Sewing machine needle bar thread hook, pricking mechanism and sewing machine
By setting a thread-passing opening structure between the thread hook skirt and the thread hook body on the sewing machine needle bar, the difficulties and time-consuming problems of the hole-type threading method are solved, realizing convenient and stable thread winding and improving the operating efficiency of the sewing machine.
Patent Information
- Application Number
- CN202423300835.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing needle bar thread hook of sewing machines has a hole-type threading method, which makes threading difficult, especially for employees with poor eyesight, and is also time-consuming, affecting work efficiency.
A sewing machine needle bar thread hook is designed, which adopts a thread-passing opening structure between the thread hook body and the thread hook skirt. The top thread is directly inserted into the thread-passing opening from the end of the thread hook skirt, and is stably wound into the needle bar thread hook through the outer and inner thread parts, simplifying the threading process.
It improves the convenience and stability of threading, reduces threading time, and increases work efficiency, especially for operators with poor eyesight.
Smart Images
Figure CN223660392U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewing machine equipment technical field especially a kind of sewing machine needle bar thread hook, material mechanism of pricking and sewing machine. BACKGROUND
[0002] When the existing sewing machine carries out sewing work, it still needs to pass through needle bar thread hook before thread passes through needle, to reduce thread swing, improve sewing stability.Current needle bar thread hook often sets single or multiple threading holes to thread, and the scene frequency of threading is higher in sewing work, except the first time sewing threading, when replacing thread, sewing out-of-thread, broken thread and so on, all need to thread.The threading mode of hole type is not convenient enough, and it will consume a lot of time every time threading, for the staff with good eyesight, the threading process is relatively simple, but for the staff with poor eyesight, the threading process is more difficult, so the threading mode of hole type in prior art needs to be improved. SUMMARY
[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a sewing machine needle bar thread hook, a material mechanism of pricking and a sewing machine, to solve the problem of threading difficulty and low work efficiency caused by the threading mode of hole type on the needle bar thread hook in the prior art.
[0004] To achieve the above-mentioned purpose, the utility model provides a sewing machine needle bar thread hook, which is applied to sewing machine;Including thread hook main body and thread hook skirt, the thread hook skirt is arranged on the thread hook main body, and there is a gap between the thread hook skirt and the thread hook main body, which is a threading opening;Face thread is wound into needle bar thread hook through the threading opening.
[0005] Preferably, the thread hook main body is annular, the bottom end of the thread hook main body is provided with an extension part, one end of the thread hook skirt is fixed on the extension part, and the thread hook skirt extends in arc shape;The gap between the lower end surface of the thread hook main body and the upper end surface of the thread hook skirt is the threading opening.
[0006] Preferably, the extension radian of the thread hook skirt is greater than the annular radian of the thread hook main body, and the end of the thread hook skirt away from the extension part is located on the outside of the vertical projection of the thread hook main body.
[0007] Preferably, an outer thread containing part is formed on the outer side wall of the thread hook main body, and an inner thread containing part is formed on the inner side wall of the thread hook skirt, the face thread is wound into needle bar thread hook through the threading opening, and the face thread is located in the outer thread containing part and the inner thread containing part.
[0008] Preferably, the outer thread containing part and the inner thread containing part are in the same vertical plane.
[0009] To achieve the above object or other objects, the utility model discloses a kind of material piercing mechanism, applied to sewing machine;The material piercing mechanism includes lower bushing thread hook, needle bar and needle, and the lower bushing thread hook is arranged on the head of sewing machine, the needle bar is arranged in the head of sewing machine and can be lifted and lowered, and the needle is arranged at the bottom end of needle bar;Thread hole is opened on the needle;The needle bar is provided with the sewing machine needle bar thread hook described above, and the thread is threaded out from the lower bushing thread hook, and after being wound into needle bar thread hook through thread opening, it is threaded into the thread hole of needle.
[0010] Preferably, the thread hook body is provided with a mounting hole, the needle bar is provided with a needle bar connecting hole, and the needle bar connecting hole is aligned with the mounting hole and a fastener is arranged in the two holes.
[0011] Preferably, the needle bar connecting hole is a threaded hole, and the fastener is a screw or a bolt.
[0012] Preferably, the plane between the thread part of the lower bushing thread hook and the thread hole of the needle is located between the two ends of the thread hook skirt.
[0013] To achieve the above object or other objects, the utility model discloses a kind of sewing machine, including the sewing machine needle bar thread hook described above.
[0014] As described above, the sewing machine needle bar thread hook, material piercing mechanism and sewing machine of the utility model have the following beneficial effects:
[0015] 1. The sewing machine needle bar thread hook, material piercing mechanism and sewing machine of the utility model are provided with a thread hook skirt on the thread hook body, a thread opening is arranged between the thread hook body and the thread hook skirt, and the end of the thread hook skirt away from the thread hook body is located outside the vertical projection of the thread hook body. In this way, the thread can be directly swung from the end of the thread hook skirt into the thread opening, solving the problem of difficult threading process and time waste caused by the hole type threading method in the prior art, and improving the convenience of threading.
[0016] 2. The sewing machine needle bar thread hook, material piercing mechanism and sewing machine of the utility model are provided with an inner thread part and an outer thread part on the thread hook skirt and the thread hook body respectively, and the thread is located in the inner thread part and the outer thread part, thereby improving the stability of the thread and effectively preventing the thread from swinging out of the thread opening during the lifting of the needle bar. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is the space diagram of the sewing machine needle bar thread hook, material piercing mechanism and sewing machine of the utility model;
[0018] Figure 2 is the left view of the sewing machine needle bar thread hook of the utility model installed on the needle bar;
[0019] Figure 3 is the front view of the sewing machine needle bar thread hook installed on the needle bar of the utility model;
[0020] Figure 4 is the first angle space schematic view of the sewing machine needle bar thread hook of the utility model;
[0021] Figure 5 is the second angle space schematic view of the sewing machine needle bar thread hook of the utility model.
[0022] Explanation of reference signs:
[0023] 1, sewing machine head; 2, bobbin thread; 3, lower bushing thread hook; 4, needle bar thread hook; 41, mounting hole; 42, outer thread containing part; 43, inner thread containing part; 44, thread passing opening; 45, thread hook main body; 46, thread hook skirt; 47, extension part; 5, needle; 501, thread passing hole; 6, needle bar. DETAILED DESCRIPTION
[0024] The implementation of the utility model will be illustrated by specific embodiments below, and other advantages and effects of the utility model can be easily understood by those skilled in the art from the content disclosed in the specification.
[0025] It should be understood that the structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions of the implementation of the utility model, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like in the specification are only used for clear description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship, without substantial change of technical content, is also regarded as the scope of the implementation of the utility model.
[0026] As shown in Figures 1-5 The utility model provides a kind of sewing machine needle bar thread hook, it is applied to sewing machine;Including thread hook main body 45 and thread hook skirt 46, thread hook skirt 46 is set on the lower end surface of thread hook main body 45, the gap between thread hook skirt 46 and thread hook main body 45 is thread passing opening 44;Bobbin thread is wound into needle bar thread hook 4 by thread passing opening 44.
[0027] The sewing machine needle bar thread hook of the utility model relates to a sewing machine needle bar thread hook, the gap between the thread hook main body 45 and the thread hook skirt 46 is the thread passing opening 44, the face thread 2 is swung into the thread passing opening 44 from the end of the thread hook skirt 46 away from the thread hook main body 45, and the face thread 2 is wound into the needle bar thread hook 4, the threading convenience is improved, the working efficiency is improved, and the problems of long time consumption and low working efficiency in the threading mode of the prior art are reduced.
[0028] Preferably, as shown in Figure 4 、 Figure 5 , the thread hook main body 45 is annular, the bottom end of the thread hook main body 45 is provided with an extension part 47 extending in the axial direction, one end of the thread hook skirt 46 is fixed on the extension part 47, and the thread hook skirt 46 extends in an arc shape; the gap between the lower end face of the thread hook main body 45 and the upper end face of the thread hook skirt 46 is the thread passing opening 44. In this embodiment, the thread hook main body 45, the thread hook skirt 46 and the extension part 47 are integrated. In other embodiments, the thread hook main body 45, the thread hook skirt 46 and the extension part 47 can also be separate parts. The needle 5 and the needle bar thread hook 4 are arranged on the needle bar 6, and the needle bar 6 and the lower bushing thread hook 3 are arranged in the sewing machine head 1.
[0029] Preferably, as shown in Figure 4 、 Figure 5 , the extension arc of the thread hook skirt 46 is greater than the annular arc of the thread hook main body 45, and the end of the thread hook skirt 46 away from the extension part 47 is located outside the vertical projection of the thread hook main body 45. In this embodiment, the thread hook main body 45 is annular, the thread hook skirt 46 extends in an arc shape, and the extension arc of the thread hook skirt 46 is greater than the annular arc of the thread hook main body 45, so that there is a fork between the end of the thread hook skirt 46 away from the thread hook main body 45 and the outer peripheral surface of the thread hook main body 45. When the operator swings the face thread 2 along the outer peripheral surface of the thread hook main body 45, the face thread 2 easily enters the fork and then easily enters the thread passing opening 44, so that the face thread 2 is wound onto the needle bar thread hook 4, and the operation is convenient and fast.
[0030] Preferably, as shown in Figure 4 、 Figure 5As shown, the outer side wall of the thread hook body 45 is provided with an outer thread containing portion 42, and the inner side wall of the thread hook skirt 46 is provided with an inner thread containing portion 43. The thread 2 is threaded out of the lower bushing thread hook 3, passes through the thread passing opening 44, is wound into the needle bar thread hook 4, and is located in the outer thread containing portion 42 and the inner thread containing portion 43, and then is threaded into the thread passing hole 501 of the needle 5. In the embodiment, the outer thread containing portion 42 and the inner thread containing portion 43 are both fan-shaped notches. The curvature of the upper end of the outer thread containing portion 42 is smaller than the curvature of the lower end, and the outer thread containing portion 42 has a radial extension slope from top to bottom. The thread 2 is tightly attached to the surface of the outer thread containing portion 42. The thread 2 is located in the outer thread containing portion 42 and the inner thread containing portion 43, which reduces the contact stress between the thread 2 and the needle bar thread hook 4 and limits the movement amplitude of the thread 2, thereby effectively ensuring the stability of the thread 2 during the sewing process.
[0031] Preferably, as shown in the drawings, Figures 3-5 As shown, the outer thread containing portion 42 and the inner thread containing portion 43 are located in the same vertical plane. Since the thread 2 is arranged in the outer thread containing portion 42 and the inner thread containing portion 43 at the same time, the vertical plane in which the outer thread containing portion 42 and the inner thread containing portion 43 are located is the running track of the thread 2. Since the plane in which the connecting line between the thread passing portion of the lower bushing thread hook 3 and the thread passing hole 501 of the needle 5 is located is also the running track of the thread 2, the connecting line between the outer thread containing portion 42, the inner thread containing portion 43, the thread passing portion of the lower bushing thread hook 3 and the thread passing hole 501 of the needle 5 are located in the same vertical plane, thereby ensuring the smooth transportation of the thread 2 during the sewing process and avoiding thread jamming caused by excessive bending.
[0032] To achieve the above object or other objects, the utility model also discloses a material pricking mechanism which is applied to a sewing machine. The material pricking mechanism comprises a lower bushing thread hook 3, a needle bar 6 and a needle 5. The lower bushing thread hook 3 is arranged on the sewing machine head 1. The needle bar 6 is arranged in the sewing machine head 1 in a liftable manner. The needle 5 is arranged at the bottom end of the needle bar 6. The needle 5 is provided with a thread passing hole 501. The needle bar 6 is provided with the above-mentioned sewing machine needle bar thread hook. The thread is threaded out of the lower bushing thread hook 3, is wound into the needle bar thread hook 4 through the thread passing opening 44, and is then threaded into the thread passing hole 501 of the needle 5.
[0033] Preferably, as shown in the drawings, Figures 1-5 As shown, the thread hook body 45 is provided with a mounting hole 41. The needle bar 6 is provided with a needle bar connecting hole. The needle bar connecting hole is aligned with the mounting hole 41, and a fastener is arranged in the needle bar connecting hole and the mounting hole 41. In the embodiment, the needle bar connecting hole is a threaded hole, and the fastener is a screw or a bolt. In other embodiments, the needle bar connecting hole can also be a through hole, and the fastener can be a positioning pin or the like, as long as the needle bar thread hook 4 can be fixed on the needle bar 6.
[0034] Preferably, as shown in the drawings, Figures 3-5As shown, the plane where the line connecting the threading part of the lower bushing thread hook 3 and the threading hole 501 of the needle 5 is located between the two ends of the thread hook skirt 46. In this embodiment, the plane where the line connecting the threading part of the lower bushing thread hook 3 and the threading hole 501 of the needle 5 is located is the running track of the face thread 2 in the threading opening 44, and the running track of the face thread 2 in the threading opening 44 is located between the two ends of the thread hook skirt 46, so as to ensure that the face thread 2 can smoothly pass through the needle bar thread hook 4 during the operation of the sewing machine.
[0035] To achieve the above object or other objects, the utility model discloses a sewing machine needle bar thread hook.
[0036] The sewing machine needle bar thread hook, the material pricking mechanism and the sewing machine have the following working principles:
[0037] Firstly, the operator produces and assembles each component according to the attached Figures 1-5 and the description of each component;
[0038] Secondly, the operator aligns the needle bar connecting hole and the mounting hole 41, and simultaneously inserts a fastener into the needle bar connecting hole and the mounting hole 41, so as to fix the needle bar thread hook 4 on the needle bar 6.
[0039] Thirdly, the operator threads the face thread 2 out of the lower bushing thread hook 3 of the sewing machine, and then threads the face thread 2 into the needle bar thread hook 4 through the threading opening 44, and the face thread 2 is located in the outer thread portion 42 and the inner thread portion 43.
[0040] The sewing machine needle bar thread hook, the material pricking mechanism and the sewing machine have the following working principles:
[0041] In conclusion, the utility model effectively overcomes the shortcomings of the prior art and has high industrial utilization value.
[0042] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.
Claims
1. A sewing machine needle bar thread hook, used in a sewing machine; characterized in that: It includes a hook body (45) and a hook skirt (46). The hook skirt (46) is disposed on the hook body (45). There is a gap between the hook skirt (46) and the hook body (45) as a thread passage opening (44). The thread passes through the thread passage opening (44) and is wound onto the needle bar hook (4).
2. The sewing machine needle bar hook according to claim 1, characterized in that: The hook body (45) is ring-shaped, and an extension part (47) is provided at the bottom end of the hook body (45). One end of the hook skirt (46) is fixed on the extension part (47), and the hook skirt (46) extends in an arc shape. The gap between the lower end face of the hook body (45) and the upper end face of the hook skirt (46) is a line-passing opening (44).
3. The sewing machine needle bar hook according to claim 2, characterized in that: The extension arc of the hook skirt (46) is greater than the annular arc of the hook body (45), and the end of the hook skirt (46) away from the extension (47) is located on the outside of the hook body (45) projected in the vertical direction.
4. The sewing machine needle bar hook according to claim 2, characterized in that: The outer wall of the hook body (45) is provided with an outer containment thread portion (42), and the inner wall of the hook skirt (46) is provided with an inner containment thread portion (43). The face thread (2) passes through the thread opening (44) and is wound into the needle bar hook (4), and the face thread (2) is located in the outer containment thread portion (42) and the inner containment thread portion (43).
5. The sewing machine needle bar hook according to claim 4, characterized in that: The outer containment line portion (42) and the inner containment line portion (43) are in the same vertical plane.
6. A thread-piercing mechanism, applied in a sewing machine; the thread-piercing mechanism includes a lower liner hook (3), a needle bar (6), and a needle (5), wherein the lower liner hook (3) is disposed on the sewing machine head (1), the needle bar (6) is vertically and flexibly disposed in the sewing machine head (1), and the needle (5) is disposed at the bottom end of the needle bar (6); the needle (5) has a thread-passing hole (501); characterized in that: The needle bar (6) is provided with a sewing machine needle bar hook as described in any one of claims 1-5. The top thread passes through the lower bushing hook (3), goes through the thread opening (44) and is wound around the needle bar hook (4), and then passes through the thread hole (501) of the needle (5).
7. The feeding mechanism according to claim 6, characterized in that: The hook body (45) has an installation hole (41), and the needle bar (6) has a needle bar connection hole. The needle bar connection hole is aligned with the installation hole (41), and a fastener is inserted through both of them.
8. The feeding mechanism according to claim 7, characterized in that: The needle rod connection hole is a threaded hole, and the fastener is a screw or bolt.
9. The feeding mechanism according to claim 6, characterized in that: The plane where the thread-passing part of the lower bushing hook (3) and the thread-passing hole (501) of the needle (5) are located is between the two ends of the hook skirt (46).
10. A sewing machine, characterized in that: Includes the sewing machine needle bar and thread hook as described in any one of claims 1-5.