技术领域technical field
本发明涉及一种用于图像形成装置中的处理盒。The present invention relates to a process cartridge used in an image forming apparatus.
背景技术Background technique
处理盒是一种可拆卸地装入图像形成装置主机中的一种装置，该装置作为一个整体单元包括用于电子照相的感光组件和至少诸如充电装置，显影装置，清洁装置等装置中的一个或者多个。处理盒可拆卸地装入图像形成装置中，便于处理盒的更换和图像形成装置的保养。图像形成装置是是通过以下的方式工作的：图像形成装置给充电装置冲上一层均匀的电荷，图像形成装置中的曝光单元对充电元件进行有选择地曝光，从而在感光元件表面形成一层静电潜像，显影装置用显影剂将该静电潜像显影成显影剂像，图像形成装置中的转印单元将该显影剂像转印至打印纸等记录介质中，后在图像形成装置中的定影装置的作用下，形成可视的图像。A process cartridge is a device detachably incorporated into the main body of an image forming apparatus, which includes, as an integral unit, a photosensitive assembly for electrophotography and at least one of devices such as a charging device, a developing device, a cleaning device, etc. or more. The process cartridge is detachably loaded into the image forming apparatus, which facilitates replacement of the process cartridge and maintenance of the image forming apparatus. The image forming device works in the following way: the image forming device charges the charging device with a uniform charge, and the exposure unit in the image forming device selectively exposes the charging element to form a layer on the surface of the photosensitive element. Electrostatic latent image, the developing device uses a developer to develop the electrostatic latent image into a developer image, and the transfer unit in the image forming device transfers the developer image to a recording medium such as printing paper, and then in the image forming device Under the action of the fixing device, a visible image is formed.
通常，处理盒的一端设置有感光鼓驱动组件用于接收图像形成装置中的驱动力。在现有技术中，中国专利 CN201110394455公开了一种处理盒。其盒体上具有一个可控制感光鼓驱动头伸缩的控制机构，控制机构由控制杆和固定控制杆的弹性元件组成。控制杆上的迫推斜面与动力接收头上的受迫斜面结合产生的迫使动力接收头收缩的力太小，易导致动力接收头在轴向方向收缩不能达到预定行程，当完成打印任务后，从图像形成装置中取出处理盒时，与图像形成装置干涉，导致不能从图像形成装置顺畅地取出的问题。Generally, one end of the process cartridge is provided with a photosensitive drum driving assembly for receiving the driving force in the image forming apparatus. In the prior art, Chinese patent CN201110394455 discloses a process cartridge. The box body has a control mechanism capable of controlling the expansion and contraction of the photosensitive drum drive head, and the control mechanism is composed of a control rod and an elastic element for fixing the control rod. The forced pushing slope on the control rod and the forced slope on the power receiving head combine to produce too little force to force the power receiving head to shrink, which will easily cause the power receiving head to shrink in the axial direction and fail to reach the predetermined stroke. When the printing task is completed, When the process cartridge is taken out of the image forming apparatus, it interferes with the image forming apparatus and cannot be smoothly taken out of the image forming apparatus.
发明内容Contents of the invention
本发明提供了一种装机、取盒顺畅，动力传输平稳，工作可靠的处理盒，以解决现有技术中处理盒从图像形成装置中取出易发生干涉的问题。The invention provides a process box with smooth installation and box removal, stable power transmission and reliable operation to solve the problem in the prior art that the process box is easily interfered when taken out of an image forming device.
为解决以上技术问题，本发明采取以下技术方案实现：In order to solve the above technical problems, the present invention adopts the following technical solutions to realize:
一种可拆卸安装在图像形成装置中的处理盒，包括处理盒盒体，位于盒体上的感光鼓驱动组件，以及一个控制感光鼓驱动组件上的动力接收头收缩的驱动杆，驱动杆上设置有控制部和迫推部，驱动杆可绕设置在壳体上的支点转动，控制部到支点的距离与迫推部到支点的距离的长度比为1：5～5：1之间。A process cartridge detachably installed in an image forming device, comprising a process cartridge body, a photosensitive drum drive assembly located on the box body, and a drive rod for controlling the contraction of a power receiving head on the photosensitive drum drive assembly, on the drive rod The control part and the pushing part are provided, and the driving rod can rotate around the fulcrum set on the housing. The length ratio of the distance from the control part to the fulcrum and the distance from the pushing part to the fulcrum is between 1:5 and 5:1.
所述感光鼓驱动组件上还包括鼓齿轮，位于鼓齿轮和动力接收头之间的第一弹性元件、压块、楔形块，连接所述动力接收头、压块和楔形块的销钉以及连接并限制所述动力接收头轴向运动的限位元件。The photosensitive drum driving assembly also includes a drum gear, a first elastic element between the drum gear and the power receiving head, a pressing block, a wedge block, a pin connecting the power receiving head, the pressing block and the wedge block, and connecting and A limiting element that limits the axial movement of the power receiving head.
所述处理盒上包括一个鼓支架，所述鼓支架上包含有一个由所述鼓支架上两个相互平行平面之间形成的容纳部，所述容纳部容纳所述楔形块。The process box includes a drum bracket, and the drum bracket includes a receiving portion formed between two mutually parallel planes on the drum bracket, and the receiving portion accommodates the wedge block.
所述楔形块的倾斜角为20°～70°。The inclination angle of the wedge-shaped block is 20°-70°.
所述楔形块的倾斜角为35°。The inclination angle of the wedge block is 35°.
所述控制部到支点的距离与迫推部到支点的距离的长度比为3:4。The length ratio of the distance from the control part to the fulcrum to the distance from the forcing part to the fulcrum is 3:4.
采用上述技术方案后，从图像形成装置中取出处理盒时，驱动杆上的旋转力将转换成使动力接收头收缩的足够大的轴向力，动力接收头在轴向方向收缩至预定行程，从而完成动力接收头与图像形成装置驱动头的分离，顺利从图像形成装置中取出。After adopting the above technical scheme, when the process cartridge is taken out from the image forming device, the rotational force on the drive rod will be converted into a sufficiently large axial force to shrink the power receiving head, and the power receiving head will shrink to a predetermined stroke in the axial direction, In this way, the separation of the power receiving head and the driving head of the image forming device is completed, and it can be taken out from the image forming device smoothly.
附图说明Description of drawings
图1为本发明处理盒装入图像形成装置之前的状态示意图；Fig. 1 is a schematic diagram of the state before the process cartridge of the present invention is loaded into the image forming apparatus;
图2为图1中A的局部放大视图；Fig. 2 is a partial enlarged view of A in Fig. 1;
图3为本发明处理盒装入图像形成装置前的驱动杆和感光鼓驱动组件的结构示意图；3 is a structural schematic diagram of the drive rod and the photosensitive drum drive assembly before the process cartridge of the present invention is loaded into the image forming apparatus;
图4A为本发明感光鼓驱动组件中的鼓支架结构视图；Fig. 4A is a structural view of the drum support in the photosensitive drum drive assembly of the present invention;
图4B为本发明感光鼓驱动组件中的鼓支架结构视图；Figure 4B is a structural view of the drum support in the photosensitive drum drive assembly of the present invention;
图5为本发明感光鼓驱动组件分解视图；Fig. 5 is an exploded view of the photosensitive drum driving assembly of the present invention;
图6为本发明感光鼓驱动组件的剖视图；Figure 6 is a cross-sectional view of the photosensitive drum drive assembly of the present invention;
图7为本发明处理盒中动力接收头的立体图；Figure 7 is a perspective view of the power receiving head in the process box of the present invention;
图8为图7中动力接收头沿A～A截面的剖视图；Fig. 8 is a sectional view of the power receiving head along section A to A in Fig. 7;
图9为本发明处理盒装入图像形成装置过程中的状态过程图；Fig. 9 is a state process diagram during the process of loading the process cartridge into the image forming apparatus according to the present invention;
图10为本发明处理盒中感光鼓驱动组件中楔形块的立体图；Figure 10 is a perspective view of the wedge-shaped block in the photosensitive drum driving assembly in the process cartridge of the present invention;
图11为本发明处理盒中驱动杆的结构视图；Figure 11 is a structural view of the drive rod in the process cartridge of the present invention;
图12为本发明处理盒刚从图像形成装置过程中取出的结构示意图；Fig. 12 is a structural schematic diagram of the process cartridge of the present invention just taken out from the image forming apparatus;
图13为本发明处理盒从图像形成装置中取出时的状态示意图；Fig. 13 is a schematic diagram of the state when the process cartridge of the present invention is taken out from the image forming apparatus;
图14为图13中B的局部放大示意图。FIG. 14 is a partially enlarged schematic diagram of B in FIG. 13 .
具体实施方式detailed description
下面通过具体实施方式并结合附图对本发明做进一步的说明，应当理解，此处所描述的具体实施例仅用于解释本发明，但不限于本发明。The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.
如图1至图9所示，本发明的处理盒设置有处理盒壳体20，位于壳体20上的感光鼓驱动组件，以及一个控制感光鼓驱动组件上的动力接收头40收缩的驱动杆30。As shown in Figures 1 to 9, the process cartridge of the present invention is provided with a process cartridge housing 20, a photosensitive drum drive assembly positioned on the housing 20, and a drive rod that controls the contraction of the power receiving head 40 on the photosensitive drum drive assembly 30.
壳体20上设置有导电端25和驱动端24，导电端25上设置有导电片（未示出）等电连接元件；驱动端24设置有动力接收头40。当处理盒装入图像形成装置时，导电端25与图像形成装置建立电连接；驱动端24与图像形成装置驱动头1连接，接收图像形成装置的驱动力。The housing 20 is provided with a conductive end 25 and a driving end 24 , and the conductive end 25 is provided with electrical connection elements such as a conductive sheet (not shown); the driving end 24 is provided with a power receiving head 40 . When the process cartridge is loaded into the image forming device, the conductive end 25 is electrically connected to the image forming device; the driving end 24 is connected to the driving head 1 of the image forming device to receive the driving force of the image forming device.
驱动杆30可绕壳体20上的支点22转动，支点22设置为盒体侧壁23上的一个定位柱。驱动杆30上设置有一个与壳体侧壁23的定位柱配合的定位孔32，一个用于与感光鼓驱动组件配合的迫推部33，一个用于从图像形成装置取出过程中与图像形成装置的导轨60结合的控制部31。The driving rod 30 can rotate around the fulcrum 22 on the housing 20 , and the fulcrum 22 is set as a positioning column on the side wall 23 of the box body. The driving rod 30 is provided with a positioning hole 32 that cooperates with the positioning column of the housing side wall 23, a pushing portion 33 that is used to cooperate with the photosensitive drum drive assembly, and a pusher portion 33 that is used to cooperate with the image forming device during removal from the image forming device. The guide rail 60 of the device is combined with the control part 31 .
图5为感光鼓驱动组件的分解视图，本发明的感光鼓驱动组件包括：一个从图像形成装置接收驱动力的动力接收头40，与感光鼓（未示出）配合的鼓齿轮44，位于鼓齿轮44和动力接收头40之间的第一弹性元件43，置于第一弹性元件43上面的压块42，在压块42和动力接收头40之间还设置有一个楔形块41，连接动力接收头40，压块42和楔形块41的销钉46，连接并限制动力接收头40轴向运动的限位元件，以及一个与楔形块41配合的鼓支架50。Figure 5 is an exploded view of the photosensitive drum drive assembly, the photosensitive drum drive assembly of the present invention includes: a power receiving head 40 that receives driving force from the image forming device, a drum gear 44 that cooperates with the photosensitive drum (not shown), and is located on the drum The first elastic element 43 between the gear 44 and the power receiving head 40, the pressing block 42 placed on the first elastic element 43, and a wedge block 41 is also arranged between the pressing block 42 and the power receiving head 40 to connect the power The receiving head 40 , the pressing block 42 and the pin 46 of the wedge block 41 , the limiting element that is connected to limit the axial movement of the power receiving head 40 , and a drum bracket 50 that cooperates with the wedge block 41 .
鼓支架50上设置有两个相互平行的平面a1和a2，两个相互平行的平面a1和a2之间形成容纳部，用于容纳楔形块41。楔形块41的接触面413与两个相互平行的平面a1和a2接触。Two parallel planes a1 and a2 are arranged on the drum bracket 50 , and a receiving portion is formed between the two parallel planes a1 and a2 for receiving the wedge block 41 . The contact surface 413 of the wedge block 41 is in contact with two mutually parallel planes a1 and a2.
驱动杆30与感光鼓驱动组件的楔形块41的斜面411配合，控制动力接收头40在感光鼓（未示出）轴向方向的收缩。The driving rod 30 cooperates with the inclined surface 411 of the wedge block 41 of the photosensitive drum driving assembly to control the contraction of the power receiving head 40 in the axial direction of the photosensitive drum (not shown).
动力接收头40具有贯穿楔形块41、压块42，第一弹性体43的驱动轴402和与图像形成装置驱动头1结合的动力接收头倾斜面401。动力接收头倾斜面401相对于感光鼓轴向方向倾斜一定角度β。The power receiving head 40 has a drive shaft 402 passing through the wedge block 41 , the pressure block 42 , the first elastic body 43 and an inclined surface 401 of the power receiving head combined with the driving head 1 of the image forming device. The inclined surface 401 of the power receiving head is inclined by a certain angle β with respect to the axial direction of the photosensitive drum.
参见附图1～至图14，下面将具体描述处理盒装入图像形成装置和从图像形成装置中取出的工作原理。Referring to the accompanying drawings 1 to 14, the working principle of loading and unloading the process cartridge into and out of the image forming apparatus will be described in detail below.
当处理盒沿着图像形成装置的导轨60装入至图像形成装置时，动力接收头倾斜面401与图像形成装置驱动头1的斜面101刚好接触（如9中a所示），用户将处理盒装入图像形成装置中，动力接收头40受到力F作用后，图像形成装置驱动头1的斜面101与动力接收头40的倾斜面401滑动接触（如图9中b所示），动力接收头40在轴向方向受到力F的分力F1的作用，动力接收头40在轴向方向收缩至预定行程，达到（如图9中c所示）状态。具有上述结构的处理盒沿着图像形成装置导轨60装入图像形成装置时，动接收头40与图像形成装置驱动头1之间不会产生干涉。当处理盒在图像形成装置中安装到位时，图像形成装置驱动头1落入至动力接收头40的接收位置412内，被压缩的第一弹性体43因在轴向方向不再受到力F1的作用，将回弹至原始的位置。当图像形成装置内的电机启动后，动力接收头40与图像形成装置驱动头1啮合，动力接收头40接收图像形成装置的驱动力，从而将驱动力传递至处理盒内。When the process cartridge is loaded into the image forming device along the guide rail 60 of the image forming device, the inclined surface 401 of the power receiving head is just in contact with the inclined surface 101 of the driving head 1 of the image forming device (as shown in a in 9), and the user puts the process cartridge Installed into the image forming device, after the power receiving head 40 is subjected to the force F, the inclined surface 101 of the driving head 1 of the image forming device is in sliding contact with the inclined surface 401 of the power receiving head 40 (as shown in b in FIG. 9 ), and the power receiving head 40 is acted by the component force F1 of the force F in the axial direction, and the power receiving head 40 shrinks to a predetermined stroke in the axial direction, and reaches the state (shown as c in FIG. 9 ). When the process cartridge with the above structure is loaded into the image forming apparatus along the guide rail 60 of the image forming apparatus, there is no interference between the movable receiving head 40 and the driving head 1 of the image forming apparatus. When the process cartridge is installed in the image forming device, the image forming device driving head 1 falls into the receiving position 412 of the power receiving head 40, and the compressed first elastic body 43 is no longer subjected to the force F1 in the axial direction. function, it will spring back to its original position. When the motor in the image forming device starts, the power receiving head 40 engages with the driving head 1 of the image forming device, and the power receiving head 40 receives the driving force of the image forming device, thereby transmitting the driving force to the process box.
本发明处理盒，动力接收头倾斜面401与图像形成装置驱动头1通过斜面滑动接触，并以在轴向方向同时产生挤压收缩的方式，解决了动力接收头40与图像形成装置驱动头1装机干涉的问题，从而图像形成装置中的驱动力可以顺畅地传递到处理盒中。In the process box of the present invention, the inclined surface 401 of the power receiving head is in sliding contact with the driving head 1 of the image forming device through an inclined surface, and the power receiving head 40 and the driving head 1 of the image forming device are solved in a manner of simultaneously squeezing and shrinking in the axial direction. The problem of machine interference, so that the driving force in the image forming device can be smoothly transmitted to the process cartridge.
通过大量的实验数据论证发现，当动力接收头倾斜面401的倾斜角度β小于20°时，动力接收头倾斜面401的壁厚h太小，动力接收头倾斜面401的强度太小，不足于支撑其与图像形成装置驱动头1的动力传递动力。如图9所示，在装机过程中，动力接收头40在轴向方向受到分力F1的作用，其中，F1=F.cosβ，当β大于75°时，F1太小，不能使动力接收头40在轴向方向收缩至预定行程，而导致动力接收头40与图像形成装置驱动头1发生干涉，处理盒不能装入图像形成装置内。在本实施例中，结合装机和动力接收头40强度的因素，倾斜角度β最佳选择为55°，此时，动力接收头倾斜面401的壁厚h适中，强度足够支撑其与图像形成装置驱动头1的作用，且在轴向方向受到的力F1足够大，动力接收头40可以容易地压缩至预定行程内，处理盒可顺畅地装入图像形成装置内，并在图像形成装置内正常的工作，动力接收头倾斜面401相对于感光鼓轴向方向的倾斜角度β设置为20°～75°。It is found through a large amount of experimental data that when the inclination angle β of the inclined surface 401 of the power receiving head is less than 20°, the wall thickness h of the inclined surface 401 of the power receiving head is too small, and the strength of the inclined surface 401 of the power receiving head is too small, which is not enough It is supported to transmit power with the power of the drive head 1 of the image forming apparatus. As shown in Figure 9, during the installation process, the power receiving head 40 is affected by the component force F1 in the axial direction, wherein, F1=F.cosβ, when β is greater than 75°, F1 is too small to make the power receiving head 40 shrinks to a predetermined stroke in the axial direction, causing the power receiving head 40 to interfere with the image forming apparatus driving head 1, and the process cartridge cannot be loaded into the image forming apparatus. In this embodiment, considering the factors of the installed machine and the strength of the power receiving head 40, the optimal selection of the inclination angle β is 55°. At this time, the wall thickness h of the inclined surface 401 of the power receiving head is moderate, and the strength is sufficient to support its connection with the image forming device. Drive head 1, and the force F1 received in the axial direction is large enough, the power receiving head 40 can be easily compressed to the predetermined stroke, the process cartridge can be smoothly loaded into the image forming device, and it can work normally in the image forming device For the work, the inclination angle β of the inclined surface 401 of the power receiving head relative to the axial direction of the photosensitive drum is set to 20°-75°.
当完成打印任务后，用户将处理盒从图像形成装置中取出，手向上提处理盒上的把手21，给处理盒施加一个竖直向上的力F2，处理盒向上运动，此时，图像形成装置的导轨60压迫驱动杆30的控制部31，向驱动杆30施加一个向下的力F3。驱动杆30受到力F3的作用后，将绕支点22沿逆时针方向M旋转。驱动杆30的迫推部33将沿着楔形块41的斜面411由楔形块41的底端运动至楔形块41的顶端，在这个过程中，驱动杆30施加一个轴向向下的力至楔形块41，楔形块41由于受限于鼓支架50的两个平行的平面a1和a2，所以只能在轴向方向收缩，而不会发生左右晃动从而使得动力接收头40只在轴向方向收缩，动力接收头40与图像形成装置驱动头1脱离干涉，从而用户可沿着图像形成装置的导轨60向后顺畅地拉出处理盒。After completing the printing task, the user takes out the process box from the image forming device, lifts the handle 21 on the process box upwards, applies a vertical upward force F2 to the process box, and the process box moves upwards. At this time, the image forming device The guide rail 60 presses the control portion 31 of the driving rod 30 to apply a downward force F3 to the driving rod 30 . After the driving rod 30 receives the action of the force F3, it will rotate around the fulcrum 22 in the counterclockwise direction M. The forcing part 33 of the driving rod 30 will move along the inclined surface 411 of the wedge block 41 from the bottom end of the wedge block 41 to the top end of the wedge block 41. During this process, the driving rod 30 applies an axial downward force to the wedge. Block 41, the wedge-shaped block 41 is limited by the two parallel planes a1 and a2 of the drum bracket 50, so it can only shrink in the axial direction, without shaking left and right so that the power receiving head 40 can only shrink in the axial direction , the power receiving head 40 is out of interference with the image forming device driving head 1, so that the user can smoothly pull out the process cartridge backward along the guide rail 60 of the image forming device.
在本发明中，把手21相对于导电端25设置在更靠近于驱动端24，这样用户向上提处理盒的作用力F2，相比于导电端23将更多地作用于驱动端24，位于驱动端24一侧的驱动杆30的控制部31更易与图像形成装置中的导轨60配合，更有利于驱动杆30沿逆时针旋转。本实施例中，把手21相对于处理盒插入图像形成装置的方向，设置在盒体20的下方。当用户从图像形成装置中取出处理盒时，手放在盒体下端的把手21上，自然地施加一个如图12所示的向上的力F2到处理盒上。本发明通过驱动杆30的迫推部33与楔形块41中的斜面411接触，将驱动杆30上的旋转力转换为使动力接收头40在轴向方向上收缩的力，致使动力接收头40轴向向下收缩，与图像形成装置驱动头1完全脱离，从而完成处理盒的取出。In the present invention, the handle 21 is arranged closer to the driving end 24 relative to the conductive end 25, so that the active force F2 of the user lifting the process cartridge will act more on the driving end 24 than the conductive end 23, and is located at the driving end 24. The control part 31 of the driving rod 30 on the side of the end 24 is easier to cooperate with the guide rail 60 in the image forming device, which is more conducive to the counterclockwise rotation of the driving rod 30 . In this embodiment, the handle 21 is disposed below the cartridge body 20 relative to the direction in which the process cartridge is inserted into the image forming apparatus. When the user takes out the process cartridge from the image forming apparatus, he puts his hand on the handle 21 at the lower end of the cartridge body, and naturally applies an upward force F2 as shown in FIG. 12 to the process cartridge. The present invention converts the rotational force on the drive rod 30 into a force that shrinks the power receiving head 40 in the axial direction through the contact of the forcing portion 33 of the driving rod 30 with the inclined surface 411 in the wedge block 41, so that the power receiving head 40 The axial direction is contracted downward, and it is completely separated from the drive head 1 of the image forming device, thereby completing the removal of the process cartridge.
本发明感光鼓驱动组件上创新地设计有楔形块41，楔形块41设置有一个倾斜角度为Ф的斜面411。楔形块41的斜面411与驱动杆30的迫推部33的形状相互对应，所以楔形块41的斜面411的倾斜角度Ф应控制在一定的角度内，才能使得驱动杆30的迫推部33与斜面411配合良好。倾斜角度Ф太大或者太小，驱动杆30的迫推部33都不能沿着楔形块41的斜面411顺利地向上运动而将动力接收头40压入至鼓齿轮44内。经过大量的实验得知，当楔形块41的斜面411的倾斜角度Ф小于20度时，动力接收头40的轴向收缩行程过小，不能使得动力接收头40完成从图像形成装置驱动头1中的脱离，从而导致处理盒与图像形成装置干涉，不能从图像形成装置中取出。当楔形块41的斜面411的倾斜角度Ф大于70°时，楔形块41在将驱动杆30的旋转力转换为楔形块41轴向方向运动力时，驱动杆30受制于楔形块41的斜面411轴向方向的力过大，驱动杆30的旋转受阻，不能完成作用力方向的转换，导致动力接收头40不能在轴向方向正常收缩。本实施例中，为使楔形块41与驱动杆30正常配合，保证动力接收头40在轴向方向顺畅地收缩，倾斜角度Ф优选地为35°。本发明中楔形块41的斜面411的倾斜角度Ф可以设置为20°～70°。具有上述结构的楔形块41，可以实现将驱动杆30的旋转力转化为使动力接收40收缩的轴向力，从而实现动力接收头40在轴向方向自由收缩。A wedge-shaped block 41 is innovatively designed on the photosensitive drum driving assembly of the present invention, and the wedge-shaped block 41 is provided with a slope 411 with an inclination angle of Φ. The shape of the inclined surface 411 of the wedge-shaped block 41 and the forcing portion 33 of the drive rod 30 correspond to each other, so the inclination angle Ф of the inclined surface 411 of the wedge-shaped block 41 should be controlled within a certain angle, so that the forcing portion 33 of the driving rod 30 can be aligned with the The bevel 411 fits well. If the inclination angle Φ is too large or too small, the pushing portion 33 of the driving rod 30 cannot smoothly move upward along the slope 411 of the wedge block 41 to press the power receiving head 40 into the drum gear 44 . After a lot of experiments, it is found that when the inclination angle Ф of the inclined surface 411 of the wedge block 41 is less than 20 degrees, the axial contraction stroke of the power receiving head 40 is too small, and the power receiving head 40 cannot complete the drive head 1 of the image forming device. The disengagement of the process cartridge causes the interference of the process cartridge with the image forming apparatus and cannot be removed from the image forming apparatus. When the inclination angle Φ of the slope 411 of the wedge block 41 is greater than 70°, when the wedge block 41 converts the rotational force of the drive rod 30 into the axial movement force of the wedge block 41, the drive rod 30 is constrained by the slope 411 of the wedge block 41 If the force in the axial direction is too large, the rotation of the driving rod 30 is blocked, and the conversion of the force direction cannot be completed, resulting in the failure of the power receiving head 40 to shrink normally in the axial direction. In this embodiment, in order to make the wedge block 41 cooperate with the driving rod 30 normally and ensure that the power receiving head 40 shrinks smoothly in the axial direction, the inclination angle Φ is preferably 35°. In the present invention, the inclination angle Φ of the slope 411 of the wedge block 41 can be set at 20°-70°. The wedge block 41 with the above structure can convert the rotational force of the driving rod 30 into an axial force for contracting the power receiving head 40 , so that the power receiving head 40 can freely contract in the axial direction.
处理盒从图像形成装置中取出时，驱动杆30的控制部31被图像形成装置的导轨60压迫，驱动杆30将绕支点22做旋转运动。驱动杆30的控制部31一端受到图像形成装置施加的压迫力F3，而迫推部33一端受到的力的大小由驱动杆30中的控制部31到支点22的距离与迫推部33到支点22的距离的长度比决定。本实施例中，盒体上的支点22与定位孔32的中心重合，控制部31与迫推部33分别至支点距离等于控制部31与迫推部33分别到定位孔32的距离。控制部31到支点22的距离设置为L1，迫推部33至支点22的距离为L2。经过大量的实验数据论证表明，当L1：L2为1：5时，迫推部33刚好能够使动力接收头40轴向收缩到预定行程，此时动力接收头40与图像形成装置驱动头1脱离接触，当L1:L2少于1:5时，驱动杆30旋转时受到楔形块41的斜面411反作用力过大，驱动杆30的旋转运动受阻。当L1：L2为5：1时，迫推部33受到的力刚好使得动力驱动头40轴向收缩到特定行程，当L1：L2大于5:1时，动力接收头40受到驱动杆30旋转力过小，不能使动力接收头40收缩到预定行程，造成干涉。在本实施例中，为使驱动杆30能够自由旋转并能使动力接收头40在轴向方向收缩，L1：L2优选地设计为3:4。所以本发明处理盒中驱动杆30中的控制部31到支点22的距离L1与迫推部33到支点22的距离L2的长度比为1:5～5:1。When the process cartridge is taken out from the image forming apparatus, the control portion 31 of the driving lever 30 is pressed by the guide rail 60 of the image forming apparatus, and the driving lever 30 will rotate around the fulcrum 22 . One end of the control part 31 of the drive rod 30 is subjected to the pressing force F3 applied by the image forming device, and the force received by the one end of the forcing part 33 is determined by the distance from the control part 31 in the drive rod 30 to the fulcrum 22 and the distance from the forcing part 33 to the fulcrum. 22 is determined by the length ratio of the distance. In this embodiment, the fulcrum 22 on the box coincides with the center of the positioning hole 32 , and the distance from the control part 31 and the forcing part 33 to the fulcrum is equal to the distance from the control part 31 and the forcing part 33 to the positioning hole 32 respectively. The distance from the control part 31 to the fulcrum 22 is set as L1, and the distance from the forcing part 33 to the fulcrum 22 is set as L2. A large amount of experimental data demonstrates that when L1:L2 is 1:5, the forcing part 33 can just make the power receiving head 40 shrink axially to the predetermined stroke, and at this time the power receiving head 40 is separated from the driving head 1 of the image forming device In contact, when L1:L2 is less than 1:5, the drive rod 30 receives too much reaction force from the slope 411 of the wedge block 41 when it rotates, and the rotation of the drive rod 30 is hindered. When L1:L2 is 5:1, the force received by the pushing part 33 is just enough to cause the power drive head 40 to shrink axially to a specific stroke; when L1:L2 is greater than 5:1, the power receiving head 40 is subjected to the rotational force of the drive rod 30 If it is too small, the power receiving head 40 cannot be retracted to the predetermined stroke, causing interference. In this embodiment, in order to enable the driving rod 30 to rotate freely and enable the power receiving head 40 to shrink in the axial direction, L1:L2 is preferably designed as 3:4. Therefore, the length ratio of the distance L1 from the control part 31 to the fulcrum 22 in the driving rod 30 of the process cartridge of the present invention and the distance L2 from the pushing part 33 to the fulcrum 22 is 1:5˜5:1.
本发明处理盒通过控制驱动杆30中的控制部31到支点32的距离与迫推部33到支点22的距离的长度比L1：L2，从而使驱动杆30控制动力接收头40在轴向方向的收缩，达到处理盒的动力接收头40与图像形成装置中的图像形成装置驱动头1能自由啮合和脱离啮合，顺畅而稳定地将图像形成装置中的动力传输至处理盒中。The process box of the present invention controls the length ratio L1:L2 of the distance from the control part 31 to the fulcrum 32 in the drive rod 30 and the distance from the forcing part 33 to the fulcrum 22, so that the drive rod 30 controls the power receiving head 40 in the axial direction The contraction of the power receiving head 40 of the process box and the image forming device driving head 1 in the image forming device can be freely engaged and disengaged, and the power in the image forming device is transmitted to the process box smoothly and stably.
以上实施例仅用于说明本发明的技术方案，而非对其限制，尽管参照前述实施例对本发明进行了详细的说明，但是本领域的普通技术人员应当理解；其依然可以对前述实施例所记载的实施方案进行等同替换；而这些修改和替换，并不使相应的技术方案的本质脱离本发明实施方案的精神和范围。The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand; The recorded embodiments are subject to equivalent replacements; and these modifications and replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the embodiments of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263132.3ACN104035311B (en) | 2014-06-14 | 2014-06-14 | A kind of handle box |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263132.3ACN104035311B (en) | 2014-06-14 | 2014-06-14 | A kind of handle box |
| Publication Number | Publication Date |
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| CN104035311A CN104035311A (en) | 2014-09-10 |
| CN104035311Btrue CN104035311B (en) | 2016-09-21 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201410263132.3AExpired - Fee RelatedCN104035311B (en) | 2014-06-14 | 2014-06-14 | A kind of handle box |
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| CN (1) | CN104035311B (en) |
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