Steel coil feeding device of spiral welded pipe unit

Abstract

The utility model relates to a steel coil feeding device of a spiral pipe welding unit, and belongs to the technical field of spiral steel pipe production, the steel coil feeding device comprises a moving plate trailer, a lifting platform and a track, the moving plate trailer directionally slides on the track, the lifting platform is mounted on the moving plate trailer and synchronously slides with the moving plate trailer, and the lifting platform is mounted on the track. The lifting platform ascends and descends on the movable plate trailer in the vertical direction, and a steel coil base plate strip used for placing steel coils and limiting the steel coils is arranged on the lifting platform. The steel coil feeding device has the effect that the steel coil feeding convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of spiral steel pipe production, and in particular to a steel coil feeding device for a spiral welded pipe unit. Background Art

[0002] Spiral steel pipe refers to a steel pipe made by rolling and welding steel plates in a spiral shape. When manufacturing spiral steel pipe, the steel coil is placed on a steel coil support frame, and then the steel plate is made into a steel pipe through a spiral welding pipe unit and welded.

[0003] Since the steel coils used to produce spiral steel pipes are heavy, the relevant technology uses a forklift to lift the steel coils or a gantry crane to lift the steel coils and then moves the steel coils to a steel coil support frame (also called a steel coil uncoiler). The position of the steel coils is then manually adjusted to accurately fit the steel coils onto the support shafts on the steel coil support frame.

[0004] Regarding the above-mentioned related technologies, when a forklift is used to load the steel coil onto the steel coil support frame, the forklift driver's line of sight will be blocked by the steel coil, so a staff member is required to stand in front of the forklift to guide the forklift driver. When a gantry crane is used to load the steel coil onto the steel coil support frame, the lifting device of the gantry crane is not easy to remove from the steel coil after the steel coil is inserted into the support shaft on the steel coil support frame. The above two methods are relatively unchanged in the process of loading the steel coil, which affects production efficiency. Utility Model Content

[0005] In order to improve the convenience of steel coil feeding, the present application provides a steel coil feeding device for a spiral welded pipe unit.

[0006] The present application provides a steel coil feeding device for a spiral welded pipe unit, which adopts the following technical solution:

[0007] A steel coil feeding device for a spiral welded pipe unit includes a mobile cart, a lifting platform and a track. The mobile cart slides in a directional manner on the track. The lifting platform is installed on the mobile cart and slides synchronously with the mobile cart. The lifting platform is lifted and lowered in a vertical direction on the mobile cart. The lifting platform is provided with steel coil pads for placing steel coils and limiting the position of the steel coils.

[0008] In order to enable the lifting platform to be lifted and lowered stably and to make the device suitable for steel coil support frames of different heights, a hydraulic cylinder for driving the lifting platform to be lifted and lowered is installed on the top of the mobile cart.

[0009] In order to prevent the steel coil from rolling on the lifting platform, two steel coil pad strips are symmetrically arranged at intervals, and the steel coil is located between the two steel coil pad strips.

[0010] The steel coil pad strip is provided with a limiting arc surface which is in contact with the steel coil and limits the rolling of the steel coil.

[0011] In order to increase the friction between the steel coil and the steel coil pad strips and improve the stability of the steel coil after being placed on the lifting platform, an anti-slip rubber pad is provided on the limiting arc surface.

[0012] In order to limit the axial movement of the steel coil, a fixed plate and a limit adjustment plate for limiting the axial movement of the steel coil are provided on the lifting platform, and the steel coil is located between the fixed plate and the limit adjustment plate.

[0013] In order to be able to adjust the distance between the fixed plate and the limit adjustment plate to adapt to steel coils of different widths, the limit adjustment plate is installed on the lifting platform along the axial sliding of the steel coil, and the lifting platform is provided with fixing bolts and nuts for limiting the movement of the limit adjustment plate.

[0014] The lifting platform is provided with a hole for the fixing bolt to pass through and move and adjust, and the limit adjustment plate is provided with a bolt hole for the fixing bolt to pass through and cooperate with a nut.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] When the steel coil needs to be loaded onto the steel coil support frame, the steel coil can be moved to the lifting platform by the lifting mechanism first, and then the lifting can be easily removed from the steel coil, and then the mobile cart is driven to move in the direction of the steel coil support frame, so that the support shaft on the steel coil support frame can be accurately inserted. After the loading device loads the steel coil onto the steel coil support frame, the lifting mechanism can place another steel coil on the lifting platform as a spare, so that the mobile cart can be directly driven to move next time, making the loading of steel coils more convenient;

[0017] The hydraulic cylinder can drive the lifting platform to rise and fall stably, making the loading device suitable for steel coil support racks of different heights;

[0018] After the steel coil is placed on the lifting platform, the two steel coil pads limit the rolling of the steel coil, while the fixed plate and the limit adjustment plate limit the axial direction of the steel coil (that is, the moving direction of the mobile cart), so that the steel coil can be stably located on the lifting platform during the loading process and is not easy to roll off the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the use status of the steel coil feeding device in the embodiment of the present application.

[0020] Figure 2 It is a structural schematic diagram of the feeding device in the embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the structure on the loading platform in the embodiment of the present application.

[0022] Explanation of the reference numerals: 1. Mobile cart; 11. Hydraulic cylinder; 2. Lifting platform; 21. Steel coil pad strip; 22. Fixed plate; 23. Limit adjustment plate; 24. Limit arc surface; 25. Anti-slip rubber pad; 26. Adjustment hole; 3. Track; 4. Steel coil support frame. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 This application is described in further detail.

[0024] The present application embodiment discloses a steel coil feeding device for a spiral welded pipe unit. Figure 1 The steel coil feeding device of the spiral welded pipe unit includes a mobile cart 1, a lifting platform 2 and a track 3. A steel coil support frame 4 is installed at one end of the track 3, and the steel coil needs to be loaded onto the steel coil support frame 4. The mobile cart 1 slides directionally on the track 3, the lifting platform 2 is installed on the mobile cart 1 and moves synchronously with the mobile cart 1, and the steel coil is placed on the lifting platform 2. The mobile cart 1 moves closer to or away from the steel coil support frame 4 under the action of the track 3. For the same model of steel coil support frame 4, it is only necessary to adjust the height of the lifting platform 2 for the first time, and then use the lifting mechanism to place the steel coil on the lifting platform 2. Finally, the mobile cart 1 drives the lifting platform 2 to move so that the steel coil is accurately inserted into the steel coil support frame 4. At the same time, since there is no central axis inserted into the steel coil on the lifting platform 2, the lifting equipment of the lifting mechanism can be easily removed from the steel coil, thereby making the process of steel coil loading more convenient.

[0025] The end of the steel coil support frame 4 close to the track 3 has a cantilever shaft, and the steel coil is sleeved on the cantilever shaft. After the feeding device feeds the steel coil onto the steel coil support frame 4, the hoisting mechanism can place another steel coil on the lifting platform 2 as a spare, so that the mobile cart 1 can be directly driven to move towards the direction close to the steel coil support frame 4 next time.

[0026] Reference Figure 1 The mobile pallet truck 1 includes a vehicle board and a track 3 wheel for driving the vehicle board to move on the track 3. A hub motor (not shown in the figure) is installed on the track 3 wheel, which can directly drive the vehicle board to move.

[0027] Reference Figure 1 and Figure 2A hydraulic cylinder 11 is fixedly installed on the top of the vehicle plate, and the hydraulic cylinder 11 will drive the lifting platform 2 to move in the vertical direction, thereby adapting to the steel coil support frame 4 of different heights. In order to make the hydraulic cylinder 11 drive the lifting platform 2 to rise and fall more stably, the present embodiment preferably sets two hydraulic cylinders 11, the two hydraulic cylinders 11 are arranged at intervals, and the two hydraulic cylinders 11 move synchronously. The following takes the installation structure of a hydraulic cylinder 11 and the lifting platform 2 as an example for explanation.

[0028] The end of the telescopic rod of the hydraulic cylinder 11 passes through the lifting platform 2 and is located above the lifting platform 2. Two clamping nuts are threadedly connected to the telescopic rod of the hydraulic cylinder 11. The two clamping nuts are respectively located on the upper and lower sides of the lifting platform 2 and abut against the lifting platform 2. Therefore, when the telescopic rod of the hydraulic cylinder 11 is extended or retracted, it can drive the lifting platform 2 to rise and fall.

[0029] Reference Figure 2 and Figure 3 The lifting platform 2 is provided with a steel coil pad strip 21, a fixed plate 22 and a limit adjustment plate 23. The steel coil is placed on the steel coil pad strip 21, which limits the rolling of the steel coil, while the fixed plate 22 and the limit adjustment plate 23 are respectively arranged at both ends of the axial direction of the steel coil to limit the axial direction of the steel coil, thereby making it difficult for the steel coil to slide off the lifting platform 2 during the loading process. In addition, the limit adjustment plate 23 can be adjusted along the axial direction of the steel coil, thereby limiting the position of steel coils of different specifications and widths.

[0030] There are two steel coil pad strips 21, which are spaced and symmetrically arranged along the horizontal direction perpendicular to the movement of the mobile cart 1. The steel coil is located between the two steel coil pad strips 21 and is placed on the two steel coil pad strips 21. The side of the steel coil close to the lifting platform 2 is suspended under the support of the steel coil pad strips 21. The two steel coil pad strips 21 have the same structure, and one steel coil pad strip 21 is used as an example for explanation below.

[0031] Reference Figure 2 and Figure 3 The top of the steel coil pad strip 21 is provided with a limiting arc surface 24 that fits the steel coil, and the steel coil is not easy to roll under the action of the limiting arc surface 24. The limiting arc surface 24 is glued with an anti-skid rubber pad 25, and the steel coil has a greater friction force with the steel coil pad strip 21 through the anti-skid rubber pad 25, so it is not easy to move on the steel coil pad strip 21.

[0032] Reference Figure 2 and Figure 3, the fixed plate 22 is located on the side of the steel coil close to the steel coil support frame 4, and the fixed plate 22 is welded and fixed to the top of the lifting platform 2. The limit adjustment plate 23 is located on the side of the steel coil away from the steel coil support frame 4. The limit adjustment plate 23 includes a vertical plate and a horizontal plate. The vertical plate and the horizontal plate are integrally formed. The vertical plate and the horizontal plate are an L-shaped plate body, and the vertical plate blocks the steel coil. A bolt hole is provided on the side of the horizontal plate away from the lifting platform 2, and an adjustment hole 26 is provided on the top of the lifting platform 2 that penetrates the lifting platform 2. The adjustment hole 26 is a waist-shaped hole. The adjustment hole 26 extends along the axial direction of the steel coil, and the adjustment hole 26 is connected to the bolt hole. The bolt is inserted into the adjustment hole 26 from the bottom of the lifting platform 2 and passes through the bolt hole. The horizontal plate is limited and fixed by a nut. When the horizontal plate needs to be moved, just loosen the nut on the bolt.

[0033] The implementation principle of the steel coil feeding device of a spiral welded pipe unit in an embodiment of the present application is as follows: when the steel coil needs to be loaded onto the steel coil support frame 4, the steel coil can be first moved to the lifting platform 2 through the lifting mechanism. Since there is no shaft inserted into the steel coil on the lifting platform 2, the lifting mechanism can be easily removed from the steel coil after the steel coil is placed on the lifting platform 2.

[0034] After the steel coil is placed on the lifting platform 2, it will be placed on two steel coil pad strips 21. The two steel coil pad strips 21 limit the rolling of the steel coil, while the fixed plate 22 and the limit adjustment plate 23 limit the axial direction of the steel coil (that is, the moving direction of the mobile cart 1), thereby improving the stability of the steel coil after placement. After that, the mobile cart 1 will automatically drive the steel coil to move in the direction close to the steel coil support frame 4 and accurately put the steel coil into the cantilever shaft on the steel coil support frame 4; finally, the hydraulic cylinder 11 drives the lifting platform 2 to descend so that the fixed plate 22 does not interfere with the steel coil, and then the mobile cart 1 returns to its original position. After that, the hydraulic cylinder 11 automatically rises and returns to its initial position under the action of the program. The installation mechanism can place another steel coil on the lifting platform 2 as a backup, so that the mobile cart 1 can be directly driven to move next time.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel coil feeding device for a spiral welded pipe unit, characterized in that: The invention comprises a mobile cart (1), a lifting platform (2) and a track (3); the mobile cart (1) slides in a directional manner on the track (3); the lifting platform (2) is installed on the mobile cart (1) and slides synchronously with the mobile cart (1); the lifting platform (2) is lifted and lowered in a vertical direction on the mobile cart (1); and a steel coil pad strip (21) is provided on the lifting platform (2) for placing steel coils and limiting the position of the steel coils.

2. The steel coil feeding device of the spiral welded pipe unit according to claim 1 is characterized in that: A hydraulic cylinder (11) for driving the lifting platform (2) to rise and fall is installed on the top of the mobile cart (1).

3. The steel coil feeding device of the spiral welded pipe unit according to claim 2 is characterized in that: Two of the steel coil pad strips (21) are symmetrically arranged at intervals, and the steel coil is located between the two steel coil pad strips (21).

4. The steel coil feeding device of the spiral welded pipe unit according to claim 3 is characterized by: The steel coil pad strip (21) is provided with a limiting arc surface (24) which is in contact with the steel coil and limits the rolling of the steel coil.

5. The steel coil feeding device of the spiral welded pipe unit according to claim 4 is characterized in that: An anti-slip rubber pad (25) is provided on the limiting curved surface (24).

6. The steel coil feeding device of the spiral welded pipe unit according to claim 1, characterized in that: The lifting platform (2) is provided with a fixed plate (22) and a limit adjustment plate (23) for limiting the axial movement of the steel coil, and the steel coil is located between the fixed plate (22) and the limit adjustment plate (23).

7. The steel coil feeding device of the spiral welded pipe unit according to claim 6, characterized in that: The limit adjustment plate (23) is installed on the lifting platform (2) in a sliding manner along the axial direction of the steel coil, and the lifting platform (2) is provided with fixing bolts and nuts for limiting the movement of the limit adjustment plate (23).

8. The steel coil feeding device of the spiral welded pipe unit according to claim 7, characterized in that: The lifting platform (2) is provided with a movable adjustment hole (26) for a fixing bolt to pass through, and the limit adjustment plate (23) is provided with a bolt hole for a fixing bolt to pass through and to cooperate with a nut.

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