WO2011044719A1 - 在非纸张介质上打印图文的打印机 - Google Patents
在非纸张介质上打印图文的打印机 Download PDFInfo
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- WO2011044719A1 WO2011044719A1 PCT/CN2009/001329 CN2009001329W WO2011044719A1 WO 2011044719 A1 WO2011044719 A1 WO 2011044719A1 CN 2009001329 W CN2009001329 W CN 2009001329W WO 2011044719 A1 WO2011044719 A1 WO 2011044719A1
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- ink head
- printing
- printer
- printing unit
- signal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
Definitions
- the present invention relates to a printing apparatus, and more particularly to a printer for printing graphics on a non-paper medium. Background technique
- a modified printer of this type typically includes:
- a strip-shaped printing unit having an ink head and a guiding device and an ink head motor that can reciprocate the ink head along the length direction (ie, the longitudinal direction) of the printing unit;
- a print carrying device for accommodating the printed matter
- One of the base, the printing unit or the print carrying device is fixed on the base, and the other one is disposed on the guide rail of the base so that the two can move relative to each other in a direction perpendicular to the movement track of the ink head;
- a stepping motor as a power source for relative movement of the printing unit and the print carrier
- a drive belt directly connected to the stepping motor or connected by a shifting mechanism, which can be connected to the printing unit or the printed matter carrier at a certain point and directly drives the relative movement of the two;
- the control device controls the printing operation of the printer by controlling the cooperation of the ink head motor and the stepping motor by issuing a signal.
- the control device specifically controls the printing process according to the setting and instructions of the computer, including the coordinated sending of a pulse signal to the stepping motor to drive the printing unit or the workpiece carrying device to move longitudinally step by step through the belt.
- a pulse signal is sent to the ink head motor to make the ink head reciprocate laterally on the printing unit, and according to the graphic content transmitted by the computer, a small ink droplet is printed on some specific surface of the object to be printed.
- the stepping motor further moves the printing unit or the object to be printed along the guide rail of the base, and the ink head reciprocates once, and the result is that a pre-form is formed on the entire surface of the printed object.
- a specific graphic is provided to enable printing on non-paper media.
- a Chinese-style invention patent number ZL200510043920.2 (invention name: device for printing graphics on plants and simulated plants, authorization publication number: CN100421958C) discloses a type of printer, as shown in Fig. 1.
- the printer before the modification has a normal printing program, it also has a power-on self-test function, and some ink head cleaning functions. Each time the power is turned on, the paper roll rotates at a high speed, and the ink head also reciprocates all the way. Once, stop Leaving on the side of the printing unit beyond the normal printing range; with the ink head cleaning function, when moving to the other side, the ink head is also moved outside the normal printing range, and all the nozzles are sprayed several times at the same time.
- the cleaning is completed; since the power-on self-test and the cleaning of the ink head are required to move the ink head beyond the normal printing range, a card is respectively disposed at the critical point on both sides of the normal printing range (ie, the boundary point of the ink head).
- the control device sends a signal, and a specific mechanism pushes the end of the paper (avoiding During the non-printing process, the paper is entangled.
- the transfer mechanism is used to open the block by the roll paper roller rotation mechanism, and the ink head is driven to continue to move outward beyond the critical point of the removed card block, and then The self-checking and/or cleaning of the ink head is performed outside the normal print range of the paper.
- the stepping motor that originally driven the roll paper roller was changed to drive the printing unit to move along the guide rail on the base relative to the base and the object to be printed by the belt, or the belt drive the printed object carrying device along the base.
- the guide rail moves relative to the printing unit; therefore, after the modification, the original ink head can not be used for the normal printing critical point, but it is not necessary; however, the problem is that the cleaning ink head is driven by the stepping motor to drive through the roll paper before the modification.
- the shaft is coupled to the stop, so a device for identifying the self-test signal and the ink head cleaning signal is designed, that is, the signal sent by the control device to the stepping motor is cut off during the self-test and the ink head cleaning process, so that the switch is turned on.
- the printing unit or the object to be printed is not moved along the guide rail driven by the stepping motor (similar to the paper being caught when cleaning the ink head), to avoid the subsequent printing, the printing unit or the
- the position of the print carrier on the guide rail changes greatly, and the image is offset from the surface of the printed matter during normal printing. Even printing positions located outside the material to be printed (paper-like ink head caught in the cleaning part, the graphic printing certainly deviate from a preset position on the paper). This is prior art.
- this structure makes the modified object only suitable for the printer whose rotation of the motor has no feedback to the control device, and for another type of printer, such as some HP printers, the grating code wheel and the sensing are arranged at the end of the roll paper roller.
- the device feeds back the rotation of the motor to the control device.
- the rotation of the stepping motor is cut off during the self-test and the ink head cleaning, and the control device does not receive the feedback of the reel rotation. , it will lead to errors.
- the feedback is a program built into the control device chip, which cannot be removed during modification. That is, it is necessary to find a way to enable the control device to receive normal feedback of the motor rotation, but must also cut off the drive in the subsequent drive coupling step of the drive train.
- the invention solves the problem that the control device cannot receive the normal feedback of the rotation of the motor during the power-on self-test and the ink head cleaning process, and can not cut off the technical problem of the subsequent transmission coupling transmission of the transmission chain.
- the present invention provides a printer comprising: a strip-shaped printing unit having an ink head and a guiding device and an ink head motor for reciprocating the ink head along the length of the printing unit;
- a print carrying device for accommodating the printed matter
- One of the base, the printing unit or the print carrying device is fixed on the base, and the other one is disposed on the guide rail of the base, and the other can be relatively moved in a direction perpendicular to the movement track of the ink head;
- a stepping motor as a power source for relative movement of the printing unit and the print carrier
- a drive belt coupled to the stepper motor directly or through a shifting mechanism capable of being coupled to the printing unit or the print carrier at a certain point and directly driving the relative movement of the two;
- the control device controls the ink head motor and the stepping motor to control the ink head cleaning and printing of the printer by issuing a signal;
- the relative base mover of the printing unit or the print carrying device sets the belt clamping clutch mechanism and the corresponding trigger mechanism
- the triggering mechanism performs a clutch trigger according to a signal sent by the control device to perform an action of cleaning the ink head or a movement of the ink head triggered by the signal.
- the present invention enables a printer with motor rotation feedback to be converted into a non-paper media printer.
- FIG. 1 is a schematic structural view of a prior art device for printing graphics on plants and simulated plants
- FIG. 2 is a schematic structural view of Embodiment 1 of the present invention.
- Figure 3 is a schematic structural view of a clamping mechanism according to Embodiment 1 of the present invention.
- Figure 4 is a schematic structural view of an electromagnetic clamping mechanism of Embodiment 2 of the present invention.
- Figure 5 is a schematic view showing the state in which the electromagnet of the embodiment 3 of the present invention is not energized
- Fig. 6 is a view showing the energization state of the electromagnet according to the third embodiment of the present invention. detailed description
- the printer of the present invention comprises:
- the printing unit 1 is provided with an ink head 2 and a guiding device 3 and an ink head motor (which are not shown in the prior art) which allows the ink head to reciprocate along the length of the printing unit.
- the print carrying device 4 is for accommodating the printed matter.
- the base 5, the print carrying device 4 is fixed on the base 5, and the printing unit 1 is disposed on the guide rail 6 of the base 5, so that the printing unit 1 can be moved relative to the object bearing device 4 in a direction perpendicular to the moving track of the ink head 2. .
- a stepping motor (which is a prior art, not shown) serves as a power source for the printing unit 1 to move along the guide rail 6.
- the belt 7 is wound on both pulleys 8 at both ends, and one of the pulleys 8 is connected to the stepping motor through a shifting mechanism.
- the control device (which is a prior art, not shown) realizes printing by controlling the cooperation of the ink head motor and the stepping motor by issuing a signal.
- the printing unit 1 is provided with a clamp clamping mechanism as a belt clamping clutch mechanism.
- the fixing unit 9 includes a fixed jaw 9 and a movable jaw 10, and the fixed jaw 9 and the movable jaw 10 are hinged.
- Spring (not shown), in the normal state, the fixed jaw 9 and the movable jaw 10 clamp the belt 7 under the action of the torsion spring, so that the control device sends a signal when the printer is normally printed and printed.
- the motor can drive the printing unit 1 along the guide rail to move accurately along the guide rail, perform printing, and reset correctly after printing.
- the rear end of the movable jaw 10 abuts against the end of the lever 11 near the end of the lever 11 , and the middle portion of the lever 1 1 is hingedly disposed on the printing unit 1 , and a connecting rod 12 , 13 is respectively hinged at both ends of the lever 1 1
- the other ends of 12, 13 are respectively located at two boundary positions of the reciprocating movement of the ink head 2, and the other ends of the links 12, 13 are respectively provided with the bending arms 14 to constitute a triggering stopper to ensure that the ink head 2 moves to the boundary between the two sides.
- the bending arm 14 can be respectively touched to form the trigger mechanism of the above-mentioned clamp type clamping mechanism.
- the ink head when cleaning the ink head, the ink head first moves to the right (illustration), and the left side touches the curved arm 14 of the connecting rod 13 when it starts to reach the left critical point position of the normal printing range, thereby triggering
- the lever 1 1 rotates, the rotation of the lever 1 1 pushes the rear end of the movable jaw 10 to the right.
- the movable jaw can be regarded as a lever
- the front end of the movable jaw 10 is leftward.
- the front end of the moving and fixing jaws 9 creates a certain gap, so that the clamping of the belt 7 is loosened.
- the stepping motor and the belt 7 are actually idling, that is, the movement of the printing unit 1 along the guide rail 6 is not driven.
- the ink head continues to move to the right beyond the normal printing range, and the cleaning of the ink head 2 is started.
- the external force of the bending arm 14 disappears, the movable jaw 10 and the fixed
- the jaw 9 clamps the belt 7 again under the action of the torsion spring; that is, during the entire process of cleaning the ink head, the rotation of the stepping motor and the belt is idling, which does not cause the printing unit 1 to deviate from printing.
- the initial position avoids deviations from subsequent print positions.
- the code wheel set on the driving wheel of the transmission belt can feedback the signal of the motor rotation to the control device through the sensor normally, so that the control device does not go wrong, and the built-in program runs normally smoothly.
- the improvement of the invention enables a printer that rotates the mechanical feedback function of the motor to be converted into a non-paper media printer. To achieve.
- the idea of the present invention is that the transmission belt and the printing unit are out of the transmission connection relationship during abnormal printing (including reset after printing), that is, the key to the object of Embodiment 1 is the mechanically triggered clutch mechanism.
- the mechanical triggering is also performed when the circuit signal first gives an instruction, so it is not difficult to think that the clutch mechanism can directly trigger an electromagnetic clutch mechanism through the circuit signal.
- the electromagnetic clamping mechanism includes an electromagnet 21, which is directly connected to the control device through a data line (not shown), and the front end of the electromagnet 21 is provided with a pair of clips 22, in a normal printing state, electromagnetic
- the magnetic core 23 of the iron 21 is pressed against the clamping member 22 by the front end of the spring of the sleeved spring; after the electromagnet 21 receives the signal of the self-test or cleaning the ink head, the electromagnet 21 is energized.
- the magnetic core 23 contracts backward against the spring force under the action of the magnetic force, so that the transmission belt 7 is no longer clamped and becomes idling; after the self-test or cleaning of the ink head, the electromagnet receives the signal and resumes the clamping state.
- the position of the gear can be changed by using the electromagnet, and the meshing state of the gear can be disengaged to realize the clutching and idling of the stepping motor.
- the intermediate wheel 31 is installed at One end of a lever 32, the middle of the lever is hinged on the axle of the gear of the upstream gear 33, and the other end of the lever 32 is connected to the core of an electromagnet. Under normal conditions, the magnetic core is under the action of the spring force of its sleeve.
- the electromagnet 21 is energized against the lever 32 so that the intermediate wheel 31 at the other end is only engaged by the downstream gear 34; in actual operation, after the electromagnet 21 receives the signal of the self-test or cleaning the ink head, the electromagnet 21 is energized, magnetic The core action swing lever disengages the intermediate wheel 31 from its downstream gear 34. As shown in Fig. 6, the drive belt stops indirectly, and the stepping motor becomes idling. After the self-test or cleaning of the ink head is completed, the electromagnet receives a signal to be powered off, and the core reset causes the intermediate wheel 31 to return to the meshing state with the downstream gear 34.
- the code wheel is disposed on the intermediate wheel 31, and the intermediate wheel 31 still rotates normally, so that the code wheel can normally feed back the signal of the motor rotation to the control device through the sensor, so that the control device does not go wrong, and the built-in program is normally smooth. run.
Description
在非纸张介质上打印图文的打印机 技术领域
本发明涉及打印设备， 尤其涉及一种在非纸张介质上打印图文的打印机。 背景技术
随着社会需求的不断发展， 人们开始改造传统的在纸张上打印的喷墨打印机， 使之能 够在非纸张， 如鲜花、 指甲、 T恤、 蜡烛等物品的表面彩喷图文。
这类功能的改装后的打印机， 通常包括：
长条状的打印单元， 打印单元上带有墨头及可使墨头沿打印单元长度方向 （即纵向） 往复移动的导向装置和墨头电机；
打印物承载装置， 用于容置被打印物；
底座， 打印单元或打印物承载装置两者之一固定在底座上， 两者另一设置在底座的导 轨上， 使两者可沿垂直于墨头移动轨迹的方向相对移动；
步进电机， 作为打印单元和打印物承载装置相对移动的动力源；
传动带， 与所述步进电机直接连接或通过变速机构连接， 其在某一点能够与打印单元 或打印物承载装置连接并直接驱动两者的相对移动；
控制装置， 该控制装置通过发出信号控制墨头电机、 步进电机的协动， 实现打印机的 打印动作。
实际打印时， 控制装置根据计算机的设置和指令， 具体的控制打印的过程， 包括协同 的向步进电机发出脉冲信号，使之通过传动带带动打印单元或被打印物承载装置之一纵向 步进移动， 与此同时， 又协同的向墨头电机发出脉冲信号， 使墨头在打印单元上横向往复 移动， 根据计算机传输的图文内容， 在被打印物的表面一些特定位置喷印微小墨滴， 在预 设有图文内容的表面上方移动时，步进电机每带动打印单元或被打印物承载装置沿底座的 导轨前进一步，墨头就往复一次，结果就是在整个被打印物表面形成了预设的特定的图文， 实现了在非纸张介质上的打印。专利号为 ZL200510043920.2 (发明名称： 在植物及仿真植 物表面打印图文的装置， 授权公告号： CN100421958C) 的中国发明专利就公开了一种类 似结构的打印机， 如图 1所示。
由于改装前的打印机除了具有正常打印程序之外， 还普遍的具有开机自检功能， 有的 还有墨头清洗功能， 每次开机时， 卷纸滚轴高速转动， 同时墨头也全程往复运动一次， 停
留在打印单元一侧超出正常打印范围之外的地方； 具有墨头清洗功能的， 在向另一侧运动 时， 也会使墨头移动到常规打印范围之外， 所有喷口同时喷几次墨滴完成清洗； 由于开机 自检和清洗墨头都要使墨头移动到超出正常打印范围之外，因此在正常打印范围的两边临 界点（即墨头的边界点）处分别设置了一个卡块， 以保证在打印过程中墨头的移动在正常 范围之内， 保证打印范围的准确性； 在开机自检或执行清洗墨头任务时， 控制装置发出信 号， 一特定机构推开纸张端部（避免此非打印过程中纸张被卷入） 同时通过卷纸滚轴转动 耦合一传动机构拨开卡块， 驱动墨头使其能够越过已被拨走的卡块的临界点继续向外移 动， 然后在纸张正常打印范围之外执行上述自检査和 /或清洗墨头的动作。
改装以后，原来驱动卷纸滚轴的步进电机被改成通过传动带驱动打印单元沿底座上的 导轨相对于底座及被打印物承载装置移动，或者是传动带驱动被打印物承载装置沿底座上 的导轨相对于打印单元移动；因此改装以后，原来的墨头正常打印临界点的挡块无法使用， 但亦已没有必要； 但问题在于， 由于改装前清洗墨头是步进电机带动通过卷纸滚轴耦合那 个挡块的， 因此设计了一个识别自检信号和墨头清洗信号的装置， 即在自检和墨头清洗过 程中切断控制装置向步进电机发出的信号， 这样就会使得在开机自检和清洗墨头时， 打印 单元或被打印物承载装置不会在步进电机的驱动下沿导轨移动（类似于清洗墨头时纸张被 卷入） ， 避免后续打印时， 打印单元或被打印物承载装置在导轨上的位置发生很大变化， 正常打印时图文偏离被打印物表面的预设位置甚至于打印到被打印物之外（类似于纸张在 清洗墨头中被卷入一部分， 图文打印在纸张上肯定是偏离预设位置的） 。 此为现有技术。
但是这种结构使得改装对象仅适用于电机的旋转对控制装置无反馈的打印机，而对于 另外一类打印机， 如惠普的一些打印机， 是在卷纸滚轴的端部设置光栅码盘和传感装置， 将电机的转动反馈给控制装置， 此时如使用现有技术， 即在开机自检和墨头清洗的过程中 切断步进电机的转动， 控制装置收不到卷纸滚轴旋转的反馈， 就会导致错误。 而该反馈是 控制装置芯片内置的程序， 改装时无法去掉这种反馈程序。 即必须想办法使得控制装置能 够接收到电机旋转的正常反馈， 而又必须在传动链的后续传动耦合步骤中切断传动。
至今为止， 尚无解决这一问题的具体方案。 发明内容
本发明要解决现有的打印机在开机自检和墨头清洗的过程中控制装置不能够接收到 电机旋转的正常反馈， 不能够切断传动链后续传动耦合传动的技术问题。
为达到上述目的， 本发明提供一种打印机， 其包括：
长条状的打印单元，打印单元上带有墨头及可使墨头沿打印单元长度方向往复移动的 导向装置和墨头电机；
打印物承载装置， 用于容置被打印物；
底座， 打印单元或打印物承载装置两者之一固定在底座上， 两者另一设置在底座的导 轨上， 两者另一可沿垂直于墨头移动轨迹的方向相对移动；
步进电机， 作为打印单元和打印物承载装置相对移动的动力源；
传动带， 与所述步进电机直接或通过变速机构连接， 其在某一点能够与打印单元或打 印物承载装置连接并直接驱动两者的相对移动；
控制装置，其通过发出信号控制墨头电机、步进电机的协动，实现打印机的墨头清洗、 打印等动作；
打印单元或打印物承载装置的相对底座移动者设置传动带夹紧离合机构及相应的触 发机构；
所述触发机构根据控制装置发出的执行清洗墨头动作的信号或该信号触发的墨头移 动进行离合触发。
本发明使得带有电机旋转反馈的打印机改装成非纸张介质打印机能够得以实现。 附图说明
图 1是现有技术的在植物及仿真植物表面打印图文的装置的结构示意图；
图 2是本发明实施例 1的结构示意图；
图 3是本发明实施例 1的夹紧机构的结构示意图；
图 4是本发明实施例 2的电磁夹紧机构的结构示意图；
图 5是本发明实施例 3的电磁铁未通电状态示意图；
图 6是本发明实施例 3的电磁铁通电状态示意图。 具体实施方式
实施例 1：
如图 2、 3所示， 本发明的打印机包括：
长条状的打印单元 1， 打印单元 1上带有墨头 2及可使墨头沿打印单元长度方向往复 移动的导向装置 3和墨头电机 （属现有技术， 图中未示出） 。
打印物承载装置 4， 用于容置被打印物。
底座 5， 打印物承载装置 4固定在底座 5上， 打印单元 1设置在底座 5的导轨 6上， 使打印单元 1可沿垂直于墨头 2移动轨迹的方向相对于被打印物承载装置 4移动。
步进电机 （属现有技术， 图中未示出） ， 作为打印单元 1沿导轨 6移动的动力源。 传动带 7， 其两端分别绕置在两个带轮 8上， 其中一个带轮 8通过变速机构与步进电 机连接。
控制装置 （属现有技术， 图中未示出） ， 其通过发出信号控制墨头电机、 步进电机的 协动， 实现打印。
打印单元 1上设置有作为传动带夹紧离合机构的钳式夹紧机构， 如图 3所示， 包括一 固定钳爪 9和活动钳爪 10， 固定钳爪 9和活动钳爪 10铰接处设置扭簧 （图中未示出） ， 通常状态下， 固定钳爪 9和活动钳爪 10在扭簧作用下会夹紧传动带 7，这样打印机在正常 打印及打印完毕复位时， 控制装置发出信号， 步进电机就能够通过传动带驱动打印单元 1 沿导轨准确移动， 实施打印， 以及打印后会正确复位。
活动钳爪 10的后端抵靠在拨杆 11靠近其一端部位置上， 拨杆 1 1中部铰接设置在打 印单元 1上， 拨杆 1 1两端分别铰接一连杆 12、 13， 连杆 12、 13的另一端分别位于墨头 2 往复移动的两个边界位置处， 且连杆 12、 13的另一端分别带有弯臂 14构成触发挡块， 以 保证墨头 2移动到两边边界时分别能够碰触到弯臂 14，形成了上述钳式夹紧机构的触发机 构。
实际运行时， 清洗墨头时， 墨头首先会向右 （图示）移动， 其左侧在开始达到正常打 印范围的左边临界点位置时， 碰触到连杆 13的弯臂 14， 从而触发拨杆 1 1 的旋转， 拨杆 1 1的旋转又推动活动钳爪 10的后端向右转动， 根据杠杆原理 （活动钳爪可视为杠杆） ， 活动钳爪 10的前端就会向左移动与固定钳爪 9的前端产生一定的缝隙， 从而松幵了对传 动带 7的夹紧， 自此开始步进电机及传动带 7实际上是空转， 即不会带动打印单元 1沿导 轨 6的移动；墨头继续向右移动，至超出正常打印范围之外，开始进行清洗墨头 2的动作， 清洗完毕复位至正常打印范围的边界点内， 弯臂 14的外力消失， 活动钳爪 10和固定钳爪 9在扭簧的作用下又夹紧传动带 7; 也就是说， 在整个清洗墨头的过程中， 步进电机和传 动带的转动为空转，不会导致打印单元 1偏离打印初始位置，避免了后续打印位置的偏离。 而传动带的驱动轮上设置的码盘又能够通过传感器正常向控制装置反馈电机旋转的信号， 使控制装置不会出错， 内置程序正常顺利运行。
同样的道理， 在开机自检时过程也是如此。
本发明的改进使得电机旋转机械反馈功能的打印机改装成非纸张介质打印机能够得
以实现。
实施例 2
由上述实施例可以看出， 本发明的思路就是在非正常打印 （包括打印后的复位） 时传 动带与打印单元脱离传动连接关系，即实施例 1的能够达到目的的关键在于机械触发的离 合机构， 但机械触发也是在电路信号首先给出指令时执行的， 因此不难想到， 离合机构可 以是通过电路信号直接触发一电磁离合机构。
如图 4所示， 电磁夹紧机构包括了电磁铁 21， 其通过数据线直接与控制装置连接（图 中未示出） ， 电磁铁 21的前端设置对夹件 22， 正常打印状态时， 电磁铁 21的磁芯 23在 其套接的弹簧的弹力作用下其前端将传动带 7紧压在对夹件 22上； 电磁铁 21接收到开机 自检或清洗墨头的信号后， 电磁铁 21通电， 磁芯 23在磁力作用下克服弹簧力向后收缩， 从而使传动带 7不再被夹紧， 成为空转； 自检或清洗墨头完毕后， 电磁铁收到信号， 恢复 夹紧状态。
实施例 3
对于步进电机连接齿轮变速机构的打印来说， 还可以使用电磁铁改变齿轮的位置， 使 齿轮的啮合状态脱离来实现步进电机的离合空转， 如图 5所示， 中间轮 31被安装在一个 杠杆 32的一端， 杠杆中部铰接在其上游齿轮 33齿轮的轮轴上， 杠杆 32的另一端则连接 一电磁铁的磁芯上， 正常状态下磁芯在其套接的弹簧力的作用下， 抵触着杠杆 32使其另 一端的中间轮 31仅靠下游齿轮 34使两者处于啮合状态； 实际运行时， 电磁铁 21接收到 开机自检或清洗墨头的信号后， 电磁铁 21通电， 磁芯动作撬动杠杆使中间轮 31与其下游 齿轮 34脱离啮合， 如图 6所示， 间接的导致传动带停止转动， 步进电机成为空转。 自检 或清洗墨头完毕后， 电磁铁收到信号断电， 磁芯复位带动中间轮 31恢复与下游齿轮 34的 啮合状态。 在上述过程中， 码盘设置在中间轮 31上， 而中间轮 31仍正常旋转， 因此码盘 又能够通过传感器正常向控制装置反馈电机旋转的信号， 使控制装置不会出错， 内置程序 正常顺利运行。
以上所述的仅为本发明的较佳可行实施例，所述实施例并非用以限制本发明的专利保 护范围， 因此凡是运用本发明的说明书及附图内容所作的等同结构变化， 同理均应包含在 本发明的保护范围内。
Claims
1、 一种在非纸张介质上打印图文的打印机， 包括： 打印单元， 打印单元上带有墨头 及可使墨头沿打印单元纵向往复移动的导向装置和墨头电机；
打印物承载装置， 用于容置被打印物；
底座， 打印单元或打印物承载装置两者之一为固定件， 固定在底座上， 两者另一为移 动件， 设置在底座上并能够相对底座移动， 使该移动件能够沿垂直于墨头移动轨迹的方向 在动力源的驱动下相对移动；
传动带， 与所述动力源直接连接或通过变速机构连接， 所述传动带在某一点能够与该 移动件连接并直接驱动该移动件相对于所述固定件的相对移动；
控制装置， 通过发出信号控制墨头电机与所述动力源的协动， 实现打印；
其特征在于设置有夹紧与松开所述传动带的离合机构；
根据控制装置发出的执行清洗墨头动作的信号或该信号触发的墨头移动进行离合触 发， 即触发所述离合机构在夹紧所述传动带状态与松开所述传动带状态之间切换。
2、 根据权利要求 1所述的在非纸张介质上打印图文的打印机， 其特征在于所述动力 源为步进电机， 所述打印单元为长条状。
3、 根据权利要求 2所述的在非纸张介质上打印图文的打印机， 其特征在于所述底座 上设置有导轨， 所述移动件设置在所述导轨上以相对所述底座移动。
4、 根据权利要求 3所述的在非纸张介质上打印图文的打印机， 其特征在于所述离合 机构包括一固定钳爪和一活动钳爪， 所述固定钳爪和所述活动钳爪铰接处设置扭簧； 所述 活动钳爪的后端抵靠在一拨杆靠近其一端部位置上，所述拨杆中部铰接设置在所述移动件 上， 所述拨杆两端部分别铰接一连杆， 所述两连杆的另一端分别位于墨头往复移动的两个 边界位置处， 且所述连杆的另一端分别带有墨头移动到两边边界时分别能够碰触到的弯 臂， 通过触碰所述弯臂进行所述离合触发。
5、 根据权利要求 2所述的在非纸张介质上打印图文的打印机， 其特征在于所述步进 电机通过变速机构与传动带连接， 变速机构包括中间轮及其上游齿轮、 下游齿轮， 所述离 合机构由电磁铁和电磁铁下方设置的用于夹紧所述传动带的对夹件构成，该对夹件与该移 动件固定连接， 所述电磁铁包括套有弹簧的磁芯， 电磁铁通过数据线与控制装置连接， 接 收所述控制装置的开机自检与清洗墨头的信号， 根据所述信号进行所述离合触发。
6、 根据权力要求 2所述的在非纸张介质上打印图文的打印机， 其特征在于， 所述步 进电机通过变速机构与传动带连接， 变速机构包括中间轮及其上游齿轮、 下游齿轮， 所述 机械离合机构包括一杠杆， 中间轮被安装在所述杠杆的一端， 所述杠杆中部铰接在上游齿 轮的轮轴上， 杠杆的另一端连接在一电磁铁的磁芯上， 接收所述控制装置的开机自检与清 洗墨头的信号， 根据所述信号进行所述离合触发， 所述移动件与所述传动带固定连接。
7、 根据权力要求 6所述的在非纸张介质上打印图文的打印机， 其特征在于码盘设置 在中间轮上。
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| CN1718439A (zh) * | 2005-07-01 | 2006-01-11 | 王红 | 在植物及仿真植物表面打印图文的装置 |
| CN1891482A (zh) * | 2005-07-08 | 2007-01-10 | 王红 | 在植物及仿真植物表面打印图文的方法及设备及涂层剂 |
| CN201020931Y (zh) * | 2007-04-30 | 2008-02-13 | 陈凤云 | 鲜花及指甲多功能彩绘机 |
| WO2008100311A1 (en) * | 2007-02-13 | 2008-08-21 | Pca International, Inc. | Method and apparatus for printing images |
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| CN1891482A (zh) * | 2005-07-08 | 2007-01-10 | 王红 | 在植物及仿真植物表面打印图文的方法及设备及涂层剂 |
| WO2008100311A1 (en) * | 2007-02-13 | 2008-08-21 | Pca International, Inc. | Method and apparatus for printing images |
| CN201020931Y (zh) * | 2007-04-30 | 2008-02-13 | 陈凤云 | 鲜花及指甲多功能彩绘机 |
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