Positioning assembly and sewing machine device with same

Abstract

The utility model discloses a positioning assembly and a sewing machine device with the same, the positioning assembly comprises a bearing plate, a seat body, a cover plate and a positioning piece, and the bearing plate is provided with a mounting hole; the seat body is connected to the bearing plate; the cover plate covers the seat body, and an accommodating space is formed between the cover plate and the seat body; the positioning piece is arranged in the accommodating space, selectively extends out of the mounting hole, and is switched between a positioning state and a storage state; when the positioning piece is in a positioning state, the auxiliary material and the cutting piece are positioned after the positioning piece extends out of the mounting hole; and when the positioning piece is in the storage state, the positioning piece is stored in the mounting hole. The positioning piece is arranged below the bearing plate, the positioning piece can position and limit the positions of the auxiliary materials and the cutting pieces, the sewing efficiency and the sewing effect of the auxiliary materials and the cutting pieces are improved, accordingly, the protective face sewn subsequently can meet the protective face production requirement of the vehicle seat, the production efficiency of the vehicle is improved, the production cost of the vehicle is reduced, and the production efficiency of the vehicle is improved. And the use feeling of the user during use is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning device technical field especially is related to a positioning assembly and sewing machine device with it. BACKGROUND

[0002] In the prior art, in the production and construction process of the interior trim of the vehicle, especially in the production process of the seat cover of the vehicle, the cover piece and the auxiliary material need to be sewn to meet the assembly needs of the seat. In related technology, the position of the cover piece and the auxiliary material is confirmed after sewing by manual positioning, and the manual positioning method has relatively poor efficiency and positioning deviation due to the actual situation of the sewing personnel, thereby affecting the sewing efficiency and sewing effect, and also relatively increasing the production cost of the vehicle. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, one purpose of the utility model is to provide a positioning assembly, which can determine the positions of the cover piece and the auxiliary material according to needs, so that the cover piece and the auxiliary material can be arranged at appropriate positions according to design for subsequent sewing, which can not only avoid positioning deviation of the cover piece and the auxiliary material during the arrangement process, but also improve the sewing efficiency and sewing effect of the cover piece and the auxiliary material during sewing, and reduce the production cost of the vehicle.

[0004] Another purpose of the utility model is to provide a sewing machine device, which is provided with the positioning assembly as described above.

[0005] The positioning assembly according to the utility model embodiment comprises a bearing plate, a seat body, a cover plate and a positioning piece, the bearing plate is provided with a mounting hole, the seat body is connected to the bearing plate, the cover plate is covered on the seat body, and a containing space is formed between the cover plate and the seat body, the positioning piece is arranged in the containing space, and the positioning piece is arranged opposite to the mounting hole, the positioning piece can move relative to the seat body, so that the positioning piece selectively extends out of the mounting hole, and the positioning piece switches between a positioning state and a storage state, when the positioning piece is in the positioning state, the positioning piece positions the auxiliary material and the cover piece after extending out of the mounting hole, and when the positioning piece is in the storage state, the positioning piece is stored in the mounting hole.

[0006] According to the positioning assembly, the positioning member is arranged below the bearing plate, the positioning member can position and limit the positions of the auxiliary material and the cutting piece, the sewing efficiency and the sewing effect of the auxiliary material and the cutting piece are improved, the subsequent sewn cover can meet the cover production demand of the vehicle seat, the production efficiency of the vehicle is improved, the production cost of the vehicle is reduced, and the use experience of the user is improved.

[0007] In some embodiments, the positioning member is provided with a positioning portion, the cross-sectional shape of the positioning portion is arc-shaped, and one side of the positioning portion is arranged in an open manner.

[0008] In some embodiments, the positioning portion is provided with a positioning block, and the cover plate is provided with a positioning groove, and the positioning block is matched in the positioning groove.

[0009] In some embodiments, further comprising a pull rod, the positioning member is provided with a limiting groove, one side of the pull rod is rotationally connected with the seat body, the other side of the pull rod is slidably arranged in the limiting groove, and the pull rod drives the positioning member to switch between the positioning state and the storage state.

[0010] In some embodiments, the pull rod comprises a connecting rod, a first pin shaft and a second pin shaft, one end of the connecting rod is connected with the first pin shaft, and the first pin shaft is rotationally connected with the seat body; the other end of the connecting rod is connected with the second pin shaft, and the second pin shaft rotates in the limiting groove.

[0011] In some embodiments, the limiting groove has a first end and a second end along the direction of the center line, the first end is on the lower side of the limiting groove, and the second end is on the upper side of the limiting groove, when the other side of the pull rod is at the first end, the positioning member is in the positioning state, and when the other side of the pull rod is at the second end, the positioning member is in the storage state.

[0012] In some embodiments, further comprising a reset member, the positioning member is further provided with a connecting rod, the reset member is sleeved on the outer side of the connecting rod, and the reset member abuts against the inner circumferential wall of the seat body, and the free end of the reset member abuts against and resets the positioning member.

[0013] In some embodiments, the seat body is provided with a connecting hole, and the connecting rod is arranged in the connecting hole.

[0014] In some embodiments, the reset members, the connecting rods and the connecting holes are two and symmetrically arranged relative to the center line.

[0015] The sewing machine device according to the embodiment of the present application comprises the positioning assembly as described above.

[0016] The sewing machine device according to the embodiment of the present application is provided with the positioning assembly as described above, the positioning member is connected to the bearing plate, the positioning member can position and limit the positions of the auxiliary material and the cutting piece, so that the sewing efficiency and the sewing effect of the auxiliary material and the cutting piece are improved, thereby the subsequently sewed cover can meet the production demand of the cover of the vehicle seat, and the production cost of the vehicle is reduced. Moreover, when other structures are sewed or no sewing is performed, the positioning member is suitable for being stored, on the one hand, the stored positioning member can be protected by the bearing plate and the seat body, so that the use reliability of the positioning member is improved, on the other hand, the influence on other sewing requirements is avoided, so that the use performance of the sewing machine device is improved.

[0017] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0019] Figure 1 is a structural schematic view of the sewing machine device according to the embodiment of the present application;

[0020] Figure 2 is a structural schematic view of the positioning assembly according to the embodiment of the present application;

[0021] Figure 3 is a structural schematic view of the bearing plate according to the embodiment of the present application;

[0022] Figure 4 is a structural schematic view of the seat body according to the embodiment of the present application;

[0023] Figure 5 is a structural schematic view of the cover plate according to the embodiment of the present application;

[0024] Figure 6 is a structural schematic view of the positioning member according to the embodiment of the present application;

[0025] Figure 7 is a structural schematic view of the pull rod according to the embodiment of the present application;

[0026] Reference signs:

[0027] Positioning assembly 10,

[0028] Carrying plate 100, mounting hole 101,

[0029] Seat body 200, connecting hole 201,

[0030] Cover plate 300, accommodating space 301, positioning groove 302,

[0031] Positioning piece 400, positioning part 410, positioning block 420, limiting groove 430, first end 431, second end 432, connecting rod 440,

[0032] Pull rod 500, connecting rod 510, first pin shaft 520, second pin shaft 530,

[0033] Reset piece 600,

[0034] Sewing machine device 20. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and the embodiments of the present application will be described in detail below.

[0036] The following will be described Figures 1-7 The positioning assembly 10 according to the embodiments of the present application is described below, which comprises: a carrying plate 100, a seat body 200, a cover plate 300 and a positioning piece 400.

[0037] Specifically, the carrying plate 100 is provided with a mounting hole 101; the seat body 200 is connected to the carrying plate 100; the cover plate 300 is provided on the seat body 200, and the accommodating space 301 is formed between the cover plate 300 and the seat body 200; the positioning piece 400 is arranged in the accommodating space 301, and the positioning piece 400 is arranged opposite to the mounting hole 101, the positioning piece 400 can move relative to the seat body 200, so that the positioning piece 400 selectively extends out of the mounting hole 101, and the positioning piece 400 switches between the positioning state and the storage state; when the positioning piece 400 is in the positioning state, the positioning piece 400 extends out of the mounting hole 101 to position the auxiliary material and the cutting piece; when the positioning piece 400 is in the storage state, the positioning piece 400 is stored in the mounting hole 101.

[0038] It should be noted that in the production and construction process of the interior trim of the vehicle, especially in the production process of the interior seat cover, the cover cutting piece and the auxiliary material need to be sewn, and in the current sewing process, the position of the cutting piece and the auxiliary material is usually confirmed by manual method before sewing, which is relatively poor in efficiency and may cause positioning deviation due to the actual situation of the sewing personnel, thereby affecting the sewing efficiency and sewing effect, and also increasing the production cost of the vehicle relatively much.

[0039] Therefore, the application provides a positioning assembly 10, which can determine the positions of the cutting pieces and the auxiliary materials according to requirements in use, so that the cutting pieces and the auxiliary materials can be arranged in proper positions according to the design for subsequent sewing, which can not only avoid the positioning deviation of the cutting pieces and the auxiliary materials during the arrangement process, but also improve the sewing efficiency and the sewing effect of the cutting pieces and the auxiliary materials, and reduce the production cost of the vehicle.

[0040] Specifically, the positioning assembly 10 of the application is suitable for comprising a bearing plate 100, a seat body 200, a cover plate 300 and a positioning piece 400. The bearing plate 100 is suitable for providing a bearing action to bear the auxiliary materials and the cutting pieces and perform subsequent positioning and sewing, which can not only improve the sewing efficiency and the sewing effect, but also improve the yield of the products sewn by the auxiliary materials and the cutting pieces, thereby reducing the production cost of the vehicle.

[0041] The bearing plate 100 is provided with a mounting hole 101, which is suitable for being arranged opposite to the auxiliary materials and the cutting pieces, so that the auxiliary materials and the cutting pieces can be arranged in proper positions according to the design for subsequent sewing. The bearing plate 100 is connected with the seat body 200, and the seat body 200 is provided with the cover plate 300, so that the accommodation space 301 can be constructed between the seat body 200 and the cover plate 300, which can accommodate other structures and protect them, thereby improving the use reliability of the positioning assembly 10. The positioning piece 400 is arranged in the accommodation space 301. The positioning piece 400 has multiple use states, so that the positioning piece 400 can selectively extend out of the mounting hole 101. The extended positioning piece 400 can be arranged opposite to the auxiliary materials and the cutting pieces and position them, so that the auxiliary materials and the cutting pieces can be arranged in proper positions for subsequent sewing, which can meet the production requirements of the subsequent seat covers, thereby improving the sewing efficiency, so that the production efficiency of the vehicle is higher, and the seat has higher comfort to improve the riding experience of the user.

[0042] That is, the positioning member 400 is adapted to selectively extend the mounting hole 101 according to the needs, so that the positioning member 400 can be switched between the storage state and the positioning state. When the positioning member 400 is in the storage state, the positioning member 400 does not extend the mounting hole 101, so that the positioning member 400 is stored in the accommodation space 301, so that the carrier plate 100, the seat body 200 and the cover plate 300 can protect the positioning member 400, and can avoid the wear and tear of the positioning member 400 during long-term use, so as to reduce the influence of the structural problems of the positioning member 400 on the sewing of the auxiliary material and the cutting piece. When the positioning member 400 is in the positioning state, the positioning member 400 extends the mounting hole 101, so that the positioning member 400 can be in contact with the auxiliary material and the cutting piece, so that the auxiliary material and the cutting piece after positioning can be limited in the appropriate position for subsequent sewing, so that the products produced by the auxiliary material and the cutting piece can meet the production and construction needs of the vehicle, so as to improve the yield of the products in the sewing process.

[0043] In this way, the use of the positioning member 400 is adjusted according to the needs during the sewing of the auxiliary material and the cutting piece, so that the positioning and sewing effect of the auxiliary material and the cutting piece is improved, thereby improving the use experience of the seat cover, and the products produced by the auxiliary material and the cutting piece have good yield, so that the seat cover meets the subsequent construction needs of the vehicle, so that the production cost of the vehicle is reduced.

[0044] At the same time, the positioning member 400 can position and limit the position of the auxiliary material and the cutting piece, so that the auxiliary material and the cutting piece are sewn under the limitation of the positioning member 400, and the sewing efficiency and effect of the auxiliary material and the cutting piece are improved, so that the subsequently sewn cover can meet the construction needs of the vehicle seat, thereby reducing the production cost of the vehicle.

[0045] Moreover, when other structures are sewn, the positioning member 400 is adapted to be stored. On the one hand, the stored positioning member 400 can be protected by the carrier plate 100 and the seat body 200, so as to improve the use reliability of the positioning member 400 and prolong the service life of the positioning assembly 10. On the other hand, the positioning assembly 10 can also avoid affecting other sewing processes.

[0046] According to the positioning assembly 10, the positioning piece 400 is arranged below the bearing plate 100, the positioning piece 400 can position and limit the positions of the auxiliary material and the cutting piece, so that the sewing efficiency and the sewing effect of the auxiliary material and the cutting piece are improved, so that the subsequent sewn cover can meet the production demand of the vehicle seat cover, the production efficiency of the vehicle is improved, the production cost of the vehicle is reduced, and the use experience of the user is improved. Not only that, when other structures are sewn, the positioning piece 400 is suitable for storage, on the one hand, the stored positioning piece 400 can be protected by the bearing plate and the seat body 200, so that the use reliability of the positioning piece 400 is improved, on the other hand, the influence on other sewing requirements is avoided, so that the applicability of the positioning assembly 10 is improved.

[0047] In some embodiments, the positioning piece 400 is provided with a positioning portion 410, the cross-sectional shape of the positioning portion 410 is arc-shaped, and one side of the positioning portion 410 is open. It can be understood that the positioning portion 410 is arranged on the positioning piece 400, the cross-section of the positioning portion 410 is arc-shaped, so that the positioning portion 410 can be positioned with the auxiliary material and the cutting piece, so that the subsequent auxiliary material and cutting piece can be sewn according to the demand and used after sewing, so as to improve the sewing efficiency and sewing effect. Not only that, in the specific use process, the structure shape and position of the positioning portion 410 can be adjusted according to other production requirements, so that the positioning assembly 10 can sew the cutting piece and the auxiliary material according to the demand to meet the production requirements, so that the design and use of the positioning assembly 10 have higher applicability to meet the production requirements.

[0048] In some embodiments, the positioning portion 410 is provided with a positioning block 420, the cover plate 300 is provided with a positioning groove 302, and the positioning block 420 is matched in the positioning groove 302. In this way, in the use process of the positioning portion 410, the positioning groove 302 is arranged on the positioning portion 410, so that the positioning block 420 can be matched with the positioning groove 302, so as to realize the arrangement of the positioning portion 410 on the outer side of the cover plate 300, so that the positioning piece 400 can be designed to be unfolded or stored during use, so that the positioning block 420 can be used according to the design to limit the auxiliary material and the cutting piece, so that the seat cover of the production place has higher use experience to meet the user demand.

[0049] In some embodiments, the positioning assembly 10 further comprises a pull rod 500, the positioning piece 400 is provided with a limiting groove 430, one side of the pull rod 500 is rotationally connected with the seat body 200, the other side of the pull rod 500 is slidably arranged in the limiting groove 430, and the pull rod 500 drives the positioning piece 400 to switch between the positioning state and the storage state.

[0050] That is, in the use of the positioning assembly 10, it is also suitable to construct the pull rod 500, so that the pull rod 500 is suitable to provide a driving limiting effect, so that the pull rod 500 can drive the positioning piece 400 to move, so that the positioning piece 400 can be controlled to be in a storage state or a positioning state. Specifically, one end of the pull rod 500 is rotatably connected to the seat body 200, and the one end of the pull rod 500 provides a rotation center, and the other end of the pull rod 500 is suitable to drive the positioning piece 400 to move, so that the positioning piece 400 can be switched between the positioning state and the storage state according to the user control, so that the positioning assembly 10 can be used according to the user's needs to meet the sewing needs of different materials, and improve the applicability. Moreover, since the limiting groove 430 is provided on the positioning piece 400, the other end of the pull rod 500 can be arranged in the limiting groove 430, so that the other end of the pull rod 500 in the limiting groove 430 can realize the use switching of the storage state and the positioning state of the positioning piece 400.

[0051] In some embodiments, the pull rod 500 includes a connecting rod 510, a first pin shaft 520 and a second pin shaft 530, the first pin shaft 520 is connected to one end of the connecting rod 510, and the first pin shaft 520 is rotatably connected to the seat body 200; the second pin shaft 530 is connected to the other end of the connecting rod 510, and the second pin shaft 530 is rotatable in the limiting groove 430. It can be understood that the pull rod 500 is suitable to include the connecting rod 510, the first pin shaft 520 and the second pin shaft 530, the connecting rod 510 is suitable to provide a connecting bearing effect to connect the first pin shaft 520 and the second pin shaft 530 on both sides, and the first pin shaft 520 is suitable to be connected to the seat body 200 to provide a rotation center for the use of the pull rod 500, so that the second pin shaft 530 of the other end of the pull rod 500 is suitable to be connected to the limiting groove 430, so that the second pin shaft 530 is suitable to move along the limiting groove 430 to realize the switching of different use states of the positioning piece 400, so that the positioning assembly 10 can provide different use states according to the use to meet the sewing use, so that the auxiliary material and the cutting piece can be produced to meet the demand of the protective cover arranged on the seat in the subsequent process, thereby improving the user's use experience on the seat.

[0052] In some embodiments, the cross section of the limiting groove 430 is heart-shaped, and the limiting groove 430 has a first end 431 and a second end 432 along the direction of the center line, the first end 431 is on the lower side of the limiting groove 430, and the second end 432 is on the upper side of the limiting groove 430, when the other side of the pull rod 500 is at the first end 431, the positioning piece 400 is in the positioning state, and when the other side of the pull rod 500 is at the second end 432, the positioning piece 400 is in the storage state.

[0053] It can be understood that the cross section of the limiting groove 430 is set to be heart-shaped, so that the two ends of the limiting groove 430 in the center line direction can constitute two use states of the positioning piece 400. Specifically, the limiting groove 430 is provided with a first end 431 and a second end 432. When the second pin shaft 530 on the pull rod 500 is located at the first end 431, the positioning part 410 of the positioning piece 400 protrudes from the mounting hole 101, so that the positioning part 410 can limit the auxiliary material and the cutting piece to meet the subsequent sewing. When the second pin shaft 530 on the pull rod 500 is located at the second end 432, the positioning part 410 of the positioning piece 400 is retracted, so that the positioning piece 400 can be in a storage state to meet the use. In this way, during the use of the positioning assembly 10, the second pin shaft 530 of the pull rod 500 can be driven to move by pressing or other relatively simple methods, so that the second pin shaft 530 can move in the limiting groove 430 and selectively stay at the first end or the second end 432 to constitute the positioning state or the storage state of the positioning piece 400, respectively. The positioning piece 400 can be more reliably stayed in the corresponding use state to make the subsequent sewing process more reliable. At the same time, the switching between the use states of the positioning piece 400 is suitable for switching according to the pressing, which simplifies the structure of the positioning assembly 10 and makes the use of the positioning assembly 10 more reliable.

[0054] In some embodiments, the positioning assembly 10 further comprises a reset piece 600. The positioning piece 400 is further provided with a connecting rod 440. The reset piece 600 is sleeved on the outer side of the connecting rod 440, and the reset piece 600 abuts against the inner circumferential wall of the seat body 200. The free end of the reset piece 600 abuts against the positioning piece 400 to reset. It can be understood that the positioning assembly 10 is also suitable to comprise the reset piece 600. The two ends of the reset piece 600 abut against the positioning piece 400 and the seat body 200, respectively, so that the reset piece 600 is suitable to provide a driving action to drive the positioning piece 400 to move. In this way, the positioning assembly 10 can be limited by the reset piece 600 during use, so that the use reliability of the positioning assembly 10 is improved. At the same time, the connecting rod 440 is provided on the positioning piece 400. Since the reset piece 600 can be sleeved on the outer side of the connecting rod 440, the connecting rod 440 is suitable to provide a limiting action for the use movement of the reset piece 600, so that the reset piece 600 can be used according to the design, and the use process of the positioning assembly 10 is more reliable. The positioning assembly 10 can accurately position the auxiliary material and the cutting piece to improve the sewing efficiency and effect.

[0055] In some embodiments, the seat body 200 is provided with a connecting hole 201, and the connecting rod 440 is arranged in the connecting hole 201. It can be understood that the connecting hole 201 is arranged on the seat body 200 relative to the connecting rod 440, and the connecting rod 440 is adapted to pass out of the connecting hole 201, so that the connecting hole 201 can provide a movement space for the connecting rod 440, so that the connecting rod 440 can move relatively to compress or expand the reset member 600, so that the use of the reset member 600 is more reliable, so as to drive the positioning member 400 to be used, thereby improving the use performance of the positioning assembly 10.

[0056] In some embodiments, the reset member 600, the connecting rod 440 and the connecting hole 201 are both two and are symmetrically arranged relative to the center line. In this way, by arranging the reset member 600, the connecting rod 440 and the connecting hole 201, the positioning member 400 can be used according to the design during use, so as to improve the use reliability of the positioning assembly 10.

[0057] According to the sewing machine device 20 of the embodiment of the utility model, comprising: the positioning assembly 10 as above. In this way, since the positioning assembly 10 as above is arranged in the sewing machine device 20, the positioning member 400 connected to the bearing plate 100 can position and limit the position of the auxiliary material and the cutting piece, so as to improve the sewing efficiency and effect of the auxiliary material and the cutting piece, so that the subsequent sewn cover can meet the production demand of the cover of the vehicle seat, thereby reducing the production cost of the vehicle. Moreover, when other structures are sewn or not sewn, the positioning member 400 is adapted to be stored, on the one hand, the stored positioning member 400 can be protected by the bearing plate and the seat body 200, so as to improve the use reliability of the positioning member 400, on the other hand, the influence on other sewing requirements can be avoided, so as to improve the use performance of the sewing machine device 20.

[0058] Other configurations and operations of the sewing machine device 20 according to the embodiment of the utility model are known to those skilled in the art, and will not be described in detail here.

[0059] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example.

[0060] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A positioning assembly, characterized by The positioning assembly comprises: a bearing plate, wherein a mounting hole is arranged on the bearing plate; a seat body, wherein the seat body is connected to the bearing plate; a cover plate, wherein the cover plate is arranged on the seat body, and a containing space is formed between the cover plate and the seat body; a positioning member, wherein the positioning member is arranged in the containing space, and the positioning member is arranged opposite to the mounting hole, and the positioning member is movable relative to the seat body, so that the positioning member selectively extends out of the mounting hole, and the positioning member is switched between a positioning state and a storage state; when the positioning member is in the positioning state, the positioning member extends out of the mounting hole to position auxiliary materials and cutting pieces; when the positioning member is in the storage state, the positioning member is stored in the mounting hole.

2. The positioning assembly of claim 1, wherein, The positioning member is provided with a positioning portion, and a cross section of the positioning portion is in an arc shape, and one side of the positioning portion is open.

3. The positioning assembly of claim 2, wherein, The positioning portion is provided with a positioning block, and the cover plate is provided with a positioning groove, and the positioning block is fitted in the positioning groove.

4. The positioning assembly of claim 1, wherein, Further comprising: a pull rod, wherein a limiting groove is arranged on the positioning member, one side of the pull rod is rotationally connected to the seat body, and the other side of the pull rod is slidably arranged in the limiting groove, and the pull rod drives the positioning member to be switched between the positioning state and the storage state.

5. The positioning assembly of claim 4, wherein, The pull rod comprises: a connecting rod; a first pin shaft, wherein one end of the connecting rod is connected to the first pin shaft, and the first pin shaft is rotationally connected to the seat body; a second pin shaft, wherein the other end of the connecting rod is connected to the second pin shaft, and the second pin shaft is rotatable in the limiting groove.

6. The positioning assembly of claim 4, wherein, The limiting groove is in a heart shape, and the limiting groove has a first end and a second end along the direction of the center line, the first end is on the lower side of the limiting groove, and the second end is on the upper side of the limiting groove, when the other side of the pull rod is at the first end, the positioning member is in the positioning state, and when the other side of the pull rod is at the second end, the positioning member is in the storage state.

7. The positioning assembly of claim 1, wherein Further comprising: a reset member, wherein a connecting rod is further arranged on the positioning member, the reset member is sleeved on the outer side of the connecting rod, and the reset member abuts against the inner circumferential wall of the seat body, and the free end of the reset member abuts against the positioning member to reset.

8. The positioning assembly of claim 7, wherein, The seat body is provided with a connecting hole, and the connecting rod is arranged in the connecting hole.

9. The positioning assembly of claim 8, wherein, The reset member, the connecting rod and the connecting hole are two and are symmetrically arranged relative to the center line.

10. A sewing machine apparatus, characterized by, The positioning assembly comprises: any one of claims 1-9.

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