CN114474631A

CN114474631A - Injection mold with arbitrary angle demoulding structure

Info

Publication number: CN114474631A
Application number: CN202210192236.4A
Authority: CN
Inventors: 王向阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-05-13

Abstract

The invention relates to the technical field of injection molds, in particular to an injection mold with an arbitrary angle demolding structure, which comprises a bottom plate, wherein a controller is arranged on one side of the bottom plate, a plurality of groups of ejector pins are uniformly arranged on the top of the bottom plate in an array manner, a top plate is arranged right above the bottom plate through a plurality of groups of vertical rods, a fixed mold is arranged at the bottom of the top plate, a movable mold is movably connected to the bottom of the fixed mold, connecting boxes are arranged on two sides of the movable mold, mounting grooves are arranged on two sides of each connecting box, rotating grooves penetrating through the tops of the mounting grooves and two side walls are formed in the tops of the mounting grooves, and top grooves are formed in the tops of the connecting boxes; through the structural design, the problem that a workpiece in a movable mould is easy to damage due to the unstable stress on a fixed mould in the demoulding process is avoided, meanwhile, the problem that the mould cannot be demoulded along any angle is solved, the adjustability of the mould in the demoulding process is increased, and the device can adapt to more use scenes.

Description

Injection mold with arbitrary angle demoulding structure

Technical Field

The invention relates to the technical field of injection molds, in particular to an injection mold with a demolding structure at any angle.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

Chinese invention patent 2017113097371 provides an injection mold easy to demold, comprising: the fixed die plate is provided with a plurality of forming cavities, and a plurality of positioning column forming structures are arranged around each forming cavity; the movable template is positioned above the fixed template and can be close to or far away from the fixed template, and the movable template is provided with a plurality of groups of lower pressing blocks corresponding to the positioning column forming structures; when the movable template is close to the fixed template, each group of lower pressing blocks can abut against two ends of the corresponding positioning column forming structure, and when the movable template is far away from the fixed template, each group of lower pressing blocks can be far away from two ends of the corresponding positioning column forming structure; however, in the demolding process of the injection mold, the damage caused by demolding of the injection mold often occurs, the fundamental reason is that the defective product is easy to occur in production due to the problems that the demolding angle is limited and the mold cannot be moved greatly, so that the injection mold with the demolding structure at any angle is needed.

Simultaneously, current injection mold can't carry out the drawing of patterns with the finished product along arbitrary angle to cause the position of collecting the finished product too single, retrieve the clearance overlength, recovery efficiency is low, can't realize high-efficient orderly work flow.

Disclosure of Invention

The invention aims to provide an injection mold with a demolding structure at any angle, which solves the problems that the injection mold in the market in the prior art is damaged due to demolding frequently caused by limited demolding angle and incapability of moving the mold greatly, defective products are easy to appear in production, and the demolding in any direction cannot be realized, so that recovery gaps appear in demolding and the efficiency is reduced.

In order to achieve the purpose, the invention adopts the following technical scheme: an injection mold with an arbitrary-angle demolding structure comprises a bottom plate, wherein a controller is arranged on one side of the bottom plate, multiple groups of ejector pins are uniformly arrayed at the top of the bottom plate, a top plate is arranged right above the bottom plate through multiple groups of vertical rods, a fixed mold is arranged at the bottom of the top plate, a movable mold is movably connected to the bottom of the fixed mold, connecting boxes are arranged on two sides of the movable mold, mounting grooves are formed in the connecting boxes, rotating grooves penetrating through the tops and two side walls of the mounting grooves are formed in the tops of the mounting grooves, an ejector groove is formed in the center of the tops of the connecting boxes, a bottom groove is formed in one side, close to the movable mold, of the center of the bottoms of the connecting boxes, and the mounting grooves, the ejector groove and the bottom groove are communicated;

the two sides of the bottom of the top plate are both provided with sliding grooves, two groups of cylinders are connected to two side walls of the inner part of each sliding groove in a sliding mode through a transmission mechanism, a piston rod is arranged at the output end of the bottom of each cylinder, a butt-joint semicircular groove is formed in one side, opposite to the piston rod, of each piston rod, and inserting holes are formed in the opposite sides of the piston rods;

the two sides of each mounting groove are provided with fastening parts, each fastening part comprises a side plate, one side of each side plate is fixedly connected with one end of the adjacent mounting groove, a circular tube is connected inside each side plate in a sliding mode, a magnetic blocking piece is arranged on the outer surface of each circular tube, a balancing weight is arranged at one end, far away from the magnetic blocking piece, of each circular tube, and an electromagnetic block is arranged at one side, close to the magnetic blocking piece, of each side plate;

the top of the movable mould is provided with a forming cavity, the bottom of the movable mould is uniformly provided with a plurality of groups of butt joint grooves in an array mode, the butt joint grooves are communicated with the forming cavity, the butt joint grooves are matched with the ejector pins, the inside of the forming cavity is hermetically and slidably connected with a movable block, two sides of the movable mould are provided with grooves, the inside of each groove is slidably connected with an L-shaped rotating shaft, and the other end of each L-shaped rotating shaft penetrates through the movable mould to reach the forming cavity and is fixedly connected with the bottom of the movable block;

controller control cylinder passes through the piston rod and drives the movable mould and move down to the bottom plate top, the tip of L type axis of rotation reachs the butt joint groove along the kerve, through drive mechanism and cylinder drive two relative piston rod removal and make two butt joint semi-circular slots carry L type axis of rotation tip, the circular telegram of one side electromagnetic block in the connecting box, the electromagnetic block drives the balancing weight and removes to the connecting box tip under the effect with magnetism separation blade magnetic repulsion, the movable mould takes place to rotate along L type axis of rotation.

The invention has at least the following beneficial effects:

1. this application is through setting up the cylinder, the movable mould, the stationary mould, mutually supporting of parts such as piston rod and connecting box, drive connecting box and the upward displacement of movable mould through the cylinder, mould plastics along the inlet pipe, drive connecting box and movable mould downstream and realize the drawing of patterns through the cylinder, through structural design, avoided the drawing of patterns in-process because of making the easy damaged problem of machined part in the movable mould to the unstable condition of stationary mould atress, and simultaneously, the problem that the mould can't remove by a wide margin has been solved, the controllability of drawing of patterns in-process mould has been increased, make the device increase more use scenes.

2. This application is through setting up the balancing weight, the connecting rod, decide the mould, move mutually supporting of parts such as mould and electromagnetism piece, set up through the balancing weight piece, make personnel's probability of skidding that has reduced during the pulling pipe, setting through the connecting rod, the stability of deciding the mould has been increased, setting through the electromagnetism piece, make the magnetic separation blade can cooperate the displacement distance of electromagnetism piece help pipe to carry on spacingly, make the motion state of pipe guarantee the horizontality, setting through slider and spout, make personnel conveniently remove the deciding the mould under the clamping status, setting through the supporting leg, the stability of device bottom has been increased, the shock resistance of device has been strengthened.

3. According to the injection molding device, through the mutual matching of the components such as the rotating groove, the magnetic blocking piece, the piston rod, the top groove, the bottom groove, the butt joint semicircular groove, the thimble, the molding cavity, the moving block, the electromagnetic block and the circular tube, the position of the piston rod is controlled through the electric telescopic rod, so that the piston rod is in butt joint with the rotating groove, the electromagnetic block drives the circular tube to be inserted into the jack through the magnetic blocking piece, the air pump drives the connecting boxes on the two sides of the moving mold to have height difference through the piston rod, and then injection molding finished products in the molding cavity are poured out in the direction perpendicular to the connecting boxes; when the finished product of moulding plastics in the shaping intracavity is along pouring with the connecting box horizontal direction when needs, the piston rod inserts the apical groove in, and two butt joint half slots press from both sides tight L type axis of rotation, the electromagnetism piece drives the pipe through the magnetic repulsion with the magnetic separation blade and removes, the interval of the balancing weight of connecting box both sides is different, the connecting box drives the movable mould and inclines to one side, the finished product of moulding plastics is poured along one side, the device has not only realized the stage demoulding effect to the finished product of moulding plastics, guarantee the integrality and the preface of drawing of patterns, simultaneously with the help of the different positions that the piston rod located, and then can change the angle of drawing of patterns, improve the adaptability and the controllability of device, avoid moulding plastics the finished product recovery clearance and reduce production efficiency, guarantee the production effect, and strong versatility, and easy operation, release labour.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

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

FIG. 2 is a schematic view of the cylinder structure of the present invention;

FIG. 3 is a schematic view of a junction box according to the present invention;

FIG. 4 is a schematic view of the internal structure of the fastening portion of the present invention

FIG. 5 is an enlarged view of the point A in FIG. 2;

FIG. 6 is a schematic view of the bottom plate structure of the present invention;

FIG. 7 is an enlarged view of the point B in FIG. 2;

fig. 8 is a front cross-sectional view of the moving die of the present invention.

In the figure: 1. a base plate; 2. supporting legs; 3. a vertical rod; 4. a top plate; 5. moving the mold; 6. fixing a mold; 7. a connecting rod; 8. a chute; 9. a slider; 10. a cylinder; 11. a piston rod; 12. a connection box; 13. a jack; 14. a rotating groove; 15. mounting grooves; 16. a fastening section; 1601. a circular tube; 1602. a magnetic catch; 1603. a spring; 1604. an electromagnetic block; 1605. a side plate; 1606. a balancing weight; 17. a feed pipe; 18. an electric telescopic rod; 19. a top groove; 20. a bottom groove; 21. butting the semicircular grooves; 22. a thimble; 23. a molding cavity; 24. a moving block; 25. a butt joint groove; 26. a groove; 27. an L-shaped rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

First embodiment

Referring to fig. 1-5, an injection mold with arbitrary angle demoulding structure, including bottom plate 1, one side of bottom plate 1 is equipped with the controller, each electric elements of controller electrical control, be equipped with roof 4 through multiunit montant 3 directly over bottom plate 1, the bottom of roof 4 is equipped with fixed mould 6, the bottom swing joint of fixed mould 6 has movable mould 5, four corners in top of bottom plate 1 all are equipped with montant 3, and the top of montant 3 and the bottom fixed connection of roof 4, can guarantee the stability of roof 4 through montant 3, when movable mould 5 matches with fixed mould 6, the clearance between 5 bottoms of movable mould and the bottom plate 1 is greater than movable mould 5's length and wide length, can realize movable mould 5's drawing of patterns process after the completion of moulding plastics like this.

Roof 4's top is equipped with inlet pipe 17, and inlet pipe 17's one end runs through roof 4 and is linked together with the top central point department of putting of fixed mould 6, squeeze into plastic solution to between moving mould 5 and the fixed mould 6 through inlet pipe 17, thereby realize the process of moulding plastics, moving mould 5's both sides all are equipped with connecting box 12, and connecting box 12's inside is equipped with mounting groove 15, the rotating groove 14 that runs through mounting groove 15 top and both sides wall is seted up at mounting groove 15's top, spout 8 has all been seted up to roof 4's bottom both sides, spout 8's both sides inner wall has two sets of cylinders 10 through drive mechanism sliding connection, cylinder 10's bottom output is equipped with piston rod 11, piston rod 11's the back of the body one side of the back of the body is equipped with jack 13, cylinder 10 can drive piston rod 11 downstream, and then make piston rod 11 deep inside rotating groove 14, accomplish assembly and drawing of patterns process.

One side of the mounting groove 15 is provided with a fastening portion 16, the fastening portion 16 includes a side plate 1605, one side of the side plate 1605 is fixedly connected with one end of the adjacent mounting groove 15, the side plate 1605 is connected with a circular tube 1601 in a sliding manner, one end of the circular tube 1601 penetrates through the side plate 1605 and is inserted into an insertion hole 13 formed in one side of the piston rod 11, so that the insertion and fixation can be completed, a magnetic blocking piece 1602 adapted to the mounting groove 15 is sleeved on the outer ring of the circular tube 1601, one side of the magnetic blocking piece 1602 and one side of the adjacent side plate 1605 are elastically connected through a spring 1603, an electromagnetic block 1604 is arranged on one side of the side plate 1605 close to the magnetic blocking piece 1602, the magnetism of the electromagnetic block 1604 close to the end of the magnetic blocking piece 1602 is the same as that of the magnetic blocking piece 1602, the magnetic repulsion force of the electromagnetic block 1604 and the magnetic blocking piece 1602 can drive the circular tube 1601 to slide along the mounting groove 15 and enable the end of the circular tube 1601 to be inserted and fixed with the insertion hole 13 in an insertion manner, when the insertion connection is completed, it is only necessary to control the electromagnetic block 1604 to be powered off, and the circular tube 1601 is restored to the original position and disconnected from the plug 13 under the action of the spring 1603.

Spring 1603 is installed in the outer lane of pipe 1601, and the one end of spring 1603 and one side fixed connection of adjacent magnetic separation blade 1602 to the other end of spring 1603 and one side fixed connection of adjacent curb plate 1605, the one end that mounting groove 15 was kept away from to pipe 1601 is equipped with the balancing weight 1606, through the setting of balancing weight 1606, has reduced the probability of skidding when making personnel pulling pipe 1601.

The both sides of the both sides outer wall of decide mould 6 all are equipped with connecting rod 7, and connecting rod 7 keeps away from the one end of deciding mould 6 and the bottom fixed connection of adjacent roof 4, through the setting of connecting rod 7, has increased the stability of moving 5 bottoms of mould.

Drive mechanism includes electric telescopic handle 18, electric telescopic handle 18's one end and the both sides wall fixed connection of spout 8, electric telescopic handle 18's the other end is equipped with slider 9, slider 9's bottom and the top fixed connection of cylinder 10, the inside both sides of spout 8 are equipped with the concatenation groove, slider 9's both sides face and concatenation groove sliding connection, setting through slider 9 and spout 8, make personnel conveniently remove movable mould 5 under the clamping status, can control the position of slider 9 in spout 8 effectively through electric telescopic handle 18 simultaneously, and then can effectually guarantee that the position of slider 9 is in required position.

Four corners in bottom of bottom plate 1 all are equipped with supporting leg 2, and are concrete, through supporting leg 2's setting, have increased the stability of device bottom, have strengthened the shock resistance of device.

During the use, 18 starts to drive slider 9 in spout 8 of controller control electric telescopic handle, make the piston rod 11 and the position phase-match that rotates groove 14 of cylinder 10 bottom, cylinder 10 starts to drive and drives piston rod 11 downstream and reach and rotate inside groove 14 simultaneously, electromagnetism piece 1604 circular telegram possesses magnetism, electromagnetism piece 1604 drives pipe 1601 and removes to keeping away from curb plate 1605 end under the effect of the magnetic repulsion power to magnetism separation blade 1602, pipe 1601 is pegged graft with jack 13 and is fixed, later cylinder 10 reverse start-up drives piston rod 11 and moves upwards, piston rod 11 moves upwards and drives pipe 1601 rebound, pipe 1601 rebound drives whole connecting box 12 and moves upwards, can drive moving die 5 rebound and match with fixed die 6 during connecting box 12 rebound.

The personnel carry out injection molding operation to the inner cavities of the fixed mold 6 and the movable mold 5 through the feeding pipe 17, after the mold is cooled, the connecting box 12 and the movable mold 5 are driven to move downwards through the air cylinder 10, so that the fixed mold 6 is separated from the movable mold 5, the demolding process is realized, meanwhile, the controller controls the electric telescopic rod 18 in the chute 8, so that the electric telescopic rod drives the sliding block 9 to move in the chute 8, so that the movable mold 5 carries out left and right displacement, the personnel can conveniently take out a workpiece from the movable mold 5, through the structural design, the stability of the bottom of the movable mold 5 is improved through the arrangement of the connecting rod 7, through the arrangement of the electromagnetic block 1604, the magnetic baffle 1602 can be matched with the electromagnetic block 1604 to help the moving distance of the circular pipe 1601 to limit, so that the moving state of the circular pipe 1601 can be ensured in a horizontal state, through the arrangement of the supporting legs 2, the stability of the bottom of the device is improved, and the shock resistance of the device is enhanced, the problem that a machined part in the movable die 5 is easy to damage due to the unstable stress of the movable die 5 in the demolding process is avoided, meanwhile, the problem that the die cannot move greatly is solved, the adjustability of the die in the demolding process is increased, and more use scenes are increased.

Second embodiment

Referring to fig. 6-8, when in actual use, because the finished product of moulding plastics is moulded plastics in movable mould 5, consequently still need the manual work to carry out the drawing of patterns after movable mould 5 separates with fixed mould 6, drawing of patterns is inefficient, demoulding effect is poor, and current injection mould can't realize the effect of arbitrary angle drawing of patterns, and the finished product of moulding plastics's drop point is unanimous after the drawing of patterns, consequently there is drawing of patterns recovery clearance when the product production, consequently need frequent recovery frame that will fill the finished product of moulding plastics to change, reduce production efficiency, can't realize higher adaptability and regulation performance, in order to solve above problem, realize its effect of arbitrary angle drawing of patterns and recovery, this injection mould with arbitrary angle demoulding structure still includes: the top of connecting box 12 is equipped with top groove 19, and one side that the bottom of connecting box 12 is close to movable mould 5 is equipped with kerve 20, mounting groove 15, top groove 19 and kerve 20 homogeneous phase intercommunication, therefore piston rod 11 not only can peg graft in rotating groove 14, according to the drawing of patterns angle and the recovery position of difference, can carry out work in pegging graft to top groove 19 with piston rod 11.

The opposite side of the piston rod 11 is provided with a butt joint semi-circular groove 21, when the two piston rods 11 are opposite, the two butt joint semi-circular grooves 21 are spliced to form a complete circular hole, and then subsequent butt joint angle rotation work can be carried out.

A counterweight block 1606 is arranged at one end of the circular tube 1601 far away from the magnetic baffle 1602, the weight of the counterweight block 1606 is larger, when the position of the circular tube 1601 in the installation groove 15 is changed, the position of the weight block 1606 is changed synchronously, and similarly, since the two sides of the installation groove 15 are symmetrically provided with the balancing weights 1606, when the circular tubes 1601 at the two sides in the installation groove 15 move the same distance, the weights 1606 are symmetrically distributed on both sides of the connecting box 12, so that the problem of unbalanced weight is not caused, therefore, the inclination of the connection box 12 is not caused, and also, when the moving distance of the circular tube 1601 at one side in the installation slot 15 is large, the distance between the counterweight 1606 on the other side and the center of the connecting box 12 is greater than that on the other side, as can be seen from the physical relationship between the force arm and the force, when the distance of the weight block 1606 on one side of the connection box 12 is greater than the other side, the connection box 12 will tilt to the side, and then the demolding process at different angles is realized.

The top of the movable mold 5 is provided with a molding cavity 23, the molding cavity 23 is mainly used for injection molding, the top of the bottom plate 1 is uniformly provided with a plurality of groups of ejector pins 22 in an array, the ejector pins 22 are used for ejecting injection molding finished products in the molding cavity 23, the bottom of the movable mold 5 is uniformly provided with a plurality of groups of butt-joint grooves 25 in an array, the butt-joint grooves 25 are communicated with the molding cavity 23, the butt-joint grooves 25 are matched with the ejector pins 22, the interior of the molding cavity 23 is hermetically and slidably connected with a movable block 24, therefore, when the movable mold 5 completes injection molding and moves downwards to be separated from the fixed mold 6, the ejector pins 22 are matched with the butt-joint grooves 25 and continuously reach the interior of the molding cavity 23 along the butt-joint grooves 25, the ejector pins 22 upwards contact with the movable block 24 to drive the movable block 24 to move upwards, and further, the movable block 24 drives the injection molding finished products at the top to be separated from the molding cavity 23, so as to complete the automatic demolding process, two sides of the movable mold 5 are provided with grooves 26, the inside sliding connection of recess 26 has L type axis of rotation 27, and the other end of L type axis of rotation 27 passes moving mould 5 and arrives molding cavity 23 and with the bottom fixed connection of movable block 24, and when movable block 24 moved up, movable block 24 can drive the L type axis of rotation 27 of bottom and move upwards in recess 26, then L type axis of rotation 27 tip passes inside kerve 20 reachs mounting groove 15, and then can carry out subsequent rotation process of drawing of patterns.

After two butt joint half slots 21 butt joint relatively with L type axis of rotation 27 phase-match, then when L type axis of rotation 27 reachd mounting groove 15 inside along kerve 20, realize two relative piston rod 11 contacts through the cooperation of electric telescopic handle 18 with cylinder 10, the butt joint half slot 21 of two piston rod 11 opposite faces splices into a round hole each other simultaneously, and L type axis of rotation 27 is located this round hole, later realizes the process that connecting box 12 rotated the drawing of patterns round L type axis of rotation 27 with the help of the effect of balancing weight 1606.

The length of top groove 19 is greater than the sum of the lengths of two piston rods 11, the width of top groove 19 is greater than the width of piston rod 11, and there is the clearance between top groove 19 and the piston rod 11, just so can realize that piston rod 11 position is motionless, and the process that connecting box 12 rotated around L type axis of rotation 27 guarantees the stability and the maneuverability of device motion.

The positions of the bottom groove 20 and the groove 26 are matched, the end part of the L-shaped rotating shaft 27 extends out of the groove 26, the length of the extending end of the L-shaped rotating shaft 27 is smaller than that of the bottom groove 20, and therefore the L-shaped rotating shaft 27 can move in the groove 26 and can reach the installation groove 15 along the bottom groove 20.

All be equipped with all around the bottom plate 1 and retrieve the frame, the uninterrupted nature of work has been realized to the frame is retrieved to the multiunit, and can retrieve the finished product of moulding plastics with the help of retrieving the frame, and retrieve according to the drawing of patterns angle of difference, strong adaptability, discriminative nature is strong, be equipped with sealed clean ring around the movable block 24, the inside sliding connection of sealed clean ring and shaping chamber 23, sealed clean ring guarantees the sealed sliding connection of movable block 24 and shaping chamber 23, movable block 24 can also clean shaping chamber 23 inside with the help of sealed clean ring when sliding in shaping chamber 23 simultaneously, and then guarantee shaping chamber 23's clean effect.

The bottom of the fixed mold 6 is provided with a top cavity, the top cavity is matched with the molding cavity 23, and the top cavity and the molding cavity 23 jointly cooperate to realize the injection molding finished product process.

During the use, all be equipped with around bottom plate 1 and retrieve the frame, consequently need retrieve the finished product of moulding plastics according to drawing of patterns angle in to the recovery frame of difference when, just need different working process, this scheme concrete analysis retrieves for example to two recovery frames parallel with connecting box 12 and two recovery frames perpendicular with connecting box 12.

The first kind is for retrieving the condition that the frame was retrieved to two with connecting box 12 vertically and carry out the analysis, it is concrete, initial condition moves mould 5 down and is located bottom plate 1 top, and thimble 22 is located butt joint groove 25, controller control electric telescopic handle 18 starts to drive slider 9 and removes along spout 8 this moment, slider 9 drives the cylinder 10 removal of bottom, when cylinder 10 is located rotation groove 14 top, electric telescopic handle 18 stops to remove and cylinder 10 starts to drive piston rod 11 and moves down, piston rod 11 moves down to inside the rotation groove 14, the circular telegram of electromagnetic block 1604 possesses magnetism, it moves 1602 extension spring 1603 to keeping away from curb plate 1605 end removal to drive magnetic separation blade 1602 under the effect of the magnetic repulsion force of electromagnetic block 1604 to magnetic separation blade 1602, magnetic separation blade 1602 drives pipe 1601 and moves and fixes with jack 13 grafting to keeping away from curb plate 1605 end removal.

After the fixing of the piston rod 11 and the connecting box 12 is completed, the cylinder 10 is started reversely to drive the piston rod 11 to move upwards, the piston rod 11 drives the connecting box 12 to move upwards when moving upwards, the connecting box 12 drives the movable mould 5 to move upwards when moving upwards, the movable mould 5 is matched and buckled with the fixed mould 6 after moving upwards, the sealing assembly process is completed, meanwhile, in the moving process of the movable mould 5, the thimble 22 is separated from the butt joint groove 25 for splicing, the movable block 24 falls to the bottom of the forming cavity 23 under the action of self weight, plastic melt is poured between the movable mould 5 and the fixed mould 6 along the feeding pipe 17, after the injection molding and cooling are completed, the cylinder 10 is started to drive the movable mould 5 to move downwards, the movable mould 5 is separated from the fixed mould 6 for splicing, and simultaneously under the condition that the injection molding finished product is self weight, the injection molding finished product can be positioned in the forming cavity 23 and synchronously descends, when the cylinder 10 drives the movable mould 5 to the lowest point through the piston rod 11, the ejector pins 22 are inserted into the abutting grooves 25, the ejector pins 22 drive the moving block 24 to move upwards in the forming cavity 23, the moving block 24 drives the injection molding finished product on the top of the moving block to move upwards, the injection molding finished product is separated from the forming cavity 23 and demolding is completed, meanwhile, when the moving block 24 moves upwards, the moving block can drive the L-shaped rotating shaft 27 to move upwards in the groove 26 synchronously, the end portion of the L-shaped rotating shaft 27 enters the mounting groove 15 along the bottom groove 20, but the L-shaped rotating shaft is not limited, and various performances cannot be hindered.

After the demoulding of the injection molding finished product is finished, the injection molding finished product needs to be recovered into a recovery cavity, at the moment, the air cylinder 10 is reversely started to drive the movable mold 5 to move upwards through the piston rod 11 and the connecting box 12, the thimble 22 is separated from the butt joint groove 25, at the moment, the movable block 24 in the molding cavity 23 moves downwards under the action of self weight to recover the original position, and the L-shaped rotating shaft 27 synchronously recovers the original position, because the bottom of the fixed mold 6 is also provided with the top cavity matched with the molding cavity 23, the height of the injection molding finished product is larger than that of the molding cavity 23, the upper part of the injection molding finished product is positioned outside the movable mold 5, and meanwhile, the rotating groove 14 is in a semicircular opening state, only one side of the air cylinder 10 needs to be started to drive the connecting box 12 to move downwards through the piston rod 11, the other side of the air cylinder 10 is reversely started to drive the connecting box 12 to move upwards through the piston rod 11, and the piston rod 11 is rotatably inserted into the circular tube 1601 through the insertion hole 13, therefore, the connecting boxes 12 on the two sides of the movable mold 5 have a height difference, the movable mold 5 can be inclined synchronously, injection molding finished products on the top of the movable mold can fall off along the forming cavity 23 by virtue of the inclination, and then the process of recycling the injection molding finished products is completed, in particular, because the piston rods 11 are positioned at the positions corresponding to the rotating grooves 14, a gap exists between the two piston rods 11, the injection molding finished products can fall into a recycling frame along the gap between the piston rods 11, the position of the injection molding finished products can be corrected by virtue of the gap, the injection molding finished products are prevented from being scattered randomly into the recycling frame to damage the quality of the injection molding finished products, similarly, the controller can control the air cylinder 10 on any side to be started to drive the connecting boxes 12 to move downwards by virtue of the piston rods 11, and the other side only needs to move towards the opposite direction, so that the injection molding finished products can fall off and be recycled along any side in the direction vertical to the connecting boxes 12 by virtue of the process, the device has better adaptability and adjustability.

After demolding is finished, the cylinder 10 is only required to repeat the process, the piston rod 11 is used for driving the connecting box 12 and the movable mold 5 to move upwards to be spliced with the fixed mold 6 for injection molding and demolding.

Secondly, analyzing the recycling condition in two recycling frames parallel to the connecting box 12, wherein the injection molding process is the same as that described above, after the injection molding is completed, the air cylinder 10 is started to drive the connecting box 12 and the movable mold 5 to move downwards through the piston rod 11, when the movable mold 5 moves downwards and reaches the top of the bottom plate 1, the thimble 22 is inserted into the butt-joint groove 25, the thimble 22 extends into the molding cavity 23 along the butt-joint groove 25 and drives the moving block 24 to move upwards, when the moving block 24 moves upwards, the injection molded product at the top of the moving block is driven to be separated from the molding cavity 23, meanwhile, the L-shaped rotating shaft 27 moves upwards along the groove 26 along with the moving block 24, the end part of the L-shaped rotating shaft 27 reaches the installation groove 15 through the bottom groove 20, the controller controls the electromagnetic block 1604 to be powered off, the magnetic block 1602 moves towards the end close to the electromagnetic block 1604 under the elastic force of the spring 1603, the circular tube 1601 moves synchronously along with the reverse movement of the magnetic block 1602, the circular tube 1601 is separated from the insertion hole 13, and the balancing weight 1606 moves synchronously along with the reverse movement of the circular tube 1601, and because the balancing weight 1606 at the two ends of the connecting box 12 moves synchronously, the force applied at the two ends of the connecting box 12 is still in a symmetrical balance state, and the connecting box 12 and the movable mold 5 are still in a stable balance state.

At the moment, the controller controls the cylinders 10 on the two sides to move reversely to drive the piston rods 11 to move upwards and separate from the rotating grooves 14, the electric telescopic rods 18 in the same sliding groove 8 are started to drive the sliding blocks 9 to move relatively close to each other, when the distance between the two sliding blocks 9 is smaller than a preset value, the cylinders 10 are started to drive the piston rods 11 at the bottom to move downwards, the piston rods 11 move downwards into the top grooves 19 without colliding with the two sides of the L-shaped rotating shaft 27, after the piston rods 11 descend to a certain distance, the controller controls the electric telescopic rods 18 to continuously start to drive the two sliding blocks 9 in the same sliding groove 8 to move relatively close to each other, finally the two sliding blocks 9 are contacted with each other, meanwhile, the two piston rods 11 at the bottom synchronously move close to each other and are contacted with each other, the butt semicircular grooves 21 on the opposite sides of the two piston rods 11 are spliced into a circular hole, and the end part of the L-shaped rotating shaft 27 is positioned in the circular hole, and the splicing process in this case is completed.

Then the controller controls the cylinder 10 to start reversely to drive the piston rods 11 to move upwards, the piston rods 11 drive the L-shaped rotating shafts 27 to move upwards, the L-shaped rotating shafts 27 move upwards to drive the moving blocks 24 to move upwards, the moving blocks 24 move upwards to drive the injection molding products at the tops to move upwards, and when the L-shaped rotating shafts 27 move upwards to the maximum distance in the grooves 26 and contact with the tops of the grooves 26, the L-shaped rotating shafts 27 continue to move upwards to drive the movable mold 5 to move upwards, the ejector pins 22 are separated from the butting grooves 25, and at this time, the distance between the balancing weights 1606 at two sides of the connecting box 12 and the end of the connecting box 12 is the same, so that the whole movable mold 5 is in a static balance state, and even if the circular hole formed by the butting semicircular grooves 21 between the L-shaped rotating shafts 27 and the two piston rods 11 is in a rotating connection state, the movable mold 5 cannot rotate.

When the cylinder 10 drives the connecting box 12 and the movable mold 5 to move upwards to a proper height through the piston rod 11, and an injection molding product demolded in the molding cavity 23 needs to be recovered, the controller controls the electromagnetic block 1604 on one side inside the connecting box 12 on both sides to be electrified, the electromagnetic block 1604 drives the magnetic block 1602 to move along the butt-joint groove 25 to the end far away from the side plate 1605 by virtue of magnetic repulsion force after being electrified, the magnetic block 1602 drives the circular tube 1601 to move synchronously, the circular tube drives the counterweight 1606 on the other end to move towards the end near the side plate 1605, the distance between the counterweight 1606 and the end of the connecting box 12 is reduced, the gravity of the counterweight 1606 is unchanged, therefore, the moments applied to both sides of the connecting box 12 are different, the connecting box 12 tilts downwards in opposite directions under the action of the moment, the connecting box 12 drives the movable mold 5 to tilt downwards synchronously, the injection molding product inside the molding cavity 23 slides downwards along the top of the movable mold 5 under the self-weight condition and is recovered to the interior of the recovery cavity, thereby completing the demolding process.

After demolding is completed, the controller controls the electromagnetic block 1604 to be powered off, the magnetic baffle 1602 is driven to restore to the original position under the action of the elastic force of the spring 1603, the magnetic baffle 1602 drives the circular tube 1601 and the counterweight 1606 to restore to the original position, the torque on two sides of the connecting box 12 is equal, the connecting box 12 and the movable mold 5 restore to the horizontal position, then the air cylinder 10 drives the connecting box 12 and the movable mold 5 to move downwards to the top of the bottom plate 1 through the piston rod 11, the thimble 22 is inserted into the butt-joint groove 25, the controller controls the electric telescopic rod 18 to be started reversely to drive the sliding block 9 to move in the opposite direction, the two piston rods 11 are separated from the contact state, the two butt-joint semicircular grooves 21 are separated from the L-shaped rotating shaft 27, the air cylinder 10 drives the piston rod 11 to move reversely to be separated from the top groove 19, the piston rod 11 is driven to be inserted into the rotating groove 14 again under the combined action of the electric telescopic rod 18 and the air cylinder 10, and the controller controls the electromagnetic block 1604 to be powered on, and then the magnetic repulsion force of the electromagnetic block 1604 and the magnetic catch 1602 drives the circular tube 1601 to be inserted into the insertion hole 13 again, and then the above process is repeated.

The device has not only realized guaranteeing the integrality and the orderliness of drawing of patterns to the finished product of moulding plastics stage demoulding process, with the help of the different positions that piston rod 11 was located simultaneously, and then can change the angle of drawing of patterns, improves the adaptability and the controllability of device, avoids moulding plastics finished product recovery clearance and reduces production efficiency, guarantees production effect, and the commonality is strong, easy operation, release labour.

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 merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An injection mold with an arbitrary-angle demolding structure comprises a bottom plate, wherein a controller is arranged on one side of the bottom plate, and the injection mold is characterized in that multiple groups of ejector pins are uniformly arrayed at the top of the bottom plate, a top plate is arranged right above the bottom plate through multiple groups of vertical rods, a fixed mold is arranged at the bottom of the top plate, a movable mold is movably connected to the bottom of the fixed mold, connecting boxes are arranged on two sides of the movable mold, a mounting groove is formed in each connecting box, a rotating groove penetrating through the top of the mounting groove and two side walls is formed in the top of the mounting groove, an ejector groove is formed in the center of the top of each connecting box, a bottom groove is formed in one side, close to the movable mold, of the center of the bottom of each connecting box, and the mounting groove, the ejector groove and the bottom groove are communicated;

2. The injection mold with the demolding structure at any angle according to claim 1, wherein one side of the magnetic blocking piece is elastically connected with one side of the adjacent side plate through a spring, the spring is installed on an outer ring of the circular tube, one end of the spring is fixedly connected with one side of the adjacent magnetic blocking piece, and the other end of the spring is fixedly connected with one side of the adjacent side plate.

3. The injection mold with the demolding structure at any angle as claimed in claim 1, wherein connecting rods are arranged on two sides of the outer walls of the two sides of the fixed mold, and one end of each connecting rod, far away from the fixed mold, is fixedly connected with the bottom of the adjacent top plate.

4. The injection mold with the demolding structure at any angle as set forth in claim 1, wherein one end of the circular tube penetrates through the side plate to be inserted into the insertion hole formed in one side of the piston rod, and the two opposite butt semicircular grooves are butted and then matched with the L-shaped rotating shaft.

5. The injection mold with the demolding structure with the optional angle as claimed in claim 1, wherein the transmission mechanism comprises an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with two side walls of the sliding groove, the other end of the electric telescopic rod is provided with a sliding block, the bottom of the sliding block is fixedly connected with the top of the air cylinder, splicing grooves are formed in two sides inside the sliding groove, and two side surfaces of the sliding block are slidably connected with the splicing grooves.

6. The injection mold of claim 1, wherein the controller controls the electrical components electrically, and the bottom of the bottom plate has support legs at four corners.

7. The injection mold with the demolding structure at any angle as set forth in claim 1, wherein a feeding pipe is arranged at the top of the top plate, one end of the feeding pipe penetrates through the top plate to be communicated with the center of the top of the fixed mold, a top cavity is formed at the bottom of the fixed mold, and the top cavity is matched with the molding cavity.

8. The injection mold with any-angle demolding structure as claimed in claim 1, wherein when the movable mold is matched with the fixed mold, the gap between the bottom of the movable mold and the bottom plate is greater than the length of the length and the width of the movable mold, the length of the top groove is greater than the sum of the lengths of the two piston rods, and the width of the top groove is greater than the width of the piston rod.

9. The injection mold with the demolding structure with any angle as set forth in claim 1, wherein the bottom groove is matched with the groove in position, the end of the L-shaped rotating shaft extends out of the groove, and the length of the extending end of the L-shaped rotating shaft is smaller than that of the bottom groove.

10. The injection mold with the demolding structure at any angle as set forth in claim 1, wherein the bottom plate is provided with a recycling frame all around, the moving block is provided with a sealing cleaning ring all around, and the sealing cleaning ring is slidably connected with the inside of the molding cavity.