CN107020726B - Front rolling brush forming die - Google Patents
Front rolling brush forming die Download PDFInfo
- Publication number
- CN107020726B CN107020726B CN201710335408.8A CN201710335408A CN107020726B CN 107020726 B CN107020726 B CN 107020726B CN 201710335408 A CN201710335408 A CN 201710335408A CN 107020726 B CN107020726 B CN 107020726B
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- core
- driving gear
- water
- screw rod
- forming die
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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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- 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
- B29C45/7312—Construction of heating or cooling fluid flow channels
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a front rolling brush forming die which comprises a first core, a second core and a demoulding mechanism, wherein the first core and the second core are arranged oppositely; the demoulding mechanism comprises an ejector pin assembly, a first driving device and a second driving device, the ejector pin assembly comprises an ejector and an ejector pin, the first driving device is used for driving a first core to rotate and do linear reciprocating motion, the first driving device comprises a first oil cylinder, a first sliding block, a first screw rod, a first driving gear and a first driven gear, the second driving device is used for driving a second core to rotate, and the second driving device comprises a second oil cylinder, a second sliding block, a second screw rod, a second driving gear and a second driven gear. The front rolling brush forming die realizes the automatic production of front rolling brush products, improves the production efficiency and reduces the production cost.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a front rolling brush forming mold.
Background
As shown in fig. 1 and 2, the outer circumferential surface of the front rolling brush product 23 is provided with a spiral groove 23a, and the rotation directions of the spiral grooves of the upper and lower sections are opposite. Because of the particularity of the product, the front rolling brush die needs to be formed by adopting a fixed insert, manual rotation demoulding is needed during demoulding, and automatic production by using a mechanical arm cannot be realized, so that the following defects are caused: 1. the production efficiency is low, and the production cost is high; 2. the product has large dimensional instability and high production rejection rate; 3. potential safety hazards are easily caused when inserts are manually placed and the molds are taken.
Disclosure of Invention
Aiming at the current situation of the prior art, the invention provides a front rolling brush forming die, which improves the production efficiency and reduces the production cost.
In order to solve the technical problem, the front rolling brush forming die provided by the invention comprises a first core, a second core and a demoulding mechanism, wherein the first core and the second core are oppositely arranged, a first cavity for forming the front section of a product is arranged in the first core, and a second cavity for forming the rear section of the product is arranged in the second core;
the demolding mechanism comprises a cylinder ejecting needle assembly, a first driving device and a second driving device, the cylinder ejecting needle assembly comprises a cylinder and a cylinder ejecting needle matched with the cylinder, and the movable end of the cylinder ejecting needle extends into the second mold core and the first mold cavity; the first driving device comprises a first oil cylinder, a first slide block, a first screw rod, a first driving gear and a first driven gear, the first driven gear is fixedly sleeved on the first mold core, the first driving gear is meshed with the first driven gear, a threaded hole matched with the first screw rod is formed in the center of the first driving gear, the fixed end of the first screw rod is fixed on the first push plate, the movable end of the first screw rod is screwed into the threaded hole of the first driving gear, the first mold core, the first driving gear and the first driven gear are all arranged in the first slide block, and the telescopic rod of the first oil cylinder is connected with the first slide block; the second driving device comprises a second oil cylinder, a second sliding block, a second screw rod, a second driving gear and a second driven gear, the second driven gear is fixedly sleeved on the second core, the second driving gear is meshed with the second driven gear, a threaded hole matched with the second screw rod is formed in the center of the second driving gear, the fixed end of the second screw rod is fixed on the second pushing plate, the movable end of the second screw rod is screwed into the threaded hole of the second driving gear, the second core, the second driving gear and the second driven gear are installed in the second sliding block, and the telescopic rod of the second oil cylinder is connected with the second pushing plate.
In one embodiment, a first water channel and a second water channel for cooling water to pass through are respectively arranged on the first core and the second core.
In one embodiment, the first core comprises a first inner core and a first outer core sleeved outside the first inner core, and the first water channel is formed between the first inner core and the first outer core; the second core comprises a second inner core and a second outer core sleeved outside the second inner core, and the second water channel is formed between the second inner core and the second outer core.
In one embodiment, a first water tank extending along a spiral direction is arranged on the outer peripheral surface of the first inner core, and a first water channel is formed between the first water tank and the inner wall of the first outer core; and a second water channel is formed between the second water channel and the inner wall of the second outer mold core.
In one embodiment, the number of the first water tanks is two, the head ends of the two first water tanks are respectively communicated with a first water inlet and a first water outlet which are arranged on the first outer core, and the tail ends of the two first water tanks are communicated with each other; the first water inlets and the first water outlets are arranged on the first outer core, the first water channels are communicated with the first water inlet and the second water outlet, and the tail ends of the first water channels are communicated with the tail ends of the second water channels.
In one embodiment, a plurality of first heat dissipation grooves are formed in the outer peripheral surface of the first outer core, and a plurality of second heat dissipation grooves are formed in the outer peripheral surface of the second outer core.
In one embodiment, the first mold core and the second mold core are respectively provided with a first beryllium copper cooling device and a second beryllium copper cooling device.
In one embodiment, the front roll brush forming mold comprises two first cores, two second cores, two first driven gears and two second driven gears, the two first cores are arranged side by side, the two second cores are arranged side by side, the two first driven gears are respectively installed on the two first cores and are both meshed with the first driving gear, and the two second driven gears are respectively installed on the two second cores and are both meshed with the second driving gear.
In one embodiment, the moving direction of the first sliding block is perpendicular to the moving direction of the injection molding machine base plate.
The front rolling brush forming die provided by the invention realizes the automatic production of front rolling brush products, improves the production efficiency and reduces the production cost.
The advantageous effects of the additional technical features of the invention will be explained in the detailed description of the embodiments of the present specification.
Drawings
FIG. 1 is a schematic perspective view of a front roll brush product;
FIG. 2 is a left side view of a front roll brush product;
FIG. 3 is a schematic perspective view of a front rolling brush forming mold according to an embodiment of the present invention;
FIG. 4 is a schematic view of the internal structure of a front rolling brush forming mold according to an embodiment of the present invention;
FIG. 5 is a top view of a drive mechanism of a front roller forming die in an embodiment of the present invention;
FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a top view of a core of a forward rolling brush forming die in an embodiment of the present invention;
FIG. 8 is a top view of an inner core of a forward rolling brush forming mold in an embodiment of the present invention;
fig. 9 is a schematic perspective view of a ejector sleeve and a product of a front rolling brush forming die according to an embodiment of the present invention;
fig. 10 is a top view of a cartridge and a product of a front roll brush molding die according to an embodiment of the present invention;
fig. 11 is a sectional view taken along line C-C of fig. 10.
Description of reference numerals: 1. a second cylinder; 2. a second screw; 3. a second face needle plate; 5. a second slider; 6. a first slider; 7. a first screw; 8. a first cylinder; 9. a ejector sleeve; 10. a sleeve ejecting needle; 11. a second push plate; 12. a second fixed seat; 14. a first drive gear; 15. a first driven gear; 17. a first core; 172. a first outer core; 172a, a first water inlet; 172b, a first water outlet; 172c, a first heat sink; 174. a first inner core; 174a, a first water tank; 176. a first cavity; 178. a first beryllium copper cooling device; 20. a second driving gear; 21. a second driven gear; 22. a second core; 222. a second outer core; 222a and a second water inlet; 222b and a second water outlet; 222c, a second heat dissipation groove; 224. a second inner core; 224a, a second water tank; 226. a second cavity; 228. a second beryllium copper cooling device; 23. forward roll brushing the product; 23a, spiral groove.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.
As shown in fig. 3 to 11, the front roll brush forming mold according to one embodiment of the present invention includes a first core 17, a second core 22, and a mold releasing mechanism.
The first core 17 and the second core 22 are disposed oppositely, and opposite ends of the first core 17 and the second core 22 are butted. A first cavity 176 for molding a front section of a product is provided in the first core 17, and a second cavity 226 for molding a rear section of the product is provided in the second core 22. In order to improve the processing efficiency, the present embodiment includes two first cores 17 and two second cores 22, the two first cores 17 being disposed side by side, and the two second cores 22 being disposed side by side.
In one embodiment, in order to shorten the molding cycle and improve the production efficiency, the first core 17 and the second core 22 are respectively provided with a first water channel and a second water channel through which cooling water passes. Preferably, the first core 17 includes a first inner core 174 and a first outer core 172 fitted around the first inner core 174, and a first water passage is formed between the first inner core 174 and the first outer core 172; the second core 22 includes a second inner core 224 and a second outer core 222 fitted around the second inner core 224, and a second water passage is formed between the second inner core 224 and the second outer core 222. In order to further improve the heat dissipation efficiency, a first water tank 174a extending in a spiral direction is provided on an outer circumferential surface of the first inner core 174, and the first water tank 174a and an inner wall of the first outer core 172 form the first water passage therebetween; a second water tank 224a extending in a spiral direction is provided on an outer circumferential surface of the second inner core 224, and the second water channel is formed between the second water tank 224a and an inner wall of the second outer core 222. Further preferably, the number of the first water tanks 174a is two, head ends of the two first water tanks 174a are respectively communicated with a first water inlet 172a and a first water outlet 172b arranged on the first outer core 172, and tail ends of the two first water tanks 174a are communicated with each other; the number of the second water tanks 224a is two, the head ends of the two second water tanks 224a are respectively communicated with a second water inlet 222a and a second water outlet 222b arranged on the second outer core 222, and the tail ends of the two second water tanks 224a are mutually communicated.
In one embodiment, the first heat dissipation grooves 172c are formed on the outer circumferential surface of the first outer core 172, and the second heat dissipation grooves 222c are formed on the outer circumferential surface of the second outer core 222, so that the heat dissipation efficiency can be further improved.
In one embodiment, the first and second cores 17 and 22 are provided with first and second beryllium copper cooling devices 178 and 228, respectively, and the heat dissipation efficiency is further improved by the first and second beryllium copper cooling devices 178 and 228.
The demolding mechanism in the embodiment comprises an ejector pin assembly, a first driving device and a second driving device, wherein the ejector pin assembly comprises an ejector 9 and an ejector pin 10 matched with the ejector 9, the fixed end of the ejector 9 is fixed on the second panel pin 3, the fixed end of the ejector pin 10 is fixed on the second fixing seat 12, and the movable ends of the ejector 9 and the ejector pin 10 extend into the second mold core 22 and the first mold cavity 176.
The first driving means is for driving the first core 17 to rotate and linearly reciprocate. The first driving device includes a first oil cylinder 8, a first sliding block 6, a first screw 7, a first driving gear 14 and a first driven gear 15, the first driven gear 15 is sleeved on the first mold core 17, in this embodiment, there are two first driven gears 15, and the two first driven gears 15 are respectively installed on the first mold core 17. The first driving gear 14 is engaged with the two first driven gears 15, and a threaded hole matched with the first screw 7 is formed in the center of the first driving gear 14. The fixed end of the first screw 7 is fixed on a first push plate (not shown in the figure), and the movable end of the first screw 7 is screwed into the threaded hole of the first driving gear 14. The first core 17, the first driving gear 14 and the first driven gear 15 are all installed in the first sliding block 6. The first oil cylinder 8 is fixed on a first fixing seat (not shown in the figure), the telescopic rod of the first oil cylinder 8 is connected with the first sliding block 6, and the first driving gear 14 is driven by the first sliding block 6 to slide and rotate along the first screw 7, so that the first driven gear 15 is driven to rotate, and the first mold core 17 is driven to rotate.
The second driving means is used to drive the second core 22 in a rotational movement. The second driving device in this embodiment includes a second cylinder 1, a second slider 5, a second screw 2, a second driving gear 20 and a second driven gear 21, the second driven gear 21 is sleeved on the second core 22, in this embodiment, there are two second driven gears 21, and the two second driven gears 21 are respectively sleeved on the two second cores 22. The second driving gear 20 is engaged with the two second driven gears 21, a threaded hole matched with the second screw rod 2 is formed in the center of the second driving gear 20, the fixed end of the second screw rod 2 is fixed on the second push plate 11, and the movable end of the second screw rod 2 is screwed into the threaded hole of the second driving gear 20. The second core 22, the second driving gear 20 and the second driven gear 21 are all installed in the second slider 5. The second oil cylinder 1 is fixed on the second fixing seat 12, the telescopic rod of the second oil cylinder 1 is connected with the second push plate 11 and the second panel needle 3, and the second oil cylinder 1 drives the second push plate 11, the second panel needle 3 and the second screw rod 2 to move, so as to drive the second driving gear 20 to rotate, and further drive the second driven gear 21 to rotate, so as to drive the second core 22 to rotate.
In one embodiment, the moving direction of the first sliding block 6 is perpendicular to the moving direction of the injection molding machine bottom plate, so that the front rolling brush forming mold can be more compact in structure and thinner in thickness.
The working principle of the front rolling brush forming die in the embodiment is as follows:
when the mold is closed, the first oil cylinder 8 retracts, the second oil cylinder 1 retracts, at the moment, the opposite ends of the first mold core 17 and the second mold core 22 are butted to form a mold cavity for molding a product, and then, the injection molding is started.
After the molding is finished, the first oil cylinder 8 extends out to drive the first sliding block 6 to move on the first screw 7, and a first driving gear 14 in the first sliding block 6 rotates on the first screw 7 to drive two first driven gears 15 to rotate, so that the front-section demolding of the product is finished; then, the second oil cylinder 1 extends out to drive the push plate 11, the second face needle plate 3, the second screw rod 2 and the sleeve component to move along the left side in the figure 3; the second screw 2 drives the second driving gear 20 in the second slider 5 to rotate, the second driving gear 20 drives the two second driven gears 21 to rotate, and the rotation direction of the gears is the same as the spiral direction of the rear section of the product, so that ejection is facilitated. And finally, automatically demoulding the product.
Referring to fig. 10-11, during ejection, the ejector pin 10 is fixed on the second fixing seat 12 and cannot move; the ejector sleeve 9 moves along with the push plate 11 during ejection, and a product is ejected.
The front rolling brush forming die in the embodiment has the following beneficial effects:
1. the front rolling brush forming die in the embodiment realizes automatic production of front rolling brush products, improves production efficiency and reduces production cost. According to measurement and calculation, 200 products can be produced by improving the former die every day, wherein the defective rate is more than 20%; and after the improvement: 2000 products can be produced by one set of mould in one day, the reject ratio of the products is below 0.0002%, and the labor cost is reduced.
2. In the embodiment of the front rolling brush forming die, the spiral cloud water and the beryllium copper are used for cooling the product cavity and the product core respectively, so that the product forming period is shortened, and the production efficiency is improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. A front rolling brush forming die is characterized by comprising a first core, a second core and a demolding mechanism, wherein the first core and the second core are arranged oppositely;
the demolding mechanism comprises a cylinder ejecting needle assembly, a first driving device and a second driving device, the cylinder ejecting needle assembly comprises a cylinder and a cylinder ejecting needle matched with the cylinder, and the movable end of the cylinder ejecting needle extends into the second mold core and the first mold cavity; the first driving device comprises a first oil cylinder, a first sliding block, a first screw rod, a first driving gear and a first driven gear, the first driven gear is fixedly sleeved on the first mold core, the first driving gear is meshed with the first driven gear, a threaded hole matched with the first screw rod is formed in the center of the first driving gear, the fixed end of the first screw rod is fixed on the first push plate, the movable end of the first screw rod is screwed into the threaded hole of the first driving gear, the first mold core, the first driving gear and the first driven gear are all arranged in the first sliding block, and the telescopic rod of the first oil cylinder is connected with the first sliding block; the second driving device comprises a second oil cylinder, a second sliding block, a second screw rod, a second driving gear and a second driven gear, the second driven gear is fixedly sleeved on the second core, the second driving gear is meshed with the second driven gear, a threaded hole matched with the second screw rod is formed in the center of the second driving gear, the fixed end of the second screw rod is fixed on a second pushing plate, the movable end of the second screw rod is screwed into the threaded hole of the second driving gear, the second core, the second driving gear and the second driven gear are installed in the second sliding block, and the telescopic rod of the second oil cylinder is connected with the second pushing plate.
2. The front roll brush forming die according to claim 1, wherein the first core and the second core are respectively provided with a first water channel and a second water channel for cooling water to pass through.
3. The forward roll brush forming die of claim 2, wherein the first core comprises a first inner core and a first outer core sleeved outside the first inner core, and the first water passage is formed between the first inner core and the first outer core; the second core comprises a second inner core and a second outer core sleeved outside the second inner core, and the second water channel is formed between the second inner core and the second outer core.
4. The front roll brush molding die according to claim 3, wherein a first water channel extending in a spiral direction is provided on an outer circumferential surface of the first inner core, and the first water channel is formed between the first water channel and an inner wall of the first outer core; and a second water channel is formed between the second water channel and the inner wall of the second outer mold core.
5. The front rolling brush forming die as claimed in claim 4, wherein the number of the first water channels is two, the head ends of the two first water channels are respectively communicated with a first water inlet and a first water outlet arranged on the first outer core, and the tail ends of the two first water channels are communicated with each other; the first water channels are communicated with a first water inlet and a first water outlet which are arranged on the first outer mold core respectively, and the tail ends of the first water channels are communicated with each other.
6. The front roll brush forming die according to claim 3, wherein a plurality of first heat dissipating grooves are formed on the outer peripheral surface of the first outer core, and a plurality of second heat dissipating grooves are formed on the outer peripheral surface of the second outer core.
7. The front roller brush forming die as claimed in claim 1, wherein the first core and the second core are respectively provided with a first beryllium copper cooling device and a second beryllium copper cooling device.
8. The front roll brush forming die according to claim 1, comprising two first cores, two second cores, two first driven gears and two second driven gears, wherein the two first cores are arranged side by side, the two second cores are arranged side by side, the two first driven gears are respectively installed on the two first cores and are both engaged with the first driving gear, and the two second driven gears are respectively installed on the two second cores and are both engaged with the second driving gear.
9. The front roller forming mold of claim 1, wherein the first slide block moves in a direction perpendicular to a direction of movement of the injection molding machine base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335408.8A CN107020726B (en) | 2017-05-12 | 2017-05-12 | Front rolling brush forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335408.8A CN107020726B (en) | 2017-05-12 | 2017-05-12 | Front rolling brush forming die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107020726A CN107020726A (en) | 2017-08-08 |
| CN107020726B true CN107020726B (en) | 2022-10-21 |
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| CN201710335408.8A Active CN107020726B (en) | 2017-05-12 | 2017-05-12 | Front rolling brush forming die |
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| CN (1) | CN107020726B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001894B (en) * | 2021-02-09 | 2021-10-26 | 莱克电气股份有限公司 | Injection mold and manufacturing method of rotating body |
| CN113001893B (en) * | 2021-02-09 | 2022-06-21 | 莱克电气股份有限公司 | Rolling brush body, rolling brush, dust collection equipment and forming method of rolling brush body |
| CN112590129B (en) * | 2021-03-05 | 2021-05-18 | 莱克电气股份有限公司 | Injection mold and forming method of rotating body |
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| CN202480344U (en) * | 2012-03-31 | 2012-10-10 | 李海周 | Secondary ejection mechanism and helical gear forming mold comprising the same |
| CN102794876A (en) * | 2012-08-08 | 2012-11-28 | 慈溪市盛艺模具有限公司 | Injection mold for making helical fan |
| CN202764143U (en) * | 2012-09-06 | 2013-03-06 | 宁波意中模塑有限公司 | Double-color die of common machine |
| CN103963232A (en) * | 2014-03-24 | 2014-08-06 | 宁波圣捷喷雾泵有限公司 | Threading mold |
| CN206780886U (en) * | 2017-05-12 | 2017-12-22 | 珠海格力大金精密模具有限公司 | Preceding round brush mould |
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2017
- 2017-05-12 CN CN201710335408.8A patent/CN107020726B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607433A (en) * | 2009-06-12 | 2009-12-23 | 深圳创维－Rgb电子有限公司 | A kind of bicolor injection mould and injection moulding process |
| CN202480344U (en) * | 2012-03-31 | 2012-10-10 | 李海周 | Secondary ejection mechanism and helical gear forming mold comprising the same |
| CN102794876A (en) * | 2012-08-08 | 2012-11-28 | 慈溪市盛艺模具有限公司 | Injection mold for making helical fan |
| CN202764143U (en) * | 2012-09-06 | 2013-03-06 | 宁波意中模塑有限公司 | Double-color die of common machine |
| CN103963232A (en) * | 2014-03-24 | 2014-08-06 | 宁波圣捷喷雾泵有限公司 | Threading mold |
| CN206780886U (en) * | 2017-05-12 | 2017-12-22 | 珠海格力大金精密模具有限公司 | Preceding round brush mould |
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| Publication number | Publication date |
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| CN107020726A (en) | 2017-08-08 |
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