CN201283639Y - Extrusion-blow machine for plastic hollow vessel - Google Patents

Abstract

A plastic hollow container extrusion blow machine comprises a plasticizing system on the frame, a die head extrusion system and a blow molding system. The blow molding system includes a blowing mechanism and a die open/close mechanism. The die open/close mechanism comprises a front mould plate and a rear mould plate connected by a tension rod. A die is arranged between the front mould plate and the middle mould plate. The die includes two die cavities. A die open/close synchronization mechanism is arranged between the middle mould plate and the rear mould plate, and is characterized in that the inner walls of the two die cavities are provided with material maintaining lever trough; a base is fixed right under the die; the base joints with the fixed plate via upper and lower regulating device; the fixed plate is installed with tilting cylinder and connected with a transverse plate which is fixed with a horizontal pillar via the left and right vertical plates; left and right vertical plates are equipped with an expanding oil cylinder A and an expanding oil cylinder B whose piston rods move oppositely; two piston rods fix the material maintaining block installed with a material maintaining lever; the material maintaining lever co-operates with a material maintaining trough; the material maintaining block is sleeved on the horizontal pillar provided with a blow needle fixing block with a blow needle and the blow needle is matched with the die bottom.

Description

The plastic hollow vessel extruding and blowing machine

Technical field

The utility model relates to the plastic hollow vessel extrusion blow molding machine, is used to make massive article such as oil drum, highway barrier etc., and small-sized goods such as mineral water bottle, beverage bottle, medicine bottle, bottle for cosmetics etc. belong to plastics machinery and make the field.

Background technology

The plastic hollow extrusion blow molding machine is the capital equipment of hollow container moulding, by extruder molten plastic is clamp-oned die head earlier, through die head extruded stock pipe, the material pipe is between two slit bamboo or chopped wood die cavities of mould, and matched moulds, inflatable body inject air in material is managed, the goods blow molding, goods are taken out in die sinking.But existing extruding and blowing machine exists following defective: the first, for massive article, Φ particularly〉goods more than 500 millimeters, it is far from being enough only depending on inflatable body to blow, the result can cause expanding not in place, difficult forming; Second, die head is according to the goods of different geometries, make the wall thickness at each position of extruded stock pipe not of uniform size, be that some position material needs more, and some position material needs few, could blow out the uniform goods of wall thickness like this, making massive article (as oil drum, highway barrier etc.) time, the general accumulator coventry type die head coventry that adopts, but the core of existing accumulator coventry type die head coventry is constant with the fixed-site of mouthful mould, so can not regulate the axial wall thickness of material pipe, very easily causing in the blowing process causes the wall unevenness of end article even because of the wall thickness of material pipe is inharmonious, even produce and to break, goods are scrapped many, and shaping efficiency is low; The 3rd, the clasp mould mechanism that has extruding and blowing machine is general to adopt 4 pull bars to connect front template, middle template and rear pattern plates, and promptly four of each template angles all have pull bar keeping off, all inconvenient when installation mold and taking-up goods, and die cylinder is template in linkage drives, complex structure; The 4th, the manipulator that existing extruding and blowing machine is used to take out goods adopts the guide pillar guiding, guidance quality and wearing no resistance, and since manipulator about do not have lazy-tongs between two tongs, action is difficult to reach synchronous, consistent, causes grasping unstable.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming that prior art exists, to provide a kind of inflatable body of can assisting to finish the blowing process jointly, and massive article (particularly Φ〉more than 500 millimeters goods) expansion is put in place, and moulding is complete; Can regulate the wall thickness size of extruded stock pipe, the wall thickness size at each position of extruded stock pipe be coordinated with end article, thereby made the product wall thickness that is blow molded into even, improve product strength and shaping efficiency; Side between front template and the middle template is with very big space outward, is convenient to installation mold and takes out bigger goods; Manipulator guidance quality and wearability are good, and two tong actions make and grasp stable plastic hollow vessel extruding and blowing machine fully synchronously.

The technical scheme of the utility model plastic hollow vessel extruding and blowing machine is: comprise rack-mounted plasticizing system, die head extrusion system and blow-molding system, described die head extrusion system comprises that rack-mounted die head supports, die head support fixation die head, die head comprises die head loam cake and die body, be shaped on storage cavity in the die body, the die head loam cake is communicated with barrel and storage cavity through the joint neck, and the ring that shoots material is housed in the storage cavity, and the ring that shoots material connects the piston rod of the oil cylinder that shoots material through the pillar that shoots material; Die body lower end connector mould; mouth mould central authorities are provided with core; gap between core and mouthful mould forms the extrusion of annular; described blow-molding system comprises inflatable body and clasp mould mechanism; clasp mould mechanism comprises front template; middle template and rear pattern plate; front template is linked to each other by pull bar with rear pattern plate; between front template and the middle template mould is housed; mould comprises two slit bamboo or chopped wood die cavities of symmetry; between middle template and the rear pattern plate folding mould lazy-tongs are housed; middle template is driven by die cylinder; it is characterized in that described two slit bamboo or chopped wood die cavity inwalls are shaped on support material bar groove respectively; firm banking under the mould; be connected and fixed plate through the up-down adjustment device on the base; hoist cylinder is installed on the fixed head; the piston rod of hoist cylinder connects transverse slat; on the transverse slat through left and right sides riser fixing horizontal guide pillar; left and right sides riser is installed expansion oil cylinder first and expansion oil cylinder second respectively; the direction of motion of two expansion oil cylinder piston bars is opposite; the two-piston bar is respectively through connecting plate rigid staybolt material piece; on the two support material pieces support material bar is installed respectively; support material bar matches with support material bar groove respectively; two support material pieces are enclosed within respectively on the horizontal guide pillar; the blow needle fixed block is housed in the middle of the horizontal guide pillar; on the blow needle fixed block blow needle is installed, blow needle matches with the gas hole of mold bottom.

Plastic hollow vessel extruding and blowing machine of the present utility model is set up expanding mechanism on the basis of existing inflatable body, will expect that earlier the pipe bottom struts, and blows, thereby the material enlargement of pipe is put in place, is easy to moulding, is specially adapted to diameter greater than the goods more than 500 millimeters; Horizontal guide pillar has been arranged; make support material piece first; second operates steadily; its concrete course of work is as follows: system obtains molten plastic from plasticizing; molten plastic is through die head extruded stock pipe (the material pipe is the open circles tubulose); reach the length (promptly support material bar is positioned at the material pipe) of setting when the material pipe after; the closed material that cuts off automatically of mouth mould is managed; expansion oil cylinder first; second starts; drive connecting plate respectively through separately piston rod; support material piece and support material bar move dorsad (promptly to two movement outside); support material bar will expect that the support of pipe bottom is big; till piston rod all stretches out; at this moment; clasp mould mechanism makes the mould matched moulds; matched moulds back brace material bar just in time is positioned at the corresponding support material of die cavity bar groove; hoist cylinder drive transverse slat and all parts that are installed on the transverse slat move upward together; make blow needle insert the gas hole of mold bottom; in the material pipe, inject air by blow needle; behind the blow molding; clasp mould mechanism drives the template die sinking; hoist cylinder drive blow needle moves down and resets; take out goods (can adopt and manually get bottle, also can adopt manipulator to get bottle), the expansion oil cylinder drives support material bar and resets.

Plastic hollow vessel extruding and blowing machine of the present utility model, its described up-down adjustment device comprises the screw rod that fixes with base, regulating wheel is installed in the screw rod upper end, regulating wheel is installed on the fixed head by nut and bearing, but by rotating regulating wheel with regard to the distance between quick adjustment blow needle and the mould gas hole, easy operating.Its described oil cylinder top that shoots material is provided with wall thickness and adjusts oil cylinder, wall thickness is adjusted oil cylinder and is fixed through connector and die head loam cake, the piston rod that wall thickness is adjusted oil cylinder connects adjusting lever, adjusting lever matches with the core inner chamber, the adjusting lever bottom is fastened with a mouthful mould, when the oil cylinder that shoots material drives the ring that shoots material fused materials is penetrated, wall thickness is adjusted oil cylinder and is driven the axial wall thickness that mouthful mould is regulated the extruded stock pipe through adjusting lever simultaneously, promptly regulate the wall thickness of material pipe according to the geometry of goods, the wall thickness size at each position of material pipe is coordinated mutually with goods, make the product wall thickness after the blowing even, can improve the shaping efficiency of goods, also can improve the intensity of goods.The piston rod that its described adjusting lever and wall thickness are adjusted oil cylinder is connected to a fixed through left and right sides tooth nut, and left and right sides tooth nut connects reliable, and the length that can regulate adjusting lever.Its described front template outside is hound fixedly, hound two connects the diagonal angle of front template and rear pattern plate respectively through pull bar, promptly two pull bars lay respectively at the preceding angle and the position, posterior angle (perhaps angle and forward lower comer are gone up in the back) of going up of front template and rear pattern plate, then go up angle (going up the angle perhaps) and there is no pull bar, its space is bigger, is convenient to installation mold and takes out goods.Template during the piston rod of its described die cylinder directly connects has reduced the intermediate connecting rod transmission mechanism, and is simple in structure, and the middle part of template in being driven by piston rod, makes the opening and closing mould steady.On its frame through the crossbeam fixed connecting rod, connecting rod bottom fixed length slideway base, installation slide rail first under the long slideway base, the slide rail first connects short slideway base through the slide block first, short slideway base drives by releasing cylinder, installation slide rail second under the short slideway base, slide rail second connects left and right jig arm through slide block second, the inboard of left and right jig arm is fastening left and right tong respectively, left and right tong contacts with goods, and left and right jig arm is driven by the gripping cylinder, and the gripping lazy-tongs are housed between the left and right jig arm, left and right jig arm adopts two linear guides to lead, and guiding is stable, reliable; Between the left and right jig arm lazy-tongs are installed, make that left and right tong action is synchronous, consistent, grasp stable.Its course of work is as follows: behind the mould matched moulds, releasing the short slideway base of cylinder drive moves under die head, slide block first on the short slideway base is moved on the slide rail first on the long slideway base, after shifting the position onto, the gripping cylinder starts, and the withdrawal piston rod makes left and right jig arm close, slide block second on the left and right jig arm is moved on the slide rail second on the short slideway base, up to clamping the material mouth of pipe; Behind the goods blow molding, the release cylinder drives left and right jig arm and leaves die head, and after the piston rod of release cylinder was reduced to the position, the piston rod of gripping cylinder stretched out, and left and right jig arm is opened, and goods are dropped in the collection bottle case.Its described gripping lazy-tongs comprise sync block, tooth bar first and tooth bar second are housed in the sync block, one of tooth bar first and tooth bar second is meshed with gear respectively, the other end of tooth bar first is fixed on the left jig arm, the other end of tooth bar second is fixed on the right jig arm, and when tooth bar first driven gear rotated, it is reciprocating that gear drives tooth bar second simultaneously, the action that is the tooth bar first in time feeds back to tooth bar second through gear, thereby makes keeping strokes of left and right jig arm.The piston rod of its described gripping cylinder is fixed on the left jig arm, the cylinder body of gripping cylinder is fixed on the right jig arm, just the cylinder block of gripping cylinder is installed in the centre of left and right two jig arm, the piston rod by the gripping cylinder and the bidirectional-movement of cylinder body realize that left and right jig arm moves simultaneously.One of its described long slideway base is equipped with buffer, and the piston of releasing cylinder connects collision block, and collision block contacts with buffer because the action of release cylinder is very fast, buffer has been arranged after, can reduce vibration.

Description of drawings

Fig. 1 is the structural representation of the utility model plastic hollow vessel extruding and blowing machine;

Fig. 2 is that the A of Fig. 1 is to structural representation;

Fig. 3 is the material enlargement of pipe mechanism structure schematic diagram of the utility model plastic hollow vessel extruding and blowing machine;

Fig. 4 is that the B of Fig. 3 is to structural representation;

Fig. 5 is that the C of Fig. 3 is to structural representation;

Fig. 6 is the extrusion die structural representation of the utility model plastic hollow vessel extruding and blowing machine;

Fig. 7 is the clasp mould mechanism structural representation of the utility model plastic hollow vessel extruding and blowing machine;

Fig. 8 is the robot manipulator structure schematic diagram of the utility model plastic hollow vessel extruding and blowing machine;

Fig. 9 is that the E of Fig. 8 is to structural representation;

Figure 10 is that the G of Fig. 8 is to structural representation;

Figure 11 is that the F of Fig. 8 is to structural representation;

Figure 12 is N-N cross-sectional schematic of Figure 10.

The specific embodiment

The utility model discloses a kind of plastic hollow vessel extruding and blowing machine, as shown in Figure 1 and Figure 2, comprise the plasticizing system 81, die head extrusion system 82 and the blow-molding system that are installed on the frame 51, described plasticizing system comprises hopper, barrel, screw rod and electric heater unit; As shown in Figure 6, described die head extrusion system 82 comprises that the die head that is installed on the frame 51 supports 36, die head support fixation die head, die head comprises die head loam cake 27 and die body 37, be shaped on storage cavity 371 in the die body, the die head loam cake is communicated with barrel and storage cavity through joint neck 35, and the ring 19 that shoots material is housed in the storage cavity 371, and the ring that shoots material connects the piston rod of the oil cylinder 33,34 that shoots material through the pillar 31,32 that shoots material; Die body lower end connector mould 25, mouthful mould central authorities are provided with core 20, and the gap between core 20 and mouthful mould 25 forms the extrusion 29 of annular; Described blow-molding system comprises inflatable body 83 and clasp mould mechanism; as shown in Figure 7; clasp mould mechanism comprises front template 42; middle template 44 and rear pattern plate 48; front template 42 is linked to each other by pull bar 46 with rear pattern plate 48; between front template 42 and the middle template 44 mould 1 is housed; mould comprises two slit bamboo or chopped wood die cavities of symmetry; between middle template 44 and the rear pattern plate 48 folding mould lazy-tongs 49 are housed; the concrete structure of folding mould lazy-tongs belongs to prior art; middle template is driven by die cylinder 47; it is characterized in that described two slit bamboo or chopped wood die cavity inwalls are shaped on support material bar groove respectively; firm banking 2 under the mould 1; as Fig. 3-shown in Figure 5; be connected and fixed plate 3 through the up-down adjustment device on the base 2; hoist cylinder 4 is installed on the fixed head; the piston rod 41 of hoist cylinder connects transverse slat 5; on the transverse slat through left and right sides riser 6; 7 fixing horizontal guide pillars 8; left and right sides riser 6; 7 install expansion oil cylinder first 9 and expansion oil cylinder second 10 respectively; two expansion oil cylinder piston bars 91; 101 the direction of motion is opposite; the two-piston bar is respectively through connecting plate 11; 12 rigid staybolt material pieces 13; 14; two support material pieces 13; support material bar 15 is installed respectively on 14; 16; support material bar 15; 16 match with support material bar groove respectively; two support material pieces 13; 14 are enclosed within respectively on the horizontal guide pillar 8; blow needle fixed block 17 is housed in the middle of the horizontal guide pillar; on the blow needle fixed block blow needle is installed, blow needle matches with the gas hole of mold bottom.The technical program is set up expanding mechanism on the basis of existing inflatable body, will expect that earlier the pipe bottom struts, and blows, thereby the material enlargement of pipe is put in place, is easy to moulding, is specially adapted to diameter greater than the goods more than 500 millimeters; Horizontal guide pillar has been arranged; make support material piece first; second operates steadily; its concrete course of work is as follows: system obtains molten plastic from plasticizing; molten plastic is through die head extruded stock pipe (the material pipe is the open circles tubulose); reach the length (promptly support material bar is positioned at the material pipe) of setting when the material pipe after; the closed material that cuts off automatically of mouth mould is managed; expansion oil cylinder first; second 9; 10 start; through piston rod 91 separately; 101 drive connecting plate 11 respectively; 12; support material piece 13; 14 and support material bar 15; 16 motions (promptly to two movement outside) dorsad; support material bar 15; 16 will expect that the support of pipe bottom is big; till piston rod all stretches out; at this moment; clasp mould mechanism makes mould 1 matched moulds; matched moulds back brace material bar 15; 16 just in time are positioned at the corresponding support material of two slit bamboo or chopped wood die cavities bar groove; hoist cylinder 4 drive transverse slats 5 and all parts that are installed on the transverse slat 5 move upward together; make blow needle insert the gas hole of mold bottom; in the material pipe, inject air by blow needle; behind the blow molding; clasp mould mechanism drives the template die sinking; hoist cylinder 4 drive blow needles move down and reset; take out goods (can adopt and manually get bottle, also can adopt manipulator to get bottle), expansion oil cylinder 9; 10 drive support material bar 15; 16 reset.Its described up-down adjustment device comprises the screw rod 21 that fixes with base 2, regulating wheel 22 is installed in screw rod 21 upper ends, regulating wheel is installed on the fixed head 3 by nut 23 and bearing 24, but by rotating regulating wheel 22 with regard to the distance between quick adjustment blow needle and the mould gas hole, easy operating.When reality is made, can be at 5 times fixed guide poles 18 of transverse slat, guide post passes fixed head 3 through guide pin bushing 79, and guide post 18 operates steadily whole expanding mechanism, and guide pin bushing 79 can reduce the wearing and tearing of fixed head 3; Guide post 18 can adopt two or four; The inboard of riser 6,7 can be equipped with mounting bar first 28 respectively, and the magnetic travel switch is housed on the mounting bar first 28, on the connecting plate 11,12 block is housed respectively, and block contacts with the magnetic travel switch, can guarantee effective buffering, avoids bumping; Also can be in the side fixed installation bar second 45 of fixed head 3, as shown in Figure 4, travel switch is equipped with in mounting bar second 45 inboards, as the magnetic travel switch, on the transverse slat 5 sensor is housed, sensor matches with travel switch, travel switch can detect the climb of transverse slat 5 (transverse slat 5 is driven by lift cylinder 4), be mainly used in and detect the blow needle (blow needle is installed on the blow needle fixed block 17) be installed on the transverse slat 5 and whether put in place, be whether blow needle matches with the gas hole of mold bottom, prevent that blow needle is not in place and can't blow molding.As shown in Figure 6, its described oil cylinder 33,34 tops that shoot material are provided with wall thickness and adjust oil cylinder 38, wall thickness is adjusted oil cylinder 38 and is fixed through connector and die head loam cake 27, the piston rod that wall thickness is adjusted oil cylinder 38 connects adjusting lever 21, adjusting lever 21 matches with core 20 inner chambers, and adjusting lever 21 bottoms are fastened with a mouthful mould 25.When the oil cylinder 33,34 of shooting material drives the ring 19 of shooting material fused materials is penetrated, wall thickness is adjusted oil cylinder 38 and is driven the axial wall thickness that mouthful mould 25 is regulated the extruded stock pipe through adjusting lever 21 simultaneously, promptly regulate the wall thickness at each position of material pipe according to the geometry of goods (as oil drum, road guardrail etc.), the wall thickness at each position of material pipe is coordinated mutually with goods, make the product wall thickness after the blowing even, can improve the shaping efficiency of goods, also can improve the intensity of goods.Its concrete course of work is as follows: plasticizing system 81 clamp-ons die head loam cake 27 with fused materials through joint neck 35, mouth mould 25 closures, make storage cavity 371 sealings, material is stored in the storage cavity 371, the ring 19 that will shoot material under the effect of material pressure upwards promotes, make the oil cylinder 33 that shoots material, 34 piston rod moves upward, after the storing amount that reaches setting, oil cylinder 33 shoots material, 34 drive the ring 19 that shoots material moves downward, molten plastic is penetrated from the annular extrusion 29 between core 20 and mouthful mould 25, and wall thickness is adjusted the axial wall thickness that oil cylinder 38 drives mouthful mould 25 control extruded stock pipes simultaneously.Its described adjusting lever 21 is connected to a fixed through left and right sides tooth nut 39 with the piston rod that wall thickness is adjusted oil cylinder 38, and left and right sides tooth nut connects reliable, and the length that can regulate adjusting lever.As shown in Figure 7, its described front template 42 outsides are hound 41 fixedly, hound 41 two connect the diagonal angle of front template 42 and rear pattern plate 48 respectively through pull bar 46, promptly two pull bars are positioned at the preceding angle and the position, posterior angle (perhaps angle and forward lower comer are gone up in the back) of going up of front template 42 and rear pattern plate 48, then go up angle (going up the angle perhaps) and there is no pull bar, its space is bigger, is convenient to installation mold 1 and takes out goods.Template 44 during the piston rod 471 of its described die cylinder 47 directly connects has promptly reduced the intermediate connecting rod transmission mechanism, and is simple in structure, and the middle part of template 44 in being driven by piston rod 471, makes the opening and closing mould steady.The outside of die head extrusion system 82 belows is provided with manipulator 86 (being clamp device), concrete structure is: as Fig. 8-shown in Figure 11, on the frame 51 through crossbeam 52 fixed connecting rods 53, connecting rod bottom fixed length slideway base 54,54 times installation slide rails of long slideway base first 55, slide rail first 55 connects short slideway base 57 through slide block first 56, short slideway base drives by releasing cylinder 58,57 times installation slide rails of short slideway base second 59, slide rail second 59 connects a left side through slide block second 60, right jig arm 61,62, a left side, the inboard of right jig arm is a fastening left side respectively, right tong 63,64, a left side, right tong contacts with goods, a left side, right jig arm 61,62 by 65 drives of gripping cylinder, a left side, between the right jig arm gripping lazy-tongs are housed.Left and right jig arm 61,62 adopts two linear guides (be that slide rail first 55 matches with slide block first 56, slide rail second 59 matches with slide block second 60) to lead, and makes guiding stable, reliable; Between the left and right jig arm 61,62 the gripping lazy-tongs are installed, make that left and right tong 63,64 actions are synchronous, consistent, grasp stable.Its course of work is as follows: behind the mould matched moulds, releasing the short slideway base 57 of cylinder 58 drives moves under die head, slide block first 56 on the short slideway base 57 is moved on the slide rail first 55 on the long slideway base 54, after shifting the position onto, gripping cylinder 65 starts, and withdrawal piston rod 651 makes left and right jig arm 61,62 close, the motion on the slide rail second 59 on the short slideway base 57 of slide block second 60 on the left and right jig arm is up to clamping the material mouth of pipe; Behind the goods blow molding, to release the left and right jig arm 61,62 of cylinder 58 drives and leave die head, after the piston rod of release cylinder 58 was reduced to the position, the piston rod 651 of gripping cylinder 65 stretched out; Left and right jig arm 61,62 is opened, goods are dropped in the collection bottle case.As shown in figure 12, its described gripping lazy-tongs comprise sync block 66, tooth bar first 67 and tooth bar second 68 are housed in the sync block, one of tooth bar first and tooth bar second is meshed with gear 69 respectively, the other end of tooth bar first 67 is fixed on the left jig arm 61, the other end of tooth bar second 68 is fixed on the right jig arm 62, when 69 rotations of tooth bar first 67 driven gears, it is reciprocating that gear 69 drives tooth bar second 68 simultaneously, the action that is tooth bar first 67 in time feeds back to tooth bar second 68 through gear 69, thereby makes keeping strokes of left and right jig arm 61,62.As shown in figure 10, the piston rod 651 of its described gripping cylinder 65 is fixed on the left jig arm 61, the cylinder body 652 of gripping cylinder 65 is fixed on the right jig arm 62, just the cylinder block of gripping cylinder 65 is installed in the centre of left and right two jig arm 61,62, the piston rod by the gripping cylinder and the bidirectional-movement of cylinder body realize that left and right jig arm moves simultaneously.As shown in Figure 9, one of its described long slideway base 54 is equipped with buffer 70, and the piston of releasing cylinder 58 connects collision block 71, and collision block 71 contacts with buffer 70 because the action of release cylinder is very fast, buffer has been arranged after, can reduce vibration.When reality is made, to release cylinder 58 and adopt the magnetic Rodless cylinder, the piston of releasing cylinder 58 connects collision block 71, and collision block is fastened with short slideway base 57, relies on collision block 71 to drive short slideway base 57, thereby reduces fixture, makes compact conformation.

Claims (10)

1, plastic hollow vessel extruding and blowing machine, comprise rack-mounted plasticizing system, die head extrusion system and blow-molding system, described die head extrusion system comprises that rack-mounted die head supports, die head support fixation die head, die head comprises die head loam cake and die body, is shaped on storage cavity in the die body, and the die head loam cake is communicated with barrel and storage cavity through the joint neck, the ring that shoots material is housed in the storage cavity, and the ring that shoots material connects the piston rod of the oil cylinder that shoots material through the pillar that shoots material; Die body lower end connector mould, mouthful mould central authorities are provided with core, and the gap between core and mouthful mould forms the extrusion of annular; Described blow-molding system comprises inflatable body and clasp mould mechanism; clasp mould mechanism comprises front template; middle template and rear pattern plate; front template is linked to each other by pull bar with rear pattern plate; between front template and the middle template mould is housed; mould comprises two slit bamboo or chopped wood die cavities of symmetry; between middle template and the rear pattern plate folding mould lazy-tongs are housed; middle template is driven by die cylinder; it is characterized in that described two slit bamboo or chopped wood die cavity inwalls are shaped on support material bar groove respectively; firm banking (2) under the mould (1); be connected and fixed plate (3) through the up-down adjustment device on the base; hoist cylinder (4) is installed on the fixed head; the piston rod of hoist cylinder (41) connects transverse slat (5); on the transverse slat through left and right sides riser (6; 7) fixing horizontal guide pillar (8); left and right sides riser (6; 7) expansion oil cylinder first (9) and expansion oil cylinder second (10) are installed respectively; two expansion oil cylinder piston bars (91; 101) the direction of motion is opposite; the two-piston bar is respectively through connecting plate (11; 12) rigid staybolt material piece (13; 14); two support material pieces (13; support material bar (15 is installed respectively 14); 16); support material bar (15; 16) match with support material bar groove respectively; two support material pieces (13; 14) be enclosed within respectively on the horizontal guide pillar (8); blow needle fixed block (17) is housed in the middle of the horizontal guide pillar; on the blow needle fixed block blow needle is installed, blow needle matches with the gas hole of mold bottom.

2, plastic hollow vessel extruding and blowing machine as claimed in claim 1, it is characterized in that described up-down adjustment device comprises the screw rod (21) that fixes with base (2), regulating wheel (22) is installed in screw rod (21) upper end, and regulating wheel is installed on the fixed head (3) by nut (23) and bearing (24).

3, plastic hollow vessel extruding and blowing machine as claimed in claim 1, it is characterized in that the described oil cylinder that shoots material (33,34) top is provided with wall thickness and adjusts oil cylinder (38), wall thickness is adjusted oil cylinder (38) and is fixed through connector and die head loam cake (27), the piston rod that wall thickness is adjusted oil cylinder (38) connects adjusting lever (21), adjusting lever (21) matches with core (20) inner chamber, and adjusting lever (21) bottom is fastened with a mouthful mould (25).

4, plastic hollow vessel extruding and blowing machine as claimed in claim 3 is characterized in that the piston rod that described adjusting lever (21) and wall thickness are adjusted oil cylinder (38) is connected to a fixed through left and right sides tooth nut (39).

5, plastic hollow vessel extruding and blowing machine as claimed in claim 1 is characterized in that fixedly hound (41) of described front template (42) outside, and hound (41) two connects the diagonal angle of front template (42) and rear pattern plate (48) respectively through pull bar (46).

6, plastic hollow vessel extruding and blowing machine as claimed in claim 1, template (44) during the piston rod (471) that it is characterized in that described die cylinder (47) directly connects.

7, plastic hollow vessel extruding and blowing machine as claimed in claim 1, it is characterized in that frame (51) goes up through crossbeam (52) fixed connecting rod (53), connecting rod bottom fixed length slideway base (54), long slideway base (54) is installation slide rail first (55) down, slide rail first (55) connects short slideway base (57) through slide block first (56), short slideway base drives by releasing cylinder (58), short slideway base (57) is installation slide rail second (59) down, slide rail second (59) connects a left side through slide block second (60), right jig arm (61,62), a left side, the inboard of right jig arm is a fastening left side respectively, right tong (63,64), a left side, right tong contacts with goods, a left side, right jig arm (61,62) drive a left side by gripping cylinder (65), between the right jig arm gripping lazy-tongs are housed.

8, plastic hollow vessel extruding and blowing machine as claimed in claim 7, it is characterized in that described gripping lazy-tongs comprise sync block (66), tooth bar first (67) and tooth bar second (68) are housed in the sync block, one of tooth bar first and tooth bar second is meshed with gear (69) respectively, the other end of tooth bar first (67) is fixed on the left jig arm (61), and the other end of tooth bar second (68) is fixed on the right jig arm (62).

9, plastic hollow vessel extruding and blowing machine as claimed in claim 7 is characterized in that the piston rod (651) of described gripping cylinder (65) is fixed on the left jig arm (61), and the cylinder body (652) of gripping cylinder (65) is fixed on the right jig arm (62).

10, plastic hollow vessel extruding and blowing machine as claimed in claim 7 is characterized in that of described long slideway base (54) is equipped with buffer (70), and the piston of releasing cylinder (58) connects collision block (71), and collision block (71) contacts with buffer (70).

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