CN206748923U - Plastic chopping block injection mold - Google Patents
Plastic chopping block injection mold Download PDFInfo
- Publication number
- CN206748923U CN206748923U CN201720363634.2U CN201720363634U CN206748923U CN 206748923 U CN206748923 U CN 206748923U CN 201720363634 U CN201720363634 U CN 201720363634U CN 206748923 U CN206748923 U CN 206748923U
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- CN
- China
- Prior art keywords
- mould
- lower mould
- pressing plate
- upper mould
- injection mold
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- 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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Abstract
The utility model discloses a kind of plastic chopping block injection mold, including upper mould and lower mould, the cavity for being molded chopping board is provided between the upper mould and lower mould, the injection hole for the injection-moulded plastic into cavity is provided with the upper mould, slided on the upper mould and be provided with pressing plate, be fixed with some depression bars for being used to product is pressed on when upper mould separates with lower mould on lower mould on the pressing plate, the thrust spring for causing the downward mould motion of pressing plate is provided between the pressing plate and upper mould, release link is provided with the pressing plate, the release link close to upper mould end contradicts through upper mould and with lower mould, its drip irrigation device is by setting pressing plate and depression bar, when can make it that mould disengages with lower mould, product is pressed on lower mould, the later stage is facilitated to be stripped.
Description
Technical field
Injection mold is the utility model is related to, more particularly to a kind of plastic chopping block injection mold.
Background technology
Injection mold is a kind of instrument for producing plasthetics；Also plasthetics complete structure and accurate dimension are to confer to
Instrument.Injection molding is to produce a kind of processing method used during some complex-shaped parts in batches.Refer specifically to heated thawing
Plastics by injection machine high pressure inject die cavity, after cooling and solidifying, obtain formed products.
As shown in Figure 4,5, a kind of plastic chopping block 26, the plastic chopping block 26 includes front 24 and reverse side 25, in plastics dish
The front 24 of plate 26 is provided with anti-slip veins and a circle groove 27, and the plastic chopping block 26 is during fabrication by injection mold system
Make, during the demoulding, front 24 is taken out, it is necessary to so that upper mould and lower mould point towards upper mould, reverse side 25 towards lower mould in order to facilitate product
Stop after opening on lower mould, but the bonding force between the front 24 of plastic chopping block 26 and upper mould is larger, so plastic chopping block 26
It is easy to adhere on mould in the demoulding, but ejecting mechanism is located at lower mould end, so the chopping board being bonded on mould is by inconvenience
Come off, influence chopping board production.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of plastic chopping block injection mold,
The mould will cause chopping board to rest on all the time on lower mould after demoulding, facilitate chopping board to be stripped.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of plastic chopping block injection
Mould, including upper mould and lower mould, are provided with the cavity for being molded chopping board, are set on the upper mould between the upper mould and lower mould
There is the injection hole for the injection-moulded plastic into cavity, slided on the upper mould and be provided with pressing plate, be fixed with the pressing plate some
For the depression bar being pressed on product when upper mould separates with lower mould on lower mould, it is provided between the pressing plate and upper mould for making
The motion of pressing plate downward mould thrust spring, be provided with release link on the pressing plate, the release link through upper mould and with lower mould
Contradicted close to upper mould end.
Pass through above-mentioned technical proposal, plastics, which are cooled to, to be waited until to the injection-moulded plastic into cavity, injection completion by injection hole
After type so that upper mould separates with lower mould, at this moment due to thrust spring be present between upper mould and pressing plate, so in thrust spring
In the presence of pressing plate upper mould relative with depression bar will be caused to move, at this moment pressing plate and depression bar be relative to product geo-stationary,
So depression bar will be pressed on product on lower mould, until upper mould, which moves to, to be contacted with pressing plate lower surface, upper mould will be with dynamic pressure plate
Separated simultaneously with product with depression bar, product will be always positioned at lower mould end and facilitate the later stage to be stripped after the demoulding, facilitate the later stage to be stripped；Simultaneously
Release link is provided with pressing plate, when upper mould and lower mould matched moulds, release link will contradict with lower mould so that pressing plate promotes thrust bullet
Spring, and thrust spring is compressed, after upper mould is bonded completely with lower mould, it will so that depression bar sets back, you can under starting
Once it is molded work, it is simple and convenient during the demoulding, while can automatically reset when resetting.
Preferably, the trim ring coordinated with the groove on product is fixed with the depression bar.
Pass through above-mentioned technical proposal, in order that depression bar when product is pressed on lower mould, depression bar is not in product surface shape
Into groove, trim ring is fixed with the end of depression bar, trim ring shape coordinates with the groove on product, and the volume between trim ring and product
Contact area is larger, so being not easy to form depression on product, the product quality produced is high.
Preferably, the lower mould is provided with wear-resistant pad with release link contact position.
Pass through above-mentioned technical proposal, when pressing plate resets, release link will contact with lower mould and hit lower mould all the time, it is long this with
Toward lower mould serious wear will be caused, cause later stage release link can not by pressing plate parking position accuracy, therefore on lower mould with release link
Contact position is provided with wear-resistant pad, can slow down abrasion of the release link to lower mould by wear-resistant pad so that the mold body life-span increases.
Preferably, mounting groove is provided with the lower mould, the wear-resistant pad is detachably secured in mounting groove by screw.
Pass through above-mentioned technical proposal, in order that obtaining die life further increases, in lower mould and release link contact position
Mounting groove is provided with, wear-resistant pad is fixed with by the way that screw is removable in mounting groove, can cause what wear-resistant pad more renewed after wearing
Wear-resistant pad so that release link can reach all the time accurately to reset effect.
Preferably, thrust chamber is provided with the upper mould, one end and the thrust bottom of chamber portion of the thrust spring contradict, another
End contradicts with pressing plate, and the depth of the thrust chamber is not less than the minimum length of thrust spring.
Pass through above-mentioned technical proposal, when release link, which pushes pressing plate, to be resetted, pressing plate will gradually reduce thrust spring, such as answer
With debris be present at lower mould in position bar, it will so that thrust spring is overly compressed, plastic deformation will occur for such thrust spring,
Cause the later stage when being stripped pressing plate product can not be pressed on lower mould, therefore by setting thrust chamber, protection thrust bullet can be played
The effect of spring so that in deformation range of the thrust spring all the time in safety, while it is also possible that thrust spring is being compressed
During be not susceptible to rock.
Preferably, the lower mould bottom is provided with push pedal, and some be used for product from lower mould is provided with the push pedal
The thimble of ejection.
Pass through above-mentioned technical proposal, the product that will stay on for convenience on lower mould eject from lower mould, are set on lower mould
Be equipped with thimble, by push pedal promote thimble, back center quickly product can be ejected from lower mould.
Preferably, be provided with the lower mould in the demoulding to the valve blown between product and lower mould.
Pass through above-mentioned technical proposal, because the contact area between product and lower mould is larger, and between lower mould and product
There is no air presence, so product will be caused to be not easy to depart from from lower mould in the presence of external atmosphere pressure, such as by force will production
Product eject from lower mould, will have many ejection grooves on lower mould, influence product normal use, therefore, set on lower mould
Valve is equipped with, is ventilated by valve in the demoulding between product and lower mould so that product easily comes off from lower mould.
Preferably, the valve includes fixed cover and the movable post being arranged in fixed cover, the opening of the fixed cover
In horn-like, movable post is provided with conflict ring in the fixed cover, the movable post is set towards one end of fixed cover opening
Sealing block is equipped with, the other end is provided with conflict block, is provided between the conflict block and conflict ring for causing sealing block solid
The return spring of fixed set opening sealing, is provided with airspace, the sealing block is with contradicting between the conflict ring and movable post
The push chamber for facilitating gas to promote sealing block to outside fixed cover is provided between ring.
Pass through above-mentioned technical proposal, during work, blown into valve, gas will enter push chamber by airspace afterwards
In, with the increase of air pressure in push chamber, it will so that movable post moves to outside fixed cover, return spring will be gradually compressed,
So that being separated between sealing block and fixed cover, gap will be produced between fixed cover and sealing block afterwards, gas will pass through gap
Pass-out so that gas enters between lower mould and product, facilitates product stripping, can be in the effect of return spring when ventilation stops
Down so that movable post is to fixed cover internal motion, at this moment sealing block gradually will seal fixed cover opening.
In summary, the utility model having the beneficial effect that in contrast to prior art：By setting pressing plate and depression bar, simultaneously
Thrust spring is provided between pressing plate and upper mould, in the demoulding product can be rested on lower mould all the time, facilitate product
Later stage is stripped, while long lifespan, precision are high when in use for the mould.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment；
Fig. 2 is the half sectional view of embodiment；
Fig. 3 is the structural representation of embodiment valve；
Fig. 4 is the positive structure schematic of plastic chopping block；
Fig. 5 is the reverse structure schematic of plastic chopping block.
Reference：1st, upper mould；2nd, lower mould；3rd, injection hole；4th, pressing plate；5th, depression bar；6th, thrust spring；7th, release link；8、
Trim ring；9th, wear-resistant pad；10th, mounting groove；11st, thrust chamber；12nd, push pedal；13rd, thimble；14th, valve；15th, movable post；16th, it is fixed
Set；17th, ring is contradicted；18th, conflict block；19th, sealing block；20th, return spring；21st, airspace；22nd, push chamber；23rd, anti-slip tank；
24th, it is positive；25th, reverse side；26th, plastic chopping block；27th, groove.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
As shown in Figure 1, 2, a kind of plastic chopping block injection mold, including upper mould 1 and lower mould 2, set between upper mould 1 and lower mould 2
Cavity is equipped with, injection hole 3 is provided with upper mould 1, injection hole 3 connects with cavity, is slided on upper mould 1 and is provided with pressing plate 4,
Some depression bars 5 are fixed with pressing plate 4, thrust spring 6 is provided between pressing plate 4 and upper mould 1, thrust spring 6 will be all the time to pressure
Plate 4 applies thrust so that pressing plate 4 has the active force of the downward end motion of mould 2 all the time, and release link 7 is provided with pressing plate 4, multiple
Position bar 7 is fixed on pressing plate 4 through upper one end of mould 1, and the other end contradicts with lower mould 2 close to the upper end of mould 1.
Wherein, trim ring 8 is fixed with depression bar 5, trim ring 8 is consistent with the groove shapes on product, and depression bar 5 is on pressing plate 4
It is provided with one week so that depression bar 5 is distributed on trim ring 8, the uniform force of trim ring 8 so when using in the later stage.
Lower mould 2 and the contact position of release link 7 are provided with mounting groove 10, wear-resistant pad 9 is installed inside mounting groove 10, it is wear-resisting
Pad 9 can be that wear-resistant material, the wear-resistant pad 9 such as beryllium-bronze material are fixed by screws in mounting groove 10, when deployed between it is longer
Afterwards, wear-resistant pad 9 can be worn, so the wear-resistant pad 9 that can be more renewed by turning on screw.
Be provided with thrust chamber 11 on upper mould 1, the depth of thrust chamber 11 is not less than the minimum length of thrust spring 6, with
Anti-slip tank 23 is provided with the relative pressing plate 4 of thrust chamber 11, one end and the bottom of thrust chamber 11 of thrust spring 6 contradict, the other end
Contradicted with the bottom of anti-slip tank 23.
As shown in Fig. 2 being provided with push pedal 12 in the lower bottom of mould 2, some thimbles 13 are provided with push pedal 12, thimble 13 runs through
Lower mould 2 is set, and the end of thimble 13 is bonded with the product bottom being molded, and valve 14 is provided with lower mould 2, valve 14 goes out
Mouth is on the lower mould 2 below product.
As shown in figure 3, wherein, valve 14 includes fixed cover 16 and the movable post 15 being arranged in fixed cover 16, fixed cover
16 opening is provided with around movable post 15 in horn-like, in fixed cover 16 and contradicts ring 17, and movable post 15 is towards fixed cover 16
One end of opening is provided with sealing block 19, and the other end is provided with conflict block 18, is provided with back between conflict block 18 and conflict ring 17
Power spring 20, contradict and airspace 21 is provided between ring 17 and movable post 15, be provided between sealing block 19 and conflict ring 17
Push chamber 22.
During work, blown into valve 14, gas will be entered in push chamber 22 by airspace 21 afterwards, with push chamber
The increase of air pressure in 22, it will so that movable post 15 moves to outside fixed cover 16, return spring 20 will be gradually compressed so that close
Separated between envelope block 19 and fixed cover 16, will produce gap between fixed cover 16 and sealing block 19 afterwards, gas will by
Gap pass-out so that gas enters in product, facilitates product stripping, when ventilation stops, making in the presence of return spring 20
Movable post 15 is obtained to the internal motion of fixed cover 16, at this moment sealing block 19 will be gradually by the sealing of the opening of fixed cover 16.
Injection phase：At this moment upper mould 1 it is 2-in-1 with lower mould together with, molten condition is molded into mould by injection hole 3 afterwards
Plastics, plastics will be passed in cavity, stop injection when cavity is fully filled with by plastics, after plastics cooling and shaping i.e.
Can；
The die sinking stage：Upper mould 1 is gradually disengaged with lower mould 2, at this moment, can be pressed on product in the presence of thrust spring 6
On lower mould 2, until upper mould 1, which moves to, to be contacted with the lower surface of pressing plate 4, upper mould 1 will be with dynamic pressure plate 4 and depression bar 5 while and product
Separate, product be will stay on lower mould 2 afterwards, and die sinking is completed；
The ejection stage：After upper mould 1 is kept completely separate with lower mould 2, the upward end motion of mould 1 of push pedal 12 is driven, at this moment push pedal 12 will
13 upward ejecting product of thimble is driven, is now blown by valve 14 between product and lower mould 2, product will be with lower mould afterwards
Depart from simultaneously automatic blanking between 2；
Matched moulds stage：During the 2-in-1 mould of upper mould 1 and lower mould, upper mould 1 and lower mould 2 will be gradually to closely together, release link 7 afterwards
End will move closer to lower mould 2 and be contradicted with lower mould 2, descend mould 2 that release link 7 will be promoted to move upwards afterwards so that release link 7 pushes away
Dynamic pressure plate 4 moves, and pressing plate 4 will promote thrust spring 6 to gradually reduce, after upper mould 1 is bonded completely with lower mould 2, it will so that
Depression bar 5 sets back, you can starts to be molded work next time.
The above is only exemplary embodiment of the present utility model, not for limitation the scope of protection of the utility model,
The scope of protection of the utility model is determined by appended claim.
Claims (8)
1. a kind of plastic chopping block injection mold, including upper mould (1) and lower mould (2), are set between the upper mould (1) and lower mould (2)
There is the cavity for being molded chopping board, the injection hole (3) for the injection-moulded plastic into cavity is provided with the upper mould (1), it is special
Sign is：Slided on the upper mould (1) and be provided with pressing plate (4), some be used in upper mould (1) with is fixed with the pressing plate (4)
Product is pressed on the depression bar (5) on lower mould (2) by mould (2) when separating, be provided with and be used between the pressing plate (4) and upper mould (1)
So that the thrust spring (6) of pressing plate (4) mould (2) motion downwards, is provided with release link (7), the release link on the pressing plate (4)
(7) contradicted through upper mould (1) and with lower mould (2) close to upper mould (1) end.
2. plastic chopping block injection mold according to claim 1, it is characterized in that：It is fixed with the depression bar (5) and product
On groove coordinate trim ring (8).
3. plastic chopping block injection mold according to claim 1, it is characterized in that：The lower mould (2) contacts with release link (7)
Place is provided with wear-resistant pad (9).
4. plastic chopping block injection mold according to claim 3, it is characterized in that：Mounting groove is provided with the lower mould (2)
(10), the wear-resistant pad (9) is detachably secured in mounting groove (10) by screw.
5. plastic chopping block injection mold according to claim 1, it is characterized in that：Thrust chamber is provided with the upper mould (1)
(11), one end of the thrust spring (6) contradicts with thrust chamber (11) bottom, and the other end contradicts with pressing plate (4), the thrust chamber
(11) depth is not less than the minimum length of thrust spring (6).
6. plastic chopping block injection mold according to claim 1, it is characterized in that：Lower mould (2) bottom is provided with push pedal
(12) some thimbles (13) for product to be ejected from lower mould (2), are provided with the push pedal (12).
7. plastic chopping block injection mold according to claim 6, it is characterized in that：It is provided with and is used on the lower mould (2)
To the valve (14) blown between product and lower mould (2) during the demoulding.
8. plastic chopping block injection mold according to claim 7, it is characterized in that：The valve (14) includes fixed cover (16)
With the movable post (15) being arranged in fixed cover (16), the opening of the fixed cover (16) is in horn-like, the fixed cover
(16) it is provided with around movable post (15) and contradicts ring (17), the movable post (15) sets towards one end that fixed cover (16) is open
Sealing block (19) is equipped with, the other end is provided with conflict block (18), use is provided between the conflict block (18) and conflict ring (17)
In the return spring (20) for make it that sealing block (19) seals fixed cover (16) opening, the conflict ring (17) and movable post (15)
Between be provided with airspace (21), the sealing block (19) and contradicting is provided with for facilitating gas to seal between ring (17)
The push chamber (22) that block (19) promotes outside to fixed cover (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720363634.2U CN206748923U (en) | 2017-04-08 | 2017-04-08 | Plastic chopping block injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720363634.2U CN206748923U (en) | 2017-04-08 | 2017-04-08 | Plastic chopping block injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206748923U true CN206748923U (en) | 2017-12-15 |
Family
ID=60613305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720363634.2U Expired - Fee Related CN206748923U (en) | 2017-04-08 | 2017-04-08 | Plastic chopping block injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206748923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182688A (en) * | 2018-11-13 | 2019-01-11 | 成都天马铁路轴承有限公司 | Bearing outer ring die quenching mold |
-
2017
- 2017-04-08 CN CN201720363634.2U patent/CN206748923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182688A (en) * | 2018-11-13 | 2019-01-11 | 成都天马铁路轴承有限公司 | Bearing outer ring die quenching mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20180408 |