Yarn tension adjusting device of polyester yarn spinning machine

Abstract

The utility model discloses a yarn tension adjusting device of a polyester yarn spinning machine, which comprises a fixed plate, a tension adjusting mechanism is arranged on the front surface of the fixed plate, the tension adjusting mechanism comprises two guide wheels, two fixed round blocks are rotatably connected in the guide wheels, a fixed frame is fixed at the bottom of the fixed plate, and the fixed frame is fixed at the bottom of the fixed plate. A lifting screw rod is rotationally connected to the interior of the fixing frame, a lifting block is connected to the outer side wall of the lifting screw rod in a threaded mode, a moving frame is fixed to the front surface of the lifting block, and a bidirectional screw rod is rotationally connected to the interior of the moving frame. According to the yarn tension adjusting device of the polyester yarn spinning machine, by arranging the tension adjusting mechanism and rotating the lifting screw, the lifting block, the moving frame and the moving wheel can descend, yarn can be tensioned, if the yarn descends to the bottom and is not tightened, the two-way screw is rotated, the moving block and the moving wheel are separated, and the yarn can be further tensioned; and the fabric is straightened.

Description

Technical Field

[0001] This utility model relates to the technical field of tension adjustment devices, specifically a yarn tension adjustment device for polyester yarn spinning machines. Background Technology

[0002] A textile machine, also called a spinning machine, loom, or cotton spinning machine, was originally a human-powered loom. A textile machine is a tool used to process raw materials such as thread, silk, and hemp into yarn and then weave it into fabric. When using a spinning machine, the tension of the yarn needs to be adjusted to prevent slack.

[0003] A search revealed an existing patent (publication number: CN216972765U) that discloses a tension adjustment device for a spinning roving frame, comprising a base plate, an adjustment mechanism, and a waxing mechanism. A fixed frame is vertically fixed to the top of the base plate, and the adjustment mechanism is located at the top of the base plate and below the fixed frame. This utility model relates to the field of yarn production technology. In this tension adjustment device for a spinning roving frame, the yarn contacts the surfaces of an auxiliary wheel and an adjustment wheel. The extension or retraction of a first electric telescopic rod changes the position of the adjustment wheel, thereby changing the yarn tension. Simultaneously, a second electric telescopic rod extends or retracts synchronously according to the position of the adjustment wheel, causing the wax roller to adhere to and apply wax to the yarn, ensuring effective waxing. This device adjusts the yarn tension while simultaneously applying wax, protecting the yarn and preventing subsequent wear, resulting in better production performance.

[0004] It changes the yarn tension by moving the adjusting wheel, but it has a drawback: it only has one adjusting wheel, and can only adjust the position of one adjusting wheel, which may not be able to meet the needs of spinning tension. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a yarn tension adjustment device for a polyester yarn spinning machine, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a yarn tension adjusting device for a polyester yarn spinning machine, comprising a fixed plate, a tension adjusting mechanism on the front surface of the fixed plate, the tension adjusting mechanism comprising two guide wheels, two fixed circular blocks rotatably connected inside the guide wheels, a fixed frame fixed at the bottom of the fixed plate, a lifting screw rotatably connected inside the fixed frame, a lifting block screwed to the outer wall of the lifting screw, a movable frame fixed on the front surface of the lifting block, a bidirectional screw rotatably connected inside the movable frame, two movable blocks screwed to the outer wall of the bidirectional screw, two movable circular blocks fixed on the front surface of the movable blocks, and movable wheels rotatably connected to the outer wall of the movable circular blocks.

[0007] Preferably, a lifting motor is fixed to the bottom of the fixed frame, and the output shaft of the lifting motor passes through the fixed frame and is fixedly connected to the bottom of the lifting screw.

[0008] Preferably, a displacement motor is fixed to the right side of the movable frame, and the output shaft of the displacement motor passes through the movable frame and is fixedly connected to the bidirectional screw.

[0009] Preferably, the bottom of the fixing plate is fixed with fixing rods on both the left and right sides of the fixing frame, and the bottom of the fixing rods is provided with through fixing holes.

[0010] Preferably, a lifting pressure sensor is fixed on the lower inner surface of the fixing frame, and a mounting groove is provided on the front surface of the fixing plate, with a PLC fixed inside the mounting groove.

[0011] Preferably, the front surface of the fixing plate has movable slots on both the left and right sides of the mounting groove, and tension pressure sensors are fixed inside the two movable slots on opposite sides. A rectangular block is fixed to the other end of the tension pressure sensor, and the rear surface of the fixing block is fixedly connected to the rectangular block.

[0012] Beneficial effects

[0013] This utility model provides a yarn tension adjustment device for a polyester yarn spinning machine. Compared with the prior art, it has the following advantages:

[0014] 1. The yarn tension adjustment device of this polyester yarn spinning machine, by setting up a tension adjustment mechanism, rotates the lifting screw, which can lower the lifting block, moving frame and moving wheel, thus tightening the yarn. If the yarn is not taut when it descends to the bottom, rotate the double screw to separate the moving block and moving wheel, which can further tighten the yarn and make it taut.

[0015] 2. The yarn tension adjustment device of this polyester yarn spinning machine is equipped with a PLC, a lifting pressure sensor, a rectangular block and a tension pressure sensor. The moving wheel moves, which tightens the yarn. The yarn pulls the guide wheel, causing the guide wheel to expand outward. The tension pressure sensor senses the pressure. When the set value is reached, the PLC shuts down the displacement motor and the lifting motor to prevent excessive force from causing the yarn to break. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the movable frame and the fixed plate in this utility model.

[0019] In the diagram: 1. Tension adjustment mechanism; 101. Fixed circular block; 102. Bidirectional screw; 103. Moving frame; 104. Moving circular block; 105. Moving wheel; 106. Lifting screw; 107. Guide wheel; 108. Rectangular block; 109. Lifting block; 110. Fixing frame; 2. Tension and pressure sensor; 3. Fixing rod; 4. Fixing hole; 5. Lifting motor; 6. Lifting pressure sensor; 7. Displacement motor; 8. Fixing plate; 9. PLC; 10. Mounting slot; 11. Movable slot; 12. Rectangular block. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-3 This utility model provides a technical solution: a yarn tension adjusting device for a polyester yarn spinning machine, including a fixed plate 8. A tension adjusting mechanism 1 is provided on the front surface of the fixed plate 8. The tension adjusting mechanism 1 includes two guide wheels 107. Two fixed circular blocks 101 are rotatably connected inside the guide wheels 107. A fixed frame 110 is fixed to the bottom of the fixed plate 8. A lifting screw 106 is rotatably connected inside the fixed frame 110. A lifting block 109 is screwed onto the outer wall of the lifting screw 106. A movable frame 103 is fixed to the front surface of the lifting block 109. A bidirectional screw 102 is rotatably connected inside the movable frame 103. Two movable blocks 108 are screwed onto the outer wall of the bidirectional screw 102. Two movable blocks 108 are fixed to the front surface of the movable blocks 108. The movable circular block 104 has a movable wheel 105 rotatably connected to its outer wall, allowing for multi-directional adjustment of the wheel 105's position. A lifting motor 5 is fixed to the bottom of the fixed frame 110, with its output shaft passing through the fixed frame 110 and fixedly connected to the bottom of the lifting screw 106, enabling the lifting screw 106 to rotate. A displacement motor 7 is fixed to the right side of the movable frame 103, with its output shaft passing through the movable frame 103 and fixedly connected to the bidirectional screw 102, allowing the bidirectional screw 102 to rotate. The bottom of the fixed plate 8 is located on both the left and right sides of the fixed frame 110, with fixed rods 3 fixed thereon. The bottom of the fixed rods 3 has through holes 4 for easy installation of the device.

[0022] Furthermore, a lifting pressure sensor 6 is fixed to the lower inner surface of the fixing frame 110, and a mounting groove 10 is opened on the front surface of the fixing plate 8. A PLC 9 is fixed inside the mounting groove 10, which can automatically control the start of the displacement motor 7. Movable grooves 11 are opened on both the left and right sides of the mounting groove 10 on the front surface of the fixing plate 8. Tension pressure sensors 2 are fixed on opposite sides inside the two movable grooves 11. A rectangular block 12 is fixed to the other end of the tension pressure sensor 2. The rear surface of the fixed round block 101 is fixedly connected to the rectangular block 12, which can detect the tension of the yarn.

[0023] During operation, a pressure value is set inside PLC9. If tension pressure sensor 2 does not detect pressure, PLC9 starts lifting motor 5. Lifting motor 5 rotates lifting screw 106, causing lifting block 109 and moving frame 103 to descend. Moving frame 103, along with moving block 108, moving block 104, and moving wheel 105, descends, thus tightening the yarn. If the yarn is not taut when moving wheel 105 reaches the bottom, lifting pressure sensor 6 detects pressure, and PLC9 starts displacement motor 7. Displacement motor 7 rotates bidirectional screw 102, causing... The two moving blocks 108, the moving circular block 104, and the moving wheel 105 are separated, which can further tighten the yarn and make it straight. The straightened yarn will pull the guide wheel 107, causing the guide wheel 107 to expand outward with the fixed circular block 101 and the rectangular block 12. The rectangular block 12 squeezes the tension pressure sensor 2, which senses the pressure. When the pressure set value is reached, PLC9 shuts down the displacement motor 7 and the lifting motor 5 to prevent excessive force from causing the yarn to break. Both the tension pressure sensor 2 and the lifting pressure sensor 6 use BCM-H3 stainless steel pressure sensors.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] 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 yarn tension adjusting device for a polyester yarn spinning machine, comprising a fixed plate (8), characterized in that: The front surface of the fixed plate (8) is provided with a tension adjustment mechanism (1). The tension adjustment mechanism (1) includes two guide wheels (107). Two fixed round blocks (101) are rotatably connected inside the guide wheels (107). A fixed frame (110) is fixed at the bottom of the fixed plate (8). A lifting screw (106) is rotatably connected inside the fixed frame (110). A lifting block (109) is screwed onto the outer wall of the lifting screw (106). A moving frame (103) is fixed on the front surface of the lifting block (109). A bidirectional screw (102) is rotatably connected inside the moving frame (103). Two moving blocks (108) are screwed onto the outer wall of the bidirectional screw (102). Two moving round blocks (104) are fixed on the front surface of the moving block (108). A moving wheel (105) is rotatably connected to the outer wall of the moving round block (104).

2. The yarn tension adjusting device for a polyester yarn spinning machine according to claim 1, characterized in that: A lifting motor (5) is fixed to the bottom of the fixed frame (110), and the output shaft of the lifting motor (5) passes through the fixed frame (110) and is fixedly connected to the bottom of the lifting screw (106).

3. The yarn tension adjusting device for a polyester yarn spinning machine according to claim 2, characterized in that: A displacement motor (7) is fixed on the right side of the movable frame (103), and the output shaft of the displacement motor (7) passes through the movable frame (103) and is fixedly connected to the bidirectional screw (102).

4. The yarn tension adjusting device for a polyester yarn spinning machine according to claim 3, characterized in that: The bottom of the fixing plate (8) is fixed with fixing rods (3) on both the left and right sides of the fixing frame (110), and the bottom of the fixing rods (3) is provided with through fixing holes (4).

5. The yarn tension adjusting device for a polyester yarn spinning machine according to claim 4, characterized in that: A lifting pressure sensor (6) is fixed on the lower inner surface of the fixing frame (110), and a mounting groove (10) is provided on the front surface of the fixing plate (8). A PLC (9) is fixed inside the mounting groove (10).

6. The yarn tension adjusting device for a polyester yarn spinning machine according to claim 5, characterized in that: The front surface of the fixing plate (8) is provided with movable slots (11) on both the left and right sides of the mounting slot (10). Tension pressure sensors (2) are fixed on opposite sides of the two movable slots (11). A rectangular block (12) is fixed to the other end of the tension pressure sensor (2). The rear surface of the fixing round block (101) is fixedly connected to the rectangular block (12).

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