CN207889108U - Equipment for blowing and bottle blowing machine - Google Patents

Abstract

The utility model provides a kind of equipment for blowing and bottle blowing machine, is related to bottle blowing machine technical field, and the blowning installation ventilatory capacity for solving existing bottle blowing machine is small, and the speed for blowing bottle is slow, the low technical problem of the efficiency of production and processing.The device includes at least one piston；The piston core that the piston includes piston only, is arranged inside the piston only and can be moved axially along the piston only, the piston core end are provided with air tube；The air tube is axially disposed to have air tube pipe, the piston core to be internally provided with the cavity being connected to the air tube pipe, and the cavity inside diameter is more than the air tube bore.The utility model is used to be promoted the ventilatory capacity of blowning installation, improves production and processing efficiency.

Description

Equipment for blowing and bottle blowing machine

Technical field

The utility model is related to bottle blowing machine technical fields, more particularly, to a kind of equipment for blowing and bottle blowing machine.

Background technology

Bottle blowing machine is a kind of equipment that plastic grain being fabricated to hollow container by blow molding process, the air blowing dress of bottle blowing machine It sets on the dynamic model side for being installed on mold, is moved with mold dynamic model in clamping process, blown hollow material after the completion of molding Pipe blow molding, takes out after cooling.

Universal, equipment for blowing in the prior art has piston only, piston, air tube and venthole.Piston and air tube Cavity is provided on.The cavity that piston has is used to pass through for the air tube, and the cavity that air tube has is for making compressed gas It passes through.Air tube passes through the cavity of piston to be fixedly connected with the rear portion of piston.Due to the appearance and size of piston is limited, in process It also needs to ensure the requirement of piston strength and stiffness, there is certain wall thickness across the air tube of internal piston cavity, lead to air tube The cavity very little actually having, ventilatory capacity also very little, during actual use there is more apparent defect.Ventilatory capacity is small to be caused The speed for blowing bottle is slow, low production efficiency；The isometrical hollow cavity that air tube has can not make the compressed gas for entering its inside flat It is slow, cause the product after blow molding to easy to produce the situation of wall unevenness；Elongated air tube is easy in process simultaneously Stress deformation, process meet production requirement air tube difficulty it is larger, production cost is high.

Applicants have discovered that at least there is following technical problem in the prior art：The blowning installation ventilatory capacity of existing bottle blowing machine Small, the speed for blowing bottle is slow, and the efficiency of production and processing is low.

Utility model content

The purpose of this utility model is to provide a kind of equipment for blowing and bottle blowing machines, to solve the air blowing of existing bottle blowing machine Device ventilatory capacity is small, and the speed for blowing bottle is slow, the low technical problem of the efficiency of production and processing.Many technologies provided by the utility model Many technique effects that optimal technical scheme in scheme can be generated (simple processing, at low cost, efficient) are as detailed below to be explained It states.

To achieve the above object, the utility model provides following technical scheme：

A kind of equipment for blowing, the equipment for blowing include at least a piston；The piston include piston only, setting exist And can be along the piston core of piston only axial movement inside the piston only, the piston core end is provided with gas Needle；The air tube is axially disposed air tube pipe, and the piston core is internally provided with the cavity being connected to the air tube pipe, described Cavity inside diameter is more than the air tube bore.

Preferably, it is provided with push pin hole and narrowing hole on the piston only, chamber of pushing pin is provided in the hole of pushing pin, It is provided with narrowing chamber in the narrowing hole；Optionally through it is described push pin hole and narrowing hole to it is described push pin chamber and narrowing chamber Interior ventilation can make the air tube stretch out or withdraw in the piston only；It is additionally provided with venthole on the piston only, For the air tube when stretching out, the piston core cavity is with the venthole in connected state.

Preferably, the axially disposed cavity that the piston core has is ladder-like.

Preferably, it is additionally provided with mounting hole on the piston only, for being fixedly connected with mold dynamic model.

Preferably, it is provided with second seal between the piston core and the piston only, for sealing and lubricating.

Preferably, it is additionally provided with anticollision mechanism on the piston core, for protecting piston only and piston core.

Preferably, the air tube end takes the form of inclined plane, for the air tube easily into and out expects pipe mouth.

Preferably, further include guide sleeve, the guide sleeve is set in the hollow cavity on the right side of piston only, the guiding Set is fixedly connected with the piston only.

Preferably, the guide sleeve and the piston core clearance fit.

The utility model further relates to a kind of bottle blowing machine, including the equipment for blowing described in any of the above one.

Equipment for blowing and bottle blowing machine provided by the utility model, air tube are set to piston core end, and in piston core The cavity that internal diameter is more than air tube pipe is set, can effectively increase the volume of the compressed gas in piston, and then it is logical to increase air tube Tolerance so that the expects pipe blow molding required time shortens, and improves production efficiency.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other drawings may also be obtained based on these drawings.

Fig. 1 is the utility model outside drawing；

Fig. 2 is the structural schematic diagram of the utility model original state；

Fig. 3 is the structural schematic diagram after the utility model piston motion.

1 in figure, hole of pushing pin；2, narrowing hole；3, venthole；4, mounting hole；5, air tube；6, guide sleeve；7, skeleton of usheing to seat is close Seal ring circle；8, piston core；9, piston only；10, piston only tail plug；11, first seal；12, second seal；13, prevent Collide structure；14, air admission hole；15, piston core tail plug.

Specific implementation mode

It, below will be to the technology of the utility model to keep the purpose of this utility model, technical solution and advantage clearer Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Obtained all other embodiment is put, the range that the utility model is protected is belonged to.

The utility model provides a kind of equipment for blowing, and the equipment for blowing includes at least a piston；The piston packet The piston core for including piston only, being arranged inside the piston only and can be moved axially along the piston only, the work Plug core end is provided with air tube；The air tube is axially disposed to have air tube pipe, the piston core to be internally provided with and the air tube The cavity of pipe connection, the cavity inside diameter are more than the air tube bore.The utility model equipment for blowing effectively expands work Plug core can accommodate the volume of gas, increase air tube ventilatory capacity so that the expects pipe blow molding required time shortens, and improves Production efficiency.The technical solution of the utility model is described in detail below in conjunction with attached drawing.

Before introducing technical solutions of the utility model, arrange the left and right, left side, right side etc. be according to Fig. 1, Fig. 2, Direction shown in Fig. 3.

Attached drawing 1~3 is referred to, the utility model equipment for blowing includes at least one piston, and the piston includes piston only 9 With piston core 8.The appearance profile of the piston only 9 can according to the demand of actual use, be designed as square, cuboid or Person is column.9 both ends of the piston only are respectively provided with the columnar hollow inner cavity of the perforative not equidimension in both sides, described hollow Size in the middle part of inner cavity is less than external size.The hollow cavity of the piston only 9 is for being arranged piston core 8.The piston Piston only tail plug 10 is additionally provided in 9 left end face of ontology, the piston only tail plug 10 is used to close the hollow cavity, Ensure that the component in piston only 9 cannot be dropped out from left side, while playing sealing；It is additionally provided on the piston only 9 Mounting hole 4, for being fixedly connected with mold dynamic model.

The piston core 8 is set to inside the piston only 9, and can be along the hollow cavity axis of the piston only 9 To movement.There is the piston core 8 movement portion and mounting portion, the motive position to be set to institute in the left side of the piston core 8 In the hollow cavity for stating 9 left side of piston only.The movement portion of the piston core 8 is comparably the column being relatively large in diameter with mounting portion Body, the size of the column is identical as the size of 9 hollow cavity mating part of the piston only, the movement portion with it is described It is slidably connected between the hollow cavity of piston only 9；In order to reduce the frictional force in 8 movement portion sliding process of piston core, in work Plug core is further opened with groove in 8 movement portion, second seal 12 is provided in the groove, the second seal 12 can be O-ring seal, diaphragm, washer etc..In order to ensure the effect preferably sealed, second seal 12 is preferably O-shaped in the utility model Sealing ring, the second seal 12 not only have Packed effect, while being also equipped with the function of lubrication；The piston core 8 is transported It is also respectively provided with anticollision mechanism 13 on end face at left and right sides of dynamic portion, the form of the anticollision mechanism 13 mainly has spring shock absorption Device, air-shock, Rubber shock-absorbing pad etc., anticollision mechanism 13 described in the utility model are set as Rubber shock-absorbing pad.It is described Anticollision mechanism 13 can be effective to reduce punching to avoid the other component directly hit in 8 motion process of piston core in piston only 9 Power is hit, the stability for protecting piston core 8 or piston only 9 to work long hours will not be damaged easily.

The mounting portion of the piston core 8 is the smaller cylindrical rods of diameter, and the mounting portion can be in the band in the movement portion It slidably reciprocates along the hollow cavity of piston only 9 under dynamic.Simultaneously because the size in the middle part of 9 hollow cavity of the piston only is small In external size, so the piston core 8 can only be packed into from the left side of piston only 9, left side is taken out；The piston only 9 Reinforced seal ring 7 of usheing to seat is additionally provided in the internal end surface of the hollow cavity in left side, it is described to usher to seat reinforced seal ring 7 not only Sealing function can be played, additionally it is possible to reach better anticollision damping effect.

Due to the limitation of cutter or manufacturing process, both sides are offered in the movement portion of the piston core 8 and mounting portion Perforative stairstepping cavity, the stairstepping cavity that the piston core 8 has carry out gas transport for storing compressed gas； The cavity of 8 mounting portion of the piston core is set as at least three sections：Left side cavity, middle cavity and right side cavity.Left side cavity Size is maximum, and the size of right side cavity is slightly larger than the size of middle cavity.The end of the piston core 8, i.e. right side chamber portion For installing air tube 5.In order to make the piston core 8 not generate gas leakage during the work time, loss, the piston core are caused stress Piston core tail plug 15 is additionally provided on end face on the left of 8 movement portions；Be further opened on 8 mounting portion of the piston core it is at least one into Stomata 14 is connected to the cavity, for making gas flow into the cavity of piston core 8.

Correspondingly, the air tube 5 being arranged in the right side cavity of 8 end of piston core, for penetrating expects pipe mouth.The air tube 5 one Section be set in the right side cavity, another section it is exposed outside.The tip designs of the air tube 5 are inclined plane shape, are inserted convenient for air tube 5 Enter and extract expects pipe.The air tube 5 is axially disposed to have air tube pipe, the air tube pipe to be connected to the cavity of the piston core 8, It is passed through for gas.The size for the air tube pipe that the air tube 5 has is less than the size of 8 mounting portion middle cavity of piston core.So Compressed gas can pass through the air tube pipe of the air tube 5, the effective efficiency for promoting expects pipe blow molding at faster speed.

In order to allow the piston core 8 to slidably reciprocate in the piston only 9 not against manpower, in the piston It is additionally provided with push pin hole 1 and narrowing hole 2 on ontology, chamber of pushing pin is provided in the hole 1 of pushing pin, is arranged in the narrowing hole 2 There is narrowing chamber；In the course of work, optionally through it is described push pin hole 1 and narrowing hole 2 to it is described push pin chamber and narrowing chamber Indoor ventilation can make the air tube 5 stretch out or withdraw in the piston only 9；It is additionally provided on the piston only 9 logical Stomata 3 is used for compressed air required when converying feeding tube blow molding.The air tube 5 is when stretching out, the sky of the piston core 8 Chamber is in connected state with the venthole 3；The hole 1 of pushing pin, narrowing hole 2, venthole 3 central axis can be according to using Need be set in same level.Correspondingly, can also be set on different horizontal planes.

It is additionally provided between 8 mounting portion of external cavity and the piston core of 9 right side hollow cavity of the piston only Guide sleeve 6, the guide sleeve 6 is for positioning, supporting the piston core 8.It is fixed between the guide sleeve 6 and piston only 9 to connect It connects, the clearance fit between 8 mounting portion of piston core.The roughness of 6 inner wall of the guide sleeve is much smaller than 9 hollow cavity of piston only The roughness of inner wall.So the guide sleeve 6 can not only play positioning and guiding, frictional force can also be effectively reduced, Ensure the service life of piston core 8；It is arranged fluted on the inner wall of the guide sleeve 6, the first sealing is provided in the groove Part 11, the first seal 11 is for sealing and lubricating.Preferably, first seal 11 described in the utility model is O-shaped Sealing ring.The mounting portion of the piston core 8 can pass through the first seal 11 during the motion, in the first seal 11, under second seal 12 and the collective effect for reinforced seal ring 7 of usheing to seat, make to form a closed chamber in piston only 9 Room, for storing and orienting conveying compressed gas.

Air tube 5 is set in the right side cavity of 8 mounting portion of piston core in the utility model, the cavity that piston core 8 has Size be more than the size of air tube pipe that air tube 5 has, so the cavity that piston core 8 has can accommodate more gas Body.It after compressed gas enters 8 mounting portion of piston core, first flows into 8 mounting portion of piston core in the maximum left side cavity of diameter, compresses It is buffered in the left side cavity being relatively large in diameter in gas meeting 8 mounting portion of piston core, flowing gradually tends to be steady, then relatively steady Compressed gas enter in the middle cavity of 8 mounting portion of piston core.Since the size of middle cavity on 8 mounting portion of piston core is less than The size of left side cavity, so the compressed gas can accelerate across the middle cavity, into smaller air tube 5 Portion.The inner cavity of piston core 8 is designed as ladder-like, it can be ensured that by air tube 5 into the compressed gas of feeding pipe when expects pipe blow molding Body is in plateau, both the gas pulsation strong without air flow swirl or not, makes the product quality obtained after blow molding More preferably, wall thickness is evenly.Meanwhile faster into the flowing velocity of the compressed gas in air tube 5, it can be conveyed in the unit interval Gas is with regard to more.The time that blow molding needs is obviously shortened, and the time for leaving finished product cooling for increases, and can preferably ensure to produce Quality, the effective efficiency for promoting expects pipe blow molding.Meanwhile the length for manufacturing the utility model air tube 5 is shorter, hollow knot Simple processing when structure, needle body are unlikely to deform, and the high yield rate of air tube 5 can effectively reduce production cost.

The course of work of the utility model equipment for blowing is as follows：

When needing blow molding, hole 1 of pushing pin conveys compressed air, and narrowing hole 2 is vented, and piston core 8 is pushed away compressed gas It is moved right under dynamic, air tube 5 is inserted into expects pipe mouth.When 8 mounting portion of piston core, which is moved to, to be contacted with first seal 11, venthole 3 air inlets, compressed air enters 8 mounting portion of piston core, and is blown out from air tube 5 connected to it, completes the blow molding of expects pipe.

After the completion of blow molding, venthole 3 stops conveying compressed air, and narrowing hole 2 starts to convey compressed air, hole of pushing pin 1 is exhausted.Piston core 8 drives air tube 5 to be detached from expects pipe mouth and moves downward under compressed gas effect, the mounting portion of piston core 8 Detached with first seal 11,9 hollow cavity of piston only is in communication with the outside, gas from 8 mounting portion of piston core and guide sleeve 6 it Between gap flow into, no longer there is in piston only 9 closed chamber at this time, will not produce in 8 motion process middle chamber of piston core Raw negative pressure, piston core 8 can be moved downward smoothly.When piston core 8, which is moved to, to be contacted with piston only tail plug 10, hole of narrowing 2 stop conveying compressed air.So far, the utility model equipment for blowing completes one action process.

The utility model also provides a kind of bottle blowing machine, and the bottle blowing machine carries the equipment for blowing.The equipment for blowing is set It is placed on the moving platen of the bottle blowing machine, is moved with mold moving platen.After mold clamping, equipment for blowing repeats above-mentioned work Process, by expects pipe blow molding.

Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power Subject to the protection domain that profit requires.

Claims (10)

1. a kind of equipment for blowing, the equipment for blowing includes at least a piston；It is characterized in that, the piston includes piston sheet Piston core (8) that is internal in the piston only (9) and being moved axially along the piston only (9), institute is arranged in body (9) It states piston core (8) end and is provided with air tube (5)；The air tube (5) is axially disposed to have air tube pipe, the piston core (8) internal It is provided with the cavity being connected to the air tube pipe, the cavity inside diameter is more than the air tube bore.

2. equipment for blowing according to claim 1, which is characterized in that be provided with hole of pushing pin (1) on the piston only (9) With narrowing hole (2), the hole of pushing pin (1) is interior to be provided with chamber of pushing pin, and narrowing chamber is provided in the narrowing hole (2)；Selection Property chamber is pushed pin and narrowing intracavitary is ventilated to described by push pin hole (1) and narrowing hole (2), the air tube (5) can be made It stretches out or withdraws in the piston only (9)；Venthole (3), the air tube (5) are additionally provided on the piston only (9) When stretching out, piston core (8) cavity is with the venthole (3) in connected state.

3. equipment for blowing according to claim 2, which is characterized in that the cavity that the piston core (8) has is set in an axial direction It is set to ladder-like.

4. equipment for blowing according to claim 1, which is characterized in that be additionally provided with mounting hole on the piston only (9) (4), for being fixedly connected with mold dynamic model.

5. equipment for blowing according to claim 4, which is characterized in that the piston core (8) and the piston only (9) it Between be provided with second seal (12), for sealing and lubricating.

6. equipment for blowing according to claim 5, which is characterized in that be additionally provided with anticollision mechanism on the piston core (8) (13), for protecting piston only (9) and piston core (8).

7. equipment for blowing according to claim 1, which is characterized in that air tube (5) end takes the form of inclined plane, for described Air tube is easily into and out expects pipe mouth.

8. equipment for blowing according to claim 1, which is characterized in that further include guide sleeve (6), the guide sleeve is set to In hollow cavity on the right side of piston only (9), the guide sleeve is fixedly connected with the piston only (9).

9. equipment for blowing according to claim 8, which is characterized in that the guide sleeve (6) and the piston core (8) gap Cooperation.

10. a kind of bottle blowing machine, which is characterized in that including equipment for blowing as described in any one of claim 1 to 9.