Box closing device of boxing machine

Abstract

The utility model discloses a box closing device of a boxing machine, which comprises a moving mechanism, a lug folding mechanism, a cover folding mechanism, a tongue folding mechanism and a tongue inserting mechanism, the lug folding mechanism, the cover folding mechanism, the tongue folding mechanism and the tongue inserting mechanism are connected with the moving mechanism, the moving mechanism comprises a moving frame, and the moving frame can move to a box closing position; the lug folding mechanism comprises two lug folding assemblies, the two lug folding assemblies are oppositely arranged, the two lug folding assemblies can relatively move to be close to or away from each other, and the two lug folding assemblies are used for pushing two folding lugs of a paper box correspondingly; the cover folding mechanism can move to be close to the lug folding mechanism, and the cover folding mechanism and the lug folding mechanism are matched to bend the cover plate. The tongue folding mechanism can move to be close to the lug folding mechanism, and the tongue folding mechanism and the lug folding mechanism are matched to bend a tongue piece of the cover plate. The tongue inserting mechanism can move to be close to the opening of the paper box, and the tongue inserting mechanism is used for pushing the cover plate. According to the utility model, the collaborative operation capability of each action part can be improved, so that the box closing efficiency and the box closing quality are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cartoning equipment, and in particular to a carton closing device for a cartoning machine. Background Technology

[0002] Paper boxes, as a common packaging material, are widely used in various stages of industrial production.

[0003] In automated cartoning production, the cartoning mechanism can pack the product into the carton and close the opening of the carton, thus facilitating the transfer and transportation of the product.

[0004] Conventionally, a cartoning machine includes a carton forming mechanism, a carton feeding mechanism, and a carton closing mechanism. The carton forming mechanism transforms the carton from a flat shape into a box shape. The carton feeding mechanism feeds the product to be cartoned into the carton. The carton closing mechanism closes the opening of the carton. The carton closing mechanism includes a first folding lug assembly, a second folding lug assembly, and a tongue insertion assembly, which are distributed at different stations along the carton transport path. During the automatic cartoning process, the carton moves sequentially to the first folding lug assembly, the second folding lug assembly, and the tongue insertion assembly along the conveyor mechanism. The first folding lug assembly folds the left (right) lug of the carton towards the opening, the second folding lug assembly folds the right (left) lug of the carton towards the opening, and the tongue insertion assembly inserts the tongue of the carton into the opening, completing the carton closing step.

[0005] Therefore, in existing automatic cartoning machines, the first folding ear assembly, the second folding ear assembly, and the tongue assembly of the closing mechanism all work independently at their respective workstations without any cooperation between them. Furthermore, the position of the carton changes constantly during the closing process, making it prone to tilting. The left and right ears or tongues of the carton are far from the standard working position, which is not conducive to the folding ear assembly and the tongue assembly completing the corresponding actions, resulting in problems such as closing failure and low closing efficiency. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a box-closing device for a cartoning machine, in which each working component can operate at the same station, improving the collaborative operation capability of each working component, thereby improving box-closing efficiency and quality.

[0007] A box-closing device for a cartoning machine according to an embodiment of the present invention includes: an ear-folding mechanism comprising two ear-folding components arranged opposite to each other, the two ear-folding components being movable toward each other to fold the two ears of the carton toward the opening of the carton; a lid-folding mechanism movable toward the ear-folding mechanism, the lid-folding mechanism and the ear-folding mechanism cooperating to bend a lid plate to fold the lid plate toward the opening of the carton; a tongue-folding mechanism movable toward the ear-folding mechanism, the tongue-folding mechanism and the ear-folding mechanism cooperating to bend the tongue of the lid plate to face the opening of the carton; and an insertion tongue mechanism movable toward the opening of the carton, the insertion tongue mechanism being used to insert the tongue of the lid plate into the opening of the carton.

[0008] A carton closing device for a cartoning machine according to an embodiment of the present invention has at least the following beneficial effects:

[0009] 1. This utility model features a folding ear mechanism with two folding ear components. These components move closer together and fold the two ears of the cardboard box towards the opening. The two folding ear components work simultaneously, which improves the folding efficiency of the cardboard box.

[0010] 2. This utility model, by setting a folding mechanism, ensures that after the folding is completed, both folding lugs are close to the opening of the carton. The folding mechanism moves closer to the folding lugs, and the folding mechanism and folding lugs work together to clamp the carton's cover plate, forming a fixed acute angle between the cover plate and the plane where the carton's opening is located. This ensures that the bending angle of the cover plate of each carton is consistent, facilitating the subsequent tongue-folding mechanism to fold the tongue of the cover plate. This avoids incomplete bending of the cover plate, which could lead to poor tongue folding and improves the stability of the carton's closing quality. Thus, the folding lugs and the folding mechanism can cooperate with each other, reducing defects caused by the tongue folding process.

[0011] 3. By setting up a folding tongue mechanism, after the cover folding operation is completed and both folding ear components are in a state close to the opening of the cardboard box, the folding tongue mechanism moves closer to the opening of the cardboard box. The folding tongue mechanism can fold the tongue of the cover plate towards the opening of the cardboard box, improving the consistency of the bending angle of the tongue of each cardboard box. At the same time, the folding tongue mechanism keeps the tongue in a bent state, which makes it easy for the subsequent tongue insertion mechanism to accurately insert the tongue into the opening of the cardboard box. Thus, the folding tongue mechanism, folding ear components and cover folding mechanism can cooperate with each other and reduce the defects caused by the folding tongue operation.

[0012] 4. By setting up a tongue insertion mechanism, after the tongue folding operation is completed, the two folding ear components can move away from the opening of the cardboard box. The tongue folding mechanism keeps the tongue in a bent state, while the tongue insertion mechanism moves closer to the opening of the cardboard box, pushes the cover plate to seal the opening of the cardboard box, and inserts the tongue into the inside of the cardboard box to complete the closing operation. The tongue insertion mechanism and the tongue folding mechanism can cooperate with each other to reduce the defects caused by the tongue insertion operation.

[0013] According to an embodiment of the present invention, a box closing device for a cartoning machine includes a folding ear assembly comprising a folding ear block and a first power component for moving the folding ear block, wherein the folding ear block is used to push the ear of the carton.

[0014] The advantages are: by setting up a folding lug and a first power component, the first power component drives the folding lug to move. The folding lug can move along the width direction of the cardboard box. The width direction of the cardboard box can be consistent with the X-axis on the horizontal plane. The two lugs of the cardboard box are arranged horizontally. The folding lug can push the lugs of the cardboard box onto the plane where the opening of the cardboard box is located.

[0015] According to an embodiment of the present invention, a box closing device for a cartoning machine has a first guide surface on one side of the folding lug. The first guide surface is an inclined surface or an arc surface, and the first guide surface is used to abut against the lug of the carton.

[0016] The advantage is that, since the ear positions of each cardboard box differ at the box-closing station, this invention addresses this by setting a first guide surface. The first guide surface can be either a sloping surface or an arc surface. The first guide surface is positioned close to the opening of the cardboard box. The folding ear block abuts against the ear through the first guide surface. As the folding ear block moves closer to the opening of the cardboard box, the distance between the first guide surface and the plane where the opening of the cardboard box is located gradually decreases. This allows the first guide surface to gradually fold the ear towards the plane where the opening of the cardboard box is located, preventing the folding ear block from failing to bend smoothly due to the misalignment of the cardboard box. This greatly reduces defective folding ear designs.

[0017] According to an embodiment of the present invention, a box closing device for a cartoning machine includes a folding block and a second power component that drives the folding block to move. When the folding lug assembly is in a state close to the opening of the carton, the folding block is used to push the lid of the carton.

[0018] The advantages of this invention are: through the folding block and the second power component, the folding block is moved by the second power component. The folding block can move along the thickness direction of the cardboard box, and the thickness direction of the cardboard box can be consistent with the vertical Z-axis. The folding block can push the cover plate to bend close to the opening of the cardboard box, so that the plane where the cover plate and the opening of the cardboard box are located can maintain a fixed acute angle.

[0019] According to an embodiment of the present invention, a box closing device for a cartoning machine has a first inclined surface on the side of the folding lug assembly near the folding cover block, and a second inclined surface on the side of the folding cover block near the folding lug assembly. The second inclined surface and the first inclined surface cooperate to restrict the position of the cover plate.

[0020] The advantages of this invention are: by setting a first inclined surface, when the cover of the cardboard box is close to the opening of the cardboard box, the first inclined surface can abut against the cover. By setting a second inclined surface, the folding block pushes the cover to bend through the second inclined surface, so that the second inclined surface and the first inclined surface cooperate to restrict the position of the cover, ensuring that the bending angle of the cover of each cardboard box is consistent. In addition, the first and second inclined surfaces increase the contact area between the folding lug assembly and the folding block and the cover, respectively, ensuring that the cover is not easily deformed during subsequent folding operations.

[0021] In addition, since the position of the cover plate of each carton is different at the box closing station, the second bevel can adapt to abut against the cover plate in different positions, so that the cover plate can be bent smoothly and reduce the defects caused by the bend of the cover plate.

[0022] According to an embodiment of the present invention, a box closing device for a cartoning machine includes a folding tongue mechanism comprising a folding tongue block and a third power component for moving the folding tongue block. When the folding cover mechanism is in a state close to the opening of the carton, the folding tongue block is used to push the tongue of the cover plate.

[0023] The advantages of this invention are: by setting a folding tongue block and a third power component, the third power component drives the folding tongue block to move. The folding tongue block can move along the length direction of the cardboard box, and the length direction of the cardboard box can be consistent with the horizontal Y-axis. The folding tongue block can bend the tongue of the cover plate towards the opening of the cardboard box, so that the tongue accurately faces the opening of the cardboard box, reducing the occurrence of box closing failure.

[0024] According to an embodiment of the present invention, a box closing device for a cartoning machine includes a folding tongue block having a flat plate portion that can be inserted into the opening of a carton, and the width of the flat plate portion matches that of the opening of the carton.

[0025] The advantages of this invention are: by setting a flat plate, when the folding tongue block bends the tongue, the flat plate can be used to bend the tongue, and the flat plate can be inserted into the inside of the cardboard box. When inserting the tongue, the flat plate can guide the tongue of the cover plate to be inserted into the opening of the cardboard box, so that the tongue can be accurately inserted into the inside of the cardboard box, avoiding the path deviation of the tongue during the movement of the tongue, and reducing the defects caused by the tongue insertion work.

[0026] According to an embodiment of the present utility model, a box closing device for a cartoning machine further includes a suction mechanism. The suction mechanism is connected to the movable frame. The suction mechanism includes a suction component and a fourth power component that drives the suction component to move. The suction component is used to suction the opposite sidewall of the paper box sidewall connected to the cover plate.

[0027] The advantages of this invention are: through the suction mechanism, which is equipped with a suction component and a fourth power component, the suction component is moved by the fourth power component. The thickness direction of the paper box can be aligned with the vertical Z-axis. The suction component can suck up the side wall of the paper box. When the suction component moves away from the paper box, it can lift the side wall of the paper box and prevent the side wall of the paper box from sinking into the inside of the paper box. This makes it easier for the tongue to be inserted into the opening of the paper box and reduces the situation where the tongue cannot be inserted into the opening of the paper box.

[0028] According to an embodiment of the present invention, a box closing device for a cartoning machine includes a tongue mechanism comprising a push block and a fifth power component for moving the push block, wherein the push block is used to push the cover plate of the carton.

[0029] The advantages of this invention are: by setting a push block and a fifth power component, the fifth power component drives the push block to move. The push block can move along the length direction of the paper box, and the length direction of the paper box can be consistent with the horizontal Y-axis. The push block can seal the opening of the paper box with the cover plate and insert the tongue into the opening of the paper box.

[0030] According to an embodiment of the present utility model, a box-closing device for a cartoning machine further includes a moving mechanism. The moving mechanism includes a moving frame and a driving member that moves the moving frame. The moving frame can be moved to the box-closing position. The folding ear mechanism, the folding cover mechanism, the folding tongue mechanism, and the inserting tongue mechanism are mounted on the moving frame.

[0031] The advantages are: by using a moving frame to move the folding ear mechanism, folding cover mechanism, folding tongue mechanism, and inserting tongue mechanism to the closing position, the folding ear mechanism, folding cover mechanism, folding tongue mechanism, and inserting tongue mechanism can perform the closing work in the same station, reducing the number of transfers during the box closing process, saving box transfer time, thereby improving the box closing efficiency, and also avoiding the problem of poor box closing caused by the deviation of the standard working position of the box during the closing process.

[0032] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1This is a schematic diagram of the structure of a box-closing device for a cartoning machine according to an embodiment of the present utility model;

[0035] Figure 2 for Figure 1 An exploded view of a carton closing device for a cartoning machine is shown.

[0036] Figure 3 This is a schematic diagram of the ear and flap folding action of a box closing device of a cartoning machine according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the flapping action of a box-closing device of a cartoning machine according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the lid operation of a box-closing device for a cartoning machine according to an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the folding lug assembly of a box-closing device for a cartoning machine according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of a cardboard box in a carton closing device of a cartoning machine according to an embodiment of the present invention.

[0041] Reference numerals: 100-moving frame, 110-folding ear assembly, 120-folding cover mechanism, 130-folding tongue mechanism, 140-insertion tongue mechanism, 150-folding ear block, 160-first power component, 170-first guide surface, 180-folding cover block, 190-second power component, 200-first inclined surface, 210-second inclined surface, 220-folding tongue block, 230-third power component, 240-flat plate, 250-suction box mechanism, 260-suction assembly, 270-fourth power component, 280-push block, 290-fifth power component, 300-first side plate, 310-second side plate, 320-connecting plate, 330-cardboard box, 340-ear, 350-cover plate, 360-tongue piece. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The following description, in conjunction with the accompanying drawings, describes a box-closing device for a cartoning machine according to an embodiment of the present invention.

[0047] Reference Figure 1 The present invention aims to provide an embodiment of a box-closing device for a cartoning machine.

[0048] In the construction of cardboard box 330, refer to Figure 7 The paper box 330 includes a box body, ears 340 and a cover plate 350. The box body has openings at both ends. Each opening is provided with a cover plate 350 and two ears 340. The two ears 340 are respectively connected to the opposite side walls of the opening of the box body. The cover plate 350 is connected to one side wall of the box body and is located between the two ears 340. The edge of the cover plate 350 away from the box body has a tongue 360.

[0049] It should be noted that the openings at both ends of the box are arranged along the length of the box, and on the plane where the openings are located, the two ears 340 are arranged along the width of the box, and the cover plate 350 is arranged along the thickness of the box.

[0050] Typically, cartoning machines include horizontal disc cartoning machines and vertical disc cartoning machines. Horizontal disc cartoning machines can operate on horizontally placed cardboard boxes 330, with the length direction of the cardboard box 330 being horizontal. Vertical disc cartoning machines can operate on vertically placed cardboard boxes 330, with the length direction of the cardboard box 330 being vertical. In this embodiment, a horizontal disc cartoning machine is taken as an example.

[0051] A box-closing device for a cartoning machine according to an embodiment of the present invention includes an ear-folding mechanism, a lid-folding mechanism 120, a tongue-folding mechanism 130, and a tongue-inserting mechanism 140.

[0052] In some embodiments of this utility model, a moving mechanism is also included. The moving mechanism includes a moving frame 100 and a driving member that moves the moving frame 100. The moving frame 100 can be moved to the closed position. The folding ear mechanism, the folding cover mechanism 120, the folding tongue mechanism 130 and the inserting tongue mechanism 140 are installed on the moving frame 100.

[0053] In addition, the movable frame 100 is also equipped with a slider and a guide rail. The relative sliding of the slider and the guide rail makes the movable frame 100 move smoothly.

[0054] Understandably, by using the movable frame 100 to move the folding ear mechanism, folding cover mechanism 120, folding tongue mechanism 130, and tongue insertion mechanism 140 to the closing position, the folding ear mechanism, folding cover mechanism 120, folding tongue mechanism 130, and tongue insertion mechanism 140 perform the closing work at the same station, reducing the number of transfers during the closing process of the paper box 330, saving the transfer time of the paper box 330, thereby improving the closing efficiency of the paper box 330, and also avoiding the problem of poor closing of the paper box 330 due to the deviation of the standard working position of the paper box 330 during the closing process.

[0055] In some specific embodiments of this utility model, reference is made to Figure 2 The movable frame 100 includes a first side plate 300 and a second side plate 310 disposed opposite to each other, a connecting plate 320 connecting the first side plate 300 and the second side plate 310, two folding ear assemblies 110 respectively disposed on the first side plate 300 and the second side plate 310, and a folding cover mechanism 120, a folding tongue mechanism 130 and a tongue insertion mechanism 140 disposed between the first side plate 300 and the second side plate 310.

[0056] It is understood that in this embodiment, by setting a first side plate 300, a second side plate 310 and a connecting plate 320, two folding ear assemblies 110 are respectively arranged on the first side plate 300 and the second side plate 310. This arrangement makes the folding ear assembly 110 closer to the ear 340 of the paper box 330, which facilitates the folding ear assembly 110 bending the ear 340 of the paper box 330. The folding cover mechanism 120, the folding tongue mechanism 130 and the inserting tongue mechanism 140 are arranged between the first side plate 300 and the second side plate 310. This arrangement makes the folding cover mechanism 120, the folding tongue mechanism 130 and the inserting tongue mechanism 140 work in an orderly manner, and makes the structure of the closing device more compact.

[0057] The folding mechanism includes two folding ear components 110, which are arranged opposite to each other and can move closer to each other so that the two ears 340 of the paper box 330 fold toward the opening of the paper box.

[0058] It is understood that this embodiment sets up a folding mechanism, which consists of two folding components 110. The two folding components 110 move closer to each other and fold the two ears 340 of the paper box 330 toward the opening of the paper box 330 respectively. The two folding components 110 perform the folding work at the same time, which can improve the folding efficiency of the paper box 330.

[0059] In some embodiments of this utility model, reference is made to Figure 1 , Figure 2 and Figure 3 The folding ear assembly 110 includes a folding ear block 150 and a first power component 160 that drives the folding ear block 150 to move. The folding ear block 150 is used to push the ear 340 of the cardboard box 330. It should be noted that the first power component 160 can be powered by a cylinder, and no specific limitation is made here.

[0060] It is understood that in this embodiment, by setting the folding lug 150 and the first power member 160, the first power member 160 drives the folding lug 150 to move. The folding lug 150 can move along the width direction of the cardboard box 330. The width direction of the cardboard box 330 can be consistent with the X-axis on the horizontal plane. The two ears 340 of the cardboard box 330 are arranged horizontally. The folding lug 150 can push the ears 340 of the cardboard box 330 onto the plane where the opening of the cardboard box 330 is located.

[0061] In a further embodiment of this utility model, referring to Figure 3 and Figure 6 The folding ear block 150 has a first guide surface 170 on one side. The first guide surface 170 is a slope or an arc surface. The first guide surface 170 is used to abut against the ear 340 of the cardboard box 330.

[0062] Understandably, since the positions of the ears 340 of each cardboard box 330 differ at the box closing station, this utility model addresses this by setting a first guide surface 170. The shape of the first guide surface 170 can be a sloping surface or an arc surface. The first guide surface 170 is positioned close to the opening of the cardboard box 330. The folding ear block 150 abuts against the ear 340 through the first guide surface 170. As the folding ear block 150 moves closer to the opening of the cardboard box 330, the distance between the first guide surface 170 and the plane where the opening of the cardboard box 330 is located gradually decreases. This allows the first guide surface 170 to gradually fold the ear 340 toward the plane where the opening of the cardboard box 330 is located, preventing the folding ear block 150 from being unable to bend the ear 340 smoothly due to the misalignment of the cardboard box 330. This greatly reduces defective folding ear.

[0063] The folding mechanism 120 is movable and close to the folding ear mechanism. The folding mechanism 120 and the folding ear mechanism cooperate to bend the cover plate 350 so that the cover plate 350 of the paper box 330 folds toward the opening of the paper box 330.

[0064] It is understood that, in this embodiment, by setting the folding mechanism 120, after the folding work is completed, both folding ear components 110 are in a state close to the opening of the paper box 330. The folding mechanism 120 moves closer to the folding ear components 110, and the folding mechanism 120 and the folding ear components 110 can cooperate to clamp the cover plate 350 of the paper box 330, so that the plane where the cover plate 350 and the opening of the paper box 330 are located forms a fixed acute angle, ensuring that the bending angle of the cover plate 350 of each paper box 330 is consistent, which facilitates the subsequent folding tongue mechanism 130 to fold the tongue 360 ​​of the cover plate 350, avoids the cover plate 350 being bent in place and resulting in poor folding tongue, and improves the stability of the closing quality of the paper box 330. Thus, the folding ear components 110 and the folding mechanism 120 can cooperate with each other to reduce the defects caused by the folding tongue.

[0065] In some embodiments of this utility model, reference is made to Figure 1 , Figure 2 and Figure 4 The folding mechanism 120 includes a folding block 180 and a second power component 190 that drives the folding block 180 to move. When the folding ear assembly 110 is in a state close to the opening of the paper box 330, the folding block 180 is used to push the cover plate 180 of the paper box 330. It should be noted that the second power component 190 can be powered by a cylinder, and no specific limitation is made here.

[0066] It is understood that in this embodiment, the folding block 180 and the second power member 190 are used to drive the folding block 180 to move. The folding block 180 can move along the thickness direction of the paper box 330. The thickness direction of the paper box 330 can be consistent with the vertical Z-axis. The folding block 180 can push the cover plate 350 to bend close to the opening of the paper box 330, so that the plane where the cover plate 350 and the opening of the paper box 330 are located can maintain a fixed acute angle.

[0067] In a further embodiment of this utility model, referring to Figure 4 The folding lug assembly 110 has a first inclined surface 200 on the side near the folding cover block 180, and the folding cover block 180 has a second inclined surface 210 on the side near the folding lug assembly 110. The second inclined surface 210 and the first inclined surface 200 cooperate to restrict the position of the cover plate 350.

[0068] Specifically, the first inclined surface 200 may be disposed on the side of the folding lug 150.

[0069] It is understood that, in this embodiment, by setting the first inclined surface 200, when the cover plate 350 of the paper box 330 is close to the opening of the paper box 330, the first inclined surface 200 can abut against the cover plate 350. Then, by setting the second inclined surface 210, the folding block 180 pushes the cover plate 350 to bend through the second inclined surface 210, so that the second inclined surface 210 and the first inclined surface 200 cooperate to restrict the position of the cover plate 350, ensuring that the bending angle of the cover plate 350 of each paper box 330 is consistent, and ensuring that the cover plate 350 is not easily deformed during subsequent flap folding operations.

[0070] In addition, since the position of the cover plate 350 of each cardboard box 330 is different at the box closing station, the second inclined surface 210 can adapt to abut against the cover plate 350 at different positions, so that the cover plate 350 can be bent smoothly and reduce the defects caused by bending the cover plate 350.

[0071] The flap mechanism 130 is movable and close to the ear mechanism. The flap mechanism 130 and the ear mechanism cooperate to bend the tongue 360 ​​of the cover plate 350 so that the tongue 360 ​​of the cover plate 350 faces the opening of the paper box 330.

[0072] It is understood that, in this embodiment, by setting the folding tongue mechanism 130, after the folding operation is completed and both folding ear assemblies 110 are in a state close to the opening of the cardboard box 330, the folding tongue mechanism 130 moves closer to the opening of the cardboard box 330. The folding tongue mechanism 130 can fold the tongue 360 ​​of the cover plate 350 toward the opening of the cardboard box 330, improving the consistency of the bending angle of the tongue 360 ​​of each cardboard box 330. At the same time, the folding tongue mechanism 130 keeps the tongue 360 ​​in a bent state, which makes it easier for the subsequent tongue insertion mechanism 140 to accurately insert the tongue 360 ​​into the opening of the cardboard box 330. Thus, the folding tongue mechanism 130, the folding ear assembly 110 and the folding cover mechanism 120 can cooperate with each other to reduce the defects caused by the folding tongue operation.

[0073] In some embodiments of this utility model, reference is made to Figure 1 , Figure 2 , Figure 4 and Figure 5 The folding mechanism 130 includes a folding block 220 and a third power component 230 that moves the folding block 220. When the cover mechanism 120 is in a state close to the opening of the cardboard box 330, the folding block 220 is used to push the tongue 360 ​​of the cover plate 350. It should be noted that the third power component 230 can be powered by a cylinder, and no specific limitation is made here.

[0074] It is understood that in this embodiment, by setting a folding tongue block 220 and a third power component 230, the third power component 230 drives the folding tongue block 220 to move. The folding tongue block 220 can move along the length direction of the paper box 330. The length direction of the paper box 330 can be consistent with the horizontal Y-axis. The folding tongue block 220 can bend the tongue 360 ​​of the cover plate 350 toward the opening of the paper box 330, so that the tongue 360 ​​is accurately facing the opening of the paper box 330, reducing the occurrence of box closing failure.

[0075] In a further embodiment of this utility model, referring to Figure 5 The flap 220 has a flat section 240 that can be inserted into the opening of the paper box 330, and the width of the flat section 240 matches the width of the opening of the paper box 330.

[0076] It is understood that, in this embodiment, by setting the flat plate 240, when the folding tongue block 220 bends the tongue 360, the flat plate 240 can be used to bend the tongue 360, and the flat plate 240 can be inserted into the inside of the paper box 330. When the tongue is inserted, the flat plate 240 can guide the tongue 360 ​​of the cover plate 350 to be inserted into the opening of the paper box 330, so that the tongue 360 ​​can be accurately inserted into the inside of the paper box 330, avoiding the path deviation of the tongue 360 ​​during the movement of the tongue 360, and reducing the defects caused by the tongue insertion.

[0077] In some embodiments of this utility model, reference is made to Figure 2 and Figure 5 It also includes a suction box mechanism 250, which is connected to the movable frame 100. The suction box mechanism 250 includes a suction component 260 and a fourth power component 270 that drives the suction component 260 to move. The suction component 260 is used to suction the opposite side wall of the side wall of the paper box 330 connected to the cover plate 350. It should be noted that the fourth power component 270 can be powered by a cylinder, which is not specifically limited here.

[0078] It is understood that in this embodiment, the suction mechanism 250 is provided with a suction component 260 and a fourth power component 270. The fourth power component 270 drives the suction component 260 to move. The thickness direction of the paper box 330 can be aligned with the vertical Z-axis. The suction component 260 can suck up the side wall of the paper box 330. When the suction component 260 moves away from the paper box 330, it can lift the side wall of the paper box 330 and prevent the side wall of the paper box 330 from being recessed into the paper box 330. This makes it easier for the tongue 360 ​​to be smoothly inserted into the opening of the paper box 330 and reduces the situation where the tongue 360 ​​cannot be inserted into the opening of the paper box 330.

[0079] The tongue mechanism 140 is movable and close to the opening of the paper box 330. The tongue mechanism 140 is used to insert the tongue 360 ​​of the cover plate 350 into the opening of the paper box 330.

[0080] It is understood that, in this embodiment, by setting the tongue insertion mechanism 140, after the tongue folding operation is completed, the two folding ear assemblies 110 can move away from the opening of the paper box 330, the tongue folding mechanism 130 keeps the tongue 360 ​​in a bent state, the tongue insertion mechanism 140 moves closer to the opening of the paper box 330, pushes the cover plate 350 to close the opening of the paper box 330, and inserts the tongue 360 ​​into the inside of the paper box 330 to complete the closing operation. The tongue insertion mechanism 140 and the tongue folding mechanism 130 can cooperate with each other to reduce the defects caused by the tongue insertion operation.

[0081] In some embodiments of this utility model, reference is made to Figure 5 The tongue mechanism 140 includes a push block 280 and a fifth power member 290 that drives the push block 280 to move. The push block 280 is used to push the cover plate 350 of the cardboard box 330.

[0082] It is understood that in this embodiment, by setting a push block 280 and a fifth power component 290, the fifth power component 290 drives the push block 280 to move. The push block 280 can move along the length of the paper box 330. The push block 280 can cover the opening of the paper box 330 with the cover plate 350 and insert the tongue 360 ​​into the opening of the paper box 330. It should be noted that the fifth power component 290 can be powered by a cylinder, and no specific limitation is made here.

[0083] In summary, the working process of a box-closing device in this example is as follows:

[0084] First, the movable frame 100 moves along the length of the cardboard box 330, and the movable frame 100 moves the folding ear mechanism, the folding cover mechanism 120, the folding tongue mechanism 130 and the inserting tongue mechanism 140 to the closed position.

[0085] Then, the first power component 160 drives the folding ear block 150 to move. The folding ear block 150 can move along the width direction of the cardboard box 330. The width direction of the cardboard box 330 can be consistent with the X-axis on the horizontal plane. The two ears 340 of the cardboard box 330 are arranged horizontally. The folding ear block 150 can push the ears 340 of the cardboard box 330 onto the plane where the opening of the cardboard box 330 is located.

[0086] Next, the second power component 190 drives the folding block 180 to move. The folding block 180 can move along the thickness direction of the paper box 330. The thickness direction of the paper box 330 can be consistent with the vertical Z-axis. The folding block 180 can push the cover plate 350 to bend close to the opening of the paper box 330.

[0087] Next, the third power component 230 drives the folding tongue block 220 to move. The folding tongue block 220 can move along the length direction of the paper box 330. The length direction of the paper box 330 can be consistent with the horizontal Y-axis. The folding tongue block 220 can bend the tongue 360 ​​of the cover plate 350 toward the opening of the paper box 330.

[0088] Secondly, the fourth power component 270 drives the suction component 260 to move. The suction component 260 can move along the thickness direction of the paper box 330. The thickness direction of the paper box 330 can be aligned with the vertical Z-axis. The suction component 260 can suck up the side wall of the paper box 330. When the suction component 260 moves away from the paper box 330, it can lift the side wall of the paper box 330 and prevent the side wall of the paper box 330 from being recessed into the paper box 330.

[0089] Finally, the fifth power component 290 drives the push block 280 to move. The push block 280 can move along the length direction of the paper box 330. The length direction of the paper box 330 can be aligned with the horizontal Y-axis. The push block 280 can cover the opening of the paper box 330 with the cover plate 350 and insert the tongue 360 ​​into the opening of the paper box 330 to complete the closing operation.

[0090] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A box closing device of a cartoning machine, characterized by comprising: The application relates to a carton folding device. The folding device comprises two ear folding assemblies, which are oppositely arranged and can be moved close to each other to fold the two ears of a carton towards the opening of the carton. The folding device further comprises a cover folding assembly, which can be moved close to the ear folding assembly, and the cover folding assembly and the ear folding assembly cooperate to fold the cover of the carton towards the opening of the carton. The folding device further comprises a tongue folding assembly, which can be moved close to the ear folding assembly, and the tongue folding assembly and the ear folding assembly cooperate to fold the tongue of the cover towards the opening of the carton. The folding device further comprises a tongue inserting assembly, which can be moved close to the opening of the carton, and the tongue inserting assembly is used for inserting the tongue of the cover into the opening of the carton.

2. A box closing device of a cartoning machine according to claim 1, characterized in that, The ear folding assembly comprises an ear folding block and a first driving element, which drives the ear folding block to move, and the ear folding block is used for pushing the ears of the carton.

3. A box closing device of a cartoning machine according to claim 2, characterized in that, One side of the ear folding block is provided with a first guide surface, which is a bevel or a circular arc surface, and the first guide surface is used for abutting against the ears of the carton.

4. The box closing device of the cartoning machine according to claim 1, characterized in that, The cover folding assembly comprises a cover folding block and a second driving element, which drives the cover folding block to move, and when the ear folding assembly is close to the opening of the carton, the cover folding block is used for pushing the cover of the carton.

5. A box closing device of a cartoning machine according to claim 4, characterized in that, The side of the ear folding assembly close to the cover folding block is provided with a first bevel, and the side of the cover folding block close to the ear folding assembly is provided with a second bevel, and the second bevel and the first bevel cooperate to limit the position of the cover.

6. The box closing device of a cartoning machine according to claim 1, wherein The tongue folding assembly comprises a tongue folding block and a third driving element, which drives the tongue folding block to move, and when the cover folding assembly is close to the opening of the carton, the tongue folding block is used for pushing the tongue of the cover.

7. A box closing device of a cartoning machine according to claim 6, characterized in that, The tongue folding block is provided with a flat plate part, which can be inserted into the opening of the carton and matches the width of the opening of the carton.

8. The box closing device of a cartoning machine according to claim 1, wherein The folding device further comprises a carton sucking assembly, which comprises a sucking assembly and a fourth driving element, which drives the sucking assembly to move, and the sucking assembly is used for sucking the opposite side wall of the side wall of the carton connected with the cover.

9. The box closing device of a cartoning machine according to claim 1, wherein The tongue inserting assembly comprises a pushing block and a fifth driving element, which drives the pushing block to move, and the pushing block is used for pushing the cover of the carton.

10. The box closing device of a cartoning machine according to claim 1, wherein The folding device further comprises a moving assembly, which comprises a moving frame and a driving element, which drives the moving frame to move, and the moving frame can be moved to a carton closing position, and the ear folding assembly, the cover folding assembly, the tongue folding assembly and the tongue inserting assembly are installed on the moving frame.

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