Bird nest preventing device of sewing equipment
By designing an anti -bird nest device that includes connecting seats, hook parts, and two power sources, the problem of sewing machine surface cutting out and excessive extension of the hook parts are solved, and the bird's nest structure is prevented Effect.
Patent Information
- Application Number
- CN202420481249.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-13
AI Technical Summary
The existing sewing machines are prone to peel off when opening the seam, resulting in interruption of sewing, and the hooking member of the anti-nest device is prone to over-extend and impact the needle rod.
Design a anti -bird nest device that includes connection seats, hooks, and two power sources. Hold the noodles through the first power source driver hook parts, and use the first power source to restore the pine line to avoid the formation of the bird's nest structure; Excessive extension.
Effectively prevent sewing fabrics from forming a bird's nest structure to ensure the beautiful line traces, while avoiding excessive extension of the hook parts to the impact of the sewing machine.
Smart Images
Figure CN222412173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewing equipment, in particular to a bird nest prevention device for sewing equipment. Background Art
[0002] A sewing machine is a mechanical device used for stitching, mending and making various sewing crafts. The basic principle of a sewing machine is to connect two or more layers of fabric together through the interactive circular motion between thread and fabric. It is widely used in the textile industry and at home. A sewing machine usually includes a workbench, a sewing head, a bobbin, a needle plate and a foot pedal. The sewing head contains a needle, a bobbin and a tension control system, which enables it to pass through the fabric and form a variety of different stitching patterns; different types of sewing machines can be suitable for different sewing needs, including straight stitching, overlocking, buttonholes and other functions.
[0003] In the prior art, when the sewing machine starts sewing, the upper thread is often pulled out of the needle hole due to the force, causing sewing interruption. At this time, it is necessary to leave the upper thread end long when starting sewing, but if the upper thread end is too long, a bird's nest structure will be formed on the fabric, affecting the appearance of the seam. After sewing is completed, it needs to be trimmed manually, which wastes work time and is not easy to trim cleanly, and may even damage the existing stitches. Moreover, the thread hooking part of the anti-bird's nest device is driven by a power source, and it is easy to move out of the working position during sewing, which will cause the thread hooking part to extend excessively and hit the sewing machine needle bar. Utility Model Content
[0004] In view of the above technical deficiencies, the utility model provides a bird nest prevention device for sewing equipment to solve the problems raised in the above background technology.
[0005] In order to achieve the above object, the utility model is implemented through the following technical solutions:
[0006] A bird's nest prevention device for sewing equipment comprises: a connecting seat and a thread hooking member, a sliding groove is provided at the bottom end of the connecting seat, a first power source is provided at one end of the connecting seat, a telescopic end of the first power source is connected through a sliding block and one end of the thread hooking member, the other end of the thread hooking member is hook-shaped and passes through the wall surface of the other end of the connecting seat, a limited position opening is provided on at least one side in the width direction of the thread hooking member, a thread clamping member is also provided at the end of the other end of the connecting seat, the thread clamping member is located at the bottom end of the thread hooking member, a second power source is provided at the top end of the connecting seat, and the telescopic end of the second power source passes through the wall surface of the top end of the connecting seat and leads to the sliding groove.
[0007] Furthermore, one side of the connecting seat is connected to the first connecting block by bolts, and the first connecting block is provided with a first waist hole and a first matching hole at one end away from the connecting seat.
[0008] Furthermore, the first connecting block is connected to the second connecting block by bolts, the second connecting block is provided with at least one second waist hole at one end away from the first connecting block, and the second connecting block is connected to the third connecting block by bolts.
[0009] Furthermore, a plurality of second matching holes are provided on the top wall surface of the connecting seat near one end of the first power source, a plurality of third matching holes are provided in the middle part of the top end of the connecting seat, the second power source is connected to the top wall surface of the connecting seat near one end of the first power source through a fourth connecting block, and the telescopic end of the second power source passes through one of the third matching holes.
[0010] Furthermore, at least one third waist hole is provided at one end of the clamping member close to the connecting seat.
[0011] Furthermore, the limiting opening is located at one end of the hooking member close to the sliding block.
[0012] The beneficial effects of the utility model are:
[0013] After completing the sewing process of the previous fabric, the first power source is used to drive the thread hooking member to hook the upper thread, and the first power source is reset to pull the upper thread to move to the top of the thread clamping member to clamp the upper thread; after starting the needle, the telescopic end of the first power source is extended again to make the thread hooking member extend out of the thread clamping member again to loosen the thread, which can prevent the sewn fabric from forming a bird's nest structure and ensure the beauty of the stitches. At the same time, the telescopic end of the second power source will extend into the limit opening to limit the moving path of the thread hooking member when the telescopic end of the first power source is extended again, thereby preventing the thread hooking member from extending excessively and hitting the sewing machine needle bar. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the bird nest prevention device.
[0015] Figure 2 This is a schematic diagram of the structure of the bird nest prevention device from another angle.
[0016] Figure 3 For bird nest prevention Figure 2 A partial enlarged view of point A in the middle.
[0017] Figure 4 Explosion diagram of the anti-bird nest device.
[0018] Figure 5 A partial schematic diagram of the anti-bird's nest device and the sewing machine.
[0019] Figure 6 A schematic diagram of the structure of the connecting seat of the bird nest prevention device.
[0020] Figure 7 This is a schematic structural diagram of the connecting base of the bird nest prevention device from another angle.
[0021] Figure 8 A schematic diagram of the structure of the hook wire component of the bird nest prevention device.
[0022] Fig. 9 This is a schematic structural diagram of the first connecting block of the bird's nest prevention device.
[0023] Fig.10 This is a schematic structural diagram of the second connecting block of the bird's nest prevention device.
[0024] Fig.11 A schematic diagram of the structure of the wire clamping member of the bird nest prevention device.
[0025] In the figure, 1, connecting seat; 2, wire hook member; 3, sliding groove; 4, first power source; 5, sliding block; 6, limiting opening; 7, wire clamping member; 8, second power source; 9, first connecting block; 10, first waist hole; 11, first matching hole; 12, second connecting block; 13, second waist hole; 14, third connecting block; 15, second matching hole; 16, third matching hole; 17, fourth connecting block; 18, third waist hole. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] The utility model provides Figures 1 to 11 In combination with the shown, an anti-bird nest device of a sewing equipment includes: a connecting seat 1 and a thread hooking member 2, a sliding groove 3 is provided at the bottom end of the connecting seat 1, a first power source 4 is provided at one end of the connecting seat 1, the telescopic end of the first power source 4 is connected to one end of the thread hooking member 2 through a sliding block 5, the other end of the thread hooking member 2 is hook-shaped and passes through the wall surface of the other end of the connecting seat 1, a limiting opening 6 is provided on at least one side in the width direction of the thread hooking member 2, a thread clamping member 7 is also provided at the end of the other end of the connecting seat 1, the thread clamping member 7 is located at the bottom end of the thread hooking member 2, a second power source 8 is provided at the top end of the connecting seat 1, and the telescopic end of the second power source 8 passes through the wall surface of the top end of the connecting seat 1 and leads to the sliding groove 3.
[0028] Among them, the first power source 4 and the second power source 8 are both cylinders. When the first piece of cloth is sewn, the first power source 4 is started, and the telescopic end of the first power source 4 extends a certain distance along the length direction of the connecting seat 1, thereby driving the sliding block 5 connected to the telescopic end of the first power source 4 to move a certain distance along the sliding groove 3, and then driving the hook-shaped end of the thread hooking member 2 to move a certain distance along the length direction of the connecting seat 1, and then the hook-shaped end of the thread hooking member 2 will hook the surface thread.
[0029] Further, after the hook-shaped end of the thread hooking member 2 hooks the surface thread, the telescopic end of the first power source 4 is controlled to reset, thereby driving the sliding block 5 to move a certain distance in the opposite direction along the sliding groove 3, and then driving the hook-shaped end of the thread hooking member 2 to move a certain distance in the opposite direction along the length direction of the connecting seat 1, and the hook-shaped end of the thread hooking member 2 and the hooked surface thread move to the top of the thread clamping member 7. At this time, the hook-shaped end of the thread hooking member 2 cooperates with the thread clamping member 7 to clamp the surface thread.
[0030] After clamping the surface thread, the sewing machine starts to sew the next piece of cloth. Every time the needle is raised to the third stitch, the telescopic end of the second power source 8 will extend a certain distance and pass through the third matching hole 16 to reach the corresponding position in the sliding groove 3. At this time, the telescopic end of the second power source 8 will be located on the moving path of the limiting opening 6 to limit the limiting opening 6, thereby preventing the thread hooking member 2 from extending excessively and hitting the sewing machine needle bar; at the same time, the telescopic end of the first power source 4 gradually extends, and then drives the thread hooking member 2 to move through the sliding block 5, and the thread hooking member 2 is re-extended to the outside of the clamping member 7 to achieve thread loosening; when the thread loosening is completed, the first power source 4 and the second power source 8 are reset in turn, and the sewing of the piece of cloth is completed; repeating the above steps can prevent the sewn cloth from forming a bird's nest structure and ensure beautiful stitches.
[0031] In an optional embodiment, if Figure 1 , Figure 4 , Fig. 9 and Fig.10 As shown in the figure, one side of the connecting seat 1 is connected to the first connecting block 9 by bolts, and the first connecting block 9 is provided with a first waist hole 10 and a first matching hole 11 at one end away from the connecting seat 1.
[0032] Among them, during installation, the first connecting block 9 is fixed to one side of the connecting seat 1 with bolts, and then bolts are respectively added to the first waist hole 10 and the first matching hole 11 of the first connecting block 9 to achieve the fixation of the first connecting block 9 and the second connecting block 12; when it is necessary to adjust the angle of the anti-bird nest device, the bolts in the first waist hole 10 can be taken out first, and then the first connecting block 9 can be rotated a certain angle with the bolts in the first matching hole 11 as the axis, and then the bolts can be added to the first waist hole 10 again to achieve the fixation of the first connecting block 9 and the second connecting block 12 after the angle is adjusted.
[0033] In an optional embodiment, if Figure 1 , Figure 4 , Fig. 9 and Fig.10 As shown in the figure, the first connecting block 9 is connected to the second connecting block 12 by bolts, the second connecting block 12 is provided with at least a second waist hole 13 at one end away from the first connecting block 9, and the second connecting block 12 is connected to the third connecting block 14 by bolts.
[0034] Among them, one end of the second connecting block 12 is connected to the first connecting block 9 by bolts, and two second waist holes 13 are provided at the end of the second connecting block 12 away from the first connecting block 9. Bolts can be added respectively in the second waist holes 13 to fix the second connecting block 12 and the third connecting block 14, and the end of the third connecting block 14 away from the second connecting block 12 is fixed to the corresponding position of the sewing machine by bolts; when it is necessary to adjust the height of the anti-bird's nest device, the bolts in the second waist hole 13 can be taken out to separate the second connecting block 12 and the third connecting block 14, and then the anti-bird's nest device is moved up or down a certain distance, and then the bolts are added again in the second waist hole 13 to fix the second connecting block 12 and the third connecting block 14 after the height is adjusted, so that the anti-bird's nest device is fixed to the corresponding position of the sewing machine after the height is adjusted.
[0035] In an optional embodiment, if Figure 4 , Figure 6 and Figure 7 As shown in the combination, a plurality of second matching holes 15 are provided on the top wall surface of the connecting base 1 near the end of the first power source 4, a plurality of third matching holes 16 are provided on the middle part of the top end of the connecting base 1, and the second power source 8 is connected to the top wall surface of the connecting base 1 near the end of the first power source 4 through a fourth connecting block 17, and the telescopic end of the second power source 8 passes through one of the third matching holes 16.
[0036] Among them, the second power source 8 is first connected with the fourth connecting block 17, and then a bolt is added to the end of the fourth connecting block 17 away from the second power source 8, and the bolt passing through the fourth connecting block 17 will cooperate with the second matching hole 15, thereby fixing one end of the fourth connecting block 17 to the top wall of the connecting seat 1 close to the end of the first power source 4, that is, the fixed connection between the second power source 8 and the connecting seat 1 is realized; and after the second power source 8 is fixed to the connecting seat 1, the telescopic end of the second power source 8 will be aligned with one of the third matching holes 16, and the telescopic end of the second power source 8 can be controlled to extend a certain distance during the sewing process. At this time, the telescopic end of the second power source 8 will pass through the third matching hole 16 and reach the corresponding position in the sliding groove 3 to achieve the limitation of the limit opening 6.
[0037] In addition, two groups of second matching holes 15 are provided, and each group includes two second matching holes 15 distributed along the width direction of the connecting seat 1. In actual use, the end of the fourth connecting block 17 away from the second power source 8 can be connected to any group of second matching holes 15 as needed to achieve the adjustment of the position of the second power source 8; and two third matching holes 16 are also provided accordingly to ensure that after the position is adjusted, the telescopic end of the second power source 8 can still pass through the third matching hole 16 to reach the corresponding position in the sliding groove 3, so that the telescopic end of the second power source 8 can limit the limit opening 6 at different positions in the sliding groove 3.
[0038] In an optional embodiment, if Figure 1 , Figure 4 and Fig.11 As shown in the figure, at least one third waist hole 18 is provided at one end of the clamping member 7 close to the connecting seat 1 .
[0039] During installation, bolts can be added to the third waist hole 18 to fix the wire clamping member 7 and the connecting seat 1. During actual use, the relative positions of the wire clamping member 7 and the connecting seat 1 can be adjusted as needed, so that the hook-shaped end of the wire hooking member 2 can cooperate with the wire clamping member 7 after moving different distances to achieve clamping of the opposite wire.
[0040] In an optional embodiment, if Figure 1 , Figure 4 and Figure 8 As shown in the figure, the limiting opening 6 is located at one end of the hooking member 2 close to the sliding block 5 .
[0041] Among them, by setting a limit opening 6 at one end of the thread hooking member 2 close to the sliding block 5, the telescopic end of the second power source 8 is conducive to limiting the thread hooking member 2 after moving a preset distance, so as to ensure that the thread hooking member 2 works in an appropriate position, thereby preventing the thread hooking member 2 from extending excessively and hitting the sewing machine needle bar.
[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A bird nest prevention device for sewing equipment, comprising: A connecting seat (1) and a thread hooking member (2), wherein the bottom end of the connecting seat (1) is provided with a sliding groove (3), characterized in that a first power source (4) is provided at one end of the connecting seat (1), the telescopic end of the first power source (4) is connected to one end of the thread hooking member (2) through a sliding block (5), the other end of the thread hooking member (2) is hook-shaped and penetrates the wall surface of the other end of the connecting seat (1), at least one side of the thread hooking member (2) in the width direction is provided with a limiting opening (6), the end of the other end of the connecting seat (1) is also provided with a clamping member (7), the clamping member (7) is located at the bottom end of the thread hooking member (2), and a second power source (8) is provided at the top end of the connecting seat (1), the telescopic end of the second power source (8) penetrates the wall surface of the top end of the connecting seat (1) and leads to the sliding groove (3).
2. The anti-bird nest device for sewing equipment according to claim 1, characterized in that: One side of the connection seat (1) is connected to the first connection block (9) by means of bolts, and the first connection block (9) is provided with a first waist hole (10) and a first matching hole (11) at one end away from the connection seat (1).
3. The anti-bird nest device of sewing equipment according to claim 2, characterized in that: The first connecting block (9) is connected to the second connecting block (12) by means of bolts, the second connecting block (12) is provided with at least one second waist hole (13) at one end away from the first connecting block (9), and the second connecting block (12) is connected to the third connecting block (14) by means of bolts.
4. The anti-bird nest device for sewing equipment according to claim 1, characterized in that: A plurality of second matching holes (15) are provided on the top wall surface of the connection seat (1) close to the first power source (4), and a plurality of third matching holes (16) are provided in the middle of the top end of the connection seat (1). The second power source (8) is connected to the top wall surface of the connection seat (1) close to the first power source (4) through a fourth connection block (17), and the telescopic end of the second power source (8) passes through one of the third matching holes (16).
5. The anti-bird nest device for sewing equipment according to claim 1, characterized in that: At least one third waist hole (18) is provided at one end of the wire clamping member (7) close to the connecting seat (1).
6. The anti-bird nest device for sewing equipment according to claim 1, characterized in that: The limiting opening (6) is located at one end of the thread hooking member (2) close to the sliding block (5).