CN103587109A

CN103587109A - Mode locking device of hollow plastic product forming machine

Info

Publication number: CN103587109A
Application number: CN201310545887.8A
Authority: CN
Inventors: 邱建成
Original assignee: Suzhou Tongda Machinery Co Ltd
Current assignee: Suzhou Tongda Machinery Co Ltd
Priority date: 2013-11-06
Filing date: 2013-11-06
Publication date: 2014-02-19
Anticipated expiration: 2033-11-06
Also published as: CN103587109B

Abstract

The invention discloses a mode locking device of a hollow plastic product forming machine and belongs to the technical field of plastic product forming machinery. The hollow plastic product forming machine comprises a left mode base and a right mode base. The mode locking device comprises a mode locking acting cylinder and a locking-pin locking mechanism and is characterized in that the tail end of the mode locking acting cylinder is connected with a locking pin; one end, which faces the locking-pin locking mechanism, of the locking pin forms a locking groove and a locking pin head; the locking-pin locking mechanism comprises a locking barrel body, a locking sleeve, a locking sleeve driving acting cylinder and a pair of semi-conical clamping sleeves; a pair of guide blocks is arranged on one side, which faces the cavity of the locking barrel body, of the barrel wall; one guide block is matched with a guide slot formed in one semi-conical clamping sleeve in a sliding manner, and the other guide block is matched with a guide slot in the other semi-conical clamping sleeve in a sliding manner; the locking groove is matched with a locking cavity; the locking pin head is matched with a locking pin head cavity. The mode locking device of the hollow plastic product forming machine ensures that a left half mode and a right half mode can be ideally assembled and guarantees a durable and reliable using effect; the service life can be prolonged, and the electric energy consumption can be reduced.

Description

The clamping apparatus of hollow plastic product molding machine

Technical field

The invention belongs to plastic molding machine technical field, be specifically related to a kind of clamping apparatus of hollow plastic product molding machine.

Background technology

As the industry's knowledge of the reason; hollow plastic product molding machine comprises support, be located at mould bases mobile device on support, be in transmission connection with mould bases mobile device and under the work of mould bases mobile device, close up each other or left and right mould bases that phase mutual exclusion is opened and be arranged on the mold closing mechanism between left and right mould bases; for blowing one of them half module of a pair of half module of plastic products, be arranged on left mould bases; and another half module is arranged on right mould bases, left and right mould corresponds to each other.When matched moulds, first by mould bases mobile device, worked, left and right mould bases is closed up each other, by left and right mould bases, together with a pair of half module, closed up, after closing up, a pair of half module worked by clamping apparatus, make a pair of half module locking.That is to say, make the joint close face of a pair of half module in sufficient closure state, under this state by the huffing device of hollow plastic product molding machine (industry custom claims blow needle device) to being positioned at the molten plastics inflation moulding of the die cavity of a pair of half module, after inflation moulding, clamping apparatus unlocks, and make by mould bases mobile device the direction displacement that left and right mould bases is contrary towards each other, because a pair of half module is arranged on left and right mould bases, therefore a pair of half module in company with left and right mould bases towards each other with direction displacement, the goods demoulding of inflation moulding.

As shown in the above description, hollow plastic product molding machine need to be coordinated jointly by mould bases mobile device and clamping apparatus, just can complete the blowing to hollow plastic product, hollow plastic product is if the various containers that are mainly used in logistic industry turnover goods or claim the pallet of stacking goods and have cavity volume with separate space are as code racking of drum and the various human relations bucket etc. that adds.

The quality of the locked mode effect of clamping apparatus can affect the mass formation of aforementioned hollow plastic product, for example, if the joint close face (land area) of a pair of half module can not be reliably closed, so when huffing device inflation, the plastics of melting (custom claims material) can release from the gap of joint close face, on hollow plastic product, leave overlap, have a strong impact on the quality of product and even cause and scrap.

Technical information about clamping apparatus is no lack of and is seen in published Chinese patent literature; the achievement part of " matched mould locking mechanism of hollow plastic molding press " that application for a patent for invention publication number CN101502999A recommends has been to make up the matched mould locking mechanism of CN2705301Y(plastic hollow formation machine), CN2376374Y(is without pull bar clasp mould mechanism) and CN2505275Y(pair pull formula clampings) logical fraud, specifically can walk to referring to the description of CN101502999A the 2nd page of the 23rd row and Instructions Page 3 10-14 for the 1st page the 5th capable.

" magnetic mold closing device of hollow plastic product molding machine " (this patent is proposed by the applicant) that Chinese invention patent Granted publication CN101890805B provides eliminated 3 technology shortcomings of aforementioned CN101502999A, specifically can be referring to description the 0004th hurdle and 0017 hurdle of this CN101890805B.But this CN101890805B still exists the technical scheme of " clamping apparatus of hollow plastic product molding machine " (this patent is proposed by the applicant) that 5 shortcomings provide by application for a patent for invention publication No. CN102848558A to be overcome, specifically can be referring to the 0006th section and the 0009th section and the 0019th section, the description of this patent application.Yet still there is following shortcoming in this CN102848558A: one, because locked mode acting cylinder Zhu Qinqu mechanism is by formations such as a pair of acting cylinder (patent application deserves to be called acting cylinder and lower acting cylinder) and the upper engagement fixture block being connected with the acting cylinder post of a pair of acting cylinder respectively and lower engagement fixture blocks, and upper, each formation of the side facing each other of lower engagement fixture block has semicircular ring tooth, by the cylinder post engagement on the locked mode acting cylinder post of semicircular ring tooth and locked mode acting cylinder by a left side, the matched moulds state of half module on right mould bases in expectation, thereby overall structure is comparatively complicated, give to manufacture with assembling and cause trouble, they are two years old, because semicircular ring tooth and cylinder post engaging tooth there will be wear phenomenon after perseveration, thereby be difficult to the fiting effect that remains lasting, once because there are wearing and tearing in semicircular ring tooth and/or cylinder post engaging tooth, the gap of tooth just increases gradually, locked mode effect weakens gradually, the final quality that affects hollow plastic product, for example on hollow plastic product, leave visible spue line or overlap impressively, unless changed in time aforesaid upper and lower engagement fixture block and locked mode acting cylinder, but change these parts, affect on the one hand production efficiency, increase on the other hand use cost, its three, because needs are equipped with three oil cylinders or cylinder, thereby not only increase the difficulty of managing and protecting to equipment, and be unfavorable for saving energy resource consumption.

In view of above-mentioned prior art, still have necessity of improvement, for this reason, the applicant has done positive and useful design, and taking strict secrecy provision Xia the applicant plant area to carry out simulated test, it is practicable that result proves, and technical scheme described below produces under this background.

Summary of the invention

Task of the present invention be to provide a kind of contribute to become engagement system into Tenon fit system use guarantee to be separately positioned on the left and right half module on left and right mould bases reliable closure effect, be conducive to avoid wearing and tearing to use and ensure lasting service life and be of value to the clamping apparatus that the quantity that reduces oil cylinder or cylinder is used the hollow plastic product molding machine of saving energy consumption.

Task of the present invention completes like this, a kind of clamping apparatus of hollow plastic product molding machine, described hollow plastic product molding machine comprises left mould bases and the right mould bases corresponding to each other, described clamping apparatus comprises the locked mode acting cylinder that is arranged on described left mould bases and is arranged on lock pin locking mechanism on described right mould bases and that position is corresponding with the locked mode acting cylinder post of locked mode acting cylinder, be characterised in that: the end at described locked mode acting cylinder post is connected with a lock pin, this pin pin forms and has a sealed groove and a lock pin head towards one end of described lock pin locking mechanism, lock pin head is positioned at the end of sealed groove, described lock pin locking mechanism comprises a sealed cylindrical shell, one locking cover, one locking cover drives acting cylinder and a pair of half-conical cutting ferrule, sealed cylindrical shell is fixed on described right mould bases with horizontal boom state, at this sealed cylindrical shell on the barrel of one end of described lock pin and the middle position that is positioned at barrel offer a lock pin head manhole appendix communicating with the sealed cylinder chamber of sealed cylindrical shell, locking cover drives acting cylinder to fix with the horizontally-arranged state of level and sealed cylindrical shell, this locking cover drives the driving acting cylinder post of acting cylinder to be stretched in described sealed cylinder chamber, a pair of half-conical cutting ferrule is arranged in sealed cylinder chamber with the state coordinating that faces each other, and the position corresponding to described lock pin head manhole appendix, at this pair of half-conical cutting ferrule, on the end face of one end of described barrel, respectively offer a gathering sill, between the mating surface of a pair of half-conical cutting ferrule, be provided with cone cutting ferrule back-moving spring, and at a pair of half-conical cutting ferrule, on the outer wall of one end of locking cover, be respectively embedded with for the semicircle magnetosphere with the chamber wall adhesive of the locking cover conical cavity of locking cover by half-conical cutting ferrule, and a pair of half-conical is fastened in closed rear common formation a sealed chamber and a lock pin head cavity, described locking cover is fixed with the end of described driving acting cylinder post, described locking cover conical cavity matches with described a pair of half-conical cutting ferrule, wherein: at described barrel towards a side of sealed cylinder chamber and be provided with a pair of guide pad in the position of the gathering sill corresponding to described, described gathering sill on one of them half-conical cutting ferrule in one of them guide pad in this pair of guide pad and described a pair of half-conical cutting ferrule is slidably matched, and another guide pad in a pair of guide pad and the described gathering sill on another half-conical cutting ferrule in described a pair of half-conical cutting ferrule are slidably matched, described sealed groove matches with described sealed chamber, and described lock pin head matches with described lock pin head cavity.

In a specific embodiment of the present invention, end at described locked mode acting cylinder post offers a cylinder axis of a cylinder to internal thread hole, described lock pin forms and has a lock pin external screw thread connector towards one end of locked mode acting cylinder post, and this locked mode external screw thread connector is threaded to screwed hole with cylinder axis of a cylinder.

In another specific embodiment of the present invention, the shape of described lock pin head is hemispherical.

In another specific embodiment of the present invention, on described lock pin and in the position facing each other, each formation has one for the milling flat for operation wrench operated.

In another specific embodiment of the present invention, it is oil cylinder or cylinder that described locked mode acting cylinder and described locking cover drive acting cylinder.

Of the present invention, also have in a specific embodiment, on the described mating surface of described a pair of half-conical cutting ferrule and in position to correspond to each other, respectively offer spring-loaded hole, one end of described spring is supported in the described spring-loaded hole on the mating surface of one of them the half-conical cutting ferrule in a pair of half-conical cutting ferrule, and the other end of spring is supported in the described spring-loaded hole on the mating surface of another half-conical cutting ferrule in a pair of half-conical cutting ferrule.

More of the present invention and in a specific embodiment, on the chamber diapire of the locking cover conical cavity of described locking cover and the middle position that is positioned at chamber diapire offer a driving acting cylinder post connecting hole, on this driving acting cylinder post connecting hole, be equipped with a driving acting cylinder post attachment screw, this driving acting cylinder post attachment screw is fixedly connected with described driving acting cylinder post.

In of the present invention and then a specific embodiment, between the outer wall of one end overlapping towards described locking at described a pair of half-conical cutting ferrule and the chamber wall of described sealed cylinder chamber, formation is useful on the locking cover probeing into for locking cover and probes into gap, when by the moving locking cover of described driving acting cylinder cornice when described locking cover probes into gap and probes into, a pair of half-conical cutting ferrule enters described locking cover conical cavity and in closure state, by described lock pin head cavity, described lock pin head is locked, and when withdrawing locking cover by the moving locking cover of described driving acting cylinder cornice and probe into gap, a pair of half-conical cutting ferrule leaves locking cover conical cavity and scolds out each other, described lock pin head is discharged.

The technique effect of technical scheme provided by the invention is: because the locking cover conical cavity of the locking cover of lock pin locking mechanism and a pair of half-conical cutting ferrule can form the matching relationship as Tenon, thereby a pair of half-conical cutting ferrule can be to lock pin lock pin head positive lock, left and right half modular ideal of guaranteeing to be separately positioned on left and right mould bases is closed; Because locking cover can frayedly not affect with coordinating of a pair of half-conical cutting ferrule, thereby lasting and reliable result of use can be ensured, the service life of whole clamping apparatus can be extended ultimate attainmently; Owing to only needing to use locked mode acting cylinder and locking cover to drive acting cylinder, thereby effectively reduce the quantity of oil cylinder or cylinder, be conducive to save power consumption.

Accompanying drawing explanation

Fig. 1 is embodiments of the invention structure chart.

Fig. 2 is the lock pin locking mechanism shown in Fig. 1 and the schematic diagram of lock pin in released state.

Fig. 3 is the schematic diagram that the lock pin locking mechanism shown in Fig. 1 and lock pin are in the lock state.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but to the description of embodiment, be not all the restriction to the present invention program, any according to the present invention design, done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.

In the following description, every concept that relates to the directionality of up, down, left, right, before and after and so on is all for the residing location status of accompanying drawing being described, thereby can not be understood as the specific limited to the specific embodiment of the present invention.

Embodiment:

Refer to Fig. 1, provided left mould bases 1a and the right mould bases 1b of the structural system of the forming machine that belongs to hollow plastic product, according to common practise, on left mould bases 1a, left half module is installed, and on right mould bases 1b and corresponding to the position of left half module, right half module is being installed.And then according to common practise, a plurality of for example 4 or 6 clamping apparatus that belong to structural system of the present invention are conventionally set between left and right mould bases 1a, 1b, and concrete reason can be referring to the 0025th section, the 0025th section, the description of Chinese invention patent CN101890805B and the description of CN102848558A.

A locked mode acting cylinder 2 and a lock pin locking mechanism 3 as the structural system of clamping apparatus of the present invention have been provided, locked mode acting cylinder 2 is arranged on locked mode acting cylinder seat 22 with the horizontally-arranged state of level, and locked mode acting cylinder seat 22 adopts one group of locked mode acting cylinder seat hold-down screw 221 to be fixed on aforementioned left mould bases 1a towards a side of right mould bases 1b, and lock pin locking mechanism 3 is arranged on right mould bases 1b towards a side of left mould bases 1a and corresponding with locked mode acting cylinder 2, by locked mode acting cylinder post 21 lockings of 3 pairs of locked mode acting cylinders 2 of this lock pin locking mechanism.

As shown in Figure 1, at the end of locked mode acting cylinder post 21, it is also i.e. internal thread hole 211 in one end of lock pin locking mechanism 3 offers a cylinder axis of a cylinder of right-hand member, at this cylinder axis of a cylinder to the one end (diagram left end) that is connected with a lock pin 4 on internal thread hole 211, and the other end of lock pin 4 (right-hand member of shown position) formation has a sealed groove 41 and a lock pin head 42, lock pin head 42 is positioned at the end of sealed groove 41, and the shape of lock pin head 42 is hemispherical, more precisely the shape of lock pin head 42 is glans penis shape.Because the diameter of sealed groove 41 is significantly less than the diameter of lock pin 4, thereby for lock pin head 42, this sealed groove 41 has played the effect of neck, contributes to lock pin locking mechanism 3 lockings that lock pin head 24 also will be described in detail below.In addition, in order to ensure lock pin 4, be connected to internal thread hole 211 with aforementioned cylinder axis of a cylinder, therefore at lock pin 4, towards one end of locked mode acting cylinder post 21, be that illustrated left end formation has a lock pin external screw thread connector 43, by this lock pin external screw thread connector 43 and the screw thread of cylinder axis of a cylinder to internal thread hole 211, connect and whole lock pin 4 be connected on locked mode acting cylinder post 21, thus by lock pin locking mechanism 3 by the locking of lock pin 4 or release are realized to locking and the release to locked mode acting cylinder post 21.Hence one can see that, and locked mode acting cylinder post 21 is indirectly by lock pin locking mechanism 3, locked or discharge, and so-called indirectly concept is to realize by the lock pin 4 between locked mode acting cylinder post 21 and lock pin locking mechanism 3.

For the lock pin external screw thread connector 43 of lock pin 4 is easily and reliably connected to internal thread hole 211 with cylinder axis of a cylinder, thereby each formation has a milling flat 44 on lock pin 4 and in the position facing each other, fork spanner or monkey wrench or other similar instrument can operate by means of 44 pairs of lock pins 4 of this milling flat, make lock pin 4 not only convenient but also fast and be reliably connected to internal thread hole 211 with cylinder axis of a cylinder.

In the present embodiment, aforesaid locked mode acting cylinder 2 adopts oil cylinders, yet if cylinder is replaced to oil cylinder for evading the present invention's object, should be considered as equivalent substitution so and still belong to technology contents category disclosed by the invention.

Please continue to refer to Fig. 1, above mentioned lock pin locking mechanism 3 preferably but not the structure being definitely limited to is as follows: comprise that a sealed cylindrical shell 31, locking cover 32, an one locking cover drive acting cylinder 33 and a pair of half-conical cutting ferrule 34, sealed cylindrical shell 31 is fixed on sealed cylindrical shell holder 314 with horizontal boom state by one group of sealed cylindrical shell hold-down screw 313, and sealed cylindrical shell holder 314 adopts one group of sealed cylindrical shell holder hold-down screw 3141 to be fixed on aforementioned right mould bases 1b towards a side of left mould bases 1a, and sealed cylindrical shell 31 is corresponding with aforementioned locked mode acting cylinder post 21.Shown in figure, at sealed cylindrical shell 31 on the barrel 311 of one end of aforementioned lock pin 4 (diagram left end) and the middle position that is positioned at this barrel 311 offer a lock pin head manhole appendix 3111 communicating with the sealed cylinder chamber 312 of sealed cylindrical shell 31.Locking cover drives acting cylinder 33 to show by one group of acting cylinder hold-down screw 332(Fig. 2 and Fig. 3) with the horizontally-arranged state of level and sealed cylindrical shell 31, towards one end of aforementioned sealed cylindrical shell holder 314, to fix, this locking cover drives the driving acting cylinder post 331 of acting cylinder 33 to be stretched in sealed cylinder chamber 312.A pair of half-conical cutting ferrule 34 matches with the surface state that faces with each other, and be arranged on sealed cylinder chamber 312 towards one end of aforementioned barrel 311, that is to say that a pair of half-conical cutting ferrule 34 is corresponding to the position of aforesaid lock pin head manhole appendix 3111, at a pair of half-conical cutting ferrule 34, on the end face of one end of barrel 311, (being on the left end end face of a pair of half-conical cutting ferrule 34) respectively offers a gathering sill 341, is provided with cone cutting ferrule back-moving spring 342 between the mating surface (also can claim joint close face) of a pair of half-conical cutting ferrule 34.According to professional general knowledge, the a pair of half-conical cutting ferrule 34 coordinating that faces each other respectively has two mating surfaces, therefore on each mating surface and in corresponding position, offer a pair of (but not definitely being limited to a pair of) spring-loaded hole 346, aforesaid cone cutting ferrule back-moving spring 342 has a pair of for a mating surface of a pair of half-conical cutting ferrule 34, there are two pieces, so just have two pairs for two mating surfaces, there are four pieces (specifically by Fig. 1, being illustrated), each one end of boring cutting ferrule back-moving spring 342 is supported in the aforementioned spring-loaded hole 346 on the mating surface of one of them the half-conical cutting ferrule in a pair of half-conical cutting ferrule 34, and the other end of respectively boring cutting ferrule back-moving spring 342 is supported in the aforementioned spring-loaded hole 346 on the mating surface of another half-conical cutting ferrule in a pair of half-conical cutting ferrule 34.A pair of half-conical cutting ferrule 34 is respectively embedded with for the semicircle magnetosphere 343 with chamber wall (inwall) adhesive of the locking cover conical cavity 321 of locking cover 32 by half-conical cutting ferrule 34 on the outer wall of one end of locking cover 32, and a pair of half-conical cutting ferrule 34 jointly forms and has a complete sealed chamber 344 and a lock pin head cavity 345 afterwards in closure, aforesaid sealed groove 41 matches with sealed chamber 344, and aforesaid lock pin head 42 matches with lock pin head cavity 345.Locking cover 32 is positioned at sealed cylinder chamber 312 towards one end of aforementioned driving acting cylinder post 331, that is to say that aforesaid a pair of half-conical cutting ferrule 34 is positioned at the left end of sealed cylinder chamber 312, and locking cover 32 is positioned at the right-hand member of sealed cylinder chamber 312.Shown in figure, locking cover 32 forms a locking cover conical cavity 321, this locking cover conical cavity 321 matches with aforesaid a pair of half-conical cutting ferrule 34, on the chamber diapire of the locking cover conical cavity 321 of locking cover 32 and the middle position that is positioned at chamber diapire offer a driving acting cylinder post connecting hole 3211, on this driving acting cylinder post connecting hole 3211, be equipped with a driving acting cylinder post attachment screw 32111, the screw hole 3311 in the distal end faces of this driving acting cylinder post attachment screw 32111 and aforementioned driving acting cylinder post 331 is fixedly connected with.

Please still see Fig. 1, at aforesaid barrel 311, towards a side of aforementioned sealed cylinder chamber 312 and in the position of the aforementioned gathering sill 341 corresponding on a pair of half-conical cutting ferrule 34, be provided with a pair of guide pad 3113, this a pair of guide pad 3113 each by fixing with the fixing guide pad screw 3112 of barrel 311, and one of them guide pad in this pair of guide pad 3113 and the gathering sill 341 on one of them the half-conical cutting ferrule in a pair of half-conical cutting ferrule 34 are slidably matched, and another guide pad in a pair of guide pad 3113 and the gathering sill 341 on another half-conical cutting ferrule in a pair of half-conical cutting ferrule 34 are slidably matched, specifically by Fig. 1, illustrated in detail.

From above-mentioned explanation and as shown in Figure 1, the function of a pair of half-conical cutting ferrule 34 just as Mechanical Product's Machining equipment as aforesaid lock pin 4 is clamped or being discharged for clamping the claw of workpiece on lathe, and the little head end of a pair of half-conical cutting ferrule 34 is towards the locking cover conical cavity 321 of locking cover 32, and locking cover conical cavity 321 diameters diminish towards the direction away from half-conical cutting ferrule 34 gradually from the direction of half-conical cutting ferrule 34, thereby make to form desirable compensation relationship each other between locking cover conical cavity 321 and a pair of half-conical cutting ferrule 34.Same reason, the width right-to-left (take shown position as example) that aforesaid locking cover probes into gap 347 diminishes gradually.So locking cover 32 probes into while probeing in gap 347 from locking cover, shows with a pair of half-conical cutting ferrule 34 and forms the relation that Tenon coordinates that exactly likes.Make a pair of half-conical cutting ferrule 34 embody desirable closure effect, and then a pair of half-conical cutting ferrule 34 is clamped the lock pin head 42 of aforementioned lock pin 4 in lock pin head cavity 345 reliably, otherwise with example.

Owing to having mentioned semicircle magnetosphere 343 in the above, therefore the material of locking cover 32 be for the metal material of the magnetic conduction of semicircle magnetosphere 343 adhesives.

As the description to locked mode acting cylinder 2, in the present embodiment, aforesaid locking cover drives acting cylinder 33 to adopt oil cylinder, if but with cylinder, replace oil cylinder, should be considered as form and the variation of immaterial equivalence.

Applicant it should be noted that: if the position setting on left and right mould bases 1a, 1b is exchanged by aforesaid locked mode acting cylinder 2 and lock pin locking mechanism 3, be completely passable so, and belong to protection category of the present invention.

Application examples 1:

Refer to Fig. 2 and in conjunction with Fig. 1, Fig. 2 has disclosed left and right mould bases 1a, the state of 1b in scolding out each other.On a left side, right mould bases 1a, before scolding out, 1b needs to remove the locking of 3 pairs of lock pins 4 of lock pin locking mechanism, specifically: locking cover drives the driving acting cylinder post 331 of acting cylinder 33 to cylinder body intrinsic displacement, i.e. displacement to the right (shown position state is example), by driving acting cylinder post 331 to drive 32 displacements to the right of locking cover, under this state, a pair of half-conical cutting ferrule 34 retreats to the accent position of locking cover conical cavity 321, now under the restoring force effect of cone cutting ferrule back-moving spring 342, the contrary towards each other direction of a pair of half-conical cutting ferrule 34 is scolded out, semicircle magnetosphere 343 remains in the state of the chamber wall adhesive with locking cover conical cavity 321.Because a pair of half-conical cutting ferrule 34 is in scolding out state, thereby lock pin head cavity 345 has been removed the control (clamping) to the lock pin head 42 of lock pin 4, so under the work of locked mode acting cylinder 2, the lock pin head manhole appendix 3111 of the lock pin head 42 that makes lock pin 4 from the barrel 311 of locking sleeve 31 exits.And then under the work of mould bases mobile device, make left and right mould bases 1a, the mutual exclusion of 1b phase open, and realize die sinking, the left half module that namely makes to be arranged on left mould bases 1a is opened with the right half module being arranged on right mould bases 1b.Due to the opening or close and belong to known technology of left and right mould bases 1a, 1b, for example can be referring to Chinese patent notification number CN101890805B and publication No. CN102848558A, so applicant repeats no more.

Application examples 2:

Refer to Fig. 3 and in conjunction with Fig. 1, when left and right mould bases 1a, 1b arrive pre-matched moulds position, clamping apparatus of the present invention enters duty, and the pre-matched moulds position said here refers to that the left half module being arranged on left mould bases 1a and the right half module being arranged on right mould bases 1b are tending towards closing up state.Under this state, by locked mode acting cylinder seat 22, be fixed on the work (by the operation to electric control box) of the locked mode acting cylinder 2 on left mould bases 1a, locked mode acting cylinder post 21 directions towards lock pin locking mechanism 3 are stretched, until enter in sealed cylindrical shell 31 from lock pin head manhole appendix 3111, now the pin of lock pin 4 closes groove 41 corresponding to the sealed chamber 344 of a pair of half-conical cutting ferrule 34, and lock pin head 42 is corresponding to lock pin head cavity 345.Then, by make locking cover drive acting cylinder 33 work to the operation of electric control box, drive acting cylinder post 331 to stretch outside cylinder body, to left dislocation, drive locking cover 32 to left dislocation, a pair of half-conical cutting ferrule 34 enters the depths (diagram right side) of locking cover conical cavity 321 under the state of active force that overcomes cone cutting ferrule back-moving spring 342, and until completely closed each other.Under this state, by cooperatively interacting of a pair of half-conical cutting ferrule 34, lock pin head 42 is locked in lock pin head cavity 345 reliably, the huffing device of hollow plastic product molding machine to the process of the material base in the die cavity of left and right half module (plastic pipe of molten condition) inflation in, can not make because being under pressure to occur between the joint close face of left and right half module empty seam, guarantee the quality of hollow plastic product.Imbibition device is blown while finishing rear die sinking, the locking that makes lock pin locking mechanism 3 remove lock pin head 42 by the superincumbent explanation of applicant, locked mode acting cylinder 2 reverse operations, under the reverse operation of mould bases travel mechanism, left and right mould bases 1a, 1b scold out, and the hollow plastic product of moulding is deviate from from left and right half module.

Claims

1. a kind of clamping apparatus of hollow plastic product molding machine, described hollow plastic product molding machine comprises left mould bases (1a) and the right mould bases (1b) corresponding to each other, described clamping apparatus comprises the locked mode acting cylinder (2) being arranged on described left mould bases (1a) and is arranged on lock pin locking mechanism (3) on described right mould bases (1b) and that position is corresponding with the locked mode acting cylinder post (21) of locked mode acting cylinder (2), it is characterized in that: the end at described locked mode acting cylinder post (21) is connected with a lock pin (4), this pin pin (4) forms and has a sealed groove (41) and a lock pin head (42) towards one end of described lock pin locking mechanism (3), lock pin head (42) is positioned at the end of sealed groove (41), described lock pin locking mechanism (3) comprises a sealed cylindrical shell (31), one locking cover (32), one locking cover drives acting cylinder (33) and a pair of half-conical cutting ferrule (34), sealed cylindrical shell (31) is fixed on described right mould bases (1b) with horizontal boom state, middle position upper towards the barrel (311) of one end of described lock pin (4) at this sealed cylindrical shell (31) and that be positioned at barrel (311) offers a lock pin head manhole appendix (3111) communicating with the sealed cylinder chamber (312) of sealed cylindrical shell (31), locking cover drives acting cylinder (33) fixing with the horizontally-arranged state of level and sealed cylindrical shell (31), this locking cover drives the driving acting cylinder post (331) of acting cylinder (33) to be stretched in described sealed cylinder chamber (312), a pair of half-conical cutting ferrule (34) is arranged in sealed cylinder chamber (312) with the state coordinating that faces each other, and the position corresponding to described lock pin head manhole appendix (3111), at this pair of half-conical cutting ferrule (34), on the end face of one end of described barrel (311), respectively offer a gathering sill (341), between the mating surface of a pair of half-conical cutting ferrule (34), be provided with cone cutting ferrule back-moving spring (342), and at a pair of half-conical cutting ferrule (34), on the outer wall of one end of locking cover (32), be respectively embedded with for the semicircle magnetosphere (343) with the chamber wall adhesive of the locking cover conical cavity (321) of locking cover (32) by half-conical cutting ferrule (34), and a pair of half-conical cutting ferrule (34) jointly forms and has a sealed chamber (344) and a lock pin head cavity (345) afterwards in closure, described locking cover (32) is fixed with the end of described driving acting cylinder post (331), described locking cover conical cavity (321) matches with described a pair of half-conical cutting ferrule (34), wherein: at described barrel (311), towards a side of sealed cylinder chamber (312) and in the position of the gathering sill corresponding to described (341), be provided with a pair of guide pad (3113), one of them guide pad in this pair of guide pad (3113) and the described gathering sill (341) on one of them the half-conical cutting ferrule in described a pair of half-conical cutting ferrule (34) are slidably matched, and another guide pad in a pair of guide pad (3113) and the described gathering sill (341) on another half-conical cutting ferrule in described a pair of half-conical cutting ferrule (34) are slidably matched, described sealed groove (41) matches with described sealed chamber (344), and described lock pin head (42) matches with described lock pin head cavity (345).

2. the clamping apparatus of hollow plastic product molding machine according to claim 1, it is characterized in that offering a cylinder axis of a cylinder to internal thread hole (211) at the end of described locked mode acting cylinder post (21), described lock pin (4) forms and has a lock pin external screw thread connector (43) towards one end of locked mode acting cylinder post (21), and this locked mode external screw thread connector (43) is threaded to screwed hole (211) with cylinder axis of a cylinder.

3. the clamping apparatus of hollow plastic product molding machine according to claim 1, is characterized in that the shape of described lock pin head (42) is hemispherical.

4. the clamping apparatus of hollow plastic product molding machine according to claim 1 and 2, is characterized in that upper at described lock pin (4) and each formation has one for the milling flat (44) for operation wrench operated in the position facing each other.

5. the clamping apparatus of hollow plastic product molding machine according to claim 1, is characterized in that described locked mode acting cylinder (2) and described locking cover drive acting cylinder (33) for oil cylinder or cylinder.

6. the clamping apparatus of hollow plastic product molding machine according to claim 1, it is characterized in that on the described mating surface of described a pair of half-conical cutting ferrule (34) and in position to correspond to each other, respectively offer spring-loaded hole (346), one end of described spring (342) is supported in the described spring-loaded hole (346) on the mating surface of one of them the half-conical cutting ferrule in a pair of half-conical cutting ferrule (34), and the other end of spring (342) is supported in the described spring-loaded hole (346) on the mating surface of another half-conical cutting ferrule in a pair of half-conical cutting ferrule (34).

7. the clamping apparatus of hollow plastic product molding machine according to claim 1, the middle position that it is characterized in that on the chamber diapire of the locking cover conical cavity (321) of described locking cover (32) and be positioned at chamber diapire offers a driving acting cylinder post connecting hole (3211), on this driving acting cylinder post connecting hole (3211), be equipped with a driving acting cylinder post attachment screw (32111), this driving acting cylinder post attachment screw (32111) is fixedly connected with described driving acting cylinder post (331).