CN103963232A - Threading mold - Google Patents
Threading mold Download PDFInfo
- Publication number
- CN103963232A CN103963232A CN201410109154.4A CN201410109154A CN103963232A CN 103963232 A CN103963232 A CN 103963232A CN 201410109154 A CN201410109154 A CN 201410109154A CN 103963232 A CN103963232 A CN 103963232A
- Authority
- CN
- China
- Prior art keywords
- strand tooth
- mold
- gear
- tooth axle
- counterdie
- 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
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
-
- 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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
- B29C45/322—Runner systems for distributing the moulding material to the stacked mould cavities
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a threading mold and aims to provide a mold capable of effectively ensuring that all cavities are free of problems such as too slow mold filling, interruption and the like, realizing reasonable cooling of cores under the energy-efficient condition and preventing the product quality from being affected during demolding. The mold comprises an upper mold, a lower mold, a mold cavity, an oil motor and a plurality of cores, wherein the mold cavity comprises a plurality of cavities arranged on threading shafts, the threading shafts are connected with driven gears, the oil motor is connected with a driving gear through a chain, the driving gear is meshed with at least one driven gear, a pouring gate is arranged on a fixed mold fixing plate and connected to a transverse runner, a plurality of vertical runners are arranged on a hot runner plate, hot pouring nozzles are arranged at lower ends of the vertical runners and connected to the cavities, and cooling water channels are formed in the threading shafts. The mold has the benefits as follows: full mold filling can be guaranteed, a cooling system in the mold does not occupy additional space, the cooling effect can be realized, and the phenomenon that thereasonable working temperature cannot be kept due to the fact that the cores are located in a lower-temperature environment can be prevented.
Description
Technical field
The invention belongs to injection mold field, relate in particular to a kind of strand tooth mould.
Background technology
The fillet of screw on atomizing pump is a kind of more common accessory, and it is widely used among productive life, and the production of the fillet of screw is generally to utilize strand tooth mould to complete.Strand tooth mould, in the process of moulding, except utilizing die cavity to shape, moulding, also will utilize the rotation of core to twist tooth molten plastic, thereby makes can have corresponding helicitic texture on the part of final molding.Strand tooth mould is generally a multi-cavity mold structure, the same with other mould of plastics, molten plastic enters each die cavity by cast gate, but, the part of producing due to strand tooth mould is threaded structure, belong to meticulousr parts, therefore the plastics stowage capacity in die cavity is had relatively high expectations, and the molten plastic entering from cast gate is in the time that horizontal runner enters multiple die cavity, due to the unequal factor of internal pressure, being prone to indivedual die cavities, to fill type excessively slow, be interrupted the not enough situation of even filling, easily cause the helicitic texture final molding that molding mass amount is had relatively high expectations defective, cause and scrap, moreover, in strand tooth mould, need cooling system, very easily overheated the scrapping of core of strand tooth mould, this be because its molten plastic that need to keep certain high temperature to maintain initially entering cold lacking, solidifies immediately, prevent from after plastic part moulding, occurring larger shrinkage cavity, filling the problems such as not enough, but core is because of temperature height very easy damage again, and current cooling system is being realized refrigerating function and do not made in too fast the two the harmony of core cooling still shortcoming to some extent, can not hold preferably.
Summary of the invention
The present invention twists the die cavity of tooth mould to be prone to and to fill type deficiency in prior art in order to overcome, cooling system can not only be realized refrigerating function but also maintain the deficiencies such as core reasonable temperature, provide a kind of and can all can not occur filling the problems such as type is excessively slow, interruption by the each die cavity of effective guarantee, can under energy-efficient situation, realize core again rationally cooling, when depanning, can not affect the mould of product quality.
To achieve these goals, the present invention is by the following technical solutions:
A kind of strand tooth mould, comprise patrix, counterdie, die cavity, described die cavity comprises some die cavities, also comprise an oil motor, some cores, each core correspondence is arranged on a strand tooth axle, described strand tooth axle stretches out outside counterdie through counterdie and lower end, described strand tooth axle lower end connects driven gear, described oil motor connects a driving gear by chain, each driven gear at least engages with a transmission gear, described driving gear engages with at least one driven gear, described patrix comprises cover half fixed head, hot runner manifold, described cover half fixed head is provided with cast gate, described cast gate is connected to the crossing current road being on hot runner manifold, described hot runner manifold is provided with some sprues, described sprue upper end is communicated with crossing current road, sprue lower end is a up big and down small hot pouring mouth, the mouth mouth correspondence of each hot pouring mouth is connected to a die cavity, interconnecting part is in the outside of die cavity upper end, described sprue is the height of penetration heat runner plate 2/3rds at least, described counterdie is provided with some ejector beams for auxiliary discharging, in described strand tooth axle, be provided with cooling water channel.Oil motor is power source, can pass through chain, driving gear, transmitting the each driven gear of gear driven rotates, thereby drive strand tooth axle to rotate, when moulding, molten plastic enters from cast gate, flow to the crossing current road on hot runner manifold, then enter in each sprue, the length of sprue has 2/3rds of hot runner manifold height at least, therefore there is enough appearance material spaces, can accumulate enough heat material, and then by hot pouring mouth supercharging, acceleration pours in each die cavity, thus, even in running channel there is filling the problems such as material slows down in the short time, because the material stock amount of sprue is enough, and utilize gravity to remain an extra mold filling pressure from top to bottom, therefore can not be interrupted the feed of die cavity, can ensure that to fill type abundant.The interconnecting part of hot pouring mouth and die cavity is in the outside of die cavity upper end, therefore after cooling forming, the runner clout that is in this connectivity part is also the outside that is connected to forming part upper end, when parting, pull-off force is applied to this place, and this place is just in time the thickness maximum of part, is also the intensity maximum in overall structure, therefore while breaking, part the most easily keeps complete, is not prone to the related damage of drawing of part.Direct cooling duct in cooling system, cooling water channel are all in strand tooth axle, can not take mould additional space, when saving material, can keep integrally-built compactedness, when cooling, be equivalent to carry out heat transmission instead of to core direct water-cooling by strand tooth axle, both guaranteed to play cooling effect, but do not allow again cooling water directly contact core, can prevent that core was in lower temperature environment directly, always and cannot maintains rational operating temperature.
As preferably, described counterdie comprises base plate, backing plate, described base plate is provided with outer cooling duct, in described strand tooth axle, be provided with the direct cooling duct being communicated with cooling water channel, described direct cooling duct is between cooling water channel and core, and described direct cooling duct is connected to outside counterdie by drainage road.
As preferably, described counterdie also comprises the baffle teeth fixed head, gear upper mounted plate, the gear bottom plate that set gradually from top to bottom, within described driven gear is in gear upper mounted plate.
As preferably, in described gear upper mounted plate, be provided with some bearings, each strand tooth axle is connected with two bearing fits.
As preferably, described number of cavity is 8 to 48, and every four strand tooth axles are one group of rectangular arranged, and the strand tooth axle connected driven gear being under the jurisdiction of in same group is engaged in same transmission gear.
As preferably, between described hot pouring mouth and die cavity, form a connection chamber, described connection chamber has four sides, an end face, a bottom surface, angle between described four sides and horizontal plane is all different, the cross section of described connection chamber reduces from top to bottom gradually, and described end face is rectangle.
As preferably, on described cooling water channel, be provided with some spray-holes, the injection direction of described spray-hole is for upwards and become 45 to 60 degree with horizontal plane, described strand tooth axle top is provided with the flow guiding disc being connected with core, described flow guiding disc be in cooling water channel upper end open directly over, described flow guiding disc lateral has a down dip and forms water conservancy diversion edge.
The invention has the beneficial effects as follows: can effective guarantee each die cavity fill type fully, uninterrupted, make moulding complete, cooling system in mould is arranged in strand tooth axle, twists between tooth axle and core, do not occupy additional space, and carry out heat transmission by strand tooth axle, guarantee to play cooling effect, but do not allow again core directly be in the environment that cooling water surrounds, can prevent that core is in lower temperature environment and cannot maintains rational operating temperature.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is bottom surface structure schematic diagram of the present invention;
Fig. 3 is the structural representation at strand tooth axle of the present invention place;
Fig. 4 is the structural representation at sprue of the present invention place;
Fig. 5 is the structural representation at connection chamber place in the embodiment of the present invention 2;
Fig. 6 is the structural representation that twists tooth axle place in the embodiment of the present invention 3.
In figure: oil motor 1, core 2, strand tooth axle 3, driven gear 4, driving gear 5, transmission gear 6, cover half fixed head 7, hot runner manifold 8, cast gate 9, crossing current road 10, sprue 11, hot pouring mouth 12, ejector beam 13, cooling water channel 14, base plate 15, backing plate 16, direct cooling duct 17, baffle teeth fixed head 18, gear upper mounted plate 19, gear bottom plate 20, connection chamber 21, spray-hole 22, flow guiding disc 23, water conservancy diversion edge 24.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, in embodiment described in Fig. 4, a kind of strand tooth mould, comprise patrix, counterdie, die cavity, described die cavity comprises some die cavities, also comprise an oil motor 1, some cores 2, each core 2 correspondences are arranged on a strand tooth axle 3, described strand tooth axle 3 stretches out outside counterdie through counterdie and lower end, described strand tooth axle 3 lower ends connect driven gear 4, described oil motor 1 connects a driving gear 5 by chain, each driven gear 4 at least engages with a transmission gear 6, described driving gear 5 engages with at least one driven gear 4, described patrix comprises cover half fixed head 7, hot runner manifold 8, described cover half fixed head 7 is provided with cast gate 9, described cast gate 9 is connected to the crossing current road 10 being on hot runner manifold 8, described hot runner manifold 8 is provided with some sprues 11, described sprue 11 upper ends are communicated with crossing current road 10, sprue 11 lower ends are a up big and down small hot pouring mouth 12, the mouth mouth correspondence of each hot pouring mouth 12 is connected to a die cavity, interconnecting part is in the outside of die cavity upper end, the at least height of penetration heat runner plate 2/8ths three of described sprue 11, described counterdie is provided with some ejector beams 13 for auxiliary discharging, in described strand tooth axle 3, be provided with cooling water channel 14.Described counterdie comprises base plate 15, backing plate 16, described base plate 15 is provided with outer cooling duct, in described strand tooth axle 3, be provided with the direct cooling duct 17 being communicated with cooling water channel 14, described direct cooling duct 17 is between cooling water channel 14 and core 2, and described direct cooling duct 17 is connected to outside counterdie by drainage road.Described counterdie also comprises the baffle teeth fixed head 18, gear upper mounted plate 19, the gear bottom plate 20 that set gradually from top to bottom, within described driven gear 4 is in gear upper mounted plate 19.In described gear upper mounted plate 19, be provided with some bearings, each strand tooth axle 3 is connected with two bearing fits.Described number of cavity is 8 to 48, and every four strand tooth axles 3 are one group of rectangular arranged, and the strand tooth axle 3 connected driven gears 4 that are under the jurisdiction of in same group are engaged in same transmission gear 6.
Oil motor 1 is power source, can pass through chain, driving gear 5, transmitting gear 6 drives each driven gear 4 to rotate, thereby drive strand tooth axle 3 to rotate, when moulding, molten plastic enters from cast gate 9, flow to the crossing current road 10 on hot runner manifold 8, then enter in each sprue 11, the length of sprue 11 has 2/3rds of hot runner manifold 8 height at least, therefore there is enough appearance material spaces, can accumulate enough heat material, and then by hot pouring mouth 12 superchargings, acceleration pours in each die cavity, thus, even in running channel there is filling the problems such as material slows down in the short time, because the material stock amount of sprue 11 is enough, and utilize gravity that an extra mold filling pressure is provided all the time from top to bottom, therefore can not be interrupted the feed of die cavity, can ensure that to fill type abundant.The interconnecting part of hot pouring mouth 12 and die cavity is in the outside of die cavity upper end, therefore after cooling forming, the runner clout that is in this connectivity part is also the outside that is connected to forming part upper end, when parting, pull-off force is applied to this place, and this place is just in time the thickness maximum of part, is also the intensity maximum in overall structure, therefore while breaking, part the most easily keeps complete, is not prone to the related damage of drawing of part.Direct cooling duct 17 in cooling system, cooling water channel 14 are all in strand tooth axle 3, can not take mould additional space, when saving material, can keep integrally-built compactedness, when cooling, be equivalent to carry out heat transmission instead of to core 2 direct water-cooling by strand tooth axle 3, both guaranteed to play cooling effect, but do not allow again cooling water directly contact core 2, can prevent that core 2 was in lower temperature environment directly, always and cannot maintains rational operating temperature.
Embodiment 2:
The basic structure of the present embodiment and embodiment are with embodiment 1, its difference is, as shown in Figure 5, between described hot pouring mouth 12 and die cavity, form a connection chamber 21, described connection chamber 21 has four sides, an end face, a bottom surface, angle between described four sides and horizontal plane is all different, and the cross section of described connection chamber 21 reduces from top to bottom gradually, and described end face is rectangle.
If an object global shape is irregular, in the time being subject to external force, the inevitable size smaller part that easily concentrates on the minimum place of size, thinnest part or local linkage section of stress.After forming parts, plastics solidification in connection chamber 21 is plastics linkage section, this section has four sides, and the angle between four sides and horizontal plane is all different, therefore its shape is very irregular, but its cross section is again to reduce gradually under going up extremely, that is to say that connecting weakness is forming part and the section that is connected of this plastics linkage section, so, in the time that parting is broken, pull-off force concentrates on this section, and main pull-off force is with to change section parallel, therefore can effectively realize fast separating of part and running channel clout, and can ensure that tear section is comparatively level and smooth, can injuring part.
Embodiment 3:
The basic structure of the present embodiment and embodiment are with embodiment 1, its difference is, as shown in Figure 6, on described cooling water channel 14, be provided with some spray-holes 22, the injection direction of described spray-hole 22 is for upwards and become 45 to 60 degree with horizontal plane, described strand tooth axle 3 tops are provided with the flow guiding disc 23 being connected with core 2, described flow guiding disc 23 be in cooling water channel 14 upper end open directly over, described flow guiding disc 23 laterals have a down dip and form water conservancy diversion edge 24.
In the strand tooth mold cooling system of prior art, cooling water is filled in each water channel always and continues to supply, cooling water flow through successively outer cooling duct, cooling water channel 14, directly cooling duct 17, drainage road.Therefore twist tooth axle 3 inside comprehensive, lasting with cooling water contact always, and core 2 is arranged on strand tooth axle 3, therefore core 2 or can large area, fast, constantly amount of heat is delivered in cooling water far away, and in order to maintain the normal working temperature in core 2 and die cavity, certainly will need hot runner manifold 8 to have very high temperature, continue to provide more heat, this has just caused the waste of the energy.And in the present embodiment, cooling water does not continue to be full of in cooling system, but be ejected into through cooling water channel 14, spray-hole 22 on the inwall of strand tooth axle 3, and from cooling water channel 14 top jet to flow guiding disc 23, diversed to strand tooth axle 3 inwalls by water conservancy diversion edge 24 again, all the other do not have in the space of water is all air.Therefore in mold work process, water in cooling water channel 14 is gone out with regard to rotary-jet, be accompanied by the rotation of strand tooth axle 3, these injection streams and the current that throw away, derive from flow guiding disc 23 can effectively be distributed to strand tooth axle 3 inwalls everywhere, continue to carry out the interruption water-cooled of each part, and cooling uniformity is excellent.And flow guiding disc 23 is in strand tooth axle 3 tops, the strand tooth part that on core 2, temperature is the highest also can direct heat transfer to flow guiding disc 23, flow guiding disc 23, touching from the cooling water of cooling water channel 14 tops ejections, can directly effectively carry out cooling to core 2.So, strand tooth axle 3 is no longer in the environment always surrounding in cooling water, core 2 bottoms are to be no longer also all in cooling water environment, and only can contact a part of cooling water by flow guiding disc 23, therefore the core 2 being connected with strand tooth axle 3 also can not continue, fast heat is passed, so both there is cooling effect, can prevent core 2 cause thermal damage excessively, do not need again hot runner manifold 8 to maintain very high temperature always and prevent that core 2 heat loss are too fast, temperature is too low, thereby effectively reduce the heating energy consumption of hot runner manifold 8, and greatly reduce the unit interval flow of cooling water channel 14, save the energy, improve the feature of environmental protection.
Claims (7)
1. a strand tooth mould, comprise patrix, counterdie, die cavity, described die cavity comprises some die cavities, it is characterized in that, also comprise an oil motor (1), some cores (2), each core (2) correspondence is arranged on a strand tooth axle (3), described strand tooth axle (3) stretches out outside counterdie through counterdie and lower end, described strand tooth axle (3) lower end connects driven gear (4), described oil motor (1) connects a driving gear (5) by chain, each driven gear (4) at least engages with a transmission gear (6), described driving gear (5) engages with at least one driven gear (4), described patrix comprises cover half fixed head (7), hot runner manifold (8), described cover half fixed head (7) is provided with cast gate (9), described cast gate (9) is connected to the crossing current road (10) being on hot runner manifold (8), described hot runner manifold (8) is provided with some sprues (11), described sprue (11) upper end is communicated with crossing current road (10), sprue (11) lower end is a up big and down small hot pouring mouth (12), the mouth mouth correspondence of each hot pouring mouth (12) is connected to a die cavity, interconnecting part is in the outside of die cavity upper end, the at least height of penetration heat runner plate (8) 2/3rds of described sprue (11), described counterdie is provided with some ejector beams (13) for auxiliary discharging, in described strand tooth axle (3), be provided with cooling water channel (14).
2. a kind of strand tooth mould according to claim 1, it is characterized in that, described counterdie comprises base plate (15), backing plate (16), described base plate (15) is provided with outer cooling duct, in described strand tooth axle (3), be provided with the direct cooling duct (17) being communicated with cooling water channel (14), described direct cooling duct (17) is between cooling water channel (14) and core (2), and described direct cooling duct (17) is connected to outside counterdie by drainage road.
3. a kind of strand tooth mould according to claim 1; it is characterized in that; described counterdie also comprises the baffle teeth fixed head (18), gear upper mounted plate (19), the gear bottom plate (20) that set gradually from top to bottom, within described driven gear (4) is in gear upper mounted plate (19).
4. a kind of strand tooth mould according to claim 3, is characterized in that, in described gear upper mounted plate (19), be provided with some bearings, each strand tooth axle (3) is connected with two bearing fits.
5. according to the one strand tooth mould described in claim 1 or 2 or 3, it is characterized in that, described number of cavity is 8 to 48, every four strand tooth axles (3) are one group of rectangular arranged, and strand tooth axle (3) the connected driven gear (4) being under the jurisdiction of in same group is engaged in same transmission gear (6).
6. a kind of strand tooth mould according to claim 1, it is characterized in that, between described hot pouring mouth (12) and die cavity, form a connection chamber (21), described connection chamber (21) has four sides, an end face, a bottom surface, angle between described four sides and horizontal plane is all different, the cross section of described connection chamber (21) reduces from top to bottom gradually, and described end face is rectangle.
7. a kind of strand tooth mould according to claim 2, it is characterized in that, on described cooling water channel (14), be provided with some spray-holes (22), the injection direction of described spray-hole (22) is for upwards and become 45 to 60 degree with horizontal plane, described strand tooth axle (3) top is provided with the flow guiding disc (23) being connected with core (2), described flow guiding disc (23) be in cooling water channel (14) upper end open directly over, described flow guiding disc (23) lateral have a down dip form water conservancy diversion edge (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109154.4A CN103963232B (en) | 2014-03-24 | 2014-03-24 | A kind of strand tooth mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109154.4A CN103963232B (en) | 2014-03-24 | 2014-03-24 | A kind of strand tooth mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103963232A true CN103963232A (en) | 2014-08-06 |
| CN103963232B CN103963232B (en) | 2016-03-02 |
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ID=51233464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410109154.4A Active CN103963232B (en) | 2014-03-24 | 2014-03-24 | A kind of strand tooth mould |
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| Country | Link |
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| CN (1) | CN103963232B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020726A (en) * | 2017-05-12 | 2017-08-08 | 珠海格力大金精密模具有限公司 | Preceding round brush mould |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201900694U (en) * | 2010-12-20 | 2011-07-20 | 上海天海电子有限公司 | Tapping mold |
| CN202071293U (en) * | 2011-05-06 | 2011-12-14 | 厦门华盛弘精密模具有限公司 | Structure of rapid cooling reaming tooth mould |
| CN202668805U (en) * | 2012-07-11 | 2013-01-16 | 厦门市松竹精密科技有限公司 | High-precision twisted tooth mould utilizing water cooling mould core |
| CN203765952U (en) * | 2014-03-24 | 2014-08-13 | 宁波圣捷喷雾泵有限公司 | Toothed mould |
-
2014
- 2014-03-24 CN CN201410109154.4A patent/CN103963232B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201900694U (en) * | 2010-12-20 | 2011-07-20 | 上海天海电子有限公司 | Tapping mold |
| CN202071293U (en) * | 2011-05-06 | 2011-12-14 | 厦门华盛弘精密模具有限公司 | Structure of rapid cooling reaming tooth mould |
| CN202668805U (en) * | 2012-07-11 | 2013-01-16 | 厦门市松竹精密科技有限公司 | High-precision twisted tooth mould utilizing water cooling mould core |
| CN203765952U (en) * | 2014-03-24 | 2014-08-13 | 宁波圣捷喷雾泵有限公司 | Toothed mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020726A (en) * | 2017-05-12 | 2017-08-08 | 珠海格力大金精密模具有限公司 | Preceding round brush mould |
| CN107020726B (en) * | 2017-05-12 | 2022-10-21 | 珠海格力大金精密模具有限公司 | Front rolling brush forming die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103963232B (en) | 2016-03-02 |
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