Die cavity with multiple layers of cooling distributed in axial direction

Abstract

A mold cavity with multiple layers of cooling devices distributed in the axial direction 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, a plurality of layered circumferential reinforcing ribs are sequentially arranged on the outer side wall of the mold body in the axial direction, and the layered circumferential reinforcing ribs surround the outer side wall of the mold body in the circumferential direction and are connected end to end. A die cavity cooling layer is formed between every two adjacent layered circumferential reinforcing ribs, and the multiple layered circumferential reinforcing ribs form at least two die cavity cooling layers distributed in the axial direction on the outer side wall of the die body. The flow of the cooling water path is shortened, the temperature change of the cooling medium in the mold cavity cooling layer is not large, the cooling effect on all parts of the bottle blank in the mold cavity is uniform, the flow direction of the cooling medium is changed in the flowing process in the mold cavity cooling layer, the flow speed of the cooling medium is slowed down, the bottle blank is cooled more sufficiently, and the cooling efficiency is higher; and the situation that a good cooling effect cannot be achieved due to too high flow speed of the cooling medium is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bottle blank mould, concretely relates to a mould cavity which has multilayer cooling along the axial direction. BACKGROUND

[0002] In the injection mould, the mould cavity is used for defining the bottle blank at least part bottle body forming, in order to improve the cooling efficiency of bottle blank, the outer side wall of mould cavity is provided with cooling water channel. But in the prior art, the cooling water channel of mould cavity generally adopts a cooling water groove to form along the spiral circumferential wall of mould cavity, the mould cavity of this structure will have the following disadvantages:

[0003] The flow process of cooling medium along the cooling water channel is longer, along with the flow of cooling medium in the cooling water channel, the temperature of cooling medium gradually rises, therefore when cooling medium flows through the rear section of cooling water channel, the cooling effect of bottle blank in the mould cavity corresponding to the rear section of cooling water channel is significantly reduced due to the high temperature of cooling medium, which affects the overall cooling effect of mould cavity, and leads to the failure to achieve sufficient cooling.

[0004] The cooling water channel only has a single water inlet, and the water source is single, so the water source flow cannot be fully utilized, and the cooling efficiency is 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, it basically does not play a cooling role, and the cooling effect is poor. UTILITY MODEL CONTENTS

[0006] In order to overcome at least part of the deficiencies in the prior art, the utility model provides a mould cavity which has multilayer cooling along the axial direction.

[0007] A mould cavity which has multilayer cooling along the axial direction, comprising a mould body, a bottle blank forming cavity is arranged in the mould body along the axial direction, a plurality of layered circumferential reinforcing ribs are sequentially arranged on the outer side wall of the mould body along the axial direction, the layered circumferential reinforcing ribs are circumferentially arranged around the outer side wall of the mould body and connected end to end, a layer of mould cavity cooling layer is formed between two adjacent layered circumferential reinforcing ribs, and the plurality of layered circumferential reinforcing ribs form at least two layers of mould cavity cooling layers which are distributed along the axial direction on the outer side wall of the mould body.

[0008] In the preferred technical solution, the mould cavity cooling layer has a layer reinforcing rib group, and the layer reinforcing rib group forms a cooling water path for the flow of cooling medium in the mould cavity cooling layer.

[0009] Further, the layer reinforcing rib group comprises a layer straight section reinforcing rib extending along the axial direction of the mould body and at least one layer ring section reinforcing rib extending circumferentially along the outer side wall of the mould body.

[0010] The two ends of the layer straight section reinforcing rib are respectively connected with two adjacent layered circumferential reinforcing ribs.

[0011] When the number of the layer ring segment reinforcing ribs is one, one end of the layer ring segment reinforcing rib has a circumferential spacing F with one side of the layer straight segment reinforcing rib, and the other end is connected to the other side of the layer straight segment reinforcing rib after extending circumferentially;

[0012] When the number of the layer ring segment reinforcing ribs is multiple, the multiple layer ring segment reinforcing ribs are sequentially distributed along the axial direction parallel to the mold body, the connecting ends are alternately connected to the two sides of the layer straight segment reinforcing rib, and the other ends relative to the connecting ends alternately have a circumferential spacing G and a circumferential spacing H with the two sides of the layer straight segment reinforcing rib.

[0013] Further, the layer reinforcing rib group comprises a first layer straight segment reinforcing rib and a second layer straight segment reinforcing rib extending along the axial direction parallel to the mold body, and a layer ring segment reinforcing rib extending circumferentially along the outer side wall of the mold body;

[0014] The two ends of the first layer straight segment reinforcing rib are respectively connected to the adjacent two layer circular circumferential reinforcing ribs;

[0015] The two ends of the layer ring segment reinforcing rib have a circumferential spacing G and a circumferential spacing H respectively with the two sides of the first layer straight segment reinforcing rib;

[0016] One end of the second layer straight segment reinforcing rib is connected to one of the adjacent two layer circular circumferential reinforcing ribs, and the other end is connected between one end or both ends of the layer ring segment reinforcing rib.

[0017] Further, the layer reinforcing rib group comprises a first layer straight segment reinforcing rib and a second layer straight segment reinforcing rib extending along the axial direction parallel to the mold body, and a layer ring segment reinforcing rib extending circumferentially along the outer side wall of the mold body;

[0018] One end of the first layer straight segment reinforcing rib is connected to one of the adjacent two layer circular circumferential reinforcing ribs, and the other end is connected to one end of the layer ring segment reinforcing rib.

[0019] The layer ring segment reinforcing rib extends circumferentially from one side of the first layer straight segment reinforcing rib;

[0020] The second layer straight segment reinforcing rib has a circumferential spacing F with the other side of the first layer straight segment reinforcing rib, one end of the second layer straight segment reinforcing rib is connected to the other of the adjacent two layer circular circumferential reinforcing ribs, and the other end is connected to the other end of the layer ring segment reinforcing rib.

[0021] Preferably, a plurality of partition reinforcing rib groups are sequentially arranged circumferentially in the mold cavity cooling layer, the partition reinforcing rib groups separate the mold cavity cooling layer into a plurality of mold cavity cooling zones distributed circumferentially, and each of the mold cavity cooling zones forms a cooling water path for the flow of cooling medium.

[0022] Further, the partitioned reinforcing rib group comprises a first partitioned straight reinforcing rib extending along the axial direction of the mold body and a second partitioned straight reinforcing rib, and a partitioned ring reinforcing rib extending along the outer sidewall of the mold body in the circumferential direction;

[0023] The first partitioned straight reinforcing rib has a circumferential spacing G with the second partitioned straight reinforcing rib of the next partitioned reinforcing rib group, one end of the first partitioned straight reinforcing rib is connected to one of the two adjacent layered circumferential reinforcing ribs, and the other end is connected to one end of the partitioned ring reinforcing rib;

[0024] The partitioned ring reinforcing rib extends in the circumferential direction towards the direction of the previous partitioned reinforcing rib group;

[0025] The second partitioned straight reinforcing rib has a circumferential spacing H with the first partitioned straight reinforcing rib of the previous partitioned reinforcing rib group, one end of the second partitioned straight reinforcing rib is connected to the other of the two adjacent layered circumferential reinforcing ribs, and the other end is connected to the other end of the partitioned ring reinforcing rib.

[0026] Preferably, the mold cavity cooling layer comprises a plurality of partitioned straight reinforcing ribs extending in the circumferential direction, both ends of each partitioned straight reinforcing rib are connected to two adjacent layered circumferential reinforcing ribs, and the plurality of partitioned straight reinforcing ribs divide the mold cavity cooling layer into a plurality of mold cavity cooling zones distributed in the circumferential direction; each mold cavity cooling zone comprises a zone reinforcing rib group, and the zone reinforcing rib group forms a cooling water channel for the cooling medium to flow in the mold cavity cooling zone.

[0027] Further, the zone reinforcing rib group comprises at least one zone ring reinforcing rib extending along the outer sidewall of the mold body in the circumferential direction;

[0028] When the number of zone ring reinforcing ribs is one, one end of the zone ring reinforcing rib has a circumferential spacing F with one of the two adjacent partitioned straight reinforcing ribs, and the other end is connected to the other of the two adjacent partitioned straight reinforcing ribs;

[0029] When the number of zone ring reinforcing ribs is a plurality, the plurality of zone ring reinforcing ribs are sequentially distributed along the axial direction of the mold body, the connecting ends are alternately connected to the two adjacent partitioned straight reinforcing ribs, and the other ends relative to the connecting ends alternately have a circumferential spacing G and a circumferential spacing H with the two adjacent partitioned straight reinforcing ribs.

[0030] Further, the zone reinforcing rib group comprises a zone straight reinforcing rib extending along the axial direction of the mold body and a zone ring reinforcing rib extending along the outer sidewall of the mold body in the circumferential direction;

[0031] The two ends of the zone annular rib are respectively provided with a circumferential spacing G and a circumferential spacing H between the two adjacent zone straight ribs.

[0032] One end of the zone straight rib is connected with one of the two adjacent layered circumferential ribs, and the other end is connected between one end or two ends of the zone annular rib.

[0033] The beneficial effects of the utility model are: through setting multiple cavity cooling layers on the outer side wall of the mold body along the axial direction, the flow process of the cooling waterway is shortened, the cooling medium has little temperature change in the cavity cooling layer because of the short flow path, the cooling effect of each part of the bottle blank in the cavity is uniform, the flow direction of the cooling medium is changed during the flow in the cavity cooling layer, the flow rate of the cooling medium is slowed down, the bottle blank is cooled more fully, and the cooling efficiency is higher; the situation that the cooling medium cannot be cooled well because of the too high flow rate is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is an unfolded structure schematic view of the mold cavity of the embodiment one;

[0035] Figure 2 It is an unfolded structure schematic view of the mold cavity of the embodiment two;

[0036] Figure 3 It is an unfolded structure schematic view of the mold cavity of the embodiment three;

[0037] Figure 4 It is an unfolded structure schematic view of the mold cavity of the embodiment four;

[0038] Figure 5 It is an unfolded structure schematic view of the mold cavity of the embodiment five;

[0039] Figure 6 It is an unfolded structure schematic view of the mold cavity of the embodiment six;

[0040] Figure 7 It is an unfolded structure schematic view of the mold cavity of the embodiment seven;

[0041] Figure 8 It is an unfolded structure schematic view of the mold cavity of the embodiment eight;

[0042] Figure 9 It is an unfolded structure schematic view of the mold cavity of the embodiment nine;

[0043] Figure 10 It is an unfolded structure schematic view of the mold cavity of the embodiment ten;

[0044] Figure 11 It is an unfolded structure schematic view of the mold cavity of the embodiment eleven;

[0045] Figure 12A schematic diagram of the unfolded structure of the mold cavity of the embodiment twelve;

[0046] Figure 13 A schematic diagram of the unfolded structure of the mold cavity of the embodiment thirteen;

[0047] Figure 14 A schematic diagram of the unfolded structure of the mold cavity of the embodiment fourteen when the number of the zone annular segment reinforcing ribs in the zone reinforcing rib group is one;

[0048] Figure 15 A schematic diagram of the unfolded structure of the mold cavity of the embodiment fourteen when the number of the zone annular segment reinforcing ribs in the zone reinforcing rib group is more than one;

[0049] Figure 16 A schematic diagram of the unfolded structure of the mold cavity of the embodiment fourteen when the cooling water paths in the adjacent mold cavity cooling zones can share one water receiving port. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0051] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0052] In addition, if the embodiments of the present application involve descriptions of "first" or "second" and the like, the descriptions of "first" or "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application. Embodiment one:

[0053] For example, Figure 1As shown, the embodiment discloses a mold cavity with multiple layers of cooling distributed along the axial direction, comprising a mold body, a bottle blank forming cavity is arranged in the mold body along the axial direction, a plurality of layered circumferential reinforcing ribs 1 are sequentially arranged on the outer side wall of the mold body along the axial direction, the layered circumferential reinforcing ribs 1 are circumferentially arranged around the outer side wall of the mold body and connected end to end; a layer of mold cavity cooling layer 8 is formed between the two adjacent layered circumferential reinforcing ribs 1, the plurality of layered circumferential reinforcing ribs 1 form at least two layers of mold cavity cooling layers 8 on the outer side wall of the mold body, and the multiple layers of mold cavity cooling layers 8 are separated from each other; the mold cavity cooling layer 8 has a layer of reinforcing rib group, and the layer of reinforcing rib group forms a cooling water channel for the cooling medium to flow in the mold cavity cooling layer 8.

[0054] Specifically, the layer of reinforcing rib group comprises a layer of straight section reinforcing rib 2 extending along the axial direction of the mold body and a layer of ring section reinforcing rib 3 extending circumferentially along the outer side wall of the mold body, both ends of the layer of straight section reinforcing rib 2 are connected with the two adjacent layered circumferential reinforcing ribs 1 respectively, one end of the layer of ring section reinforcing rib 3 is connected with the layer of straight section reinforcing rib 2, and the other end extends circumferentially along the outer side wall of the mold body to have a circumferential spacing F with the layer of straight section reinforcing rib 2, thereby forming a water running port A; the inlet port B and the water inlet groove C are formed between one of the layered circumferential reinforcing ribs 1, the layer of straight section reinforcing rib 2 and the layer of ring section reinforcing rib 3, and the water outlet groove D and the water outlet port E are formed between the other of the layered circumferential reinforcing ribs 1, the layer of straight section reinforcing rib 2 and the layer of ring section reinforcing rib 3; the water inlet groove C and the water outlet groove D are connected and communicated through the water running port A. In the embodiment, in each layer of mold cavity cooling layer 8 formed on the outer side wall of the mold body, the inlet port B, the water inlet groove C, the water running port A, the water outlet groove D and the water outlet port E are sequentially connected and communicated to form a cooling water channel; by arranging multiple layers of mold cavity cooling layers 8 along the axial direction of the outer side wall of the mold body, the flow process of the cooling water channel is shortened, and the cooling medium flows from the inlet port B to the water outlet port E in the cooling water channel, and since the flow distance is relatively short, the temperature change of the cooling medium in the cooling water channel is not large, the cooling effect on each part of the bottle blank in the mold cavity is uniform, and the water inlet groove C and the water outlet groove D are connected and communicated through the water running port A, which can change the flow direction of the cooling medium in the cooling water channel during the flow process, slow down the flow speed of the cooling medium, and make the bottle blank cooling more sufficient and the cooling efficiency higher; the cooling medium cannot flow at a high speed in the cooling water channel to achieve a better cooling effect. In actual use, the inlet port B and the water outlet port E can be interchanged according to the use requirements, the sequence of the cooling medium flowing in the cooling water channel is inverted after interchanging, and the same cooling effect can be achieved.

[0055] As a preferred embodiment, one end of the layer of ring section reinforcing rib 3 is connected with the middle position of the layer of straight section reinforcing rib 2, and the other end has a circumferential spacing F with the middle position of the layer of straight section reinforcing rib 2. Thus, the flow cross section of the water inlet groove C is equal to the flow cross section of the water outlet groove D, the cooling performance of the water inlet groove C and the water outlet groove D is consistent, and each part of the bottle blank is uniformly cooled.

[0056] In a preferred embodiment, when the mold cavity is in its unfolded state, the projected length of the circumferential spacing F on the longitudinal section is equal to the spacing between the reinforcing ribs 1 and 3 of the layered circumferential reinforcing ribs. This ensures that the flow cross-sections of the inlet channel C, the outlet A, and the outlet channel D are equal in size, resulting in equal flow velocities at all points in the cooling water path and more uniform cooling of the preform.

[0057] In this embodiment, the ring-shaped reinforcing ribs 3 within the adjacent mold cavity cooling layers 8 extend circumferentially around the outer wall of the mold body from one end of the connecting straight reinforcing rib 2 towards the other end in opposite directions. The extending directions of the straight reinforcing ribs 2 within the adjacent mold cavity cooling layers 8 are not on the same straight line. Example 2:

[0058] like Figure 2 As shown, the specific implementation content of this embodiment is roughly the same as that of Embodiment 1, except that the extension direction of the straight section reinforcing rib 2 in the adjacent mold cavity cooling layer 8 is on the same straight line. Example 3:

[0059] like Figure 3 As shown, the specific implementation content of this embodiment is largely the same as that of Embodiment 1, except that: the reinforcing ribs 3 of the interlayer rings in the adjacent mold cavity cooling layers 8 extend in the same direction from one end of the connecting straight reinforcing rib 2 around the outer wall of the mold body to the other end. The extending directions of the straight reinforcing ribs 2 of the interlayer rings in the adjacent mold cavity cooling layers 8 are on the same straight line. Example 4:

[0060] like Figure 4 As shown, the specific implementation content of this embodiment is largely the same as that of Embodiment 1, except that: the reinforcing ribs 3 of the interlayer rings in the adjacent mold cavity cooling layers 8 extend in the same direction from one end of the connecting straight reinforcing rib 2 around the outer wall of the mold body to the other end. The extending directions of the straight reinforcing ribs 2 in the adjacent mold cavity cooling layers 8 are not on the same straight line. Example 5:

[0061] like Figure 5 As shown, the specific implementation content of this embodiment is roughly the same as that of Embodiment 1. The difference is that: each mold cavity cooling layer is provided with multiple layer ring segment reinforcing ribs. The multiple layer ring segment reinforcing ribs are distributed sequentially along the axial direction parallel to the mold body. The connecting ends are alternately connected to both sides of the layer straight segment reinforcing ribs. The other end of the connecting end is alternately connected to both sides of the layer straight segment reinforcing ribs with circumferential spacing G and circumferential spacing H.

[0062] Specifically, the layer reinforcement rib group comprises layer straight section reinforcement ribs 2, first layer ring section reinforcement ribs 6 and second layer ring section reinforcement ribs 7; the layer straight section reinforcement ribs 2 extend in a direction parallel to the mold body axis, and the two ends are connected with two adjacent layering circumferential reinforcement ribs 1 respectively; the first layer ring section reinforcement ribs 6 and the second layer ring section reinforcement ribs 7 are arranged in sequence in the axial direction on the outer side wall of the mold body; one end of the first layer ring section reinforcement rib 6 has a first circumferential interval G with the layer straight section reinforcement rib 2, thereby forming a first water outlet J, and the other end is connected with the layer straight section reinforcement rib 2; one end of the second layer ring section reinforcement rib 7 is connected with the layer straight section reinforcement rib 2, and the other end has a second circumferential interval H with the layer straight section reinforcement rib 2, thereby forming a second water outlet K; the connection position of the first layer ring section reinforcement rib 6 with the layer straight section reinforcement rib 2 and the connection position of the second layer ring section reinforcement rib 7 with the layer straight section reinforcement rib 2 are located on both sides of the layer straight section reinforcement rib 2 respectively.

[0063] One layering circumferential reinforcement rib 1, the layer straight section reinforcement rib 2 and the first layer ring section reinforcement rib 6 form a water inlet B and a water inlet channel C; the other layering circumferential reinforcement rib 1, the layer straight section reinforcement rib 2 and the second layer ring section reinforcement rib 7 form a water outlet channel D and a water outlet E; the first layer ring section reinforcement rib 6, the layer straight section reinforcement rib 2 and the second layer ring section reinforcement rib 7 form a circulation channel L; the water inlet channel C and the circulation channel L are connected and communicated through the first water outlet J, and the circulation channel L and the water outlet channel D are connected and communicated through the second water outlet K.

[0064] Similarly, in actual use, the water inlet B and the water outlet E can be interchanged according to the use requirement, and after the interchanging, the order of the cooling medium flowing in the cooling water path is reversed, and both can achieve the same cooling effect.

[0065] As a preferred embodiment, the first layer ring section reinforcement rib 6 and the second layer ring section reinforcement rib 7 are uniformly distributed with equal intervals between the two adjacent layering circumferential reinforcement ribs 1, so that the interval between the first layer ring section reinforcement rib 6 and the layering circumferential reinforcement rib 1 adjacent thereto, the interval between the second layer ring section reinforcement rib 7 and the layering circumferential reinforcement rib 1 adjacent thereto, and the interval between the first layer ring section reinforcement rib 6 and the second layer ring section reinforcement rib 7 are equal, that is, the flow cross-sectional size of the water inlet channel C, the water outlet channel D and the circulation channel L are equal.

[0066] As a preferred embodiment, the projection length of the first circumferential interval G on the longitudinal section is equal to the interval between the first layer ring section reinforcement rib 6 and the layering circumferential reinforcement rib 1 adjacent thereto, the interval between the second layer ring section reinforcement rib 7 and the layering circumferential reinforcement rib 1 adjacent thereto, or the interval between the first layer ring section reinforcement rib 6 and the second layer ring section reinforcement rib 7. The projection length of the second circumferential interval H on the longitudinal section is equal to the interval between the first layer ring section reinforcement rib 6 and the layering circumferential reinforcement rib 1 adjacent thereto, the interval between the second layer ring section reinforcement rib 7 and the layering circumferential reinforcement rib 1 adjacent thereto, or the interval between the first layer ring section reinforcement rib 6 and the second layer ring section reinforcement rib 7. Example 6:

[0067] like Figure 6 As shown, the specific implementation content of this embodiment is roughly the same as that of Embodiment 1, except that: the layered reinforcing rib group includes a first layer of straight reinforcing ribs 4, a second layer of straight reinforcing ribs 5, and a layered ring reinforcing rib 3 extending circumferentially along the outer side wall of the mold body; the first layer of straight reinforcing ribs 4 extends in a direction parallel to the axis of the mold body, and its two ends are respectively connected to two adjacent layered circumferential reinforcing ribs 1; one end of the second layer of straight reinforcing ribs 5 is connected to one of the layered circumferential reinforcing ribs 1, and the other end extends in a direction parallel to the axis of the mold body toward another layered circumferential reinforcing rib 1 and connects to one end of the layered ring reinforcing rib 3; there is a circumferential distance G between the first layer of straight reinforcing ribs 4 and the second layer of straight reinforcing ribs 5; the other end of the layered ring reinforcing rib 3 extends circumferentially around the outer side wall of the mold body to have a circumferential distance H with the first layer of straight reinforcing ribs 4, thereby forming a sprue A.

[0068] Inlet B is formed between one layered circumferential reinforcing rib 1, the first layer of straight reinforcing rib 4, and the second layer of straight reinforcing rib 5; inlet groove C is formed between the layered annular reinforcing rib 3 and another layered circumferential reinforcing rib 1; outlet groove D and outlet E are formed between one layered circumferential reinforcing rib 1, the second layer of straight reinforcing rib 5, the layered annular reinforcing rib 3, and the first layer of straight reinforcing rib 4; inlet groove C and outlet groove D are connected via outlet A. Similarly, in actual use, inlet B and outlet E can be interchanged according to usage requirements. After interchange, the order in which the cooling medium flows in the cooling water circuit is reversed, and both can achieve the same cooling effect.

[0069] In a preferred embodiment, the ring-shaped reinforcing rib 3 is located between two adjacent layered circumferential reinforcing ribs 1, so that the flow cross-section of the inlet channel C is equal to the flow cross-section of the outlet channel D. At this time, the length of the second layer of straight reinforcing ribs 5 is equal to half the sum of the length of the first layer of straight reinforcing ribs 4 and the width of the ring-shaped reinforcing rib 3.

[0070] In a preferred embodiment, the projected length of the circumferential spacing G on the longitudinal section is equal to the spacing between the reinforcing ribs 1 and the layered ring segment reinforcing ribs 3; the projected length of the circumferential spacing H on the longitudinal section is equal to the spacing between the reinforcing ribs 1 and the layered ring segment reinforcing ribs 3.

[0071] In this embodiment, the second straight reinforcing rib 5 in each mold cavity cooling layer 8 is located on the same side of the first straight reinforcing rib 4, and the ring-shaped reinforcing rib 3 extends circumferentially around the outer wall of the mold body from one end connecting to the second straight reinforcing rib 5 to the other end in the same direction. The extending directions of the first straight reinforcing rib 4 in adjacent mold cavity cooling layers 8 are not on the same straight line. Example 7:

[0072] As Figure 7 shown, the specific implementation of the embodiment is substantially the same as that of Embodiment Six, the difference is that the second layer straight section reinforcing rib 5 in the adjacent mold cavity cooling layer 8 is located on the opposite side of the first layer straight section reinforcing rib 4, and the layer ring section reinforcing rib 3 extends in the opposite direction from the outer side wall of the mold body to the other end from the end connected to the second layer straight section reinforcing rib 5. Embodiment Eight:

[0073] As Figure 8 shown, the specific implementation of the embodiment is substantially the same as that of Embodiment Six, the difference is that the first layer straight section reinforcing rib 4 in the adjacent mold cavity cooling layer 8 extends in the same straight line. Embodiment Nine:

[0074] As Figure 9 shown, the specific implementation of the embodiment is substantially the same as that of Embodiment One, the difference is that one end of the second layer straight section reinforcing rib 5 is connected to one of the layered circumferential reinforcing ribs 1, and the other end extends in the direction parallel to the mold body axis to the other layered circumferential reinforcing rib 1 and is connected between the two ends of the layer ring section reinforcing rib 3.

[0075] Specifically, the layer reinforcing rib group includes the first layer straight section reinforcing rib 4, the second layer straight section reinforcing rib 5, and the layer ring section reinforcing rib 3 extending circumferentially along the outer side wall of the mold body; the first layer straight section reinforcing rib 4 extends in the direction parallel to the mold body axis, and the two ends are respectively connected to the adjacent two layered circumferential reinforcing ribs 1; one end of the second layer straight section reinforcing rib 5 is connected to one of the layered circumferential reinforcing ribs 1, and the other end extends in the direction parallel to the mold body axis to the other layered circumferential reinforcing rib 1 and is connected between the two ends of the layer ring section reinforcing rib 3; one end of the layer ring section reinforcing rib 3 and the first layer straight section reinforcing rib 4 have a circumferential spacing G, thereby forming a first water running port J, and the other end of the layer ring section reinforcing rib 3 and the first layer straight section reinforcing rib 4 have a circumferential spacing H, thereby forming a second water running port K.

[0076] One of the layered circumferential reinforcing ribs 1, the first layer straight section reinforcing rib 4, the layer ring section reinforcing rib 3, and the second layer straight section reinforcing rib 5 form a water inlet port B, a water inlet groove C, a water outlet groove D, and a water outlet port E; the other layered circumferential reinforcing rib 1, the first layer straight section reinforcing rib 4, and the layer ring section reinforcing rib 3 form a circulating groove L; the water inlet groove C and the circulating groove L are connected through the first water running port J, and the circulating groove L is connected to the water outlet groove D through the second water running port K.

[0077] Similarly, in actual use, the water inlet port B and the water outlet port E can be exchanged according to the use requirements, and after the exchange, the order of the cooling medium flowing in the cooling water path is reversed, and both can achieve the same cooling effect.

[0078] In a preferred embodiment, the projected length of the circumferential spacing G on the longitudinal section is equal to the spacing between the reinforcing ribs 1 and 3. The projected length of the circumferential spacing H on the longitudinal section is equal to the spacing between the reinforcing ribs 1 and 3. Example 10:

[0079] like Figure 10 As shown, the specific implementation content of this embodiment is roughly the same as that of Embodiment Nine, except that: the layered reinforcing rib group includes a first layer of straight reinforcing ribs 4, a second layer of straight reinforcing ribs 5, and a layered ring reinforcing rib 3 extending circumferentially along the outer side wall of the mold body; one end of the first layer of straight reinforcing ribs 4 is connected to one of the layered circumferential reinforcing ribs 1, and the other end extends in a direction parallel to the mold body axis toward another layered circumferential reinforcing rib 1 and connects to one end of the layered ring reinforcing rib 3; one end of the second layer of straight reinforcing ribs 5 is connected to another layered circumferential reinforcing rib 1, and the other end extends in a direction parallel to the mold body axis toward one of the layered circumferential reinforcing ribs 1 and connects to the other end of the layered ring reinforcing rib 3; there is a circumferential spacing F between the first layer of straight reinforcing ribs 4 and the second layer of straight reinforcing ribs 5, thereby forming a sprue A.

[0080] One layer of circumferential reinforcing rib 1, the first layer of straight reinforcing rib 4, and the layer of annular reinforcing rib 3 form an inlet B and an inlet channel C; another layer of circumferential reinforcing rib 1, the second layer of straight reinforcing rib 5, and the layer of annular reinforcing rib 3 form an outlet channel D and an outlet E; the inlet channel C and the outlet channel D are connected via a water outlet A.

[0081] Similarly, in actual use, inlet B and outlet E can be interchanged according to usage requirements. After the interchange, the order in which the cooling medium flows through the cooling water circuit is reversed, and both can achieve the same cooling effect.

[0082] In a preferred embodiment, the layered ring reinforcing rib 3 is located in the middle of two adjacent layered circumferential reinforcing ribs 1, so that the flow cross-section of the inlet tank C is equal to the flow cross-section of the outlet tank D.

[0083] In a preferred embodiment, the projected length of the circumferential spacing F on the longitudinal section is equal to the spacing between the reinforcing ribs 1 and 3 of the layered circumferential reinforcing ribs.

[0084] In this embodiment, the second straight reinforcing rib 5 in each mold cavity cooling layer 8 is located on the same side as the first straight reinforcing rib 4. The extending directions of the first straight reinforcing rib 4 and the second straight reinforcing rib 5 in each mold cavity cooling layer 8 are respectively on the same straight line. Example 11:

[0085] like Figure 11As shown, the specific implementation content of this embodiment is roughly the same as that of embodiment ten, except that the extension directions of the first straight section reinforcing rib 4 and / or the second straight section reinforcing rib 5 in each mold cavity cooling layer 8 are not on the same straight line. Example 12:

[0086] like Figure 12 As shown, the specific implementation content of this embodiment is largely the same as that of Embodiment 10, except that the second straight reinforcing rib 5 in the adjacent mold cavity cooling layer 8 is located on a different side of the first straight reinforcing rib 4. The extension directions of the first straight reinforcing rib 4 and / or the second straight reinforcing rib 5 in each mold cavity cooling layer 8 are not on the same straight line. Example 13:

[0087] like Figure 13 As shown, this embodiment also discloses a mold cavity with multiple layers of cooling distributed along the axial direction, including a mold body. A preform forming cavity is provided axially within the mold body. Multiple layered circumferential reinforcing ribs 1 are sequentially arranged along the axial direction on the outer wall of the mold body. The layered circumferential reinforcing ribs 1 surround the outer wall of the mold body circumferentially and are connected end-to-end. A mold cavity cooling layer 8 is formed between two adjacent layered circumferential reinforcing ribs 1. The multiple layered circumferential reinforcing ribs 1 form multiple mold cavity cooling layers 8 on the outer wall of the mold body, and the multiple mold cavity cooling layers 8 are separated and independent from each other. The multiple layered circumferential reinforcing ribs 1 form at least two mold cavity cooling layers 8 distributed axially on the outer wall of the mold body. Multiple groups of partitioned reinforcing ribs are sequentially arranged circumferentially within the mold cavity cooling layer 8. The partitioned reinforcing rib groups divide the mold cavity cooling layer 8 into multiple mold cavity cooling zones distributed circumferentially, and each mold cavity cooling zone forms a cooling water channel for the flow of cooling medium.

[0088] The partitioned reinforcing rib group includes a first partitioned straight reinforcing rib 9, a second partitioned straight reinforcing rib 10, and a partitioned annular reinforcing rib 11 extending circumferentially along the outer side wall of the mold body; both the first partitioned straight reinforcing rib 9 and the second partitioned straight reinforcing rib 10 extend axially parallel to the mold body; the first partitioned straight reinforcing rib 9 and the second partitioned straight reinforcing rib 10 of the subsequent partitioned reinforcing rib group have a circumferential distance G, thereby forming a first gate J; one end of the first partitioned straight reinforcing rib 9 is connected to one of the two adjacent layered circumferential reinforcing ribs 1, and the other end is connected to one end of the partitioned annular reinforcing rib 11; the partitioned annular reinforcing rib 11 extends circumferentially toward the previous partitioned reinforcing rib group; the second partitioned straight reinforcing rib 10 and the first partitioned straight reinforcing rib 9 of the previous partitioned reinforcing rib group have a circumferential distance H, thereby forming a second gate K; one end of the second partitioned straight reinforcing rib 10 is connected to the other of the two adjacent layered circumferential reinforcing ribs 1, and the other end is connected to the other end of the partitioned annular reinforcing rib 11.

[0089] In this embodiment, a cooling water channel is defined between adjacent layered circumferential reinforcing ribs 1 and adjacent partitioned reinforcing rib groups; an inlet B and an inlet groove C are formed between one layered circumferential reinforcing rib 1, the first partitioned straight section reinforcing rib 9 and the partitioned annular section reinforcing rib 11; an outlet groove D and an outlet E are formed between another layered circumferential reinforcing rib 1, the second partitioned straight section reinforcing rib 10 and the partitioned annular section reinforcing rib 11; the inlet groove C and the outlet groove D are connected via a second water outlet K.

[0090] Similarly, in actual use, inlet B and outlet E can be interchanged according to usage requirements. After the interchange, the order in which the cooling medium flows through the cooling water circuit is reversed, and both can achieve the same cooling effect.

[0091] In a preferred embodiment, the partitioned ring reinforcing rib 11 is located in the middle of two adjacent layered circumferential reinforcing ribs 1, so that the flow cross-sectional size of the inlet tank C is equal to the flow cross-sectional size of the outlet tank D.

[0092] In a preferred embodiment, the projected length of the circumferential spacing G and / or circumferential spacing H on the longitudinal section is equal to the spacing between the layered circumferential reinforcing ribs 1 and the partitioned ring reinforcing ribs 11. Example 14:

[0093] like Figures 14 to 16 As shown, this embodiment also discloses a mold cavity with multiple cooling layers distributed along the axial direction, including a mold body. A preform forming cavity is provided in the mold body along the axial direction. Multiple layered circumferential reinforcing ribs 1 are sequentially provided on the outer wall of the mold body along the axial direction. The layered circumferential reinforcing ribs 1 surround the outer wall of the mold body circumferentially and are connected end to end. A mold cavity cooling layer 8 is formed between two adjacent layered circumferential reinforcing ribs 1. Multiple layered circumferential reinforcing ribs 1 form multiple mold cavity cooling layers 8 on the outer wall of the mold body. The multiple mold cavity cooling layers 8 are separated and independent from each other. Multiple layered circumferential reinforcing ribs 1 form at least two mold cavity cooling layers 8 distributed along the axial direction on the outer wall of the mold body. The mold cavity cooling layer 8 is provided with multiple partitioned straight reinforcing ribs 12 in sequence along the circumference. The two ends of the partitioned straight reinforcing ribs 12 are respectively connected to two adjacent layered circumferential reinforcing ribs 1. The multiple partitioned straight reinforcing ribs 12 divide the mold cavity cooling layer 8 into multiple mold cavity cooling zones 81 distributed along the circumference. The mold cavity cooling zone 81 has a group of reinforcing ribs, which form a cooling water channel for the flow of cooling medium in the mold cavity cooling zone 81.

[0094] The zone stiffener group includes at least one zone ring stiffener 13 extending circumferentially along the outer side wall of the mold body;

[0095] like Figure 14As shown, when there is only one reinforcing rib 13 in the zone ring section, one end of the reinforcing rib 13 has a circumferential spacing F with one of the two adjacent zone straight reinforcing ribs 12, and the other end is connected to the other of the two adjacent zone straight reinforcing ribs 12.

[0096] like Figure 15 As shown, when there are multiple reinforcing ribs 13 in the ring section, the multiple reinforcing ribs 13 in the ring section are distributed sequentially along the axis parallel to the mold body. The connecting end is alternately connected to two adjacent straight reinforcing ribs 12 in the zone. The other end of the connecting end is alternately connected to two adjacent straight reinforcing ribs 12 in the zone with a circumferential spacing G and a circumferential spacing H.

[0097] Furthermore, in the above embodiments, such as Figure 16 As shown, when the inlet B and / or outlet E in the cooling water channel structure of adjacent mold cavity cooling zones 81 are close to each other, they can share a single water inlet port, thereby reducing the number of water inlets and solving the problem of multiple water inlets in close proximity affecting the strength of the mold structure.

[0098] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A mold cavity having a plurality of layers of cooling distributed axially, comprising a mold body, a parison forming cavity being provided axially in the mold body, characterized in that: The outer side wall of the die body is provided with a plurality of layered circumferential reinforcing ribs in sequence along the axial direction, the layered circumferential reinforcing ribs are circumferentially arranged around the outer side wall of the die body and connected end to end, a layer of die cavity cooling layer is formed between any two adjacent layered circumferential reinforcing ribs, and a plurality of layered circumferential reinforcing ribs form at least two layers of die cavity cooling layers distributed along the axial direction on the outer side wall of the die body.

2. A multi-layer cooled cavity as defined in claim 1, wherein: The die cavity cooling layer has a layer reinforcing rib group, and the layer reinforcing rib group forms a cooling water path for the flow of cooling medium in the die cavity cooling layer.

3. A multi-layer cooled die cavity according to claim 2, wherein: The layer reinforcing rib group comprises a layer straight section reinforcing rib extending along the axial direction of the die body and at least one layer ring section reinforcing rib extending circumferentially along the outer side wall of the die body. The two ends of the layer straight section reinforcing rib are respectively connected to two adjacent layered circumferential reinforcing ribs. When the number of layer ring section reinforcing ribs is one, the layer ring section reinforcing rib has a circumferential spacing F between one end and one side of the layer straight section reinforcing rib, and the other end is connected to the other side of the layer straight section reinforcing rib after extending circumferentially. When the number of layer ring section reinforcing ribs is more than one, the plurality of layer ring section reinforcing ribs are sequentially distributed along the axial direction parallel to the die body, the connecting ends are alternately connected to the two sides of the layer straight section reinforcing rib, and the other ends relative to the connecting ends alternately have circumferential spacings G and H relative to the two sides of the layer straight section reinforcing rib.

4. A multi-layer cooled cavity as defined in claim 2, wherein: The layer reinforcing rib group comprises a first layer straight section reinforcing rib and a second layer straight section reinforcing rib extending along the axial direction of the die body and a layer ring section reinforcing rib extending circumferentially along the outer side wall of the die body. The two ends of the first layer straight section reinforcing rib are respectively connected to two adjacent layered circumferential reinforcing ribs. The two ends of the layer ring section reinforcing rib have circumferential spacings G and H relative to the two sides of the first layer straight section reinforcing rib. One end of the second layer straight section reinforcing rib is connected to one of the two adjacent layered circumferential reinforcing ribs, and the other end is connected between one end or both ends of the layer ring section reinforcing rib.

5. A multi-layer cooled cavity as defined in claim 2, wherein: The layer reinforcing rib group comprises a first layer straight section reinforcing rib and a second layer straight section reinforcing rib extending along the axial direction of the die body and a layer ring section reinforcing rib extending circumferentially along the outer side wall of the die body. One end of the first layer straight section reinforcing rib is connected to one of the two adjacent layered circumferential reinforcing ribs, and the other end is connected to one end of the layer ring section reinforcing rib. The layer ring section reinforcing rib extends circumferentially from one side of the first layer straight section reinforcing rib. The second layer straight section reinforcing rib has a circumferential spacing F relative to the other side of the first layer straight section reinforcing rib, one end of the second layer straight section reinforcing rib is connected to the other of the two adjacent layered circumferential reinforcing ribs, and the other end is connected to the other end of the layer ring section reinforcing rib.

6. A multi-layer cooled mold cavity according to claim 1, wherein: The die cavity cooling layer is provided with a plurality of partition reinforcing rib groups in sequence along the circumferential direction, the partition reinforcing rib groups divide the die cavity cooling layer into a plurality of die cavity cooling zones distributed along the circumferential direction, and each die cavity cooling zone forms a cooling water path for the flow of cooling medium.

7. A multi-layer cooled cavity as defined in claim 6, wherein: The partition reinforcing rib group comprises a first partition straight rib and a second partition straight rib extending along the axial direction of the mold body, and a partition ring rib extending along the outer sidewall of the mold body in the circumferential direction; The first partition straight rib has a circumferential spacing G between the second partition straight rib of the next partition reinforcing rib group and one end of the first partition straight rib is connected to one of the two adjacent layered circumferential reinforcing ribs, and the other end is connected to one end of the partition ring rib; The partition ring rib extends in the circumferential direction towards the previous partition reinforcing rib group; The second partition straight rib has a circumferential spacing H between the first partition straight rib of the previous partition reinforcing rib group, and one end of the second partition straight rib is connected to the other of the two adjacent layered circumferential reinforcing ribs, and the other end is connected to the other end of the partition ring rib.

8. A multi-layer cooled mold cavity according to claim 1, wherein: The mold cavity cooling layer is provided with a plurality of partition straight ribs extending in the circumferential direction, and the two ends of the partition straight rib are respectively connected to the two adjacent layered circumferential reinforcing ribs, and the plurality of partition straight ribs divide the mold cavity cooling layer into a plurality of mold cavity cooling zones distributed in the circumferential direction; the zone reinforcing rib group is provided in the mold cavity cooling zone to form a cooling water channel for the flow of cooling medium.

9. A multi-layer cooled die cavity according to claim 8, wherein: The zone reinforcing rib group comprises at least one zone ring rib extending along the outer sidewall of the mold body in the circumferential direction; When the number of zone ring ribs is one, the zone ring rib has a circumferential spacing F between one end of the zone ring rib and one of the two adjacent partition straight ribs, and the other end is connected to the other of the two adjacent partition straight ribs; When the number of zone ring ribs is more than one, the plurality of zone ring ribs are sequentially distributed along the axial direction of the mold body, the connection ends are alternately connected to the two adjacent partition straight ribs, and the other ends relative to the connection ends alternately have circumferential spacings G and H with respect to the two adjacent partition straight ribs.

10. A multi-layer cooled mold cavity according to claim 8, wherein: The zone reinforcing rib group comprises a zone straight rib extending along the axial direction of the mold body and a zone ring rib extending along the outer sidewall of the mold body in the circumferential direction; The two ends of the zone ring rib have circumferential spacings G and H with respect to the two adjacent partition straight ribs, respectively; One end of the zone straight rib is connected to one of the two adjacent layered circumferential reinforcing ribs, and the other end is connected between one end or both ends of the zone ring rib.

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