Single-folded edge column plate shearing machine

Abstract

The utility model relates to a single edge folding column plate shearing machine belongs to shipbuilding and sheet metal processing technical field. The shearing machine includes drive motor, reduction gearbox, machine box, adjusting screw rod, feed inlet, discharge gate, feed guide wheel, discharge guide wheel, walking support, walking wheel group, upper hob and lower hob. Through the rolling shearing mode of upper and lower hobs, realize the high quality cutting of high strength sheet (such as invar steel, stainless steel), the smoothness of cutout is without burr, without wave deformation, does not affect the subsequent automatic welding quality. The equipment has automatic walking function, simple operation, high safety, is applicable to LNG ship cargo hold membrane containment system and other field construction environment. The utility model effectively solves the problems, such as low efficiency, poor quality, big security risk of traditional manual repair cutting, significantly improves the shipbuilding automation level and construction quality.

Description

Technical Field

[0001] This utility model relates to the technical field of metal sheet processing equipment, and in particular to a single-edge folding plate shearing machine. It is a single-edge folding plate shearing machine used for on-site shearing of high-strength thin plates such as Invar steel in LNG ship cargo hold membrane containment systems, especially for single-edge folding plate shearing of Invar steel for LNG ships, enabling rapid and high-quality cutting of Invar steel on board. Based on the convenient and efficient characteristics of this single-edge folding plate shearing machine, it is basically applicable to the on-site cutting of all thin plates. Background Technology

[0002] LNG carriers are one of the three crown jewels of the shipbuilding industry, and their construction is extremely challenging. The cargo tanks used to carry liquefied natural gas are made of Invar steel, which has stringent welding requirements. The quality of the Invar steel butt joints is critical, and the processing is very difficult. The single-folded edge plates of Invar steel require on-site trimming of allowances, which is extremely difficult and labor-intensive. To improve the welding quality of Invar steel butt joints, it is essential to first improve the cutting quality of Invar steel. This necessitates continuous research into new tooling and equipment, which is of great significance for improving shipbuilding skills.

[0003] LNG (liquefied natural gas) vessels are an important component of the high-end shipbuilding industry, and their cargo hold membrane containment systems are typically made of Invar steel. Invar steel has an extremely low coefficient of thermal expansion, making it suitable for cryogenic environments; however, it is difficult to process, especially in on-site trimming operations where the cut quality requirements are extremely high. Traditional Invar steel plate trimming relies heavily on manual operation, which suffers from low efficiency, poor cut quality, high labor intensity, and numerous safety hazards. It also easily leads to defects such as plate deformation, burrs, and scratches, affecting the quality of subsequent automated welding and even causing leakage risks.

[0004] Therefore, there is an urgent need for equipment that can achieve high-quality, automated on-site shearing of high-strength thin plates to improve the efficiency and safety of LNG ship construction. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a single-edge folding plate shearing machine to solve the problems of low efficiency, poor quality, and insufficient safety in on-site shearing of thin plates such as Invar steel. This equipment features automated movement, high-quality shearing, easy operation, and high safety and reliability, making it suitable for various construction environments.

[0006] The above-mentioned utility model objective is achieved through the following technical solution:

[0007] A single-edge folding plate shearing machine includes a machine housing, a drive mechanism, a traveling mechanism, a shearing mechanism, and a material guiding mechanism;

[0008] The drive mechanism is fixed inside the chassis, and the drive mechanism includes a drive motor and a reduction gearbox connected to the output shaft of the drive motor.

[0009] The shearing mechanism includes an upper and a lower roller cutter arranged in parallel and opposite directions. The lower roller cutter is connected to the output shaft of the gearbox and is driven to rotate by a drive motor via the gearbox.

[0010] The walking mechanism includes walking brackets symmetrically arranged on both sides of the chassis and a set of unpowered walking wheels installed on one side of the walking brackets;

[0011] The material guiding mechanism includes a material inlet and a material guide wheel located on the material feeding side of the machine body, and a material outlet and a material discharge guide wheel located on the material discharging side of the machine body.

[0012] The chassis is also equipped with an adjusting screw for adjusting the shearing width.

[0013] As a further technical solution of this utility model: the upper roller is mounted on the machine housing in an adjustable manner via a bearing seat, and the gap between the upper roller and the lower roller can be adjusted to accommodate plates of different thicknesses.

[0014] As a further technical solution of this utility model: one end of the adjusting screw is hinged to the walking bracket, and the other end is provided with a handwheel. By rotating the adjusting screw, the position of the walking mechanism relative to the shearing mechanism is changed, thereby realizing the precise adjustment of the shearing width.

[0015] As a further technical solution of this utility model: the feeding guide wheel and the discharging guide wheel are both driven wheels, and their wheel surfaces are provided with guide grooves that match the thickness of the plate, which are used to limit the displacement of the plate in the vertical direction.

[0016] As a further technical solution of this utility model: a semi-concealed protective cover is provided on the outer side of the upper hob, the lower hob is located below the upper hob, the protective cover is fixed on the machine housing, and the upper hob only exposes the meshing part of the tool for shearing.

[0017] As a further technical solution of this utility model: the chassis is made of aluminum alloy or engineering plastic.

[0018] As a further technical solution of this utility model: the cutting teeth of the upper and lower rollers are precision ground and hardened, and their cutting edge shapes are configured to generate downward and forward pressing forces on the plate during shearing, so as to achieve burr-free cutting and drive the equipment forward.

[0019] As a further technical solution of this utility model: the shearing machine is specifically used for shearing Invar steel plates or stainless steel plates with a thickness of 0.5mm to 1.5mm.

[0020] As a further technical solution of this utility model: the walking wheel set is a rubber wheel or a polyurethane wheel.

[0021] As a further technical solution of this utility model: the reduction gearbox is a planetary gear reducer or a worm gear reducer.

[0022] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0023] 1. This utility model discloses a single-edge plate shearing machine, belonging to the field of shipbuilding and metal sheet processing technology. The shearing machine includes a drive motor, a reduction gearbox, a machine housing, an adjusting screw, a feed inlet, a discharge outlet, feed guide wheels, discharge guide wheels, a traveling support, a traveling wheel set, an upper roller cutter, and a lower roller cutter. Through the rolling shearing method of the upper and lower roller cutters, high-quality cutting of high-strength thin plates (such as Invar steel and stainless steel) is achieved, resulting in smooth, burr-free, and wave-free cuts that do not affect the quality of subsequent automatic welding. The equipment has an automatic walking function, is easy to operate, and has high safety, making it suitable for on-site construction environments such as LNG ship cargo hold membrane enclosure systems. This utility model effectively solves the problems of low efficiency, poor quality, and significant safety hazards associated with traditional manual cutting, significantly improving the level of shipbuilding automation and construction quality.

[0024] 2. High degree of automation: The single-edge shearing machine is used to shear Invar steel plates. One person can operate the machine, which reduces labor intensity and improves production efficiency.

[0025] 3. Improve the shearing quality of Invar steel plates: The upper and lower roller cutter design allows for the shearing of high-strength thin plates, resulting in smooth cuts without burrs or small wave deformations. It does not cause scratches or damage to uncut plates, and the cut does not affect the quality of automatic welding, thus improving the welding quality of Invar steel butt joints.

[0026] 4. Improve shipbuilding technology: Improved cutting quality of Invar steel for ships leads to improved welding quality of Invar steel butt joints, ensuring the strength of LNG carrier storage tanks, avoiding leakage of liquid cargo tanks, and even reducing the probability of accidents such as explosions, thereby improving shipbuilding capabilities.

[0027] 5. Provides high torque: The drive motor provides power to the equipment, which is reduced and increased by the gearbox. The torque is transmitted to the upper and lower rollers to generate a large shearing force, ensuring that the shearing machine can complete the shearing of high-strength thin plates.

[0028] 6. High adaptability: The single-folding plate shearing machine is compact and convenient, and can adapt to various construction environments. It can shear high-strength thin plates and has strong versatility.

[0029] 7. Safe and reliable: Advanced safety protection measures are adopted to ensure the safety and reliability of the entire installation process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0031] Figure 2 This is a schematic diagram of the structure of the present invention when shearing a thin plate.

[0032] Reference numerals in the attached drawings: 1. Drive motor; 2. Gearbox; 3. Machine housing; 4. Adjusting screw; 5. Feed inlet; 6. Feed guide wheel; 7. Traveling support; 8. Traveling wheel set; 9. Upper cutter; 10. Discharge guide wheel; 11. Discharge port; 12. Lower cutter; 13. Invar steel plate. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] Example 1:

[0037] Reference Figure 1 and Figure 2This utility model discloses a single-edge folding plate shearing machine, comprising a machine housing 3, a drive mechanism, a traveling mechanism, a shearing mechanism, and a material guiding mechanism; the drive mechanism is fixed inside the machine housing 3, and includes a drive motor 1 and a reduction gearbox 2 connected to the output shaft of the drive motor 1; the shearing mechanism includes an upper roller cutter 9 and a lower roller cutter 12 arranged parallel and opposite to each other, the lower roller cutter 12 being connected to the output shaft of the reduction gearbox 2, and the drive motor 1 driving the lower roller cutter 12 to rotate via the reduction gearbox 2; the traveling mechanism includes traveling brackets 7 symmetrically arranged on both sides of the machine housing 3 and a set of unpowered traveling wheels 8 installed on one side of the traveling brackets 7; the material guiding mechanism includes a feed inlet 5 and a feed guide wheel 6 arranged on the feeding side of the machine housing 3, and a discharge inlet 11 and a discharge guide wheel 10 arranged on the discharge side of the machine housing 3; the machine housing 3 is also provided with an adjusting screw 4 for adjusting the shearing width.

[0038] During operation, the sheet metal to be cut is fed into the feed inlet 5 and guided by the feed guide wheel 6 to the shearing area between the upper roller cutter 9 and the lower roller cutter 12. The upper roller cutter 9 and the lower roller cutter 12 engage and roll to complete the shearing. Relying on the friction during the shearing process, the entire shearing machine automatically moves along the sheet metal via the walking wheel set 8. The sheared sheet metal is then guided by the discharge guide wheel 10 and discharged from the discharge outlet 11. This utility model is not only applicable to the on-site trimming of Invar steel plates 13 for LNG ships, but can also be widely applied to other industrial fields requiring the shearing of high-strength thin plates.

[0039] This compact and convenient shearing machine can adapt to various construction environments and shear high-strength thin plates. It enables on-site trimming of Invar steel single-edge plates, achieving a high degree of automation in Invar steel on-site trimming, which is of great significance for improving shipbuilding skills. The single-edge plate shearing machine can shear high-strength thin plates (such as Invar steel 13 and stainless steel plates), and also performs exceptionally well in shearing low-hardness thin plates. It achieves high-strength thin plate shearing with smooth cuts free of burrs and small wave deformations, without causing scratches or damage to uncut sections of the plate. The cut does not affect the quality of automatic welding, improving the welding quality of Invar steel butt joints and reducing the risk of welding quality issues.

[0040] This shearing machine improves production efficiency. The invention of the single-folding-edge plate shearing machine aims to achieve high-quality, high-efficiency shearing of high-strength thin plates through automation technology, thereby significantly improving production efficiency. It also ensures operational safety with features such as frequency conversion speed control; emergency stops via both local and remote control; and semi-concealed upper and lower roller cutters 12 that effectively prevent injury to operators. The machine is also compact, easy to transport, and simple to operate. These safety designs effectively prevent operator errors from causing injury, ensuring safety during operation. Furthermore, it promotes industrial automation upgrades. The research and application of the single-folding-edge plate shearing machine improves the level of automation in on-site construction, contributing to the upgrading and development of industrial automation. This automated production method will lead the manufacturing industry towards a more efficient, environmentally friendly, and sustainable direction.

[0041] The upper roller cutter 9 is adjustablely mounted on the housing 3 via a bearing seat. The gap between the upper roller cutter 9 and the lower roller cutter 12 is adjusted to accommodate plates of different thicknesses. One end of the adjusting screw 4 is hinged to the traveling bracket 7, and the other end is equipped with a handwheel. Rotating the adjusting screw 4 changes the position of the traveling mechanism relative to the shearing mechanism, thereby achieving precise adjustment of the shearing width. The feed guide wheel 6 and the discharge guide wheel 10 are both driven wheels, and their wheel surfaces are provided with guide grooves that match the thickness of the plate to limit the vertical displacement of the plate.

[0042] The drive motor 1 is a variable frequency motor, connected to a variable frequency controller, used to steplessly adjust the speed of the upper and lower rollers 12, thereby controlling the traveling speed and shearing efficiency of the shearing machine. The machine housing 3 is equipped with a local emergency stop button and is wirelessly connected to a remote emergency stop controller, realizing dual redundancy safety emergency stop control both locally and remotely.

[0043] The upper hob 9 has a semi-concealed protective cover on its outer side, and the lower hob 12 is located below the upper hob 9. The protective cover is fixed to the housing 3, and only the meshing part of the upper hob 9 is exposed for shearing. The housing 3 is made of aluminum alloy or engineering plastic, and the overall structure is designed for lightweight use.

[0044] The upper roller cutter 9 and the lower roller cutter 12 have precision-ground and hardened cutting teeth, and their cutting edge shapes are configured to generate downward and forward pressing forces on the sheet metal during shearing, achieving burr-free cutting and driving the machine forward. The shearing machine is specifically designed for shearing Invar steel plates 13 or stainless steel plates with a thickness of 0.5mm to 1.5mm.

[0045] The travel wheel set 8 is made of rubber or polyurethane, with a high coefficient of friction to ensure adhesion to the plate surface and prevent slippage. The gearbox 2 is a planetary gear reducer or a worm gear reducer, used to convert the high-speed, low-torque output of the drive motor 1 into a low-speed, high-torque output to provide enormous shearing force.

[0046] This invention employs single-edge folding plate shearing technology: to achieve high-quality installation of LNG ship cargo hold membrane enclosure systems and improve the safety of these systems, a single-edge folding plate shearing machine is designed to achieve rapid shearing of high-strength thin plates.

[0047] This invention employs high-quality shearing technology to achieve high-strength thin plate shearing. Specifically designed for 1mm thick Invar steel cargo hold plates in LNG ships, the shearing produces smooth cuts without burrs or small wave deformations, and avoids scratches or damage to uncut sections of the plate. The cut does not affect the quality of automatic welding. This single-edge shearing machine can shear high-strength thin plates (such as Invar steel 13 and stainless steel plates) while also demonstrating excellent shearing performance on low-hardness thin plates.

[0048] This invention adopts automatic walking shearing technology: the equipment operates in a self-propelled mode, the plates do not need to be fixed, the shearing machine is installed, the shearing size is adjusted, and the equipment is started and shears plates by itself, resulting in high processing efficiency.

[0049] This utility model adopts safety control technology: frequency conversion speed control for single-edge shearing machine; emergency stop is possible both locally and remotely; semi-concealed upper and lower roller cutters 12 can effectively prevent injury to operators; the equipment is compact, easy to transport, and simple to operate.

[0050] This utility model employs a shearing design with upper and lower roller cutters (12): the shearing machine uses an upper and lower roller cutter (12) design to achieve high-strength thin plate shearing. High-strength upper and lower roller cutters (12) are manufactured, and the Invar steel plate (13) is cut by rolling with the upper and lower roller cutters (12). The processed cut is smooth without burrs or small wave deformation, and does not cause scratches or damage to uncut areas of the plate. The cut does not affect the welding quality of automatic welding.

[0051] This utility model adopts an automatic walking shearing design: the shearing machine comes with two rows of walking wheel sets 8, which are not powered and can only move automatically. The shearing machine is installed on the Invar steel plate 13 to be sheared, and the shearing size is adjusted by adjusting the lead screw 4. The shearing machine is equipped with a feed port 5 and a discharge port 11 on the side of the scrap material. The feed port 5 and the discharge port 11 are equipped with feed and discharge guide wheels 10. The upper and lower roller cutters 12 roll and shear the steel plate while driving the shearing machine forward.

[0052] This invention features a portable design: traditional thin plate shearing equipment is bulky and heavy, making it unsuitable for on-site construction in complex environments. This new shearing machine is compact and convenient. The power motor, through a reducer, increases torque and transmits it to the upper and lower rollers 12 to shear the Invar steel plate 13, adapting to various construction environments.

[0053] This invention emphasizes product security and privacy protection: the production design of the single-edge folding plate shearing machine involves significant human and material resources, and the device itself involves the company's trade secrets and customer privacy. Therefore, when using the single-edge folding plate shearing machine, companies should strengthen the security management and privacy protection of the equipment, and adopt effective access control mechanisms to ensure that the device design is not illegally obtained or misused.

[0054] The implementation principle of this utility model is as follows: This utility model discloses a single-edge folding plate shearing machine, belonging to the field of shipbuilding and metal sheet processing technology. The shearing machine includes a drive motor 1, a reduction gearbox 2, a machine housing 3, an adjusting screw 4, a feed inlet 5, a discharge outlet 11, a feed guide wheel 6, a discharge guide wheel 10, a traveling support 7, a traveling wheel set 8, an upper roller cutter 9, and a lower roller cutter 12. Through the rolling shearing method of the upper and lower roller cutters 12, high-quality cutting of high-strength thin plates (such as Invar steel and stainless steel) is achieved, resulting in smooth cuts without burrs or wavy deformation, without affecting the quality of subsequent automatic welding. The equipment has an automatic walking function, is easy to operate, and has high safety, making it suitable for on-site construction environments such as LNG ship cargo hold membrane enclosure systems. This utility model effectively solves the problems of low efficiency, poor quality, and significant safety hazards associated with traditional manual cutting, significantly improving the level of shipbuilding automation and construction quality.

[0055] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A single-edge folding plate shearing machine, characterized in that, It includes the chassis, drive mechanism, traveling mechanism, shearing mechanism, and material guiding mechanism; The drive mechanism is fixed inside the housing (3), and the drive mechanism includes a drive motor (1) and a reduction gearbox (2) connected to the output shaft of the drive motor (1); The shearing mechanism includes an upper roller (9) and a lower roller (12) arranged in parallel and opposite to each other. The lower roller (12) is connected to the output shaft of the reduction gearbox (2) and is driven to rotate by the drive motor (1) via the reduction gearbox (2). The walking mechanism includes walking brackets (7) symmetrically arranged on both sides of the chassis (3) and a set of unpowered walking wheels (8) installed on one side of the walking brackets (7); The material guiding mechanism includes a material inlet (5) and a material guide wheel (6) disposed on the material feeding side of the machine housing (3), and a material outlet (11) and a material discharge guide wheel (10) disposed on the material discharging side of the machine housing (3). The chassis (3) is also provided with an adjusting screw (4) for adjusting the shearing width.

2. A single-edge folding plate shearing machine according to claim 1, characterized in that, The upper hob (9) is mounted on the housing (3) in an adjustable manner via a bearing seat. The gap between the upper hob (9) and the lower hob (12) can be adjusted to accommodate plates of different thicknesses.

3. A single-edge folding plate shearing machine according to claim 1, characterized in that, One end of the adjusting screw (4) is hinged to the walking bracket (7), and the other end is provided with a handwheel. By rotating the adjusting screw (4), the position of the walking mechanism relative to the shearing mechanism can be changed, thereby realizing the precise adjustment of the shearing width.

4. A single-edge folding plate shearing machine according to claim 1, characterized in that, Both the feed guide wheel (6) and the discharge guide wheel (10) are driven wheels, and their wheel surfaces are provided with guide grooves that match the thickness of the plate, which are used to limit the displacement of the plate in the vertical direction.

5. A single-edge folding plate shearing machine according to claim 1, characterized in that, The upper hob (9) is provided with a semi-concealed protective cover on its outer side, and the lower hob (12) is located below the upper hob (9). The protective cover is fixed to the machine housing (3). The upper hob (9) only exposes the meshing part of the cutter for shearing.

6. A single-edge folding plate shearing machine according to claim 1, characterized in that, The chassis (3) is made of aluminum alloy or engineering plastic.

7. A single-edge folding plate shearing machine according to claim 1, characterized in that, The teeth of the upper hob (9) and lower hob (12) are precision ground and hardened, and their cutting edge shapes are configured to generate downward and forward pressing forces on the plate during shearing, so as to achieve burr-free cutting and drive the equipment forward.

8. A single-edge folding plate shearing machine according to claim 1, characterized in that, The shearing machine is specifically designed for shearing Invar steel plates or stainless steel plates with a thickness of 0.5mm to 1.5mm.

9. A single-edge folding plate shearing machine according to claim 1, characterized in that, The walking wheel set (8) is a rubber wheel or a polyurethane wheel.

10. A single-edge folding plate shearing machine according to claim 1, characterized in that, The gearbox (2) is a planetary gear reducer or a worm gear reducer.

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