Straight-line walking plate shearing machine and control method thereof

Abstract

The present invention provides a straight-line walking plate shearing machine and a control method thereof, which relate to the field of plate shearing machines, including a shearing machine body and a lifting mechanism; the shearing machine body is provided with a groove for the sheared plate to slide out and a lower cutter arranged at the groove; the lifting mechanism is arranged at the groove; the lifting mechanism can lift the sheared plate to a position not lower than the top of the lower cutter. The present invention can eliminate the pulling force between the cut plate and the plate to be sheared given by the shearing machine body during the walking process, thereby avoiding the occurrence of errors in the shearing process, and completely avoiding the occurrence of material jamming and the inability of the shearing machine body to walk.

Description

Technical Field

[0001] The invention relates to a plate shearing machine, in particular to a linear walking type plate shearing machine and a control method thereof. Background Art

[0002] A shearing machine is a mechanical device used to cut metal materials. A Chinese invention patent discloses an automatic walking type plate material zero friction longitudinal shearing machine (application number: 201120432797.4), which includes a shearing machine and a feeding device. A groove is provided on one side of the housing of the shearing machine, and an upper cutter and a lower cutter are installed in the groove. The outer cut surface of the upper cutter and the outer cut surface of the lower cutter are staggered; a roller is provided on the lower bottom surface of the housing, and the roller is placed on a walking guide rail installed on the ground. The roller is driven by a roller motor and can travel on the walking guide rail. A discharge roller is installed on the left side of the housing at a horizontal position with the bottom of the lower cutter, and a feed roller is installed on the right side of the housing. The upper shaft surface of the feed roller is on the same horizontal plane as the upper end surface of the lower cutter; a lifting mechanism is installed on the housing below the lower cutter, and the lifting structure is installed on one end of the roller shaft, and a lifting and rotating mechanism is installed at the other end of the roller shaft. The technical solution of the above patent uses a linear motion shearing machine in conjunction with a lifting mechanism to shear the sheet material multiple times, such as a 10m wide sheet material is sheared 5 times with a 2m cutter. In actual use, the above technical solution has certain defects. The width of the sheared steel plate gradually increases, resulting in insufficient precision of the sheared steel plate. At the same time, because the steel plate is fixed on the feeding device, it may even get stuck and the shearing machine cannot move. Summary of the invention

[0003] In response to the above technical problems, the present invention provides a linear walking plate shearing machine and a control method thereof to solve the problems of insufficient steel plate precision, material jamming, and inability of the shearing machine to move in the prior art. The structure is simple, the cost is low, and the precision is high.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] The present invention provides a control method for a straight-line walking sheet metal shearing machine, comprising sending the sheet metal to be sheared to the shearing machine to wait for shearing; the shearing machine shears the sheet metal to be sheared to obtain a cut sheet metal; the shearing machine shears the sheet metal to be sheared after moving forward to a position; the shearing machine repeats moving and shearing until the cut sheet metal is separated from the sheet metal to be sheared; preferably, when the shearing machine is preparing to move forward or is moving forward after shearing, the cut sheet metal is lifted to a level not lower than the top of the lower cutting knife of the shearing machine, and the cut sheet metal is lowered when the forward movement ends.

[0006] The control method of the straight-line walking sheet metal shearing machine provided by the present invention preferably comprises that "the shearing machine is preparing to move forward or is in the process of moving forward after shearing" is specifically: the shearing machine is preparing to move forward or is in the process of moving forward after completing at least one shearing.

[0007] The present invention provides a straight-line walking plate shearing machine, comprising a shearing machine body and a lifting mechanism; the shearing machine body is provided with a groove for the sheared plate to slide out and a lower cutting knife arranged at the groove; the lifting mechanism is arranged at the groove; the lifting mechanism can lift the sheared plate to a level not lower than the top of the lower cutting knife.

[0008] In the linear walking sheet metal shearing machine provided by the present invention, preferably, the lifting mechanism is a lifting mechanism capable of lifting the sheared sheet metal; the lifting mechanism can lift the sheared sheet metal to a level not lower than the top of the lower cutting knife.

[0009] The straight-line walking sheet metal shearing machine provided by the present invention preferably comprises a telescopic mechanism; the telescopic mechanism comprises a fixed part and a telescopic part arranged on the fixed part; the telescopic mechanism is fixed to the shearing machine body through the fixed part; the telescopic part is located at the top; the telescopic part can lift the sheared sheet metal to a level not lower than the top of the lower cutting knife.

[0010] The linear walking plate shearing machine provided by the present invention preferably also includes a horizontally arranged top roller; the top roller is fixed on the telescopic part; the top roller can be raised and lowered horizontally driven by the telescopic part; the axis of the top roller is perpendicular to the lower cutting knife.

[0011] In the linear walking type sheet metal shearing machine provided by the present invention, preferably, the telescopic mechanism comprises two hydraulic cylinders; and both ends of the top roller are respectively fixed to one of the hydraulic cylinders.

[0012] In the linear walking type sheet metal shearing machine provided by the present invention, preferably, the lifting mechanism is fixed on the shell of the shearing machine body below the groove.

[0013] The linear travel sheet metal shearing machine provided by the present invention preferably comprises: the lifting mechanism further comprising a fixed plate; the lifting mechanism is fixed to the shell through the fixed plate; the fixed part of the telescopic mechanism is fixed to the fixed plate; the linear travel sheet metal shearing machine further comprises a guide mechanism for ensuring the linear movement of the telescopic part; the guide mechanism is fixed to the fixed plate; the telescopic part passes through the guide mechanism.

[0014] In the linear walking sheet metal shearing machine provided by the present invention, preferably, the lifting mechanism further comprises a protective cover; the protective cover is fixed to the fixed plate and surrounds the telescopic mechanism; the telescopic part of the telescopic mechanism penetrates the protective cover.

[0015] The above technical solution has the following advantages or beneficial effects: the present invention provides a straight-line walking plate shearing machine, including a shearing machine body and a lifting mechanism; the shearing machine body is provided with a groove for the sheared plate to slide out and a lower cutter arranged at the groove; the lifting mechanism is arranged at the groove; the lifting mechanism can lift the sheared plate to a position not lower than the top of the lower cutter. The present invention can eliminate the pulling force between the cut plate and the plate to be sheared given by the shearing machine body during walking, thereby avoiding errors in the shearing process, and completely avoiding the occurrence of material jamming and the inability of the shearing machine body to walk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention and its features, configurations and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts throughout the drawings. The drawings are not drawn to scale, but rather to illustrate the subject matter of the present invention.

[0017] Figure 1 is a schematic structural diagram of a linear walking plate shearing machine provided in Example 1 of the present invention;

[0018] Figure 2 It is a partial structural schematic diagram of the straight-line walking type sheet metal shearing machine provided in Example 1 of the present invention;

[0019] Figure 3 It is a partial structural schematic diagram of the straight-line sheet metal shearing machine provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0021] Embodiment 1:

[0022] like Figures 1 to 3As shown, the straight-line walking plate shearing machine provided by Embodiment 1 of the present invention comprises a shearing machine body 1 and a lifting mechanism 2; the shearing machine body 1 is provided with a groove 11 for the sheared plate to slide out and a lower cutter 12 arranged at the groove 11; the lifting mechanism 2 is arranged at the groove 11; the lifting mechanism 2 can lift the sheared plate to a position not lower than the top of the lower cutter 12. In the existing straight-line walking plate shearing machine, such as the technical solution disclosed in the Chinese patent application No. 201120432797.4, in the actual working process, the width of the sheared steel plate will gradually increase, resulting in insufficient precision of the sheared steel plate. At the same time, since the steel plate is fixed on the feeding device, it may even get stuck and the shearing machine cannot move. After numerous creative efforts, the applicant discovered that the reason for the above problems is that when the cut sheet is not separated from the sheet to be sheared, after being cut, the cut sheet will sag under the action of gravity, and the rough surface of the cut (which looks very flat under macroscopic conditions and very rough under microscopic conditions) will be close to the side wall of the lower cutter 12. During the movement of the shearing machine body, the side wall of the lower cutter 12 and the rough surface of the cut sheet will exert a force on the cut sheet and the sheet to be sheared. As a result, after each movement and shearing, the width of the sheet gradually increases. When the width of the sheet increases to a certain level, the reaction force of the cut sheet on the shearing machine body will cause the shearing machine to be unable to move, resulting in jamming and even damage to the lower cutter. Based on the above problems, the present application adopts a method of lifting the cut sheet by the lifting mechanism 2 before the shearing machine moves, eliminating the tension between the cut sheet and the sheet to be sheared given by the shearing machine body during the movement, thereby avoiding errors in the shearing process and completely avoiding jamming and the inability of the shearing machine body to move.

[0023] In order to adopt a simple structure and reduce production costs, the lifting mechanism 2 in the embodiment 1 of the present invention is a lifting mechanism 2 that can lift the sheared sheet material; the lifting mechanism 2 can lift the sheared sheet material to no lower than the top of the lower cutter 12. The lifting mechanism 2 includes a telescopic mechanism 21; the telescopic mechanism 21 includes a fixed portion 211 and a telescopic portion 212 arranged on the fixed portion 211; the telescopic mechanism 21 is fixed to the shearing machine body 1 through the fixed portion 211; the telescopic portion 212 is located above the fixed portion 211; the telescopic portion 212 can lift the sheared sheet material to no lower than the top of the lower cutter 12. After at least two shearings, the cut sheet material can fall on the telescopic portion 212, so that it can be lifted by the telescopic portion 212. Through the upward and downward extension of the telescopic portion 212, the cut sheet material can be lifted to no lower than the top of the lower cutter 12 before the shearing machine moves, thereby ensuring that the cut sheet material is separated from the side wall of the lower cutter 12 during the movement.

[0024] In order to facilitate the movement of the shearing machine and reduce the friction between the lifting mechanism 2 and the cut sheet material, embodiment 1 of the present invention also includes a horizontally arranged top roller 3; the top roller 3 is fixed on the telescopic part 212; the top roller 3 can be raised and lowered horizontally under the drive of the telescopic part 212; the axis of the top roller 3 is perpendicular to the lower cutting knife 12.

[0025] The telescopic mechanism 21 in the embodiment 1 of the present invention comprises two hydraulic cylinders 20 ; the two ends of the top roller 3 are respectively fixed to one hydraulic cylinder 20 ; the lifting mechanism 2 is fixed to the housing 13 of the shearing machine body 1 below the groove 11 .

[0026] In order to adapt to the device component module, the lifting mechanism 2 also includes a fixing plate 22; the lifting mechanism 2 is fixed to the housing 13 through the fixing plate 22; the fixing portion 211 of the telescopic mechanism 21 is fixed to the fixing plate 22. If the lifting mechanism 2 in this embodiment is damaged, it can be easily replaced or repaired by separating the fixing plate 22 from the housing 13 of the shearing machine body 1.

[0027] In the embodiment 1 of the present invention, the lifting mechanism 2 preferably further comprises a protective cover 23; the protective cover 23 is fixed on the fixing plate 22 and surrounds the telescopic mechanism 21; the telescopic portion 212 of the telescopic mechanism 21 penetrates the protective cover 23. By providing the protective cover, the hydraulic cylinder 20 can be effectively protected and the service life of the hydraulic cylinder can be extended.

[0028] In order to ensure the linear motion of the telescopic rod of the hydraulic cylinder 20 and avoid bending under the pressure of the steel plate, the embodiment 1 of the present invention also includes a guide mechanism 5 for ensuring the linear motion of the telescopic part; the guide mechanism 5 is fixed on the fixed plate 22; the guide mechanism 5 includes two fixing parts 51 penetrated by the telescopic rod of the hydraulic cylinder 20, so as to ensure that the telescopic rod of the hydraulic cylinder 20 always moves linearly.

[0029] Embodiment 2:

[0030] The control method provided in Example 2 of the present invention is based on the straight-line walking sheet metal shearing machine provided in Example 1, but is not limited to the straight-line walking sheet metal shearing machine provided in Example 1, including sending the sheet metal to be sheared to the shearing machine to wait for shearing; the shearing machine shears the sheet metal to be sheared to obtain the cut sheet metal; the shearing machine shears the sheet metal to be sheared after moving forward to the position; the shearing machine repeats the movement and shearing until the cut sheet metal is separated from the sheet metal to be sheared; wherein, the shearing machine lifts the cut sheet metal to a level not lower than the top of the lower cutting blade of the shearing machine when preparing to move forward or during the process of moving forward after shearing, and puts down the cut sheet metal at the end of the forward movement. By lifting the cut sheet metal to a level not lower than the top of the lower cutting blade of the shearing machine, the force between the cut sheet metal and the lower cutting blade can be avoided during the movement of the shearing machine, thereby avoiding errors, and completely avoiding the occurrence of material jamming and the inability of the shearing machine body to move.

[0031] At the same time, during the first shearing, the end of the cut sheet may not reach the position of the top roller due to gravity. At this time, when the top roller rises, the cut sheet may drill under the top roller, causing the top roller to fail to lift the cut sheet normally. In order to solve this technical problem, the "shearing machine is preparing to move forward or moving forward after shearing" is specifically: the shearing machine is preparing to move forward or moving forward after completing at least the second shearing. After completing at least the second shearing, it can be ensured that the cut sheet can definitely be lifted by the top roller, avoiding the situation where the top roller cannot work normally.

[0032] Those skilled in the art should understand that the above control method can be implemented by using a PLC control circuit, or can be implemented by manual operation or manually operated mechanical equipment.

[0033] Those skilled in the art should understand that they can implement variations by combining the prior art and the above embodiments, which will not be described in detail here; such variations do not affect the essential content of the present invention and will not be described in detail here.

[0034] The preferred embodiments of the present invention are described above; it should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention; therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A control method for a linear walking plate shearing machine, comprising sending a plate to be sheared to the shearing machine to wait for shearing; the shearing machine shears the plate to be sheared to obtain a cut plate; the shearing machine moves forward to a position and shears the plate to be sheared; the shearing machine repeatedly moves and shears until the cut plate is separated from the plate to be sheared; characterized in that When the shearing machine is preparing to move forward or is in the process of moving forward after shearing, the cut sheet is lifted to a level not lower than the top of the lower cutting blade of the shearing machine, and the cut sheet is lowered at the end of the forward movement; It also includes a lifting mechanism; the shearing machine body is provided with a groove for the sheared sheet to slide out and a lower cutting knife arranged at the groove; the lifting mechanism is arranged at the groove; the lifting mechanism can lift the sheared sheet to no lower than the top of the lower cutting knife; the lifting mechanism is a lifting mechanism that can lift the sheared sheet; the lifting mechanism can lift the sheared sheet to no lower than the top of the lower cutting knife.

2. The control method of the straight-line plate shearing machine according to claim 1, characterized in that: The “shearing machine is preparing to move forward or is in the process of moving forward after shearing” specifically refers to: the shearing machine is preparing to move forward or is in the process of moving forward after completing at least two shearings.

3. The control method of the straight-line plate shearing machine according to claim 1, characterized in that: The lifting mechanism includes a telescopic mechanism; the telescopic mechanism includes a fixed part and a telescopic part arranged on the fixed part; the telescopic mechanism is fixed to the shearing machine body through the fixed part; the telescopic part is located above the fixed part; the telescopic part can lift the sheared sheet material to no lower than the top of the lower cutting knife.

4. The control method of the straight-line plate shearing machine according to claim 3, characterized in that: It also includes a horizontally arranged top roller; the top roller is fixed on the telescopic part; the top roller can be raised and lowered horizontally under the drive of the telescopic part; the axis of the top roller is perpendicular to the lower cutting knife.

5. The control method of the straight-line plate shearing machine according to claim 4, characterized in that: The telescopic mechanism comprises two hydraulic cylinders; the two ends of the top roller are respectively fixed to one of the hydraulic cylinders.

6. The control method of the sheet metal shearing machine during straight-line travel according to claim 3, characterized in that: The lifting mechanism is fixed on the shell of the shearing machine body below the groove.

7. The control method of the straight-line plate shearing machine according to claim 6, characterized in that: The lifting mechanism also includes a fixed plate; the lifting mechanism is fixed to the shell through the fixed plate; the fixed part of the telescopic mechanism is fixed to the fixed plate; the linear walking plate shearing machine also includes a guide mechanism for ensuring the linear movement of the telescopic part; the guide mechanism is fixed to the fixed plate; the telescopic part passes through the guide mechanism.

8. The control method of the straight-line plate shearing machine according to claim 7, characterized in that: The lifting mechanism further comprises a protective cover; the protective cover is fixed on the fixing plate and surrounds the telescopic mechanism; the telescopic part of the telescopic mechanism penetrates the protective cover.

Images