CN104424461A - Production method of magnetic head component, magnetic head component, magnetic card magnetic head and magnetic card reader - Google Patents
Production method of magnetic head component, magnetic head component, magnetic card magnetic head and magnetic card reader Download PDFInfo
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- CN104424461A CN104424461A CN201310388426.4A CN201310388426A CN104424461A CN 104424461 A CN104424461 A CN 104424461A CN 201310388426 A CN201310388426 A CN 201310388426A CN 104424461 A CN104424461 A CN 104424461A
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- head stack
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Abstract
The invention provides a production method of a magnetic head component, the magnetic head component, a magnetic card magnetic head and a magnetic card reader. The production method of the magnetic head component comprises the following steps that a plurality of magnetic core components, solenoids and clearance sheets are placed in a die profile cavity; the magnetic core components, the solenoids and the clearance sheets are grouped; the die profile cavity is subjected to injection molding; after cooling is performed, the magnetic head component which integrates the magnetic head components, the solenoids and the clearance sheets on a substrate is obtained. According to the production method of the magnetic head component provided by the invention, the magnetic head component, the solenoids and the clearance sheets serve as inserts and the inserts and the substrate are integrally subjected to injection molding, so that the production process of the magnetic head component is simplified, poor performance of a magnetic head caused by a manual assembling error is effectively reduced, labor is reduced, the labor cost and the production cost are reduced, and the production efficiency of a product is improved.
Description
Technical field
The present invention relates to Magnetographic Technology field, especially, relate to a kind of production method of head stack, head stack, magnetic card magnetic head and magnetic card reader.
Background technology
Magnetic card magnetic head is the critical component of magnetic card machine, and it undertakes the most important transformation of information record and taking-up between system magnetic card.At present, magnetic card magnetic head all has application in all trades and professions: the access magnetic card, attendance checking system, door prison system, fuel loading system, coded lock, subway automatic selling mark bill system etc. of card phone, banking system.
With reference to the structural representation of the magnetic card magnetic head shown in Fig. 1, comprising: some magnetic core groups 12, clamper 11, line bag 13, spacer shims 14, shielding case 15, connection terminal 16.The assemble method of existing magnetic card magnetic head is: magnetic core builds up some magnetic core groups 12, be fixed in the groove of clamper 11 formation, line bag 13 and spacer shims 14 are assemblied in the upper and lower part of clamper 11 respectively, form the head stack of class transformer device structure, then conductively-closed shell 15 entangles, jackscrew is through top wire hole 17 fixations of the side of shielding case, and in shielding case 15, remaining space uses resin filling, line bag 13 is amplified out and exposes connection terminal 16.
Wherein, if using the assembly in shielding case integrally namely as an assembly of magnetic card magnetic head, be called for short head stack in the application, its assembling process is: magnetic core group 12 to be loaded in clamper 11 and to compress; Left and right clamper 11 is relative, and line bag 13 is enclosed within clamper leg, and spacer shims 14 is put in the middle of two clampers 11, and then use jump ring 18 by the clamping of two clampers 11, above-mentioned each assembly is combined, and the head stack after combination as shown in Figure 2.
In the assembly process of the head stack that prior art adopts, most of operation is handwork or semiautomatic working, and artificial participation is more, causes production efficiency not high.And, due to the parts that magnetic core group and clamper are shaping respectively, magnetic core multi-disc stacks, and integral thickness scattered error is larger, make magnetic core group discrete piece, dislocation easily occurring or presses not enter the bad phenomenon such as groove with during magnetic core slot fit on clamper, cause the product yields of magnetic card magnetic head not high.
In a word, the technical matters needing those skilled in the art urgently to solve is exactly: how can reduce manual operation, to enhance productivity, and stops the generation of the bad phenomenon such as magnetic core discrete piece and dislocation in production, improves the yields of magnetic card magnetic head.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of production method of head stack of magnetic card magnetic head, effectively can simplify the production process of head stack, improves the production efficiency of magnetic card magnetic head and reduces production cost.
In order to solve the problem, provide a kind of production method of head stack on the one hand, comprising:
Some magnetic core groups after grouping are placed in mold cavity as inserts together with line bag, spacer shims; Injection moulding is carried out to described mold cavity; After cooling, obtain described magnetic core group, line bag, spacer shims and the integrated head stack of matrix.
Preferably, before described magnetic core group is placed in mold cavity, also comprise: adopt laser welding technology that the magnetic core in described magnetic core group is carried out laser bonding.
Preferably, the production method of described head stack also comprises: adopt side slide to assist described inserts in described mold cavity inner position.
Preferably, whether the production method of described head stack also comprises: adopt optical detection apparatus to detect described inserts and lay in described mold cavity and put in place.
Preferably, whether the production method of described head stack also comprises: detect described inserts by the mode of Mechanical Contact perception and lay in described mold cavity and put in place.
Preferably, the described material carrying out injection moulding employing to mold cavity is the polyphenylene sulfide comprising 60% glass fibre and inorganics.
Corresponding, present invention also offers a kind of head stack, comprising: some magnetic core groups, line bag, the spacer shims of the matrix parcel of integrated injection molding, and from least two connection terminals that described line bag is amplified out.
Preferably, each described magnetic core group by some magnetic cores by laser bonding together.
Preferably, the contour tolerance of the described head stack of integrated injection molding is ± 0.03mm.
Preferably, the magnetic core group in the described head stack of integrated injection molding, the position of related features of line bag are ± 0.02mm.
Preferably, the material of the matrix of described integrated injection molding is polyphenylene sulfide, wherein comprises 60% glass fibre and inorganics.
On the other hand, present invention also offers a kind of magnetic card magnetic head, comprising: the head stack of above-mentioned arbitrary described integrated injection molding and shielding case, described shielding case is enclosed within the outside of described head stack.
Again on the one hand, present invention also offers a kind of magnetic card reader, comprise arbitrary described magnetic card magnetic head.
Compared with prior art, a technical scheme in technique scheme has the following advantages:
The production method of the head stack adopting the preferred embodiment of the present invention to provide, some magnetic core groups, line bag, spacer shims are placed in mold cavity as inserts together and produce head stack by integrated injection molding technology, effectively can reduce the magnetic head performance scattered error brought due to manual setting error, and decrease artificial participation, improve production efficiency.In addition, without the need to producing clamper separately, after moulding, the matrix and the inserts that are equivalent to clamper are closely linked, and also omit pressing process simultaneously, further save manpower and materials, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art magnetic card magnetic head;
Fig. 2 be prior art traditionally clustered operation assembling after head stack;
Fig. 3 is the process flow diagram of head stack production method embodiment one of the present invention;
Fig. 4 is the counterdie die cavity of head stack production method embodiment of the present invention use and the structural representation of right side slide block;
Fig. 5 is the enlarged diagram of part A in Fig. 4;
Fig. 6 is the process flow diagram of head stack production method embodiment two of the present invention;
Fig. 7 is the structural representation of head stack embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
One of core idea of the present invention is, is incorporated into by insert-moulding technique in head stack assembling prioritization scheme, simultaneously in conjunction with automatic technology, improves head stack efficiency of assembling.
So-called insert-molding (insert molding) refers in mould, to load resin by injection after pre-prepd different material inserts, and the material of melting is combined with inserts and solidifies, and makes the shaping engineering method of integration product.Many dissimilar article all can be used as inserts, comprise cable, connector, spring and nut etc.Studding with metal insert in injection-molded finished is to improve the working strength of plastic product and increase the practical application of finished product, as improvement electric conductivity or convenient being connected with other part.In various embodiments of the present invention, magnetic core group be assemblied in together with the line bag between magnetic core group, spacer shims as inserts.
Introduce the production method embodiment of a kind of head stack provided by the invention below, with reference to Fig. 3, show the process flow diagram of the production method embodiment one of head stack of the present invention, comprising:
Step 31, using grouping after some magnetic core groups be positioned in mold cavity as inserts together with line bag, spacer shims;
In step 31, the concrete quantity of magnetic core group is determined by the shape of magnetic core, thickness and product type, and magnetic card magnetic head generally needs the magnetic core group of more than 2, and each magnetic core group is made up of several magnetic core.Particularly, above-mentioned magnetic core group can be welded by several magnetic core.
Above-mentioned mold cavity is made up of upper die and lower die.Because the inserts in the embodiment of the present invention is that different more than one piece is assembled together, then put into mould fixed bit.Therefore, first to ensure the precision of assembling, then consider the locator meams in mould.Compare through overtesting, determine the mode auxiliary positioning adopting side slide in mould, can ensure the size tolerance requirements of injection moulded products, therefore the embodiment of the present invention adopts the mode of side slide to assist the location of inserts.Because those skilled in the art can to predict the structure of upper model cavity by the shape of counterdie die cavity and inserts, again because left and right sides slide block structure is identical, positional symmetry, therefore, mould schematic diagram can omit the structural representation of model cavity and left slider, the only structure of signal counterdie die cavity and right side slide block, as shown in Figure 4.
Fig. 4 shows the counterdie die cavity of embodiment of the present invention employing and the structural representation of right side slide block, comprises counterdie die cavity 41, gate location 42, inserts 43, right side slide block insert 44.Fig. 5 shows the enlarged diagram of the inserts 43 of part A instruction in Fig. 4, and inserts 43 is made up of some magnetic core groups 12, line bag 13, spacer shims 14.Be positioned in counterdie die cavity 41 by assemble sequence when assembling.
In this step 31, the grouping of magnetic core group 12 can be artificial grouping, and the modes such as mechanical touch sense also can be adopted to carry out magnetic core grouping.
The operating process of artificial grouping is: operating personnel adopts the instruments such as tweezers magnetic core group to be clamped, and puts into the rigging position of mold cavity magnetic core group successively.
The concrete operations of step 31 can comprise:
Discharge step: magnetic core group poured in shake dish, shake dish is by resonance, and constantly magnetic core group is sent into discharge guide rail, on two guide rails, magnetic core prescription is to relatively, and at guide rail end, expeller shifts magnetic core group onto rigging position respectively.Line bag by manual emission in material containing frock, along orbit transports to rigging position.Spacer shims material strip carries spacer shims in the mode of punching press material loading, cuts off after to be assembled.
Material loading step: mechanical arm captures magnetic core group, line bag and the spacer shims and inserts that assemble, above along rail moving to counterdie, above-mentioned inserts is put into the inserts fixed bit of mold cavity.
Position detecting step: whether detection inserts is laid and put in place in mold cavity, if so, then continues to perform next-step operation, otherwise reports to the police.
Whether detection inserts lays the mode put in place can adopt optical detection apparatus such as CCD detection system to detect insert locations, and the mode of Mechanical Contact perception also can be adopted to detect insert locations.Wherein, CCD detection system utilizes photoelectricity transformation principle to detect the position of inserts in mold cavity, for ensureing that data acquisition is accurate, and prioritizing selection pixel more than 380,000, sensitivity 2 ~ 3Lux or better CCD, and have good light source around.
Matched moulds step: after insert locations detection is qualified, patrix drives side slide to draw close to centre, utilizes patrix to locate together with three directions inserts with left and right sides slide block insert, ensures the assembly precision of inserts.
Step 32, injection moulding is carried out to mold cavity; This step is above-mentioned insert-molding step.
Step 32 is specially: after completing above-mentioned matched moulds step, carries out injection moulding by gate location 42 pairs of mold cavities.After injection moulding completes, form the matrix of parcel inserts outline, this matrix has but is not limited to the function of clamper in prior art.
Due to function is equivalent to clamper, the material of the matrix of integrated injection molding has the requirement of high mechanical properties, and require that injection temperature can not have impact to the electromagnetic performance of magnetic core group, therefore the embodiment of the present invention has selected PPS-(GF+GB) 60 as injected plastics material.This title material is polyphenylene sulfide, and comprise 60% glass fibre and inorganics, parameter is as follows: pulling strengrth: 140MPa; Bending strength: 215MPa; Forming temperature: 310 DEG C.
After step 33, cooling, obtain the head stack of inserts and matrix integrated injection molding.
After above-mentioned steps completes, unloading manipulator clamps material handle, goes to above discharging slideway and unclamps, and material, dropping on slideway, then slips into rewinding case.
It should be noted that, mold cavity embodiment shown in Fig. 4 is applicable to the integrated injection molding to 4 magnetic core groups, 2 line bags, 1 interspace sheet, only for illustrating the structure of mold cavity, should not be construed as and the quantitative limitation of magnetic core group number is suitable for mold cavity provided by the invention.In addition, the structure of injection mold is not changeless, by change type cavity configuration, die joint position or gate location etc., can mold same product yet.
Visible, adopt the production method embodiment of head stack of the present invention, by the application of head stack integral molding techniques, effectively can reduce the magnetic head performance scattered error brought due to manual setting error, and decrease artificial participation, improve production efficiency.In addition, without the need to producing clamper separately, after moulding, function is equivalent to the matrix of clamper and inserts is closely linked, and also omit pressing process simultaneously, further saves manpower and materials, improve production efficiency.
In addition, present invention also offers the embodiment of another head stack production method, with reference to Fig. 6, show the schematic flow sheet of head stack production method embodiment two of the present invention, comprising:
Magnetic core in magnetic core group is carried out laser bonding by step 61, employing laser welding technology;
CCD optical detection apparatus can be adopted to divide into groups, the position of detection laser welding simultaneously and quality.
Step 62, the magnetic core group after laser bonding is placed in mold cavity as inserts together with line bag, spacer shims;
Are step 63, detection inserts laid and are put in place in mold cavity? if so, perform step 64, if not, then perform step 65;
Step 64, injection moulding is carried out to mold cavity;
Step 65, warning, return step 62, reappose inserts;
After step 66, cooling, obtain inserts and the integrated head stack of matrix.
In above-mentioned steps 63, optical detection apparatus can be adopted whether to lay in mold cavity as CCD detection arrangement monitors inserts and to put in place, also the mode of Mechanical Contact perception can detect inserts and whether lay in mold cavity and put in place.
The embodiment of the present invention two magnetic core added on the basis of embodiment one in the magnetic core group after to grouping carries out the step of laser bonding, effectively stopped magnetic core group the thin and little core combination of injection moulding cause together time the bad phenomenon such as incident discrete piece, dislocation, ensure that the yields that product is desirable.Meanwhile, also add detection inserts before injection step, in mold cavity, whether lay the step put in place, further increase the yields of product.
For aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
The production method of corresponding said head assembly, present invention also offers a kind of head stack, with reference to shown in Fig. 7, this head stack by said head assembly production method embodiment obtain, comprising: inserts be made up of some magnetic core groups, line bag, spacer shims, and above-mentioned inserts integrated injection molding matrix 70 and extend out from line bag expose connection terminal 16.Matrix 70 has the function of clamper in prior art, and matrix is injection moulded products, can adopt polyphenylene sulfide injection mo(u)lding, and above-mentioned polyphenylene sulfide comprises 60% glass fibre and inorganics.The physical dimension tolerance of head stack is ± 0.03mm, without distortion, and impulse-free robustness.The position dimension tolerance of inserts is ± 0.02mm.
Preferably, the magnetic core group in head stack passes through laser bonding together in advance, as inserts and matrix integrated injection molding.
Accordingly, present invention also offers a kind of magnetic card head embodiment, comprise head stack, shielding case and potting resin that above-mentioned any embodiment provides, wherein, said head assembly by magnetic core group, line bag, spacer shims together as inserts and matrix integrated injection molding.The assemble method of this magnetic card magnetic head is: after inserts and matrix integrated injection molding, forms the head stack of class transformer device structure, is then placed in shielding case, jackscrew is through the top wire hole of shielding case side, play fixation, in shielding case, remaining space uses resin filling, exposes connection terminal.
Preferably, the magnetic core group of said head assembly with matrix integrated injection molding before, some magnetic cores in magnetic core group are welded together by laser welding technology, thus the core combination stopping Bao Er little together time the bad phenomenon such as discrete piece, dislocation that easily produces.
Corresponding, the embodiment of the present invention additionally provides a kind of magnetic card reader comprising above-mentioned magnetic card head embodiment.
In a word, at the production method of head stack provided by the invention, head stack, magnetic card magnetic head and magnetic card reader, using magnetic core group, line bag, spacer shims together as inserts by injection molding manner by inserts and matrix integrated injection molding, effectively reduce the phenomenon of the magnetic head performance scattered error brought due to manual setting error, and decrease artificial participation, not only simplify the production technology of magnetic card magnetic head, improve production efficiency, and save human cost and production cost.Magnetic core welds together by preferred employing laser soldering device, ensure that each magnetic core close contact, effectively prevent the dislocation of magnetic core, discrete piece, improve the yields of product.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For product embodiments, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Above to production method, the head stack of a kind of head stack provided by the present invention, comprise the magnetic card magnetic head of this head stack and comprise the magnetic card reader of above-mentioned magnetic card magnetic head, be described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. a production method for head stack, is characterized in that, comprising:
Some magnetic core groups after grouping are placed in mold cavity as inserts together with line bag, spacer shims;
Injection moulding is carried out to described mold cavity;
After cooling, obtain described magnetic core group, line bag, spacer shims and the integrated head stack of matrix.
2. the production method of head stack according to claim 1, is characterized in that, before described magnetic core group is placed in mold cavity, also comprises:
Adopt laser welding technology that the magnetic core in described magnetic core group is carried out laser bonding.
3. the production method of head stack according to claim 1, is characterized in that, also comprises:
Side slide is adopted to assist described inserts in described mold cavity inner position.
4. whether the production method of head stack according to claim 1, is characterized in that, also comprises: adopt optical detection apparatus to detect described inserts and lay in described mold cavity and put in place.
5. the production method of head stack according to claim 1, is characterized in that, also comprises:
Detect described inserts by the mode of Mechanical Contact perception whether to lay in described mold cavity and put in place.
6. according to the production method of the arbitrary described head stack of claim 1 to 5, it is characterized in that, the described material carrying out injection moulding employing to mold cavity is polyphenylene sulfide, and this polyphenylene sulfide comprises 60% glass fibre and inorganics.
7. a head stack, is characterized in that, comprising: some magnetic core groups, line bag, the spacer shims of the matrix parcel of integrated injection molding, from least two connection terminals that described line bag is extended out.
8. head stack according to claim 7, is characterized in that, each described magnetic core group by some magnetic cores by laser bonding together.
9. head stack according to claim 7, is characterized in that, the contour tolerance of the described head stack of integrated injection molding is ± 0.03mm.
10. head stack according to claim 7, is characterized in that, the magnetic core group in the described head stack of integrated injection molding, the position of related features of line bag are ± 0.02mm.
11. according to the arbitrary described head stack of claim 7 to 10, and it is characterized in that, the material of the matrix of described integrated injection molding is polyphenylene sulfide, and this polyphenylene sulfide comprises 60% glass fibre and inorganics.
12. 1 kinds of magnetic card magnetic heads, is characterized in that, comprising: the arbitrary described head stack of claim 7 to 11 and shielding case, described head stack adopts integrated injection molding, and described shielding case is enclosed within the outside of described head stack.
13. 1 kinds of magnetic card readers, is characterized in that, comprise magnetic card magnetic head according to claim 12.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388426.4A CN104424461A (en) | 2013-08-30 | 2013-08-30 | Production method of magnetic head component, magnetic head component, magnetic card magnetic head and magnetic card reader |
| JP2014550190A JPWO2014084192A1 (en) | 2012-11-28 | 2013-11-26 | Method for producing magnetic core module in magnetic head, magnetic core module in magnetic head and magnetic head |
| US14/647,565 US9761251B2 (en) | 2012-11-28 | 2013-11-26 | Method for manufacturing magnetic core module in magnetic head, magnetic core module in magnetic head and magnetic head |
| PCT/JP2013/081716 WO2014084192A1 (en) | 2012-11-28 | 2013-11-26 | Method for manufacturing magnetic core module in magnetic head, magnetic core module in magnetic head and magnetic head |
| US15/667,721 US10083712B2 (en) | 2012-11-28 | 2017-08-03 | Method for manufacturing magnetic core module in magnetic head, magnetic core module in magnetic head and magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388426.4A CN104424461A (en) | 2013-08-30 | 2013-08-30 | Production method of magnetic head component, magnetic head component, magnetic card magnetic head and magnetic card reader |
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| Publication Number | Publication Date |
|---|---|
| CN104424461A true CN104424461A (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388426.4A Pending CN104424461A (en) | 2012-11-28 | 2013-08-30 | Production method of magnetic head component, magnetic head component, magnetic card magnetic head and magnetic card reader |
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| CN (1) | CN104424461A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235210A (en) * | 2015-09-25 | 2016-01-13 | 深圳市博恩实业有限公司 | Electrically conductive composite capable of being printed through 3D printing and 3D printing forming method |
| CN107351310A (en) * | 2017-07-31 | 2017-11-17 | 苏州爱沛达自动化设备有限公司 | A kind of mould feeding testing agency |
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| JPS59121609A (en) * | 1982-12-27 | 1984-07-13 | Tdk Corp | Magnetic head |
| JPH0289604U (en) * | 1988-12-26 | 1990-07-16 | ||
| CN1217530A (en) * | 1997-11-18 | 1999-05-26 | 阿尔卑斯电气株式会社 | Magnetic head |
| CN203157018U (en) * | 2013-01-15 | 2013-08-28 | 北京泰和磁记录制品有限公司 | Magnetic core component for magnetic card magnetic head and magnetic card magnetic head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59121609A (en) * | 1982-12-27 | 1984-07-13 | Tdk Corp | Magnetic head |
| JPH0289604U (en) * | 1988-12-26 | 1990-07-16 | ||
| CN1217530A (en) * | 1997-11-18 | 1999-05-26 | 阿尔卑斯电气株式会社 | Magnetic head |
| CN203157018U (en) * | 2013-01-15 | 2013-08-28 | 北京泰和磁记录制品有限公司 | Magnetic core component for magnetic card magnetic head and magnetic card magnetic head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105235210A (en) * | 2015-09-25 | 2016-01-13 | 深圳市博恩实业有限公司 | Electrically conductive composite capable of being printed through 3D printing and 3D printing forming method |
| CN107351310A (en) * | 2017-07-31 | 2017-11-17 | 苏州爱沛达自动化设备有限公司 | A kind of mould feeding testing agency |
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