Anti-tilting device and method for axially unloading a large-width ratio ribbon reel

Abstract

The present invention provides an anti-tilting device and a method for axially unloading a large-width-ratio roll. The anti-tilting device includes a bracket, and three pairs of roller shaft systems are installed on the bracket, namely a power shaft system, a large roller shaft system for unloading a large roll, and a small roller shaft system for unloading a small roll. The large roller shaft system and the small roller shaft system are respectively connected to the power shaft system. The power shaft system drives the large roller shaft system to lift and clamp the large roll, or the power shaft system drives the small roller shaft system to lift the small roll. The present invention uses four L-shaped support swing arms to clamp the four points at the bottom of the roll to form a relatively stable clamping structure. When the roll is disturbed and tends to tip over, since the center of gravity of the roll is only slightly deviated from the center line at this time, the roll does not have an excessively large tilt angle. Therefore, when the tipping moment has not become very large, it is overcome by the restraining moment formed by the L-shaped support swing arm, thereby controlling the roll within a very small tipping angle range and maintaining an upright stable state.

Description

Technical Field

[0001] The invention relates to an axial unloading auxiliary device in the production of metal strip coils, and in particular to an anti-tilting device and an unloading method for axial unloading of strip coils with a large diameter-width ratio. Background Art

[0002] In the production of metal strip coils, the coil loading and unloading process is a necessary link. According to the different coil forms of the uncoiler and the coiler, the direction of coil loading and unloading is divided into radial unloading and axial unloading. Among them, the axial unloading method is mainly used for single-cantilever uncoilers and coilers. The method is that the coil transport route of the coil transport trolley is always in the axial direction of the vertically placed metal coil, and the coil is transported to the front of the coil of the single-cantilever uncoiler or coiler, and the coil is lifted to the position where the central axis of the inner hole of the coil core is coaxial with the coil, and then the coil transport trolley is driven to put the coil on the coil, and then the coil transport trolley descends and exits the coil area to complete the axial coiling process; the axial unloading process is the opposite of the coiling process.

[0003] According to production experience, when the diameter-width ratio (ratio of the outer diameter and width of the coil) is less than 5, the coil is relatively stable within the normal disturbance range of the transportation process and can be placed vertically on the coil transport trolley bracket for direct loading and unloading transportation; but when the diameter-width ratio is greater than 5, the vertical stability of the coil begins to deteriorate, and under normal disturbance, the coil will also tip over to the sides. The common solutions are:

[0004] (1) Steel pipes are manually inserted on both sides of the coil to serve as a barrier.

[0005] This method cannot cope with production tasks with more width specifications, and manual operation is extremely inconvenient, especially after the coil is put on the reel, the steel pipe must be manually taken out from the narrow space between the coil and the reduction box, which is prone to accidents;

[0006] (2) Comprehensively improve the manufacturing accuracy of the car body and rails, increase the number of sensors, and improve the control accuracy of the electrical and hydraulic drive systems, thereby further improving the smoothness of the coil transport trolley's operation.

[0007] This method requires a large investment and has high requirements for the regularity of the coil's shape, but its ability to resist external interference is not strong. Foreign objects on the track, unexpected shutdowns, or human errors can easily cause tipping. Summary of the invention

[0008] The embodiments of the present invention provide an anti-tilting device and a method for axially unloading a large-aspect-ratio ribbon reel to overcome the above-mentioned technical defects.

[0009] In order to solve the above technical problems, the present invention provides an anti-tilting device for axially unloading a large-width ratio ribbon reel, comprising a bracket, on which three pairs of roller shaft systems are installed, namely a power shaft system, a large roller shaft system for unloading a large reel, and a small roller shaft system for unloading a small reel, the large roller shaft system and the small roller shaft system are respectively connected to the power shaft system, the power shaft system drives the large roller shaft system to lift and clamp the large reel, or the power shaft system drives the small roller shaft system to lift the small reel;

[0010] Among them, the large roll is a strip roll with a diameter-to-width ratio greater than 5, and the small roll is a strip roll with a diameter-to-width ratio less than 5.

[0011] Further, the large roller shaft system is composed of two sets of identical structures, each set of structures at least includes a large roller and a mandrel 1, the mandrel 1 is inserted into the large roller through a pair of bearings, and the large roller is an idler roller;

[0012] The two shaft ends of the core shaft 1 extend out of the large rollers respectively, and the extended parts are supported on the bracket through sliding bearings. The shaft end of the core shaft 1 passes through the sliding bearings and is suspended outside the bracket. The suspended part is sleeved with a sliding sleeve, and the sliding sleeve is sleeved with a swing arm base. The swing arm base and the sliding sleeve are fixed as a whole by a set screw 1. The head of the set screw 1 penetrates the sliding sleeve and is slidably connected with a long strip slide groove provided on the shaft wall of the core shaft 1.

[0013] Each swing arm base is installed with an L-shaped support swing arm by bolts, the vertical section of the L-shaped support swing arm is fixed 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 fixed with a soft pad, and the soft pads on both sides of the same core shaft are opposite and parallel;

[0014] Directly below the large roller is a double output oil cylinder parallel to it, which is fixed to the bracket through two brackets, and the rod heads of the piston rods at both ends of the double output oil cylinder are respectively connected to the handle ends of the sliding handles on the same side through sliding pins, and the sliding handles are sleeved in the annular grooves provided on the outer ring surface of the swing arm base;

[0015] A driven sector gear sleeved on the first core shaft is arranged between the end face of the large roller and the sliding bearing. The driven sector gear is fixed to the first core shaft through a second set screw and is connected to a power shaft system.

[0016] Preferably, the sliding handle includes a circular ring portion and a handle portion, wherein the circular ring portion is composed of two semicircular rings spliced ​​together and is inserted into the annular groove of the swing arm base, one end of the handle portion is fixed to the outer wall of the circular ring portion, and the other end has a long hole, which is connected to the rod head of the piston rod of the dual output cylinder through a sliding pin.

[0017] Preferably, the core shaft 1 and the sliding sleeve are clearance-fitted and can slide relative to each other; the sliding handle and the swing arm base are clearance-fitted and can rotate independently of each other.

[0018] Furthermore, the power shaft system is composed of two sets of identical structures, each set of structures includes at least one shaft parallel to the core shaft, the shaft is installed on the bracket through the rib sliding bearings on both sides, and the transmission side of each shaft is plugged with the shaft extension of the swing hydraulic motor through a small hole with a keyway;

[0019] A driving sector gear is fixedly mounted on each of the two ends of the shaft, and the driving sector gear and the driven sector gear on the same side form a pair of gear pairs.

[0020] Preferably, the active sector gear includes a swingable base in the shape of a rectangular flat plate, the center of one short side end of the base is used to install the small roller shaft system, and the other short side end extends obliquely upward to form a sector-shaped portion, the center of the sector-shaped portion is an axial hole for the shaft to pass through, and the sector-shaped edge of the sector-shaped portion is a gear tooth that meshes with the driven sector gear.

[0021] Preferably, four key slots are provided on the bracket, and a long key for limiting the swing position of the base is installed in each key slot. The long key is fixed to the bracket by bolts, and the long key is located below the active sector gear.

[0022] Furthermore, the small roller shaft system is composed of two sets of identical structures, each set of structures at least includes a small roller and a second mandrel, the second mandrel is inserted into the small roller through a pair of bearings, and the small roller is an idler roller;

[0023] The two shaft ends of the second mandrel extend out small rollers respectively, and the extended parts are fixedly inserted into the base of the active sector gear through the set screw three, and the second mandrel, the first mandrel and the shaft are parallel to each other.

[0024] Preferably, the maximum distance between the two opposite soft pads at the two ends of the same core shaft is 50mm to 80mm larger than the maximum width of the belt roll, and the minimum distance is 10mm to 20mm smaller than the minimum width of the belt roll;

[0025] The height of the L-shaped support swing arm is 0.15 to 0.25 times the maximum radius of the coil.

[0026] The present invention also protects a method for loading and unloading a roll using an anti-tilt device, comprising the following steps:

[0027] Determine the diameter-width ratio of the coil:

[0028] If the diameter-to-width ratio is greater than 5, perform step A;

[0029] If the diameter-to-width ratio is less than 5, proceed to step B;

[0030] An anti-tilt device for axially upward unloading of large-width-ratio reels is installed on the reel transport trolley;

[0031] Step A:

[0032] When winding up, the coil transport trolley is moved to the saddle where the strip coil is stored, and the two pairs of L-shaped supporting swing arms are fully raised so that each L-shaped supporting swing arm is at the outermost side of the core shaft one, and the coil transport trolley is raised so that the large roll on the coil transport trolley contacts the large roller, and the large roller lifts the large roll, and the piston rods at both ends of the double output oil cylinder are contracted, driving the two opposite L-shaped supporting swing arms to move closer to the strip coil at the same time. When the soft pad is against the side of the strip coil, the contraction of the double output oil cylinder is stopped to keep the strip coil stably clamped by the two pairs of L-shaped supporting swing arms, and then the coil transport trolley is driven to approach the coiler and perform the axis alignment action until the coil core of the strip coil is coaxial with the reel of the coiler, and then the coil transport trolley is driven to put the strip coil on the reel, and each double output oil cylinder is driven to extend the two piston rods so that all the L-shaped supporting swing arms leave the strip coil, and the coil transport trolley descends to separate the strip coil from the large roller, and the coil transport trolley is moved out of the reel area to complete winding up.

[0033] The unloading process is the reverse operation of the loading process;

[0034] Step B: Install an anti-tilt device for axially upward unloading of large-aspect-ratio reels on the reel transport trolley;

[0035] When winding, move the coil transport trolley to the saddle where the coil is stored, drop the L-shaped support swing arm, drive the swing hydraulic motor to raise the small roller and keep it in the raised state, raise the coil transport trolley, make the small coil on the coil transport trolley contact the small roller, the small roller lifts the small coil, drive the coil transport trolley close to the coiler and perform the axis alignment action until the coil core of the coil is coaxial with the coiler drum, then drive the coil transport trolley to put the coil on the drum, lower the coil transport trolley to separate the coil from the small roller, drive the swing hydraulic motor to make the small roller fall, move the coil transport trolley until it exits the coil drum area, and winding is completed;

[0036] The unloading process is the reverse operation of the loading process.

[0037] The beneficial effects of the present invention are as follows:

[0038] (1) The large-width-ratio coil is clamped by four L-shaped support swing arms on both sides, which greatly enhances the vertical stability and resistance to external disturbance during the transportation of the large-width-ratio coil, thereby preventing the coil from tipping over. This method is more reliable, has stronger anti-interference ability, and is less expensive than the method of comprehensively improving manufacturing accuracy and control accuracy.

[0039] (2) It is equipped with two sets of large and small rollers, which can be used to load and unload large and small coils respectively. The small roller can also be used to load and unload the sleeve. The small roller can also be used to replace the coiler pressure roller to press the head and tail of the strip. It integrates multiple auxiliary functions for loading and unloading coils and has flexible and wide application occasions.

[0040] (3) The entire process is controlled by hydraulic and electrical systems, and there is no need for operators to approach the coil to insert the steel pipe, thereby reducing safety risks and improving production efficiency. Since there is no need for personnel to operate the machine, it is only necessary to arrange sensors at appropriate locations to achieve full automation of the axial upward unloading method of the large-width ratio coil.

[0041] In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 The invention is a schematic diagram of the structure of an anti-tilt device for axially upward unloading of a large-width-ratio belt reel.

[0043] Figure 2 is side view ( Figure 1 Schematic diagram of the P direction.

[0044] Figure 3 is overlooking ( Figure 1 Schematic diagram of the K direction.

[0045] Figure 4 It is a schematic diagram of the structure of an L-shaped support swing arm clamping a large roll.

[0046] Figure 5 It is a schematic diagram of a small roller lifting a small roll or sleeve.

[0047] Figure 6 It is a schematic diagram of the anti-tipping device and the coil transport trolley working together to clamp the coil.

[0048] Description of reference numerals:

[0049] Large roller shaft system: 1. Large roller; 2. Mandrel 1; 3. Sliding bearing; 4. Bracket; 5. Sliding sleeve; 6. Swing arm base; 7. Set screw 1; 8. Long strip slide; 9. Sliding handle; 10. Sliding pin; 11. Double output cylinder; 12. Bracket; 13. L-shaped support swing arm; 14. Soft pad; 15. Set screw 2; 16. Driven sector gear;

[0050] Power shaft system: 17. Active sector gear; 18. Shaft; 19. Flange sliding bearing; 20. Swing hydraulic motor;

[0051] Small roller shaft system: 21. Small roller; 22. Mandrel 2; 23. Set screw 3;

[0052] 24. Long key; 25. Coil transport trolley. DETAILED DESCRIPTION

[0053] The following is an explanation of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0054] It should be noted that, in the present invention, the top, bottom, left and right in the figure are deemed to be the top, bottom, left and right of the anti-tilt device for axially upward unloading of a large aspect ratio tape reel described in this specification.

[0055] The exemplary embodiments of the present invention are now described with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to disclose the present invention in detail and completely and to fully convey the scope of the present invention to those skilled in the art. The terms used in the exemplary embodiments shown in the accompanying drawings are not intended to limit the present invention. In the accompanying drawings, the same units / elements are marked with the same reference numerals.

[0056] Unless otherwise specified, the terms (including technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is understood that the terms defined in commonly used dictionaries should be understood to have the same meanings as those in the context of the relevant fields, and should not be understood as idealized or overly formal meanings.

[0057] First embodiment:

[0058] The first embodiment of the present invention relates to an anti-tilting device for axially unloading a large-width-ratio ribbon reel, comprising a bracket 4, on which three pairs of roller shaft systems are mounted, namely a power shaft system, a large roller shaft system for unloading a large reel, and a small roller shaft system for unloading a small reel, the large roller shaft system and the small roller shaft system being connected to the power shaft system respectively, the power shaft system driving the large roller shaft system to lift and clamp the large reel, or the power shaft system driving the small roller shaft system to lift the small reel;

[0059] Among them, the large roll is a strip roll with a diameter-to-width ratio greater than 5, and the small roll is a strip roll with a diameter-to-width ratio less than 5.

[0060] The anti-tipping device protected by this embodiment has two sets of large and small rollers, which can respectively carry out loading and unloading operations on large and small rolls. The small roller shaft system can also be used to carry out loading and unloading operations on sleeves. The small roller can also be used instead of the coiler pressure roller to carry out pressure operations on the head and tail of the belt. It integrates multiple auxiliary functions for loading and unloading rolls and has flexible and wide application occasions.

[0061] Second implementation method:

[0062] The present embodiment relates to an anti-tilt device for axially unloading a large-width-ratio ribbon reel, comprising a bracket 4, on which three pairs of roller shaft systems are mounted, namely a power shaft system, a large roller shaft system for unloading a large reel, and a small roller shaft system for unloading a small reel, the large roller shaft system and the small roller shaft system being connected to the power shaft system respectively, the power shaft system driving the large roller shaft system to lift and clamp the large reel, or the power shaft system driving the small roller shaft system to lift the small reel;

[0063] Among them, the large roll is a strip roll with a diameter-to-width ratio greater than 5, and the small roll is a strip roll with a diameter-to-width ratio less than 5.

[0064] like Figure 3 As shown, the large roller system is composed of two sets of identical structures, each set of structures at least includes a large roller 1 and a core shaft 2, the core shaft 2 is inserted into the large roller 1 through a pair of bearings, the large roller 1 is an idler roller, the roller can rotate freely with external force, and the core shaft 2 is not driven by external force;

[0065] See also Figure 1 The two shaft ends of the mandrel 2 extend out of the large rollers 1 respectively, and the extended parts are supported on the bracket 4 through the sliding bearing 3. The shaft end of the mandrel 2 passes through the sliding bearing 3 and is suspended outside the bracket 4. The suspended part is sleeved with a sliding sleeve 5, and the sliding sleeve 5 is sleeved with a swing arm base 6. The swing arm base 6 and the sliding sleeve 5 are fixed as a whole by a set screw 7. The head of the set screw 7 penetrates the sliding sleeve 5 and is slidably connected with a long strip slide groove 8 opened on the shaft wall of the mandrel 2;

[0066] The swing arm base 6 and the sliding sleeve 5 are connected as a whole through a set screw 7. The set screw 7 can drive the swing arm base 6 and the sliding sleeve 5 to move linearly along the long strip slide groove 8 on the core shaft 2.

[0067] Each swing arm base 6 is installed with an L-shaped support swing arm 13 by bolts, the vertical section of the L-shaped support swing arm 13 is fixed 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 fixed with a soft pad 14, and the soft pads 14 on both sides of the same core shaft 2 are opposite and parallel;

[0068] See also Figure 1 Directly below the large roller 1 is a double output oil cylinder 11 parallel to the large roller 1. The double output oil cylinder 11 is fixed to the bracket 4 through two brackets 12, and the rod heads of the piston rods at both ends of the double output oil cylinder 11 are respectively connected to the handle ends of the sliding handle 9 on the same side through the sliding pin 10. The sliding handle 9 is sleeved in the annular groove opened on the outer ring surface of the swing arm base 6;

[0069] like Figure 1 and Figure 2 As shown, a driven sector gear 16 mounted on the core shaft 2 is provided between the end face of the large roller 1 and the sliding bearing 3. The driven sector gear 16 is fixed to the core shaft 2 by a set screw 15, and the driven sector gear 16 is connected to the power shaft system.

[0070] The working principle of the large roller shaft system is as follows:

[0071] Four L-shaped support swing arms 13 are used to clamp the four points on the lower part of the belt roll to form a relatively stable clamping structure. When the belt roll is disturbed and tends to tip over, the center of gravity of the belt roll is only slightly deviated from the center line at this time, and the belt roll does not have a large tilt angle. Therefore, the tipping moment has not become very large and is overcome by the restraining moment formed by the L-shaped support swing arm 13, thereby controlling the belt roll within a very small tipping angle range and maintaining an upright stable state.

[0072] The working process of the large roller shaft system is as follows:

[0073] Rotation: The power shaft system drives the driven sector gear 16 to rotate, the driven sector gear 16 drives the core shaft 2 to rotate synchronously, and the core shaft 2 drives the swing arm base 6 and the L-shaped support swing arm 13 to rotate synchronously, forming a set of rotation system;

[0074] Linear motion: The piston rods at both ends of the dual output oil cylinder 11 extend or retract, the piston rods push the sliding handle 9, and the sliding handle 9 drives the swing arm base 6 and the L-shaped supporting swing arm 13 to perform linear motion along the axial direction of the core shaft 2.

[0075] The dual output oil cylinder 11 has two piston rods (oil cylinder rods) sharing a plug cavity in the middle, and the rod ends are respectively connected to the handle ends of the sliding handle 9 through the sliding pin shaft 10. When hydraulic oil is introduced into the plug cavity, the two oil cylinder rods can be extended together, thereby pushing the left and right L-shaped support swing arms 13 to open together. This structure can make the anti-tilt device structure more compact and require fewer hydraulic pipelines.

[0076] The working process of the large roller system during the loading and unloading process is as follows:

[0077] See also Figure 4When rolling up, the two pairs of L-shaped support swing arms 13 are fully raised, so that each L-shaped support swing arm 13 is at the outermost side of the core shaft 2, and the roll transport trolley 25 is raised, so that the large roll on the roll transport trolley 25 contacts the large roller 1, and the large roller 1 lifts the large roll. The piston rods at both ends of the double output oil cylinder 11 contract, driving the two opposite L-shaped support swing arms 13 to move closer to the belt roll at the same time. When the soft pad 14 is attached to the side of the belt roll, the contraction of the double output oil cylinder 11 is stopped, and the belt roll is kept stable by the two pairs of L-shaped support swing arms 13. The coil transport trolley 25 is clamped and then driven to approach the coiler and perform the axis alignment action until the coil core of the coil is coaxial with the coil drum of the coiler, and then the coil transport trolley 25 is driven to put the coil on the drum, and each double output oil cylinder 11 is driven to extend the two piston rods to make all the L-shaped support swing arms 13 leave the coil, and the coil transport trolley 25 descends to make the coil separate from the large roller 1, and the swing hydraulic motor 20 is driven to make the L-shaped support swing arm 13 fall, and the coil transport trolley 25 is moved out of the coil drum area to complete the winding;

[0078] The unloading process is the reverse operation of the loading process.

[0079] Third embodiment:

[0080] The present embodiment relates to an anti-tilt device for axially unloading a large-width-ratio ribbon reel, comprising a bracket 4, on which three pairs of roller shaft systems are mounted, namely a power shaft system, a large roller shaft system for unloading a large reel, and a small roller shaft system for unloading a small reel, the large roller shaft system and the small roller shaft system being connected to the power shaft system respectively, the power shaft system driving the large roller shaft system to lift and clamp the large reel, or the power shaft system driving the small roller shaft system to lift the small reel;

[0081] Among them, the large roll is a strip roll with a diameter-to-width ratio greater than 5, and the small roll is a strip roll with a diameter-to-width ratio less than 5.

[0082] like Figure 3 As shown, the large roller system is composed of two sets of identical structures, each set of structures at least includes a large roller 1 and a core shaft 2, the core shaft 2 is inserted into the large roller 1 through a pair of bearings, the large roller 1 is an idler roller, the roller can rotate freely with external force, and the core shaft 2 is not driven by external force;

[0083] See also Figure 1 The two shaft ends of the mandrel 2 extend out of the large rollers 1 respectively, and the extended parts are supported on the bracket 4 through the sliding bearing 3. The shaft end of the mandrel 2 passes through the sliding bearing 3 and is suspended outside the bracket 4. The suspended part is sleeved with a sliding sleeve 5, and the sliding sleeve 5 is sleeved with a swing arm base 6. The swing arm base 6 and the sliding sleeve 5 are fixed as a whole by a set screw 7. The head of the set screw 7 penetrates the sliding sleeve 5 and is slidably connected with a long strip slide groove 8 opened on the shaft wall of the mandrel 2;

[0084] The swing arm base 6 and the sliding sleeve 5 are connected as a whole through a set screw 7. The set screw 7 can drive the swing arm base 6 and the sliding sleeve 5 to move linearly along the long strip slide groove 8 on the core shaft 2.

[0085] Each swing arm base 6 is installed with an L-shaped support swing arm 13 by bolts, the vertical section of the L-shaped support swing arm 13 is fixed 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 fixed with a soft pad 14, and the soft pads 14 on both sides of the same core shaft 2 are opposite and parallel;

[0086] See also Figure 1 Directly below the large roller 1 is a double output oil cylinder 11 parallel to the large roller 1. The double output oil cylinder 11 is fixed to the bracket 4 through two brackets 12, and the rod heads of the piston rods at both ends of the double output oil cylinder 11 are respectively connected to the handle ends of the sliding handle 9 on the same side through the sliding pin 10. The sliding handle 9 is sleeved in the annular groove opened on the outer ring surface of the swing arm base 6;

[0087] like Figure 1 and Figure 2 As shown, a driven sector gear 16 mounted on the core shaft 2 is provided between the end face of the large roller 1 and the sliding bearing 3. The driven sector gear 16 is fixed to the core shaft 2 by a set screw 15, and the driven sector gear 16 is connected to the power shaft system.

[0088] For the convenience of installation, the sliding handle 9 includes a circular ring portion and a handle portion. The circular ring portion is composed of two semicircular rings assembled together and is inserted into the annular groove of the swing arm base 6. One end of the handle portion is fixed to the outer wall of the circular ring portion, and a long hole is opened at the other end. The long hole is connected to the rod head of the piston rod of the dual output cylinder 11 through a sliding pin shaft 10.

[0089] The core shaft 2 and the sliding sleeve 5 are clearance-fitted and can slide relative to each other; the sliding handle 9 and the swing arm base 6 are clearance-fitted and can rotate independently of each other.

[0090] Since there is a clearance fit between the sliding handle 9 and the swing arm base 6, they can rotate independently of each other. The sliding handle 9 is blocked by the oil cylinder 11 and does not rotate with the core shaft 2, the sliding sleeve 5, and the swing arm base 6. Only when the oil cylinder 11 pushes the sliding handle 9, the swing arm base 6 and the L-shaped support swing arm 13 can be driven to make a linear motion along the axial direction of the core shaft 2.

[0091] When the belt roll tends to tip over, the huge deadweight will cause the tipping moment to be relatively large, and the force acting on the L-shaped supporting swing arm 13 will also be very large. In order to solve this problem, this embodiment installs a hydraulic lock on the oil circuit of the dual output oil cylinder 11, so that the L-shaped supporting swing arm 13 can be fixed in place under huge external force to keep the belt roll upright.

[0092] Fourth embodiment:

[0093] Based on the second implementation mode, Figure 3 As shown, the power shaft system is composed of two sets of identical structures, each set of structures at least includes a shaft 18 parallel to the core shaft 2, the shaft 18 is installed on the bracket 4 through the retaining edge sliding bearings 19 on both sides, and the transmission side of each shaft 18 is plugged with the shaft extension of the swing hydraulic motor 20 through a small hole with a keyway;

[0094] The drive side and the operating side of the anti-tilt device refer to Figure 1 , Figure 3 and Figure 4 .

[0095] A driving sector gear 17 is fixedly mounted on each of the two ends of the shaft 18 , and the driving sector gear 17 and the driven sector gear 16 on the same side form a pair of gear pairs.

[0096] The swing hydraulic motor 20 drives the shaft 18 to rotate, the shaft 18 drives the active sector gear 17 to rotate, the active sector gear 17 drives the driven sector gear 16 to rotate, the driven sector gear 16 drives the core shaft 2 to rotate synchronously, the core shaft 2 drives the swing arm base 6 and the L-shaped support swing arm 13 to rotate synchronously, thereby realizing the raising or lowering of the L-shaped support swing arm 13.

[0097] Fifth embodiment:

[0098] Based on the fourth implementation mode, Figure 2 or Figure 5 As shown, the active sector gear 17 includes a swingable base in the shape of a rectangular flat plate, the center of one short side end of the base is used to install the small roller shaft system, and the other short side end extends obliquely upward to form a sector portion, the center of the sector portion is an axial hole for the shaft 18 to pass through, and the sector edge of the sector portion is the gear tooth that meshes with the driven sector gear 16.

[0099] Four key slots are provided on the bracket 4 , and a long key 24 for limiting the swing position of the base is installed in each key slot. The long key 24 is fixed to the bracket 4 by bolts, and the long key 24 is located below the active sector gear 17 .

[0100] like Figure 2 and Figure 3 As shown, the small roller shaft system is composed of two sets of identical structures, each set of structures at least includes a small roller 21 and a second mandrel 22, the second mandrel 22 is inserted into the small roller 21 through a pair of bearings, and the small roller 21 is an idler roller;

[0101] The two shaft ends of the second mandrel 22 extend out of the small rollers 21 respectively, and the extended parts are fixedly inserted into the base of the active sector gear 17 by the set screws 3 23. The second mandrel 22, the first mandrel 2, and the shaft 18 are parallel to each other.

[0102] When the active sector gear 17 swings down, it is blocked by the long key 24 and stops swinging, so that the small roller 21 and the L-shaped support swing arm 13 remain in a fixed position. Figure 2 .

[0103] The anti-tilt function of the L-shaped support swing arm 13 and the small roll lifting function of the small roller 21 will not work at the same time, utilizing the opposite rotation characteristics of the meshing gears. Only one set of rotation system is used for the two sets of swing mechanisms, and the structure is more compact.

[0104] Specifically, the swing hydraulic motor 20 drives the shaft 18 to rotate, the shaft 18 drives the active sector gear 17 to rotate, the active sector gear 17 drives the driven sector gear 16 to rotate, the driven sector gear 16 drives the core shaft 2 to rotate synchronously, the core shaft 2 drives the swing arm base 6 and the L-shaped support swing arm 13 to rotate synchronously, so as to realize the raising or lowering of the L-shaped support swing arm 13, see Figure 2 When the L-shaped support swing arm 13 is raised, the active sector gear 17 is in Figure 2 In the position shown, the base of the driving sector gear 17 is limited to the long key 24, and the small roller 21 is in a dropped state, so that when the large roller 1 lifts the large roll, the interference of the small roller 21 is avoided; or, see Figure 5 The swing hydraulic motor 20 drives the shaft 18 to rotate, the shaft 18 drives the active sector gear 17 to rotate, the active sector gear 17 drives the spindle 22 to rotate, and the spindle 22 drives the small roller 21 to rise to Figure 5 In the position shown, the L-shaped support swing arm 13 is in a dropped state to avoid interfering with the lifting of the small roll.

[0105] Sixth embodiment:

[0106] In this embodiment, the stroke of the L-shaped support swing arm 13 on the core shaft 2 is controlled within the following range: the maximum distance between the two opposite soft pads 14 at the two ends of the same core shaft 2 is 50mm-80mm larger than the maximum width of the tape roll, that is, at the outermost end, the distance between the surfaces of the flat soft pads 14 of the L-shaped support swing arm 13 should be 50mm-80mm larger than the maximum width specification of the tape roll, which can allow for a small swing margin and deviation when taking up the roll; the minimum distance between the two opposite soft pads 14 at the two ends of the same core shaft 2 is 10mm-20mm smaller than the minimum width of the tape roll, that is, at the innermost end, it is 10mm-20mm smaller than the minimum width specification of the tape roll, which can ensure the clamping effect of the minimum specification tape roll;

[0107] The height of the L-shaped support swing arm 13 is 0.15 to 0.25 times the maximum radius of the coil. The specific reasons are as follows:

[0108] If the height of the L-shaped supporting swing arm 13 is too low, the clamping effect on the belt roll will be weakened and the anti-rollover ability will be reduced; if the height of the L-shaped supporting swing arm 13 is too high, when the small roller 21 is erected and the L-shaped supporting swing arm 13 is swung down, in order to prevent the swing arms on both sides from interfering with each other, the distance between the large rollers 1 becomes too wide, resulting in the device occupying too much space, increasing the overall weight, and worsening the economy.

[0109] Seventh embodiment:

[0110] This embodiment provides a method for loading and unloading a roll using an anti-tipping device, comprising the following steps:

[0111] Determine the diameter-width ratio of the coil:

[0112] If the diameter-to-width ratio is greater than 5, perform step A;

[0113] If the diameter-to-width ratio is less than 5, proceed to step B;

[0114] Step A:

[0115] An anti-tilt device for axially upward unloading of a large-width-ratio tape reel is installed on the reel transport trolley 25;

[0116] When winding, the coil transport trolley 25 is moved to the saddle where the coil is stored, and the two pairs of L-shaped support swing arms 13 are fully raised, so that each L-shaped support swing arm 13 is at the outermost side of the core shaft 2, and the coil transport trolley 25 is raised, so that the large coil on the coil transport trolley 25 contacts the large roller 1, and the large roller 1 lifts the large coil, and the piston rods at both ends of the double output cylinder 11 contract, driving the two opposite L-shaped support swing arms 13 to move closer to the coil at the same time. When the soft pad 14 is attached to the side of the coil, the contraction of the double output cylinder 11 is stopped, and the coil is kept being held by the two pairs of L The L-shaped support swing arm 13 is clamped stably, and then the coil transport trolley 25 is driven to approach the coiler and perform the axis alignment action until the coil core of the coil is coaxial with the coil drum of the coiler, and then the coil transport trolley 25 is driven to put the coil on the drum, and each double output oil cylinder 11 is driven to extend the two piston rods to make all the L-shaped support swing arms 13 leave the coil, and the coil transport trolley 25 descends to make the coil separate from the large roller 1, and the swing hydraulic motor 20 is driven to make the L-shaped support swing arm 13 fall, and the coil transport trolley 25 is moved out of the coil drum area to complete the winding;

[0117] The unloading process is the reverse operation of the loading process;

[0118] Step B: Installing an anti-tilt device for axially upward unloading of a large-aspect-ratio reel on the reel transport trolley 25;

[0119] When winding up, the coil transport trolley 25 is moved to the saddle where the coil is stored, the L-shaped support swing arm 13 is lowered, and the swing hydraulic motor 20 is driven to raise the small roller 21 and keep it in the raised state, and the coil transport trolley 25 is raised, so that the small coil on the coil transport trolley 25 contacts the small roller 21, and the small roller 21 lifts the small coil, and the coil transport trolley 25 is driven to approach the coiler and perform the axis alignment action until the coil core of the coil is coaxial with the coil drum of the coiler, and then the coil transport trolley 25 is driven to put the coil on the drum, and the coil transport trolley 25 is lowered to separate the coil from the small roller 21, and the coil transport trolley 25 is moved until it exits the coil drum area, and winding up is completed;

[0120] The unloading process is the reverse operation of the loading process.

[0121] The above process can be seen in Figure 1 to Figure 6 .

[0122] The sleeve can be regarded as a small roll with a very small outer diameter. The operation of loading and unloading the sleeve is the same as that of the small roll.

[0123] The anti-tilt device in this embodiment includes a bracket 4, on which three pairs of roller shaft systems are installed, 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 to the power shaft system, and the power shaft system drives the large roller shaft system to lift and clamp the large roll, or the power shaft system drives the small roller shaft system to lift the small roll;

[0124] Among them, the large roll is a strip roll with a diameter-to-width ratio greater than 5, and the small roll is a strip roll with a diameter-to-width ratio less than 5.

[0125] The large roller system consists of two sets of identical structures, each set of structures at least includes a large roller 1 and a mandrel 2, the mandrel 2 is inserted into the large roller 1 through a pair of bearings, and the large roller 1 is an idler roller;

[0126] The two shaft ends of the mandrel 2 extend out of the large rollers 1 respectively, and the extended parts are supported on the bracket 4 through the sliding bearing 3. The shaft end of the mandrel 2 passes through the sliding bearing 3 and is suspended outside the bracket 4. The suspended part is sleeved with a sliding sleeve 5, and the sliding sleeve 5 is sleeved with a swing arm base 6. The swing arm base 6 and the sliding sleeve 5 are fixed as a whole by a set screw 7. The head of the set screw 7 penetrates the sliding sleeve 5 and is slidably connected with a long strip slide groove 8 provided on the shaft wall of the mandrel 2;

[0127] Each swing arm base 6 is installed with an L-shaped support swing arm 13 by bolts, the vertical section of the L-shaped support swing arm 13 is fixed 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 fixed with a soft pad 14, and the soft pads 14 on both sides of the same core shaft 2 are opposite and parallel;

[0128] Directly below the large roller 1 is a double output oil cylinder 11 parallel to the large roller 1. The double output oil cylinder 11 is fixed to the bracket 4 through two brackets 12, and the rod heads of the piston rods at both ends of the double output oil cylinder 11 are respectively connected to the handle ends of the sliding handle 9 on the same side through the sliding pin 10. The sliding handle 9 is sleeved in the annular groove opened on the outer ring surface of the swing arm base 6.

[0129] A driven sector gear 16 sleeved on the core shaft 2 is provided between the end surface of the large roller 1 and the sliding bearing 3. The driven sector gear 16 is fixed to the core shaft 2 by a set screw 15, and the driven sector gear 16 is connected to the power shaft system.

[0130] The sliding handle 9 includes a circular ring portion and a handle portion. The circular ring portion is composed of two semicircular rings assembled together and is inserted into the annular groove of the swing arm base 6. One end of the handle portion is fixed to the outer wall of the circular ring portion, and the other end is provided with a long hole. The long hole is connected to the rod head of the piston rod of the dual output cylinder 11 through a sliding pin shaft 10.

[0131] The core shaft 2 and the sliding sleeve 5 are clearance-fitted and can slide relative to each other; the sliding handle 9 and the swing arm base 6 are clearance-fitted and can rotate independently of each other.

[0132] The power shaft system is composed of two sets of identical structures, each set of structures at least includes a shaft 18 parallel to the core shaft 2, the shaft 18 is installed on the bracket 4 through the retaining edge sliding bearings 19 on both sides, and the transmission side of each shaft 18 is plugged with the shaft extension of the swing hydraulic motor 20 through a small hole with a keyway;

[0133] A driving sector gear 17 is fixedly mounted on each of the two ends of the shaft 18 , and the driving sector gear 17 and the driven sector gear 16 on the same side form a pair of gear pairs.

[0134] The driving sector gear 17 includes a swingable base in the shape of a rectangular flat plate. The center of one short side end of the base is used to install the small roller shaft system, and the other short side end extends obliquely upward to form a sector-shaped portion. The center of the sector-shaped portion is an axial hole for the shaft 18 to pass through, and the sector-shaped edge of the sector-shaped portion is a gear tooth that meshes with the driven sector gear 16.

[0135] Four key slots are provided on the bracket 4 , and a long key 24 for limiting the swing position of the base is installed in each key slot. The long key 24 is fixed to the bracket 4 by bolts, and the long key 24 is located below the active sector gear 17 .

[0136] The small roller shaft system is composed of two sets of identical structures, each set of structures at least includes a small roller 21 and a second mandrel 22, the second mandrel 22 is inserted into the small roller 21 through a pair of bearings, and the small roller 21 is an idler roller;

[0137] The two shaft ends of the second mandrel 22 extend out of the small rollers 21 respectively, and the extended parts are fixedly inserted into the base of the active sector gear 17 by the set screws 3 23. The second mandrel 22, the first mandrel 2, and the shaft 18 are parallel to each other.

[0138] The maximum distance between the two opposite soft pads 14 at the two ends of the same core shaft 2 is 50mm to 80mm larger than the maximum width of the belt roll, and the minimum distance is 10mm to 20mm smaller than the minimum width of the belt roll;

[0139] The height of the L-shaped support swing arm 13 is 0.15 to 0.25 times the maximum radius of the coil.

[0140] The present invention utilizes four L-shaped support swing arms to clamp the four points at the bottom of the belt roll, thereby forming a relatively stable clamping structure. When the belt roll is disturbed and tends to tip over, the center of gravity of the belt roll only slightly deviates from the center line at this time, and the belt roll does not have an excessively large tilt angle. Therefore, the tipping moment has not yet become very large and is overcome by the restraining moment formed by the L-shaped support swing arms, thereby controlling the belt roll within a very small tipping angle range and maintaining an upright stable state.

[0141] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An anti-tilt device for axially unloading a large-width-ratio belt reel, comprising a bracket (4), characterized in that: The bracket (4) is provided with three pairs of roller shaft systems, 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 to the power shaft system. The power shaft system drives the large roller shaft system to lift and clamp the large roll, or the power shaft system drives the small roller shaft system to lift the small roll. Among them, the large roll is the roll with a diameter-width ratio greater than 5, and the small roll is the roll with a diameter-width ratio less than 5; The large roller shaft system is composed of two sets of identical structures, each set of structures at least includes a large roller (1) and a core shaft (2), the core shaft (2) is inserted into the large roller (1) through a pair of bearings, and the large roller (1) is an idler roller; The two shaft ends of the core shaft (2) extend out of the large rollers (1) respectively, and the extended parts are supported on the bracket (4) through the sliding bearing (3). The shaft end of the core shaft (2) passes through the sliding bearing (3) and is suspended outside the bracket (4). The suspended part is sleeved with a sliding sleeve (5), and the sliding sleeve (5) is sleeved with a swing arm base (6). The swing arm base (6) and the sliding sleeve (5) are fixed as a whole by a set screw (7). The head of the set screw (7) passes through the sliding sleeve (5) and is slidably connected with a long strip slide groove (8) provided on the shaft wall of the core shaft (2); Each swing arm base (6) is mounted with an L-shaped support swing arm (13) by means of bolts, the vertical section of the L-shaped support swing arm (13) is fixedly connected to the swing arm base (6), the end surface of the horizontal section is welded with a flat plate, the surface of the flat plate is fixedly connected with a soft pad (14), and the soft pads (14) on both sides of the same core shaft (2) are opposite and parallel; Directly below the large roller (1) is a dual-output oil cylinder (11) parallel to the large roller (1), the dual-output oil cylinder (11) being fixed to the bracket (4) via two brackets (12), and the rod heads of the piston rods at both ends of the dual-output oil cylinder (11) are respectively connected to the handle ends of the sliding handle (9) on the same side via sliding pins (10), and the sliding handle (9) is sleeved in an annular groove formed on the outer ring surface of the swing arm base (6); A driven sector gear (16) sleeved on the core shaft (2) is provided between the end surface of the large roller (1) and the sliding bearing (3); the driven sector gear (16) is fixed to the core shaft (2) by means of a second set screw (15), and the driven sector gear (16) is connected to the power shaft system; The core shaft 1 (2) and the sliding sleeve (5) are clearance-matched and can slide relative to each other; the sliding handle (9) and the swing arm base (6) are clearance-matched and can rotate independently of each other; The power shaft system is composed of two sets of identical structures, each set of structures at least includes a shaft (18) parallel to the core shaft (2), the shaft (18) is installed on the bracket (4) through the retaining edge sliding bearings (19) on both sides, and the transmission side of each shaft (18) is plugged with the shaft extension of the swing hydraulic motor (20) through a small hole with a keyway; A driving sector gear (17) is fixedly mounted on each of the two ends of the shaft (18), and the driving sector gear (17) and the driven sector gear (16) on the same side form a pair of gear pairs; The small roller shaft system is composed of two sets of identical structures, each set of structures at least includes a small roller (21) and a second core shaft (22), the second core shaft (22) is inserted into the small roller (21) through a pair of bearings, and the small roller (21) is an idler roller; The two shaft ends of the second mandrel (22) extend out of the small rollers (21) respectively, and the extended parts are fixedly inserted into the base of the active sector gear (17) by means of the third set screw (23), and the second mandrel (22), the first mandrel (2), and the shaft (18) are parallel to each other; The maximum distance between the two opposite soft pads (14) at the two ends of the same core shaft (2) is 50 mm to 80 mm greater than the maximum width of the belt roll, and the minimum distance is 10 mm to 20 mm less than the minimum width of the belt roll; The height of the L-shaped support swing arm (13) is 0.15 to 0.25 times the maximum radius of the coil.

2. The anti-tilt device for axially upward unloading of a large-aspect-ratio ribbon reel according to claim 1, characterized in that: The sliding handle (9) comprises a circular ring portion and a handle portion, wherein the circular ring portion is formed by splicing two semicircular rings and is fitted into an annular groove of the swing arm base (6), one end of the handle portion is fixedly connected to the outer wall of the circular ring portion, and the other end is provided with a long hole, which is connected to the rod head of the piston rod of the dual output oil cylinder (11) through a sliding pin shaft (10).

3. The anti-tilt device for axially upward unloading of a large-aspect-ratio ribbon reel according to claim 1, characterized in that: The active sector gear (17) comprises a swingable base in the shape of a rectangular flat plate, the center of one short side end of the base is used to mount a small roller shaft system, the other short side end extends obliquely upward to form a sector portion, the center of the sector portion is an axial hole for the shaft (18) to pass through, and the sector edge of the sector portion is a gear tooth that meshes with the driven sector gear (16).

4. The anti-tilt device for axially upward unloading of a large-aspect-ratio reel as claimed in claim 3, characterized in that: The bracket (4) is provided with four key slots, each of which is provided with a long key (24) for limiting the swing position of the base, and the long key (24) is fixed to the bracket (4) by bolts, and the long key (24) is located below the active sector gear (17).

5. A method for unloading a coil using an anti-tilt device, using the anti-tilt device for axially unloading a large-aspect-ratio coil according to any one of claims 1 to 4, characterized in that: The following steps are involved: Determine the diameter-width ratio of the coil: If the diameter-to-width ratio is greater than 5, perform step A; If the diameter-to-width ratio is less than 5, proceed to step B; Step A: An anti-tilt device for axially upward unloading of a large-width-ratio tape reel is installed on the reel transport trolley (25); When rolling up, the coil transport trolley (25) is moved to the saddle where the coil is stored, and the two pairs of L-shaped support swing arms (13) are fully raised so that each L-shaped support swing arm (13) is at the outermost side of the core shaft (2). The coil transport trolley (25) is raised so that the large coil on the coil transport trolley (25) contacts the large roller (1). The large roller (1) lifts the large coil, and the piston rods at both ends of the double output oil cylinder (11) are retracted, driving the two opposite L-shaped support swing arms (13) to move toward the coil at the same time. When the soft pad (14) is pressed against the side of the coil, the retraction of the double output oil cylinder (11) is stopped, and the coil is kept being held by the two The L-shaped support swing arm (13) is stably clamped, and then the coil transport trolley (25) is driven to approach the coiler and perform an axis alignment action until the coil core of the coil is coaxial with the coil drum of the coiler, and then the coil transport trolley (25) is driven to put the coil on the coil drum, and each double output cylinder (11) is driven to extend two piston rods to make all the L-shaped support swing arms (13) leave the coil, and the coil transport trolley (25) is lowered to make the coil separate from the large roller (1), and the swing hydraulic motor (20) is driven to make the L-shaped support swing arm (13) fall, and the coil transport trolley (25) is moved out of the coil drum area to complete the winding; The unloading process is the reverse operation of the loading process; Step B: installing an anti-tilt device for axially upward unloading of a large-aspect-ratio reel on the reel transport trolley (25); When winding up, the coil transport trolley (25) is moved to the saddle where the coil is stored, the L-shaped support swing arm (13) is lowered, and the swing hydraulic motor (20) is driven to raise the small roller (21) and keep it in the raised state, and the coil transport trolley (25) is raised to make the small coil on the coil transport trolley (25) contact the small roller (21), and the small roller (21) lifts the small coil, and the coil transport trolley (25) is driven to approach the coiler and perform an axis alignment action until the coil core of the coil is coaxial with the coil drum of the coiler, and then the coil transport trolley (25) is driven to put the coil on the coil drum, and the coil transport trolley (25) is lowered to make the coil separate from the small roller (21), and the coil transport trolley (25) is moved until it exits the coil drum area, and winding up is completed; The unloading process is the reverse operation of the loading process.

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