Hollow shaft wire drawing machine head with novel modular structure

Abstract

The invention 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] The present application belongs to the technical field of glass fiber production, and specifically relates to a hollow shaft wire drawing machine head with a novel modular structure. Background Art

[0002] In the production of glass fiber drawing, there are usually two types of drawing machines, namely direct yarn drawing machines and cake yarn drawing machines. Their speeds are high and low, and the centrifugal force at high speed is very large. The head diameter of the direct yarn drawing machine is small, and the expansion and contraction of the sheet is mainly controlled by the cone sleeves at both ends. The middle cone sleeve has a small thrust due to insufficient space and can only be used as an auxiliary expansion and contraction. The middle cone sleeve must also be arranged symmetrically and occupies a large space. On the contrary, the head diameter of the cake yarn drawing machine is large, usually a large and long aluminum drum, the front half is hollowed out, leaving the middle of the back half to match the spindle taper and fix it. The head length extension is completed by the aluminum drum to be the same length as the expansion sheet, but the longer aluminum drum and expansion sheet are difficult to process, especially the aluminum drum, which requires complex processes such as drilling deep holes, turning tapers, milling T-slots, and processing stress relief. It is easy to be damaged and the workload is also large, but it is difficult to guarantee the quality, especially causing troubles for users in terms of maintenance. The overlong and overweight aluminum drum is difficult to assemble and disassemble and has high requirements. At the same time, if the length of the expansion piece is too long, the rigidity of the middle part will inevitably be affected, and the existing expansion piece telescopic mechanism is prone to cause a soft waist due to insufficient holding force. Summary of the invention

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

[0004] The solutions provided by this application to solve its technical problems are: A new type of modular hollow shaft wire drawing machine head, characterized in that it includes a hollow main shaft, an air supply pipe, a segmented aluminum drum, a broken bridge type sheet expansion, a sheet expansion telescopic 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, the front end winding shaft body is provided with a front end cavity, and the rear end assembly shaft body is provided with an inner shaft air path; a tube body air path is provided in the air supply pipe, the air supply pipe is provided in the front end cavity, and the tube body air path is connected to the inner shaft air path; the segmented aluminum drum includes several sections of aluminum drum monomers, and the aluminum drum monomers are fixedly assembled on the front end winding shaft body; the upper wire ring is provided at the front end of the front end winding shaft body, and the spring seat is provided at the rear end of the front end winding shaft body; the broken bridge type sheet expansion movable card is embedded in the aluminum drum monomer; the sheet expansion telescopic mechanism is provided at both ends of the aluminum drum monomer to realize the telescopic drive of the broken bridge type sheet expansion.

[0005] The expansion and retraction mechanism is arranged at both ends of the aluminum drum monomer, namely: between the upper wire ring and the adjacent aluminum drum monomer, between the spring seat and the adjacent aluminum drum monomer, and between every two adjacent aluminum drum monomers.

[0006] Preferably, the expansion and retraction 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; the piston ring and the ramp slider ring are both arranged on the front end winding shaft and contact and cooperate with each other, and the slider ring top spring rests on the ramp slider ring at an end different from the piston ring; the ramp slider ring is provided with a plurality of ramp slider grooves, and the connecting rod slider is provided with a ramp matching portion, and the connecting rod slider is movably assembled in the ramp slider groove; the two ends of the connecting rod are respectively movably connected to the connecting rod slider and the aluminum drum unit; the slider tension spring is wrapped around the connecting rod slider to provide radial tightening force for the connecting rod slider.

[0007] 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 accommodation position is arranged on the aluminum rotating cylinder body, and a cylinder upper connecting rod movable opening is arranged at the edge of the cylinder upper rod head accommodation position; a block upper rod head accommodation position is arranged on the connecting rod slider, and a block upper connecting rod movable opening is arranged at the edge of the block upper rod head accommodation position; the connecting rod heads at both ends of the connecting rod are movably assembled in the cylinder upper rod head accommodation position and the block upper rod head accommodation position, respectively. Further preferably, the connecting rod head is a spherical connecting rod head.

[0008] Preferably, a piston ring driving cavity is formed between the front end winding shaft body and the aluminum drum body, the piston ring is assembled in the piston ring driving cavity, and the tube body air path is connected to the piston ring air cavity.

[0009] Preferably, a piston ring assembly position is provided on the aluminum drum unit, and a piston ring drive cavity is defined between the front winding shaft and the piston ring assembly position; a fixed connection is established between the hollow main shaft and the air pipe by means of hollow screws, and the air path of the pipe body is connected to the piston ring air cavity by means of hollow screws.

[0010] Preferably, there are two air pipes; the two air pipes are symmetrically arranged in the front end cavity.

[0011] Preferably, a slider spring groove is provided on the connecting rod slider, and the slider spring is arranged in the slider spring groove.

[0012] Preferably, the head of the hollow shaft wire drawing machine with a novel modular structure also includes a front end cover of the head and a rear end cover of the head; the front end cover of the head is fixedly assembled on the wire ring, and the rear end cover of the head is fixedly connected to the spring seat.

[0013] Preferably, the segmented aluminum drum comprises at least two sections of aluminum drum monomers, and a sheet expansion and retracting mechanism is provided between every two adjacent sections of the aluminum drum monomers and on the outsides of the aluminum drum monomers at both ends.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] Beneficial technical effects: 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.

[0019] 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.

[0020] 3. The use of the broken bridge expansion sheet combined with the independently developed expansion sheet telescopic mechanism allows the expansion sheet to be lightweight, which is beneficial to reduce the difficulty of processing, installation and maintenance of the expansion sheet and the centrifugal force during operation, reduce the power consumption of the wire drawing machine, and improve the expansion sheet telescopic control accuracy.

[0021] 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

[0022] Figure 1 : The front section of the hollow shaft wire drawing machine head with a new modular structure; Figure 2 : A cross-sectional view of the rear end of the hollow shaft wire drawing machine head with a new modular structure; Figure 3 : Schematic diagram of the assembly relationship between the hollow main shaft and the gas pipe; Figure 4 : Schematic diagram of the assembly relationship between the broken bridge expansion plate and the segmented aluminum drum; Figure 5 : Figure 1 A magnified view of the structure of part A in the middle; Figure 6 : Cross-sectional view of the assembly relationship between the connecting rod slider and the ramp slider ring; Figure 7 : Side view of the assembly relationship between the connecting rod slider and the ramp slider ring; Icon Description: 10-hollow main shaft, 20-air pipe, 30-segmented aluminum drum, 40-broken bridge expansion plate, 50-expansion plate expansion mechanism, 60-hollow screw, 70-upper wire ring, 80-machine head front cover, 90-spring seat, 100-machine head rear cover; 110- front end winding shaft body, 120- rear end assembly shaft body, 1110- front end cavity, 1210- air path in the shaft; 210-tube gas path; 310-aluminum drum monomer; 3110- rod head accommodation position on the cylinder, 3120- connecting rod movable opening on the cylinder, 3130- piston ring assembly position, 3140- top spring seat hole, 3150- card insertion position; 410- expansion piece bridge slot, 420- expansion piece tension spring slot, 430- expansion piece tension spring; 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 chamber; 5210-slope slider slot, 5220-top spring socket; 5310-upper rod head receiving position, 5320-upper connecting rod movable opening, 5330-tension spring groove, 5340-slope matching part; 5410-connecting rod, 5420-connecting rod head; 1-front bearing and bearing seat, 2-oil injection ring, 3-motor, 4-motor seat, 5-rear bearing and bearing seat, 6-dustproof deep palace, 7-rotating joint, 8-oil mist channel, 9-drum changing mechanism; 91-drum changing turntable, 92-drum changing bearing. DETAILED DESCRIPTION

[0023] Directions: Please refer to Figure 1 and Figure 2 , Figure 1 and Figure 2 The complete machine head is formed by splicing along the omitted arc. The front direction in this application 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.

[0024] See also Figure 1-Figure 7 The head of the hollow shaft wire drawing machine with a new modular structure includes a hollow main shaft 10, an air pipe 20, a segmented aluminum rotating drum 30, a broken bridge expansion sheet 40, an expansion sheet telescopic mechanism 50, an upper wire ring 70, and a spring seat 90.

[0025] The hollow main shaft 10 includes a front winding shaft body 110 and a rear assembly shaft body 120 . A front cavity 1110 is arranged inside the front winding shaft body 110 , and an intra-shaft air path 1210 is arranged inside the rear assembly shaft body 120 .

[0026] The air pipe 20 is provided with a tube gas path 210, which is fixedly assembled in the front cavity 1110, and the tube gas path 210 is connected to the shaft gas path 1210 in the hollow main shaft 20. The hollow main shaft 10 and the air pipe 20 are fixedly connected by a hollow screw 60.

[0027] The segmented aluminum drum 30 includes several sections of aluminum drum monomers 310, which are fixedly assembled on the front winding shaft body 110; the upper wire ring 70 is arranged at the front end of the front winding shaft body 110, and the spring seat 90 is arranged at the rear end of the front winding shaft body 110; the broken bridge expansion piece 40 is movably embedded in the aluminum drum monomer 310.

[0028] By adopting the segmented aluminum drum monomer 310, the modular assembly of the wire drawing machine head can be achieved. The number of aluminum drum monomers 310 can be flexibly configured according to actual needs. In this embodiment, the head is provided with four segments of aluminum drum monomers 310, which can form a four-part drawing head.

[0029] A telescopic mechanism assembly position is provided between every two adjacent aluminum drum monomers 310, between the upper wire ring 70 and the adjacent aluminum drum monomer 310, and between the spring seat 90 and the adjacent aluminum drum monomer 310, and a sheet expansion telescopic mechanism 50 is provided in the telescopic mechanism assembly position.

[0030] Due to the adoption of the segmented assembled aluminum drum monomer 310 structure, multiple sheet expansion and retraction mechanisms 50 can be set between the aluminum drum monomers 310, so that even if there are super long heads and super long expansion sheets with super multiple pulls, the automatic expansion and retraction of the expansion sheets can be achieved by controlling the conduction of compressed air. Since the multi-point sheet expansion and retraction mechanisms 50 are set on the head, it is possible to form multiple points of supporting force and tightening force in the length direction of the expansion sheet, thereby avoiding the soft waist phenomenon that often occurs in long expansion sheets on the head. Furthermore, the lightweight design of the expansion sheet can also be achieved. The lightweight development of the expansion sheet is conducive to reducing the centrifugal force of the expansion sheet and the overall load of the wire drawing machine, reducing energy consumption, and improving control accuracy.

[0031] The new modular structure of the hollow shaft wire drawing machine head also includes a head front cover 80 and a head rear cover 100; the head front cover 80 is fixedly assembled on the upper wire ring 70, and the head rear cover 100 and the spring seat 90 are fixedly connected.

[0032] The broken bridge expansion sheet 40 is provided with a break bridge slot 410 and a spring slot 420; a spring slot 430 is provided in the spring slot 420. The spring 430 is used to provide radial tightening force to complete the automatic contraction of the broken bridge expansion sheet 40 after the break bridge expansion sheet 40 is unfolded. The break bridge slot 410 is used to solve the bending problem of the super long expansion sheet.

[0033] The aluminum drum unit 310 is provided with a snap-in position 3150, and the connection part of the broken bridge expansion piece 40 has a structure that matches the snap-in position 3150. When the broken bridge expansion piece 40 is snap-into the snap-in position 3150, this active snap-in connection can prevent the broken bridge expansion piece 40 from falling off in the radial direction of the segmented aluminum drum 30. For the active snap-in connection between the aluminum drum and the expansion piece, please refer to the Chinese patent: A support device for the intermediate cone sleeve of the head expansion piece (publication number CN213803526U).

[0034] The expansion and retraction 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 tension spring 560 .

[0035] A piston ring assembly position 3130 is provided on the aluminum drum body 310 , and a piston ring driving chamber 570 is defined between the front winding shaft body 110 and the piston ring assembly position 3130 . The pipe body gas path 210 is connected to the piston ring driving chamber 570 through a hollow screw 60 .

[0036] The piston ring 510 is assembled in the piston ring driving chamber 570 .

[0037] The ramp slider ring 520 is disposed on the front end winding shaft body 110 and is in contact with and cooperates with the piston ring 510 .

[0038] A plurality of slope slider grooves 5210 are provided on the slope slider ring 520, and a slope matching portion 5340 is provided on the connecting rod slider 530. The connecting rod slider 530 is movably assembled in the slope slider groove 5210; the slope matching portion 5340 and the slope groove bottom of the slope slider groove 5210 cooperate with each other to form a sliding connection.

[0039] Both ends of the connecting rod 540 are movably connected to the connecting rod slider 530 and the aluminum drum body 310 respectively.

[0040] The movable connection between the connecting rod 540, the connecting rod slider 530 and the aluminum rotary drum unit 310 is 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 rotary drum unit 310 is provided with a cylinder upper rod head accommodating position 3110, and the edge of the cylinder upper rod head accommodating position 3110 is provided with a cylinder upper connecting rod movable opening 3120; the connecting rod slider 530 is provided with a block upper rod head accommodating position 5310, and the edge of the block upper rod head accommodating position 5310 is provided with a block upper connecting rod movable opening 5320; the connecting rod heads 5420 at both ends of the connecting rod 540 are respectively movably assembled in the cylinder upper rod head accommodating position 3110 and the block upper rod head accommodating position 5310. The connecting rod head 5420 is a spherical connecting rod head.

[0041] The aluminum drum unit 310, the upper wire ring 70, and the spring seat 90 are all provided with a top spring seat hole 3140, and 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 is pressed against the side of the ramp slider ring 520 that is different from the piston ring 510.

[0042] The connecting rod slider 530 is provided with a slider spring groove 5330, and the slider spring 560 is arranged in the slider spring groove 5330. The slider spring 560 surrounds the connecting rod slider 530 to provide radial tightening force for the connecting rod slider 530. The connecting rod slider 530 is arranged at a position corresponding to the rising bridge groove 410 of the broken bridge type rising plate 40.

[0043] Implementation mechanism of the expansion and retraction mechanism: When the compressed air is turned on, the piston ring 510 pushes the ramp slider ring 520 to move toward the front end, compressing the slider ring top spring 550; at the same time, after the connecting rod slider 530 loses the supporting effect of the ramp slider ring 520, it slides down along the ramp slider groove 5210 under the action of the slider tension spring 560, and the broken bridge type expansion plate 40 contracts radially under the action of the expansion plate tension spring 430 after losing the supporting effect of the connecting rod slider 530.

[0044] When the compressed air is disconnected, 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 expansion plate 40 is unfolded under the supporting action of the connecting rod slider 530 .

[0045] When the connecting rod slider 530 slides up or down along the slope slider groove 5210, the connecting rod 540 and the slope slider groove 5210 limit the up and down sliding range of the connecting rod slider 530 within a fixed range, so that when subjected to an upward sliding driving force or a downward sliding driving force, the connecting rod slider 530 can quickly make an effective response, reduce invalid upward sliding or invalid downward sliding stroke, reduce system response time, and improve control accuracy and efficiency.

[0046] At the same time, when the expansion sheet is lifted, the connecting rod 540 can also provide a normal limiting force (parallel to the direction of the hollow main shaft 10) to the connecting rod slider 530, preventing the connecting rod slider 530 from being displaced on the expansion sheet along the direction parallel to the hollow main shaft 10 when being pushed by the slope slider groove 5210, further ensuring the efficiency of the expansion sheet extension. In addition, in the process of lifting the expansion sheet, the connecting rod 540 can also provide a radial supporting force to the connecting rod slider 530, and part of the reaction force from the expansion sheet is borne by the connecting rod 540, so as to balance the force of the slope slider ring 520 and improve the stability of the expansion sheet extension action.

[0047] 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.

[0048] 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.

[0049] 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 new type of modular hollow shaft wire drawing machine head, characterized by: It comprises a hollow main shaft (10), an air delivery pipe (20), a segmented aluminum rotating drum (30), a broken bridge expansion plate (40), an expansion plate telescopic mechanism (50), an upper wire ring (70), and a spring seat (90); The hollow main shaft (10) comprises a front winding shaft body (110) and a rear assembly shaft body (120); a front cavity (1110) is provided inside the front winding shaft body (110), and an intra-shaft air path (1210) is provided inside the rear assembly shaft body (120); A tube body gas path (210) is arranged in the gas delivery pipe (20); the gas delivery pipe (20) is arranged in the front end cavity (1110); and the tube body gas path (210) is connected to the in-shaft gas path (1210); The segmented aluminum rotating drum (30) comprises a plurality of segments of aluminum rotating drum monomers (310), and the aluminum rotating drum monomers (310) are fixedly mounted on the front winding shaft body (110); The upper wire ring (70) is arranged at the front end of the front winding shaft body (110), and the spring seat (90) is arranged at the rear end of the front winding shaft body (110); The broken bridge expansion sheet (40) is movably embedded in the aluminum rotating drum unit (310); The sheet expansion and retracting mechanism (50) is arranged at both ends of the aluminum drum unit (310) to achieve the retractable driving of the broken bridge type sheet expansion (40).

2. The novel modular hollow shaft wire drawing machine head according to claim 1 is characterized in that: The expansion and retracting mechanism (50) comprises 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 tension spring (560); The piston ring (510) and the slope slider ring (520) are both arranged on the front winding shaft body (110) and are in contact with each other, and the slider ring top spring (550) is pressed against an end of the slope slider ring (520) that is different from the piston ring (510); The slope slider ring (520) is provided with a plurality of slope slider grooves (5210), the connecting rod slider (530) is provided with a slope matching portion (5340), and the connecting rod slider (530) is movably assembled in the slope slider grooves (5210); Both ends of the connecting rod (540) are movably connected to the connecting rod slider (530) and the aluminum drum unit (310) respectively; The slider tension spring (560) surrounds the connecting rod slider (530) and is used to provide radial tightening force for the connecting rod slider (530).

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

4. The novel modular hollow shaft wire drawing machine head according to claim 2 is characterized in that: A piston ring drive chamber (570) is formed between the front winding shaft (110) and the aluminum drum unit (310), the piston ring (510) is arranged in the piston ring drive chamber (570), and the tube body air path (210) is connected to the piston ring air chamber (570).

5. The novel modular hollow shaft wire drawing machine head according to claim 4 is characterized in that: A piston ring assembly position (3130) is provided on the aluminum drum unit (310), and the front winding shaft body (110) and the piston ring assembly position (3130) define the piston ring drive chamber (570); The hollow main shaft (10) and the air delivery pipe (20) are fixedly connected via a hollow screw (60), and the pipe body air path (210) is connected to the piston ring air cavity (570) via the hollow screw (60).

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

7. The novel modular hollow shaft wire drawing machine head according to claim 1 is characterized in that: The novel modular structure of the hollow shaft wire drawing machine head also includes a head front end cover (80) and a head rear end cover (100); The machine head front end cover (80) is fixedly mounted on the upper wire ring (70), and the machine head rear end cover (100) and the spring seat (90) are fixedly connected.

8. The novel modular hollow shaft wire drawing machine head according to claim 1 is characterized in that: The segmented aluminum rotating drum (30) comprises at least two segments of the aluminum rotating drum monomers (310), and the sheet expansion and retracting mechanism (50) is provided between every two adjacent segments of the aluminum rotating drum monomers (310).

9. The novel modular hollow shaft wire drawing machine head according to claim 1 is characterized by: The broken bridge expansion piece (40) is provided with a breaking bridge groove (410) and a breaking spring groove (420); A sheet expansion spring (430) is arranged in the sheet expansion spring groove (420); The sheet expansion and retracting mechanism (50) is arranged at a corresponding position of the sheet expansion bridge groove (410).

10. The novel modular hollow shaft wire drawing machine head according to claim 1 is characterized in that: The head of the hollow shaft wire drawing machine with a novel modular structure also includes a front bearing and a bearing seat (1), an oil injection 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) and the oil injection 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 end of the rear end assembly shaft (120); An oil mist passage (8) is provided in the front bearing and the bearing seat (1), and the oil mist passage (8) is connected to the oil injection ring (2); The head of the hollow shaft wire drawing machine with a novel modular structure further comprises a barrel changing mechanism (9), wherein the barrel changing mechanism (9) comprises a barrel changing turntable (91) and a barrel changing bearing (92).

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