CN112045970A

CN112045970A - Plastic object blow molding cooling device

Info

Publication number: CN112045970A
Application number: CN202010792503.2A
Authority: CN
Inventors: 应嘉迪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-09
Filing date: 2020-08-09
Publication date: 2020-12-08

Abstract

The invention discloses a plastic object blow molding cooling device, and relates to the technical field of plastic object blow molding cooling; in order to solve the problem of rapid cooling of plastic modules; the die comprises a base, base top one side outer wall is provided with the blank die holder, and the base is close to one side outer wall of blank die holder and is provided with horizontal die pressing mechanism, and horizontal die pressing mechanism's top outer wall is provided with first die holder and second die holder respectively, and solid fixed ring has been welded respectively to the top outer wall of first die holder and second die holder, and one side outer wall that the base is close to horizontal die pressing mechanism is provided with cooling body, base back outer wall is fixed with same threaded rod through two bearing frames, and one side outer wall that the base is close to threaded rod one end is fixed with the motor through the extension board, and the output of motor is connected with the one end of threaded rod through the screw, and the circumference outer wall. The invention reduces the time for cooling the semi-finished product material and improves the molding efficiency of the semi-finished product material.

Description

Plastic object blow molding cooling device

Technical Field

The invention relates to the technical field of plastic object blow molding cooling, in particular to plastic object blow molding cooling equipment.

Background

Blow molding, also known as blow molding, is a rapidly developing plastic processing method. The blow molding process began during world war ii for the production of low density polyethylene vials. In the late 50 s, the blow molding technology has been widely used with the advent of high density polyethylene and the development of blow molding machines. The volume of the hollow container can reach thousands of liters, and computer control is adopted in some production. Suitable plastics for blow molding are polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers.

Through the retrieval, chinese patent application number is CN 201720334744.6's patent, discloses a cavity blowing device, including blowing device main part and hydraulic system, fixed seat platform is installed to the bottom of blowing device main part, just fixed seat platform and blowing device main part fixed connection, the plate cover is installed on the top of fixed seat platform, top dress ware is installed on the top of plate cover, a plurality of evenly distributed's telescopic link is installed to top dress ware's bottom. One of the above-mentioned patents has the following disadvantages: the integral apparatus is relatively slow in the molding process of blow molding plastic parts, and there is no corresponding cooling mechanism to assist in cooling the plastic parts, so that a need exists for a cooling apparatus for blow molding plastic objects.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a plastic object blow molding cooling device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a plastic object blow molding cooling device comprises a base, wherein a blank die holder is arranged on the outer wall of one side of the top of the base, a horizontal die pressing mechanism is arranged on the outer wall of one side, close to the blank die holder, of the base, a first die holder and a second die holder are respectively arranged on the outer wall of the top of the horizontal die pressing mechanism, fixing rings are respectively welded on the outer walls of the tops of the first die holder and the second die holder, a cooling mechanism is arranged on the outer wall of one side, close to the horizontal die pressing mechanism, of the base, the same threaded rod is fixed on the outer wall of the back of the base through two bearing seats, a motor is fixed on the outer wall of one side, close to one end of the threaded rod, of the base through a support plate, the output end of the motor is connected with one end of the threaded rod through threads, the welding of the top outer wall of backup pad has the fixed plate, and bottom one side of fixed plate is provided with guide die mechanism, and top one side outer wall of fixed plate is provided with the second air pump, and the output of second air pump is connected with guide die mechanism through the trachea.

Preferably: extruding means includes the guide cylinder, the feeder hopper, cartridge heater and the hot plate more than three, and the cartridge heater pegs graft on one side outer wall of blank die holder through the pipe of moulding plastics, and open bottom the blank die holder has the water conservancy diversion hole, the tip of the pipe of moulding plastics is connected with the water conservancy diversion hole, every hot plate all sets up on the circumference outer wall of cartridge heater, the bottom outer wall of cartridge heater is provided with PMKD, and one side outer wall welding of PMKD has an installing plate, the guide cylinder sets up in the top of installing plate, the feeder hopper sets up in the top of guide cylinder, one side outer wall that the installing plate is close to the guide cylinder is provided with gear motor, gear motor's output is connected with the.

Further: horizontal die pressing mechanism includes four shifting chutes, go-between, two rack boards, gear, worm wheel and worm, and four shifting chutes are opened respectively on outer wall in the middle of the base top, and equal sliding connection has the fixed block in every shifting chute, and two rack boards weld respectively on the fixed block top outer wall at two diagonal angles wherein, and the equal welding of two rack board top outer walls has the installation piece, and the bottom outer wall of every fixed block and every installation piece is equallyd divide in addition and is do not welded mutually in first die holder and second die holder.

On the basis of the scheme: the base is close to the top outer wall between two rack boards and is fixed with the bull stick through the bearing, and the gear cup joints on the circumference outer wall of bull stick, gear and two rack board intermeshing, and the base is close to and opens there is the cavity below the bull stick, and the worm sets up in the bottom of bull stick, and the worm wheel is fixed in the positive outer wall of base through the pivot on, and the go-between cup joints on the circumference of the one end of pivot, worm wheel and worm intermeshing.

The better scheme in the scheme is as follows: the cooling mechanism comprises a first air pump and a condenser, the first air pump is fixed on the outer wall of the top of the base through a fixed disc, the input end and the output end of the first air pump are connected with the outer wall of one side of the first die holder and the outer wall of one side of the condenser through a guide pipe respectively, the condenser is arranged on the outer wall of the top of the base close to one side of the first air pump, and an air guide fan is arranged in the condenser.

As a further scheme of the invention: the guide die mechanism comprises an air cylinder, a sealing ring, a groove, a forming guide cylinder, a thread groove, a limiting groove, an annular protrusion and a guide pillar, the air cylinder is arranged on the outer wall of the top of the fixing plate, and the forming guide cylinder is arranged on the outer wall of the bottom of the fixing plate.

Meanwhile, the guide pillar is inserted into the top of the forming guide cylinder, the outer wall of the bottom of the forming guide cylinder is provided with a limiting hole, the thread groove is formed in the inner wall of the limiting hole, the limiting groove is formed in the inner wall, close to the lower portion of the thread groove, of the limiting hole, and the annular protrusion is welded to the bottom end of the forming guide cylinder.

As a preferable aspect of the present invention: the sealing ring is welded on the outer wall of the top of the blank die holder, the groove is formed in the circumference of the top of the sealing ring, and the groove is matched with the annular protrusion.

Simultaneously, cylinder extension rod end is connected with the top of guide pillar, and it has the air vent to open in the guide pillar, and tracheal one end is pegged graft in one side of guide pillar.

The invention has the beneficial effects that:

1. this a plasticity object blow molding cooling arrangement, it is rotatory to drive the go-between through rotary driving mechanism, rotatory go-between has driven the worm wheel rotatory, the pivoted worm wheel has driven the bull stick rotation on worm top, the bull stick has driven the gear rotation, and then has driven two rack boards and to middle gathering together, and the rack board that gathers together each other removes respectively in respective shifting chute, and driven first die holder and the laminating of second die holder each other, thereby it can quick extrusion to have guaranteed the semi-manufactured goods material in first die holder and the second die holder, and then effectively reduced the refrigerated time of semi-manufactured goods material, improve its fashioned efficiency.

2. This plastics object blow molding cooling arrangement, during the use, the condenser cools off inspiratory wind to through starting first air pump, in wind after will cooling pours into the first die holder and the second die holder after the laminating into through the pipe, cool down the cooling by the material of cooling air after to extrusion, thereby effectively and make the material shaping fast, improved the fashioned efficiency of plastics material.

3. This a plastic object blow molding cooling arrangement, start the cylinder, extrude tensile with semi-manufactured goods through the guide pillar bottom, make it warp and elongate, afterwards, inject into gas in to the trachea through the second air pump, and inject into semi-manufactured goods material through the air vent in the guide pillar, make its inflation grow, and thread groove and spacing groove can be filled up in its expanded top, the bore of spacing groove is greater than the thread groove, therefore, can effectively carry out effective fixed to it when semi-manufactured goods material shaping, thereby guaranteed that semi-manufactured goods material can not drop in the transportation process, and recess and annular are protruding to have effectively promoted shaping guide cylinder and sealing ring, gu fixed ring's leakproofness, the quality of plastic object shaping blow molding has been improved.

4. This plastics object blow molding cooling device, through leading-in a certain amount of solid-state plastic material in to the feeder hopper to through starting gear motor, gear motor has driven the rotation that the axle was carried to the auger, make in solid-state plastic material leads-in cartridge heater from the guide cylinder, the hot plate on the circumference of rethread start cartridge heater heats solid-state plastic material, thereby has effectively promoted the processingquality of plastic material, also is favorable to accomplishing first step blank making work fast.

Drawings

FIG. 1 is a schematic front view of a cooling apparatus for blow molding a plastic object according to the present invention;

FIG. 2 is a schematic view of a back side structure of a cooling apparatus for blow molding a plastic object according to the present invention;

FIG. 3 is a schematic view of a portion of a blow molding cooling apparatus for plastic objects according to the present invention;

FIG. 4 is a schematic structural view of a forming guide tube in a cooling apparatus for blow molding a plastic object according to the present invention;

fig. 5 is a schematic structural diagram of a transmission mechanism in a blow molding cooling device for plastic objects according to the present invention.

In the figure: 1-guide cylinder, 2-feed hopper, 3-heating cylinder, 4-heating plate, 5-base, 6-moving groove, 7-connecting ring, 8-rack plate, 9-first air pump, 10-condenser, 11-first die holder, 12-second die holder, 13-fixing ring, 14-blank die holder, 15-motor, 16-threaded rod, 17-gear, 18-sliding groove, 19-supporting plate, 20-fixing plate, 21-cylinder, 22-second air pump, 23-sealing ring, 24-groove, 25-forming guide cylinder, 26-threaded groove, 27-limiting groove, 28-annular protrusion, 29-guide pillar, 30-air pipe, 31-worm wheel and 32-worm.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

A plastic object blow molding cooling device is shown in figures 1-5 and comprises a base 5 and an extrusion mechanism, wherein a blank die holder 14 is fixed on the outer wall of one side of the top of the base 5 through bolts, a horizontal pressing mechanism is arranged on the outer wall of one side, close to the blank die holder 14, of the base 5, a first die holder 11 and a second die holder 12 are respectively arranged on the outer wall of the top of the horizontal pressing mechanism, fixing rings 13 are respectively welded on the outer walls of the tops of the first die holder 11 and the second die holder 12, a cooling mechanism is arranged on the outer wall of one side, close to the horizontal pressing mechanism, of the base 5, the same threaded rod 16 is fixed on the outer wall of the back of the base 5 through two bearing seats, a motor 15 is fixed on the outer wall of one side, close to one end of the threaded rod 16, of the output end of the motor 15 is connected with one end, a sliding groove 18 is formed in the outer wall of one side, close to the threaded rod 16, of the base 5, the outer wall of one side of the supporting plate 19 is in sliding fit with the sliding groove 18, a fixing plate 20 is welded to the outer wall of the top of the supporting plate 19, a mold guiding mechanism is arranged on one side of the bottom of the fixing plate 20, a second air pump 22 is fixed to the outer wall of one side of the top of the fixing plate 20 through bolts, and the output end of the second air pump 22 is connected with the mold guiding mechanism through an; when in use, the extrusion mechanism is filled with appropriate materials, the materials are heated and melted by the extrusion mechanism and are led into the blank die holder 14, at this time, taking out the semi-finished product material in the blank die holder 14 through the die guide mechanism, driving the supporting plate 19 on the threaded rod 16 to move to one side of the horizontal die pressing mechanism through the starting motor 15, then moving the semi-finished product material on the die guide mechanism to the upper part of the horizontal die pressing mechanism, starting the horizontal die pressing mechanism to make the first die holder 11 and the second die holder 12 perform die pressing operation on the semi-finished product material, the finished product material is molded, then the second air pump 22 on the fixing plate 20 is started, the second air pump 22 injects air into the molded material through the air pipe 30, so that the molded material completes the blow molding work, and in the period, cold air is blown into the formed material through the cooling mechanism, so that the effect of rapid cooling forming is achieved.

In order to effectively manufacture the semi-finished blank material, the basic work of plastic object blow molding is completed; as shown in fig. 1, the extruding mechanism includes a material guiding cylinder 1, a feeding hopper 2, a heating cylinder 3 and more than three heating plates 4, the heating cylinder 3 is inserted into the outer wall of one side of a blank mold base 14 through an injection molding pipe, a flow guide hole is formed in the bottom of the blank mold base 14, the end part of the injection molding pipe is connected with the flow guide hole, each heating plate 4 is fixed on the outer wall of the circumference of the heating cylinder 3 through a bolt, a fixing bottom plate is fixed on the outer wall of the bottom of the heating cylinder 3 through a bolt, a mounting bottom plate is welded on the outer wall of one side of the fixing bottom plate, the material guiding cylinder 1 is fixed on the top of the mounting bottom plate through a bolt, the feeding hopper 2 is fixed on the top of the material guiding cylinder 1 through a thread, a speed reducing motor is fixed on the; during the use, leading-in a certain amount of solid-state plastic material in to feeder hopper 2 to through starting gear motor, gear motor has driven the rotation of auger delivery axle, makes in solid-state plastic material leads-in cartridge heater 3 from guide 1, and the rethread starts hot plate 4 on the circumference of cartridge heater 3, heats solid-state plastic material, thereby has effectively promoted the processingquality of plastic material, also is favorable to accomplishing first step base making work fast.

In order to promote effective and rapid fitting of the first die holder 11 and the second die holder 12; as shown in fig. 1, 2 and 5, the horizontal die pressing mechanism includes four moving grooves 6, a connecting ring 7, two rack plates 8, a gear 17, a worm wheel 31 and a worm 32, the four moving grooves 6 are respectively arranged on the middle outer wall of the top of the base 5, a fixed block is slidably connected in each moving groove 6, the two rack plates 8 are respectively welded on the top outer walls of the two diagonal fixed blocks, mounting blocks are welded on the top outer walls of the two rack plates 8, the top outer walls of each fixed block and each mounting block are respectively welded on the bottom outer walls of the first die holder 11 and the second die holder 12, a rotating rod is fixed on the top outer wall of the base 5 near the space between the two rack plates 8 through a bearing, the gear 17 is sleeved on the circumferential outer wall of the rotating rod, the gear 17 is mutually engaged with the two rack plates 8, a cavity is formed on the base 5 near the lower part of the rotating rod, and the worm 32 is connected to the bottom end of the, the worm wheel 31 is fixed on the outer wall of the front side of the base 5 through a rotating shaft, the connecting ring 7 is sleeved on the circumference of one end of the rotating shaft, and the worm wheel 31 is meshed with the worm 32; during the use, it is rotatory to drive go-between 7 through rotary driving mechanism, rotatory go-between 7 has driven worm wheel 31 rotatory, pivoted worm wheel 31 has driven the bull stick rotation on worm 32 top, the bull stick has driven gear 17 rotatory, and then has driven two rack boards 8 to gather together to the centre, and the rack board 8 that gathers together each other removes in respective shifting chute 4 respectively, and driven first die holder 11 and the laminating of second die holder 12 each other, thereby guaranteed that the semi-manufactured goods material in first die holder 11 and the second die holder 12 can quick extrusion, and then effectively reduced the time of semi-manufactured goods material cooling, improve its fashioned efficiency.

In order to effectively and rapidly cool the extruded materials in the first die holder 11 and the second die holder 12; as shown in fig. 1, the cooling mechanism includes a first air pump 9 and a condenser 10, the first air pump 9 is fixed on the outer wall of the top of the base 5 through a fixing disc, an input end and an output end of the first air pump 9 are respectively connected with the outer wall of one side of the first die holder 11 and the outer wall of one side of the condenser 10 through a guide pipe, the condenser 10 is fixed on the outer wall of the top of the base 5 near the first air pump 9 through a bolt, and a wind guide fan is arranged in the condenser 10; during the use, condenser 10 cools off inspiratory wind to through starting first air pump 9, pour into the first die holder 11 and the second die holder 12 after the laminating into with the wind after the cooling through the pipe, cool down the cooling by the material of cooling air after to the extrusion, thereby effectively and make the material shaping fast, improved the fashioned efficiency of plastic material.

Aiming at effectively solving the problems of material guiding and stretch blow molding of semi-finished products; as shown in fig. 3-4, the mold guiding mechanism includes a cylinder 21, a sealing ring 23, a groove 24, a forming guide cylinder 25, a thread groove 26, a limiting groove 27, an annular protrusion 28 and a guide post 29, wherein the cylinder 21 is fixed on the outer wall of the top of the fixing plate 20 by a bolt, the forming guide cylinder 25 is fixed on the outer wall of the bottom of the fixing plate 20 by a thread, the guide post 29 is inserted into the top of the forming guide cylinder 25, the outer wall of the bottom of the forming guide cylinder 25 is provided with a limiting hole, the thread groove 26 is provided on the inner wall of the limiting hole, the limiting groove 27 is provided on the inner wall of the limiting hole close to the lower side of the thread groove 26, the annular protrusion 28 is welded at the bottom end of the forming guide cylinder 25, the sealing ring 23 is welded on the outer wall of the top of the blank mold seat 14, the groove 24 is provided on the circumference of the top of the sealing ring 23, the groove, one end of the air pipe 30 is inserted into one side of the guide post 29; when the plastic object blow molding device is used, the air cylinder 21 is started, the semi-finished object is extruded and stretched through the bottom end of the guide pillar 29, the semi-finished object is deformed and elongated, then, air is injected into the air pipe 30 through the second air pump 22, the semi-finished object is injected into the semi-finished object through the vent hole in the guide pillar 29, the semi-finished object is expanded and enlarged, the expanded top end of the semi-finished object can fill the thread groove 26 and the limiting groove 27, the caliber of the limiting groove 27 is larger than that of the thread groove 26, therefore, the semi-finished object can be effectively fixed during molding, the semi-finished object is guaranteed not to fall off during conveying, the sealing performance of the molding guide cylinder 25, the sealing ring 23 and the fixing ring 13 is effectively promoted by the groove 24 and the annular bulge 28, and.

When the device is used, a certain amount of solid plastic material is introduced into the feed hopper 2, the speed reduction motor is started to drive the auger conveying shaft to rotate, so that the solid plastic material is introduced into the heating cylinder 3 from the guide cylinder 1, then the solid plastic material is heated by starting the heating plates 4 on the circumference of the heating cylinder 3, then the melted material is introduced into the blank die holder 14 through the injection molding pipe, before that, the bottom of the forming guide cylinder 25 is mutually attached to the sealing ring 23 through the air cylinder 21, meanwhile, the fixing of the semi-finished material is effectively promoted through the limiting groove 27 at the bottom, at the moment, the support plate 19 on the threaded rod 16 is driven to move towards the first die holder 11 and the second die holder 12 through the starting motor 15, and when the forming guide cylinder 25 is positioned above the first die holder 11 and the second die holder 12, the connecting ring 7 is driven to rotate through the rotary driving mechanism, the rotating connecting ring 7 drives the worm wheel 31 to rotate, the rotating worm wheel 31 drives the rotating rod at the top end of the worm 32 to rotate, the rotating rod drives the gear 17 to rotate, and further drives the two rack plates 8 to gather towards the middle, the rack plates 8 which gather together move in the respective moving grooves 4 respectively, and drives the first die holder 11 and the second die holder 12 to be mutually attached, and the semi-finished product is extruded and stretched through the bottom end of the guide pillar 29 by starting the air cylinder 21 to deform and elongate, then, air is injected into the air pipe 30 through the second air pump 22 and is injected into the semi-finished product through the vent hole in the guide pillar 29 to expand and enlarge, so that the effective forming of the semi-finished product is promoted, and then, the condenser 10 is started, the condenser 10 cools the sucked air, and the cooled air is injected into the first die holder 11 and the second die holder 12 which are attached through the guide pipe by starting the first air pump 9, the material after extrusion is cooled by cooling air, thereby effectively and rapidly forming the material and improving the forming efficiency of the plastic material.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The plastic object blow molding cooling device comprises a base (5) and an extruding mechanism, and is characterized in that a blank die holder (14) is arranged on the outer wall of one side of the top of the base (5), a horizontal die pressing mechanism is arranged on the outer wall of one side, close to the blank die holder (14), of the base (5), a first die holder (11) and a second die holder (12) are respectively arranged on the outer wall of the top of the horizontal die pressing mechanism, fixing rings (13) are respectively welded on the outer walls of the tops of the first die holder (11) and the second die holder (12), a cooling mechanism is arranged on the outer wall of one side, close to the horizontal die pressing mechanism, of the base (5), the same threaded rod (16) is fixed on the outer wall of the back of the base (5) through the two die holders, a motor (15) is fixed on the outer wall of one side, close to one end of the threaded rod (16), and, the circumference outer wall that threaded rod (16) is close to the blank die holder (14) back has cup jointed backup pad (19), and base (5) are close to one side outer wall of threaded rod (16) and have opened spout (18), one side outer wall and spout (18) of backup pad (19) form sliding fit, the welding of the top outer wall of backup pad (19) has fixed plate (20), and bottom one side of fixed plate (20) is provided with leads mould mechanism, top one side outer wall of fixed plate (20) is provided with second air pump (22), and the output of second air pump (22) is connected with leading mould mechanism through trachea (30).

2. A plastic object blow molding cooling apparatus as claimed in claim 1, the extrusion mechanism comprises a material guide cylinder (1), a feed hopper (2), a heating cylinder (3) and more than three heating plates (4), and the heating cylinder (3) is inserted and connected on the outer wall of one side of the blank die holder (14) through an injection molding pipe, and the bottom of the blank die holder (14) is provided with a diversion hole, the end part of the injection molding pipe is connected with the diversion hole, each heating plate (4) is arranged on the circumferential outer wall of the heating cylinder (3), the outer wall of the bottom of the heating cylinder (3) is provided with a fixed bottom plate, and the outer wall of one side of the fixed bottom plate is welded with a mounting bottom plate, the guide cylinder (1) is arranged at the top of the mounting bottom plate, the feeding hopper (2) is arranged at the top of the guide cylinder (1), the outer wall of one side of the mounting bottom plate, which is close to the guide cylinder (1), is provided with a speed reduction motor, and the output end of the speed reduction motor is connected with a packing auger conveying shaft through a connecting shaft.

3. A plastic object blow molding cooling device according to claim 1, wherein the horizontal die pressing mechanism comprises four moving grooves (6), a connecting ring (7), two rack plates (8), a gear (17), a worm wheel (31) and a worm (32), the four moving grooves (6) are respectively opened on the middle outer wall of the top of the base (5), a fixed block is slidably connected in each moving groove (6), the two rack plates (8) are respectively welded on the top outer walls of the two diagonal fixed blocks, the top outer walls of the two rack plates (8) are respectively welded with a mounting block, and in addition, the top outer walls of each fixed block and each mounting block are respectively welded on the bottom outer walls of the first die holder (11) and the second die holder (12).

4. The plastic object blow molding cooling device according to claim 3, wherein a rotating rod is fixed on the outer wall of the top of the base (5) close to the space between the two rack plates (8) through a bearing, a gear (17) is sleeved on the outer wall of the circumference of the rotating rod, the gear (17) is meshed with the two rack plates (8), a cavity is formed below the base (5) close to the rotating rod, a worm (32) is arranged at the bottom end of the rotating rod, a worm wheel (31) is fixed on the outer wall of the front face of the base (5) through a rotating shaft, a connecting ring (7) is sleeved on the circumference of one end of the rotating shaft, and the worm wheel (31) is meshed with the worm (32).

5. The plastic object blow molding cooling device according to claim 1, wherein the cooling mechanism comprises a first air pump (9) and a condenser (10), the first air pump (9) is fixed on the outer wall of the top of the base (5) through a fixing disc, an input end and an output end of the first air pump (9) are respectively connected with the outer wall of one side of the first die holder (11) and the outer wall of one side of the condenser (10) through a conduit, the condenser (10) is arranged on the outer wall of the top of the base (5) on the side close to the first air pump (9), and a wind guiding fan is arranged in the condenser (10).

6. A plastic object blow molding cooling device according to claim 1, wherein the mold guiding mechanism comprises a cylinder (21), a sealing ring (23), a groove (24), a molding guide cylinder (25), a thread groove (26), a limiting groove (27), an annular protrusion (28) and a guide post (29), and the cylinder (21) is disposed on the top outer wall of the fixing plate (20), and the molding guide cylinder (25) is disposed on the bottom outer wall of the fixing plate (20).

7. The plastic object blow molding cooling device according to claim 6, wherein the guide post (29) is inserted into the top of the molding guide cylinder (25), the outer wall of the bottom of the molding guide cylinder (25) is provided with a limiting hole, the threaded groove (26) is provided on the inner wall of the limiting hole, the limiting groove (27) is provided on the inner wall of the limiting hole close to the lower side of the threaded groove (26), and the annular protrusion (28) is welded to the bottom end of the molding guide cylinder (25).

8. Plastic object blow moulding cooling device according to claim 6, characterized in that the sealing ring (23) is welded to the top outer wall of the blank holder (14) and the groove (24) is made on the top circumference of the sealing ring (23), the groove (24) fitting the annular protrusion (28).

9. A cooling apparatus for blow molding plastic objects according to claim 6, wherein the end of the extension rod of the cylinder (21) is connected to the top end of the guide post (29), the guide post (29) is provided with a vent hole, and one end of the air pipe (30) is inserted into one side of the guide post (29).