CN115519478A - Grinding wheel dressing device, filament cutter and control method of filament cutter - Google Patents

Abstract

The invention provides a grinding wheel dressing device, a filament cutter and a control method of the filament cutter, wherein the grinding wheel dressing device comprises: the executing system comprises a mounting seat and a diamond, the diamond is arranged on the mounting seat and can move relative to the mounting seat, and the diamond is used for correcting the grinding wheel when the grinding wheel moves to the position where the diamond is located; the control unit controls the distance measuring unit to detect the distance from the grinding wheel to the distance measuring unit when the grinding wheel moves to the position of the distance measuring unit, and determines the current knife gate gap according to the detection result and the stored corresponding relation between the distance from the grinding wheel to the distance measuring unit and the knife gate gap. The invention can obtain the current knife gate gap at any time, saves the trouble of manually measuring the gap when a user stops, realizes automatic measurement without stopping, and has small measurement error and high precision.

Description

Grinding wheel dressing device, filament cutter and control method of filament cutter

Technical Field

The invention belongs to the field of filament cutters, and particularly relates to a grinding wheel dressing device, a filament cutter and a control method of the filament cutter.

Background

At present, most of tobacco shredders used in the tobacco industry at home and abroad adopt grinding wheels to grind blades, and the grinding wheels are dressed by diamonds in the using process so as to ensure the cleanness of the grinding wheels and further ensure the grinding effect; meanwhile, the grinding position point of the diamond directly determines the extension amount of the shredding blade and determines the knife gate gap in the shredding process, and the knife gate gap is a key factor for determining the good and bad shredding quality, so that the diamond position is often required to be adjusted manually in due time in the process of adjusting the knife gate gap to ensure the shredding quality. The most widely used method is to manually adjust the position of the diamond screw in a thread meshing manner, and the device needs to be stopped, and a manual execution mode is adopted when the diamond screw enters the tool bit space.

And just can be adjusted by staff's manual work after such mode need shut down, cause the delay on the one hand and generate the task, lead to economic benefits impaired, on the other hand, staff's operation is loaded down with trivial details relatively, and the precision of adjusting is at the bottom, and the error is big.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a grinding wheel dressing device, a shredder and a control method of the shredder.

In order to solve the technical problems, the invention adopts the technical scheme that:

the invention provides a grinding wheel dressing device, comprising:

the diamond is arranged on the mounting seat and can move relative to the mounting seat, and the diamond is used for correcting the grinding wheel when the grinding wheel moves to the position where the diamond is located;

the detection system comprises a distance measurement unit and a control unit, wherein the control unit is connected with the distance measurement unit and the execution system, and controls the distance measurement unit to detect the distance from the grinding wheel to the distance measurement unit when the grinding wheel moves to the position where the distance measurement unit is located, and determines the current knife gate gap according to the detection result, the stored corresponding relation between the distance from the grinding wheel to the distance measurement unit and the knife gate gap.

In the above technical solution, the execution system further includes a driving assembly, the driving assembly is disposed on the mounting base and connected to the diamond, and the control unit is connected to the driving assembly and controls the diamond to move to a position corresponding to a target tool gate gap;

preferably, the driving assembly comprises a driving member and a transmission member, the transmission member is connected with the diamond, and the driving member is connected with the transmission member and is suitable for driving the diamond to move by driving the transmission member;

more preferably, the driving part is a motor, the driving part is a worm wheel and a worm, the worm is arranged on an output shaft of the motor, and the worm wheel is meshed with the worm and connected with the diamond.

In any of the above technical solutions, the distance measuring unit is a laser distance measuring piece or the distance measuring unit includes an air pressure distance measuring piece and an air supply line, the air supply line is communicated with the air pressure distance measuring piece and is adapted to supply air to the air pressure distance measuring piece, and the air pressure distance measuring piece is adapted to exhaust air outwards and measure distance according to air pressure change;

preferably, the air pressure distance measuring piece is arranged on the mounting seat, and the air supply pipeline is arranged in the mounting seat.

In any one of the above technical solutions, the laser distance measuring piece or the air pressure distance measuring piece is disposed on the mounting base and can move up and down relative to the mounting base.

In any one of the above technical solutions, the grinding wheel moves between the diamond and the knife roll assembly, and the distance measuring unit is located at a position where a movement track of the grinding wheel between the diamond and the knife roll assembly is opposite.

In any of the above technical solutions, the detection system further includes:

the display unit is connected with the control unit and is used for displaying the current knife gate gap determined by the control unit;

preferably, the detection system further comprises an input unit, the input unit is connected with the control unit and the display unit, and the input system is used for inputting the target knife gate gap.

The present invention also provides a shredder comprising:

the grinding wheel dressing device according to any one of the above aspects;

a knife roll assembly;

and the grinding wheel assembly is provided with a grinding wheel, and the grinding wheel moves between the knife roller assembly and the diamond of the grinding wheel dressing device.

The invention also provides a control method of the filament cutter, which is suitable for the filament cutter and comprises the following steps:

s101: acquiring the corresponding relation between the distance from the grinding wheel to the distance measuring unit and the knife gate gap;

s102: controlling the grinding wheel to move between the knife roll assembly and the diamond, and detecting the distance from the current grinding wheel to the distance measuring unit;

s103: and determining the current knife gate gap according to the corresponding relation and the detected distance from the current grinding wheel to the distance measuring unit.

In any of the above technical solutions, after step S103, the method further includes:

acquiring a target knife gate gap;

and controlling a driving assembly to work according to the corresponding relation, the target knife gate gap and the current knife gate gap so as to adjust the diamond, so that the adjusted knife gate gap meets the target knife gate gap.

In any of the above technical solutions, the control method further includes an initial adjustment step, where the initial adjustment step specifically includes:

controlling the diamond to move to the position below the distance measuring unit;

controlling the grinding wheel to move to the position above the distance measuring unit, controlling the distance measuring unit to detect the distance from the grinding wheel to the distance measuring unit, and recording the detected distance as an initial distance;

controlling a grinding wheel to move above the diamond and controlling the diamond to move towards the grinding wheel until the diamond contacts the grinding wheel;

controlling the grinding wheel to move to the knife roller assembly and controlling the grinding wheel to grind the blade of the knife roller assembly;

acquiring the knife gate gap of the grinded blade and recording the knife gate gap as an initial knife gate gap;

and determining and storing the corresponding relation between the distance from the grinding wheel to the distance measuring unit and the knife gate gap according to the initial distance and the initial knife gate gap.

The distance measuring device is characterized in that the distance between the grinding wheel and the distance measuring unit is pre-stored, namely the corresponding relation between the position of the diamond and the knife gate gap is pre-stored, the distance measuring unit can detect the distance between the grinding wheel and the distance measuring unit when the grinding wheel moves to the position of the distance measuring unit, and the distance measuring unit is relatively fixed relative to the position of the diamond, so that the current knife gate gap can be obtained at any time, the trouble that a user stops and manually measures the gap is eliminated, the purposes of no shutdown and automatic measurement are realized, and the measuring error is small and the measuring accuracy is high.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a perspective view of a wheel dresser apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of another embodiment of the grinding wheel dressing apparatus according to the present invention;

FIG. 3 is a schematic cross-sectional view of a grinding wheel truing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a grinding wheel dressing device, a grinding wheel and a knife roller assembly according to an embodiment of the invention.

In the figure: 100. a grinding wheel dressing device;

110. an execution system; 111. a mounting seat; 112. diamond;

121. a distance measuring unit; 1211. an air pressure distance measuring member; 1212. a gas supply line;

122. a drive assembly; 1221. a drive member; 1222. a transmission member; 12221. a worm; 12222. a worm gear; 1223. a manual adjustment device; 123. a standard gauge block; 124. a vibration sensor; 125. a speed reducer;

200. a grinding wheel;

300. a knife roller assembly.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following describes a wheel truing apparatus 100, a shredder, and a method of controlling a shredder according to some embodiments of the present invention with reference to the drawings.

An embodiment of a first aspect of the invention provides a wheel truing apparatus 100. The wheel dresser device 100 is suitable for a tobacco cutter, particularly for tobacco cutters. For example, the tobacco cutter includes a knife roller assembly 300, a grinding wheel 200 assembly and a grinding wheel dressing device 100, the knife roller assembly 300 at least includes a knife roller and a motor for driving the knife roller to rotate, the knife roller is provided with a plurality of extensible blades, and the motor drives the knife roller to rotate so that the blades sequentially cut the articles such as tobacco. The grinding wheel 200 assembly at least comprises a grinding wheel 200 and a motor for driving the grinding wheel 200 to move, wherein the motor drives the grinding wheel 200 to enable the grinding wheel 200 to move between the knife roller assembly 300 and the grinding wheel dressing device 100, and when the grinding wheel 200 is located at the position of the knife roller assembly 300, the motor drives the grinding wheel 200 to rotate, so that the grinding wheel 200 can grind a blade on a knife roller, the sharpness of the blade is ensured, the extending length of the blade can be kept consistent, and the consistency of a knife gate gap is further ensured; when the grinding wheel 200 is located at the position of the grinding wheel dressing device 100, the motor drives the grinding wheel 200 to rotate and feed relative to the grinding wheel dressing device 100, so that the grinding wheel 200 can be dressed by the diamond 112 on the grinding wheel dressing device 100, the surface cleaning of the grinding wheel 200 is realized, and meanwhile, the consistency of the grinding track of the grinding wheel 200 relative to the blade is favorably maintained.

The embodiment of the invention provides a grinding wheel dressing device 100, which comprises an execution system 110 and a detection system.

Specifically, the actuating system 110 comprises a mounting seat 111 and a diamond 112, wherein the diamond 112 is arranged on the mounting seat 111 and can move relative to the mounting seat 111, the diamond 112 is used for correcting the grinding wheel 200 when the grinding wheel 200 moves to the position where the diamond 112 is located, the mounting seat 111 is used for fixing the diamond 112, and the diamond 112 can be lifted or lowered relative to the mounting seat 111, so that the grinding track of the grinding wheel 200 can be adjusted.

In detail, under the condition that the position of the diamond 112 is kept unchanged, when the grinding wheel 200 moves to the position of the knife roll assembly 300 again after being corrected by the diamond 112, the grinding track is kept consistent, so that the extension length of the blade is correspondingly consistent, the distance between the blade edge and the knife gate, namely the knife gate gap is also kept consistent, when the diamond 112 is raised or lowered, the grinding track of the grinding wheel 200 after being corrected by the diamond 112 is correspondingly raised or lowered, so that the extension length of the blade is correspondingly increased or shortened, and the knife gate gap is correspondingly reduced or increased, namely, the position of the diamond 112, the grinding track of the grinding wheel 200 and the knife gate gap are in a corresponding relationship with each other.

The detection system comprises a ranging unit 121 and a control unit, the control unit being connected to the ranging unit 121 and the execution system 110. In more detail, the control unit is connected with the ranging unit 121 and the execution system 110 through a wired connection or through a wireless connection. For example, the control unit is electrically connected with the ranging unit 121 and the execution system 110, respectively, so that the control unit can transmit control signals to the ranging unit 121 and the execution system 110.

The distance measuring unit 121 is used for measuring the distance between the object and the distance measuring unit 121, and in the present embodiment, the distance measuring unit 121 is used for measuring the distance between the grinding wheel 200 and the distance measuring unit 121 when the grinding wheel 200 moves to the position where the distance measuring unit 121 is located (e.g., the grinding wheel 200 moves above the distance measuring unit 121).

The control unit controls the distance measuring unit 121 to detect the distance from the grinding wheel 200 to the distance measuring unit 121 when the grinding wheel 200 moves to the position where the distance measuring unit 121 is located, and determines the current knife gate gap according to the detection result and the stored corresponding relationship between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap.

The position of the distance measuring unit 121 is relatively fixed, and it is kept after the user has first used and debugged. When the grinding wheel 200 moves to the position where the ranging unit 121 is located, the control unit controls the ranging unit 121 to detect, thereby obtaining the distance a between the grinding wheel 200 and the ranging unit 121. And then determining the current knife gate gap H according to the corresponding relation between the distance a from the grinding wheel 200 to the ranging unit 121 and the knife gate gap H stored in the system. In more detail, H = a/(a/H).

Regarding the stored corresponding relationship between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap, for example, in the first use and debugging stage of the user, the sticker method may be adopted to obtain the initial knife gate gap, and then the grinding wheel 200 is moved to the position of the distance measuring unit 121, and the distance measuring unit 121 measures the distance value from the grinding wheel 200 to the distance measuring unit 121 under the knife gate gap, so as to obtain the corresponding relationship between the distance a from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap h. The detailed steps are as follows:

in the debugging stage, a blade is selected at will, the paper slips with the same thickness are pasted on the two sides uniformly, meanwhile, the knife roller is rotated after red pastel powder is coated on the knife gate, whether the seal paper has the impression of the red pastel powder or not is observed, and if the seal paper is not thickened continuously until the red seal mark appears on the seal paper.

And after the red marks appear, measuring the thicknesses of all current paper, wherein the measured thicknesses are the current knife gate gap.

And adjusting the grinding wheel 200, rotating the adjusted blade to the position of the grinding wheel 200 by rotating the knife roller by hands, and manually feeding the grinding wheel 200 downwards to ensure that the grinding wheel 200 and the blade are in light contact. Then, the other blades are sequentially shaken to be in light contact with the grinding wheel 200 as a reference.

The diamond 112 is adjusted, and the diamond 112 is adjusted to be in light contact with the grinding wheel 200, also with reference to the grinding wheel 200.

And detecting the distance from the grinding wheel 200 to the distance measuring unit 121 by taking the grinding wheel 200 as a reference to obtain the corresponding relation between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap.

The distance between the grinding wheel 200 and the distance measuring unit 121 and the knife gate gap are prestored, namely the corresponding relation between the position of the diamond 112 and the knife gate gap is prestored, the distance measuring unit 121 can detect the distance between the grinding wheel 200 and the distance measuring unit 121 when the grinding wheel 200 moves to the position of the distance measuring unit 121, and the distance measuring unit 121 is relatively fixed relative to the diamond 112, so that the current knife gate gap can be obtained at any time, the trouble that a user stops and manually measures the gap is omitted, the purposes of no shutdown and automatic measurement are achieved, the measurement error is small, and the measurement accuracy is high.

The adjustment of the diamond 112 provided by the present invention may be manual or automatic, among other things.

In some embodiments, to further improve the automation of the product, the setup execution system 110 further includes a driving assembly 122, the driving assembly 122 is disposed on the mounting base 111 and connected to the diamond 112, and the control unit is connected to the driving assembly 122 and controls the diamond 112 to move to a position corresponding to the target knife gate gap. The diamond 112 is driven to move by the drive assembly 122 to adjust the position of the diamond 112. And in combination with the detected current gap, the driving assembly 122 can be controlled to work to enable the diamond 112 to accurately move to a target position, so that a target knife gate gap is achieved, the whole set of equipment is unmanned and intelligent in the whole process from detecting the knife gate gap to adjusting the knife gate gap, meanwhile, the knife gate gap can be adjusted without stopping, and the product use experience is better.

Preferably, the driving assembly 122 comprises a driving member 1221 and a transmission member 1222, the transmission member 1222 is connected to the diamond 112, the driving member 1221 is connected to the transmission member 1222 and is adapted to move the diamond 112 by the driving transmission member 1222. The structure is simple, the cost is low, and the driving is reliable.

For example, the driving member 1221 is a motor, the transmission member 1222 is a worm wheel 12221 and a worm 12222, the worm 12221 is disposed on an output shaft of the motor, and the worm wheel 12222 is engaged with the worm 12221 and connected to the diamond 112. Therefore, the motor works to enable the output shaft to rotate, the output shaft rotates to drive the worm 12221 on the output shaft to rotate, the worm 12221 rotates to drive the worm wheel 12222 meshed with the worm 12221 to move up and down, the diamond 112 is driven to move up and down, and the knife gate gap is adjusted.

Preferably, the mounting seat 111 has an accommodating cavity, and the driving component 122 is located in the accommodating cavity, so as to hide the driving component 122, on one hand, the appearance of the grinding wheel dressing device 100 is simple, on the other hand, the mounting seat 111 is used for protecting the driving component 122, so that the driving component 122 is prevented from falling ash or being physically impacted, and the working reliability of the driving component 122 is ensured.

Of course, the above is only one preferred embodiment of the driving assembly 122, and those skilled in the art can also design the driving assembly 122 into other structural forms according to the specific use requirement, for example, the driving assembly 122 is configured to include a motor, a gear, and a rack.

In some embodiments, the distance measuring unit 121 is a laser distance measuring device, and the laser distance measuring device has the advantages of simple structure and high detection precision.

In other embodiments, the distance measuring unit 121 includes an air pressure distance measuring unit 1211 and an air supply line 1212, the air supply line 1212 is in communication with the air pressure distance measuring unit 1211 and is adapted to supply air to the air pressure distance measuring unit 1211, and the air pressure distance measuring unit 1211 is adapted to discharge air and measure a distance according to a change in air pressure.

It can be understood that the pressure change detected by the air pressure distance measuring unit 1211 is different for different heights of the grinding wheel 200 relative to the air pressure distance measuring unit 1211, and in detail, the closer the grinding wheel 200 is relative to the air pressure distance measuring unit 1211, the greater the pressure detected by the air pressure distance measuring unit 1211 is, and conversely, the farther the grinding wheel 200 is relative to the air pressure distance measuring unit 1211, the smaller the pressure detected by the air pressure distance measuring unit 1211 is, so that the distance of the current grinding wheel 200 relative to the distance measuring unit 121 can be determined by the detected air pressure.

Preferably, the air pressure distance measuring unit 1211 is disposed on the mounting seat 111, and the air supply pipeline 1212 is disposed in the mounting seat 111. On the one hand, the appearance of the grinding wheel dressing device 100 is simple, on the other hand, the mounting seat 111 is used for protecting the air supply pipeline 1212, so that dust falling or physical impact on the air supply pipeline 1212 is avoided, and the air supply reliability of the driving assembly 122 is ensured.

In some embodiments, the laser ranging unit or the air ranging unit 1211 is disposed on the mounting base 111 and can move up and down relative to the mounting base 111.

It can be understood that the grinding wheel 200 may not be lower than the laser distance measuring element or the air pressure distance measuring element 1211 during the operation process, otherwise, collision may occur, which may cause damage, and therefore, the position of the laser distance measuring element or the air pressure distance measuring element 1211 determines the lowest position at which the grinding wheel 200 can move, and further determines the lower limit value of the knife gate gap.

In some embodiments, the grinding wheel 200 moves between the diamonds 112 and the knife roller assembly 300. The distance measuring unit is positioned at a position opposite to the motion track of the grinding wheel between the diamond and the knife roller component. In detail, the diamond 112 has opposite sides, one of which faces the knife roll assembly 300, and the distance measuring unit 121 is located at a side of the diamond 112 facing the knife roll assembly 300.

Thus, the distance measuring unit 121 is located at the position of the knife roll assembly 300 and the diamond 112, that is, the distance measuring unit 121 is located in the working path of the grinding wheel 200, and it is possible to measure the distance during the operation of the grinding wheel 200 without controlling the grinding wheel 200 to move to the position of the distance measuring unit 121, which is more important.

Wherein, on the way of the grinding wheel 200 running from the knife roller assembly 300 to the diamond 112, the distance measuring element can measure the distance of the grinding wheel 200 in the wear state, thereby determining the wear condition of the grinding wheel 200, and on the way of the grinding wheel 200 running from the diamond 112 to the knife roller assembly 300, the distance measuring element can measure the distance after grinding, thereby determining the current knife gate gap.

In some embodiments, the detection system further comprises a display unit, the display unit is connected with the control unit, and the display unit is used for displaying the current knife gate gap determined by the control unit.

The display unit can display the knife gate gap by displaying characters, numbers, images and the like.

The display unit displays the knife gate clearance, so that the worker can conveniently and quickly know the current knife gate clearance so as to correspondingly adjust according to the displayed result, the use experience is better,

preferably, the detection system further comprises an input unit, the input unit is connected with the control unit and the display unit, and the input system is used for inputting the target knife gate gap.

For example, the input unit is a key for increasing or decreasing numbers, when a worker needs to adjust the knife gate gap, the target knife gate gap may be input through the input unit, and the control unit controls the driving assembly 122 to operate to adjust the diamond 112 to the target knife gate gap after receiving the target knife gate gap.

More specifically, after receiving the target knife gate gap, the control unit calculates the distance from the target grinding wheel 200 to the ranging unit 121 according to the stored distance from the grinding wheel 200 to the ranging unit 121, the knife gate gap and the target knife gate gap, then controls the grinding wheel 200 to move to the position of the ranging unit 121, controls the grinding wheel 200 to move close to or away from the ranging unit 121, and controls the ranging unit 121 to perform real-time ranging until the distance measured by the ranging unit 121 reaches the calculated distance from the target grinding wheel 200 to the ranging unit 121, controls the grinding wheel 200 to keep the current distance from the ranging unit 121 unchanged, controls the grinding wheel 200 to move to the position of the diamond 112, controls the driving assembly 122 to work, enables the diamond 112 to drive the grinding wheel 200 to move relative to the driving assembly 122, and controls the driving assembly 122 to stop working until the diamond 112 contacts the grinding wheel 200, so that the diamond 112 keeps the current position, thereby completing the adjustment, and the adjusted knife gate gap is the target knife gate gap.

Embodiments of the second aspect of the present invention further provide a tobacco cutter, including: the grinding wheel dressing apparatus 100 according to any one of the above aspects; a knife roller assembly 300; a grinding wheel 200 assembly having a grinding wheel 200, the grinding wheel 200 moving between the knife roll assembly 300 and the diamonds 112 of the grinding wheel truing device 100.

The embodiment of the third aspect of the invention further provides a control method of the shredder, which is applicable to the shredder and comprises the following steps:

s101: acquiring the corresponding relation between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap;

s102: controlling the grinding wheel 200 to move between the knife roll assembly 300 and the diamond 112, and detecting the distance from the current grinding wheel 200 to the distance measuring unit 121;

s103: and determining the current knife gate gap according to the corresponding relation and the detected distance from the current grinding wheel 200 to the distance measuring unit 121.

Further, after step S103, the method further includes:

acquiring a target knife gate gap;

and controlling the driving assembly 122 to work according to the corresponding relation, the target knife gate gap and the current knife gate gap so as to adjust the diamond 112, so that the adjusted knife gate gap meets the target knife gate gap.

Further, the control method further comprises an initial adjustment step, wherein the initial adjustment step specifically comprises the following steps:

controlling the diamond 112 to move below the distance measuring unit 121;

controlling the grinding wheel 200 to move above the distance measuring unit 121 and controlling the distance measuring unit 121 to detect the distance from the grinding wheel 200 to the distance measuring unit 121, and recording the detected distance as an initial distance;

controlling the grinding wheel 200 to move above the diamond 112 and controlling the diamond 112 to move towards the grinding wheel 200 until the diamond 112 contacts the grinding wheel 200;

controlling the grinding wheel 200 to move to the knife roller assembly 300 and controlling the grinding wheel 200 to grind the blade of the knife roller assembly 300;

acquiring a knife gate gap of the grinded blade and recording the knife gate gap as an initial knife gate gap;

and determining and storing the corresponding relation between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap according to the initial distance and the initial knife gate gap.

Description of a specific embodiment

The embodiment relates to a novel knife gate gap online detection and adjustment device, which is an innovation of adjusting and setting a grinding wheel 200 diamond 112 of a filament cutter in a tobacco filament production line, and the automatic adjustment of the position of the diamond 112 is realized by adopting an automatic detection and adjustment mode, so that the trimming length of a blade is changed, and the automatic adjustment of the knife gate gap is realized.

The novel wheel truing apparatus 100 includes an actuating system 110, a detection system, a drive system, and the like. The actuator system 110 is a diamond 112 dressing device body, which is installed in the space of the tool bit; the detection system consists of a detection device and a control unit, wherein the detection device is arranged on the execution system 110, and the control unit is integrated outside; the actuating system 110 is adjusted by the driving system, so that the diamond 112 is lifted, and the purpose of adjusting the gap is further achieved.

The actuating system 110 is composed of a mounting seat 111, a diamond 112, a vibration sensor 124, a standard gauge block 123 and the like, wherein the mounting seat 111 is a frame structure of the system, other components are mounted on the mounting seat, the diamond 112 is a final actuating unit, the diamond 112 is used for dressing the grinding wheel 200, the vibration sensor 124 is used for detecting the dressing condition of the grinding wheel 200, and the standard gauge block 123 is used as a manual detection tool during initial adjustment.

The detection system is composed of a gas detection device and a control system, the gas detection device is driven by the control system, the gap distance of the grinding wheel 200 is detected by air pressure in the using process of the detection device, and then the position between the diamond 112 and the grinding wheel 200 is determined according to the detection gap of the initial gauge block, so that a basis is provided for the rising or falling of the diamond 112.

The driving system is formed by combining a motor, a speed reducer 125 and a transmission system, the driving system transmits torque to adjust the lifting of the diamond 112, and correspondingly, the system is further integrated with a set of manual adjusting device 1223.

The embodiment has the positive effects that: by adopting the novel grinding wheel dressing device 100, the manual intervention can be reduced, the equipment downtime can be reduced, the automation and intelligence level of the equipment can be improved, the quality of the equipment can be improved, and the novel grinding wheel dressing device has a wide application prospect.

The novel grinding wheel dressing device 100 shown in fig. 1, 2, 3 and 4 comprises a mounting seat 111, a diamond 112, a vibration sensor 124, a standard gauge block 123, a driving motor, a speed reducer 125, a gas detection device (i.e., a gas pressure distance measuring unit 1211), a manual adjusting device 1223, a gas path system (i.e., a gas supply line 1212), a worm 12222, a turbine and the like. When the device is used, the device is integrally installed on the installation base 111, the diamond 112 trims the grinding wheel 200 in the reciprocating walking process of the grinding wheel 200, the trimming effect of the grinding wheel 200 is monitored by outputting reading of the vibration sensor 124 in the trimming process, the driving motor and the speed reducer 125 automatically lift the diamond 112 through the transmission of the worm 12222 and the worm wheel, and the gas detection device is supplied with gas through a gas path system and a groove of the installation base 111.

The automatic adjustment process of the wheel truing apparatus 100 is: initially adjusting the position of diamond 112 by standard gauge 123 to ensure it is below the level of the gas detection apparatus, and then removing standard gauge 123; when the grinding wheel 200 rotates above the gas detection device, the control system is started, gas flows upwards through the gas detection device, then the grinding wheel 200 descends to be close to the gas detection device, the back pressure rises after the gas detection device is shielded by the grinding wheel 200, the control system can sense pressure change, and the current distance can be detected; when the height of the grinding wheel 200 reaches a set value, the feeding of the grinding wheel 200 is stopped, then the grinding wheel 200 moves to a position right above the diamond 112, and the driving motor and the speed reducer 125 lift the diamond 112 through the transmission of the worm 12222 and the worm wheel until the driving motor stops moving after the contact occurs; after the position adjustment of the diamond 112 is completed, the grinding wheel 200 grinds the blade. In the subsequent knife sharpening and knife gate gap detection, the lifting of the diamond 112 can be adjusted according to the detected knife gate gap, so that the height position of the grinding wheel 200 is trimmed, the extension amount of the blade is changed finally, and the automatic detection and adjustment of the knife gate gap are realized. The height of the air detection device is important and determines the limit of the knife gate clearance, so that its initial installation position is adjustable.

The embodiment has the following advantages:

the novel knife gate gap on-line detection and adjustment device comprises an execution system 110, a detection system, a driving system and the like. The novel grinding wheel dressing device 100 can realize the lifting of the diamond 112 and the detection of the gap, and further can realize the automatic detection and adjustment of the knife gate gap.

The lifting action of the diamond 112 is realized by a driving system without manual intervention, and the driving system can memorize or output a lifting difference value and is provided with a manual regulation function.

The device integrates a detection system, and the position of the grinding wheel 200 is detected through a gas detection device.

The gas detection device detects the position of the grinding wheel 200, and after the position of the grinding wheel 200 is adjusted, the position of the diamond 112 can be lifted by using the position of the grinding wheel 200 as a reference through the driving system, so that the current position of the diamond 112 is obtained.

After the current position of the diamond 112 is adjusted and obtained, the relationship between the knife gate gap and the current position of the gas detection device can be obtained, and the knife gate gap value can be obtained by detecting the position of the grinding wheel 200 by the gas detection device.

Under the condition that the current knife gate gap is detected, the position of the diamond 112 can be automatically adjusted through lifting by the driving system, and then the on-line adjustment of the knife gate gap is realized.

This embodiment adopts automated inspection and control technique through the design of a novel device, realizes need not to get into equipment tool bit space, accomplishes on line the detection and the adjustment to diamond 112 position and sword door clearance, realizes sword door clearance on-line measuring and adjustment, reduces the manual work volume, and lifting means is automatic and intelligent level.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims (10)

1. A wheel dresser characterized by comprising:

the diamond is arranged on the mounting seat and can move relative to the mounting seat, and the diamond is used for correcting the grinding wheel when the grinding wheel moves to the position where the diamond is located;

the detection system comprises a distance measurement unit and a control unit, wherein the control unit is connected with the distance measurement unit and the execution system, and controls the distance measurement unit to detect the distance from the grinding wheel to the distance measurement unit when the grinding wheel moves to the position where the distance measurement unit is located, and determines the current knife gate gap according to the detection result, the stored corresponding relation between the distance from the grinding wheel to the distance measurement unit and the knife gate gap.

2. The wheel truing apparatus according to claim 1,

the execution system further comprises a driving assembly, the driving assembly is arranged on the mounting seat and connected with the diamond, and the control unit is connected with the driving assembly and controls the diamond to move to a position corresponding to a target knife gate gap;

preferably, the driving assembly comprises a driving member and a transmission member, wherein the transmission member is connected with the diamond, and the driving member is connected with the transmission member and is suitable for driving the diamond to move by driving the transmission member;

more preferably, the driving part is a motor, the driving part is a worm wheel and a worm, the worm is arranged on an output shaft of the motor, and the worm wheel is meshed with the worm and connected with the diamond.

3. The wheel truing apparatus according to claim 1 or 2,

the distance measuring unit is a laser distance measuring piece or comprises an air pressure distance measuring piece and an air supply pipeline, the air supply pipeline is communicated with the air pressure distance measuring piece and is suitable for supplying air to the air pressure distance measuring piece, and the air pressure distance measuring piece is suitable for exhausting air outwards and measuring distance according to air pressure change;

preferably, the air pressure distance measuring piece is arranged on the mounting seat, and the air supply pipeline is arranged in the mounting seat.

4. The wheel truing apparatus according to claim 3,

the laser ranging piece or the air pressure ranging piece is arranged on the mounting seat and can move up and down relative to the mounting seat.

5. The wheel truing apparatus according to claim 1 or 2,

the grinding wheel moves between the diamond and the knife roller component, and the distance measuring unit is located at a position where the movement track of the grinding wheel between the diamond and the knife roller component is opposite.

6. The wheel dresser of claim 1 or 2, wherein the inspection system further comprises:

the display unit is connected with the control unit and is used for displaying the current knife gate gap determined by the control unit;

preferably, the detection system further comprises an input unit, the input unit is connected with the control unit and the display unit, and the input system is used for inputting the target knife gate gap.

7. A shredder, comprising:

the wheel truing apparatus according to any one of claims 1 to 6;

a knife roller assembly;

and the grinding wheel assembly is provided with a grinding wheel, and the grinding wheel moves between the knife roller assembly and the diamond of the grinding wheel dressing device.

8. A control method of a filament cutter adapted to the filament cutter of claim 7, comprising the steps of:

s101: acquiring the corresponding relation between the distance from the grinding wheel to the distance measuring unit and the knife gate gap;

s102: controlling the grinding wheel to move between the knife roll assembly and the diamond, and detecting the distance from the current grinding wheel to the distance measuring unit;

s103: and determining the current knife gate gap according to the corresponding relation and the detected distance from the current grinding wheel to the distance measuring unit.

9. The control method of the filament cutter according to claim 7 or 8, further comprising, after the step S103:

acquiring a target knife gate gap;

and controlling a driving assembly to work according to the corresponding relation, the target knife gate gap and the current knife gate gap so as to adjust the diamond, so that the adjusted knife gate gap meets the target knife gate gap.

10. The method for controlling the grinding wheel dressing apparatus according to claim 7 or 8, characterized in that the method further comprises an initial adjustment step, and the initial adjustment step specifically comprises:

controlling the diamond to move to the lower part of the distance measuring unit;

controlling the grinding wheel to move above the distance measuring unit, controlling the distance measuring unit to detect the distance from the grinding wheel to the distance measuring unit, and recording the detected distance as an initial distance;

controlling a grinding wheel to move above the diamond and controlling the diamond to move towards the grinding wheel until the diamond contacts the grinding wheel;

controlling the grinding wheel to move to the knife roller assembly and controlling the grinding wheel to grind the blade of the knife roller assembly;

acquiring the knife gate gap of the grinded blade and recording the knife gate gap as an initial knife gate gap;

and determining and storing the corresponding relation between the distance from the grinding wheel to the distance measuring unit and the knife gate gap according to the initial distance and the initial knife gate gap.

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