Toner cartridge box adaptive to specification of powder feeding roller

Abstract

The invention relates to the technical field of printers, in particular to a toner cartridge box adapting to the specification of a toner feeding roller, which comprises a toner bin, a magnetic roller, a scraper and the toner feeding roller, and further comprises a clamping assembly, a circle center frame, a displacement assembly, a mounting assembly, an extension spring and a fitting block. The displacement assembly is driven to move by extruding the clamping assembly, so that the circle center frame is tightly attached to the powder feeding roller to move to a proper position, and the position can ensure that the distance between the powder feeding roller and the magnetic roller is kept unchanged and the contact point of the powder feeding roller and the fixed column is kept unchanged; therefore, the situation that the printing effect is poor due to the fact that the powder feeding rollers of different sizes are too close to or too far away from the magnetic roller is avoided, and meanwhile the situation that the working effect of the magnetic roller is reduced due to the fact that the powder conveying position of the powder feeding rollers to the magnetic roller is changed due to the size problem of the powder feeding rollers is avoided. And then the mounting component can be used for mounting the movable powder feeding roller on the toner cartridge shell.

Description

Technical Field

[0001] The invention relates to the technical field of laser printing, in particular to a toner cartridge adapted to the specifications of a powder feeding roller. Background Art

[0002] Toner cartridges are also known as photosensitive drums. Their main function is to transfer the image formed by the laser beam in a laser printer to the printing paper. The basic structure of a toner cartridge is generally composed of a basic substrate made of aluminum and a photosensitive material coated on the substrate. Since more than 70% of the imaging components in a printer are concentrated in the toner cartridge, the quality of printing is largely determined by the toner cartridge. Therefore, toner cartridges are crucial to the entire laser printer. In the powder bin of the toner cartridge, the toner powder is transported to the surface of the drum core in a process in which the powder feeding roller transfers the toner powder to the magnetic roller, and the magnetic roller adsorbs the magnetic toner powder. At the same time, the toner powder is electrostatically charged through the friction of the scraper, and then the conductive wire in the magnetic roller conducts electricity to generate a magnetic field, so that the toner powder is transported to the drum core, and the surface of the drum core adsorbs the negatively charged toner powder, thereby generating an image through the toner powder.

[0003] The distance between the powder feeding roller and the magnetic roller determines whether the magnetic roller can contact an appropriate amount of toner. When the distance from the magnetic roller is large, less toner is delivered, which may cause light printing. When the distance from the magnetic roller is small, more toner is delivered, which may cause darker printing. Therefore, the distance between the powder feeding roller and the magnetic roller should be kept as constant as possible. At the same time, in order to ensure that the entire magnetic roller can receive toner evenly, the two ends of the powder feeding roller need to be kept concentric. After a toner cartridge is designed, the distance between the powder feeding roller and the magnetic roller is determined. However, due to the poor manufacturing process of the powder feeding roller, the powder feeding roller may be larger or smaller, which will not only make the distance between the powder feeding roller and the magnetic roller closer or farther, but also cause the position of the powder feeding roller itself and the magnetic roller to transfer toner to change. Although the specification difference of the powder feeding roller is within a reasonable range of the factory, it will still affect the printing quality of the printer. In addition, when a larger or smaller powder feeding roller is placed in the toner cartridge, the position of the powder feeding roller to transfer powder to the magnetic roller will be changed, which affects the working efficiency of the magnetic roller.

[0004] For this reason, a toner cartridge adapted to the specifications of a powder feeding stick is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a toner cartridge that adapts to the specifications of a powder feeding roller, thereby solving the problem that the color of the printed product is darker or lighter due to a smaller or larger distance between the powder feeding roller and the magnetic roller, and solving the problem that the two ends of the powder feeding roller cannot be concentric, resulting in the magnetic roller being unable to uniformly receive carbon powder.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a toner cartridge adapted to the specifications of a powder feeding roller, comprising a powder bin, a magnetic roller, a scraper and a powder feeding roller, and also comprising a clamping assembly, a center frame, a displacement assembly, an installation assembly, a tension spring and a fitting block, wherein the center frame is fitted on the outside of the powder feeding roller, the inside of the center frame is an empty groove, and tension springs are fixedly installed on both sides of the empty groove of the center frame, the fitting block is fixedly arranged at the other end of the tension spring, and the center frame is arranged on the outside of the powder bin, the clamping assembly is arranged on the outside of the center frame, the installation assembly is arranged on the top of the powder feeding roller, the clamping assembly clamps the powder feeding roller on the outside of the powder bin so as to fit the powder feeding roller on the inside of the center frame and make the powder feeding roller cocentric with the center frame, the center of the center frame is located at the center of the clamping assembly, and the installation assembly connects the powder feeding roller to the inner wall of the toner cartridge.

[0007] In the above scheme, due to the difference in manufacturing process, the size of the powder feeding roller in the toner cartridge is larger or smaller than the predetermined value when designing the toner cartridge. After the powder feeding roller is installed on the toner cartridge, it will be skewed and shifted, resulting in it not being able to evenly transport the toner to the magnetic roller or even being unable to be installed. At the same time, when its size is large, the powder feeding roller is too close to the magnetic roller, which will cause too much toner to be adsorbed on the magnetic roller, and then cause the magnetic roller to transport too much toner to the drum core, resulting in a darker color of the printed product. On the contrary, when its size is small, it is too far away from the magnetic roller, which will cause too little toner to be adsorbed on the magnetic roller, resulting in a lighter printed product. The clamping component is used to obtain an circumscribed circle by forming a circle with three points. As the size of the powder stick changes, the clamping assembly will also change accordingly, close to the powder stick, and drive the displacement assembly to move. The displacement assembly can drive the center frame to move, so that no matter how the size of the powder stick changes, the distance from the magnetic roller remains unchanged, and the magnetic roller will not absorb too much or too little carbon powder. At the same time, after the position of the powder stick is determined, the mounting assemblies at both ends of the powder stick are adjusted to keep the two ends of the powder stick concentric, so that the magnetic roller can absorb uniform carbon powder. At the same time, the tension springs symmetrically arranged on the inner side of the center frame push the fitting block to fit the powder stick, which can adapt to powder sticks of different sizes and ensure that the center of the center frame coincides with the center of the powder stick.

[0008] Furthermore, the opening part of the powder bin outside the center frame can be filled with an open sponge to prevent leakage of toner (without affecting the movement of the powder feeding roller in the center frame). Since the powder bin is installed on the inner side of the toner cartridge shell, even if an open sponge is not provided, toner will not leak out of the toner cartridge.

[0009] Preferably, the clamping assembly includes an annular tight fitting member, a columnar tight fitting member and a fixed column, the fixed column is arranged on the outside of the powder bin, the distance between the powder feeding roller and the magnetic roller remains unchanged, the fixed column is arranged on the center line of the powder feeding roller and the magnetic roller, and the fixed column is in contact with the powder feeding roller, the annular tight fitting member is arranged on the outside of the powder feeding roller, and the columnar tight fitting member is arranged on the other outside of the powder feeding roller, the annular tight fitting member and the columnar tight fitting member are adjusted according to the size of the powder feeding roller, and combined with the fixed column to maintain the distance between the powder feeding roller and the magnetic roller unchanged.

[0010] In the above scheme, the fixed column is fixed on the wall of the powder bin, and the distance from the point where it fits with the powder feeding stick to the center of the magnetic roller is the distance that the surface of the powder feeding stick should maintain from the center of the magnetic roller after the size of the powder feeding stick changes. The annular tight fitting part and the column tight fitting part change with the size of the powder feeding stick, thereby driving the change of the position of the center frame through the displacement component to adapt to powder feeding sticks of different sizes.

[0011] Preferably, the annular close-fitting member includes a sliding groove, a sliding block, a first spring, an annular clamping block, a rebound module and a first empty groove, the sliding groove is opened on the inner wall of the powder bin, the sliding block is slidably arranged on the inner side of the sliding groove, the first spring is fixedly arranged on the inner side of the sliding block, the annular clamping block is fixedly arranged on the other end of the first spring, the first spring is respectively arranged in the middle and left and right ends of the annular clamping block, one end of the annular clamping block in the powder bin is arc-shaped, the diameter of the annular clamping block is larger than the diameter of the powder feeding roller, the first empty groove is opened on the side of the powder bin, the annular clamping block is slidably arranged on the inner side of the first empty groove, the width of the first empty groove is twice the thickness of the annular clamping block, the rebound module is arranged at the top of the annular clamping block, and the rebound module is close to the annular clamping block to fix the annular clamping block.

[0012] In the above scheme, the width of the first slot is twice the thickness of the annular clamp block, and the annular clamp block can slide in the first slot to adapt to different powder feeding sticks. One end of the annular clamp block in the powder bin is set to be arc-shaped, thereby ensuring that the powder feeding stick will not get stuck when it is attached to the inner wall of the powder bin. The diameter of the annular clamp block is larger than the diameter of the powder feeding stick, thereby ensuring that the top end of the annular clamp block can be attached to the surface of the powder feeding stick to obtain the contact point between the annular clamp block and the powder feeding stick.

[0013] Furthermore, the first empty slot can be filled with an open sponge to prevent carbon powder from leaking out, because the powder bin is installed on the inner side of the toner cartridge shell, so even if an open sponge is not provided, carbon powder will not leak out of the toner cartridge.

[0014] Preferably, the rebound module includes a fixed block and a second spring, the fixed block is fixedly arranged on the side of the powder bin, the second spring is fixedly arranged at the bottom end of the fixed block, the other end of the second spring is fixedly connected to the upper end of the annular clamp block, and the elastic coefficient of the second spring is equal to the elastic coefficient of the first spring.

[0015] In the above solution, the elastic coefficient of the second spring is the same as that of the first spring, and three first springs are provided, thereby ensuring that the annular clamping block can be pushed outward by the powder feeding roller and can be pushed upward more easily.

[0016] Preferably, the column-fitting part includes a second empty slot, a third spring, a clamping column and a sliding block. The second empty slot is opened on the side of the powder bin. The width of the second empty slot is equal to the diameter of the clamping column. The clamping column is slidably arranged on the inner side of the second empty slot. The clamping column is provided with a sliding block sliding in the powder bin. The diameter of the clamping column is equal to the diameter of the fixed column. The third spring is fixedly arranged on the wall of the powder bin. The other end of the third spring is fixedly arranged on the clamping column. The elastic coefficient of the third spring is equal to the elastic coefficient of the second spring.

[0017] In the above scheme, the second slot is equal to the diameter of the clamping column to prevent carbon powder from overflowing from both sides of the clamping column. The third spring elastic coefficient is the same as the second spring elastic coefficient to ensure that the annular block and the clamping column move in consistent steps when they are squeezed. For example, when the third spring elastic coefficient is greater than the second spring elastic coefficient, the squeezing column will not push the powder feeding rod to one side of the annular block. The diameter of the clamping column is equal to the thickness of the annular block to ensure that the intermediate support member is respectively in the middle position of the fixed column and the clamping column and in the middle position of the clamping column and the annular block, thereby ensuring that the powder feeding rod clamped on the inner side of the center frame always maintains a fixed distance from the magnetic roller.

[0018] Furthermore, the second empty slot can be filled with an open sponge to prevent leakage of toner, because the powder bin is installed on the inner side of the toner cartridge shell, and thus even if no open sponge is provided, toner will not leak out of the toner cartridge.

[0019] Preferably, the displacement assembly includes a first rotating block, a first knob column, a second movable member and an intermediate support member, one of the first rotating blocks is rotatably arranged on the outside of the fixed column, and the other end of the first rotating block is rotatably arranged on the outside of the first knob column, the other first rotating block is rotatably arranged on the outside of the clamping column, and the other end of the first rotating block is rotatably arranged on the outside of the first knob column, the distance between one of the first rotating blocks and the first knob column is equal to the distance between the other first rotating block and the first knob column, the second movable member is arranged between the annular clamping block and the clamping column, the intermediate support member is arranged on the outside of the first knob column, and the second movable member is bent and rotated according to the size of the powder feeding rod to change the position of the intermediate support member, so that the position of the center frame connected to the intermediate support member changes.

[0020] In the above scheme, the circle formed by the three points where the fixed column, the annular clamping block and the clamping column contact the powder feeding rod respectively is used to obtain the end face position of the powder feeding rod in the powder bin, thereby determining the center point of the powder feeding rod. At the same time, the circle formed is an circumscribed circle, and the diameter of the fixed column is equal to the diameter of the clamping column. Therefore, the vertical center line of the distance from the center point of the fixed column to the center point of the clamping column points to the center of the circumscribed circle, and the center line of the intermediate support member coincides with the vertical center line. At the same time, because the first knob column is located between the two first rotating blocks, when the first knob block bends and changes with the change of the size of the powder feeding rod, the first knob column is always in the middle, and its corresponding intermediate support member is also always in the middle position of the first knob column.

[0021] Preferably, the second movable part includes a rotating chamber, a rotating column, a second rotating block and a second knob column, the rotating chamber is opened on the side of the annular clamping block, the rotating column is fixedly arranged inside the rotating chamber, the rotating column is flush with the wall surface of the annular clamping block, and one of the second rotating blocks is rotatably arranged on the outside of the rotating column, and the other end is rotatably arranged on the outside of the second knob column, the other second rotating block is rotatably arranged on the outside of the clamping column, and the other end is rotatably arranged on the outside of the second knob column, the diameter of the rotating column is equal to the diameter of the clamping column, the second rotating block is consistent with the first rotating block, and the distance between one of the second rotating blocks and the second knob column is equal to the distance between the other second rotating block and the second knob column.

[0022] In the above scheme, since the second rotating block is consistent with the first rotating block, and the diameter of the rotating column is consistent with the diameter of the clamping column, the vertical center line between the rotating column and the clamping column points to the center of the circle center frame. At the same time, because the second knob column is located between the two second rotating blocks, the second knob block changes with the change of the size of the powder feeding rod. The second knob column is always in the middle position of the two second rotating blocks. At the same time, its corresponding intermediate support member is symmetrically arranged at the upper end of the second knob column to ensure that the center line of the intermediate support member points to the center of the circumscribed circle. The rotating column is flush with the wall of the annular clamping block (that is, the rotating column does not protrude from the clamping block wall, and there is only a line between the upper and lower ends of the rotating column surface that contacts the clamping block wall). The center of the circle center frame is in the center position of the clamping column, the fixed column and the rotating column in the initial state without the powder feeding rod (that is, the circumscribed circle formed by the clamping column, the fixed column and the rotating column is concentric with the center center frame).

[0023] Preferably, the intermediate support member includes a straightening block, a first circular groove, a second circular groove and a support column, one of the support columns is fixedly arranged on the outer side of a first rotating block, and the other support column is fixedly arranged on the outer side of a second rotating block, the first circular groove is penetrated through and opened on the straightening block, the second circular groove is penetrated through and opened on the straightening block, the support column is rotatably arranged on the inner side of the second circular groove, the first knob column and the second knob column are respectively rotatably arranged on the inner sides of different first circular grooves, the straightening block is fixedly connected to the center frame, and the straightening block is respectively fixedly arranged at the center position of the first knob column or the second knob column.

[0024] In the above scheme, after the powder feeding roller is clamped, the straightening block is located in the middle of the first knob column and the second knob column, and the point where they converge is the center point of the powder feeding roller, and the straightening block is fixedly connected to the circle center frame, and the connecting line of the straightening block and the circle center frame coincides, so that the circle center frame can adjust the position of powder feeding rollers of different sizes under the premise of ensuring that the distance between the powder feeding roller and the magnetic roller is consistent and the powder feeding roller and the fixed contact point remain unchanged, so that the powder feeding roller will not affect its own work due to its large or small size, because the second circular groove is fixedly set on the first rotating block or the second rotating block, so that the straightening block will not affect the rotation between the first rotating block or the second rotating block, and can be fixed to point to the center of the circle center frame.

[0025] Preferably, the installation component includes an assembly frame and a universal disk, the assembly frame is respectively fitted on the outer sides of both ends of the powder feeding roller, the universal disk is arranged on the side of the assembly frame, and the other end of the universal disk is connected to the inner side of the toner cartridge shell to adjust the position of the powder feeding roller connected to the toner cartridge shell.

[0026] Preferably, the universal disk includes a base disk, a slide rail and a slide frame, the base disk is fixedly arranged on the side of the assembly frame, the base disk and the assembly frame have the same center, the slide rail is fixedly arranged on the other end surface of the base disk, and the slide frame is slidably arranged on the inner side of the slide rail.

[0027] In the above scheme, the sliding frame can slide on the inside of the slide rail and the base plate can rotate. Since the assembly frame is set at the center of the base plate, the rotation of the base plate will not affect the position of the assembly frame, so the sliding frame can rotate 360° to ensure that it is installed on the inside of the toner cartridge shell.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. When a powder feeding stick different from the originally designed size is placed in the powder bin, one end of the stick is placed in the center frame, and the displacement assembly is driven to shift by squeezing the clamping assembly, so that the center frame is moved to a suitable position close to the powder feeding stick. This position can ensure that the distance between the powder feeding stick and the magnetic roller remains unchanged, and the contact point between the powder feeding stick and the fixed column remains unchanged, so that powder feeding sticks of different sizes will not cause poor printing effects due to being too close or too far from the magnetic roller, and the position of powder feeding to the magnetic roller will not change due to the size of the powder feeding stick, thereby reducing the working effect of the magnetic roller. The assembly can then be installed to install the movable powder feeding stick on the toner cartridge housing.

[0030] 2. Tension springs and supporting sponges are arranged inside the circular frame to adapt to powder feeding sticks of different specifications, thus increasing practicality.

[0031] 3. By placing both ends of the powder feeding stick into the assembly frame in the center of the base plate, and then rotating the base plate and sliding the sliding frame on the slide rail, the sliding frame can be accurately installed on the toner cartridge housing, so that the displaced powder feeding stick can be installed on the toner cartridge housing without the problem of being unable to install or the powder feeding stick being offset after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of a toner cartridge adapted to the specifications of a powder feeding roller of the present invention;

[0033] Figure 2 Another overall structural schematic diagram of a toner cartridge adapted to the specifications of a powder feeding roller according to the present invention;

[0034] Figure 3 It is a left sectional view of a toner cartridge adapted to the specifications of a powder feeding roller of the present invention;

[0035] Figure 4 It is a top cross-sectional view of a center frame of a toner cartridge adapted to the specifications of a powder feeding roller of the present invention;

[0036] Figure 5 It is a left side cross-sectional view of a center frame of a toner cartridge adapted to the specifications of a powder feeding roller according to the present invention;

[0037] Figure 6 Another overall structural schematic diagram of a toner cartridge adapted to the specifications of a powder feeding roller according to the present invention

[0038] Figure 7 Another left side cross-sectional view of a toner cartridge adapted to the specifications of a powder feeding roller of the present invention;

[0039] Figure 8 Another overall structural schematic diagram of a toner cartridge adapted to the specifications of a powder feeding roller according to the present invention;

[0040] Fig. 9Another overall structural schematic diagram of a toner cartridge adapted to the specifications of a powder feeding roller according to the present invention;

[0041] Fig.10 The present invention is a schematic diagram of the structure of an installation component of a toner cartridge adapted to the specifications of a powder feeding roller.

[0042] In the figure: 1, powder bin; 2, magnetic roller; 3, scraper; 4, powder feeding stick; 5, clamping assembly; 51, annular close fitting member; 51a, sliding groove; 51b, sliding block; 51c, first spring; 51d, annular clamping block; 51e, rebound module; 51e1, fixed block; 51e2, second spring; 51f, first empty slot; 52, column close fitting member; 52a, second empty slot; 52b, third spring; 52c, clamping column; 52d, sliding block; 53, fixed column; 6, center frame; 7 , displacement assembly; 71, first rotating block; 72, first knob column; 73, second movable part; 73a, rotating chamber; 73b, rotating column; 73c, second rotating block; 73d, second knob column; 74, intermediate support member; 74a, straightening block; 74b, first circular groove; 74c, second circular groove; 74d, support column; 8, installation assembly; 81, assembly frame; 82, universal plate; 82a, base plate; 82b, slide rail; 82c, sliding frame; 9, tension spring; 10, fitting block. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 10The present invention provides a toner cartridge adapted to the specifications of a powder feeding roller, and the technical scheme is as follows: A toner cartridge adapted to the specifications of a powder feeding roller comprises a powder bin 1, a magnetic roller 2, a scraper 3 and a powder feeding roller 4, characterized in that it also comprises a clamping assembly 5, a center frame 6, a displacement assembly 7, an installation assembly 8, a tension spring 9 and a fitting block 10, the center frame 6 is fitted on the outside of the powder feeding roller 4, the inside of the center frame 6 is an empty groove, and tension springs 9 are fixedly installed on both sides of the empty groove of the center frame 6, and the fitting block 10 is provided. The closing block 10 is fixedly arranged at the other end of the tension spring 9, and the center frame 6 is arranged outside the powder bin 1, the clamping assembly 5 is arranged outside the center frame 6, and the mounting assembly 8 is arranged at the top of the powder feeding rod 4. The clamping assembly 5 clamps the powder feeding rod 4 outside the powder bin 1 to fit the powder feeding rod 4 to the inside of the center frame 6, and make the powder feeding rod 4 and the center frame 6 coaxial. The center of the center frame 6 is located at the center of the clamping assembly 5, and the mounting assembly 8 connects the powder feeding rod 4 to the inner wall of the toner cartridge. , one end of the powder feeding roller 4 is placed inside the center frame 6, and the symmetrically arranged fitting blocks 10 inside the center frame 6 are tightly attached to the powder feeding roller 4 under the action of the stored force of the tension spring 9, thereby ensuring that the center frame 6 is concentric with one end of the powder feeding roller 4, and at the same time, the clamping assembly 5 is clamped on the outer side of the end face of the powder feeding roller 4 in the powder bin 1, so that the clamping assembly 5 changes according to the size of the powder feeding roller 4 to ensure that the clamping assembly 5 can always fit on the outer side of the powder feeding roller 4, and at the same time, the displacement assembly 7 drives the center frame 6 to move with the movement of the clamping assembly 5 so that the distance between the powder feeding roller 4 and the magnetic roller 2 remains unchanged, and the distance between the powder feeding roller 4 and the magnetic roller 2 remains unchanged and the contact point between the powder feeding roller 4 and the fixed column 53 ensures that the magnetic roller 2 can continue to receive toner in the same area. After that, by adjusting the mounting assemblies 8 at both ends of the powder feeding roller 4, the powder feeding roller 4 can be installed on the toner cartridge to keep the two ends concentric, thereby ensuring that the powder feeding roller 4 will not deliver too much or too little toner to the magnetic roller 2.

[0045] As an embodiment of the present invention, refer to Figure 1-8 The clamping assembly 5 includes an annular close fitting member 51, a column close fitting member 52 and a fixed column 53, which are fixedly arranged outside the powder bin 1. The distance between the powder feeding roller 4 and the magnetic roller 2 remains unchanged. The fixed column 53 is arranged on the center line of the powder feeding roller 4 and the magnetic roller 2, and the fixed column 53 contacts the powder feeding roller 4. The annular close fitting member 51 is arranged outside the powder feeding roller 4, and the column close fitting member 52 is arranged at the other outer side of the powder feeding roller 4. The annular close fitting member 51 and the column close fitting member 52 are adjusted according to the size of the powder feeding roller 4. The powder feeding rod 4 is arranged in a circle and combined with the fixed column 53 to maintain the distance between the powder feeding rod 4 and the magnetic roller 2 unchanged. When the powder feeding rod 4 is placed in the center frame 6, not only the center frame 6 will be tightly attached to the outer side of the powder feeding rod 4, but also the parts of the powder feeding rod 4 in the powder bin 1 will be tightly attached to the annular tight fitting part 51, the columnar tight fitting part 52 and the fixed column 53. The contact points of the annular tight fitting part 51, the columnar tight fitting part 52 and the fixed column 53 close to the powder feeding rod 4 form an circumscribed circle, which coincides with the end face of the powder feeding rod 4.

[0046] As an embodiment of the present invention, refer to Figure 1-8 The annular close-fitting member 51 includes a sliding groove 51a, a sliding block 51b, a first spring 51c, an annular clamping block 51d, a rebound module 51e and a first empty groove 51f. The sliding groove 51a is opened on the inner wall of the powder bin 1, the sliding block 51b is slidably arranged inside the sliding groove 51a, the first spring 51c is fixedly arranged inside the sliding block 51b, the annular clamping block 51d is fixedly arranged at the other end of the first spring 51c, and the first spring 51c is respectively arranged in the middle and left and right ends of the annular clamping block 51d. One end of the annular clamping block 51d in the powder bin 1 is arc-shaped, and the diameter of the annular clamping block 51d is larger than the diameter of the powder feeding roller 4. The first empty groove 51f is opened on the side of the powder bin 1, the annular clamping block 51d is slidably arranged inside the first empty groove 51f, and the width of the first empty groove 51f is twice the thickness of the annular clamping block 51d. The rebound module 51e is arranged at the top of the annular clamp 51d, and is close to the annular clamp 51d to fix the annular clamp 51d. When the powder feeding roller 4 is placed in the center circle frame 6, the powder feeding roller 4 is close to the inner wall of the powder bin 1. The powder feeding roller 4 squeezes the annular clamp 51d outward to slide in the first empty groove 51f. The first spring 51c accumulates force to stabilize the annular clamp 51d. At the same time, the rebound module 51e accumulates force to stabilize the annular clamp 51d. When the annular clamp 51d moves on the outside, it will also move to the top. In order to ensure that the movement of the annular clamp 51d is unobstructed, a sliding groove 51a is arranged on the outer wall of the powder bin 1, and a sliding block 51b slides in the sliding groove 51a. The sliding block 51b is connected to the annular clamp 51d by the first spring 51c, so that the first spring 51c and the annular clamp 51d rise and fall together.

[0047] As an embodiment of the present invention, refer to Figure 1-8 The rebound module 51e includes a fixed block 51e1 and a second spring 51e2. The fixed block is fixedly arranged on the side of the powder bin 1. The second spring 51e2 is fixedly arranged at the bottom of the fixed block 51e1. The other end of the second spring 51e2 is fixedly connected to the upper end of the annular clamp block 51d. The elastic coefficient of the second spring 51e2 is equal to the elastic coefficient of the first spring 51c. The second spring 51e2 at the bottom of the fixed block 51e1 stores force to stabilize the annular clamp block 51d to prevent the annular clamp block 51d from shifting arbitrarily when the annular clamp block 51d clamps the powder feeding roller 4.

[0048] As an embodiment of the present invention, refer to Figure 1-8The column close fitting member 52 includes a second slot 52a, a third spring 52b, a clamping column 52c and a sliding block 52d. The second slot 52a is opened on the side of the powder bin 1. The width of the second slot 52a is equal to the diameter of the clamping column 52c. The clamping column 52c is slidably arranged inside the second slot 52a. The clamping column 52c is provided with a sliding block 52d sliding in the powder bin 1. The diameter of the clamping column 52c is equal to the diameter of the fixed column 53. The third spring 52b is fixedly arranged on the wall of the powder bin 1. The other end of the third spring 52b is fixedly arranged on the clamping column 52c, and the elastic coefficient of the third spring 52b is equal to the elastic coefficient of the second spring 51e2. The clamping column 52c slides in the second slot 52a, so that the clamping column 52c can fit the surface of the powder feeding rod 4 of different sizes. At the same time, the sliding block 52d can slide on the inner wall of the powder bin 1 to prevent the clamping column 52c from tilting when sliding in the second slot 52a. The third spring 52b pushes the clamping column 52c to fit tightly against the powder feeding rod 4.

[0049] As an embodiment of the present invention, refer to Figure 1-9 The displacement assembly 7 includes a first rotating block 71, a first knob column 72, a second movable member 73 and an intermediate support member 74. One of the first rotating blocks 71 is rotatably arranged outside the fixed column 53, and the other end thereof is rotatably arranged outside the first knob column 72. Another first rotating block 71 is rotatably arranged outside the clamping column 52c, and the other end thereof is rotatably arranged outside the first knob column 72. The distance between one of the first rotating blocks 71 and the first knob column 72 is equal to the distance between the other first rotating block 71 and the first knob column 72. The second movable member 73 is arranged between the annular clamping block 51d and the clamping column 52c. The intermediate support member 74 is arranged outside the first knob column 72. The second movable member 73 is bent and rotated according to the size of the powder feeding roller 4 to The position of the intermediate support 74 is changed, so that the position of the center frame 6 connected to the intermediate support 74 is changed. The powder feeding rollers 4 of different sizes will directly drive the two first rotating blocks 71 to rotate around the first knob column 72, and the second movable member 73 will also rotate accordingly. The position of the center frame 6 is then changed through the intermediate support 74 to adjust the position of the powder feeding roller 4 to ensure that the distance between the powder feeding roller 4 and the magnetic roller 2 remains unchanged during the adjustment process, and the contact point between the powder feeding roller 4 and the fixed column 53 also remains unchanged. The contact point between the powder feeding roller 4 and the originally set fixed column 53 remains unchanged to ensure that no matter how the size of the powder feeding roller 4 changes, the carbon powder can be transported to the designated part of the magnetic roller 2, and then the magnetic roller 2 rotates to deliver the carbon powder to the drum core.

[0050] As an embodiment of the present invention, refer to Figure 1-9The second movable member 73 includes a rotating chamber 73a, a rotating column 73b, a second rotating block 73c and a second knob column 73d. The rotating chamber 73a is opened on the side of the annular clamping block 51d. The rotating column 73b is fixedly arranged inside the rotating chamber 73a. The rotating column 73b is flush with the wall surface of the annular clamping block 51d, and one of the second rotating blocks 73c is rotatably arranged on the outside of the rotating column 73b, and the other end is rotatably arranged on the outside of the second knob column 73d. The other second rotating block 73c is rotatably arranged on the outside of the clamping column 52c, and the other end is rotatably arranged on the outside of the second knob column 73d. The rotating column 73a is opened on the side of the annular clamping block 51d. The rotating column 73b is fixedly arranged inside the rotating chamber 73a. The rotating column 73b is flush with the wall surface of the annular clamping block 51d. The diameter of 3b is equal to the diameter of the clamping column 52c, the second rotating block 73c is consistent with the first rotating block 71, and the distance between one second rotating block 73c and the second knob column 73d is equal to the distance between the other second rotating block 73c and the second knob column 73d. When the powder feeding rod 4 is placed in the center frame 6, the second rotating block 73c outside the rotating column 73b and the second rotating block 73c outside the clamping column 52c rotate around the second knob column 73d, thereby driving the intermediate support member 74 at the upper end of the second knob column 73d to move the center frame 6, so that the second movable member 73 is consistent with the first rotating block 71.

[0051] As an embodiment of the present invention, refer to Figure 1-9 The intermediate support member 74 includes a straightening block 74a, a first circular groove 74b, a second circular groove 74c and a support column 74d, one support column 74d is fixedly arranged on the outer side of one of the first rotating blocks 71, and the other support column 74d is fixedly arranged on the outer side of one of the second rotating blocks 73c. ​​The first circular groove 74b is penetrated and opened on the straightening block 74a, and the second circular groove 74c is penetrated and opened on the straightening block 74a. The support column 74d is rotatably arranged on the inner side of the second circular groove 74c. The first knob column 72 and the second knob The columns 73d are rotatably set on the inner sides of different first circular grooves 74b, and the straightening blocks 74a are fixedly connected to the center frame 6. The straightening blocks 74a are fixedly set at the center positions of the first knob column 72 or the second knob column 73d. When the powder feeding rod 4 is placed in the center frame 6, the straightening block 74a drives the center frame 6 to move according to the size of the powder feeding rod 4, and moves the powder feeding rod 4 to a suitable position through the center frame 6 to ensure that it can work normally and will not cause poor printing effect due to a large or small distance from the magnetic roller 2.

[0052] As an embodiment of the present invention, refer to Figure 1-10 The mounting assembly 8 includes an assembly frame 81 and a universal disk 82. The assembly frame 81 is respectively fitted on the outer sides of the two ends of the powder feeding rod 4, and the universal disk 82 is arranged on the side of the assembly frame 81. The other end of the universal disk 82 is connected to the inner side of the toner cartridge shell to adjust the position of the powder feeding rod 4 connected to the toner cartridge shell. When the user moves the powder feeding rod 4 to the appropriate position, the user places the two ends of the powder feeding rod 4 into the assembly frame 81 and installs the universal disk 82 on the toner cartridge shell to adapt to the installation position of a larger or smaller powder feeding rod 4.

[0053] As an embodiment of the present invention, refer to Figure 1-10 The universal disk 82 includes a base disk 82a, a slide rail 82b and a slide frame 82c. The base disk 82a is fixedly arranged on the side of the assembly frame 81. The base disk 82a and the assembly frame 81 have the same center. The slide rail 82b is fixedly arranged on the other end surface of the base disk 82a. The slide frame 82c is slidably arranged on the inner side of the slide rail 82b. The user fits the two ends of the powder feeding roller 4 in the assembly frame 81 (the degree of fit is not tight, so as to facilitate the rotation of the powder feeding roller 4), and then adjusts the position of the slide frame 82c on the inner side of the slide rail 82b. The base disk 82a can also be rotated to realize the sliding of the slide frame 82c, so that the slide frame 82c can be fitted on the inner wall of the toner cartridge, and there is no need to worry about the problem that the powder feeding roller 4 cannot be installed on the toner cartridge shell due to the change in position.

[0054] Working principle: put the powder feeding stick 4 into the circle center frame 6, and the fitting block 10 symmetrically arranged on the inner side of the circle center frame 6 is tightly attached to the powder feeding stick 4 under the action of the tension spring 9, so that the center of the powder feeding stick 4 is consistent with the center of the circle center frame 6. However, when the size of the powder feeding stick 4 does not meet the design requirements and is larger or smaller, the powder feeding stick 4 placed inside the circle center frame 6 will squeeze the annular clamp block 51d and the clamping column 52c at the same time, causing them to shift. At the same time, the first spring 51c and the second spring 51e2 at one end of the annular clamp block 51d will stabilize the annular clamp block 51d, and the third spring 52b will stabilize the clamping column 52c, thereby The entire clamping assembly 5 can be operated stably, and the position of the fixed column 53 at the other end is fixed to the position in contact with the powder feeding roller 4, so that the powder feeding roller 4 can feed powder to the designated position of the magnetic roller 2 through the contact point of the fixed column 53. The contact points of the annular clamp block 51d, the clamping column 52c and the fixed column 53 with the powder feeding roller 4 can form an circumscribed circle, so that the point where the rotating column 73b of the annular clamp block 51d and the center vertical line of the clamping column 52c and the center vertical line of the clamping column 52c and the fixed column 53 intersect is the center of the powder feeding roller 4. (Because the clamping column 52c The diameters of the three columns are consistent, and the circle formed by the center points of the three columns is concentric with the circumscribed circle). With the movement of the rotating column 73b on the clamping column 52c and the annular clamping block 51d, the straightening block 74a on the second knob column 73d located at the middle position of the two second rotating blocks 73c (the straightening block 74a is located at the center position of the second knob column 73d and the first knob column 72, respectively) will drive the center frame 6 to move, because the straightening block 74a is located at the center vertical line between the rotating column 73b and the clamping column 52c and the clamping column 52c and the fixed column 52c, respectively. At the center vertical line of the column 53, it is proved that the position of the moving center frame 6 of the straightening block 74a can meet the conditions that the distance between the powder feeding rod 4 and the magnetic roller 2 is the same, and the contact point of the powder feeding rod 4 and the fixed column 53 remains unchanged (that is, only the powder feeding rod 4 needs to be placed in the center frame 6, and then the straightening block 74a automatically adjusts the position of the center frame 6 and the powder feeding rod 4). Then, by fitting the two ends of the powder feeding rod 4 to the inner side of the assembly frame 81, rotating the base plate 82a and sliding the sliding frame 82c on the slide rail 82b, the sliding frame 82c is installed on the toner cartridge housing, and the powder feeding rod 4 can be used normally.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A toner cartridge adapted to the specifications of a powder feeding roller, comprising a powder bin (1), a magnetic roller (2), a scraper (3) and a powder feeding roller (4), characterized in that: The invention also comprises a clamping assembly (5), a center frame (6), a displacement assembly (7), a mounting assembly (8), a tension spring (9) and a fitting block (10); the center frame (6) is fitted on the outside of the powder feeding roller (4); the inside of the center frame (6) is a hollow groove; and tension springs (9) are fixedly mounted on both sides of the hollow groove of the center frame (6); the fitting block (10) is fixedly mounted on the other end of the tension spring (9); and the center frame (6) is arranged on the outside of the powder bin (1). The clamping assembly (5) is arranged on the outside of the center frame (6), and the mounting assembly (8) is arranged on the top of the powder feeding rod (4). The clamping assembly (5) clamps the powder feeding rod (4) on the outside of the powder bin (1) so as to fit the powder feeding rod (4) on the inside of the center frame (6) and make the powder feeding rod (4) and the center frame (6) cocentric. The center of the center frame (6) is located at the center of the clamping assembly (5). The mounting assembly (8) connects the powder feeding rod (4) to the inner wall of the toner cartridge.

2. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 1, characterized in that: The clamping assembly (5) comprises an annular close fitting member (51), a column close fitting member (52) and a fixed column (53), wherein the fixed member is arranged on the outside of the powder bin (1), the distance between the powder feeding roller (4) and the magnetic roller (2) remains unchanged, the fixed column (53) is arranged on the center line of the powder feeding roller (4) and the magnetic roller (2), and the fixed column (53) contacts the powder feeding roller (4), the annular close fitting member (51) is arranged on the outside of the powder feeding roller (4), and the column close fitting member (52) is arranged on the other outside of the powder feeding roller (4), the annular close fitting member (51) and the column close fitting member (52) are adjusted according to the size of the powder feeding roller (4), and are combined with the fixed column (53) to maintain the distance between the powder feeding roller (4) and the magnetic roller (2) remains unchanged.

3. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 2, characterized in that: The annular close-fitting member (51) comprises a sliding groove (51a), a sliding block (51b), a first spring (51c), an annular clamping block (51d), a rebound module (51e) and a first empty groove (51f); the sliding groove (51a) is opened on the inner wall of the powder bin (1); the sliding block (51b) is slidably arranged inside the sliding groove (51a); the first spring (51c) is fixedly arranged inside the sliding block (51b); the annular clamping block (51d) is fixedly arranged at the other end of the first spring (51c); the first spring (51c) is respectively arranged on the annular clamping block (51 d), one end of the annular clamp block (51d) in the powder bin (1) is arc-shaped, the diameter of the annular clamp block (51d) is larger than the diameter of the powder feeding roller (4), the first empty groove (51f) is opened on the side of the powder bin (1), the annular clamp block (51d) is slidably arranged inside the first empty groove (51f), the width of the first empty groove (51f) is twice the thickness of the annular clamp block (51d), the rebound module (51e) is arranged at the top of the annular clamp block (51d), and the rebound module (51e) is tightly attached to the annular clamp block (51d) to fix the annular clamp block (51d).

4. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 3, characterized in that: The rebound module (51e) includes a fixed block (51e1) and a second spring (51e2), wherein the fixed block is fixedly arranged on the side of the powder bin (1), the second spring (51e2) is fixedly arranged on the bottom end of the fixed block (51e1), and the other end of the second spring (51e2) is fixedly connected to the upper end of the annular clamping block (51d), and the elastic coefficient of the second spring (51e2) is equal to the elastic coefficient of the first spring (51c).

5. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 4, characterized in that: The column-fitting member (52) comprises a second slot (52a), a third spring (52b), a clamping column (52c) and a sliding block (52d), wherein the second slot (52a) is provided on the side of the powder bin (1), the width of the second slot (52a) is equal to the diameter of the clamping column (52c), the clamping column (52c) is slidably arranged inside the second slot (52a), the clamping column (52c) is provided with a sliding block (52d) sliding in the powder bin (1), the diameter of the clamping column (52c) is equal to the diameter of the fixed column (53), the third spring (52b) is fixedly arranged on the wall of the powder bin (1), the other end of the third spring (52b) is fixedly arranged on the clamping column (52c), and the elastic coefficient of the third spring (52b) is equal to the elastic coefficient of the second spring (51e2).

6. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 5, characterized in that: The displacement assembly (7) comprises a first rotating block (71), a first knob column (72), a second movable member (73) and an intermediate support member (74), wherein one of the first rotating blocks (71) is rotatably disposed on the outside of the fixed column (53), and the other end of the first rotating block (71) is rotatably disposed on the outside of the first knob column (72), and the other first rotating block (71) is rotatably disposed on the outside of the clamping column (52c), and the other end of the first rotating block (71) is rotatably disposed on the outside of the first knob column (72). The distance between a knob column (72) is equal to the distance between another first rotating block (71) and the first knob column (72); the second movable member (73) is arranged between the annular clamping block (51d) and the clamping column (52c); the intermediate support member (74) is arranged outside the first knob column (72); the second movable member (73) is bent and rotated according to the size of the powder feeding roller (4) to change the position of the intermediate support member (74), so that the position of the center frame (6) connected to the intermediate support member (74) changes.

7. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 6, characterized in that: The second movable member (73) comprises a rotating chamber (73a), a rotating column (73b), a second rotating block (73c) and a second knob column (73d), wherein the rotating chamber (73a) is opened on the side of the annular clamp block (51d), the rotating column (73b) is fixedly arranged inside the rotating chamber (73a), the rotating column (73b) is flush with the wall surface of the annular clamp block (51d), and is rotatably arranged outside the rotating column (73b) together with the second rotating block (73c), and the other end thereof is rotatably arranged on the second rotating block (73c). The second rotating block (73c) is rotatably disposed on the outside of the clamping column (52c) and the other end is rotatably disposed on the outside of the second knob column (73d). The diameter of the rotating column (73b) is equal to the diameter of the clamping column (52c). The second rotating block (73c) is consistent with the first rotating block (71), and the distance between one of the second rotating blocks (73c) and the second knob column (73d) is equal to the distance between the other second rotating block (73c) and the second knob column (73d).

8. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 7, characterized in that: The intermediate support member (74) comprises a straightening block (74a), a first circular groove (74b), a second circular groove (74c) and a support column (74d), one of the support columns (74d) being fixedly arranged on the outer side of one of the first rotating blocks (71), and the other support column (74d) being fixedly arranged on the outer side of one of the second rotating blocks (73c); the first circular groove (74b) is penetrated through and opened on the straightening block (74a); the second circular groove (74c) is penetrated through and opened on the straightening block (74a); the support column (74d) is rotatably arranged on the inner side of the second circular groove (74c); the first knob column (72) and the second knob column (73d) are respectively rotatably arranged on the inner sides of different first circular grooves (74b); the straightening block (74a) is fixedly connected to the center frame (6); and the straightening block (74a) is respectively fixedly arranged at the center position of the first knob column (72) or the second knob column (73d).

9. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 8, characterized in that: The mounting assembly (8) comprises an assembly frame (81) and a universal disk (82); the assembly frame (81) is respectively arranged on the outer sides of both ends of the powder feeding roller (4); the universal disk (82) is arranged on the side of the assembly frame (81); the other end of the universal disk (82) is connected to the inner side of the toner cartridge housing to adjust the position of the powder feeding roller (4) connected to the toner cartridge housing.

10. The toner cartridge adapted to the specifications of the powder feeding roller according to claim 9, characterized in that: The universal disk (82) comprises a base disk (82a), a slide rail (82b) and a slide frame (82c); the base disk (82a) is fixedly arranged on the side of the assembly frame (81); the base disk (82a) and the assembly frame (81) have the same center; the slide rail (82b) is fixedly arranged on the other end surface of the base disk (82a); and the slide frame (82c) is slidably arranged on the inner side of the slide rail (82b).

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