Wire drawing machine head capable of automatically adjusting and avoiding wire drawing resonance area on line and control method of wire drawing machine head

Abstract

The invention belongs to the technical field of glass fiber wire drawing machines, and particularly relates to a wire drawing machine head capable of automatically adjusting and avoiding a wire drawing resonance area on line and a control method of the wire drawing machine head. Comprising three solutions of a face-to-face taper inward solution, a back-to-back taper outward solution and a rear end disc type pneumatic mechanism. According to the face-to-face taper inward scheme, the front taper sleeve and the rear taper sleeve are inflated bidirectionally to inwards press the vibration reduction component; according to the back-to-back taper outward scheme, a sealing cavity is formed between the front taper sleeve and the rear taper sleeve, and through middle one-way inflation, the two taper sleeves outwards push and press the vibration reduction components which are symmetrically arranged in a stepped mode. According to the rear-end disc type pneumatic mechanism, a vibration reduction component is arranged on the circumference of a bearing seat, and the resonance interval is adjusted through inflation of a rear-end disc type clamping device. According to the wire drawing machine head capable of automatically adjusting and avoiding the wire drawing resonance area on line and the control method of the wire drawing machine head, automatic closed-loop adjustment of rigidity of the machine head can be achieved through components or assemblies such as the vibration sensor and the electric control system, and the technical effect of flexibly avoiding the wire drawing resonance area is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of glass fiber drawing machines, and specifically relates to a drawing machine head capable of automatically adjusting online to avoid a drawing resonance region and a control method thereof. Background Art

[0002] Due to the complexity of the glass fiber drawing process, the variety of varieties, and the large speed span, resonance is inevitable when the drawing machine head rotates. In particular, the Teflon bobbin is made of circular superposition and bonding, and the imbalance is large. If several bobbins are installed on a line, it is difficult for the machine head to overcome the resonance. If it runs in this section, it will shorten the service life of the bearing or even damage it and cause various other problems caused by vibration.

[0003] The solution to this problem is usually to select a speed range based on the user's wire drawing process to design away from the resonance area. Some users choose a single process to avoid the resonance area for wire drawing, so basically two types of machines are used, namely high-speed and low-speed wire drawing machines. In other words, users have to increase their investment, but some so-called high-speed and low-speed models on the market have not completely overcome the resonance problem, which causes great trouble to users.

[0004] Please refer to our company's prior Chinese patent: A machine head soft support rigidity adjustment mechanism, publication number: CN214299890U. Its disadvantage is that a certain speed range must be selected to manually adjust the machine head support rigidity to a suitable operating range to avoid the resonance zone, but this selective manual adjustment form can no longer meet the current high-end composite material product manufacturing. Due to the high line speed of high-end products, the mileage of the yarn is large, that is, the yarn ball has a small inner diameter and a large outer diameter, so the difference between the starting speed and the end speed is large, resulting in the manual adjustment range not meeting an operating range. Summary of the invention

[0005] In view of this, the present application provides a wire drawing machine head and a control method thereof that can automatically adjust online to avoid the wire drawing resonance area, so as to solve all or part of the technical problems described in the background technology part of the present application.

[0006] The inventive idea of ​​this application is to develop a flexible machine head structure that can perform real-time online adjustment of the machine head rigidity, and use vibration sensors, electronically controlled valves, flow detectors, electronic control systems and other components or assemblies to achieve automatic closed-loop adjustment of the machine head rigidity, so as to achieve the technical effect of flexibly avoiding the wire drawing resonance area.

[0007] The solutions provided by this application to solve its technical problems are: A wire drawing machine head capable of automatically adjusting online to avoid a wire drawing resonance region comprises a head spindle, a bearing seat, at least one fixed part, at least one movable part, and at least one vibration-damping component; the bearing seat is arranged on the head spindle; the fixed part, the movable part, and the vibration-damping component are all arranged on the bearing seat; the movable part can move on the bearing seat; a sealed cavity is formed between the fixed part and the movable part; an air filling port is arranged on the sealed cavity; compressed air is supplied from the air filling port to the sealed cavity, which can drive the movable part to extrude the vibration-damping component, and then the head rigidity can be adjusted through the vibration-damping component.

[0008] The technical solutions of this application include three solutions: face-to-face taper inward, back-to-back taper outward and rear disc pneumatic mechanism. The face-to-face taper inward solution uses bidirectional inflation of the front and rear cone sleeves to press the vibration reduction component inward; the back-to-back taper outward solution forms a sealed cavity between the front and rear cone sleeves, and through the middle single-channel inflation, the two cone sleeves push the stepped symmetrically arranged vibration reduction component outward; the rear disc pneumatic mechanism arranges the vibration reduction component on the circumference of the bearing seat, and adjusts the resonance range through inflation of the rear disc clamping device. The following is a detailed description.

[0009] In the face-to-face taper inward solution, the fixed parts include a front seat and a rear seat; the movable parts include a front cone sleeve and a rear cone sleeve; the bearing seat is provided with a front cone portion and a rear cone portion; the front cone and the front cone portions of the front cone sleeve cooperate with each other; the rear cone sleeve and the rear cone portion cooperate with each other; the front cone sleeve and the rear cone sleeve taper inward and the cone surfaces are opposite; vibration damping components are provided between the front cone portions and on the rear cone portions.

[0010] As a preferred solution for the face-to-face taper inward, the wire drawing machine head also includes a change barrel; the bearing seat is arranged on the change barrel, and the front seat and the rear seat are respectively located on the front and rear sides of the change barrel.

[0011] As a preferred solution for the face-to-face taper inward, the sealing cavity includes a front sealing cavity and a rear sealing cavity; the inflation port includes a front inflation port and a rear inflation port; the front sealing cavity is defined between the front seat and the front cone sleeve, and the rear sealing cavity is defined between the rear seat and the rear cone sleeve; the front sealing cavity is provided with a front inflation port, and the rear sealing cavity is provided with a rear inflation port.

[0012] As a preferred solution for back-to-back taper outward, the fixed part includes a changing cylinder; the movable part includes a front cone sleeve and a rear cone sleeve; the bearing seat is provided with a front cone portion, a rear cone portion and a cone sleeve groove between the front cone portion and the rear cone portion; the front cone sleeve and the rear cone sleeve are both arranged in the cone sleeve groove; the front cone sleeve and the front cone portion cooperate with each other; the rear cone sleeve and the rear cone portion cooperate with each other; the tapers of the front cone sleeve and the rear cone sleeve are outward and the cone surfaces are opposite to each other; and vibration damping components are provided on the front cone portion and the rear cone portion.

[0013] As a preferred solution for the back-to-back taper outward, the wire drawing machine head also includes a front seat and a rear seat; the front seat and the rear seat are respectively arranged on the front and rear sides of the changing barrel.

[0014] As a preferred solution for the back-to-back tapered outward solution, a sealed cavity is defined between the change cylinder body, the front cone sleeve, and the rear cone sleeve. The inflation port is arranged on the change cylinder body.

[0015] As a preferred solution for the rear disc pneumatic mechanism, the fixed part includes a cylinder body and a rear seat; the movable part includes a piston; the piston is assembled in the cylinder body, and a sealed cavity is defined between the piston and the cylinder body; and the vibration-damping component is arranged on the rear seat and / or the piston.

[0016] As a preferred solution for the rear-end disc-type pneumatic mechanism, the movable part also includes a disc; the disc includes a horizontal portion and a vertical portion; the vertical portion is located between the rear seat and the piston.

[0017] The control methods corresponding to the above solutions are: A control method for a wire drawing machine head capable of automatically adjusting online to avoid a wire drawing resonance region comprises the following steps: The head vibration detection step uses a vibration sensor to detect the head vibration data in real time; The rigid closed-loop adjustment step is to determine whether the vibration of the machine head is within the normal range based on the detected vibration data of the machine head; if the vibration of the machine head exceeds the normal range, air is supplied to the sealing chamber; the movable part is driven to extrude the vibration-damping component to perform online adjustment on the rigidity of the machine head until the vibration of the machine head is within the normal range.

[0018] Beneficial technical effects: 1. The wire drawing machine head disclosed in the present application can automatically adjust online to avoid the wire drawing resonance area. A pneumatic soft support vibration reduction device is provided on the bearing seat of the main shaft of the head. When the equipment is running, it can detect and feedback the vibration of the head in real time to control PLC control, adopt proportional valve PID adjustment, realize online real-time data collection and exchange, control the soft support vibration reduction device on the bearing seat, control the vibration within an acceptable range, and realize online closed-loop adjustment of the rigidity of the wire drawing machine head.

[0019] 2. The preload force on the bearing seat in the face-to-face taper inward solution of this application is concentrated in the middle part of the bearing seat, and the preload force on the bearing seat in the back-to-back taper outward solution is concentrated at both ends of the bearing seat, which is conducive to optimizing the preload load distribution and meeting the rigidity adjustment needs of different models. The rear disc pneumatic mechanism solution can adjust the rigidity of the machine head in both the axial and radial directions, which is conducive to ensuring the rigidity adjustment effect of the machine head.

[0020] The technical solution and technical effects of the present application are described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : Schematic diagram of the cross section of the face-to-face taper inward solution; Figure 2 : Figure 1 A magnified view of the structure of part A in the middle; Figure 3 : Schematic diagram of the cross section of the back-to-back taper outward solution; Figure 4 : Figure 3 A magnified view of the structure of part B in the middle; Figure 5 : Schematic diagram of the cross section of the rear end disc pneumatic mechanism;

[0022] 1-machine head spindle; 2-bearing seat; 3-fixed part; 4-movable part; 5-vibration reduction component; 6-replacement cylinder; 34-sealed cavity; 341-inflatable port; 21-front cone; 22-rear cone; 31-front seat; 32-back seat; 41-front cone sleeve; 42-rear cone sleeve;

[0023] 10-machine head spindle; 20-bearing seat; 30-fixed part; 40-movable part; 50-vibration reduction component; 60-replacement cylinder; 3040-sealed cavity; 3041-inflatable port; 210-front cone, 220-rear cone; 230-cone sleeve groove; 310-front seat; 320-back seat; 410-front cone sleeve; 420-rear cone sleeve;

[0024] 100-machine head spindle; 200-bearing seat; 300-fixed parts; 400-movable parts; 500-vibration reduction parts, 600-replacement cylinder; 3100-front seat; 3400-sealed cavity; 3410-inflatable port; 3010-cylinder body; 3020-rear seat; 4010-piston, 4020-disc; 4021-horizontal part, 4022-vertical part. DETAILED DESCRIPTION

[0025] Direction convention: In this application, the side where the motor is located on the wire drawing machine head is the back, and the opposite side is the front.

[0026] Explanation of terminology: Machine head rigidity is a special term used when discussing machine head vibration. The size of machine head rigidity is related to the size of machine head vibration and machine head speed.

[0027] See also Figure 1-Figure 2 In the face-to-face taper inward solution of this application, the wire drawing machine head includes: Machine head spindle 1; The bearing seat 2 is provided with a front cone 21 and a rear cone 22, and the front cone 21 and the rear cone 22 are tapered outwards; Two fixing members 3, namely a front seat 31 and a rear seat 32; Two movable parts 4, namely a front cone sleeve 41 and a rear cone sleeve 42; A plurality of vibration-damping components 5 are arranged on the front cone 21 and the rear cone 22, and may be vibration-damping rings, vibration-damping blocks, vibration-damping rings, vibration-damping sleeves, etc.; The bearing seat 2 is arranged on the machine head spindle 1; The front seat 31, the rear seat 32, the front cone sleeve 41, and the rear cone sleeve 42 are all arranged on the bearing seat 2; The front cone sleeve 41 and the front cone portion 21 cooperate with each other, and the rear cone sleeve 42 and the rear cone portion 22 cooperate with each other; The tapers of the front cone sleeve 41 and the rear cone sleeve 42 are inward and the cone surfaces are opposite to each other; The sealing chamber 34 includes a front sealing chamber and a rear sealing chamber. The front sealing chamber is defined between the front seat 31 and the front cone sleeve 41, and the rear sealing chamber is defined between the rear seat 32 and the rear cone sleeve 42. The inflation port 341 includes a front inflation port and a rear inflation port, wherein the front inflation port is arranged on the front sealing cavity, and the rear inflation port is arranged on the rear sealing cavity; Principle and effect description: Air is supplied to the front and rear sealing chambers 34 respectively from the front and rear air filling ports 341; gradually increasing the air pressure of the compressed air can make the front cone sleeve 41 and the rear cone sleeve 42 gradually press the bearing seat 2 and the main shaft 1 of the machine head through the vibration-damping component 5, so as to achieve the purpose of increasing the rigidity of the machine head; gradually reducing the pressure of the compressed air can make the front cone sleeve 41 and the rear cone sleeve 42 gradually loosen the bearing seat 2 and the main shaft 1 of the machine head through the vibration-damping component 5, so as to achieve the purpose of gradually reducing the rigidity of the machine head.

[0028] For general wire drawing machines, increasing the rigidity of the die head can reduce the vibration and noise of the spindle system and increase the accuracy of equipment operation. However, excessive rigidity may lead to increased friction and increased temperature. Therefore, it is necessary and meaningful to adjust the rigidity of the die head online in real time according to the actual speed of the wire drawing machine.

[0029] The wire drawing machine head that this application requests patent protection for can automatically adjust online to avoid the wire drawing resonance area. When the head is operating normally, the bearing seat 2, the front seat 31, the rear seat 32, the front cone sleeve 41, the rear cone sleeve 42, and the vibration reduction component 5 form an online rigidity adjustment mechanism for the head soft support. The vibration sensor can detect the vibration of the head in real time and feed it back to the PLC control, and then the proportional valve PID is used to adjust the gas flow and / or air pressure to achieve online real-time data collection and exchange, and dynamically control the head rigidity adjustment components (including the front cone sleeve and the rear cone sleeve) on the bearing seat to always control the head vibration within an acceptable range. Therefore, it can flexibly adapt to the different speed requirements of the wire drawing machine, dynamically and closed-loop adjust the head rigidity to meet actual production needs.

[0030] On the other hand, in this embodiment, the taper of the front cone 21 and the rear cone 22 of the bearing seat 2 is set to be outward, and the taper of the front cone sleeve 41 and the rear cone sleeve 42 is set to be inward and the front and rear cone surfaces are opposite, which will cause the preload force on the bearing seat 2 to be concentrated in the middle part of the bearing seat 2, which is beneficial to optimize the preload load distribution and meet the rigidity adjustment needs of different models (for example, suitable for large diameter machine heads).

[0031] In a modified implementation of the present embodiment, the wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area further comprises a change cylinder 6; the change cylinder 6 is provided with a bearing seat assembly hole, the bearing seat 2 is arranged in the bearing seat assembly hole, and the front seat 31 and the rear seat 32 are respectively located at the front and rear sides of the change cylinder 6. The change cylinder 6 is used to assemble the wire drawing machine head to the wire drawing machine.

[0032] In a variation of the present embodiment, the wire drawing machine head capable of automatically adjusting online to avoid the wire drawing resonance area also includes a rotating drum, a expansion plate, an upper wire ring, and an end cover. The rotating drum is arranged at the front end of the head spindle 1, the expansion plate is embedded in the rotating drum, the upper wire ring is arranged at the front end of the head spindle, and the end cover is arranged on the upper wire ring. The number of expansion plates can be flexibly configured according to actual needs, such as 12 plates, 18 plates, etc. For the embedded connection relationship between the expansion plate and the rotating drum, please refer to the Chinese patent: A centrifugal wire grabbing mechanism (publication number CN217757269U).

[0033] In a variation of the present embodiment, the wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area also includes a motor, a coupling, and a motor seat; the motor seat is fixedly assembled on the bearing seat 2, the coupling is arranged in the motor seat, the motor is arranged on the motor seat and connected to the head spindle 1 through the coupling.

[0034] When the motor is started, it can drive the rotating drum, the expansion sheet, the upper wire ring and the end cover to rotate together through the head spindle 1 to complete the wire drawing and winding work.

[0035] In a variation of this embodiment, the relative rotation between the rear seat 32 and the bearing seat 2 is limited by a stop screw.

[0036] In a variation of the present embodiment, a front bearing and a rear bearing are further provided between the bearing seat 2 and the machine head spindle 1 .

[0037] In a variation of this embodiment, the wire drawing machine head further includes a sheet expansion and retracting mechanism, which is used to realize the retracting and retracting control of the sheet expansion on the rotating drum. For the sheet expansion and retracting mechanism, please refer to the Chinese patent: A support device for the intermediate cone sleeve of the sheet expansion of the head (publication number CN213803526U).

[0038] In a variation of the present embodiment, an oil mist channel is further provided on the head spindle 1 and the bearing seat 2, and the oil mist channel is used to complete the lubrication and maintenance of the components or assemblies of the wire drawing machine head.

[0039] See also Figure 3-Figure 4 In the back-to-back taper outward solution of this application, the wire drawing machine head includes: Machine head spindle 10; The bearing seat 20 is provided with a front cone portion 210, a rear cone portion 220 and a cone sleeve groove 230 located between the front cone portion 210 and the rear cone portion 220, and the front cone portion 210 and the rear cone portion 220 are tapered inwards; The fixing member 30 includes a change cylinder 60; The movable part 40 includes a front cone sleeve 410 and a rear cone sleeve 420; The bearing seat 20 is arranged on the head spindle 10; The front cone sleeve 410 and the rear cone sleeve 420 are both arranged in the cone sleeve groove 230; The front cone sleeve 410 and the front cone portion 210 cooperate with each other; The rear cone sleeve 420 and the rear cone portion 220 cooperate with each other; The tapers of the front cone sleeve 410 and the rear cone sleeve 420 are outward and the cone surfaces are opposite to each other; A plurality of vibration-damping components 50 are provided on the front cone portion 210 and the rear cone portion 220; The sealing chamber 3040 is defined by the cylinder body 60, the front cone sleeve 410, and the rear cone sleeve 420; The inflation port 3041 is used to supply air to the sealed cavity 3040 .

[0040] Principle and effect description: Air is supplied to the sealing chamber 3040 from the inflation port 3041; gradually increasing the air pressure of the compressed air can cause the front cone sleeve 410 and the rear cone sleeve 420 to gradually press the bearing seat 20 and the main shaft 10 of the machine head through the vibration-damping component 50, thereby achieving the purpose of increasing the rigidity of the machine head; gradually reducing the pressure of the compressed air can cause the front cone sleeve 410 and the rear cone sleeve 420 to gradually loosen the bearing seat 20 and the main shaft 10 of the machine head through the vibration-damping component 50, thereby achieving the purpose of gradually reducing the rigidity of the machine head.

[0041] The technical solution and technical effect of online, closed-loop adjustment of the head rigidity according to the head rotation speed are similar to those of the first preferred embodiment and are not elaborated herein.

[0042] On the other hand, in this embodiment, the taper of the front cone 210 and the rear cone 220 of the bearing seat 20 is set to be outward, and the taper of the front cone sleeve 410 and the rear cone sleeve 420 is set to be inward and the front and rear cone surfaces are opposite, which will cause the preload force on the bearing seat 20 to be concentrated at both ends of the bearing seat 20, which is beneficial to optimize the preload load distribution and meet the rigidity adjustment needs of different models (for example, suitable for use with extra-long axis machine heads).

[0043] In a variation of the present embodiment, the wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area further includes a front seat 310 and a rear seat 320 ; the front seat 310 and the rear seat 320 are respectively arranged on the front and rear sides of the cylinder changer 60 .

[0044] In this embodiment, the front end configuration (rotating cylinder, expansion sheet, upper wire ring, end cover, etc.) and rear end configuration (motor, coupling, motor seat, etc.) of the machine head as well as the lubricating oil circuit, front and rear bearings, rotation limiting components, and expansion sheet telescopic mechanism are similar to those of the first preferred embodiment and are not elaborated herein.

[0045] See also Figure 5 In the back-end disc pneumatic mechanism solution of this application, the wire drawing machine head includes: Head spindle 100; The bearing seat 200 is assembled on the head spindle 100; The fixing member 300 includes a cylinder body 3010 and a rear seat 3020, and the cylinder body 3010 and the rear seat 3020 are both arranged on the bearing seat 200; The movable part 400 includes a piston 4010, and the piston 4010 is assembled in the cylinder body 3010; A vibration-damping component 500 , disposed on the rear seat 3020 and / or the piston 4010 ; The sealed chamber 3400 is defined by the cylinder body 3010 and the piston 4010; The inflation port 3410 is connected to the sealed cavity 3400 and is used to supply air to the sealed cavity 3400 .

[0046] Principle and effect description: Air is supplied to the sealing chamber 3400 from the inflation port 3410; gradually increasing the air pressure of the compressed air can cause the piston 4010 to gradually press the rear seat 3020 through the vibration-damping component 500, thereby achieving the purpose of increasing the rigidity of the machine head; gradually reducing the pressure of the compressed air can cause the piston 4010 to gradually loosen the bearing seat 200 and the machine head spindle 100 through the vibration-damping component 500, thereby achieving the purpose of gradually reducing the rigidity of the machine head.

[0047] The technical solution and technical effect of online, closed-loop adjustment of the head rigidity according to the head rotation speed are similar to those of the first preferred embodiment and are not elaborated herein.

[0048] On the other hand, in this embodiment, a uniform vibration-damping component 500 is arranged on the circumference of the bearing seat 200, and the resonance range of the machine head is adjusted by inflating the rear disc clamping mechanism.

[0049] In a variation of the present embodiment, a vibration-damping component 500 is disposed on the bearing seat 200 , and the vibration-damping component 500 is located between the rear seat 3020 and the bearing seat 200 .

[0050] In a variation of this embodiment, the movable member 400 further includes a disk 4020; the disk 4020 includes a horizontal portion 4021 and a vertical portion 4022; the vertical portion 4022 is located between the rear seat 3020 and the piston 4010. The rear seat 3020 and the piston 4010 are both provided with a vibration reduction component 500 at locations corresponding to the vertical portion 4022.

[0051] In a variation of the present embodiment, the wire drawing machine head further includes a front seat 3100, which is disposed on the bearing seat 200, and a vibration-damping component 500 is disposed at a position on the bearing seat 200 corresponding to the front seat 3100; that is, a vibration-damping component 500 is also disposed between the front seat 3100 and the bearing seat 200.

[0052] In a variation of the present embodiment, the wire drawing machine head further includes a change barrel 600, which is provided with a bearing seat assembly hole, the bearing seat 200 is assembled in the bearing seat assembly hole, and the front seat 3100 and the rear seat 3020 are respectively arranged on both sides of the change barrel 600.

[0053] At the same time, in the embodiment where the vibration reduction component 500 is disposed between the piston 4010 and the rear seat 3020, between the front seat 3100 and the bearing seat 200, and between the rear seat 3020 and the bearing seat 200, the rigidity of the machine head can be adjusted in both the axial direction (through the vibration reduction component 500 disposed between the piston 4010 and the rear seat 3020) and the radial direction (the vibration reduction component 500 disposed between the front and rear seats and the bearing seat 200) by driving with compressed air. This is conducive to ensuring the rigidity adjustment effect of the machine head.

[0054] In this embodiment, the front end configuration (rotating cylinder, expansion sheet, upper wire ring, end cover, etc.) and rear end configuration (motor, coupling, motor seat, etc.) of the machine head as well as the lubricating oil circuit, front and rear bearings, rotation limiting components, and expansion sheet telescopic mechanism are similar to those of the first preferred embodiment and are not elaborated herein.

[0055] The following is a summary of the main points of the wire drawing machine head and its control method of the present application in combination with the above three specific implementation modes: The wire drawing machine head can be automatically adjusted online to avoid the wire drawing resonance area, including: Machine head spindle (1; 10; 100); Bearing seat (2; 20; 200); at least one fixing member (3; 30; 300); at least one movable member (4; 40; 400); at least one vibration-damping component (5; 50; 500); The bearing seat (2; 20; 200) is arranged on the machine head main shaft (1; 10; 100); The fixing part (3; 30; 300), the movable part (4; 40; 400), and the vibration reduction component (5; 50; 500) are all arranged on the bearing seat (2; 20; 200); The movable part (4; 40; 400) is movable on the bearing seat (2; 20; 200); A sealed cavity (34; 3040; 3400) is formed between the fixed part (3; 30; 300) and the movable part (4; 40; 400); The sealed cavity (34; 3040; 3400) is provided with an inflation port (341; 3041; 3410); By supplying compressed air from the inflation port (341; 3041; 3410) to the sealing chamber (34; 3040; 3400), the movable part (4; 40; 400) can be driven to press the vibration reduction component (5; 50; 500), thereby adjusting the rigidity of the machine head through the vibration reduction component (5; 50; 500).

[0056] The technical points of the closed-loop control method are: The head vibration detection step uses a vibration sensor to detect the head vibration data in real time; The rigid closed-loop adjustment step determines whether the vibration of the machine head is within a normal range (or an acceptable range) based on the detected vibration data of the machine head; if the vibration of the machine head exceeds the normal range (or an acceptable range), air is supplied to the sealing chamber (34; 3040; 3400) to drive the movable part (4; 40; 400) to extrude the vibration-reducing component (5; 50; 500) to adjust the rigidity of the machine head until the vibration of the machine head is within a normal range (or an acceptable range).

[0057] It should be noted that, in the aforementioned various embodiments, gas is used as the driving source. In some variant embodiments, liquid such as hydraulic oil may also be used as the driving source.

[0058] The technical scheme and technical effects of the present application are described in detail above in combination with the drawings and specific embodiments of the specification. It should be noted that technicians in this field can also develop other embodiments on this basis; any simple deformation and equivalent substitution that does not deviate from the innovative concept of the present application are covered by the present application and belong to the scope of protection of this patent.

Claims

1. A wire drawing machine head capable of automatically adjusting online to avoid a wire drawing resonance region, comprising a head spindle (1; 10; 100) and a bearing seat (2; 20; 200), characterized in that: Also includes: at least one fixing member (3; 30; 300); At least one movable part (4; 40； 400）； at least one vibration-damping component (5; 50; 500); The bearing seat (2; 20; 200) is arranged on the machine head main shaft (1; 10; 100); The fixing part (3; 30; 300), the movable part (4; 40; 400), and the vibration-damping part (5; 50; 500) are all arranged on the bearing seat (2; 20; 200); The movable part (4; 40; 400) is movable on the bearing seat (2; 20; 200); A sealed cavity (34; 3040; 3400) is formed between the fixed part (3; 30; 300) and the movable part (4; 40; 400); The sealed cavity (34; 3040; 3400) is provided with an inflation port (341; 3041; 3410); Compressed air is fed into the sealed cavity (34; 3040; 3400) from the inflation port (341; 3041; 3410), which can drive the movable part (4; 40; 400) to press the vibration-damping component (5; 50; 500) to adjust the rigidity of the machine head.

2. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 1, characterized in that: The fixing member (3) includes a front seat (31) and a rear seat (32); The movable member (4) includes a front cone sleeve (41) and a rear cone sleeve (42); The bearing seat (2) is provided with a front cone portion (21) and a rear cone portion (22); The front cone sleeve (41) and the front cone portion (21) cooperate with each other; The rear cone sleeve (42) and the rear cone portion (22) cooperate with each other; The front cone sleeve (41) and the rear cone sleeve (42) are tapered inwards and have opposite cone surfaces; The vibration-damping component (5) is provided on both the front cone (21) and the rear cone (22).

3. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 2, characterized in that: The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area also includes a barrel changer (6); The bearing seat (2) is arranged on the cylinder changing body (6), and the front seat (31) and the rear seat (32) are respectively located on the front and rear sides of the cylinder changing body (6).

4. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 2, characterized in that: The sealed cavity (34) comprises a front sealed cavity and a rear sealed cavity; The front sealing cavity is defined between the front seat (31) and the front cone sleeve (41), and the rear sealing cavity is defined between the rear seat (32) and the rear cone sleeve (42); The front sealed cavity is provided with a front inflation port, and the rear sealed cavity is provided with a rear inflation port.

5. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 1, characterized in that: The fixing member (30) includes a changing cylinder (60); The movable member (40) includes a front cone sleeve (410) and a rear cone sleeve (420); The bearing seat (20) is provided with a front cone portion (210), a rear cone portion (220), and a cone sleeve groove (230) located between the front cone portion (210) and the rear cone portion (220); The front cone sleeve (410) and the rear cone sleeve (420) are both arranged in the cone sleeve groove (230); The front cone sleeve (410) and the front cone portion (210) cooperate with each other; The rear cone sleeve (420) and the rear cone portion (220) cooperate with each other; The front cone sleeve (410) and the rear cone sleeve (420) are tapered outwards and have tapered surfaces facing each other; The vibration-damping component (50) is provided on both the front cone portion (210) and the rear cone portion (220).

6. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 5, characterized in that: The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area further comprises a front seat (310) and a rear seat (320); The front seat (310) and the rear seat (320) are respectively arranged on the front and rear sides of the cylinder changing body (60).

7. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 5, characterized in that: The sealing cavity (3040) is defined between the changing cylinder (60), the front cone sleeve (410), and the rear cone sleeve (420).

8. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 1, characterized in that: The fixing member (300) includes a cylinder (3010) and a rear seat (3020); The movable member (400) includes a piston (4010); The piston (4010) is assembled in the cylinder (3010), and the sealed chamber (3400) is defined between the piston (4010) and the cylinder (3010); The vibration-damping component (500) is arranged on the rear seat (3020) and / or the piston (4010).

9. The wire drawing machine head capable of online automatic adjustment to avoid the wire drawing resonance area according to claim 8, characterized in that: The movable member (400) further includes a disc (4020); The disc (4020) comprises a horizontal portion (4021) and a vertical portion (4022); The vertical portion (4022) is located between the rear seat (3020) and the piston (4010).

10. A control method for a wire drawing machine head capable of automatically adjusting online to avoid a wire drawing resonance region, characterized in that: Applicable to the wire drawing machine head according to claim 1; include: The head vibration detection step uses a vibration sensor to detect the head vibration data in real time; The rigid closed-loop adjustment step determines whether the vibration of the machine head is within a normal range based on the detected machine head vibration data; if the vibration of the machine head exceeds the normal range, air is supplied to the sealing chamber (34; 3040; 3400) to drive the movable part (4; 40; 400) to squeeze the vibration-damping component (5; 50; 500) to adjust the rigidity of the machine head until the vibration of the machine head is within the normal range.

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