A low head allowance steel plate pre-bending device

Abstract

The utility model relates to low pressure head allowance's steel sheet pre -bending device, including two base mould and distance adjusting assembly, two base mould upper end edge is provided with pivot mould cover and pivot mould, and the upper surface edge of pivot mould cover is provided with rotation hole position, be provided with the extension part of extension of pivot mould, the upper surface of extension part is provided with the bearing plane of bearing steel sheet, and the side surface of extension part is connected with the elastic reset piece that is pivot mould rotation rear reset, when processing, according to the size of steel sheet to be processed, adjust two base mould spacing through distance adjusting assembly, after adjusting, place steel sheet on two bearing planes, by the external press hold steel sheet in the middle part of two bearing planes, make steel sheet bending, two elastic reset pieces are compressed at this moment, and two pivot moulds will be deflected under stress and carry out shape self -adaptation, adopt this kind of mould to reduce the size of pressure head allowance, can effectively provide production efficiency and reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of heavy steel pipe prefabrication technology, and more specifically, to a steel plate pre-bending device with low pressure head margin. Background Technology

[0002] During the pipe manufacturing process of jacket supports, when the diameter-to-thickness ratio of certain steel pipes that need to be rolled from steel plates is less than a certain value (related to the capacity of the plate rolling machine), it becomes very difficult for the plate rolling machine to roll the ends of the steel plates. During pipe rolling operations, manufacturers often pre-bend both ends of the steel plates to reduce the rolling difficulty of the plate rolling machine, extend the service life of the plate rolling machine, improve production efficiency, and reduce production costs.

[0003] However, traditional pre-bending methods have some limitations. First, they require a relatively large allowance for the pressure head, ranging from 1T to 4T (T being the thickness of the steel plate); second, indentations are easily formed on the back of the steel plate; and third, the pre-bending effect is not good, requiring repeated operations.

[0004] To address the above issues, this invention proposes a steel plate pre-bending device with low pressure head allowance, aiming to improve the pipe manufacturing efficiency of jacket structures in the marine engineering industry and reduce the overall pipe manufacturing cost. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a steel plate pre-bending device with low pressure head margin, which addresses the above-mentioned defects of the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A steel plate pre-bending device with low pressure head allowance is constructed, comprising two opposing base molds and an adjusting assembly for adjusting the distance between the two base molds; a rotating shaft sleeve and a rotating shaft mold are provided on the upper edge of the opposite side surface of the two base molds, and the upper surface edge of the rotating shaft sleeve is provided with a rotating hole for the rotating shaft mold to rotate; the rotating shaft mold is provided with an extension extending out of the rotating hole, the upper surface of the extension is provided with a bearing plane for bearing the steel plate, and the side surface of the extension is connected to an elastic reset member for resetting the rotating shaft mold after rotation.

[0008] The steel plate pre-bending device with low pressure head allowance of the present invention includes an elastic reset member comprising a longitudinal elastic member, the upper end of which is hinged to the side surface of the protrusion through a first connector, and the lower end of which is hinged to the base mold through a second connector.

[0009] The steel plate pre-bending device with low pressure head allowance of this utility model includes a first connecting member comprising a first horizontal lifting lug plate, a first vertical lifting lug plate, and a first bolt; the first horizontal lifting lug plate and the first vertical lifting lug plate are hinged together by the first bolt; the first horizontal lifting lug plate is connected to the side surface of the protruding part, and the first vertical lifting lug plate is connected to the elastic member.

[0010] The steel plate pre-bending device with low pressure head allowance of the present invention includes an elastic element comprising a spring and a telescopic sleeve sleeved outside the spring; the two ends of the spring are respectively connected to the first connecting member and the second connecting member.

[0011] The steel plate pre-bending device with low pressure head allowance of this utility model includes a telescopic sleeve comprising a first square tube and a second square tube that are sleeved together. The first square tube is connected to the first connecting member through a straight plate. A round steel is fixed on the straight plate, and a spring is fixed on the round steel. The second square tube is connected to the second connecting member, and the spring abuts against the second connecting member.

[0012] The steel plate pre-bending device with low pressure head allowance of the present invention includes a limiting frame provided on the side surface of the base mold, and a slot provided on the limiting frame for the first square tube to pass through; a limiting plate provided on the outer surface of the first square tube, and an adjusting screw threadedly connected to the limiting frame to abut against the limiting plate.

[0013] The steel plate pre-bending device with low pressure head allowance of this utility model includes a second connecting member comprising a second horizontal lifting lug plate, a second vertical lifting lug plate, and a second bolt; the second horizontal lifting lug plate and the second vertical lifting lug plate are hinged together by the second bolt; the second horizontal lifting lug plate is connected to the side surface of the base mold, and the second vertical lifting lug plate is connected to the elastic member.

[0014] In the low-pressure head allowance steel plate pre-bending device of this utility model, the height of the bearing plane is not lower than the height of the upper surface of the base mold.

[0015] The steel plate pre-bending device with low pressure head allowance of the present invention has an installation groove provided on the upper surface edge of the base mold, and the rotating shaft mold sleeve can be detachably installed in the installation groove.

[0016] The steel plate pre-bending device with low pressure head allowance of the present invention includes an installation groove that is stepped, with a first screw hole on the vertical surface and a second screw hole on the horizontal surface; the inner wall of the rotating hole is provided with a first through hole corresponding to the first screw hole and a second through hole corresponding to the second screw hole.

[0017] The beneficial effects of this utility model are as follows: During processing, the distance between the two base molds is adjusted according to the size of the steel plate to be processed by the adjusting component. After adjustment, the steel plate is placed on the two bearing planes, and the steel plate is pressed by an external press in the middle of the two bearing planes, so that the steel plate is bent. At this time, the two elastic reset parts are compressed, and the two rotating shaft molds are deflected by force to adapt their shape. This mold structure is simple, reduces the size of the pressure head allowance, saves materials, and can achieve pre-bending of the steel plate with relatively small force, reducing manual operation time, effectively improving production efficiency and reducing production costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the steel plate pre-bending device with low pressure head allowance according to a preferred embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the basic mold structure of the steel plate pre-bending device with low pressure head allowance according to a preferred embodiment of the present invention;

[0021] Figure 3 This is an exploded view of the basic mold structure of the steel plate pre-bending device with low pressure head allowance according to a preferred embodiment of this utility model.

[0022] Figure 4 This is a schematic diagram of the spring arrangement of the steel plate pre-bending device with low pressure head margin according to a preferred embodiment of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] The preferred embodiment of this utility model is a steel plate pre-bending device with low pressure head allowance, such as... Figure 1 As shown, see also Figures 2-4It includes two opposing base molds 1 and a spacing adjustment assembly for adjusting the distance between the two base molds 1; a rotating shaft mold sleeve 3 and a rotating shaft mold 4 are provided on the upper edge of the opposite side surface of the two base molds 1, and a rotating hole 30 for rotating the rotating shaft mold is provided on the upper surface edge of the rotating shaft mold sleeve 3; a protrusion 40 extending out of the rotating hole 30 is provided on the rotating shaft mold 4, and a bearing plane 41 for bearing steel plate is provided on the upper surface of the protrusion 40; an elastic reset member 5 for resetting the rotating shaft mold after rotation is connected to the side surface of the protrusion 40.

[0025] During processing, the distance between the two base molds 1 is adjusted according to the size of the steel plate 6 to be processed by the distance adjustment component. After adjustment, the steel plate 6 is placed on the two bearing planes 41, and the steel plate 6 is pressed by an external press in the middle of the two bearing planes 41, so that the steel plate is bent. At this time, the two elastic reset parts 5 will be compressed, and the two rotating shaft molds 4 will be deflected by force to adapt their shape. This mold structure is simple, reliable, reduces the size of the pressure head, saves materials, and can achieve pre-bending of the steel plate with relatively small force, reducing manual operation time, effectively improving production efficiency and reducing production costs.

[0026] It should be noted that the adjusting component can be set up by the matching of adjusting screw 20 and adjusting screw hole 21, or it can use the existing adjusting structure, and there is no limitation on this; if the width of the plate to be processed is wide, multiple sets of base molds 1 can be placed side by side for processing, which provides good processing flexibility;

[0027] Preferably, the elastic reset member 5 includes a longitudinal elastic member 50, the upper end of the elastic member 50 is hinged to the side surface of the protrusion through the first connector 51, and the lower end of the elastic member 50 is hinged to the base mold through the second connector 52; the structure is simple, can adapt well to deflection, and ensure the reliability of rotational rebound.

[0028] The elastic element 50 can adopt the following structural form or other existing elastic structures; the first connector 51 and the second connector 52 can adopt the following structural form or other existing hinged connection methods.

[0029] Preferably, the first connecting member 51 includes a first horizontal lifting lug 510, a first vertical lifting lug 511, and a first bolt 512; the first horizontal lifting lug 510 and the first vertical lifting lug 511 are hinged together by the first bolt 512; the first horizontal lifting lug 510 is connected to the side surface of the protrusion, and the first vertical lifting lug 511 is connected to the elastic member; the connection structure is simple, easy to assemble and disassemble, and low in cost.

[0030] Preferably, the elastic element 50 includes a spring 500 and a telescopic sleeve sleeved outside the spring; the two ends of the spring are respectively connected to a first connecting member and a second connecting member; the telescopic sleeve includes a first square tube 501 and a second square tube 502 that are sleeved together, the first square tube is connected to the first connecting member through a straight plate 503, a round steel 504 is fixed on the straight plate 503, and the spring 500 is fixed on the round steel 504; the second square tube 502 is connected to the second connecting member, and the spring 500 abuts against the second connecting member; the use of the first square tube 501 and the second square tube 502 ensures the consistency of the telescopic direction, and also limits the direction of the spring deformation, thereby ensuring the stability of the elastic force output; the overall structure is extremely simple and low in cost.

[0031] Preferably, a limiting frame 10 is provided on the side surface of the base mold 1, and a slot 100 is provided on the limiting frame 10 for the first square tube to pass through; a limiting plate 505 is provided on the outer surface of the first square tube 501, and an adjusting screw 101 that abuts against the limiting plate is threaded onto the limiting frame 10; the purpose of this structure is to guide the first square tube 501, and the adjusting screw 101 can adjust the position of the initial limiting plate 505 and also adjust the elastic stroke.

[0032] Preferably, the second connecting member 52 includes a second horizontal lifting lug 520, a second vertical lifting lug 521, and a second bolt 522; the second horizontal lifting lug 520 and the second vertical lifting lug 521 are hinged together by the second bolt 522; the second horizontal lifting lug 520 is connected to the side surface of the base mold 1, and the second vertical lifting lug 521 is connected to the elastic element; the connection structure is simple, easy to assemble and disassemble, and low in cost.

[0033] Preferably, the height of the bearing plane 41 is not lower than the height of the upper surface of the base mold 1.

[0034] Preferably, the upper surface edge of the base mold 1 is provided with a mounting groove 11, and the rotating shaft mold sleeve 2 is detachably installed in the mounting groove 11; the mounting groove 11 is stepped, and a first screw hole 110 is provided on the vertical surface and a second screw hole 111 is provided on the horizontal surface; the inner wall of the rotating hole 30 is provided with a first through hole 300 corresponding to the first screw hole 110 and a second through hole 301 corresponding to the second screw hole 111; this connection method has good connection reliability, is easy to disassemble and assemble, has good overall integrity after assembly, and has low processing cost.

[0035] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A steel plate pre-bending device with low pressure head allowance, characterized in that, It includes two opposing base molds and a spacing adjustment assembly for adjusting the distance between the two base molds; a rotating shaft sleeve and a rotating shaft mold are provided on the upper edge of the opposite side surface of the two base molds, and the upper surface edge of the rotating shaft sleeve is provided with a rotating hole for the rotating shaft mold to rotate; the rotating shaft mold is provided with an extension that extends out of the rotating hole, the upper surface of the extension is provided with a bearing plane of a bearing steel plate, and the side surface of the extension is connected to an elastic reset member for the rotating shaft mold to reset after rotation.

2. The steel plate pre-bending device with low pressure head allowance according to claim 1, characterized in that, The elastic reset member includes a longitudinal elastic member, the upper end of which is hinged to the side surface of the protrusion via a first connector, and the lower end of which is hinged to the base mold via a second connector.

3. The steel plate pre-bending device with low pressure head allowance according to claim 2, characterized in that, The first connecting member includes a first horizontal lifting lug plate, a first vertical lifting lug plate, and a first bolt; the first horizontal lifting lug plate and the first vertical lifting lug plate are hinged together by the first bolt; the first horizontal lifting lug plate is connected to the side surface of the protrusion, and the first vertical lifting lug plate is connected to the elastic member.

4. The steel plate pre-bending device with low pressure head allowance according to claim 2, characterized in that, The elastic element includes a spring and a telescopic sleeve fitted over the spring; the two ends of the spring are respectively connected to the first connecting member and the second connecting member.

5. The steel plate pre-bending device with low pressure head allowance according to claim 4, characterized in that, The telescopic sleeve includes a first square tube and a second square tube that are fitted together. The first square tube is connected to the first connecting member through a straight plate. A round steel bar is fixed on the straight plate, and the spring is fixed on the round steel bar. The second square tube is connected to the second connecting member, and the spring abuts against the second connecting member.

6. The steel plate pre-bending device with low pressure head allowance according to claim 5, characterized in that, The side surface of the base mold is provided with a limiting frame, and the limiting frame is provided with a slot for the first square tube to pass through; the outer surface of the first square tube is provided with a limiting plate, and the limiting frame is threaded with an adjusting screw that abuts against the limiting plate.

7. The steel plate pre-bending device with low pressure head allowance according to claim 2, characterized in that, The second connecting member includes a second horizontal lifting lug plate, a second vertical lifting lug plate, and a second bolt; the second horizontal lifting lug plate and the second vertical lifting lug plate are hinged together by the second bolt; the second horizontal lifting lug plate is connected to the side surface of the base mold, and the second vertical lifting lug plate is connected to the elastic member.

8. The steel plate pre-bending device with low pressure head allowance according to any one of claims 1-7, characterized in that, The height of the bearing plane is not lower than the height of the upper surface of the base mold.

9. The steel plate pre-bending device with low pressure head allowance according to any one of claims 1-7, characterized in that, The upper surface edge of the base mold is provided with a mounting groove, and the rotating shaft mold sleeve can be detachably installed in the mounting groove.

10. The steel plate pre-bending device with low pressure head allowance according to claim 9, characterized in that, The mounting groove is stepped, with a first screw hole on the vertical surface and a second screw hole on the horizontal surface; the inner wall of the rotating hole is provided with a first through hole corresponding to the first screw hole and a second through hole corresponding to the second screw hole.

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