EVO wire cutting machine grinding wheel dressing device and dressing method

Abstract

The present invention relates to the technical field of tobacco production tools, and specifically discloses an EVO cutter grinding wheel dressing device, comprising a diamond rod and an adjustable fixed support; a diamond is fixed to the upper end of the diamond rod; the lower end of the diamond rod is provided with a beveled bottom surface; a diamond rod insertion hole is vertically opened on the upper part of the adjustable fixed support; an adjustment hole is also horizontally opened on the lower part of the diamond rod insertion hole; a horizontal threaded hole is opened on one side of the adjustment hole, and the horizontal threaded hole connects the adjustment hole and the outside of the adjustable fixed support; an adjustment block is movably provided in the adjustment hole, and the top surface of the adjustment block is provided with a beveled top surface corresponding to the beveled bottom surface; an adjustment screw is distributed in the horizontal threaded hole, and a push rod is provided at the front end of the adjustment screw, and the push rod can push the adjustment block to move. The use of the present invention has the advantages of convenient operation, high correction accuracy, and significantly improved work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette processing, and in particular to an EVO cutter grinding wheel dressing device and a dressing method. Background Art

[0002] The shredder is the most crucial piece of equipment in the tobacco production line, its mission being to cut tobacco leaves into qualified shredded tobacco. The shredding operation is performed by a blade, which is automatically fed. The grinding wheel automatically feeds back and forth to maintain the blade's sharpness. This process also controls blade elongation, maintains a constant cutting diameter, and ensures a consistent gap between the blade and the cutter gate, guaranteeing consistent cut quality. The grinding wheel is simultaneously diamond-dressed during sharpening, keeping the grinding wheel surface clean and maintaining the desired grinding position. Therefore, the grinding wheel dressing device plays a crucial role in determining the grinding wheel's position, blade length, and cutter gate clearance.

[0003] The EVO shredder's grinding wheel dressing device is typically located on the left side of the cutter drum. It uses a single-row, multi-point dressing mechanism. The tiny diamond particles are easily worn, and the raised diamond points are not high enough, allowing soot to accumulate between the tiny diamond particles, affecting the diamond's dressing effect on the grinding wheel. Diamond wear lowers the grinding wheel's cutting position, shortening the blade and increasing the gap between the blade and the cutter gate. This can lead to uneven cuts or shredded tobacco, compromising tobacco quality. Therefore, the diamond must be checked and adjusted frequently to ensure the knife door gap. If the wear is too severe, the diamond must be replaced. At the same time, the diamond fixing rod on the current EVO wire cutter grinding wheel dressing device is generally connected to the base by a screw. It is found in daily use that because the grinding wheel rotates at high speed, the entire grinding wheel motor assembly will also move axially left and right. Therefore, under continuous contact with the diamond, the connection between the diamond fixing rod and the base often becomes loose due to vibration, and the loosening will inevitably lead to changes in the height of the diamond. Usually, it can only be discovered through investigation after the product has problems. It has obvious lag and causes great losses. At the same time, when adjusting and replacing the diamond, because it involves fine-tuning, various micro-calipers are required for corresponding adjustment and tightening operations. The operation is very troublesome, time-consuming, and the maintenance efficiency is low; it significantly increases maintenance costs and is not conducive to energy saving and consumption reduction. Summary of the Invention

[0004] In response to the above technical problems, the present invention provides an EVO wire cutting machine grinding wheel dressing device and dressing method with good use effect and convenient daily maintenance and adjustment.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The EVO wire cutting machine grinding wheel dressing device includes a diamond rod, an adjustable fixed support and a detection benchmark; a diamond is fixed to the upper end of the diamond rod; the lower end of the diamond rod is arranged to have a beveled bottom surface; a diamond rod socket is vertically opened on the upper part of the adjustable fixed support, and the diamond rod is inserted into the diamond rod socket; an adjustment hole is also horizontally opened at the lower part of the diamond rod socket; a horizontal threaded hole is opened on one side of the adjustment hole, and the horizontal threaded hole connects the adjustment hole with the outside of the adjustable fixed support; an adjustment block is movably provided in the adjustment hole, and the top surface of the adjustment block is provided with a beveled top surface corresponding to the beveled bottom surface; an adjustment screw is distributed in the horizontal threaded hole, and a push rod is provided at the front end of the adjustment screw, and the push rod can push the adjustment block to move.

[0007] Furthermore, the detection mark rod is distributed on one side of the diamond rod and within the translation track of the grinding wheel of the wire cutting machine; the top of the detection mark rod is lower than the top of the diamond on the diamond rod, and the distance between the two tops is less than the maximum wear thickness allowed for the diamond;

[0008] or

[0009] The distance between the two top ends is equal to the height to which the diamond rod rises due to the movement of the adjusting block when the adjusting screw rotates N times.

[0010] Furthermore, a second horizontal threaded hole is provided on the other side of the adjustment hole, and the second horizontal threaded hole is provided coaxially with the horizontal threaded hole; a tightening screw is provided in the second horizontal threaded hole.

[0011] Furthermore, a second push rod is provided at the front end of the tightening screw, and an extrusion spring A is provided between the second push rod and the adjusting block.

[0012] Furthermore, a blocking piece is provided between the second push rod and the extrusion spring A.

[0013] Furthermore, the detection benchmark includes a benchmark support, a telescopic rod, a varistor and an alarm circuit; a spring groove is provided in the benchmark support, a socket is provided above the spring groove, the lower part of the telescopic rod passes through the socket and is distributed in the spring groove, and the varistor is distributed at the bottom of the spring groove; an extrusion spring B is provided between the lower end of the telescopic rod and the varistor; the varistor is electrically connected to the alarm circuit.

[0014] Furthermore, a second diamond is provided at the upper end of the detection rod.

[0015] Furthermore, the horizontal threaded hole and the adjusting screw are standard parts, the head of the adjusting screw is provided with a calibration metering point or a scale ring, and the outer side of the horizontal threaded hole is also correspondingly provided with an alignment metering point or a scale ring.

[0016] Furthermore, a connecting screw is provided at the lower portion of the adjustable fixed support, and an adjusting round nut is provided on the connecting screw.

[0017] The method for performing dressing using the EVO shredder grinding wheel dressing device as described above comprises the following steps:

[0018] S1: Install the diamond rod and the detection standard rod according to the standard;

[0019] S2: When the diamonds on the diamond rod are worn by the grinding wheel of the wire cutter and the grinding wheel of the wire cutter touches and presses the top of the detection mark rod, the alarm circuit sounds an alarm;

[0020] S3: Stop the wire cutting machine for trimming, return the grinding wheel of the wire cutting machine to its original position, then loosen the tightening screw to reduce or eliminate the force of the extrusion spring A on the adjusting screw, then rotate the adjusting screw N times to cause the top of the diamond on the diamond rod to reach the standard height; then tighten the tightening screw.

[0021] The beneficial effects of the present invention compared with the prior art are as follows:

[0022] 1. The trimming involved in the present invention is mainly based on the height adjustment of the diamond after wear. Therefore, the difficulty of trimming the diamond height lies in the precise fine-tuning and tightening operation. The traditional technical solution requires the use of precision measuring tools such as micro-calipers to readjust the height of the worn diamond to the standard height. The adjustment accuracy is within 0.01mm, which is cumbersome and difficult to operate. At the same time, after adjustment, the bolts need to be tightened. The bolt tightening process may also cause the diamond height to change. After tightening, the height of the diamond top needs to be measured again. If there is still a deviation, it needs to be readjusted until the standard height is reached. The present invention is preferably provided with a detection benchmark, and the distance between the top of the detection benchmark and the top of the diamond at the standard height is a quantitative value. The role of providing the quantitative value is to trigger an alarm when the diamond wear amount is equal to the quantitative value, and then the diamond can be adjusted to the standard height by rotating the adjusting screw of the standard piece a certain number of times, completely eliminating all measurements, greatly improving the efficiency of trimming and making the trimming accurate.

[0023] 2. By correspondingly providing the tightening screw and the extrusion spring A, the adjusting screw is strongly squeezed and locked to complete the tightening. After adjusting the height of the diamond, the tightening operation will not affect the change of the diamond height. The tightening operation is simple and effective, and after tightening, it can effectively resist vibration and loosening, and the tightening effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of the adjustable fixed support of the present invention;

[0025] Figure 2 Schematic diagram of the external structure of the adjustable fixed support of the present invention;

[0026] Figure 3 is a cross-sectional view of the detection pole of the present invention;

[0027] Figure 4 This is a schematic diagram of the distribution structure of the diamond and the second diamond of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the detection benchmark of the present invention combined with an adjustable fixed support. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0030] In the following embodiments, “left, right,” “front, back,” and “inside” are merely directions defined for the convenience of description and do not constitute any limitation to the structure of the present invention.

[0031] like Figures 1 to 5As shown, the EVO wire cutting machine grinding wheel dressing device includes a diamond rod 9 and an adjustable fixed support 20; the upper end of the diamond rod 9 is fixed with a diamond 11 through a diamond fixed seat 10. The diamond 11 in this embodiment is a diamond particle with a single conical structure; the diamond particles with a conical structure can effectively avoid the accumulation of soot and improve the dressing effect on the grinding wheel; the strength and hardness of the single particle are enhanced, effectively reducing wear and increasing the service life of the diamond. The lower end of the diamond rod 9 is set to a beveled bottom surface; the upper part of the adjustable fixed support 20 is vertically opened with a diamond rod socket 12, and the diamond rod 9 is inserted into the diamond rod socket 12. The traditional diamond rod is fixed by tightening with a thread, and the diamond rod 9 of the present invention is a smooth rod. The purpose of this design is: because the diamond rod is used for rigid connection and support of the diamond, and the diamond is in direct contact with the grinding wheel of the wire cutting machine, the traditional method for the diamond rod that is loose due to vibration is to use various There are some solutions for reinforcing the diamond rod, but the effect is not good. The present invention goes the other way and changes the connection between the diamond rod 9 and the adjustable fixed support 20 into a non-tight connection, that is, the diamond rod 9 is directly inserted into the diamond rod insertion hole 12 and is not an interference fit. That is, the aperture of the diamond rod insertion hole 12 is basically equal to or even slightly larger than the diameter of the diamond rod 9. In this way, the stress generated by the continuous high vibration of the grinding wheel of the wire cutter can be effectively released, and the lifting and lowering of the diamond rod or the height positioning of the diamond is solved by the following technical solutions:

[0032] An adjustment hole 19 is also horizontally provided at the lower portion of the diamond rod socket 12; a horizontal threaded hole 13 is provided on one side of the adjustment hole 19, and the horizontal threaded hole 13 connects the adjustment hole 19 with the outside of the adjustable fixed support; the cross-section of the adjustment hole 19 of this embodiment is a rectangular structure, and the side lengths are all smaller than the diameter of the horizontal threaded hole 13, and an adjustment block 17 is movably provided in the adjustment hole 19, and the top surface of the adjustment block 17 is provided with a beveled top surface 18 corresponding to the beveled bottom surface, as shown in FIG. Figure 1As shown, the cross-section of the adjusting block 17 of this embodiment is also a rectangular structure, and its beveled top surface 18 is located in the middle of its top surface; an adjusting screw 15 is distributed in the horizontal threaded hole 13, and a push rod 16 is provided at the front end of the adjusting screw 15, and the push rod 16 can push the adjusting block 17 to move. During use, the grinding wheel of the current wire cutting machine is always pressed down, and the diamond 11 is relied on to limit its further downward movement. The diamond plays a role of limiting and is also prone to wear. Once the diamond is worn, the top of the diamond needs to be adjusted to the standard height. The difficulty of the traditional technical solution in trimming it during adjustment is: precise fine-tuning and tightening operation. The traditional technical solution needs to use precision measuring tools such as micro-calipers to readjust the height of the worn diamond to the standard height. The adjustment accuracy is within 0.1mm, which is cumbersome and difficult to operate. At the same time, after adjustment, the bolts need to be tightened. The bolt tightening process may also cause the height of the diamond to change. After tightening, the height of the diamond top needs to be measured again. If there is still deviation, it needs to be readjusted until the standard height is reached. The present invention does not have the above-mentioned traditional problems. The present invention is further provided with a detection mark rod 21, which is distributed on one side of the diamond rod 9 and distributed in the translation track of the grinding wheel of the wire cutting machine (when the wire cutting machine is running, its grinding wheel rotates at high speed, and the entire grinding wheel moves horizontally left and right). That is, the detection mark rod 21 should be distributed on the track of the entire grinding wheel moving horizontally left and right, and at the fixed position of the detection mark rod 21, some embodiments, such as Figure 4 As shown, the detection mark 21 can be distributed as an independent component around the adjustable fixed support 20; and some embodiments such as Figure 5 As shown, the detection mark rod 21 can be directly combined with the adjustable fixed support 20; the top of the detection mark rod 21 is lower than the top of the diamond 11 on the diamond rod 9, and the distance between the two tops is less than the maximum wear thickness of the diamond allowed to be worn;

[0033] or

[0034] The distance between the two top ends is equal to the height to which the diamond rod 9 is raised by the movement of the adjustment block 17 when the adjustment screw is rotated N times. This design is intended to ensure that, when the grinding wheel contacts the top end of the detection mark 21, the thickness of the diamond rod 9 worn away will be equal to the height to which the diamond rod 9 is raised when the adjustment screw is rotated N times, thus facilitating subsequent dressing operations.

[0035] Furthermore, a second horizontal threaded hole 7 is provided on the other side of the adjustment hole 19 , and the second horizontal threaded hole 7 is coaxial with the horizontal threaded hole 13 ; a tightening screw 8 is provided in the second horizontal threaded hole 7 .

[0036] Furthermore, a second push rod is provided at the front end of the tightening screw 8, and an extrusion spring A5 is provided between the second push rod and the adjusting block. When in use, after the adjusting screw 15 is adjusted, the tightening screw 8 is screwed in, prompting the extrusion spring A5 to be squeezed towards both ends, thereby realizing the compression of the adjusting screw 15 and the tightening screw 8, and realizing the firm fixation of the diamond rod 9, which can effectively resist the vibration during operation and prevent loosening; and when trimming is needed, the tightening screw 8 is rotated outward, prompting the elastic force acting on the adjusting screw 15 to be reduced or eliminated, thereby ensuring that when the adjusting screw 15 prepared by the standard part is rotated, it will not cause thread wear, which will cause inaccuracy after long-term use. In this technical solution, it relies on the standard thread of the horizontal threaded hole 13 and the adjusting screw 15, and realizes quantitative height adjustment by rotating the adjusting screw 15 a fixed number of times. At present, this technical solution also needs to cooperate with the setting of the detection benchmark 21 as described above, that is, to ensure the premise that the wear amount of the diamond 11 is a fixed value, and then perform trimming.

[0037] Furthermore, a blocking piece 6 is provided between the second push rod and the extrusion spring A5.

[0038] Furthermore, the detection mark 21 includes a mark support, a telescopic rod 23, a piezoresistor 27 and an alarm circuit, and the alarm circuit only needs to be powered by a battery; a spring slot 22 is provided in the mark support, a socket 25 is provided above the spring slot 22, the lower part of the telescopic rod 23 passes through the socket 25 and is distributed in the spring slot, and the piezoresistor 27 is distributed at the bottom of the spring slot; a compression spring B26 is provided between the lower end of the telescopic rod and the piezoresistor; the piezoresistor 27 is electrically connected to the alarm circuit. During use, when the grinding wheel touches the upper end of the detection mark, the pressure on the piezoresistor 27 is increased, and then the set threshold is reached, triggering an alarm. The compression spring B26 is provided mainly to prevent the high-speed rotating and vibrating grinding wheel from damaging the piezoresistor 27 when it contacts the upper end of the detection mark.

[0039] Furthermore, the upper end of the detection mark rod is provided with a second diamond 24 through a diamond seat 24-1. The second diamond 24 is mainly used to improve the wear resistance of the upper end of the detection mark rod and increase the service life of continuous use.

[0040] Furthermore, the horizontal threaded hole 13 and the adjusting screw 15 are standard parts, the head of the adjusting screw 15 is provided with a calibration metering point 14 or a scale ring, and the outer side of the horizontal threaded hole is also correspondingly provided with an alignment metering point or a scale ring. When in use, it is convenient to quantitatively control the rotation angle of the adjusting screw 15. For example, rotating the adjusting screw 15 one circle can control the diamond rod 9 to rise by 0.1 mm. Because the detection mark 21 is provided by matching, and the dressing operation is performed only after the detection mark 21 triggers the alarm, the wear thickness of the diamond 11 is quantitative before each correction. Then, by rotating the adjusting screw 15 a fixed number of circles as required, the quantitative adjustment of the rising height of the diamond 11 can be achieved. Compared with the traditional adjustment and control that requires the use of multiple combination tools such as micro calipers, it not only greatly reduces the operating difficulty of technicians (in fact, any technician can operate it. After the alarm is triggered, it is completed by directly rotating the adjusting screw 15 a certain number of circles), but also greatly improves work efficiency and dressing accuracy, which is a significant improvement over the existing technology.

[0041] Furthermore, the lower portion of the adjustable fixed support 20 is provided with a connecting screw 1, which is provided with a thread 4, and a circular adjusting nut 3 is mounted on the thread 4. The circular adjusting nut is 8mm thick, has an M12 inner thread, an outer diameter of Φ28, and is arrayed around its outer circumference with 13 small holes 2 with a diameter of Φ3 and a depth of 5mm. This nut primarily serves to connect and secure the adjustable fixed support 20 to the machine body.

[0042] The method for performing dressing using the EVO shredder grinding wheel dressing device as described above comprises the following steps:

[0043] S1: Install the diamond rod and the detection standard rod according to the standard;

[0044] S2: When the diamonds on the diamond rod are worn by the grinding wheel of the wire cutter and the grinding wheel of the wire cutter touches and presses the top of the detection mark rod, the alarm circuit sounds an alarm;

[0045] S3: Stop the wire cutting machine for trimming, return the grinding wheel of the wire cutting machine to its original position, then loosen the tightening screw to reduce or eliminate the force of the extrusion spring A on the adjusting screw, then rotate the adjusting screw N times to cause the top of the diamond on the diamond rod to reach the standard height; then tighten the tightening screw.

[0046] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. EVO wire cutting machine grinding wheel dressing device, characterized by: The present invention comprises a diamond rod, an adjustable fixed support and a detection standard rod; a diamond is fixed on the upper end of the diamond rod; the lower end of the diamond rod is provided with a beveled bottom surface; a diamond rod insertion hole is vertically opened on the upper part of the adjustable fixed support, and the diamond rod is inserted into the diamond rod insertion hole; an adjustment hole is also horizontally opened on the lower part of the diamond rod insertion hole; a horizontal threaded hole is opened on one side of the adjustment hole, and the horizontal threaded hole connects the adjustment hole and the outside of the adjustable fixed support; an adjustment block is movably provided in the adjustment hole, and the top surface of the adjustment block is provided with a beveled top surface corresponding to the beveled bottom surface; an adjustment screw is distributed in the horizontal threaded hole, and a push rod is provided at the front end of the adjustment screw, and the push rod can push the adjustment block to move; The detection rod is distributed on one side of the diamond rod and within the translation track of the grinding wheel of the wire cutting machine; the top of the detection rod is lower than the top of the diamond on the diamond rod, and the distance between the two tops is less than the maximum wear thickness allowed for the diamond; or The distance between the two top ends is equal to the height to which the diamond rod rises due to the movement of the adjusting block when the adjusting screw rotates N times; A second horizontal threaded hole is provided on the other side of the adjustment hole, and the second horizontal threaded hole is coaxial with the horizontal threaded hole; a tightening screw is provided in the second horizontal threaded hole.

2. The EVO cutting machine grinding wheel dressing device according to claim 1, characterized in that: A second push rod is provided at the front end of the tightening screw, and an extrusion spring A is provided between the second push rod and the adjusting block.

3. The EVO cutting machine grinding wheel dressing device according to claim 2, characterized in that: A blocking piece is further provided between the second push rod and the extrusion spring A.

4. The EVO cutting machine grinding wheel dressing device according to claim 2, characterized in that: The detection benchmark includes a benchmark support, a telescopic rod, a varistor and an alarm circuit; a spring groove is provided in the benchmark support, a socket is provided above the spring groove, the lower part of the telescopic rod passes through the socket and is distributed in the spring groove, and the varistor is distributed at the bottom of the spring groove; an extrusion spring B is provided between the lower end of the telescopic rod and the varistor; the varistor is electrically connected to the alarm circuit.

5. The EVO cutting machine grinding wheel dressing device according to claim 1 or 4, characterized in that: A second diamond is provided on the upper end of the detection rod.

6. The EVO cutting machine grinding wheel dressing device according to claim 1, characterized in that: The horizontal threaded hole and the adjusting screw are standard parts. The head of the adjusting screw is provided with a calibration metering point or a scale ring, and the outer side of the horizontal threaded hole is also correspondingly provided with an alignment metering point or a scale ring.

7. The EVO cutting machine grinding wheel dressing device according to claim 1, characterized in that: A connecting screw is further provided at the lower portion of the adjustable fixed support, and an adjusting round nut is provided on the connecting screw.

8. A method for dressing using the EVO cutting machine grinding wheel dressing device according to claim 4, characterized in that: The steps include: S1: Install the diamond rod and the detection standard rod according to the standard; S2: When the diamonds on the diamond rod are worn by the grinding wheel of the wire cutter and the grinding wheel of the wire cutter touches and presses the top of the detection mark rod, the alarm circuit sounds an alarm; S3: Stop the wire cutting machine for trimming, return the grinding wheel of the wire cutting machine to its original position, then loosen the tightening screw to reduce or eliminate the force of the extrusion spring A on the adjusting screw, then rotate the adjusting screw N times to cause the top of the diamond on the diamond rod to reach the standard height; then tighten the tightening screw.

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