CN114211231B - Automatic installation equipment for gauze - Google Patents

Abstract

The invention discloses automatic gauze mounting equipment, which comprises a gantry type three-axis operating platform and a batten pressing device, wherein the gantry type three-axis operating platform comprises a support, a workbench and a three-axis gantry type combined module, and is provided with an absolute coordinate system o-xyz; the pressing device comprises a pressing head frame which is rotationally connected to a z-axis module sliding block, a pressing head is arranged at the lower part of the pressing head frame, a telescopic rod is hinged between one side of the pressing head frame and the z-axis module, and a compression spring is arranged between an outer rod and the outer end of an inner rod of the telescopic rod; the equipment of the invention also comprises a gauze conveying mechanism for conveying the gauze, a batten conveying mechanism for conveying battens and a clamping mechanism for clamping the outer frame of the screen window. The equipment mounting pressing strip is quick and reliable, the labor intensity is reduced, and the production efficiency of the formed screen window is improved.

Description

Automatic installation equipment for gauze

Technical Field

The invention belongs to the technical field of construction machinery equipment, and particularly relates to automatic gauze mounting equipment.

Background

The screen window has the functions of preventing mosquitoes, preventing dust, transmitting light and the like, the screen mesh is generally made of nylon material screen mesh or glass fiber screen mesh, the outer frame of the screen window is generally made of aluminum, the appearance is attractive, and the screen window is not easy to deform. At present, in the molding installation of the screen window, a worker usually flattens and spreads a cut screen in advance on an outer frame of the screen window, presses a pressing strip into a groove on the periphery of the outer frame of the screen window, and cuts redundant materials on the periphery of the screen window after the pressing. Because workers perform rough cutting on the screen according to the size of the outer frame of the screen before installation, excessive excess materials may occur; when the periphery of the screen is cut after being pressed, the edge is required to be paid attention to, the integral appearance of the screen window is influenced due to too long edge, and the screen window is likely to be out of the screen when the edge is too short. When the pressing strip is pressed manually, attention needs to be paid to the fact that the gauze cannot wrinkle, and the gauze is deformed and uneven meshes are caused due to the fact that the gauze is pulled to be too tight. Moreover, workers are easy to fatigue due to long-time manual work, and the problems of loose layering, excessive screen residual materials, screen skew and the like are inevitably generated, so that the installation quality is not high, and the use effect is influenced. The production efficiency and the product quality of the formed screen window are difficult to be further improved.

Disclosure of Invention

The invention provides automatic installation equipment for a gauze, which has the advantages of reliable installation of battens, centralized installation procedures, reduced labor intensity, improved production efficiency of a formed gauze window, ensured quality, easy realization of automation and capability of solving the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic gauze screen mounting device comprises a gantry type three-axis operating platform and a batten pressing device, wherein the gantry type three-axis operating platform comprises a support, a workbench and a three-axis gantry type combined module, and is provided with an absolute coordinate system o-xyz; the pressing device comprises a pressing head frame which is rotatably connected to a z-axis module sliding block, a pressing head is arranged at the lower part of the pressing head frame, a telescopic rod is hinged between one side of the pressing head frame and the z-axis module, and a compression spring is arranged between an outer rod and the outer end of an inner rod of the telescopic rod; the equipment is still including the layering conveying mechanism who is used for the layering conveying, layering conveying mechanism is including being located the storage axle and the layering guider of pressure head frame top, the storage axle rotates and sets up on the slider of z axle module, guider is including being located the layering stopper of pressure head top, the spill bearing roller that is located the layering stopper top and the discharging pipe that is located the pressure head positive rear, the layering stopper is fixed on the pressure head frame, the spill bearing roller passes through the bearing roller axle and installs on the pressure head frame, and the discharging pipe rigid coupling is in pressure head frame lower part, and the discharging pipe mouth of pipe is along the minimum that is higher than the pressure head most.

The x-axis module comprises an x-axis main shaft module and an auxiliary linear module, the x-axis module is fixed on the workbench, two ends of the y-axis module are respectively arranged on a sliding block of the x-axis main shaft module and a sliding block of the auxiliary linear module, and the z-axis module is arranged on a sliding block of the y-axis module; and the movement of each shaft of the three-shaft gantry type combined module is controlled by a corresponding stepping motor and a corresponding motor driver respectively.

The equipment is still including the gauze conveying mechanism who is used for transmitting the gauze, gauze conveying mechanism includes gauze axle, retrieves axle and transfer roller, and gauze axle, recovery axle and transfer roller rotate respectively to set up on the support, wherein gauze axle, recovery axle divide to be listed as in the workstation both sides, the transfer roller symmetry sets up between gauze axle and recovery axle, and the one end of retrieving the axle is connected with the output of retrieving the motor, retrieves the motor and installs on the support.

And tensioning rollers are respectively arranged between the conveying roller and the gauze shaft and between the conveying roller and the recovery shaft.

Be equipped with overspeed device tensioner on the transfer roller, overspeed device tensioner is including twisting the spring holder, and the torsional spring holder sets up through twisting the rotation of spring axle on the support, set up roller draw-in groove and round pin axle on the torsional spring holder, roller draw-in groove and round pin axle are located respectively and twist reverse spring axle both sides, and the roller one end of transfer roller is connected in the roller draw-in groove, twists reverse the epaxial cover of spring and establishes torsion spring, torsion spring's one end and the contact of twisting the spring holder, the other end and round pin axle contact.

An arc-shaped groove for the pressing strip to slide through is formed in the pressing strip limiting block; the pressure head is provided with a circumferential rail, and the circumferential rail is provided with a follow-up pipe in a sliding manner.

The layering conveying mechanism still includes the blend stop device, the blend stop device is including rotating two non return pawls that set up in the blend stop box, the ratchet of being connected with the storage hub, and the blend stop box is fixed on the slider of z axle module, the corotation and the reversal of ratchet are restricted respectively to two non return pawls that the symmetry set up, are connected with the spring between two non return pawls and the blend stop box inner wall respectively, set up the eccentric wheel between two non return pawls, the eccentric wheel is connected on the knob axle, the knob axle is installed on the blend stop box, the epaxial knob that sets up of knob, rotate the knob axle, the eccentric wheel can with any high vice contact in the two non return pawls.

The pressing strip conveying mechanism further comprises a laser body, the laser body is fixed on the pressing head frame, and a laser cutting head is fixed on the laser body.

The device also comprises a clamping mechanism for clamping the outer frame of the screen window, wherein the table surface of the workbench is provided with an elongated slot, the clamping mechanism comprises a right-angle positioning block and a clamping device, the clamping device comprises a semi-rotating plate, an arc-shaped slot is arranged on the semi-rotating plate by taking the rotating connection point of the elongated slot and the semi-rotating plate as the circle center, the arc-shaped slot is detachably connected with the elongated slot, one end of the semi-rotating plate is connected with a clamping support, a crank sliding block mechanism is formed by a wrench, the clamping support, a connecting plate and a push rod, and the push rod is connected with the clamping support through a sliding pair; the front end of the push rod is connected with a round unfilled corner top plate.

The invention adopts the structure, and has the advantages that:

(1) The gantry type operating platform has the advantages of high integration degree, compact integral structure of equipment and high automation degree, increases the flexibility of screen installation, and improves the production efficiency of the formed screen window;

(2) The three-axis movement of the invention ensures that the operation range is larger, and the three translational degrees of freedom of the equipment in space are relatively simple to control the motion of the equipment;

(3) The pressing strip pressing device is matched with the gantry type three-axis combined module, the pressing head realizes self-adaptive adjustment through the compression spring, the pressing strip can be reliably and continuously pressed into the pressing strip clamping groove of the outer frame of the screen window, a pressing mode that the pressing strip is pushed and retreated during manual pressing is abandoned, and the pressing strip is flat and is not easy to break;

(4) The gauze conveying mechanism can ensure that gauze conveying is smooth and stable, the recovery shaft collects and winds excess gauze, the gauze is discharged from the gauze shaft, the gauze is conveyed to the conveying roller and then is collected on the recovery shaft, and the whole process does not need manual coarse shearing and flattening of the gauze;

(5) The tensioning roller can keep the gauze flat in the conveying process, and meanwhile, the gauze keeps certain tension, so that the gauze is prevented from wrinkling when the gauze is fixed by the pressing strip;

(6) The tensioning device of the invention enables the component force of the tension force of the gauze to act against the conveying roller, so that the gauze is always in a tensioning state;

(7) The pressing strip conveying mechanism is matched with the pressing strip pressing device to realize automatic conveying of the pressing strips, the length of the pressing strips is released as required, waste is avoided, and the guide device can ensure that the pressing strips can accurately reach a designated position;

(8) According to the barrier strip device, the contact and the separation of the eccentric wheel and the non-return pawl are changed, so that the forward and reverse control of the ratchet wheel is realized, the pressing strip can be stopped in time when the pressure head stops, and the excessive or improper leading-out of the pressing strip can be avoided after the machine stops;

(9) The laser cutting head can automatically and quantitatively and directionally cut the screen, has smooth and attractive cut, replaces the traditional cutter for cutting, and simultaneously avoids scratching the outer frame of the screen window during manual cutting;

(10) The clamping mechanism is adjustable in position and angle relative to the workbench, and can clamp outer frames of screen windows of different sizes, and the screen windows can be clamped once to process screens on the periphery of the screen windows.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is an enlarged view (including the pressing device and the guiding device) at a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1 (including the tensioner on the recovery shaft side).

FIG. 4 is a schematic structural diagram of a barrier strip device according to an embodiment of the present invention.

Fig. 5 is a front view of the bar arrangement of fig. 7.

Fig. 6 is a top view of an embodiment of the present invention.

Fig. 7 is an enlarged view at C in fig. 1 (including the clamping means).

Figure 8 is a second angular view of the hold down device and guide device in an embodiment of the present invention.

In fig. 1, 11 support, 12 work bench, 13.X spindle module, 131.X axis stepping motor, 132 connecting shaft, 133.X spindle module slide block, 14 auxiliary linear module, 141 auxiliary linear module slide block, 15.Y axis module, 151.Y axis stepping motor, 152.Y axis module slide block, 16.Z axis module, 161.Z axis stepping motor, 162.Z axis module slide block, 2 pressing device, 31 gauze axis, 32 recovery axis, 33 conveying roller, 34 conveying roller, 35 tensioning roller, 36 tensioning roller, 37 tensioning device, 38 recovery motor, 41 storage axis, 42 barrier strip device, 51 clamping device.

In fig. 2, 21 is a head pressing frame, 22 is a pressing head, 23 is an expansion rod, 24 is a compression spring, 431 is a pressing bar limiting block, 432 is a concave carrier roller, 433 is a carrier roller shaft, 434 is a discharge pipe, 435 is a follow-up pipe, 436 is a circumferential rail, 437 is a laser body, and 438 is a laser cutting head.

In fig. 3, 11 is a support, 131.X axis stepping motor, 33 is a transmission roller, 331 is a roller shaft, 371 is a torsion spring seat, 372 is a roller shaft clamping groove, 373 is a torsion spring shaft, 374 is a pin shaft.

In fig. 4, 42 is a bar device, 421 is a bar box, 422 is a positive check pawl, 423 is a ratchet wheel, 424 is a spring II,425 is an eccentric wheel, 426 is a knob shaft.

In FIG. 5, 42. Bar device, 421. Bar box, 422. Forward check pawl, 423. Ratchet, 424. Spring II,425. Eccentric, 426. Knob shaft, 427. Reverse check pawl, 428. Spring I.

In fig. 6, 11 is a support, 12 is a workbench, 13.X axis module, 14 is an auxiliary linear module, 15.Y axis module, 16.Z axis module, 2 is a pressing device, 31 is a gauze shaft, 32 is a recovery shaft, 33 is a conveying roller, 34 is a conveying roller, 35 is a tensioning roller, 36 is a tensioning roller, 38 is a recovery motor, 41 is a storage shaft, 42 is a barrier strip device, 51 is a clamping device, and 52 is a right angle positioning block.

In FIG. 7, 12 is a workbench, 121 is a long groove, 14 is an auxiliary linear module, 511 is a semi-rotating plate, 512 is an arc-shaped groove, 513 is a clamping support, 514 is a wrench, 515 is a connecting plate, 516 is a push rod, 517 is a round unfilled corner top plate, 518 is a locking bolt, 519 is a butterfly bolt.

In fig. 8, 21 is a pressure head frame, 22 is a pressure head, 23 is an expansion rod, 24 is a compression spring, 431 is a pressure strip limiting block, 432 is a concave carrier roller, 433 is a carrier roller shaft, 434 is a discharge pipe, 435 is a follow-up pipe, 436 is a circumferential rail, 437 is a laser body.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention will be explained in detail by the following embodiments with reference to the attached drawings 1 to 8.

In view of the fact that the requirement of the existing forming screen window is large, the existing forming screen window is still in a transmission manual operation mode, and the production efficiency and the quality of products need to be improved, the embodiment provides the automatic screen window installation equipment, and aims to reduce the labor intensity of operators and efficiently and reliably complete screen installation.

As shown in fig. 1, the apparatus in this embodiment includes a gantry-type three-axis operating platform, which includes a support 11, a workbench 12, and a three-axis gantry-type combined module, and is provided with an absolute coordinate system o-xyz; the three-axis gantry type combined module comprises an x-axis module, a y-axis module 15 and a z-axis module 16, wherein the x-axis module comprises an x-spindle module 13 and an auxiliary linear module 14; the worktable 12 is fixed on the bracket 11, the x spindle module 13 and the auxiliary linear module 14 are fixed on the worktable 12, two ends of the y axis module 15 are respectively arranged on the x spindle module slide block 133 and the auxiliary linear module slide block 141, and the z axis module 16 is arranged on the y axis module slide block 152; the movement of each shaft of the three-shaft gantry type combined module is controlled by a corresponding stepping motor and a corresponding motor driver respectively. The module is synchronous belt type straight line module, and the triaxial operation platform adopts linear module planer-type to build here, and this kind of buildding possesses application advantages such as repeated positioning accuracy is high, transmission performance is stable, payload is big, can realize three-dimensional space motion, and workstation 12 has realized that planer-type module is stable to be placed in the position above the plane, and support 11 makes workstation 12 keep suitable operation height. When installing the screen, place the screen frame on the table 12.

As shown in fig. 2 and 8, the apparatus of this embodiment further includes a pressing strip pressing device 2, the pressing device 2 includes a pressing head frame 21 rotatably connected to the z-axis module slider 162, a pressing head 22 is disposed at a lower portion of the pressing head frame 21, an expansion link 23 is hinged between one side of the pressing head frame 21 and the z-axis module 16, and a compression spring 24 is disposed between an outer rod of the expansion link 23 and an outer end of the inner rod, so that when the pressing head frame 21 moves along with the three-axis gantry module in a three-dimensional space, the pressing head 22 can maintain a pressing force on the pressing strip under the action of the compression spring 24, and can adaptively adjust according to a depth of the clamping groove, so that the pressing strip can be reliably pressed into the clamping groove of the pressing strip of the screen window frame, and is flat and is not easy to break. In the prior art, when the press strip is manually pressed, the press wheel is mostly used, a pressing mode of pushing and retreating is adopted, the pressing speed is low, and the press strip can be broken due to improper force application.

As shown in fig. 1 and fig. 6, the apparatus of the present embodiment further includes a gauze conveying mechanism for conveying gauze, the gauze conveying mechanism includes a gauze shaft 31, a recovery shaft 32 and conveying rollers 33, 34, the gauze shaft 31, the recovery shaft 32 and the conveying rollers 33, 34 are respectively rotatably disposed on the support 11, wherein the gauze shaft 31 and the recovery shaft 32 are respectively disposed at two sides of the worktable 12, the conveying rollers 33, 34 are symmetrically disposed between the gauze shaft 31 and the recovery shaft 32, one end of the recovery shaft 32 is connected to an output end of a recovery motor 38, and the recovery motor 38 is mounted on the support 11. The gauze is timely conveyed according to the requirement of the dosage, the conveying stroke is controllable, the gauze does not need to be roughly cut in advance, and the time is saved. The recovery motor 38 is started, the remaining screen waste can be wound on the recovery shaft 32 without being collected independently, the process is concentrated and reasonably arranged, and meanwhile, the screen is driven to move, and the screen shaft 31 rotates to release the screen. This sequential arrangement of the screen shaft 31, the two transfer rollers 33, 34 and the recovery shaft 32 allows the screen to remain flat on the screen frame. A tension roller 36 is provided between the feed roller 34 and the screen shaft 31, tension rollers 35 are provided between the feed roller 33 and the recovery shaft 32, respectively, and the developed screen has a certain tension by the tension rollers 35 and 36, and can have an anti-wrinkle effect when the bead is pressed in.

As shown in fig. 3, in this embodiment, the two conveying rollers 33 and 34 are respectively provided with the tensioning device 37, the tensioning device 37 includes a torsion spring seat 371, the torsion spring seat 371 is rotatably disposed on the bracket 11 through a torsion spring shaft 373, the torsion spring seat 371 is provided with a roller shaft clamping groove 372 and a pin shaft 374, the roller shaft clamping groove 372 and the pin shaft 374 are respectively located on two sides of the torsion spring shaft 373, one end of the roller shaft 331 of the conveying roller 33 is connected in the roller shaft clamping groove 372, the torsion spring shaft 373 is sleeved with the torsion spring, one end of the torsion spring contacts with the torsion spring seat 371, and the other end of the torsion spring contacts with the pin shaft 374. The tension device 37 of the delivery roll 33 on the recovery shaft 32 side is symmetrical to the tension device 37 of the delivery roll 34 on the screen shaft 31 side.

As shown in fig. 2 and fig. 8, the apparatus of this embodiment further includes a pressing bar conveying mechanism for conveying the pressing bar, the pressing bar conveying mechanism includes a storage shaft 41 located above the pressing head frame 21 and a pressing bar guiding device, the storage shaft 41 is rotatably disposed on the z-axis module slider 162, the guiding device includes a pressing bar limiting block 431 located above the pressing head 22, a concave carrier roller 432 located above the pressing bar limiting block 431, and a discharging pipe 434 located right behind the pressing head 22, the pressing bar limiting block 431 is fixed on the pressing head frame 21, the concave carrier roller 432 is mounted on the pressing head frame 21 through a carrier roller shaft 433, the discharging pipe 434 is fixedly connected to the lower portion of the pressing head frame 21, and the lowest edge of the opening of the discharging pipe 434 is higher than the lowest point of the pressing head 22. An arc-shaped groove for the sliding of the pressing strip is formed in the pressing strip limiting block 431. The pressing strip is wound and stored on the storage shaft 41, the leading-out end of the pressing strip passes through the concave carrier roller 432 and the arc-shaped groove of the pressing strip limiting block 431, then enters the discharge pipe 434, and finally extends out of the pipe orifice of the discharge pipe 434, and when the pressing head 22 presses the pressing strip into the clamping groove, automatic discharge of the discharge pipe 434 can be achieved. The length of the pressing strip is released as required during operation, waste is avoided, the guide device can also ensure that the pressing strip can accurately reach a specified position, and the positions of the pressing strip and the clamping groove are corresponding.

The ram 22 in this embodiment also includes a circumferential track 436, with a follower tube 435 slidably disposed on the circumferential track 436. The layering is drawn forth from discharging pipe 434 and is gone into follow-up pipe 435, relies on pressure head 22 to the drive of impressing of layering, and when pressure head 22 turned to the department through draw-in groove on the screen window frame, pressure head 22 continuously acted on the layering and constantly made the layering output, and the layering can turn to and make follow-up pipe 435 slide to suitable position along circumference rail 436, and this kind of setting can realize continuously impressing of layering, more does benefit to the volume production.

As shown in fig. 4 and 5, the batten conveying mechanism in this embodiment further includes a strip blocking device 42, the strip blocking box 421 is fixed on the z-axis module sliding block 162, and the storage shaft 41 is not covered, so that the storage amount of the battens can be observed conveniently. The barrier device 42 comprises a forward non-return pawl 422 and a reverse non-return pawl 427 which are rotatably arranged in a barrier box 421, and a ratchet 423 connected with the storage shaft 41, wherein the forward non-return pawl 422 and the reverse non-return pawl 427 which are symmetrically arranged limit forward rotation and reverse rotation of the ratchet 423 respectively, a spring I428 is connected between the forward non-return pawl 422 and the inner wall of the barrier box 421, a spring II424 is connected between the reverse non-return pawl 427 and the inner wall of the barrier box 421, an eccentric wheel 425 is arranged between the forward non-return pawl 422 and the reverse non-return pawl 427, the eccentric wheel 425 is connected to a knob shaft 426, the knob shaft 426 is arranged on the barrier box 421, a knob is arranged on the knob shaft 426, and the knob is arranged outside the barrier box 421, so that the operation is convenient. By turning the knob shaft 426 with the knob, the eccentric 425 can make high pair contact with either the forward check pawl 422 or the reverse check pawl 427. By turning the knob, the eccentric 425 can be turned, at which point the eccentric 425 can be adjusted to contact the selected forward check pawl 422 or reverse check pawl 427. The forward and reverse control of the ratchet 423 is realized by the eccentric wheel 425 compressing the forward check pawl 422 or the reverse check pawl 427, so that the pressing strip can be stopped in time when the pressing head 22 stops, and excessive or improper leading-out of the pressing strip can be avoided after the pressing head stops.

As shown in fig. 2, the batten conveying mechanism in this embodiment further includes a laser body 437, the laser body 437 is fixed on the batten frame 21, and a laser cutting head 438 is fixed on the laser body 437, and is used for cutting off excess material around the gauze.

As shown in fig. 6 and 7, the device of this embodiment further includes a clamping mechanism for clamping the outer frame of the screen window, the long groove 121 is formed on the top surface of the workbench 12, the clamping mechanism includes a right-angle positioning block 52 and a clamping device 51, the clamping device 51 includes a hemicycle plate 511, an arc-shaped groove 512 is formed on the hemicycle plate 511 by taking the rotation connection point of the long groove 121 and the hemicycle plate 511 as the center of circle, the arc-shaped groove 512 is detachably connected with the long groove 121, one end of the hemicycle plate 511 is connected with a clamping support 513, a wrench 514, the clamping support 513, a connecting plate 515 and a push rod 516 constitute a crank-slider mechanism, wherein the push rod 516 is connected with the clamping support 513 as a sliding pair; the front end of the push rod 516 is connected with a round unfilled corner top plate 517. The long groove 121 is connected with the half-rotating plate 511 through a locking bolt 518, the arc-shaped groove 512 is connected with the long groove 121 through a butterfly bolt 519, and the right-angle positioning block 52 and the clamping device 51 are arranged along the diagonal direction. This embodiment can stabilize the centre gripping to the screen window frame of equidimension not.

The specific use method of the automatic gauze mounting equipment of the embodiment is as follows:

fastening the screen window: the outer frame of the screen window is placed on the workbench 12, one corner of the outer frame of the screen window is clamped on the right-angle positioning block 52, the locking bolt 518 between the semi-rotating plate 511 and the long groove 121 is unscrewed, the whole clamping device 51 is pushed to move to a proper position along the long groove 121 towards the outer frame of the screen window, the butterfly bolt 519 between the arc-shaped groove 512 and the long groove 121 is unscrewed, the position of the semi-rotating plate 511 is rotated and adjusted to enable the circular unfilled corner top plate 517 to be in butt joint with the nearest corner of the outer frame of the screen window, the unfilled corner of the circular unfilled corner top plate 517 is just clamped on the corner of the outer frame of the screen window, at the moment, the centers of three hinges of the wrench 514, the clamping support 513, the connecting plate 515 and the push rod 516 are collinear, the circular unfilled corner top plate 517 is located at the farthest end, and the locking bolt 518 and the butterfly bolt 519 are screwed tightly.

Conveying a gauze: after the screen window outer frame is locked, the recovery motor 38 starts to act to drive the recovery shaft 32 to rotate, the recovery shaft 32 follows up and is provided with a winding and pulling screen, the screen sequentially passes through plain threads below the tensioning roller 35 on the recovery shaft 32 side and plain threads above the conveying roller 33, then passes through plain threads above the warp window outer frame and plain threads below the conveying roller 34 on the screen window shaft 31 side and the tensioning roller 36, and finally the screen window shaft 31 is pulled to rotate. In this process, the tensioning device 37 is simultaneously actuated to ensure that the screen is constantly under tension.

Tensioning the gauze: in the explanation of the tension device 37 on the recovery shaft 32 side, the vertical component of the screen tension is applied to the torsion spring seat 371 through the transfer roller 33 via the roller shaft 331 of the transfer roller 33, the torsion spring seat 371 presses one end of the torsion spring to deform the torsion spring, and the generated elastic deformation force is reacted to the torsion spring seat 371 and finally transferred to the transfer roller 33, so that the screen is always in a tensioned state. The working principle of the tensioning device on the side of the screen shaft 31 can be referred to the tensioning device 37 on the side of the recovery shaft 32.

Returning to an original point: after the gauze is tensioned, a motor driver is controlled, an x-axis stepping motor 131 is started, a connecting shaft 132 is driven to rotate through a coupler, the connecting shaft 132 connects the synchronous wheels of the x-axis main shaft module 13 and the auxiliary linear module 14, a synchronous belt meshed with the synchronous wheels drives the sliding blocks 133 and 141 of the x-axis module to move, and the sliding blocks 133 and 141 drive parts borne by the sliding blocks 133 and 141 to move left and right along the sliding rails of the x-axis module; when the y-axis stepping motor 151 acts, a synchronous wheel of the y-axis module 15 drives a synchronous belt thereof to move, and a y-axis module sliding block 152 drives a part carried by the y-axis module to move back and forth along a sliding rail of the y-axis module 15; the z-axis stepping motor 161 operates, the synchronous pulley of the z-axis module 16 drives the synchronous belt thereof to move, and the z-axis module slider 162 drives the components carried thereby to move up and down along the slide rail of the z-axis module 16. The hold-down device 2 is placed at the working origin by means of movements in three directions.

Layering and conveying: the pressing strip is wound on the storage shaft 41, and the guiding of the pressing strip is realized through the guiding device. The pressing strip passes through the concave carrier roller 432, the pressing strip limiting block 431, the pressing strip discharging pipe 434 and the follow-up pipe 435 to reach the position below the pressure head 22. Rotation of the knob of the bar assembly 42 rotates the knob shaft 426 to compress the eccentric 425 against the forward non-return pawl 422, and the forward non-return pawl 422 disengages from the ratchet 423 to ensure that the ratchet 423 rotates in the forward direction and the reverse non-return pawl 427 slips past the back of the teeth of the ratchet 423. The reverse check pawl 427 is engaged with the ratchet gear 423 by the spring II424, and can prevent the ratchet gear 423 from rotating reversely. When the pressure head 22 acts, the pressing strip is continuously led out from the material storage shaft 41 under the action of the traction force of the pressure head 22, so that the stable conveying of the pressing strip is realized.

Pressing in a pressing strip: the pressing device 2 is carried on the z-axis module 16, the three-axis gantry combination module moves the pressing head 22 to a pre-selection position, the pressing head 22 is aligned to a clamping groove of the outer frame of the screen window, and the pressing head 22 moves downwards to press the pressing strip into the clamping groove. The compression spring 24 is always in a compressed state to ensure that the pressing strip is reliably pressed in. The press head 22 moves along with the module in one direction, and the pressing strip is continuously pressed into the clamping groove. When the pressure head 22 reaches the first inflection point of the screen window outer frame, the pressure head 22 continuously applies pressure to the pressing strip newly led out from the follow-up tube 435, and the pressing strip 22 drives the follow-up tube 435 to slide along the circumferential rail 436 due to the change of the trend of the pressure head 22, so that the output pressing strip is arranged on the advancing side of the pressure head 22, and the pressing strip can be continuously pressed in without being cut off until the pressing strip on the periphery of the screen window outer frame is installed.

Trimming the gauze: after the press strip is installed, the laser cutting head 438 is controlled to act, the laser machine body 437 moves along with the module, the gauze is cut off along the outer edge of the clamping groove of the gauze frame, the motion track of the laser machine body 437 is the reverse direction of the motion track of the pressure head 22, and the pressure head 22 returns to the original working point.

Taking out the screen window: when the clamping device 51 is loosened, the wrench 514 is only required to be rotated, the circular unfilled corner top plate 517 at the front end of the push rod 516 is far away from the corner of the outer frame of the screen window, the screen window is taken down from the workbench 12, and then the next working cycle is carried out. For the outer frame of the screen window with the same specification, because the clamping device 51 is adjusted, when the frame is clamped again, one corner is clamped on the right-angle positioning block 52, the wrench 514 is rotated, and the circular unfilled corner top plate 517 compresses the other corner, so that the quick positioning of the outer frame of the screen window is completed.

Stopping the machine for limiting the strip: after the machine is stopped, the knob shaft 426 is rotated reversely, so that the eccentric wheel 425 presses the reverse check pawl 427, the forward check pawl 422 is meshed with the ratchet of the ratchet 423 again under the action of the spring I428, the ratchet 423 cannot rotate forwards, and the pressing strip is prevented from being led out excessively.

The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art. The present invention is not described in detail, but is known to those skilled in the art.

Claims (9)

1. The utility model provides a gauze automatic installation equipment which characterized in that: the pressing strip pressing device comprises a gantry type three-axis operation platform and a pressing strip pressing device, wherein the gantry type three-axis operation platform comprises a support, a workbench and a three-axis gantry type combined module, and is provided with an absolute coordinate system o-xyz, the workbench is fixed on the support, the three-axis gantry type combined module is installed on the workbench, and the three-axis gantry type combined module comprises an x-axis module, a y-axis module and a z-axis module; the pressing device comprises a pressing head frame which is rotatably connected to a z-axis module sliding block, a pressing head is arranged at the lower part of the pressing head frame, a telescopic rod is hinged between one side of the pressing head frame and the z-axis module, and a compression spring is arranged between an outer rod and the outer end of an inner rod of the telescopic rod; the equipment is still including the layering conveying mechanism who is used for the layering conveying, layering conveying mechanism is including being located the storage axle and the layering guider of pressure head frame top, the storage axle rotates and sets up on the slider of z axle module, guider is including being located the layering stopper of pressure head top, the spill bearing roller that is located the layering stopper top and the discharging pipe that is located the pressure head positive rear, the layering stopper is fixed on the pressure head frame, the spill bearing roller passes through the bearing roller axle and installs on the pressure head frame, and the discharging pipe rigid coupling is in pressure head frame lower part, and the discharging pipe mouth of pipe is along the minimum that is higher than the pressure head most.

2. The automatic screen mounting apparatus according to claim 1, wherein: the X-axis module comprises an X-axis main shaft module and an auxiliary linear module, the X-axis module is fixed on the workbench, two ends of the Y-axis module are respectively arranged on a sliding block of the X-axis main shaft module and a sliding block of the auxiliary linear module, and the Z-axis module is arranged on a sliding block of the Y-axis module; and the movement of each shaft of the three-shaft gantry type combined module is controlled by a corresponding stepping motor and a corresponding motor driver respectively.

3. The automatic screen mounting apparatus according to claim 1, wherein: the equipment is still including the gauze conveying mechanism who is used for transmitting the gauze, gauze conveying mechanism includes gauze axle, retrieves axle and transfer roller, and gauze axle, recovery axle and transfer roller rotate respectively to set up on the support, wherein gauze axle, recovery axle divide to be listed as in the workstation both sides, the transfer roller symmetry sets up between gauze axle and recovery axle, and the one end of retrieving the axle is connected with the output of retrieving the motor, retrieves the motor and installs on the support.

4. The automatic screen mounting apparatus according to claim 3, wherein: and tensioning rollers are respectively arranged between the conveying roller and the gauze shaft and between the conveying roller and the recovery shaft.

5. The automatic screen mounting apparatus according to claim 4, wherein: be equipped with overspeed device tensioner on the transfer roller, overspeed device tensioner is including twisting the spring holder, and the torsional spring holder sets up through twisting the rotation of spring axle on the support, set up roller draw-in groove and round pin axle on the torsional spring holder, roller draw-in groove and round pin axle are located respectively and twist reverse spring axle both sides, and the roller one end of transfer roller is connected in the roller draw-in groove, twists reverse the epaxial cover of spring and establishes torsion spring, torsion spring's one end and the contact of twisting the spring holder, the other end and round pin axle contact.

6. The automatic screen mounting apparatus of claim 1, wherein: an arc-shaped groove for the pressing strip to slide through is formed in the pressing strip limiting block; the pressure head is provided with a circumferential rail, and the circumferential rail is provided with a follow-up pipe in a sliding manner.

7. The automatic screen mounting apparatus according to claim 1, wherein: the layering conveying mechanism still includes the blend stop device, the blend stop device is including rotating two non return pawls that set up in the blend stop box, the ratchet of being connected with the storage hub, and the blend stop box is fixed on the slider of z axle module, the corotation and the reversal of ratchet are restricted respectively to two non return pawls that the symmetry set up, are connected with the spring between two non return pawls and the blend stop box inner wall respectively, set up the eccentric wheel between two non return pawls, the eccentric wheel is connected on the knob axle, the knob axle is installed on the blend stop box, the epaxial knob that sets up of knob, rotate the knob axle, the eccentric wheel can with any high vice contact in the two non return pawls.

8. The automatic screen mounting apparatus according to claim 7, wherein: the pressing strip conveying mechanism further comprises a laser body, the laser body is fixed on the pressing head frame, and a laser cutting head is fixed on the laser body.

9. The automatic screen mounting apparatus according to any one of claims 1 to 8, wherein: the equipment also comprises a clamping mechanism for clamping an outer frame of the screen window, wherein an elongated slot is formed in the table top of the workbench, the clamping mechanism comprises a right-angle positioning block and a clamping device, the clamping device comprises a semi-rotating plate, an arc-shaped slot is formed in the semi-rotating plate by taking the rotating connection point of the elongated slot and the semi-rotating plate as the circle center, the arc-shaped slot is detachably connected with the elongated slot, one end of the semi-rotating plate is connected with a clamping support, a spanner, the clamping support, a connecting plate and a push rod form a crank slider mechanism, and the push rod is connected with the clamping support through a sliding pair; the front end of the push rod is connected with a round unfilled corner top plate.

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