Corner aligning hollow flexible self-adaptive compression roller

Abstract

The utility model discloses a corner aligning hollow flexible self-adaptive compression roller, and relates to pultrusion and winding of composite materials, in particular to the field of laying and forming of an automatic fiber laying (tape laying) machine. According to the corner self-aligning hollow flexible self-adaptive compression roller, the movable plate is rotationally connected with the connecting bracket through the rotating shaft screw, so that the compression roller can freely rotate during pressing to realize self-adaption with a curved surface of a mold, the contact area and pressure of a fiber (belt) and the curved surface of the mold are ensured, the forming quality of a component is improved, manual intervention is reduced, the production efficiency is improved, and the production cost is reduced. A rubber wrapping layer is arranged on the surface of the pressing roller, is made of a soft material and is of a hollow structure, large-area elastic deformation can be generated, the pressing roller makes large-area contact with a mold, the compactness of a fiber yarn (belt) laying layer is higher, meanwhile, the adaptability to the surface of the mold is higher, and the pressing roller is fixedly connected with a fixing side plate through an installation shaft rod and is locked through a threaded plug pin. The compression roller is convenient to disassemble and replace, and the convenience is improved.

Description

Technical Field

[0001] The utility model relates to composite material pultrusion and winding, and is particularly suitable for the field of automatic wire (tape) laying and forming by a laying machine, and specifically is a corner-aligning hollow flexible self-adaptive pressing roller. Background Art

[0002] Fiber placement technology is one of the most effective composite material automated forming technologies developed recently. Automatic fiber placement technology uses multiple closely arranged narrow fiber strips for placement. Fiber placement technology can realize multi-degree-of-freedom fiber filament (ribbon) placement. With the cooperation of the rotating main shaft, multiple groups of fiber filaments (ribbons) are placed on the core mold. During the placement process, the fiber filaments (ribbons) are heated and softened and compacted with a pressure roller, finally realizing the component forming of the fiber filaments (ribbons).

[0003] During the placement process, the pressure roller often cannot fit the mold surface well, the contact point area of ​​the pressure roller is small or interferes with the surface features, resulting in internal gaps in the fiber filaments (ribbons) and distortion of the fiber filaments (ribbons), which seriously affects the molding quality of the component. Utility Model Content

[0004] In view of the above problems, the utility model provides a rotating centering hollow flexible adaptive pressure roller. By utilizing the adaptiveness of the rotating pressure roller and the mold surface, the contact area and pressure with the fiber filament (ribbon) are maximized, the molding quality of the component is improved, manual intervention is reduced, and production efficiency is improved. In addition, it is more adaptable to laying high curvature and complex-shaped surfaces, and the application range is wider and more flexible.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an angular self-aligning hollow flexible adaptive pressure roller, comprising a connecting bracket and a mold, the connecting bracket is designed in an L-shaped structure, the front end surface of the connecting bracket is provided with a movable plate, the movable plate and the connecting bracket are rotatably connected by a rotating shaft screw, the left and right sides of the front end of the movable plate are fixedly installed with fixed side plates, a pressure roller is arranged between the two fixed side plates, the front end surface of the movable plate is located at the side of the fixed side plate and a positioning pin is arranged, the pressure roller and the fixed side plate are connected by an installation shaft rod, and the side of the front end of the fixed side plate is provided with a threaded pin;

[0006] The mold is designed to be an arc-shaped structure, and fiber filaments are arranged on the surface of the mold.

[0007] Preferably, a connecting slot is provided on the front side of the lower end of the fixed side plate, and the threaded pin is threadedly connected to the fixed side plate.

[0008] Preferably, the left and right ends of the mounting shaft rod are adapted to the connecting slots, the mounting shaft rod and the pressure roller are rotatably connected via bearings, and shaft retaining rings are provided on the left and right sides of the bearings.

[0009] Preferably, the surfaces of the left and right ends of the mounting shaft rod are provided with latch holes, and the rear end of the threaded latch extends into the connecting slot and is latch-connected with the latch hole.

[0010] Preferably, a rubber wrapping layer is provided on the surface of the pressure roller, hollow holes are opened in the rubber wrapping layer, and the hollow holes are distributed in a ring array.

[0011] Preferably, positioning grooves are provided on both left and right sides of the front end surface of the connecting bracket, the rear end of the positioning pin extends into the positioning groove and is slidably connected to the positioning groove, and the positioning groove is designed as an arc-shaped structure.

[0012] Preferably, the surface of the mold is designed as a curved structure, and the mold and the fiber filament are closely connected.

[0013] Beneficial Effects

[0014] The utility model provides a corner-aligning hollow flexible adaptive pressure roller. Compared with the prior art, it has the following beneficial effects:

[0015] The angular centering hollow flexible adaptive pressure roller is provided with a rotating shaft screw, a pressure roller and an installation shaft rod, etc. The movable plate is rotatably connected with the rotating shaft screw and the connecting bracket. When the pressure roller is pressed, it can rotate freely to achieve adaptation with the mold surface, ensure the contact area and pressure between the fiber filament (ribbon) and the mold surface, improve the quality of component forming, reduce manual intervention and improve production efficiency. The surface of the pressure roller is provided with a rubber wrapping layer, which is a soft material and has a hollow structure, can produce a large area of ​​elastic deformation, and has a large area of ​​contact with the mold. The fiber filament (ribbon) layer has a stronger density and stronger adaptability to the mold surface. The pressure roller is connected and fixed by the installation shaft rod and the fixed side plate, and is locked by a threaded pin, which is convenient for disassembly and replacement of the pressure roller and improves convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0018] Figure 3 It is an exploded view of the overall structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the mold structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the front view structure of the mold of the present utility model.

[0021] In the figure: 1. connecting bracket; 2. movable plate; 3. rotating shaft screw; 4. fixed side plate; 41. connecting slot; 5. pressure roller; 51. rubber wrapping layer; 6. positioning pin; 61. positioning slide groove; 7. mounting shaft; 71. bearing; 72. pin hole; 73. shaft retaining ring; 8. threaded pin; 9. mold; 10. fiber filament. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: a rotating angle-aligning hollow flexible adaptive pressure roller, comprising a connecting bracket 1 and a mold 9, the connecting bracket 1 is designed in an L-shaped structure, and a movable plate 2 is arranged on the front end surface of the connecting bracket 1, and the movable plate 2 and the connecting bracket 1 are rotatably connected by a rotating shaft screw 3, and fixed side plates 4 are fixedly installed on the left and right sides of the front end of the movable plate 2, and a pressure roller 5 is arranged between the two fixed side plates 4, and a rubber wrapping layer 51 is arranged on the surface of the pressure roller 5, and hollow holes are opened in the rubber wrapping layer 51, and the hollow holes are distributed in a ring array, and the rubber wrapping layer 51 is arranged on the surface of the pressure roller 5, which is made of soft material and has a hollow structure, can produce a large area of ​​elastic deformation, and has a large area of ​​contact with the mold 9, the density of the fiber filament 10 layer is stronger, and at the same time, the adaptability to the surface of the mold 9 is stronger, and the movable plate 2 can be rotated, so that the pressure roller 5 can move freely, which is convenient for adapting to the curved surface of the mold 9;

[0024] The front end surface of the movable plate 2 is located on the side of the fixed side plate 4 and is provided with a positioning pin 6. The left and right sides of the front end surface of the connecting bracket 1 are provided with positioning slots 61. The rear end of the positioning pin 6 extends into the positioning slot 61 and is slidably connected with the positioning slot 61. The positioning slot 61 is designed in an arc-shaped structure. The pressure roller 5 and the fixed side plate 4 are connected by the mounting shaft rod 7. The left and right ends of the mounting shaft rod 7 are adapted to the connecting slot 41. The mounting shaft rod 7 and the pressure roller 5 are rotatably connected through the bearing 71. The surface of the mounting shaft rod 7 is located on the left and right sides of the bearing 71 and is provided with shaft retaining rings 73. When the movable plate 2 is active, the positioning pin 6 is located in the positioning slot 61 and slides to increase stability. The pressure roller 5 is connected to the fixed side plate 4 through the mounting shaft rod 7 and is locked by the threaded latch 8, which is convenient for disassembly and replacement of the pressure roller 5.

[0025] The side of the front end of the fixed side plate 4 is provided with a threaded pin 8, and the front side of the lower end of the fixed side plate 4 is provided with a connecting slot 41. The threaded pin 8 is threadedly connected to the fixed side plate 4, and the surfaces of the left and right ends of the mounting shaft rod 7 are provided with pin holes 72. The rear end of the threaded pin 8 extends into the connecting slot 41 and is connected with the pin hole 72 by a pin. The mold 9 is designed with an arc-shaped structure, and the surface of the mold 9 is provided with fiber filaments 10. The surface of the mold 9 is designed with a curved surface structure. The mold 9 and the fiber filaments 10 are fitted and connected. During installation, the pressing roller 5 is placed between the two fixed side plates 4 so that the two ends of the mounting shaft rod 7 enter the connecting slot 41, and then the threaded pin 8 is installed and connected with the pin hole 72 by a pin to realize the installation and fixation of the pressing roller 5. When the overall pressing roller 5 is in operation, the fiber filaments 10 (belts) are laid by the laying head, and the fiber filaments 10 are fitted on the surface of the mold 9 and pressed by the pressing roller 5 to facilitate the molding of the component.

[0026] During operation, when the fiber laying head is laying the fiber filaments 10 (tapes), the curved surface of the mold 9 changes gently when laying along 90° and 0° of the mold 9, but when laying along 45°, the curved surface changes along the three directions of XYZ, so that the rotating connection between the movable plate 2 and the connecting bracket 1 enables the pressing roller 5 to generate an adaptive angle according to the change of the curved surface, fit the curved surface of the mold 9 to the maximum extent, and press the fiber filaments 10 (tapes) tightly against the surface of the mold 9, so that the actual position of the layer is closer to the theoretical trajectory, and the spacing between the fiber filaments 10 is more uniform. The surface of the layer is uniform, there are no bubbles inside, the fiber filaments 10 (belts) are not twisted along the trajectory direction, and the mechanical properties and appearance of the product are better. The surface of the pressure roller 5 is provided with a rubber wrapping layer 51, which is made of soft material and has a hollow structure, can produce a large area of ​​elastic deformation, and has a large area of ​​contact with the mold 9. The density of the fiber filament 10 layer is stronger, and the adaptability to the surface of the mold 9 is stronger. The pressure roller 5 is connected to the fixed side plate 4 by the mounting shaft 7 and is locked by the threaded pin 8, which is convenient for disassembly and replacement of the pressure roller 5.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A corner-aligning hollow flexible adaptive pressure roller, comprising a connecting bracket (1) and a mold (9), characterized in that: The connecting bracket (1) is designed in an L-shaped structure. A movable plate (2) is arranged on the front end surface of the connecting bracket (1). The movable plate (2) and the connecting bracket (1) are rotatably connected via a rotating shaft screw (3). Fixed side plates (4) are fixedly installed on both the left and right sides of the front end of the movable plate (2). A pressure roller (5) is arranged between the two fixed side plates (4). A positioning pin (6) is arranged on the side of the fixed side plate (4) on the front end surface of the movable plate (2). The pressure roller (5) and the fixed side plate (4) are connected via an installation shaft rod (7). A threaded pin (8) is arranged on the side of the front end of the fixed side plate (4). The mold (9) is designed to be an arc-shaped structure, and fiber filaments (10) are arranged on the surface of the mold (9).

2. The corner-aligning hollow flexible adaptive pressure roller according to claim 1, characterized in that: A connection slot (41) is provided on the front side of the lower end of the fixed side plate (4), and the threaded plug pin (8) is threadedly connected to the fixed side plate (4).

3. The corner-aligning hollow flexible adaptive pressure roller according to claim 2, characterized in that: The left and right ends of the mounting shaft rod (7) are adapted to the connecting slot (41); the mounting shaft rod (7) and the pressure roller (5) are rotatably connected via a bearing (71); and shaft retaining rings (73) are provided on the left and right sides of the bearing (71) on the surface of the mounting shaft rod (7).

4. The corner-aligning hollow flexible adaptive pressure roller according to claim 3 is characterized by: The surfaces of the left and right ends of the mounting shaft rod (7) are both provided with latch holes (72), and the rear end of the threaded latch pin (8) extends into the connecting slot (41) and is latch-connected with the latch holes (72).

5. The corner-aligning hollow flexible adaptive pressure roller according to claim 1, characterized in that: The surface of the pressure roller (5) is provided with a rubber wrapping layer (51), and hollow holes are opened in the rubber wrapping layer (51), and the hollow holes are distributed in a ring array.

6. The corner-aligning hollow flexible adaptive pressure roller according to claim 1, characterized in that: The left and right sides of the front end surface of the connecting bracket (1) are both provided with positioning slots (61), the rear end of the positioning pin (6) extends into the positioning slot (61) and is slidably connected to the positioning slot (61), and the positioning slot (61) is designed to be an arc-shaped structure.

7. The corner-aligning hollow flexible adaptive pressure roller according to claim 1, characterized in that: The surface of the mold (9) is designed with a curved structure, and the mold (9) and the fiber filament (10) are closely connected.

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