CN104999629A - Small ejector pin ejection mechanism and injection mold with same - Google Patents
Small ejector pin ejection mechanism and injection mold with same Download PDFInfo
- Publication number
- CN104999629A CN104999629A CN201510335232.7A CN201510335232A CN104999629A CN 104999629 A CN104999629 A CN 104999629A CN 201510335232 A CN201510335232 A CN 201510335232A CN 104999629 A CN104999629 A CN 104999629A
- Authority
- CN
- China
- Prior art keywords
- thimble
- fairlead
- guide pad
- ejection mechanism
- little
- 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
-
- 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
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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 small ejector pin ejection mechanism. The small ejector pin ejection mechanism comprises a small injector pin, a fixing piece, a guide sleeve and a spring. The small ejector pin is vertically arranged on the fixing piece. The guide sleeve is vertically through, and an inner cavity is formed in the guide sleeve. The fixing piece is arranged in the inner cavity in a vertically moving mode. The fixing piece is sleeved with the spring which enables the fixing piece to keep the trend of moving upward all the time. The ejection mechanism is simple and reasonable in structure and compact in connection. The ejection stroke of the small ejector pin is limited and greatly reduced under the cooperation of the inner cavity of the guide sleeve and the fixing piece, so that the small ejector pin is effectively protected from being broken, the problem that the small injector pin needs to be frequently maintained or replaced is avoided, the service life of the small ejector pin is prolonged, and the service life of the product is prolonged to some degree. According to a mold with the ejection mechanism, the guide sleeve and a fixing plate are installed on the floor, and the small ejector pin and a large ejector pin cooperate with each other, so that the product has operating stability when disengaged from the mold, and the stability of production quality of the product is improved.
Description
Technical field
The present invention relates to the medium-and-large-sized technical field of mold of automobile, specifically refer to a kind of little thimble ejection mechanism, the invention still further relates to the injection mold that application has this little thimble ejection mechanism.
Background technology
Large thimble, little thimble all belong to the accessory in automobile injection mold, for being separated from mould by product in plastic mould.Generally consider load ability and the service life of little thimble, larger thimble can be selected when being ejected from mould by product as far as possible, and need carefully to calculate according to Design of Dies in advance to eject distance, in order to avoid cause product to be separated from mould smoothly because ejection stroke is not enough.
At present, in automobile die, in the medium-and-large-sized moulds such as bumper, instrument board, gusset, auxiliary fasia console, there are the needs many times owing to ejecting and being vented, need in mould structure to use diameter to be less than the little thimble of 5mm, and in whole ejection stroke of the prior art, little thimble can with push pedal campaign, and because ejection stroke is longer, little thimble easily fractures, need often maintenance or change, so not only have impact on die life, reduce production efficiency, also cause the production cost of product to increase.
Therefore, for the ejecting mechanism in current automobile injection mold, particularly injection mold, await doing further improvement.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, provide a kind of effectively can reduce little thimble ejection stroke, the little thimble of available protecting is by the little thimble ejection mechanism lost.
Another technical problem to be solved by this invention is the present situation for prior art, and provide a kind of application to have the injection mold of above-mentioned little thimble ejection mechanism, this mould effectively can improve the stability of separation of products.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of little thimble ejection mechanism, it is characterized in that: comprise little thimble, fixture, fairlead and spring, described little thimble is vertically arranged on fixture, described fairlead up/down perforation is also formed with an inner chamber, what described fixture can move up and down is located in this inner chamber, and described spring housing is located at fixture periphery and trend fixture being remained move upward.
As a further improvement on the present invention, described fixture comprises the fixed block that guide pad and dismountable type are connected to this guide pad top, the periphery of described guide pad has flange collar circumferentially, and the upper port place of described fairlead is formed and can blocks with above-mentioned flange collar the limited step preventing guide pad from departing from fairlead mutually.Adopt said structure, guide pad and fixed block are carried out dismountable type and is connected, be convenient to install or change little thimble; And utilize flange collar and limited step by spacing for guide pad in the inner chamber of fairlead, be convenient to the ejection stroke controlling and shorten little thimble, thus protect little thimble not lost.
Further, described ejecting mechanism also comprises fixed head, and described fairlead lower end is located on this fixed head, and the periphery of guide pad is located at by described spring housing and flange collar on this spring upper end and guide pad offsets, and the upper surface of described lower spring end and fixed head offsets.Said structure is set, is convenient to fixed guide cover on the one hand, on the other hand, is convenient to for spring provides the point of application.
Improve, described fixed block offers the first through hole that the little thimble of the confession of arranging vertically passes, this first through hole lower end is formed with first stopper slot that coordinate spacing with described little thimble lower end.Adopt this structure, for the assembling of little thimble is provided convenience.
In above-mentioned each scheme, correspondingly on described guide pad and fixed block offer the connecting hole passed for the first screw.Guide pad can be locked with fixed block through the connecting hole on guide pad and fixed block and is connected by the first screw, prevents little thimble from moving up and down on the one hand, on the other hand, is convenient to drive little thimble to move up and down when guide pad moves up and down.
For the ease of connecting, the top of described guide pad is provided with the alignment pin vertically arranged, corresponding, the bottom of described fixed block offers the slot inserted for alignment pin.The setting of said structure, the connection for guide pad and fixed block is located and is provided convenience.
A kind of application has the injection mold of above-mentioned ejecting mechanism, it is characterized in that: comprise floor, injection machine ejects rod, push pedal, needle plate, core, large thimble and ejecting mechanism, described floor is used for fixing ejecting mechanism and has ejecting for injection machine the second through hole that rod passes, described push pedal to be located at above floor and to be connected with the upper end that injection machine ejects rod, described needle plate is located in push pedal, correspondingly in described needle plate and push pedal offer the third through-hole passed for little thimble, described core is located at above needle plate and also and between needle plate is formed with ejection stroke, described large thimble is vertically located on needle plate, described core has the fourth hole passed for little thimble and the fifth hole passed for large thimble.
In such scheme, described floor bottoms has the first mounting groove for mounting plate, top, described floor has the second mounting groove for installing fairlead, this second mounting groove is connected with the first mounting groove, under assembling completion status, the upper port of the second mounting groove is exposed on the top of described fairlead.This structure is set, is convenient to ejecting mechanism to be fixed on mould, and syndeton between ejecting mechanism and mould is compact, firm.
As preferably, the lower end of described fairlead has spacing flange collar circumferentially, corresponding, the bottom of described second mounting groove forms the second stopper slot matched with spacing flange collar.This structure can prevent fairlead from moving up, and little thimble can be moved with fixture is stable.
In above-mentioned each preferred version, the lower surface of described push pedal offers and can detain the socket being located at fairlead top.
Compared with prior art, the invention has the advantages that:
Ejecting mechanism of the present invention is simple and reasonable, connect compact, the inner chamber of fairlead leads with fixture on the one hand and coordinates, being convenient to fixture drives little thimble to move up and down, on the other hand, the inner chamber of fairlead coordinates the ejection stroke defining little thimble with fixture, with be directly fixed on compared with little thimble structure consistent with large thimble ejection stroke in push pedal in prior art, the stroke of the medium and small thimble of the present invention reduces greatly, the little thimble of available protecting is not lost, avoid the problem that the medium and small thimble of prior art needs often maintenance or changes, improve the service life of little thimble, reduce the production cost of product to a certain extent, the present invention's application has in the mould of above-mentioned ejecting mechanism, and be arranged on floor by fairlead and fixed head, little thimble and large thimble cooperatively interact, thus make product stable when break away from moulds, improve the stability of production quality.
Accompanying drawing explanation
Fig. 1 is the exploded view of ejecting mechanism in the embodiment of the present invention;
Fig. 2 is the sectional view of ejecting mechanism in the embodiment of the present invention;
Fig. 3 is status architecture schematic diagram when mould closes in the embodiment of the present invention;
Fig. 4 is the status architecture schematic diagram of mould when little thimble has ejected in the embodiment of the present invention;
Fig. 5 is the status architecture schematic diagram of mould when product ejects completely in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1, 2, the little thimble ejection mechanism of the present embodiment comprises little thimble 1, fixture 2, fairlead 3, spring 4 and fixed head 5.
In the present embodiment, fixture 2 comprises the fixed block 22 that guide pad 21 and dismountable type are connected to this guide pad 21 top, fixed block 22 offers the first through hole 221 that the little thimble 1 of the confession of arranging vertically passes, little thimble 1 is vertically arranged on fixed block 22 through the first through hole 221, and the first through hole 221 lower end is formed with first stopper slot 222 that coordinate spacing with little thimble 1 lower end.Correspondingly on guide pad 21 and fixed block 22 offer the connecting hole passed for the first screw 100, the top of guide pad 21 is provided with the alignment pin 211 vertically arranged, corresponding, the bottom of fixed block 22 offers the slot 223 inserted for alignment pin 211.
As shown in Figure 2, fairlead 3 up/down perforation is also formed with an inner chamber 31, what fixture 2 can move up and down is located in this inner chamber 31, the periphery of guide pad 21 has flange collar 212 circumferentially, and the upper port place of fairlead 3 is formed and can prevents guide pad 21 from departing from the limited step 32 of fairlead 3 with above-mentioned flange collar 212 phase card.Spring 4 is sheathed on guide pad 21 periphery, and fairlead 3 lower end is located on fixed head 5, and the flange collar 212 on the upper end of spring 4 and guide pad 21 offsets, and the lower end of spring 4 and the upper surface of fixed head 5 offset, thus make fixture 2 remain the trend moved upward.
As seen in figures 3-5, in the present embodiment, application has the injection mold of above-mentioned ejecting mechanism to comprise floor A, injection machine ejects excellent B, push pedal C, needle plate D, core E, large thimble F and ejecting mechanism, floor A is used for fixing ejecting mechanism and has ejecting for injection machine the second through hole A1 that excellent B passes, push pedal C to be located at above the A of floor and to be connected with the upper end that injection machine ejects excellent B, needle plate D is located on push pedal C, on needle plate D and push pedal C, correspondence offers the third through-hole 200 passed for little thimble 1, core E is located at above needle plate D and also and between needle plate D is formed with total ejection stroke L, large thimble F is vertically located on needle plate D, core E has the fourth hole E1 passed for little the thimble 1 and fifth hole E2 passed for large thimble F.
As shown in Figure 3, there is bottom the A of floor the first mounting groove A2 for mounting plate 5, A top, floor has the second mounting groove A3 for installing fairlead 3, this second mounting groove A3 is connected with the first mounting groove A2, under assembling completion status, the upper port of the second mounting groove A3 is exposed on the top of fairlead 3.The lower end of fairlead 3 has spacing flange collar 33 circumferentially, corresponding, the bottom of the second mounting groove A3 forms the second stopper slot A31 matched with spacing flange collar 33.The lower surface of push pedal C offers the socket C1 that can detain and be located at fairlead 3 top.
Use ejecting mechanism and the mould of the present embodiment, during assembling, first upwards passed the lower end of the first through hole 221 on the upper end self-retaining block 22 of little thimble 1, the lower end to little thimble 1 snaps in the first stopper slot 222; Then the alignment pin 211 on guide pad 21 is inserted slot 223 inner position of fixed block 22, the first screw 100 is connected through the connecting hole locking on guide pad 21 and fixed block 22; Fixture 2 self-steering installing little thimble 1 is overlapped 3 lower ends to be installed in the inner chamber 31 of fairlead 3, and the outer peripheral face of fixed block 22 and the upper port of fairlead 3 match and can stretch out in this upper port; Spring 4 to be positioned in fairlead 3 and to be set in the periphery of guide pad 21, and fixed head 5 being connected to the lower end of fairlead 3 by bolt 400 locking; Finally be arranged on the A of floor by whole ejecting mechanism, make the top of fairlead 3 expose the upper surface of floor A, little thimble 1 is successively through push pedal C, needle plate D and core E.
Product 500 is positioned on core E, and before mould uses, as shown in Figure 3, the upper end of little thimble 1, large thimble F offsets with the lower surface of product 500 respectively; During use, injection machine ejects excellent B and moves upward push pedal C jack-up, needle plate D and large thimble F is along with moving up, now, fixture 2 moves upward thus drives little thimble 1 to move up under the elastic force effect of spring 4, as shown in Figure 4, until the flange collar 212 on guide pad 21 offsets with the limited step 32 of fairlead 3 upper port, little thimble 1 stops mobile; Along with injection machine ejects the movement of excellent B, large thimble F continues to move up, as shown in Figure 5, until deviate from core E completely by product 500; After product ejects, needle plate D and push pedal C moves down, and socket C1 and fixed block 22 upper surface of push pedal C offset and exert pressure downwards, as shown in Figure 3, ejecting mechanism are resetted.
Claims (10)
1. a little thimble ejection mechanism, it is characterized in that: comprise little thimble, fixture, fairlead and spring, described little thimble is vertically arranged on fixture, described fairlead up/down perforation is also formed with an inner chamber, what described fixture can move up and down is located in this inner chamber, and described spring housing is located at fixture periphery and trend fixture being remained move upward.
2. little thimble ejection mechanism according to claim 1, it is characterized in that: described fixture comprises the fixed block that guide pad and dismountable type are connected to this guide pad top, the periphery of described guide pad has flange collar circumferentially, and the upper port place of described fairlead is formed and can blocks with above-mentioned flange collar the limited step preventing guide pad from departing from fairlead mutually.
3. little thimble ejection mechanism according to claim 2, it is characterized in that: also comprise fixed head, described fairlead lower end is located on this fixed head, the periphery of guide pad is located at by described spring housing and flange collar on this spring upper end and guide pad offsets, and the upper surface of described lower spring end and fixed head offsets.
4. little thimble ejection mechanism according to claim 2, is characterized in that: described fixed block offers the first through hole that the little thimble of the confession of arranging vertically passes, and this first through hole lower end is formed with first stopper slot that coordinate spacing with described little thimble lower end.
5. little thimble ejection mechanism according to claim 2, is characterized in that: correspondingly on described guide pad and fixed block offer the connecting hole passed for the first screw.
6. the little thimble ejection mechanism according to claim arbitrary in claim 2 ~ 5, is characterized in that: the top of described guide pad is provided with the alignment pin vertically arranged, corresponding, the bottom of described fixed block offers the slot inserted for alignment pin.
7. an injection mold, it is characterized in that: comprise floor, injection machine ejects rod, push pedal, needle plate, core, large thimble and described ejecting mechanism, described floor is used for fixing ejecting mechanism and has ejecting for injection machine the second through hole that rod passes, described push pedal to be located at above floor and to be connected with the upper end that injection machine ejects rod, described needle plate is located in push pedal, correspondingly in described needle plate and push pedal offer the third through-hole passed for little thimble, described core is located at above needle plate and also and between needle plate is formed with ejection stroke, described large thimble is vertically located on needle plate, described core has the fourth hole passed for little thimble and the fifth hole passed for large thimble.
8. injection mold according to claim 7, it is characterized in that: described floor bottoms has the first mounting groove for mounting plate, top, described floor has the second mounting groove for installing fairlead, this second mounting groove is connected with the first mounting groove, under assembling completion status, the upper port of the second mounting groove is exposed on the top of described fairlead.
9. injection mold according to claim 8, is characterized in that: the lower end of described fairlead has spacing flange collar circumferentially, corresponding, the bottom of described second mounting groove forms the second stopper slot matched with spacing flange collar.
10. injection mold according to claim 9, is characterized in that: the lower surface of described push pedal offers and can detain the socket being located at fairlead top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510335232.7A CN104999629A (en) | 2015-06-16 | 2015-06-16 | Small ejector pin ejection mechanism and injection mold with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510335232.7A CN104999629A (en) | 2015-06-16 | 2015-06-16 | Small ejector pin ejection mechanism and injection mold with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999629A true CN104999629A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510335232.7A Pending CN104999629A (en) | 2015-06-16 | 2015-06-16 | Small ejector pin ejection mechanism and injection mold with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN104999629A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334692A (en) * | 2021-06-02 | 2021-09-03 | 重庆连成模具有限公司 | Notebook keyboard keycap mold and demolding and ejecting method |
| CN115091170A (en) * | 2022-06-23 | 2022-09-23 | 浙江万丰精密制造有限公司 | Combined type jet pin installation mechanism with air guide function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201271999Y (en) * | 2008-12-16 | 2009-07-15 | 宁波远东制模有限公司 | Ejection device of injection mold |
| CN102059784A (en) * | 2010-11-05 | 2011-05-18 | 宁波如强模塑有限公司 | Secondary ejection device of pneumatic slide core sleeve |
| CN102814946A (en) * | 2012-08-20 | 2012-12-12 | 浙江黄岩美多模具厂 | Secondary ejecting mechanism of automobile door panel injection mold |
| CN203472089U (en) * | 2013-08-29 | 2014-03-12 | 天津国丰模具有限公司 | Ejector pin component ejection mechanism |
| CN203957309U (en) * | 2014-07-04 | 2014-11-26 | 宁波双林模具有限公司 | The ejecting mechanism of loudspeaker mesh product mold |
-
2015
- 2015-06-16 CN CN201510335232.7A patent/CN104999629A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201271999Y (en) * | 2008-12-16 | 2009-07-15 | 宁波远东制模有限公司 | Ejection device of injection mold |
| CN102059784A (en) * | 2010-11-05 | 2011-05-18 | 宁波如强模塑有限公司 | Secondary ejection device of pneumatic slide core sleeve |
| CN102814946A (en) * | 2012-08-20 | 2012-12-12 | 浙江黄岩美多模具厂 | Secondary ejecting mechanism of automobile door panel injection mold |
| CN203472089U (en) * | 2013-08-29 | 2014-03-12 | 天津国丰模具有限公司 | Ejector pin component ejection mechanism |
| CN203957309U (en) * | 2014-07-04 | 2014-11-26 | 宁波双林模具有限公司 | The ejecting mechanism of loudspeaker mesh product mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334692A (en) * | 2021-06-02 | 2021-09-03 | 重庆连成模具有限公司 | Notebook keyboard keycap mold and demolding and ejecting method |
| CN115091170A (en) * | 2022-06-23 | 2022-09-23 | 浙江万丰精密制造有限公司 | Combined type jet pin installation mechanism with air guide function |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151028 |
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| RJ01 | Rejection of invention patent application after publication |