Quick-changing device for mold core of mold

The design of the quick mold core change device solves the problems of time-consuming and labor-intensive mold core replacement and safety hazards, and realizes rapid mold core replacement and efficient production.

CN223750113UActive Publication Date: 2026-01-02ZHEJIANG HUASHENG MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202520701735.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-01-02
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

When replacing the existing mold core, it is necessary to disconnect the hydraulic pipeline from the flange connection of the mold body and disassemble the mechanical coupling between the ejector mechanism and the injection molding machine push rod. The mold is heavy as a whole, which makes hoisting time-consuming and labor-intensive and poses safety hazards, thus affecting production efficiency.

Method used

Design a quick-change mold core device, including a moving mold and a fixed mold, and set up an installation component, a sealing component, a spraying component, a feeding component and an ejection component. Through the coordinated work of these components, the quick change of the mold core and the shaping and processing of materials can be realized.

Benefits of technology

It improves the convenience of mold core replacement and production efficiency, reduces manpower consumption, ensures safety, and eliminates the need for frequent disassembly of the feed gun, thus improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick-changing device for a mold core of a mold, and relates to the technical field of quick-changing of the mold core of the mold. The mold comprises a movable mold and a fixed mold, wherein the movable mold and the fixed mold are respectively provided with a mounting assembly, a sealing assembly and a spraying assembly; the fixed mold is provided with a feeding assembly and an ejection assembly. According to the utility model, the mounting assembly is respectively mounted with the movable mold and the fixed mold, so that when the movable mold is attached to the fixed mold, the cavity is formed in the mounting assembly, and the interior of the feeding assembly is communicated with the interior of the mounting assembly, so that the feeding assembly feeds materials to the interior of the mounting assembly; according to the forming mold, the movable mold and the fixed mold are arranged, so that materials are formed in the mounting assembly, workpieces in specific shapes can be machined, when workpieces in different shapes need to be machined, only the mounting assembly needs to be detached from the movable mold and the fixed mold, and a new mounting assembly needs to be replaced, time and labor are saved, and the production efficiency of the workpieces is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to mould mould core quick change technical field, and specifically, it is especially related to a mould mould core quick change device. BACKGROUND

[0002] Mould core is the core component of mould which directly determines the shape, size precision and surface quality of product, usually located in the key forming area of mould cavity, through cooperation with mould cavity, the final shape of plastic, metal and other materials is formed, high-precision mould core ensures that the product size error is in micron level, which meets the demand of precision manufacturing.

[0003] The existing integral mould frame adopts rigid coupling design, when the mould is replaced, the flange connection of the hydraulic pipeline and the mould body needs to be released, and the mechanical coupling of the ejector rod mechanism and the injection molding machine push rod needs to be disassembled, since the mould is heavy as a whole, it needs to be lifted and moved, and there are safety hazards in the lifting process, which is time-consuming and laborious, and affects the production efficiency. UTILITY MODEL CONTENTS

[0004] In view of the problems that when the mould is replaced, the flange connection of the hydraulic pipeline and the mould body needs to be released, and the mechanical coupling of the ejector rod mechanism and the injection molding machine push rod needs to be disassembled, since the mould is heavy as a whole, it needs to be lifted and moved, and there are safety hazards in the lifting process, which is time-consuming and laborious, and affects the production efficiency, the utility model provides a mould mould core quick change device to overcome the above technical problems existing in the prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model relates to a mould mould core quick change device, which comprises a mould moving and a mould fixing:

[0007] The mould moving and the mould fixing are provided with mounting assemblies, sealing assemblies and spraying assemblies;

[0008] The mould fixing is provided with feeding assemblies and ejection assemblies;

[0009] The mounting assemblies are fixedly installed on the opposite sides of the mould moving and the mould fixing respectively, so that the mould moving and the mould fixing are opened and closed to the mould core;

[0010] The sealing assemblies are fixedly installed on the opposite sides of the mould moving and the mould fixing respectively, so that the sealing assemblies seal the gap between the mould moving and the mould fixing;

[0011] The spraying assemblies are provided with water spraying ends on the outer surfaces of the mounting assemblies, so that the spraying assemblies cool the materials in the mounting assemblies;

[0012] The feeding assembly is communicated with the inside of the mounting assembly, so that the feeding assembly feeds the inside of the mounting assembly.

[0013] The ejection assembly is communicated with the inside of the mounting assembly at one end, so that the ejection assembly ejects the molded part in the inside of the mounting assembly.

[0014] Further, the mounting assembly comprises a mounting groove, which is arranged in the inside of the fixed mold, and a fixed mold core is arranged in the inside of the mounting groove, a movable mold core is slidably arranged in the inside of the fixed mold core, and one side of the movable mold core is fixedly installed with one side of the movable mold.

[0015] Further, the sealing assembly comprises a fixed mold aluminum pressing frame and a movable mold aluminum pressing frame, one side of the fixed mold aluminum pressing frame is fixedly installed with one side of the fixed mold, a fixed mold sealing pressing strip is connected to one side of the fixed mold aluminum pressing frame, a mold closing sealing pressing strip is connected to the other side of the fixed mold aluminum pressing frame, and one side of the fixed mold sealing pressing strip is in close contact with one side of the fixed mold.

[0016] One side of the movable mold aluminum pressing frame is fixedly installed with one side of the movable mold, a movable mold sealing pressing strip is connected to one side of the movable mold aluminum pressing frame, one side of the movable mold sealing pressing strip is in close contact with one side of the movable mold, and the other side of the movable mold aluminum pressing frame is in close contact with one side of the mold closing sealing pressing strip.

[0017] Further, the spraying assembly comprises two groups of connecting heads, one side of each group of the connecting heads is fixedly installed with one side of the movable mold and the fixed mold, one end of one group of the connecting heads is fixedly installed with a movable mold spraying copper pipe, and one end of the other group of the connecting heads is fixedly installed with a fixed mold spraying copper pipe.

[0018] Further, the feeding assembly comprises a fixed buckle, one side of the fixed buckle is fixedly installed with one side of the fixed mold, a feeding gun is fixedly installed in the inside of the fixed buckle, and one end of the feeding gun is communicated with the inside of the fixed mold core.

[0019] Further, the ejection assembly comprises a fixed seat, one side of the fixed seat is fixedly installed with one side of the fixed mold, a jacking rod is slidably arranged in the inside of the fixed seat, and the outer surface of the jacking rod is slidably connected with the inside of the fixed mold core.

[0020] Further, one side of the movable mold is fixedly installed with a positioning sleeve, a positioning rod is slidably connected in the inside of the positioning sleeve, and one end of the positioning rod is fixedly connected with one side of the fixed mold.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model discloses a mounting assembly is installed with the movable die and fixed die respectively, and then when the movable die and fixed die are pasted, the inside of mounting assembly forms a cavity, because the inside of feeding assembly is communicated with the inside of mounting assembly, to make feeding assembly to the inside of mounting assembly, and then make the material complete shaping in the inside of mounting assembly, and then can process the workpiece of specific shape, when needing to process the workpiece of different shape, only need to detach mounting assembly from movable die and fixed die, and replace new mounting assembly, it is more time -saving and laborsaving, to improve the production efficiency of workpiece.

[0023] 2. The utility model discloses a fixed die core is inserted into the inside of installation slot, makes its one side cooperation bolt installation in the inside of installation slot, then one side cooperation bolt of movable die core is installed in one side of movable die, to make movable die core can enter the inside of fixed die core or remove its inside along with the movement of movable die, and then when the outer surface of movable die core is in-depth in the inside of fixed die core, can make cavity between it, to be convenient for shaping the material that enters its inside.

[0024] 3. The utility model discloses a feeding gun is started to the cavity between movable die core and fixed die core, to make the material heap full cavity inside between it, to be able to shape the flowing material, because one end of feeding gun is communicated with the inside of fixed die core, and is movably arranged, and then when fixed die core is disassembled, can not influence the normal use of feeding gun, to need not to disassemble feeding gun, improved the convenience of replacing fixed die core.

[0025] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawing of the embodiment to introduce briefly, obviously, the drawing in the following description only is some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0027] Figure 1 It is the structure schematic drawing of the movable die and fixed die of the utility model under the die closing state;

[0028] Figure 2 It is the explosion schematic diagram of the mounting assembly of the utility model;

[0029] Figure 3 It is the explosion structure schematic diagram of the sealing assembly of the utility model;

[0030] Figure 4 It is the Figure 3An enlarged schematic view of the local structure at middle A;

[0031] Figure 5 A structure schematic view under a rear view angle of the movable mold of the utility model;

[0032] Figure 6 A structure schematic view under a rear view angle of the movable mold of the utility model; Figure 5 An enlarged schematic view of the local structure at middle B;

[0033] Figure 7 An exploded schematic view of the spraying assembly of the utility model;

[0034] Figure 8 A structure schematic view under a front view angle of the movable mold of the utility model; Figure 7 An enlarged schematic view of the local structure at middle C;

[0035] Figure 9 A structure schematic view under a front view angle of the movable mold of the utility model; Figure 7 An enlarged schematic view of the local structure at middle D;

[0036] Figure 10 A structure schematic view under a front view angle of the movable mold of the utility model.

[0037] In the drawings, the component list represented by each sign is as follows:

[0038] 1, movable mold; 2, fixed mold; 3, mounting assembly; 301, mounting groove; 302, fixed mold core; 303, movable mold core; 4, sealing assembly; 401, fixed mold aluminum pressing frame; 402, movable mold aluminum pressing frame; 403, fixed mold sealing pressing strip; 404, combined mold sealing pressing strip; 405, movable mold sealing pressing strip; 5, spraying assembly; 501, connecting head; 502, movable mold spraying copper pipe; 503, fixed mold spraying copper pipe; 6, feeding assembly; 601, fixed buckle; 602, feeding gun; 7, ejection assembly; 701, fixed seat; 702, ejector pin; 8, positioning sleeve; 9, positioning rod. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0040] In the description of the utility model, it is understood that the terms "open hole", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated component or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0041] Please refer to Figures 1-10 The utility model discloses a mould core quick change device, including shift die 1 and fixed die 2:

[0042] The shift die 1 and fixed die 2 are provided with mounting assembly 3, sealing assembly 4 and spray assembly 5 on both sides;

[0043] The fixed die 2 is provided with feeding assembly 6 and ejection assembly 7 respectively;

[0044] The mounting assembly 3 is fixedly installed with one side of shift die 1 and fixed die 2 respectively on the opposite side, so that the shift die 1 and fixed die 2 open and close the mold core;

[0045] The sealing assembly 4 is fixedly installed with one side of shift die 1 and fixed die 2 respectively on the opposite side, so that the sealing assembly 4 seals the gap between shift die 1 and fixed die 2;

[0046] The spray assembly 5 is provided with a water spraying end on the outer surface of mounting assembly 3, so that the spray assembly 5 cools the material in mounting assembly 3;

[0047] The feeding assembly 6 is communicated with the inside of mounting assembly 3, so that the feeding assembly 6 feeds the inside of mounting assembly 3;

[0048] The ejection assembly 7 is communicated with the inside of mounting assembly 3 on one end, so that the ejection assembly 7 ejects the molded part in the inside of mounting assembly 3.

[0049] In use, by installing mounting assembly 3 with shift die 1 and fixed die 2 respectively, when shift die 1 and fixed die 2 are pasted, the inside of mounting assembly 3 forms a cavity, because the inside of feeding assembly 6 is communicated with the inside of mounting assembly 3, so that feeding assembly 6 feeds the inside of mounting assembly 3, then start spray assembly 5, make it spray cooling to the outer surface of mounting assembly 3, so that low temperature is conducted to the inside of mounting assembly 3, so that the material in the inside is cooled and shaped, to complete the shaping processing of workpiece, then start shift die 1, make it drive mounting assembly 3 to move, so that mounting assembly 3 is separated, then start ejection assembly 7, make it eject the shaped workpiece in the inside of mounting assembly 3, which is more convenient.

[0050] The utility model discloses a through installing component 3 with movable die 1 and fixed die 2 respectively, when movable die 1 and fixed die 2 are pasted, the inside of installing component 3 forms cavity, the inside of feeding assembly 6 is communicated with the inside of installing component 3, so that feeding assembly 6 feeds to the inside of installing component 3, and then the material is shaped in the inside of installing component 3, and then the workpiece of specific shape can be processed, when needing to process the workpiece of different shape, just installing component 3 is detached from movable die 1 and fixed die 2, and replaces new installing component 3, it is more time -saving and laborsaving to improve the production efficiency of workpiece.

[0051] In an embodiment, for the above-mentioned installing component 3, the installing component 3 includes an installation groove 301, the installation groove 301 is opened in the inside of the fixed die 2, the inside of the installation groove 301 is fixedly installed with a fixed die mold core 302, the inside of the fixed die mold core 302 is slidably provided with a movable die mold core 303, one side of the movable die mold core 303 is fixedly installed with one side of the movable die 1.

[0052] By inserting the fixed die mold core 302 into the inside of the installation groove 301, one side of the fixed die mold core 302 is installed in the inside of the installation groove 301 through a bolt, and then one side of the movable die mold core 303 is installed on one side of the movable die 1 through a bolt, so that the movable die mold core 303 can enter or move out of the inside of the fixed die mold core 302 along with the movement of the movable die 1, and when the outer surface of the movable die mold core 303 is deeply inserted into the inside of the fixed die mold core 302, a cavity is formed between the movable die mold core 303 and the fixed die mold core 302, thereby facilitating the shaping of the material entering the cavity.

[0053] In an embodiment, for the above-mentioned sealing assembly 4, the sealing assembly 4 includes a fixed die aluminum pressing frame 401 and a movable die aluminum pressing frame 402, one side of the fixed die aluminum pressing frame 401 is fixedly installed with one side of the fixed die 2, one side of the fixed die aluminum pressing frame 401 is provided with a fixed die sealing pressing strip 403 through clamping, the other side of the fixed die aluminum pressing frame 401 is provided with a die sealing pressing strip 404 through clamping, one side of the fixed die sealing pressing strip 403 is pasted with one side of the fixed die 2;

[0054] One side of the movable die aluminum pressing frame 402 is fixedly installed with one side of the movable die 1, one side of the movable die aluminum pressing frame 402 is provided with a movable die sealing pressing strip 405 through clamping, one side of the movable die sealing pressing strip 405 is pasted with one side of the movable die 1, and the other side of the movable die aluminum pressing frame 402 is pasted with one side of the die sealing pressing strip 404.

[0055] When the movable mold 1 moves to one side of the fixed mold 2, the movable mold aluminum pressing frame 402 installed on one side can be moved to fit the one side of the mold sealing pressing strip 404 during the movement, so that the mold sealing pressing strip 404 is extruded under the pressure of the movable mold 1. Since the movable mold sealing pressing strip 405 is arranged between the movable mold 1 and the movable mold aluminum pressing frame 402, and the fixed mold sealing pressing strip 403 is arranged between the fixed mold 2 and the fixed mold aluminum pressing frame 401, the gap between the movable mold 1 and the fixed mold 2 can be sealed, thereby improving the sealing performance of the mold core quick-changing device.

[0056] In one embodiment, for the above-mentioned spray assembly 5, the spray assembly 5 includes two groups of connecting heads 501, one side of each group of connecting heads 501 is fixedly installed on one side of the movable mold 1 and the fixed mold 2 respectively, one end of one group of connecting heads 501 is fixedly installed with a movable mold spray copper pipe 502, and one end of the other group of connecting heads 501 is fixedly installed with a fixed mold spray copper pipe 503.

[0057] When the movable mold 1 drives the movable mold core 303 to move to the fixed mold core 302 installed inside the fixed mold 2 and forms a cavity inside, the feeding assembly 6 is used to feed material inside, so that the heat of the material accumulates inside, and the two groups of connecting heads 501 are respectively communicated with an external water source, so that the water flows through the fixed mold spray copper pipe 503 and the movable mold spray copper pipe 502 to spray and cool the outer surfaces of the movable mold core 303 and the fixed mold core 302, thereby improving the production efficiency of the workpiece.

[0058] In one embodiment, for the above-mentioned feeding assembly 6, the feeding assembly 6 includes a fixed buckle 601, one side of the fixed buckle 601 is fixedly installed on one side of the fixed mold 2, and a feeding gun 602 is fixedly installed inside the fixed buckle 601. One end of the feeding gun 602 is communicated with the inside of the fixed mold core 302.

[0059] When the movable mold core 303 is deeply inserted into the fixed mold core 302, and the movable mold 1 and the fixed mold 2 are in a fitted state, the feeding gun 602 is started to feed material to the cavity between the movable mold core 303 and the fixed mold core 302, so that the material fills the inside of the cavity between them, thereby shaping the flowing material. Since one end of the feeding gun 602 is communicated with the inside of the fixed mold core 302 and is movably arranged, when the fixed mold core 302 is disassembled, the normal use of the feeding gun 602 is not affected, so that the feeding gun 602 does not need to be disassembled, thereby improving the convenience of replacing the fixed mold core 302.

[0060] In one embodiment, for the above-mentioned ejection assembly 7, the ejection assembly 7 comprises a fixed seat 701, one side of the fixed seat 701 is fixedly installed with one side of the fixed mold 2, the inside of the fixed seat 701 is slidably provided with a ejector rod 702, the outer surface of the ejector rod 702 is slidably connected with the inside of the fixed mold core 302.

[0061] One end of the ejector rod 702 is installed with an external driving assembly (such as: an electric push or the like reciprocating movable device), so as to demold the workpiece formed inside the fixed mold core 302, and facilitate taking out the workpiece from the inside of the fixed mold core 302.

[0062] In one embodiment, for the above-mentioned moving mold 1, one side of the moving mold 1 is fixedly installed with a positioning sleeve 8, the inside of the positioning sleeve 8 is slidably connected with a positioning rod 9, one end of the positioning rod 9 is fixedly connected with one side of the fixed mold 2.

[0063] When the moving mold 1 moves, the positioning sleeve 8 installed on one side is sleeved on the outer surface of the positioning rod 9, so as to position the moving direction and position of the moving mold 1, thereby facilitating the adhesion between the moving mold 1 and the fixed mold 2, and improving the stability of the moving mold 1 during movement.

[0064] Through the above technical scheme, 1, by installing the installation assembly 3 with the moving mold 1 and the fixed mold 2 respectively, when the moving mold 1 and the fixed mold 2 are adhered, the inside of the installation assembly 3 forms a cavity, since the inside of the feeding assembly 6 is communicated with the inside of the installation assembly 3, the feeding assembly 6 feeds into the inside of the installation assembly 3, so that the material is shaped in the inside of the installation assembly 3, thereby being able to process workpieces of specific shapes, when different shapes of workpieces need to be processed, the installation assembly 3 can be removed from the moving mold 1 and the fixed mold 2, and a new installation assembly 3 can be replaced, which is time-saving and labor-saving, thereby improving the production efficiency of the workpiece;

[0065] 2, by inserting the fixed mold core 302 into the inside of the installation groove 301, one side of the fixed mold core 302 is installed in the inside of the installation groove 301 by cooperating with the bolt, and one side of the moving mold core 303 is installed on one side of the moving mold 1 by cooperating with the bolt, so that the moving mold core 303 can enter or move out of the inside of the fixed mold core 302 with the movement of the moving mold 1, and when the outer surface of the moving mold core 303 is deeply inserted into the inside of the fixed mold core 302, a cavity is formed between them, thereby facilitating the shaping of the material entering the inside.

[0066] 3. The feeding gun 602 is started to feed the cavity between the movable mold core 303 and the fixed mold core 302, so that the material fills the cavity, and the flowing material can be shaped. Since one end of the feeding gun 602 is communicated with the inside of the fixed mold core 302 and is movably arranged, when the fixed mold core 302 is disassembled, the normal use of the feeding gun 602 is not affected, so that the feeding gun 602 does not need to be disassembled, and the convenience of replacing the fixed mold core 302 is improved.

[0067] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A mold core quick-change device, comprising a movable mold (1) and a fixed mold (2), characterized in that: the movable mold (1) and the fixed mold (2) are provided with a mounting assembly (3), a sealing assembly (4) and a spraying assembly (5); the fixed mold (2) is provided with a feeding assembly (6) and an ejection assembly (7); the mounting assembly (3) is fixedly installed on one side of the movable mold (1) and the fixed mold (2) respectively, so that the movable mold (1) and the fixed mold (2) open and close the mold core; the sealing assembly (4) is fixedly installed on one side of the movable mold (1) and the fixed mold (2) respectively, so that the sealing assembly (4) seals the gap between the movable mold (1) and the fixed mold (2); the spraying assembly (5) is provided on the outer surface of the mounting assembly (3) to cool the material in the mounting assembly (3); the feeding assembly (6) is connected with the inside of the mounting assembly (3) to feed the inside of the mounting assembly (3); and the ejection assembly (7) is connected with the inside of the mounting assembly (3) to eject the molded part in the mounting assembly (3). The mounting assembly (3) comprises a mounting groove (301) which is arranged in the inside of the fixed mold (2), a fixed mold core (302) is fixedly installed in the inside of the mounting groove (301), a movable mold core (303) is slidably arranged in the inside of the fixed mold core (302), and one side of the movable mold core (303) is fixedly installed on one side of the movable mold (1). The sealing assembly (4) comprises a fixed mold aluminum pressure frame (401) and a movable mold aluminum pressure frame (402), one side of the fixed mold aluminum pressure frame (401) is fixedly installed on one side of the fixed mold (2), one side of the fixed mold aluminum pressure frame (401) is connected with the fixed mold sealing pressure strip (403), the other side of the fixed mold aluminum pressure frame (401) is connected with the clamping sealing pressure strip (404), and one side of the fixed mold sealing pressure strip (403) is attached to one side of the fixed mold (2). One side of the movable mold aluminum pressure frame (402) is fixedly installed on one side of the movable mold (1), one side of the movable mold aluminum pressure frame (402) is connected with the movable mold sealing pressure strip (405), one side of the movable mold sealing pressure strip (405) is attached to one side of the movable mold (1), and the other side of the movable mold aluminum pressure frame (402) is attached to one side of the clamping sealing pressure strip (404). The spraying assembly (5) comprises two groups of connecting heads (501), one end of one group of the connecting heads (501) is fixedly installed with the movable mold spraying copper pipe (502), and one end of the other group of the connecting heads (501) is fixedly installed with the fixed mold spraying copper pipe (503). ​ ​ ​ 2. The mold core quick change device of claim 1, wherein, ​ 3. The mold core quick change device of claim 1, wherein, ​ ​ 4. The mold core quick change device of claim 1, wherein, ​ 5. The mold core quick change device of claim 2, wherein, The feeding assembly (6) comprises a fixed buckle (601), one side of the fixed buckle (601) is fixedly installed with one side of the fixed mold (2), and the inside of the fixed buckle (601) is fixedly installed with a feeding gun (602), one end of the feeding gun (602) is communicated with the inside of the fixed mold core (302).

6. The mold core quick change device of claim 2, wherein, The ejection assembly (7) comprises a fixed seat (701), one side of the fixed seat (701) is fixedly installed with one side of the fixed mold (2), and the inside of the fixed seat (701) is slidably provided with a ejector rod (702), and the outer surface of the ejector rod (702) is slidably connected with the inside of the fixed mold core (302).

7. The mold core quick change device of claim 1, wherein, One side of the mold moving device (1) is fixedly installed with a positioning sleeve (8), the inside of the positioning sleeve (8) is slidably connected with a positioning rod (9), and one end of the positioning rod (9) is fixedly connected with one side of the fixed mold (2).