CN102765183A - Blow molding forming device and method - Google Patents
Blow molding forming device and method Download PDFInfo
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- CN102765183A CN102765183A CN2012102650490A CN201210265049A CN102765183A CN 102765183 A CN102765183 A CN 102765183A CN 2012102650490 A CN2012102650490 A CN 2012102650490A CN 201210265049 A CN201210265049 A CN 201210265049A CN 102765183 A CN102765183 A CN 102765183A
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Abstract
The invention discloses a blow molding forming device and a blow molding forming method. The blow molding forming device comprises an extrusion mechanism, a die head assembly, a first die closing mechanism, a second die closing mechanism, a first auxiliary die, a second auxiliary die, a forming and blowing mechanism, and a controller, wherein the die head assembly is used for manufacturing a single plate embryo; the first die closing mechanism and the second die closing mechanism are arranged on the same side of the single plate embryo when the single plate embryo is led out; the first auxiliary die and the second auxiliary die are arranged on the other side of the single plate embryo; the first auxiliary die is matched with the first die closing mechanism; and the second auxiliary die is matched with the second die closing mechanism. According to the blow molding forming device and the blow molding forming method, an embedded part is arranged on the single plate embryo at first and then two half edges of the single plate embryo are folded up, so that products such as a car oil tank embedded with the embedded part and the like can be manufactured. The blow molding forming device is simpler in structure, convenient in processing, high in efficiency and good in sealing property of the products.
Description
Technical field
The invention belongs to the blow molding technology field, relate to a kind of blow molding apparatus, relate in particular to a kind of fuel tank blow molding apparatus; Simultaneously, the invention still further relates to a kind of blow molding method.
Background technology
Existing blow moulding machine mainly comprises frame, extrusion mechanism, die head, clamping, bottom blow structure, and its working method is: after sealant was gushed out, the wind-force that utilizes machine to produce by boasting blew the die cavity that is attached to definite shape with plastomer, thereby processes product.Plastics are melted in screw extruder and quantitatively extrude, and then through closing the film moulding, through vane blowing cooling, have hauling machine to draw by certain speed then again, and up-coiler is wound into volume.
The inside of the shaped article that existing blow moulding machine blowing makes is normally empty; If inside needs mold insert; For example automotive oil tank needs hollow automotive oil tank housing of first blow molding, then on the automotive oil tank housing, digs some holes; In each hole, inlay the element of inlaying that needs again, process is comparatively complicated; Simultaneously, owing to need borehole, perforations adding, the sealing of automotive oil tank is also relatively poor usually.
In addition, also have a kind of blow moiding method abroad, need from die head, draw two plate embryos at least, then in the plate embryo, mold insert is set, then blow molding.Though this programme has solved product hermeticity and process complicated problems, because this programme needs two die heads and corresponding die head controlling organization, perhaps draw two plate embryos from same die head, device structure is complicated, and the control difficulty is bigger.
Summary of the invention
Technical problem to be solved by this invention is: a kind of blow molding apparatus is provided, can makes the products such as automotive oil tank that inside is embedded with mold insert, device structure is comparatively simple, and is easy to process, efficient is high, and product hermeticity is good.
In addition, the present invention also provides a kind of blow molding method, can make the products such as automotive oil tank that inside is embedded with mold insert, and device structure is comparatively simple, and is easy to process, efficient is high, and product hermeticity is good.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of blow molding apparatus, said device comprises: extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body, controller;
Said controller connects extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body respectively, in order to the action of control extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body;
Said die head assembly is in order to make the single piece plate embryo, and said first clamping, second clamping are arranged at the same side of said single piece plate embryo when the single piece plate embryo is drawn, and the first auxiliary mould, the second auxiliary mould are arranged at the opposite side of said single piece plate embryo; The said first auxiliary mould cooperates with first clamping, and the second auxiliary mould cooperates with second clamping;
Said controller control moulding inflatable body blows out wind-force, makes the first of single piece plate embryo assist mould one-step forming just through first clamping and first, forms the first plate embryo; Second portion forms the second plate embryo through second clamping and the first one-step forming of the second auxiliary mould; At the first plate embryo or/and in the second plate embryo mold insert is set;
Said controller also assists mould to separate with first clamping, second clamping respectively in order to control the first auxiliary mould, second; Control a rotation or two all rotations in first clamping, second clamping; The plate embryo of winning, the second plate embryo are fitted tightly, form confined space between the first plate embryo, the second plate embryo;
Said controller control moulding inflatable body blows out wind-force in said confined space, form the blow molding product.
As a kind of preferred version of the present invention, said first clamping, second clamping are equipped with the groove of identical opening, and the first plate embryo that make to form, just docked on each limit of slot opening when the second plate embryo fitted tightly.
As a kind of preferred version of the present invention, said device also is provided with the mold insert placement mechanism, in order under the control of controller, mold insert is placed into the first plate embryo or/and in the second plate embryo.
As a kind of preferred version of the present invention, said device comprises an extrusion mechanism or some extrusion mechanisms, in order to generate the single piece plate embryo of individual layer or multilayer;
Said die head assembly has the wall thickness controlling organization, forms the single piece plate embryo of the adjustable single or multiple lift of thickness behind the molten plastic entering die head assembly through one or more extrusion mechanisms.
As a kind of preferred version of the present invention; The structure of said first clamping, second clamping is identical; Cooperate the first auxiliary mould, the second auxiliary mould to carry out the first time during matched moulds, each parts of first clamping and the corresponding component of second clamping are in together on the plane;
Said first clamping, second clamping are respectively equipped with rotating mechanism, and through after the rotating mechanism rotation, both matched moulds zones combine and carry out the second time during matched moulds, and the center of the center of first clamping and second clamping point-blank.
A kind of blow molding apparatus, said device comprises: extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body, controller;
Said controller connects extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body respectively, in order to the action of control extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body;
Said die head assembly is in order to make the single piece plate embryo; Said first clamping, second clamping are arranged at the same side of single piece plate embryo extraction location; The first auxiliary mould, the second auxiliary mould are arranged at the opposite side of said single piece plate embryo position, and be relative with first clamping, second clamping respectively; The said first auxiliary mould cooperates with first clamping, the second auxiliary mould cooperates with second clamping, carries out the matched moulds first time;
Said first clamping or/and the rotation of second clamping makes win clamping and the cooperation of second clamping, carries out the matched moulds second time in order to control first clamping under the control of controller or/and second clamping is provided with rotating mechanism.
A kind of blow molding method, said method comprises the steps:
Step S1, make the single piece plate embryo through the die head assembly;
The same side of step S2, said single piece plate embryo is provided with first clamping, second clamping; The first auxiliary mould, the second auxiliary mould are arranged at the opposite side of said single piece plate embryo; The said first auxiliary mould cooperates with first clamping, and the second auxiliary mould cooperates with second clamping;
Step S3, controller control moulding inflatable body blow out wind-force, make the first of single piece plate embryo assist mould one-step forming just through first clamping and first, form the first plate embryo; Second portion forms the second plate embryo through second clamping and the first one-step forming of the second auxiliary mould;
Step S4, at the first plate embryo or/and in the second plate embryo mold insert is set;
Step S5, the controller control first auxiliary mould, the second auxiliary mould separate with first clamping, second clamping respectively; One that controls in first clamping, second clamping is rotated or all rotations; The plate embryo of winning, the second plate embryo are fitted tightly, form confined space between the first plate embryo, the second plate embryo;
Step S6, said controller control moulding inflatable body blow out wind-force in said confined space, obtain the blow molding product.
As a kind of preferred version of the present invention, among the said step S1, the die head assembly has the wall thickness controlling organization, forms the single piece plate embryo of single or multiple lift behind the molten plastic entering die head assembly through one or more extrusion mechanisms.
As a kind of preferred version of the present invention, the structure of said first clamping, second clamping is identical;
Among the step S3, said first clamping, second clamping cooperate the first auxiliary mould, the second auxiliary mould to carry out the first time during matched moulds, and each parts of first clamping and the corresponding component of second clamping are in together on the plane;
Said first clamping, second clamping are respectively equipped with rotating mechanism; Among the step S5, through after the rotating mechanism rotation, both matched moulds zones combine and carry out the second time during matched moulds, and the center of the center of first clamping and second clamping point-blank.
As a kind of preferred version of the present invention, among the said step S4, controller control mold insert placement mechanism is placed into the first plate embryo or/and in the second plate embryo with mold insert.
As a kind of preferred version of the present invention, said method further comprises: first clamping controlled by step S7, controller or/and the rotation of second clamping recovers initial position, prepares moulding next time.
Beneficial effect of the present invention is: blow molding apparatus and method that the present invention proposes; Through at first mold insert being arranged on the single piece plate embryo; Then two one side of something of single piece plate embryo are turned up, can be made the products such as automotive oil tank that inside is embedded with mold insert, the present device structure is comparatively simple; Easy to process, efficient is high, product hermeticity is good.
Description of drawings
Fig. 1 is the structural representation of blow molding apparatus of the present invention.
Fig. 2 is apparatus of the present invention clamping structural representation of matched moulds for the first time.
Fig. 3 is provided with the structural representation of mold insert for apparatus of the present invention clamping.
Fig. 4 is the structural representation of blow-moulding mould-closing mechanism of the present invention die sinking for the first time.
Fig. 5 is the structural representation of the blow-moulding mould-closing mechanism matched moulds second time of the present invention.
Fig. 6 is the structural representation of blow-moulding mould-closing mechanism of the present invention die sinking for the second time.
The structural representation that Fig. 7 resets for blow-moulding mould-closing mechanism of the present invention.
Fig. 8 is the flow chart of blow molding method of the present invention.
Fig. 9 is the structural representation of blow molding apparatus among the embodiment two.
Figure 10 is the structural representation of the device clamping matched moulds first time among the embodiment two.
Figure 11 is provided with the structural representation of mold insert for device clamping among the embodiment two.
Figure 12 is the structural representation of device clamping die sinking for the first time among the embodiment two.
Figure 13 is the vertical view of clamping among Fig. 9.
Figure 14 is the structural representation of device clamping rotation among the embodiment two.
Figure 15 is the structural representation of the device clamping matched moulds second time among the embodiment two.
Figure 16 is the structural representation of device clamping die sinking for the second time among the embodiment two.
Figure 17 is the structural representation of device clamping spinning reduction among the embodiment two.
Figure 18 is the structural representation after the device clamping resets among the embodiment two.
Figure 19 is the structural representation of blow molding apparatus among the embodiment three.
Figure 20 is the variation sketch map of clamping in the blowing process among the embodiment three.
Figure 21 is another structural representation of blow molding apparatus among the embodiment three.
Figure 22 is the structural representation of blow molding apparatus among the embodiment four.
Figure 23 is another structural representation of blow molding apparatus among the embodiment four.
Figure 24 is the structural representation of a plurality of extrusion mechanisms of blow molding apparatus among the embodiment five.
Accompanying drawing marks as follows:
1, extrusion mechanism 2, die head assembly
31, first clamping 32, second clamping
311, first template 312, first mould
313, the first plate embryo 321, second template
322, second mould 323, the second plate embryo
41, first auxiliary mould 42, the second auxiliary mould
43, mold insert 9, plate embryo
The specific embodiment
Specify the preferred embodiments of the present invention below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 1 to Fig. 7; The present invention has disclosed a kind of blow molding apparatus, and said device comprises: extrusion mechanism 1, die head assembly 2, first clamping 31, second clamping, 32, first auxiliary mould 41, the second auxiliary mould 42, moulding inflatable body, mold insert placement mechanism, controller.Said controller connects extrusion mechanism 1, die head assembly 2, first clamping 31, second clamping, 32, first auxiliary mould 41, the second auxiliary mould 42, moulding inflatable body, mold insert placement mechanism respectively, in order to the action of control extrusion mechanism 1, die head assembly 2, first clamping 31, second clamping, 32, first auxiliary mould 41, the second auxiliary mould 42, moulding inflatable body, mold insert placement mechanism.
In the present embodiment, blow molding apparatus of the present invention only is provided with an extrusion mechanism 1, and said die head assembly 2 is in order to make single piece plate embryo 9; As shown in Figure 1, the 9 vertical dischargings of single piece plate embryo.Mould comprises that up and down first clamping 31 that is provided with, second clamping, 32, the first clampings 31, second clamping 32 are arranged at the same side of said single piece plate embryo 9 when single piece plate embryo 9 is drawn.As shown in Figure 1; In the present embodiment; The structure identical (its structure also can be incomplete same certainly) of said first clamping 31, second clamping 32, each parts of first clamping 31 and the corresponding component of second clamping 32 are in together on the plane.First clamping 31 comprises that first template 311, first mould, 312, the second clampings 32 comprise second template 321, second mould 322.First auxiliary mould 41, the second auxiliary mould 42 is arranged at the opposite side of said single piece plate embryo 9, and is relative with first clamping 31, second clamping 32 respectively; The said first auxiliary mould 41 cooperates with first clamping 31, and the second auxiliary mould 42 cooperates with second clamping 32.
See also Fig. 2, said controller control moulding inflatable body blows out wind-force, makes first's one-step forming at the beginning of under the cooperation of first clamping 31 and the first auxiliary mould 41 of single piece plate embryo 9 to form the first plate embryo 313; Second portion one-step forming at the beginning of under the cooperation of second clamping 32 and the second auxiliary mould 42 forms the second plate embryo 323.
See also Fig. 3, said controller control mold insert placement mechanism at the first plate embryo 313 or/and in the second plate embryo 323 mold insert 43 is set.
See also Fig. 4, said controller control first auxiliary mould 41, the second auxiliary mould 42 separates with first clamping 31, second clamping 32 respectively.Said first clamping, second clamping are respectively equipped with rotating mechanism; A rotation or two whiles that controller is controlled in first clamping 31, second clamping 32 rotate (in the present embodiment in opposite directions; Controlling both is the axle center rotation with the intersection of first clamping 31, second clamping 32 all; Direction of rotation is different, thereby reaches the effect that first clamping 31, second clamping 32 combine), the center of the center of first clamping and second clamping is point-blank; The plate embryo of winning, the second plate embryo are fitted tightly, form confined space between the first plate embryo, the second plate embryo.At this moment, mold insert is in said confined space.Preferably; Said first clamping 31, second clamping 32 are equipped with the groove (like the right side of Fig. 4 further groove opening for this groove) of identical opening, make the first plate embryo 313 that forms, just docked on each limit of slot opening when the second plate embryo 323 fitted tightly.
See also Fig. 5, said controller control moulding inflatable body blows out wind-force in said confined space, form the blow molding product.
See also Fig. 6, said controller is controlled first clamping 31, second clamping 32 separates, and takes out the shaped article that makes.
See also Fig. 7, said controller is controlled first clamping 31 and 32 rotations of second clamping, recovers initial position, prepares moulding next time.
More than introduced the structure of blow molding apparatus of the present invention, the present invention also discloses a kind of blow molding method when disclosing above-mentioned blow molding apparatus.See also Fig. 8, said method comprises the steps:
[step S1] makes the single piece plate embryo through the die head assembly.
[step S2] sees also Fig. 1, and the same side of said single piece plate embryo is provided with first clamping, second clamping; The first auxiliary mould, the second auxiliary mould are arranged at the opposite side of said single piece plate embryo; The said first auxiliary mould cooperates with first clamping, and the second auxiliary mould cooperates with second clamping.
[step S3] sees also Fig. 2, and controller control moulding inflatable body blows out wind-force, makes the first of single piece plate embryo assist mould one-step forming just through first clamping and first, forms the first plate embryo; Second portion forms the second plate embryo through second clamping and the first one-step forming of the second auxiliary mould.
[step S4] sees also Fig. 3, and controller control mold insert placement mechanism is placed into the first plate embryo or/and in the second plate embryo with mold insert.
[step S5] sees also Fig. 4, and said controller control first auxiliary mould 41, the second auxiliary mould 42 separates with first clamping 31, second clamping 32 respectively.Said first clamping, second clamping are respectively equipped with rotating mechanism; Controller is controlled rotation or all rotations (in the present embodiment in first clamping 31, second clamping 32; Controlling both all rotates); The center of the center of first clamping and second clamping fits tightly the plate embryo of winning, the second plate embryo point-blank, forms confined space between the first plate embryo, the second plate embryo.At this moment, mold insert is in said confined space.Preferably, said first clamping 31, second clamping 32 are equipped with the groove (like the right side of Fig. 4 further groove opening for this groove) of identical opening, make the first plate embryo that forms, just docked on each limit of slot opening when the second plate embryo fitted tightly.
[step S6] sees also Fig. 5, and said controller control moulding inflatable body blows out wind-force in said confined space, obtain the blow molding product.
[step S7] sees also Fig. 6, and said controller is controlled first clamping 31, second clamping 32 separates, and takes out the shaped article that makes.
[step S8] sees also Fig. 7, and first clamping controlled by controller or/and the rotation of second clamping recovers initial position, prepares moulding next time.
Embodiment two
See also Fig. 9 to Figure 18, the difference of present embodiment and embodiment one is that in the present embodiment, first clamping 31 is positioned at the left side of second clamping 32, and first clamping 31, second clamping about 32 are provided with, and can realize the present invention equally.
Embodiment three
See also Figure 19, Figure 20, Figure 21, the difference of present embodiment and embodiment one is that in the present embodiment, plate embryo level is drawn, and said blow molding apparatus also comprises derivation mechanism, can draw single piece plate embryo level and draw.The template of first clamping 31, second clamping 32 is on same horizontal plane, and in addition, in the present embodiment, first clamping 31, second clamping 32 are arranged on the top of single piece plate embryo.
Like Figure 19, shown in Figure 20, first clamping 31, second clamping 32 can horizontally sets, promptly first clamping 31, second clamping 32 be provided with direction and plate embryo to draw direction parallel.
Shown in figure 21, first clamping 31, second clamping 32 also can vertically be provided with, promptly first clamping 31, second clamping 32 be provided with direction and plate embryo to draw direction vertical.
Embodiment four
See also Figure 22, Figure 23, the difference of present embodiment and embodiment three is, in the present embodiment, first clamping 31, second clamping 32 are arranged on the below of single piece plate embryo.
Shown in figure 22, first clamping 31, second clamping 32 can horizontally sets, promptly first clamping 31, second clamping 32 be provided with direction and plate embryo to draw direction parallel.
Shown in figure 23, first clamping 31, second clamping 32 also can vertically be provided with, promptly first clamping 31, second clamping 32 be provided with direction and plate embryo to draw direction vertical.
Embodiment five
See also Figure 24, the difference of present embodiment and embodiment one is that in the present embodiment, said device comprises some extrusion mechanisms 1, in order to cooperate the single piece plate embryo that generates multilayer with die head assembly 2.
Said die head assembly 2 has the wall thickness controlling organization, gets into the single piece plate embryo of die head assembly 2 back formation multilayers through the molten plastic of a plurality of extrusion mechanisms 1.
Embodiment six
The difference of present embodiment and above embodiment is that in the present embodiment, the plate embryo can also be tilted and draw, and the plate embryo is drawn direction and horizontal direction angulation greater than 0 °, less than 90 °.That is, the plate embryo can vertically be drawn, and can be drawn by level, can also be tilted and draw.
In sum; Blow molding apparatus and method that the present invention proposes through at first mold insert being arranged on the single piece plate embryo, are then turned up two one side of something of single piece plate embryo; Can make the products such as automotive oil tank that inside is embedded with mold insert; The present device structure is comparatively simple, and is easy to process, efficient is high, and product hermeticity is good.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the scope of the invention and spirit, can carry out other distortion and change here to the embodiment that is disclosed.
Claims (10)
1. a blow molding apparatus is characterized in that, said device comprises: extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body, controller;
Said controller connects extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body respectively, in order to the action of control extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body;
Said die head assembly is in order to make the single piece plate embryo, and said first clamping, second clamping are arranged at the same side of said single piece plate embryo when the single piece plate embryo is drawn, and the first auxiliary mould, the second auxiliary mould are arranged at the opposite side of said single piece plate embryo; The said first auxiliary mould cooperates with first clamping, and the second auxiliary mould cooperates with second clamping;
Said controller control moulding inflatable body blows out wind-force, makes the first of single piece plate embryo assist mould one-step forming just through first clamping and first, forms the first plate embryo; Second portion forms the second plate embryo through second clamping and the first one-step forming of the second auxiliary mould; At the first plate embryo or/and in the second plate embryo mold insert is set;
Said controller also assists mould to separate with first clamping, second clamping respectively in order to control the first auxiliary mould, second; Control a rotation or two all rotations in first clamping, second clamping; The plate embryo of winning, the second plate embryo are fitted tightly, form confined space between the first plate embryo, the second plate embryo;
Said controller control moulding inflatable body blows out wind-force in said confined space, form the blow molding product.
2. blow molding apparatus according to claim 1 is characterized in that:
Said first clamping, second clamping are equipped with the groove of identical opening, and the first plate embryo that make to form, just docked on each limit of slot opening when the second plate embryo fitted tightly.
3. blow molding apparatus according to claim 1 is characterized in that:
Said device also is provided with the mold insert placement mechanism, in order under the control of controller, mold insert is placed into the first plate embryo or/and in the second plate embryo.
4. blow molding apparatus according to claim 1 is characterized in that:
Said device comprises an extrusion mechanism or some extrusion mechanisms, in order to generate the single piece plate embryo of individual layer or multilayer;
Said die head assembly has the wall thickness controlling organization, forms the single piece plate embryo of the adjustable single or multiple lift of thickness behind the molten plastic entering die head assembly through one or more extrusion mechanisms.
5. blow molding apparatus according to claim 1 is characterized in that:
The structure of said first clamping, second clamping is identical, cooperates the first auxiliary mould, the second auxiliary mould to carry out the first time during matched moulds, and each parts of first clamping and the corresponding component of second clamping are in together on the plane;
Said first clamping, second clamping are respectively equipped with rotating mechanism, and through after the rotating mechanism rotation, both matched moulds zones combine and carry out the second time during matched moulds, and the center of the center of first clamping and second clamping point-blank.
6. a blow molding apparatus is characterized in that, said device comprises: extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body, controller;
Said controller connects extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body respectively, in order to the action of control extrusion mechanism, die head assembly, first clamping, second clamping, the first auxiliary mould, the second auxiliary mould, moulding inflatable body;
Said die head assembly is in order to make the single piece plate embryo; Said first clamping, second clamping are arranged at the same side of single piece plate embryo extraction location; The first auxiliary mould, the second auxiliary mould are arranged at the opposite side of said single piece plate embryo position, and be relative with first clamping, second clamping respectively; The said first auxiliary mould cooperates with first clamping, the second auxiliary mould cooperates with second clamping, carries out the matched moulds first time;
Said first clamping or/and the rotation of second clamping makes win clamping and the cooperation of second clamping, carries out the matched moulds second time in order to control first clamping under the control of controller or/and second clamping is provided with rotating mechanism.
7. a blow molding method is characterized in that, said method comprises the steps:
Step S1, make the single piece plate embryo through the die head assembly;
The same side of step S2, said single piece plate embryo is provided with first clamping, second clamping; The first auxiliary mould, the second auxiliary mould are arranged at the opposite side of said single piece plate embryo; The said first auxiliary mould cooperates with first clamping, and the second auxiliary mould cooperates with second clamping;
Step S3, controller control moulding inflatable body blow out wind-force, make the first of single piece plate embryo assist mould one-step forming just through first clamping and first, form the first plate embryo; Second portion forms the second plate embryo through second clamping and the first one-step forming of the second auxiliary mould;
Step S4, at the first plate embryo or/and in the second plate embryo mold insert is set;
Step S5, the controller control first auxiliary mould, the second auxiliary mould separate with first clamping, second clamping respectively; Control a rotation or two all rotations in first clamping, second clamping; The plate embryo of winning, the second plate embryo are fitted tightly, form confined space between the first plate embryo, the second plate embryo;
Step S6, said controller control moulding inflatable body blow out wind-force in said confined space, obtain the blow molding product.
8. blow molding method according to claim 7 is characterized in that:
Among the said step S1, the die head assembly has the wall thickness controlling organization, forms the single piece plate embryo of the adjustable single or multiple lift of thickness behind the molten plastic entering die head assembly through one or more extrusion mechanisms.
9. blow molding method according to claim 7 is characterized in that:
The structure of said first clamping, second clamping is identical;
Among the step S3, said first clamping, second clamping cooperate the first auxiliary mould, the second auxiliary mould to carry out the first time during matched moulds, and each parts of first clamping and the corresponding component of second clamping are in together on the plane;
Said first clamping, second clamping are respectively equipped with rotating mechanism; Among the step S5, through after the rotating mechanism rotation, both matched moulds zones combine and carry out the second time during matched moulds, and the center of the center of first clamping and second clamping point-blank.
10. blow molding method according to claim 7 is characterized in that:
Said method further comprises: first clamping controlled by step S7, controller or/and the rotation of second clamping recovers initial position, prepares moulding next time.
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Application publication date: 20121107 |