CN104044247A - Mold suitable for producing annular shock absorbers - Google Patents

Mold suitable for producing annular shock absorbers Download PDF

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Publication number
CN104044247A
CN104044247A CN201410258118.4A CN201410258118A CN104044247A CN 104044247 A CN104044247 A CN 104044247A CN 201410258118 A CN201410258118 A CN 201410258118A CN 104044247 A CN104044247 A CN 104044247A
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CN
China
Prior art keywords
mould
positioning table
applicable
slide
die
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.)
Granted
Application number
CN201410258118.4A
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Chinese (zh)
Other versions
CN104044247B (en
Inventor
张裕华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dexing Tai Precision Electronics (kunshan) Co Ltd
Original Assignee
Dexing Tai Precision Electronics (kunshan) Co Ltd
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Application filed by Dexing Tai Precision Electronics (kunshan) Co Ltd filed Critical Dexing Tai Precision Electronics (kunshan) Co Ltd
Priority to CN201410258118.4A priority Critical patent/CN104044247B/en
Publication of CN104044247A publication Critical patent/CN104044247A/en
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Publication of CN104044247B publication Critical patent/CN104044247B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701Details not specific to hot or cold runner channels
    • B29C45/2708Gates
    • B29C2045/2709Gates with a plurality of mould cavity inlets in close proximity

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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 discloses a mold suitable for producing annular shock absorbers. The mold suitable for producing the annular shock absorbers comprises a driving mechanism, a forming mechanism and an ejecting mechanism; the forming mechanism comprises a mold core which is formed the top surface between slide blocks in a clamping manner and is lower than the top surfaces of the slide blocks; a product mold cavity is formed in the mold core; a sprue communicated with the product mold cavity is formed on the top of the mold core, and consists of three sunken runners which are distributed at equal included angles of 120 degrees; a positioning table is arranged between every two adjacent runners; the included angle between the top surface of each positioning table and the horizontal level is 3-5 degrees, and the height of the positioning table, which is close to the center of the mold cavity, is the highest. The concentricity and the roundness of the annular shock absorbers are ensured maximally by improving the charging sprue, a mold structure as well as a processing technology; the product quality is in the advanced level in the industry; meanwhile, the mold can be applied to the production of other similar products.

Description

Be applicable to produce the mould of annular damper
Technical field
The present invention relates to a kind of mould, be specifically related to a kind of mould that is applicable to produce annular damper, belong to mechanical field.
Background technology
In inner and outer decorative parts of automobile, have a lot of circular plastic parts, its circularity and concentricity requirement are very high.Because plastics can produce internal stress when the injection mo(u)lding, after formed product, in cooling procedure, internal stress can discharge gradually, and this will cause product to produce micro-distortion.Product is thicker, its deformation extent will be larger, the standard of industry is that this deformation extent is controlled in +/-0.1mm, in order to accomplish this tolerance, current line in the industry common practices is that product cast gate is made loopful shape, and many glue is deliberately made in the place that dimensional requirement is higher, after plastic product Stress Release finishes, by CNC, chase after machining pouring gate and many Jiao Chu again, complete final product.This way not only manufacturing cost is very high, and because many one CNC processing technologys have also increased fraction defective.Given this, if can make the automobile plastic cement parts of the qualified circularity of one-shot forming, high concentricity, will greatly reduce costs, improve production capacity and quality.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of mould that can produce the automobile plastic cement parts of high circularity, high concentricity, the annular damper of automobile of usining describes to explaining better the present invention as concrete production object.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Be applicable to produce the mould of annular damper, comprise driving mechanism, shaping mechanism and ejecting mechanism, described driving mechanism comprises: slide, the slide block being connected with slide, drive the Angle Pin of slide motion, be positioned at press strip slide two ends and that be provided with guide rail, described shaping mechanism comprises: be located in end face between a pair of slide block lower than the die of slide block end face, in described die, be formed with product die cavity, the top of die is formed with the cast gate that is communicated with product die cavity, three recessed runners that described cast gate is distributed by angles such as 120 degree form, between two adjacent runners, be all provided with positioning table, the end face of described positioning table and the angle of horizontal plane are 3-5 degree, and positioning table is the highest near the height of die cavity center, the end face of preferred orientation platform and the angle of horizontal plane are 3 degree.
Aforementioned driving mechanism is two covers, is divided into the both sides of shaping mechanism, and the edge that two slide blocks contact each other all leaves the defective material that 0.01-0.05mm is thick when preparatory processing, and preferably the thickness of defective material is 0.05mm.
The highest point of aforementioned positioning table is no more than the end face of slide block.
Aforementioned ejecting mechanism comprises: the push pedal and the thimble that are installed on die below.
The bottom surface of aforementioned runner is arcwall face, and the effective discharge area from runner entrance to Way out runner increases gradually.
Usefulness of the present invention is: mould of the present invention, cast gate is designed to three divings mouthful (being recessed runner) that the angles such as 120 degree distribute, the circularity of guaranteeing product is best, and it is residual that the cast gate of this shape can effectively reduce charging, save follow-up labor cleaning's cast gate residual, reduced labour intensity; When the positioning table arranging contributes to matched moulds, guarantee the concentricity of patrix counterdie between runner, further guarantee the concentricity of product, precision can reach in 0.01mm; Further, in order to guarantee the quality of fit of two side slides, the localization part contacting at both leaves the defective material that 0.01-0.05mm is thick, and after component assembling, property is carried out fine finishining again, eliminates rigging error accumulation; To sum up, mould of the present invention is by improving charging cast gate, this body structure of mould and processing technology, at utmost low guaranteed concentricity and the circularity of annular damper, product quality is in industry-leading level, and this mould also can be generalized in the production of other similar products and apply simultaneously.
Accompanying drawing explanation
Fig. 1 is the perspective view that is applicable to produce the mould of annular damper of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the part-structure schematic diagram of the mould of Fig. 1;
Fig. 4 is the local structure for amplifying schematic diagram of Fig. 3.
The implication of Reference numeral in figure: 1, slide, 2, slide block, 3, edge, 4, Angle Pin, 5, press strip, 6, die, 7, runner, 8, positioning table, 9, push pedal, 10, thimble.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is done to concrete introduction.
Referring to Fig. 1 to Fig. 3, mould of the present invention, be specially adapted to produce annular damper, can guarantee that product circularity and the concentricity produced are very high, Stress Release in the time of can be because of the demoulding makes annular become ellipse, in be controlled at ± 0.1mm of distortion tolerance, the top standard of this technology in industry.
Specifically, the same with most of mould, mould of the present invention can be divided into driving mechanism, shaping mechanism and ejecting mechanism three parts.Wherein, driving mechanism comprises: slide 1, the slide block 2 being connected with slide 1, drive slide 1 motion Angle Pin 4, be positioned at slide press strips 51 two ends and that be provided with guide rail, the connected mode of these parts and type of drive are all identical with prior art, just do not repeat herein.As shown in Figure 1, driving mechanism is two covers, be divided into the both sides of shaping mechanism, the edge 3 that two slide blocks 2 contact each other all leaves the defective material that 0.01-0.05mm is thick and (in industry, is referred to as " staying iron " when preparatory processing, the in the situation that of shape invariance, deliberately make mould not be worked into design size.Such as design size is 20.00mm, stay after iron 0.1mm, mould actual size is 20.10mm, and this is to join mould and stay allowance for the later stage, or in order to adjust product size after die trial, in the present invention, stay the object of iron to be different from above-mentioned two kinds, in order to obtain higher mould and die accuracy), preferably the thickness of defective material is 0.05mm, after component assembling, property is carried out CNC fine finishining again, the accumulation of elimination rigging error, guarantees mould and die accuracy.
As shown in Figure 3, shaping mechanism comprises: be located in end face between a pair of slide block 2 lower than the die 6 of slide block 2 end faces, in die 6, be formed with product die cavity, the top of die 6 is formed with the cast gate for charging that is communicated with product die cavity, be different from traditional cast gate, three recessed runners 7 that cast gate of the present invention is distributed by angles such as 120 degree form, the design of this cast gate is the technical scheme through research obtains repeatedly, the circularity that can guarantee product is best, and it is residual that the cast gate of this shape can effectively reduce charging, saved follow-up labor cleaning's cast gate residue, reduced labour intensity.As a modification of the present invention, referring to Fig. 4, the bottom surface of runner 7 is arcwall face, guarantee that charging erosive force is little, and the effective discharge area from runner 7 entrances to outlet (being the position that material flows into die cavity) directional flow passage 7 increases gradually, namely, adopt cone road form to carry out charging, further improved the Forming Quality of product.
In the production process of product, above die 6, also has a patrix (not shown) with counterdie matched moulds, in order to make upper die and lower die there is higher concentricity when the matched moulds, thereby guarantee the concentricity of product, between two adjacent runners 7, be all provided with positioning table 8, the end face of positioning table 8 and the angle of horizontal plane are 3-5 degree, and positioning table 8 is the highest near the height of die cavity center, and highest point is no more than slide block 2 end faces, the end face of preferred orientation platform 8 and the angle of horizontal plane are 3 degree, in the time of can preventing die sinking, upper die and lower die are because thermal expansion is killed, can guarantee positioning precision again.
Referring to Fig. 1, ejecting mechanism is also comparatively ripe and general in prior art, comprising: be installed on push pedal 9 and the thimble 10 of die 6 belows, production completes after die sinking, by thimble 10, product is ejected to die 6, realizes product stripping.
More than show and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.

Claims (7)

1. be applicable to produce the mould of annular damper, comprise driving mechanism, shaping mechanism and ejecting mechanism, described driving mechanism comprises: slide, the slide block being connected with slide, drive the Angle Pin of slide motion, be positioned at press strip slide two ends and that be provided with guide rail, it is characterized in that, described shaping mechanism comprises: be located in end face between a pair of slide block lower than the die of slide block end face, in described die, be formed with product die cavity, the top of die is formed with the cast gate that is communicated with product die cavity, three recessed runners that described cast gate is distributed by angles such as 120 degree form, between two adjacent runners, be all provided with positioning table, the end face of described positioning table and the angle of horizontal plane are 3-5 degree, and positioning table is the highest near the height of die cavity center.
2. the mould that is applicable to produce annular damper according to claim 1, it is characterized in that, described driving mechanism is two covers, is divided into the both sides of shaping mechanism, and the edge that two slide blocks contact each other all leaves the defective material that 0.01-0.05mm is thick when preparatory processing.
3. the mould that is applicable to produce annular damper according to claim 2, is characterized in that, the thickness of described defective material is 0.05mm.
4. the mould that is applicable to produce annular damper according to claim 1, is characterized in that, the end face of described positioning table and the angle of horizontal plane are 3 degree.
5. the mould that is applicable to produce annular damper according to claim 4, is characterized in that, the highest point of described positioning table is no more than the end face of slide block.
6. the mould that is applicable to produce annular damper according to claim 1, is characterized in that, described ejecting mechanism comprises: the push pedal and the thimble that are installed on die below.
7. according to the mould that is applicable to produce annular damper described in claim 1-6 any one, it is characterized in that, the bottom surface of described runner is arcwall face, and the effective discharge area from runner entrance to Way out runner increases gradually.
CN201410258118.4A 2014-06-12 2014-06-12 Be applicable to the mould producing annular damper Active CN104044247B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410258118.4A CN104044247B (en) 2014-06-12 2014-06-12 Be applicable to the mould producing annular damper

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Application Number Priority Date Filing Date Title
CN201410258118.4A CN104044247B (en) 2014-06-12 2014-06-12 Be applicable to the mould producing annular damper

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CN104044247A true CN104044247A (en) 2014-09-17
CN104044247B CN104044247B (en) 2016-04-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113681828A (en) * 2021-08-11 2021-11-23 株洲时代新材料科技股份有限公司 Split type combined cavity vulcanizing mold for track shock absorber and production method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0229312A (en) * 1988-07-19 1990-01-31 Sharp Corp Injection molding die of split mold structure
JPH08216192A (en) * 1995-02-15 1996-08-27 Toto Ltd Mold for molding with many radial blade plates
CN103395174A (en) * 2013-07-25 2013-11-20 科益精密模塑(太仓)有限公司 Die core-pulling structure with high-coaxiality conical dimming gear
CN203945588U (en) * 2014-06-12 2014-11-19 泰德兴精密电子(昆山)有限公司 Be applicable to produce the mould of annular damper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0229312A (en) * 1988-07-19 1990-01-31 Sharp Corp Injection molding die of split mold structure
JPH08216192A (en) * 1995-02-15 1996-08-27 Toto Ltd Mold for molding with many radial blade plates
CN103395174A (en) * 2013-07-25 2013-11-20 科益精密模塑(太仓)有限公司 Die core-pulling structure with high-coaxiality conical dimming gear
CN203945588U (en) * 2014-06-12 2014-11-19 泰德兴精密电子(昆山)有限公司 Be applicable to produce the mould of annular damper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113681828A (en) * 2021-08-11 2021-11-23 株洲时代新材料科技股份有限公司 Split type combined cavity vulcanizing mold for track shock absorber and production method thereof
CN113681828B (en) * 2021-08-11 2023-08-25 株洲时代新材料科技股份有限公司 Split type combined cavity vulcanizing mold of rail damper and production method thereof

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