High-clamping-force pressurizing arm of non-channel false twist texturing machine

Abstract

The invention discloses a high clamping force pressurizing arm of a shaft-free false twist texturing machine. Belongs to the technical field of pressurizing arms, and can realize adjustable high-pressure stable clamping of silk threads through the synergistic effect of a pressure screw rod, a wedge-shaped locking block and an auxiliary supporting rod. A high-clamping-force pressurizing arm of a channel-free false twist texturing machine comprises a connecting plate, a fixed plate, a movable arm, a first friction roller and a second friction roller. The device is characterized in that one end of a fixed plate is fixedly connected with a connecting plate, and a first friction roller is rotationally connected with the other end of the connecting plate; the movable arm is rotationally connected with the fixed plate, and the second friction roller is rotationally connected with the movable arm; the pressurizing arm further comprises a force applying mechanism; the force applying mechanism comprises a pressure screw rod and a strong pressure spring; one end of the pressure screw rod is rotationally connected with the movable arm; the strong pressure spring is sleeved on the pressure screw rod; one end of the strong pressure spring acts on the fixing plate, and the other end is pressed by the locking nut.

Description

Technical Field

[0001] This invention relates to the field of pressure arm technology, specifically a high clamping force pressure arm for a channelless false twisting deformation machine. Background Technology

[0002] In the yarn processing of a channelless false-twist texturing machine, the pressure arm is a key component for controlling yarn tension. It applies stable clamping pressure to the yarn through two friction rollers. Currently, most widely used pressure arms employ springs or fixed counterweights to provide pressure to the moving friction rollers, resulting in a constant pressure. When processing different types of yarn or under different working conditions, the yarn tension itself will fluctuate. If the yarn tension increases, the constant clamping pressure will superimpose, easily leading to excessive compression of the yarn, causing damage such as breakage and fuzz. If the yarn tension decreases, it may lead to insufficient clamping force, causing yarn slippage or loss of tension control. To solve this problem, existing technologies have developed electronic control adjustment schemes using motors, sensors, and closed-loop control systems. While these schemes can achieve variable pressure, they suffer from high cost, complex structure, and poor reliability and maintainability in harsh workshop environments with high temperature, high humidity, and high fly waste.

[0003] Therefore, there is an urgent need to develop a high-clamping-force pressure arm for a channelless false twisting deformation machine to solve the problems in the existing technology. Summary of the Invention

[0004] The purpose of this invention is to provide a high-clamping-force pressure arm for a channelless false twisting deformer, which can achieve adjustable high-pressure stable clamping of the yarn through the synergistic action of the pressure screw, wedge-shaped locking block and auxiliary support rod. It has a simple structure and is easy to use, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-clamping-force pressure arm for a channelless false-twist texturing machine includes a connecting plate, a fixed plate, a movable arm, a first friction roller, and a second friction roller; one end of the fixed plate is fixedly connected to the connecting plate, and the first friction roller is rotatably connected to the other end of the connecting plate; the movable arm is rotatably connected to the fixed plate, and the second friction roller is rotatably connected to the movable arm; The pressure arm further includes a force-applying mechanism; the force-applying mechanism includes a pressure screw and a strong compression spring; one end of the pressure screw is rotatably connected to the movable arm; the strong compression spring is sleeved on the pressure screw; one end of the strong compression spring acts on the fixed plate, and the other end is pressed by a locking nut.

[0006] By adopting the above technical solution, tightening the locking nut compresses the powerful compression spring, and the spring force is converted into a downward pressure torque on the movable arm through the pressure screw, thereby providing a preset high clamping force for the friction roller.

[0007] As a further aspect of the present invention: the force-applying mechanism further includes: a spring seat; the spring seat is fixedly connected to the fixed plate; the upper end of the high-strength compression spring acts on the spring seat.

[0008] By adopting the above technical solution, the spring seat provides a stable and uniform bearing surface for the powerful compression spring, ensuring the stability of the force-applying mechanism and avoiding local stress concentration.

[0009] As a further aspect of the present invention: the pressure arm further includes a pressure locking mechanism; the pressure locking mechanism includes a wedge-shaped locking block; the wedge-shaped locking block is disposed within a wedge-shaped surface between the movable arm and the fixed plate.

[0010] By adopting the above technical solution, the gap between the movable arm and the fixed plate is tightened by the wedge-shaped locking block, and the position of the movable arm is locked to prevent the clamping force from weakening due to vibration or creep under high pressure.

[0011] As a further aspect of the present invention, the pressure locking mechanism further includes a locking bolt; the locking bolt is threadedly connected to the fixing plate, and the end of the locking bolt contacts the wedge-shaped locking block.

[0012] By adopting the above technical solution, tightening the locking bolt can drive the wedge-shaped locking block to move laterally to achieve expansion and tightening, providing a reliable and operable mechanical locking.

[0013] As a further aspect of the present invention, the pressure arm further includes a rigidity enhancement mechanism; the rigidity enhancement mechanism includes an auxiliary support rod; the auxiliary support rod is rotatably connected to the fixed plate.

[0014] By adopting the above technical solution, the auxiliary support rod provides lateral auxiliary support for the movable arm, increases the rigidity of the movable arm, and suppresses its bending deformation under high pressure.

[0015] As a further aspect of the present invention: the rigidity enhancement mechanism further includes: an adjusting screw; the adjusting screw is threadedly connected to the auxiliary support rod; the end of the adjusting screw contacts the side of the movable arm.

[0016] By adopting the above technical solution, the preload force supporting the movable arm can be precisely adjusted by turning the adjusting screw, thereby optimizing the rigidity enhancement effect.

[0017] As a further embodiment of the present invention: a load-bearing block is provided on the side of the movable arm, and the end of the adjusting screw contacts the load-bearing block.

[0018] By adopting the above technical solution, the load-bearing block provides a locally reinforced contact surface for the adjusting screw, avoiding damage to the movable arm body and ensuring effective transmission of support force.

[0019] As a further aspect of the present invention: the surfaces of the first friction roller and / or the second friction roller are provided with a hard wear-resistant coating.

[0020] By adopting the above technical solutions, the hard wear-resistant coating improves the surface hardness and wear resistance of the friction roller, adapts to continuous friction under high clamping force, and extends its service life.

[0021] As a further aspect of the present invention, the hard wear-resistant coating is a tungsten carbide coating or a ceramic coating.

[0022] By adopting the above technical solutions, tungsten carbide or ceramic coatings have extremely high hardness and chemical stability, and can effectively resist wear and corrosion under high pressure.

[0023] As a further aspect of the present invention, the first friction roller is located below the second friction roller.

[0024] By adopting the above technical solution, the spatial relationship between the upper and lower friction rollers is clarified, which constitutes the basic working condition for the yarn to pass through from top to bottom and be clamped.

[0025] Compared with the prior art, the beneficial effects of the present invention are: through the synergistic action of the pressure screw, the wedge-shaped locking block and the auxiliary support rod, adjustable high-pressure stable clamping of the wire is achieved.

[0026] Other features and advantages of the present invention will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description

[0027] Figure 1 This is one of the overall structural schematic diagrams in an embodiment of the present invention; Figure 2 This is one of the overall structural schematic diagrams in an embodiment of the present invention; Figure 3 yes Figure 2 Enlarged view of point A; Figure 4 This is the right view in an embodiment of the present invention; Figure 5 yes Figure 4 Enlarged view of point B.

[0028] The figures are labeled as follows: 1. Connecting plate; 2. Fixed plate; 3. Movable arm; 4. First friction roller; 41. Hard wear-resistant coating; 5. Second friction roller; 6. Force application mechanism; 61. Pressure screw; 62. Strong compression spring; 63. Locking nut; 64. Spring seat; 7. Pressure locking mechanism; 71. Wedge-shaped locking block; 72. Locking bolt; 8. Rigidity enhancement mechanism; 81. Auxiliary support rod; 82. Adjusting screw; 83. Load-bearing block. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: This embodiment provides a high clamping force pressure arm for a channelless false twisting deformation machine, the core of which is to achieve adjustable, stable and high-value wire clamping pressure through mechanical means.

[0031] See Figures 1 to 5 The pressure arm includes a basic frame, a friction roller assembly, and three sets of functional mechanisms.

[0032] The basic frame consists of a connecting plate 1 and a fixing plate 2. The right end of the fixing plate 2 is fixedly connected to the right end of the connecting plate 1 by bolts. The connecting plate 1 is inclined at the left and right.

[0033] The friction roller assembly includes a first friction roller 4 and a second friction roller 5. The first friction roller 4 is rotatably connected to the left end of the connecting plate 1 via a bearing and is in a low position. The second friction roller 5 is located directly above the first friction roller 4.

[0034] The right end of the movable arm 3 is rotatably connected to the left side of the fixed plate 2 via a pivot, allowing it to swing about this pivot in a vertical plane. The second friction roller 5 is mounted on the left end of the movable arm 3 via a bearing, forming a rotatable connection.

[0035] The three sets of functional mechanisms are as follows: First, the force-applying mechanism 6. This mechanism includes a pressure screw 61, a strong compression spring 62, a locking nut 63, and a spring seat 64. The spring seat 64 is fixed to the upper part of the fixed plate 2 by bolts. The lower end of the pressure screw 61 is rotatably connected to the hinge seat on the upper surface of the movable arm 3. The strong compression spring 62 is sleeved on the pressure screw 61, and its lower end acts on the spring seat 64. The locking nut 63 engages with the threaded section at the upper end of the pressure screw 61. Tightening the locking nut 63 compresses the strong compression spring 62.

[0036] Second, the pressure locking mechanism 7. This mechanism includes a wedge-shaped locking block 71 and a locking bolt 72. In the hinge area between the movable arm 3 and the fixed plate 2, there are matching wedge-shaped surfaces. The wedge-shaped locking block 71 is inserted into the gap formed by the wedge-shaped surface. The locking bolt 72 is screwed laterally into the threaded hole of the fixed plate 2, with its end abutting against the wedge-shaped locking block 71.

[0037] Third, the rigidity enhancement mechanism 8. This mechanism includes an auxiliary support rod 81, an adjusting screw 82, and a load-bearing block 83. One end of the auxiliary support rod 81 is hinged to the middle of the fixed plate 2. The adjusting screw 82 engages with a threaded hole at the other end of the auxiliary support rod 81. The load-bearing block 83 is fixed to the right side of the movable arm 3.

[0038] Its working principle is as follows: During installation, tightening the locking nut 63 compresses the powerful compression spring 62. The resulting elastic force is converted into a powerful torque on the movable arm 3 through the pressure screw 61, driving the second friction roller 5 to press against the first friction roller 4 under high pressure, forming an initial high clamping force.

[0039] Subsequently, tighten the locking bolt 72, push the wedge-shaped locking block 71 to move laterally, tighten the hinge joint between the movable arm 3 and the fixed plate 2, eliminate the gap and lock it approximately to prevent pressure relaxation.

[0040] Finally, the adjusting screw 82 is turned so that its tip presses against the load-bearing block 83, providing lateral auxiliary support for the movable arm 3, suppressing the deformation of the arm body under high pressure, and ensuring clamping stability.

[0041] The yarn passes from top to bottom through the pressing area between the first friction roller 4 and the second friction roller 5 to obtain a high-tension grip.

[0042] Example 2: This embodiment, based on Embodiment 1, specifies the surface treatment of the friction roller and demonstrates a mechanism variant.

[0043] See Figure 2 In this embodiment, the outer cylindrical surface of the first friction roller 4 is provided with a hard wear-resistant coating 41. The hard wear-resistant coating 41 is a tungsten carbide coating.

[0044] The powerful compression spring 62 in the force application mechanism 6 can be replaced by a disc spring assembly to provide greater initial pressure within the same installation space.

[0045] In the pressure locking mechanism 7, the wedge-shaped locking block 71 can be composed of two symmetrical inclined sliders, which can achieve double-sided symmetrical locking through opposite movement.

[0046] The remaining structure, connections, and working principle are the same as in Example 1. The tungsten carbide coating effectively resists wear under high pressure, the disc spring assembly provides greater and more stable elastic force, and the symmetrical locking slider makes the locking force distribution more uniform.

[0047] This invention provides a high-clamping-force pressure arm for a channelless false twisting texturer, which can achieve adjustable high-pressure stable clamping of the yarn through the synergistic action of the pressure screw, wedge-shaped locking block and auxiliary support rod, with high reliability.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-clamping-force pressure arm for a channelless false-twist texturing machine, comprising a connecting plate, a fixed plate, a movable arm, a first friction roller, and a second friction roller; characterized in that: One end of the fixed plate is fixedly connected to the connecting plate, and the first friction roller is rotatably connected to the other end of the connecting plate; The movable arm is rotatably connected to the fixed plate, and the second friction roller is rotatably connected to the movable arm; The pressure arm further includes a force-applying mechanism; the force-applying mechanism includes a pressure screw and a strong compression spring; one end of the pressure screw is rotatably connected to the movable arm; the strong compression spring is sleeved on the pressure screw; one end of the strong compression spring acts on the fixed plate, and the other end is pressed by a locking nut.

2. The high clamping force pressure arm of the channelless false twisting deformation machine according to claim 1, characterized in that, The force-applying mechanism further includes: a spring seat; the spring seat is fixedly connected to the fixed plate; the upper end of the high-strength compression spring acts on the spring seat.

3. The high clamping force pressure arm of the channelless false twisting deformation machine according to claim 1, characterized in that, The pressure arm further includes a pressure locking mechanism; the pressure locking mechanism includes a wedge-shaped locking block; the wedge-shaped locking block is disposed within the wedge-shaped surface between the movable arm and the fixed plate.

4. The high clamping force pressure arm of a channelless false twisting deformer according to claim 3, characterized in that, The pressure locking mechanism further includes a locking bolt; the locking bolt is threadedly connected to the fixing plate, and the end of the locking bolt contacts the wedge-shaped locking block.

5. The high clamping force pressure arm of a channelless false twisting deformer according to claim 1, characterized in that, The pressure arm further includes a rigidity enhancement mechanism; the rigidity enhancement mechanism includes an auxiliary support rod; the auxiliary support rod is rotatably connected to the fixed plate.

6. The high clamping force pressure arm of a channelless false twisting deformer according to claim 5, characterized in that, The rigidity enhancement mechanism further includes: an adjusting screw; the adjusting screw is threadedly connected to the auxiliary support rod; and the end of the adjusting screw contacts the side of the movable arm.

7. The high clamping force pressure arm of a channelless false twisting deformer according to claim 6, characterized in that, The movable arm has a support block on its side, and the end of the adjusting screw contacts the support block.

8. The high clamping force pressure arm of a channelless false twisting deformer according to claim 1, characterized in that, The surfaces of the first friction roller and / or the second friction roller are provided with a hard, wear-resistant coating.

9. The high clamping force pressure arm of a channelless false twisting deformer according to claim 8, characterized in that, The hard wear-resistant coating is a tungsten carbide coating or a ceramic coating.

10. A high-clamping-force pressure arm for a channelless false-twist texturing machine according to any one of claims 1 to 9, characterized in that, The first friction roller is located below the second friction roller.

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