CN212424825U

CN212424825U - Anti-tipping device for upward coil unloading of large-diameter-width-ratio belt reel

Info

Publication number: CN212424825U
Application number: CN202020741903.6U
Authority: CN
Inventors: 闫成琨; 张凯; 计江; 谢磊; 王悦晗; 钱广阔; 孙垂青
Original assignee: China National Heavy Machinery Research Institute Co Ltd
Current assignee: China National Heavy Machinery Research Institute Co Ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-01-29
Anticipated expiration: 2030-05-08

Abstract

The utility model provides an anti-tilt device that is used for big footpath broad ratio tape spool to upwards unload roll, anti-tilt device include the bracket, install three pairs of roller shafting on the bracket, be the power shafting respectively, be used for on unload big roller shafting of big roll and be used for on unload little roller shafting of rolling up, big roller shafting, little roller system are connected with power shafting respectively, the big roller system of power shafting drive lifts and the big roll of centre gripping, or power shafting drives little roller system and lifts little roll. The utility model discloses utilize four L shapes to support the swing arm, carry out the centre gripping to rolling up four points in lower part, form comparatively stable clamping structure, receive the disturbance when the roll coil and have the tendency of tumbling, because the roll coil focus is only slightly skew central line this moment, too big inclination does not appear in the roll coil, therefore the moment of tumbling has not become very big time yet, is overcome by the restraint moment that the swing arm formed is supported to the L shape promptly to control the roll coil in very little angle range of tumbling, keep erectting stable state.

Description

Anti-tipping device for upward coil unloading of large-diameter-width-ratio belt reel

Technical Field

The utility model relates to an unload in the axial of metal strip coil of strip production and roll up auxiliary device, concretely relates to an anti-tilt device that is used for big footpath aspect ratio tape spool to upwards unload roll up.

Background

In the production of the metal strip coil, the coil loading and unloading process is a necessary link, and the coil loading and unloading directions are divided into two types of coil unloading in the radial direction and coil unloading in the axial direction according to different winding drum forms of an uncoiler and a coiler. The method is characterized in that a coil conveying path of a coil conveying trolley is always in the axial direction of a vertically placed metal coil, the coil is conveyed to the front of a winding drum of the single-cantilever uncoiler or the coiling machine, the coil is lifted to the position where the central axis of an inner hole of a winding core is coaxial with the winding drum, then the coil conveying trolley is driven to enable the coil to be sleeved on the winding drum, and then the coil conveying trolley descends and exits from the winding drum area to finish the axial coil conveying process; the axial coil-unloading process is opposite to the coil-loading process.

According to production experience, in the transportation of the coil with the diameter-width ratio (the ratio of the outer diameter to the width of the coil) less than 5, the coil is stable in the normal disturbance range in the transportation process, and can be vertically placed on a coil transporting trolley bracket to directly carry out coil loading and unloading transportation; however, when the aspect ratio is larger than 5, the standing stability of the coil starts to deteriorate, and the coil can tip over to both sides under normal disturbance, and the current common solutions are:

(1) the steel pipes are manually inserted at two sides of the band coil, so that the blocking effect is achieved.

The method can not deal with the production tasks with more width specifications, the manual operation is very inconvenient, and particularly, after the coil is sleeved on the winding drum, the steel pipe is manually taken out from the narrow space between the coil and the reduction gearbox, so that accidents are easy to happen;

(2) the manufacturing precision of the trolley body and the track is comprehensively improved, the number of the sensors is increased, and the control precision of the electric and hydraulic driving systems is improved, so that the running stability of the coil conveying trolley is further improved.

The method needs to invest in higher cost, has higher requirements on the shape regularity of the coil, but has weak external interference resistance, and is easy to tip over when the track is subjected to foreign matters, unexpected shutdown or manual misoperation and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides an anti-overturning device that is used for big footpath aspect ratio tape spool to upwards unload roll to overcome above-mentioned technical defect.

In order to solve the technical problem, the utility model provides an anti-overturning device for upward coil unloading of a large-diameter-width-ratio belt reel, which comprises a bracket, wherein three pairs of roller systems are arranged on the bracket, namely a power shaft system, a large roller system for upward coil unloading and a small roller system for upward coil unloading, the large roller system and the small roller system are respectively connected with the power shaft system, and the power shaft system drives the large roller system to lift and clamp the large coil or drives the small roller system to lift the small coil;

wherein, the large roll is a roll with the diameter-width ratio more than 5, and the small roll is a roll with the diameter-width ratio less than 5.

Furthermore, the large roller shaft system is composed of two sets of same structures, each set of structure at least comprises a large carrier roller and a first mandrel, the first mandrel is inserted into the large carrier roller through a pair of bearings, and the large carrier roller is an idler roller;

two shaft ends of the first mandrel respectively extend out of the large carrier roller, the extending part is supported on the bracket through a sliding bearing, the shaft end of the first mandrel is suspended outside the bracket through the sliding bearing, a sliding shaft sleeve penetrates through the suspending part, a swing arm base penetrates through the sliding shaft sleeve, the swing arm base and the sliding shaft sleeve are fixed into a whole through a set screw, and the head of the set screw penetrates through the sliding shaft sleeve and is in sliding connection with a long strip-shaped sliding groove formed in the shaft wall of the first mandrel;

each swing arm base is provided with an L-shaped supporting swing arm through a bolt, the vertical section of each L-shaped supporting swing arm is fixedly connected to the swing arm base, the end face of the horizontal section is welded with a flat plate, the surface of the flat plate is fixedly connected with a soft pad, and the soft pads on two sides of the same core shaft I are opposite and parallel;

a double-output oil cylinder parallel to the large carrier roller is arranged right below the large carrier roller and fixed on the bracket through two supports, rod heads of piston rods at two ends of the double-output oil cylinder are respectively connected with the handle end of the sliding handle at the same side through a sliding pin shaft, and the sliding handle is sleeved in an annular clamping groove formed in the outer annular surface of the swing arm base;

a driven sector gear sleeved on the first mandrel is arranged between the end face of the large carrier roller and the sliding bearing, the driven sector gear is fixed on the first mandrel through a second set screw, and the driven sector gear is connected with a power shaft system.

Preferably, the sliding handle comprises a circular part and a handle part, the circular part is formed by splicing two semicircular rings and is sleeved in an annular clamping groove of the swing arm base, one end of the handle part is fixedly connected to the outer wall of the circular part, and the other end of the handle part is provided with a long hole which is connected with a rod head of a piston rod of the double-output oil cylinder through a sliding pin shaft.

Preferably, the first mandrel and the sliding shaft sleeve are in clearance fit and can slide relatively; the sliding handle and the swing arm base are in clearance fit and can rotate independently.

Furthermore, the power shaft system is composed of two sets of same structures, each set of structure at least comprises a shaft parallel to the first mandrel, the shafts are arranged on the bracket through flange sliding bearings on two sides, and the transmission side of each shaft is inserted with the shaft of the swing hydraulic motor through a small hole with a key groove;

two ends of the shaft are respectively and fixedly sleeved with a driving sector gear, and the driving sector gear and the driven sector gear on the same side form a pair of gear pairs.

Preferably, the driving sector gear includes a swingable base portion having a rectangular flat plate shape, a center of one short-side end portion of the base portion being for mounting the small roller train, the other short-side end portion extending obliquely upward to form a sector portion, a center of the sector portion being a shaft hole through which the shaft passes, and a sector edge of the sector portion being a gear tooth engaged with the driven sector gear.

Preferably, four key slots are formed in the bracket, a long key used for limiting the swinging position of the base is installed in each key slot, the long key is fixed to the bracket through a bolt, and the long key is located below the driving sector gear.

Furthermore, the small roller shaft system is composed of two sets of same structures, each set of structure at least comprises a small carrier roller and a second mandrel, the second mandrel is inserted into the small carrier roller through a pair of bearings, and the small carrier roller is an idler roller;

two shaft ends of the second mandrel respectively extend out of the small carrier roller, the extending part is fixedly inserted into the base part of the driving sector gear through the third set screw, and the second mandrel, the first mandrel and the shaft are parallel to each other.

Preferably, the maximum distance between two opposite cushions at two ends of the same mandrel I is 50-80 mm larger than the maximum width of the tape roll, and the minimum distance is 10-20 mm smaller than the minimum width of the tape roll;

the height of the L-shaped supporting swing arm is 0.15-0.25 times of the maximum radius of the tape roll.

The utility model discloses still protected the method that the roll-up was unloaded on utilizing anti-tilt device, including following step:

judging the diameter-width ratio of the tape roll:

if the radial-to-width ratio is larger than 5, executing the step A;

if the radial-to-width ratio is less than 5, executing the step B;

installing an anti-tipping device for upward coil unloading of a large-diameter-width-ratio belt reel on a coil conveying trolley;

step A:

when the coil is wound, the coil conveying trolley is moved to the position of a coil storage saddle, two pairs of L-shaped supporting swing arms are all lifted, each L-shaped supporting swing arm is positioned at the outermost side of the first mandrel, the coil conveying trolley is lifted, a large coil on the coil conveying trolley is contacted with a large carrier roller, the large carrier roller lifts the large coil, piston rods at two ends of a double-output oil cylinder shrink to drive the two opposite L-shaped supporting swing arms to simultaneously draw close to the coil, when a cushion is attached to the side face of the coil, the contraction of the double-output oil cylinder is stopped, the coil is kept to be stably clamped by the two pairs of L-shaped supporting swing arms, then the coil conveying trolley is driven to be close to the coiling machine and perform an axis aligning action until the core of the coil is coaxial with the coiling block of the coiling machine, then the coil conveying trolley is driven to sleeve the coil on the coiling block, each double-output oil cylinder is driven to extend, the movable coil conveying trolley exits from the winding drum area to finish coiling;

the coil stripping process is the reverse operation of the coil loading process;

and B: installing an anti-tipping device for upward coil unloading of a large-diameter-width-ratio belt reel on a coil conveying trolley;

when in reeling, the reeling trolley is moved to a saddle for storing the reel, the L-shaped supporting swing arm is dropped, the swinging hydraulic motor is driven to enable the small carrier roller to rise and keep in a rising state, the reeling trolley is raised to enable the small reel on the reeling trolley to be in contact with the small carrier roller, the small carrier roller lifts the small reel, the reeling trolley is driven to be close to the reeling machine and perform countershaft action until the reeling core of the reel is coaxial with the reeling drum of the reeling machine, then the reeling trolley is driven to sleeve the reel on the reeling drum, the reeling trolley descends to enable the reel to be separated from the small carrier roller, the swinging hydraulic motor is driven to drop the small carrier roller, and the reeling trolley is moved until the reeling trolley is withdrawn from the reeling drum area to finish reeling;

the unwinding process is the reverse operation of the winding process.

The utility model has the advantages as follows:

(1) through both sides altogether four places L shape support swing arm carry out the centre gripping to big footpath aspect ratio coil of strip, strengthened big footpath aspect ratio coil of strip transportation's erect stability and anti external disturbance ability greatly to reach the effect that prevents the coil of strip and overturn, this kind of mode is more reliable than the method through improving manufacturing accuracy and control accuracy comprehensively, and the interference killing feature is stronger, and the cost is lower.

(2) The large and small carrier rollers are provided, the large coil and the small coil can be respectively subjected to coil loading and coil unloading operation, the small carrier rollers can also be used for performing sleeve loading and sleeve unloading operation on the sleeve, the small carrier rollers can also be used for replacing coiling machine compression rollers, the head and the tail of the belt are subjected to pressure head operation, multiple coil loading and unloading auxiliary functions are integrated, and the large and small carrier rollers have flexible and wide application occasions.

(3) The whole process is controlled by a hydraulic system and an electric system, and an operator does not need to approach the coil to insert the steel pipe, so that the safety risk is reduced, and the production efficiency is improved; because personnel do not need to carry out the operation beside the machine, the full automation of the upward coil unloading mode of the large-diameter width ratio tape reel can be realized only by arranging the sensor at a proper position.

In order to make the above and other objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic structural view of an anti-rollover device for upward unwinding of a large-diameter-to-width ratio tape spool.

Fig. 2 is a schematic side view (P direction in fig. 1).

Fig. 3 is a schematic plan view (direction K in fig. 1).

Fig. 4 is a schematic structural diagram of the L-shaped supporting swing arm clamping the large roll.

Fig. 5 is a schematic view of a small idler lifting a small roll or sleeve.

Fig. 6 is a schematic view of the roll preventing device in cooperation with the carriage for holding the roll of tape.

Description of reference numerals:

a large roller shaft system: 1. a large carrier roller; 2. a first mandrel; 3. a sliding bearing; 4. a bracket; 5. a sliding shaft sleeve; 6. a swing arm base; 7. a first set screw; 8. a strip-shaped chute; 9. a sliding handle; 10. sliding the pin shaft; 11. a double-output oil cylinder; 12. a support; an L-shaped supporting swing arm; 14. a soft cushion; 15. a second set screw; 16. a driven sector gear;

a power shaft system: 17. a driving sector gear; 18. a shaft; 19. a flange sliding bearing; 20. a swing hydraulic motor;

a small roll shaft system: 21. a small carrier roller; 22. a second mandrel; 23. a third set screw is tightened;

24. a long bond; 25. and (4) a coil conveying trolley.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

It should be noted that, in the present invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the roll-over preventing device for upward roll-off of the large-diameter width ratio belt reel described in this specification.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, which, however, may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments presented in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.

Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

The first embodiment:

the utility model discloses a first embodiment relates to an anti-overturning device for upward coil unloading of a large-diameter-width-ratio belt reel, which comprises a bracket 4, wherein three pairs of roller systems are arranged on the bracket 4, namely a power shaft system, a large roller system for upward coil unloading and a small roller system for upward coil unloading, the large roller system and the small roller system are respectively connected with the power shaft system, the power shaft system drives the large roller system to lift and clamp the large coil, or the power shaft system drives the small roller system to lift the small coil;

The anti-tipping device protected by the embodiment comprises two sets of large and small carrier rollers, can be used for respectively carrying out coil loading and coil unloading operations on a large coil and a small coil, can also be used for carrying out sleeve loading and coil unloading operations on a sleeve by using a small roller system, can also be used for replacing a press roller of a coiling machine to carry out pressure head operation on a belt head tail, integrates multiple coil loading and coil unloading auxiliary functions, and has flexible and wide application occasions.

Second embodiment:

the embodiment relates to an anti-tipping device for upward coil unloading of a large-diameter-to-width-ratio belt reel, which comprises a bracket 4, wherein three pairs of roller systems are arranged on the bracket 4, namely a power shaft system, a large roller system for upward coil unloading and a small roller system for upward coil unloading, the large roller system and the small roller system are respectively connected with the power shaft system, the power shaft system drives the large roller system to lift and clamp a large coil, or the power shaft system drives the small roller system to lift a small coil;

As shown in fig. 3, the large roller shaft system is composed of two sets of same structures, each set of structure at least comprises a large carrier roller 1 and a mandrel I2, the mandrel I2 is inserted into the large carrier roller 1 through a pair of bearings, the large carrier roller 1 is an idler roller, the roller can freely rotate along with external force, and the mandrel I2 is not driven by the external force;

referring to fig. 1, two shaft ends of a first mandrel 2 respectively extend out of a large carrier roller 1, the extending part is supported on a bracket 4 through a sliding bearing 3, the shaft end of the first mandrel 2 passes through the sliding bearing 3 and is suspended outside the bracket 4, a sliding shaft sleeve 5 is sleeved on the suspending part in a penetrating manner, a swing arm base 6 is sleeved on the sliding shaft sleeve 5 in a penetrating manner, the swing arm base 6 and the sliding shaft sleeve 5 are fixed into a whole through a set screw I7, and the head part of the set screw I7 penetrates through the sliding shaft sleeve 5 and is in sliding connection with a long strip-shaped sliding chute 8 arranged on the shaft;

swing arm base 6 and slip axle sleeve 5 connect as an organic wholely through holding screw 7, and holding screw 7 can drive swing arm base 6 and slip axle sleeve 5 and make linear motion along rectangular shape spout 8 on dabber 2.

Each swing arm base 6 is provided with an L-shaped supporting swing arm 13 through a bolt, the vertical section of each L-shaped supporting swing arm 13 is fixedly connected to the swing arm base 6, the end face of the horizontal section is welded with a flat plate, the surface of the flat plate is fixedly connected with a cushion 14, and the cushions 14 on the two sides of the same mandrel I2 are opposite and parallel;

referring to fig. 1, a double-output oil cylinder 11 parallel to a large carrier roller 1 is arranged right below the large carrier roller, the double-output oil cylinder 11 is fixed to a bracket 4 through two brackets 12, rod heads of piston rods at two ends of the double-output oil cylinder 11 are respectively connected with a handle end of a sliding handle 9 at the same side through a sliding pin shaft 10, and the sliding handle 9 is sleeved in an annular clamping groove formed in the outer annular surface of a swing arm base 6;

as shown in fig. 1 and 2, a driven sector gear 16 sleeved on the mandrel one 2 is arranged between the end surface of the large carrier roller 1 and the sliding bearing 3, the driven sector gear 16 is fixed on the mandrel one 2 through a set screw two 15, and the driven sector gear 16 is connected with a power shaft system.

The working principle of the large roller shaft system is as follows:

four L-shaped supporting swing arms 13 are utilized to clamp the lower part of the strip coil at four points to form a stable clamping structure, when the strip coil is disturbed and has a tilting tendency, the gravity center of the strip coil slightly deviates from the central line at the moment, and the strip coil does not have an overlarge tilting angle, so that the tilting moment is not very large, namely, the tilting moment is overcome by the restraining moment formed by the L-shaped supporting swing arms 13, and the strip coil is controlled in a very small tilting angle range to keep a vertical stable state.

The working process of the large roller shaft system is as follows:

rotating: the power shaft system drives the driven sector gear 16 to rotate, the driven sector gear 16 drives the mandrel I2 to synchronously rotate, and the mandrel I2 drives the swing arm base 6 and the L-shaped supporting swing arm 13 to synchronously rotate to form a group of rotating systems;

linear motion: piston rods at two ends of the double-output oil cylinder 11 extend or contract, the piston rods push the sliding handles 9, and the sliding handles 9 drive the swing arm base 6 and the L-shaped supporting swing arms 13 to do linear motion along the axial direction of the mandrel I2.

The double-output oil cylinder 11 is provided with two piston rods (oil cylinder rods), the middle of the double-output oil cylinder shares a plug cavity, and the rod ends of the double-output oil cylinder are respectively connected with the handle end of the sliding handle 9 through sliding pin shafts 10. When hydraulic oil is introduced into the plug cavity, the two oil cylinder rods can extend out together to further push the left L-shaped supporting swing arm 13 and the right L-shaped supporting swing arm 13 to be opened together.

The working process of the large roll shafting in the coil loading and unloading process is as follows:

referring to fig. 4, during reeling, two pairs of L-shaped supporting swing arms 13 are all lifted, each L-shaped supporting swing arm 13 is positioned at the outermost side of a mandrel I2, a reeling trolley 25 is lifted, a large reel on the reeling trolley 25 is in contact with a large carrier roller 1, the large carrier roller 1 lifts the large reel, piston rods at two ends of a double-output oil cylinder 11 contract to drive two opposite L-shaped supporting swing arms 13 to simultaneously draw close to a reel, when a cushion 14 is attached to the side surface of the reel, the contraction of the double-output oil cylinder 11 is stopped, the reel is stably clamped by the two pairs of L-shaped supporting swing arms 13, then the reeling trolley 25 is driven to approach the reeling machine and perform an axial motion until a reeling core of the reel is coaxial with a reeling drum of the reeling machine, then the reeling trolley 25 is driven to sleeve the reel on the reeling drum, each double-output oil cylinder 11 is driven to extend the two piston rods, all the L-shaped, separating the coil from the large carrier roller 1, driving the swing hydraulic motor 20 to drop the L-shaped support swing arm 13, moving the coil conveying trolley 25 to exit from the winding drum area, and finishing the coiling;

the unwinding process is the reverse operation of the winding process.

The third embodiment:

In order to facilitate installation, the sliding handle 9 comprises a circular ring part and a handle part, the circular ring part is formed by splicing two semicircular rings and is sleeved in an annular clamping groove of the swing arm base 6, one end of the handle part is fixedly connected to the outer wall of the circular ring part, the other end of the handle part is provided with a long hole, and the long hole is connected with a rod head of a piston rod of the double-output oil cylinder 11 through a sliding pin shaft 10.

The first mandrel 2 and the sliding shaft sleeve 5 are in clearance fit and can slide relatively; the sliding handle 9 and the swing arm base 6 are in clearance fit and can rotate independently.

Because the sliding handle 9 and the swing arm base 6 are in clearance fit and can rotate independently, the sliding handle 9 is blocked by the oil cylinder 11 and does not rotate along with the mandrel I2, the sliding shaft sleeve 5 and the swing arm base 6, and only when the oil cylinder 11 pushes the sliding handle 9, the swing arm base 6 and the L-shaped supporting swing arm 13 can be driven to do linear motion along the axial direction of the mandrel 2.

When the coil of strip has the tendency of tipping, huge dead weight can make the tipping moment bigger, and the force acting on the L-shaped supporting swing arm 13 will also be very big, in order to solve this problem, this embodiment has installed the hydraulic lock on the oil circuit of the double-output cylinder 11, make L-shaped supporting swing arm 13 can fix in the original position under the huge external force, keep the coil of strip erect the state.

Fourth embodiment:

on the basis of the second embodiment, as shown in fig. 3, the power shafting is composed of two sets of same structures, each set of structure at least comprises a shaft 18 parallel to the first mandrel 2, the shafts 18 are installed on the bracket 4 through flange sliding bearings 19 on two sides, and the transmission side of each shaft 18 is inserted into the shaft extension of the swing hydraulic motor 20 through a small hole with a key slot;

the driving side and the operating side of the anti-tipping device are seen in fig. 1, 3 and 4.

Two ends of the shaft 18 are respectively and fixedly sleeved with a driving sector gear 17, and the driving sector gear 17 and the driven sector gear 16 on the same side form a pair of gear pairs.

Swing hydraulic motor 20 drives axle 18 and rotates, and axle 18 drives initiative sector gear 17 and rotates, and initiative sector gear 17 drives driven sector gear 16 and rotates, and driven sector gear 16 drives dabber one 2 synchronous rotation, and dabber one 2 drives swing arm base 6 and L shape and supports swing arm 13 synchronous rotation, realizes the rising or falling of L shape support swing arm 13.

Fifth embodiment:

in addition to the fourth embodiment, as shown in fig. 2 or 5, the driving sector gear 17 includes a swingable base portion having a rectangular flat plate shape, a center of one short-side end portion of the base portion being used for mounting the small roller gear train, and the other short-side end portion extending obliquely upward to form a sector portion, a center of the sector portion being a shaft hole through which the shaft 18 passes, and a sector edge of the sector portion being a gear tooth engaged with the driven sector gear 16.

Four key slots are formed in the bracket 4, a long key 24 used for limiting the swinging position of the base is installed in each key slot, the long key 24 is fixed on the bracket 4 through a bolt, and the long key 24 is located below the driving sector gear 17.

As shown in fig. 2 and 3, the small roller shaft system is composed of two sets of same structures, each set of structure at least comprises a small carrier roller 21 and a second mandrel 22, the second mandrel 22 is inserted into the small carrier roller 21 through a pair of bearings, and the small carrier roller 21 is an idler roller;

two shaft ends of the second mandrel 22 respectively extend out of the small carrier roller 21, the extending part is fixedly inserted into the base part of the driving sector gear 17 through a third set screw 23, and the second mandrel 22, the first mandrel 2 and the shaft 18 are parallel to each other.

When the driving sector gear 17 swings down, the driving sector gear is stopped by the long key 24 and does not swing any more, so that the small carrier roller 21 and the L-shaped supporting swing arm 13 keep fixed positions, as shown in FIG. 2.

The anti-tipping function of the L-shaped supporting swing arm 13 and the small roll lifting function of the small carrier roller 21 cannot work simultaneously, the characteristic that the steering directions of the meshing gears are opposite is utilized, only one rotating system is used for two sets of swing mechanisms, and the structure is more compact.

Specifically, the swing hydraulic motor 20 drives the shaft 18 to rotate, the shaft 18 drives the driving sector gear 17 to rotate, the driving sector gear 17 drives the driven sector gear 16 to rotate, the driven sector gear 16 drives the mandrel one 2 to synchronously rotate, the mandrel one 2 drives the swing arm base 6 and the L-shaped support swing arm 13 to synchronously rotate, and the L-shaped support swing arm 13 is lifted or fallen, referring to fig. 2, when the L-shaped support swing arm 13 is lifted, the driving sector gear 17 is in the position shown in fig. 2, that is, the base of the driving sector gear 17 is limited to the long key 24, and the small carrier roller 21 is in a falling state, so that when the large carrier roller 1 lifts a large roll, the interference of the small carrier roller 21 is avoided; or, referring to fig. 5, the swing hydraulic motor 20 drives the shaft 18 to rotate, the shaft 18 drives the driving sector gear 17 to rotate, the driving sector gear 17 drives the second mandrel 22 to rotate, the second mandrel 22 drives the small carrier roller 21 to rise to the position shown in fig. 5, and the L-shaped support swing arm 13 is in a falling state at this time, so that the lifting of the small roll is prevented from being interfered.

Sixth embodiment:

the stroke of the L-shaped supporting swing arm 13 on the mandrel I2 is controlled in the following range in the embodiment: the maximum distance between two opposite soft cushions 14 at the two ends of the same mandrel I2 is 50 mm-80 mm larger than the maximum width of the coil, namely the distance between the surfaces of the flat soft cushions 14 of the L-shaped supporting swing arm 13 at the outermost end is 50 mm-80 mm larger than the maximum width specification of the coil, and a small swing allowance and deviation during coil taking can be reserved; the minimum distance between two opposite soft pads 14 at two ends of the same mandrel I2 is 10 mm-20 mm smaller than the minimum width of the coil, namely, the minimum distance is 10 mm-20 mm smaller than the minimum width of the coil at the innermost end, so that the clamping effect on the coil with the minimum width can be ensured;

the height of the L-shaped supporting swing arm 13 is 0.15-0.25 times of the maximum radius of the tape roll, and the specific reasons are as follows:

if the height of the L-shaped supporting swing arm 13 is too low, the clamping effect on the coil is weakened, and the anti-tipping capability is reduced; if the height of the L-shaped supporting swing arm 13 is too high, when the small carrier roller 21 is erected and the L-shaped supporting swing arm 13 is laid down, the distance between the large carrier rollers 1 becomes too wide in order to prevent mutual interference of the swing arms at two sides, so that the occupied space of the device is too large, the whole weight is increased, and the economical efficiency is poor.

The seventh embodiment:

the embodiment provides a method for unloading rolls by using an anti-tipping device, which comprises the following steps:

judging the diameter-width ratio of the tape roll:

if the radial-to-width ratio is larger than 5, executing the step A;

if the radial-to-width ratio is less than 5, executing the step B;

step A:

installing an anti-tipping device for upward coil unloading of a large-diameter-width-ratio belt reel on the coil conveying trolley 25;

when winding up, moving the winding trolley 25 to the coil storage saddle, raising all the two pairs of L-shaped supporting swing arms 13 to enable each L-shaped supporting swing arm 13 to be positioned at the outermost side of the mandrel I2, raising the winding trolley 25 to enable a large coil on the winding trolley 25 to be in contact with the large carrier roller 1, lifting the large coil by the large carrier roller 1, enabling piston rods at two ends of the double-output oil cylinders 11 to contract to drive the two opposite L-shaped supporting swing arms 13 to simultaneously draw close to a coil, stopping the contraction of the double-output oil cylinders 11 when the cushion 14 is attached to the side face of the coil, keeping the coil stably clamped by the two pairs of L-shaped supporting swing arms 13, then driving the winding trolley 25 to approach the coiler and perform axis-alignment action until the core of the coil is coaxial with the coiling block of the coiler, driving the winding trolley 25 to sleeve the coil on the coiling block, driving each double-output oil cylinder 11 to extend out the two piston rods, the coil conveying trolley 25 descends to separate the coil from the large carrier roller 1, the swing hydraulic motor 20 is driven to drop the L-shaped support swing arm 13, and the coil conveying trolley 25 is moved to exit from the winding drum area to finish the coiling;

and B: installing an anti-tipping device for upward coil unloading of a large-diameter-width-ratio belt reel on the coil conveying trolley 25;

when in coiling, the coil conveying trolley 25 is moved to a position for storing a coil saddle, the L-shaped support swing arm 13 is dropped down, the swing hydraulic motor 20 is driven to enable the small carrier roller 21 to be lifted and kept in a lifted state, the coil conveying trolley 25 is lifted, the small coil on the coil conveying trolley 25 is enabled to be in contact with the small carrier roller 21, the small carrier roller 21 lifts the small coil, the coil conveying trolley 25 is driven to be close to the coiling machine and perform an axis aligning action until a coil core of the coil is coaxial with a coiling block of the coiling machine, the coil conveying trolley 25 is driven to sleeve the coil on the coiling block, the coil conveying trolley 25 descends to enable the coil to be separated from the small carrier roller 21, and the coil conveying trolley 25 is moved until the coil withdrawing area;

the unwinding process is the reverse operation of the winding process.

The above process can be seen in fig. 1 to 6.

The sleeve can be used as a small roll with a small outer diameter, and the sleeve loading and unloading operation is the same as that of the small roll.

The anti-tipping device in the embodiment comprises a bracket 4, wherein three pairs of roller shafts are arranged on the bracket 4, namely a power shaft system, a large roller shaft system for loading and unloading large rolls and a small roller shaft system for loading and unloading small rolls, the large roller shaft system and the small roller shaft system are respectively connected with the power shaft system, and the power shaft system drives the large roller shaft system to lift and clamp the large rolls or drives the small roller shaft system to lift the small rolls;

The large roller shaft system comprises two sets of same structures, each set of structure at least comprises a large carrier roller 1 and a mandrel I2, the mandrel I2 is inserted into the large carrier roller 1 through a pair of bearings, and the large carrier roller 1 is an idler roller;

two shaft ends of a first mandrel 2 respectively extend out of a large carrier roller 1, the extending part is supported on a bracket 4 through a sliding bearing 3, the shaft ends of the first mandrel 2 pass through the sliding bearing 3 to be suspended outside the bracket 4, a sliding shaft sleeve 5 is sleeved on the suspended part in a penetrating manner, a swing arm base 6 is sleeved on the sliding shaft sleeve 5 in a penetrating manner, the swing arm base 6 and the sliding shaft sleeve 5 are fixed into a whole through a set screw I7, and the head part of the set screw I7 penetrates through the sliding shaft sleeve 5 to be in sliding connection with a long strip-shaped sliding chute 8 arranged on the shaft wall of;

a double-output oil cylinder 11 parallel to the large carrier roller 1 is arranged right below the large carrier roller, the double-output oil cylinder 11 is fixed on the bracket 4 through two brackets 12, rod heads of piston rods at two ends of the double-output oil cylinder 11 are respectively connected with the handle end of a sliding handle 9 at the same side through a sliding pin shaft 10, and the sliding handle 9 is sleeved in an annular clamping groove formed in the outer annular surface of the swing arm base 6;

a driven sector gear 16 sleeved on the mandrel I2 is arranged between the end face of the large carrier roller 1 and the sliding bearing 3, the driven sector gear 16 is fixed on the mandrel I2 through a set screw II 15, and the driven sector gear 16 is connected with a power shaft system.

The sliding handle 9 comprises a circular part and a handle part, the circular part is formed by splicing two semicircular rings and is sleeved in an annular clamping groove of the swing arm base 6, one end of the handle part is fixedly connected to the outer wall of the circular part, the other end of the handle part is provided with a long hole, and the long hole is connected with a rod head of a piston rod of the double-output oil cylinder 11 through a sliding pin shaft 10.

The power shaft system is composed of two sets of same structures, each set of structure at least comprises a shaft 18 parallel to the mandrel I2, the shaft 18 is arranged on the bracket 4 through flange sliding bearings 19 on two sides, and the transmission side of each shaft 18 is inserted with the shaft extension of the swing hydraulic motor 20 through a small hole with a key groove;

The driving sector gear 17 includes a swingable base portion having a rectangular flat plate shape, the center of one short-side end portion of the base portion being used for mounting a small roller train, the other short-side end portion extending obliquely upward to form a sector portion, the center of the sector portion being a shaft hole through which the shaft 18 passes, and the sector edge of the sector portion being a gear tooth engaged with the driven sector gear 16.

The small roller shaft system is composed of two sets of same structures, each set of structure at least comprises a small carrier roller 21 and a mandrel II 22, the mandrel II 22 is inserted into the small carrier roller 21 through a pair of bearings, and the small carrier roller 21 is an idler roller;

The maximum distance between two opposite soft pads 14 at the two ends of the same mandrel I2 is 50-80 mm larger than the maximum width of the coil, and the minimum distance is 10-20 mm smaller than the minimum width of the coil;

the height of the L-shaped supporting swing arm 13 is 0.15-0.25 times of the maximum radius of the tape roll.

The utility model discloses utilize four L shapes to support the swing arm, carry out the centre gripping to rolling up four points in lower part, form comparatively stable clamping structure, receive the disturbance when the roll coil and have the tendency of tumbling, because the roll coil focus is only slightly skew central line this moment, too big inclination does not appear in the roll coil, therefore the moment of tumbling has not become very big time yet, is overcome by the restraint moment that the swing arm formed is supported to the L shape promptly to control the roll coil in very little angle range of tumbling, keep erectting stable state.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims

1. A anti-overturning device that is used for big footpath aspect ratio tape spool to coil up unloads, includes bracket (4), its characterized in that: the bracket (4) is provided with three pairs of roller systems which are respectively a power shaft system, a large roller system for loading and unloading large rolls and a small roller system for loading and unloading small rolls, the large roller system and the small roller system are respectively connected with the power shaft system, and the power shaft system drives the large roller system to lift and clamp the large rolls or drives the small roller system to lift the small rolls;

2. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 1, characterized in that: the large roller shaft system comprises two sets of same structures, each set of structure at least comprises a large carrier roller (1) and a mandrel I (2), the mandrel I (2) is inserted into the large carrier roller (1) through a pair of bearings, and the large carrier roller (1) is an idler roller;

the two shaft ends of the first mandrel (2) respectively extend out of the large carrier roller (1), the extending parts are supported on the bracket (4) through the sliding bearings (3), the shaft ends of the first mandrel (2) penetrate through the sliding bearings (3) to be suspended outside the bracket (4), the suspended parts are sleeved with the sliding shaft sleeves (5), the sliding shaft sleeves (5) are sleeved with the swing arm base (6), the swing arm base (6) and the sliding shaft sleeves (5) are fixed into a whole through the first set screw (7), and the head of the first set screw (7) penetrates through the sliding shaft sleeves (5) to be in sliding connection with the long strip-shaped sliding groove (8) formed in the shaft wall of the first mandrel (2);

each swing arm base (6) is provided with an L-shaped supporting swing arm (13) through a bolt, the vertical section of each L-shaped supporting swing arm (13) is fixedly connected to the swing arm base (6), the end face of the horizontal section is welded with a flat plate, the surface of the flat plate is fixedly connected with a cushion (14), and the cushions (14) on the two sides of the same mandrel I (2) are opposite and parallel;

a double-output oil cylinder (11) parallel to the large carrier roller (1) is arranged right below the large carrier roller, the double-output oil cylinder (11) is fixed on the bracket (4) through two brackets (12), rod heads of piston rods at two ends of the double-output oil cylinder (11) are respectively connected with the handle end of a sliding handle (9) at the same side through a sliding pin shaft (10), and the sliding handle (9) is sleeved in an annular clamping groove formed in the outer annular surface of the swing arm base (6);

a driven sector gear (16) sleeved on the first mandrel (2) is arranged between the end face of the large carrier roller (1) and the sliding bearing (3), the driven sector gear (16) is fixed on the first mandrel (2) through a second set screw (15), and the driven sector gear (16) is connected with a power shaft system.

3. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 2, characterized in that: the sliding handle (9) comprises a circular ring part and a handle part, the circular ring part is formed by splicing two semicircular rings and is sleeved in an annular clamping groove of the swing arm base (6), one end of the handle part is fixedly connected to the outer wall of the circular ring part, the other end of the handle part is provided with a long hole, and the long hole is connected with a rod head of a piston rod of the double-output oil cylinder (11) through a sliding pin shaft (10).

4. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 2, characterized in that: the first mandrel (2) and the sliding shaft sleeve (5) are in clearance fit and can slide relatively; the sliding handle (9) and the swing arm base (6) are in clearance fit and can rotate independently.

5. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 2, characterized in that: the power shaft system is composed of two sets of same structures, each set of structure at least comprises a shaft (18) parallel to the first mandrel (2), the shafts (18) are arranged on the bracket (4) through flange sliding bearings (19) on two sides, and the transmission side of each shaft (18) is inserted with the shaft of the swing hydraulic motor (20) through a small hole with a key slot;

two ends of the shaft (18) are respectively and fixedly sleeved with a driving sector gear (17), and the driving sector gear (17) and the driven sector gear (16) on the same side form a pair of gear pairs.

6. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 5, characterized in that: the driving sector gear (17) comprises a base part which is in a rectangular flat plate shape and can swing, the center of one short-side end part of the base part is used for installing a small roller shaft system, the other short-side end part of the base part extends upwards in an inclined mode to form a sector part, the center of the sector part is a shaft hole for a shaft (18) to penetrate through, and the sector edge of the sector part is gear teeth meshed with the driven sector gear (16).

7. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 6, characterized in that: four key grooves are formed in the bracket (4), a long key (24) used for limiting the swinging position of the base is installed in each key groove, the long key (24) is fixed on the bracket (4) through a bolt, and the long key (24) is located below the driving sector gear (17).

8. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 6, characterized in that: the small roller shaft system is composed of two sets of same structures, each set of structure at least comprises a small carrier roller (21) and a second mandrel (22), the second mandrel (22) is inserted into the small carrier roller (21) through a pair of bearings, and the small carrier roller (21) is an idler roller;

two shaft ends of the second mandrel (22) respectively extend out of the small carrier roller (21), the extending part is fixedly inserted into the base part of the driving sector gear (17) through a third set screw (23), and the second mandrel (22), the first mandrel (2) and the shaft (18) are parallel to each other.

9. The anti-rollover device for upward unrolling of a large diameter to width ratio tape spool according to claim 2, characterized in that: the maximum distance between two opposite soft pads (14) at two ends of the same mandrel I (2) is 50-80 mm larger than the maximum width of the coil, and the minimum distance is 10-20 mm smaller than the minimum width of the coil;

the height of the L-shaped supporting swing arm (13) is 0.15-0.25 times of the maximum radius of the tape roll.