CN112551123A - Automatic distributing and feeding mechanism and method for steel rails - Google Patents
Automatic distributing and feeding mechanism and method for steel rails Download PDFInfo
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- CN112551123A CN112551123A CN202011539260.8A CN202011539260A CN112551123A CN 112551123 A CN112551123 A CN 112551123A CN 202011539260 A CN202011539260 A CN 202011539260A CN 112551123 A CN112551123 A CN 112551123A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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Abstract
Providing a steel rail automatic distributing and feeding mechanism and a method thereof, wherein the step S1 is to calculate the number of trolleys; step S2, sensing the position of the steel rail; step S3, entering the position right below the steel rail; s4, lifting the lifting platform by the trolley to enable the steel rail to be separated from the plane of the material rack; step S5, moving the steel rail to a working roller way: step S6, the trolley falls back: and S7, repeating the steps S1 to S6 and circulating the steps until the automatic distribution and feeding of all the steel rails are completed. The automatic steel rail shifting mechanism can automatically calculate the number of trolleys, automatically find the steel rails, automatically lift the steel rails, automatically align the steel rails, automatically and accurately complete steel rail shifting, and inclined or zero-clearance steel rail placement does not influence shifting and feeding of the mechanism.
Description
Technical Field
The invention belongs to the technical field of steel rail conveying in operation and transportation, and particularly relates to an automatic steel rail distributing and feeding mechanism and a method thereof.
Background
When the turnout steel rail is manufactured, in order to facilitate the operation of workers and improve the production efficiency, the processing machine tool can be equipped with a special steel rail feeding platform. The steel rail feeding platform (see figure 1) mainly comprises a working roller table 1, a plurality of groups of material racks 2 and a steel rail distributing and feeding mechanism 3. Wherein, the material rack 2 is mainly used for bearing the weight of the steel rail. The steel rail distributing and feeding mechanism 3 is a chain transmission mechanism with a push block 4: (as shown in fig. 2 and 3) the steel rail distributing and feeding mechanism 3 comprises a push block 4, a chain 5, a stop block 6, a pin shaft 7 and a roller 8. Used for controlling the synchronous movement of the steel rails on the material rack and conveying the steel rails to the working roller table 1.
When in use: before production, an operator firstly lifts and transports steel rails to be processed in a centralized manner on a plurality of groups of material racks 2, a certain width must be reserved between the steel rails, and the steel rails can be transferred only by ensuring that the steel rails are placed in parallel with a working roller table 1. After the previous steel rail is processed and leaves the working roller way, an operator pushes the next steel rail from the plurality of groups of material racks 2 to the working rail 1 through the steel rail distributing and feeding mechanism 3, and the machine tool continues to produce the next steel rail.
As can be seen, the conventional steel rail distributing and feeding mechanism (as shown in fig. 2, 3, and 4) pushes the steel rail to move from the rack 2 to the working roller table 1 through the chain pushing block 4. Because the weight of the steel rail is large, the push block 4 generally needs to have a certain thickness, and in order to ensure that the push block smoothly enters the material stirring side of the steel rail, a certain width needs to be reserved between the steel rail and the steel rail, and the width needs to be larger than the width of the push block, so that the push block 4 can play a pushing role; moreover, the chain transmission mechanism adopts an integral braking mode: namely, the advancing positions of the chain pushing block trolleys on different material racks must be synchronous, and the steel rail and the working roller 1 must be placed in parallel, so that the chain pushing block 4 can be ensured to be positioned at the same side of the same steel rail, and the successful pushing of a single steel rail can be smoothly completed. As can be seen, the conventional structure has problems in that: (1) in order to ensure that the pushing block 4 smoothly enters the steel rail material stirring side, a certain width needs to be reserved between the steel rail and the steel rail, the width needs to be larger than the width of the pushing block, the distance between the original positions of the steel rails on the material rest is smaller or mutually contacted, auxiliary tools such as a crown block need to be assembled by manpower to separate the steel rails, the steel rails need to be arranged in parallel, and the process is complicated, labor-consuming, time-consuming and labor-consuming. (2) The chain transmission mechanism is in an integral braking synchronous moving mode, the advancing positions of different material rack pushing blocks are the same, the steel rails must be placed in parallel at intervals, if the steel rails on the material rack incline, the chain pushing blocks can stop at the material pushing sides of the different steel rails at the same time, the material pushing of a single steel rail cannot be completed correctly, and the error reporting is realized. In view of this, the following improvement is proposed.
Disclosure of Invention
The technical problems solved by the invention are as follows: the utility model provides a rail automatic allocation feed mechanism and method, adopts many dragging material dollies of taking position induction system hydraulic pressure liftable to realize according to the accurate material of seeking of step and accurate allocation material loading to different length rails, and the rail slope or zero clearance are placed and are all not produced the influence to this allocation feed mechanism, accomplish the rail automatic allocation material loading.
The technical scheme adopted by the invention is as follows: the automatic distributing and feeding method of the automatic distributing and feeding mechanism for the steel rails comprises the following steps:
s1, calculating the number of trolleys: inputting the length D of the steel rail into a control panel of the PLC, and automatically calculating and selecting a corresponding number of dragging trolleys in a corresponding area to enter a working state by the system according to the length D of the steel rail;
s2, sensing the position of the steel rail: all trolleys move towards the steel rails of the material rack on the right side respectively under the traction of the chains, when the position sensing device is close to the steel rails and identifies the steel rails, the trolleys slow down and stop moving forwards, and other trolleys which do not sense the steel rails continue to move forwards until all the material dragging trolleys identify the steel rails and stop moving;
s3, entering the position right below the steel rail: taking the signal which is induced by the position sensing device of the last trolley in the step S2 and stops as a trigger signal, and controlling the chain by the PLC to continuously drag the trolleys to move forwards for a fixed length so that all the working trolleys enter the position right below the rail bottom of the steel rail;
s4, lifting the lifting platform by the trolley to separate the steel rail from the plane of the material rack: after all the trolleys in the step S3 move to the position right below the steel rail, all the trolleys jack up the steel rail upwards at the same time, so that the steel rail is separated from the material rack platform;
s5, moving the steel rail to a working roller way: a PLC controller of the PLC control system automatically calculates the moving speed V of each trolley according to the distance between each trolley and a working roller station, a chain drags each trolley to move a steel rail to the working roller station within the same time period T at different speeds V, and when all the trolleys reach the working roller station at the same time, the automatic righting of the inclined steel rail is just realized; when the steel rail moves to the working roller way, the spring stop pin assembly which can automatically pop up and down on one side of the circular tray automatically pops up the stop pin when no shielding object exists, so that the steel rail is prevented from sliding off the circular tray in the moving process of the trolley;
s6, trolley falling: when the steel rail is righted and reaches the working roller way in the step S5, after all the trolley lifting platforms descend to return to the initial position, the material dragging operation of the next steel rail is prepared;
and S7, repeating the steps S1 to S6 and circulating the steps until the automatic distribution and feeding of all the steel rails are completed.
According to the steel rail automatic distribution feeding mechanism used in the method, the steel rail automatic distribution feeding mechanism comprises a lifting platform, the upper end face of the lifting platform is fixedly connected with the lower end face of a circular tray, a hydraulic piston rod of a hydraulic device vertically penetrates through a supporting plate body, the upper end of the hydraulic piston rod is vertically and fixedly connected with the lower end face of the circular tray, the hardness of the circular tray is lower than that of a track, and anti-skid grains are arranged on the upper end face of the circular tray.
In the above technical solution, further: automatic feed mechanism that allocates of rail includes the backup pad, backup pad bottom installation gyro wheel, and the chain is connected to the backup pad plate body left and right sides, its characterized in that: the hydraulic device is installed at the bottom of the middle of the supporting plate body, a hydraulic piston rod of the hydraulic device vertically penetrates through the supporting plate body, the upper end of the hydraulic piston rod is vertically and fixedly connected with the lifting platform, the left side and the right side of the bottom end of the lifting platform are vertically and fixedly connected with guide rods, and the bottoms of the guide rods are vertically inserted into vertical guide through holes formed in the supporting plate body and are in sliding friction fit with the guide through holes; a fixed stop shoulder which is higher than the lifting platform in an L shape is arranged on the left side of the lifting platform, and a spring stop pin assembly which can automatically pop up and vertically lift higher than the lifting platform is arranged on the right side of the lifting platform; and the upper end surface of the plate body on the right side of the supporting plate is vertically provided with a steel rail position sensing device which detects and senses upwards.
In the above technical solution, further: the automatic steel rail distributing and feeding mechanism comprises a spring catch pin assembly, the spring catch pin assembly comprises a spring sleeve, a compression spring and a catch pin, an opening in the upper end of the spring sleeve is vertically arranged on the lower end face of the lifting platform, the compression spring is arranged in the spring sleeve, the compressed upper end of the compression spring is fixedly connected with the lower end of the catch pin, and the upper end of the catch pin is higher than the upper end face of the lifting platform when the catch pin is popped out.
In the above technical solution, further: the automatic steel rail distribution and feeding mechanism comprises a control system, the control system comprises a PLC (programmable logic controller), the position sensing device is connected with the input end of the PLC, the output end of the PLC is connected with a driving device of a chain, and the output end of the PLC is further connected with the input end of a hydraulic device.
In the above technical solution, further: the steel rail automatic distributing and feeding mechanism comprises a control system, the control system comprises a PLC (programmable logic controller) and a control program, and the control program comprises a trolley number calculation control program and a trolley advancing speed control program; the calculation formula of the trolley number calculation control program is that the trolley number is N = the length D of the steel rail/the distance D of the trolleys (when N is an integer, the value of the trolley number result is N; when N is a decimal, the value of the integral bit value of N +1 is taken as the trolley number result); the calculation formula of the trolley advancing speed control program is that the advancing speed V = (the initial position L of the trolley + the trolley material searching advancing distance H)/the fixed time T of each trolley.
Compared with the prior art, the invention has the advantages that:
1. the material dragging trolley searches for a steel rail through the position sensing device 10, after the steel rail is found, the material dragging trolley enters the position right below the steel rail, the hydraulic device 5 drives the lifting platform 6 to lift up and lift the steel rail, the material shifting of the steel rail is realized under the traction of the chain 3, and the automatic material searching and shifting can be realized by preparing materials and reserving any gap between adjacent steel rails.
2. After the trolley position sensing device 10 finds the steel rail, the trolley enters the position under the steel rail, under the traction of the chain, the travelling speed of the trolley far away from the working roller way is high, the travelling speed of the trolley near the working roller way is low, a plurality of material dragging trolleys with different distances reach the working roller way at the same time within a fixed time T, and the automatic righting and material stirring operation of the inclined steel rail can be realized while the material dragging is finished.
3. The control system calculates the number N of the working trolleys according to the length D of the steel rail, and divides the result of the travelling distance H + the initial position L of the trolleys by the fixed time T, so that the control system automatically calculates the material dragging moving speed V of each trolley, the steel rail is automatically straightened when moving to the station of the working roller way, and the steel rail is prevented from impacting the working roller way.
4. The lifting platform is lifted under the guiding action of the guide rod 7, and the lifting is stable; the steel rail is limited and clamped by the L-shaped fixed stop shoulder 8 and the spring stop pin assembly 9, and the spring stop pin assembly 9 is automatically popped out to prevent the steel rail from sliding off in the material dragging process, so that the steel rail is stable and reliable.
5. The automatic steel rail shifting mechanism can automatically calculate the number of trolleys, automatically find the steel rails, automatically lift the steel rails, automatically align the steel rails, automatically and accurately complete steel rail shifting, and inclined or zero-clearance steel rail placement does not influence shifting and feeding of the mechanism.
Drawings
Fig. 1 is a schematic view of a use state of a steel rail feeding platform in the prior art.
Fig. 2 is a top view of a prior art lower rail distribution and feeding mechanism.
Fig. 3 is a front view of fig. 2 in accordance with the prior art.
Fig. 4 is a schematic view of a matching structure of a trolley roller and a rack in fig. 2 in the prior art.
Fig. 5 is a schematic view of the use state of the steel rail feeding platform of the steel rail distributing and feeding mechanism.
FIG. 6 is a schematic view of a trolley structure of the steel rail distributing and feeding mechanism of the present invention.
Fig. 7 is a top view of fig. 6 in accordance with the present invention.
Fig. 8 is a schematic diagram of a matching structure of the trolley roller and the material rack in fig. 6.
FIG. 9 is a diagram showing the stopping state of the cart after the cart sensing device successfully searches for the materials.
FIG. 10 is a view showing the trolley of the present invention stopped after it has entered under the rails.
FIG. 11 is a view showing the lifting of the trolley lifting platform to lift the steel rail out of the plane of the material rack.
FIG. 12 is a diagram showing the trolley dragging the rail to the working table.
Fig. 13 is a state diagram of the lifting platform descending after the trolley moves the steel rail to the working roller way.
Detailed Description
Specific embodiments of the present invention are described below in conjunction with fig. 5-13.
The following examples are given to facilitate a better understanding of the invention, but do not limit the invention. The following examples are only a part of the present invention, and not all of them. The components and materials used in the following examples are commercially available unless otherwise specified.
In the present invention, unless otherwise explicitly specified or limited, unless otherwise stated to the contrary, directional words included in the terms "upper, lower, left, right, inner, outer, top, bottom, vertical, horizontal" and the like are merely indicative of the orientation of the term in the normal use state, or for the convenience of describing the present invention and simplifying the description, or for the colloquial understanding of those skilled in the art, and should not be construed as limiting the technical solutions unless otherwise explicitly specified or limited.
In addition, in the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected, and mechanically connected; may be directly connected or may be indirectly connected through other intermediate members. The specific meanings of the above terms in the present invention should be understood in a specific case to those skilled in the art.
The automatic distributing and feeding method of the automatic distributing and feeding mechanism for the steel rails is characterized by comprising the following steps of:
s1, calculating the number of trolleys: (as shown in fig. 5), the length D of the steel rail is input into a control panel of the PLC, and the system automatically calculates and selects a corresponding number of material dragging trolleys in a corresponding area to enter a working state according to the length D of the steel rail;
specifically, the method comprises the following steps: the trolley number calculation control program calculates the required trolley number according to the rail length D manually input in the state shown in fig. 5. The calculation formula of the trolley number calculation control program is that the trolley number is N = the length D of the steel rail/the distance D of the trolleys (when N is an integer, the value of the trolley number result is N; when N is a decimal, the value of the integral bit value of N +1 is taken as the trolley number result). For example, when the calculation result N = D/D =2.3, the final value of the number of the cars is an integer 2+1, i.e., 3 cars.
S2, sensing the position of the steel rail: all the trolleys move towards the steel rails of the material rack on the right side respectively under the traction of the chains 3, when the position sensing device 10 is close to the steel rails and identifies the steel rails, the trolleys slow down and stop moving forwards, and other trolleys which do not sense the steel rails continue moving forwards until all the material dragging trolleys identify the steel rails and stop moving; (as shown in FIG. 9)
S3, entering the position right below the steel rail: taking the signal, which is obtained after the position sensing device 10 of the last trolley senses the steel rail and stops in the step S2, as a trigger signal, the PLC controller controls the chain 3 to continuously drag the trolleys to move forward by a fixed length, so that all the working trolleys enter the position right below the rail bottom of the steel rail; (as shown in FIG. 10)
S4, lifting the lifting platform 6 by the trolley to separate the steel rail from the plane of the material rack: after all the trolleys in the step S3 move to the position right below the steel rail, all the trolleys jack up the steel rail upwards at the same time, so that the steel rail is separated from the material rack platform; (as shown in FIG. 11)
S5, moving the steel rail to a working roller way: a PLC controller of the PLC control system automatically calculates the moving speed V of each trolley according to the distance between each trolley and a working roller station, a chain drags each trolley to move a steel rail to the working roller station within the same time period T at different speeds V, and when all the trolleys reach the working roller station at the same time, the automatic righting of the inclined steel rail is just realized; when the steel rail moves to a working roller way, the stop pin 902 automatically bounces when the spring stop pin assembly 9 which can automatically bounce and lift on one side of the circular tray 601 does not have a shielding object, so that the steel rail is prevented from sliding off the circular tray 601 in the moving process of the trolley; (as shown in FIG. 12)
Specifically, the method comprises the following steps: the calculation formula of the trolley advancing speed control program is that each trolley advancing speed V = (the initial position L of the trolley + the trolley searching advancing distance H)/fixed time T. Used for calculating the different forward tow moving speed of each trolley in the process that each trolley moves from the state shown in figure 12 to the working roller station of figure 5. So as to be suitable for the automatic straightening and dragging treatment of the inclined track.
S6, trolley falling: when the steel rails are righted and reach the working roller way in the step S5, after all the trolley lifting platforms 6 descend to return to the initial positions, the material dragging operation of the next steel rail is prepared; (as shown in FIG. 13)
And S7, repeating the steps S1 to S6 and circulating the steps until the automatic distribution and feeding of all the steel rails are completed.
The automatic distribution and feeding mechanism used in the method is also included. The automatic distributing and feeding mechanism for the steel rails is mainly applied to the automatic distributing and feeding mechanism for the steel rails in the full-section heat treatment of the steel rail forging and pressing section.
Automatic material loading is allocated just enough to include lift platform 6, 6 up end of lift platform links firmly terminal surface under the circular tray 601, hydraulic means 5's hydraulic piston rod passes the backup pad 1 plate body perpendicularly, and the vertical welding of the body of rod on the hydraulic piston rod links firmly terminal surface under the circular tray 601, terminal surface is solid even as an organic whole with the lift platform up end simultaneously under the circular tray 601. The hardness of the circular tray 601 is lower than that of the rail, so that the steel rail is prevented from being damaged, and anti-skid grains are arranged on the upper end face of the circular tray 601. Preventing the sliding displacement of the steel rail.
In the above embodiment, further: the automatic steel rail distribution and feeding mechanism comprises a support plate 1 (shown in figures 6 and 7), wherein the support plate 1 is made of steel plates into a groove-shaped structure. The bottom of the supporting plate 1 is provided with a roller 2, and the vertical plates on the left and right sides of the plate body of the supporting plate 1 are hung and fixedly connected with a chain 3 through a horizontal connecting plate and a connecting plate hanging hole.
The mechanism of the invention is improved in that: the automatic steel rail distributing and feeding mechanism comprises a supporting plate 1, wherein a hydraulic device 5 is installed at the bottom of the middle of a plate body of the supporting plate 1, the hydraulic device 5 is a hydraulic cylinder, and a hydraulic piston rod of the hydraulic cylinder is vertically arranged upwards. And a hydraulic piston rod of the hydraulic device 5 vertically penetrates through a plate body through hole of the supporting plate 1, and the upper end of the hydraulic piston rod is vertically and fixedly connected with the lifting platform 6. The lifting platform 6 is driven by a hydraulic cylinder to lift in the vertical direction.
The left side and the right side of the bottom end of the lifting platform 6 are respectively and vertically fixedly connected with the top end of a guide rod 7, and the bottom end of the guide rod 7 is vertically inserted into a vertical guide through hole formed in a plate body of the supporting plate 1 and is in sliding friction fit with the vertical guide through hole; the lifting platform 6 is vertically and stably lifted under the vertical guiding action of the guide rod 7.
The left side of the lifting platform 6 (shown in fig. 6 and 7) is provided with a fixed stop shoulder 8 which is higher than the platform in an L shape and prevents the steel rail from sliding down from the left side. And a spring catch pin assembly 9 which can automatically pop up and lift vertically above the lifting platform is arranged on the right side of the lifting platform 6. The spring catch pin assembly 9 is automatically popped out to be used for blocking and limiting the right side end of the steel rail, so that the steel rail is prevented from sliding off from the right side.
In the above embodiment, further: the automatic steel rail distributing and feeding mechanism comprises a spring catch pin assembly 9, the spring catch pin assembly 9 comprises a spring sleeve 901, a compression spring and a catch pin 902, the upper end of the spring sleeve 901 is open and vertically installed on the lower end face of the lifting platform 6, the compression spring is installed in a sleeve body of the spring sleeve 901, the compressed upper end of the compression spring is coaxially welded and fixedly connected with the lower end of the catch pin 902, and the catch pin 902 vertically penetrates out of the upper end face of a plate body of the lifting platform 6 and can be lifted elastically. When the stop pin 902 is popped up, the upper end of the stop pin is higher than the upper end surface of the lifting platform 6, and the right end of the steel rail is limited and blocked by the stop pin 902 which is automatically popped up, so that the steel rail is prevented from sliding off from the right side.
And a steel rail position sensing device 10 for upward detection and sensing is vertically arranged on the upper end surface of the vertical plate body on the right side of the supporting plate 1. The installation height of the induction device 10 can be slightly lower than the upper end surface of the lifting platform 6. And ensures that there is no obstruction above the sensing device 10 to detect and locate the rail. The sensing device 10 can be a photoelectric switch, when a signal at the transmitting end of the photoelectric switch is shielded by the steel rail in the state shown in fig. 9, the trolley finds the steel rail, at the moment, the photoelectric switch triggers the chain driving device to stop running, and the trolley stops in front of the steel rail at a certain distance (in the state shown in fig. 9). After waiting a fixed distance, just under the first rail (as shown in fig. 10).
In the above embodiment, further: automatic feed mechanism that allocates of rail includes control system, control system includes the PLC controller, position sensing device 10 connects the PLC controller input, the drive arrangement of chain 3 is connected to the PLC controller output, and the drive arrangement of chain 3 specifically can be gear motor. When the position sensing device 10 detects the steel rail, a stop signal is triggered to the driving device of the chain 3, so that the speed reduction motor of the chain driving device is decelerated and stops running. So that the trolley is stopped at a certain distance in front of the rails (as shown in figure 9). When all the trolleys detect the steel rail and stop in front of the steel rail for a fixed distance, the signal of the steel rail detected by the position sensing device 10 of the last trolley is taken as a starting signal: the output end of the PLC is connected with the chain driving device and triggers the chain driving device to operate again, and all the in-place trolleys are driven and dragged by the chain to synchronously move for a fixed distance to enter the position right below the steel rail and then stop (as shown in the state of fig. 10). After all the trolleys stop, the signal is taken as a starting signal, the output end of the PLC is connected with the input end of the hydraulic device 5, and a hydraulic cylinder piston rod of the hydraulic device 5 is triggered to lift the steel rail (as shown in the state of fig. 11).
In the above embodiment, further: the automatic steel rail distribution and feeding mechanism comprises a control system, and the control system comprises a PLC (programmable logic controller) and a control program.
The control program comprises a trolley number calculation control program and a trolley advancing speed control program. The trolley number calculation control program calculates the required trolley number according to the rail length D manually input in the state shown in fig. 5. The calculation formula of the trolley number calculation control program is that the trolley number is N = the length D of the steel rail/the distance D of the trolleys (when N is an integer, the value of the trolley number result is N; when N is a decimal, the value of the integral bit value of N +1 is taken as the trolley number result). For example, when the calculation result N = D/D =2.3, the final value of the number of the cars is an integer 2+1, i.e., 3 cars.
The calculation formula of the trolley advancing speed control program is that the advancing speed V = (the initial position L of the trolley + the trolley material searching advancing distance H)/the fixed time T of each trolley. Used for calculating the different forward tow moving speed of each trolley in the process that each trolley moves from the state shown in figure 12 to the working roller station of figure 5. So as to be suitable for the automatic straightening and dragging treatment of the inclined track.
Wherein the initial position L of the trolley is the distance from the working roller way before the trolley (as shown in figure 5) finds the material. The trolley material finding travel distance H is the distance between the trolley and the steel rail before the trolley (shown in figure 5) material finding. L + H is the distance between the trolley and the working table station before the trolley (in the state shown in fig. 11) finds the steel rail and enters the position right below the steel rail and supports the steel rail to prepare for dragging. And dividing the value of L + H by the fixed time T to obtain V, namely the dragging forward moving speed of each trolley. The trolleys with long distance are fast in moving speed, the trolleys with short distance are slow in moving speed, and in short, the trolleys with different advancing speeds can just synchronously stop at the station destination of the working roller table at the same time within the fixed time T. The automatic arrangement and material dragging of the inclined steel rail are achieved.
The working principle of the invention is as follows: step S1, calculating the number of trolleys: s2, sensing the position of the steel rail; s3, entering the lower part of the steel rail; s4, lifting the lifting platform 6 by the trolley to separate the steel rail from the plane of the material rack; s5, moving the steel rail to a working roller way; s6, falling all trolleys back; s7, repeating the steps S1 to S6 and circulating. And finishing the automatic distribution and feeding of all the steel rails.
From the above description it can be found that: the material dragging trolley searches for a steel rail through the induction device 10, after the steel rail is found, the material dragging trolley enters the lower part of the steel rail, the hydraulic device 5 drives the lifting platform 6 to lift up and lift the steel rail, the material shifting of the steel rail is realized under the traction of the chain 3, and the material shifting can be realized at any intervals of the prepared material of the steel rail.
After the trolley position sensing device 10 finds the steel rail, the trolley enters the position under the steel rail, under the traction of the chain, the travelling speed of the trolley far away from the working roller way is high, the travelling speed of the trolley near the working roller way is low, a plurality of material dragging trolleys with different distances reach the working roller way at the same time within a fixed time T, and the automatic righting and material stirring operation of the inclined steel rail can be realized while the material dragging is finished.
The control system calculates the number N of the working trolleys according to the length D of the steel rail, divides the result obtained according to the travelling distance H + the initial position L of the trolleys by the fixed time T, and automatically calculates the moving speed V of the trolleys, so that the steel rail is automatically aligned when moving to the working roller way, and the steel rail is prevented from impacting the working roller way.
The lifting platform is lifted under the guiding action of the guide rod 7, and the lifting is stable; the steel rail is limited and clamped by the L-shaped fixed stop shoulder 8 and the spring stop pin assembly 9, and the spring stop pin assembly 9 is automatically popped out to prevent the steel rail from sliding off in the material dragging process, so that the steel rail is stable and reliable.
In conclusion, the automatic material shifting and aligning mechanism can automatically calculate the number of trolleys, automatically find the steel rails, automatically lift the steel rails, automatically align the steel rails, automatically and accurately complete material shifting of the steel rails, and the inclined or zero-clearance steel rails are placed without influencing material shifting and feeding of the mechanism, so that the technical problems of automatic material shifting and automatic aligning of the zero-clearance inclined steel rails are solved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description is described in terms of one embodiment, this embodiment does not include only a single embodiment, but such description is merely for clarity, and those skilled in the art will recognize that the embodiments described in this embodiment can be combined as appropriate to form other embodiments as would be understood by those skilled in the art.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.
Claims (6)
1. The automatic distributing and feeding method of the automatic distributing and feeding mechanism for the steel rails is characterized by comprising the following steps of:
s1, calculating the number of trolleys: inputting the length D of the steel rail into a control panel of the PLC, and automatically calculating and selecting a corresponding number of dragging trolleys in a corresponding area to enter a working state by the system according to the length D of the steel rail;
s2, sensing the position of the steel rail: all the trolleys move towards the steel rails of the material rack on the right side respectively under the traction of the chains (3), when the position sensing device (10) is close to the steel rails and identifies the steel rails, the trolleys decelerate to stop moving forwards, and other trolleys which do not sense the steel rails continue to move forwards until all the material dragging trolleys identify the steel rails and stop moving;
s3, entering the position right below the steel rail: taking the signal which is induced by the position sensing device (10) of the last trolley in the step S2 and stops as a trigger signal, and controlling the chain (3) to continuously drag the trolleys to move forwards for a fixed length by the PLC controller so that all the working trolleys enter the position right below the rail bottom of the steel rail;
s4, lifting the lifting platform (6) by the trolley to separate the steel rail from the plane of the material rack: after all the trolleys in the step S3 move to the position right below the steel rail, all the trolleys jack up the steel rail upwards at the same time, so that the steel rail is separated from the material rack platform;
s5, moving the steel rail to a working roller way: a PLC controller of the PLC control system automatically calculates the moving speed V of each trolley according to the distance between each trolley and a working roller station, a chain drags each trolley to move a steel rail to the working roller station within the same time period T at different speeds V, and when all the trolleys reach the working roller station at the same time, the automatic righting of the inclined steel rail is just realized; when the steel rail moves to a working roller way, the stop pin (902) automatically bounces when the spring stop pin assembly (9) which can automatically bounce and lift on one side of the circular tray (601) has no shielding object, so that the steel rail is prevented from sliding off the circular tray (601) in the moving process of the trolley;
s6, trolley falling: when the steel rails are righted and reach the working roller way in the step S5, after all the trolley lifting platforms (6) descend to return to the initial position, the material dragging operation of the next steel rail is prepared;
and S7, repeating the steps S1 to S6 and circulating the steps until the automatic distribution and feeding of all the steel rails are completed.
2. The automatic steel rail distributing and feeding mechanism used in the method according to claim 1, characterized in that: the mechanism comprises a lifting platform (6), the upper end face of the lifting platform (6) is fixedly connected with the lower end face of the circular tray (601), a hydraulic piston rod of the hydraulic device (5) vertically penetrates through a plate body of the supporting plate (1), the upper end of the hydraulic piston rod is fixedly connected with the lower end face of the circular tray (601), the hardness of the circular tray (601) is lower than that of a track, and anti-skid grains are arranged on the upper end face of the circular tray (601).
3. The automatic distributing and feeding method of the automatic steel rail distributing and feeding mechanism according to claim 1: the mechanism comprises a supporting plate (1), idler wheels (2) are installed at the bottom of the supporting plate (1), and chains (3) are connected to the left side and the right side of a plate body of the supporting plate (1), and the mechanism is characterized in that: the hydraulic device (5) is installed at the bottom of the middle of the plate body of the supporting plate (1), a hydraulic piston rod of the hydraulic device (5) vertically penetrates through the plate body of the supporting plate (1), the upper end of the hydraulic piston rod is vertically and fixedly connected with a lifting platform (6), the left side and the right side of the bottom end of the lifting platform (6) are vertically and fixedly connected with guide rods (7), and the bottoms of the guide rods (7) are vertically inserted into vertical guide through holes formed in the plate body of the supporting plate (1) and are in sliding friction fit with the; a fixed stop shoulder (8) which is higher than the lifting platform in an L shape is arranged on the left side of the lifting platform (6), and a spring stop pin assembly (9) which can automatically pop up and vertically lift higher than the lifting platform is arranged on the right side of the lifting platform (6); and a steel rail position sensing device (10) for detecting and sensing upwards is vertically arranged on the upper end surface of the plate body on the right side of the supporting plate (1).
4. The automatic distributing and feeding method of the automatic distributing and feeding mechanism for the steel rails according to claim 1, characterized in that: the mechanism comprises a spring catch pin assembly (9); the spring catch pin assembly (9) comprises a spring sleeve (901), a compression spring and a catch pin (902), the upper end of the spring sleeve (901) is open and is vertically installed on the lower end face of the lifting platform (6), the compression spring is installed in the sleeve body of the spring sleeve (901), the compressed upper end of the compression spring is fixedly connected with the lower end of the catch pin (902), and the upper end of the catch pin (902) is higher than the upper end face of the lifting platform (6) when the catch pin (902) is popped up.
5. The automatic distributing and feeding method of the automatic distributing and feeding mechanism for the steel rails according to claim 1, characterized in that: the mechanism comprises a control system, the control system comprises a PLC (programmable logic controller), the induction device (10) is connected with the input end of the PLC, the output end of the PLC is connected with the driving device of the chain (3), and the output end of the PLC is further connected with the input end of the hydraulic device (5).
6. The automatic distributing and feeding method of the automatic distributing and feeding mechanism for the steel rails according to claim 1, characterized in that: the mechanism comprises a control system, wherein the control system comprises a PLC (programmable logic controller) and a control program, and the control program comprises a trolley number calculation control program and a trolley advancing speed control program; the calculation formula of the trolley number calculation control program is that the trolley number is N = the length D of the steel rail/the distance D of the trolleys (when N is an integer, the value of the trolley number result is N; when N is a decimal, the value of the integral bit value of N is + 1); the calculation formula of the trolley advancing speed control program is that the advancing speed V = (the initial position L of the trolley + the trolley material searching advancing distance H)/the fixed time T of each trolley.
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| CN202011539260.8A CN112551123B (en) | 2020-12-23 | 2020-12-23 | Automatic distributing and feeding mechanism and method for steel rails |
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| CN202011539260.8A CN112551123B (en) | 2020-12-23 | 2020-12-23 | Automatic distributing and feeding mechanism and method for steel rails |
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| CN112551123B CN112551123B (en) | 2022-03-15 |
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| CN111453364A (en) * | 2020-04-26 | 2020-07-28 | 浙江精功科技股份有限公司 | Automatic overturning and transverse moving equipment for long component |
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| JPH03276861A (en) * | 1990-02-15 | 1991-12-09 | Daifuku Co Ltd | Traveling equipment using movable body |
| CN201231980Y (en) * | 2008-05-29 | 2009-05-06 | 攀钢集团冶金工程技术有限公司 | Steel bar splitting rack for steel rail feeding |
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| CN112551123B (en) | 2022-03-15 |
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