Secondary inner slide delay structure
Through the design of the secondary internal line position delay structure, the adhesion problem of deep bone position products during mold release is solved, and precise control and efficient core extraction are achieved to ensure the consistency of product integrity and accuracy.
Patent Information
- Application Number
- CN202421980729.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-15
AI Technical Summary
Existing molds are prone to sticking to the horizontal position when the deep bone position product is demolded, resulting in product deformation and uneven core extraction process, which affects product integrity and accuracy.
The secondary internal line position delay structure is adopted, and the delayed core extraction is achieved by setting up a second shovel machine, the first shovel machine, the wear-resistant plate, the oblique guide column and the row position internal ejection system, ensuring that the simple part is demolded first and the complex part is demolded later. The cooperation of the spring and the oblique guide column is used to achieve precise control and smooth core extraction.
Prevent product sticking and deforming, improve core extraction accuracy and efficiency, reduce errors, ensure consistency of each injection molding cycle, reduce component losses, and improve core extraction efficiency.
Smart Images
Figure CN223236827U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a secondary inner position delay structure. Background Art
[0002] Mold demoulding and core pulling is an important step in the plastic molding process. It uses external driving force to smoothly remove the molded product from the mold to maintain the integrity and precision of the product.
[0003] Existing molds on the market have several drawbacks when core pulling for deep-frame products. For example, during the mechanical core pulling process, the high friction between the product and the slide can easily cause the product to stick to the slide during demolding, resulting in surface damage. This is particularly true for deep-frame products, where adhesion to the slide can cause product deformation during demolding. Failure to fully consider the structural characteristics of deep-frame products during mold design can make it difficult to meet the demolding requirements of deep-frame products, which can easily lead to uneven force application and deformation during demolding. Utility Model Content
[0004] The purpose of the present invention is to provide a secondary inner slide delay structure to solve the problem in the above background technology that deep-frame products may adhere to the slide during demoulding, causing product deformation.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a secondary inner row delay structure, comprising a second shovel and a row, a second shovel is provided on the left side of the row, the top of the second shovel is fixedly connected to the first shovel, the right side of the second shovel is fixedly connected to the second wear-resistant plate, the right side of the first shovel is fixedly connected to the first wear-resistant plate, an inclined guide column is embedded above the row, an inner row ejection system is provided in the row, the inner row ejection system comprises an ejector base plate, the ejector base plate is fixed in the row, an ejector panel is fixedly connected to the right side of the ejector base plate, a delayed KO rod is movably assembled in the middle position of the ejector panel, a pressure block is fixedly connected to the right side of the ejector panel, a row insert is provided on the right side of the pressure block, a plurality of groups of ejectors are fixedly connected between the pressure block and the row insert, and a spring is provided around the ejector.
[0006] Preferably, the right side of the slide insert abuts against the product, a top block abuts against the bottom of the product, the bottom end of the top block is fixedly connected to a guide sleeve, and the bottom end of the guide sleeve is fixedly connected to a push rod.
[0007] Preferably, the oblique guide pillar is fixed to the mold base, and four groups of springs are provided, which are respectively assembled at the four corners of the ejector panel.
[0008] Preferably, the right side wall of the slide insert matches the product shape.
[0009] Preferably, the inclination of the adjacent surfaces of the first shovel and the second shovel on the carriage is consistent with the inclination of the first wear-resistant plate and the second wear-resistant plate, and the first wear-resistant plate and the second wear-resistant plate can move in line with the left side wall of the carriage.
[0010] Preferably, the lower halves of the first wear-resistant plate and the second wear-resistant plate are provided with straight sliding grooves for the left side of the delayed KO rod to abut and move.
[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the secondary inner position delay structure not only prevents the product from sticking to the position and deforming, but also realizes precise control through delayed action, reduces errors, improves precision, and realizes a smooth core pulling process without movement and dislocation. It can also be quickly reset after mold closing, ensuring the consistency of injection molding in each injection cycle, and also reduces component loss and improves core pulling efficiency.
[0012] (1) By setting up an inclined guide column, a slide, an ejector block, a guide sleeve, an ejector rod, a second shovel, a first shovel, a second wear-resistant plate, a first wear-resistant plate, an ejector base plate, an ejector panel, a delayed KO rod, a spring, an ejector, a slide insert, and a pressure block, when the mold is opened, the first shovel leaves the slide as the upper and lower mold bases open the mold synchronously, and the slide is separated from the product under the action of the inclined guide column. In this process, the delayed KO rod inside the slide presses against the straight slide groove of the first wear-resistant plate, keeping the ejection system in the slide from sliding and pressing the product. This is the first stroke. When the slide is opened, the delayed KO rod inside the slide presses against the straight slide groove of the first wear-resistant plate, keeping the ejection system in the slide from sliding and pressing the product. After the ejection system slides along the set track to the second stroke under the action of the spring, the ejector pin is separated from the product. At this time, the first and second strokes are completed. The slider, under the action of the inclined guide column, drives the inner ejection system to continue to run to the third stroke, which is the end of the entire core pulling stroke. The core pulling is delayed by the secondary inner slider to ensure that the simple parts are demoulded first, and then the complex parts are demoulded step by step. The periodic fully automatic control system prevents the product from sticking to the slider and deforming. The delayed action achieves precise control, reduces errors, and improves accuracy.
[0013] (2) By providing a first wear-resistant plate, a second wear-resistant plate, and a delayed KO rod, the lower halves of the first wear-resistant plate and the second wear-resistant plate are provided with a straight slide groove for the left side of the delayed KO rod to abut and move. When the stroke is in progress, the movement of the delayed KO rod always abuts against the straight slide groove, so that the core pulling process is carried out smoothly without movement dislocation. It can also be quickly reset after the mold is closed, ensuring the consistency of injection molding in each injection cycle;
[0014] (3) By setting up a slide and a separate core pulling design, when each component cooperates with the core pulling, it moves through the shape coordination, and there is no need for a driving part to drive the core pulling separately inside the slide, thereby effectively reducing the energy consumption required for core pulling, reducing the loss of parts, and having high maintenance performance and higher core pulling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view structural diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the ejection system in the slide of the utility model;
[0017] Figure 3 It is a side view schematic diagram of the second shovel and the first shovel of the present invention;
[0018] Figure 4 It is a side structural schematic diagram of the present utility model.
[0019] In the figure: 1. inclined guide column; 2. slide; 3. ejector block; 4. guide sleeve; 5. ejector rod; 6. second shovel; 7. first shovel; 8. second wear-resistant plate; 9. first wear-resistant plate; 10. ejector base plate; 11. ejector panel; 12. delayed KO rod; 13. spring; 14. ejector; 15. slide insert; 16. pressure block. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] Example 1: Please refer to Figure 1-4 , a secondary inner row delay structure includes a second shovel 6 and a row 2, a second shovel 6 is provided on the left side of the row 2, the top of the second shovel 6 is fixedly connected to the first shovel 7, the right side of the second shovel 6 is fixedly connected to the second wear-resistant plate 8, and the right side of the first shovel 7 is fixedly connected to the first wear-resistant plate 9, an inclined guide column 1 is embedded above the row 2, and an inner row ejection system is provided in the row 2, and the inner row ejection system includes an ejector base plate 10. The ejector base plate 10 is fixed in the row 2, and the right side of the ejector base plate 10 is fixedly connected to the ejector panel 11. A delayed KO rod 12 is movably assembled in the middle position of the ejector panel 11, and a pressure block 16 is fixedly connected to the right side of the pressure block 16. A row insert 15 is provided on the right side of the pressure block 16. A plurality of groups of ejectors 14 are fixedly connected between the pressure block 16 and the row insert 15, and a spring 13 is provided around the ejector 14;
[0022] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, when the mold is opened, the first shovel 7 leaves the slide 2 as the upper and lower mold bases open synchronously, and the slide 2 is separated from the product under the action of the inclined guide column 1. During this process, the delayed KO rod 12 inside the slide 2 presses against the straight slide groove of the first wear-resistant plate 9, keeping the ejection system in the slide from sliding temporarily, that is, the ejector 14 presses against the product, which is the first stroke. When the ejection system in the slide slides along the set track to the second stroke under the action of the spring 13, the ejector 14 is separated from the product. At this time, the first and second strokes have been completed, and the slide 2 drives the ejection system in the slide to continue running to the third stroke under the action of the inclined guide column 1, which is the end of the entire core pulling stroke.
[0023] Example 2: The right side wall of the slide insert 15 matches the product shape. The inclination of the adjacent surfaces of the first shovel 7 and the second shovel 6 on the slide 2 is consistent with the inclination of the first wear-resistant plate 9 and the second wear-resistant plate 8. The first wear-resistant plate 9 and the second wear-resistant plate 8 can move in contact with the left side wall of the slide 2. The lower half of the first wear-resistant plate 9 and the second wear-resistant plate 8 is provided with a straight slide groove for the left side of the delayed KO rod 12 to abut and move.
[0024] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the lower half of the first wear-resistant plate 9 and the second wear-resistant plate 8 is provided with a straight slide groove for the left side of the delayed KO rod 12 to abut and move. When the stroke is in progress, the movement of the delayed KO rod 12 always abuts against the straight slide groove, so that the core pulling process proceeds smoothly.
[0025] Example 3: The inclined guide pin 1 is fixed to the mold base. Four groups of springs 13 are provided, which are respectively assembled at the four corners of the ejector panel 11. The right side of the slide insert 15 abuts against the product. The bottom of the product abuts against the ejector block 3. The bottom end of the ejector block 3 is fixedly connected to the guide sleeve 4. The bottom end of the guide sleeve 4 is fixedly connected to the ejector rod 5.
[0026] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, through the separate core pulling design, when each component cooperates with the core pulling, it moves through the shape coordination, and there is no need for a driving part to separately drive the core pulling inside the slide 2, thereby effectively reducing the energy consumption required for the core pulling.
[0027] Working principle: After the injection cycle is completed in the mold closing state, when the mold is opened, the first shovel 7 leaves the slide 2 as the upper and lower mold bases open the mold synchronously, and the slide 2 is separated from the product under the action of the inclined guide column 1. In this process, the delayed KO rod 12 inside the slide 2 presses against the straight slide groove of the first wear-resistant plate 9, keeping the ejection system in the slide from sliding, that is, the ejector 14 presses against the product, this is the first stroke. When the ejection system in the slide slides to the second stroke along the set track under the action of the spring 13, the ejector 14 is separated from the product. At this time, the first and second strokes have been completed, and the slide 2 drives the ejection system in the slide to continue running to the third stroke under the action of the inclined guide column 1, which is the end of the entire core pulling stroke.
[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A secondary inner row delay structure, comprising a second shovel (6) and a row (2), characterized in that: A second shovel (6) is provided on the left side of the row position (2), the top of the second shovel (6) is fixedly connected to the first shovel (7), the right side of the second shovel (6) is fixedly connected to the second wear-resistant plate (8), the right side of the first shovel (7) is fixedly connected to the first wear-resistant plate (9), an inclined guide column (1) is embedded above the row position (2), and an internal row position ejection system is provided in the row position (2), and the internal row position ejection system includes an ejector base plate (10) and the ejector base plate (10) is fixed to the row position. In position (2), the right side of the ejector base plate (10) is fixedly connected to an ejector panel (11), the middle position inside the ejector panel (11) is movably equipped with a delayed KO rod (12), the right side of the ejector panel (11) is fixedly connected to a pressure block (16), the right side of the pressure block (16) is provided with a slide insert (15), multiple groups of ejectors (14) are fixedly connected between the pressure block (16) and the slide insert (15), and springs (13) are provided around the ejector (14).
2. The quadratic inner row delay structure according to claim 1, wherein: The right side of the slide insert (15) abuts against the product, and a top block (3) abuts against the bottom of the product. The bottom end of the top block (3) is fixedly connected to a guide sleeve (4), and the bottom end of the guide sleeve (4) is fixedly connected to a top rod (5).
3. The quadratic inner row delay structure according to claim 1, wherein: The inclined guide column (1) is fixed to the mold base, and the spring (13) is provided in four groups, which are respectively assembled at the four corners of the ejector panel (11).
4. The quadratic inner row delay structure according to claim 1, wherein: The right side wall of the slide insert (15) matches the product shape.
5. The quadratic inner row delay structure according to claim 1, wherein: The inclination of the adjacent surfaces of the first shovel (7) and the second shovel (6) on the row (2) is consistent with the inclination of the first wear-resistant plate (9) and the second wear-resistant plate (8), and the first wear-resistant plate (9) and the second wear-resistant plate (8) can move in contact with the left side wall of the row (2).
6. The quadratic inner row delay structure according to claim 1, wherein: The lower halves of the first wear-resistant plate (9) and the second wear-resistant plate (8) are provided with straight sliding grooves for the left side of the delayed KO rod (12) to abut and move.