CN220008667U - Submarine gate chipless demoulding mechanism and injection mould - Google Patents
Submarine gate chipless demoulding mechanism and injection mould Download PDFInfo
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- CN220008667U CN220008667U CN202321342600.7U CN202321342600U CN220008667U CN 220008667 U CN220008667 U CN 220008667U CN 202321342600 U CN202321342600 U CN 202321342600U CN 220008667 U CN220008667 U CN 220008667U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 230000000670 limiting effect Effects 0.000 claims abstract description 27
- 239000003292 glue Substances 0.000 claims description 31
- 239000000463 material Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a submerged-arc non-material scraps demoulding mechanism and an injection mould, wherein the submerged-arc non-material scraps demoulding mechanism comprises a first sliding block, a second sliding block and an inclined guide shifting block; the first sliding block and the second sliding block can both be arranged in a left-right sliding way, a limiting groove is formed in the first sliding block, the second sliding block is positioned on the right side of the first sliding block and provided with a limiting convex part extending into the limiting groove, an elastic piece is further arranged between the first sliding block and the second sliding block, and the inclined guide shifting block and the second sliding block form inclined guide fit; translation of the oblique guide shifting block in the front-back direction drives the first sliding block and the second sliding block to switch between a left sliding mode to a die closing position and a right sliding mode to a die opening position; the first sliding block and the second sliding block form a forming groove together when sliding leftwards to a die closing position, and a submerged gate communicated with the forming groove is arranged on the left side of the first sliding block. Has the effects of short material distance, short material head and difficult occurrence of material scraps.
Description
Technical Field
The utility model relates to the field of injection molds, in particular to a submerged-arc non-material-chip demoulding mechanism and an injection mold with the submerged-arc non-material-chip demoulding mechanism.
Background
The injection mold is used for integrally molding a plastic product, and in order to ensure the appearance of the injection product, a submarine gate (i.e., a submarine gate) is widely used. The hidden gate has the advantages that the hidden gate is generally hidden on the inner surface or the side surface of the plastic part, so that the appearance of the product is not affected; after the product is formed, the product can be automatically broken with the plastic part during ejection, so that the production automation is easy to realize; meanwhile, the submarine gate can be arranged on ribs and columns which cannot be seen on the surface of the product, so that spray marks and air marks caused by spraying cannot be left on the surface of the product during molding. However, since the product is directly ejected forward at the time of demolding, the submarine gate also has the following drawbacks: the submarine gate is submerged below the parting surface and enters the cavity along the oblique direction, so that the glue injection insert of the front mould needs to go deep into the rear mould, and then a glue inlet channel communicated with the glue injection insert is formed in the rear mould and extends obliquely forwards to a transition channel of the cavity, so that the material path is long (namely the glue inlet length is long), and the injection pressure loss is large; the stub bar is long after solidification and molding, and raw materials are wasted; meanwhile, when the product is directly ejected forward, the product can be scraped and bumped with gate scraps to generate scraps, and the production of the scraps seriously affects the production yield and the production efficiency of the product.
Disclosure of Invention
Therefore, the utility model aims to solve the problems and provides a material chip-free demolding mechanism for a submarine gate and an injection mold.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
a non-scraps demolding mechanism for a submarine gate comprises a first sliding block, a second sliding block and an inclined guide shifting block; the first sliding block and the second sliding block can both be arranged in a left-right sliding way, a limiting groove is formed in the first sliding block, the second sliding block is positioned on the right side of the first sliding block and provided with a limiting convex part extending into the limiting groove, an elastic piece is further arranged between the first sliding block and the second sliding block, and the inclined guide shifting block and the second sliding block form inclined guide fit; translation of the oblique guide shifting block in the front-back direction drives the first sliding block and the second sliding block to switch between a left sliding mode to a die closing position and a right sliding mode to a die opening position; the first sliding block and the second sliding block form a forming groove together when sliding leftwards to a die closing position, and a submerged gate communicated with the forming groove is arranged on the left side of the first sliding block.
Further, the mold clamping device further comprises a thimble, wherein a strip-shaped through hole extending in the left-right direction is formed in the first sliding block, the thimble penetrates through the strip-shaped through hole of the first sliding block, and when the first sliding block and the second sliding block slide leftwards to a mold clamping position, the thimble is located behind the second sliding block, and when the first sliding block and the second sliding block slide rightwards to a mold opening position, the thimble is staggered with the second sliding block.
Further, the sliding block comprises a wear plate, and the second sliding block is limited on the wear plate to slide left and right on the wear plate; the wear-resisting plate is provided with an elastic top, the second sliding block is provided with a first limit concave part and a second limit concave part, and when the second sliding block slides to a mold closing position and a mold opening position respectively, the elastic top is clamped into the first limit concave part and the second limit concave part respectively.
Further, the mold opening device further comprises a limiting piece, wherein the limiting piece is arranged on the right side of the second sliding block and is limited by the limiting piece when the second sliding block slides to the mold opening position.
Further, the limiting piece is a limiting screw.
Further, an inclined sliding groove is formed in the second sliding block, and the inclined guide shifting block is slidably assembled in the inclined sliding groove to form inclined guide fit with the second sliding block.
An injection mold comprises a front mold, a rear mold and the material chip-free demolding mechanism of the submerged nozzle; the first sliding block and the second sliding block can be assembled on the rear die in a left-right sliding mode, the inclined guide shifting block is fixed on the front die, the front die is further provided with a glue feeding insert, the glue feeding insert is provided with a glue feeding channel, the first sliding block and the second sliding block are located at the die clamping position when the front die and the rear die are in die clamping, the glue feeding insert is located at the left side of the first sliding block, and the glue feeding channel is communicated with the submarine gate.
Further, an auxiliary shifting block is fixed on the front die, the auxiliary shifting block corresponds to the right side of the second sliding block, the right sides of the auxiliary shifting block and the second sliding block are provided with mutually matched inclined guide surfaces, and when the front die and the rear die are assembled, the inclined guide surfaces of the auxiliary shifting block can be abutted to the inclined guide surfaces of the second sliding block to push the second sliding block to slide leftwards.
Further, the number of the auxiliary shifting blocks is two, and the inclined guide shifting block is positioned between the two auxiliary shifting blocks.
The technical scheme provided by the utility model has the following beneficial effects:
the first sliding block and the second sliding block which form the cavity are arranged to be of a structure capable of sliding left and right, and the submarine gate is arranged on the left side of the first sliding block, so that the glue inlet insert of the front mold is directly flush with the submarine gate of the first sliding block; the length of the stub bar is greatly reduced, the glue feeding length (namely, the material stroke is short), the waste of raw materials is less, and the injection pressure loss is small; when demolding is carried out, the front mold and the rear mold are opened to form a mold, the first sliding block and the second sliding block are driven to slide rightwards, and then the molded product is driven to synchronously move rightwards, so that the product and the material head of the submerged gate are separated from the submerged gate, and then normal demolding operation is carried out, the material head of the submerged gate can be completely separated, no scraping and collision are generated in the whole process, and scraps are not easy to generate.
Drawings
FIG. 1 is a schematic view showing a first structure of a submerged-arc non-scrap demolding mechanism in a mold closing position according to an embodiment;
FIG. 2 is a schematic exploded view of a non-chip demolding mechanism for a submarine gate according to an embodiment;
FIG. 3 is a schematic diagram II of a structure of a non-scrap demolding mechanism of a submarine gate in a mold closing position according to an embodiment;
FIG. 4 is a schematic view showing the structure of the demolding mechanism without scraps for the submarine gate in the mold opening position according to the embodiment;
FIG. 5 is a schematic view of a first slider according to an embodiment;
FIG. 6 is a schematic diagram of a second slider according to an embodiment;
fig. 7 is a schematic diagram of a second slider according to the second embodiment.
Detailed Description
For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The utility model will now be further described with reference to the drawings and detailed description.
Referring to fig. 1 to 7, the present embodiment provides a non-chip demolding mechanism for a submarine gate, which includes a first slider 10, a second slider 20, and an inclined guide block 31; the first sliding block 10 and the second sliding block 20 can both slide left and right, a limiting groove 12 is formed in the first sliding block 10, the second sliding block 20 is positioned on the right side of the first sliding block 10 and provided with a limiting convex part 22 extending into the limiting groove 12, an elastic piece 60 (specifically a spring in the embodiment) is further arranged between the first sliding block 10 and the second sliding block 20, and the inclined guide shifting block 31 and the second sliding block 20 form inclined guide fit; specifically, in this embodiment, the second slider 20 is provided with an inclined chute 21, and the inclined guide block 31 is slidably mounted in the inclined chute 21 to form an inclined guide fit with the second slider 20. Translation of the diagonal guide dial 31 in the fore-aft direction drives the first slide 10 and the second slide 20 to switch between sliding to the left to the closed mold position (as shown in fig. 1 and 3) and sliding to the right to the open mold position (as shown in fig. 4).
The first slide block 10 and the second slide block 20 together form a forming groove 101 (the forming groove is a part of forming a cavity) when sliding leftwards to a mold closing position, and a submerged gate 11 communicated with the forming groove 101 is arranged on the left side of the first slide block 10, namely, the submerged gate 11 is of a horizontal tunnel structure parallel to the left-right direction.
The embodiment also provides an injection mold, which comprises a front mold (not shown), a rear mold (not shown) and the submarine gate scrap-free demolding mechanism; the first slide block 10 and the second slide block 20 can be assembled on the rear mold in a left-right sliding manner, the inclined guide shifting block 31 is fixed on the front mold, the front mold is further provided with a glue inlet insert (not shown), the glue inlet insert is provided with a glue inlet channel, when the front mold and the rear mold are in a mold closing state, the first slide block 10 and the second slide block 20 are located at a mold closing position, the glue inlet insert is located at the left side of the first slide block 10, and the glue inlet channel is communicated with the submerged gate 11.
The first slide block 10 and the second slide block 20 which form the cavity are arranged to be of a structure capable of sliding left and right, the submarine gate 11 is arranged on the left side of the first slide block 10, so that the glue inlet insert of the front die does not need to be inserted too deeply, only the glue inlet channel of the glue inlet insert is enabled to be flush with the submarine gate 11, the length of the glue inlet channel is greatly shortened, namely, the material range is short, the length of the submarine gate 10 is extremely short, and the material head formed in the submarine gate 10 in a solidifying mode is short.
During die assembly, the die assembly action of the front die and the rear die drives the second slide block 20 to slide leftwards through the inclined guide shifting block 31, the second slide block 20 pushes the first slide block 10 to slide leftwards synchronously through the elastic piece 60 until reaching a die assembly position, the hidden gate 11 on the left side of the first slide block 10 is communicated with a glue inlet channel of a glue inlet insert under the die assembly position, the first slide block 10 and the second slide block 20 jointly form a forming groove 101, and then raw materials of the glue inlet channel are injected into a cavity through the hidden gate 11 to finish injection molding.
When demolding is needed, the front mold and the rear mold start to gradually separate, in the process, the front mold drives the second slide block 20 to slide rightwards through the inclined guide shifting block 31, at the moment, the first slide block 10 is kept different under the action of the elastic piece, so that the second slide block 20 drives a formed product to synchronously move rightwards, the product moves rightwards relative to the first slide block 10 to separate the product from the stub bar of the submarine gate 11 together, and the stub bar is separated rightwards in parallel from the submarine gate 11, so that scraping and collision are not caused; as the second slider 20 continues to slide rightward until the limit protrusion 22 abuts against the limit groove 12 of the first slider 10, the first slider 10 moves rightward together with the second slider 20 until reaching the mold opening position. The first slide block 10 is separated from the glue inlet insert at the left side, and after the first slide block 10 is separated, the glue inlet insert is pulled out of the rear die, so that the first slide block 10 cannot scrape and collide with the glue inlet insert to cause scraps.
Further, the demolding mechanism for the submarine gate chipless material further comprises a thimble 40, the first sliding block 10 is provided with a strip-shaped through hole 13 extending in the left-right direction, the thimble 40 is arranged in the strip-shaped through hole 13 of the first sliding block 10 in a penetrating mode, when the first sliding block 10 and the second sliding block 20 slide leftwards to a mold closing position, the thimble 40 is located behind the second sliding block 20, at the moment, the thimble 40 is covered by the second sliding block 20, and the thimble 40 does not participate in molding of products. When the first slide block 10 and the second slide block 20 slide rightwards to the mold opening position, the ejector pins 40 are staggered with the second slide block 20, at the moment, the front of the ejector pins 40 is a product, and the ejector pins 40 move forwards to eject the product, so that the demolding of the product is realized; so set up, simple structure, design benefit. Of course, in other embodiments, the structure of ejecting the product to effect ejection is not limited thereto.
Further, the de-molding mechanism without scraps for the submarine gate further comprises a wear plate 51, and the second sliding block 20 is limited on the wear plate 51 so as to slide left and right on the wear plate 51; specifically, the wear plate 51 is fixed on the rear mold, and the front end of the second slider 20 is restricted by two pressing blocks 54, thereby realizing a left-right sliding on the wear plate 51. The wear plate 51 is provided with an elastic top 52 (such as a bead screw, etc.), the second slider 20 is provided with a first limit concave portion 23 and a second limit concave portion 24, and when the second slider 20 slides to the mold closing position and the mold opening position respectively, the elastic top 52 is respectively clamped into the first limit concave portion 23 and the second limit concave portion 24, so that the position of the second slider 20 can be positioned by the elastic top 52, and the product deviation of the second slider 20 is prevented.
More specifically, the demolding mechanism without scraps for the submarine gate further comprises a limiting piece 53 (a limiting screw in the embodiment), wherein the limiting piece 53 is arranged on the right side of the second sliding block 20, specifically fixed on the rear mold, and limited by the limiting piece 53 when the second sliding block 20 slides to the mold opening position, and at the moment, the second sliding block 20 cannot move right any more, so that the limiting effect is achieved.
Of course, in other embodiments, the positioning manner of the second slider 20 to the mold closing position or the opening position is not limited to the above-described structure.
The auxiliary shifting block 32 is further fixed on the front die, the auxiliary shifting block 32 corresponds to the right side of the second sliding block 20, the right sides of the auxiliary shifting block 32 and the second sliding block 20 are provided with mutually matched inclined guide surfaces, and when the front die and the rear die are assembled, the inclined guide surfaces of the auxiliary shifting block 32 can be abutted against the inclined guide surfaces of the second sliding block 20 to push the second sliding block 20 to slide leftwards, so that the second sliding block 20 is more stable when sliding leftwards. More specifically, the number of the auxiliary shifting blocks 32 is two, the inclined guide shifting block 31 is located between the two auxiliary shifting blocks 32, the thrust force of the second sliding block 20 to the left is more uniform, and the translation effect is better.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. The utility model provides a no bits demoulding mechanism of submarine gate which characterized in that: comprises a first sliding block, a second sliding block and an inclined guide shifting block; the first sliding block and the second sliding block can both be arranged in a left-right sliding way, a limiting groove is formed in the first sliding block, the second sliding block is positioned on the right side of the first sliding block and provided with a limiting convex part extending into the limiting groove, an elastic piece is further arranged between the first sliding block and the second sliding block, and the inclined guide shifting block and the second sliding block form inclined guide fit; translation of the oblique guide shifting block in the front-back direction drives the first sliding block and the second sliding block to switch between a left sliding mode to a die closing position and a right sliding mode to a die opening position; the first sliding block and the second sliding block form a forming groove together when sliding leftwards to a die closing position, and a submerged gate communicated with the forming groove is arranged on the left side of the first sliding block.
2. The submarine gate chipless demolding mechanism according to claim 1, wherein: the mold clamping device comprises a first sliding block, a second sliding block, a thimble and a thimble, wherein the first sliding block is provided with a strip-shaped through hole extending in the left-right direction, the thimble penetrates through the strip-shaped through hole of the first sliding block, and when the first sliding block and the second sliding block slide leftwards to a mold clamping position, the thimble is positioned behind the second sliding block, and when the first sliding block and the second sliding block slide rightwards to a mold opening position, the thimble and the second sliding block are staggered.
3. The submarine gate chipless demolding mechanism according to claim 1, wherein: the second sliding block is limited on the wear plate so as to slide left and right on the wear plate; the wear-resisting plate is provided with an elastic top, the second sliding block is provided with a first limit concave part and a second limit concave part, and when the second sliding block slides to a mold closing position and a mold opening position respectively, the elastic top is clamped into the first limit concave part and the second limit concave part respectively.
4. A submarine gate chipless demoulding mechanism according to claim 1 or 3, wherein: the die further comprises a limiting piece, wherein the limiting piece is arranged on the right side of the second sliding block and limited by the limiting piece when the second sliding block slides to the die opening position.
5. The submarine gate chipless demolding mechanism according to claim 4, wherein: the limiting piece is a limiting screw.
6. The submarine gate chipless demolding mechanism according to claim 1, wherein: the second sliding block is provided with an inclined sliding groove, and the inclined guide shifting block is slidably assembled in the inclined sliding groove to form inclined guide fit with the second sliding block.
7. An injection mold, includes front mould and rear mould, its characterized in that: further comprising a submarine gate scrap-free demolding mechanism according to any one of claims 1 to 6; the first sliding block and the second sliding block can be assembled on the rear die in a left-right sliding mode, the inclined guide shifting block is fixed on the front die, the front die is further provided with a glue feeding insert, the glue feeding insert is provided with a glue feeding channel, the first sliding block and the second sliding block are located at the die clamping position when the front die and the rear die are in die clamping, the glue feeding insert is located at the left side of the first sliding block, and the glue feeding channel is communicated with the submarine gate.
8. The injection mold of claim 7, wherein: the front die is also fixedly provided with an auxiliary shifting block, the auxiliary shifting block corresponds to the right side of the second sliding block, the right sides of the auxiliary shifting block and the second sliding block are provided with mutually matched inclined guide surfaces, and when the front die and the rear die are assembled, the inclined guide surfaces of the auxiliary shifting block can be abutted on the inclined guide surfaces of the second sliding block to push the second sliding block to slide leftwards.
9. The injection mold of claim 8, wherein: the number of the auxiliary shifting blocks is two, and the inclined guide shifting blocks are positioned between the two auxiliary shifting blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321342600.7U CN220008667U (en) | 2023-05-30 | 2023-05-30 | Submarine gate chipless demoulding mechanism and injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321342600.7U CN220008667U (en) | 2023-05-30 | 2023-05-30 | Submarine gate chipless demoulding mechanism and injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220008667U true CN220008667U (en) | 2023-11-14 |
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ID=88691297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321342600.7U Active CN220008667U (en) | 2023-05-30 | 2023-05-30 | Submarine gate chipless demoulding mechanism and injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220008667U (en) |
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2023
- 2023-05-30 CN CN202321342600.7U patent/CN220008667U/en active Active
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