A grouping device with a triangular arrangement

Abstract

The present invention discloses a triangular arrangement grouping device, comprising a conveyor belt, a first screw and a second screw arranged side by side on both sides of the conveyor belt conveying plane, and an intermediate stopper arranged in the middle position above the conveyor belt conveying plane, wherein the pitch of the first screw is greater than the pitch of the second screw, the first screw is driven by a first motor, and the second screw is driven by a second motor. The present invention adopts the above technical solution. After the conveyor belt conveys two rows of products, the products will be further separated and arranged under the guidance of the screws. Because the pitch of the first screw is greater than the pitch of the second screw, the first row of products corresponding to the first screw are arranged slightly apart, and the second row of products corresponding to the second screw are arranged more apart. Finally, the products are arranged in groups, each group having three products and arranged in a triangular state.

Description

Technical field

[0001] The invention belongs to the technical field of packaging, and in particular relates to a grouping device. [Background Technology]

[0002] Currently, the most common grouping method for dairy products and other similar beverages is a rectangular array. With changes in people's travel habits and the increasing diversity of social occasions, the demand for dairy products is increasingly trending towards medium-sized portions. That is, the number of dairy products purchased at a time is not a single item, but is far less than the number of items in a large product. A three-piece packaging format can well meet user needs and is convenient for carrying and taking out for use. However, current grouping devices cannot achieve a triangular arrangement of three products. [Summary of the invention]

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a triangular arrangement grouping device, which can arrange three products in a triangular manner to facilitate subsequent packaging.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: a triangularly arranged grouping device, including a conveyor belt, a first screw and a second screw arranged side by side on both sides of the conveying plane of the conveyor belt, and an intermediate baffle arranged in the middle position above the conveying plane of the conveyor belt, wherein the pitch of the first screw is greater than the pitch of the second screw, the first screw is driven by a first motor, and the second screw is driven by a second motor.

[0005] Preferably, two gate-shaped brackets are arranged side by side along the extension direction of the conveyor belt, and the two ends of the intermediate blocking rod are fixed to the cross beams of the gate-shaped brackets through connecting pieces.

[0006] Preferably, it also includes a grouping transport component for transporting the grouped products, the grouping transport component including a fixed frame, three grouping suction cups arranged in a triangle on the fixed frame, and a grouping suction cup translation and lifting mechanism for driving the fixed frame to translate and lift.

[0007] 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.

[0008] Preferably, the grouped suction cup translation and lifting mechanism includes a fixed bracket, a translation lifting bracket arranged below the fixed bracket, a lifting cylinder arranged on the fixed bracket for driving the translation lifting bracket to lift and lower, a synchronous belt that drives the fixed bracket and drives the translation lifting bracket to translate horizontally, and a screw and nut assembly arranged on the translation lifting bracket, and the screw and nut assembly drives the fixed frame to translate longitudinally.

[0009] The present invention adopts the above-mentioned technical solution. After the conveyor belt transports two rows of products, the products will be further separated and arranged under the guidance of the screw. Since the pitch of the first screw is greater than the pitch of the second screw, the first row of products corresponding to the first screw are arranged slightly apart, and the second row of products corresponding to the second screw are arranged more apart. Finally, the products will be arranged into groups, with three in each group and arranged in a triangular shape.

[0010] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0011] The invention will be further described below with reference to the accompanying drawings:

[0012] Figure 1 Schematic diagram of the unfolded structure of the packaging box wrapper in the present invention;

[0013] Figure 2 Schematic diagram of the unfolded structure of the packaging box separator in the present invention;

[0014] Figure 3 is a schematic diagram of the structure after the separator and the wrapping piece are connected together through the wrapping piece forming device;

[0015] Figure 4 This is a schematic diagram of the packaging box structure after three grouped products are placed and ready to be packaged;

[0016] Figure 5 This is a schematic diagram of the structure of the product after the packaging box is sealed;

[0017] Figure 6 Schematic diagram of the structure of the separator forming device in the present invention;

[0018] Figure 7 A top view of the main part of the separator forming device of the present invention;

[0019] Figure 8 This is a front view of the main part of the separator forming device of the present invention;

[0020] Figure 9 A three-dimensional diagram of the main parts of the separator forming device of the present invention;

[0021] Figure 10 A schematic diagram of a separator suction cup in a separator suction transfer assembly moving to a bottom of a separator storage assembly;

[0022] Figure 11 A schematic diagram of the cooperation between the separator bending assembly and the separator suction cup;

[0023] Figure 12 It is a structural schematic diagram of the separator bending assembly;

[0024] Figure 13 Schematic diagram of the structure of the package forming device of the present invention;

[0025] Figure 14 A schematic diagram of the cooperation between the package suction cup and the package storage assembly;

[0026] Figure 15 A schematic diagram of the cooperation between the package suction cup and the package bending component;

[0027] Figure 16 A schematic diagram of the coordination of the wrapping piece suction cup, the separator bending assembly, and the wrapping piece bending assembly;

[0028] Figure 17 is a schematic diagram of the structure of the separator after being formed by the separator forming device;

[0029] Figure 18 A schematic diagram showing a package suction cup driving the combined separator and package to be placed on a carrier for loading and conveying a component;

[0030] Figure 19 A schematic diagram of the structure of a grouping device arranged in a triangle;

[0031] Figure 20 A schematic diagram of the relative positions of the grouping device, the group handling assembly, and the packaging device arranged in a triangle;

[0032] Figure 21 Schematic diagram of the structure of the package folding component Figure 1 ;

[0033] Figure 22 Schematic diagram of the structure of the package folding component Figure 2 ;

[0034] Figure 23 It is a structural diagram of the group handling components;

[0035] Figure 24 A schematic diagram of simultaneously placing three grouped products into a packaging box to be sealed after being output from the packaging and folding assembly, and spraying glue on the outer sides of the other two connecting edges of the package;

[0036] Figure 25 Schematic diagram of the structure of the package handling component of the present invention;

[0037] Reference numerals: product 100 , packaging box 1 , wrapping member 11 , bottom plate 111 , connecting edge 1111 , top plate 112 , side plate 113 , rectangular portion 1131 , isosceles trapezoidal portion 1132 , partition 12 , partition plate 121 , positioning hole 1211 , supporting edge 122 ;

[0038] Separator forming device 2, separator storage assembly 21, guide rod 211, baffle 212, separator suction transfer assembly 22, separator suction cup 221, suction pipe opening 2211, limiting convex edge 2212, linear guide 222, loading platform 223, linear motor 224, linear cylinder 225, separator bending assembly 23, loading plate 231, support plate 232, limiting bottom plate 233, suction pipe 234, linear cylinder 235, separator folding plate 236, and separator second translation and lifting mechanism 24;

[0039] Package forming device 3, package storage assembly 31, bottom plate 311, carrier 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, carrier template 331, package hemming plate 332, hemming cylinder 333, first glue gun 334;

[0040] Grouping device 4, conveyor belt 41, intermediate stop rod 42, first screw 43, second screw 44;

[0041] Group handling assembly 5, fixed frame 51, group suction cup 52, translation linear cylinder 53, group suction cup translation lifting mechanism 54;

[0042] Packaging device 6, loading and conveying assembly 61, conveying chain 611, carrier 612, limiting rib 6121, flip plate 613, support rod 614, second glue gun 62, packaging folding plate 63, folding plate lifting and translation mechanism 631, limiting push plate 64, limiting push plate translation cylinder 641, extrusion plate 65, extrusion plate lifting and translation mechanism 651, guide rod 66, first limiting rod 661, second limiting rod 662, packaging handling assembly 67, claw head base 671, claw head suction cup 672, fixed claw hand 673, movable claw hand 674, vertical section 6741, limiting plate 675, push plate 676, claw hand cylinder 677. [Specific implementation method]

[0043] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0044] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0045] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. For example, terms such as "upper," "lower," "front," "back," "lateral," and "longitudinal" that indicate orientation or positional relationships are based solely on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the disclosure. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation, and therefore should not be construed as limiting the disclosure.

[0046] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] Reference Figures 1 to 5 As shown, a packaging box 1 includes a wrapping member 11 and a separator 12. The wrapping member 11 includes an equilateral triangle bottom plate 111 and a top plate 112, and side plates 113 connecting the three sides of the bottom plate and the top plate. The separator 12 includes an equilateral triangle separator 121 and supporting edges 122 extending outward from the three sides of the separator and bending vertically downward. The separator 121 is provided with three positioning holes 1211 arranged in a triangular pattern for separating and positioning products 100. The separator 12 is provided on the bottom plate 111, and the three supporting edges 122 are correspondingly supported on the three sides of the bottom plate. In addition, the corners of the bottom plate 111, the top plate 112, and the separator 12 are all arc-shaped.

[0049] 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. 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 side edge length of the top plate, and the bottom edge of the rectangular portion is smaller than the side edge length of the bottom plate. In this way, the structure of the packaging box after packaging the items is as follows: Figure 5 As shown, there is a gap between the adjacent two side plates, and the isosceles trapezoidal portion forms an inclined surface.

[0050] To reduce costs and facilitate processing, the wrapping member 11 and the separator 12 are each folded from a single piece of cardboard. Accordingly, one side panel is integrally connected to the bottom panel and the top panel (for ease of description, this side panel is hereinafter referred to as the first side panel, and the other two side panels are referred to as the second side panels). The second side panel is integrally connected to the top panel and bonded to the bottom panel. Connecting edges 1111 extending outward and vertically bent upward are provided on the outer sides of the two sides of the bottom panel bonded to the second side panels. These two connecting edges are bonded to the inner sides of the corresponding second side panels. Simultaneously, these two connecting edges are 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 panel.

[0051] The above-mentioned wrapping member 11 and the separator 12 are formed separately, and are formed as follows Figure 1 and Figure 2 The shape shown can then be assembled by automated equipment.

[0052] The separator 12 is formed as follows: Figures 6 to 12 The separator forming device 2 shown in the figure is completed, which mainly forms the three supporting edges 122 of the separator 12 by bending. Figures 13 to 16 The wrapping forming device 3 shown is connected to the wrapping 11, mainly by bonding the three supporting edges 122 of the partition 12 to the corresponding two connecting edges 1111. Figure 21 and Figure 22 The package folding assembly shown in FIG. 1 bends the extended portion of the package 11 except the bottom plate and bonds the first side plate to the corresponding connecting edge to form a package 11. Figure 3 The status shown.

[0053] Product 100 will pass Figure 19 The grouping device 4 shown is grouped and arranged into a triangle, and then Figure 23 The group handling components 5 shown are transported in groups to Figure 3 In the packaging box to be packaged in the state shown, the Figure 4 Finally, after the other two connecting edges are coated with glue, Figure 25The package transport assembly 67 shown completes the packaging and transporting. Figure 5 The status shown.

[0054] 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.

[0055] The divider storage assembly 21 provides a vertical divider storage space. It includes a base plate and vertically fixed guide rods 211. The guide rods are arranged according to the divider contours to form a vertical storage space. A divider outlet is located at the bottom of the divider storage space. The edge of the divider outlet is provided with inwardly protruding baffles 212. Multiple baffles 212 are provided along the edge of the divider outlet, and the number of baffles can be adjusted according to the size of the divider. The baffles are relatively small so that when the divider suction cup absorbs the divider, it can overcome the resistance of the baffles and be released from the divider outlet.

[0056] The separator suction and transfer component 22 includes a separator suction cup 221 and a first separator translation and lifting mechanism that drives the separator suction cup to achieve translation and lifting. The separator suction cup is moved to the separator storage component 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 component 23.

[0057] Corresponding to the equilateral triangle shape of the separator, the separator suction cup 221 includes an equilateral triangle suction cup seat and three suction pipe openings 2211 arranged in a triangular pattern on the suction cup seat. Furthermore, the suction cup seat has arc-shaped corners, and above these arc-shaped corners is a curved retaining edge 2212 protruding from the upper plane of the suction cup seat. The curved retaining edge corresponds to the arc shape of the corners of the separator 12.

[0058] The first translation and lifting mechanism of the partition includes a linear motor 224, a linear guide rail 222, a worktable 223 installed on the linear guide rail, and a linear cylinder 225 installed on the worktable. The output end of the linear motor is connected to the worktable, and the linear motor drives the worktable to perform reciprocating linear motion along the linear guide rail. 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.

[0059] like Figure 12As shown, the separator bending assembly 23 includes a carrier plate 231, a limiting base plate 233, a support plate 232, and a suction pipe 234, which are arranged in parallel with each other. The limiting base plate is an equilateral triangle with rounded corners. The limiting base plate and the carrier plate are fixed together by a connecting rod. A linear cylinder 235 is installed on the carrier 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 linearly. The limiting base plate is provided with a through hole. The suction pipe is fixed to the carrier 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 plate 236. The three separator folding plates correspond to the three sides of the limiting base plate to bend the three supporting sides of the separator plate. After the linear cylinder drives the support plate to move linearly, it can cause the separator folding plates to reciprocate along the edge of the limiting base plate, thereby forming a separator folding plate protruding from one side of the limiting base plate and a separator folding plate away from the limiting base plate.

[0060] Furthermore, the suction cup seat and the limiting base plate are each provided with a vertically extending limiting groove in the middle of the three sides. The limiting groove cooperates with the separator folding plate 236. The separator folding plate 236 has two bending heads arranged side by side, and the ends of the bending heads are folded outward. When the separator bending assembly 23 is in operation, it is located above the suction cup seat and, through the suction pipe, the separator 12 is adsorbed on the bottom surface of the limiting base plate 233. The separator folding plate 236 presses the supporting edge 122 of the separator 12 downward, pressing the supporting edge toward the limiting groove on the side of the suction cup seat and the limiting base plate, and finally bending the supporting edge.

[0061] During operation, cardboard dividers are stacked in the storage space of the divider storage assembly. The divider suction cup on the divider transfer assembly moves to the divider outlet of the divider storage assembly. The suction cup is lifted by a linear cylinder and extends from the divider outlet into the divider storage space until it contacts and absorbs the divider. When the suction cup descends, it removes a divider. The suction cup then moves horizontally to the bottom of the divider bending assembly, which descends and the end of the suction cup grasps the divider. The divider folding plate descends to bend the divider, and finally the divider folding plate rises.

[0062] Furthermore, the separator bending assembly 23 is driven to translate and elevate by a second separator translation and elevation mechanism 24. The second separator translation and elevation mechanism comprises a lower movable plate connected to the loading plate, an upper movable plate disposed above the lower movable plate, a linear cylinder mounted on the upper movable plate, and a timing belt connected to the upper movable plate. The timing belt is used to translate the separator bending assembly, while the linear cylinder is used to elevate the separator bending assembly.

[0063] The package 11 has previously been formed as Figure 1The shape shown is formed by connecting the partition 12 formed by the partition forming device 2 and the wrapping member 11 together through the wrapping member forming device 3. Figures 13 to 18 As shown, the package forming device 3 includes a package storage component 31, a package suction and transfer component 32, and a package bending component 33.

[0064] like Figure 14 As shown, the package storage assembly 31 includes a base plate 311, a carrier 312 arranged above the base plate, a lifting driver 313 installed below the base plate for driving the carrier to rise and fall, and a baffle 314 vertically fixed to the base plate and movable upward through the carrier. The carrier and the baffle cooperate to form a package storage space; the lifting driver includes a guide rod, a screw rod, and a servo motor. The guide rod is vertically installed on the base plate, and the carrier is provided with a guide sleeve that cooperates with the guide rod. The screw is connected with a nut, and the nut is connected to the carrier. The servo motor drives the screw rod to rotate.

[0065] like Figure 15 As shown, the wrapping piece bending assembly 33 includes a loading template 331 for placing the wrapping piece and the partition, the front of the loading template is provided with a bevel corresponding to the two side edges on the bottom plate of the wrapping piece, the outer side of the bevel is provided with a wrapping piece folding plate 332 for squeezing the connecting edge 1111 of the wrapping piece when rising so that the connecting edge is bent vertically upward, the wrapping piece folding plate 332 is driven to rise and fall by a folding cylinder 333, and is also provided with a first glue gun 334 for spraying glue onto two of the supporting edges 122 of the partition 12.

[0066] like Figure 13 and Figure 15 As shown, the package suction and transfer assembly 32 includes a package suction cup 321 and a package translation and lifting mechanism 322 that drives the package suction cup to achieve translation and elevation. After the package suction cup absorbs a package stored in the package storage space, the package is transferred to the object loading template 331 via the package translation and lifting mechanism 322. The package translation and lifting mechanism includes a lower movable plate connected to the package suction cup, an upper movable plate located above the lower movable plate, a linear cylinder mounted on the upper movable plate, and a synchronous belt connected to the upper movable plate. The synchronous belt achieves translation of the package suction cup, and the linear cylinder achieves elevation of the package suction cup.

[0067] To facilitate the absorption of the package, the package suction cup 321 includes a suction cup base. The front half of the suction cup base is an isosceles trapezoid, and the back half is a rectangle. The back half is connected to the lower movable plate of the package translation and lifting mechanism via a connecting rod. After the package suction cup 321 absorbs the package, the two sides of the front half of the isosceles trapezoid are located inside the two side edges of the package base, without affecting the upward bending of the corresponding connecting edges. Correspondingly, the front half of the loading template is an isosceles trapezoid, and the back half is a rectangle. The upper side of the front half is provided with a positioning flange for positioning the package. After the package suction cup 321 absorbs the package and positions it using the positioning flange, the two side edges of the package base basically correspond to the two front oblique edges of the loading template.

[0068] In the initial state, the wrapping piece folding plate is at the low position. When in use, the wrapping piece suction cup 321 first sucks the wrapping piece 11 and places it on the object loading template 331, and then the separator bending component 23 claws and takes it. Figure 17 The separator 12 is shown placed on top of the wrapping member 11. When the separator is placed on the wrapping member, the wrapping member suction cup 321 and the separator bending assembly 23 remain attached. The bottom of the separator is supported by the wrapping member suction cup, keeping both the wrapping member and the separator stationary. Next, a first glue gun 334 sprays glue onto the two supporting edges 122 of the separator. The wrapping member folding plate of the wrapping member folding assembly 33 rises, bonding the connecting edge 1111 of the wrapping member to the separator's supporting edge 122. The wrapping member folding plate of the wrapping member folding assembly 33 then descends, followed by the wrapping member folding plate of the separator bending assembly 23, squeezing the two connecting areas before ascending.

[0069] Then, if Figure 18 As shown, the package suction cup 321 of the package suction transfer assembly drives the combined separator and package to be placed on the carrier 612 transported by the loading and conveying assembly 61 .

[0070] Products normally transported on a conveyor belt are arranged in a linear pattern, so products packaged in a triangular pattern need to be grouped.

[0071] like Figure 19As shown, a triangular arrangement grouping device 4 includes a conveyor belt 41, a first screw 43 and a second screw 44 arranged side by side on either side of the conveyor belt's conveying plane, and an intermediate stopper 42 located in the middle above the conveyor belt's conveying plane. The pitch of the first screw is greater than the pitch 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 is deployed and driven in a conventional manner. After the conveyor belt conveys two rows of products, the products are further separated and arranged under the guidance of the screws. Because the pitch of the first screw is greater than the pitch of the second screw, the first row of products corresponding to the first screw is arranged slightly apart, and the second row of products corresponding to the second screw is arranged more apart. Ultimately, the products are arranged in groups of three in a triangular arrangement.

[0072] Two door-shaped brackets are arranged side by side along the extending direction of the conveyor belt, and the two ends of the intermediate blocking rod are fixed on the cross beams of the door-shaped brackets through connecting pieces.

[0073] Next, each group of products arranged in a triangle needs to be placed into the packaging box in the intermediate state after being formed by the package forming device, and then it can be sent to the packaging device 6 for final packaging.

[0074] like Figure 22 As shown, the packaging device 6 includes a loading and conveying assembly 61, which includes two conveying chains 611 arranged side by side and a carrier 612 installed on the two conveying chains. Figure 18 As shown, the carrier 612 includes a supporting plate and a triangular supporting space provided on the supporting plate. The triangular supporting space is provided with limiting ribs 6121 at the three corners. The limiting ribs 6121 are arc-shaped and correspond to the rounded corners of the three corners of the package bottom plate. The carrier 612 is also provided with a limiting pin to limit the angle between the first side plate and the bottom plate of the package.

[0075] The three products of each group are placed together into the positioning holes of the separator by the group handling component 5. Figure 20 As shown, the group handling assembly 5 includes a fixed frame 51, three group suction cups 52 arranged in a triangle at the bottom of the fixed frame, and a group suction cup translation and lifting mechanism 54 that drives the fixed frame to translate and lift. Two of the three suction cups are fixedly mounted 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 move up and down, a synchronous belt that drives the fixed bracket and drives the translation and lifting bracket to translate horizontally, and a screw and nut assembly arranged on the translation and lifting bracket. The screw and nut assembly drives the fixed frame to translate longitudinally.

[0076] Initially, the linear cylinder retracts, causing one grouping suction cup 52 to be spaced farther apart from the other two, forming a triangular arrangement of equal lengths. The fixed frame 51 is mounted on the grouping suction cup translation and lifting mechanism 54. During operation, the grouping suction cups are first placed at the grouping device. Each grouping suction cup then ascends after picking up three products. Simultaneously, the linear cylinder 53 extends, aligning the three products, which were originally arranged at irregular intervals, to a uniform spacing. The three products are then placed into the positioning holes 1211 of the divider of the expanded packaging box on the carrier.

[0077] like Figures 20 to 25 As shown, the packaging device 6 includes the above-mentioned loading and conveying component 61, and also includes a packaging folding component and a packaging transport component 67.

[0078] The movement mode of the loading and conveying assembly 61 is always stepping movement, for example, it advances four carriers at a time. Therefore, after stepping one station, the package folding assembly can simultaneously perform package folding operations on the packaging boxes to be packaged on the four carriers.

[0079] like Figure 18 As shown, the preliminarily connected package and separator are placed into the carrier 612 through the above-mentioned package suction transfer assembly 32, and the rest of the package, except for the bottom plate portion that has been connected to the separator, extends outward from the triangular bearing space, hereinafter referred to as the protruding portion of the package.

[0080] Before the package is folded, glue needs to be sprayed on the outside of one of the supporting edges of the separator (specifically the supporting edge corresponding to the connection with the first side panel) so that the side panel can be bonded to the outside of the supporting edge when the package is folded. Figure 21 As shown, a second glue gun 62 is provided above the inlet side of the package folding assembly for spraying glue to the outer side of the supporting edge where the partition is bonded to the inner side of the first side panel. The glue gun is installed on the frame of the loading and conveying assembly.

[0081] like Figure 21 and Figure 22 As shown, the package folding assembly includes a package folding plate 63 that can be raised and lowered 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 an extrusion plate 65 that can be raised and lowered and translated above the loading and conveying assembly. The package folding plate 63 is used to press down and bend the first side plate, and the limiting push plate 64 and the extrusion plate 65 cooperate to clamp the first side plate on the package and the corresponding supporting edges on the partition together.

[0082] The package folding plate 63 is driven by the folding plate lifting and translation mechanism 631 , the limiting push plate 64 is driven by the limiting push plate translation cylinder 641 , and the extrusion plate 65 is driven by the extrusion plate lifting and translation mechanism 651 .

[0083] Specifically, the package hemming assembly further comprises two first gantry supports arranged side by side. The package hemming plate is mounted on a lifting beam, which is connected to a first lifting cylinder. A guide plate is slidably connected to the crossbeam of the first gantry support, and a first horizontal cylinder is fixed to the crossbeam of the first gantry support. 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 extrusion plate is mounted on the horizontal beam, which is connected to a second horizontal cylinder, which is connected to a second lifting cylinder, which is mounted on the crossbeam of the first gantry support. The above structure constitutes the extrusion plate lifting and translation mechanism 651. A second gantry support is positioned between the two first gantry supports. A limit push plate translation cylinder 641 is mounted on the column of the second gantry support. The piston rod of the limit push plate translation cylinder 641 is connected to the limit push plate, which is also connected to a guide rod. A guide sleeve that cooperates with the guide rod is mounted on the column of the first gantry support.

[0084] Further, such as Figure 22 As shown, the package folding assembly also includes a guide rod 66 arranged on the second side of the loading and conveying assembly. The guide rod is provided with an arc-shaped guide head on the side of the entrance of the package folding assembly. The guide head of the guide rod guides the protruding part of the package to fold inward and the guide rod is used to keep the protruding part of the package in a folded state during the subsequent package folding process.

[0085] Therefore, the protruding part of the package becomes vertical under the guidance of the guide rod, and then the first side panel is in the operating area of the packaging folding plate, the limiting push plate and the extrusion plate. At this time, the outer side of the remaining supporting edge of the partition has been sprayed with glue by the glue gun.

[0086] The package folding plate is capable of both lifting and translating. It first descends, bending the first side panel. It then translates, squeezing the first side panel, forcing it to bend 90 degrees with the bottom panel before returning to its initial position. Next, the limiting push plate translates from one side of the conveyor path until it pushes the first side panel of the package toward the support edge of the divider. The squeezing plate is capable of both lifting and translating. It first descends, inserting the squeezing plate into the positioning hole of the divider. It then translates, moving the squeezing plate toward the support edge of the divider. Ultimately, the first side panel of the package and the support edge of the divider are clamped together until they are bonded.

[0087] Furthermore, the loading and conveying assembly is rotatably connected to a flip plate 613 on the first side of the entrance side of the packaging folding assembly. The flip plate is driven by a flip cylinder to achieve flipping. Before the packaging box to be packaged is placed into the carrier, the flip plate flips outward and avoids the space above the carrier. When the packaging box to be packaged is placed into the carrier, the flip plate flips inward and is in a horizontal state to limit the packaging box to be packaged on the carrier.

[0088] Since the protruding portion of the package is relatively long, transportation on the loading and conveying assembly is not stable enough. In addition to limiting the position by the flip plate 613, the loading and conveying assembly is provided with a support rod 614 on the outer side of the second side of the inlet side of the package folding assembly, which extends along the conveying direction and supports the protruding portion of the package, so that the protruding portion of the package will not fold downward during transportation.

[0089] Furthermore, the package folding assembly further includes a first limiting rod 661 disposed on a first side of the loading and conveying assembly corresponding to the area where the package folding assembly is located, for limiting the position of the separator 12. During operation of the package folding assembly, the first limiting rod 661 limits the position of the separator 12 and the bottom plate of the wrapping member 11 below it. This allows the separator 12 and the bottom plate of the wrapping member 11 below it to remain stationary when the extended portion of the wrapping member folds upward.

[0090] After the package folding assembly bends and glues the protruding part of the package, it takes a while for the glue to fully take effect. Therefore, the loading and conveying assembly is provided with a second limiting rod 662 on the second side of the outlet side of the package folding assembly to maintain the folded state of the protruding part of the package.

[0091] After the bag folding component has finished its work, the loading and conveying component continues to step and convey to the next station. Therefore, this station is located at the exit side of the loading and conveying component at the bag folding component. Figure 24 As shown, a second glue gun 62 is provided at this station to spray glue on the outer sides of the other two connecting edges of the package. And at this station, the three products of each group are placed together into the positioning hole of the partition through the grouping and handling component 5. Figure 20 As shown, the grouping device 4 is arranged on the side of the loading and conveying component 61, and the grouping and transporting component 5 is located above the two. After the grouping device 4 completes the grouping, the three products in each group are placed together into the positioning hole of the partition through the grouping and transporting component 5.

[0092] Finally, the packaging and transportation are completed by the packaging and transportation component, that is, the extended part of the packaging piece is wrapped downward on the product, so that the two second side panels of the packaging piece are bonded to the corresponding two connecting edges, and then the product is transported after bonding.

[0093] like Figure 25As shown, the package handling assembly 67 includes a claw head mechanism and a claw head translation and lifting mechanism that drives the claw head mechanism to translate and lift. The claw head mechanism includes a claw head base 671 and a claw head suction cup 672 installed on the claw head base, two movable claw hands 674, and a fixed claw hand 673. A claw hand cylinder 677 is provided above the claw head base.

[0094] In addition, the claw head base has a push plate 676 located between the two movable claws, which acts on the overhanging portion of the package. The bottom cross-section of the tip of the push plate 676 is a trapezoidal surface that acts on the overhanging portion of the package. The fixed claw engages with the first side panel of the package, and the movable claw is driven to swing by the extension and contraction of the claw cylinder. The two movable claws engage with the other two second side panels of the package, and the edges of the two second side panels are fixed to the corresponding connecting edges by glue.

[0095] To limit the range of motion of the movable claw and avoid damage to the packaging box and the product inside, a limiting plate 675 is provided on the edge of the claw base, corresponding to the inner side of the movable claw, to limit the position of the movable claw. It is understood that the limiting plate 675 can also be provided on the inner side of the fixed claw. The limiting plate substantially covers the isosceles trapezoidal portion of the upper side panel of the package. The isosceles trapezoidal portion forms a slope after the package is sealed. Therefore, the limiting plate is a downwardly inclined plate with its inner sidewalls mating with the isosceles trapezoidal portion of the package side panel. The two movable claws 674 and one fixed claw 673 squeeze the rectangular portion of the side panel. The movable claws are equipped with vertical sections 6741 that, when restrained by the limiting plate, are in a vertical position and mate with the rectangular portion of the package side panel. This creates a three-dimensional rectangular portion and tightly fits the bottom edge of the side panel with the corresponding connecting edge, which is then ultimately secured by gluing. Therefore, the portion of the fixed claw located below the limiting plate is also in a vertical position.

[0096] After glue is sprayed onto the outer sides of the other two connecting edges of the package, the package handling assembly 67 intervenes. First, the claw mechanism moves horizontally, and the push plate 676 directly pushes down the protruding portion of the package, which covers the product. The claw mechanism then descends until the claw base 671 presses the protruding portion of the package onto the product. The movable claw then lowers, further bending the protruding portion of the package until the two side panels of the package connect to the two connecting edges sprayed with glue. Finally, the movable claw 674, the fixed claw 673, and the claw suction cup 672 work together to clamp and connect the entire package, and the sealed package is finally transported to the conveyor belt.

[0097] It is understandable that all the above functional components for achieving translation and lifting can be replaced by other common methods.

[0098] It is understandable that the above-mentioned product may be a yogurt cup, a Tetra Pak brick or other types of products.

[0099] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Those skilled in the art will understand that the invention includes, but is not limited to, the drawings and the contents described in the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the invention are intended to be included within the scope of the claims.

Claims

1. A triangular arrangement grouping device, characterized in that: The conveyor belt comprises a first screw and a second screw arranged side by side on both sides of the conveying plane of the conveyor belt, and an intermediate stop rod arranged in the middle position above the conveying plane of the conveyor belt, wherein the pitch of the first screw is greater than the pitch of the second screw, the first screw is driven by a first motor, and the second screw is driven by a second motor. It also comprises a grouping transport component for transporting products after grouping is completed, the grouping transport component comprises a fixed frame, three grouping suction cups arranged in a triangle on the fixed frame, and a grouping suction cup translation and lifting mechanism for driving the fixed frame to translate and lift, two of the three grouping 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, the grouping suction cup translation and lifting mechanism comprises a fixed bracket, a translation lifting bracket arranged below the fixed bracket, a lifting cylinder arranged on the fixed bracket for driving the translation lifting bracket to lift and lower, a cylinder that drives the fixed bracket and drives the translation lifting bracket to translate horizontally The movable synchronous belt and the screw-nut assembly provided on the translation lifting bracket are driven by the screw-nut assembly to move the fixed frame longitudinally; the three products of each group of products are placed together into the positioning holes of the partition of the packaging box in the unfolded state on the carrier through the grouping handling assembly, the packaging box includes a wrapping piece and a partition, the wrapping piece includes a bottom plate and a top plate of an equilateral triangle structure, and a side plate connecting the three side edges of the bottom plate and the top plate, the partition includes an equilateral triangle partition plate and supporting edges extending outward from the three side edges of the partition plate and bent vertically downward, and three positioning holes arranged in a triangular pattern are provided on the partition plate, the carrier includes a carrying plate and a triangular carrying space provided on the carrying plate, the triangular carrying space is provided with limiting ribs at the three corner positions, the limiting ribs are arc-shaped, corresponding to the rounded corners of the three corners of the bottom plate of the wrapping piece, the carrier is also provided with a limiting pin for limiting the angle position where the first side plate and the bottom plate on the wrapping piece are connected.

2. A triangular arrangement grouping device according to claim 1, characterized in that: Two door-shaped brackets are arranged side by side along the extending direction of the conveyor belt, and the two ends of the intermediate blocking rod are fixed on the cross beams of the door-shaped brackets through connecting pieces.

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