CN209454065U - A kind of injection molding thin-walled step groove mould structure - Google Patents
A kind of injection molding thin-walled step groove mould structure Download PDFInfo
- Publication number
- CN209454065U CN209454065U CN201822236191.8U CN201822236191U CN209454065U CN 209454065 U CN209454065 U CN 209454065U CN 201822236191 U CN201822236191 U CN 201822236191U CN 209454065 U CN209454065 U CN 209454065U
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- Prior art keywords
- thin
- step groove
- lock pin
- walled
- boss
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 39
- 210000002421 cell wall Anatomy 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 17
- 238000010586 diagram Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of injection molding thin-walled step groove mould structures, suitable for forming a kind of printer housing, it include lower mode, upper cores, lateral location between upper cores and lower mode is set and cooperatively forms the side form benevolence of type chamber with upper cores and lower mode, rooved face lock pin group is interspersed in upper cores and is located in type chamber for the rooved face of injection moulding step slot and side；First boss is integrally formed with the lower mode；Second boss is integrally formed with the lower mode and is located at the first boss side；Step cushion block against second boss surface and offers several through-holes to match with the push-rod hole；The first boss surface and step cushion block surface are used to form the back side of step groove.By pushing step cushion block that the moulding of thin-walled step groove is pushed to release when demoulding, to enable the moulding uniform stressed of entire thin-walled step groove and be not easy to be damaged, to improve the yields of thin-walled step groove moulding.
Description
Technical field
The utility model relates to printer housing injection molding field more particularly to a kind of injection molding thin-walled steps
Channel mould lamps structure.
Background technique
Profiled part, running gate system, guiding mechanism, demoulding mechanism, tendency parting are generally comprised in injection molding mode structure and are taken out
Core mechanism, heating and cooling system, exhaust system and other component are generally divided into dynamic model and cover half in profiled part, and dynamic model is
Mould is moved, includes lower mode on dynamic model, it includes lower die Renhe side form benevolence, upper cores and lower die on cover half that cover half, which is stent,
Benevolence and side form benevolence fasten to form injection molding cavity, by the injection hole injection molding workpiece in upper cores, after workpiece shaping, and dynamic model band
Lower mode movement, then moulding is released by thimble (push rod), complete injection moulding process.
There is kind of a thin-walled step slot structure in a kind of existing printing and shell, since thickness of groove bottom is thin, is pushed away in thimble (push rod)
Pushing course bracket groove bottom can be caused to deform due to single-point stress during the dynamic thin-walled step groove back side, to make entire shell
Quality be affected, it is not high so as to cause yields.
Therefore, the existing technology needs to be improved and developed.
Utility model content
In view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of injection molding thin-walled step grooves
Mould structure, it is intended to which solving existing injection mould can cause to push away during pushing the thin-walled step groove back side due to single-point stress
Slot bottom deformation during dynamic and the problem for causing quality bad.
The technical solution of the utility model is as follows:
A kind of injection molding thin-walled step groove mould structure includes: lower die suitable for forming a kind of printer housing
Benevolence, the upper cores being connected on lower mode, be arranged in the lateral location between upper cores and lower mode and with upper cores and lower die
Benevolence cooperatively forms the side form benevolence of type chamber, offers several push-rod holes on lower mode, further includes having:
Rooved face lock pin group, be interspersed in upper cores and be located at type chamber in for injection molding thin-walled step groove rooved face and
Side；
First boss is integrally formed with the lower mode；
Second boss is integrally formed with the lower mode and is located at the first boss side；
Step cushion block against second boss surface and offers several through-holes to match with the push-rod hole；
The first boss surface and step cushion block surface are used for the back side of forming thin-walled step groove.
Further, the through-hole on the step cushion block offers two rows.
Further, two exhausting hole is located at close to the cell wall position of thin-walled step groove.
Further, integrally formed with rooved face boss in the upper cores, the rooved face boss is located at thin-walled step groove
The middle position of type chamber and upper cores are divided into the first lock pin area and the second lock pin area for the region of forming thin-walled step groove.
It further, include the first lock pin and the second lock pin in the surface lock pin group, first lock pin and second insert
Core is located at first lock pin area and the second lock pin area, and first lock pin and the second lock pin simultaneously abut rooved face boss.
Further, the forming gap between the step cushion block and the rooved face lock pin group is 1.6mm.
Further, the step cushion block uses metal step cushion block.
Further, the outer profile of the step cushion block and the step profile of the thin-walled step groove match.
Compared with prior art, the utility model is by lower mode, upper cores and rooved face lock pin group, first boss, and
The injection molding cavity of thin-walled step groove is collectively formed in two boss and step cushion block, thus a kind of thin-walled step groove of injection molding, and
By pushing step cushion block that the moulding of thin-walled step groove is pushed to release when demoulding, to make the injection molding of entire thin-walled step groove
Part energy uniform stressed and be not easy to be damaged, to improve the yields of thin-walled step groove moulding.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram of the utility model embodiment.
Fig. 2 is the structural schematic diagram of slot in printer housing.
Fig. 3 is the structural schematic diagram of the lower die Renhe step cushion block of the utility model embodiment.
Fig. 4 is the cross-sectional view of the utility model embodiment.
Each label in figure: 100, lower mode；110, push-rod hole；120, first boss；130, second boss；200, upper mold
Benevolence；210, gum-injecting port；220, rooved face boss；230, the first lock pin area；240, the second lock pin area；300, side form benevolence；400, slot
Surface lock pin group；410, the first lock pin；420, the second lock pin；500, step cushion block；510, through-hole；520, blind hole；600, thin-walled
Step groove；700, shell.
Specific embodiment
The utility model provides a kind of injection molding thin-walled step groove mould structure, for make the purpose of this utility model,
Technical solution and effect are clearer, clear, referring to the drawings and give an actual example to the utility model further description.It answers
Work as understanding, specific embodiment described herein is only used to explain the utility model, is not used to limit the utility model.
As Figure 1 and Figure 4, a kind of injection molding thin-walled step groove mould structure, suitable for forming a kind of printer housing
700, it include lower mode 100, fastening on lower mode 100 has upper cores 200, gum-injecting port 210 is offered in upper cores 200,
Be mainly used for injecting glue, lateral location between upper cores 200 and lower mode 100 fastening has side form benevolence 300, side form benevolence 300 with
Upper cores 200 and lower mode 100 cooperatively form type chamber, and type is intracavitary to be used for injection molding printer housing 700 and thin-walled step
600 structure of slot, as shown in Fig. 2, thin-walled step groove 600 includes the first slot position 610 and the second slot in printer housing 700
Position 620, the first slot position 610 is different from the floor height of the second slot position 620, forms step groove, thin-walled step groove 600 is for difference
Printer part installation.
As shown in Figure 3, Figure 4, several push-rod holes 110 are offered on lower mode 100, push-rod hole 110 is pushed away for interting push rod
Bar belongs to existing common structure, is not drawn into diagram.As shown in Figure 1, after upper cores 200 are separated with lower mode 100, by push rod
Molding 600 structure of thin-walled step groove is released, further includes having rooved face lock pin group 400, rooved face lock pin group 400 is interspersed in upper mold
Benevolence 200 is simultaneously located in type chamber for the rooved face of injection molding thin-walled step groove 600 and side；It is integrally formed in upper cores 200
There is rooved face boss 220, rooved face boss 220 is located at the middle position of 600 type chamber of thin-walled step groove and upper cores 200 are used for
The region of forming thin-walled step groove 600 is divided into the first lock pin area 230 and the second lock pin area 240, and rooved face lock pin group 400 includes
First lock pin 410 and the second lock pin 420, first lock pin 410 and the second lock pin 420 are located at first lock pin area
230 and the second lock pin area 240, first lock pin 410 and the second lock pin 420 and against rooved face boss 220 and between do not have
Gap, then the first lock pin 410 is consistent with the lower surface height of rooved face boss 220, under the first lock pin 410 and the second lock pin 420
The height on surface is inconsistent, thus the lower surface of the first lock pin 410 and rooved face boss 220 shape after injection molding in injection moulding process
At the bottom surface of the first slot position 610 of thin-walled step groove 600, the lower surface of the second lock pin 420 forms the second slot position 620 after injection molding
Bottom surface, to form the bottom surface of thin-walled step groove 600；The side of rooved face lock pin group 400, rooved face boss 220 side
The cell wall that injection molding cavity is used for forming thin-walled step groove 600 is formed between the medial surface of lower mode 100.And the first lock pin area 230
And second lock pin area 240 setting, can in order to the positioning of the first lock pin 410 and the second lock pin 420, rooved face boss 220
Two sides are easily installed and positioned respectively as the benchmark of the first lock pin 410 and the second lock pin 420, thus be conducive to moulding at
Type.
As shown in figure 3, integrally formed with first boss 120, first boss 120 and the lower mode on lower mode 100
100 are integrally formed, and on lower mode 100 and are located at the side of first boss 120 integrally formed with second boss 130, against the
Two boss, 130 surface is provided with step cushion block 500, offers on step cushion block 500 several logical with the push-rod hole 110 matching
Hole 510 is interspersed with push rod in through-hole 510.120 surface of first boss and 500 surface of step cushion block are respectively used to forming thin-walled
First slot position 610 of rank slot 600 and the back side of the second slot position 620, as shown in figure 4, blind hole 520 is offered on step cushion block 500,
Blind hole 520 is used for inlay card push rod, and push rod of the inlay card in blind hole 520 can drive step cushion block 500 to move.
Since the base area of thin-walled step groove 600 is larger, the step groove that will lead to moulding is directly released using push rod
Quality problems, especially thin-walled injection moulding part are generated because of local pressure, are also easy to produce quality problems because of push rod ejection, therefore,
Step cushion block 500 is first pushed by push rod and makes entire 600 uniform stressed of thin-walled step groove and releases, in pushing away by other parts
Bar touches moulding and step slot structure is made to fall off mold, the architecture quality at effective protection thin-walled step groove.
Through-hole 510 on step cushion block 500 offers two rows, and two exhausting holes 510 release the push rod in through-hole 510 again
When can make slot stress more evenly, avoid one side stress concentrate and damage moulding.Two exhausting holes 510 are located at close
The cell wall position of thin-walled step groove 600, cell wall position are the most thick position of slot, and the position of slot is pushed by push rod, will not be right
Moulding damage.
Forming gap between the step cushion block 500 and the rooved face lock pin group 400 is 1.6mm, then after molding
The slot bottom thickness of thin-walled step groove is 1.6mm, belongs to thin-walled injection moulding part.
Step cushion block 500 uses metal step cushion block 500.The surface of metal step cushion block 500 is smooth, injection molding material not easy to stick
Material, conducive to the demoulding of thin-walled step groove.
The step profile of the outer profile and the step groove of the step cushion block 500 matches, and is pushing step cushion block 500
During enable the bottom surface of entire step groove by thrust.Moulding will not be damaged.
The utility model proposes a kind of injection molding thin-walled step groove mould structure, pass through lower mode 100, upper cores
200 and rooved face lock pin group 400, first boss 120, second boss 130 and step cushion block 500 thin-walled step groove is collectively formed
600 injection molding cavity, thus a kind of thin-walled step groove 600 of injection molding, and in demoulding by pushing step cushion block 500 to push away
The moulding of dynamic thin-walled step groove is released, thus enable the moulding uniform stressed of entire thin-walled step groove and be not easy to be damaged,
To improve the yields of thin-walled step groove moulding.
It should be understood that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, it can be modified or changed according to the above description, and all these modifications and variations all should belong to the appended power of the utility model
The protection scope that benefit requires.
Claims (8)
1. a kind of injection molding thin-walled step groove mould structure includes lower mode suitable for forming a kind of printer housing, even
The upper cores on lower mode are connect, the lateral location between upper cores and lower mode is set and are cooperated with upper cores and lower mode
The side form benevolence of shape forming cavity offers several push-rod holes on lower mode, which is characterized in that further include having:
Rooved face lock pin group is interspersed in upper cores and is located in type chamber for the rooved face of injection molding thin-walled step groove and side
Face；
First boss is integrally formed with the lower mode；
Second boss is integrally formed with the lower mode and is located at the side of the first boss；
Step cushion block against second boss surface and offers several through-holes to match with the push-rod hole；
The first boss surface and step cushion block surface are used for the back side of forming thin-walled step groove.
2. injection molding thin-walled step groove mould structure according to claim 1, which is characterized in that on the step cushion block
Through-hole offer two rows.
3. injection molding thin-walled step groove mould structure according to claim 2, which is characterized in that two exhausting hole point
It Wei Yu not be close to the cell wall position of thin-walled step groove.
4. injection molding thin-walled step groove mould structure according to claim 1, which is characterized in that one in the upper cores
Body formed have a rooved face boss, the rooved face boss be located at the middle position of thin-walled step groove profile chamber and upper cores be used at
The region of type thin-walled step groove is divided into the first lock pin area and the second lock pin area.
5. injection molding thin-walled step groove mould structure according to claim 4, which is characterized in that in the surface lock pin
Group includes the first lock pin and the second lock pin, and first lock pin and the second lock pin are located at first lock pin area and second
Lock pin area, first lock pin and the second lock pin simultaneously abut rooved face boss.
6. injection molding thin-walled step groove mould structure according to claim 5, which is characterized in that the step cushion block with
Forming gap between the rooved face lock pin group is 1.6mm.
7. injection molding thin-walled step groove mould structure according to claim 6, which is characterized in that the step cushion block is adopted
With metal step cushion block.
8. injection molding thin-walled step groove mould structure according to claim 1-7, which is characterized in that described
The outer profile of rank cushion block and the step profile of the thin-walled step groove match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822236191.8U CN209454065U (en) | 2018-12-28 | 2018-12-28 | A kind of injection molding thin-walled step groove mould structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822236191.8U CN209454065U (en) | 2018-12-28 | 2018-12-28 | A kind of injection molding thin-walled step groove mould structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209454065U true CN209454065U (en) | 2019-10-01 |
Family
ID=68042740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822236191.8U Expired - Fee Related CN209454065U (en) | 2018-12-28 | 2018-12-28 | A kind of injection molding thin-walled step groove mould structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209454065U (en) |
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2018
- 2018-12-28 CN CN201822236191.8U patent/CN209454065U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20191001 |