Yarn-breaking-preventing warp knitting machine yarn feeding device for preparing cool-feeling fabric

Abstract

The utility model relates to the technical field of cool fabric preparation, and discloses a warp knitting machine yarn feeding device capable of preventing yarn breakage for cool fabric preparation, which comprises a base and a warp knitting machine main body at the top of the base, and a yarn feeding mechanism for feeding yarn into the warp knitting machine main body is arranged at the top of the base. The stability and the accuracy of the yarn in the conveying process are ensured by accurately controlling the lifting and the position limitation of the driven yarn feeding roller. Before the driving motor is started, the two-way pawl is meshed with the ratchet wheel by rotating the handle, and the position is locked by means of the abutting column, so that reverse rotation of the driving yarn feeding roller is effectively prevented, and the risk of yarn breakage caused by reverse rotation is avoided. In addition, due to the arrangement of a first damping spring and a second damping spring, the driven yarn feeding roller has a certain swing space in the conveying process, large fluctuation can be buffered and decomposed, and the stability and safety of yarn conveying are further enhanced. And the yarns can be effectively prevented from being broken due to over-high temperature or over-low humidity.

Description

Technical Field

[0001] The utility model relates to the technical field of preparing cool fabrics, in particular to a yarn-breaking-preventing warp knitting machine yarn feeding device for preparing cool fabrics. Background Art

[0002] In the process of preparing cool fabrics, warp knitting machines are used to process the transmitted yarns. However, the traditional warp knitting machine yarn feeding device often affects the production efficiency and fabric quality due to the yarn breakage problem. Therefore, a warp knitting machine yarn feeding device that prevents yarn breakage comes into being.

[0003] For example, the Chinese patent authorization publication number CN220413668U discloses a yarn feeding device for a warp knitting machine for textile fabrics. The existing device solves the problem that the yarn feeding device for a warp knitting machine for textile fabrics in the prior art does not have an adjustment function and cannot adjust the tension of the yarn through the coordinated use of a first motor, a screw, a threaded sleeve, a connecting block, a housing, a guide wheel, a limit sleeve, a limit plate, a limit rod, a lifting plate, an extrusion wheel, a second motor and a cam. However, in actual application, the existing device increases the risk of yarn breakage due to certain fluctuations and swings during the transmission process of the yarn, and the position of the extrusion wheel of the existing device is relatively fixed, lacking a corresponding buffer mechanism. At the same time, the existing device cannot monitor and adjust environmental parameters such as temperature and humidity in real time to adapt to different yarn materials and process requirements. This causes the yarn to break easily due to changes in environmental factors during the transmission process, reducing the practicality and efficiency of the yarn feeding device for the warp knitting machine. Utility Model Content

[0004] The utility model aims to provide a yarn feeding device for a warp knitting machine for preparing cool fabrics, which can prevent yarn from breaking, so that the driven yarn feeding roller has a certain swing space during the transmission process, can buffer and decompose large fluctuations, and further enhance the stability and safety of yarn transmission. It can also effectively prevent the yarn from breaking due to excessively high temperature or low humidity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a yarn feeding device for a warp knitting machine with anti-yarn breakage for preparing cool fabrics, comprising a base and a warp knitting machine body on the top thereof, wherein a yarn feeding mechanism for feeding yarn into the inside of the warp knitting machine body is arranged on the top of the base.

[0006] The yarn feeding mechanism includes a first fixed frame arranged at the top of the base, a second fixed frame is arranged at the top of the first fixed frame, a driving motor is fixed on the outer side of the first fixed frame, an active yarn feeding roller is transmission-connected to the output shaft of the driving motor, and a driven yarn feeding roller is movably arranged in the second fixed frame.

[0007] The first fixed frame is provided with an anti-reversal component to prevent the active yarn feeding roller from reversing to cause the yarn to break. The anti-reversal component includes a ratchet wheel arranged on the side of the active yarn feeding roller away from the output shaft of the driving motor and a bidirectional pawl movably arranged in the first fixed frame, and the ratchet wheel is meshed with the bidirectional pawl.

[0008] Preferably, the anti-reversal assembly further comprises a mounting rod rotatably disposed in the first fixing frame, the bidirectional pawl is fixed outside the mounting rod, and a handle is disposed outside the mounting rod.

[0009] Preferably, a connecting sleeve is also provided in the anti-reversal assembly, and the connecting sleeve is arranged in the first fixed frame. An abutment column that abuts against the two-way pawl is slidably provided in the connecting sleeve. A first spring is also provided in the connecting sleeve, and both ends of the first spring are respectively connected to the connecting sleeve and the abutment column.

[0010] Preferably, the second fixed frame is provided with an adjustment component for adjusting the position of the driven yarn feed roller, the adjustment component includes a mounting plate arranged in the second fixed frame, a mounting column is fixed outside the mounting plate, a slider is slidably arranged outside the mounting column, and the driven yarn feed roller is rotatably arranged in the slider.

[0011] Preferably, the mounting column sleeve is provided with a first damping spring and a second damping spring, the two ends of the first damping spring are respectively connected to the mounting plate and the slider, the two ends of the second damping spring are respectively connected to the second fixing frame and the slider, and the extension length of the first damping spring is greater than the extension length of the second damping spring.

[0012] Preferably, an auxiliary yarn breakage prevention mechanism is provided outside the active yarn feed roller and the driven yarn feed roller to prevent yarn breakage due to excessively high temperature or excessively low humidity. The auxiliary yarn breakage prevention mechanism includes two groups of temperature sensors for detecting temperature, one group of the temperature sensors is arranged outside the active yarn feed roller, and the other group of the temperature sensors is arranged outside the driven yarn feed roller.

[0013] Preferably, the auxiliary yarn-breaking prevention mechanism further comprises a humidity detector arranged outside the second fixed frame for real-time monitoring of the humidity in the yarn feeding environment.

[0014] Preferably, the signal output end of the humidity detector is connected to a constant temperature water tank, the bottom end of the constant temperature water tank is provided with an atomizing nozzle for adjusting the temperature and humidity, and the top end of the constant temperature water tank is provided with an external water pipe for replenishing the water inside the constant temperature water tank.

[0015] Compared with the prior art, the utility model provides a yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics, which has the following beneficial effects:

[0016] 1. The yarn feeding device of the warp knitting machine with anti-yarn breakage for preparing cool fabrics ensures the stability and accuracy of the yarn during transmission by precisely controlling the lifting and position limitation of the driven yarn feeding roller. Before starting the drive motor, the two-way pawl is engaged with the ratchet wheel by turning the handle, and the position is locked with the aid of the abutment column, which effectively prevents the active yarn feeding roller from reversing, thereby avoiding the risk of yarn breakage caused by reversal. In addition, the provision of the first damping spring and the second damping spring allows the driven yarn feeding roller to have a certain swing space during transmission, which can buffer and decompose large fluctuations, further enhancing the stability and safety of yarn transmission;

[0017] 2. The yarn-breaking prevention warp knitting machine yarn feeding device for the preparation of cool fabrics monitors the surface temperature of the active yarn feeding roller and the driven yarn feeding roller and the humidity of the yarn feeding environment in real time through temperature sensors and humidity detectors. When the temperature exceeds the set range or the humidity is too low, the constant temperature water storage tank will be automatically triggered to spray the roller surface or yarn through the atomizing nozzle to reduce the temperature or increase the humidity, thereby effectively preventing the yarn from breaking due to excessive temperature or low humidity. This intelligent adjustment function not only improves the transmission efficiency of the yarn, but also significantly reduces the risk of yarn breakage, providing more reliable and stable support for the yarn feeding operation of the warp knitting machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structure diagram of a yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing a cool fabric according to the utility model Figure 1 ;

[0019] Figure 2 A three-dimensional structure diagram of a yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing a cool fabric according to the utility model Figure 2 ;

[0020] Figure 3 It is a partial three-dimensional structural schematic diagram of a yarn feeding device of a warp knitting machine for preventing yarn breakage for preparing a cool fabric according to the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of an anti-reversal component in a yarn feeding device of a warp knitting machine for preventing yarn breakage for preparing a cool fabric according to the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of an adjusting component in a yarn feeding device of a warp knitting machine for preventing yarn breakage for preparing a cool fabric according to the utility model;

[0023] Figure 6 A schematic diagram of the three-dimensional structure of a yarn-breaking prevention mechanism in a yarn-feeding device of a warp knitting machine for preparing a cool fabric according to the utility model Figure 1 ;

[0024] Figure 7A schematic diagram of the three-dimensional structure of a yarn-breaking prevention mechanism in a yarn-feeding device of a warp knitting machine for preparing a cool fabric according to the utility model Figure 2 .

[0025] In the figure: 1. base; 2. warp knitting machine body; 3. yarn feeding mechanism; 31. first fixed frame; 32. second fixed frame; 33. driving motor; 34. active yarn feeding roller; 35. driven yarn feeding roller; 3a. anti-reversal assembly; 3a1. ratchet; 3a2. mounting rod; 3a3. bidirectional pawl; 3a4. handle; 3a5. connecting sleeve; 3a6. abutment column; 3a7. first spring; 3b. adjustment assembly; 3b1. mounting plate; 3b2. mounting column; 3b3. slider; 3b4. first damping spring; 3b5. second damping spring; 4. auxiliary anti-yarn breaking mechanism; 41. temperature sensor; 42. humidity detector; 43. constant temperature water storage tank; 44. atomizing nozzle; 45. external water pipe. DETAILED DESCRIPTION

[0026] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Embodiment 1

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a yarn feeding device for a warp knitting machine with anti-yarn breakage for preparing cool fabrics, comprising a base 1 and a warp knitting machine body 2 on the top thereof, and a yarn feeding mechanism 3 for feeding yarn into the warp knitting machine body 2 is arranged on the top of the base 1.

[0029] The yarn feeding mechanism 3 includes a first fixed frame 31 arranged at the top of the base 1, a second fixed frame 32 is arranged at the top of the first fixed frame 31, a driving motor 33 is fixed to the outer side of the first fixed frame 31, an active yarn feeding roller 34 is transmission-connected to the output shaft of the driving motor 33, and a driven yarn feeding roller 35 is movably arranged in the second fixed frame 32.

[0030] The first fixed frame 31 is provided with an anti-reversal component 3a for preventing the active yarn feeding roller 34 from reversing to cause the yarn to break. The anti-reversal component 3a includes a ratchet 3a1 arranged on the side of the active yarn feeding roller 34 away from the output shaft of the driving motor 33 and a bidirectional pawl 3a3 movably arranged in the first fixed frame 31, and the ratchet 3a1 is engaged with the bidirectional pawl 3a3.

[0031] Furthermore, the anti-reversal assembly 3a further includes a mounting rod 3a2 rotatably disposed in the first fixing frame 31 , a bidirectional ratchet 3a3 is fixed outside the mounting rod 3a2 , and a handle 3a4 is disposed outside the mounting rod 3a2 .

[0032] Furthermore, the anti-reversal assembly 3a is further provided with a connecting sleeve 3a5, which is arranged in the first fixing frame 31, and a contact column 3a6 is slidably arranged in the connecting sleeve 3a5 to contact with the two-way ratchet 3a3, and a first spring 3a7 is further arranged in the connecting sleeve 3a5, and two ends of the first spring 3a7 are respectively connected to the connecting sleeve 3a5 and the contact column 3a6. The operator can conveniently adjust the position of the two-way ratchet 3a3 by turning the handle 3a4, thereby realizing rapid and accurate control of the anti-reversal assembly 3a.

[0033] Furthermore, the second fixed frame 32 is provided with an adjustment component 3b for adjusting the position of the driven yarn feeding roller 35, and the adjustment component 3b includes a mounting plate 3b1 disposed in the second fixed frame 32, a mounting column 3b2 is fixed outside the mounting plate 3b1, a slider 3b3 is slidably disposed outside the mounting column 3b2, and the driven yarn feeding roller 35 is rotatably disposed in the slider 3b3. The stability of the anti-reversal component 3a is enhanced, the firmness of the bidirectional ratchet 3a3 in the meshing state is ensured, and the risk of yarn breakage is further reduced.

[0034] Furthermore, the outer sleeve of the mounting column 3b2 is provided with a first damping spring 3b4 and a second damping spring 3b5, the two ends of the first damping spring 3b4 are respectively connected to the mounting plate 3b1 and the slider 3b3, the two ends of the second damping spring 3b5 are respectively connected to the second fixing frame 32 and the slider 3b3, and the extension length of the first damping spring 3b4 is greater than the extension length of the second damping spring 3b5. The position of the driven yarn feeding roller 35 can be flexibly adjusted according to actual needs, thereby ensuring the stability and accuracy of the yarn during the conveying process, and through reasonable damping settings, ensuring the stability and reliability of the driven yarn feeding roller 35 during the adjustment process, further improving the overall performance of the yarn feeding device.

[0035] Embodiment 2

[0036] See also Figure 6-Figure 7 , and combined with the first embodiment, it is further obtained that an auxiliary anti-yarn-breaking mechanism 4 is provided outside the active yarn feeding roller 34 and the driven yarn feeding roller 35 to prevent the yarn from breaking due to excessively high temperature or low humidity. The auxiliary anti-yarn-breaking mechanism 4 includes two groups of temperature sensors 41 for detecting temperature, one group of temperature sensors 41 is provided outside the active yarn feeding roller 34, and the other group of temperature sensors 41 is provided outside the driven yarn feeding roller 35. By real-time monitoring of temperature changes, potential risks of yarn breakage are discovered and handled in a timely manner, ensuring the smooth progress of the fabric preparation process.

[0037] Furthermore, the auxiliary anti-yarn-break mechanism 4 also includes a humidity detector 42 arranged outside the second fixed frame 32 for real-time monitoring of the humidity in the yarn feeding environment. This enables the yarn feeding device to more comprehensively sense environmental changes and take corresponding measures to adjust the environmental humidity in a timely manner, thereby further reducing the risk of yarn breakage.

[0038] Furthermore, the signal output end of the humidity detector 42 is connected to a constant temperature water tank 43, the bottom of the constant temperature water tank 43 is provided with an atomizing nozzle 44 for adjusting the temperature and humidity, and the top of the constant temperature water tank 43 is provided with an external water pipe 45 for replenishing the water inside the constant temperature water tank 43. Intelligent control realizes precise adjustment of the yarn feeding environment, ensures that the yarn is transported and prepared under the best conditions, and further improves the quality and production efficiency of the fabric.

[0039] In actual operation, when the warp knitting machine body 2 needs to be fed with yarn, the driven yarn feeding roller 35 is first lifted up to pass the yarn between it and the active yarn feeding roller 34. After being arranged, the driven yarn feeding roller 35 is released, and under the action of the first damping spring 3b4 and the second damping spring 3b5, the slider 3b3 descends, so that the driven yarn feeding roller 35 is close to the yarn, limiting the yarn position.

[0040] Next, the driving motor 33 is started, and the active yarn feeding roller 34 starts to rotate, cooperating with the driven yarn feeding roller 35 to deliver the yarn to the warp knitting machine body 2. In order to prevent the active yarn feeding roller 34 from reversing and causing the yarn to break, the handle 3a4 needs to be turned before starting the motor to drive the mounting rod 3a2 and the two-way ratchet 3a3 to rotate, so that one side of the two-way ratchet 3a3 is engaged with the ratchet wheel 3a1. Subsequently, the abutment column 3a6 pops out under the action of the first spring 3a7, locking the position of the two-way ratchet 3a3 to prevent reversal. In addition, during the transmission process, when large fluctuations occur, the driven yarn feeding roller 35 can have a certain swing space under the action of the first damping spring 3b4 and the second damping spring 3b5 to buffer and decompose the fluctuation force, further avoiding the yarn from breaking.

[0041] As the yarn is transported, the surface temperature of the active yarn feed roller 34 and the driven yarn feed roller 35 increases. When the temperature sensor 41 detects that the temperature exceeds the set range, it transmits a signal to the constant temperature water tank 43. The atomizing nozzle 44 performs atomization spraying to reduce the roller surface temperature and prevent the yarn from breaking. At the same time, the humidity detector 42 monitors the ambient humidity. When the humidity is too low, it will also trigger the constant temperature water tank 43, spraying the yarn through the atomizing nozzle 44 to reduce the risk of yarn breakage. The external water pipe 45 can replenish the water in the constant temperature water tank 43 in a timely manner.

[0042] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics, comprising a base (1) and a warp knitting machine body (2) on the top thereof, characterized in that: A yarn feeding mechanism (3) for feeding yarn into the warp knitting machine body (2) is arranged at the top of the base (1); the yarn feeding mechanism (3) comprises a first fixed frame (31) arranged at the top of the base (1); a second fixed frame (32) is arranged at the top of the first fixed frame (31); a driving motor (33) is fixed on the outside of the first fixed frame (31); an active yarn feeding roller (34) is drivingly connected to the output shaft of the driving motor (33); a driven yarn feeding roller (35) is movably arranged in the second fixed frame (32); an anti-reversal component (3a) for preventing the active yarn feeding roller (34) from reversing to cause yarn breakage is arranged in the first fixed frame (31); the anti-reversal component (3a) comprises a ratchet (3a1) arranged on a side of the active yarn feeding roller (34) away from the output shaft of the driving motor (33) and a bidirectional ratchet (3a3) movably arranged in the first fixed frame (31); the ratchet (3a1) is meshed with the bidirectional ratchet (3a3).

2. The yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics according to claim 1, characterized in that: The anti-reversal assembly (3a) further comprises a mounting rod (3a2) rotatably arranged in the first fixing frame (31), the bidirectional pawl (3a3) is fixed outside the mounting rod (3a2), and a handle (3a4) is arranged outside the mounting rod (3a2).

3. The yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics according to claim 2, characterized in that: The anti-reversal component (3a) is further provided with a connecting sleeve (3a5), the connecting sleeve (3a5) being arranged in a first fixing frame (31), the connecting sleeve (3a5) being slidably provided with an abutment column (3a6) abutting against the bidirectional pawl (3a3), the connecting sleeve (3a5) being further provided with a first spring (3a7), the two ends of the first spring (3a7) being respectively connected to the connecting sleeve (3a5) and the abutment column (3a6).

4. The yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics according to claim 1, characterized in that: An adjusting component (3b) for adjusting the position of a driven yarn feeding roller (35) is arranged in the second fixed frame (32), and the adjusting component (3b) comprises a mounting plate (3b1) arranged in the second fixed frame (32), a mounting column (3b2) is fixed outside the mounting plate (3b1), a slider (3b3) is slidably arranged outside the mounting column (3b2), and the driven yarn feeding roller (35) is rotatably arranged in the slider (3b3).

5. The yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics according to claim 4, characterized in that: The mounting column (3b2) is provided with a first damping spring (3b4) and a second damping spring (3b5) on its outer sleeve, the two ends of the first damping spring (3b4) being respectively connected to the mounting plate (3b1) and the slider (3b3), the two ends of the second damping spring (3b5) being respectively connected to the second fixing frame (32) and the slider (3b3), and the extension length of the first damping spring (3b4) being greater than the extension length of the second damping spring (3b5).

6. The yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics according to claim 1, characterized in that: An auxiliary yarn break prevention mechanism (4) is also provided outside the active yarn feeding roller (34) and the driven yarn feeding roller (35) to prevent yarn breakage caused by excessively high temperature or excessively low humidity. The auxiliary yarn break prevention mechanism (4) comprises two groups of temperature sensors (41) for detecting temperature, wherein one group of the temperature sensors (41) is provided outside the active yarn feeding roller (34), and the other group of the temperature sensors (41) is provided outside the driven yarn feeding roller (35).

7. The yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics according to claim 6, characterized in that: The auxiliary yarn breakage prevention mechanism (4) further comprises a humidity detector (42) arranged outside the second fixed frame (32) for real-time monitoring of the humidity in the yarn feeding environment.

8. The yarn feeding device for a warp knitting machine for preventing yarn breakage for preparing cool fabrics according to claim 7, characterized in that: The signal output end of the humidity detector (42) is connected to a constant temperature water tank (43), the bottom end of the constant temperature water tank (43) is provided with an atomizing nozzle (44) for adjusting the temperature and humidity, and the top end of the constant temperature water tank (43) is provided with an external water pipe (45) for replenishing the water inside the constant temperature water tank (43).

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