A transmission clutch device

Abstract

The present application belongs to the technical field of printer mechanical structure, more specifically, especially to a transmission clutch device. The transmission clutch device comprises a clutch device, a planetary gear assembly, an electromagnet assembly and a square shaft. One end of the square shaft is provided with the planetary gear assembly, the main body position is provided with the clutch device, one side of the planetary gear assembly is provided with the electromagnet assembly, the planetary gear assembly can rotate and drive the clutch device to work through the square shaft, and the electromagnet assembly can prevent the rotation of the planetary gear assembly to realize the function of rotating half a circle or a specified angle. The present application has the advantages and positive effects that: due to the above technical scheme, the function of rotating half a circle or a specified angle of the clutch ON / OFF in the prior art is solved, and the functions of rotating one circle, rotating half a circle and rotating a specified angle are realized by adding or reducing the setting of the unlocking rod.

Description

Technical Field

[0001] This invention belongs to the field of printer mechanical structure technology, and more specifically, relates to a transmission clutch device. Background Technology

[0002] Currently, image forming equipment such as printers, copiers, fax machines, and multifunction printers typically employ friction-type electromagnetic clutches, toothed gear structures, and spring-type one-way clutches to control paper feeding time.

[0003] The toothed gear structure utilizes an incomplete gear and an electromagnetic clutch to achieve intermittent paper feeding. The toothed gear structure can only achieve the function of one revolution of the clutch ON / OFF, and cannot achieve the function of transferring the paper or specifying the angle. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a field of printer mechanical structure technology, and more specifically, relates to a transmission clutch device.

[0005] The technical solution adopted in this invention is: a transmission clutch device, characterized in that it comprises:

[0006] A clutch device, the clutch device including a paper pick-up roller, the paper pick-up roller being provided with a separating plate, the paper pick-up roller being able to engage or disengage with the separating plate;

[0007] A planetary gear assembly is connected to the paper-feeding roller via a square shaft. The rotation of the planetary gear assembly can drive the rotation of the paper-feeding roller through the square shaft.

[0008] An electromagnet assembly is disposed on one side of the planetary gear assembly and can drive the planetary gear assembly to rotate and / or adjust the direction of rotation.

[0009] Furthermore, the planetary gear assembly includes an internal gear, a planet carrier, planet gears, and a sun gear.

[0010] The internal gear is connected to the planetary carrier;

[0011] The sun gear shares a connection hole with the planet carrier and the internal gear, which is located at the center of the planet carrier. The connection hole can be used for the placement and fixation of the square shaft, and connects the planet gear assembly with the clutch device.

[0012] At least two planetary gears are disposed on both sides of the sun gear, and the racks of the planetary gears may be disposed between the planet carrier and the rack of the sun gear.

[0013] Furthermore, a sliding groove is provided on the inner side of the planetary carrier, and the internal gear is connected to one side of the planetary carrier through the sliding groove.

[0014] Furthermore, the planetary carrier assembly also includes an unlocking rod. The outer port of the planetary carrier is provided with a central hole, and the unlocking rod is connected to the planetary carrier through the central hole and can rotate within the sliding groove of the planetary carrier.

[0015] Furthermore, the planetary carrier assembly also includes a return spring, the planetary carrier is provided with a fixing post, and the two ends of the return spring are respectively connected to the unlocking rod and the fixing post.

[0016] Furthermore, the electromagnet assembly includes an electromagnet, a compression spring, a sliding locking rod, and an iron core. The compression spring and the sliding locking rod are respectively disposed at both ends of the electromagnet. The sliding locking rod is disposed near the planetary gear assembly, and the iron core is disposed on one side of the electromagnet.

[0017] Furthermore, the electromagnet can be energized to drive the sliding locking rod to move, thereby preventing the internal gear from rotating.

[0018] Furthermore, the unlocking lever can disengage the sliding locking lever, causing the planetary carrier and the planetary carrier assembly to rotate and drive the paper pick-up roller to rotate.

[0019] Furthermore, there is at least one unlocking lever.

[0020] The advantages and positive effects of this invention are: by adopting the above technical solution, the problem of the clutch ON / OFF not being able to rotate half a turn or a specified angle in the prior art is solved, and the functions of rotating one turn, half a turn, and a specified angle are achieved by adding or reducing the setting of the unlocking lever. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the internal structure of the paper-feeding roller and a schematic diagram of the paper-feeding method according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the paper-taking roller structure according to an embodiment of the present invention;

[0023] Figure 3 This is a structural schematic diagram of an embodiment of the present invention;

[0024] Figure 4 This is a side view of the application structure according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the planetary gear assembly structure according to an embodiment of the present invention;

[0026] In the picture:

[0027] 1. The arc part of the crescent-shaped paper pick-up roller; 2. Bushing; 3. Paper pick-up roller.

[0028] 4. Paper 5. Separator 6. Conveyor Roller

[0029] 7. Square shaft; 8. Paper guide wheel; 9. Planetary carrier

[0030] 10. Sun gear; 11. Internal gear; 12. Return spring

[0031] 13. Unlocking lever; 14. Electromagnet; 15. Compression spring

[0032] 16. Iron core; 17. Fixing buckle; 18. Sliding locking rod

[0033] 19. Planetary Wheel Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, in the following description, descriptions of well-known structures are omitted to avoid unnecessarily obscuring the concept of the invention.

[0035] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0036] In the description of the embodiments of this invention, it should be understood that the terms "top," "bottom," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0037] Figure 1 A schematic diagram of an embodiment of the present invention is shown, specifically illustrating the structure of this embodiment. This embodiment relates to a printer drive clutch device. In the field of printer technology, to achieve intermittent paper feeding function, a crescent-shaped paper feed roller technology is adopted, such as... Figure 1As shown, the outer side of the paper-taking roller 1 is covered with a bushing 2 and a paper-taking sleeve. In this embodiment, the bushing 2 is made of an anti-adhesion material to ensure the safety protection inside the paper-taking roller. The paper-taking sleeve is provided on the outer side for quickly clearing the paper and is fitted into the bushing 2 and the outer side of the device. When taking paper, the semi-circular arc part 1 of the paper-taking roller is used to rub the paper. After the paper is rubbed, the arc part 1 leaves the separation plate 5 to release the pressure on the paper, so that the paper is moved out and the next conveying roller 5 can transport the paper away.

[0038] The apparatus provided in this embodiment of the invention includes a paper-feeding roller assembly A, a planetary gear assembly B, an electromagnet assembly C, and a square shaft, as shown below. Figure 3 As shown, a planetary gear assembly B is fixed to one end of the square shaft 7, a paper feeding roller assembly A is provided on the main body of the square shaft 7, and an electromagnet assembly C is provided on one side of the planetary gear assembly B. The rotation of the planetary gear assembly B can drive the square shaft 7 to rotate, and at the same time realize the paper feeding roller assembly A to feed and remove the paper. The electromagnet assembly C can stop or rotate the planetary gear assembly B.

[0039] Planetary gear assembly B includes, for example: Figure 4-5 The planet carrier 9, internal gear 11, sun gear 10, and planet gear 19 are shown. The planet carrier 9 is as follows: Figure 5 As shown, a sliding groove is provided, and the side of the internal gear 11 is connected to the sliding groove and is provided on one side of the planetary carrier 9. The planetary carrier 9 also includes a return spring 12 and an unlocking rod 13. The unlocking rod 13 is connected to one end of the return spring 12 through a central hole provided on the side of the planetary carrier 9. The other end of the return spring 12 is fixed to a fixed post inside the planetary carrier 9, so that the unlocking rod 13 can retract at the central hole through the retraction of the return spring 12.

[0040] Electromagnet assembly C includes, for example: Figure 4 The electromagnet 14, compression spring 15, iron core 16, fixing buckle 17, and sliding locking rod 18 shown are provided. The two ends of the electromagnet 14 are respectively provided with compression spring 15 and sliding locking rod 18. The sliding locking rod 18 can slide to the planet carrier 9 to block the rotation of the rack on the outside of the internal gear 11, so that the planet gear assembly B cannot rotate. The electromagnet 14 is fixed by the fixing buckle 17 on the outside to prevent the electromagnet 14 from falling. The iron core 16 is set close to the sliding locking rod 17 to ensure that the sliding locking rod 18 is lowered to a lower position.

[0041] like Figure 3-4 As shown, the sun gear 10 is connected to the internal gear 11 via the planetary gear 19 and the planetary carrier 9. The planetary carrier 9 is connected to the paper-taking wheel 3 via the square shaft 7.

[0042] like Figure 3-5 As shown, the unlocking lever 13 is connected to the planetary carrier 9 through the central hole and can rotate freely in the slot on the planetary carrier. The reset spring 12 connects the unlocking lever 13 and the planetary carrier 9 through two fixed posts.

[0043] When the sun gear 10 rotates clockwise, the paper take-up roller assembly A, due to the load, keeps both the square shaft 7 and the planetary carrier at a stop. At this time, the internal gear 11, being unsecured, rotates counterclockwise, releasing the torque transmitted by the sun gear 20. When the electromagnet 14 is ON (engaged), the iron core 16 compresses the spring 15, simultaneously pushing the sliding locking lever 18 to block the pawl on the internal gear, preventing the internal gear 11 from rotating. At this time, the torque of the sun gear 10 is transmitted to the planetary carrier 9, driving the paper take-up roller assembly A to rotate clockwise to achieve the paper take-up action. The planetary carrier, carrying the unlocking lever 13, rotates clockwise. When the unlocking lever 13 rotates to the sliding locking lever 18, it pushes the sliding locking lever 18 downward to move away from the pawl of the internal gear. The internal gear 11 begins to rotate, while the planetary carrier and the paper take-up roller assembly stop rotating.

[0044] By controlling the push-pull electromagnet 14ON / OFF once, the paper pick-up roller rotates one revolution.

[0045] In this embodiment of the invention, the number of heads on the unlocking lever can be changed to enable the push-pull electromagnet to ON / OFF once, thereby enabling the output end to rotate intermittently and rotate at a specific angle.

[0046] The advantages and positive effects of this invention are: by adopting the above technical solution, the problem of the clutch ON / OFF not being able to rotate half a turn or a specified angle in the prior art is solved, and the functions of rotating one turn, half a turn, and a specified angle are achieved by adding or reducing the setting of the unlocking lever.

[0047] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A transmission clutch device, characterized in that, include: A clutch device, the clutch device including a paper-taking roller, the paper-taking roller being provided with a separating plate, the paper-taking roller being able to engage or disengage with the separating plate; A planetary gear assembly is provided, which is connected to the paper feed roller via a square shaft. The rotation of the planetary gear assembly can drive the internal rotation of the paper feed roller through the square shaft. The planetary gear assembly includes an internal gear and a planetary carrier. The internal gear is connected to the planetary carrier. A sliding groove is provided on the inner side of the planetary carrier. The internal gear is connected to one side of the planetary carrier through the sliding groove. The planetary gear assembly also includes an unlocking rod. A central hole is provided on the side of the planetary carrier. The unlocking rod is connected to the planetary carrier through the central hole and can rotate within the sliding groove of the planetary carrier. An electromagnet assembly is disposed on one side of the planetary gear assembly and can drive the planetary gear assembly to rotate and / or adjust the rotation direction. The electromagnet assembly includes a sliding locking rod, and an unlocking rod can disengage the sliding locking rod to cause the planetary carrier and the planetary gear assembly to rotate and drive the paper pick-up roller to rotate.

2. The transmission clutch device according to claim 1, characterized in that, The planetary gear assembly also includes planetary gears and a sun gear. The sun gear shares a connection hole with the planet carrier and the internal gear, which is located at the center of the planet carrier. The connection hole can be used for the placement and fixation of the square shaft, and connects the planet gear assembly with the clutch device. At least two planetary gears are disposed on both sides of the sun gear, and the racks of the planetary gears may be disposed between the planet carrier and the rack of the sun gear.

3. The transmission clutch device according to claim 1, characterized in that, The planetary gear assembly also includes a return spring, the planetary carrier is provided with a fixing post, and the two ends of the return spring are respectively connected to the unlocking rod and the fixing post.

4. The transmission clutch device according to claim 1, characterized in that, The electromagnet assembly also includes an electromagnet, a compression spring, and an iron core. The compression spring and the sliding locking rod are respectively disposed at both ends of the electromagnet. The sliding locking rod is disposed near the planetary gear assembly, and the iron core is disposed on one side of the electromagnet.

5. The transmission clutch device according to claim 4, characterized in that, The electromagnet can be energized to drive the sliding locking rod to move, which can prevent the internal gear from rotating.

6. The transmission clutch device according to claim 1, characterized in that, There shall be at least one unlocking lever.

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