CN1039211A

CN1039211A - Stretch blow molding method and machine thereof

Info

Publication number: CN1039211A
Application number: CN89104704.2A
Authority: CN
Inventors: 荷尔曼·沃斯
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-05-25
Filing date: 1989-05-25
Publication date: 1990-01-31
Also published as: AR246063A1; DE3817633C2; DE3817633A1; CA1331263C

Abstract

The thermoplastic parison infeed line up circular fixing or can be Orbiting on the ingredient table of stretch-blow pattern central authorities.Movably or stationary device the parison on the ingredient table be sent to be ready to accept in the pattern chamber of parison, movably withdrawing device is used for mentioning from corresponding pattern finishing stretch blow-molded goods, and they are sent on the discharge pedestal.Transmission and withdrawing device can be assembled into parts, and its working method is: take out the process of one or several goods and take place simultaneously with the process of one or several parison being put into one or several second pattern from one or several first pattern.

Description

Stretch blow molding method and machine thereof

The present invention relates to make the method for hollow plastic articles and the improvement of machine, particularly the method for the thermoplastic goods of manufacturing blow molding and the improvement of machine.More particularly, the method that the present invention relates to and the improvement of machine can be effectively applied to make the stretch blow molded article, and the instant heating plastic parison is carried out goods biaxial stretch-formed and that obtained with the compressed air inflation with machinery in the blowing mould chamber.

A stretch blow forming machine generally has several patterns, forms the chamber that holds the thermoplasticity parison in the pattern.Pattern and nozzle and mechanical stretching device cooperating, nozzle is ejected into quantitative gas-pressurized in the parison, and the mechanical stretching device perhaps in the middle of expansion process or afterwards, elongates parison then before making parison swell with gas-pressurized.In present many known machines, pattern is installed in one can be on the turntable of vertical axis calibration, and like this, pattern is in turn by loading platform, in thermoplasticity parison embedded type die cavity.Afterwards, parison is subjected to the biaxial stretch-formed effect of machine, and expands under the gas-pressurized effect, presents and the surperficial consistent shape that forms the pattern chamber.Usually, greatly about corresponding pattern around turntable shaft turn over 3/4ths change before, parison has just been finished the process that becomes hollow plastic articles (as bottle).Then, prepared plastic products being taken out from corresponding pattern chamber, like this, before each pattern arrives charging position, is exactly empty.

The common method of summarizing above and the advantage of machine are that goods can be produced by regular time intervals.If 4 patterns are housed on the turntable, then turntable is whenever goed around, and this machine is just produced 4 goods.

Speed that turntable rotates around vertical axis and its calibration number depend on Several Parameters.One of parameter is that the parison in the pattern chamber is become the needed time of stretch blow molded article.In addition, the turntable revolution depends on that the hollw article of parison being put into the required time of pattern chamber and will just having made takes out the required time from corresponding pattern one cycle turnover.Like this, rotate continuously as turntable, the speed that then rotatablely moves depends on three variablees at least.On the other hand, if turntable rotates by interrupted mode, then in the machine run clocklike the length of dead time depend on and put into parison and take out the required time of hollw article, the velocity of rotation of turntable between two adjacent stop positions that intermittent type rotates then depends on peak acceleration and the deceleration that time that the biaxial stretch-formed and pneumatic blow molding operation (soon parison changes hollw article into) of finishing machine is required and pattern are allowed.Turntable can not bear rapid acceleration and deceleration, because certainly will produce harmful effect to the position of parison in corresponding pattern chamber like this.Continuously or off and on the garden circular velocity of the turntable of rotation is directly proportional with its diameter. ^*All of these factors taken together has limited traditional stretch blow forming machine.It can not be produced in the unit interval a lot, or more goods.

Pattern be placed on continuously or the turntable of intermittently rotation on another shortcoming of stretch blow forming machine be that the supply of hot water, cooling fluid, Compressed Gas and electric power, and parison put into the pattern chamber and take out hollw article from the pattern chamber all exists many problems.For example, need between parts fixing and motion, the device of carrying electric current be set, equally, be used to provide the device of the gas-pressurized (as compressed air) that makes the parison swell in the pattern chamber, and the device of hot-water supply and suitable cooling agent, also all to be arranged between the parts fixing and motion.And and, on the sealing problem of the pressurized gas passage in inflow is enclosed in parison in the pattern chamber, also produced serious difficulty.And must pass the signal to the fixed part that is positioned at outside the turntable with the monitoring device of electrically operated and signal generation apparatus and get on the turntable.All these make that traditional blow moulding machine is bulky, involve great expense and complex structure.

Another shortcoming of traditional blow moulding machine is that it can not produce two or more dissimilar hollow stretch blow molded articles simultaneously.Like this, each pattern chamber is all identical, institute

^*Original text is for being inversely proportional to, and according to general knowledge, should be and is directly proportional.The mechanical stretching device that has is also all identical.On the other hand, to the growth of requirement of the blow molding hollow thermoplastic material product of various different sizes and shape, considerably beyond the output that can give the phase.Therefore, an urgent demand improves processing method and machine, so that produce a large amount of said products by them in the unit interval.One of reason that the hollow thermoplastic material product is popular to people day by day is their manufacturing and throw aside can pollution of ecological environment.

An object of the present invention is to provide and a kind ofly can in the unit interval, produce a large amount of blow molded products new and the method for having improved.

Another object of the present invention provides a kind of method that can produce dissimilar blow molded products simultaneously.

Another object of the present invention provides a kind of method, wherein is used for the gas-pressurized of inflation parison more to be not easy to leak than adopting above-mentioned known method to produce blow molded product.

Further object of the present invention provides a kind of thermoplastic stretch blow shaping hollw article new and the method for having improved.

A further object of the invention provides a kind of method, and it makes puts into the pattern chamber to the thermoplasticity parison, and the process that blow molded product takes out from the pattern chamber is obtained simplifying.

Another object of the present invention provides a kind of said method new and machine that has improved realized.

Another object of the present invention provides a kind of machine, and it has puts into new, the device that improved of blow molding die cavity with parison and have new, the device that improved that parison after being shaped is taken out from old die cavity.

Another purpose of the present invention provides a kind of machine, it has new, the control device that improved of its motion of control and other parts and has operation makes the thermoplasticity parison change new, the device that improved of the instrument of blow molding or stretch blow molded article into.

Another object of the present invention provides a kind of machine, and it has device new, that improved, and the motion of each moving component takes place this device simultaneously, with output that increases machine and the quality of improving blow molded product.

Another object of the present invention provides a kind of machine, and it has device new, the simplification parison feed that improved, and the simplification gas-pressurized that And has is new, improved enters the device of parison.

One of characteristics of the present invention provide the method for a kind of operation thermoplasticity parison and blow molded product (comprising the stretch blow molded article).This method comprises the steps: parison is delivered to ingredient table; A plurality of blow molding dies (at least two) are placed round the ingredient table location, single parison is sent to the single pattern from ingredient table, the parison in the corresponding pattern is made blow molded product; And goods are taken out from corresponding pattern.

The step that goods are taken out from pattern can be right after before parison is sent into the transfer step of this pattern carries out, just, it is step in the empty pattern chamber at that time that parison is sent into, and immediately following newly formed goods take out step from this pattern after, the interval of centre is very of short duration.

A parison at least two patterns is made the step of blow molded product, can carry out simultaneously with the step of parison being sent into another pattern in these two patterns, vice versa.

Transfer step is included in carries parison before parison enters pattern along an arc track, specifically, be that the circular orbit (as the garden circular orbit) along a sealing is carried.Take out step comprise with the goods in the corresponding pattern towards or transmit away from the center of circular orbit.

Positioning step comprises pattern is placed on garden round ingredient table on week, and transfer step is included in and clamps parison on the ingredient table and the parison that these are clamped is sent into pattern.

Take out step and comprise the outside of parison being mentioned this pattern.

According to most preferred embodiment provided by the present invention, method of the present invention comprises that also one is being supplied with, transmits, blowing and taking out in the step, clamp pattern and (for example make its clamping step that does not relatively move with ingredient table, pattern can be fixedly mounted on the hold-down support), and the step that parison is sent in one of pattern can take place simultaneously with parison is made goods in another pattern process.

Transmit and take out step preferably by at least one between ingredient table and pattern continuously the conveyer of running realize And and this at least one conveyer have ingredient table receive parison and with parison put into pattern first instrument (as, first clamp), with second instrument that from pattern, receives goods (as, second clamp).

Transfer step also comprises the parison on the ingredient table is sent to pattern to give fixed order (that is, according to giving fixed scheme), also comprises by giving fixed order goods are taken out from pattern and take out step.

Can use the portable clamp of using for single parison in the transfer step, and comprise in the taking-up step that the goods that goods are mentioned and will be mentioned deliver to that goods store and/or discharger (as delivering on the belt conveyor of plastic bottle, phial or similar containers) from corresponding pattern.

It also is feasible selecting supplying step like this,, takes off a plurality of parisons simultaneously from ingredient table that is.The taking-up step also can comprise takes out goods simultaneously from least two patterns.

Transfer step can be sent to the parison on the ingredient table in the pattern with pneumatic means (perhaps use vacuum, perhaps use gas-pressurized).Similarly, take out the also available pneumatic means of step (perhaps use vacuum, perhaps use gas-pressurized) goods in the pattern are sent into the warehouse, or deliver to outfeed belt conveyor.Alternatively, transfer step also can be carried parison by gravity, also can lean on gravity that goods are taken out from corresponding pattern and take out step.Also gravity mode and pneumatic mode of movement can be combined, be used for parison being sent to pattern and/or being used for taking out goods from corresponding pattern.

Another characteristics of the present invention provide a kind of operation thermoplasticity parison and blow molded product, the particularly machine of stretch blow molded article.The machine that has improved comprises the device that is called ingredient table; Parison is sent into the device of ingredient table; A plurality of blowing patterns round the ingredient table placement; Parison on the ingredient table is sent in the pattern so that it becomes the device of blow molded product; And the device that the goods in the pattern are taken out.This machine also comprises the bearing of a supporting pattern, and this bearing is fixed, and conveyer can be mounted to respect to ingredient table and pedestal mounted pattern movably.Alternatively, this machine also can have device that pattern is moved with respect to the ingredient table portable bearing of turntable (as make).Mobile device can be pattern and is provided with one and gives fixed track, and the conveyer of this machine has a device in the pattern that parison is sent in the first that is in track.The withdrawing device of this machine also has one with the device that takes out in the pattern of goods from the second portion that is in track.

Conveyer (as, make one or several chute) can fix with respect to bearing.Perhaps, the conveyer on the machine is movably with respect to bearing.Movably conveyer comprises and clamps clamp that parison uses and the device of mobile clamp between ingredient table and pattern.Conveyer can be arranged to like this, i.e. two or more parisons of the clamping simultaneously of clamp on it.It is mobile clamp under a constant speed at least that the device of mobile clamp can be designed to.Withdrawing device can be arranged on the conveyer, also can not be arranged on the conveyer.

According to most preferred embodiment provided by the present invention, conveyer comprises the clamp of clamping parison and the device of mobile clamp between ingredient table (clamp is clamped parison) and pattern (parison of clamp relieving herein) herein.This machine is controlled the control device of above-mentioned mobile device in addition.The conveyer of this machine has a lever that has many arms, and makes lever around the device that gives the rotation of dead axle line between two arms.Clamp is arranged on the one arm, and withdrawing device is arranged on other one arm.Control device be make this root axis along one round ingredient table, be the device of the track rotation of garden shape basically.Every one arm comprises can be around first that axis rotates or first section, and can be with respect to first or first section second portion that rotates and/or move or second section.Clamp and withdrawing device are contained on the second portion of corresponding arm or second section.Control device be designed to make withdrawing device with in have the pattern of goods to aim at the parison of ， And on making clamp simultaneously and being positioned at ingredient table to aim at.

Pattern on the machine that has improved is the open and close type pattern.Each pattern includes the polylith module, and these modules have formed the chamber that holds parison and blow molded product.Have at least a module between open position and closing position, to move in each pattern with respect to an other at least module.At open position, parison can be put into the chamber, or goods are taken out in the chamber.In closing position, parison or goods are fixed in the chamber.Machine of the present invention is provided with between open position and closing position to moving the device of at least one module in each pattern, handles the manipulation device of above-mentioned mobile device action in addition.Manipulation device comprises cam and follower.In order to simplify manipulation device, it preferably further comprises tumbler or other proper device that cam gear is moved with respect to pattern.This cam gear comprises a ring-type cam around ingredient table at least.Tumbler is an axis rotation on the ingredient table preferably.The annular wall that this tumbler has a horizontal end wall and one to be installed on the end wall or is made of one with end wall.The cam of manipulation device and follower have one group to be to be positioned at the cam on the end wall and the sub-assembly of follower, a module that is used for mobile pattern between the open and close position of pattern, and on the annular wall of tumbler, can be provided with or carry the sub-assembly of one or more cams and follower, be used to control the operation that parison is blow molded into the device of hollw article.

Cam can be made the fluted body cam.

The blowing device comprises and is used for allowing gas-pressurized flow into the valve that goes in the parison in the pattern chamber, and the device of control valve.Manipulation device is driven by follower, and follower is then followed a camming movement on the tumbler annular wall.Manipulation device comprises the clamper of valve, with the valve device reciprocating with respect to the parison in the pattern chamber that makes clamper and their clampings, above-mentioned reciprocating motion is by the rotation of tumbler and the displacement that follower produced of following cam is caused.The handlebar parison is sealed in the device in the pattern chamber on each clamper, when opening with convenient valve, prevents that gas from leaking from parison.

The blowing device also comprises the device that the parison in the pattern chamber is carried out mechanical stretching, and this stretching device is driven by follower, and this follower is and then to be positioned at a camming movement on the tumbler annular wall.The blowing device of this machine also has an acceleration gearbox that assigns between stretching device and the corresponding follower, and this speed changer comprises an input element, an output element and an intermediary element.Input element in motion, get in touch with corresponding follower (as, connect with the link rod of translatory movement); Output element is got in touch with corresponding stretching device in motion; And intermediary element passes motion to output element by input element driving ， And, and its transfer mode is: the move distance of output element is greater than the move distance of input element.At least one element is belt and pulley gear in the speed changer.The belt of intermediary element and pulley gear can be designed to like this, that is, it has a major diameter belt pulley that is driven by input element, small diameter pulleys that drives output element and the annular flexible component on two belt pulleys.Speed changer also comprises a rubbing action hookup between input element and corresponding follower, and/or the rubbing action hookup between output element and stretching device.

The cam of the manipulation device of control valve is single salient angle cam, promotes follower by it and opens corresponding valve.The two sides of salient angle become 100～135 ° angle with the remainder of cam, and preferably this angle is near 135 °.

Open and close to trigger the cam on the tumbler annular wall of being positioned at of valve, its setting height(from bottom) is preferably lower than the height of the cam of the mechanical stretching device motion of control.The cam of control stretching device motion preferably includes first section that highly is lower than second section.When stretching device is on a certain position (as, off position), promote corresponding follower by first section, and be positioned at the another location when (as, operating position) when the stretching device of pattern, then promote this follower by second section.The length of first section can equal or roughly near the length of second section.Between first section and second section, the transition region of gradual change preferably is set, this transition region with respect to the angle of inclination of above-mentioned two sections between 40～60 °.

Conveyer comprises a chute that is used for parison at least.This chute has the parison that sufficient to guarantee enters in the chute and slide to the angle of inclination of going in the chamber of the pattern of opening under the gravity effect.Also can be provided with pneumatic mode and/or mechanical mode with the parison on the ingredient table along one or several chute send into open and also the pattern chamber of emptying in the conveying device of going.For example, conveyer can be each pattern and is equipped with a chute.The upper end of each chute is near ingredient table, and the bottom is near corresponding pattern.This conveyer can close chute bottom and openable gate in addition, perhaps other suitable device, can only open at pattern so that guarantee parison, when And and its chamber are prepared to accept parison, just can leave corresponding chute near this chute.

Pattern can form a complete ring around ingredient table.Perhaps, machine also can have only two, three or more a spot of pattern.Ingredient table can be positioned at or approach the center of the pattern of garden shape arrangement.

After the embodiment that below the reference accompanying drawing has been read in detail, has described in detail, just can understand the machine after improving of the present invention better, its structure and working method, and its its feature and advantage.

Fig. 1 is the floor map of an embodiment of machine of the present invention, and this machine turns round in the mode of stationary mould annular arrangement;

Fig. 2 is the elevational schematic view of second kind of machine, and in this machine, pattern is installed on the rotary bearing of making turntable;

Fig. 3 is the floor map of the third machine, and this machine has stationary mould, also has the composite set that transmits parison and take out goods;

Fig. 4 is the partial vertical sectional view of the amplification of looking along the direction of arrow of the IV-IV line from Fig. 3;

Fig. 5 is the expanded view of two cams in Fig. 3 and the machine shown in Figure 4;

Fig. 6 is the floor map of the third machine, and the device that wherein is used for parison is passed to the pattern chamber comprises one group of fixedly chute;

Fig. 7 is the similar planar schematic diagram of the 4th kind of machine, and conveyer wherein has only an independent chute, but this chute geometric pattern base ingredient table rotates.

At first referring to Fig. 1, there is shown a stretch blow forming machine, it comprises the tabular bearing 1 of one group of pattern 6 of a supporting, and this group pattern 6 is a garden annular 5 around parison ingredient table 2.At the garden ring of forming by pattern 65 radially, an endless conveyor 27 is arranged, and parison 22 is delivered to ingredient table 2 by this endless conveyor 27, and the stretch blow molded article of making 9 is taken out from pattern 6 by withdrawing device 10, be sent to discharge pedestal 3, just deliver to the The initial segment of endless conveyor 8.This blow-moulding machine also has a conveyer 15, is used for parison 22 is sent to by giving the pattern 6 that definite sequence chooses from ingredient table 2.This machine also has the blowing device of parison, this device is included in the die cavity of corresponding pattern 6 device with mechanical stretching parison 22, with the device that quantitative gas-pressurized (as compressed air) is imported parison, conform to the surface configuration that surrounds die cavity in the shape of guaranteeing each part goods 9 and the corresponding pattern 6.

Ingredient table 2 occupies or encircles 5 center 4 near the garden of being lined up by pattern 6, the boundary member 7 of discharge pedestal 3 close bearing 1 in the outside.The conveyer belt 8 at discharge pedestal 3 places can be sent to the warehouse with goods 9.Withdrawing device 10 is used for goods 9 are proposed from corresponding pattern chamber, then along an arc track or other passage with the products transfer of being mentioned to the conveyer belt 8 that is positioned at discharge pedestal 3 places.Withdrawing device 10 as shown in the figure can rotate an angle around a vertical pivot member 11, and this pivot member 11 is adjacent with the boundary member 7 of bearing 1, and near discharge pedestal 3.Have clamp or gripper 12 on the free end of withdrawing device 10, it can be clamped formed article 9, is sent to conveyer belt 8 and gets on.Withdrawing device 10 as shown in the figure comprises that a combined type is long-armed, this arm by several sections with hinged section (or part) be assembled (figure 1 illustrates section 13 and 14), thereby this arm can move forward its clamp 12 die cavity that ， And aims at selected pattern 6.In case goods 9 propose from the die cavity of corresponding pattern 6, withdrawing device 10 promptly rotates around the axis of pivot member 11, clamp 12 is moved to the top of the receiving terminal of Continuous Drive that is located at the close bearing 1 in discharge pedestal 3 places or the conveyer belt 8 that intermittently drives.Can equip two or more withdrawing devices 10 on the machine, each withdrawing device 10 is all put in position and is gone up, and And takes out goods 9 in the die cavity of one group of pattern being made up of two or more patterns 6 by it.Alternatively, perhaps, in the aforesaid operations process, add the pattern 6 of lining up garden ring 5 is rotated around ingredient table 2, so that successively or selectively pattern 6 is transplanted on the scope of activities of the clamp 12 on the combination arm 13+14 that is positioned at withdrawing device 10.

Conveyer 15 has clamp 24 on the free end 23 of its elongated combination arm 16, elongated combination arm 16 can wind by vertical pivot member 18 determined vertical axis and rotate, and pivot member 18 is installed in and is arranged in the bearing 17 that 5 the insides are encircled in the garden of being lined up by pattern 6.Arm 16 is assembled (having represented two section 20,21 in Fig. 1) by several sections (parts), these several sections arms are hinged with one or more joints 19.So the conveyer 15 of design can make its clamp 24 clamp parison 22 at ingredient table 2 places, and And sends into the parison of being clamped in the die cavity of selected pattern 6.The device that is used as the chela of open and close clamp 24 can design by conventional method, thereby not expression especially in the accompanying drawings.For being used for the device of open and close, also adopt same design as the chela of the clamp 12 of the part of withdrawing device 10.Self-evident, blow-moulding machine makes the appropriate device of the arm 16 of conveyer around the axis rotation of pivot member 10 in addition, and be the distance between the chela that increases or shorten pivot member 18 and clamp 24, so that conveyer 15 can be clamped parison 22 on ingredient table 2, And is sent to the parison of being clamped in the device that goes in the casement chamber of selected pattern 6.

Preferably design pattern 6 in such a way, that is, become hollw article 9, for example become a bottle, medicine bottle or similarly contain the container of flow media, carry out biaxial stretch-formed to it earlier before with compressed air expansion parison 22 or elongate in order to make parison.Fig. 1 illustrates, and each pattern 6 comprises two modules 25,26, and one of them can move with respect to another piece at least in these two modules, so that present open position, in this position, clamp 24 can be put into corresponding die cavity with parison 22, and perhaps clamp 12 can take out formed article 9; Perhaps present closing position, in this position, parison 22 is enclosed in the pattern chamber rightly, prepares by stretching device its gas-pressurized that applies effect and accept necessary amount.

According to a most preferred embodiment, pattern 6 is fixed, and that is to say, between these patterns, between they and bearing 1, does not relatively move, and does not also move with bearing 1.So just be necessary to design one or several conveyer 15 according to a kind of like this mode, promptly, it can be sent to the die cavity ， And that is arranged in any one pattern 6 on the garden ring 5 and withdrawing device or each withdrawing device 10 from ingredient table 2 with parison 22 and all in type goods 9 can be mentioned from any chosen mould 6.The action length of the withdrawing device 10 as shown in the figure and the arm of conveyer 15 can change within the specific limits, this scope is mobile between discharge pedestal 3 and any selected pattern 6 for guaranteeing clamp 12, and guarantees that it is necessary that clamp 24 moves between ingredient table 2 and any selected pattern 6.Certainly, the above is only applicable to machine shown in Figure 1 and only uses a conveyer 15 and withdrawing device 10 these situations.This as can see from Figure 2 mode of operation, that is, the clamp 24 on the arm 16 of conveyer 15 is clamped parison 22 from feed conveyor 27, and it is put into the die cavity of a pattern 6 of selecting; 10 of withdrawing devices propose goods 9 from the pattern chamber, send it on the conveyer belt 8 that is positioned at discharge pedestal 3 places.

Pattern 6 among Fig. 2 is installed on the bearing of making turntable 49, and this turntable is by gear drive 50 ^*Drive rotation, gear drive 50 ^*Then by variable speed electric motors, particularly or other suitable motor 51 ^*Drive.Turntable 49 is transplanted on pattern 6 first located sites and second located sites successively or selectively.The arm 16 of conveyer 15 is delivered to first located sites to the parison 22 that takes off from feed conveyor 27, in second located sites, pattern 6 is opened or opens, so that withdrawing device 10 can put forward goods 9 from corresponding pattern chamber, and the goods that this part puts forward are sent on the conveyer belt 8 that is positioned at discharge pedestal 3.Mould 6 can be one by one or is shifted to these two located sites by the order of any needs and gets on.The located sites that parison 22 is sent to also can be two or more, and simultaneously, the located sites of taking out goods from the pattern chamber also can be two or more.An advantage of machine shown in Figure 2 is that it can hold a large amount of pattern 6.And this machine provides a kind of like this possibility, promptly, employed conveyer 15 have among two or many arm 16(figure only draw one) or having one, to adorn two or more clamp 24(not shown) arm, in order to simultaneously parison 22 is put into two or more patterns 6.Similarly, withdrawing device 10 also can be designed to simultaneously a plurality of goods 9 be taken out from two or more patterns chamber.

Another advantage of machine shown in Figure 2 is that it can equip the conveyer 15 and the withdrawing device 10 of basic fixed respectively.Like this, the clamp of conveyer 15 must operation distance and the clamp of withdrawing device 10 institute must operation distance than the institute of these clamps in the machine of Fig. 1 necessary move apart from much shorter, in the machine of Fig. 1, pattern 6 is installed on the fixing bearing 1.But, if the device among Fig. 2 10 and 15 can move with respect to turntable 49,, then can increase the versatility of machine shown in Figure 2 greatly so that can easily reach on the turntable in any one selected pattern 6.The motion of device 10,15 and the motion of turntable 49 are stacked up, just can shorten to minimum degree (promptly by firm formed article 9 is taken out needed this section period from corresponding pattern chamber, parison blowing step 1 in the die cavity is finished, just goods are taken out from die cavity), and by shortening parison is put into newly

^*Original text is 150,151, the required time in the pattern 6 that modern label by Fig. 2 changes 50 into, 51-school person is available, improves the production efficiency of machine shown in Figure 2.Particularly when the turntable upper support a large amount of pattern, at this moment its garden circular velocity was relatively lower, so in the process of parison 22 being put into the pattern chamber, and in the process that goods 9 are taken out from the pattern chamber, turntable 49 can keep motion state.

Fig. 3 represents a kind of machine that has improved, and this machine has three equidistant open and close type patterns 6, and the garden around the ingredient table 63 of parison 22 of being distributed in is on week.Fig. 1 is replaced by a different conveyer with conveyer 15 among Fig. 2, this conveyer is a kind of lever conveyer 52, lever 52 has two arms that stretch out to relative both sides from vertical rotation axis 51, and rotating shaft 51 can be moved along the garden circular orbit shown in dotted line 62.Every arm all is made up of several parts or several sections.One arm like this, wherein has first section (first) 53 linking with rotating shaft 51 and with pivot 56 and first section 53 second section (second portion) 54 that links.Clamp 55 is housed on second section 54 the free end, is used for taking out parison 22 from ingredient table 63.The in addition one arm of lever 52 have in rotating shaft of being installed on 51 first section (first) 57 and with pivot 58 and first section 57 second section hinged (second portion) 59.Clamp 60 is housed on second section 59 the free end, is used for from the die cavity of contiguous pattern 6, taking out goods 61.Clamp 60 can move up and down, so that goods 61 are taken out from the die cavity of contiguous pattern 6.

When garden circular orbit 62 moved, lever 52 51 axis around the shaft rotated in rotating shaft 51.With so that rotating shaft 51 is not shown in Figure 3 along the device that garden circular orbit 62 moves.When rotating shaft 51 remain static and/or when rotating shaft 51 when track 62 moves, second section 54 and 59 can be with respect to corresponding

first section

53 and 57 rotate.The discharging direction of goods 61 is represented with arrow A in the machine shown in Figure 3.Clamp 60 can be placed on goods 61 on the conveying device, and this conveying device is moved along direction shown in the arrow A, finishes the task of conveyer belt 8 among Fig. 1 and 2.The course of work is preferably like this by row, that is, mentioning from corresponding pattern chamber, formed article 61 This moves take place simultaneously with the action of clamping parison 22 at ingredient table 63 with clamp 55.One works as parison 22 puts into a pattern of opening 6, and the module 25,26 of this pattern is just closed, begins to stretch and blow molding operation, and this parison is blow molded into goods 61.Pattern 6 is installed on the annular wall member of being located on the bearing 1 102.The feed conveyor of parison 22 is represented with arrow B.

Be used to control the device 64 that pattern module 25,26 moves shown in Fig. 4 and be used for making parison 22 to become the device of goods 61 between the open and close position, control module 25,26 open and closes of pattern in addition, and the device of the operation of blowing device.

Control device 64 comprises three cams and cam follow-up part 65,66 and 67.Parts 67 are used for the module 25,26 of open and close pattern 6; Parts 66 are used for regulating the amount of the gas-pressurized that enters parison 22; Parts 65 are used for starting and controlling the motion of tensile member 78, and this tensile member 78 extends parison 22 in the die cavity of corresponding pattern 6.Control device 64 also has cup-shaped tumbler 68, it has horizontal end wall or diapire 70, and from the annular wall 69 that end wall 70 extends upwardly, two flute profile cams 74,75 are arranged on the outer surface 72 of annular wall, the part of these two flute profile cams 74 and 75 difference component parts 65 and 66.The part of 71 component parts 67 of flute profile cam on the bottom surface 73 of end wall 70.The wheel hub 112 of cup-shaped tumbler 68 can rotate in anti-friction bearing or other suitable bearing 113, and 113 on bearing is contained on the bearing 1.

Aforementioned annular wall 102 is housed on the bearing 1, and it uses jointly for 3 patterns 6, perhaps, also can be the vertical wall 102 that 3 patterns are provided with separation respectively.Wall 102 annular or that separate is supporting the roller follower in can be on it the movable follow-up unit 65,66 and 67.Hold roller follower 84 in the flute profile cam 74, hold roller follower 83 in the flute profile cam 75.Along with cup-shaped tumbler 68 with respect to wall 102(that is with respect to pattern 6) rotation and make the device 76 of component movement of blowing device comprise the part of one group of link rod, lever and so on, these parts drive their motions by follower 83 and 84.Be noted that the cam 75 of follower 83 is positioned at the below of the cam 74 of follower 84.

The follower 84 of top passes motion to a Compressed Gas connector 77, a clamper and a manipulation device 114 that is used for valve 200 is housed on the connector 77, in the time will making gas-pressurized (for example compressed air) enter in the parison 22 in the pattern chamber, valve 200 must be opened.Have on the clamper 114 with parison 22 on the device that engages hermetically of jut 80, to prevent when the type base in the die cavity of pattern 6 being filled gas And its is expanded, having gas-pressurized to spill.When clamper 114 since the motion of follower 83 and Xia when Jiang And and jut 80 sealed engagement, valve 200 is just opened thereupon automatically.

Follower 84 starts and controls the motion of tensile member 78.All be provided with independent tensile member 78 and independent clamper 114 on each mould 6.

Clamper 114 shown in Figure 4 links with an end of the lever 79 that can pivot, and lever 79 is installed on the pivot 81 of wall 102, and its galianconism links with the link rod 82 that transmits motion, and this link rod 82 is driven by the follower 83 of cam 75.The link rod 82 that transmits motion moves up and down less distance just can make clamper 114 and valve 200 do moving up and down of big distance.When clamper 114 falls, partly 80 sealed junctions are fashionable with the projection of parison 22 in the adjacent pattern 6, and valve 200 is just opened automatically.When the whole inputs of the gas-pressurized of required flow finish, cup-shaped tumbler 68 makes follower 83 pivot (as shown in Figure 4) to lever 79 by counter clockwise direction, so clamper 114 is upwards mentioned, leave bossing 80, simultaneously, valve 200 cuts out automatically, stops to import in parison 22 gas-pressurized (and before this, parison has become goods 61).Subsequently, parts 67 are opened corresponding pattern 6, so that clamp 60 can propose goods 61 from the pattern chamber, preparation is delivered to it along direction shown in the arrow A and transported on the conveyer belt of goods 61.

Follower 84 on the cam 74 links with the link rod 85 that transmits motion, and link rod 85 can pass motion to the input element 87 of a cover acceleration gearbox 86 again.Acceleration gearbox also has output element 88 and centre (transmission) element 89.Output element 88 can make the member 99 that pinches that is used for promoting the tensile member 78 on corresponding stretch blow forming station move.The purposes of the intermediary element 89 in the speed changer 86 is the long displacements that the short displacement of input element 87 changed into output element 88 and tensile member 78.

Between the input element 87 of link rod 85 that transmits motion and speed changer 86, frictional connection device 94 is housed.Input element 87 is a kind of belt-type drive devices, and it has 90,91 and one of two toothed belt pulleys interior toothed belt 93 on these two toothed belt pulleys.Frictional connection device 94 contacts with the outer surface of interior toothed belt 93.The outer surface of interior toothed belt is very coarse, to guarantee with hookup 94 sufficient frictional force being arranged.Frictional connection device 94 is one, and a friction backing plate that is installed on the link rod 85 that transmits motion perhaps can be arranged, And and be pressed on the outer surface of toothed belt 93.

The output element 88 of speed changer 86 also has two toothed belt pulleys 97 and the one interior toothed belt on these two toothed belt pulleys.Interior toothed belt 98 pass motion to promote tensile member 78 pinch member 99.

The belt pulley 97(that the intermediary element 89 of speed changer 86 comprises a large diameter belt pulley 95 and a minor diameter for example, can be the prolongation of output element 88 top belt pulleys), belt pulley 95 is fixedly connected with belt pulley 90 coaxial lines of input element 87 and with it; 97 of belt pulleys transmit moments of torsion to output element 88.Article one, internal tooth endless-belt 96 guarantees along with hookup 94 moves up and down short distance on the belt pulley 95 and 97 of intermediary element 89, and tensile member 78 can move long distance.Pinching member 99 can be and the identical member of hookup 94 effects, promptly, it can comprise a friction backing plate with rough surface, this backing plate is pressed on the coarse outer surface of the annular internal tooth belt 98 of output element 88, move up and down thereby drive tensile member 78, which the partial contour curve that depends on cam 74 that moves up and down of tensile member 78 is driving follower 84 along moving on the track of cam 74.Pinching member 99 can be fastened on the tensile member 78.

A parison 22 that is being blow molded into goods 61 has been shown among Fig. 4.Tensile member 78 shown in the figure is in retracted position, leaves the diapire of biaxial stretch-formed parison 22 in its lower end, this position.When bossing 80 and clamper 114 sealed engagement, valve 200 is opened, and gas-pressurized is entered in the parison 22.Clamper 114 can have one or more sealing rings, and the sealing ring directly engages with the bossing 80 of parison 22 in the die cavity of adjacent pattern 6.Clearly, goods 61 are being proposed from the die cavity of corresponding pattern 6, or before it is taken away, just withdrawal fully from the goods of just having made 61 of tensile member 78.At this moment, the follower that is positioned at the cam 71 on the bottom surface of cup-shaped tumbler 68 end walls 70 makes the module 25,26 of pattern 6 remain on open position.

Transmit the bottom of the link rod 82 of motion among Fig. 4 and led by the chute on the wall 102 100, the bottom of transmitting the link rod 85 that moves is then by second chute, 101 guiding.Wall 102 among the figure constitutes a complete garden week or a combined enclosure (see figure 3) around three patterns 6, and these three patterns 6 are round ingredient table 63 and track 62, and track 62 is equipped with the tracks of the rotating shaft 51 of the lever 52 that transmits parison and take out product above being.The member 82,85 of a pair of transmission campaign all is provided separately for each pattern 6 as mentioned above.But cup-shaped tumbler 68 and circulation ring cam set 71,74 thereof and 75 then are public for these three patterns 6.In the middle of three ring cam sets two, promptly the contour curve of cam 74 and cam 75 is illustrated among Fig. 5 with the form of expanded view.

Cam 74 and 75 profile are designed to can not make the link rod 82,85 of three transmission campaigns on the blow moulding station to produce rapid acceleration or deceleration.Preferably guarantee link rod 82,85 with constant speed motion, this constant speed is easy to obtain by the contour curve of selecting cam 74 and 75 rightly.As shown in Figure 5, cam 75 has a salient angle 103, when tumbler 68 rotates around its vertical axis, when salient angle 103 arrives corresponding pattern 6 places, this salient angle 103 makes corresponding follower 83 that clamper 114 is descended, and it is engaged with the bossing 80 of adjacent parison 22.The two sides 104,105 of salient angle 103 preferably with the angle of 106 one-tenth 100～150 ° of the remainders of the horizontal plane of end wall 70 and cam 75, preferably approaching or be 135 ° just.

Cam 74 has first highly lower section 112 and highly higher second section 107,108 in the end.When corresponding tensile member 78 remained on lifting position, roller follower 84 was along the orbital motion of section 112.Transition region between two section 107-108 of cam 74 and 112 preferably seamlessly transits gradually, and becomes 40～60 ° angle with the horizontal plane of end wall 70.These two transition regions are perhaps can be symmetrical.

Differential seat angle between two section 107-108 of the maximum angle of the salient angle 103 of cam 75 and cam 74 and 112 has determined the vertical displacement of clamper 114 and tensile member 78 respectively.Usually, excessive for fear of the acceleration of the link rod 82 that transmits motion and 85, above-mentioned difference in height should be less.

Also have a gear 168 among Fig. 4, it constitutes in order to drive cup-shaped tumbler 68 rotates this device around its vertical axis a part.For clarity sake, three patterns 6 that only draw among Fig. 3; But the machine among Fig. 3 and Fig. 4 can comprise two, four or more pattern, and this does not deviate from flesh and blood of the present invention.

The conveyer belt 27 of parison 22 being delivered to the device of ingredient table 2 or 63 can flatly be arranged on the top of bearing 1.But, also this feeding device can be horizontally set on the below of the bearing of pattern 6, and proper device (for example mechanical lifting device or aspirator be set, these devices do not illustrate in the drawings) parison 22 is mentioned the position that highly is higher than bearing from the feeding device of height below bearing 1, so that clamp parison with clamp 24 or 55.

Fig. 6 represents, can be with the conveyer (for example resembling the conveyer 15 among Fig. 1) of conveyer 28 replacement activities, and conveyer 28 has one group of fixing chute 29, and the upper end of each chute 29 is near ingredient table 2, and its lower end 30 is near corresponding patterns 6.Each chute 29 forms a passage, and parison 22 slides to corresponding pattern 6 by gravity from ingredient table 2 in this passage.Releasable (for example retractible) locker is equipped with in the lower end 30 of chute 29, or stop gauge, or gate 31, block the parison 22 of close corresponding pattern 6 with it, and when in a single day adjacent pattern chamber is ready to admit new parison, promptly one when the goods of just having made take out, the just withdrawal automatically of this gate 31.

Parison 22 can only lean on gravity, also can be; And sends into parison selected chute 29 and/or parison is moved ahead chute from conveyer belt 27, also can adopt gravity and pneumatic two kinds of effects by means of suitable mechanical device or pneumatic means-for example spray compressed-air actuated nozzle to make it leave the delivery end of feed conveyor 27.Along with opening of corresponding pattern 6, or after opening, pattern 6 postpones a period of time, locker 31 (for example can unclamp automatically, withdrawal), a period of time of above-mentioned delay is in order to take out firm system formed article 9 or 61 before locker 31 unclamps or withdraws and to provide from the pattern chamber, after locker was opened, parison just can leave chute 29 and enter in the adjacent pattern chamber.

Fig. 7 represents the part of another stretch blow forming machine.In this machine, be used for that the device that parison 22 is sent in the selected pattern 6 is had only an independent chute 33, the upper end 32 of this chute 33 is near ingredient table 2, and a locker 35 is equipped with in its lower end.Upper end 32 can be rotated around vertical axis 34, and locker 35 just can be advanced along an arc track of the pattern 6 of close annular arrangement like this, and pattern 6 is round ingredient table 2 arrangements, and is fixedly mounted on the bearing 1.Being used for making single chute 33 can be a stepper motor or any other proper device around the device that axis 34 rotates, it can make chute 33 turn over the angle of a required size, makes locker 35 Dui Zhun And prepare to admit that pattern 6 of parison 22 near its die cavity.The calibration alignment device is decided procedure operation according to giving.The course of work is preferably arranged like this, promptly, after opening pattern 6, locker 35 just automatically moves on the suitable position, so that open locker, parison 22 being entered in this pattern chamber, preferably also have one automatically delaying period, is necessary for the goods of just having made are taken out from this pattern during this period of time.

Parison 22 reliable gravity slip away chute 33 and enter in the contiguous pattern chamber (promptly, suitably select the angle of inclination of the slideway of chute 33), perhaps, the oriented nozzle that can spray compressed air by means of suitable configuration or spray other suitable fluid is helped parison and is entered in the pattern chamber.Can also add mechanical gatherer or replace spraying the nozzle of compressed air or other fluid with it.

Referring again to Fig. 1, withdrawing device 10 can be but be not must be from the outside near the bearing 1 of pattern 6.For example, it can be in the zone 4 that is arranged on movably in the ring-type formation 5 of pattern 6.This modification is similar to structure shown in Figure 3, and in Fig. 3, lever 52 is a part of parison 22 being sent into the conveyer in the pattern 6, also is a part that is used for withdrawing device that goods 61 are taken out from the pattern chamber.The advantage of structure shown in Figure 3 is that the withdrawing device that clamp 60 is housed leaves all patterns 6 than the withdrawing device among Fig. 1 10 ^*All closer.On the other hand, the device 10 of Fig. 1 has such advantage, that is, it can be dismantled and can not hinder feed conveyor 27 to transmit parison 22, also can not hinder parison 22 is delivered to the die cavity of pattern 6 from ingredient table 2.

Can also further improve above-mentioned machine according to a kind of like this mode, that is, discharge pedestal 3 is arranged on around in the space 4 in the ring-type formation 5 of ingredient table 2 or 63 patterns of arranging 6.

^*Original text is 3, is 6 mistake-translators

For example, can on the bearing 1 of Fig. 1, offer an opening (not shown), so clamp 12 is movable on the position of this opening top, herein, clamp 12 is decontroled goods 9, and goods 9 just fall from this opening, and are caught by the collection container that is positioned at bearing 1 below; Perhaps, goods 9 are fallen on the conveyer belt that plays conveyer belt 8 among Fig. 1.Further, also can be higher than ingredient table 2 above the horizontal conveying belt of goods 9 or 61 is set, and outfit has the withdrawing device 10 of appropriate device, rise on the height of this overhead conveyer belt in order to the goods of just having made 9 that taken out, these goods can be attracted on this conveyer belt, also can goods be clamped on this conveyer belt with any other suitable mode.The device that the advantage of taking-up goods of just having described 9 or 61 mode is withdrawing device 10 or plays the taking-up effect from the die cavity of pattern 6 to the discharge pedestal that is higher than ingredient table 2 must process distance shorter.

The embodiment of the machine that the embodiment of the method that all have improved and all have been improved has such advantage, that is, the quantity of the blow molded product of producing in the time per unit is than with known machine before this with by the output height of known method before this.Its reason is, no matter pattern be stationary fixing or around the rotation of parison ingredient table, always parison 22 is sent on the center that is positioned at the formation that pattern lines up.Even mould is made step-type garden Zhou Yundong around ingredient table since when parison is put into the pattern chamber and/or at finished product when take out in the pattern chamber, mould still remains static, so the output of this machine that has improved also is high.Make pattern 6 put into parison during and take out the blow molded product make during keep motion state, also in extent of competence of the present invention.

The significant advantage of the embodiment of use stationary mould of the present invention (comprising the machine among Fig. 1 and Fig. 3 to 7) is, installation mold has been simplified the input of gas-pressurized, heating liquid, cooling agent like this, simplified on the pattern or pattern near the electric energy supply with electric power parts that handle or current sinking.This point is readily appreciated that, because be used for providing the conduit of gas-pressurized needn't comprise parts fixing and that move to the clamper (as 114) of valve (as 200), conduit can be from fixing pressurized-gas source one through to each clamper.As long as use short flexible conduit, so that clamper 114 can move up and down in certain distance is just passable, above-mentioned distance is for all being necessary with bossing 80 fluid-tight engagement of the potted component of clamper and parison 22 and for take out blow molded product easily from the pattern chamber.In addition, if the mobile device that is used for clamper 114 and tensile member 78 are moved with respect to pattern 6 is and fixing pattern collaborative work, then the structure of these mobile devices will be simply and cheaply.Be to be used for preventing that gas-pressurized in the machine from spilling several times of the life-span phase of giving of the potted component that comes in parison is blow molded into the process of hollw article from the pattern that is kept in motion the service life that has been found that the potted component that uses together with fixed mould.

Require another fixing reason of pattern to be, can simplify the design that is used for to the parts of pattern supply heating liquid and cooling liquid (being water specifically) like this.Learn, adopt central authorities to be provided with one group of stationary mould of parison ingredient table, can make the adaptive capacity of the machine that has improved become hundred times of ground to improve with utilization rate.Aspect the economy of operation same effect is being arranged also through improved machine.Blow moulding machine with stationary mould is very simple, compact and reliable.Its control is simple and cheap, and the traditional type blow moulding machine that institute's energy requirement is made garden Zhou Yundong than those patterns is wanted much less.In addition, make the blow moulding machine of garden Zhou Yundong with pattern and compare, control more reliably, the levels of precision of operation is also much higher.

Through improved machine, no matter it uses stationary mould or movable pattern, its another significant advantage is that it can be adjusted at an easy rate and blow out two or more dissimilar blow molded products in the operation of once carrying out simultaneously.Use identical several parisons, or use two or more parisons dissimilar and/or different size can accomplish this point.The adjustment of blowing operation is very simple and reliable, guarantees that the wall thickness of each blow molded product reaches or very approaching required optimum wall thickness.Like this, with regard to the consumption of thermoplastic, can obtain remarkable economic efficiency, accurately calculate earlier because the required quantity of material of making single-piece goods can give.

Since employed control device in having the machine of stationary mould (comprising detector, sensor, adjusting device, measurement mechanism and other device) do not bear excessive stress And and can be fixedly mounted on institute's control assembly near, thereby the work quality of the employed detector of machine of the present invention, sensor and like is very high, and they can control the operation of machine with the unrivaled accuracy of blow moulding machine up to now.Therefore, the available computers control system is controlled the machine that has improved.Yet, in this machine, use semi-automatic or mechanical control device too within interest field of the present invention.No matter selected control device is the sort of type (no matter being programme controlled, semiautomatic control or hand-guided), this machine can be selected best heating rules and/or cooling rules individually for each pattern; Indivedual parisons of selecting are sealed in time in each pattern chamber, if this machine that has improved is a stretch blow forming machine, then also can adjust the biaxial stretch-formed degree of parison individually; Perhaps, can also indivedual select any one or the parameter of influential product quality and machine efficiency.For example, consider the characteristic of the thermoplastic that is admitted to the different parisons in each pattern, the control device of this machine can be selected the Temperature Distribution of each pattern 6 individually.If machine of the present invention is used for making the container of bottle and so on, then it can produce high-quality bottle, and its weight ratio is light by 5% to 20% with the onesize bottle of traditional production of machinery.

Each machine as shown in the figure can be handled by a kind of like this mode,, when newly formed goods 9 or 61 firm taking-ups, just immediately parison 22 is put into this pattern that is available 6 that is.The pattern that this mode of operation and machine are to use stationary mould also to be to use one group of geometric pattern base ingredient table to make garden Zhou Yundong has nothing to do.When pattern was made garden Zhou Yundong, placement parison of describing just now 22 and the mode of taking out goods 9 or 61 can reduce the essential number of times that interrupts of pattern garden Zhou Yundong, can put into a parison at least because interrupt motion each time, can take out goods simultaneously at least.The minimizing of pattern garden Zhou Yundong interruption times helps machine to move more smooth-goingly, help to improve the output of machine, help to improve the degree of reliability of blowing operation, because frequent acceleration and deceleration the machine that the parison in the pattern chamber needn't resemble is known at present, pattern is made garden Zhou Yundong.

Parison ingredient table 2 or 63 is arranged on the stationary mould of lining up a circle or rotate the center of pattern or its near, this also has very important advantage.For example, when when known mode is supplied parison so far, the parison ingredient table that new parison is sent to is arranged on the outside of the circular orbit that rotates pattern.Therefore, always need to reduce the movement velocity that will admit the pattern of parison, or block this pattern with concrete way, same, in traditional machine, also to do like this when from the pattern chamber, taking out finished product.The quickening repeatedly and slow down of pattern need possess a large amount of control device ， And and must make moving-member produce very big wearing and tearing.And as above having pointed out, traditional blow moulding machine is unsuitable for producing simultaneously two or more dissimilar blow molded products because this will make electric energy, add hot fluid, the control of cooling agent and gas-pressurized and regulate complicated more.

Machine shown in Fig. 1 and Fig. 3 to 7 also has other advantage, that is, the weight of moving-member (for example the device among Fig. 1 10,15, the lever 52 among Fig. 3, and the chute among Fig. 7 33) is the very little part of the combination weight of pattern and rotary support thereof.This has just reduced the device energy needed that moves these parts, also makes these devices move these parts with the speed more much higher than the speed of the turntable that a large amount of patterns are housed simultaneously.And the acceleration of conveyer and/or withdrawing device or the required time ratio that slows down are installed in the acceleration of a large amount of moulds on the rotary support or the used time of slowing down is wanted much shorter.

Need not further analysis, above said content has just disclosed main points of the present invention so fully, to cause people to rely on existing knowledge can make the present invention be applied to various different occasions at an easy rate and not lose its characteristics, from the viewpoint of prior art, these characteristics constitute the essential characteristic of the present invention to the contribution of general and special these two aspects in present technique field.Therefore, this application should and in fact also be to belong within the protection domain of claim of the present invention.

Claims

1, a kind of method of operating thermoplastic blanks and making blow molded product comprises the feed step that parison is infeeded ingredient table: with the positioning step of a plurality of blowing patterns around the ingredient table placement; Single parison is sent to transfer step the single pattern from ingredient table; Parison in the corresponding pattern is made the blowing step of blow molded product; And the taking-up step that goods are taken out from corresponding pattern.

2, in accordance with the method for claim 1, it is characterized in that the step that goods are taken out was right after before the step that parison is sent in the corresponding pattern from pattern.

3, in accordance with the method for claim 1, it is characterized in that, above-mentioned positioning step comprises to two patterns of major general to be placed round ingredient table, and blowing is arranged in the step of the parison of one of at least two patterns and takes place simultaneously with another the step of parison being sent into two patterns, and vice versa.

4, in accordance with the method for claim 1, it is characterized in that above-mentioned transfer step was carried parison along arc track before parison is put into pattern.

5, in accordance with the method for claim 4, it is characterized in that above-mentioned arc track is a circular orbit, comprise goods center to circular orbit from corresponding pattern is transmitted and take out step.

6, in accordance with the method for claim 4, it is characterized in that above-mentioned arc track is a circular orbit, comprise goods to direction transmission away from the circular orbit center and take out step.

7, in accordance with the method for claim 1, it is characterized in that, above-mentioned positioning step comprises pattern is placed on the ring of the garden of ingredient table, and transfer step comprises that clamping the Xing Pi And that is arranged on the ingredient table delivers to the parison of clamping the pattern that is positioned on the ring of garden.

8, in accordance with the method for claim 1, it is characterized in that, take out step and comprise goods are lifted out corresponding pattern.

9, in accordance with the method for claim 1, it is characterized in that, it also is included in the process of carrying out above-mentioned feed, transmission, blowing and taking-up step, the clamping pattern makes it keep motionless clamping step with respect to motion of ingredient table; And and, the process that parison is sent to one of pattern takes place simultaneously with the process that will be blow molded into goods at the parison in another pattern.

10, in accordance with the method for claim 9, it is characterized in that above-mentioned transmission and taking-up step are included in has a conveyer of running continuously at least between ingredient table and the pattern.And receives parison and the parison that is received is put into the instrument of pattern and received the instrument of goods from pattern for this conveyer is equipped with at ingredient table.

11, in accordance with the method for claim 10, it is characterized in that above-mentioned transfer step comprises to give fixed order the parison on the ingredient table is sent in the pattern, comprise to give fixed order the goods in the pattern are taken out from pattern and take out step.

12, in accordance with the method for claim 1, it is characterized in that transfer step has been used the portable clamp of single parison.

13, in accordance with the method for claim 1, it is characterized in that, take out step and comprise that goods are mentioned goods that ， And will mention to be delivered to goods and store and discharger from corresponding pattern.

14, in accordance with the method for claim 1, it is characterized in that transfer step comprises from ingredient table takes out a plurality of parisons simultaneously.

15, in accordance with the method for claim 1, it is characterized in that, take out step and comprise just few to take out goods simultaneously in two patterns.

16, in accordance with the method for claim 1, it is characterized in that transfer step comprises with pneumatic mode and from ingredient table parison being transported to the pattern.

17, in accordance with the method for claim 1, it is characterized in that the taking-up step comprises with pneumatic mode takes out goods from pattern.

18, in accordance with the method for claim 1, it is characterized in that transfer step comprises uses the gravity supply mode to carry parison.

19, in accordance with the method for claim 1, it is characterized in that the taking-up step comprises uses the gravity mode to discharge goods.

20, in accordance with the method for claim 1, it is characterized in that transfer step comprises with gas-pressurized carries parison.

21, in accordance with the method for claim 1, it is characterized in that the taking-up step comprises with gas-pressurized discharges goods.

22, be used to operate thermoplastic blanks and blow molded product, the machine of stretch blow molded article particularly, it comprises the device of forming ingredient table; Parison is infeeded the device of ingredient table; A plurality of blowing patterns round the ingredient table setting; Parison is sent to the pattern so that it is blow molded into the device of blow molded product from ingredient table; And the device that goods are taken out from pattern.

23, according to the described machine of claim 22, it also comprises the bearing of a supporting pattern.

24, according to the described machine of claim 23, it is characterized in that bearing is fixed, and conveyer can move with respect to ingredient table and pedestal mounted pattern.

According to the described machine of claim 23, it is characterized in that 25, it also comprises the device that pattern is moved with respect to ingredient table.

According to the described machine of claim 25, it is characterized in that 26, mobile device is that fixed track is given in one of pattern formation; Conveyer comprises parison is sent to device in the pattern of the first of track; And withdrawing device comprises the device that goods are discharged from the pattern of the second portion that is positioned at track.

27, according to the described machine of claim 23, it is characterized in that conveyer is fixed with respect to bearing.

According to the described machine of claim 23, it is characterized in that 28, conveyer is movably with respect to bearing.

According to the described machine of claim 22, it is characterized in that 29, conveyer comprises a plurality of clamps that clamp a plurality of parisons and the device that moves these clamps between ingredient table and pattern.

According to the described machine of claim 22, it is characterized in that 30, conveyer comprises a plurality of clamps that clamp a plurality of parisons.

According to the described machine of claim 22, it is characterized in that 31, conveyer comprises a plurality of clamps that clamp a plurality of parisons and the device that moves these clamps between ingredient table and pattern at least with a constant speed.

According to the described machine of claim 22, it is characterized in that 32, conveyer comprises a plurality of clamps that clamp a plurality of parisons, and withdrawing device is arranged on the conveyer.

33, according to the described machine of claim 22, it is characterized in that, conveyer comprises a plurality of clamps that clamp a plurality of parisons, and decontrol the device that moves these clamps between the pattern at parison place at the ingredient table at clamp clamping parison place and clamp, And and also comprise the device of controlling above-mentioned mobile device.

34, according to the described machine of claim 33, it is characterized in that conveyer comprises a lever with many arms, and make lever around the device that is arranged on the axle rotation between these arms, clamp is arranged on the one arm, and withdrawing device is arranged on other one arm.

According to the described machine of claim 34, it is characterized in that 35, control device comprises the device that above-mentioned axle is rotated around ingredient table along a track that is actually garden shape.

According to the described machine of claim 34, it is characterized in that 36, every one arm comprises can be around first that axis rotates and can be with respect to the second portion of first's rotation, clamp and withdrawing device are contained on the second portion of respective arms.

37, according to the described machine of claim 34, it is characterized in that, control device comprise make withdrawing device with one in have the pattern of goods to aim at, a device that parison is aimed on making clamp simultaneously and being positioned at ingredient table.

According to the described machine of claim 37, it is characterized in that 38, pattern is an open and close type.

39, according to the described machine of claim 22, it is characterized in that, each pattern all is the open and close type pattern, and pattern has the polylith module and forms the die cavity that holds parison and goods, between open position and closing position, at least each pattern module can move with respect to an other at least module, at open position, parison can be put into chamber, or from chamber, take out parison, in closing position, parison or goods are limited in the chamber.

According to the described machine of claim 39, it is characterized in that 40, it also is included between the open and close position device of at least one module at least two modules of mobile pattern and controls the device of this mobile device action.

According to the described machine of claim 40, it is characterized in that 41, control device comprises cam and cam follow-up device.

According to the described machine of claim 41, it is characterized in that 42, control device also comprises the device that cam gear is moved with respect to pattern.

According to the described machine of claim 42, it is characterized in that 43, cam gear comprises the ring cam set of at least one corral around ingredient table.

According to the described machine of claim 40, it is characterized in that 44, control device comprises a tumbler and drives the device that tumbler rotates round an axis on the ingredient table.

45, according to the described machine of claim 44, it is characterized in that, tumbler comprises an end wall, control device also is included in the cam gear on this end wall and follows the hunting gear ， And of cam dress system motion and said apparatus can be handled each module in two patterns and moves with respect to another piece module of corresponding pattern along with the rotation of tumbler.

46, according to the described machine of claim 45, it is characterized in that, tumbler also comprises an annular wall and the additional cams device that is contained on the annular wall, and comprises the device that parison is blow molded into goods, and this blowing device has the additional hunting gear of following the motion of additional cams device.

According to the described machine of claim 46, it is characterized in that 47, the additional cams device on annular wall comprises a flute profile cam at least.

According to the described machine of claim 46, it is characterized in that 48, the blowing device comprises and is used for making gas-pressurized to flow into valve in the parison in pattern chamber, and the device of control valve, manipulation device is driven by additional hunting gear.

49, according to the described machine of claim 48, it is characterized in that, manipulation device comprises the clamper of clamping valve, and along with the displacement of the rotation of tumbler and the additional hunting gear that causes therefrom, clamper can be reciprocating with respect to the parison in the pattern chamber.

According to the described machine of claim 49, it is characterized in that 50, each clamper includes and seals up the device that is in the parison in the pattern chamber, so that when valve is opened, prevent that gas from leaking out from parison.

According to the described machine of claim 46, it is characterized in that 51, the blowing device comprises the device of parison in the mechanical stretching pattern chamber, and stretching device is driven by above-mentioned additional hunting gear.

According to the described machine of claim 51, it is characterized in that 52, the blowing device also comprises the acceleration gearbox between stretching device and additional hunting gear.

53, according to the described machine of claim 52, it is characterized in that, the raising speed speed change gear comprises an input element that is driven by additional hunting gear, be connected in the output element that moves together with it on the stretching device, and by input element Qu Dong And this motion is passed to output element ， And and make the intermediary element of the move distance of output element greater than the move distance of input element.

According to the described machine of claim 53, it is characterized in that 54, at least one element in the speed change gear is belt and pulley gear.

55, according to the described machine of claim 53, it is characterized in that, intermediary element is belt and pulley gear, and it has the major diameter belt pulley that is driven by input element, drives the small diameter pulleys of output element and the annular flexible component on the belt pulley.

According to the described machine of claim 53, it is characterized in that 56, conveyer also comprises a rubbing action hookup between additional hunting gear and input element.

According to the described machine of claim 48, it is characterized in that 57, it also comprises a rubbing action hookup that is positioned between additional hunting gear and blowing device.

According to the described machine of claim 48, it is characterized in that 58, the additional cams device on annular wall comprises an independent salient angle, it drives additional hunting gear valve is opened.

According to the described machine of claim 58, it is characterized in that 59, two sides of salient angle become 100～150 ° of angles with the remainder of the additional cams device on annular wall.

According to the described machine of claim 59, it is characterized in that 60, an above-mentioned at least angle is near 135 °.

61, according to the described machine of claim 48, it is characterized in that, additional cams device on annular wall comprises first cam and second cam, additional hunting gear comprises first follower of following first camming movement and second follower of following second camming movement, end wall is level basically, and tumbler rotates round vertical axis, above-mentioned first follower moves with clamper Lian Jie And, the height of first cam is lower than the height of second cam, the blowing device also comprises the device of parison in the mechanical stretching pattern chamber and is driven by second follower, the device that stretching device is moved with respect to pattern.

According to the described machine of claim 61, it is characterized in that 62, second cam is a ring cam set, and be included in first section and second section that is positioned on second height that is different from first height on first height.

According to the described machine of claim 62, it is characterized in that 63, the height of first section is lower than the height of second section.

According to the described machine of claim 62, it is characterized in that 64, the length of first section on the week of annular wall garden equals or about the length that equals second section.

According to the described machine of claim 62, it is characterized in that 65, second cam also comprises the transition region of the gradual change between first and second sections.

According to the described machine of claim 65, it is characterized in that 66, the inclination angle of above-mentioned relatively two sections of transition region is between 40～60 °.

According to the described machine of claim 22, it is characterized in that 67, conveyer comprises a chute that is used for parison at least.

According to the described machine of claim 67, it is characterized in that 68, chute has the parison that just can guarantee to enter chute by gravity and slides to gradient in the pattern.

According to the described machine of claim 22, it is characterized in that 69, conveyer comprises at least one hopper and the parison in the hopper is delivered to device the selected pattern from ingredient table with pneumatic mode.

70, according to the described machine of claim 22, it is characterized in that, conveyer is provided with a chute for each pattern, and each chute has the upper end of contiguous ingredient table and the bottom of contiguous corresponding pattern, and conveyer also comprises the locker of releasable chute bottom.

According to the described machine of claim 22, it is characterized in that 71, pattern forms a garden ring around ingredient table.

According to the described machine of claim 71, it is characterized in that 72, ingredient table is arranged on or approaches the center of above-mentioned garden ring.