A method for adjusting the gap between shear blades of cold shearing machine

Abstract

The present invention provides a method for adjusting the gap between the shearing blades of a cold shear, comprising: step one, checking the conditions of the upper and lower shearing blades of the cold shear, wherein the conditions of the upper and lower shearing blades include the upper and lower cutting edges being parallel and the gap meeting the standard, the upper and lower cutting edges being parallel but the gap being too large, the upper and lower cutting edges being parallel but the gap being too small, and the upper and lower cutting edges being skewed; step two, adjusting the parallelism and gap value of the upper and lower cutting edges according to the different conditions of the upper and lower cutting blades using a connecting rod mechanism, wherein a universal hinge mechanism pushes the connecting rod mechanism to move until the upper and lower cutting edges are parallel and the gap meeting the standard; step three, fixing the universal hinge mechanism using a fixing assembly when the upper and lower cutting edges are parallel and the gap meeting the standard. The present invention uses a connecting rod mechanism and a universal hinge mechanism to adjust the parallelism of the upper and lower cutting edges and the gap value between the upper and lower cutting edges, and after the upper and lower cutting edges are adjusted to the ideal value, a fixing assembly is used to fix the connecting rod mechanism and the universal hinge mechanism. The method for adjusting the gap between the shearing blades of the cold shear of the present invention is easy to use, quick to adjust, and suitable for adjusting the upper and lower cutting edges in different states.

Description

Technical Field

[0001] The invention relates to the field of cold shear equipment, in particular to a method for adjusting the shearing blade gap of a cold shear. Background Art

[0002] Currently, cutting lengths for steel section rolling mills both domestically and internationally is accomplished by cold shears. Because the appearance quality of the sheared section is crucial, the upper and lower cutting edges of the cold shear must be parallel, with a clearance of approximately 0.2mm. Considering the complex causes of deviations due to the cumulative errors of all parts during manufacturing, as well as the stringent conditions for proper adjustment and use of the cold shear, ensuring that the upper and lower cutting edges are parallel and that the clearance meets the standards is a key and challenging aspect of the cold shear installation process.

[0003] Existing cold shears typically achieve standard parallelism and clearance between the upper and lower cutting edges by locally adjusting shims at the manufacturer. Over time, due to normal wear of the upper and lower cutting edges or replacement of non-original shear blade holders, the original parallelism and clearance between the upper and lower cutting edges can no longer be maintained. In particular, interference between the upper and lower cutting edges or variations in the clearance between the upper and lower cutting edges can cause shearing of steel sections, resulting in head slippage and bending, cross-section distortion and accumulation, and severe flash and burrs. This impacts the quality rate of steel products and creates sales difficulties for manufacturers.

[0004] In view of this, it is necessary to develop a cold shear blade gap adjustment method to adjust the parallelism and gap value of the upper and lower cutting edges of the cold shear in real time. Summary of the Invention

[0005] The present invention provides a method for adjusting the shearing blade gap of a cold shear machine, which uses a connecting rod mechanism and a universal hinge mechanism to adjust the parallelism of the upper and lower cutting edges and the gap value between the upper and lower cutting edges. After the upper and lower cutting edges are adjusted to ideal values, a fixing component is used to fix the connecting rod mechanism and the universal hinge mechanism, thereby maintaining the ideal values ​​of the upper and lower cutting edges constant. The method for adjusting the shearing blade gap of a cold shear machine of the present invention is easy to use, fast to adjust, and is suitable for adjusting the upper and lower cutting edges in different states.

[0006] The technical solutions for achieving the purpose of the present invention are as follows:

[0007] A method for adjusting the shearing gap of a cold shearing machine, comprising:

[0008] Step 1: Check the upper and lower cutting blades of the cold shear machine. The upper and lower cutting blade conditions include: the upper and lower cutting edges are parallel and the gap meets the standard; the upper and lower cutting edges are parallel but the gap is too large; the upper and lower cutting edges are parallel but the gap is too small; and the upper and lower cutting edges are skewed;

[0009] Step 2: According to different conditions of the upper and lower shear blades, a connecting rod mechanism is used to adjust the parallelism and clearance of the upper and lower cutting edges. The universal hinge mechanism drives the connecting rod mechanism to move until the upper and lower cutting edges are parallel and the clearance meets the standard;

[0010] Step 3: When the upper and lower cutting edges are parallel and the gap meets the requirements, use a fixing assembly to fix the universal hinge mechanism.

[0011] In a possible implementation, a connecting rod mechanism is used to adjust the parallelism and clearance of the upper and lower cutting edges according to different upper and lower cutting blade conditions, including:

[0012] If the upper and lower cutting edges are parallel but the gap is too large, the two parallel universal joints are rotated in the same direction until the gap between the upper and lower cutting edges meets the standard. At this time, the rotation angles of the two universal joints are the same.

[0013] If the upper and lower cutting edges are parallel but the gap is too small, rotate the two parallel universal joints counterclockwise at the same time until the gap between the upper and lower cutting edges meets the standard. At this time, the rotation angles of the two universal joints are the same.

[0014] If the upper and lower cutting edges are skewed, rotate the left universal hinge mechanism or the right universal hinge mechanism alone, or rotate the left universal hinge mechanism and the right universal hinge mechanism in reverse.

[0015] In a possible implementation, if the upper and lower cutting edges are skewed, rotating the left universal joint mechanism or the right universal joint mechanism alone, or rotating the left universal joint mechanism and the right universal joint mechanism in reverse, includes:

[0016] If the upper and lower cutting edges are skewed and the clearance between the left and right cutting edges is smaller than that between the right and right cutting edges, rotate the right universal joint clockwise until the clearance between the right and right cutting edges meets the standard, and rotate the left universal joint counterclockwise until the clearance between the left and right cutting edges meets the standard.

[0017] If the upper and lower cutting edges are skewed and the clearance between the left and right cutting edges is greater than that between the right and right cutting edges, rotate the right universal joint counterclockwise until the clearance between the right and right cutting edges meets the standard, and rotate the left universal joint clockwise until the clearance between the left and right cutting edges meets the standard.

[0018] If the upper and lower cutting edges are skewed, the upper and lower cutting edge clearance on the left side meets the standard but the upper and lower cutting edge clearance on the right side is too large, rotate the right universal joint mechanism clockwise until the upper and lower cutting edge clearance on the right side meets the standard and the left universal joint mechanism remains stationary;

[0019] If the upper and lower cutting edges are skewed, the upper and lower cutting edge clearances on the left side meet the standards but the upper and lower cutting edge clearances on the right side are too small, rotate the right universal joint counterclockwise until the upper and lower cutting edge clearances on the right side meet the standards and the left universal joint remains stationary.

[0020] If the upper and lower cutting edges are skewed, the clearance between the left and right cutting edges is too large, but the clearance between the left and right cutting edges meets the standard, rotate the left universal joint mechanism clockwise until the clearance between the left and right cutting edges meets the standard and the right universal joint mechanism remains stationary.

[0021] If the upper and lower cutting edges are skewed, the clearance between the upper and lower cutting edges on the left is too small but the clearance between the upper and lower cutting edges on the right meets the standard, rotate the left universal joint mechanism counterclockwise until the clearance between the upper and lower cutting edges on the left meets the standard and the right universal joint mechanism remains stationary.

[0022] In a possible implementation, a connecting rod mechanism is used to adjust the parallelism and clearance of the upper and lower cutting edges according to different upper and lower cutting blade conditions, including:

[0023] When the two parallel sets of universal joint mechanisms rotate in the same direction, the two sets of universal joint mechanisms push the connecting rod mechanism to move downward;

[0024] When the two parallel sets of universal hinge mechanisms rotate counterclockwise at the same time, the two sets of universal hinge mechanisms push the connecting rod mechanism to move upward;

[0025] When the left universal joint mechanism is rotated clockwise alone, the left universal joint mechanism pushes the connecting rod mechanism downward;

[0026] When the left universal joint mechanism is rotated counterclockwise alone, the left universal joint mechanism pushes the connecting rod mechanism upward;

[0027] When the right universal joint mechanism is rotated clockwise alone, the right universal joint mechanism pushes the connecting rod mechanism downward;

[0028] When the right universal joint mechanism is rotated counterclockwise alone, the right universal joint mechanism pushes the connecting rod mechanism to move upward.

[0029] In one possible implementation, when the upper and lower cutting edges are parallel and the clearance meets the requirements, a fixing assembly is used to fix the universal hinge mechanism, including:

[0030] A bushing positioning universal hinge mechanism installed on the lower frame;

[0031] The fixing assembly fixed on the universal hinge mechanism, the bushing and the slide plate fixedly connects the universal hinge mechanism and the connecting rod mechanism.

[0032] In a possible implementation, the connecting rod mechanism includes a slide plate and a lower shear blade seat, wherein the slide plate is connected to the lower shear blade seat; the slide plate drives the lower shear blade seat and the lower cutting edge to move.

[0033] In one possible implementation, the universal hinge mechanism includes an eccentric shaft and a supporting member, the eccentric shaft is installed inside a bushing of the lower frame, the supporting member is provided on the eccentric shaft, an arc-shaped channel is opened on the slide, and the supporting member is located in the arc-shaped channel;

[0034] The eccentric shaft and the abutting member rotate synchronously to drive the skateboard to move.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The present invention uses a connecting rod mechanism and a universal hinge mechanism to adjust the parallelism of the upper and lower cutting edges and the gap value between the upper and lower cutting edges. After the upper and lower cutting edges are adjusted to the ideal values, a fixing component is used to fix the connecting rod mechanism and the universal hinge mechanism, thereby maintaining the ideal values ​​of the upper and lower cutting edges constant. The cold shearing machine shearing blade gap adjustment method of the present invention is easy to use, fast to adjust, and is suitable for adjusting the upper and lower cutting edges in different states. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A flow chart of a method for adjusting the shearing gap of a cold shear provided by the present invention;

[0038] Figure 2 A schematic structural diagram of a cold shear blade gap adjustment device corresponding to a cold shear blade gap adjustment method provided by the present invention;

[0039] Figure 3 A cross-sectional schematic diagram of a cold shear blade gap adjustment method corresponding to a cold shear blade gap adjustment device provided by the present invention;

[0040] Figure 4 A schematic diagram of a cold shear blade gap adjustment method provided by the present invention, wherein the shear blade gap adjustment mechanism of the cold shear blade gap adjustment device is installed on the lower shear blade seat;

[0041] Figure 5 for Figures 2 to 4 Schematic diagram of the middle slide structure;

[0042] Figure 6 for Figure 5 Middle AA section view;

[0043] Figure 7 This is a schematic diagram of the structure of the eccentric shaft of the cold shear blade gap adjustment device;

[0044] Figure 8 This is a schematic diagram of the bushing structure of the shear blade gap adjustment device of the cold shear;

[0045] Figure 9 This is a schematic diagram of the upper and lower cutting edges being parallel and the clearance meeting the standard;

[0046] Figure 10 Schematic diagram of the upper and lower cutting edges being parallel but with too large a gap;

[0047] Figure 11 Schematic diagram of the upper and lower cutting edges being parallel but with too small a gap;

[0048] Figure 12 This is a schematic diagram showing the upper and lower cutting edges being skewed;

[0049] In the figure, 1-upper tool holder slide; 2-upper locking cylinder device; 3-upper shear blade seat; 4-lower shear blade seat; 5-slide plate; 6-eccentric shaft; 7-bushing; 8-handle fitting; 9-frame body; 10-fixing part; 11-lower locking cylinder device; 12-slag baffle; 13-supporting part; 14-mounting hole; 15-embedded cavity. DETAILED DESCRIPTION

[0050] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0051] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying 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 invention.

[0052] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0053] The terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0054] See also Figure 1 The embodiment of the present invention provides a method for adjusting the shearing gap of a cold shear, comprising:

[0055] Step 1: Check the upper and lower cutting blades of the cold shear machine. The upper and lower cutting blade conditions include: the upper and lower cutting edges are parallel and the gap meets the standard, the upper and lower cutting edges are parallel but the gap is too large, the upper and lower cutting edges are parallel but the gap is too small, and the upper and lower cutting edges are skewed;

[0056] Step 2: Use the connecting rod mechanism to adjust the parallelism and clearance of the upper and lower cutting edges according to different upper and lower cutting blade conditions. The universal hinge mechanism drives the connecting rod mechanism to move until the upper and lower cutting edges are parallel and the clearance meets the standard.

[0057] Step 3: When the upper and lower cutting edges are parallel and the gap meets the requirements, use a fixing assembly to fix the universal hinge mechanism.

[0058] See also Figures 9 to 12 Based on the above scheme, a connecting rod mechanism is used to adjust the parallelism and gap value of the upper and lower cutting edges according to different upper and lower shear blade conditions, including: if the upper and lower cutting edges are parallel but the gap is too large, the two sets of parallel universal hinge mechanisms are rotated in the same direction until the gap between the upper and lower cutting edges meets the standard, and at this time the rotation angles of the two sets of universal hinge mechanisms are the same; if the upper and lower cutting edges are parallel but the gap is too small, the two sets of parallel universal hinge mechanisms are rotated counterclockwise at the same time until the gap between the upper and lower cutting edges meets the standard, and at this time the rotation angles of the two sets of universal hinge mechanisms are the same; if the upper and lower cutting edges are skewed, the left universal hinge mechanism or the right universal hinge mechanism is rotated alone, or the left universal hinge mechanism and the right universal hinge mechanism are rotated in reverse.

[0059] See also Figures 9 to 12 , based on the above scheme, if the upper and lower cutting edges are skewed, rotate the left universal joint mechanism or the right universal joint mechanism alone, or rotate the left universal joint mechanism and the right universal joint mechanism in reverse, including: if the upper and lower cutting edges are skewed and the gap value of the upper and lower cutting edges on the left is smaller than the gap value of the upper and lower cutting edges on the right, rotate the right universal joint mechanism clockwise until the gap of the upper and lower cutting edges on the right meets the standard, and rotate the left universal joint mechanism counterclockwise until the gap of the upper and lower cutting edges on the left meets the standard; if the upper and lower cutting edges are skewed and the gap value of the upper and lower cutting edges on the left is larger than the gap value of the upper and lower cutting edges on the right, rotate the right universal joint mechanism counterclockwise until the gap of the upper and lower cutting edges on the right meets the standard, and rotate the left universal joint mechanism clockwise until the gap of the upper and lower cutting edges on the left meets the standard; if the upper and lower cutting edges are skewed, the gap value of the upper and lower cutting edges on the left meets the standard but the gap value of the upper and lower cutting edges on the right meets the standard If the gap value is too large, rotate the right universal joint mechanism clockwise until the gap between the upper and lower blades on the right side meets the standard, and the left universal joint mechanism remains stationary; if the upper and lower blades are skewed, the gap between the upper and lower blades on the left side meets the standard but the gap between the upper and lower blades on the right side is too small, rotate the right universal joint mechanism counterclockwise until the gap between the upper and lower blades on the right side meets the standard, and the left universal joint mechanism remains stationary; if the upper and lower blades are skewed, the gap between the upper and lower blades on the left side is too large but the gap between the upper and lower blades on the right side meets the standard, rotate the left universal joint mechanism clockwise until the gap between the upper and lower blades on the left side meets the standard, and the right universal joint mechanism remains stationary; if the upper and lower blades are skewed, the gap between the upper and lower blades on the left side is too small but the gap between the upper and lower blades on the right side meets the standard, rotate the left universal joint mechanism counterclockwise until the gap between the upper and lower blades on the left side meets the standard, and the right universal joint mechanism remains stationary.

[0060] See also Figures 9 to 12Based on the above scheme, a connecting rod mechanism is used to adjust the parallelism and clearance value of the upper and lower cutting edges according to different upper and lower shear blade conditions, including: when two sets of parallel universal hinge mechanisms rotate in the same direction, the two sets of universal hinge mechanisms push the connecting rod mechanism downward; when the two sets of parallel universal hinge mechanisms rotate counterclockwise at the same time, the two sets of universal hinge mechanisms push the connecting rod mechanism upward; when the left universal hinge mechanism is rotated clockwise alone, the left universal hinge mechanism pushes the connecting rod mechanism downward; when the left universal hinge mechanism is rotated counterclockwise alone, the left universal hinge mechanism pushes the connecting rod mechanism upward; when the right universal hinge mechanism is rotated clockwise alone, the right universal hinge mechanism pushes the connecting rod mechanism downward; when the right universal hinge mechanism is rotated counterclockwise alone, the right universal hinge mechanism pushes the connecting rod mechanism upward.

[0061] Based on the above scheme, when the upper and lower cutting edges are parallel and the gap meets the standard, a fixing component is used to fix the universal hinge mechanism, including: a bushing installed on the lower frame to position the universal hinge mechanism; a fixing component fixed on the universal hinge mechanism, the bushing and the slide to fix the universal hinge mechanism and the connecting rod mechanism.

[0062] Based on the above solution, the connecting rod mechanism includes a slide plate and a lower shear blade seat, and the slide plate is connected to the lower shear blade seat; the slide plate drives the lower shear blade seat and the lower cutting edge to move.

[0063] Based on the above scheme, the universal hinge mechanism includes an eccentric shaft and a supporting member. The eccentric shaft is installed inside the bushing of the lower frame, and the supporting member is arranged on the eccentric shaft. An arc-shaped channel is opened on the skateboard, and the supporting member is located in the arc-shaped channel; the eccentric shaft and the supporting member rotate synchronously to drive the skateboard to move.

[0064] See also Figure 2 、 Figure 3 and Figure 4 An embodiment of the present invention provides a shearing blade gap adjustment device for a cold shear machine, the cold shear machine comprising: a lower frame, a lower shearing blade seat 4 installed on the lower frame, and a lower shearing blade installed on the lower shearing blade seat 4; the shearing blade gap adjustment device for the cold shear machine comprises: a slide plate 5 arranged below the lower shearing blade seat 4, and at least two groups of shearing blade gap adjustment mechanisms for pushing the slide plate 5 and the lower shearing blade seat 4 to move, and the multiple groups of shearing blade gap adjustment mechanisms are arranged in parallel; the shearing blade gap adjustment mechanism is an eccentric mechanism, the shearing blade gap adjustment mechanism rotates to push the slide plate 5 and the lower shearing blade seat 4 to move in the direction of the eccentric amount of the eccentric mechanism, and the shearing blade gap adjustment mechanism is fixedly connected to the lower frame to realize the positioning of the shearing blade gap adjustment mechanism.

[0065] See also Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8The preferred shearing blade gap adjustment mechanism includes: a bushing 7 fixed to the lower frame, an eccentric shaft 6 installed inside the bushing 7, a supporting member 13 provided on the eccentric shaft 6, and a fixing component that fixedly connects the eccentric shaft 6, the bushing 7 and the slide 5; an arc-shaped channel is provided on the slide 5, the supporting member 13 is located inside the arc-shaped channel, and the eccentric shaft 6 and the supporting member 13 rotate synchronously to push the slide 5 to move.

[0066] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 Preferably, the eccentric shaft 6 includes a lower shaft section and an upper shaft section, the lower shaft section is located below the upper shaft section, and the lower shaft section and the upper shaft section are fixedly connected; the supporting member 13 is located in the upper shaft section, and a mounting hole 14 coaxial with the bushing 7 is opened on the slide plate 5, and an arc-shaped channel is opened in the hole wall of the mounting hole 14, the upper shaft section is located in the mounting hole 14, and the upper shaft section and the mounting hole 14 are clearance-fitted, the supporting member 13 is located in the arc-shaped channel, the lower shaft section cooperates with the bushing 7, and the bushing 7 rotates with the lower shaft section.

[0067] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 Preferably, a slide plate 5 mounting position is provided on the lower frame, and a lower shear blade seat 4 mounting position is provided on the slide plate 5; the slide plate 5 mounting position is located below the lower shear blade seat 4, and the peripheral wall of the slide plate 5 mounting position and the outer wall of the slide plate 5 have a gap, and the gap value matches the eccentricity of the eccentric shaft 6 and the size of the supporting member 13; the lower shear blade seat 4 mounting position is installed with the lower shear blade seat 4.

[0068] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 Preferably, a slag blocking plate 12 is provided on the lower shear blade seat 4, and the slag blocking plate 12 spans over the gap and extends to the edge of the lower frame.

[0069] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8, preferably, the eccentric shaft 6 also includes an eccentric cap, which is located above the upper shaft segment and fixedly connected to the upper surface of the upper shaft segment; the eccentric cap, the upper shaft segment and the lower shaft segment are coaxially arranged, so that the eccentric cap, the upper shaft segment and the lower shaft segment have a first axis; a plurality of fixing holes are provided on the eccentric cap, and the plurality of fixing holes are evenly distributed 360° around the second axis; a plurality of mounting holes 14 are provided on the skateboard 5, and the plurality of mounting holes 14 are evenly distributed 360° around the second axis, the number of mounting holes 14 is the same as the number of fixing holes, and the fixing holes and the mounting holes 14 are coaxial and have the same diameter; the plurality of fixing holes and the plurality of mounting holes 14 are fixedly connected by a fixing assembly.

[0070] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 Preferably, the slide plate 5 is further provided with an embedding cavity 15 for embedding the eccentric cap; a plurality of mounting holes 14 are located in the embedding cavity 15 and extend from the bottom of the embedding cavity 15 to the bottom surface of the slide plate 5.

[0071] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 Preferably, the fixing assembly includes a plurality of fixing parts 10, which pass through the fixing holes and are fixedly connected to the mounting holes 14; the number of fixing parts 10 in the same shear blade gap adjustment mechanism is less than the number of fixing holes, and the number of fixing parts 10 in the same shear blade gap adjustment mechanism is less than the number of mounting holes 14.

[0072] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The embodiment of the present invention adopts a parallel arrangement of shear blade gap adjustment mechanisms, which drives the slide plate 5 and the lower cutting edge to move relative to the upper cutting edge through the rotation angle of the shear blade gap adjustment mechanism until the lower cutting edge and the upper cutting edge are parallel and the spacing meets the standard. The shear blade gap adjustment mechanism is fixed to the lower frame. The shear blade gap adjustment device of the cold shear machine of the present invention meets all working conditions where the upper and lower cutting edges of the cold shear machine are not parallel or the gap value increases or decreases, which is convenient for the maintenance of the cold shear machine, and the cold shear machine has a higher yield rate for shearing steel sections. The embodiment of the present invention uses a connecting rod mechanism and a universal hinge mechanism to adjust the parallelism of the upper and lower cutting edges and the gap value between the upper and lower cutting edges. After the upper and lower cutting edges are adjusted to the ideal value, a fixing assembly is used to fix the connecting rod mechanism and the universal hinge mechanism, thereby maintaining the ideal value of the upper and lower cutting edges constant. The shear blade gap adjustment method of the cold shear machine of the present invention is easy to use, quick to adjust, and suitable for adjusting the upper and lower cutting edges in different states.

[0073] In practical applications, please continue to refer to Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The embodiment of the present invention adopts two sets of arc channels symmetrically arranged on the slide plate 5, which are fixed to the rotary pin hole sleeve of the lower frame body 9 through two sets of eccentric crankshafts. The double crankshafts adjust the continuous rotation angle of the eccentric flange respectively, and the eccentric shafts 6 on both sides drive the slide plate 5 installed on the lower shear blade seat 4 to move relative to the fixed flat blade surface of the shearing machine to make the required fitting amount. After the upper blade reference surface is fitted, the flange bolts of the eccentric shafts 6 on both sides can be fixed. The embodiment of the present invention can quickly realize the universal displacement of the transition slide of the clamped lower knife seat forward, backward, left and right and make relative angular rotation, and can meet the needs of all standard size knife seat groups for direct online use without repair, so as to achieve the requirements of tracking the upper blade surface to fit and make all-round fine adjustments and firmly position it on the machine body for use. It utilizes the change of the original model to fix the non-adjustable replaceable protective transition slide 5 in the shear body with a long flat key and a bolt, and designs a horizontal arrangement of machined and embedded positioning bushings 7 on both sides of the base of the shear body blade slide 5, with an eccentric shaft 6 with an eccentricity sufficient to cover the upper and lower blade surface deviation adjustment values, and a positioning bushing 7 as a fixed fulcrum, and the eccentric shaft 6 pins and the body are densely distributed at unequal angles along the center of the bushing 7. The slide plate 5 is connected by the bolts with holes, and the phase angle of the eccentric shaft 6 can be continuously adjusted by rotating in any direction clockwise or counterclockwise. The eccentric shaft 6 is set and has a large gap adjustment movement space reserved around the slide plate 5 and the through hole. The large cylindrical surfaces of the eccentric shaft 6 on both sides of the lower blade transition slide plate 5 and the equal-diameter long holes of the slide plate 5 are combined into a crank-connecting rod universal hinge adjustment gap mechanism, which can perform planar universal motion relative to the frame body 9. At this time, the positioning of the lower blade seat slide plate 5 of the shearing machine is upgraded from the original long flat key positioning and non-adjustable fixed connection scheme to the two eccentric support positioning points of the lower blade dovetail seat with selective rotation drive. The slide plate 5 and the lower blade tool holder on it can be rotated arbitrarily and can track the displacement of the upper blade seat and the blade surface to adjust and control its state and gap locking and fixing scheme.

[0074] The embodiment of the present invention has completely changed the outdated scheme that the current conventional shearing machine knife seat system is not equipped with the gap and state between the upper and lower blades cannot be adjusted. The new scheme fully studies the unreasonableness of the original shearing adjustment setting, analyzes the stress state of the shearing machine equipment during shearing action and the factors that the accuracy of the upper knife seat mating surface cannot be restored after normal wear. The influence of the dimensional deviation between the newly replaced blade group and the original replaced parts makes it impossible to achieve the conventional indiscriminate and barrier-free rapid replacement of spare parts in this part of the shearing machine. This technology is based on the characteristic that the configured new blade group can be quickly measured and read out the relative deviation of the cutting edge surface after trial installation and locking on the machine, and directly performs symptomatic adjustment online without rework. A new scheme is found that can meet the universal and indiscriminate interchange of spare parts and can track the upper blade surface to adjust the displacement and fit of the lower blade seat, control the precise adjustment and locking of its blade gap, and fix the lower blade seat.

[0075] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 A cold shearing machine shearing gap adjustment device according to an embodiment of the present invention adopts a double eccentric support positioning and adjustment structure. The relative phase angle is adjusted by dislocation, and the mounting base surface of the protective slide plate 5 of the lower blade seat realizes universal motion on the plane. After it is in place, the closing bolts are tightened (diagonal connection is possible within a range of 360 degrees), and then the closing bolts of the slide plate 5 are tightened to realize the function of accurately adjusting the shearing blade gap. The core of the embodiment of the present invention is to make the protective slide plate 5 of the replaceable lower blade seat of the shearing machine, and to set the machined and embedded positioning bushings 7 on both sides of the blade base of the shearing machine body as the rotation fulcrum of the eccentric shaft 6. Large gaps are reserved around the slide plate 5 and in the through holes on it for its adjustment and movement space. The phase angle of the eccentric shaft 6 is adjusted by continuous rotation in any direction of clockwise or counterclockwise to match and correct the position deviation between the current shearing blades, forming a double crankshaft eccentric hinge connecting rod mechanism that can move in a plane in a universal manner. The double crankshaft eccentricity is set to be sufficient to cover the conventional deviation adjustment value of the upper and lower blade surfaces. The slide plate 5 is fastened by bolts on the eccentric shaft 6 pin and the body along the center diameter of the bushing 7. The large cylindrical surfaces of the eccentric shafts 6 on both sides of the slide plate 5 and the equal-diameter long holes on the slide plate 5 are combined to form a crank-connecting rod adjustment gap mechanism dynamic matching displacement system. The mechanism can make the slide plate 5 that carries and fixes the lower blade seat perform plane universal motion relative to the frame body 9, which completely changes the original scheme of the lower blade seat slide plate 5 of the shearing machine being positioned and fixed on the body by a long flat key and cannot be adjusted. The embodiment of the present invention introduces a slider 5 formed by double eccentric support positioning and a lower blade seat thereon, which can rotate arbitrarily and can track the deviation displacement of the upper blade seat and the blade surface, adjust and control the gap and lock and fix it. The slider 5 and the lower blade seat thereon can be rotated arbitrarily and can track the displacement adjustment of the upper blade seat and the blade surface. The adjustment and locking technology that can accurately control the parallelism and gap values ​​between the shearing blades is an essential configuration for upgrading the key practical performance of new shearing machines in the future.

[0076] Please continue reading Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8, a cold shear blade gap adjustment device of an embodiment of the present invention has the following working principle: first, confirm that the lower blade seat is assembled according to the action principle of the cold shear blade gap adjustment mechanism; when the phase angle of the eccentric shaft 6 is in an ideal state, the upper and lower blade seats are fixed and locked on the machine for trial installation, and the specific gap values ​​of the upper and lower blade surfaces are measured and recorded. If there is still deviation that needs to be adjusted, loosen the lower blade locking cylinder group, pull out the lower blade seat assembly, loosen and remove the blade slide and the eccentric shaft 6 flange on the bolts, and adjust the phase angles of the eccentric shafts 6 on both sides as appropriate according to the positional relationship of the measured data. After the spatial deviation of the lower blade slide is corrected, reinstall and tighten the bolts of the loosened slide and the crankshaft in front, install the lower blade seat and lock the cylinder, and check that the adjustment effect value is correct, and the correction and gap adjustment work between the shear blades can be completed.

[0077] The embodiment of the present invention provides a cold shearing machine blade gap adjustment device that improves and optimizes the configuration of the original machine model. While the configuration positions of the main components in the original machine remain unchanged, a new solution is added that can meet the requirements of spare parts without distinction and can fit and track the upper blade surface to adjust the lower blade seat displacement angle, control its blade gap, and accurately adjust and lock the lower blade seat, thereby changing the original model's non-adjustable solution into an arbitrary universal adjustment solution. The base surface of the lower blade base slide of the new solution can unconditionally track and fit close to the base surface of the upper blade surface according to the optimal working state of the upper blade, so that the shear blades are absolutely parallel and the gap can be flexibly and accurately controlled. The two sets of eccentric crankshaft steps and the long holes of the slide plate are arranged in a horizontal plane, and the bolts are connected vertically. The entire double crank connecting rod hinge mechanism formed is strong and reliable, easy to adjust, the adjustment space is exposed and open, the structure is reasonable and simple, and it is convenient for on-site maintenance, meeting the requirements of on-site spare parts replacement of shearing machines and quickly resuming production. Due to the working conditions and shearing requirements of the cold shear machine, the shear mechanism is severely worn, and the equipment needs to be adjusted and restored to the wedge gap every once in a while. The original upper and lower blade gap values ​​have changed, and without adjustment, it can no longer meet the equipment use requirements. The embodiment of the present invention can quickly adjust and correct the deviation caused by wear, and can ensure that the accuracy of other parts of the original equipment is not reduced and the performance is not damaged at any time. At the same time, since the original machine does not need to use the outer contour of the tool holder to repair to meet the parallel and clearance values ​​between the shear blades when leaving the factory, it can ensure that the dovetail of the upper and lower blade seats and the installation shear blade interface size are consistent with the original drawing and can be used universally. In theory, it meets the ideal close contact between the shear blade seat and the mating surface design state, avoiding the original repair and adjustment method of adjusting the dovetail and installation interface outer contour of the upper and lower blade seats. The uniformly configured spare parts are interchangeable and form the best fixed shear force conditions, ensuring the stability of the shearing performance and the best cross-section quality. It can also track the upper blade floating and the lower blade slide to quickly and correctly reset the work after the external conditions of the upper blade are adjusted after wear. This adjustment operation characteristic maintains a good working contact state of the shear blade, avoids uneven and abnormal blade wear, and extends the sharpness and service life of the shear blade. Since the shearing blade gap adjustment device for a cold shearing machine according to the embodiment of the present invention uses non-destructive trimming and adjustment of the main shearing wearing parts before leaving the factory, it has standardized spare parts production and does not require pairing for repair, thus reducing spare parts inventory. The shearing blade gap adjustment device for a cold shearing machine according to the embodiment of the present invention has a simple and durable component structure, reliable adjustment and fixation, and can operate continuously for a long time without maintenance, which can meet the high-efficiency production of the shearing machine.

[0078] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0080] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for adjusting the shear gap of a cold shear, characterized in that: include: Step 1: Check the upper and lower cutting blades of the cold shear machine. The upper and lower cutting blade conditions include: the upper and lower cutting edges are parallel and the gap meets the standard; the upper and lower cutting edges are parallel but the gap is too large; the upper and lower cutting edges are parallel but the gap is too small; and the upper and lower cutting edges are skewed; Step 2: Use the connecting rod mechanism to adjust the parallelism and gap value of the upper and lower cutting edges according to different conditions of the upper and lower cutting blades. If the upper and lower cutting edges are parallel but the gap is too small, rotate the two parallel universal hinge mechanisms counterclockwise at the same time until the gap between the upper and lower cutting edges meets the standard. At this time, the rotation angles of the two universal hinge mechanisms are the same; if the upper and lower cutting edges are skewed, rotate the left universal hinge mechanism or the right universal hinge mechanism alone; Step 3: When the upper and lower cutting edges are parallel and the clearance meets the standard, use a fixing assembly to fix the universal hinge mechanism; The connecting rod mechanism includes a slide plate and a lower shear blade seat, wherein the slide plate is connected to the lower shear blade seat; the slide plate drives the lower shear blade seat and the lower cutting edge to move; The universal hinge mechanism includes an eccentric shaft and a supporting member. The eccentric shaft is installed inside the bushing of the lower frame, and the supporting member is arranged on the eccentric shaft. An arc-shaped channel is opened on the skateboard, and the supporting member is located in the arc-shaped channel. The eccentric shaft and the supporting member rotate synchronously to drive the skateboard to move.

2. The method for adjusting the shearing blade gap of a cold shear according to claim 1, characterized in that: If the upper and lower cutting edges are skewed, rotate the left or right universal joint mechanism separately, including: If the upper and lower cutting edges are skewed, the upper and lower cutting edge clearance on the left side meets the standard but the upper and lower cutting edge clearance on the right side is too large, rotate the right universal joint mechanism clockwise until the upper and lower cutting edge clearance on the right side meets the standard and the left universal joint mechanism remains stationary; If the upper and lower cutting edges are skewed, the upper and lower cutting edge clearances on the left side meet the standards but the upper and lower cutting edge clearances on the right side are too small, rotate the right universal joint counterclockwise until the upper and lower cutting edge clearances on the right side meet the standards and the left universal joint remains stationary. If the upper and lower cutting edges are skewed, the clearance between the left and right cutting edges is too large, but the clearance between the left and right cutting edges meets the standard, rotate the left universal joint mechanism clockwise until the clearance between the left and right cutting edges meets the standard and the right universal joint mechanism remains stationary. If the upper and lower cutting edges are skewed, the clearance between the upper and lower cutting edges on the left is too small but the clearance between the upper and lower cutting edges on the right meets the standard, rotate the left universal joint mechanism counterclockwise until the clearance between the upper and lower cutting edges on the left meets the standard and the right universal joint mechanism remains stationary.

3. The method for adjusting the shearing gap of a cold shear according to claim 2, characterized in that: According to different upper and lower shear blade conditions, a connecting rod mechanism is used to adjust the parallelism and clearance value of the upper and lower cutting edges, including: When the two parallel sets of universal hinge mechanisms rotate counterclockwise at the same time, the two sets of universal hinge mechanisms push the connecting rod mechanism to move upward; When the left universal joint mechanism is rotated clockwise alone, the left universal joint mechanism pushes the connecting rod mechanism downward; When the left universal joint mechanism is rotated counterclockwise alone, the left universal joint mechanism pushes the connecting rod mechanism upward; When the right universal joint mechanism is rotated clockwise alone, the right universal joint mechanism pushes the connecting rod mechanism downward; When the right universal joint mechanism is rotated counterclockwise alone, the right universal joint mechanism pushes the connecting rod mechanism to move upward.

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