CN108312445A - A kind of injection mold of oil can bottom of the pot - Google Patents

A kind of injection mold of oil can bottom of the pot Download PDF

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Publication number
CN108312445A
CN108312445A CN201810420940.4A CN201810420940A CN108312445A CN 108312445 A CN108312445 A CN 108312445A CN 201810420940 A CN201810420940 A CN 201810420940A CN 108312445 A CN108312445 A CN 108312445A
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CN
China
Prior art keywords
core
pot
oil return
side form
hole
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.)
Granted
Application number
CN201810420940.4A
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Chinese (zh)
Other versions
CN108312445B (en
Inventor
戚永幸
陈有桦
姜校平
栗原洋
上田雄史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SZEPAK PRECISION (WUXI) CO Ltd
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SZEPAK PRECISION (WUXI) CO Ltd
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Priority to CN201810420940.4A priority Critical patent/CN108312445B/en
Publication of CN108312445A publication Critical patent/CN108312445A/en
Application granted granted Critical
Publication of CN108312445B publication Critical patent/CN108312445B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332Mountings or guides therefor; Drives therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/34Moulds having venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C45/68Mould opening, closing or clamping devices hydro-mechanical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating
    • B29C45/80Measuring, controlling or regulating of relative position of mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76494Controlled parameter
    • B29C2945/76568Position

Abstract

The present invention relates to a kind of injection mold, especially a kind of injection mold of oil can bottom of the pot, including bottom of the pot upper mold core, connecting seat Loose core block, bottom of the pot side form core, bottom of the pot oil return side form core and bottom of the pot lower mold core;The bottom of the pot upper mold core, connecting seat Loose core block, flowline core_pulling pole, bottom of the pot side form core, bottom of the pot oil return side form core, bottom of the pot lower mold core, oil return pipe core_pulling pole, oil return pipe upper mold section and oil return pipe female die are combined to form bottom of the pot cavity.Injection mold one-pass molding bottom of the pot, the structure of a kind of oil can bottom of the pot provided by the invention are reliable, stable, auxiliary device is few, die cost is low, repair a die less, use cost is low.

Description

A kind of injection mold of oil can bottom of the pot
Technical field
The present invention relates to a kind of injection mold, especially a kind of injection mold of oil can bottom of the pot.
Background technology
The general lower end of power-assisted steering oil can is tightly placed in the connecting bracket equipped with hydraulic pump, and side is equipped with oil return pipe, connects low Push back oil pipe.The lubricating oil that inside provides hydraulic booster keeps liquid level between the minimum pasta scale with highest.It turns on The oil-can lid of oil can upper end can carry out replacement and the supplement of fluid.So oil can lower face is ensureing the cooperation with connecting bracket It is firm close, in the case that seal is excellent, only just need to dismantle and reset in the repair of hydraulic pump and replacement.
As shown in Figure 17 and Figure 18,93 structure of bottom of the pot is more special, and the bottom of bottom of the pot 93 is equipped with connecting seat 935, connecting seat The plane of 935 opposite bottom of the pot 93 is obliquely installed, and the both sides of connecting seat 935 are equipped with location hole 937, and flowline 936 is located at connecting seat On 935, and there are two flowline 936 sets, the bottom of bottom of the pot 93 is additionally provided with the mounting hole 934 of protrusion bottom surface, and mounting hole 934 is located at The side of the side of connecting seat 935, bottom of the pot 93 is equipped with oil return pipe 933, and the end of oil return pipe 933 is equipped with the conical head of sealing 938.Being internally provided with for bottom of the pot 93 connects oil pipe 932, and the bottom for connecing oil pipe 932 is equipped with intercommunicating pore 931, and intercommunicating pore 931 makes to connect oil pipe 932 communicate with other spaces of bottom of the pot 93.The inside of bottom of the pot 93 is additionally provided with multiple reinforcing ribs 939, and reinforcing rib 939 increases intensity, Increase the welding area of pot lid and bottom of the pot 93 simultaneously, improves heat seal strength.Bottom of the pot 93 it is complicated, if using common two A half module leads to that mould structure complexity, mold high processing costs, injection efficiency is low, product quality is poor.
Invention content
To solve the above problems, the present invention provides, one kind can one-pass molding bottom of the pot, structure be reliable, stable, auxiliary A kind of injection mold for oil can bottom of the pot that device is few, die cost is low, specific technical solution are:
A kind of injection mold of oil can bottom of the pot, including bottom of the pot upper mold core, connecting seat Loose core block, bottom of the pot side form core, bottom of the pot are returned Oily side form core and bottom of the pot lower mold core;
The bottom of the pot upper mold core is fixed on cope plate, and the bottom of bottom of the pot upper mold core is equipped with bottom of the pot cavity A and bottom of the pot side form Hole is tiltedly taken out in core slot, top equipped with connecting seat, and connecting seat is tiltedly taken out hole and communicated with bottom of the pot cavity A, and bottom of the pot upper mold core is also equipped with oil return pipe Upper mold section;
The connecting seat Loose core block activity is inserted in connecting seat and tiltedly takes out in hole, and one end of connecting seat Loose core block is slidably mounted on On die holder, flowline core_pulling pole is housed in connecting seat Loose core block;
The side of the bottom of the pot side form core is equipped with bottom of the pot cavity B and mounting hole core pulling column;
The side of the bottom of the pot oil return side form core is equipped with bottom of the pot cavity C, location hole core_pulling pole, oil return pipe core_pulling pole and oil return Pipe shaped insert, oil return pipe core_pulling pole are inserted in oil return pipe shaped insert, and bottom of the pot oil return side form core is equipped with oil return pipe die hole, are returned Oil pipe die hole is through-hole;
The bottom of the pot side form core and bottom of the pot oil return side form core activity are inserted in bottom of the pot side form core slot, bottom of the pot side form core and sliding Split cast mounting connects, and bottom of the pot oil return side form core is connect with pneumatic split cast mounting, slides split cast mounting and pneumatic split cast mounting is pacified In lower template;
The bottom of the pot lower mold core is fixed in lower template, and the top of bottom of the pot lower mold core is equipped with bottom of the pot core and bottom of the pot cast gate, Activity is equipped with intercommunicating pore core_pulling pole on bottom of the pot core, and also activity is equipped with oil return pipe female die, bottom of the pot lower mold core in bottom of the pot lower mold core Bottom be equipped with bottom of the pot liftout hole, thimble is housed in bottom of the pot liftout hole;
One end of oil return pipe female die is fixed on backing plate;
Intercommunicating pore core_pulling pole is obliquely installed, and one end of intercommunicating pore core_pulling pole is arranged with semicircle sliding groove, and semicircle is sliding Dynamic slot sliding is inserted on the arc sliding boss of intercommunicating pore pull rod, and intercommunicating pore pull rod is fixed on thimble bottom plate;
Thimble is fixed on thimble upper mounted plate;
Oil return pipe upper mold section and oil return pipe female die activity are inserted in the oil return pipe die hole of bottom of the pot oil return side form core;
The bottom of the pot upper mold core, connecting seat Loose core block, flowline core_pulling pole, bottom of the pot side form core, bottom of the pot oil return side form core, pot Beneath mold core, oil return pipe core_pulling pole, oil return pipe upper mold section and oil return pipe female die are combined to form bottom of the pot cavity;
Backing plate, thimble upper mounted plate, thimble bottom plate and lower die holder, thimble upper mounted plate are equipped with below lower template successively It is installed together with thimble bottom plate, connecting plate is equipped between backing plate and lower die holder, connecting plate is mounted on thimble upper mounted plate Both sides;
Upper open-top spring is housed between upper die holder and cope plate, open-top spring is housed down between lower template and backing plate;
When die sinking, upper die holder rises under the action of upper open-top spring, and upper die holder drives connecting seat Loose core block to skid off pot The connecting seat at bottom, then lower template risen under the action of open-top spring under, oil return pipe female die leaves bottom of the pot oil return side form core Oil return pipe die hole, then cope plate detached with lower template, oil return pipe upper mold section leaves the oil return pipe die of bottom of the pot oil return side form core Hole, sliding split cast mounting drive bottom of the pot side form core to be detached with bottom of the pot lower mold core, and then pneumatic split cast mounting drives bottom of the pot oil return side Mold core is detached with bottom of the pot lower mold core, and last thimble upper mounted plate and thimble bottom plate rise jointly, and thimble is by bottom of the pot from bottom of the pot The bottom of the pot core of lower mold core detaches.
By using above-mentioned technical proposal, bottom of the pot upper mold core, connecting seat Loose core block, flowline core_pulling pole, bottom of the pot side form core, Bottom of the pot oil return side form core, bottom of the pot lower mold core, oil return pipe core_pulling pole, oil return pipe upper mold section and oil return pipe female die are combined to be formed Bottom of the pot cavity realizes one-pass molding.
Connecting seat Loose core block is obliquely installed, and be slidably installed fall in love with it is conveniently stripped on die holder.It is equipped in connecting seat Loose core block Flowline core_pulling pole realizes the one-pass molding of connecting seat and flowline.Flowline core_pulling pole, which is mounted on connecting seat, keeps structure simple Single, flowline core_pulling pole is separately provided the difficulty of processing for reducing connecting seat, reduces processing cost, and mold is made to safeguard and repair Mould is convenient, realizes reduction use cost.
Mounting hole core pulling column is integrally formed the peace for avoiding the surface of mounting hole from generating burr influence oil can with bottom of the pot side form core Dress.
Location hole core_pulling pole, oil return pipe core_pulling pole and oil return pipe shaped insert reduce the difficult processing of bottom of the pot oil return side form core Degree, reduces processing cost, and mold is made to safeguard and repair a die conveniently, realizes reduction use cost.
Oil return pipe core_pulling pole, oil return pipe shaped insert, oil return pipe upper mold section and oil return pipe female die realize oil return pipe Molding, simplifies the structure of mold.
What sliding split cast mounting and pneumatic split cast mounting realized bottom of the pot side form core and bottom of the pot oil return side form core respectively divides mould.
Realized using intercommunicating pore core_pulling pole and connect the connection hole forming of oil pipe bottom, avoid secondary operation, realize once at Type reduces the production cost of bottom of the pot.
Since mold core intensity is high, high precision machining, bottom of the pot side form core and bottom of the pot oil return side form core activity are inserted in bottom of the pot side form Accurate positioning is realized in core slot, ensures the stabilization of cavity.
If using two half modules and bottom of the pot lower mold core coordinated, need to process precision in cope plate and lower template higher Locating slot or the high-precision positioning device of installation, avoid position in injection moulding process from shifting, cause mould structure multiple in this way It is miscellaneous, and the intensity requirement of cope plate and lower template is got higher, and cope plate and the volume and weight of lower template are larger, material Cost is got higher, and processing cost greatly improves.
Opening sequence by controlling mold realizes demoulding, simplifies the structure of mold, reduces the use of auxiliary device.
Preferably, the top of the connecting seat Loose core block is equipped with sliding panel, and sliding panel is slidably mounted on the slide plate of upper die holder In slot, the top of skateboard slot is equipped with sliding slot cover board.
By using above-mentioned technical proposal, the fixation of sliding panel and sliding slot cover board realization connecting seat Loose core block.Sliding slot cover board Prevent connecting seat Loose core block from being ejected in clamping process middle slide plate slot.
Upper die holder rises, and upper die holder drives connecting seat Loose core block to rise by sliding panel, and connecting seat Loose core block is from connecting seat Middle extraction, sliding panel slide the inclination extraction for realizing connecting seat Loose core block in the skateboard slot of upper die holder.
Preferably, core pulling block is housed, connecting seat Loose core block activity is inserted on core pulling block on the cope plate.
By using above-mentioned technical proposal, connecting seat Loose core block is slidably matched with core pulling block, realizes connecting seat Loose core block Lifting and guiding.It is easy to process due to Loose core block seat small volume, processing cost can be reduced, avoids processing on cope plate High-precision inclined hole, while the frictional force for making inclined lift generate is born by core pulling block, is avoided tiltedly taking out hole by connecting seat and be born, Extend the service life that connecting seat tiltedly takes out hole, the stability for reducing maintenance time, reducing use cost, improving mold.
Preferably, the sliding split cast mounting includes inclined guide, side form sliding block, gag lever post and limit spring;It is described tiltedly to lead Bar is mounted on by guide rod fixed block on cope plate;The side form sliding block is equipped with pilot hole, and inclined guide activity is inserted in pilot hole In, side form sliding block is slidably mounted in lower template, the side of side form sliding block respectively with bottom of the pot side form core or bottom of the pot oil return side form core Connection, the other side are equipped with sliding bevel, sliding bevel and the indentation slopes which match on cope plate;One end of the gag lever post is solid It is scheduled on the other side of side form sliding block, gag lever post activity is inserted on carrier base;The limit spring is inserted on gag lever post, and positioned at limit Between the other end and carrier base of position bar.
By using above-mentioned technical proposal, inclined guide follows cope plate to rise, and inclined guide is by side form sliding block to the two of mold Side pushes, and side form sliding block drives bottom of the pot side form core and the separation of bottom of the pot oil return side form core.
When cope plate declines molding, the indentation slope driving sliding bevel of cope plate, side form sliding block is slided to mould inside, Bottom of the pot side form core and the molding of bottom of the pot oil return side form core.
Limit spring makes side form sliding block always by the outer side draw to mold, after inclined guide is detached with side sliding block, Limit spring makes side form sliding block be pressed on carrier base by gag lever post, prevents the position of side form sliding block from changing and causes inclined guide Bump against with side sliding block, can not mold.
Preferably, the both sides of the bottom of the side form sliding block be equipped with positive stop lug boss, positive stop lug boss be located at limit sliding shoe with Between lower template, limit sliding shoe is mounted in lower template;The side locating slot of the side form sliding block, bottom of the pot side form core and bottom of the pot It is equipped with positioning table on oil return side form core, positioning table is inserted in locating slot.
By using above-mentioned technical proposal, position limiting slide block is pressed on the both sides of side form sliding block and the top of positive stop lug boss, real Existing side form sliding block is accurately positioned.
Positioning table and locating slot realize being accurately positioned for bottom of the pot side form core and bottom of the pot oil return side form core and side form sliding block, and prevent Only relative position changes, and improves the stability of mold.
Preferably, the pneumatic split cast mounting includes cylinder, side form sliding block and link block;The cylinder is fixed on lower template On, the piston rod of cylinder is connect with link block, and link block is mounted on the side of side form sliding block.
By using above-mentioned technical proposal, bottom of the pot oil return side form core needs oil return pipe upper mold section and oil return pipe lower half when skidding off Mould is not in oil return pipe die hole, therefore the side form sliding block being connect with bottom of the pot oil return side form core can not be ejected by inclined guide, only Driven after cope plate and lower template separation oil return pipe upper mold section and oil return pipe female die leave oil return pipe die hole could from skidding off, and It is unpowered at this time, need auxiliary device, cylinder to provide the power that bottom of the pot oil return side form core skids off.
Preferably, the top of the bottom of the pot lower mold core is equipped with bottom of the pot air discharge duct, and bottom of the pot air discharge duct is arranged around bottom of the pot core; It is equipped with cooling-water duct in the bottom of the pot upper mold core, bottom of the pot side form core, bottom of the pot oil return side form core and bottom of the pot lower mold core.
By using above-mentioned technical proposal, bottom of the pot air discharge duct realizes Quick air-discharge.Cooling water channel realizes fast cooling, contracting Short injection time.Since mode is divided into multiple, it is each independent cooling, further improves cooling efficiency, and makes cooling equal Weighing apparatus, avoids cooling temperature unevenness and bottom of the pot is caused to deform.
Preferably, the bottom of the pot core is divided into fixed core, core A, core B, core C and core D, fixed core and pot Beneath mold core is overall structure, and bottom of the pot lower mold core is equipped with core slot, core A, core B and core C, core are housed in core slot A, the bottom of core B and core C are equipped with core boss, and core boss is mounted in the boss slot of bottom of the pot core, core B and type The core boss of core C is in the boss slot of core A;Core D is mounted in the cored hole of fixed core.
By using above-mentioned technical proposal, since bottom of the pot internal structure is complicated, bottom of the pot core is divided into and multiple simplifies type The structure of core, reduce difficulty of processing, reduce processing cost and the later stage repair a die conveniently, significantly reduce maintenance cost.
Preferably, further include die sinking order controller, the die sinking order controller includes pull rod, inserted link, limit Pin and limit base;The limit base is equipped with jack, and the side of jack is equipped with limit hole, and limit hole is kidney slot, in limit hole Activity is equipped with spacer pin;One end activity of the pull rod is inserted in jack, and one end of pull rod is equipped with upper ejector pin inclined-plane and limiting slot, Upper ejector pin slope driving spacer pin slides in limit hole, and spacer pin active card is in limiting slot;One end activity of the inserted link It is inserted in jack, one end of inserted link is equipped with lower ejector pin inclined-plane, and lower ejector pin slope driving spacer pin slides in limit hole.
Preferably, the limit base includes locking bed and locking bottom plate;The locking bed is equipped with slot, locks on bottom plate Equipped with limit hole;Locking bed is fixed on locking bottom plate, and limit hole is communicated with slot;The locking bed is equipped with pin hole, pin There are two nail hole is set, pin hole is located at the both sides of slot, and one of pin hole is located at locking bed center, another pin Hole is located at one end of locking bed;The locking bottom plate is equipped with the through-hole to match with pin hole;The top of the pull rod is equipped with It is inserted into inclined-plane;The limiting slot is arc groove.
By using above-mentioned technical proposal, inserted link is fixed on upper die holder, and locking bottom plate is fixed on cope plate, locking bed It is fixed on locking bottom plate, pull rod is fixed in lower template.Since inserted link and pull rod are inserted in slot, position-limitting pin is by inserted link It is limited in limiting slot, position-limitting pin limitation locking bottom plate movement, locking bottom plate limitation cope plate movement.When die sinking, molding Under the restriction of order controller, upper die holder first rises, and after upper die holder rises, inserted link rises, and upper ejector pin inclined-plane is raised to limit Above pin, spacer pin can move freely, and then cope plate rises under the drive of upper connecting rod, and position-limitting pin is by pull rod top From limiting slot, cope plate rises completely, and pull rod is detached from slot, realizes the die sinking successively of upper die holder and cope plate.
If upper die holder cannot first rise, connecting seat Loose core block and flowline core_pulling pole can draw bad bottom of the pot, suitable by molding Sequence control device ensures the rise successively of upper die holder and cope plate.
Compared with prior art the invention has the advantages that:
Injection mold one-pass molding bottom of the pot, the structure of a kind of oil can bottom of the pot provided by the invention be reliable, stable, auxiliary Device is few, die cost is low, repair a die less, use cost is low.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention;
Fig. 2 is the schematic cross-sectional view of the present invention;
Fig. 3 is the structural schematic diagram of bottom of the pot upper mold core;
Fig. 4 is the positive structural schematic diagram of bottom of the pot side form core;
Fig. 5 is the structural schematic diagram at the back side of bottom of the pot side form core;
Fig. 6 is the positive structural schematic diagram of bottom of the pot oil return side form core;
Fig. 7 is the cross-sectional view of bottom of the pot oil return side form core;
Fig. 8 is the axis geodesic structure schematic diagram of bottom of the pot lower mold core;
Fig. 9 is the configuration schematic diagram of bottom of the pot lower mold core;
The front view of Figure 10 bottom of the pot lower mold cores;
Figure 11 is the structural schematic diagram of intercommunicating pore pull rod;
Figure 12 is the structural schematic diagram for sliding split cast mounting;
Figure 13 is the structural schematic diagram of side form sliding block;
Figure 14 is the axis geodesic structure schematic diagram for molding smooth control device;
Figure 15 is the main structure diagram for molding smooth control device;
Figure 16 is the structural schematic diagram of pull rod;
Figure 17 is the positive structure schematic of bottom of the pot;
Figure 18 is the structure schematic diagram of bottom of the pot.
Specific implementation mode
In conjunction with attached drawing, the invention will be further described.
As shown in Fig. 1 to Figure 16, a kind of injection mold of oil can bottom of the pot, including bottom of the pot upper mold core 51, connecting seat Loose core block 54, bottom of the pot side form core 52, bottom of the pot oil return side form core 53 and bottom of the pot lower mold core 55;
As shown in figure 3, bottom of the pot upper mold core 51 is fixed on cope plate 2, the bottom of bottom of the pot upper mold core 51 is equipped with bottom of the pot cavity Hole is tiltedly taken out in A511 and bottom of the pot side form core slot 513, top equipped with connecting seat, and connecting seat is tiltedly taken out hole and communicated with bottom of the pot cavity A511, pot Bottom upper mold core 51 is also equipped with oil return pipe upper mold section 512;
54 activity of connecting seat Loose core block is inserted in connecting seat and tiltedly takes out in hole, and one end of connecting seat Loose core block 54 is slidably mounted on On die holder 1, flowline core_pulling pole 542 is housed in connecting seat Loose core block 54;
As shown in Figure 4 and Figure 5, the side of bottom of the pot side form core 52 is equipped with bottom of the pot cavity B521 and mounting hole core pulling column 522;
As shown in Figure 6 and Figure 7, the side of bottom of the pot oil return side form core 53 is equipped with bottom of the pot cavity C531, location hole core_pulling pole 532, oil return pipe core_pulling pole 534 and oil return pipe shaped insert 535, oil return pipe core_pulling pole 534 are inserted in oil return pipe shaped insert 535 In, bottom of the pot oil return side form core 53 is equipped with oil return pipe die hole 533, and oil return pipe die hole 533 is through-hole;
Bottom of the pot side form core 52 and 53 activity of bottom of the pot oil return side form core are inserted in bottom of the pot side form core slot 513, bottom of the pot side form core 52 It is connect with sliding split cast mounting, bottom of the pot oil return side form core 53 is connect with pneumatic split cast mounting, is slided split cast mounting and is pneumatically divided mould Device is installed in lower template 3;
As shown in Figs. 8 to 11, bottom of the pot lower mold core 55 is fixed in lower template 3, and the top of bottom of the pot lower mold core 55 is equipped with pot Die bed core 551 and bottom of the pot cast gate 552, on bottom of the pot core 551 activity intercommunicating pore core_pulling pole 553 is housed, in bottom of the pot lower mold core 55 also Activity is equipped with oil return pipe female die 554, and the bottom of bottom of the pot lower mold core 55 is equipped with bottom of the pot liftout hole 555, is filled in bottom of the pot liftout hole 555 There is thimble 68;One end of oil return pipe female die 554 is fixed on backing plate 61;Intercommunicating pore core_pulling pole 553 is obliquely installed, and intercommunicating pore is taken out One end of core bar 553 is arranged with semicircle sliding groove 5531, and the sliding of semicircle sliding groove 5531 is inserted in intercommunicating pore pull rod 554 On arc sliding boss 5541, intercommunicating pore pull rod 554 is fixed on thimble bottom plate 64;Thimble 68 is fixed on thimble fixed On plate 63;Oil return pipe upper mold section 512 and 554 activity of oil return pipe female die are inserted in the oil return pipe die hole of bottom of the pot oil return side form core 53 In 533;The bottom of the pot upper mold core 51, connecting seat Loose core block 54, flowline core_pulling pole 542, bottom of the pot side form core 52, bottom of the pot oil return side Mold core 53, bottom of the pot lower mold core 55, oil return pipe core_pulling pole 534, oil return pipe upper mold section 512 and oil return pipe female die 554 are combined Form bottom of the pot cavity;
3 lower section of lower template is equipped with backing plate 61, thimble upper mounted plate 63, thimble bottom plate 64 and lower die holder 62, top successively Needle upper mounted plate 63 and thimble bottom plate 64 are installed together, and connecting plate 67, connection are equipped between backing plate 61 and lower die holder 62 Plate 67 is mounted on the both sides of thimble upper mounted plate 63;
3 lower section of lower template is sequentially arranged with backing plate 61, connecting plate 67 and lower die holder 62.Connecting plate 67 is equipped with two pieces, connecting plate 67 are mounted on the both sides of lower die holder 62.Thimble upper mounted plate 63 and thimble bottom plate 64 are housed, on thimble between connecting plate 67 Fixed plate 63 and thimble bottom plate 64 are installed together, and thimble 68 is fixed on thimble upper mounted plate 63.Thimble upper mounted plate 63 and thimble bottom plate 64 be movably arranged on lower guide rod 66, the both ends of lower guide rod 66 are separately fixed at backing plate 61 and lower die holder On 62.Thimble upper mounted plate 63 and thimble bottom plate 64 are lifted along lower guide rod 66, and thimble 68 is by bottom of the pot 93 from bottom of the pot core 551 Ejection.
Upper open-top spring 12 is housed between upper die holder 1 and cope plate 2, open-top bullet is housed down between lower template 3 and backing plate 61 Spring 65.
When die sinking, upper die holder 1 rises under the action of upper open-top spring 12, and upper die holder 1 drives connecting seat Loose core block 54 Skid off the connecting seat 935 of bottom of the pot 93, then lower template 3 rises under under the action of open-top spring 65, oil return pipe female die 554 from Open the oil return pipe die hole 533 of bottom of the pot oil return side form core 53, then cope plate 2 is detached with lower template 3, oil return pipe upper mold section 512 from The oil return pipe die hole 533 of bottom of the pot oil return side form core 53 is opened, sliding split cast mounting drives bottom of the pot side form core 52 and bottom of the pot lower mold core 55 It detaches, then pneumatic split cast mounting drives bottom of the pot oil return side form core 53 to be detached with bottom of the pot lower mold core 55, last thimble upper mounted plate 63 and thimble bottom plate 64 rise jointly, thimble 68 ejects bottom of the pot 93 from bottom of the pot core 551.
The top of connecting seat Loose core block 54 is equipped with sliding panel 541, and sliding panel 541 is slidably mounted on the skateboard slot of upper die holder 1 In 16, the top of skateboard slot 16 is equipped with sliding slot cover board.
Core pulling block 24 is housed, 54 activity of connecting seat Loose core block is inserted on core pulling block 24 on cope plate 2.
It includes inclined guide 47, side form sliding block 41, gag lever post 44 and limit spring 45 to slide split cast mounting;The inclined guide 47 It is mounted on cope plate 22 by guide rod fixed block 48;The side form sliding block 41 is equipped with pilot hole 411, and 47 activity of inclined guide is inserted In pilot hole 411, side form sliding block 41 is slidably mounted in lower template 3, the side of side form sliding block 41 respectively with bottom of the pot side form core 52 or bottom of the pot oil return side form core 53 connect, the other side is equipped with sliding bevel 412, the indentation on sliding bevel 412 and cope plate 22 Slopes which match;One end of the gag lever post 44 is fixed on the other side of side form sliding block 41, and 44 activity of gag lever post is inserted in carrier base On 43;The limit spring 45 is inserted on gag lever post 44, and between the other end and carrier base 43 of gag lever post 44.
The both sides of the bottom of side form sliding block 41 are equipped with positive stop lug boss 413, and positive stop lug boss 413 is located at limit sliding shoe 49 under Between template 3, limit sliding shoe 49 is mounted in lower template 3;The side locating slot 414 of the side form sliding block 41, bottom of the pot side form It is equipped with positioning table 313 on core 52 and bottom of the pot oil return side form core 53, positioning table 313 is inserted in locating slot 414.
Pneumatic split cast mounting includes cylinder 431, side form sliding block 41 and link block 432;The cylinder 431 is fixed on lower template On 3, the piston rod of cylinder 431 is connect with link block 432, and link block 432 is mounted on the side of side form sliding block 41.
The top of bottom of the pot lower mold core 55 is equipped with bottom of the pot air discharge duct, and bottom of the pot air discharge duct is arranged around bottom of the pot core 551;The pot It is equipped with cooling-water duct 205 in bottom upper mold core 51, bottom of the pot side form core 52, bottom of the pot oil return side form core 53 and bottom of the pot lower mold core 55.
Bottom of the pot core 551 is divided into fixed core, core A555, core B556, core C557 and core D558, fixed core Be overall structure with bottom of the pot lower mold core 55, bottom of the pot lower mold core 55 is equipped with core slot 559, in core slot 559 equipped with core A555, The bottom of core B556 and core C557, core A555, core B556 and core C557 are equipped with core boss, core A555's Core boss is mounted in the boss slot of lower mold core 55, and the core boss of core B556 and core C557 are mounted on core A555's In boss slot;Core D558 is mounted in the cored hole 5511 of fixed core.
Further include die sinking order controller, the die sinking order controller includes pull rod as shown in Figure 14 to Figure 16 104, inserted link 103, spacer pin 105 and limit base;The limit base is equipped with jack, and the side of jack is equipped with limit hole 1021, Limit hole 1021 is kidney slot, in limit hole 1021 activity spacer pin 105 is housed;One end activity of the pull rod 104 is inserted in slotting In hole, one end of pull rod 104 is equipped with upper ejector pin inclined-plane 1042 and limiting slot 1043, and upper ejector pin inclined-plane 1042 pushes spacer pin 105 The sliding in limit hole 1021,105 active card of spacer pin is in limiting slot 1043;One end activity of the inserted link 103 is inserted in slotting In hole, one end of inserted link 103 is equipped with lower ejector pin inclined-plane 1031, and lower ejector pin inclined-plane 1031 pushes spacer pin 105 in limit hole 1021 Interior sliding.
The limit base includes locking bed 101 and locking bottom plate 102;The locking bed 101 is equipped with slot 1011, locking Bottom plate 102 is equipped with limit hole 1021;Locking bed 101 is fixed on locking bottom plate 102, limit hole 1021 and 1011 phase of slot It is logical;The locking bed 101 is equipped with pin hole, and there are two pin hole is set, pin hole is located at the both sides of slot 1011, wherein One pin hole is located at 101 center of locking bed, another pin hole is located at one end of locking bed 101;On the locking bottom plate 102 Equipped with the through-hole to match with pin hole;The top of the pull rod 104, which is equipped with, is inserted into inclined-plane 1041;The limiting slot 1043 is arc Shape slot.
Bottom of the pot upper mold core 51, connecting seat Loose core block 54, flowline core_pulling pole 542, bottom of the pot side form core 52, bottom of the pot oil return side form Core 53, bottom of the pot lower mold core 55, oil return pipe core_pulling pole 534, oil return pipe upper mold section 512 and oil return pipe female die 554 are combined shape At bottom of the pot cavity, one-pass molding is realized.
Connecting seat Loose core block 54 is obliquely installed, and be slidably installed fall in love with it is conveniently stripped on die holder 1.In connecting seat Loose core block 54 The one-pass molding of connecting seat and flowline is realized equipped with flowline core_pulling pole 542.Flowline core_pulling pole 542 is mounted on connecting seat Make simple in structure, the difficulty of processing for reducing connecting seat is separately provided in flowline core_pulling pole 542, reduces processing cost, and make Mold is safeguarded and repairs a die conveniently, and reduction use cost is realized.
Mounting hole core pulling column 522 is integrally formed with bottom of the pot side form core 52 avoids the surface of mounting hole from generating burr influence oil can Installation.
Location hole core_pulling pole 532, oil return pipe core_pulling pole 534 and oil return pipe shaped insert 535 reduce bottom of the pot oil return side form The difficulty of processing of core 53 reduces processing cost, and mold is made to safeguard and repair a die conveniently, realizes reduction use cost.
Oil return pipe core_pulling pole 534, oil return pipe shaped insert 535, oil return pipe upper mold section 512 and oil return pipe female die 554 are real The molding for having showed oil return pipe simplifies the structure of mold.
Sliding split cast mounting and pneumatic split cast mounting realize bottom of the pot side form core 52 and bottom of the pot oil return side form core 53 respectively Divide mould.
The connection hole forming for connecing oil pipe bottom is realized using intercommunicating pore core_pulling pole 553, avoids secondary operation, is realized primary Molding, reduces the production cost of bottom of the pot.
Since mold core intensity is high, high precision machining, bottom of the pot side form core 52 and 53 activity of bottom of the pot oil return side form core are inserted in bottom of the pot Accurate positioning is realized in side form core slot 513, ensures the stabilization of cavity.
If using two half modules and bottom of the pot lower mold core 55 coordinated, need to process precision in cope plate 2 and lower template 3 Higher locating slot or the high-precision positioning device of installation, avoid position in injection moulding process from shifting, lead to mold knot in this way Structure is complicated, and is got higher to the intensity requirement of cope plate 2 and lower template 3, and cope plate 2 and the volume and weight of lower template 3 are equal Larger, material cost is got higher, and processing cost greatly improves.
Opening sequence by controlling mold realizes demoulding, simplifies the structure of mold, reduces the use of auxiliary device.
Sliding panel 541 and sliding slot cover board realize the fixation of connecting seat Loose core block 54.Sliding slot cover board prevents connecting seat Loose core block 54 eject in clamping process middle slide plate slot 16.
Upper die holder 1 rises, and upper die holder 1 drives connecting seat Loose core block 54 to rise by sliding panel 541, connecting seat Loose core block 54 It is extracted out from connecting seat, the sliding in the skateboard slot 16 of upper die holder 1 of sliding panel 541 realizes that the inclination of connecting seat Loose core block 54 is taken out Go out.
Connecting seat Loose core block 54 is slidably matched with core pulling block 24, realizes lifting and the guiding of connecting seat Loose core block 54.By It is easy to process in 24 small volume of core pulling block, processing cost can be reduced, the inclined hole of the machining high-precision on cope plate 2 is avoided, So that the frictional force that inclined lift generates is born by core pulling block 24 simultaneously, avoid tiltedly taking out hole by connecting seat and bear, extends connecting seat Tiltedly take out the service life in hole, the stability for reducing maintenance time, reducing use cost, improving mold.
Inclined guide follows cope plate 2 to rise, and inclined guide pushes side form sliding block to the both sides of mold, and side form sliding block drives pot Bottom side mold core 52 and bottom of the pot oil return side form core 53 detach.
When cope plate 2 declines molding, the indentation slope driving sliding bevel of cope plate 2, side form sliding block is slided to mould inside Dynamic, bottom of the pot side form core 52 and bottom of the pot oil return side form core 53 mold.
If upper die holder 1 cannot first rise, connecting seat Loose core block 54 and flowline core_pulling pole 542 can draw bad bottom of the pot, pass through Mold the rise successively that order controller ensures upper die holder 1 and cope plate 2.

Claims (10)

1. a kind of injection mold of oil can bottom of the pot, which is characterized in that including bottom of the pot upper mold core (51), connecting seat Loose core block (54), Bottom of the pot side form core (52), bottom of the pot oil return side form core (53) and bottom of the pot lower mold core (55);
The bottom of the pot upper mold core (51) is fixed on cope plate (2), and the bottom of bottom of the pot upper mold core (51) is equipped with bottom of the pot cavity A (511) and hole is tiltedly taken out in bottom of the pot side form core slot (513), top equipped with connecting seat, and connecting seat tiltedly takes out hole and bottom of the pot cavity A (511) phase Logical, bottom of the pot upper mold core (51) is also equipped with oil return pipe upper mold section (512);
Connecting seat Loose core block (54) activity is inserted in connecting seat and tiltedly takes out in hole, and one end of connecting seat Loose core block (54) is slidably installed On upper die holder (1), flowline core_pulling pole (542) is housed in connecting seat Loose core block (54);
The side of the bottom of the pot side form core (52) is equipped with bottom of the pot cavity B (521) and mounting hole core pulling column (522);
The side of the bottom of the pot oil return side form core (53) is equipped with bottom of the pot cavity C (531), location hole core_pulling pole (532), oil return pipe and takes out Core bar (534) and oil return pipe shaped insert (535), oil return pipe core_pulling pole (534) are inserted in oil return pipe shaped insert (535), pot Bottom oil return side form core (53) is equipped with oil return pipe die hole (533), and oil return pipe die hole (533) is through-hole;
The bottom of the pot side form core (52) and bottom of the pot oil return side form core (53) activity are inserted in bottom of the pot side form core slot (513), bottom of the pot side Mold core (52) is connect with sliding split cast mounting, and bottom of the pot oil return side form core (53) is connect with pneumatic split cast mounting, slides split cast mounting It is installed in lower template (3) with pneumatic split cast mounting;
The bottom of the pot lower mold core (55) is fixed in lower template (3), and the top of bottom of the pot lower mold core (55) is equipped with bottom of the pot core (551) With bottom of the pot cast gate (552), on bottom of the pot core (551) activity intercommunicating pore core_pulling pole (553) is housed, it is also living in bottom of the pot lower mold core (55) Dynamic that oil return pipe female die (554) is housed, the bottom of bottom of the pot lower mold core (55) is equipped with bottom of the pot liftout hole (555), bottom of the pot liftout hole (555) thimble (68) is housed in;
One end of oil return pipe female die (554) is fixed on backing plate (61);
Intercommunicating pore core_pulling pole (553) is obliquely installed, and one end of intercommunicating pore core_pulling pole (553) is arranged with semicircle sliding groove (5531), semicircle sliding groove (5531) sliding is inserted on the arc sliding boss (5541) of intercommunicating pore pull rod (554), intercommunicating pore Pull rod (554) is fixed on thimble bottom plate (64);
Thimble (68) is fixed on thimble upper mounted plate (63);
Oil return pipe upper mold section (512) and oil return pipe female die (554) activity are inserted in the oil return pipe die of bottom of the pot oil return side form core (53) In hole (533);
The bottom of the pot upper mold core (51), connecting seat Loose core block (54), flowline core_pulling pole (542), bottom of the pot side form core (52), bottom of the pot Oil return side form core (53), bottom of the pot lower mold core (55), oil return pipe core_pulling pole (534), oil return pipe upper mold section (512) and oil return pipe lower half Mould (554) is combined to form bottom of the pot cavity;
Backing plate (61), thimble upper mounted plate (63), thimble bottom plate (64) and lower die holder are equipped with below lower template (3) successively (62), thimble upper mounted plate (63) and thimble bottom plate (64) are installed together, and are set between backing plate (61) and lower die holder (62) There are connecting plate (67), connecting plate (67) to be mounted on the both sides of thimble upper mounted plate (63);
Upper open-top spring (12) is housed between upper die holder (1) and cope plate (2), is equipped with down between lower template (3) and backing plate (61) Open-top spring (65);
When die sinking, upper die holder (1) rises under the action of upper open-top spring (12), and upper die holder (1) drives connecting seat Loose core block (54) connecting seat (935) of bottom of the pot (93) is skidded off, then lower template (3) rises under under the action of open-top spring (65), oil return Pipe female die (554) leaves the oil return pipe die hole (533) of bottom of the pot oil return side form core (53), then cope plate (2) and lower template (3) Separation, oil return pipe upper mold section (512) leave the oil return pipe die hole (533) of bottom of the pot oil return side form core (53), slide split cast mounting band Dynamic bottom of the pot side form core (52) detach with bottom of the pot lower mold core (55), then pneumatic split cast mounting drive bottom of the pot oil return side form core (53) and Bottom of the pot lower mold core (55) detaches, and last thimble upper mounted plate (63) and thimble bottom plate (64) rise jointly, and thimble (68) will Bottom of the pot (93) is detached from the bottom of the pot core (551) of bottom of the pot lower mold core (55).
2. a kind of injection mold of oil can bottom of the pot according to claim 1, which is characterized in that the connecting seat Loose core block (54) top is equipped with sliding panel (541), and sliding panel (541) is slidably mounted in the skateboard slot (16) of upper die holder (1), skateboard slot (16) top is equipped with sliding slot cover board.
3. a kind of injection mold of oil can bottom of the pot according to claim 1, which is characterized in that filled on the cope plate (2) There are core pulling block (24), connecting seat Loose core block (54) activity to be inserted on core pulling block (24).
4. a kind of injection mold of oil can bottom of the pot according to claim 1, which is characterized in that the sliding split cast mounting packet Include inclined guide (47), side form sliding block (41), gag lever post (44) and limit spring (45);
The inclined guide (47) is mounted on by guide rod fixed block (48) on cope plate (2);
The side form sliding block (41) is equipped with pilot hole (411), and inclined guide (47) activity is inserted in pilot hole (411), and side form is slided Block (41) is slidably mounted in lower template (3), the side of side form sliding block (41) respectively with bottom of the pot side form core (52) or bottom of the pot oil return Side form core (53) connects, and the other side is equipped with sliding bevel (412), sliding bevel (412) and the indentation inclined-plane phase on cope plate (2) Matching;
One end of the gag lever post (44) is fixed on the other side of side form sliding block (41), and gag lever post (44) activity is inserted in carrier base (43) on;
The limit spring (45) is inserted on gag lever post (44), and positioned at the other end and the carrier base (43) of gag lever post (44) it Between.
5. a kind of injection mold of oil can bottom of the pot according to claim 4, which is characterized in that the side form sliding block (41) The both sides of bottom are equipped with positive stop lug boss (413), and positive stop lug boss (413) is located between limit sliding shoe (49) and lower template (3), limit Position sliding shoe (49) is mounted in lower template (3);The side locating slot (414) of the side form sliding block (41), bottom of the pot side form core (52) and on bottom of the pot oil return side form core (53) it is equipped with positioning table (313), positioning table (313) is inserted in locating slot (414).
6. a kind of injection mold of oil can bottom of the pot according to claim 4, which is characterized in that the pneumatic split cast mounting packet Include cylinder (431), side form sliding block (41) and link block (432);The cylinder (431) is fixed in lower template (3), cylinder (431) piston rod is connect with link block (432), and link block (432) is mounted on the side of side form sliding block (41).
7. a kind of injection mold of oil can bottom of the pot according to claim 1, which is characterized in that the bottom of the pot lower mold core (55) Top be equipped with bottom of the pot air discharge duct, bottom of the pot air discharge duct around bottom of the pot core (551) setting;The bottom of the pot upper mold core (51), bottom of the pot It is equipped with cooling-water duct (205) in side form core (52), bottom of the pot oil return side form core (53) and bottom of the pot lower mold core (55).
8. a kind of injection mold of oil can bottom of the pot according to claim 1, which is characterized in that the bottom of the pot core (551) It is divided into fixed core, core A (555), core B (556), core C (557) and core D (558), fixed core and bottom of the pot lower die Core (55) is overall structure, and bottom of the pot lower mold core (55) is equipped with core slot (559), in core slot (559) equipped with core A (555), Core B (556) and core C (557), the bottom of core A (555), core B (556) and core C (557) are equipped with core boss, The core boss of core A (555) is mounted in the boss slot of lower mold core (55), and the core of core B (556) and core C (557) are convex Platform is in the boss slot of core A (555);Core D (558) is mounted in the cored hole (5511) of fixed core.
9. a kind of injection mold of oil can bottom of the pot according to claim 1, which is characterized in that further include die sinking sequential control Device, the die sinking order controller include pull rod (104), inserted link (103), spacer pin (105) and limit base;The limit Seat is equipped with jack, and the side of jack is equipped with limit hole (1021), and limit hole (1021) is kidney slot, is lived in limit hole (1021) It is dynamic that spacer pin (105) is housed;One end activity of the pull rod (104) is inserted in jack, and one end of pull rod (104) is equipped with upper ejector pin Inclined-plane (1042) and limiting slot (1043), upper ejector pin inclined-plane (1042) push spacer pin (105) sliding in limit hole (1021), Spacer pin (105) active card is in limiting slot (1043);One end activity of the inserted link (103) is inserted in jack, inserted link (103) One end be equipped with lower ejector pin inclined-plane (1031), lower ejector pin inclined-plane (1031) pushes spacer pin (105) sliding in limit hole (1021) It is dynamic.
10. a kind of injection mold of oil can bottom of the pot according to claim 9, which is characterized in that the limit base includes lock Tight seat (101) and locking bottom plate (102);The locking bed (101) is equipped with slot (1011), and locking bottom plate (102) is equipped with Limit hole (1021);Locking bed (101) is fixed on locking bottom plate (102), and limit hole (1021) is communicated with slot (1011);Institute It states locking bed (101) and is equipped with pin hole, there are two pin hole is set, pin hole is located at the both sides of slot (1011), wherein One pin hole is located at locking bed (101) center, another pin hole is located at one end of locking bed (101);The locking bottom plate (102) it is equipped with the through-hole to match with pin hole;The top of the pull rod (104), which is equipped with, is inserted into inclined-plane (1041);The limit Position slot (1043) is arc groove.
CN201810420940.4A 2018-05-04 2018-05-04 Injection mold at bottom of oilcan kettle Active CN108312445B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108312445B (en) * 2018-05-04 2024-02-27 思柏精密科技股份有限公司 Injection mold at bottom of oilcan kettle

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CN103419331A (en) * 2013-07-23 2013-12-04 浙江金特模具有限公司 Core pulling injection mold for manufacturing multi-inclined-hole products
CN106313448A (en) * 2016-10-31 2017-01-11 台州市黄岩坤泰模具有限公司 Side core-pulling anti-collision mechanism of injection mold cavity

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Publication number Priority date Publication date Assignee Title
CN108312445B (en) * 2018-05-04 2024-02-27 思柏精密科技股份有限公司 Injection mold at bottom of oilcan kettle

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Publication number Priority date Publication date Assignee Title
CN103112128A (en) * 2013-01-31 2013-05-22 台州市黄岩汉威塑料模具有限公司 Injection molding mould provided with overhead hook type part
CN103419331A (en) * 2013-07-23 2013-12-04 浙江金特模具有限公司 Core pulling injection mold for manufacturing multi-inclined-hole products
CN106313448A (en) * 2016-10-31 2017-01-11 台州市黄岩坤泰模具有限公司 Side core-pulling anti-collision mechanism of injection mold cavity

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108312445B (en) * 2018-05-04 2024-02-27 思柏精密科技股份有限公司 Injection mold at bottom of oilcan kettle

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