CN108638455A

CN108638455A - A kind of injection molding device facilitating feeding

Info

Publication number: CN108638455A
Application number: CN201810212755.6A
Authority: CN
Inventors: 毛玉珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-15
Filing date: 2018-03-15
Publication date: 2018-10-12

Abstract

The invention discloses a kind of injection molding devices facilitating feeding, including lower die, the upper mold above lower die, demoulding column, the upper die holder in upper mold, injection channel, the injection molding cavity in lower die and dismountable lower die holder in injection molding cavity between upper die and lower die；The workpiece ejection piece is equipped with the rolling member for reducing the frictional force between the workpiece ejection piece and opening when the relatively described opening carries out expanding-contracting action and the positioning device for being positioned to the rolling member.It in the present invention after workpiece injection molding, needs to be come out by demoulding in lower die holder, by the setting of workpiece ejection piece, the jacking operation to workpiece can be fast implemented so that workpiece is directly detached from lower die holder in discharging, and demoulding is quick；And by the setting of rolling member, effectively reduce the frictional force between workpiece ejection piece and opening so that workpiece ejection piece it is flexible more smooth, guarantee workpiece is smoothly ejected.

Description

A kind of injection molding device facilitating feeding

Technical field

The invention belongs to injection molding technical fields, more particularly, to a kind of injection molding device facilitating feeding.

Background technology

Injection molding is a kind of method of industrial products production moulding, is that thermoplastic or thermosetting property material are utilized plastic shaping The method that variously-shaped plastic products are made in mold.Existing injection-moulding device is usually that injection molding machine mating mold is molded into together Type, under this kind of mode, an injection-moulding device can only be molded the plastic products of corresponding die shape.It needs to be molded different plastics systems When product, it is necessary to replace different molds, but in existing injection-moulding device, when workpiece is demoulded, workpiece and mold it Between be difficult to detach, demoulding is difficult.

Invention content

For overcome the deficiencies in the prior art, provide that a kind of material conveniently can demould smoothly facilitates feeding to the present invention Injection molding device.

To achieve the goals above, the present invention uses following technical scheme：A kind of injection molding device facilitating feeding, packet Include lower die, the upper mold above lower die, the demoulding column between upper die and lower die, the upper die holder in upper mold, injection molding Channel, the injection molding cavity in lower die and dismountable lower die holder in injection molding cavity；The lower die is ejected equipped with workpiece Part and with the matched actuator of workpiece ejection piece, the lower die holder be equipped with for the workpiece ejection piece stretch out opening；Institute Workpiece ejection piece is stated to be equipped with for when the relatively described opening carries out expanding-contracting action reducing between the workpiece ejection piece and opening Frictional force rolling member and positioning device for being positioned to the rolling member.In the present invention after workpiece injection molding, It needs to be come out by demoulding in lower die holder, by the setting of workpiece ejection piece, the jacking operation to workpiece can be fast implemented so that work Part is directly detached from lower die holder in discharging, and demoulding is quick；And it by the setting of rolling member, effectively reduces workpiece ejection piece and opens Mouthful between frictional force so that workpiece ejection piece it is flexible more smooth, guarantee workpiece smoothly ejected；Positioning element can be to rolling Moving part carries out effective position, ensures rolling member the case where workpiece ejection piece is not in displacement, is not in that rolling member stacks To one piece, the case where mutually hitting and influence rolling member rolling effect.

Further, the positioning device includes the first positioning sleeve being sheathed on outside the workpiece ejection piece and the second positioning Set；First positioning sleeve is equipped with to be equipped with and rolling with matched first positioning port of the rolling member, the second positioning sleeve Matched second positioning port of part.

Further, the diameter of first positioning port is equal to or more than the diameter of the rolling member；Pass through the first positioning Upper first positioning port of set first carries out Primary Location to rolling member in a pre-installation, installs the second positioning sleeve again later, ensures installation When the second positioning sleeve, rolling member will not be subjected to displacement, and ensure to correspond between rolling member and the second positioning port.

Further, the diameter of second positioning port is less than the diameter of the rolling member；Ensure that rolling member can be opposite First, second positioning port rolls, but not by being dropped out on the second positioning port.

Further, there is spacing between the first positioning sleeve inner wall and the workpiece ejection piece outer wall；Ensure first Positioning sleeve will not conform to workpiece ejection piece outer wall completely, and good location is realized to rolling member.

Further, operating cavity is equipped in the lower die, being equipped with part in the operating cavity penetrates to the injection molding cavity Anti-falling piece, the lower die holder are equipped with and the matched anti-delinking part of the anti-falling piece；The lower die is equipped with and the anti-falling piece phase Coordinate two groups of provisions for disengagement for releasing the cooperation between the anti-falling piece and anti-delinking part, two groups of provisions for disengagement are under described The center line of mould is symmetrical arranged；Realize that the anticreep between lower die holder and injection molding cavity coordinates by the cooperation of anti-falling piece and anti-delinking part, from And the outer diameter of lower die holder may be configured as the internal diameter for being slightly less than injection molding cavity, to be completely in stuck state between the two, make The dismounting for obtaining lower die holder relative injection chamber is more convenient；And the setting provided with attaching/detaching apparatus, it can control anti-falling piece and anti-delinking part Between by grafting anticreep state rapid translating to be detached from state, consequently facilitating lower die holder can be quickly by taking in injection molding cavity Go out, without agitating lower die holder by force, lower die holder is hardly damaged.

Further, the provision for disengagement includes one end and the matched lever piece of the anti-falling piece, another with the lever piece The matched casting die in one end, act on reset components on the anti-falling piece and with the matched driving part of the casting die, it is described Casting die outer end portion extend out to the lower die side wall to be matched with the driving part；Provided with lever piece, so as to use Lever principle drives anti-falling piece action, easily anti-falling piece can be driven to move without excessive to act on the active force on casting die Dynamic, simple operation is laborsaving.

In conclusion the present invention has the following advantages：Lower die holder is convenient for disassembly and assembly, and without agitating lower die holder, lower die holder is not Fragile, service life is long；Workpiece can be detached from lower die holder in discharging under the jacking of workpiece ejection piece, and demoulding is quick.

Description of the drawings

Fig. 1 is the structural diagram of the present invention.

Fig. 2 is the enlarged drawing at B in Fig. 1.

Fig. 3 is the structural schematic diagram of workpiece ejection piece in the present invention.

Fig. 4 is the enlarged drawing at B in Fig. 3.

Specific implementation mode

In order to make those skilled in the art be better understood from the present invention program, below in conjunction in the embodiment of the present invention Attached drawing, technical solution in the embodiment of the present invention carry out clear, complete description.

As shown in Figs 1-4, a kind of injection molding device facilitating feeding, including lower die 1, the upper mold 2 above lower die, Demoulding column 3, the upper die holder 4 in upper mold, injection channel 5, the injection molding cavity 6 in lower die between upper die and lower die And dismountable lower die holder 7 in injection molding cavity；4 top of the upper die holder be set to a connecting pole, the connecting pole with it is described on Mould is spirally connected, so that upper die holder is removable with respect to upper mold；Also is provided with cavity on the lower die holder, the internal structure of the cavity with it is upper The external structure of die holder is identical, by the cooperation of upper and lower mould, realizes injection molding；It is arranged in upper mold in the injection channel, A channel also is provided on the upper die holder, when upper die holder is connected with upper mold, the top in the channel is connected to injection channel, lower part The lower part of lower die holder is extended to, it is close to each other to work as upper and lower mould so that upper die holder enters in lower die holder, and in upper and lower die holder Between there is the gap of corresponding thickness of workpiece after, molten plastic is injected into the gap by injection channel；Further, described It is respectively equipped with an operating cavity 11 on the left and right sides of lower die, anti-falling piece 12 is respectively equipped in two operating cavities, the anti-falling piece 12 is by gold Category is made, and anti-falling piece in the initial state, will have part to be pierced by outward by the side wall of injection molding cavity, penetrate to injection molding cavity；It is described The left and right sidewall of lower die holder 1 be equipped with the matched anti-delinking part 13 of the anti-falling piece, the anti-delinking part 13 be set on lower die holder side wall On open slot, two anti-falling piece can respectively penetrate to corresponding open slot, realize the limit to lower die holder.

In order to facilitate take out be molded after workpiece, we in the lower die 1 be provided with workpiece ejection piece 101 and with the work The matched actuator 102 of part ejection piece, the actuator are the cylinder being directly commercially available on the market, the workpiece ejection piece It is made of metal, which includes the body of rod 103 and be connected in the arc panel 104 on body of rod top, the radian of the arc panel It is identical as the cavity bottom radian in lower die holder；The lower die holder 7 is equipped with the opening stretched out for the arc panel, the shape of the opening Shape and size are identical as arc panel.

In order to reduce workpiece ejection piece 101 when the relatively described opening carries out expanding-contracting action, the frictional force between opening, We are provided with rolling member 201 and the positioning device for being positioned to the rolling member on workpiece ejection piece 101；Specifically , which includes the first positioning sleeve 202 and the second positioning sleeve 203 made of metal, which is set in Outside workpiece ejection piece 101, second positioning sleeve 203 is set in outside the first positioning sleeve 202；First positioning sleeve, 202 inner wall There is spacing between 101 outer wall of workpiece ejection piece, between 203 inner wall of 202 outer wall of the first positioning sleeve and the second positioning sleeve With gap；First positioning sleeve is equipped with upper along its length evenly spaced be equipped with and the matched circle of the rolling member First positioning port 204 of shape, it is upper along its length on the second positioning sleeve evenly spaced to be equipped with and the matched circle of rolling member The second positioning port 205;Preferably, the diameter of first positioning port 204 is more than the diameter of the rolling member 201;Described The diameter of two positioning ports 205 is less than the diameter of the rolling member 201.

Preferably, a circle sealing ring 105 is arranged on the arc panel, it can be to arc panel and opening by the sealing ring Between gap closed；Arc panel can increase the contact area between jacking part and workpiece, be more easy to workpiece being lifted off lower die holder, And workpiece is not in the excessive situation of local pressure, is hardly damaged；Sealing ring can realize excellent sealing with opening, to avoid Hot modeling liquid in the gap between opening and sealing ring by revealing downwards in injection moulding process.

Lower die holder is dismounted for convenience, we are provided in the lower die 1 and are matched with the anti-falling piece 12 Two groups of provisions for disengagement for releasing the cooperation between the anti-falling piece and anti-delinking part 13, and two groups of provisions for disengagement are under described The center line of mould 1 is symmetrical arranged, and then two anti-falling pieces respectively correspond to an attaching/detaching apparatus；Specifically, the provision for disengagement includes lever piece 81, casting die 82, reset components 83 and driving part, the lever piece 81 are a metallic rod, and support seat, the thick stick are equipped in operating cavity The middle part of rod piece 81 and the support seat hinge；81 one end of lever piece is connected with the anti-falling piece, other end casting die 82 with it is described Casting die is connected；The reset components 83 are the stainless steel shrapnel for the multiple wavy shaped configurations setting being spaced apart, these stainless steels The equal one end of shrapnel is connected with operation cavity wall, and the other end is connected with one end that lever piece is connected with anti-falling piece, so that resetting The active force of component 83 can be acted on to anti-falling piece；The sound construction of stainless steel shrapnel, and return action power is big, to anti- When de- part coordinates with anti-delinking part, stainless steel shrapnel can act on larger pressure on anti-falling piece so that anti-falling piece and anti-delinking part Between cooperation stablize, lower die holder firm position.

In other embodiment, the reset components 83 may be configured as the multiple compression springs being spaced apart, these compression springs are uniform End is connected with operation cavity wall, and the other end is connected with one end that lever piece is connected with anti-falling piece；When original state, the casting die 82 Outer end extend out to 1 side wall of the lower die to be matched with the driving part, and the driving part includes being set to the lower die side The interconnecting piece 84 of wall and middle part are articulated with the spanner 85 on the interconnecting piece；The spanner 85, which has, pulls end 851 and driven end 852, This pulls end 851 and driven end 852 is located on two side positions of the interconnecting piece 84；Further, the driven end 852 Be equipped with card division 853, which be inside being fixed on driven end be hollow setting cutting ferrule, the cutting ferrule inner wall directly to Outer extension is formed with a circle flange, and the casting die outer end is penetrated to the cutting ferrule, and a ring slot is set on the lateral wall of outer end, when When casting die outer end is penetrated to cutting ferrule, flange can just be penetrated to annular groove, realize that the anticreep between spanner and casting die coordinates.

Specifically, when pull it is described pull end 851 when, the driven end 852 drives the casting die 82 to close to injection molding cavity 6 Direction movement, lever piece drives the anti-falling piece 12 and 82 counteragent of the casting die, and then anti-falling piece retraction is to operating cavity It is interior, so release with the cooperation of anti-delinking part 13, at this time lower die holder can relative injection chamber dismantled；It can be driven by pulling spanner Dynamic pressure part moves, and is moved to control anti-falling piece, pulls the case where operation of spanner is compared to direct pressing casting die For, need the power smaller applied, operation more laborsaving；And pulling to pull downwards due to spanner, it operates smoothly, Neng Goushi Add larger power, while comfort and laborsaving sense can be promoted.

Preferably, the lower die 1 is equipped with for jacking up the jacking component 9 of the lower die holder upwards, the casting die to When close to injection molding cavity direction movement, jacking operation can occur under the driving of casting die for the jacking component 9；Pass through jacking portion The setting of part so that lower die holder can jacking component jacking under directly by injection molding cavity in stretch out, when to replace without pair Lower die holder carries out agitating lower die holder, you can directly lower die holder taken, it is easy to operate, and it is time saving and energy saving, and lower die holder will not It should be pressure to agitate and damage, service life is long.

Specifically, the jacking component 9 includes the jacking part 91 being set to below the injection molding cavity, is matched with the jacking part Driving member 92 and with the matched impeller of the driving member 93；The jacking part is metallic rod body, and the driving member is a gold medal Belong to bar, a protrusion is equipped in the operating cavity, driving member middle part and the protrusion are hinged, so that driving member becomes lever；Institute It states 92 one end of driving member to match with jacking part 91, the other end is matched with impeller 93；The impeller 93 can be in the drive of casting die The driving member 92 is pushed down under dynamic, driving member 92 can be driven jacking part 91 and move up jack-up lower die holder；The impeller can be The driving member is pushed down under the driving of casting die, driving member can be driven jacking part and move up jack-up lower die holder；When casting die acts Impeller movement can be directly driven, realizes the jacking operation of jacking component, and then when pulling spanner, realization anti-falling piece can be synchronized It with the disengaging of anti-delinking part, while realizing that jacking component operates the jacking of lower die holder, releasing is realized respectively without separate operations The operation of anticreep and jacking, operation are more easy to be laborsaving；Realize that the jacking to jacking component operates it is not necessary that actuator is in addition arranged, Parts are few, and failure rate is low；And the driving principle between impeller and jacking part is also lever principle, to which push piece is without effect The prodigious power on driving member, you can realize the fast servo of jacking part, and jacking dynamics is also larger, is not in that can not jack up The case where lower die holder；Specifically, the impeller 93 is stainless steel plate, and has the portion 931 that arches upward on the impeller 93, this arches upward Portion 931 is directly bent to form by impeller middle and upper part position；Since stainless steel plate has certain deformability, work as casting die Interior shifting presses when arching upward portion, and the portion of arching upward will be driven plain, and to the length of push piece, pushes down on one end of driving member, is driven The other end of part can be upturned so that jacking part moves up.

Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment should all belong to the scope of protection of the invention.

Claims

1. a kind of injection molding device facilitating feeding, including lower die（1）, upper mold above lower die（2）, be set to upper mold and Demoulding column between lower die（3）, upper die holder in upper mold（4）, injection channel（5）, injection molding cavity in lower die（6）And Dismountable lower die holder in injection molding cavity（7）；The lower die（1）It is equipped with workpiece ejection piece（101）With with the workpiece top Go out the matched actuator of part（102）, the lower die holder（7）It is equipped with the opening stretched out for the workpiece ejection piece；Its feature exists In：The workpiece ejection piece（101）It is equipped with for reducing the workpiece ejection piece when the relatively described opening carries out expanding-contracting action （101）The rolling member of frictional force between opening（201）With the positioning device for being positioned to the rolling member.

2. a kind of injection molding device facilitating feeding according to claim 1, it is characterised in that：The positioning device packet It includes and is sheathed on the workpiece ejection piece（101）The first outer positioning sleeve（202）With the second positioning sleeve（203）；First positioning It puts on and is equipped with and matched first positioning port of the rolling member（204）, the second positioning sleeve is equipped with matched with rolling member Second positioning port（205）.

3. a kind of injection molding device facilitating feeding according to claim 2, it is characterised in that：First positioning port （204）Diameter be equal to or more than the rolling member（201）Diameter.

4. a kind of injection molding device facilitating feeding according to claim 2, it is characterised in that：Second positioning port （205）Diameter be less than the rolling member（201）Diameter.

5. a kind of injection molding device facilitating feeding according to claim 2, it is characterised in that：First positioning sleeve （202）Inner wall and the workpiece ejection piece（101）There is spacing between outer wall.

6. a kind of injection molding device facilitating feeding according to claim 1, it is characterised in that：The lower die is equipped with Anti-falling piece（12）, the lower die holder（1）It is equipped with and the matched anti-delinking part of the anti-falling piece（13）；The lower die（1）It is equipped with With the anti-falling piece（12）It matches for releasing the anti-falling piece and anti-delinking part（13）Between cooperation two groups of provisions for disengagement.

7. a kind of injection molding device facilitating feeding according to claim 6, it is characterised in that：The provision for disengagement packet Include one end and the matched lever piece of the anti-falling piece（81）And the matched casting die of the lever piece other end（82）, act on Reset components on the anti-falling piece（83）And with the matched driving part of the casting die, the casting die（82）Outer end portion is stretched out To the lower die（1）Side wall with the driving part to match.