A driving force receiving and transmitting device and a processing box

Abstract

The present invention relates to a receiving and transmitting device for driving force and a processing box, the receiving and transmitting device for driving force comprises a gear sleeve installed on an induction drum and a driving shaft with a driving head at one end, the driving shaft can move axially and can be rotatably installed on the gear sleeve within a certain range while moving axially; when the powder box is installed and used, the driving rod of the machine is connected to the driving head of the driving shaft to rotate the driving shaft, and the driving shaft moves axially outward at the same time, so that the driving head and the driving rod are fully engaged and hold each other tightly; when the driving rod is separated from the driving head of the driving shaft, the driving shaft automatically rotates in the opposite direction and moves axially inward to achieve automatic resetting. In this way, the problem of the dead point of the existing processing box driving head and the problem of difficulty in engagement and lag in frequently and quickly switching the processing box during color printing can be solved, the printing performance is stable and reliable, the application range is wide, and the structure is simple and ingenious, the production and processing are easy, the cost is low, and it is conducive to wide application.

Description

Technical Field

[0001] The invention belongs to the technical field of photosensitive drums and processing boxes, and in particular relates to a receiving and transmitting device for driving force of a photosensitive drum and a toner box using the receiving and transmitting device for driving force. Background Art

[0002] At present, the processing boxes used in the existing black and white / color printers, copiers, fax machines and multi-function machines on the market (including original manufacturers and compatible manufacturers) generally adopt a universal drive head structure, but the structure of the universal drive head is relatively complex, and the processing accuracy requirements are high. It is easy to have processing errors, which may cause the drive head and the printer drive part to become loose or mismatched. At the same time, the processing difficulty and cost are high. In addition, during installation, the drive head is prone to have a dead point, which makes it impossible for the drive head to be smoothly inserted into the drive port and repeated operations, or the connection is loose and not ideal, resulting in uneven and unstable transmission force.

[0003] In addition, existing color printers, copiers, fax machines and multifunction machines require frequent and rapid switching of processing boxes during operation, but it is difficult for the high-speed rotating drive rod to fully engage with the existing universal drive head, resulting in a long switching time for the processing box, resulting in extended printing and copying time. Summary of the invention

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a new driving force receiving and transmission device and processing box, which can rotate and extend the driving head when working, fully engage and hold the machine driving rod, and automatically rotate and retract to reset when not working. The printing performance is stable and reliable, the application range is wide, and the structure is simple and ingenious, the production and processing are easy, and the cost is low.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A novel device for receiving and transmitting driving force comprises a gear sleeve mounted on an induction drum and a driving shaft with a driving head at one end, wherein the driving shaft can move axially and can be rotatably mounted on the gear sleeve within a certain range while moving axially; when a powder box is installed and used, a driving rod of the machine is connected to the driving head of the driving shaft to rotate the driving shaft, and at the same time, the driving shaft moves axially outward, so that the driving head and the driving rod are fully engaged and tightly embraced; when the driving rod is separated from the driving head of the driving shaft, the driving shaft automatically rotates in the opposite direction and moves axially inward to achieve automatic resetting.

[0007] Furthermore, an outer cavity and an inner cavity are respectively provided inside the outer end and the inner end of the gear sleeve, the drive shaft is sequentially inserted into the outer cavity and the inner cavity, and an axial motion driving component and a rotational reset driving component acting on the drive shaft are respectively provided in the outer cavity and the inner cavity, and a guide structure for axial motion and rotational motion is provided between the gear sleeve and the drive shaft.

[0008] Furthermore, the axial driving member is a spring a sleeved on the driving shaft, and the rotational reset driving member is a spring b or a spring sleeved on the driving shaft; wherein the spring a is in a compressed state, and the outer end and the inner end respectively support the driving shaft and the gear sleeve; the outer end and the inner end of the spring b are respectively connected and fixed to the driving shaft and the gear sleeve, or the outer end and the inner end of the spring are respectively connected and fixed to the gear sleeve and the driving shaft.

[0009] Furthermore, an inner cavity is provided inside the inner end of the gear sleeve, the drive shaft is inserted into the inner cavity, and a rotational reset driving member acting on the drive shaft is provided in the inner cavity. At the same time, a guide structure for axial movement and rotational movement is provided between the gear sleeve and the drive shaft, and an axial movement driving member is provided at the inner end of the drive shaft. The axial movement driving member is an elastic support rod, which is bent and deformed during assembly and abutted against the bottom cover.

[0010] Furthermore, the inner cavity of the gear sleeve is an open cavity, and a bottom cover is provided at the open end, and a circular spring mounting groove and a spring bayonet are provided on the side where the bottom cover is connected to the inner cavity; a bayonet pin is provided on the driving shaft located in the inner cavity; a hook is provided at the outer end of the spring b, and a clamping tail is provided at the inner end; during assembly, the spring b is sleeved on the driving shaft, and the hook at the outer end is hooked on the bayonet pin, the inner end of the spring b is installed in the spring mounting groove, and the clamping tail is clamped in the spring bayonet.

[0011] Furthermore, the guide structure includes an arc-shaped left guide slide and a right guide slide, and the bayonet; the left guide slide and the right guide slide gradually tilt outward along the rotation direction of the driving rod, and are point-symmetrical with the driving shaft as the rotation center; during assembly, the two ends of the bayonet can be slidably installed on the left guide slide and the right guide slide respectively.

[0012] Furthermore, both ends of the left guide slide and the right guide slide are provided with a raised rotation limiting portion; when the drive head and the drive rod are fully engaged and tightly embraced with each other, the two ends of the pin respectively abut against the rotation limiting portion at the outer ends of the left guide slide and the right guide slide; when the drive shaft is automatically reset, the two ends of the pin respectively abut against the rotation limiting portion at the inner ends of the left guide slide and the right guide slide.

[0013] Furthermore, gears may be provided at both ends of the bayonet, and the surfaces of the left guide slide and the right guide slide are provided with teeth matching the gears; during assembly, the gears at both ends of the bayonet are respectively meshed and connected with the teeth on the left guide slide and the right guide slide.

[0014] Furthermore, the guide structure includes an arc-shaped left guide groove and a right guide groove arranged on the inner side wall of the inner cavity, and the bayonet; the left guide groove and the right guide groove are gradually spirally arranged outward along the direction of the driving rod, and are point-symmetrical with the driving shaft as the rotation center; during assembly, the two end portions of the bayonet can be slid back and forth in the left guide groove and the right guide groove respectively.

[0015] Furthermore, the left guide slot and the right guide slot are grooves with an open inner end and a closed outer end. When the drive head and the drive rod are fully engaged and hold each other tightly, the two ends of the pin respectively rest on the closed ends of the left guide slot and the right guide slot.

[0016] Furthermore, the outer cavity of the gear sleeve is an open cavity, and a protective cover is provided at the open end. A cover plate is also provided on the drive shaft, and the cover plate can move back and forth axially in the outer cavity with the drive shaft. The outer end and inner end of the spring a respectively support the cover plate and the gear sleeve.

[0017] A processing box comprises the above-mentioned receiving and transmitting device of driving force, wherein the inner end of the gear sleeve of the receiving and transmitting device of driving force is installed on the induction drum.

[0018] The beneficial effects of the present invention are:

[0019] The present invention adopts the above technical scheme, so that the drive head can be rotated and extended when working, and fully meshed and held tightly with the machine drive rod, and can automatically rotate and retract to reset when not working. It not only effectively solves the problem of dead point of the existing processing box drive head, but also solves the problem of difficult engagement and lag when frequently and quickly switching the processing box during color printing. The printing performance is stable and reliable, the application range is wide, the installation and removal operations are very easy, convenient and fast, and the structure is simple and ingenious, the production and processing are easy, the cost is low, and it is conducive to wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a novel driving force receiving and transmitting device according to the present invention;

[0021] Figure 2 It is a schematic diagram of the exploded structure of an embodiment of a novel driving force receiving and transmitting device according to the present invention;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of an embodiment of a novel driving force receiving and transmitting device according to the present invention;

[0023] Figure 4 2 is a schematic structural diagram of a gear sleeve in an embodiment of a novel driving force receiving and transmitting device according to the present invention;

[0024] Figure 5 is another structural schematic diagram of a gear sleeve in an embodiment of a novel driving force receiving and transmitting device according to the present invention;

[0025] Figure 6 This is a schematic structural diagram of an embodiment of a novel driving force receiving and transmitting device according to the present invention with the bottom cover and spring b removed;

[0026] Figure 7 2 is a schematic diagram of the structure of a spring b in an embodiment of a novel driving force receiving and transmitting device according to the present invention;

[0027] Figure 8 It is a schematic structural diagram of a bottom cover in an embodiment of a novel driving force receiving and transmitting device according to the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are used to explain the present invention.

[0029] like Figures 1 to 8 As shown in:

[0030] A novel device for receiving and transmitting driving force described in an embodiment of the present invention comprises a gear sleeve 1 mounted on an induction drum and a driving shaft 3 with a driving head 2 at one end, wherein the driving shaft 3 can move axially and can be rotatably mounted on the gear sleeve 1 within a certain range (such as 90°) while moving axially. The specific structure can be: an outer cavity 11 and an inner cavity 12 are respectively provided inside the outer end and the inner end of the gear sleeve 1, the driving shaft 3 is sequentially inserted into the outer cavity 11 and the inner cavity 12, and an axial movement driving member and a rotational reset driving member acting on the driving shaft 3 are respectively provided in the outer cavity 11 and the inner cavity 12, and a guide structure for axial movement and rotational movement is provided between the gear sleeve 1 and the driving shaft 3.

[0031] The axial drive member and the rotation reset drive member are spring a4 and spring b5 respectively; during assembly, the spring a4 and spring b5 are both sleeved on the drive shaft 3, the spring a4 is in a compressed state, and the outer end and inner end respectively support the drive shaft 3 and the gear sleeve 1, and the outer end and inner end of the spring b5 are respectively connected and fixed to the drive shaft 3 and the gear sleeve 1. Figures 3 to 6The outer cavity 11 of the gear sleeve 1 is an open cavity, and a protective cover 17 is provided at the open end. A cover plate 32 is also provided on the drive shaft 3, and the cover plate 32 can move back and forth axially in the outer cavity 11 with the drive shaft 3. The outer end and inner end of the spring a 4 respectively support the cover plate 32 and the gear sleeve 1; the inner cavity 12 of the gear sleeve 1 is an open cavity, and a bottom cover 13 is provided at the open end, and a circular spring mounting groove 131 and a spring bayonet 132 are provided on the side where the bottom cover 13 is connected to the inner cavity 12; a bayonet pin 31 is provided on the drive shaft 3 located in the inner cavity 12; a hook portion 51 is provided at the outer end of the spring b 5, and a clamping tail portion 52 is provided at the inner end, and the hook portion 51 and the clamping tail portion 52 are integrally formed with the spring b 5. The guide structure includes a circular arc-shaped left guide slide 14 and a right guide slide 15, and the bayonet 31, which are arranged in the inner cavity 12. The left guide slide 14 and the right guide slide 15 gradually tilt outward along the rotation direction of the driving rod 6, and are point-symmetrical with the driving shaft 3 as the rotation center. During assembly, the spring b5 is sleeved on the driving shaft 3, and the hook 51 at the outer end is hooked on the bayonet 31, the inner end of the spring b5 is installed in the spring installation groove 131, and the clamping tail 52 is clamped in the spring clamping mouth 132, and the two ends of the bayonet 31 are respectively installed on the left guide slide 14 and the right guide slide 15 so as to slide back and forth.

[0032] The working principle of the new driving force receiving and transmitting device described in the present invention is as follows: when the powder box is installed and used, the driving rod 6 on the machine is in contact and connected with the driving head 2 of the driving shaft 3, so that the driving shaft 3 rotates along the rotation direction of the driving rod 6, and at the same time, the driving shaft 3 moves axially outward, so that the driving head 2 and the driving rod 6 are fully engaged and tightly embraced with each other; when the driving rod 6 is separated from the driving head 2 of the driving shaft 3, the driving shaft 3 automatically rotates in the opposite direction and moves axially inward to achieve automatic resetting. Specifically, when the powder box is installed and used, the driving rod 6 of the machine is connected to the driving head 2 of the driving shaft 3 to drive the driving shaft 3 to rotate. At the same time, the axial motion driving member (compressed spring a 4) drives the driving shaft 3 to move axially outward until the driving rod 6 and the driving head 2 are fully in contact and meshed. In this process, the two ends of the bayonet 31 slide from the inner end to the outer end of the left guide slide 14 and the right guide slide 15 respectively. At the same time, the rotation reset driving member (spring b 5) is deformed under the drive of the driving shaft 3, and a restoring force opposite to the rotation direction of the driving rod 6 is generated, and acts on the driving shaft 3, so that the driving head 2 and the driving rod 6 are tightly embraced with each other; when the driving rod 6 is separated from the driving head 2 of the driving shaft 3, the driving shaft 3 rotates in the opposite direction under the action of the restoring force of the rotation reset driving member (spring b 5), and at the same time, the left guide slide 14 and the right guide slide 15 and the bayonet 31 move axially inward to achieve reset.

[0033] In this way, the new driving force receiving and transmitting device described in the present invention can make the drive head 2 rotate and extend, and fully engage and hold each other with the machine drive rod 6 when working, and can automatically rotate and retract to reset when not working. It not only effectively solves the problem of dead point of the existing processing box drive head, but also solves the problem of difficult engagement and lag when frequently and quickly switching the processing box during color printing. The printing performance is stable and reliable, the application range is wide, the installation and removal operations are very easy, convenient and fast, and the structure is simple and ingenious, easy to produce and process, low cost, and is conducive to wide application.

[0034] As a preferred solution of the present invention, both ends of the left guide slide 14 and the right guide slide 15 are provided with a raised rotation limiting portion 16; when the drive head 2 and the drive rod 6 are fully engaged and tightly embraced, the two ends of the bayonet 31 respectively abut against the rotation limiting portion 16 at the outer ends of the left guide slide 14 and the right guide slide 15; when the drive shaft 3 is automatically reset, the two ends of the bayonet 31 respectively abut against the rotation limiting portion 16 at the inner ends of the left guide slide 14 and the right guide slide 15. In this way, the axial movement and rotational movement range of the drive head 2 can be effectively limited, avoiding the problem of abnormal printing and equipment damage caused by excessive axial movement or rotational movement, and the performance is more stable and reliable.

[0035] Of course, the axial motion driving member and the rotational reset driving member may also be other deformable and automatically restoring elastic members, such as elastic sheets. Specifically, for example, the rotational reset driving member may also be a spring, whose outer end and inner end are respectively connected and fixed to the gear sleeve 1 and the driving shaft 3. Specifically, the outer end may be connected and fixed to the gear sleeve or the bottom cover 13 on the inner wall of the inner cavity 12, and the inner end may be connected and fixed to the driving shaft 3. The guide structure may also include an arc-shaped left guide slot and a right guide slot arranged on the inner side wall of the inner cavity 12, and the bayonet 31; the left guide slot and the right guide slot are gradually spirally arranged outward along the direction of the driving rod 6, and are point-symmetrical with the driving shaft 3 as the rotation center, and the left guide slot and the right guide slot can both be grooves with an open inner end and a closed outer end; during assembly, the two end portions of the bayonet 31 can be slid back and forth and stuck in the left guide slot and the right guide slot respectively, and when the driving head 2 and the driving rod 6 are fully engaged and tightly embraced with each other, the two ends of the bayonet 31 respectively abut against the closed ends of the left guide slot and the right guide slot.

[0036] In addition, gears can also be provided at both ends of the pin 31, and the surfaces of the left guide slide 14 and the right guide slide 15 are provided with teeth matching the gears; during assembly, the gears at both ends of the pin 31 are respectively meshed and connected with the teeth on the left guide slide 14 and the right guide slide 15; when the powder box is installed and used, the driving rod 6 of the machine is driven and connected with the driving head 2 of the driving shaft 3 to drive the driving shaft 3 to rotate, and at the same time, the axial movement driving member (the spring a 4 in the compressed state) drives the driving shaft 3 to move axially outward. In this process, the gears on the pin 31 mesh with the teeth on the left guide slide 14 and the right guide slide 15 until the driving rod 6 and the driving head 2 are fully in contact and meshed, and tightly hold each other; when the driving rod 6 is separated from the driving head 2 of the driving shaft 3, the driving shaft 3 automatically rotates in the opposite direction and moves axially inward to achieve automatic resetting.

[0037] Moreover, the axial motion driving member can also be an elastic support rod arranged at the inner end of the driving shaft 3. During assembly, the elastic support rod is bent and deformed, and is abutted and connected with the bottom cover 13; when the powder box is installed and used, the driving rod 6 of the machine is driven and connected with the driving head 2 of the driving shaft 3, driving the driving shaft 3 to rotate, and at the same time, the restoring force of the elastic support rod drives the driving shaft 3 to move axially outward, supporting and maintaining the upward state, so that the driving rod 6 and the driving head 2 fully contact and mesh, and tightly embrace each other.

[0038] The present invention also provides a processing box, comprising the above-mentioned receiving and transmitting device for driving force, wherein the inner end of the gear sleeve 1 of the receiving and transmitting device for driving force is installed on the induction drum.

[0039] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A device for receiving and transmitting driving force, characterized in that: The invention comprises a gear sleeve (1) mounted on an induction drum and a drive shaft (3) with a drive head (2) at one end, wherein the drive shaft (3) can move along the axial direction and can be rotatably mounted on the gear sleeve (1) within a certain range while moving along the axial direction; when the powder box is installed and used, the drive head (2) and the drive rod (6) are fully meshed and tightly embraced with each other; when the drive rod (6) is separated from the drive head (2), the drive shaft (3) automatically rotates in the opposite direction and moves inward along the axial direction to achieve automatic resetting; An outer cavity (11) and an inner cavity (12) are respectively provided inside the outer end and the inner end of the gear sleeve (1), the drive shaft (3) is sequentially inserted into the outer cavity (11) and the inner cavity (12), and an axial motion driving member and a rotational reset driving member acting on the drive shaft (3) are respectively provided in the outer cavity (11) and the inner cavity (12), and a guide structure for axial motion and rotational motion is provided between the gear sleeve (1) and the drive shaft (3); The axial motion driving member is a spring a (4) sleeved on the driving shaft (3), and the rotational reset driving member is a spring b (5) sleeved on the driving shaft (3); the outer end and the inner end of the spring b (5) are respectively connected and fixed to the driving shaft (3) and the gear sleeve (1); a bayonet (31) is provided on the driving shaft (3) located in the inner cavity (12); the outer end of the spring b (5) is provided with a hook portion (51), and the inner end is provided with a clamping tail portion (52); during assembly, the spring b (5) is sleeved on the driving shaft (3), and the hook portion (51) at the outer end is hooked on the bayonet pin (31), the inner end of the spring b (5) is installed in the spring installation groove (131), and the clamping tail portion (52) is clamped in the spring bayonet (132); The guide structure comprises a circular arc-shaped left guide slide (14) and a right guide slide (15) arranged in the inner cavity (12), and the bayonet (31); the left guide slide (14) and the right guide slide (15) are gradually inclined outward along the rotation direction of the drive rod (6), and are point-symmetrical with the drive shaft (3) as the rotation center; when assembled, the two ends of the bayonet (31) can be slidably mounted on the left guide slide (14) and the right guide slide (15) respectively; the left guide slide Both ends of the left guide slide (14) and the right guide slide (15) are provided with a raised rotation limiting portion (16); when the drive head (2) and the drive rod (6) are fully engaged and tightly embraced with each other, the two ends of the bayonet (31) respectively abut against the rotation limiting portion (16) at the outer ends of the left guide slide (14) and the right guide slide (15); when the drive shaft (3) is automatically reset, the two ends of the bayonet (31) respectively abut against the rotation limiting portion (16) at the inner ends of the left guide slide (14) and the right guide slide (15); Gears are also provided at both ends of the latch (31), and teeth matching the gears are provided on the surfaces of the left guide slide (14) and the right guide slide (15).

2. The driving force receiving and transmitting device according to claim 1, characterized in that: The outer cavity (11) of the gear sleeve (1) is an open cavity, and a protective cover (17) is provided at the open end. A cover plate (32) is also provided on the drive shaft (3). The cover plate (32) can move back and forth along the axial direction in the outer cavity (11) along with the drive shaft (3). The outer end and the inner end of the spring a (4) respectively support the cover plate (32) and the gear sleeve (1).

3. A process cartridge, characterized in that: The invention comprises a driving force receiving and transmitting device as claimed in claim 1 or 2, wherein the inner end of a gear sleeve (1) of the driving force receiving and transmitting device is mounted on an induction drum.

Images