Feeding mechanism of copying machine

Abstract

The utility model discloses a copying machine feeding mechanism, and relates to the technical field of copying machines. The device comprises a feeding box, the top of the feeding box communicates with a feeding port, and the bottom of the feeding box communicates with a discharging pipe; the stirring part comprises a mounting plate fixedly arranged on the inner wall of the discharging pipe, a guide rod coaxial with the discharging pipe rotationally penetrates through the mounting plate, the top of the guide rod extends into the feeding box, a spiral piece is fixedly arranged on the guide rod, the outer edge of the spiral piece abuts against and is in lap joint with the inner wall of the discharging pipe, and a motor is arranged on the outer wall of the discharging pipe; the guide rod and the spiral piece are rotationally arranged in the discharging pipe, the motor does work to drive the guide rod to rotate, the spiral piece stirs and scatters powdered ink at a communicating opening of the feeding box and the discharging pipe and conveys the powdered ink into the discharging pipe, the movable plate and the conical block serve as valve pieces for blocking the discharging pipe and are in linkage fit with the guide rod, and therefore the discharging pipe can be sealed. The ink powder is stirred and scattered during feeding, and is closed when feeding is not carried out, so that feeding blockage is avoided, and normal printing of files is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of copiers, and in particular to a feeding mechanism of a copier. Background Art

[0002] A photocopier is an electrostatic copier, which is a device that uses electrostatic technology to copy documents. A photocopier is an analog device that can only copy documents truthfully. The pigments used for copying are mainly divided into two types: liquid ink and powdered toner. For a photocopier that uses toner for copying, the toner supply bin is an important component used to continuously supply toner to the photocopier.

[0003] The existing toner supply bin has a simple structure and a single box body with a powder outlet at the bottom. The powder outlet is provided with a valve for opening and closing. Since the particle size of the toner is extremely small, the toner supply bin of the copier in the prior art often has toner accumulation and agglomeration during operation, which not only leads to insufficient use of the toner, resulting in a large amount of toner remaining in the toner supply bin, but also causes the powder outlet of the toner supply bin to be blocked, causing the copier to fail to print, the printed document to be partially unclear, and other malfunctions. Therefore, the present application proposes a feeding mechanism for a copier. Utility Model Content

[0004] The purpose of the present application is to provide a feeding mechanism for a copier to solve the problem that the toner supply bin of the existing copier has a simple structure and is prone to toner accumulation and agglomeration, resulting in blockage of the toner outlet and affecting normal printing.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A feeding mechanism for a copy machine, comprising:

[0007] A feed box, the top of which is connected to a feed port, and the bottom of which is connected to a discharge pipe;

[0008] The stirring member comprises a mounting plate fixedly mounted on the inner wall of the discharge pipe, a guide rod coaxial with the discharge pipe rotatably penetrates the mounting plate, the top of the guide rod extends into the feed box, a spiral sheet is fixedly mounted on the guide rod, and the outer edge of the spiral sheet is in contact with and overlaps the inner wall of the discharge pipe, a motor is arranged on the outer wall of the discharge pipe, and the output shaft of the motor is connected to the guide rod through a first bevel gear assembly;

[0009] The valve component includes a ring plate arranged at the bottom end of a discharge pipe, a movable plate is slidably arranged in the discharge pipe and above the ring plate, a conical groove is penetrated through the top of the movable plate, a conical block which is plugged into the conical groove is arranged at the bottom end of the guide rod, a spring is connected between the movable plate and the ring plate, a linkage member is arranged between the guide rod and the movable plate, and when the guide rod rotates, the linkage member drives the movable plate to slide back and forth.

[0010] Further, the linkage member includes a conical block provided at the top of the movable plate, an L-shaped rod is provided on the guide rod, a ball is rotatably inserted at the free end of the L-shaped rod, and the ball is in rolling lap joint with the top of the movable plate.

[0011] Further, a cavity is formed in the inner wall of the mounting plate, and the first bevel gear assembly is located in the cavity.

[0012] Further, a rotating rod is rotatably provided on one inner wall of the feeding box, a plurality of stirring blades are arranged in an array on the rotating rod, and the free end of the rotating rod is in transmission connection with the guide rod through a second bevel gear assembly.

[0013] Further, a sleeve is provided on the inner wall of the feeding box, the ends of the guide rod and the rotating rod rotatably penetrate through the sleeve, and the second bevel gear assembly is located in the sleeve.

[0014] Further, a conduit communicating with the conical groove is provided at the bottom end of the movable plate, and the bottom end of the conduit slidably penetrates through the ring plate.

[0015] Further, the bottom of the feeding box is of an inclined structure, and the discharge pipe is communicated with the end with a lower inclination.

[0016] Further, the feeding box includes a box body and a box cover, a first clamping ring is provided on the inner wall of the opening of the box body, and a second clamping ring clamped and matched with the first clamping ring is provided at the bottom of the box cover.

[0017] The beneficial effects of the present application are as follows:

[0018] In the present application, a guide rod and a spiral blade are rotatably arranged in the discharge pipe, the motor does work to drive the guide rod to rotate, the spiral blade stirs and disperses the toner at the communication port of the feeding box and the discharge pipe, and conveys the toner into the discharge pipe. The movable plate and the conical block serve as valve members for blocking the discharge pipe and are in linkage cooperation with the guide rod, stirring and dispersing the toner during feeding and closing when not feeding, ensuring that the feeding will not be blocked to ensure normal printing of documents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure diagram of the present application;

[0020] Figure 2 is a three-dimensional structure sectional view of the present application;

[0021] Figure 3 is the present application Figure 2 an enlarged view of part A;

[0022] Figure 4 is the present application Figure 2 an enlarged view of part B;

[0023] Figure 5 This application Figure 2 Enlarged view of point C in the middle;

[0024] : 1. feed box; 2. feeding port; 3. discharge pipe; 4. stirring member; 5. valve member; 6. cavity; 7. rotating rod; 8. stirring plate; 9. casing; 10. conduit; 11. second bevel gear assembly; 101. box body; 102. box cover; 103. first clamping ring; 104. second clamping ring; 401. mounting plate; 402. guide rod; 403. spiral sheet; 404. motor; 405. first bevel gear assembly; 501. ring plate; 502. movable plate; 503. conical groove; 504. conical block; 505. spring; 506. linkage member; 5061. conical block; 5062. L-shaped rod; 5063. ball. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0026] like Figures 1-5 As shown, a feeding mechanism for a copier proposed in one embodiment of the present application includes:

[0027] A feed box 1, the top of which is connected to a feed port 2, and the bottom of which is connected to a discharge pipe 3, toner is added into the feed box 1 from the feed port 2, and the toner is discharged from the discharge pipe 3 for printing;

[0028] The stirring member 4 includes a mounting plate 401 fixedly mounted on the inner wall of the discharge pipe 3. Preferably, the mounting plate 401 does not completely cover the inner diameter of the discharge pipe 3, so as not to affect the normal falling and discharge of the toner. A guide rod 402 coaxial with the discharge pipe 3 is rotatably penetrated on the mounting plate 401, and the top of the guide rod 402 extends into the feed box 1. A spiral piece 403 is fixedly mounted on the guide rod 402, and the outer edge of the spiral piece 403 is in contact with and overlaps the inner wall of the discharge pipe 3. A motor 404 is arranged on the outer wall of the discharge pipe 3. The output shaft of the motor 404 is connected to the guide rod 402 through a first bevel gear assembly 405. The first bevel gear assembly 405 includes two gears, one of which is fixedly mounted on the motor. The output shaft end of the motor 404 is fixed on the guide rod 402, and the two gear teeth are meshed. The motor 404 does work, and it drives the guide rod 402 to rotate through the linkage of the first bevel gear assembly 405, thereby driving the spiral piece 403 to rotate. When the spiral piece 403 rotates, it is not only used to stir the toner located at the connecting port between the supply box 1 and the discharge pipe 3, but also to break up the toner to prevent the toner from clogging the connecting port, and to carry out spiral transmission of the toner, so as to transport the toner in the supply box 1 to the discharge pipe 3. The toner in the discharge pipe 3 is transported by the interlayer spiral of the spiral piece 403, which can reduce the extrusion of the toner (the bottom layer);

[0029] The valve member 5 includes an annular plate 501 provided at the bottom end of the discharge pipe 3. A movable plate 502 is slidably disposed in the discharge pipe 3 and above the annular plate 501. A tapered groove 503 is formed through the top of the movable plate 502. A conical block 504 is provided at the bottom end of the guide rod 402 and is inserted and matched with the tapered groove 503. A spring 505 is connected between the movable plate 502 and the annular plate 501. A linkage member 506 is provided between the guide rod 402 and the movable plate 502. When the guide rod 402 rotates, the linkage member 506 drives the movable plate 502 to reciprocate. When the guide rod 402 is stationary, under the elastic force of the spring 505, the movable plate 502 is driven to move upward, so that the conical block 504 is inserted into the tapered groove 503, and the conical block 504 cooperates with the movable plate 502 to block the discharge pipe 3. When toner needs to be supplied, the motor 404 drives the guide rod 402 to rotate, so as to convey the toner in the supply box 1 into the discharge pipe 3. When the guide rod 402 rotates, the linkage member 506 drives the movable plate 502 to reciprocate. When the movable plate 502 slides downward, a gap is formed between the conical block 504 and the tapered groove 503, and the toner in the discharge pipe 3 flows through the gap. At the same time, when the movable plate 502 reciprocates, the spring 505 will also be compressed. Under the elastic force of the spring 505, the movable plate 502 will vibrate, making it easier for the toner in the discharge pipe 3 to flow through the gap between the conical block 504 and the tapered groove 503. When the feeding stops, the motor 404 is turned off and the guide rod 402 stops rotating. Under the elastic force of the spring 505, the conical block 504 is again matched with the movable plate 502 to block the discharge pipe 3;

[0030] During feeding, the motor 404 operates. The guide rod 402 and the spiral blade 403 are not only used to stir and disperse the toner, but also used to convey the toner into the discharge pipe 3. The linkage member 506 drives the movable plate 502 to reciprocate, so as to discharge the toner in the discharge pipe 3 from the gap, so as to achieve feeding. After the motor 404 is turned off, the discharge pipe 3 is automatically blocked, combining the stirring and dispersing with the opening and closing of the valve. The stirring and dispersing are automatic during feeding, and it is closed when not feeding, ensuring that the feeding will not be blocked, so as to ensure normal printing of documents.

[0031] As Figure 3As shown, in some embodiments, the linkage member 506 includes a conical block 5061 arranged on the top of the movable plate 502, an L-shaped rod 5062 is arranged on the guide rod 402, and a ball 5063 is rolled and inserted at the free end of the L-shaped rod 5062, and the ball 5063 rolls and overlaps with the top of the movable plate 502. Preferably, the number of the conical block 5061 and the L-shaped rod 5062 are both two. When the guide rod 402 rotates, the L-shaped rod 5062 is driven to rotate synchronously, and the ball 5063 rotates along the movable plate. 502 rolls. When the L-shaped rod 5062 rotates and passes through the conical block 5061, the ball 5063 rolls and hits the conical inclined surface of the conical block 5061. Under the resistance of the inclined surface, the movable plate 502 is forced to move downward and squeeze the spring 505. When the ball 5063 rolls and leaves the conical block 5061, under the elastic resistance of the spring 505, the movable plate 502 slides upward and resets. As the guide rod 402 continues to rotate, the movable plate 502 is driven to slide back and forth.

[0032] like Figure 3 As shown, in some embodiments, a cavity 6 is opened in the inner wall of the mounting plate 401, and the first bevel gear assembly 405 is located in the cavity 6. By opening the cavity 6 in the mounting plate 401 and setting the first bevel gear assembly 405 in the cavity 6, the mounting plate 401 can also protect the first bevel gear assembly 405, thereby preventing toner from being stuck in the gear groove and ensuring the linkage stability of the first bevel gear assembly 405.

[0033] like Figure 2 and Figure 4 As shown, in some embodiments, a rotating rod 7 is rotatably provided on the inner wall of one side of the supply box 1, and a plurality of stirring blades 8 are arranged in an array on the rotating rod 7. The free end of the rotating rod 7 is connected to the guide rod 402 through a second bevel gear assembly 11. The second bevel gear assembly 11 includes two gears, one of which is fixed on the guide rod 402, and the other gear is fixed on the rotating rod 7. The teeth of the two gears are meshed. When the guide rod 402 rotates, the second bevel gear assembly 11 drives the rotating rod 7 to rotate synchronously, so that the stirring blades 8 stir the toner in the supply box 1, so that the toner is not easy to clump, thereby improving practicality.

[0034] like Figure 4 As shown, in some embodiments, a sleeve 9 is provided on the inner wall of the feed box 1, and the ends of the guide rod 402 and the rotating rod 7 rotate and penetrate the sleeve 9, and the second bevel gear assembly 11 is located in the sleeve 9. The sleeve 9 is provided, which not only plays a role in supporting the rotation of the guide rod 402 and the rotating rod 7, making the rotation of the two more stable, but also serves to protect the second bevel gear assembly 11, avoiding toner from being stuck in the gear groove, and ensuring the linkage stability of the second bevel gear assembly 11.

[0035] like Figure 3As shown, in some embodiments, a conduit 10 is provided at the bottom end of the movable plate 502 and is in communication with the conical groove 503. The bottom end of the conduit 10 slidably penetrates through the ring plate 501. By providing the conduit 10, it is used to guide the toner falling during unloading, preventing the toner from being stuck between the movable plate 502 and the ring plate 501 and avoiding affecting the spring 505.

[0036] As Figure 2 shown, in some embodiments, the bottom of the supply cartridge 1 has an inclined structure, and the discharge pipe 3 is connected to the end with a lower inclination. By making the bottom of the supply cartridge 1 have an inclined structure, the toner in the supply cartridge 1 can more easily slide and be conveyed into the discharge pipe 3 due to the inclination, making it not easy to remain, thereby improving the practicability.

[0037] As Figure 5 shown, in some embodiments, the supply cartridge 1 includes a cartridge body 101 and a cartridge cover 102. A first snap ring 103 is provided on the inner wall of the opening of the cartridge body 101, and a second snap ring 104 that is snap-fitted with the first snap ring 103 is provided at the bottom of the cartridge cover 102. Preferably, the first snap ring 103 is made of rubber, and a groove is provided in its inner ring. The second snap ring 104 is made of plastic, and a protrusion that is snap-fitted with the groove is provided on its outer ring. Utilizing the deformable characteristic of the rubber material, the cartridge cover 102 can be snapped and fixed on the cartridge body 101, and it is also convenient to remove and separate, so as to facilitate cleaning or maintenance of the inside of the supply cartridge 1.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A feeding mechanism for a copier, characterized in that: include: A feed box (1) having a top connected to a feed port (2) and a bottom connected to a discharge pipe (3); The stirring member (4) comprises a mounting plate (401) fixedly mounted on the inner wall of the discharge pipe (3), a guide rod (402) coaxial with the discharge pipe (3) rotatably penetrates the mounting plate (401), the top of the guide rod (402) extends into the feed box (1), a spiral sheet (403) is fixedly mounted on the guide rod (402), and the outer edge of the spiral sheet (403) is in contact with and overlaps the inner wall of the discharge pipe (3), a motor (404) is arranged on the outer wall of the discharge pipe (3), and the output shaft of the motor (404) is transmission-connected to the guide rod (402) via a first bevel gear assembly (405); The valve member (5) comprises a ring plate (501) arranged at the bottom end of the discharge pipe (3); a movable plate (502) is slidably arranged in the discharge pipe (3) and above the ring plate (501); a conical groove (503) is formed through the top of the movable plate (502); a conical block (504) is provided at the bottom end of the guide rod (402) and is plugged into the conical groove (503); a spring (505) is connected between the movable plate (502) and the ring plate (501); a linkage member (506) is provided between the guide rod (402) and the movable plate (502); when the guide rod (402) rotates, the linkage member (506) drives the movable plate (502) to slide back and forth.

2. The feeding mechanism of a copier according to claim 1, characterized in that: The linkage member (506) comprises a conical block (5061) arranged on the top of the movable plate (502); an L-shaped rod (5062) is arranged on the guide rod (402); a ball (5063) is rollingly inserted at the free end of the L-shaped rod (5062); and the ball (5063) is rollingly overlapped with the top of the movable plate (502).

3. The feeding mechanism of a copier according to claim 1, characterized in that: The inner wall of the mounting plate (401) is provided with a cavity (6), and the first bevel gear assembly (405) is located in the cavity (6).

4. The feeding mechanism of a copier according to claim 1, characterized in that: A rotating rod (7) is rotatably arranged on the inner wall of one side of the feed box (1), and a plurality of stirring blades (8) are arranged in an array on the rotating rod (7). The free end of the rotating rod (7) is transmission-connected to the guide rod (402) via a second bevel gear assembly (11).

5. The feeding mechanism of a copier according to claim 4, characterized in that: The inner wall of the feed box (1) is provided with a sleeve shell (9), the ends of the guide rod (402) and the rotating rod (7) are both rotated to penetrate the sleeve shell (9), and the second bevel gear assembly (11) is located in the sleeve shell (9).

6. The feeding mechanism of a copier according to claim 1, characterized in that: The bottom end of the movable plate (502) is provided with a conduit (10) communicating with the conical groove (503), and the bottom end of the conduit (10) slides through the ring plate (501).

7. The feeding mechanism of a copier according to claim 1, characterized in that: The bottom of the material supply box (1) is of an inclined structure, and the discharge pipe (3) is connected to the end with a lower inclination.

8. The feeding mechanism of a copier according to claim 1, characterized in that: The material supply box (1) comprises a box body (101) and a box cover (102); the inner wall of the opening of the box body (101) is provided with a first clamping ring (103); the bottom of the box cover (102) is provided with a second clamping ring (104) which is clamped and matched with the first clamping ring (103).

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