CN216471514U

CN216471514U - Improved structure of yarn gripper applied to yarn feeding wheel

Info

Publication number: CN216471514U
Application number: CN202123026555.8U
Authority: CN
Inventors: 李俊贤
Original assignee: Xiamen Lingya Knitting Machinery Parts Co ltd
Current assignee: Xiamen Lingya Knitting Machinery Parts Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-05-10
Anticipated expiration: 2031-12-03

Abstract

An improved structure of a yarn gripper applied to a yarn feeding wheel comprises: two coaxial yarn-clamping ceramic tiles opposite to each other, wherein the yarn-clamping ceramic tiles are provided with a first central opening, and the periphery of the first central opening forms a surface which is contacted with the yarn to be braked; the two yarn-clamping ceramic sheets are provided with a first annular concave surface on the side surfaces back to each other, a first magnet is arranged in the first annular concave surface, and the two first magnets attract each other magnetically, so that the two yarn-clamping ceramic sheets elastically press each other; the fixing seat is fixed on a yarn threading rod of the yarn feeding wheel, a porcelain rod for winding yarns is formed on the end face of the inner side in a protruding mode, the diameter of the porcelain rod is smaller than that of the first central opening, and the porcelain rod can eccentrically penetrate through the first central openings of the two yarn clamping porcelain pieces and is in contact with the edge of one side, close to the yarn threading rod, of the first central opening; the limiting mechanism is abutted and contacted with the two yarn clamping ceramic tiles, and the limiting mechanism and the porcelain rod are used for providing support for the rotation of the two yarn clamping ceramic tiles; at least one second magnet, the second magnet and the first magnet are in magnetic repulsion, so that the elastic pressure of the two yarn clamping ceramic pieces is increased.

Description

Improved structure of yarn gripper applied to yarn feeding wheel

Technical Field

The utility model relates to a supply yarn device field in the weaving machine, in particular to be applied to improvement structure of the yarn clamp of sending yarn wheel.

Background

The yarn clamp is used as a component in a textile machine and is mainly used for braking a running yarn, so that a certain tension can be kept during the running process of the yarn. As shown in fig. 1, the conventional yarn gripper 10 'includes two yarn gripping pieces 102' rotatably mounted on a central support shaft 101 ', a volute spring 103' disposed on the support shaft 101 'for pressing the two yarn gripping pieces 102' against each other, and an adjusting knob 104 'screwed on the support shaft 101', wherein a yarn passes through between the two yarn gripping pieces 102 ', the yarn is bent into a circular surface by the support shaft 101' to form a braking effect, and the elastic force of the volute spring 103 'is changed by adjusting the knob 104', thereby achieving the effect of adjusting the strength of the braking effect. When the yarn feeding wheel works normally, the yarn passes through the first yarn inlet porcelain eye S1 of the yarn threading rod 2 ', the yarn clamping piece 102 ', the yarn filtering piece 3 ', the yarn breaking rod 4 ' and the second yarn inlet porcelain eye S2 on the bracket 1 ', is wound on the yarn wheel 5 ', and passes through the yarn outlet porcelain eye S3 on the bracket 1 ', and then moves to the yarn using station. However, the above yarn gripper has the following defects: after the fabric is used for a period of time, the elastic coefficient (namely stiffness coefficient) of the spring 103 'changes, so that when the shortened length of the spring 103' is fixed, the elastic force of the spring 103 'changes, when the elastic force of the spring 103' is small, the yarn can drive the yarn breaking rod 4 'to sink, an alarm is caused to report by mistake, when the elastic force of the spring 103' is large, the yarn is easy to break, yarn ends, flocks and the like are generated, and the quality of the fabric is influenced; secondly, when the yarn feeding wheel works, the adjusting knob 104 'shakes, so that the elastic force of the spring 103' changes, and the problems mentioned above occur.

In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art and have developed the present invention.

Disclosure of Invention

An object of the utility model is to provide a be applied to improvement structure of yarn gripper of sending yarn wheel, it replaces traditional yarn gripper, when shutting down, makes disconnected yarn pole can not sink and lead to the alarm wrong report to and be difficult to cause the yarn fracture to produce end of a thread, batting etc..

In order to achieve the above object, an improved structure of a yarn gripper applied to a yarn feeding wheel comprises:

two yarn-clamping ceramic tiles which are coaxial relative to each other and are provided with a first central opening, and the periphery of each yarn-clamping ceramic tile is provided with a surface which is in contact with the yarn to be braked; the two yarn-clamping ceramic sheets are provided with a first annular concave surface on the side surfaces back to each other, a first magnet is arranged in the first annular concave surface, and the two first magnets attract each other magnetically, so that the two yarn-clamping ceramic sheets elastically press each other;

the fixing seat is fixed on a yarn threading rod of the yarn feeding wheel, a porcelain rod for winding yarns is formed on the end face of the inner side of the fixing seat in a protruding mode, the diameter of the porcelain rod is smaller than that of a first central opening, and the porcelain rod can eccentrically penetrate through the first central openings of the two yarn clamping ceramic sheets and is in contact with the edge of one side, close to the yarn threading rod, of the first central opening;

the limiting mechanism is abutted and contacted with the two yarn clamping ceramic sheets, and the two yarn clamping ceramic sheets are relatively coaxial through the limiting mechanism and the porcelain rod and provide support for the rotation of the two yarn clamping ceramic sheets;

the second magnet is arranged on the end face of the inner side of the fixed seat, and the second magnet and the first magnet repel each other in magnetic property, so that the elastic pressure of the two yarn clamping ceramic pieces is increased.

By adopting the design, firstly, the two yarn clamping ceramic pieces attract each other through the first magnet, so that the advancing part of the yarn can achieve uniform yarn tension, the yarn tension is not subjected to any fluctuation due to the working vibration of the yarn feeding wheel, and the yarn is fed at a substantially uniform speed; the two yarn clamping ceramic pieces are easy to detach, so that fluff and lubricating oil carried on the yarn are cleaned by separating the two yarn clamping ceramic pieces, and the effect of easy cleaning is achieved; secondly, by additionally arranging a second magnet, the second magnet and the first magnet are magnetically repulsive, so that the elastic pressure between the two yarn clamping ceramic sheets is increased, the yarn feeding wheel is enabled to basically keep the same-direction running between the two yarn clamping ceramic sheets when in work, and the elastic pressure between the two yarn clamping ceramic sheets is basically kept unchanged, so that the yarn is fed at a basically uniform speed; thirdly, the porcelain rod is positioned at the eccentric position of the two yarn clamping ceramic chips, and the limiting mechanism is abutted against the outer peripheral surfaces of the two yarn clamping ceramic chips, so that the two yarn clamping ceramic chips rotate along the advancing direction of the yarn when the yarn feeding wheel works, and the problem of yarn falling off is avoided; fourthly, because the yarn clamping ceramic tiles and the ceramic rods are made of ceramic materials, the quality deterioration of the yarn which runs through the yarn clamping ceramic tiles and the ceramic rods caused by the damage of the braking surface is greatly delayed.

Drawings

The detailed description, given as a non-limiting example, better explains what the invention includes and can be implemented, and moreover, refers to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of a conventional yarn gripper;

FIG. 2 is an exploded view of the improved structure of the yarn gripper of the present invention;

FIG. 3 is a front view of the improved structure of the yarn gripper of the present invention;

FIG. 4 is a longitudinal sectional view of the improved structure of the yarn gripper of the present invention;

FIG. 5 is a side view of the improved structure of the yarn gripper of the present invention;

fig. 6 is a schematic structural view of the fixing base of the present invention.

Description of the figures

A yarn-clamping ceramic tile 1, a first central opening 11, a surface 12, a first annular concave surface 13, an annular flange 131 and a second arc guide surface 1311;

a first magnet 2, a third central opening 21;

the fixing seat 3, the positioning block 31, the positioning hole 311, the opening 3111, the abdicating channel 312, the second annular concave surface 32, the inserting part 33, the inserting block 331, the inserting column 332, the inserting hole 333, the through groove 334, the connecting part 34, and the accommodating space 200;

a porcelain rod 4; a limiting mechanism 5; a second magnet 6, a fourth central opening 61;

the protective cover 7, the second central opening 71, the concave part 72, the circumference 73, the first arc guide surface 731;

bolts 8, nuts 9; a thread-threading rod 100, a plug groove 101 and a through hole 102.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

In the claims and specification, unless otherwise specified, the terms "first," "second," and the like are used for distinguishing between different objects and not necessarily for describing a particular order.

Referring to fig. 2 to 6, an improved structure of a yarn gripper applied to a yarn feeding wheel comprises two fixing bases 3 and two yarn gripping tiles 1, wherein the two fixing bases 3 are oppositely arranged and fixed on a yarn threading rod 100 of the yarn feeding wheel, specifically, each fixing base 3 is formed by integrally forming an insertion part 33 and a connecting part 34, the insertion part 33 of each fixing base 3 is provided with an insertion block 331 at one side relative to the yarn threading rod 100, the yarn threading rod 100 is correspondingly provided with two insertion grooves 101 matched with the insertion blocks 331, and the two insertion blocks 331 are respectively inserted into the corresponding insertion grooves 101 without excessive gaps or tight fit therebetween; meanwhile, the opposite end faces of the two fixing seats 3 are provided with mortise and tenon type structures, if the opposite end face of the inserting part 33 of one of the fixing seats 3 protrudes to form a plurality of inserting columns 332, the opposite end face of the inserting part 33 of the other fixing seat 3 is correspondingly provided with inserting holes 333 for matching the inserting columns 332, and no excessive gap exists between the inserting holes and the inserting columns, so that the two fixing seats 3 can be spliced with each other in a detachable mode, and a fastening matching mode is formed. Meanwhile, after the two fixing seats 3 are spliced, a through groove 334 for placing a nut 9 is formed between the end surface of one side of the yarn threading rod 100 and the two insertion blocks 331, and the nut 9 is a quadrangular nut or a hexagonal nut; the yarn threading rod 100 is correspondingly provided with a through hole 102, and a bolt 8 penetrates through the through hole 102 to be in locking connection with a nut 9, so that the two fixed seats 3 are tightly matched with the yarn threading rod 100. In addition, when the two fixing bases 3 are spliced together, an accommodating space 200 is formed between the connecting portions 34 of the two fixing bases 3. The connecting portion 34 of the two fixing bases 3 is disc-shaped, the inner side end face of the connecting portion 34 of the fixing base 3 protrudes to form a ceramic rod 4 for winding yarns, the ceramic rod 4 is integrally formed on any one of the fixing bases 3, or, for the present embodiment, the ceramic rod 4 and the two fixing bases 3 adopt a split design, specifically, a positioning block 31 is arranged on the inner side end face of the connecting portion 34 of the two fixing bases 3, a positioning hole 311 for inserting the ceramic rod 4 is eccentrically arranged on the positioning block 31, preferably, an opening 3111 is arranged at the upper end of the positioning hole 311, the width W of the opening 3111 is slightly smaller than the diameter D of the ceramic rod 4, so that the ceramic rod 4 is not easily separated from the fixing base 3 when the yarn feeding wheel works and vibrates, and the ceramic rod 4 can be conveniently detached from the fixing base 3 according to actual needs; meanwhile, an abdicating channel 312 is formed on the positioning block 31 above the opening 3111, so that the porcelain rod 4 can be inserted into the positioning hole 311 through the abdicating channel 312.

Two yarn-clamping ceramic tiles 1, the two yarn-clamping ceramic tiles 1 are arranged in the accommodating space 200 of the fixed seat 3 and are coaxial relative to each other. The two yarn-clamping tiles 1 are disc-shaped and have a first central opening 11, and a ring surface of one yarn-clamping tile 1 is overlapped on the other yarn-clamping tile 1 around the first central opening, wherein the ring surface is a surface 12 contacted by the yarn to be braked. The two thread-clamping tiles 1 are on the sides facing away from each other a first annular concave 13, in which a first magnet 2 is placed, each of the first magnets 2 being a ring-shaped permanent magnet having a third central opening 21. The first magnet 2 is concentric with the yarn clamping ceramic pieces 1 and is polarized in the axial direction, and the two first magnets 2 are attracted magnetically, so that the two yarn clamping ceramic pieces 1 are pressed elastically, the yarn is subjected to slightly limited tension when running between the two yarn clamping ceramic pieces 1, and the yarn braking effect is achieved. The two yarn-clamping ceramic tiles 1 are buckled on the porcelain rod 4, the porcelain rod 4 passes through the first central opening 11, wherein the diameter D of the porcelain rod 4 is smaller than that of the first central opening 11, and the porcelain rod 4 can pass through the first central openings 11 of the two yarn-clamping ceramic tiles 1 and is contacted with the edge of one side, close to the yarn-threading rod 100, of the first central opening 11.

A limiting mechanism 5, the limiting mechanism 5 is a limiting shaft formed by the protrusion of the fixing base 3 at one side facing the yarn clamping ceramic sheet, the limiting shaft is located at one side of the porcelain rod 4 close to the yarn threading rod 100 and is located below the porcelain rod 4, the limiting shaft is abutted and contacted with the outer peripheral surface of the two yarn clamping ceramic sheets 1, meanwhile, the second supporting point of the two yarn clamping ceramic sheets 1 is formed by the porcelain rod 4, the porcelain rod 4 is contacted with the edge of the first central opening 11 of the two yarn clamping ceramic sheets 1, thereby providing the actual rotation support or fixation of the two yarn clamping ceramic sheets 1, and further making the yarn advance at a basically uniform speed.

Two second magnets 6, the second magnets 6 being ring-shaped permanent magnets and being axially polarized, the second magnets 6 having a fourth central opening 61. The inner side end surfaces of the connecting portions 34 of the two fixing bases 3 are second annular concave surfaces 32, the two second magnets 6 are respectively placed in the corresponding second annular concave surfaces 32, the two second magnets 6 respectively magnetically repel the corresponding first magnets 2, so that the elastic pressure of the two yarn clamping porcelain pieces 1 is increased, and in addition, the two yarn clamping porcelain pieces 1 are approximately in the center between the two second magnets 6.

Two protecting covers 7 having a second central opening 71 opposite to the first central opening 11, as shown in fig. 4, the two protecting covers 7 respectively protrude on one side end surface facing the corresponding yarn clamping tile 1 to form a circumference 73, the circumference 73 has a fifth central opening 732 communicated with the first central opening 11, and the circumference 73 has a concave 72. The first annular concave surface 13 of the two yarn-clamping tiles 1 protrudes at the position corresponding to the concave part 72 to form an annular flange 131, and the two protecting covers 7 are correspondingly buckled on the first annular concave surface 13 of the two yarn-clamping tiles 1 through the matching between the annular flange 131 and the corresponding concave part 72. Preferably, the circumference 73 has a first circular arc guiding surface 731 at the end facing the trapping tiles 1 and the annular flange 131 has a second circular arc guiding surface 1311, the arrangement being such that the annular flange 131 of the trapping tiles 1 can slide into the recess 72 of the protective cover 7 via the first circular arc guiding surface 731.

By adopting the design, firstly, the two yarn clamping ceramic tiles 1 are mutually attracted by the first magnet 2, so that the advancing part of the yarn can achieve uniform yarn tension, and the yarn tension is not subjected to any fluctuation due to the working vibration of the yarn feeding wheel, so that the yarn can basically advance at uniform speed; in addition, the two yarn clamping ceramic pieces 1 are easy to detach, so that fluff and lubricating oil carried on the yarn are cleaned by separating the two yarn clamping ceramic pieces 1, and the effect of easy cleaning is achieved; secondly, by additionally arranging a second magnet 6, the second magnet 6 and the first magnet 2 repel each other magnetically, so that the elastic pressure between the two yarn clamping ceramic tiles 1 is increased, the yarn feeding wheel is enabled to basically keep the same-direction running between the two yarn clamping ceramic tiles 1 when in work, and the elastic pressure between the two yarn clamping ceramic tiles 1 is basically kept unchanged, so that the advancing part of the yarn achieves uniform yarn tension; thirdly, the porcelain rod 4 is positioned at the eccentric position of the two yarn clamping ceramic tiles 1, and the limiting mechanism 5 is abutted against the outer peripheral surfaces of the two yarn clamping ceramic tiles 1, so that when the yarn feeding wheel works, the two yarn clamping ceramic tiles 1 rotate along the advancing direction of the yarn, and the problem of yarn separation is avoided, and in the process of stopping the machine, the phenomenon that the broken yarn rod droops due to the fact that the yarn is brought downwards by the two yarn clamping ceramic tiles 1 due to inertia is avoided, and an alarm is mistakenly reported; fourthly, since the yarn-gripping tiles 1 and the ceramic rods 4 are made of ceramic materials, the deterioration of the quality of the yarn travelling therethrough caused by the damage of the braking surface is greatly delayed.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An improved structure of a yarn gripper applied to a yarn feeding wheel is characterized by comprising:

two yarn-gripping tiles (1) coaxial with each other, each of the two yarn-gripping tiles (1) having a first central opening (11) around which a face (12) is formed in contact with the yarn to be braked; the two yarn-clamping ceramic tiles (1) are provided with first annular concave surfaces (13) on the sides which are opposite to each other, a first magnet (2) is arranged in the first annular concave surfaces, and the two first magnets (2) are attracted magnetically, so that the two yarn-clamping ceramic tiles (1) are elastically pressed;

the yarn feeding device comprises at least one fixed seat (3), wherein the fixed seat (3) is fixed on a yarn threading rod (100) of a yarn feeding wheel, a porcelain rod (4) for winding yarns is formed on the end face of the inner side of the fixed seat in a protruding mode, the diameter of the porcelain rod (4) is smaller than that of a first central opening hole (11), and the porcelain rod (4) can eccentrically penetrate through the first central opening hole (11) of two yarn clamping ceramic tiles (1) and is in contact with the edge of one side, close to the yarn threading rod (100), of the first central opening hole (11);

the limiting mechanism (5) is abutted and contacted with the two yarn clamping ceramic tiles (1), and the two yarn clamping ceramic tiles (1) are coaxial relative to each other through the limiting mechanism (5) and the porcelain rod (4) and provide support for the rotation of the two yarn clamping ceramic tiles (1);

the second magnet (6) is arranged on the end face of the inner side of the fixed seat (3), and the second magnet (6) and the first magnet (2) repel each other in magnetic property, so that the elastic pressure of the two yarn clamping ceramic pieces (1) is increased.

2. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 1, is characterized in that: the limiting mechanism (5) is a limiting shaft which is formed by protruding one end of the fixing seat (3) facing the yarn clamping ceramic chip (1), the limiting shaft is positioned on one side of the porcelain rod (4) close to the yarn penetrating rod (100) and is positioned below the porcelain rod (4), and the limiting shaft is abutted and contacted with the outer peripheral surface of the two yarn clamping ceramic chips (1).

3. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 1, is characterized in that: a positioning block (31) is formed on the inner side end face of the fixed seat (3) in a protruding mode at a position corresponding to the porcelain rod (4), a positioning hole (311) for the porcelain rod (4) to be inserted is formed in the positioning block (31), and the porcelain rod (4) is fixedly arranged on the inner side end face of the fixed seat (3) in a split mode.

4. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 3, characterized in that: the upper end of locating hole (311) has an opening (3111), and width (W) of this opening (3111) slightly is less than diameter (D) of porcelain rod (4), form a channel of stepping down (312) on locating piece (31) lieing in the top of opening (3111).

5. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 1, is characterized in that: the yarn-clamping ceramic tile fixing device comprises two fixing seats (3), wherein the two fixing seats (3) are respectively arranged on two sides of two yarn-clamping ceramic tiles (1), and the two fixing seats (3) are mutually spliced to form a fastening matching mode.

6. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 5, characterized in that: comprises two second magnets (6); the end surfaces of the inner sides of the two fixed seats (3) are second annular concave surfaces (32), the two second magnets (6) are respectively placed in the corresponding second annular concave surfaces (32), the two second magnets (6) respectively repel the magnetism of the corresponding first magnets (2), and the elastic pressure of the two yarn clamping ceramic tiles (1) is further increased.

7. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 1, is characterized in that: the two yarn-clamping ceramic tiles (1) are disc-shaped, the two yarn-clamping ceramic tiles (1) are provided with a first central opening (11), the periphery of the two yarn-clamping ceramic tiles is a ring surface of one yarn-clamping ceramic tile (1) which is overlapped on the other yarn-clamping ceramic tile (1), and the ring surface is a surface (12) which is contacted with the yarn to be braked.

8. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 6, is characterized in that: the first magnet (2) and the second magnet (6) are annular and are axially polarized; the first magnet (2) has a third central opening (21) and the second magnet (6) has a fourth central opening (61).

9. An improved structure of a yarn gripper applied to a yarn feeding wheel as claimed in any one of claims 1 to 8, characterized in that: the yarn-clamping ceramic tile comprises a first central opening (11) and a second central opening (71), and further comprises two protecting covers (7) which are provided with second central openings (71) opposite to the first central opening (11), wherein the two protecting covers (7) are correspondingly buckled on first annular concave surfaces (13) of the two yarn-clamping ceramic tiles (1).

10. The improved structure of the yarn gripper applied to the yarn feeding wheel as claimed in claim 9, characterized in that: the first annular concave surfaces (13) of the two yarn clamping ceramic tiles (1) protrude to form annular flanges (131), concave parts (72) are arranged at the positions, corresponding to the annular flanges (131), of the two protective covers (7), and the two protective covers (7) are correspondingly buckled on the first annular concave surfaces (13) of the two yarn clamping ceramic tiles (1) through the matching of the annular flanges (131) and the corresponding concave parts (72).