Automatic spraying equipment for sewing machine shell

Abstract

The utility model provides sewing machine shell automatic spraying equipment which comprises a machine frame, two chain wheels are rotationally connected to the upper surface of the machine frame, a chain is connected to the two chain wheels, a hook used for hanging a sewing machine shell is detachably connected to the chain, and the sewing machine shell automatic spraying equipment further comprises stand columns located on the two sides of the hook. The stand column is connected with a supporting frame in a sliding mode through a power air cylinder, the supporting frame reciprocates in the height direction of the stand column through a guiding structure, a spray head is connected to the supporting frame, and the purpose of reducing the production cost is achieved.

Description

Technical Field

[0001] The utility model relates to a sewing machine, and in particular to an automatic spraying device for a sewing machine housing. Background Art

[0002] Currently, a Chinese patent with the authorization announcement number CN217190377U discloses a spraying device for a sewing machine head, which is characterized in that it includes a robot arm and a spray gun connected to the end of the robot arm. A fixed bracket is arranged above the robot arm. One side of the fixed bracket is connected in parallel with a rack bar. A guiding port is arranged on the side of the rack bar. A guide rail is arranged above the rack bar. A traction mechanism is arranged on the guide rail. A rotating assembly is connected below the traction mechanism. A hook is welded to the end of the rotating assembly. A hanging rod is hung on the hook. The end of the hanging rod is rigidly connected with a sewing machine head.

[0003] However, this spraying device for a sewing machine head sprays the sewing machine head by using a robot. In order to improve the spraying efficiency, usually a robot is arranged on each side of the sewing machine head, which will cause the problem of high production cost. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide an automatic spraying device for a sewing machine housing, which drives the spray head to reciprocate by using a cylinder, thereby greatly reducing the production cost.

[0005] To solve the above technical problems, the technical solution of the utility model is: an automatic spraying device for a sewing machine housing, including a frame. Two sprockets are rotatably connected to the upper surface of the frame. A chain is connected to the two sprockets. A hook for hanging a sewing machine housing is detachably connected to the chain. There are also columns located on both sides of the hook. The columns are slidably connected with a support frame through a power cylinder. The support frame reciprocates along the height direction of the columns through a guiding structure. A spray head is connected to the support frame.

[0006] To implement the above technical solution, the sewing machine housing is hung on the hook. By rotating the sprocket, the sewing machine housing moves along the length direction of the support frame. During this period, the power structure makes the spray head reciprocate along the height direction of the column. The spray head sprays the sewing machine housing. Moreover, there can be multiple spray heads on one support frame. By using a power cylinder to drive the support frame to reciprocate, the multiple spray heads can move synchronously to achieve the effect of uniform spraying, thereby greatly reducing the production cost while improving the production quality.

[0007] As a preferred embodiment of the present utility model, the guiding structure includes a slide rail and a sliding groove. The power cylinder is fixed to the upper end of the column. The power shaft of the power cylinder is fixedly connected to the support frame. The slide rail is fixed to the column, and the length direction of the slide rail is arranged along the height direction of the column. The sliding groove is formed on the support frame, and the slide rail is slidably connected to the sliding groove.

[0008] To achieve the above technical solution, when the power cylinder is started, the power shaft reciprocates along the height direction of the column. The slide rail is slidably connected to the sliding groove, so that the support frame can move more smoothly along the height direction of the column, thereby improving the quality of spraying.

[0009] As a preferred embodiment of the present utility model, a plurality of positioning posts are connected to the support frame. Positioning holes are formed in the positioning posts. The nozzle passes through the positioning holes, and a positioning structure is arranged between the positioning posts and the nozzle.

[0010] To achieve the above technical solution, the nozzle penetrates into the positioning hole, and then the nozzle is positioned through the positioning structure, so as to adjust the distance between the nozzle and the sewing machine housing, adapt to different production scenarios, and improve the practicability.

[0011] As a preferred embodiment of the present utility model, the positioning structure includes a positioning ring groove, a mounting hole and a U-shaped elastic sheet. A plurality of the positioning ring grooves are formed on the outer wall of the nozzle and arranged along the length direction of the nozzle. The mounting hole is formed on the inner wall of the positioning hole. Both ends of the U-shaped elastic sheet are fixed in the mounting hole, and the middle part of the U-shaped elastic sheet is embedded in the positioning ring groove.

[0012] To achieve the above technical solution, the nozzle is inserted into the positioning hole, and the middle part of the U-shaped elastic sheet is embedded in the positioning ring groove, so that the nozzle can rotate along its own axis to avoid the wire harness being broken. At the same time, when an axial force is applied to the nozzle, the inner wall of the positioning ring groove applies a force to the U-shaped elastic sheet, causing the U-shaped elastic sheet to move into the mounting hole. By continuing to apply a force, another positioning ring groove corresponds to the U-shaped elastic sheet, and the middle part of the U-shaped elastic sheet can be embedded in the positioning ring groove, thereby playing a role in limiting the nozzle.

[0013] As a preferred embodiment of the present utility model, a rotating hole is formed in the positioning post. The positioning post is rotatably connected to the support frame through the rotating hole, and the positioning post is connected to the support frame through a limiting structure.

[0014] To achieve the above technical solution, the support frame is inserted into the rotating hole. When the positioning post is rotated, the nozzle can rotate synchronously with the positioning post, thereby adjusting the spraying angle of the nozzle and improving the practicability.

[0015] As a preferred embodiment of the present utility model, the limiting structure includes a placement hole, an elastic member, a limiting post, and a limiting concave hole. A plurality of the placement holes are formed on the outer wall of the support frame and are evenly distributed along the axis of the support frame. The limiting post is slidably connected to the placement hole. The elastic member is located in the placement hole and is connected to the inner wall of the placement hole and the limiting post at both ends respectively. A plurality of the limiting concave holes are formed on the inner wall of the rotation hole. One end of the limiting post away from the elastic member is embedded in the limiting concave hole.

[0016] To implement the above technical solution, insert the support frame into the rotation hole so that the limiting posts correspond to the limiting concave holes. When a force is applied to the positioning post to overcome the friction between the limiting post and the limiting concave hole, the positioning post can be rotated. When the limiting post and the limiting concave hole correspond again, release the limiting post to achieve the positioning of the limiting post, that is, to achieve the limiting of the nozzle.

[0017] As a preferred embodiment of the present utility model, a partition is fixedly connected to the support frame, and a protective layer is connected to the partition. The nozzle passes through between adjacent protective layers.

[0018] To implement the above technical solution, during the spraying process of the nozzle, through the blocking effect of the protective layer and the partition, most of the sprayed plastic powder can be located inside the machine frame, thereby reducing the harm to workers.

[0019] As a preferred embodiment of the present utility model, a baffle is connected to the hook, and the baffle is located between the chain and the sewing machine housing.

[0020] To implement the above technical solution, through the blocking effect of the baffle, the amount of plastic powder sprayed on the chain is reduced, so that the chain is not easily jammed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the machine frame;

[0022] Figure 2 It is a schematic diagram of the position of the hook;

[0023] Figure 3 It is a schematic structural diagram of the column

[0024] Figure 4 It is a schematic cross-sectional diagram of the limiting structure;

[0025] Figure 5 It is a schematic cross-sectional diagram of the positioning structure.

[0026] Reference numerals: 1, frame; 2, hook; 21, baffle; 3, partition; 31, protective layer; 4, column; 41, power cylinder; 5, support frame; 51, guiding structure; 52, slide rail; 53, chute; 6, positioning post; 61, rotation hole; 7, limiting structure; 71, placement hole; 72, elastic member; 73, limiting post; 74, limiting concave hole; 8, positioning hole; 81, nozzle; 9, positioning structure; 91, positioning ring groove; 92, mounting hole; 93, U-shaped elastic sheet. Detailed implementation mode

[0027] The following further details the specific implementation mode of the present utility model in conjunction with the attached drawings, so that the technical solution of the present utility model is easier to understand and master.

[0028] An automatic spraying device for a sewing machine housing includes a frame 1. Two sprockets (not shown in the figure) are rotatably connected to the upper surface of the frame 1, and a chain (not shown in the figure) is connected to the two sprockets. The sprockets and the chain are prior art and will not be elaborated in this embodiment. The sprockets are driven by a servo motor (not shown in the figure), and the servo motor is fixed to the frame 1.

[0029] A hook 2 for hanging a sewing machine housing is detachably connected to the chain, and a baffle 21 is fixedly connected to the middle of the hook 2.

[0030] A vertically arranged partition 3 is fixedly connected to the support frame 5, and a protective layer 31 made of a PU fabric layer is connected to the partition 3. The two protective layers 31 are arranged opposite to each other.

[0031] Vertical columns 4 are provided on both sides of the frame 1. The column 4 is slidably connected with a support frame 5 through a power cylinder 41, and the power cylinder 41 is fixed to the upper end of the column 4. The support frame 5 reciprocates along the height direction of the column 4 through a guiding structure 51.

[0032] The guiding structure 51 includes a slide rail 52 and a chute 53. The power shaft of the power cylinder 41 is fixedly connected to the support frame 5. The slide rail 52 is fixed to the side wall of the column 4, and the length direction of the slide rail 52 is arranged along the height direction of the column 4. The chute 53 is opened on the support frame 5, and the slide rail 52 is slidably connected in the chute 53. When the power cylinder 41 is started, the power shaft drives the support frame 5 to move along the length direction of the slide rail 52, so that the movement of the support frame 5 is more stable.

[0033] There are three positioning posts 6 on the support frame 5. Two positioning posts 6 are located at both ends of the support frame 5, and one positioning post 6 is located in the middle of the support frame 5. A rotation hole 61 is opened on the positioning post 6, and the positioning post 6 is rotatably connected to the support frame 5 through the rotation hole 61; the positioning post 6 is connected to the support frame 5 through a limiting structure 7.

[0034] The limiting structure 7 includes a placement hole 71, an elastic member 72, a limiting post 73, and a limiting concave hole 74. Six placement holes 71 are formed on the outer wall of the support frame 5 and are evenly distributed along the axis of the support frame 5. The limiting post 73 is slidably connected to the placement hole 71. The elastic member 72 is located in the placement hole 71 and is connected to the inner wall of the placement hole 71 and the limiting post 73 at both ends respectively. Six limiting concave holes 74 are formed on the inner wall of the rotation hole 61, and the six limiting concave holes 74 are evenly distributed along the axis of the rotation hole 61. One end of the limiting post 73 away from the elastic member 72 is embedded in the limiting concave hole 74.

[0035] One end of the limiting post 73 away from the elastic member 72 is hemispherical; the elastic member 72 is a spring.

[0036] During installation, first, a thin plastic tube is sleeved on the support frame 5 so that the limiting post 73 is located in the placement hole 71. Then, the positioning post 6 is sleeved on the thin plastic tube. The positioning post 6 is moved to the position of the limiting post 73, and then the thin plastic tube is pulled out. In this way, the limiting post 73 can penetrate into the limiting concave hole 74 under the elastic force of the elastic member 72, and the positioning of the positioning post 6 is realized through the action of friction. An acting force is applied to the positioning post 6 to make the positioning post 6 rotate along the axis of the rotation hole 61, overcoming the friction between the limiting post 73 and the limiting concave hole 74, so that the positioning post 6 can rotate, and the positioning post 6 can be positioned once every 60° rotation.

[0037] A positioning hole 8 is formed in the positioning post 6, the nozzle 81 passes through the positioning hole 8, and a positioning structure 9 is arranged between the positioning post 6 and the nozzle 81. The nozzle 81 passes through between the two protective layers 31 and is aligned with the sewing machine housing.

[0038] The positioning structure 9 includes a positioning ring groove 91, an installation hole 92, and a U-shaped elastic sheet 93. A plurality of positioning ring grooves 91 are formed on the outer wall of the nozzle 81 and are arranged along the length direction of the nozzle 81. The positioning ring groove 91 is coaxially arranged with the nozzle 81. The installation hole 92 is formed in the inner wall of the positioning hole 8, and both ends of the U-shaped elastic sheet 93 are fixed in the installation hole 92 and the middle part of the U-shaped elastic sheet 93 is embedded in the positioning ring groove 91.

[0039] Certainly, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An automatic spraying device for a sewing machine casing, comprising a frame (1), wherein the upper surface of the frame (1) is rotatably connected to two sprockets, the two sprockets are connected to a chain, and the chain is detachably connected to a hook (2) for hanging the sewing machine casing, wherein: It also includes columns (4) located on both sides of the hook (2), the columns (4) are slidably connected to a support frame (5) through a power cylinder (41), the support frame (5) reciprocates along the height direction of the columns (4) through a guide structure (51), and a nozzle (81) is connected to the support frame (5).

2. The automatic spraying equipment for sewing machine casing according to claim 1 is characterized in that: The guiding structure (51) comprises a slide rail (52) and a slide groove (53); the power cylinder (41) is fixed to the upper end of the column (4); the power shaft of the power cylinder (41) is fixedly connected to the support frame (5); the slide rail (52) is fixed to the column (4); the length direction of the slide rail (52) is arranged along the height direction of the column (4); the slide groove (53) is opened on the support frame (5); and the slide rail (52) is slidably connected in the slide groove (53).

3. The automatic spraying equipment for sewing machine casing according to claim 2 is characterized in that: A plurality of positioning columns (6) are connected to the support frame (5), positioning holes (8) are provided on the positioning columns (6), the nozzles (81) pass through the positioning holes (8), and a positioning structure (9) is provided between the positioning columns (6) and the nozzles (81).

4. The automatic spraying equipment for sewing machine casing according to claim 3 is characterized in that: The positioning structure (9) comprises a positioning ring groove (91), a mounting hole (92) and a U-shaped spring piece (93); a plurality of the positioning ring grooves (91) are provided on the outer wall of the nozzle (81) and are arranged along the length direction of the nozzle (81); the mounting hole (92) is provided on the inner wall of the positioning hole (8); two ends of the U-shaped spring piece (93) are fixed in the mounting hole (92) and the middle part of the U-shaped spring piece (93) is embedded in the positioning ring groove (91).

5. The automatic spraying equipment for sewing machine casing according to claim 3 or 4, characterized in that: The positioning column (6) is provided with a rotation hole (61), and the positioning column (6) is rotatably connected to the support frame (5) through the rotation hole (61). The positioning column (6) is connected to the support frame (5) through a limiting structure (7).

6. The automatic spraying equipment for sewing machine casing according to claim 5, characterized in that: The limiting structure (7) comprises a placement hole (71), an elastic member (72), a limiting column (73) and a limiting recessed hole (74); a plurality of the placement holes (71) are provided on the outer wall of the support frame (5) and are evenly distributed along the axis of the support frame (5); the limiting column (73) is slidably connected to the placement hole (71); the elastic member (72) is located in the placement hole (71) and its two ends are respectively connected to the inner wall of the placement hole (71) and the limiting column (73); a plurality of the limiting recessed holes (74) are provided on the inner wall of the rotating hole (61); and one end of the limiting column (73) away from the elastic member (72) is embedded in the limiting recessed hole (74).

7. The automatic spraying equipment for sewing machine casing according to claim 6, characterized in that: The support frame (5) is fixedly connected to a partition (3), the partition (3) is connected to a protective layer (31), and the nozzle (81) passes through between adjacent protective layers (31).

8. The automatic spraying equipment for sewing machine casing according to claim 1 is characterized in that: The hook (2) is connected with a baffle (21), and the baffle (21) is located between the chain and the sewing machine casing.

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