Yarn clearing device for yarn conveyor

Abstract

The utility model belongs to the technical field of textile equipment, and particularly relates to a yarn cleaning device for a yarn conveyor, which comprises a bottom plate, a top cover is fixedly connected to the upper side of the bottom plate, a plurality of avoiding grooves with different groove pitches are arranged on the top cover and the bottom plate, a plurality of plastic-coated layers are connected between the top cover and the bottom plate, each plastic-coated layer is coated with a yarn cleaning sheet, and the yarn cleaning sheets are arranged on the bottom plate. A yarn clearing groove is formed between every two opposite yarn clearing pieces, a limiting ring is arranged in the center of the inner side of the top cover, the outer wall of the limiting ring is fixedly connected with a limiting piece, limiting heads with different widths are arranged at the positions, corresponding to the receding grooves, of the outer edge of the limiting piece, and the two sides of each limiting head are tightly attached to the two adjacent yarn clearing pieces. According to the yarn clearing device, the base and the yarn clearing pieces which are made of different materials can be adopted to form a whole, meanwhile, the structural strength and abrasion resistance of the yarn clearing device are met, the damaged yarn clearing pieces can be independently replaced, the use cost is reduced, the service life of the device is prolonged, and the precision of the space between the yarn clearing grooves is guaranteed by abutting against the two yarn clearing pieces through the limiting head.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile equipment, in particular to a yarn clearing device for a yarn feeder. Background Art

[0002] The main function of the yarn clearer is to allow the yarn to pass through the wire groove on the yarn clearer, so as to remove impurities on the screening press and prevent the impurities from affecting the quality of the yarn and the weaving effect. The existing yarn clearers are mostly made of metal. When working, the yarn and the yarn clearer rub at high speed. After a period of use, the long-term friction between the yarn and the yarn filter groove is prone to cause grooving, which will cause the yarn to get hung or broken, seriously affecting the normal operation of the knitting machine.

[0003] In the prior art, there is a yarn cleaner made of a whole fired ceramic material. Although it has high hardness and good wear resistance, the ceramic material is fragile and the grooves in contact with the yarn are difficult to polish. Therefore, there is a problem that the grooves are not polished properly, and the rough surface inside the grooves scrapes the yarns. In addition, the yarn knot filter processed by the ceramic material has the disadvantages of high cost and high scrap rate of fragility.

[0004] The Chinese patent with the authorization announcement number CN113684603B discloses a knitting yarn feeding device and a yarn knot filter thereof, including a base and a yarn clearing assembly fixed on the base; the yarn clearing assembly includes two independent yarn clearing blades; the two yarn clearing blades at least partially extend outward from the base, and a yarn clearing gap is constructed between the extended parts, or the two yarn clearing blades are embedded in the base, and a yarn clearing gap for the yarn to pass through is constructed between the two yarn clearing blades, and a avoidance port corresponding to the yarn clearing gap is provided on the base, the diameter of the avoidance port is larger than the diameter of the yarn clearing gap, and the yarn clearing ends of the two yarn clearing blades are both in the avoidance port. The yarn knot filter can meet the overall strength requirements and the requirements of high hardness and high wear resistance of the yarn clearing part; and it is convenient to polish the inner wall edge of the yarn clearing gap.

[0005] However, the above has the following shortcomings:

[0006] The above patent forms a solid whole by combining a base and a yarn clearing sheet, uses the base to improve the overall strength, and uses the yarn clearing sheet to increase the hardness and wear resistance of the working part. However, the manufacturing of the above patent is complicated and the processing cost is high, and the yarn clearing sheet cannot be replaced. Once one set of the yarn clearing sheets is damaged or the base is damaged, it cannot be replaced and can only be scrapped as a whole, which increases the cost of use.

[0007] Since the yarn clearing gap is designed to allow yarns of corresponding diameter to pass through and to scrape off impurities on the yarns, high requirements are placed on the dimensional accuracy of the yarn clearing gap. During processing, the above-mentioned patent combines the base with the yarn clearing sheet. However, due to the influence of the processing error and shrinkage of the base and the installation error of the yarn clearing sheet, the above-mentioned patent is difficult to ensure that the dimensional accuracy of the yarn clearing gap meets the requirements, which affects the yarn passing effect and the scraping effect on impurities. Utility Model Content

[0008] In order to overcome the deficiencies of the prior art, the utility model solves the technical problem of utilizing a bottom plate and a top cover to form a base to support a high-hardness and highly wear-resistant yarn clearing piece, thereby improving the overall structural strength while increasing the hardness and wear resistance of the working position, effectively improving the cleaning effect of the yarn, avoiding yarn snagging and increasing the service life; at the same time, each yarn clearing piece can be replaced individually, and each yarn clearing piece can be processed individually to facilitate grinding and polishing to avoid yarn snagging; the yarn clearing pieces can be positioned by means of limit pieces, thereby ensuring that the dimensional accuracy of the yarn clearing grooves formed between the yarn clearing pieces is accurate, thereby improving the yarn passing effect and the scraping effect on impurities.

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a yarn clearing device for a yarn feeder, comprising a bottom plate, a top cover is fixedly connected to the upper side of the bottom plate, a plurality of avoidance grooves with different groove spacings are evenly distributed on the top cover and the bottom plate, a group of symmetrical plastic coating layers are slidably connected between the top cover and the bottom plate at both sides of each avoidance groove, each of the plastic coating layers is coated with a yarn clearing sheet, a yarn clearing groove is formed between two opposite yarn clearing sheets, and a limiting component is fixedly connected between the top cover and the bottom plate.

[0010] The base composed of the bottom plate and the top cover is used to support the high-hardness and high-wear-resistant yarn cleaning sheet, which improves the overall structural strength while increasing the hardness and wear resistance of the working position, effectively improving the yarn cleaning effect, avoiding yarn snagging and increasing the service life.

[0011] Furthermore, the top cover and the bottom plate are made of plastic material, the top cover and the bottom plate are firmly combined by ultrasonic welding, and the yarn clearing piece is made of ceramic material.

[0012] The bottom plate and the top cover are welded together by ultrasonic welding, which can further improve the overall strength of the yarn clearing device and achieve stable clamping and fixing of the yarn clearing piece, thereby ensuring stable operation of the yarn clearing piece.

[0013] Furthermore, an inclined slide groove is provided on the inner side of the top cover at a position corresponding to each plastic coating layer, and a slide pin slidably connected to the slide groove is provided on one side of each plastic coating layer close to the bottom plate, and each slide pin is interference fit with the corresponding slide groove.

[0014] The sliding connection between the sliding pin and the sliding groove is utilized to realize the replacement of a single yarn clearing piece, which effectively reduces the use and maintenance costs and increases the service life of the device. The interference fit between the sliding pin and the sliding groove ensures that the yarn clearing piece can be stably fixed between the top cover and the bottom plate, thus preventing the yarn clearing piece from accidentally falling off.

[0015] Moreover, the inclined slide groove can gradually reduce the distance between the two yarn clearing sheets during the process of inserting the plastic coating layer into the bottom plate and the yarn clearing sheet, thereby achieving the effect of adjusting the distance.

[0016] Furthermore, the limiting component includes a limiting ring, which is arranged at the inner center of the bottom plate, and the outer wall of the limiting ring is fixedly connected to a limiting plate, and the outer edge of the limiting plate is provided with limiting heads of different widths at the corresponding positions of each avoidance groove, and each of the limiting heads extends into the corresponding avoidance groove, and the two sides of each limiting head are tightly fitted with two adjacent yarn clearing plates, and the limiting plate is made of stamping metal material.

[0017] The spacing between the two yarn clearing pieces is limited by a limiting head, thereby ensuring that the spacing of each yarn clearing slot accurately meets the size requirements, ensuring the passability of the yarn and the scraping effect on impurities. At the same time, the limiting piece is easy to process and easy to control the dimensional accuracy, which can effectively avoid the influence of the processing accuracy and shrinkage rate of the top cover and the bottom plate.

[0018] Furthermore, bolt holes are provided at the centers of the top cover and the bottom plate, and a plurality of positioning holes are evenly distributed between every two avoidance grooves on the top cover and the bottom plate.

[0019] Furthermore, a bolt is rotatably connected in the bolt hole, a mounting plate is rotatably connected to the bolt and rotates relative to the base plate, a spring surrounding the bolt is connected between the mounting plate and the end of the bolt, a nut close to the top cover is threadedly connected to the bolt, a positioning pin inserted into the positioning hole is fixedly connected to one side of the mounting plate close to the base plate, and a yarn hole is fixedly connected to the upper end of the mounting plate.

[0020] By arranging the bolts and the positioning pins, the yarn clearing grooves with different spacings can be conveniently replaced in the working position, thereby realizing the yarn clearing work for the yarns with different diameters.

[0021] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0022] The base composed of the bottom plate and the top cover is used to support the high-hardness and high-wear-resistant yarn cleaning sheet, which improves the overall structural strength while increasing the hardness and wear resistance of the working position, effectively improving the yarn cleaning effect, avoiding yarn snagging and increasing the service life.

[0023] By utilizing the sliding connection between the sliding pin and the sliding groove, the individual yarn clearing piece can be replaced, which effectively reduces the use and maintenance costs and increases the service life of the device.

[0024] The inclined slide groove cooperates with the slide pin to adjust the spacing of the yarn clearing pieces when installing them, and the spacing between the two yarn clearing pieces is limited by the limit head, thereby ensuring that the spacing of each yarn clearing groove accurately meets the size requirements, ensuring the passability of the yarn and the scraping effect on impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0026] Figure 2 This is a schematic diagram of the structure of this patent.

[0027] Figure 3 Schematic diagram of the internal structure of the top cover and the bottom plate.

[0028] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0029] Figure 5 A schematic diagram of the structure of the top cover.

[0030] Figure 6 It is a schematic diagram of the structure of the yarn clearing piece and the plastic coating layer.

[0031] Figure 7 It is a cross-sectional schematic diagram.

[0032] Explanation of the reference numerals: top cover 10; bottom plate 11; yarn clearing piece 12; plastic coating layer 13; sliding pin 14; positioning hole 15; bolt hole 16; limiting ring 17; limiting piece 18; limiting head 19; mounting head 20; slide groove 21; mounting plate 22; positioning pin 23; bolt 24; spring 25; nut 26; yarn hole 27; yarn clearing groove 28; avoidance groove 29. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0034] Embodiment 1:

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a yarn clearing device for a yarn feeder comprises a bottom plate 11, a top cover 10 is fixedly connected to the upper side of the bottom plate 11, a plurality of avoidance grooves 29 with different groove spacings are evenly distributed on the top cover 10 and the bottom plate 11, a group of symmetrical plastic coating layers 13 are slidably connected between the top cover 10 and the bottom plate 11 at both sides of each avoidance groove 29, each plastic coating layer 13 is coated with a yarn clearing piece 12, a yarn clearing groove 28 is formed between two opposite yarn clearing pieces 12, and a limiting component is fixedly connected between the top cover 10 and the bottom plate 11.

[0036] The base formed by the bottom plate 11 and the top cover 10 supports the high-hardness and high-wear-resistant yarn cleaning sheet 12, which improves the overall structural strength while increasing the hardness and wear resistance of the working position, effectively improving the yarn cleaning effect, avoiding yarn snagging and increasing the service life.

[0037] As Figure 1 , Figure 2 and Figure 3 As shown, a bolt hole 16 is opened at the center of the top cover 10 and the bottom plate 11 , and a plurality of positioning holes 15 are evenly distributed between every two avoidance grooves 29 on the top cover 10 and the bottom plate 11 .

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, a bolt 24 is rotatably connected in the bolt hole 16, a mounting plate 22 is rotatably connected to the bolt 24 and rotates relative to the base plate 11, a spring 25 surrounding the outside of the bolt 24 is connected between the mounting plate 22 and the end of the bolt 24, a nut 26 close to the top cover 10 is threadedly connected to the bolt 24, a locating pin 23 inserted into the locating hole 15 is fixedly connected to the side of the mounting plate 22 close to the base plate 11, and a yarn hole 27 is fixedly connected to the upper end of the mounting plate 22.

[0039] By providing the bolts 24 and the positioning pins 23, the yarn clearing grooves 28 with different spacings can be conveniently replaced in the working position, thereby realizing the yarn clearing work for the yarns with different diameters.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the top cover 10 and the bottom plate 11 are made of plastic material, the top cover 10 and the bottom plate 11 are firmly combined by ultrasonic welding, and the yarn clearing piece 12 is made of ceramic material.

[0041] The bottom plate 11 and the top cover 10 are welded together by ultrasonic welding, which can further improve the overall strength of the yarn clearing device and achieve stable clamping and fixing of the yarn clearing piece 12, thereby ensuring that the yarn clearing piece 12 works stably.

[0042] like Figure 5 and Figure 7As shown, an inclined slide groove 21 is provided on the inner side of the top cover 10 at a position corresponding to each plastic coating layer 13 , and a slide pin 14 slidably connected to the slide groove 21 is provided on one side of each plastic coating layer 13 close to the bottom plate 11 , and each slide pin 14 is interference fit with the corresponding slide groove 21 .

[0043] By utilizing the sliding connection between the sliding pin 14 and the sliding groove 21, a single yarn clearing piece 12 can be replaced, which effectively reduces the use and maintenance costs and increases the service life of the device. The interference fit between the sliding pin 14 and the sliding groove 21 ensures that the yarn clearing piece 12 can be stably fixed between the top cover 10 and the bottom plate 11, thereby preventing the yarn clearing piece 12 from accidentally falling off.

[0044] Furthermore, the inclined slide groove 21 can gradually reduce the distance between the two yarn clearing blades 12 during the process of the plastic coating layer 13 being inserted into the bottom plate 11 and the yarn clearing blades 12, thereby achieving the effect of adjusting the distance.

[0045] like Figure 3 , Figure 4 and Figure 7 As shown, the limiting component includes a limiting ring 17, which is arranged at the inner center of the bottom plate 11, and the outer wall of the limiting ring 17 is fixedly connected to a limiting plate 18, and the outer edge of the limiting plate 18 is provided with a limiting head 19 of different widths at the corresponding position of each avoidance groove 29, each limiting head 19 extends into the corresponding avoidance groove 29, and the two sides of each limiting head 19 are tightly fitted with the two adjacent yarn clearing plates 12, and the limiting plate 18 is made of stamping metal material.

[0046] The spacing between the two yarn clearing pieces 12 is limited by the limit head 19, thereby ensuring that the spacing of each yarn clearing slot 28 accurately meets the size requirements, ensuring the passability of the yarn and the scraping effect on impurities. At the same time, the limit piece 18 is easy to process and easy to control the dimensional accuracy, which can effectively avoid the influence of the processing accuracy and shrinkage rate of the top cover 10 and the bottom plate 11.

[0047] In this embodiment, the operator fixes the device on the yarn feeder. The installation position and method of the yarn clearing device can refer to the patent with authorization announcement number CN113684603B. Then the operator pulls up the base composed of the top cover 10 and the bottom plate 11 to disengage the positioning pin 23 from the positioning hole 15, rotates the base composed of the top cover 10 and the bottom plate 11 to make the yarn clearing groove 28 corresponding to the current yarn diameter in the working position, and then releases the top cover 10 and the bottom plate 11 to be inserted into the corresponding positioning hole 15 again under the elastic action of the spring 25 and locked.

[0048] Then, the operator passes the yarn on the yarn feeder through the yarn hole 27 and the yarn clearing groove 28, and when the yarn feeder starts working, the yarn slides in the yarn hole 27 and the yarn clearing groove 28, and the yarn clearing piece 12 rubs against the yarn and scrapes off the impurities on the yarn, thereby cleaning the yarn. The bottom plate 11 and the top cover 10 form a base to support the high-hardness and high-wear-resistant yarn clearing piece 12, which improves the overall structural strength while increasing the hardness and wear resistance of the working position, effectively improving the cleaning effect of the yarn, avoiding yarn snagging and increasing the service life.

[0049] After long-term use, the yarn clearing piece 12 may develop cracks due to long-term exposure to high temperature and mechanical vibration caused by friction, which may easily cause the yarn clearing piece 12 to shave the yarn. The yarn feeder is shut down, the damaged yarn clearing piece 12 and its corresponding plastic coating layer 13 covering the outside of the yarn clearing piece 12 are removed, and a new and intact yarn clearing piece 12 is reinserted between the top cover 10 and the bottom plate 11, thereby replacing a single yarn clearing piece 12, effectively reducing the cost of use and maintenance, and increasing the service life of the device.

[0050] In the process of reinserting the yarn clearing piece 12 into the top cover 10 and the bottom plate 11, due to the cooperation between the inclined slide groove 21 and the slide pin 14, the replaced yarn clearing piece 12 always remains in a flat state with the yarn clearing piece 12 opposite to it, and the distance between it and the opposite yarn clearing piece 12 is gradually reduced until the replaced yarn clearing piece 12 abuts against the corresponding side of the limit head 19, and the limit head 19 is used to limit the distance between the two yarn clearing pieces 12, thereby ensuring that the distance between each yarn clearing groove 28 accurately meets the size requirements, ensuring the passability of the yarn and the scraping effect of impurities.

[0051] Since the plastic coating 13 and the slide groove 21 are interference fit, the yarn clearing piece 12 and the plastic coating 13 inserted between the top cover 10 and the bottom plate 11 can be firmly fixed between the top cover 10 and the bottom plate 11 to prevent them from accidentally falling and to prevent the sliding pin 14 from sliding randomly in the slide groove 21, causing the spacing of the yarn clearing groove 28 to change.

[0052] The metal limit piece 18 is processed by stamping during manufacturing, so that the dimensional accuracy of the limit head 19 is easy to control and the detection accuracy is convenient, and the unqualified limit pieces 18 can be recovered after the detection during the processing. The limit head 19 is not affected by the processing accuracy of the bottom plate 11 and the top cover 10, and when the accuracy of the top cover 10 and the bottom plate 11 is not high, it can still accurately position the yarn clearing piece 12, thereby reducing the processing requirements for the top cover 10 and the bottom plate 11, and effectively reducing production costs.

[0053] Embodiment 2:

[0054] like Figure 6 and Figure 7As shown, a mounting head 20 is disposed at one end of each plastic coating layer 13 away from the center of the top cover 10 and the bottom plate 11 , and a through hole is defined in each mounting head 20 .

[0055] As a further embodiment, when the damaged yarn clearing sheet 12 needs to be replaced, the operator can use a hook or other tool to pass through the through hole of the installation head 20, so that the operator can apply force to pull out the plastic coating 13. During installation, the operator can use pliers or other tools to clamp the installation head 20, so that the operator can apply force to insert the plastic coating 13, thereby facilitating the replacement of the yarn clearing sheet 12.

[0056] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0057] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0058] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A yarn clearing device for a yarn feeder, characterized in that: The invention comprises a bottom plate (11), a top cover (10) is fixedly connected to the upper side of the bottom plate (11), a plurality of avoidance grooves (29) with different groove spacings are provided on the top cover (10) and the bottom plate (11), a group of plastic coating layers (13) are slidably connected between the top cover (10) and the bottom plate (11) at both sides of each avoidance groove (29), each of the plastic coating layers (13) is coated with a yarn clearing sheet (12), a yarn clearing groove (28) is formed between two opposing yarn clearing sheets (12), and a limiting component is fixedly connected between the top cover (10) and the bottom plate (11).

2. A yarn clearing device for a yarn feeder according to claim 1, characterized in that: An inclined slide groove (21) is provided on the inner side of the top cover (10) at a position corresponding to each plastic coating layer (13); a slide pin (14) slidably connected to the slide groove (21) is provided on one side of each plastic coating layer (13) close to the bottom plate (11); and each slide pin (14) is interference fit with the corresponding slide groove (21).

3. A yarn clearing device for a yarn feeder according to claim 1, characterized in that: The limiting component comprises a limiting ring (17), the limiting ring (17) being arranged at the inner center of the bottom plate (11), the outer wall of the limiting ring (17) being fixedly connected to a limiting plate (18), and the outer edge of the limiting plate (18) being provided with a limiting head (19) of different widths at a position corresponding to each avoidance groove (29).

4. A yarn clearing device for a yarn feeder according to claim 3, characterized in that: Each of the limit heads (19) extends into a corresponding avoidance groove (29), and two sides of each of the limit heads (19) are tightly fitted with two adjacent yarn clearing plates (12).

5. A yarn clearing device for a yarn feeder according to claim 1, characterized in that: A bolt hole (16) is provided at the center of the top cover (10) and the bottom plate (11), and a plurality of positioning holes (15) are evenly distributed between each two avoidance grooves (29) on the top cover (10) and the bottom plate (11).

6. A yarn clearing device for a yarn feeder according to claim 5, characterized in that: A bolt (24) is rotatably connected in the bolt hole (16); a mounting plate (22) is rotatably connected to the bolt (24) and is rotatably connected to the bottom plate (11); a spring (25) is connected between the mounting plate (22) and the end of the bolt (24); a nut (26) is threadedly connected to the bolt (24); a positioning pin (23) is fixedly connected to one side of the mounting plate (22) close to the bottom plate (11); and a yarn hole (27) is fixedly connected to the upper end of the mounting plate (22).

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