Rotating shuttle of sewing machine
By setting an elastic needle plate and screw on the sewing machine shuttle to adjust the needle deflection, the problem of skipped stitches caused by the increased gap between the needle and the shuttle tip is solved, thus improving sewing quality and efficiency.
Patent Information
- Application Number
- CN202423053372.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-11
AI Technical Summary
When sewing with a thicker thread or when turning corners, the gap between the needle and the hook tip increases, leading to frequent skipped stitches, which affects product quality and production efficiency.
The first and second elastic needle plates are fixed to the outer wall of the rotary hook body by screws, which limits the deflection of the needle and precisely controls the matching gap between the needle and the rotary hook tip to ensure that the rotary hook tip can effectively hook the thread.
It reduces the probability of skipped stitches, improving the quality of sewn products and production efficiency.
Smart Images
Figure CN223458522U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewing machine technical field, especially a sewing machine shuttle. BACKGROUND
[0002] The comprehensive feeding sewing machine is the main sewing equipment of sewing automobile articles, furniture, luggage and the like, can realize even, close sewing on multilayer fabric, is the indispensable equipment in industrial sewing, but under the condition of thick overlock, turning sewing and the like, the cooperation gap of needle and shuttle tip increases, needle skipping phenomenon often appears, influences product quality and production efficiency.
[0003] The existing anti-jumping needle technology is generally realized through the improvement of presser foot, cloth feeding and the like device, its purpose is to make the cloth feeding process more stable, and reduce the floating, wrinkle of cloth produced in the moving process as far as possible, thereby reducing the occurrence of needle skipping phenomenon. Another common scheme is to increase the thread loop through the device, so that the shuttle is easier to hook the thread, however, increasing the thread loop can improve the hooking problem, but the device needs a larger additional space, the existing model lacks space, and increasing the thread loop will also bring other negative effects. There is lack of solution scheme for needle skipping caused by needle jumping in turning sewing and thick overlock. Therefore, a sewing machine shuttle for solving the above problems is proposed. SUMMARY
[0004] The utility model discloses a sewing machine shuttle, solve the technical problem that needle skipping phenomenon often appears under the condition of thick overlock, turning sewing and the like, the cooperation gap of needle and shuttle tip increases.
[0005] To achieve the above object, the utility model provides a sewing machine shuttle, comprising:
[0006] The shuttle body is provided with a rotating center;
[0007] The needle is used for sewing cloth in cooperation with the shuttle body;
[0008] The shuttle tip is arranged on the shuttle body and is used for hooking the sewing thread on the needle;
[0009] The first elastic needle piece is fixed on the outer side wall of the shuttle body through the first screw and the second screw at both ends respectively, and is used for limiting the deflection amplitude of the needle to the direction close to the rotating center of the shuttle body;
[0010] The second elastic needle piece is fixed on the outer side wall of the shuttle body through the third screw and the fourth screw at both ends respectively, and is used for limiting the deflection amplitude of the needle to the direction away from the rotating center of the shuttle body.
[0011] Preferably, the outer side wall of the rotating hook body is provided with a limiting notch, which is arc-shaped as a whole.
[0012] Preferably, the side surface of the limiting notch is provided with a first connecting hole, which is threadedly connected with the second screw.
[0013] Preferably, the side surface of the limiting notch is provided with a second connecting hole, which is threadedly connected with the fourth screw.
[0014] Preferably, the first elastic needle piece is provided with a first matching hole and a second matching hole, and the second elastic needle piece is provided with a third matching hole and a fourth matching hole, the second matching hole and the third matching hole are used for penetrating the second screw, and the first matching hole and the fourth matching hole are used for penetrating the fourth screw.
[0015] Preferably, the diameter of the first matching hole is greater than that of the fourth matching hole, and the diameter of the third matching hole is greater than that of the second matching hole.
[0016] Preferably, the inner side of the rotating hook body is coaxially provided with a mounting rod, and a bobbin is sleeved on the mounting rod.
[0017] Preferably, the end of the mounting rod is provided with a rotating hook hook, which is used for limiting the position of the bobbin.
[0018] Preferably, the end of the rotating hook hook is provided with a first groove, and the end surface of the rotating hook body is provided with a second groove, the second groove cooperates with the first groove to form a threading hole, and the threading hole is used for guiding the sewing thread on the bobbin.
[0019] A sewing machine comprises the rotating hook as described in any one of the above.
[0020] With respect to the above background, the rotating hook of the sewing machine has the following beneficial effects: according to the relative position of the needle after entering the rotating hook body, the second screw and the fourth screw are screwed, the first elastic needle piece and the second elastic needle piece are adjusted to appropriate positions to limit the deflection amplitude of the needle, the cooperation gap between the needle and the rotating hook tip is accurately limited, the cooperation error between the needle and the rotating hook tip is controlled within the allowable range, even if the needle is close to the outer side surface of the first elastic needle piece or the inner side surface of the second elastic needle piece when the rotating hook tip hooks the sewing thread, the rotating hook tip can always hook the sewing thread on the needle, the probability of needle skipping is effectively reduced, and the quality of the sewing product is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below only illustrate a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person of ordinary skill in the art without creative labor should be within the protection scope of the present application.
[0022] Figure 1 A perspective view of the rotary hook of the sewing machine provided in the embodiments of the present application is shown in the figure.
[0023] Figure 2 A top view of the rotary hook of the sewing machine provided in the embodiments of the present application is shown in the figure.
[0024] Figure 3 A perspective view of the rotary hook body provided in the embodiments of the present application is shown in the figure.
[0025] Figure 4 A perspective view of the first elastic needle piece provided in the embodiments of the present application is shown in the figure.
[0026] Figure 5 A perspective view of the second elastic needle piece provided in the embodiments of the present application is shown in the figure.
[0027] Figure 6 A plane schematic view when the needle enters the rotary hook body provided in the embodiments of the present application is shown in the figure.
[0028] Figure 7 A plane schematic view when the needle cooperates with the rotary hook point provided in the embodiments of the present application is shown in the figure.
[0029] Figure 8 A plane schematic view when the needle leaves the rotary hook body provided in the embodiments of the present application is shown in the figure.
[0030] Specifically, 1-rotary hook body; 2-rotary hook hook; 3-rotary hook point; 4-mounting rod; 5-first elastic needle piece; 501-first cooperation hole; 502-second cooperation hole; 6-second elastic needle piece; 601-third cooperation hole; 602-fourth cooperation hole; 7-first screw; 8-second screw; 9-third screw; 10-fourth screw; 11-limiting notch; 12-needle. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person of ordinary skill in the art without creative labor should be within the protection scope of the present application.
[0032] In order to make the person skilled in the art better understand the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.
[0033] As shown in Figure 1 and Figure 2 To achieve the above object, the utility model provides a sewing machine rotating shuttle, it includes: rotating shuttle body 1, needle 12 and rotating shuttle tip 3, wherein, needle 12 is used to cooperate rotating shuttle body 1 and sews cloth, rotating shuttle tip 3 is arranged on rotating shuttle body 1 and is used to hook the thread on needle 12, specifically, in the process of rotating, needle 12 enters rotating shuttle body 1 along the axis direction of rotating shuttle body 1, and the thread on needle 12 is hooked by rotating shuttle tip 3.
[0034] The left end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the first screw 7, and the right end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the second screw 8. Specifically, the left end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the first screw 7, and the first screw 7 is not adjusted after fixing the left end of the first elastic needle piece 5. The right end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the second screw 8, and the distance between the right end of the first elastic needle piece 5 and the outer side wall of the rotating shuttle body 1 can be adjusted by rotating the second screw 8, so as to limit the deflection amplitude of the needle 12 in the direction close to the rotation center of the rotating shuttle body 1.
[0035] The left end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the first screw 7, and the right end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the second screw 8. Specifically, the left end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the first screw 7, and the first screw 7 is not adjusted after fixing the left end of the first elastic needle piece 5. The right end of the first elastic needle piece 5 is fixed on the outer side wall of the rotating shuttle body 1 by the second screw 8, and the distance between the right end of the first elastic needle piece 5 and the outer side wall of the rotating shuttle body 1 can be adjusted by rotating the second screw 8, so as to limit the deflection amplitude of the needle 12 in the direction close to the rotation center of the rotating shuttle body 1.
[0036] It should be noted that the first elastic needle piece 5 and the second elastic needle piece 6 are both arc-shaped as a whole. In the rotating process of the rotating shuttle body 1, the needle 12 enters the rotating shuttle body 1 from the left end of the first elastic needle piece 5 and the second elastic needle piece 6. At this time, the needle 12 does not contact the outer side wall of the first elastic needle piece 5 and the inner side wall of the second elastic needle piece 6, so as to ensure that the needle 12 can smoothly enter the gap between the first elastic needle piece 5 and the second elastic needle piece 6.
[0037] In use, during the rotation of the hook body 1, the needle 12 enters the hook body 1 along the axial direction of the hook body 1, the tip of the needle 12 moves from above the hook tip 3 to below the hook tip 3, and the needle 12 moves relative to the hook body 1 to the position of the hook tip 3, the hook tip 3 continues to rotate with the hook body 1 until the hook tip 3 hooks the suture on the needle 12, the needle 12 leaves the hook body 1, and a suture step is completed. The deflection angle of the needle 12 is limited by the first elastic needle piece 5 and the second elastic needle piece 6, the cooperation gap between the needle 12 and the hook tip 3 is accurately limited, the hook tip 3 can always hook the suture on the needle 12, the probability of needle skipping is reduced, the success rate of the hook 2 is improved, and the quality of the sewing product is improved.
[0038] As shown in Figure 3 An embodiment of the utility model, the outer side wall of hook body 1 is equipped with limit gap 11, limit gap 11 is overall arc shape, limit gap 11 is concave in the outer side wall of the hook body 1 that is provided, and limit gap 11 provides greater adjustment space for the first elastic needle piece 5 and the second elastic needle piece 6, and then ensure that the first elastic needle piece 5 and the second elastic needle piece 6 are in the adjustable range, accurately limit the cooperation gap between the needle 12 and the hook tip 3, and then control the cooperation error between the needle 12 and the hook tip 3 within the allowable range.
[0039] Need to explain, the side of limit gap 11 is equipped with first connecting hole, first connecting hole is screwed with second screw 8, when forwardly screwing second screw 8, second screw 8 further holds the right end of first elastic needle piece 5, makes the middle part and right end of first elastic needle piece 5 move to the direction close to the rotation center of hook body 1, when reversely screwing second screw 8, second screw 8 reduces the holding effect to the right end of first elastic needle piece 5, makes the middle part and right end of first elastic needle piece 5 move to the direction away from the rotation center of hook body 1, thereby flexibly adjusting first elastic needle piece 5 to the appropriate position.
[0040] The side of limit gap 11 is equipped with second connecting hole, second connecting hole is screwed with fourth screw 10, and the adjustment mode of the second elastic needle piece 6 is same with the first elastic needle piece 5, when forwardly screwing third screw 9, third screw 9 further holds the left end of second elastic needle piece 6, makes the middle part and left end of second elastic needle piece 6 move to the direction close to the rotation center of hook body 1, when reversely screwing third screw 9, third screw 9 reduces the holding effect to the left end of second elastic needle piece 6, makes the middle part and left end of second elastic needle piece 6 move to the direction away from the rotation center of hook body 1, thereby flexibly adjusting second elastic needle piece 6 to the appropriate position.
[0041] As shown in Figure 4 And Figure 5As shown, in one embodiment of the utility model, first elastic needle piece 5 is equipped with first cooperation hole 501 and second cooperation hole 502, second elastic needle piece 6 is equipped with third cooperation hole 601 and fourth cooperation hole 602, and second cooperation hole 502 and fourth cooperation hole 602 are used for the second screw 8, wherein the inner diameter of second cooperation hole 502 is less than the end of second screw 8, and the inner diameter of fourth cooperation hole 602 is greater than the end of second screw 8, so as to ensure that the position of second elastic needle piece 6 is not affected when adjusting the position of first elastic needle piece 5 by screwing second screw 8. At the same time, first cooperation hole 501 and third cooperation hole 601 are used for the fourth screw 10, the inner diameter of first cooperation hole 501 is greater than the end of third screw 9, and the inner diameter of third cooperation hole 601 is less than the end of second screw 8, so as to ensure that the position of first elastic needle piece 5 is not affected when adjusting the position of second elastic needle piece 6 by screwing third screw 9.
[0042] In one embodiment of the utility model, the inner side of the rotating shuttle body 1 is coaxially provided with the mounting rod 4, the mounting rod 4 is sleeved with a bobbin (not shown in the figure), and the bobbin needs to be wound with a bottom thread. The face thread on the needle 12 cooperates to achieve sewing. At the same time, the rotating shuttle hook 2 is arranged at the upper end of the mounting rod 4, the rotating shuttle hook 2 is in the form of a rod as a whole, and is connected to the upper end of the mounting rod 4 in a clamping manner. The position of the bobbin is limited by the rotating shuttle hook 2, and the bobbin is limited in the rotating shuttle body 1.
[0043] In addition, the upper end of the rotating shuttle hook 2 is provided with a first groove, and the end face of the rotating shuttle body 1 is provided with a second groove. The second groove cooperates with the first groove to form a threading hole. The thread on the bobbin is guided through the threading hole, so that the bottom thread on the bobbin can be stably pulled out to ensure the stability of the rotating shuttle body 1 during operation.
[0044] As shown in Figure 6 , Figure 7 and Figure 8 , when the utility model is used, in the rotating process of the rotating shuttle body 1, the needle 12 enters the rotating shuttle body 1 along the axial direction of the rotating shuttle body 1, the tip of the needle 12 moves from above the rotating shuttle tip 3 to below the rotating shuttle tip 3, enters the gap between the first elastic needle piece 5 and the second elastic needle piece 6, and the needle 12 moves relative to the rotating shuttle body 1 to the position of the rotating shuttle tip 3. The rotating shuttle tip 3 continues to rotate with the rotating shuttle body 1 until the thread on the needle 12 is hooked, the needle 12 leaves the gap between the first elastic needle piece 5 and the second elastic needle piece 6, and one thread sewing step is completed.
[0045] When the needle skipping phenomenon occurs, the second screw 8 is screwed to adjust the distance between the right end of the first elastic needle piece 5 and the outer side wall of the rotating hook body 1, so as to limit the deflection range of the needle 12 towards the rotating center of the rotating hook body 1, that is, even if the needle 12 is close to the outer side of the first elastic needle piece 5, the rotating hook tip 3 can still hook the sewing thread on the needle 12; the third screw 9 is screwed to adjust the distance between the left end of the second elastic needle piece 6 and the outer side wall of the rotating hook body 1, so as to limit the deflection range of the needle 12 away from the rotating center of the rotating hook body 1, that is, even if the needle 12 is close to the inner side of the second elastic needle piece 6, the rotating hook tip 3 can still hook the sewing thread on the needle 12. At this time, the cooperation error between the needle 12 and the rotating hook tip 3 is within the allowable range, and the needle skipping phenomenon no longer occurs.
[0046] In summary, by screwing the second screw 8 and the fourth screw 10, the first elastic needle piece 5 and the second elastic needle piece 6 are adjusted to appropriate positions to limit the deflection range of the needle 12, the cooperation gap between the needle 12 and the rotating hook tip 3 is accurately limited, the cooperation error between the needle 12 and the rotating hook tip 3 is always within the allowable range, so as to ensure that the rotating hook tip 3 can always hook the sewing thread on the needle 12, thereby reducing the probability of needle skipping, improving the success rate of the rotating hook hooking 2 thread, and improving the quality of the sewing product.
[0047] In addition to the above sewing machine rotating hook, the utility model also provides a sewing machine comprising the above-mentioned sewing machine rotating hook disclosed in the embodiment, and the structures of other parts of the sewing machine refer to the prior art, which will not be described herein.
[0048] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.
[0049] The principle and implementation mode of the utility model are described by applying specific examples in the present document, and the above-mentioned example description is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model.
Claims
1. A sewing machine shuttle characterized by, include: Hook body; A needle, used for cooperating with the rotary hook body to sew fabric; A hook tip is provided on the hook body and is used to hook and grab the suture on the needle; a first elastic needle piece, the two ends of which are fixed to the outer wall of the rotary hook body by a first screw and a second screw respectively, for limiting the amplitude of the needle deflecting toward the direction close to the rotation center of the rotary hook body; The second elastic needle piece has two ends fixed to the outer wall of the rotary hook body by a third screw and a fourth screw respectively, and is used to limit the amplitude of the needle deflecting away from the rotation center of the rotary hook body.
2. A sewing machine hook as claimed in claim 1, wherein The outer side wall of the rotary hook body is provided with a limiting notch, and the limiting notch is in an arc shape as a whole.
3. A sewing machine hook as claimed in claim 2, wherein A first connecting hole is provided on the side surface of the limiting notch, and the first connecting hole is threadedly connected to the second screw.
4. The rotary hook of claim 2 wherein: A second connecting hole is provided on the side surface of the limiting notch, and the second connecting hole is threadedly connected to the fourth screw.
5. A sewing machine shuttle according to any one of claims 1-4, characterized in that The first elastic needle piece is provided with a first matching hole and a second matching hole, and the second elastic needle piece is provided with a third matching hole and a fourth matching hole. The second matching hole and the third matching hole are both used to penetrate the second screw, and the first matching hole and the fourth matching hole are both used to penetrate the fourth screw.
6. A sewing machine hook as claimed in claim 5 wherein, A diameter of the first fitting hole is larger than a diameter of the fourth fitting hole, and a diameter of the third fitting hole is larger than a diameter of the second fitting hole.
7. The rotary hook of claim 1 wherein: A mounting rod is coaxially arranged on the inner side of the rotary hook body, and a bobbin is sleeved on the mounting rod.
8. A sewing machine hook as claimed in claim 7, wherein A rotary hook is provided at the end of the mounting rod, and the rotary hook is used to limit the position of the bobbin.
9. A sewing machine hook as claimed in claim 8, wherein The end of the rotary hook is provided with a first groove, and the end surface of the rotary hook body is provided with a second groove. The second groove cooperates with the first groove to form a threading hole, and the threading hole is used to guide the sewing thread on the shuttle core.
10. A sewing machine characterized by comprising: The sewing machine hook comprises the hook according to any one of claims 1 to 9.