CN201371558Y - In-mold structure for automatically degating side gates and injection mold - Google Patents
In-mold structure for automatically degating side gates and injection mold Download PDFInfo
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- CN201371558Y CN201371558Y CN200920135019U CN200920135019U CN201371558Y CN 201371558 Y CN201371558 Y CN 201371558Y CN 200920135019 U CN200920135019 U CN 200920135019U CN 200920135019 U CN200920135019 U CN 200920135019U CN 201371558 Y CN201371558 Y CN 201371558Y
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- river
- mouth
- cavity
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Abstract
An in-mold structure for automatically degating side gates comprises a front cavity, a front mold plate fixedly engaged with the front cavity, a rear cavity and a rear mold plate fixedly engaged with the rear mold cavity. The front cavity is engaged with the rear cavity to form a mold cavity for forming products and a runner cavity for forming runner gates, an ejector device for ejecting the products and the runner gates is arranged below the rear mold plate, and a side gate insert is arranged between the mold cavity and the runner cavity and is equipped with side gates respectively communicated with the mold cavity and the runner cavity. The utility model further provides an injection mold comprising the in-mold structure for automatically degating side gates. By utilizing coaction of the side gate insert and an ejector pin to degate the side gates, traces of plastic parts at the degating positions of the side gates can be weakened and the plastic parts can not generate fatigue strength at the degating positions of the side gates, therefore, the in-mold structure for automatically degating side gates guarantees appearance quality of the plastic parts, avoids hand-operated degating of the side gates and reducing labor intensity of workers.
Description
Technical field
The utility model belongs to the injection mold field, relates in particular to and cuts off the injection mold that side is watered the structure at the mouth of a river and adopted this structure in a kind of mould automatically.
Background technology
In the injection mold industry, when thin-walled glue spare is selected into the glue mode, restriction because of product thickness, the comprehensive plastic cement factors such as glue spare distortion that flow behind filling science and the injection moulding generally select big flood oral-lateral face to advance glue mode (as shown in Figures 1 and 2), select this to advance the injection moulding of glue mode, after the 91 shaping demouldings of glue spare, glue spare 91 connects together with the mouth of a river 92, need carry out secondary operations and wipe out the mouth of a river 92, but thisly advance the glue mode following shortcoming is arranged:
(1) when wiping out the mouth of a river 92, need to make special anchor clamps, both increased cost of labor, increased the anchor clamps cost of manufacture again;
(2) in the secondary processing process of wiping out the mouth of a river 92, mechanical shear stress can destroy glue spare 91 internal stress, because glue spare 91 is a thin-wall product, glue spare 91 often produces distortion;
(3) after wiping out the mouth of a river 92, have mouth of a river remnants on the glue spare 91, influence glue spare 91 local sizes and outward appearance.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of interior automatic injection mold that side is watered the structure at the mouth of a river and adopted this structure that cuts off of mould that guarantees glue spare size and outward appearance.
The utility model is to realize like this, automatically cut off the structure that side is watered the mouth of a river in a kind of mould, comprise preceding die, front template with described preceding die secure fit, back die and with the rear pattern plate of described back die secure fit, the flow passage chamber that die and back die cooperate the die cavity that is formed for shaped article and be used for the molding runners mouth of a river before described, described rear pattern plate below is provided with the liftout attachment that product and the runner mouth of a river are ejected, be provided with a side gate mold insert between described die cavity and the flow passage chamber, offer the side gate that is communicated with described die cavity and flow passage chamber respectively on the described side gate mold insert.
Described die cavity has 2, is symmetrical arranged.
Described liftout attachment comprises thimble panel and the Ejector Retainer Plate of fixedlying connected with described thimble panel, is installed with some thimbles on the described thimble panel.
Described side gate mold insert is fixedly arranged on the die of described back.
Described Ejector Retainer Plate below is provided with a back die holder plate.
The utility model also provides a kind of and has comprised that cutting off side in the foregoing mould automatically waters the injection mold of the structure at the mouth of a river, and this injection mold comprises front mould seat board and back die holder plate.
Described front mould seat board is fixedly arranged on the described front template.
Described back die holder plate is located at described Ejector Retainer Plate below.
Automatically cut off the injection mold that side is watered the structure at the mouth of a river and adopted this structure in the mould that the utility model provides, simple in structure, controllability good, after the die sinking, cut off side by the acting in conjunction of side gate mold insert and thimble and water the mouth of a river, make glue spare water the vestige desalination of mouth of a river cut-off part in side, and glue spare waters mouth of a river cut-off part in side can not produce fatigue strength, thereby guaranteed the exterior quality of glue spare, improved the quality of glue spare, also avoided artificial removal's side to water the mouth of a river, improve the production efficiency of glue spare, alleviated personnel labor.
Description of drawings
Fig. 1 schematic diagram that to be the glue spare that provides of prior art connect together with the mouth of a river;
A-A cutaway view among Fig. 2 Fig. 1;
Fig. 3 is the interior automatic part schematic diagram that side is watered gate structure that cuts off of mould that the utility model embodiment provides;
Fig. 4 is the generalized section of Fig. 3;
Fig. 5 is that the interior cut-out automatically of the mould side that comprises that the utility model embodiment provides is watered the schematic diagram under the injection mold matched moulds state of gate structure;
Fig. 6 is the enlarged diagram at A place among Fig. 3;
Fig. 7 is that the interior cut-out automatically of the mould side that comprises that the utility model embodiment provides is watered the schematic diagram under the injection mold die opening state of gate structure;
Fig. 8 is the enlarged diagram at B place among Fig. 7.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Consult Fig. 3～shown in Figure 8, automatically cut off the structure that side is watered the mouth of a river in a kind of mould that the utility model embodiment provides, die 3 before comprising, front template 2 with described preceding die 3 secure fit, back die 4 and with the rear pattern plate 5 of described back die 4 secure fit, die 3 cooperates die cavity that is used for moulding glue spare 10 that forms 2 symmetries and the flow passage chamber that is used for the molding runners mouth of a river 11 with back die 4 before described, described rear pattern plate 5 belows are provided with the liftout attachment that glue spare 10 and the runner mouth of a river 11 are ejected, be provided with a side gate mold insert 12 between described die cavity and the flow passage chamber, offer the submersible side gate 121 that is communicated with described die cavity and flow passage chamber respectively on the described side gate mold insert 12, described side gate mold insert 12 is fixedly arranged on the die 4 of described back.
Particularly, be provided with a sprue bush 9 in the centre position of described front template 2 and preceding die 3, described sprue bush 9 not only can make sizing material successfully enter flow passage chamber, can also prevent that the sizing material that enters from flowing out from the slit between front template 2 and the preceding die 3; Described liftout attachment comprises thimble panel 6 and the Ejector Retainer Plate 7 of fixedlying connected with described thimble panel 6, sets firmly some thimbles 13 on the described thimble panel 6, and described thimble 13 is arranged at glue spare 10 and 11 belows, the runner mouth of a river; In addition, described Ejector Retainer Plate 7 belows are provided with a back die holder plate 8, described back die holder plate 8 is fixed on the moving platen (not shown) of injection machine, also offers circular holes in the middle of back die holder plate 8, and the push rod 14 of injection machine can enter from this circular hole and promote Ejector Retainer Plate 7 and travel forward.
The concrete structure figure of the side gate mold insert 12 that present embodiment adopted as shown in Figure 3, Figure 4, because of the thickness of glue spare 10 is between 0.5～1.2mm, shape, angle to the submersible side gate 121 on the side gate mold insert 12 all have designing requirement, submersible side gate 121 is 0.1～0.15mm with the height B of glue spare 10 junctions, the width C at the runner mouth of a river 11 is 1～5mm, and the cross section angle A of submersible side gate 121 is 10～16 °.
The utility model embodiment also provides a kind of and has comprised that cutting off side in the foregoing mould automatically waters the injection mold of the structure at the mouth of a river, this injection mold also comprises front mould seat board 1, back die holder plate 8, described front mould seat board 1 is fixedly arranged on the front template 2, and described back die holder plate 8 is located at Ejector Retainer Plate 7 belows.
Automatically cutting off side in the mould that the utility model embodiment is provided waters the structure at the mouth of a river and adopts the concrete course of work of injection mold of this structure as follows:
After injection mold is finished injection moulding and pressurize, mould is from die sinking between front template 2 and the rear pattern plate 5, the push rod 14 of injector enters from the circular hole of back die holder plate 8, promoting Ejector Retainer Plate 7 travels forward, Ejector Retainer Plate 7 drives the thimble 13 that is fixedly arranged on the Ejector Retainer Plate fixed head 6 and travels forward, thimble 13 is the ejection glue spare 10 and the runner mouth of a river 11 forward, at this moment, glue spare 10 is subjected to the thrust that thimble 13 makes progress with the runner mouth of a river 11, the runner mouth of a river 11 also is subjected to side gate mold insert 12 to its downward shearing force simultaneously, under the effect of making a concerted effort of described thrust and shearing force, separate with glue spare 10 from submersible side gate 121 at the runner mouth of a river 11, glue spare 10 is ejected by thimble 13 with the runner mouth of a river 11 simultaneously then, thereby has realized cutting off automatically in the mould purpose that side is watered the mouth of a river.
Automatically cut off the injection mold that side is watered the structure at the mouth of a river and adopted this structure in the mould that the utility model provides, simple in structure, controllability good, after the die sinking, cut off side by side gate mold insert 12 with the acting in conjunction of thimble 13 and water the mouth of a river 11, make glue spare 10 water the vestige desalination of the mouth of a river 11 cut-off parts in side, and glue spare 10 waters the mouth of a river 11 cut-off parts in side can not produce fatigue strength, thereby guaranteed the exterior quality of glue spare 10, improved the quality of glue spare 10, also avoided artificial removal's side to water the mouth of a river 11, improve the production efficiency of glue spare 10, alleviated personnel labor.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1, cuts off the structure that side is watered the mouth of a river in a kind of mould automatically, comprise preceding die, with described before the die secure fit front template, back die and with the rear pattern plate of described back die secure fit, the flow passage chamber that die and back die cooperate the die cavity that is formed for shaped article and be used for the molding runners mouth of a river before described, described rear pattern plate below is provided with the liftout attachment that product and the runner mouth of a river are ejected, it is characterized in that: be provided with a side gate mold insert between described die cavity and the flow passage chamber, offer the side gate that is communicated with described die cavity and flow passage chamber respectively on the described side gate mold insert.
2, cut off the structure that side is watered the mouth of a river in the mould as claimed in claim 1 automatically, it is characterized in that: described die cavity has 2, is symmetrical arranged.
3, cut off the structure that side is watered the mouth of a river in the mould as claimed in claim 2 automatically, it is characterized in that: described liftout attachment comprises thimble panel and the Ejector Retainer Plate of fixedlying connected with described thimble panel, is installed with some thimbles on the described thimble panel.
4, cut off the structure that side is watered the mouth of a river in the mould as claimed in claim 3 automatically, it is characterized in that: described side gate mold insert is fixedly arranged on the die of described back.
5, cut off the structure that side is watered the mouth of a river in the mould as claimed in claim 4 automatically, it is characterized in that: described Ejector Retainer Plate below is provided with a back die holder plate.
6, a kind of injection mold comprises front mould seat board and back die holder plate, it is characterized in that: also comprise and cut off the structure that side is watered the mouth of a river in the claim 1～5 in each described mould automatically.
7, injection mold as claimed in claim 6 is characterized in that: described front mould seat board is fixedly arranged on the described front template.
8, injection mold as claimed in claim 6 is characterized in that: described back die holder plate is located at described Ejector Retainer Plate below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135019U CN201371558Y (en) | 2009-02-23 | 2009-02-23 | In-mold structure for automatically degating side gates and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135019U CN201371558Y (en) | 2009-02-23 | 2009-02-23 | In-mold structure for automatically degating side gates and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371558Y true CN201371558Y (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920135019U Expired - Fee Related CN201371558Y (en) | 2009-02-23 | 2009-02-23 | In-mold structure for automatically degating side gates and injection mold |
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| CN (1) | CN201371558Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275266A (en) * | 2011-08-11 | 2011-12-14 | 思柏精密模具注塑（无锡）有限公司 | High-precision piece molding die and molding method thereof |
| CN103722698A (en) * | 2013-12-19 | 2014-04-16 | 宁波南方塑料模具有限公司 | Automatic knockout device for sprue and runner in die |
| CN105965803A (en) * | 2016-07-01 | 2016-09-28 | 天津银宝山新科技有限公司 | Side gate breaking structure |
| CN107571463A (en) * | 2016-07-05 | 2018-01-12 | 锦丰科技（深圳）有限公司 | A kind of production mould and its production technology for producing roof lamp light-penetration key |
| EP3357665A1 (en) | 2017-02-06 | 2018-08-08 | Essilor International | Injection molds including de-gating devices and methods for producing molded articles using the same |
| CN109501151A (en) * | 2018-12-29 | 2019-03-22 | 青岛海泰科模具有限公司 | Car thin-wall door-plate injection mold |
-
2009
- 2009-02-23 CN CN200920135019U patent/CN201371558Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275266A (en) * | 2011-08-11 | 2011-12-14 | 思柏精密模具注塑（无锡）有限公司 | High-precision piece molding die and molding method thereof |
| CN103722698A (en) * | 2013-12-19 | 2014-04-16 | 宁波南方塑料模具有限公司 | Automatic knockout device for sprue and runner in die |
| CN103722698B (en) * | 2013-12-19 | 2016-02-10 | 宁波南方塑料模具有限公司 | A kind of mould ingate and runner pickoff |
| CN105965803A (en) * | 2016-07-01 | 2016-09-28 | 天津银宝山新科技有限公司 | Side gate breaking structure |
| CN105965803B (en) * | 2016-07-01 | 2018-03-27 | 天津银宝山新科技有限公司 | A kind of side gate is disconnected to pour structure |
| CN107571463A (en) * | 2016-07-05 | 2018-01-12 | 锦丰科技（深圳）有限公司 | A kind of production mould and its production technology for producing roof lamp light-penetration key |
| EP3357665A1 (en) | 2017-02-06 | 2018-08-08 | Essilor International | Injection molds including de-gating devices and methods for producing molded articles using the same |
| CN109501151A (en) * | 2018-12-29 | 2019-03-22 | 青岛海泰科模具有限公司 | Car thin-wall door-plate injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160214 Address after: 518000 Guangdong province Shenzhen City Pingshan Pingshan biling community Jinbi Road No. 588 Patentee after: Modern precision plastic mould (Shenzhen) Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Longgang Pingshanyou village Jinbi Road No. 588 Patentee before: Fuxing Plastics Mould (Shenzhen) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20180223 |