CN105397999A - Rack type pouring core-pulling die - Google Patents
Rack type pouring core-pulling die Download PDFInfo
- Publication number
- CN105397999A CN105397999A CN201510816758.7A CN201510816758A CN105397999A CN 105397999 A CN105397999 A CN 105397999A CN 201510816758 A CN201510816758 A CN 201510816758A CN 105397999 A CN105397999 A CN 105397999A
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- CN
- China
- Prior art keywords
- core
- seat
- dynamic model
- pulling
- gear
- 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.)
- Pending
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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
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a plastic machining die, and discloses a rack type pouring core-pulling die. The rack type pouring core-pulling die comprises a fixed die body and a movable die body, the fixed die body and the movable die body are buckled to form a closed die cavity, and a core-pulling base is further clamped between the fixed die body and the movable die body; a boss used for manufacturing a blind hole in an injection molding piece is arranged on the core-pulling base and extends into the die cavity; a rack is arranged at one section, far away from the die cavity, of the core-pulling base and meshed with a gear, a lug plate is welded to the movable die body, and the gear is connected to the lug plate in a rotational manner and moves along with the movable die body; and a locking device is installed on a rotating shaft of the gear. By means of the scheme, the gear and the rack are matched to do the core-pulling motion; compared with the pulling-out motion, the gear rotating operation is higher in controllability; and in this way, the stability in the core-pulling process is guaranteed, and deformation or damage of the injection molding piece is avoided.
Description
Technical field
The present invention relates to a kind of plastic machining mold.
Background technology
Injection moulding is a kind of method of industrial products production moulding.Product uses rubber injection mold and plastics injection moulding usually.Injection moulding also can divide injection mould platen press and casting die.Injection (mo(u)lding) machine (being called for short injector or injection machine) utilizes mould for plastics to make the main former of the plastic products of various shape thermoplastic or thermosetting material, and injection moulding is realized by injection machine and mould.Product is widely used in: the industry such as mobile phone, laptop computer, multiple plastic shell, communication, micro machine, computer, electrical equipment, electronics, toy, clock and watch, lamp decoration, locomotive.Injection mold is the instrument producing plasthetics, is also the instrument giving plasthetics complete structure and accurate dimension.A kind of processing method used when injection mo(u)lding is some complex-shaped parts of batch production, specifically refers to the material melted that is heated to inject die cavity by high pressure, after cooling curing, obtains formed products.
Along with the day by day maturation of injection molding technology, increasing plastic cement products can be produced by injection moulding, simultaneously also more and more higher to the requirement of mould, man-hour is added at present for having poroid moulding, mostly be adopt operation of loosing core, extend in die cavity by plug, plug is extracted out after the plastic rubber shaping in die cavity, namely obtain the moulding with hole, but add plug on original mould, be mostly to take extraction action, during owing to manually extracting out, speed is difficult to control, or causes plug to offset, and just shaping moulding is very easily out of shape and even damages.
Summary of the invention
The invention is intended to provide one to loose core stable, avoid the rack-and-pinion cast core-pulling die damaging moulding.
Rack-and-pinion cast core-pulling die in this programme, comprise fixed half and moving half, fixed half and moving half is interlocked and forms closed die cavity, is also folded with seat of loosing core between described fixed half and moving half, seat of loosing core is provided with the boss for making the blind hole on moulding, and this boss extends in die cavity; Described seat of loosing core is provided with tooth bar away from one end of die cavity, and the flank of tooth of this tooth bar is engaged with gear, dynamic model is welded with otic placode, described pinion rotation is connected on this otic placode, and the rotating shaft of gear is provided with locking device.
Beneficial effect: dynamic model and cover half fit, make cavity closed, cast fused solution is deposited in curing molding in die cavity, motor-driven gear rotates, gears meshing tooth bar carries out transmission, thus slides in the direction driving seat of loosing core to prolong away from die cavity, and the both sides of seat of loosing core and dynamic model, cover half contact and stepped up, so loose core, seat can slide between fixed half and moving half, the boss of loosing core on seat is stablized and shifts out; When boss shifts out die cavity completely, separated by fixed half and moving half, be arranged on the otic placode on dynamic model due to gear, remove so the seat that makes to loose core is followed together with dynamic model with gear, moulding exposes, and takes off moulding.Adopt the program, carry out loosing core action by the cooperation of gear and tooth bar, extraction action is compared in the operation that gear rotates, and controllability is stronger, so ensure that the stable of the process of loosing core, avoids occurring moulding distortion or damaged condition.
Further, also comprise cover half seat and dynamic model seat, described cover half is arranged on cover half seat, dynamic model is arranged on dynamic model seat, is connected with cylinder, passes through air cylinder driven between cover half seat and dynamic model seat, be device automation more, save manpower, the setting party of dynamic model seat the installation of cylinder.
Further, described dynamic model is provided with push rod, and this push rod extends to die cavity through dynamic model seat and dynamic model, promotes push rod, the moulding be bonded on dynamic model can be released, laborsaving.
Further, the end of described push rod is provided with handle, facilitates holding of push rod.
Further, described gear wheel face is provided with the rocking bar for manually rotating, and is convenient to manually operate the rotation of gear.
Accompanying drawing explanation
Fig. 1 is the structural representation of rack-and-pinion of the present invention cast core-pulling die embodiment.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: cover half 1, dynamic model 2, otic placode 21, push rod 22, seat 3 of loosing core, boss 31, cylinder 4, gear 5.
Embodiment is substantially as shown in Figure 1:
Rack-and-pinion cast core-pulling die in this programme, comprise cover half 1 and dynamic model 2, cover half 1 and dynamic model 2 are interlocked and form closed die cavity, seat 3 of loosing core has been clamped between cover half 1 and dynamic model 2, seat 3 of loosing core is sandwiched between dynamic model 2 and cover half 1, loosing core on seat 3, processing oil is for making the boss 31 of the blind hole on moulding, and this boss 31 extends in die cavity.
Seat 3 lower end of loosing core is welded with tooth bar, to be connected with a joggle gear 5 with this tooth bar, dynamic model 2 is welded with otic placode 21, gear 5 is connected on this otic placode 21 by rotating shaft, and move with dynamic model 2, the rotating shaft of gear 5 is provided with locking device, and locking device locking can prevent slip of loosing core, this locking device is made up of lock-screw and the sleeve being placed on rotating shaft outer end, and screw offsets through sleeve and rotating shaft surface and realizes locking.Cover half 1 is arranged on cover half seat, and dynamic model 2 is arranged on dynamic model seat, and cylinder 4 is arranged on cover half seat, and the output of cylinder 4 is connected with dynamic model seat, is driven by cylinder 4, is device automation more, saves manpower, the setting party of dynamic model seat the installation of cylinder 4.
Dynamic model 2 is inserted with push rod 22, this push rod 22 extends to die cavity through dynamic model seat and dynamic model 2, promotes push rod 22, the moulding be bonded on dynamic model 2 can be released, laborsaving.The end of push rod 22 is provided with handle, facilitates holding of push rod 22.Gear 5 wheel face being provided with the rocking bar for manually rotating, being convenient to manually operate the rotation of gear 5.
Operation principle: dynamic model 2 and cover half 1 fit, make cavity closed, cast fused solution is deposited in curing molding in die cavity, motor-driven gear 5 rotates, gear 5 pinion rack carries out transmission, thus slides in the direction driving seat 3 of loosing core to prolong away from die cavity, and the both sides of seat 3 of loosing core and dynamic model 2, cover half 1 contact and stepped up, so loose core, seat 3 can slide between cover half 1 and dynamic model 2, the boss 31 of loosing core on seat 3 is stablized and shifts out; When boss 31 shifts out die cavity completely, by cover half 1 and dynamic model 2 separately, be arranged on the otic placode 21 on dynamic model 2 due to gear 5, remove so the seat 3 that makes to loose core is followed together with dynamic model 2 with gear 5, moulding exposes, and takes off moulding.Carry out loosing core action by the cooperation of gear 5 and tooth bar, extraction action is compared in the operation that gear 5 rotates, and controllability is stronger, so ensure that the stable of the process of loosing core, avoids occurring moulding distortion or damaged condition.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (5)
1. a rack-and-pinion cast core-pulling die, comprise fixed half and moving half, fixed half and moving half is interlocked and forms closed die cavity, it is characterized in that: be also folded with seat of loosing core between described fixed half and moving half, seat of loosing core is provided with the boss for making the blind hole on moulding, and this boss extends in die cavity; Described seat of loosing core is provided with tooth bar away from one end of die cavity, and the flank of tooth of this tooth bar is engaged with gear, dynamic model is welded with otic placode, described pinion rotation is connected on this otic placode, and the rotating shaft of gear is provided with locking device.
2. rack-and-pinion cast core-pulling die according to claim 1, it is characterized in that: also comprise cover half seat and dynamic model seat, described cover half is arranged on cover half seat, and dynamic model is arranged on dynamic model seat, is connected with cylinder between cover half seat and dynamic model seat.
3. rack-and-pinion cast core-pulling die according to claim 2, it is characterized in that: described dynamic model is provided with push rod, this push rod extends to die cavity through dynamic model seat and dynamic model.
4. rack-and-pinion cast core-pulling die according to claim 3, is characterized in that: the end of described push rod is provided with handle.
5. rack-and-pinion cast core-pulling die according to claim 4, is characterized in that: described gear wheel face is provided with the rocking bar for manually rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816758.7A CN105397999A (en) | 2015-11-23 | 2015-11-23 | Rack type pouring core-pulling die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816758.7A CN105397999A (en) | 2015-11-23 | 2015-11-23 | Rack type pouring core-pulling die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105397999A true CN105397999A (en) | 2016-03-16 |
Family
ID=55463915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510816758.7A Pending CN105397999A (en) | 2015-11-23 | 2015-11-23 | Rack type pouring core-pulling die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105397999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109571881A (en) * | 2018-11-26 | 2019-04-05 | 常州大学 | Intelligent side core-pulling mechanism |
-
2015
- 2015-11-23 CN CN201510816758.7A patent/CN105397999A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109571881A (en) * | 2018-11-26 | 2019-04-05 | 常州大学 | Intelligent side core-pulling mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |