CN101683760A

CN101683760A - Pipe advancing and bottle pushing mechanism for plastic drawing and blowing machine

Info

Publication number: CN101683760A
Application number: CN200810121318A
Authority: CN
Inventors: 汪祥建
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-25
Filing date: 2008-09-25
Publication date: 2010-03-31
Anticipated expiration: 2028-09-25
Also published as: CN101683760B

Abstract

The invention provides a pipe advancing and bottle pushing mechanism for a plastic drawing and blowing machine, comprising: templates and a mold opening/closing mechanism installed in a frame, and a drawing mechanism, wherein the templates comprises a front template, a medium template and a back template, a mold is installed in the front template and the medium template respectively, the mold is arranged with a mold cavity and a mold orifice, the drawing mechanism comprises a drawing cylinder and a seal cylinder, the drawing cylinder drives a connecting board, the connecting board fixes a drawing rod, the drawing rod runs through the seal cylinder, the seal cylinder is installed below a fixed plate of the seal cylinder, the lower of the piston of the seal cylinder is connected with a sealblowing connector, the blowing connector is arranged with a gas hole, the gas hole is connected with a bubble tube, a seal pressing ring is installed at the lower of the seal blow gas connector, and the seal pressing ring is connected with the plastic bottle tube. The drawing rods is three or four, and the relative seal cylinders is three or four, the mold orifice is a flat mouth with smooth innerbore, the mold enters the bottle tube in mold closing state, the upper of the flat mouth is connected with a baffle ring of the bottle tube, and the bottle pushing mechanism is installed on the medium template.

Description

The inlet pipe of plastic draw-blow machine and bottle pushing mechanism

Technical field

The present invention relates to plastic containers stretch blow machine, particularly relate to the inlet pipe and the bottle pushing mechanism of plastic draw-blow machine, belong to plastics machinery and make the field.

Background technology

Be used to process all kinds of hollow plastic containers, as mineral water bottle, oil bottle, the plastic molding equipment of bottle for cosmetics has one-step method or two-step method, two-step method equipment comprises the injection machine of processing bottle pipe, the heater and the plastic draw-blow machine of twice heating of bottle pipe, on the heater the bottle pipe fetch and deliver have in the plastic draw-blow machine manual or motor-driven, when prior art is is manually fetched and delivered the bottle pipe, need be pressed into the bottle mouth of pipe in the groove of mold cavity oral area, so must transfer the bottle pipe in die opening state, but the operator has only two hands, a hand is taken a bottle pipe, mostly be most two at every turn, therefore, plastic bottle one mould of processing also only is two, and promptly so-called one goes out two, can't process one go out three and more than, inefficiency, the idea that proposes is three of mould processing now, four plastic bottles, promptly one goes out three, one goes out four, and still adopting the manual bottle pipe of fetching and delivering, prior art can't realize; By hand the bottle pipe being pressed into mould on the other hand needs accurately, locatees fast, if the bottle pipe is not pressed onto the position, the bottle pipe can come off, and causes sky to blow phenomenon; Owing to be to transfer bottle pipe, so the operator must be quite careful, in order to avoid hurt hand during matched moulds in die opening state.

Summary of the invention

The objective of the invention is in order to overcome the shortcoming that prior art exists, provide a kind of mould under the matched moulds state, manually to put the bottle pipe, be applicable to three, four bottles of mould processing, and adopt automatic bottle pushing mechanism to take off bottle, high efficiency, handling safety reduces labour intensity, improves the inlet pipe and the bottle pushing mechanism of the plastic draw-blow machine of speed.

The inlet pipe of plastic draw-blow machine of the present invention and the technical scheme of bottle pushing mechanism are: comprise frame; template and clasp mould mechanism are installed in the frame; drawing mechanism is installed on frame; described template comprises front template and middle template and the rear pattern plate that is linked to each other by guide rod; one slit bamboo or chopped wood mould is installed in front template and middle template separately; be shaped on the die cavity that expands in every slit bamboo or chopped wood mould and receive little die orifice; there is bed die the mould below; described drawing mechanism comprises draft cylinder and sealing cylinder; draft cylinder drives connecting plate; connecting plate is the stretching bar fixedly; the stretching bar passes sealing cylinder; described sealing cylinder comprises cylinder body; upper cylinder cover and following cylinder cap; sealing cylinder is installed under the sealing cylinder fixed head; the air blowing joint is sealed in following connection of piston in the sealing cylinder; seal in the air blowing joint and be shaped on gas hole; gas hole connects gas blow pipe; seal the bottom of air blowing joint the sealing trim ring is installed; the sealing trim ring contacts with plastic bottle-pipe; it is characterized in that described stretching bar is 3 or 4; corresponding sealing cylinder is 3 or 4; described die orifice is the smooth flat mouth of endoporus; mould advances the bottle pipe under the matched moulds state; flat mouthful top baffle ring with the bottle pipe contacts, and on middle template bottle pushing mechanism is installed.

The inlet pipe of plastic draw-blow machine of the present invention and bottle pushing mechanism, the stretching bar is 3 or 4, corresponding sealing cylinder also is 3 or 4, be applicable to three of mould processing, four bottles, high efficiency is manually put the bottle pipe under the matched moulds state, speed is fast, accurate positioning, but the bottle pipe is put in the mould, the screw thread mouth and the baffle ring of bottle pipe can rest on the die orifice, so making, the die orifice of mould do not have screw thread mouth, do not have groove,, be equivalent to prior art and remove the part that screw thread and baffle ring groove are arranged at die cavity top for the smooth flat mouth of endoporus, the flat mouth of mould is holding in the palm the baffle ring (neck of plastic bottle all is shaped on baffle ring) of bottle pipe, the thread head of bottle pipe part is not pressed in the mould during work, but is exposed, therefore, in practical operation, have only when two slit bamboo or chopped wood mould matched moulds, the operator is as long as insert die orifice with handgrip bottle pipe, and bottle is managed automatic accurate location, available very fast speed is put the bottle pipe, handling safety, quality assurance, and reduce labour intensity.

The inlet pipe of plastic draw-blow machine of the present invention and bottle pushing mechanism, install on the template during its described bottle pushing mechanism comprises and push away a bottle cylinder, push away bottle cylinder and connect bottle-pushing plate, bottle-pushing plate contacts with the oral area of plastic bottle, after the die sinking, bottle cylinder that pushes away on the middle template drives a bottle-pushing plate, because the screw thread oral area of plastic bottle is exposed at the mould outside all the time when moulding, therefore bottle-pushing plate directly pushes away the screw thread oral area of plastic bottle, make plastic bottle break away from mould and export automatically, simple in structure, it is fast to take off bottle, do not need manually to get bottle, reduce labour intensity.Its described bottle cylinder that pushes away is two, adopts two to push away a bottle cylinder drive bottle-pushing plate, guarantees that bottle-pushing plate is stressed steadily.Be shaped on gas hole in the mould in its described being installed on the template, gas hole connects gas blow pipe, for large-scale plastic bottle, only depend on bottle-pushing plate to promote the oral area of plastic bottle during the demoulding, strength is shaped on gas hole not enough in mould, gas hole is assisted bottle blowing, make on the plastic bottle lower stress steady, be easy to the demoulding.Install in its described die orifice and insert, the top baffle ring of inserting with the bottle pipe contacts, and the interchangeable that has been bad of inserting has been arranged, and is holding in the palm the bottle pipe by inserting, and has inserted interchangeable bad, need not change the monoblock mould; The 2nd, the bore of inserting according to the size adjustment of bottle pipe.Be shaped on annular positioning groove in its described inserting, annular positioning groove matches with the baffle ring of bottle pipe, and the bottle pipe is placed steadily, and sealing effect is good.On the template Connection Block is installed during it is described, mounting and fixing bracket on the Connection Block, the sealing cylinder fixed head is installed on the fixed support.Be shaped on long emissions groove in the described sealing cylinder fixed head, fixed support passes long emissions groove and is fastened by nut, the thickness of the mould of different sizes also is different, in the sealing cylinder fixed head, be shaped on long emissions groove, fixed support can move the forward and backward position of regulating the sealing cylinder fixed head in long emissions groove, make Stretch and Blow Mechanism corresponding with die orifice.On the draft cylinder fixed head that its described draft cylinder is installed, the draft cylinder fixed head is fixed on the sealing cylinder fixed head through guide post, and connecting plate has had the upper and lower slip of guide post steady along the upper and lower slip of guide post.Its described connecting plate can comprise upper junction plate and lower connecting plate composition, and upper and lower connecting plate is connected by pole, and upper junction plate connects the piston rod of draft cylinder, and lower connecting plate is the stretching bar fixedly, is specially adapted to the Stretch and Blow Mechanism of 3 stretching bars.

Description of drawings

Fig. 1 is the inlet pipe of stretch blow engine room pipe of the present invention and the structural representation of bottle pushing mechanism;

Fig. 2 is the structural representation of stretch blow machine plastic bottle-pipe mould of the present invention;

Fig. 3 installs in the die orifice of the present invention to insert, the top baffle ring of inserting with bottle pipe schematic diagram that contacts;

Fig. 4 be stretch blow machine of the present invention the bottle pipe mold at the die opening state schematic diagram;

Fig. 5 is the sealing trim ring of the present invention schematic diagram that matches with plastic bottle-pipe.

The specific embodiment

The invention discloses a kind of inlet pipe and bottle pushing mechanism of stretch blow engine room pipe; as Fig. 1-shown in Figure 5; comprise frame; template and clasp mould mechanism are installed in the frame; drawing mechanism is installed on frame; described template comprises by guide rod 51; 52; 53; 54 front template 13 and middle template 12 and the rear pattern plates 11 that link to each other; one slit bamboo or chopped wood mould 7 is installed in front template 13 and middle template 12 separately; be shaped on the die cavity 71 that expands in every slit bamboo or chopped wood mould and receive little die orifice 72; there is bed die 16 mould 7 belows; described drawing mechanism comprises draft cylinder and sealing cylinder; draft cylinder drives connecting plate; connecting plate is stretching bar 1 fixedly; the stretching bar passes sealing cylinder; described sealing cylinder comprises cylinder body 2; upper cylinder cover 41 and following cylinder cap 42; sealing cylinder is installed in the sealing cylinder fixed head 57 times; air blowing joint 6 is sealed in piston 3 following connections in the sealing cylinder; seal and be shaped on gas hole 8 in the air blowing joint 6; gas hole connects gas blow pipe 5; seal the bottom of air blowing joint 6 sealing trim ring 4 is installed; the sealing trim ring contacts with plastic bottle-pipe; it is characterized in that described stretching bar is 3 or 4; corresponding sealing cylinder is 3 or 4; described die orifice 72 is the smooth flat mouth of endoporus; mould advances the bottle pipe under the matched moulds state, flat mouthful top baffle ring 91 with bottle pipe 9 contacts, and on middle template 12 bottle pushing mechanism is installed.The stretching bar 1 of this programme is 3 or 4, corresponding sealing cylinder also is 3 or 4, be applicable to three of mould processing, four bottles, high efficiency is manually put the bottle pipe under the matched moulds state, speed is fast, accurate positioning, but the bottle pipe is put in the mould, and the screw thread mouth and the baffle ring of bottle pipe can rest on the die orifice, do not have screw thread mouth so the die orifice of mould is made, there is not groove, for the smooth flat mouth of endoporus, be equivalent to prior art and remove the part that screw thread and baffle ring groove are arranged at die cavity top, mould 7 flat mouths are holding in the palm the baffle rings 91 (neck of plastic bottle all is shaped on baffle ring) of bottle pipe 9, the sealing trim ring 4 be pressed in baffle ring 91 above, the thread head of bottle pipe part is not pressed in the mould during work, but is exposed, therefore, in practical operation, have only when two slit bamboo or chopped wood mould matched moulds, the operator is as long as insert die orifice with handgrip bottle pipe, and bottle is managed automatic accurate location, available very fast speed is put the bottle pipe, handling safety, quality assurance, and reduce labour intensity.Install on the template 12 during its described bottle pushing mechanism comprises and push away bottle cylinder 25, push away bottle cylinder 25 and connect bottle-pushing plate 26, bottle-pushing plate 26 contacts with the oral area of plastic bottle, after the die sinking, bottle cylinder 25 that pushes away on the middle template 12 drives bottle-pushing plates 26, because the screw thread oral area of plastic bottle is exposed at the mould outside all the time when moulding, so bottle-pushing plate 26 directly pushes away the screw thread oral area of plastic bottle, makes plastic bottle break away from mould and exports automatically, simple in structure, it is fast to take off bottle, does not need manually to get bottle, reduces labour intensity.Its described bottle cylinder 25 that pushes away is two, adopts two to push away a bottle cylinder drive bottle-pushing plate, guarantees that bottle-pushing plate is stressed steadily.Be shaped on gas hole 19 in the mould 7 in its described being installed on the template, gas hole connects gas blow pipe 17, for large-scale plastic bottle, only depend on bottle-pushing plate to promote the oral area of plastic bottle during the demoulding, strength is shaped on gas hole not enough in mould, gas hole is assisted bottle blowing, make on the plastic bottle lower stress steady, be easy to the demoulding.Install in its described die orifice 72 and insert 15,15 the top baffle ring 91 with bottle pipe 9 inserted contacts, and is holding in the palm the bottle pipe by inserting, and the interchangeable that has been bad of inserting has been arranged, and is asking bottle to manage by inserting, and has inserted interchangeable bad, need not change the monoblock mould; The 2nd, the bore of inserting according to the size adjustment of bottle pipe.It is described inserts and is shaped on annular positioning groove 18 in 15, and annular positioning groove 18 matches with the baffle ring 91 of bottle pipe, and the bottle pipe is placed steadily, and sealing effect is good.Connection Block 55 is installed on the template 12 during it is described, and mounting and fixing bracket 56 on the Connection Block, and sealing cylinder fixed head 57 is installed on the fixed support 56.Be shaped on long emissions groove 61 in the described sealing cylinder fixed head 57, fixed support 56 passes long emissions groove 61 and is fastened by nut 62, the thickness of the mould of different sizes also is different, in sealing cylinder is fixing, be shaped on long emissions groove, fixed support can move the forward and backward position of regulating the sealing cylinder fixed head in long emissions groove, make Stretch and Blow Mechanism corresponding with die orifice.On the draft cylinder fixed head 63 that its described draft cylinder 60 is installed, draft cylinder fixed head 63 is fixed on the sealing cylinder fixed head 57 through guide post 58, and connecting plate has had the upper and lower slip of guide post steady along guide post 58 upper and lower slips.Its described connecting plate can comprise upper junction plate 59 and lower connecting plate 64 compositions, upper and lower connecting

plate

59,64 is connected by pole 65, upper junction plate 59 connects the piston rod 66 of draft cylinder, and lower connecting plate 64 is stretching bar 1 fixedly, is specially adapted to the Stretch and Blow Mechanism of 3 stretching bars.

Claims

1; the inlet pipe of plastic draw-blow machine and bottle pushing mechanism; comprise frame; template and clasp mould mechanism are installed in the frame; drawing mechanism is installed on frame; described template comprises front template (13) and middle template (12) and the rear pattern plate (11) that is linked to each other by guide rod; one slit bamboo or chopped wood mould (7) is installed in front template (13) and middle template (12) separately; be shaped on the die cavity (71) that expands in every slit bamboo or chopped wood mould and receive little die orifice (72); there is bed die (16) mould (7) below; described drawing mechanism comprises draft cylinder and sealing cylinder; draft cylinder drives connecting plate; connecting plate is stretching bar (1) fixedly; the stretching bar passes sealing cylinder; described sealing cylinder comprises cylinder body (2); upper cylinder cover (41) and following cylinder cap (42); sealing cylinder is installed under the sealing cylinder fixed head (57); air blowing joint (6) is sealed in following connection of piston in the sealing cylinder (3); seal and be shaped on gas hole (8) in the air blowing joint (6); gas hole connects gas blow pipe (5); seal the bottom of air blowing joint (6) sealing trim ring (4) is installed; the sealing trim ring contacts with plastic bottle-pipe; it is characterized in that described stretching bar is 3 or 4; corresponding sealing cylinder is 3 or 4; described die orifice (72) is the smooth flat mouth of endoporus; mould advances the bottle pipe under the matched moulds state; flat mouthful top baffle ring (91) with bottle pipe (9) contacts, and goes up in middle template (12) bottle pushing mechanism is installed.

2, the inlet pipe of plastic draw-blow machine as claimed in claim 1 and bottle pushing mechanism, it is characterized in that described bottle pushing mechanism comprises that middle template (12) goes up installation and pushes away a bottle cylinder (25), push away a bottle cylinder (25) and connect bottle-pushing plate (26), bottle-pushing plate (26) contacts with the oral area of plastic bottle.

3, the inlet pipe of plastic draw-blow machine as claimed in claim 2 and bottle pushing mechanism is characterized in that the described bottle cylinder (25) that pushes away is two.

4, the inlet pipe of plastic draw-blow machine as claimed in claim 1 and bottle pushing mechanism is characterized in that being shaped on gas hole (19) in the mould (7) on the template in described being installed in, and gas hole connects gas blow pipe (17).

5, the inlet pipe of plastic draw-blow machine as claimed in claim 1 and bottle pushing mechanism is characterized in that installing in the described die orifice (72) and insert (15), and the top of (15) of inserting contacts with the baffle ring (91) of bottle pipe (9).

6, the inlet pipe of plastic draw-blow machine as claimed in claim 5 and bottle pushing mechanism is characterized in that being shaped in described the inserting (15) annular positioning groove (18), and annular positioning groove (18) matches with the baffle ring (91) of bottle pipe.

7, the inlet pipe of plastic draw-blow machine as claimed in claim 1 and bottle pushing mechanism, it is characterized in that described middle template (12) goes up installation Connection Block (55), mounting and fixing bracket on the Connection Block (56), sealing cylinder fixed head (57) is installed on the fixed support (56).

8, as the inlet pipe and the bottle pushing mechanism of claim 1 or 7 described plastic draw-blow machines, it is characterized in that being shaped in the described sealing cylinder fixed head (57) long emissions groove (61), fixed support (56) passes long emissions groove (61) and is fastened by nut (62).

9, the inlet pipe of plastic draw-blow machine as claimed in claim 1 and bottle pushing mechanism, it is characterized in that on the draft cylinder fixed head (63) of described draft cylinder (60) installation, draft cylinder fixed head (63) is fixed on the sealing cylinder fixed head (57) through guide post (58), and connecting plate is along the upper and lower slip of guide post (58).

10, as the inlet pipe and the bottle pushing mechanism of claim 1 or 9 described plastic draw-blow machines, it is characterized in that described connecting plate comprises upper junction plate (59) and lower connecting plate (64), upper and lower connecting plate (59,64) is connected by pole (65), upper junction plate (59) connects the piston rod (66) of draft cylinder, and lower connecting plate (64) is stretching bar (1) fixedly.