CN106079288A - Belt pulley is held concurrently helical gear product mould and processing method thereof - Google Patents
Belt pulley is held concurrently helical gear product mould and processing method thereof Download PDFInfo
- Publication number
- CN106079288A CN106079288A CN201610400490.3A CN201610400490A CN106079288A CN 106079288 A CN106079288 A CN 106079288A CN 201610400490 A CN201610400490 A CN 201610400490A CN 106079288 A CN106079288 A CN 106079288A
- Authority
- CN
- China
- Prior art keywords
- mold insert
- mould
- ring gear
- belt pulley
- die cavity
- 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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Links
- 238000003672 processing method Methods 0.000 title claims description 7
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000005461 lubrication Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 239000000047 product Substances 0.000 claims description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 8
- 239000006227 byproduct Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241001354235 Plagiodontes Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- B29C45/26—Moulds
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
-
- 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
- B29C45/72—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)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a kind of belt pulley to hold concurrently helical gear product mould, include upper mounted plate successively, front template, rear pattern plate, backing plate, ejector retainner plate and bottom plate, it is respectively equipped with, in front template and rear pattern plate, the front mould cooperating, rear mold mold insert, it is provided with die cavity between front mould mold insert and rear mold mold insert, die cavity belt pulley upper end is located in front mould mold insert, die cavity helical teeth lower end is placed in rear mold mold insert, it is provided with ring gear mold insert and mold insert briquetting in rear mold mold insert, ring gear mold insert engages with the helical teeth lower end of described die cavity, mold insert briquetting is placed in above ring gear mold insert, and it between mold insert briquetting and ring gear mold insert, is provided with transmission lubrication assembly, ring gear mold insert rotational band moves product stripping.The beneficial effects are mainly as follows: solve the problem with straight-tooth and the product depanning difficulty of helical teeth, effectively control the dimensional accuracy of product, can effectively control mould temperature by adding cooling body, use the mode that mold insert briquetting and mold insert ring gear combine, it is to avoid the increase of mould volume.
Description
Technical field
The present invention relates to a kind of belt pulley to hold concurrently helical gear product mould and processing method thereof, belong to machining skill
Art field.
Background technology
Gear is generally divided into direct tooth type, plagiodont according to the profile of tooth on surface.But due to the market demand, it may appear that straight-tooth and tiltedly
Tooth occurs on identical product simultaneously, as it is shown in figure 1, described product includes belt pulley upper end 17 and the helical teeth lower end with straight-tooth
18, inside and outside footpath, described helical teeth lower end 18 is all higher than the external diameter of belt pulley upper end 17.Described product has helical teeth outline, and interior
Being embedded with straight-tooth, described straight-tooth is arranged and helical teeth end top.Due to the particularity of this product, cause using general slide block depanning without
Method completes the demoulding, therefore needs to develop novel stripping forming mould.Then occur to use and force ejection device, but this kind of method
Easily affect tooth proportions precision；And use bearing mode to rotate depanning, can be because bearing takes up room bigger so that mold
Amass and be greatly increased, also can affect the arrangement in water route.
Content of the invention
It is an object of the invention to solve the problems referred to above, propose a kind of belt pulley hold concurrently helical gear product mould and
Processing method.
The purpose of the present invention is achieved through the following technical solutions:
A kind of belt pulley is held concurrently helical gear product mould, includes upper mounted plate, front template, rear pattern plate, backing plate, top successively
Needle plate and bottom plate, be respectively arranged with the front mould mold insert cooperating and rear mold mold insert, institute in described front template and rear pattern plate
Stating and being provided with die cavity between front mould mold insert and described rear mold mold insert, described die cavity includes a belt pulley upper end with straight-tooth and tiltedly
Tooth lower end, described belt pulley upper end is placed in the top of helical teeth lower end, and described belt pulley upper end and described helical teeth by connecting shaft
Lower end is coaxial, and the belt pulley upper end of described die cavity is arranged in front mould mold insert, and the helical teeth lower end of described die cavity is placed in rear mold mold insert
In, it is provided with ring gear mold insert and mold insert briquetting in described rear mold mold insert, the helical teeth lower end of described ring gear mold insert and described die cavity is nibbled
Closing, described mold insert briquetting is placed in and is provided with transmission between the top of ring gear mold insert, and described mold insert briquetting and described ring gear mold insert
Lubrication assembly, described ring gear mold insert rotational band movable property product rotate thus the demoulding.
Preferably, the inner ring of described ring gear mold insert is provided with helical teeth, and described helical teeth engages with the helical teeth lower end of die cavity, described
Ring gear mold insert rotates and drives described helical teeth lower end to rotate.
Preferably, described transmission lubrication assembly includes graphite block and ripple pearl screw.
Preferably, described ring gear mold insert upper surface offers an annular groove, described annular groove and described ring gear mold insert
Coaxially, being provided with ripple pearl screw in the bottom of described mold insert briquetting, described ring gear mold insert rotates and drives described ripple pearl screw recessed
Slide in groove, and be evenly equipped with graphite block between adjacent described ripple pearl screw, drive described mold insert briquetting to turn relative to ring gear mold insert
Dynamic.
Preferably, being provided with at least four thimble below described die cavity, the bottom of described thimble is connected with ejector retainner plate, described
Ejector retainner plate drives thimble to promote product motion.
Preferably, being additionally provided with cooling system in described mould, described cooling system is formed in being placed in forward and backward mould mold insert
Annular water channel.
Preferably, it is provided with one group of temperature sensor in described forward and backward template, often organize temperature sensor and be provided with two
Individual, and often organize described temperature sensor and be oppositely arranged.
Preferably, described front template top is provided with hydronic well, and described well is connected by pipeline, described water
Well is distributed in the border of die cavity.
A kind of belt pulley is held concurrently the processing method of helical gear product mould, comprises the steps:
S1, cast, forward and backward mould carries out matched moulds and enters from note cast gate to initial position, castable, enter into die cavity by runner；
S2, shaping, castable pressurize shaping in die cavity；
S3, cooling, carried out the cooling of mould and shaped article, and combine by the cooling system in mould and circulating cooling well
Temperature sensor enters the monitoring of trip temperature；
S4, die sinking, forward and backward template carries out die sinking after the cooling period, and front mould mold insert departs from the belt pulley upper end of product, due to product
Helical teeth lower end is placed in rear mold mold insert, waits the demoulding；
S5, the demoulding, ejector retainner plate promotes thimble to exert a force shaped article, and part power is put on ring gear mold insert by product, at thimble
On push away during, drive ring gear mold insert rotate, due on described ring gear mold insert arrange mold insert briquetting in be provided with stone
Ink and ripple pearl screw so that ring gear mold insert is when rotating, it is possible to reduce the rotational resistance of ring gear mold insert, thus be well on de-
Mould.
The beneficial effects are mainly as follows: solve difficult the asking of product depanning with straight-tooth and helical teeth
Topic, effectively controls the dimensional accuracy of product, can effectively control mould temperature by adding cooling body, use mold insert briquetting and mold insert
The mode that ring gear combines, it is to avoid the increase of mould volume.
Brief description
Below in conjunction with the accompanying drawings technical solution of the present invention is described further:
The shaped article structural representation of Fig. 1: the present invention.
The cross-sectional view of Fig. 2: the present invention.
The top view of Fig. 3: the present invention, now in order to preferably illustrate cooling system.
The ring gear mold insert of Fig. 4: the present invention and the structural relation schematic diagram of briquetting mold insert.
Detailed description of the invention
Present invention is disclosed a kind of belt pulley to hold concurrently helical gear product mould, as shown in figs 2-4, include successively
Upper mounted plate, front template the 1st, rear pattern plate the 2nd, backing plate the 3rd, ejector retainner plate 4 and bottom plate.It is provided with thimble 6 below described die cavity, described
The bottom of thimble 6 is connected with ejector retainner plate 4, is additionally provided with mould pin between described backing plate 3 and ejector retainner plate 4.During the demoulding, described ejector retainner plate
4 drive thimbles promote product motion.This part is consistent with prior art, therefore is not described in detail in this.
Be respectively arranged with the front mould mold insert 8 cooperating and rear mold mold insert in described front template 1 and rear pattern plate 2, described before
It is provided with die cavity between mould mold insert and described rear mold mold insert.Described die cavity includes under a belt pulley upper end with straight-tooth and helical teeth
End, described belt pulley upper end is placed in the top of helical teeth lower end, and described belt pulley upper end and described helical teeth lower end by connecting shaft
Coaxial, the belt pulley upper end of die cavity is arranged in front mould mold insert 8, and the helical teeth lower end of die cavity is placed in rear mold mold insert.
It in order to when the demoulding, can preferably make helical teeth lower end carry out the demoulding, in described rear mold mold insert, is provided with ring gear edge
Part 10 and mold insert briquetting 11, described ring gear mold insert 10 engages with the helical teeth lower end of described die cavity.Described mold insert briquetting 11 is placed in tooth
It is provided with transmission lubrication assembly, described tooth between the top of ring mold insert 10, and described mold insert briquetting 11 and described ring gear mold insert 10
Ring mold insert 10 rotational band moves product stripping.
Specifically, the inner ring of described ring gear mold insert 10 is provided with helical teeth, and described helical teeth engages with the helical teeth lower end of die cavity.
Described ring gear mold insert 10 upper surface offers an annular groove 15, is provided with ripple pearl screw in the bottom of described mold insert briquetting 11
12, described ripple pearl screw 12 slides in groove 15, and is evenly equipped with graphite block 14 between adjacent described ripple pearl screw 12.Described
Ripple pearl screw also can adopt in other ways, the such as form of collision bead screw or other tightening steel balls.Described graphite block is permissible
Other cup greases etc. are used to replace.
In principle, described groove also can be arranged on bottom mold insert briquetting, carries out still through ripple pearl screw and graphite
Lubrication rotates.
Owing to product is when pressurize is molded, in mould, temperature is higher, in order to enable temperature that is preferably moulding and that keep in mould
Degree control, is provided with cooling system and temperature sensor 16 in described mould.During due to shaping, forward and backward mould all can produce heat,
In order to preferably monitor temperature, being typically respectively arranged with one group of temperature sensor 16 in forward and backward mould, each group is provided with two
Individual, and often organize between temperature sensor and be oppositely arranged.
Described cooling system is to be placed in the interior annular water channel 9 being formed of forward and backward mould mold insert.The arrangement in described water route 9 can be entered
Row demand sets accordingly, typically can enclose and be located at die cavity periphery.In rear mold mold insert, the reason that due to product structure, after
Mould center mold insert diameter is less, therefore can use the form that jet pipe cools down in annular water channel.Described annular water channel is in continuous flowing
During, the exchange of cold and hot amount can be carried out, constantly to carry out required cooling.
Described front template top is provided with cooling well 13, is connected by pipeline, described well 13 between described well 13
It is distributed in the border of die cavity more effectively to cool down shaped article, be more beneficial for the follow-up demoulding.Owing to the present invention becomes
During type, temperature is higher, and in order to preferably ensure service life, the bottom of described mould is provided with rear mold thermal insulation board 5, described rear mold
Thermal insulation board 5 is placed in below bottom plate.
The processing molding method of the lower present invention described briefly below:
A kind of belt pulley is held concurrently the processing method of helical gear product mould, comprises the steps:
S1, cast, mould forward and backward template matched moulds to the original state pouring beginning, castable enters from note cast gate, passes through runner
Enter into die cavity；
S2, shaping, castable pressurize shaping in die cavity；
S3, cooling, carry out the cooling in mould by the cooling system in mould, and combine the prison that temperature sensor enters trip temperature
Control；
S4, die sinking, forward and backward template carries out die sinking after the cooling period, and front mould mold insert departs from the belt pulley upper end of product, due to product
Helical teeth lower end is placed in rear mold mold insert, waits the demoulding.The cast of product, shaping, all with existing die casting forming method class
Seemingly, due to the particularity of this product, so need to carry out the improvement of technology when the demoulding.
S5, the demoulding, ejector retainner plate 6 promotes thimble to exert a force shaped article, and part power is put on ring gear mold insert 10 by product,
During thimble pushes away, ring gear mold insert 10 is driven to rotate, due in the mold insert briquetting of setting on described ring gear mold insert
Being provided with graphite 14 and ripple pearl screw 15, graphite 14 plays the lubrication between ring gear mold insert 10 and mold insert briquetting 11, and ripple
Pearl screw 15 makes ring gear mold insert 10 when rotating, it is possible to reduce the rotational resistance of ring gear mold insert 10, thus be well on de-
Mould.
The mode that employing mold insert briquetting in the present invention is combined with ring gear mold insert, can avoid using bearing, thus avoid
Strengthen ranking, greatly reduce cost.Meanwhile, cooling system will not be impacted so that cool down more abundant.Simultaneously as this
The die space area occupied of invention is less relative to bearing depanning mode so that mould once plastic four products, described type
Chamber is arranged on and pours around mouth, is greatly improved working (machining) efficiency.
The present invention still has multiple specific embodiment, all employing equivalents or equivalent transformation and all skills of being formed
Art scheme, all falls within the scope of protection of present invention.
Claims (9)
1. belt pulley is held concurrently helical gear product mould, includes upper mounted plate, front template, rear pattern plate, backing plate, thimble successively
Plate and bottom plate, it is characterised in that: be respectively arranged with in described front template and rear pattern plate the front mould mold insert cooperating and after
Mould mold insert, is provided with die cavity between described front mould mold insert and described rear mold mold insert, described die cavity includes a belt with straight-tooth
Wheel upper end and helical teeth lower end, described belt pulley upper end is placed in the top of helical teeth lower end, and described belt pulley upper end by connecting shaft
Coaxial with described helical teeth lower end, the belt pulley upper end of described die cavity is arranged in front mould mold insert, and the helical teeth lower end of described die cavity is put
It in rear mold mold insert, in described rear mold mold insert, is provided with ring gear mold insert and mold insert briquetting, described ring gear mold insert and described die cavity
Helical teeth lower end is engaged, and described mold insert briquetting is placed between the top of ring gear mold insert, and described mold insert briquetting and described ring gear mold insert
Being provided with transmission lubrication assembly, described ring gear mold insert rotational band movable property product rotate thus the demoulding.
2. belt pulley according to claim 1 is held concurrently helical gear product mould, it is characterised in that: described ring gear mold insert
Inner ring be provided with helical teeth, described helical teeth engages with the helical teeth lower end of die cavity, and described ring gear mold insert rotates and drives under described helical teeth
End rotates.
3. belt pulley according to claim 2 is held concurrently helical gear product mould, it is characterised in that: described transmission lubrication
Assembly includes graphite block and ripple pearl screw.
4. belt pulley according to claim 3 is held concurrently helical gear product mould, it is characterised in that: described ring gear mold insert
Upper surface offers an annular groove, and described annular groove is coaxial with described ring gear mold insert, sets in the bottom of described mold insert briquetting
Being equipped with ripple pearl screw, described ring gear mold insert rotates and drives described ripple pearl screw to slide in groove, and adjacent described ripple pearl spiral shell
It is evenly equipped with graphite block between Si, drive described mold insert briquetting to rotate relative to ring gear mold insert.
5. belt pulley according to claim 1 is held concurrently helical gear product mould, it is characterised in that: below described die cavity
Being provided with at least four thimble, the bottom of described thimble is connected with ejector retainner plate, and described ejector retainner plate drives thimble to promote product motion.
6. belt pulley according to claim 1 is held concurrently helical gear product mould, it is characterised in that: in described mould also
Being provided with cooling system, described cooling system is to be placed in the interior annular water channel being formed of forward and backward mould mold insert.
7. belt pulley according to claim 1 is held concurrently helical gear product mould, it is characterised in that: described forward and backward mould
It is provided with one group of temperature sensor in plate, often organize temperature sensor and be provided with two, and it is relative often to organize described temperature sensor
Arrange.
8. belt pulley according to claim 6 is held concurrently helical gear product mould, it is characterised in that: on described front template
Portion is provided with hydronic well, is connected by pipeline between described well, and described well is distributed in the border of die cavity.
9. belt pulley is held concurrently the processing method of helical gear product mould, it is characterised in that: comprise the steps:
S1, cast, forward and backward mould carries out matched moulds and enters from note cast gate to initial position, castable, enter into die cavity by runner；
S2, shaping, castable pressurize shaping in die cavity；
S3, cooling, carried out the cooling of mould and shaped article, and combine by the cooling system in mould and circulating cooling well
Temperature sensor enters the monitoring of trip temperature；
S4, die sinking, forward and backward template carries out die sinking after the cooling period, and front mould mold insert departs from the belt pulley upper end of product, due to product
Helical teeth lower end is placed in rear mold mold insert, waits the demoulding；
S5, the demoulding, ejector retainner plate promotes thimble to exert a force shaped article, and part power is put on ring gear mold insert by product, at thimble
On push away during, drive ring gear mold insert rotate, due on described ring gear mold insert arrange mold insert briquetting in be provided with stone
Ink and ripple pearl screw so that ring gear mold insert is when rotating, it is possible to reduce the rotational resistance of ring gear mold insert, thus be well on de-
Mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400490.3A CN106079288B (en) | 2016-06-08 | 2016-06-08 | Belt pulley and helical gear product molding die and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400490.3A CN106079288B (en) | 2016-06-08 | 2016-06-08 | Belt pulley and helical gear product molding die and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106079288A true CN106079288A (en) | 2016-11-09 |
| CN106079288B CN106079288B (en) | 2019-01-25 |
Family
ID=57228149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400490.3A Active CN106079288B (en) | 2016-06-08 | 2016-06-08 | Belt pulley and helical gear product molding die and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106079288B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091700A (en) * | 2022-07-08 | 2022-09-23 | 上海栋磊精密模具技术有限公司 | Unilateral rotation takes off material injection mold |
| CN116352551A (en) * | 2023-06-01 | 2023-06-30 | 广州尚功塑胶有限公司 | Plastic packaging box burr trimming machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2418067A2 (en) * | 2010-08-09 | 2012-02-15 | The Japan Steel Works, Ltd. | Demolding device and injection molding machine |
| CN103538219A (en) * | 2012-07-10 | 2014-01-29 | 苏州星诺奇传动科技有限公司 | Rotary de-molding system |
| CN104227973A (en) * | 2014-06-03 | 2014-12-24 | 宁波天龙电子股份有限公司 | Bevel gear die |
| CN205835844U (en) * | 2016-06-08 | 2016-12-28 | 苏州启点机械有限公司 | Belt pulley is held concurrently helical gear product mould |
-
2016
- 2016-06-08 CN CN201610400490.3A patent/CN106079288B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2418067A2 (en) * | 2010-08-09 | 2012-02-15 | The Japan Steel Works, Ltd. | Demolding device and injection molding machine |
| CN103538219A (en) * | 2012-07-10 | 2014-01-29 | 苏州星诺奇传动科技有限公司 | Rotary de-molding system |
| CN104227973A (en) * | 2014-06-03 | 2014-12-24 | 宁波天龙电子股份有限公司 | Bevel gear die |
| CN205835844U (en) * | 2016-06-08 | 2016-12-28 | 苏州启点机械有限公司 | Belt pulley is held concurrently helical gear product mould |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091700A (en) * | 2022-07-08 | 2022-09-23 | 上海栋磊精密模具技术有限公司 | Unilateral rotation takes off material injection mold |
| CN116352551A (en) * | 2023-06-01 | 2023-06-30 | 广州尚功塑胶有限公司 | Plastic packaging box burr trimming machine |
| CN116352551B (en) * | 2023-06-01 | 2023-08-04 | 广州尚功塑胶有限公司 | Plastic packaging box burr trimming machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106079288B (en) | 2019-01-25 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Forming Mold and Processing Method for Belt Pulley and Helical Gear Products Granted publication date: 20190125 Pledgee: Mudu sub branch of Bank of Suzhou Co.,Ltd. Pledgor: SUZHOU STARTOOL CO.,LTD. Registration number: Y2024980012312 |
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