A grinding and knife width measuring device for a fabric cutting apparatus

Abstract

The application provides a blade sharpening and width measuring device of a fabric cutting equipment, which comprises a bottom plate, a sliding table, a motor assembly, a transmission wheel assembly, a blade sharpening assembly, a driving assembly and a measuring assembly; a grinding wheel set is installed on the sliding table, the sliding table moves towards the direction of the cutter under the driving of the driving assembly, the grinding wheel set abuts against the cutter, the motor assembly starts the rotation of the grinding wheel set through the transmission wheel assembly, the measuring plate moves with the sliding table, the slope on the measuring plate moves with the sliding table, the distance between the slope and the sensor unit is close, when the grinding wheel set abuts against the blade edge, the distance between the slope and the sensor unit no longer changes, the sensor unit detects the distance at this time, and then the distance is converted into actual blade sharpening compensation data, so that the actual blade width data can be quickly obtained.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of fabric cutting, and particularly relates to a grinding device and a blade width measuring device of a fabric cutting device. BACKGROUND

[0002] In the industry of numerical control cutting bed, the most important part of a cutting bed is a cutting head part, and the most important part of the cutting head part is a grinding system. The cutting quality of fabric and the running speed of the cutting bed completely depend on whether the blade is sharp. The existing technology needs to frequently grind the system to ensure the sharpness of the blade. However, after the existing tool is ground, the blade edge gradually deviates towards the blade back, and the width of the blade gradually becomes smaller. At present, the same trade uses the previous grinding data to make an estimate, for example, how many times the grinding is performed, and how much the blade edge is laterally advanced to compensate. However, the grinding compensation needs to estimate the cutting fabric type, speed, lubrication degree, equipment itself and debugging personnel and other aspects in the production process, and the estimation result becomes extremely inaccurate. Due to the inaccuracy of the grinding compensation, it is difficult to estimate the overcutting amount of the fabric cut by the blade edge. Some cut too deep and cut other cutting pieces, resulting in damage to the tool. Some fabric overcutting amount is not enough, resulting in incomplete cutting of the fabric and the phenomenon of broken and connected, which affects the processing quality of the fabric and makes the experience of the user very poor. SUMMARY

[0003] In view of the deficiencies of the prior art, the application provides a grinding device and a blade width measuring device of a fabric cutting device to realize rapid and accurate detection of the actual blade width after each grinding.

[0004] To achieve the above-mentioned purpose, according to the first aspect of the embodiment of the application, a grinding device and a blade width measuring device of a fabric cutting device, comprising a bottom plate, a sliding table, a motor assembly, a transmission wheel assembly, a grinding assembly, a driving assembly and a measuring assembly; wherein the bottom plate is provided with a sliding rail, the sliding table is in sliding connection with the sliding rail, the motor assembly is arranged on the sliding table, the grinding assembly is arranged on the sliding table, the transmission wheel assembly is connected to the motor assembly and the grinding assembly respectively, the driving assembly is connected to the sliding table and the bottom plate at both ends, and the direction in which the grinding assembly moves towards the blade is the positive direction; the measuring assembly comprises a sensor unit and a measuring plate, the measuring plate is arranged on the side wall of the sliding table, an inclined slope is arranged on the end of the measuring plate in the opposite direction, the cross-sectional area of the inclined slope gradually increases in the opposite direction, the sensor unit is arranged on the bottom plate, and the detection surface of the sensor unit is arranged in parallel above the inclined slope; the grinding assembly comprises a fixed seat unit and a grinding wheel group, the fixed seat unit is arranged on the sliding table, and the grinding wheel group comprises two cylindrical grinding wheels arranged side by side on the fixed seat.

[0005] The grinding and knife width measuring device of the fabric cutting equipment has at least the following advantages: the grinding wheel set is installed on the sliding table, the sliding table moves towards the cutter under the driving of the driving assembly, the grinding wheel set abuts against the cutter, the motor assembly starts to rotate the grinding wheel set through the transmission wheel assembly to start the grinding, the measuring plate moves with the sliding table, the slope on the measuring plate moves with the sliding table, the distance between the slope and the sensor unit is close, when the grinding wheel set abuts against the cutting edge, the distance between the slope and the sensor unit no longer changes, the sensor unit detects the distance at this time, and the actual grinding compensation data is converted from the distance, so that the actual knife width data can be quickly obtained.

[0006] Preferably, the transmission wheel assembly comprises a driving wheel, a tension wheel, a driven wheel and a belt, the driving wheel is arranged on the output shaft of the motor assembly, the driven wheel is arranged at one end of the grinding wheel set, the belt is connected with the driving wheel and the driven wheel respectively, the tension wheel is arranged on both sides of the middle section of the belt, the tension wheel extrudes the belt to increase the tension of the belt, so that the belt cannot be separated from the driving wheel and the driven wheel, the friction between the belt and the driving wheel and the driven wheel is greatly improved, and the transmission efficiency of the motor to the grinding wheel set is improved.

[0007] Preferably, two sets of transmission wheel assemblies are arranged, the transmission wheel assemblies are connected with the two sides of the motor assembly respectively, and the transmission wheel assemblies are connected with a cylindrical grinding wheel respectively. Since the transmission wheel assemblies are connected with the output shafts of the two sides of the motor assembly, the two grinding wheels rotate in opposite directions, the cutting edge is prevented from being deviated by the grinding wheels rotating in the same direction, one motor can drive two grinding wheel sets, the number of motors is reduced, and the cost is reduced.

[0008] Preferably, the fixed seat unit comprises a steering mechanism, a mounting plate and a clamping seat, the steering mechanism is provided with a rotating rod and a bearing, the upper end of the rotating rod is connected with the bottom of the sliding table, the lower end of the rotating rod is connected with the bearing, the bearing is fixed on the mounting plate, the clamping seat is connected with one end of the mounting plate, the clamping seat fixes the grinding wheel set, and the rotating rod and the bearing can rotate relative to each other, that is, the mounting plate and the sliding table can rotate relative to each other, so that the user can conveniently adjust the angle of the grinding wheel set, and the grinding wheel set is prevented from colliding with the cutting edge under the driving of the driving element.

[0009] Preferably, the tail plate is arranged at the end of the mounting plate opposite to the clamping seat, the tail plate is provided with through holes on both sides, the bottom of the sliding table is provided with an adjusting frame, the position of the adjusting frame is matched with the position of the tail plate, the adjusting frame is provided with a first threaded hole corresponding to the position of the through hole, the diameter of the through hole is greater than the inner diameter of the first threaded hole, after the angle of the grinding wheel set is adjusted, the user fixes the mounting plate through the first threaded hole and the through hole by using a bolt, so that the grinding wheel set is prevented from being deviated by external force and colliding with the cutting edge during use.

[0010] Preferably, the installation plate is provided with a long slot at the connection position of the card seat, the long slot is through, and the card seat is slidably connected to the installation plate through the long slot.

[0011] Preferably, the installation plate is further provided with a transverse adjustment mechanism, the transverse adjustment mechanism is provided with a limiting jaw and an adjusting bolt, the limiting jaw extends from the installation plate to both sides of the card seat, the limiting jaw is provided with a second threaded hole, the second threaded hole is perpendicular to the card seat, and the adjusting bolt abuts against the side wall of the card seat through the second threaded hole. By rotating the adjusting bolt, the card seat can be transversely fine-adjusted, and the limiting effect of the adjusting bolts on both sides ensures that the card seat will not move after adjustment.

[0012] Preferably, the grinding wheel is provided with a grinding belt, the grinding belt is a plurality of convex annular rings arranged on the cylindrical side wall of the grinding wheel, the grinding belts of the two grinding wheels are mutually avoided and engaged, if the grinding wheel set is two cylindrical grinding wheels, there will be a gap between the two grinding wheels, which will cause the blade to be not polished well, and the use of the mutually engaged grinding wheel set can ensure that the blade is also polished well.

[0013] Preferably, the sensor unit adopts a high-precision photoelectric sensor to detect the distance from the slope to the sensor.

[0014] Preferably, the driving assembly is a pneumatic cylinder drive, which is beneficial to the adjustment of pressure, and the force of the pneumatic cylinder drive is adjusted by adjusting the air pressure, so as to change the pressure of the grinding wheel set on the blade. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0016] Figure 1 It is a whole structure diagram of the grinding and knife width measuring device of the fabric cutting equipment of the present application.

[0017] Figure 2 It is a front view of the grinding and knife width measuring device of the fabric cutting equipment of the present application.

[0018] Figure 3 It is an axial side view of the grinding and knife width measuring device of the fabric cutting equipment of the present application.

[0019] Figure 4 It is an axial side view of the grinding and knife width measuring device of the fabric cutting equipment of the present application after removing the connecting plate.

[0020] Figure 5 Figure 1 is a structural diagram of a grinding wheel set of a fabric cutting equipment's knife grinding and width measuring device of the present application;

[0021] Figure 6 Figure 2 is a measurement principle diagram of a fabric cutting equipment's knife grinding and width measuring device of the present application.

[0022] Reference signs

[0023] 100, bottom plate; 110, slide rail; 200, slide table; 210, measuring plate; 211, slope; 220, connecting plate; 300, driving assembly; 400, motor assembly; 410, driving wheel; 420, belt; 430, driven wheel; 440, tension wheel; 500, sensor unit; 510, photoelectric sensor; 600, grinding wheel set; 610, mounting plate; 611, limit claw; 612, adjusting bolt; 613, tail plate; 614, long slot; 620, rotating rod; 621, bearing; 630, clamping seat; 640, grinding belt; 700, knife. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Please refer to Figure 1 and Figure 6As shown, a kind of knife sharpening and knife width measuring device of fabric cutting equipment, including base plate 100, sliding table 200, motor assembly 400, transmission wheel assembly, knife sharpening assembly, drive assembly 300 and measuring assembly;Wherein, base plate 100 is equipped with slide rail 110, sliding table 200 and slide rail 110 are slidingly connected, motor assembly 400 is set on sliding table 200, knife sharpening assembly is set on sliding table 200, transmission wheel assembly is connected on motor assembly 400 and knife sharpening assembly respectively, drive assembly 300 two ends connect sliding table 200 and base plate 100, to the direction of knife sharpening assembly towards blade movement is positive direction;Measuring assembly includes sensor unit 500 and measuring plate 210, measuring plate 210 is set on the side wall of sliding table 200, the opposite end of measuring plate 210 is equipped with slope 211, the cross-sectional area of slope 211 gradually increases towards the opposite direction, sensor unit 500 is set on base plate 100, the detection surface of sensor unit 500 is parallelly arranged above slope 211;Knife sharpening assembly includes fixed seat unit and grinding wheel group 600, fixed seat unit is set on sliding table 200, grinding wheel group is two and is arranged side by side on the cylindrical grinding wheel of fixed seat;Grinding wheel group 600 is installed on sliding table 200, sliding table 200 is moved towards tool 700 direction under the drive of drive assembly 300, grinding wheel group 600 is abutted on tool 700, motor assembly 400 makes grinding wheel group 600 start rotating by transmission wheel assembly, starts to sharpen the knife, measuring plate 210 moves along with sliding table 200, slope 211 on measuring plate 210 moves along with sliding table 200, the distance between slope 211 and sensor unit 500 is close, when grinding wheel group 600 is abutted to blade edge, the distance between slope 211 and sensor unit 500 no longer changes, sensor unit 500 detects the distance at this time, then the distance is converted into actual knife sharpening compensation data, so that the actual knife width data can be quickly obtained.

[0028] It needs to be understood that the distance difference detected by sensor unit 500 and the knife width of tool 700 are linearly related, Figure 6 Wherein a is the distance detected by sensor unit 500, b is the distance of grinding wheel group 600 advancing, and c is the knife width.

[0029] It needs to be understood that slope 211 can be perpendicular to measuring plate 210, at this time the distance of a is equal to the distance of b, that is, the distance difference detected by sensor is equal to the numerical value of the decrease of knife width c.

[0030] Please refer to Figure 1 And Figure 6As shown in the preferred embodiment of the present application, the transmission wheel assembly includes a driving wheel 410, a tension wheel 440, a driven wheel 430 and a belt 420. The driving wheel 410 is arranged on the output shaft of the motor assembly 400. The driven wheel 430 is arranged at one end of the grinding wheel set 600. The belt 420 is connected to the driving wheel 410 and the driven wheel 430 respectively. The tension wheel 440 is connected to both sides of the middle section of the belt 420. The tension wheel 440 presses the belt 420 to increase the tension of the belt 420, ensuring that the belt 420 will not be separated from the driving wheel 410 and the driven wheel 430. This greatly improves the friction between the belt 420 and the driving wheel 410 and the driven wheel 430, and improves the transmission efficiency of the motor to the grinding wheel set 600.

[0031] Specifically, since the belt 420 is turned by 90° from the driving wheel 410 to the driven wheel 430, two tension wheels 440 on the same side are arranged on the sliding table 200. The inclined tension wheels 440 press the two belts 420 respectively to increase the tension of the belts 420, ensuring that the belts 420 will not be separated from the driving wheel 410 or the driven wheel 430 due to high-speed rotation.

[0032] Please refer to Figure 1 and Figure 6 As shown in the preferred embodiment of the present application, the transmission wheel assembly is provided with two sets, which are connected to the two sides of the motor assembly 400 respectively. The transmission wheel assembly is connected to a cylindrical grinding wheel. Since the transmission wheel assembly is connected to the output shaft of the motor assembly 400, the two grinding wheels rotate in opposite directions, avoiding the deflection of the blade by the grinding wheels rotating in the same direction. At the same time, a single motor can also drive two grinding wheel sets 600, reducing the number of motors and the cost.

[0033] Please refer to Figure 1 and Figure 6 As shown in the preferred embodiment of the present application, the fixed seat unit includes a steering mechanism, a mounting plate 610 and a clamping seat 630. The steering mechanism is provided with a rotating rod 620 and a bearing 621. The upper end of the rotating rod 620 is connected to the bottom of the sliding table 200. The lower end of the rotating rod 620 is connected to the bearing 621. The bearing 621 is fixed on the mounting plate 610. The clamping seat 630 is connected to one end of the mounting plate 610. The clamping seat 630 fixes the grinding wheel set 600. The rotating rod 620 and the bearing 621 can rotate relative to each other, i.e. the mounting plate 610 and the sliding table 200 can rotate relative to each other. This facilitates the user to adjust the angle of the grinding wheel set 600, avoiding the collision of the blade by the grinding wheel set 600 under the drive of the driving element.

[0034] Please refer to Figure 1 and Figure 6As shown, as a preferred embodiment of the present application, the tail plate 613 is provided at the end of the mounting plate 610 opposite to the card seat 630, and the tail plate 613 is provided with through holes on both sides. The bottom of the sliding table 200 is provided with an adjusting frame, and the position of the adjusting frame matches the position of the tail plate 613. The adjusting frame is provided with a first threaded hole corresponding to the position of the through hole. The diameter of the through hole is larger than the inner diameter of the first threaded hole. After adjusting the angle of the grinding wheel set 600, the user fixes the mounting plate 610 through the first threaded hole and the through hole by using a bolt, so as to avoid the situation that the grinding wheel set 600 is deflected due to external force and collides with the blade during use.

[0035] As shown in Figure 1 and Figure 6 As shown, as a preferred embodiment of the present application, the mounting plate 610 is provided with a long slot 614 at the position connected with the card seat 630. The long slot 614 is through, and the card seat 630 is slidably connected to the mounting plate 610 through the long slot 614. The card seat 630 is clamped in the long slot 614 by a bolt or the like. The card seat 630 can be adjusted in a small range in the transverse direction, which facilitates the adjustment of the grinding wheel set 600.

[0036] As shown in Figure 1 and Figure 6 As shown, as a preferred embodiment of the present application, the mounting plate 610 is further provided with a transverse adjustment mechanism. The transverse adjustment mechanism is provided with a limiting clamping jaw 611 and an adjusting bolt 612. The limiting clamping jaw 611 extends from the mounting plate 610 to both sides of the card seat 630. The limiting clamping jaw 611 is provided with a second threaded hole, which is perpendicular to the card seat 630. The adjusting bolt 612 abuts against the side wall of the card seat 630 through the second threaded hole. The user can rotate the adjusting bolt 612 to make fine adjustment of the card seat 630 in the transverse direction. The limiting effect of the adjusting bolt 612 provided on both sides ensures that the card seat 630 will not move after adjustment.

[0037] Specifically, the adjusting bolt 612 is a butterfly bolt, which facilitates the user to make adjustment without using other tools.

[0038] As shown in Figure 1 and Figure 6 As shown, as a preferred embodiment of the present application, the grinding belt 640 is a plurality of convex circular rings arranged on the cylindrical side wall of the grinding wheel. The grinding belts 640 of the two grinding wheels avoid each other and engage with each other. If the grinding wheel set 600 is two cylindrical grinding wheels, there will be a gap between the grinding wheels, which will cause the blade not to be polished well. The use of the mutually engaged grinding wheel set 600 can ensure that the blade can also be polished in place.

[0039] As shown in Figure 1 and Figure 6 As shown, as a preferred embodiment of the present application, the sensor unit 500 adopts a high-precision photoelectric sensor 510 to detect the distance from the slope 211 to the sensor.

[0040] Specifically, the photoelectric sensor 510 has an accuracy of ±0.01 mm, and the converted error of the blade width data is ±0.1 mm, which meets the actual production needs.

[0041] Please refer to Figure 1 and Figure 6 As shown in FIGS. 6 and 7, as a preferred embodiment of the present application, the driving assembly 300 is a cylinder drive, which is advantageous for pressure adjustment. By adjusting the air pressure, the force of the cylinder stretching is adjusted, and thus the pressure of the grinding wheel set 600 on the blade is changed.

[0042] In the drawings, the position relationship is only used for illustrative description, and should not be understood as a limitation on the patent; obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application.

[0043] For those skilled in the art, various corresponding changes and modifications can be made to the above-described technical solutions and concepts, and all these changes and modifications should be within the protection scope of the present application.

Claims

1. A blade sharpening and width measuring device for a fabric cutting apparatus, characterized by, The utility model relates to a kind of knife grinder, including: Bottom plate, sliding table, motor assembly, transmission wheel assembly, knife grinding assembly, drive assembly and measuring assembly; Wherein, the bottom plate is equipped with slide rail, the sliding table is slidably connected with the slide rail, the motor assembly is arranged on the sliding table, the knife grinding assembly is arranged on the sliding table, the transmission wheel assembly is respectively connected on the motor assembly and the knife grinding assembly, the drive assembly both ends are connected sliding table and the bottom plate, with the direction of the knife grinding assembly to blade movement is positive direction; The measuring assembly includes sensor unit and measuring plate, the measuring plate is arranged on the side wall of the sliding table, the end opposite to the tool on the measuring plate is equipped with slope, the cross-sectional area of the slope gradually increases towards the opposite direction, the sensor unit is arranged on the bottom plate, the detection surface of the sensor unit is arranged above the slope in parallel;The sensor unit uses high-precision photoelectric sensor to detect the distance from the slope to the sensor, the distance difference detected by the sensor unit is linearly related to the tool width; The knife grinding assembly includes fixed seat unit and grinding wheel group, the fixed seat unit is arranged on the sliding table, and the grinding wheel group is two cylindrical grinding wheels arranged side by side on the fixed seat.

2. A device for sharpening and measuring the width of a cutting blade of a fabric cutting apparatus according to claim 1, wherein: The transmission wheel assembly includes driving wheel, tension pulley, driven wheel and belt, the driving wheel is arranged on the output shaft of the motor assembly, the driven wheel is arranged at one end of the grinding wheel group, the belt is connected with the driving wheel and the driven wheel respectively, and the tension pulley is arranged on both sides of the middle section of the belt respectively. The tension pulley extrudes the belt.

3. A blade sharpening and width measuring device for a fabric cutting apparatus as defined in claim 2, wherein: The transmission wheel assembly is provided with two sets, and the transmission wheel assemblies are respectively connected on both sides of the motor assembly.

4. The device as claimed in claim 1, wherein: The fixed seat unit includes steering mechanism, mounting plate and clamping seat, the steering mechanism is provided with a rotating rod and a bearing, the upper end of the rotating rod is connected with the bottom of the sliding table, the lower end of the rotating rod is connected with the bearing, the bearing is fixed on the mounting plate, one end of the clamping seat is connected with the mounting plate, and the clamping seat fixes the grinding wheel group.

5. A blade sharpening and width measuring device for a fabric cutting apparatus as defined in claim 4, wherein: One end of the mounting plate opposite to the clamping seat is provided with a tail plate, both sides of the tail plate are provided with through holes, the bottom of the sliding table is provided with an adjusting frame, the position of the adjusting frame matches the position of the tail plate, the adjusting frame is provided with a first threaded hole corresponding to the position of the through hole, and the diameter of the through hole is greater than the inner diameter of the first threaded hole.

6. A blade sharpening and width measuring device for a fabric cutting apparatus as defined in claim 4, wherein: The mounting plate and the clamping seat are connected with a long slot, the long slot is through, and the clamping seat is slidably connected to the mounting plate through the long slot.

7. A blade sharpening and width measuring device for a fabric cutting apparatus as defined in claim 6, wherein: The mounting plate is also provided with a horizontal shift adjusting mechanism, the horizontal shift adjusting mechanism is provided with a limiting claw and an adjusting bolt, the limiting claw extends from the mounting plate to both sides of the clamping seat, the limiting claw is provided with a second threaded hole, the second threaded hole is perpendicular to the clamping seat, and the adjusting bolt abuts against the side wall of the clamping seat through the second threaded hole.

8. A device for sharpening and measuring the width of a cutting blade of a fabric cutting apparatus according to claim 1, wherein: The grinding wheel is provided with a grinding belt, the grinding belt is a plurality of convex annular rings arranged on the cylindrical side wall of the grinding wheel, and the grinding belts of the two grinding wheels avoid each other and engage with each other.

9. A device for sharpening and measuring the width of a cutting blade of a fabric cutting apparatus according to claim 1, wherein: The drive assembly is a pneumatic cylinder drive.

Images