CN210456904U

CN210456904U - Gantry type active pay-off rack for wire and cable extruder set

Info

Publication number: CN210456904U
Application number: CN201921025307.1U
Authority: CN
Inventors: 张清富; 宣福文
Original assignee: Anhui Prius Electrician Machinery Manufacturing Co ltd
Current assignee: Anhui Prius Electrician Machinery Manufacturing Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-05-05
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses a gantry type active pay-off rack for a wire and cable extruder set, wherein one side of a rack is provided with a main transmission component, an opening and closing component is arranged on the opposite side in a matching way, and the gantry type active pay-off rack also comprises a lifting component and a wire outlet component, wherein the main transmission component is used for clamping a wire coil and provides power for the rotation of the wire coil; the belt conveyor comprises a main transmission motor, a main shaft of the main transmission motor is provided with a small synchronous belt pulley, and the belt conveyor also comprises a large synchronous belt pulley arranged on a frame, wherein the small synchronous belt pulley is in transmission connection with the large synchronous belt pulley; the main shaft of the large synchronous belt pulley on the inner side of the rack is provided with a dial plate and a dial pin, and the left tip cone is connected to the free end of the main shaft of the large synchronous belt pulley through a flat key. The opening and closing assembly is used for being matched with a clamping wire coil; the lifting assembly is used for lifting the wire coil; the wire outlet assembly comprises two output modes of a guide roller and a roller. The utility model discloses can the drum of multiple specification of clamping, working method is nimble, and the operation is stable is difficult for the broken string, easy operation, and production efficiency is high.

Description

Gantry type active pay-off rack for wire and cable extruder set

Technical Field

The utility model relates to a plastics extrusion equipment, concretely relates to pay off rack for extruder group.

Background

The pay-off rack is widely used in extruded conductor insulating layer, restrictive coating production line, rewinding unit, stranded conductor and cabling unit etc. by the wire and cable production industry, and different production lines, the drum specification that is suitable for is different, and the structure is different, and the drum width and the diameter range difference that need the clamping in the different production lines are big, and main work object includes national standard drum, also includes customer self-control non-standard drum. In addition, wire and cable production includes high-speed production lines and conventional production lines, and thus an active pay-off stand is required to be capable of speed adjustment.

Among the prior art, the problem that initiative pay off rack exists mainly includes: due to insufficient power configuration, unstable control, easy wire breakage, small wire coil clamping range, inconvenient operation and incomplete production site layout.

Disclosure of Invention

The utility model aims to solve the technical problem that a gantry type initiative pay off rack for wire and cable extruder set is provided, drum that can the multiple specification of clamping, working method is nimble, and the operation is stable is difficult for the broken string, easy operation, and production efficiency is high.

For solving the technical problem, the utility model discloses a wire and cable is planer-type initiative pay off rack for extrusion unit, which comprises a frame, one side of frame is provided with the subassembly that opens and shuts that is provided with that final drive assembly, offside match, still includes lifting unit and the subassembly of being qualified for the next round of competitions.

The main transmission assembly is used for clamping the wire coil and providing power for the wire coil to rotate; the belt conveyor comprises a main transmission motor, a main shaft of the main transmission motor is provided with a small synchronous belt pulley, and the belt conveyor also comprises a large synchronous belt pulley arranged on a frame, wherein the small synchronous belt pulley is in transmission connection with the large synchronous belt pulley; the main shaft of the large synchronous belt pulley on the inner side of the rack is provided with a dial plate and a dial pin, and the left tip cone is connected to the free end of the main shaft of the large synchronous belt pulley through a flat key.

The opening and closing assembly is used for being matched with a clamping wire coil; the device comprises an opening and closing outer sleeve arranged on a rack, wherein an opening and closing copper sleeve is arranged in an inner cavity of the opening and closing outer sleeve, an apex cone shaft is arranged in an inner cavity of the opening and closing copper sleeve, and a right apex cone is arranged at the free end of the apex cone shaft through a rolling bearing; the front flange fixing type air cylinder is fixedly connected with the opening and closing outer sleeve through an air cylinder fixing plate and is arranged in parallel with the opening and closing outer sleeve; the pull pin device is characterized by also comprising a gamma-shaped pull pin main fixing seat, wherein a cylinder piston rod fixing hole and a cylinder tip cone locking fixing hole are arranged at the equal height of a cross rod of the pull pin main fixing seat, and a shaft sleeve is arranged at the lower part of the pull pin main fixing seat; the piston rod of the light front flange fixed cylinder is fixedly connected to the cylinder piston rod fixing hole, and the top cone shaft is connected with the shaft sleeve.

The left tip cone and the right tip cone are coaxially arranged.

The lifting assembly is used for lifting the wire coil and comprises a lifting motor, a speed reducer, a lifting screw rod, a lifting copper nut and a lifting transmission support; the speed reducer is arranged on the lifting transmission support, the lifting motor is in transmission connection with the speed reducer, the lifting screw rod is arranged along the plumb line direction and is in transmission connection with the speed reducer, and the lifting copper nut is in transmission connection with the lifting screw rod; the lifting copper nut is connected with a wire coil lifting bracket through a lifting nut support, and a wire coil supporting plate is arranged below the front end of the wire coil lifting bracket.

The main transmission assembly further comprises a single-plate electromagnetic brake.

2 horizontal rails are arranged on the wire coil lifting bracket along the width direction of the rack, and the wire coil supporting plate is arranged between the 2 horizontal rails through 4 wire coil supporting plate rollers.

Vertical rails are arranged on the stand columns on the two sides of the rack, 2 idler wheels are arranged on the two sides of the wire coil lifting bracket respectively, and the idler wheels are matched with the vertical rails.

The lifting nut support comprises an upper supporting plate and a lower supporting plate, and a main beam of the wire coil lifting bracket is arranged between the upper supporting plate and the lower supporting plate of the lifting nut support and forms clearance fit.

The pneumatic tip cone locking device is used for locking a piston rod of the light front flange fixed type cylinder; the pneumatic tip cone locking device comprises a guide rod fixedly connected with the cylinder tip cone locking fixing hole and a pneumatic tip cone locking fixing seat matched with the guide rod; the guide rod and the piston rod are arranged in parallel, and the pneumatic tip cone locking fixing seat is fixedly connected with the air cylinder fixing plate.

The frame is provided with a main bracket fixing seat along the width direction, and the retractable outer sleeve is movably arranged on the frame through the main bracket fixing seat; the telescopic rack is characterized in that 3 screw holes A with tail ends penetrating through the outer surface of the rack are equidistantly arranged on the main bracket fixing seat, a plurality of screw holes B are arranged on the opening and closing outer sleeve in a matched mode, and one of the screw holes A and one of the screw holes B are positioned through bolts.

The outlet assembly comprises a guide roller arranged along the width direction of the rack and an outlet roller arranged at the upper end of the rack.

The pneumatic tip cone pin pulling device is used for adjusting the axial distance between the tip cone shaft and the piston rod of the front flange fixed type air cylinder; the pneumatic tip cone pin pulling device comprises a pin pulling seat, and a pin pulling is movably arranged in the pin pulling seat through a compression spring; an elongated slot is axially formed in the outer side of the top conical shaft, and 2 deep holes are machined in the top conical shaft on the side corresponding to the elongated slot by 180 degrees; the pneumatic tip cone pin pulling device is connected with the tip cone shaft through the shaft sleeve, the positioning bolt is screwed into the elongated slot outside the tip cone shaft through the shaft sleeve, and the shaft sleeve can horizontally move along the axial direction but cannot rotate around the shaft; the pulling pin is movably connected with one of the deep holes.

The technical advantages of the utility model are embodied in that: A. the wire coil is clamped by matching of a transmission assembly and an opening and closing assembly, and a pneumatic tip cone assembly of the opening and closing assembly consists of a right tip cone, a tip cone shaft, an opening and closing copper sleeve, an opening and closing outer sleeve, a light front flange fixed cylinder and a cylinder fixed plate, wherein a rolling bearing is arranged in the right tip cone, and the right tip cone can rotate around a shaft. The cylinder is flexible and can drive the tip cone shaft to advance or retreat, the opening and closing copper sleeve plays a supporting and guiding role on the tip cone shaft, the machine properly adjusts the length of the copper sleeve, the supporting shaft runs more stably and easily, the wire coil is not interfered, the power output is flexible and controllable, the wire breakage is not easy to generate, and the effect is obvious. B. The main transmission assembly further comprises a single-plate electromagnetic brake, and the single-plate electromagnetic brake can stop in time when a fault occurs. C. The opening and closing outer sleeve is movably arranged on the rack through an opening and closing assembly fixing seat, and the distance between the opening and closing outer sleeve and the rack can be adjusted along the axial direction; be provided with pneumatic apical cone pull pin device, it is adjustable apical cone axle with axial distance between the piston rod of the fixed cylinder of preceding flange, above structure mutually supports, all can be at left apical cone, right apical cone interval of axial adjustment, and the clamping precision is high, and the clamping mode is nimble various. D. The pneumatic tip cone locking device is used for locking a piston rod of the light front flange fixed type cylinder; in the paying-off operation process, the piston rod is locked, the operation is stable and safe, and the load of the cylinder is small; E. the lifting assembly is used for lifting the wire coil, so that the clamping convenience is improved, and the operation difficulty is reduced. F. The wire outlet assembly comprises a guide roller and a roller and provides diversified wire outlet modes. G. The components are closely matched, the occupied area is small, and the space of a production field is conveniently and fully utilized.

Drawings

Fig. 1 is a front view of a gantry type active pay-off rack for a wire and cable extruder set of the present invention;

fig. 2 is a side view of a gantry type active pay-off stand for a wire and cable extruder set of the present invention;

FIG. 3 is a schematic structural view of the main drive assembly;

FIG. 4 is a schematic structural view of the lift assembly;

fig. 5 is a top view of the lift assembly.

FIG. 6 is a schematic structural view of the opening and closing assembly;

FIG. 7 is a top view of the opening and closing assembly;

FIG. 8 is a front view of the opening/closing assembly showing the pin-pulling main fixing seat engaged with the nose cone shaft;

FIG. 9 is a side view of FIG. 8;

FIG. 10 is a top view of the pin pulling main fixing seat and the nose cone shaft in the opening and closing assembly.

Detailed Description

The following will further explain the specific operation of the present invention with reference to the accompanying drawings.

As can be seen in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, the utility model discloses a wire and cable is planer-type initiative pay off rack for extruder group, including frame 1, one side of frame 1 is provided with the main drive subassembly, the offside matches be provided with the subassembly that opens and shuts, still includes lifting unit and the subassembly of being qualified for the next round of competitions.

As can be seen from fig. 2 and 3, the main transmission assembly is used for clamping the wire coil and providing power for the wire coil to rotate; the belt conveyor comprises a main transmission motor 2, wherein a main shaft of the main transmission motor 2 is provided with a small synchronous belt pulley 20, and the belt conveyor also comprises a large synchronous belt pulley 21 arranged on a frame 1, wherein the small synchronous belt pulley 20 is in transmission connection with the large synchronous belt pulley 21; the main shaft of the large synchronous belt pulley 21 on the inner side of the frame 1 is provided with a dial plate 22 and a dial pin 23, and the main shaft further comprises a left tip cone 24 connected to the free end of the main shaft of the large synchronous belt pulley 21 through a flat key.

As seen in fig. 6 to 10, the opening and closing assembly is used for matching with a clamping wire coil; the device comprises an opening and closing outer sleeve 3 arranged on a rack 1, wherein an opening and closing copper sleeve 30 is arranged in an inner cavity of the opening and closing outer sleeve 3, an apex cone shaft 31 is arranged in an inner cavity of the opening and closing copper sleeve 30, and a right apex cone 32 is arranged at the free end of the apex cone shaft 31 through a rolling bearing; the front flange fixing type air cylinder is characterized by further comprising a light front flange fixing type air cylinder 34 fixedly connected with the opening and closing outer sleeve 3 through an air cylinder fixing plate 33, wherein the light front flange fixing type air cylinder 34 is arranged in parallel with the opening and closing outer sleeve 3; the pull pin fixing device also comprises a gamma-shaped pull pin main fixing seat 35, wherein a cylinder piston rod fixing hole 350 and a cylinder tip cone locking fixing hole 351 are arranged at equal heights on a cross rod of the pull pin main fixing seat 35, and a shaft sleeve 352 is arranged at the lower part of the pull pin main fixing seat 35; the piston rod of the light front flange fixed cylinder 34 is fixedly connected to the cylinder piston rod fixing hole 350, and the tip cone shaft 31 is connected with the shaft sleeve 352.

The left tip cone 24 is disposed coaxially with the right tip cone 32.

As shown in fig. 4 and 5, the lifting assembly is used for lifting the wire coil, and comprises a lifting motor 40, a reducer 41, a lifting screw rod 42, a lifting copper nut 43 and a lifting transmission support 44; the speed reducer 41 is arranged on a lifting transmission support 44, the lifting motor 40 is in transmission connection with the speed reducer 41, the lifting screw rod 42 is arranged along the plumb line direction and is in transmission connection with the speed reducer 41, and the lifting copper nut 43 is in transmission connection with the lifting screw rod 42; the lifting copper nut 43 is connected with a wire coil lifting bracket 46 through a lifting nut support 45, and a wire coil supporting plate 47 is arranged below the front end of the wire coil lifting bracket 46.

In the embodiment, in the insulating extruder set with the production line speed lower than 170 m/min, 4 poles and 5.5 kilowatts are selected as the main paying-off motor of the active paying-off rack, so that the insulating extruder set can normally run even if the insulating extruder set bears a wire coil with the weight of 3 tons. In a high-speed extruder set with the production line speed higher than 200 m/min, when the weight of a conductor wound on a wire coil reaches more than 500 kg, the conductor is approximately equivalent to a PN630 wire wound copper wire and reaches 2/3 space, the power of a motor is gradually increased until 6 poles reach 7.5 kilowatts, the specification of a single-plate electromagnetic brake is changed from the initial 5 kg to 20 kg, and the functions of wire breakage alarm, shutdown and braking can be realized when the active pay-off rack operates, so that the online operation is controllable.

As can be seen in fig. 5, 2 horizontal rails are arranged on the wire coil lifting bracket 46 in the width direction of the rack 1, and the wire coil pallet 47 is disposed between the 2 horizontal rails by 4 wire coil pallet rollers 470.

As shown in fig. 1 and 4, vertical rails 12 are disposed on the two side columns of the rack 1, and 2 rollers 48 are disposed on two sides of the wire coil lifting bracket 46, respectively, and the rollers 48 are matched with the vertical rails 12.

As can be seen in fig. 4, the lifting nut support 45 comprises upper and lower pallets, and the main beam of the spool lifting bracket 46 is disposed between the upper and lower pallets of the lifting nut support 45 with a clearance fit.

As seen in fig. 7, a pneumatic tip cone locking device is also included for locking the piston rod of the lightweight front flange fixed cylinder 34; the pneumatic tip cone locking device comprises a guide rod 37 fixedly connected with the cylinder tip cone locking fixing hole 351 and a pneumatic tip cone locking fixing seat 38 matched with the guide rod 37; the guide rod 37 is parallel to the piston rod, and the pneumatic tip cone locking fixing seat 38 is fixedly connected with the cylinder fixing plate 33.

As shown in fig. 1 and 7, a main support fixing seat 10 is arranged on the frame 1 along the width direction thereof, and the outer retractable sleeve 3 is movably arranged on the frame 1 through the main support fixing seat 10; 3 screw holes A11 with the tail ends penetrating through the outer surface of the frame are arranged on the main bracket fixing seat 10 at equal distance, a plurality of screw holes B39 are arranged on the opening and closing outer sleeve 3 in a matching way, and one of the screw holes A11 and one of the screw holes B39 are positioned through bolts.

As shown in fig. 6 to 10, a pneumatic tip cone pin pulling device is further included for adjusting the axial distance between the tip cone shaft 31 and the piston rod of the front flange fixed cylinder 34; the pneumatic tip cone pin pulling device comprises a pin pulling seat 360, and a pulling pin 362 is movably arranged in the pin pulling seat 360 through a compression spring 361; an elongated slot 310 is axially arranged on the outer side of the top

conical shaft

31, and 2 deep holes 311 are processed on the top conical shaft 31 on the side corresponding to the elongated slot by 180 degrees; the pneumatic tip cone pin pulling device is connected with the tip cone shaft 31 through the shaft sleeve 352, the positioning bolt is screwed into the long groove 310 outside the tip cone shaft 31 through the shaft sleeve 352, and the shaft sleeve 352 can horizontally move along the axial direction but cannot rotate around the shaft; the pulling pin 362 is movably connected with one of the deep holes 311.

The utility model discloses a concrete operating procedure as follows:

1. wire coil lifting

The wire coil is placed on the wire coil supporting plate 47, the wire coil supporting plate 47 is pushed along the 2 horizontal rails, and the wire coil is subjected to horizontal pre-positioning.

And starting the lifting motor 40, rotating the lifting screw rod 42, forming a transmission pair by the lifting screw rod 42 and the lifting copper nut 43, driving the wire coil lifting bracket 46 to move upwards integrally through the lifting nut bracket 45, and enabling the wire coil to ascend and align with the left tip cone 24 and the right tip cone 32 in height through the matching transmission of the roller 48 and the vertical rail 12.

The two sides of the wire coil lifting bracket 46 are respectively provided with 2 rollers 48 which can roll up and down along the vertical rails 12 on the upright posts on the two sides of the main bracket, and the vertical rails 12 and the upright post surfaces are welded and fixed without finish machining, so that the defect of large gap exists between the contact surfaces of the rollers and the rails. In order to enable the lifting copper nuts 43 to drive the wire coil lifting bracket carrying hundreds of kilograms of wire coils to flexibly rise and fall, the lifting nut bracket 45 and the wire coil lifting bracket 46 cannot form fixed constraint. To solve this problem, the lifting nut bracket 45 is made into an upper and lower pallet type, and the main beam of the wire coil lifting bracket 46 is directly forked, and a total gap of about 5 mm is reserved up and down. After the scheme is adopted, the relative position is not changed, the influence of small displacement of the wire coil lifting bracket 46 in the operation process on the tight fit of the lifting motor and the screw rod part is avoided, and the damage of matched parts is effectively avoided.

2. Wire coil clamp

In the step, the distance between the main transmission assembly and the opening and closing assembly is adjusted according to the width of the wire coil, so that the wire coil is clamped after the left tip cone 24 and the right tip cone 32 are aligned with the center of the wire coil. In the step, the position of the left tip cone is fixed, and the width of the wire coil which can be clamped is determined by the stroke of the right tip cone.

2.1, moving the wire coil along the horizontal direction to align the center of the wire coil with the left tip cone 24, and completing the matching of the dial plate 22 and the dial pin 23.

2.2, the opening and closing component moves axially, so that the right tip cone 32 clamps the center of the wire coil. The cooperation mode of subassembly that opens and shuts includes: A. the retractable outer sleeve 3 is matched

The left side of the upper end of the cylinder fixing plate 33 is fixedly connected with a cylinder front flange through a bolt, and the right side of the cylinder fixing plate is fixedly connected with the locking device fixing seat 38 through a bolt. The lower end opening of the cylinder fixing plate 33 is welded and fixed with the end face of the opening and closing outer sleeve 3 in a flush mode, and therefore the cylinder 34, the cylinder fixing plate 33, the pneumatic tip cone locking fixing seat 38 and the opening and closing outer sleeve 3 move forward and backward together.

The outer surface of the opening and closing outer sleeve 3 is axially provided with a shallow elongated slot, a row of screw holes B39 are equidistantly formed in the slot and are matched with 3M 12 equidistant screw holes in the main bracket fixing seat 10, when an M12 bolt is unscrewed and the opening and closing outer sleeve 3 is moved, the end face of the bolt cannot go out of the outer elongated slot of the sleeve, the side wall of the slot is blocked by the bolt, and the relative rotation movement of the opening and closing outer sleeve 3 and the main bracket fixing seat 10 is prevented.

According to the clamping requirement of the disc tool, the 3M 12 bolts can be directly loosened, the opening and closing outer sleeve 3 is quickly moved for a certain distance into the frame, then the 3M 12 bolts are screwed, and the end face of each bolt enters the screw hole B39 in the outer long groove of the opening and closing outer sleeve 3, so that the opening and closing outer sleeve 3 and the main bracket fixing seat 10 are fixed well. The mode is time-saving, and has high supporting strength and stable force. This is the first step in the adjustment of the opening and closing mechanism.

B. Pneumatic tip cone pin pulling device cooperation

And secondly, adjusting the pneumatic tip cone pin pulling device according to the width of the wire coil to be used, aligning the pneumatic tip cone pin pulling device with one of the 2 deep holes 311 horizontally arranged outside the tip cone shaft 31, screwing the bolt into the hole, and fastening. The 2 deep holes 311 form two gears, the outer gear is selected when the narrow disc is clamped, and the inner gear is selected when the wide disc is clamped. The wide disc has a larger and more stable supporting force because the tip cone shaft 31 extends out of the sleeve to a shorter length than the length of the overhang cone shaft extending out of the sleeve.

C. The right tip cone is accurately positioned by adjusting the stroke of the piston rod of the air cylinder;

and thirdly, accurately positioning the right tip cone by adjusting the stroke of the piston rod of the air cylinder in a mode selected in continuous production when the same specification or disc width difference is small. The stroke of the right tip cone 32 to enter the wire coil hole before the wire coil is loaded or the stroke of the right tip cone 22 drawn out of the wire coil hole during the wire coil withdrawing are within the stroke range of the air cylinder, and can be easily completed only by operating the switch of the air cylinder.

3. After the wire coil is clamped, the pneumatic tip cone is locked

The pneumatic tip cone locking device is used for locking a piston rod of the light front flange fixed type cylinder 34; the pneumatic tip cone locking device comprises a guide rod 37 fixedly connected with the cylinder tip cone locking fixing hole 351 and a pneumatic tip cone locking fixing seat 38 matched with the guide rod 37; the guide rod 37 is parallel to the piston rod, and the pneumatic tip cone locking fixing seat 38 is fixedly connected with the cylinder fixing plate 33. A hand wheel is arranged on the pneumatic tip cone locking fixing seat 38.

After the piston rod of the air cylinder moves to a designated position, a hand wheel of the locking device is rotated to lock the guide rod 37, namely the main fixing seat 35 of the pull pin connected with the guide rod 37 is limited, and the piston rod of the air cylinder connected with the main fixing seat 35 of the pull pin cannot move. Therefore, even if the air pressure in the cylinder is reduced in the production process, the piston rod cannot move backwards due to insufficient pressure, and the phenomenon that the wire coil falls off can be prevented.

4. The elevator assembly is lowered to disengage the chuck from the left 24 and right 32 nosecones and paid off.

The wire outlet assembly comprises a guide roller 50 arranged along the width direction of the rack 1 and a wire outlet roller 51 arranged at the upper end of the rack 1. The core wire released from the wire coil can be directly led out by a guide roller or can enter an outlet roller R groove through the guide roller and is led out after turning 90 degrees.

The present invention is not limited to the above embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essential scope thereof, and still fall into the protection scope of the present invention.

Claims

1. The utility model provides a wire and cable is planer-type initiative pay off rack for extruder, includes frame (1), one side of frame (1) is provided with the subassembly that opens and shuts that being provided with that final drive assembly, offside match, still includes lifting unit and the subassembly of being qualified for the next round of competitions, its characterized in that:

the main transmission assembly is used for clamping the wire coil and providing power for the wire coil to rotate; the belt conveyor comprises a main transmission motor (2), wherein a main shaft of the main transmission motor (2) is provided with a small synchronous belt pulley (20), the belt conveyor also comprises a large synchronous belt pulley (21) arranged on a frame (1), and the small synchronous belt pulley (20) is in transmission connection with the large synchronous belt pulley (21); a main shaft of a large synchronous belt pulley (21) on the inner side of the rack (1) is provided with a dial plate (22) and a dial pin (23), and the large synchronous belt pulley further comprises a left tip cone (24) connected to the free end of the main shaft of the large synchronous belt pulley (21) through a flat key;

the opening and closing assembly is used for being matched with a clamping wire coil; the device comprises an opening and closing outer sleeve (3) arranged on a rack (1), an opening and closing copper sleeve (30) is arranged in an inner cavity of the opening and closing outer sleeve (3), an apex cone shaft (31) is arranged in an inner cavity of the opening and closing copper sleeve (30), and a right apex cone (32) is arranged at the free end of the apex cone shaft (31) through a rolling bearing; the front flange fixing type air cylinder is characterized by further comprising a light front flange fixing type air cylinder (34) fixedly connected with the opening and closing outer sleeve (3) through an air cylinder fixing plate (33), wherein the light front flange fixing type air cylinder (34) is arranged in parallel with the opening and closing outer sleeve (3); the vertical-rectangular-shaped pull pin main fixing seat (35) is further included, a cylinder piston rod fixing hole (350) and a cylinder tip cone locking fixing hole (351) are arranged on a cross rod of the pull pin main fixing seat (35) in equal height, and a shaft sleeve (352) is arranged on the lower portion of the pull pin main fixing seat (35); a piston rod of the light front flange fixed type cylinder (34) is fixedly connected to a cylinder piston rod fixing hole (350), and the top cone shaft (31) is connected with a shaft sleeve (352);

the left tip cone (24) and the right tip cone (32) are coaxially arranged;

the lifting assembly is used for lifting the wire coil and comprises a lifting motor (40), a speed reducer (41), a lifting screw rod (42), a lifting copper nut (43) and a lifting transmission support (44); the speed reducer (41) is arranged on the lifting transmission support (44), the lifting motor (40) is in transmission connection with the speed reducer (41), the lifting screw rod (42) is arranged along the direction of a plumb line and is in transmission connection with the speed reducer (41), and the lifting copper nut (43) is in transmission connection with the lifting screw rod (42); the lifting copper nut (43) is connected with a wire coil lifting bracket (46) through a lifting nut support (45), and a wire coil supporting plate (47) is arranged below the front end of the wire coil lifting bracket (46).

2. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: the main transmission assembly further comprises a single-plate electromagnetic brake.

3. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: 2 horizontal rails are arranged on the wire coil lifting bracket (46) along the width direction of the rack (1), and the wire coil supporting plate (47) is arranged among the 2 horizontal rails through 4 wire coil supporting plate rollers (470).

4. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: vertical rails (12) are arranged on upright columns on two sides of the rack (1), 2 rollers (48) are arranged on two sides of the wire coil lifting bracket (46) respectively, and the rollers (48) are matched with the vertical rails (12).

5. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: the lifting nut support (45) comprises an upper supporting plate and a lower supporting plate, and a main beam of the wire coil lifting bracket (46) is arranged between the upper supporting plate and the lower supporting plate of the lifting nut support (45) and forms clearance fit.

6. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: the device also comprises a pneumatic tip cone locking device which is used for locking a piston rod of the light front flange fixed type cylinder (34); the pneumatic tip cone locking device comprises a guide rod (37) fixedly connected with the cylinder tip cone locking fixing hole (351), and further comprises a pneumatic tip cone locking fixing seat (38) matched with the guide rod (37); the guide rod (37) and the piston rod are arranged in parallel, and the pneumatic tip cone locking fixing seat (38) is fixedly connected with the air cylinder fixing plate (33).

7. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: a main support fixing seat (10) is arranged on the rack (1) along the width direction of the rack, and the opening and closing outer sleeve (3) is movably arranged on the rack (1) through the main support fixing seat (10); the rack is characterized in that 3 screw holes A (11) with tail ends penetrating through the outer surface of the rack are equidistantly formed in the main support fixing seat (10), a plurality of screw holes B (39) are formed in the opening and closing outer sleeve (3) in a matched mode, and one of the screw holes A (11) and one of the screw holes B (39) are located through bolts.

8. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: the wire outlet assembly comprises a guide roller (50) arranged along the width direction of the rack (1) and a wire outlet roller (51) arranged at the upper end of the rack (1).

9. The gantry type active pay-off stand for the wire and cable extruder set as claimed in claim 1, wherein: the pneumatic tip cone pin pulling device is used for adjusting the axial distance between the tip cone shaft (31) and a piston rod of the front flange fixed type air cylinder (34); the pneumatic tip cone pin pulling device comprises a pin pulling seat (360), and a pin pulling (362) is movably arranged in the pin pulling seat (360) through a compression spring (361); an elongated slot (310) is axially formed in the outer side of the top cone shaft (31), and 2 deep holes (311) are machined in the top cone shaft (31) on the side corresponding to the elongated slot by 180 degrees; the pneumatic tip cone pin pulling device is connected with the tip cone shaft (31) through the shaft sleeve (352), and a positioning bolt is screwed into an elongated slot (310) outside the tip cone shaft (31) through the shaft sleeve (352); the pulling pin (362) is movably connected with one of the deep holes (311).