Uniformly-cooled mold cavity and injection mold

Abstract

The utility model discloses a uniformly cooled mould cavity and a blank injection mould, and belongs to the technical field of blank injection moulds, the uniformly cooled mould cavity comprises a mould body, a bottle blank forming cavity is arranged in the mould body, a reversing reinforcing rib group is arranged on the outer side wall of the mould body, and the reversing reinforcing rib group comprises a reversing straight section reinforcing rib, a first reversing ring section reinforcing rib and two second reversing ring section reinforcing ribs; by means of the cooling water tank structure defined by the reversing reinforcing rib sets on the outer side wall of the die body, in the flowing process of a cooling medium in the cooling water tank, the first circumferential distance can conduct radial reversing on flowing of the cooling medium, the flowing speed of the cooling medium can be reduced easily, and the cooling capacity of the cooling medium is guaranteed; and meanwhile, the flowing dead zone of the cooling medium is reduced, uniform flowing of the cooling medium is ensured, and the difference of cooling effects is reduced, so that the cooling efficiency and the cooling effect of the mold cavity are improved, the forming period of a bottle blank is shortened, and the quality of the injection-molded bottle blank is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of injection blank mould, specifically relates to a mould cavity of uniform cooling and injection blank mould. BACKGROUND

[0002] In the injection blank mould, the mould cavity is used for defining at least partial bottle body forming of the bottle blank, in order to improve the cooling effect of the mould cavity to the bottle blank, the outer side wall of the mould cavity is provided with a cooling water tank. The existing mould cavity cooling water tank structure generally adopts the waterway structure of one-way flow between the water inlet position and the water outlet position, and has the following disadvantages:

[0003] 1. The cooling water of one-way flow has relatively large flow velocity, shortens the contact time of the cooling water and the mould cavity, and further affects the cooling efficiency and the cooling effect;

[0004] 2. The cooling water of one-way flow is easy to produce flow dead zone, causes the cooling efficiency of the flow dead zone cooling water to be relatively low, causes the cooling difference with the surrounding area, affects the overall cooling efficiency and the cooling effect, and even causes the bottle blank to produce local defects. INVENTION CONTENTS

[0005] In order to overcome at least part of the deficiencies in the prior art, the utility model provides a mould cavity and injection blank mould of uniform cooling.

[0006] The utility model provides a technical scheme as follows: a mould cavity of uniform cooling, including mould body, the mould body inside is equipped with bottle blank forming cavity, the mould body outer side wall is equipped with reversing reinforcement rib group, the reversing reinforcement rib group includes reversing straight section reinforcement rib, first reversing ring section reinforcement rib and two second reversing ring section reinforcement ribs;

[0007] The first reversing ring section reinforcement rib is connected with one side of the middle part of the reversing straight section reinforcement rib at the first end, and the last end of the first reversing ring section reinforcement rib extends to the other side of the middle part of the reversing straight section reinforcement rib along the circumferential direction and has the first circumferential interval.

[0008] The two ends of the reversing straight section reinforcement rib are connected with the last ends of the two second reversing ring section reinforcement ribs respectively, and the first ends of the two second reversing ring section reinforcement ribs extend along the circumferential direction respectively.

[0009] Further, one of the second reversing ring section reinforcement ribs is connected at the first end, and the first end of the other second reversing ring section reinforcement rib has the second circumferential interval with one side of the reversing straight section reinforcement rib.

[0010] Further, the outer side wall of the mould body is further provided with a guide reinforcement rib group, and the guide reinforcement rib group includes a guide straight section reinforcement rib and a guide ring section reinforcement rib.

[0011] The first end of another of the second reversing ring segment reinforcing ribs is connected to the end of the guide ring segment reinforcing rib through the guide straight segment reinforcing rib; the first end of the guide ring segment reinforcing rib and the guide straight segment reinforcing rib have a third circumferential spacing therebetween.

[0012] Further, the first end of one of the second reversing ring segment reinforcing ribs and one side of one end of the reversing straight segment reinforcing rib have a fourth circumferential spacing therebetween; the first end of another of the second reversing ring segment reinforcing ribs and one side of the reversing straight segment reinforcing rib have a second circumferential spacing therebetween.

[0013] Further, the outer side wall of the mold body is further provided with a connecting reinforcing rib group, which comprises a connecting straight segment reinforcing rib and a connecting ring segment reinforcing rib.

[0014] The first end of the connecting ring segment reinforcing rib is connected to the first end of one of the second reversing ring segment reinforcing ribs through the connecting straight segment reinforcing rib, and the end of the connecting ring segment reinforcing rib is connected to the first end of the connecting ring segment reinforcing rib along the circumferential ring of the outer side wall of the mold body.

[0015] Further, the outer side wall of the mold body is further provided with another guide reinforcing rib group and a connecting reinforcing rib group, and the connecting reinforcing rib group, the guide reinforcing rib group and the reversing reinforcing rib group are connected in sequence.

[0016] Further, the guide reinforcing rib group comprises a guide straight segment reinforcing rib and a guide ring segment reinforcing rib; the connecting reinforcing rib group comprises a connecting straight segment reinforcing rib and a connecting ring segment reinforcing rib.

[0017] The end of the guide ring segment reinforcing rib is connected to the first end of one of the second reversing ring segment reinforcing ribs through the guide straight segment reinforcing rib, and the first end of the guide ring segment reinforcing rib and the guide straight segment reinforcing rib have a fifth circumferential spacing therebetween; the end of the connecting ring segment reinforcing rib is connected to the first end of the guide ring segment reinforcing rib through the connecting straight segment reinforcing rib, and the first end of the connecting ring segment reinforcing rib is connected to the end of the connecting ring segment reinforcing rib along the circumferential ring.

[0018] Further, the guide reinforcing rib group is provided with multiple groups, and in adjacent guide reinforcing rib groups, the end of the guide ring segment reinforcing rib is connected to the first end of the guide ring segment reinforcing rib of the previous guide reinforcing rib group through the guide straight segment reinforcing rib, and the first end of the guide ring segment reinforcing rib of the guide reinforcing rib group and the guide straight segment reinforcing rib have a circumferential spacing therebetween.

[0019] In addition, the two second reversing ring segment reinforcing ribs are connected end to end respectively.

[0020] The utility model provides another technical scheme provided by the utility model: a kind of injection blank mould, including dynamic half mould and fixed half mould, the dynamic half mould and the fixed half mould are configured to limit bottle blank forming cavity, the fixed half mould includes mould cavity plate, several mould cavities are installed on the mould cavity plate, the mould cavity is the mould cavity of any one described above.

[0021] The utility model has the advantages that: the cooling water tank structure is formed in the outer side wall of the mold body by the reversing reinforcing rib group, the first circumferential spacing can reverse the flow of the cooling medium radially during the flow of the cooling medium in the cooling water tank, which is beneficial to reduce the flow speed of the cooling medium and ensure the cooling capacity of the cooling medium; At the same time, the flow dead zone of the cooling medium is reduced, the cooling medium can flow uniformly, the difference in cooling effect is reduced, the cooling efficiency and cooling effect of the mold cavity are improved, and the molding cycle of the bottle blank is shortened, and the quality of the injection molded bottle blank is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the mold cavity of embodiment one.

[0023] Figure 2 It is a structure schematic view of the mold cavity of embodiment two.

[0024] Figure 3 It is a structure schematic view of the mold cavity of embodiment three.

[0025] Figure 4 It is a structure schematic view of the mold cavity of embodiment four.

[0026] Figure 5 It is a structure schematic view of the mold cavity of embodiment five. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme of the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments.

[0028] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model. Example 1:

[0030] like Figure 1 As shown, this embodiment discloses a uniformly cooled mold cavity, including a mold body 1. The mold body 1 has a preform forming cavity inside. The outer wall of the mold body 1 is provided with an outwardly protruding reversing reinforcing rib group. The reversing reinforcing rib group includes a reversing straight section reinforcing rib 21, a first reversing ring section reinforcing rib 22, and two second reversing ring section reinforcing ribs 23. The reversing straight section reinforcing rib 21 extends in a direction parallel to the axis of the mold body 1, and the first reversing ring section reinforcing rib 22 and the two second reversing ring section reinforcing ribs 23 extend circumferentially along the outer wall of the mold body 1, respectively.

[0031] The first end of the first reversing ring segment reinforcing rib 22 is connected to one side of the middle of the reversing straight segment reinforcing rib 21, and the end of the first reversing ring segment reinforcing rib 22 extends circumferentially to have a first circumferential distance A between it and the other side of the middle of the reversing straight segment reinforcing rib 21; the first end of one of the second reversing ring segment reinforcing ribs 23 is connected to one side of one end of the reversing straight segment reinforcing rib 21, and the end of one of the second reversing ring segment reinforcing ribs 23 extends circumferentially and connects to the other side of one end of the reversing straight segment reinforcing rib 21; the first end of another second reversing ring segment reinforcing rib 23 is connected to one side of the other end of the reversing straight segment reinforcing rib 21, and the end of another second reversing ring segment reinforcing rib 23 extends circumferentially and connects to the other side of the other end of the reversing straight segment reinforcing rib 21.

[0032] In this embodiment, the reversing straight section reinforcing rib 21, the first reversing ring section reinforcing rib 22, and one of the second reversing ring section reinforcing ribs 23 form an inlet and an inflow ring groove of a cooling water tank on the outer side wall of the mold body 1; the reversing straight section reinforcing rib 21, the first reversing ring section reinforcing rib 22, and the other second reversing ring section reinforcing rib 23 form an outlet and an outlet ring groove of a cooling water tank on the outer side wall of the mold body 1. One end of the inflow ring groove is connected to the inlet, the other end of the inflow ring groove is connected to one end of the outlet ring groove through the first circumferential spacing A, and the other end of the outlet ring groove is connected to the outlet. The cooling water tank structure formed by the reversing reinforcing ribs on the outer wall of the mold body 1 allows the first circumferential spacing A to reverse the radial flow of the cooling medium during its flow within the cooling water tank. This helps to reduce the flow velocity of the cooling medium and ensure its cooling capacity. At the same time, it reduces the dead zone of the cooling medium, ensuring uniform flow and reducing differences in cooling effect. This improves the cooling efficiency and effect of the mold cavity, thereby shortening the molding cycle of the preform and improving the quality of the injection-molded preform.

[0033] Preferably, in order to further improve the cooling uniformity of the mold cavity, the length of the first circumferential spacing A, the spacing between the first reversing ring segment reinforcing rib 22 and any one of the second reversing ring segment reinforcing ribs 23 are equal, so that the flow cross-section size of each position of the cooling water tank is equal and the cooling is uniform at each position of the mold cavity. Example 2:

[0034] like Figure 2 As shown, this embodiment discloses a uniformly cooled mold cavity, including a mold body 1. The mold body 1 has a preform forming cavity inside. The outer wall of the mold body 1 is provided with an outwardly protruding reversing reinforcing rib group. The reversing reinforcing rib group includes a reversing straight section reinforcing rib 21, a first reversing ring section reinforcing rib 22, and two second reversing ring section reinforcing ribs 23. The reversing straight section reinforcing rib 21 extends in a direction parallel to the axis of the mold body 1, and the first reversing ring section reinforcing rib 22 and the two second reversing ring section reinforcing ribs 23 extend circumferentially along the outer wall of the mold body 1, respectively.

[0035] The first end of the first reversing ring segment reinforcing rib 22 is connected to one side of the middle of the reversing straight segment reinforcing rib 21, and the end of the first reversing ring segment reinforcing rib 22 extends circumferentially to have a first circumferential distance A between it and the other side of the middle of the reversing straight segment reinforcing rib 21; the first end of one of the second reversing ring segment reinforcing ribs 23 is connected to one side of one end of the reversing straight segment reinforcing rib 21, and the end of one of the second reversing ring segment reinforcing ribs 23 extends circumferentially and connects to the other side of one end of the reversing straight segment reinforcing rib 21; the first end of another second reversing ring segment reinforcing rib 23 has a second circumferential distance B between it and one side of the other end of the reversing straight segment reinforcing rib 21, and the end of another second reversing ring segment reinforcing rib 23 extends circumferentially and connects to the other side of the other end of the reversing straight segment reinforcing rib 21.

[0036] In this embodiment, the reversing straight section reinforcing rib 21, the first reversing ring section reinforcing rib 22, and one of the second reversing ring section reinforcing ribs 23 form an inlet and an inflow ring groove of a cooling water tank on the outer wall of the mold body 1; the reversing straight section reinforcing rib 21, the first reversing ring section reinforcing rib 22, and the other second reversing ring section reinforcing rib 23 form an outlet ring groove of a cooling water tank on the outer wall of the mold body 1; the second circumferential spacing B is the outlet of the cooling water tank; one end of the inflow ring groove is connected to the inlet, the other end of the inflow ring groove is connected to one end of the outlet ring groove through the first circumferential spacing A, and the other end of the outlet ring groove is connected to the outlet.

[0037] Preferably, in order to further improve the cooling uniformity of the mold cavity, the length of the first circumferential spacing A, the spacing between the first reversing ring segment reinforcing rib 22 and any one of the second reversing ring segment reinforcing ribs 23, and the length of the second circumferential spacing B are all equal, so that the flow cross-section size of each position of the cooling water tank is equal and the cooling is uniform in each position of the mold cavity. Example 3:

[0038] like Figure 3 As shown, this embodiment discloses a uniformly cooled mold cavity, including a mold body 1. The mold body 1 has a preform forming cavity inside, and the outer side wall of the mold body 1 is provided with outwardly protruding reversing reinforcing ribs and guide reinforcing ribs.

[0039] When a set of guide reinforcing ribs is provided on the outer side wall of the mold body 1:

[0040] The reversing reinforcing rib group includes a reversing straight section reinforcing rib 21, a first reversing ring section reinforcing rib 22, and two second reversing ring section reinforcing ribs 23; the guiding reinforcing rib group includes a guiding straight section reinforcing rib 31 and a guiding ring section reinforcing rib 32; the reversing straight section reinforcing rib 21 and the guiding straight section reinforcing rib 31 extend in a direction parallel to the axis of the mold body 1, and the first reversing ring section reinforcing rib 22, the two second reversing ring section reinforcing ribs 23 and the guiding ring section reinforcing rib 32 extend in a circumferential direction along the outer side wall of the mold body 1;

[0041] The first end of the first reversing ring section reinforcing rib 22 is connected with one side of the middle part of the reversing straight section reinforcing rib 21, and the last end extends along the circumference to the other side of the middle part of the reversing straight section reinforcing rib 21 with a first circumferential interval A; the first end of one of the second reversing ring section reinforcing ribs 23 is connected with one side of one end of the reversing straight section reinforcing rib 21, and the last end of one of the second reversing ring section reinforcing ribs 23 extends along the circumference and is connected with the other side of one end of the reversing straight section reinforcing rib 21; the first end of the other of the second reversing ring section reinforcing ribs 23 is connected with one side of the other end of the reversing straight section reinforcing rib 21 with a second circumferential interval B, and is connected with the last end of the guide ring section reinforcing rib 32 through the guide straight section reinforcing rib 31; the last end of the other of the second reversing ring section reinforcing ribs 23 extends along the circumference and is connected with the other side of the other end of the reversing straight section reinforcing rib 21; the first end of the guide ring section reinforcing rib 32 is connected with the guide straight section reinforcing rib 31 with a third circumferential interval C, and the third circumferential interval C is separated from the last end of the guide ring section reinforcing rib 32 by the guide straight section reinforcing rib 31.

[0042] In the embodiment, the reversing straight section reinforcing rib 21, the first reversing ring section reinforcing rib 22 and one of the second reversing ring section reinforcing ribs 23 form a flow inlet and a flow-in ring groove of the cooling water groove on the outer side wall of the mold body 1; the reversing straight section reinforcing rib 21, the first reversing ring section reinforcing rib 22 and the other of the second reversing ring section reinforcing ribs 23 form a guide ring groove of the cooling water groove on the outer side wall of the mold body 1; the guide straight section reinforcing rib 31, the guide ring section reinforcing rib 32 and the other of the second reversing ring section reinforcing ribs 23 form a flow-out ring groove of the cooling water groove on the outer side wall of the mold body 1; the third circumferential interval C is a flow outlet of the cooling water groove; one end of the flow-in ring groove is connected with the flow inlet, the other end of the flow-in ring groove is communicated with one end of the guide groove through the first circumferential interval A, the other end of the guide groove is communicated with one end of the flow-out ring groove through the second circumferential interval B, and the other end of the flow-out ring groove is connected with the flow outlet.

[0043] Preferably, in order to further improve the cooling uniformity of the mold cavity, the length of the first circumferential interval A, the interval between the first reversing ring section reinforcing rib 22 and any one of the second reversing ring section reinforcing ribs 23, the length of the second circumferential interval B, the interval between the guide ring section reinforcing rib 32 and the second reversing ring section reinforcing rib 23, and the length of the third circumferential interval C are equal, so that the flow cross-sectional area of the cooling water groove at each position is equal, and the cooling of the mold cavity at each position is uniform.

[0044] When the outer side wall of the mold body 1 is provided with multiple groups of guide reinforcing ribs:

[0045] The first group of guide reinforcing ribs is connected in the manner described above when a group of guide reinforcing ribs is set on the outer side wall of the mold body 1. The remaining guide reinforcing rib groups are connected sequentially in a direction parallel to the axis of the mold body 1. The connection structure between adjacent guide reinforcing rib groups is as follows: the end of the guide ring reinforcing rib 32 of the guide reinforcing rib group is connected to the beginning end of the guide ring reinforcing rib 32 of the previous guide reinforcing rib group through the guide straight reinforcing rib 31. There is a circumferential distance between the beginning end of the guide ring reinforcing rib 32 and the guide straight reinforcing rib 31 of the guide reinforcing rib group. Example 4:

[0046] like Figure 4 As shown, this embodiment discloses a uniformly cooled mold cavity, including a mold body 1. The mold body 1 has a preform forming cavity inside, and the outer side wall of the mold body 1 is provided with outwardly protruding reversing reinforcing ribs, guide reinforcing ribs and connecting reinforcing ribs.

[0047] The outer side wall of the mold body 1 is provided with a set of guide reinforcing ribs and a set of connecting reinforcing ribs, and the connecting reinforcing ribs, the reversing reinforcing ribs and the guide reinforcing ribs are connected in sequence.

[0048] The reversing stiffener group includes a reversing straight section stiffener 21, a first reversing ring section stiffener 22, and two second reversing ring section stiffeners 23; the guide stiffener group includes a guide straight section stiffener 31 and a guide ring section stiffener 32; the connecting stiffener group includes a connecting straight section stiffener 41 and a connecting ring section stiffener 42.

[0049] The reversing straight section reinforcing rib 21, the guide straight section reinforcing rib 31 and the connecting straight section reinforcing rib 41 extend in a direction parallel to the axis of the mold body 1, and the first reversing ring section reinforcing rib 22, the two second reversing ring section reinforcing ribs 23, the guide ring section reinforcing rib 32 and the connecting ring section reinforcing rib 42 extend in a circumferential direction along the outer side wall of the mold body 1.

[0050] The first end of the first reversing ring segment reinforcing rib 22 is connected with one side of the middle part of the reversing straight segment reinforcing rib 21, and the last end of the first reversing ring segment reinforcing rib 22 extends along the circumference to the other side of the middle part of the reversing straight segment reinforcing rib 21 with a first circumferential interval A; the first end of one of the second reversing ring segment reinforcing ribs 23 is connected with one side of one end of the reversing straight segment reinforcing rib 21 with a fourth circumferential interval D, and the last end of one of the second reversing ring segment reinforcing ribs 23 extends along the circumference to be connected with the other side of one end of the reversing straight segment reinforcing rib 21; the first end of the connecting ring segment reinforcing rib 42 is connected with the first end of one of the second reversing ring segment reinforcing ribs 23 through the connecting straight segment reinforcing rib 41, and the last end of the connecting ring segment reinforcing rib 42 is connected with the first end of the connecting ring segment reinforcing rib 42 along the outer side wall of the mold body 1; the first end of the other of the second reversing ring segment reinforcing ribs 23 is connected with one side of the other end of the reversing straight segment reinforcing rib 21 with a second circumferential interval B, and the last end of the other of the second reversing ring segment reinforcing ribs 23 extends along the circumference to be connected with the other side of the other end of the reversing straight segment reinforcing rib 21; the first end of the guiding ring segment reinforcing rib 32 is connected with one side of the other end of the guiding straight segment reinforcing rib 31 with a third circumferential interval C, and the last end of the guiding ring segment reinforcing rib 32 extends along the circumference to be connected with the first end of the other of the second reversing ring segment reinforcing ribs 23 through the guiding straight segment reinforcing rib 31.

[0051] In the embodiment, the connecting straight segment reinforcing rib 41, the connecting ring segment reinforcing rib 42 and one of the second reversing ring segment reinforcing ribs 23 form the inflow port and the inflow ring groove of the cooling water tank on the outer side wall of the mold body 1; the reversing straight segment reinforcing rib 21, the first reversing ring segment reinforcing rib 22 and one of the second reversing ring segment reinforcing ribs 23 form one of the guide ring grooves of the cooling water tank on the outer side wall of the mold body 1; the reversing straight segment reinforcing rib 21, the first reversing ring segment reinforcing rib 22 and the other of the second reversing ring segment reinforcing ribs 23 form the other of the guide ring grooves of the cooling water tank on the outer side wall of the mold body 1; the guiding straight segment reinforcing rib 31, the guiding ring segment reinforcing rib 32 and the other of the second reversing ring segment reinforcing ribs 23 form the outflow ring groove of the cooling water tank on the outer side wall of the mold body 1; the third circumferential interval C is the outflow port of the cooling water tank; one end of the inflow ring groove is connected with the inflow port, the other end of the inflow ring groove is communicated with one end of one of the guide ring grooves through the fourth circumferential interval D, one end of one of the guide ring grooves is communicated with one end of the other of the guide ring grooves through the first circumferential interval A, the other end of the other of the guide ring grooves is communicated with one end of the outflow ring groove through the second circumferential interval B, and the other end of the outflow ring groove is connected with the outflow port.

[0052] Preferably, in order to further improve the cooling uniformity of the mold cavity, the length of the first circumferential spacing A, the spacing between the first reversing ring segment reinforcing rib 22 and any of the second reversing ring segment reinforcing ribs 23, the length of the second circumferential spacing B, the spacing between the guide ring segment reinforcing rib 32 and the adjacent second reversing ring segment reinforcing ribs 23, the length of the third circumferential spacing C, the spacing between the connecting ring segment reinforcing rib 42 and the adjacent second reversing ring segment reinforcing ribs 23, and the length of the fourth circumferential spacing D are all equal, so that the flow cross-section size of each position of the cooling water tank is equal and the cooling of each position of the mold cavity is uniform.

[0053] Of course, the outer wall of the mold body 1 can also be arranged in a way that the connecting reinforcing rib group, the guide reinforcing rib group and the reversing reinforcing rib group are connected in sequence. The specific connection structure is as follows: the end of the guide ring reinforcing rib 32 is connected to the beginning of one of the second reversing ring reinforcing ribs 23 through the guide straight reinforcing rib 31. There is a fifth circumferential distance E between the beginning of the guide ring reinforcing rib 32 and the guide straight reinforcing rib 31. The beginning and end of the guide ring reinforcing rib 32 are distributed on both sides of the guide straight reinforcing rib 31. The end of the connecting ring reinforcing rib 42 is connected to the beginning of the guide ring reinforcing rib 32 through the connecting straight reinforcing rib 41. The beginning of the connecting ring reinforcing rib 42 extends circumferentially and connects to the end of the connecting ring reinforcing rib 42. The connection of the reversing reinforcing rib group is the same as above, and will not be described in detail here. Example 5:

[0054] like Figure 5 As shown, this embodiment discloses a uniformly cooled mold cavity, including a mold body 1. The mold body 1 has a preform forming cavity inside, and the outer side wall of the mold body 1 is provided with outwardly protruding reversing reinforcing ribs, guide reinforcing ribs and connecting reinforcing ribs.

[0055] The outer side wall of the mold body 1 is provided with two sets of guide reinforcing ribs and one set of connecting reinforcing ribs. The connecting reinforcing ribs, one set of guide reinforcing ribs, the reversing reinforcing ribs and the other set of guide reinforcing ribs are connected in sequence.

[0056] The reversing stiffener group includes a reversing straight section stiffener 21, a first reversing ring section stiffener 22, and two second reversing ring section stiffeners 23; the guide stiffener group includes a guide straight section stiffener 31 and a guide ring section stiffener 32; the connecting stiffener group includes a connecting straight section stiffener 41 and a connecting ring section stiffener 42.

[0057] The reversing straight section reinforcing rib 21, the guide straight section reinforcing rib 31 and the connecting straight section reinforcing rib 41 extend in a direction parallel to the axis of the mold body 1, and the first reversing ring section reinforcing rib 22, the two second reversing ring section reinforcing ribs 23, the guide ring section reinforcing rib 32 and the connecting ring section reinforcing rib 42 extend in a circumferential direction along the outer side wall of the mold body 1.

[0058] The first end of the first reversing ring segment reinforcing rib 22 is connected with one side of the middle part of the reversing straight segment reinforcing rib 21, and the last end extends along the circumference to the other side of the middle part of the reversing straight segment reinforcing rib 21 with a first circumferential interval A; the first end of one of the second reversing ring segment reinforcing ribs 23 is connected with one side of one end of the reversing straight segment reinforcing rib 21 with a fourth circumferential interval D, and is connected with the last end of the guide straight segment reinforcing rib 31 and the guide ring segment reinforcing rib 32 of one of the guide reinforcing rib groups, and the last end of one of the second reversing ring segment reinforcing ribs 23 extends along the circumference to the other side of one end of the reversing straight segment reinforcing rib 21; the first end of the guide ring segment reinforcing rib 32 of one of the guide reinforcing rib groups is connected with the guide straight segment reinforcing rib 31 with a fifth circumferential interval E, and is connected with the connecting straight segment reinforcing rib 41 and the connecting ring segment reinforcing rib 42; the first end and the last end of the connecting ring segment reinforcing rib 42 are connected; the first end of the other of the second reversing ring segment reinforcing ribs 23 is connected with one side of the other end of the reversing straight segment reinforcing rib 21 with a second circumferential interval B, and is connected with the last end of the guide straight segment reinforcing rib 31 and the guide ring segment reinforcing rib 32 of the other of the guide reinforcing rib groups, and the last end of the other of the second reversing ring segment reinforcing ribs 23 extends along the circumference and is connected with the other side of the other end of the reversing straight segment reinforcing rib 21; the first end of the guide ring segment reinforcing rib 32 of the other of the guide reinforcing rib groups is connected with the guide straight segment reinforcing rib 31 with a third circumferential interval C, and the last end of the guide ring segment reinforcing rib 32 is distributed on both sides of the guide straight segment reinforcing rib 31.

[0059] In the embodiment, the connecting straight segment reinforcing rib 41, the connecting ring segment reinforcing rib 42 and the guide ring segment reinforcing rib 32 of one of the guide reinforcing rib groups form the flow inlet and the inflow ring groove of the cooling water groove on the outer side wall of the mold body 1; the guide ring segment reinforcing rib 32 and the guide straight segment reinforcing rib 31 of one of the guide reinforcing rib groups and one of the first reversing ring segment reinforcing ribs 22 form one of the guide ring grooves of the cooling water groove on the outer side wall of the mold body 1; the reversing straight segment reinforcing rib 21, the first reversing ring segment reinforcing rib 22 and one of the second reversing ring segment reinforcing ribs 23 form another guide ring groove of the cooling water groove on the outer side wall of the mold body 1; the reversing straight segment reinforcing rib 21, the first reversing ring segment reinforcing rib 22 and the other of the second reversing ring segment reinforcing ribs 23 form still another guide ring groove of the cooling water groove on the outer side wall of the mold body 1; the guide straight segment reinforcing rib 31 and the guide ring segment reinforcing rib 32 of the other of the guide reinforcing rib groups and the other of the second reversing ring segment reinforcing ribs 23 form the outflow ring groove of the cooling water groove on the outer side wall of the mold body 1; and the third circumferential interval C is the flow outlet of the cooling water groove.

[0060] One end of the inflow ring groove is connected with the inflow port, and the other end of the inflow ring groove is communicated with one end of one of the guide ring grooves through a fourth circumferential spacing D, one end of the other guide ring groove is communicated with one end of the other guide ring groove through a fifth circumferential spacing E, one end of the other guide ring groove is communicated with one end of the other guide ring groove through the first circumferential spacing A, one end of the other guide ring groove is communicated with one end of the outflow ring groove through the second circumferential spacing B, and the other end of the outflow ring groove is connected with the outflow port.

[0061] Preferably, in order to further improve the uniformity of the cooling of the mold cavity, the length of the first circumferential spacing A, the spacing between the first reversing ring segment reinforcing rib 22 and any one of the second reversing ring segment reinforcing ribs 23, the length of the second circumferential spacing B, the spacing between the guide ring segment reinforcing rib 32 and the second reversing ring segment reinforcing rib 23 adjacent thereto, the length of the third circumferential spacing C, the spacing between the connecting ring segment reinforcing rib 42 and the connecting ring segment reinforcing rib 42 adjacent thereto, the length of the fourth circumferential spacing D, and the length of the fifth circumferential spacing E are all equal, so that the flow cross-sectional area of the cooling water groove at each position is equal, and the cooling of the mold cavity at each position is uniform.

[0062] Of course, more groups of guide reinforcing rib groups can also be connected at both ends of the reversing reinforcing rib group, and the multiple groups of guide reinforcing rib groups connected at both ends of the reversing reinforcing rib group are connected in sequence, respectively, and the guide reinforcing rib group located at one end of the reversing reinforcing rib group and farthest from the reversing reinforcing rib group is connected with the connecting reinforcing rib group, and the connection between the reversing reinforcing rib group and the guide reinforcing rib group, the connection between adjacent guide reinforcing rib groups, and the connection between the connecting reinforcing rib group and the guide reinforcing rib group are the same as the connection mode of the above-mentioned embodiments, which will not be described here. Embodiment six

[0063] The embodiment discloses a preform mold, which comprises a movable half mold and a fixed half mold, and the movable half mold and the fixed half mold are configured to define a preform forming cavity; the fixed half mold comprises a mold cavity plate, and a plurality of mold cavities are mounted on the mold cavity plate; the mold cavities are the mold cavities in any one of the above-mentioned embodiments.

[0064] The above only describes the preferred embodiments of the present application, and any technical solutions achieving the same purpose by basically the same means fall within the protection scope of the present application.

Claims

1. A uniformly cooled mold cavity comprising a mold body having a parison forming cavity therein, characterized by: The outer side wall of the mold body is provided with a reversing reinforcing rib group, which comprises a reversing straight reinforcing rib, a first reversing ring reinforcing rib and two second reversing ring reinforcing ribs; The first end of the first reversing ring reinforcing rib is connected with one side of the middle part of the reversing straight reinforcing rib, and the tail end of the first reversing ring reinforcing rib extends along the circumference to the other side of the middle part of the reversing straight reinforcing rib with a first circumferential interval; The two ends of the reversing straight reinforcing rib are respectively connected with the tail ends of the two second reversing ring reinforcing ribs, and the first ends of the two second reversing ring reinforcing ribs extend along the circumference.

2. A uniformly cooled mold cavity as defined in claim 1, wherein: One of the first ends of the two second reversing ring reinforcing ribs is connected with the other end of the reversing straight reinforcing rib; and the first end of the other second reversing ring reinforcing rib has a second circumferential interval with one side of the reversing straight reinforcing rib.

3. A uniformly cooled mold cavity as defined in claim 2, wherein: The outer side wall of the mold body is further provided with a guide reinforcing rib group, which comprises a guide straight reinforcing rib and a guide ring reinforcing rib; The first end of the other second reversing ring reinforcing rib is connected with the tail end of the guide ring reinforcing rib through the guide straight reinforcing rib; and the first end of the guide ring reinforcing rib has a third circumferential interval with the guide straight reinforcing rib.

4. A uniformly cooled mold cavity as defined in claim 1, wherein: The first end of one of the second reversing ring reinforcing ribs has a fourth circumferential interval with one side of one end of the reversing straight reinforcing rib; and the first end of the other second reversing ring reinforcing rib has a second circumferential interval with one side of the reversing straight reinforcing rib.

5. A uniformly cooled mold cavity as defined in claim 4, wherein: The outer side wall of the mold body is further provided with a connecting reinforcing rib group, which comprises a connecting straight reinforcing rib and a connecting ring reinforcing rib; The first end of the connecting ring reinforcing rib is connected with the first end of one of the second reversing ring reinforcing ribs through the connecting straight reinforcing rib, and the tail end of the connecting ring reinforcing rib is connected with the first end of the connecting ring reinforcing rib along the circumferential ring of the outer side wall of the mold body.

6. A uniformly cooled mold cavity as defined in claim 4, wherein: The outer side wall of the mold body is further provided with another guide reinforcing rib group and a connecting reinforcing rib group, and the connecting reinforcing rib group, the guide reinforcing rib group and the reversing reinforcing rib group are sequentially connected.

7. A uniformly cooled mold cavity as defined in claim 6, wherein: The guide reinforcing rib group comprises a guide straight reinforcing rib and a guide ring reinforcing rib; and the connecting reinforcing rib group comprises a connecting straight reinforcing rib and a connecting ring reinforcing rib; The tail end of the guide ring reinforcing rib is connected with the first end of one of the second reversing ring reinforcing ribs through the guide straight reinforcing rib, and the first end of the guide ring reinforcing rib has a fifth circumferential interval with the guide straight reinforcing rib; and the tail end of the connecting ring reinforcing rib is connected with the first end of the guide ring reinforcing rib through the connecting straight reinforcing rib, and the first end of the connecting ring reinforcing rib extends along the circumference and is connected with the tail end of the connecting ring reinforcing rib.

8. A uniformly cooled mold cavity as defined in claim 7, wherein: There are multiple groups of the guide reinforcing rib group, and in adjacent guide reinforcing rib groups, the tail end of the guide ring reinforcing rib is connected with the first end of the guide ring reinforcing rib of the previous guide reinforcing rib group through the guide straight reinforcing rib, and the first end of the guide ring reinforcing rib of the guide reinforcing rib group has a circumferential interval with the guide straight reinforcing rib.

9. A uniformly cooled mold cavity as defined in claim 1, wherein: The two second reversing ring reinforcing ribs are connected at their first ends.

10. A parison mold comprising a moving half-mold and a stationary half-mold, the moving half-mold and the stationary half-mold being configured to define a bottle parison forming cavity, characterized by: The half mold set comprises a mold cavity plate, and a plurality of mold cavities are installed on the mold cavity plate, wherein the mold cavities are the mold cavities according to any one of claims 1-9.

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