CN110421809B - Mold cavity core cooling mechanism of micro-foaming deep-cavity injection mold - Google Patents
Mold cavity core cooling mechanism of micro-foaming deep-cavity injection mold Download PDFInfo
- Publication number
- CN110421809B CN110421809B CN201910818196.8A CN201910818196A CN110421809B CN 110421809 B CN110421809 B CN 110421809B CN 201910818196 A CN201910818196 A CN 201910818196A CN 110421809 B CN110421809 B CN 110421809B
- Authority
- CN
- China
- Prior art keywords
- hole
- cavity
- cooling water
- ring
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 42
- 238000005187 foaming Methods 0.000 title claims abstract description 32
- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 230000002265 prevention Effects 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000110 cooling liquid Substances 0.000 description 15
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a mold cavity and core cooling mechanism of a micro-foaming deep cavity injection mold, which is provided with a mold cavity, a base plate and a mold core, wherein a mold cavity upper cooling water inlet channel and a mold cavity side cooling water inlet channel are arranged in the mold cavity, a mold core cooling water inlet channel is arranged in the base plate, and the mold core cooling water inlet channel extends into the mold core, wherein a first pressurizing piece is arranged in each of the mold cavity upper cooling water inlet channel and the mold cavity side cooling water inlet channel, and a second pressurizing piece is arranged in the mold core cooling water inlet channel. The cooling mechanism for the cavity core of the micro-foaming deep-cavity injection mold has the advantages that due to the adoption of the structure, the cooling effect of the cavity and the core is better.
Description
Technical Field
The invention relates to a micro-foaming injection mold, in particular to a cavity core cooling mechanism of a micro-foaming deep-cavity injection mold.
Background
The micro-foaming injection molding process is an innovative precise injection molding technology, breaks through a plurality of limitations of the traditional injection molding, can obviously reduce the weight of a finished piece, shortens the molding period, and greatly improves the buckling deformation and the dimensional stability of the finished piece. The micro-foaming injection molding process has great advantages in producing precision products with high quality requirements.
In a micro-foaming injection mold, the requirement on the cooling of a product is very high, particularly for an injection mold with a deep cavity, if the cooling inside the deep cavity of the product is uneven, the product is easily scrapped, and the yield of the product is low.
Chinese patent cn201721688884.x discloses a mold cavity core cooling mechanism of a micro-foaming deep-cavity injection mold, which comprises an upper compound plate and a lower compound plate, wherein the upper compound plate is provided with a mold cavity insert in a mold cavity, the lower compound plate is provided with a mold foot, an upper ejector plate, a lower ejector plate and an ejector pin, a base plate is arranged on the mold foot, a mold core is arranged on the base plate, and the mold core is provided with a mold core insert.
In the above-mentioned patent, the water pressure in each water route is even, therefore can not accelerate the velocity of flow of rivers to make the device to discount the cooling effect of core and die cavity greatly, in addition, when the water yield in the core cooling water inlet water way reaches a certain amount, can make the cooling liquid backward flow, thereby can not carry out effective cooling to the core.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a cooling mechanism for a cavity core of a micro-foaming deep-cavity injection mold, which solves the problem that the cooling effect of the cooling mechanism for the cavity core of the micro-foaming deep-cavity injection mold provided by the patent document is poor.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a mold cavity and core cooling mechanism of a micro-foaming deep-cavity injection mold is provided with a mold cavity, a base plate and a mold core, wherein a mold cavity upper cooling water inlet channel and a mold cavity side cooling water inlet channel are arranged in the mold cavity, a mold core cooling water inlet channel is arranged in the base plate and extends into the mold core, first pressurizing parts are arranged in the mold cavity upper cooling water inlet channel and the mold cavity side cooling water inlet channel, and a second pressurizing part is arranged in the mold core cooling water inlet channel.
Further, the first pressurizing member includes:
the periphery of the bottom plate is connected with the inner wall of the cooling water inlet channel on the cavity/the cooling water inlet channel at the side of the cavity, and a first taper hole is formed in the bottom plate;
one end of the first connecting column is connected with one end of the bottom plate, the first connecting column is close to the water outlet end of the cooling water inlet channel on the cavity/the cooling water inlet channel on the side of the cavity, a second taper hole is formed in the first connecting column, the second taper hole is communicated with the first taper hole, and the large end of the second taper hole is connected with the small end of the first taper hole;
the small end of the first circular table column is connected with the other end of the first connecting column, and a first through hole is formed in the first circular table column;
one end of the second connecting column is connected with the large end of the first circular table column, a second through hole is formed in the second connecting column, and the second through hole is communicated with the first through hole;
the big end of the second circular table column is connected with the other end of the second connecting column, a third through hole is formed in the second circular table column, and the third through hole is communicated with the second through hole;
the large end of the third circular table column is connected with the small end of the second circular table column, a third conical hole is formed in the third circular table column, the third conical hole is communicated with the third through hole, and the large end of the third conical hole is connected with the water outlet end of the third through hole;
the small end of the fourth circular truncated cone column is connected with the small end of the third circular truncated cone column, a fourth taper hole is formed in the fourth circular truncated cone column, the fourth taper hole is communicated with the third taper hole, and the large end of the fourth taper hole is connected with the small end of the third taper hole;
the large end of the fifth circular truncated cone column is connected with the large end of the fourth circular truncated cone column, a fifth taper hole is formed in the fifth circular truncated cone column, the fifth taper hole is communicated with the third taper hole, and the large end of the fifth taper hole is connected with the small end of the fourth taper hole;
the large end of the sixth circular truncated cone column is connected with the small end of the fifth circular truncated cone column, a sixth taper hole is formed in the sixth circular truncated cone column and communicated with the fifth taper hole, and the large end of the sixth taper hole is connected with the small end of the fifth taper hole.
Furthermore, a first large taper hole is formed after the first taper hole is communicated with the second taper hole, a large through hole is formed after the first through hole, the second through hole and the third through hole are communicated, and a second large taper hole is formed after the third taper hole is communicated with the fourth taper hole.
Further, the second pressurizing member includes:
the periphery of the annular substrate is connected with the inner wall of the core cooling water inlet channel;
the connecting pipe is communicated with the inner hole of the annular substrate and comprises a straight pipe part, a first taper pipe part and a second taper pipe part which are sequentially connected, one end of the straight pipe part is connected with the annular substrate, the other end of the straight pipe part is connected with the small end of the first taper pipe part, and the large end of the first taper pipe part is connected with the large end of the second taper pipe part;
the large end of the conical water outlet pipe is connected with the small end of the second conical pipe part, and one side of the conical water outlet pipe is provided with an opening;
the iron sheet is fixed on one side of the second taper pipe part, one end of the iron sheet is fixed with an elastic sheet, and the opening can be sealed and blocked by the elastic sheet.
Furthermore, the mold core cooling water inlet channel comprises a pair of backflow prevention assemblies, wherein the backflow prevention assemblies are respectively positioned in two side walls of the mold core cooling water inlet channel, and the backflow prevention assemblies are positioned above corners of the mold core cooling water inlet channel.
Still further, the backflow prevention assembly includes:
the top plate of the telescopic piece is in sliding fit with the corresponding large hole in the base plate, and the bottom rod of the telescopic piece is in sliding fit with the small hole in the bottom wall of the large hole;
the spring is arranged between the bottom rod and the bottom wall of the small hole, and one end of the spring is sleeved on the guide shaft on the bottom wall of the small hole;
the driving rod is arranged at the inner end of the top plate, the inner end of the driving rod extends into the corresponding mounting cavity on the base plate, and the driving rod is in sliding fit with the pair of first guide seats on the side wall of the mounting cavity;
the first rack is arranged on one side of the driving rod and is in meshed connection with one side of a gear arranged in the mounting cavity;
the second rack is meshed and connected with the other side of the gear, and the second rack is in sliding fit with a second guide seat positioned on the side wall of the mounting cavity;
the barrier plate is arranged at one end of the second rack through a connecting rod and is in sliding fit with the through groove formed in the side wall of the mounting cavity;
a magnet disposed on an outer end of the blocking plate.
Still further, the backflow prevention assembly further comprises an end cap disposed at an open end of the large bore, the end cap capable of confining the top plate within the large bore.
Furthermore, the backflow prevention assembly further comprises a sealing assembly, the sealing assembly is arranged between the end cover and the base plate, and the sealing assembly is located in the corresponding annular mounting groove in the base plate.
Still further, the seal assembly includes:
a base ring of the support ring is sleeved on the periphery of the end cover, and the outer end of the base ring is connected with an annular plate through a wavy ring;
the sealing ring is provided with an inner ring, the inner ring is sleeved on the periphery of the end cover, the inner end face of the inner ring is in fit connection with the inner wall face of the wavy ring, the periphery of the inner ring is integrally connected with an outer ring, the inner end of the outer ring is provided with a cavity, the side wall of the cavity is provided with an annular cavity, the outer edge of the annular plate is embedded in the annular cavity, the periphery of the outer ring is provided with an annular feeler and an extension ring connected through a bowl-shaped ring, the periphery of the annular feeler abuts against the inner wall of the annular mounting groove, the small end of the bowl-shaped ring is connected with the outer ring, and the large end of the bowl-shaped ring is connected with the extension ring;
the gland is screwed on the periphery of the end cover, and the gland limits the sealing ring in the annular mounting groove.
Furthermore, a plurality of annular grooves are formed in the periphery of the extension ring, annular convex teeth are formed between adjacent annular grooves, and the periphery of each annular convex tooth abuts against the inner wall of the corresponding annular mounting groove.
(III) advantageous effects
The invention has the beneficial effects that:
1. according to the invention, the first pressurizing piece is arranged in the cooling water inlet channel on the cavity and the cooling water inlet channel on the cavity side, and the second pressurizing piece is arranged in the core cooling water inlet channel, so that the water pressure of cooling liquid in the cooling water inlet channel on the cavity, the cooling water inlet channel on the cavity side and the core cooling water inlet channel can be increased, the instantaneous speed of the cooling liquid flowing out from the first pressurizing piece or the second pressurizing piece is increased, the cooling speed of the cavity and the core is accelerated, the cooling time is shortened, and the working efficiency of the cooling device is improved;
2. as the two sides of the core cooling water inlet channel are respectively provided with the backflow prevention assemblies, the backflow of the cooling liquid in the core cooling water inlet channel can be prevented, the cooling efficiency of the core cooling water inlet channel is improved, and the resources are saved.
Drawings
Fig. 1 is a partial structural schematic diagram of the present invention.
Fig. 2 is an enlarged view at I in fig. 1.
Fig. 3 is an enlarged view at H in fig. 1.
Fig. 4 is an enlarged view at M in fig. 1.
Fig. 5 is an enlarged view at G in fig. 4.
Fig. 6 is an enlarged view at K in fig. 4.
Fig. 7 is an enlarged view at J in fig. 6.
In the drawings: the mold cavity 10, the backing plate 20, the large hole 201, the small hole 2011, the guide shaft 20111, the mounting cavity 202, the first guide seat 2021, the gear 2022, the second guide seat 2023, the through groove 2024, the annular mounting groove 203, the third guide seat 204, the mold core 30, the mold cavity upper cooling water inlet channel 40, the mold cavity side cooling water inlet channel 50, the mold core cooling water inlet channel 60, the magnet 70, the end cover 80, the seal assembly 90, the support ring 901, the base ring 9011, the wave ring 9012, the annular plate 9013, the seal ring 902, the inner ring 9021, the outer ring 9022, the cavity 90221, the annular cavity 902211, the annular feeler 9023, the bowl ring 9024, the extension ring 9025, the annular groove 90251, the annular convex tooth 90252, the gland 903, the first pressurizing piece 1, the bottom plate 11, the first conical hole 111, the first connecting column 12, the second conical hole 121, the first circular column 13, the first through hole 131, the second connecting column 14, the second through hole 141, the second circular column 15, the third circular column hole 151, the third circular column 16, The third conical hole 161, the fourth circular truncated cone column 17, the fourth conical hole 171, the fifth circular truncated cone column 18, the fifth conical hole 181, the sixth circular truncated cone column 19, the sixth conical hole 191, the second pressurizing part 2, the annular base plate 21, the straight pipe part 22, the first conical pipe part 23, the second conical pipe part 24, the conical water outlet pipe 25, the opening 251, the iron sheet 26, the elastic sheet 27, the telescopic part 3, the top plate 31, the bottom rod 32, the spring 4, the driving rod 5, the first rack 6, the second rack 7, the blocking plate 8 and the connecting rod 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.
Referring to fig. 1 to 7, the mold cavity and core cooling mechanism of a micro-foaming deep cavity injection mold shown in fig. 1 comprises a mold cavity 10, a base plate 20 and a mold core 30, wherein a mold cavity upper cooling water inlet passage 40 and a mold cavity side cooling water inlet passage 50 are arranged in the mold cavity 10, a mold core cooling water inlet passage 60 is arranged in the base plate 20, and the mold core cooling water inlet passage 60 extends into the mold core 30, wherein a first pressurizing member 1 is arranged in each of the mold cavity upper cooling water inlet passage 40 and the mold cavity side cooling water inlet passage 50, a second pressurizing member 2 is arranged in the mold core cooling water inlet passage 60, so that the water pressure of cooling liquid in the mold cavity upper cooling water inlet passage 40, the mold cavity side cooling water inlet passage 50 and the mold core cooling water inlet passage 60 can be increased, and the instantaneous speed of the cooling liquid flowing out from the first pressurizing member 1 or the second pressurizing member 2 is increased, the cooling speed of the cavity 10 and the core 30 is accelerated, the cooling time is shortened, the working efficiency of the cavity core cooling mechanism of the micro-foaming deep-cavity injection mold is improved, and the quality of micro-foaming molded products is good.
As shown in fig. 1 and 2, the first pressure increasing member 1 includes a bottom plate 11, a first connecting column 12, a first circular truncated cone 13, a second connecting column 14, a second circular truncated cone 15, a third circular truncated cone 16, a fourth circular truncated cone 17, a fifth circular truncated cone 18 and a sixth circular truncated cone 19, the periphery of the bottom plate 11 is connected to the inner wall of the on-cavity cooling water inlet passage 40/the on-cavity cooling water inlet passage 50, a first tapered hole 111 is formed in the bottom plate 11, one end of the first connecting column 12 is connected to one end of the bottom plate 11, the first connecting column 12 is close to the water outlet end of the on-cavity cooling water inlet passage 40/the on-cavity cooling water inlet passage 50, a second tapered hole 121 is formed in the first connecting column 12, the second tapered hole 121 is communicated with the first tapered hole 111, and the large end of the second tapered hole is connected to the small end of the first tapered hole 111, the small end of the first circular table column 13 is connected with the other end of the first connecting column 12, a first through hole 131 is formed in the first circular table column 13, one end of the second connecting column 14 is connected with the large end of the first circular table column 13, a second through hole 141 is formed in the second connecting column 14, the second through hole 141 is communicated with the first through hole 131, the large end of the second circular table column 15 is connected with the other end of the second connecting column 14, a third through hole 151 is formed in the second circular table column 15, the third through hole 151 is communicated with the second through hole 141, the large end of the third circular table column 16 is connected with the small end of the second circular table column 15, a third conical hole 161 is formed in the third circular table column 16, the third conical hole 161 is communicated with the third through hole 151, and the large end of the third conical hole 161 is connected with the water outlet end of the third through hole 151, the small end of the fourth circular truncated cone column 17 is connected with the small end of the third circular truncated cone column 16, a fourth tapered hole 171 is formed in the fourth circular truncated cone column 17, the fourth tapered hole 171 is communicated with the third tapered hole 161, the large end of the fourth tapered hole 171 is connected with the small end of the third tapered hole 161, the large end of the fifth circular truncated cone column 18 is connected with the large end of the fourth circular truncated cone column 17, a fifth tapered hole 181 is formed in the fifth circular truncated cone column 18, the fifth tapered hole 181 is communicated with the third tapered hole 161, the large end of the fifth tapered hole 181 is connected with the small end of the fourth tapered hole 171, the large end of the sixth circular truncated cone column 19 is connected with the small end of the fifth circular truncated cone column 18, a sixth tapered hole 191 is formed in the sixth circular truncated cone column 19, the sixth tapered hole 191 is communicated with the fifth tapered hole 181, and the large end of the sixth tapered hole 191 is connected with the small end of the fifth tapered hole 181, the first taper hole 111 and the second taper hole 121 are communicated to form a first large taper hole, the first through hole 131, the second through hole 141 and the third through hole 151 are communicated to form a large through hole, and the third taper hole 161 and the fourth taper hole 171 are communicated to form a second large taper hole.
When the cooling liquid flows from the large through hole to the second large taper hole, then flows to the fifth taper hole 181 and finally flows out of the sixth taper hole 191, the radial size of the flow path of the cooling liquid is reduced all the time, so that the hydraulic pressure of the cooling liquid at the outlet of the sixth taper hole 191 is maximized, that is, the instantaneous speed of the cooling liquid flowing out of the sixth taper hole 191 is maximized, the flowing speed of the cooling liquid is accelerated, the cooling speed of the cavity 10 is accelerated, the cooling time of the cavity 10 is shortened, and the working efficiency of the mold core cooling mechanism of the micro-foaming deep-cavity injection mold is improved.
As shown in fig. 1 and 3, the second pressurizing member 2 includes an annular base plate 21, a connection pipe, a tapered water outlet pipe 25 and an iron sheet 26, the outer periphery of the annular base plate 21 is connected to the inner wall of the core cooling water inlet passage 60, the connection pipe is communicated with the inner hole of the annular base plate 21, the connection pipe includes a straight pipe portion 22, a first tapered pipe portion 23 and a second tapered pipe portion 24 which are connected in sequence, one end of the straight pipe portion 22 is connected to the annular base plate 21, the other end of the straight pipe portion 22 is connected to the small end of the first tapered pipe portion 23, the large end of the first tapered pipe portion 23 is connected to the large end of the second tapered pipe portion 24, the large end of the tapered water outlet pipe 25 is connected to the small end of the second tapered pipe portion 24, one side of the tapered water outlet pipe 25 has an opening 251, the iron sheet 26 is fixed to one side of the second tapered pipe portion 24, and one end of the iron sheet 26, the spring plate 27 can seal the opening 251.
When the cooling liquid passes through the second pressurizing part 2, because the opening 251 of the second pressurizing part 2 is blocked by the elastic sheet 27, when the cooling liquid flows out from the opening 251, the elastic sheet 27 can be opened, so that the hydraulic pressure is increased, the instantaneous speed is increased when the cooling liquid flows out from the opening 251, the flowing speed of the cooling liquid is increased, the cooling speed of the mold core 30 is increased, the cooling time of the mold core 30 is shortened, and the working efficiency of the mold core cooling mechanism of the micro-foaming deep-cavity injection mold is improved.
As shown in fig. 1, 4 and 5, the mold cavity core cooling mechanism of the micro-foaming deep cavity injection mold further comprises a pair of backflow-preventing components, the pair of backflow-preventing components are respectively located in two side walls of the core cooling water inlet path 60, the pair of backflow-preventing components are located above the corner of the core cooling water inlet path 60, the backflow-preventing components comprise a telescopic part 3, a spring 4, a driving rod 5, a first rack 6, a second rack 7, a blocking plate 8 and a magnet 70, a top plate 31 of the telescopic part 3 is in sliding fit with a corresponding large hole 201 on the backing plate 20, a bottom rod 32 of the telescopic part 3 is in sliding fit with a small hole 2011 on the bottom wall of the large hole 201, the spring 4 is arranged between the bottom rod 32 and the bottom wall of the small hole 2011, one end of the spring 4 is sleeved on a guide shaft 20111 located on the bottom wall of the small hole 2011, the driving rod 5 is arranged on the inner end of the top plate 31, the inner end of the driving rod 5 extends into the corresponding mounting cavity 202 on the base plate 20, the driving rod 5 is in sliding fit with a pair of first guide seats 2021 on the side wall of the mounting cavity 202, the first rack 6 is arranged on one side of the driving rod 5, the first rack 6 is in meshing connection with one side of a gear 2022 arranged in the mounting cavity 202, the second rack 7 is in meshing connection with the other side of the gear 2022, the second rack 7 is in sliding fit with a second guide seat 2023 arranged on the side wall of the mounting cavity 202, the blocking plate 8 is arranged at one end of the second rack 7 through a connecting rod 9, the connecting rod 9 is in sliding fit with a third guide seat 204 arranged on the side wall of the mounting cavity 202, the blocking plate 8 is in sliding fit with a through groove 2024 arranged on the side wall of the mounting cavity 202, and the magnet 70 is arranged at the outer end of the blocking plate 8, the backflow prevention assembly further comprises an end cap 80, the end cap 80 is arranged at the opening end of the large hole 201, and the top plate 31 can be limited in the large hole 201 by the end cap 80.
In the present embodiment, the magnets 70 having different magnetic properties are provided on the pair of blocking plates 8, respectively, so that the pair of blocking plates 8 can be attracted together to prevent the coolant from flowing back.
When the hydraulic pressure of the coolant liquid of core cooling water inlet passage 60's corner reaches a definite value, namely the flow of the coolant liquid of corner reaches a certain amount, can make extensible member 3 inwards remove, compression spring 4, and drive first rack 6 and remove, make gear 2022 rotate, drive second rack 7 and remove, release barrier plate 8, a pair of barrier plate 8 is in the same place through a pair of opposite sex magnet 70 actuation, thereby can prevent the coolant liquid backward flow, the cooling efficiency of this deep chamber injection mold die cavity core cooling body of foaming a little to the core has been improved, resources have been saved.
As shown in fig. 4, 6 and 7, the backflow prevention assembly further includes a sealing assembly 90, the sealing assembly 90 is disposed between the end cover 80 and the backing plate 20, the sealing assembly 90 is located in the corresponding annular mounting groove 203 on the backing plate 20, the sealing assembly 90 includes a support ring 901, a sealing ring 902 and a gland 903, a base ring 9011 of the support ring 901 is sleeved on the periphery of the end cover 80, an annular plate 9013 is connected to an outer end of the base ring 9011 through a wave ring 9012, the sealing ring 902 has an inner ring 9021, the inner ring 9021 is sleeved on the periphery of the end cover 80, an inner end surface of the inner ring 9021 is connected to an inner wall surface of the wave ring 9012 in a matching manner, the inner ring is integrally connected to an outer ring 9022 on the periphery of the outer ring 9021, a cavity 90221 is formed on an inner end of the outer ring 9022, a side wall of the cavity 90221 is formed with an annular 902211, an outer edge of the annular plate 9013 is embedded in the ring 902211, the outer ring 9022 is provided with an annular antenna 9023 on the periphery thereof and an extension ring 9025 connected with the outer ring 9024 through a bowl-shaped ring 9024, the periphery of the annular antenna 9023 abuts against the inner wall of the annular mounting groove 203, the small end of the bowl-shaped ring 9024 is connected with the outer ring 9022, the large end of the bowl-shaped ring 9024 is connected with the extension ring 9025, the gland 903 is screwed on the periphery of the end cover 80, the gland 903 defines the sealing ring 902 in the annular mounting groove 203, the periphery of the extension ring 9025 is provided with a plurality of annular grooves 90251, an annular convex tooth 90252 is formed between adjacent annular grooves 90251, and the periphery of the annular convex tooth 90252 abuts against the inner wall of the annular mounting groove 203.
When the end cap 80 is mounted on the backing plate 20, the outer peripheries of the annular antenna 9023 and the annular convex teeth 90252 are urged to expand outward into close contact with the inner wall of the annular mounting groove 203, so that effective sealing between the end cap 80 and the backing plate 20 can be performed.
The cooling mechanism is applied to the micro-foaming forming die, so that the quality of a micro-foaming product produced by the micro-foaming forming die is stable.
It should be noted that the described embodiments of the invention are only preferred ways of implementing the invention, and that all obvious modifications, which are within the scope of the invention, are all included in the present general inventive concept.
Claims (9)
1. The utility model provides a dark chamber injection mold die cavity core cooling body of micro-foaming, has die cavity (10), backing plate (20) and core (30), cooling water intake route (40) and die cavity side cooling water intake route (50) on being equipped with the die cavity in die cavity (10), be equipped with core cooling water intake route (60) in backing plate (20), just core cooling water intake route (60) extend to in core (30), its characterized in that, cooling water intake route (40) on the die cavity with all be equipped with first supercharging spare (1) in die cavity side cooling water intake route (50), be equipped with second supercharging spare (2) in core cooling water intake route (60), first supercharging spare (1) includes: the periphery of the bottom plate (11) is connected with the inner walls of the cavity upper cooling water inlet channel (40)/the cavity side cooling water inlet channel (50), and a first taper hole (111) is formed in the bottom plate (11); one end of the first connecting column (12) is connected with one end of the bottom plate (11), the first connecting column (12) is close to the water outlet end of the cooling water inlet channel (40) on the cavity/the cooling water inlet channel (50) on the cavity side, a second taper hole (121) is formed in the first connecting column (12), the second taper hole (121) is communicated with the first taper hole (111), and the large end of the second taper hole (121) is connected with the small end of the first taper hole (111); the small end of the first circular table column (13) is connected with the other end of the first connecting column (12), and a first through hole (131) is formed in the first circular table column (13); one end of the second connecting column (14) is connected with the large end of the first circular table column (13), a second through hole (141) is formed in the second connecting column (14), and the second through hole (141) is communicated with the first through hole (131); the big end of the second circular table column (15) is connected with the other end of the second connecting column (14), a third through hole (151) is formed in the second circular table column (15), and the third through hole (151) is communicated with the second through hole (141); the large end of the third circular table column (16) is connected with the small end of the second circular table column (15), a third conical hole (161) is formed in the third circular table column (16), the third conical hole (161) is communicated with the third through hole (151), and the large end of the third conical hole (161) is connected with the water outlet end of the third through hole (151); a small end of the fourth circular truncated cone column (17) is connected with a small end of the third circular truncated cone column (16), a fourth taper hole (171) is formed in the fourth circular truncated cone column (17), the fourth taper hole (171) is communicated with the third taper hole (161), and a large end of the fourth taper hole (171) is connected with a small end of the third taper hole (161); a fifth circular table column (18), wherein the large end of the fifth circular table column (18) is connected with the large end of the fourth circular table column (17), a fifth conical hole (181) is formed in the fifth circular table column (18), the fifth conical hole (181) is communicated with the third conical hole (161), and the large end of the fifth conical hole (181) is connected with the small end of the fourth conical hole (171); the large end of the sixth circular table column (19) is connected with the small end of the fifth circular table column (18), a sixth taper hole (191) is formed in the sixth circular table column (19), the sixth taper hole (191) is communicated with the fifth taper hole (181), and the large end of the sixth taper hole (191) is connected with the small end of the fifth taper hole (181).
2. The cooling mechanism for the cavity core of the micro-foaming deep-cavity injection mold according to claim 1, wherein the first taper hole (111) and the second taper hole (121) are communicated to form a first large taper hole, the first through hole (131), the second through hole (141) and the third through hole (151) are communicated to form a large through hole, and the third taper hole (161) and the fourth taper hole (171) are communicated to form a second large taper hole.
3. Micro-foaming deep cavity injection mold cavity core cooling mechanism according to claim 1, characterized in that the second plenum (2) comprises:
the periphery of the annular base plate (21) is connected with the inner wall of the core cooling water inlet channel (60);
the connecting pipe is communicated with an inner hole of the annular substrate (21), the connecting pipe comprises a straight pipe part (22), a first taper pipe part (23) and a second taper pipe part (24) which are sequentially connected, one end of the straight pipe part (22) is connected with the annular substrate (21), the other end of the straight pipe part (22) is connected with the small end of the first taper pipe part (23), and the large end of the first taper pipe part (23) is connected with the large end of the second taper pipe part (24);
the large end of the conical water outlet pipe (25) is connected with the small end of the second conical pipe part (24), and one side of the conical water outlet pipe (25) is provided with an opening (251);
the iron sheet (26) is fixed on one side of the second taper pipe portion (24), an elastic sheet (27) is fixed on one end of the iron sheet (26), and the opening (251) can be blocked by the elastic sheet (27).
4. The micro-foaming deep cavity injection mold cavity core cooling mechanism according to claim 3, further comprising a pair of backflow prevention components, wherein the backflow prevention components are respectively positioned in two side walls of the core cooling water inlet channel (60), and the backflow prevention components are positioned above corners of the core cooling water inlet channel (60).
5. The micro-foaming deep cavity injection mold cavity core cooling mechanism of claim 4, wherein the backflow prevention assembly comprises:
the top plate (31) of the telescopic piece (3) is in sliding fit with the corresponding large hole (201) in the base plate (20), and the bottom rod (32) of the telescopic piece (3) is in sliding fit with the small hole (2011) in the bottom wall of the large hole (201);
the spring (4) is arranged between the bottom rod (32) and the bottom wall of the small hole (2011), and one end of the spring (4) is sleeved on a guide shaft (20111) positioned on the bottom wall of the small hole (2011);
the driving rod (5) is arranged at the inner end of the top plate (31), the inner end of the driving rod (5) extends into the corresponding mounting cavity (202) on the base plate (20), and the driving rod (5) is in sliding fit with a pair of first guide seats (2021) on the side wall of the mounting cavity (202);
a first rack (6), wherein the first rack (6) is arranged on one side of the driving rod (5), and the first rack (6) is in meshed connection with one side of a gear (2022) arranged in the mounting cavity (202);
the second rack (7), the second rack (7) is meshed with the other side of the gear (2022), and the second rack (7) is in sliding fit with a second guide seat (2023) on the side wall of the installation cavity (202);
the blocking plate (8) is arranged at one end of the second rack (7) through a connecting rod (9), and the blocking plate (8) is in sliding fit with a through groove (2024) formed in the side wall of the mounting cavity (202);
a magnet (70), the magnet (70) being disposed on an outer end of the blocking plate (8).
6. The micro-foaming deep cavity injection mold cavity core cooling mechanism according to claim 5, wherein the backflow prevention assembly further comprises an end cap (80), the end cap (80) is disposed at an open end of the large hole (201), and the end cap (80) is capable of defining the top plate (31) within the large hole (201).
7. The micro-foaming deep cavity injection mold cavity core cooling mechanism according to claim 6, wherein the backflow prevention assembly further comprises a sealing assembly (90), the sealing assembly (90) is arranged between the end cover (80) and the backing plate (20), and the sealing assembly (90) is positioned in a corresponding annular mounting groove (203) on the backing plate (20).
8. The micro-foaming deep cavity injection mold cavity core cooling mechanism of claim 7, wherein the sealing assembly (90) comprises:
a base ring (9011) of the support ring (901) is sleeved on the periphery of the end cover (80), and the outer end of the base ring (9011) is connected with an annular plate (9013) through a wavy ring (9012);
the sealing ring (902), the sealing ring (902) is provided with an inner ring (9021), the inner ring (9021) is sleeved on the periphery of the end cover (80), and the inner end surface of the inner ring (9021) is matched and connected with the inner wall surface of the wavy ring (9012), an outer ring (9022) is integrally connected to the outer periphery of the inner ring (9021), a concave cavity (90221) is formed in the inner end of the outer ring (9022), an annular cavity (902211) is arranged on the side wall of the concave cavity (90221), the outer edge of the annular plate (9013) is embedded in the annular cavity (902211), the periphery of the outer ring (9022) is provided with an annular antenna (9023) and an extension ring (9025) connected with the outer ring through a bowl-shaped ring (9024), the periphery of the annular antenna (9023) is abutted against the inner wall of the annular mounting groove (203), the small end of the bowl-shaped ring (9024) is connected with the outer ring (9022), and the large end of the bowl-shaped ring (9024) is connected with the extension ring (9025);
the gland (903), gland (903) spiral shell establish on the periphery of end cover (80), gland (903) will sealing washer (902) are injectd in annular mounting groove (203).
9. The cooling mechanism for the mold cavity and the core of the micro-foaming deep cavity injection mold according to claim 8, wherein a plurality of annular grooves (90251) are formed on the outer periphery of the extension ring (9025), annular convex teeth (90252) are formed between adjacent annular grooves (90251), and the outer periphery of the annular convex teeth (90252) abuts against the inner wall of the annular mounting groove (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910818196.8A CN110421809B (en) | 2019-08-30 | 2019-08-30 | Mold cavity core cooling mechanism of micro-foaming deep-cavity injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910818196.8A CN110421809B (en) | 2019-08-30 | 2019-08-30 | Mold cavity core cooling mechanism of micro-foaming deep-cavity injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110421809A CN110421809A (en) | 2019-11-08 |
| CN110421809B true CN110421809B (en) | 2021-05-07 |
Family
ID=68418339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910818196.8A Active CN110421809B (en) | 2019-08-30 | 2019-08-30 | Mold cavity core cooling mechanism of micro-foaming deep-cavity injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110421809B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1212508A (en) * | 1984-01-11 | 1986-10-14 | Henry N. Shoji | Two-part mold core |
| JPH0622838B2 (en) * | 1987-07-22 | 1994-03-30 | 富士写真フイルム株式会社 | Injection mold |
| JPH09262870A (en) * | 1996-01-23 | 1997-10-07 | Sekisui Chem Co Ltd | Injection mold and its production |
| JPH1158473A (en) * | 1997-08-12 | 1999-03-02 | Sekisui Chem Co Ltd | Die for injection molding |
| CN105082482A (en) * | 2014-05-23 | 2015-11-25 | 陈南吉 | Acceleration and pressurization energy saving device for injection molding machine |
| CN108068286A (en) * | 2017-12-07 | 2018-05-25 | 浙江凯华模具有限公司 | Fretting map depth chamber molding mold cavity core cooling body |
-
2019
- 2019-08-30 CN CN201910818196.8A patent/CN110421809B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110421809A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110421809B (en) | Mold cavity core cooling mechanism of micro-foaming deep-cavity injection mold | |
| CN201306311Y (en) | Water pump stream guidance disc | |
| CN201258849Y (en) | Water pump bottom valve | |
| CN203495147U (en) | Poly-carbon gypsum impeller mould core and mould for manufacturing mould core | |
| CN210484036U (en) | External gear pump capable of compensating end surface clearance | |
| CN111852811B (en) | Small-size domestic suction pump | |
| CN209578062U (en) | A kind of mould structure for the production of cylinder machine front cover | |
| CN210436566U (en) | Die carrier with cooling function | |
| CN208311135U (en) | A kind of late-model inline pump | |
| CN109469647B (en) | Guide vane structure of well submersible electric pump flow-through component and injection molding process | |
| KR100508683B1 (en) | Method for manufacturing water pump impeller assembly for automobile using injection mold | |
| CN203784082U (en) | Damping rotating shaft mechanism with self-compensation function | |
| CN208593000U (en) | The molding die of impeller | |
| CN207758049U (en) | A kind of injection mold structure of multi-chamber | |
| CN210770269U (en) | Low pressure homogeneity valve based on integral type disk seat | |
| CN210715027U (en) | Pump case support for diaphragm pump | |
| CN221246866U (en) | Casting die utensil of ring flange production | |
| CN221219021U (en) | Flushing valve with high-low pressure flow balance | |
| CN217704449U (en) | Secondary encapsulation injection mold for folding bathtub | |
| KR20200047025A (en) | Vacuum molding apparatus | |
| CN208835155U (en) | Improved alkaline battery sealing ring | |
| CN215458850U (en) | Water inlet assembly for portable tooth washing device | |
| CN213559750U (en) | Water-through mold assembly | |
| CN215568024U (en) | Liquid valve | |
| CN216044572U (en) | Novel water inlet and outlet section of vertical multi-stage pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231213 Address after: 311400 Shangguan Xiang Fang Cun, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU HAOZHI TECHNOLOGY CO.,LTD. Address before: 311414 No. 810, Kou Kou, Dayuan Town, Fuyang District, Hangzhou, Zhejiang Patentee before: HANGZHOU LYUYI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Effective date of registration: 20231213 Address after: 311414 No. 810, Kou Kou, Dayuan Town, Fuyang District, Hangzhou, Zhejiang Patentee after: HANGZHOU LYUYI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: No. 198, Gaoke Road, Fuyang, Hangzhou, Zhejiang, 311402 Patentee before: HANGZHOU POLYTECHNIC |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240118 Address after: 311400 No. 355, Dajian Road, Xindeng Town, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU HANLIGHT ELECTRICAL CO.,LTD. Address before: 311400 Shangguan Xiang Fang Cun, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU HAOZHI TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |