JPH06320639A - Production of reticulated member such as filter - Google Patents

Abstract

PURPOSE:To produce a reticulated member such as a filter characterized by that a stitch is fine and the yarn of a net fabric is fine and thick. CONSTITUTION:A pair of mutually openable and closable mold members 1, 2 are provided and a large number of longitudinal grooves 3 are parallelly formed to the contact surface with the mold member 2 of the mold member 1 by wire discharge processing to set the longitudinal grooves 3 to cavities for forming the warp yarns of a net fabric. A large number of lateral grooves 4 are also parallelly formed to the contact surface of the mold member 2 by wire discharge processing to be set to cavities for forming the weft yarns of the net fabric to constitute a mold. The mold members 1, 2 of this mold are clamped and a molten resin is injected into the respective cavities to be solidified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a mesh body such as a filter using resin as a material and a mold.

[0002]

2. Description of the Related Art A conventional method for manufacturing a mesh body such as a filter using a mold is to form a fine groove-shaped cavity for forming a mesh by using a cutting tool on a steel material for the mold, The cavity was filled with molten resin and solidified.

[0003]

The above conventional manufacturing method is
It was difficult to produce a fine mesh net with fine threads. When the width of the yarn is reduced, the thickness is also limited. For example, when the width of the yarn is 0.3 mm, the thickness can be 0.6 mm, but the width is 0.25 mm.
In that case, the limit was 0.3 mm in thickness. Therefore, the present invention can form a fine mesh, and
An object of the present invention is to provide a method for manufacturing a mesh body such as a filter, which can make the thread of the mesh thin and thick.

[0004]

In order to achieve the above object, a method of manufacturing a mesh body such as a filter of the present invention comprises a pair of mold members 1 and 2 which can be opened and closed, and one mold member 1 In the contact surface of the other mold member 2 in the above, a large number of vertical grooves 3 are formed in parallel by wire electric discharge machining to form the vertical grooves 3 as cavities for forming warp threads of the net, and the contact in the other mold member 2 is made. A large number of lateral grooves 4 are also formed in parallel on the surface by wire electric discharge machining to form a mold in which the lateral grooves 4 serve as cavities for forming the weft threads in the net, and the above-mentioned mold members 1 and 2 of this mold are formed. In the closed contact state, the above-mentioned cavities are filled with molten resin and solidified.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 shows one mold member 1 constituting a mold. A large number of thin vertical grooves 3 are provided in parallel on the inner surface of the steel mold member 1, and a thick frame groove 5 is also provided around them. The vertical groove 3 and the frame groove 5 are formed by wire electric discharge machining. Also, another mold member 2 (see FIG. 2) that constitutes a mold together with this mold member 1
In addition, a large number of thin lateral grooves 4 are provided in parallel on the inner surface thereof, and thick frame grooves 6a and 6b are also provided around them. These lateral grooves 4 and frame grooves 6a and 6b are also formed by wire electric discharge machining. The cross-sectional dimensions of the lateral groove 4 and the vertical groove 3 are 0.25 mm in width and 0.
It is 6 mm.

The above mold members 1 and 2 are arranged so that their inner surfaces face each other, and one fixed mold member is movable with respect to the other mold member. It is possible to close the two in contact with each other. In this state, the vertical groove 3, the frame groove 5, the horizontal groove 4 and the frame grooves 6a, 6b are filled with the molten resin, and after cooling and solidifying, the mold members 1 and 2 are separated from each other to solidify the resin. If it sticks out, as shown in FIGS. 3 and 4, it is possible to obtain a flat filter 11 having a mesh 10 made up of warp threads 8 and weft threads 9 intersecting with it in a frame 7.

[0007]

The present invention is as described above, and is provided with a pair of mold members 1 and 2 which can be opened and closed, and one of the mold members 1 has a contact surface with respect to the other mold member 2.
A large number of vertical grooves 3 are formed in parallel by wire electric discharge machining to form the vertical grooves 3 as cavities for forming warp threads in a net, and a large number of lateral grooves 4 are also formed on the contact surface of the other mold member 2 by wire electric discharge machining. Are formed in parallel with each other to form a mold in which the lateral grooves 4 serve as cavities for forming a weft thread in a net, and the mold members 1 and 2 of the mold are brought into a closed contact state to form a molten resin in each of the cavities. By filling and solidifying, the flutes 3 to be cavities for forming warp threads and weft threads of the net by wire electric discharge machining, in particular.
By forming the lateral groove 4 and the lateral groove 4, it is possible to easily manufacture a mesh body such as a filter having a fine mesh and a thin and thick mesh thread.

[Brief description of drawings]

FIG. 1 is a partial perspective view of one mold member that constitutes a mold.

FIG. 2 is a partial cross-sectional view showing a closed state of a pair of mold members.

FIG. 3 is an overall front view of the completed filter.

FIG. 4 is a partially enlarged perspective view of the completed filter.

[Explanation of symbols]

 1 type member 2 type member 3 vertical groove 4 horizontal groove 5 frame groove 6a, 6b frame groove 7 frame 8 warp thread 9 weft thread 10 net cloth 11 filter

Claims (1)

[Claims] 1. A pair of mold members 1, 2 which can be opened and closed to each other, and a large number of vertical grooves 3 are formed on a contact surface of one mold member 1 with respect to the other mold member 2 by wire electric discharge machining.
Are formed in parallel to form the vertical grooves 3 as cavities for forming warp threads in the net, and a large number of horizontal grooves 4 are formed in parallel on the contact surface of the other mold member 2 by wire electric discharge machining. To form a mold for forming a weft yarn in a net, and the mold members 1 and 2 of the mold are brought into a closed contact state to fill each of the cavities with a molten resin for solidification. And a method for manufacturing a mesh such as a filter.