JP4869207B2 - Form - Google Patents

Description

The present invention relates to a form including a magnetic mark magnetized with a predetermined magnetic mark among a predetermined number of magnetic marks to be formed.

  In recent years, for example, after enclosing a form body in a sealed body, it is delivered to individual destinations. Whether the sealed body actually contains a form body for each individual destination, or whether different form bodies are mixed. Have been inspected. It is necessary to surely recognize the form body when inspecting the form body including such a case.

  Conventionally, in order to perform matching of a form encapsulated in a sealing body, it is possible to determine whether the matching is correct or not by attaching a mark or code for matching to the form and recognizing the mark or code. Generally done. Regarding the mark and code for matching attached to such a form, there are some proposed in Patent Document 1 below.

  In Patent Document 1, a reference symbol (bar code) is attached to a sheet, the reference symbol is printed with metal or metal powder ink, and the matching symbol is read by an inspection apparatus using X-ray transmission to perform a matching inspection. It has been proposed. In addition to ink, a technique for fixing toner containing conductive powder has also been proposed.

  However, as proposed in the above-mentioned Patent Document 1, when forming a reference symbol (bar code) on a sheet, variable data can be easily obtained by printing with metal or metal powder-containing ink that can be detected by X-rays. However, if the amount of metal or metal powder contained in the ink has a characteristic upper limit of ink and there are some inclusions on the forming sheet, In some cases, the verification symbol is not recognized or erroneously recognized, and the system using X-rays is expensive.

  On the other hand, a technique for detecting contents with a magnetic material instead of X-rays is proposed in Patent Document 2 below. According to Patent Document 2, ink or paint containing a ferromagnetic powder that causes a sharp magnetization reversal when an alternating magnetic field exceeding the coercive force possessed by itself is applied to the contents stored in the packaging box. It is applied and a detection mark is provided.

  What is proposed in Patent Document 2 is that a generating coil and a detecting coil for applying an alternating magnetic field exceeding the holding force of the ferromagnetic material are arranged on both sides of a detecting mark provided on the contents. Thus, since the detection mark is detected, it is not practical to apply this to the matching of the form body because it may be expensive.

Japanese Patent No. 3098557 JP 2003-285808 A

  In view of the above Patent Documents 1 and 2, the present applicant has conceived that a matching mark is formed of a magnetic material and is detected by a magnetic sensor in a non-contact manner.

  FIG. 6 is an explanatory diagram showing an example of a form that is a premise of the present invention, and FIGS. 7 and 8 are explanatory views of mark detection of the form in FIG. 8A to 8C, the magnetic mark (111A) has a rectangular shape of 8 mm × 3 mm, and a residual magnetic flux of 4000 (G: Gauss) is applied to a magnetic ink having a holding force of 1500 (Oe: unit Oersted). When magnetized at a density, the detection state of the MI sensor (magnetic sensor) manufactured by Aichi Micro Intelligent Co., Ltd. is output at a position 3 mm in height from the sealing body 105 (2.5 V is grounded (GND)). It is shown.

  FIG. 6A shows a form to be enclosed in a sealing body. In FIG. 6A, the continuous form body 101 forms marginal portions 102A and 102B on both sides in the transport direction, and the individual form body 103A. One form body 103 composed of ˜103C is continuous, and is printed on one of the individual form bodies 103 </ b> A to 103 </ b> C with ink mixed with magnetic powder in the mark forming region at one end thereof. Thus, for example, six magnetic marks 111 </ b> A to 111 </ b> F are connected in a direction perpendicular to the transport direction (width direction), and any of the magnetic marks 111 </ b> A to 111 </ b> F is magnetized for each form body 103. In addition, an address, a name, an identification code, and the like are printed at predetermined locations on any of the individual slip forms 103A to 103C.

  In the continuous form body 101, the marginal parts 102A and 102B are removed in one process during conveyance, and the continuous form body 101 is cut into a single form body 103 and bent at a folding line 104 by, for example, Z-folding. As shown in FIG. 6B, such a folded form 103 is enclosed in a sealing body 105, and at this time, the address printed on the window 106 of the sealing body 105, A form 103 is enclosed so that a name, an identification code, and the like are displayed. In this state, the position of a magnetic mark (hereinafter referred to as a magnetic mark) magnetized on any of the magnetic marks 111 </ b> A to 111 </ b> F formed on the form body 103 and the window 106 of the sealing body 105 are exposed. The recognition code is recognized and matching is performed.

  As shown in FIG. 7A, the matching is performed by capturing and recognizing the identification code that is conveyed to the imaging position (not shown) by the conveying means 121 after the sealing step and is exposed from the window 106, and further, the mark detection position. The magnetic mark 111A to 111F is detected by any of the magnetized magnetic marks 111A and 111F detected by the mark detection unit 123 that is transported and arranged, and matching is performed at the recognized identification code and the position of the detected magnetic mark. Is.

  That is, the mark detection unit 123 corresponds to the magnetic marks 111A to 111F of the form 103 enclosed in the conveyed sealing body 105 by the magnetic sensors 131 to 136, respectively. The positions of the magnetic marks are discriminated by detection by 131 to 136. By the way, as shown in FIG. 7B, the magnetized magnetic mark (here, magnetic mark 111A) has the maximum magnetic force (absolute value) in the N extreme portion and the S extreme portion, The magnetic force gradually decreases according to the distance from the end, and the magnetic force is minimized (zero) at the switching point between the N pole and the S pole.

  However, as shown in FIG. 7A, when the form body 103 is conveyed on the conveying means 121 and a so-called flutter occurs in the vertical direction, as shown in FIGS. When the magnetic mark and the magnetic sensor approach each other due to the fluttering, the output value of the magnetic sensor spreads in the direction away from both ends of the magnetic mark, which affects which of the adjacent magnetic marks or magnetic marks is detected. There is a problem that it becomes impossible to discriminate.

Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a form body including a magnetic mark that makes it possible to reliably detect a magnetic body mark magnetized on a transported form body. .

In order to solve the above-mentioned problem, in the invention of claim 1, a plurality of rectangular magnetic marks are formed in a continuous state in a direction perpendicular to the transport direction when transported later. provided as a magnetic mark be magnetized, a form body to detect the magnetic marks by the corresponding magnetic sensor without contact, the magnetic mark, two magnetization directions in the longitudinal direction of the magnetic mark continuous, the magnetization direction of the each other are magnetized in different directions and configured Ru Empire.

  According to a second aspect of the present invention, a non-magnetized region is formed in at least one of both long ends of the magnetic mark magnetized in the two consecutive different magnetization directions.

According to the first aspect of the present invention, a plurality of rectangular magnetic marks are arranged in a direction perpendicular to the transport direction, the two magnetization directions are continuous in the longitudinal direction of the predetermined magnetic marks, and the mutual magnetization directions are set by is magnetized in a direction different from a structure in which a magnetic mark, since the magnetic force is increased are superimposed in successive portions of the two magnetization directions, the distance between the magnetic marks and magnetic sensors on a large For example, even if the magnetic mark and the magnetic sensor approach each other due to vertical fluttering during conveyance, it is possible to avoid that the magnetic mark cannot be distinguished from the adjacent magnetic mark or the magnetic body mark that is not magnetized. Thus, the magnetic mark of the magnetized magnetic mark can be reliably detected.

  According to the invention of claim 2, a non-magnetized region is formed adjacent to the non-magnetized region by forming a non-magnetized region in at least one of both long ends of the magnetic mark magnetized in two consecutive different magnetization directions. Since the magnetic force of the pole is reduced, it is avoided that even if the magnetic mark and the magnetic sensor come close to each other due to the vertical flapping during conveyance, it cannot be distinguished from the adjacent magnetic mark or the magnetic material mark that is not magnetized. Thus, the magnetic mark of the magnetized magnetic mark can be detected more reliably.

Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram showing a part of a form of the present invention. In FIG. 1 (A), for example, a single form body (103B) of a single form 11 (103) as shown in FIG. 6 (A) is shown as a Z-folded piece form (103B). As an example, the magnetic mark (13A to 13F) having a rectangular shape is formed in the end portion of the magnetic mark formation region in a continuous state in a direction perpendicular to the transport direction when it is transported later. The magnetic marks 13A to 13F can be formed by a general printing technique by mixing magnetic powder in printing ink, for example.

  One of the magnetic marks 13A to 13F (here, the magnetic mark 13A) is magnetized by being magnetized, and as shown in FIG. Two magnetization directions are continuous in the longitudinal direction of the magnetic mark 13A, and are magnetized continuously in different directions. That is, both long ends are, for example, N poles, and two S poles are adjacent on the inner side, so that the magnetization directions of the single magnetic mark 13A are different from each other (for magnetization) The magnetic sensor 13 </ b> A detects the magnetic mark 13 </ b> A when the form body 11 is conveyed in the mark detection system described later.

  The magnetic force of the magnetic mark 13A is a value obtained by superimposing each other's magnetic force in the inner poles (S, S) adjacent on the inner side, and in the same pole (N, N) part on both long sides. The value is one by one. For example, when the lengths of two magnetization directions are equally divided, the magnetic force ratio (absolute value) is 0.5 (one end): 1 (center): 0.5 (the other end). In addition, the magnetic force value at the time of magnetizing is determined corresponding to the position of the magnetic sensor to be detected and the vertical fluctuation at the time of conveyance (described in FIG. 4).

  Here, FIG. 2 shows an explanatory diagram of magnetization of the magnetic material mark in FIG. In FIG. 2A, the magnetic recording head 21 has a general structure of an induction type, and a coil 23 is wound around a core 22, and an end portion of the core 22 has a minute gap G. By energizing the coil 23, both ends of the gap G become electrodes 24A (N pole, S pole) and 24B (S pole, N pole) according to the polarity, and the magnetization direction is determined.

  When magnetizing the magnetic mark 13A among the magnetic marks 13A to 13F formed on the form 11 by the magnetic recording head 21 as described above, as shown in FIG. Bipolar electrodes 24A and 24B of the magnetic recording head 21 are provided in the direction perpendicular to the conveying direction of the form 11 (magnetic mark 13A) (FIG. 1A), and perpendicular to the electrodes 24A and 24B. Are passed from the short side of the magnetic mark 13A.

  For example, as shown in FIG. 2B, when the coil 24 is energized with the electrode 24A as the N pole and the electrode 24B as the S pole and the magnetic mark 13A is passed from the short side, the gap G becomes the magnetic substance. When the central portion of the mark 13A is passed, the front half of the magnetic mark 13A is magnetized in the magnetization direction from the N pole to the S pole. In addition, after the front half of the magnetic mark 13A is magnetized, the polarity of the electrodes 24A and 24B is reversed as shown in FIG. A single magnetic mark 13A is magnetized and magnetized in two different magnetization directions as a whole.

  Next, FIG. 3 shows an explanatory view showing a part of the mark detection system when matching the form of the present invention. FIG. 3 shows a part of the mark detection system 31. For example, a mark detection unit 33 is arranged at a predetermined position in the conveyance direction in the conveyance unit 32 for belt conveyance, and the mark detection unit 33 includes the above-described form body 11. The magnetic sensors 34A to 34F corresponding to the magnetic marks 13A to 13F are provided.

  As the magnetic sensors 34A to 34F, for example, MR (magnetoresistive effect) sensors, magnetism using the MI effect (high frequency skin effect) in which the magnetic impedance changes greatly by an external magnetic field when a high frequency current is applied to the magnetosensitive medium. An impedance sensor (MI sensor) can be employed.

  On the other hand, the sealing body 41 is sequentially transported on the transport means 32, and the sealing body 41 is provided with a window 42 and a form body 11 having an individual form body shown in FIG. It is enclosed. As the corresponding positions of the magnetic sensors 34A to 34F with respect to the magnetic marks 13A to 13F, for example, the center positions of the magnetic marks 13A to 13F are made to overlap with the magnetic sensors 34A to 34F in the transport direction.

  FIG. 4 is an explanatory view of magnetic sensor detection of the mark detection system in FIG. In FIG. 4 (A), the magnetic mark (13A) has a rectangular shape of 8 mm × 3 mm, and a magnetic material ink having a holding force of 1500 (Oe) is 4000 (G) +4000 (G) in different magnetization directions at 4 mm: 4 mm. (Both are 1500 (G) or more) When magnetized with a residual magnetic flux density (FIG. 1B), an MI sensor (magnetic) manufactured by Aichi Micro Intelligent Co., Ltd. The detection state of the sensor) is indicated by an output value (V).

  FIGS. 4B and 4C show sensor output values when the magnetic sensor is detected with a shift of 1 mm from the center with respect to the magnetic mark 13A. As shown in the figure, the center of the magnetic mark 13A is shown. It shows that an output value far exceeding both ends was obtained in the vicinity. This means that the detection distance (height) between the magnetic mark and the magnetic sensor can be set large so that the magnetic force is not detected at positions away from both ends of the magnetic mark, and the adjacent magnetic mark is not magnetized. This means that the magnetic mark to be detected can be reliably detected by distinguishing the magnetic mark.

  As described above, since the magnetic force is superimposed and increased in the continuous portion of the two magnetization directions of the magnetic mark 13A, the distance between the magnetic mark and the magnetic sensor can be set large, for example, the upper and lower sides during transportation. Even if the magnetic mark and the magnetic sensor approach each other due to the fluttering in the direction, it is possible to distinguish between adjacent magnetic marks or non-magnetized magnetic marks, and reliably detect the magnetic marks of magnetized magnetic marks Can be made possible. This makes it possible to reduce the size of the magnetic marks, and to place the magnetic marks closer to each other, and to arrange the forms more than the size of the forms to be arranged. It is also possible to increase the amount of identification information for the body.

  In the above embodiment, as a form in which two different magnetization directions are formed for a single magnetic material mark, the center is the same polarity of the S pole, and both long ends are the same polarity of the N pole. However, the same applies to the case where the center is the same polarity of the N pole and the both long ends are the same polarity of the S pole (this is the same in FIG. 5). Further, in the configuration of the present invention, the detection width of the magnetic sensor with respect to the magnetic mark is narrowed. For example, when the form body is displaced in the direction perpendicular to the transport direction in the sealant during transport, This can be dealt with by arranging a plurality of magnetic sensors as a set for the mark (magnetic mark).

  Next, FIG. 5 shows a configuration diagram of another embodiment showing a part of the form of the present invention. FIG. 5A shows a configuration in which non-magnetized regions 13A-1 and 13A-2 are formed at both long ends of a magnetic mark 13A magnetized in two consecutive different magnetization directions. For example, the magnetic mark 13A having a length of 10 mm is set to have a length (or ratio) of 1 (non-magnetized region): 4: 4: 1 (non-magnetized region) from the left end (or right end). Magnetization is the same as in FIG. 2, but can be realized by determining its start time and end position.

  In the non-magnetized regions 13A-1 and 13A-2, as shown in FIGS. 5B and 5C, diffusion of magnetic force (magnetic field) of continuous poles (N poles in FIG. 5A) is as follows. It has a suppressive action and can be reliably distinguished by reducing the influence of the magnetic force on the adjacent magnetic mark (magnetic mark).

  That is, even when the magnetic mark and the magnetic sensor come close to each other due to vertical flapping during conveyance, it is possible to distinguish between adjacent magnetic marks or non-magnetized magnetic marks. The magnetic mark can be detected more reliably. In this case as well, as described above, the size of the magnetic marks can be reduced, and the magnetic marks can be placed closer to each other. It is also possible to increase the amount of identification information for the form.

  Although FIG. 5 shows the case where the non-magnetized regions are formed at both long ends of the magnetic mark, it is sufficient to form only the side adjacent to another magnetic mark (magnetic mark). In the example of FIG. 1A, when the magnetic marks 13A and 13F are magnetic marks, non-magnetized regions are formed only on the magnetic marks (magnetic marks) 13B and 13E side.

  The form body provided with the magnetic body mark of the present invention is suitable when a magnetic body mark detected by a magnetic sensor is formed for matching of the form body.

It is the block diagram which showed a part of the form body of this invention. It is explanatory drawing of the magnetization with respect to the magnetic body mark in FIG. It is explanatory drawing which showed a part of mark detection system at the time of performing the matching of the form body of this invention. It is explanatory drawing of the magnetic sensor detection of the mark detection system in FIG. It is a block diagram of other embodiment which showed a part of form of this invention. It is explanatory drawing of an example of the form body used as the premise of this invention. It is explanatory drawing (1) of the mark detection of the form body in FIG. It is explanatory drawing (2) of the mark detection of the form body in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Form body 12 Form base 13 Magnetic body mark 21 Magnetic recording head 24 Electrode 31 Mark detection system 32 Conveyance means 33 Magnetic body mark detection part 34 Magnetic sensor 41 Sealing body

Claims (2)

A plurality of rectangular magnetic marks are formed in a continuously provided state in the vertical direction with respect to the transport direction when being transported after, equipped with a magnetic mark be magnetized in a predetermined magnetic marks, the magnetic mark Is a form that allows non-contact detection with a corresponding magnetic sensor,
Said magnetic marks, wherein in the longitudinal direction of the magnetic mark two magnetization directions are continuous, form body magnetization direction of the each other, characterized in Tei Rukoto are magnetized in different directions. A form of claim 1 wherein, the form, characterized in that Hichaku magnetized region on at least one of the two rectangular end of the magnetic marks are magnetized in two different magnetization directions of the successive formed The body .

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