CN217704505U

CN217704505U - Multi-cavity injection mold capable of controlling on-off of runners

Info

Publication number: CN217704505U
Application number: CN202221802301.2U
Authority: CN
Inventors: 王三飞; 刘学龙; 王二飞
Original assignee: Jiaxun Plastic Rubber Die Guan Co ltd
Current assignee: Jiaxun Plastic Rubber Die Guan Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-01
Anticipated expiration: 2032-07-13

Abstract

The utility model discloses a many die cavities injection mold of steerable subchannel break-make, including last mould and bed die, go up the top of mould cooperation installation at the bed die, it is provided with the multiunit die cavity to go up in the middle of mould and the bed die, the top of multiunit die cavity all runs through and is provided with the subchannel, still include subchannel control assembly, subchannel control assembly includes the filling tube, the flow distribution box, multiunit reposition of redundant personnel mouth, multiunit plug and multiunit lock nut, the bottom of flow distribution box is hugged closely with the top of last mould, the inside branch flow chamber that is provided with of flow distribution box, the top middle part in branch flow chamber communicates with the output of filling tube, be provided with the solenoid valve on the filling tube, the bottom in branch flow chamber communicates with the top of multicomponent flow mouth respectively, multicomponent flow mouth respectively with multicomponent runner sliding connection, the top in branch flow chamber is run through and is provided with the multiunit screw hole. The mould can artificially and independently control the on-off of each runner so as to meet temporary production, so that material waste is prevented, the production efficiency is improved, and the practicability is high.

Description

Multi-cavity injection mold capable of controlling on-off of runners

Technical Field

The utility model relates to an injection mold technical field especially relates to a many die cavities injection mold of steerable subchannel break-make.

Background

A mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The multi-cavity injection mold is an injection mold provided with a plurality of cavities, can obtain a plurality of groups of products through one-time mold closing, and is widely used in the field of injection molding production. When the multi-cavity injection mold is used, an upper group of molds and a lower group of molds are firstly closed, then melted materials are extruded into a plurality of groups of cavities through a runner, and then the molds are opened to obtain a plurality of groups of products.

The existing multi-cavity injection mold is found in use, a runner of the multi-cavity injection mold is different in abrasion or molding due to various reasons, when a certain cavity has quality problems, the whole set of mold can only be stopped and polished, the production efficiency is influenced, if continuous production is carried out, material waste can be caused, and the quality qualified rate is influenced, so that the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a many die cavities injection mold of steerable subchannel break-make, this mould can be for the break-make of each subchannel of independent control in order to satisfy interim production to prevent that the material is extravagant, improve production efficiency, the practicality is strong.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a multi-cavity injection mold capable of controlling the on-off of a runner comprises an upper mold, a lower mold, a runner control assembly and a runner control assembly, wherein the upper mold is arranged at the top end of the lower mold in a matching way, a plurality of groups of cavities are arranged between the upper mold and the lower mold, the top ends of the plurality of groups of cavities are provided with runners in a penetrating way,

the runner control assembly includes the filling tube, the flow distribution box, the multiunit branch nozzle, multiunit plug and multiunit lock mother, the bottom of flow distribution box is hugged closely with the top of last mould, the inside branch flow chamber that is provided with of flow distribution box, the top middle part in branch flow chamber communicates with the output of filling tube, be provided with the solenoid valve on the filling tube, the bottom in branch flow chamber communicates with the top of multiunit flow nozzle respectively, the multiunit flow nozzle respectively with multicomponent runner sliding connection, the top in branch flow chamber is run through and is provided with the multiunit screw hole, the multiunit plug respectively with multiunit screw hole threaded connection, the bottom of multiunit plug is hugged closely sealedly with the top of multiunit branch nozzle respectively, the multiunit lock mother respectively with the top threaded connection of multiunit plug, the bottom of multiunit lock mother all hugs closely with the top of flow distribution box.

Preferably, still include support and hydraulic cylinder, the support mounting is in the upside of reposition of redundant personnel case, and hydraulic cylinder's top is connected with the bottom of support, and hydraulic cylinder's output is connected with the top of reposition of redundant personnel case.

Preferably, still include multiunit heat-resisting sealing washer, multiunit flow nozzle's bottom outside all is provided with the seal groove, and multiunit heat-resisting sealing washer cooperates respectively to install in multiunit seal groove, and multiunit heat-resisting sealing washer's the outside is hugged closely with the outside of multiunit runner.

Preferably, the multi-component pipeline system further comprises a plurality of sets of check valves, and the check valves are respectively installed at the top ends of the multi-component pipelines.

Preferably, still include multiunit heating pipe, multiunit heating pipe installs respectively in the front end of reposition of redundant personnel case, rear end, left end and right-hand member.

Preferably, still include two sets of guide bars and two sets of sliders, the bottom of two sets of guide bars is connected with the left and right sides on reposition of redundant personnel case top respectively, and two sets of sliders are installed respectively at hydraulic cylinder's left and right sides both ends, and two sets of guide bars are respectively with two sets of slider sliding connection.

Preferably, the heat-insulating cotton is further included, and the heat-insulating cotton is coated on the top end of the flow dividing box.

Preferably, the plug further comprises a plurality of groups of butterfly-shaped handles which are respectively arranged at the top ends of the plurality of groups of plugs.

The utility model discloses in, when using many die cavities injection mold, loosen all plugs and make diversion cavity and many group flow nozzle switch on during normal production, then open the solenoid valve and pass through the filling tube to the feeding in the flow distribution box, the material that gets into the diversion cavity gets into the flow distribution nozzle through the extrusion, the subchannel is until filling up the die cavity, then close the solenoid valve, carry out the cooling of mould and taking out of product, when individual die cavity can't satisfy the production requirement, screw up corresponding plug until the bottom of plug plugs up the flow distribution nozzle, then screw up the lock nut, at this moment when reinforced, corresponding flow distribution nozzle no longer has the material to get into the subchannel, thereby realize the independent control break-make of every subchannel; through the device, the break-make of each subchannel can be artificially controlled alone in order to satisfy interim production to prevent the material extravagant, improve production efficiency, thereby strengthened the practicality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a left side view structure diagram of the material separating box of the present invention;

FIG. 3 is a schematic top view of the material separating box of the present invention;

FIG. 4 is a schematic view of the structure of the flow distribution nozzle of the present invention;

in the drawings, the reference numbers: 1. an upper die; 2. a lower die; 3. a cavity; 4. a shunt; 5. a feed tube; 6. a shunt box; 7. a flow divider; 8. plugging with a thread; 9. locking a nut; 11. a shunting cavity; 12. an electromagnetic valve; 13. a one-way valve; 14. a heat-resistant seal ring; 15. a support; 16. a lifting hydraulic cylinder; 17. heating a tube; 18. a guide rod; 19. a slider; 20. heat insulation cotton; 21. butterfly handle.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

the multi-cavity injection mold capable of controlling the on-off of the branch channels comprises an upper mold 1 and a lower mold 2, wherein the upper mold 1 is installed at the top end of the lower mold 2 in a matched mode, a plurality of groups of cavities 3 are arranged between the upper mold 1 and the lower mold 2, the top ends of the groups of cavities 3 are provided with the branch channels 4 in a penetrating mode, the multi-cavity injection mold further comprises a branch channel control assembly, the branch channel control assembly comprises a feed pipe 5, a branch box 6, a multi-component flow nozzle 7, a plurality of groups of screw plugs 8 and a plurality of groups of locking nuts 9, the bottom end of the branch box 6 is tightly attached to the top end of the upper mold 1, a branch cavity 11 is arranged inside the branch box 6, the middle of the top end of the branch cavity 11 is communicated with the output end of the feed pipe 5, an electromagnetic valve 12 is arranged on the feed pipe 5, the bottom end of the branch cavity 11 is respectively communicated with the top end of the multi-component flow nozzle 7, the multi-component flow nozzle 7 is respectively connected with the multi-component flow channel 4 in a sliding mode, a plurality of groups of screw holes 11 are arranged in a penetrating mode, the top end of the branch cavity is tightly attached to the screw plugs 8, the multi-group screw plugs 8 are respectively connected with the multi-group screw holes, the multi-group screw plugs 9, and the top ends of the multi-group screw plugs 9 of the multi-group screw plugs 8 are respectively connected with the multi-group screw plugs 9; when the multi-cavity injection mold is used, all the screw plugs are loosened to enable the shunt cavity and the multi-component flow nozzles to be communicated in normal production, then the electromagnetic valve is opened to feed materials into the shunt box through the feeding pipe, the materials entering the shunt cavity are extruded to enter the shunt nozzles and the shunt channels until the shunt nozzles and the shunt channels are full of the materials, then the electromagnetic valve is closed to cool the mold and take out products, when the individual cavity does not meet production requirements, the corresponding screw plugs are screwed until the bottom ends of the screw plugs block the shunt nozzles, then the lock nuts are screwed, and at the moment, no materials enter the shunt channels any more through the corresponding shunt nozzles during feeding, so that the on-off of each shunt channel is controlled independently; through the device, the break-make of each subchannel can be artificially controlled alone in order to satisfy interim production to prevent the material extravagant, improve production efficiency, thereby strengthened the practicality.

The multi-cavity injection mold further comprises a support 15 and a lifting hydraulic cylinder 16, wherein the support 15 is installed on the upper side of the flow distribution box 6, the top end of the lifting hydraulic cylinder 16 is connected with the bottom end of the support 15, and the output end of the lifting hydraulic cylinder 16 is connected with the top end of the flow distribution box 6; after the reposition of redundant personnel case is accomplished each die cavity injection molding, operation hydraulic cylinder withdrawal, it rises to drive the reposition of redundant personnel case, when needs are moulded plastics, the output of operation hydraulic cylinder again, it descends to drive the reposition of redundant personnel case, with each diverging nozzle slip insert in each subchannel, because the temperature of reposition of redundant personnel case is higher all the time, hug closely the cooling rate that can influence the product with last mould all the time, can separate reposition of redundant personnel case and last mould when needs cooling, improve the cooling rate of product in order to improve production efficiency, thereby the practicality has been strengthened.

The multi-cavity injection mold also comprises a plurality of groups of heat-resistant sealing rings 14, wherein sealing grooves are formed in the outer sides of the bottoms of the multi-component nozzles 7, the plurality of groups of heat-resistant sealing rings 14 are respectively installed in the plurality of groups of sealing grooves in a matched manner, and the outer sides of the plurality of groups of heat-resistant sealing rings 14 are tightly attached to the outer sides of the multi-component flow passages 4; when the flow distribution nozzle is slidably inserted into the flow distribution channel, the heat-resistant sealing ring can play a good sealing role when the flow distribution nozzle performs injection molding into the flow distribution channel, the injection molding material is prevented from leaking to cause material waste, the flow distribution nozzle and the flow distribution channel slide relatively for a long time to generate abrasion easily, after the flow distribution nozzle is produced for a long time, the heat-resistant sealing ring can be directly replaced to ensure the sealing performance, the production cost is reduced, and therefore the practicability is enhanced.

The multi-cavity injection mold also comprises a plurality of groups of check valves 13, wherein the plurality of groups of check valves 13 are respectively arranged at the top ends of the multi-component runners 4; when the diffluent mouth slides and inserts the subchannel, the one-way valve can directly be backed up to the polycomponent mouth of flowing to the subchannel and mould plastics, and when the diffluent mouth rose and breaks away from the subchannel, the die cavity was sealed to the one-way valve self-closing, can improve the leakproofness of die cavity through the device, improved product quality to the practicality has been strengthened.

The multi-cavity injection mold also comprises a plurality of groups of heating pipes 17, wherein the plurality of groups of heating pipes 17 are respectively arranged at the front end, the rear end, the left end and the right end of the flow distribution box 6; the multi-group heating pipes can keep the heat of the injection molding materials in the distribution box in the production process, prevent the materials from coagulating early to influence the production quality or block the distribution nozzles and the distribution channels, and further enhance the practicability.

The multi-cavity injection mold also comprises two groups of guide rods 18 and two groups of slide blocks 19, wherein the bottom ends of the two groups of guide rods 18 are respectively connected with the left side and the right side of the top end of the flow distribution box 6, the two groups of slide blocks 19 are respectively arranged at the left end and the right end of the lifting hydraulic cylinder 16, and the two groups of guide rods 18 are respectively connected with the two groups of slide blocks 19 in a sliding manner; when reposition of redundant personnel case and last mould contact, need very high cooperation precision could let the good entering subchannel of multicomponent flowing nozzle, displacement precision when improvement reposition of redundant personnel case that can be great through the device reciprocates prevents that the precision from not enough damaging the mould when leading to hydraulic cylinder to descend to the practicality has been strengthened.

The multi-cavity injection mold also comprises heat insulation cotton 20, and the heat insulation cotton 20 is coated on the top end of the flow dividing box 6; the heat of reposition of redundant personnel case can be cut off to thermal-insulated cotton in process of production, reduces the heat-conduction between reposition of redundant personnel case and the hydraulic cylinder, improves the sealed life of hydro-cylinder to the practicality has been strengthened.

The multi-cavity injection mold also comprises a plurality of groups of butterfly handles 21, wherein the plurality of groups of butterfly handles 21 are respectively arranged at the top ends of the plurality of groups of screw plugs 8; the plug can be adjusted more conveniently by the aid of the multiple groups of butterfly handles, and therefore practicability is enhanced.

When the multi-component flow nozzle is in work, all the screw plugs 8 are loosened to enable the flow distribution cavity 11 to be communicated with the multi-component flow nozzle 7 during normal production, then the lifting hydraulic cylinder 16 is operated to output, the flow distribution box 6 descends to be tightly attached to the upper die 1, meanwhile, the one-way valve 13 is jacked open by the flow distribution nozzle 7, then the electromagnetic valve 12 is opened to feed materials into the flow distribution box 6 through the feed pipe 5, the materials entering the flow distribution cavity 11 are extruded into the flow distribution nozzle 7 and the flow distribution channel 4 until the die cavity 3 is filled with the materials, then the electromagnetic valve 12 is closed, the lifting hydraulic cylinder 16 is operated to retract to drive the flow distribution box 6 to ascend, at the moment, the heating pipe 17 is opened to conduct heat preservation and heating on the flow distribution box 6, the die cavity 3 is cooled and products are taken out, when the individual die cavity 3 does not meet production requirements, the corresponding screw plugs 8 are screwed up until the flow distribution nozzles 7 at the bottom ends of the screw plugs 8 through the butterfly-shaped handle 21, then the lock nuts 9 are screwed up, at the moment, materials do not enter the flow distribution nozzles 7 any more, and the flow distribution channel 4 are independently controlled to be switched on and switched on or switched off by each flow distribution channel 4.

The above embodiments are merely a plurality of descriptions of the concept and implementation of the present invention, and are not limited thereto.

Claims

1. The utility model provides a many die cavities injection mold of steerable subchannel break-make, includes mould (1) and bed die (2), goes up mould (1) cooperation and installs on the top of bed die (2), goes up and is provided with multiunit die cavity (3) in the middle of mould (1) and bed die (2), and the top of multiunit die cavity (3) all runs through and is provided with subchannel (4), its characterized in that: also comprises a sub-channel control component which is provided with a sub-channel,

the branch runner control assembly comprises a feed pipe (5), a branch box (6), a multi-component spout (7), a plurality of groups of screw plugs (8) and a plurality of groups of locking nuts (9), the bottom end of the branch box (6) is tightly attached to the top end of an upper die (1), a branch cavity (11) is arranged inside the branch box (6), the middle of the top end of the branch cavity (11) is communicated with the output end of the feed pipe (5), an electromagnetic valve (12) is arranged on the feed pipe (5), the bottom end of the branch cavity (11) is respectively communicated with the top end of the multi-component spout (7), the multi-component spout (7) is respectively in sliding connection with the multi-component runner (4), a plurality of groups of threaded holes are arranged on the top end of the branch cavity (11) in a penetrating mode, the plurality of groups of screw plugs (8) are respectively in threaded connection with the plurality of groups of threaded holes, the bottom end of the plurality of groups of screw plugs (8) is respectively sealed with the top end of the multi-component spout (7), the plurality of groups of locking nuts (9) are respectively in threaded connection with the top end of the branch box (6), and the bottom end of the plurality of locking nuts (9) is tightly attached to the branch box (6).

2. The multi-cavity injection mold capable of controlling the on-off of the shunt channels according to claim 1, further comprising a support (15) and a lifting hydraulic cylinder (16), wherein the support (15) is installed on the upper side of the shunt box (6), the top end of the lifting hydraulic cylinder (16) is connected with the bottom end of the support (15), and the output end of the lifting hydraulic cylinder (16) is connected with the top end of the shunt box (6).

3. The multi-cavity injection mold capable of controlling the opening and closing of the branch channels as claimed in claim 1, further comprising a plurality of groups of heat-resistant sealing rings (14), wherein sealing grooves are formed in the outer sides of the bottoms of the multi-component nozzles (7), the plurality of groups of heat-resistant sealing rings (14) are respectively installed in the plurality of groups of sealing grooves in a matching manner, and the outer sides of the plurality of groups of heat-resistant sealing rings (14) are tightly attached to the outer sides of the multi-component branch channels (4).

4. The multi-cavity injection mold capable of controlling the on-off of the branch channels as claimed in claim 1, further comprising a plurality of sets of check valves (13), wherein the plurality of sets of check valves (13) are respectively installed at the top ends of the plurality of sets of branch channels (4).

5. The injection mold with multiple cavities and capable of controlling the on-off of the branch runners as claimed in claim 1 or 4, further comprising multiple groups of heating pipes (17), wherein the multiple groups of heating pipes (17) are respectively installed at the front end, the rear end, the left end and the right end of the branch box (6).

6. The multi-cavity injection mold capable of controlling the opening and closing of the branch channels according to claim 5, further comprising two sets of guide rods (18) and two sets of sliders (19), wherein the bottom ends of the two sets of guide rods (18) are respectively connected with the left side and the right side of the top end of the branch box (6), the two sets of sliders (19) are respectively installed at the left end and the right end of the lifting hydraulic cylinder (16), and the two sets of guide rods (18) are respectively connected with the two sets of sliders (19) in a sliding manner.

7. The multi-cavity injection mold capable of controlling the on-off of the branch channels as claimed in claim 1, further comprising heat insulation cotton (20), wherein the heat insulation cotton (20) is coated on the top end of the branch box (6).

8. The multi-cavity injection mold capable of controlling the opening and closing of the branch channels as claimed in claim 7, further comprising a plurality of sets of butterfly handles (21), wherein the plurality of sets of butterfly handles (21) are respectively installed at the top ends of the plurality of sets of plugs (8).