Positioning device for die cutting foam production
By combining a camera with a force-bearing plate, a positioning system has been developed that solves the problem of unstable positioning on flexible materials in traditional foam die-cutting devices. This system achieves high-precision, flexible foam positioning, improving die-cutting accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional foam die-cutting positioning devices cannot adapt to foam rolls of different thicknesses and widths, and are prone to scratches on soft materials. They also cannot respond to tension fluctuations and inertial offsets in real time, resulting in insufficient die-cutting accuracy.
A positioning system that combines a capture camera with a movable force plate, along with an elastic pressure bar and photoelectric sensors, enables dynamic positioning and adaptive adjustment, and corrects the foam position in real time through a visual feedback system.
It improves the positioning accuracy of foam die-cutting, reduces wear and scrap rate, adapts to the flexible fit of different specifications of foam, and enhances production efficiency and safety.
Smart Images
Figure CN224059948U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of foam processing, specifically a positioning device for die-cut foam production. Background Technology
[0002] In the foam die-cutting process, the precise positioning of the material directly affects the die-cutting accuracy and yield. Traditional positioning devices mostly rely on rigid limiting structures or manual intervention for adjustment. Their mechanical fixed guide grooves are difficult to adapt to the switching needs of foam rolls with different thicknesses and widths. Especially when the material surface is soft or has slight deformation, hard contact limiting can easily cause scratches or indentations in the foam.
[0003] While existing technologies attempt to introduce sliding rail adjustment mechanisms or basic photoelectric sensor feedback, they are limited by static positioning logic and unidirectional control modes, making it impossible to respond in real time to dynamic position errors caused by tension fluctuations and inertial offsets during foam conveying, resulting in frequent die-cutting misalignments. Some improved solutions employ multi-motor separate control adjustment units, which improve flexibility to some extent, but increase equipment size and maintenance difficulty due to structural redundancy and poor coordination. Furthermore, they lack visual monitoring and closed-loop correction capabilities, and positioning accuracy is often limited to ±0.5mm or higher, making it difficult to meet the processing requirements of high-precision electronic foam components (such as buffer pads and sealing strips).
[0004] To address the aforementioned pain points, there is an urgent need for a positioning device that integrates dynamic sensing, flexible positioning, and multi-axis collaborative control to overcome the static limitations of traditional mechanical positioning and adapt to the physical properties of foam materials and the needs of intelligent manufacturing scenarios. Therefore, a positioning device for die-cut foam production is currently required. Utility Model Content
[0005] The purpose of this utility model is to provide a positioning device for die-cut foam production, which accurately adjusts the position of the foam by using a capture camera in conjunction with a movable force plate and protective cotton, thereby solving the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for die-cutting foam production, including a worktable, with inclined grooves on the left and right sides of the worktable, two sets of material feeding racks symmetrically and rotatably installed on the left side of the worktable, a downward sliding groove on the upper surface of the worktable, two sets of movable boxes slidably installed inside the sliding groove, a liftable force plate on the upper part of the movable box, and a protective cotton rotatably installed at the center of the upper part of the force plate;
[0007] The workbench surface is bolted to the right side of the two sets of force-bearing plates. The mounting frame is elastically installed with two sets of pressure rods inside. Each set of pressure rods has a first pressure plate fixedly installed at its bottom end, and a set of capture cameras is installed on the outside of the first pressure plate.
[0008] A die-cutting assembly is mounted on the right side of the mounting bracket.
[0009] Preferably, two sets of turntables are symmetrically installed on the front and rear sides of the left side of the workbench. Each set of turntables has a set of mounting seats bolted to its outer side. A limit seat is bolted to the outer surface of the mounting seat. Several sets of electric push rods are installed inside the limit seat. A feeding rack is movably installed inside the limit seat, and the feeding rack is bolted to the telescopic end of the electric push rod.
[0010] Preferably, two sets of sliding plates are installed inside the sliding groove corresponding to two sets of movable boxes. A connecting groove is opened on the surface of the movable box corresponding to the sliding plate. The movable box is bolted to the connecting groove. A lifting motor is installed inside the movable box. The force-bearing plate is bolted to the telescopic top of the lifting motor.
[0011] Preferably, the force-bearing disk has several sets of auxiliary rotating wheels installed on its surface with equal curvature, a central shaft is fixedly installed at the center of the force-bearing disk, and the protective cotton is rotatably installed on the outer arc surface of the central shaft.
[0012] Preferably, the mounting frame has two sets of rotating feeding rollers installed inside, and protective tubes are symmetrically installed through the top of the mounting frame. The two sets of pressure rods slide inside the protective tubes respectively, and the capture camera is electrically connected to the die-cutting assembly.
[0013] Preferably, a second pressure plate is fitted onto the outer arc surface of the pressure rod, a spring is fixedly installed at the bottom of the second pressure plate, the bottom end of the spring is fixedly connected to the mounting bracket, and a nut is threaded onto the upper part of the second pressure plate on the outer arc surface of the pressure rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This positioning device achieves dynamic positioning and adaptive adjustment during foam conveying by working together with the inclined grooves on both sides of the worktable and the adjustable-angle feeding rack, combined with the electric slide-driven moving box and the protective cotton controlled by the lifting motor. This effectively reduces material wear and improves positioning accuracy. The visual feedback system composed of the elastic pressure rod and the capture camera, together with the photoelectric sensor of the die-cutting component, corrects the foam position in real time, significantly reducing the scrap rate caused by die-cutting offset.
[0016] The rotating and adjustable feeding rack ensures flexible adaptation to different specifications of foam, while the modular design of the chute, the liftable force plate and auxiliary wheel further enhances the equipment's adaptability to complex working conditions. The overall structure takes into account both efficient production and operational safety, solving the pain points of unstable positioning and lagging adjustment in traditional die-cutting equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;
[0019] Figure 3 This is a schematic diagram of the skateboard mounting structure of this utility model;
[0020] Figure 4 This is a schematic diagram showing the disassembled installation structure of the material feeding rack of this utility model;
[0021] Figure 5 This is a schematic diagram showing the disassembled installation structure of the force-bearing plate of this utility model;
[0022] Figure 6 This is a schematic diagram of the camera installation structure of this utility model.
[0023] In the diagram: 1. Workbench; 2. Inclined groove; 3. Turntable; 4. Slide; 5. Slide plate; 6. Mounting base; 7. Connecting slot; 8. Limiting seat; 9. Electric push rod; 10. Feeding rack; 11. Moving box; 12. Connecting groove; 13. Lifting motor; 14. Force plate; 15. Auxiliary rotating wheel; 16. Central shaft; 17. Protective cotton; 18. Mounting frame; 19. Feeding roller; 20. Protective tube; 21. Pressure rod; 22. First pressure plate; 23. Capture camera; 24. Second pressure plate; 25. Spring; 26. Nut; 27. Die-cutting assembly. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] This utility model provides: a positioning device for die-cutting foam production, such as... Figures 1-6As shown, the system includes a workbench 1, with inclined grooves 2 on both the left and right sides. Two sets of feeding racks 10 are symmetrically and rotatably mounted on the left side of the workbench 1. A downward-facing sliding groove 4 is provided on the upper surface of the workbench 1, inside which two sets of movable boxes 11 are slidably mounted. A liftable force-bearing plate 14 is installed on the upper part of the movable box 11, and a protective cotton 17 is rotatably mounted at the center of the upper part of the force-bearing plate 14. The two sets of inclined grooves 2 on the left and right sides of the upper surface of the base 1 protect the foam during loading and unloading, making the foam loading and unloading smoother and preventing wear during the foam conveying process. The two sets of feeding racks 10 can rotate, allowing for better angle adjustment for foams of different specifications, thus improving efficiency. The system effectively controls the position of the foam conveyor, improving the accuracy of foam die-cutting. The slide 4 limits the movement of the moving box 11. Two sets of electric slides are installed inside the base 1 corresponding to the position of the slide 4. Two sets of sliding plates 5 are installed on one side of the slide 4 corresponding to the moving end controlled by the two sets of electric slides. Each set of sliding plates 5 is bolted to the connecting groove 12 on the side of the moving box 11, ensuring that a single set of electric slides can control the movement of a single set of moving boxes 11. The force plate 14 set on the upper part of the moving box 11 can be adjusted by adaptively raising and lowering to cooperate with the movement of the foam. At the same time, the position of the foam can be adjusted by moving one or two sets of moving boxes 11 simultaneously to make the protective cotton 17 fit against the side of the foam.
[0026] On the upper surface of the workbench 1, a mounting frame 18 is bolted to the right side of the two sets of force-bearing plates 14. Two sets of pressure rods 21 are elastically installed inside the mounting frame 18. A set of first pressure plates 22 is fixedly installed at the bottom of each set of pressure rods 21, and a set of capture cameras 23 is installed on the outside of the first pressure plates 22. The mounting frame 18 limits the pressure rods 21. Since the pressure rods 21 are elastically installed, the first pressure plates 22 can further limit the foam during the movement of the foam. In addition, the capture camera 23 installed on one side of the first pressure plate 22 can record the side position of the foam during the foam conveying process. In conjunction with the photoelectric sensor or vision system inside the die-cutting assembly 27, the die-cutting assembly 27 controls the two sets of electric slides inside the base 1 to move the moving box 11, thereby completing the positioning of the foam.
[0027] The right side of the mounting bracket 18 is equipped with a die-cutting assembly 27. The die-cutting assembly 27 is a common foam die-cutting assembly, which includes a human-machine interface (HMI) for control: a touch screen or control panel for setting parameters such as pressure, speed, and stroke; a PLC or CNC system for automating the die-cutting process and action sequence; and pressure and speed sensors for real-time monitoring and adjustment of the working status.
[0028] Emergency stop buttons, safety light curtains, and protective covers for safety assistance: to prevent operational accidents; lubrication systems: to reduce wear on molds and transmission components; and dust removal or cleaning devices: to remove debris generated during cutting, such as vacuum adsorption systems.
[0029] Power source for driving and transmission: electric motor, servo motor or stepper motor: driving the die-cutting action.
[0030] Hydraulic pumps or pneumatic devices are used for pressure control and transmission mechanisms, such as crank-connecting rod mechanisms, common in flatbed die-cutting machines. Gear, belt, and chain drives are also used to control the movement trajectory of the die.
[0031] Positioning and alignment system columns and guide bushings: ensure precise alignment of upper and lower molds; positioning pins and positioning holes: initial positioning of materials or molds; photoelectric sensors or vision systems: automatically detect material positions and correct offsets; high-precision equipment commonly uses guide rails and sliders: ensure precise mold alignment.
[0032] The photoelectric sensor or vision system works in conjunction with the capture camera 23 to locate the foam feeding position, thereby ensuring that the foam is in a stable position when it is conveyed into the die-cutting assembly 27, and avoiding the scrap problem caused by foam displacement during the die-cutting process.
[0033] Preferably, two sets of turntables 3 are symmetrically installed on the front and rear sides of the left side of the workbench 1. Each set of turntables 3 has a mounting base 6 bolted to its outer side. A limit seat 8 is bolted to the outer surface of the mounting base 6. Several sets of electric push rods 9 are installed inside the limit seat 8. A feeding rack 10 is movably installed inside the limit seat 8, and the feeding rack 10 is bolted to the telescopic end of the electric push rods 9. The turntables 3 are controlled by an electric driver, which uses a servo motor driver of model BSH1002P31A2A for high dynamic response. The operation facilitates detailed positional adjustments and positioning of the foam. A connecting slot 7 is provided on one side of the mounting base 6, which can be bolted to the turntable 3 to ensure stable rotation of the mounting base 6. The limiting seat 8 installed on the outside of the mounting base 6 limits the electric push rod 9 and can also limit the feeding rack 10. The electric push rod 9 is a RACM550 model from the RACO series, which can effectively control the spacing of the feeding rack 10. Together with the rotating mounting base 6, it can better control the position of the foam roll.
[0034] Furthermore, two sets of sliding plates 5 are installed inside the slide 4 corresponding to the two sets of movable boxes 11. The surface of the movable box 11 has a connecting groove 12 corresponding to the sliding plate 5. The movable box 11 is bolted to the connecting groove 12. A lifting motor 13 is installed inside the movable box 11. The force plate 14 is bolted to the telescopic top of the lifting motor 13. The sliding plate 5 installed inside the slide 4 is connected to the movable box 11. The position of the movable box 11 is controlled by the electric slide table installed inside the base 1. The electric slide table model used is FX-05N-P10-400-1K-CK-P01-Z. Its compact structure is suitable for space-constrained automated equipment. The lifting motor 13 installed inside the movable box 11 is a model XWD11-23-YE437-6P electromagnetic brake motor, which can be well adapted to servo motors or hydraulic motors and supports high-load positioning, thereby controlling the lifting of the force plate 14 to adapt to the height of the foam.
[0035] Furthermore, the force-bearing plate 14 has several sets of auxiliary rotating wheels 15 installed on its surface with equal curvature. A central shaft 16 is fixedly installed at the center of the force-bearing plate 14. The protective cotton 17 is rotatably installed on the outer arc surface of the central shaft 16. The auxiliary rotating wheels 15 installed on the surface of the force-bearing plate 14 can assist the foam in moving and reduce the wear of the foam. The central shaft 16 installed at the center of the force-bearing plate 14 limits the protective cotton 17. The protective cotton 17 can contact the side of the foam, thereby further improving the control of the foam position.
[0036] It is worth noting that two sets of rotating feeding rollers 19 are installed inside the mounting frame 18. Protective tubes 20 are symmetrically installed through the top of the mounting frame 18. Two sets of pressure rods 21 slide inside the protective tubes 20 respectively. The capture camera 23 is electrically connected to the die-cutting component 27. The feeding rollers 19 installed inside the mounting frame 18 can cooperate to feed the foam. The protective tubes 20 installed at the top of the mounting frame 18 limit the pressure rods 21, and the first pressure plate 22 at the bottom of the pressure rods 21 can limit the surface of the foam, thereby ensuring the stability of the foam movement.
[0037] Specifically, a second pressure plate 24 is fitted onto the outer arc surface of the pressure rod 21. A spring 25 is fixedly installed at the bottom of the second pressure plate 24. The bottom end of the spring 25 is fixedly connected to the mounting bracket 18. A nut 26 is threaded onto the outer arc surface of the pressure rod 21 at the upper part of the second pressure plate 24. The second pressure plate 24 and the spring 25 provide the pressure rod 21 with a certain degree of elasticity. The threaded groove on the surface of the pressure rod 21, in conjunction with the nut 26, can control the overall height of the pressure rod 21, thereby controlling the operating height of the first pressure plate 22 and the capture camera 23.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A positioning device for die cutting foam production, characterized by: Including workbench (1), the workbench (1) left and right sides are respectively provided with inclined grooves (2), the workbench (1) left side is symmetrically rotatably installed with two groups of material placing racks (10), the upper surface of the workbench (1) is provided with a sliding groove (4) downward, the sliding groove (4) is slidably installed with two groups of moving boxes (11), the moving box (11) is provided with a liftable stress disc (14) on the upper portion, the stress disc (14) is rotatably installed with a protective cotton (17) on the upper portion center, The upper surface of the workbench (1) is bolted with a mounting bracket (18) on the right side of the two stress discs (14), the mounting bracket (18) is elastically installed with two groups of pressure rods (21), each group of pressure rods (21) is fixedly installed with a group of first pressure plates (22) at the bottom, and a group of capture cameras (23) is installed on the outer side of the first pressure plate (22); The mounting bracket (18) is provided with a die-cutting assembly (27) on the right side.
2. The positioning device for die cutting foam production according to claim 1, characterized in that: The workbench (1) is symmetrically installed with two groups of turntables (3) on the left front and rear sides, each group of turntables (3) is bolted with a group of mounting seats (6) on the outer side, the mounting seat (6) is bolted with a limiting seat (8) on the outer surface, the limiting seat (8) is installed with a plurality of groups of electric push rods (9) inside, the limiting seat (8) is movably installed with a material placing rack (10) inside, and the material placing rack (10) is bolted with the telescopic end of the electric push rod (9).
3. The positioning device for die cutting foam production according to claim 2, characterized in that: The sliding groove (4) is provided with two groups of sliding plates (5) corresponding to the two groups of moving boxes (11), the surface of the moving box (11) is provided with a connecting groove (12) corresponding to the sliding plate (5), the moving box (11) is bolted with the connecting groove (12), the moving box (11) is installed with a lifting motor (13) inside, and the stress disc (14) is bolted with the telescopic top end of the lifting motor (13).
4. The positioning device for die cutting foam production according to claim 3, characterized in that: The stress disc (14) is installed with a plurality of groups of auxiliary rotating wheels (15) on the surface, the stress disc (14) is fixedly installed with a central shaft (16) at the center, and the protective cotton (17) is rotatably installed on the outer arc surface of the central shaft (16).
5. The positioning device for die cutting foam production according to claim 4, characterized in that: The mounting bracket (18) is installed with two groups of rotating feeding rollers (19) inside, the mounting bracket (18) is symmetrically penetrated with a protective tube (20) at the top, and the two groups of pressure rods (21) are respectively slidably installed in the protective tube (20), and the capture camera (23) is electrically connected with the die-cutting assembly (27).
6. The positioning device for die cutting foam production according to claim 5, characterized in that: The outer arc surface of the pressure rod (21) is sleeved with a second pressure plate (24), the second pressure plate (24) is fixedly installed with a spring (25) at the bottom, the bottom end of the spring (25) is fixedly connected with the mounting bracket (18), and the outer arc surface of the pressure rod (21) is threadedly installed with a nut (26) at the upper portion of the second pressure plate (24).