Embroidery machine color changing box

Abstract

The utility model discloses an embroidery machine color change box, including a screw connected to a linear closed-loop stepper motor, a screw nut connected to the screw, a slider radially connected to the screw nut, at least two guide rod groups parallel to the screw are provided on the slider, a sleeve push-pull rod coaxial with the screw is connected to the slider, and the rotary motion of the screw is converted into the linear motion of the sleeve push-pull rod by connecting the screw nut, the slider and the guide rod group. The rotary motion of the screw is converted into the linear motion of the sleeve push-pull rod by connecting the screw nut, the slider and the guide rod group, and the sleeve push-pull rod is precisely positioned in cooperation with the linear closed-loop stepper motor, and the screw and the sleeve push-pull rod are evenly stressed, thereby improving the life of the embroidery machine color change box.

Description

Technical Field

[0001] The utility model belongs to the technical field of embroidery machine color changing boxes, in particular to an embroidery machine color changing box. Background Art

[0002] In the embroidery machine color changing box technology, the end of the push-pull rod is connected to the frame crossbeam of the needle bar frame, which is used to control the push-pull rod to drive the needle bar frame to move left and right, and finally realize the left and right movement of the embroidery needle to change color.

[0003] Traditional embroidery machine color change box such as Figure 7 As shown, there is a box body 90, in which a screw rod 91 is arranged, a screw rod nut 92 is arranged on the screw rod 91, a slider 93 is arranged radially outside the screw rod nut 92, two guide rods 94 and a push-pull rod 95 are arranged on the slider 93, wherein there is a certain lateral distance between the screw rod 91 and the push-pull rod 95, when the push-pull rod 95 loads the needle bar frame, the screw rod 91 starts to rotate under the action of the motor, and the push-pull rod 95 needs a certain time to make a linear motion, which will cause a deviation between the embroidery needle and the needle hole, and accurate positioning cannot be achieved.

[0004] In addition, the traditional embroidery machine color change box is that the push-pull rod 95 is unilaterally loaded with the needle bar frame, and the screw rod 91 is unevenly stressed, which causes the screw rod 91 to wear out over time. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the purpose of the utility model is to provide an embroidery machine color changing box, which has the advantage of accurate positioning of the sleeve push-pull rod and can prolong the life of the embroidery machine color changing box.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A color-changing box for an embroidery machine comprises a screw connected to a linear closed-loop stepping motor, a screw nut being connected to the screw, a slider being radially connected to the screw nut, at least two guide rod groups being arranged on the slider and being parallel to the screw, a sleeve-type push-pull rod being connected to the slider and being coaxial with the screw, and the rotational motion of the screw being converted into the linear motion of the sleeve-type push-pull rod by the connection of the screw nut, the slider and the guide rod group.

[0008] The outer surface of the sleeve push-pull rod is provided with color-changing scale lines and corresponding color-changing scale values. The linear closed-loop stepping motor rotates to drive the lead screw to push and pull the sleeve push-pull rod to change different color-changing scale values ​​to achieve the purpose of color changing.

[0009] The screw nut comprises a track-shaped nut upper portion and a cylindrical nut lower portion, an upper slider hole and a lower slider hole respectively matched with the nut upper portion and the nut lower portion are provided in the slider, and the nut upper portion has a first surface and a second surface which are parallel.

[0010] It comprises a motor seat at one end and an end cover at the other end, wherein a guide rod group is connected between the motor seat and the end cover.

[0011] The number of the guide rod group is 4, including two pairs of guide rods penetrating the slider, and the axial centerline connection surface of each pair of guide rods passes through the axial centerline of the screw rod.

[0012] The two pairs of guide rods include a first guide rod, a second guide rod, a third guide rod, and a fourth guide rod, wherein one pair of guide rods is the first guide rod and the second guide rod, and another pair of guide rods is the third guide rod and the fourth guide rod, and the axial line connection surface of the first guide rod and the third guide rod is parallel to the axial line connection surface of the second guide rod and the fourth guide rod.

[0013] The connecting surface of the axial center lines of the first guide rod and the third guide rod is parallel to the first surface of the upper part of the nut.

[0014] A box body is connected between the motor seat and the end cover.

[0015] A bearing baffle is provided on the inner end surface of the motor seat.

[0016] The sleeve push-pull rod comprises a rod body and a connecting seat fixedly connected to a sliding block, and a movable cavity is arranged inside the sleeve push-pull rod for linear motion in cooperation with the screw rod.

[0017] The beneficial effects of the utility model are as follows: the rotational motion of the screw rod is converted into the linear motion of the sleeve push-pull rod by connecting the screw rod nut, the slider and the guide rod group, and the sleeve push-pull rod is accurately positioned in cooperation with the linear closed-loop stepping motor, and the screw rod and the sleeve push-pull rod are evenly stressed, thereby improving the life of the color-changing box of the embroidery machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 for Figure 1 There is no structural diagram of the linear closed-loop stepper motor connected;

[0020] Figure 3 for Figure 2 There is no structural diagram of the box;

[0021] Figure 4 for Figure 3 A cross-sectional view of

[0022] Figure 5 It is a schematic diagram of the structure of the sleeve type push-pull rod;

[0023] Figure 6 It is a structural schematic diagram of the screw nut;

[0024] Figure 7 It is a structural schematic diagram of a color changing box of an embroidery machine in the background technology. DETAILED DESCRIPTION

[0025] Below, an embroidery machine color changing box according to the present disclosure is described in detail with reference to the accompanying drawings. In order to make the purpose, technical scheme and advantages of the present utility model clearer, the technical scheme in the embodiment of the present disclosure will be clearly and completely described below in combination with the accompanying drawings in the embodiment of the present disclosure. Obviously, the described embodiment is a part of the embodiment of the present disclosure, not all of the embodiments.

[0026] Therefore, the following Figure 1-6 The detailed description of the embodiments of the present disclosure provided is not intended to limit the scope of the present disclosure claimed for protection, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0027] Unless otherwise defined in the context, the singular includes the plural. Throughout the specification, the terms "comprising", "having", etc. are used herein to specify the presence of the features, numbers, steps, operations, elements, parts or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, parts or combinations thereof.

[0028] In addition, even though terms including ordinal numbers such as "first," "second," etc. may be used to describe various components, these components are not limited by these terms, and these terms are only used to distinguish one element from other elements. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component without departing from the scope of the present disclosure.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the disclosed product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present disclosure.

[0030] The utility model discloses an implementation method of an embroidery machine color changing box, referring to Figure 1-4A lead screw 1 is connected to a linear closed-loop stepper motor 10, a lead screw nut 2 is connected to the lead screw 1, a slider 3 is radially connected to the lead screw nut 2, at least two guide rod groups 4 parallel to the lead screw 1 are provided on the slider 3, a sleeve push-pull rod 5 coaxial with the lead screw 1 is connected to the slider 3, and the rotational motion of the lead screw 1 is converted into the linear motion of the sleeve push-pull rod 5 through the connection of the lead screw nut 2, the slider 3 and the guide rod group 4.

[0031] In this embodiment, the sleeve push-pull rod 5 moves straight to the right for a distance, which requires the linear closed-loop stepper motor 10 to rotate and drive the lead screw 1 to achieve this. For example, the pitch of the lead screw 1 is 5 mm, and the linear closed-loop stepper motor 10 rotates clockwise and counterclockwise for 3 circles, and the sleeve push-pull rod 5 moves straight to the right and left for 15 mm. The number of rotations of the linear closed-loop stepper motor 10 is controlled by the control main board (no implementation diagram is given). When the linear closed-loop stepper motor 10 completes the rotation number signal sent by the control main board, the sleeve push-pull rod 5 will stay at the exact position, and the linear closed-loop stepper motor will stop, so that the sleeve push-pull rod 5 can be accurately positioned.

[0032] In the embroidery machine color changing box technology, the end of the sleeve push-pull rod 5 is connected to the frame crossbeam of the needle bar frame, which is used to control the sleeve push-pull rod 5 to drive the needle bar frame to move left and right and finally realize the left and right movement of the embroidery needle. No implementation examples of the needle bar frame, the frame crossbeam and the embroidery needle are given. The sleeve push-pull rod 5 is provided with a color changing mark. The different colors required by the embroidery needle are realized by the linear closed-loop stepping motor 10 rotating to drive the screw rod 1 to make the sleeve push-pull rod 5 push and pull the needle bar frame left and right.

[0033] In a specific embodiment, reference Figure 5 The embroidery needles have different colors such as 6 needles, 9 needles, 12 needles, 15 needles, 18 needles, and 21 needles. For example, it is a 9-needle embroidery machine. Correspondingly, the outer surface of the sleeve push-pull rod 5 is also provided with 9 evenly distributed color change marks, and the color change marks are color change scale lines 51 and corresponding color change scale values ​​52. For example, the original color is the color of needle No. 1, and now the target color is the color of needle No. 2. The linear closed-loop stepper motor 10 receives the rotation circle number signal sent by the control mainboard to rotate. For example, the pitch of the screw rod 1 is 5mm, the linear closed-loop stepper motor 10 rotates clockwise for 3 circles, the sleeve push-pull rod 5 moves 15mm to the right, and the interval distance between needle No. 1 and needle No. 2 in the embroidery needle is also 15mm. Therefore, the 3 circles of rotation of the linear closed-loop stepper motor 10 realize the color change from needle No. 1 to needle No. 2 in the embroidery needle.

[0034] A screw nut 2 is connected to the screw nut 2, a slider 3 is radially connected to the screw nut 2, and more than two guide rod groups 4 parallel to the screw 1 are provided on the slider 3. A linear closed-loop stepper motor 10 drives the screw 1 to rotate, and the guide rod group 4 is fixed between a motor seat 6 at one end and an end cover 7 at the other end. A bearing baffle 8 is provided on the inner end face of the motor seat 6. A box 9 is connected between the motor seat 6 and the end cover 7. The screw nut 2 and the slider 3 make a linear motion on the guide rod group 4, driving the sleeve push-pull rod 5 to make a linear motion. The sleeve push-pull rod 5 is coaxial with the screw 1, while there is a certain distance between the traditional screw and the push-pull rod, see Figure 7 , there is a problem that the push-pull rod is subjected to force on one side and the screw rod is worn, which causes a position deviation between the embroidery needle and the needle hole. The sleeve-type push-pull rod 5 of this embodiment is coaxial with the screw rod 1 and solves the above problems well.

[0035] See also Figure 4 The sleeve push-pull rod 5 includes a rod body 54 and a connecting seat 55 fixedly connected to the slider 3 , and a movable cavity 53 is provided in the sleeve push-pull rod 5 for linear motion in cooperation with the screw rod 1 .

[0036] In some embodiments, the number of guide rod groups 4 is 4, which are two pairs of guide rods passing through the slider 3. The axial connection surface of each pair of guide rods passes through the axial line of the screw rod 1 and the sleeve-type push-pull rod 5. The advantage of this structure is that the force on the screw rod 1 and the sleeve-type push-pull rod 5 is uniform.

[0037] See also Figure 1 , 3 Furthermore, the two pairs of guide rods include a first guide rod 41, a second guide rod 42, a third guide rod 43, and a fourth guide rod 44, the first guide rod 41 and the second guide rod 42 are one pair of guide rods, and the third guide rod 43 and the fourth guide rod 44 are another pair of guide rods, and the axial centerline connection surface of the first guide rod 41 and the third guide rod 43 is parallel to the axial centerline connection surface of the second guide rod 42 and the fourth guide rod 44. The advantage of this structure is that the force on the screw rod 1 and the sleeve-type push-pull rod 5 is uniform.

[0038] In some implementations, see Figure 3 , 4 6. The screw nut 2 includes a runway-shaped nut upper portion 21 and a cylindrical nut lower portion 22. The slider 3 is provided with a slider upper hole and a slider lower hole respectively adapted to the nut upper portion 21 and the nut lower portion 22. The nut upper portion 21 has a first surface 211 and a second surface 212 that are parallel. The nut upper portion 21 with the first surface 211 and the second surface 212 does not produce circumferential looseness in the slider 3, thereby improving the reliability of the fit between the screw nut 2 and the slider 3, and further improving the precise positioning of the sleeve-type push-pull rod 5.

[0039] Furthermore, the axial connection surfaces of the first guide rod 41 and the third guide rod 43 are parallel to the first surface 211 and the second surface 212 of the nut upper portion 21 , thereby improving the reliability of the fit between the sleeve push-pull rod 5 and the screw rod 1 , thereby improving the precise positioning of the sleeve push-pull rod 5 .

Claims

1. An embroidery machine color changing box, characterized in that: The invention comprises a screw (1) connected to a linear closed-loop stepping motor (10), wherein the screw (1) is connected to a screw nut (2), the screw nut (2) is radially connected to a slider (3), the slider (3) is provided with at least two guide rod groups (4) parallel to the screw (1), the slider (3) is connected to a sleeve push-pull rod (5) coaxial with the screw (1), and the rotational motion of the screw (1) is converted into the linear motion of the sleeve push-pull rod (5) by connecting the screw nut (2), the slider (3) and the guide rod group (4).

2. The embroidery machine color changing box according to claim 1, characterized in that: The outer surface of the sleeve push-pull rod (5) is provided with color-changing scale lines (51) and corresponding color-changing scale values ​​(52). The linear closed-loop stepping motor rotates to drive the lead screw (1) to push and pull the sleeve push-pull rod (5) to change different color-changing scale values ​​(52) to achieve the purpose of color change.

3. The embroidery machine color changing box according to claim 1, characterized in that: The screw nut (2) comprises a racetrack-shaped nut upper portion (21) and a cylindrical nut lower portion (22); the slider (3) is provided with a slider upper hole (31) and a slider lower hole (32) respectively adapted to the nut upper portion (21) and the nut lower portion (22); the nut upper portion (21) has a parallel first surface (211) and a second surface (212).

4. The embroidery machine color changing box according to claim 1, characterized in that: It comprises a motor base (6) at one end and an end cover (7) at the other end, wherein a guide rod group (4) is connected between the motor base (6) and the end cover (7).

5. The embroidery machine color changing box according to claim 4, characterized in that: The number of the guide rod group (4) is 4, including two pairs of guide rods that penetrate the slider (3), and the axial centerline connection surface of each pair of guide rods passes through the axial centerline of the screw rod (1).

6. The embroidery machine color changing box according to claim 5, characterized in that: The two pairs of guide rods include a first guide rod (41), a second guide rod (42), a third guide rod (43), and a fourth guide rod (44), wherein the first guide rod (41) and the second guide rod (42) are one pair of guide rods, and the third guide rod (43) and the fourth guide rod (44) are another pair of guide rods, and the axis centerline connection surface of the first guide rod (41) and the third guide rod (43) is parallel to the axis centerline connection surface of the second guide rod (42) and the fourth guide rod (44).

7. The color changing box for an embroidery machine according to claim 6, characterized in that: The connecting surface of the axial center lines of the first guide rod (41) and the third guide rod (43) is parallel to the first surface (211) of the nut upper part (21).

8. The embroidery machine color changing box according to claim 4, characterized in that: A box body (9) is connected between the motor base (6) and the end cover (7).

9. The embroidery machine color changing box according to claim 4, characterized in that: The inner end surface of the motor seat (6) is provided with a bearing baffle (8).

10. The embroidery machine color changing box according to claim 1, characterized in that: The sleeve-type push-pull rod (5) comprises a rod body (54) and a connecting seat (55) fixedly connected to the slider (3). The sleeve-type push-pull rod (5) is provided with a movable cavity (53) that cooperates with the screw rod (1) for linear motion.

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