CN105397985A - Plastic cement pouring molding die - Google Patents
Plastic cement pouring molding die Download PDFInfo
- Publication number
- CN105397985A CN105397985A CN201510816393.8A CN201510816393A CN105397985A CN 105397985 A CN105397985 A CN 105397985A CN 201510816393 A CN201510816393 A CN 201510816393A CN 105397985 A CN105397985 A CN 105397985A
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- CN
- China
- Prior art keywords
- die cavity
- wedge
- cavity
- die
- dynamic model
- 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.)
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Classifications
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- 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
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- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a plastic machining die, and discloses a plastic cement pouring molding die. The plastic cement pouring molding die comprises a fixed die body and a movable die body, the fixed die body and the movable die body are oppositely attached to form a die cavity, a pouring opening is formed in the die cavity, and the movable die body and the fixed die body are connected through an air cylinder; a cylinder base and the output end of the air cylinder are connected with the fixed die body and the movable die body respectively, an upper sliding base and a lower sliding base are arranged above and below the die cavity and connected to the movable die body in a sliding manner, and an upper gear and a lower gear are hinged to the upper sliding base and the lower sliding base respectively; an upper inclined rack and a lower inclined rack which are correspondingly arranged on the fixed die body are meshed with the upper gear and the lower gear respectively, an upper die cavity plug and a lower die cavity plug are plugged into openings in the side face of the die cavity, and a pushing rod is arranged on a face opposite to the pouring opening in the die cavity, penetrates the movable die body and extends into the die cavity. According to the scheme, as for the problem that a thin pouring rod-shaped cast is prone to breakage, demolding is carried in three directions at the same time, stress concentration on the surface of the cast is reduced, and breakage caused during workpiece demolding is effectively avoided.
Description
Technical field
The present invention relates to 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, and simultaneously also more and more higher to the requirement of mould, mould is generally divided into dynamic model and cover half, treats that foundry goods is shaping, and dynamic model moves opens die cavity, is exposed by foundry goods and then takes off; For the shaft-like foundry goods that some are thinner, if simple employing dynamic model positioned opposite and the cover half demoulding, foundry goods unbalance stress can be made, easily cause casting deformation to be torn or directly rupture.
Summary of the invention
The invention is intended to provide a kind of avoids very thin foundry goods to deform the plastic cement form mould of fracture.
Plastic cement form mould in this programme, comprise fixed half and moving half, described fixed half and moving half is fitted formation die cavity relatively, die cavity is provided with sprue gate, described dynamic model and cover half are connect by cylinders, the cylinder seat of cylinder and output are respectively and cover half, dynamic model is connected, die cavity upper, below is respectively equipped with upper saddle and lower slider, upper saddle and lower slider are all slidably connected on dynamic model, upper saddle and lower slider are hinged with respectively and cog and lower gear, the corresponding upper helical rack be provided with on cover half, lower helical rack respectively and cog, lower gear engages, upper saddle and lower slider are respectively equipped with upper cavity plug and lower mode cavity plug near one end of die cavity, described upper cavity plug and the shutoff of lower mode cavity plug are being located in the opening on die cavity side, the face that die cavity upper mouth is relative is provided with push rod, push rod passes dynamic model and extends in die cavity.
Beneficial effect: cast starts, dynamic model and cover half close, and upper saddle and lower slider push against to die cavity direction, upper cavity plug and lower mode cavity plug is made to block opening on die cavity side, mould-injection fused solution is watered in die cavity, to be cast shaping after, start cylinder and push dynamic model open, dynamic model and cover half are laterally separately, upper helical rack, lower helical rack promotes on upper saddle and lower slider, lower slider, the cooperation of rack and pinion makes stressed more rationally even, upper cavity plug and lower mode cavity plug and die cavity are separately, realize the demoulding on workpiece three directions, make stress dispersion suffered by workpiece, not easy fracture, so the demoulding is stablized feasible more, when the demoulding completes, now workpiece is still bonded on dynamic model, promotes push rod, is ejected by workpiece, workpiece is come off.Such scheme is for the problem of the thinner shaft-like foundry goods easy fracture of cast, and by the demoulding simultaneously on three directions, the stress reducing cast(ing) surface is concentrated, and makes the demoulding of foundry goods more stable, effectively avoids rupturing during the workpiece demoulding.
Further, the upper and lower of described upper saddle and lower slider is respectively equipped with wedge and lower wedge, upper wedge, lower wedge are provided with and described upper helical rack, inclined-plane that lower helical rack gradient is identical, upper saddle, lower slider are respectively equipped with and inclined-plane that upper wedge, lower wedge inclined-plane fit.Wedge and lower wedge are set, certain supporting role can be played to upper saddle, lower slider, upper saddle, lower slider are slided more stable, so increase mold releasability reliability.
Further, described upper saddle, lower slider are provided with boss near one end of upper cavity plug, lower mode cavity plug, and this boss is sandwiched in the stopper slot being located at die cavity outside, carries out spacing to boss, prevent upper cavity plug, lower mode cavity plug from offseting, cannot opening on shutoff die cavity side.
Further, described push rod is connected with slide block away from one end of die cavity, dynamic model is laterally provided with slide bar, slide bar makes slide block slide on slide bar through slide block, and slide block is provided with away from the side of die cavity the baffle plate limiting slide position, and slide bar leads to push rod, push rod is made to move steadily, the movement of baffle plate to push rod is spacing, and make push rod release end and just go out die cavity, the drive end of push rod reaches baffle position.
Further, described upper wedge and lower wedge are connected on cover half respectively by bolt, and cross bar bolt is connected on dynamic model, and bolt connects reliable, and detachably, is convenient to dismounting.
Accompanying drawing explanation
Fig. 1 is the structural representation of plastic cement form Die Embodiment of the present invention.
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, upper wedge 11, lower wedge 12, upper helical rack 13, lower helical rack 14, dynamic model 2, push rod 21, die cavity 3, upper saddle 31, lower slider 32, cylinder 4.
Embodiment is substantially as shown in Figure 1:
Plastic cement form mould in this programme, comprise cover half 1 and dynamic model 2, cover half 1 laminating relative to dynamic model 2 forms die cavity 3, die cavity 3 has sprue gate, dynamic model 2 is connected by cylinder 4 with cover half 1, the cylinder seat of cylinder 4 is connected with cover half 1, dynamic model 2 respectively with output, and the upper and lower of cover half 1, dynamic model 2 is separately installed with cylinder 4.
Die cavity 3 upper, below is separately installed with upper saddle 31 and lower slider 32, upper saddle 31 and lower slider 32 are slidably mounted on dynamic model 2, upper saddle 31 and lower slider 32 are hinged with respectively and cog and lower gear, on cover half 1, correspondence is provided with fixing upper helical rack 13, lower helical rack 14 and cogging, lower gear engages, upper saddle 31 and lower slider 32 are processed with upper cavity plug and lower mode cavity plug respectively near one end of die cavity 3, in upper cavity plug and the opening of lower mode cavity plug shutoff on die cavity 3 side, the face that die cavity 3 upper mouth is relative is provided with push rod 21, push rod 21 passes dynamic model 2 and extends in die cavity 3.
The upper and lower of upper saddle 31 and lower slider 32 is separately installed with fixing upper wedge 11 and lower wedge 12, processing oil and described upper helical rack 13 on upper wedge 11, lower wedge 12, the inclined-plane that lower helical rack 14 gradient is identical, upper saddle 31, lower slider 32 are respectively equipped with and inclined-plane that upper wedge 11, lower wedge 12 inclined-plane fit.Wedge 11 and lower wedge 12 are set, supporting role that can be certain to upper saddle 31, lower slider 32, make upper saddle 31, lower slider 32 slides more stable, so increase mold releasability reliability.Upper saddle 31, lower slider 32 are processed with boss near one end of upper cavity plug, lower mode cavity plug, and this boss is sandwiched in the stopper slot of die cavity 3 outside, carries out spacing to boss, prevent upper cavity plug, lower mode cavity plug from offseting, cannot opening on shutoff die cavity 3 side.
The left end of push rod 21 is connected with slide block, dynamic model 2 is horizontally installed with slide bar, slide bar makes slide block slide on slide bar through slide block, slide block is provided with away from the side of die cavity 3 baffle plate limiting slide position, slide bar leads to push rod 21, and push rod 21 is moved steadily, and the movement of baffle plate to push rod 21 is spacing, make push rod 21 release end and just go out die cavity 3, the drive end of push rod 21 reaches baffle position.Upper wedge 11 and lower wedge 12 are connected on cover half 1 respectively by bolt, and cross bar bolt is connected on dynamic model 2, and bolt connects reliable, and detachably, is convenient to dismounting.
Operation principle: cast starts, dynamic model 2 and cover half 1 close, and upper saddle 31 and lower slider 32 push against to die cavity 3 direction, upper cavity plug and lower mode cavity plug is made to block opening on die cavity 3 side, mould-injection fused solution is watered in die cavity 3, to be cast shaping after, start cylinder 4 and push dynamic model 2 open, dynamic model 2 and cover half 1 are laterally separately, upper helical rack 13, lower helical rack 14 promotes on upper saddle 31 and lower slider 32, lower slider, the cooperation of rack and pinion makes stressed more rationally even, upper cavity plug and lower mode cavity plug and die cavity 3 are separately, realize the demoulding on workpiece three directions, make stress dispersion suffered by workpiece, not easy fracture, so the demoulding is stablized feasible more, when the demoulding completes, now workpiece is still bonded on dynamic model 2, promotes push rod 21, is ejected by workpiece, workpiece is come off.
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 plastic cement form mould, comprise fixed half and moving half, described fixed half and moving half is fitted formation die cavity relatively, die cavity is provided with sprue gate, it is characterized in that: described dynamic model and cover half are connect by cylinders, the cylinder seat of cylinder and output are respectively and cover half, dynamic model is connected, die cavity upper, below is respectively equipped with upper saddle and lower slider, upper saddle and lower slider are all slidably connected on dynamic model, upper saddle and lower slider are hinged with respectively and cog and lower gear, the corresponding upper helical rack be provided with on cover half, lower helical rack respectively and cog, lower gear engages, upper saddle and lower slider are respectively equipped with upper cavity plug and lower mode cavity plug near one end of die cavity, described upper cavity plug and the shutoff of lower mode cavity plug are being located in the opening on die cavity side, the face that die cavity upper mouth is relative is provided with push rod, push rod passes dynamic model and extends in die cavity.
2. plastic cement form mould according to claim 1, it is characterized in that: the upper and lower of described upper saddle and lower slider is respectively equipped with wedge and lower wedge, upper wedge, lower wedge are provided with and described upper helical rack, inclined-plane that lower helical rack gradient is identical, upper saddle, lower slider are respectively equipped with and inclined-plane that upper wedge, lower wedge inclined-plane fit.
3. plastic cement form mould according to claim 2, is characterized in that: described upper saddle, lower slider are provided with boss near one end of upper cavity plug, lower mode cavity plug, and this boss is sandwiched in the stopper slot being located at die cavity outside.
4. plastic cement form mould according to claim 3, it is characterized in that: described push rod is connected with slide block away from one end of die cavity, dynamic model is laterally provided with slide bar, and slide bar makes slide block slide on slide bar through slide block, and slide block is provided with away from the side of die cavity the baffle plate limiting slide position.
5. plastic cement form mould according to claim 4, is characterized in that: described upper wedge and lower wedge are connected on cover half respectively by bolt, and cross bar bolt is connected on dynamic model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816393.8A CN105397985A (en) | 2015-11-23 | 2015-11-23 | Plastic cement pouring molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816393.8A CN105397985A (en) | 2015-11-23 | 2015-11-23 | Plastic cement pouring molding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105397985A true CN105397985A (en) | 2016-03-16 |
Family
ID=55463902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510816393.8A Pending CN105397985A (en) | 2015-11-23 | 2015-11-23 | Plastic cement pouring molding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105397985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561690A (en) * | 2019-08-22 | 2019-12-13 | 珠海格力精密模具有限公司 | Method, structure and equipment for eliminating thermal expansion gap of plastic mold |
-
2015
- 2015-11-23 CN CN201510816393.8A patent/CN105397985A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561690A (en) * | 2019-08-22 | 2019-12-13 | 珠海格力精密模具有限公司 | Method, structure and equipment for eliminating thermal expansion gap of plastic mold |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |