Yarn feeding tensioner of yarn feeder

Abstract

The utility model relates to the technical field of textile machinery, in particular to a yarn feeding tensioner of a yarn feeder. Comprising a connecting base, the connecting base is provided with a yarn inlet porcelain eye and a yarn outlet porcelain eye, and a porcelain column frame is installed on the connecting base and formed by bending a metal wire; the porcelain column is transversely installed on the porcelain column frame and located on the outer side of the connecting base, the porcelain column is arranged between the yarn inlet porcelain eye and the yarn outlet porcelain eye, the porcelain column is provided with a yarn guide groove penetrating through the porcelain column, the yarn guide groove is provided with a yarn guide face and a pair of yarn clamping pieces, and the yarn clamping pieces are provided with sleeve holes matched with the porcelain column in radial size. The yarn clamping pieces are rotationally installed on the porcelain column through the sleeve holes, the pair of yarn clamping pieces are attached to each other by arranging magnetic attraction parts on the opposite sides of the yarn clamping pieces, and the yarn guide faces are arranged at the rotating centers of the yarn clamping pieces in an offset mode. And moreover, the fabric is easy to clean and convenient to use for a long time.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically to a yarn feeder tensioner. Background Technology

[0002] An active yarn feeder is a device in textile machinery used to precisely control the amount of yarn fed. Its core feature is that it achieves quantitative and uniform yarn feeding through an active drive system, making it suitable for high-precision weaving. The yarn tensioner is an indispensable component; it transforms loose, tensionless yarn into yarn with uniform tension, a necessary condition for high-precision weaving.

[0003] Existing yarn tensioners have complex structures, and after long-term operation, yarn fibers and debris tend to accumulate and are difficult to remove. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a yarn feeder tensioner with a ceramic column frame that is not prone to accumulating yarn fibers and other debris, and is easy to clean and convenient for long-term use.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A yarn feeder tensioner, comprising:

[0007] A connecting seat is provided with a yarn inlet ceramic eye and a yarn outlet ceramic eye. A ceramic column frame is installed on the connecting seat. The ceramic column frame is formed by bending metal wire.

[0008] A ceramic column is horizontally mounted on a ceramic column frame and located outside the connecting seat. The ceramic column is positioned between the yarn inlet and yarn outlet ceramic eyelets. The ceramic column has a yarn guide groove that runs through it, and the yarn guide groove has a yarn guide surface.

[0009] A pair of clamping strips, each with a sleeve hole adapted to the radial dimension of the ceramic column, are rotatably mounted on the ceramic column through the sleeve hole. The pair of clamping strips are brought into contact with each other by magnetic attraction components on opposite sides, and the position of the guiding surface is offset at the rotation center of the clamping strips.

[0010] Furthermore, the yarn feeder tensioner of this application also includes a yarn clearing plate, which has a yarn clearing groove adapted to the radial dimension of the yarn. The yarn clearing plate is disposed between the yarn inlet ceramic eye and the ceramic column or between the yarn outlet ceramic eye and the ceramic column.

[0011] The cleaning mesh can be installed on the upper and lower sides of the ceramic column, offering high installation flexibility.

[0012] Furthermore, in this application, a yarn feeder tensioner is provided with a mounting frame on the connecting seat. The clearing plate is mounted on the mounting frame and has several clearing grooves. Each clearing groove corresponds to a different yarn radial dimension. The clearing plate is adjustablely mounted on the mounting frame so that each clearing groove can be moved and adjusted to a preset clearing position.

[0013] Furthermore, in this application, a yarn feeder tensioner includes a clearing plate with first positioning parts corresponding to a plurality of clearing grooves. Each clearing groove has a second positioning part. The plurality of clearing grooves and the first positioning parts are arranged in a circumferential array around the second positioning parts. A mounting frame has a third positioning part and a fourth positioning part. The fourth positioning part is connected to the second positioning part. When the clearing plate is adjusted so that one of the first positioning parts is connected to the third positioning part, the clearing groove corresponding to that first positioning part is in a preset clearing position. As a preferred embodiment of this application, by rotating the clearing plate around the fourth positioning part, the third positioning part corresponds to different first positioning parts, thereby adjusting and switching the corresponding clearing groove to the clearing position for different yarn specifications. Furthermore, in this application, the ceramic column frame of the yarn feeder tensioner includes:

[0014] Mounting rod, the ceramic column is fixed on the mounting rod;

[0015] The limiting extension extends from both ends of the mounting rod and is bent into shape. The limiting extension is limited to both ends of the ceramic column. One end of the ceramic column on one side is provided with a notch. Moving the clamping piece to the sleeve hole and entering the notch can allow the clamping piece to pass through the limiting extension from the ceramic column, thereby removing the clamping piece.

[0016] The notch is located axially outside the yarn guide groove, so that the yarn clamp cannot enter the notch during use due to the yarn's limitation. As a preferred embodiment of this application, similarly, the yarn clamp can only be inserted into the ceramic column from the notch side of the ceramic column holder. During maintenance, when removing yarn lint, air is blown from the notch side, and the limitation of the extension portion prevents the yarn clamp from being blown out of the ceramic column.

[0017] Furthermore, in a yarn feeder tensioner of this application, the ceramic column frame further includes a mounting part, which extends from the end of the limiting extension part away from the mounting rod.

[0018] The connector is provided with a slot that is compatible with the mounting part, and the mounting part is inserted into the slot;

[0019] It also includes a limit stop, which is movably mounted on the connector and is used to tightly limit the mounting part within the slot. The limit stop can be switched to disable the limiting of the mounting part.

[0020] Furthermore, in a yarn feeder tensioner of this application, the limiting baffle is slidably mounted on the connecting seat. The limiting baffle has a through groove with closed edges. The through groove includes a through groove and a receiving groove communicating with the through groove. The through groove is adapted to the shape of the slot. The mounting part on one side is inserted into the through groove. When the limiting baffle moves to the position where the through groove corresponds to the slot, the limiting baffle fails to limit the mounting part. When the limiting baffle moves to the position where it is stuck on the mounting part in the receiving groove, the mounting part is limited to the slot.

[0021] Furthermore, in a yarn feeder tensioner of this application, the limiting baffle has a limiting protrusion, and the connecting seat has a pair of slots adapted to the limiting protrusion. The limiting protrusion is elastically placed in the slots, and the limiting baffle moves so that the limiting protrusions respectively enter the pair of slots to switch the limiting state of the limiting baffle on the mounting part. As a preferred embodiment of this application, based on the above structure, quick assembly and disassembly of the ceramic column frame and the connecting seat can be achieved.

[0022] Furthermore, in this application, a yarn feeder tensioner includes a connecting base comprising a main body and a yarn guide arm that are separately connected. A slot is disposed on the main body, and a yarn inlet ceramic eye is installed on the yarn guide arm at the end away from the main body. A limiting baffle is slidably disposed between the main body and the yarn guide arm. The main body is provided with a limiting edge and a limiting protrusion, which are respectively located on both sides perpendicular to the sliding direction of the limiting baffle. As a preferred embodiment of this application, based on the above structure, the limiting baffle is inserted between the main body and the yarn guide arm, and the limiting edge and the limiting protrusion form a sliding groove for the limiting baffle.

[0023] Furthermore, in one yarn feeder tensioner of this application, the yarn guide arm is a plate with a positioning hole corresponding to a limiting protrusion. The yarn guide arm is connected to the main body by screws, and the limiting protrusion is housed in the positioning hole. As a preferred embodiment of this application, based on the above structure, it has the advantages of easy assembly and disassembly and simple structure.

[0024] Furthermore, in one yarn feeder tensioner of this application, the ceramic column is provided with an inlet groove extending inclinedly in the axial direction of the ceramic column. One end of the inlet groove is connected to the yarn guide groove, and the other end extends beyond the side wall of the ceramic column. As a preferred embodiment of this application, the conventional inlet groove extending perpendicular to the axial direction of the ceramic column causes the yarn clamping piece to get stuck in the inlet groove. In this application, the inlet groove is inclined, making it difficult for the yarn clamping piece to enter the inlet groove.

[0025] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0026] This utility model provides a yarn feeder tensioner. Based on the above structure, the principle of the yarn feeder tensioner is as follows: the yarn enters through the inlet ceramic eye and exits through the outlet ceramic eye, passing through the guide groove in the middle and conforming to the guide surface. Guided by the guide surface, a pair of clamping plates clamp the yarn on both sides. Because the guide surface is offset from the rotation center of the clamping plates, it can drive the clamping plates to rotate on the ceramic column during yarn feeding, preventing the friction between the yarn and the clamping plates from being too concentrated. The function of the clamping plates is to provide tension for the yarn. In this application, because the ceramic column frame is formed by bending metal wire and the ceramic column is located outside the connecting seat, it is not easy for yarn fibers and other debris to accumulate on the surface. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a yarn feeder tensioner in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the disassembled ceramic column frame of the yarn feeder tensioner in an embodiment of this application;

[0029] Figure 3 for Figure 2 An exploded diagram showing the remaining components after the ceramic column frame was removed.

[0030] Figure 4 This is a schematic diagram of the mounting frame and the clearing sheet in the embodiments of this application;

[0031] Figure 5 This is a schematic diagram of the yarn feeder tensioner structure in another embodiment of this application;

[0032] Figure 6 This is a front view of the assembled yarn clip and ceramic column frame in the embodiments of this application;

[0033] Figure 7 This is a bottom view of the assembled yarn clip and ceramic column frame in the embodiments of this application;

[0034] Figure 8 This is a schematic diagram showing the separation of the yarn clamping piece and the ceramic column frame in the embodiments of this application.

[0035] In the diagram: 1-Connecting seat; 11-Inlet ceramic eye; 12-Outlet ceramic eye; 13-Mounting frame; 131-Third positioning part; 132-Fourth positioning part; 14-Slot; 15-Card slot; 16-Main body; 161-Limiting edge; 162-Limiting protrusion; 17-Yarn guide arm; 170-Positioning hole; 2-Ceramic column frame; 21-Mounting rod; 22-Limiting extension part; 23-Mounting part; 3-Ceramic column; 31-Yarn guide groove; 310-Yarn guide surface; 32-Notch; 33-Inlet groove; 4-Yarn clamping piece; 40-Sleeve hole; 5-Yarn clearing piece; 51-Yarn clearing groove; 52-First positioning part; 53-Second positioning part; 6-Limiting baffle; 60-Through groove; 61-Through groove; 62-Receiving groove; 63-Limiting card protrusion. Detailed Implementation

[0036] Example

[0037] Combination Figures 1 to 3 The yarn feeder tensioner shown includes:

[0038] Connecting seat 1, with yarn inlet ceramic eye 11 and yarn outlet ceramic eye 12 on the connecting seat 1, and ceramic column frame 2 installed on the connecting seat 1, which is formed by bending metal wire.

[0039] The ceramic column 3 is horizontally mounted on the ceramic column frame 2 and located outside the connecting seat 1. The ceramic column 3 is positioned between the yarn inlet ceramic eye 11 and the yarn outlet ceramic eye 12. The ceramic column 3 is provided with a yarn guide groove 31 that passes through the ceramic column 3, and the yarn guide groove 31 is provided with a yarn guide surface 310.

[0040] A pair of yarn clamping pieces 4 are provided with sleeve holes 40 that are adapted to the radial dimensions of the ceramic column 3. The yarn clamping pieces 4 are rotatably mounted on the ceramic column 3 through the sleeve holes 40. The pair of yarn clamping pieces 4 are attached to each other by magnetic attraction components set on their opposite sides. The position of the yarn guide surface 310 is offset at the rotation center of the yarn clamping pieces 4.

[0041] Based on the above structure, the principle of a yarn feeder tensioner is as follows: the yarn enters through the inlet ceramic eye 11 and exits through the outlet ceramic eye 12, passing through the guide groove 31 and adhering to the guide surface 310. Guided by the guide surface 310, a pair of clamping pieces 4 clamp the yarn on both sides. Because the guide surface 310 is positioned offset at the rotation center of the clamping pieces 4, it can drive the clamping pieces 4 to rotate on the ceramic column 3 during yarn feeding, preventing excessive concentration of friction between the yarn and the clamping pieces 4. The function of the clamping pieces 4 is to provide tension to the yarn. In this application, because the ceramic column frame 2 is formed by bending metal wire and the ceramic column 3 is located outside the connecting seat 1, it is not easy for yarn fibers or other debris to accumulate on the surface.

[0042] In this embodiment, a yarn clearing plate 5 is also included. The yarn clearing plate 5 is provided with a yarn clearing groove 51 adapted to the radial dimension of the yarn. In one embodiment, the yarn clearing plate 5 is disposed between the yarn exit ceramic eye 12 and the ceramic pillar 3. Figure 5 As shown, in another embodiment, the yarn clearing plate 5 is disposed between the yarn inlet ceramic eye 11 and the ceramic pillar 3. In this embodiment, each yarn clearing groove 51 on the yarn clearing plate 5 has a size mark corresponding to the yarn size on one side. Furthermore, the yarn clearing plate 5 can be installed on the upper and lower sides of the ceramic pillar 3, offering high installation flexibility.

[0043] In this embodiment, the connecting seat 1 is provided with a mounting frame 13, the yarn clearing plate 5 is mounted on the mounting frame 13, the yarn clearing plate 5 has several yarn clearing grooves 51, each yarn clearing groove 51 corresponds to a different yarn radial dimension, and the yarn clearing plate 5 can be adjusted and mounted on the mounting frame 13 so that each yarn clearing groove 51 can be moved and adjusted to a preset yarn clearing position.

[0044] Combination Figure 3 and Figure 4 As shown, in this embodiment, the yarn clearing plate 5 is provided with a first positioning part 52 corresponding to a plurality of yarn clearing grooves 51. A second positioning part 53 is also provided on each yarn clearing groove 51. The plurality of yarn clearing grooves 51 and the first positioning parts 52 are arranged in a circumferential array around the second positioning parts 53. The mounting frame 13 is provided with a third positioning part 131 and a fourth positioning part 132. The fourth positioning part 132 is connected to the second positioning part 53. When the yarn clearing plate 5 is adjusted so that one of the first positioning parts 52 is connected to the third positioning part 131, the yarn clearing groove 51 corresponding to that first positioning part 52 is in a preset yarn clearing position. By rotating the yarn clearing plate 5 around the fourth positioning part 132, the third positioning part 131 corresponds to different first positioning parts 52, thereby adjusting and switching the corresponding yarn clearing groove 51 to the yarn clearing position for different yarn specifications. In this embodiment, the second positioning part 53 and the fourth positioning part 132 are through holes, and the rotational connection between the yarn clearing plate 5 and the mounting frame 13 is achieved by rivets passing through the second positioning part 53 and the fourth positioning part 132. The third positioning part 131 is a protrusion, and the first positioning part 52 is a hole for receiving the third positioning part 131.

[0045] Combination Figures 6 to 8 As shown, in this embodiment, the ceramic column frame 2 includes:

[0046] Mounting rod 21, ceramic column 3 is fixed on mounting rod 21;

[0047] The limiting extension 22 extends from both ends of the mounting rod 21 and is bent into shape. The limiting extension 22 is limited to both ends of the ceramic column 3. One end of the ceramic column 3 on one side is provided with a notch 32. Moving the clamping piece 4 to the sleeve hole 40 and entering the notch 32 can allow the clamping piece 4 to pass through the limiting extension 22 from the ceramic column 3, so as to remove the clamping piece 4.

[0048] The notch 32 is located on the outer side of the yarn guide groove 31 in the axial direction, so that the yarn clamp 4 cannot enter the notch 32 during use due to the limitation of the yarn.

[0049] Similarly, the clamping piece 4 can only be inserted into the ceramic column 3 from the ceramic column holder 2 from the side of the notch 32. During maintenance, when removing yarn fibers, air is blown from the side of the notch 32, and the limiting extension 22 can prevent the clamping piece 4 from being blown out of the ceramic column 3.

[0050] In this embodiment, the ceramic column frame 2 also includes a mounting part 23, which extends from the end of the limiting extension part 22 away from the mounting rod 21;

[0051] The connector 1 is provided with a slot 14 that is compatible with the mounting part 23, and the mounting part 23 is inserted into the slot 14;

[0052] It also includes a limiting baffle 6, which is movably mounted on the connecting seat 1. The limiting baffle 6 is used to tightly limit the mounting part 23 within the slot 14. The limiting baffle 6 can be movably switched to disable the limiting of the mounting part 23.

[0053] In this embodiment, the limiting baffle 6 is slidably mounted on the connecting seat 1. The limiting baffle 6 is provided with a through groove 60 with closed edges. The through groove 60 includes a through groove 61 and a receiving groove 62 communicating with the through groove 61. The through groove 61 is adapted to the shape of the slot 14. The mounting part 23 on one side is inserted into the through groove 60. When the limiting baffle 6 moves to the point where the through groove 61 corresponds to the slot 14, the limiting baffle 6 fails to limit the mounting part 23. When the limiting baffle 6 moves to the point where the receiving groove 62 is stuck on the mounting part 23, the mounting part 23 is limited to the slot 14.

[0054] In this embodiment, the limiting baffle 6 is provided with a limiting protrusion 63, and the connecting seat 1 is provided with a pair of slots 15 that are adapted to the limiting protrusion 63. The limiting protrusion 63 is elastically placed in the slots 15, and the limiting baffle 6 moves so that the limiting protrusion 63 enters the pair of slots 15 respectively to switch the limiting state of the limiting baffle 6 on the mounting part 23. Based on the above structure, the ceramic column frame 2 and the connecting seat 1 can be quickly assembled and disassembled.

[0055] In this embodiment, the connecting seat 1 includes a main seat body 16 and a yarn guide arm 17 that are separately connected. A slot 14 is disposed on the main seat body 16. A yarn inlet ceramic eye 11 is installed on the yarn guide arm 17 at the end away from the main seat body 16. A limiting baffle 6 is slidably disposed between the main seat body 16 and the yarn guide arm 17. The main seat body 16 is provided with a limiting edge 161 and a limiting protrusion 162, which are respectively limited on both sides perpendicular to the sliding direction of the limiting baffle 6. Based on the above structure, the limiting baffle 6 is inserted between the main seat body 16 and the yarn guide arm 17, and the limiting edge 161 and the limiting protrusion 162 form a sliding groove for the limiting baffle 6 to slide.

[0056] In this embodiment, the yarn guide arm 17 is a plate, and the yarn guide arm 17 is provided with a positioning hole 170 that corresponds to the limiting protrusion 162. The yarn guide arm 17 is connected to the main body 16 by screws, and the limiting protrusion 162 is housed in the positioning hole 170. Based on the above structure, it has the advantages of easy disassembly and assembly and simple structure.

[0057] In this embodiment, the ceramic column 3 is provided with an inlet groove 33 that extends inclined to the axial direction of the ceramic column 3. One end of the inlet groove 33 is connected to the yarn guide groove 31, and the other end extends beyond the side wall of the ceramic column 3.

[0058] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of this utility model without creative effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A yarn feeder tensioner, characterized in that: include: Connecting seat (1), the connecting seat (1) is provided with yarn inlet ceramic eye (11) and yarn outlet ceramic eye (12), the connecting seat (1) is equipped with ceramic column frame (2), the ceramic column frame (2) is formed by bending metal wire; The ceramic column (3) is horizontally installed on the ceramic column frame (2) and located outside the connecting seat (1). The ceramic column (3) is set between the yarn inlet ceramic eye (11) and the yarn outlet ceramic eye (12). The ceramic column (3) is provided with a yarn guide groove (31) that passes through the ceramic column (3). The yarn guide groove (31) is provided with a yarn guide surface (310). A pair of yarn clamping pieces (4) are provided with sleeve holes (40) that are adapted to the radial dimensions of the ceramic column (3). The yarn clamping pieces (4) are rotatably mounted on the ceramic column (3) through the sleeve holes (40). The pair of yarn clamping pieces (4) are attached to each other by setting magnetic attraction components on opposite sides of each other. The position of the yarn guide surface (310) is offset at the rotation center of the yarn clamping pieces (4).

2. The yarn feeder tensioner according to claim 1, characterized in that: It also includes a yarn clearing plate (5), which has a yarn clearing groove (51) adapted to the radial dimension of the yarn. The yarn clearing plate (5) is located between the yarn inlet ceramic eye (11) and the ceramic column (3) or between the yarn outlet ceramic eye (12) and the ceramic column (3).

3. The yarn feeder tensioner according to claim 2, characterized in that: The connecting seat (1) is provided with a mounting frame (13), and the yarn clearing plate (5) is mounted on the mounting frame (13). The yarn clearing plate (5) has several yarn clearing grooves (51), and each yarn clearing groove (51) corresponds to a different yarn radial dimension. The yarn clearing plate (5) can be adjusted and mounted on the mounting frame (13) so that each yarn clearing groove (51) can be adjusted to a preset yarn clearing position.

4. The yarn feeder tensioner according to claim 3, characterized in that: The yarn clearing plate (5) is provided with a first positioning part (52) corresponding to a plurality of yarn clearing grooves (51) one by one. The yarn clearing grooves (51) are also provided with a second positioning part (53). The plurality of yarn clearing grooves (51) and the first positioning part (52) are arranged in a circumferential array around the second positioning part (53). The mounting frame (13) is provided with a third positioning part (131) and a fourth positioning part (132). The fourth positioning part (132) is connected to the second positioning part (53). When the yarn clearing plate (5) is adjusted to the point where one of the first positioning parts (52) is connected to the third positioning part (131), the yarn clearing groove (51) corresponding to the first positioning part (52) is in a preset yarn clearing position.

5. The yarn feeder tensioner according to claim 1, characterized in that: The ceramic column frame (2) includes: Mounting rod (21), the ceramic column (3) is fixed on mounting rod (21); The limiting extension (22) extends from both ends of the mounting rod (21) and is bent into shape. The limiting extension (22) is limited to both ends of the ceramic column (3). One end of the ceramic column (3) is provided with a notch (32). Moving the clamping piece (4) to the sleeve hole (40) and entering the notch (32) can allow the clamping piece (4) to pass through the limiting extension (22) from the ceramic column (3). The notch (32) is located on the outer side of the yarn guide groove (31) in the axial direction, so that the yarn clamp (4) cannot enter the notch (32) during use due to the limitation of the yarn.

6. The yarn feeder tensioner according to claim 5, characterized in that: The ceramic column frame (2) also includes a mounting part (23), which extends from the end of the limiting extension part (22) away from the mounting rod (21); The connecting seat (1) is provided with a slot (14) that is compatible with the mounting part (23), and the mounting part (23) is inserted into the slot (14); It also includes a limiting baffle (6), which is movably installed on the connecting seat (1). The limiting baffle (6) is used to tightly limit the mounting part (23) within the slot (14). The limiting baffle (6) can be movably switched to disable the limiting of the mounting part (23).

7. The yarn feeder tensioner according to claim 6, characterized in that: The limiting baffle (6) is slidably mounted on the connecting seat (1). The limiting baffle (6) is provided with a through groove (60) with closed edges. The through groove (60) includes a through groove (61) and a receiving groove (62) communicating with the through groove (61). The through groove (61) is adapted to the shape of the slot (14). The mounting part (23) on one side is inserted into the through groove (60). When the limiting baffle (6) moves to the point where the through groove (61) corresponds to the slot (14), the limiting baffle (6) fails to limit the mounting part (23). When the limiting baffle (6) moves to the point where the receiving groove (62) is stuck on the mounting part (23), the mounting part (23) is limited to the slot (14).

8. The yarn feeder tensioner according to claim 7, characterized in that: The limiting baffle (6) is provided with a limiting protrusion (63), and the connecting seat (1) is provided with a pair of slots (15) that are adapted to the limiting protrusion (63). The limiting protrusion (63) is elastically placed in the slot (15), and the limiting baffle (6) moves until the limiting protrusion (63) enters the pair of slots (15) respectively to switch the limiting state of the limiting baffle (6) on the mounting part (23).

9. A yarn feeder tensioner according to claim 8, characterized in that: The connecting seat (1) includes a main seat body (16) and a yarn guide arm (17) that are connected separately. A slot (14) is provided on the main seat body (16). A yarn inlet ceramic eye (11) is installed on the yarn guide arm (17) at one end away from the main seat body (16). The limiting baffle (6) is slidably disposed between the main seat body (16) and the yarn guide arm (17). The main seat body (16) is provided with a limiting edge (161) and a limiting protrusion (162). The limiting edge (161) and the limiting protrusion (162) are respectively limited on both sides perpendicular to the sliding direction of the limiting baffle (6). The yarn guide arm (17) is provided with a positioning hole (170) that corresponds to the limiting protrusion (162). The yarn guide arm (17) is connected to the main body (16) by screws, and the limiting protrusion (162) is housed in the positioning hole (170).

10. A yarn feeder tensioner according to claim 1, characterized in that: The ceramic column (3) is provided with an inlet groove (33) that extends inclinely to the axial direction of the ceramic column (3). One end of the inlet groove (33) is connected to the yarn guide groove (31), and the other end extends beyond the side wall of the ceramic column (3).

Images