CN105269771A - Automatic demolding reverse injection mold and use method - Google Patents

Abstract

The invention provides an automatic demolding reverse injection mold and a use method. The mold comprises an upper mold body, a lower mold body, an upper mold plate for fixing the upper mold body and a lower mold plate for fixing the lower mold body. The mold further comprises an ejection mechanism. The ejection mechanism comprises a movable mold core for moving a product and an ejector pin plate for pushing the movable mold core to move. The ejector pin plate and the movable mold core are located on the two sides of the upper mold body respectively. The ejector pin plate is provided with multiple shutters for being connected with the lower mold plate. Multiple sleeves are arranged on the portions, corresponding to the shutters, of the lower mold plate. Each sleeve is arranged on the corresponding shutter in a sleeving manner to form containing space for containing the lower mold body and the upper mold body. The product can be subjected to rapid demolding and is not likely to be deformed or damaged, and more importantly, production cost is low.

Description

Automatic demoulding flip injection mold and using method

Technical field

The present invention relates to mould emptier technical field, espespecially a kind of automatic demoulding flip injection mold and using method.

Background technology

Mould is indispensable important tool in injection mo(u)lding, injection mo(u)lding is that the plastic material of hot melt state is injected at a high speed the airtight die cavity in mould with required form, treat plastic material cooling curing, open mould and the plastic cement products of solidification is ejected, to obtain the processing method of shaped article.There is due to injection mo(u)lding processing method the features such as the plastic cement products that shaping expense is low, molding cycle is short, forming process is simple and be easy to forming shape complexity, therefore very extensive in the application of plastic cement products application.

At present, existing four sides goes out TPUE rubber (being called for short TPU soft) the glue injection mold structure of back-off by patrix, counterdie, the major part compositions such as movable core rod.During production, upper and lower mould has been combined injecting glue, after die sinking, movable core rod related shaping plastic cement products entirety while ejecting patrix ejects, after by instruments such as operator's aluminium bars, the plastic cement products be tightly coated on movable core rod is firmly prized by force, thus there is following several large shortcoming:

1, during the plastic cement products demoulding, the thoroughly demoulding automatically can not be realized, need manual hand manipulation's assisted demoulding;

2, manually assisted demoulding time, the plastic cement that the surrounding due to plastic cement products is overflowed is coated on movable core rod stressed, there is demoulding difficulty, and manual hand manipulation's inequality of exerting oneself easily causes many bad phenomenon such as plastic cement products distortion, damage;

3, the human assistance demoulding is consuming time longer, and operator's operational motion is too loaded down with trivial details, and workload is comparatively large, and the manufacture execution cycle of one integral piece product is longer, and efficiency is lower and quality is bad higher, causes production cost higher.

Summary of the invention

The present invention overcomes the defect that above-mentioned injection mold exists, technical problem to be solved by this invention be to provide a kind of can fast demoulding, plastic cement products not yielding and damage and the lower automation demoulding flip injection mold of production cost.

For solving the problems of the technologies described above, technical scheme provided by the invention is as follows:

A kind of automatic demoulding flip injection mold, comprises upper die and lower die, and for the cope match-plate pattern of fixing described patrix and the lower bolster for fixing described counterdie;

Also comprise an ejecting mechanism, described ejecting mechanism comprises one for the movable core rod of movable product, and for promoting the ejector retainner plate of described movable core rod motion, described ejector retainner plate and described movable core rod lay respectively at the both sides of described patrix;

Described ejector retainner plate is provided with the multiple shutters for connecting described lower bolster, on described lower bolster, corresponding multiple described shutter place is provided with multiple described sleeve, and each described sleeve is all sheathed on the accommodation space corresponding described shutter formed for accommodating described counterdie and described patrix;

In the technical program, the inversion of lower die structure is traditionally arranged, stretched mechanical power during by opening shutter and sleeve between upper and lower mould converts the ejecting force of mould to, the action that ejects eliminating injection-moulding device is only drive ejector retainner plate to be ejected by movable core rod, injection mold achieves the object automatically falling to getting product, instead of robotic device or win product manually, reducing production cost, effectively realize fast demoulding.

Preferably, the push back pin of connection one for forcing lower bolster to return on described sleeve, described push back pin runs through cope match-plate pattern and is connected with ejector retainner plate.

The push back pin arranged can effectively limit lower bolster and returns, simultaneously ejector retainner plate and push back pin coordinate the sequencing that when controlling die sinking accurately, product stripping and product eject.Counterdie and Ccope closing machine can be driven, realize circulation injection molding.

Preferably, described movable core rod surrounding is provided with the multiple swinging blocks for freely rotating product.

The movable core rod arranged and arrange the swinging block of movable core rod surrounding, in the die sinking process of this injection mold, achieves product surrounding back-off feature from the automatic separation mould, eliminates the human assistance demoulding.

Preferably, described movable core rod four limit is provided with for limiting the guiding angle of described swinging block to pivot.

Guiding angle is set on four limits of movable core rod, product can be made to the central slide of mould, thus realize the function of Product Level slip.

Preferably, the end face of described swinging block is inclined plane, and the incline direction of described inclined plane is towards described movable core rod.

The end face of swinging block is arranged to inclined plane, and the direction tilted is towards movable core rod, swinging block can be made to do 360 ° with the direction that product shrinks coated dynamics rotate freely, reduce swinging block and produce fatigue strength probability, improve die life, thus achieve can ejecting product depart from movable core rod four sides back-off feature locations.

Preferably, the number of described swinging block is four, and point is located on four angles of described movable core rod.

By point four swinging blocks be located on movable mold core four angles, product can be swung equably, make product uniform force, effectively avoid unbalance stress to cause the damage of product edge.

Preferred further on the basis of above-mentioned technology, described cope match-plate pattern connects power set, described power set depart from described movable core rod for promoting product.

The power set that cope match-plate pattern connects, can depart from described movable core rod by power set for promoting product, realizing automation mechanized operation.

Preferably, described power set are cylinder.

Utilize cylinder as power set, not only structure is simple, is easy to installation and maintenance, controls conveniently simultaneously, and adjustment is also very simple, and price is lower, and the energy obtains conveniently, and environmental protection and energy saving, the stroke of importantly exerting oneself has a definite limitation, compares and is adapted at short stroke.

Preferably, described ejector retainner plate is arranged one for controlling the switch that described power set run, described switch-linear hybrid on described ejector retainner plate, and between described cope match-plate pattern;

When described switch contacts with described cope match-plate pattern, described power set run; When described switch is away from described cope match-plate pattern, described power set stop.

The switch arranged between ejector retainner plate and cope match-plate pattern further, effectively controlled the time point stretching out and retract of power set by switch, both achieved the object promoting product and fall, and served again the effect that power set can not knock each part mechanism, security is good, and vibrational power flow is more ingenious.

Preferably, the number of described shutter and described sleeve is four, and point is located at described accommodation space surrounding.

The shutter of identical number and the cooperation of sleeve, and both accommodation spaces of forming, can improve the stability of upper die and lower die, when can avoid matched moulds and die sinking, product offsets, the aesthetic property of raising product and regularity.

Preferably, also comprise one for receiving the receiving hopper of product, described receiving hopper is positioned at the below of product.

The receiving hopper arranged is mainly used for putting product, facilitates last phase tidying up.

Another object of the present invention is to provide a kind of using method of automatic demoulding flip injection mold,

The automatic demoulding flip injection mold that described automatic demoulding flip injection mold is above-mentioned, using method comprises:

A), described lower bolster and described cope match-plate pattern are carried out matched moulds;

B), in described counterdie and patrix, injection moulding liquid is injected;

C), described shutter and described sleeve depart from, and described ejector retainner plate promotes described movable core rod and ejects described patrix surface simultaneously;

D), described ejector retainner plate promotes described swinging block and swings;

E), described switch activated described power set promote product.

Preferably, e), described power set connect a push rod, and described push rod is positioned at the top of product, promote product and make it enter in described receiving hopper.

In sum, automatic demoulding flip injection mold provided by the invention, can bring following at least one beneficial effect:

1, automatic demoulding flip injection mold of the present invention will traditionally, counterdie is inverted and arranges, and power set set up, realize object injection mold falling to getting automatically product, instead of robotic device or win product manually, reduce production cost.

The ejector retainner plate that the cope match-plate pattern of 2, automatic demoulding flip injection mold of the present invention is arranged, and the push back pin be connected with shutter, can eject product, the sequencing that can control the demoulding exactly and eject while die sinking.

The movable core rod that the patrix of 3, automatic demoulding flip injection mold of the present invention is arranged and swinging block, by making it depart from movable core rod to the swing of product, and product edge does not answer unbalance stress and impaired.

4, the present invention arranges a switch between cope match-plate pattern and ejector retainner plate, the operation of ejector retainner plate is utilized to drive the motion of switch, effectively controlled the state of power set by the position relationship between switch and cope match-plate pattern, ensure collision between a parts simultaneously and cause damage, increasing the service life.

5, the west of movable core rod is arranged guiding angle by the present invention dexterously, and the end face of swinging block is arranged to inclined plane, by the cooperation of inclined plane with guiding angle, effectively can control the dynamics to product swing and direction.

6, the power set of invention are cylinder, and not only structure is simple, and is easy to installation and maintenance, and adjustment is also very simple, and the stroke of more optimizedly exerting oneself has a definite limitation, compares and is adapted at short stroke.

7, automated production of the present invention, reduce production cost, applicability is wider.

Accompanying drawing explanation

Below by clearly understandable mode, accompanying drawings preferred embodiment, is further described the above-mentioned characteristic of automatic demoulding flip injection mold, technical characteristic, advantage and implementation thereof.

Fig. 1 is the structural representation that automatic demoulding flip injection mold upper die and lower die of the present invention are in die opening state;

Fig. 2 is shutter and sleeve in the present invention, and the structural representation of ejecting mechanism;

Fig. 3 is the operating diagram of movable mold and ejector retainner plate in the present invention;

Fig. 4 is the enlarged drawing of part A in Fig. 3;

Fig. 5 is the structural representation not installing counterdie in the present invention;

Fig. 6 is the product structure figure utilizing automatic demoulding flip injection mold to make in this practicality newly.

Drawing reference numeral illustrates:

1, patrix; 11, cope match-plate pattern; 12, shutter; 13, push back pin; 14, limited block; 15, spacing collar; 16, feed nozzle;

2, counterdie; 21, lower bolster; 22, sleeve;

3, accommodation space;

4, ejecting mechanism; 41, ejector retainner plate; 42, micro-control switch; 43, movable core rod; 431, lead angle; 44, swinging block; 441, inclined plane; 442, dwang; 443, swinging block base;

5, cylinder; 51, push rod;

6, product;

7, receiving hopper.

Detailed description of the invention

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, contrast accompanying drawing is illustrated the specific embodiment of the present invention below.Apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other embodiment.

For making simplified form, only schematically show part related to the present invention in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only marked one of them.In this article, " one " not only represents " only this ", and also can represent the situation of " more than one ", in addition, arrow represents traffic direction.

In an embodiment of the present invention, referring to Fig. 1,2, a kind of automatic demoulding flip injection mold, comprise patrix 1, counterdie 2, and for the cope match-plate pattern 11 of fixing patrix 1 and the lower bolster 21 for fixing counterdie 2, secondly, also comprise an ejecting mechanism 4, and ejecting mechanism 4 comprises ejector retainner plate 41, and for the movable core rod 43 of ejecting product 6.Concrete ejector retainner plate 41 is arranged in cope match-plate pattern 11, and the push rod simultaneously on ejector retainner plate 41 runs through patrix 1 and is flexibly connected with movable core rod 43, realizes the both sides that ejector retainner plate 41 and movable core rod 43 points are located at patrix 1.During practice, cope match-plate pattern 11 is fixedly connected with patrix 1 near the side of lower bolster 21, and opposite side is used for fixing with stationary plane, and the both sides of cope match-plate pattern 11 can be connected and composed by two parts simultaneously, can conveniently install.Certainly do not limit in other embodiments, only need to realize ejector retainner plate 41 and movable core rod 43 is released from patrix 1, product 6 is released simultaneously.

In an embodiment, ejector retainner plate 41 arranges multiple shutter 12 further, and corresponding on lower bolster 21 relatively multiple shutter 12 place multiple sleeve 22 is set.During matched moulds, cope match-plate pattern 11 is close with lower bolster 21, and the sleeve 22 of setting is set in and runs through on the shutter 12 of cope match-plate pattern 11, can ensure that the position of patrix 1 and counterdie 2 can not offset.Patrix 1 and counterdie 2 are installed with in the accommodation space 3 formed at shutter 12 and sleeve 22 simultaneously.And during die sinking, shutter 12 departs from sleeve 22, movable core rod 43 is released patrix 1 by ejector retainner plate 41 simultaneously.It should be noted that cope match-plate pattern 11 maintains static in this application, and the relative cope match-plate pattern 11 of lower bolster 21 does up and down (being left and right directions in figure) motion.

Should illustrate, the feed nozzle 16 by cope match-plate pattern 11 is arranged during practice, realize, by plastics liquid heating patrix 1 and counterdie 2, after heating cooling, forming product 7.

In the present embodiment, after shutter 12 and sleeve 22 depart from, again during matched moulds, still need sleeve 22 to be set on shutter 12, so further connect a push back pin 13 for forcing lower bolster 21 to return on sleeve 22, and push back pin 13 runs through cope match-plate pattern 11 and is connected with ejector retainner plate 41.Can effectively control die sinking and eject the sequencing of movable core rod 43.

In the present embodiment, again referring to shown in Fig. 1,2, product 6 break away from moulds can not lack the setting of movable core rod 43, time simultaneously for making movable core rod 43 promote, prevent product 6 from coming off, and then the multiple swinging blocks 44 being used for freely rotating product 6 are set in the surrounding of movable core rod 43, the swinging block 44 of setting can solve the pulling force problem of the coated generation of product surrounding clout, avoids damaging product 6.Movable core rod 43 4 limit is arranged guiding angle 431, guiding angle 431, for tilt to central movable core rod 43, can ensure that product 6 moves to movable core rod 43 center, avoid coming off simultaneously.And then have the end face of swinging block 44 is set to inclined plane 441, and the incline direction of inclined plane 441 is towards the side of movable core rod 43, can have a barrier effect to product 6.

As shown in Figure 2, wherein, the swing of swinging block 44 is mainly connected with ejector retainner plate 41 by the dwang 442 running through cope match-plate pattern 11, and a swinging block base 443 is set in junction, can make swinging block 44 that 360 degree rotating freely occurs, reduce swinging block 44 fatigue strength, improve the mold use life-span.It should be noted that product 6 that swinging block 44 mainly ejects by swinging realization activity core rod 43 departs from the back-off feature locations at four sides on movable core rod 43 simultaneously, can horizontal slip allow product 6 depart from the function of self back-off position again.Thus be four by the number that swinging block 44 is arranged, and point be located on four angles of movable mold core 43.Certainly different numbers and the position of setting can be set according to the size of swinging block 44 end face, only need ensure product 6 uniform force.

Shown in Fig. 1, after guarantee product 6 departs from, also need product 6 to be left in a concrete position, so further connect power set on cope match-plate pattern 11, the push rod 51 connected by power set, is dragged to fixing position by the product 6 of disengaging.Wherein, power set are preferably cylinder 5, can certainly select other power set, and just the cost performance of cylinder 5 is higher in this application.It should be noted that the preservation for convenience of product 6 simultaneously, further below product 6, be provided with a receiving hopper 7, and receiving hopper 7 can be independent setting, also can be connected with cope match-plate pattern 11, meet push rod 51 and promote product 6 and can drop in receiving hopper 7.

Shown in Fig. 1,5, cylinder 5 starts push rod 51 and just pushed away movable core rod 43 after product 6 departs from completely, so further arrange a micro-control switch 42 run for control cylinder 5 on ejector retainner plate 41, and micro-control switch 42 concrete arrange between ejector retainner plate 41 and cope match-plate pattern 11, object realizes starting and closing micro-control switch 42 by the motion of ejector retainner plate 41.During practice, when micro-control switch 42 ejects movable core rod 43 (during die sinking), and when contacting with cope match-plate pattern 11, open cylinder 5 and run, promote push rod 51 simultaneously; When micro-control switch 42 is away from (during matched moulds) during cope match-plate pattern 11, cylinder 5 stops, and push rod 51 is retracted.

See Fig. 1, micro-control switch 42 can realize the restriction of position by cope match-plate pattern 11, but the sensitivity of both collision micro-control switchs 42 long-time is corresponding can be reduced, and can affect the damage of all the other parts simultaneously.Thus, see shown in Fig. 3,4, can limited block 14 and spacing collar 15 be set between micro-control switch 42 and patrix 1, effectively avoid micro-control switch 42 and patrix 1 to collide, and ensure the distance between cope match-plate pattern 11, improve the whole mold use life-span.It should be noted that the number of limited block 14 and spacing collar 15 sets according to the size of patrix 1, only need ensure ejector retainner plate 41 stable movement.

In the present embodiment, referring to Fig. 5,6, it is further four by the number that shutter 12 and sleeve 22 set, and divide the surrounding being located at accommodation space 3, the movement of patrix 1 and counterdie 2 position can be prevented, avoid the impact causing product 6 during matched moulds, improve the aesthetics of product simultaneously.

A kind of using method of automatic demoulding flip injection mold is also provided in embodiments of the invention,

Automatic demoulding flip injection mold in automatic demoulding flip injection mold above-described embodiment, using method comprises:

A), by lower bolster 21 and cope match-plate pattern 11 carry out matched moulds, during matched moulds, shutter 12 is set in fixed position in sleeve 22;

B), in counterdie 2 and patrix 1 inject injection moulding liquid, injection moulding liquid injects from the feed nozzle 16 that cope match-plate pattern 11 is offered;

C), die sinking time, shutter 12 and sleeve 22 depart from, and the core rod of ejector retainner plate 41 promotion activity simultaneously 43 ejects patrix 1 surface, is released by product 6;

D), simultaneously ejector retainner plate 41 continuing to promote the swing that swinging block 44 occurs 360 degree in the process promoted, product 6 edge and movable core rod 43 are departed from, avoid generation pulling force;

E), when ejector retainner plate 41 run to certain position micro-control switch 42 contact with cope match-plate pattern 11 time, start cylinder 5 promote product 6.

Wherein e), cylinder 5 also connects a push rod 51, concrete push rod 51 is arranged on the top being positioned at product 6, promotes product 6 after such cylinder 5 starts by push rod 51, and its product is directly dropped in receiving hopper 7.Collection and the arrangement of product 6 can be facilitated.Control lower bolster 21 by push back pin 13 after completing the manufacture of product 6 and carry out the production process of next product 6 to cope match-plate pattern 11 motion.

It should be noted that above-described embodiment all can independent assortment as required.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. an automatic demoulding flip injection mold, is characterized in that, comprising:

Upper die and lower die, and for the cope match-plate pattern of fixing described patrix and the lower bolster for fixing described counterdie;

Also comprise an ejecting mechanism, described ejecting mechanism comprises one for the movable core rod of movable product, and for promoting the ejector retainner plate that described movable core rod moves, described ejector retainner plate and described movable core rod lay respectively at the both sides of described patrix;

Described ejector retainner plate is provided with the multiple shutters for connecting described lower bolster, on described lower bolster, corresponding multiple described shutter place is provided with multiple described sleeve, and each described sleeve is all sheathed on the accommodation space corresponding described shutter formed for accommodating described counterdie and described patrix.

2. automatic demoulding flip injection mold according to claim 1, is characterized in that:

The push back pin of connection one for forcing lower bolster to return on described sleeve, described push back pin runs through cope match-plate pattern and is connected with ejector retainner plate.

3. automatic demoulding flip injection mold according to claim 1, is characterized in that:

Described movable core rod surrounding is provided with the multiple swinging blocks for freely rotating product;

Described movable core rod four limit is provided with for limiting the guiding angle of described swinging block to pivot;

The end face of described swinging block is inclined plane, and the incline direction of described inclined plane is towards described movable core rod side;

The number of described swinging block is four, and point is located on four angles of described movable core rod.

4. automatic demoulding flip injection mold according to claim 1, is characterized in that:

Described cope match-plate pattern connects power set, described power set depart from described movable core rod for promoting product.

5. automatic demoulding flip injection mold according to claim 4, is characterized in that:

Described power set are cylinder.

6. automatic demoulding flip injection mold according to claim 4, is characterized in that:

Described ejector retainner plate is also arranged one for controlling the switch that described power set run, described switch-linear hybrid is between described ejector retainner plate and described cope match-plate pattern;

When described switch contacts with described cope match-plate pattern, described power set run; When described switch is away from described cope match-plate pattern, described power set stop.

7. automatic demoulding flip injection mold according to claim 1, is characterized in that:

The number of described shutter and described sleeve is four, and point is located at described accommodation space surrounding.

8. automatic demoulding flip injection mold according to claim 1, is characterized in that:

Also comprise one for receiving the receiving hopper of product, described receiving hopper is positioned at the below of product.

9. a using method for automatic demoulding flip injection mold, is characterized in that:

The automatic demoulding flip injection mold of described automatic demoulding flip injection mold according to any one of claim 1-8, using method comprises:

A), described lower bolster and described cope match-plate pattern are carried out matched moulds;

B), in described counterdie and patrix, injection moulding liquid is injected;

C), described shutter and described sleeve depart from, and described ejector retainner plate promotes described movable core rod and ejects described patrix surface simultaneously;

D), described ejector retainner plate promotes described swinging block and swings;

E), described switch activated described power set promote product.

10. the using method of automatic demoulding flip injection mold according to claim 9, is characterized in that:

E) in, described power set connect a push rod, and described push rod is positioned at the top of product, promote product and make it enter in described receiving hopper.