A sealing device for a triangular arrangement grouped product packaging box

Abstract

The present invention discloses a packet sealing device for a triangular arrangement and grouped product packaging box, including a loading and conveying assembly, a packet sealing and edge folding assembly, a grouping assembly, a grouping handling assembly, and a packet sealing handling assembly. Among them, the connecting part of the package and the supporting edge of the separator are clamped together to achieve adhesion. The grouping device arranges the products into groups, with three products in each group arranged in a triangular state, and the three products in each group of products are put into the positioning holes of the separator together through the grouping handling assembly. After spraying glue on the outer sides of the two connecting edges of the package, the packet sealing handling assembly intervenes in the operation, and the finally packet-sealed packaging box is conveyed to the conveyor belt.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging, and particularly relates to a sealing device for a packaging box.

Background Art

[0002] Currently, the common grouping method for dairy products or other similar beverage products is a rectangular array distribution. With the changes in people's travel and the rich and diverse social occasions, the single demand for dairy products is increasingly tending towards a medium portion state, that is, the number of dairy products purchased at one time is not a single one and is far less than the number of products in large-sized products. Therefore, the applicant has developed a packaging box in the form of an independent package for three products, which can well meet the usage requirements and is convenient to carry and take out for use. Referring to Figures 1 to 5 As shown, the packaging box 1 is composed of a wrapping member 11 and a partitioning member 12. The partitioning plate 12 is arranged on the bottom plate, and three positioning holes 1211 are arranged thereon in a triangular arrangement. The current grouping device cannot achieve the grouping method of arranging three products in a triangle. Figure 4 In the state shown, the partitioning member has been adhered to the wrapping member, and the three products are respectively positioned in the positioning holes 1211 and are distributed in a triangle. Finally, the wrapping member needs to be sealed.

Summary of the Invention

[0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a sealing device that can arrange three products in a triangular manner, group them and place them in a packaging box to be sealed, and finally seal the wrapping member to form a three-dimensional package.

[0004] To solve the above technical problem, the present invention adopts the following technical solution: A sealing device for a packaging box with products grouped in a triangular arrangement, comprising a loading and conveying assembly, a sealing and folding edge assembly, a grouping assembly, a grouping handling assembly, and a sealing handling assembly.

[0005] The loading and conveying assembly includes two conveying chains arranged side by side and carriers installed on the two conveying chains. The carriers include a bearing plate with a triangular bearing space, and three limiting edges are provided at the three corner positions corresponding to the triangular bearing space.

[0006] Above the inlet side of the sealing and folding edge assembly, there is a glue gun that sprays glue onto the outside of the supporting edge where the partitioning member is adhered to the inner side of the first side plate.

[0007] The sealing and folding edge assembly includes a sealing and folding edge plate that can be lifted and translated above the loading and conveying assembly, a limiting pressing plate that can be translated on the first side of the loading and conveying assembly, and a pressing plate that can be lifted and translated above the loading and conveying assembly. The first side plate of the wrapping member is bent downward by the sealing and folding edge plate, and the first side plate of the wrapping member and the corresponding supporting edge of the partitioning member are clamped together by the cooperation of the limiting pressing plate and the pressing plate.

[0008] A glue gun for spraying glue to the outer sides of the other two support edges of the separator is provided on the outlet side of the packet hemming assembly;

[0009] The grouping assembly includes a conveyor belt, a first screw rod and a second screw rod arranged side by side on both sides of the conveying plane of the conveyor belt, and an intermediate stop rod arranged at the middle position above the conveying plane of the conveyor belt. The pitch of the first screw rod is greater than that of the second screw rod. The first screw rod is driven by a first motor, and the second screw rod is driven by a second motor;

[0010] The grouping and handling assembly includes a fixed frame, three grouping suction cups arranged in a triangular pattern on the fixed frame, and a grouping suction cup translation and lifting mechanism for driving the fixed frame to translate and lift;

[0011] The packet handling assembly includes a claw head mechanism and a claw head translation and lifting mechanism for driving the claw head mechanism to translate and lift. The claw head mechanism includes a claw head base, a claw head suction cup, a claw hand cylinder, two movable claw hands, and a fixed claw hand installed on the claw head base. The fixed claw hand cooperates with the first side plate on the package. The telescopic movement of the claw hand cylinder drives the swing of the movable claw hands. The two movable claw hands respectively cooperate with the two second side plates on the package, so that the two second side plates and the corresponding connecting edges are adhesively fixed with glue.

[0012] Preferably, a turning plate is rotatably connected to the first side of the loading and conveying assembly on the inlet side of the packet hemming assembly. The turning plate is driven by a turning cylinder to turn. Before placing the packaging box to be packeted into the carrier, the turning plate turns outwards and avoids the space above the carrier. When the packaging box to be packeted is placed in the carrier, the turning plate turns inwards to be in a horizontal state and limits the packaging box to be packeted on the carrier.

[0013] Preferably, a support rod extending along the conveying direction and supporting the extended part of the package is provided on the second side outside the inlet side of the packet hemming assembly of the loading and conveying assembly; and / or, the packet hemming assembly further includes a guiding rod provided on the second side of the loading and conveying assembly. The guiding rod guides the extended part of the package to turn inwards and keeps the turned state.

[0014] Preferably, the packet hemming assembly further includes a first limiting rod provided on the first side of the loading and conveying assembly for limiting above the separator; and / or, the loading and conveying assembly is provided with a second limiting rod on the second side of the outlet side of the packet hemming assembly for keeping the hemming state of the extended part of the package.

[0015] Preferably, the packet hemming assembly further includes two first gantry brackets. The packet hemming plate is mounted on the lifting beam, and the lifting beam is connected to a first lifting cylinder. A guide plate is slidably connected to the cross beam of the first gantry bracket, and a first horizontal cylinder is fixed to the cross beam of the first gantry bracket. The piston rod of the first horizontal cylinder is connected to the guide plate, and the first lifting cylinder is connected to the guide plate.

[0016] Preferably, the extrusion plate is mounted on the horizontal beam, and the horizontal beam is connected to a second horizontal cylinder. The second horizontal cylinder is connected to a second lifting cylinder, and the second lifting cylinder is mounted on the cross beam of the first gantry bracket.

[0017] Preferably, the packet hemming assembly further includes a second gantry bracket disposed between the two first gantry brackets. A limit pressing plate translation cylinder is mounted on the column of the second gantry bracket. The piston rod of the limit pressing plate translation cylinder is connected to the limit pressing plate. The limit pressing plate is further connected to a guide rod, and a guide sleeve cooperating with the guide rod is mounted on the column of the first gantry bracket.

[0018] Preferably, a push plate for pushing down the extended part of the package is provided in the area between the two movable claw hands of the claw head base.

[0019] Preferably, a limit plate for limiting the movable claw hands is provided on the edge of the claw head base corresponding to the inner side of the movable claw hands.

[0020] Preferably, two of the three grouped suction cups are fixedly mounted on the fixed frame, and the other suction cup is driven by a linear cylinder to slide horizontally on the fixed frame.

[0021] With the above technical solution of the present invention, in the packet hemming assembly, the packet hemming plate can be lifted and translated. It first descends, and the packet hemming plate bends the connecting part. Then it translates, and the packet hemming plate presses the connecting part, forcing the connecting part to bend at a right angle with its main body. After that, it returns to the initial state. Immediately afterwards, the limit pressing plate translates from one side of the conveying path until it pushes the connecting part of the package towards the position where the supporting edge of the separator is located. The extrusion plate can be lifted and translated. It first descends, and the extrusion plate extends into the positioning hole of the separator. Then it translates, and the extrusion plate moves towards the position where the supporting edge of the separator is located. Finally, the connecting part of the package and the supporting edge of the separator are clamped together until they are bonded together.

[0022] The grouping device will arrange the products into groups, with three products in each group arranged in a triangular state, and the three products in each group of products will be put into the positioning holes of the separator together through the grouped handling assembly.

[0023] After spraying glue on the outer sides of the two connecting edges of the package, the sealing and handling component intervenes in the operation. First, the claw head mechanism moves horizontally, and the push plate directly pushes down the extended part of the package, covering the package on the product. Then, the claw head mechanism descends until the claw head base presses the package on the product. Then, the movable claw is lowered, and the package is further bent until the two side plates of the package are correspondingly connected to the two connecting edges sprayed with glue on the package. Finally, under the joint clamping of the movable claw hand, the fixed claw hand and the claw head suction cup, a connection is established with the entire packaging box, and the finally sealed packaging box is transported to the conveyor belt.

[0024] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Description of the Drawings

[0025] The following further describes the invention in conjunction with the drawings:

[0026] Figure 1 It is a schematic diagram of the unfolded structure of the packaging box package in the present invention;

[0027] Figure 2 It is a schematic diagram of the unfolded structure of the partition in the packaging box of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure after the partition and the package are connected together by the package forming device;

[0029] Figure 4 It is a schematic diagram of the structure of the packaging box to be sealed after putting three grouped products;

[0030] Figure 5 It is a schematic diagram of the structure of the product wrapped after the packaging box is sealed;

[0031] Figure 6 It is a schematic diagram of the structure of the partition forming device in the present invention;

[0032] Figure 7 It is a top view of the main part of the partition forming device in the present invention;

[0033] Figure 8 It is a front view of the main part of the partition forming device in the present invention;

[0034] Figure 9 It is a three-dimensional view of the main part of the partition forming device in the present invention;

[0035] Figure 10 It is a schematic diagram when the partition suction cup in the partition suction and transfer component moves to the lower part of the partition storage component;

[0036] Figure 11 It is a schematic diagram of the cooperation between the partition bending component and the partition suction cup;

[0037] Figure 12 Schematic diagram of the structure of the separator bending assembly;

[0038] Figure 13 Schematic diagram of the structure of the package forming device in the present invention;

[0039] Figure 14 Schematic diagram of the cooperation between the package suction cup and the package storage assembly;

[0040] Figure 15 Schematic diagram of the cooperation between the package suction cup and the package bending assembly;

[0041] Figure 16 Schematic diagram of the cooperation between the package suction cup, the separator bending assembly and the package bending assembly;

[0042] Figure 17 Schematic diagram of the structure of the separator after being formed by the separator forming device;

[0043] Figure 18 Schematic diagram of the package suction cup driving the separator and the package that have been combined together and placing them on the carrier of the loading and conveying assembly;

[0044] Figure 19 Schematic diagram of the structure of the grouping device arranged in a triangle;

[0045] Figure 20 Schematic diagram of the relative positions of the grouping device arranged in a triangle, the grouping handling assembly and the sealing device;

[0046] Figure 21 Schematic diagram of the structure of the sealing and hemming assembly Figure 1 ;

[0047] Figure 22 Schematic diagram of the structure of the sealing and hemming assembly Figure 2 ;

[0048] Figure 23 Schematic diagram of the structure of the grouping handling assembly;

[0049] Figure 24 Schematic diagram of simultaneously putting three grouped products into the packaging box to be sealed after output from the sealing and hemming assembly and spraying glue on the outer sides of the other two connecting edges of the package;

[0050] Figure 25 Schematic diagram of the structure of the sealing handling assembly in the present invention;

[0051] Reference numerals: product 100, packaging box 1, package 11, bottom plate 111, connecting edge 1111, top plate 112, side plate 113, rectangular portion 1131, isosceles trapezoidal portion 1132, partition member 12, partition plate 121, positioning hole 1211, support edge 122;

[0052] Partition member forming device 2, partition member storage assembly 21, guide rod 211, retaining piece 212, partition member suction and transfer assembly 22, partition member suction cup 221, straw opening 2211, limiting convex edge 2212, linear guide rail 222, load platform 223, linear motor 224, linear cylinder 225, partition member bending assembly 23, load plate 231, support plate 232, limiting bottom plate 233, straw 234, linear cylinder 235, partition member hemming plate 236, partition member second translation and lifting mechanism 24;

[0053] Package forming device 3, package storage assembly 31, bottom plate 311, load rack 312, lifting drive 313, baffle 314, package suction and transfer assembly 32, package suction cup 321, package translation and lifting mechanism 322, package bending assembly 33, load template 331, package hemming plate 332, hemming cylinder 333, first glue gun 334;

[0054] Grouping device 4, conveyor belt 41, intermediate stop bar 42, first screw 43, second screw 44;

[0055] Grouping handling assembly 5, fixed frame 51, grouping suction cup 52, translation linear cylinder 53, grouping suction cup translation and lifting mechanism 54;

[0056] Sealing device 6, loading and conveying assembly 61, conveying chain 611, carrier 612, limiting edge 6121, flipping plate 613, support rod 614, second glue gun 62, sealing hemming plate 63, hemming plate lifting and translation mechanism 631, limiting push plate 64, limiting push plate translation cylinder 641, pressing plate 65, pressing plate lifting and translation mechanism 651, guide rod 66, first limiting rod 661, second limiting rod 662, sealing handling assembly 67, claw head base 671, claw head suction cup 672, fixed claw 673, movable claw 674, vertical section 6741, limiting plate 675, push plate 676, claw cylinder 677.

Detailed implementation manners

[0057] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0058] Those skilled in the art can understand that, without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0059] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", "lateral", "longitudinal", etc. are only based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention.

[0060] In the present invention, unless otherwise clearly defined and limited, the terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0061] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0062] Referring to Figures 1 to 5 As shown, a packing box 1 includes a wrapping member 11 and a partitioning member 12. The wrapping member 11 includes a bottom plate 111 and a top plate 112 having an equilateral triangle structure, and side plates 113 connecting the three side edges of the bottom plate and the top plate. The partitioning member 12 includes a partitioning plate 121 having an equilateral triangle shape and supporting edges 122 extending outward from the three side edges of the partitioning plate and bent vertically downward. Three positioning holes 1211 arranged in a triangle are provided on the partitioning plate 121 for partitioning and positioning the product 100. The partitioning member 12 is disposed on the bottom plate 111 and the three supporting edges 122 correspondingly support on the three side edges of the bottom plate. Moreover, the corners of the above-mentioned bottom plate 111, top plate 112 and partitioning member 12 are all arc-shaped.

[0063] In this embodiment, the area of the top plate 112 is smaller than that of the bottom plate 111. Correspondingly, the side plates include a rectangular portion 1131 and an isosceles trapezoidal portion 1132. Among them, the bottom edge of the rectangular portion is connected to the side edge of the bottom plate, the top edge is connected to the lower base of the isosceles trapezoidal portion, the upper base of the isosceles trapezoidal portion is connected to the side edge of the top plate, and the upper base of the isosceles trapezoidal portion is smaller than the length of the side edge of the top plate, and the bottom edge of the rectangular portion is smaller than the length of the side edge of the bottom plate. In this way, after packaging the articles, the structure of the packaged box after sealing is as Figure 5 shown, there is a gap between adjacent side plates, and the isosceles trapezoidal portion forms an inclined surface.

[0064] In order to reduce costs and facilitate processing, the wrapper 11 and the separator 12 are respectively formed by folding a whole piece of cardboard. Correspondingly, one of the side plates is integrally connected to the bottom plate and the top plate (for the convenience of description, this side plate is hereinafter referred to as the first side plate, and the other two side plates are called the second side plates), and the second side plate is integrally connected to the top plate and bonded to the bottom plate. On the outer sides of the two side edges of the bottom plate corresponding to the bonding with the second side plate, there are also connecting edges 1111 extending outward and vertically bent upward, and the two connecting edges are bonded to the inner sides of the corresponding two second side plates; at the same time, the two connecting edges also correspond to be bonded to the outer sides of two of the supporting edges, and the other supporting edge is bonded to the inner side of the first side plate.

[0065] The above-mentioned wrapper 11 and separator 12 are respectively formed and respectively form shapes as Figure 1 and Figure 2 shown. Then they can be assembled by automated equipment.

[0066] Among them, the forming of the separator 12 is completed by a separator forming device 2 as Figures 6 to 12 shown, mainly the bending and forming of the three supporting edges 122 of the separator 12. After the separator 12 is formed, it is connected to the wrapper 11 through a wrapper forming device 3 as Figures 13 to 16 shown, mainly bonding the three supporting edges 122 of the separator 12 to the corresponding two connecting edges 1111. Then, through a sealing and folding edge assembly as Figure 21 and Figure 22 shown, the extended parts of the wrapper 11 except the bottom plate are bent and the first side plate is bonded to the corresponding connecting edge, forming a state as Figure 3 shown.

[0067] The product 100 will be grouped by a grouping device 4 as Figure 19 shown, arranged in a triangle, and then grouped and transported into the to-be-sealed packaging box in the state as Figure 23 shown by a grouped handling assembly 5, forming a state as Figure 3 shown. Finally, after the other two connecting edges are coated with glue, through a device as Figure 4 shown, the state as Figure 25The package handling assembly 67 shown in the figure completes the packaging and handling. Figure 5 Status shown.

[0068] like Figures 6 to 12 As shown, the separator forming device 2 includes a separator storage component 21, a separator suction and transfer component 22, a translation and lifting mechanism 24, and a separator bending component 23.

[0069] The partition storage assembly 21 is provided with a vertical partition storage space, and includes a bottom plate, and a guide rod 211 is vertically fixed on the bottom plate. The guide rod can be arranged according to the contour of the partition to form a vertical storage space, and a partition outlet is provided at the bottom of the partition storage space. The edge of the partition outlet is provided with a baffle 212 protruding inwardly, and a plurality of baffles 212 are provided along the edge of the partition outlet. The number of baffles can be adjusted according to the size of the partition, and the baffles are small, so that when the partition suction cup absorbs the partition, it can overcome the resistance of the baffle and detach from the partition outlet.

[0070] The separator suction and transfer assembly 22 includes a separator suction cup 221 and a first separator translation and lifting mechanism for driving the separator suction cup to achieve translation and lifting. The separator suction cup is moved to the separator storage assembly 21 through the first separator translation and lifting mechanism to absorb the separator 12, and the separator 12 is transferred to the bottom of the separator bending assembly 23.

[0071] Corresponding to the equilateral triangle shape of the separator, the separator suction cup 221 includes a suction cup seat with an equilateral triangle structure and three suction pipe openings 2211 arranged in a triangle on the suction cup seat. In addition, the corners of the suction cup seat are provided with arc portions, and the arc portions are provided with arc-shaped limiting convex edges 2212 protruding from the upper plane of the suction cup seat, and the arc-shaped limiting convex edges correspond to the arc shapes of the corners of the separator 12.

[0072] The first translation and lifting mechanism of the partition includes a linear motor 224, a linear guide 222, a loading platform 223 installed on the linear guide, and a linear cylinder 225 installed on the loading platform. The output end of the linear motor is connected to the loading platform, and the linear motor drives the loading platform to perform reciprocating linear motion along the linear guide. The piston rod of the linear cylinder is connected to the partition suction cup, and the linear cylinder drives the partition suction cup to perform reciprocating linear motion in the vertical direction.

[0073] like Figure 12As shown in the figure, the separator bending assembly 23 includes a loading plate 231, a limit bottom plate 233, a support plate 232, and a suction pipe 234 that are arranged parallel to each other vertically. The limit bottom plate is an equilateral triangle with rounded corners. The limit bottom plate and the loading plate are fixed together by a connecting rod. A linear cylinder 235 is installed on the loading plate. The piston rod of the linear cylinder is connected to the support plate. The linear cylinder drives the support plate to move up and down in a reciprocating linear motion. The limit bottom plate is provided with a through hole. The suction pipe is fixed on the loading plate, and the lower end of the suction pipe passes through the through hole. The three sides of the support plate are fixedly connected to the separator folding edge plates 236. The three separator folding edge plates cooperate with the three sides of the limit bottom plate to perform a bending operation on the three support edges of the separator. After the linear cylinder drives the support plate to move linearly, it can cause the separator folding edge plates to reciprocate along the edge of the limit bottom plate, thereby forming a side where the separator folding edge plate protrudes from one side of the limit bottom plate and a side where the separator folding edge plate is away from the limit bottom plate.

[0074] Further, limiting grooves that penetrate up and down are provided in the middle positions of the three side surfaces of the suction cup seat and the limit bottom plate. The limiting grooves cooperate with the separator folding edge plates. The separator folding edge plates 236 are provided with two folding heads side by side, and the head ends of the folding heads are turned outwards. When the separator bending assembly 23 is working, it is located above the suction cup seat. The separator 12 is adsorbed on the bottom surface of the limit bottom plate 233 through the suction pipe. The separator folding edge plates 236 squeeze the support edge 122 of the separator 12 downwards, squeeze the support edge into the limiting grooves on the side surfaces of the suction cup seat and the limit bottom plate, and finally realize the bending of the support edge.

[0075] During operation, the separator in the form of cardboard is stacked in the storage space of the separator storage assembly; the separator suction cup on the separator suction and transfer assembly moves to the separator outlet of the separator storage assembly. After the suction cup is lifted by the linear cylinder, it extends into the interior of the separator storage space from the separator outlet until the suction cup contacts and sucks the separator; when the suction cup descends, it sucks away a separator; then the suction cup moves horizontally to below the separator bending assembly, and the separator bending assembly descends and the end of the suction pipe sucks the separator. The separator folding edge plates descend to perform a bending operation on the separator, and finally the separator folding edge plates rise.

[0076] Further, the separator bending assembly 23 is driven by a separator second translation and lifting mechanism 24 to achieve translation and lifting. The separator second translation and lifting mechanism includes a lower moving plate connected to the loading plate, an upper moving plate arranged above the lower moving plate, a linear cylinder installed on the upper moving plate, and a synchronous belt connected to the upper moving plate. The translation of the separator bending assembly is realized through the synchronous belt, and the lifting of the separator bending assembly is realized through the linear cylinder.

[0077] The package 11 has been formed as Figure 1For the shown shape, the separator 12 formed by the separator forming device 2 and the wrapper 11 are connected together by the wrapper forming device 3. As Figures 13 to 18 shown, the wrapper forming device 3 includes a wrapper storage component 31, a wrapper suction and transfer component 32, and a wrapper bending component 33.

[0078] As Figure 14 shown, the wrapper storage component 31 includes a bottom plate 311, a carrier 312 disposed above the bottom plate, a lifting driver 313 installed below the bottom plate for driving the carrier to lift and lower, and a baffle 314 vertically fixed to the bottom plate and passing upward through the carrier. The carrier and the baffle cooperate to form a wrapper storage space; the lifting driver includes a guide rod, a lead screw, and a servo motor. The guide rod is vertically installed on the bottom plate. The carrier is provided with a guide sleeve cooperating with the guide rod. The lead screw is connected with a nut, and the nut is connected with the carrier. The servo motor drives the lead screw to rotate.

[0079] As Figure 15 shown, the wrapper bending component 33 includes a carrier template 331 for placing the wrapper and the separator. The front part of the carrier template is provided with hypotenuses corresponding to two side edges on the bottom plate of the wrapper. The outside of the hypotenuse is provided with a connecting edge 1111 for squeezing the wrapper when rising, so as to make the connecting edge upward and vertically bend the wrapper folding plate 332. The wrapper folding plate 332 is driven to lift and lower by a folding cylinder 333, and a first glue gun 334 for spraying glue on two of the support edges 122 of the separator 12 is also provided.

[0080] As Figure 13 and Figure 15 shown, the wrapper suction and transfer component 32 includes a wrapper suction cup 321 and a wrapper translation and lifting mechanism 322 for driving the wrapper suction cup to achieve translation and lifting. After the wrapper suction cup sucks the wrapper stored in the wrapper storage space, the wrapper is transferred to the carrier template 331 through the wrapper translation and lifting mechanism 322. The wrapper translation and lifting mechanism includes a lower moving plate connected to the wrapper suction cup, an upper moving plate disposed above the lower moving plate, a linear cylinder installed on the upper moving plate, and a synchronous belt connected to the upper moving plate. The translation of the wrapper suction cup is realized through the synchronous belt, and the lifting of the wrapper suction cup is realized through the linear cylinder.

[0081] To facilitate the sucking of the package, the package suction cup 321 includes a suction cup bottom plate. The front half of the suction cup bottom plate is an isosceles trapezoid, and the rear half is a rectangle. The rear half is connected to the lower moving plate of the package translation and lifting mechanism through a connecting rod. After the package suction cup 321 sucks the package, the two waists of the front half isosceles trapezoid are located inside the two side edges of the package bottom plate, without affecting the upward bending of the corresponding connecting edges. Correspondingly, the front half of the load-carrying template is an isosceles trapezoid, and the rear half is a rectangle. A positioning convex edge for positioning the package is provided on the upper side of the head end of the front half. After the package suction cup 321 sucks the package and is positioned by the positioning convex edge, the two side edges on the package bottom plate basically correspond to the two inclined edges of the front part of the load-carrying template.

[0082] In the initial state, the package folding edge plate is at the low working position. During use, the package suction cup 321 first sucks the package 11 and places it on the load-carrying template 331, and then the separator bending assembly 23 claws and places the separator 12 as shown in Figure 17 on the upper part of the package 11. When the separator is placed on the package, the package suction cup 321 does not detach from the package, the separator bending assembly 23 does not detach from the separator, the bottom of the separator is supported by the package suction cup, both the package and the separator are fixed, and then, the first glue gun 334 sprays glue on the two supporting edges 122 of the separator. The package folding edge plate of the package bending assembly 33 rises, causing the connecting edge 1111 of the package to adhere to the supporting edge 122 of the separator. Then, the package folding edge plate of the package bending assembly 33 descends, and then the package folding edge plate of the separator bending assembly 23 descends. After squeezing the two connecting parts, it rises.

[0083] Then, as shown in Figure 18 the package suction cup 321 of the package sucking and transferring assembly drives the separator and the package that have been combined together and places them on the carrier 612 transported by the loading and conveying assembly 61.

[0084] The products being normally conveyed on the conveyor belt are arranged in a line. Therefore, for the products packaged in a triangular arrangement, grouping is required.

[0085] As shown in Figure 19As shown in the figure, a grouping device 4 arranged in a triangle includes a conveyor belt 41, a first screw 43 and a second screw 44 arranged side by side on both sides of the conveying plane of the conveyor belt, and an intermediate stop bar 42 arranged at the middle position above the conveying plane of the conveyor belt. The pitch of the first screw is greater than that of the second screw. The first screw is driven by a first motor, and the second screw is driven by a second motor. The conveyor belt obtains an unfolded state and driving force in a common manner. After two rows of products are conveyed by the conveyor belt, the products will be further separated and arranged under the guidance of the screws. Since the pitch of the first screw is greater than that of the second screw, the first row of products corresponding to the first screw is arranged slightly wider, and the second row of products corresponding to the second screw is separated more. Finally, the products will be arranged in groups of three in a triangular arrangement.

[0086] Two gantry brackets are arranged side by side along the extending direction of the conveyor belt. Both ends of the intermediate stop bar are fixed to the cross beam of the gantry bracket through connecting pieces.

[0087] Next, the products arranged in a triangle in each group need to be grouped and placed into the intermediate state packaging boxes formed by the packaging forming device, and then they can be finally sealed by the sealing device 6.

[0088] As Figure 22 shown, the sealing device 6 includes a loading and conveying assembly 61. The loading and conveying assembly 61 includes two conveying chains 611 arranged side by side and carriers 612 installed on the two conveying chains. As Figure 18 shown, the carrier 612 includes a bearing plate and a triangular bearing space arranged on the bearing plate. Limited stop edges 6121 are arranged at the three corner positions of the triangle in the triangular bearing space. The limited stop edges 6121 are arc-shaped and correspond to the rounded corners at the three corners of the bottom plate of the package. A limit pin for limiting the angle position where the first side plate and the bottom plate of the package are connected is also arranged on the carrier 612.

[0089] The three products in each group of products are put into the positioning holes of the separator together through the grouping handling assembly 5. As Figure 20 shown, the grouping handling assembly 5 includes a fixed frame 51, three grouping suction cups 52 arranged in a triangle at the bottom of the fixed frame, and a grouping suction cup translation and lifting mechanism 54 for driving the fixed frame to translate and lift. Two of the three suction cups are fixedly installed on the fixed frame 51, and the other suction cup is driven by a translation linear cylinder 53 to slide horizontally on the fixed frame. The translation and lifting mechanism includes a fixed bracket, a translation and lifting bracket arranged below the fixed bracket, a lifting cylinder arranged on the fixed bracket for driving the translation and lifting bracket to lift, a synchronous belt for driving the fixed bracket and driving the translation and lifting bracket to translate horizontally, and a lead screw nut assembly arranged on the translation and lifting bracket. The fixed frame is driven by the lead screw nut assembly to translate longitudinally.

[0090] In the initial state, the linear cylinder shrinks, causing a grouped suction cup 52 to be at a greater distance from the other two grouped suction cups, and the three are arranged in a triangle with equal lengths on both sides. The fixed frame 51 is installed on the grouped suction cup translation and lifting mechanism 54. During operation, the grouped suction cups are first placed at the grouping device. After each group of grouped suction cups picks up three products, they rise. At the same time, the translation linear cylinder 53 extends, causing the three products that were not equidistant in the original arrangement to be arranged at the same interval. Then, the three products are placed into the positioning holes 1211 of the partition of the packaging box in the unfolded state on the carrier.

[0091] As Figures 20 to 25 shown, the sealing device 6 includes the above-mentioned loading and conveying assembly 61, and also includes a sealing and folding edge assembly and a sealing and handling assembly 67.

[0092] The movement mode of the loading and conveying assembly 61 is always a stepping movement. For example, it advances four carriers at a time. Therefore, after stepping one station, the sealing and folding edge assembly can simultaneously perform the sealing and folding edge operation on the packaging boxes to be sealed on the four carriers.

[0093] As Figure 18 shown, the preliminarily connected package and partition are placed into the carrier 612 through the above-mentioned package suction and transfer assembly 32. Except for the bottom plate part that has been connected to the partition, the rest of the package extends outwards from the triangular bearing space, hereinafter referred to as the outer extending part of the package.

[0094] Before the package is sealed and folded, it is necessary to spray glue on the outside of one of the support edges of the partition (specifically, the support edge corresponding to the connection with the first side plate), so that the side plate can be adhered to the outside of the support edge during the sealing and folding. As Figure 21 shown, therefore, a second glue gun 62 for spraying glue on the outside of the support edge where the partition is adhered to the inside of the first side plate is provided above the inlet side of the sealing and folding edge assembly. The glue gun is installed on the frame of the loading and conveying assembly.

[0095] As Figure 21 and Figure 22 shown, the sealing and folding edge assembly includes a sealing and folding edge plate 63 that can be lifted and translated above the loading and conveying assembly, a limiting push plate 64 that can be translated on the first side of the loading and conveying assembly, and a pressing plate 65 that can be lifted and translated above the loading and conveying assembly. The first side plate on the package and the corresponding support edge on the partition are clamped together by pressing down and bending the first side plate by the sealing and folding edge plate 63 and the cooperation of the limiting push plate 64 and the pressing plate 65.

[0096] Among them, the sealing and folding edge plate 63 is driven by the folding edge plate lifting and translation mechanism 631, the limiting push plate 64 is driven by the limiting push plate translation cylinder 641, and the pressing plate 65 is driven by the pressing plate lifting and translation mechanism 651.

[0097] Specifically, the packet hemming assembly further includes two first gantry brackets arranged side by side. The packet hemming plate is installed on the lifting beam, and the lifting beam is connected to the first lifting cylinder. A guide plate is slidably connected to the cross beam of the first gantry bracket, and a first horizontal cylinder is fixed on the cross beam of the first gantry bracket. The piston rod of the first horizontal cylinder is connected to the guide plate, and the first lifting cylinder is connected to the guide plate. The above structure constitutes the hemming plate lifting and translation mechanism 631. The pressing plate is installed on the horizontal beam, the horizontal beam is connected to the second horizontal cylinder, the second horizontal cylinder is connected to the second lifting cylinder, and the second lifting cylinder is installed on the cross beam of the first gantry bracket. The above structure constitutes the pressing plate lifting and translation mechanism 651. A second gantry bracket is provided between the two first gantry brackets. A limit push plate translation cylinder 641 is installed on the column of the second gantry bracket. The piston rod of the limit push plate translation cylinder 641 is connected to the limit push plate, and the limit push plate is also connected to the guide rod. A guide sleeve cooperating with the guide rod is installed on the column of the first gantry bracket.

[0098] Further, as Figure 22 shown, the packet hemming assembly further includes a guide rod 66 provided on the second side of the loading and conveying assembly. The guide rod is provided with a guiding head with an arc-shaped bend on one side of the inlet of the packet hemming assembly. The guiding head of the guide rod guides the extended part of the package to fold inward, and then the guide rod keeps the extended part of the package in a folded state during the subsequent packet hemming process.

[0099] Therefore, under the guiding action of the guide rod, the extended part of the package becomes vertical. Immediately afterwards, the first side plate is in the working area of the packet hemming plate, the limit push plate, and the pressing plate. At this time, glue has been sprayed on the outside of the remaining one support edge of the separator by the glue gun.

[0100] The packet hemming plate can lift and translate. It first descends, and the packet hemming plate bends the first side plate. Then it translates, and the packet hemming plate presses the first side plate, driving the first side plate to bend at a right angle with the bottom plate. After that, it returns to the initial state. Immediately afterwards, the limit push plate translates from one side of the conveying path until it pushes the first side plate of the package towards the position where the support edge of the separator is located; the pressing plate can lift and translate. It first descends, the pressing plate extends into the positioning hole of the separator, then it translates, and the pressing plate moves towards the position where the support edge of the separator is located. Finally, the first side plate of the package and the support edge of the separator are clamped together until they are bonded together.

[0101] Further, a turning plate 613 is rotatably connected to the first side of the loading and conveying assembly on the entrance side of the packet sealing and hemming assembly. The turning plate is driven by a turning cylinder to turn. Before placing the packaging box to be sealed into the carrier, the turning plate turns outwards and avoids the space above the carrier. When the packaging box to be sealed is placed into the carrier, the turning plate turns inwards to a horizontal state to limit the packaging box to be sealed on the carrier.

[0102] Since the length of the extended part of the package is relatively long, it is not stable enough to be conveyed on the loading and conveying assembly. In addition to being limited by the turning plate 613, a support rod 614 extending along the conveying direction and forming a support for the extended part of the package is provided on the second side outside the entrance side of the loading and conveying assembly of the packet sealing and hemming assembly, so that the extended part of the package will not fold downwards during the conveying process.

[0103] Further, the packet sealing and hemming assembly further includes a first limiting rod 661 provided on the first side of the loading and conveying assembly corresponding to the area where the packet sealing and hemming assembly is located for limiting above the separator. During the working process of the packet sealing and hemming assembly, the first limiting rod 661 limits the separator 12 and the bottom plate of the package 11 below it, so that when the extended part of the package bends upwards, the separator 12 and the bottom plate of the package 11 below it can be kept stationary.

[0104] After the packet sealing and hemming assembly bends and bonds the extended part of the package, it takes a certain period of time for the glue to fully play its role. Therefore, a second limiting rod 662 for maintaining the hemmed state of the extended part of the package is provided on the second side of the exit side of the loading and conveying assembly of the packet sealing and hemming assembly.

[0105] After the packet sealing and hemming assembly finishes working, the loading and conveying assembly continues to step forward and convey to the next working station. Therefore, this working station is located on the exit side of the loading and conveying assembly of the packet sealing and hemming assembly. As Figure 24 shown, a second glue gun 62 for spraying glue to the outer sides of the other two connecting edges of the package is provided at this working station. And at this working station, three products of each group of products are put into the positioning holes of the separator together through the grouped handling assembly 5. As Figure 20 shown, the grouping device 4 is arranged on the side of the loading and conveying assembly 61, and the grouped handling assembly 5 is located above the two. Three products of each group of products after being grouped by the grouping device 4 are put into the positioning holes of the separator together through the grouped handling assembly 5.

[0106] Finally, the packet sealing and handling are completed through the packet sealing and handling assembly, that is, the extended part of the package is wrapped downwards on the product, and the two second side plates of the package are bonded to the corresponding two connecting edges, and then it is handled after bonding.

[0107] As Figure 25As shown, the packet handling component 67 includes a claw head mechanism and a claw head translation and lifting mechanism for driving the claw head mechanism to translate and lift. The claw head mechanism includes a claw head base 671, a claw head suction cup 672 mounted on the claw head base, two movable claw hands 674, and a fixed claw hand 673. Above the claw head base is provided a claw hand cylinder 677.

[0108] In addition, the claw head base is provided with a push plate 676 above the extended part acting on the package between the two movable claw hands. Among them, the bottom cross-section of the head end of the push plate 676 is a trapezoidal surface acting on the extended part of the package. The fixed claw hand cooperates with the first side plate on the package. The movable claw hands swing driven by the telescopic movement of the claw hand cylinder. The two movable claw hands respectively cooperate with the other two second side plates on the package, so that the edges of the two second side plates and the corresponding connecting edges are adhesively fixed with glue.

[0109] In order to limit the movement range of the movable claw hands and avoid damaging the packaging box and the internal products, a limiting plate 675 for limiting the movable claw hands is provided corresponding to the inner side of the movable claw hands at the edge of the claw head base. It can be understood that a limiting plate 675 can also be provided on the inner side of the fixed claw hand. The limiting plate basically covers the isosceles trapezoidal part of the upper side plate of the package. The isosceles trapezoidal part is an inclined surface after the sealing is completed. Therefore, the limiting plate is an inclined plate that slopes downward and the inner side wall forms a fit with the isosceles trapezoidal part of the side plate of the package. The two movable claw hands 674 and a fixed claw hand 673 press the rectangular part of the side plate. The movable claw hand is provided with a vertical section 6741 that is in a vertical state after being limited by the limiting plate and forms a fit with the rectangular part of the side plate of the package, so that the rectangular part is three-dimensionally formed, and the bottom edge of the side plate is tightly attached to the corresponding connecting edge, and finally is adhesively fixed with glue. Therefore, the part of the fixed claw hand below the limiting plate is also in a vertical state.

[0110] After spraying glue on the outer sides of the other two connecting edges of the package, the packet handling component 67 intervenes in the operation. First, the claw head mechanism translates, and the push plate 676 directly pushes down the extended part of the package, and the extended part of the package covers the product. Then, the claw head mechanism descends until the claw head base 671 presses the extended part of the package on the product. Then the movable claws are lowered, and the extended part of the package is further bent until the two side plates of the package are correspondingly connected to the two connecting edges sprayed with glue on the package. Finally, the movable claw hands 674, the fixed claw hand 673, and the claw head suction cup 672 jointly clamp to establish a connection with the entire packaging box, and the finally sealed packaging box is transported to the conveyor belt.

[0111] It can be understood that all the functional components realizing translation and lifting above can be replaced by other common methods.

[0112] It can be understood that the above products can be yogurt cups, Tetra Pak bricks or other types of products.

[0113] As described above, it is only the specific implementation manner of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A sealing device for a triangular arrangement grouped product packaging box, characterized in that, It includes a loading and conveying component, a bag sealing and hemming component, a grouping component, a grouping handling component, and a bag sealing handling component. The loading and conveying component includes two conveying chains arranged side by side and carriers installed on the two conveying chains. The carrier includes a bearing plate with a triangular bearing space, and three limiting edges are provided at the three corner positions corresponding to the triangular bearing space. Above the entrance side of the bag sealing and hemming component, there is a glue gun for spraying glue on the outer side of the supporting edge where the separator is adhered to the inner side of the first side plate. The bag sealing and hemming component includes a bag sealing and hemming plate that can be lifted and translated above the loading and conveying component, a limiting pressing plate that can be translated on the first side of the loading and conveying component, and a pressing plate that can be lifted and translated above the loading and conveying component. The first side plate of the package is bent downward by the bag sealing and hemming plate, and the first side plate of the package and the corresponding supporting edge on the separator are clamped together through the cooperation of the limiting pressing plate and the pressing plate. On the exit side of the bag sealing and hemming component, there is a glue gun for spraying glue on the outer sides of the other two supporting edges of the separator. The grouping component includes a conveyor belt, a first screw rod and a second screw rod arranged side by side on both sides of the conveying plane of the conveyor belt, and an intermediate stop rod arranged at the middle position above the conveying plane of the conveyor belt. The pitch of the first screw rod is greater than that of the second screw rod. The first screw rod is driven by a first motor, and the second screw rod is driven by a second motor. The grouping handling component includes a fixed frame, three grouping suction cups arranged in a triangular pattern on the fixed frame, and a grouping suction cup translation and lifting mechanism for driving the fixed frame to translate and lift. The bag sealing handling component includes a claw head mechanism and a claw head translation and lifting mechanism for driving the claw head mechanism to translate and lift. The claw head mechanism includes a claw head base, a claw head suction cup, a claw hand cylinder, two movable claw hands, and a fixed claw hand installed on the claw head base. The fixed claw hand cooperates with the first side plate of the package. The movable claw hands swing by the telescopic movement of the claw hand cylinder, and the two movable claw hands respectively cooperate with the two second side plates of the package, so that the two second side plates are adhesively fixed to the corresponding connecting edges through glue.

2. The packet sealing device for a triangular arrangement and grouped product packaging box according to claim 1, characterized in that, On the first side of the entrance side of the loading and conveying component to the bag sealing and hemming component, there is a turning plate rotatably connected. The turning plate is driven by a turning cylinder to turn. Before putting the packaging box to be sealed into the carrier, the turning plate turns outward and avoids the space above the carrier. When the packaging box to be sealed is put into the carrier, the turning plate turns inward to be in a horizontal state and limits the packaging box to be sealed on the carrier.

3. The sealing device for a triangular arrangement grouped product packaging box according to claim 1, characterized in that, On the second side outside the entrance side of the loading and conveying component to the bag sealing and hemming component, there is a support rod extending along the conveying direction and forming a support for the extended part of the package; and / or, the bag sealing and hemming component further includes a guiding rod arranged on the second side of the loading and conveying component, and the extended part of the package is guided by the guiding rod to turn inward and maintain the turned state.

4. The packet sealing device for a triangular arrangement grouped product packaging box according to claim 1, characterized in that, The bag sealing and hemming component further includes a first limiting rod arranged on the first side of the loading and conveying component for limiting above the separator; and / or, on the second side of the exit side of the loading and conveying component to the bag sealing and hemming component, there is a second limiting rod for maintaining the hemmed state of the extended part of the package.

5. The packet sealing device for a triangular arrangement and grouped product packaging box according to claim 1, characterized in that, The packet hemming assembly further includes two first gantry brackets. The packet hemming plate is mounted on the lifting beam, and the lifting beam is connected to a first lifting cylinder. A guide plate is slidably connected to the cross beam of the first gantry bracket, and a first horizontal cylinder is fixed to the cross beam of the first gantry bracket. The piston rod of the first horizontal cylinder is connected to the guide plate, and the first lifting cylinder is connected to the guide plate.

6. The packet sealing device for a triangular arrangement grouped product packaging box according to claim 5, characterized in that, The extrusion plate is mounted on the horizontal beam, the horizontal beam is connected to a second horizontal cylinder, the second horizontal cylinder is connected to a second lifting cylinder, and the second lifting cylinder is mounted on the cross beam of the first gantry bracket.

7. The sealing device for a triangular arrangement grouped product packaging box according to claim 6, characterized in that, The packet hemming assembly further includes a second gantry bracket disposed between the two first gantry brackets. A limit pressing plate translation cylinder is mounted on the column of the second gantry bracket. The piston rod of the limit pressing plate translation cylinder is connected to the limit pressing plate. The limit pressing plate is further connected to a guide rod, and a guide sleeve cooperating with the guide rod is mounted on the column of the first gantry bracket.

8. A sealing device for a triangular arrangement grouped product packaging box according to claim 1, characterized in that, The claw head base is provided with a push plate for pushing down the protruding part of the package in the area between the two movable claw hands.

9. The packet sealing device for a triangular arrangement grouped product packaging box according to claim 1, characterized in that, The edge of the claw head base is provided with a limit plate for limiting the movable claw hands on the inner side of the movable claw hands.

10. The packet sealing device for a triangular arrangement grouped product packaging box according to claim 1, characterized in that, Two of the three grouped suction cups are fixedly mounted on the fixed frame, and the other suction cup is driven by a linear cylinder to slide horizontally on the fixed frame.

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