Die cavity with multiple cooling water paths

Abstract

A mold cavity with multiple cooling water channels belongs to the technical field of bottle blank molds and comprises a mold body, a bottle blank forming cavity is formed in the mold body in the axial direction, and circumferential reinforcing ribs which surround the mold body in the circumferential direction and are connected end to end are arranged at the two ends of the outer side wall of the mold body respectively. At least two waterway reinforcing ribs which are arranged at intervals are arranged between the two circumferential reinforcing ribs in the circumferential direction of the outer side wall of the die body, the two ends of each waterway reinforcing rib are connected with the two circumferential reinforcing ribs respectively, and an independent cooling waterway is formed between every two adjacent waterway reinforcing ribs. At least two independent cooling water paths are formed on the outer side wall of the die body; the cooling medium flows in the independent cooling water channels, the flow of the cooling medium is shortened by at least half, and meanwhile, water sources are arranged between the cooling water channels respectively, so that the flow of the water sources is increased, the cooling uniformity of the die cavity can be guaranteed to a large extent, and the cooling effect of the die cavity is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bottle blank mould, and specifically relates to a mould cavity with multiple cooling water channels. BACKGROUND

[0002] In the injection blank mould, the mould cavity is used for defining at least part of the bottle body forming of the bottle blank, in order to improve the cooling efficiency of the bottle blank, the outer side wall of the mould cavity is provided with a cooling water channel. However, in the prior art, the cooling water channel of the mould cavity is generally formed by spirally winding one cooling water groove along the outer side wall of the mould cavity. The mould cavity with the structure has the following disadvantages:

[0003] The flow path of the cooling medium flowing along the cooling water channel is relatively long. As the cooling medium flows in the cooling water channel, the temperature of the cooling medium gradually rises. Therefore, when the cooling medium flows through the rear section of the cooling water channel, the cooling effect of the bottle blank corresponding to the rear section of the cooling water channel in the mould cavity is significantly reduced due to the high temperature of the cooling medium itself, which affects the overall cooling effect of the mould cavity and causes insufficient cooling.

[0004] The cooling water channel only has a single water inlet, and the water source is single. Therefore, the water source flow cannot be fully utilized, and the cooling efficiency is relatively low.

[0005] The above-mentioned disadvantages are more obvious in the mould cavity for forming a large-weight bottle blank. When the cooling medium flows to the rear section of the cooling water channel, the cooling effect is poor. TECHNICAL SOLUTION

[0006] In order to overcome at least part of the deficiencies in the prior art, the utility model provides a mould cavity with multiple cooling water channels.

[0007] The mould cavity with multiple cooling water channels comprises a mould body, a bottle blank forming cavity is arranged in the mould body along the axial direction, the outer side wall of the mould body is provided with two circular circumferential reinforcing ribs which are connected end to end and spirally arranged around the mould body, at least two water channel reinforcing ribs are arranged between the two circular circumferential reinforcing ribs and around the outer side wall of the mould body, the two ends of the water channel reinforcing rib are connected to the two circular circumferential reinforcing ribs, an independent cooling water channel is formed between the adjacent two water channel reinforcing ribs, and the outer side wall of the mould body forms at least two independent cooling water channels.

[0008] In the preferred technical solution, each water channel reinforcing rib comprises multiple water channel straight section reinforcing ribs extending along the axial direction of the mould body and at least one water channel ring section reinforcing rib extending around the outer side wall of the mould body.

[0009] The multiple water channel straight section reinforcing ribs are sequentially arranged along the axial direction of the mould body and sequentially and spacedly arranged around the same circumference of the outer side wall of the mould body.

[0010] The first end of the water route straight section reinforcing rib is connected with one of the two circumferential reinforcing ribs, or connected with the last end of the water route straight section reinforcing rib of the last water route reinforcing rib through the water route ring section reinforcing rib; the last end of the water route straight section reinforcing rib is connected with the first end of the next water route straight section reinforcing rib through the water route ring section reinforcing rib, or connected with the other of the two circumferential reinforcing ribs.

[0011] Preferably, two water route straight section reinforcing ribs are arranged in each water route reinforcing rib, and one water route ring section reinforcing rib is arranged; the first end of one of the water route straight section reinforcing ribs is connected with one of the two circumferential reinforcing ribs, and the last end is connected with one end of the water route ring section reinforcing rib; the first end of the other water route straight section reinforcing rib is connected with the other end of the water route ring section reinforcing rib, and the last end is connected with the other of the two circumferential reinforcing ribs.

[0012] Preferably, a plurality of water route straight section reinforcing ribs and a plurality of water route ring section reinforcing ribs are arranged in each water route reinforcing rib; the first end of one of the water route straight section reinforcing ribs is connected with one of the two circumferential reinforcing ribs, and the last end is connected with the first end of the next water route straight section reinforcing rib through the water route ring section reinforcing rib; the first end of the other water route straight section reinforcing rib is connected with the last end of the last water route straight section reinforcing rib through the water route ring section reinforcing rib, and the last end is connected with the other of the two circumferential reinforcing ribs; the first end of the rest of the water route straight section reinforcing ribs is connected with the last end of the last water route straight section reinforcing rib through the water route ring section reinforcing rib, and the last end is connected with the first end of the next water route straight section reinforcing rib through the water route ring section reinforcing rib.

[0013] Further, the water route ring section reinforcing rib has a circumferential spacing A between the water route ring section reinforcing rib and the next water route reinforcing rib in the same circumferential direction.

[0014] Further, the projection length of the circumferential spacing A on the longitudinal section is equal to the spacing between the water route ring section reinforcing rib and the circumferential reinforcing rib, and / or equal to the spacing between the water route ring section reinforcing rib and the axially adjacent water route ring section reinforcing rib.

[0015] Further, the plurality of water route ring section reinforcing ribs in each water route reinforcing rib are uniformly spaced in the mold body axial direction.

[0016] Further, the lengths of the water route straight section reinforcing ribs of the water route reinforcing ribs are equal.

[0017] Further, the areas of the mold body outer side walls covered by the cooling water routes are equal.

[0018] Further, the circumferential reinforcing ribs and the ring reinforcing ribs are provided between the circumferential reinforcing ribs and the ring reinforcing ribs to define the water channel reinforcing ribs, and the circumferential reinforcing ribs, the ring reinforcing ribs and the water channel reinforcing ribs define at least two independent cooling water channels on both sides of the ring reinforcing ribs.

[0019] The utility model discloses beneficial effect is: through setting up at least two reinforcing ribs in the outside wall of the mould body, thereby forming two independent cooling water channels on the outside wall of the mould body, and cooling medium flows in the independent cooling water channel, and the flow of cooling medium is shortened by at least half, and the water source flow is increased between the cooling water channels, thereby can guarantee the uniformity of mould cavity cooling to a large extent, and improve the cooling effect of the mould cavity. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the development structure schematic diagram of example one mould cavity;

[0021] Figure 2 It is the development schematic diagram of one of the specific structures of example two mould cavity;

[0022] Figure 3 It is the development schematic diagram of another specific structure of example two mould cavity. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the following will combine the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described.

[0024] It needs to be explained that if the directionality indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) is involved in the utility model embodiment, then the directionality indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, then the directionality indication also changes accordingly.

[0025] In addition, if the description of "first" or "second" and the like is involved in the utility model embodiment, then the description of "first" or "second" and the like is only for the description purpose, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In addition, the technical schemes of various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical schemes appears contradictory or unachievable, it should be considered that the combination of technical schemes does not exist, and is not within the protection scope required by the utility model. Example 1:

[0026] like Figure 1 As shown, this embodiment discloses a mold cavity with multiple cooling water channels, including a mold body. A preform forming cavity is provided in the mold body along the axial direction. Circumferential reinforcing ribs are respectively provided at both ends of the outer wall of the mold body, which are circumferentially surrounding the mold body and are equal in length. Specifically, the two circumferential reinforcing ribs are a first circumferential reinforcing rib 1 and a second circumferential reinforcing rib 2. At least two spaced water channel reinforcing ribs are provided between the first circumferential reinforcing rib 1 and the second circumferential reinforcing rib 2. Each water channel reinforcing rib is distributed along the circumferential direction of the mold body. The two ends of the water channel reinforcing ribs are respectively connected to the first circumferential reinforcing rib 1 and the second circumferential reinforcing rib 2. The interval area between adjacent water channel reinforcing ribs forms an independent cooling water channel. At least two independent cooling water channels are formed on the outer wall of the mold body, and the area covered by each cooling water channel on the outer wall of the mold body is equal. By setting at least two water channel reinforcing ribs on the outer wall of the mold body, at least two independent cooling water channels are formed on the outer wall of the mold body. The cooling medium flows in the independent cooling water channels, and the flow rate of the cooling medium is shortened by at least half. At the same time, by configuring water sources between each cooling water channel, the water flow rate is increased, thereby ensuring the uniformity of mold cavity cooling to a large extent and improving the cooling effect of the mold cavity.

[0027] In a preferred embodiment, each water channel reinforcing rib includes multiple straight water channel reinforcing ribs extending parallel to the axial direction of the mold body and at least one annular water channel reinforcing rib 32 extending circumferentially along the outer side wall of the mold body; wherein the straight water channel reinforcing ribs include a first straight reinforcing rib 31 and a second straight reinforcing rib 33; the first straight reinforcing rib 31, the annular water channel reinforcing rib 32 and the second straight reinforcing rib 33 are connected sequentially, and the first straight reinforcing rib 31, the annular water channel reinforcing rib 32 and the second straight reinforcing rib 33 between adjacent water channel reinforcing ribs are distributed at intervals along the circumferential direction of the mold body.

[0028] In the embodiment, each water channel reinforcing rib is provided with a first straight section reinforcing rib 31, a water channel ring section reinforcing rib 32 and a second straight section reinforcing rib 33. One end of the first straight section reinforcing rib 31 is connected to the first circumferential reinforcing rib 1, the other end of the first straight section reinforcing rib 31 is connected to one end of the water channel ring section reinforcing rib 32, the other end of the water channel ring section reinforcing rib 32 is connected to one end of the second straight section reinforcing rib 33, and the other end of the second straight section reinforcing rib 33 is connected to the second circumferential reinforcing rib 2. The water channel ring section reinforcing ribs 32 of adjacent water channel reinforcing ribs have a circumferential spacing A, thereby forming a water running port 41. The first circumferential reinforcing rib 1, the water channel ring section reinforcing rib 32 and the first straight section reinforcing rib 31 of the adjacent water channel reinforcing rib form a water inlet port 42 and a water inlet groove 43. The second circumferential reinforcing rib 2, the water channel ring section reinforcing rib 32 and the second straight section reinforcing rib 33 of the adjacent water channel reinforcing rib form a water outlet groove 44 and a water outlet port 45. The water inlet groove 43 and the water outlet groove 44 are connected by the water running port 41, and the flow directions of the cooling medium in the water inlet groove 43 and the water running port 41 are different, and the included angle between the two flow directions is 90°. Similarly, the flow directions of the cooling medium in the water running port 41 and the water outlet groove 44 are also different, and the included angle between the two flow directions is 90°. In the embodiment, the water running port 41 is formed in the cooling water channel, so that the flow direction of the cooling medium changes when the cooling medium flows in the cooling water channel, thereby slowing down the flow speed of the cooling medium and making the cooling more sufficient.

[0029] As a preferred embodiment, the projection length of the circumferential spacing A on the longitudinal section, the spacing between the first circumferential reinforcing rib 1 and the water channel ring section reinforcing rib 32, and the spacing between the second circumferential reinforcing rib 2 and the water channel ring section reinforcing rib 32 are equal. The flow cross-sectional size between the water running port 41, the water inlet groove 43 and the water outlet groove 44 is equal.

[0030] As a preferred embodiment, the lengths of the first straight section reinforcing rib 31 and the second straight section reinforcing rib 33 are equal. Embodiment two:

[0031] As Figure 2 and Figure 3As shown, the specific implementation of the embodiment is substantially the same as that of Embodiment One, with the difference being that each water channel reinforcing rib comprises a first straight section reinforcing rib 31, at least two water channel ring section reinforcing ribs 32, and at least two second straight section reinforcing ribs 33, one end of the first straight section reinforcing rib 31 is connected to the first circumferential reinforcing rib 1, and the other end is connected to the first water channel ring section reinforcing rib 32; the water channel ring section reinforcing ribs 32 and the second straight section reinforcing ribs 33 are connected alternately; the last second straight section reinforcing rib 33 is connected to the second circumferential reinforcing rib 2. The first straight section reinforcing ribs 31 of the water channel reinforcing ribs are distributed along the circumference of the mold body at intervals, the water channel ring section reinforcing ribs 32 and the second straight section reinforcing ribs 33 of the water channel reinforcing ribs are respectively distributed along the circumference of the mold body at intervals according to the connection order, and the water channel ring section reinforcing ribs 32 between adjacent water channel reinforcing ribs have a circumferential spacing A according to the connection order, thereby forming water running openings 41, and at least two water running openings 41 are formed in each cooling water channel.

[0032] In the embodiment, the water channel ring section reinforcing ribs 32 and the second straight section reinforcing ribs 33 of each water channel reinforcing rib are provided with n, n≥2; according to the connection order of the water channel ring section reinforcing ribs 32, each water channel reinforcing rib comprises a first ring section reinforcing rib, a second ring section reinforcing rib,..., and an n-th ring section reinforcing rib; according to the connection order of the second straight section reinforcing ribs 33, each water channel reinforcing rib comprises a first straight section reinforcing rib, a second straight section reinforcing rib,..., and an n-th straight section reinforcing rib; the first ring section reinforcing rib, the first straight section reinforcing rib, the second ring section reinforcing rib, the second straight section reinforcing rib,..., the n-th ring section reinforcing rib, and the n-th straight section reinforcing rib are connected in turn; between adjacent water channel reinforcing ribs, the first circumferential reinforcing rib 1, the first straight section reinforcing rib 31 of one water channel reinforcing rib, the first straight section reinforcing rib 31 of another water channel reinforcing rib, and the first ring section reinforcing rib of the other water channel reinforcing rib form a water inlet 42 and a water inlet groove 43; the first ring section reinforcing rib of one water channel reinforcing rib, the first straight section reinforcing rib of one water channel reinforcing rib, the second ring section reinforcing rib of another water channel reinforcing rib, and the first straight section reinforcing rib of the other water channel reinforcing rib form a circulation groove 46;...; the n-1th ring section reinforcing rib of one water channel reinforcing rib, the n-1th straight section reinforcing rib of one water channel reinforcing rib, the n-th ring section reinforcing rib of another water channel reinforcing rib, and the n-th straight section reinforcing rib of the other water channel reinforcing rib form a circulation groove 46; the n-th ring section reinforcing rib of one water channel reinforcing rib, the n-th straight section reinforcing rib of one water channel reinforcing rib, the second circumferential reinforcing rib 2, and the n-th straight section reinforcing rib of the other water channel reinforcing rib form a water outlet groove 44 and a water outlet 45. The water inlet groove 43 and the circulation groove 46, the circulation groove 46 and the circulation groove 46, and the circulation groove 46 and the water outlet groove 44 are respectively connected by water running openings 41.

[0033] As a preferred embodiment, the projection length of the circumferential spacing A on the longitudinal section, the length of the first straight section reinforcing rib 31 and the length of the second straight section reinforcing rib 33 are equal, so that the flow cross-sectional sizes of the water run-off port 41, the water inlet groove 43, the circulation groove 46 and the water outlet groove 44 are equal. Example three:

[0034] The specific implementation of the embodiment is substantially the same as that of the first embodiment, and the difference is that a ring reinforcing rib is further arranged between the circumferential reinforcing ribs, the circumferential reinforcing ribs and the ring reinforcing rib define water channel reinforcing ribs, and the circumferential reinforcing ribs, the ring reinforcing rib and the water channel reinforcing ribs define at least two independent cooling water channels on both sides of the ring reinforcing rib.

[0035] The above only describes the preferred embodiments of the present application, and any technical solutions that achieve the same purpose by substantially the same means are within the scope of protection of the present application.

Claims

1. A multi-cooling water path mold cavity comprising a mold body, a bottle preform molding cavity being provided in the mold body in an axial direction, characterized in that: The outer side wall of the die body is provided with two circumferential reinforcing ribs at both ends of the outer side wall, the two circumferential reinforcing ribs are connected end to end and surround the die body in the circumferential direction, at least two water channel reinforcing ribs are arranged in the circumferential direction of the outer side wall of the die body, the two ends of the water channel reinforcing rib are connected to the two circumferential reinforcing ribs, and an independent cooling water channel is formed between two adjacent water channel reinforcing ribs, and the outer side wall of the die body forms at least two independent cooling water channels; each water channel reinforcing rib comprises at least one water channel ring segment reinforcing rib extending in the circumferential direction of the outer side wall of the die body, and the plurality of water channel ring segment reinforcing ribs in each water channel reinforcing rib are uniformly distributed in the axial direction of the die body; and the areas of the die body covered by the cooling water channels are equal.

2. The mold cavity of claim 1, wherein: Each water channel reinforcing rib comprises a plurality of water channel straight segment reinforcing ribs extending in the axial direction of the die body. The plurality of water channel straight segment reinforcing ribs are arranged in sequence in the axial direction of the die body and are arranged in sequence and spaced apart in the same circumferential direction of the outer side wall of the die body. The leading end of the water channel straight segment reinforcing rib is connected to one of the two circumferential reinforcing ribs or is connected to the trailing end of the previous water channel straight segment reinforcing rib through the water channel ring segment reinforcing rib, and the trailing end of the water channel straight segment reinforcing rib is connected to the leading end of the next water channel straight segment reinforcing rib through the water channel ring segment reinforcing rib or is connected to the other of the two circumferential reinforcing ribs.

3. The multi-cooling water path mold cavity according to claim 2, wherein: The water channel straight segment reinforcing rib in each water channel reinforcing rib is provided with two water channel straight segment reinforcing ribs and one water channel ring segment reinforcing rib, the leading end of one of the water channel straight segment reinforcing ribs is connected to one of the two circumferential reinforcing ribs, and the trailing end is connected to one end of the water channel ring segment reinforcing rib, the leading end of the other water channel straight segment reinforcing rib is connected to the other end of the water channel ring segment reinforcing rib, and the trailing end is connected to the other of the two circumferential reinforcing ribs.

4. The multi-cooling water channel mold cavity of claim 2, wherein: The water channel straight segment reinforcing rib in each water channel reinforcing rib is provided with a plurality of water channel straight segment reinforcing ribs and a plurality of water channel ring segment reinforcing ribs, the leading end of one of the water channel straight segment reinforcing ribs is connected to one of the two circumferential reinforcing ribs, and the trailing end is connected to the leading end of the next water channel straight segment reinforcing rib through the water channel ring segment reinforcing rib, the leading end of the other water channel straight segment reinforcing rib is connected to the trailing end of the previous water channel straight segment reinforcing rib through the water channel ring segment reinforcing rib, and the trailing end is connected to the other of the two circumferential reinforcing ribs. The leading end of the remaining water channel straight segment reinforcing rib is connected to the trailing end of the previous water channel straight segment reinforcing rib through the water channel ring segment reinforcing rib, and the trailing end is connected to the leading end of the next water channel straight segment reinforcing rib through the water channel ring segment reinforcing rib.

5. A multi-cooling water channel mold cavity according to any one of claims 3 or 4, characterized in that: The water channel ring segment reinforcing rib has a circumferential spacing A between the water channel ring segment reinforcing rib and the water channel reinforcing rib in the same circumferential direction.

6. The multi-cooling water path mold cavity according to claim 5, wherein: The projection length of the circumferential spacing A on the longitudinal section is equal to the spacing between the water channel ring segment reinforcing rib and the adjacent circumferential reinforcing rib and / or equal to the spacing between the water channel ring segment reinforcing rib and the axially adjacent water channel ring segment reinforcing rib.

7. The multi-cooling water channel mold cavity of claim 2, wherein: The lengths of the water channel straight segment reinforcing ribs of each water channel reinforcing rib are equal.

8. The multi-cooling water channel mold cavity of claim 1, wherein: The circumferential reinforcing ribs and the ring reinforcing ribs are provided with water channels, and the circumferential reinforcing ribs, the ring reinforcing ribs and the water channels define at least two independent cooling water channels on both sides of the ring reinforcing ribs.

Images