Mortise and tenon device for winder of sewing machine

Abstract

The utility model discloses a clamping tenon device of a sewing machine winder, and relates to the technical field of sewing machine winders. The device comprises a winder rotating shaft, the top of the winder rotating shaft is rotatably connected with a screw through a bearing, the upper end of the screw is fixedly sleeved with a brake handle, the interior of the winder rotating shaft is slidably connected with a rectangular sliding block, the lower end of the screw is screwed into the rectangular sliding block in a threaded mode, and the bottom of the rectangular sliding block is fixedly connected with a rectangular sliding plate. Connecting sliding grooves are symmetrically formed in the rectangular sliding plate, and side sliding grooves are symmetrically formed in the side wall of the winder rotating shaft. By rotating the screw rod, the mortise and tenon column body and the mortise and tenon column head on the two sides can be driven to move outwards together, the lock cylinder can be stably locked through the mortise and tenon column head, the winder is effectively prevented from slipping in the winding process, and therefore the winder rotating shaft 1 can stably wind wires, the bolt is screwed out of the mortise and tenon column body, and the locking effect is good. And the mortise and tenon column head can be detached, so that personnel can replace the mortise and tenon column head conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing machine thread winder technical field, especially, it relates to a sewing machine thread winder tenon device. BACKGROUND

[0002] The tenon for fixing the lock core on the rotating shaft of the existing sewing machine thread winder usually adopts a single-sided groove spring structure. When the thread winder tenon is in use, the lock core cannot be stably fixed, which makes the thread winder prone to slipping during the thread winding operation, and the thread winder rotating shaft cannot wind the thread. After searching, the patent with the application number 202122407675.6 discloses a sewing machine thread winder tenon device, which comprises a thread winder rotating shaft, a spring and an adjusting column. The inside of the thread winder rotating shaft is provided with a complex groove. The upper part of the complex groove is cylindrical, the lower part is conical, and the inner wall has threads. The upper part of the complex groove is connected with the adjusting column through threads. The adjusting column is a cylindrical structure, and the outer diameter of the adjusting column is the same as the inner diameter of the complex groove. The inside of the complex groove is placed with a spring. The spring is arrow-shaped. The top end of the spring is embedded with a shock-absorbing block. The top of the shock-absorbing block is provided with a baffle. The baffle is annular.

[0003] However, in the actual use process, the applicant found that when fixing the lock core, the spring provided thereon is used to extrude the steel ball, and the steel ball is used to fix the lock core. Since the steel ball itself is prone to rotating, and the steel ball and the spring are in elastic contact, the position of the steel ball is not stable enough, and the lock core cannot be fixed well, so that the thread winder rotating shaft is not stable enough when winding the thread. In view of this, we propose a sewing machine thread winder tenon device. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model discloses a sewing machine thread winder tenon device, including thread winder pivot, the top of thread winder pivot is rotatably connected with screw rod through bearing, the upper end of screw rod is fixed with brake handle of bushing connection, the inside slip connection of thread winder pivot has rectangular slide, the lower end screw of screw rod is screwed into rectangular slide, the bottom fixed connection of rectangular slide has rectangular slide plate, the symmetrical connection slide groove that is seted up on rectangular slide plate, the symmetrical side slide groove that is seted up on the lateral wall of thread winder pivot, the slide connection of side slide groove has tenon column, the fixed connection of tenon column outer end has tenon post, the fixed connection of the inner end of tenon column has connecting slide post, connecting slide post slides along connection slide groove, the fixed connection of tenon post through screw in the outer end of tenon column, the outer end of tenon column is provided with connecting boss, the one end of screw is seted up with connecting groove, the one end of screw is screwed into tenon column after the penetration of tenon post, the fixed connection of the outer wall of thread winder pivot below tenon post has bisector board.

[0006] Preferably, the connecting groove is matched with the connecting boss.

[0007] Preferably, the tenon column is provided with a threaded hole, and the one end of the screw is screwed into the threaded hole after penetrating the mounting hole of the tenon post.

[0008] Preferably, a counterbore groove is formed in the middle of the tenon post away from the connecting groove, and the end of the screw is embedded in the counterbore groove.

[0009] Preferably, the peripheral wall of the tenon column and the tenon post slides along the side slide groove.

[0010] Preferably, the inside of the thread winder pivot is provided with a first rectangular slide groove, the rectangular slide block slides along the first rectangular slide groove, the second rectangular slide groove is formed in the thread winder pivot below the first rectangular slide groove, the rectangular slide plate slides along the second rectangular slide groove, and the bisector board is disc-shaped.

[0011] The utility model has the following beneficial effects:

[0012] The sewing machine thread winder tenon device can drive the tenon column and the tenon post on both sides to move outward together by the cooperation of the connection slide groove and the connecting slide post, and the tenon post can stably lock the lock cylinder, effectively preventing the thread winder from slipping during winding, so that the thread winder pivot can stably wind. By rotating the screw counterclockwise to rotate out of the tenon column, the tenon post can be quickly disassembled from the outer end of the tenon column, so that personnel can replace the damaged or severely damaged tenon post without replacing the entire tenon column, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the external structure of a sewing machine bobbin winder latch device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of a sewing machine bobbin winder latch device according to the present invention;

[0016] Figure 3 This utility model is a sewing machine winder latch device Figure 2 A magnified view of the structure in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Winder shaft; 11. Bisecting plate; 12. First rectangular slide; 13. Second rectangular slide; 14. Side slide; 2. Screw; 21. Brake handle; 3. Tenon column head; 31. Connecting groove; 32. Countersunk groove; 4. Screw; 5. Rectangular slider; 6. Rectangular slide; 61. Connecting slide; 7. Tenon column; 71. Connecting slide; 72. Connecting protrusion; 73. Threaded hole. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-3 As shown, the utility model provides a technical solution:

[0021] The utility model provides a sewing machine thread winder tenon device, including thread winder pivot 1, the top of thread winder pivot 1 is rotatably connected with screw rod 2 through bearing, the upper end of screw rod 2 is fixedly connected with brake handle 21, the inside of thread winder pivot 1 is slidably connected with rectangular slide 5, the inside of thread winder pivot 1 is equipped with first rectangular slide groove 12, rectangular slide 5 slides along first rectangular slide groove 12, the lower end of screw rod 2 is screwed into rectangular slide 5, the bottom of rectangular slide 5 is fixedly connected with rectangular slide plate 6, the second rectangular slide groove 13 of thread winder pivot 1 under first rectangular slide groove 12 is equipped with, rectangular slide plate 6 slides along second rectangular slide groove 13, the symmetrically equipped with connecting slide groove 61 on rectangular slide plate 6, the symmetrically equipped with side slide groove 14 on the lateral wall of thread winder pivot 1, side slide groove 14 is slidably connected with tenon cylinder 7, the outer end of tenon cylinder 7 is fixedly connected with tenon cylinder head 3, the lateral wall of tenon cylinder 7 and tenon cylinder head 3 all slides along side slide groove 14, the inner end of tenon cylinder 7 is fixedly connected with connecting slide 71, and connecting slide 71 slides along connecting slide groove 61, by clockwise rotating screw rod 2 and drive rectangular slide 5 and rectangular slide plate 6 move down, can drive both sides tenon cylinder 7 and tenon cylinder head 3 together and move outward through the cooperation of connecting slide groove 61 and connecting slide 71, and can be locked by tenon cylinder head 3 to lock cylinder, effectively prevent thread winder from slipping during winding, so that thread winder pivot 1 can be stably wound, the outer wall of thread winder pivot 1 under tenon cylinder head 3 is fixedly connected with bisector plate 11, and bisector plate 11 is disc-shaped, can drive screw rod 2 rotate by clockwise operating brake handle 21, and screw rod 2 rotation can drive rectangular slide 5 together with rectangular slide plate 6 and move down, at this time, by the cooperation of connecting slide groove 61 and connecting slide 71, can drive both sides tenon cylinder 7 together with tenon cylinder head 3 and move outward along side slide groove 14, and lock cylinder by both sides tenon cylinder head 3, effectively prevent thread winder from slipping during winding.

[0022] The tenon post 3 is fixedly connected to the outer end of the tenon column body 7 by a screw 4. The outer end of the tenon column body 7 is provided with a connecting protrusion 72. The screw 4 is provided with a connecting groove 31 at one end close to the tenon column body 7. The connecting groove 31 is connected to the connecting protrusion 72. One end of the screw 4 is screwed into the tenon column body 7 after penetrating the tenon post 3. The screw 4 is rotated counterclockwise to be unscrewed from the tenon column body 7. The tenon post 3 can be quickly disassembled from the outer end of the tenon column body 7. Thus, the damaged or severely damaged tenon post 3 can be replaced without replacing the entire tenon column body 7. The use effect is better. The tenon column body 7 is provided with a threaded hole 73. One end of the screw 4 is screwed into the threaded hole 73 after penetrating the mounting hole of the tenon post 3. The tenon post 3 is provided with a countersunk groove 32 in the middle away from the connecting groove 31. The end of the screw 4 is embedded in the countersunk groove 32. The end of the screw 4 can prevent the lock core from being affected. When the tenon post 3 is severely worn or damaged after being used for a period of time, the screw 4 can be unscrewed from the tenon column body 7 by using a screwdriver. The old tenon post 3 can be disassembled from the outer end of the tenon column body 7. Then, the connecting groove 31 of the new tenon post 3 is aligned with and sleeved on the tenon column body 7. Then, the screw 4 is penetrated through the mounting hole of the tenon post 3 by using a screwdriver and is screwed into the threaded hole 73. The new tenon post 3 is fixed to the outer end of the tenon column body 7. Thus, the tenon post 3 can be quickly replaced.

[0023] Working principle: when in use, the brake handle 21 can be rotated clockwise to drive the screw rod 2 to rotate. The rotation of the screw rod 2 can drive the rectangular sliding block 5 and the rectangular sliding plate 6 to move downward. At this time, the connection between the connecting sliding groove 61 and the connecting sliding column 71 can drive the two tenon column bodies 7 and the two tenon posts 3 to move outward along the side sliding groove 14. The two tenon posts 3 can lock the lock core. Thus, the wire winding device can be effectively prevented from slipping during the winding process. When the tenon post 3 is severely worn or damaged after being used for a period of time, the screw 4 can be unscrewed from the tenon column body 7 by using a screwdriver. The old tenon post 3 can be disassembled from the outer end of the tenon column body 7. Then, the connecting groove 31 of the new tenon post 3 is aligned with and sleeved on the tenon column body 7. Then, the screw 4 is penetrated through the mounting hole of the tenon post 3 by using a screwdriver and is screwed into the threaded hole 73. The new tenon post 3 is fixed to the outer end of the tenon column body 7. Thus, the tenon post 3 can be quickly replaced.

[0024] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification to the technical scheme recorded in the foregoing embodiments, equivalent replacement to part of the technical features, all belong to the protection scope of the utility model.

Claims

1. A sewing machine thread winder jockey device comprising a thread winder spindle (1) characterized in that: The top of the winding reel rotating shaft (1) is rotatably connected with a screw rod (2) through a bearing, the upper end of the screw rod (2) is fixedly sleeved with a brake handle (21), the inside of the winding reel rotating shaft (1) is slidably connected with a rectangular sliding block (5), the lower end of the screw rod (2) is screwed into the rectangular sliding block (5), the bottom of the rectangular sliding block (5) is fixedly connected with a rectangular sliding plate (6), the rectangular sliding plate (6) is symmetrically provided with a connecting sliding groove (61), the side wall of the winding reel rotating shaft (1) is symmetrically provided with a side sliding groove (14), the side sliding groove (14) is slidably connected with a tenon column body (7), the outer end of the tenon column body (7) is fixedly connected with a tenon column head (3), the inner end of the tenon column body (7) is fixedly connected with a connecting sliding column (71), the connecting sliding column (71) slides along the connecting sliding groove (61), the tenon column head (3) is fixedly connected to the outer end of the tenon column body (7) through a screw (4), the outer end of the tenon column body (7) is provided with a connecting protrusion (72), the end of the screw (4) close to the tenon column body (7) is provided with a connecting groove (31), one end of the screw (4) is screwed into the tenon column body (7) after penetrating through the tenon column head (3), and the outer wall of the winding reel rotating shaft (1) below the tenon column head (3) is fixedly sleeved with a bisector plate (11).

2. A sewing machine thread winder dog device according to claim 1 wherein, The connecting groove (31) is matched with the connecting protrusion (72).

3. A sewing machine thread winder quill assembly according to claim 1 wherein, Threaded holes (73) are formed in the tenon column body (7), and one end of the screw (4) is screwed into the threaded holes (73) after penetrating through the mounting hole in the tenon column head (3).

4. The sewing machine thread winder chuck of claim 1 wherein, A counterbore groove (32) is formed in the middle of the side, away from the connecting groove (31), of the tenon column head (3), and the end of the screw (4) is embedded in the counterbore groove (32).

5. The sewing machine thread winder chuck of claim 1 wherein, The tenon column body (7) and the tenon column head (3) slide along the side sliding groove (14).

6. A sewing machine thread winder chuck as defined in claim 1, wherein, The inside of the winding reel rotating shaft (1) is provided with a first rectangular sliding groove (12), the rectangular sliding block (5) slides along the first rectangular sliding groove (12), the winding reel rotating shaft (1) below the first rectangular sliding groove (12) is provided with a second rectangular sliding groove (13), the rectangular sliding plate (6) slides along the second rectangular sliding groove (13), and the bisector plate (11) is disc-shaped.

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