CN111688168A - Lower die device of mirror frame bending forming machine - Google Patents

Abstract

The invention discloses: the utility model provides a picture frame bending forming machine lower mould device, its technical scheme main points are: a lower die device of a mirror frame bending forming machine comprises a bottom plate arranged on the mirror frame bending forming machine, a conveying mechanism arranged on the bottom plate and used for conveying a mirror frame, and a lower die mechanism used for mounting and fixing the conveyed mirror frame; the lower die mechanism comprises a lower die base which is rotatably connected to the bottom plate, a lower module which is arranged on the lower die base and is used for the picture frame device, a rotating component which is used for driving the lower die base to rotate, a clamping and fixing component which is used for clamping and fixing the picture frame, and an installation and adjustment component which is used for installing and adjusting the relative angle of the two lower die blocks; the lower die holder is arranged horizontally in the rotating axial direction. The automatic bending and forming device can automatically mount the heated mirror frame to the lower module, realize accurate positioning of the mounting position of the mirror frame, improve the bending and forming efficiency of the mirror frame and realize automatic bending and forming of the mirror frame.

Description

Lower die device of mirror frame bending forming machine

Technical Field

The invention relates to the field of mirror frame processing, in particular to a lower die device of a mirror frame bending forming machine.

Background

The existing eyes mainly comprise a spectacle frame, spectacle legs and lenses; the frame generally includes two lens frames, a bridge disposed between the two lens frames, and a frame bridge connecting the two lens frames.

After the frame is injection molded, the frame is generally flat or has a certain curvature. In order to make the spectacle frame adapt to the contour of the human face, the spectacle frame needs to be adjusted by bending and forming, so that the spectacle frame adapts to the contour of the human face after the spectacle frame beam is bent for a certain angle, and two lens frames are ensured to be adapted to the eyes of the human body.

The existing bending forming of the mirror frame is generally carried out by preheating the mirror frame and then placing the mirror frame into a mould for secondary forming, but no corresponding forming equipment for bending forming of the mirror frame exists at the present stage.

Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.

Disclosure of Invention

The invention aims to provide a lower die device of a picture frame bending forming machine, which can automatically mount a heated picture frame to a lower die block, realize accurate positioning of the mounting position of the picture frame, improve the bending forming efficiency of the picture frame and realize automatic bending forming of the picture frame.

The technical purpose of the invention is realized by the following technical scheme: a lower die device of a mirror frame bending forming machine comprises a bottom plate arranged on the mirror frame bending forming machine, a conveying mechanism arranged on the bottom plate and used for conveying a mirror frame, and a lower die mechanism used for mounting and fixing the conveyed mirror frame; the lower die mechanism comprises a lower die base which is rotatably connected to the bottom plate, a lower module which is arranged on the lower die base and is used for the picture frame device, a rotating component which is used for driving the lower die base to rotate, a clamping and fixing component which is used for clamping and fixing the picture frame, and an installation and adjustment component which is used for installing and adjusting the relative angle of the two lower die blocks; the lower die holder is arranged horizontally in the rotating axial direction.

The invention is further provided with: the conveying mechanism comprises a receiving base arranged on the bottom plate, a sliding component arranged on the base and sliding towards the direction of the lower die holder, a material receiving fork arranged on the sliding component and abutted to the lower end face of the picture frame, a material receiving frame arranged on the sliding component and used for abutting the side wall of the picture frame, which is far away from one side of the lower die holder, and a positioning component arranged on the bottom plate and used for positioning the picture frame; the sliding assembly comprises a first receiving sliding block which horizontally slides relative to the receiving base, a first sliding cylinder which is used for driving the first receiving sliding block to slide towards the direction of the lower die holder, a second receiving sliding block which horizontally slides relative to the first receiving sliding block, a third receiving sliding block which horizontally slides relative to the second receiving sliding block, a second sliding cylinder which is used for driving the second receiving sliding block to slide, and a third sliding cylinder which is used for driving the third receiving sliding block to slide, wherein the sliding directions of the second receiving sliding block and the third receiving sliding block are consistent with the sliding direction of the first receiving sliding block, the material receiving fork is fixedly connected to the third receiving sliding block, the material receiving frame is hinged to the second receiving sliding block, a rotary torsion spring is arranged at the hinged end of the material receiving frame and the second receiving sliding block, and the material receiving frame is obliquely arranged from bottom to top in a direction deviating from the lower die holder, the first receiving sliding block is provided with a connecting rod which is abutted to the material receiving frame, the second receiving sliding block slides towards the lower die base relative to the first receiving sliding block, and the material receiving frame rotates towards the direction of the lower die base by taking the end part of the connecting rod as a fulcrum.

The invention is further provided with: the positioning assembly comprises a bidirectional cylinder fixedly connected to the bottom plate, two positioning blocks symmetrically arranged at the output ends of the corresponding bidirectional cylinders, and positioning plates arranged on the positioning blocks in an L shape, the two positioning plates are oppositely arranged, and the mirror frame is positioned between the two positioning plates; the locating plate be horizontal sliding connection in the locating piece, just locating plate sliding direction is on a parallel with first receipt slider sliding direction, just all be provided with between locating plate and the locating piece and stir the reset torsion spring that the locating plate resets.

The invention is further provided with: the rotating part comprises a rotating shaft arranged on the side wall of the lower die holder, a rotating cylinder arranged on the bottom plate and driving the rotating shaft, a gear arranged on the rotating shaft, a rack which is connected to the bottom plate in a sliding manner and meshed with the gear, and a driving cylinder arranged on the bottom plate and driving the rack to slide.

The invention is further provided with: the fixed assembly is arranged between the bottom plate and the lower die holder and used for avoiding the lower die holder from overturning after being pressed, and comprises a fixed lug, a fixed connecting rod, a fixed bulge and a fixed cylinder, wherein the fixed lug is arranged on the lower die holder and protrudes out of the side wall of the lower die holder, one end of the fixed connecting rod is rotatably connected with the bottom plate, the fixed bulge is arranged on the fixed connecting rod and can be abutted to the upper end face of the fixed lug, and the fixed cylinder is arranged on the bottom plate and drives the fixed connecting rod to rotate towards.

The invention is further provided with: the bottom plate is provided with a support which is rotatably connected with one end, far away from the rotating shaft, of the lower die holder, the side wall of the support is provided with an L-shaped control block for controlling the rotating angle of the lower die holder, the upper surface of the lower die holder can be abutted to the lower surface of the L-shaped control block, the lower die holder can be abutted to the upper surface of the L-shaped control block after being turned for 180 degrees, and the lower die holder is provided with two hydraulic buffers which can be abutted to the upper surface and the lower surface of the L-shaped control block.

The invention is further provided with: the centre gripping fixed part including set up in the die holder just is vertical ascending centre gripping cylinder, set up in the centre gripping connecting block of centre gripping cylinder output shaft, set up in the centre gripping connecting block just is the centre gripping shell fragment of V-arrangement, two the control groove that supplies the centre gripping shell fragment is worn to establish is seted up to the lateral wall that the lower module is in opposite directions, two butt in the centre gripping arch of lens frame inner wall respectively of centre gripping shell fragment fixedly connected with.

The invention is further provided with: the mounting and adjusting component comprises a main support arranged on the upper end surface of the lower die base, two branch supports respectively arranged on two sides of the main support, a mounting component arranged between the lower die base and the branch supports and used for driving the branch supports to move and then fixing the lower die block, and an angle adjusting component arranged between the lower die base and the main support and used for adjusting the bending angles of the two lower die blocks.

The invention is further provided with: the angle adjusting assembly comprises an adjusting column which is arranged on the lower die base in a penetrating mode and is provided with a penetrating hole through which the adjusting column penetrates, and a locking bolt which is in threaded connection with the lower die base and can penetrate into the penetrating hole, and the main support is connected with the adjusting column and moves along with the adjusting column in a synchronous mode.

The invention is further provided with: the bottom plate can slide for picture frame bending forming machine level, the rotation axle center groove that is the U-shaped is seted up to bottom plate one end corner position, the bottom plate is provided with and is used for restricting the bottom plate and rotate the restriction cylinder that slides for picture frame bending forming machine, restriction cylinder output shaft is vertical setting downwards and can outstanding terminal surface under the bottom plate.

In conclusion, the invention has the following beneficial effects:

the heated mirror frame falls down and abuts against the material receiving forks, and after the mirror frame falls into a space surrounded by the positioning plates, the material receiving frame and the material receiving forks, the two positioning plates are driven to move oppositely through the bidirectional air cylinder, so that the center of the mirror frame is positioned, and the mirror frame is ensured to be consistent with the positions of the corresponding lower modules; then, a first receiving sliding block, a second receiving sliding block and a third receiving sliding block are driven by a first sliding cylinder to synchronously move towards the direction of a lower die holder, so that a picture frame is close to the position of the lower die block, at the moment, the lower die holder rotates by 90 degrees and enables the lower die block to face a material receiving frame, then the second receiving sliding block and the third receiving sliding block are driven by a second sliding cylinder to continuously move towards the direction of the lower die holder, and the material receiving frame turns towards the direction of the lower die block and achieves the purpose of mounting the picture frame on the lower die block; the clamping connecting block and the clamping elastic sheet are driven by the clamping cylinder to move towards the direction of the lower die holder, and the clamping elastic sheet drives the clamping protrusions to be clamped into the lens grooves to clamp and fix the lens frame; then through driving actuating cylinder drive die holder reversal 90 make die holder and lower module state up, extrude the bending to the picture frame through last mould and lower die mechanism compound die, make picture frame bending shape certain angle, later through revolving cylinder drive die holder rotate 180, the picture frame after the lower module drops when down with the shaping.

When the automatic material receiving device works, the picture frame falls down and abuts against the material receiving forks, the relative position of the picture frame is limited by the material receiving rack and the positioning component, then the first sliding cylinder drives the first receiving slide block, the second receiving slide block and the third receiving slide block to synchronously move towards the direction of the lower die holder so that the picture frame is close to the position of the lower die holder, then the second sliding cylinder drives the second receiving slide block and the third receiving slide block to continuously move towards the direction of the lower die holder, the second receiving slide block drives the material receiving rack to operate and enables the picture frame to be tightly abutted against the lower die holder so as to achieve the effect of placing the picture frame on the lower die holder, after the steps are completed, the first sliding cylinder and the second sliding cylinder reset, the third sliding cylinder drives the third receiving slide block to move relative to the direction of the second receiving slide block, so that the material receiving forks are separated from the material receiving rack, namely, the lower end, the frame can not be received by the conveying mechanism, when the frame is bent and formed through the lower die mechanism, the frame is reset through the third sliding air cylinder, the material receiving fork is enabled to protrude out of the material receiving rack towards one end of the lower die seat, the lower end face of the frame can abut against the material receiving fork, the normal receiving frame is achieved, the material receiving fork is controlled by the third sliding air cylinder to slide, the frame is prevented from receiving a plurality of frames at one time, and the conveying mechanism is enabled to convey only one frame to the lower die block at one time.

After moving towards the lower die holder direction through first cylinder drive picture frame that slides, the picture frame is close to in lower module, and after moving towards the lower die holder through second cylinder drive second receipt slider that slides, the second is received the slider and is driven and connect the material frame to move towards the lower die holder, makes to connect the work or material rest to use its butt end with the connecting rod as the fulcrum and overturn towards the lower die holder direction, reaches picture frame device in lower module position, therefore realizes putting picture frame automation, high efficiency, accurate in lower module.

After the mirror frame falls into a space surrounded by the positioning plates, the material receiving frame and the material receiving forks, the two positioning plates are driven to move in opposite directions through the bidirectional air cylinder, so that the center of the mirror frame is positioned, the position of the mirror frame is ensured to be consistent with that of the corresponding lower module, then when the mirror frame is pushed into the lower module by the material receiving frame, the mirror frame stirs the positioning plates to move for a certain distance towards the direction of the lower die base, and the positioning plates are arranged in the lower module after the mirror frame is separated from the positioning plates due to elastic deformation of the positioning plates, and are; slide for the locating piece through the locating plate and play the cushioning effect, avoid locating plate and picture frame rigidity collision, have elasticity through the locating plate simultaneously and be convenient for the picture frame break away from the locating plate.

When the locating piece slided, spacing post was for spacing slot hole to through spacing slot hole restriction spacing slider length of sliding, realize controlling two locating pieces telescopic distance that slide, and conveniently adjust spacing post relative position through spacing bolt and spacing slider threaded connection, play convenient regulation effect.

The lower die holder can be effectively positioned by an angle of 180 degrees through the L-shaped control block, the lower die holder is ensured to be in a vertical upward state or a downward state, and the hydraulic buffer has the functions of buffering and noise reduction.

When installing module down, the pulling feeder pillar makes the feeder pillar deviate from the main support direction and remove to the module is placed between feeder pillar and main support under the convenience, and makes the round pin axle of module down block go into corresponding main draw-in groove and divide the draw-in groove respectively, later through the removal of spring reset drive feeder pillar orientation main support direction, ensures that the round pin axle card goes into corresponding main draw-in groove and divide the draw-in groove in, reaches module under the fixed, realizes module under quick convenient installation.

During the use, through unscrewing the locking bolt, the regulation post is for the flexible position of wearing to establish the hole, realizes the regulation of main support for the die holder height promptly to outstanding position determination regulation seat in the position of die holder through the scale, then screws up the locking bolt, reach and adjust two lower module relative turned angle.

When using, earlier with picture frame device in two module down, centre gripping shell fragment V-arrangement both ends wear to locate respectively in corresponding lens frame this moment, then remove towards the die holder direction through centre gripping cylinder drive centre gripping connecting block and centre gripping shell fragment, the V-arrangement lateral wall of centre gripping shell fragment is contradicted behind the control tank bottom surface, two V-arrangement lateral walls of centre gripping shell fragment are drawn close each other, reach the protruding phase shift of centre gripping and butt lens frame inner wall, reach the effect of the fixed picture frame of centre gripping, and the protruding card of accessible centre gripping can further ensure to fix the picture frame into the lens groove.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a first schematic structural view of a conveying mechanism according to the present invention;

FIG. 3 is a second schematic structural view of the conveying mechanism of the present invention;

FIG. 4 is a third schematic structural view of the conveying mechanism of the present invention;

FIG. 5 is an exploded view of the delivery mechanism of the present invention;

FIG. 6 is a cross-sectional view of the positioning assembly of the present invention;

FIG. 7 is a first cross-sectional view of the lower die mechanism of the present invention;

FIG. 8 is a second sectional view of the lower die mechanism of the present invention;

FIG. 9 is an exploded view of the lower die mechanism of the present invention;

FIG. 10 is an exploded view of the lower die mechanism of the present invention;

FIG. 11 is a third schematic exploded view of the lower die mechanism of the present invention;

fig. 12 is a sectional view of the frame holding fixture of the present invention;

fig. 13 is a schematic view of the frame structure.

The corresponding part names indicated by the numbers in the figures: 1. a base plate; 2. a lower die holder; 3. a lower module; 401. a receiving base; 402. a material receiving fork; 403. a material receiving frame; 404. a buffering elastic sheet; 411. a first receiving slider; 412. a first slipping cylinder; 413. a second receiving slider; 414. a third receiving slider; 415. a second slipping cylinder; 416. a third slipping cylinder; 421. rotating the torsion spring; 422. a connecting rod; 431. a bidirectional cylinder; 432. positioning blocks; 433. positioning a plate; 434. a return torsion spring; 435. an elastic deformation groove; 441. limiting long holes; 442. a limiting seat; 443. a limiting slide block; 444. a limiting column; 445. a limit bolt; 446. a base plate; 501. a rotating shaft; 502. a rotating cylinder; 503. a gear; 504. a rack; 505. a driving cylinder; 511. a support; 512. an L-shaped control block; 513. a hydraulic buffer; 521. fixing the bump; 522. fixing the connecting rod; 523. a fixed protrusion; 524. fixing the air cylinder; 601. a main support; 602. a branch frame; 611. a pin shaft; 612. a card distributing slot; 613. a main card slot; 614. a spring; 615. positioning pins; 621. an adjustment column; 622. perforating holes; 623. a locking bolt; 624. a graduated scale; 631. a pre-adjusting seat; 632. a pre-adjustment block; 633. a lifting column; 701. a clamping cylinder; 702. clamping a connecting block; 703. clamping the elastic sheet; 704. a control slot; 705. a clamping protrusion; 706. forming a mould; 711. placing a positioning plate; 712. an adjusting block; 801. a rotating axis groove; 802. the cylinder is restricted.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further described with reference to the figures and the specific embodiments.

As shown in fig. 1, the lower die device for a frame bending machine according to the present invention includes a base plate 1 attached to the frame bending machine, a conveying mechanism provided on the base plate 1 and used for conveying a frame, and a lower die mechanism for attaching and fixing the frame to be conveyed. The lower die mechanism comprises a lower die base 2 rotatably connected to the bottom plate 1, a lower die block 3 arranged on the lower die base 2 and used for the picture frame device, a rotating component used for driving the lower die base 2 to rotate, a clamping and fixing component used for clamping and fixing the picture frame, and an installation and adjustment component used for installing and adjusting the relative angle of the two lower die blocks 3.

Wherein conveying mechanism includes fixed connection in bottom plate 1's receiving base 401, set up in the base and towards the subassembly that slides of 2 directions of die holder, install in the subassembly that slides and butt in the picture frame receive the material fork 402 of terminal surface under the picture frame, install in the subassembly that slides and supply the picture frame to deviate from work or material rest 403 that the lateral wall butt in one side of die holder 2, set up in bottom plate 1 and to the locating component of picture frame location. The sliding assembly comprises a first receiving slide block 411 horizontally sliding relative to the receiving base 401, a first sliding cylinder 412 for driving the first receiving slide block 411 to slide towards the lower die holder 2, a second receiving slide block 413 horizontally sliding relative to the first receiving slide block 411, a third receiving slide block 414 horizontally sliding relative to the second receiving slide block 413, a second sliding cylinder 415 for driving the second receiving slide block 413 to slide, and a third sliding cylinder 416 for driving the third receiving slide block 414 to slide; in this embodiment, the second receiving block 413 is slidably connected to the receiving base 401, the first receiving block 411 is slidably connected to the upper surface of the second receiving block 413, the third receiving block 414 is slidably connected to the upper surface of the second receiving block 413, sliding rails are disposed among the first receiving block 411, the second receiving block 413, and the third receiving block 414, the first sliding cylinder 412 is fixed to the receiving base 401 and the output shaft is fixed to the first receiving block 411, the second sliding cylinder 415 is fixed to the first receiving block and the output shaft is fixed to the second receiving block 413, the third sliding cylinder 416 is fixed to the third receiving block and the output shaft is fixed to the second receiving block, and the sliding directions of the second receiving block 413 and the third receiving block 414 are the same as the sliding direction of the first receiving block 411. The receiving fork 402 is fixedly connected to the third receiving slider 414, the receiving fork 402 can protrude from the side wall of the receiving rack 403 facing the lower die base 2, and the receiving rack 403 is installed on the second receiving slider 413. And the material receiving frame 403 is provided with a buffering elastic sheet 404 which prevents the frame from being excessively extruded, and the material receiving frame 403 has elastic deformation capability, so that the frame can be prevented from being extruded and deformed.

During operation, the mirror frame falls down and abuts against the material receiving fork 402, the relative position of the mirror frame is limited by the material receiving frame 403 and the positioning component, then the first sliding cylinder 412 drives the first receiving slide block 411, the second receiving slide block 413 and the third receiving slide block 414 to synchronously move towards the lower die holder 2, so that the mirror frame approaches to the position of the lower die block 3, then the second sliding cylinder 415 drives the second receiving slide block 413 and the third receiving slide block 414 to continuously move towards the lower die holder 2, the second receiving slide block 413 drives the material receiving frame 403 to operate and enables the mirror frame to abut against the lower die block 3, so that the mirror frame is placed on the lower die block 3, after the steps are completed, the first sliding cylinder 412 and the second sliding cylinder 415 reset, the third sliding cylinder 416 drives the third receiving slide block 414 to move relative to the second receiving slide block 413 and away from the lower die holder 2, so that the material receiving fork 402 is separated from the material receiving frame 403, that is, when the frame falls down, the lower end face of the frame is not in contact with the receiving fork 402, so that the frame cannot be received by the conveying mechanism, when the lower die mechanism completes the bending forming of the frame, the third sliding cylinder 416 resets to enable the receiving fork 402 to protrude out of the receiving frame 403 towards one end of the lower die base 2, the lower end face of the frame can abut against the receiving fork 402, the normal receiving of the frame is realized, the third sliding cylinder 416 controls the receiving fork 402 to slide to avoid receiving a plurality of frames at one time, and the conveying mechanism is ensured to only convey one frame to the lower die block 3 at one time.

In this embodiment, the material receiving frame 403 is hinged to a side wall of the second receiving slider 413 facing the lower die holder 2, a rotary torsion spring 421 is installed at a hinged end of the material receiving frame 403 and the second receiving slider 413, the material receiving frame 403 is inclined from the lower die holder 2 from bottom to top, the first receiving slider 411 is provided with a connecting rod 422 abutted to the material receiving frame 403, the connecting rod 422 and the abutting end of the material receiving frame 403 are located below the rotary torsion spring 421, that is, after the second receiving slider 413 slides towards the lower die holder 2 relative to the first receiving slider 411, the material receiving frame 403 rotates towards the lower die holder 2 by taking the end of the connecting rod 422 as a fulcrum. After moving towards lower die holder 2 direction through first cylinder 412 that slides drive picture frame, the picture frame is close to in lower module 3, after moving towards lower die holder 2 through second cylinder 415 drive second receipt slider 413 that slides, second receipt slider 413 drives connects work or material rest 403 to move towards lower die holder 2, make connect work or material rest 403 to use its butt end with connecting rod 422 to overturn towards lower die holder 2 direction as the fulcrum, reach picture frame device in module 3 position down, therefore realize putting picture frame automatic, high-efficient, accurate in module 3 down.

In order to ensure that the first receiving slider 411 drives the second receiving slider 413 to move towards the lower die holder 2 synchronously, one end of the first receiving slider 411 facing the lower die holder 2 abuts against the second receiving slider 413, so as to drive the second receiving slider 413 to move towards the lower die holder 2 synchronously.

The positioning component of the conveying mechanism comprises a bidirectional cylinder 431 (which is a bidirectional rodless cylinder and is a prior art) fixedly connected to the bottom plate 1, two positioning blocks 432 symmetrically arranged at the output end of the corresponding bidirectional cylinder 431, and positioning plates 433 arranged at the positioning blocks 432 and in an L shape, wherein the two positioning plates 433 are oppositely arranged, and the mirror frame is positioned between the two positioning plates 433. After the picture frame falls down, terminal surface butt in receiving fork 402 under the picture frame, the picture frame deviates from one side surface butt in receiving work or material rest 403 of die holder 2 to but two locating plates 433 butt respectively surround the picture frame all around in the picture frame towards the surface and the picture frame both sides lateral wall of die holder 2. And in this application, locating plate 433 is horizontal sliding connection in locating piece 432, and the direction of sliding of locating plate 433 is on a parallel with the direction of sliding of first receiving slider 411, is provided with the slide rail structure between locating plate 433 and locating piece 432, all is provided with the reset torsion spring 434 that stirs locating plate 433 and reset between locating plate 433 and locating piece 432. The positioning plate 433 is provided with a plurality of elastic deformation grooves 435, and the positioning plate 433 has elastic deformation and facilitates the lens frame to be separated from the positioning plate 433. During operation, after the mirror frame falls into a space surrounded by the positioning plates 433, the material receiving frames 403 and the material receiving forks 402, the two positioning plates 433 are driven by the bidirectional air cylinder 431 to move oppositely, so that the center of the mirror frame is positioned, the position of the mirror frame is ensured to be consistent with that of the corresponding lower module 3, then when the mirror frame is pushed into the lower module 3 by the material receiving frame 403, the mirror frame pulls the positioning plates 433 to move for a certain distance towards the direction of the lower die base 2, and the mirror frame is separated from the positioning plates 433 and then is arranged in the lower module 3 due to elastic deformation of the positioning plates 433, and the positioning plates 433 are pulled to reset; slide for locating piece 432 through locating plate 433 and play the cushioning effect, avoid locating plate 433 and picture frame rigidity collision, have elasticity through locating plate 433 simultaneously and be convenient for the picture frame break away from locating plate 433.

For the convenience to the restriction of the distance that slides of locating plate 433, be provided with the spacing subassembly of restriction locating piece 432 sliding position between bottom plate 1 and the locating piece 432, spacing subassembly is including offering the spacing slot hole 441 of locating piece 432 up end, be fixed in the spacing seat 442 of bottom plate 1, along locating piece 432 sliding direction sliding connection in the spacing slider 443 of spacing seat 442, install in spacing slider 443 up end and wear to locate the spacing post 444 of spacing slot hole 441, connect in spacing seat 442 and restrict the spacing bolt 445 that spacing slider 443 slided. The length direction of the limiting long hole 441 is arranged along the sliding direction of the positioning block 432, one end of the limiting seat 442 departing from the central positions of the two positioning blocks 432 is provided with a base plate 446, a limiting bolt 445 is arranged on the base plate 446, the length direction of the limiting bolt 445 is parallel to the sliding direction of the limiting block, and the limiting bolt 445 penetrates through the base plate 446 and is in threaded connection with the end part of the limiting sliding block 443. When the locating block 432 slides, the limiting column 444 is relative to the limiting long hole 441, the sliding length of the limiting sliding block 443 is limited through the limiting long hole 441, the sliding telescopic distance of the two locating blocks 432 is controlled, the limiting column 444 is conveniently adjusted in relative position through the limiting bolt 445 and the limiting sliding block 443 in threaded connection, and the adjusting function is achieved conveniently.

The rotating parts of the lower die mechanism comprise a rotating shaft 501 mounted on the side wall of the lower die holder 2, a rotating cylinder 502 fixed on the bottom plate 1 and driving the rotating shaft 501, a gear 503 fixed on the rotating shaft 501, a rack 504 slidably connected to the bottom plate 1 and meshed with the gear 503, and a driving cylinder 505 fixed on the bottom plate 1 and driving the rack 504 to slide. In the present embodiment, the driving cylinder 505 drives the rotating shaft 501 to rotate by 90 °, and the rotating cylinder 502 drives the rotating shaft 501 to rotate by 180 °. Even during the time of using, drive rack 504 through driving actuating cylinder 505 and remove to drive pivot 501 rotation through rack 504 that is gear 503, realize that lower bolster 2 rotates 90 towards conveying mechanism, make things convenient for conveying mechanism to put picture frame conveyor on module 3 down, after accomplishing the mirror frame bending, drive lower bolster 2 through revolving cylinder 502 and rotate 180 degrees, make lower bolster 2 and lower module 3 down state, the picture frame of being convenient for drops, realizes the automatic discharge function.

The bottom plate 1 is fixedly provided with a support 511 which is rotationally connected with the lower die holder 2, the support 511 and the rotating shaft 501 are respectively arranged at two sides of the lower die holder 2, the side wall of the support 511 is fixedly provided with an L-shaped control block 512 for controlling the rotation angle of the lower die holder 2, the upper surface of the lower die holder 2 can be abutted against the lower surface of the L-shaped control block 512, the lower die holder 2 can be abutted against the upper surface of the L-shaped control block 512 after the lower die holder 2 is turned over for 180 degrees, and the lower die holder 2 is provided with two hydraulic buffers 513 which can be abutted against the upper. The L-shaped control block 512 can effectively position the lower die holder 2 to rotate by an angle of 180 degrees, ensure that the lower die holder 2 is in a vertically upward state or a vertically downward state, and play a role in buffering and reducing noise through the hydraulic buffer 513. The fixing component is arranged between the bottom plate 1 and the lower die holder 2 and used for avoiding the lower die holder 2 from overturning after being pressed, the fixing component comprises a fixing lug 521 arranged on the lower die holder 2 and protruding out of the side wall of the lower die holder 2, a fixing connecting rod 522 with one end rotatably connected to the bottom plate 1, a fixing bulge 523 arranged on the fixing connecting rod 522 and capable of being abutted to the upper end face of the fixing lug 521, a fixing cylinder 524 arranged on the bottom plate 1 and driving the fixing connecting rod 522 to rotate towards the direction of the lower die holder 2, and the fixing lug 521 protrudes out of the side wall of the lower die holder 2. Because when carrying out the extrusion to the mirror frame, lower die holder 2 atress is uneven, when leading to the extrusion easily, lower die holder 2 deflects, in this embodiment, lower die holder 2 can only deflect towards the conveying mechanism direction, so through the deflection of fixed subassembly restriction lower die holder 2 towards the conveying mechanism direction, after driving fixed connecting rod 522 through fixed cylinder 524 and rotating certain angle, fixed protruding 523 butt in fixed lug 521 up end to restriction lower die holder 2 deflects towards the conveying mechanism direction.

The installation and adjustment component of the lower die mechanism comprises a main support 601 installed on the upper end surface of the lower die base 2, two branch supports 602 respectively arranged on two sides of the main support 601, and an angle adjustment component arranged between the lower die base 2 and the main support 601 and used for adjusting the bending angles of the two lower die blocks 3.

Each lower module 3 is provided with four horizontally arranged pin shafts 611, the four pin shafts 611 are symmetrical in pairs, the axes of the pin shafts 611 are perpendicular to the axial direction of the lower die holder 2, the four pin shafts 611 are respectively clamped in the corresponding main bracket 601 and the corresponding sub-bracket 602, the sub-bracket 602 is provided with two sub-clamping grooves 612 into which the corresponding pin shafts 611 are clamped, the side wall of the main bracket 601 facing the two sub-brackets 602 is provided with two main clamping grooves 613 aligned with the sub-clamping grooves 612, the sub-clamping grooves 612 and the main clamping grooves 613 are both U-shaped, and the sub-clamping grooves 612 and the corresponding main clamping grooves 613 are oppositely arranged. In this embodiment, the sub-frame 602 is slidably connected to the lower die base 2 toward the main frame 601, and the lower die base 2 is installed with two springs 614 for respectively pushing the corresponding sub-frame 602 to move toward the main frame 601.

When the lower module 3 is installed, the branch frame 602 is pulled and the branch frame 602 moves away from the main support 601, so that the lower module 3 is conveniently placed between the branch frame 602 and the main support 601, the pin shaft 611 of the lower module 3 is respectively clamped into the corresponding main clamping groove 613 and the corresponding sub-clamping groove 612, the branch frame 602 is reset and driven to move towards the main support 601 through the spring 614, the pin shaft 611 is ensured to be clamped into the corresponding main clamping groove 613 and the corresponding sub-clamping groove 612, the lower module 3 is fixed, and the lower module 3 is quickly and conveniently installed.

A positioning pin 615 for limiting and positioning the sliding position of the corresponding branch 602 is further installed on the lower die holder 2, and the positioning pin 615 can abut against the sidewall of the branch 602 facing the main support 601. The position where the sub-frame 602 slides toward the main frame 601 can be positioned by the positioning pin 615, and after the sub-frame 602 abuts on the positioning pin 615 after the lower module 3 is detached, the position of the sub-frame 602 can be defined.

The angle adjusting assembly includes that wear to locate lower die holder 2 and slidable connection in the regulation post 621 of lower die holder 2, set up in lower die holder 2 and supply the regulation post 621 to wear to establish hole 622, threaded connection in lower die holder 2 and can penetrate to the locking bolt 623 of wearing to establish hole 622, main support 601 joint is in adjusting post 621 and follows regulation post 621 synchronous motion. And a scale 624 is provided on the sidewall of the adjusting cylinder 621. During the use, through unscrewing locking bolt 623, adjust the flexible position of regulation post 621 for wearing to establish hole 622, realize the regulation of main support 601 for the height of lower die holder 2 promptly to outstanding position determination regulation seat in the position of lower die holder 2 through scale 624, then screw up locking bolt 623, reach and adjust two lower module 3 relative turned angle.

Due to assembly errors during assembly, a pre-adjustment assembly for adjusting the position of the center line of the positioning frame is provided to the main bracket 601. The pre-adjusting assembly comprises a pre-adjusting seat 631 mounted on the main bracket 601, and a pre-adjusting block 632 slidably connected to the pre-adjusting seat 631 and capable of abutting against and positioning the center of the mirror frame, wherein the pre-adjusting block 632 is located at a center line position between the two lower modules 3, and a sliding direction of the pre-adjusting block 632 is along a center line direction between the two lower modules 3. For making things convenient for dismouting pre-adjustment seat 631 and pre-adjustment piece 632, lift post 633 is installed to main support 601, pre-adjustment seat 631 is in lift post 633 along vertical direction sliding connection, and pre-adjustment seat 631 can upwards break away from lift post 633 after sliding, pre-adjustment piece 632 can be followed two central line direction cunnings from pre-adjustment seat 631 between the module 3 down, pre-adjustment piece 632 can butt in two nose girder framves of picture frame after towards picture frame direction cunnings, and reach location picture frame central point through pre-adjustment piece 632, and then confirm and adjust down module 3 position, effectively improve the equipment precision, and can conveniently dismantle pre-adjustment piece 632 and pre-adjustment seat 631, the operation of being convenient for.

The frame clamping fixing part of the lower die mechanism comprises a clamping cylinder 701 which is arranged on the lower die base 2 and vertically upwards, a clamping connecting block 702 which is arranged on an output shaft of the clamping cylinder 701, and a clamping elastic sheet 703 which is arranged on the clamping connecting block 702 and is V-shaped, wherein control grooves 704 for the clamping elastic sheet 703 to penetrate are formed in opposite side walls of the two lower modules 3, and the clamping elastic sheet 703 is fixedly connected with two clamping protrusions 705 which are respectively abutted to the inner wall of the lens frame. In this embodiment, the clamping cylinder 701 is fixedly installed in the adjusting column 621 and vertically and upwardly disposed, the clamping connection block 702 can move up and down relative to the lower die holder 2 and can abut against the upper surface of the main support 601, and the clamping elastic sheet 703 has elasticity. The inner wall of the lens frame is generally formed with a lens groove for clamping and fixing the lens, and in this embodiment, the clamping protrusion 705 corresponds to and can be clamped into the lens groove in the lens frame. When the lens frame fixing device is used, the lens frame is firstly arranged on the two lower modules 3, the V-shaped two ends of the clamping elastic sheet 703 are respectively penetrated and arranged in the corresponding lens frames at the moment, then the clamping air cylinder 701 drives the clamping connecting block 702 and the clamping elastic sheet 703 to move towards the direction of the lower die holder 2, the V-shaped side wall of the clamping elastic sheet 703 is abutted behind the bottom surface of the control groove 704, the two V-shaped side walls of the clamping elastic sheet 703 are mutually closed, the clamping protrusions 705 are oppositely moved and abutted against the inner wall of the lens frames, the effect of clamping the fixed lens frame is achieved, and the lens frame can be further ensured to be fixed by clamping the clamping protrusions 705.

A forming die 706 for abutting the frame bridge is fixed to the holding connection block 702, that is, the frame bridge abuts against the forming die 706 and bends and fits the frame bridge to the surface of the forming die 706, thereby realizing the bending and forming of the frame.

The clamping connecting block 702 is provided with a positioning plate 711 for abutting against the lower surface of the mirror frame, the positioning plate 711 and the clamping elastic piece 703 are positioned on the same vertical plane, the positioning plate 711 is positioned in the V-shaped inner cavity of the clamping elastic piece 703, and rubber sleeves (not marked in the drawing) abutting against the lower surface of the mirror frame are arranged at the two ends of the positioning plate 711 in a penetrating manner. For conveniently adjusting the height of placing the positioning plate 711, ensure the butt in the picture frame lower surface, place the lower terminal surface integrated into one piece of positioning plate 711 and be equipped with the regulating block 712 that wears to locate centre gripping connecting block 702, regulating block 712 wears to locate centre gripping connecting block 702 from top to bottom, but centre gripping connecting block 702 lateral wall threaded connection has the adjusting bolt (not mark in the figure) of butt in centre gripping connecting block 702, and adjusting bolt butt and restriction regulating block 712 reciprocate. Through the regulation piece 712 lift, adjusting bolt butt and fixed regulation piece 712 is for centre gripping connecting block 702 position, adjusts and fixes regulation piece 712 position, ensures to place locating plate 711 and picture frame lower surface contact, ensures simultaneously through placing locating plate 711 that the picture frame can level and smooth the placing.

The bending and forming process of the picture frame through the lower die device comprises the following steps: the heated mirror frame falls down and abuts against the material receiving fork 402, and after the mirror frame falls to a space surrounded by the positioning plates 433, the material receiving frame 403 and the material receiving fork 402, the two positioning plates 433 are driven to move oppositely through the bidirectional air cylinder 431, so that the center of the mirror frame is positioned, and the mirror frame is ensured to be consistent with the position of the corresponding lower module 3; then, the first sliding cylinder 412 drives the first receiving slide block 411, the second receiving slide block 413 and the third receiving slide block 414 to synchronously move towards the direction of the lower die holder 2, so that the frame is close to the position of the lower die block 3, at this time, the lower die holder 2 rotates by 90 degrees and the lower die block 3 faces the material receiving frame 403, then the second sliding cylinder 415 drives the second receiving slide block 413 and the third receiving slide block 414 to continuously move towards the direction of the lower die holder 2, and the material receiving frame 403 turns towards the direction of the lower die block 3 and the frame is arranged on the lower die block 3; the clamping cylinder 701 drives the clamping connecting block 702 and the clamping elastic sheet 703 to move towards the direction of the lower die holder 2, and the clamping elastic sheet 703 drives the clamping protrusion 705 to be clamped into the lens groove to clamp and fix the lens frame; then drive lower bolster 2 through driving actuating cylinder 505 drive and reverse 90 and make lower bolster 2 and lower module 3 state up, extrude the bending to the picture frame through last mould and lower die mechanism compound die, make picture frame bending shaping certain angle, later drive lower bolster 2 through revolving cylinder 502 and rotate 180, lower module 3 drops the picture frame after the shaping when down.

In this embodiment, for facilitating the dismounting and mounting of the lower mold device, the bottom plate 1 can slide horizontally relative to the spectacle frame bending forming machine, a U-shaped rotation axis groove 801 is provided at a corner position at one end of the bottom plate 1, a U-shaped opening direction of the rotation axis groove 801 is parallel to a side edge of the bottom plate 1, the bottom plate 1 is provided with a limiting cylinder 803 for limiting the rotation and the sliding of the bottom plate 1 relative to the spectacle frame bending forming machine, the limiting cylinder 803 is located at a corner position at one end of the bottom plate 1, which is far away from the rotation axis groove 801, an output shaft of the limiting cylinder 803 is. The frame bending forming machine is provided with a shaft penetrating into the rotating shaft center groove 801 and a groove for the output shaft of the limiting cylinder 803 to penetrate. The lower die device is convenient to fix and detach through the rotation axis groove 801 and the limiting cylinder 803, and the lower die device is convenient to replace or maintain through convenient detachment and removal.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a picture frame bending forming machine lower mould device which characterized in that: the bending and forming machine comprises a bottom plate (1) arranged on a bending and forming machine of a picture frame, a conveying mechanism arranged on the bottom plate (1) and used for conveying the picture frame, and a lower die mechanism used for mounting and fixing the conveyed picture frame; the lower die mechanism comprises a lower die base (2) rotationally connected to the bottom plate (1), a lower module (3) arranged on the lower die base (2) and used for a picture frame device, a rotating component used for driving the lower die base (2) to rotate, a clamping and fixing component used for clamping and fixing the picture frame, and an installation and adjustment component used for installing and adjusting the relative angle of the two lower modules (3); the lower die holder (2) is arranged horizontally in the rotating axial direction.

2. A lower die apparatus for a frame bending molding machine according to claim 1, wherein: the conveying mechanism comprises a receiving base (401) arranged on the bottom plate (1), a sliding component arranged on the base and sliding towards the direction of the lower die holder (2), a material receiving fork (402) arranged on the sliding component and abutted against the lower end face of the frame, a material receiving frame (403) arranged on the sliding component and used for abutting against the side wall of the frame, which is far away from the lower die holder (2), and a positioning component arranged on the bottom plate (1) and used for positioning the frame; the sliding assembly comprises a first receiving sliding block (411) which horizontally slides relative to the receiving base (401), a first sliding cylinder (412) which is used for driving the first receiving sliding block (411) to slide towards the direction of the lower die holder (2), a second receiving sliding block (413) which horizontally slides relative to the first receiving sliding block (411), a third receiving sliding block (414) which horizontally slides relative to the second receiving sliding block (413), a second sliding cylinder (415) which is used for driving the second receiving sliding block (413) to slide, and a third sliding cylinder (416) which is used for driving the third receiving sliding block (414) to slide, wherein the sliding directions of the second receiving sliding block (413) and the third receiving sliding block (414) are consistent with the sliding direction of the first receiving sliding block (411), the material receiving fork (402) is fixedly connected to the third receiving sliding block (414), and the material receiving frame (403) is hinged to the second receiving sliding block (413), and the material receiving frame (403) and the hinged end of the second receiving sliding block (413) are provided with a rotating torsion spring (421), the material receiving frame (403) is obliquely arranged from bottom to top in a direction deviating from the lower die holder (2), the first receiving sliding block (411) is provided with a connecting rod (422) abutted to the material receiving frame (403), the second receiving sliding block (413) slides towards the lower die holder (2) relative to the first receiving sliding block (411), and the material receiving frame (403) rotates towards the lower die holder (2) by taking the end part of the connecting rod (422) as a fulcrum.

3. A lower die apparatus for a frame bending molding machine according to claim 2, wherein: the positioning assembly comprises a bidirectional cylinder (431) fixedly connected to the bottom plate (1), two positioning blocks (432) symmetrically arranged at the output end of the corresponding bidirectional cylinder (431), and positioning plates (433) arranged on the positioning blocks (432) and in an L shape, wherein the two positioning plates (433) are oppositely arranged, and the mirror frame is positioned between the two positioning plates (433); locating plate (433) be horizontal sliding connection in locating piece (432), just locating plate (433) direction of sliding is on a parallel with first receiving slider (411) direction of sliding, just all be provided with between locating plate (433) and locating piece (432) and stir reset torsional spring (434) that locating plate (433) reset.

4. A lower die apparatus for a frame bending molding machine according to claim 1, wherein: the rotating component comprises a rotating shaft (501) arranged on the side wall of the lower die holder (2), a rotating cylinder (502) arranged on the bottom plate (1) and used for driving the rotating shaft (501), a gear (503) arranged on the rotating shaft (501), a rack (504) connected to the bottom plate (1) in a sliding mode and meshed with the gear (503), and a driving cylinder (505) arranged on the bottom plate (1) and used for driving the rack (504) to slide.

5. A lower die apparatus for a frame bending molding machine according to claim 1, wherein: the fixing assembly is arranged between the bottom plate (1) and the lower die holder (2) and used for avoiding the lower die holder (2) from overturning after being pressed, and comprises a fixing lug (521) arranged on the lower die holder (2) and protruding out of the side wall of the lower die holder (2), a fixing connecting rod (522) with one end rotatably connected to the bottom plate (1), a fixing bulge (523) arranged on the fixing connecting rod (522) and capable of abutting against the upper end face of the fixing lug (521), and a fixing cylinder (524) arranged on the bottom plate (1) and used for driving the fixing connecting rod (522) to rotate towards the direction of the lower die holder (2).

6. A lower die apparatus for a frame bending molding machine according to claim 4, wherein: the bottom plate (1) is provided with and rotates the support (511) of being connected with the one end that pivot (501) were kept away from in lower bolster (2), support (511) lateral wall is provided with control L shape control block (512) of lower bolster (2) turned angle, lower bolster (2) upper surface can butt in L shape control block (512) lower surface, just lower bolster (2) upset 180 degrees back lower bolster (2) can butt in L shape control block (512) upper surface, lower bolster (2) are provided with two hydraulic buffer (513) that can butt respectively in L shape control block (512) upper surface and lower surface.

7. A lower die apparatus for a frame bending molding machine according to claim 1, wherein: the clamping fixing component comprises a clamping connecting block (702) arranged on an output shaft of the clamping cylinder (701), and a clamping elastic sheet (703) arranged on the clamping connecting block (702) and in a V shape, wherein the clamping cylinder (701) is vertically upwards arranged on the lower die holder (2), the clamping elastic sheet (703) is arranged on the clamping connecting block (702) and in a V shape, the two opposite side walls of the lower die block (3) are provided with control grooves (704) for the clamping elastic sheet (703) to penetrate through, and the clamping elastic sheet (703) is fixedly connected with two clamping protrusions (705) which are respectively abutted to the inner wall of the lens frame.

8. A lower die apparatus for a frame bending molding machine according to claim 1, wherein: the mounting and adjusting component comprises a main support (601) arranged on the upper end face of the lower die holder (2), two branch supports (602) respectively arranged on two sides of the main support (601), a mounting component arranged between the lower die holder (2) and the branch supports (602) and used for fixing the lower die block (3) after driving the branch supports (602) to move, and an angle adjusting component arranged between the lower die holder (2) and the main support (601) and used for adjusting the bending angle of the two lower die blocks (3).

9. A lower die apparatus for a frame bending molding machine according to claim 8, wherein: the sub-frame (602) towards main support (601) direction sliding connection in lower die holder (2), just lower die holder (2) are provided with the promotion sub-frame (602) towards spring (614) that main support (601) removed, the angle adjustment subassembly including wear to locate lower die holder (2) and slidable connection in the regulation post (621) of lower die holder (2), set up in lower die holder (2) and supply wear to establish hole (622) that regulation post (621) wore to establish, threaded connection in lower die holder (2) and can penetrate to the locking bolt (623) of wearing to establish hole (622), main support (601) connect in adjust post (621) and follow regulation post (621) synchronous motion.

10. A lower die apparatus for a frame bending molding machine according to claim 1, wherein: the base plate (1) can slide horizontally relative to the mirror frame bending forming machine, a U-shaped rotating axis groove (801) is formed in the corner position of one end of the base plate (1), a limiting cylinder (803) used for limiting the base plate (1) to slide rotationally relative to the mirror frame bending forming machine is arranged on the base plate (1), and an output shaft of the limiting cylinder (803) is vertically arranged downwards and can protrude out of the lower end face of the base plate (1).

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