CN115816303A - Grinding wheel dressing device and method for EVO filament cutter - Google Patents

Abstract

The invention relates to the technical field of shredded tobacco production equipment, and specifically discloses an EVO cutting machine grinding wheel dressing device, which includes a diamond rod and an adjustable fixed support; the upper end of the diamond rod is fixed with a diamond; Bottom surface; the upper part of the adjustable fixed support is provided with a diamond rod jack vertically; the lower part of the diamond rod jack is also provided with an adjustment hole horizontally; one side of the adjustment hole is provided with a horizontal threaded hole, and the The horizontal threaded hole communicates the adjustment hole with the outside of the adjustable fixed support; an adjustment block is movable in the adjustment hole, and the top surface of the adjustment block is provided with a chamfer corresponding to the bottom surface of the chamfer. Top surface: an adjusting screw is distributed in the horizontal threaded hole, the front end of the adjusting screw is provided with a push rod, and the push rod can push the adjustment block to move. Adopting the invention has the advantages of convenient operation, high correction precision, significantly improved work efficiency and the like.

Description

Grinding wheel dressing device and dressing method for EVO wire cutter

technical field

The invention relates to the technical field of cigarette processing, in particular to a dressing device and a dressing method for an EVO shredding machine grinding wheel.

Background technique

The shredding machine is the most important equipment on the shred production line, and its technological task is to cut the tobacco leaves into qualified shredded tobacco. It is the blade that performs the shredding work, and the blade is automatically fed. The grinding wheel is automatically fed and reciprocated to sharpen the blade to keep the blade sharp, while controlling the elongation of the blade to keep the cutting diameter of the cutter roll unchanged, to ensure the constant gap between the blade and the knife door, and to ensure the stability of the cutting quality. The grinding wheel is trimmed by diamond while grinding the knife to keep the surface of the grinding wheel clean and ensure that the grinding wheel is in a specific grinding position. Therefore, the grinding wheel dressing device determines the position of the grinding wheel, the length of the blade, and the clearance of the knife door, and plays a pivotal role.

The grinding wheel dressing device of EVO shredding machine is generally installed on the left side of the cutter roller. It adopts a single-row multi-point type, and the diamond particles are small and easy to wear. In addition, the height of the diamond particle bumps is not high enough, and the soot is easy to accumulate between the small diamond particles. The dressing effect of diamond on the grinding wheel. After the diamond wears out, the grinding position of the grinding wheel will be lowered, the blade will be shortened, and the gap between the blade and the knife door will increase, resulting in uneven thickness of shredded shreds or runaway shredded shreds, which will affect the quality of shredded tobacco. Therefore, the diamond must be frequently checked and adjusted to ensure the clearance of the knife door. If the wear is too serious, 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 through a screw. In daily use It was found that because the grinding wheel rotates at a 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 Looseness will inevitably lead to a change in the height of the diamond. Usually, it can only be found through investigation after the product has a problem, which has obvious hysteresis and causes a large loss. The corresponding adjustment and tightening operation of the caliper is very troublesome, time-consuming, and low in maintenance efficiency; it significantly increases the maintenance cost, which is not conducive to energy saving and consumption reduction.

Contents of the invention

Aiming at the above-mentioned technical problems, the present invention provides a dressing device and a dressing method for the grinding wheel of an EVO shredding machine, which are good in use effect and convenient in daily maintenance and adjustment.

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

EVO wire cutter grinding wheel dressing device, including diamond rod, adjustable fixed support and detection benchmark; the upper end of the diamond rod is fixed with diamond; the lower end of the diamond rod is set as a beveled bottom surface; the adjustable fixed support The upper part of the vertical opening is provided with a diamond rod socket, and the diamond rod is inserted into the distribution of the diamond rod socket; the lower part of the diamond rod socket is also provided with an adjustment hole horizontally; one side of the adjustment hole is provided with a horizontal Threaded hole, the horizontal threaded hole communicates the adjustment hole with the outside of the adjustable fixed support; an adjustment block is movable in the adjustment hole, and the top surface of the adjustment block corresponds to the chamfered The bottom surface is provided with a chamfered top surface; an adjusting screw is distributed in the horizontal threaded hole, and the front end of the adjusting screw is provided with a push rod, and the push rod can push the adjustment block to move.

Further, the detection benchmark is distributed on one side of the diamond rod and distributed in the grinding wheel translation track of the wire cutter; the top of the detection benchmark is lower than the top of the diamond on the diamond rod, and the two tops The distance between them is less than the maximum wear thickness allowed by the diamond;

or

The distance between the two top ends is equal to the height at which the diamond rod is raised by the amount of movement of the adjustment block when the adjustment screw rotates N times.

Further, 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.

Further, a second push rod is provided at the front end of the tightening screw, and a compression spring is also provided between the second push rod and the adjusting block.

Further, a blocking piece is also provided between the second push rod and the pressing spring.

Further, the detection pole includes a pole support, a telescopic rod, a piezoresistor and an alarm circuit; a spring groove is provided in the pole support, and a socket is opened above the spring groove, and the lower part of the telescopic rod passes through Distributed in the spring groove through the jack, the piezoresistor is distributed at the bottom of the spring groove; a squeeze spring is arranged between the lower end of the telescopic rod and the piezoresistor; The sensitive resistor is electrically connected with the alarm circuit.

Further, the upper end of the detection benchmark is provided with a second diamond.

Further, the horizontal threaded hole and the adjusting screw are standard parts, the head of the adjusting screw is provided with a calibration measurement point or a scale ring, and the outer side of the horizontal threaded hole is also provided with an alignment measurement point or graduated circles.

Further, the lower part of the adjustable fixed support is also provided with a connecting screw, and an adjusting round nut is provided on the connecting screw.

The method for dressing using the above-mentioned EVO shredding machine grinding wheel dressing device comprises the following steps:

S1: Install the diamond rod and the detection benchmark according to the standard;

S2: When the diamond on the diamond rod is worn by the grinding wheel of the wire cutter, and the grinding wheel of the wire cutter touches the top of the detection benchmark, the alarm circuit alarms;

S3: Stop the wire cutter for trimming, return the grinding wheel of the wire cutter, then loosen the tightening screw, reduce or eliminate the force of the extrusion spring on the adjustment screw, and then turn the adjustment screw N circles impel the top of the diamond on the diamond rod to reach a standard height; then tighten the tightening screw.

The beneficial effect of the present invention compared with prior art:

1. The trimming involved in the present invention is mainly based on the height adjustment after diamond wear. Therefore, the difficulty of trimming the diamond height lies in the precise fine-tuning and tightening operation. The traditional technical solution needs to use precision measuring tools such as micro-calipers to measure the height of the worn-out diamond. Re-adjust to the standard height. The adjustment accuracy is within 0.01mm. The operation is cumbersome and difficult. At the same time, after the adjustment, the bolts need to be tightened. The bolt tightening process may also cause the diamond height to change. Measure the height of the top of the diamond, if it is found that there is still a deviation, it needs to be readjusted until it reaches the standard height; the first choice of the present invention is to have 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 effect of having this quantitative value is that when the amount of diamond wear is equal to this quantitative value, an alarm is triggered, and then the diamond can be adjusted to a standard height by turning the adjustment screw of the standard part for a certain number of turns, and completely All the measurements are saved, the efficiency of trimming is greatly improved and the trimming is accurate.

2. By correspondingly setting the tightening screw and the extrusion spring, the adjustment screw can be 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 the effect is good, and it can effectively resist vibration and loosening after tightening, and the tightening effect is good.

Description of drawings

Fig. 1 is a sectional view of the adjustable fixed support of the present invention;

Fig. 2 is a schematic diagram of the external structure of the adjustable fixed support of the present invention;

Fig. 3 is a sectional view of the detection benchmark of the present invention;

Fig. 4 is a schematic diagram of the distribution position structure of the diamond and the second diamond of the present invention;

Fig. 5 is a schematic diagram of the structure of the detection benchmark combined with the adjustable fixed support according to the present invention.

Detailed ways

The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

In the following embodiments, "left, right", "front, back" and "inner" are only directions determined for the convenience of descriptors, and neither constitutes a limitation on the structure of the present invention.

As shown in Figures 1 to 5, the EVO wire cutter 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 holder 10, and the diamond 11 is fixed to the diamond rod 9 in this embodiment. The diamond 11 is a diamond particle with a single cone structure; the diamond particles with a cone structure can effectively avoid the accumulation of soot and improve the dressing effect of the grinding wheel; the strength and hardness of a single particle are enhanced, which effectively reduces wear and improves the use of diamond. life. The lower end of the diamond rod 9 is set as a chamfered bottom surface; the upper part of the adjustable fixed support 20 is vertically provided with a diamond rod jack 12, and the diamond rod 9 is inserted into the diamond rod jack 12 for distribution. Diamond rod is to adopt screw thread to fasten and fix, and diamond rod 9 of the present invention is then a bar of smoothness, and the purpose of designing like this is: because diamond rod is used for rigidly connecting and supporting diamond, and diamond and wire cutter The grinding wheel is in direct contact, and the traditional method for loosening the diamond rod due to vibration all adopts various schemes for strengthening the diamond rod, but the effect is not good, and the present invention does the opposite, combining the diamond rod 9 with the adjustable fixed support The connection of the seat 20 becomes a non-fastened connection, that is, the diamond rod 9 is directly inserted into the diamond rod jack 12 and is not an interference fit, that is, the diameter of the diamond rod jack 12 is basically equal to or even slightly larger than the diameter of the diamond rod 9, This can effectively release the stress from the continuous high vibration of the grinding wheel of the wire cutter, and the lifting of the diamond rod or the height positioning of the diamond is solved by the following technical solutions:

The bottom of the diamond rod jack 12 is also horizontally provided with an adjustment hole 19; one side of the adjustment hole 19 is provided with a horizontal threaded hole 13, and the horizontal threaded hole 13 fixes the adjustment hole 19 and the adjustable The external connection of the support; the cross-section of the adjustment hole 19 in this embodiment is a rectangular structure, and the side length is smaller than the diameter of the horizontal threaded hole 13, and the adjustment block 17 is movable in the adjustment hole 19, The top surface of the regulating block 17 is provided with a chamfered top surface 18 corresponding to the chamfered bottom surface. As shown in Figure 1, the cross section of the regulating block 17 in this embodiment is also in a rectangular structure, and then the chamfered top surface The surface 18 is located in the middle of its top surface; the horizontal threaded hole 13 is distributed with an adjusting screw 15, and the front end of the adjusting screw 15 is provided with a push rod 16, and the push rod 16 can push the moving of the adjusting block 17 . When in use, the grinding wheel of the currently used wire cutting machine is always pressed down, and the diamond 11 is used to limit its continuous downward movement. Once wear and tear occurs, the top of the diamond needs to be adjusted to a standard height. The difficulty of trimming the traditional technical solution lies in: precise fine-tuning and tightening operations. The traditional technical solution needs to use precision measuring tools such as micro calipers to adjust the top The height of the worn diamond is readjusted to the standard height. The adjustment accuracy is within 0.1mm. The operation is cumbersome and difficult. At the same time, after the adjustment, the bolts need to be tightened. The bolt tightening process may also cause changes in the diamond height. , After tightening, it is necessary to re-measure the height of the top of the diamond. If there is still a deviation, it needs to be re-adjusted until it reaches the standard height. And the present invention can not occur the above-mentioned problem of tradition. The present invention is also provided with a detection benchmark 21, and the detection benchmark 21 is distributed on one side of the diamond rod 9 and is distributed in the grinding wheel translation track of the wire cutter (when the wire cutter is running, its grinding wheel rotates at a high speed, while the whole The whole grinding wheel also moves horizontally left and right) that is, the detection benchmark 21 will be distributed on the track of the whole grinding wheel horizontal movement left and right, and on the fixed position of the detection benchmark 21, as shown in Fig. 4 in some embodiments, the described The detection mark 21 is distributed on the periphery of the adjustable fixed support 20 as an independent component; and in some embodiments, as shown in FIG. 5 , the detection mark 21 can be directly combined on the adjustable fixed support 20 The top of the detection mark 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 that allows wear;

or

The distance between the two top ends is equal to the height at which the diamond rod 9 is raised by the amount of movement of the adjustment block 17 when the adjustment screw rotates N times. The purpose of this design is: when in use, when the emery wheel touches the top of the detection benchmark 21, the thickness of the diamond rod 9 worn at this moment is equal to the amount that the diamond rod 9 is raised when the adjusting screw rotates N circles. height, which facilitates subsequent trimming operations.

Further, the other side of the adjustment hole 19 is provided with a second horizontal threaded hole 7, and the second horizontal threaded hole 7 is coaxially opened with the horizontal threaded hole 13; There is tightening screw rod 8.

Further, a second push rod is provided at the front end of the tightening screw 8, and a squeeze spring 5 is also provided between the second push rod and the adjusting block. When in use, after the adjustment screw 15 is adjusted, the tightening screw 8 is screwed in, so that the extrusion spring 5 is squeezed to both ends, thereby realizing the compression of the adjustment screw 15 and the tightening screw 8. Tight, to realize the stable fixation of the diamond rod 9, which can effectively resist the vibration during the operation and prevent loosening; and when trimming is required, the tightening screw 8 is rotated outward to promote the elastic force acting on the adjusting screw 15. Reduce or eliminate, and then ensure that when the adjustment screw 15 prepared by the standard is rotated, it will not cause thread wear, which will cause inaccurate occurrence after long-term use. In this technical solution, it is to rely on the horizontal thread The hole 13 and the standard thread of the adjusting screw 15 realize the adjustment of the quantitative height by rotating the adjusting screw 15 for a fixed number of turns. The current technical solution also needs to cooperate with the setting of the detection benchmark 21 as described above, namely The precondition that the amount of wear of the diamond 11 is a fixed value is ensured, and then dressing is performed.

Further, a blocking piece 6 is also provided between the second push rod and the pressing spring 5 .

Further, the detection mark 21 includes a mark support 21, a telescopic rod 23, a piezoresistor 27 and an alarm circuit, and the alarm circuit only needs to be powered by a battery; The top of the spring groove 22 is provided with a jack 25, the bottom of the telescopic rod 23 passes through the jack 25 and is distributed in the spring groove, and the piezoresistor 27 is distributed at the bottom of the spring groove; A squeeze spring 26 is arranged between the lower end of the rod and the piezoresistor; the piezoresistor 27 is electrically connected to the alarm circuit. When in use, when the grinding wheel touches the upper end of the detection pole, the pressure on the piezoresistor 27 is increased, and then reaches the set threshold, triggering an alarm. The compression spring 26 is provided mainly to prevent the piezoresistor 27 from being damaged when the high-speed rotating and vibrating grinding wheel contacts the upper end of the detection mark.

Further, the upper end of the detection benchmark is provided with a second diamond 24 through the diamond seat 24-1. The second diamond 24 is mainly to improve the wear resistance of the upper end of the detection benchmark and increase the service life of continuous use.

Further, 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 circle, and the outer side of the horizontal threaded hole is also provided with a corresponding Align metering dots or scale circles. When in use, it is convenient to quantitatively control the rotation angle of the adjusting screw 15. For example, if the adjusting screw 15 is rotated one turn, the diamond rod 9 can be controlled to rise by 0.1 mm, because the detection is provided by matching. Marking pole 21, and the trimming operation is performed after the detection benchmark pole 21 triggers an alarm. Therefore, the wear thickness of the diamond 11 before each correction is quantitative, and then the adjustment screw 15 is rotated and fixed according to the requirements. The number of turns can realize the quantitative adjustment of the rising height of the diamond 11. Compared with the traditional method, various combined tools such as micro-calipers are needed for adjustment and control, which not only greatly reduces the difficulty of the technician’s operation (in essence, any technician can operate and trigger the alarm. Afterwards, directly rotate described adjusting screw rod 15 certain number of circles and just finished), and greatly improve work efficiency and the accuracy of trimming, have remarkable progress compared with prior art.

Further, the lower part of the adjustable fixed support 20 is also provided with a connecting screw 1, the connecting screw 1 is provided with a thread 4, and the thread 4 is provided with an adjusting round nut 3, and the thickness of the adjusting round nut is 8mm , The inner hole is M12 thread, the outer diameter is Φ28, and 13 small holes 2 with a diameter of Φ3 and a depth of 5mm are arrayed on the outer circumference. Its function is mainly to connect and fix the adjustable fixed support 20 with the machine body.

The method for dressing using the above-mentioned EVO shredding machine grinding wheel dressing device comprises the following steps:

S1: Install the diamond rod and the detection benchmark according to the standard;

S2: When the diamond on the diamond rod is worn by the grinding wheel of the wire cutter, and the grinding wheel of the wire cutter touches the top of the detection benchmark, the alarm circuit alarms;

S3: Stop the wire cutter for trimming, return the grinding wheel of the wire cutter, then loosen the tightening screw, reduce or eliminate the force of the extrusion spring on the adjustment screw, and then turn the adjustment screw N circles impel the top of the diamond on the diamond rod to reach a standard height; then tighten the tightening screw.

In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method and core idea of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that due to the limitation of literal expression, there are objectively unlimited specific structures. For those of ordinary skill in the art, without departing from the principle of the present invention, Several improvements, modifications or changes can also be made, and the above-mentioned technical features can also be combined in an appropriate manner; these improvements, modifications, or combinations, or the idea and technical solution of the invention are directly applied to other occasions without improvement, All should be regarded as the protection scope of the present invention.

Claims (10)

1. EVO filament cutter emery wheel finishing device, its characterized in that: comprises a diamond rod, an adjustable fixed support and a detection marker post; diamonds are fixed at the upper ends of the diamond rods; the lower end of the diamond rod is provided with a beveled bottom surface; diamond rod insertion holes are vertically formed in the upper portion of the adjustable fixed support, and the diamond rods are inserted into the diamond rod insertion holes and distributed; the lower part of the diamond rod jack is also horizontally provided with an adjusting hole; a horizontal threaded hole is formed in one side of the adjusting hole and communicates the adjusting hole with the outside of the adjustable fixing support; an adjusting block is movably arranged in the adjusting hole, and the top surface of the adjusting block is provided with a beveled top surface corresponding to the beveled bottom surface; adjusting screws are distributed in the horizontal threaded holes, ejector rods are arranged at the front ends of the adjusting screws, and the ejector rods can push the adjusting blocks to move.
2. 2. The EVO shredder grinding wheel truing apparatus according to claim 1, wherein: the detection marker posts are distributed on one side of the diamond rod and in a grinding wheel translation track of the tobacco cutter; the top end of the detection mark post is lower than the top end of the diamond on the diamond rod, and the distance between the two top ends is smaller than the maximum abrasion thickness of the diamond which is allowed to be abraded;

   or

   The distance between the two top ends is equal to the height of the diamond rod which is promoted to rise by the movement amount of the adjusting block when the adjusting screw rod rotates for N circles.
3. 3. The EVO shredder grinding wheel truing apparatus according to claim 1, wherein: a second horizontal threaded hole is formed in the other side of the adjusting hole, and the second horizontal threaded hole and the horizontal threaded hole are coaxially formed; and a tightening screw is arranged in the second horizontal threaded hole.
4. 4. The EVO shredder grinding wheel truing apparatus according to claim 3, wherein: and a second ejector rod is arranged at the front end of the tightening screw rod, and an extrusion spring is further arranged between the second ejector rod and the adjusting block.
5. 5. The EVO shredder grinding wheel truing apparatus according to claim 4, wherein: and a separation blocking piece is arranged between the second ejector rod and the extrusion spring.
6. 6. The EVO shredder grinding wheel truing apparatus according to claim 2, wherein: the detection marker post comprises a marker post support, a telescopic rod, a piezoresistor and an alarm circuit; a spring groove is formed in the marker post support, an insertion hole is formed above the spring groove, the lower portion of the telescopic rod penetrates through the insertion hole and is distributed in the spring groove, and the piezoresistors are distributed at the bottom of the spring groove; an extrusion spring is arranged between the lower end of the telescopic rod and the piezoresistor; the piezoresistor is electrically connected with the alarm circuit.
7. 7. The EVO shredder grinding wheel truing device according to claim 2 or 6, wherein: and a second diamond is arranged at the upper end of the detection marker post.
8. 8. The EVO shredder grinding wheel truing apparatus according to claim 1, wherein: the horizontal threaded hole and the adjusting screw are standard parts, a calibration metering point or a calibration ring is arranged at the head of the adjusting screw, and an alignment metering point or a calibration ring is correspondingly arranged at one side of the outer part of the horizontal threaded hole.
9. 9. The EVO shredder grinding wheel truing apparatus according to claim 1, wherein: the lower part of the adjustable fixing support is also provided with a connecting screw rod, and an adjusting round nut is arranged on the connecting screw rod.
10. 10. The method of dressing using the EVO shredder grinding wheel dressing apparatus according to any one of claims 1 to 9, comprising the steps of:

    s1: installing the diamond rod and the detection marker post according to a standard;

    s2: when the diamond on the diamond rod is worn by a grinding wheel of a filament cutter and the diamond is worn until the grinding wheel of the filament cutter touches and presses the top end of the detection marker post, the alarm circuit gives an alarm;

    s3: stopping the filament cutter for trimming, returning a grinding wheel of the filament cutter, loosening the tightening screw rod, reducing or eliminating the acting force of the extrusion spring on the adjusting screw rod, and rotating the adjusting screw rod for N circles to enable the top end of the diamond on the diamond rod to reach the standard height; the tightening screw is then tightened.

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