Automatic page closing mechanism

Abstract

The invention relates to an automatic page closing mechanism which comprises a taking bracket used for orderly bearing packaging boxes. The ejector rod is arranged on the lower side of the front of the bracket, is parallel to the bracket and is used for closing a hinge at the lower end of the packaging box in the advancing direction; the shifting rod is arranged on the front side of the ejector rod; the inserting plate is arranged below one side of the bracket and horizontally reciprocates to close the packing box bottom cover hinge; the tow bar reciprocates at the lower end of the bracket and is used for indirectly supporting hinges on the two sides of the lower end of the packaging box and positioning the positions of the inserting tongues; and the insertion tongue assembly comprises two insertion sheets which move in a reciprocating manner along the vertical direction. The packaging box page closing device is compact and reasonable in structure and convenient to operate, a complete page closing system is formed through cooperative work of the ejector rod, the shifting rod, the inserting plate, the inserting piece assembly, the positioning device and other components, and tight closing of packaging boxes and the machining quality of products are ensured by accurately controlling all the steps in the page closing process.

Description

Technical Field

[0001] The invention relates to the technical field of packaging, in particular to an automatic page closing mechanism. Background Art

[0002] In the current automated packaging production line, the handling of packaging boxes is a complex and critical link, which involves many technical difficulties that need to be solved urgently. First of all, accurately unfolding the folded packaging box into an open box state faces a series of challenges. Since the materials, sizes and shapes of packaging boxes vary, how to ensure that the packaging box is not damaged during the opening process while being able to unfold it quickly and accurately is a major problem in current technology. Traditional manual operations are not only inefficient, but also difficult to ensure the consistency and accuracy of box opening, and cannot meet the needs of modern production lines.

[0003] In the prior art, there are the following technical difficulties in closing the pages of the packaging box, especially the closing pages at the bottom of the packaging box: Precise closure of the bottom flap of the packaging box: The three hinges at the bottom of the box (two side hinges and a bottom cover hinge) require precise control and positioning to ensure sealing and appearance quality.

[0004] Due to the dynamic nature of the packaging box during the conveying process and the flexibility of the folding material, this step is difficult to automate and make efficient.

[0005] The tongue connection problem of the bottom cover hinge: The tongue of the bottom cover hinge needs to be accurately bent and inserted into the packaging box to achieve a tight closure of the bottom cover. This operation requires high technical requirements and is difficult to automate.

[0006] Fixed the packaging box issue during page closing: During the closing process, the packaging box needs to remain stable to avoid displacement or deformation when the folded pages are closed, which requires an effective fixing device to ensure the positioning accuracy of the packaging box.

[0007] To sum up, the existing technology faces challenges such as low degree of automation and insufficient control accuracy in closing the bottom pages of the packaging box, especially the problems of closing the bottom pages and fixing the pages during the closing process. There is an urgent need for an automated closing mechanism that can automatically and efficiently complete the closing of the bottom pages of the packaging box and ensure that the packaging box is stably fixed during the closing process.

[0008] For this purpose, we propose an automatic page closing mechanism. Summary of the invention

[0009] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides an automated page closing mechanism, which forms a complete page closing system by adopting the coordinated work of components such as a push rod, a lever, a plug plate, a plug assembly and a positioning device. By accurately controlling each step in the closing process, the efficiency and effect of closing the pages are improved.

[0010] The technical solution adopted by the present invention is as follows: An automatic page closing mechanism, comprising: A bracket for supporting the packaging boxes in order; A push rod, which is arranged at the lower front side of the bracket and parallel to the bracket, and is used to close the hinge at the lower end of the packaging box in the forward direction; A lever, which is arranged at the front side of the top rod and closes the hinge on the other side of the lower end of the packaging box by rotating; The inserting plate is arranged below one side of the bracket and moves horizontally back and forth to close the bottom cover hinge of the packaging box; A drag rod reciprocates at the lower end of the bracket and is used to indirectly support the folding pages on both sides of the lower end of the packaging box and to position the inserting tongue; as well as, The tongue plug assembly comprises two plugs which move back and forth in the vertical direction, one of which cooperates with the tow bar to bend the tongue plug, and the other plug is used to drive the tongue plug to be inserted into the packaging box.

[0011] As a further improvement of the above technical solution: It also includes a fixed frame, which includes an L-shaped horizontal section and a vertical section. A fourth sliding seat that moves horizontally is arranged on the horizontal section of the fixed frame. The fourth sliding seat is connected to the second telescopic drive and moves in a direction perpendicular to the side wall of the bracket. The plug plate is fixed to the fourth sliding seat by a bracket.

[0012] Also included is a positioning device for intermittently positioning the packaging box.

[0013] The positioning device comprises: The folding leaf clamping assembly is connected to the vertical section of the fixing frame by moving along the vertical direction through the bracket. The folding leaf clamping assembly includes two connecting pieces close to each other, and the two connecting pieces are expanded outwards close to the side of the packaging box to facilitate the clamping and positioning of the cover top fold of the packaging box; The clamping claw is connected to the fourth sliding seat through a bracket, and intermittently positions and clamps the packaging box as the fourth sliding seat moves.

[0014] The shifting rod is connected to a shifting rod cylinder via a second connecting rod assembly, and the shifting rod is rotated in a vertical direction by the extension and retraction of the shifting rod cylinder.

[0015] The tongue assembly includes a first plug-in piece and a second plug-in piece, which are respectively connected to corresponding driving cylinders through connecting rods to achieve telescopic movement in the vertical direction. The first plug-in piece is used to bend the tongue of the bottom cover hinge, and the second plug-in piece is used to drive the bottom cover hinge and the tongue to move upward and seal the bottom of the packaging box.

[0016] It also includes a rotatable push plate, which is rotatably connected to the rotating shaft, and the rotating shaft is connected to the fourth sliding seat through the third connecting rod assembly. As the fourth sliding seat moves, the rotating plate is driven to rotate to continuously push the packaging box to move.

[0017] The longitudinal section of the tow bar is a right triangle, with the hypotenuse facing the plug plate, and the lower end line of the tow bar and the fold line of the plug tongue are on the same vertical plane.

[0018] The upper and lower ends of the bracket are both open structures.

[0019] It also includes a driving assembly for driving the drag rod to move back and forth, and the moving direction of the drag rod and the moving direction of the packaging box are on the same vertical plane.

[0020] The beneficial effects of the present invention are as follows: The invention has a compact and reasonable structure and is easy to operate. A complete page closing system is formed by using a push rod, a push rod, a plug plate, a plug assembly and a positioning device and other components to work together. The efficiency and effect of closing the pages are improved by accurately controlling each step in the closing process.

[0021] At the same time, the present invention also has the following advantages: The automated closing mechanism in this technical solution realizes the automated and efficient closure of the bottom hinge of the packaging box by integrating multiple components such as the push rod, the lever, the insert plate, the insert assembly, and the positioning device. The coordinated work of the push rod and the lever can accurately close the hinges at the lower end and the other side of the packaging box in the forward direction, avoiding the tediousness and errors of manual operation. The insert plate and the insert assembly are responsible for inserting the bottom cover hinge into the packaging box to achieve a tight closure of the bottom cover. The entire closing process is highly automated and does not require manual intervention, which greatly improves production efficiency. At the same time, the folding clamping assembly and the claws in the positioning device can ensure the stability of the packaging box during the closing process, avoiding closing failures due to movement or deformation of the packaging box, and further improving the stability and reliability of the production line.

[0022] Each component in the automatic leaf closing mechanism has been carefully designed to ensure precise control of the leaf closing process. The inclined design of the top rod allows the leaf to be folded easily without damaging the surface of the packaging box. The lever is connected to the lever cylinder through the second connecting rod assembly, which enables precise rotation in the vertical direction and ensures the close fit of the leaf. The first and second inserts in the insert assembly are driven by the cylinder and the connecting rod, which can accurately control the bending and insertion process of the insert tongue, avoiding damage to the packaging box caused by excessive force or position deviation. In addition, the design of the fixed frame and the fourth sliding seat also ensures the stability and accuracy of the insert plate and the insert assembly during movement, thereby ensuring the processing quality of the product.

[0023] The design of the first insert piece and the second insert piece in the insert tongue assembly of the present invention realizes the precise control of the insert tongue of the bottom cover hinge of the packaging box. The first insert piece is responsible for bending the insert tongue of the bottom cover hinge, while the second insert piece is responsible for pushing the bottom cover hinge and the bent insert tongue into the packaging box together, thereby realizing the sealing of the bottom cover. This design not only improves the sealing of the packaging box, but also ensures the appearance quality of the product. At the same time, the cylinder drive and connecting rod transmission design of the insert tongue assembly ensures the stable movement of the insert piece in the vertical direction, avoids damage to the packaging box, and improves work efficiency.

[0024] The positioning device in the automatic closing mechanism of the present invention includes a folding clamping assembly and a clamping claw, which realizes accurate positioning of the packaging box. The folding clamping assembly can firmly clamp the cover top folding of the packaging box to prevent the packaging box from moving left and right during the subsequent processing. The clamping claw uses the moving characteristics of the fourth sliding seat to intermittently position and clamp the packaging box, ensuring the stability of the packaging box when the insert plate is inserted into the bottom cover folding. This design not only improves the positioning accuracy of the packaging box, but also effectively prevents the displacement or deformation of the packaging box due to external force during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 for Figure 1 Top view of the .

[0027] Figure 3 It is a schematic diagram of the connection structure between the discharging rack and the material taking component in the present invention.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the box opening component of the present invention.

[0029] Figure 5 It is a rear view of the box opening assembly of the present invention.

[0030] Figure 6It is a schematic diagram of the three-dimensional structure of the connection between the drive assembly, the bracket and the automatic page closing mechanism of the present invention.

[0031] Figure 7 for Figure 6 Schematic diagram of the three-dimensional structure from another perspective.

[0032] Figure 8 for Figure 6 Side view of.

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the tow bar in the present invention.

[0034] Among them: 100, material storage rack; 200, material taking assembly; 300, box opening assembly; 400, bracket; 500, automatic page closing mechanism; 600, ejection assembly; 700, drive assembly; 800, workbench; 101. Material rack; 102. Sliding push plate; 201, first telescopic drive; 202, first sliding seat; 203, suction cup assembly; 301, second sliding seat; 302, third sliding seat; 303, support member; 304, fixed push rod; 305, support shaft; 306, connecting seat; 307, movable push rod; 308, first connecting shaft; 309, second connecting shaft; 310, first connecting rod assembly; 311, displacement sensor; 312, sliding shaft; 313, first fixed splint; 401, roller; 501, push rod; 502, push rod; 5021, second connecting rod assembly; 5022, push rod cylinder; 503, push plate; 5031, rotating shaft; 5032, third connecting rod assembly; 504, fixed frame; 505, folding clamping assembly; 506, drag rod; 5061, second fixed clamping plate; 507, first plug-in piece; 5071, first connecting rod; 5072, first plug-in piece driving cylinder; 508, second plug-in piece; 5081, second connecting rod; 5082, second plug-in piece driving cylinder; 509, fourth sliding seat; 5091, second telescopic drive; 5092, claw; 510, plug-in plate. DETAILED DESCRIPTION

[0035] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0036] like Figure 1-Figure 2As shown, the vertical carton opening machine in this embodiment mainly includes important components such as a material taking component 200, a carton opening component 300, a bracket 400 and an automatic closing mechanism 500, and is also equipped with an ejection component 600 and a workbench 800 to support the overall operation, aiming to replace traditional manual operations through mechanical automation to achieve fast and accurate carton opening and packaging of packaging boxes. The overall structure is compact, and each part works in coordination to ensure smooth and unimpeded operation from material taking to finished product output.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, it also includes an ejector assembly 600 and a workbench 800. The ejector assembly 600 is located at the end of the bracket 400, and its structure includes an ejector cylinder, and a discharge port is provided on the side of the bracket 400 opposite to the ejector cylinder. When the package box has completed all processing steps, the ejector cylinder is started under the command of the control system, and the package box is ejected from the bracket 400 and falls into the collection box or the conveyor belt through the discharge port.

[0038] The workbench 800 is used to carry the aforementioned components and provides a stable support platform for the entire vertical carton opener. The design of the workbench 800 takes into account the overall structure and layout of the equipment. Through reasonable size and shape design, the components can be closely matched together to form a complete and efficient production line.

[0039] like Figure 3 As shown, the material storage rack 100 in this embodiment includes a material rack 101, and the folded packaging boxes are distributed side by side on the material rack 101, and a sliding push plate 102 for pushing the packaging boxes to move is also provided on the material rack 101, and the sliding push plate 102 is driven by a rodless cylinder to realize one-by-one loading. The design of the material storage rack 100 fully considers the storage and material retrieval efficiency of the packaging boxes. As a storage carrier, the material rack 101 can accommodate a large number of packaging boxes in a folded state to meet the needs of continuous production. The design of the sliding push plate 102, driven by the rodless cylinder, realizes the automatic pushing of the packaging boxes, which not only ensures the accuracy of material retrieval, but also improves production efficiency. The one-by-one loading method avoids the accumulation and confusion of packaging boxes and ensures the smooth operation of the production line.

[0040] like Figure 3 As shown, the material picking assembly 200 in this embodiment includes a reciprocating suction cup assembly 203, which is used to transfer the folded packaging boxes on the storage rack 100. The material picking assembly 200 is the starting link of the box opening machine, and is responsible for accurately and quickly picking up the folded packaging boxes from the storage rack 100. The suction cup assembly 203 firmly grasps the packaging box through the vacuum adsorption principle to ensure that it will not fall or shift during the movement. The reciprocating design enables the suction cup assembly 203 to work continuously within a fixed stroke, thereby improving the material picking efficiency.

[0041] Specifically, the material picking assembly 200 includes a first sliding seat 202, which is slidably arranged on a slide rail and driven to move by a first telescopic drive 201, and a suction cup assembly 203 is fixed to the first sliding seat 202 by a connecting rod, and the suction cup assembly 203 includes at least one suction cup. The first sliding seat 202 serves as a mobile carrier, and realizes reciprocating movement within a fixed stroke through the cooperation of the slide rail and the first telescopic drive 201. The suction cup assembly 203 is fixed to the first sliding seat 202 by a connecting rod, ensuring the synchronous movement of the suction cup and the sliding seat. The number and layout of the suction cups can be adjusted according to actual needs to meet the material picking needs of packaging boxes of different sizes and shapes. This design is both flexible and practical, and greatly improves the adaptability and reliability of the material picking assembly 200.

[0042] The driving assembly 700 in this embodiment includes a rotary driving device, a driving pulley and a transmission belt, and the sliding seat is connected to the transmission belt through the first fixed clamping plate 313 for transmission. The rotary driving device serves as a power source, and the smooth movement of the sliding seat is achieved through the cooperation of the driving pulley and the transmission belt. The design of the first fixed clamping plate 313 ensures the close connection between the sliding seat and the transmission belt, and prevents sliding and falling off during the transmission process. This design is simple and practical, and effectively improves the transmission efficiency and stability of the box opening assembly 300.

[0043] like Figure 4 and Figure 5 As shown, the box opening component 300 in this embodiment overlaps with one end of the material taking component 200, and the structure includes two sliding seats (a second sliding seat 301 and a third sliding seat 302) which can reciprocate in the same direction and can be relatively displaced, one of which is connected to a frame structure, on which there are a fixed push rod 304 and a rotatable movable push rod 307, and the other sliding seat is provided with a driving connecting rod for receiving, opening and conveying the packaging box.

[0044] The box opening assembly 300 is responsible for unfolding the folded packaging box and conveying it to the next process. The relative displacement design of the two sliding seats enables the fixed push rod 304 and the movable push rod 307 to cooperate closely, realizing the precise clamping and unfolding of the packaging box. The rotation design of the movable push rod 307 not only ensures the smooth opening action, but also avoids damage to the packaging box during the conveying process. The function of the driving connecting rod is to convert the relative displacement of the sliding seat into the rotational motion of the movable push rod 307, thereby realizing the box opening action.

[0045] Specifically, the two sliding seats are connected by the sliding shaft 312 to achieve reciprocating movement in the same direction. One of the sliding seats is fixedly connected to the driving assembly 700 and realizes autonomous movement driven by the driving assembly 700. The design that the moving direction of the sliding seat is at a 90-degree angle with the moving direction of the material picking assembly 200 enables the box opening assembly 300 to immediately open the box after the material picking assembly 200 completes the material picking, thereby improving the continuity and efficiency of the production line.

[0046] The frame structure in this embodiment includes a support member 303 and at least one connecting seat 306 arranged in parallel, and the support member 303 and the connecting seat 306 are connected to each other through at least one supporting shaft 305. The support member 303 is connected to a fixed push rod 304, and the connecting seat 306 is connected to a movable push rod 307. The minimum distance between the fixed push rod 304 and the movable push rod 307 is the same as the width of the clamped surface of the packaging box. The parallel arrangement of the support member 303 and the connecting seat 306 ensures stable support of the fixed push rod 304 and the movable push rod 307, and better clamps them on both sides of the packaging box.

[0047] The design that the minimum distance between the fixed push rod 304 and the movable push rod 307 is the same as the width of the clamped surface of the packaging box ensures the tightness and accuracy of clamping. When there are two movable push rods 307, the movable push rod 307 close to the fixed push rod 304 moves toward the fixed push rod 304 and cooperates with the fixed push rod 304 to unfold the folded packaging box, while the other movable push rod 307 is responsible for pushing the opened packaging box to the bracket 400. This design not only improves the opening efficiency, but also ensures the integrity and accuracy of the packaging box.

[0048] The driving connecting rod in this embodiment includes at least one connecting shaft (a first connecting shaft 308 and a second connecting shaft 309) connected to another sliding seat, and the connecting shaft is connected to the movable push rod 307 through the first connecting rod assembly 310, and the movable push rod 307 is rotated with the relative displacement of the two sliding seats.

[0049] In this embodiment, there are two connecting shafts, namely the first connecting shaft 308 and the second connecting shaft 309, which correspond to the two movable push rods 307 in this embodiment. The two connecting shafts are connected to the two corresponding movable push rods 307 through the first connecting rod assembly 310, ensuring that the relative displacement of the sliding seat can be converted into the rotational movement of the movable push rod 307. With the relative displacement of the two sliding seats, the driving connecting rod drives the movable push rod 307 to rotate toward the fixed push rod 304, thereby achieving the clamping and unfolding of the packaging box, and also achieving the transportation of the packaging box after opening. This design is simple and practical, and effectively improves the reliability and stability of the box opening assembly 300.

[0050] In addition, the fixed push rod 304 is designed with an avoidance hole for docking the suction cup assembly 203 to avoid mutual interference. After the suction cup assembly 203 clamps the material and moves to the position of the fixed push rod 304, the fixed push rod 304 can transport the packaging box to the next process.

[0051] like Figure 6-Figure 8 As shown, the bracket 400 in this embodiment is docked with the box opening component 300 to receive the package box after opening. The bracket 400 includes two groups of rollers 401, which are arranged at intervals. The package box is between the two groups of rollers 401 and connected by friction to prevent the package box from falling. The design of the bracket 400 takes into account the stability of the package box during transportation. The interval arrangement of the two groups of rollers 401 not only ensures that the package box can pass smoothly, but also provides the necessary support force through friction to prevent the package box from falling or tilting during transportation. This design is simple and practical, and effectively improves the reliability and stability of transportation.

[0052] like Figure 6-Figure 8 As shown, the automatic page closing mechanism 500 in this embodiment is located on one side of the bracket 400 and extends to the upper and lower ends of the bracket 400, including a top rod 501, a lever 502, an insert plate 510 and an insert sheet assembly, which are used to close the hinges and bottom cover of the packaging box.

[0053] The automatic closing mechanism 500 is responsible for completely closing the package box after opening. The design of the top rod 501 and the lever 502 is responsible for closing the hinges at the lower end and the other side of the package box in the forward direction, respectively, to ensure that the hinges can fit tightly. The insert plate 510 and the insert sheet assembly are responsible for inserting the bottom cover hinge into the package box to achieve the sealing of the bottom cover. The entire closing process is highly automated, which greatly improves production efficiency and product quality.

[0054] The push rod 501 in this embodiment is arranged below the bracket 400 and parallel to the bracket 400, closing the lower end hinge of the packaging box in the forward direction, and the push rod 501 is provided with an inclined surface with an opening upward on the side facing the packaging box, so as to facilitate folding the corresponding hinge without damaging the surface of the packaging box; The lever 502 in this embodiment is arranged between the push rod 501 and the material taking assembly 200, and closes the folding leaf on the other side of the lower end of the packaging box by rotation; the lever 502 is connected to the lever cylinder 5022 through the second connecting rod assembly 5021, and the lever 502 is rotated in the vertical direction by the telescopic movement of the lever cylinder 5022, so as to close the folding leaf of the packaging box without affecting the movement of the packaging box. The lever 502 is connected to the lever cylinder 5022 through the second connecting rod assembly 5021, so as to ensure the rotation of the lever 502 in the vertical direction. The telescopic movement of the lever cylinder 5022 drives the rotation of the lever 502, so as to close the folding leaf on the other side of the packaging box. This design not only avoids the interference of the lever 502 with the packaging box when closing the folding leaf, but also improves the efficiency and accuracy of closing the leaf.

[0055] The automatic page closing mechanism 500 also includes a fixed frame 504, which includes an L-shaped horizontal section and a vertical section. A horizontally movable fourth sliding seat 509 is provided on the horizontal section of the fixed frame 504. The fourth sliding seat 509 is connected to the second telescopic drive 5091 and moves in a direction perpendicular to the side wall of the bracket 400. The plug plate 510 is fixed to the fourth sliding seat 509 through a bracket.

[0056] The fixed frame 504 is an L-shaped support structure, which provides a horizontal section for installing the fourth sliding seat 509 and a vertical section for installing other closing components. The fourth sliding seat 509 is horizontally moved by the second telescopic drive 5091, ensuring that the plug plate 510 can accurately drive the bottom cover of the packaging box to fold and flip. The plug plate 510 is fixed to the fourth sliding seat 509 by a bracket, ensuring the synchronous movement and stability of the plug plate 510 and the fourth sliding seat 509. This design improves the reliability and stability of the automatic closing mechanism 500.

[0057] In another embodiment, the automatic closing mechanism 500 also includes a positioning device for intermittently positioning the packaging box. Since the upper and lower ends of the bracket 400 are both open structures, if the packaging box is not positioned during the closing process, the subsequent positioning effect will be affected. The positioning device includes a folding clamping assembly 505 and a clamping claw 5092. The folding clamping assembly 505 is connected to the vertical section of the fixed frame 504 through the bracket along the vertical direction. It includes two connecting pieces close to each other. The connecting pieces are consistent with the moving direction of the packaging box and correspond to the moving path of the top cover fold of the packaging box. The two connecting pieces are close to the side of the packaging box and expand outward to facilitate the clamping and positioning of the top cover fold of the packaging box. This design enables the folding clamping assembly 505 to firmly clamp the top cover fold of the packaging box, avoiding the packaging box from moving left and right during the subsequent processing, thereby ensuring the positioning accuracy of the packaging box. At the same time, the vertical movement design of the folding clamping assembly 505 is also convenient for adjustment according to packaging boxes of different sizes, improving the versatility of the equipment.

[0058] The clamping claw 5092 in this embodiment is connected to the fourth sliding seat 509 through a bracket, and intermittently positions and clamps the packaging box as the fourth sliding seat 509 moves. The clamping claw 5092 utilizes the mobile characteristics of the fourth sliding seat 509. When the fourth sliding seat 509 moves toward the bracket 400, the clamping claw 5092 can limit the movement of the packaging box in the forward direction, ensuring that the packaging box remains stable when the insert plate 510 is inserted into the bottom cover fold. When the fourth sliding seat 509 is retracted, the clamping claw 5092 releases the restriction on the packaging box, allowing the packaging box to continue to move forward and enter the next processing link. This intermittent positioning method not only ensures the stability of the packaging box during the processing, but also improves the processing efficiency of the equipment.

[0059] The positioning device ensures the accurate positioning of the packaging box during the processing, and provides strong support for the subsequent insertion of the plug plate 510, the folding and closing of the bottom cover, and other processes. The coordinated use of the folding clamping assembly 505 and the claws 5092 not only improves the positioning accuracy of the packaging box, but also effectively prevents the displacement or deformation of the packaging box due to external forces during the processing, thereby ensuring the processing quality of the product. In addition, the intermittent positioning method of the positioning device also enables the equipment to process the packaging box more efficiently, improving the overall production capacity of the production line.

[0060] In addition, in order to further improve the stability and reliability of the positioning device, a guide rail is also provided on the vertical section of the fixed frame 504 to guide the vertical movement of the folding clamping assembly 505. The design of the guide device not only ensures the movement accuracy of the folding clamping assembly 505, but also effectively prevents the shaking or deviation of the folding clamping assembly 505 during the movement, thereby improving the overall performance of the device.

[0061] The inserting piece assembly in this embodiment includes a first inserting piece 507 and a second inserting piece 508 which move back and forth in the vertical direction. The first inserting piece 507 cooperates with the tow bar 506 to bend the inserting tongue, and the second inserting piece 508 is used to drive the inserting tongue to be inserted into the packaging box.

[0062] The first plug 507 and the second plug 508 are connected to the corresponding driving cylinders (specifically the first plug driving cylinder 5072 and the second plug driving cylinder 5082) through connecting rods (specifically the first connecting rod 5071 and the second connecting rod 5081), respectively. This design enables the plug to be telescopically moved in the vertical direction, thereby achieving precise control of the folding tongue of the bottom cover of the packaging box. The design of the plug assembly takes into account the need for precise control of the force and position during the bending and insertion process of the tongue of the bottom cover of the packaging box. Through cylinder drive and connecting rod transmission, the stable movement of the plug in the vertical direction can be ensured, avoiding damage to the packaging box and improving work efficiency.

[0063] The main function of the first insert 507 in this embodiment is to bend the insert tongue of the bottom cover hinge. When the packaging box is conveyed to the designated position, the first insert 507 moves downward under the drive of the cylinder, contacts the insert tongue of the bottom cover hinge, and applies a certain pressure to bend it to 90 degrees. This action is a key step in the sealing process of the bottom cover of the packaging box, and provides preparation for the subsequent insertion of the insert tongue. The shape and size of the first insert 507 are designed according to the specific shape of the insert tongue of the bottom cover hinge of the packaging box to ensure the smooth progress of the bending process. At the same time, the driving force and moving speed of the cylinder are also adjustable to adapt to packaging boxes of different materials and thicknesses, thereby improving the versatility of the equipment.

[0064] The second plug-in piece 508 in this embodiment is used to drive the bottom cover hinge and the plug-in tongue to move upward and seal the bottom of the packaging box. After the first plug-in piece 507 completes the bending of the plug-in tongue, the second plug-in piece 508 moves upward under the drive of the cylinder to push the bottom cover hinge and the bent plug-in tongue into the packaging box, thereby achieving the sealing of the bottom cover. The moving distance and speed of the second plug-in piece 508 are also precisely controlled to ensure that the bottom cover hinge and the plug-in tongue can be accurately inserted into the packaging box, while avoiding excessive pressure or damage to the packaging box. This design not only improves the sealing of the packaging box, but also ensures the appearance quality of the product.

[0065] The automatic closing mechanism 500 not only includes components for clamping and pushing the packaging box, but also includes a drag rod 506, which reciprocates at the lower end of the bracket 400, and is used to indirectly support the folding pages on both sides of the lower end of the packaging box and locate the position of the tongue. The drag rod 506 in this embodiment is connected to the transmission belt through a connecting rod and a second fixed clamping plate 5061. This connection mode enables the drag rod 506 to move with the movement of the transmission belt, thereby realizing intermittent support of the packaging box. The design of the drag rod 506 takes into account the stability of the packaging box during the transmission process. At the same time, when the lower end of the packaging box loses the supporting effect of the top rod 501 and the lever 502, the two folding pages below the packaging box will still open if there is no support, which affects the subsequent flipping of the bottom cover folding pages. Driven by the transmission belt, the drag rod 506 can move to the lower end of the packaging box at a specific time to provide support for it.

[0066] The tow bar in this embodiment is connected to the transmission belt through the connecting rod and the second fixed clamping plate. This connection mode enables the tow bar to move with the movement of the transmission belt, thereby realizing intermittent support for the packaging box. The design of the tow bar takes into account the stability of the packaging box during the transportation process. At the same time, when the lower end of the packaging box loses the support of the top rod and the lever, the two folds under the packaging box will still open if there is no support, affecting the subsequent flipping of the bottom cover folds. Driven by the transmission belt, the tow bar can move to the lower end of the packaging box at a specific time to provide support for it.

[0067] The moving direction of the drag rod 506 and the moving direction of the packaging box are on the same vertical plane.

[0068] The longitudinal section of the pull rod 506 is a right triangle, and the hypotenuse faces the plug plate 510, that is, its upper end is at a right angle to the end close to the first plug piece 507, and the top continuously presses the two side pages at the lower end of the packaging box, thereby realizing the continuous closure of the hinges on both sides of the packaging box. At the same time, the lower end line of the pull rod 506 and the fold line of the plug tongue are on the same vertical plane, which makes it convenient for the first plug piece 507 to drive the plug tongue to bend, thereby ensuring the smooth bending and insertion of the plug tongue.

[0069] The first plug-in piece 507 is located on one side of the drag rod 506, and cooperates with the drag rod 506 to realize the bending of the plug-in tongue. When the plug-in plate 510 turns the bottom cover hinge of the packaging box to a certain height, the fold line of the plug-in tongue just overlaps with the lower end line of the drag rod 506, and the first plug-in piece 507 moves downward under the drive of the cylinder to bend the plug-in tongue of the bottom cover hinge to 90 degrees. After the bending is completed, since the drag rod 506 is connected to the transmission belt, the drag rod 506 moves away with the movement of the transmission belt, and the second plug-in piece 508 moves vertically under the drive of the cylinder, just inserting the bottom cover hinge into the packaging box. The first plug-in piece 507 and the drag rod 506 are used in conjunction to realize the continuous execution of the two actions of the plug-in tongue bending and the bottom cover insertion. This design not only improves the work efficiency, but also ensures the accuracy and stability of the action. At the same time, the removal of the drag rod 506 also provides enough space for the insertion of the second plug-in piece 508, avoiding interference between components.

[0070] In this embodiment, in order to save space, the first plug 507 and the second plug 508 are connected to the first tongue driving cylinder 5072 and the second tongue driving cylinder 5082 through the corresponding first connecting rod 5071 and the second connecting rod 5081, so that multiple cylinders are gathered together to facilitate subsequent driving.

[0071] In this embodiment, Figure 7 As shown, the automatic closing mechanism 500 also includes a rotatable push plate 503. The push plate 503 is rotatably connected to the rotating shaft 5031, and the rotating shaft 5031 is connected to the fourth sliding seat 509 through the third connecting rod assembly 5032. This design allows the push plate 503 to rotate under the drive of the fourth sliding seat 509, thereby continuously pushing the packaging box to move. Through the movement of the fourth sliding seat 509 and the transmission of the third connecting rod assembly 5032, the push plate 503 can smoothly push the packaging box forward, avoiding stagnation or jamming of the packaging box during the transmission process.

[0072] As the fourth sliding seat 509 moves, the push plate 503 rotates and continuously pushes the packaging box to transport it to the next station. This design not only ensures the continuity of the production line, but also improves work efficiency. The rotation speed and pushing force of the push plate 503 are adjustable to adapt to packaging boxes of different sizes and weights. This flexibility enables the present invention to be applicable to various types of packaging box processing, thereby improving the versatility and practicality of the device.

[0073] The specific working principle is as follows: A folded packaging box is placed on the rack 101. Driven by the rodless cylinder, the sliding push plate 102 pushes the packaging box toward the material taking component 200, so that the material taking component 200 can grab the packaging box through the suction cup component 203 within its moving range. After the material taking component 200 grabs the packaging box, it moves toward the direction of the box opening component 300. After reaching the end of the stroke, the two sliding seats (specifically the second sliding seat 301 and the third sliding seat 302) clamp the packaging box through the fixed push rod 304 and the rotating push rod (composed of the connecting seat 306, the movable push rod 307, the first connecting shaft 308, the second connecting shaft 309 and the first connecting rod assembly 310) under relative displacement. In addition, since the minimum distance between the fixed push rod 304 and the rotating push rod is the width of the clamped surface of the packaging box, the packaging box will also be unfolded with the clamping effect of the rotating push rod and the fixed push rod 304, and the opened packaging box will be transported to the direction of the bracket 400 as the two sliding seats move synchronously. At this time, the lower hinge of the packaging box in the forward direction contacts the top rod 501, thereby achieving closure. Then, driven by the lever cylinder 5022, the lever 502 rotates on the vertical plane to drive the hinge on the other side of the packaging box to close. As the packaging box continues to move, the pull rod 506 is driven by the driving assembly 700 to move to the lower end of the packaging box to continuously close the hinges on both sides. As the packaging box continues to move, the folding leaf clamping assembly 505 in the positioning device can clamp the top cover folding leaf of the packaging box; at the same time, the fourth sliding seat 509 is driven to move by the second telescopic drive 5091, and the claw 5092 can also contact the packaging box, thereby performing double positioning on the packaging box; At the same time, the inserting plate 510 also drives the bottom cover hinge to flip along with the movement of the fourth sliding seat 509; The first inserting piece 507 moves in the vertical direction under the action of the first inserting piece driving cylinder 5072. At the same time, considering the shape of the drag rod 506 and the positional relationship between the drag rod 506 and the first inserting piece 507, the first inserting piece 507 bends the inserting tongue of the bottom cover hinge to 90 degrees. Subsequently, the pull rod 506 is driven by the driving assembly 700 to separate from the bottom cover hinge. At the same time, the second insert 508 is driven by the second insert driving cylinder 5082 to move in the vertical direction, and then the bottom cover side leaf is inserted into the packaging box, thereby sealing the bottom cover of the packaging box. After the above process is completed, the push plate 503 rotates with the movement of the fourth sliding seat 509 to move the packaging box to the ejection station, and driven by the ejection cylinder in the ejection assembly 600, the material is driven to leave.

[0074] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. Automatic page closing mechanism, used for automatic page closing mechanism, characterized in that: include: A bracket for supporting the packaging boxes in order; A push rod, which is arranged at the lower front side of the bracket and parallel to the bracket, and is used to close the hinge at the lower end of the packaging box in the forward direction; A lever, which is arranged at the front side of the top rod and closes the hinge on the other side of the lower end of the packaging box by rotating; The inserting plate is arranged below one side of the bracket and moves horizontally back and forth to close the bottom cover hinge of the packaging box; A drag rod reciprocates at the lower end of the bracket and is used to indirectly support the folding pages on both sides of the lower end of the packaging box and to position the inserting tongue; as well as, The tongue plug assembly comprises two plugs which move back and forth in the vertical direction, one of which cooperates with the tow bar to bend the tongue plug, and the other plug is used to drive the tongue plug to be inserted into the packaging box.

2. The automatic page closing mechanism according to claim 1, characterized in that: It also includes a fixed frame, which includes an L-shaped horizontal section and a vertical section. A fourth sliding seat that moves horizontally is arranged on the horizontal section of the fixed frame. The fourth sliding seat is connected to the second telescopic drive and moves in a direction perpendicular to the side wall of the bracket. The plug plate is fixed to the fourth sliding seat by a bracket.

3. The automatic page closing mechanism according to claim 2, characterized in that: Also included is a positioning device for intermittently positioning the packaging box.

4. The automatic page closing mechanism according to claim 3, characterized in that: The positioning device comprises: The folding leaf clamping assembly is connected to the vertical section of the fixing frame by moving along the vertical direction through the bracket. The folding leaf clamping assembly includes two connecting pieces close to each other, and the two connecting pieces are expanded outwards close to the side of the packaging box to facilitate the clamping and positioning of the cover top fold of the packaging box; The clamping claw is connected to the fourth sliding seat through a bracket, and intermittently positions and clamps the packaging box as the fourth sliding seat moves.

5. The automatic page closing mechanism according to claim 1, characterized in that: The shifting rod is connected to a shifting rod cylinder via a second connecting rod assembly, and the shifting rod is rotated in a vertical direction by the extension and retraction of the shifting rod cylinder.

6. The automatic page closing mechanism according to claim 1, characterized in that: The tongue assembly includes a first plug-in piece and a second plug-in piece, which are respectively connected to corresponding driving cylinders through connecting rods to achieve telescopic movement in the vertical direction. The first plug-in piece is used to bend the tongue of the bottom cover hinge, and the second plug-in piece is used to drive the bottom cover hinge and the tongue to move upward and seal the bottom of the packaging box.

7. The automatic page closing mechanism according to claim 2, characterized in that: It also includes a rotatable push plate, which is rotatably connected to the rotating shaft, and the rotating shaft is connected to the fourth sliding seat through the third connecting rod assembly. As the fourth sliding seat moves, the rotating plate is driven to rotate to continuously push the packaging box to move.

8. The automatic page closing mechanism according to claim 2, characterized in that: The longitudinal section of the tow bar is a right triangle, with the hypotenuse facing the plug plate, and the lower end line of the tow bar and the fold line of the plug tongue are on the same vertical plane.

9. The automatic page closing mechanism according to claim 2, characterized in that: The upper and lower ends of the bracket are both open structures.

10. The automatic page closing mechanism according to claim 2, characterized in that: It also includes a driving assembly for driving the drag rod to move back and forth, and the moving direction of the drag rod and the moving direction of the packaging box are on the same vertical plane.

Images