A slitting machine capable of automatically adjusting the transverse width of a plate strip and a method of using the same

Abstract

The present invention discloses a longitudinal shearing machine capable of automatically adjusting the transverse width of a plate and a method for using the same, and belongs to the field of metal processing technology. The longitudinal shearing machine comprises a frame, an upper screw slide mechanism, an upper cutter bearing mechanism, a lower cutter bearing mechanism and a lower screw slide mechanism. A cutting drive mechanism is arranged on one side of the lower cutter bearing mechanism, and a lower shaft expansion and contraction fixing mechanism and an upper shaft expansion and contraction fixing mechanism are arranged on the other side of the lower cutter bearing mechanism and the upper cutter bearing mechanism. A synchronous wheel assembly is arranged between the lower shaft expansion and contraction fixing mechanism and the upper shaft expansion and contraction fixing mechanism. The method for using the above-mentioned device is also disclosed. The longitudinal shearing machine capable of automatically adjusting the transverse width of a plate and a method for using the same are adopted to automatically arrange the cutter according to actual production needs. At the same time, the cutter is axially fixed by the upper shaft expansion and contraction fixing mechanism and the lower shaft expansion and contraction fixing mechanism. The position installation is reliable, the position accuracy of the cutter is improved, the consistency of the size of the plate and the strip after cutting is ensured, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, and in particular to a slitting machine capable of automatically adjusting the transverse width of a plate strip and a method of using the slitting machine. Background Art

[0002] The longitudinal shearing of wide metal strips into multiple narrow strips that meet the use requirements is an important preliminary process in the field of metal processing technology. While reducing waste generation and improving resource utilization, it is necessary to ensure the dimensional accuracy of the product and the subsequent processing quality. When adjusting the width of the strip, traditional longitudinal shearing equipment often requires workers to shut down the equipment and manually adjust the blade spacing. This is not only time-consuming and greatly reduces production efficiency, but also due to the limitations of manual adjustment, traditional longitudinal shearing machines are prone to dimensional deviation when adjusting the width, which in turn affects product quality.

[0003] After searching, the patent with publication number CN113334121B discloses a method and system for installing the cutter of a slitting machine, and a method and system for disassembling the cutter of a slitting machine, and realizes automation in the process of arranging and removing the cutter, so that the present invention is conducive to improving the degree of automation of the slitting machine, improving the output efficiency of the slitting machine, reducing the labor intensity of the operators, and solving the problems of low efficiency and high risk in the prior art when manually arranging and removing the cutter. However, the use of robots for arranging the cutter is costly and the method is complicated. The patent with publication number CN215145208U discloses a slitting machine that can automatically arrange the cutter. It can automatically arrange the cutter and can cut a variety of wide materials according to needs. It is more flexible to use, but the blade is adjusted by pushing the blade, and the blade fixation is unreliable. It is easy to offset during operation, resulting in low precision. Summary of the invention

[0004] The purpose of the present invention is to provide a longitudinal shearing machine which can automatically adjust the transverse width of a plate strip and a method for using the same, so as to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides a longitudinal shearing machine for automatically adjusting the lateral width of a plate strip, comprising a frame, on which an upper screw slide mechanism, an upper cutter bearing mechanism, a lower cutter bearing mechanism and a lower screw slide mechanism are arranged in sequence from top to bottom, a cutting drive mechanism is arranged on one side of the lower cutter bearing mechanism, the lower cutter bearing mechanism and the upper cutter bearing mechanism are respectively connected to a lower shaft expansion and contraction fixing mechanism and an upper shaft expansion and contraction fixing mechanism, and a synchronous wheel assembly is arranged between the lower shaft expansion and contraction fixing mechanism and the upper shaft expansion and contraction fixing mechanism.

[0006] Preferably, the frame includes a top plate and a bottom plate arranged in parallel, both the top plate and the bottom plate are provided with strip-shaped through holes, a first side plate, a second side plate and a third side plate are arranged between the top plate and the bottom plate, and a support frame is arranged at the bottom of the bottom plate.

[0007] Preferably, the upper screw slide mechanism comprises a first upper fixed plate and a second upper fixed plate, the first upper fixed plate and the second upper fixed plate are fixed to the upper surface of the top plate, an upper screw and an upper guide rail are arranged between the first upper fixed plate and the second upper fixed plate, an upper slider is arranged on the upper screw and the upper guide rail, an upper claw is arranged on the upper slider, one end of the upper screw is connected to an upper servo motor through an upper coupling, and the upper servo motor is mounted on the upper surface of the top plate;

[0008] The lower lead screw slide mechanism comprises a first lower fixed plate and a second lower fixed plate, the first lower fixed plate and the second lower fixed plate are fixed to the lower surface of the bottom plate, a lower lead screw and a lower guide rail are arranged between the first lower fixed plate and the second lower fixed plate, a lower slider is arranged under the lower lead screw and the lower guide rail, a lower claw is arranged under the lower slider, one end of the lower lead screw is connected to a lower servo motor through a lower coupling; the lower servo motor is installed on the support frame;

[0009] An upper distance sensor and a lower distance sensor are respectively mounted on the second upper fixing plate and the second lower fixing plate. The upper distance sensor and the lower distance sensor are respectively arranged opposite to the upper sliding block and the lower sliding block.

[0010] Preferably, the upper cutter bearing mechanism comprises an upper mandrel, which sequentially comprises a first upper moving area, an upper knife storage area, an upper working area and a second upper moving area, and a circumferential side of the upper working area is connected to a plurality of circumferentially distributed upper arc positioning plates through an upper connecting plate; the first upper moving area is installed on the first side plate by installing a linear bearing;

[0011] The lower cutter bearing mechanism includes a lower mandrel, which includes a first lower moving area, a lower knife storage area, a lower working area and a second lower moving area in sequence. The circumferential side of the lower working area is connected with a plurality of circumferentially distributed lower arc positioning plates through a lower connecting plate; the first lower moving area is installed on the first side plate by installing a linear bearing;

[0012] The circumferential sides of the upper knife storage area and the lower knife storage area are respectively provided with an upper knife storage positioning convex strip and a lower knife storage positioning convex strip;

[0013] The outer sides of the lower arc positioning plate and the upper arc positioning plate are respectively provided with a lower blade axial positioning convex strip and an upper blade axial positioning convex strip.

[0014] Preferably, the cutting drive mechanism comprises a main drive servo motor, which is connected to the lower core shaft via a clutch; the main drive servo motor and the clutch are mounted on the first side plate.

[0015] Preferably, the upper shaft expansion and contraction fixing mechanism comprises an upper linear bearing, an upper connecting flange, an upper rolling bearing and an upper expansion and contraction driving hydraulic cylinder, the upper expansion and contraction driving hydraulic cylinder is mounted on the third side plate, and the upper expansion and contraction driving hydraulic cylinder is connected to the end surface of the second upper moving area through an upper hydraulic rotating joint; the second upper moving area is connected to the upper connecting flange through an upper linear bearing, so that the second upper moving area moves axially in the upper linear bearing;

[0016] The lower shaft expansion and contraction fixing mechanism includes a lower linear bearing, a lower connecting flange, a lower rolling bearing and a lower expansion and contraction driving hydraulic cylinder. The lower expansion and contraction driving hydraulic cylinder is installed on the third side plate. The lower expansion and contraction driving hydraulic cylinder is connected to the end surface of the second lower moving area through a lower hydraulic rotating joint; the second lower moving area is connected to the lower connecting flange through a lower linear bearing, so that the second lower moving area moves axially in the lower linear bearing;

[0017] The circumferential surfaces of the upper connecting flange and the lower connecting flange are both two-stage stepped structures, and the two-stage stepped structure includes a first-stage circumferential surface and a second-stage circumferential surface. The first-stage circumferential surface in the upper connecting flange is connected to the upper synchronous gear key in the synchronous wheel assembly, and the second-stage circumferential surface in the upper connecting flange is interference connected through the upper hole on the second side plate of the upper rolling bearing. The first-stage circumferential surface in the lower connecting flange is connected to the lower synchronous gear key in the synchronous wheel assembly, and the second-stage circumferential surface in the lower connecting flange is interference connected through the lower hole on the second side plate of the lower rolling bearing.

[0018] Preferably, radial guide grooves are provided on the upper connecting flange and the lower connecting flange, and the upper arc positioning plate is arranged in the radial guide groove of the upper connecting flange through the upper rotating block, and the lower arc positioning plate is arranged in the radial guide groove of the lower connecting flange through the lower rotating block, so that under the action of the upper expansion and contraction driving hydraulic cylinder and the lower expansion and contraction driving hydraulic cylinder, the upper core shaft and the lower core shaft move axially, and the upper connecting plate and the lower connecting plate respectively drive the upper arc positioning plate and the lower arc positioning plate to move radially along the radial guide grooves.

[0019] Preferably, the outer diameter formed by the expansion of several circumferentially distributed upper arc positioning plates and several circumferentially distributed lower arc positioning plates is the same as the inner diameter of the cutter, and the blade axial positioning convex strip is located in the groove inside the cutter to limit the axial position of the cutter.

[0020] A method for using the slitting machine for automatically adjusting the transverse width of a plate strip is provided, and the specific steps are as follows:

[0021] Step S1: preliminary preparation;

[0022] Calibrate the slitting machine according to processing needs and input processing parameters, and calculate the required number of cutting knife groups and cutting positions according to the processing parameters;

[0023] Step S2: positioning the cutter;

[0024] The cutters are moved by the upper screw slide mechanism and the lower screw slide mechanism according to the required number of cutter groups and the cutting position calculated in step S1;

[0025] Step S3: cutting of strips;

[0026] Step S31: the upper extension and retraction driving hydraulic cylinder and the lower extension and retraction driving hydraulic cylinder are extended, the upper shaft extension and retraction fixing mechanism and the lower shaft extension and retraction fixing mechanism are tensioned, so that the axial position of the blade is fixed, and the clutch is closed;

[0027] Step S32: starting the main drive servo motor;

[0028] Step S33: the lower mandrel drives the lower cutter to rotate and cut, and at the same time the lower synchronous gear engages with the upper synchronous gear for transmission, and the upper mandrel drives the upper cutter to rotate and cut until the cutting is completed;

[0029] Step S34: turning off the main drive servo motor, stopping cutting, retracting the upper and lower stretching and retracting drive hydraulic cylinders, disconnecting the clutch, and retracting the upper and lower shaft stretching and retracting fixing mechanisms;

[0030] Step S4: The cutter is retracted.

[0031] Preferably, in step S1,

[0032] Step S11: Using the distance sensor as a reference, establish a position coordinate system along the length direction of the upper mandrel ; Based on the lower distance sensor, establish the position coordinate system along the length direction of the lower axis ;

[0033] Step S12: Read the number N of strips to be divided into, ; Then the number of cutter groups required is A=N-1, and the starting storage positions of each group of cutters are fixed in the coordinate system and marked from right to left. , ,... ,... ;

[0034] Step S13: The strip is positioned with the second side plate as the reference, and the cutting position in the coordinate system is calculated according to the strip width and the width of each cutting part. , ,... ,... , let i=1;

[0035] Step S14: The upper distance sensor monitors the position of the upper slider ; The lower distance sensor monitors the position of the lower slider ;

[0036] In step S2;

[0037] Step S21: Start the upper servo motor, and move the upper claw upward to the cutting knife storage position move;

[0038] Start the lower servo motor, and the lower claw moves downward to the knife storage position move;

[0039] Step S22: Positioning error coefficient of the i-th upper cutter ; Where d is the width of the cutter and D is the width of the upper slider;

[0040] Positioning error coefficient of the i-th lower cutter ;

[0041] Upper distance sensor and lower distance sensor real-time measurement and The control system will make position corrections according to the feedback data until the value is satisfied. and ;

[0042] Step S23: The upper clamping claw first grabs the i-th upper cutter to the cutting position Move in the direction; the lower claw grabs the i-th lower cutter to the cutting position Direction of movement;

[0043] Step S24: Positioning error coefficient of the i-th upper cutter ;

[0044] Positioning error coefficient of the i-th lower cutter ;

[0045] Upper distance sensor and lower distance sensor real-time measurement and The control system will make position corrections according to the feedback data until the value is satisfied. and ;

[0046] Step S25: determine whether i is equal to A. If not, set i=i+1 and go to step S21; if yes, all cutters are moved to the cutting position, the upper and lower jaws are relaxed and moved to the knife storage area, and the upper and lower servo motors are turned off;

[0047] In step S4;

[0048] Step S41: Start the upper servo motor, and the upper clamping claw moves from the upper knife storage area to the cutting position first. Direction of movement;

[0049] Start the lower servo motor, and the lower clamping claw moves from the lower knife storage area to the cutting position. Direction of movement, i=A;

[0050] Step S42: Positioning error coefficient of the i-th upper cutter ; Positioning error coefficient of the i-th lower cutter , the upper distance sensor and the lower distance sensor measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and ;

[0051] Step S43: The lower clamping claw first grabs the i-th lower cutter and moves it to the cutter storage position Move in the direction; the upper claw grabs the i-th upper cutter and moves it to the cutter storage position Direction of movement;

[0052] Step S44: Positioning error coefficient of the i-th upper cutter ; Positioning error coefficient of the i-th lower cutter , the upper distance sensor and the lower distance sensor measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and ;

[0053] Step S45, determine whether i is equal to 1, if not, set i=i-1 and go to step S41; if so, all the cutters are returned to their positions, the upper clamping claws are relaxed and moved to the upper knife storage area, and the upper servo motor is turned off; the lower clamping claws are relaxed and moved to the lower knife storage area, and the lower servo motor is turned off.

[0054] Therefore, the present invention adopts the above-mentioned longitudinal shearing machine for automatically adjusting the transverse width of the plate and strip and its use method, which has the beneficial effects of: automatically arranging the cutters according to actual production needs, and axially fixing the cutters through the upper shaft expansion and contraction fixing mechanism and the lower shaft expansion and contraction fixing mechanism, and the position installation is reliable, thereby improving the processing accuracy, and using a servo motor to adjust the cutter position to improve the cutter position accuracy, thereby ensuring the consistency of the size of the plate and strip after cutting and improving product quality.

[0055] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a structural schematic diagram of a slitting machine for automatically adjusting the transverse width of a plate strip according to the present invention;

[0057] Figure 2 It is a schematic diagram of the frame structure of the present invention;

[0058] Figure 3 It is a schematic diagram of the upper screw slide mechanism of the present invention;

[0059] Figure 4 It is a schematic diagram of the lower screw slide mechanism of the present invention;

[0060] Figure 5 is a schematic diagram of the upper cutter bearing mechanism of the present invention;

[0061] Figure 6 is a schematic diagram of the lower cutter bearing mechanism of the present invention;

[0062] Figure 7 It is a schematic diagram of the upper shaft expansion and contraction fixing mechanism of the present invention;

[0063] Figure 8 It is a schematic diagram of the lower shaft expansion and contraction fixing mechanism of the present invention;

[0064] Fig. 9 It is a schematic diagram of the partitioning of the upper mandrel of the present invention;

[0065] Fig.10 It is a schematic diagram of the partitioning of the lower mandrel of the present invention;

[0066] Fig.11 is a cross-sectional view of the upper cutter bearing mechanism and the lower cutter bearing mechanism of the present invention when they are tensioned;

[0067] Fig.12 is a cross-sectional view of the upper cutter bearing mechanism of the present invention when it is retracted;

[0068] Fig.13 It is a schematic diagram of a method for determining a cutter placement distance of the present invention;

[0069] Fig.14 It is a work flow chart of the present invention.

[0070] Reference numerals

[0071] 1. Frame; 101. Top plate; 102. Bottom plate; 103. First side plate; 104. Second side plate; 105. Third side plate; 106. Support frame; 107. Strip-shaped through hole;

[0072] 2. Upper lead screw slide mechanism; 21. First upper fixed plate; 22. Second upper fixed plate; 23. Upper lead screw; 24. Upper guide rail; 25. Upper slider; 26. Upper claw; 27. Upper coupling; 28. Upper servo motor; 29. ​​Upper distance sensor;

[0073] 3. Lower lead screw slide mechanism; 31. First lower fixed plate; 32. Second lower fixed plate; 33. Lower lead screw; 34. Lower guide rail; 35. Lower slide block; 36. Lower claw; 37. Lower coupling; 38. Lower servo motor; 39. Lower distance sensor;

[0074] 4. Upper cutter bearing mechanism; 41. Upper mandrel; 411. First upper moving area; 412. Upper cutter storage area; 4121. Upper cutter storage positioning convex strip; 413. Upper working area; 414. Second upper moving area; 42. Upper connecting plate; 43. Upper arc positioning plate; 431. Upper blade axial positioning convex strip;

[0075] 5. Lower cutter bearing mechanism; 51. Lower mandrel; 511. First lower moving area; 512. Lower cutter storage area; 5121. Cutter storage positioning convex strip; 513. Lower working area; 514. Second lower moving area; 52. Lower connecting plate; 53. Lower arc positioning plate; 531. Blade axial positioning convex strip; 6. Cutting drive mechanism; 61. Main drive servo motor; 62. Clutch;

[0076] 7. Upper shaft expansion and contraction fixing mechanism; 71. Upper linear bearing; 72. Upper connecting flange; 73. Upper rolling bearing; 74. Upper expansion and contraction driving hydraulic cylinder; 75. Upper hydraulic rotary joint; 76. Upper rotating block;

[0077] 8. Lower shaft expansion and contraction fixing mechanism; 81. Lower linear bearing; 82. Lower connecting flange; 83. Lower rolling bearing; 84. Lower expansion and contraction driving hydraulic cylinder; 85. Lower hydraulic rotary joint; 86. Lower rotating block;

[0078] 9. Radial guide groove; 10. Upper synchronous gear; 11. Install linear bearing; 12. Upper cutter; 13. Lower cutter; 14. Lower synchronous gear. DETAILED DESCRIPTION

[0079] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", and "connection" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0081] like Figure 1As shown, a longitudinal shearing machine for automatically adjusting the transverse width of a plate strip comprises a frame 1, on which an upper screw slide mechanism 2, an upper cutter bearing mechanism 4, a lower cutter bearing mechanism 5 and a lower screw slide mechanism 3 are arranged in sequence from top to bottom, a cutting drive mechanism 6 is arranged on one side of the lower cutter bearing mechanism 5, a lower shaft expansion and contraction fixing mechanism 8 and an upper shaft expansion and contraction fixing mechanism 7 are arranged on the other side of the lower cutter bearing mechanism 5 and the other side of the upper cutter bearing mechanism 4, respectively, and a synchronous wheel assembly is arranged between the lower shaft expansion and contraction fixing mechanism 8 and the upper shaft expansion and contraction fixing mechanism 7.

[0082] like Figure 2 As shown, the frame 1 includes a top plate 101 and a bottom plate 102 arranged in parallel, both the top plate 101 and the bottom plate 102 are provided with a strip-shaped through hole 107, a first side plate 103, a second side plate 104 and a third side plate 105 are arranged between the top plate 101 and the bottom plate 102, and a support frame 106 is arranged at the bottom of the bottom plate 102.

[0083] like Figure 3 - Figure 4 As shown, the upper screw slide mechanism 2 includes a first upper fixed plate 21 and a second upper fixed plate 22, and the first upper fixed plate 21 and the second upper fixed plate 22 are fixed on the upper surface of the top plate 101, and an upper screw 23 and an upper guide rail 24 are arranged between the first upper fixed plate 21 and the second upper fixed plate 22, and an upper slider 25 is arranged on the upper screw 23 and the upper guide rail 24, and an upper claw 26 is arranged on the upper slider 25, and one end of the upper screw 23 is connected to an upper servo motor 28 through an upper coupling 27, and the upper servo motor 28 is installed on the upper surface of the top plate 101. The lower screw slide mechanism 3 includes a first lower fixed plate 31 and a second lower fixed plate 32, which are fixed to the lower surface of the bottom plate 102, a lower screw 33 and a lower guide rail 34 are arranged between the first lower fixed plate 31 and the second lower fixed plate 32, a lower slider 35 is arranged under the lower screw 33 and the lower guide rail 34, a lower claw 36 is arranged under the lower slider 35, one end of the lower screw 33 is connected to a lower servo motor 38 through a lower coupling 37; the lower servo motor 38 is installed on the support frame 106. An upper distance sensor 29 and a lower distance sensor 39 are respectively installed on the second upper fixed plate 22 and the second lower fixed plate 32, and the upper distance sensor 29 and the lower distance sensor 39 are respectively arranged opposite to the upper slider 25 and the lower slider 35, and are used to detect the positions of the upper slider 25 and the lower slider 35. In this embodiment, the width of the upper slider 25 and the lower slider 35 is three times the width of the cutter.

[0084] like Figure 5 - Figure 6 As shown, the upper cutter bearing mechanism 4 includes an upper mandrel 41, as shown in FIG. Fig. 9As shown, the upper mandrel 41 includes a first upper moving area 411, an upper knife storage area 412, an upper working area 413 and a second upper moving area 414 in sequence. The circumferential side of the upper working area 413 is connected to a plurality of circumferentially distributed upper arc positioning plates 43 through an upper connecting plate 42; the first upper moving area 411 is installed on the first side plate 103 by installing a linear bearing 11. The lower cutter bearing mechanism 5 includes a lower mandrel 51, as shown in FIG. Fig.10 As shown, the lower mandrel 51 includes a first lower moving area 511, a lower knife storage area 512, a lower working area 513 and a second lower moving area 514 in sequence. The circumferential side of the lower working area 513 is connected to a plurality of circumferentially distributed lower arc positioning plates 53 through a lower connecting plate 52; the first lower moving area 511 is installed on the first side plate 103 by installing a linear bearing 11. The circumferential sides of the upper knife storage area 412 and the lower knife storage area 512 are respectively provided with an upper knife storage positioning convex strip 4121 and a lower knife storage positioning convex strip 5121 for radial positioning of the cutter. The outer sides of the lower arc positioning plate 53 and the upper arc positioning plate 43 are respectively provided with a lower blade axial positioning convex strip 531 and an upper blade axial positioning convex strip 431.

[0085] The cutting drive mechanism 6 includes a main drive servo motor 61 , which is connected to the lower mandrel 51 via a clutch 62 ; the main drive servo motor 61 and the clutch 62 are mounted on the first side plate 103 .

[0086] like Figure 7 - Figure 8As shown, the upper shaft expansion and contraction fixing mechanism 7 includes an upper linear bearing 71, an upper connecting flange 72, an upper rolling bearing 73 and an upper expansion and contraction driving hydraulic cylinder 74. The upper expansion and contraction driving hydraulic cylinder 74 is mounted on the third side plate 105 and connected to the end surface of the second upper moving area 414 through an upper hydraulic rotating joint 75; the second upper moving area 414 is connected to the upper connecting flange 72 through the upper linear bearing 71, so that the second upper moving area 414 moves axially in the upper linear bearing 71. The lower shaft expansion and contraction fixing mechanism 8 includes a lower linear bearing 81, a lower connecting flange 82, a lower rolling bearing 83 and a lower expansion and contraction driving hydraulic cylinder 84. The lower expansion and contraction driving hydraulic cylinder 84 is mounted on the third side plate 105 and connected to the end surface of the second lower moving area 514 through a lower hydraulic rotating joint 85; the second lower moving area 514 is connected to the lower connecting flange 82 through the lower linear bearing 81, so that the second lower moving area 514 moves axially in the lower linear bearing 81. The circumferential surfaces of the upper connecting flange 72 and the lower connecting flange 82 are both two-stage stepped structures, and the two-stage stepped structure includes a first-stage circumferential surface and a second-stage circumferential surface. The first-stage circumferential surface in the upper connecting flange 72 is key-connected with the upper synchronous gear 10 in the synchronous wheel assembly, and the second-stage circumferential surface in the upper connecting flange 72 is interference-connected through the upper hole on the second side plate 104 of the upper rolling bearing 73. The first-stage circumferential surface in the lower connecting flange 82 is key-connected with the lower synchronous gear 14 in the synchronous wheel assembly, and the second-stage circumferential surface in the lower connecting flange 82 is interference-connected through the lower hole on the second side plate 104 of the lower rolling bearing 83. Radial guide grooves 9 are provided on both the upper connecting flange 72 and the lower connecting flange 82. The upper arc positioning plate 43 is disposed in the radial guide groove 9 of the upper connecting flange 72 through the upper rotating block 76, and the lower arc positioning plate 53 is disposed in the radial guide groove 9 of the lower connecting flange 82 through the lower rotating block 86, so that under the action of the upper expansion and contraction driving hydraulic cylinder 74 and the lower expansion and contraction driving hydraulic cylinder 84, the upper mandrel 41 and the lower mandrel 51 move axially, and the upper connecting plate 42 and the lower connecting plate 52 respectively drive the upper arc positioning plate 43 and the lower arc positioning plate 53 to move radially along the radial guide grooves 9. The outer diameter formed by the expansion of a plurality of circumferentially distributed upper arc positioning plates 43 and a plurality of circumferentially distributed lower arc positioning plates 53 is the same as the inner diameter of the cutter, and the blade axial positioning ridge 531 is located in the groove on the inner side of the cutter to limit the axial position of the cutter. Fig.11 - Fig.12 As shown, when cutting, the upper cutter 12 and the lower cutter 13 are fixed in axial position, and the upper cutter supporting mechanism 4 and the lower cutter supporting mechanism 5 are in a tensioned state, so that the axial position of the cutter does not move. When the cutter is moved, the upper cutter supporting mechanism 4 and the lower cutter supporting mechanism 5 are in a retracted state to facilitate the movement of the cutter.

[0087] like Fig.13 - Fig.14As shown, a method for using a longitudinal shearing machine that automatically adjusts the transverse width of a plate strip based on the above is taken as an example of longitudinally shearing a plate strip with a width of 1000mm into three parts of 250mm, 250mm, and 500mm.

[0088] The specific steps are as follows:

[0089] Step S1: Preliminary preparation: calibrate the slitting machine according to processing requirements and input processing parameters, and calculate the required number of cutting knife groups and cutting positions according to the processing parameters.

[0090] Step S11: Using the distance sensor 29 as a reference, establish a position coordinate system along the length direction of the upper mandrel 41 ; The following distance sensor 39 is used as a reference to establish a position coordinate system along the length direction of the lower axis .

[0091] Step S12: Read the number N of strips to be divided into, ; Then the number of cutter groups required is A=N-1=2. The starting storage positions of each set of cutters are fixed in the coordinate system and marked from right to left. and .

[0092] Step S13: The strip is positioned with the second side plate 104 as the reference, and the cutting position in the coordinate system is calculated according to the strip width and the width of each cutting part. and , let i=1.

[0093] Step S14: The upper distance sensor 29 monitors the position of the upper slider 25 The lower distance sensor 39 monitors the position of the lower slider 35 .

[0094] Step S2: positioning the cutter.

[0095] The cutter is moved by the upper screw slide mechanism 2 and the lower screw slide mechanism 3 according to the required cutter group number and cutting position calculated in step S1.

[0096] Step S21: Start the upper servo motor 28, and the upper claw 26 moves to the first upper cutter 12 storage position. Move, start the lower servo motor 38, and the lower claw 36 moves to the first lower cutter 13 storage position move.

[0097] Step S22: Fig.13 As shown, since the width of the upper slider 25 and the lower slider 35 are both 3d, where d is the cutter width, the positioning error coefficient of the first upper cutter 12 is ; Positioning error coefficient of the first lower cutter 13 .

[0098] The upper distance sensor 29 and the lower distance sensor 39 measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and ;

[0099] Step S23: The upper clamping claw 26 first grabs the first upper cutter 12 to the cutting position After the lower claw 36 grabs the first lower cutter 13 to the cutting position Direction of movement;

[0100] Step S24: Positioning error coefficient of the first upper cutter 12 ; Positioning error coefficient of the first lower cutter 13 .

[0101] The upper distance sensor 29 and the lower distance sensor 39 measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and At this time, the upper slider 25 and the lower slider 35 are respectively located in the middle of the first upper cutter 12 and the second lower cutter 13, and enter the next step after they are in place.

[0102] First, the upper clamping claw 26 grabs the first upper cutter 12 and moves it toward the cutting position b1; then, the lower clamping claw 36 grabs the first lower cutter 13 and moves it toward the cutting position b1. Positioning error coefficient of the first upper cutter 12 ; Positioning error coefficient of the first lower cutter 13 , the upper distance sensor 29 and the lower distance sensor 39 measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. , , after the upper slider 25 and the lower slider 35 are in place, proceed to the next step;

[0103] Step S25: Determine whether i is equal to A, that is, whether 1 is equal to 2. If not, set i=i+1, i=2, and go to step S21 to move the next set of cutters. The upper clamping claw 26 and the lower clamping claw 36 move the second upper cutter 12 and the second lower cutter 13 from the storage position to the storage position. Move to crop position At this time, the upper cutter 12 and the lower cutter 13 are all in place, the upper clamping claw 26 and the lower clamping claw 36 are relaxed and moved to the knife storage area, and the upper servo motor 28 and the lower servo motor 38 are turned off;

[0104] Step S3: cutting of strips.

[0105] Step S31: the upper extension and retraction driving hydraulic cylinder 74 and the lower extension and retraction driving hydraulic cylinder 84 are extended, the upper shaft extension and retraction fixing mechanism 7 and the lower shaft extension and retraction fixing mechanism 8 are tightened, so that the axial position of the blade is fixed, and the clutch 62 is closed.

[0106] Step S32: Start the main drive servo motor 61.

[0107] Step S33: the lower core shaft 51 drives the lower cutter 13 to rotate and cut, and at the same time the lower synchronous gear 14 engages with the upper synchronous gear 10 for transmission, and the upper core shaft 41 drives the upper cutter 12 to rotate and cut until the cutting is completed.

[0108] Step S34: turn off the main drive servo motor 61, stop cutting, shrink the upper and lower expansion and contraction drive hydraulic cylinders 74 and 84, disconnect the clutch 62, and retract the upper and lower shaft expansion and contraction fixing mechanisms 7 and 8.

[0109] Step S4: The cutter is retracted.

[0110] Step S41: Start the upper servo motor 28, and the upper clamping claw 26 moves from the upper knife storage area 412 to the cutting position first. Direction of movement;

[0111] The lower servo motor 38 is started, and the lower claw 36 moves from the lower knife storage area 512 to the cutting position. Move in the same direction.

[0112] Step S42: Positioning error coefficient of the second upper cutter 12 ; Positioning error coefficient of the second lower cutter 13 , the upper distance sensor 29 and the lower distance sensor 39 measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and ;

[0113] Step S43: The lower claw 36 first grabs the second lower cutter 13 and moves it to the cutter storage position After the upper claw 26 grabs the second upper cutter 12 to the cutter storage position Move in the same direction.

[0114] Step S44: At this time, the positioning error coefficient of the second upper cutter 12 ; Positioning error coefficient of the second lower cutter 13 , the upper distance sensor 29 and the lower distance sensor 39 measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and ;

[0115] Step S45, determine whether i is equal to 1, if not, set i=i-1, that is, i=1, and go to step S41 to recycle the next group of cutters; all the cutters are returned to their positions, the upper clamping claw 26 is relaxed and moved to the upper knife storage area 412, and the upper servo motor 28 is turned off; the lower clamping claw 36 is relaxed and moved to the lower knife storage area 512, and the lower servo motor 38 is turned off, and the work is completed.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A slitting machine for automatically adjusting the transverse width of a plate strip, comprising a frame, characterized in that: An upper screw slide mechanism, an upper cutter bearing mechanism, a lower cutter bearing mechanism and a lower screw slide mechanism are arranged on the frame from top to bottom in sequence, a cutting drive mechanism is arranged on one side of the lower cutter bearing mechanism, the lower cutter bearing mechanism and the upper cutter bearing mechanism are respectively connected to a lower shaft expansion and contraction fixing mechanism and an upper shaft expansion and contraction fixing mechanism, and a synchronous wheel assembly is arranged between the lower shaft expansion and contraction fixing mechanism and the upper shaft expansion and contraction fixing mechanism; The frame includes a top plate and a bottom plate arranged in parallel, each of the top plate and the bottom plate is provided with a strip-shaped through hole, a first side plate, a second side plate and a third side plate are arranged between the top plate and the bottom plate, and a support frame is arranged at the bottom of the bottom plate; The upper cutter bearing mechanism includes an upper mandrel, which includes a first upper moving area, an upper knife storage area, an upper working area and a second upper moving area in sequence. The circumferential side of the upper working area is connected to a plurality of circumferentially distributed upper arc positioning plates through an upper connecting plate; the first upper moving area is installed on the first side plate by installing a linear bearing; The lower cutter bearing mechanism includes a lower mandrel, which includes a first lower moving area, a lower knife storage area, a lower working area and a second lower moving area in sequence. The circumferential side of the lower working area is connected with a plurality of circumferentially distributed lower arc positioning plates through a lower connecting plate; the first lower moving area is installed on the first side plate by installing a linear bearing; The circumferential sides of the upper knife storage area and the lower knife storage area are respectively provided with an upper knife storage positioning convex strip and a lower knife storage positioning convex strip; The outer sides of the lower arc positioning plate and the upper arc positioning plate are respectively provided with a lower blade axial positioning convex strip and an upper blade axial positioning convex strip; The upper shaft expansion and contraction fixing mechanism includes an upper linear bearing, an upper connecting flange, an upper rolling bearing and an upper expansion and contraction driving hydraulic cylinder. The upper expansion and contraction driving hydraulic cylinder is installed on the third side plate. The upper expansion and contraction driving hydraulic cylinder is connected to the end surface of the second upper moving area through an upper hydraulic rotating joint; the second upper moving area is connected to the upper connecting flange through an upper linear bearing, so that the second upper moving area moves axially in the upper linear bearing; The lower shaft expansion and contraction fixing mechanism includes a lower linear bearing, a lower connecting flange, a lower rolling bearing and a lower expansion and contraction driving hydraulic cylinder. The lower expansion and contraction driving hydraulic cylinder is installed on the third side plate. The lower expansion and contraction driving hydraulic cylinder is connected to the end surface of the second lower moving area through a lower hydraulic rotating joint; the second lower moving area is connected to the lower connecting flange through a lower linear bearing, so that the second lower moving area moves axially in the lower linear bearing; The circumferential surfaces of the upper connecting flange and the lower connecting flange are both two-stage stepped structures, and the two-stage stepped structures include a first-stage circumferential surface and a second-stage circumferential surface. The first-stage circumferential surface in the upper connecting flange is connected with the upper synchronous gear key in the synchronous wheel assembly, and the second-stage circumferential surface in the upper connecting flange is interference-connected with the upper hole on the second side plate through an upper rolling bearing. The first-stage circumferential surface in the lower connecting flange is connected with the lower synchronous gear key in the synchronous wheel assembly, and the second-stage circumferential surface in the lower connecting flange is interference-connected with the lower hole on the second side plate through a lower rolling bearing. Radial guide grooves are provided on the upper connecting flange and the lower connecting flange. The upper arc positioning plate is arranged in the radial guide groove of the upper connecting flange through the upper rotating block, and the lower arc positioning plate is arranged in the radial guide groove of the lower connecting flange through the lower rotating block, so that under the action of the upper expansion and contraction driving hydraulic cylinder and the lower expansion and contraction driving hydraulic cylinder, the upper core shaft and the lower core shaft move axially, and the upper connecting plate and the lower connecting plate respectively drive the upper arc positioning plate and the lower arc positioning plate to move radially along the radial guide grooves.

2. A slitting machine for automatically adjusting the transverse width of a plate strip according to claim 1, characterized in that: The upper lead screw slide mechanism comprises a first upper fixed plate and a second upper fixed plate, the first upper fixed plate and the second upper fixed plate are fixed on the upper surface of the top plate, an upper lead screw and an upper guide rail are arranged between the first upper fixed plate and the second upper fixed plate, an upper slider is arranged on the upper lead screw and the upper guide rail, an upper claw is arranged on the upper slider, one end of the upper lead screw is connected to an upper servo motor through an upper coupling, and the upper servo motor is installed on the upper surface of the top plate; The lower lead screw slide mechanism comprises a first lower fixed plate and a second lower fixed plate, the first lower fixed plate and the second lower fixed plate are fixed on the lower surface of the bottom plate, a lower lead screw and a lower guide rail are arranged between the first lower fixed plate and the second lower fixed plate, a lower slider is arranged on the lower lead screw and the lower guide rail, a lower claw is arranged on the lower slider, one end of the lower lead screw is connected to a lower servo motor through a lower coupling; the lower servo motor is installed on the support frame; An upper distance sensor and a lower distance sensor are respectively mounted on the second upper fixing plate and the second lower fixing plate. The upper distance sensor and the lower distance sensor are respectively arranged opposite to the upper sliding block and the lower sliding block.

3. A slitting machine for automatically adjusting the transverse width of a plate strip according to claim 2, characterized in that: The cutting drive mechanism comprises a main driving servo motor, which is connected to the lower core shaft through a clutch; the main driving servo motor and the clutch are installed on the first side plate.

4. A slitting machine for automatically adjusting the transverse width of a plate strip according to claim 3, characterized in that: The outer diameter formed by the expansion of a plurality of circumferentially distributed upper arc positioning plates and a plurality of circumferentially distributed lower arc positioning plates is the same as the inner diameter of the cutter, and the blade axial positioning convex strip is located in the groove inside the cutter to limit the axial position of the cutter.

5. A method for using a slitting machine capable of automatically adjusting the transverse width of a plate strip according to claim 4, characterized in that: The specific steps are as follows: Step S1: preliminary preparation; Calibrate the slitting machine according to processing needs and input processing parameters, and calculate the required number of cutting knife groups and cutting positions according to the processing parameters; Step S2: positioning the cutter; The cutters are moved by the upper screw slide mechanism and the lower screw slide mechanism according to the required number of cutter groups and the cutting position calculated in step S1; Step S3: cutting of strips; Step S31: the upper extension and retraction driving hydraulic cylinder and the lower extension and retraction driving hydraulic cylinder are extended, the upper shaft extension and retraction fixing mechanism and the lower shaft extension and retraction fixing mechanism are tensioned, so that the axial position of the blade is fixed, and the clutch is closed; Step S32: starting the main drive servo motor; Step S33: the lower mandrel drives the lower cutter to rotate and cut, and at the same time the lower synchronous gear engages with the upper synchronous gear for transmission, and the upper mandrel drives the upper cutter to rotate and cut until the cutting is completed; Step S34: turning off the main drive servo motor, stopping cutting, retracting the upper and lower stretching and retracting drive hydraulic cylinders, disconnecting the clutch, and retracting the upper and lower shaft stretching and retracting fixing mechanisms; Step S4: The cutter is retracted.

6. The method for using the slitting machine for automatically adjusting the transverse width of a plate strip according to claim 5, characterized in that: In step S1, Step S11: Using the distance sensor as a reference, establish a position coordinate system along the length direction of the upper mandrel ; Based on the lower distance sensor, establish the position coordinate system along the length direction of the lower axis ; Step S12: Read the number N of strips to be divided into, ; Then the number of cutter groups required is A=N-1, and the starting storage positions of each group of cutters are fixed in the coordinate system and marked from right to left. , ,... ,... ; Step S13: The strip is positioned with the second side plate as the reference, and the cutting position in the coordinate system is calculated according to the strip width and the width of each cutting part. , ,... ,... , let i=1; Step S14: The upper distance sensor monitors the position of the upper slider ; The lower distance sensor monitors the position of the lower slider ; In step S2; Step S21: Start the upper servo motor, and move the upper claw upward to the cutting knife storage position move; Start the lower servo motor, and the lower claw moves downward to the knife storage position move; Step S22: Positioning error coefficient of upper cutter i ; Where d is the width of the cutter and D is the width of the upper slider; Positioning error coefficient of lower cutter i ; Upper distance sensor and lower distance sensor real-time measurement and The control system will make position corrections according to the feedback data until the value is satisfied. and ; Step S23: The upper clamping claw first grabs the upper cutter and moves it to the cutting position Move in the direction; the lower claw grabs the lower cutter and moves to the cutting position Direction of movement; Step S24: Positioning error coefficient of upper cutter i ; Positioning error coefficient of lower cutter i ; Upper distance sensor and lower distance sensor real-time measurement and The control system will make position corrections according to the feedback data until the value is satisfied. and ; Step S25: determine whether i is equal to A, if not, set i=i+1 and go to step S21; If yes, all the cutters are moved to the cutting position, the upper and lower jaws are relaxed and moved to the knife storage area, and the upper and lower servo motors are turned off; In step S4; Step S41: Start the upper servo motor, and the upper clamping claw moves from the upper knife storage area to the cutting position first. Direction of movement; Start the lower servo motor, and the lower clamping claw moves from the lower knife storage area to the cutting position. Direction of movement, i=A; Step S42: Positioning error coefficient of upper cutter i ; Positioning error coefficient of lower cutter i , the upper distance sensor and the lower distance sensor measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and ; Step S43: The lower claw first grabs the lower cutter and moves it to the cutter storage position Move in the direction; the upper claw grabs the upper cutter and moves it to the cutter storage position Direction of movement; Step S44: Positioning error coefficient of upper cutter i ; Positioning error coefficient of lower cutter i , the upper distance sensor and the lower distance sensor measure in real time and The control system will make position corrections according to the feedback data until the value is satisfied. and ; Step S45, determine whether i is equal to 1, if not, set i=i-1 and go to step S41; If so, all the cutters return to their positions, the upper clamping jaws relax and move to the upper knife storage area, and the upper servo motor is turned off; the lower clamping jaws relax and move to the lower knife storage area, and the lower servo motor is turned off.

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