CN110282867B - A special-shaped scribing structure of a multi-knife scribing machine - Google Patents

Abstract

The invention relates to the technical field related to glass scribing and cutting, in particular to a special-shaped scribing structure of a multi-cutter scribing machine, and aims to solve the technical problems of low front-back adjustment efficiency and poor stability of a cutter head of the existing multi-cutter scribing machine for special-shaped cutting. The technical scheme is as follows: and a Y-direction adjusting structure is additionally arranged, each cutter head carries out zero point positioning of a first servo motor through a first photoelectric sensor and a first sensor sheet, then a line is pre-drawn, the gap between a plurality of cutter heads is determined through a CCD assembly, and each first servo motor is controlled to act so as to adjust the plurality of cutter heads to be on the same straight line. The invention provides two structures, one of which can be integrally provided with a cutter head device, the cutter head device is convenient to install and replace, the applicability is strong, and the other structure is a combined structure of the cutter heads in a screw driving and cylinder pressurizing mode of a servo motor, so that compared with the structure that the cutter heads of the structure are directly and integrally arranged on a first structure, the stability of the whole structure is stronger, and the structural precision is easier to ensure.

Description

A special-shaped scribing structure of a multi-knife scribing machine

technical field

The invention relates to the related technical field of glass scribing and cutting, in particular to a special-shaped scribing structure of a multi-knife scribing machine.

Background technique

Special-shaped scribing and cutting is to scribe and break the whole screen glass or strip glass with non-linear lines such as circles and arcs. At present, in order to improve the processing efficiency, the general special-shaped scribing process is processed by a multi-knife scribing machine. Multiple special-shaped cutter head mechanisms work at the same time, which can double the processing efficiency and has great development potential. The existing multi-knife marking machine for special-shaped cutting uses a differential head to adjust the front and rear consistency of the cutting head. It is necessary to repeatedly calibrate and proofread multiple cutting heads based on one cutting head. The adjustment efficiency is low and it is not easy to debug and maintain. For the cutting of special-shaped glass with large format and many graphics, it will affect the pass rate and cutting efficiency of the product, and the stability is poor.

Contents of the invention

The invention aims to solve the technical problems of low front and rear adjustment efficiency and poor stability of the cutter head of the existing multi-knife scribing machine for special-shaped cutting. For this reason, the present invention proposes a special-shaped scribing structure of a multi-knife scribing machine.

The technical solution adopted by the present invention to solve its technical problems is:

A special-shaped scribing structure of a multi-knife scribing machine, including a knife beam, on which at least two special-shaped scribing units are arranged, and the special-shaped scribing unit includes a moving plate slidingly installed on the knife beam in the X direction , the moving plate is fixed with a mounting base, and a first lead screw arranged along the Y direction is rotatably mounted on the mounting base, and the first lead screw is connected with a first servo motor driving its rotation, and the first lead screw is A nut piece is set on the lead screw, and a Y-guiding rail is fixed on the mounting seat. The nut piece is fixedly connected with a special-shaped cutting head device slidingly installed on the Y-guiding rail. A photoelectric sensor and CCD assembly, the special-shaped cutting head device is provided with a first sensor sheet corresponding to the first photoelectric sensor, and the first photoelectric sensor cooperates with the first sensor to determine the zero point of the first servo motor. This structure is to fix the existing complete set of special-shaped cutting head device on the nut. The special-shaped cutting head device here can be the structure of the existing servo motor with screw drive and cylinder pressurization, or the servo motor. Complete sets of structures such as cam structures, such as the structures described in application numbers 200710061485.5, 201310665667.9, etc., are all available. This special-shaped cutting head device has a Y-direction moving structure. Here, the X-direction moving structure can adopt the existing structure. The main innovation of this scheme is that the Y-direction movement related structure is added, and the zero point of the first servo motor is detected through the alignment of the first photoelectric sensor and the first sensor sheet. Determine the difference between the zero point positions of multiple cutter heads, control the action of the first servo motor, and drive the first lead screw to rotate, thereby realizing the front and rear adjustment of the cutter heads.

A special-shaped scribing structure of a multi-knife scribing machine, including a knife beam, on which at least two special-shaped scribing units are arranged, and the special-shaped scribing unit includes a moving plate slidingly installed on the knife beam in the X direction , a second servo motor is fixed on the moving plate, the output shaft of the second servo motor faces downward and a second lead screw is fixedly connected coaxially, the second lead screw is covered with a nut seat, and the moving plate A Z guide rail is fixed on the top, the nut seat is slidably embedded on the Z guide rail, a fourth photoelectric sensor is arranged on the moving plate, and a fourth photoelectric sensor is arranged on the nut seat corresponding to the fourth photoelectric sensor. The sensor sheet, the fourth photoelectric sensor cooperates with the fourth sensor sheet to determine the zero point position of the second servo motor, the nut seat is also fixed with a mounting seat, and the mounting seat is rotatably mounted with a The first lead screw, the first lead screw is connected with the first servo motor that drives it to rotate, the nut is sleeved on the first lead screw, the Y guide rail is also fixed on the mounting base, the nut is A pressurized base slidingly installed on the Y guide rail is fixedly connected, and a constant pressure cylinder is installed on the pressurized base, and the output end of the constant pressure cylinder is fixedly connected with a special-shaped cutter wheel mechanism, and the constant pressure cylinder The cylinder and the special-shaped cutter wheel mechanism are connected by a second tension spring. The first photoelectric sensor and CCD assembly are also arranged on the mounting seat or the nut seat, and the first photoelectric sensor is corresponding to the pressurized base. A first sensor sheet is provided, and the first photoelectric sensor cooperates with the first sensor to determine the zero point position of the first servo motor. This is the combined structure of this device combined with a specific cutting head device (servo motor and lead screw drive, cylinder pressurized structure).

The beneficial effects of the present invention are:

The special-shaped scribing structure of the multi-knife scribing machine provided by the present invention is additionally equipped with a Y-direction adjustment structure, and each cutter head performs the zero point positioning of the first servo motor through the first photoelectric sensor and the first sensor sheet, and then pre-scribing and The gap between multiple cutter heads is determined by the CCD component, and the action of each first servo motor is controlled to adjust the multiple cutter heads to the front and rear on the same straight line. Compared with the existing differential head adjustment mechanism, the adjustment efficiency is higher and the stability is stable. Even better, the quality of front and rear alignment of multiple cutting heads is high, which improves the cutting accuracy and quality. The more the number of cutting heads, the more obvious the superiority of this structure is. The present invention provides two structures. The above are the common advantages of the two structures. In addition, one structure can be installed with a cutting head device as a whole, which is convenient for installing and replacing the cutting head and has strong applicability. The other structure is for servo motor screw The combined structure of the drive and cylinder pressurized cutter head is only suitable for this cutter head structure, but this structure is more stable than the overall structure of the cutter head directly installed on the first structure. Strong, the structural accuracy is easier to guarantee.

Description of drawings

Fig. 1 is the overall structural representation of multi-cutter cutting machine of the present invention;

Fig. 2 is the schematic diagram of the special-shaped scribing unit of the first structure of the present invention;

Fig. 3 is the schematic diagram of the special-shaped scribing unit of the second structure of the present invention;

Fig. 4 is a schematic structural view of a cutting head device of the present invention;

Fig. 5 is a front view of the remaining structure of the cutting head device shown in Fig. 4 after removing the front side plate;

Fig. 6 is a schematic structural view of the cutting head device shown in Fig. 4 after the left side plate and the mounting plate are removed;

Fig. 7 is a schematic view of the structure of the cutting head device shown in Fig. 4 after the special-shaped cutter wheel mechanism and the sliding plate are removed;

Fig. 8 is a structural schematic view of the cutter head device shown in Fig. 4 after the special-shaped cutter wheel mechanism and the left side plate are removed.

Detailed ways

Referring to Fig. 1 and Fig. 2, a special-shaped scribing structure of a multi-knife scribing machine according to the present invention includes a knife beam 1 on which at least two special-shaped scribing units 2 are arranged, and the special-shaped scribing The unit 2 includes a moving plate 2-1 slidingly installed on the knife beam 1 in the X direction. The sliding installation here can adopt a sliding structure commonly used in the field. The moving plate 2-1 is fixed with a mounting seat 2-2, so The mounting seat 2-2 is rotatably mounted with a first lead screw 2-3 arranged along the Y direction, the rotatable installation here adopts a commonly used rotatable installation structure in the field, and the first lead screw 2-3 is connected with a drive It rotates the first servo motor 2-4, the first lead screw 2-3 is covered with a nut 2-5, and the mounting seat 2-2 is also fixed with a Y guide rail 2-6, and the nut Part 2-5 is fixedly connected with a special-shaped cutting head device 3 that is slidably installed on the Y guide rail 2-6, and the first photoelectric sensor and CCD assembly 2-7 are also arranged on the mounting base 2-2, and the special-shaped A first sensor sheet is provided on the cutter head device 3 corresponding to the first photoelectric sensor, and the first photoelectric sensor cooperates with the first sensor to determine the zero point of the first servo motor 2-4. When in use, first position the zero point of the first servo motor 2-4 through the alignment of the first photoelectric sensor and the first sensor sheet, and then control the cutting head device to move downward to perform pre-scribing. After the pre-scribing is completed, the CCD assembly 2-7 Control the action of each first servo motor 2-4 according to the front and rear positions of the scribing line, and adjust the cutter heads of a plurality of special-shaped scribing units 2 to the same straight line in the front and rear directions. Such an adjustment method has simple and reliable structure, high adjustment efficiency, high adjustment accuracy and good stability.

As a preferred structure of the X-direction moving structure, the knife beam 1 is a marble knife beam, and the first grating scale 1-1, the first linear motor 1-2, and the X-guiding rail 1 are installed on the marble knife beam. -3. The second photoelectric sensor, the first grating ruler 1-1 is fixed on the side of the marble knife beam along the X direction, and the stator of the first linear motor 1-2 is strip-shaped and fixed on the marble knife beam along the X direction On the same side of the knife beam, two movers are installed on the stator of the first linear motor 1-2, and the movers of the two first linear motors 1-2 are respectively connected with the moving parts of the two special-shaped marking units 2. The plate 2-1 is fixedly connected and the moving plate 2-1 is slidably embedded on the X guide rail 1-3, and the first reading head is fixed on the moving plate 2-1 corresponding to the first grating ruler 1-1, One of the moving plates 2-1 is fixed with a second sensor sheet corresponding to the second photoelectric sensor, and the second sensor sheet cooperates with the second photoelectric sensor to determine the zero point of the mover of the first linear motor 1-2. When in use, the second photoelectric sensor is aligned with the second sensor sheet to detect the zero point of the mover of the first linear motor 1-2. Since each moving plate 2-1 is equipped with a reading head and reads the same The data on the grating ruler, so only one moving plate 2-1 is equipped with the second sensor piece, after the mover detects the zero point, the position of the other movers is also determined according to the reading head; determine the zero point Finally, according to the program set for special-shaped cutting, the X-direction moving distance is strictly controlled by the first grating ruler 1-1 and the first reading head, and each cutter head is moved to the target position.

Further, the first servo motor 2-4 is fixed on the mounting base 2-2, the first servo motor 2-4 and the first lead screw 2-3 are connected by synchronous belt transmission, and the first servo motor 2 -4 and the first lead screw 2-3 are located on the same side of the synchronous belt. Compared with the structure in which the first servo motor 2-4 directly drives the first lead screw 2-3, on the one hand, the installation space is greatly reduced, The structure is more compact. On the other hand, if the lead screw is directly driven to run, the center of gravity of the cutter head is forward, which is not conducive to the movement of the cutter head, and there is an eccentric moment.

Referring to Fig. 4-Fig. 8, preferably, the special-shaped cutting head device 3 includes a fixed frame 3-1, a second linear motor 3-2, a sliding frame 3-3, and a special-shaped cutter wheel mechanism 3-4, and the fixed The frame 3-1 is fixed on the nut piece 2-5 and is slidably installed on the Y guide rail 2-6, the stator of the second linear motor 3-2 is fixedly connected with the fixed frame 3-1, and the The mover of the second linear motor 3-2 is fixedly connected with the sliding frame 3-3, and the fixed frame 3-1 and the sliding frame 3-3 are slidably connected to the guide rail pair 3-5 through Z, and the fixed frame 3-1 is connected with the sliding frame 3-3 through the first extension spring 3-6, the axis of the second linear motor 3-2, the Z guide rail pair 3-5, the first extension spring 3-6 three All of them are arranged in the Z direction, and the special-shaped cutter wheel mechanism 3-4 is fixed on the sliding frame 3-3; the second reading head 3-7 or the second grating ruler 3-7 are installed on the fixed frame 3-1. 8, and the second grating ruler 3-8 or the second reading head 3-7 is correspondingly arranged on the sliding frame 3-3, and the second grating ruler 3-8 cooperates with the second reading head 3-7 to Determine the downward movement distance of the second linear motor 3-2; the fixed frame 3-1 is provided with a third photoelectric sensor 3-9, and the sliding frame 3-3 is correspondingly equipped with a third sensor sheet 3-10, The third photoelectric sensor 3-9 cooperates with the third sensor sheet 3-10 to determine the zero point position of the second linear motor 3-2; also includes a controller, the second reading head 3-7, the third photoelectric sensor 3 -9 are all electrically connected to the controller, and the controller controls the action of the second linear motor 3-2. Here, in order to prevent the cutter wheel from damaging the glass and at the same time improve the overall cutting efficiency, it is easy for those skilled in the art to design, first use the position mode to lower the cutter wheel at a relatively high speed until it is about to touch the glass, and then use the constant force mode to precisely cut the glass. Cutting, on the one hand, while ensuring the quality, it saves the time of dry running of the tool and improves the overall cutting efficiency; on the other hand, if only the constant force mode is used, the acceleration will be constant, and it will continue to accelerate. When it reaches the glass, the cutter wheel will If the speed is too high, a collision accident will occur, so running in position mode before constant force mode can also avoid collision. The position mode and the constant force mode are integrated in the controller of the second linear motor 3-2, which belongs to the mature technology in the field of linear motors, and first uses other modes to run the cutter wheel close to the glass, and then runs in the constant force mode. Also be the technology that existing cutter head device has adopted.

The use of such a cutter head device structure has the following advantages: 1. The cutter wheel structure is driven by a linear motor. Using the structural characteristics of the linear motor itself, the pressure output is stable, the pressure output range is wide, the pressure output resolution is high, and it is easy to maintain. ;2 It is equipped with a photoelectric sensor and a sensor sheet, as well as a grating ruler and a reading head. The former is used to detect the zero point of the linear motor, and the latter is used to accurately control the running distance of the linear motor. The combination of the two can accurately measure the knife The distance between the wheel and the glass surface controls the running distance of the linear motor, and the positioning accuracy is high, which further improves the accuracy of glass cutting. In addition, the constant force mode is controlled to run at a small distance, which greatly reduces the friction when the cutter wheel touches the glass. 3. Compared with the cylinder pressurization method and the servo motor drive cam pressurization method, the cutting equipment equipped with this device can cope with more specifications of products, and can be qualified for cutting with higher precision requirements. OLED panels and thinner panels have stronger product compatibility and market competitiveness.

During use, the fixed mount 3-1 is fixed on the nut part 2-5, so that the axis of the second linear motor 3-2, the Z guide rail pair 3-5, and the extension spring are all in a vertical state. When the device was not working, components such as the sliding frame 3-3, the second linear motor 3-2 mover, the special-shaped cutter wheel mechanism 3-4 were all suspended and supported on the fixed frame 3-1 by extension springs; The three photoelectric sensors 3-9 align with the third sensor sheet 3-10 to generate an alignment signal, which is sent to the controller, and the controller records this position as the zero position of the second linear motor 3-2, and records the second linear motor 3-2. The reading head 3-7 reads a on the second grating ruler 3-8, and then controls the mover of the second linear motor 3-2 to move downward until the cutter wheel touches the glass surface. The contact judgment here is a mature technology, namely Set a feedback pressure, the mover starts to drop from zero, and there is no feedback pressure during the process. When it touches the glass, a feedback pressure is generated and gradually increases. When the preset feedback pressure is reached, the cutter wheel is considered to be in contact with the glass. At this moment, read the reading b of the second grating ruler 3-8, then the height of the second linear motor 3-2 zero point from the glass is b-a, and the second grating ruler 3-8 is used to measure the distance here, and the precision is higher. After the measurement is completed, the mover of the second linear motor 3-2 is controlled to rise until the controller receives the alignment signal again. At this time, the controller controls the second linear motor 3-2 to descend in position mode until it is about to touch the glass. The "coming in contact" program here can preset a difference, such as 50μm, and the distance control of this descending process is completed by the second grating ruler 3-8, with higher accuracy, that is, the control drops b-a-50μm from zero; when the cutter wheel When descending to the preset height, the controller controls the second linear motor 3-2 to continue descending in constant force mode until it reaches the pressure value set by the equipment. In the subsequent cutting process, the second linear motor 3-2 continues to descend with constant force. The mode outputs the set pressure value, so that even if there are fluctuations on the glass surface, the height of the knife wheel can be adjusted adaptively to ensure a constant cutting pressure, thereby completing high-precision cutting.

Further, the fixing frame 3-1 includes a stator fixing part 3-1-1, the second linear motor 3-2 is bar-shaped and provided with two, and the stator of the second linear motor 3-2 is covered with The outside of the mover, and the stator is inserted and fixed in the stator fixing part 3-1-1, and the sliding frame 3-3 includes a sliding plate 3-3-1, a mover pressure head 3-3-2, a mover fixing part 3-3-3, the mover press head 3-3-2 and the mover fixing part 3-3-3 are fixed on the sliding plate 3-3-1, and the second linear motor 3- 2, the mover protrudes from both ends of the stator, and the upper and lower ends of the mover are respectively fixedly connected with the mover pressure head 3-3-2 and the mover fixing part 3-3-3, and the special-shaped cutter wheel mechanism 3- 4 is installed on the slide plate 3-3-1. Here, contrary to the commonly used rod-shaped second linear motor 3-2, the outer ring is the stator and the inner ring is the mover, and the structure is more compact; when the output pressure value of the cutting head device remains unchanged, the two Two rod-shaped second linear motors 3-2 are used in parallel to replace a more powerful rod-shaped second linear motor 3-2, the cost is lower, and the overall size of the cutter head device is smaller. In the present invention, two parallel rod-shaped second linear motors 3-2 are used to provide power, which has stronger controllability and flexibility compared with cylinders, and has higher thrust density compared with traditional servo motors, and has fast speed, The advantages of low inertia and zero cogging can easily achieve high positioning accuracy of sub-micron level. In addition, the output pressure resolution of the rod-shaped second linear motor 3-2 can reach 0.01N, and the continuous thrust output by the two rod-shaped second linear motors 3-2 in parallel can reach 40N.

As a preferred installation structure of the second grating ruler 3-8 and the second reading head 3-7, the middle part of the sliding plate 3-3-1 is provided with a bar-shaped hole, and the stator fixing part 3-1-1 and the A second reading head 3-7 is fixed on the opposite surface of the sliding plate 3-3-1, and the second reading head 3-7 is placed in the strip-shaped hole, and the inner wall of the strip-shaped hole corresponds to the second reading The head 3-7 is fixed with a second grating ruler 3-8, which has a more compact structure and takes up less space. The present invention uses the second grating ruler 3-8, the second reading head 3-7 to cooperate with two parallel rod-shaped second linear motors 3-2 to perform precise positioning. Further preferably, the resolution of the selected second grating ruler 3-8 can reach 1nm, and normal identification can also be guaranteed under the high-speed operation of 100m/s. The installation tolerance of the second grating ruler 3-8 is loose, and the installation is simple and quick. In addition, the second grating scale 3-8 has extremely strong anti-pollution ability, and can resist pollution from dust, scratches and light oil stains.

Further, the surface of the stator fixing member 3-1-1 opposite to the sliding plate 3-3-1 is provided with a closed groove for embedding the second reading head 3-7, and the upper edge of the groove By allowing the wire groove 3-11 to extend to the upper end surface of the stator fixing part 3-1-1, the fixing frame 3-1 also includes a right side plate 3-1-2, and the right side plate 3-1-2 A wire clamp 3-12 located above the stator fixture 3-1-1 is fixed, and the cable of the second reading head 3-7 passes through the wire slot 3-11 and is fixed in the wire clamp 3-12 The cables of the stators of the two second linear motors 3-2 are also fixed in the wire clamp 3-12, which has a compact structure and more neat wiring.

Preferably, the third photoelectric sensor 3-9 is fixed at the lower part of the right side plate 3-1-2, and the third sensor sheet 3-10 is fixed at the bottom of the mover fixing part 3-3-3. On the lower end face, when the third photoelectric sensor 3-9 is horizontally opposed to the third sensor sheet 3-10, the second linear motor 3-2 is at the zero position, which can avoid interference from other structures, and the structural arrangement is more reasonable.

Further, the fixed frame 3-1 also includes a mounting plate 3-1-3, a left side plate 3-1-4, a front side plate 3-1-5, a top plate 3-1-6, the mounting plate 3 -1-3 is fixed on the nut piece 2-5 and is slidably installed on the Y guide rail 2-6, the mounting plate 3-1-3, the left side plate 3-1-4, and the right side plate 3- 1-2. The front side plate 3-1-5 and the top plate 3-1-6 jointly form a cuboid shell structure with an open bottom, and the top plate 3-1-6 is provided with outlet holes corresponding to the wire clips 3-12.

Further, the inner surface of the left side plate 3-1-4 is also fixed with two mounting strips 3-13 respectively located at the front and rear edges thereof, and the Z guide rail pair 3-5 is provided with two and two The guide parts of the Z guide rail pair 3-5 are respectively installed on the two installation bars 3-13, and the moving parts of the Z guide rail pair 3-5 are fixed on the slide plate 3-3-1. The setting of the installation bar 3-13 makes the installation of the Z guide rail pair 3-5 more convenient, and at the same time, the position deviation of the left side plate 3-1-4 and the sliding plate 3-3-1 is compensated by the installation bar 3-13, It is ensured that the two guide rails of the Z guide rail pair 3-5 are installed in the same plane.

Further, the upper end of the installation bar 3-13 is vertically fixed with an upper tension spring strut 3-14 facing inward, and the lower spring strut 3-15 is fixed on the mover fixing part 3-3-3. The two ends of an extension spring 3-6 are hooked with the upper extension spring pillar 3-14 and the lower spring pillar 3-15 respectively.

Preferably, the Z guide rail pair 3-5 is a cross roller guide rail. In the cross roller guideway, the precision rollers in the roller cage are combined perpendicularly to each other, and the roller cage is installed on the 90° V-shaped groove rolling surface on the special track, and the two rows of roller guideways are assembled in parallel, which can Bear loads from four directions. By applying preload to the Cross Roller Guide, the Cross Roller Guide has the characteristics of no backlash, high rigidity, and light action.

Further, it also includes a blowing mechanism 3-16 fixed on the fixed frame 3-1 and aligned with the cutter wheel of the cutter wheel mechanism. .

Referring to Fig. 1 and Fig. 3, a special-shaped scribing structure of a multi-knife scribing machine includes a knife beam 1, and at least two special-shaped scribing units 2 are arranged on the knife beam 1, and the special-shaped scribing unit 2 includes The moving plate 2-1 that is installed on the knife beam 1 is slided in X direction, and the second servo motor 2-8 is fixed on the moving plate 2-1, and the output shaft of the second servo motor 2-8 faces downward and simultaneously The shaft is fixedly connected with a second lead screw 2-9, the second lead screw 2-9 is set with a nut seat 2-10, the moving plate 2-1 is fixed with a Z guide rail 2-11, and the nut seat 2-10 is slidably embedded on the Z guide rail 2-11, a fourth photoelectric sensor is arranged on the moving plate 2-1, and a fourth photoelectric sensor is arranged on the nut base 2-10 corresponding to the fourth photoelectric sensor. Four sensor sheets, the fourth photoelectric sensor cooperates with the fourth sensor sheet to determine the zero point position of the second servo motor 2-8, the nut seat 2-10 is also fixed with the mounting seat 2-2, the installation A first lead screw 2-3 arranged along the Y direction is rotatably mounted on the seat 2-2, and the first lead screw 2-3 is connected with a first servo motor 2-4 that drives its rotation, and the first lead screw 2-3 2-3 is covered with a nut piece 2-5, and the Y guide rail 2-6 is also fixed on the mounting seat 2-2, and the nut piece 2-5 is fixedly connected with a sliding installation on the Y guide rail 2- 6 on the pressurized base 2-14, the pressurized base 2-14 is equipped with a constant pressure cylinder 2-12, and the output end of the constant pressure cylinder 2-12 is fixedly connected with the special-shaped cutter wheel mechanism 3-4 , and the cylinder body of the constant pressure cylinder 2-12 is connected with the special-shaped cutter wheel mechanism 3-4 through the second tension spring 2-13, and the first mounting seat 2-2 or the nut seat 2-10 is also provided with a A photoelectric sensor and a CCD assembly 2-7, the pressurized base 2-14 is provided with a first sensor sheet corresponding to the first photoelectric sensor, and the first photoelectric sensor cooperates with the first sensor to determine the first servo Zero position of motors 2-4. This structure is an integrated structure after the cutting head device is limited to a specific cylinder pressurization method. During use, the fourth photoelectric sensor cooperates with the fourth sensor sheet to determine the zero point position of the second servo motor 2-8. After the zero point is determined, the second servo motor 2-8 acts to drive the cutter head to move downwards and contact the glass. Here The contact is determined by the feedback force, which belongs to the mature technology in this field. After touching the glass, it rises to zero, and then drops to the point where it is about to touch the glass. Here, the imminent contact is realized by setting a distance difference. The constant pressure cylinder 2-12 acts to output constant pressure to cut the glass. When in use, the second photoelectric sensor is aligned with the second sensor sheet to detect the zero point of the mover of the first linear motor 1-2. Since each moving plate 2-1 is equipped with a reading head and reads the same The data on the grating ruler, so only one moving plate 2-1 is equipped with the second sensor piece, after the mover detects the zero point, the position of the other movers is also determined according to the reading head; determine the zero point Finally, according to the program set for special-shaped cutting, the X-direction moving distance is strictly controlled by the first grating ruler 1-1 and the first reading head, and each cutter head is moved to the target position.

As a preferred structure of the X-direction moving structure, the knife beam 1 is a marble knife beam, and the first grating scale 1-1, the first linear motor 1-2, and the X-guiding rail 1 are installed on the marble knife beam. -3. The second photoelectric sensor, the first grating ruler 1-1 is fixed on the side of the marble knife beam along the X direction, and the stator of the first linear motor 1-2 is strip-shaped and fixed on the marble knife beam along the X direction On the same side of the knife beam, two movers are installed on the stator of the first linear motor 1-2, and the movers of the two first linear motors 1-2 are respectively connected with the moving parts of the two special-shaped marking units 2. The plate 2-1 is fixedly connected and the moving plate 2-1 is slidably embedded on the X guide rail 1-3, and the moving plate 2-1 is also fixed with a first reading head corresponding to the first grating ruler 1-1, A second sensor sheet is fixed corresponding to the second photoelectric sensor, and the second sensor sheet cooperates with the second photoelectric sensor to determine the zero point of the mover of the first linear motor 1-2.

Further, the first servo motor 2-4 is fixed on the mounting base 2-2, the first servo motor 2-4 and the first lead screw 2-3 are connected by synchronous belt transmission, and the first servo motor 2 -4 and the first lead screw 2-3 are located on the same side of the synchronous belt. Compared with the structure in which the first servo motor 2-4 directly drives the first lead screw 2-3, on the one hand, the installation space is greatly reduced, The structure is more compact. On the other hand, if the lead screw is directly driven to run, the center of gravity of the cutter head is forward, which is not conducive to the movement of the cutter head, and there is an eccentric moment.

The above specific structure and size data are specific descriptions of the preferred embodiments of the present invention, but the invention is not limited to the embodiments, and those skilled in the art can also make Various equivalent modifications or replacements are included within the scope defined by the claims of the present application.

Claims (10)

1. A special-shaped scribing structure of a multi-knife scribing machine, including a knife beam (1), and at least two special-shaped scribing units (2) are arranged on the knife beam (1), characterized in that: the special-shaped The scribing unit (2) includes a moving plate (2-1) slidingly installed on the knife beam (1) in the X direction, and a mounting base (2-2) is fixed on the moving plate (2-1). A first lead screw (2-3) arranged along the Y direction is rotatably installed on the seat (2-2), and the first lead screw (2-3) is connected with a first servo motor (2-4) to drive its rotation. ), the first lead screw (2-3) is set with a nut piece (2-5), and the mounting seat (2-2) is also fixed with a Y guide rail (2-6), and the nut piece (2-5) is fixedly connected with the special-shaped cutting head device (3) which is slidably installed on the Y guide rail (2-6), and the first photoelectric sensor and CCD assembly are also arranged on the mounting base (2-2) (2-7), the special-shaped cutting head device (3) is provided with a first sensor sheet corresponding to the first photoelectric sensor, and the first photoelectric sensor cooperates with the first sensor to determine the first servo motor ( 2-4) zero point, when in use, firstly position the zero point of the first servo motor (2-4) through the alignment of the first photoelectric sensor and the first sensor sheet, and then control the downward movement of the special-shaped cutting head device (3) Carry out pre-scribing. After the pre-scribing is completed, the CCD component (2-7) controls the action of each first servo motor (2-4) according to the front and rear positions of the scribing line, and cuts the special-shaped cutting of multiple special-shaped scribing units (2). The cutter head device (3) is adjusted to the same straight line in the front-back direction. 2. The special-shaped scribing structure of a multi-knife scribing machine according to claim 1, characterized in that: the knife beam (1) is a marble knife beam, and the first grating ruler is installed on the marble knife beam (1-1), the first linear motor (1-2), the X-direction rail (1-3), the second photoelectric sensor, the first grating scale (1-1) is fixed on the marble knife beam along the X direction The side of the first linear motor (1-2), the stator of the first linear motor (1-2) is strip-shaped and fixed on the same side of the marble knife beam along the X direction, the stator of the first linear motor (1-2) is installed with two Movers, the movers of the two first linear motors (1-2) are respectively fixedly connected to the moving plates (2-1) of the two special-shaped marking units (2) and the moving plates (2-1) slide Embedded on the X guide rail (1-3), the moving plate (2-1) is also fixed with the first reading head corresponding to the first grating ruler (1-1), and one of the moving plates (2- 1) A second sensor sheet is fixed on the top corresponding to the second photoelectric sensor, and the second sensor sheet cooperates with the second photoelectric sensor to determine the zero point of the mover of the first linear motor (1-2). 3. The special-shaped scribing structure of a multi-knife scribing machine according to claim 2, characterized in that: the first servo motor (2-4) is fixed on the mounting base (2-2), and the The first servo motor (2-4) and the first lead screw (2-3) are connected through a synchronous belt drive, and the first servo motor (2-4) and the first lead screw (2-3) are located on the same side of the synchronous belt. side. 4. The special-shaped scribing structure of a multi-knife scribing machine according to claim 3, characterized in that: the special-shaped cutting head device (3) includes a fixed frame (3-1), a second linear motor ( 3-2), sliding frame (3-3), special-shaped cutter wheel mechanism (3-4), the fixed frame (3-1) is fixed on the nut piece (2-5) and is slidably installed on the Y direction On the guide rail (2-6), the stator of the second linear motor (3-2) is fixedly connected to the fixed frame (3-1), and the mover of the second linear motor (3-2) is connected to the The sliding frame (3-3) is fixedly connected, the fixed frame (3-1) and the sliding frame (3-3) are slidingly connected to the guide rail pair (3-5) through Z, and the fixed frame (3-1 ) and the sliding frame (3-3) are also connected through the first tension spring (3-6), the axis of the second linear motor (3-2), the Z guide rail pair (3-5), the first The tension springs (3-6) are all arranged in the Z direction, and the special-shaped cutter wheel mechanism (3-4) is fixed on the sliding frame (3-3); the fixed frame (3-1) is equipped with The second reading head (3-7) or the second grating ruler (3-8), and the second grating ruler (3-8) or the second grating ruler (3-8) is correspondingly arranged on the sliding frame (3-3) -7), the second grating ruler (3-8) cooperates with the second reading head (3-7) to determine the downward movement distance of the second linear motor (3-2); the fixed frame (3- 1) A third photoelectric sensor (3-9) is arranged on it, and a third sensor sheet (3-10) is correspondingly arranged on the sliding frame (3-3). The third photoelectric sensor (3-9) and the third The sensor sheet (3-10) cooperates to determine the zero point position of the second linear motor (3-2); it also includes a controller, the second reading head (3-7), the third photoelectric sensor (3-9) All are electrically connected with the controller, and the controller controls the action of the second linear motor (3-2). 5. The special-shaped scribing structure of a multi-knife scribing machine according to claim 4, characterized in that: the fixing frame (3-1) includes a stator fixing part (3-1-1), and the first The second linear motor (3-2) is rod-shaped and has two sets. The stator of the second linear motor (3-2) is outside the mover, and the stator is inserted and fixed on the stator fixing part (3-1- 1), the sliding frame (3-3) includes a sliding plate (3-3-1), a mover pressure head (3-3-2), a mover fixing piece (3-3-3), the Both the mover pressure head (3-3-2) and the mover fixing part (3-3-3) are fixed on the sliding plate (3-3-1), and the second linear motor (3-2) The mover protrudes from both ends of the stator, and the upper and lower ends of the mover are respectively fixedly connected with the mover pressure head (3-3-2) and the mover fixing part (3-3-3). The mechanism (3-4) is installed on the sliding plate (3-3-1). 6. The special-shaped scribing structure of a multi-knife scribing machine according to claim 5, characterized in that: a strip-shaped hole is opened in the middle of the sliding plate (3-3-1), and the stator fixing part (3 -1-1) The surface opposite to the sliding plate (3-3-1) is fixed with a second reading head (3-7), and the second reading head (3-7) is placed in the strip hole , a second grating ruler (3-8) is fixed on the inner wall of the strip hole corresponding to the second reading head (3-7). 7. The special-shaped scribing structure of a multi-knife scribing machine according to claim 6, characterized in that: the stator fixing part (3-1-1) is opposite to the sliding plate (3-3-1) The surface of the surface is provided with a closed groove for embedding the second reading head (3-7), and the upper edge of the groove extends to the stator fixing part (3-1-1) by letting the wire groove (3-11) The upper end surface of the fixed frame (3-1) also includes a right side plate (3-1-2), and the right side plate (3-1-2) is fixed with the stator fixing part (3-1- 1) The upper clamp (3-12), the cable of the second reading head (3-7) passes through the wire slot (3-11) and is fixed in the clamp (3-12), The cables of the stators of the two second linear motors (3-2) are also fixed in the wire clamps (3-12). 8. A special-shaped scribing structure of a multi-knife scribing machine, including a knife beam (1), and at least two special-shaped scribing units (2) are arranged on the knife beam (1), characterized in that: the special-shaped The scribing unit (2) includes a moving plate (2-1) slidingly installed on the knife beam (1) in the X direction, and a second servo motor (2-8) is fixed on the moving plate (2-1). The output shaft of the second servo motor (2-8) faces downward and is fixedly connected with the second lead screw (2-9) coaxially, and the second lead screw (2-9) is sleeved with a nut seat (2-10 ), the Z guide rail (2-11) is fixed on the moving plate (2-1), the nut base (2-10) is slidably embedded on the Z guide rail (2-11), and the The moving plate (2-1) is provided with a fourth photoelectric sensor, and the nut seat (2-10) is provided with a fourth sensor sheet corresponding to the fourth photoelectric sensor, and the fourth photoelectric sensor and the fourth sensor sheet It is used to determine the zero point position of the second servo motor (2-8), and the mounting base (2-2) is fixed on the nut base (2-10), and the mounting base (2-2) is rotatably installed There is a first lead screw (2-3) arranged along the Y direction, the first lead screw (2-3) is connected with a first servo motor (2-4) to drive its rotation, and the first lead screw ( 2-3) A nut piece (2-5) is set on the upper sleeve, and a Y guide rail (2-6) is also fixed on the mounting base (2-2), and the nut piece (2-5) is fixedly connected with a sliding The pressurized base (2-14) installed on the Y guide rail (2-6), the pressurized base (2-14) is equipped with a constant pressure cylinder (2-12), the constant The output end of the pressure cylinder (2-12) is fixedly connected to the special-shaped cutter wheel mechanism (3-4), and the cylinder body of the constant pressure cylinder (2-12) and the special-shaped cutter wheel mechanism (3-4) are connected by a second pull The spring (2-13) is connected, and the first photoelectric sensor and CCD assembly (2-7) are also arranged on the mounting seat (2-2) or the nut seat (2-10), and the pressurized base (2 -14) A first sensor sheet is provided corresponding to the first photoelectric sensor, and the first photoelectric sensor cooperates with the first sensor to determine the zero point position of the first servo motor (2-4). A photoelectric sensor aligns with the first sensor sheet to position the zero point of the first servo motor (2-4), and then controls the special-shaped cutter wheel mechanism (3-4) to move downward for pre-marking. After the pre-marking is completed, the CCD The component (2-7) controls the action of each first servo motor (2-4) according to the front and rear positions of the scribing line, and adjusts the special-shaped cutter wheel mechanism (3-4) of multiple special-shaped scribing units (2) to the front-rear direction on the same straight line. 9. The special-shaped scribing structure of a multi-knife scribing machine according to claim 8, characterized in that: the knife beam (1) is a marble knife beam, and the first grating ruler is installed on the marble knife beam (1-1), the first linear motor (1-2), the X-direction rail (1-3), the second photoelectric sensor, the first grating scale (1-1) is fixed on the marble knife beam along the X direction The side of the first linear motor (1-2), the stator of the first linear motor (1-2) is strip-shaped and fixed on the same side of the marble knife beam along the X direction, the stator of the first linear motor (1-2) is installed with two Movers, the movers of the two first linear motors (1-2) are respectively fixedly connected to the moving plates (2-1) of the two special-shaped marking units (2) and the moving plates (2-1) slide Embedded on the X-guiding rail (1-3), the moving plate (2-1) is also fixed with the first reading head corresponding to the first grating ruler (1-1), and the second photoelectric sensor is fixed with The second sensor sheet cooperates with the second photoelectric sensor to determine the zero point of the mover of the first linear motor (1-2). 10. The special-shaped scribing structure of a multi-knife scribing machine according to claim 9, characterized in that: the first servo motor (2-4) is fixed on the mounting base (2-2), and the The first servo motor (2-4) is connected with the first lead screw (2-3) through a synchronous belt drive.