CN111688128A - Feeding improvement formula injection mold - Google Patents
Feeding improvement formula injection mold Download PDFInfo
- Publication number
- CN111688128A CN111688128A CN202010380136.5A CN202010380136A CN111688128A CN 111688128 A CN111688128 A CN 111688128A CN 202010380136 A CN202010380136 A CN 202010380136A CN 111688128 A CN111688128 A CN 111688128A
- Authority
- CN
- China
- Prior art keywords
- injection mold
- wall
- sealing film
- sprue
- mold
- 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.)
- Withdrawn
Links
- 238000002347 injection Methods 0.000 title claims abstract description 26
- 239000007924 injection Substances 0.000 title claims abstract description 26
- 238000001746 injection moulding Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 10
- 239000000565 sealant Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 abstract description 12
- 239000005060 rubber Substances 0.000 abstract description 12
- 239000004033 plastic Substances 0.000 abstract description 11
- 229920003023 plastic Polymers 0.000 abstract description 11
- 239000002994 raw material Substances 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 5
- 230000005389 magnetism Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C2045/2761—Seals between nozzle and mould or gate
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a feeding improved injection mold, which avoids taking out molten raw materials when a nozzle of an injection molding machine is pulled out and can prevent impurities from entering the interior of a mold cavity through a sealing film arranged on the inner wall of a sprue bush. The key points of the technical scheme are as follows: the utility model provides a feeding improvement formula injection mold, includes gating system, molding system and base, its characterized in that: the gating system comprises a gate and a runner, wherein a gate sleeve is arranged at the upper end of the gate, at least one layer of sealing film is arranged on the inner wall of the gate sleeve, the outer end of the sealing film is integrated with the inner wall of the gate sleeve, and the sealing film is made of a material with ductility and resilience. By adopting the feeding improved injection mold, the sealing film arranged at the inner wall of the rubber sleeve can prevent molten plastic or rubber from being brought out when the nozzle of the injection molding machine is pulled out, so that a sprue or an external environment is prevented from being polluted, impurities can be prevented from entering the cavity of the mold, and the precision and the purity of an injection molding product are ensured.
Description
Technical Field
The invention relates to the field of mold design and manufacture, in particular to a feeding improved injection mold.
Background
Injection molding is a method for producing and molding industrial products. The products are generally made by rubber injection molding and plastic injection molding, wherein the injection molding is to make thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by an injection molding machine and the die.
The die is various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, the mold is a tool for manufacturing a molded article, and the injection mold is widely used in the forming process of compression molding or injection molding of engineering plastics, rubber, ceramics and other products, and has a specific contour or inner cavity shape, and the inner cavity shape is used to make a blank obtain a corresponding three-dimensional shape.
The existing injection molding process is that plastic is added into a heating charging barrel of an injection machine, the plastic is heated and melted, enters a mold cavity through a nozzle and a mold pouring system under the pushing of a screw rod or a plunger of the injection machine, and is hardened and molded into an injection molding product due to physical and chemical actions. The thermoplastic plastic injection molding has short molding cycle and high production efficiency, the melt has small abrasion to the mold, and the plastic parts with complicated shapes, clear surface patterns and marks and high dimensional precision can be molded in large batch.
However, the injection molds currently used still have the following disadvantages:
1. when an injection molding machine is used for injecting molten plastic or rubber into a mold, a nozzle of the injection molding machine needs to be inserted into a sprue of the mold, and the nozzle needs to be pulled out after the injection is finished, but when the nozzle is pulled out, part of the molten plastic or rubber often remains, and the remaining molten plastic or rubber drips on the sprue or other positions, solidifies and is difficult to clean, so that the problem of equipment pollution is caused.
2. Because the gate of the mold is not sealed, when the mold is not used, dust or particles in air can fall into a cavity of the mold through the gate, so that an injection molding product contains impurities and the precision of the injection molding product is influenced.
Disclosure of Invention
The invention aims to provide a feeding improved injection mold, which avoids bringing out molten raw materials when a nozzle of an injection molding machine is pulled out and can prevent impurities from entering the interior of a mold cavity through a sealing film arranged on the inner wall of a sprue bush.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the utility model provides a feeding improvement formula injection mold, includes gating system, molding system and base, its characterized in that: the gating system comprises a gate and a runner, wherein a gate sleeve is arranged at the upper end of the gate, at least one layer of sealing film is arranged on the inner wall of the gate sleeve, the outer end of the sealing film is integrated with the inner wall of the gate sleeve, and the sealing film is made of a material with ductility and resilience.
Compared with the prior art, the feeding improved injection mold adopting the technical scheme has the following beneficial effects:
firstly, by adopting the feeding improved injection mold, the sealing film arranged at the inner wall of the rubber sleeve opening can prevent molten plastic or rubber from being taken out when the nozzle of the injection molding machine is pulled out, and the pollution to a sprue or an external environment is avoided.
By adopting the feeding improved injection mold, the inner cavity of the mold is isolated from the external environment by the sealing film arranged on the inner wall of the rubber sleeve opening, so that impurities are prevented from entering the inner cavity of the mold, and the precision and the purity of an injection product are ensured.
Preferably, the center of the sealing membrane is provided with a circular hole with the diameter of 1-5mm, the circular hole is filled with the sealing gum, and the circular hole can reduce the resistance of the nozzle of the injection molding machine inserted into the sprue, so that the sealing membrane is attached to the side wall of the nozzle tightly to prevent the injection molding raw material remained on the nozzle from being taken out.
Preferably, the sealing membrane is inclined towards the inside of the gate, which is beneficial for guiding the nozzle of the injection molding machine to be inserted into the gate through the circular hole.
Preferably, the quantity of seal membrane is three, and three seal membrane inwards arranges in proper order along the inner wall of runner cover for the raw materials that are infected with on its lateral wall can be better when the nozzle is pulled out is clear away, has still strengthened the isolated degree of mould inner chamber with external environment.
Preferably, the angle between seal membrane and the sprue bush inner wall is 75, both can guarantee certain gradient, can guarantee again that sealed glue stops in the circular port.
Preferably, the sprue bush is further provided with a positioning ring, the positioning ring is fixed at the nozzle of the injection molding machine, the positioning ring can be aligned with the sprue bush through a positioning device, and the positioning ring can enable the nozzle of the injection molding machine to be rapidly and accurately inserted into the sprue.
Preferably, positioner is magnetism and inhales the device, and magnetism is inhaled the device and is included two positioning magnet, and runner upper surface is located to one of them positioning magnet, and the holding ring lower surface is located to another positioning magnet, and magnetism inhales that device positioning speed is very fast, and it is more convenient to dismantle.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a feeding modified injection mold according to the present invention.
Fig. 2 is a schematic cross-sectional view of the present embodiment.
Fig. 3 is a schematic structural diagram of the gating system in this embodiment.
FIG. 4 is a schematic diagram illustrating the manner of using the retaining ring of the present embodiment.
FIG. 5 is a schematic structural diagram of the retaining ring of the present embodiment.
Reference numerals: 1. a pouring system; 10. a gate; 11. a sprue bush; 110. a sealing film; 111. a circular hole; 12. a flow channel; 13. a positioning ring; 14. a magnet piece; 2. a molding system; 3. a base.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The improved feeding injection mold shown in fig. 1 and 2 comprises a pouring system 1, a forming system 2 and a base 3, wherein the pouring system 1, the forming system 2 and the base 3 are sequentially connected from top to bottom, the pouring system 1 comprises a pouring gate 10, a pouring gate sleeve 11 and a flow channel 12, the pouring gate sleeve 11 is arranged at the upper end of the pouring gate 10, the pouring gate sleeve 11 is hollow and communicated with the pouring gate 10, and the flow channel 12 penetrates through a cavity inside the forming system 2 from the pouring gate 10 downwards. During injection molding, the nozzle of the injection molding machine is inserted into the gate 10 through the gate sleeve 11, and the molten plastic or rubber enters the molding system 2 through the runner 12.
As shown in fig. 3, the inner wall of the sprue bush 11 is provided with three layers of sealing films 110, the three layers of sealing films 110 are sequentially arranged inwards at equal intervals along the inner wall of the sprue bush 11, the outer end of each sealing film 110 is integrated with the inner wall of the sprue bush 11, the sealing films 110 are obliquely arranged towards the inner direction of the sprue 10, a circular hole 111 with the diameter of 3mm is further formed in the center of each sealing film 110, and the circular hole 111 can reduce the resistance of a nozzle of an injection molding machine inserted into the sprue 10, so that the sealing films 110 are tightly attached to the side wall of the nozzle to prevent injection molding raw materials; the circular hole 111 is filled with sealant, and when the mold is in an unused state, the sealant can completely isolate the interior of the mold from the external environment, so that magazines are prevented from entering the mold, and the precision and the purity of injection molding products are guaranteed.
The angle between the sealing film 110 and the inner wall of the sprue bush 11 is 75 degrees, so that a certain inclination can be ensured, and the sealing glue can be ensured to stay in the circular hole 111.
The sealing film 110 is made of a material having ductility and resilience, such as silicone rubber and soft rubber, and when the nozzle of the injection molding machine is inserted into the gate 10, the circular hole 111 in the middle of the sealing film 110 is opened, and the inner wall of the circular hole 111 is tightly attached to the side wall of the nozzle, so that when the nozzle of the injection molding machine is pulled out, the raw material contaminated on the nozzle cannot pass through the circular hole 111, and the raw material is completely left in the molding system 2.
As shown in the figure, be equipped with the holding ring 13 that is arranged in inserting the accurate runner 10 of injection molding machine nozzle on the runner cover 11, holding ring 13 can be fixed in the nozzle of injection molding machine, holding ring 13 is connected relative it with runner cover 11 through magnetism device of inhaling, magnetism device includes two annular magnet pieces 14, the lower surface of holding ring 13 is located to one of them magnet piece 14, the upper surface of runner cover 11 is located to another magnet piece 14, it makes the nozzle that has holding ring 13 accurately insert runner 10 through the inter attraction between two magnet pieces 14, magnetism device positioning speed is very fast, and it is more convenient to dismantle.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (7)
1. The utility model provides a feeding improvement formula injection mold, includes gating system (1), molding system (2) and base (3), its characterized in that: gating system (1) is equipped with runner (10) cover including runner (10), runner (12), runner (10) upper end, and runner (10) inner wall is equipped with at least one deck seal membrane (110), and the outer end of seal membrane (110) is as an organic whole with runner (10) cover inner wall, and seal membrane (110) adopts the material that has ductility and resilience.
2. The feed modified injection mold of claim 1, wherein: the center of the sealing membrane (110) is provided with a round hole (111) with the diameter of 1-5mm, and the round hole (111) is filled with sealant.
3. The feed modified injection mold of claim 2, wherein: the sealing film (110) is arranged obliquely towards the inside of the pouring gate (10).
4. The feed modified injection mold of claim 1, wherein: the number of the sealing films (110) is three, and the three sealing films (110) are arranged inwards in sequence along the inner wall of the sprue (10) sleeve.
5. The feed modified injection mold of claim 3, wherein: the angle between the sealing film (110) and the inner wall of the sprue (10) sleeve is 75 degrees.
6. The feed modified injection mold of claim 1, wherein: the sprue (10) sleeve is also provided with a positioning ring (13), the positioning ring (13) is fixed at a nozzle of the injection molding machine, and the positioning ring (13) can be aligned with the sprue (10) sleeve through a positioning device.
7. The feed modified injection mold of claim 5, wherein: the positioning device is a magnetic device which comprises two positioning magnets, wherein one positioning magnet is arranged on the upper surface of the sprue (10), and the other positioning magnet is arranged on the lower surface of the positioning ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380136.5A CN111688128A (en) | 2020-05-08 | 2020-05-08 | Feeding improvement formula injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380136.5A CN111688128A (en) | 2020-05-08 | 2020-05-08 | Feeding improvement formula injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111688128A true CN111688128A (en) | 2020-09-22 |
Family
ID=72476522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010380136.5A Withdrawn CN111688128A (en) | 2020-05-08 | 2020-05-08 | Feeding improvement formula injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111688128A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207252A (en) * | 2020-09-23 | 2021-01-12 | 邹平天晟金属科技有限公司 | Auto-parts die casting die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880042A (en) * | 2005-06-16 | 2006-12-20 | 君特注塑系统有限公司 | Injection-molding apparatus cleaning system, and injection molding apparatus |
| CN105584007A (en) * | 2016-03-15 | 2016-05-18 | 中山联合光电科技股份有限公司 | Heat insulation sprue bushing |
| CN205601091U (en) * | 2016-04-28 | 2016-09-28 | 莆田学院 | Injection mold |
| CN206297091U (en) * | 2016-12-21 | 2017-07-04 | 南京建勋塑胶模具有限公司 | Injection mold and mould with mold insert |
| CN208247351U (en) * | 2017-11-27 | 2018-12-18 | 深圳茂达诚企业管理有限公司 | A kind of pouring gate structure of injection mold |
| CN209775433U (en) * | 2019-03-29 | 2019-12-13 | 咸宁市洪盛模具科技有限公司 | Hot runner mold with multi-point hot sprue |
-
2020
- 2020-05-08 CN CN202010380136.5A patent/CN111688128A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880042A (en) * | 2005-06-16 | 2006-12-20 | 君特注塑系统有限公司 | Injection-molding apparatus cleaning system, and injection molding apparatus |
| CN105584007A (en) * | 2016-03-15 | 2016-05-18 | 中山联合光电科技股份有限公司 | Heat insulation sprue bushing |
| CN205601091U (en) * | 2016-04-28 | 2016-09-28 | 莆田学院 | Injection mold |
| CN206297091U (en) * | 2016-12-21 | 2017-07-04 | 南京建勋塑胶模具有限公司 | Injection mold and mould with mold insert |
| CN208247351U (en) * | 2017-11-27 | 2018-12-18 | 深圳茂达诚企业管理有限公司 | A kind of pouring gate structure of injection mold |
| CN209775433U (en) * | 2019-03-29 | 2019-12-13 | 咸宁市洪盛模具科技有限公司 | Hot runner mold with multi-point hot sprue |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207252A (en) * | 2020-09-23 | 2021-01-12 | 邹平天晟金属科技有限公司 | Auto-parts die casting die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200922 |