Needle threading device of automatic sewing machine
By designing an automated sewing machine needle threading device, using components such as thread plates, thumb cylinders and electric telescopic rods, automatic needle threading of sewing threading is achieved, which solves the problem of the lack of automatic threading device of existing sewing machines and improves operating efficiency and convenience.
Patent Information
- Application Number
- CN202421391267.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The existing sewing machines lack automatic threading devices, which leads to manual threading in case of broken threads and needles, which is time-consuming and labor-intensive, especially for people with poor vision or the elderly.
An automated sewing machine needle threading device is designed, including the sewing machine body, sewing needle, thread clamp plate, thumb cylinder, clamp block and fixing mechanism. Through the cooperation of the electric telescopic rod and slider, automatic needle threading of sewing thread is achieved.
It realizes fast and labor-saving automatic needle threading operation of sewing thread, reducing the time and energy of manual operation, and is especially suitable for poor vision or elderly people.
Smart Images
Figure CN222524878U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sewing machines, in particular to a needle threading device for an automatic sewing machine. Background Art
[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing material are interwoven or sewn together.
[0003] Most of the current sewing machines are not equipped with automatic threading devices. In the event of thread breakage or needle breakage, manual threading is required, which is time-consuming and laborious, and causes great trouble, especially for people with poor eyesight or the elderly. Utility Model Content
[0004] The utility model provides a needle threading device for an automatic sewing machine, aiming to solve the problem that the current sewing machine cannot perform automatic threading processing.
[0005] The utility model is implemented as follows: an automatic sewing machine threading device comprises: a sewing machine body and a sewing needle arranged on the sewing machine body, wherein the sewing needle is provided with a threading port; two connecting plates arranged at one side of the sewing machine body; a thread clamping plate and a thumb cylinder respectively mounted on the two connecting plates, wherein the thread clamping plate and the thumb cylinder are arranged opposite to each other; two clamping blocks respectively mounted on the thumb cylinder; a group of fixing mechanisms each arranged on any of the connecting plates for fixing the sewing thread; and a storage mechanism arranged at one side of the sewing machine body for storing the thread clamping plate and the thumb cylinder.
[0006] Preferably, a support plate is provided on one side of the sewing machine body, the support plate is slidably connected to the two connecting plates, and two first electric telescopic rods are fixedly installed on one side of the support plate, and the two first electric telescopic rods are respectively fixedly connected to the two connecting plates.
[0007] Preferably, two slide grooves are provided on one side of the support plate, two slide rods are fixedly installed in the two slide grooves, sliders are slidably installed on the two slide rods, and the two sliders are fixedly connected to the two connecting plates respectively.
[0008] Preferably, the fixing mechanism comprises: a second electric telescopic rod fixedly mounted on the connecting plate; a connecting plate mounted on the second electric telescopic rod; and a positioning block fixedly mounted on one side of the connecting plate, wherein the positioning block is located on one side of the wire clamping plate.
[0009] Preferably, both the positioning block and the clamping block are detachably provided with anti-slip parts, and the material of the anti-slip parts is rubber.
[0010] Preferably, the storage mechanism includes: two mounting plates fixedly mounted on one side of the sewing machine body; a one-way screw rotatably mounted on the two mounting plates, a guide block being threadedly sleeved on the one-way screw; an L-shaped plate fixedly mounted on the guide block, a third electric telescopic rod being fixedly mounted on the L-shaped plate, and the third electric telescopic rod being fixedly connected to the support plate; a motor fixedly mounted on one side of the sewing machine body, and an output shaft of the motor being fixedly connected to the one-way screw.
[0011] Preferably, a protective cover is hinged on one side of the sewing machine body, the bottom of the protective cover is open, and the protective cover is buckled on the one-way screw and the motor.
[0012] Preferably, Velcro is installed on the clamping block, the positioning block and the two anti-slip parts, and a plurality of Velcros are bonded to each other.
[0013] Compared with the related art, the automatic sewing machine needle threading device provided by the utility model has the following beneficial effects:
[0014] The threading port is passed through the thread clamping plate, and then the clamping block clamps the sewing thread out of the thread clamping plate, so that the automatic threading of the sewing thread is realized, and the operation is relatively quick. The connecting plate is slidably guided by the slider to ensure that the connecting plate slides smoothly, which is conducive to the subsequent threading operation. The sewing thread is limited and fixed by the positioning block to ensure that it will not fall off the thread clamping plate, which is conducive to the subsequent threading. The anti-slip part can effectively prevent the sewing thread from slipping, which is conducive to the fixation and clamping of the sewing thread.
[0015] Compared with the prior art, the automatic sewing machine threading device provided by the present invention mainly comprises a sewing machine body and a sewing needle arranged on the sewing machine body, wherein the sewing needle is provided with a threading port; two connecting plates arranged on one side of the sewing machine body; a thread clamping plate and a thumb cylinder respectively mounted on the two connecting plates, wherein the thread clamping plate and the thumb cylinder are arranged opposite to each other; two clamping blocks respectively mounted on the thumb cylinder; a group of fixing mechanisms each arranged on any of the connecting plates for fixing the sewing thread; and a storage mechanism arranged on one side of the sewing machine body for storing the thread clamping plate and the thumb cylinder, so that the automatic sewing machine threading device can thread the sewing thread more quickly, and has the advantage of saving time and effort in operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of a needle threading device for an automatic sewing machine provided by the utility model;
[0017] Figure 2 It is an assembly diagram of the sewing needle, the thread clamping plate and the thumb cylinder provided by the utility model;
[0018] Figure 3 It is an assembly diagram of the middle support plate and the third electric telescopic rod provided by the utility model;
[0019] Figure 4 for Figure 2 An enlarged structural diagram of part A shown in FIG.
[0020] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.
[0021] Figure numerals: 1. sewing machine body; 2. sewing needle; 3. threading port; 4. connecting plate; 5. thread clamping plate; 6. thumb cylinder; 7. clamping block; 8. support plate; 9. first electric telescopic rod; 10. slide groove; 11. slide bar; 12. slide block; 13. second electric telescopic rod; 14. connecting plate; 15. positioning block; 16. anti-slip part; 17. mounting plate; 18. one-way screw; 19. guide block; 20. L-shaped plate; 21. third electric telescopic rod; 22. motor; 23. protective cover. DETAILED DESCRIPTION
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0024] The utility model provides a needle threading device for an automatic sewing machine, such as Figure 1-5As shown, the threading device of the automatic sewing machine comprises: a sewing machine body 1 and a sewing needle 2 arranged on the sewing machine body 1, wherein the sewing needle 2 is provided with a threading port 3; two connecting plates 4 arranged on one side of the sewing machine body 1; a thread clamping plate 5 and a thumb cylinder 6 respectively mounted on the two connecting plates 4, wherein the thread clamping plate 5 is arranged opposite to the thumb cylinder 6; two clamping blocks 7 respectively mounted on the thumb cylinder 6; a group of fixing mechanisms each arranged on any of the connecting plates 4 for fixing the sewing thread; and a storage mechanism arranged on one side of the sewing machine body 1 for storing the thread clamping plate 5 and the thumb cylinder 6.
[0025] It should be noted that, although a small number of household sewing machines are currently equipped with automatic threading devices, such as some flat-bed sewing machines, these devices have a relatively low degree of automation. This type of device requires the cooperation of two hands when threading. First, hang the thread on the threading device, then hold the thread with one hand, and use the other hand to drive the device to thread the thread into the hook. After threading is completed, only a section of the thread enters the needle hole, and the thread needs to be pulled out by hand. The overall operation is relatively complicated and time-consuming. It can play a role in assisting threading but cannot achieve the purpose of fast threading.
[0026] In this embodiment, when the sewing thread needs to be inserted into the sewing needle 2, the sewing thread is firstly put into the V-shaped notch of the thread clamping plate 5 so that the sewing thread is close to the thread clamping plate 5, and then the positioning block 15 is used to fix the sewing thread, and then the third electric telescopic rod 21 is started to drive the support plate 8 to slide, so that the thread clamping plate 5 slides and is arranged at the same level as the threading opening 3 of the sewing needle 2;
[0027] Then, the two first electric telescopic rods 9 are started, so that the two first electric telescopic rods 9 drive the thread clamping plate 5 and the thumb cylinder 6 to slide, so that they are close to each other. At the same time, since the thread clamping plate 5 and the threading port 3 of the sewing needle 2 are arranged at the same level, when the thread clamping plate 5 slides, the thread clamping plate 5 slides and passes through the threading port 3. At the same time, the thumb cylinder 6 drives the clamping block 7 to slide and contact the sewing needle 2. When the thread clamping plate 5 passes through the threading port 3, the thumb cylinder 6 is started, so that the thumb cylinder 6 drives the clamping block 7 to slide, so that the clamping block 7 clamps the thread clamping plate 5, and then the positioning block 15 is moved away from the thread clamping plate 5. The first electric telescopic rod 9 is started, so that the first electric telescopic rod 9 drives the clamping block 7 to slide, and then the clamping block 7 clamps the sewing thread out of the thread clamping plate 5, completing the automatic threading of the sewing thread, and the operation is relatively quick.
[0028] In a further preferred embodiment of the utility model, a support plate 8 is provided on one side of the sewing machine body 1, and the support plate 8 is slidably connected to the two connecting plates 4. Two first electric telescopic rods 9 are fixedly installed on one side of the support plate 8, and the two first electric telescopic rods 9 are respectively fixedly connected to the two connecting plates 4.
[0029] In this embodiment, after the threading operation is completed, the first electric telescopic rod 9 is started to slide the thread clamping plate 5 and the clamping block 7 away from the sewing needle 2, thereby facilitating the subsequent storage operation thereof.
[0030] In a further preferred embodiment of the utility model, two slide grooves 10 are opened on one side of the support plate 8, two slide rods 11 are fixedly installed in the two slide grooves 10, and sliders 12 are slidably installed on the two slide rods 11, and the two sliders 12 are fixedly connected to the two connecting plates 4 respectively.
[0031] In this embodiment, when the first electric telescopic rod 9 drives the connecting plate 4 to slide, the connecting plate 4 drives the slider 12 to slide along the slide rod 11, thereby guiding the connecting plate 4 to slide, ensuring that the connecting plate 4 slides smoothly, which is beneficial to the subsequent threading operation.
[0032] In a further preferred embodiment of the utility model, the fixing mechanism includes: a second electric telescopic rod 13 fixedly mounted on the connecting plate 4; a connecting plate 14 mounted on the second electric telescopic rod 13; and a positioning block 15 fixedly mounted on one side of the connecting plate 14, wherein the positioning block 15 is located on one side of the wire clamping plate 5.
[0033] In this embodiment, after the sewing thread is put on the thread holding plate 5, the sewing thread is made close to the thread holding plate 5, and then the second electric telescopic rod 13 is started, so that the second electric telescopic rod 13 drives the connecting plate 14 to drive the positioning block 15 to slide, so that the positioning block 15 slides and contacts the thread holding plate 5, and then the positioning block 15 limits and fixes the sewing thread to ensure that it will not separate from the thread holding plate 5, which is conducive to the subsequent needle threading process.
[0034] In a further preferred embodiment of the present invention, the positioning block 15 and the clamping block 7 can be detachably mounted with an anti-slip member 16, and the material of the anti-slip member 16 is rubber.
[0035] In this embodiment, the anti-slip member 16 is provided to effectively prevent the sewing thread from slipping, thereby facilitating the fixing and clamping operations of the sewing thread.
[0036] In a further preferred embodiment of the utility model, the storage mechanism includes: two mounting plates 17 fixedly mounted on one side of the sewing machine body 1; a one-way screw 18 rotatably mounted on the two mounting plates 17, and a guide block 19 is threadedly sleeved on the one-way screw 18; an L-shaped plate 20 fixedly mounted on the guide block 19, and a third electric telescopic rod 21 is fixedly mounted on the L-shaped plate 20, and the third electric telescopic rod 21 is fixedly connected to the support plate 8; a motor 22 fixedly mounted on one side of the sewing machine body 1, and the output shaft of the motor 22 is fixedly connected to the one-way screw 18.
[0037] In this embodiment, when it is necessary to store the wire clamping plate 5 and the thumb cylinder 6, first start the third electric telescopic rod 21, so that the third electric telescopic rod 21 drives the support plate 8 to slide, so that the support plate 8 slides away from the sewing needle 2, and then start the motor 22, so that the output shaft of the motor 22 drives the one-way screw 18 to rotate, so that the one-way screw 18 drives the guide block 19 to slide, so that the guide block 19 drives the third electric telescopic rod 21 to slide up, and then the wire clamping plate 5 and the thumb cylinder 6 slide up synchronously, so that they slide away from the sewing needle 2, when the wire clamping plate 5 slides close to the outer shell of the sewing machine body 1, turn off the motor 22 to complete the storage operation of the wire clamping plate 5 and the thumb cylinder 6.
[0038] In a further preferred embodiment of the utility model, a protective cover 23 is hinged on one side of the sewing machine body 1 , the bottom of the protective cover 23 is open, and the protective cover 23 is buckled on the one-way screw 18 and the motor 22 .
[0039] In this embodiment, the motor 22 and the one-way screw 18 are protected by the protective cover 23 to ensure that people will not touch the one-way screw 18. The protective effect is good and the safety of use is high.
[0040] In a further preferred embodiment of the utility model, Velcro is installed on the clamping block 7, the positioning block 15 and the two anti-slip parts 16, and a plurality of Velcros are bonded together.
[0041] In this embodiment, when the anti-slip component 16 needs to be replaced, it only needs to be torn off to separate the two Velcro strips from each other, so replacement is relatively quick.
[0042] In summary, the device can thread the sewing thread more quickly, and the operation is more time-saving and labor-saving.
[0043] Compared with the related technology, the present device passes through the threading port 3 through the thread clamping plate 5, and then uses the clamping block 7 to clamp the sewing thread out of the thread clamping plate 5, thereby realizing automatic threading of the sewing thread. The operation is relatively quick, and the connecting plate 4 is slidably guided by the slider 12 to ensure smooth sliding of the connecting plate 4, which is beneficial to the subsequent threading operation. The sewing thread is limited and fixed by the positioning block 15 to ensure that it will not separate from the thread clamping plate 5, which is beneficial to the subsequent threading. The anti-slip part 16 is provided to effectively prevent the sewing thread from slipping, which is beneficial to the fixing and clamping operation of the sewing thread.
[0044] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.
[0045] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.
Claims
1. A needle threading device for an automatic sewing machine, characterized in that: include: A sewing needle (2) is arranged on a sewing machine body (1), wherein the sewing needle (2) is provided with a threading opening (3); Two connecting plates (4) arranged on one side of the sewing machine body (1); A wire clamping plate (5) and a thumb cylinder (6) respectively mounted on the two connecting plates (4), wherein the wire clamping plate (5) and the thumb cylinder (6) are arranged opposite to each other; Two clamping blocks (7) respectively mounted on the thumb cylinder (6); a set of fixing mechanisms each provided on any one of the connecting plates (4) for fixing the sewing thread; A storage mechanism is provided on one side of the sewing machine body (1) and is used to store a thread clamping plate (5) and a thumb cylinder (6).
2. The automatic sewing machine threading device according to claim 1, characterized in that: A support plate (8) is provided on one side of the sewing machine body (1), and the support plate (8) is slidably connected to the two connecting plates (4). Two first electric telescopic rods (9) are fixedly mounted on one side of the support plate (8), and the two first electric telescopic rods (9) are respectively fixedly connected to the two connecting plates (4).
3. The automatic sewing machine threading device according to claim 2, characterized in that: Two slide grooves (10) are provided on one side of the support plate (8), two slide rods (11) are fixedly installed in the two slide grooves (10), and sliders (12) are slidably installed on the two slide rods (11), and the two sliders (12) are fixedly connected to the two connecting plates (4) respectively.
4. The automatic sewing machine threading device according to claim 1, characterized in that: The fixing mechanism comprises: a second electric telescopic rod (13) fixedly mounted on the connecting plate (4); A connecting plate (14) mounted on the second electric telescopic rod (13); A positioning block (15) is fixedly mounted on one side of the connection plate (14), and the positioning block (15) is located on one side of the wire clamping plate (5).
5. The automatic sewing machine threading device as claimed in claim 4, characterized in that: The positioning block (15) and the clamping block (7) are both detachably provided with an anti-slip component (16), and the anti-slip component (16) is made of rubber.
6. The automatic sewing machine threading device as claimed in claim 2, characterized in that: The storage mechanism comprises: Two mounting plates (17) both fixedly mounted on one side of the sewing machine body (1); A one-way screw (18) is rotatably mounted on the two mounting plates (17), wherein a guide block (19) is threadedly sleeved on the one-way screw (18); an L-shaped plate (20) fixedly mounted on the guide block (19), a third electric telescopic rod (21) fixedly mounted on the L-shaped plate (20), and the third electric telescopic rod (21) fixedly connected to the support plate (8); A motor (22) is fixedly mounted on one side of the sewing machine body (1), and an output shaft of the motor (22) is fixedly connected to the one-way screw (18).
7. The automatic sewing machine threading device according to claim 6, characterized in that: A protective cover (23) is hinged on one side of the sewing machine body (1); the bottom of the protective cover (23) is open; and the protective cover (23) is buckled onto the one-way screw (18) and the motor (22).
8. The threading device for an automated sewing machine as claimed in claim 4, characterized in that: The clamping block (7), the positioning block (15) and the two anti-slip parts (16) are all installed with Velcro, and a plurality of Velcros are bonded together.