Upper opening packaging box automatic assembling machine

Abstract

The utility model discloses an automatic assembling machine for an upper opening packaging box. Comprising an automatic box body distributing and conveying mechanism (1), a box body positioning mechanism (2), a box body gluing mechanism (3), a box cover distributing structure (4), a box cover gluing mechanism (5), a box cover overturning mechanism (6), a box cover grabbing and assembling manipulator (7), a box cover pressing mechanism (8), a support strip distributing mechanism (9), a support strip gluing mechanism (10), a support strip overturning / forming mechanism (11), a support strip grabbing and assembling manipulator (12) and a support strip pressing mechanism (13). According to the full-automatic assembling machine, a series of actions such as automatic distribution and carrying of box bodies, automatic distribution of box covers, automatic gluing of the box covers, automatic assembling of the box covers and the box bodies, automatic distribution of support strips, automatic gluing of the support strips, automatic overturning and forming of the support strips, automatic assembling of the support strips and the box bodies, automatic bubble pressing and the like can be achieved in a full-automatic mode, the production speed is high, and the assembling precision is high; and the equipment is small in occupied area and less in manual labor.

Description

Technical Field

[0001] The utility model belongs to automatic production equipment for packaging boxes, in particular to an automatic assembly machine for top-opening packaging boxes. Background Art

[0002] The packaging box that opens from the top is widely used on many products, such as wine, because of its good support. The packaging box that opens from the top is formed by combining the box body, the box cover and the bracket strip. Specifically, the prepared box body and the box cover are first fixed together at the box mouth of the box body, that is, one end of the box cover is bonded to the inner wall of one side of the box mouth of the box body, and then a bracket strip bent into three sections is bonded on the fixed position of the box body and the box cover for reinforcement. Specifically, the middle section of the three-section bracket strip is pressed on the part where the box cover and the box body are bonded, and the two sections on the left and right are respectively bonded to the side walls of the box mouth on both sides of the bonding surface of the box cover in the box body. This process used to be manually operated, which was time-consuming and labor-intensive, and had low precision. In order to speed up production efficiency, there are now semi-automatic dispensing machines for gluing the box cover and the bracket strip; semi-automatic assembly machines for semi-automatic assembly of the box cover, the bracket strip and the box body. But in general, the pasting and assembly of the box body, box lid and bracket strips still requires a lot of manual participation, which is time-consuming and labor-intensive, and product quality is not easy to guarantee, and production efficiency is low. For this reason, people hope to find a production method for opening packaging boxes with a higher degree of automation and faster production efficiency. Utility Model Content

[0003] The utility model aims to provide an automatic assembly machine for top-opening packaging boxes with high automation, small floor space, good finished product quality and high production efficiency.

[0004] The utility model is realized by the following technical solutions:

[0005] The automatic assembly machine for top-opening packaging boxes includes a box body automatic material distributing and conveying mechanism, a box body positioning mechanism, a box body gluing mechanism, a box cover distributing mechanism, a box cover gluing mechanism, a box cover turning mechanism, a box cover grabbing and assembling robot, a box cover pressing mechanism, a bracket strip distributing mechanism, a bracket strip gluing mechanism, a bracket strip turning / forming mechanism, a bracket strip grabbing and assembling robot, and a bracket strip pressing mechanism;

[0006] The automatic material distribution and conveying mechanism for the box body comprises a belt conveyor device located at the front end and a stepping drive device located at the rear end; a liftable material blocking device is cooperatively arranged between the belt conveyor device and the stepping drive device; above the stepping drive device, along the conveying direction, there are box cover assembly stations, box cover pressing stations, box body gluing stations, bracket strip assembly stations, and bracket strip pressing stations in sequence; a box body positioning mechanism is arranged on the belt conveyor device, at least beside the box cover assembly station and the bracket strip assembly station; beside the box cover assembly station, a box cover distribution mechanism, a box cover gluing mechanism, a box cover flipping mechanism, and a box cover grabbing and assembling robot are cooperatively arranged; the box cover distribution mechanism, the box cover gluing mechanism, the box cover flipping mechanism, and the box cover grabbing and assembling robot are cooperatively arranged in sequence to The box cover is divided, glued, turned over and sent for assembly in sequence; a box cover pressing mechanism for pressing the box cover to the box body is arranged next to the box cover pressing station, and a box body gluing mechanism for gluing the side walls on both sides of the bonding surface of the box cover in the box body is arranged next to the box body gluing station; a bracket bar dividing mechanism, a bracket bar gluing mechanism, a bracket bar turning / molding mechanism and a bracket bar grasping and assembling robot are arranged next to the bracket bar assembling station, and the bracket bar dividing mechanism, the bracket bar gluing mechanism, the bracket bar turning / molding mechanism and the bracket bar grasping and assembling robot are arranged in sequence to divide the bracket bar, glue, turn over, mold and send it for assembly in sequence; a bracket bar pressing mechanism for pressing the bracket bar to the box body is arranged next to the bracket bar pressing station.

[0007] Preferably, the stepping drive device includes a fixed box body support frame located at the top and a ball screw located at the bottom with a plurality of moving blocks arranged on it, and each moving block is fixedly provided with a liftable paddle structure; the box body is fed onto the belt conveyor and then blocked by the blocking device. Every time a box body needs to be moved, the blocking device descends to allow a box body to pass and then rises to block it. The ball screw drives the liftable paddle structure to move under the box body that has passed the blocking device. Thereafter, the liftable paddle structure rises and is driven by the ball screw to move to the next station, thus completing one material distribution and stepping movement, that is, after a box body is received by the stepping drive device, it moves forward one station. When it needs to move next time, the stepping drive device is reset again, and then drives all the box bodies that have entered above the stepping drive device to move one station together. More preferably, the liftable paddle structure includes a connecting seat fixedly connected to the moving block of the ball screw and a lifting cylinder arranged on the connecting seat, a cross plate is fixedly provided on the movable end of the lifting cylinder, and a plurality of paddle blocks are sequentially provided on the cross plate, and the box body is driven to move by the paddle blocks.

[0008] Preferably, the box body positioning mechanism is arranged next to the stepping drive device, and includes a first clamping plate and a second clamping plate arranged opposite to each other, the first clamping plate and the second clamping plate are fixedly connected to one end of the first rocker arm block and the second rocker arm block respectively, the first rocker arm block and the second rocker arm block are both arranged on a fixed seat, a connecting rod is connected between the other end of the first rocker arm block and the end of the second rocker arm block connected to the second clamping plate through a pin shaft, and the other end of the second rocker arm block is fixedly connected to the movable end of a first cylinder, when the first cylinder is pulled outwards, the first clamping plate and the second clamping plate are clamped in the middle to position the box body, and when the first cylinder is pushed inwards, the first clamping plate and the second clamping plate are opened and lowered to both sides to loosen the box body; two box body positioning mechanisms are arranged next to the stepping drive device, corresponding to the box cover assembly station and the bracket strip assembly station respectively;

[0009] Preferably, the box body gluing mechanism, the box cover gluing mechanism and the support strip gluing mechanism all include a gluing head and a driving cylinder that can drive the gluing head to move up and down, the box cover gluing mechanism includes two gluing heads, which are a cold glue gluing head and a hot glue gluing head respectively; the box body gluing mechanism includes a cold glue gluing head, and the support strip gluing mechanism includes a hot glue gluing head.

[0010] Preferably, the box cover dispensing mechanism and the bracket strip dispensing mechanism both include a material bin for material stacking and a linear drive unit located below the material bin, and a paddle structure driven by the linear drive unit, wherein the paddle structure includes a fixed block and a paddle connected to the fixed block by a torsion spring pin, the paddle being located on one side of the lower end of the material stacking, and in a normal state, the paddle is tilted obliquely upward under the action of the torsion spring, and the tilted height is adapted to the thickness of a piece of material to be dispensed; the paddle structure is fixedly connected to a moving block driven by the linear drive unit through the fixed block; the moving block driven by the linear drive unit moves forward, driving the paddle to dispense a piece of material located at the bottom of the material stacking from one side of the material stacking to the other side, and after the paddle reaches a predetermined position, the moving block driven by the linear drive unit moves backward, driving the paddle to move back to its position, and when the paddle touches the material stacking again during the return journey, the paddle is pressed downward until it leaves the material stacking again, and the paddle returns to its normal height again under the action of the restoring force of the torsion spring, and contacts the bottom piece of material in the material stacking again, so that the material can be dispensed again.

[0011] More preferably, the linear drive unit is a ball screw.

[0012] Preferably, the box cover flipping mechanism comprises a first rotating shaft driven to rotate by a motor and a flipping plate fixedly arranged on the first rotating shaft, and a plurality of vacuum suction cups are arranged on the flipping plate.

[0013] Preferably, the box cover grabbing and assembling robot comprises a mechanical claw and a driving mechanism capable of driving the mechanical claw to move up, down, left, and right. More preferably, the mechanical claw is provided with a plurality of vacuum suction cups.

[0014] Preferably, the box cover pressing mechanism comprises a downward pressing block adapted to the width of the box cover and a driving unit for driving the pressing block to move up, down, left and right.

[0015] Preferably, the bracket bar flipping / forming mechanism includes a second rotating shaft driven by a motor and a flip frame fixedly arranged on the second rotating shaft, and the flip frame is provided with a plurality of fixed clamps and movable clamps that cooperate with each other for clamping, and the movable clamps are all arranged on a connecting plate and driven to move by a third cylinder, and the fixed clamps and movable clamps cooperate with each other to clamp the bracket bar and then flip it; the bracket bar is a three-section integrated structure, and there is a folding drive block on the outer side of the flip frame, corresponding to the lower side ends of the bracket bar, and the folding drive block is fixedly connected to one end of a swing arm arranged above the flip frame through a bracket, and the other end of the swing arm is fixedly connected to the movable end of a second cylinder, and when the second cylinder is pulled outward, the folding drive block is driven by the rocker arm to clamp upward to the middle, thereby completing the C-shaped forming of the bracket bar. More preferably, a support groove located on the outer side of the fixed clamp block and the movable clamp block that can support the end of the bracket bar is fixedly provided on the upper part of the folding drive block.

[0016] Preferably, the bracket bar grasping and assembling robot comprises a mounting plate and a driving structure that can drive the mounting plate to move up, down, left and right, and two releasing cylinders are relatively arranged on the back of the mounting plate, and on the front of the mounting plate, there are provided a bottom suction block and two side suction blocks located at the bottom, which are adapted to the bracket bar structure after being formed into a C shape and both contain vacuum suction nozzles. The lower ends of the two side suction blocks are connected with the mounting plate pins, and the upper ends are connected with the sliding rod sleeves that pass through the mounting plate and are driven by the releasing cylinders, and the mounting plate is provided with a conformal groove for the sliding rod to move left and right; when the bottom suction block sucks the middle section of the bracket bar formed into a C shape, the releasing cylinder drives the sliding rod outward, that is, allows the side suction blocks to contact and suck the side surfaces of the bracket bar formed into a C shape, so as to complete the material connection; when the bracket bar grasping and assembling robot brings the mounting plate into the bracket bar assembly station to load the bracket bar formed into a C shape into the box body, the bottom suction block releases the middle section of the bracket bar, and at the same time, the releasing cylinder drives the sliding rod inward, so that the side suction blocks are released and away from the two sides of the bracket bar, so as to complete the assembly of the bracket bar.

[0017] Preferably, the support strip pressing mechanism comprises two groups of clamping plates corresponding to the side walls on both sides of the box body and the box cover bonding surface and a cylinder for driving the clamping plates to move left and right.

[0018] The structural arrangement of the utility model allows the combined use of hot glue and cold glue during the assembly process of the packaging box. The ready-to-use effect of the hot glue can ensure the stability of the product under efficient assembly of the equipment, and avoid the problem of being unable to quickly adhere in a short time and thus being unable to perform high-speed and precise assembly when only cold glue is used. Although the cold glue needs a certain amount of time to solidify after spraying, it can ensure the bonding stability of the finished product in the later stage, and avoid the problem of weathering and cracking of the glued parts after packaging and long-term storage, which is easy to occur when only hot glue is used.

[0019] The beneficial effects of the utility model are:

[0020] The utility model discloses an automatic assembly machine for top-opening packaging boxes, which has an ingenious structure. As a new type of automated packaging box equipment, it can fully automatically realize a series of actions such as automatic material distribution and transportation of the box body, automatic material distribution of the box cover, automatic gluing of the box cover, automatic assembly of the box cover and the box body, automatic material distribution of the support strip, automatic gluing of the support strip, automatic flipping and forming of the support strip, automatic assembly of the support strip and the box body, and automatic bubble pressing, thereby solving the problem of multiple manual labor, with efficient connection between processes, fast production speed, and high assembly precision. Moreover, because there are hot glue and cold glue for bonding between the box cover and the box body and between the support strip and the box body, the ready-to-use function of the hot glue can ensure that the product can be efficiently assembled in the equipment. The stability under the condition of cold glue can be guaranteed by the function of maintaining long-term adhesion to ensure the bonding stability of the finished product in the later stage, avoiding the problem of easy weathering and cracking after long-term storage caused by using only hot glue or the problem of not being able to ensure bonding stability and affecting assembly accuracy under efficient assembly caused by using only cold glue. As a result, the top-opening packaging box can be produced efficiently and accurately, and because of the use of a stepping drive device, the box body can be divided into materials inside the assembly machine, so that the production line can be shorter and other coordination is also compact, which ultimately makes the equipment occupy a small area and can be suitable for the fast and high-precision production of various packaging boxes of different types and sizes, meeting production requirements, with strong practicality and worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model will be described through examples and with reference to the attached Figure 1-23 The method is described as follows:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an automatic assembly machine according to an embodiment of the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the automatic assembly machine according to an embodiment of the utility model from another angle;

[0024] Figure 3 for Figure 1 A schematic diagram of a top view structure;

[0025] Figure 4A schematic diagram of the three-dimensional structure of a top-opening wine box assembled by an automatic assembly machine according to an embodiment of the utility model;

[0026] Figure 5 It is a three-dimensional structural diagram of the box body automatic material distribution and conveying mechanism and the box body positioning mechanism in the embodiment of the utility model when they are combined together;

[0027] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0029] Figure 8 for Figure 5 A schematic cross-sectional structure diagram of ;

[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the equipment used for dividing the material, gluing, turning over, assembling the box cover onto the box body, and pressing in the embodiment of the utility model;

[0031] Fig.10 for Fig. 9 Enlarged view of point A in the middle;

[0032] Fig.11 It is a three-dimensional structural schematic diagram from another angle of the equipment used for distributing and conveying the box body and distributing, gluing, flipping, assembling and pressing the box cover in the embodiment of the utility model;

[0033] Fig.12 for Fig.11 Enlarged view of point A in the middle;

[0034] Fig.13 It is a three-dimensional structural schematic diagram of the box cover grabbing and assembling robot grasping and installing the box cover in the embodiment of the utility model;

[0035] Fig.14 It is a three-dimensional structural schematic diagram of the box cover grabbing and assembling robot grasping and installing the box cover onto the box body in the embodiment of the utility model;

[0036] Fig.15 It is a three-dimensional structural schematic diagram of the equipment used for dividing, gluing, flipping, shaping, assembling and pressing the support strips on the box body in the embodiment of the utility model;

[0037] Fig.16 It is a three-dimensional structural schematic diagram of the equipment used for dividing, gluing, flipping and molding the bracket strips in the embodiment of the utility model;

[0038] Fig.17 for Fig.16 A schematic cross-sectional structure diagram of ;

[0039] Fig.18 It is a three-dimensional structural schematic diagram of the bracket strip flipping / forming mechanism in the embodiment of the utility model;

[0040] Fig.19 It is a three-dimensional structural schematic diagram of another angle of the bracket strip flipping / forming mechanism in the embodiment of the utility model;

[0041] Fig. 20 It is a schematic diagram of the working state of the bracket strip flipping / forming mechanism in the embodiment of the utility model;

[0042] Fig.21 It is a partial three-dimensional structural schematic diagram of a support strip grabbing and assembling robot in an embodiment of the utility model;

[0043] Fig. 22 for Fig.21 Enlarged view of point A in the middle;

[0044] Fig.23 It is a detailed structural diagram of the lower part of the support strip grabbing and assembling robot in the embodiment of the utility model. DETAILED DESCRIPTION

[0045] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0046] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0047] like Figure 1-23 As shown, the automatic assembly machine for the upper opening packaging box includes a box body automatic material distributing and conveying mechanism 1, a box body positioning mechanism 2, a box body gluing mechanism 3, a box cover material distributing mechanism 4, a box cover gluing mechanism 5, a box cover turning mechanism 6, a box cover grabbing and assembling robot 7, a box cover pressing mechanism 8, a bracket strip material distributing mechanism 9, a bracket strip gluing mechanism 10, a bracket strip turning / forming mechanism 11, a bracket strip grabbing and assembling robot 12 and a bracket strip pressing mechanism 13;

[0048] The automatic material distributing and conveying mechanism 1 for the box body comprises a belt conveying device 14 at the front end and a stepping drive device 15 at the rear end. A liftable material blocking device 16 is cooperatively arranged between the belt conveying device 14 and the stepping drive device 15. Above the stepping drive device 15, along the conveying direction, it is divided into a box cover assembly station 17, a box cover pressing station 18, a box body gluing station 19, a bracket strip assembly station 20, and a bracket strip pressing station 21. A box body positioning mechanism 2 is arranged on the belt conveying device 14 and beside the box cover assembly station 17 and the bracket strip assembly station 20. Beside the box cover assembly station 17, a box cover distributing mechanism 4, a box cover gluing mechanism 5, a box cover flipping mechanism 6, and a box cover grabbing and assembling robot 7 are cooperatively arranged. The box cover distributing mechanism 4, the box cover gluing mechanism 5, the box cover flipping mechanism 6, and the box cover grabbing and assembling robot 7 are cooperatively arranged in sequence to sequentially The box cover is divided, glued, turned over, and sent for assembly; a box cover pressing mechanism 8 for pressing the box cover 200 and the box body 100 is arranged next to the box cover pressing station 18, and a box body gluing mechanism 3 for gluing the side walls on both sides of the box cover bonding surface in the box body 100 is arranged next to the box body gluing station 19; a bracket bar dividing mechanism 9, a bracket bar gluing mechanism 10, a bracket bar turning / molding mechanism 11, and a bracket bar grabbing and assembling robot 12 are arranged next to the bracket bar assembling station 20. The bracket bar dividing mechanism 9, the bracket bar gluing mechanism 10, the bracket bar turning / molding mechanism 11, and the bracket bar grabbing and assembling robot 12 are arranged in sequence to divide the bracket bar, glue, turn over, mold, and send it for assembly in sequence; a bracket bar pressing mechanism 13 for pressing the bracket bar 300 and the box body 100 is arranged next to the bracket bar pressing station 21.

[0049] The stepping drive device 15 comprises a fixed box body support frame 15.1 at the top and a ball screw 15.2 at the bottom with a plurality of moving blocks arranged on the top, each moving block is fixed with a liftable paddle structure 15.3; the box body 100 is fed to the belt conveyor 14 and then blocked by the blocking device 16. Whenever a box body 100 needs to be moved, the blocking device 16 is lowered to allow a box body to pass through and then raised to block, and the ball screw 15.2 drives the liftable paddle structure 15.3 to move the box body 100 to the belt conveyor 14. The sheet structure 15.3 moves to the bottom of the box body that has passed the material blocking device 16, and then the liftable paddle structure 15.3 is lifted and driven by the ball screw 15.2 to move to the next station, thus completing one material distribution and stepping movement, that is, after a box body 100 is received by the stepping drive device 15, it moves forward one station, and when it needs to move next time, the stepping drive device 15 is reset again, and then drives all the box bodies 100 that have entered the top of the stepping drive device 15 to move one station together. The liftable paddle structure 15.3 includes a connecting seat fixedly connected to the moving block of the ball screw 15.2 and a lifting cylinder 15.4 arranged on the connecting seat, a horizontal plate is fixedly provided on the movable end of the lifting cylinder 15.4, and a plurality of paddle blocks 15.5 are arranged on the horizontal plate in sequence, and the box body is driven to move by the paddle blocks 15.5.

[0050] The box body positioning mechanism 2 is arranged beside the stepping drive device 15, and includes a first clamping plate 2.1 and a second clamping plate 2.2 arranged opposite to each other. The first clamping plate 2.1 and the second clamping plate 2.2 are fixedly connected to one end of a first rocker arm block 2.3 and a second rocker arm block 2.4 respectively. The first rocker arm block 2.3 and the second rocker arm block 2.4 are both arranged on a fixing seat 2.5. The other end of the first rocker arm block 2.3 and the end of the second rocker arm block 2.4 connected to the second clamping plate 2.2 are connected by a pin. A connecting rod 2.6, the other end of the second rocker arm block 2.4 is fixedly connected to the movable end of a first cylinder 2.7, when the first cylinder is pulled outward, the first clamping plate 2.1 and the second clamping plate 2.2 are clamped in the middle to position the box body 100, and when the first cylinder is pushed inward, the first clamping plate 2.1 and the second clamping plate 2.2 are opened and lowered to both sides to release the box body 100; two box body positioning mechanisms 2 are arranged next to the stepping drive device 15, corresponding to the box cover assembly station and the bracket strip assembly station respectively;

[0051] The box body gluing mechanism 3, the box cover gluing mechanism 5 and the support strip gluing mechanism 10 all include a gluing head 5.1 and a driving cylinder that can drive the gluing head 5.1 to move up and down. The box cover gluing mechanism 5 includes two gluing heads, which are a cold glue gluing head and a hot glue gluing head respectively; the box body gluing mechanism 3 includes a cold glue gluing head, and the support strip gluing mechanism 10 includes a hot glue gluing head.

[0052] The box cover material dispensing mechanism 4 and the bracket strip material dispensing mechanism 9 both include a silo 4.1 for material stacking, a linear drive unit 4.2 located below the silo, and a paddle structure 4.3 driven by the linear drive unit 4.2. The paddle structure 4.3 includes a fixed block and a paddle 4.4 connected to the fixed block by a torsion spring pin. The paddle 4.4 is located at one side of the lower end of the material stacking. Under normal conditions, the paddle 4.4 tilts obliquely upward under the action of the torsion spring, and the tilting height is adapted to the thickness of a piece of material to be dispensed. The paddle structure 4.3 is connected to the fixed block and the moving block driven by the linear drive unit 4.2. The linear drive unit 4.2 drives the moving block to move forward, driving the paddle 4.4 to push out the lowest piece of material on the material stack from one side of the material stack to the other side. After reaching the predetermined position, the moving block driven by the linear drive unit 4.2 moves backward, driving the paddle 4.4 to move back to its original position. When the paddle 4.4 touches the material stack again during the return journey, the paddle 4.4 is pressed downward until it leaves the material stack again. Then, the paddle 4.4 returns to its normal height under the restoring force of the torsion spring and contacts the lowest piece of material on the material stack again, so that the material can be pushed out again.

[0053] The linear drive unit 4.1 is a ball screw.

[0054] The box cover turning mechanism 6 comprises a first rotating shaft 6.1 driven to rotate by a motor and a turning plate 6.2 fixedly arranged on the first rotating shaft, and a plurality of vacuum suction cups are arranged on the turning plate 6.2.

[0055] The box cover grabbing and assembling robot 7 comprises a mechanical claw 7.1 and a driving mechanism 7.2 which can drive the mechanical claw 7.1 to move up, down, left, and right. The driving mechanism 7.2 is an existing driving structure which can drive an object to move up, down, left, and right. The mechanical claw 7.1 is provided with a plurality of vacuum suction cups.

[0056] The box cover pressing mechanism 8 comprises a downward pressing block 8.1 adapted to the width of the box cover and an existing driving unit for driving the pressing block to move up, down, left and right.

[0057] The support strip flipping / forming mechanism 11 comprises a second rotating shaft 11.1 driven to rotate by a motor and a flipping frame 11.2 fixedly arranged on the second rotating shaft 11.1, and the flipping frame 11.2 is provided with a plurality of fixed clamping blocks 11.3 and movable clamping blocks 11.4 which cooperate with each other for clamping, and the movable clamping blocks 11.4 are all arranged on a connecting plate and driven to move by a third cylinder 11.9, and the fixed clamping blocks 11.3 and the movable clamping blocks 11.4 cooperate with each other to clamp the support strip 300 and then flip it; The rack bar 300 is a three-section integrated structure. On the outer side of the flip frame 11.2, corresponding to the lower side ends of the rack bar 300, there is a folding drive block 11.5. The folding drive block 11.5 is fixedly connected to one end of a swing arm 11.6 mounted on the top of the flip frame 11.2 through a bracket. The other end of the swing arm 11.6 is fixedly connected to the movable end of a second cylinder 11.7. When the second cylinder 11.7 is pulled outward, the folding drive block 11.5 is driven by the swing arm 11.6 to clamp upward and in the middle, thereby completing the C-shaped forming of the rack bar. A supporting groove 11.8 located outside the fixed clamp block 11.3 and the movable clamp block 11.4, which can support the end of the rack bar 300, is fixedly provided on the upper part of the folding drive block 11.5.

[0058] The support bar grabbing assembly robot 12 includes a mounting plate 12.1 and a driving structure 12.7 that can drive the mounting plate 12.1 to move up, down, left, and right. The driving structure 12.7 is an existing driving structure that can drive an object to move up, down, left, and right, such as including a horizontal push cylinder and a vertical push cylinder. Two release cylinders 12.2 are relatively arranged on the back of the mounting plate 12.1. On the front of the mounting plate 12.1, there are a bottom suction block 12.3 and two side suction blocks 12.4 located at the bottom, both of which contain vacuum suction nozzles and are adapted to the support bar structure after being formed into a C shape. The lower ends of the two side suction blocks 12.4 are connected to the mounting plate 12.1 pin, and the upper ends are connected to the slide bar 12.5 driven by the release cylinder 12.2 and passing through the mounting plate 12.1. The mounting plate 12.1 is provided with a conformal groove 12.6 for the slide bar 12.5 to move left and right; the bottom suction block 12.3 sucks the formed support bar structure. When the middle section of the C-shaped bracket strip 300 is formed, the cylinder 12.2 is released to drive the slide bar 12.5 outward, that is, the side suction block 12.4 contacts and sucks the side of the C-shaped bracket strip 300 to complete the material connection; when the bracket strip grasping and assembly robot 12 brings the mounting plate 12.1 into the bracket strip assembly station to load the C-shaped bracket strip 300 into the box body 100, the bottom suction block 12.3 releases the middle section of the bracket strip 300, and at the same time releases the cylinder 12.2 to drive the slide bar 12.5 inward, so that the side suction block 12.4 is released and away from the two sides of the bracket strip 300, completing the assembly of the bracket strip 300.

[0059] The support strip pressing mechanism 13 comprises two groups of clamping plates 13.1 corresponding to the side walls on both sides of the box body and the box cover bonding surface and a cylinder for driving the clamping plates to move left and right.

[0060] The method for producing a top-opening packaging box using the above-mentioned automatic assembly machine for top-opening packaging boxes comprises the following steps:

[0061] (1) The box body is sent into the belt conveyor of the box body automatic material distribution and conveying mechanism. The material blocking device located between the belt conveyor and the stepping drive device cooperates with the material blocking device so that the stepping drive device only transports one box body at a time, so as to achieve the material distribution of the box bodies entering the belt conveyor device one by one. The box bodies after the material distribution are sent one by one by the stepping drive device to the box cover assembly station, the box cover pressing station, the box body gluing station, the bracket strip assembly station, and the bracket strip pressing station. At the box cover assembly station and the bracket strip assembly station, the box body is fixed by the box body positioning mechanism to ensure the assembly accuracy;

[0062] (2) At the box cover assembly station, the box cover with glue applied to the bonding installation surface is automatically assembled to the box body and box mouth by the box cover grabbing and assembling robot; before that, the box cover material distribution mechanism, the box cover gluing mechanism, the box cover flipping mechanism and the box cover grabbing and assembling robot cooperate in sequence to distribute the box cover with the bonding installation surface facing upward one by one, apply cold glue and hot glue to the bonding part, flip, grab and send it to the box cover assembly station for assembly with the box body and box mouth;

[0063] (3) At the box cover pressing station, the box cover pressing mechanism automatically presses the bonding surface between the box cover and the box body to remove bubbles;

[0064] (4) At the box body gluing station, cold glue is applied to the side walls on both sides of the bonding surface of the box cover inside the box body through the box cover gluing mechanism;

[0065] (5) At the bracket strip assembly station, the bracket strip that has been formed into a C shape is automatically assembled onto the box body and the box mouth by the bracket strip grabbing and assembling robot; before that, the bracket strip material distribution mechanism, the bracket strip gluing mechanism, the bracket strip flipping / molding mechanism and the bracket strip grabbing and assembling robot cooperate in sequence to divide the bracket strips with the bonding installation surface facing upward one by one, apply hot glue on the bonding installation surface, flip, mold into a C shape, grab and send to the bracket strip assembly station for assembly with the box body and the box mouth;

[0066] (6) At the bracket strip pressing station, the bracket strip pressing mechanism automatically presses the bonding surface between the bracket strip and the box body to remove bubbles, thereby completing the assembly of the upper opening packaging box.

[0067] The gluing and bonding process of the box body, box cover and bracket strips is as follows:

[0068] Firstly, the box cover with the bonding installation surface facing upward is divided one by one by the box cover dividing mechanism. During the movement, hot glue and cold glue are applied to the bonding installation position where the box cover is bonded to the inner wall of the box opening of the box body by the box cover gluing mechanism, and then the box cover is turned over and assembled with the box opening of the box body.

[0069] Then, while the box body is being transported, the box body glue coating mechanism applies cold glue to the side walls of the box opening on both sides of the box cover bonding surface inside the box body, and then the box body is transported to the support strip assembly station, and the formed support strip is assembled on the box opening. At the same time, the support strips with the bonding installation surface facing upward are divided one by one by the support strip dividing mechanism, and a layer of hot glue is applied to the bonding installation surface by the support strip glue dispensing mechanism during the movement, and then turned over and assembled with the box opening. In this way, there are hot glue and cold glue for bonding between the box cover and the box body, and between the support strip and the box body.

[0070] The structural arrangement of the utility model allows the combined use of hot glue and cold glue during the assembly process of the packaging box. The ready-to-use effect of the hot glue can ensure the stability of the product under efficient assembly of the equipment, and avoid the problem of being unable to quickly adhere in a short time and thus being unable to perform high-speed and precise assembly when only cold glue is used. Although the cold glue needs a certain amount of time to solidify after spraying, it can ensure the bonding stability of the finished product in the later stage, and avoid the problem of weathering and cracking of the glued parts after packaging and long-term storage, which is easy to occur when only hot glue is used.

[0071] The utility model discloses an automatic assembly machine for top-opening packaging boxes, which has an ingenious structure. As a new type of automated packaging box equipment, it can fully automatically realize a series of actions such as automatic material distribution and transportation of the box body, automatic material distribution of the box cover, automatic gluing of the box cover, automatic assembly of the box cover and the box body, automatic material distribution of the support strip, automatic gluing of the support strip, automatic flipping and forming of the support strip, automatic assembly of the support strip and the box body, and automatic bubble pressing, thereby solving the problem of multiple manual labor, with efficient connection between processes, fast production speed, and high assembly precision. Moreover, because there are hot glue and cold glue for bonding between the box cover and the box body and between the support strip and the box body, the ready-to-use function of the hot glue can ensure that the product can be efficiently assembled in the equipment. The stability under the condition of cold glue can be guaranteed by the function of maintaining long-term adhesion to ensure the bonding stability of the finished product in the later stage, avoiding the problem of easy weathering and cracking after long-term storage caused by using only hot glue or the problem of not being able to ensure bonding stability and affecting assembly accuracy under efficient assembly caused by using only cold glue. As a result, the top-opening packaging box can be produced efficiently and accurately, and because of the use of a stepping drive device, the box body can be divided into materials inside the assembly machine, so that the production line can be shorter and other coordination is also compact, which ultimately makes the equipment occupy a small area and can be suitable for the fast and high-precision production of various packaging boxes of different types and sizes, meeting production requirements, with strong practicality and worthy of promotion.

[0072] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. Top opening packaging box automatic assembly machine, characterized by: It comprises a box body automatic material distributing and conveying mechanism (1), a box body positioning mechanism (2), a box body gluing mechanism (3), a box cover material distributing mechanism (4), a box cover gluing mechanism (5), a box cover turning mechanism (6), a box cover grabbing and assembling robot (7), a box cover pressing mechanism (8), a bracket strip material distributing mechanism (9), a bracket strip gluing mechanism (10), a bracket strip turning / forming mechanism (11), a bracket strip grabbing and assembling robot (12) and a bracket strip pressing mechanism (13); The box body automatic material distribution and conveying mechanism (1) comprises a belt conveying device (14) located at the front end and a stepping drive device (15) located at the rear end. A liftable material blocking device (16) is provided between the belt conveying device (14) and the stepping drive device (15). Above the stepping drive device (15), along the conveying direction, there are a box cover assembly station (17), a box cover pressing station (18), a box body gluing station (19), a bracket strip assembly station (20), and a bracket strip pressing station. (21), a box body positioning mechanism (2) is provided on the belt conveyor (14), at least beside the box cover assembly station (17) and the support strip assembly station (20), and a box cover material distribution mechanism (4), a box cover glue coating mechanism (5), a box cover flipping mechanism (6), and a box cover grabbing and assembling robot (7) are provided beside the box cover assembly station (17). The box cover material distribution mechanism (4), the box cover glue coating mechanism (5), the box cover flipping mechanism (6), and the box cover grabbing and assembling robot (7) cooperate in sequence. The box cover is arranged to be divided, glued, turned over, and sent for assembly in sequence; a box cover pressing mechanism (8) for pressing the box cover (200) and the box body (100) is provided next to the box cover pressing station (18); a box body gluing mechanism (3) for gluing the side walls of the box body (100) on both sides of the box cover bonding surface is provided next to the box body gluing station (19); and a bracket strip dividing mechanism (9) and a bracket strip gluing mechanism (10) are provided next to the bracket strip assembly station (20). , a bracket strip flipping / molding mechanism (11), and a bracket strip grabbing and assembling robot (12); the bracket strip material distribution mechanism (9), the bracket strip gluing mechanism (10), the bracket strip flipping / molding mechanism (11), and the bracket strip grabbing and assembling robot (12) are arranged in sequence to distribute, glue, flip, mold, and assemble the bracket strips in sequence; a bracket strip pressing mechanism (13) for pressing the bracket strip (300) against the box body (100) is arranged next to the bracket strip pressing station (21).

2. The automatic assembly machine for top-opening packaging boxes according to claim 1, characterized in that: The stepping drive device (15) comprises a fixed box body support bar frame (15.1) located at the top and a ball screw (15.2) located at the bottom and provided with a plurality of moving blocks thereon, each moving block being fixedly provided with a liftable paddle structure (15.3).

3. The automatic assembly machine for top-opening packaging boxes according to claim 1, characterized in that: The box body positioning mechanism (2) is arranged beside the stepping drive device (15), and comprises a first clamping plate (2.1) and a second clamping plate (2.2) arranged opposite to each other. The first clamping plate (2.1) and the second clamping plate (2.2) are respectively fixedly connected to one end of a first rocker arm block (2.3) and a second rocker arm block (2.4). The first rocker arm block (2.3) and the second rocker arm block (2.4) are both arranged on a fixed seat (2.5). A connecting rod (2.6) is connected between the other end of the first rocker arm block (2.3) and the end of the second rocker arm block (2.4) connected to the second clamping plate (2.2) via a pin shaft. The other end of the second rocker arm block (2.4) is fixedly connected to the movable end of a first cylinder (2.7). Two box body positioning mechanisms (2) are arranged beside the stepping drive device (15), corresponding to the box cover assembly station and the bracket bar assembly station respectively.

4. The automatic assembly machine for top-opening packaging boxes according to claim 1, characterized in that: The box body gluing mechanism (3), the box cover gluing mechanism (5) and the support strip gluing mechanism (10) all comprise a gluing head (5.1) and a driving cylinder capable of driving the gluing head (5.1) to move up and down; the box cover gluing mechanism (5) comprises two gluing heads, which are a cold glue gluing head and a hot glue gluing head respectively; the box body gluing mechanism (3) comprises a cold glue gluing head, and the support strip gluing mechanism (10) comprises a hot glue gluing head.

5. The automatic assembly machine for top-opening packaging boxes according to claim 1, characterized in that: The box cover material dispensing mechanism (4) and the bracket strip material dispensing mechanism (9) both comprise a material bin (4.1) for material stacking, a linear drive unit (4.2) located below the material bin, and a paddle structure (4.3) driven by the linear drive unit (4.2); the paddle structure (4.3) comprises a fixed block and a paddle (4.4) connected to the fixed block via a torsion spring pin, the paddle (4.4) being located at one side of the lower end of the material stacking; the paddle structure (4.3) is fixedly connected to a moving block driven by the linear drive unit (4.2) via the fixed block.

6. The automatic assembly machine for top-opening packaging boxes according to claim 1, characterized in that: The box cover turning mechanism (6) comprises a first rotating shaft (6.1) driven to rotate by a motor and a turning plate (6.2) fixedly arranged on the first rotating shaft, and a plurality of vacuum suction cups are arranged on the turning plate (6.2).

7. The automatic assembly machine for top-opening packaging boxes according to claim 1, characterized in that: The support strip flipping / forming mechanism (11) comprises a second rotating shaft (11.1) driven to rotate by a motor and a flip frame (11.2) fixedly arranged on the second rotating shaft (11.1), the flip frame (11.2) being provided with a plurality of fixed clamping blocks (11.3) and movable clamping blocks (11.4) that cooperate with each other for clamping, the movable clamping blocks (11.4) being arranged on a connecting plate and driven to move by a third cylinder (11.9), the fixed clamping blocks (11.3) and the movable clamping blocks (11.4) being arranged on a connecting plate and driven to move by a third cylinder (11.9), 1.4) cooperate with each other and are used to clamp the support bar (300) and then flip it; the support bar (300) is a three-section integrated structure, and a folding drive block (11.5) is provided on the outer side of the flip frame (11.2) and below the two side ends of the support bar (300). The folding drive block (11.5) is fixedly connected to one end of a swing arm (11.6) mounted above the flip frame (11.2) through a bracket, and the other end of the swing arm (11.6) is fixedly connected to the movable end of a second cylinder (11.7).

8. The automatic assembly machine for top-opening packaging boxes according to claim 1, characterized in that: The support strip grabbing assembly robot (12) comprises a mounting plate (12.1) and a driving structure (12.7) capable of driving the mounting plate (12.1) to move up, down, left and right. Two release cylinders (12.2) are arranged opposite to each other on the back of the mounting plate (12.1). A bottom suction block (12.3) and two side suction blocks (12.4) are arranged on the front of the mounting plate (12.1) and are adapted to the support strip structure after being formed into a C shape. The lower ends of the two side suction blocks (12.4) are pin-connected to the mounting plate (12.1), and the upper ends are sleeve-connected to a slide bar (12.5) driven by the release cylinder (12.2) and passing through the mounting plate (12.1). The mounting plate (12.1) is provided with a conformal groove (12.6) for the slide bar (12.5) to move left and right.

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