A sealing mechanism

Abstract

The present invention relates to a box sealing mechanism, comprising: a base, a rotating frame and an upper fixed plate; the rotating frame rotates relative to the base; the rotating frame is provided with a plurality of placement slots for placing cartons; the upper fixed plate is fixed to the base; the rotating frame is located between the upper fixed plate and the base; a box sealing mechanism also includes: an inserting edge bending mechanism, a box cover and box ear bending mechanism and a box cover closing mechanism; the inserting edge bending mechanism includes: a first supporting cylinder, a first supporting cylinder push plate, a second supporting cylinder, a second supporting cylinder push plate, a third bending cylinder and a third bending cylinder push plate; the box cover and box ear bending mechanism includes: a box cover bending guide rod that contacts the box cover and guides the box cover to bend when the rotating frame rotates relative to the base, a box ear bending guide rod that guides the box ear located in the front to bend when the rotating frame rotates relative to the base, and a box ear pre-bending mechanism that pushes the box ear located in the rear to bend. The invention is beneficial in that it can automatically seal boxes with high efficiency.

Description

Technical Field

[0001] The invention relates to a box sealing mechanism, in particular to a box sealing mechanism for a paper box with a thinner and softer box wall. Background Art

[0002] The box sealing mechanism is usually composed of a base and a rotating frame. The rotating frame rotates relative to the base to achieve the change of the working position.

[0003] Sealing is an important step in product packaging and shipment. Traditional sealing mechanisms have low sealing efficiency. Summary of the invention

[0004] The object of the present invention is to provide a box sealing mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A carton sealing mechanism comprises: a base and a rotating frame; the rotating frame rotates relative to the base; the rotating frame is provided with a plurality of placement slots for placing cartons;

[0007] A box sealing mechanism further includes: an upper fixed plate; the upper fixed plate is fixed to a base; a rotating frame is located between the upper fixed plate and the base;

[0008] A box sealing mechanism also includes: an edge inserting and bending mechanism, a box cover and box ear bending mechanism and a box cover closing mechanism;

[0009] The edge-insertion bending mechanism includes: a first supporting cylinder, a first supporting cylinder push plate, a second supporting cylinder, a second supporting cylinder push plate, a third bending cylinder and a third bending cylinder push plate; the first supporting cylinder drives the first supporting cylinder push plate to move; the second supporting cylinder drives the second supporting cylinder push plate to move; the first supporting cylinder push plate and the second supporting cylinder push plate clamp the box cover from both sides; the third bending cylinder drives the third bending cylinder push plate to move; the first supporting cylinder is installed to the base; the second supporting cylinder is installed to the upper fixed plate; the third bending cylinder is installed to the cylinder slider of the second supporting cylinder so that the second supporting cylinder The cylinder drives the third bending cylinder to move; in the process that the first supporting cylinder push plate and the second supporting cylinder push plate are pushed to clamp the box cover, the third bending cylinder push plate contacts the insert edge and forces the insert edge to bend relative to the box cover; the third bending cylinder drives the third bending cylinder push plate to contact and squeeze the insert edge to increase the bending of the insert edge; the direction in which the first supporting cylinder drives the first supporting cylinder push plate to move is parallel to the direction in which the second supporting cylinder drives the second supporting cylinder push plate to move; the direction in which the third bending cylinder drives the third bending cylinder push plate to move is perpendicular to the direction in which the first supporting cylinder drives the first supporting cylinder push plate to move;

[0010] The box cover and box ear bending mechanism comprises: a box cover bending guide rod which contacts with the box cover and guides the box cover to bend when the rotating frame rotates relative to the base, a box ear bending guide rod which guides the box ear located in the front to bend when the rotating frame rotates relative to the base, and a box ear pre-bending mechanism which pushes the box ear located in the rear to bend; the box cover bending guide rod is fixed to the upper fixed plate; the box ear bending guide rod is fixed to the base; the box ear pre-bending mechanism comprises: a rotating cylinder and a pre-bending member which contacts with the box ear located in the rear and pushes the box ear to bend; the rotating cylinder drives the pre-bending member to rotate and forces the box ear located in the rear to bend toward the inner side of the box body so that it can extend under the box ear bending guide rod; the rotating cylinder is installed to the base;

[0011] The box lid closing mechanism includes: a box expansion mechanism for expanding the box body to facilitate the insertion of the edge into the box body and an insertion edge insertion mechanism for pushing the insertion edge into the box body to complete the closing action; the box body expansion mechanism includes: an expansion cylinder and a pneumatic suction cup for adsorbing the box body; the expansion cylinder drives the pneumatic suction cup to move; the expansion cylinder is installed to the base; the insertion edge insertion mechanism includes: an insertion edge insertion guide, a guide driving cylinder, a lower pressure cover push block and a lower pressure cover push block cylinder; the guide driving cylinder drives the insertion edge insertion guide to be inserted into the box body; the lower pressure cover push block cylinder drives the lower pressure cover push block to move, thereby pushing the box lid to move so that the insertion edge is inserted into the box body along the insertion edge insertion guide; the guide driving cylinder and the lower pressure cover push block cylinder are installed to the base.

[0012] As a further solution of the present invention: the direction in which the guide member driving cylinder drives the edge inserting guide member to move is parallel to the direction in which the lower cover pressing push block cylinder drives the lower cover pressing push block to move.

[0013] As a further solution of the present invention: the box lid closing mechanism also includes: a box lid horizontal pressing mechanism for pressing the box lid; the box lid horizontal pressing mechanism includes: a horizontal pressing plate and a horizontal pressing plate cylinder; the horizontal pressing plate cylinder pushes the horizontal pressing plate to move so that the horizontal pressing plate contacts and presses the box lid; the horizontal pressing plate cylinder is installed to the upper fixed plate.

[0014] As a further solution of the present invention: the box lid closing mechanism also includes: a blocking mechanism for blocking the movement of the box body when the pneumatic suction cup adsorbs the box body; the blocking mechanism includes: a blocking block cylinder and a blocking block for contacting the box body; the blocking block cylinder drives the blocking block to move; the pneumatic suction cup is located above the blocking block; the blocking block cylinder is installed to the base.

[0015] As a further solution of the present invention: the box lid closing mechanism also includes: a positioning rod for auxiliary positioning at the inserting edge and a positioning rod cylinder for driving the positioning rod to move; the positioning rod cylinder drives the positioning rod to move and can extend to the bottom of the box lid; the positioning rod cylinder is installed on the base.

[0016] As a further solution of the present invention: a carton sealing mechanism also includes: a carton taking mechanism for taking out the sealed carton from the placement slot; the carton taking mechanism includes: a carton taking cylinder and a carton taking push block for contacting the carton and pushing the carton out of the placement slot; the carton taking cylinder drives the carton taking push block to move; the carton taking cylinder is installed on the base.

[0017] As a further solution of the present invention: a box sealing mechanism also includes: a conveying device for guiding the movement of the carton taken out by the box taking mechanism; the conveying device includes a plurality of conveying wheels.

[0018] As a further solution of the present invention: the height of the side of the conveying device close to the placement groove is higher than the height of the side of the conveying device away from the placement groove.

[0019] As a further solution of the present invention: a box sealing mechanism also includes: a box out pressing mechanism for pressing the box cover before the carton is taken out by the box taking mechanism; the box out pressing mechanism includes: a box out pressing plate and a box out pressing cylinder; the box out pressing cylinder drives the box out pressing plate to move; the box out pressing plate is installed on the base.

[0020] As a further solution of the present invention: the direction in which the box discharging pressing plate is driven by the box discharging pressing cylinder is perpendicular to the direction in which the box discharging pushing block is driven by the box discharging cylinder.

[0021] Compared with the prior art, the invention has the beneficial effects of automatic box sealing and high efficiency.

[0022] The edge bending mechanism ensures that during the bending process of the edge, other parts of the box cover except the edge will not bend and deform due to external forces, thus solving the problem that the flexible box is easily deformed during the bending of the edge.

[0023] The third bending cylinder push plate contacts and squeezes the edge to improve the reliability of edge bending.

[0024] The box cover and box ear bending mechanism ensures that the box cover and the box ears on both sides of the carton always remain bent toward the inside of the box body during the rotation of the carton.

[0025] The box cover closing mechanism ensures that the insert edge can be accurately inserted into the box body of the carton, and the sealing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a sealing mechanism;

[0027] Figure 2 yes Figure 1 A schematic diagram of a sealing mechanism from another perspective;

[0028] Figure 3 yes Figure 1A schematic diagram of a box cover and box ear bending mechanism, a box cover closing mechanism, a box taking mechanism and a conveying device of a box sealing mechanism;

[0029] Figure 4 yes Figure 1 A schematic diagram of an inserting and bending mechanism of a box sealing mechanism;

[0030] Figure 5 yes Figure 4 Schematic diagram of another perspective of the structure;

[0031] Figure 6 yes Figure 1 A schematic diagram of the installation of a box taking mechanism, a conveying device and a box discharging and pressing mechanism of a box sealing mechanism;

[0032] Figure 7 yes Figure 1 A schematic diagram of a box cover and box ear bending mechanism of a box sealing mechanism;

[0033] Figure 8 yes Figure 7 Schematic diagram of another perspective of the structure;

[0034] Fig. 9 yes Figure 1 A three-dimensional diagram of a box cover closing mechanism of a box sealing structure;

[0035] Fig.10 yes Figure 1 A front view of a box cover closing mechanism of a box sealing structure;

[0036] Fig.11 yes Figure 1 A schematic diagram of the working principles of a box taking mechanism, a conveying device and a box discharging pressing mechanism of a box sealing structure;

[0037] Fig.12 yes Figure 3 A magnified view of the structure in the middle;

[0038] Fig.13 yes Figure 3 Magnified view of the structure at B.

[0039] Sealing mechanism 100, base 10, rotating frame 20, placement slot 21, upper fixed plate 30, edge insertion bending mechanism 40, first supporting cylinder 41, first supporting cylinder push plate 42, second supporting cylinder 43, cylinder slider 431, second supporting cylinder push plate 44, third bending cylinder 45, third bending cylinder push plate 46, box cover and box ear bending mechanism 50, box cover bending guide rod 51, box ear bending guide rod 52, box ear pre-bending mechanism 53, rotating cylinder 531, pre-bending member 532, box cover closing mechanism 60, box body expansion mechanism 61, expansion cylinder 611, pneumatic suction cup 61 2. Edge insertion mechanism 62, edge insertion guide 621, guide driving cylinder 622, lower pressing cover push block 623, lower pressing cover push block cylinder 624, box cover horizontal pressing mechanism 63, horizontal pressing plate 631, horizontal pressing plate cylinder 632, blocking mechanism 64, blocking block cylinder 641, blocking block 642, positioning rod 65, positioning rod cylinder 66, box taking mechanism 70, box taking cylinder 71, box taking push block 72, conveying device 80, box out pressing mechanism 90, box out pressing plate 91, box out pressing cylinder 92, carton 200, box cover 210, edge insertion 220, box ear 230. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 13 In an embodiment of the present invention, a carton sealing mechanism 100 includes a base 10 and a rotating frame 20. The rotating frame 20 rotates relative to the base 10. The rotating frame 20 is provided with a plurality of placement slots 21. The placement slots 21 are used to place cartons 200.

[0042] The box sealing mechanism 100 further includes: an upper fixing plate 30. The upper fixing plate 30 is fixed to the base 10. The rotating frame 20 is located between the upper fixing plate 30 and the base 10. The box sealing mechanism 100 further includes: an edge inserting and bending mechanism 40, a box cover and ear bending mechanism 50, and a box cover closing mechanism 60.

[0043] The inserting and bending mechanism 40 includes: a first supporting cylinder 41, a first supporting cylinder push plate 42, a second supporting cylinder 43, a second supporting cylinder push plate 44, a third bending cylinder 45 and a third bending cylinder push plate 46. The first supporting cylinder 41 drives the first supporting cylinder push plate 42 to move. The second supporting cylinder 43 drives the second supporting cylinder push plate 44 to move. The first supporting cylinder push plate 42 and the second supporting cylinder push plate 44 clamp the box cover 210 from both sides. The third bending cylinder 45 drives the third bending cylinder push plate 46 to move. The first supporting cylinder 41 is mounted to the base 10. The second supporting cylinder 43 is mounted to the upper fixed plate 30. The third bending cylinder 45 is mounted to the cylinder slider 431 of the second supporting cylinder 43 so that the second supporting cylinder 43 pushes the third bending cylinder 45 to move. In the process of the first supporting cylinder push plate 42 and the second supporting cylinder push plate 44 being pushed to clamp the box cover 210, the third bending cylinder push plate 46 contacts the insert edge 220 to force the insert edge 220 to bend relative to the box cover 210. The third bending cylinder 45 pushes the third bending cylinder push plate 46 to contact and squeeze the insert edge 220 to increase the bending of the insert edge 220. The direction in which the first supporting cylinder 41 drives the first supporting cylinder push plate 42 to move is parallel to the direction in which the second supporting cylinder 43 drives the second supporting cylinder push plate 44 to move. The direction in which the third bending cylinder 45 drives the third bending cylinder push plate 46 to move is perpendicular to the direction in which the first supporting cylinder 41 drives the first supporting cylinder push plate 42 to move.

[0044] The working principle of the insert edge bending mechanism 40 is as follows: First, the first supporting cylinder 41 drives the first supporting cylinder push plate 42 to move toward the box cover 210 of the carton 200, so that the first supporting cylinder push plate 42 can contact the box cover 210. Secondly, the second supporting cylinder 43 drives the second supporting cylinder push plate 44 to move toward the box cover 210 of the carton 200. Since the third bending cylinder 45 is installed on the cylinder slider 431 of the second supporting cylinder 43, the second supporting cylinder 43 can drive the second supporting cylinder push plate 44 and the third bending cylinder push plate 46 to move toward the box cover 210 of the carton 200. In the process of the first supporting cylinder push plate 42 and the second supporting cylinder push plate 44 being pushed to clamp the box cover 210, the third bending cylinder push plate 46 contacts the insert edge 220 to force the insert edge 220 to bend relative to the box cover 210. The first supporting cylinder push plate 42 and the second supporting cylinder push plate 44 can clamp the box cover 210 to ensure that during the bending process of the inserting edge 220, other parts of the box cover 210 except the inserting edge 220 will not bend or deform due to external force.

[0045] The box cover and box ear bending mechanism 50 includes: a box cover bending guide rod 51, a box ear bending guide rod 52 and a box ear pre-bending mechanism 53. The box cover bending guide rod 51 contacts the box cover 210 to guide the box cover 210 to bend when the rotating frame 20 rotates relative to the base 10. The box ear bending guide rod 52 guides the box ear 230 located in the front to bend when the rotating frame 20 rotates relative to the base 10. The box ear pre-bending mechanism 53 pushes the box ear 230 located in the rear to bend. The box cover bending guide rod 51 is fixed to the upper fixed plate 30. The box ear bending guide rod 52 is fixed to the base 10. The box ear pre-bending mechanism 53 includes: a rotating cylinder 531 and a pre-bending member 532. The pre-bending member 532 is used to contact the box ear 230 located in the rear to push the box ear 230 to bend. The rotating cylinder 531 drives the pre-bending member 532 to rotate, forcing the box ear 230 located at the rear to bend toward the inner side of the box body so that it can extend under the box ear bending guide rod 52. The rotating cylinder 531 is installed on the base 10.

[0046] The working principle of the box cover and box ear bending mechanism 50: in the process of the carton 200 rotating from the position of the inserting edge bending mechanism 40 to the position of the box cover and box ear bending mechanism 50, the box ear bending guide rod 52 can guide the box ear 230 located in the front to bend. In the process of the carton 200 rotating, the box ear bending guide rod 52 always keeps the box ear 230 located in the front in a state of squeezing, ensuring that the box ear 230 located in the front always keeps a state of bending toward the inner side of the box body. The rotary cylinder 531 drives the pre-bending member 532 to rotate so that the pre-bending member 532 contacts the box ear 230 located at the rear and squeezes the box ear 230 located at the rear to force the box ear 230 located at the rear to bend toward the inner side of the box body, so that the position of the box ear 230 located at the rear is lower than the box ear bending guide rod 52. In the process of the carton 200 rotating, the box ear 230 located at the rear can contact the box ear bending guide rod 52 and is always squeezed by the box ear bending guide rod 52 to keep the state of bending toward the inner side of the box body. The box cover bending guide rod 51 contacts the box cover 210 and exerts a downward force on the box cover 210 to bend the box cover 210 toward the inner side of the box body. During the rotation of the carton 200, the box cover bending guide rod 51 always contacts the box cover 210 and presses the box cover 210 to keep the box cover 210 always bent toward the inner side of the box body. Specifically, the box cover and box ear bending mechanism 50 ensures that during the rotation of the carton 200, the box cover 210 and the box ears 230 on both sides of the carton 200 always remain bent toward the inner side of the box body.

[0047] The box cover closing mechanism 60 includes: a box body expansion mechanism 61 and an inserting edge insertion mechanism 62. The box body expansion mechanism 61 is used to expand the box body to facilitate the insertion of the inserting edge 220 into the box body. The inserting edge insertion mechanism 62 pushes the inserting edge 220 into the box body to complete the closing action.

[0048] The box expansion mechanism 61 includes: an expansion cylinder 611 and a pneumatic suction cup 612. The pneumatic suction cup 612 is used to absorb the box. The expansion cylinder 611 drives the pneumatic suction cup 612 to move. The expansion cylinder 611 is installed to the base 10. The edge insertion mechanism 62 includes: an edge insertion guide 621, a guide driving cylinder 622, a lower press cover push block 623 and a lower press cover push block cylinder 624. The guide driving cylinder 622 drives the edge insertion guide 621 to be inserted into the box body. The lower press cover push block cylinder 624 drives the lower press cover push block 623 to move, thereby pushing the box cover 210 to move so that the edge 220 is inserted into the box body along the edge insertion guide 621. The guide driving cylinder 622 and the lower press cover push block cylinder 624 are installed to the base 10. Specifically, the direction in which the guide driving cylinder 622 drives the edge inserting guide 621 to move is parallel to the direction in which the lower cover pressing push block cylinder 624 drives the lower cover pressing push block 623 to move.

[0049] As a specific embodiment, the box cover closing mechanism 60 further includes: a box cover horizontal pressing mechanism 63. The box cover horizontal pressing mechanism 63 is used to press the box cover 210. The box cover horizontal pressing mechanism 63 includes: a horizontal pressing plate 631 and a horizontal pressing plate cylinder 632. The horizontal pressing plate cylinder 632 pushes the horizontal pressing plate 631 to move so that the horizontal pressing plate 631 contacts and presses the box cover 210. The horizontal pressing plate cylinder 632 is installed to the upper fixing plate 30.

[0050] As a specific embodiment, the box cover closing mechanism 60 further includes: a blocking mechanism 64. The blocking mechanism 64 is used to block the box body from moving when the pneumatic suction cup 612 adsorbs the box body. The blocking mechanism 64 includes: a blocking block cylinder 641 and a blocking block 642. The blocking block 642 is used to contact the box body. The blocking block cylinder 641 drives the blocking block 642 to move. The pneumatic suction cup 612 is located above the blocking block 642. The blocking block cylinder 641 is installed to the base 10.

[0051] As a specific embodiment, the box cover closing mechanism 60 also includes: a positioning rod 65 and a positioning rod cylinder 66. The positioning rod 65 is used to assist in positioning the insert edge 220. The positioning rod cylinder 66 drives the positioning rod 65 to move. The positioning rod cylinder 66 drives the positioning rod 65 to move so as to extend to the bottom of the box cover 210. The positioning rod cylinder 66 is installed to the base 10. During the insertion process of the insert edge insert guide 621, the box cover 210 is prevented from bending and deforming. Before the lower cover pressing push block 623 is pressed down, the positioning rod cylinder 66 drives the positioning rod 65 to be withdrawn from the bottom of the box cover 210 to avoid blocking the movement of the lower cover pressing push block 623.

[0052] The working principle of the box cover closing mechanism 60 is as follows: first, the expansion cylinder 611 drives the pneumatic suction cup 612 to move toward the box body of the carton 200 so that the pneumatic suction cup 612 contacts the box body of the carton 200. The pneumatic suction cup 612 absorbs the box body of the carton 200 so that the side of the box body of the carton 200 away from the box cover 210 bulges or arches outward. The blocking mechanism 64 blocks the movement of the box body of the carton 200 when the pneumatic suction cup 612 absorbs the box body of the carton 200, and can assist in positioning the box body of the carton 200. Then, after the guide member driving cylinder 622 drives the inserting edge inserting guide member 621 to be inserted into the box body, the lower pressing cover push block cylinder 624 drives the lower pressing cover push block 623 to move toward the box cover 210, so that the lower pressing cover push block 623 can push the box cover 210 to move so that the inserting edge 220 is inserted into the box body of the carton 200 along the inserting edge inserting guide member 621. The box cover horizontal pressing mechanism 63 can press the box cover 210. The box cover closing mechanism 60 ensures that the inserting edge 220 can be accurately inserted into the box body of the carton 200, and the sealing efficiency is high.

[0053] As a specific embodiment, a carton sealing mechanism 100 further includes: a carton taking mechanism 70. The carton taking mechanism 70 is used to take out the sealed carton 200 from the placement slot 21. The carton taking mechanism 70 includes: a carton taking cylinder 71 and a carton taking push block 72. The carton taking push block 72 is used to contact the carton 200 and push the carton 200 out of the placement slot 21. The carton taking cylinder 71 drives the carton taking push block 72 to move. The carton taking cylinder 71 is installed on the base 10.

[0054] As a specific embodiment, a box sealing mechanism 100 further includes: a conveying device 80. The conveying device 80 guides the carton 200 taken out by the box taking mechanism 70 to move. The conveying device 80 includes a plurality of conveying wheels. The height of the side of the conveying device 80 close to the placement slot 21 is higher than the height of the side of the conveying device 80 away from the placement slot 21.

[0055] As a specific embodiment, a box sealing mechanism 100 also includes: a box out pressing mechanism 90. The box out pressing mechanism 90 is used to press the box cover 210 before the box taking mechanism 70 takes out the carton 200. The box out pressing mechanism 90 includes: a box out pressing plate 91 and a box out pressing cylinder 92. The box out pressing cylinder 92 drives the box out pressing plate 91 to move. The box out pressing plate 91 is installed to the base 10. Specifically, the direction in which the box out pressing cylinder 92 drives the box out pressing plate 91 to move is perpendicular to the direction in which the box taking cylinder 71 drives the box taking push block 72 to move.

[0056] Specifically, the box-out pressing mechanism 90 presses the box cover 210 of the carton 200 to improve the box sealing stability.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A box sealing mechanism, comprising: Base and turret; The rotating frame rotates relative to the base; The rotating frame is provided with a plurality of placement slots for placing cartons; Characteristically, the box sealing mechanism further comprises: an upper fixing plate; the upper fixing plate is fixed to the base; the rotating frame is located between the upper fixing plate and the base; The box sealing mechanism also includes: an edge inserting and bending mechanism, a box cover and box ear bending mechanism, and a box cover closing mechanism; The edge-insertion bending mechanism comprises: a first supporting cylinder, a first supporting cylinder push plate, a second supporting cylinder, a second supporting cylinder push plate, a third bending cylinder and a third bending cylinder push plate; the first supporting cylinder drives the first supporting cylinder push plate to move; the second supporting cylinder drives the second supporting cylinder push plate to move; the first supporting cylinder push plate and the second supporting cylinder push plate clamp the box cover from both sides; the third bending cylinder drives the third bending cylinder push plate to move; the first supporting cylinder is installed to the base; the second supporting cylinder is installed to the upper fixed plate; the third bending cylinder is installed to the cylinder slider of the second supporting cylinder so that the second The supporting cylinder drives the third bending cylinder to move; in the process that the first supporting cylinder push plate and the second supporting cylinder push plate are pushed to clamp the box cover, the third bending cylinder push plate contacts the insert edge and forces the insert edge to bend relative to the box cover; the third bending cylinder drives the third bending cylinder push plate to contact and squeeze the insert edge to increase the bending of the insert edge; the direction in which the first supporting cylinder drives the first supporting cylinder push plate to move is parallel to the direction in which the second supporting cylinder drives the second supporting cylinder push plate to move; the direction in which the third bending cylinder drives the third bending cylinder push plate to move is perpendicular to the direction in which the first supporting cylinder drives the first supporting cylinder push plate to move; The box cover and box ear bending mechanism comprises: a box cover bending guide rod which contacts the box cover to guide the box cover to bend when the rotating frame rotates relative to the base, a box ear bending guide rod which guides the box ear located in the front to bend when the rotating frame rotates relative to the base, and a box ear pre-bending mechanism which pushes the box ear located in the rear to bend; the box cover bending guide rod is fixed to the upper fixed plate; the box ear bending guide rod is fixed to the base; the box ear pre-bending mechanism comprises: a rotating cylinder and a pre-bending part which contacts the box ear located in the rear to push the box ear to bend; the rotating cylinder drives the pre-bending part to rotate and forces the box ear located in the rear to bend toward the inside of the box body so that it can extend under the box ear bending guide rod; the rotating cylinder is installed to the base; The box cover closing mechanism comprises: a box expansion mechanism for expanding the box body to facilitate the insertion of the inserting edge into the box body and an inserting edge insertion mechanism for pushing the inserting edge into the box body to complete the closing action; the box body expansion mechanism comprises: an expansion cylinder and a pneumatic suction cup for adsorbing the box body; the expansion cylinder drives the pneumatic suction cup to move; the expansion cylinder is installed to the base; the inserting edge insertion mechanism comprises: an inserting edge insertion guide, a guide driving cylinder, a lower pressing cover pushing block and a lower pressing cover pushing block cylinder; the guide driving cylinder drives the inserting edge insertion guide to be inserted into the box body; the lower pressing cover pushing block cylinder drives the lower pressing cover pushing block to move, thereby pushing the box cover to move so that the inserting edge is inserted into the box body along the inserting edge insertion guide; the guide driving cylinder and the lower pressing cover pushing block cylinder are installed to the base; The box cover closing mechanism also includes: a box cover horizontal pressing mechanism for pressing the box cover; the box cover horizontal pressing mechanism includes: a horizontal pressing plate and a horizontal pressing plate cylinder; the horizontal pressing plate cylinder pushes the horizontal pressing plate to move so that the horizontal pressing plate contacts and presses the box cover; the horizontal pressing plate cylinder is installed on the upper fixed plate; The box cover closing mechanism also includes: a blocking mechanism for blocking the movement of the box body when the pneumatic suction cup adsorbs the box body; the blocking mechanism includes: a blocking block cylinder and a blocking block for contacting the box body; the blocking block cylinder drives the blocking block to move; the pneumatic suction cup is located above the blocking block; and the blocking block cylinder is installed to the base.

2. A box sealing mechanism according to claim 1, characterized in that: The direction in which the guide driving cylinder drives the edge inserting guide to move is parallel to the direction in which the lower press-closed cover pushing block cylinder drives the lower press-closed cover pushing block to move.

3. A box sealing mechanism according to claim 1, characterized in that: The box cover closing mechanism also includes: a positioning rod for auxiliary positioning at the inserting edge and a positioning rod cylinder driving the positioning rod to move; the positioning rod cylinder drives the positioning rod to move so that it can extend under the box cover; the positioning rod cylinder is installed on the base.

4. A box sealing mechanism according to claim 1, characterized in that: The carton sealing mechanism also includes: a box taking mechanism for taking out the sealed carton from the placement slot; the box taking mechanism includes: a box taking cylinder and a box taking push block for contacting the carton and pushing the carton out of the placement slot; the box taking cylinder drives the box taking push block to move; the box taking cylinder is installed on the base.

5. A box sealing mechanism according to claim 4, characterized in that: The box sealing mechanism further comprises: a conveying device for guiding the movement of the carton taken out by the box taking mechanism; the conveying device comprises a plurality of conveying wheels.

6. A box sealing mechanism according to claim 5, characterized in that: The height of the side of the conveying device close to the placement groove is higher than the height of the side of the conveying device away from the placement groove.

7. A box sealing mechanism according to claim 4, characterized in that: The box sealing mechanism also includes: a box out pressing mechanism for pressing the box cover before the box taking mechanism takes out the carton; the box out pressing mechanism includes: a box out pressing plate and a box out pressing cylinder; the box out pressing cylinder drives the box out pressing plate to move; the box out pressing plate is installed on the base.

8. A box sealing mechanism according to claim 7, characterized in that: The direction in which the box-out pressing plate is driven by the box-out pressing cylinder to move is perpendicular to the direction in which the box-out pushing block is driven by the box-out cylinder to move.

Images