TWI437559B - A magnetic band having magnetic regions of position reference signals and using jigs - Google Patents

Description

Magnetic tape with position reference signal magnetic area and processing method thereof and processing tool used therefor

The present invention relates to techniques for linear position measurement using magnetic field variations, and more particularly to a magnetic tape having a position reference signal magnetic region and a method of processing the same, and a processing tool therefor.

According to the technique of position increment and magnetic field change sensing, the magnetic tape technique for linear position measurement is widely used on a position measuring instrument platform to provide a magnetic field change tape. Generally, In a continuous strip of a strip of a suitable length, a magnetic pole is disposed on one side surface of the strip in sequence, whereby the sensing element is displaced along the long axis of the strip. , that is, the change of the magnetic field is sensed as the position changes, but since it is necessary to provide a regular magnetic field change, the magnetic pole distance on the magnetic tape is constant, so that the magnetic tape cannot provide a proper sensing reference point. As a reference signal for the position, as the origin position, limit position or other similar position.

In order to improve the deficiencies of the above-mentioned conventional techniques, the technical content as shown in the first figure is disclosed in the conventional technology, specifically, it is attached to a continuously extending belt body (1) to form a regular optical signal area. The optical signal is read by the optical signal to obtain a corresponding signal, and the independent magnet element (2) is disposed on one side of the strip body (1) to form a magnetic region for providing a reference position signal; or as shown in the second figure. The technical content shown forms a continuously equidistantly arranged position signal area (6) and a discontinuous equidistantly arranged reference signal area (7) on the same side surface of the magnetic tape (3) having a regular magnetic field change. And each of the position signal areas and the reference signal area have the same magnetic pole width, so as to provide the sensing element sensing purpose; accordingly, the signal source of the reference position can be provided through the reference signal magnetic area as the origin Position, extreme position or other similar position.

The prior art has been able to achieve the calibration reference point for providing reference signals, but the technology is not ideal. Specifically, in the conventional technology of additional magnets, it is necessary to provide an independent magnetic field by additionally mounting magnet elements. The sensing component is sensed, it is not convenient to set up, and there is no flexibility to make different changes according to actual needs. After the magnetic tape is processed by the barrier film, the position signal area and the reference with the same magnetic pole width can be obtained. The signal areas are respectively formed on the same side surface, and the 俾 is provided with two different signal sources by the difference in the spatial position. However, since the system needs to provide the regular magnetic domain of the magnetic tape, the space is formed through the barrier sheet. The location has a different reference signal area, so it can only be carried out in the manufacturing end of the tape, and it is not possible to set the reference point of the reference position according to the actual needs of the user at the use end of the tape. Similarly, it is also lacking. Flexibility to respond to the actual needs.

Accordingly, it is a primary object of the present invention to provide a magnetic tape having a position reference signal magnetic region which is capable of forming a magnetic field for a reference position signal at any position on the magnetic tape in response to the use conditions of the magnetic tape.

Another object of the present invention is to provide a method for forming a position reference signal magnetic region on a magnetic tape, which allows the user to set a reference reference point and form a magnetic region for providing a reference signal at any position on the magnetic tape. .

Another object of the present invention is to provide a processing tool for forming a position reference signal magnetic field on a magnetic tape, which is convenient for the user to set the reference point of the reference signal.

In order to achieve the above object, in the technology provided by the present invention, a magnetic tape having a position reference signal magnetic domain is disclosed, which comprises an elongated strip; a plurality of main magnetic regions are equal in magnetic pole width. The ground is disposed on the side belt surface of the belt body along the long axis direction of the belt body; at least one reference signal magnetic region is disposed on the belt side surface of the belt body and adjacent to the corresponding main magnetic field And the magnetic pole width of the reference signal magnetic zone is different from the magnetic pole width of each of the main magnetic regions.

To obtain the magnetic tape having the position reference signal magnetic region, the present invention also provides a processing method for forming a position reference signal magnetic region on a magnetic tape, the steps of which include:

a. Take a long tape of a majority of the main magnetic width of the main pole width.

b. Select at least one reference point in the long axis direction of the tape.

c. taking a magnetizing member adjacent to a side belt surface of the magnetic tape at a position of the reference point for magnetizing, and covering one of the main magnetic regions for changing a magnetic pole of a portion of the main magnetic domain covered A single magnetic pole is formed to form a reference signal magnetic region having a magnetic pole width different from the magnetic pole width of the main magnetic region.

d. Remove the magnetized piece.

In addition, in order to facilitate the implementation of the step c, the present invention further provides a processing tool for forming a position reference signal magnetic field on a magnetic tape, which comprises a positioning body having a body portion and an opening downward. a sliding portion is disposed on the bottom end surface of the body portion and extends linearly to both end edges of the bottom end surface of the body portion; a sliding portion has a sliding body disposed on the body portion and is capable of being in a position Reciprocating displacement between the lower position and the upper position, when the lower end position is adjacent to the open end of the positioning groove, and when located at the upper position, the bottom end surface is away from the positioning groove An open end; a magnet is fixed on the bottom end surface of the sliding body, and is movable between the upper and lower positions according to the displacement of the sliding body.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings, wherein:

The first figure is a perspective view of a conventional technique.

The second figure is a perspective view of another conventional technique.

The third figure is a perspective view of a magnetic tape having a position reference signal magnetic domain in a preferred embodiment of the present invention.

Figure 4 is a perspective view of a processing tool for forming a position reference signal magnetic field on a magnetic tape in accordance with a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of a preferred embodiment of the present invention taken along the line sec of Figure 5-5.

Figure 6 is a schematic view showing a processing method for forming a position reference signal magnetic region on a magnetic tape in a preferred embodiment of the present invention, showing a state before the position reference signal magnetic region is formed.

FIG. 7 is a schematic diagram showing a processing method for forming a position reference signal magnetic region on a magnetic tape according to a preferred embodiment of the present invention, showing a state in which the position reference signal magnetic domain is formed.

Figure 8 is a schematic view showing a processing method for forming a position reference signal magnetic region on a magnetic tape in a preferred embodiment of the present invention, showing a state after the position reference signal magnetic region is formed.

Referring to the third to sixth embodiments, a preferred embodiment of the present invention discloses a magnetic tape (10) having a position reference signal magnetic zone, and a magnetic tape is implemented by using a processing tool (20). The specific position is applied to form a position reference signal magnetic domain to form a processing method for the magnetic tape (10) having the position reference signal magnetic region.

First, referring to the third figure, the magnetic tape (10) having the position reference signal magnetic domain includes a strip-shaped strip body (11), and most of the main magnetic domains (12) are connected to each other with equal magnetic poles. The width is sequentially disposed on one side of the belt body (11) along the long axis direction of the belt body (11), and as shown in the third figure, each of the main magnetic regions is (4) The fourth main magnetic zone (12 ' ) is shorter in length from the magnetic pole direction than the length of the other main magnetic zone (12 " ), and a reference signal magnetic zone (13) is disposed in the strip (11) one of the side belt faces, and one side is adjacent to one of the four main magnetic regions (12 ' ) having the shorter length, so that the magnetic pole width of the reference signal magnetic region (13) is greater than The magnetic pole width of each of the main magnetic regions (12) is provided to provide a magnetic signal source of different periods to form a specific sensing reference point, which can be used as an origin position, an extreme position or other phase as needed. The reference position of the class is used.

Referring to the fourth and fifth figures, the processing tool (20) is mainly composed of a (21), a sliding portion (22) and a magnetizing member (23), wherein:

The seat (21) has a block-shaped body portion (211), and a positioning groove (212) with an opening downward is recessed on the bottom end surface of the body portion (211) and extends linearly to the body. a sliding groove (213) extends vertically downward from a top end surface of the body portion (211) and communicates with the positioning groove (212), and is limited to a side edge of the bottom end surface of the portion (211). The strip hole (214) is disposed on the front side plate body (2111) of the body portion (211) and is in vertical communication with the chute (213).

The sliding portion (22) has a long strip-shaped sliding body (221) having a cross section complementary to the sliding groove (213), and is slidably disposed in the sliding groove (213), and is capable of being in a position and a position. Between the positional positions, the upper end is reciprocally displaced, and when located at the lower position, the bottom end is adjacent to the open end of the positioning groove (213), and when located at the upper position, the bottom end is away from the positioning groove ( 213) an open end, a limit bolt (222) is disposed in the limit strip hole (214), and is fixed at one end to the sliding body (221) for limiting the sliding body (221) Displacement stroke.

The magnetizing member (23) is a piece of magnet, which is fixedly attached to the bottom end surface of the sliding body (221) by one side surface, so as to be displaced with the sliding body (221). Actuate.

Continuing to refer to FIG. 6 to FIG. 8 , a position reference signal magnetic domain is formed at a specific position of a magnetized magnetic tape by the processing tool ( 20 ) to form the position reference signal magnetic region. When the tape (10) is processed, the steps include:

a. A magnetized strip-like strip (11) having a plurality of other pole width main magnetic regions (12) is used.

b. Select a reference point in the direction of the long axis of the strip (11).

c. accommodating the strip body (11) with the open end of the positioning groove (212) of the processing tool (20), and having a side belt surface of each of the main magnetic regions (12) facing the sliding body (221) .

d. sliding the processing tool (20) along the long axis direction of the belt body (11) to correct the position of the sliding body (221), so that the bottom side surface of the magnetizing member (23) is located at the selected one. Above the benchmark (as shown in Figure 6).

e. moving the slider (221) from the upper position to the lower position, so that the magnetizing member (23) approaches the upper edge of the strip (11) at the selected reference point position, and covers the fourth Each of the main magnetic regions (12 ' ) (as shown in the seventh and eighth figures) is used to magnetize the covered regions to change the magnetic pole width of the portion of the main magnetic region covered. And forming a position reference signal magnetic zone (13) of a single magnetic pole, and the magnetic pole width of the position reference signal magnetic zone (13) is greater than the magnetic pole width of each of the main magnetic zones (12).

f. moving the slider (221) from the lower position to the upper position and removing the processing tool (20) from the belt (11).

With the above technique, the position reference signal magnetic region (13) can be formed at an appropriate position on the magnetized magnetic tape, and it is not necessary to provide an independent magnetic field signal source by adding additional magnetic components as in the prior art, in other words, The technical content provided by the present invention is to set the position reference signal magnetic region (13) at the use end, and does not need to be performed on the manufacturing end of the magnetic tape magnetization, so that it is not only convenient for the use end to actually work. The location of the location reference signal magnetic zone (13) is selected by the user, and the technology of the processing tool (20) is more convenient for the user to define the reference point or Extreme position, improve the convenience of implementation.

(1). . . Belt body

(2). . . Magnet element

(3). . . magnetic tape

(6). . . Location signal area

(7). . . Reference signal area

(10). . . Tape with position reference signal magnetic zone

(11). . . Belt body

(12)(12 ' )(12 " )...main magnetic zone

(13). . . Reference signal

(20). . . Processing tool

(twenty one). . . seat

(211). . . Body

(212). . . Positioning slot

(213). . . Chute

(214). . . Limit bar hole

(2111). . . Front side plate

(twenty two). . . Sliding part

(221). . . Sliding body

(222). . . Limit bolt

(twenty three). . . Magnetizing part

The first figure is a perspective view of a conventional technique.

The second figure is a perspective view of another conventional technique.

The third figure is a perspective view of a magnetic tape having a position reference signal magnetic domain in a preferred embodiment of the present invention.

Figure 4 is a perspective view of a processing tool for forming a position reference signal magnetic field on a magnetic tape in accordance with a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of a preferred embodiment of the present invention taken along the line sec of Figure 5-5.

Figure 6 is a schematic view showing a processing method for forming a position reference signal magnetic region on a magnetic tape in a preferred embodiment of the present invention, showing a state before the position reference signal magnetic region is formed.

FIG. 7 is a schematic diagram showing a processing method for forming a position reference signal magnetic region on a magnetic tape according to a preferred embodiment of the present invention, showing a state in which the position reference signal magnetic domain is formed.

Figure 8 is a schematic view showing a processing method for forming a position reference signal magnetic region on a magnetic tape in a preferred embodiment of the present invention, showing a state after the position reference signal magnetic region is formed.

(10). . . Tape with position reference signal magnetic zone

(11). . . Belt body

(12)(12 ' )(12 " )...main magnetic zone

(13). . . Reference signal

Claims (7)

A processing method for forming a position reference signal magnetic region on a magnetic tape, comprising the steps of: a. taking a long strip of a plurality of magnetic pole width main magnetic regions; b. selecting at least a long axis direction of the magnetic tape a reference point; c. taking a magnetizing member adjacent to a side of the tape at a position of the reference point for magnetizing and covering one of the main magnetic regions for changing the covered main magnetic region The magnetic pole of the portion has a single magnetic pole, so that a reference signal magnetic region whose magnetic pole width is different from the magnetic pole width of the main magnetic region is formed; d. the magnetic charging member is removed. The processing method for forming a position reference signal magnetic region on a magnetic tape according to the first aspect of the patent application, wherein the magnetic charging member taken in the step c is a permanent magnet. The method for processing a position reference signal magnetic field on a magnetic tape according to the first aspect of the patent application, wherein in the step c, the magnetization member covers one of each of the at least two main magnetic regions, and the reference signal is made. The magnetic pole width of the magnetic zone is greater than the magnetic pole width of the other uncovered main magnetic zone. A processing tool for forming a position reference signal magnetic field on a magnetic tape comprises: a body having a body portion and an opening groove facing downwardly, recessed on a bottom side end surface of the body portion and extending linearly to the bottom of the body portion a sliding end portion having a sliding body disposed on the body portion and reciprocally movable up and down between an upper position and a lower position, when located at the lower position The bottom end surface is adjacent to the open end of the positioning groove, and when the upper end position is located, the bottom end surface is away from the open end of the positioning groove; a magnet is fixed to the bottom end surface of the sliding body Upper, and with the displacement of the slider Move between each of the upper and lower positions. The processing tool for forming a position reference signal magnetic region on a magnetic tape according to the fourth aspect of the patent application, wherein the magnetization system is a sheet magnet, and the top side surface is attached to the bottom end surface of the sliding body. A processing tool for forming a position reference signal magnetic field on a magnetic tape according to the fourth aspect of the patent application, wherein the base further includes a sliding slot extending downward from the top end surface of the body and the positioning groove The sliding body is connected to the sliding body, so that the sliding body is vertically displaced in the sliding groove. The processing tool for forming a position reference signal magnetic field on a magnetic tape according to the sixth aspect of the patent application, wherein the seat system further comprises a limiting hole, which is disposed on one side of the body and is coupled to the chute The sliding portion further includes a limiting bolt that is disposed in the limiting hole and fixed to the sliding body at one end for limiting the displacement stroke of the sliding body.