Core plate, core plate assembly and method for manufacturing core plate

Abstract

The present invention relates to a core plate, a core plate assembly and a method for manufacturing the core plate, comprising: a core plate body, the core plate body having at least one row of core assembly mounting positions, each row of core assembly mounting positions being divided into a plurality of mounting position groups, a first cooling channel and a second cooling channel connected to each mounting position group being arranged in the core plate body, the first cooling channel and the second cooling channel being spaced apart; the first cooling channel and the second cooling channel corresponding to adjacent mounting position groups being alternately connected. The core plate of the present invention designs the cooling channel to be an alternately connected structure, so that the cooling water is in full contact with the core assembly, so that the core assembly is evenly cooled, the molding quality of the preform is ensured, and at the same time the scrap rate of the core plate is reduced, so as to achieve the purpose of lean production, and belongs to the field of preform manufacturing technology.

Description

Technical Field

[0001] The invention relates to the technical field of bottle embryo manufacturing, and in particular to a core plate, a core plate assembly and a method for manufacturing the core plate. Background Art

[0002] Reasonable design of the cooling water circuit of the core plate is an important indicator to measure the quality of the injection mold. At present, there is a lack of systematic design methods for the cooling water circuit of the core plate. The cooling water circuit of the core plate is prone to unreasonable design, which can easily lead to uneven cooling in actual use and affect the molding quality of the preform. Moreover, it is difficult to correct the cooling water circuit of the core plate after problems occur, which means that the core plate needs to be scrapped and redone. Therefore, the reasonable design of the cooling water circuit of the core plate is very important. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide a core plate, a core plate assembly and a method for manufacturing a core plate, so that cooling water is fully in contact with the core plate assembly, so that the core plate assembly is evenly cooled, the molding quality of the bottle blank is guaranteed, and at the same time the scrap rate of the core plate is reduced to achieve the purpose of lean production.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A core plate comprises: a core plate body, the core plate body having at least one row of core component mounting positions, each row of core component mounting positions being divided into a plurality of mounting position groups, a first cooling flow path and a second cooling flow path connected to each mounting position group being arranged in the core plate body, the first cooling flow path and the second cooling flow path being distributed at intervals; the first cooling flow paths and the second cooling flow paths corresponding to adjacent mounting position groups being connected alternately.

[0006] As a preference, each installation position group includes at least two core component installation positions, and each installation position group includes the same number of core component installation positions.

[0007] As a preference, the core plate body is further provided with a first passage and a second passage, the first passage selectively connects the first cooling flow path and the second cooling flow path, and the second passage selectively connects the first cooling flow path and the second cooling flow path, wherein the first cooling flow path is located at the beginning or the end of the row of the core assembly installation position, and the second cooling flow path is located at the beginning or the end of the row of the core assembly installation position, any one of the first passage and the second passage serves as a cooling medium inflow channel, and the other serves as a cooling medium outflow channel.

[0008] As a preference, adjacent first cooling flow paths that are interconnected are an integrated structure, and adjacent second cooling flow paths that are interconnected are an integrated structure; adjacent first cooling flow paths that are partially unconnected are an integrated structure blocked by a sealing member, and adjacent second cooling flow paths that are partially unconnected are an integrated structure blocked by a sealing member.

[0009] As a preference, the first cooling flow path and the second cooling flow path are spaced apart and distributed in the axial direction of the core assembly mounting position.

[0010] As a preference, the first cooling channel and the second cooling channel are located on both sides of the row where the core assembly mounting position is located, and are at the same axial height of the core assembly mounting position.

[0011] As a preference, the first cooling flow path and / or the second cooling flow path are directly connected to the core assembly mounting position; and / or the first cooling flow path and / or the second cooling flow path are connected to the core assembly mounting position via connecting passages, respectively.

[0012] A core plate assembly includes a core plate. A core assembly is installed in each core assembly installation position of the core plate body. The core assembly has a core cooling channel and a first end and a second end located at both ends of the core cooling channel. The first end and the second end are respectively connected to a first cooling flow path and a second cooling flow path.

[0013] A method for manufacturing a core plate, comprising processing at least one row of core assembly mounting positions, a first channel and a second channel on the core plate, wherein the first channel and the second channel serve as a first cooling flow path and a second cooling flow path respectively; processing a third channel and a fourth channel on the core plate, wherein the third channel and the fourth channel serve as a first passage and a second passage respectively; and comprising the following steps:

[0014] S1. According to the preset number of cavities and the mold frame specifications of the injection molding machine, m rows and n columns of mold core assembly installation positions are processed on the mold core plate;

[0015] S2. Divide the n core assembly installation positions in each row into x groups according to the arrangement of the core assembly installation positions of the core plate, the design of the manifold plate of the hot runner, and the pressure and flow rate of the cooling water;

[0016] S3, according to the value of x, determining the structure of the first cooling channel and the second cooling channel in each row of the core assembly installation position, and determining the structure of the first channel and the second channel;

[0017] S4. According to the determined structures of the first cooling passage and the second cooling passage, the first cooling passage and the second cooling passage sequentially penetrated by the core assembly mounting position are processed; according to the determined structures of the first passage and the second passage, the first passage and the second passage penetrating m rows of the first cooling passage or the second cooling passage are processed.

[0018] A method for manufacturing a core plate comprises the following steps:

[0019] Processing a first plate having a first cooling channel and m rows and n columns of mold core mounting positions;

[0020] Processing a second plate having a first cooling flow channel groove, a second cooling flow channel groove and m rows and n columns of core cooling pipe mounting positions;

[0021] Processing a third plate having a second cooling flow channel;

[0022] The first plate is processed with a first passage hole and a second passage hole, or the first plate is selectively processed with the first passage hole and the second passage hole;

[0023] The second plate is processed with a first passage hole and a second passage hole, or the second plate is processed with the first passage hole and the second passage hole;

[0024] The third plate is processed with a first passage hole and a second passage hole, or the second plate is processed with the first passage hole and the second passage hole;

[0025] The first plate, the second plate and the third plate are sequentially stacked and welded, so that the first cooling flow path grooves of the first plate and the second plate are butted to form a first cooling flow path, the m rows and n columns of the core mounting positions of the first plate and the m rows and n columns of the core cooling pipe mounting positions of the second plate are butted to form a core assembly mounting position, and the second cooling flow path grooves of the second plate and the third plate are butted to form a second cooling flow path;

[0026] The first passage holes and the second passage holes of the first plate and the second plate are butted together to form the first passage and the second passage;

[0027] or the first passage holes of the first plate and the second plate are butted together to form a first passage, and the second passage holes of the second plate and the third plate are butted together to form a second passage;

[0028] or the second passage holes of the first plate and the second plate are butted together to form the second passage, and the first passage holes of the second plate and the third plate are butted together to form the first hole;

[0029] To form the core board.

[0030] In general, the present invention has the following advantages:

[0031] 1. The core plate of the present invention designs the cooling channels into an alternately connected structure so that the cooling water is in full contact with the core assembly, so that the core assembly is evenly cooled, the molding quality of the preform is ensured, and the scrap rate of the core plate is reduced, thereby achieving the purpose of lean production.

[0032] 2. The manufacturing method of the core plate of the present invention can flexibly design the inlet and outlet passages of the cooling medium on the core plate, can meet the cooling design requirements of the core plate under different mold frame constraints, improve the design flexibility, and reduce the restrictions of the mold frame on the cooling channel of the core plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of a core plate, wherein a core assembly (one is shown) is mounted on the core plate.

[0034] Figure 2 It is a schematic diagram when the number of mounting position groups in the core plate is two, wherein the second cooling flow path is divided into two parts.

[0035] Figure 3 It is a schematic diagram when the number of mounting position groups in the core plate is two, wherein the first cooling flow path is divided into two parts.

[0036] Figure 4 This is a schematic diagram when the number of mounting position groups in the core plate is three.

[0037] Figure 5 It is a schematic diagram when the number of mounting position groups in the core plate is four, wherein the first cooling flow path is divided into two parts.

[0038] Figure 6 It is a schematic diagram when the number of mounting position groups in the core plate is four, wherein the first cooling flow path is divided into three parts.

[0039] Figure 7 This is a schematic diagram when the number of mounting position groups in the core plate is five.

[0040] Figure 8 It is a schematic diagram when the number of mounting position groups in the core plate is six, wherein the first cooling flow path is divided into three parts.

[0041] Fig. 9 It is a schematic diagram when the number of mounting position groups in the core plate is six, wherein the first cooling flow path is divided into four parts.

[0042] Fig.10 Schematic diagram of the first plate, the second plate and the third plate obtained by another method for manufacturing the core plate in Example 4.

[0043] Fig.11 Schematic diagram of a core plate formed by welding a first plate, a second plate and a third plate.

[0044] Among them, 1 is the core plate body, 2 is the first passage, 3 is the core assembly, 4 is the core assembly mounting position, 5 is the first cooling flow path, 6 is the second cooling flow path, 7 is the mounting position group, 8 is the second passage, 9 is the blocking piece, 10 is the first plate material, 11 is the second plate material, 12 is the third plate material, 13 is the first cooling flow path groove, 14 is the core mounting position, 15 is the second cooling flow path groove, 16 is the core cooling pipe mounting position, 17 is the first passage channel, and 18 is the second passage channel. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below in conjunction with specific implementation methods.

[0046] Embodiment 1

[0047] like Figure 1-Figure 9 As shown, a core plate provided in this embodiment comprises: a core plate body 1, the core plate body 1 has at least one row of core assembly mounting positions 4, the core assembly mounting positions 4 are used to mount the core assembly, each row of core assembly mounting positions 4 is divided into a plurality of mounting position groups 7, a first cooling flow path 5 and a second cooling flow path 6 connected to each mounting position group 7 are arranged in the core plate body 1, and the first cooling flow path 5 and the second cooling flow path 6 are distributed at intervals; the first cooling flow paths 5 and the second cooling flow paths 6 corresponding to adjacent mounting position groups 7 are alternately connected, such as Figure 1 The embodiment includes three installation position groups 7, which are the first installation position group, the second installation position group, and the third installation position group. The second cooling channels 5 corresponding to the adjacent first installation position group and the second installation position group are connected, and the first cooling channels 6 corresponding to the adjacent second installation position group and the third installation position group are connected. In this way, the first cooling channels 5 and the second cooling channels 6 corresponding to the adjacent installation position groups are connected alternately in sequence. During implementation, the first cooling channel 5 or the second cooling channel 6 corresponding to the adjacent installation position groups may be connected first. By alternately connecting the first cooling channel 5 and the second cooling channel 6, the cooling water is reversed between the first cooling channel 5 and the second cooling channel 6, so that the cooling water is fully in contact with the core assembly 3, so that the core assembly 3 is cooled evenly, the molding quality of the preform is ensured, and the scrap rate of the core plate is reduced, so as to achieve the purpose of lean production.

[0048] In some embodiments, each mounting position group 7 includes at least two core component mounting positions 4 , and each mounting position group 7 includes the same number of core component mounting positions 4 .

[0049] In some embodiments, the core plate body 1 is further provided with a first passage 2 and a second passage 8, the first passage 2 selectively connects the first cooling flow path 5 and the second cooling flow path 6, and the second passage 8 selectively connects the first cooling flow path 5 and the second cooling flow path 6, wherein the first cooling flow path 5 is located at the beginning or the end of the row of the core assembly installation position 4, and the second cooling flow path 6 is located at the beginning or the end of the row of the core assembly installation position 4, and any one of the first passage 2 and the second passage 8 is used as a cooling medium inflow channel, and the other is used as a cooling medium outflow channel. Specifically, the first passage 2 is connected to the first cooling flow path 5 or the second cooling flow path 6;

[0050] When the number of installation bit groups 7 is odd, the following settings are available:

[0051] When the first passage 2 is connected to the first cooling flow path 5, the second passage 8 is connected to the second cooling flow path 6;

[0052] When the first passage 2 is in communication with the second cooling flow path 6, the second passage 8 is in communication with the first cooling flow path 5;

[0053] The first cooling flow path 5 connected to the first passage 2 corresponds to the mounting position group 7 at the beginning or the end of the row. When the first cooling flow path 5 connected to the first passage 2 corresponds to the mounting position group 7 at the beginning of the row, the second cooling flow path 6 connected to the second passage 8 corresponds to the mounting position group 7 at the end of the row.

[0054] When the first cooling flow path 5 communicating with the first passage 2 corresponds to the mounting position group 7 at the end of the row, the second cooling flow path 6 communicating with the second passage 8 corresponds to the mounting position group 7 at the beginning of the row;

[0055] The second cooling flow path 6 connected to the first passage 2 corresponds to the mounting position group 7 at the beginning or the end of the row. When the second cooling flow path 6 connected to the first passage 2 corresponds to the mounting position group 7 at the beginning of the row, the first cooling flow path 5 connected to the second passage 8 corresponds to the mounting position group 7 at the end of the row.

[0056] When the second cooling flow path 6 communicating with the first passage 2 corresponds to the mounting position group 7 at the end of the row, the first cooling flow path 5 communicating with the second passage 8 corresponds to the mounting position group 7 at the beginning of the row.

[0057] When the number of installation bit groups 7 is even, the following settings are available:

[0058] When the first passage 2 is connected to the first cooling flow path 5 corresponding to the mounting position group 7 at the beginning of the row, the second passage 8 is connected to the first cooling flow path 5 corresponding to the mounting position group 7 at the end of the row;

[0059] When the first passage 2 is connected to the second cooling flow path 6 corresponding to the mounting position group 7 at the head of the row, the second passage 8 is connected to the second cooling flow path 6 corresponding to the mounting position group 7 at the end of the row.

[0060] In some embodiments, adjacent first cooling paths 5 that are interconnected are an integrated structure, and adjacent second cooling paths 6 that are interconnected are an integrated structure; adjacent first cooling paths 5 that are partially unconnected are an integrated structure blocked by a sealing member 9, and adjacent second cooling paths 6 that are partially unconnected are an integrated structure blocked by a sealing member 9.

[0061] In some embodiments, the first cooling channel 5 and the second cooling channel 6 are spaced apart in the axial direction of the core assembly installation position 4. Specifically, the first cooling channel 5 and the second cooling channel 6 are spaced apart on the same side of the core assembly installation position 4 in the axial direction.

[0062] In some embodiments, the first cooling channel 5 and the second cooling channel 6 are distributed on both sides of the core assembly installation position 4 in the radial direction. Specifically, the first cooling channel 5 and the second cooling channel 6 are located on both sides of the core assembly installation position 4 and are spaced apart in the axial direction.

[0063] In some embodiments, the first cooling channel 5 and the second cooling channel 6 are located on both sides of the row where the core assembly mounting position 4 is located, and are at the same axial height of the core assembly mounting position 4. By designing the first cooling channel 5 and the second cooling channel 6 in this way, the thickness of the core plate body 1 can be reduced.

[0064] In some embodiments, the first cooling flow path 5 and / or the second cooling flow path 6 are directly connected to the core assembly mounting position 4; and / or, the first cooling flow path 5 and / or the second cooling flow path 6 are respectively connected to the core assembly mounting position 4 through a connecting passage. The connecting passage can be a connecting through hole or a connecting member with a connecting through hole.

[0065] In some embodiments, when the number of mounting position groups 7 is two, a plugging piece 9 is provided in the second cooling flow path 6 to separate it into two parts (it can also be processed into two sections of unconnected second cooling flow paths 6), and the plugging piece 9 is located in the middle of the two mounting position groups 7, so that the cooling water can first enter from one part of the second cooling flow path 6, then start to flow to the first cooling flow path 5, and then flow from the first cooling flow path 5 to the other part of the second cooling flow path 6, and finally flow out from the other part of the second cooling flow path 6. Or a plugging piece 9 is provided in the first cooling flow path 5 to separate it into two parts (it can also be processed into two sections of unconnected first cooling flow paths 5), and the plugging piece 9 is located in the middle of the two mounting position groups 7.

[0066] The first passage 2 and the second passage 8 are respectively connected to the two first cooling channels 5 located at the beginning and the end of the row, or the first passage 2 and the second passage 8 are respectively connected to the two second cooling channels 6 located at the beginning and the end of the row.

[0067] In some embodiments, when the number of mounting position groups 7 is three, the first cooling flow path 5 is divided into two parts by the blocking piece 9 (it can also be processed into two sections of the first cooling flow path 5 that are not connected), and the second cooling flow path 6 is divided into two parts by the blocking piece 9 (it can also be processed into two sections of the second cooling flow path 6 that are not connected), wherein the blocking piece 9 in the first cooling flow path 5 is located between the second group of mounting position groups 7 and the third group of mounting position groups 7, and the blocking piece 9 in the second cooling flow path 6 is located between the first group of mounting position groups 7 and the second group of mounting position groups 7, and the cooling water can Enter from the second cooling flow path 6, then flow through the first group of mounting positions 7 to the first cooling flow path 5 corresponding to the first group of mounting positions 7, from the first cooling flow path 5 corresponding to the first group of mounting positions 7 to the first cooling flow path 5 corresponding to the second group of mounting positions, then flow through the second group of mounting positions 7 to the second cooling flow path 6 corresponding to the second group of mounting positions 7, from the second cooling flow path 6 corresponding to the second group of mounting positions 7 to the second cooling flow path 6 corresponding to the third group of mounting positions 7, then flow through the third group of mounting positions 7 to the first cooling flow path 5 corresponding to the third group of mounting positions 7. Among them, the first passage 2 is connected to the first cooling flow path 5 at the end of the row, and the second passage 8 is connected to the second cooling flow path 6 at the beginning of the row.

[0068] In some embodiments, when the number of mounting position groups 7 is four, a sealing member 9 is provided in the first cooling flow path 5 to separate the flow path into two parts, and the sealing member 9 is located between the second mounting position group 7 and the third mounting position group 7; two sealing members 9 are provided in the second cooling flow path 6 to separate the flow path into three parts, wherein the two sealing members 9 are respectively provided between the first mounting position group 7 and the second mounting position group 7, and between the third mounting position group 7 and the fourth mounting position group 7.

[0069] Or two blocking pieces 9 are arranged in the first cooling flow path 5 to separate it into three parts, and the two blocking pieces 9 are respectively arranged between the first group of mounting position groups 7 and the second group of mounting position groups 7, and between the third group of mounting position groups 7 and the fourth group of mounting position groups 7; one blocking piece 9 is arranged in the second cooling flow path 6 to separate it into two parts, and the blocking piece 9 is located between the second group of mounting position groups 7 and the third group of mounting position groups 7.

[0070] The first passage 2 and the second passage 8 are respectively connected to two first cooling channels 5 located at the beginning and the end of the row, or the first passage 2 and the second passage 8 are respectively connected to two second cooling channels 6 located at the beginning and the end of the row.

[0071] In some embodiments, when the number of mounting position groups 7 is five, two plugging members 9 are provided in the first cooling flow path 5 to separate and form three parts (it can also be processed into two sections of unconnected first cooling flow paths 5, one section of which is separated into two parts by providing a plugging member 9), wherein the two plugging members 9 are respectively provided between the second group of mounting position groups 7 and the third group of mounting position groups 7, and between the fifth group of mounting position groups 7 and the sixth group of mounting position groups 7, and two plugging members 9 are provided in the second cooling flow path 6 to separate and form three parts, wherein the two plugging members 9 are respectively provided between the first group of mounting position groups 7 and the second group of mounting position groups 7, and between the third group of mounting position groups 7 and the fourth group of mounting position groups 7. Among them, the first passage 2 is connected to the first cooling flow path 5 at the end of the row, and the second passage 8 is connected to the second cooling flow path 6 at the beginning of the row.

[0072] In some embodiments, when the number of mounting position groups 7 is six, two sealing members 9 are arranged in the first cooling flow path 5 to separate the first cooling flow path 5 into three parts, and the two sealing members 9 are arranged between the second mounting position group 7 and the third mounting position group 7, and between the fourth mounting position group 7 and the fifth mounting position group 7, respectively; three sealing members 9 are arranged in the second cooling flow path 6 to separate the first cooling flow path 6 into four parts, and the three sealing members 9 are arranged between the first mounting position group 7 and the second mounting position group 7, between the third mounting position group 7 and the fourth mounting position group 7, and between the fifth mounting position group 7 and the sixth mounting position group 7, respectively.

[0073] Or three blocking pieces 9 are arranged in the first cooling flow path 5 to separate it into four parts, and the three blocking pieces 9 are respectively arranged between the first group of mounting position groups 7 and the second group of mounting position groups 7, between the third group of mounting position groups 7 and the fourth group of mounting position groups 7, and between the fifth group of mounting position groups 7 and the sixth group of mounting position groups 7; two blocking pieces 9 are arranged in the second cooling flow path 6 to separate it into three parts, and the two blocking pieces 9 are respectively arranged between the second group of mounting position groups 7 and the third group of mounting position groups 7, and between the fourth group of mounting position groups 7 and the fifth group of mounting position groups 7.

[0074] The first passage 2 and the second passage 8 are respectively connected to two first cooling channels 5 located at the beginning and the end of the row, or the first passage 2 and the second passage 8 are respectively connected to two second cooling channels 6 located at the beginning and the end of the row.

[0075] In the above embodiment, the ends of the first cooling flow path 5 located at the beginning and the end of the row connected to the outside of the core plate body 1 are blocked by the blocking piece 9, and the ends of the second cooling flow path 6 located at the beginning and the end of the row connected to the outside of the core plate body 1 are blocked by the blocking piece 9.

[0076] Embodiment 2

[0077] like Figure 1As shown, a core plate assembly provided in this embodiment includes a core plate, and a core assembly 3 is installed in each core assembly installation position 4 of the core plate body 1. The core assembly 3 has a core cooling channel and a first end and a second end located at both ends of the core cooling channel, and the first end and the second end are respectively connected to the first cooling flow path 5 and the second cooling flow path 6. By alternately connecting the first cooling flow path 5 and the second cooling flow path 6, the cooling water is reversed between the first cooling flow path 5 and the second cooling flow path 6, so that the cooling water is fully in contact with the core assembly 3, so that the core assembly 3 is evenly cooled, the molding quality of the bottle blank is guaranteed, and at the same time, the scrap rate of the core plate is reduced, so as to achieve the purpose of lean production.

[0078] The parts not mentioned in this embodiment are the same as those in the first embodiment.

[0079] Embodiment 3

[0080] The present embodiment provides a method for manufacturing a core plate, wherein at least one row of core assembly mounting positions 4, a first channel and a second channel are processed on the core plate, and the first channel and the second channel serve as a first cooling channel 5 and a second cooling channel 6, respectively;

[0081] Processing a third channel and a fourth channel on the core plate, the third channel and the fourth channel serving as a first passage 2 and a second passage 8 respectively; comprising the following steps:

[0082] S1, according to the preset number of cavities and the mold frame specifications of the injection molding machine, processing m rows and n columns of core assembly installation positions 4 on the core plate;

[0083] S2, dividing the n core assembly installation positions 4 of each row into x groups according to the arrangement of the core assembly installation positions 4 of the core plate, the design of the manifold plate of the hot runner, and the pressure and flow rate of the cooling water;

[0084] Among them, the x-group core assembly installation position 4 experiences x-1 cooling water reversals;

[0085] S3, according to the value of x, determining the structure of the first cooling channel and the second cooling channel in each row of the core assembly installation position, and determining the structure of the first channel and the second channel;

[0086] S4. According to the determined structures of the first cooling passage and the second cooling passage, the first cooling passage and the second cooling passage sequentially penetrated by the core assembly mounting position are processed. According to the determined structures of the first passage and the second passage, the first passage 2 and the second passage 8 penetrating m rows of the first cooling passage or the second cooling passage are processed.

[0087] The parts not mentioned in this embodiment are the same as those in the first embodiment.

[0088] Embodiment 4

[0089] This embodiment provides another method for manufacturing a core plate. Figure 10-11 As shown,

[0090] A method for manufacturing a core plate comprises the following steps:

[0091] Processing a first plate 10 having a first cooling channel 13 and m rows and n columns of mold core mounting positions 14;

[0092] Processing a second plate 11 having a first cooling channel groove 13, a second cooling channel groove 15 and m rows and n columns of core cooling pipe mounting positions 16;

[0093] Processing a third plate 12 having a second cooling channel 15;

[0094] The first plate 10 is processed with a first passage hole 17 and a second passage hole 18, or the first plate 10 is processed with either the first passage hole 17 or the second passage hole 18;

[0095] The second plate 11 is processed with a first passage hole 17 and a second passage hole 18, or the second plate 11 is processed with either the first passage hole 17 or the second passage hole 18;

[0096] The third plate 12 is processed with a first passage hole 17 and a second passage hole 18, or the second plate 11 is processed with a first passage hole 17 and a second passage hole 18;

[0097] The first plate 10, the second plate 11 and the third plate 12 are sequentially stacked and welded, so that the first cooling flow path grooves 13 of the first plate 10 and the second plate 11 are butted to form a first cooling flow path, the m rows and n columns of the core mounting positions 14 of the first plate 10 and the m rows and n columns of the core cooling pipe mounting positions 16 of the second plate 11 are butted to form a core assembly mounting position, and the second cooling flow path grooves 15 of the second plate 11 and the third plate 12 are butted to form a second cooling flow path;

[0098] The first passage holes 17 and the second passage holes 18 of the first plate 10 and the second plate 11 are butted together to form a first passage and a second passage, so as to form a core plate.

[0099] In some embodiments, the first passage holes 17 of the first plate 10 and the second plate 11 are connected to form a first passage, and the second passage holes 18 of the second plate 11 and the third plate 12 are connected to form a second passage.

[0100] In some embodiments, the second passage holes 18 of the first plate 10 and the second plate 11 are connected to form a second passage, and the first passage holes 17 of the second plate 11 and the third plate 12 are connected to form a first hole.

[0101] Specifically, the cross-sections of the first cooling channel 13 and the second cooling channel 15 are semicircular, the core mounting position 14 and the core cooling pipe mounting position 16 are stepped holes, and the first passage channel 17 and the second passage channel 18 are semicircular holes.

[0102] The first plate 10, the second plate 11 and the third plate 12 are combined by brazing, vacuum welding or other welding methods to obtain a core plate.

[0103] Each structural feature on the first plate 10, the second plate 11 and the third plate 12 is obtained by machining, and can also be obtained by additive manufacturing; in other embodiments, the core plate can be directly obtained by additive manufacturing.

[0104] When designing the sheet material and its various structural features, the sheet material composed of the core plate is divided and designed, giving priority to the convenience and feasibility of machining, such as avoiding drilling long through holes and curved holes in the sheet material and adding plugging parts after welding.

[0105] The parts not mentioned in this embodiment are the same as those in the first embodiment.

[0106] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A core board, characterized in that: include: The core plate body has at least one row of core component mounting positions, each row of core component mounting positions is divided into a number of mounting position groups, a first cooling flow path and a second cooling flow path connected to each mounting position group are arranged in the core plate body, and the first cooling flow path and the second cooling flow path are distributed at intervals; the first cooling flow paths and the second cooling flow paths corresponding to adjacent mounting position groups are alternately connected.

2. A core board according to claim 1, characterized in that: Each installation position group includes at least two core component installation positions, and each installation position group includes the same number of core component installation positions.

3. A core board according to claim 1, characterized in that: The core plate body is also provided with a first passage and a second passage, the first passage selectively connects the first cooling flow path and the second cooling flow path, and the second passage selectively connects the first cooling flow path and the second cooling flow path, wherein the first cooling flow path is located at the beginning or the end of the row of the core assembly installation position, and the second cooling flow path is located at the beginning or the end of the row of the core assembly installation position, any one of the first passage and the second passage serves as a cooling medium inflow channel, and the other serves as a cooling medium outflow channel.

4. A core board according to claim 1, characterized in that: The mutually connected adjacent first cooling flow paths are an integrated structure, and the mutually connected adjacent second cooling flow paths are an integrated structure; the partially unconnected adjacent first cooling flow paths are an integrated structure blocked by a blocking piece, and the partially unconnected adjacent second cooling flow paths are an integrated structure blocked by a blocking piece.

5. A core board according to claim 1, characterized in that: The first cooling channel and the second cooling channel are spaced apart and distributed in the axial direction of the core assembly installation position.

6. A core board according to claim 1, characterized in that: The first cooling channel and the second cooling channel are located on both sides of the row where the core assembly installation position is located, and are at the same height in the axial direction of the core assembly installation position.

7. A core board according to claim 1, characterized in that: The first cooling flow path and / or the second cooling flow path are directly connected to the core assembly installation position; and / or the first cooling flow path and / or the second cooling flow path are connected to the core assembly installation position through connecting passages respectively.

8. A core plate assembly, characterized in that: A core plate comprising any one of claims 1 to 7, wherein a core assembly is installed in each core assembly installation position of the core plate body, the core assembly having a core cooling channel and a first end and a second end located at both ends of the core cooling channel, the first end and the second end being connected to a first cooling flow path and a second cooling flow path, respectively.

9. A method for manufacturing a core plate, comprising processing at least one row of core assembly mounting positions, a first channel and a second channel on the core plate, the first channel and the second channel serving as a first cooling flow path and a second cooling flow path respectively; processing a third channel and a fourth channel on the core plate, the third channel and the fourth channel serving as a first passage and a second passage respectively; characterized in that: The following steps are involved: S1. According to the preset number of cavities and the mold frame specifications of the injection molding machine, m rows and n columns of mold core assembly installation positions are processed on the mold core plate; S2. Divide the n core assembly installation positions in each row into x groups according to the arrangement of the core assembly installation positions of the core plate, the design of the manifold plate of the hot runner, and the pressure and flow rate of the cooling water; S3, according to the value of x, determining the structure of the first cooling channel and the second cooling channel in each row of the core assembly installation position, and determining the structure of the first channel and the second channel; S4. According to the determined structures of the first cooling passage and the second cooling passage, the first cooling passage and the second cooling passage sequentially penetrated by the core assembly mounting position are processed; according to the determined structures of the first passage and the second passage, the first passage and the second passage penetrating m rows of the first cooling passage or the second cooling passage are processed.

10. A method for manufacturing a core plate, characterized in that: The following steps are involved: Processing a first plate having a first cooling channel and m rows and n columns of mold core mounting positions; Processing a second plate having a first cooling flow channel groove, a second cooling flow channel groove and m rows and n columns of core cooling pipe mounting positions; Processing a third plate having a second cooling flow channel; The first plate is processed with a first passage hole and a second passage hole, or the first plate is selectively processed with the first passage hole and the second passage hole; The second plate is processed with a first passage hole and a second passage hole, or the second plate is processed with the first passage hole and the second passage hole; The third plate is processed with a first passage hole and a second passage hole, or the second plate is processed with the first passage hole and the second passage hole; The first plate, the second plate and the third plate are sequentially stacked and welded, so that the first cooling flow path grooves of the first plate and the second plate are butted to form a first cooling flow path, the m rows and n columns of the core mounting positions of the first plate and the m rows and n columns of the core cooling pipe mounting positions of the second plate are butted to form a core assembly mounting position, and the second cooling flow path grooves of the second plate and the third plate are butted to form a second cooling flow path; The first passage holes and the second passage holes of the first plate and the second plate are butted together to form the first passage and the second passage; or the first passage holes of the first plate and the second plate are butted together to form a first passage, and the second passage holes of the second plate and the third plate are butted together to form a second passage; or the second passage holes of the first plate and the second plate are butted together to form the second passage, and the first passage holes of the second plate and the third plate are butted together to form the first hole; To form the core board described in any one of claims 1-7.

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