CN109466030B - One-die multi-piece secondary ejection mechanism - Google Patents
One-die multi-piece secondary ejection mechanism Download PDFInfo
- Publication number
- CN109466030B CN109466030B CN201910015442.6A CN201910015442A CN109466030B CN 109466030 B CN109466030 B CN 109466030B CN 201910015442 A CN201910015442 A CN 201910015442A CN 109466030 B CN109466030 B CN 109466030B
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- China
- Prior art keywords
- plate
- die
- push plate
- end part
- push
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- 230000007704 transition Effects 0.000 claims abstract description 15
- 238000001746 injection moulding Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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
-
- 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
-
- 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
- B29C2045/2683—Plurality of independent mould cavities in a single mould
-
- 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
- B29C2045/4084—Progressive ejection
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a one-die multi-piece secondary ejection mechanism which comprises a front die and a rear die, wherein the front die comprises a front die holder and a front die plate, the rear die comprises a rear die holder and a rear die transition plate, a push plate mounting plate is arranged in the rear die transition plate, a push plate is arranged on the push plate mounting plate, a movable die base plate is arranged on the rear die transition plate, a guide hole is arranged on the movable die base plate, a hollow jacking pipe is arranged in the guide hole, a core is sleeved at the upper end part of the jacking pipe, the core is positioned in a step hole of the rear die plate above the movable die base plate, a thimble is arranged in the jacking pipe, the bottom end part of the jacking pipe is arranged on the push plate, the bottom end of the jacking pipe is positioned at the lower end part of the thimble, a limiting block is arranged at the bottom end part of the jacking pipe, a spring is sleeved on the jacking pipe between the limiting block and the movable die base plate, and a strong spring is sleeved on the thimble between the bottom end of the jacking pipe and the push plate. The invention has reasonable structural design, adopts the secondary ejection mechanism, has lower cost, multiple parts in one die, high efficiency, good quality, convenient operation and high product efficiency.
Description
Technical field:
The invention relates to the field of injection mold manufacturing, in particular to a one-mold multi-piece secondary ejection mechanism.
The background technology is as follows:
After the product is molded, the traditional injection mold adopts a push rod, and the ejector block or the top plate ejects the molded part from the mold at one time, so that the demolding of the product is realized. However, for some injection molding parts with complex structures and precise dimensions, if ejection is adopted for 1 time, the injection molding part can deform or break; some products have back-off, and cannot adopt lateral core pulling, and only elastic deformation of injection molding parts can be used for forced demolding. The demolding of these injection molded parts is not possible or does not meet the product quality requirements depending on one ejection.
The invention comprises the following steps:
The invention aims to make up the defects of the prior art and provides a one-die multi-piece secondary ejection mechanism which has the advantages of multiple pieces per die, high efficiency, good quality, simplicity and convenience by adopting a secondary ejection principle.
The invention is realized by the following technical scheme:
A mould many secondary ejection mechanism, including front mould, back mould, its characterized in that: the front mould is including the front mould base, the front mould board is installed to the below of front mould base, the back mould is including the back mould base, install back mould transition board on the back mould base, install the push pedal mounting panel in the back mould transition board, install the push pedal on the push pedal mounting panel, install the movable mould backing plate on the back mould transition board, be equipped with the guiding hole on the movable mould backing plate, install hollow push pipe in the guiding hole, the upper end cover of push pipe is equipped with the core, the core is located the step hole of movable mould backing plate top back mould board, install the thimble in the push pipe, the upper end of push pipe of thimble stretches out the push pipe and is located the ejecting hole of core, the bottom of push pipe is installed in the push pedal, the bottom of push pipe is located the lower tip of thimble, and installs the stopper in the bottom of push pedal, the cover between stopper and the movable mould backing plate is equipped with the spring, the cover is equipped with powerful spring on the thimble between push pipe bottom and the push pedal.
The front die holder and the front die plate are respectively provided with corresponding mounting holes, the mounting holes are fixedly connected together through bolts, and the rear die holder, the rear die transition plate, the movable die base plate and the rear die plate are respectively provided with fixing holes for mounting and communicating and are connected together through fixing bolts.
The rear template is also provided with a guide post, the front template is provided with a through hole matched with the guide post, and the through hole is internally provided with a guide sleeve.
A certain gap is arranged between the lower end face of the push plate mounting plate and the upper end face of the rear die holder, the push plate mounting plate is jacked up through bolt rods on two sides, and the lower end parts of the bolt rods are arranged in positioning holes on the rear die holder.
The push plate mounting plate and the push plate are respectively provided with through holes corresponding to each other, a guide sleeve is arranged in the through holes, a guide rod is arranged in the guide sleeve, and the bottom end part of the guide rod is positioned in the through hole of the rear die holder.
The upper end part of the spring on the jacking pipe is positioned in the step hole at the bottom end part of the movable mould cushion plate.
The middle parts of the push plate, the movable die base plate and the rear template are provided with communicated center holes, a central shaft is installed in the center holes, the upper end part of the central shaft is positioned below the horizontal plane of the rear template core, and the lower end of the central shaft is fixed at the step part of the bottom end of the center hole in the middle of the push plate through a step.
The structure can enable the injection mold to form various injection molding parts with complex structures and precise sizes at one time, the machine tool ejector rod pushes the push plate mounting plate, the push plate mounting plate drives the push plate to move forwards, the push plate fixing screw fixes the push plate ejector rod on the push plate mounting plate and is connected into a whole, the push plate guide sleeve is arranged on the push plate and the push plate mounting plate, and the linkage function of the push plate and the push plate mounting plate is realized; the ejector pin is fixed on the push plate through a screw, the strong spring is sleeved in the ejector pin, the ejector pipe and the ejector pin simultaneously eject the plastic part, and the first demoulding function is completed; the plastic part is pulled out of the cavity; when the limiting block touches the movable die base plate, the push plate is driven by the push plate mounting plate to move forwards, the plastic part deforms under the forced ejection force of the ejector pin, and is taken off from the core (i.e. the push plate) to complete secondary ejection.
The invention has the advantages that:
The invention has reasonable structural design, adopts the secondary ejection mechanism, has lower cost, multiple parts in one die, high efficiency, good quality, convenient operation and high product efficiency, and meets the requirements of mass injection molding processing production.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
The specific embodiment is as follows:
see the drawings.
The utility model provides a many secondary ejection mechanism of a mould, is including front mould, back mould, the front mould is including front mould base 1, front mould board 2 is installed to the below of front mould base 1, the back mould is including back mould base 8, install back mould transition board 5 on the back mould base 8, install push pedal mounting panel 7 in the back mould transition board 5, install push pedal 6 on the push pedal mounting panel 7, install movable mould pad board 4 on the back mould transition board 5, be equipped with the guiding hole on the movable mould pad board 4, install hollow push pipe 20 in the guiding hole, the upper end cover of push pipe 20 is equipped with core 21, core 21 is located the step hole of movable mould pad board 3 behind the top, install thimble 19 in the push pipe 20, the upper end of thimble 20 stretches out 20 and is arranged in the ejecting hole of core 21, the bottom of push pedal 20 is installed in 6, the bottom of push pedal 20 is arranged in the lower tip of 19, and the bottom of 20 installs the stopper 16, the top of push pedal 20 is equipped with between stopper 16 and the top spring 15 of movable mould pad 4, the top spring 15 is equipped with.
The front die holder 1 and the front die plate 2 are respectively provided with corresponding mounting holes, which are fixedly connected together through bolts 26, and the rear die holder 8, the rear die transition plate 5, the movable die backing plate 4 and the rear die plate 3 are respectively provided with fixing holes for mounting and communicating, and are connected together through fixing bolts 9.
The rear template 3 is also provided with a guide post 22, the front template 2 is provided with a through hole matched with the guide post, and a guide sleeve 23 is arranged in the through hole.
A certain gap is arranged between the lower end face of the push plate mounting plate 7 and the upper end face of the rear die holder, the push plate mounting plate is jacked up through bolt rods 10 on two sides, and the lower end part of the bolt rod 10 is arranged in a positioning hole on the rear die holder.
The push plate mounting plate 7 and the push plate 6 are respectively provided with through holes corresponding to each other, a guide sleeve 12 is arranged in the through holes, a guide rod 11 is arranged in the guide sleeve 12, and the bottom end part of the guide rod 11 is positioned in the through hole of the rear die holder.
The upper end part of the spring 17 on the jacking pipe 20 is positioned in a step hole at the bottom end part of the movable die cushion plate 4.
The middle parts of the push plate 7, the movable mould base plate 4 and the rear mould plate 3 are provided with communicated center holes, a center shaft 18 is arranged in each center hole, the upper end part of the center shaft 18 is positioned below the horizontal plane of the rear mould plate core, and the lower end of the center shaft 18 is fixed at the step part of the bottom end of the center hole in the middle of the push plate through a step.
The push plate 6 is fixed on the push plate mounting plate 7 by the push plate fixing screw 14 and is connected into a whole, and the push plate guide sleeve 12 is arranged on the push plate 6 and the push plate mounting plate 7 to realize the linkage function of the push plate 6 and the push plate mounting plate 7; the ejector pin 19 is fixed on the push plate 6 through the screw 13, the strong spring is sleeved in the ejector pin 19, the push plate 20 and the ejector pin 19 push a plastic part at the same time, the first demolding function is completed, the limiting block 16 and the spring 17 are sleeved in the ejector pin, the push plate 20 is sleeved in the core 21, after the movable die backing plate 4 is installed, the push plate 20 stops moving when the limiting block 16 contacts the movable die backing plate 4, the push plate mounting plate 7 drives the push plate 6 to move continuously, the plastic part deforms under the forced ejection force of the ejector pin 19, and the plastic part is removed from the core 21 (namely the push plate) to complete the secondary ejection function.
Because the effect of powerful spring makes push pipe and thimble push up simultaneously and move the piece of moulding, accomplishes first drawing of patterns, because the stopper runs into the movable mould backing plate, the push pedal mounting panel drives the push pedal and continues to move, moulds the piece and takes place deformation under the forced ejection force effect of thimble, takes off from the core (i.e. push pipe), accomplishes the secondary ejecting, and a mould is many, and is efficient, and is of high quality moreover, simple and easy convenient.
Claims (1)
1. A mould many secondary ejection mechanism, including front mould, back mould, its characterized in that: the front die comprises a front die holder, a front die plate is arranged below the front die holder, the rear die comprises a rear die holder, a rear die transition plate is arranged on the rear die holder, a push plate mounting plate is arranged in the rear die transition plate, a push plate is arranged on the push plate mounting plate, a movable die backing plate is arranged on the rear die transition plate, a guide hole is formed in the movable die backing plate, a hollow top pipe is arranged in the guide hole, a core is sleeved at the upper end part of the top pipe, the core is positioned in a step hole of the rear die plate above the movable die backing plate, a thimble is arranged in the top pipe, the upper end part of the top pipe of the thimble extends out of the top pipe and is positioned in an ejection hole of the core, the bottom end part of the top pipe is arranged on the push plate, the bottom end part of the top pipe is positioned at the lower end part of the thimble, a limiting block is arranged at the bottom end part of the top pipe, a spring is sleeved between the limiting block and the movable die backing plate, and a strong spring is sleeved on the top pipe between the bottom end of the top pipe and the push plate;
The front die holder and the front die plate are respectively provided with mounting holes corresponding to each other, the mounting holes are fixedly connected together through bolts, and the rear die holder, the rear die transition plate, the movable die base plate and the rear die plate are respectively provided with fixing holes for mounting and communicating and are connected together through fixing bolts;
The rear template is also provided with a guide post, the front template is provided with a through hole matched with the guide post, and a guide sleeve is arranged in the through hole;
a certain gap is arranged between the lower end surface of the push plate mounting plate and the upper end surface of the rear die holder, the push plate mounting plate is jacked up through bolt rods on two sides, and the lower end parts of the bolt rods are arranged in positioning holes on the rear die holder;
the push plate mounting plate and the push plate are respectively provided with through holes which correspond to each other, a guide sleeve is arranged in the through holes, a guide rod is arranged in the guide sleeve, and the bottom end part of the guide rod is positioned in the through hole of the rear die holder;
The upper end part of the spring on the jacking pipe is positioned in a step hole at the bottom end part of the movable mould cushion plate;
The middle parts of the push plate, the movable die base plate and the rear template are provided with communicated center holes, a central shaft is installed in the center holes, the upper end part of the central shaft is positioned below the horizontal plane of the rear template core, and the lower end of the central shaft is fixed at the step part of the bottom end of the center hole in the middle of the push plate through a step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015442.6A CN109466030B (en) | 2019-01-08 | 2019-01-08 | One-die multi-piece secondary ejection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015442.6A CN109466030B (en) | 2019-01-08 | 2019-01-08 | One-die multi-piece secondary ejection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109466030A CN109466030A (en) | 2019-03-15 |
| CN109466030B true CN109466030B (en) | 2024-08-16 |
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ID=65678466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910015442.6A Active CN109466030B (en) | 2019-01-08 | 2019-01-08 | One-die multi-piece secondary ejection mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN109466030B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110406054A (en) * | 2019-08-29 | 2019-11-05 | 创维集团智能装备有限公司 | A kind of injection mold and its release method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1190959A (en) * | 1997-09-19 | 1999-04-06 | Aono Kogyo:Kk | Injection molding die |
| CN202412618U (en) * | 2011-10-25 | 2012-09-05 | 牟维军 | Mold mechanism with four ejector pin plates for ejecting product twice |
| CN209304912U (en) * | 2019-01-08 | 2019-08-27 | 慈溪市精展模具有限公司 | A kind of one-mold multiple-member secondary ejecting mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690912A (en) * | 2015-03-12 | 2015-06-10 | 韩立艳 | Built-in mold needle core pulling secondary ejection mechanism for plastic molds and mold thereof |
| CN205097475U (en) * | 2015-10-09 | 2016-03-23 | 中山市标一模具科技有限公司 | Area is secondary ejection mechanism on top to one side |
| CN205202043U (en) * | 2015-12-20 | 2016-05-04 | 黄俏嫦 | Side of release instrument case injection mould |
| CN108908873A (en) * | 2018-07-30 | 2018-11-30 | 昆山科达精密模具有限公司 | A kind of mold with Double-ejection forced stripper mechanism |
-
2019
- 2019-01-08 CN CN201910015442.6A patent/CN109466030B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1190959A (en) * | 1997-09-19 | 1999-04-06 | Aono Kogyo:Kk | Injection molding die |
| CN202412618U (en) * | 2011-10-25 | 2012-09-05 | 牟维军 | Mold mechanism with four ejector pin plates for ejecting product twice |
| CN209304912U (en) * | 2019-01-08 | 2019-08-27 | 慈溪市精展模具有限公司 | A kind of one-mold multiple-member secondary ejecting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109466030A (en) | 2019-03-15 |
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