally, the two bottom covers are folded by the bottom cover folding mechanism; the overall structure is stable, the unboxing efficiency is high, and the unboxing quality is good.

[0012] Preferably, the blank box conveyor line includes two groups of parallel distribution conveyor line brackets, and blank box conveyor belts arranged inside the corresponding conveyor line brackets. There are two groups of blank box limiting mechanisms, and the two groups of blank box limiting mechanisms are correspondingly arranged at the rear ends of the two groups of conveyor line brackets;

[0013] The blank box limiting mechanism includes a pressing plate, a first power fixedly arranged on the conveyor line bracket and connected to the pressing plate, and a baffle for blocking the blank box located behind the pressing plate. The pressing plates in the two blank box limiting mechanisms are distributed oppositely and have a limiting state of approaching each other under the action of the first power to press both ends of the blank box and a separating state of moving away from the blank box. The baffle is configured to be pivotable around the vertical axis and has a releasing state of rotating outward to release the blank box and a blocking state of rotating inward to block the blank box;

[0014] When the pressing plate is in the separating state, the baffle is in the blocking state of blocking the last blank box; when the pressing plates approach each other to press the blank box, the baffle synchronously rotates to the releasing state.

[0015] Preferably, a vertical first pivot shaft is arranged in the middle part of the baffle, and a connecting arm is arranged between the outer end of the baffle and the pressing plate. One end of the connecting arm is rotatably connected to the baffle, and the other end of the connecting arm is rotatably connected to the pressing plate; when the pressing plate moves from the separating state to the limiting state, the connecting arm simultaneously drives the baffle to rotate from the blocking state to the releasing state.

[0016] Preferably, a push plate assembly is provided on the conveyor line bracket. The push plate assembly is slidably connected to the conveyor line bracket along the feeding direction of the carton blank. An elastic cable is provided between the push plate assembly and the conveyor line bracket to drive the push plate assembly to push the carton blank along the direction of the carton blank conveyor belt.

[0017] Preferably, an intermittent drive mechanism is provided at one end of the carton blank conveyor belt to drive the carton blank conveyor belt to perform intermittent movement; when the baffle is in the released state, the intermittent drive mechanism is in a stopped state. When the last carton blank is sucked away by the carton opening mechanism and the baffle returns to the blocking state, the intermittent drive mechanism drives the carton blank conveyor belt to move backward by a certain displacement.

[0018] Preferably, both ends of the carton blank conveyor belt are tensioned and sleeved on the driving wheels. The intermittent drive mechanism includes a swing arm sleeved on the axle of the driving wheel. A one-way bearing is provided between the swing arm and the axle. A second power source for driving the swing arm to swing reciprocally is provided at the outer end of the swing arm.

[0019] Preferably, a support and limit member for supporting the carton blank and limiting the bottom of the last carton blank is provided on the side surface at the rear end of the carton blank conveyor belt. The support and limit member has a horizontally distributed support surface, and a limit rib is provided at the rear end of the support surface.

[0020] Preferably, the first carton sucking assembly includes a base plate connected to the manipulator and a plurality of first suction cups provided on the base plate; the second carton sucking assembly includes a rotating plate located on one side of the base plate and driven to rotate by a third power source, and a plurality of second suction cups provided on the rotating plate; the first folding assembly includes a folding plate rotatably connected to the lower side of the rotating plate and a fourth power source for driving the folding plate to rotate.

[0021] The first carton sucking assembly sucks the carton blank and separates the carton blank from the carton blank conveyor line through the manipulator. The second carton sucking assembly rotates to the carton opening state and sucks the carton blank. Then, the first folding assembly rotates from the vertical state to the folding state. At this time, the base plate, the rotating plate, and the folding plate are perpendicular to each other pairwise.

[0022] Preferably, at least one long slot hole for horizontally adjusting the position of the first suction cup is provided on the base plate. At least one first suction cup is arranged in the long slot hole and locked by a fastener. Parallel suction cup positioning plates are provided on the front side of the base plate, and avoidance notches corresponding to the first suction cups are provided on the suction cup positioning plates.

[0023] Preferably, the box conveyor line and the blank conveyor line are vertically distributed. The front end of the box conveyor line is connected to the rear end of the blank conveyor line through a frame, and the unpacking transfer mechanism is installed on the frame. The box conveyor line includes two sets of box conveyor belts distributed laterally. When the unpacked box enters the box conveyor belt, the box conveyor belt contacts both sides of the box and conveys the box.

[0024] Preferably, the second folding component includes a folding guide plate located at the middle position of the front end of the box conveyor line and a fifth power source for driving the folding guide plate to reciprocate in the reverse direction along the box conveyor line. The folding guide plate is an arc-shaped plate, and its arc surface faces the front end of the box conveyor line.

[0025] When the unpacking transfer mechanism moves the box close to the second folding component, the fifth power source drives the folding guide plate to extend in the direction opposite to the box conveyor line, so that another lower flap at the bottom of the box is folded.

[0026] Preferably, the bottom cover folding mechanism includes two sets of roller assemblies rotatably arranged below both sides of the box conveyor line and two sets of sixth power sources for driving the two sets of roller assemblies to rotate synchronously. The roller assembly has a bottom cover folding state of synchronously rotating inward to the horizontal cover folding position and a separation state of synchronously rotating outward to separate from the bottom cover.

[0027] When the box enters the position between the two sets of roller assemblies, the roller assemblies rotate inward to the bottom cover folding state under the action of the sixth power source, and then fold the bottom cover of the box bottom.

[0028] Preferably, the roller assembly includes a roller frame and a row of rollers rotatably arranged on the roller frame. Connection brackets for connecting to the box conveyor line are provided at both ends of the roller frame. The roller frame is rotatably connected to the connection brackets, and a swing arm is fixedly provided on the roller frame. The output end of the sixth power source is rotatably connected to the swing arm.

[0029] Preferably, a box supporting component is provided at the position between the two sets of roller assemblies at the bottom of the box conveyor line. The box supporting component includes a box supporting plate and a box supporting power source for driving the box supporting plate to move up and down.

[0030] When both lower flaps at the bottom of the box are folded and the box enters the position of the box supporting component, the rising box supporting plate abuts against the folded lower flaps. Then, the sixth power source drives the roller assembly to rotate to the bottom cover folding state.

[0031] Preferably, a cover plate for limiting the upper end of the box is provided on the upper side of the box conveyor line. A cover plate seat is provided on the cover plate, and both ends of the cover plate seat are connected to the frame through guide rods.

[0032] Preferably, both ends of the cover plate seat are slidably connected to the guide rod. A lead screw parallel to the guide rod and a motor for driving the rotation of the lead screw are further provided on the cover plate seat. The lead screw passes through the cover plate seat and is threadedly connected to the cover plate seat.

[0033] Preferably, the front end of the cover plate corresponds to the rear end position of the box blank conveying line. A stop pin is provided at the front end of the cover plate facing the rear end position of the box blank conveying line. The stop pin is configured to be movable and adjustable in position so that the position of the stop pin corresponds to the gap between the upper cover and the upper flap on the upper end of the box blank.

[0034] When the box blank is adsorbed by the first box suction assembly and pulled backward, the stop pin blocks the other upper cover on the box blank, thereby assisting in separating the two upper covers.

[0035] A method for using a vertical box opening machine includes the following steps:

[0036] S1. The box blanks are stored on the box blank conveying line. The rearmost box blank is blocked by the baffle in the box blank limiting mechanism, the bottom of the rearmost box blank is blocked and limited by the limiting rib on the support limiting member, and the foremost box blank is elastically pressed by the push plate assembly.

[0037] S2. The manipulator drives the first box suction assembly to move to the rearmost box blank. At this time, the pressing plates approach each other to press some of the box blanks in front of the rearmost one, and the baffle rotates synchronously to the release state.

[0038] S3. The first box suction assembly sucks the rear side of the box blank. The second box suction assembly in the initial state fits against the left side of the box blank. During the process of the box blank moving from the first station to the second station, the second box suction assembly rotates to the box opening state and sucks the left side of the box blank, so that the rear side and the left side of the box blank are in a vertical state. Then the first folding component rotates to the folding state, so that the lower flap on the left side is in the folded state.

[0039] S4. The manipulator drives the box body to move towards the box body conveying line. When the lower flap on the right side of the box body approaches the second folding component, the fifth power drives the folding guide plate to extend to fold the lower flap on the right side of the box body. The box body continues to move along the direction of the box body conveying line. When the lower flap on the left side of the box body is stably supported on the folding guide plate, the box opening mechanism releases the box body.

[0040] S5. The box body moves along the box body conveying line to the bottom cover folding mechanism. The lifting support box plate in the rising state abuts against the two folded lower flaps. Then the sixth power drives the roller assembly to rotate to the bottom cover folding state, and the two bottom covers are folded, completing the entire box opening operation.

[0041] Preferably, in step S4, after the case opening mechanism releases the box body, the folding guide plate and the box body move together along the direction of the box body conveying line. The folding guide plate stops when it moves to the initial state. At this time, the rear end of the folding guide plate is butted against the front end of the box supporting plate, and the bottom of the box body enters the box body conveying line along the folding guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0043] Figure 2 is Figure 1 the top view of.

[0044] Figure 3 It is a schematic diagram of the structure of the blank conveying line.

[0045] Figure 4 It is a schematic diagram of the blank positioning state.

[0046] Figure 5 It is a schematic diagram when the pressing plate is in the limit state and the baffle is in the released state.

[0047] Figure 6 It is a schematic diagram of the state of the case opening mechanism before case opening.

[0048] Figure 7 It is a schematic diagram of the state of the case opening mechanism after case opening.

[0049] Figure 8 is Figure 7 the rear side view of.

[0050] Figure 9 It is a schematic diagram of the structure of the box body conveying line.

[0051] Figure 10 It is a schematic diagram of the second folding mechanism and the bottom cover folding mechanism.

[0052] Figure 11 It is a schematic diagram of the cover plate.

[0053] Figure 12 It is a schematic diagram of the blank.

[0054] Figure 13 It is a schematic diagram of the unfolded rear side and left side of the blank.

[0055] Figure 14 It is a diagram of the state change of the box body during case opening.

[0056] In the figure: case blank conveying line 1, case blank limiting mechanism 10, pressing plate 100, first power source 101, baffle 102, first pivot 103, pivot frame 104, connecting arm 105, conveying line support 11, case blank conveyor belt 12, pushing plate assembly 13, slide rail 130, slider 131, elastic cable 132, cable winding seat 133, intermittent driving mechanism 14, swing arm 140, wheel axle 141, one-way bearing 142, second power source 143, supporting and limiting member 15, supporting surface 150, limiting rib 151, guiding surface 152;

[0057] Box body conveying line 2, second hinge assembly 20, hinge guide plate 200, fifth power source 201, bottom cover folding mechanism 21, roller assembly 210, roller frame 2100, roller 2101, connecting bracket 2102, ear piece 2103, sixth power source 211, box body conveyor belt 22, box supporting assembly 23, box supporting plate 230, box supporting power source 231, cover plate 24, cover plate seat 240, guide rod 241, lead screw 242, motor 243, stop pin 244;

[0058] Unpacking transfer mechanism 3, unpacking mechanism 30, first box sucking assembly 300, base plate 3000, first suction cup 3001, long slot hole 3002, fastener 3003, suction cup positioning plate 3004, second box sucking assembly 301, third power source 3010, rotating plate 3011, second suction cup 3012, first hinge assembly 302, hinge plate 3020, fourth power source 3021, driving arm 3022, manipulator 31;

[0059] Frame 4, case blank 9, rear side 900, left side 901, lower flap 902, upper flap 903, bottom cover 904, top cover 905. Detailed implementation manners

[0060] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the protection scope of the present invention.

[0061] It should be understood that in this text, expressions such as "first", "second", etc. are only for descriptive purposes, and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly indicating the number of the indicated technical features. Features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0062] For the sake of accurate description, the following definitions are made for each part of the box body: As Figure 12 and Figure 13As shown in the figure, the surface where the largest rectangle in the box blank 9 (box body) is located is the rear side surface 900. The side surface opposite to the rear side surface is the front side surface. The left side of the rear side surface is the left side surface 901, and the surface opposite to the left side surface is the right side surface. The surface connected to the lower part of the left side surface and the right side surface is the lower flap 902, and the surface connected to the upper part of the left side surface and the right side surface is the upper flap 903. The surface connected to the lower part of the front side surface and the rear side surface is the bottom cover 904, and the surface connected to the upper part of the front side surface and the rear side surface is the top cover 905. For the box blank conveying line and the box body conveying line, the front end of the conveying line is the input end, and the rear end of the conveying line is the output end. When the box blank is stored on the box blank conveying line, the rear side surface of the box blank faces the rear end of the box blank conveying line.

[0063] As Figures 1 - 10 shown, a vertical box-opening machine includes a box blank conveying line 1, which is used to store and convey vertical box blanks 9. A box blank limiting mechanism 10 is provided at the rear end of the box blank conveying line 1; a box body conveying line 2, which is used to convey the opened box bodies. A second folding component 20 for folding a single lower flap at the bottom of the box body is provided at the front end of the box body conveying line. A bottom cover folding mechanism 21 for folding the bottom covers on both sides of the box body is provided at a position behind the second folding component in the box body conveying line 2; and an opening and transfer mechanism 3, which is arranged between the rear end of the box blank conveying line 1 and the front end of the box body conveying line 2. The opening and transfer mechanism 3 includes an opening mechanism 30 for unfolding the box blank and a manipulator 31 for driving the opening mechanism to reciprocate between the box blank conveying line and the box body conveying line;

[0064] The box body conveying line 2 is vertically distributed with the box blank conveying line 1. The front end of the box body conveying line is connected to the rear end of the box blank conveying line through a frame 4. One end of the manipulator 31 in the opening and transfer mechanism is installed on the frame, and the other end of the manipulator is connected to the opening mechanism; The opening mechanism 30 includes a first box suction component 300, a second box suction component 301 arranged on one side of the first box suction component, and a first folding component 302 arranged under the second box suction component; The second box suction component 301 has an initial state parallel to the first box suction component and an opening state pivoted along the vertical axis to be perpendicular to the first box suction component. The folding component has a vertical state parallel to the second box suction component and a folding state pivoted along the horizontal axis to be perpendicular to the second box suction component.

[0065] As Figures 3 - 5 shown, the box blank conveying line 1 includes two groups of parallel conveying line brackets 11 and box blank conveyor belts 12 arranged inside the corresponding conveying line brackets. There are two groups of box blank limiting mechanisms 10, and the two groups of box blank limiting mechanisms 10 are correspondingly arranged at the rear ends of the two groups of conveying line brackets;

[0066] The blank limiting mechanism 10 of the box includes a pressing plate 100, a first power source 101 fixed on the conveying line support and connected to the pressing plate, and a baffle 102 located behind the pressing plate for blocking the box blanks. The pressing plates 100 in the two box blank limiting mechanisms are distributed facing each other and have a limiting state of pressing against the two ends of the box blank close to each other under the action of the first power source and a separating state of moving away from the box blank. The baffle is configured to pivot around a vertical axis and has a releasing state of rotating outward to release the box blank and a blocking state of rotating inward to block the box blank; when the pressing plate 100 is in the separating state, the baffle 102 is in the blocking state of blocking the last box blank; when the pressing plates approach each other to press the box blank, the baffle rotates synchronously to the releasing state. The first power source in this embodiment is a cylinder.

[0067] Specifically, a vertically distributed first pivot shaft 103 is provided in the middle of the baffle 102. The first pivot shaft is installed on the conveying line support 11 through a pivot frame 104. A connecting arm 105 is provided between the outer end of the baffle 102 and the pressing plate 100. One end of the connecting arm is rotatably connected to the baffle, and the other end of the connecting arm is rotatably connected to the pressing plate; when the shaft end of the first power source extends to drive the pressing plate to extend to the limiting state (such as Figure 5 the state shown), the pressing plate simultaneously drives the baffle to rotate from the blocking state to the releasing state around the first pivot shaft 103 through the connecting arm.

[0068] As Figure 3 shown, a push plate assembly 13 is provided on the conveying line support 11. The push plate assembly is slidably connected to the conveying line support along the feeding direction of the box blank. A slide rail 130 is fixedly provided on the outside of the conveying line support. The lower end of the push plate assembly is slidably connected to the slide rail through a slider 131. An elastic cable 132 for driving the push plate assembly to push the box blank along the direction of the box blank conveyor belt is provided between the push plate assembly 13 and the conveying line support. In this embodiment, the elastic cable 132 is wound in a cable winding seat 133. Before loading the box blank, the push plate assembly is first moved to the front end of the box blank conveying line, and then released after loading the box blank, so that the push plate assembly presses the front box blank under the action of the elastic cable.

[0069] One end of the box blank conveyor belt 12 is provided with an intermittent drive mechanism 14 for driving the box blank conveyor belt to perform intermittent movement; when the baffle is in the releasing state, the intermittent drive mechanism is in a stopped state, and when the last box blank is sucked away by the box opening mechanism and the baffle returns to the blocking state, the intermittent drive mechanism drives the box blank conveyor belt to move backward by a certain displacement. Specifically, both ends of the box blank conveyor belt 12 are tensioned and sleeved on the driving wheels. The intermittent drive mechanism 14 includes a swing arm 140 sleeved on the axle 141 of the driving wheel. A one-way bearing 142 is provided between the swing arm and the axle. A second power source 143 for driving the swing arm to swing reciprocally is provided at the outer end of the swing arm. The second power source in this embodiment uses a cylinder, and the one-way bearing can also be replaced by other forms of one-way rotating components, such as other forms of ratchet and pawl mechanisms.

[0070] At the rear side of the blank conveyor belt 12 of the case blank, there is a support and limit member 15 for supporting the case blank and limiting the bottom of the last case blank. The support and limit member 15 has a horizontally distributed support surface 150. At the rear end of the support surface 150, there is a limit rib 151, and the front end of the support surface extends downward to form an inclined guide surface 152.

[0071] Under the action of the case blank limiting mechanism 10 on the case blank conveyor line, one last case blank is released each time and taken away by the case opening mechanism, and the remaining case blanks are pressed and positioned by the pressing plate. After the last case blank is taken away, the baffle rotates to the blocking state. At this time, the intermittent drive mechanism drives the case blank conveyor belt to move backward by a certain displacement; in some embodiments, an inductor for detecting the case blank is arranged at the rear end of the case blank conveyor belt. When the inductor detects that the case blank has been taken away (lack of case blank), the intermittent drive mechanism will drive the case body conveyor belt to move backward by a certain position, so that the case blank moves to the baffle. At this time, the inductor senses the presence of the case blank, and the case blank conveyor belt stops moving, making the entire case blank conveying process more stable and reliable; at the same time, the push plate assembly also moves forward by a certain position under the action of the elastic cable to keep pressing the foremost case blank.

[0072] As Figures 6 - 8 shown, the first case suction assembly 300 includes a base plate 3000 connected to the manipulator and a number of first suction cups 3001 arranged on the base plate; the second case suction assembly 301 includes a rotating plate 3011 located on one side of the base plate and driven to rotate by a third power source 3010, and a number of second suction cups 3012 arranged on the rotating plate; the first hinge assembly 302 includes a hinge plate 3020 rotatably connected to the lower side of the rotating plate and a fourth power source 3021 for driving the hinge plate to rotate; at least one long slot hole 3002 for horizontally adjusting the position of the first suction cup is arranged on the base plate 3000. At least one first suction cup is arranged in the long slot hole and locked by a fastener 3003. On the front side of the base plate, there is a parallel suction cup positioning plate 3004. The suction cup positioning plate is provided with avoidance notches corresponding to the first suction cups. By moving and positioning the first suction cups in the long slot holes, the distribution mode of the first suction cups can be changed to adapt to the adsorption of case blanks of different models. In this embodiment, the third power source uses a motor, the rotating plate is connected to the output shaft of the motor, and the rotating plate is driven to rotate by the motor; the fourth power source uses a cylinder, and the shaft end of the cylinder is connected to the hinge plate through a driving arm 3022 to drive the hinge plate to rotate.

[0073] The initial state of the case opening mechanism is as Figure 6As shown, when opening the box, the first box suction component and the second box suction component simultaneously approach the blank near the rear end of the blank conveying line. The first box suction component sucks the rear side of the blank, and the second box suction component fits against the left side of the blank. The pressing plate moves to the limiting state (the pressing plate presses and limits the blank in front of the sucked blank), and the baffle rotates to the release state. After the box opening mechanism sucks the blank and separates it from the blank conveying line, the baffle returns to the blocking state. The second box suction component rotates from the initial state to the box opening state (or close to the box opening state) and adsorbs the left side of the blank. At this time, the left side and the rear side of the blank are unfolded into a vertical state. Then, the first folding component rotates from the vertical state to the folding state, and the lower flap on the left side of the blank is folded. At this time, the base plate, the rotating plate, and the folding plate are in Figure 7 the pairwise perpendicular states shown, and the rear side, the left side, and the lower flap on the left side of the box body are pairwise perpendicular.

[0074] As Figure 9 and Figure 10 shown, the box body conveying line 2 includes two groups of box body conveyor belts 22 distributed laterally. When the opened box body enters the box body conveyor belt, the box body conveyor belt contacts both sides of the box body and conveys the box body; the second folding component 20 includes a folding guide plate 200 located at the middle position at the front end of the box body conveying line and a fifth power source 201 for driving the folding guide plate to reciprocate in the opposite direction along the box body conveying line. The folding guide plate is an arc-shaped plate, and its arc surface faces the front end of the box body conveying line; the fifth power source in this embodiment is a cylinder. When the box opening and transfer mechanism moves the box body close to the second folding component, the fifth power source drives the folding guide plate to extend in the direction opposite to the box body conveying line, so that the lower flap on the right side of the bottom of the box body is folded.

[0075] The bottom cover folding mechanism 21 includes two groups of roller assemblies 210 rotatably arranged below both sides of the box body conveying line and two groups of sixth power sources 211 for driving the two groups of roller assemblies to rotate synchronously; the roller assemblies have a bottom cover folding state of rotating synchronously inward to the horizontal cover folding position and a separation state of rotating synchronously outward to separate from the bottom cover; when the box body enters the position between the two groups of roller assemblies, the roller assemblies rotate inward to the bottom cover state under the action of the sixth power source, thereby folding the bottom cover at the bottom of the box body. Specifically, the roller assembly 210 includes a roller frame 2100 and a row of rollers 2101 rotatably arranged on the roller frame; both ends of the roller frame are provided with connection brackets 2102 connected to the box body conveying line, the roller frame is rotatably connected to the connection brackets, and an ear plate 2103 is fixedly arranged on the roller frame. The output end of the sixth power source is rotatably connected to the ear plate. The sixth power source in this embodiment uses a cylinder.

[0076] At the position where the bottom of the box conveyor line 2 is located between two sets of roller assemblies, a box supporting assembly 23 is provided. The box supporting assembly 23 includes a box supporting plate 230 and a box supporting power source 231 that drives the box supporting plate to move up and down. The box supporting power source 231 uses a cylinder. The front end of the box supporting plate is docked with the rear end of the folding guide plate 200. When both lower flaps at the bottom of the box are folded, when the box enters the position of the box supporting assembly, the bottom surface of the lower flap abuts against the top surface of the box supporting plate (the box supporting plate is in the rising state in the initial state). After that, the sixth power drives the roller assembly to rotate to the bottom cover folding state. During the process of folding the bottom cover, the box supporting plate descends and separates from the lower flap.

[0077] In order to prevent jamming between the folded lower flap on the left side of the box and the box conveyor line when the box enters the box conveyor line, in this application, the front end of the box supporting plate 230 is directly docked with the rear end of the folding guide plate. Specifically, a docking groove is provided at the rear end of the folding guide plate. When the fifth power source is in the retracted state, the front end of the box supporting plate extends into the docking groove for docking. When the box moves close to the second folding assembly, the fifth power source drives the folding guide plate to extend in the direction opposite to the box conveyor line to fold the lower flap on the right side of the bottom of the box. The box continues to move along the direction of the box conveyor line. When the lower flap on the left side of the box is stably supported on the folding guide plate, the box opening mechanism releases the box. Then, the folding guide plate and the box move together along the direction of the box conveyor line. When the folding guide plate moves to the initial state, it stops. The rear end of the folding guide plate is docked with the box supporting plate. The lower flap on the left side of the box continues to move along the arc surface of the folding guide plate and directly enters the position of the box supporting plate and abuts against the box supporting plate.

[0078] As Figure 11 shown, a cover plate 24 for limiting the upper end of the box is provided on the upper side of the box conveyor line 2. A cover plate seat 240 is provided on the cover plate. Both ends of the cover plate seat are connected to the machine frame through guide rods 241. Both ends of the cover plate seat are slidably connected to the guide rods. A lead screw 242 parallel to the guide rods and a motor 243 for driving the rotation of the lead screw are also provided on the cover plate seat. The lead screw passes through the cover plate seat and forms a threaded connection with the cover plate seat. By driving the lead screw with the motor, the height of the cover plate can be automatically adjusted to meet the use of boxes of different models.

[0079] The front end of the cover plate 24 corresponds to the rear end position of the blank box conveyor line. A stop pin 244 is provided at the front end of the cover plate facing the rear end position of the blank box conveyor line. The stop pin is configured to be movable and adjustable in position so that the position of the stop pin corresponds to the gap between the upper cover and the upper flap at the upper end of the blank box. Specifically, the stop pin is provided on a sliding seat. The sliding seat is slidably connected to the track. The sliding seat is connected to a motor and a lead screw, and thus the position of the stop pin can be automatically adjusted. When the blank box is adsorbed by the first box sucking assembly and pulled backward, the stop pin plays a role in blocking the other upper cover on the blank box, thereby assisting in pulling apart and separating the two upper covers, which is beneficial for the box opening operation.

[0080] In some embodiments, the width between the conveyor brackets 11 in the blank conveying line can be adjusted according to the actual size of the blanks. Similarly, the width between the box conveyor belts 22 in the box conveying line can also be automatically adjusted according to the box size to adapt to the opening of blanks of different models. Usually, a structure of a motor and a double-headed lead screw is adopted and adjusted automatically with the cooperation of a program. Only by inputting the box size parameters can the width of the conveying line be automatically adjusted. Such a mechanism and control method for adjusting the width of the conveying line are conventional technologies in the field of conveying lines and will not be elaborated in this application.

[0081] A method for using a vertical box opening machine includes the following steps:

[0082] S1. The blank 9 ( Figure 14 the blank in state A) is stored on the blank conveying line. The rearmost blank is blocked by the baffle in the blank limiting mechanism, and the bottom of the rearmost blank is blocked and limited by the limiting rib on the supporting and limiting member. The foremost blank is elastically pressed by the pushing plate assembly;

[0083] S2. The manipulator drives the first box suction assembly to move to the rearmost blank. At this time, the pressing plates approach each other to press some of the blanks in front of the rearmost blank, and the baffle rotates synchronously to the release state;

[0084] S3. The first box suction assembly sucks the rear side of the blank, and the second box suction assembly in the initial state fits against the left side of the blank. During the process of the first box suction assembly driving the blank to separate from the blank conveying line, the second box suction assembly rotates to the box opening state (or close to the box opening state) and sucks the left side of the blank, so that the rear side and the left side of the blank are in a vertical state (at this time, the box is in Figure 14 state B), and then the first folding component rotates to the folding state, so that the lower page on the left side is in the folded state (at this time, the box is in Figure 14 state C);

[0085] S4. The manipulator drives the box to move towards the box conveying line. When the lower page on the right side of the box approaches the second folding component, the fifth power drives the folding guide plate to extend to fold the lower page on the right side (at this time, the box is in Figure 14 state D). The box continues to move along the direction of the box conveying line. When the lower page on the left side of the box is stably supported on the folding guide plate, the box opening mechanism releases the box, and the folding guide plate and the box move together along the direction of the box conveying line. When the folding guide plate moves to the initial state, it stops. At this time, the rear end of the folding guide plate is docked with the front end of the box supporting plate, and the bottom of the box enters the box conveying line along the folding guide plate;

[0086] S5. The box body moves along the box body conveying line to the bottom cover folding mechanism. The box supporting plate in the rising state abuts against the two folded lower flaps. Then, the sixth power drives the roller assembly to rotate to the bottom cover folding state, and the two bottom covers are folded (at this time, the box body is in the Figure 14 D state in the figure), completing the entire unpacking operation.

[0087] During the folding of the bottom cover, the box supporting plate descends. Then, the box body leaves the bottom cover folding mechanism and enters the sealing station. The two groups of rollers rotate to the separated state, and the box supporting plate rises again to the initial state; at the sealing station, the overlapping parts of the two bottom covers at the bottom of the box body are bonded with tape, and the box body can be used.

[0088] This vertical unpacking machine has a stable and compact overall structure, simple unpacking actions, and better unpacking quality.

[0089] In the description of the present invention, it should be understood that the directions or positional relationships indicated by up and down, left and right, inner end, outer end, one end, the other end, etc. are based on the orientation or positional relationship shown in the drawings, and are only for more clearly facilitating the description of the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and should not be construed as a limitation to the present invention.

[0090] Although specific embodiments of the present invention are described in detail herein, they are given only for the purpose of explanation and should not be considered as constituting a limitation to the scope of the present invention. Various substitutions, changes, and modifications can be conceived without departing from the spirit and scope of the present invention.

Claims

1. A vertical case opener, characterized in that, including a blank carton conveying line for storing and conveying vertical blank cartons, with a blank carton limiting mechanism provided at the rear end of the blank carton conveying line; a box body conveying line for conveying the opened boxes, with a second folding component for folding a single lower flap at the bottom of the box body provided at the front end of the box body conveying line, and a bottom cover folding mechanism for folding the bottom covers on both sides of the box body provided at a position behind the second folding component inside the box body conveying line; and an unpacking transfer mechanism provided between the rear end of the blank carton conveying line and the front end of the box body conveying line, the unpacking transfer mechanism including an unpacking mechanism for unfolding the blank carton and a manipulator for driving the unpacking mechanism to reciprocate between the blank carton conveying line and the box body conveying line; wherein, the unpacking mechanism includes a first box sucking component, a second box sucking component provided on one side of the first box sucking component, and a first folding component provided under the second box sucking component; the second box sucking component has an initial state parallel to the first box sucking component and an unpacking state pivoted along the vertical axis to be perpendicular to the first box sucking component, and the first folding component has a vertical state parallel to the second box sucking component and a folding state pivoted along the horizontal axis to be perpendicular to the second box sucking component; the blank carton limiting mechanism includes a pressing plate, a first power fixedly provided on the conveying line support and connected to the pressing plate, and a baffle for blocking the blank carton located behind the pressing plate. The pressing plates in the two blank carton limiting mechanisms are distributed oppositely and have a limiting state of approaching each other under the action of the first power to press both ends of the blank carton and a separating state of moving away from the blank carton. The baffle is configured to be pivotable about the vertical axis and has a releasing state of rotating outward to release the blank carton and a blocking state of rotating inward to block the blank carton; the first box sucking component includes a base plate connected to the manipulator and a plurality of first suction cups provided on the base plate; the second box sucking component includes a rotating plate located on one side of the base plate and driven to rotate by a third power, and a plurality of second suction cups provided on the rotating plate; the first folding component includes a folding plate rotatably connected to the lower side of the rotating plate and a fourth power for driving the folding plate to rotate; the first box sucking component sucks the blank carton and separates the blank carton from the blank carton conveying line through the manipulator, the second box sucking component rotates to the unpacking state and sucks the blank carton, and then the first folding component rotates from the vertical state to the folding state. At this time, the base plate, the rotating plate, and the folding plate are in a state of being perpendicular to each other pairwise.

2. The vertical case opener according to claim 1, characterized in that, the blank carton conveying line includes two groups of parallel conveying line supports and blank carton conveyor belts provided inside the corresponding conveying line supports. There are two groups of blank carton limiting mechanisms, and the two groups of blank carton limiting mechanisms are correspondingly provided at the rear ends of the two groups of conveying line supports; when the pressing plate is in the separating state, the baffle is in the blocking state of blocking the last blank carton; when the pressing plates approach each other to press the blank carton, the baffle synchronously rotates to the releasing state.

3. The vertical case opener according to claim 2, wherein, A first pivot shaft vertically distributed is provided at the middle part of the baffle plate. A connecting arm is provided between the outer end of the baffle plate and the pressing plate. One end of the connecting arm is rotatably connected to the baffle plate, and the other end of the connecting arm is rotatably connected to the pressing plate; when the pressing plate moves from the separated state to the limiting state, the connecting arm drives the baffle plate to rotate from the blocking state to the releasing state at the same time.

4. The vertical case opener according to claim 2, characterized in that, A push plate assembly is provided on the conveying line bracket. The push plate assembly is slidably connected to the conveying line bracket along the feeding direction of the box blank. An elastic cable for driving the push plate assembly to push the box blank to move along the direction of the box blank conveyor belt is provided between the push plate assembly and the conveying line bracket.

5. The vertical case opener according to claim 2, wherein An intermittent driving mechanism for driving the box blank conveyor belt to perform intermittent movement is provided at one end of the box blank conveyor belt; when the baffle plate is in the releasing state, the intermittent driving mechanism is in the stopped state. When the last box blank is sucked away by the box opening mechanism and the baffle plate returns to the blocking state, the intermittent driving mechanism drives the box blank conveyor belt to move backward by a displacement.

6. The vertical unpacking machine according to claim 5, characterized in that, Both ends of the box blank conveyor belt are sleeved on the driving wheels in a tensioned state. The intermittent driving mechanism includes a swing arm sleeved on the axle of the driving wheel. A one-way bearing is provided between the swing arm and the axle. A second power for driving the swing arm to swing reciprocally is provided at the outer end of the swing arm.

7. The vertical case opener according to claim 2, characterized in that, A support and limit member for supporting the box blank and limiting the bottom of the last box blank is provided on the side surface at the rear end of the box blank conveyor belt. The support and limit member has a horizontally distributed support surface, and a limit rib is provided at the rear end of the support surface.

8. The vertical case opener according to claim 1, characterized in that, At least one long slot hole for horizontally adjusting the position of the first suction cup is provided on the substrate. At least one first suction cup is arranged in the long slot hole and locked by a fastener; a parallel suction cup positioning plate is provided on the front side of the substrate, and an avoidance notch corresponding to the first suction cup is provided on the suction cup positioning plate.

9. The vertical case opener according to claim 1, characterized in that, The box body conveying line and the box blank conveying line are vertically distributed. The front end of the box body conveying line is connected to the rear end of the box blank conveying line through a frame. The box opening and transfer mechanism is installed on the frame; the box body conveying line includes two groups of box body conveyor belts distributed laterally. When the opened box body enters the box body conveyor belt, the box body conveyor belt contacts the two sides of the box body and conveys the box body.

10. A vertical case opener according to claim 1, characterized in that, The second hinge assembly includes a hinge guide plate located at the middle position at the front end of the box body conveying line, and a fifth power for driving the hinge guide plate to reciprocate in the reverse direction along the box body conveying line. The hinge guide plate is an arc-shaped plate, and its arc surface faces the front end of the box body conveying line; When the box opening and transfer mechanism moves the box body close to the second hinge assembly, the fifth power drives the hinge guide plate to extend in the direction opposite to the box body conveying line, so that another lower flap at the bottom of the box body is folded.

11. A vertical case opener according to claim 1 or 9 or 10, characterized in that, The bottom cover folding mechanism includes two groups of roller assemblies rotatably arranged below both sides of the box body conveying line, and two groups of sixth powers for driving the two groups of roller assemblies to rotate synchronously; the roller assemblies have a state of folding the bottom cover in which they rotate synchronously inward to the horizontal cover folding position and a separated state in which they rotate synchronously outward to separate from the bottom cover; When the box body enters the position between the two groups of roller assemblies, the roller assemblies rotate inward to the bottom cover state under the action of the sixth power, thereby folding the bottom cover at the bottom of the box body.

12. A vertical case opener according to claim 11, wherein, The described roller assembly includes a roller frame and a row of rollers rotatably arranged on the roller frame; both ends of the roller frame are provided with connecting brackets connected to the box conveyor line, the roller frame is rotatably connected to the connecting brackets, a swing arm is fixedly arranged on the roller frame, and the output end of the sixth power is rotatably connected to the swing arm.

13. A vertical box-opening machine according to claim 11, characterized in that, At the position between two groups of roller assemblies at the bottom of the box conveyor line, a box supporting assembly is provided, and the box supporting assembly includes a box supporting plate and a box supporting power for driving the box supporting plate to move up and down. When both lower flaps at the bottom of the box are folded, when the box enters the position of the box supporting assembly, the box supporting plate in the rising state abuts against the folded lower flaps; then, the sixth power drives the roller assembly to rotate to the bottom cover folding state.

14. A vertical case opener according to claim 11, characterized in that, Above the box conveyor line, a cover plate for limiting the upper end of the box is provided, a cover plate seat is arranged on the cover plate, and both ends of the cover plate seat are connected to the machine frame through guide rods.

15. A vertical case opener according to claim 14, characterized in that, Both ends of the cover plate seat are slidably connected to the guide rods, a lead screw parallel to the guide rods and a motor for driving the lead screw to rotate are further arranged on the cover plate seat, and the lead screw passes through the cover plate seat and forms a threaded connection with the cover plate seat.

16. A vertical case opener according to claim 14, characterized in that, The front end of the cover plate corresponds to the position of the rear end of the blank conveyor line, and a stop pin is arranged at the position where the front end of the cover plate faces the rear end of the blank conveyor line, and the stop pin is configured to be movable and adjustable in position so that the position of the stop pin corresponds to the gap between the upper cover and the upper flap at the upper end of the blank. When the blank is adsorbed by the first box sucking assembly and pulled backward, the stop pin plays a blocking role on the other upper cover of the blank, thereby assisting in separating the two upper covers.

17. A method of using a vertical box-opening machine, which is applied to the vertical box-opening machine described in any one of claims 1-16, characterized in that, It includes the following steps: S1. The blanks are stored on the blank conveyor line. The rearmost blank is blocked by the baffle in the blank limiting mechanism, the bottom of the rearmost blank is blocked and limited by the limiting rib on the support limiting member, and the foremost blank is elastically pressed by the push plate assembly. S2. The manipulator drives the first box sucking assembly to move to the rearmost blank. At this time, the pressing plates approach each other to press some of the blanks in front of the rearmost blank, and the baffle rotates synchronously to the release state. S3. The first box sucking assembly sucks the rear side of the blank, and the second box sucking assembly in the initial state fits against the left side of the blank. During the process of the blank moving from the first station to the second station, the second box sucking assembly rotates to the box opening state and sucks the left side of the blank, so that the rear side and the left side of the blank are perpendicular. Then, the first folding component rotates to the folding state, so that the lower flap on the left side is in the folded state. S4. The manipulator drives the box to move towards the box conveyor line. When the lower flap on the right side of the box approaches the second folding component, the fifth power drives the folding guide plate to extend to fold the lower flap on the right side of the box. The box continues to move along the direction of the box conveyor line. When the lower flap on the left side of the box is stably supported on the folding guide plate, the box opening mechanism releases the box. S5. The box moves along the box conveyor line to the bottom cover folding mechanism. The box supporting plate in the rising state abuts against the two folded lower flaps. Then, the sixth power drives the roller assembly to rotate to the bottom cover folding state, and the two bottom covers are folded, completing the entire box opening operation.

18. The usage method of a vertical case opener according to claim 17, characterized in that, In step S4, after the case opening mechanism releases the box body, the hinge guide plate and the box body move together along the direction of the box body conveying line. The hinge guide plate stops when it moves to the initial state. At this time, the rear end of the hinge guide plate is docked with the front end of the box supporting plate, and the bottom of the box body enters the box body conveying line along the hinge guide plate.

Images