Constant tension control system for calender spindle rack in rolling mill room

Abstract

This utility model relates to the field of calendering equipment technology and discloses a constant tension control system for the spindle rack in a calendering spindle room. The system includes a spindle rack, a first rack, a second rack, a third rack, a tension sensor installed in the second rack, and a tension adjustment assembly installed in the first rack. The tension adjustment assembly includes a housing, a first hydraulic rod fixed to the housing, a movable plate fixed to the movable end of the first hydraulic rod, and a guide rod fixed inside the housing. The movable plate is slidably connected to the outside of the guide rod and has a circular groove for the steel wire to pass through. The system also includes a winding mechanism installed in the third rack, which includes a motor, a radius adjustment assembly, and a rotating drum. This utility model achieves active, real-time adjustment of the steel wire tension through the closed-loop cooperation of the tension sensor and the tension adjustment assembly, ensuring constant and reliable tension. Simultaneously, the design of the radius adjustment assembly makes drum replacement convenient and quick, improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of calendering equipment technology, and in particular to a constant tension control system for the calendering spindle rack. Background Technology

[0002] In the calendering process, such as in the manufacturing of composite materials like tire cords, a large amount of steel wire needs to be smoothly and evenly guided from the spindle rack in the spindle room and transported to the subsequent calendering machine. As the source of the steel wire feeding, the smoothness of the guiding process of the spindle rack is fundamental to ensuring the quality of the final product.

[0003] Maintaining constant wire tension is a critical process requirement in such continuous production processes. If the tension of the wire fluctuates too much during the opening process, for example, excessive tension will cause the wire to be overstretched or deformed, while insufficient tension will cause the wire to become loose, unevenly arranged, or misaligned when entering the rolling process. All of these will seriously affect the uniformity and structural strength of the finished product.

[0004] Existing spindle guide devices have certain limitations in tension control. Many systems use relatively simple passive damping methods or open-loop control to provide tension, such as relying on friction or coarse speed coordination. However, in actual high-speed guide processes, the diameter of the wire drum is constantly decreasing, and the guide speed may also change. These factors will cause dynamic fluctuations in the actual tension of the wire.

[0005] These traditional passive or open-loop control methods generally lack the ability to detect wire tension in real time and online, and are even less capable of actively and in a closed-loop manner to compensate for and adjust the tension based on the detected actual deviation. When tension fluctuates, the system cannot respond quickly, resulting in poor tension consistency of the wire throughout the entire opening path, making it difficult to meet the stringent requirements of constant tension in high-precision rolling processes.

[0006] Therefore, this utility model proposes a constant tension control system for the spindle rack in the calendering room to address the shortcomings of the existing technology. Utility Model Content

[0007] In view of the existing technology, the constant tension control system for the opening of the spindle rack in the rolling mill room lacks the ability to detect the wire tension in real time and cannot actively adjust the closed loop according to the tension deviation, resulting in large fluctuations and instability of the wire tension during the opening process. The present invention aims to provide a structurally improved constant tension control system for the opening of the spindle rack in the rolling mill room that can effectively solve the above problems.

[0008] This utility model provides a constant tension control system for a calender spindle rack in a rolling mill, comprising: a spindle rack; a first cabinet rack disposed downstream of the spindle rack; a second cabinet rack disposed downstream of the first cabinet rack; and a tension sensor installed in the second cabinet rack; the system further comprises a tension adjustment component installed in the first cabinet rack.

[0009] The tension adjustment assembly has a specific structure, comprising: a housing fixed inside the first cabinet; a first hydraulic rod fixedly connected to the housing; a movable plate fixedly connected to the movable end of the first hydraulic rod; and a guide rod fixedly connected inside the housing.

[0010] Furthermore, the movable plate and the guide rod are combined by a sliding connection, with the movable plate slidably connected to the outside of the guide rod. This arrangement ensures that the movable plate can reciprocate stably under the drive of the first hydraulic rod.

[0011] Preferably, the movable plate has a circular groove inside, which is used for the steel wire to pass through. After the steel wire passes through the circular groove, the lifting and lowering of the movable plate can directly change the movement path of the steel wire, thereby adjusting the tension.

[0012] Preferably, the constant tension control system for the calender spindle rack in the calendering room further includes a third cabinet, which is located downstream of the second cabinet and is used to accommodate the subsequent winding mechanism.

[0013] Preferably, as a specific rack implementation, the spindle rack includes a long plate extending rearward; the first cabinet, the second cabinet, and the third cabinet are all fixedly connected to the long plate, thereby forming a stable, integrated system base and ensuring the precise positional relationship between the components.

[0014] Preferably, the constant tension control system for the calender spindle rack in the calendering room further includes a mounting plate, which is fixed inside the third cabinet; and a motor, which is fixedly connected to the rear of the mounting plate and is used to provide rotational power for the winding mechanism.

[0015] Preferably, the constant tension control system for the calender spindle rack in the rolling mill room further includes a radius adjustment component; the radius adjustment component includes: a second hydraulic rod, which is fixedly connected to the center position of the mounting plate; and a ring, which is fixedly connected to the movable end of the second hydraulic rod.

[0016] Preferably, the radius adjustment assembly further includes a connecting rod rotatably connected to the ring; and an extension bar rotatably connected to the connecting rod, wherein the second hydraulic rod drives the extension bar to move via the ring and the connecting rod.

[0017] Preferably, the radius adjustment assembly further includes a round rod, which is fixedly connected inside the mounting plate; the extension strip is slidably connected to the round rod.

[0018] Preferably, the constant tension control system for the calender spindle rack in the calendering room further includes a rotating drum, which is sleeved outside the extension bar. The extension bar expands or contracts radially by sliding on the round rod, thereby clamping or releasing the rotating drum.

[0019] This utility model has the following beneficial effects: 1. This utility model, by setting up a closed-loop cooperation between a tension sensor and a tension adjustment component, utilizes the tension sensor to detect the tension of the steel wire in real time, and uses feedback to control the hydraulic rod in the tension adjustment component to drive the movable plate to move, actively changing the deflection angle of the steel wire. This solves the problem in the prior art that it is difficult to actively adjust the tension of the steel wire in real time, resulting in inconsistent tension, and achieves the technical effects of closed-loop control, sensitive response, and constant and reliable tension.

[0020] 2. This utility model, by setting a radius adjustment component, uses a hydraulic rod to drive a linkage mechanism to make the extension bar retract towards the center or expand outward, thereby achieving rapid clamping and release of the rotating drum. This solves the problems of inconvenience, time and labor consumption in replacing the winding rotating drum in the prior art, and achieves the technical effect of convenient and quick replacement of rotating drums of different specifications and improved production preparation efficiency.

[0021] 3. This utility model solves the problem of scattered installation of functional components in the prior art, which leads to a loose overall structure and inaccurate positioning, by setting a long plate extending from the spindle frame and fixing the first cabinet, the second cabinet, and the third cabinet, which are equipped with tension adjustment components, tension sensors, and winding mechanisms, to this long plate. It achieves the technical effect of high system integration, compact and stable structure, and accurate steel wire transmission path. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the constant tension control system for the calender spindle rack in the calendering room proposed in this utility model; Figure 2 This is a schematic diagram of the tension adjustment component of the constant tension control system for the calender spindle rack in the calendering spindle room proposed in this utility model; Figure 3This is a schematic diagram of the tension sensor in the constant tension control system for the calender spindle rack in the calendering spindle room proposed in this utility model; Figure 4 This is a schematic diagram of the rotating drum of the constant tension control system for the calender spindle rack in the calendering spindle room proposed in this utility model; Figure 5 This is a schematic diagram of the radius adjustment component of the constant tension control system for the calender spindle rack in the calendering spindle room proposed in this utility model; Figure 6 This is a schematic diagram of the circular rod in the constant tension control system for the calendering spindle rack in the calendering spindle room proposed in this utility model.

[0023] Legend: 1. Spindle frame; 2. Steel wire; 3. First cabinet frame; 4. Second cabinet frame; 5. Third cabinet frame; 6. Tension sensor; 7. Tension adjustment assembly; 701. First hydraulic rod; 702. Housing; 703. Movable plate; 704. Guide rod; 8. Radius adjustment assembly; 801. Mounting plate; 802. Motor; 803. Round rod; 804. Rotary drum; 805. Second hydraulic rod; 806. Ring; 807. Connecting rod; 808. Extension bar. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Example: Please refer to Figures 1 to 6 This utility model provides a constant tension control system for the spindle rack in a rolling mill room, which aims to solve the problem in the prior art that it is difficult to detect and actively adjust the tension of the steel wire 2 in real time, resulting in unstable tension of the steel wire 2 and affecting the quality of subsequent processes.

[0026] like Figure 1As shown, the constant tension control system for the spinning spindle rack in the rolling mill includes a spindle rack 1; the spindle rack 1 includes a long plate extending to the rear; the system also includes a first cabinet rack 3, a second cabinet rack 4, and a third cabinet rack 5; the first cabinet rack 3, the second cabinet rack 4, and the third cabinet rack 5 are all fixedly connected to the long plate; the first cabinet rack 3 is located downstream of the spindle rack 1, the second cabinet rack 4 is located downstream of the first cabinet rack 3, and the third cabinet rack 5 is located downstream of the second cabinet rack 4; the system also includes a tension sensor 6 installed in the second cabinet rack 4, and a tension adjustment component 7 installed in the first cabinet rack 3, the tension adjustment component 7 being used to actively adjust the tension of the steel wire 2; Please refer to Figure 2 The tension adjustment assembly 7 includes a housing 702 fixed inside the first cabinet 3, a first hydraulic rod 701 fixedly connected to the housing 702, and a movable plate 703 fixedly connected to the movable end of the first hydraulic rod 701. A guide rod 704 is fixedly connected inside the housing 702, and the movable plate 703 is slidably connected to the outside of the guide rod 704 to make the sliding of the movable plate 703 more stable. A circular groove is provided inside the movable plate 703 for the steel wire 2 to pass through. When the first hydraulic rod 701 drives the movable plate 703 to move up and down, the deflection angle of the path of the steel wire 2 passing through the circular groove changes accordingly, thereby adjusting the tension of the steel wire 2.

[0027] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The system also includes a mounting plate 801 fixed inside the third cabinet 5, a motor 802 fixedly connected to the rear of the mounting plate 801, a radius adjustment component 8, a second hydraulic rod 805 fixedly connected to the center of the mounting plate 801, a ring 806 fixedly connected to the movable end of the second hydraulic rod 805, a connecting rod 807 rotatably connected to the ring 806, an extension bar 808 rotatably connected to the connecting rod 807, a round rod 803 fixedly connected inside the mounting plate 801, and the extension bar 808 slidably connected to the round rod 803. The system also includes a rotating drum 804 sleeved on the outside of the extension bar 808.

[0028] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to ensure the overall structural stability of the system and the path accuracy of the steel wire 2 during transmission, please refer to... Figure 1The spindle frame 1 includes a long plate extending to the rear. The first cabinet frame 3, the second cabinet frame 4, and the third cabinet frame 5 are all fixedly connected to the long plate. This integrated rack design ensures a precise and stable positional relationship between the various functional cabinet frames.

[0029] For a specific implementation of the internal winding mechanism of the third cabinet 5, please refer to Figures 3 to 6 The third cabinet 5 has a mounting plate 801 fixed inside. The motor 802 is fixedly connected to the rear of the mounting plate 801. The radius adjustment component 8 is set on the mounting plate 801. The second hydraulic rod 805 of the radius adjustment component 8 is fixedly connected to the center of the mounting plate 801. The ring 806 is fixedly connected to the movable end of the second hydraulic rod 805. Multiple connecting rods 807 are arranged in a ring array and are rotatably connected to the ring 806. Each connecting rod 807 is rotatably connected to an extension bar 808. A round rod 803 is fixedly connected inside the mounting plate 801. The extension bar 808 is slidably connected to the round rod 803. The output end of the motor 802 is connected to the round rod 803 for driving the round rod 803 to rotate. Finally, the rotating drum 804 is sleeved on the outside of the extension bar 808 and is clamped or released by the expansion and contraction of the extension bar 808. At the same time, the rotation of the round rod 803 drives it to perform a winding operation.

[0030] The working principle of the constant tension control system for the calender spindle rack in this utility model is as follows: The steel wire 2 is evenly guided by the spindle frame 1 and passes through the first cabinet frame 3, the second cabinet frame 4 and the third cabinet frame 5 in sequence. The steel wire 2 passes through the circular groove on the movable plate 703 of the tension adjustment component 7 in the first cabinet frame 3, and then passes through the detection of the tension sensor 6 in the second cabinet frame 4. The tension sensor 6 detects the tension value of the steel wire 2 in real time and compares the value with the preset value. When there is a deviation, the control system drives the tension adjustment component 7 in the first cabinet frame 3 to move.

[0031] In the tension adjustment assembly 7, the first hydraulic rod 701 is activated, and its movable end drives the fixedly connected movable plate 703 to move up and down. The movable plate 703 slides stably on the outside of the guide rod 704. The movement of the movable plate 703 forces the steel wire 2 in its circular groove to change the deflection angle, thereby rapidly increasing or decreasing the tension of the steel wire 2. The adjustment result is detected again by the downstream tension sensor 6, forming a closed-loop control, so that the steel wire 2 maintains a constant tension during the opening process.

[0032] After tension adjustment, the steel wire 2 enters the third cabinet 5 and is wound up by the motor 802. The motor 802 is fixedly connected to the rear of the mounting plate 801. When the drum 804 needs to be replaced, the radius adjustment component 8 is activated, and the second hydraulic rod 805 fixed at the center of the mounting plate 801 is activated, pushing the fixedly connected ring 806. The ring 806 drives the rotatably connected connecting rod 807, and the connecting rod 807 then pulls the rotatably connected extension bar 808. The extension bar 808 slides on the round rod 803 fixedly connected inside the mounting plate 801 and retracts towards the center, thereby loosening the clamping on the drum 804 and facilitating the replacement of the new drum 804.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A constant tension control system for the spindle rack in the rolling mill room, including: Spindle frame (1); The first cabinet frame (3) is located downstream of the spindle frame (1); The second cabinet (4) is located downstream of the first cabinet (3); Tension sensor (6), which is installed inside the second cabinet (4); The system is characterized in that it further includes a tension adjustment component (7), which is installed inside the first cabinet frame (3), and the tension adjustment component (7) includes: The outer casing (702) is fixed inside the first cabinet frame (3); The first hydraulic rod (701) is fixedly connected to the outer casing (702); A movable plate (703) is fixedly connected to the movable end of the first hydraulic rod (701); And a guide rod (704), which is fixedly connected inside the housing (702), and the movable plate (703) is slidably connected to the outside of the guide rod (704).

2. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 1, characterized in that, The movable plate (703) has a circular groove inside, which is used for the steel wire (2) to pass through.

3. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 1, characterized in that, The system also includes a third cabinet (5), which is located downstream of the second cabinet (4).

4. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 3, characterized in that, The system also includes a mounting plate (801) fixed inside the third cabinet (5); and a motor (802) fixedly connected to the rear of the mounting plate (801).

5. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 4, characterized in that, It also includes a radius adjustment assembly (8), which includes: a second hydraulic rod (805) fixedly connected to the center of the mounting plate (801); and a ring (806) fixedly connected to the movable end of the second hydraulic rod (805).

6. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 5, characterized in that, The radius adjustment assembly (8) further includes: a connecting rod (807) rotatably connected to the ring (806), and an extension bar (808) rotatably connected to the connecting rod (807).

7. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 6, characterized in that, The radius adjustment assembly (8) also includes a round rod (803) which is fixedly connected inside the mounting plate (801), and the extension strip (808) is slidably connected to the round rod (803).

8. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 7, characterized in that, It also includes a rotating cylinder (804) which is sleeved on the outside of the extension strip (808).

9. The constant tension control system for the calender spindle rack in the rolling mill room according to claim 3, characterized in that, The spindle frame (1) includes a long plate extending to the rear, and the first cabinet frame (3), the second cabinet frame (4) and the third cabinet frame (5) are all fixedly connected to the long plate.

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