Background technology
Card puncher is on a kind of tape that data can be written to a card, read the data on this tape and pattern is printed on a kind of electronic installation on this card, in recent years, be widely used on the individual documentary evidence, for example employee's permit identification and individual medical record etc.
The operation of card puncher outlines as follows: after a card enters a card puncher, magnetic head in the card puncher is written to data on the tape of card earlier, afterwards, magnetic head reads the data on the tape, at last, processor in the card puncher the contrast data that magnetic head read with before be written to data on the tape and conformed to after, the interior thermal print head of card puncher is printed to a predetermined pattern on the card.
In above-mentioned operation,, could correctly be written to data on the tape or correctly read data on the tape because magnetic head must touch tape constantly.Therefore, in order to ensure magnetic head when data being written to tape or reading data on the tape, can touch tape all the time, known card puncher comprises a fixed shell fragment mechanism, with when card passes through magnetic head, guarantee that magnetic head can touch card all the time, magnetic head just can touch tape constantly.Yet so, magnetic head can have the short life-span because of touching card all the time.In addition, thermal print head also can be because of contacting between magnetic head and card forms interference effect, thereby predetermined pattern clearly can not be printed on the card.
In order to address the above problem, thermal print head and magnetic head in the known card puncher are far apart, and when guaranteeing that thermal print head is printed to predetermined pattern on the card, card has really left and can not touch magnetic head.Yet the size of known like this card puncher also enlarges thereupon.
Summary of the invention
Therefore main purpose of the present invention is to provide a kind of cam that uses that the magnetic head bearing is pushed away toward the card puncher that leaves the direction of pinch roller, to solve the shortcoming of prior art.
The object of the present invention is achieved like this, promptly provide a kind of cam that uses that the magnetic head bearing is pushed away toward the card puncher that leaves the direction of pinch roller, it comprises: a card conveyer, be used for a card is transmitted on the card transfer path reciprocating typely, described card is provided with a tape, is used for storage data; One magnetic head bearing is arranged on first side of described card transfer path; One magnetic head is located on the described magnetic head bearing, be used for described card by the time, be written to data on the tape or read the data that are stored on the described tape; One pinch roller bearing is arranged on second side of described card transfer path; One pinch roller is arranged on second side of described card transfer path and is arranged on the described pinch roller bearing, be used for described card by the time, calculate length by the card of described magnetic head; One cam, be used for after described magnetic head reads the data that are stored in the described tape, described magnetic head bearing is pushed away toward leaving the direction of described pinch roller, and described cam also pushes away described pinch roller bearing toward the direction of leaving described magnetic head described magnetic head bearing being pushed away when leaving the direction of described pinch roller; And a thermal print head, be arranged at by the described card transfer path, be used for described magnetic head bearing being pushed away after the direction of leaving described pinch roller at described cam, pattern is printed on the described card.
Card puncher of the present invention comprises a card conveyer, is used for a card is transmitted on the card transfer path reciprocating typely, and card is provided with a tape, is used for storage data; One magnetic head bearing is arranged on first side of card transfer path; One magnetic head is located on the magnetic head bearing, be used for card by the time, be written to data on the tape or read the data that are stored on the tape; One pinch roller (Encoder) is arranged on second side of card transfer path, be used for card by the time, calculate length by the card of magnetic head; One cam is used for after magnetic head reads the data that are stored in the tape, and the magnetic head bearing is pushed away toward the direction of leaving pinch roller; And a thermal print head, be arranged on by the card transfer path, be used for the magnetic head bearing being pushed away after the direction of leaving pinch roller at cam, pattern is printed on the card.
Another object of the present invention is to provide a kind of cam that uses that the pinch roller bearing is pushed away toward the card puncher that leaves the direction of magnetic head, to solve the shortcoming of prior art.
Another card puncher of the present invention comprises a card conveyer, is used for a card is transmitted on the card transfer path reciprocating typely, and card is provided with a tape, is used for storage data; One magnetic head is arranged on first side of card transfer path, be used for card by the time, be written to data on the tape or read the data that are stored on the tape; One pinch roller bearing is arranged on second side of card transfer path; One pinch roller is arranged on the pinch roller bearing, is used for calculating the length by the card of magnetic head when card passes through; One cam is used for after magnetic head reads the data that are stored in the tape, and the pinch roller bearing is pushed away toward the direction of leaving magnetic head; And a thermal print head, be arranged at by the card transfer path, be used for the pinch roller bearing being pushed away after the direction of leaving magnetic head at cam, pattern is printed on the card.
The specific embodiment
Whether card puncher of the present invention is still need operate controlling the rotation of a cam according to a magnetic head, and controls the position of a magnetic head bearing, a pinch roller bearing and an idle pulley bearing then, and limits a pressing position and a separation point position respectively.Specifically, when the magnetic head of card puncher is being written to data on the tape of one card or reading data on the tape, cam rotates to a cam pressing position, and but the cam control head bearing, pinch roller bearing and the idle pulley bearing that rotate to cam pressing position are positioned at its other pressing position, so that card is pressure bonded to magnetic head.Like this, magnetic head just touches tape sustainably, to be written to data on the tape or to read data on the tape.On the other hand, when the thermal print head of card puncher is printed on a predetermined pattern on the card, that is to say, when magnetic head need not operate, cam rotates to a cam separation point position, but and rotate to the cam control head bearing of cam separation point position, the pinch roller bearing, and the idle pulley bearing all is positioned at its other separation point position, in this simultaneously, magnetic head on the magnetic head bearing, pinch roller on the pinch roller bearing, and the idle pulley on the idle pulley bearing can not touch card, like this, thermal print head just can clearly be printed to predetermined pattern on the card under the non-existent situation of interference effect.
Consult Fig. 1 to Fig. 4, Fig. 1 and Fig. 2 are the schematic diagram of a card puncher 10 in the preferred embodiments of the present invention, and Fig. 3 is the partial enlarged drawing of card puncher 10, and Fig. 4 is the vertical view of card puncher 10.Card puncher 10 comprises a card conveyer 71, is used for a card 12 is sent on the card transfer path 14 reciprocating typely, and card 12 is provided with a tape 16, is used for storage data.In a preferred embodiment of the invention, card conveyer 71 comprises a plurality of rollers 18,20,22, an auxiliary wheel 24 and a plurality of gear 26, be used for jointly card 12 being transmitted on the card transfer path 14 reciprocating typely, wherein, auxiliary wheel 24 can make card 12 can be more stably magnetic head 28 (being presented among Fig. 5 and Fig. 6) by card puncher 10.
Card puncher 10 also comprises a plurality of resistance wheel (bearing roller) 30, is arranged on the both sides of card transfer path 14, is used for limiting the transmission of card 12 on card transfer path 14.Like this, the lateral displacement of card 12 on card transfer path 14 will be restricted, and in other words, when card 12 reciprocally transmits, just drift condition can not take place on card transfer path 14.
Consult Fig. 5 to Figure 10, Fig. 5 and Fig. 6 are used for carrying the magnetic head bearing 36 of magnetic head 28 and the schematic diagram of a cam 38 for the magnetic head 28, of card puncher 10.Fig. 7 and Fig. 8 are the schematic diagram of cam 38, and cam 38 comprises a magnetic head face 40 and a pinch roller face 42, and magnetic head face 40 comprises a major axis 44 and a minor axis 46, and pinch roller face 42 also comprises a major axis 48 and a minor axis 50.Fig. 9 and Figure 10 are magnetic head 28, magnetic head bearing 36, reach the exploded view of cam 38 that wherein the magnetic head 28 of Fig. 9 utilizes spring 29 to do supporting construction to replace spring-piece type magnetic head structure of the prior art, makes magnetic head 28 can continue the contact magnetic stripe.
Consult Figure 19, Figure 19 is the functional block diagram of card puncher 10.Card puncher 10 also comprises a sensor 73, a motor 75 and a thermal print head 77.When the sensor in the card puncher 10 73 detects on the tape 16 that magnetic head 28 is being written to data card 12 or is reading the data that are stored on the tape 16, sensor 73 will be controlled motor 75, cam 38 is rotated to cam pressing position, as shown in Figure 8, the cam 38 that rotates to cam pressing position props up magnetic head bearing 36 with the minor axis 46 on its magnetic head face 40, is positioned at its pressing position with control head bearing 36.Like this, magnetic head 28 just touches tape 16 sustainably, data be written on the tape 16 or read the data on the tape 16, as shown in Figure 5.On the other hand, when sensor 73 detects on the tape 16 that magnetic head 28 both be not written to data card 12, when also not reading the data that are stored on the tape 16, sensor 73 control motors 75 rotate to the cam separation point position with cam 38, as shown in Figure 7.The cam 38 that rotates to the cam separation point position props up magnetic head bearing 36 with the major axis 44 on its magnetic head face 40, is positioned at its separation point position with control head bearing 36, like this, magnetic head 28 just can not touch tape 16, in other words, magnetic head 28 just can not touch card 12 yet, as shown in Figure 6.
Consult Fig. 7, Fig. 8 and Figure 11 to Figure 14, Figure 11 and Figure 12 are used for carrying the pinch roller bearing 54 of pinch roller 52 and the schematic diagram of cam 38 for the pinch roller 52, of card puncher 10.Pinch roller 52 is used for calculating the length by the card 12 of magnetic head 28 when card 12 passes through.Figure 13 and Figure 14 are the exploded view of pinch roller 52 and pinch roller bearing 54.
Similarly, when sensor 73 detected magnetic head 28 and operating, sensor 73 control motors 75 rotated to cam pressing position with cam 38, as shown in Figure 8.The cam 38 that rotates to cam pressing position props up pinch roller bearing 54 with the minor axis 50 on its pinch roller face 42, is positioned at its pressing position with control pinch roller bearing 54, and like this, pinch roller 52 just can prop up card 12, as shown in figure 11.On the other hand, when sensor 73 detects on the tape 16 that magnetic head 28 both be not written to data card 12, when also not reading the data that are stored on the tape 16, sensor 73 control motors 75 rotate to the cam separation point position with cam 38, as shown in Figure 7.The cam 38 that rotates to the cam separation point position props up pinch roller bearing 54 with the major axis 48 on its pinch roller face 42, is positioned at its separation point position with control pinch roller bearing 54, and like this, pinch roller 52 just can not touch card 12, as shown in figure 12.
Consult Figure 15 to Figure 18, Figure 15 and Figure 16 are used for carrying the schematic diagram of idle pulley bearing 58, a gear train 60 and an idle pulley cam 62 of idle pulley 56 for the idle pulley 56, of card puncher 10.Wherein, idle pulley 56 is used for propping up card 12 when card 12 is transmitted on the card transfer path 14, and an end interlock of gear train 60 is in cam 38, and other end interlock is in idle pulley cam 62, and idle pulley cam 62 also comprises a major axis 64 and a minor axis 66.Figure 17 and Figure 18 are the exploded view of idle pulley 56, idle pulley bearing 58, gear train 60 and idle pulley cam 62.
Similarly, when sensor 73 detected magnetic head 28 and operating, sensor 73 control motors 75 rotated to cam pressing position with cam 38, as shown in Figure 8.Because idle pulley cam 62 passes through gear train 60 interlocks in cam 38, so, the idle pulley cam 62 of this moment also is rotated to an idle pulley cam pressing position, and the idle pulley cam 62 that rotates to idle pulley cam pressing position props up idle pulley bearing 58 with its minor axis 66, be positioned at its pressing position with control idle pulley bearing 58, like this, idle pulley 56 just can prop up card 12, as shown in figure 15.On the other hand, when sensor 73 detects on the tape 16 that magnetic head 28 both be not written to data card 12, when also not reading the data that are stored on the tape 16, sensor 73 control motors 75, cam 38 is rotated to the cam separation point position, as shown in Figure 7, correspondingly, motor 75 also rotates to idle pulley cam 62 an idle pulley cam separation point position.And the idle pulley cam 62 that rotates to idle pulley cam separation point position props up idle pulley bearing 58 with its major axis 64, is positioned at its separation point position with control idle pulley bearing 58, and like this, idle pulley 56 just can not touch card 12, as shown in figure 18.
It is other that the thermal print head of card puncher 10 is arranged at card transfer path 14, is used for when magnetic head 28 decommissions a predetermined pattern being printed on the card 12.As mentioned above, when magnetic head 28 decommissions, just, when sensor 73 detects on the tape 16 that magnetic head 28 both be not written to data card 12, when also not reading the data that are stored on the tape 16, sensor 73 control motors 75 rotate to the cam separation point position with cam 38.And the cam 38 that rotates to the cam separation point position respectively control head bearing 36 and pinch roller bearing 54 be positioned at its other separation point position, in this simultaneously, sensor 73 is also controlled motor 75, and interlock is rotated to idle pulley cam separation point position in the idle pulley cam 62 of cam 38.And the idle pulley cam 62 that rotates to idle pulley cam separation point position will be controlled idle pulley bearing 58 and be positioned at its separation point position, like this, magnetic head 28, pinch roller 52 and idle pulley 56 can not touch card 12, and thermal print head 77 just can clearly be printed to predetermined pattern on the card 12 under the non-existent situation of interference effect.
Consult Fig. 3 again, card puncher 10 also comprises an activation sensor 32 and a pinch roller sensor 34, it is other all to be arranged at card transfer path 14, wherein, activation sensor 32 is used for producing an activation signal, with activation magnetic head 28 when card 12 passes through, and pinch roller sensor 34 is used for when card 12 passes through with respect to magnetic head 28, calculates the length by the card 12 of magnetic head 28.
Card puncher 10 also comprises an automatic card feed-in device (automatic card feeder) 79, is shown in Fig. 4, is used for taking up card 12, and card 12 is fed on the card transfer path 14.
Compared with the prior art, when magnetic head 28 running, touch the element of card 12 in the card puncher 10 of the present invention, as magnetic head 28, pinch roller 52, and idle pulley 56.When magnetic head 28 decommissions, just when thermal print head 77 is printed on predetermined pattern on the card 12, separate card 12.Like this, thermal print head 77 just can clearly be printed to predetermined pattern on the card 12 under the non-existent situation of interference effect.
The above only is the preferred embodiments of the present invention, and all equivalent variations and modifications of being made according to claim scope of the present invention all should belong to protection scope of the present invention.