Single direct drive sewing machine structure

Abstract

The utility model provides a single direct drive sewing machine structure, which comprises a sewing machine body and a bedplate, the sewing machine body is fixed on the bedplate, the outer wall of the sewing machine body is provided with a heat dissipation hole, a support rod is fixedly connected in the heat dissipation hole, the support rod is rotatably connected with a fan blade, and the fan blade is fixed on the bedplate. The heat dissipation holes are connected with a dust cover through a positioning structure, and the fan blades are located in the dust cover, so that the purpose of heat dissipation of the sewing machine body by the swan is achieved, and the sewing machine body can operate for a long time.

Description

Technical Field

[0001] The utility model relates to a sewing machine, and in particular to a structure of a single direct-drive sewing machine. Background Art

[0002] At present, a Chinese patent with the authorization announcement number CN209584552U discloses a sewing machine, which includes a frame body and a table board connected to the frame body. A clamping component is arranged between the table board and the frame body, and the table board is clamped and matched with the frame body to realize the detachable connection of the table board relative to the frame body.

[0003] This kind of sewing machine can solve the problem that the table board of the sewing machine in the prior art is inconvenient to disassemble.

[0004] However, during the operation of the sewing machine, a large amount of heat will be generated, and the heat accumulates inside the sewing machine, which easily causes the sewing machine to be unable to operate for a long time. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a structure of a single direct-drive sewing machine, which dissipates heat from the sewing machine body by setting a fan blade, so that the sewing machine body can operate for a long time.

[0006] To solve the above technical problems, the technical solution of the utility model is: a structure of a single direct-drive sewing machine, including a sewing machine body and a table board. The sewing machine body is fixed on the table board. Heat dissipation holes are formed on the outer wall of the sewing machine body. A support rod is fixedly connected inside the heat dissipation holes. A fan blade is rotatably connected to the support rod. The heat dissipation holes are connected with a dust-proof cover through a positioning structure, and the fan blade is located inside the dust-proof cover.

[0007] When the above technical solution is realized, during the rotation of the fan blade, the wind blows into the inside of the sewing machine body from the outside to achieve the purpose of dissipating heat from the sewing machine body. During the operation of the sewing machine body, there will be more dust in the air. Through the setting of the dust-proof cover, most of the dust is blocked by the dust-proof cover, reducing the amount of dust entering the sewing machine body, so that the sewing machine body can operate for a long time and with high intensity.

[0008] As a preferred solution of the utility model, the positioning structure includes a threaded ring and a positioning ring. The threaded ring is fixed at the end of the heat dissipation hole, and the threaded ring is coaxially arranged with the heat dissipation hole. The positioning ring is fixed on the dust-proof cover and is threadedly connected with the threaded ring.

[0009] When the above technical solution is realized, rotate the dust-proof cover forward to thread the positioning ring onto the threaded ring, so that the dust-proof cover is fixed on the heat dissipation hole; rotate the dust-proof cover backward, and the dust-proof cover can be removed from the heat dissipation hole to facilitate the repair of the fan blade.

[0010] As a preferred embodiment of the present utility model, the dust cover includes a protective frame and a filter screen. The positioning ring is fixedly connected to the protective frame, and the filter screen is connected to the protective frame through a detachable structure.

[0011] To achieve the above technical solution, the protective frame plays a role in protecting the fan blades. After the filter screen is removed from the protective frame through the detachable structure, it is convenient to clean and maintain the filter screen.

[0012] As a preferred embodiment of the present utility model, the detachable structure includes a connecting ring groove, a clamping plate, a mounting hole, and an elastic member. The connecting ring groove is opened at the end of the protective frame and corresponds to the filter screen. The mounting hole is opened on the inner wall of the connecting ring groove. The elastic member is placed in the mounting hole and one end thereof is connected to the inner wall of the mounting hole. The other end of the elastic member is connected to the clamping plate. The clamping plate is slidably connected in the mounting hole. First inclined surfaces and second inclined surfaces for abutting against the edges of the filter screen are respectively opened on both sides of the clamping plate.

[0013] To achieve the above technical solution, move the cleaned filter screen along the connecting ring groove so that the edge of the filter screen abuts against the first inclined surface on the clamping plate. Through the guiding action of the first inclined surface, the clamping plate moves towards the direction close to the mounting hole until the filter screen bypasses the first inclined surface and abuts against the bottom wall of the connecting ring groove. Through the elastic force of the elastic member, the clamping plate extends out of the mounting hole and the second inclined surface abuts against the edge of the filter screen. Through the guiding action of the second inclined surface, the filter screen continuously generates a tendency to move towards the bottom wall of the connecting ring groove, so as to keep the filter screen positioned; applying a force to the filter screen in the direction away from the bottom wall of the connecting ring groove can remove the filter screen from the protective frame, and the operation is simple.

[0014] As a preferred embodiment of the present utility model, an inclined elastic plate is fixedly connected to the side wall of the clamping plate, and the end of the elastic plate away from the clamping plate is used for abutting against the end of the mounting hole.

[0015] To achieve the above technical solution, insert the clamping plate into the mounting hole. The elastic plate abuts against the inner wall of the mounting hole and bends towards the direction close to the clamping plate. As the elastic plate moves to the inside of the mounting hole, it restores through its own elastic force, so that the clamping plate is not easily disengaged from the mounting hole.

[0016] As a preferred embodiment of the present utility model, a plurality of anti-slip grooves are opened on the edge of the protective frame, and the plurality of protective grooves are evenly distributed along the axis of the protective frame.

[0017] To achieve the above technical solution, through the arrangement of the anti-slip grooves, it is convenient to rotate the protective frame.

[0018] As a preferred embodiment of the present utility model, the fan blade includes a drive shaft and blades. The drive shaft is rotatably connected to the support rod, and the blades are fixed to the drive shaft by positioning bolts.

[0019] To implement the above technical solution, the drive shaft is inserted into the blade, and the blade is fixedly connected to the drive shaft through a positioning bolt. After removing the positioning bolt, the blade and the drive shaft can be separated, facilitating the replacement and repair of the blade.

[0020] As a preferred embodiment of the present utility model, a placement hole is provided in the middle of the filter screen, and the end of the drive shaft is located in the placement hole.

[0021] To implement the above technical solution, the structure is made more compact, reducing the space occupied. Description of the Drawings

[0022] Figure 1 is a schematic external structure diagram of the present utility model;

[0023] Figure 2 is a schematic diagram showing the connection structure of the blade and the drive shaft;

[0024] Figure 3 is a schematic diagram showing the structure of the protective frame;

[0025] Figure 4 is a schematic diagram showing the structure of the support rod;

[0026] Figure 5 is a schematic diagram showing the structure of the filter screen;

[0027] Figure 6 is a schematic cross-sectional diagram showing the detachable structure.

[0028] Reference numerals: 11, sewing machine body; 12, table board; 2, heat dissipation holes; 21, support rod; 3, fan blade; 31, drive shaft; 32, blade; 321, support ring; 322, paddle; 4, dust-proof cover; 41, protective frame; 42, filter screen; 43, anti-slip groove; 5, positioning structure; 51, threaded ring; 52, positioning ring; 6, detachable structure; 61, connecting ring groove; 62, clamping plate; 63, mounting hole; 64, elastic member; 71, elastic plate; 72, first inclined surface; 73, second inclined surface; 8, placement hole. Detailed Embodiments

[0029] The following further details the specific embodiments of the present utility model in conjunction with the drawings, so that the technical solutions of the present utility model are easier to understand and master.

[0030] A single direct-drive sewing machine structure includes a sewing machine body 11 and a table board 12; the sewing machine body 11 is fixed on the table board 12.

[0031] On the outer wall of the sewing machine body 11, there are circular heat dissipation holes 2. Inside the heat dissipation holes 2, there are support rods 21 fixedly connected. On the support rods 21, there are fan blades 3 rotatably connected. The fan blade 3 includes a drive shaft 31 and blades 32. The drive shaft 31 is rotatably connected to the support rod 21 and is coaxially arranged with the heat dissipation hole 2. The drive shaft 31 is driven by a servo motor (not shown in the figure), and the servo motor is fixed inside the sewing machine body 11. The blade 32 includes a support ring 321 and paddle blades 322. A plurality of paddle blades 322 are fixedly connected to the outer wall of the support ring 321 and are evenly distributed along the axis of the support ring 321. The support ring 321 is sleeved on the drive shaft 31, and then the support ring 321 is fixed to the drive shaft 31 through a positioning bolt.

[0032] The heat dissipation hole 2 is connected with a dust-proof cover 4 through a positioning structure 5, and the fan blade 3 is located inside the dust-proof cover 4.

[0033] The positioning structure 5 includes a threaded ring 51 and a positioning ring 52. Among them, the threaded ring 51 is fixed to the end of the heat dissipation hole 2, and the threaded ring 51 is coaxially arranged with the heat dissipation hole 2. The positioning ring 52 is fixed to the end of the dust-proof cover 4 and is threadedly connected with the threaded ring 51.

[0034] The dust-proof cover 4 includes a protection frame 41 and a filter screen 42. The positioning ring 52 is fixedly connected to the edge of the protection frame 41, and the protection frame 41 is coaxially arranged with the positioning ring 52. On the edge of the protection frame 41, there are a plurality of anti-slip grooves 43, and the plurality of protection grooves are evenly distributed along the axis of the protection frame 41. The filter screen 42 is connected to the protection frame 41 through a detachable structure 6.

[0035] The detachable structure 6 includes a connecting ring groove 61, a clamping plate 62, mounting holes 63 and an elastic member 64. Among them, the connecting ring groove 61 is opened at the end of the protection frame 41 and corresponds to the filter screen 42, and the connecting ring groove 61 is coaxially arranged with the protection frame 41. The mounting holes 63 are opened on the inner wall of the connecting ring groove 61, and two mounting holes 63 are evenly distributed along the axis of the connecting ring groove 61.

[0036] The elastic member 64 is placed in the mounting hole 63, and the elastic member 64 is a spring. One end of the elastic member 64 is connected to the inner wall of the mounting hole 63, and the other end of the elastic member 64 is connected to the clamping plate 62. The clamping plate 62 is slidably connected in the mounting hole 63.

[0037] In order to prevent the clamping plate 62 from disengaging from the mounting hole 63, an inclined elastic plate 71 is fixedly connected to the side wall of the clamping plate 62. One end of the elastic plate 71 away from the clamping plate 62 is used to abut against the end of the mounting hole 63. The elastic plate 71 is made of plastic.

[0038] On both sides of the clamping plate 62, there are a first inclined surface 72 and a second inclined surface 73 for abutting against the edge of the filter screen 42.

[0039] A placement hole 8 with a circular cross-section is provided in the middle of the filter screen 42, and the end of the drive shaft 31 is located within the placement hole 8.

[0040] Of course, the above are only typical examples of the present utility model. In addition, the present utility model can also have many other specific implementation manners. Any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. A single direct drive sewing machine structure, comprising a sewing machine body (11) and a table (12), wherein the sewing machine body (11) is fixed on the table (12), and wherein: A heat dissipation hole (2) is provided on the outer wall of the sewing machine body (11), a support rod (21) is fixedly connected inside the heat dissipation hole (2), a fan blade (3) is rotatably connected to the support rod (21), the heat dissipation hole (2) is connected to a dust cover (4) via a positioning structure (5), and the fan blade (3) is located inside the dust cover (4).

2. A single direct drive sewing machine structure according to claim 1, characterized in that: The positioning structure (5) comprises a threaded ring (51) and a positioning ring (52); the threaded ring (51) is fixed to the end of the heat dissipation hole (2); the threaded ring (51) and the heat dissipation hole (2) are coaxially arranged; and the positioning ring (52) is fixed to the dust cover (4) and is threadedly connected to the threaded ring (51).

3. A single direct drive sewing machine structure according to claim 2, characterized in that: The dust cover (4) comprises a protective frame (41) and a filter (42), the positioning ring (52) is fixedly connected to the protective frame (41), and the filter (42) is connected to the protective frame (41) via a detachable structure (6).

4. A single direct drive sewing machine structure according to claim 3, characterized in that: The detachable structure (6) comprises a connecting ring groove (61), a clamping plate (62), a mounting hole (63) and an elastic member (64); the connecting ring groove (61) is provided at the end of the protective frame (41) and corresponds to the filter screen (42); the mounting hole (63) is provided on the inner wall of the connecting ring groove (61); the elastic member (64) is placed in the mounting hole (63) and one end is connected to the inner wall of the mounting hole (63); the other end of the elastic member (64) is connected to the clamping plate (62); the clamping plate (62) is slidably connected to the mounting hole (63); and the first inclined surface (72) and the second inclined surface (73) for contacting the edge of the filter screen (42) are respectively provided on both sides of the clamping plate (62).

5. A single direct drive sewing machine structure according to claim 4, characterized in that: An elastic plate (71) arranged obliquely is fixedly connected to the side wall of the clamping plate (62); an end of the elastic plate (71) away from the clamping plate (62) is used to abut against the end of the mounting hole (63).

6. The single direct drive sewing machine structure according to claim 3, characterized in that: The edge of the protection frame (41) is provided with a plurality of anti-slip grooves (43), and the plurality of anti-slip grooves (43) are evenly distributed along the axis of the protection frame (41).

7. The single direct drive sewing machine structure according to claim 3 is characterized in that: The fan blade (3) comprises a driving shaft (31) and a blade (32); the driving shaft (31) is rotatably connected to the support rod (21); and the blade (32) is fixed to the driving shaft (31) via a positioning bolt.

8. The single direct drive sewing machine structure according to claim 7, characterized in that: A placement hole (8) is provided in the middle of the filter screen (42), and the end of the drive shaft (31) is located in the placement hole (8).

Images