CN102514178A - Hollow blow molding machine and die head core rod thereof - Google Patents
Hollow blow molding machine and die head core rod thereof Download PDFInfo
- Publication number
- CN102514178A CN102514178A CN2012100019973A CN201210001997A CN102514178A CN 102514178 A CN102514178 A CN 102514178A CN 2012100019973 A CN2012100019973 A CN 2012100019973A CN 201210001997 A CN201210001997 A CN 201210001997A CN 102514178 A CN102514178 A CN 102514178A
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- Prior art keywords
- die head
- core rod
- head core
- runner
- layer
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 28
- 239000003292 glue Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention relates to plastic machinery equipment and particularly discloses a hollow blow molding machine and a die head core rod thereof. In the die head core rod, at least two or more than two layers of shunting channels are longitudinally arranged along a main body of the die head core rod. The hollow blow molding machine comprises an extruder, a parison die head, a blowing device, a die assembly mechanism, a parison thickness control system and a transmission mechanism, wherein the parison die head adopts the die head core rod. The hollow blow molding machine and the die head core rod adopt multi-layer design, facilitate ensuring uniform wall thickness of blanking parisons and prevent fusion line from appearing on products, so that the performance in the aspects of pressure resistance, aesthetics and the like of the products can be improved, and the quality of the products is better ensured.
Description
Technical field
The present invention relates to plastics machinery equipment, relate in particular to a kind of blow molding machine and die head core rod thereof.
Background technology
Blowing (blow moulding) also claim hollow blow molding, is a kind of development plastic working method rapidly.Thermoplastic resin is through the tubular plastic parison of extruding or injection moulding obtains; (or being heated to soft state) places split cavity while hot, in parison, feeds compressed air behind the mold closing immediately, makes the plastic parison inflation and is close on the mould inner wall; Through cooling and demolding, promptly obtain various hollow products.
The extrusion type blow molding machine is the common device of this technology; Comprise extruder and parison die, huffing device, clamping, parison thickness control system and transmission mechanism; Wherein parison die is one of vitals of decision blow-molded article quality, need be to its die head core rod optimal design.
In the prior art, be provided with runner and spreader in the die head core rod (being commonly called as the torpedo head), fused materials can prevent the generation at moulding dead angle through getting into die cavity through runner again behind the spreader; Simultaneously, because material is non-directional at the cast gate place of spreader, also help improving product surface quality.
But also there is certain defective in the die head core rod of existing blow molding machine; This be because: this die head core rod all adopts the design of individual layer, promptly has only one deck runner (this layer runner separates with a component stream shuttle), and the gap of runner layer (medial and lateral diameter difference) is bigger; This causes the wall unevenness of blanking parison even easily; Cause on body or the other products surface to occur tangible several roads easily and merge lines, influence product resistance to compression, aspect performance such as attractive in appearance thus, directly influenced the quality of product.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of blow molding machine and die head core rod thereof, help to improve the quality of products.
For solving above technical problem, technical scheme of the present invention is: a kind of die head core rod, and along the two-layer at least or two-layer above runner of being vertically arranged with of die head core rod main body.
More excellent ground is provided with the double-layer separate runner, and the lateralarea of double-layer separate runner equates.
More excellent ground, every layer of runner separates into multistage with a component stream shuttle respectively.
Component stream shuttle in the more excellent ground, every layer of runner evenly distributes.
Component stream shuttle in the more excellent ground, every layer of runner evenly distributes by even distribution hexagonal angle.
More excellent ground, component stream shuttle in the internal layer runner and the dislocation of the component stream shuttle in the outer runner are arranged.
More excellent ground is provided with threaded plug inner chamber, so that be threaded with external component.
More excellent ground is provided with the plug air flue that is communicated with the plug inner chamber.
More excellent ground, the blanking end of die head core rod is coniform.
On this basis, the present invention is corresponding to provide a kind of blow molding machine, comprises extruder and parison die, huffing device, clamping, parison thickness control system and transmission mechanism, and said parison die adopts above-mentioned die head core rod.
Compared with prior art; Blow molding machine die head core rod of the present invention adopts the multilayer design; Wherein the gap of each layer runner is little more a lot of than the gap in single-layer shunt road; Obviously be partial to certain direction because pressure is inhomogeneous so can avoid melting glue, pass through the reparation of spreader afterwards again, will be very even when under parison, arriving the mouth mould.This die head core rod helps to guarantee that the wall thickness of blanking parison is even, eliminates existing die head core rod and in production technology, causes product the problem of line to occur merging, has improved product resistance to compression, aspect performance such as attractive in appearance thus greatly, has guaranteed product quality preferably.
Description of drawings
Fig. 1 is the sketch map of blow molding machine die head core rod one preferred embodiment of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Among Fig. 1～Fig. 2, relevant Reference numeral is:
1, first spreader; 2, first runner; 3, second spreader; 4, second runner; 5, plug inner chamber; 6, plug air flue.
The specific embodiment
The basic design of the embodiment of the invention is, the multilayer runner is set on the die head core rod, and is even to guarantee the blanking system of parison wall thickness, avoids product line to occur merging.
In order to make those skilled in the art understand technical scheme of the present invention better, the ground that is without loss of generality is example with the double-layer separate runner below, in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.
Referring to Fig. 1～Fig. 2, represent a preferred embodiment of blow molding machine die head core rod of the present invention simultaneously.This die head core rod vertically is provided with the double-layer separate runner along the die head core rod main body; First runner 2 that promptly separates by first spreader 1 and second runner 4 that separates by second spreader 3; Wherein every layer spreader evenly distributes by hexagonal angle, and two-layer spreader then is dislocatedly distributed between then.
Said first runner 2, second runner 4 and first spreader 1, second spreader 3 are generally confirmed according to the volume and the weight of product; Preferably, the lateralarea of lateralarea second runner 4 of first runner 2 is consistent.When melt glue from first runner 2 and second runner 4 through out-of-date; Respectively can be by first spreader 1 and 3 blocking-up of second spreader; But the protection of first runner 2 and second runner, 4 these double-layer channels has been arranged, melted glue and can not played the two-layer complementary effect of glue of melting thus by blocking-up fully through out-of-date.
As shown in Figure 2, die head core rod blanking end is coniform, and the upper end then is provided with threaded plug inner chamber 5, can be threaded with external component; One plug air flue 6 arrives at plug inner chamber 5 after penetrating first spreader 1, second spreader 3, thus bubbling air.
Present embodiment adopts double-layer channel and every layer of spreader equally distributed technical scheme that misplaces, and can solve existing individual layer runner die head core rod and cause the wall unevenness of blanking parison even, and the problem of line appears obviously merging in body easily, this be because:
Existing die head core rod all adopts individual layer runner design, and its runner gap (inner and outer rings diameter difference) is big more a lot of than the gap (inner and outer rings diameter difference) of double-layer channel, can be partial to a direction because of pressure inhomogeneous when melting the glue process;
Adopt the double-layer channel design among the present invention, the double-deck opening diameter of this two-layer runner reduces, and melts glue and can obviously not be partial to a direction because pressure is inhomogeneous; Pass through the reparation of double-deck spreader again, down will be very even to parison to a mouthful mould; Thereby help to guarantee that the wall thickness of blanking parison is even, and eliminate existing die head core rod and in production technology, cause product the problem of line to occur merging, improved product resistance to compression, aspect performance such as attractive in appearance thus greatly, guaranteed product quality preferably.
Explanation is in passing: the principle according to above embodiment mentions, also can design flow passage structure more than three layers or three layers; But generally speaking, this can increase processing cost and difficulty of processing, also is difficult to play than the better effect in two-layer laminar flow road, thereby does not recommend to adopt at this.
Above technical, extrusion type blow molding machine of the present invention comprises extruder and parison die, huffing device, clamping, parison thickness control system and transmission mechanism, and parison die wherein adopts above-mentioned die head core rod.This blow molding machine blanking system of parison wall thickness is even, can not occur merging the line problem in the product, and its resistance to compression, performance attractive in appearance are good, and product quality is comparatively satisfied.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. a die head core rod is characterized in that, along the two-layer at least or two-layer above runner of being vertically arranged with of die head core rod main body.
2. die head core rod as claimed in claim 1 is characterized in that, is provided with the double-layer separate runner, and the lateralarea of double-layer separate runner equates.
3. die head core rod as claimed in claim 2 is characterized in that, every layer of runner separates into multistage with a component stream shuttle respectively.
4. die head core rod as claimed in claim 3 is characterized in that, the component stream shuttle in every layer of runner evenly distributes.
5. die head core rod as claimed in claim 4 is characterized in that, the component stream shuttle in every layer of runner evenly distributes by even distribution hexagonal angle.
6. die head core rod as claimed in claim 4 is characterized in that, component stream shuttle in the internal layer runner and the dislocation of the component stream shuttle in the outer runner are arranged.
7. die head core rod as claimed in claim 1 is characterized in that, is provided with threaded plug inner chamber, so that be threaded with external component.
8. die head core rod as claimed in claim 7 is characterized in that, is provided with the plug air flue that is communicated with the plug inner chamber.
9. like each described die head core rod of claim 1～8, it is characterized in that the blanking end of die head core rod is coniform.
10. a blow molding machine comprises extruder and parison die, huffing device, clamping, parison thickness control system and transmission mechanism, it is characterized in that said parison die adopts like each described die head core rod of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100019973A CN102514178A (en) | 2012-01-05 | 2012-01-05 | Hollow blow molding machine and die head core rod thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100019973A CN102514178A (en) | 2012-01-05 | 2012-01-05 | Hollow blow molding machine and die head core rod thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102514178A true CN102514178A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100019973A Pending CN102514178A (en) | 2012-01-05 | 2012-01-05 | Hollow blow molding machine and die head core rod thereof |
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| Country | Link |
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| CN (1) | CN102514178A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182680A (en) * | 2016-08-26 | 2016-12-07 | 徐州耐克盾机械制造有限公司 | A kind of mould head of blow-moulding machine |
| CN108000841A (en) * | 2017-10-26 | 2018-05-08 | 张家港市普信机械有限公司 | The shunting coventry type die head coventry of automatic blow molding machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763005Y (en) * | 2004-09-23 | 2006-03-08 | 何周富 | Mould for producing plastic three-wall corrugated pipe |
| CN101890795A (en) * | 2010-06-23 | 2010-11-24 | 苏州金纬机械制造有限公司 | Shunt device |
-
2012
- 2012-01-05 CN CN2012100019973A patent/CN102514178A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763005Y (en) * | 2004-09-23 | 2006-03-08 | 何周富 | Mould for producing plastic three-wall corrugated pipe |
| CN101890795A (en) * | 2010-06-23 | 2010-11-24 | 苏州金纬机械制造有限公司 | Shunt device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182680A (en) * | 2016-08-26 | 2016-12-07 | 徐州耐克盾机械制造有限公司 | A kind of mould head of blow-moulding machine |
| CN108000841A (en) * | 2017-10-26 | 2018-05-08 | 张家港市普信机械有限公司 | The shunting coventry type die head coventry of automatic blow molding machine |
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Application publication date: 20120627 |