Hollow shaft wire drawing machine head with novel modular structure

Abstract

The utility model belongs to the technical field of glass fiber production, and particularly relates to a novel hollow shaft wire drawing machine head of a modular structure. The device comprises a hollow main shaft, an air delivery pipe, a sectional type aluminum rotary drum, broken bridge type expansion pieces and expansion piece telescopic mechanisms. The hollow main shaft comprises a front-end winding shaft body and a rear-end assembling shaft body, a front-end cavity is formed in the front-end winding shaft body, and an in-shaft air path is arranged in the rear-end assembling shaft body; a pipe body gas path is arranged in the gas conveying pipe, the gas conveying pipe is arranged in the front end cavity, and the pipe body gas path is communicated to the in-shaft gas path; the sectional type aluminum rotary drum comprises a plurality of sections of aluminum rotary drum single bodies, and the aluminum rotary drum single bodies are fixedly assembled on the front end winding shaft body. The broken bridge type expansion sheets are movably clamped and embedded on the aluminum rotary drum single bodies; the expansion piece telescopic mechanisms are arranged at the two ends of the aluminum rotary drum single bodies so as to drive the broken bridge type expansion pieces to stretch out and draw back.

Description

Technical Field

[0001] This application belongs to the technical field of glass fiber production, and particularly relates to a hollow shaft wire drawing machine head with a new modular structure. Background Art

[0002] In the production of glass fiber wire drawing, there are usually two types of wire drawing machines, namely direct yarn wire drawing machines and cake yarn wire drawing machines. Their speeds vary, and the high-speed centrifugal force is very large. The head diameter of the direct yarn wire drawing machine is relatively small, and the expansion and contraction of the expanding piece are mainly driven by the tapered sleeves at both ends. Due to insufficient space, the thrust of the middle tapered sleeve is small and can only be used as an auxiliary expansion and contraction. The middle tapered sleeve must also be symmetrically arranged, occupying a large space. On the contrary, the head diameter of the cake yarn wire drawing machine is relatively large. Usually, the aluminum rotating cylinder is large and long. The front half is hollowed out, and the middle of the rear half is fixed with the main shaft taper. The extension of the head length is completed by the aluminum rotating cylinder to be the same length as the expanding piece. However, the processing of the long aluminum rotating cylinder and the expanding piece is difficult. Especially for the aluminum rotating cylinder, complex processes such as drilling deep holes, turning tapers, milling T-shaped grooves, and processing stress relief are easy to damage, and the workload is also very large. It is difficult to ensure the quality, especially causing trouble to users in terms of maintenance. The ultra-long and overweight aluminum rotating cylinder is very difficult to install and disassemble and has high requirements. At the same time, if the length of the expanding piece is large, the stiffness of the middle part will inevitably be affected. The existing expanding piece expansion and contraction mechanism is prone to soft waist due to insufficient jacking force. Summary of the Utility Model

[0003] In view of this, this application provides a hollow shaft wire drawing machine head with a new modular structure to solve all or part of the technical problems described in the background art of this application.

[0004] The solution provided by this application to solve its technical problems is as follows:

[0005] A hollow shaft wire drawing machine head with a new modular structure, characterized in that it includes a hollow main shaft, an air delivery pipe, a segmented aluminum rotating cylinder, a bridge-breaking expanding piece, an expanding piece expansion and contraction mechanism, an upper wire ring, and a spring seat; the hollow main shaft includes a front-end winding shaft body and a rear-end assembly shaft body. A front-end cavity is provided inside the front-end winding shaft body, and an internal shaft air passage is provided inside the rear-end assembly shaft body; a pipe body air passage is provided inside the air delivery pipe, and the air delivery pipe is arranged inside the front-end cavity, and the pipe body air passage communicates with the internal shaft air passage; the segmented aluminum rotating cylinder includes several aluminum rotating cylinder monomers, and the aluminum rotating cylinder monomers are fixedly assembled on the front-end winding shaft body; the upper wire ring is arranged at the front end of the front-end winding shaft body, and the spring seat is arranged at the rear end of the front-end winding shaft body; the bridge-breaking expanding piece is movably clamped on the aluminum rotating cylinder monomer; the expanding piece expansion and contraction mechanism is arranged at both ends of the aluminum rotating cylinder monomer to realize the expansion and contraction drive of the bridge-breaking expanding piece.

[0006] The expansion piece telescopic mechanism is arranged at both ends of the single aluminum rotating cylinder, that is, between the upper wire ring and the adjacent single aluminum rotating cylinder, between the spring seat and the adjacent single aluminum rotating cylinder, and an expansion piece telescopic mechanism assembly is arranged between every two adjacent single aluminum rotating cylinders.

[0007] Preferably, the expansion piece telescopic mechanism includes a piston ring, a ramp slider ring, a connecting rod slider, a connecting rod, a slider ring top spring, and a slider tension spring; both the piston ring and the ramp slider ring are arranged on the front end winding shaft body and are in contact and cooperation with each other, and the slider ring top spring abuts against one end of the ramp slider ring different from the piston ring; a plurality of ramp slider grooves are arranged on the ramp slider ring, a ramp mating portion is arranged on the connecting rod slider, and the connecting rod slider is movably assembled in the ramp slider groove; both ends of the connecting rod are respectively movably connected to the connecting rod slider and the single aluminum rotating cylinder; the slider tension spring is wound around the connecting rod slider to provide a radial tightening force for the connecting rod slider.

[0008] Preferably, the connecting rod includes a connecting rod portion and connecting rod heads arranged at both ends of the connecting rod portion; a cylinder upper rod head accommodating position is arranged on the single aluminum rotating cylinder, and a cylinder upper connecting rod moving port is arranged at the edge portion of the cylinder upper rod head accommodating position; a block upper rod head accommodating position is arranged on the connecting rod slider, and a block upper connecting rod moving port is arranged at the edge portion of the block upper rod head accommodating position; the connecting rod heads at both ends of the connecting rod are respectively movably assembled in the cylinder upper rod head accommodating position and the block upper rod head accommodating position. Further preferably, the connecting rod head is a spherical connecting rod head.

[0009] Preferably, a piston ring driving cavity is formed between the front end winding shaft body and the single aluminum rotating cylinder, the piston ring is assembled in the piston ring driving cavity, and the tube body air path is communicated to the piston ring driving cavity.

[0010] Preferably, a piston ring assembling position is arranged on the single aluminum rotating cylinder, and the piston ring driving cavity is defined between the front end winding shaft body and the piston ring assembling position; a fixed connection is established between the hollow main shaft and the air delivery pipe through a hollow screw, and the tube body air path is communicated to the piston ring driving cavity through the hollow screw.

[0011] Preferably, the number of the air delivery pipes is two; the two air delivery pipes are symmetrically arranged in the front end cavity.

[0012] Preferably, a slider tension spring groove is arranged on the connecting rod slider, and the slider tension spring is arranged in the slider tension spring groove.

[0013] Preferably, the head of the hollow shaft wire drawing machine with a new modular structure further includes a head front end cover and a head rear end cover; the head front end cover is fixedly assembled on the upper wire ring, and a fixed connection is established between the head rear end cover and the spring seat.

[0014] Preferably, the segmented aluminum rotating cylinder includes at least two single aluminum rotating cylinders, and an expansion piece telescopic mechanism is arranged between every two adjacent single aluminum rotating cylinders and on the outer sides of the single aluminum rotating cylinders at both ends.

[0015] Preferably, the broken bridge expansion sheet is provided with a broken bridge slot and a spring slot; a spring slot is provided in the spring slot; a spring extension mechanism is provided at the corresponding position of the broken bridge slot. Further preferably, the spring slot is provided at both ends of the broken bridge expansion sheet, and the broken bridge slot is provided between the spring slots at both ends.

[0016] Preferably, the movable snap-in connection between the thermal-bridge expansion sheet and the aluminum rotating drum unit is as follows: a snap-in position is provided on the segmented aluminum rotating drum, and the connecting part of the thermal-bridge expansion sheet has a structure that matches the snap-in position; when the thermal-bridge expansion sheet is movably snap-in in the snap-in position, this movable snap-in connection can prevent the thermal-bridge expansion sheet from falling off in the radial direction of the segmented aluminum rotating drum.

[0017] Preferably, the connecting rod slider is arranged at a position corresponding to the expansion piece broken bridge groove; or in other words, the supporting position of the connecting rod slider against the broken bridge type expansion piece is basically aligned with the expansion piece broken bridge groove.

[0018] Preferably, the head of the hollow shaft wire drawing machine with a new modular structure also includes a front bearing and bearing seat, an oil injection ring, a motor, a motor seat, a rear bearing and bearing seat, a dustproof deep palace, and a rotary joint; the rear end assembly shaft is transmission-connected to the motor, the front bearing and bearing seat, and the oil injection ring are arranged at the front end of the motor, the rear bearing and bearing seat, and the dustproof deep palace are arranged at the rear end of the motor, and the rotary joint is fixedly assembled at the end of the rear end assembly shaft; an oil mist channel is arranged in the front bearing and the bearing seat, and the oil mist channel is connected to the oil injection ring; the head of the hollow shaft wire drawing machine with a new modular structure also includes a barrel changing mechanism, and the barrel changing mechanism includes a barrel changing turntable and a barrel changing bearing.

[0019] Beneficial technical effects:

[0020] 1. The new modular structure of the hollow shaft wire drawing machine head provided in this application adopts a segmented aluminum drum structure and a multi-point arrangement of the sheet expansion and retracting mechanism. The sheet expansion can be lightweight, with low centrifugal force and simple processing and installation. The remaining parts mounted on the main shaft can all be hot-extruded and assembled in modular production, and can be freely spliced ​​like building blocks for multi-part drawing. This method can not only increase the main shaft diameter to increase rigidity, but also increase the piston cavity of the sheet expansion and retracting mechanism to increase the sheet expansion and retracting thrust. It solves the technical problem that the thrust of the cone sleeve is insufficient due to the limitation of the cavity, making the sheet expansion waist soft and unable to truly realize the drawing of ultra-long multi-part drawing heads.

[0021] 2. The expansion and retraction mechanism composed of piston ring, ramp slider ring, connecting rod slider, connecting rod, slider ring top spring and slider tension spring is adopted. When the connecting rod slider is driven, it can respond quickly, which is beneficial to reduce the system reaction time and improve the control accuracy and efficiency. At the same time, the normal limiting force and radial supporting force of the connecting rod can ensure the efficiency of expansion and retraction of the sheet and improve the stability of the expansion and retraction action.

[0022] 3. Adopt a bridge-breaking type expanding piece in cooperation with an independently developed expanding piece telescopic mechanism, which allows for the lightweight development of the expanding piece, is conducive to reducing the processing, installation, and maintenance difficulties of the expanding piece as well as the centrifugal force during operation, reducing the power consumption of the wire drawing machine, and improving the control accuracy of the expanding piece telescopic movement.

[0023] The following combines the description of the drawings and specific implementation manners to introduce the technical solutions and technical effects of this application in detail. Description of the Drawings

[0024] Figure 1 : Front-end cross-sectional view of the head of a hollow spindle wire drawing machine with a new modular structure;

[0025] Figure 2 : Rear-end cross-sectional view of the head of a hollow spindle wire drawing machine with a new modular structure;

[0026] Figure 3 : Schematic diagram of the assembly relationship between the hollow main shaft and the air delivery pipe;

[0027] Figure 4 : Schematic diagram of the assembly relationship between the bridge-breaking type expanding piece and the segmented aluminum rotating cylinder;

[0028] Figure 5 : Figure 1 Enlarged view of the structure at part A in

[0029] Figure 6 : Cross-sectional view of the assembly relationship between the connecting rod slider and the ramp slider ring;

[0030] Figure 7 : Side view of the assembly relationship between the connecting rod slider and the ramp slider ring;

[0031] Legend:

[0032] 10 - Hollow main shaft, 20 - Air delivery pipe, 30 - Segmented aluminum rotating cylinder, 40 - Bridge-breaking type expanding piece, 50 - Expanding piece telescopic mechanism, 60 - Hollow screw, 70 - Wire threading ring, 80 - Front-end head cover, 90 - Spring seat, 100 - Rear-end head cover;

[0033] 110 - Front-end winding shaft body, 120 - Rear-end assembly shaft body, 1110 - Front-end cavity, 1210 - Air path inside the shaft;

[0034] 210 - Air path of the pipe body;

[0035] 310 - Aluminum rotating cylinder monomer;

[0036] 3110 - Accommodating position for the rod head on the cylinder, 3120 - Moving port for the connecting rod on the cylinder, 3130 - Piston ring assembly position, 3140 - Top spring seat hole, 3150 - Clamping position;

[0037] 410 - Expanding piece bridge-breaking groove, 420 - Expanding piece tension spring groove, 430 - Expanding piece tension spring;

[0038] 510 - Piston ring, 520 - Ramp slider ring, 530 - Connecting rod slider, 540 - Connecting rod, 550 - Slider ring top spring, 560 - Slider tension spring, 570 - Piston ring drive cavity;

[0039] 5210 - Ramp slider groove, 5220 - Top spring socket;

[0040] 5310 - Block upper rod head accommodation position, 5320 - Block upper connecting rod movable port, 5330 - Tension spring groove, 5340 - Ramp mating part;

[0041] 5410 - Connecting rod part, 5420 - Connecting rod head;

[0042] 1 - Front bearing and bearing seat, 2 - Oil injection ring, 3 - Motor, 4 - Motor seat, 5 - Rear bearing and bearing seat, 6 - Dust-proof deep cavity, 7 - Rotary joint, 8 - Oil mist passage, 9 - Bobbin changing mechanism;

[0043] 91 - Bobbin changing turntable, 92 - Bobbin changing bearing. Detailed implementation mode

[0044] Direction description: Please refer to Figure 1 and Figure 2 , Figure 1 and Figure 2 are spliced along the omitted arc to form a complete machine head. In this application, the front direction refers to the end of the machine head away from the motor seat, and the direction opposite to the front is the rear direction. Correspondingly, the front end of a component or assembly refers to the end farther from the motor seat, and the rear end of a component or assembly refers to the end closer to the motor seat.

[0045] Please refer to Figure 1 - Figure 7 , The machine head of the new modular structure hollow shaft wire drawing machine includes a hollow main shaft 10, an air delivery pipe 20, a segmented aluminum bobbin 30, a bridge-type expanding piece 40, an expanding piece telescoping mechanism 50, a wire threading ring 70, and a spring seat 90.

[0046] The hollow main shaft 10 includes a front end winding shaft body 110 and a rear end assembly shaft body 120. A front end cavity 1110 is arranged inside the front end winding shaft body 110, and an in-shaft air passage 1210 is arranged inside the rear end assembly shaft body 120.

[0047] A pipe body air passage 210 is arranged inside the air delivery pipe 20. The air delivery pipe 20 is fixedly assembled inside the front end cavity 1110, and the pipe body air passage 210 communicates with the in-shaft air passage 1210 inside the hollow main shaft 20. A fixed connection is established between the hollow main shaft 10 and the air delivery pipe 20 through a hollow screw 60.

[0048] The segmented aluminum rotating cylinder 30 includes several aluminum rotating cylinder monomers 310, and the aluminum rotating cylinder monomers 310 are fixedly assembled on the front end winding shaft body 110; the wire threading ring 70 is arranged at the front end of the front end winding shaft body 110, and the spring seat 90 is arranged at the rear end of the front end winding shaft body 110; the bridge-cut expanding piece 40 is movably clamped on the aluminum rotating cylinder monomer 310.

[0049] By adopting the segmented aluminum rotating cylinder monomers 310, modular assembly of the wire drawing machine head can be realized. The number of the aluminum rotating cylinder monomers 310 can be flexibly configured according to actual needs. In this embodiment, four aluminum rotating cylinder monomers 310 are arranged on the machine head, and a four-way drawing head can be formed.

[0050] Between every two adjacent aluminum rotating cylinder monomers 310, between the wire threading ring 70 and the adjacent aluminum rotating cylinder monomer 310, and between the spring seat 90 and the adjacent aluminum rotating cylinder monomer 310, telescopic mechanism assembly positions are provided, and a expanding piece telescopic mechanism 50 is arranged in the telescopic mechanism assembly positions.

[0051] Due to the adoption of the structure of the segmented aluminum rotating cylinder monomers 310, multiple expanding piece telescopic mechanisms 50 can be arranged between the aluminum rotating cylinder monomers 310. Thus, even for an extremely long head and extremely long expanding pieces of ultra-high multiple drawing, the automatic expansion and contraction of the expanding pieces can be realized by controlling the conduction of compressed air. Due to the multiple expanding piece telescopic mechanisms 50 arranged on the machine head, multiple points of holding force and tightening force can be formed in the length direction of the expanding piece, and thus the soft waist phenomenon that often appears in the long expanding pieces on the machine head can be avoided. Furthermore, lightweight design of the expanding piece can be realized, and the lightweight development of the expanding piece is beneficial to reducing the centrifugal force of the expanding piece and the overall load of the wire drawing machine, reducing energy consumption, and improving control accuracy.

[0052] The wire drawing machine head with the novel modular structure further includes a front end cover 80 and a rear end cover 100 of the machine head; the front end cover 80 of the machine head is fixedly assembled on the wire threading ring 70, and a fixed connection is provided between the rear end cover 100 of the machine head and the spring seat 90.

[0053] The bridge-cut expanding piece 40 is provided with an expanding piece bridge-cut groove 410 and an expanding piece spring groove 420; an expanding piece spring 430 is arranged in the expanding piece spring groove 420. The expanding piece spring 430 is used to provide a radial tightening force after the bridge-cut expanding piece 40 is expanded to complete the automatic contraction of the bridge-cut expanding piece 40. The expanding piece bridge-cut groove 410 is used to solve the bending problem of the ultra-long expanding piece.

[0054] The aluminum drum unit 310 is provided with a clamping position 3150, and the connecting part of the broken-bridge expanding piece 40 has a structure that fits with the clamping position 3150. When the broken-bridge expanding piece 40 is movably clamped in the clamping position 3150, this movable clamping connection can prevent the broken-bridge expanding piece 40 from falling off radially from the segmented aluminum drum 30. For the movable clamping connection between the aluminum drum and the expanding piece, please refer to the Chinese patent: A middle cone sleeve supporting device for the head expanding piece (publication number: CN213803526U).

[0055] The expanding piece telescoping mechanism 50 includes a piston ring 510, a ramp slider ring 520, a connecting rod slider 530, a connecting rod 540, a slider ring top spring 550, and a slider pull spring 560.

[0056] The aluminum drum unit 310 is provided with a piston ring assembly position 3130, and a piston ring driving cavity 570 is defined between the front end winding shaft body 110 and the piston ring assembly position 3130. The pipe body gas path 210 is connected to the piston ring driving cavity 570 through a hollow screw 60.

[0057] The piston ring 510 is assembled in the piston ring driving cavity 570.

[0058] The ramp slider ring 520 is arranged on the front end winding shaft body 110 and is in mutual contact and cooperation with the piston ring 510.

[0059] The ramp slider ring 520 is provided with a plurality of ramp slider grooves 5210, the connecting rod slider 530 is provided with a ramp mating part 5340, and the connecting rod slider 530 is movably assembled in the ramp slider grooves 5210; the ramp mating part 5340 and the ramp groove bottom of the ramp slider grooves 5210 are mutually mated to form a sliding connection.

[0060] The two ends of the connecting rod 540 are respectively movably connected to the connecting rod slider 530 and the aluminum drum unit 310.

[0061] The movable connections between the connecting rod 540, the connecting rod slider 530, and the aluminum drum unit 310 are as follows: The connecting rod 540 includes a connecting rod portion 5410 and connecting rod heads 5420 arranged at both ends of the connecting rod portion 5410; the aluminum drum unit 310 is provided with a barrel upper rod head accommodation position 3110, and a barrel upper connecting rod movable port 3120 is arranged at the edge part of the barrel upper rod head accommodation position 3110; the connecting rod slider 530 is provided with a block upper rod head accommodation position 5310, and a block upper connecting rod movable port 5320 is arranged at the edge part of the block upper rod head accommodation position 5310; the connecting rod heads 5420 at both ends of the connecting rod 540 are respectively movably assembled in the barrel upper rod head accommodation position 3110 and the block upper rod head accommodation position 5310. Among them, the connecting rod head 5420 is a spherical connecting rod head.

[0062] The aluminum rotating cylinder unit 310, the upper wire ring 70, and the spring seat 90 are all provided with top spring seat holes 3140. The ramp slider ring 520 is provided with a top spring insertion hole 5220. One end of the slider ring top spring 550 is arranged in the top spring seat hole 3140, and the other end is arranged in the top spring insertion hole 5220. Thus, one end of the slider ring top spring 550 abuts against the side of the ramp slider ring 520 different from the piston ring 510.

[0063] The connecting rod slider 530 is provided with a slider tension spring groove 5330. The slider tension spring 560 is arranged in the slider tension spring groove 5330. The slider tension spring 560 surrounds the connecting rod slider 530 to provide a radial tightening force for the connecting rod slider 530. The connecting rod slider 530 is arranged at a position corresponding to the fin breaking groove 410 on the broken bridge type fin 40.

[0064] The realization mechanism of the fin expansion and contraction mechanism:

[0065] When compressed air is turned on, the piston ring 510 pushes the ramp slider ring 520 to move forward, compressing the slider ring top spring 550; at the same time, after the connecting rod slider 530 loses the supporting action of the ramp slider ring 520, it slides down along the ramp slider groove 5210 under the action of the slider tension spring 560. After the broken bridge type fin 40 loses the supporting action of the connecting rod slider 530, it radially contracts under the action of the fin tension spring 430.

[0066] When the compressed air is turned off, the ramp slider ring 520 pushes the piston ring 510 into the piston ring cavity 570 under the action of the slider ring top spring 550; at the same time, the connecting rod slider 530 slides up along the ramp slider groove 5210, and the broken bridge type fin 40 unfolds under the supporting action of the connecting rod slider 530.

[0067] When the connecting rod slider 530 slides up or down along the ramp slider groove 5210, the connecting rod 540 and the ramp slider groove 5210 limit the up and down sliding range of the connecting rod slider 530 within a fixed range, so that when receiving the up sliding driving force or the down sliding driving force, the connecting rod slider 530 can quickly make an effective response, reduce the ineffective up sliding or ineffective down sliding stroke, reduce the system response time, and improve the control accuracy and efficiency.

[0068] At the same time, when lifting the fin, the connecting rod 540 can also provide a normal limiting force (parallel to the direction of the hollow main shaft 10) for the connecting rod slider 530 to prevent the connecting rod slider 530 from generating displacement on the fin along the direction parallel to the hollow main shaft 10 when being pushed by the ramp slider groove 5210, further ensuring the efficiency of fin extension. And, during the process of lifting the fin, the connecting rod 540 can also provide a radial supporting force for the connecting rod slider 530. A part of the reaction force from the fin is borne by the connecting rod 540, so as to balance the force on the ramp slider ring 520 and improve the stability of the fin extension action.

[0069] On a wire drawing machine with a multi-branch ultra-long head, as the length of the sheet increases, the middle part of the sheet will inevitably bend (soft waist). The cone sleeve set in the middle of the sheet on the existing wire drawing machine cannot solve the soft waist problem due to insufficient thrust, thus limiting the length development of the head. The present application adopts a self-developed new sheet expansion and retracting mechanism to cooperate with the operation of the long head, which not only solves the soft waist problem that is prone to occur in longer sheets, but also reduces the system response time, improves control accuracy and control efficiency, and increases the stability of the sheet expansion and retracting movement. At the same time, since a plurality of sheet expansion broken bridge grooves 410 are provided on the broken bridge type sheet expansion 40, the bending deformation points of the longer sheet during operation will be concentrated in the sheet expansion broken bridge groove 410, and a sheet expansion retracting mechanism 50 is provided corresponding to each sheet expansion broken bridge groove 410. Therefore, even if the sheet is ultra-long and lightweight and easy to deform, there will be no soft waist phenomenon during operation. Therefore, the new modular structure of the hollow shaft wire drawing machine head disclosed in the present application also allows for the lightweight development of the expansion sheet, so as to reduce the difficulty of processing and installation of the expansion sheet and the centrifugal force during operation, reduce the power consumption of the wire drawing machine, and improve the control accuracy of the expansion sheet extension.

[0070] In a modified embodiment of the present application, the head of the hollow shaft wire drawing machine with a new modular structure also includes a front bearing and a bearing seat 1, an oil spray ring 2, a motor 3, a motor seat 4, a rear bearing and a bearing seat 5, a dustproof deep palace 6, and a rotary joint 7. The rear end assembly shaft 120 is transmission-connected to the motor 3, the front bearing and the bearing seat 1, the oil spray ring 2 are arranged at the front end of the motor 3, the rear bearing and the bearing seat 5, and the dustproof deep palace 6 are arranged at the rear end of the motor 3, and the rotary joint 7 is fixedly assembled at the rear end end of the rear end assembly shaft 120; an oil mist channel 8 is arranged in the front bearing and the bearing seat 1, and the oil mist channel 8 is connected to the oil spray ring 2. The head of the hollow shaft wire drawing machine with a new modular structure also includes a barrel changing mechanism 9, and the barrel changing mechanism 9 includes a barrel changing turntable 91 and a barrel changing bearing 92. The barrel changing turntable 91 is used to drive the head to complete the barrel changing and flipping, and the barrel changing bearing 92 is used to support the rotation of the barrel changing turntable 91.

[0071] 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 hollow shaft wire drawing machine head with a novel modular structure, characterized in that: It includes a hollow main shaft (10), an air delivery pipe (20), a segmented aluminum rotating cylinder (30), a broken bridge expanding piece (40), an expanding piece telescopic mechanism (50), a wire threading ring (70), and a spring seat (90); The hollow main shaft (10) includes a front end winding shaft body (110) and a rear end assembly shaft body (120). A front end cavity (1110) is arranged inside the front end winding shaft body (110), and an internal shaft air passage (1210) is arranged inside the rear end assembly shaft body (120); A pipe body air passage (210) is arranged inside the air delivery pipe (20). The air delivery pipe (20) is arranged inside the front end cavity (1110), and the pipe body air passage (210) communicates with the internal shaft air passage (1210); The segmented aluminum rotating cylinder (30) includes several aluminum rotating cylinder monomers (310), and the aluminum rotating cylinder monomers (310) are fixedly assembled on the front end winding shaft body (110); The wire threading ring (70) is arranged at the front end of the front end winding shaft body (110), and the spring seat (90) is arranged at the rear end of the front end winding shaft body (110); The broken bridge expanding piece (40) is movably clamped on the aluminum rotating cylinder monomer (310); The expanding piece telescopic mechanism (50) is arranged at both ends of the aluminum rotating cylinder monomer (310) to realize the telescopic drive of the broken bridge expanding piece (40).

2. The hollow shaft wire drawing machine head with a novel modular structure according to claim 1, characterized in that: The expanding piece telescopic mechanism (50) includes a piston ring (510), a ramp slider ring (520), a connecting rod slider (530), a connecting rod (540), a slider ring top spring (550), and a slider pulling spring (560); The piston ring (510) and the ramp slider ring (520) are both arranged on the front end winding shaft body (110) and are in contact and cooperation with each other. The slider ring top spring (550) abuts against one end of the ramp slider ring (520) different from the piston ring (510); A plurality of ramp slider grooves (5210) are arranged on the ramp slider ring (520), and a ramp matching part (5340) is arranged on the connecting rod slider (530). The connecting rod slider (530) is movably assembled in the ramp slider grooves (5210); Both ends of the connecting rod (540) are respectively movably connected to the connecting rod slider (530) and the aluminum rotating cylinder monomer (310); The slider pulling spring (560) is wound around the connecting rod slider (530) to provide a radial tightening force for the connecting rod slider (530).

3. The hollow shaft wire drawing machine head with a novel modular structure according to claim 2, characterized in that: The connecting rod (540) includes a connecting rod part (5410) and connecting rod heads (5420) arranged at both ends of the connecting rod part (5410); A rod head accommodation position on the cylinder (3110) is arranged on the aluminum rotating cylinder monomer (310), and a connecting rod movable opening on the cylinder (3120) is arranged at the edge part of the rod head accommodation position on the cylinder (3110); A block upper rod head accommodation position (5310) is provided on the connecting rod slider (530), and a block upper connecting rod movable opening (5320) is provided at the edge of the block upper rod head accommodation position (5310); The connecting rod heads (5420) at both ends of the connecting rod (540) are respectively movably assembled in the cylinder upper rod head accommodation position (3110) and the block upper rod head accommodation position (5310).

4. The hollow shaft wire drawing machine head with a novel modular structure according to claim 2, characterized in that: A piston ring driving cavity (570) is formed between the front end winding shaft body (110) and the aluminum drum monomer (310), the piston ring (510) is arranged in the piston ring driving cavity (570), and the pipe body gas path (210) is communicated with the piston ring driving cavity (570).

5. The hollow shaft wire drawing machine head with a novel modular structure according to claim 4, characterized in that: A piston ring assembly position (3130) is provided on the aluminum drum monomer (310), and the front end winding shaft body (110) and the piston ring assembly position (3130) define the piston ring driving cavity (570); A fixed connection is established between the hollow main shaft (10) and the air delivery pipe (20) through a hollow screw (60), and the pipe body gas path (210) is communicated with the piston ring driving cavity (570) through the hollow screw (60).

6. The hollow shaft wire drawing machine head with a novel modular structure according to claim 2, characterized in that: A slider tension spring groove (5330) is provided on the connecting rod slider (530), and the slider tension spring (560) is arranged in the slider tension spring groove (5330).

7. The hollow shaft wire drawing machine head with a novel modular structure according to claim 1, characterized in that: The hollow shaft wire drawing machine head with a novel modular structure further includes a machine head front end cover (80) and a machine head rear end cover (100); The machine head front end cover (80) is fixedly assembled on the wire feeding ring (70), and a fixed connection is established between the machine head rear end cover (100) and the spring seat (90).

8. The hollow shaft wire drawing machine head with a novel modular structure according to claim 1, characterized in that: The segmented aluminum drum (30) includes at least two aluminum drum monomers (310), and a sheet expanding and contracting mechanism (50) is arranged between every two adjacent aluminum drum monomers (310).

9. The hollow shaft wire drawing machine head with a novel modular structure according to claim 1, characterized in that: A sheet expanding bridge groove (410) and a sheet expanding spring groove (420) are provided on the broken bridge type sheet (40); A sheet expanding spring (430) is arranged in the sheet expanding spring groove (420); The sheet expanding and contracting mechanism (50) is arranged at the corresponding position of the sheet expanding bridge groove (410).

10. The hollow shaft wire drawing machine head with a novel modular structure according to claim 1, characterized in that: The head of the hollow shaft wire drawing machine with the novel modular structure further includes a front bearing and bearing seat (1), an oil injection ring (2), a motor (3), a motor seat (4), a rear bearing and bearing seat (5), a dust-proof deep cavity (6), and a rotary joint (7); The rear end assembly shaft body (120) is drivingly connected to the motor (3), the front bearing and bearing seat (1) and the oil injection ring (2) are arranged at the front end of the motor (3), the rear bearing and bearing seat (5) and the dust-proof deep cavity (6) are arranged at the rear end of the motor (3), and the rotary joint (7) is fixedly assembled at the end of the rear end assembly shaft body (120); An oil mist passage (8) is arranged in the front bearing and bearing seat (1), and the oil mist passage (8) communicates with the oil injection ring (2); The head of the hollow shaft wire drawing machine with the novel modular structure further includes a bobbin changing mechanism (9), and the bobbin changing mechanism (9) includes a bobbin changing turntable (91) and a bobbin changing bearing (92).

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