CN1055890C - Hollow forming machine - Google Patents
Hollow forming machine Download PDFInfo
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- CN1055890C CN1055890C CN97100418A CN97100418A CN1055890C CN 1055890 C CN1055890 C CN 1055890C CN 97100418 A CN97100418 A CN 97100418A CN 97100418 A CN97100418 A CN 97100418A CN 1055890 C CN1055890 C CN 1055890C
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Abstract
The present invention relates to a hollow forming machine which comprises an extruding machine (2), a pair of mold matching devices (3, 3') and driving devices (4, 4'), wherein the driving devices (4, 4') drive punching pins (40, 40') into molds (30, 30') in the mold matching devices (3, 3'), a mold blank P extruded by the extruding machine (2) is clamped through the alternate conversion of the mold matching devices (3, 3'), and the driving devices (4, 4') are used for driving the punching pins (40, 40'). The present invention is characterized in that the mold matching devices (3, 3') and the molds (30, 30') on the mold matching devices (3, 3') are opened and closed at the same direction.
Description
Employed hollow forming machine when the present invention relates to a kind of employing inflation forming process and making hollow object especially relates to a kind of two reciprocating type hollow forming machine that two mold closing mechanisms are housed.
As everyone knows, the hollow forming machine 100 as shown in Figure 13 of the two reciprocating type hollow forming machine with two mold closing mechanisms in the past, this hollow forming machine 100 is provided with: extruder 120, a pair of mold closing mechanism 130,130 ', impulse pin 141,141 ' is squeezed into fastener driving device 140,140 ' in mold closing mechanism 130,130 ' mould 131,131 ', by above-mentioned mold closing mechanism 130,130 ' alternately conversion, the parison clamping in addition that to extrude from the crosshead 121 of above-mentioned extruder 120, and inflate after utilizing above-mentioned fastener driving device that impulse pin is squeezed into.
In the hollow forming machine 100 of above-mentioned the past, because above-mentioned mold closing mechanism 130,130 ' opens and closes direction (direction that paper passes among Figure 13) with this mold closing mechanism 130,130 ' mould and is mutually right angle orientation (positive direction among Figure 13) arrangement, therefore, the drip molding withdrawing device also need dispose two in both sides.In addition, for avoid when mold closing mechanism 13,13 ' crosshead below interference arranged mutually when stopping, should so that wait to keep away, also must also to get bigger greater than the platen width at interval the amount of movement of mold closing mechanism.Like this, the erection space of equipment increases, and this is that problem to be solved is arranged.Moreover, fastener driving device 141,141 ' is to have only when mold closing mechanism 130,130 ' to place when waiting to keep away the position, the side squeezes into from the top and is provided with, therefore, for with to change parison P composition etc. corresponding, when setting up the pressure mark device that extruder 2 or configuration embossed marks use, in the general layout of device, get into trouble.
First purpose of the present invention is to provide a kind of taking-up of drip molding can realize and can reduce significantly again the hollow forming machine of erection space by a system.
Second purpose of the present invention is to provide a kind of and sets up extruder or dispose when pressing the mark device the hollow forming machine that no longer gets into trouble in the general layout of device.
What claim 1 of the present invention was put down in writing is a kind of hollow forming machine, it is provided with: extruder, a pair of mold closing mechanism and impulse pin squeezed into fastener driving device in this a pair of mold closing mechanism mould, alternately conversion by above-mentioned mold closing mechanism, the parison clamping in addition that to extrude from above-mentioned extruder, and inflate after utilizing above-mentioned fastener driving device that impulse pin is squeezed into, the feature of this hollow forming machine is that the mould switching direction on above-mentioned a pair of mold closing mechanism and this mold closing mechanism is to arrange in the same way, thereby reaches above-mentioned first purpose.
What claim 2 of the present invention was put down in writing is the hollow forming machine that claim 1 is put down in writing, it is characterized in that above-mentioned fastener driving device can be squeezed into from the below of above-mentioned mould by the connecting rod on the above-mentioned mold closing mechanism or platen plate supporting and impulse pin, thereby reach above-mentioned first and second purpose.
In the hollow forming machine that claim 1 of the present invention is put down in writing, alternately conversion by above-mentioned a pair of mold closing mechanism, the parison clamping in addition that to extrude from above-mentioned extruder, and inflate after utilizing above-mentioned fastener driving device that impulse pin is squeezed into, but because the mould on above-mentioned a pair of mold closing mechanism and this mold closing mechanism opens and closes direction for arranging in the same way, for this reason, only disposing a withdrawing device in a side of this a pair of mold closing mechanism gets final product, thereby, the available system of the taking-up of drip molding realizes, and can reduce the equipment erection space significantly again.
In the hollow forming machine that claim 2 of the present invention is put down in writing, above-mentioned mold closing mechanism is by connecting rod or platen plate supporting, and above-mentioned impulse pin can be squeezed into from the below of above-mentioned mould, therefore, for with to change parison P composition etc. corresponding, when setting up the pressure mark device that extruder or configuration embossed marks use, in the general layout of device, no longer arrive trouble.
Brief Description Of Drawings
Fig. 1 is the major part overview plane of expression hollow forming machine the 1st embodiment of the present invention.
Fig. 2 is that the A-A of Fig. 1 of hollow forming machine of same embodiment is to looking sectional drawing.
Fig. 3 is the major part overview side view of the hollow forming machine of same embodiment.
Fig. 4 is the major part plane of mold closing mechanism of the hollow forming machine of the same embodiment of expression.
Fig. 5 is the plane of collapsing length guiding mechanism of the crank mechanism of the same mold closing mechanism of expression.
Fig. 6 is the figure of the same collapsing length guiding mechanism of expression, (a) is side view, and the C-C that (b) is (a) is to looking sectional drawing.
Fig. 7 is the front elevation of preceding platen fixed position guiding mechanism of the hollow forming machine mold closing mechanism of the same embodiment of expression.
Fig. 8 is the figure of the same fixed position of expression guiding mechanism, (a) is side view, and the A-A that (b) is Fig. 3 is to looking sectional drawing.
Fig. 9 is the major part oblique view of fastener driving device of the hollow forming machine of the same embodiment of expression.
Figure 10 is the figure of motion time table of the hollow forming machine of the same embodiment of expression.
Figure 11 is the oblique view of the 2nd embodiment of expression hollow forming machine of the present invention.
Figure 12 is the figure of motion time table of the hollow forming machine of the same embodiment of expression.
Figure 13 is the major part front elevation of expression hollow forming machine in the past.
Below in conjunction with accompanying drawing, embodiment of the present invention are described.
Fig. 1～Fig. 9 is first kind of embodiment of the hollow forming machine of relevant the present invention, and symbol 1 is hollow forming machine among this figure, and P is a parison, and L is embossed marks device (pressing the mark device), and H is a withdrawing device.
As Fig. 1～shown in Figure 3, above-mentioned hollow forming machine 1 is provided with: squeeze into impulse pin 40,40 ' fastener driving device 4,4 ' in extruder 2, a pair of mold closing mechanism 3,2 ', a pair of mould on mold closing mechanism 3,3 ' 30,30 ', by above-mentioned mold closing mechanism 3,3 ' alternately conversion, the parison P clamping in addition that to extrude from above-mentioned extruder, and carry out qi of chong channel ascending adversely after utilizing above-mentioned fastener driving device 4,4 ' that impulse pin is squeezed into.
Above-mentioned extruder 2, its leading section is provided with crosshead 20, and extruder 20 can be extruded parison P downwards from crosshead 20.
Above-mentioned mold closing mechanism 3,3 ' and this mold closing mechanism 3,3 ' on mould 30,30 ' open and close direction in the same way, and on main basal base plate 5 to arrange to determining deviation.Be provided with the ball screw rod 50 that is driven by motor M 1 below main basal base plate 5, main basal base plate 5 is fixed on the ball nut 51 of ball screw rod 50 and can makes its axial (Y direction among Fig. 1) along ball journal 52 mobile.
The following describes above-mentioned mold closing mechanism 3,3 '.As Fig. 1～shown in Figure 3, except that connecting rod and platen be symmetrical arranged, its structure is basic identical.Therefore, in the following description, only mold closing mechanism 3 is explained.As for mold closing mechanism 3 ', in mold closing mechanism 3, add ' symbol, its explanation is omitted.
Above-mentioned mold closing mechanism 3 is provided with: as shown in Figure 3 and Figure 4, move freely before and after can doing on device body 31, the device body 31 and the connecting rod 32 of horizontal supporting, be located at preceding platen 33 and tail plank 34 on connecting rod 32 front and back ends, be opposite to before platen 33 and be located at before and after movable platen 35 on the above-mentioned connecting rod 32 that moves freely, in addition, platen 33 and movable table 35 mutual opposite sides are provided with one and can divide mould 36,37 before overhead.
The primary structure of said apparatus body 31 is made up of the framework 31a on the ball nut that is fixed on ball screw rod 6 of servo motor M2 driving.Above-mentioned connecting rod 32 can be done freely to move on the corner at framework 31a diagonal angle and with horizontal supporting.On said apparatus body 31, set up a crank mechanism 7 and motor M3, and motor M3 is used for transmitting driving force to the bent axle 70 of this crank mechanism 7.In addition, above-mentioned movable platen 35 and tail plank 34 are connected on the bent axle 71 of crank mechanism 7 by connecting rod 72,73.
As shown in Figure 4, the primary structure of above-mentioned crank mechanism 7 by above-mentioned bent axle 70, this bent axle 70 axially slightly on centres fixing cranking arm 71 form with the connecting rod 72 and 73 that is connected on 71 of cranking arm at this.The both ends of bent axle 70 are by pillow block fixing on the device body 31 74 spin supportings.In addition, above-mentioned servo motor M3 driving shaft is connected on the end of bent axle 70 by speed changer, and passes through the driving of servo motor M3, makes above-mentioned crank mechanism 7 actions.
Above-mentioned cranking arm 71 is provided with a lever 71a, and lever 71a is to 70 one-tenth 180 ℃ rotation symmetries of bent axle.Above-mentioned connecting rod 72,73 is connected on the lever 71a by attachment pegs 75,76 described later.When lever 71a and connecting rod 72,73 become straight line, above-mentionedly divide mould 36,37 to collide and produce given clamping pressure.
Shown in Fig. 5 and Fig. 6 (b), crank arm 71 and the above-mentioned attachment pegs 75,76 of connecting rod 72,73 in order to connection, it is bigger and from eccentric part 75a, the 76a of a both ends axle core core skew that its axial pars intermedia is provided with a comparable both ends external diameter, moreover leading section is connected with a gear 75b, 76b.Above-mentioned attachment pegs both ends are by above-mentioned curved arm lever rotating support, and above-mentioned eccentric part is inserted in (figure is expression not) in the above-mentioned connecting rod jack.
Shown in Fig. 5 and Fig. 6 (a), on (Fig. 6 (a) is the top) position below said gear 75b, the 76b of 71 sides that crank arm, operating axis 77 by supporting member 77a to horizontally rotate supporting.Axial pars intermedia at this operating axis 77 is connected with a worm screw 77b.On the other hand, bent axle 70 be provided with above-mentioned worm screw 77b meshed gears 70a and be fixed on this gear 70a's and with the worm gear 70b of above-mentioned worm screw 77b engagement.And this worm gear 70b can do relative rotation to bent axle 70.Aforesaid operations axle 77 is rotated, and by worm screw 77b, worm gear 70b, gear 70a and gear 75b, 76b, make attachment pegs 75,76 rotations, can change axle core distance from the axle core of bent axle 70 to eccentric part 75a, 75b, thereby adjust the collapsing length of crank mechanism 7, crank arm 71 and connecting rod 72,73 then be not subjected to the restriction of finishing die size and dimension, can linear extension.The 75a of these core shift portions, 76a, gear 75b, 76b, 70a, operating axis 77, worm screw 77b, worm gear 70b all constitute the collapsing length guiding mechanism of crank mechanism 7.
As shown in Figure 4, the front and back end portion of above-mentioned connecting rod 32 is provided with public bolt part 32a, 32b respectively, on public bolt part 32a, 32b, be equipped with described later before axle bush 33b, the 34b of platen 33 and tail plank 34.
Before platen 33, tail plank 34 and movable platen 35 be square tabular member and form by facing.Be equipped with patchhole 33a, 34a, the 35a that can insert above-mentioned connecting rod 32 respectively at each platen diagonal position edge.For making above-mentioned connecting rod 32 be in symmetric position, be equipped with above-mentioned preceding platen 33, tail plank 34 and above-mentioned movable platen 35 on the above-mentioned connecting rod 32 with above-mentioned mould 36,37 centers of dividing.
Be provided with the have the female spire corresponding axle bush 34b of (figure is expression) at the patchhole 33a of platen 33 and tail plank 34 and 34a, and these platens are fixed on all before and after the connecting rod on the assigned position of end with above-mentioned connecting rod 32 public spire 32a.Preceding platen 33 axle bush 33b front faces are connected with a belt pulley (with reference to Fig. 7).Be connected with a supporting fixture 34c, 35c with the device body 31 opposed faces of tail plank 34 and movable platen 35, this supporting fixture 34c is in order to support above-mentioned attachment pegs, to make the end of above-mentioned connecting rod 72,73 and 70 cores of above-mentioned bent axle keep same height.
Shown in Fig. 7 and Fig. 8 (a), be fixed in above-mentioned before rollback one non junction synchronous belt 81 on each belt pulley 80 of platen 33 axle bush 33b.The front face of preceding platen 33 almost center is provided with the forwards outstanding axle 82 of a rotation.On this axle 82, be connected with drive pulley 80 and worm gear 84.The front face of preceding platen 33 places lower position for making worm gear 84, and operating axis 85 is by supporting member, to horizontally rotate supporting.And the axial pars intermedia of this operating axis 85 be connected with one with above-mentioned worm gear 84 engaged worm 86.A counter 87 is equipped with in aforesaid operations axle 85 1 ends, with this counter 87 fixed position of preceding platen 33 is represented with amount of movement.There are these belt pulleys 80, synchronous belt 81, axle 82, drive pulley 83, worm gear 84, operating axis 85, worm screw 86 sum counters 87 all to constitute and will be somebody's turn to do preceding platen 33 fixable fixed position guiding mechanism 8 on a back position of the leading section of above-mentioned connecting rod 32.
As shown in Figure 9, one is installed with support plate 90,91 on above-mentioned preceding platen 33 and the movable platen 35,42 axles 93,93 that are provided with by 90,91 times quadrate parts of this support plate of above-mentioned fastener driving device, and by support plate 90,90a supporting.
The driving shaft of above-mentioned servo motor 42 is connected by the 1st joint portion of the 1st actuating strut 43a of decelerator 42a and above-mentioned elbow type mechanism 43.And the 2nd actuating strut 43b that makes above-mentioned the 1st actuating strut 43a and combine with it reaches 42 driving and bends and stretches with above-mentioned servo electricity.
Above-mentioned impulse pin 40 positions and fixes on impulse pin pedestal 44, this impulse pin pedestal 44 is fixed on the upper end of the 2nd actuating strut 43b of above-mentioned elbow type mechanism 43, makes can substantially vertically be blown into from the above-mentioned bottom of mould 36,37 of dividing by compressor (not shown) compressed and supplied air.Guide protrusions 44a is arranged on the side of above-mentioned impulse pin pedestal 44 with the protrusion state.This guide protrusions 44a moves up and down along the gathering sill 45a that is arranged on the guide plate 45 on the said base plate 41, and above-mentioned impulse pin 40 is moved up and down with very high precision.
Moreover, the control part (not shown) of dress programmer in above-mentioned hollow forming machine 1 has, pressurizing unit 2, mold closing mechanism 3,3 ' and device for blowing 4, a succession of action of 4 ' are controlled by the control flow (referring to the action time figure of Figure 10) of this programmer.And, be input in the above-mentioned control part by encoder from the output of above-mentioned each servo motor, can control the position of impulse pin 40 like this.
The action of above-mentioned hollow forming machine 1 is described according to Figure 10 below.
At first, according to conditions such as the size that can divide mould 36,37, shape, winding-up (air blowing) pressure, utilize above-mentioned location guiding mechanism 8 to adjust the fixed position of front platen 33 on the leading section that connects (being) bar 32, make crank arm 71 and connecting rod 72,73 constitute on the position of straight lines, produce necessary mold clamping force.Perhaps, utilize the collapsing length guiding mechanism of above-mentioned crank mechanism 7 to adjust the position of movable mold 35 and tail plank 34.And the power of squeezing into that fastener driving device produced can be calculated according to the angle of elbow type mechanism 43 with to the elbow type mechanism 43 used thrust that stretches, set the moment of the drawing process and the above-mentioned servo motor 42 of above-mentioned elbow type mechanism 43 according to this reckoning.In addition, the centralized positioning method of impulse pin 40 is: eliminate the stationary state of impulse pin 40 on impulse pin pedestal 40, cut off the binding between the two, impulse pin 40 can be moved freely on impulse pin pedestal 44.Then under this state, squeeze into action cautiously carefully, check the situation of rocking of confirming impulse pin 40 on one side, divided mould 36,37 to this impulse pin 40 docks on one side, finally under shaping dies 30 and impulse pin center reach consistent state, make impulse pin 40 on impulse pin pedestal 44, position and fix.Fastener driving device 4 ' also with fastener driving device 4 the same settings.And, squeeze into height with such adjustment, finish as adjusting.Centralized positioning is very simple, carries out fixed-site under the state of squeezing into of reality, so the reliability height, cost is low, operates also very easy and rapid.
Then, above-mentioned crank mechanism 7 is set, made link rod 72,73 with respect to 71 the arm 71a of cranking arm and be flexion, and drive above-mentioned CD-ROM drive motor M1, as shown in Figure 3, be set on the position in the cavity that parison P is hung down into to divide mould 36,37, finish initial setting work.
Then, parison P is hung continuously downwards from the crosshead 20 of above-mentioned pressurizing unit 2.And M2 drives to CD-ROM drive motor, under the state that can divide mould 36,37 to open, make mold closing mechanism 3 to the left (left side of the directions X of Fig. 1) move.
And when parison P was extruded to specific length, servo motor M3 drove, and the driving force of servo motor M3 is passed on the crank axle 70 after speed changer slows down.Then, be fixed on cranking arm on this bent axle 70 and 71 also rotate, extend laterally from the center of bent axle 70 respectively by coupling pin 75, the 76-5 link rod 72,73 that 71 arm 71a connects mutually of cranking arm with the rotation of this bent axle 70.Along with the elongation of this link rod 72,73, this link rod 72,73 expands tail plank 34 and movable mold 35 by supporting fixture 34c, 35c forwards, backwards.
Then, movable mold 35 is approaching to parison P along connecting rod 32, and along with preceding platen 33 moves to tail plank 34 rears, connecting rod 32 itself rearward moves, and therefore, each can divide mould 36,37 approaching to parison P.And, last, can divide the divisional plane of mould 36,37 to overlap mutually, parison P is carried out clamping.Under the situation of making embossed flag, when this can divide mould 36,37 to carry out closed action, embossed flag device L is inserted.
Then, when matched moulds finishes, utilize parison cutting knife (not shown) to begin to cut parison P.
Then, when parison P was cut end, servo motor M2 drove, to apparatus main body 31 fixedly the ball nut 60 of usefulness move horizontally.Thereupon, mold closing mechanism 3 under the above-mentioned matched moulds state that divides mould 36,37 to the right (right side of the directions X among Fig. 1) move, make and can divide mould 36,37 to leave parison P, this parison P is subjected to the extruding of the crosshead 20 of above-mentioned pressurizing unit 2 usually continuously.
Behind these mold closing mechanism 3 mobile ends, said motor M1 drives, and simultaneously, main basal base plate 5 (upside of Y direction among Fig. 1) to the inside moves, and stops after moving to assigned position, switches with mold closing mechanism 3 '.
On the other hand, when parison P cuts, fastener driving device 4 begins action, driving along with above-mentioned CD-ROM drive motor 42, then, each actuating strut 43a, 43b of above-mentioned elbow type mechanism 43 extend, and the guide protrusions 44a of the impulse pin pedestal of being installed on its upper end 44 is along the upwards rise of gathering sill 45a of guide plate 45.So impulse pin 40 approaches to be in the divided mould 36,37 of matched moulds state.
Then, impulse pin 40 inserts the insertion mouth of the divided mould 36,37 of matched moulds from the bottom, and the ejection pressure-air carries out blow molding.In this hollow forming machine 1, fastener driving device 4 is supported by support plate 90 and 91, and this support plate 90 and 91 constitutes an integral body with preceding platen 33 and movable mold 35 respectively.A succession of action of fastener driving device 4 is before this all carried out in the required moving process of the avoidance of mold closing mechanism 3, so, shortened whole forming period greatly.
When utilizing above-mentioned fastener driving device 4 to carry out blowing (air blowing), owing to utilize impulse pin 40 to come the oral area internal diameter of formed product is formed, so, do not need to carry out afterwards internal diameter processing basically.And as mentioned above, the insertion position of impulse pin 40 can utilize the flexible etc. of elbow type mechanism 43 to be used for adjusting, and can adjust the fin of the oral area of formed product.
When utilizing this fastener driving device 4 to carry out blowing, above-mentioned mold closing mechanism 3 ' under the state of opened mould 30 ' to the left (left side of directions X among Fig. 1) move, after the below that mold closing mechanism 3 ' stops at the crosshead 20 of above-mentioned fastener driving device 2 stops, the same with above-mentioned mold closing mechanism 3, utilize mould 30 ' that parison P is carried out clamping, utilize the parison cutting knife to cut and squeeze into impulse pin 40 again, beginning blowing.Then, this mold closing mechanism 3 ' to the right (right side of directions X among Fig. 1) move.When this moves in end, above-mentioned main basal base plate 5 moves to front side (downside of Y direction among Fig. 1), then, withdrawing device H under the state of having opened this dop to the left (left side of Y direction among Fig. 1) advance, begin to prepare to take out the formed product that is shaped by above-mentioned mold closing mechanism 3.
Above-mentioned main basal base plate 5 move finish and above-mentioned withdrawing device H carry out take out to prepare after, the blowing in the fastener driving device 4 of above-mentioned mold closing mechanism 3, exhaust finishes, above-mentioned crank mechanism 7 beginning contractive action can divide mould 36,37 beginning opening actions.
In addition, the jump action of the fastener driving device of each mold closing mechanism among Figure 10 (Figure 12 also be the same) is meant: when being recessed shape in the bottom of formed product (for example as home-use Detergent bottle, upwards fall at the bottom of mostly being bottle), in the exhaust process of blowing after finishing or after finishing, impact (air blowing) pin and retreat from the insertion position, its amount of retreating equals the size of bottle bottom recess, in order to avoid when opening mould, the recess at the bottle end exempts to carry out by force the demoulding, causes damage or distortion.Utilize this jump action, when opening mould formed product can impulse pin axially on move freely, can prevent damage and distortion.So, be not when making progress recessed shape, can omit this jump action in the bottom of formed product.
Then, after can dividing mould 36,37 fully to open, impulse pin 40 carries out crooked effect at above-mentioned elbow type mechanism 43 and is moved on the position that the dop to withdrawing device H transmits, and this dop is being clamped by the formed product of impulse pin 40 supportings.And above-mentioned elbow type mechanism 43 carries out bending, and impulse pin 40 and formed product are separated, and afterwards, the dop of withdrawing device H retreats, and after taking out formed product, the whole forming period of being undertaken by mold closing mechanism 3 promptly comes to an end.
After the whole forming period of being undertaken by mold closing mechanism 3 finishes, said apparatus main body 31 and fastener driving device 4 return original state respectively, and (apparatus main body 31 moves to the below of pressurizing unit 2, the elbow type mechanism 43 of fastener driving device 4 is in case of bending), begin new forming period once more.In addition, the beginning of this forming period also can retreat simultaneously with the dop of withdrawing device H and carry out.
Like this, begin to carry out the air blowing of new forming period by the fastener driving device 4 of mold closing mechanism 3, then, main basal base plate 5 (upside of Y direction among Fig. 1) once more to the inside moves.And, finish air blowing, deairing step by above-mentioned mold closing mechanism 3 ' after, the same with the removing method of above-mentioned mold closing mechanism 3, by above-mentioned withdrawing device H formed product is taken out, so the whole forming period of being undertaken by mold closing mechanism 3 ' promptly comes to an end.
By carrying out above action repeatedly, carry out product shaping continuously.
As mentioned above, in the hollow forming machine 1 of the present embodiment, above-mentioned a pair of mold closing mechanism 3,3 ' is arranged side by side on mould 30 in this mold closing mechanism 3,3 ', 30 ' the switching direction, so, for the used withdrawing device H of product that takes out after being shaped also can only be provided with one in a side.Therefore, unified formed product extraction system can be formed, and the required area of equipment installation can be reduced significantly.
Moreover above-mentioned fastener driving device 4,4 ' is supported by the platen in the above-mentioned mold closing mechanism 3,3 ', and can from above-mentioned mould 30,30 ' below above-mentioned impulse pin 40,40 ' is squeezed into.So, on horizontal layout, do not influence for adapting to parison at all and form change and wait and set up pressurizing unit, and (referring to Figure 11 2 '), and dispose the embossed flag device for making embossed flag.
In addition, fastener driving device 4,4 ' with preceding platen 33,33 ' and movable mold 35,35 ' constitute an integral body, fastener driving device 4, a succession of action of 4 ' are to carry out in mold closing mechanism 3,3 ' avoidance moving process, so, can shorten forming period greatly.
Moreover, fastener driving device 4,4 ' with preceding platen 33,33 ' and movable mold 35,35 ' constitute an integral body, the centering precision in the time of can improving impulse pin 40,40 ' and squeeze into.
Moreover, before platen 33,33 ' and movable mold 35,35 ', form certain relation with fastener driving device 4,4 ' base plate 41,41 ', so, when impulse pin 40,40 ' is squeezed into, platen 33,33 ', 35,35 ' and connecting rod 32,32 ' go up added load, owing to support plate 90,90 ', 91,91 ' in, act on, the relation of reaction force and being cancelled, so, reduce the load when squeezing into, can correspondingly reduce the volume of device.
In addition, above-mentioned hollow forming machine 1 has adopted crank mechanism 7,7 ' making can divide in mould 36,36 ', 37, the 37 ' mold closing mechanism that opens and closes 3,3 ', so, do not need often to add oil pressure as oil pressure action bucket cylinder mechanism.Therefore, compare, can reduce operating cost, simultaneously, can not produce the variety of issue that occurs by in the pressure device use with the method in past.
Moreover, owing to the moment load that matched moulds is required is also smaller, so, can adopt the little miniature motor of moment as servo motor M3, M3 ', can correspondingly reduce the volume of device.
In addition, connecting rod 32,32 ' is with respect to dividing mould 36,37 and 36 ', 37 ' center to be the diagonal angle configuration status, can be to dividing mould 36,37 and 36 ', 37 ' interface to apply the mold clamping force of uniformity, so can produce carrot-free good hollow products.And, installed and can divide mould 36,37 and 36 ', 37 ' preceding platen 33,33 ' and movable mold 35,35 ', can reduce volume, therefore weight reduction, is seen on the whole, equipment itself can reduce volume, and weight reduction also can be saved the energy, saves the space.
Moreover, the fixed position guiding mechanism of platen and the collapsing length guiding mechanism of crank mechanism before utilizing, make under crank arm and the connecting rod elongation state in alignment, can make and to divide mould to carry out matched moulds, so, no matter the size of finishing die, shape how, can be used uniform mold clamping force, stably form.
Figure 11 represents to adopt the 2nd embodiment of hollow forming machine of the present invention.Among the figure, symbol 1 ' is represented hollow forming machine; 2 ' is expressed as the pressurizing unit that adapts to the change of parison composition and set up.In addition, the hollow forming machine 1 of the present embodiment, except travel mechanism's difference of the avoidance usefulness of mold closing mechanism, all the other structures all hollow forming machine 1 with above-mentioned the 1st embodiment are identical.So, in the following description, only this travel mechanism being described, other parts adopt the symbol identical with the hollow forming machine 1 of above-mentioned the 1st example, and its explanation is omitted.
As shown in figure 11, in above-mentioned hollow forming machine 1, track R, R ' are laid on the main basal base plate 5 along directions X, and simultaneously, ball screw rod 10 is arranged on the centre position of this track R, R ', and parallel with track R, R ', and M4 drives by motor.Be provided with auxiliary section 12 on the ball nut 11 of this ball screw rod 10, this auxiliary section 12 has the recess that carries out opening on the Y direction.
On the other hand, each mold closing mechanism 3,3 ' apparatus main body 31,31 ' can be gone up walking at above-mentioned each track R, R '.Be provided with the fitting pin (not shown) in its bottom, this fitting pin is corresponding with the auxiliary section 12 of above-mentioned ball nut 11.
And, when above-mentioned main basal base plate 5 to the inside or preceding (outside) when side (the Y direction among Figure 11) is mobile, said apparatus main body 31, some fitting pins of 31 ' just combine with above-mentioned auxiliary section 12, and be locked, at this moment, said motor M4 is driven, this apparatus main body 31 or 31 ' is moved to directions X.
The action of the hollow forming machine 1 ' of the present embodiment can be carried out according to motion time table shown in Figure 12.This motion time table is except that having increased the combination of above-mentioned cooperating recesses 12 and fitting pin, identical with the motion time table (referring to Figure 10) of hollow forming machine 1.
The hollow forming machine 1 ' of this example, as mentioned above, the travel mechanism of mold closing mechanism 3,3 ' avoidance usefulness only depends on motor M4 to drive and can move, so, the effect in the hollow forming machine 1 in having above-mentioned the 1st example, can also further reduce the volume of device.
Moreover, adopt hollow forming machine of the present invention to be not limited in the hollow forming machine 1,1 ' of above-mentioned embodiment, can also in being no more than the scope of purpose of the present invention, suitably change its size, shape etc.
For example, in the hollow forming machine of above-mentioned each embodiment, make the in the wrong secondary action of the elbow type mechanism that above-mentioned impulse pin moves up and down, rely on ball screw rod to carry out by servo motor driven.But the mechanism that elbow type mechanism is bent and stretched also can adopt other forms of mechanisms such as belt mechanism, pinion and rack.
Moreover, in the hollow forming machine of above-mentioned each embodiment, fastener driving device by on platen before being arranged on and the movable mold and the support plate that forms an integral body support, still, also can directly support by the fastener driving device connecting rod.
In addition, the hollow forming machine of above-mentioned each embodiment adopts said fixing position adjusting mechanism and collapsing length guiding mechanism in each mold closing mechanism.But, also can only adopt a certain mechanism wherein.And, under the situation of not changing finishing die, also not necessarily to adopt fixed position guiding mechanism or collapsing length guiding mechanism.
Moreover, adopt the drive source of the crank mechanism in the hollow forming machine of the present invention, especially wish as the hollow forming machine of above-mentioned example, to adopt electro-motor, still, also can adopt the drive source that drives by fuel such as kerosene, gasoline, heavy oil.
In adopting hollow forming machine of the present invention, can divide the switching mechanism of shaping mould, especially the crank mechanism in the hollow forming machine of the above-mentioned embodiment of hope employing still, can divide the switching mechanism of shaping mould also can adopt other mechanisms.
If adopt hollow forming machine of the present invention, then can obtain following effect.
If adopt hollow forming machine claimed in claim 1, then arrange abreast owing to above-mentioned a pair of mold closing mechanism Opening and closing on the identical direction of direction with the mould of this mold closing mechanism, so, can be only at this to mold closing mechanism In a side withdrawing device is set. Therefore, can form unified formed product extraction system, and, with mistake Go to compare, can reduce significantly equipment required area is installed.
If adopt hollow forming machine claimed in claim 2, then except can obtaining above-mentioned effect, all right Obtain such effect, namely from horizontal layout, can not affect for adapting to parison at all and form change and wait and increase If pressurizing unit, and dispose the embossed flag device for making embossed flag.
Claims (2)
1, a kind of hollow forming machine, comprise: extruder (2), a pair of mold closing mechanism (3,3 '), with impulse pin (40,40 ') squeeze in mold closing mechanism (3,3 ') Nei mould (30,30 ') Nei fastener driving device (4,4 '), by above-mentioned mold closing mechanism (3,3 ') alternately conversion, the parison P clamping in addition that to extrude from above-mentioned extruder (2), and utilize above-mentioned fastener driving device (4,4 ') with impulse pin (40,40 ') squeezed into and be it is characterized in that mold closing mechanism (3,3 ') with this mold closing mechanism (3,3 ') mould (30 on, 30 ') open and close direction for arranging in the same way.
2, the hollow forming machine of putting down in writing as claim 1, it is characterized in that described fastener driving device (4,4 ') by connecting rod or platen plate supporting on the described mold closing mechanism (3,3 '), and described impulse pin (40,40 ') can be squeezed into from described mould (30,30 ') below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97100418A CN1055890C (en) | 1997-01-24 | 1997-01-24 | Hollow forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97100418A CN1055890C (en) | 1997-01-24 | 1997-01-24 | Hollow forming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188709A CN1188709A (en) | 1998-07-29 |
| CN1055890C true CN1055890C (en) | 2000-08-30 |
Family
ID=5165036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97100418A Expired - Fee Related CN1055890C (en) | 1997-01-24 | 1997-01-24 | Hollow forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055890C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992540B (en) * | 2009-08-21 | 2013-01-09 | 日晃机械工业有限公司 | All electric driven blow molding machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5967020A (en) * | 1982-10-12 | 1984-04-16 | Sumitomo Heavy Ind Ltd | Clamping device for split metal molds for injection blow or injection stretching blow molding |
| JPS6134846A (en) * | 1984-07-27 | 1986-02-19 | Hitachi Ltd | Fluorescent lamp |
-
1997
- 1997-01-24 CN CN97100418A patent/CN1055890C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5967020A (en) * | 1982-10-12 | 1984-04-16 | Sumitomo Heavy Ind Ltd | Clamping device for split metal molds for injection blow or injection stretching blow molding |
| JPS6134846A (en) * | 1984-07-27 | 1986-02-19 | Hitachi Ltd | Fluorescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1188709A (en) | 1998-07-29 |
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