Thread passing cross rod structure on thread stand of sewing machine
By setting thread holes and removable wire parts on the sewing machine thread frame, the problems of confusion and interference of multi-layer thread crossbar sewing threads are solved, the smooth operation of the sewing thread and the convenient replacement of the wire parts are achieved, and the stability and durability of the thread crossbar are enhanced.
Patent Information
- Application Number
- CN202521605789.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2035-07-30
AI Technical Summary
When multi-layer thread bars are on existing sewing machines, sewing threads are prone to be confused and interfere with each other, resulting in poor running.
A thread hole or a wire member with a thread hole is provided on the wire barrel crossbar, so that the next layer of sewing thread passes through the thread hole or wire member on the upper layer, and the uppermost sewing thread passes through the wire crossbar, and adopts a detachable wire member and a hook and hook groove structure, combining a wire disk and a thread barrel crossbar made of plastic to improve stability and convenience.
The sewing thread is not messy when the multi-layer thread crossbar is used, and it runs smoothly, reducing wear and noise. The wire parts are removable and easy to replace, avoiding damage to the thread crossbar.
Smart Images
Figure CN223292774U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewing machines, in particular to a thread-passing crossbar structure on a thread rack of a sewing machine. Background Art
[0002] The existing wire rack includes a support column and a wire crossbar fixed on the support column. The wire crossbar is divided into a conductor crossbar and a wire drum crossbar. The conductor crossbar is provided with a conductor hole for the conductor, the wire drum crossbar is used to place the wire drum, and the wire drum is used to fix the wire drum.
[0003] In the prior art, the sewing threads on the bobbin crossbar are routed through the wire holes of the wire crossbar. This results in too many sewing threads when multiple layers of bobbin crossbars are set up, and when multiple wire drums are set on each bobbin crossbar, which easily causes confusion and interference between the sewing threads. Utility Model Content
[0004] The purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a thread passing cross bar structure on a sewing machine thread rack, wherein a thread passing hole or a thread guide with a thread passing hole is provided on the bobbin cross bar, and the sewing thread of the lower bobbin cross bar passes through the thread passing hole on the upper bobbin cross bar, so that the sewing threads are not messy and do not interfere with each other.
[0005] The technical solution of the utility model is as follows: a thread passing cross bar structure on a sewing machine thread rack comprises a bobbin cross bar, the bobbin cross bar is provided with a thread post for mounting a bobbin, the bobbin cross bar is provided with a thread passing hole for the sewing thread to pass through or a thread guide with a thread passing hole, and the thread guide is detachably connected to the bobbin cross bar.
[0006] By adopting the above technical solution, a thread hole is set on the bobbin cross bar, or a thread guide with a thread hole is set. In this way, when multiple layers of bobbin cross bars are set, the sewing thread on the bobbin cross bar of the next layer passes upward through the thread hole on the bobbin cross bar of the upper layer or acts on the thread guide, and the sewing thread of the top layer passes through the thread guide cross bar. In this way, the sewing threads are not messy and will not interfere with each other, and the operation is smoother. The thread guide is set to be detachable for easy replacement, and can also be disassembled when it is no longer needed.
[0007] The utility model is further configured as follows: a wire passing hole is directly provided on the wire drum crossbar, and a protective sleeve made of metal or ceramic is embedded in the wire passing hole.
[0008] The above further arrangement can avoid damage to the bobbin crossbar and prevent the problem of the bobbin crossbar breaking due to repeated friction of the sewing thread.
[0009] The present invention is further provided with a slot on the side wall of the wire drum crossbar, a hook on the wire guide, and the hook is hooked in the slot to realize the installation of the wire guide.
[0010] By further configuring the above, the wire member has high strength and is not easily damaged. The combination of the hook and the slot makes the wire member easy to assemble and disassemble, and the wire member can be replaced at any time.
[0011] The present invention is further configured as follows: the wire guide is provided by a torsion spring, the spiral portion in the middle of the torsion spring forms the wire hole, the two ends of the torsion spring extend backward to form the hook, two corresponding slots are provided, and the wire drum cross bar is also provided with an opening for the hook to enter and exit the slot.
[0012] With the above-mentioned further arrangement, the torsion spring can be elastically deformed, which makes it easy to install the wire piece on the bobbin cross bar. The two ends of the torsion spring are pressed inward, and the hook is inserted from the corresponding opening, then pushed upward, the hook slides into and enters the slot, and then the torsion spring is released. The hook is set in the slot. When disassembling, press the two connecting arms of the torsion spring to make the hook move toward each other and enter the opening position from the slot to remove the wire piece. The disassembly and assembly are convenient and quick. At the same time, after the wire piece is installed, the structure is stable, and the sliding of the sewing thread will not affect the movement of the wire piece.
[0013] The present invention is further provided with: a wire drum, wherein the wire drum and the wire drum cross bar are both made of plastic and formed in one piece, and a mounting hole for mounting a wire column is provided on the wire drum.
[0014] By adopting the above-mentioned further arrangement, the strength is higher, and the wire drum and the wire drum cross bar will basically not separate unless the wire drum and the wire drum cross bar are broken.
[0015] The utility model is further configured as follows: it also includes a wire cross bar, which is arranged above the wire drum cross bar, and a wire hole is provided on the wire cross bar, and a wire sleeve is provided in the wire hole.
[0016] With the above-mentioned further arrangement, the wire cover can protect the wire hole and the sewing thread, reduce wear and noise, and improve the smoothness of the thread passing. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of a specific embodiment of the utility model in which a wire crossing bar is installed on a support column;
[0018] Figure 2 This is a schematic diagram of a wire guide according to a specific embodiment of the present invention;
[0019] Figure 3 This is a schematic diagram of a spool crossbar according to a specific embodiment of the present utility model;
[0020] Figure 4 for Figure 3 Enlarged view of part A;
[0021] Figure 5 This is a schematic diagram of a conductor crossbar according to a specific embodiment of the present utility model;
[0022] Figure 6 This is a schematic diagram of a specific embodiment of the utility model in which the wire hole is provided on the wire drum crossbar;
[0023] Figure 7 This is a schematic diagram of a specific embodiment of the utility model in which a pressing member and a sleeve member are arranged on a wire post;
[0024] Figure 8 It is a schematic diagram of a pressing member according to a specific embodiment of the present utility model.
[0025] In the figure, 1. wire drum cross bar; 11. wire column; 111. sleeve; 112. pressure piece; 113. pressing piece; 12. slot; 13. opening; 14. wire hole; 2. wire member; 22. hook; 3. wire reel; 4. wire cross bar; 41. wire hole; 10. support column. DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solutions in this embodiment with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
[0027] It should be noted that in the description of this utility model, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0028] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being described. In the description of this utility model, "several" means at least two, such as two or three, unless otherwise specifically defined.
[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.
[0030] like Figure 1-8As shown, a thread-passing crossbar structure on a sewing machine thread rack, the thread-passing crossbar includes a bobbin crossbar and a guide wire crossbar, a plurality of bobbin crossbars can be provided, which are sequentially installed on a support column 10, the guide wire crossbar 4 is provided above the bobbin crossbar 1, a guide wire hole 41 is provided on the guide wire crossbar 4, a guide wire sleeve is provided in the guide wire hole 41, the guide wire sleeve can protect the guide wire hole 41 and the sewing thread, reduce wear and noise, and improve the smoothness of thread passing, the bobbin crossbar 1 is provided with a wire post 11 for mounting the bobbin, the wire post 11 is detachably connected to the bobbin crossbar 1, a plurality of wire posts 11 can be provided on the bobbin crossbar 1 along its length direction, the bobbin crossbar 1 is provided with a wire hole 14 for the sewing thread to pass through or a guide wire member 2 with a wire hole, the guide wire member 2 and the bobbin crossbar 1 can be The connection is disassembled, and a wire hole 14 is provided on the bobbin cross bar 1, or a wire guide 2 with a wire hole is provided. In this way, when multiple layers of bobbin cross bars are provided, the sewing thread on the bobbin cross bar of the next layer passes upward through the wire hole located on the bobbin cross bar of the upper layer or acts on the wire guide. The sewing thread of the top layer passes through the wire guide cross bar, and the wire guide does not need to be provided on the bobbin cross bar of the bottom layer. This makes the sewing threads not messy and will not interfere with each other, and the operation is smoother. The wire guide is provided to be detachable for easy replacement and can be disassembled when it is no longer needed. The connection between the wire guide 2 and the bobbin cross bar 1 can be through a bolt connection, a snap connection, a plug-in fit, etc. The wire guide 2 is made of metal, which makes the wire guide 2 high in strength and not easy to damage.
[0031] Specifically, when the thread hole is directly provided on the bobbin cross bar 1, a protective cover made of metal or ceramic is embedded in the thread hole 14 to avoid damage to the bobbin cross bar and prevent the bobbin cross bar from breaking due to repeated friction of the sewing thread.
[0032] Specifically, the installation method between the wire member 2 and the wire drum cross bar 1 is that a slot 12 is provided on the side wall of the wire drum cross bar 1, and a hook 22 is provided on the wire member 2. The hook 22 is hooked in the slot 12 to realize the installation of the wire member 2. Specifically, the wire member 2 is provided with a torsion spring, and the spiral portion in the middle of the torsion spring forms the wire hole, and the two ends of the torsion spring extend backward to form the hook 22. The slot 12 is correspondingly provided with two, and the wire drum cross bar 1 is also provided with an opening 13 for the hook 22 to enter and exit the slot 12. The torsion spring can elastically change The shape makes it easy to install the wire fitting on the bobbin crossbar 1, press the two connecting arms on the torsion spring inward, and slide the hooks 22 into the corresponding openings 13 respectively, push the torsion spring upward, so that the hooks enter the slots 12, and then release the connecting arms of the torsion spring. The two hooks 22 move away from each other and are hooked in the slots 12. When disassembling, press the connecting arms of the torsion spring so that the hooks 22 move toward each other and enter the opening 13 from the slots 12 to remove the wire fitting. The disassembly and assembly are convenient and quick. At the same time, after the wire fitting is installed, the structure is stable, and the sliding of the sewing thread will not affect the movement of the wire fitting.
[0033] It also includes a wire drum 3, which and the wire drum cross bar 1 are both made of plastic and are integrally formed. The wire drum 3 is provided with an installation hole for installing the wire column 11, which has higher strength. Unless the wire drum 3 and the wire drum cross bar 1 are broken, the wire drum 3 and the wire drum cross bar 1 will basically not separate.
[0034] A sleeve 111 for positioning the thread spool is sleeved on the thread post 11, and the sleeve 111 is detachably arranged on the thread post 11. A pressure piece 112 is sleeved on the thread post 11 above the sleeve 111, and a number of elastically deformable pressing pieces 113 are provided on the pressure piece 112, which can be installed by yourself according to the usage. It is used to fix and guide the sewing thread to ensure uniform tension of the sewing thread and prevent the sewing thread from being entangled or knotted. The sewing thread remains stable during use and the phenomenon of loose thread or thread breakage during sewing is reduced. When the thread spool is sleeved on the thread post, the sleeve and the pressure piece are both located inside the thread spool, and the pressure piece and the sleeve piece cooperate to position the thread spool to prevent it from sliding.
Claims
1. A thread-passing crossbar structure on a sewing machine thread stand, comprising a thread barrel crossbar (1), wherein a thread post (11) for mounting a thread barrel is provided on the thread barrel crossbar (1), and wherein: The bobbin crossbar (1) is provided with a thread hole (14) for the sewing thread to pass through or a thread guide (2) with the thread hole, and the thread guide (2) is detachably connected to the bobbin crossbar (1).
2. The thread-passing crossbar structure on the sewing machine thread stand according to claim 1, characterized in that: A wire hole (14) is directly provided on the wire drum crossbar, and a protective sleeve made of metal or ceramic is embedded in the wire hole (14).
3. The thread-passing crossbar structure on the sewing machine thread stand according to claim 1, characterized in that: A slot (12) is provided on the side wall of the wire drum crossbar (1), and a hook (22) is provided on the wire guide (2). The hook (22) is hooked in the slot (12) to achieve installation of the wire guide (2).
4. The thread-passing crossbar structure on the sewing machine thread stand according to claim 3, characterized in that: The wire guide (2) is provided by a torsion spring, the spiral portion in the middle of the torsion spring forms the wire hole, the two ends of the torsion spring extend backward to form the hook (22), two corresponding slots (12) are provided, and the wire drum cross bar (1) is also provided with an opening (13) for the hook (22) to enter and exit the slot (12).
5. The thread-passing crossbar structure on the thread stand of a sewing machine according to claim 1, 2 or 3, characterized in that: It also includes a wire drum (3), wherein the wire drum (3) and the wire drum cross bar (1) are both made of plastic and are integrally formed, and a mounting hole for mounting a wire column (11) is provided on the wire drum (3).
6. The thread-passing crossbar structure on the thread stand of a sewing machine according to claim 1, 2 or 3, characterized in that: A sleeve (111) for positioning a wire bobbin is sleeved on the wire post (11), and the sleeve (111) is detachably arranged on the wire post (11).
7. The thread-passing crossbar structure on the sewing machine thread stand according to claim 6, characterized in that: The wire column (11) is further provided with a pressing piece (112), which is located above the sleeve (111). The pressing piece (112) is provided with a plurality of elastically deformable pressing sheets (113).
8. The thread-passing crossbar structure on the thread stand of a sewing machine according to claim 1, 2 or 3, characterized in that: It also includes a wire cross bar (4), which is arranged above the wire barrel cross bar (1). The wire cross bar (4) is provided with a wire hole (41), and a wire sleeve is provided in the wire hole (41).