Cross asynchronous foam attaching and cutting equipment

By using the asynchronous traction and automatic winding technology of the cross-type asynchronous foam bonding and cutting equipment, the problems of low bonding accuracy of foam and silicone, uneven cutting, and difficulty in handling tail material in traditional processes have been solved, thus achieving efficient and automated production.

CN121609156APending Publication Date: 2026-03-06CHANGZHOU HONGJU ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202511924979.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional manual or semi-automatic foam and silicone bonding and cutting processes suffer from problems such as low bonding accuracy, uneven cutting, difficulty in handling waste materials, low production efficiency, complex equipment structure, and inconvenient material changing, which cannot meet the needs of high-efficiency production.

Method used

The cross-type asynchronous foam bonding and cutting equipment, through asynchronous traction control, positioning structure and automatic winding function, realizes automatic feeding, bonding, cutting of foam and green silicone, and synchronous winding of tail material and waste, thereby improving production efficiency and material utilization.

Benefits of technology

It achieves highly efficient and automated bonding and cutting of foam and green silicone, improving production efficiency and material utilization, reducing manual intervention, and solving the precision and efficiency problems in traditional processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses cross asynchronous foam attaching and cutting equipment which comprises a rack. A feeding assembly, a traction assembly and a pressing device are arranged on the rack. The feeding assembly comprises a foam feeding roller and a green silica gel feeding shaft, the foam feeding roller and the green silica gel feeding shaft are rotationally installed on the rack, the foam feeding roller is used for installing a foam coiled material, the green silica gel feeding shaft is used for installing a green silica gel coiled material, and the foam feeding roller is arranged above the green silica gel feeding shaft; the traction assembly comprises a first traction roller and a second traction roller, the first traction roller is located below the foam feeding shaft and used for pulling foam and separating the foam into a foam belt and a tailing belt, and the second traction roller is located above the pressing device and used for pulling attached materials. The cross asynchronous structure is adopted for achieving attached cutting of foam and green silica gel, and the effect of improving the production efficiency and the material utilization rate is achieved.
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Description

Technical Field

[0001] This invention relates to the field of equipment for bonding foam and sheet materials, and in particular to a cross-type asynchronous foam bonding and cutting equipment. Background Technology

[0002] In numerous fields such as electronics, automotive interiors, and medical supplies, the demand for composite sheets with cushioning, sealing, or insulation functions is growing. These composite sheets are typically produced by laminating foam with soft materials such as silicone and then cutting them. With continuous technological advancements and increasingly stringent market demands for product quality, the need for efficient and precise composite sheet production technologies in this field is becoming increasingly urgent. The development of this lamination and cutting process not only improves product performance and quality but also reduces production costs to some extent, enhances companies' market competitiveness, and plays a positive role in promoting the development of related industries.

[0003] In traditional processes, the bonding of foam and silicone is mostly done manually or with semi-automatic equipment. In manual bonding, workers rely on their experience and skills to join the foam and silicone, but this method is susceptible to human error. While semi-automatic equipment reduces labor intensity to some extent, its automation level is limited, and some manual assistance is still required. The cutting stage also involves both manual operation and the use of simple mechanical equipment. Waste and scrap materials are generally collected and sorted manually. In addition, some specialized bonding and cutting equipment is currently in use, but these devices are complex in design, involving numerous components and cumbersome operating procedures.

[0004] However, traditional manual or semi-automatic lamination methods have many obvious drawbacks. Manual operation makes it difficult to guarantee the precision of each lamination, resulting in inconsistent product quality, and the slow lamination speed severely impacts production efficiency. Simultaneously, during the cutting process, the lack of precise positioning and control easily leads to uneven cutting, further reducing the product pass rate. Furthermore, waste material disposal is difficult; manual collection and sorting of waste materials is not only time-consuming and labor-intensive but also prone to waste. While some existing lamination and cutting equipment possesses certain automation capabilities, their complex structure results in high maintenance and upkeep costs, and the material changeover process is cumbersome, affecting the efficiency of continuous production. Moreover, these devices are inefficient in handling waste material and cannot meet the demands of large-scale production. Summary of the Invention

[0005] This application provides a cross-type asynchronous foam bonding and cutting device, which uses a cross-type asynchronous structure to achieve foam bonding and cutting with green silicone, thereby improving production efficiency and material utilization.

[0006] This application provides a cross-type asynchronous foam bonding and cutting device, which adopts the following technical solution: A cross-type asynchronous foam bonding and cutting device includes a frame, on which a feeding assembly, a traction assembly, and a pressing device are mounted. The feeding assembly includes a foam feeding roller and a green silicone feeding shaft, which are rotatably mounted on the frame. The foam feeding roller is used to load foam rolls, and the green silicone feeding shaft is used to load green silicone rolls. The foam feeding roller is positioned above the green silicone feeding shaft. The traction assembly includes a first traction roller and a second traction roller. The first traction roller is located below the foam feeding shaft and is used to traction the foam and separate it into foam strips and tail strips. The second traction roller is located above the pressing device and is used to traction the bonded material. The pressing device is located below the traction assembly and is used to press the green silicone and foam together and then cut the foam.

[0007] By adopting the above technical solution, the present invention designs a cross-type asynchronous foam bonding and cutting device. In use, the foam is led out from the foam feeding shaft and separated into a foam strip and a tail strip by the first traction roller. The green silicone is led out from the green silicone feeding shaft and enters the pressing device synchronously with the foam strip for pressing and cutting. After cutting, the composite material is left, and the waste material is wound up by the waste material receiving roller. This device realizes automatic feeding, bonding, pressing and cutting of foam and green silicone, improves production efficiency and material utilization, reduces manual intervention, and solves the problems of low bonding accuracy, uneven cutting, difficult tail material handling, and low production efficiency of traditional processes, as well as the complex structure, inconvenient material changing, and low efficiency of tail material and waste material winding of existing equipment.

[0008] Preferably, the first traction roller is mounted above the pressing device via a first fixing frame, and the second traction roller is mounted above the pressing device via a second fixing frame. Each of the first and second traction rollers is provided with a pressure roller at its top. The two pressure rollers are rotatably mounted on the first and second fixing frames, respectively, and an inlet / outlet jamming position is formed between the pressure rollers and the first and second traction rollers.

[0009] By adopting the above technical solution, during use, the top of the pressing device is fixedly connected to the first fixed frame and the second fixed frame, and the first traction roller and the second traction roller are respectively rotatably connected to the corresponding fixed frame. Both of them are equipped with pressure rollers on their tops, and the pressure rollers and the traction rollers form an inlet and outlet clamping position, which can better pull the foam and the laminated material and ensure the stability of material conveying.

[0010] Preferably, the first fixing frame is further provided with a plurality of film-tearing rollers, which are used to cooperate with the first traction roller to tear the film.

[0011] By adopting the above technical solution, the film on the foam roll can be effectively removed during the foam feeding process by using the film-tearing roller in conjunction with the first traction roller to tear the film.

[0012] Preferably, both the first traction roller and the second traction roller are driven by servo motors to achieve asynchronous traction control, and the two servo motors are respectively mounted on the first fixed frame and the second fixed frame.

[0013] By adopting the above technical solution, asynchronous traction control is achieved by using a servo motor to drive the first and second traction rollers. This allows for flexible adjustment of the traction speed of the foam and laminated materials according to actual production needs, thereby improving the adaptability and flexibility of the equipment.

[0014] Preferably, a tail material winding roller is provided on one side below the foam feeding roller, and the tail material winding roller works in conjunction with the first traction roller to wind up the tail material separated from the foam.

[0015] By adopting the above technical solution, the foam tail material can be automatically wound up during use, avoiding interference from the tail material to the production process, improving production efficiency and material utilization, and reducing manual intervention.

[0016] Preferably, the surface of the second traction roller is provided with a locking structure, which is an annular protrusion that cooperates with the edge of the material. The locking structure is used to position the material and prevent it from deviating.

[0017] By adopting the above technical solution, the annular protrusion locking structure that matches the surface of the second traction roller with the edge of the material enhances the positioning effect of the material, further avoids lateral displacement of the material during the conveying process, and ensures the accuracy of the material's position in subsequent processing.

[0018] Preferably, the bottom of the pressure plate is provided with multiple conical positioning posts, which cooperate with the positioning holes on the workpiece for positioning.

[0019] By adopting the above technical solution, when in use, the bottom of the pressing plate of the pressing device is equipped with a conical positioning post that cooperates with the positioning hole on the workpiece for positioning, which can further improve the positioning accuracy of the workpiece during pressing and cutting, and make the bonding and cutting of green silicone and foam more precise.

[0020] Preferably, a waste material take-up roller is provided above the pressing device, and a driving device is installed on one side of the waste material take-up roller.

[0021] By adopting the above technical solution, when in use, a waste material winding roller is set above the pressing device and a drive device is installed on one side of it, which can realize the automatic winding of the waste material generated after cutting.

[0022] In summary, this application has the following beneficial effects: 1. The present invention provides a cross-type asynchronous foam bonding and cutting equipment, which realizes automatic feeding, bonding, pressing and cutting of foam and green silicone, and synchronous winding of tail material and waste material, thereby improving production efficiency and material utilization and reducing manual intervention. 2. The cross-type asynchronous foam bonding and cutting device designed in this invention has a locking structure on the surface of the traction roller to ensure that the material does not shift during the traction process, thereby improving the cutting accuracy; 3. The cross-type asynchronous foam bonding and cutting equipment designed in this invention solves the problems of low bonding accuracy, uneven cutting, difficulty in handling tail material, and low production efficiency of traditional processes, as well as the complex structure, inconvenient material changing, and low efficiency of tail material and waste material winding of existing equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a schematic diagram showing the pressing device in the embodiment; Explanation of reference numerals in the attached drawings: 1. Frame; 2. Feeding assembly; 21. Foam feeding roller; 22. Green silicone feeding shaft; 3. Traction assembly; 31. First traction roller; 32. Second traction roller; 4. Pressing device; 41. Pressure plate; 42. Worktable; 5. First fixed frame; 6. Second fixed frame; 7. Pressure roller; 8. Film tearing roller; 9. Servo motor; 10. Tail material take-up roller; 11. Clamping structure; 12. Conical positioning column; 13. Waste material take-up roller. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] This invention discloses a cross-type asynchronous foam bonding and cutting device, such as... Figure 1 and Figure 2 As shown, the system includes a frame 1, a feeding assembly 2, a traction assembly 3, and a pressing device 4. The feeding assembly 2, traction assembly 3, and pressing device 4 are all mounted on the frame 1. The feeding assembly 2 is used to install foam rolls and green silicone rolls. The traction assembly 3 separates the foam and pulls the laminated material. The pressing device 4 presses the green silicone and foam together and cuts them. This achieves automatic feeding, lamination, pressing, and cutting of foam and green silicone, improving production efficiency and material utilization while reducing manual intervention. This is because each component has a clear division of labor and works together to form a complete production process, reducing manual operation steps.

[0026] Specifically, the feeding assembly 2 includes a foam feeding roller 21 and a green silicone feeding shaft 22. The foam feeding roller 21 is used to mount the foam roll, and the green silicone feeding shaft 22 is used to mount the green silicone roll, with the foam feeding roller 21 positioned above the green silicone feeding shaft 22. The foam feeding roller 21 is typically a cylindrical shaft, made of metal such as stainless steel to ensure sufficient strength to support the foam roll. It is rotatably mounted on the frame 1 via bearings and other components, facilitating the unloading of the foam roll. The green silicone feeding shaft 22 is also a shaft structure, and can also be made of metal, with a similar mounting method to the foam feeding roller 21. Both the foam feeding roller 21 and the green silicone feeding shaft 22 can also be made of plastic shafts, as long as they meet the requirements for supporting the roll.

[0027] Specifically, the traction assembly 3 includes a first traction roller 31 and a second traction roller 32. The first traction roller 31 is located below the foam feeding shaft and is used to traction the foam and separate it into a foam strip and a tail strip. The second traction roller 32 is located above the pressing device 4 and is used to traction the laminated material. The first traction roller 31 is generally a smooth cylindrical roller, and its internal structure can be solid or hollow to reduce weight. It is driven by a servo motor 9, which can precisely control the speed and direction of the first traction roller 31. The first traction roller 31 is mounted above the pressing device 4 via a first fixing frame 5. The first fixing frame 5 is usually a frame structure welded from metal plates, and it is fixedly connected to the frame 1 by bolts or other means. The structure of the second traction roller 32 is similar to that of the first traction roller 31. It is mounted above the pressing device 4 via a second fixing frame 6, and the structure and installation method of the second fixing frame 6 are similar to those of the first fixing frame 5. Both the first traction roller 31 and the second traction roller 32 are equipped with pressure rollers 7 at their tops. The pressure rollers 7 are also cylindrical, and their surfaces can be coated with soft materials such as rubber to increase friction with the material. The two pressure rollers 7 are rotatably mounted on the first fixed frame 5 and the second fixed frame 6, respectively. A material feeding / discharging position is formed between the pressure rollers 7 and the first traction roller 31 and the second traction roller 32. The material passes through this position, and the pressure rollers 7 ensure stable material movement during the traction process. Alternatively, the first traction roller 31 and the second traction roller 32 can also be rollers with textured surfaces to further increase friction.

[0028] The first fixed frame 5 is also equipped with multiple film-tearing rollers 8. These film-tearing rollers 8 are generally small cylindrical rollers with smooth or slightly raised surfaces. They work in conjunction with the first traction roller 31 to tear the film. As the foam passes between the first traction roller 31 and the film-tearing roller 8, the film-tearing roller 8 can peel off the backing paper from the foam. The film-tearing roller 8 is rotatably mounted on the first fixed frame 5 via bearings and other components. Its mounting position can be adjusted according to actual needs. The film-tearing roller 8 also has limiting protrusions for positioning the foam.

[0029] Both the first traction roller 31 and the second traction roller 32 are driven by servo motors 9 to achieve asynchronous traction control. The two servo motors 9 are respectively mounted on the first fixed frame 5 and the second fixed frame 6. The servo motors 9 feature high precision and high response speed, enabling precise control of the speed and direction of the first traction roller 31 and the second traction roller 32 according to production needs, thus achieving asynchronous traction. This asynchronous traction can be flexibly adjusted according to the different characteristics of foam and silicone rubber and production requirements, improving production efficiency and bonding accuracy. Stepper motors can also be used for the servo motors 9 here. Although the precision of stepper motors may be slightly lower, they can still be used in some applications where precision requirements are not particularly high.

[0030] A tail material take-up roller 10 is located on one side below the foam feeding roller 21. The tail material take-up roller 10 is generally a cylindrical shaft with a smooth surface or some anti-slip texture. The tail material take-up roller 10, in conjunction with the first traction roller 31, takes up the tail material separated from the foam. It is driven by a motor or other drive device to rotate, gradually winding the tail material onto the roller. The tail material take-up roller 10 is rotatably mounted on the frame 1 via bearings and other components, and its installation position must ensure smooth winding of the tail material. The tail material take-up roller 10 can also be a roller with an automatic tension adjustment function to ensure neat and stable winding of the tail material.

[0031] The second traction roller 32 has a locking structure 11 on its surface. The locking structure 11 is an annular protrusion that mates with the edge of the material. The locking structure 11 is used to position the material and prevent it from deviating. The height and width of the annular protrusion can be adjusted according to the thickness and width of the material. The locking structure 11 can be made of soft materials such as rubber to avoid scratching the material.

[0032] Specifically, the pressing device 4 is located below the traction assembly 3 and is used to press the green silicone rubber and foam together and then cut them. The pressing device 4 includes a pressure plate 41, a worktable 42, a lifting rod, a cutting die, and a drive cylinder. The pressure plate 41 is connected to the lifting rod and is driven by the drive cylinder to move up and down. The worktable 42 is used to transport the workpiece for bonding. The cutting die is embedded in the surface of the pressure plate 41 and cooperates with the transported workpiece to cut it. The pressure plate 41 is generally a flat plate, and its material can be metal, such as aluminum alloy, to ensure sufficient strength and rigidity. The lifting rod is usually a cylindrical rod, which is fixedly connected to the pressure plate 41 by welding or bolts. The drive cylinder is connected to the lifting rod through a piston rod. When the drive cylinder works, the piston rod extends and retracts, causing the lifting rod and the pressure plate 41 to move up and down. The worktable 42 can be a horizontal flat plate with a smooth surface. Workpieces are conveyed via a transmission roller on the other side, and the conveying is intermittent. This facilitates bonding and cutting with the pressing device 4. This solution does not specify the structure used for conveying the workpieces, as it is existing technology and only needs to meet the requirements for normal workpiece conveying. The shape of the cutting die is designed according to the shape of the product to be cut. It typically consists of a sharp blade and a blade holder, which is fixed to the pressure plate 41 by bolts or other means. The cutting die performs cutting by cooperating with the mold on the workpiece. The drive cylinder can also be replaced by an electric push rod or other drive device. After foam bonding and cutting, the foam is conveyed along with the workpiece, and the waste generated during cutting is wound up.

[0033] Multiple tapered positioning posts 12 are provided at the bottom of the pressure plate 41. These posts 12 engage with positioning holes on the workpiece for positioning. The tapered positioning posts 12 can be made of metal, with a tapered top for easy insertion into the positioning holes. The positioning holes are pre-drilled on the workpiece, and their position and size match the tapered positioning posts 12. The engagement of the tapered positioning posts 12 and the positioning holes ensures the positional accuracy of the pressure plate 41 during pressing and cutting, improving product quality. Alternatively, the tapered positioning posts 12 can be magnetic, achieving more precise positioning through magnetic attraction.

[0034] A waste material take-up roller 13 is installed above the pressing device 4, and a drive device is installed on one side of the waste material take-up roller 13. The structure of the waste material take-up roller 13 is similar to that of the tail material take-up roller 10, and it is used to take up the waste material generated after cutting. The drive device can be a motor, which drives the waste material take-up roller 13 to rotate through a transmission device, gradually winding the waste material onto the roller body. The waste material take-up roller 13 is rotatably mounted on the frame 1 through bearings and other components, and its installation position must ensure that the waste material can be smoothly wound up. During the cutting process, the cut foam is left through the workpiece, and the excess part is waste material. The waste material and the green silicone adhesive adhere to each other, and are thus wound up together with the green silicone adhesive.

[0035] The implementation principle of this embodiment is as follows: This cross-type asynchronous foam bonding and cutting equipment achieves automatic feeding, bonding, pressing and cutting of foam and silicone rubber, and synchronous winding of tail material and waste material through the coordinated work of its components. The feeding component 2 installs the foam roll and the silicone rubber roll, the traction component 3 separates the foam and pulls the material, the pressing device 4 performs pressing and cutting, and the tail material winding roller 10 and the waste material winding roller 13 respectively wind up the tail material and waste material. This simple structure and clear division of labor improves production efficiency and material utilization, reduces manual intervention, and solves problems such as low bonding accuracy, uneven cutting, and difficult tail material processing in traditional processes, making a significant improvement and contribution to existing technology.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cross asynchronous foam lamination cutting device, characterized in that: Including frame (1), be provided with loading assembly (2), traction assembly (3) and compression device (4) on the frame (1); The loading assembly (2) includes a foam loading roller (21) and a green silica gel loading shaft (22), the foam loading roller (21) and the green silica gel loading shaft (22) are rotatably installed on the frame (1), the foam loading roller (21) is used for mounting the foam roll, the green silica gel loading shaft (22) is used for mounting the green silica gel roll, and the foam loading roller (21) is arranged above the green silica gel loading shaft (22); The traction assembly (3) includes a first traction roller (31) and a second traction roller (32), the first traction roller (31) is located below the foam loading shaft, used for traction foam and separating it into foam tape and tail tape, the second traction roller (32) is located above the compression device (4), used for traction after the material is attached. The compression device (4) is located below the traction assembly (3), used for pressing green silica gel and foam, and cutting.

2. The cross asynchronous foam lamination cutting device according to claim 1, wherein: The first fixed frame (5) and the second fixed frame (6) are fixedly connected to the top of the compression device (4), the first traction roller (31) is rotatably connected to the first fixed frame (5), the second traction roller (32) is rotatably connected to the second fixed frame (6), the top of the first traction roller (31) and the second traction roller (32) is provided with a compression roller (7), two compression rollers (7) are rotatably installed on the first fixed frame (5) and the second fixed frame (6), respectively, and the compression roller (7) and the first traction roller (31) and the second traction roller (32) form an in-out clamping position.

3. The cross asynchronous foam lamination cutting device according to claim 2, characterized in that: A plurality of film tearing rollers (8) are rotatably installed on the first fixed frame (5), and the film tearing rollers (8) are used for tearing film in cooperation with the first traction roller (31).

4. The cross asynchronous foam lamination cutting device according to claim 1, wherein: The first traction roller (31) and the second traction roller (32) are driven by a servo motor (9), realizing asynchronous traction control, and two servo motors (9) are installed on the first fixed frame (5) and the second fixed frame (6), respectively.

5. The cross asynchronous foam lamination cutting device according to claim 1, wherein: A tail material winding roller (10) is arranged on one side below the foam loading roller (21), and the tail material winding roller (10) cooperates with the first traction roller (31) to wind the tail material separated from the foam.

6. The cross asynchronous foam lamination cutting device according to claim 1, wherein: The second traction roller (32) is provided with a clamping structure (11) on the surface, the clamping structure (11) is an annular protrusion, cooperates with the edge of the material, and the clamping structure (11) is used for positioning the material to prevent deviation.

7. The cross asynchronous foam lamination cutting device according to claim 1, wherein: The compression device (4) includes a pressing plate (41), a workbench (42), a lifting rod, a cutting knife die and a driving cylinder, the pressing plate (41) is connected with the lifting rod and is driven by the driving cylinder to move up and down, the workbench (42) is used for conveying workpieces for attachment, and the cutting knife die is embedded on the surface of the pressing plate (41) and cooperates with the conveyed workpieces for cutting.

8. The cross asynchronous foam lamination cutting device according to claim 7, characterized in that: A plurality of tapered positioning columns (12) are arranged on the bottom of the pressing plate (41), and the tapered positioning columns (12) cooperate with positioning holes on the workpieces for positioning.

9. The cross asynchronous foam lamination cutting device according to claim 1, wherein: The pressing device (4) is provided with a waste material winding roller (13) above it, and a driving device is installed on one side of the waste material winding roller (13).