An automatic dispensing and attaching all-in-one machine and a dispensing and attaching method thereof

Abstract

The application discloses an automatic dispensing and attaching all-in-one machine, which comprises a rack, a conveying device arranged on the rack, a base material feeding station, a dispensing station, a joint surface layer feeding station, a pressure maintaining station and a discharging station which are sequentially arranged on the conveying device along a material conveying direction, a base material feeding mechanism arranged on one side of the base material feeding station, a dispensing mechanism arranged above the dispensing station, a joint surface layer feeding mechanism arranged on one side of the joint surface layer feeding station, and a pressure maintaining mechanism arranged above the pressure maintaining station on the conveying device. The application can automatically complete the whole process of the automatic operation of the joint base material feeding, accurate dispensing, joint surface layer attaching, flexible pressure maintaining, shaping and product discharging, solves the problems of low processing efficiency, poor alignment accuracy, easy hollowing and edge lifting of the finished product and easy paper surface bruising in the traditional manual processing, effectively improves the production efficiency and the finished product yield of the joint attaching processing, and is suitable for batch and large-scale production.

Description

Technical Field

[0001] This invention relates to the field of couplet production equipment technology, and in particular to an automatic dispensing and attaching machine and its dispensing and attaching method. Background Technology

[0002] As an essential folk custom product for the Spring Festival, Spring Festival couplets have a huge market demand. At present, the bonding of the bottom and top couplets is mostly completed by manual assembly lines. The traditional processing process is as follows: workers manually sort the couplet base materials, manually apply glue with a hand glue gun, manually align the couplet surface, manually press and hold the pressure to shape, and finally manually collect and transport the materials. The whole process is highly dependent on manual operation. A processing line needs to be equipped with multiple operators to cooperate. Not only is the labor cost high, but it also requires a large area of ​​factory space to store unprocessed and semi-finished products, resulting in low space utilization.

[0003] Patent search revealed that application number 2025103483488, patent title: "Integrated Dispensing, Bonding, and Pressure Holding Machine," discloses a cabinet with a worktable and a protective cover. A controller is located on the side of the cabinet. The worktable includes a feeding station, a dispensing station, a conveying station, and a pressure holding station. A feeding conveyor is mounted on the feeding station, connected via a lifting mechanism to a material-collecting mechanism. A detection camera is mounted on the worktable, and a moving mechanism is mounted on the conveying station. The moving mechanism is connected via a sliding mechanism... The moving base is connected to a fixture, and a dispensing mechanism is set on the dispensing station. A pressure holding mechanism is set on the pressure holding station. This integrated machine is designed for small hard plastic parts for automobiles and is equipped with a fixed standard fixture material tray, which can position the regular hard workpieces. Couplets are irregular long strips of flexible Xuan paper and coated paper, which are prone to wrinkling and deformation. The fixed fixture cannot complete the neat stacking, separation and precise positioning and gripping of couplets. During material picking, problems such as paper suction wrinkles, multiple sheets sticking together and one-sided offset and falling are very likely to occur. This solution is not suitable for the automated bonding production of couplets and it is difficult to improve the production efficiency of couplet processing.

[0004] To address this, an automatic dispensing and bonding machine and its dispensing and bonding method were designed. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems by designing an automatic dispensing and bonding machine and its dispensing and bonding method.

[0006] The technical solution of the present invention to achieve the above objectives is an automatic dispensing and bonding machine, comprising a frame, The conveying device is divided into a substrate feeding station, an adhesive dispensing station, a top layer feeding station, a pressure holding station, and a discharge station along the material conveying direction. A substrate feeding mechanism is located on one side of the conveying device and is set corresponding to the substrate feeding station; The dispensing mechanism is located above the conveying device corresponding to the dispensing station; A surface layer feeding mechanism is located on one side of the conveying device and is set corresponding to the surface layer feeding station; A pressure-holding mechanism is located above the conveying device corresponding to the pressure-holding station.

[0007] As a further description of this technical solution, the conveying device includes a conveying roller mounted on a frame, an annular conveyor belt wound around the outside of the conveying roller, and a conveying power component for driving the conveying roller to rotate; a negative pressure fan is provided inside the frame, and vacuum adsorption holes are evenly distributed on the surface of the conveyor belt.

[0008] As a further description of this technical solution, the conveying device is provided with a hollow negative pressure cavity, which is located inside the annular conveyor belt. The negative pressure fan is connected to the negative pressure cavity through a negative pressure pipe, and the vacuum adsorption hole is connected to the internal space of the negative pressure cavity.

[0009] As a further description of this technical solution, the substrate feeding mechanism and the surface layer feeding mechanism have the same structure, both including a mounting frame, a lifting drive assembly mounted on the mounting frame, and a transverse transfer cylinder mounted on the mounting frame. A transverse guide rail is provided on one side of the transverse transfer cylinder on the mounting frame, a transverse slider is provided on the transverse guide rail, a detachable positioning plate is provided on the transverse slider, a positioning area formed by several sets of positioning pins is provided on the detachable positioning plate, and an auxiliary groove is provided on the detachable positioning plate. The lifting drive assembly includes a lifting drive cylinder mounted on the mounting frame, and a lifting plate is provided at the output end of the lifting drive cylinder.

[0010] As a further description of this technical solution, a top mounting beam is provided above the mounting platform, a longitudinal conveying module is provided on the top mounting beam, a lifting control module is provided at the output end of the longitudinal conveying module, a lifting mounting frame is provided at the output end of the lifting control module, a long frame is provided on the lifting mounting frame, and several sets of suction cups are provided on the long frame.

[0011] As a further description of this technical solution, the dispensing mechanism includes a top bracket disposed above the dispensing station. Several support frames are mounted on the top bracket, and a lateral movement guide assembly is installed on each support frame. A first moving component and a second moving component are slidably mounted on the lateral movement guide assembly, and a connecting component is assembled between the first moving component and the second moving component. A lateral drive assembly is disposed on one side of the support frame on the top bracket, and the output end of the lateral drive assembly is connected to the first moving component. A first lifting dispensing module is mounted on the first moving component, and a second lifting dispensing module is mounted on the second moving component. Both the first and second lifting dispensing modules are equipped with dispensing components.

[0012] As a further description of this technical solution, two sets of movable sliders are slidably mounted on the lateral movement guide assembly, and the two sets of movable sliders are respectively fixed to the first movable plate of the first moving assembly and the second movable plate of the second moving assembly; the connecting assembly is a connecting rod, and the two ends of the connecting rod are respectively connected to the first movable plate and the second movable plate; the lateral drive assembly is a lateral drive cylinder installed on the top bracket, and the output end of the lateral drive cylinder is fixedly connected to the first movable plate.

[0013] As a further description of this technical solution, the first lifting dispensing module includes a first lifting control cylinder mounted on a first movable plate, the output end of the first lifting control cylinder being connected to the first lifting plate, and multiple dispensing assemblies mounted on the first lifting plate; the second lifting dispensing module includes a second lifting control cylinder mounted on a second movable plate, the output end of the second lifting control cylinder being connected to the second lifting plate, the second lifting plate being provided with several bottom mounting brackets, the bottom mounting brackets being equipped with auxiliary guide rails and lateral fine-tuning cylinders, the auxiliary guide rails being slidably mounted with auxiliary sliders, the auxiliary sliders being provided with movable frames, the movable frames being connected to the output end of the lateral fine-tuning cylinders, and the movable frames being provided with dispensing assemblies; the dispensing assembly includes a fixed frame, a dispensing spray gun, a dispensing control solenoid valve, and an adhesive inlet pipe, the dispensing spray gun being fixed on the fixed frame, the top of the dispensing spray gun being connected to the dispensing control solenoid valve, and the side of the dispensing spray gun being provided with an adhesive inlet pipe.

[0014] As a further description of this technical solution, the pressure-holding mechanism includes a pressure-holding mounting frame disposed on the conveying device above the pressure-holding station. The pressure-holding mounting frame is equipped with several pressure-holding control cylinders, and the output end of each pressure-holding control cylinder is provided with a floating connecting seat. A pressure-holding plate is bolted to the bottom of the floating connecting seat, and the bolts are slidably connected to the floating connecting seat. A vertical mounting column is disposed on the pressure-holding plate, penetrating upwards through the floating connecting seat and slidingly engaging with it. A buffer spring is sleeved between the floating connecting seat and the pressure-holding plate, and outside the vertical mounting column. The upper end of the buffer spring abuts against the lower end face of the floating connecting seat, and the lower end abuts against the upper end face of the pressure-holding plate, ensuring that the pressure-holding plate always maintains an elastically floating and pressed state. A guide sleeve is disposed on the floating connecting seat, and a guide post is disposed inside the guide sleeve, with the bottom end of the guide post connected to the pressure-holding plate.

[0015] An automatic dispensing and bonding machine has a dispensing and bonding method, comprising the following steps: S1. The equipment is preheated and the negative pressure system is turned on to form a stable negative pressure adsorption force on the surface of the conveyor belt. At the same time, the substrate feeding mechanism, the connecting layer feeding mechanism, the dispensing mechanism and the pressure holding mechanism are reset to the initial zero position to complete the equipment standby preparation. S2. The substrate feeding mechanism automatically completes the lifting and replenishing of the couplet substrate, the suction cup picking up the material and the lateral transfer and unloading of the material. Single couplet substrates are placed on the conveyor belt in sequence, and multiple sets of couplet substrates are arranged in an array at intervals along the conveying direction and are firmly positioned by negative pressure adsorption. S3. Based on the specifications of the couplets to be processed and the requirements for glue dot spacing, the horizontal position of the first moving component and the second moving component is adjusted in advance by the horizontal drive component, and the horizontal fine-tuning cylinder on the second lifting glue dispensing module is used to precisely fine-tune the horizontal spacing of each group of glue dispensing components to adapt to the glue dispensing position requirements of couplets of different widths. S4. The arrayed couplet substrates are conveyed at a constant speed to the dispensing station by the conveyor belt. The first and second lifting control cylinders extend synchronously, driving the corresponding dispensing components to descend and approach the surface of the couplet substrates. The dispensing control solenoid valve opens, and the glue is delivered to the dispensing spray gun through the glue inlet pipe to achieve glue application. The couplet substrates first pass through the first lifting dispensing module to complete the dispensing of the long side areas on both sides of the couplet. Then, they are continuously fed by the conveyor belt to the bottom of the second lifting dispensing module to complete the continuous dispensing of the middle area of ​​the couplet. This achieves segmented, continuous, and leak-free batch array dispensing of long couplets. S5. The couplet substrate that has completed the dispensing operation is conveyed to the couplet surface layer feeding station by the conveyor belt. The couplet surface layer feeding mechanism completes the lifting and replenishing of the decorative couplet surface layer, suction cup picking, lateral transfer and precise alignment of the material, so that the decorative couplet surface layer is flat and adhered to the dispensing area surface of the couplet substrate, realizing the initial composite bonding of the substrate and the couplet surface layer. S6. The semi-finished couplets that have been initially bonded are conveyed to the pressure holding station. The pressure holding control cylinder drives the floating connecting seat to move downward, causing the pressure holding plate to press against the surface of the couplet layer. Relying on the sliding fit between the bolts and the floating connecting seat, the sliding guide fit of the vertical mounting column and the buffer spring elastic floating structure, combined with the double guiding and limiting effect of the guide sleeve and the guide column, the pressure holding plate adapts to the flatness and thickness error of the substrate. S7. After the preset pressure holding time is reached, the pressure holding mechanism moves upward to reset, and the finished couplets are conveyed to the unloading station by the conveyor belt to complete the automatic glue application process.

[0016] Its beneficial effects are as follows: 1. This equipment realizes the fully automated continuous operation of the entire process of feeding the couplet substrate, applying glue at fixed points, bonding the couplet surface layer, flexibly holding pressure and shaping, and unloading the finished product. The various workstations of the whole machine are connected and connected. There is no need for manual transfer, manual alignment and manual pressing and shaping throughout the process, which greatly reduces the degree of manual participation and labor intensity, saves labor production costs, effectively solves the drawbacks of low efficiency and limited capacity of traditional manual processing, and greatly improves the automation level and overall processing capacity of couplet mass production. It can fully adapt to the needs of large-scale and standardized assembly line production of couplets.

[0017] 2. This equipment is equipped with a conveyor device with negative pressure adsorption function. Relying on the vacuum adsorption holes evenly distributed on the surface of the conveyor belt and the negative pressure chamber inside the frame, a continuous and stable negative pressure adsorption force is formed, which can firmly adsorb and position the couplet substrate placed on the surface of the conveyor belt throughout the entire process. It effectively avoids problems such as displacement, slippage, and warping of the substrate during the entire process of conveying, gluing, bonding, and pressure holding. It ensures that the gluing position, glue uniformity, and bonding alignment accuracy of each batch of couplets are highly consistent, completely solving the quality defects such as alignment deviation, uneven glue dispensing, and bonding misalignment that are prone to occur in traditional manual and simple equipment processing, and significantly improving the processing consistency and appearance flatness of the finished couplets.

[0018] 3. This equipment adopts a dual-group adjustable lifting dispensing module structure, which can realize multi-point synchronous dispensing, greatly improving the dispensing efficiency. At the same time, the second lifting dispensing module is equipped with an independent lateral fine-tuning structure, which can flexibly fine-tune the lateral installation position of a single dispensing component according to couplet products with different widths and different pattern layouts, accurately adapting to the dispensing processing needs of multiple specifications of couplets. This breaks through the limitations of traditional dispensing equipment with single processing specifications and poor adaptability, effectively broadening the scope of equipment application and reducing equipment purchase and replacement costs.

[0019] 4. This equipment employs a unique floating flexible pressure-holding mechanism. Utilizing a sliding bolt fit, a vertical mounting column sliding guide structure, and a buffer spring, it achieves elastic floating pressure. Simultaneously, the guide sleeve and guide column form a double-guided limiting structure, ensuring smooth, non-deviation-free, and uniform pressure distribution during the pressure-holding platen's downward movement. During operation, it can adapt to slight unevenness on the paper surface and thickness errors in the substrate, achieving flexible and uniform pressure application. Compared to traditional rigid pressing structures, it effectively eliminates defects such as paper surface damage, indentations, and breakage. Furthermore, it fully removes air from the gap between the substrate and the bonding layer, completely avoiding defects such as hollow areas, curling edges, and glue separation in the finished product, significantly improving bonding strength, finished product yield, and product lifespan. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the distribution structure of each workstation in this invention; Figure 3 This is a schematic diagram of the substrate feeding mechanism of the present invention; Figure 4 This is a schematic diagram of the installation structure of the longitudinal conveying module of the present invention; Figure 5 This is a schematic diagram of the detachable positioning carrier plate of the present invention; Figure 6 This is a schematic diagram of the installation structure of the lifting plate and the lifting drive cylinder of the present invention; Figure 7 This is a schematic diagram of the conveying device of the present invention; Figure 8 This is a schematic diagram of the dispensing mechanism of the present invention; Figure 9 This is a schematic diagram of the dispensing mechanism of the present invention from another perspective; Figure 10 This is a schematic diagram of the dispensing assembly of the present invention; Figure 11 This is a schematic diagram of the pressure-holding mechanism of the present invention.

[0021] In the diagram, 1. Frame; 2. Conveying device; 3. Substrate loading station; 4. Dispensing station; 5. Top layer loading station; 6. Pressure holding station; 7. Unloading station; 8. Substrate loading mechanism; 9. Dispensing mechanism; 10. Top layer loading mechanism; 11. Pressure holding mechanism; 12. Conveying roller; 13. Circular conveyor belt; 14. Conveying power assembly; 15. Negative pressure fan; 16. Vacuum adsorption hole; 17. Mounting platform; 18. Lifting drive assembly; 9. Lateral transfer cylinder; 20. Lateral guide rail; 21. Lateral slider; 22. Detachable positioning carrier plate; 23. Positioning pin; 24. Positioning area; 25. Auxiliary groove; 26. Lifting drive cylinder; 27. Lifting plate; 28. Top mounting beam; 29. ​​Longitudinal transport module; 30. Lifting control module; 31. Lifting mounting frame; 32. Long frame; 33. Suction cup; 34. Top bracket; 35. Support frame; 36. Lateral movement guide assembly; 37. First moving assembly; 38. Second moving assembly; 39. Connecting assembly; 40. Lateral drive assembly; 41. First lifting dispensing module; 42. Second lifting dispensing module; 43. Dispensing assembly; 44. Moving slider; 45. First moving plate; 46. Second moving plate; 47. Connecting rod; 48. Lateral drive cylinder; 49. First lifting control cylinder; 50. First lifting plate; 51. Second lifting control cylinder; 52. Second... 53. Lifting plate; 54. Bottom mounting bracket; 55. Auxiliary guide rail; 56. Horizontal fine-tuning cylinder; 57. Auxiliary slider; 58. Moving frame; 59. Fixed frame; 60. Dispensing spray gun; 61. Dispensing control solenoid valve; 62. Glue inlet pipe; 63. Pressure holding mounting bracket; 64. Pressure holding control cylinder; 65. Floating connecting seat; 66. Bolt; 67. Pressure holding plate; 68. Vertical mounting column; 69. Buffer spring; 70. Guide sleeve; 81. Guide column. Detailed Implementation

[0022] First, let me explain the design intent of this invention. As a traditional folk product for the Spring Festival, Spring Festival couplets have a huge market demand. Currently, the bonding of the bottom and top layers of couplets is mostly done manually on an assembly line, relying on manual sorting, manual gluing, manual alignment and pressing, and manual transfer and unloading. This is labor-intensive, occupies a large factory area, and has low space utilization. According to patent search, the existing patent application number 2025103483488, entitled "Integrated Gluing, Bonding and Pressure Holding Machine", discloses an integrated processing equipment that integrates feeding, gluing, conveying and pressure holding. However, its structure is designed for small hard plastic parts for automobiles, and with fixed standard fixtures, it can only process regular hard workpieces. Couplets are flexible strips of paper material that are easy to wrinkle and deform. This equipment cannot achieve neat stacking, material sorting and precise gripping of couplets. During operation, problems such as paper wrinkling, multiple sheets sticking together, and material deviation and falling are easy to occur. It cannot be adapted to the automated bonding process of couplets and cannot effectively improve the production efficiency of couplets. Therefore, this invention designs an automatic gluing and bonding machine and its gluing and bonding method.

[0023] The specific embodiments of the present invention are further described in detail in conjunction with the overall structure of the equipment, such as... Figures 1-11 As shown, this equipment specifically includes a frame 1 and a conveying device 2 mounted on the frame 1. The conveying device 2 is divided into a substrate feeding station 3, an adhesive dispensing station 4, a bonding layer feeding station 5, a pressure holding station 6, and a unloading station 7 along the material conveying direction. Each station is connected and cooperated in sequence to realize an integrated automated processing flow of automatic feeding of the bonding substrate, precise adhesive dispensing, automatic feeding and bonding of the bonding layer, flexible pressure holding and shaping, and automatic unloading. This effectively replaces traditional manual operation and improves the overall efficiency and product molding quality of the bonding process.

[0024] A substrate feeding mechanism 8 is set up on one side of the equipment frame 1 corresponding to the substrate feeding station 3, and a joint surface layer feeding mechanism 10 is set up on the joint surface layer feeding station 5. At the same time, a dispensing mechanism 9 for precise glue application is set up above the dispensing station 4 of the conveying device 2, and a pressure holding mechanism 11 for bonding and shaping is set up above the pressure holding station 6. All mechanisms work together to complete the automated continuous processing operation of the joint.

[0025] Among them, the conveying device 2, as the core structure of the whole machine material conveying, mainly consists of a conveying roller 12 installed on the frame 1, an annular conveyor belt 13 wrapped around the outside of the conveying roller 12, and a conveying power component 14 that drives the conveying roller 12 to rotate. The conveying power component 14 drives the conveying roller 12 to rotate, which in turn drives the annular conveyor belt 13 to rotate in a cycle, so as to realize the continuous and stable conveying of materials.

[0026] The frame 1 is equipped with a hollow negative pressure chamber and a negative pressure fan 15. The negative pressure fan 15 is connected to the hollow negative pressure chamber through a negative pressure pipe. Several vacuum adsorption holes 16 are evenly opened on the surface of the conveyor belt. All vacuum adsorption holes 16 are connected to the inside of the hollow negative pressure chamber. When the equipment is working, the negative pressure fan 15 continuously draws air from the inside of the negative pressure chamber, so that a stable negative pressure adsorption force is formed on the surface of the conveyor belt. This can firmly adsorb and position the substrate placed on the surface of the conveyor belt, effectively preventing the substrate from shifting or warping during the conveying, gluing, bonding, and pressure holding processes, and ensuring the processing accuracy of each process.

[0027] The conveying device 2 has a substrate feeding mechanism 8 on one side of the substrate feeding station 3 and a surface layer feeding mechanism 10 on one side of the conveying device 2 on the other side of the surface layer feeding station 5. The substrate feeding mechanism 8 and the surface layer feeding mechanism 10 adopt the same structural design and are used for automatic feeding of the substrate and decorative surface layer, respectively. Specifically, each includes a mounting frame 17, a lifting drive assembly 18, a transverse transfer cylinder 19, a transverse guide rail 20, a transverse slider 21, a detachable positioning carrier plate 22, and a longitudinal material handling and picking structure. The lifting drive assembly 18 adopts a lifting drive cylinder 26 installed on the mounting frame 17. The output end of the lifting drive cylinder 26 is fixedly connected to the lifting plate 27 to carry the stacked materials and realize the continuous lifting and replenishment of materials, ensuring the consistency of the picking height. A transverse guide rail 20 is fixedly installed on the mounting frame 17 on one side of the transverse transfer cylinder 19. A transverse slider 21 is slidably mounted on the transverse guide rail 20. The transverse transfer cylinder 19 drives the transverse slider 21 to slide smoothly along the transverse guide rail 20. A detachable positioning plate 22 is detachably installed on the transverse slider 21. A material positioning area 24 is formed by multiple positioning pins 23 on the detachable positioning plate 22, which can accurately limit the stacked materials and prevent the materials from shifting. At the same time, an auxiliary groove 25 is opened at the bottom of the detachable positioning plate 22, which makes it easy for the lifting plate 27 to pass through the auxiliary groove 25 to lift the materials. A top mounting beam 28 is provided above the mounting platform 17. A longitudinal conveying module 29 is mounted on the top mounting beam 28. A lifting control module 30 is mounted on the output end of the longitudinal conveying module 29. The output end of the lifting control module 30 is fixedly connected to a lifting mounting frame 31. A long frame 32 is mounted on the lifting mounting frame 31. Multiple sets of suction cups 33 are evenly arranged on the long frame 32. Through the coordinated action of the longitudinal conveying module 29 and the lifting control module 30, the precise picking up, transfer and unloading of materials are realized, and the automated feeding process is completed.

[0028] A dispensing mechanism 9 is provided above the dispensing station 4 on the conveying device 2. The dispensing mechanism 9 is mounted on a top support 34 above the dispensing station 4. The top support 34 is fixed to the top of the frame 1. Several support frames 35 are mounted on the top support 34. A transverse movement guide assembly 36 is installed on the support frames 35. Two sets of moving sliders 44 are slidably mounted on the transverse movement guide assembly 36. The first moving plate 45 of the first moving assembly 37 and the second moving plate 46 of the second moving assembly 38 are respectively installed on the two sets of moving sliders 44. The first moving plate 45 and the second moving plate 46 are connected by a connecting rod 47 to form a connecting assembly 39, so that the two sets of moving plates can move laterally synchronously.

[0029] The top bracket 34 is equipped with a transverse drive cylinder 48 as a transverse drive assembly 40 on one side of the support frame 35. The output end of the transverse drive cylinder 48 is fixedly connected to the first moving plate 45. Through the extension and retraction of the transverse drive cylinder 48, the first moving plate 45 and the second moving plate 46 are simultaneously driven to slide laterally along the transverse movement guide assembly 36, thereby realizing the overall adjustment of the dispensing position.

[0030] The first moving plate 45 is equipped with a first lifting control cylinder 49 to form a first lifting dispensing module 41. The output end of the first lifting control cylinder 49 is connected to the first lifting plate 50. Multiple dispensing components 43 are installed on the first lifting plate 50, which can realize multi-station synchronous dispensing operation. The second moving plate 46 is equipped with a second lifting control cylinder 51 to form a second lifting dispensing module 42. The output end of the second lifting control cylinder 51 is connected to the second lifting plate 52. Several bottom mounting brackets 53 are evenly arranged on the second lifting plate 52. Each bottom mounting bracket 53 is equipped with an auxiliary guide rail 54 and a horizontal fine-tuning cylinder 55. An auxiliary slider 56 is slidably mounted on the auxiliary guide rail 54. A moving frame 57 is fixedly mounted on the auxiliary slider 56. Dispensing components 43 are set on the moving frame 57. The moving frame 57 is fixedly connected to the output end of the horizontal fine-tuning cylinder 55. The horizontal position of a single dispensing component 43 can be adjusted individually by the horizontal fine-tuning cylinder 55 to adapt to the dispensing spacing requirements of different specifications of couplets.

[0031] The dispensing assembly 43 of this equipment uniformly includes a fixing frame 58, a dispensing spray gun 59, a dispensing control solenoid valve 60, and an adhesive inlet pipe 61. The dispensing spray gun 59 is stably mounted in the corresponding installation position through the fixing frame 58. The top of the dispensing spray gun 59 is connected to the dispensing control solenoid valve 60 for precise control of dispensing start and stop. The side of the dispensing spray gun 59 is connected to the adhesive inlet pipe 61, which is connected to an external adhesive supply device to achieve stable delivery and precise application of adhesive.

[0032] The pressure-holding mechanism 11 is mounted above the pressure-holding station 6 of the conveying device 2. Specifically, it includes a pressure-holding mounting frame 62 fixed to the frame 1. Several pressure-holding control cylinders 63 are mounted on the pressure-holding mounting frame 62. The output end of the pressure-holding control cylinders 63 is fixedly connected to a floating connecting seat 64. A pressure-holding plate 66 is mounted below the floating connecting seat 64 by bolts 65. The bolts 65 and the floating connecting seat 64 are in a sliding connection fit, providing a basic stroke for the floating movement of the pressure-holding plate 66. A vertical mounting column 67 is fixedly installed on the pressure-holding plate 66. The vertical mounting column 67 passes through the floating connecting seat 64 and forms a sliding fit with the floating connecting seat 64. A buffer spring 68 is sleeved between the floating connecting seat 64 and the pressure-holding plate 66, on the outside of the vertical mounting column 67. The upper end of the buffer spring 68 abuts against the lower end face of the floating connecting seat 64, and the lower end abuts against the upper end face of the pressure-holding plate 66. Under normal conditions, the elastic support of the buffer spring 68 keeps the pressure-holding plate 66 in an elastic floating and pressing state. Meanwhile, a guide sleeve 69 is fixedly embedded on the floating connecting seat 64, and a guide post 70 slides through the guide sleeve 69. The bottom end of the guide post 70 is fixedly connected to the pressure holding plate 66, forming a double guide structure in conjunction with the vertical mounting post 67, effectively ensuring the stability and coaxiality of the pressure holding plate 66 during its lifting and floating process. In actual operation, the couplet material that has completed the dispensing and bonding of the couplet surface is conveyed to the pressure holding station 6 by the conveyor belt. The pressure holding control cylinder 63 drives the floating connecting seat 64 to move downward as a whole, causing the pressure holding plate 66 to bond with the couplet surface. The elastic force of the buffer spring 68 is used to achieve flexible and uniform pressure, which can adapt to the flatness of the couplet substrate surface and the thickness deviation of the material, avoiding problems such as paper damage, bonding voids, and edge curling caused by rigid extrusion. After the pressure holding is completed, the pressure holding control cylinder 63 moves upward to reset, and the shaped finished material is conveyed to the unloading station 7 by the conveyor belt to complete the unloading. The whole process is automated, and the processing stability and finished product yield are greatly improved.

[0033] The specific structure of the invention has been described in detail above. The working principle of the invention will be explained below: After the entire automatic dispensing and attaching machine is powered on and the air supply and negative pressure systems are started normally, the machine enters an automated continuous operation state. The entire process is sequentially connected and cyclically run along the workstation sequence of the conveyor device 2. In the initial standby state, the negative pressure fan 15 of the conveyor device 2 operates continuously and constantly, causing the vacuum adsorption holes 16 on the surface of the conveyor belt to continuously generate a stable negative pressure adsorption force. At the same time, the substrate feeding mechanism 8, the surface layer feeding mechanism 10, the dispensing mechanism 9, and the pressure holding mechanism 11 are all reset to their initial zero positions, preparing for continuous automated production.

[0034] When the equipment is in operation, the substrate feeding mechanism 8 first performs automatic substrate feeding. The lifting drive cylinder 26 continuously lifts and presses the stacked substrates, ensuring that the top substrate maintains a constant picking height and guaranteeing the stability of each picking. The longitudinal transport module 29 works in conjunction with the lifting control module 30 to drive the suction cup 33 assembly downward to accurately pick up a single substrate, and then completes the lateral transfer, moving the substrate to above the substrate feeding station 3 and releasing it smoothly. After the substrate falls onto the conveyor belt, it is firmly adsorbed and positioned under negative pressure adsorption, effectively avoiding problems such as substrate offset, slippage, and warping during subsequent conveying and processing, ensuring the stability of the processing benchmark.

[0035] Several long strips of couplets to be glued are arranged in a row on the conveying device 2, which continuously transports the couplet substrates. The couplet substrates are first transported to the bottom of the first lifting glue dispensing module 41 to complete the glue dispensing operation on the long side areas of both sides of the couplet. The conveying device 2 continues to transport the couplet substrates and then transports the couplets to the bottom of the second lifting glue dispensing module 42, where glue is simultaneously applied to the middle area of ​​the couplet substrates. Before the glue dispensing operation, the horizontal fine-tuning cylinder 55 on the second lifting glue dispensing module 42 precisely fine-tunes the horizontal spacing of each group of glue dispensing components 43 to adapt to the glue dispensing position requirements of couplets of different widths.

[0036] During the dispensing process, the horizontal drive cylinder 48 is activated, which drives the first moving plate 45 and the second moving plate 46 to move horizontally to the area above the couplet to be dispensed; then the first lifting control cylinder 49 and the second lifting control cylinder 51 extend, driving the dispensing assembly 43 to descend and adhere to the surface of the couplet substrate to be dispensed; then the dispensing control solenoid valve 60 is opened, and hot melt adhesive is sent into the dispensing spray gun 59 through the glue inlet pipe 61 to complete multi-point synchronous glue application.

[0037] After the adhesive dispensing process is completed, the substrate of the couplet is conveyed to the couplet surface layer feeding station 5 by the conveyor belt. The couplet surface layer feeding mechanism 10 adopts the same material picking, transfer and feeding logic as the substrate feeding mechanism 8. It automatically completes the stacking and lifting of the decorative couplet surface layer, suction cup 33 picking up, precise transfer and alignment feeding, so that the decorative couplet surface layer accurately covers and adheres to the adhesive area of ​​the substrate, realizing the initial bonding and composite of the substrate and the couplet surface layer, and providing the basic conditions for subsequent pressure holding and shaping.

[0038] After initial bonding, the semi-finished couplets are conveyed to the pressure holding station 6 via a conveyor belt, entering the flexible pressure holding and shaping process. When the pressure holding mechanism 11 is working, the pressure holding control cylinder 63 drives the floating connecting seat 64 to move downwards as a whole, causing the pressure holding plate 66 to be smoothly pressed onto the surface of the couplet layer. During the operation, the sliding fit structure between the bolt 65 and the floating connecting seat 64, and the sliding fit structure between the vertical mounting column 67 and the floating connecting seat 64 cooperate with each other, along with the buffer spring 68 sleeved on the outside of the vertical mounting column 67, so that the pressure holding plate 66 has good elastic floating margin and self-adaptive pressing effect; at the same time, the guide sleeve 69 on the floating connecting seat 64 and the guide column 70 form a double guide and limit structure to ensure that the pressure holding plate 66 is pressed down smoothly, without deviation or jamming. The equipment relies on the uniform and flexible pressure provided by the buffer spring 68 to fully adhere and compact the substrate and the surface layer of the joint, effectively eliminating forming defects such as bonding gaps, air bubbles, and curling edges. At the same time, it can adapt to the flatness of the substrate surface and the thickness error of the board, completely avoiding the paper surface damage and indentation problems that are easy to occur in traditional rigid extrusion structures.

[0039] After the preset pressure holding time ends, the pressure holding control cylinder 63 drives the floating connecting seat 64 and the pressure holding plate 66 to move upward and reset as a whole. The finished couplets, which have completed the pressure holding and shaping, continue to be conveyed to the end unloading station 7 by the conveyor belt. Operators can collect and sort the finished materials at the unloading station 7. This completes the entire process of dispensing and attaching adhesive for a single couplet. The equipment continuously repeats the above process, realizing the batch, continuous, and automated dispensing, attaching, and shaping production of couplets. The processes at each station are tightly and orderly connected, requiring no frequent manual intervention, which greatly improves production efficiency and the overall product molding quality.

[0040] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An automatic dispensing and bonding machine, characterized in that, Including rack (1), The conveying device (2) is divided into a substrate loading station (3), an adhesive dispensing station (4), a surface layer loading station (5), a pressure holding station (6), and a unloading station (7) along the material conveying direction. The substrate feeding mechanism (8) is located on one side of the conveying device (2) and is set corresponding to the substrate feeding station (3); The dispensing mechanism (9) is located above the conveying device (2) corresponding to the dispensing station (4); The surface layer feeding mechanism (10) is located on one side of the conveying device (2) and is set corresponding to the surface layer feeding station (5); The pressure holding mechanism (11) is located above the conveying device (2) corresponding to the pressure holding station (6); The dispensing mechanism (9) includes a top bracket (34) set above the dispensing station (4), a plurality of support frames (35) are mounted on the top bracket (34), a transverse moving guide assembly (36) is installed on the support frame (35), a first moving assembly (37) and a second moving assembly (38) are slidably mounted on the transverse moving guide assembly (36), and a connecting assembly (39) is assembled between the first moving assembly (37) and the second moving assembly (38); a transverse driving assembly (40) is set on one side of the support frame (35) of the top bracket (34), and the output end of the transverse driving assembly (40) is connected to the first moving assembly (37); a first lifting dispensing module (41) is mounted on the first moving assembly (37), and a second lifting dispensing module (42) is mounted on the second moving assembly (38), and both the first lifting dispensing module (41) and the second lifting dispensing module (42) are equipped with dispensing components (43); Two sets of sliding sliders (44) are slidably mounted on the lateral movement guide assembly (36). The two sets of sliding sliders (44) correspond to the first moving plate (45) of the first moving assembly (37) and the second moving plate (46) of the second moving assembly (38), respectively. The connecting assembly (39) is a connecting rod (47), and the two ends of the connecting rod (47) are respectively connected to the first moving plate (45) and the second moving plate (46). The lateral drive assembly (40) is a lateral drive cylinder (48) installed on the top bracket (34). The output end of the lateral drive cylinder (48) is fixedly connected to the first moving plate (45).

2. The automatic dispensing and bonding machine according to claim 1, characterized in that, The conveying device (2) includes a conveying roller (12) mounted on a frame (1), an annular conveyor belt (13) wrapped around the outside of the conveying roller (12), and a conveying power assembly (14) for driving the conveying roller (12) to rotate; a negative pressure fan (15) is provided inside the frame (1), and vacuum adsorption holes (16) are evenly distributed on the surface of the conveyor belt.

3. The automatic dispensing and bonding machine according to claim 2, characterized in that, The conveying device (2) has a hollow negative pressure cavity inside, which is located inside the annular conveyor belt (13). The negative pressure fan (15) is connected to the negative pressure cavity through a negative pressure pipe, and the vacuum adsorption hole (16) is connected to the internal space of the negative pressure cavity.

4. The automatic dispensing and bonding machine according to claim 3, characterized in that, The substrate feeding mechanism (8) and the surface layer feeding mechanism (10) have the same structure, both including a mounting frame (17), a lifting drive assembly (18) set on the mounting frame (17), and a transverse transfer cylinder (19) set on the mounting frame (17). A transverse guide rail (20) is provided on the mounting frame (17) on one side of the transverse transfer cylinder (19). A transverse slider (21) is provided on the transverse guide rail (20). A detachable positioning plate (22) is provided on the transverse slider (21). A positioning area (24) formed by several sets of positioning pins (23) is provided on the detachable positioning plate (22). An auxiliary groove (25) is provided on the detachable positioning plate (22). The lifting drive assembly (18) includes a lifting drive cylinder (26) set on the mounting frame (17). A lifting plate (27) is provided at the output end of the lifting drive cylinder (26).

5. An automatic dispensing and bonding machine according to claim 4, characterized in that, A top mounting beam (28) is provided above the mounting platform (17). A longitudinal conveying module (29) is provided on the top mounting beam (28). A lifting control module (30) is provided at the output end of the longitudinal conveying module (29). A lifting mounting frame (31) is provided at the output end of the lifting control module (30). A long frame (32) is provided on the lifting mounting frame (31). Several sets of suction cups (33) are provided on the long frame (32).

6. The automatic dispensing and bonding machine according to claim 5, characterized in that, The first lifting dispensing module (41) includes a first lifting control cylinder (49) mounted on a first movable plate (45), the output end of which is connected to a first lifting plate (50), and multiple dispensing assemblies (43) are mounted on the first lifting plate (50); the second lifting dispensing module (42) includes a second lifting control cylinder (51) mounted on a second movable plate (46), the output end of which is connected to a second lifting plate (52), and a plurality of bottom mounting brackets (53) are provided on the second lifting plate (52), and auxiliary guide rails (54) and lateral fine-tuning cylinders are mounted on the bottom mounting brackets (53). (55) An auxiliary slider (56) is slidably mounted on the auxiliary guide rail (54). A movable frame (57) is provided on the auxiliary slider (56). The movable frame (57) is connected to the output end of the horizontal fine-tuning cylinder (55). A dispensing assembly (43) is provided on the movable frame (57). The dispensing assembly (43) includes a fixed frame (58), a dispensing spray gun (59), a dispensing control solenoid valve (60), and a glue inlet pipe (61). The dispensing spray gun (59) is fixed on the fixed frame (58). The top of the dispensing spray gun (59) is connected to the dispensing control solenoid valve (60). A glue inlet pipe (61) is provided on the side of the dispensing spray gun (59).

7. An automatic dispensing and bonding machine according to claim 6, characterized in that, The pressure holding mechanism (11) includes a pressure holding mounting frame (62) located on the conveying device (2) above the pressure holding station (6). The pressure holding mounting frame (62) is provided with a plurality of pressure holding control cylinders (63). The output end of the pressure holding control cylinders (63) is provided with a floating connecting seat (64). A pressure holding plate (66) is assembled below the floating connecting seat (64) by bolts (65). The bolts (65) are slidably connected to the floating connecting seat (64). A vertical mounting column (67) is provided on the pressure holding plate (66). The vertical mounting column (67) extends upward through the floating connecting seat (64). A connecting seat (64) is slidably fitted with a floating connecting seat (64); a buffer spring (68) is sleeved between the floating connecting seat (64) and the pressure plate (66) and on the outside of the vertical mounting column (67). The upper end of the buffer spring (68) abuts against the lower end face of the floating connecting seat (64) and the lower end abuts against the upper end face of the pressure plate (66), so that the pressure plate (66) always maintains an elastic floating and pressing state; a guide sleeve (69) is provided on the floating connecting seat (64), and a guide post (70) is provided inside the guide sleeve (69). The bottom end of the guide post (70) is connected to the pressure plate (66).

8. A dispensing and bonding method for an automatic dispensing and bonding machine as described in claim 7, characterized in that, Includes the following steps: S1. Start the equipment and preheat it. Turn on the negative pressure system to form a stable negative pressure adsorption force on the surface of the conveyor belt. At the same time, reset the substrate feeding mechanism (8), the surface layer feeding mechanism (10), the glue dispensing mechanism (9) and the pressure holding mechanism (11) to the initial zero position to complete the equipment standby preparation. S2. The substrate feeding mechanism (8) automatically completes the lifting and feeding of the couplet substrate, the suction cup (33) picks up the material and the transverse transfer of the material. The single couplet substrate is placed on the conveyor belt in sequence, and multiple sets of couplet substrates are arranged in an array at intervals along the conveying direction and are firmly positioned by negative pressure adsorption. S3. According to the specifications of the couplets to be processed and the requirements for glue dot spacing, the horizontal position of the first moving component (37) and the second moving component (38) is adjusted in advance by the horizontal drive component (40), and the horizontal fine-tuning cylinder (55) on the second lifting glue dispensing module (42) is used to precisely fine-tune the horizontal spacing of each group of glue dispensing components (43) to adapt to the glue dispensing position requirements of couplets of different widths. S4. The arrayed couplet substrates are conveyed at a constant speed to the dispensing station (4) by the conveyor belt. The first lifting control cylinder (49) and the second lifting control cylinder (51) extend synchronously, driving the corresponding dispensing component (43) to descend and approach the surface of the couplet substrate. The dispensing control solenoid valve (60) is opened, and the glue is conveyed to the dispensing spray gun (59) through the glue inlet pipe (61) to achieve glue application. The couplet substrates first pass through the first lifting dispensing module (41) to complete the dispensing of the long side areas on both sides of the couplet. Then, they are continuously fed by the conveyor belt to the bottom of the second lifting dispensing module (42) to complete the continuous dispensing of the middle area of ​​the couplet. This realizes the segmented, continuous, and leak-free batch array dispensing operation of long couplets. S5. The couple substrate that has completed the dispensing operation is conveyed to the couple surface layer feeding station by the conveyor belt. The couple surface layer feeding mechanism (10) completes the lifting and replenishment of the decorative couple surface layer, suction cup (33) suction, lateral transfer and precise alignment of the material, so that the decorative couple surface layer is flat and adhered to the dispensing area surface of the couple substrate, and the initial composite bonding of the substrate and the couple surface layer is achieved. S6. The semi-finished couplets that have been initially bonded are conveyed to the pressure holding station (6). The pressure holding control cylinder (63) drives the floating connecting seat (64) to move downward, which in turn drives the pressure holding plate (66) to press onto the surface of the couplet layer. Relying on the sliding fit between the bolt (65) and the floating connecting seat (64), the sliding guide fit between the vertical mounting column (67) and the buffer spring (68) elastic floating structure, combined with the double guiding and limiting effect of the guide sleeve (69) and the guide column (70), the pressure holding plate (66) adapts to the flatness and thickness error of the substrate. S7. After the preset pressure holding time is reached, the pressure holding mechanism (11) moves upward to reset as a whole. The finished couplets that have been shaped are conveyed to the unloading station (7) by the conveyor belt to complete the automatic glue application process of the couplets.

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