Worm and gear type color changing device of embroidery machine

Abstract

The utility model provides a worm and gear type color changing device of an embroidery machine in the technical field of embroidery machines, which comprises a box body provided with a left side plate, a right side plate, a bottom plate and a top plate; two ends of the two limiting rods are respectively arranged on the left side plate and the right side plate and are parallel to each other; the moving block is arranged on the two limiting rods in a sleeving manner and performs limiting movement through the limiting rods; one end of the color changing rod is mounted on the moving block, and the other end of the color changing rod penetrates through the left side plate and is parallel to the limiting rod; one end of the screw rod is rotationally connected with the left side plate, and the middle part is in threaded connection with the moving block and is parallel to the limiting rod; the motor is arranged on the box body, and the power output end of the motor is connected with one end of the screw rod; one end of the worm is connected with the other end of the lead screw, and the other end is rotationally connected with the right side plate; and the worm gear is arranged in the box body and is meshed with the worm. The color changing device has the advantage that the position detection and installation convenience of the color changing device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery machines, in particular to a color-changing device for a worm and worm gear type embroidery machine. Background Art

[0002] An embroidery machine, also known as a computer embroidery machine, is the most advanced embroidery machine at present. It can realize high speed and high efficiency of traditional manual embroidery, and can also meet the requirements of "multi-level, multi-functional, unity and perfection" that cannot be achieved by manual embroidery. It is an electromechanical product embodying a variety of high-techs. With computer embroidery replacing manual embroidery, computer embroidery machines will also become the main machine types in the embroidery industry.

[0003] In order to ensure the beauty of embroidered products, generally multiple colors are required to represent different things, so embroidery threads of multiple colors need to be used; during the operation of the embroidery machine, it is necessary to adjust the position of the embroidery needle provided on the color-changing rod so that the embroidery needles threading different color embroidery threads are in the working position when needed.

[0004] Traditionally, a gearbox (gear set) is used to drive the displacement of the color-changing rod. In order to displace the embroidery needle to the correct position, it is necessary to accurately measure the moving distance (position) of the color-changing rod, and the moving distance can be calculated by the number of rotations of the gears in the gearbox; however, due to the structural characteristics of the gearbox, when the color-changing rod displaces one stroke, the gears in the gearbox need to rotate several circles, which is not convenient for intuitive detection (moving distance calculation), belonging to indirect detection, and the gearbox has a bulky structure, which not only increases the overall volume but also is inconvenient to install.

[0005] Therefore, how to provide a color-changing device for a worm and worm gear type embroidery machine to improve the position detection and installation convenience of the color-changing device has become an urgent technical problem to be solved. Summary of the Invention

[0006] The technical problem to be solved by the utility model is to provide a color-changing device for a worm and worm gear type embroidery machine to improve the position detection and installation convenience of the color-changing device.

[0007] The utility model is realized as follows: A color-changing device for a worm and worm gear type embroidery machine includes:

[0008] A box body, provided with a left side plate, a right side plate, a bottom plate and a top plate; the left side plate, the right side plate, the bottom plate and the top plate enclose to form a rectangle;

[0009] Two limiting rods, the two ends of which are respectively installed on the left side plate and the right side plate and are parallel to each other;

[0010] A moving block, sleeved on the two limiting rods and limited to move through the limiting rods;

[0011] A color-changing rod, one end of which is installed on the moving block, and the other end passes through the left side plate and is parallel to the limiting rod;

[0012] A lead screw, one end of which is rotatably connected to the left side plate, the middle part of which is threadedly connected to the moving block, and is parallel to the limiting rod;

[0013] A motor, which is arranged on the box body, and the power output end is connected to one end of the lead screw;

[0014] A worm, one end of which is connected to the other end of the lead screw, and the other end is rotatably connected to the right side plate;

[0015] A worm gear, which is arranged inside the box body and meshes with the worm.

[0016] Further, when the moving block moves from the left extreme position to the right extreme position, the worm drives the worm gear to rotate one week.

[0017] Further, it further includes:

[0018] A position detection sensor, which is arranged on the box body, and the detection end faces the worm gear.

[0019] Further, the position detection sensor is a magnetic encoder.

[0020] Further, a plurality of circular holes are symmetrically arranged on the left side plate and the right side plate, and the limiting rod, the lead screw and the worm are all installed on the box body through the circular holes.

[0021] The advantages of the present utility model are as follows:

[0022] By arranging the box body, the limiting rod, the moving block, the color-changing rod, the lead screw, the motor, the worm and the worm gear, the motor drives the lead screw installed inside the box body to rotate, the lead screw drives the color-changing rod to displace through the moving block, and the lead screw drives the worm gear to rotate through the worm during the rotation process, and when the moving block moves from the left extreme position to the right extreme position, the worm drives the worm gear to rotate one week; subsequently, the rotation angle of the worm gear is detected by the position detection sensor, and the position of the color-changing rod can be quickly judged, and the overall structure is greatly simplified compared with the traditional gear box, and finally the convenience of position detection and installation of the color-changing device is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following further describes the present utility model with reference to the accompanying drawings in conjunction with embodiments.

[0024] Figure 1 It is a schematic structural diagram of a worm and worm gear type color-changing device of an embroidery machine of the present utility model.

[0025] Figure 2This is the front view of a worm and worm gear type color changing device for an embroidery machine of the present utility model.

[0026] Marking description:

[0027] 100 - A worm and worm gear type color changing device for an embroidery machine, 1 - Box body, 2 - Limit rod, 3 - Moving block, 4 - Color changing rod, 5 - Lead screw, 6 - Motor, 7 - Worm, 8 - Worm gear, 11 - Left side plate, 12 - Right side plate, 13 - Bottom plate, 14 - Top plate, 111 - Round hole. Specific implementation manner

[0028] In an embodiment of the present utility model, by providing a screw type color changing device 100 for an embroidery machine, the technical problem in the prior art that a gear box is used to drive the displacement of the color changing rod, and the rotation number of the gears in the gear box is detected to calculate the moving distance. When the color changing rod displaces one stroke, the gears in the gear box need to rotate several circles, which is not convenient for intuitive detection, belongs to indirect detection, and has a bloated structure and inconvenient installation is solved, and the technical effect of greatly improving the convenience of position detection and installation of the color changing device is achieved.

[0029] The technical solution in the embodiment of the present utility model for solving the above problems has the following general idea: The lead screw 5 and the moving block 3 are linked to displace the color changing rod 4, and during the rotation of the lead screw 5, the worm 7 is linked to rotate the worm gear 8. Through the setting of the transmission ratio, when the moving block 3 moves from the left extreme position to the right extreme position, the worm gear 8 is exactly linked to rotate one week by the worm 7. By detecting the rotation angle of the worm gear 8, the position of the color changing rod 4 can be quickly judged, and the overall structure is greatly simplified compared with the traditional gear box, thereby improving the convenience of position detection and installation of the color changing device.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0031] Please refer to Figures 1 to 2 As shown, a preferred embodiment of a worm and worm gear type color changing device 100 for an embroidery machine of the present utility model includes:

[0032] A box body 1, provided with a left side plate 11, a right side plate 12, a bottom plate 13 and a top plate 14; the left side plate 11, the right side plate 12, the bottom plate 13 and the top plate 14 enclose to form a rectangle; the box body 1 is used to carry the color changing device 100 of the embroidery machine;

[0033] Two limit rods 2, with both ends respectively installed on the left side plate 11 and the right side plate 12 and being parallel to each other, for the limit sliding of the moving block 3;

[0034] A moving block 3 is sleeved on the two limiting rods 2 and is limited to move through the limiting rods 2 for driving the color-changing rod 4 to displace.

[0035] A color-changing rod 4 has one end installed on the moving block 3, and the other end passes through the left side plate 11 and is parallel to the limiting rod 2 for installing embroidery needles (not shown) for threading embroidery threads of different colors.

[0036] A lead screw 5 has one end rotatably connected to the left side plate 11, the middle part is threadedly connected to the moving block 3, and is parallel to the limiting rod 2 for driving the moving block 3 and the worm 7 to move.

[0037] A motor 6 is arranged on the box body 1, and the power output end is connected to one end of the lead screw 5; the motor 6 is a servo motor for providing power for the displacement of the color-changing rod 4.

[0038] A worm 7 has one end connected to the other end of the lead screw 5, and the other end is rotatably connected to the right side plate 12 for driving the worm gear 8 to rotate.

[0039] A worm gear 8 is arranged inside the box body 1 and meshes with the worm 7 for converting the position of the color-changing rod 4 into a rotation angle.

[0040] When the moving block 3 moves from the left extreme position to the right extreme position, the worm 7 drives the worm gear 8 to rotate one week.

[0041] It further includes:

[0042] A position detection sensor (not shown) is arranged on the box body 1, and the detection end faces the worm gear 8 for detecting the rotation angle of the worm gear 8.

[0043] The position detection sensor is a magnetic encoder.

[0044] A plurality of round holes 111 are symmetrically arranged on the left side plate 11 and the right side plate 12, and the limiting rod 2, the lead screw 5 and the worm 7 are all installed on the box body 1 through the round holes 111.

[0045] The working principle of the present utility model:

[0046] The motor 6 drives the lead screw 5 to rotate, the lead screw 5 drives the color-changing rod 4 to displace through the moving block 3. During the displacement of the moving block 3, the lead screw 5 drives the worm gear 8 to rotate through the worm 7, and the position detection sensor calculates the position of the color-changing rod 4 through the rotation angle of the worm gear 8.

[0047] In summary, the advantages of the present utility model are:

[0048] By setting a box body, a limiting rod, a moving block, a color-changing rod, a lead screw, a motor, a worm and a worm gear, the motor drives the lead screw installed in the box body to rotate. The lead screw drives the color-changing rod to move through the moving block. During the rotation of the lead screw, the worm drives the worm gear to rotate. When the moving block moves from the left extreme position to the right extreme position, the worm drives the worm gear to rotate one week. Subsequently, the rotation angle of the worm gear is detected by a position detection sensor, so that the position of the color-changing rod can be quickly judged. Moreover, the overall structure is greatly simplified compared with the traditional gear box, and finally the convenience of position detection and installation of the color-changing device is greatly improved.

[0049] Although the specific implementation manners of the present invention have been described above, those skilled in the art of this technology should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be covered by the scope protected by the claims of the present invention.

Claims

1. A color-changing device for a worm and worm wheel type embroidery machine, characterized in that: Comprising: A box body provided with a left side plate, a right side plate, a bottom plate and a top plate; The left side plate, right side plate, bottom plate and top plate enclose to form a rectangle; Two limiting rods, with both ends respectively installed on the left side plate and the right side plate and being parallel to each other; A moving block sleeved on the two limiting rods and limited to move through the limiting rods; A color-changing rod, with one end installed on the moving block and the other end passing through the left side plate and being parallel to the limiting rods; A lead screw, with one end rotatably connected to the left side plate, the middle part threadedly connected to the moving block and being parallel to the limiting rods; A motor provided on the box body, with the power output end connected to one end of the lead screw; A worm, with one end connected to the other end of the lead screw and the other end rotatably connected to the right side plate; A worm gear provided inside the box body and meshing with the worm; 2. The color-changing device of a worm and worm wheel type embroidery machine according to claim 1, characterized in that: When the moving block moves from the left extreme position to the right extreme position, the worm drives the worm gear to rotate one week through linkage; 3. The color-changing device of a worm and worm wheel type embroidery machine according to claim 1, characterized in that: Further comprising: A position detection sensor provided on the box body, with the detection end facing the worm gear; 4. The color-changing device of a worm and worm wheel type embroidery machine according to claim 3, characterized in that: The position detection sensor is a magnetic encoder; 5. The color-changing device of a worm and worm gear type embroidery machine according to claim 1, characterized in that: A plurality of round holes are symmetrically provided on the left side plate and the right side plate, and the limiting rods, lead screw and worm are all installed on the box body through the round holes.

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