Yarn spreading rod polishing device

Abstract

The invention is suitable for the technical field of grinding and polishing, and provides a yarn spreading rod grinding device which comprises a rack and two lifting adjusting structures installed at the top and the bottom of the rack, a grinding mechanism is installed on one side of the rack, and a grinding positioning mechanism matched with the grinding mechanism is installed on the lifting adjusting structures; and a yarn spreading rod is clamped on a roller in the polishing and positioning mechanism. According to the yarn spreading rod polishing and positioning mechanism, adjustment can be conducted according to yarn spreading rods with different diameters in the using process, so that the distance between two sets of idler wheels installed on the same fixed guide groove can be suitable for yarn spreading rods with different diameters, and the yarn spreading rods with different diameters can be stably clamped through the polishing and positioning mechanism; and the position of the roller in contact with the yarn spreading rod can be adjusted, so that an unpolished part can be conveniently conveyed to a polished position, and the use convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and polishing, and more specifically, to a yarn spreading rod grinding device. Background Art

[0002] The yarn spreading rod is mainly used to evenly spread the fiber bundle during the fiber manufacturing process to ensure that the fiber bundle's width, thickness, tension and other parameters meet the production requirements. The yarn spreading rod can improve the fiber quality and production efficiency. Therefore, as an important component of the fiber manufacturing equipment, the surface smoothness and good coaxiality of the yarn spreading rod have an important impact on the fiber quality.

[0003] The existing application publication number is CN114290140A, which is a grinding device, comprising: a frame; a grinding positioning mechanism, the grinding positioning mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is fixedly connected to the frame, the second clamping assembly is movably connected to the frame, and the grinding positioning mechanism is used to clamp the workpiece to be ground; a lifting and adjusting structure, the lifting and adjusting structure is movably connected to the frame, the lifting and adjusting structure is drivingly connected to the second clamping assembly, the second clamping assembly moves linearly on the frame through the lifting and adjusting structure, and moves closer to or farther from the first clamping assembly; a grinding mechanism, which is arranged on the frame, the grinding mechanism comprises a depth adjustment assembly, a driving assembly and a grinding wheel, and the grinding depth is adjusted by adjusting the depth adjustment assembly. The above-mentioned grinding device can be hand-held and can meet the needs of operations in narrow spaces. When grinding a workpiece, the grinding assembly rotates around the workpiece to complete the grinding of the entire circumference, the concentricity of the grinding is guaranteed, and the grinding angle and grinding depth can be freely adjusted.

[0004] Although the above-mentioned disclosed technical solution can grind the yarn spreading rod, due to the long length of the yarn spreading rod, the position of the yarn spreading rod needs to be continuously adjusted during the grinding process so that the unground part enters the grinding position, and the above-mentioned grinding positioning mechanism is not conducive to adjusting it during the process of supporting the yarn spreading rod; in addition, since the position of the above-mentioned disclosed grinding positioning mechanism is fixed (the distance between the first support feet on the same first support seat is fixed), in actual use, when encountering yarn spreading rods of different diameters, its clamping effect is not stable. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a yarn spreading rod grinding device.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The invention discloses a yarn spreading rod grinding device, comprising a frame and two lifting and adjusting structures installed on the top and bottom of the frame, a grinding mechanism is installed on one side of the frame, and a grinding positioning mechanism matched with the grinding mechanism is installed on the lifting and adjusting structure.

[0007] The grinding positioning mechanism includes a support frame hinged to the lifting and adjusting structure and passing through the frame, a support plate is installed at one end of the support frame located inside the frame, both ends of the support plate are penetrated by cylindrical support sleeves rotatably connected to the support plate, and a first motor is fixed on the support plate and transmission-connected to the cylindrical support sleeve.

[0008] A fixed guide groove is fixed on one end of the cylindrical support sleeve located inside the frame, a first screw rod passes through the fixed guide groove along the length direction, one end of the first screw rod located inside the fixed guide groove is transmission-connected with two movable seats, and a worm gear coaxial with the first screw rod is installed at a position where the first screw rod is located inside the fixed guide groove and is equidistant from the two movable seats.

[0009] A second motor is installed in the cylindrical support sleeve, and a transmission shaft is fixed to the output shaft end of the second motor, which passes through the cylindrical support sleeve and extends to the inside of the fixed guide groove, and a worm meshing with the worm gear is fixed to one end of the transmission shaft located in the fixed guide groove; one end of the movable seat passes through the fixed guide groove and is fixed with a support seat, and a roller is rotatably connected to the support seat; a telescopic rod is passed through the support plate and is fixedly connected to the support plate, and an arc-shaped top plate is fixed to the telescopic end of the telescopic rod.

[0010] As a preferred technical solution of the present invention, the lifting and lowering adjustment structure includes a fifth motor fixedly mounted on the top of the frame, a second screw rod installed on the top of the frame through a rotating shaft bracket is fixed to the output shaft end of the fifth motor, two threaded moving blocks are transmission-connected to the second screw rod, a roller in contact with the top of the frame is installed at the bottom of the internal thread moving block, a support rod is hinged on the top of the internal thread moving block, and the end of the support rod away from the internal thread moving block is hinged to the support frame.

[0011] As a preferred technical solution of the present invention, the grinding mechanism includes a depth adjustment component, a transmission component and a grinding wheel. The depth adjustment component is fixedly mounted on the frame, the transmission component and the grinding wheel are both mounted on the depth adjustment component, and the transmission component is connected to the grinding wheel for transmission.

[0012] As a preferred technical solution of the present invention, the depth adjustment assembly includes an adjustment plate and a third motor fixedly mounted on a frame, drive plates that penetrate the frame and are slidably connected to the frame are fixed at both ends of the adjustment plate, an externally threaded rod that is fixed to the output shaft end of the third motor and is transmission-connected to the drive plate, the grinding wheel is rotatably mounted on one side of the adjustment plate facing the frame, and the transmission assembly is mounted on the other side of the adjustment plate.

[0013] As a preferred technical solution of the present invention, the transmission assembly includes a fourth motor, a first transmission wheel, a transmission belt and a second transmission wheel. The first transmission wheel is installed on the output shaft end of the fourth motor, the second transmission wheel is installed on one end of the grinding wheel, and the first transmission wheel and the second transmission wheel are connected by a transmission belt.

[0014] As a preferred technical solution of the present invention, the top and bottom of the frame are both provided with through grooves that cooperate with the support frame.

[0015] As a preferred technical solution of the present invention, a grinding depth groove cooperating with a grinding wheel is opened on one side of the frame, and extension plates are fixed at both ends of the grinding depth groove, which are penetrated by the driving plate and in sliding contact with the driving plate, and a fixing plate for installing a third motor and an external threaded rod is fixed on the extension plate.

[0016] As a preferred technical solution of the present invention, an annular gear ring is fixed on the top end face of the cylindrical support sleeve, and the annular gear ring is arranged outside the cylindrical support sleeve and coaxially with the cylindrical support sleeve, and a driving gear meshing with the annular gear ring is fixed on the output shaft end of the first motor.

[0017] As a preferred technical solution of the present invention, a bearing coaxial with the cylindrical support sleeve is sleeved on the cylindrical support sleeve, the top end face of the bearing contacts the annular gear ring, and the bottom end face of the bearing contacts the support plate.

[0018] As a preferred technical solution of the present invention, a yarn spreading rod is clamped on the roller in the grinding and positioning mechanism.

[0019] The advantages of the present invention are: The present invention arranges a grinding and positioning mechanism on the frame and is driven by a lifting and adjusting structure. The mechanism can be adjusted during use according to yarn spreading rods of different diameters, so that the spacing between two groups of rollers installed on the same fixed guide groove can be suitable for yarn spreading rods of different diameters. The grinding and positioning mechanism can stably clamp yarn spreading rods of different diameters, ensuring that they have good concentricity, thereby improving the grinding quality of the yarn spreading rod.

[0020] The present invention provides a rotatable support seat with a roller so that the position of the roller in contact with the yarn spreading rod can be adjusted. When the unpolished position of the yarn spreading rod needs to be polished, the roller contacts the yarn spreading rod along the axial direction of the yarn spreading rod, which facilitates the transportation of the unpolished part to the polishing position, thereby improving the convenience of use.

[0021] The present invention grinds and polishes the yarn spreading rod through a grinding mechanism, and extends the grinding wheel through a grinding depth groove into the inside of a frame through a depth adjustment component, and the grinding depth of the yarn spreading rod can be controlled under the action of an external threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic structural diagram of a yarn spreading rod grinding device.

[0023] Figure 2 It is a structural schematic diagram of another viewing angle of the present invention.

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the present invention cooperating with the yarn spreading rod.

[0026] Figure 5 It is a structural schematic diagram of the grinding positioning mechanism.

[0027] Figure 6 This is a structural schematic diagram of the grinding positioning mechanism from another perspective.

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the grinding positioning mechanism.

[0029] Figure 8 for Figure 7 Schematic diagram of the local enlarged structure at point A in the middle.

[0030] Fig. 9 This is the front view of the polishing positioning mechanism.

[0031] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure at AA in the middle.

[0032] Fig.11 It is a structural schematic diagram of the lifting and lowering adjustment structure.

[0033] Fig.12 Schematic diagram of the grinding mechanism.

[0034] Fig.13 A schematic diagram of the rack structure.

[0035] In the accompanying drawings: 1, frame; 101, through slot; 102, grinding deep slot; 103, extension plate; 104, fixing plate; 2. Lifting and lowering adjustment structure; 201. fifth motor; 202. second screw rod; 203. internal thread moving block; 204. supporting wheel; 205. supporting rod; 3. Grinding mechanism; 301. Depth adjustment assembly; 3011. Adjustment plate; 3012. Third motor; 3013. Drive plate; 3014. External threaded rod; 302. Transmission assembly; 303. Grinding wheel; 4. Grinding positioning mechanism; 401. Support frame; 402. Support plate; 403. Cylindrical support sleeve; 404. Bearing; 405. First motor; 406. Fixed guide groove; 407. First screw rod; 408. Moving seat; 409. Worm gear; 410. Second motor; 411. Transmission shaft; 412. Worm; 413. Support seat; 414. Roller; 415. Telescopic rod; 416. Arc top plate; 417. Ring gear; 418. Driving gear; 5. Yarn spreading rod. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0037] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Embodiment 1

[0039] See also Figure 1-13 Structural schematic diagram, the present invention provides the following technical solutions: Specifically, it refers to a yarn spreading rod grinding device, including a frame 1 and two lifting and adjusting structures 2 installed at the top and bottom of the frame 1, a grinding mechanism 3 is installed on one side of the frame 1, a grinding and positioning mechanism 4 cooperating with the grinding mechanism 3 is installed on the lifting and adjusting structure 2, and a yarn spreading rod 5 is clamped on a roller 414 in the grinding and positioning mechanism 4. The two lifting and adjusting structures 2 cooperate with the grinding and positioning mechanism 4, so that the axis of the yarn spreading rod 5 clamped by the grinding and positioning mechanism 4 passes through the grinding deep groove 102 and remains on the same horizontal plane with the grinding mechanism 3, thereby ensuring the concentricity of the grinding of the yarn spreading rod 5.

[0040] The grinding positioning mechanism 4 includes a support frame 401 which is hinged with the lifting and adjusting structure 2 and passes through the frame 1. The frame 1 is provided with a through slot 101 which matches the support frame 401 at the top and bottom. A support plate 402 is installed at one end of the support frame 401 located inside the frame 1. Both ends of the support plate 402 are penetrated with a cylindrical support sleeve 403 which is rotatably connected to the support plate 402. A first motor 405 which is transmission-connected to the cylindrical support sleeve 403 is fixed on the support plate 402. An annular gear ring 417 is fixed on the top end surface of the cylindrical support sleeve 403. The annular gear ring 417 is sleeved on the outside of the cylindrical support sleeve 403 and is coaxially arranged with the cylindrical support sleeve 403. A driving gear 418 which meshes with the annular gear ring 417 is fixed on the output shaft end of the first motor 405. The driving gear 418 rotates under the drive of the first motor 405, and then drives the cylindrical support sleeve 403 to rotate through the mutual meshing of the annular gear ring 417 and the driving gear 418.

[0041] A bearing 404 coaxial with the cylindrical support sleeve 403 is sleeved on the cylindrical support sleeve 403, the top end face of the bearing 404 is in contact with the annular gear ring 417, and the bottom end face of the bearing 404 is in contact with the support plate 402. The bearing 404 is used to bear the weight of the entire cylindrical support sleeve 403 and the components installed on the cylindrical support sleeve 403, so as to facilitate the rotation of the cylindrical support sleeve 403 on the support plate 402 under the drive of the second motor 410.

[0042] A fixed guide groove 406 is fixed at one end of the cylindrical support sleeve 403 located inside the frame 1. Since the fixed guide groove 406 is fixed at the bottom of the cylindrical support sleeve 403, when the cylindrical support sleeve 403 rotates, the fixed guide groove 406 is driven to rotate together. A first screw rod 407 passes through the fixed guide groove 406 along the length direction, and one end of the first screw rod 407 located inside the fixed guide groove 406 is transmission-connected with two movable seats 408. The first screw rod 407 is located inside the fixed guide groove 406 and a worm gear 409 coaxial with the first screw rod 407 is installed at a position equidistant from the two movable seats 408; a second motor 410 is installed in the cylindrical support sleeve 403, and a transmission shaft 411 that passes through the cylindrical support sleeve 403 and extends to the fixed guide groove 406 is fixed to the output shaft end of the second motor 410, and a worm 412 meshing with the worm gear 409 is fixed to one end of the transmission shaft 411 located inside the fixed guide groove 406; one end of the movable seat 408 passes through the fixed guide groove 406 and is fixed with a support seat 413, and a roller 414 is rotatably connected to the support seat 413. The second motor 410 drives the worm gear 409 to rotate by driving the worm 412, thereby causing the first screw rod 407 fixedly connected to the worm gear 409 to rotate. The rotation of the first screw rod 407 drives the movable seat 408 connected thereto to move in relative or opposite directions, thereby adjusting the distance between the rollers 414 on different support seats 413 on the uniform fixed guide groove 406, so that the device can be suitable for yarn spreading rods 5 with different diameters, thereby improving the applicability of the device.

[0043] Since the above structures are all installed on the cylindrical support sleeve 403 and the fixed guide groove 406, the rotation of the cylindrical support sleeve 403 can drive it to rotate together, so that the direction of the roller 414 thereon can be adjusted, which facilitates the movement of the polished yarn spreading rod 5 clamped thereon, and moves the unpolished position to the position corresponding to the grinding mechanism 3, thereby improving the ease of use of the device.

[0044] A telescopic rod 415 fixedly connected to the support plate 402 passes through the support plate 402, and an arc-shaped top plate 416 is fixed to the telescopic end of the telescopic rod 415. The coordinated use of the telescopic rod 415 and the arc-shaped top plate 416 can lift the yarn spreading rod 5 while adjusting the direction of the roller 414, so that the yarn spreading rod 5 is separated from the roller 414.

[0045] The lifting and lowering adjustment structure 2 includes a fifth motor 201 fixedly mounted on the top of the frame 1, a second screw rod 202 mounted on the top of the frame 1 through a rotating shaft bracket is fixed to the output shaft end of the fifth motor 201, two threaded moving blocks 203 are drivingly connected to the second screw rod 202, a support wheel 204 in contact with the top of the frame 1 is installed at the bottom of the internal thread moving block 203, a support rod 205 is hinged at the top of the internal thread moving block 203, and one end of the support rod 205 away from the internal thread moving block 203 is hinged to the support frame 401. The lifting and lowering adjustment structure 2 can adjust the distance between the two grinding positioning mechanisms 4 when grinding the yarn spreading rods 5 of different diameters, so that the roller 414 can cooperate with the yarn spreading rods 5 of different diameters. Embodiment 2

[0046] Based on the specific embodiment 1, the difference of this embodiment is that: like Figure 2 , 12 As shown, the grinding mechanism 3 includes a depth adjustment component 301, a transmission component 302 and a grinding wheel 303. The depth adjustment component 301 is fixedly mounted on the frame 1, and the transmission component 302 and the grinding wheel 303 are both mounted on the depth adjustment component 301. The transmission component 302 is in transmission connection with the grinding wheel 303. A grinding depth groove 102 cooperating with the grinding wheel 303 is provided on one side of the frame 1, and an extension plate 103 penetrating through the driving plate 3013 and in sliding contact with the driving plate 3013 is fixed at both ends of the grinding depth groove 102.

[0047] The depth adjustment assembly 301 includes an adjustment plate 3011 and a third motor 3012 fixedly mounted on the frame 1. A fixing plate 104 for mounting the third motor 3012 and an externally threaded rod 3014 is fixed on the extension plate 103. A driving plate 3013 penetrating the frame 1 and slidably connected to the frame 1 is fixed at both ends of the adjustment plate 3011. The output shaft end of the third motor 3012 is fixed to an externally threaded rod 3014 that is transmission-connected to the driving plate 3013. The grinding wheel 303 is rotationally mounted on one side of the adjustment plate 3011 facing the frame 1, and the transmission assembly 302 is mounted on the other side of the adjustment plate 3011. The use of the depth adjustment assembly 301 can control the distance that the grinding wheel 303 penetrates into the groove 102 through grinding into the inside of the frame 1, which is used to control the grinding depth and adapt to grinding of yarn spreading rods 5 of different diameters.

[0048] The transmission assembly 302 includes a fourth motor, a first transmission wheel, a transmission belt and a second transmission wheel. The first transmission wheel is installed on the output shaft end of the fourth motor, and the second transmission wheel is installed on one end of the grinding wheel 303. The first transmission wheel and the second transmission wheel are connected by a transmission belt.

[0049] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A yarn spreading rod grinding device, comprising a frame (1) and two lifting and adjusting structures (2) installed at the top and bottom of the frame (1), a grinding mechanism (3) being installed at one side of the frame (1), characterized in that: The lifting and adjusting structure (2) is provided with a grinding and positioning mechanism (4) which cooperates with the grinding mechanism (3); The polishing positioning mechanism (4) comprises a support frame (401) hinged to the lifting and adjusting structure (2) and penetrating the frame (1); a support plate (402) is installed at one end of the support frame (401) located inside the frame (1); both ends of the support plate (402) are penetrated by cylindrical support sleeves (403) rotatably connected to the support plate (402); and a first motor (405) is fixed on the support plate (402) and is transmission-connected to the cylindrical support sleeve (403); A fixed guide groove (406) is fixed to one end of the cylindrical support sleeve (403) located inside the frame (1); a first screw rod (407) passes through the fixed guide groove (406) along the length direction; a section of the first screw rod (407) located inside the fixed guide groove (406) is transmission-connected to two movable seats (408); a worm wheel (409) coaxial with the first screw rod (407) is installed at a position of the first screw rod (407) located inside the fixed guide groove (406) and equidistant from the two movable seats (408); A second motor (410) is installed in the cylindrical support sleeve (403); a transmission shaft (411) penetrating the cylindrical support sleeve (403) and extending into the fixed guide groove (406) is fixed to the output shaft end of the second motor (410); a worm (412) meshing with the worm wheel (409) is fixed to one end of the transmission shaft (411) located inside the fixed guide groove (406); One end of the movable seat (408) passes through the fixed guide groove (406) and is fixed with a support seat (413), and a roller (414) is rotatably connected to the support seat (413); The support plate (402) is penetrated by a telescopic rod (415) fixedly connected to the support plate (402), and a curved top plate (416) is fixed to the telescopic end of the telescopic rod (415).

2. A yarn spreading rod grinding device according to claim 1, characterized in that: The lifting and lowering adjustment structure (2) comprises a fifth motor (201) fixedly mounted on the top of the frame (1); a second screw rod (202) mounted on the top of the frame (1) via a rotating shaft bracket is fixed to the output shaft end of the fifth motor (201); two threaded moving blocks (203) are drivingly connected to the second screw rod (202); a support wheel (204) in contact with the top of the frame (1) is mounted at the bottom of the internal threaded moving block (203); a support rod (205) is hingedly connected to the top of the internal threaded moving block (203); and an end of the support rod (205) away from the internal threaded moving block (203) is hingedly connected to the support frame (401).

3. A yarn spreading rod grinding device according to claim 1, characterized in that: The grinding mechanism (3) comprises a depth adjustment component (301), a transmission component (302) and a grinding wheel (303); the depth adjustment component (301) is fixedly mounted on the frame (1); the transmission component (302) and the grinding wheel (303) are both mounted on the depth adjustment component (301); and the transmission component (302) is in transmission connection with the grinding wheel (303).

4. A yarn spreading rod grinding device according to claim 3, characterized in that: The depth adjustment assembly (301) comprises an adjustment plate (3011) and a third motor (3012) fixedly mounted on the frame (1); drive plates (3013) penetrating the frame (1) and slidably connected to the frame (1) are fixedly mounted at both ends of the adjustment plate (3011); an externally threaded rod (3014) is fixedly mounted at an output shaft end of the third motor (3012) and is transmission-connected to the drive plate (3013); The grinding wheel (303) is rotatably mounted on one side of the adjustment plate (3011) facing the frame (1), and the transmission assembly (302) is mounted on the other side of the adjustment plate (3011).

5. A yarn spreading rod grinding device according to claim 4, characterized in that: The transmission assembly (302) comprises a fourth motor, a first transmission wheel, a transmission belt and a second transmission wheel, the first transmission wheel being mounted on the output shaft end of the fourth motor, the second transmission wheel being mounted on one end of the grinding wheel (303), and the first transmission wheel and the second transmission wheel being connected via a transmission belt.

6. A yarn spreading rod grinding device according to claim 1, characterized in that: The top and bottom of the frame (1) are both provided with through slots (101) that cooperate with the support frame (401).

7. A yarn spreading rod grinding device according to claim 4, characterized in that: A grinding groove (102) cooperating with a grinding wheel (303) is formed on one side of the frame (1), and extension plates (103) penetrating through the drive plate (3013) and in sliding contact with the drive plate (3013) are fixed at both ends of the grinding groove (102), and a fixing plate (104) for mounting a third motor (3012) and an externally threaded rod (3014) is fixed on the extension plate (103).

8. A yarn spreading rod grinding device according to claim 1, characterized in that: An annular gear ring (417) is fixed to the top end surface of the cylindrical support sleeve (403); the annular gear ring (417) is sleeved outside the cylindrical support sleeve (403) and is coaxially arranged with the cylindrical support sleeve (403); and a driving gear (418) meshing with the annular gear ring (417) is fixed to the output shaft end of the first motor (405).

9. A yarn spreading rod grinding device according to claim 8, characterized in that: A bearing (404) coaxial with the cylindrical support sleeve (403) is sleeved on the cylindrical support sleeve (403); the top end surface of the bearing (404) contacts the annular gear ring (417); and the bottom end surface of the bearing (404) contacts the support plate (402).

10. A yarn spreading rod grinding device according to claim 1, characterized in that: A yarn spreading rod (5) is clamped on the roller (414) in the grinding and positioning mechanism (4).

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