Color changing device and computerized embroidery machine

Abstract

The utility model discloses a color changing device and a computerized embroidery machine. The color changing device comprises a color changing motor, a cylindrical cam shaft and a color changing box, the cylindrical cam shaft and the color changing motor are arranged up and down, the color changing box is provided with a containing cavity, and the color changing motor and the cylindrical cam shaft are arranged in the container cavity. A color changing motor and a cylindrical cam shaft in the color changing box are correspondingly arranged in the vertical direction, so that parts in the color changing box are compact in structure, and the length size of the color changing device is shortened; meanwhile, the color changing motor is positioned in the color changing box, so that the appearance of the whole color changing device is more attractive, and the attractive degree of the computerized embroidery machine is improved.

Description

Technical Field

[0001] This utility model generally relates to the field of computerized embroidery machine technology, and more particularly to a color-changing device and a computerized embroidery machine. Background Technology

[0002] Computerized embroidery machines, as industrial sewing equipment, have been widely used. In industrial sewing, especially in embroidery, it is often necessary to create colored patterns to make the products more aesthetically pleasing. This requires constantly changing the thread color during operation, a process known as color changing. To facilitate color changing on computerized embroidery machines, a color changing device is installed on the machine head. This device drives the needle bar holder to slide on the machine head, ensuring that the needle bar of the corresponding color is positioned above the embroidery position for embroidery.

[0003] However, existing color-changing devices have drawbacks: they are not compact in structure and are inconvenient to install on the main beam. Utility Model Content

[0004] This application aims to provide a color-changing device and a computerized embroidery machine, which at least makes the parts inside the color-changing box compact and shortens the length of the color-changing device.

[0005] This utility model provides a color-changing device, including: a color-changing motor, a cylindrical camshaft, and a color-changing box.

[0006] The cylindrical camshaft is positioned vertically above the color-changing motor; the color-changing box has a receiving cavity, and the color-changing motor and the cylindrical camshaft are disposed within the receiving cavity.

[0007] As an alternative implementation, a transmission assembly disposed within the accommodating cavity is also included, through which the color-changing motor causes the cylindrical camshaft to rotate.

[0008] In one possible implementation, the transmission assembly includes a first gear, a second gear, and a third gear. The first gear is connected to the output shaft of the color-changing motor, the second gear is connected to the cylindrical camshaft, and the third gear is connected to the inner surface of the side wall of the color-changing box. The third gear is disposed between the first gear and the second gear, and the third gear meshes with the first gear and the second gear.

[0009] As an alternative implementation, a motor mounting bracket is also provided within the accommodating cavity. The motor mounting bracket is detachably connected to the inner surface of the side wall of the color-changing box, and the motor mounting bracket is provided with a clearance groove for avoiding the first gear and / or the third gear.

[0010] As one possible implementation, the cylindrical cam includes a camshaft and a cam sleeve fitted onto the camshaft, wherein the diameter of the camshaft is between 14mm and 20mm.

[0011] As an implementation method, the cylindrical surface of the cam sleeve is provided with a curved groove, and a roller is provided in the curved groove, the diameter of the roller being between 7mm and 15mm.

[0012] As an alternative implementation, a sliding block connected to the roller is further included, with a guide post passing through the sliding block. The length direction of the guide post is parallel to the axial direction of the camshaft, and the dimension of the sliding block in the axial direction of the camshaft is between 32mm and 70mm. Both the sliding block and the guide post are located within the accommodating cavity.

[0013] As one possible implementation, a color-changing lever is connected to the sliding block. The color-changing lever passes through the color-changing box, with a portion of the lever located outside the box.

[0014] This utility model also provides a computerized embroidery machine, including the aforementioned color-changing device.

[0015] The above solution, by having the color-changing motor and cylindrical camshaft in the color-changing box arranged vertically, makes the structure of the parts in the color-changing box compact and shortens the length of the color-changing device. At the same time, the color-changing motor is located inside the color-changing box, making the appearance of the entire color-changing device more aesthetically pleasing, thereby improving the appearance of the computer embroidery machine and facilitating the installation of the color-changing device on the main beam. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the color-changing device provided in an embodiment of the present utility model;

[0018] Figure 2 Internal schematic diagram of the color-changing device provided in the embodiment of this utility model Figure 1 ;

[0019] Figure 3 Internal schematic diagram of the color-changing device provided in the embodiment of this utility model Figure 2 ;

[0020] Color-changing motor 10, cylindrical cam 20, camshaft 21, cam sleeve 22, curved groove 221, roller 30, transmission assembly 40, first gear 41, second gear 42, third gear 43, fourth gear 44;

[0021] Motor mounting base 50, clearance groove 51, sliding block 60, guide column 70, color changing pull rod 80, color changing box 90. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] At least see Figures 1-3 As shown, this utility model provides a color-changing device applied to a computerized embroidery machine. The color-changing device includes: a color-changing motor 10, a cylindrical cam 20, and a color-changing box 90.

[0025] The cylindrical cam 20 and the color-changing motor 10 are arranged vertically. The color-changing box 90 has a receiving cavity, and the color-changing motor 10 and the cylindrical cam 20 are arranged inside the receiving cavity.

[0026] Among them, such as Figure 1 and Figure 2 As shown, the color-changing box 90 has a color-changing motor 10 and a cylindrical cam 20 inside its accommodating cavity. The color-changing motor 10 and the cylindrical cam 20 are vertically aligned, and the dimension of the color-changing motor 10 in the left-right direction is smaller than that of the cylindrical cam 20 in the left-right direction. The output shaft end of the color-changing motor 10 is vertically aligned with the left end of the cylindrical cam 20, and there is a small gap between the right end of the color-changing motor 10 and the inner surface of the right side wall of the color-changing box 90. The left end of the cylindrical cam 20 is mounted on the right side wall of the color-changing box 90.

[0027] Of course, it is understandable that the dimensions of the color-changing motor 10 in the left-right direction can be equal to the dimensions of the cylindrical cam 20 in the left-right direction, and this embodiment does not impose any restrictions on this.

[0028] In practical applications, the color-changing device also includes a color-changing pull rod 80 and a transmission assembly 40. The transmission assembly 40 is disposed within the accommodating cavity, and the color-changing motor 10 rotates the cylindrical cam via the transmission assembly 40.

[0029] The cylindrical cam 20 includes a camshaft 21 and a cam sleeve 22 fitted onto the camshaft 21. A curved groove 221 is formed on the cylindrical surface of the cam sleeve 22; the curve of this groove is a spatial curve. A roller 30 is installed within the curved groove 221, and the roller 30 can move within the curved groove 221. A sliding block 60 is connected to the roller 30. The sliding block 60 and the roller 30 can be connected by bolts or screws.

[0030] like Figure 3As shown, the curved groove 221 has a preset shape, ensuring that the rotating cylindrical cam 20, via the roller 30, allows the sliding block 60 to reciprocate along the axial extension direction of the camshaft 21. One end of the color-changing lever 80 is connected to the sliding block 60, allowing the color-changing lever 80 to reciprocate along the axial extension direction of the camshaft 21. This allows the color-changing lever 80 to drive the movement of the needle bar holder on the machine head, thereby achieving color changing.

[0031] like Figure 2 As shown, a guide post 70 is also connected to the sliding block 60. The guide post 70 is located inside the color-changing box 90, and its length extension direction is parallel to the axis of the camshaft 21. The two ends of the guide post 70 are respectively installed on the left and right walls of the color-changing box 90. The two guide posts 70 are arranged vertically, and the color-changing pull rod 80 is located between the two guide posts 70. The arrangement of the guide posts 70 ensures that the movement of the sliding block 60 is limited to the direction of the camshaft 21's axis extension, preventing the sliding block 60 from getting stuck.

[0032] The color-changing motor 10 rotates the cylindrical cam 20 via the transmission assembly 40, in detail:

[0033] like Figure 3 As shown, the transmission assembly 40 includes a first gear 41, a second gear 42, a third gear 43, and a fourth gear 44. The first gear 41 is connected to the output shaft of the color-changing motor 10, the second gear 42 is connected to the left end of the cylindrical cam 20, and the third gear 43 and the fourth gear 44 are connected to the inner surface of the left side wall of the color-changing box 90 via a rotating shaft. The third gear 43 is positioned between the first gear 41 and the second gear 42, and meshes with both the first gear 41 and the second gear 42. The fourth gear 44 is located below the second gear 42 and meshes with it. When the output shaft of the color-changing motor 10 rotates, it drives the cylindrical cam 20 to rotate via the third gear 43 and the second gear 42.

[0034] In summary, this embodiment achieves a compact structure for the components within the color-changing box 90 by having the color-changing motor 10 and the cylindrical cam 20 arranged vertically in a corresponding manner, thereby shortening the length of the color-changing device. Simultaneously, the location of the color-changing motor 10 within the color-changing box 90 enhances the overall aesthetics of the color-changing device, improving the overall appearance of the computerized embroidery machine and facilitating its installation on the main beam.

[0035] As an alternative implementation, the color-changing device also includes a motor mounting base 50 disposed within the accommodating cavity. The motor mounting base 50 is detachably connected to the inner surface of the side wall of the color-changing box 90, and the motor mounting base 50 is provided with a clearance groove 51 for avoiding the first gear 41 and the third gear 43.

[0036] like Figure 2As shown, a motor mounting base 50 is provided between the left side wall of the color-changing box 90 and the color-changing motor 10. The motor mounting base 50 can be fastened to the left side wall of the color-changing box 90 with bolts, and the color-changing motor 10 is connected to the motor mounting base 50. In order to avoid interference between the motor mounting base 50 and the first gear 41 and the second gear 42, a clearance groove 51 is provided on the motor mounting base 50. The first gear 41 and the second gear 42 are set in the clearance groove 51, thereby avoiding interference between the gears and the motor mounting base 50.

[0037] Of course, it is understood that in some embodiments, the clearance groove 51 is only used to avoid the first gear 41 or the second gear 42.

[0038] As an alternative implementation, the diameter of the camshaft 21 is between 14mm and 20mm, and the diameter of the roller 30 is between 7mm and 15mm.

[0039] By increasing the diameter of the camshaft 21 and the roller 30, the fatigue life of the cylindrical cam 20 can be improved, the rotational stability of the cylindrical cam and the motion stability of the roller 30 can be improved, and the load-bearing capacity can be increased. At the same time, the contact surface between the cylindrical cam 20 and the roller 30 is increased, reducing the stress concentration per unit area, thereby reducing wear and improving durability.

[0040] As a possible implementation, the dimension of the slider 60 in the axial direction of the camshaft 21 is between 32mm and 70mm.

[0041] Increasing the size of the sliding block 60 can improve its structural strength and rigidity, enhance its load-bearing capacity, and help drive the color-changing tie rod 80 to reciprocate.

[0042] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A color-changing device, characterized in that, include: Color-changing motor (10); A cylindrical cam (20) is arranged vertically above and below the color-changing motor (10); The color-changing box (90) has a receiving cavity, and the color-changing motor (10) and the cylindrical cam (20) are disposed in the receiving cavity.

2. The color-changing device according to claim 1, characterized in that, It also includes a transmission assembly (40) disposed in the accommodating cavity, through which the color-changing motor (10) causes the cylindrical cam (20) to rotate.

3. The color-changing device according to claim 2, characterized in that, The transmission assembly (40) includes a first gear (41), a second gear (42), and a third gear (43). The first gear (41) is connected to the output shaft of the color-changing motor (10), the second gear (42) is connected to the cylindrical cam (20), and the third gear (43) is connected to the inner surface of the side wall of the color-changing box (90). A third gear (43) is provided between the first gear (41) and the second gear (42), and the third gear (43) meshes with the first gear (41) and the second gear (42).

4. The color-changing device according to claim 3, characterized in that, It also includes a motor mounting base (50) disposed in the accommodating cavity. The motor mounting base (50) is detachably connected to the inner surface of the side wall of the color changing box (90). The motor mounting base (50) is provided with a clearance groove (51) for avoiding the first gear (41) and / or the third gear (43).

5. The color-changing device according to any one of claims 1-4, characterized in that, The cylindrical cam (20) includes a camshaft (21) and a cam sleeve (22) fitted onto the camshaft (21), the diameter of which is between 14mm and 20mm.

6. The color-changing device according to claim 5, characterized in that, The cam sleeve (22) has a curved groove (221) on its cylindrical surface, and a roller (30) is provided in the curved groove (221). The diameter of the roller (30) is between 7mm and 15mm.

7. The color-changing device according to claim 6, characterized in that, It also includes a sliding block (60) connected to the roller (30). A guide post (70) is provided on the sliding block (60). The length direction of the guide post (70) is parallel to the axis direction of the camshaft (21). The dimension of the sliding block (60) in the axis direction of the camshaft (21) is between 32mm and 70mm. The sliding block (60) and the guide post (70) are both located within the accommodating cavity.

8. The color-changing device according to claim 7, characterized in that, The sliding block (60) is connected to a color-changing rod (80), which passes through the color-changing box (90), and part of the color-changing rod (80) is located outside the color-changing box (90).

9. A computerized embroidery machine, characterized in that, The color-changing device includes any one of claims 1-8.

Images