CN112977977B - Circle cutting machine - Google Patents

Abstract

The invention discloses a circle cutting machine, comprising: a frame mounted with a conveying module, the conveying direction of the conveying module being set from back to front; the clamping module is arranged on the frame and used for clamping the workpiece on the conveying module, and the clamping direction of the clamping module is horizontally orthogonal to the conveying direction of the conveying module; the circle cutting module is arranged right above the conveying module and comprises an up-down lifting mechanism and a rotary circle cutting mechanism, the up-down lifting mechanism is connected with the rotary circle cutting mechanism, and the rotary circle cutting mechanism is provided with a rotatable cutter; the positioning module is arranged on the frame and is provided with a movable baffle plate, the baffle plate is positioned in front of the circle cutting module, and the baffle plate is used for positioning the workpiece on the conveying module. Compared with the prior art, the automatic rounding machine can realize automatic rounding of the protective film on the glass panel, effectively improve the cutting efficiency, and can be embedded into a production line to realize the production line.

Description

Circle cutting machine

Technical Field

The invention relates to the technical field of cutting processing, in particular to a circle cutting machine.

Background Art

With the upgrading of consumption, more and more household appliances use glass as panels. For example, gas stoves are equipped with burners, so it is necessary to cut a circular hole on the glass panel to set the burner. After the glass panel is cut, in order to prevent the glass panel from being scratched during transportation, a protective film can be covered on the surface of the glass panel, but the protective film where the circular hole is located needs to be cut. At present, the cutting of the protective film is mainly done manually, which has low cutting efficiency and cannot be embedded in the production line.

Summary of the invention

The invention aims to provide a circle cutting machine to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

A circular cutting machine according to a first embodiment of the present invention comprises:

A frame, on which a conveying module is installed, and the conveying direction of the conveying module is set from back to front;

A clamping module, which is installed on the frame, and is used to clamp the workpiece on the conveying module, and the clamping direction of the clamping module is horizontally orthogonal to the conveying direction of the conveying module;

A circle cutting module is installed just above the conveying module, the circle cutting module comprises an up-and-down lifting mechanism and a rotating circle cutting mechanism, the up-and-down lifting mechanism is connected to the rotating circle cutting mechanism, and the rotating circle cutting mechanism is provided with a rotatable cutting knife;

A positioning module is installed on the frame. The positioning module is provided with a movable baffle. The baffle is located in front of the circle cutting module. The baffle is used to position the workpiece on the conveying module.

The circular cutting machine according to the embodiment of the invention has at least the following beneficial effects: when the glass panel covered with the protective film is conveyed by the conveying module to abut against the baffle, the clamping module starts to clamp the glass panel, at which time the conveying module stops operating, and the circular cutting module drives the cutting knife to move downward and circular cut the protective film where the circular hole on the glass panel is located. After the circular cutting process is completed, the circular cutting module and the clamping module are reset successively, the positioning module controls the baffle to leave the glass panel, and then the conveying module restarts and conveys the circularly cut glass panel away from the circular cutting module. Compared with the prior art, the invention can realize automatic circular cutting of the protective film on the glass panel, effectively improving the cutting efficiency, and the invention can be embedded in the production line to realize production line production.

According to some embodiments of the invention, the conveyor module includes an upper conveyor line and a lower conveyor line, the upper conveyor line is higher than the lower conveyor line; the upper conveyor line includes two upper conveyor belts with wheels, the lower conveyor line includes two lower conveyor belts with wheels, and the two lower conveyor belts with wheels are located between the two upper conveyor belts with wheels. The two upper conveyor belts with wheels are used to convey the glass panels together, and there are space between the upper conveyor line and the lower conveyor line and between the two lower conveyor belts with wheels.

According to some embodiments of the present invention, the positioning module includes a first lifting cylinder and the baffle, the first lifting cylinder drives the baffle to move up and down, and the lifting path of the baffle intersects with the upper conveyor line. The positioning module is located in the avoidance position, when the glass panel needs to be positioned, the first lifting cylinder drives the baffle to rise, and when the glass panel does not need to be positioned, the first lifting cylinder drives the baffle to fall.

According to some embodiments of the invention, the rack is further equipped with a blanking module, and the blanking module is provided with a tray that can be raised and lowered, and the lifting path of the tray intersects with the lower conveyor line. The blanking module is located in the avoidance position, and the tray is in the circle cutting range of the glass panel. When the circle needs to be cut, the tray rises to support the cut waste, and then the tray falls so that the waste can be transported by the two lower belt conveyor belts.

According to some embodiments of the invention, the frame is further equipped with an adjustment frame, the adjustment frame is located above the conveying module, the adjustment frame is provided with a horizontal adjustment mechanism, the horizontal adjustment mechanism is connected to the circle cutting module, so that the horizontal position of the circle cutting module is adjustable. Such a setting enables the invention to cut circles on glass panels of different sizes.

According to some embodiments of the present invention, since the glass panel of the gas stove generally has two circular holes for setting the burner head, the number of the circle cutting modules is two, and the number of the horizontal adjustment mechanisms is consistent with the number of the circle cutting modules.

According to some embodiments created by the present invention, the clamping module includes a sliding base, a first slider, a second slider and a third slider, the first slider, the second slider and the third slider are slidably connected to the sliding base in sequence, the sliding directions of the three sliders are horizontally orthogonal to the conveying direction of the conveying module, the first slider and the third slider are respectively connected to the first clamping block and the second clamping block, the first clamping block and the second clamping block are both provided with clamping surfaces facing each other; the sliding base is rotatably connected to a screw rod, the screw rod is used to drive the first slider and the second slider to synchronously approach or move away, the second slider is installed with a linear telescopic device, the linear telescopic device is provided with a telescopic rod, and the telescopic rod is fixedly connected to the third slider. When the screw rod rotates, it can drive the first slider and the second slider to move closer or farther away synchronously. Since the third slider is connected to the second slider by a linear telescopic device, when the linear telescopic device retracts the telescopic rod and locks its extension, the third slider follows the second slider to move synchronously, so that the first clamping block and the second clamping block can move closer or farther away synchronously under the rotation of the screw rod, and the synchronization performance is good; in addition, when the workpiece is centered and clamped for the first time, the clamping module centered and clamped the workpiece by rotating the screw rod, but thereafter, the workpiece can be centered and clamped only by the linear telescopic device, without the need to centered and clamp the workpiece by the screw rod again, which effectively improves the centering and clamping efficiency of the workpiece.

According to some embodiments of the present invention, the screw rod is provided with two threaded segments with opposite rotation directions, the first slider is provided with a first threaded hole threadedly connected to one of the threaded segments, and the second slider is provided with a second threaded hole threadedly connected to the other threaded segment. Such an arrangement enables the screw rod to drive the first slider and the second slider to synchronously approach or move away when rotating.

According to some embodiments of the invention, the circle cutting module further comprises a bracket, the up-down lifting mechanism and the rotating circle cutting mechanism are both connected to the bracket, and the rotating circle cutting mechanism is located directly below the up-down lifting mechanism; the up-down lifting mechanism is provided with a driving rod that can be lifted up and down, and the lower end of the driving rod is connected with a connecting seat, the rotating circle cutting mechanism comprises a rotating shaft, a rotating device and a circle cutting device, the upper end of the rotating shaft is rotatably connected to the connecting seat, the lower end of the rotating shaft is connected with the circle cutting device, the circle cutting device is provided with the cutting knife, and the rotating device is drivingly connected to the rotating shaft to drive the rotating shaft to rotate. The driving rod of the up-down lifting mechanism can drive the rotating shaft to move up and down through the connecting seat, and the rotating device drives the rotating shaft to rotate. Since the upper end of the rotating shaft is rotatably connected to the connecting seat, the torque of the rotating shaft will not be transmitted to the driving rod, that is, the up-down movement of the rotating shaft and the rotation of the rotating shaft do not interfere with each other, so that the rotating shaft can drive the circle cutting device to move up and down and rotate, which is conducive to the integration of the structure of the circle cutting module.

According to some embodiments of the invention, the rotating circle cutting mechanism further includes a guide seat, a rotating shaft sleeve is slidably connected up and down in the guide seat, and a first bearing for mounting the rotating shaft is arranged in the rotating shaft sleeve; the rotating device drives a rotating wheel, the rotating wheel sleeve is arranged outside the rotating shaft, a spline groove is arranged on the rotating shaft, a spline sleeve matching and connected to the spline groove is installed in the rotating wheel, a second bearing for mounting the spline sleeve is arranged in the guide seat, and the spline sleeve is located above the rotating shaft sleeve. The spline groove is arranged so that the rotating shaft can be raised and lowered along the spline sleeve while rotating under the drive of the rotating wheel.

Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG1 is a schematic diagram of the three-dimensional structure of a circular cutting machine according to an embodiment of the present invention;

FIG2 is a left side view of the circle cutting machine shown in FIG1 ;

FIG3 is a rear view of the circle cutting machine shown in FIG1 ;

FIG4 is a top view of the circle cutting machine shown in FIG1 with the adjustment frame and the circle cutting module removed;

FIG5 is a schematic diagram of a three-dimensional structure of a clamping module according to an embodiment of the present invention;

FIG6 is another schematic diagram of the three-dimensional structure of the clamping module according to the embodiment of the present invention;

FIG7 is a rear view of the clamping module shown in FIG5 ;

FIG8 is a partial enlarged view of the clamping module at position A shown in FIG7;

9 is a schematic diagram of the three-dimensional structure of the adjustment frame of the embodiment of the present invention;

10 is a schematic diagram of the three-dimensional structure of the circle cutting module according to an embodiment of the present invention;

FIG11 is a front view of the circle cutting module shown in FIG10;

FIG12 is a top view of the circle cutting module shown in FIG10;

FIG13 is a cross-sectional view of the circle cutting module shown in FIG12 along the A-A section line.

In the attached drawings: 100-frame, 101-driving shaft, 102-driven shaft, 211-upper driving wheel, 221-lower driving wheel, 212-upper driven wheel, 222-lower driven wheel, 213-upper belt, 210-upper belt conveyor belt, 223-lower belt, 220-lower belt conveyor belt, 203-avoidance, 201-upper conveyor line, 300-glass panel, 214-long pad, 202-lower conveyor line, 200-conveyor module, 400-clamping module, 440-sliding base, 410-first slide Block, 420-second slider, 430-third slider, 441-mounting plate, 442-guide rod, 411-first clamping block, 431-second clamping block, 401-clamping surface, 450-screw, 451-positive thread segment, 452-reverse thread segment, 412-first nut block, 422-second nut block, 432-middle block, 460-linear telescopic device, 461-telescopic rod, 453-handwheel, 500-circle cutting module, 510-bracket, 520-up and down lifting mechanism, 530-rotating circle cutting mechanism, 531-guide seat , 532-rotating shaft, 533-rotating device, 534-circle cutting device, 521-driving rod, 540-connecting seat, 541-connecting upper seat, 542-connecting lower seat, 543-third bearing, 5311-rotating shaft sleeve, 5312-first bearing, 5341-clamping block, 5342-movable rod, 5343-knife block, 5344-cutting knife, 5331-rotating wheel, 5321-spline groove, 5332-spline sleeve, 5313-second bearing, 550-stop mechanism, 551-stop block, 552-stop rod, 511-stop Slide slot, 553-first induction sensor, 600-adjustment frame, 610-main slide bar, 620-horizontal adjustment mechanism, 621-connecting plate, 622-sliding block, 6211-mounting hole, 6221-secondary slide bar, 630-front and rear adjustment part, 640-left and right adjustment part, 623-middle block, 310-round hole, 700-positioning module, 710-first lifting cylinder, 720-baffle, 800-blank module, 810-second lifting cylinder, 820-tray, 110-second induction sensor, 120-third induction sensor.

DETAILED DESCRIPTION

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

In the description of the present invention, it should be understood that the descriptions involving orientation, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In the description of the invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of the first, second, and third, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

As shown in FIGS. 1 to 4 , a circular cutting machine according to a first embodiment of the present invention comprises a frame 100, wherein the rear end and the front end of the frame 100 are respectively rotatably connected to a driving shaft 101 and a driven shaft 102, wherein the driving shaft 101 is driven by a reduction motor (not shown in the drawings), wherein the driving shaft 101 is fixedly connected to two upper driving wheels 211 and two lower driving wheels 221, and the driven shaft 102 is fixedly connected to two upper driven wheels 212 and two lower driven wheels 222, wherein each upper driven wheel 211 is fixedly connected to the driven shaft 102, wherein each upper driven wheel 212 is fixedly connected to the driven shaft 10 ... The driving wheel 211 and the corresponding upper driven wheel 212 are connected by an upper belt 213 to form an upper pulley conveyor belt 210, and each lower driving wheel 221 and the corresponding lower driven wheel 222 are connected by a lower belt 223 to form a lower pulley conveyor belt 220, so that when the reduction motor drives the driving shaft 101 to rotate, the two upper pulley conveyor belts 210 and the two lower pulley conveyor belts 220 can operate simultaneously. In order to achieve layered conveying, the diameters of the upper driving wheel 211 and the upper driven wheel 212 are both larger than the diameters of the lower driving wheel 221 and the lower driven wheel 222, and the diameter of the upper driving wheel 211 is consistent with the diameter of the upper driven wheel 212, and the diameter of the lower driving wheel 221 is consistent with the diameter of the lower driven wheel 222, so that the conveying plane of the upper belt conveyor belt 210 is higher than the conveying plane of the lower belt conveyor belt 220; the two upper belt conveyor belts 210 are arranged at intervals left and right, and the two lower belt conveyor belts 220 are arranged at intervals left and right, and the two lower belt conveyor belts 220 are located between the two upper belt conveyor belts 210, so as to reserve sufficient avoidance space 203 between the upper belt conveyor belt 210 and the lower belt conveyor belt 220 and between the two lower belt conveyor belts 220. The two upper conveyor belts 210 with upper wheels together constitute an upper conveyor line 201, and the upper conveyor line 201 is used to convey the glass panel 300. In order to better support the glass panel 300, long pads 214 are provided under the upper belts 213 of the two upper conveyor belts 210 to strengthen the strength of the upper conveyor line 201; the two lower conveyor belts 220 with lower wheels together constitute a lower conveyor line 202, and the lower conveyor line 202 is used to convey the waste after cutting into a circle. In summary, the conveying module 200 composed of the upper conveyor line 201 and the lower conveyor line 202 is installed on the frame 100, and the conveying direction of the conveying module 200 is set to be from back to front.

As shown in Fig. 1, Fig. 5 to Fig. 8, in order to clamp the glass panel 300 on the upper conveying line 201, a clamping module 400 is installed on the frame 100, and the clamping direction of the clamping module 400 is horizontally orthogonal to the conveying direction of the conveying module 200. Specifically, the clamping module 400 includes a sliding base 440, a first slider 410, a second slider 420 and a third slider 430, and the sliding base 440 is located below the conveying module 200. The sliding base 440 includes two mounting plates 441 and two guide rods 442, and the two mounting plates 441 are arranged at intervals on the left and right, and the two mounting plates 441 are fixedly connected to the frame 100, and the two guide rods 442 are respectively connected between the two mounting plates 441, and the two guide rods 442 are arranged on the left and right. The first slider 410, the second slider 420 and the third slider 430 are all provided with guide holes for use with the guide rod 442, so that the first slider 410, the second slider 420 and the third slider 430 can be slidably connected to the sliding base 440 in sequence, and the tops of the first slider 410 and the third slider 430 are respectively connected with the first clamping block 411 and the second clamping block 431, and the first clamping block 411 and the second clamping block 431 are both provided with clamping surfaces 401 facing each other to clamp the glass panel 300 on the upper conveyor line 201. The sliding base 440 is rotatably connected to a screw rod 450, and the screw rod 450 is arranged in parallel with the guide rod 442. The screw rod 450 is provided with two thread segments with opposite rotation directions, one of which is a forward-rotating thread segment 451, and the other is a reverse-rotating thread segment 452; a first nut block 412 is provided at the bottom of the first sliding block 410, and the first nut block 412 is provided with a first threaded hole threadedly connected to the reverse-rotating thread segment 452, and a second nut block 422 is provided at the bottom of the second sliding block 420, and the second nut block 422 is provided with a second threaded hole threadedly connected to the forward-rotating thread segment 451, so that the screw rod 450 can drive the first sliding block 410 and the second sliding block 420 to move closer or farther synchronously when rotating. In addition, the third slider 430 is provided with an intermediate block 432, and the second slider 420 is installed with a linear telescopic device 460, which includes but is not limited to a cylinder, an electric push rod or an oil cylinder. Since the cost of using a cylinder is low and its stroke speed is fast, the linear telescopic device 460 in this embodiment can be selected as a cylinder, specifically an internal tooth cylinder, and the linear telescopic device 460 is provided with a telescopic rod 461, which is arranged parallel to the screw rod 450, and the telescopic rod 461 is fixedly connected to the intermediate block 432, so that the position of the third slider 430 can be adjusted by the linear telescopic device 460, or when the linear telescopic device 460 retracts the telescopic rod 461 and locks it to extend, the third slider 430 follows the second slider 420 to move synchronously. Through the above arrangement, the first clamping block 411 and the second clamping block 431 can be synchronously approached or synchronously separated under the rotation of the screw rod 450, so as to realize the centering clamping of the glass panel 300. The positioning reference line of the clamping module 400 is located at the middle position of the two clamping surfaces 401. The positioning reference line is only related to the clamping position of the two clamping surfaces 401, and has nothing to do with the size of the glass panel 300. In order to make the positioning reference line between the two clamping surfaces 401 always match the center line of the upper conveying line 201, the first clamping block 411 and the second clamping block 431 should be arranged symmetrically with respect to the center line of the upper conveying line 201.

When the glass panel 300 is first centered and clamped, this is the debugging stage of the clamping module 400. The linear telescopic device 460 does not participate in the clamping work and is in a retracted state. The extension of its telescopic rod 461 is locked, so that the third slider 430 can move synchronously with the second slider 420. At this time, the clamping module 400 centers and clamps the glass panel 300 by rotating the screw rod 450, and the positioning reference line of the clamping module 400 matches the center line of the upper conveyor line 201. After that, the positions of the first slider 410 and the second slider 420 can be locked. When the glass panel 300 needs to be loosened, the linear telescopic device 460 controls the telescopic rod 461 to extend so that the second clamping block 431 is away from the first clamping block 411. When the next glass panel 300 needs to be clamped, the linear telescopic device 460 controls the telescopic rod 461 to retract so that the second clamping block 431 is close to the first clamping block 411. If the size of the glass panel 300 remains unchanged, the clamping positions of the two clamping surfaces 401 also remain unchanged, so that the clamping module 400 only needs to use the linear telescopic device 460 to center and clamp the glass panel 300, without the need to use the screw 450 to center and clamp the glass panel 300 again, thereby effectively improving the centering and clamping efficiency of the glass panel 300. It can be understood that the screw rod 450 can be driven manually or electrically. If the screw rod 450 is driven manually, one end of the screw rod 450 is connected to a handwheel 453, and the handwheel 453 is used to drive the screw rod 450 to rotate. If the screw rod 450 is driven electrically, one end of the screw rod 450 is connected to a drive motor, and the drive motor is used to drive the screw rod 450 to rotate. Since the screw rod 450 only works during the debugging stage, the screw rod 450 can be optionally driven by a handwheel 453 to save manufacturing costs.

It should be further explained that if glass panels 300 of different sizes need to be centered and clamped, the clamping module 400 needs to be re-debugged each time the glass panels 300 of different sizes are switched. After the debugging is completed, the linear telescopic device 460 can be used to center and clamp the glass panels 300 of the same size.

As shown in Fig. 2, Fig. 10 to Fig. 13, in order to cut a circle on the glass panel 300 covered with a protective film on the upper conveying line 201, a circle cutting module 500 is installed just above the conveying module 200. Specifically, the circle cutting module 500 includes a bracket 510, an up-and-down lifting mechanism 520 and a rotating circle cutting mechanism 530, and the rotating circle cutting mechanism 530 includes a guide seat 531, a rotating shaft 532, a rotating device 533 and a circle cutting device 534. The up-and-down lifting mechanism 520 and the guide seat 531 are both installed on the bracket 510, and the guide seat 531 is located below the up-and-down lifting mechanism 520. The rotating shaft 532 is movably connected in the guide seat 531, and the upper end and the lower end of the rotating shaft 532 both extend outside the guide seat 531. The up and down lifting mechanism 520 includes but is not limited to a cylinder, an oil cylinder or an electric push rod. Since the cost of using a cylinder is low and its stroke speed is fast, the up and down lifting mechanism 520 in this embodiment can be selected as a cylinder. The up and down lifting mechanism 520 is provided with a drive rod 521 which can be extended and retracted up and down, and the lower end of the drive rod 521 is connected to a connecting seat 540, and the connecting seat 540 is connected by an upper connecting seat 541 and a lower connecting seat 542, wherein the lower end of the drive rod 521 is fixedly connected to the upper connecting seat 541, and a third bearing 543 is provided in the lower connecting seat 542, and the upper connecting seat 541 is used to press the third bearing 543 to prevent the third bearing 543 from axial movement. A rotating shaft sleeve 5311 is slidably connected up and down in the guide seat 531, and a first bearing 5312 is provided in the rotating shaft sleeve 5311. The rotating shaft 532 and the rotating shaft sleeve 5311 are rotatably connected via the first bearing 5312, and the upper end of the rotating shaft 532 is rotatably connected to the connecting lower seat 542 via the third bearing 543. When the up and down lifting mechanism 520 drives the rotating shaft 532 to lift up and down, the rotating shaft 532 can drive the rotating shaft sleeve 5311 to slide up and down along the inside of the guide seat 531. In addition, the lower end of the rotating shaft 532 is connected to the circle cutting device 534, and the circle cutting device 534 includes a clamping block 5341, a movable rod 5342 and a knife block 5343. The clamping block 5341 is fixedly connected to the lower end of the rotating shaft 532, and the movable rod 5342 is horizontally arranged. The clamping block 5341 and the movable rod 5342 are detachably connected, so that the position of the movable rod 5342 in the clamping block 5341 is adjustable. The knife block 5343 is provided at one end of the movable rod 5342, and the knife block 5343 is provided with a cutting knife 5344 extending downward, and the straight-line distance between the cutting knife 5344 and the rotating shaft 532 is the circle cutting radius. Since the position of the movable rod 5342 in the clamping block 5341 is adjustable, in order to facilitate the adjustment of the cutting radius of the circle cutting device 534, a scale is provided on the movable rod 5342, and a scale indicator mark is provided on the clamping block 5341. The scale is configured according to the cutting radius of the circle. If the required cutting radius is 100 mm, the scale value of 100 mm can be moved to the scale indicator mark. At this time, the cutting radius of the circle cutting device 534 is 100 mm.

As shown in Figure 13, in order to drive the rotating shaft 532 to rotate, the rotating device 533 is arranged between the up and down lifting mechanism 520 and the guide seat 531, and the rotating device 533 includes a driving wheel (not shown in the figure), a rotating wheel 5331 and a transmission belt (not shown in the figure), the driving wheel is driven by a motor, and the driving wheel and the rotating wheel 5331 are connected to each other through the transmission belt. A spline groove 5321 is provided on the rotating shaft 532, and a spline sleeve 5332 matching and connected to the spline groove 5321 is installed in the rotating wheel 5331. The rotating wheel 5331 is close to the guide seat 531, so that the spline sleeve 5332 can extend downward into the guide seat 531, and a second bearing 5313 for mounting the spline sleeve 5332 is provided in the guide seat 531, and the second bearing 5313 is located above the rotating shaft sleeve 5311. The spline groove 5321 is provided so that the rotating shaft 532 can be lifted up and down along the spline sleeve 5332 while being driven by the rotating wheel 5331 to rotate, thereby preventing the rotating wheel 5331 from moving along the rotating shaft 532, so as to fix the position of the rotating mechanism. The driving rod 521 of the lifting mechanism 520 can drive the rotating shaft 532 to move up and down through the connecting seat 540, and the rotating mechanism can drive the rotating shaft 532 to rotate through the spline sleeve 5332. Since the upper end of the rotating shaft 532 is rotatably connected to the connecting seat 540, the torque of the rotating shaft 532 will not be transmitted to the driving rod 521, that is, the up and down movement of the rotating shaft 532 and the rotation movement of the rotating shaft 532 do not interfere with each other, so that the rotating shaft 532 can drive the circle cutting device 534 to move up and down and rotate, effectively integrating the structure of the circle cutting module 500.

As shown in Figures 10 and 11, since the third bearing 543 may be damaged after long-term use, in order to further limit the rotation of the driving rod 521, a stop mechanism 550 is fixedly connected to the driving rod 521, and the stop mechanism 550 includes a stop block 551 and a stop rod 552. The stop block 551 is fixedly connected to the driving rod 521, and the stop block 551 is provided with two horizontally arranged stop rods 552. At the same time, the bracket 510 is provided with two upper and lower stop grooves 511, and the stop rod 552 passes through and is slidably connected to the stop groove 511. Under the stopping action of the stop rod 552 and the stop groove 511, the driving rod 521 cannot rotate, but it can move up and down. In addition, the bracket 510 is connected to a first sensing sensor 553 above the anti-rotation rod 552. The first sensing sensor 553 is used to sense the upper and lower positions of the anti-rotation rod 552, and can indirectly sense the upper and lower positions of the circle cutting device 534, so as to control other driving devices.

As shown in Figures 1 to 3 and Figure 9, in order to enable the invention to cut circles on glass panels 300 of different sizes, it is necessary to make the position of the circle cutting module 500 adjustable. For this purpose, the frame 100 is also equipped with an adjustment frame 600, and the adjustment frame 600 is located above the conveying module 200. The adjustment frame 600 is provided with a horizontal adjustment mechanism 620, and the horizontal adjustment mechanism 620 includes a connecting plate 621, two sliding blocks 622 and two main sliding rods 610. The two main sliding rods 610 are both arranged on the adjustment frame 600 front and back, and the two sliding blocks 622 are respectively slidably connected to the two main sliding rods 610, so that the horizontal adjustment mechanism 620 can slide back and forth along the adjustment frame 600 as a whole. The connecting plate 621 is provided with a mounting hole 6211, and the upper surface of the connecting plate 621 is connected to the guide seat 531 of the circle cutting module 500, so that the circle cutting device 534 of the circle cutting module 500 can pass through the mounting hole 6211 and be located under the connecting plate 621; a secondary sliding rod 6221 is provided under the two sliding blocks 622, and the two secondary sliding rods 6221 are both arranged on the left and right, and the front and rear ends of the connecting plate 621 are respectively slidably connected to the two secondary sliding rods 6221, so that the connecting plate 621 can slide left and right along the sliding block 622. It can be understood that if it is necessary to adjust the horizontal setting of the circle cutting module 500, it is only necessary to adjust the horizontal position of the connecting plate 621. In order to facilitate the adjustment of the horizontal position of the connecting plate 621, an intermediate block 623 is connected between the two sliding blocks 622. The adjustment frame 600 is provided with a front and rear adjustment part 630 for adjusting the front and rear position of the sliding block 622, and the intermediate block 623 is provided with a left and right adjustment part 640 for adjusting the left and right position of the connecting plate 621. The user can adjust the front and rear position of the entire horizontal adjustment mechanism 620 through the front and rear adjustment part 630, and can adjust the left and right position of the connecting plate 621 separately through the left and right adjustment part 640 to achieve the adjustment of the horizontal position of the circle cutting module 500. It is understandable that since the glass panel 300 of the gas stove generally has two circular holes 310 for setting the burner head, in order to improve the circle cutting efficiency, the number of the circle cutting modules 500 is two, and the number of the horizontal position adjustment mechanisms is consistent with the number of the circle cutting modules 500, so that the horizontal positions of the two circle cutting modules 500 can be adjusted separately.

As shown in Figures 1 and 4, in order to locate the position of the glass panel 300 on the upper conveyor line 201, the frame 100 is also equipped with a positioning module 700. The positioning module 700 is located in the avoidance position 203 of the upper conveyor line 201. The positioning module 700 includes a first lifting cylinder 710 and a baffle 720. The first lifting cylinder 710 drives the baffle 720 to move up and down. The lifting path of the baffle 720 intersects with the upper conveyor line 201. The baffle 720 is located in front of the circle cutting module 500. When it is necessary to position the glass panel 300 on the upper conveyor line 201, the first lifting cylinder 710 drives the baffle 720 to rise, so that the front end of the glass panel 300 can abut against the baffle 720. Even if the upper conveyor line 201 keeps operating at this time, the front and rear positions of the glass panel 300 will not be changed. When it is not necessary to position the glass panel 300, the first lifting cylinder 710 drives the baffle 720 to descend, and the baffle 720 no longer blocks the glass panel 300, so that the glass panel 300 can be transported forward again through the upper conveyor line 201. It can be understood that the baffle 720 can move in addition to lifting up and down, and can also be telescoped in the left and right directions of the upper conveyor line 201. At this time, the first lifting cylinder 710 needs to be replaced with a left and right telescopic cylinder.

As shown in Fig. 1, Fig. 3 and Fig. 4, the rack 100 is also equipped with a blanking module 800, which is located in the avoidance position 203 of the lower conveyor line 202. The blanking module 800 includes a second lifting cylinder 810 and a tray 820. The second lifting cylinder 810 drives the tray 820 to move up and down. The lifting path of the tray 820 intersects with the lower conveyor line 202. The tray 820 is in the circle cutting range of the glass panel 300. If the number of the circle cutting modules 500 is two, the number of the blanking modules 800 is also two. When it is necessary to cut a circle, the tray 820 rises to support the cut waste, and then the tray 820 descends to a conveying plane below the lower conveyor line 202, so that the waste can be transported forward by the lower conveyor line 202 to collect the cut waste. It should be noted that, in order to adapt to glass panels 300 of different sizes, the position of the blanking module 800 can be set to be movable, or the size of its tray 820 can be enlarged to ensure that the tray 820 is always within the cut circle range of the glass panel 300 .

As shown in Figures 1, 2 and 4, in order to achieve automated processing, the frame 100 is also provided with a second inductive sensor 110 and a third inductive sensor 120. The second inductive sensor 110 and the third inductive sensor 120 are both used to detect the glass panel 300 on the upper conveyor line 201. The third inductive sensor 120 and the second inductive sensor 110 are respectively located at the front and rear sides of the circle cutting module 500. The first inductive sensor 553 can be a proximity switch, and the second inductive sensor 110 and the third inductive sensor can be photoelectric sensors. All three are connected to the controller of the circle cutting machine (not shown in the drawings) by electrical signals. If the circle cutting machine is used in a production line, the equipment at the previous station of the circle cutting machine should be a film laminating machine. When the film laminating machine conveys the glass panel 300 with a protective film to the circle cutting machine, the working process of the circle cutting machine is as follows:

1. When the second inductive sensor 110 detects the glass panel 300 on the upper conveying line 201, the second inductive sensor 110 sends a command to the controller of the circular cutting machine, so that the first lifting cylinder 710 drives the baffle 720 to rise. At the same time, the second inductive sensor 110 sends a delay command to the controller of the circular cutting machine;

2. Under the time delay control of the controller, when the glass panel 300 on the upper conveyor line 201 abuts against the baffle 720, the conveyor module 200 and the conveyor line of the film laminating machine stop operating, and then the clamping module 400 performs centering clamping on the glass panel 300, the second lifting cylinder 810 drives the tray 820 to rise, and then the circle cutting module 500 drives the cutting knife 5344 to move downward and cut a circle on the protective film where the circular hole 310 on the glass panel 300 is located;

3. After the circle cutting process is completed, the tray 820 supports the cut waste, and the cutting knife 5344 is reset upward, so that the first induction sensor 553 can detect the anti-rotation rod 552 again. The first induction sensor 553 sends a command to the controller of the circle cutting machine, so that the second lifting cylinder 810 drives the tray 820 to descend below the conveying surface of the lower conveyor line 202. At this time, the waste is placed on the lower conveyor line 202. Under the control of the controller, the clamping module 400 and the baffle 720 are reset successively, and the conveying module 200 is reactivated, so that the conveying module 200 can drive the glass panel 300 and the cut waste to be conveyed forward;

4. When the third induction sensor 120 detects the glass panel 300, the conveying line of the film laminating machine is reactivated, so that the glass panel 300 on the film laminating machine can be conveyed to the circular cutting machine;

5. Repeat steps 1 to 4 in a loop until the production line stops.

The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims (7)

1. A circular cutting machine, characterized in that it comprises: A frame (100) is installed with a conveying module (200), wherein the conveying direction of the conveying module (200) is set from back to front, the conveying module (200) comprises an upper conveying line (201) and a lower conveying line (202), the upper conveying line (201) being higher than the lower conveying line (202); the upper conveying line (201) comprises two upper conveying belts with wheels (210), the lower conveying line (202) comprises two lower conveying belts with wheels (220), and the two lower conveying belts with wheels (220) are both located between the two upper conveying belts with wheels (210); a clamping module (400) mounted on the frame (100), the clamping module (400) being used to clamp a workpiece on the conveying module (200), the clamping direction of the clamping module (400) being horizontally orthogonal to the conveying direction of the conveying module (200); a circle cutting module (500) installed directly above the conveying module (200), the circle cutting module (500) comprising an up-and-down lifting mechanism (520) and a rotating circle cutting mechanism (530), the up-and-down lifting mechanism (520) being connected to the rotating circle cutting mechanism (530), the rotating circle cutting mechanism (530) being provided with a rotatable cutting knife (5344); a positioning module (700) mounted on the frame (100), the positioning module (700) being provided with a movable baffle (720), the baffle (720) being located in front of the circle cutting module (500), the baffle (720) being used to position a workpiece on the conveying module (200); a blanking module (800) mounted on the frame (100), the blanking module (800) being provided with a tray (820) that can be lifted up and down, the lifting path of the tray (820) intersecting with the lower conveyor line (202); An adjustment frame (600) is mounted on the frame (100), the adjustment frame (600) is located above the conveying module (200), the adjustment frame (600) is provided with a horizontal adjustment mechanism (620), and the horizontal adjustment mechanism (620) is connected to the circle cutting module (500), so that the horizontal position of the circle cutting module (500) is adjustable. 2. The circle cutting machine according to claim 1, characterized in that: the positioning module (700) comprises a first lifting cylinder (710) and the baffle (720), the first lifting cylinder (710) drives the baffle (720) to move up and down, and the lifting path of the baffle (720) intersects with the upper conveyor line (201). 3. The circle cutting machine according to claim 1, characterized in that: the number of the circle cutting modules (500) is two, and the number of the horizontal adjustment mechanisms (620) is consistent with the number of the circle cutting modules (500). 4. The circular cutting machine according to claim 1, characterized in that: the clamping module (400) comprises a sliding base (440), a first slider (410), a second slider (420) and a third slider (430), the first slider (410), the second slider (420) and the third slider (430) are slidably connected to the sliding base (440) in sequence, the sliding directions of the three sliders are horizontally orthogonal to the conveying direction of the conveying module (200), the first slider (410) and the third slider (430) are respectively connected to the first clamping block (411) and the second clamping block (4 31), the first clamping block (411) and the second clamping block (431) are both provided with clamping surfaces (401) facing each other; the sliding base (440) is rotatably connected to a screw rod (450), the screw rod (450) is used to drive the first slider (410) and the second slider (420) to move synchronously closer or farther away, and the second slider (420) is installed with a linear telescopic device (460), the linear telescopic device (460) is provided with a telescopic rod (461), and the telescopic rod (461) is fixedly connected to the third slider (430). 5. The circular cutting machine according to claim 4, characterized in that: the screw rod (450) is provided with two threaded segments with opposite rotation directions, the first slider (410) is provided with a first threaded hole threadedly connected to one of the threaded segments, and the second slider (420) is provided with a second threaded hole threadedly connected to the other threaded segment. 6. The circle cutting machine according to claim 1, characterized in that: the circle cutting module (500) further comprises a bracket (510), the up and down lifting mechanism (520) and the rotating circle cutting mechanism (530) are both connected to the bracket (510), and the rotating circle cutting mechanism (530) is located directly below the up and down lifting mechanism (520); the up and down lifting mechanism (520) is provided with a driving rod (521) that can be lifted up and down, and the lower end of the driving rod (521) is connected to a connecting seat ( 540), the rotating circle cutting mechanism (530) comprises a rotating shaft (532), a rotating device (533) and a circle cutting device (534), the upper end of the rotating shaft (532) is rotatably connected to the connecting seat (540), the lower end of the rotating shaft (532) is connected to the circle cutting device (534), the circle cutting device (534) is provided with the cutting knife (5344), and the rotating device (533) is drivingly connected to the rotating shaft (532) to drive the rotating shaft (532) to rotate. 7. The circle cutting machine according to claim 6, characterized in that: the rotating circle cutting mechanism (530) further comprises a guide seat (531), a rotating shaft sleeve (5311) is slidably connected to the guide seat (531) up and down, and a first bearing (5312) for mounting the rotating shaft (532) is arranged in the rotating shaft sleeve (5311); the rotating device (533) drives a rotating wheel (5331), the rotating wheel (5331) is sleeved outside the rotating shaft (532), the rotating shaft (532) is provided with a spline groove (5321), a spline sleeve (5332) matched with the spline groove (5321) is installed in the rotating wheel (5331), a second bearing (5313) for mounting the spline sleeve (5332) is arranged in the guide seat (531), and the spline sleeve (5332) is located above the rotating shaft sleeve (5311).