A thread outlet stand for sewing machine

Abstract

The utility model relates to the field of sewing machines, and discloses a thread outlet rack for sewing machines, including a base, the top of the base is rotatably connected to a support column, the outer side of the support column is fixedly connected to a support plate, the top of the support plate is rotatably connected to a rotating ring, the interior of the rotating ring is slidably connected to four fixed plates symmetrically distributed in front, back, left and right, the interior of the support plate is provided with a through hole, the opposite sides of the four fixed plates are fixedly connected to an inflation module located inside the through hole, the outer side of the support column is rotatably connected to two rotating plates distributed up and down, the tops of the two rotating plates are fixedly connected to a stopper, the outer sides of the two rotating plates are fixedly connected to a mounting plate, and the interiors of the two mounting plates are respectively installed with two wire rings. The thread outlet rack for sewing machines has the advantages of being able to fix the bobbin and adjust the angle and position of the line release.

Description

Technical Field

[0001] The utility model relates to the field of sewing machines, in particular to a thread outlet frame for sewing machines. 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; a sewing machine can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, and products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm, and the sewing speed is fast and easy to use. The thread stand is a thread outlet and conducting device used to assist the sewing machine.

[0003] Many existing thread delivery racks are horizontally arranged so that they are all on the same horizontal plane in terms of thread guide, and most of the thread spools are fixed by extending the placement rod. However, if the thread release speed is fast, the spool moves a large range on the placement rod, and the spool is still at risk of falling. Therefore, a thread delivery rack for a sewing machine is proposed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a thread outlet stand for a sewing machine, which has the advantages of being able to fix the thread spool and adjust the thread-releasing angle and position, and solves the problem that many existing thread outlet stands are horizontally arranged so that they are all on the same horizontal plane in terms of thread guidance, and the thread spool is mostly fixed by means of an extended placement rod, but if the thread-releasing speed is fast, the thread spool moves a large range on the placement rod, and there is still a risk of the thread spool falling.

[0006] (II) Technical solution

[0007] The utility model solves the above-mentioned technical problem with a technical solution as follows: A wire outlet rack for a sewing machine comprises a base, the top of the base is rotatably connected to a support column, the outer side of the support column is fixedly connected to a support plate, the top of the support plate is rotatably connected to a rotating ring, the interior of the rotating ring is slidably connected to four fixed plates symmetrically distributed in front, back, left and right, a through hole is provided inside the support plate, opposite sides of the four fixed plates are fixedly connected to an inflation module located inside the through hole, the outer side of the support column is rotatably connected to two rotating plates distributed up and down, the tops of the two rotating plates are fixedly connected to a stopping device, the outer sides of the two rotating plates are fixedly connected to a mounting plate, and two wire rings are respectively installed inside the two mounting plates.

[0008] The beneficial effects of the utility model are:

[0009] The thread outlet stand for the sewing machine has the advantages of being able to fix the thread shaft and adjust the thread release angle and position.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, four slide grooves are provided inside the rotating ring, and the bottoms of the four fixed plates are fixedly connected with sliders which are slidably connected to the four slide grooves respectively, and the four fixed plates are arranged in an arc shape.

[0012] The beneficial effect of adopting the above further solution is that it can adapt to the central shape of the bobbin and the inner diameter size of the bobbin.

[0013] Furthermore, the inflation module includes an airbag fixedly connected to opposite sides of the four support plates, an air pipe located inside the through hole is provided at the bottom of the airbag, and an inflation ball located outside the through hole is installed on the outside of the air pipe.

[0014] The beneficial effect of adopting the above further solution is that the bobbin can be fixed to prevent the bobbin from falling off when the wire is released.

[0015] Furthermore, the single stopping device includes a connecting plate fixedly connected to the top of the rotating plate, a tension spring fixedly connected to the outer side of the connecting plate, a damping plate fixedly connected to the side of the tension spring away from the connecting plate, a limiting rod fixedly connected to the inner side of the damping plate passing through and extending to the outer side of the connecting plate, and a friction pad in contact with the support column fixedly connected to the outer side of the limiting rod.

[0016] The beneficial effect of adopting the above further solution is that the rotation of the rotating plate can be restricted so that it can be fixed at a certain angle.

[0017] Furthermore, a clearance groove is provided inside the support plate, a rotating shaft is rotatably connected inside the clearance groove, and two limiting rings symmetrically distributed front to back are fixedly connected to the outer side of the rotating shaft.

[0018] The beneficial effect of adopting the above further solution is that the wire can be better connected to the wire loop through a wire passing space.

[0019] Furthermore, two threaded holes are opened inside a single mounting plate, and the tops of the two wire loops are fixedly connected with threaded rods that penetrate and extend and are respectively threadedly connected to the two threaded holes, and nuts are arranged on the outer sides of the two threaded rods.

[0020] The beneficial effect of adopting the above further solution is that the angle of the wire loop can be changed while preventing it from changing direction due to the pulling of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the support plate structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the inflation module of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the stopping device of the utility model.

[0025] In the figure: 1. base; 2. support column; 3. support plate; 4. rotating ring; 5. fixed plate; 6. inflation module; 61. air bag; 62. air pipe; 63. inflation ball; 7. rotating plate; 8. stopper; 81. connecting plate; 82. tension spring; 83. damping plate; 84. limit rod; 85. friction pad; 9. mounting plate; 10. wire ring; 11. slider; 12. rotating shaft; 13. limit ring; 14. threaded rod; 15. nut. 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] In the embodiment, Figure 1-4 A thread outlet rack for a sewing machine is provided. The utility model comprises a base 1, a support column 2 is rotatably connected to the top of the base 1, a support plate 3 is fixedly connected to the outer side of the support column 2, a rotating ring 4 is rotatably connected to the top of the support plate 3, four fixed plates 5 are slidably connected inside the rotating ring 4 and are symmetrically distributed in twos in front, back, left and right directions, a through hole is opened inside the support plate 3, opposite sides of the four fixed plates 5 are fixedly connected to an inflation module 6 located inside the through hole, two rotating plates 7 are rotatably connected to the outer side of the support column 2 and are distributed up and down, a stopping device 8 is fixedly connected to the top of the two rotating plates 7, the outer sides of the two rotating plates 7 are fixedly connected to mounting plates 9, and two wire rings 10 are respectively installed inside the two mounting plates 9.

[0028] There are four slide grooves in the interior of the rotating ring 4 , and the bottoms of the four fixed plates 5 are fixedly connected with sliders 11 which are slidably connected to the four slide grooves respectively, and the four fixed plates 5 are all arranged in an arc shape.

[0029] After the bobbin is placed, the four fixing plates 5 are driven by the slider 11 to stick to the inner wall of the bobbin in the direction limited by the slide groove.

[0030] The inflation module 6 includes an air bag 61 fixedly connected to opposite sides of the four support plates 3 , an air pipe 62 located inside the through hole is provided at the bottom of the air bag 61 , and an inflation ball 63 located outside the through hole is installed outside the air pipe 62 .

[0031] Pressing the inflatable ball 63 can supply air to the airbag 61 through the air pipe 62 , and the airbag 61 will squeeze the four fixing plates 5 to fix the bobbin, and the airbag 61 can be deflated through the deflation hole on the airbag 61 .

[0032] Among them, a single stopping device 8 includes a connecting plate 81 fixedly connected to the top of the rotating plate 7, a tension spring 82 is fixedly connected to the outer side of the connecting plate 81, a damping plate 83 is fixedly connected to the side of the tension spring 82 away from the connecting plate 81, a limiting rod 84 is fixedly connected to the inner side of the damping plate 83 and passes through and extends to the outer side of the connecting plate 81, and a friction pad 85 in contact with the support column 2 is fixedly connected to the outer side of the limiting rod 84.

[0033] Pull up the damping plate 83, and the tension spring 82 is stretched. At this time, the limiting rod 84 drives the friction pad 85 to leave the support column 2, and the rotating plate 7 can rotate. The damping plate 83 is loosened, and the tension spring 82 in tension starts to contract, and under the action of the limiting rod 84, the friction pad 85 is tightly fitted with the rotating plate 7.

[0034] A clearance groove is provided inside the support plate 3, and a rotating shaft 12 is rotatably connected inside the clearance groove. Two limiting rings 13 symmetrically distributed front to back are fixedly connected to the outer side of the rotating shaft 12.

[0035] When the spool is unwinding, the line will first pass through the rotating shaft 12, and then be routed after it goes around the rotating shaft 12 once. The limiting ring 13 prevents the line from falling off when passing through the rotating shaft 12.

[0036] Among them, two threaded holes are opened inside the single mounting plate 9, and the tops of the two wire loops 10 are fixedly connected with threaded rods 14 that penetrate and extend and are respectively threadedly connected to the two threaded holes, and nuts 15 are arranged on the outside of the two threaded rods 14.

[0037] By loosening the nut 15 , the direction of the wire loop 10 can be changed by twisting the wire loop 10 , and then the wire loop 10 can be fixed by combining the threaded rod 14 with the nut 15 .

[0038] Working principle:

[0039] First, place the spool on the rotating ring 4, and then inflate the airbag 61 by pressing the inflatable ball 63. The fixing plate 5 will fix the inside of the spool under the action of the airbag 61. Adjust the direction of the rotating plate 7 through the stop device 8, adjust the direction of the wire loop 10 through the threaded rod 14, and then pass the wire of the spool around the rotating shaft 12, and then pass through several wire loops 10 to lead the wire to the appropriate position.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thread outlet stand for a sewing machine, comprising a base (1), characterized in that: The top of the base (1) is rotatably connected to a support column (2), the outer side of the support column (2) is fixedly connected to a support plate (3), the top of the support plate (3) is rotatably connected to a rotating ring (4), the interior of the rotating ring (4) is slidably connected to four fixed plates (5) symmetrically distributed in front, back, left and right directions, the interior of the support plate (3) is provided with a through hole, the opposite sides of the four fixed plates (5) are fixedly connected to an inflation module (6) located inside the through hole, the outer side of the support column (2) is rotatably connected to two rotating plates (7) distributed up and down, the tops of the two rotating plates (7) are fixedly connected to a stopper (8), the outer sides of the two rotating plates (7) are fixedly connected to a mounting plate (9), and the interiors of the two mounting plates (9) are respectively installed with two wire rings (10).

2. A thread outlet stand for a sewing machine according to claim 1, characterized in that: Four slide grooves are provided inside the rotating ring (4), and the bottoms of the four fixed plates (5) are fixedly connected with sliders (11) respectively slidably connected to the four slide grooves, and the four fixed plates (5) are all arranged in an arc shape.

3. A thread outlet stand for a sewing machine according to claim 1, characterized in that: The inflation module (6) comprises an air bag (61) fixedly connected to opposite sides of the four support plates (3); an air supply pipe (62) located inside the through hole is provided at the bottom of the air bag (61); an inflation ball (63) located outside the through hole is installed on the outside of the air supply pipe (62).

4. A thread outlet stand for a sewing machine according to claim 1, characterized in that: The single stopping device (8) comprises a connecting plate (81) fixedly connected to the top of the rotating plate (7), a tension spring (82) fixedly connected to the outer side of the connecting plate (81), a damping plate (83) fixedly connected to the side of the tension spring (82) away from the connecting plate (81), a limiting rod (84) penetrating through and extending to the outer side of the connecting plate (81) fixedly connected to the inner side of the damping plate (83), and a friction pad (85) in contact with the support column (2) fixedly connected to the outer side of the limiting rod (84).

5. The thread outlet stand for a sewing machine according to claim 1, characterized in that: The support plate (3) is provided with a clearance groove inside, the inside of the clearance groove is rotatably connected to a rotating shaft (12), and the outer side of the rotating shaft (12) is fixedly connected to two limiting rings (13) which are symmetrically distributed in the front and rear.

6. A thread outlet stand for a sewing machine according to claim 1, characterized in that: Two threaded holes are provided inside a single mounting plate (9), and the tops of the two wire loops (10) are fixedly connected with threaded rods (14) that penetrate and extend through and are respectively threadedly connected to the two threaded holes, and nuts (15) are provided on the outer sides of the two threaded rods (14).

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