Coil strip transfer device and method

Abstract

The present application relates to a kind of coil strip transfer device and transfer method, coil strip transfer device includes transfer trolley, two columns connected on transfer trolley and upper clamping seat and lower clamping seat connected on two columns, two columns are provided with respectively driving lower clamping seat two ends up and down synchronous movement lifting drive, upper clamping seat and lower clamping seat are also connected with each other by first transmission chain and second transmission chain, utilize first transmission chain and second transmission chain to tow upper clamping seat and lower clamping seat synchronous lifting, while using two passive chains to limit two lifting drive synchronous action, finally realize the accurate clamping of upper clamping seat and lower clamping seat to coil strip, on the basis of pre-adjusting the coaxial degree of upper clamping seat and lower clamping seat clamping center and unwinding device unwinding shaft, when coil strip assembly is transferred to unwinding shaft using the coil strip transfer device described in the present application, no height calibration is needed, so as to improve the assembly efficiency of coil strip.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of workshop material conveying, and particularly relates to a coiled strip steel transfer device and a transfer method. BACKGROUND

[0002] Coiled strip steel is a commonly used raw material in the pipe manufacturing field. The coiled strip steel is usually installed on a unwinding device for unwinding. The unwound strip steel is gradually formed into a pipe by a pipe manufacturing mechanism. After the coiled strip steel is unwound, a new coiled strip steel needs to be installed on the unwinding device in time, and the strip steel head is led out to be welded with the tail end of the previous strip steel. Since there is a strip steel unwinding buffer downstream of the strip steel unwinding device, a certain length of strip steel can be stored in the buffer for production. The operator must complete the work of welding the new strip steel head with the tail end of the previous strip steel before the strip steel in the unwinding buffer is consumed, otherwise the new strip steel head cannot be brought into the pipe manufacturing mechanism, and manual traction is required, which will waste a lot of production time.

[0003] The conventional transfer method of the coiled strip steel is to use a forklift or a crane for transfer. These methods have the problems of slow alignment speed with the unwinding shaft of the unwinding device, slow hoisting speed, and slow transfer speed. These technical problems eventually lead to a long time consumed for replacing the coiled strip steel, which seriously erodes the time for the operator to connect two strip steels.

[0004] In order to provide more welding time for the operator, it is necessary to provide a coiled strip steel transfer device to improve the speed of replacing the new strip steel to the unwinding device and compress the time for replacing the coiled strip steel. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a coiled strip steel transfer device to solve the technical problem that the conventional coiled strip steel transfer device needs to be position corrected when assembling the coiled strip steel to the unwinding shaft of the strip steel unwinding device, thereby leading to a long time consumed for replacing the coiled strip steel.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is: the winding strip steel transfer device, comprising a transfer trolley, the transfer trolley is connected with a vertical column arranged on both sides, the two vertical columns are opposite to each other and the top ends are connected by a cross beam, an upper clamping seat and a lower clamping seat are arranged between the two vertical columns, the two ends of the upper clamping seat and the lower clamping seat are respectively connected with the vertical columns in sliding mode, a lifting drive is fixedly connected to the outer side of each vertical column, the driving end of the two lifting drives is connected with the two ends of the lower clamping seat respectively, the lower clamping seat is driven to lift, a pair of chain wheels is rotatably connected to the two ends of the cross beam respectively, a chain wheel is rotatably connected to the bottom of the transfer trolley on both sides, the lower clamping seat and the upper clamping seat are connected with each other in transmission mode by a first transmission chain and a second transmission chain, the first transmission chain and the second transmission chain are arranged along the movement direction of the transfer trolley, the first transmission chain comprises a right end of the lower clamping seat connected at one end, a chain wheel passing through the two ends of the cross beam in the middle, a driving chain connected with the left end of the upper clamping seat at the other end, and a passive chain connected with the left end of the lower clamping seat at the other end; the second transmission chain comprises a left end of the lower clamping seat connected at one end, another two chain wheels passing through the two ends of the cross beam in the middle, a driving chain connected with the right end of the upper clamping seat at the other end, and a passive chain connected with the right end of the lower clamping seat at the other end.

[0007] As a preferred scheme, the left and right ends of the lower clamping seat are respectively connected with a horizontally arranged positioning plate, a vertical adjusting screw is inserted into any positioning plate, two nuts arranged on both sides of the positioning plate are connected with any adjusting screw, the two nuts clamp the positioning plate to fix the adjusting screw, the position of the two nuts is adjusted to change the length of the lower end of the adjusting screw extending out of the positioning plate, the lower end of the adjusting screw is used to connect the corresponding passive chain, and the two driving chains above the cross beam are respectively connected with chain tensioners.

[0008] As a preferred solution, the column is a square tube structure, and a pair of rollers is rotationally connected to the two ends of the upper clamping seat respectively, and the two pairs of rollers are respectively abutted on the facing surfaces of the two columns, the two rollers abutting against the same column are arranged in an up-down manner, and a vertically extending upper long hole is formed on the facing surface of each of the two columns, the upper long hole is located at the upper part of the column, the length of the upper long hole corresponds to the lifting interval of the upper clamping seat, a connecting seat inserted into the column through the upper long hole is connected to the upper clamping seat, the connecting seat is used for connecting the driving chain and the driven chain, and the driving chain and the driven chain connected to the two ends of the upper clamping seat through the sprocket are arranged in the column; the structure of the lower clamping seat connected to the column is the same as that of the upper clamping seat connected to the column, and a pair of ear plates extending to the outer side of the corresponding column is further connected to the two ends of the lower clamping seat respectively, and the driving ends of the two lifting drivers are connected to the ear plates at the two ends of the lower clamping seat respectively; a vertically extending lower long hole is further formed on the facing surface of each of the two columns, the lower long hole is located at the lower part of the column, and the length of the lower long hole corresponds to the lifting interval of the lower clamping seat.

[0009] As a preferred solution, a pair of limiting plates extending to the opposite sides of the two columns is arranged at the two ends of the upper clamping seat, any pair of limiting plates is opposite to the two side surfaces of the column, a sliding block in sliding abutment with the side surface of the column is connected to the surface of any limiting plate facing the column, and the free ends of the two limiting plates are connected to each other through a connecting plate; the ear plates at the two ends of the lower clamping seat opposite to each other are also connected to each other through a connecting plate, the connecting plate is located at the opposite sides of the two columns, any pair of ear plates is arranged on the two sides of the column, and a sliding block in sliding abutment with the side surface of the column is connected to the surface of any ear plate facing the column.

[0010] As a preferred solution, a groove for embedding the coiled strip steel is arranged on the facing side of the upper clamping seat and the lower clamping seat respectively, and the bottom surface of the groove is a circular arc surface or a plurality of continuous flat surfaces.

[0011] As a preferred solution, the transfer trolley is in an I-shaped type, and comprises left and right carriages parallel to each other and a connecting frame connecting the left and right carriages, the two columns are respectively connected to the middle parts of the left and right carriages, the two ends of the left and right carriages are respectively connected to support rods extending to the connected columns, the upper ends of the support rods are connected to the middle parts of the columns, the upper middle parts of the two columns are respectively connected to driving seats extending in opposite directions, the lifting drivers are respectively connected to the two driving seats and connected to the columns through the two driving seats.

[0012] As a preferred solution, at least two I-shaped wheels are respectively connected to the bottom parts of the left and right carriages, the transfer trolley travels along a track laid on the ground, the track cooperates with the I-shaped wheels, a walking driver is respectively connected to the left and right carriages, the walking driver is in transmission connection with the I-shaped wheels to drive the I-shaped wheels to rotate and drive the transfer trolley to move.

[0013] As a preferred solution, the lifting drive is an oil cylinder or an electric push rod or a worm screw lifting machine.

[0014] The further technical problem solved by the present application is to provide a coiled strip steel transfer method based on the coiled strip steel transfer device to solve the technical problem of long time consumption in traditional coiled strip steel transfer.

[0015] To solve the above technical problems, the technical solution adopted by the present application is that the coiled strip steel transfer method based on the coiled strip steel transfer device comprises the following specific steps:

[0016] a. The coiled strip steel is inserted and connected on the horizontally arranged suspension beam for storage, the suspension beam passes through the center hole of the coiled strip steel, the axial direction of the suspension beam is parallel to the movement direction of the transfer trolley, the coiled strip steel on the suspension beam is opposite to the clamping space between the upper clamping seat and the lower clamping seat, the side of the transfer trolley away from the suspension beam is provided with a strip steel unwinding device unwinding shaft, and the shaft center of the unwinding shaft is coaxial with the clamping center of the upper clamping seat and the lower clamping seat;

[0017] b. The transfer trolley is driven to move to the side of the suspension beam, so that the coiled strip steel hung on the outermost end of the suspension beam is just located between the upper clamping seat and the lower clamping seat;

[0018] c. The two lifting drives are controlled to drive the lower clamping seat to rise, the lower clamping seat drives the upper clamping seat to synchronously descend through the chain transmission, and the coiled strip steel is clamped;

[0019] d. The transfer trolley is reversely driven to move, drive the clamped coiled strip steel to move to the strip steel unwinding device, and finally sleeve the coiled strip steel on the unwinding shaft of the strip steel unwinding device;

[0020] e. The two lifting drives are controlled to drive the lower clamping seat to descend, and the upper clamping seat is synchronously raised to release the coiled strip steel, the transfer trolley is driven to move away from the strip steel unwinding device, and the transfer of the coiled strip steel is completed.

[0021] As a preferred solution, the center shaft of the coiled strip steel hung on the suspension beam is lower than the clamping center of the upper clamping seat and the lower clamping seat.

[0022] The beneficial effects of the present application are: the present application utilizes the first transmission chain and the second transmission chain to synchronously lift the upper clamping seat and the lower clamping seat, simultaneously utilizes two passive chains to limit the synchronous action of the two lifting drivers, and finally realizes the accurate clamping of the upper clamping seat and the lower clamping seat on the coiled strip, on the basis of pre-adjusting the coaxiality of the clamping centers of the upper clamping seat and the lower clamping seat and the unwinding shaft of the unwinding device, when the coiled strip transfer device is used to transfer the coiled strip and assemble the coiled strip on the unwinding shaft, height calibration is not needed, thereby improving the assembly efficiency of the coiled strip, and when the coiled strip transfer device is further matched with the rail through the spool, the movement route of the coiled strip transfer device is limited by the matching of the rail and the spool, the left-right position calibration needed by the coiled strip transfer device before assembling the coiled strip on the unwinding shaft is further omitted, and the assembly efficiency of the coiled strip is further improved.

[0023] The coiled strip transfer method adopted by the present application stores the coiled strip on the suspension beams, the two suspension beams and the unwinding device are arranged at two ends of the transfer path of the coiled strip transfer device, so that the coiled strip transfer device is used to quickly clamp the coiled strip on the suspension beam, quickly transfer in a straight line to the unwinding device, and quickly install the coiled strip on the unwinding shaft, thereby greatly shortening the assembly efficiency of the coiled strip and leaving enough time for the operator to connect two new strips and the previous strip. BRIEF DESCRIPTION OF DRAWINGS

[0024] The specific embodiments of the present application will be further described in detail below in combination with the drawings, in which:

[0025] Figure 1 is a schematic diagram of the three-dimensional structure of the coiled strip transfer device of example 1;

[0026] Figure 2 is a schematic diagram of the connection structure of the first transmission chain of example 1;

[0027] Figure 3 is a schematic diagram of the connection structure of the second transmission chain of example 1;

[0028] Figure 4 is an implementation state top view of the coiled strip transfer method of example 2;

[0029] Figures 1-4Components: 1. Transfer trolley; 101. Left frame; 102. Right frame; 103. Connecting frame; 2. Column; 3. Crossbeam; 4. Upper clamping seat; 5. Lower clamping seat; 6. Lifting drive; 7. Sprocket; 8. Drive chain; 9. Driven chain; 10. Positioning plate; 11. Adjusting screw; 12. Nut; 13. Chain tensioner; 14. Roller; 15. Upper elongated hole; 16. Connecting seat; 17. Ear plate; 18. Lower elongated hole; 19. Limiting plate; 20. Slider; 21. Connecting plate; 22. Groove; 23. Support rod; 24. Drive seat; 25. I-beam wheel; 26. Track; 27. Travel drive; 28. Cantilever beam; 29. ​​Unwinding shaft; 100. Coiled strip steel transfer device. Detailed Implementation

[0030] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Example 1

[0031] like Figures 1-3 The coiled strip steel transfer device 100 shown includes a transfer trolley 1. A vertically arranged column 2 is connected to each side of the transfer trolley 1. The two columns 2 face each other and are connected at their top ends by a crossbeam 3. An upper clamping seat 4 and a lower clamping seat 5 are arranged between the two columns 2. The two ends of the upper clamping seat 4 and the lower clamping seat 5 are slidably connected to the two columns 2. A lifting drive 6 is fixedly connected to the outside of each column 2. The driving ends of the two lifting drive 6 are connected to the two ends of the lower clamping seat 5, driving the lower clamping seat 5 to rise and fall. A pair of sprockets 7 are rotatably connected to the two ends of the crossbeam 3. A sprocket 7 is rotatably connected to each side of the bottom of the transfer trolley 1. The lower clamping seat 5 and the upper clamping seat 4 are connected by a first transmission chain and a second transmission chain, respectively. The first and second transmission chains are interconnected and arranged along the direction of movement of the transfer trolley 1. The first transmission chain includes a drive chain 8 with one end connected to the right end of the lower clamping seat 5, the middle part passing around the sprockets 7 at both ends of the crossbeam 3, and the other end connected to the left end of the upper clamping seat 4. It also includes a passive chain 9 with one end connected to the left end of the upper clamping seat 4, the middle part passing around the sprocket 7 at the bottom left side of the transfer trolley 1, and the other end connected to the left end of the lower clamping seat 5. The second transmission chain includes a drive chain 8 with one end connected to the left end of the lower clamping seat 5, the middle part passing around the other two sprockets 7 at both ends of the crossbeam 3, and the other end connected to the right end of the upper clamping seat 4. It also includes a passive chain 9 with one end connected to the right end of the upper clamping seat 4, the middle part passing around the sprocket 7 at the bottom right side of the transfer trolley, and the other end connected to the right end of the lower clamping seat 5.

[0032] The active chain 8 is used to drive the left end of the upper clamping seat 4 and the right end of the lower clamping seat 5, and the right end of the upper clamping seat 4 and the left end of the lower clamping seat 5 to perform synchronous reverse action. The passive chain 9 is used to drive the same end of the upper clamping seat 4 and the lower clamping seat 5 to perform synchronous reverse action. The first transmission chain and the second transmission chain both include the active chain 8 and the passive chain 9, and can realize that when any one lifting driver 6 drives one end (for example, the left end) of the lower clamping seat 5 to move, the other end (for example, the right end) of the upper clamping seat 4 and the lower clamping seat 5 is simultaneously driven to move synchronously, so that the two ends of the lower clamping seat 5 are kept synchronous lifting, the problem of asynchronous lifting of the two ends of the upper clamping seat 4 and the lower clamping seat 5 caused by the difference in synchronization of the two lifting drivers 6 is eliminated, the precision of synchronous movement of the upper clamping seat 4 and the lower clamping seat 5 is improved, and the center height of the coiled strip 30 clamped meets the requirements.

[0033] As shown in Figure 2 In the embodiment, the left and right ends of the lower clamping seat 5 are respectively connected with a horizontally arranged positioning plate 10. A vertical adjusting screw 11 is inserted into any one positioning plate 10. Two nuts 12 arranged on the two sides of the positioning plate 10 are connected with any one adjusting screw 11. The two nuts 12 clamp the positioning plate 10 to fix the adjusting screw 11. The position of the two nuts 12 is adjusted to change the length of the lower end of the adjusting screw 11 extending out of the positioning plate 10. The lower end of the adjusting screw 11 is used to connect the corresponding passive chain 9. The two active chains 8 above the cross beam 3 are respectively connected with a chain tensioner 13.

[0034] The connecting structure of the adjusting screw 11 and the nut 12 can be used to adjust the tension of the passive chain 9, or can be used to adjust the length of the passive chain 9. When used in cooperation with the chain tensioner 13, the connecting structure can be used to adjust the levelness of the two ends of the upper clamping seat 4 and the lower clamping seat 5. The chain tensioner 13 used in the embodiment 1 is preferably a flower basket screw structure. In actual application, other types of tensioners that can be used to adjust the tension of the chain can also be selected.

[0035] The first transmission chain and the second transmission chain are used to drive the upper clamping seat 4 and the lower clamping seat 5 to move synchronously. The two passive chains 9 are used to limit the synchronous movement of the two lifting drivers 6. Finally, the upper clamping seat 4 and the lower clamping seat 5 accurately clamp the coiled strip 30. On the basis of pre-adjusting the coaxiality of the clamping center of the upper clamping seat 4 and the lower clamping seat 5 and the unwinding shaft of the unwinding device, when the coiled strip transfer device 100 described in the embodiment is used to transfer the coiled strip 30 to the unwinding shaft, height calibration is not required, so that the assembly efficiency of the coiled strip is improved.

[0036] As shown in Figure 1 and Figure 2As shown, the column 2 is a square tube structure. A pair of rollers 14 are rotatably connected to both ends of the upper clamping seat 4. The two pairs of rollers 14 abut against the facing surfaces of the two columns 2 respectively. The two rollers 14 that abut against the same column 2 are arranged vertically. The upper clamping seat 4 moves up and down along the two columns 2 through the two pairs of rollers 14. A vertically extending upper elongated hole 15 is opened on the facing surfaces of the two columns 2. The upper elongated hole 15 is located on the upper part of the column 2. The length of the upper elongated hole 15 corresponds to the lifting range of the upper clamping seat 4. A connecting seat 16 is connected to the upper clamping seat 4, which passes through the upper elongated hole 15 and is inserted into the column 2. The connecting seat 16 is used to connect the driving chain 8 and the driven chain 9. The driving chain 8 and the driven chain 9, which pass around the sprocket 7 and are connected to both ends of the upper clamping seat 4, are both inserted into the column 2 to keep the chain clean and avoid chain contamination and increase transmission error. The structure of the lower clamping seat 5 connecting to the column 2 is the same as that of the upper clamping seat 4 connecting to the column 2. A pair of rollers 14 are rotatably connected to both ends of the lower clamping seat 5. The two pairs of rollers 14 on the lower clamping seat 5 abut against the facing surfaces of the two columns 2 respectively. The two rollers 14 that abut against the same column 2 are also arranged vertically. A pair of ear plates 17 extending to the outside of the corresponding column 2 are also connected to both ends of the lower clamping seat 5. The driving ends of the two lifting actuators 6 are respectively connected to the ear plates 17 at both ends of the lower clamping seat 5. A vertically extending lower elongated hole 18 is also opened on the facing surfaces of the two columns 2. The lower elongated hole 18 is located at the lower part of the column 2. The length of the lower elongated hole 18 corresponds to the lifting range of the lower clamping seat 5. A connecting seat 16 that passes through the lower elongated hole 18 and is inserted into the column 2 is connected to the lower clamping seat 5.

[0037] Both the upper clamping seat 4 and the lower clamping seat 5 abut against the two columns 2 via rollers 14. While ensuring that the upper clamping seat 4 and the lower clamping seat 5 can move smoothly up and down, they can also effectively limit the left and right movement of the upper clamping seat 4 and the lower clamping seat 5, thereby ensuring the clamping accuracy of the upper clamping seat 4 and the lower clamping seat 5 on the coiled strip steel 30.

[0038] like Figure 1 and Figure 2 As shown, the upper clamping seat 4 has a pair of limiting plates 19 extending to the opposite sides of the two columns 2 at both ends. Each pair of limiting plates 19 faces the opposite sides of the columns 2, and a slider 20 that slides against the side of the column 2 is connected to the surface of each limiting plate 19 facing the column 2. The free ends of the two limiting plates 19 are connected to each other via a connecting plate 21. The lower clamping seat 5 also has ear plates 17 facing each other at both ends, connected to each other via a connecting plate 21. The connecting plate 21 is located on the opposite sides of the two columns 2. Each pair of ear plates 17 is located on both sides of the column 2, and a slider 20 that slides against the side of the column 2 is connected to the surface of each ear plate 17 facing the column 2.

[0039] The limiting plates 19 and the sliding blocks 20 are used to limit the movement of the upper clamping seat 4 along the clamping central axis, while ensuring the smoothness of the sliding of the upper clamping seat 4. The connecting plate 21 can keep the position relationship of the two limiting plates 19 relative to the stand 2, and keep the limiting effect of the limiting plates 19.

[0040] In the embodiment, the opposite sides of the upper clamping seat 4 and the lower clamping seat 5 are respectively provided with grooves 22 for embedding the coiled strip steel. The bottom surface of the groove 22 is a circular arc surface or a plurality of continuous flat surfaces. When the coiled strip steel 30 is clamped, the upper and lower sides of the coiled strip steel 30 are respectively embedded in the two grooves 22, so that the coiled strip steel 30 can be coaxial with the clamping central axis of the upper clamping seat 4 and the lower clamping seat 5 when clamped.

[0041] As shown in Figure 1 In the embodiment, the transfer trolley 1 is in the shape of an I-beam, including left and right frames 101 and 102 which are parallel to each other, and a connecting frame 103 connecting the left and right frames 101 and 102. The two stands 2 are respectively connected to the middle parts of the left and right frames 101 and 102. The two ends of the left and right frames 101 and 102 are respectively connected with support rods 23 extending to the connected stands 2. The upper ends of the support rods 23 are connected with the middle parts of the stands 2. The middle parts of the two stands 2 are respectively connected with driving seats 24 extending in opposite directions. The lifting drives 6 are respectively connected to the two driving seats 24 and connected with the stands 2 through the two driving seats 24.

[0042] The support rods 23 are used to support the stands 2, which makes the structure of the stands 2 more stable. The stands are the main supporting parts of the upper clamping seat 4, the lower clamping seat 5 and the coiled strip steel 30. The stability of the stands directly affects the stability of the coiled strip steel 30 during the transportation and installation process, so as to avoid the shaking of the coiled strip steel 30 when it is assembled to the unwinding shaft.

[0043] As shown in Figure 1 and Figure 3 The bottom parts of the left and right frames 101 and 102 are respectively connected with at least two I-beams 25. The transfer trolley 1 runs along the tracks 26 laid on the ground. The tracks 26 cooperate with the I-beams 25. The left and right frames 101 and 102 are respectively connected with a walking drive 27. The walking drive 27 is in transmission connection with the I-beams 25 to drive the I-beams 25 to rotate and move the transfer trolley 1.

[0044] The cooperation of the tracks 26 and the I-beams 25 guides the transfer trolley to run along the tracks 26, which can effectively improve the position control during the transportation of the transfer trolley and ensure that the coiled strip steel 30 is coaxial with the unwinding shaft when the transfer trolley 1 moves to one end of the unwinding shaft. In this way, the left and right position calibration required by the coiled strip steel transfer device before the coiled strip steel 30 is assembled to the unwinding shaft can be further omitted, and the assembly efficiency of the coiled strip steel is further improved.

[0045] The lifting driver 6 described in the embodiment is preferably an oil cylinder, and in actual application, an electric push rod or a turbine screw lifting machine can also be used.

[0046] The working process of the embodiment is described with reference to Embodiment 2. Embodiment 2

[0047] As shown in Figure 4 Embodiment 1, the coiled strip steel transfer method based on the coiled strip steel transfer device 100 described in Embodiment 1 comprises the following specific steps:

[0048] a. The coiled strip steel 30 is inserted and connected on the horizontally arranged suspension beam 28 for storage, the suspension beam 28 passes through the center hole of the coiled strip steel, the axial direction of the suspension beam 28 is parallel to the movement direction of the transfer trolley 1, the coiled strip steel on the suspension beam 28 is opposite to the clamping space between the upper clamping seat 4 and the lower clamping seat 5, and the strip steel unwinding device unwinding shaft 29 is arranged on the side of the transfer trolley 1 away from the suspension beam 28, and the shaft center of the unwinding shaft 29 is coaxial with the clamping center of the upper clamping seat 4 and the lower clamping seat 5.

[0049] b. The transfer trolley 1 is driven to move to the side of the suspension beam 28, so that the coiled strip steel 30 suspended on the outermost end of the suspension beam 28 is just located between the upper clamping seat 4 and the lower clamping seat 5.

[0050] c. The two lifting drivers 6 are controlled to drive the lower clamping seat 5 to rise, the lower clamping seat 5 drives the upper clamping seat 4 to synchronously descend through chain transmission, and the coiled strip steel is clamped.

[0051] d. The transfer trolley 1 is driven to move reversely, drives the clamped coiled strip steel 30 to move to the strip steel unwinding device, and finally sleeves the coiled strip steel 30 on the unwinding shaft 29 of the strip steel unwinding device.

[0052] e. The two lifting drivers 6 are controlled to drive the lower clamping seat 5 to descend, and the upper clamping seat 4 is synchronously raised to release the coiled strip steel 30, the transfer trolley 1 is driven to move away from the strip steel unwinding device, and the transfer of the coiled strip steel is completed.

[0053] The suspension beam 28 refers to a support body which is horizontally arranged, one end of which is suspended, and the other end of which is connected with the ground or other fixed objects, the center hole of the coiled strip steel 30 is larger than the outer diameter of the suspension beam 28, when the coiled strip steel 30 is suspended on the suspension beam 28, the coiled strip steel 30 is at a certain height from the ground, and the upper clamping seat 4 and the lower clamping seat 5 can be respectively moved to the upper and lower sides of the suspended coiled strip steel 30 when the upper clamping seat 4 and the lower clamping seat 5 are opened.

[0054] As the improvement of the above technical scheme, in the embodiment, the center axis of the coiled strip 30 suspended on the suspension beam 28 is lower than the clamping center of the upper clamping seat 4 and the lower clamping seat 5, when the upper clamping seat 4 and the lower clamping seat 5 clamp the coiled strip 30, the coiled strip 30 can be lifted by a certain distance, so that the coiled strip 30 is separated from the connection relationship with the suspension beam 28, so that the friction between the coiled strip 30 and the suspension beam 28 during conveying can be avoided.

[0055] The above embodiments only exemplarily illustrate the principles and effects of the present application and some applied embodiments, and are not used to limit the present application; it should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A coil strip transfer device comprising a transfer trolley (1), characterized in that, The transfer trolley (1) is connected with a vertical column (2) on both sides, two columns (2) are opposite to each other and the top end is connected through a cross beam (3), an upper clamping seat (4) and a lower clamping seat (5) are arranged between the two columns (2), the two ends of the upper clamping seat (4) and the lower clamping seat (5) are respectively and slidably connected with the two columns (2), a lifting drive (6) is fixedly connected outside the two columns (2), the driving end of the two lifting drives (6) is connected with the two ends of the lower clamping seat (5), the lower clamping seat (5) is driven to lift, a pair of sprockets (7) are rotatably connected with the two ends of the cross beam (3), a sprocket (7) is rotatably connected with the bottom of the transfer trolley (1) on both sides, the lower clamping seat (5) and the upper clamping seat (4) are connected with each other through a first transmission chain and a second transmission chain, the first transmission chain and the second transmission chain are arranged along the movement direction of the transfer trolley (1), the first transmission chain comprises a driving chain (8) connected with the right end of the lower clamping seat (5), a middle part passing through the sprockets (7) at the two ends of the cross beam (3) and the other end connected with the left end of the upper clamping seat (4), further comprising a passive chain (9) connected with the left end of the upper clamping seat (4) at one end, passing through the sprocket (7) at the left bottom of the transfer trolley (1) at the middle part and connected with the left end of the lower clamping seat (5) at the other end; the second transmission chain comprises a driving chain (8) connected with the left end of the lower clamping seat (5) at one end, a middle part passing through the other two sprockets (7) at the two ends of the cross beam (3) and the other end connected with the right end of the upper clamping seat (4), further comprising a passive chain (9) connected with the right end of the upper clamping seat (4) at one end, passing through the sprocket (7) at the right bottom of the transfer trolley (1) at the middle part and connected with the right end of the lower clamping seat (5) at the other end. The column (2) is a square tube structure, and a pair of rollers (14) is rotatably connected to the two ends of the upper clamping seat (4), the two pairs of rollers (14) are abutted on the facing surfaces of the two columns (2) respectively, the two rollers (14) abutted on the same column (2) are arranged in an up-down manner, a vertically extending upper long hole (15) is formed on the facing surface of each of the two columns (2), the upper long hole (15) is located at the upper portion of the column (2), the length of the upper long hole (15) corresponds to the lifting interval of the upper clamping seat (4), the upper clamping seat (4) is connected with a connecting seat (16) inserted into the column (2) through the upper long hole (15), the connecting seat (16) is used for connecting the driving chain (8) and the driven chain (9), the driving chain (8) and the driven chain (9) connected with the two ends of the upper clamping seat (4) around the sprocket (7) are arranged in the column (2); the structure that the lower clamping seat (5) is connected with the column (2) is the same as the structure that the upper clamping seat (4) is connected with the column (2), and the two ends of the lower clamping seat (5) are further connected with a pair of ear plates (17) extending to the outer sides of the corresponding columns (2), and the driving ends of the two lifting drivers (6) are connected with the ear plates (17) at the two ends of the lower clamping seat (5) respectively; a vertically extending lower long hole (18) is further formed on the facing surface of each of the two columns (2), the lower long hole (18) is located at the lower portion of the column (2), and the length of the lower long hole (18) corresponds to the lifting interval of the lower clamping seat (5).

2. The coil strip transfer device of claim 1, wherein, The left and right ends of the lower clamping seat (5) are respectively connected with a horizontally arranged positioning plate (10), a vertical adjusting screw (11) is inserted into any positioning plate (10), two nuts (12) arranged on the two sides of the positioning plate (10) are connected with any adjusting screw (11), the two nuts (12) clamp the positioning plate (10) to fix the adjusting screw (11), the positions of the two nuts (12) are adjusted to change the length of the lower end of the adjusting screw (11) extending out of the positioning plate (10), and the lower end of the adjusting screw (11) is used for connecting the corresponding driven chain (9); the two driving chains (8) above the cross beam (3) are respectively connected with chain tensioners (13).

3. The coil strip transfer device of claim 1, wherein, The two ends of the upper clamping seat (4) are respectively provided with a pair of limiting plates (19) extending to the opposite sides of the two columns (2), any pair of limiting plates (19) is opposite to the two side surfaces of the column (2), any limiting plate (19) is connected with a sliding block (20) slidingly abutting against the side surface of the column (2) on the surface of the limiting plate (19) facing the column (2), and the free ends of the two limiting plates (19) are connected with each other through a connecting plate (21); the ear plates (17) at the two ends of the lower clamping seat (5) opposite to each other are also connected with each other through a connecting plate (21), the connecting plate (21) is located at the opposite sides of the two columns (2), any pair of ear plates (17) is arranged on the two sides of the column (2), and any ear plate (17) is connected with a sliding block (20) slidingly abutting against the side surface of the column (2) on the surface of the ear plate (17) facing the column (2).

4. The coil strip transfer device of claim 1, wherein, The facing sides of the upper clamping seat (4) and the lower clamping seat (5) are respectively provided with grooves (22) for embedding the coiled strip steel, and the bottom surfaces of the grooves (22) are circular arc surfaces or a plurality of continuous flat surfaces.

5. The coil strip transfer device of claim 1, wherein, The transfer trolley (1) is in the shape of an I-beam, comprising left and right frames (101, 102) parallel to each other and a connecting frame (103) connecting the left and right frames (101, 102), two upright columns (2) are connected to the middle of the left and right frames (101, 102), respectively, and the left and right frames (101, 102) are respectively connected with struts (23) extending to the connected upright columns (2), the upper end of the struts (23) is connected with the middle of the upright columns (2), and the middle of the two upright columns (2) is respectively connected with driving seats (24) extending in opposite directions, the lifting drives (6) are respectively connected to the two driving seats (24) through the connection with the upright columns (2).

6. The coil strip transfer device of claim 5, wherein, The bottom of the left and right frames (101, 102) is respectively connected with at least two I-wheels (25), the transfer trolley (1) travels along the track (26) laid on the ground, the track (26) cooperates with the I-wheels (25), and one walking drive (27) is respectively connected to the left and right frames (101, 102), the walking drive (27) is in driving connection with the I-wheels (25) to drive the I-wheels (25) to rotate and move the transfer trolley (1).

7. The coil strip transfer device of claim 1, wherein, The lifting drive (6) is an oil cylinder or an electric push rod or a turbine screw rod lifter.

8. The method for transferring the coil strip steel based on the device for transferring the coil strip steel according to any one of claims 1 to 7, characterized in that, The specific steps include: a. The coiled strip steel is inserted into the horizontally arranged suspension beam (28) for storage, the suspension beam (28) passes through the center hole of the coiled strip steel, the axial direction of the suspension beam (28) is parallel to the movement direction of the transfer trolley (1), the coiled strip steel on the suspension beam (28) is opposite to the clamping space between the upper clamping seat (4) and the lower clamping seat (5), and the side of the transfer trolley (1) away from the suspension beam (28) is provided with a pay-off shaft (29) of a strip steel pay-off device, and the axis of the pay-off shaft (29) is coaxial with the clamping center of the upper clamping seat (4) and the lower clamping seat (5); b. The transfer trolley (1) is driven to move to the side of the suspension beam (28), so that the coiled strip steel hung on the outermost end of the suspension beam (28) is just located between the upper clamping seat (4) and the lower clamping seat (5); c. The two lifting drives (6) are controlled to drive the lower clamping seat (5) to rise, and the lower clamping seat (5) drives the upper clamping seat (4) to synchronously descend through chain transmission, so as to clamp the coiled strip steel; d. The transfer trolley (1) is reversely driven to move, so as to drive the clamped coiled strip steel to move to the strip steel pay-off device, and finally the coiled strip steel is sleeved on the pay-off shaft (29) of the strip steel pay-off device; e. The two lifting drives (6) are controlled to drive the lower clamping seat (5) to descend, and the upper clamping seat (4) is synchronously raised, so as to release the coiled strip steel, and the transfer trolley (1) is driven to move away from the strip steel pay-off device, thereby completing the transfer of the coiled strip steel.

9. The method of claim 8, wherein the coil of strip steel is transferred by, The central shaft of the coiled strip steel hung on the suspension beam (28) is lower than the clamping center of the upper clamping seat (4) and the lower clamping seat (5).

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