A slitting and warping machine with automatic yarn tension adjustment function

Abstract

This utility model relates to the field of slitting warping machine technology, and more particularly to a slitting warping machine with automatic yarn tension adjustment function. It includes a machine base, a warping shaft rotatably connected within the machine base, a tensioning frame placed on one side of the machine base, multiple sets of spacers arranged in an array within the tensioning frame, a partition beam installed between upper and lower sets of spacers, a sleeve installed between adjacent spacers, an electromagnet installed on the top wall of the sleeve, a magnetic rod sliding inside the sleeve, a roller frame fixed to the bottom of the magnetic rod, and a threading roller rotatably connected within the roller frame. This utility model provides initial thrust to the yarn by energizing the electromagnet, which generates a repulsive force with the magnetic rod. As the yarn is warped, if the yarn tension is too tight, the generated force pushes the magnetic rod upward; if the yarn tension is too loose, the magnetic rod moves downward under the repulsive force, pressing down on the yarn through the threading roller, thereby dynamically adjusting the yarn tension in real time.

Description

Technical Field

[0001] This utility model relates to the field of slitting warping machine technology, and in particular to a slitting warping machine with automatic yarn tension adjustment function. Background Technology

[0002] For example, Chinese patent CN115874324A discloses a slitting and warping machine with automatic yarn tension adjustment function. The tension of a single yarn is monitored in real time by a pressure measuring mechanism. When the tension of a certain yarn changes, the speed of the tension drive motor is increased or decreased. The tension drive motor drives the tension tube to rotate synchronously, thereby adjusting the yarn tension and restoring the yarn tension to the specified value.

[0003] While this technology achieves automated tension adjustment, it still has the following significant drawbacks in practical applications: First, the speed adjustment of the tension drive motor requires processes such as motor start-up, acceleration / deceleration, and mechanical transmission. For the high-frequency tension fluctuations that occur during warping, the motor's dynamic response speed is difficult to match, easily leading to lag in tension adjustment and causing short-term tension overshoot or undershoot, which in turn causes excessive or loose yarn stretching and affects warping quality. Second, the transmission structure between the tension drive motor and the tension tube is in a state of high-frequency start-stop and speed change for a long time, which is prone to mechanical wear leading to a decrease in transmission accuracy. This not only increases the frequency and cost of equipment maintenance, but also causes tension adjustment errors to accumulate over time, affecting the long-term stability of the equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a slitting and warping machine with automatic yarn tension adjustment function, which solves the technical problems of existing mechanical tension adjustment, such as lag in response, limited dynamic adjustment range, high mechanical loss under high frequency start-stop and speed adjustment conditions, leading to errors in tension adjustment.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a slitting warping machine with automatic yarn tension adjustment function, including a machine base, a warping shaft rotatably connected inside the machine base, a tensioning frame placed on one side of the machine base, multiple sets of spacers arranged in an array inside the tensioning frame, a partition beam installed between the upper and lower sets of spacers, a sleeve installed between two adjacent spacers, an electromagnet installed on the top wall of the sleeve, a magnetic rod slidingly arranged inside the sleeve, a roller frame fixed to the bottom of the magnetic rod, a threading roller shaft rotatably connected inside the roller frame, and a pressure measuring mechanism for detecting the tension of a single yarn shaft provided on the threading roller shaft.

[0006] A further improvement is that the pressure measuring mechanism includes a pressure sensor mounted on the guide roller shaft, a pressure display mounted on the tensioning frame, and wires mounted on the electromagnets, with the ends of the wires electrically connected to the pressure display.

[0007] A further improvement is that the wire feeding roller is I-shaped, with an annular mounting groove in the middle of the I-shape, and the pressure sensor is an annular structure adapted to the annular mounting groove, and a rubber pad is installed on the outside of the pressure sensor.

[0008] A further improvement is that a slider adapted to the inner diameter of the sleeve is installed on the top of the magnetic rod, and the diameter of the slider is larger than the diameter of the magnetic rod. Electrical contact rings are installed on the bottom of the slider and the bottom wall of the sleeve.

[0009] A further improvement is that guide grooves are symmetrically provided on adjacent partition plates, and guide strips adapted to the guide grooves are installed on both sides of the roller frame.

[0010] A further improvement is that a combing plate is installed on one side of the tensioning frame, and the combing plate has an array of wire holes corresponding to the wire feeding roller shaft, and the combing plate is higher than the wire feeding roller shaft.

[0011] A further improvement is that a traction platform is installed on one side of the machine base, and a fixed-width reed and a traction roller are installed on the traction platform from the outside to the inside.

[0012] By employing the above technical solution, this utility model provides a slitting and warping machine with automatic yarn tension adjustment function, which has at least the following beneficial effects:

[0013] 1. This utility model provides an initial thrust to the yarn by energizing an electromagnet and generating a repulsive force with the magnetic rod. As the yarn is warped, if the yarn tension is too tight, the generated force pushes the magnetic rod upward. If the yarn tension is too loose, the magnetic rod moves downward under the action of the repulsive force, pressing down the yarn through the guide roller shaft. This allows for real-time dynamic adjustment of the yarn tension. It can respond instantly to changes in yarn tension and does not require mechanical devices to adjust the yarn tension, thus avoiding tension errors caused by mechanical wear.

[0014] 2. If the yarn breaks or becomes too loose in some areas, the magnetic rod will slide down under the action of repulsion and gravity until the electric contact ring on the top slider contacts the electric contact ring on the bottom wall of the sleeve, and send an electrical signal to the pressure display to remind the staff that the yarn condition is abnormal, so as to avoid the yarn breakage not being detected in time and affecting the warping effect. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an independent side view of the tensioning frame and its upper structure of the present invention;

[0019] Figure 3 This is a partial sectional view of the disassembled structure of the tensioning frame of this utility model;

[0020] Figure 4 This is a cross-sectional view of the adjacent partition plates of this utility model;

[0021] Figure 5 This is a cross-sectional view of the internal structure of the sleeve and the disassembled structure on the wire roller shaft of this utility model.

[0022] In the diagram: 1. Machine base; 2. Warping beam; 3. Tensioning frame; 4. Spacer plate; 5. Divider beam; 6. Sleeve; 7. Electromagnet; 8. Magnetic rod; 9. Roller frame; 10. Wire guide roller.

[0023] 11. Pressure measuring mechanism; 111. Pressure sensor; 112. Pressure display; 113. Wires;

[0024] 12. Slider; 13. Electrical contact ring; 14. Guide groove; 15. Guide rail; 16. Combing plate; 17. Wiring hole;

[0025] 18. Traction table; 19. Amplitude reed; 20. Traction roller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Existing mechanical tension adjustment mechanisms suffer from response lag and limited dynamic adjustment range. High mechanical wear during frequent start-stop cycles and speed adjustments leads to tension adjustment errors. This embodiment provides a slitting and warping machine with automatic yarn tension adjustment, capable of instantaneous adjustment without mechanical tension control, thus avoiding tension adjustment errors caused by mechanical wear and improving the accuracy of yarn tension adjustment. Please refer to... Figures 1-5The slitting and warping machine with automatic yarn tension adjustment function includes a base 1, a warping shaft 2 rotatably connected inside the base 1, a tensioning frame 3 placed on one side of the base 1, multiple sets of spacers 4 arrayed inside the tensioning frame 3, a partition beam 5 installed between the upper and lower sets of spacers 4, a sleeve 6 installed between adjacent spacers 4, an electromagnet 7 installed on the top wall of the sleeve 6, a magnetic rod 8 sliding inside the sleeve 6, a roller frame 9 fixed to the bottom of the magnetic rod 8, a threading roller 10 rotatably connected inside the roller frame 9, and a pressure measuring mechanism 11 for detecting the tension of a single yarn on the threading roller 10, which pulls the yarn to the threading roller 10. When the yarn tension is increased to 0, the magnetic rod 8 is pushed to slide to the middle of the sleeve 6. Then, the electromagnet 7 is energized, and it generates a repulsive force with the magnetic rod 8, providing an initial thrust to the yarn and maintaining this thrust value. As the yarn is warped, if the yarn tension is too tight, the generated force pushes the magnetic rod 8 upward. If the yarn tension is too loose, the magnetic rod 8 moves downward under the action of the repulsive force, pressing down the yarn through the guide roller 10, thereby dynamically adjusting the yarn tension in real time. It can respond instantly to changes in yarn tension and does not require mechanical devices to adjust the yarn tension, thus avoiding tension errors caused by mechanical wear.

[0029] To better monitor yarn tension changes and adjust yarn tension in a timely manner, the device is also equipped with a pressure measuring mechanism 11. The pressure measuring mechanism 11 includes a pressure sensor 111 mounted on the warping roller 10, a pressure display 112 mounted on the tensioning frame 3, and wires 113 mounted on each electromagnet 7, with the ends of the wires 113 electrically connected to the pressure display 112. The yarn tension is monitored by the pressure sensor 111 on the warping roller 10, and the tension value is displayed in real time by the pressure display 112. The initial repulsive force value of the electromagnet 7 can be adjusted according to the yarn tension, thereby adapting to different yarn warping and improving the applicability of the device.

[0030] Furthermore, the guide roller 10 is I-shaped, with an annular mounting groove in the middle of the I-shape. The pressure sensor 111 is an annular structure that matches the annular mounting groove, and a rubber pad is installed on the outside of the pressure sensor 111. The rubber pad increases the friction with the yarn, preventing the yarn from slipping on the guide roller 10 and thus affecting the monitoring of the yarn tension.

[0031] Furthermore, symmetrical guide grooves 14 are provided on adjacent partition plates 4, and guide strips 15 adapted to the guide grooves 14 are installed on both sides of the roller frame 9. When the roller frame 9 moves slightly up and down with the yarn feeding roller 10 to dynamically adjust the yarn tension, the guide strips 15 on the roller frame 9 slide up and down along the guide grooves 14, thereby improving the stability of the roller frame 9 sliding.

[0032] Furthermore, a carding plate 16 is installed on one side of the tensioning frame 3. The carding plate 16 has an array of thread holes 17 corresponding to the thread roller shaft 10. The carding plate 16 is higher than the thread roller shaft 10. The yarn passes through the thread holes 17 on the carding plate 16 in sequence to separate the yarn individually, which makes warping easier. The carding plate 16 is higher than the thread roller shaft 10, thus forming a tension adjustment system by utilizing the height difference.

[0033] Furthermore, a traction table 18 is installed on one side of the machine base 1. A width-fixing reed 19 and a traction roller 20 are installed on the traction table 18 from the outside to the inside. The yarn is adjusted to the required width by the width-fixing reed 19, and then the yarn width is guided to wind onto the warping beam 2 by the traction roller 20.

[0034] Example 2

[0035] To avoid situations where yarn breaks or excessive looseness occurs during warping and goes undetected, therefore, based on Example 1, as follows: Figures 1-5 As shown, the device has a slider 12 installed on the top of the magnetic rod 8, which is adapted to the inner diameter of the sleeve 6, and the diameter of the slider 12 is larger than the diameter of the magnetic rod 8. Both the bottom of the slider 12 and the bottom wall of the sleeve 6 are equipped with electrical contact rings 13. If the yarn breaks or becomes too loose in some areas, the magnetic rod 8 will slide down under the action of repulsion and gravity until the electrical contact rings 13 on the top slider 12 come into contact with the electrical contact rings 13 on the bottom wall of the sleeve 6, and send an electrical signal to the pressure display 112 to remind the staff that the yarn condition is abnormal, so as to avoid the yarn breakage not being detected in time and affecting the warping effect.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. A slitting and warping machine with automatic yarn tension adjustment function, comprising a machine base (1), characterized in that: The base (1) is rotatably connected to a warping shaft (2). A tensioning frame (3) is placed on one side of the base (1). Multiple sets of spacers (4) are arrayed inside the tensioning frame (3). A partition beam (5) is installed between the upper and lower sets of spacers (4). A sleeve (6) is installed between two adjacent spacers (4). An electromagnet (7) is installed on the top wall of the sleeve (6). A magnetic rod (8) is slidably installed inside the sleeve (6). A roller frame (9) is fixed to the bottom of the magnetic rod (8). A threading roller (10) is rotatably connected inside the roller frame (9). A pressure measuring mechanism (11) for detecting the tension of a single yarn is provided on the threading roller (10).

2. A slitting and warping machine with automatic yarn tension adjustment function according to claim 1, characterized in that: The pressure measuring mechanism (11) includes a pressure sensor (111) installed on the wire roller shaft (10), a pressure display (112) installed on the tensioning frame (3), and wires (113) installed on the electromagnet (7), with the end of the wires (113) electrically connected to the pressure display (112).

3. A slitting and warping machine with automatic yarn tension adjustment function according to claim 2, characterized in that: The wire roller (10) is I-shaped, with an annular mounting groove in the middle of the I-shape. The pressure sensor (111) is an annular structure that is adapted to the annular mounting groove, and a rubber pad is installed on the outside of the pressure sensor (111).

4. A slitting and warping machine with automatic yarn tension adjustment function according to claim 1, characterized in that: The top of the magnetic rod (8) is fitted with a slider (12) that matches the inner diameter of the sleeve (6), and the diameter of the slider (12) is larger than the diameter of the magnetic rod (8). The bottom of the slider (12) and the bottom wall of the sleeve (6) are both fitted with electrical contact rings (13).

5. A slitting and warping machine with automatic yarn tension adjustment function according to claim 1, characterized in that: The adjacent partition plates (4) are symmetrically provided with guide grooves (14), and the roller frame (9) is provided with guide strips (15) that are compatible with the guide grooves (14) on both sides.

6. A slitting and warping machine with automatic yarn tension adjustment function according to claim 1, characterized in that: A combing plate (16) is installed on one side of the tensioning frame (3). The combing plate (16) has an array of wire holes (17) corresponding to the wire feeding roller shaft (10), and the combing plate (16) is higher than the wire feeding roller shaft (10).

7. A slitting and warping machine with automatic yarn tension adjustment function according to claim 1, characterized in that: A traction table (18) is installed on one side of the machine base (1), and a fixed reed (19) and a traction roller (20) are installed on the traction table (18) from the outside to the inside.

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