CN212579117U

CN212579117U - Die structure of rotary valve with adjustable feeding direction

Info

Publication number: CN212579117U
Application number: CN202021262726.XU
Authority: CN
Inventors: 吕纪坤; 丁飞
Original assignee: Changzhou Jiuding Automobile Co ltd
Current assignee: Changzhou Jiuding Automobile Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-02-23
Anticipated expiration: 2030-07-01

Abstract

The utility model relates to a mould structure of rotary valve with adjustable direction of feed relates to the technical field of mould, and it includes mould and bed die, be equipped with the sprue bush in the last mould, be equipped with the sprue in the sprue bush, go up the mould with form a plurality of die cavities between the bed die, the bed die orientation go up the mould and be equipped with the mainstream chamber, it is a plurality of the die cavity respectively through the subchannel with mainstream chamber intercommunication, the mainstream intracavity rotates and is connected with the rotary valve, seted up in the rotary valve with the feeding chamber of sprue intercommunication, be equipped with on the lateral wall in feeding chamber with the feed chute of the tip looks adaptation of subchannel. The utility model provides a quantity and the order of the die cavity of the uncontrollable pouring when pouring, the problem of extravagant material easily has that the direction of feed is steerable, can only process the part that needs, saves into manufacturing cost's effect.

Description

Die structure of rotary valve with adjustable feeding direction

Technical Field

The utility model belongs to the technical field of the technique of mould and specifically relates to a mould structure of rotary valve with adjustable feeding direction is related to.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, 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 processing of the appearance of an article is realized mainly through the change of the physical state of a formed material.

The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

Chinese patent publication No. CN109531934A discloses an injection mold, which includes an upper mold, a lower mold, and a main runner, wherein a cavity is formed between the upper mold and the lower mold, the main runner is communicated with the cavity through a glue inlet, the injection mold further includes a cutting ejector pin and a hydraulic drive assembly, and the cutting ejector pin is configured to cut off an injection molding material at the glue inlet; the hydraulic driving assembly is embedded in the injection mold and is configured to drive the cutting thimble to move towards a direction close to or far away from the glue inlet.

When a plurality of parts need to be produced simultaneously, in order to save the cost, often can open a plurality of die cavities on the mould, pour a plurality of parts on same mould, but during its pouring, because of the sprue is direct to communicate with all die cavities, can all die cavities all pour the completion when pouring, nevertheless do not need to process whole parts again sometimes, unnecessary material will be wasted to unnecessary part, has improved manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a mould structure of rotary valve with adjustable direction of feed, it has that direction of feed is steerable, can only process the part that needs, saves into manufacturing cost's effect.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a mould structure of rotary valve with adjustable direction of feed, includes mould and bed die, be equipped with the runner cover in going up the mould, be equipped with the sprue in the runner cover, go up the mould with form a plurality of die cavities between the bed die, the bed die orientation go up the mould and be equipped with the mainstream chamber, it is a plurality of the die cavity respectively through the subchannel with mainstream chamber intercommunication, the mainstream intracavity rotates and is connected with the rotary valve, seted up in the rotary valve with the feeding chamber of sprue intercommunication, be equipped with on the lateral wall of feeding chamber with the feed chute of the tip looks adaptation of subchannel.

By adopting the technical scheme, when one or more parts need to be poured, the rotary valve is rotated to enable the corresponding number of the feeding grooves to be communicated with the corresponding sub-runners, then the materials are poured into the main runner, the materials entering the main runner enter the corresponding sub-runners through the feeding cavities and finally enter the corresponding cavities, and the pouring of the parts is completed; through the setting of rotary valve and feed chute for the feeding direction is steerable, can only process corresponding part, saves manufacturing cost.

The present invention may be further configured in a preferred embodiment as: the quantity of feed chute is three, including a single logical silo and two bi-pass silos, the quantity of die cavity is two, two the relative position and two of bi-pass silo the relative position of subchannel corresponds each other, single logical silo with arbitrary during the subchannel intercommunication, two the bi-pass silo all with arbitrary the subchannel intercommunication.

By adopting the technical scheme, the rotary valve is rotated to enable the single-channel material groove to be respectively and independently communicated with the sub-channels corresponding to the two cavities, so that the two cavities are independently poured; the rotary valve is rotated to enable the two bi-pass material tanks to be communicated with the two sub-runners simultaneously, and two cavities are poured simultaneously.

The present invention may be further configured in a preferred embodiment as: the number of the feeding grooves is 1.

By adopting the technical scheme, the sequential independent pouring can be realized for any number of cavities.

The present invention may be further configured in a preferred embodiment as: the projection shape of the feeding cavity along the axial direction of the rotary valve is a regular hexagon.

Through adopting above-mentioned technical scheme, be convenient for when last mould and bed die part, rotate the rotary valve through hexagonal spanner, make the feed chute and the subchannel intercommunication that corresponds, convenient and fast.

The present invention may be further configured in a preferred embodiment as: the runner cover is towards the terminal surface of bed die with the last mould is close to the side parallel and level of bed die, the rotary valve is towards the terminal surface of last mould with the bed die is close to the terminal surface parallel and level of last mould, the rotary valve towards set up on the terminal surface of last mould do not with the clearance hole of runner cover contact.

Through adopting above-mentioned technical scheme, reduce the pressure that the sprue overlaps and act on the rotary valve, lead to the installation of rotary valve no longer reliable possibility.

The present invention may be further configured in a preferred embodiment as: the bed die is kept away from the one end of going up the mould still is equipped with spacing subassembly, spacing subassembly includes the gag lever post and returns the piece with pressing, the gag lever post install in the bed die, set up the confession in the gag lever post press back the piece orientation the gliding spacing groove of rotary valve, press back the piece with be equipped with compression spring between the tank bottom of spacing groove, the rotary valve orientation be equipped with the confession on pressing back the terminal surface of piece press back the hole of pressing that a card goes into, press back the piece with press back hole looks adaptation, press back the hole and follow the circumference of rotary valve is equipped with a plurality ofly, and with the tip one-to-one of subchannel.

By adopting the technical scheme, when the rotary valve rotates, the press-back piece is clamped into the corresponding press-back pit, the rotary valve is fixed at the corresponding position under the action of the elastic force of the compression spring, and the press-back piece can be separated from the press-back pit only by large force; the rotary valve is fixed in the position of the corresponding press-back pit under the general state, and the press-back piece can be separated from the press-back pit under the action of the hexagonal wrench, so that the feeding groove is adjusted to be communicated with different sub-channels.

The present invention may be further configured in a preferred embodiment as: the limiting part is a sphere.

Through adopting above-mentioned technical scheme, the locating part is the spheroid, when hexagonal spanner is pulled, makes to press back the piece and breaks away from more easily and presses back the hole, the regulation of the rotary valve of being convenient for.

The present invention may be further configured in a preferred embodiment as: be equipped with the indent in the bed die, the indent orientation the one end of going up the mould with mainstream chamber intercommunication, there is the clamp plate through bolted connection in the indent, the rotary valve is kept away from the one end of going up the mould with the clamp plate rotates to be connected, gag lever post fixed connection in the clamp plate.

Through adopting above-mentioned technical scheme, install the rotary valve in the mainstream intracavity earlier, place the clamp plate in the indent again, then fix the clamp plate through the bolt, install the gag lever post in the clamp plate at last, the setting of clamp plate is convenient for install and remove of rotary valve.

The present invention may be further configured in a preferred embodiment as: the rotary valve is provided with a limiting rod which is in threaded connection with the pressing plate.

Through adopting above-mentioned technical scheme, gag lever post and clamp plate threaded connection, the installing and removing of the gag lever post of being convenient for has guaranteed the joint strength of gag lever post simultaneously.

The present invention may be further configured in a preferred embodiment as: and one end of the limiting rod, which faces the rotary valve, is provided with a chamfer.

By adopting the technical scheme, the chamfer is convenient for the limiting rod to be inserted into the pressing plate, and the mounting efficiency of the limiting rod is convenient to improve.

1. Through the arrangement of the rotary valve and the feeding groove, the feeding direction of the die can be controlled, only corresponding parts can be processed, and the production cost is saved;

2. through the setting of locating part, pressure back spare, compression spring and pressure back hole, the rotary valve of being convenient for rotates to operating position, and can reduce the rotary valve when the rotary valve during operation and rotate and influence the possibility of pouring quality.

Drawings

Fig. 1 is a schematic structural view showing the whole of embodiment 1.

Fig. 2 is a schematic structural diagram of the mold cavity and the runner, in which the upper mold is removed in embodiment 1.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of the die plate in embodiment 1, which is removed to abut against the lower die, and is used for embodying the limiting assembly and the pressing plate.

Fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Fig. 6 is an exploded view of the stopper groove according to example 1.

In the figure, 1, an upper die; 11. a sprue bush; 121. a main flow channel; 2. a lower die; 21. a cavity; 211. a shunt channel; 22. a main flow chamber; 23. rotating the valve; 231. a feed cavity; 232. a feed chute; 2321. a single-channel trough; 2322. a double-channel trough; 233. avoiding a void; 234. pressing back to the pit; 24. a limiting component; 241. a limiting rod; 2411. chamfering; 242. a limiting groove; 2421. a compression spring; 243. pressing back the piece; 25. pressing a groove; 251. pressing a plate; 3. and (5) template.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

referring to fig. 1 and, for the utility model discloses a mold structure of rotary valve with adjustable direction of feed, including last mould 1 and bed die 2, install runner cover 11 in going up mould 1, seted up sprue 121 in runner cover 11. The opposite sides of the upper die 1 and the lower die 2 are respectively pressed with a template 3, which is convenient for the die parting and die assembly of the upper die 1 and the lower die 2.

Referring to fig. 2 and 3, two cavities 21 (or two sets of cavities 21) are formed between the upper mold 1 and the lower mold 2, the lower mold 2 is provided with a main flow cavity 22 facing the upper mold 1, the two cavities 21 are respectively communicated with the main flow cavity 22 through the branch passages 211, the main flow cavity 22 is rotatably connected with a rotary valve 23, the rotary valve 23 is internally provided with a feeding cavity 231 communicated with the main flow passage 121, the side wall of the feeding cavity 231 is provided with a feeding groove 232 matched with the end part of the branch passages 211, and the number of the feeding grooves 232 is three along the circumferential direction of the rotary valve 23. In practical application, the number of the cavities 21 and the feeding grooves 232 can be multiple, and can be determined according to different pouring effects and sequences.

Referring to fig. 3, the three feeding grooves 232 include a single-pass groove 2321 and two double-pass grooves 2322, the relative positions of the two double-pass grooves 2322 correspond to the relative positions of the corresponding sub-channels 211 of the two sub-channels 211, respectively, and when the single-pass groove 2321 is communicated with any sub-channel 211, the two double-pass grooves 2322 are not communicated with any sub-channel 211. The independent pouring of the two cavities 21 and the simultaneous pouring of the two cavities 21 are realized.

The axial projection shape of feeding chamber 231 along rotary valve 23 is regular hexagon, and when being convenient for go up mould 1 and bed die 2 separation, operating personnel used the hexagonal spanner to rotate rotary valve 23. When the upper die 1 and the lower die 2 are assembled, the opposite surfaces of the sprue bush 11 and the rotary valve 23 are flush with the end surfaces of the upper die 1 and the lower die 2, but the rotary valve 23 faces the end surface of the upper die 1 and is provided with the clearance hole 233, so that the sprue bush 11 is not in contact with the rotary valve 23, and the possibility that the pressure on the sprue bush 11 acts on the rotary valve 23 is reduced.

Referring to fig. 4 and 5, a pressure groove 25 is formed in one end of the lower mold 2 away from the upper mold 1, the pressure groove 25 is communicated with the main flow cavity 22, a pressure plate 251 is placed in the pressure groove 25, and the pressure plate 251 is fixedly connected with the pressure groove 25 through a bolt. The end of the rotary valve 23 remote from the upper mold 1 is rotatably connected to the pressure plate 251 but does not pass through the pressure plate 251. The lower die 2 is further provided with a limiting component 24 at one end away from the upper die 1, the limiting component 24 includes a limiting rod 241 and a press-back member 243, the limiting rod 241 is connected to the pressing plate 251 in the side wall away from the rotary valve 23 through a thread, a limiting groove 242 (refer to fig. 6) is formed in the limiting rod 241, the press-back member 243 is connected to the limiting groove 242 in a sliding manner, and a compression spring 2421 is abutted between the press-back member 243 and the groove bottom of the limiting groove 242. The rotary valve 23 is provided with a press-back pit 234 for the press-back member 243 to be clamped on the end surface of the press-back member 243, the press-back member 243 is matched with the press-back pit 234, and the press-back pits 234 are provided in a plurality along the circumferential direction of the rotary valve 23 and are in one-to-one correspondence with the end parts of the branch runners 211. The press-back member 243 may be a sphere or a truncated cone, and in this embodiment, the press-back member 243 is a sphere. In order to facilitate the rotation of the limiting rod 241 into the pressing plate 251, a chamfer 2411 is formed at one end of the limiting rod 241 facing the rotary valve 23.

The implementation process of the embodiment is as follows: when one of the cavities 21 needs to be poured, the rotary valve 23 is rotated to align the single-pass trough 2321 with the corresponding branch runner 211 of the cavity 21, and at this time, the press-back member 243 is clamped in the corresponding press-back pit 234, so that the rotary valve 23 cannot be easily rotated, and then the upper mold 1 and the lower mold 2 are closed to perform pouring. When two cavities 21 need to be poured simultaneously, two double-channel material troughs 2322 are aligned with two branch runners 211 respectively, and then the upper die 1 and the lower die 2 are closed for pouring.

Example 2:

the utility model discloses still disclose the mould structure of the rotary valve with adjustable direction of feed, with embodiment 1's difference lies in, the quantity of feed chute 232 is 1, and the quantity of die cavity 21 is a plurality of, can realize a plurality of die cavity 21's independent pouring.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A mold structure with a rotary valve capable of adjusting a feeding direction comprises an upper mold (1) and a lower mold (2), wherein a sprue bush (11) is arranged in the upper mold (1), a main flow channel (121) is arranged in the sprue bush (11), and a plurality of cavities (21) are formed between the upper mold (1) and the lower mold (2), and the mold structure is characterized in that: lower mould (2) orientation go up mould (1) and be equipped with mainstream chamber (22), it is a plurality of die cavity (21) respectively through subchannel (211) with mainstream chamber (22) intercommunication, mainstream chamber (22) internal rotation is connected with rotary valve (23), seted up in rotary valve (23) with feeding chamber (231) of mainstream way (121) intercommunication, be equipped with on the lateral wall of feeding chamber (231) with feed chute (232) of the tip looks adaptation of subchannel (211), feed chute (232) are followed the circumference of rotary valve (23) is equipped with a plurality ofly.

2. A mold structure of a rotary valve with adjustable feeding direction according to claim 1, wherein: the quantity of feed chute (232) is three, including a single logical silo (2321) and two bi-pass silos (2322), the quantity of die cavity (21) is two, two the relative position and two of bi-pass silo (2322) the correspondence of subchannel (211) the relative position of subchannel (211) corresponds each other, single logical silo (2321) and arbitrary during subchannel (211) intercommunication, two bi-pass silo (2322) all with arbitrary subchannel (211) intercommunication.

3. A mold structure of a rotary valve with adjustable feeding direction according to claim 1, wherein: the number of the feeding grooves (232) is 1.

4. A mold structure of a rotary valve with adjustable feeding direction according to claim 1, wherein: the projection shape of the feeding cavity (231) along the axial direction of the rotary valve (23) is a regular hexagon.

5. A mold structure of a rotary valve with adjustable feeding direction according to claim 1, wherein: the sprue bush (11) faces towards the end face of the lower die (2) and the upper die (1) is close to the side parallel and level of the lower die (2), the rotary valve (23) faces towards the end face of the upper die (1) and the end face parallel and level of the lower die (2) is close to the upper die (1), and the rotary valve (23) faces towards the end face of the upper die (1) and is provided with a clearance hole (233) which is not in contact with the sprue bush (11).

6. A mold structure of a rotary valve with adjustable feeding direction according to claim 1, wherein: keep away from lower mould (2) the one end of going up mould (1) still is equipped with spacing subassembly (24), spacing subassembly (24) are including gag lever post (241) and press back (243), gag lever post (241) install in lower mould (2), set up the confession in gag lever post (241) press back (243) orientation rotary valve (23) gliding spacing groove (242), press back (243) with be equipped with compression spring (2421) between the tank bottom of spacing groove (242), rotary valve (23) orientation be equipped with the confession on the terminal surface of pressing back (243) press back hole (234) that returns piece (243) card and go into, press back piece (243) with press back hole (234) looks adaptation, press back hole (234) along the circumference of rotary valve (23) is equipped with a plurality ofly, and the tip one-to-one of subchannel (211).

7. A mold structure of a rotary valve with adjustable feeding direction according to claim 6, wherein: the press back member (243) is a sphere.

8. A mold structure of a rotary valve with adjustable feeding direction according to claim 6, wherein: a pressure groove (25) is formed in the lower die (2), one end, facing the upper die (1), of the pressure groove (25) is communicated with the main flow cavity (22), a pressure plate (251) is connected to the interior of the pressure groove (25) through a bolt, one end, far away from the upper die (1), of the rotary valve (23) is rotatably connected with the pressure plate (251), and the limiting rod (241) is fixedly connected to the interior of the pressure plate (251).

9. A mold structure of a rotary valve with adjustable feeding direction according to claim 8, wherein: the limiting rod (241) is in threaded connection with the pressing plate (251).

10. A mold structure of a rotary valve with adjustable feeding direction according to claim 9, wherein: and a chamfer (2411) is arranged at one end of the limiting rod (241) facing the rotary valve (23).