Automatic gluing and forming equipment for preventing glue overflow of box cover and control method of automatic gluing and forming equipment

Abstract

The invention relates to the technical field of wine box forming, and particularly discloses automatic gluing and forming equipment for preventing glue overflow of a box cover and a control method thereof.The equipment comprises a workbench, a gluing device arranged on the workbench and a parallel material taking mechanical arm matched with the gluing device; the gluing device comprises at least two gluing mechanisms which are arranged in parallel, the parallel material taking mechanical arm comprises a first mechanical arm and a second mechanical arm which are arranged in a reciprocating mode relative to the workbench, and the first mechanical arm and the second mechanical arm are used for picking up external sealing strips and box covers and transferring the sealing strips and the box covers to the gluing mechanisms for gluing; the gluing mechanism comprises a glue storage groove formed in the workbench, a gluing roller rotationally arranged in the glue storage groove and a first rotating motor connected with the gluing roller and used for driving the gluing roller to rotate, and the gluing roller is provided with a cam protruding out of the end face of the glue storage groove. The cam is used for being matched with the transfer action of the parallel material taking mechanical arm to coat the glue in the glue storage groove to the sealing strip and the box cover.

Description

Technical Field

[0001] The invention relates to the technical field of wine box molding, and in particular discloses an automatic gluing and molding device for preventing glue overflow from a box cover and a control method thereof. Background Art

[0002] In the packaging industry, the combined bonding process of box lids and sealing strips is a key step to ensure the sealing and aesthetics of packaging. At present, glue coating equipment is widely used in the gluing of box lids and sealing strips. However, the technical level of existing glue coating equipment is difficult to meet the production requirements of high efficiency, high precision and high quality.

[0003] Most existing glue coating devices are fixed structures and lack the function of dynamically adjusting the glue coating angle and glue amount, resulting in uneven glue coating thickness or exceeding the design range, which in turn causes glue overflow, affecting not only the bonding effect but also the appearance of the finished product. At the same time, excessive use of glue also causes resource waste and increased costs. In addition, due to the lack of flexibility of existing equipment, its glue coating mechanism is difficult to adapt to box lids and sealing strips of different sizes and materials, and its scope of application is limited, further restricting the production needs of enterprises.

[0004] To solve the above problems, some technical solutions try to improve them by increasing the glue coating accuracy or improving the molding process, but the existing equipment is complex in design and high in manufacturing cost, and still cannot achieve the integrated automatic operation of glue coating and molding process. Therefore, there is an urgent need for a device that can improve the glue coating accuracy, prevent glue overflow, dynamically adjust the glue coating parameters and achieve the integrated operation of glue coating and molding, so as to meet the automated production needs of box lids and sealing strips of different specifications. Summary of the invention

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide an automatic glue coating and molding device for preventing glue overflow from a box cover and a control method thereof, so as to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides an automatic glue coating and molding device for preventing glue overflow of a box cover, comprising a workbench, a glue coating device arranged on the workbench, and a parallel material taking manipulator arranged in cooperation with the glue coating device; The gluing device includes at least two gluing mechanisms arranged in parallel, and the parallel material taking manipulator includes a first manipulator and a second manipulator arranged to reciprocate relative to the workbench, and the first manipulator and the second manipulator are respectively used to pick up the external sealing strip and the box cover and transfer them to the gluing mechanism for gluing; The glue coating mechanism includes a glue storage tank arranged on a workbench, a glue coating roller rotatably arranged in the glue storage tank, and a first rotating motor connected to the glue coating roller for driving the glue coating roller to rotate. The glue coating roller has a cam arranged on the end surface protruding out of the glue storage tank. The cam is used to cooperate with the transfer action of the parallel material picking robot to coat the glue in the glue storage tank onto the sealing strip and the box cover.

[0007] Furthermore, the glue storage tank of the glue coating mechanism is rotatably set on the workbench, and two cams are provided. The two cams are arranged along the radial direction of the glue coating roller and are used to coat the glue in the glue storage tank on the box cover and the sealing strip respectively; a first protrusion is provided on the glue storage tank, and a second protrusion is provided on the parallel material picking robot. The parallel material picking robot moves back and forth so that the second protrusion contacts and passes over the first protrusion, so that the two cams of the glue storage tank and the glue coating roller are arranged tilted relative to the workbench.

[0008] Furthermore, the gluing device includes a first gluing mechanism and a second gluing mechanism. The glue storage tank of the first gluing mechanism is used to store hot melt glue, and the glue storage tank of the second gluing mechanism is used to store cold glue. The first gluing mechanism and the second gluing mechanism have the same structure. The parallel material taking robot moves back and forth relative to the first gluing mechanism and the second gluing mechanism to sequentially complete the hot glue and cold glue coating on the sealing strip and the box cover.

[0009] Furthermore, at least two glue pressing rollers are rotatably arranged on the workbench, the number of the glue pressing rollers is the same as the number of the glue coating mechanisms, and the glue pressing rollers are used to contact the top of the box cover transferred by the second manipulator to cooperate with the gluing action of the cam.

[0010] Furthermore, the parallel material picking robot also includes a frame arranged on one side of the workbench, the first robot includes a first slide arranged on the frame for reciprocating movement along the X-axis direction, a linear drive module connected to the first slide, a first bracket arranged on the first slide, and a suction cup assembly arranged on the first bracket for reciprocating movement along the Z-axis direction, a first lifting cylinder is provided on the first bracket, and the output end of the first lifting cylinder is connected to the suction cup assembly, and the suction cup assembly is used to absorb or release the external sealing strip.

[0011] Furthermore, the second manipulator includes a second lifting cylinder arranged on the first slide, a first transverse movement cylinder arranged at the output end of the second lifting cylinder, and a clamping claw assembly arranged at the output end of the first transverse movement cylinder; the second lifting cylinder is used to drive the first transverse movement cylinder to reciprocate along the Z-axis direction, and the first transverse movement cylinder is used to drive the clamping claw assembly to reciprocate along the Y-axis direction, and the clamping claw assembly is used to clamp or release the external box cover.

[0012] Furthermore, it also includes a bending device, which includes a support seat arranged on one side of the workbench, a limit platform arranged on the support seat for carrying the sealing strip and the box cover, and a bending mechanism arranged between the support seat and the limit platform; The bending mechanism includes two bending arms rotatably arranged on both sides of the limit platform and two third lifting cylinders connected to the two bending arms. The external sealing strip and the box cover are coated with glue by the gluing device and then transferred to the limit platform for combined pasting by the parallel material taking robot. The two third lifting cylinders are respectively used to drive the two bending arms to rotate and approach each other to bend the two sides of the sealing strip into a "U" shape.

[0013] Furthermore, a distance adjusting mechanism is also provided on the support seat, which includes a screw rod rotatably arranged on the support seat and a second rotating motor connected to the screw rod for driving it to rotate. The screw rod has two outer spiral parts with opposite spiral directions. Two limit platforms are provided. The two limit platforms are respectively threadedly sleeved on the two outer spiral parts and slidingly cooperate with the support seat. The second rotating motor is used to drive the screw rod to rotate so that the screw rod links the two limit platforms to move closer or farther away synchronously.

[0014] Furthermore, the limit table is recessed with a first accommodating position for accommodating the tongue of the box cover, and the bending arm includes a bending base rotatably connected to the output end of the third lifting cylinder, a first baffle plate arranged on the bending base, a second baffle plate arranged to reciprocate relative to the first baffle plate, and a third transverse cylinder connected to the second baffle plate; the first baffle plate is cross-arranged relative to the bending base, the second baffle plate and the first baffle plate are arranged parallel to each other, the bending base, the first baffle plate and the second baffle plate form a second accommodating position for accommodating the sealing strip, the first accommodating position and the second accommodating position are cross-arranged and overlapped with each other, and the third transverse cylinder is used to drive the second baffle plate to approach or move away from the first baffle plate to adjust the distance between the two.

[0015] An automatic gluing and molding method for preventing glue overflow of a box cover comprises the following steps: S1, feeding: using the parallel material taking robot of the glue coating equipment to pick up the sealing strip and box cover processed in the previous process and transfer them to the top of the workbench; S2, applying hot glue: using the parallel material taking manipulator to transfer the sealing strip and the box cover to the first gluing mechanism, so that one side of the sealing strip and the box cover respectively contacts the two cams of the gluing roller of the first gluing mechanism and moves, and the hot melt glue in the glue storage tank of the first gluing mechanism is evenly applied to one side of the sealing strip and the box cover by the rotation of the cam; S3, applying cold glue: using the parallel material taking manipulator to transfer the sealing strip and the box cover after the hot glue is applied to the second glue applying mechanism, so that one side of the box cover and the sealing strip respectively contacts the two cams of the second glue applying mechanism and moves, and the cold glue in the glue storage tank of the second glue applying mechanism is applied to the hot melt adhesive surface on the sealing strip and the box cover by the rotation of the cam; S4, dynamic adjustment: the second protrusion is made to contact and pass over the first protrusion of the glue storage tank by the reciprocating movement of the parallel material taking manipulator in the X-axis direction, so that the two cams of the first glue coating mechanism and the second glue coating mechanism are arranged tilted relative to the workbench, and the contact angle formed by the cam surface and the sealing strip and the box cover surface is dynamically adjusted by adjusting the moving distance of the parallel manipulator in the X-axis direction, thereby regulating the distribution range and thickness of the cold glue and the hot glue on the sealing strip and the box cover surface; S5, forming: using the first manipulator to transfer the glue-coated sealing strip to above the second accommodation position of the bending device, the second manipulator synchronously transfers the glue-coated box cover to above the first accommodation position of the bending device and below the sealing strip, and using the first manipulator and the second manipulator to drive the sealing strip and the box cover to be pressed down to the limit table synchronously so that the sealing strip is combined and pasted to the inner side of the box cover; using the third lifting cylinder and the bending arm of the bending device to bend the two sides of the combined and pasted sealing strip to form a "U"-shaped structure.

[0016] The present invention provides an anti-overflow box cover gluing device and method thereof, which realizes a segmented gluing process of hot glue and cold glue through the cooperation of a parallel material taking robot, a first gluing mechanism and a second gluing mechanism; through the linkage sliding of the second protrusion of the first robot and the first protrusion of the glue storage tank, the cam of the gluing roller is arranged tilted, and the gluing contact angle and the glue amount distribution range are dynamically adjusted; and combined with a bending device, the automatic bonding and forming of the box cover and the sealing strip are realized.

[0017] The beneficial effects of the present invention are as follows: the segmented gluing method is used to improve the gluing accuracy, avoid glue overflow, and improve the product appearance quality; the distribution requirements of different glue coating thicknesses are achieved by dynamically adjusting the cam inclination angle; the adjustable design of the clamping jaw assembly, the movable setting of the second baffle relative to the first baffle, and the introduction of the distance adjustment mechanism improve the applicability and flexibility of the equipment, and adapt to box covers and sealing strips of various sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the automatic gluing and molding equipment of the present invention; Figure 2 It is a structural schematic diagram of the parallel manipulator of the present invention; Figure 3 It is a structural schematic diagram of the second manipulator of the present invention; Figure 4 It is a structural schematic diagram of the glue coating device of the present invention; Figure 5 It is a partial structural schematic diagram of the gluing mechanism of the present invention; Figure 6 It is a structural schematic diagram of the bending device of the present invention; Figure 7 for Figure 6 Schematic diagram of the enlarged structure of part A.

[0019] Reference numerals include: 100, workbench; 1, glue coating device; 2, parallel material taking manipulator; 3, bending device; 11, first glue coating mechanism; 12, second glue coating mechanism; 13, glue storage tank; 131, first protrusion; 132, mounting seat; 133, sphere; 134, side support frame; 14, glue coating roller; 141, cam; 15, first rotating motor; 16, glue pressing roller; 17, rotating mechanism; 20, frame; 21, first manipulator; 211, first slide; 212, linear drive module; 213, first bracket; 214, suction cup assembly; 215, first lifting cylinder; 2141, suction arm; 22, first Second manipulator; 221, second lifting cylinder; 222, first transverse cylinder; 223, clamping claw assembly; 2231, connecting plate; 2232, second transverse cylinder; 2233, clamping claw; 23, second protrusion; 31, supporting seat; 32, limiting platform; 321, first accommodating position; 33, bending mechanism; 331, bending arm; 3311, bending base; 3312, first baffle; 3313, second baffle; 3314, third transverse cylinder; 3315, second accommodating position; 332, third lifting cylinder; 34, distance adjustment mechanism; 341, screw rod; 342, second rotating motor; 343, slide seat. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0021] See also Figures 1 to 7 As shown, an automatic gluing and molding device for preventing glue overflow of a box cover of the present invention comprises a workbench 100 , a gluing device 1 arranged on the workbench 100 , and a parallel material taking robot 2 arranged in cooperation with the gluing device 1 .

[0022] The gluing device 1 includes a first gluing mechanism 11 and a second gluing mechanism 12 arranged in parallel to each other, which are used to apply hot melt glue and cold glue respectively; the parallel material picking robot 2 includes a first robot 21 and a second robot 22 arranged to reciprocate relative to the workbench 100, and the first robot 21 and the second robot 22 are respectively used to pick up external sealing strips and box covers and transfer them to the first gluing mechanism 11 and the second gluing mechanism 12 in turn for gluing.

[0023] The glue coating mechanism includes a glue storage tank 13 arranged on a workbench 100, a glue coating roller 14 rotatably arranged in the glue storage tank 13, and a first rotary motor 15 connected to the glue coating roller 14 for driving the glue coating roller 14 to rotate. The glue coating roller 14 has a cam 141 arranged on the end surface protruding out of the glue storage tank 13. The cam 141 is used to cooperate with the transfer action of the parallel material taking manipulator 2 to apply the glue in the glue storage tank 13 to the sealing strip and the box cover. In this embodiment, a "U"-shaped scraper is arranged in the glue storage tank 13. The "U"-shaped scraper contacts the two outer arms of the cam 141 to scrape out the excess glue adhered to the surface of the cam 141 to prevent the excess glue from flowing into the box cover and the sealing strip to cause glue overflow. The scraper has two arms, and the two arms are relatively telescopically arranged through a telescopic structure. In actual use, the distance between the two arms can be adjusted according to the box cover and the sealing strip of different specifications, thereby adjusting the thickness of the glue adhered to the surface of the cam 141.

[0024] In this embodiment, the workbench 100 is the basic support component of the equipment, which is covered with a high-strength carbon steel frame and an anti-corrosion coating to ensure the stability and durability of the equipment in a high temperature and humid environment. The workbench 100 is partitioned and installed with a gluing device 1, a gluing roller 16, a parallel material taking manipulator 2 and a bending device 3. The functional modules are compactly arranged, and each component operates independently to reduce mutual interference, facilitate maintenance and replacement, and improve the overall life of the equipment.

[0025] The interior of the glue storage tank 13 of each glue coating mechanism is designed as an arc-shaped transition structure, so that the glue coating roller 14 can evenly adhere to the glue liquid and prevent glue liquid from being wasted; the bottom of the first glue coating mechanism 11 is equipped with a glue liquid constant temperature heater to ensure the fluidity of the hot melt adhesive. The glue storage tank 13 is assembled by splicing multiple metal sheets, and a leak-proof inner tank made of high-temperature resistant hard silicone is installed inside (not shown in the figure), which can be detachably installed inside the sol tank through a card slot or an insert. A heat-insulating cushion layer (such as high-temperature resistant silicone or ceramic fiber pad) is designed between the bottom of the leak-proof inner tank and the bottom of the glue storage tank 13, which not only prevents the hot melt adhesive from being conducted to the glue storage tank 13 but also enhances the secondary protection capability of glue leakage. A slightly inclined surface and a diversion outlet are designed at the bottom of the leak-proof inner tank to centrally guide the residual glue liquid out of the glue storage tank 13 to avoid affecting the performance due to the accumulation of glue at the bottom of the leak-proof inner tank.

[0026] Specifically, the parallel material picking robot 2 also includes a frame 20 arranged on one side of the workbench 100, the first robot 21 includes a first slide 211 arranged on the frame 20 for reciprocating movement along the X-axis direction, a linear drive module 212 connected to the first slide 211 for driving it to reciprocate along the frame 20, a first bracket 213 arranged on the first slide 211, and a suction cup assembly 214 arranged on the first bracket 213 for reciprocating movement along the Z-axis direction, a first lifting cylinder is provided on the first bracket 213, the output end of the first lifting cylinder is connected to the suction cup assembly 214, the first bracket 213 is vertically connected to the bottom end of the first slide 211, and the suction cup assembly 214 is used to absorb or release the external sealing strip.

[0027] Specifically, the second manipulator 22 includes a second lifting cylinder 221 arranged on the first slide 211, a first transverse movement cylinder 222 arranged at the output end of the second lifting cylinder 221, and a clamping claw assembly 223 arranged at the output end of the first transverse movement cylinder 222; the second lifting cylinder 221 is used to drive the cylinder body of the first transverse movement cylinder 222 to reciprocate along the Z-axis direction, the first transverse movement cylinder 222 is used to drive the clamping claw assembly 223 to reciprocate along the Y-axis direction, and the clamping claw assembly 223 is used to clamp or release the external box cover.

[0028] The first manipulator 21 of the parallel manipulator is equipped with a multifunctional suction cup assembly 214, which includes an adsorption arm 2141 that is roughly arranged in a rectangular shape (arranged in parallel with the movement and release of the first slide 211), and the adsorption arm 2141 is provided with a plurality of adsorption holes (not shown in the figure) penetrating therethrough, and one end of the adsorption hole is connected to the vacuum generator to ensure the picking stability of the sealing strip. The clamping claw assembly 223 of the second manipulator 22 includes a connecting plate 2231 connected to the output end of the first transverse cylinder 222, two second transverse cylinders 2232 arranged on the outside of the connecting plate 2231, and two clamping hands 2233 respectively connected to the output ends of the two second transverse cylinders 2232 for clamping or releasing the external box cover, and the clamping hands 2233 are installed with rubber anti-skid pads to improve the grasping accuracy of the box cover and avoid damaging the surface of the box cover. The travel range of the two manipulators is monitored by photoelectric sensors in real time to ensure synchronization. In this embodiment, the glue storage tank 13 is installed on the workbench 100 through the rotating mechanism 17, and can cooperate with the two cams 141 of the glue coating roller 14 to achieve accurate glue coating on the box cover and the sealing strip. The two cams 141 are arranged along the radial direction of the glue coating roller 14, and their movement trajectories match the glue distribution of the glue storage tank 13. The second protrusion 23 is arranged on the suction arm 2141 of the first manipulator 21. The second protrusion 23 is roughly in an isosceles trapezoidal structure. The first protrusion 131 includes a mounting seat 132 installed in a cylindrical shape at one end of the sol tank, and a semicircular or circular sphere 133 arranged above the mounting seat 132 by elastic members. The sphere 133 is used to cooperate with the second protrusion 23 on the suction arm 2141 of the first manipulator 21.

[0029] When in use, during the reciprocating movement of the parallel material-retrieving manipulator 2, the second protrusion 23 (isosceles trapezoidal design) thereon will periodically contact the first protrusion 131 (semicircular rolling ball) on the glue storage tank 13, triggering the linkage rotation of the glue storage tank 13 and the glue coating roller 14. The cam 141 of the glue storage tank 13 and the glue coating roller 14 is arranged tilted relative to the workbench 100, which can better adapt to the different gluing requirements of the box cover and the sealing strip, ensuring uniform and accurate gluing. With the synergistic effect of the two cams 141, the gluing operation of the two different components of the box cover and the sealing strip is realized, reducing the complexity of replacement and adjustment. The tilted design of the glue storage tank 13 optimizes the flow path of the glue, ensures the stability of the contact between the glue coating roller 14 and the target surface, thereby avoiding the phenomenon of missing or over-coating, and improving product quality.

[0030] Specifically, the workbench 100 is rotatably provided with glue pressing rollers 16 equal to the number of the glue coating mechanisms. In the present embodiment, a side support frame 134 is installed on the top of the glue storage tank 13, and the glue pressing rollers 16 are rotatably provided on the side support frame 134. The function of the glue pressing rollers 16 is to fix the box cover in the best position by contacting with the top of the box cover when the second manipulator 22 transfers the box cover, and to assist the glue coating mechanism in completing the precise glue coating operation on the surface of the box cover. The rotation of the glue pressing rollers 16 is realized by the linkage design with the glue coating mechanism. The glue coating action is driven by the cam 141, and appropriate pressure is applied by the glue pressing rollers 16 to ensure that the glue is evenly distributed on the surface of the box cover. The rotation angle, pressure and position of each glue pressing roller 16 can be adjusted to meet the requirements of box covers of different sizes and shapes.

[0031] The linkage design of the glue pressing roller 16 and the glue coating mechanism ensures the stability and position accuracy of the box cover during the glue coating process, avoiding glue coating deviation caused by movement or shaking. At the same time, by applying appropriate pressure, the glue coating roller 14 is in close contact with the surface of the box cover, and the glue can be coated more evenly to ensure the glue coating quality.

[0032] Since the position and pressure of the glue pressing roller 16 are adjustable, the structure can adapt to a variety of box cover sizes and materials, and there is no need to frequently replace equipment components, saving debugging time. In addition, the configuration of multiple glue coating mechanisms and glue pressing rollers 16 allows glue coating operations on multiple box cover components at the same time, greatly improving production efficiency.

[0033] Specifically, a bending device 3 is provided on one side of the workbench 100, including a support seat 31, a limit platform 32 and a bending mechanism 33. The limit platform 32 is used to carry the sealing strip and the box cover after gluing, and provide a stable working platform for subsequent bending operations. The bending mechanism 33 is composed of two bending arms 331 arranged on both sides of the limit platform 32 and two third lifting cylinders 332 connected thereto. After the external sealing strip and the box cover are glued, they are transferred to the limit platform 32 by the parallel material taking manipulator 2. Subsequently, the third lifting cylinder 332 drives the bending arm 331 to rotate synchronously, and the two bending arms 331 gradually move toward the center, bend the two sides of the sealing strip, and form a "U"-shaped structure, so that the sealing strip and the box cover fit tightly, completing the initial forming. The entire action process is driven by mechanical linkage and cylinders, and has high efficiency and reliability.

[0034] The bending device 3 is used in conjunction with the gluing device 1 and the parallel material taking manipulator 2 to form an integrated automated operation process. The cylinder drive mode of the bending mechanism 33 responds quickly and can complete the bending operation in a short time, greatly improving production efficiency.

[0035] By setting a distance adjustment mechanism 34 on the support seat 31, the precise adjustment of the position of the limit platform 32 is achieved. The core components of the distance adjustment mechanism 34 include a screw rod 341, a second rotating motor 342 and two limit platforms 32. The screw rod 341 is designed with two outer spiral parts with opposite spiral directions along its length direction, and the two limit platforms 32 are respectively screwed to the two outer spiral parts of the screw rod 341 through two slides 343 to form a relative linkage structure. The screw rod 341 is slidably matched with the support seat 31 and connected to the second rotating motor 342 at the same time. When the second rotating motor 342 drives the screw rod 341 to rotate, due to the design of opposite spiral directions, the two limit platforms 32 will synchronously approach the center or move away from the outside, thereby realizing the precise adjustment of the distance between the limit platforms 32 to meet the production requirements of sealing strips and box covers of different sizes. The entire distance adjustment process is stable and flexible, and the adjustment can be completed quickly.

[0036] The distance adjustment mechanism 34 drives the screw rod 341 through the motor to achieve synchronous adjustment of the distance between the limit platforms 32, and can adapt to sealing strips and box lids of different specifications. This flexible adjustment method does not require the replacement of hardware components, greatly improves the versatility and production efficiency of the equipment, and is suitable for a variety of production tasks. The distance adjustment mechanism 34 adopts a screw rod 341 with opposite spiral directions to ensure that the two limit platforms 32 always maintain synchronous movement, and the distance adjustment is accurate and stable. In addition, combined with the motor control system, the operator can realize automatic adjustment of the limit platform 32 by inputting specific parameters or preset programs to avoid manual operation errors.

[0037] The solution of the present invention realizes accurate positioning and fixing of the box cover and the sealing strip by respectively setting a first accommodating position 321 and a second accommodating position 3315 on the limiting platform 32 and the bending arm 331. The first accommodating position 321 of the limiting platform 32 is a groove structure, which is specially used to accommodate the tongue piece on the box cover to ensure the stability of the box cover during processing. The bending arm 331 is composed of a bending base 3311, a first baffle 3312, a second baffle 3313 and a third transverse cylinder 3314. The first baffle 3312 is fixedly arranged on the bending base 3311 and is in a cross state with the base. The second baffle 3313 is connected to the bending base 3311 through the third transverse cylinder 3314 and can move parallel to the first baffle 3312. A second accommodating position 3315 is formed between the bending base 3311, the first baffle 3312 and the second baffle 3313, which is specially used to accommodate and fix the sealing strip. By design, the first accommodation position 321 and the second accommodation position 3315 intersect each other and overlap in the working position, so that the box cover and the sealing strip can be accurately aligned. The third transverse cylinder 3314 drives the movement of the second baffle 3313 to adjust the width of the second accommodation position 3315 to adapt to sealing strips of different sizes, thereby improving the flexibility of the equipment.

[0038] The cross-overlap design of the first accommodation position 321 and the second accommodation position 3315 allows the box cover and the sealing strip to be naturally aligned in space, thereby avoiding processing defects caused by alignment errors and ensuring that the sealing strip and the box cover are accurately and firmly bonded. The groove structure of the limit table 32 further enhances the fixing effect of the box cover tongue, ensuring that it is not prone to sliding or shifting during processing. The second baffle 3313 is driven by the third transverse cylinder 3314, and its position is adjustable, so that the width of the second accommodation position 3315 can be flexibly adjusted according to the different sizes of the sealing strip. This structural design simplifies the adjustment process of the equipment, improves the adaptability to workpieces of multiple specifications, and can meet different production needs without frequent replacement of components.

[0039] Specifically, a control method of an automatic gluing and molding device for preventing glue overflow of a box cover of the present invention realizes an automatic gluing and molding process for preventing glue overflow of a box cover through the joint operation of a parallel manipulator, a gluing mechanism and a bending device 3 .

[0040] First, in the feeding step (S1), the parallel material-picking robot 2 picks up the processed sealing strip and box cover from the feeding area of ​​the previous process and transfers them to the top of the workbench 100 to ensure the accurate position of the workpiece. Subsequently, in the process of applying hot glue (S2), the robot feeds the sealing strip and box cover into the first glue coating mechanism 11, and the hot melt glue is evenly applied to the same side surface of the two through the rotation of the two cams 141. Then, in the application of cold glue (S3), the robot transfers the sealing strip and box cover after the hot glue is applied to the second glue coating mechanism 12, and the cold glue is applied through the same cam 141 device, and the cold glue covers the hot glue to enhance the bonding performance. In the stage of applying hot glue and cold glue, a dynamic adjustment (S4) scheme is introduced. Through the movement of the parallel robot along the X-axis direction, the contact angle of the cam 141 is dynamically adjusted to achieve precise control of the glue coating range and thickness to ensure a uniform glue layer. In the forming step (S5), the two manipulators synchronously transfer the sealing strip and the box cover to the bending device 3 respectively, and drive them to be pressed onto the limit table 32; through the linkage of the bending arm 331 and the third lifting cylinder 332, the two sides of the sealing strip are bent to the inner side of the box cover to complete the "U"-shaped pasting forming.

[0041] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An automatic glue coating and molding equipment for preventing glue overflow of box cover, characterized in that: It comprises a workbench (100), a gluing device (1) arranged on the workbench (100), and a parallel material taking robot (2) arranged in cooperation with the gluing device (1); The gluing device (1) comprises at least two gluing mechanisms arranged in parallel, and the parallel material taking manipulator (2) comprises a first manipulator (21) and a second manipulator (22) arranged to reciprocate relative to the workbench (100), the first manipulator (21) and the second manipulator (22) being respectively used to pick up external sealing strips and box covers and transfer them to the gluing mechanism for gluing; The glue coating mechanism comprises a glue storage tank (13) arranged on a workbench (100), a glue coating roller (14) rotatably arranged in the glue storage tank (13), and a first rotary motor (15) connected to the glue coating roller (14) for driving the glue coating roller (14) to rotate. The glue coating roller (14) has a cam (141) arranged on an end surface protruding out of the glue storage tank (13). The cam (141) is used to cooperate with the transfer action of the parallel material taking robot (2) to coat the glue in the glue storage tank (13) onto the sealing strip and the box cover.

2. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 1 is characterized in that: The glue storage tank (13) of the glue coating mechanism is rotatably arranged on the workbench (100), and two cams (141) are provided. The two cams (141) are arranged along the radial direction of the glue coating roller (14) and are respectively used to coat the glue in the glue storage tank (13) on the box cover and the sealing strip; the glue storage tank (13) is provided with a first protrusion (131), and the parallel material taking manipulator (2) is provided with a second protrusion (23). The parallel material taking manipulator (2) reciprocates so that the second protrusion (23) contacts and passes over the first protrusion (131), so that the glue storage tank (13) and the two cams (141) of the glue coating roller (14) are arranged tilted relative to the workbench (100).

3. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 1 or 2, characterized in that: The gluing device (1) comprises a first gluing mechanism (11) and a second gluing mechanism (12); the gluing tank (13) of the first gluing mechanism (11) is used to store hot melt glue, and the gluing tank (13) of the second gluing mechanism (12) is used to store cold glue; the first gluing mechanism (11) and the second gluing mechanism (12) have the same structure; the parallel material taking robot (2) reciprocates relative to the first gluing mechanism (11) and the second gluing mechanism (12) to sequentially complete the gluing of the hot glue and the cold glue on the sealing strip and the box cover.

4. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 1 or 3, characterized in that: At least two glue pressing rollers (16) are rotatably arranged on the workbench (100), the number of the glue pressing rollers (16) being the same as the number of the glue coating mechanisms, and the glue pressing rollers (16) are used to contact the top of the box cover transferred by the second manipulator (22) to cooperate with the glue coating action of the cam (141).

5. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 1 is characterized by: The parallel material-retrieving robot (2) further comprises a frame (20) arranged on one side of the workbench (100); the first robot (21) comprises a first slide (211) arranged on the frame (20) and reciprocating along the X-axis direction, a linear drive module (212) used to drive the first slide (211), a first bracket (213) arranged on the first slide (211), and a first lifting cylinder arranged on the first bracket (213); the output end of the first lifting cylinder is connected to a suction cup assembly (214); the first lifting cylinder is used to drive the suction cup assembly (214) to reciprocate along the Z-axis; the suction cup assembly (214) is used to absorb or release an external sealing strip.

6. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 5 is characterized in that: The second manipulator (22) comprises a second lifting cylinder (221) arranged on the first slide (211), a first transverse cylinder (222) arranged at the output end of the second lifting cylinder (221), and a clamping claw assembly (223) arranged at the output end of the first transverse cylinder (222); the second lifting cylinder (221) is used to drive the first transverse cylinder (222) to move back and forth along the Z-axis direction, the first transverse cylinder (222) is used to drive the clamping claw assembly (223) to move back and forth along the Y-axis direction, and the clamping claw assembly (223) is used to clamp or release the external box cover.

7. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 1 is characterized by: The box also includes a bending device (3), the bending device (3) comprising a support seat (31) arranged on one side of the workbench (100), a limiting platform (32) arranged on the support seat (31) for carrying the sealing strip and the box cover, and a bending mechanism (33) arranged between the support seat (31) and the limiting platform (32); The bending mechanism (33) comprises two bending arms (331) rotatably arranged on both sides of the limiting platform (32) and two third lifting cylinders (332) connected to the two bending arms (331). After being coated with glue by the gluing device (1), the external sealing strip and the box cover are transferred to the limiting platform (32) via the parallel material taking robot (2) for assembly and pasting. The two third lifting cylinders (332) are respectively used to drive the two bending arms (331) to rotate and move closer to each other so as to bend the two sides of the sealing strip into a "U"-shaped structure.

8. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 7 is characterized in that: The support seat (31) is also provided with a distance adjustment mechanism (34), the distance adjustment mechanism (34) comprising a screw rod (341) rotatably arranged on the support seat (31) and a second rotary motor (342) connected to the screw rod (341) for driving the screw rod to rotate, the screw rod (341) having two outer spiral parts with opposite spiral directions, the limit platforms (32) being provided with two, the two limit platforms (32) being respectively threadedly sleeved on the two outer spiral parts and slidably matched with the support seat (31), the second rotary motor (342) being used to drive the screw rod (341) to rotate so that the screw rod (341) and the two limit platforms (32) are linked to move synchronously closer or farther away.

9. The automatic glue coating and molding equipment for preventing glue overflow of box cover according to claim 7 or 8, characterized in that: The limiting platform (32) is recessed with a first accommodation position (321) for accommodating a tongue piece of the box cover, and the bending arm (331) comprises a bending base (3311) rotatably connected to the output end of the third lifting cylinder (332), a first baffle (3312) arranged on the bending base (3311), a second baffle (3313) arranged to reciprocate relative to the first baffle (3312), and a third transverse cylinder (3314) connected to the second baffle (3313); the first baffle (3312) is arranged to reciprocate relative to the bending base (3311), and the second baffle (3313) is arranged to reciprocate relative to the first baffle (3312). The first baffle plate (3311) is cross-arranged, the second baffle plate (3313) and the first baffle plate (3312) are arranged parallel to each other, the bending base (3311), the first baffle plate (3312) and the second baffle plate (3313) form a second accommodating position (3315) for accommodating the sealing strip, the first accommodating position (321) and the second accommodating position (3315) are cross-arranged and overlapped with each other, and the third transverse cylinder (3314) is used to drive the second baffle plate (3313) to approach or move away from the first baffle plate (3312) to adjust the distance between the two.

10. A control method for automatic glue coating and molding equipment for preventing glue overflow of box cover, characterized in that: The following steps are involved: S1, feeding: using the parallel material taking robot (2) of the glue coating equipment to pick up the sealing strip and the box cover processed in the previous process and transfer them to the top of the workbench (100); S2, applying hot glue: using the parallel material taking manipulator (2) to transfer the sealing strip and the box cover to the first glue coating mechanism (11), so that one side of the sealing strip and the box cover respectively contacts two cams (141) of the glue coating roller (14) of the first glue coating mechanism (11) and moves, and the hot melt glue in the glue storage tank (13) of the first glue coating mechanism (11) is evenly applied to one side of the sealing strip and the box cover by the rotation of the cam (141); S3, applying cold glue: using the parallel material taking manipulator (2) to transfer the sealing strip and the box cover after being coated with hot glue to the second glue coating mechanism (12), so that one side of the box cover and the sealing strip respectively contacts two cams (141) of the second glue coating mechanism (12) and moves, and using the rotation of the cams (141) to apply the cold glue in the glue storage tank (13) of the second glue coating mechanism (12) to the hot melt glue surface on the sealing strip and the box cover; S4, dynamic adjustment: using the parallel material taking manipulator (2) to reciprocate in the X-axis direction so that the second protrusion (23) contacts and passes over the first protrusion (131) of the glue storage tank (13), so that the two cams (141) of the first glue coating mechanism (11) and the second glue coating mechanism (12) are arranged tilted relative to the workbench (100), and the contact angle formed between the surface of the cam (141) and the surface of the sealing strip and the box cover is dynamically adjusted by adjusting the moving distance of the parallel manipulator along the X-axis direction, thereby regulating the distribution range and thickness of the cold glue and the hot glue on the surface of the sealing strip and the box cover; S5, molding: using the first machine The manipulator (21) moves the glued sealing strip to above the second accommodation position (3315) of the bending device (3), and the second manipulator (22) simultaneously moves the glued box cover to above the first accommodation position (321) of the bending device (3) and below the sealing strip. The first manipulator (21) and the second manipulator (22) drive the sealing strip and the box cover to be simultaneously pressed down to the limit table (32) so that the sealing strip is combined and pasted to the inner side of the box cover; and the third lifting cylinder (332) and the bending arm (331) of the bending device (3) are used to bend the two sides of the combined and pasted sealing strip to form a "U"-shaped structure.

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