A large-width and high-flexibility pressing roller device

Abstract

The present invention provides a large-width and high-flexibility pressure roller device, which includes a helical spring mechanism arranged in parallel. Spherical hinge heads are respectively connected to both sides of the helical spring mechanism arranged in parallel through a spring fixing and tension adjusting mechanism. A flexible rubber sleeve is sleeved on the outer edges of the helical spring mechanism arranged in parallel and the spring fixing and tension adjusting mechanisms on both sides. By using the design scheme of an inner spring and an outer rubber, the present invention greatly improves the flexibility of the pressure roller, enabling it to perfectly fit with the hull. At the same time, fixed and tension adjusting devices are provided at both ends of the pressure roller, which can meet the automatic laying requirements of different-width material tapes.

Description

Technical Field

[0001] The present invention relates to the field of automatic placement of composite materials, and specifically to a large-width and high-flexibility pressure roller device. Background Art

[0002] With the progress of society and the development of technology, the application scope of resin-based carbon fiber composite materials is becoming wider and wider. And the automatic placement technology of carbon fiber composite materials is widely used in fields such as aerospace and equipment forming. Compared with traditional technologies, the automatic placement technology of composite materials can lay composite material components with high quality, high strength and low density. The automatic placement technology of composite materials involves fields such as automatic fiber placement, automatic winding and automatic laminating. No matter which placement technology field, the automatic placement equipment needs a front-end pressure roller to contact the mold, so that the prepreg can be completely attached to the mold. Generally speaking, the pressure rollers required for automatic fiber placement and automatic winding technology equipment are relatively small (the diameter of the pressure roller is dozens of millimeters and the length is about 100 millimeters), and the materials can be divided into polytetrafluoroethylene, rubber, alloy, etc. according to needs.

[0003] However, for the automatic laminating technology, especially for large-scale automatic laminating equipment, taking the hull laminating as an example, the size of an automatic laminating equipment for hull laminating can reach: span 10 meters, height 11 meters (16.5 meters, maximum working state), width 4.5 meters. And the size of the pressure roller can reach a diameter of several hundred millimeters and a length in the range of 1000 millimeters to 1500 millimeters. How to design a large-scale pressure roller that can contact the hull and compact it is very important, but the pressure rollers for large-scale automatic laminating technology with relevant sizes have not been reported yet. Summary of the Invention

[0004] In order to solve the problems of the prior art, the present invention provides a large-width and high-flexibility pressure roller device. By using the design scheme of an inner spring and an outer rubber, the flexibility of the pressure roller is greatly improved, so that it can be perfectly attached to the hull. At the same time, fixed and tension adjustment devices are provided at both ends of the pressure roller, which can meet the automatic laminating requirements of different-width tapes.

[0005] The present invention includes a parallel arrangement of spiral spring mechanisms. Spherical hinge heads are respectively connected to both sides of the parallel arrangement of spiral spring mechanisms through spring fixing and tension adjustment mechanisms. A flexible rubber sleeve is sleeved on the outer edges of the parallel arrangement of spiral spring mechanisms and the spring fixing and tension adjustment mechanisms on both sides.

[0006] Further improvement: The spring fixing and tension adjusting mechanism includes a circular fixing plate and a tension adjuster. The circular fixing plate is sleeved between the outer edge of the tension adjuster and the inner edge of the flexible rubber sleeve, and is used to limit the offset of the parallel arranged spiral spring mechanism in the middle to both sides; the tension adjuster is a circular base servo motor, and the circular base servo motor presses the parallel arranged spiral spring mechanism inward according to requirements to adapt to the change of the coil in the length direction.

[0007] Further improvement: The overall length range of the pressure roller device is 1000mm - 1500mm, the diameter of the pressure roller is 120mm - 150mm, the thickness of the rubber sleeve is 20mm - 40mm, the diameter of the spiral spring is 80mm - 100mm, and the interval of the spiral spring is 40mm - 60mm.

[0008] The beneficial effects of the present invention are as follows:

[0009] 1. By using the design scheme of inner spring and outer rubber, the flexibility of the pressure roller is greatly improved, so that it can perfectly fit with the hull.

[0010] 2. Fixed and tension adjusting devices are provided at both ends of the pressure roller, which can meet the automatic laying requirements of different width material tapes. The circular fixing plate is used to fix the parallel arranged spiral spring mechanism in the middle from offsetting to both sides, while the tension adjuster is a circular base servo motor, which can press the spring inward according to needs to adapt to the change of the coil in the length direction.

[0011] 3. The compaction and laying of wide-width material tapes can be realized on an automatic laying head, which can effectively improve the perfect fitting and compaction of the wide-width material tape and the mold. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0013] Figure 1 The front view of the device of the present invention.

[0014] Figure 2 The sectional view of the device of the present invention.

[0015] Figure 3 The left view of the device of the present invention.

[0016] List of Reference Numerals:

[0017] Left spherical hinge head 1, left spring fixing and tension adjusting mechanism 2, flexible rubber sleeve 3, helical spring mechanism 4, right spring fixing and tension adjusting mechanism 5, right spherical hinge head 6, left circular fixing piece 201, left tension adjuster 202. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Refer to Figures 1 to 2 , a large-width and high-flexibility pressure roller device. The pressure roller mainly includes the left spherical hinge head 1 at its leftmost side. Connected to the left spherical hinge head 1 is the left spring fixing and tension adjusting mechanism 2. Wrapped around the outside of the left spring fixing and tension adjusting mechanism 2 is the overall flexible rubber sleeve 3. Inside the flexible rubber sleeve 3 are the helical spring mechanisms 4 arranged in parallel. Connected to the inside of the right side of the flexible rubber sleeve 3 is the right spring fixing and tension adjusting mechanism 5. Connected to the right side of the right spring fixing and tension adjusting mechanism 5 is the right spherical hinge head 6.

[0020] Refer to Figure 3 , the left spring fixing and tension adjusting mechanism 2 consists of two parts: a left circular fixing piece 201 and a left tension adjuster 202. Specifically, the left circular fixing piece 201 is used to fix the helical spring mechanisms 4 arranged in parallel in the middle from shifting to both sides, while the left tension adjuster 202 is a circular base servo motor that can press the spring inward as needed to adapt to the change in the length direction of the material roll. Similarly, the right spring fixing and tension adjusting mechanism 5 consists of two parts: a right circular fixing piece and a right tension adjuster.

[0021] The dimensions of a specific embodiment of the present invention are as follows: the overall length of the pressure roller device is 1300 mm, the diameter of the pressure roller is 150 mm, the thickness of the rubber sleeve is 30 mm, the diameter of the helical spring is 90 mm, and the interval of the helical spring is 50 mm.

[0022] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the device embodiments, the above description is only the preferred embodiment of the present invention. Since it is basically similar to the method embodiments, the description is relatively simple. For the relevant parts, reference can be made to the partial description of the method embodiments. As described above, the above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. For any person skilled in the art within the technical scope disclosed by the present invention, for those of ordinary skill in the art in this technical field, any changes or substitutions that can be easily thought of without departing from the principle of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A large-width and high-flexibility pressing roller device, characterized in that: It includes a helical spring mechanism arranged in parallel. Spherical hinge heads are respectively connected to both sides of the helical spring mechanism arranged in parallel through spring fixing and tension adjusting mechanisms. A flexible rubber sleeve is sleeved on the outer edges of the helical spring mechanism arranged in parallel and the spring fixing and tension adjusting mechanisms on both sides; the spring fixing and tension adjusting mechanism includes a circular fixing piece and a tension adjuster. The circular fixing piece is sleeved between the outer edge of the tension adjuster and the inner edge of the flexible rubber sleeve and is used to limit the offset of the helical spring mechanism arranged in parallel in the middle to both sides; the tension adjuster is a circular base servo motor, and the circular base servo motor presses the helical spring mechanism arranged in parallel inward; the overall length range of the roller device is 1000 mm - 1500 mm, the roller diameter is 120 mm - 150 mm, the thickness of the rubber sleeve is 20 mm - 40 mm, the diameter of the helical spring is 80 mm - 100 mm, and the interval of the helical springs is 40 mm - 60 mm.

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