CN116184789A - A seal and its manufacturing method - Google Patents

Abstract

The invention relates to a sealing element and a manufacturing method thereof, wherein the sealing element is arranged in a toner box, the toner box comprises a shell and a developing roller which is rotatably arranged on the shell around the axis of the toner box, the sealing element comprises a sealing body and a fluff layer, wherein: the sealing body is arranged between the shell and the developing roller, is fixed in the shell and is positioned at the axial end part of the developing roller; the nap layer sets up in the side that the seal deviates from the shell to with the circumferential surface butt of developing roller, nap in the nap layer extends towards developing roller axial another tip, and nap surpasss the edge of seal, through above-mentioned setting, be close to developing roller axial other end in the seal and be equipped with the nap, the developing roller rotates, the nap has cleaned the powdered ink that invades the first end of seal along the developing roller, avoid the first end of seal to pile up too much powdered ink, so developing roller rotates and can not lead to powdered ink to permeate outside the seal, developing roller rotates and can not produce the solidification to powdered ink after the seal rubs simultaneously.

Description

A kind of sealing element and its manufacturing method

technical field

The invention relates to the technical field of sealing, in particular to a sealing element and a manufacturing method thereof.

Background technique

As shown in Figure 1, the toner cartridge includes a casing and a toner bin, a powder feeding roller, and a developing roller arranged on the casing. Hold the toner, and the side of the developing roller away from the powder feeding roller is in contact with the photosensitive drum. The printing process of the printer and copier is: the toner in the toner chamber is conveyed by the toner feeding roller, and the toner is evenly dispersed to the developing On the surface of the roller, the toner on the surface of the developing roller will be transferred to the photosensitive drum when the developing roller rotates to form an electrostatic image and then realize laser printing. In the above printing process, in order to prevent the toner on the developing roller from leaking from the axial end of the developing roller when the developing roller rotates, seals are installed at both ends of the developing roller in the axial direction for sealing. The circumferential surface of the roller abuts and the other side of the seal is secured to the housing.

The current seal includes a sealing layer, an adhesive layer and an elastic layer arranged in sequence. The adhesive layer can be double-sided adhesive tape to bond the sealing layer and the elastic layer. The material of the elastic layer is a foam material, and the material of the sealing layer can be It is felt, PTFE fiber or other chemical fiber fabrics, etc. The side of the sealing layer away from the adhesive layer is in contact with the circumferential surface of the developing roller, and the side of the elastic layer away from the adhesive layer is installed in the shell. The elastic layer and the The orthographic projection of the sealing layer on the adhesive layer completely coincides with the adhesive layer, that is, the end face of the sealing member is flat.

As shown in Figure 2, but during the long-term use of the seals, the ends of the two seals that are close to each other are the first ends, and the first end is prone to accumulation of toner, which is the intrusion of toner along the developing roller Caused by the first end of the seal, when the toner invades too much, on the one hand, the rotation of the developing roller will cause the toner to penetrate out of the seal and cause powder leakage; on the other hand, the rotation of the developing roller will form friction with the seal , When too much toner is intruded into the seal, it is easy to cause frictional solidification of the toner in the seal, which will drastically reduce the sealing performance of the seal, resulting in the failure of the seal to leak powder, and the sealing effect will not be achieved.

Contents of the invention

Based on this, it is necessary to provide a sealing member and a manufacturing method thereof for the problem that the first end of the sealing member is flat and easily leads to powder leakage.

A seal, installed in a toner cartridge, the toner cartridge includes a casing and a developing roller rotatably mounted on the casing around its own axis, the seal includes: a seal body and a fluff layer, wherein:

The sealing body is arranged between the casing and the developing roller, fixed in the casing, and located at the axial end of the developing roller;

The fluff layer is arranged on the side of the sealing body away from the housing, and abuts against the circumferential surface of the developing roller, and the fluff in the fluff layer extends toward the other axial end of the developing roller , and the fluff exceeds the edge of the sealing body.

The above-mentioned sealing member realizes the sealing of the axial end of the developing roller by arranging the sealing body between the shell and the developing roller, and the sealing body is located at the axial end of the developing roller. The other end near the axial end of the developing roller in the existing sealing member is the first end. Compared with the flat end surface of the first end of the existing sealing member, the application sets the fluff and the circumference of the axial end of the developing roller. It abuts against the surface and exceeds the edge of the sealing body, and the fluff extends toward the other end of the developing roller axial direction, that is, the first end of the sealing member in this application is provided with fluff beyond the edge of the sealing body, so that the developing roller rotates , the developing roller moves relative to the fluff, and the fluff sweeps the toner that invades the first end of the seal along the developing roller, preventing the toner from intruding into the first end of the seal along the developing roller, thus avoiding the sealing of the seal When the first end accumulates too much toner, the rotation of the developing roller causes the toner to penetrate out of the seal, and at the same time avoids the curing of the toner after the developing roller rotates and rubs against the seal when the seal is invaded by a large amount of toner , so it will not reduce the sealing performance of the seal, will not cause the seal to fail and leak powder, and also prolong the service life of the seal.

In one embodiment, the length of the hairs ranges from 1 mm to 10 mm.

In one of the embodiments, the hairs are oblique hairs and have the same inclination direction.

In one embodiment, the included angle between the fluff and the edge of the sealing body is a first included angle, and the range of the first included angle is 20°-70°.

In one embodiment, the material of the fluff is PTFE fiber.

In one of the embodiments, the fineness range of the PTFE fiber is 1D-10D.

In one embodiment, the length of the fluff beyond the edge of the sealing body ranges from 0.1 mm to 10 mm.

The present invention also provides a method for manufacturing the seal based on any one of the above implementations, including the following steps:

S1, providing a sealing body;

S2. Weaving fluff onto the sealing body to form a fluff layer;

S3, subjecting the fluff to an oblique fluffing process, so that the fluff exceeds the edge of the sealing body, so as to obtain the sealing member.

The manufacturing method of the above-mentioned sealing member firstly obtains the sealing body through step S1; through step S2, weaves the fluff on the sealing body to obtain a fluff layer; then through step S3, the fluff is subjected to the oblique wool process, so that the fluff exceeds the edge of the sealing body, to get the seal. Through the above-mentioned setting, the manufacture of the sealing member is realized relatively conveniently. The operation of the whole process is simple and convenient, and the operability is strong, and by subjecting the fluff to the oblique wool process, the fluff exceeds the edge of the sealing body, compared with the existing sealing member. As far as the first end is a flat end face, the present application sets the fluff beyond the edge of the sealing body, that is, the first end of the seal of the present application can have fluff, so that when the developing roller rotates, the developing roller and the fluff relatively move, and the fluff can The toner that invaded the first end of the sealing member along the developing roller was cleaned, preventing the toner from intruding into the sealing member along the developing roller, thus avoiding the development roller rotation caused by excessive toner accumulation at the first end of the sealing member The phenomenon that the toner penetrates out of the seal, and at the same time avoids the solidification of the toner after the developing roller rotates and rubs against the seal when the seal is invaded by a large amount of toner, prolonging the service life of the seal.

In one of the embodiments, in step S3, the following steps are included:

S31, subjecting the fluff to an oblique fluffing process, so that the fluff exceeds the edge of the sealing body;

S32. Cut off the fluff beyond the edge of the sealing body according to a set length, so as to obtain the sealing member.

In one of the embodiments, after step S3, the following steps are further included:

S4. Check the size, appearance and function of the seal;

S5. Packing the sealing parts and putting them into storage.

Description of drawings

Fig. 1 is a structural schematic diagram of a toner cartridge in the prior art;

Fig. 2 is a schematic diagram of toner accumulation on the existing seal after the seal is assembled with the display roller in the prior art;

Fig. 3 is a schematic diagram of a seal provided by the present invention after being assembled with a display roller;

Fig. 4 is a schematic diagram of the sealing member and the developing roller in Fig. 3;

Fig. 5 is a schematic structural diagram of the seal in Fig. 3;

Fig. 6 is a schematic diagram of the angle between the fluff and the edge of the sealing body in a seal provided by the present invention;

Fig. 7 is a flow chart of a method for manufacturing a seal provided by the present invention.

in:

10. Sealing member; 11. First end; 20. Toner cartridge; 21. Shell; 22. Toner bin; 23. Powder feeding roller; 24. Developing roller; 30. Photosensitive drum; 40. Toner powder;

100, sealing body; 110, sealing layer; 120, adhesive layer; 130, elastic layer;

200, fluff layer; 210, fluff; 300, the first included angle.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiments.

Referring to Fig. 3, Fig. 4 and Fig. 5 for implementation, an embodiment of the present invention provides a sealing member 10 installed in a toner cartridge 20. The toner cartridge 20 includes a housing 21 and is rotatably installed in the The developing roller 24 of the housing 21, when specifically arranged, the quantity of the sealing member 10 is two, and the two sealing members 10 are all arranged between the housing 21 and the developing roller 24, and the sealing member 10 is used to seal the axial direction of the developing roller 24. Two seals 10 are respectively located at the two axial ends of the developing roller 24, one side of the seal 10 is fixed to the casing 21, and the other side of the seal 10 abuts against the axial end of the developing roller 24, Without affecting the rotation of the developing roller 24, one end close to each other in the two sealing members 10 is the first end 11, and the sealing member 10 includes a sealing body 100 and a fluff layer 200, wherein:

The sealing body 100 is arranged between the casing 21 and the developing roller 24, the sealing body 100 is fixed in the casing 21, and the sealing body 100 is located at the axial end of the developing roller 24. When specifically arranged, the sealing body 100 includes a stacked sealing layer 110. The adhesive layer 120 and the elastic layer 130. The adhesive layer 120 is used to connect the sealing layer 110 and the elastic layer 130 as a whole. The side of the elastic layer 130 facing away from the adhesive layer 120 is installed in the shell 21. The material is a foaming material, and the material of the sealing layer 110 can be felt, PTFE fiber or other chemical fiber fabrics, etc. The elastic layer 130 in the sealing body 100 and the sealing layer 110 are all completely consistent with the adhesive layer 120 in the positive projection of the adhesive layer 120. overlap, that is, the end face of the sealing body 100 is flat;

The fluff layer 200 is arranged on the side of the sealing body 100 away from the toner cartridge 20, the fluff layer 200 abuts against the circumferential surface of the developing roller 24, and the fluff 210 in the fluff layer 200 extends towards the other axial end of the developing roller 24, And the fluff 210 exceeds the edge of the sealing body 100 . Through the above arrangement, the fluff 210 abutting against one end of the developing roller 24 in the axial direction extends toward the other end of the developing roller 24 in the axial direction, and the fluff 210 at the two ends of the developing roller 24 in the axial direction face each other, so that the fluff 210 on the developing roller 24 When rotating, the developing roller 24 and the fluff 210 move relative to each other, which means that the fluff 210 cleans the toner 40 that invades the first end 11 of the seal 10 along the developing roller 24 and prevents the toner 40 from penetrating along the developing roller 24 The first end 11 of the sealing member 10, so that the toner 40 will not invade the first end 11 of the sealing member 10 in a large amount, thereby avoiding the phenomenon that the developing roller 24 rotates and causes the toner 40 to penetrate out of the sealing member 10, while the developing roller 24 When the rotation forms friction with the sealing member 10, when a large amount of toner 40 is not intruded into the sealing member 10, the toner 40 in the sealing member 10 will not be frictionally solidified, thus the sealing performance of the sealing member 10 will not be reduced, and the sealing performance of the sealing member 10 will not be reduced. This causes the sealing member 10 to fail and leak powder, and also prolongs the service life of the sealing member 10 .

It should be noted that the price of the toner cartridge 20 is relatively high, and incidents of scrapping the toner cartridge 20 due to failure of the sealing member 10 emerge in endlessly. At present, printer manufacturers generally set the number of printed paper in the toner cartridge 20 before the failure of the sealing member 10. , it can be seen that the life of the sealing member 10 affects the life of the entire toner cartridge 20 and the cost of printing consumables. In this application, setting the fluff layer 200 greatly reduces the phenomenon that the toner 40 invades the sealing member 10 from the first end 11 and improves the printing life.

The sealing member 10 achieves the sealing of the axial end of the developing roller 24 by disposing the sealing body 100 between the shell 21 and the developing roller 24 , and the sealing body 100 is located at the axial end of the developing roller 24 . The other end near the axial direction of the developing roller 24 in the existing sealing member is the first end 11. Compared with the flat end surface of the first end 11 of the existing sealing member, the present application sets the fluff 210 and the developing roller 24 axially. The circumferential surface toward the end abuts against and exceeds the edge of the sealing body 100, and the fluff 210 extends toward the other end of the developing roller 24 in the axial direction, that is, the first end 11 of the sealing member 10 in the present application is provided beyond the sealing body 100. The fluff 210 on the edge makes the developing roller 24 rotate relative to the fluff 210, and the fluff 210 cleans the toner 40 that invades the first end 11 of the sealing member 10 along the developing roller 24, preventing The toner 40 invades the first end 11 of the sealing member 10 along the developing roller 24, thereby avoiding that when the first end 11 of the sealing member 10 accumulates too much toner 40, the developing roller 24 rotates and causes the toner 40 to penetrate into the sealing member 10 At the same time, when the sealing member 10 is invaded by a large amount of toner 40, the solidification of the toner 40 after the developing roller 24 rotates and rubs against the sealing member 10 will not reduce the sealing performance of the sealing member 10, and will not cause The sealant 10 fails to leak powder, which also prolongs the service life of the sealant 10 .

In order to ensure that the fluff 210 can exceed the edge of the sealing body 100, in a preferred embodiment, the length of the fluff 210 is in the range of 1mm-10mm. For any value, during specific operation, it is possible to weave the fluff 210 with a set height on the surface of the sealing layer 110 in the sealing body 100, and then press the fluff 210 towards the direction beyond the edge of the sealing body 100, so that the fluff 210 Beyond the edge of the sealing layer 110, that is, the set height of the weaving of the fluff 210 is the length range of the fluff 210 after it is pressed down, that is, 1mm-10mm. edge, but the length range of the fluff 210 is not limited to 1mm-10mm, and can exceed the range of the edge of the sealing body 100.

As shown in FIG. 6 , in order to ensure that the fluff 210 can better clean the toner 40 , in a preferred embodiment, the fluff 210 is oblique and has the same inclination direction. In the specific setting, after weaving the fluff 210 of a set height on the surface of the sealing layer 110, in the process of pressing the fluff 210 toward the direction beyond the edge of the sealing body 100, the specific operation is to beat the fluff 210 so that The fluff 210 has a set angle to the edge of the sealing body 100 , so that the fluff 210 can better sweep away the toner 40 that invades the first end 11 of the sealing member 10 along the developing roller 24 .

In order to better sweep away the toner 40 that invades the first end 11 of the sealing member 10 along the developing roller 24, specifically, the included angle between the fluff 210 and the edge of the sealing body 100 is a first included angle 300, and the first included angle 300 The range is 20°-70°. In the specific setting, the included angle between the fluff 210 and the edge of the sealing body 100 can be any value in 30°, 40°, 50°, 60° and 20°-70°, which is the first result obtained through repeated experiments. The optimal angle range of the included angle 300, when the included angle range between the fluff 210 and the edge of the sealing body 100 is within 20°-70°, the fluff 210 can be easily moved along the developing roller 24 when the developing roller 24 rotates. The toner 40 intruding into the first end 11 of the sealing member 10 is swept into the casing 21 , which greatly slows down the intrusion of the toner 40 into the sealing member 10 and improves the service life of the sealing member 10 . In order to clean the toner 40 more effectively, the fluff 210 is inclined obliquely upward along the edge of the sealing body 100 during specific arrangement.

In order to ensure the stability of the fluff 210 when cleaning the toner 40 , in a preferred embodiment, the fluff 210 is made of PTFE fiber. PTFE fiber is a synthetic fiber made of polytetrafluoroethylene as raw material, which is cut or fibrillated after being spun or made into a film. PTFE fiber has the best service life and working stability, and is suitable for toner 40 for cleaning. When setting it specifically, the material of the fluff 210 can also be fiber materials such as acrylic fibers, nylon, spandex, polyester, etc., but the material of the fluff 210 is not limited to the above-mentioned fibers, and other chemical fiber materials can be used.

When the toner 40 is adsorbed on the developing roller 24, it has a certain adsorption force. In order to make the fluff 210 made of PTFE fibers have a certain hardness, the toner 40 can be cleaned more conveniently. Specifically, the fineness range of the PTFE fibers is 1D. -10D. Denier refers to the weight in grams of 9000 meters of yarn or fiber at a given moisture regain. That is, when a 9000-meter-long fiber weighs one gram, it is called 1D. When the specific gravity is constant, the larger the D value is, the thicker the yarn or fiber is, otherwise the smaller the D value, the finer the fiber. In the specific setting, the fineness of PTFE fiber can be any value in 2D, 4D, 6D, 8D, 9D and 1D-10D, and the fineness of PTFE fiber can be controlled within the range of 1D-10D, which is obtained through repeated experiments The optimal fineness range of the PTFE fiber produced, when the fineness of the PTFE fiber is less than 1D, the PTFE fiber is too thin, the cleaning power of the toner 40 is not enough, and the toner 40 will still adhere. When the fineness of the PTFE fiber is greater than 10D , will affect the sealing performance of the seal 10.

In order to more conveniently resist the toner 40 from entering the first end 11 of the sealing member 10 along the developing roller 24 , in a preferred embodiment, the length of the fluff 210 beyond the edge of the sealing body 100 ranges from 0.1 mm to 10 mm. When setting specifically, the length of the fluff 210 beyond the edge of the sealing body 100 can be any value in 0.5mm, 1mm, 2.5mm, 4mm, 8.5mm and 0.1mm-10mm, and the length of the fluff 210 beyond the edge of the sealing body 100 is controlled In the range of 0.1mm-10mm, this is the optimal range obtained through repeated experiments. When the length of the fluff 210 beyond the edge of the sealing body 100 is less than 0.1mm, the fluff 210 is too short, and the fluff 210 cannot effectively resist the toner 40. The developing roller 24 intrudes into the first end 11 of the sealing member 10, which is not conducive to the cleaning of the toner 40 by the fluff 210. When the length of the fluff 210 beyond the edge of the sealing body 100 is greater than 10 mm, the fluff 210 is too long, which affects the development roller 24. The toner 40 in its middle section is transferred onto the photosensitive drum 30 . By controlling the length of the fluff 210 beyond the edge of the sealing body 100 within 0.1mm-10mm, the fluff 210 can effectively clean the toner 40, reduce the accumulation of the toner 40 on the edge of the first end 11 of the sealing member 10, and greatly improve the sealing effect. Improve seal 10 life.

As shown in FIG. 7 , the second embodiment of the present invention also provides a method for manufacturing the seal 10 based on any of the above-mentioned embodiments, including the following steps:

Step S1, providing a sealing body 100. In specific configuration, the sealing body 100 includes a sealing layer 110, an adhesive layer 120 and an elastic layer 130 stacked in layers. The adhesive layer 120 is used to connect the sealing layer 110 and the elastic layer 130 into a One body, the side of the elastic layer 130 facing away from the adhesive layer 120 is installed in the shell 21;

Step S2, weaving the fluff 210 onto the sealing body 100 to form the fluff layer 200, and in specific setting, weaving the fluff 210 to the side of the sealing layer 110 away from the adhesive layer 120 by a knitting machine, and knitting to a set height;

Step S3 , subjecting the fluff 210 to an oblique wool process, so that the fluff 210 exceeds the edge of the sealing body 100 , so as to obtain the sealing member 10 . In the specific setting, the fluff 210 is obliquely processed by the beveling machine, so that the fluff 210 exceeds the edge of the sealing body 100 and forms a set first included angle 300 with the edge of the sealing body 100 .

When using the sealing member 10 specifically, the sealing member 10 is arranged at the axial end of the developing roller 24, and the side of the sealing body 100 away from the fluff layer 200 is fixed in the housing 21, and the fluff 210 and the circumference of the developing roller 24 axial end are fixed. Abutting against the surface, the fluff 210 extends toward the other axial end of the developing roller 24, so that when the developing roller 24 rotates, the developing roller 24 and the fluff 210 move relative to each other, and the fluff 210 can penetrate the sealing member along the developing roller 24. 10 The toner 40 at the first end 11 has been cleaned, preventing the toner 40 from intruding into the sealing member 10 along the developing roller 24, thereby avoiding that when the first end 11 of the sealing member 10 accumulates too much toner 40, the developing roller 24 Rotation causes the phenomenon that the toner 40 penetrates out of the sealing member 10, and at the same time avoids the solidification of the toner 40 after the developing roller 24 rotates and rubs against the sealing member 10 when the sealing member 10 is invaded by a large amount of toner 40, prolonging the sealing time of the sealing member. 10 service life.

The manufacturing method of the above-mentioned sealing member 10 first obtains the sealing body 100 through step S1; through step S2, weaves the fluff 210 on the sealing body 100 to obtain the fluff layer 200; 210 beyond the edge of the sealing body 100 to obtain the sealing 10 . Through the above arrangement, the manufacture of the sealing member 10 is realized more conveniently, the operation of the whole process is simple and convenient, and the operability is strong, and by subjecting the fluff 210 to the oblique wool process, the fluff 210 exceeds the edge of the sealing body 100, compared with the existing As far as the first end 11 of the sealing member 10 is a flat end face, the present application sets the fluff 210 beyond the edge of the sealing body 100, that is, the first end 11 of the sealing member 10 of the present application can have the fluff 210, so that the developing roller 24 is rotating , the developing roller 24 and the fluff 210 relatively move, and the fluff 210 can clean the toner 40 that invades the first end 11 of the sealing member 10 along the developing roller 24, preventing the toner 40 from intruding into the sealing member along the developing roller 24 10, thereby avoiding the phenomenon that when the first end 11 of the sealing member 10 accumulates too much toner 40, the developing roller 24 rotates and causes the toner 40 to penetrate out of the sealing member 10, and at the same time prevents the sealing member 10 from being invaded by a large amount of toner 40 When the developing roller 24 rotates and rubs against the sealing member 10, the solidification of the toner 40 occurs, which prolongs the service life of the sealing member 10.

In order to make the fluff 210 more conveniently exceed the edge setting length of the sealing body 100, a preferred embodiment, in step S3, includes the following steps:

Step S31, subjecting the fluff 210 to the beveling process, so that the fluff 210 exceeds the edge of the sealing body 100, and in the specific setting, use the beveling machine to perform beveling treatment;

Step S32 , cutting the fluff 210 beyond the edge of the sealing body 100 according to a set length, so as to obtain the sealing member 10 . In the specific setting, the fluff 210 can be cut and processed by laser cutting or die forming, so that the length of the fluff 210 beyond the edge of the sealing body 100 meets the set length, and the length of the fluff 210 beyond the edge of the sealing body 100 is within 0.1mm- Within 10mm.

It should be noted that the method for manufacturing the sealing member 10 can also include the following steps: providing a sealing layer 110, the material of which can be felt, PTFE fiber or other chemical fiber fabrics, etc.; The fluff layer 200 with a high height can be woven by a knitting machine; then the fluff 210 is beveled so that the fluff 210 exceeds the edge of the sealing body 100, and the fluff 210 and the edge of the sealing body 100 are at a set first included angle 300, the range of the first included angle 300 is 20°-70°, and the beveling process of the fluff 210 is generally performed by a beveling machine; the fluff 210 beyond the edge of the sealing body 100 is cut according to the set length, and the length requirement is met. the fluff 210; make the foam material to obtain the elastic layer 130, the size of the elastic layer 130 is consistent with the size of the sealing layer 110; the side of the sealing layer 110 away from the fluff layer 200 is bonded to the elastic layer 130 through the adhesive layer 120, so as to The sealing member 10 is obtained, wherein the adhesive layer 120 may be a double-sided adhesive.

In order to form the seal 10 that finally meets the customer's requirements, a preferred embodiment, after step S3, also includes the following steps:

Step S4, check the size, appearance and function of the seal 10; in this process, the manufactured seal 10 will be checked for size, appearance and function according to the preset requirements. The required products are eliminated and on the other hand, it is to select good products to ensure that the products sold in the future meet the set requirements;

Step S5, packing the sealing member 10 into storage. The selected seals 10 that meet the requirements are packaged and protected with packaging materials and then put into storage. After the seals 10 are put into storage, when a customer subsequently orders a product, it can be selected by the customer and at the same time it is ensured that the seals 10 presented to the customer are all high-quality products.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A seal, installed in a toner cartridge, the toner cartridge includes a casing and a developing roller that is rotatably mounted on the casing around its own axis, characterized in that it includes: a sealing body and a fluff layer, wherein : The sealing body is arranged between the casing and the developing roller, fixed in the casing, and located at the axial end of the developing roller; The fluff layer is arranged on the side of the sealing body away from the housing, and abuts against the circumferential surface of the developing roller, and the fluff in the fluff layer extends toward the other axial end of the developing roller , and the fluff exceeds the edge of the sealing body. 2. The sealing member according to claim 1, characterized in that, the length of the hairs ranges from 1 mm to 10 mm. 3. The sealing member according to claim 1, wherein the fluff is oblique fluff and has the same inclination direction. 4 . The sealing member according to claim 3 , wherein the included angle between the fluff and the edge of the sealing body is a first included angle, and the range of the first included angle is 20°-70°. 5. The sealing member according to claim 1, characterized in that, the material of the fluff is PTFE fiber. 6. The sealing member according to claim 5, characterized in that, the fineness range of the PTFE fibers is 1D-10D. 7. The sealing member according to claim 1, characterized in that the length of the fluff beyond the edge of the sealing body ranges from 0.1 mm to 10 mm. 8. A manufacturing method based on the seal according to any one of claims 1-7, characterized in that it comprises the following steps: S1, providing a sealing body; S2. Weaving fluff onto the sealing body to form a fluff layer; S3, subjecting the fluff to an oblique fluffing process, so that the fluff exceeds the edge of the sealing body, so as to obtain the sealing member. 9. The manufacturing method of the seal according to claim 8, characterized in that, in step S3, comprising the following steps: S31, subjecting the fluff to an oblique fluffing process, so that the fluff exceeds the edge of the sealing body; S32. Cut off the fluff beyond the edge of the sealing body according to a set length, so as to obtain the sealing member. 10. The method for manufacturing a seal according to claim 8, further comprising the following steps after step S3: S4. Check the size, appearance and function of the seal; S5. Packing the sealing parts and putting them into storage.

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