Grinding wheel dressing device, wire cutting machine and wire cutting machine control method

Abstract

The present invention provides a grinding wheel dressing device, a wire cutter and a control method for the wire cutter. The grinding wheel dressing device includes: an execution system, including 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 to correct the grinding wheel when the grinding wheel moves to the position where the diamond is located; a detection system, including a distance measuring unit and a control unit, the control unit is connected with the distance measuring unit and the execution system, 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 where the distance measuring unit is located, and determines the current knife door gap according to the detection result and the stored correspondence between the distance from the grinding wheel to the distance measuring unit and the knife door gap. The present invention can obtain the current knife door gap at any time, eliminating the trouble of the user stopping the machine to manually measure the gap, and realizing automatic measurement without stopping work, and the measurement error is small and the accuracy is high.

Description

Technical Field

[0001] The invention belongs to the field of wire cutters, and in particular relates to a grinding wheel dressing device, a wire cutter and a control method for the wire cutter. Background Art

[0002] At present, tobacco cutters used in tobacco industry at home and abroad mostly use grinding wheels to grind blades. The grinding wheels are trimmed with diamonds during use to ensure the cleanliness of the grinding wheels and the grinding effect. At the same time, the grinding position of the diamond directly determines the extension of the cutting blade and the knife gate gap during the cutting process. The knife gate gap is a key factor in determining the quality of the cutting. Therefore, in order to ensure the quality of the cutting, the process of adjusting the knife gate gap often requires timely manual adjustment of the diamond position. The most widely used method is to manually adjust the position of the diamond screw in the form of threaded engagement, and it is necessary to stop the equipment and enter the cutter head space to take manual execution.

[0003] However, this method requires the machine to be shut down before manual adjustments can be made by staff. On the one hand, this causes delays in task generation, resulting in damage to economic benefits. On the other hand, the staff's operation is relatively cumbersome, the adjustment accuracy is low, and the error is large.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a grinding wheel dressing device, a wire cutter and a control method for a wire cutter. The grinding wheel dressing device of the present invention can easily obtain the current knife gate clearance, eliminating the trouble of manual measurement.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides a grinding wheel dressing device, comprising:

[0008] An execution system, comprising a mounting seat and a diamond, wherein the diamond is arranged on the mounting seat and can move relative to the mounting seat, and the diamond is used to correct the grinding wheel when the grinding wheel moves to the position where the diamond is located;

[0009] The detection system includes a distance measuring unit and a control unit, wherein the control unit is connected to the distance measuring unit and the execution system, and 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 correspondence between the distance from the grinding wheel to the distance measuring unit and the knife gate gap.

[0010] In the above technical solution, the execution system further includes a driving component, which is arranged on the mounting seat and connected to the diamond, and the control unit is connected to the driving component and controls the diamond to move to a position corresponding to the target knife gate gap;

[0011] Preferably, the driving assembly comprises a driving member and a transmission member, the transmission member is connected to the diamond, and the driving member is connected to the transmission member and is suitable for driving the diamond to move by driving the transmission member;

[0012] More preferably, the driving member is a motor, the transmission member is a worm wheel and a worm, the worm is arranged on the output shaft of the motor, and the worm wheel is meshed with the worm and connected to the diamond.

[0013] In any of the above technical solutions, the distance measuring unit is a laser distance measuring component or the distance measuring unit includes a pneumatic distance measuring component and an air supply pipeline, the air supply pipeline is connected to the pneumatic distance measuring component and is suitable for supplying air to the pneumatic distance measuring component, and the pneumatic distance measuring component is suitable for exhausting air to the outside and measuring distance according to the change of air pressure;

[0014] Preferably, the air pressure ranging component is arranged on the mounting seat, and the air supply pipeline is arranged in the mounting seat.

[0015] In any of the above technical solutions, the laser distance measuring component or the air pressure distance measuring component is arranged on the mounting seat and can move up and down relative to the mounting seat.

[0016] In any of the above technical solutions, the grinding wheel moves between the diamond and the cutter roller assembly, and the distance measuring unit is located at a position relative to the movement trajectory of the grinding wheel between the diamond and the cutter roller assembly.

[0017] In any of the above technical solutions, the detection system further includes:

[0018] A display unit connected to the control unit, the display unit being used to display the current knife door gap determined by the control unit;

[0019] Preferably, the detection system further comprises an input unit, wherein the input unit is connected to the control unit and the display unit, and the input system is used to input a target knife door gap.

[0020] The present invention also provides a slicing machine, comprising:

[0021] A grinding wheel dressing device as described in any one of the above technical solutions;

[0022] Knife roller assembly;

[0023] The grinding wheel assembly comprises a grinding wheel, and the grinding wheel moves between the cutter roller assembly and the diamond of the grinding wheel dressing device.

[0024] The present invention also provides a control method for a wire cutter, which is applicable to the above-mentioned wire cutter and comprises the following steps:

[0025] S101: Acquire the corresponding relationship between the distance from the grinding wheel to the distance measuring unit and the knife door gap;

[0026] S102: Control the grinding wheel to move between the cutter roller assembly and the diamond, and detect the distance from the current grinding wheel to the distance measuring unit;

[0027] S103: Determine the current knife door gap according to the corresponding relationship and the detected distance from the current grinding wheel to the distance measuring unit.

[0028] In any of the above technical solutions, after step S103, the method further includes:

[0029] Get the target knife-gate clearance;

[0030] According to the corresponding relationship, the target knife gate gap and the current knife gate gap, the driving component is controlled to adjust the diamond so that the adjusted knife gate gap meets the target knife gate gap.

[0031] In any of the above technical solutions, the control method further includes an initial adjustment step, and the initial adjustment step specifically includes:

[0032] Control the diamond to move to the bottom of the distance measuring unit;

[0033] Control the grinding wheel to move to the top of the distance measuring unit and control the distance measuring unit to detect the distance from the grinding wheel to the distance measuring unit, and record the detected distance as the initial distance;

[0034] Controlling the grinding wheel to move above the diamond and controlling the diamond to move toward the grinding wheel until the diamond contacts the grinding wheel;

[0035] 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;

[0036] Obtain the knife-gate clearance of the blade after grinding and record it as the initial knife-gate clearance;

[0037] The corresponding relationship between the distance from the grinding wheel to the distance measuring unit and the knife gate gap is determined and stored according to the initial distance and the initial knife gate gap.

[0038] The present invention pre-stores the corresponding relationship between the distance from the grinding wheel to the distance measuring unit and the knife gate gap, that is, the pre-stored corresponding relationship between the position of the diamond and the knife gate gap, and the distance measuring unit can 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. Since the position of the distance measuring unit relative to the diamond is relatively fixed, the current knife gate gap can be obtained at any time, which saves the trouble of users stopping the machine to manually measure the gap, and realizes automatic measurement without stopping work, and the measurement error is small and the accuracy is high.

[0039] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0041] Figure 1 is a three-dimensional structural schematic diagram of a grinding wheel dressing device in an embodiment of the present invention;

[0042] Figure 2 is another three-dimensional structural schematic diagram of the grinding wheel dressing device in an embodiment of the present invention;

[0043] Figure 3 is a schematic cross-sectional structural diagram of a grinding wheel dressing device in an embodiment of the present invention;

[0044] Figure 4 It is a schematic structural diagram of a grinding wheel dressing device, a grinding wheel and a knife roller assembly in an embodiment of the present invention.

[0045] In the figure: 100, grinding wheel dressing device;

[0046] 110. execution system; 111. mounting seat; 112. diamond;

[0047] 121. distance measuring unit; 1211. air pressure distance measuring component; 1212. air supply pipeline;

[0048] 122, driving assembly; 1221, driving member; 1222, transmission member; 12221, worm; 12222, worm wheel; 1223, manual adjustment device; 123, standard gauge block; 124, vibration sensor; 125, reducer;

[0049] 200, grinding wheel;

[0050] 300. Knife roller assembly.

[0051] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The following describes the grinding wheel dressing device 100, the wire cutter and the control method of the wire cutter according to some embodiments of the present invention with reference to the accompanying drawings.

[0056] The embodiment of the first aspect of the present invention provides a grinding wheel dressing device 100. The grinding wheel dressing device 100 is applicable to a shredder, and in particular to a tobacco shredder. For example, the shredder includes a knife roller assembly 300, a grinding wheel 200 assembly, and a grinding wheel dressing device 100, wherein the knife roller assembly 300 includes at least a knife roller and a motor for driving the knife roller to rotate, wherein a plurality of extendable blades are provided on the knife roller, and the motor drives the knife roller to rotate so that the blades sequentially cut items such as tobacco. The grinding wheel 200 assembly includes at least a grinding wheel 200 and a motor for driving the grinding wheel 200 to move, wherein the motor drives the grinding wheel 200 so that the grinding wheel 200 can move between the knife roller assembly 300 and the grinding wheel dressing device 100. When the grinding wheel 200 is 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 the blade on the knife roller, which not only ensures the sharpness of the blade, but also keeps the extended length of the blade consistent, thereby ensuring the consistency of the knife gate gap; when the grinding wheel 200 is 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 corrected by the diamond 112 on the grinding wheel dressing device 100, which not only cleans the surface of the grinding wheel 200, but also helps to maintain the consistency of the grinding trajectory of the grinding wheel 200 relative to the blade.

[0057] The grinding wheel dressing device 100 provided in the embodiment of the present invention includes an execution system 110 and a detection system.

[0058] Specifically, the execution system 110 includes a mounting seat 111 and a diamond 112. The diamond 112 is disposed on the mounting seat 111 and can move relative to the mounting seat 111. The diamond 112 is used to correct the grinding wheel 200 when the grinding wheel 200 moves to the position of the diamond 112. The mounting seat 111 is used to fix the diamond 112. The diamond 112 can be raised or lowered relative to the mounting seat 111, thereby adjusting the grinding trajectory of the grinding wheel 200.

[0059] In detail, when the diamond 112 remains in position, when the grinding wheel 200 moves to the position of the knife roller assembly 300 again after being corrected by the diamond 112, its grinding trajectory also remains consistent, so that the extended length of the blade is also consistent, and the distance from the blade to the knife gate, that is, the knife gate gap, also remains consistent. When the diamond 112 is raised or lowered, the grinding trajectory of the grinding wheel 200 is also raised or lowered accordingly after being corrected by the diamond 112, so that the extended length of the blade is also correspondingly increased or shortened, so that the knife gate gap is correspondingly reduced or increased, that is, the position of the diamond 112, the grinding trajectory of the grinding wheel 200, and the knife gate gap are in a corresponding relationship with each other.

[0060] The detection system includes a distance measuring unit 121 and a control unit, and the control unit is connected to the distance measuring unit 121 and the execution system 110. In more detail, the control unit is connected to the distance measuring unit 121 and the execution system 110 by wire or by wireless. For example, the control unit is electrically connected to the distance measuring unit 121 and the execution system 110, respectively, so that the control unit can send a control signal to the distance measuring unit 121 and the execution system 110.

[0061] The distance measuring unit 121 is used to measure the distance between the object and the distance measuring unit 121. In this embodiment, the distance measuring unit 121 is used to measure 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 (for example, the grinding wheel 200 moves to the top of the distance measuring unit 121).

[0062] 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 of the distance measuring unit 121, and determines the current knife gate gap according to the detection result and the stored correspondence between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap.

[0063] The position of the distance measuring unit 121 is relatively fixed, and it remains stationary after the user completes the initial use and debugging. When the grinding wheel 200 moves to the position of the distance measuring unit 121, the control unit controls the distance measuring unit 121 to detect, thereby obtaining the distance A between the grinding wheel 200 and the distance measuring unit 121. Then, the current knife door gap H is determined based on the corresponding relationship between the distance a from the grinding wheel 200 to the distance measuring unit 121 and the knife door gap h stored in the system. In more detail, H=A / (a / h).

[0064] Regarding the correspondence between the distance between the grinding wheel 200 and the distance measuring unit 121 and the knife door gap, for example, during the initial use and debugging stage of the user, the sticker method can be used to obtain the initial knife door 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 between the grinding wheel 200 and the distance measuring unit 121 under the knife door gap, thereby obtaining the correspondence between the distance a between the grinding wheel 200 and the distance measuring unit 121 and the knife door gap h. The detailed steps are as follows:

[0065] During the debugging stage, select a blade at random and evenly stick paper strips of equal thickness on both sides of the knife. At the same time, apply red lead powder on the knife door and turn the knife roller to observe whether there are marks of red lead powder on the sticker. If not, continue to thicken the sticker until a red mark appears on the sticker.

[0066] After the red mark appears, measure the thickness of all current papers, and the measured thickness is the current knife door gap.

[0067] Adjust the grinding wheel 200, rotate the knife roller by hand to rotate the adjusted blade to the position of the grinding wheel 200, and manually feed the grinding wheel 200 downwards so that the grinding wheel 200 and the blade touch lightly. Then, with the grinding wheel 200 as the reference, shake the other blades in turn until they touch lightly with the grinding wheel 200.

[0068] The diamond 112 is adjusted, and the grinding wheel 200 is also used as a reference, and the diamond 112 is adjusted to lightly touch the grinding wheel 200.

[0069] The distance from the grinding wheel 200 to the distance measuring unit 121 is detected with the grinding wheel 200 as a reference, and the corresponding relationship between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife door gap is obtained.

[0070] The present invention pre-stores the correspondence between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife door gap, that is, the pre-stored correspondence between the position of the diamond 112 and the knife door gap, and the distance measuring unit 121 can detect the distance from the grinding wheel 200 to the distance measuring unit 121 when the grinding wheel 200 moves to the position of the distance measuring unit 121. Since the position of the distance measuring unit 121 relative to the diamond 112 is relatively fixed, the current knife door gap can be obtained at any time, eliminating the trouble of the user stopping the machine to manually measure the gap, and realizing automatic measurement without stopping work, and the measurement error is small and the accuracy is high.

[0071] The adjustment of the diamond 112 provided by the present invention may be manual or automatic.

[0072] In some embodiments, in order to further enhance the automation of the product, the execution system 110 is configured to further include a drive assembly 122, which is disposed on the mounting seat 111 and connected to the diamond 112. The control unit is connected to the drive assembly 122 and controls the diamond 112 to move to a position corresponding to the target knife door gap. The drive assembly 122 drives the diamond 112 to move so as to adjust the position of the diamond 112. In addition, in combination with the current gap detected above, the drive assembly 122 can be controlled to work so that the diamond 112 accurately moves to the target position, thereby achieving the target knife door gap. The entire set of equipment, from detecting the knife door gap to adjusting the knife door gap, is fully unmanned and intelligent, and can also adjust the knife door gap without stopping the machine, providing a better product experience.

[0073] Preferably, the driving assembly 122 includes a driving member 1221 and a transmission member 1222, the transmission member 1222 is connected to the diamond 112, and the driving member 1221 is connected to the transmission member 1222 and is suitable for driving the diamond 112 to move by driving the transmission member 1222. This has a simple structure, low cost, and reliable driving.

[0074] For example, the driving member 1221 is a motor, and the transmission member 1222 is a worm wheel 12221 and a worm 12222. The worm 12221 is arranged on the output shaft of the motor, and the worm wheel 12222 is meshed with the worm 12221 and connected to the diamond 112. In this way, the motor works so that its output shaft rotates, and the rotation of the output shaft drives the worm 12221 thereon to rotate, and the rotation of the worm 12221 drives the worm wheel 12222 meshed therewith to move up and down, thereby driving the diamond 112 to move up and down, and then adjusting the knife door gap.

[0075] More preferably, the mounting seat 111 has a accommodating cavity, and the drive component 122 is located in the accommodating cavity, so that the drive component 122 is hidden. On the one hand, the simplicity of the appearance of the grinding wheel dressing device 100 is ensured, and on the other hand, the mounting seat 111 is used to protect the drive component 122 to prevent the drive component 122 from dust or physical impact, thereby ensuring the working reliability of the drive component 122.

[0076] Of course, the above is only a preferred implementation of the drive component 122. Those skilled in the art can also design the drive component 122 into other structural forms according to specific usage requirements. For example, the drive component 122 includes a motor, a gear, and a rack.

[0077] In some embodiments, the distance measuring unit 121 is a laser distance measuring device, which has the advantages of simple structure and high detection accuracy.

[0078] In other embodiments, the distance measuring unit 121 includes an air pressure distance measuring element 1211 and an air supply pipeline 1212. The air supply pipeline 1212 is connected to the air pressure distance measuring element 1211 and is suitable for supplying air to the air pressure distance measuring element 1211. The air pressure distance measuring element 1211 is suitable for exhausting air to the outside and measuring distance according to changes in air pressure.

[0079] It can be understood that the pressure detected by the air pressure measuring component 1211 changes differently at different heights of the grinding wheel 200 relative to the air pressure measuring component 1211. In detail, the closer the grinding wheel 200 is to the air pressure measuring component 1211, the greater the pressure detected by the air pressure measuring component 1211. Conversely, the farther the grinding wheel 200 is from the air pressure measuring component 1211, the smaller the pressure detected by the air pressure measuring component 1211. The current distance of the grinding wheel 200 relative to the distance measuring unit 121 is determined by the detected air pressure.

[0080] More preferably, the air pressure distance measuring member 1211 is arranged on the mounting seat 111, and the air supply pipeline 1212 is arranged in the mounting seat 111. On the one hand, the appearance of the grinding wheel dressing device 100 is kept simple, and on the other hand, the mounting seat 111 is used to protect the air supply pipeline 1212, so as to prevent the air supply pipeline 1212 from being dusted or physically impacted, thereby ensuring the air supply reliability of the driving component 122.

[0081] In some embodiments, the laser distance measuring component or the air pressure distance measuring component 1211 is disposed on the mounting base 111 and can move up and down relative to the mounting base 111 .

[0082] It is understandable that the grinding wheel 200 cannot be lower than the laser distance measuring component or the air pressure distance measuring component 1211 during operation, otherwise a collision will occur and cause damage. Therefore, the position of the laser distance measuring component or the air pressure distance measuring component 1211 determines the lowest position to which the grinding wheel 200 can move, and further determines the lower limit of the knife gate gap. In this embodiment, the laser distance measuring component or the air pressure distance measuring component 1211 is arranged to be able to move up and down relatively, so that the laser distance measuring component or the air pressure distance measuring component 1211 is more flexible and changeable, and its position can be adjusted according to specific usage requirements, thereby expanding the settable range of the knife gate gap, and further realizing that the product can flexibly respond to various usage requirements.

[0083] In some embodiments, the grinding wheel 200 moves between the diamond 112 and the cutter roller assembly 300. The distance measuring unit is located at a position relative to the movement track of the grinding wheel between the diamond and the cutter roller assembly. In detail, the diamond 112 has two opposite sides, one side of which faces the cutter roller assembly 300, and the distance measuring unit 121 is located on the side of the diamond 112 facing the cutter roller assembly 300.

[0084] In this way, the distance measuring unit 121 is located at the position of the knife roller assembly 300 and the diamond 112, that is, the distance measuring unit 121 is located on the working path of the grinding wheel 200. It can measure the distance when the grinding wheel 200 is working, without controlling the grinding wheel 200 to move specifically to the position of the distance measuring unit 121, which is more convenient to control.

[0085] Among them, when the grinding wheel 200 runs from the knife roller assembly 300 to the diamond 112, the distance measuring element can measure the distance under the wear state of the grinding wheel 200, so as to determine the wear condition of the grinding wheel 200; when the grinding wheel 200 runs from the diamond 112 to the knife roller assembly 300, the distance measuring element can measure the distance after grinding, so as to determine the current knife gate gap.

[0086] In some embodiments, the detection system further includes a display unit, which is connected to the control unit, and the display unit is used to display the current knife door gap determined by the control unit.

[0087] The display unit can display the knife door gap by displaying text, numbers, images, etc.

[0088] The knife door gap is displayed by the display unit, which allows the staff to quickly know the current knife door gap so that they can make corresponding adjustments according to the displayed results, providing a better user experience.

[0089] More preferably, the detection system further comprises an input unit, which is connected to the control unit and the display unit, and the input system is used to input the target knife door gap.

[0090] For example, the input unit is a key for increasing or decreasing numbers. When the staff needs to adjust the knife gate gap, they can input the target knife gate gap through the input unit. After receiving the target knife gate gap, the control unit controls the drive assembly 122 to adjust the diamond 112 to the target knife gate gap.

[0091] In more detail, after receiving the target knife door gap, the control unit calculates the distance from the target grinding wheel 200 to the distance measuring unit 121 according to the stored distance from the grinding wheel 200 to the distance measuring unit 121, the knife door gap, and the target knife door gap, and then controls the grinding wheel 200 to move to the position of the distance measuring unit 121, controls the grinding wheel 200 to move closer to or away from the distance measuring unit 121, and controls the distance measuring unit 121 to measure the distance in real time until the distance measured by the distance measuring unit 121 reaches the calculated distance from the target grinding wheel 200 to the distance measuring unit 121. The distance between the distance measuring unit 121 and the grinding wheel 200 is controlled to keep the current distance relative to the distance measuring unit 121 unchanged, and the grinding wheel 200 is controlled to move to the position of the diamond 112, and the driving component 122 is controlled to work, so that the driving component 122 drives the diamond 112 to move relative to the grinding wheel 200 until the diamond 112 contacts the grinding wheel 200, and then the driving component 122 is controlled to stop working, so that the diamond 112 maintains the current position, thereby completing the adjustment, and the knife gate gap after adjustment is the target knife gate gap.

[0092] The second aspect of the present invention also provides a wire cutting machine, comprising: a grinding wheel dressing device 100 as described in any of the above technical solutions; a knife roller assembly 300; a grinding wheel 200 assembly, having a grinding wheel 200, and the grinding wheel 200 moves between the knife roller assembly 300 and the diamond 112 of the grinding wheel dressing device 100.

[0093] The third aspect of the present invention also provides a control method for a slicing machine, which is applicable to the above-mentioned slicing machine and comprises the following steps:

[0094] S101: Obtaining the correspondence between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife door gap;

[0095] S102: Control the grinding wheel 200 to move between the knife roller assembly 300 and the diamond 112, and detect the current distance from the grinding wheel 200 to the distance measuring unit 121;

[0096] S103: Determine the current knife door gap according to the corresponding relationship and the detected distance from the current grinding wheel 200 to the distance measuring unit 121.

[0097] Furthermore, after step S103, the method further includes:

[0098] Get the target knife-gate clearance;

[0099] According to the corresponding relationship, the target knife gate gap and the current knife gate gap, the driving assembly 122 is controlled to work to adjust the diamond 112 so that the adjusted knife gate gap meets the target knife gate gap.

[0100] Furthermore, the control method further includes an initial adjustment step, which specifically includes:

[0101] Control the diamond 112 to move below the distance measuring unit 121;

[0102] Control the grinding wheel 200 to move to the top of the distance measuring unit 121 and control the distance measuring unit 121 to detect the distance from the grinding wheel 200 to the distance measuring unit 121, and record the detected distance as the initial distance;

[0103] Control the grinding wheel 200 to move above the diamond 112 and control the diamond 112 to move toward the grinding wheel 200 until the diamond 112 contacts the grinding wheel 200;

[0104] Control the grinding wheel 200 to move to the knife roller assembly 300 and control the grinding wheel 200 to grind the blade of the knife roller assembly 300;

[0105] Obtain the knife-gate clearance of the blade after grinding and record it as the initial knife-gate clearance;

[0106] The corresponding relationship between the distance from the grinding wheel 200 to the distance measuring unit 121 and the knife gate gap is determined and stored according to the initial distance and the initial knife gate gap.

[0107] A specific embodiment

[0108] The present embodiment relates to a novel online detection and adjustment device for the knife gate gap, which is an invention innovation for adjusting the diamond 112 of the grinding wheel 200 of the shredder in the tobacco shredding production line. It adopts automatic detection and adjustment to realize automatic adjustment of the position of the diamond 112, thereby changing the trimming length of the blade and realizing automatic adjustment of the knife gate gap.

[0109] The novel grinding wheel dressing device 100 includes an execution system 110, a detection system, a drive system, etc. The execution system 110 is the main body of the diamond 112 dressing device, which is installed in the tool head space; the detection system is composed of a detection device and a control unit, the detection device is installed on the execution system 110, and the control unit is integrated outside; the drive system adjusts the execution system 110 to realize the lifting and lowering of the diamond 112, and further achieves the purpose of gap adjustment.

[0110] The execution system 110 is composed of a mounting base 111, a diamond 112, a vibration sensor 124, a standard gauge block 123, etc. The mounting base 111 is the frame structure of the system, and other components are mounted on it. The diamond 112 is the final execution unit, which is used to dress the grinding wheel 200. The vibration sensor 124 detects the dressing condition of the grinding wheel 200. The standard gauge block 123 is used as a manual detection tool during initial adjustment.

[0111] The detection system is composed of an air detection device and a control system. The air detection device is driven by the control system. During use, the detection device detects the gap distance of the grinding wheel 200 through air pressure, and then determines the position between the diamond 112 and the grinding wheel 200 based on the detection gap of the initial gauge block, thereby providing a basis for the rise or fall of the diamond 112.

[0112] The driving system is composed of a motor, a reducer 125 and a transmission system, which transmits torque to adjust the lifting of the diamond 112. Correspondingly, this system is also integrated with a set of manual adjustment devices 1223.

[0113] The positive effect of this embodiment is that the use of the new grinding wheel dressing device 100 can reduce manual intervention, reduce equipment downtime, improve the level of equipment automation and intelligence, and improve equipment quality, and has great application prospects.

[0114] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The new grinding wheel dressing device 100 shown includes a mounting seat 111, a diamond 112, a vibration sensor 124, a standard gauge block 123, a drive motor, a reducer 125, a gas detection device (i.e., a gas pressure distance measuring piece 1211), a manual adjustment device 1223, a gas circuit system (i.e., a gas supply pipeline 1212), a worm 12222, a turbine, etc. When the device is in use, the above-mentioned device is integrated and installed on the mounting seat 111, and the diamond 112 dresses the grinding wheel 200 during the reciprocating movement of the grinding wheel 200. During the dressing process, the vibration sensor 124 monitors the dressing effect of the grinding wheel 200 by outputting readings, and the drive motor and the reducer 125 automatically lift and lower the diamond 112 through the transmission of the worm 12222 and the turbine, and the gas circuit system and the groove of the mounting seat 111 supply gas to the gas detection device.

[0115] The automatic adjustment process of the grinding wheel dressing device 100 is as follows: the position of the diamond 112 is initially adjusted through the standard gauge block 123 to ensure that it is below the level of the gas detection device, and then the standard gauge block 123 can be removed; when the grinding wheel 200 rotates above the gas detection device, the control system is turned on, the gas flows upward through the gas detection device, and then the grinding wheel 200 descends and approaches the gas detection device. After the gas detection device is blocked by the grinding wheel 200, the back pressure will increase, and the control system can sense the pressure change and detect the current distance; when the height of the grinding wheel 200 reaches the set value, the feeding of the grinding wheel 200 is stopped, and then the grinding wheel 200 moves to the top of the diamond 112, and the drive motor and reducer 125 lift the diamond 112 through the transmission of the worm 12222 and the turbine until the drive motor stops moving after contact occurs; after the position adjustment of the diamond 112 is completed, the grinding wheel 200 grinds the blade. In the subsequent sharpening and knife-door clearance detection, the diamond 112 can be adjusted according to the detected knife-door clearance, and then the height of the grinding wheel 200 can be adjusted, which will eventually change the blade extension and realize the automatic detection and adjustment of the knife-door clearance. The height of the gas detection device is very important and can determine the limit value of the knife-door clearance, so its initial installation position is adjustable.

[0116] This embodiment has the following advantages:

[0117] The novel online detection and adjustment device for the knife gate gap comprises an execution system 110, a detection system, a driving system, etc. It is a novel grinding wheel dressing device 100, which can realize the lifting and lowering of the diamond 112 and the detection of the gap, and further can realize the automatic detection and adjustment of the knife gate gap.

[0118] The lifting and lowering action of the diamond 112 is realized by the driving system without manual intervention. The driving system can memorize or output the difference between the lifting and lowering, and is also equipped with a manual adjustment function.

[0119] The device integrates a detection system and detects the position of the grinding wheel 200 through a gas detection device.

[0120] The gas detection device detects the position of the grinding wheel 200. After adjusting the position of the grinding wheel 200, the position of the diamond 112 can be raised or lowered by the driving system based on the position of the grinding wheel 200 to obtain the current position of the diamond 112.

[0121] After adjusting and obtaining the current position of the diamond 112, the relationship between the knife gate gap and the current position of the gas detection device can be obtained. The gas detection device detects the position of the grinding wheel 200 to obtain the knife gate gap value.

[0122] When the current knife gate gap condition is detected, the position of the diamond 112 can be automatically raised and lowered and adjusted through the driving system, thereby realizing online adjustment of the knife gate gap.

[0123] This embodiment adopts automatic detection and control technology through the design of a new device, so as to realize online detection and adjustment of the position of the diamond 112 and the knife door gap without entering the tool head space of the equipment, realize online detection and adjustment of the knife door gap, reduce the amount of manual work, and improve the automation and intelligence level of the equipment.

[0124] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, they are not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A wire cutting machine, comprising a grinding wheel dressing device, a knife roller assembly, and a grinding wheel, characterized in that: The grinding wheel dressing device includes: An execution system, comprising a mounting seat and a diamond, wherein the diamond is arranged on the mounting seat and can be raised or lowered relative to the mounting seat, and the diamond is used to dress the grinding wheel when the grinding wheel moves to the position where the diamond is located; The detection system comprises a distance measuring unit and a control unit, wherein the control unit is connected with the distance measuring unit and the execution system, wherein the control unit controls the diamond to move to the bottom of the distance measuring unit, controls the grinding wheel to move to the top of the distance measuring unit and controls the distance measuring unit to detect the distance from the grinding wheel to the distance measuring unit, records the detected distance as the initial distance, controls the grinding wheel to move to the top of the diamond and controls the diamond to move toward the grinding wheel until the diamond contacts the grinding wheel, controls the grinding wheel to move to the knife roller assembly and controls the grinding wheel to grind the blade of the knife roller assembly; obtains the knife gate gap of the blade after grinding and records it as the initial knife gate gap; determines and stores the corresponding relationship 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.

2. The shredder according to claim 1, characterized in that: The execution system further comprises a driving assembly, which is arranged on the mounting seat and connected to the diamond. The control unit is connected to the driving assembly and controls the diamond to move to a position corresponding to a target knife gate gap.

3. The shredder according to claim 2, characterized in that: The driving assembly comprises a driving member and a transmission member, wherein the transmission member is connected to the diamond, and the driving member is connected to the transmission member and is suitable for driving the diamond to move by driving the transmission member.

4. The shredder according to claim 3, characterized in that: The driving member is a motor, and the transmission member is a worm wheel and a worm. The worm is arranged on the output shaft of the motor, and the worm wheel is meshed with the worm and connected to the diamond. The output shaft of the motor rotates, driving the worm thereon to rotate. The rotation of the worm drives the worm wheel meshed therewith to move up and down, thereby driving the diamond to move up and down, and then adjusting the knife door gap.

5. The shredder according to any one of claims 1 to 4, characterized in that: The distance measuring unit is a laser distance measuring component or the distance measuring unit includes a pneumatic distance measuring component and an air supply pipeline, the air supply pipeline is connected to the pneumatic distance measuring component and is suitable for supplying air to the pneumatic distance measuring component, and the pneumatic distance measuring component is suitable for exhausting air to the outside and measuring distance according to changes in air pressure.

6. The shredder according to claim 5, characterized in that: The air pressure distance measuring component is arranged on the mounting seat, and the air supply pipeline is arranged in the mounting seat.

7. The shredder according to claim 6, characterized in that: The laser distance measuring component or the air pressure distance measuring component is arranged on the mounting seat and can move up and down relative to the mounting seat.

8. The shredder according to claim 1 or 2, characterized in that: The grinding wheel moves between the diamond and the cutter roller assembly, the diamond has two opposite sides, one side of which faces the cutter roller assembly, and the distance measuring unit is located on the side of the diamond facing the cutter roller assembly.

9. The shredder according to claim 1 or 2, characterized in that: The detection system further includes: a display unit connected to the control unit, and the display unit is used to display the current knife door gap determined by the control unit.

10. The shredder according to claim 9, characterized in that: The detection system further comprises an input unit, wherein the input unit is connected to the control unit and the display unit, and the input system is used to input a target knife gate gap.

11. A control method for a slicing machine, applicable to the slicing machine according to any one of claims 1 to 10, characterized in that: The following steps are involved: S101: Acquire the corresponding relationship between the distance from the grinding wheel to the distance measuring unit and the knife door gap; S102: Control the grinding wheel to move between the cutter roller assembly and the diamond, and detect the distance from the current grinding wheel to the distance measuring unit; S103: Determine the current knife door gap according to the corresponding relationship and the detected distance from the current grinding wheel to the distance measuring unit.

12. The control method of the shredder according to claim 11, characterized in that: After step S103, the method further includes: Get the target knife-gate clearance; According to the corresponding relationship, the target knife gate gap and the current knife gate gap, the driving component is controlled to adjust the diamond so that the adjusted knife gate gap meets the target knife gate gap.

13. The control method of the shredder according to claim 11, characterized in that: The initial adjustment step is also included, and the initial adjustment step specifically includes: Control the diamond to move to the bottom of the distance measuring unit; Control the grinding wheel to move to the top of the distance measuring unit and control the distance measuring unit to detect the distance from the grinding wheel to the distance measuring unit, and record the detected distance as the initial distance; Controlling the grinding wheel to move above the diamond and controlling the diamond to move toward 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; Obtain the knife-gate clearance of the blade after grinding and record it as the initial knife-gate clearance; The corresponding relationship between the distance from the grinding wheel to the distance measuring unit and the knife gate gap is determined and stored according to the initial distance and the initial knife gate gap.

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