Lightweight barrier bottle production device

Abstract

The utility model relates to the technical field of barrier bottle production, concretely to a kind of lightweight barrier bottle production device, including first mould, second mould and heat dissipation mechanism;First mould is constituted by upper die body and lower die body installed in the bottom end of upper die body, and lower die body middle part is communicated with extension pipe;Second mould and upper die body are all provided with mould cavity on, lower die body is set in the bottom end of mould cavity in upper die body, and second mould and upper die body are driven along the horizontal direction by expansion mechanism and mutually close or far away adjustment;Heat dissipation mechanism includes heat dissipation cavity, liquid inlet pipe and overflow pipe;Heat dissipation cavity is evenly distributed on first mould or second mould.The utility model can surround the outside of two groups of mould cavities by setting corresponding heat dissipation cavity in first mould and second mould respectively, it is convenient to carry out segmented uniform heat dissipation cooling to the lightweight barrier bottle wrapped by blow molding, avoid lightweight barrier bottle high excess temperature shrinkage deformation in the process of transfer, improve processing quality.

Description

Technical Field

[0001] This utility model relates to the field of barrier bottle production technology, specifically a lightweight barrier bottle production device. Background Technology

[0002] Lightweight barrier bottles possess special barrier properties, effectively preventing the exchange of substances between the contents and the external environment, thereby protecting the quality, freshness, and stability of the contents. The base material is polyethylene or polyester. Compared with traditional plastic bottles, barrier plastic bottles not only maintain the freshness and quality of products but also reduce packaging costs and environmental pollution.

[0003] Chinese patent CN119871857A discloses a lightweight plastic bottle production apparatus, relating to the field of plastic bottle blow molding. It includes a fixing unit for fixing the preform, and a mold comprising an upper mold that opens symmetrically from its top to both sides, and a lower mold that moves upwards and closes at its bottom, engaging with the upper mold. A forming boss is provided in the middle of the lower mold, the boss consisting of an upper moving part and a bottom fixing part. This lightweight plastic bottle production apparatus, by placing the preform in the mold and inflating the preform during the downward movement of the core, combined with the air expelled from the mold by an exhaust pipe, allows the preform to slowly expand outwards during downward stretching, resulting in more uniform stress on the preform and enabling the production of thinner plastic bottles.

[0004] However, the above-mentioned publicly disclosed solutions have the following shortcomings: After the preform heated to a certain temperature is rotated to the mold for blow molding, the formed preform moves to the next station under the drive of the fixed unit. Poor heat dissipation of the mold results in insufficient cooling of the formed preform, causing the bottle body to still have a certain high temperature residual heat, which can easily cause shrinkage and deformation during processing, reducing the processing quality. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a lightweight barrier bottle production device.

[0006] The technical solution of this utility model is as follows: A lightweight barrier bottle production device includes a first mold, which is composed of an upper mold body and a lower mold body installed at the bottom of the upper mold body, with an extension tube connected in the middle of the lower mold body; a second mold, both of which are provided with mold cavities, with the lower mold body located at the bottom of the mold cavity in the upper mold body, and the second mold and the upper mold body being adjusted to move closer or further apart in the horizontal direction by a telescopic mechanism; and a heat dissipation mechanism, which includes heat dissipation cavities evenly distributed on the first mold or the second mold, with the heat dissipation cavities surrounding the outside of the mold cavity; an inlet pipe, the inlet end of which is connected to a coolant supply mechanism, and the outlet end of the inlet pipe is connected to a diverter pipe, the other end of which is connected to the inlet end of the heat dissipation cavity; and an overflow pipe, which is installed at the outlet end of the heat dissipation cavity, the other end of which is connected to an outlet pipe, and the outlet end of which is connected to a coolant recovery mechanism.

[0007] Preferably, the lower mold body has a first slot on its side wall, the upper mold body has a second slot symmetrically provided on its side wall, and the second mold body has a plug installed on its side wall, the plug being inserted into the first slot and the second slot.

[0008] Preferably, both the upper mold body and the second mold are provided with mounting seats, and the mounting seats have multiple sets of mounting holes.

[0009] Preferably, the heat dissipation cavities in the first mold and the second mold are both composed of a first cavity, a second cavity and a third cavity, and the heat dissipation cavity in the first mold also includes a fourth cavity disposed on the lower mold body, the fourth cavity being connected to the corresponding first cavity.

[0010] Preferably, the bottom ends of the first cavity, the second cavity, and the third cavity are all equipped with diverter pipes, the inlet ends of the three diverter pipes are all connected to the liquid inlet pipe, and the top ends of the first cavity, the second cavity, and the third cavity are all equipped with overflow pipes, the outlet ends of the three overflow pipes are all connected to the liquid outlet pipe.

[0011] Preferably, multiple sets of support blocks are evenly arranged inside the first cavity, the second cavity, the third cavity, and the fourth cavity.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: By setting corresponding heat dissipation cavities in the first mold and the second mold respectively, the two sets of mold cavities can be surrounded by the outside, which makes it easier to wrap the blow-molded lightweight barrier bottle for segmented and uniform heat dissipation and cooling, avoiding the lightweight barrier bottle shrinking and deforming during the transfer process due to high residual temperature, and improving the processing quality. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention;

[0014] Figure 2 This is a schematic diagram of the first mold structure of this utility model;

[0015] Figure 3 This is a schematic diagram of part A of the present invention;

[0016] Figure 4 This is a schematic diagram of the second mold structure of this utility model.

[0017] Reference numerals in the attached drawings: 1. Upper mold body; 101. Lower mold body; 102. First slot; 103. Second slot; 104. Extension tube; 2. Mold cavity; 3. Fourth cavity; 301. First cavity; 302. Second cavity; 303. Third cavity; 304. Support block; 4. Second mold; 401. Insert block; 5. Diverter pipe; 501. Liquid inlet pipe; 502. Overflow pipe; 503. Liquid outlet pipe; 6. Mounting base. Detailed Implementation

[0018] Example 1

[0019] like Figures 1 to 4 As shown, the present invention proposes a lightweight barrier bottle production device, including a first mold, a second mold 4, and a heat dissipation mechanism. The first mold consists of an upper mold body 1 and a lower mold body 101 installed at the bottom of the upper mold body 1. The lower mold body 101 is integrally formed with the upper mold body 1. An extension tube 104 is connected in the middle of the lower mold body 101 for installing an exhaust pipe in the prior art. Both the second mold 4 and the upper mold body 1 are provided with mold cavities 2. The lower mold body 101 is located at the bottom of the mold cavity 2 in the upper mold body 1. The two sets of mold cavities 2 are used to wrap the bottle preform. A fixing unit is provided between the top of the first mold and the second mold 4. A top core is provided on the fixing unit. The second mold 4 and the upper mold body 1 are driven to move closer or further apart in the horizontal direction by a telescopic mechanism. The fixing unit, the top core, and the telescopic mechanism driving the second mold 4 and the upper mold 1 are all prior art. The specific structure and principle are recorded in detail in the patent with publication number CN119871857A, and will not be repeated here.

[0020] The heat dissipation mechanism includes a heat dissipation cavity, an inlet pipe 501, and an overflow pipe 502. The heat dissipation cavities are evenly distributed on the first mold or the second mold 4, and are arranged to surround the outside of the mold cavity 2. The inlet pipe 501 is connected to the coolant supply mechanism at its input end, and the output end of the inlet pipe 501 is connected to a branch pipe 5. The other end of the branch pipe 5 is connected to the input end of the heat dissipation cavity. The overflow pipe 502 is installed at the output end of the heat dissipation cavity, and the other end of the overflow pipe 502 is connected to the outlet pipe 503. The output end of the outlet pipe 503 is connected to the coolant recovery mechanism.

[0021] Furthermore, the lower mold body 101 has a first slot 102 on its side wall, the upper mold body 1 has a second slot 103 symmetrically provided on its side wall, and the second mold 4 has an insert block 401 installed on its side wall. The insert block 401 is inserted into the first slot 102 and the second slot 103 to facilitate the upper mold body 1 and the second mold 4 to quickly align and clamp together.

[0022] Furthermore, both the upper mold body 1 and the second mold 4 are provided with mounting bases 6, and the mounting bases 6 have multiple sets of mounting holes. The upper mold body 1 or the second mold 4 can be installed with the telescopic mechanism through the mounting holes and bolts.

[0023] In this embodiment, as described in the patent with publication number CN119871857A, the top core is connected to the gas supply mechanism and the telescopic mechanism, and the exhaust pipe installed in the extension tube 104 is connected to the vacuuming mechanism and the telescopic mechanism. When the preform is transferred between the first mold and the second mold 4, the upper mold 1 and the second mold 4 move closer to each other under the action of the telescopic mechanism, so that the insert 401 is inserted into the first slot 102 and the second slot 103 until the second mold 4 and the upper mold 1 are pressed together, encasing the preform. At this time, the preform is small and will not contact the lower mold 101. Gas is supplied to the top core through the gas supply mechanism, and at the same time, the vacuuming mechanism uses the exhaust pipe in the extension tube 104 to extract gas outward. Under the action of the internal and external pressure difference, the preform is uniformly... The preform expands until it fills the space between the two sets of mold cavities 2 and the lower mold body 101. After blow molding, the air inside the preform is first discharged after shaping. Then, coolant is supplied to the inlet pipe 501 through the coolant supply mechanism. The coolant enters the heat dissipation cavity in the first mold and the second mold 4 through the diversion pipe 5. After the coolant fully contacts the blow-molded lightweight barrier bottle to absorb heat, it flows into the outlet pipe 503 through the overflow pipe 502 and finally returns to the coolant recovery mechanism to accumulate. After heat dissipation, the upper mold body 1 is separated from the second mold 4 through the telescopic mechanism. The cooled lightweight barrier bottle is moved to the next station by the fixed unit to avoid shrinkage and deformation of the lightweight barrier bottle during the transfer process due to high residual temperature, thus improving the processing quality.

[0024] Example 2

[0025] like Figures 1 to 3 As shown, the lightweight barrier bottle production device proposed in this utility model, compared with Embodiment 1, has heat dissipation cavities in both the first mold and the second mold 4 composed of a first cavity 301, a second cavity 302 and a third cavity 303. Furthermore, the heat dissipation cavity in the first mold also includes a fourth cavity 3 disposed on the lower mold body 101, and the fourth cavity 3 is connected to the corresponding first cavity 301.

[0026] Furthermore, the bottom ends of the first cavity 301, the second cavity 302, and the third cavity 303 are all equipped with diversion pipes 5, the input ends of the three diversion pipes 5 are all connected to the inlet pipe 501, and the top ends of the first cavity 301, the second cavity 302, and the third cavity 303 are all equipped with overflow pipes 502, the output ends of the three overflow pipes 502 are all connected to the outlet pipe 503.

[0027] Furthermore, multiple sets of support blocks 304 are evenly arranged inside the first cavity 301, the second cavity 302, the third cavity 303, and the fourth cavity 3 to improve the stability of the heat dissipation cavity and prevent collapse during blow molding.

[0028] In this embodiment, the segmented arrangement of the first cavity 301, the second cavity 302, and the third cavity 303 allows the coolant to quickly and evenly contact the outside of the two sets of mold cavities 2, thereby enabling the coolant to fully and evenly contact the shaped lightweight barrier bottle to absorb heat and improve the heat dissipation uniformity of the blow-molded lightweight barrier bottle. The fourth cavity 3 allows for heat dissipation at the bottom of the lightweight barrier bottle, further improving the overall heat dissipation effect of the lightweight barrier bottle.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A lightweight barrier bottle production apparatus, characterized in that, include The first mold consists of an upper mold body (1) and a lower mold body (101) installed at the bottom of the upper mold body (1). An extension tube (104) is connected in the middle of the lower mold body (101). The second mold (4) and the upper mold body (1) are both provided with mold cavities (2). The lower mold body (101) is located at the bottom of the mold cavity (2) in the upper mold body (1). The second mold (4) and the upper mold body (1) are driven by a telescopic mechanism to move closer or further apart from each other in the horizontal direction. and heat dissipation mechanisms, including The heat dissipation cavity is evenly distributed on the first mold or the second mold (4), and the heat dissipation cavity is set to surround the outside of the mold cavity (2); The inlet pipe (501) is connected to the coolant supply mechanism at its input end, and the output end of the inlet pipe (501) is connected to the diverter pipe (5), the other end of the diverter pipe (5) is connected to the input end of the heat dissipation cavity; And an overflow pipe (502) is installed at the output end of the heat dissipation cavity. The other end of the overflow pipe (502) is connected to the liquid outlet pipe (503), and the output end of the liquid outlet pipe (503) is connected to the coolant recovery mechanism.

2. The lightweight barrier bottle production apparatus according to claim 1, characterized in that, The lower mold body (101) has a first slot (102) on its side wall, and the upper mold body (1) has a second slot (103) symmetrically provided on its side wall. The second mold (4) has a plug (401) installed on its side wall. The plug (401) is inserted into the first slot (102) and the second slot (103).

3. The lightweight barrier bottle production apparatus according to claim 1, characterized in that, Both the upper mold body (1) and the second mold (4) are provided with mounting bases (6), and the mounting bases (6) have multiple sets of mounting holes.

4. The lightweight barrier bottle production apparatus according to claim 1, characterized in that, The heat dissipation cavities in the first mold and the second mold (4) are both composed of a first cavity (301), a second cavity (302) and a third cavity (303). The heat dissipation cavity in the first mold also includes a fourth cavity (3) disposed on the lower mold body (101), and the fourth cavity (3) is connected to the corresponding first cavity (301).

5. The lightweight barrier bottle production apparatus according to claim 4, characterized in that, The bottom ends of the first cavity (301), the second cavity (302) and the third cavity (303) are all equipped with diversion pipes (5), the input ends of the three diversion pipes (5) are all connected to the inlet pipe (501), and the top ends of the first cavity (301), the second cavity (302) and the third cavity (303) are all equipped with overflow pipes (502), the output ends of the three overflow pipes (502) are all connected to the outlet pipe (503).

6. The lightweight barrier bottle production apparatus according to claim 5, characterized in that, Multiple sets of support blocks (304) are evenly arranged inside the first cavity (301), the second cavity (302), the third cavity (303) and the fourth cavity (3).

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