CN215151355U - Injection mold convenient to get rid of runner vestige - Google Patents
Injection mold convenient to get rid of runner vestige Download PDFInfo
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- CN215151355U CN215151355U CN202121061650.9U CN202121061650U CN215151355U CN 215151355 U CN215151355 U CN 215151355U CN 202121061650 U CN202121061650 U CN 202121061650U CN 215151355 U CN215151355 U CN 215151355U
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- lower template
- runner
- template
- fixed
- injection mold
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Abstract
The utility model relates to an injection mold convenient to get rid of runner vestige, it includes: the device comprises a bottom plate, vertical plates fixed at the top of the bottom plate at intervals, a lower template fixed at the top of the vertical plates, movable components arranged at two sides of the lower template oppositely, an upper template arranged on the movable components, a sprue fixed on the upper template and extending to the upper surface of the lower template, and a first thimble penetrating through the lower template; the utility model discloses injection mold convenient to get rid of runner vestige simple structure, molten plastic pellet pours into through the runner, in outer runner introduces the sprue of lower bolster with the meltwater, the shaping intracavity shaping of slider is introduced with the meltwater through the arc portion of assisting runner and first thimble, because arc portion is very little with the area of contact in shaping chamber, consequently the shaping is accomplished the back, the pouring vestige of staying on the product is not obvious, convenient subsequent cleaing away, also can save the plastic material correspondingly simultaneously, practice thrift the cost.
Description
Technical Field
The utility model belongs to injection mold technology field, concretely relates to injection mold convenient to get rid of runner vestige.
Background
Injection molding is a method for producing and molding industrial products, the products are generally made of rubber or plastic, plastic particles are injected into a mold through a sprue after being melted, and molded products can be obtained after cooling. The product is generally used in the industries of mobile phones, portable computers, communication, electric appliances, electronics, toys and the like.
In the prior art, the contact area of a pouring gate and a molding cavity is large, so that a particularly obvious pouring trace can be left after a product is molded, and the residual trace is not easy to remove due to the large contact area, and the molten material and the cost are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an injection mold convenient to get rid of runner vestige in order to overcome prior art not enough.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an injection mold for facilitating removal of a gate mark, comprising:
the device comprises a bottom plate, vertical plates fixed at the top of the bottom plate at intervals, a lower template fixed at the top of the vertical plates, movable components arranged at two sides of the lower template oppositely, an upper template arranged on the movable components, a sprue fixed on the upper template and extending to the upper surface of the lower template, and a first thimble penetrating through the lower template;
the lower template is provided with a first cooling water channel which is communicated with the inside and the outside and an inner flow channel which is arranged at the top of the lower template;
the movable assembly comprises sliding blocks which are oppositely arranged on the lower template, forming cavities are arranged on the sliding blocks at intervals, and when the upper template moves up or down on the lower template, the sliding blocks move back to back or oppositely on the lower template;
the inner runner comprises a main runner arranged at the top of the lower template and auxiliary runners connected to two ends of the main runner;
the first ejector pin is provided with an arc-shaped part which is connected with the auxiliary flow channel and the forming cavity.
Optimally, it still includes the setting first backup pad on the bottom plate, fixes second backup pad on the first backup pad, fix on the bottom plate and support the establishment the support column of lower bolster lower surface and fix on the second backup pad and support the establishment the jacking post of cope match-plate pattern lower surface.
Optimally, the device also comprises a guide post arranged on the lower template in a penetrating way, a guide sleeve which is embedded on the upper template and is matched with the guide post for use, and a stop post and a second thimble which are arranged on the lower template in a penetrating way.
Preferably, the movable assembly further comprises a wear-resistant block fixed on the lower template, pressing strips pressed on two sides of the sliding block and fixed on the lower template, a wear-resistant sheet fixed on the outer side of the sliding block, and an inclined guide post penetrating through the upper template and penetrating through the sliding block and the wear-resistant block.
Optimally, the pouring gate is provided with an outer runner with the cross section in an isosceles trapezoid shape, and the upper bottom of the isosceles trapezoid is smaller than the lower bottom.
Optimally, the stop pillar extends to the bottom of the main runner, and the first ejector pin and the second ejector pin extend to the upper surface of the lower template.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses injection mold convenient to get rid of runner vestige simple structure, molten plastic pellet pours into through the runner, in outer runner introduces the sprue of lower bolster with the meltwater, the shaping intracavity shaping of slider is introduced with the meltwater through the arc portion of assisting runner and first thimble, because arc portion is very little with the area of contact in shaping chamber, consequently the shaping is accomplished the back, the pouring vestige of staying on the product is not obvious, convenient subsequent cleaing away, also can save the plastic material correspondingly simultaneously, practice thrift the cost.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a cross-sectional view of the present invention;
FIG. 4 is a diagram showing the position relationship between the movable assembly and the lower template;
FIG. 5 is a schematic view of a bottom part of the present invention;
FIG. 6 is a schematic diagram of a portion of the structure of FIG. 4 according to the present invention;
fig. 7 is a schematic structural view of the lower template of the present invention;
fig. 8 is a cross-sectional view of the lower template of the present invention;
fig. 9 is a schematic structural view of the upper template of the present invention;
fig. 10 is a schematic structural view of the slide block of the present invention;
fig. 11 is a cross-sectional view of a gate of the present invention;
fig. 12 is a schematic structural view of the first thimble of the present invention;
fig. 13 is a diagram of the position relationship among the catch post, the first thimble and the second thimble of the present invention;
description of reference numerals:
1. a base plate; 2. a vertical plate; 3. a lower template; 301. a first cooling water path; 302. a first groove; 303. a second groove; 304. a third groove; 305. an inner flow passage; 3051. a main flow channel; 3052. an auxiliary flow channel; 4. mounting a template; 401. a second cooling water path; 5. a top plate; 6. a fixing ring; 7. a gate; 701. an outer flow passage; 8. a first support plate; 9. a second support plate; 10. a support pillar; 11. jacking the column; 12. a guide post; 13. a guide sleeve; 14. a movable component; 141. a slider; 1411. a molding cavity; 142. a wear-resistant block; 143. a wear resistant sheet; 144. layering; 145. an inclined guide post; 15. a bumping post; 16. a first thimble; 161. an arc-shaped portion; 17. a second thimble.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
As shown in fig. 1 to 13, the utility model discloses the good injection mold of shaping is used for the injection moulding of plastic product usually to improve the qualification rate of shaping product, it mainly includes bottom plate 1, riser 2, lower bolster 3, cope match-plate pattern 4, roof 5, solid fixed ring 6, runner 7, first backup pad 8, second backup pad 9, support column 10, jacking post 11, guide post 12, uide bushing 13, movable assembly 14, bumping post 15, first thimble 16 and second thimble 17 etc..
Wherein the bottom plate 1 is a rectangular metal plate made of stainless steel, and the bottom plate 1 mainly plays a supporting role. The vertical plate 2 has two blocks, and they are fixed on the upper surface of the bottom plate 1 at intervals (the fixation can be realized by a screw fastening mode). The lower template 3 is fixed on the upper surfaces of the two vertical plates 2 (long screws can penetrate through the bottom plate 1 and the vertical plates 2 and then are screwed on the lower template 3 to realize fixation). As shown in fig. 7, the lower mold plate 3 is provided with a first cooling water channel 301, a first groove 302, a second groove 33, a third groove 304 and an inner flow channel 305. The first cooling water path 301 is arranged inside the lower template 3 (the first cooling water path 301 has two functions, on one hand, hot water can be introduced into the first cooling water path 301 before the molten plastic is poured to improve the initial temperature of the lower template 3 and prevent the molten plastic from being solidified in advance due to too low temperature of the lower template 3, which is not beneficial to molding, and on the other hand, cooling water can be introduced into the first cooling water path 301 after the molten plastic is poured, so that the molding of a product is accelerated and the injection molding efficiency is improved). The inner runner 305 is opened at the top of the lower mold plate 3 (as shown in fig. 8, the inner runner 305 is composed of a main runner 3051 and an auxiliary runner 3052, and two auxiliary runners 3052 are connected to both ends of the main runner 3051 obliquely downward; in this embodiment, molten plastic poured from the outside flows into the cavity through the main runner 3051 and the auxiliary runner 3052 for molding). The two first grooves 302 are oppositely arranged on the upper surface of the lower template 3 (the two first grooves 302 are positioned on two sides of the inner runner 305). There are four second grooves 303, wherein every two second grooves 303 are formed on the lower surface of one first groove 302, and a third groove 304 is formed on the lower surface of the second groove 303 (the third groove 304 is in a rounded rectangular shape).
As shown in fig. 4, there are two sets of movable assemblies 14, which are respectively disposed on two sides of the lower mold plate 3, and each set of movable assemblies 14 mainly includes a slide block 141, a wear-resistant block 142, a wear-resistant sheet 143, a pressing bar 144, an inclined guide post 145, and the like. The upper mold plate 4 is disposed above the movable assembly 14 (as shown in fig. 9, a second cooling water path 401 is disposed in the upper mold plate 4, and the function of the second cooling water path 401 is the same as that of the first cooling water path 301, which is not described herein again). The wear-resistant blocks 142 are fixed in the second grooves 303 by means of screw fastening, and the sliding blocks 141 are slidably disposed on the two wear-resistant blocks 142 and placed in the first grooves 302 (as shown in fig. 10, two molding cavities 1411 are spaced on the sliding blocks 141, and when the two sliding blocks 11 are combined together, the two opposite molding cavities 1411 form the shape of a product). The two pressing strips 144 are pressed on two sides of the sliding block 141 and fixed on the lower template 3. The wear-resistant plate 143 is fixed to the outer side of the slide block 141 by a screw fastening method, and the inclined guide post 145 is fixed to the top of the upper plate 4 and extends into the third groove 304 through the upper plate 4, the slide block 141 and the wear-resistant block 142 (in the process of ejecting the upper plate 4, due to the design that the inclined guide post 145 is inclined, when the inclined guide post 145 rises, the slide block 141 is driven to move back and forth, that is, to slide between the bead 144 and the wear-resistant block 142).
The top plate 5 is fixed on the upper surface of the upper template 4 (the fixation can be realized by a screw fastening mode; in the embodiment, the middle part of the top plate 5 is provided with a through hole). The fixing ring 6 is fixed on the upper surface of the top plate 5 by screw fastening. The gate 7 penetrates through the through hole of the top plate 5 and is fixed on the upper template 4, and the other end of the gate 7 penetrates through the upper template 4 and the slide block 141 and extends to the upper surface of the lower template 3 (as shown in fig. 11, the gate 7 is provided with an outer runner 701 communicated with the inner runner 305, the cross section of the outer runner is in an isosceles trapezoid shape, the upper bottom of the isosceles trapezoid is smaller than the lower bottom, so that when plastic in a molten state flows through the outer runner 701, the situation of blockage cannot occur, in the embodiment, the top of the gate 7 is in a bowl shape, and the molten plastic can flow conveniently).
The first supporting plate 8 is arranged above the bottom plate 1, and the second supporting plate 9 is fixed on the upper surface of the first supporting plate 8 in a screw fastening mode. Four support columns 10 are fixed on the bottom plate 1 and penetrate through the first support plate 8 and the second support plate 9 to abut against the lower surface of the lower template 3 (the number of the support columns 10 can be determined according to specific conditions). Four jacking columns 11 are fixed on the second supporting plate 9 and penetrate through the lower template 3 to abut against the lower surface of the upper template 4 (after a product is formed, the jacking columns 11 are used for jacking the upper template 4 so as to conveniently take out the product, the jacking columns 11 are driven by a lifting cylinder to move, the cylinder body of the lifting cylinder is fixed on the lower surface of the bottom plate 1, and the piston rod penetrates through the bottom plate 1 and is connected with the first supporting plate 8).
The first thimble 16 and the second thimble 17 are fixed on the second support plate 9 and penetrate through the lower mold plate 3 (as shown in fig. 13, the first thimble 16 has an arc-shaped portion 161 communicating the auxiliary runner 3052 and the molding cavity 1411, so that the molten plastic flowing from the gate 7 flows into the molding cavity 1411 through the main runner 3051, the auxiliary runner 3052 and the arc-shaped portion 161, and since the contact area between the arc-shaped portion 161 and the molding cavity 1411 is very small, a pouring trace left on a product after molding is not obvious, which is convenient for subsequent cleaning, and meanwhile, the plastic material can be saved correspondingly, and the cost is saved). The bumping post 15 is fixed on the second supporting plate 9 and extends to the bottom of the main runner 3051 through the lower mold plate 3 (the bumping post 15 can prevent the outflow of the molten plastic). After the product is injection molded, the jacking column 11 jacks the upper mold plate 4 away from the lower mold plate 3 (in the process of lifting the upper mold plate 4, due to the design of the inclined guide column 145, the sliding block 141 is driven to move back and forth when the inclined guide column 145 lifts, that is, the sliding block 141 slides between the pressing strip 144 and the wear-resistant block 142), the sliding block 141 is opened under the driving of the inclined guide column 145, and at this time, the first ejector pin 16 and the second ejector pin 17 push out the plastic product (in this embodiment, the product can fall freely, and the product can be sucked by a manipulator and placed on a conveyor belt to realize transportation).
The utility model discloses injection mold convenient to get rid of runner vestige simple structure, the molten plastic pellet pours into through runner 7, outer runner 701 introduces the meltwater in sprue 3051 of lower bolster 3, the arc portion 161 through assisting runner 3052 and first thimble 16 introduces the meltwater shaping chamber 1411 internal mold of slider 141, because arc portion 161 and shaping chamber 1411's area of contact is very little, consequently, the shaping is accomplished the back, the pouring vestige of staying on the product is not obvious, convenient subsequent clear away, also can save the plastic material correspondingly simultaneously, and the cost is saved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. An injection mold convenient for removing gate marks, comprising:
the device comprises a bottom plate (1), vertical plates (2) fixed at the top of the bottom plate (1) at intervals, a lower template (3) fixed at the top of the vertical plates (2), movable assemblies (14) oppositely arranged at two sides of the lower template (3), an upper template (4) arranged on the movable assemblies (14), a sprue (7) fixed on the upper template (4) and extending to the upper surface of the lower template (3), and a first ejector pin (16) penetrating through the lower template (3);
the lower template (3) is provided with a first cooling water channel (301) which is communicated with the inside and the outside and an inner flow channel (305) which is arranged at the top of the lower template;
the movable assembly (14) comprises sliding blocks (141) which are oppositely arranged on the lower template (3), forming cavities (1411) are arranged on the sliding blocks (141) at intervals, and when the upper template (4) ascends or descends on the lower template (3), the sliding blocks (141) move back to back or opposite to each other on the lower template (3);
the inner runner (305) comprises a main runner (3051) arranged at the top of the lower template (3) and auxiliary runners (3052) connected to two ends of the main runner (3051);
the first thimble (16) has an arcuate portion (161) connecting the secondary runner (3052) and the molding cavity (1411).
2. An injection mold for facilitating removal of gate vestige as recited in claim 1, wherein: it is still including setting up first backup pad (8) on bottom plate (1), fixing second backup pad (9) on first backup pad (8), fix on bottom plate (1) and support and establish support column (10) and the fixing of lower bolster (3) lower surface on second backup pad (9) and support and establish jacking post (11) of cope match-plate pattern (4) lower surface.
3. An injection mold for facilitating removal of gate vestige as recited in claim 1, wherein: the lower die plate is characterized by further comprising a guide post (12) arranged on the lower die plate (3) in a penetrating mode, a guide sleeve (13) which is embedded on the upper die plate (4) and matched with the guide post (12) for use, a blocking post (15) arranged on the lower die plate (3) in a penetrating mode, and a second ejector pin (17).
4. An injection mold for facilitating removal of gate vestige as recited in claim 1, wherein: the movable assembly (14) further comprises a wear-resistant block (142) fixed on the lower template (3), pressing strips (144) pressed on two sides of the sliding block (141) and fixed on the lower template (3), a wear-resistant sheet (143) fixed on the outer side of the sliding block (141), and an inclined guide post (145) penetrating through the upper template (4) and penetrating through the sliding block (141) and the wear-resistant block (142).
5. An injection mold for facilitating removal of gate vestige as recited in claim 1, wherein: the pouring gate (7) is provided with an outer runner (701) with an isosceles trapezoid-shaped section, and the upper bottom of the isosceles trapezoid is smaller than the lower bottom.
6. An injection mold for facilitating removal of gate vestige as recited in claim 3, wherein: the blocking column (15) extends to the bottom of the main flow channel (3051), and the first ejector pin (16) and the second ejector pin (17) extend to the upper surface of the lower template (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121061650.9U CN215151355U (en) | 2021-05-18 | 2021-05-18 | Injection mold convenient to get rid of runner vestige |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121061650.9U CN215151355U (en) | 2021-05-18 | 2021-05-18 | Injection mold convenient to get rid of runner vestige |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215151355U true CN215151355U (en) | 2021-12-14 |
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ID=79370941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121061650.9U Active CN215151355U (en) | 2021-05-18 | 2021-05-18 | Injection mold convenient to get rid of runner vestige |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215151355U (en) |
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2021
- 2021-05-18 CN CN202121061650.9U patent/CN215151355U/en active Active
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