JP5312927B2 - Engagement peeling structure between blade and bamboo in bamboo fiber reinforcement manufacturing equipment - Google Patents

Description

  The present invention relates to an engagement and peeling structure between a blade and bamboo in a bamboo fiber reinforcing material manufacturing apparatus.

Conventionally, it is known that bamboo fiber is produced from collected bamboo material and used as a reinforcing material (same as reinforcing fiber) of fiber reinforced plastic (FRP) and other fiber reinforced composite materials (for example, patent documents) See 1, 2 and 3).
JP 2005-161850 Special table 2005-153160 public information JP 2003-155679 A

  Here, hemp fiber, bamboo fiber and other natural fibers are used in place of glass fiber, which is difficult to incinerate, as well as strength as a reinforcing material (comparable to carbon fiber). We are looking for ways to reduce environmental impact.

  However, there is a problem in what form of bamboo fiber can be procured, and it cannot be said that a single fiber is sufficient as a reinforcing material. This is because a fiber bundle sheath having a fiber diameter of about 100 μm and a fiber form of the fiber bundle are also considered in order to leave the binding force between single fibers.

  By the way, bamboo fiber on the market is generally manufactured by applying a mechanical defibration treatment, and the fiber diameter is generally in the millimeter unit exceeding several hundred μm, and its rigidity is broken. In some cases, such a disadvantage occurs.

  The present inventors have developed a defibrating apparatus (including a coarse pulverizing apparatus) that efficiently performs from coarse pulverization to defibration of fiber-containing materials such as waste paper, and composite regenerated molded products using the fiber-containing material as a main raw material. Has been involved in. Of course, bamboo has also been used as a fiber-containing material.

  Under these circumstances, the bamboo having a fiber diameter of several hundreds μm or less, or a millimeter unit exceeding 100 μm, and obtained by physiologically (mechanically) scraping to ensure a fiber length of several millimeters to one hundred millimeters. Fibers and their manufacturing techniques have been requested. The present inventors responded positively to this demand, and promoted research and development, invented this apparatus, and came to an application.

  Therefore, in order to solve the above-mentioned problems, the present invention ensures that the fiber diameter and the fiber length are adjusted to predetermined dimensions, and the cutting and cutting structure between the blade and the bamboo in the bamboo fiber reinforcing material manufacturing apparatus having the optimum form as the reinforcing fiber. Is to develop and provide

As a means for solving this problem, a bamboo fiber scraping blade having a predetermined length adapted to the optimum bamboo length as a reinforcing fiber rotated by a rotating means in the apparatus main body, and a rotating shaft portion of the blade It consists of a guide member that maintains a predetermined interval in the left-right symmetric position and that is provided with a guide portion at a position shifted downward by a predetermined dimension so that the cutting depth of the bamboo can be adjusted. It is characterized by keeping the central axis of the bamboo parallel and perpendicular to the rotation axis of the fiber scraping blade, applying the outer peripheral surface of the bamboo to the guide part of the guide member, and scraping while pressing. is there.

  As an effect of the present invention, a bamboo fiber scraping blade having a predetermined length adapted to the optimum bamboo length as a reinforcing fiber, which is driven by a rotating means in the apparatus main body, and a bilaterally symmetrical position of the rotary shaft portion of the blade. It consists of a guide member that is provided with guide portions at positions that are kept at predetermined intervals and shifted downward by a predetermined dimension so that the bamboo cutting depth can be adjusted. The fiber reinforced type is characterized by keeping the central axis of the bamboo parallel and perpendicular to the rotation axis, and applying the outer peripheral surface of the bamboo to the guide part of the guide member and scraping it while pressing. As a reinforcing material for the composite material, an exfoliated bamboo fiber having an optimum fiber diameter and fiber length can be obtained. Moreover, since the hot water treatment and / or the sputum water washing treatment is performed after mechanically scraping, it is possible to eliminate as much as possible the deposits (heavy fibers) that cause rigidity on the fiber surface. In particular, it is useful as a reinforcing material for fiber reinforced plastic (FRP).

  As the best mode of the present invention, in the above-described configuration, the optimal scraped bamboo fiber is a single fiber having a cross-sectional diameter of 1 mm or less and a fiber length of several millimeters to hundred millimeters, or a split fiber bundle (fiber bundle). Same as tube bundle sheath or vascular bundle).

  Moreover, there is a case where it does not matter before and after the water washing process and the hot water treatment process. Moreover, a hot water treatment process may be abbreviate | omitted, and it may transfer to a drying treatment process through only the water washing process process. This is because there is no problem as long as a desired cleanliness is ensured for the fiber surface by the degree of water washing treatment (treatment effect).

  Therefore, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. In the bamboo fiber reinforced material manufacturing apparatus, the apparatus body (S) is rotated by the rotating means (M) and is optimal as a reinforcing fiber. Maintaining a predetermined interval (X) at the left and right symmetrical positions of the bamboo fiber cutting blade (1) having a predetermined length (L) adapted to the length of the bamboo (B) and the rotating shaft (1a) of the blade, In addition, guide members (2) provided with guide portions (2a) and (2'a) at positions shifted downward by a predetermined dimension (Y) so that the cutting depth (T) of bamboo (B) can be adjusted. (2 '), and when cutting bamboo fiber, keep the central axis (Ba) of the bamboo (B) parallel to the rotation axis (1a) of the bamboo fiber cutting blade (1) and on a vertical line. The outer peripheral surface (Bb) of bamboo is applied to the guide portions (2a) and (2'a) of the guide members (2) and (2 '), and is scraped while being pressed. It is comprised from the engagement peeling structure of the cutter and bamboo in the bamboo fiber reinforcement manufacturing apparatus.

  Next, the outline of the engagement and peeling structure between the cutter (1) and the bamboo (B) of the bamboo fiber reinforcing material manufacturing apparatus main body (S) according to the present invention will be described. As shown in FIG. (1) is connected to a rotating means (M) such as a motor and rotates around the rotating shaft (1a). And the guide part (2a) (2 ') is maintained at a predetermined distance (Y) below the predetermined dimension (Y) at a position left and right symmetrically about the rotation shaft part of the bamboo fiber cutting blade (1). a) is provided, and guide members (2) and (2 ′) are provided which are provided so that the bamboo scraping depth (T) can be adjusted.

  Then, as shown in FIG. 2, the rotation direction of the bamboo fiber cutting blade (1) and the rotation direction of the bamboo (B) rotate in opposite directions, and when the bamboo fiber is scraped, the center of the bamboo (B) The outer peripheral surface (Bb) of the bamboo (B) is guided to the guide member (2) (2) while keeping the shaft (Ba) parallel to the rotating shaft (1a) of the bamboo fiber cutting blade (1) and on the vertical line. ') Is applied to the guide portions (2a) and (2'a), and is scraped off while being pressed.

  3 (A) and 3 (B) show a bamboo fiber cutting blade (1), (A) is a front view, and (B) is a right side view. Further, the length of the bamboo fiber scraping blade (1) is set to a dimension that matches the optimum fiber length as a reinforcing material for the fiber-reinforced composite material.

  The cut-and-cut engagement structure between the blade and bamboo in the bamboo fiber reinforcing material manufacturing apparatus of the present invention is to obtain bamboo fibers having an optimum fiber form as a reinforcing material for a fiber reinforced composite material, and in particular, fiber reinforced plastic (FRP). ) Fiber form (including properties) useful as a reinforcing material can be realized, and it is useful as a development technology that meets the demands of the industry and contributes to the development of new materials. Have potential.

1 shows an embodiment of the present invention and is a front view of a bamboo fiber reinforcing material manufacturing apparatus. FIG. 1 is an enlarged detail view of a scraped portion of a bamboo fiber reinforcing material manufacturing apparatus according to an embodiment of the present invention. One Example of this invention is shown, (A) of the cutting tool for bamboo fiber removal is a front view, (B) is a right view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bamboo fiber cutting blade 1a Rotating shaft part 2a Guide member 2 'Guide member 2a Guide part 2'a Guide part B Bambo Ba Bamboo center axis Bb Bamboo outer peripheral surface M Rotating means X Predetermined distance Y Predetermined dimension

Claims (1)

In the bamboo fiber reinforcement manufacturing equipment,
Bamboo fiber cutting blade having a predetermined length (L) adapted to the length of bamboo (B) optimum as a reinforcing fiber, provided with a rotating means (M) in the apparatus main body (S), driven and rotated by the rotating means. (1) and
Maintaining a predetermined distance (X) to the left and right symmetrical positions of the rotating shaft portion of the tool (1a), and, in a position displaced a predetermined dimension (Y) below the predetermined spacing (X), denudation depth of bamboo (B) The guide portion (2a) (2'a) for adjusting the thickness (T), and guide members (2) (2 ') formed at the respective distal ends of these guide portions,
At the time of bamboo fiber stripping, the central axis (Ba) of the bamboo (B) is kept parallel and on the vertical line with respect to the rotating shaft portion (1a) of the bamboo fiber stripping blade (1),
The center position of the outer peripheral surface (Bb) of the bamboo is respectively applied to the guide portions (2a) and (2'a) of the guide members (2) and (2 '), and the bamboo fiber cutting blade (1) is scraped off while pressing. An engagement scraping structure between a blade and bamboo in a bamboo fiber reinforced material manufacturing apparatus.