CN212312734U

CN212312734U - Blowing forming device for medical bottle blank

Info

Publication number: CN212312734U
Application number: CN202020137107.1U
Authority: CN
Inventors: 曾海林
Original assignee: Xingning Heshui Plastic Industry Co ltd
Current assignee: Xingning Heshui Plastic Industry Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-01-08
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a medicinal bottle embryo blow forming device, include: the upper die, the lower die and the air blowing channel; the upper die is provided with a first cavity, the lower die is provided with a second cavity, the upper die and the lower die are matched, and the first cavity and the second cavity are communicated to form a blowing cavity; the side wall of the blowing cavity is provided with an air inlet, and the blowing channel is communicated with the blowing cavity through the air inlet; the upper die is provided with a first cooling channel, the lower die is provided with a second cooling channel, and the first cooling channel and the second cooling channel are not communicated with the blow molding cavity. Through set up first cooling channel and second cooling channel on last mould and lower mould respectively for last mould and lower mould can obtain quick cooling after the bottle embryo shaping, and then make the bottle embryo can take out fast, and then improved the efficiency of blowing.

Description

Blowing forming device for medical bottle blank

Technical Field

The utility model relates to a blowing technical field especially relates to a medicinal bottle embryo blow molding device.

Background

Blow molding, also known as blow molding, is a rapidly developing and widely used method of processing plastics. The blow molding is that a tubular plastic parison obtained by extruding or injection molding thermoplastic resin is placed in a split mold while the parison is hot, compressed air is introduced into the parison immediately after the mold is closed, so that the plastic parison is blown to cling to the inner wall of the mold, and various hollow products are obtained after cooling and demolding.

The traditional mold cooling adopts natural cooling or a water cooling channel arranged on the outer side for cooling, so that the cooling efficiency is low, the demolding time is delayed, and the blow molding efficiency is low. The medical bottle embryo has smaller thickness, so the medical bottle embryo can be rapidly cooled to rapidly shape the plastic and rapidly take out the plastic, but the cooling effect is poor, the rapid cooling cannot be realized, and the production efficiency of the bottle embryo is lower.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a blow molding apparatus for medical bottle blanks.

A blow molding apparatus for a pharmaceutical bottle preform, comprising: the upper die, the lower die and the air blowing channel; the device also comprises a circulating cooling assembly;

the upper die is provided with a first cavity, the lower die is provided with a second cavity, the upper die and the lower die are matched, and the first cavity and the second cavity are communicated to form a blowing cavity; the side wall of the blowing cavity is provided with an air inlet, and the blowing channel is communicated with the blowing cavity through the air inlet;

the upper die is provided with a first cooling channel, the lower die is provided with a second cooling channel, and the first cooling channel and the second cooling channel are not communicated with the blow molding cavity;

the circulating cooling assembly comprises a first circulating pipe, a second circulating pipe and a circulating pump, one end of the first circulating pipe is communicated with one end of the first cooling channel, the other end of the first cooling channel is communicated with one end of the second cooling channel, the other end of the second cooling channel is communicated with one end of the second circulating pipe, the other end of the first circulating pipe is communicated with the other end of the second circulating pipe through the circulating pump, the circulating cooling assembly further comprises a radiating piece, a radiating channel is arranged in the radiating piece, one end of the radiating channel is communicated with one end, far away from the first circulating pipe, of the first cooling channel, the other end of the radiating channel is communicated with the first end of the circulating pump, and the second end of the circulating pump is communicated with one end, far away from the second cooling channel, of the second circulating pipe.

In one embodiment, the first cooling passage and the second cooling passage are in communication with each other.

In one embodiment, the first cooling passage is disposed proximate an outer side surface of the upper die.

In one embodiment, the second cooling passage is provided near an outer side surface of the lower mold.

In one embodiment, the heat sink is a metal heat sink.

In one embodiment, a plurality of radiating fins are convexly arranged on the outer side surface of the radiating piece.

The utility model has the advantages that: through set up first cooling channel and second cooling channel on last mould and lower mould respectively for last mould and lower mould can obtain quick cooling after the bottle embryo shaping, and then make the bottle embryo can take out fast, and then improved the efficiency of blowing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic cross-sectional view of a blow molding apparatus for forming a medical bottle preform according to an embodiment;

fig. 2 is a schematic cross-sectional view of a heat sink of the blow molding apparatus for a medical bottle preform according to an embodiment.

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 efforts belong to the protection scope of the present invention.

As shown in fig. 1, a blow molding apparatus 10 for a medical bottle blank according to an embodiment of the present invention includes: an upper die 100, a lower die 120, and a blowing passage (not shown); also included is a circulating cooling assembly 300; the upper die 110 is provided with a first cavity, the lower die 120 is provided with a second cavity, the upper die 110 and the lower die 120 are assembled, and the first cavity and the second cavity are communicated to form a blowing cavity 101; an air inlet (not shown) is formed in the side wall of the blowing cavity 101, and the blowing channel is communicated with the blowing cavity 101 through the air inlet; the upper die 110 is provided with a first cooling channel 111, the lower die 120 is provided with a second cooling channel 121, and both the first cooling channel 111 and the second cooling channel 121 are not communicated with the blowing cavity 101; the circulation cooling module 300 includes a first circulation pipe 310, a second circulation pipe 320, and a circulation pump 330, one end of the first circulation pipe 310 communicates with one end of the first cooling passage 111, the other end of the first cooling passage 111 communicates with one end of the second cooling passage 121, the other end of the second cooling passage 121 communicates with one end of the second circulation pipe 320, and the other end of the first circulation pipe 310 communicates with the other end of the second circulation pipe 320 through the circulation pump 330.

Specifically, after the upper mold 110 and the lower mold 120 are closed, the first cavity and the second cavity are closed to form the blowing cavity 101, and the gas in the blowing channel enters the blowing cavity 101 through the gas inlet, so that the thermoplastic in the blowing cavity 101 is extruded under the action of the high-pressure gas to be tightly attached to the side wall of the blowing cavity 101 for molding. The upper die 110 and the lower die 120 are respectively provided with a first cooling channel 111 and a second cooling channel 121, the first cooling channel 111 is isolated from the blow molding cavity 101, the second cooling channel 121 is isolated from the blow molding cavity 101, the first cooling channel 111 and the second cooling channel 121 are used for circulating cooling media, and the cooling media can rapidly absorb heat of the upper die 110 and the lower die 120, so that the upper die 110 and the lower die 120 are rapidly cooled. In one embodiment, the apparatus 10 further comprises a cooling medium. In one embodiment, the cooling medium is a cooling fluid. In one embodiment, the cooling medium is water. Water absorbs the heat of the upper die 110 by flowing through the first cooling channel 111 and flows through the second cooling channel 121 to absorb the heat of the lower die 120, so that the upper die 110 and the lower die 120 can be cooled more quickly, and thus, after the bottle blanks in the upper die 110 and the lower die 120 are molded, the upper die 110 and the lower die 120 can be cooled quickly, so that the bottle blanks can be taken out quickly, and the blow molding efficiency is improved.

In one embodiment, the first cooling channel 111 is disposed near an outer side surface of the upper mold 110. In one embodiment, the second cooling channel 121 is disposed near an outer side surface of the lower mold 120. In the above embodiment, by disposing the first cooling channel 111 and the second cooling channel 121 at positions close to the outer side of the mold, on one hand, the structures of the upper mold 110 and the lower mold 120 can be more stable, and on the other hand, the cooling medium can rapidly take away heat of the mold.

To improve the flow efficiency, in one embodiment, the first cooling channel 111 and the second cooling channel 121 communicate with each other. In this way, the cooling medium can flow through the first cooling passage 111 and the second cooling passage 121 in this order, so that the flow efficiency is high.

In this embodiment, the first circulation tube 310 and the second circulation tube 320 are flexible tubes, so that the first circulation tube 310 and the second circulation tube 320 can be bent, stretched, and deformed, so that the first circulation tube 310 and the second circulation tube 320 can be deformed along with the closing of the upper mold 110 and the lower mold 120, and along with the opening of the upper mold 110 and the lower mold 120, so as to adapt to the movement of the upper mold 110 and the lower mold 120. Specifically, the circulation pump 330 is used to provide power for the circulation of the cooling liquid, for example, the circulation pump 330 pumps the cooling liquid in the first cooling channel 111, so that the cooling liquid in the first cooling channel 111 enters the circulation pump 330 through the first circulation pipe 310, the circulation pump 330 delivers the cooling liquid to the second cooling channel 121 through the second circulation pipe 320, and the cooling liquid in the second cooling channel 121 enters the first cooling channel 111 again, thereby achieving the communication between the first cooling channel 111 and the second cooling channel 121, and achieving the circulation of the cooling liquid in the first cooling channel 111 and the second cooling channel 121. It should be understood that the coolant absorbs heat of the upper and

lower molds

110 and 120 when the coolant circulates in the first and

second cooling passages

111 and 121, and emits heat when the coolant circulates outside the first and

second cooling passages

111 and 121, so that the coolant can efficiently absorb heat of the upper and

lower molds

110 and 120 when entering the first and

second cooling passages

111 and 121 again.

In addition, in this embodiment, the end of the first circulation duct 111 away from the first circulation duct 310 and the end of the second circulation duct 320 away from the second circulation duct 320 may be directly connected, or may be connected through another duct, in one embodiment, the circulation cooling assembly 300 further includes a connection pipe 130, the end of the first circulation duct 111 away from the first circulation duct 310 may be directly connected through the connection pipe 130 and the end of the second circulation duct 320 away from the second circulation duct 320, and the connection pipe 130 is a hose, so that not only the connection between the first cooling duct 111 and the second cooling duct 121 is achieved, but also the connection between the first cooling duct 111 and the second cooling duct 121 can be maintained without being disconnected due to the opening of the upper mold 110 and the lower mold 120.

In order to allow the cooling liquid to release heat when circulating outside the first cooling channel 111 and the second cooling channel 121, in an embodiment, referring to fig. 1 and fig. 2, the circulating cooling assembly 300 further includes a heat dissipation member 340, a heat dissipation channel 341 is formed in the heat dissipation member 340, one end of the heat dissipation channel 341 communicates with one end of the first circulation pipe 310 away from the first cooling channel 111, the other end of the heat dissipation channel 341 communicates with a first end of the circulation pump 330, and a second end of the circulation pump 330 communicates with one end of the second circulation pipe 320 away from the second cooling channel 121.

In this embodiment, the heat dissipation member 340 is a metal heat dissipation member, that is, the heat dissipation member 340 is made of a metal material, and the heat dissipation member 340 made of a metal material has high thermal conductivity, can quickly absorb heat of the cooling liquid, and dissipates to the outside, so that the cooling liquid can be quickly cooled. In one embodiment, the heat dissipation member 340 is made of copper, which has high thermal conductivity and can rapidly absorb heat of the cooling liquid and dissipate the heat to the outside.

In one embodiment, as shown in fig. 1, the number of the heat dissipating members 340 is two, each of the heat dissipating members 340 has a heat dissipating passage 341, the first circulation pipe 310 is communicated with the first end of the circulation pump 330 through one heat dissipating passage 341, and the second end of the circulation pump 330 is communicated with the second circulation pipe 320 through the heat dissipating passage 341 of the other heat dissipating member. Like this, through setting up two radiating pieces for the coolant liquid can both obtain cooling heat dissipation before getting into the circulating pump and after the outflow circulating pump, further improves the radiating efficiency.

In one embodiment, the circulation cooling assembly further includes a liquid storage container (not shown), the liquid storage container is provided with a liquid inlet and a liquid outlet, one end of the first circulation pipe, which is far away from the ground cooling channel, is communicated with the liquid inlet of the liquid storage container through a heat dissipation channel of a heat dissipation member, the liquid outlet of the liquid storage container is communicated with a first end of the circulation pump, and a second end of the circulation pump is communicated with one end of the second circulation pipe, which is far away from the second cooling channel, through a heat dissipation channel of another heat dissipation member. Like this, keep in the coolant liquid through the stock solution container for the coolant liquid circulates more smoothly in the circulative cooling subassembly.

In order to further improve the heat dissipation efficiency of the heat dissipation member 340, in an embodiment, referring to fig. 1 and fig. 2, a plurality of heat dissipation fins 350 are convexly disposed on the outer side surface of the heat dissipation member 340. In this embodiment, the heat dissipation sheet 350 is connected to the heat dissipation sheet 340, the heat dissipation sheet 350 can absorb the heat of the heat dissipation sheet 340 quickly and dissipate the heat to the outside, and the heat dissipation sheet 350 increases the contact area with the air, so that the heat can be dissipated quickly. In this embodiment, the material of heat dissipation member 340 is copper metal, heat dissipation member 340 is cylindric setting, heat dissipation channel 341 is seted up along the axial in the middle part of heat dissipation member 340, the outside surface of heat dissipation member 340 sets up fin 350, the material of fin 350 is copper, and like this, make fin 350 and heat dissipation member 340 all have higher thermal conductivity, make fin 350 and heat dissipation member 340 both can high-efficiently dispel the heat, in addition, fin 350 has increased the area with the air contact, and then make the heat further give off high-efficiently.

In order to increase the contact area with the air and improve the heat dissipation efficiency, in one embodiment, the heat dissipation fins 350 are bent, the cross-sectional shape of the heat dissipation fins 350 is S-shaped, the plurality of heat dissipation fins 350 are equidistantly arranged along the circumferential direction of the surface of the heat dissipation member 340, and the size of each of the heat dissipation fins 350 is equal, so that the contact area with the air is increased, and in addition, the heat dissipation is more uniform. In order to further improve the contact area with the air and the heat dissipation efficiency, in one embodiment, the length of the heat dissipation member 340 is greater than the length of the first circulation tube 310, and the length of the heat dissipation member 340 is greater than the length of the second circulation tube 320, such that the length of the heat dissipation channel is greater than the length of the first circulation tube 310 and the length of the second circulation tube 320, so that the cooling liquid can perform sufficient heat exchange in the heat dissipation channel, and the heat dissipation effect is better.

In order to further improve the heat dissipation efficiency, in an embodiment, the circulation cooling module 300 further includes a spray module and a fan, the spray module is configured to spray water to the outside of the heat dissipation member 340, and the fan module blows air to the outside of the heat dissipation member 340 to further improve the circulation speed of air outside the heat dissipation member 340 and the heat dissipation plate 350, so that water sprayed to the surfaces of the heat dissipation member 340 and the heat dissipation plate 350 by the spray module is rapidly evaporated through rapid flowing of air, the evaporation of water absorbs heat, and further the heat of the heat dissipation member 340 and the heat dissipation plate 350 is rapidly taken away, thereby further effectively improving the heat dissipation efficiency of the heat dissipation member 340 and the heat dissipation plate 350.

In the above embodiment, the first cooling channel 111 and the second cooling channel 121 are respectively formed on the upper die 110 and the lower die 120, so that the upper die 110 and the lower die 120 can be rapidly cooled after the bottle preform is molded, and the bottle preform can be rapidly taken out, thereby improving the blow molding efficiency.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A blow molding device for a medical bottle blank is characterized by comprising: the upper die, the lower die and the air blowing channel; the device also comprises a circulating cooling assembly;

2. The apparatus of claim 1, wherein the first cooling channel and the second cooling channel are in communication with each other.

3. A blow molding apparatus for pharmaceutical bottle blanks as recited in claim 1, wherein the first cooling channel is disposed adjacent to an outer side surface of the upper mold.

4. The apparatus of claim 1, wherein the second cooling channel is disposed adjacent to an outer surface of the lower mold.

5. A blow molding apparatus for a pharmaceutical bottle blank according to claim 1, wherein the heat sink is a metal heat sink.

6. A blow molding apparatus for a medical bottle preform as claimed in claim 5, wherein a plurality of heat dissipating fins are protruded from the outer surface of the heat dissipating member.