Fixed mold core structure

Abstract

The utility model discloses a fixed mold core structure in the field of mold manufacturing, which comprises a fixed mold and an insert detachably mounted in the middle of the fixed mold, and solves the problems of complicated insert replacement and low heat dissipation efficiency of the traditional mold through innovative design. A limiting block extending along the axis is circumferentially arranged on the inner wall of the mounting groove of the fixed mold; a slideway and a limiting groove are correspondingly formed in the outer side of the insert bottom inserting rod. During installation, the insertion rod is inserted into the installation groove to enable the sliding way to be sleeved on the limiting block to slide, the limiting block is clamped into the limiting groove to achieve locking after the insert is rotated, a quick disassembly and assembly structure without tools is formed, replacement time is remarkably shortened, and labor cost is reduced. Meanwhile, the fixed mold is provided with an annular groove coaxial with the mounting groove, a heat-conducting fin is arranged in the fixed mold, an annular bump at the bottom of the insert is clamped into the annular groove and is in contact with the heat-conducting fin, and an efficient heat conduction path is constructed, so that heat of the insert is quickly transferred to the fixed mold through the bump and the heat-conducting fin, the mold temperature is effectively reduced, and mold damage and product quality defects caused by high temperature are reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically a fixed mold core structure. Background Technology

[0002] In the mold manufacturing industry, the fixed mold core structure is a crucial component of the mold, and its performance directly impacts product quality and production efficiency. In traditional fixed mold core structures, inserts are typically mounted to the fixed mold using bolts or other complex fixing methods. This installation method makes disassembly and reassembly cumbersome when inserts need to be replaced, requiring specialized tools and consuming significant time and manpower, severely impacting production efficiency. Furthermore, the connection structure between the insert and the fixed mold is not robust enough; during mold operation, the insert is prone to displacement or wobbling, leading to a decrease in product molding quality and dimensional accuracy.

[0003] Furthermore, molds generate a significant amount of heat during operation. If this heat cannot be dissipated effectively and promptly, the mold temperature will become excessively high, affecting both the mold's lifespan and product quality. In traditional fixed-mold core structures, heat dissipation primarily relies on the mold's own cooling system, which has low efficiency and is insufficient to meet the demands of high-speed production. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a fixed mold core structure, which can effectively solve the technical problems of troublesome replacement of inserts and poor heat dissipation of current fixed mold cores.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A fixed mold core structure includes a fixed mold and an insert. The insert is detachably installed in the middle of the fixed mold. The fixed mold has an installation groove for installing the insert. The inner wall of the installation groove is provided with a plurality of limiting blocks extending along the axial direction. The bottom of the insert is provided with a plug rod for inserting into the installation groove. The outer side of the plug rod is provided with a plurality of slides extending along the axial direction. One end of the slide is connected to the bottom of the plug rod, and each slide slides around the corresponding limiting block. One side of the slide is provided with a limiting groove that locks with the corresponding limiting block after rotation.

[0007] The fixed mold is also provided with an annular groove coaxially arranged with the mounting groove. A heat-conducting plate is provided at the bottom of the annular groove. An annular protrusion is provided at the bottom of the insert and inserted into the annular groove, and one end of the annular protrusion is in contact with the heat-conducting plate.

[0008] Furthermore, the top of the insert is provided with an upwardly protruding core portion.

[0009] Furthermore, the bottom of the mounting groove is provided with several annularly distributed air holes, which are connected to the bottom of the fixed mold.

[0010] Furthermore, the limiting block has a first arc surface at one end near the limiting groove, and the limiting groove has a second arc surface at the other end away from the slide rail. The first arc surface and the second arc surface have the same curvature and arc length.

[0011] Furthermore, one side of the heat-conducting sheet is provided with a plurality of positioning rods that are inserted into the bottom of the annular groove and fixed therein, and the bottom of the annular groove is provided with a plurality of positioning slots that match the positioning rods.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The fixed mold core structure provided by this utility model forms a simple and effective installation and detachable structure by setting a limiting block on the inner wall of the mounting groove of the fixed mold and opening a slide and limiting groove on the outer side of the insert rod. This greatly simplifies the insert replacement process, eliminates the need for complex tools and operations, saves replacement time and labor costs, and improves production efficiency. The annular groove opened on the fixed mold, the annular protrusion at the bottom of the insert, and the heat-conducting plate set at the bottom of the annular groove together form an efficient heat conduction path. The heat generated by the insert can be transferred to the heat-conducting plate through the annular protrusion, and then quickly transferred to the fixed mold by the heat-conducting plate, thereby accelerating the heat dissipation speed, effectively reducing the temperature, and reducing mold damage and product quality problems caused by excessive temperature. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the bottom structure of the insert in an embodiment of this utility model;

[0016] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged schematic diagram of section A in the middle;

[0017] Figure 4 This is a schematic diagram of the connection structure between the mold and the heat-conducting sheet in an embodiment of this utility model;

[0018] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged schematic diagram of section B;

[0019] Figure 6 This is a schematic diagram of the mold and heat-conducting sheet structure in an embodiment of this utility model;

[0020] Numbering on the map:

[0021] 1-Fixed mold, 2-Insert, 3-Heat-conducting plate;

[0022] 101-Mounting groove, 102-Limiting block, 103-Annular groove, 104-Air hole, 105-First arc surface, 106-Positioning slot;

[0023] 201-Insertion rod, 202-Slide rail, 203-Limiting groove, 204-Annular protrusion, 205-Core part, 206-Second arc surface;

[0024] 301 - Positioning rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-5 As shown, this utility model provides a fixed mold core structure, which mainly consists of a fixed mold 1 and an insert 2. The insert 2 is detachably installed in the middle of the fixed mold 1. Through ingenious structural design, the insert 2 can be conveniently replaced and efficiently heat-conducted.

[0027] The fixed mold 1, as the main part of the structure, has an internal mounting groove 101 for installing the insert 2. The inner wall of the mounting groove 101 is circumferentially provided with several limiting blocks 102 extending along the axial direction. These limiting blocks 102 play a crucial positioning role during the installation of the insert 2. Simultaneously, the fixed mold 1 also has an annular groove 103 coaxially arranged with the mounting groove 101. A heat-conducting plate 3 is located at the bottom of the annular groove 103. One side of the heat-conducting plate 3 has several positioning rods 301 circumferentially arranged to be inserted and fixed into the bottom of the annular groove 103. Correspondingly, several positioning slots 106 matching the positioning rods 301 are provided at corresponding positions at the bottom of the annular groove 103. During actual installation of the heat-conducting plate 3, the positioning rods 301 are aligned with the positioning slots 106 and inserted, thus achieving stable installation of the heat-conducting plate 3 within the annular groove 103 and ensuring reliable heat conduction.

[0028] In addition, the bottom of the mounting groove 101 is provided with several annularly distributed air holes 104. The air holes 104 are connected to the bottom of the fixed mold 1. During the operation of the mold, these air holes 104 can effectively discharge the air in the mounting groove 101. When installing the insert 2, the internal pressure can be reduced to facilitate assembly. In addition, it can also avoid the installation accuracy of the insert 2 and the forming effect of the mold due to residual air, and effectively remove impurities remaining in the mounting groove 101.

[0029] Insert 2 is a replaceable and important component in the fixed core structure. The bottom of insert 2 has a rod 201 for insertion into the mounting slot 101. Several slides 202 extending along the axial direction are formed on the outer side of the rod 201. One end of each slide 202 communicates with the bottom of the rod 201, and each slide 202 slides around the corresponding limiting block 102. When installing insert 2, the rod 201 is aligned with the mounting slot 101 and inserted, allowing the slides 202 to slide down along the limiting blocks 102 until the rod 201 is fully inserted into the mounting slot 101. At this point, rotating insert 2 causes the limiting groove 203 on one side of the slide 202 to rotate and lock with the corresponding limiting block 102.

[0030] It is worth noting that the end of the limiting block 102 near the limiting groove 203 is provided with a first arc surface 105, and the end of the limiting groove 203 away from the slide 202 is provided with a second arc surface 206, and the first arc surface 105 and the second arc surface 206 have the same curvature and arc length. This design makes it easy for the limiting block 102 to rotate towards the limiting groove 203 during the rotation and locking process of the insert 2 without any jamming. Moreover, the first arc surface 105 and the second arc surface 206 can fit tightly together, ensuring the stability of the connection between the insert 2 and the fixed mold 1 and preventing the insert 2 from loosening during mold operation.

[0031] Meanwhile, the bottom of the insert 2 is provided with an annular protrusion 204 that fits into the annular groove 103, and one end of the annular protrusion 204 contacts the heat-conducting plate 3. When the insert 2 is installed in place, the annular protrusion 204 and the heat-conducting plate 3 are in close contact, thereby enabling the heat of the insert 2 to be quickly and effectively transferred to one end of the fixed mold 1 through the heat-conducting plate 3, improving the heat dissipation efficiency of the mold, ensuring the normal operating temperature of the mold, and helping to improve the molding quality and service life of the mold. In addition, the top of the insert 2 is provided with an upwardly protruding core part 205. The core part 205 is used to form the specific shape of the product during the mold forming process and is a key part for realizing product molding.

[0032] In practical use, when insert 2 becomes worn or damaged and needs to be replaced, simply rotate insert 2 in the reverse direction to separate the limiting groove 203 from the limiting block 102, and then pull insert 2 upwards along the limiting block 102 to complete the removal of the old insert 2. Next, install the new insert 2 according to the above installation steps to quickly complete the replacement of insert 2. The operation is simple and convenient, greatly improving the mold maintenance efficiency and reducing maintenance costs.

[0033] In summary, the fixed mold core structure provided by this technical solution, by setting a limiting block 102 on the inner wall of the mounting groove 101 of the fixed mold 1, and opening a slide 202 and a limiting groove 203 on the outer side of the insert rod 201 of the insert 2, forms a simple and effective installation and detachable structure, which greatly simplifies the replacement process of the insert 2, eliminates the need for complex tools and operations, saves replacement time and labor costs, and improves production efficiency. The annular groove 103 opened on the fixed mold 1, the annular protrusion 204 at the bottom of the insert 2, and the heat-conducting plate 3 set at the bottom of the annular groove 103 together form an efficient heat conduction path. The heat generated by the insert 2 can be transferred to the heat-conducting plate 3 through the annular protrusion 204, and then quickly transferred to the fixed mold 1 by the heat-conducting plate 3, thereby accelerating the heat dissipation speed, effectively reducing the temperature, and reducing mold damage and product quality problems caused by excessive temperature.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fixed mold core structure, comprising a fixed mold and an insert, wherein the insert is detachably installed in the middle of the fixed mold, characterized in that: The fixed mold has an installation groove for installing inserts. The inner wall of the installation groove is provided with several limiting blocks extending along the axial direction. The bottom of the insert is provided with a plug rod for inserting into the installation groove. Several slides extending along the axial direction are provided on the outer side of the plug rod. One end of the slide is connected to the bottom of the plug rod, and each slide slides on the outside of the corresponding limiting block. One side of the slide is provided with a limiting groove that locks with the corresponding limiting block after rotation. The fixed mold is also provided with an annular groove coaxially arranged with the mounting groove. A heat-conducting plate is provided at the bottom of the annular groove. An annular protrusion is provided at the bottom of the insert and inserted into the annular groove, and one end of the annular protrusion is in contact with the heat-conducting plate.

2. The fixed-core structure according to claim 1, characterized in that: The insert has an upwardly protruding core at its top.

3. The fixed-core structure according to claim 1, characterized in that: The bottom of the mounting groove is provided with several annularly distributed air holes, which are connected to the bottom of the fixed mold.

4. The fixed-core structure according to claim 1, characterized in that: The limiting block has a first arc surface at one end near the limiting groove, and the limiting groove has a second arc surface at one end away from the slide. The first arc surface and the second arc surface have the same curvature and arc length.

5. A fixed-core structure according to any one of claims 1-4, characterized in that: The heat-conducting sheet has several positioning rods circumferentially arranged on one side, which are inserted into the bottom of the annular groove and fixed therein. The bottom of the annular groove has several positioning slots that match the positioning rods.

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