A yarn printing and dyeing difference detection machine with a yarn taking-up function

Abstract

A yarn printing and dyeing difference detection machine with a wire drawing function belongs to the technical field of yarn printing and dyeing difference detection. In order to solve the problem that the traditional yarn printing and dyeing difference detection machine, i.e., the light source box, is not convenient for transporting the yarn through the winding structure, part of the transported yarn is placed inside the light source box for detection, and sampling detection is performed by detecting different parts of different groups of yarns, so that the accuracy of the detection data is higher. The traditional yarn printing and dyeing difference detection machine, i.e., the light source box, is not convenient for stretching the yarn at the same time to detect the color difference of the yarn in the stretched state; the present application forms two sets of yarn winding sleeves on the outside of the yarn winding sleeve and the second rotating shaft, so that the yarn forms a transportation condition through the cooperation of the wire feed slot and the vertical slot, and the transported yarn part is placed inside the detection light source box for color difference detection, and while the yarn is being transported, the downward pressure component presses down to stretch the yarn to detect the color difference of the yarn after stretching.

Description

Technical Field

[0001] The invention relates to the technical field of yarn printing and dyeing difference detection, in particular to a yarn printing and dyeing difference detection machine with a yarn taking-up function. Background Art

[0002] Yarns are colored during the dyeing process, and some color variations can occur after dyeing. This is typically detected using a light box, also known as a standard light box. This lighting box can simulate a variety of ambient lighting conditions and is used to detect color deviations. It's commonly used in color management for industries like textiles, dyeing, printing, and plastics.

[0003] The traditional yarn printing and dyeing difference detection machine, that is, the light source box, is not convenient for transporting the yarn through the winding structure, so that part of the transported yarn is tested inside the light source box. By testing different parts of different groups of yarns for sampling testing, the accuracy of the test data is correspondingly higher. The traditional yarn printing and dyeing difference detection machine, that is, the light source box, is not convenient for stretching the yarn at the same time to detect the color difference of the yarn in the stretched state.

[0004] In order to solve the above problems, a yarn printing and dyeing difference detection machine with a yarn taking-up function is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a yarn printing and dyeing difference detection machine with a wire drawing function, which solves the problem that the traditional yarn printing and dyeing difference detection machine in the background technology, that is, the light source box is not convenient for transporting the yarn through the winding structure, so that part of the transported yarn is inside the light source box for detection, and sampling detection is performed by detecting different parts of different groups of yarns. Correspondingly, the accuracy of the detection data is higher. The traditional yarn printing and dyeing difference detection machine, that is, the light source box, is not convenient for stretching the yarn at the same time to detect the color difference of the yarn in the stretched state.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a yarn printing and dyeing difference detection machine with a line drawing function, comprising a detection light source box and a detection cavity provided inside the detection light source box, wherein the yarn is placed inside the detection cavity and is detected by turning on different lights inside the detection light source box, wherein fixed bars are provided at the lower ends of both sides of the detection light source box, and a first rotating shaft is movably provided on the upper end of one group of the fixed bars, a yarn winding sleeve is suitably provided on the outer side of the first rotating shaft, and multiple groups of the yarn winding sleeve and the first rotating shaft are provided, and a first rotating shaft is movably provided on the upper end of another group of the fixed bars, and a second rotating shaft is suitably provided on the outer side of this group of the first rotating shaft, and the number of groups of the second rotating shaft is equal to the number of groups of the yarn winding sleeve;

[0007] Wire feed slots are also provided on both sides of the detection light source box, and vertical slots are provided at the upper and lower ends of the wire feed slots, and the wire feed slots and the vertical slots are connected, and the number of vertical slots corresponds to the number of second rotating shafts and yarn winding sleeves. A driving motor is provided at the lower end of the first rotating shaft through an axis connection, and the number of driving motors corresponds to the number of first rotating shafts. A downward pressure component is provided at the upper end of the interior of the detection light source box, and the number of downward pressure components corresponds to the number of driving motors. An electrical linkage component is provided inside one group of the fixed bars, and the electrical linkage component is located directly below the second rotating shaft. Two groups of yarn winding sleeves mounted on the outside of the first rotating shaft and the second rotating shaft are used to transmit yarn. The yarn is continuously transported inside the detection cavity. During the transportation process, printing and dyeing difference detection is performed at different positions. While the yarn is being transported, the downward pressure component presses down to stretch the yarn for printing and dyeing difference detection.

[0008] Furthermore, the driving motor is connected to the first rotating shaft through a shaft, a first pulley is provided on the outside of the shaft, a fourth pulley is provided on one side of the first pulley through a belt transmission, a first meshing wheel is provided on the upper end of the fourth pulley through a shaft, a second meshing wheel is meshed with one side of the first meshing wheel, a second pulley is provided on one end of the driving motor through a shaft, a third pulley is provided on one side of the second pulley through a belt transmission, and the third pulley is connected to the second rotating shaft through a shaft.

[0009] Furthermore, the down-pressing assembly includes a down-pressing strip embedded in the upper end of the detection light source box, a tooth groove is provided on one side of the down-pressing strip, a driven wheel is meshed on one side of the tooth groove, and one side of the driven wheel is connected to the second meshing wheel through an axis, and a mating groove is provided at the lower end of the down-pressing strip.

[0010] Furthermore, a movable round block is movably arranged inside the matching groove, a second motor is connected to a through shaft on one side of the movable round block, and the second motor is fixedly arranged inside the matching groove, a connecting strip is provided at the lower end of the movable round block, a fixed plate is provided at the lower end of the connecting strip, a circular plate is provided at the lower end of the fixed plate, and two groups of circular plates are provided, and a movable shaft is movably arranged between the two groups of circular plates.

[0011] Furthermore, a group of the driving motor, the pressing component, the electrical linkage component, the yarn winding sleeve, the second rotating shaft, the vertical slot and the two groups of the first rotating shafts form a functional structure for detecting yarn printing and dyeing differences.

[0012] Furthermore, an interlocking groove is opened inside the first rotating shaft, and two groups of interlocking grooves are provided. A first interlocking strip is interlocked inside the interlocking groove. An arc-shaped head is provided at the upper end of the first interlocking strip, and an interlocking column is provided on one side of the arc-shaped head. The interlocking column is interlocked inside the first rotating shaft, and a connecting spring is provided on the outside of the interlocking column.

[0013] Furthermore, a second engaging strip is embedded inside the second rotating shaft, a matching block is provided on one side of the second engaging strip, the matching block is embedded inside the second rotating shaft, a spring guide column is provided on one side of the matching block, and multiple groups of spring guide columns are provided, and the multiple groups of spring guide columns are embedded inside the second rotating shaft, and two groups of second engaging strips are provided.

[0014] Furthermore, a first motor is arranged between the two groups of second interlocking strips, a telescopic assembly is arranged at the upper end of the first motor through an axis connection, a lifting block is arranged at the upper end of the telescopic assembly, a tilting head is arranged at the upper end of the lifting block, and the upper end of the tilting head matches the lower ends of the two groups of second interlocking strips.

[0015] Furthermore, the electrical linkage component includes a first rotating wheel arranged on the outside of the connecting shaft of the third pulley and the second rotating shaft, a second rotating wheel is meshed with one side of the first rotating wheel, a round head column is arranged on the outside of the upper end shaft of the second rotating wheel, an electrical block is arranged on the outside of the round head column, the electrical block is fixedly arranged inside the detection light source box, and the round head column, the electrical block and the first motor are electrically connected.

[0016] Furthermore, the telescopic assembly includes a fixed column and a telescopic column embedded in the fixed column. A limit strip is provided on the outside of the telescopic column, and two groups of limit strips are provided. The two groups of limit strips are embedded in the fixed column. A threaded column is provided at the upper end of the telescopic column, and the thread of the threaded column is provided inside the jacking block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a yarn printing and dyeing difference detection machine with a wire drawing function. The present application sets two sets of yarn winding sleeves on the outer side of the yarn winding sleeve and the second rotating shaft, so that the yarn forms a transportation condition through the cooperation of the wire feed slot and the vertical slot. The transported yarn part is in the detection light source box for color difference detection, and while the yarn is being transported, the down-pressing component presses down to stretch the yarn to detect the color difference of the stretched yarn, which solves the problem that the traditional yarn printing and dyeing difference detection machine, i.e., the light source box is not convenient for transporting the yarn through the winding structure, so that part of the transported yarn is in the light source box for detection, and sampling detection is performed by detecting different parts of different groups of yarns. Correspondingly, the accuracy of the detection data is higher. The traditional yarn printing and dyeing difference detection machine, i.e., the light source box is not convenient for stretching the yarn at the same time to detect the color difference of the yarn in the stretched state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the electrical linkage assembly, the downward pressure assembly, and the drive motor structure of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the pressing component of the present invention;

[0022] Figure 4 This is a schematic diagram of the planar cross-sectional structure of the fixing bar of the present invention;

[0023] Figure 5 This is a schematic diagram of the second rotation axis plane structure of the present invention;

[0024] Figure 6 Schematic diagram of the electrical linkage assembly structure of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the telescopic assembly of the present invention.

[0026] In the figure: 1. Detection light source box; 2. Detection chamber; 3. Wire feed slot; 4. Vertical slot; 5. Fixed bar; 51. Yarn winding sleeve; 52. First rotating shaft; 521. Fitting slot; 522. First fitting bar; 523. Arc head; 524. Fitting column; 525. Connecting spring; 53. Second rotating shaft; 531. First motor; 532. Telescopic assembly; 5321. Fixed column; 5322. Telescopic column; 5323. Limiting bar; 5324. Threaded column; 533. Lifting block; 534. Tilt head; 535. Second fitting bar; 536. Matching Block; 537, spring guide column; 6, electrical linkage assembly; 61, first rotating wheel; 62, second rotating wheel; 63, round head column; 64, electrical block; 7, pressing assembly; 71, pressing strip; 72, tooth groove; 73, driven wheel; 74, matching groove; 75, second motor; 76, movable round block; 77, connecting strip; 78, fixed plate; 79, circular plate; 791, movable shaft; 8, driving motor; 81, first pulley; 82, second pulley; 83, third pulley; 84, fourth pulley; 85, first meshing wheel; 86, second meshing wheel. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In order to solve the problem that the traditional yarn printing and dyeing difference detection machine, i.e. the light source box, is not convenient for transporting the yarn through the winding structure, part of the transported yarn is placed inside the light source box for detection, and sampling detection is performed by detecting different parts of different groups of yarns. Correspondingly, the accuracy of the detection data is higher. The traditional yarn printing and dyeing difference detection machine, i.e. the light source box, is not convenient for stretching the yarn at the same time to detect the color difference of the yarn in the stretched state. Figure 1-Figure 5 As shown, the following preferred technical solutions are provided:

[0029] A yarn printing and dyeing difference detection machine with a line-winding function comprises a detection light source box 1 and a detection cavity 2 opened inside the detection light source box 1. The yarn is placed inside the detection cavity 2 and is detected by turning on different lights inside the detection light source box 1. Fixed bars 5 are provided at the lower ends of both sides of the detection light source box 1, and a first rotating shaft 52 is movably provided on the upper end of one group of fixed bars 5. A yarn winding sleeve 51 is suitably provided on the outer side of the first rotating shaft 52, and multiple groups of yarn winding sleeves 51 and first rotating shafts 52 are provided. The upper end of the fixed bar 5 of another group is movably provided with the first rotating shaft 52, and a second rotating shaft 53 is suitably provided on the outer side of this group of first rotating shafts 52. The number of groups of the second rotating shafts 53 is equal to the number of groups of the yarn winding sleeves 51. Wire feed slots 3 are also provided on both sides of the detection light source box 1. Vertical slots 4 are provided at the upper and lower ends of the wire feed slots 3, and the wire feed slots 3 and The vertical slots 4 are connected, and the number of vertical slots 4 corresponds to the number of second rotating shafts 53 and yarn winding sleeves 51. The lower end of the first rotating shaft 52 is provided with a drive motor 8 through an axis connection, and the number of drive motors 8 corresponds to the number of first rotating shafts 52. A downward pressure component 7 is provided at the upper end of the interior of the detection light source box 1, and the number of downward pressure components 7 corresponds to the number of drive motors 8. An electrical linkage component 6 is provided inside a group of fixed bars 5, and the electrical linkage component 6 is located directly below the second rotating shaft 53. The two groups of yarn winding sleeves 51 mounted on the outside of the first rotating shaft 52 and the second rotating shaft 53 are used to transmit yarn. The yarn is continuously transported inside the detection chamber 2. During the transportation process, printing and dyeing difference detection is performed at different positions. While the yarn is being transported, the downward pressure component 7 presses down to stretch the yarn for printing and dyeing difference detection.

[0030] The driving motor 8 is connected to the first rotating shaft 52 through a shaft, and a first pulley 81 is provided on the outer side of the shaft. A fourth pulley 84 is provided on one side of the first pulley 81 through a belt transmission connection. A first meshing wheel 85 is provided on the upper end of the fourth pulley 84 through a shaft connection. A second meshing wheel 86 is provided on one side of the first meshing wheel 85. A second pulley 82 is provided on one end of the driving motor 8 through a shaft connection. A third pulley 83 is provided on one side of the second pulley 82 through a belt transmission connection. The third pulley 83 is connected to the second rotating shaft 53 through a shaft. The pressing assembly 7 includes a lower pressing bar 71 which is embedded in the upper end of the detection light source box 1. A tooth groove 72 is provided on one side of the lower pressure bar 71, and a driven wheel 73 is meshed on one side of the tooth groove 72. One side of the driven wheel 73 is connected to the second meshing wheel 86 through an axis. A matching groove 74 is provided at the lower end of the lower pressure bar 71, and a movable round block 76 is movably provided inside the matching groove 74. A second motor 75 is connected to one side of the movable round block 76 through the shaft, and the second motor 75 is fixedly provided inside the matching groove 74. A connecting strip 77 is provided at the lower end of the connecting strip 77, and a fixed plate 78 is provided at the lower end of the fixed plate 78. A circular plate 79 is provided at the lower end of the fixed plate 78, and two groups of circular plates 79 are provided, and a movable shaft 791 is movably provided between the two groups of circular plates 79.

[0031] A group of driving motors 8, pressing components 7, electrical linkage components 6, yarn winding sleeves 51, second rotating shafts 53, vertical slots 4 and two groups of first rotating shafts 52 form a functional structure for detecting yarn printing and dyeing differences. The first rotating shaft 52 is provided with a fitting groove 521, and two groups of fitting grooves 521 are provided. A first fitting strip 522 is fitted inside the fitting groove 521. An arc-shaped head 523 is provided at the upper end of the first fitting strip 522. A fitting column 524 is provided on one side of the arc-shaped head 523. The fitting column 524 is fitted inside the first rotating shaft 52. A connecting spring 525 is provided on the outer side of the fitting column 524. A second fitting strip 522 is fitted inside the second rotating shaft 53. 35. A matching block 536 is provided on one side of the second engaging strip 535, and the matching block 536 is engaged with the inside of the second rotating shaft 53. A spring guide column 537 is provided on one side of the matching block 536, and multiple groups of spring guide columns 537 are provided. The multiple groups of spring guide columns 537 are engaged with the inside of the second rotating shaft 53. Two groups of second engaging strips 535 are provided, and a first motor 531 is provided between the two groups of second engaging strips 535. The upper end of the first motor 531 is connected with a telescopic component 532 through an axis. The upper end of the telescopic component 532 is provided with a lifting block 533. The upper end of the lifting block 533 is provided with a tilting head 534. The upper end of the tilting head 534 matches the lower end of the two groups of second engaging strips 535.

[0032] Specifically, a group of yarn winding sleeves 51 and the second rotating shaft 53 are sleeved on the outside of the corresponding first rotating shaft 52. At this time, one end of the yarn on the outside of the second rotating shaft 53 is taken and embedded in the wire feed groove 3, and this end is wound on the outside of the yarn winding sleeve 51. At this time, one end of the yarn is located inside a group of vertical grooves 4 and is driven by the driving motor 8. At this time, the second pulley 82, the third pulley 83 and the second rotating shaft 53 rotate, thereby driving the second rotating shaft 53 and the yarn winding sleeve 51 to rotate, so that the yarn displays different line segments inside the detection chamber 2. By setting multiple groups of yarn winding sleeves 51 and second rotating shafts 53, multiple groups of yarns can be wound. The segment is demonstrated, and by checking different positions of a roll of yarn, the printing and dyeing differences of the yarn are sampled and detected. When the second pulley 82 rotates, the first pulley 81, the fourth pulley 84, the first meshing wheel 85, the second meshing wheel 86 and the driven wheel 73 are driven to rotate at the same time. At this time, the lower pressure bar 71 is driven down, and the connecting bar 77 is also driven down. The descending movable shaft 791 will contact the yarn directly below it, causing a tensile force on the yarn, and then the color difference of the stretched yarn is detected. The second motor 75 drives the connecting bar 77 and the movable shaft 791 to rotate, changing the downward pressure on the yarn, thereby performing yarn color difference detection in multiple situations.

[0033] In order to solve the technical problem of how to make the winding structure more stable, such as Figure 6-Figure 7 As shown, the following preferred technical solutions are provided:

[0034] The electrical linkage assembly 6 includes a first rotating wheel 61 arranged on the outside of the connecting shaft between the third pulley 83 and the second rotating shaft 53, a second rotating wheel 62 is meshed with one side of the first rotating wheel 61, a round head column 63 is arranged on the outside of the upper end shaft of the second rotating wheel 62, an electrical block 64 is arranged on the outside of the round head column 63, the electrical block 64 is fixedly arranged inside the detection light source box 1, the round head column 63, the electrical block 64 and the first motor 531 are electrically connected, the telescopic assembly 532 includes a fixed column 5321 and a telescopic column 5322 embedded in the fixed column 5321, a limit strip 5323 is arranged on the outside of the telescopic column 5322, and two groups of limit strips 5323 are provided, the two groups of limit strips 5323 are embedded in the fixed column 5321, a threaded column 5324 is provided on the upper end of the telescopic column 5322, and the threaded column 5324 is threadedly arranged inside the jacking block 533.

[0035] Specifically, when the yarn winding sleeve 51 is sleeved on the outside of the first rotating shaft 52, it will first squeeze the arc head 523, thereby causing the arc head 523 and the first engaging strip 522 to move toward the inside of the first rotating shaft 52. At this time, the connecting spring 525 is compressed, that is, the two groups of first engaging strips 522 will squeeze the inner wall of the yarn winding sleeve 51. At this time, the yarn winding sleeve 51 rotates with the rotation of the first rotating shaft 52. When one group of yarn winding sleeves 51 is sleeved on the outside of the first rotating shaft 52, The second engaging strip 535 is engaged with the inside of the second rotating shaft 53 and does not contact the inner wall of the yarn winding sleeve 51. At this time, the rotation of the second rotating shaft 53 will not drive the rotation of the yarn winding sleeve 51, so that one end of the yarn is initially unwound onto the outer shell of the yarn winding sleeve 51 outside the first rotating shaft 52. When the driving motor 8 is driven, the yarn winding sleeve 51 rotates following the first rotating shaft 52 to wind the yarn, and the rotation of the third pulley 83 at this time drives the second rotating shaft 53 to rotate. The rotating shaft 53 and the first rotating wheel 61 rotate. The rotation of the first rotating wheel 61 drives the second rotating wheel 62 and the round head column 63 to rotate. The diameter of the second rotating wheel 62 is larger than that of the first rotating wheel 61. When the round head column 63 contacts the electrical block 64, an electrical signal is sent to drive the first motor 531, so that the fixed column 5321, the limit bar 5323, the telescopic column 5322 and the threaded column 5324 come into contact. Since the lifting block 533 is embedded in the second rotating shaft 5 3, the threaded column 5324 drives the lifting block 533 and the tilting head 534 to rise, thereby squeezing the two sets of second engaging strips 535 to move toward the outside of the second rotating shaft 53, squeezing the outside of the second rotating shaft 53. That is, the rotation of the first rotating shaft 52 drives the rotation of the second rotating shaft 53. At this time, under the coordinated rotation of the yarn winding sleeve 51 and the second rotating shaft 53, the yarn inside the detection chamber 2 is kept at a fixed length. At this time, the downward pressure of the downward pressure component 7 can cause the yarn to stretch.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A yarn printing and dyeing difference detection machine with a line drawing function, comprising a detection light source box (1) and a detection cavity (2) provided inside the detection light source box (1), wherein the yarn is placed inside the detection cavity (2), and detection is performed by turning on different lights inside the detection light source box (1), characterized in that: The detection light source box (1) is provided with fixed bars (5) at the lower ends of both sides, and a first rotating shaft (52) is movably provided on the upper ends of one group of the fixed bars (5), and a yarn winding sleeve (51) is provided on the outer side of the first rotating shaft (52), and the yarn winding sleeve (51) and the first rotating shaft (52) are provided in multiple groups. The upper ends of the other group of the fixed bars (5) are movably provided with the first rotating shaft (52), and a second rotating shaft (53) is provided on the outer side of this group of the first rotating shaft (52), and the number of groups of the second rotating shafts (53) is equal to the number of groups of the yarn winding sleeve (51); the detection light source box (1) is also provided with feed slots (3), and vertical slots (4) are provided at the upper and lower ends of the feed slots (3), and the feed slots (3) and the vertical slots (4) are connected, and the number of groups of the vertical slots (4) is equal to the number of groups of the second rotating shaft (53) and the yarn winding sleeve (51). The number of groups corresponds to each other, the lower end of the first rotating shaft (52) is provided with a driving motor (8) through an axis connection, and the number of groups of the driving motor (8) corresponds to the number of groups of the first rotating shaft (52), the upper end of the interior of the detection light source box (1) is provided with a pressing component (7), and the number of groups of the pressing component (7) corresponds to the number of groups of the driving motor (8), one group of the fixed bars (5) is provided with an electric linkage component (6), and the electric linkage component (6) is located directly below the second rotating shaft (53), two groups of yarn winding sleeves (51) mounted on the outside of the first rotating shaft (52) and the second rotating shaft (53) are used to transmit the yarn, and the yarn is continuously transported inside the detection chamber (2). During the transportation process, the printing and dyeing difference detection is performed at different positions. While the yarn is being transported, the pressing component (7) presses down to stretch the yarn and then perform the printing and dyeing difference detection.

2. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 1, characterized in that: The driving motor (8) is connected to the first rotating shaft (52) through a shaft, and a first pulley (81) is provided on the outer side of the shaft. A fourth pulley (84) is provided on one side of the first pulley (81) through a belt transmission connection, a first meshing wheel (85) is provided on the upper end of the fourth pulley (84) through a shaft connection, and a second meshing wheel (86) is provided on one side of the first meshing wheel (85) in mesh with the second meshing wheel (86), a second pulley (82) is provided on one end of the driving motor (8) through a shaft connection, a third pulley (83) is provided on one side of the second pulley (82) through a belt transmission connection, and the third pulley (83) is connected to the second rotating shaft (53) through a shaft.

3. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 1, characterized in that: The pressing assembly (7) includes a pressing bar (71) embedded in the upper end of the detection light source box (1), a tooth groove (72) is provided on one side of the pressing bar (71), a driven wheel (73) is meshed with the tooth groove (72), and one side of the driven wheel (73) is connected to the second meshing wheel (86) through an axis, and a matching groove (74) is provided at the lower end of the pressing bar (71).

4. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 3, characterized in that: A movable circular block (76) is movably provided inside the matching groove (74), a second motor (75) is provided on one side of the movable circular block (76) through a shaft, and the second motor (75) is fixedly provided inside the matching groove (74), a connecting strip (77) is provided at the lower end of the movable circular block (76), a fixing plate (78) is provided at the lower end of the connecting strip (77), a circular plate (79) is provided at the lower end of the fixing plate (78), and two groups of circular plates (79) are provided, and a movable shaft (791) is movably provided between the two groups of circular plates (79).

5. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 1, characterized in that: A group of the driving motor (8), the pressing assembly (7), the electrical linkage assembly (6), the yarn winding sleeve (51), the second rotating shaft (53), the vertical slot (4) and the two groups of the first rotating shafts (52) form a functional structure for detecting yarn printing and dyeing differences.

6. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 1, characterized in that: The first rotating shaft (52) is provided with an engaging groove (521), and two groups of engaging grooves (521) are provided. A first engaging strip (522) is engaged with the engaging groove (521). An arc-shaped head (523) is provided at the upper end of the first engaging strip (522). An engaging column (524) is provided on one side of the arc-shaped head (523). The engaging column (524) is engaged with the first rotating shaft (52). A connecting spring (525) is provided on the outside of the engaging column (524).

7. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 1, characterized in that: A second engaging strip (535) is provided in engagement with the interior of the second rotating shaft (53), a matching block (536) is provided on one side of the second engaging strip (535), the matching block (536) is engaged with the interior of the second rotating shaft (53), a spring guide column (537) is provided on one side of the matching block (536), and a plurality of groups of spring guide columns (537) are provided, the plurality of groups of spring guide columns (537) are engaged with the interior of the second rotating shaft (53), and two groups of second engaging strips (535) are provided.

8. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 7, characterized in that: A first motor (531) is provided between the two groups of second interlocking strips (535), a telescopic assembly (532) is provided at the upper end of the first motor (531) via an axis, a lifting block (533) is provided at the upper end of the telescopic assembly (532), a tilting head (534) is provided at the upper end of the lifting block (533), and the upper end of the tilting head (534) matches the lower ends of the two groups of second interlocking strips (535).

9. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 8, characterized in that: The electrical linkage assembly (6) includes a first rotating wheel (61) arranged on the outside of the connecting shaft between the third pulley (83) and the second rotating shaft (53), a second rotating wheel (62) is meshedly arranged on one side of the first rotating wheel (61), a round head column (63) is arranged on the outside of the upper end shaft of the second rotating wheel (62), an electrical block (64) is arranged on the outside of the round head column (63), the electrical block (64) is fixedly arranged inside the detection light source box (1), and the round head column (63), the electrical block (64) and the first motor (531) are electrically connected.

10. The yarn printing and dyeing difference detection machine with a thread-retracting function according to claim 8, characterized in that: The telescopic assembly (532) includes a fixed column (5321) and a telescopic column (5322) embedded in the fixed column (5321). A limit strip (5323) is provided on the outside of the telescopic column (5322), and two groups of limit strips (5323) are provided. The two groups of limit strips (5323) are embedded in the fixed column (5321). A threaded column (5324) is provided at the upper end of the telescopic column (5322), and the threaded column (5324) is threadedly arranged inside the lifting block (533).

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