Bottom thread supply device of sewing machine
By designing structures such as the collar body, limiting column and arc plate in the bottom thread supply device of the sewing machine, the problems of inconvenience and hand removal in the prior art are solved, and higher convenience and stability are achieved.
Patent Information
- Application Number
- CN202420517554.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-18
AI Technical Summary
During long-term use of the existing sewing machine bottom thread supply device, the small sleeve size causes inconvenience to staff when wrapping the bottom thread, and it is easy to lose hands, causing the bottom thread to spread.
A sewing machine bottom line supply device including a collar body, a limiting column, a sliding groove, an elastic telescopic rod, a limiting plate, a fixed plate and a grip rod are designed. By providing an elastic telescopic rod and limiting plate, the fixity of the limiting column is increased and the disengagement situation is reduced; the arc plate and limiting groove reduce the risk of misalignment and disengagement.
It improves the convenience of staff when wrapping the bottom line, reduces the situation of hand loss and misalignment, and ensures stable supply of the bottom line.
Smart Images
Figure CN222574987U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sewing machines, in particular to a bottom thread supply device for sewing machines. Background Art
[0002] A sewing machine is a machine used for sewing clothes, other cloth products and textiles. It is roughly divided into household sewing machines and industrial sewing machines according to the scenarios of use. Household sewing machines are easy to operate, while industrial sewing machines can achieve higher sewing speeds and complex sewing requirements.
[0003] The bobbin thread supply of a sewing machine refers to the process of supplying the bobbin thread from the bobbin shaft to the top of the bobbin during operation. The bobbin thread supply system is an important component of the sewing machine, and the bobbin thread in the bobbin is usually wound on a ring. The supply of bobbin thread for household sewing machines is small, and the bobbin thread usually needs to be manually wound on it and installed in the bobbin thread supply device for use.
[0004] In the prior art, it has been found through long-term observation that when winding the bottom line on the ring, due to the small size of the ring, it is inconvenient for the staff to hold the ring to wind it, and it is easy to slip out of the hands, causing the bottom line on the ring to spread out.
[0005] To this end, the utility model provides a bottom thread supply device for a sewing machine. Utility Model Content
[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a bottom thread supply device for a sewing machine.
[0007] The technical solution adopted by the utility model to solve its technical problems is: a sewing machine bottom thread supply device described in the utility model comprises a ring body; a plurality of groups of limit columns are installed on the side wall of the ring body; a sliding groove is opened on the side wall of the limit column; the middle part of the sliding groove is slidably connected to the limit plate; the side wall of the limit plate is fixedly connected with an elastic telescopic rod; the other side wall of the elastic telescopic rod is fixedly connected to the side wall of the sliding groove; the side wall of the limit column is intersected with a fixed plate; the side wall of the limit column is fixedly connected with a grip rod; this step increases the effect of fixing the limit column on the side wall of the ring body by providing an elastic telescopic rod and using it in conjunction with the limit plate and the fixed plate, thereby increasing the convenience of use for the staff when winding the bottom thread on the side wall of the ring body, and reducing the situation where the staff loses their hands when winding the bottom thread on the side wall of the ring body.
[0008] Preferably, a limiting groove is provided on the side wall of the limiting column; the limiting groove is arranged in a T shape; the middle part of the limiting groove is slidably connected to a limiting block; an arc plate is fixedly connected to the side wall of the limiting block; the limiting groove and the limiting block are arranged correspondingly; the arc plate is arranged in an arc shape; this step reduces the dislocation when the staff winds the bottom line on the side wall of the ring body by providing the arc plate, which is convenient for the staff to use; and the limiting groove and the limiting block are provided to increase the detachable effect of the arc plate, which further facilitates the assembly and use of the ring body by the staff.
[0009] Preferably, a No. 1 magnetic block is fixedly connected to the inner side wall of the limiting groove; a No. 2 magnetic block is fixedly connected to the side wall of the limiting block; the No. 1 magnetic block and the limiting groove are correspondingly arranged; the limiting block and the No. 2 magnetic block are correspondingly arranged; the No. 1 magnetic block and the No. 2 magnetic block are magnetically attracted to each other; this step increases the stability of the limiting block in the middle of the limiting groove by providing the No. 1 magnetic block and the No. 2 magnetic block, and reduces the situation where the limiting block is separated from the middle of the limiting groove when the arc plate is in use.
[0010] Preferably, the end of the gripping rod is fixedly connected to a bracket; a plurality of groups of push rods are fixedly connected to the side wall of the bracket; the push rods are arranged in a circular array; the ends of the push rods are in contact with the side wall of the ring body; this step further increases the stability of the gripping rod and the limiting column when they are installed on the side wall of the ring body by providing the bracket and the push rod, and reduces the shaking of the limiting column when the ring body is in use.
[0011] Preferably, the side wall of the grip is provided with a plurality of groups of anti-skid patterns; the anti-skid patterns are arranged in a circular array; this step increases the friction force on the side wall of the grip by providing the anti-skid patterns, and reduces the possibility of the staff slipping their hands when holding the side wall of the grip.
[0012] Preferably, a rubber pad is fixedly connected to the middle side wall of the ring body; this step increases the friction of the bottom line wrapped around the side wall of the rubber pad by providing the rubber pad, and reduces the possibility of the bottom line falling off when wrapped around the side wall of the ring body.
[0013] Preferably, an expansion sleeve is fixedly connected to a side wall of the collar body close to the limiting column; this step reduces the occurrence of a gap between the limiting column and the collar body by providing the expansion sleeve.
[0014] The beneficial effects of the utility model are as follows:
[0015] 1. The utility model discloses a sewing machine bottom thread supply device, which is provided with an elastic telescopic rod and used in conjunction with a limit plate and a fixing plate, thereby increasing the effect of fixing the limit column on the side wall of the ring body, thereby increasing the convenience of the staff when winding the bottom thread on the side wall of the ring body, and reducing the situation where the staff loses their hands when winding the bottom thread on the side wall of the ring body.
[0016] 2. The utility model discloses a sewing machine bottom thread supply device, which reduces the possibility of dislocation of the bottom thread when the staff winds it around the side wall of the ring body by providing an arc-shaped plate, thereby facilitating the use of the staff. The utility model also increases the detachable effect of the arc-shaped plate by providing a limit groove and a limit block, thereby further facilitating the assembly and use of the ring body by the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings.
[0018] Figure 1 It is a stereogram in the utility model;
[0019] Figure 2 It is a side view of the utility model;
[0020] Figure 3 It is a structural schematic diagram of the grip rod in the utility model;
[0021] Figure 4 It is a structural schematic diagram of the limit column in the utility model;
[0022] Figure 5 yes Figure 2 A partial enlarged view of point A in the middle.
[0023] In the figure: 1. ring body; 11. limit column; 12. sliding groove; 13. elastic telescopic rod; 14. limit plate; 15. fixed plate; 16. grip rod; 2. limit groove; 21. limit block; 22. arc plate; 3. magnetic block No. 1; 31. magnetic block No. 2; 4. bracket; 41. push rod; 5. anti-slip pattern; 6. rubber pad; 7. expansion sleeve. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0025] like Figures 1 to 4As shown, a sewing machine bottom line supply device described in an embodiment of the utility model comprises a collar body 1; a plurality of groups of limiting posts 11 are installed on the side wall of the collar body 1; a sliding groove 12 is opened on the side wall of the limiting post 11; a limiting plate 14 is slidably connected to the middle of the sliding groove 12; an elastic telescopic rod 13 is fixedly connected to the side wall of the limiting plate 14; the other side wall of the elastic telescopic rod 13 is fixedly connected to the side wall of the sliding groove 12; a fixing plate 15 is connected to the side wall of the limiting post 11; a gripping rod 16 is fixedly connected to the side wall of the limiting post 11; when the staff needs to wrap the bottom line around the side wall of the collar body 1 for use, the plurality of groups of limiting posts 11 on the side wall of the gripping rod 16 are aligned with the side wall of the collar body 1, and first the fixing plate 15 on the side wall of the limiting post 11 is aligned with the collar body 1. The side wall of the ring body 1 is in contact with the side wall of the gripping rod 16, at which time the side wall of the gripping rod 16 is pushed, and the fixing plate 15 rotates on the side wall of the limiting column 11 until the fixing plate 15 passes through the side wall of the ring body 1. At this time, the ring body 1 is in contact with the side wall of the limiting plate 14, and the side wall of the ring body 1 is clamped by the fixing plate 15. At this time, the staff holds the side wall of the gripping rod 16 to wind the bottom line around the side wall of the ring body 1. This step is provided with an elastic telescopic rod 13, and is used in conjunction with the limiting plate 14 and the fixing plate 15, which increases the effect of fixing the limiting column 11 on the side wall of the ring body 1, thereby increasing the convenience of the staff when winding the bottom line around the side wall of the ring body 1, and reducing the situation where the staff loses their hands when winding the bottom line around the side wall of the ring body 1.
[0026] like Figure 4 As shown, the side wall of the limiting column 11 is provided with a limiting groove 2; the limiting groove 2 is arranged in a T shape; the middle part of the limiting groove 2 is slidably connected to the limiting block 21; the side wall of the limiting block 21 is fixedly connected with an arc plate 22; the limiting groove 2 and the limiting block 21 are arranged correspondingly; the arc plate 22 is arranged in an arc shape; when the limiting column 11 passes through the side wall of the collar body 1, the limiting block 21 on the side wall of the arc plate 22 is aligned with the side wall of the limiting groove 2, and at this time, the side wall of the limiting block 21 is pushed so that the limiting block 21 slides in the middle of the limiting groove 2 until the arc plate 22 is installed on the collar body. On the side wall of the ring body 1, when the bottom line is wound on the side wall of the ring body 1, the bottom line first contacts the side wall of the arc plate 22, and then slides along the inclined side wall of the arc plate 22, and finally is wound on the side wall of the ring body 1 for use. This step reduces the dislocation of the bottom line when the staff winds it on the side wall of the ring body 1 by providing the arc plate 22, which is convenient for the staff to use. By providing the limit groove 2 and the limit block 21, the detachable effect of the arc plate 22 is increased, which further facilitates the assembly and use of the ring body 1 by the staff.
[0027] like Figure 4As shown, the inner side wall of the limit groove 2 is fixedly connected with a No. 1 magnetic block 3; the side wall of the limit block 21 is fixedly connected with a No. 2 magnetic block 31; the No. 1 magnetic block 3 and the limit groove 2 are correspondingly arranged; the limit block 21 and the No. 2 magnetic block 31 are correspondingly arranged; the No. 1 magnetic block 3 and the No. 2 magnetic block 31 are magnetically attracted to each other; when the limit block 21 slides in the middle of the limit groove 2, the No. 2 magnetic block 31 on the side wall of the limit block 21 contacts the No. 1 magnetic block 3, and is affected by the magnetic force and pulls each other. This step increases the stability of the limit block 21 in the middle of the limit groove 2 by arranging the No. 1 magnetic block 3 and the No. 2 magnetic block 31, and reduces the situation where the limit block 21 is separated from the middle of the limit groove 2 when the arc plate 22 is in use.
[0028] like Figure 1 As shown, the end of the gripping rod 16 is fixedly connected to the bracket 4; the side wall of the bracket 4 is fixedly connected to multiple groups of push rods 41; the push rods 41 are arranged in a circular array; the ends of the push rods 41 are in contact with the side wall of the ring body 1; when the staff installs the gripping rod 16 on the side wall of the ring body 1, the multiple groups of push rods 41 on the side wall of the bracket 4 are pressed until the bracket 4 is inserted into the middle of the ring body 1, at this time, the multiple groups of push rods 41 on the side wall of the bracket 4 will contact with the side wall of the ring body 1, this step further increases the stability of the gripping rod 16 and the limiting column 11 when they are installed on the side wall of the ring body 1 by providing the bracket 4 and the push rods 41, and reduces the shaking of the limiting column 11 when the ring body 1 is in use.
[0029] like Figure 1 As shown, the side wall of the grip 16 is provided with a plurality of groups of anti-skid grooves 5; the anti-skid grooves 5 are arranged in a circular array; when the staff holds the side wall of the grip 16, the palm of the staff contacts the side wall of the anti-skid grooves 5. This step increases the friction force on the side wall of the grip 16 by providing the anti-skid grooves 5, and reduces the possibility of the staff slipping from the side wall of the grip 16 when holding the side wall of the grip 16.
[0030] like Figure 2 As shown, a rubber pad 6 is fixedly connected to the middle side wall of the ring body 1; when the staff first winds a circle of the bottom line around the side wall of the ring body 1, the bottom line contacts the side wall of the rubber pad 6. This step increases the friction force of the bottom line wrapped around the side wall of the rubber pad 6 by providing the rubber pad 6, and reduces the possibility of the bottom line falling off when wrapped around the side wall of the ring body 1.
[0031] like Figure 5 As shown, an expansion sleeve 7 is fixedly connected to the side wall of the ring body 1 close to the limiting column 11; when the limiting column 11 is inserted into the side wall of the ring body 1, the limiting column 11 contacts the expansion sleeve 7 on the side wall of the ring body 1. This step reduces the occurrence of a gap between the limiting column 11 and the ring body 1 by providing the expansion sleeve 7.
[0032] Working principle: When the staff needs to wind the bottom line on the side wall of the collar body 1 for use, align the multiple groups of limit columns 11 on the side wall of the grip rod 16 with the side wall of the collar body 1. First, the fixing plate 15 on the side wall of the limit column 11 contacts the side wall of the collar body 1. At this time, the side wall of the grip rod 16 is pushed, and the fixing plate 15 rotates on the side wall of the limit column 11 until the fixing plate 15 passes through the side wall of the collar body 1. At this time, the collar body 1 contacts the side wall of the limit plate 14, and The side wall of the collar body 1 is clamped with the fixing plate 15. At this time, the staff holds the side wall of the grip rod 16 to wind the bottom line on the side wall of the collar body 1. When the limiting column 11 passes through the side wall of the collar body 1, the limiting block 21 on the side wall of the arc plate 22 is aligned with the side wall of the limiting groove 2. At this time, the side wall of the limiting block 21 is pushed so that the limiting block 21 slides in the middle of the limiting groove 2 until the arc plate 22 is installed on the side wall of the collar body 1. When the bottom line is wound on the side wall of the collar body 1 The bottom line first contacts the side wall of the arc plate 22, and then slides along the side wall of the arc plate 22, and finally wraps around the side wall of the ring body 1 for use. When the limit block 21 slides in the middle of the limit groove 2, the second magnetic block 31 on the side wall of the limit block 21 contacts the first magnetic block 3, and is affected by the magnetic force and pulls each other. When the staff installs the grip 16 on the side wall of the ring body 1, they press the multiple groups of push rods 41 on the side wall of the bracket 4 until the bracket 4 is inserted into the middle of the collar body 1, at this time, the multiple groups of push rods 41 on the side wall of the bracket 4 will contact the side wall of the collar body 1, when the staff holds the side wall of the grip rod 16, the palm of the staff contacts the side wall of the anti-slip pattern 5, when the staff first wraps a circle of the bottom line around the side wall of the collar body 1, the bottom line contacts the side wall of the rubber pad 6, and when the limiting column 11 is inserted into the side wall of the collar body 1, the limiting column 11 contacts the expansion sleeve 7 on the side wall of the collar body 1.
[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A sewing machine bottom thread supply device, comprising a ring body (1); characterized in that: The side wall of the collar body (1) is provided with a plurality of groups of limit columns (11); a sliding groove (12) is provided on the side wall of the limit column (11); a limit plate (14) is slidably connected to the middle of the sliding groove (12); an elastic telescopic rod (13) is fixedly connected to the side wall of the limit plate (14); the other side wall of the elastic telescopic rod (13) is fixedly connected to the side wall of the sliding groove (12); a fixing plate (15) is connected to the side wall of the limit column (11); and a gripping rod (16) is fixedly connected to the side wall of the limit column (11).
2. A sewing machine bottom thread supply device according to claim 1, characterized in that: The side wall of the limiting column (11) is provided with a limiting groove (2); the limiting groove (2) is arranged in a T shape; the middle of the limiting groove (2) is slidably connected to the limiting block (21); the side wall of the limiting block (21) is fixedly connected with an arc plate (22); the limiting groove (2) and the limiting block (21) are arranged correspondingly; the arc plate (22) is arranged in an arc shape.
3. A sewing machine bottom thread supply device according to claim 2, characterized in that: A first magnetic block (3) is fixedly connected to the inner side wall of the limiting groove (2); a second magnetic block (31) is fixedly connected to the side wall of the limiting block (21); the first magnetic block (3) and the limiting groove (2) are arranged correspondingly; the limiting block (21) and the second magnetic block (31) are arranged correspondingly; the first magnetic block (3) and the second magnetic block (31) are magnetically attracted to each other.
4. A sewing machine bottom thread supply device according to claim 3, characterized in that: The end of the gripping rod (16) is fixedly connected to a bracket (4); a plurality of groups of push rods (41) are fixedly connected to the side wall of the bracket (4); the push rods (41) are arranged in a circular array; the ends of the push rods (41) are in contact with the side wall of the collar body (1).
5. A sewing machine bottom thread supply device according to claim 4, characterized in that: The side wall of the grip rod (16) is provided with a plurality of groups of anti-skid patterns (5); the anti-skid patterns (5) are arranged in a circular array.
6. A sewing machine bottom thread supply device according to claim 5, characterized in that: A rubber pad (6) is fixedly connected to the middle side wall of the collar body (1).
7. A sewing machine bottom thread supply device according to claim 6, characterized in that: An expansion sleeve (7) is fixedly connected to a side wall of the collar body (1) close to the limiting column (11).