Combined mold convenient to replace

Abstract

The utility model discloses a combined die convenient to replace, which belongs to the technical field of dies and comprises an upper die plate, a replaceable die core, a lower die table and a split lower die structure. A base plate is arranged on the lower side of the upper die plate, and a connecting structure is installed on the base plate and connected with the upper die plate. Guide rods are fixedly mounted on the lower side of the base plate in a rectangular array; the guide rod is in limited sliding connection with the lower die table; a replaceable mold core is mounted between the upper mold plate and the base plate; the bottom of the replaceable mold core penetrates through the base plate; a split type lower die structure is mounted on the lower die table; the split type lower die structure comprises a lower die, a limiting assembly and a driving assembly, the lower die is installed in a lower die table, and the limiting assembly used for limiting the lower die is installed on the lower die table; a driving assembly used for driving the lower die is installed on the lower die table. According to the mode, the replaceable mold core penetrating through the base plate, the base plate and the lower mold form a mold cavity for forming a formed part; and through cooperation of the upper mold plate and the base plate, replacement of the replaceable mold core is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a modular mold that is easy to replace. Background Technology

[0002] Injection molding typically involves closing two parts of a mold to create a cavity for filling with molten plastic. After the molten plastic is injected, it is allowed to cool within the cavity before the mold is opened to eject the cooled plastic part. Injection molding is a simple process with high production efficiency and can mold complex shapes, making it widely used in production.

[0003] For example, Chinese patent CN221641625U discloses an injection mold in which an upper mold and a lower mold form an injection cavity. Molded plastic is injected into the injection cavity and cooled to form a mold. Then the upper mold and the lower mold are separated, and the molded plastic is demolded with the help of an ejector component and an elastic striking component.

[0004] However, in actual production, some plastic parts only differ in the shape of the central mold core. Replacing the entire mold would be costly. Furthermore, it is difficult to quickly replace the mold with different molds to form the parts with different central shapes.

[0005] Based on this, the present invention designs a modular mold that is easy to replace in order to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a modular mold that is easy to replace.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A modular mold that is easy to replace includes an upper template, a replaceable mold core, a lower mold platform, and a split lower mold structure;

[0009] A pad is provided on the lower side of the upper template, and a connecting structure is installed on the pad, which is connected to the upper template; guide rods are fixedly installed in a rectangular array on the lower side of the pad; the guide rods are slidably connected to the lower mold table; a replaceable mold core is installed between the upper template and the pad; the bottom of the replaceable mold core passes through the pad; a split lower mold structure is installed on the lower mold table;

[0010] The split-type lower mold structure includes a lower mold, a limiting component, and a driving component. The lower mold is installed inside the lower mold platform, and a limiting component for limiting the lower mold is installed on the lower mold platform; a driving component for driving the lower mold is installed on the lower mold platform.

[0011] Furthermore, the replaceable mold core includes a replacement plate, an insert plate, and a mold core. An insert plate is fixedly installed on the lower side of the replacement plate, and a mold core for forming the center groove is fixedly installed on the lower side of the insert plate. An installation groove is provided on the upper side of the pad plate, and the installation groove is engaged with the replacement plate.

[0012] Furthermore, a slot is provided in the middle of the mounting groove; the slot is inserted into the insert plate.

[0013] Furthermore, the lower mold includes movable templates and protrusions. There are two movable templates, and the inner sides of the two movable templates are provided with conforming grooves for forming the molded parts. A protrusion for forming waist grooves is provided in the middle of the conforming grooves.

[0014] Furthermore, the limiting component includes a slider, and a moving groove for accommodating the moving template is provided on the lower mold plate; sliders are symmetrically fixedly installed on both sides of the moving groove, and sliding grooves are symmetrically provided on the side of the moving template, with the sliding grooves and sliders being slidably connected for limiting; limiting grooves are symmetrically provided on the moving template.

[0015] Furthermore, the limiting component also includes positioning blocks, with positioning blocks symmetrically fixedly installed on the bottom of the pad; the positioning blocks slide against the outer side of the movable template.

[0016] Furthermore, the driving assembly includes driving cylinders, which are symmetrically and fixedly mounted on the lower mold plate, and the output end of the driving cylinders is fixedly connected to the outer side of the moving template.

[0017] Furthermore, the drive assembly also includes a central limiting block, which is fixedly installed in the middle of the moving groove and engages with the limiting groove.

[0018] Compared with the prior art, the advantages of this utility model are as follows: The replaceable mold core is placed between the upper template and the pad, with the bottom of the replaceable mold core passing through the pad. During use, the drive assembly drives the lower mold to close under the limiting action of the limiting assembly, and then the upper template and the pad drive the replaceable mold core to fit against the guide rod under the limiting action of the guide rod. This forms a cavity for molding the part between the replaceable mold core passing through the pad, the pad, and the lower mold. Molded plastic is injected into the cavity, and after cooling and molding, the upper template and the pad drive the replaceable mold core to move vertically upwards, causing the replaceable mold core to detach from the center groove on the molded part. Then, the drive assembly drives the lower mold to open under the limiting action of the limiting assembly, ensuring both the molding of the groove and smooth demolding after molding. When producing molded parts with different center groove shapes, the upper template and the pad can be pulled apart, and then the replaceable mold core can be removed and replaced. The cooperation between the upper template and the pad facilitates the replacement of the replaceable mold core. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This utility model provides a three-dimensional modular mold that is easy to replace. Figure 1 ;

[0021] Figure 2 This is a front view of a modular mold that is easy to replace according to the present invention;

[0022] Figure 3 This utility model provides a three-dimensional modular mold that is easy to replace. Figure 2 ;

[0023] Figure 4 This utility model provides a three-dimensional modular mold that is easy to replace. Figure 3 ;

[0024] Figure 5 This is a schematic diagram of the molded part structure;

[0025] Figure 6 This is a schematic diagram of the replacement board and its connection structure;

[0026] Figure 7 This is a schematic diagram of the movable template and its connection structure.

[0027] The labels in the diagram represent:

[0028] 1. Upper mold plate; 11. Backing plate; 12. Connecting structure; 121. Limiting rod; 122. Limiting block; 13. Sprue hole; 14. Guide rod; 2. Replaceable mold core; 21. Replacement plate; 22. Insert plate; 23. Mold core; 24. Mounting groove; 25. Slot; 3. Lower mold platform; 4. Split lower mold structure; 41. Lower mold; 411. Moving mold plate; 412. Conforming groove; 413. Protrusion; 42. Limiting component; 421. Positioning block; 422. Slider; 423. Slide groove; 424. Limiting groove; 425. Moving groove; 43. Drive component; 431. Drive cylinder; 432. Center limiting block; 5. Molded part; 51. Center groove; 52. Waist groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-3 A modular mold that is easy to replace includes an upper template 1, a replaceable mold core 2, a lower mold platform 3, and a split lower mold structure 4;

[0032] A pad 11 is provided on the lower side of the upper template 1, and a connecting structure 12 is installed on the pad 11. The connecting structure 12 is connected to the upper template 1. Guide rods 14 are fixedly installed in a rectangular array on the lower side of the pad 11. The guide rods 14 are slidably connected to the lower mold table 3. A replaceable mold core 2 is installed between the upper template 1 and the pad 11. The bottom of the replaceable mold core 2 passes through the pad 11. A split lower mold structure 4 is installed on the lower mold table 3.

[0033] like Figure 2 and Figure 3 As shown, the split lower mold structure 4 includes a lower mold 41, a limiting component 42, and a driving component 43. The lower mold 41 is installed in the lower mold platform 3, and the lower mold platform 3 is equipped with a limiting component 42 for limiting the lower mold 41; the lower mold platform 3 is equipped with a driving component 43 for driving the lower mold 41.

[0034] In this embodiment, when the easily replaceable modular mold is working normally, the replaceable mold core 2 is placed between the upper template 1 and the pad 11, so that the bottom of the replaceable mold core 2 passes through the pad 11; during use, the drive assembly 43 drives the lower mold 41 to close under the limiting action of the limiting assembly 42, and then the upper template 1 and the pad 11 drive the replaceable mold core 2 to fit against the lower mold table 3 under the limiting action of the guide rod 14; so that the replaceable mold core 2 passing through the pad 11, the pad 11, and the lower mold 41 form a cavity for forming the molded part 5; liquid plastic is injected into the cavity, and then... After cooling and molding, the upper template 1 and the pad 11 drive the replaceable mold core 2 to move vertically upward, causing the replaceable mold core 2 to detach from the center groove 51 on the molded part 5. Then, the drive assembly 43 drives the lower mold 41 to open under the limiting action of the limiting assembly 42, thus ensuring the molding of the waist groove 52 while ensuring smooth demolding after molding. When it is necessary to produce molded parts 5 with different center groove 51 shapes, the upper template 1 and the pad 11 can be pulled apart, and then the replaceable mold core 2 can be taken out and replaced. The cooperation between the upper template 1 and the pad 11 facilitates the replacement of the replaceable mold core 2.

[0035] Example 2: In some embodiments, as a preferred embodiment of the present invention, such as... Figure 2 and 3 As shown, the upper template 1 and the pad 11 are provided with inlet holes 13 to facilitate the flow of molten plastic;

[0036] The connecting structure 12 includes a limiting rod 121 and a limiting block 122. Multiple limiting rods 121 are symmetrically fixedly installed on the pad 11, and a limiting block 122 is fixedly installed on the upper side of the limiting rod 121. The limiting rod 121 is slidably connected to the upper template 1.

[0037] like Figure 3 and Figure 6 As shown, the replaceable mold core 2 includes a replacement plate 21, an insert plate 22, and a mold core 23. The insert plate 22 is fixedly installed on the lower side of the replacement plate 21, and the mold core 23 for forming the center groove 51 is fixedly installed on the lower side of the insert plate 22. The upper side of the pad plate 11 has an installation groove 24, which is engaged with the replacement plate 21. The middle of the installation groove 24 has a slot 25, which is inserted into the insert plate 22.

[0038] like Figures 2-4 and Figure 7 As shown, the lower mold 41 includes a movable template 411 and a protrusion 413. There are two movable templates 411. The inner sides of the two movable templates 411 are provided with conforming grooves 412 for forming the molded part 5. The middle part of the conforming grooves 412 is provided with a protrusion 413 for forming the waist groove 52.

[0039] The limiting component 42 includes a slider 422. The lower mold plate 3 has a moving groove 425 for accommodating the moving template 411. Slider 422s are symmetrically fixedly installed on both sides of the moving groove 425. The moving template 411 has symmetrically opened sliding grooves 423 on its side. The sliding grooves 423 are limited and slidably connected to the slider 422. Limiting grooves 424 are symmetrically opened on the moving template 411.

[0040] The limiting component 42 also includes a positioning block 421, and the positioning block 421 is symmetrically fixedly installed on the bottom of the pad 11; the positioning block 421 slides against the outer side of the movable template 411;

[0041] The driving assembly 43 includes a driving cylinder 431. The driving cylinders 431 are symmetrically fixedly installed on the lower mold table 3. The output end of the driving cylinder 431 is fixedly connected to the outer side of the moving template 411.

[0042] The drive assembly 43 also includes a central limiting block 432. The central limiting block 432 is fixedly installed in the middle of the moving groove 425, and the central limiting block 432 is engaged with the limiting groove 424.

[0043] In this embodiment, when the replaceable mold core 2, the lower mold platform 3, and the split lower mold structure 4 are working normally, the replacement plate 21 is placed into the mounting slot 24, and the insert plate 22 is inserted into the slot 25; at this time, the mold core 23 passes through the pad plate 11; the bottom surface of the insert plate 22 and the bottom surface of the pad plate 11 are on the same plane; the drive cylinder 431 drives the moving template 411 to move in the moving slot 425. The moving template 411 moves horizontally under the limiting action of the slider 422 and the slide groove 423 until the limiting groove 424 on the inner side of the moving template 411 contacts the central limiting block 432, thereby closing the moving template 411; the conformal grooves 412 on the inner side of the two moving templates 411 are aligned with the bottom surface of the pad plate 11. The bottom surface of the insert plate 22 forms the cavity for molding the part 5. The center groove 51 is formed by the mold core 23 at the bottom of the insert plate 22, and the waist groove 52 is formed by the protrusion 413 in the middle of the conformal groove 412. After the plastic liquid is injected and cooled, the upper template 1 drives the pad plate 11 to move vertically through the limiting rod 121 and the limiting block 122. This drives the insert plate 22 and the mold core 23 to move vertically through the replacement plate 21 and the mounting groove 24, so that the bottom surface of the pad plate 11 and the replacement mold core 2 and the mold core 23 are separated from the part 5. Then, the driving cylinder 431 drives the moving template 411 to move horizontally, so that the part 5 is separated from the moving template 411, the conformal groove 412 and the protrusion 413, and the demolding is completed.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A combined mold convenient to replace, comprising an upper mold plate (1), a replaceable mold core (2), a lower mold base (3) and a split lower mold structure (4), characterized in that: The lower side of the upper mold plate (1) is provided with a backing plate (11), the backing plate (11) is provided with a connecting structure (12), the connecting structure (12) is connected with the upper mold plate (1); The lower side of the backing plate (11) is fixedly installed with guide rods (14) in a rectangular array; The guide rods (14) are limitingly and slidably connected with the lower mold base (3); The replaceable mold core (2) is installed between the upper mold plate (1) and the backing plate (11); The bottom of the replaceable mold core (2) passes through the backing plate (11); The split lower mold structure (4) is installed on the lower mold base (3); The split lower mold structure (4) comprises a lower mold (41), a limiting assembly (42) and a driving assembly (43), the lower mold (41) is installed in the lower mold base (3), the lower mold base (3) is provided with the limiting assembly (42) for limiting the lower mold (41); The lower mold base (3) is provided with the driving assembly (43) for driving the lower mold (41).

2. The combination mold with easy replacement according to claim 1, wherein The replaceable mold core (2) comprises a replacement plate (21), an insertion plate (22) and a mold core (23), the lower side of the replacement plate (21) is fixedly installed with the insertion plate (22), the lower side of the insertion plate (22) is fixedly installed with the mold core (23) for forming a center groove (51); The upper side of the backing plate (11) is provided with an installation groove (24), the installation groove (24) is clamped with the replacement plate (21).

3. The combination mold with easy replacement according to claim 2, wherein The middle part of the installation groove (24) is provided with an insertion groove (25); The insertion groove (25) is inserted with the insertion plate (22).

4. The combination mold with easy replacement according to claim 1, wherein The lower mold (41) comprises a moving mold plate (411) and a protrusion (413), the moving mold plate (411) is provided with two, the inner side of the two moving mold plates (411) is provided with a conformal groove (412) for forming a part (5), and the middle part of the conformal groove (412) is provided with a protrusion (413) for forming a waist groove (52).

5. The combination mold with easy replacement according to claim 4, wherein The limiting assembly (42) comprises a sliding block (422), the lower mold base (3) is provided with a moving groove (425) for accommodating the moving mold plate (411); The moving groove (425) is fixedly installed with a sliding block (422) on both sides, the moving mold plate (411) is symmetrically provided with a sliding groove (423) on the side edge, and the sliding groove (423) is limitingly and slidably connected with the sliding block (422); The moving mold plate (411) is symmetrically provided with a limiting groove (424).

6. The combination mold facilitating replacement according to claim 5, wherein The limiting assembly (42) further comprises a positioning block (421), the bottom of the backing plate (11) is fixedly installed with the positioning block (421); The positioning block (421) is slidably attached to the outer side of the moving mold plate (411).

7. The combination mold facilitating replacement according to claim 6, wherein The driving assembly (43) comprises a driving air cylinder (431), the lower mold base (3) is fixedly installed with the driving air cylinder (431) symmetrically, and the output end of the driving air cylinder (431) is fixedly connected with the outer side of the moving mold plate (411).

8. The combination mold facilitating replacement according to claim 7, wherein The driving assembly (43) further comprises a center limiting block (432), the middle part of the moving groove (425) is fixedly installed with the center limiting block (432), and the center limiting block (432) is clamped with the limiting groove (424).

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