Inner sliding block mold
By designing the inner slider mold, the sliding connection between the movable block and the guide block, combined with the movement of the elastic telescopic rod, the problem of the inverted structure being easily damaged during the mold release process of the injection mold is solved, which improves the product yield and extends the service life of the mold.
Patent Information
- Application Number
- CN202420935811.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In injection molds, the inverted structure is easily damaged during the demolding process, resulting in a decrease in product yield.
An inner slider mold is designed, including a moving template, a die core, a movable block, a guide block and an elastic telescopic rod. The drive block drives the elastic telescopic rod, causing the U-shaped rod to shrink, and the movable block is entered into the installation groove to avoid interference between the inverted structure and the die core.
When the product is demolded, the inverted structure moves from the outside of the movable block to avoid damage, improve the product yield, and reduce the impact on the mold through the elastic telescopic rod, extending the service life of the mold.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to an inner slide mold. Background Art
[0002] An injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.
[0003] There are many plastic products that have undercut structures when they are designed. If the product has an undercut structure, the mold will also have an undercut structure. This requires the corresponding parts to be withdrawn when the product is demoulded. Otherwise, the undercut structure is easily damaged during the demoulding process, reducing the product yield.
[0004] In order to solve the above problems, we have made improvements and proposed an inner slider mold. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] The utility model provides an inner slider mold, comprising a movable template, the top end of the movable template is fixedly connected with a mold core, the outer side of the mold core is provided with a first installation groove, and the first installation groove is U-shaped, movable blocks are arranged on the left and right sides of the first installation groove, the two movable blocks are symmetrically arranged, a molding groove is arranged in the middle of the movable block, a plurality of guide blocks are fixedly connected on the left and right sides of the inside of the first installation groove, and the guide blocks are slidably connected to the movable blocks, the middle part of the movable template is slidably connected with a driving block, and the top of the driving block is arranged inside the mold core, the left and right sides of the top end of the driving block are hinged with elastic telescopic rods, the top end of the elastic telescopic rod is hinged with a U-shaped rod, and the U-shaped rod is fixedly connected to the movable block.
[0007] As a preferred technical solution of the utility model, a second installation groove is provided at the top of the mold core, an insert block is slidably connected inside the second installation groove, and a connecting rod is fixedly connected between the insert block and the driving block.
[0008] As a preferred technical solution of the utility model, the top end of the movable block is fixedly connected with an extension block, and the extension block is slidably connected to the top of the first installation groove.
[0009] As a preferred technical solution of the utility model, slide grooves are provided on both left and right sides of the interior of the mold core, the interior of the slide groove is slidably connected to a limit rod, and the outer end of the limit rod is fixedly connected to the movable block.
[0010] As a preferred technical solution of the utility model, a gasket is sleeved on the outer side of the limit rod, and the gasket is arranged inside the sliding groove.
[0011] As a preferred technical solution of the utility model, a buffer sheet is fixedly connected to the interior of the second mounting groove, and the buffer sheet is sleeved on the outer side of the connecting rod.
[0012] The beneficial effects of the utility model are:
[0013] 1. In the utility model, the retreating driving block drives the elastic telescopic rod to move, thereby causing the U-shaped rod to shrink toward the inside of the mold core, so that the movable block is retracted into the inside of the first installation groove along the guide block, so that the molding groove and the undercut structure are separated. When the product is demoulded, the undercut structure moves from the outside of the movable block, and the mold core does not interfere with the undercut structure, thereby avoiding damage to the undercut structure and improving the yield of the product.
[0014] 2. The utility model drives the block to continue to move toward the inside of the mold core, and the elastic telescopic rod is shortened, so that the connecting rod pushes the plug block out of the second installation groove and is inserted between the two extension blocks until the plug block is flush with the extension block, thereby keeping the top of the mold core smooth, reducing subsequent processing of the product and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 It is a three-dimensional diagram of the utility model;
[0017] Figure 2 It is a cross-sectional view of the utility model;
[0018] Figure 3 The utility model Figure 2 Enlarged view of point A in the middle;
[0019] In the figure: 1, movable template; 2, mold core; 3, first mounting groove; 4, guide block; 5, movable block; 6, molding groove; 7, extension block; 8, second mounting groove; 9, plug block; 10, driving block; 11, U-shaped rod; 12, limit rod; 13, slide groove; 14, gasket; 15, buffer plate; 16, connecting rod; 17, elastic telescopic rod. DETAILED DESCRIPTION
[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0021] Example: Figure 1-3 As shown, an inner slider mold comprises a movable template 1, the top of the movable template 1 is fixedly connected with a mold core 2, a first mounting groove 3 is provided on the outer side of the mold core 2, and the first mounting groove 3 is U-shaped, movable blocks 5 are arranged on the left and right sides of the first mounting groove 3, the two movable blocks 5 are symmetrically arranged, a molding groove 6 is provided in the middle of the movable block 5, a plurality of guide blocks 4 are fixedly connected on the left and right sides of the inside of the first mounting groove 3, and the guide blocks 4 are slidably connected with the movable blocks 5, a driving block 10 is slidably connected with the middle of the movable template 1, and the top of the driving block 10 is arranged inside the mold core 2, the driving block 10 is fixedly connected with the output end of the hydraulic press, elastic telescopic rods 17 are hinged on the left and right sides of the top of the driving block 10, a U-shaped rod 11 is hinged on the top of the elastic telescopic rod 17, and the U-shaped rod 11 is fixedly connected with the movable block 5, a push rod is arranged inside the mold core 2 for material withdrawal, and the push rod is misaligned with the driving block 10;
[0022] After the product is formed on the outside of the mold core 2, the hydraulic press works to move the driving block 10, so that the driving block 10 retreats, and the retreating driving block 10 drives the elastic telescopic rod 17 to move, thereby causing the U-shaped rod 11 to shrink toward the inside of the mold core 2, so that the movable block 5 is retracted into the inside of the first mounting groove 3 along the guide block 4, so that the molding groove 6 is separated from the undercut structure. When the product is demolded, the undercut structure moves from the outside of the movable block 5, and the mold core 2 does not interfere with the undercut structure, thereby avoiding damage to the undercut structure, thereby improving the yield of the product. The elastic telescopic rod 17 itself can be retracted to reduce the impact on the U-shaped rod 11, and can extend the service life of the mold.
[0023] Specifically, Figure 2 and Figure 3 As shown, a second mounting groove 8 is provided at the top of the mold core 2, and an insert block 9 is slidably connected inside the second mounting groove 8. A connecting rod 16 is fixedly connected between the insert block 9 and the driving block 10, and an extension block 7 is fixedly connected to the top of the movable block 5, and the extension block 7 is slidably connected to the top of the first mounting groove 3. When the mold is closed, the outer end surface of the movable block 5 is flush with the outer surface of the mold core 2, and the extension block 7 follows and moves outward. At this time, a gap is left between the two extension blocks 7. At this time, the driving block 10 continues to move toward the inside of the mold core 2, and the elastic telescopic rod 17 is shortened, so that the connecting rod 16 pushes the insert block 9 out of the second mounting groove 8 and is inserted between the two extension blocks 7 until the insert block 9 is flush with the extension block 7, keeping the top of the mold core 2 smooth, reducing the subsequent processing of the product, and improving work efficiency.
[0024] Specifically, Figure 2 and Figure 3As shown, slide grooves 13 are provided on both sides of the inner part of the mold core 2, and the inner part of the slide groove 13 is slidably connected to the limit rod 12, and the outer end of the limit rod 12 is fixedly connected to the movable block 5. The limit rod 12 slides in the slide groove 13 in the mold core 2 to limit the movable block 5 and share the load of the U-shaped rod 11, thereby extending the service life of the mold.
[0025] Specifically, Figure 3 As shown, a gasket 14 is sleeved on the outer side of the limiting rod 12 , and the gasket 14 is arranged inside the slide groove 13 , and the gasket 14 protects the limiting rod 12 to prevent the limiting rod 12 from directly acting on the inside of the slide groove 13 , thereby protecting the limiting rod 12 .
[0026] Specifically, Figure 3 As shown, a buffer sheet 15 is fixedly connected to the inside of the second mounting groove 8, and the buffer sheet 15 is sleeved on the outside of the connecting rod 16. After the insert block 9 is received into the second mounting groove 8, the insert block 9 is prevented from colliding with the second mounting groove 8, thereby protecting the connecting rod 16 and the insert block 9.
[0027] Working principle: When the mold is closed, the outer end surface of the movable block 5 is flush with the outer surface of the mold core 2, and the extension block 7 moves outward accordingly. At this time, there is a gap between the two extension blocks 7. At this time, the driving block 10 continues to move into the mold core 2, and the elastic telescopic rod 17 is shortened, so that the connecting rod 16 pushes the plug block 9 out of the second installation groove 8 and inserts it between the two extension blocks 7 until the plug block 9 is flush with the extension block 7, keeping the top of the mold core 2 smooth;
[0028] After the product is formed on the outside of the mold core 2, the hydraulic press works to move the driving block 10, so that the driving block 10 retreats, and the retreating driving block 10 drives the elastic telescopic rod 17 to move, thereby causing the U-shaped rod 11 to shrink toward the inside of the mold core 2, so that the movable block 5 is retracted into the first mounting groove 3 along the guide block 4, so that the molding groove 6 is separated from the undercut structure. When the product is demolded, the undercut structure moves from the outside of the movable block 5, and the mold core 2 does not interfere with the undercut structure, thereby avoiding damage to the undercut structure and improving the yield of the product.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An inner slider mold, comprising a movable mold plate (1), characterized in that: The top of the movable template (1) is fixedly connected to a mold core (2), a first installation groove (3) is provided on the outer side of the mold core (2), and the first installation groove (3) is U-shaped, movable blocks (5) are provided on both sides of the first installation groove (3), and the two movable blocks (5) are symmetrically arranged, and a molding groove (6) is provided in the middle of the movable block (5), a plurality of guide blocks (4) are fixedly connected to both sides of the inside of the first installation groove (3), and the guide blocks (4) are slidably connected to the movable blocks (5), a driving block (10) is slidably connected to the middle of the movable template (1), and the top of the driving block (10) is arranged inside the mold core (2), and elastic telescopic rods (17) are hinged on both sides of the top of the driving block (10), and a U-shaped rod (11) is hinged on the top of the elastic telescopic rod (17), and the U-shaped rod (11) is fixedly connected to the movable block (5).
2. An inner slider mold according to claim 1, characterized in that: A second mounting groove (8) is provided at the top end of the mold core (2), an insert block (9) is slidably connected inside the second mounting groove (8), and a connecting rod (16) is fixedly connected between the insert block (9) and the driving block (10).
3. The inner slider mold according to claim 1, characterized in that: The top end of the movable block (5) is fixedly connected to an extension block (7), and the extension block (7) is slidably connected to the top of the first installation groove (3).
4. The inner slider mold according to claim 1, characterized in that: Slide grooves (13) are provided on both left and right sides of the interior of the mold core (2); the interior of the slide groove (13) is slidably connected to a limit rod (12), and the outer end of the limit rod (12) is fixedly connected to the movable block (5).
5. The inner slider mold according to claim 4, characterized in that: A gasket (14) is sleeved on the outer side of the limiting rod (12), and the gasket (14) is arranged inside the sliding groove (13).
6. The inner slider mold according to claim 2, characterized in that: A buffer sheet (15) is fixedly connected to the interior of the second mounting groove (8), and the buffer sheet (15) is sleeved on the outside of the connecting rod (16).