CN110667082A - Environmental protection heat dissipation type blow mold - Google Patents
Environmental protection heat dissipation type blow mold Download PDFInfo
- Publication number
- CN110667082A CN110667082A CN201910896027.6A CN201910896027A CN110667082A CN 110667082 A CN110667082 A CN 110667082A CN 201910896027 A CN201910896027 A CN 201910896027A CN 110667082 A CN110667082 A CN 110667082A
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- heat dissipation
- channel
- side frame
- mold
- blow molding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
- B29C2049/4825—Moulds with incorporated heating or cooling means for cooling moulds or mould parts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides an environment-friendly heat dissipation type blow molding mold, which belongs to the field of blow molding molds and comprises a first heat dissipation side frame, a second heat dissipation side frame and a blow molding part; the blow molding part comprises a mold main body and an access cover, the mold main body is provided with a first side and a second side which are oppositely arranged, a first heat dissipation side frame is detachably arranged on the first side, and a second heat dissipation side frame is detachably arranged on the second side; the first side is provided with a first channel, the first channel and the second channel are matched to form a first mounting runner groove, and the first mounting runner groove is used for mounting a first radiating pipe; the second side is provided with a third channel, and the third channel and the fourth channel cooperate to form a second mounting runner groove, and the second mounting runner groove is used for mounting a second radiating pipe. First heat dissipation side frame and first heat dissipation side frame conduct the heat dissipation of conducting heat, and first cooling tube and second cooling tube realize that the liquid cooling can improve cooling rate, and the cyclic utilization of coolant liquid can avoid using disposable cooling article moreover, and then improves the feature of environmental protection.
Description
Technical Field
The invention relates to the field of blow molds, in particular to an environment-friendly heat-dissipation type blow mold.
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. Blow molding can be classified into extrusion blow molding and injection blow molding according to the parison making method, and newly developed are multilayer blow molding and stretch blow molding.
However, the existing blow mold gas heat dissipation is usually supported by peripheral refrigeration equipment, and the refrigeration is designed to be larger in power consumption and not environment-friendly.
Disclosure of Invention
The invention provides an environment-friendly heat dissipation type blow molding mold, and aims to solve the problems of the environment-friendly heat dissipation type blow molding mold in the prior art.
The invention is realized by the following steps:
an environment-friendly heat dissipation type blow molding mold comprises a first heat dissipation side frame, a second heat dissipation side frame and a blow molding part;
the blow molding part comprises a mold main body and an access cover, a blow molding cavity is arranged in the mold main body, one end of the blow molding cavity is opened above the mold main body to form an access hole, the access cover is detachably arranged at the access hole, and a blow hole is formed in the access cover;
one end of the blowing cavity corresponding to the access hole forms an air hole at the upper end of the die main body;
the mould main body is also provided with a first side and a second side which are oppositely arranged, the first heat dissipation side frame is detachably arranged on the first side, and the second heat dissipation side frame is detachably arranged on the second side;
the first side is provided with a first channel, one surface of the first radiating side frame, which is matched with the first side, is provided with a second channel, the first channel and the second channel are matched to form a first mounting runner groove, and the first mounting runner groove is used for mounting a first radiating pipe;
the second side is provided with a third channel, one surface of the second radiating side frame, which is matched with the second side, is provided with a fourth channel, the third channel and the fourth channel are matched to form a second mounting runner groove, and the second mounting runner groove is used for mounting a second radiating pipe;
in an embodiment of the invention, the heat pipe further comprises a first heat pipe and a second heat pipe, the first heat pipe is clamped and arranged in the first mounting runner groove, the first heat pipe is provided with a first inlet and a first outlet which are oppositely arranged, and the first inlet and the first outlet are arranged in parallel at one end of the blow mold where the blow hole is arranged;
the second cooling tube joint sets up in the second installation runner inslot, the second cooling tube has relative second influent stream mouth and the second outfall that sets up, the second influent stream mouth with the second outfall sets up side by side blow mold sets up the one end of bleeder vent.
In an embodiment of the invention, the first heat dissipation side frame is further provided with a plurality of first observation through holes leading to the first heat dissipation pipe, and the second heat dissipation side frame is further provided with a plurality of second observation through holes leading to the second heat dissipation pipe.
In one embodiment of the invention, the first installation runner groove is provided with a first temporary pouring hole communicated with the first temporary pouring hole at one end of the blow mold where the air vent is installed.
In one embodiment of the invention, the first temporary pouring hole forms a counter bore on the surface of the blow mould, and a rubber pad is arranged in the counter bore.
In an embodiment of the present invention, the mold main body is further uniformly distributed with a plurality of heat dissipation air holes in the circumferential direction of the blowing cavity, and the heat dissipation air holes are provided with air inlets above the mold main body.
In an embodiment of the present invention, the heat dissipation air holes converge into a gas collecting ring pipe at the lower end of the mold body, and the gas collecting ring pipe is provided with an exhaust port.
In an embodiment of the invention, the gas cooling device further comprises a gas cooling machine for cooling gas, an output end of the gas cooling machine is connected with the gas inlet, and an input end of the gas cooling machine is connected with the gas outlet.
In one embodiment of the invention, a copper film is attached to the inside of the blowing cavity, and the thickness of the copper film is 1-1.5 mm.
The invention has the beneficial effects that: the environment-friendly heat dissipation type blow molding die provided by the invention can conduct heat transfer and dissipate heat through the additionally arranged first heat dissipation side frame and the first heat dissipation side frame, the first heat dissipation pipe and the second heat dissipation pipe are arranged in the first heat dissipation side frame and the second heat dissipation side frame to realize liquid cooling, so that the cooling rate can be improved, and the recycling of the cooling liquid can avoid the use of disposable cooling objects, so that the environment-friendly performance is improved. Wherein first heat dissipation side frame and second heat dissipation side frame adopt detachable design, also can adopt according to the in service behavior. Furthermore, the copper film provided in the blow-molding chamber can, on the one hand, increase the heat transfer rate and, on the other hand, enable a low-cost repair of defects.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first view angle of an environment-friendly heat dissipation type blow mold according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a second view angle of an environment-friendly heat dissipation type blow mold according to an embodiment of the invention;
FIG. 3 is a sectional view taken along line III-III of FIG. 2;
FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2;
FIG. 5 is a cross-sectional view taken along line V-V of FIG. 2;
fig. 6 is a schematic structural diagram of a first view angle of an environment-friendly heat dissipation type blow mold according to a second embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of area A of FIG. 6;
fig. 8 is a structural schematic diagram of a second view angle of the environment-friendly heat dissipation type blow mold according to the second embodiment of the invention;
fig. 9 is a sectional view in the direction of IX-IX in fig. 8.
Icon: 001-blow molding a mold; 100-a first heat dissipation side frame; 200-a second heat dissipation side frame; 300-a blow molding section; 310-a mold body; 330-access cover; 350-a blow molding cavity; 311-a first side; 313-a second side; 370-first mounting runner channel; 110 — a first viewing through-hole; 390-heat sink vent; 391-air inlet holes; 393-a gas collection ring pipe; 130-a first temporary perfusion orifice; 371 — first outlet; 395-vent.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example one
Referring to fig. 1 to 5, the environment-friendly heat dissipation type blow mold 001 of the present embodiment includes a first heat dissipation side frame 100, a second heat dissipation side frame 200, and a blow molding portion 300.
The blow molding part 300 is used for blow molding products, and the blow molding part 300 can be designed into two detachable petals and can also be specially designed with a take-out port so as to be convenient for taking out the products after molding.
Since the blow molding requires cooling, solidifying and molding the raw material in a molten state, the blow molding part 300 continuously accumulates heat and dissipates the heat, and if the heat dissipation is insufficient, the product may be insufficiently cooled and molded, and even abnormal waste products may occur. Therefore, a first heat dissipation side frame 100 and a second heat dissipation side frame 200 made of metal are respectively arranged on two sides of the blow molding part 300, the mold main body 310 further comprises a first side 311 and a second side 313 which are oppositely arranged, the first heat dissipation side frame 100 is detachably arranged on the first side 311, and the second heat dissipation side frame 200 is detachably arranged on the second side 313; in the present embodiment, the first heat-dissipating side frame 100 and the second heat-dissipating side frame 200 are made of aluminum, which has the advantages of light weight and fast heat dissipation.
Specifically, the blowing part 300 includes a mold main body 310 and an access cover 330, a blowing cavity 350 is provided in the mold main body 310, an access opening is formed at an opening above the mold main body 310 at one end of the blowing cavity 350, the access cover 330 is detachably disposed at the access opening, and a blowing hole is provided in the access cover 330. Blow molding the melt in the blow molding cavity 350 through the blow holes, and forming the vent holes at the upper end of the mold body 310 at the end of the blow molding cavity 350 corresponding to the access opening because the gas cannot be blown into the interior of the molten raw material in the closed space; air is exhausted from the product inside the blowing chamber 350 through the air holes. The air pressure of the inner side and the air pressure of the outer side are approximately balanced in the production process of the product.
In order to protect the blowing cavity 350 and reduce the maintenance cost, a copper film is attached to the inside of the blowing cavity 350, and the thickness of the copper film is 1-1.5 mm. When the copper film is damaged to cause the defects of the model, the model can be repaired in an electroplating replacement mode. And then the flaw can be repaired after simple polishing.
Specifically, a heat dissipation pipe for introducing cooling liquid is further clamped in the heat dissipation side frames arranged on the first side 311 and the second side 313.
The first side 311 is provided with a first channel, the surface of the first heat dissipation side frame 100, which is matched with the first side 311, is provided with a second channel, the first channel and the second channel are matched to form a first installation runner groove 370, and the first heat dissipation pipe is clamped in the first installation runner groove 370; the first heat dissipation pipe has a first inlet 371 and a first outlet 371 opposite to each other.
The first inlet and the first outlet 371 are provided in parallel at one end of the blow mold 001 where a blow hole is provided, and supply and discharge of the coolant are realized by the first inlet and the first outlet 371.
The second side 313 is provided with a third channel, one surface of the second radiating side frame 200, which is matched with the second side 313, is provided with a fourth channel, the third channel and the fourth channel are matched to form a second mounting runner groove, and the second radiating pipe is clamped in the second mounting runner groove; the second radiating pipe is provided with a second inlet and a second outlet which are oppositely arranged.
The second cooling tube and the first cooling tube are symmetrically arranged, namely the second inflow port and the second outflow port are arranged at one end, provided with the air blowing hole, of the blow mold 001 in parallel, and the supply and the discharge of the cooling liquid are achieved through the second inflow port and the second outflow port.
In order to observe whether the first heat dissipating pipe is condensed or not while the first heat dissipating pipe is clamped and further to infer whether the first heat dissipating pipe is excessively cooled to deteriorate the quality of the blow molding inside the first heat dissipating pipe, the first heat dissipating side frame 100 is further provided with a plurality of first observing through holes 110 leading to the first heat dissipating pipe. Accordingly, the second radiating side frame 200 is also provided with a plurality of second observing holes leading to the second radiating pipe.
In this embodiment, the mold body 310 further has a plurality of heat dissipating air holes 390 uniformly distributed in the circumferential direction of the blowing cavity 350, and the heat dissipating air holes 390 are provided with air inlets above the mold body 310. The heat dissipation vent 390 is used to fine-tune the approximate temperature of the blow-molding cavity 350, and the gas heat dissipation through the heat dissipation vent 390 finally maintains the molding temperature in the blow-molding cavity 350 precisely, thereby ensuring the molding quality.
Specifically, this kind of blow mold 001 still includes the gas cooling machine that is used for gaseous cooling, and heat dissipation gas hole 390 converges in gas collection ring pipe 393 at the lower extreme of mould main part 310, and gas collection ring pipe 393 sets up gas vent 395. The gas that enters need enter respectively in order to guarantee that blowing chamber 350 circumference temperature is even, and concentrate the recovery during discharge and can improve recovery efficiency, and the gas inlet is connected to the output of gas cooling machine, and gas vent 395 is connected to the input of gas cooling machine. The gas cooling machine is internally provided with liquid nitrogen for cooling gas, and can rapidly cool the cooling gas. And then recycled.
The environment-friendly heat dissipation type blow molding die 001 provided by the invention can conduct heat transfer and dissipate heat through the additionally arranged first heat dissipation side frame 100 and the first heat dissipation side frame 100, and the first heat dissipation pipe and the second heat dissipation pipe are arranged in the first heat dissipation side frame 100 and the second heat dissipation side frame 200 to realize liquid cooling, so that the cooling rate can be improved, and the recycling of the cooling liquid can avoid the use of disposable cooling objects, so that the environment-friendly performance is improved. The first heat dissipation side frame 100 and the second heat dissipation side frame 200 are detachably designed, and can also be used according to actual use conditions. Furthermore, the copper film provided in the blow mold 350 can, on the one hand, increase the heat transfer rate and, on the other hand, enable a low-cost repair of defects.
Example two
The present embodiment provides an environment-friendly heat dissipation type blow mold 001, please refer to fig. 6 to 9, where the differences between the environment-friendly heat dissipation type blow mold 001 and the environment-friendly heat dissipation type blow mold 001 provided in the first embodiment are:
the first observation through hole 110 is not provided on the first heat dissipation side frame 100, and the second observation through hole is not provided on the second heat dissipation side frame 200. And the edges of the first channel and the second channel are provided with sealing rubber, and the edges of the third channel and the fourth channel are also provided with sealing rubber, so that the first installation runner groove 370 and the second installation runner groove form a closed runner which can be independently communicated with liquid.
A first temporary pouring hole 130 is formed at one end of the first installation runner groove 370, at which the air hole is installed in the blow mold 001. The first temporary pouring hole 130 forms a counter bore in the surface of the blow mold 001, and a rubber pad is arranged in the counter bore. The counter bore can be used for facilitating the insertion of a supply head of cooling liquid into the counter bore for fixing.
Correspondingly, a second temporary filling hole is arranged at one end of the second mounting runner groove, where the air holes are arranged in the blow molding die 001. The second temporary pouring hole forms a counter bore in the surface of the blow molding die 001, and a rubber pad is arranged in the counter bore. The counter bore can be used for facilitating the insertion of a supply head of cooling liquid into the counter bore for fixing.
The coolant is discharged through the ports which are previously fitted to the first and second outlets 371 and 371.
Can lead to liquid cooling temporarily when not setting up first cooling tube and second cooling tube, but because the sealed effect of rubber descends under the effect of difference in temperature, liquid again strikes the sealed face of rubber simultaneously, consequently can not use for a long time.
The environment-friendly heat dissipation type blow molding die 001 provided by the invention can conduct heat transfer and dissipate heat through the additionally arranged first heat dissipation side frame 100 and the first heat dissipation side frame 100, and the first heat dissipation pipe and the second heat dissipation pipe are arranged in the first heat dissipation side frame 100 and the second heat dissipation side frame 200 to realize liquid cooling, so that the cooling rate can be improved, and the recycling of the cooling liquid can avoid the use of disposable cooling objects, so that the environment-friendly performance is improved. The first heat dissipation side frame 100 and the second heat dissipation side frame 200 are detachably designed, and can also be used according to actual use conditions. The first and second installation fluid channel slots 370 and 370, which are designed to be closed, may be used to implement temporary fluid cooling to supplement the temporary damage of the first and second heat dissipation pipes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An environment-friendly heat dissipation type blow molding mold is characterized by comprising a first heat dissipation side frame, a second heat dissipation side frame and a blow molding part;
the blow molding part comprises a mold main body and an access cover, a blow molding cavity is arranged in the mold main body, one end of the blow molding cavity is opened above the mold main body to form an access hole, the access cover is detachably arranged at the access hole, and a blow hole is formed in the access cover;
one end of the blowing cavity corresponding to the access hole forms an air hole at the upper end of the die main body;
the mould main body is also provided with a first side and a second side which are oppositely arranged, the first heat dissipation side frame is detachably arranged on the first side, and the second heat dissipation side frame is detachably arranged on the second side;
the first side is provided with a first channel, one surface of the first radiating side frame, which is matched with the first side, is provided with a second channel, the first channel and the second channel are matched to form a first mounting runner groove, and the first mounting runner groove is used for mounting a first radiating pipe;
the second side is provided with the third channel, the second heat dissipation side frame with second side complex one side is provided with the fourth channel, the third channel with the cooperation of fourth channel forms second installation runner groove, second installation runner groove is used for installing the second cooling tube.
2. The environment-friendly heat dissipation type blow mold according to claim 1, further comprising a first heat dissipation pipe and a second heat dissipation pipe, wherein the first heat dissipation pipe is clamped and arranged in the first installation runner groove, the first heat dissipation pipe is provided with a first inlet and a first outlet which are oppositely arranged, and the first inlet and the first outlet are arranged in parallel at one end of the blow mold where the blowing hole is arranged;
the second cooling tube joint sets up in the second installation runner inslot, the second cooling tube has relative second influent stream mouth and the second outfall that sets up, the second influent stream mouth with the second outfall sets up side by side blow mold sets up the one end of bleeder vent.
3. The environment-friendly heat dissipation type blow mold according to claim 1, wherein the first heat dissipation side frame is further provided with a plurality of first observation through holes leading to the first heat dissipation pipe, and the second heat dissipation side frame is further provided with a plurality of second observation through holes leading to the second heat dissipation pipe.
4. The environment-friendly heat dissipation type blow mold according to claim 1, wherein the first installation runner channel is provided with a first temporary filling hole at one end of the blow mold where the air vent is installed.
5. The environment-friendly heat dissipation type blow mold according to claim 4, wherein the first temporary filling hole forms a counter bore in the surface of the blow mold, and a rubber pad is arranged in the counter bore.
6. The environment-friendly heat dissipation type blow molding mold according to claim 1, wherein the mold body is further uniformly distributed with a plurality of heat dissipation air holes in the circumferential direction of the blow molding cavity, and the heat dissipation air holes are provided with air inlets above the mold body.
7. The environment-friendly heat dissipation type blow mold according to claim 6, wherein the heat dissipation air holes converge into a gas collecting ring pipe at the lower end of the mold body, and the gas collecting ring pipe is provided with an exhaust port.
8. The environment-friendly heat dissipation type blow mold according to claim 7, further comprising a gas cooler for cooling gas, wherein an output end of the gas cooler is connected to the gas inlet, and an input end of the gas cooler is connected to the gas outlet.
9. The environment-friendly heat dissipation type blow mold according to claim 1, wherein a copper film is attached to the inside of the blow mold cavity, and the thickness of the copper film is 1-1.5 mm.
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|---|---|---|---|
| CN201910896027.6A CN110667082B (en) | 2019-09-22 | 2019-09-22 | Environmental protection heat dissipation type blow mold |
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|---|---|---|---|
| CN201910896027.6A CN110667082B (en) | 2019-09-22 | 2019-09-22 | Environmental protection heat dissipation type blow mold |
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| CN110667082B CN110667082B (en) | 2021-02-05 |
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| KR20190013114A (en) * | 2017-07-31 | 2019-02-11 | 동아정밀공업(주) | Parting lineless pet bottle forming equipment |
| CN208469021U (en) * | 2018-07-24 | 2019-02-05 | 卢志亮 | A kind of upper blowing type medicine bottle blow mold |
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