CN109049640A - Blow needle mechanism for blow molding die list gas hole - Google Patents
Blow needle mechanism for blow molding die list gas hole Download PDFInfo
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- CN109049640A CN109049640A CN201810800440.3A CN201810800440A CN109049640A CN 109049640 A CN109049640 A CN 109049640A CN 201810800440 A CN201810800440 A CN 201810800440A CN 109049640 A CN109049640 A CN 109049640A
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- Prior art keywords
- needle
- blow
- hole
- guide
- outer tube
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 41
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 239000000498 cooling water Substances 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 27
- 238000007664 blowing Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- LTUFGCFAPCJOFQ-UHFFFAOYSA-N 2h-pyran-3-carboxamide Chemical compound NC(=O)C1=CC=COC1 LTUFGCFAPCJOFQ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/58—Blowing means
- B29C49/60—Blow-needles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
A kind of blow needle mechanism for blow molding die list gas hole, it includes connecting blow needle (1) with gas source, being fixed on push-and-pull cylinder on mould bases (2) and blow needle guiding mechanism, needle body includes outer tube (5) and inner tube (6), said inner tube (6) is located in outer tube (5), and the outer wall of outer tube (5) inner wall and inner tube (6) forms channel (7)；The upper end of inner tube (6) connect and is connected to syringe needle (3)；The upper end and syringe needle (3) of the outer tube (5) are tightly connected, and the outer peripheral surface of outer tube (5) upper end is equipped at least one venthole (8), the lower end of outer tube (5) is connect with needle stand (4)；First pipe fitting (9) is connected to inner tube (5), and the second pipe fitting (10) is connected to channel (7)；Syringe needle (3) is equipped with several gas holes (11)；Compared with prior art, the present invention has the characteristics that volume is relatively small, can shorten the production cycle, preparation cost is lower and maintenance is easier.
Description
Technical field
The present invention relates to blow molding die blow needle technical field, in particular to a kind of blow needle machines for blow molding die list gas hole
Structure.
Background technique
It is the hot melt made by means of gas pressure Bi He in a mold that blow molding, which refers mainly to hollow blow molding (also known as blow moulded),
The method that preform blowup forms hollow product, is the third most common plastic working method, while being also development faster one
Kind plastic molding method.The mold of blow molding only has former (cavity plate), and compared with injection molding, equipment manufacturing cost is lower, adaptability
Relatively strong, formability can good (such as low stress), the plastic product with complicated oscillating curves (shape).
Only one mouthful of product structure in blow molding die at present is required in addition be arranged on product in blow-molding process
Gas in product when molding can be exported, prevent high-temperature gas from the gentle height that presses through being concentrated to cause product defects by one gas outlet,
It is had the following problems wait be blocked again to gas outlet after the completion of being blow molded, but in this way after operation: first is that gas outlet, which blocks, extends life
The period is produced, also increase leakage probability, causes product cost to increase, stability in use reduces；First is that often the setting of return-air part exists
The side of blow needle mechanism is linked with blow needle mechanism, is pushed the cylinder of blow needle mechanism also just larger, is caused overall volume larger, and zero
Component is more, installs and safeguard cumbersome, and maintenance cost is also higher.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the above technological deficiency, provide that a kind of volume is relatively small, can shorten
Production cycle, the blow needle mechanism for blow molding die list gas hole that preparation cost is lower and maintenance is easier.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of blowing for blow molding die list gas hole
Needle mechanism, it includes connecting blow needle with gas source, being fixed on push-and-pull cylinder and blow needle guiding mechanism on mould bases, the push-and-pull cylinder
Piston rod is connect with blow needle, and the blow needle includes syringe needle, needle body and needle stand；The needle body includes outer tube and inner tube, said inner tube
In outer tube, and the axis of the axis of inner tube and outer tube is on the same line, and the outer wall of outer tube wall and inner tube forms channel；
The upper end of said inner tube connect and is connected to syringe needle, and the lower end of inner tube is connect with needle stand；The upper end of the outer tube and syringe needle seal
Connection, and the outer peripheral surface of outer tube upper end is equipped at least one venthole, the lower end of outer tube is connect with needle stand；It is set on the needle stand
There are the first pipe fitting and the second pipe fitting, the first pipe fitting is connected to inner tube, and the second pipe fitting is connected to channel；The syringe needle is
Pyramidal structure, and syringe needle is equipped with several gas holes.
The advantages of the present invention over the prior art are that: since the needle body of blow needle is divided into outer tube and inner tube, and inner tube
Channel between interior channel and inner and outer tubes is that independence is disconnected, then in use, can be two when initially blowing
Channel is blown simultaneously, can greatly improve the shaping efficiency of air blowing in this way, shortens molding cycle, and in blowing moulding after
Phase, the channel between inner and outer tubes are no longer blown, and acting on is return gas channel, and the intracavitary gas of type is exported, so as to anti-
Only heat concentrates the gentle height that presses through that product is caused the problem of defect occur；It does not need in addition to open up on product again simultaneously and sets outlet
Mouthful, also with regard to the program of the closure gas outlet without outputing port and later period early period, it can substantially shorten the production cycle of product, and
The push-and-pull cylinder of blow needle can be also reduced, reduces and occupies volume, whole components are relatively fewer, and it is easily installed and safeguards, the later period
Maintenance cost is lower；Furthermore after the setting of blow needle guiding mechanism, so that the stability of blow needle sliding is more preferable, using also more stable
Property.
As an improvement, the direction of the gas hole is opposite with the direction of venthole；Then in this way after setting, so that gas hole
Air-flow will not rapidly can be acted on effectively on product by venthole export, and air-flow forms circulating current in interiors of products, into
And under the premise of guaranteeing product rapid shaping, further increase the yield rate of product.
As an improvement, the syringe needle is pyramid-shaped structures；Then in this way after setting, so that syringe needle is easier to be pierced into blank, cut
The case where incision effect of syringe needle is preferable, is less prone to the overturning of entry marginal belt, guarantees the patch at entry edge and needle body
It is right, to guarantee blowing effect.
As an improvement, the blow needle guiding mechanism includes guide holder, guide block and guide sleeve, the guide holder be equipped with link block with
Mould bases connection；The upper surface of the guide holder is equipped with indent, and the guide block is slidably connected in indent；The link block is equipped with
Control the cylinder of guide block sliding；The guide block is equipped with centre bore, and the guide sleeve is connected in centre bore；The link block and guiding
Through-hole is equipped on seat, and the blow needle upper end sequentially passes through the through-hole on link block, slides after the through-hole on guide holder with guide sleeve
Connection；Then such blow needle guiding mechanism, components are relatively fewer, and structure is simple, and the guide block slided can be first in blow molding
It is pressed together at blow moulding, prevents syringe needle from shaking, can not only increase the puncture effect of blow needle syringe needle, can also be hindered when blow needle resets
The deformation of blank at product blow moulding is kept off, to further increase the blow molding yield rate of product, and then reduces production cost.
As an improvement, the indent of the guide holder is equipped at least two parallel guide rods, the guide rod upper end is set
There is an extension, and the outer diameter of extension is less than the outer diameter of guide rod, the guide block is equipped with stepped hole, the upper end of guide rod and prolongs
Long portion is slidably connected in stepped hole；The length in the hole of the upper end of the stepped hole and guide rod cooperation is greater than guide rod upper end
Spacing between end face and interior concave bottom surface；Then in this way after setting, the stability and directionality of guide block sliding are more preferable, and guide block
There are gaps between lower end surface and interior concave bottom surface, can not only eliminate the influence expanded with heat and contract with cold to guide block, can also prevent guide block with
There is the case where micro-vacuum absorption in interior concave bottom surface, to guarantee the stability in use and reliability of guide block.
As an improvement, the guide block upper surface is equipped with cooling water channel and cover board, the lower end of guide block is equipped with water inlet pipe and water outlet
Pipe, cover board and cooling water channel form closed cooling duct；The water inlet of cooling water channel is connected to water inlet pipe, and cooling water channel goes out
The mouth of a river is connected to outlet pipe；The guide block is equipped with several cooling holes of air cooling, and the cooling hole circumferentially divides along cooling water channel
Cloth, the axis of cooling hole and the axis of blow needle are parallel；The upper surface of the guide block is equipped with the seal groove of twice annular, two seals
Slot is arranged concentrically, and the size of two seals slot is different；The cooling water channel is on the position between two seals slot；It is located at
The internal diameter of intermediate seal groove together is greater than the internal diameter of guide block centre bore, and the corresponding center of circle of seal groove is located at the axis of guide block centre bore
On line；Then after cooling water channel setting, so that the temperature of guide block can control within the scope of different temperature, no according to the different of ingredient
But it may make blow moulding fast cooling shaping to prevent blow molding defect, can also quickly take away the heat of return-air on blow needle, prevent
The heat of return-air it is excessive exchange to air inlet, be not easy to concentrate with the internal heat of guarantee product phase after blow-moulding or excessively high, thus
Guarantee the yield rate of blow molding；And the setting of cooling hole also adds air-flow cooling, increases the heat dissipation effect of guide block.
As an improvement, channel and two curved channels of the cooling water channel by " C " font, two curved channels respectively with
The both ends in the channel of " C " font are connected to；Inlet and outlet are connected to two curved channels respectively, inlet and outlet position
In on the opposite position of the access portal of " C " font；Spacing between water inlet and water outlet is greater than 20mm and is less than guide block
The internal diameter of centre bore；The then cooling water channel of this spline structure, heat exchange area is relatively large, residence time of the cooling water on guide block
It is relatively long to guaranteeing cooling effect.
As an improvement, the syringe needle is pyramid shape, there are eight gas holes on syringe needle, four gas holes are one group, syringe needle
Two conical surfaces on be respectively provided with one group of gas hole；Venthole is four, and four ventholes are located at the extension of other two conical surface of syringe needle
To outer tube outer wall on, and the spacing between centrally located two through-holes of four through-holes is greater than 1mm and is less than or equal to 5mm；
Then pyramid shape is easy molding, and mold is easy, and mold opening cost is lower, is also convenient for setting gas hole, and gas hole and venthole this
After sample layout, so that air-flow is more likely to form a circulation, so that the heat of product is easy to be entrained by the flow of air, product is reduced
Blow molding defect, and then improve finished product yield rate.
As an improvement, four conical surfaces of the syringe needle pyramid shape are the cambered surface of indent, four gas holes in every group are in
Inverted " t " font structure；The airflow direction that then cambered surface and the arrangement of " T " font may make gas hole to blow out is more preferable, it is easier to be formed
Air-flow, the air-flow for having just enter into product are also just not easy quickly to enter in venthole, but the original gas of interiors of products is arranged
It is extruded into venthole, to guarantee that product inner wall is not in the case where heat is concentrated, to reduce blow molding defect.
As an improvement, the gas hole tilts upwards, and the angle between the axis of gas hole and the axis of blow needle is 85 °
~89 °；Then in this way after setting, the air-flow just blown out from gas hole is upward along certain angle, and being also easier in this way will be in product
The original gas in portion is toward reverse extrusion, and venthole is located on the reverse position of gas hole, is easier to form the gas of circulation
Stream, therefore effectively the original gas of interiors of products can be discharged.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the present invention for the blow needle mechanism of blow molding die list gas hole.
Fig. 2 is the cross-sectional view along line A-A in Fig. 1.
Fig. 3 is the enlarged drawing of C portion in Fig. 2.
Fig. 4 is top view of the present invention for the blow needle mechanism of blow molding die list gas hole.
Fig. 5 is the cross-sectional view along line B-B in Fig. 4.
Fig. 6 is perspective view of the present invention for the blow needle mechanism of blow molding die list gas hole.
Fig. 7 is that blow needle mechanism of the present invention for blow molding die list gas hole removes the structural schematic diagram after cover board.
Fig. 8 is structural schematic diagram of the present invention for the blow needle mechanism guide block of blow molding die list gas hole.
Fig. 9 is perspective view of the present invention for the blow needle mechanism blow needle of blow molding die list gas hole.
Figure 10 is structural schematic diagram of the present invention for the blow needle mechanism blow needle of blow molding die list gas hole.
It is as shown in the figure: 1, blow needle, 2, push-and-pull cylinder, 3, syringe needle, 4, needle stand, 5, outer tube, 6, inner tube, 7, channel, 8, ventilation
Hole, the 9, first pipe fitting, the 10, second pipe fitting, 11, gas hole, 12, guide holder, 13, guide block, 14, guide sleeve, 15, link block,
16, indent, 17, cylinder, 18, guide rod, 19, stepped hole, 20, cooling water channel, 21, cover board, 22, cooling hole, 23, seal groove,
24, water inlet, 25, water outlet, 26, the channel of " C " font, 27, curved channel, 28, extension.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
Embodiment one
In conjunction with Fig. 1~10, a kind of blow needle mechanism for blow molding die list gas hole, it includes connecting blow needle 1 with gas source, consolidating
Be scheduled on push-and-pull cylinder 2 and blow needle guiding mechanism on mould bases (further includes other components, but due to being not directed to the invention certainly
Inventive point, therefore details are not described herein), the piston rod of the push-and-pull cylinder 2 is connect with blow needle 1, the blow needle 1 include syringe needle 3,
Needle body and needle stand 4；The needle body includes outer tube 5 and inner tube 6, and needle stand 4 connects by the way that connecting plate and the piston rod of push-and-pull cylinder 2 are fixed
Connect, said inner tube 6 is located in outer tube 5, and the axis of the axis of inner tube 6 and outer tube 5 is on the same line, 5 inner wall of outer tube with it is interior
The outer wall of pipe 6 forms channel 7；The upper end of said inner tube 6 connect and is connected to syringe needle 3, and inner tube 6 is an integral structure with syringe needle 3,
The lower end of inner tube 6 is connect with needle stand 4, and the lower end of inner tube 6 is located at the outside of outer tube 5, and 6 lower end of inner tube is equipped with plug, under plug
End face is equipped with threaded hole, and bolt screws after passing through connecting plate with threaded hole, and the lower end of inner tube 6 sets air inlet and the first pipe fitting 9
Connection；3 lower end of syringe needle is equipped with step, and the upper end of the outer tube 5 is socketed on the step of syringe needle 3, is additionally provided with convex block on syringe needle 3,
And the upper end of outer tube 5 is equipped with the groove cooperated with convex block, and after being arranged in this way, when so that outer tube 5 and syringe needle 3 welding, outer tube 5 and needle
First 3 circumferential relative position will not move, and guarantee the uniformity of weld seam after the stability and welding of welding, and outer tube 5 upper end
Outer peripheral surface is equipped at least one venthole 8, and the lower end of outer tube 5 is connect with needle stand 4；The needle stand 4 is equipped with the first pipe fitting 9
With the second pipe fitting 10, the first pipe fitting 9 is connected to inner tube 6, and the second pipe fitting 10 is connected to channel 7；The syringe needle 3 is tetragonous
Taper has eight gas holes 11 on syringe needle 3, and four gas holes 11 are one group, is respectively provided with one group of air blowing on two conical surfaces of syringe needle 3
Hole 11；Venthole 8 is four, and four ventholes 8 are located on 5 outer wall of outer tube that syringe needle 3 other two conical surface extends to, and four
Spacing between two centrally located ventholes 8 of venthole 8 is greater than 1mm and is less than or equal to 5mm, and if syringe needle 3 be equipped with
Dry gas hole 11, this example are eight gas holes 11.
The direction of the gas hole 11 and the direction of venthole 8 are opposite.
The blow needle guiding mechanism includes guide holder 12, guide block 13 and guide sleeve 14, and the guide holder 12 is equipped with link block 15
It is connect with mould bases；The upper surface of the guide holder 12 is equipped with indent 16, and the guide block 13 is slidably connected in indent 16；The company
It connecing block 15 and is equipped with the cylinder 17 that control guide block 13 slides, the free end of 17 piston rod of cylinder is T-shape structure, and guide block 13
It is equipped with the T-shape slot cooperated with T-shape structure；The guide block 13 is equipped with centre bore, and the guide sleeve 14 is connected in centre bore；
It is equipped with through-hole on the link block 15 and guide holder 12,1 upper end of blow needle sequentially passes through through-hole on link block 15, guiding
It is slidably connected after through-hole on seat 12 with guide sleeve 14；12 lower end of guide holder is equipped with open slot, and the width of open slot is greater than cylinder 17
The outer diameter of piston rod, and the length of open slot is greater than the protruded length of the piston rod in retracted mode of cylinder 17, in this way in the later period
When maintenance needs to dismantle cylinder 17, do not need to dismantle guide holder 12, in 17 retracted mode of cylinder, by the fixation spiral shell of cylinder 17
Bolt is removed, and is then moved radially cylinder 17, can be removed piston rod from open slot, to cylinder 17 be dismantled, installation dimension
Shield is easier, is provided on certain link block 15 and is open correspondingly with open slot.
The indent 16 of the guide holder 12 is equipped at least two parallel guide rods 18, and 18 upper end of guide rod is equipped with
Extension 28, and the outer diameter of extension 28 is less than the outer diameter of guide rod 18, the guide block 13 is equipped with stepped hole 19, guide rod 18
Upper end and extension 28 be slidably connected in stepped hole 19；The hole that the upper end of the stepped hole 19 and guide rod 18 cooperates
Length is greater than the spacing between 18 upper end end face of guide rod and 16 bottom surface of indent.
13 upper surface of guide block is equipped with cooling water channel 20 and cover board 21, and the lower end of guide block 13 is equipped with water inlet pipe and water outlet
Pipe, cover board 21 and cooling water channel 20 form closed cooling duct；The water inlet 24 of cooling water channel 20 is connected to water inlet pipe, cooling
The water outlet 25 in water route 20 is connected to outlet pipe；The guide block 13 is equipped with several cooling holes 22 of air cooling, the cooling hole
22 is circumferentially distributed along cooling water channel 20, and the axis of cooling hole 22 is parallel with the axis of blow needle 1；The upper surface of the guide block 13 is equipped with
The seal groove 23 of twice annular, two seals slot 23 are arranged concentrically, and the size of two seals slot 23 is different；The cooling water channel
On 20 position between two seals slot 23；Internal diameter positioned at intermediate seal groove 23 together is greater than 13 centre bore of guide block
Internal diameter, the corresponding center of circle of seal groove 23 are located on the axis of 13 centre bore of guide block.
Channel 26 and two curved channels 27 of the cooling water channel 20 by " C " font, two curved channels 27 respectively with
The both ends in the channel 26 of " C " font are connected to；Water inlet 24 and water outlet 25 are connected to two curved channels 27 respectively, water inlet 24
On the opposite position that the channel 26 for being located at " C " font with water outlet 25 is open；Spacing between water inlet 24 and water outlet 25
Greater than 20mm and less than the internal diameter of 13 centre bore of guide block (this example 15mm can also be 5mm, 10mm or 20mm etc.).
Four conical surfaces of 3 pyramid shape of syringe needle are the cambered surface of indent, and four gas holes 11 in one group are in inverted " t " word
Type structure.
The inclination upwards of the gas hole 11, and the angle between the axis of gas hole 11 and the axis of blow needle 1 be 85 °~
89 ° (this example is 88 °, can also be 85 °, 87 ° or 89 ° etc.).
Embodiment two
A kind of blow needle mechanism for blow molding die list gas hole, it includes connecting blow needle 1 with gas source, being fixed on mould bases and above push away
Draw cylinder 2 and blow needle guiding mechanism (certainly further include other components, but the inventive point due to being not directed to the invention, therefore
Details are not described herein), the piston rod of the push-and-pull cylinder 2 is connect with blow needle 1, and the blow needle 1 includes syringe needle 3, needle body and needle stand
4；The needle body includes outer tube 5 and inner tube 6, and needle stand 4 is fixedly connected by connecting plate with the piston rod of push-and-pull cylinder 2, described interior
Pipe 6 is located in outer tube 5, and the axis of the axis of inner tube 6 and outer tube 5 is on the same line, the outer wall of outer tube 5 inner wall and inner tube 6
Form channel 7；The upper end of said inner tube 6 connect and is connected to syringe needle 3, and inner tube 6 is an integral structure with syringe needle 3, under inner tube 6
End is connect with needle stand 4；3 lower end of syringe needle is equipped with step, and the upper end of the outer tube 5 is socketed on the step of syringe needle 3, on syringe needle 3 also
Equipped with convex block, and the upper end of outer tube 5 is equipped with the groove cooperated with convex block, after being arranged in this way, when so that outer tube 5 and syringe needle 3 welding,
Outer tube 5 and the circumferential relative position of syringe needle 3 will not move, and guarantee the uniformity of weld seam after the stability and welding of welding, and outer
The outer peripheral surface of 5 upper end of pipe is equipped at least one venthole 8, and the lower end of outer tube 5 is connect with needle stand 4；The needle stand 4 is equipped with the
One pipe fitting 9 and the second pipe fitting 10, the first pipe fitting 9 are connected to inner tube 6, and the second pipe fitting 10 is connected to channel 7；The needle
First 3 be pentagonal pyramid shape, there is 12 gas holes 11 on syringe needle 3, and four gas holes 11 are one group, three adjacent conical surfaces of syringe needle 3
On be respectively provided with one group of gas hole 11；Venthole 8 is four, and four ventholes 8 are located at syringe needle 3 other two conical surface, and (referring to does not have
Two conical surfaces of gas hole 11 are set) on 5 outer wall of outer tube that extends to, so that the direction of gas hole 11 and the direction of venthole 8
On the contrary, and the spacing between centrally located two ventholes 8 of four ventholes 8 is 3mm, venthole 8 is elongate holes；
The conical surface of syringe needle 3 is the cambered surface of indent, and every group of four gas holes 11 are distributed in inverted " t " font structure.
The blow needle guiding mechanism includes guide holder 12, guide block 13 and guide sleeve 14, and the guide holder 12 is equipped with link block 15
It is connect with mould bases；The upper surface of the guide holder 12 is equipped with indent 16, and the guide block 13 is slidably connected in indent 16；The company
It connects block 15 and is equipped with the cylinder 17 that control guide block 13 slides；The guide block 13 is equipped with centre bore, and the guide sleeve 14 is connected to center
In hole；Through-hole is equipped on the link block 15 and guide holder 12,1 upper end of blow needle sequentially passes through logical on link block 15
It is slidably connected after through-hole on hole, guide holder 12 with guide sleeve 14.
The indent 16 of the guide holder 12 is equipped at least two parallel guide rods 18, and 18 upper end of guide rod is equipped with
Extension 28, and the outer diameter of extension 28 is less than the outer diameter of guide rod 18, the guide block 13 is equipped with stepped hole 19, guide rod 18
Upper end and extension 28 be slidably connected in stepped hole 19；The hole that the upper end of the stepped hole 19 and guide rod 18 cooperates
Length is greater than the spacing between 18 upper end end face of guide rod and 16 bottom surface of indent.
13 upper surface of guide block is equipped with cooling water channel 20 and cover board 21, and the lower end of guide block 13 is equipped with water inlet pipe and water outlet
Pipe, cover board 21 and cooling water channel 20 form closed cooling duct；The water inlet 24 of cooling water channel 20 is connected to water inlet pipe, cooling
The water outlet 25 in water route 20 is connected to outlet pipe；The guide block 13 is equipped with several cooling holes 22 of air cooling, the cooling hole
22 is circumferentially distributed along cooling water channel 20, and the axis of cooling hole 22 is parallel with the axis of blow needle 1；The upper surface of the guide block 13 is equipped with
The seal groove 23 of twice annular, two seals slot 23 are arranged concentrically, and the size of two seals slot 23 is different；The cooling water channel
On 20 position between two seals slot 23；Internal diameter positioned at intermediate seal groove 23 together is greater than 13 centre bore of guide block
Internal diameter, the corresponding center of circle of seal groove 23 are located on the axis of 13 centre bore of guide block.
Channel 26 and two curved channels 27 of the cooling water channel 20 by " C " font, two curved channels 27 respectively with
The both ends in the channel 26 of " C " font are connected to；Water inlet 24 and water outlet 25 are connected to two curved channels 27 respectively, water inlet 24
On the opposite position that the channel 26 for being located at " C " font with water outlet 25 is open；Spacing between water inlet 24 and water outlet 25
For 10mm.
The inclination upwards of gas hole 11, and the angle between the axis of gas hole 11 and the axis of blow needle 1 is 86 °.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawings
Only one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (10)
1. a kind of blow needle mechanism for blow molding die list gas hole, it includes connecting blow needle (1) with gas source, being fixed on mould bases and above push away
Cylinder (2) and blow needle guiding mechanism, the piston rod of the push-and-pull cylinder (2) are drawn to connect with blow needle (1), it is characterised in that: described
Blow needle (1) includes syringe needle (3), needle body and needle stand (4)；The needle body includes outer tube (5) and inner tube (6), and said inner tube (6) is located at
In outer tube (5), and the axis of inner tube (6) and the axis of outer tube (5) are on the same line, and outer tube (5) inner wall is outer with inner tube (6)
Wall forms channel (7)；The upper end of said inner tube (6) connect and is connected to syringe needle (3), and the lower end and needle stand (4) of inner tube (6) are even
It connects；The upper end and syringe needle (3) of the outer tube (5) are tightly connected, and the outer peripheral surface of outer tube (5) upper end is equipped at least one ventilation
The lower end in hole (8), outer tube (5) is connect with needle stand (4)；The needle stand (4) is equipped with the first pipe fitting (9) and the second pipe fitting
(10), the first pipe fitting (9) is connected to inner tube (5), and the second pipe fitting (10) is connected to channel (7)；The syringe needle (3) is taper
Structure, and syringe needle (3) is equipped with several gas holes (11).
2. the blow needle mechanism according to claim 1 for blow molding die list gas hole, it is characterised in that: the gas hole
(11) direction is opposite with the direction of venthole (8).
3. the blow needle mechanism according to claim 1 for blow molding die list gas hole, it is characterised in that: the syringe needle (3)
For pyramid-shaped structures.
4. the blow needle mechanism according to claim 1 for blow molding die list gas hole, it is characterised in that: the blow needle guiding
Mechanism includes guide holder (12), guide block (13) and guide sleeve (14), and the guide holder (12) is equipped with link block (15) and connect with mould bases；
The upper surface of the guide holder (12) is equipped with indent (16), and the guide block (13) is slidably connected in indent (16)；The connection
Block (15) is equipped with the cylinder (17) of control guide block (13) sliding；The guide block (13) is equipped with centre bore, and the guide sleeve (14) is even
It connects in centre bore；Through-hole is equipped on the link block (15) and guide holder (12), blow needle (1) upper end sequentially passes through company
It connects the through-hole on block (15), be slidably connected after the through-hole on guide holder (12) with guide sleeve (14).
5. the blow needle mechanism according to claim 4 for blow molding die list gas hole, it is characterised in that: the guide holder
(12) indent (16) is equipped at least two parallel guide rods (18), and guide rod (18) upper end is equipped with extension, and
The outer diameter of extension be less than guide rod (18) outer diameter, the guide block (13) be equipped with stepped hole (19), guide rod (18) it is upper
End and extension are slidably connected in stepped hole (19)；The hole that the upper end of the stepped hole (19) and guide rod (18) cooperates
Length is greater than the spacing between guide rod (18) upper end end face and indent (16) bottom surface.
6. the blow needle mechanism according to claim 5 for blow molding die list gas hole, it is characterised in that: the guide block (13)
Upper surface is equipped with cooling water channel (20) and cover board (21), and the lower end of guide block (13) is equipped with water inlet pipe and outlet pipe, cover board (21) and
Cooling water channel (20) forms closed cooling duct；The water inlet of cooling water channel (20) is connected to water inlet pipe, cooling water channel (20)
Water outlet be connected to outlet pipe；The guide block (13) is equipped with several cooling holes (22) of air cooling, the cooling hole (22)
Circumferentially distributed along cooling water channel (20), the axis of cooling hole (22) is parallel with the axis of blow needle (1)；The upper end of the guide block (13)
Face is equipped with the seal groove (23) of twice annular, and two seals slot (23) is arranged concentrically, and the size of two seals slot (23) is different；
The cooling water channel (20) is located on the position between two seals slot (23)；Positioned at the internal diameter of intermediate seal groove (23) together
Greater than the internal diameter of guide block (13) centre bore, the corresponding center of circle of seal groove (23) is located on the axis of guide block (13) centre bore.
7. the blow needle mechanism according to claim 6 for blow molding die list gas hole, it is characterised in that: the cooling water channel
(20) by the channel of " C " font and two curved channels, two curved channels are connected to the both ends in the channel of " C " font respectively；
Inlet and outlet are connected to two curved channels respectively, and inlet and outlet are located at the phase of the access portal of " C " font
On anti-position；Spacing between water inlet and water outlet is greater than 20mm and is less than the internal diameter of guide block (13) centre bore.
8. the blow needle mechanism according to claim 3 for blow molding die list gas hole, it is characterised in that: the syringe needle (3)
For pyramid shape, there are eight gas holes (11) on syringe needle (3), four gas holes (11) are one group, on two conical surfaces of syringe needle (3)
It is respectively provided with one group of gas hole (11)；Venthole (8) is four, and four ventholes (8) are located at the extension of syringe needle (3) other two conical surface
On outer tube (5) outer wall arrived, and the spacing between centrally located two ventholes (8) of four ventholes (8) is greater than 1mm
Less than or equal to 5mm.
9. the blow needle mechanism according to claim 8 for blow molding die list gas hole, it is characterised in that: the syringe needle (3)
Four conical surfaces of pyramid shape are the cambered surface of indent, and four gas holes (11) in one group are in inverted " t " font structure.
10. the blow needle mechanism for blow molding die list gas hole according to claim 8 or claim 9, it is characterised in that: the air blowing
Hole (11) tilts upwards, and the angle between the axis of gas hole (11) and the axis of blow needle (1) is 85 °~89 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800440.3A CN109049640B (en) | 2018-07-20 | 2018-07-20 | Blowing needle mechanism for single blowing hole of blow mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800440.3A CN109049640B (en) | 2018-07-20 | 2018-07-20 | Blowing needle mechanism for single blowing hole of blow mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109049640A true CN109049640A (en) | 2018-12-21 |
| CN109049640B CN109049640B (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810800440.3A Active CN109049640B (en) | 2018-07-20 | 2018-07-20 | Blowing needle mechanism for single blowing hole of blow mould |
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| Country | Link |
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| CN (1) | CN109049640B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134962A (en) * | 2020-01-16 | 2021-07-20 | 大众汽车股份公司 | Method and tool for blow-moulding plastic boxes with at least one connecting element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537056B1 (en) * | 1998-09-30 | 2003-03-25 | The Japan Steel Works, Ltd. | Needle blow nozzle and blow molding apparatus |
| JP2004291614A (en) * | 2003-03-12 | 2004-10-21 | Yachiyo Industry Co Ltd | Blow-needle |
| CH699104A1 (en) * | 2008-07-11 | 2010-01-15 | Alpla Werke | Inflation needle for extrusion blow molding device, has central channel, which opens out in front side opening at free end of inflation needle and is enclosed from annular channel |
| CN206913664U (en) * | 2017-06-23 | 2018-01-23 | 深圳市麦迪康包装技术有限公司 | A kind of blow needle component |
-
2018
- 2018-07-20 CN CN201810800440.3A patent/CN109049640B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537056B1 (en) * | 1998-09-30 | 2003-03-25 | The Japan Steel Works, Ltd. | Needle blow nozzle and blow molding apparatus |
| JP2004291614A (en) * | 2003-03-12 | 2004-10-21 | Yachiyo Industry Co Ltd | Blow-needle |
| CH699104A1 (en) * | 2008-07-11 | 2010-01-15 | Alpla Werke | Inflation needle for extrusion blow molding device, has central channel, which opens out in front side opening at free end of inflation needle and is enclosed from annular channel |
| CN206913664U (en) * | 2017-06-23 | 2018-01-23 | 深圳市麦迪康包装技术有限公司 | A kind of blow needle component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134962A (en) * | 2020-01-16 | 2021-07-20 | 大众汽车股份公司 | Method and tool for blow-moulding plastic boxes with at least one connecting element |
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| Publication number | Publication date |
|---|---|
| CN109049640B (en) | 2020-08-11 |
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Application publication date: 20181221 Assignee: Ningbo Fangzheng Auto Parts Co.,Ltd. Assignor: NINGBO FANGZHENG TOOL Co.,Ltd. Contract record no.: X2024330000883 Denomination of invention: Needle blowing mechanism for single blow holes in blow molds Granted publication date: 20200811 License type: Common License Record date: 20241022 |
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