CN207656001U - A kind of three automatic double-tractors of tri- rails of 1000T - Google Patents

Abstract

The utility model discloses a 1000T three-track three-head automatic double traction machine, which includes a main frame and a feeding frame. A trolley power frame is installed at one end of the main frame, and an upper trolley motor and a lower trolley are arranged on the trolley power frame. Motor, the upper trolley rail and the lower trolley rail are installed on the main frame, the upper trolley rail cooperates with the upper trolley, the lower trolley rail cooperates with the lower trolley, one side of the upper trolley and the lower trolley Both are equipped with curved claws and supporting plates, a saw motor is installed at one end of the feeding frame, a saw rail is installed in the middle of the feeding frame, and an interrupt saw is slidably arranged on the saw rail. The rotating set has a set of rollers. The 1000T three-track three-head automatic double tractor realizes material clamping through the hydraulic cylinder to push the opening and closing action of the curved claws. The height of the two trolleys is misaligned, and the two independently cycle clamping materials. The motor is controlled by PLC to ensure the reliability of the tractor's action. and walking stability.

Description

A 1000T three-track three-head automatic double traction machine

technical field

The utility model relates to the field of tractors, in particular to a 1000T three-track three-head automatic double tractor.

Background technique

After years of development, there are many varieties and types of tractors. Structurally, tractors are mainly composed of rails, traction heads, traction power devices, automatic interrupt saws, and electrical control systems. Disadvantages, as follows:

1. Poor track guidance accuracy: Various types of tracks have poor installation accuracy due to short cross-sectional distances and difficult installation and adjustment, resulting in a large swing range at the clamping position of the tractor head and reducing the surface quality of the profile.

2. The weight of the traction head is large: the current clamping device has two mechanisms, the pallet opening and closing mechanism and the claw lifting mechanism. These two mechanisms are controlled separately by the electrical system during the working process, so that they perform sequential actions. In order to achieve the action of clamping and releasing the aluminum material; there are various powers driving these two mechanisms, such as hydraulic pressure, pneumatic power, electric push rod, deceleration motor, etc. These power devices must be installed on the frame. In addition to the electrical control box controlling these two mechanisms, the weight of the traction head is heavy. Since the extrusion process requires the traction head to have a short start-up time and a fast return speed, the heavier the traction head, the more powerful the traction power device must be equipped to When the start-up requirements are met, at the same time, when the electrical control system fails, the traction head will strongly impact the buffer device and the interrupt saw, often causing serious equipment damage, and sometimes even safety accidents.

3. High failure rate: The driving device of the pallet opening and closing mechanism and the claw lifting mechanism and its electrical control box are all installed on the high-speed traction head. Due to the vibration and impact during the operation, the driving device, induction switch, and electrical components in the box etc., are prone to failure, and the control of the pallet pressing claw by the main control cabinet is realized through the trolley line and collector with high failure rate. In this way, the mechanisms, electrical parts and trolley line collector The failure of the tractor has become a high-incidence area for the failure of the entire tractor.

4. Large traction power and high energy consumption: Due to the heavy weight of the traction head, the traction power to be configured is relatively large, and the energy consumption also increases accordingly.

5. Poor safety: There are many mechanisms installed on the tractor head, so the volume of the tractor head is large, and the volume of the tractor head protruding from the track is large. Due to the danger of high-speed operation of the tractor head, safety management is difficult and safety accidents are prone to occur.

To sum up, the current tractors can no longer meet the requirements of enterprises in terms of accuracy, structure, failure rate, traction work or safety. direction.

Utility model content

The purpose of this utility model is to provide a 1000T three-track three-head automatic double traction machine to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a 1000T three-track three-head automatic double traction machine, including a main frame and a feeding frame, one end of the main frame is equipped with a trolley power frame, and the trolley power frame The upper trolley motor and the lower trolley motor are installed on the upper part, and the upper trolley rail and the lower trolley rail are installed on the main frame. The upper trolley rail cooperates with the upper trolley, and the lower trolley rail cooperates with the lower trolley. The upper trolley cooperates with the motor of the upper trolley through a chain, and the lower trolley cooperates with the lower motor of getting off the trolley through a chain. Both sides of the upper trolley and the lower trolley are equipped with curved claws and supporting plates. A saw motor is installed at one end of the feeding frame, a saw rail is installed in the middle of the feeding frame, and an interrupt saw is slidingly arranged on the saw rail, and the interrupt saw cooperates with the saw motor through a chain. A group of rollers are rotated on the feeding frame, and a waste trough is placed on one side of the feeding frame.

Preferably, an upper tension frame and a lower tension frame are installed on the main frame, the upper tension frame corresponds to the upper trolley motor, and the lower tension frame corresponds to the lower trolley motor , Both ends of the upper trolley rail and the lower trolley rail can be detachably connected with shock absorbing blocks, and the shock absorbing blocks are assembled by rubberized nuts and angle steel.

Preferably, both the upper trolley motor and the lower trolley motor cooperate with a sprocket, the sprocket cooperates with the upper tension frame or the lower tension frame, and the upper tension frame and the lower tension frame One end of the tension frame is slidingly provided with a tension wheel, the tension wheel is installed on the tension plate, and the tension plate slides with the chute opened on the upper tension frame or the lower tension frame Cooperating, one side of the upper tensioning frame and the lower tensioning frame is provided with a tensioning oil cylinder, and the tensioning oil cylinder is detachably connected with the tensioning plate.

Preferably, both the upper trolley and the lower trolley are composed of a frame, a cooler, running wheels, a support frame, and a large frame. The cooler is located in the middle of the frame, and the front part of the frame is covered with a There is an end cover, and the vehicle frame is equipped with vehicle side rollers on the side of the vehicle running wheel. The support frame is slidably matched with the main frame, and the large frame is slidably matched with the vehicle frame through the lifting cylinder. , a slide frame is slidably arranged on the large frame, and a pressure claw oil cylinder is installed on the slide frame, the pressure claw oil cylinder is hinged with the pressure claw shaft, and the curved pressure claw is arranged on the end of the pressure claw shaft department.

Preferably, the bottom of the large frame is equipped with a support board oil cylinder, the support board oil cylinder is connected with the support board, and a carriage motor is provided at one end of the large frame, and the carriage motor is connected with the carriage sprocket and chain. The carriage cooperates, and a chain connector is installed on one side of the carriage, and the carriage is connected with the chain through the chain connector, and the frame and the interrupt saw are provided with chains that cooperate with the chain. chain connectors.

Preferably, a pressing oil cylinder is installed on one side of the interrupted saw, and the pressing oil cylinder is hinged to the pressing block, and a set of saw running wheels are installed on the lower part of the interrupted saw, and the saw running wheels and the saw The upper part of the feeding frame is also equipped with an auxiliary rail, and the auxiliary rail cooperates with the auxiliary wheel installed on the interrupted saw. The interrupted saw includes a saw head and a saw seat. The saw of the interrupted saw The head is slidably matched with the saw seat of the interrupted saw, and a slide rail is installed on the saw seat of the interrupted saw, and the saw head is slidably matched with the slide rail. Cooperate.

Preferably, both the upper trolley rail and the lower trolley rail use 40×40 standard cold-drawn square steel as the main rail, and the national standard 250# I-beam is used for supporting installation, and the two ends of the I-beam are processed to ensure that the square steel The parallelism and perpendicularity of the installation, the traveling wheels of the car are arranged in four groups, each group travels with two rollers up and down, and four groups of side rollers are used as auxiliary guides.

Preferably, the upper trolley motor, the lower trolley motor, and the saw motor all use Mitsubishi servo motors, and the chain is supported by a wear-resistant PE plate groove to reduce running resistance and running noise. The brakes use frequency conversion DC brakes, and the upper trolley The motor, the lower trolley motor, the carriage motor and the saw motor are all connected to the PLC and controlled by the PLC, and the control parameters are set by the man-machine interface.

Compared with the prior art, the beneficial effect of the utility model is: when the 1000T three-rail three-head automatic double tractor is used, both the upper trolley rail and the lower trolley rail use 40×40 standard cold-drawn square steel as the main rail. The national standard 250# I-beam is used for supporting installation. The two ends of the I-beam are processed to ensure the parallelism and verticality of the installation of the square steel, so as to ensure that the upper trolley and the lower trolley can run smoothly on the main rail of the square steel. The wheels are arranged in four groups, and each group has two upper and lower rollers. Four sets of side rollers are used as auxiliary guides to ensure that the upper trolley and the lower trolley can run smoothly and reliably. The distance between the main rails of square steel is to improve the guiding stability. The upper trolley motor, the lower trolley motor and the saw motor all use Mitsubishi servo motors. The servo motor control improves the upper trolley, the lower trolley and the interrupted saw. The moving speed and chain The controllability of tension adopts high-performance vector control mode, and the accuracy of torque control can reach 0.1%. The return adopts speed control, which is decelerated in three stages to ensure the accuracy of deceleration position. The position control adopts encoder to collect signals to reduce external Lines to reduce line faults. The chain is supported by wear-resistant PE plate grooves to reduce running resistance and running noise. The brakes use frequency conversion DC brakes, which are reliable and stable. The upper trolley motor, lower trolley motor, carriage motor, and saw motor are all integrated with PLC The connection is controlled by PLC, and the control parameters are set by man-machine interface. It can provide manual, automatic, random sawing, stop sawing, and set length sawing, etc., which improves the flexibility of the tractor and satisfies customers. Different use requirements; preset traction force pressure during operation, after the cycle starts, the upper trolley clamps the aluminum material at the welding position and cuts it by the interrupt saw; pulls the aluminum material to the end of the cooling bed, the lower trolley returns to the origin in advance, clamps the aluminum material, Then it is cut by the interrupt saw, and the two are cyclically pulled to achieve zero delay. If the profile transfer is not completed before the end of the extrusion cycle, the transfer operation will be performed in the non-extrusion cycle, and the pressing block will be suspended until the upper trolley returns to the initial state. position, after the non-extrusion cycle of the binder block ends and the extrusion process continues, the carriage of the upper trolley will extend, the large carriage will rise, accelerate, and clamp at the welding mark, and the pressure will be transmitted from the lower trolley to the upper trolley, The upper carriage will cut the extruded material at the weld marks. After the sawing is completed, the lower trolley will send the extruded profile out and put it on the slide out table. Then the lower trolley releases the curve pressing claws, and the whole rises, and at the same time, the processing system will receive a transfer request, and the lower trolley will return and accept the delivery of the next extrusion; in the non-extrusion cycle, when the "last aluminum After the "ingot" signal, the program cycle will end, and the lower trolley will send out the last extruded shape and place it on the slide-out table for transmission, and the system will be ready for changing the program or accepting the next cycle start command; this device pushes the curve pressure through the hydraulic cylinder The opening and closing action of the claws realizes the material clamping, the height of the two trolleys is misaligned, and the two independently circulate the material, and the motor is controlled by PLC to ensure the reliability of the tractor's action and the stability of walking.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the trolley power frame part of the utility model.

Fig. 3 is a structural schematic diagram of the end of the tension frame of the utility model.

Fig. 4 is a structural schematic diagram of the cooperation between the tensioning oil cylinder and the tensioning wheel of the utility model.

Fig. 5 is a structural schematic diagram of the upper trolley of the utility model.

FIG. 6 is a schematic view of the structure of FIG. 5 rotated by 180 degrees.

Fig. 7 is a schematic diagram of the structure of the cooperation between the interruption saw and the pressing block of the utility model.

Fig. 8 is a schematic structural diagram of the cooperation of the interrupt saw, the saw rail and the saw motor of the present invention.

Fig. 9 is a structural diagram of the cooperation of the saw head, the saw seat, the slide rail and the cylinder of the utility model.

In the figure: 1. Main frame, 2. Feeding frame, 3. Car power frame, 4. Upper trolley motor, 5. Lower trolley motor, 6. Upper trolley rail, 7. Lower trolley rail, 8. Upper trolley, 9 , Bottom trolley, 10, Curved claw, 11, Supporting plate, 12, Saw motor, 13, Saw rail, 14, Interrupt saw, 15, Roller, 16, Waste chute, 17, Upper tension frame, 18, Lower sheet Tight frame, 19, damping block, 20, trolley sprocket, 21, tension wheel, 22, tension plate, 23, chute, 24, tension cylinder, 25, vehicle frame, 26, end cover, 27, Cooler, 28, car running wheel, 29, car side roller, 30, support frame, 31, lifting oil cylinder, 32, large frame, 33, slide frame, 34, pressure claw oil cylinder, 35, pressure claw shaft, 36, support Plate oil cylinder, 37, support plate, 38, carriage motor, 39, carriage sprocket, 40, chain connector, 41, pressing oil cylinder, 42, pressing block, 43, sawing wheel, 44, auxiliary rail, 45, auxiliary wheel, 46, slide rail, 47, cylinder, 48, saw seat, 49, saw head.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-8, the utility model provides a technical solution: a 1000T three-track three-head automatic double traction machine, including a main frame 1 and a feeding frame 2, and one end of the main frame 1 is equipped with a trolley power frame 3. The upper trolley motor 4 and the lower trolley motor 5 are installed on the trolley power frame 3, the upper trolley rail 6 and the lower trolley rail 7 are installed on the main frame 1, and the upper trolley rail 6 and the upper trolley 8, the lower trolley rail 7 cooperates with the lower trolley 9, the upper trolley 8 cooperates with the upper trolley motor 4 through a chain, and the lower trolley 9 cooperates with the lower lower trolley motor 5 through a chain, and the One side of the upper trolley 8 and the lower trolley 9 is equipped with a curved claw 10 and a supporting plate 11, one end of the feeding frame 2 is equipped with a saw motor 12, and the middle part of the feeding frame 2 is equipped with a saw. rail 13, on which the saw rail 13 is slidably provided with an interruption saw 14, the interruption saw 14 cooperates with the saw motor 12 through a chain, and a group of rollers 15 are rotated on the feeding frame 2, and the feeding frame 2. A waste trough 16 is placed on one side, and an upper tension frame 17 and a lower tension frame 18 are installed on the main frame 1, and the upper tension frame 17 corresponds to the upper trolley motor 4, so The lower tension frame 18 is corresponding to the lower trolley motor 5, and the two ends of the upper trolley rail 6 and the lower trolley rail 7 can be detachably connected with a shock absorber 19, and the shock absorber 19 is composed of a package Rubber nuts and angle steel are assembled, and the upper trolley motor 4 and the lower trolley motor 5 cooperate with the sprocket 20, and the sprocket 20 cooperates with the upper tension frame 17 or the lower tension frame 18 , one end of the upper tensioning frame 17 and the lower tensioning frame 18 is slidingly provided with a tensioning wheel 21, and the tensioning wheel 21 is arranged on a tensioning plate 22, and the tensioning plate 22 is connected to the tensioning plate 22. The chute 23 provided on the upper tension frame 17 or the lower tension frame 18 is slidably matched, and one side of the upper tension frame 17 and the lower tension frame 18 is equipped with a tension oil cylinder 24. The tensioning oil cylinder 24 is detachably connected with the tensioning plate 22, and the upper trolley 8 and the lower trolley 9 are composed of a vehicle frame 25, a cooler 27, a vehicle running wheel 28, a supporting frame 30, and a large frame 32. , the cooler 27 is located in the middle of the vehicle frame 25, the front cover of the vehicle frame 25 is provided with an end cover 26, and the vehicle frame 25 is equipped with vehicle side rollers 29 on the sides of the vehicle running wheels 28 , the support frame 30 is slidably matched with the main frame 1, the large frame 32 is slidably fitted with the vehicle frame 25 through the lifting cylinder 31, and a sliding frame 33 is slidably arranged on the large frame 32, and the sliding frame 33 is provided with a pressure claw oil cylinder 34, the pressure claw oil cylinder 34 is hinged with the pressure claw shaft 35, the curved pressure claw 10 is installed at the end of the pressure claw shaft 35, and the bottom of the big frame 32 is installed There is a support board oil cylinder 36, the support board oil cylinder 36 is connected with the support board 37, and a carriage motor 38 is installed at one end of the large frame 32, and the carriage motor 38 is connected with the carriage sprocket 39 and a chain to the carriage. frame 33, the side of the slide frame 33 is equipped with a chain connector 40, the slide The frame 33 is connected to the chain through the chain connector 40, the frame 25 and the interrupted saw 14 are equipped with a chain connector 40 that cooperates with the chain, and one side of the interrupted saw 14 is provided with a pressing material. Oil cylinder 41, the pressing oil cylinder 41 is hinged with the pressing block 42, a group of saw running wheels 43 are installed on the bottom of the interrupted saw 14, the saw running wheels 43 cooperate with the saw rail 13, and the feeder An auxiliary rail 44 is also installed on the top of the frame 2, and the auxiliary rail 44 cooperates with the auxiliary wheel 45 installed on the interrupted saw 14. The interrupted saw 14 includes a saw head 49 and a saw seat 48. The interrupted saw 14 The saw head 49 is slidingly matched with the saw seat 48 of the interrupted saw 14. A slide rail 46 is installed on the saw seat 48 of the interrupted saw 14. The saw head 49 is slidably matched with the described slide rail 46. On the saw seat 48 A cylinder 47 is installed, and the cylinder 47 cooperates with the saw head 49 .

Working principle: When using the 1000T three-track three-head automatic double tractor, the upper trolley rail 6 and the lower trolley rail 7 both use 40×40 standard cold-drawn square steel as the main rail, and use national standard 250# I-beam as the support Installation, the two ends of the I-beam are processed to ensure the parallelism and verticality of the square steel installation, so as to ensure that the upper trolley 8 and the lower trolley 9 can run smoothly on the main rail of the square steel, and the traveling wheels 28 of the trolley are arranged in four groups. Each set of upper and lower two rollers travels, and four sets of side rollers 29 are used as auxiliary guides to ensure that the upper trolley 8 and the lower trolley 9 can run smoothly and reliably, and the two square steel bars should be pulled apart as far as possible without affecting the cooling air groove The distance between the main rails is to improve the guiding stability. The upper trolley motor 4, the lower trolley motor 5, and the saw motor 12 all use Mitsubishi servo motors, and the servo motor control improves the movement of the upper trolley 8, the lower trolley 9 and the interrupt saw 14. The controllability of speed and chain tension adopts high-performance vector control mode, and the accuracy of torque control can reach 0.1%. The return adopts speed control and decelerates in three stages to ensure the accuracy of deceleration position. The position control adopts encoder to collect signals , reduce external lines, reduce line faults, the chain is supported by wear-resistant PE plate grooves, reducing running resistance and running noise, the brake uses frequency conversion DC brake, the brake is reliable and stable, the upper trolley motor 4, the lower trolley motor 5, and the carriage motor 38 , Saw motor 12 are all connected with PLC and controlled by PLC. The control parameters are set by man-machine interface, which can provide manual, automatic, random sawing, stop sawing, and set length sawing, etc., which improves the traction machine. The flexibility of use meets the different requirements of customers; the traction pressure is preset during operation, and after the cycle starts, the upper trolley 8 clamps the aluminum at the welding position and is cut by the interrupt saw; the aluminum is pulled to the end of the cooling bed, and the lower trolley 9 Return to the origin in advance, clamp the aluminum material, and then cut it with the interruption saw 14. The two are cyclically pulled to achieve zero delay. If the profile transfer is not completed before the end of the extrusion cycle, the transfer operation will be performed in the non-extrusion cycle. The material block 42 will pause until the upper dolly 8 returns to the initial position. After the non-extrusion cycle of the pressing block 42 ends and the extrusion process continues, the carriage 33 of the upper dolly 8 will stretch out, and the large frame 32 will rise, accelerate, Clamping at the welding mark, the pressure is transmitted from the lower trolley 9 to the upper trolley 8, and the upper trolley 8 will cut the extruded material at the welding mark. After the sawing is completed, the lower dolly 9 will send out the extruded profile and put it on the slide-out platform. Then the lower trolley 9 releases the curve pressing claw 10, and the whole rises, and the processing system will receive a transmission request at the same time, and the lower trolley 9 will return and accept the transmission of the next extrusion; in the non-extrusion cycle, when the " After the "last aluminum ingot" signal, the program cycle will end, and the lower trolley 9 will send out the last extrusion and place it on the slide-out table for delivery. The system is ready to change the program or accept the next cycle start command. The man-machine interface The model is Weilun KT6070I, the PLC model is Mitsubishi FX3U, and the interrupt saw is driven by a cylinder.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A 1000T three-track three-head automatic double traction machine, including a main frame (1) and a feeding frame (2), characterized in that: one end of the main frame (1) is equipped with a trolley power frame (3), The trolley power frame (3) is equipped with an upper trolley motor (4) and a lower trolley motor (5), and the main frame (1) is equipped with an upper trolley rail (6) and a lower trolley rail (7) , the upper trolley rail (6) cooperates with the upper trolley (8), the lower trolley rail (7) cooperates with the lower trolley (9), and the upper trolley (8) and the upper trolley motor (4) pass Chain cooperation, the lower trolley (9) is coordinated with the lower motor (5) through a chain, and one side of the upper trolley (8) and the lower trolley (9) are equipped with curved claws ( 10) and pallet (11), the saw motor (12) is installed at one end of the feeding frame (2), the saw rail (13) is installed in the middle of the feeding frame (2), and the saw rail ( 13) An interrupt saw (14) is slidably arranged on the top, and the interrupt saw (14) cooperates with the saw motor (12) through a chain, and a group of rollers (15) are rotated on the feeding frame (2). A waste trough (16) is placed on one side of the feeding frame (2). 2. A 1000T three-track three-head automatic double traction machine according to claim 1, characterized in that: an upper tension frame (17) and a lower tension frame (18) are installed on the main frame (1) ), the upper tension frame (17) corresponds to the upper trolley motor (4), the lower tension frame (18) corresponds to the lower trolley motor (5), and the upper trolley rail ( 6) The two ends of the lower trolley rail (7) can be detachably connected with shock absorbing blocks (19), and the shock absorbing blocks (19) are assembled by rubberized nuts and angle steel. 3. A 1000T three-track three-head automatic double tractor according to claim 2, characterized in that: the upper trolley motor (4) and the lower trolley motor (5) are both matched with the sprocket (20) , the sprocket (20) cooperates with the upper tension frame (17) or the lower tension frame (18), the upper tension frame (17) and the lower tension frame (18) One end is slidably provided with a tensioning wheel (21), and the tensioning wheel (21) is installed on the tensioning plate (22), and the tensioning plate (22) is connected with the upper tensioning frame (17) or It is the sliding fit of the chute (23) opened on the lower tensioning frame (18), and the tensioning oil cylinder (24) is installed on one side of the upper tensioning frame (17) and the lower tensioning frame (18). ), the tension cylinder (24) is detachably connected to the tension plate (22). 4. A 1000T three-track three-head automatic double tractor according to claim 1, characterized in that: the upper trolley (8) and the lower trolley (9) are composed of a frame (25), a cooler (27), vehicle running wheels (28), support frame (30), and large frame (32), the cooler (27) is located in the middle of the frame (25), and the front of the frame (25) The cover is provided with an end cover (26), and the vehicle frame (25) is equipped with vehicle side rollers (29) on the side of the vehicle running wheel (28), and the support frame (30) and the main frame (1) Sliding fit, the large frame (32) is slidingly fitted with the vehicle frame (25) through the lifting cylinder (31), and a sliding frame (33) is slidably arranged on the large frame (32), and the sliding frame (33) is A pressure claw oil cylinder (34) is installed on the frame (33), the pressure claw oil cylinder (34) is hinged with the pressure claw shaft (35), and the curved pressure claw (10) is installed on the pressure claw shaft (35 ) at the end. 5. A 1000T three-rail three-head automatic double traction machine according to claim 4, characterized in that: the support board oil cylinder (36) is installed at the bottom of the frame (32), and the support board oil cylinder (36 ) is connected with the support plate (37), and one end of the big frame (32) is equipped with a carriage motor (38), and the carriage motor (38) is connected with the carriage through a carriage sprocket (39) and a chain (33), a chain connector (40) is installed on one side of the carriage (33), the carriage (33) is connected to the chain through the chain connector (40), and the frame (25 ), the interrupt saw (14) is equipped with a chain connector (40) that cooperates with the chain. 6. A 1000T three-rail three-head automatic double traction machine according to claim 4, characterized in that: a pressing oil cylinder (41) is installed on one side of the interrupt saw (14), and the pressing oil cylinder ( 41) Hinged with the binder block (42), a set of saw running wheels (43) are installed at the lower part of the interrupted saw (14), and the saw running wheels (43) cooperate with the saw rail (13). The upper part of the feeding frame (2) is also equipped with an auxiliary rail (44), and the auxiliary rail (44) cooperates with the auxiliary wheel (45) installed on the interrupt saw (14), and the interrupt saw (14) ) includes a saw head (49) and a saw seat (48), the saw head (49) of the interrupt saw (14) slides with the saw seat (48) of the interrupt saw (14), and the interrupt saw (14 ) is equipped with a slide rail (46) on the saw base (48), the saw head (49) is slidingly matched with the slide rail (46), and a cylinder (47) is installed on the saw base (48), and the cylinder (47) cooperate with the saw head (49).