Full-automatic bottle blowing machine special for cosmetic bottles

Abstract

The utility model discloses a special full-automatic bottle blowing machine for cosmetic bottles, which comprises a heating device and a bottle blowing device which are sequentially arranged along the conveying direction of bottle blanks, the bottle blowing device comprises a bottle blowing mold, and the bottle blowing mold comprises two mold plates which are arranged on mold closing surfaces and can be closed to form a mold cavity; the full-automatic bottle blowing machine special for the cosmetic bottles further comprises a heat exchange medium circulation loop which sequentially flows through the heat conduction head, the liquid storage tank and the preheating device. The heat conduction head is arranged on the non-mold-closing surface of the mold plate, and the preheating device is arranged at the feeding end of the baking device; according to the utility model, not only can the product cooling and shaping be promoted and the production effect be improved, but also the recovered product waste heat can be utilized to preheat the bottle preform, so that the energy consumption is effectively reduced and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing machines, in particular to a full-automatic bottle blowing machine dedicated to cosmetic bottles. Background Art

[0002] Cosmetic bottles are mainly used to load cosmetics. In order to enhance the product value of cosmetics, higher requirements are also placed on the quality of cosmetic bottles. Existing cosmetic bottles are mainly manufactured by bottle blowing machines, which include a conveying mechanism, a heating mechanism, a bottle blowing mold and a bottle blowing part. The preform is conveyed by the conveying mechanism, heated to a set temperature by the heating mechanism, and enters the bottle blowing mold. After the mold is closed, the bottle blowing part enters the mold cavity and extends into the preform to release high-pressure gas. The preform expands and contacts the mold cavity to complete product molding. Since there is residual heat in the molded product and the product is soft as a whole, the product needs to be cooled in the mold and the mold can only be opened after the temperature drops to the set value, which affects the production efficiency. When the product is not cooled sufficiently, the container is deformed and obvious shrinkage marks are left on the bottle body, which affects the overall appearance quality of the cosmetic bottle. In addition, the residual heat of the product is not fully utilized, resulting in energy waste, which is not conducive to large-scale production. Utility Model Content

[0003] The utility model aims to provide a fully automatic bottle blowing machine for cosmetic bottles, which can promote product cooling and shaping, and can recover product waste heat to preheat the bottle embryo, thereby reducing energy consumption.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A fully automatic bottle blowing machine for cosmetic bottles, comprising a drying device and a bottle blowing device arranged in sequence along the conveying direction of the preform, the bottle blowing device comprising a bottle blowing mold, the bottle blowing mold comprising two templates provided with a closable mold cavity on the mating surface; the fully automatic bottle blowing machine for cosmetic bottles also comprises a heat exchange medium circulation loop: flowing through a heat conducting head, a liquid storage tank and a preheating device in sequence; the heat conducting head is arranged on the non-mold-joining surface of the template, and the preheating device is arranged at the feeding end of the drying device.

[0006] By setting up a heat exchange medium circulation loop, the heat exchange medium circulates in the loop, and the template is cooled by the heat conductive head to improve the cooling and shaping efficiency of the product. The waste heat is recovered by the reflux heat exchange medium, and the reflux heat exchange medium is transported to the preheating device as a heat source to preheat the bottle blank, so that the bottle blank can be quickly heated to the set temperature, thereby reducing energy consumption.

[0007] On the basis of the above technical solution, the present invention can be improved as follows:

[0008] Furthermore, a medium flow channel through which a heat exchange medium can flow is formed inside the heat conductive head, and a liquid inlet and a liquid outlet connected to the medium flow channel are arranged on the heat conductive head;

[0009] A partition is provided in the liquid storage tank, and the partition divides the internal space of the liquid storage tank into a first accommodating chamber for loading a cold heat exchange medium and a second accommodating chamber for loading a hot heat exchange medium;

[0010] The liquid storage box is provided with a first liquid supply hole and a second liquid supply hole communicating with the first accommodating chamber, and a first reflux hole and a second reflux hole communicating with the second accommodating chamber;

[0011] The preheating device comprises a heat storage cover and a heat conducting pipe arranged inside the heat storage cover, wherein the heat conducting pipe is provided with a liquid inlet head and a liquid outlet head;

[0012] The liquid inlet of the heat conductive head is connected to the first liquid supply hole of the liquid storage tank through a pipeline, the liquid outlet of the heat conductive head is connected to the second reflux hole of the liquid storage tank through a pipeline, the second liquid supply hole of the liquid storage tank is connected to the liquid inlet head of the heat conductive pipe through a pipeline, and the liquid outlet head of the heat conductive pipe is connected to the first reflux hole of the liquid storage tank through a pipeline.

[0013] Furthermore, the first liquid supply hole and the second liquid supply hole on the liquid storage tank are located at the bottom of the liquid storage tank, and the first reflux hole and the second reflux hole are located at the top of the liquid storage tank.

[0014] By setting two liquid supply holes at the bottom of the liquid outlet tank and two reflux holes at the top of the liquid storage tank, the heat exchange medium can flow back from the top of the liquid storage tank to the inside of the liquid storage tank, and be transported from the bottom wall of the liquid storage tank to the outside of the liquid storage tank, forming a liquid head inside the liquid storage tank, thereby promoting the flow of heat exchange medium.

[0015] Furthermore, a first boosting pump is arranged at the bottom of the first accommodating chamber of the liquid storage tank, and a water outlet end of the first boosting pump is connected to the first liquid supply hole through a pipe. A second boosting pump is arranged at the bottom of the second accommodating chamber, and a water outlet end of the second boosting pump is connected to the second liquid supply hole through a pipe.

[0016] Furthermore, the medium flow channel inside the heat conducting head is arranged in an S-shaped circuitous manner.

[0017] Furthermore, the heat conducting pipes are arranged in an S-shaped circuitous manner along the inner wall of the heat storage cover.

[0018] Furthermore, the heating device is an infrared heater, and the infrared heater is arranged on both sides of the conveying track of the conveying device.

[0019] Compared with the prior art, the utility model technology has the following advantages:

[0020] The utility model provides a heat exchange medium circulation loop, in which the heat exchange medium circulates, and recovers the waste heat absorbed by the template from the product in a heat exchange manner, which can not only quickly reduce the template temperature and promote product cooling and shaping, but also use the heat exchange medium after heat exchange as a heat source for the preheating device to complete the preheating of the bottle embryo, effectively reducing energy consumption and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 It is a structural schematic diagram of a fully automatic bottle blowing machine for cosmetic bottles in an embodiment.

[0023] Markings on the accompanying drawings: 1-frame, 2-first template, 3-second template, 4-push arm, 5-heat conduction head, 5a-medium flow channel, 6-liquid storage tank, 6a-first accommodating chamber, 6b-second accommodating chamber, 6c-first liquid supply hole, 6d-second liquid supply hole, 6e-first reflux hole, 6f-second reflux hole, 7-partition, 8-heat storage cover, 9-heat conduction pipe, 10-first booster pump, 11-second booster pump, 12-electric transmission chain, 13-infrared heater, 14-electric gas rod.

[0024] Attached Figure 1 The direction of the middle arrow is the circulation flow direction of the heat exchange medium in the heat exchange medium circulation loop. DETAILED DESCRIPTION

[0025] The following is a further description of the specific embodiments of the present invention in conjunction with the accompanying drawings. The description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] See also Figure 1 The utility model relates to a fully automatic bottle blowing machine for cosmetic bottles, which comprises a frame 1 and a conveyor 2 arranged on the frame 1, wherein one end of the conveyor 2 is a loading end and the other end is a discharging end. A heating zone and a bottle blowing zone are sequentially arranged between the loading end and the discharging end of the conveyor 2 along the conveying direction. The conveyor 2 is provided with a drying device in the heating zone, and a transmission device is provided with a bottle blowing device in the bottle blowing zone. Driven by the conveyor 2, the preforms are conveyed from the loading end of the conveyor 2 to the discharging end along the conveying path, and are sequentially heated by the drying device and blow-molded by the bottle blowing device. The formed products are collected by a bottle collecting device arranged at the discharging end of the conveyor 2.

[0027] The bottle blowing device includes an openable and closable bottle blowing mold and a retractable bottle blowing part; a mold cavity for molding products is formed inside the bottle blowing mold, and the bottle blowing mold is provided with a bottle blowing port connected to the mold cavity; when the mold is closed, the bottle blowing port is connected to the bottle preform bottle mouth located inside the bottle blowing mold, and the bottle blowing part extends into the bottle preform through the bottle blowing port to release gas, so that the bottle preform expands from the inside out and fits tightly against the cavity wall of the mold cavity, and after cooling and shaping, the mold is opened to remove the product.

[0028] Specifically, the bottle blowing mold includes two templates arranged opposite to each other, and the two templates are respectively provided with a clamping surface on the inner side for being fitted together when the molds are closed; for the convenience of description, the two templates are respectively named as the first template 2 and the second template 3, and the first template 2 is provided with a first half cavity on the clamping surface, and a first half opening connected to the first half cavity is opened on the top of the first template 2; the second template 3 is provided with a second half cavity on the clamping surface, and a second half opening connected to the second half cavity is opened on the top of the second template 3; when the molds are closed, the first half cavity and the second half cavity are closed to form a mold cavity including the bottle preform, and the first half opening and the second half opening are closed to form a bottle blowing port; the bottle blowing part is an electric gas rod 14, and the electric gas rod 14 extends from the bottom of the bottle blowing mold into the interior of the bottle preform through the bottle blowing port, and releases high-pressure gas to cause the bottle preform to expand and form.

[0029] In this embodiment, the first template 2 is a fixed template, the second template 3 is a movable template, the first template 2 is fixedly mounted on the frame 1, the second template 3 is movably mounted on the frame 1, and a push arm 4 is provided on the outer side of the second template 3. The push arm 4 is used to push the second template 3 to move in the direction of the second template 3 to complete the mold closing; it should be noted that the push arm 4 in this embodiment is a pneumatic push arm in the prior art, and an electric push arm can also be used according to actual needs.

[0030] Since there is still residual heat in the product after blowing the bottle, the overall rigidity of the product is insufficient, and it is easily deformed by external force after the mold is opened. In order to avoid deformation, the blowing mold needs to remain in a closed state after blowing the bottle. The inner side of the template absorbs the residual heat of the product, and the outer side of the template dissipates the absorbed heat. The mold can only be opened and removed when the temperature of the product drops to the set value, affecting production efficiency. For this reason, the fully automatic bottle blowing machine for cosmetic bottles also includes a heat exchange medium circulation loop, which circulates the heat exchange medium in the heat exchange medium circulation loop to cool the template, and uses the heat exchanged heat exchange medium as a heat source to preheat the bottle embryo, effectively saving energy.

[0031] The heat exchange medium circulation loop includes a heat conducting head 5, a liquid storage tank 6 and a preheating device, which are interconnected through external pipes to form a heat exchange medium circulation loop; two heat conducting heads 5 are provided, and the two heat conducting heads 5 are respectively installed on the outer sides of the two templates, the preheating device is arranged at the feed end of the drying device, and the liquid storage tank 6 is installed at the bottom of the frame 1, and a first accommodating chamber 6a and a second accommodating chamber 6b are formed inside the liquid storage tank 6, the first accommodating chamber 6a is used to load cold heat exchange medium, and the second accommodating chamber 6b is used to load hot heat exchange medium.

[0032] During implementation, the cold heat exchange medium in the first accommodation chamber 6a of the liquid storage tank 6 is transported to the heat transfer head 5. After the heat transfer head 5 absorbs heat, the hot heat exchange medium flows back to the second accommodation chamber 6b of the liquid storage tank 6. The hot heat exchange medium is transported to the preheating device, and after the preheating device releases heat, it flows back to the first accommodation chamber 6a of the liquid storage tank 6. Such a circular transport of the heat exchange medium can not only circulate and cool the template to improve the cooling and shaping efficiency of the product, but also preheat the bottle blank, so that the drying device can quickly heat the bottle blank to the set temperature, thereby reducing energy consumption.

[0033] It should be noted that, in this embodiment, the thermal head 4 is installed on the outer surface of the template, and can also be installed on the top or bottom surface of the template according to actual needs, that is, the thermal head 4 can be installed on any non-mold surface of the template.

[0034] Specifically, the heat conducting head 5 is a copper rectangular plate. According to actual needs, the heat conducting head 5 can also be made of other heat conducting materials; the inner side of the heat conducting head 5 is in contact with the outer side of the template, and the inner side of the heat conducting head 5 is a straight and smooth heat conducting surface; a medium flow channel 5a through which a heat exchange medium can flow is formed inside the heat conducting head 5, and a liquid inlet and a liquid outlet are provided on the heat conducting head 5. The liquid inlet is connected to one end of the heat dissipation channel, and the liquid outlet is connected to the other end of the heat dissipation channel; the liquid storage tank 6 is a rectangular box, and the liquid storage tank 6 is provided with a partition 7, which divides the internal space of the liquid storage tank 6 into a first accommodating chamber 6a and a second accommodating chamber 6b; the liquid storage tank 6 is provided with a first liquid supply hole 6c and a second liquid supply hole 6d connected to the first accommodating chamber 6a, and a first reflux hole 6e and a second reflux hole 6f connected to the second accommodating chamber 6b; the preheating device includes a heat storage cover 8 arranged at the feeding end of the drying device, and a heat conduction pipe 9 arranged inside the heat storage cover 8, and the heat conduction pipe 9 is provided with a liquid inlet head and a liquid outlet head.

[0035] During assembly, the liquid inlet of the heat conducting head 5 is connected to the first liquid supply hole 6c of the liquid storage tank 6 through a pipeline, the liquid outlet of the heat conducting head 5 is connected to the second return hole 6f of the liquid storage tank 6 through a pipeline, the second liquid supply hole 6d of the liquid storage tank 6 is connected to the liquid inlet head of the heat conducting pipe 9 through a pipeline, and the liquid outlet head of the heat conducting pipe 9 is connected to the first return hole 6e of the liquid storage tank 6 through a pipeline, so that the heat conducting head 5, the liquid storage tank 6 and the heat conducting pipe 9 form a medium circulation loop; the heat exchange medium is transported to the heat exchange medium through the medium circulation loop. The absorbing heat transfer head 5 completes heat exchange, and the heat transfer medium after heat exchange flows back to the second accommodation chamber 6b of the liquid storage tank 6, and is then transported to the heat transfer pipe 9 as a heat source to release heat to complete the preheating of the bottle embryo. The heat transfer medium after heat release flows back to the first accommodation chamber 6a of the liquid storage tank 6 and is transported to the heat transfer head 5 again. In this way, the heat transfer medium is circulated and transported, and the residual heat of the product absorbed by the template is collected in time, which promotes the cooling and shaping of the product, and the collected residual heat is used to preheat the bottle embryo, thereby reducing the energy consumption of bottle blowing and reducing the production cost.

[0036] The first liquid supply hole 6c and the second liquid supply hole 6d on the liquid storage tank 6 are located at the bottom of the liquid storage tank 6, and the first reflux hole 6e and the second reflux hole 6f are located at the top of the liquid storage tank 6. The heat exchange medium can reflux from the top of the liquid storage tank 6 to the inside of the liquid storage tank 6, and be transported from the bottom wall of the liquid storage tank 6 to the outside of the liquid storage tank 6, so as to form a liquid head difference inside the liquid storage tank 6 and promote the flow of the heat exchange medium. In order to further accelerate the flow of the heat exchange medium, a booster is provided inside the liquid storage tank 6, and the booster is used to pressurize the refluxed heat exchange medium and then transport it to the outside of the liquid storage tank 6.

[0037] Specifically, the boosting component in this embodiment includes a first boosting pump 10 arranged at the bottom of the first accommodating chamber 6a of the liquid storage tank 6, and a second boosting pump 11 arranged at the bottom of the second accommodating chamber 6b; the water outlet end of the first boosting pump 10 is connected to the first liquid supply hole 6c through a pipeline, and the water outlet end of the second boosting pump 11 is connected to the second liquid supply hole 6d through a pipeline; when supplying liquid, the cold heat exchange medium enters the first boosting pump 10 from the water inlet end of the first boosting pump 10, and after being pressurized, it is transported from the water outlet end of the first boosting pump 10 to the heat transfer head 5 outside the liquid storage tank 6, and the hot heat exchange medium enters the second boosting pump 11 from the water inlet end of the second boosting pump 11, and after being pressurized, it is transported from the water outlet end of the second boosting pump 11 to the heat transfer pipe 9 outside the liquid storage tank 6.

[0038] In this embodiment, the medium flow channel 5a inside the heat conducting head 5 is arranged in an S-shaped circuitous manner to extend the flow path of the cold heat exchange medium, improve the heat absorption efficiency, promptly remove the heat on the heat conducting head 5, and further accelerate the cooling of the product.

[0039] In this embodiment, the heat storage cover 8 is a rectangular cover structure, the bottom of the heat storage cover 8 forms a cover opening, and the opposite side walls of the heat storage cover 8 are respectively provided with a feed port and a discharge port. The heat storage cover 8 is installed on the frame, and the discharge port of the heat storage cover 8 is connected to the feed end of the drying device. The bottle blank enters the heat storage cover 8 from the feed port of the heat storage cover 8 through the conveying device 2, and after the residual heat of the heat conducting pipe 9 arranged on the inner wall of the heat storage cover 8, it moves out from the discharge end of the heat storage cover 8 and enters the drying device from the feed end of the drying device to complete heating. The heat released by the heat conducting pipe 9 can be concentrated by the heat storage cover 8 to preheat the bottle blank entering the heat storage cover 8, thereby reducing heat dissipation loss and improving the preheating effect.

[0040] In this embodiment, the heat conducting pipes 9 are arranged in an S-shaped circuitous manner along the inner wall of the heat storage cover 8, so as to extend the flow path of the heat exchange medium, fully release the heat, and improve the preheating effect.

[0041] It should be noted that the heat exchange medium in this embodiment is water, and other heat exchange media can also be used according to actual needs; the conveying device 2 in this embodiment is an electric conveyor chain 12 in the prior art, and the electric conveyor chain 12 is provided with a plurality of bottle carriers for mounting bottle preforms, and the bottle carriers are provided with through holes for the electric gas rods 14 to pass through, so that the electric gas rods 14 can extend into the bottle preforms located in the bottle blowing mold through the through holes; the heating device in this embodiment is an infrared heater 13 in the prior art, and the infrared heaters 13 are arranged on both sides of the conveying track of the electric conveyor chain 12, and the preheated bottle preforms are heated from the side by the infrared heaters 13.

[0042] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A fully automatic bottle blowing machine for cosmetic bottles, comprising a heating device and a bottle blowing device arranged in sequence along the conveying direction of the preform, the bottle blowing device comprising a bottle blowing mold, the bottle blowing mold comprising two mold plates with a closable mold cavity on the mating surface; characterized in that: The fully automatic bottle blowing machine for cosmetic bottles also includes a heat exchange medium circulation loop: it flows through a heat conduction head, a liquid storage tank and a preheating device in sequence; the heat conduction head is arranged on the non-mold surface of the template, and the preheating device is arranged at the feed end of the drying device.

2. The fully automatic bottle blowing machine for cosmetic bottles according to claim 1, characterized in that: A medium flow channel is formed inside the heat conducting head for circulating a heat exchange medium, and a liquid inlet and a liquid outlet connected to the medium flow channel are arranged on the heat conducting head; A partition is provided in the liquid storage tank, and the partition divides the internal space of the liquid storage tank into a first accommodating chamber for loading a cold heat exchange medium and a second accommodating chamber for loading a hot heat exchange medium; The liquid storage box is provided with a first liquid supply hole and a second liquid supply hole communicating with the first accommodating chamber, and a first reflux hole and a second reflux hole communicating with the second accommodating chamber; The preheating device comprises a heat storage cover and a heat conducting pipe arranged inside the heat storage cover, wherein the heat conducting pipe is provided with a liquid inlet head and a liquid outlet head; The liquid inlet of the heat conductive head is connected to the first liquid supply hole of the liquid storage tank through a pipeline, the liquid outlet of the heat conductive head is connected to the second reflux hole of the liquid storage tank through a pipeline, the second liquid supply hole of the liquid storage tank is connected to the liquid inlet head of the heat conductive pipe through a pipeline, and the liquid outlet head of the heat conductive pipe is connected to the first reflux hole of the liquid storage tank through a pipeline.

3. The fully automatic bottle blowing machine for cosmetic bottles according to claim 2, characterized in that: The first liquid supply hole and the second liquid supply hole on the liquid storage tank are located at the bottom of the liquid storage tank, and the first reflux hole and the second reflux hole are located at the top of the liquid storage tank.

4. The fully automatic bottle blowing machine for cosmetic bottles according to claim 3, characterized in that: A first booster pump is arranged at the bottom of the first accommodating chamber of the liquid storage tank, and a water outlet end of the first booster pump is connected to the first liquid supply hole through a pipeline. A second booster pump is arranged at the bottom of the second accommodating chamber, and a water outlet end of the second booster pump is connected to the second liquid supply hole through a pipeline.

5. The fully automatic bottle blowing machine for cosmetic bottles according to claim 4, characterized in that: The medium flow channel inside the heat conducting head is arranged in an S-shaped circuitous manner.

6. The fully automatic bottle blowing machine for cosmetic bottles according to claim 2, characterized in that: The heat conducting pipes are arranged in an S-shaped circuitous manner along the inner wall of the heat storage cover.

7. The fully automatic bottle blowing machine for cosmetic bottles according to any one of claims 1 to 6, characterized in that: The heating device is an infrared heater, and the infrared heater is arranged on both sides of the conveying track of the conveying device.

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