CN218660132U

CN218660132U - Mold for accelerating cooling of plastic barrel

Info

Publication number: CN218660132U
Application number: CN202222712563.6U
Authority: CN
Inventors: 陈学兵; 张桂华; 汪亚魁; 刘功胜; 蒙强荣
Original assignee: Guangxi Caike Plastic Products Co ltd
Current assignee: Guangxi Caike Plastic Products Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-21
Anticipated expiration: 2032-10-14

Abstract

A mold for accelerating cooling of a plastic tub, comprising: radiator, radiator controller, compressor switch, hose, expansion valve, public mould, master model, inlet port, fin, exhaust hole, heat dissipation channel, the hole of moulding plastics, guide bar stopper, fixed screw hole, guide bar hole and compressor, be used for accelerating the refrigerated mould of plastic drum and optimize original heat dissipation water course, through the mode of installing the fin additional in heat dissipation channel inside, increased heat radiating area, use the refrigerant to replace original cooling water simultaneously, improved production efficiency.

Description

Mold for accelerating cooling of plastic barrel

Technical Field

The utility model relates to a plastic drum production technical field especially relates to a mould for accelerating plastic drum cooling.

Background

The plastic barrel is mainly used for storing and transporting various liquids, has the characteristics of low fragility, rust resistance, light weight and the like, has good oil resistance and strong corrosion resistance, is mainly used for packaging dangerous goods needing heat preservation, moisture resistance, pressure resistance and corrosion resistance and the like, and is mainly made of polyethylene, polypropylene and other plastics through blow molding or injection molding. After the plastic barrel is subjected to blow molding or injection molding, the plastic barrel needs to be cooled due to the high temperature of the blow molding or injection molding process. The related technologies currently searched are listed below:

chinese patent No. 1; name: a mold capable of accelerating cooling molding of a plastic barrel; patent numbers: 201821128257.5; and (3) abstract: the utility model discloses a can accelerate fashioned mould of plastic drum cooling, including roof, connecting rod, first mould and first telescopic link, the last surface mounting of roof has the workbin, and the lower surface of roof is connected with the picture peg, the connecting rod is located the inboard of picture peg, first mould is located the below of picture peg, the inboard of first mould and second mould is provided with the inner bag, first telescopic link is located the inboard of inner bag, and the bottom mounting of first telescopic link has the connecting plate, the below of connecting plate is provided with the picture peg, the below of support plate is provided with first base, and the right-hand member of first base is connected with the second base. This can accelerate plastic drum cooling shaping's mould is provided with the inner bag in the middle of the mould, and the material of inner bag is copper, and the inner bag is inside to have the pipe of moulding plastics to mould plastics, has still been full of cold water in the inner bag simultaneously, and when the cooling, can accelerate plastic drum cooling shaping through the inside cold water of inner bag, very big saving the time.

Chinese patent 2; name: a mold for cooling and demolding a plastic barrel; patent numbers: 201921642132.9; and (3) abstract: the utility model discloses a be used for plastic drum cooling drawing of patterns mould, including base, last mould and bed die, bed die fixed connection is in the base, it constitutes the die cavity to go up between mould and the bed die, the bed die external fixation is around being equipped with condenser tube, the bottom opening setting of bed die, swing joint has the bottom plate in the bed die, the lower surface of bottom plate articulates there is the ejector pin, the below of bed die is equipped with the dwang, the both ends of dwang all run through the base and be connected with the base rotation, be equipped with screw thread and threaded connection outward and have a screw thread section of thick bamboo, the lower extreme of ejector pin rotates with the lateral wall of a screw thread section of thick bamboo to be connected, fixed mounting has the motor on the lateral wall of base, the motor passes through the drive mechanism transmission with the dwang and is connected. The utility model discloses a set up condenser tube for the cooling rate of product, and the cooling is even, is favorable to improving the quality of product, through setting up the bottom plate, makes the product atress even when the drawing of patterns, is difficult for producing deformation.

The above retrieval results show that the cooling treatment after the forming of the existing plastic bucket is mainly to set a water channel in the mold, and the plastic bucket is cooled by a water cooling mode, but most of the molds with cooling structures are also only provided with cooling passages in the lower part, so that the cooling time of the plastic bucket is inevitably too long, and the production efficiency is influenced.

Disclosure of Invention

The utility model aims at providing a be used for accelerating plastic drum refrigerated mould, further improve the cooling surface and the cooling efficiency of plastic drum mould, take the scheme as follows for realizing above-mentioned purpose:

a mold for accelerating cooling of a plastic tub, comprising: the heat radiator controller and the compressor switch are fixed on the upper end face of the heat radiator, the heat radiator controller is located on the left side of the compressor switch, the male die and the female die are concentric, the male die is located on the left side of the female die, the two air inlet holes are located in the circle center of the left end face of the male die and the right end face of the female die respectively, the heat dissipation channel is located in the position close to the side face in the side wall of the male die and the position close to the inner wall in the side wall of the female die respectively, the plurality of heat radiating fins are fixed in the heat dissipation channel and are arranged along the axial direction of the male die and the female die in a circle mode and are uniformly arranged, the two air outlet holes are located on the left end face of the male die and the left end face of the female die respectively, the injection hole is located in the circle center of the right end face, a set of hoses on the left side are connected with the compressor, the left side heat radiator, the male die, the air outlet holes and the female die are fixed on the left end face of the male die, the guide rod, the four air inlet holes penetrate through guide rod holes, and the guide rod hole, and the four air inlet holes are fixed on the left end face of the left guide rod.

Further, the hose is made of high-temperature-resistant heat-insulating rubber materials.

Furthermore, the male die and the female die are matched for use, when the male die and the female die are matched for use, a uniform gap is reserved between the male die and the female die, the size of the gap is equal to the wall thickness of the plastic barrel to be manufactured, and the plastic barrel is convenient to mold.

Further, the male die and the female die are made of high-temperature-resistant heat-conducting metal materials.

Furthermore, the air inlet is communicated with the heat dissipation channel.

Further, the exhaust hole is communicated with the heat dissipation channel.

Further, the injection molding hole penetrates through the bottom of the female die, so that molten plastic enters the die cavity.

Furthermore, the refrigerant used by the radiator is hydrofluorocarbon R134a.

Furthermore, the length of each guide rod is 2.5 times of the height of the plastic barrel, and the shortest distance between every two adjacent guide rods is 1.5 times of the maximum diameter of the plastic barrel.

The using method comprises the following steps:

when the plastic barrel needs to be produced, the female die is fixed through the fixing bolt, then the male die is moved along the guide rod, the die assembly with the female die is completed, after the die assembly is completed, molten plastic enters the die from the injection molding hole in the bottom of the female die, when the whole die cavity is completely filled with the molten plastic, the injection molding is stopped, and meanwhile, an operator starts the radiator and the compressor through the radiator controller and the compressor switch to start cooling the die. After waiting for the inside plastic drum of mould to cool off the design completely, close radiator and compressor, outwards remove the public mould along the guide bar, can take out the plastic drum from the mould is inside. The utility model has the advantages that:

(1) This application is compared in traditional mould of taking cooling function, all is equipped with cooling channel on public mould and master model, cooling that can be faster, simultaneously, compares in traditional spiral cooling channel, and the cooling channel's of taking the fin that this application adopted heat dissipation cooling area is bigger, also bigger with the area of contact of mould, can be more comprehensive, even cool off the mould, further improve the quality of product.

(2) Compared with the traditional mold with the cooling function, the mold has the advantages that the traditional water cooling is replaced by the hydrofluorocarbon R134a, the mold can be cooled more efficiently and rapidly, the cooling time of the mold is shortened, and the production efficiency of a factory is improved.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a left side view of the male mold of the present invention;

fig. 3 is a cross-sectional view of the male mold of the present invention;

FIG. 4 is a right side view of the female mold of the present invention;

FIG. 5 is a cross-sectional view of the female mold of the present invention;

the meanings of the labels in the figure are as follows:

a heat sink; 2-a radiator controller; 3-compressor switch; 4-a flexible pipe; 5-an expansion valve; 6-male die; 7-a female die; 8-air inlet holes; 9-a heat sink; 10-exhaust hole; 11-a heat dissipation channel; 12-injection molding holes; 13-a guide bar; 14-a guide bar stop block; 15-fixing the threaded hole; 16-a guide rod hole; 17-compressor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

A mold for accelerating cooling of a plastic tub, comprising: the heat radiator comprises a heat radiator 1, a heat radiator controller 2, a compressor switch 3, a hose 4, an expansion valve 5, a male die 6, a female die 7, air inlet holes 8, radiating fins 9, an exhaust hole 10, a heat radiating channel 11, an injection molding hole 12, a guide rod 13, a guide rod limiting block 14, a fixed threaded hole 15, a guide rod hole 16 and a compressor 17, wherein the heat radiator controller 2 and the compressor switch 3 are fixed on the upper end surface of the heat radiator 1, the heat radiator controller 2 is positioned on the left side of the compressor switch 3, the male die 6 and the female die 7 are concentric, the male die 6 is positioned on the left side of the female die 7, the two air inlet holes 8 are respectively positioned on the circle center of the left end surface of the male die 6 and the right end surface of the female die 7, the heat radiating channel 11 is respectively positioned at a position close to the side surface in the side surface wall of the male die 6 and a position close to the inner wall in the side surface wall of the female die 7, a plurality of the radiating fins 9 are fixed in the heat radiating channel 11 and arranged along the axial direction of the male die 6 and the female die 7, evenly distributed in a circle form, two exhaust holes 10 are respectively positioned on the left end side surface of a male die 6 and the left end side surface of a female die 7, an injection hole 12 is positioned on the center of the right end surface of the female die 7, a left set of flexible pipes 4 are sequentially connected with a compressor 17, a left radiator 1, a male die 6 expansion valve 5 and the male die 6 exhaust holes 10 to form a closed loop, a right set of flexible pipes 4 are sequentially connected with the compressor 17, the right radiator 1, the female die 7 expansion valve 5 and the female die 7 exhaust holes 10 to form a closed loop, the two expansion valves 5 are respectively fixed on a male die 6 air inlet hole 8 and a female die 7 air inlet hole 8, four penetrating guide rod holes 16 are evenly arranged on the left end surface of the male die 6 in a circle form, four guide rods 13 are positioned in the guide rod holes 16, the right end surface of the guide rods 13 is fixed on the left end surface of the female die 7, the left end surface of the guide rods 13 penetrates through the guide rod holes 16, a guide rod stopper 14 is fixed on the left end face of the guide rod 13.

Preferably, the hose 4 is made of a high temperature resistant heat insulation rubber material.

Preferably, the male die 6 and the female die 7 are used in a matched manner, and when the male die 6 and the female die 7 are used in a matched manner, a uniform gap is reserved between the male die 6 and the female die 7, and the size of the gap is equal to the wall thickness of the plastic barrel to be manufactured, so that the plastic barrel can be conveniently subjected to injection molding.

Preferably, the male mold 6 and the female mold 7 are made of high temperature resistant heat conductive metal material.

Preferably, the air inlet hole 8 is connected to the heat dissipation channel 11.

Preferably, the exhaust hole 10 is connected to the heat dissipation channel 11.

The injection hole 12 preferably extends through the bottom of the master tool 7 so that the molten plastic enters the mold cavity.

Preferably, the refrigerant used in the radiator 1 is hydrofluorocarbon R134a.

Preferably, the length of the guide rods 13 is 2.5 times of the height of the plastic barrel, and the shortest distance between two adjacent guide rods 13 is 1.5 times of the maximum diameter of the plastic barrel.

Claims

1. A mold for accelerating the cooling of a plastic drum, comprising: the radiator comprises a radiator (1), a radiator controller (2), a compressor switch (3), a hose (4), an expansion valve (5), a male die (6), a female die (7), air inlets (8), radiating fins (9), exhaust holes (10), a radiating channel (11), an injection hole (12), a guide rod (13), a guide rod limiting block (14), a fixed threaded hole (15), a guide rod hole (16) and a compressor (17), wherein the radiator controller (2) and the compressor switch (3) are fixed on the upper end face of the radiator (1), the radiator controller (2) is positioned on the left side of the compressor switch (3), the male die (6) and the female die (7) are concentric, the male die (6) is positioned on the left side of the female die (7), the two radiating channels (11) are respectively positioned on the left end face of the male die (6) and the right end face of the female die (7), the radiating channels (11) are respectively positioned on the inner side face of the male die (6) and the inner wall of the female die (7), the radiating fins (9) are fixed in the radiating channel (11), the female die (7) and the left end face and the male die (7) and the exhaust holes (7) and the male die (7) are uniformly arranged along the axis of the male die (7), injection hole (12) are located master model (7) right-hand member face centre of a circle, one set of hose (4) in the left side connects compressor (17) according to this, left side radiator (1), public mould (6) expansion valve (5), public mould (6) exhaust hole (10), and form closed loop, one set of hose (4) in the right side connects compressor (17) according to this, right side radiator (1), master model (7) expansion valve (5), master model (7) exhaust hole (10), and form closed loop, two expansion valve (5) are fixed respectively on public mould (6) inlet port (8) and master model (7) inlet port (8), evenly be equipped with four guide bar holes (16) of run-through formula with the circumference form on public mould (6) left side terminal surface, four guide bar (13) are located guide bar hole (16), and guide bar (13) right-hand member face is fixed on master model (7) left side terminal surface, guide bar (13) left end surface passes guide bar hole (16), guide bar stopper (14) are fixed on guide bar (13) left end surface.

2. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the hose (4) is made of high-temperature-resistant heat-insulating rubber material.

3. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the male die (6) and the female die (7) are matched for use, and when the male die (6) and the female die (7) are matched for use, a uniform gap is reserved between the male die (6) and the female die (7), the size of the gap is equal to the wall thickness of the plastic barrel to be manufactured, and the plastic barrel is convenient to mold.

4. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the male die (6) and the female die (7) are made of high-temperature-resistant heat-conducting metal materials.

5. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the air inlet (8) is communicated with the heat dissipation channel (11).

6. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the exhaust hole (10) is communicated with the heat dissipation channel (11).

7. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the injection hole (12) penetrates through the bottom of the female die (7) so that molten plastic can enter the die cavity.

8. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the refrigerant used by the radiator (1) is hydrofluorocarbon R134a.

9. The mold for accelerating the cooling of plastic pails as recited in claim 1, wherein: the length of each guide rod (13) is 2.5 times of the height of the plastic barrel, and the shortest distance between every two adjacent guide rods (13) is 1.5 times of the maximum diameter of the plastic barrel.