Stably-driven screw rod color changing box for embroidery machine
By designing a high-precision screw nut and nut seat matching structure and anti-axial series movement device in the screw change box of the embroidery machine, the stability and accuracy problems of the color change mechanism of the traditional embroidery machine are solved, and more efficient and reliable color change performance is achieved.
Patent Information
- Application Number
- CN202422070428.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The color change mechanism of traditional embroidery machines is prone to slip and wear when running at high speed, resulting in inaccurate color change and affecting the quality of the embroidery. At the same time, the matching accuracy between the screw and the nut and the prevention of axial series movement are also challenging.
A system including a screw color change box box, a drive motor, a screw, a screw nut and an anti-serial device are designed. By providing a first flange and arc surface structure on the outer periphery of the screw nut, the mating accuracy between the screw nut and the screw nut seat is improved, and an anti-axial series-moving device is provided at the end of the screw, including a variable diameter jacket tube and a variable diameter shaft, to ensure a stable connection between the screw rod and the driving motor spindle.
The connection accuracy between the screw nut and the screw nut seat is improved, preventing loosening, ensuring the stable operation of the color change mechanism, and effectively preventing axial series during the screw transmission, improving the color change accuracy and speed of the embroidery machine.
Smart Images
Figure CN222948611U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a screw rod color changing box for an embroidery machine, in particular to a screw rod color changing box for an embroidery machine with stable driving. Background Art
[0002] In modern embroidery machines, the color-changing mechanism is a key component for switching between different color wires. Traditional color-changing mechanisms usually use gear transmission or belt transmission, but these transmission methods are prone to slippage and wear when running at high speeds, resulting in inaccurate color changes and affecting the quality of embroidery. In order to improve the stability and reliability of the color-changing mechanism, a color-changing mechanism using screw transmission has emerged in recent years. Screw transmission has the advantages of high transmission accuracy and good stability, but it still has some technical difficulties in practical applications, such as the matching accuracy between the screw and the nut, and anti-axial stringing.
[0003] In addition, due to the continuous increase in the number of embroidery machine heads and the continuous updating of embroidery patterns, embroidery color changes are more frequent, and higher requirements are placed on color change accuracy and speed. Traditional embroidery machine color change screw boxes often have technical defects such as large cumulative errors and unstable driving when driving the color change screw. Utility Model Content
[0004] The utility model aims to provide a screw color changing box for an embroidery machine which is easy to install and has stable driving in view of the defects and shortcomings of the prior art.
[0005] A screw color change box for an embroidery machine with stable driving comprises a screw color change box body, one side of the screw color change box body is connected to a driving motor, the driving motor is connected to a screw through a main shaft, the screw is matched to a screw nut, the screw nut is connected to drive the embroidery machine color change pull rod to move forward and backward through a screw nut seat, the outer periphery of the screw nut is a tubular structure with a first flange at the end, the upper and lower sides of the first flange are mutually parallel first plane structures, the left and right sides are first arc surface structures connecting the first plane structure, the first plane structure is engaged with a second plane structure in a screw nut seat mounting hole, the first arc surface structure is engaged with a second arc surface structure in a screw nut seat mounting hole, thereby improving the matching accuracy between the screw nut and the screw nut seat to prevent loosening, and ensuring the stable operation of the color change mechanism. The screw end is provided with an anti-axial stringing device, and the anti-axial stringing device includes a left anti-axial stringing device and a right anti-axial stringing device.
[0006] The left-side anti-sequential movement device includes a reducer sleeve located at one end of the screw rod, the outer periphery of the reducer sleeve is sleeved with the first bearing and the screw rod sleeve, the inner hole of the reducer sleeve is sleeved with the main shaft of the drive motor, the screw rod sleeve is axially provided with a first reducer gap, and the side of the first reducer gap is provided with a bolt for controlling the size of the first reducer gap to ensure the stability of the connection between the screw rod and the main shaft of the drive motor to prevent loosening. The reducer sleeve is axially provided with a second reducer gap to further improve the stability of the connection between the screw rod and the main shaft of the drive motor to prevent loosening.
[0007] The first bearing and the screw sleeve are both installed in the motor seat, one side of the motor seat is connected to the drive motor, and the other side of the motor seat is connected to the screw color change box body. The side of the motor seat is provided with a mounting hole for passing a bolt, and the bolt is threadedly connected to the first axial diameter reduction gap of the screw sleeve, so that the bolt locks the screw sleeve to control the first diameter reduction gap to clamp the main shaft of the drive motor.
[0008] The right-side anti-sequential movement device includes a variable diameter shaft located at the other end of the screw rod, a first positioning end face is provided between the variable diameter shaft and the screw rod, the first positioning end face is fitted and connected to the second bearing, the outer periphery of the second bearing is matched and connected to the bearing seat, and the bearing seat is simultaneously connected to the third bearing, the outer periphery of the variable diameter shaft is sequentially sleeved with the second bearing, the third bearing, the first screw rod clamping sleeve and the hand wheel, the second bearing is provided with a second flange, the third bearing is provided with a third flange, the second flange and the third flange clamp the bearing seat, and the bearing seat is threadedly connected to the second mounting hole on the side of the screw rod color change box body through the first mounting hole. The second flange and the third flange clamp the bearing seat so that the second bearing, the third bearing and the bearing seat form a whole, and further cooperate with the first screw rod clamping sleeve and the hand wheel to prevent the first screw rod from loosening in the radial direction under the rotation drive of the hand wheel to ensure that the screw rod is prevented from loosening in the axial direction, thereby improving the movement stability of the color change pull rod connected to the screw rod nut seat driven by the screw rod.
[0009] The first screw rod jacket comprises an outer jacket and an inner jacket which are sleeved with each other, the inner jacket is radially provided with a first horizontal slit and a second horizontal slit, the outer jacket is provided with a third slit at the extension of the first slit and the second slit, the side of the third slit is provided with a third threaded hole for controlling the size of the slit, and the third threaded hole is connected with an adjusting bolt. The double jacket structure of the outer jacket and the inner jacket further ensures the radial stability of the connection between the first screw rod jacket and the screw rod.
[0010] The first flange side surface is provided with a fourth mounting hole which is fixedly connected to the screw nut seat by bolts, thereby improving the stability of the connection between the screw nut and the screw nut seat.
[0011] The screw nut seat is provided with two guide holes on the side of the screw nut seat mounting hole, and the first guide rod and the second guide rod are respectively installed in the two guide holes. The outer periphery of the first guide rod and the second guide rod are connected to the guide holes through linear bearings, thereby improving the stability of the first guide rod and the second guide rod in guiding the movement of the screw nut seat.
[0012] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: through the cooperation between the arc surface and the plane structure between the screw nut and the screw nut seat, the connection accuracy is improved to prevent loosening, thereby ensuring the stable operation of the color changing mechanism, and the anti-axial string movement device at the end of the screw rod is used to prevent axial string movement in the screw rod transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] FIG1 is a schematic diagram of the three-dimensional structure of a screw color-changing box for an embroidery machine with stable driving according to the utility model;
[0015] FIG2 is a schematic diagram of the exploded installation structure of a screw rod color changing box for an embroidery machine with stable drive according to the utility model;
[0016] FIG3 is a schematic diagram of the three-dimensional structure of the screw nut in the utility model;
[0017] FIG4 is a schematic diagram of the three-dimensional structure of the screw rod in the utility model;
[0018] FIG5 is a schematic diagram of the connection structure between the hand wheel and the first screw rod sleeve in the utility model;
[0019] FIG. 6 is a schematic diagram of the connection structure of the second bearing, the third bearing and the bearing seat in the present invention. DETAILED DESCRIPTION
[0020] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.
[0021] like Figure 1-6As shown, a screw color change box for an embroidery machine with stable driving comprises a screw color change box body 9, one side of the screw color change box body 9 is connected to a driving motor 1, the driving motor 1 is connected to a screw 8 through a main shaft, the screw 8 is matched to connect a screw nut 23, the screw nut 23 is connected to drive the embroidery machine color change pull rod 5 to move forward and backward through a screw nut seat 3, the outer periphery of the screw nut 23 is a tubular structure 34 with a first flange 29 at the end, the upper and lower sides of the first flange 29 are first plane structures 32 parallel to each other, the left and right sides are first arc surface structures 31 connecting the first plane structure 32, the first plane structure 32 is engaged with a second plane structure 25 in a screw nut seat mounting hole 28, the first arc surface structure 31 is engaged with a second arc surface structure 24 in a screw nut seat mounting hole 28, and an anti-axial stringing device is provided at the end of the screw, and the anti-axial stringing device includes a left anti-axial stringing device and a right anti-axial stringing device. A fourth mounting hole 30 is provided on the side of the first flange 29 and is fixedly connected to the screw nut seat 3 by bolts.
[0022] As a preferred structure, the left-side anti-sequential movement device includes a reducer sleeve 41 located at one end of the screw 8, the outer periphery of the reducer sleeve 41 is sleeved with the first bearing 13 and the screw sleeve 12, the inner hole of the reducer sleeve 41 is sleeved with the main shaft of the drive motor 1, the screw sleeve 12 is axially provided with a first reducer gap 11, and the side of the first reducer gap 11 is provided with a bolt for controlling the size of the first reducer gap; the reducer sleeve 41 is axially provided with a second reducer gap 33.
[0023] The right-side anti-sequential movement device includes a reducing shaft 42 located at the other end of the screw rod 8, and a first positioning end face 21 is provided between the reducing shaft 42 and the screw rod 8. The first positioning end face 21 is fitted and connected to the second bearing 15, and the outer periphery of the second bearing 15 is matched and connected to the bearing seat 16. The bearing seat 16 is also connected to the third bearing. The outer periphery of the reducing shaft 42 is sequentially sleeved with the second bearing 15, the third bearing 20, the first screw rod sleeve 19 and the handwheel 18. The second bearing 15 is provided with a second flange 14, and the third bearing 20 is provided with a third flange 17. The second flange 14 and the third flange 17 clamp the bearing seat 16, and the bearing seat 16 is threadedly connected to the second mounting hole 6 on the side of the screw rod color change box body 9 through the first mounting hole 22.
[0024] In order to further improve the stability of the screw installation, the first bearing 13 connected to the screw and the screw sleeve 12 are installed in the motor base 2. One side of the motor base 2 is connected to the drive motor 1, and the other side of the motor base 2 is connected to the screw color change box body 9. The side of the motor base 2 is provided with a mounting hole for passing a bolt, and the bolt is threadedly connected to the first axial diameter reducing gap 11 of the screw sleeve 12.
[0025] In order to further improve the stability of the radial installation of the screw rod, the first screw rod sleeve 19 includes an outer sleeve 35 and an inner sleeve 37 which are connected to each other. The inner sleeve 37 is radially provided with a first horizontal slit 38 and a second horizontal slit 39. The outer sleeve 35 is provided with a third slit 40 at the extension of the first slit 38 and the second slit 39. The side of the third slit 40 is provided with a third threaded hole 36 for controlling the size of the slit. The third threaded hole 36 is connected in conjunction with an adjusting bolt.
[0026] As a preferred structure, the screw nut seat 3 is provided with two guide holes 26 on the side of the screw nut seat mounting hole 28, and the first guide rod 7 and the second guide rod 4 are respectively installed in the two guide holes 26. The outer periphery of the first guide rod 7 and the second guide rod 4 are connected to the guide holes 26 through linear bearings 27.
[0027] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A screw color change box for an embroidery machine with stable drive, comprising a screw color change box body (9), one side of the screw color change box body (9) is connected to a drive motor (1), the drive motor (1) is connected to a screw (8) through a main shaft, the screw (8) is matched to be connected to a screw nut (23), the screw nut (23) is connected to the embroidery machine color change pull rod (5) through a screw nut seat (3) to drive the embroidery machine to move forward and backward, characterized in that: The outer periphery of the screw nut (23) is a tubular structure (34) with a first flange (29) at the end thereof; the upper and lower sides of the first flange (29) are first plane structures (32) parallel to each other; the left and right sides are first arc surface structures (31) connected to the first plane structure (32); the first plane structure (32) is engaged with the second plane structure (25) in the screw nut seat mounting hole (28); the first arc surface structure (31) is engaged with the second arc surface structure (24) in the screw nut seat mounting hole (28); and the end of the screw is provided with an anti-axial string movement device, which includes a left anti-axial string movement device and a right anti-axial string movement device.
2. The screw color changing box for an embroidery machine with stable driving according to claim 1, characterized in that: The left-side anti-sequential movement device comprises a reducer sleeve tube (41) located at one end of the screw rod (8); the outer circumference of the reducer sleeve tube (41) is sleeved with the first bearing (13) and the screw rod sleeve (12); the inner hole of the reducer sleeve tube (41) is sleeved with the main shaft of the drive motor (1); the screw rod sleeve (12) is axially provided with a first reducer gap (11); and the side of the first reducer gap (11) is provided with a bolt for controlling the size of the first reducer gap; the reducer sleeve tube (41) is axially provided with a second reducer gap (33).
3. The color-changing screw box for an embroidery machine with stable driving according to claim 2, characterized in that: The first bearing (13) and the screw sleeve (12) are both installed in the motor base (2); one side of the motor base (2) is connected to the drive motor (1), and the other side of the motor base (2) is connected to the screw color change box body (9).
4. The screw color changing box for an embroidery machine with stable driving according to claim 3, characterized in that: The side of the motor seat (2) is provided with a mounting hole for passing a bolt, and the bolt is threadedly connected to the first axial diameter-changing gap (11) of the screw rod sleeve (12).
5. The screw color changing box for an embroidery machine with stable driving according to claim 1, characterized in that: The right-side anti-sequential movement device comprises a variable diameter shaft (42) located at the other end of the screw rod (8), a first positioning end face (21) is provided between the variable diameter shaft (42) and the screw rod (8), the first positioning end face (21) is fitted and connected to the second bearing (15), the outer periphery of the second bearing (15) is fitted and connected to the bearing seat (16), and the bearing seat (16) is also connected to the third bearing, the outer periphery of the variable diameter shaft (42) is sequentially sleeved with the second bearing (15), the third bearing (20), the first screw rod sleeve (19) and the hand wheel (18), the second bearing (15) is provided with a second flange (14), the third bearing (20) is provided with a third flange (17), the second flange (14) and the third flange (17) clamp the bearing seat (16), and the bearing seat (16) is threadedly connected to the second mounting hole (6) on the side of the screw rod color change box body (9) through the first mounting hole (22).
6. The screw color changing box for an embroidery machine with stable driving according to claim 5, characterized in that: The first screw rod sleeve (19) comprises an outer sleeve (35) and an inner sleeve (37) which are sleeved with each other, the inner sleeve (37) is radially provided with a first horizontal slit (38) and a second horizontal slit (39), the outer sleeve (35) is provided with a third slit (40) at the extension of the first slit (38) and the second slit (39), the side of the third slit (40) is provided with a third threaded hole (36) for controlling the size of the slit, and the third threaded hole (36) is matched to connect with an adjusting bolt.
7. The screw color changing box for an embroidery machine with stable driving according to claim 1, characterized in that: A fourth mounting hole (30) is provided on the side surface of the first flange (29) and is fixedly connected to the screw rod nut seat (3) by means of bolts.
8. The screw color changing box for an embroidery machine with stable driving according to claim 1, characterized in that: The screw nut seat (3) is provided with two guide holes (26) on the side of the screw nut seat mounting hole (28), and the first guide rod (7) and the second guide rod (4) are respectively mounted in the two guide holes (26), and the outer circumferences of the first guide rod (7) and the second guide rod (4) are connected to the guide holes (26) via linear bearings (27).