CN201566097U - Flow channel structure of plastic mold - Google Patents
Flow channel structure of plastic mold Download PDFInfo
- Publication number
- CN201566097U CN201566097U CN2009203191700U CN200920319170U CN201566097U CN 201566097 U CN201566097 U CN 201566097U CN 2009203191700 U CN2009203191700 U CN 2009203191700U CN 200920319170 U CN200920319170 U CN 200920319170U CN 201566097 U CN201566097 U CN 201566097U
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- flow channel
- sleeve pipe
- runner
- mold
- flow passage
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Abstract
The utility model provides a flow channel structure of a plastic mold, which belongs to the field of mold. The utility model settles the technical problems of: easy material head breakage in extracting the material head, affected forming quality and high defective rate, etc. which are caused by coarse flow channel of the prior-art plastic mold. The flow channel structure comprises a flow channel provided on a template. The flow channel comprises a main flow channel and a plurality of branch flow channels communicated with the main flow channel. The outer end of the main flow channel is used for communicating with a nozzle of an injection machine. The inner end of each branch flow channel is used for communicating with the mold chamber of the mold. The utility model is characterized in that the inner wall of each branch flow channel is fixedly provided with a sleeve. According to the utility model, the sleeves are mainly sleeved to the inner wall of the branch flow channels fixedly so that the melted plastic material is injected into the mold chamber through the inner wall of the sleeve thereby preventing the direct contact with the coarse inner walls of the branched flow channels. The one-time quick material head extraction is facilitated for preventing color change and increasing the qualified rate of product.
Description
Technical field
The utility model relates to the mould that is used to make plastic cement products, particularly relates to the flow passage structure of plastic mould, belongs to mould applications.
Background technology
Along with the development of footwear industry, the multilayer sole is more and more universal, makes color, material variation not only to have increased many aesthetic feelings from color, and has obtained bigger raising in quality.
A kind of " die for shoe-sole " (its patent No. is ZL 01201573) with three kinds of different colours and well-bedded sole that be used to produce disclosed as Chinese patent, its concrete structure is by counterdie, every mould, patrix, middle mould and material guiding parts constitute, when being covered on every mould on the counterdie die cavity, and patrix utilizes fastener to press in counterdie every mould, and when material guiding parts and die cap are pressed on the patrix surface simultaneously, first material hole of die cap can with material guiding parts, first material guide hole of patrix is corresponding to be communicated with, second material hole of die cap then with material guiding parts, patrix and corresponding every second guide connection of mould, like this, when Jet forming machine during by the first material hole material feeding of die cap, raw material can via first material guide hole fill with equably be positioned at patrix with every the die cavity of intermode, and form the sole upper strata; When another color raw material was injected by second material hole of die cap, then raw material can inject every the die cavity of mould with following intermode via second material guide hole, and the lower floor of formation sole; After treating that the upper strata of mould insole and lower floor slightly condense, pull open the fastener of patrix, and will raise every mould, then middle mould is covered on counterdie and last intermode, and raise material guiding parts simultaneously, make the sprue of Jet forming machine can be at the 3rd material hole of patrix, the hollow out die cavity material feeding of centering mould, will form the middle level of sole, and because the middle level raw material is to be the high temperature shape when injecting, so the contact surface of upper and lower layer is slightly dissolved, and then it is one-body molded to allow sole have upper strata, middle level and a subsurface material of different color.
Usually the cooling forming time of utilizing back one deck, (so-called stub bar promptly filled up the clout of this layer material hole with the stub bar of preceding one deck, the process that this clout and this layer sole condense through supercooling simultaneously) pulls out, could guarantee that so next goods have higher Forming Quality.
Existing material hole is stairstepping; big mouthful of connection injection machine nozzle of material hole; the osculum of material hole is communicated with die cavity; be convenient to like this break clout osculum place (being also referred to as cast gate); but material hole forms through the drill bit drilling; its inwall is very coarse; when pulling out clout; on the one hand because softer behind the material for sole of shoe that the is adopted process high temperature; because molding time is very fast, the time of pulling out accordingly is just short on the other hand, therefore can occur break situation in material hole of clout usually; thereby influence the Forming Quality of goods, need adopt barb that residual clout is dug out when serious.Particularly when changing the color of each layer of sole, can not remain in and cause the problem of scurrying look in the material hole because of pulling out clean clout last time, thereby cause defect rate to increase.
Summary of the invention
The utility model provides a kind of flow passage structure that is easy to pull out the plastic mould of stub bar.
The purpose of this utility model can realize by following technical proposal: a kind of flow passage structure of plastic mould, comprise the runner of being located on the template, described runner comprises sprue and several runners that communicate with it, the outer end of described sprue is used to be communicated with the nozzle of injection machine, the inner of described each runner is used to be communicated with the die cavity of mould, it is characterized in that the inwall of described each runner fixedly is lined with sleeve pipe.
The flow passage structure of this plastic mould comprises that being located at template (refers to be used for the template of material feeding, generally be in the nozzle of injection machine and the template between the die cavity) on runner, runner is divided into sprue and runner again, be plugged with sleeve pipe in each runner, because the flow process of sprue is shorter, the stub bar that is easy in runner is pulled out, therefore, in the sprue sleeve pipe needn't be set, and the relative aperture runner of sprue is big, helps fixed sleeving.
In the flow passage structure of above-mentioned plastic mould, the inwall of described sleeve pipe has can make the tapering of its outer end internal diameter greater than its inner internal diameter.The outer end of sleeve pipe is used to be communicated with sprue, and the inner of sleeve pipe is used to be communicated with die cavity, and the internal diameter of sleeve pipe the inner is less, is convenient to break fast herein stub bar, can save material again.
In the flow passage structure of above-mentioned plastic mould, described sleeve pipe is made by stainless steel material or copper product.Stainless steel material and copper product all have the good mechanical performance, and hot plasticity is good down, and fineness is good.
In the flow passage structure of above-mentioned plastic mould, the inner wall roughness of described sleeve pipe is less than 0.8 micron.Make the inner wall smooth of sleeve pipe, be convenient to the disposable stub bar of extracting, thereby effectively prevent from the part stub bar to be residued on the inwall of sleeve pipe because of breaking stub bar.
In the flow passage structure of above-mentioned plastic mould, described sleeve pipe is connected by interference with the inwall of described runner.
In the flow passage structure of above-mentioned plastic mould, the outer port part of described sleeve pipe and described runner is by being welded to connect.Sleeve pipe is being interference fitted on the basis of runner inwall, again the outer end of sleeve pipe is being welded mutually with the outer port part of runner, can further improve bonding strength.
Compared with prior art, the flow passage structure of this plastic mould mainly fixedly is lined with sleeve pipe at the inwall of runner, the plastic material of fusion is injected in the die cavity by internal surface of sleeve pipe, thereby avoid directly contacting with the coarse inwall of runner, be convenient to the disposable stub bar of pulling out fast, avoid scurrying look, help improving job efficiency; And sleeve pipe is tapered, not only helps can also saving material breaking stub bar near the die cavity place; In addition, this structure has general dissemination, can be widely used in individual layer sole, double-deck sole, the three layers of various plastic moulds such as sole.
Description of drawings
Fig. 1 is a kind of structural representation of double-deck three look plastic shoes bottom die.
Fig. 2 is the runner distributed architecture schematic diagram of cope match-plate pattern.
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2.
Among the figure, 1 sprue; 2 runners; 3 die cavitys; 4 sleeve pipes; 5 cutting plates; 6 cope match-plate patterns; The 6a guiding gutter; Template in 7; 8 partiting templates; 9 end templates.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Figure 1 shows that a kind of double-deck three look plastic shoes bottom die, be used to make by upper base and the sole of going to the bottom and forming, and go to the bottom and have two kinds of colors, this mould is by cutting plate 5, cope match-plate pattern 6, middle template 7, partiting template 8 and end template 9 are formed, cutting plate 5, the a plurality of runners 2 that have a sprue 1 on cope match-plate pattern 6 and the partiting template 8 and communicate with this sprue 1, each sprue 1 connects a nozzle of three screw injection molding machines respectively, each nozzle can inject a kind of plastic material, be fixed with sleeve pipe 4 in each runner respectively, but each runner on the cutting plate 5 does not communicate with runner on the partiting template 8, its forming process is as follows: earlier cope match-plate pattern 6 and middle template 7 are opened, partiting template 8 and end template 9 closed form the die cavity that part is gone to the bottom, in the sprue of end template 9, inject first look, form a part of going to the bottom; After treating its cooling forming, again the stub bar in the sleeve pipe on the partiting template 84 is pulled out, cutting plate 5 then closes, form another die cavity of going to the bottom by cutting plate 5 and partiting template 8, inject second look, form the another part of going to the bottom from the sprue of cutting plate 5, so far, the injection moulding of going to the bottom is finished, and the stub bar on the cutting plate 5 is pulled out, and opens cutting plate 5 and partiting template 8; At last cope match-plate pattern 6 and middle template 7 are closed, form the die cavity 3 of upper base, inject the 3rd look, form upper base from the sprue of cope match-plate pattern 6, like this, at the bottom of the bilayer three look plastic shoes with regard to moulding.
As shown in Figure 2,5 runners 2 that have a sprue 1 at the middle part of cope match-plate pattern 6 and communicate with this sprue, 4 runners 2 of periphery are communicated with sprue 1 by guiding gutter 6a respectively, all fixedly be lined with sleeve pipe 4 in each runner 2, can adopt metallide to process the inwall of sleeve pipe 4, make its inner wall roughness less than 0.8 micron, the material of sleeve pipe can adopt stainless steel, copper, alloy etc.
Break in the porch of die cavity for the ease of making stub bar, the inwall of sleeve pipe 4 can be made the conical surface with tapering, and make its outer end internal diameter greater than its inner internal diameter, as shown in Figure 3, the outer wall of sleeve pipe 4 is the face of cylinder, the inwall of itself and runner also can weld the outer port part of sleeve pipe 4 with runner 2 by interference fit.
Claims (6)
1. the flow passage structure of a plastic mould, comprise the runner of being located on the template, several runners (2) that described runner comprises sprue (1) and communicates with it, the outer end of described sprue (1) is used to be communicated with the nozzle of injection machine, the inner of described each runner (2) is used to be communicated with the die cavity (3) of mould, it is characterized in that the inwall of described each runner (2) fixedly is lined with sleeve pipe (4).
2. the flow passage structure of plastic mould according to claim 1 is characterized in that, the inwall of described sleeve pipe (4) has makes the tapering of its outer end internal diameter greater than its inner internal diameter.
3. the flow passage structure of plastic mould according to claim 2 is characterized in that, described sleeve pipe (4) is made by stainless steel material or copper product.
4. the flow passage structure of plastic mould according to claim 2 is characterized in that, the inner wall roughness of described sleeve pipe (4) is less than 0.8 micron.
5. according to the flow passage structure of arbitrary described plastic mould of claim 1-4, it is characterized in that described sleeve pipe (4) is connected by interference with the inwall of described runner (2).
6. the flow passage structure of plastic mould according to claim 5 is characterized in that, the outer port part of described sleeve pipe (4) and described runner (2) is by being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203191700U CN201566097U (en) | 2009-12-30 | 2009-12-30 | Flow channel structure of plastic mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203191700U CN201566097U (en) | 2009-12-30 | 2009-12-30 | Flow channel structure of plastic mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201566097U true CN201566097U (en) | 2010-09-01 |
Family
ID=42658382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203191700U Expired - Fee Related CN201566097U (en) | 2009-12-30 | 2009-12-30 | Flow channel structure of plastic mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201566097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538690A (en) * | 2016-06-23 | 2018-01-05 | 温州市原科技有限公司 | A kind of big rising pouring mould of shoes |
| CN111873511A (en) * | 2020-07-28 | 2020-11-03 | 泉州鑫泰鞋材有限公司 | Environment-friendly degradable sole forming process |
-
2009
- 2009-12-30 CN CN2009203191700U patent/CN201566097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538690A (en) * | 2016-06-23 | 2018-01-05 | 温州市原科技有限公司 | A kind of big rising pouring mould of shoes |
| CN111873511A (en) * | 2020-07-28 | 2020-11-03 | 泉州鑫泰鞋材有限公司 | Environment-friendly degradable sole forming process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20131230 |