Hardware insert in-mold injection molding fixing structure
By innovating the design of the in-mold injection fixing structure for hardware inserts, and using movable inserts and floating sliders to support the hardware inserts, the problem of exposed holes was solved, thereby improving the pass rate of insulation and resistance performance tests and reducing processing costs.
Patent Information
- Application Number
- CN202520458796.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Traditional in-mold injection molding fixing structures for hardware inserts result in exposed hardware inserts at the product's holes, failing to meet performance testing requirements such as insulation and resistance.
The system adopts an in-mold injection fixing structure for metal inserts, including a lower mold core and horizontal and vertical fixing structures for the metal inserts. The metal inserts are supported by movable pins and floating sliders, ensuring that the metal inserts are positioned and suspended in the mold, avoiding the exposure of holes, and meeting the requirements of insulation and resistance testing.
This improved the pass rate of insulation and resistance performance tests for products, reduced product scrap rate, simplified processing technology, and lowered costs.
Smart Images

Figure CN223812263U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a mould especially relates to a hardware embedded part in-mould injection fixing structure. BACKGROUND
[0002] Mould, industrial production is used to injection moulding, blow moulding, extrusion, die casting or forging pressure forming, smelting, stamping etc.
[0003] At present, in the traditional scheme, for the hardware embedded part in-mould injection fixing structure, design fixed type inlay needle support hardware embedded part, product will produce hole position and expose hardware embedded part, for the product with insulation and resistance etc. SUMMARY
[0004] The utility model provides a product will not produce hole position and will not expose hardware embedded part, can satisfy product insulation and resistance etc.
[0005] The above technical problem of the utility model is solved through the following technical scheme: a hardware embedded part in-mould injection fixing structure, including lower mould core, being equipped with hardware embedded part installation cavity on the lower mould core, being equipped with hardware embedded part horizontal direction fixing structure on the both sides of lower mould core, being equipped with hardware embedded part vertical direction fixing structure below lower mould core, the hardware embedded part horizontal direction fixing structure includes first slider seat and second slider seat on the both sides of lower mould core, being equipped with elastic hardware embedded part width direction fixing structure on one slider seat, the hardware embedded part vertical direction fixing structure includes inlay needle below lower mould core, and the inlay needle is fixed in inlay needle seat, and inlay needle seat is driven up and down movement by inlay needle lifting structure.
[0006] The length direction of hardware embedded part is fixed through hardware embedded part horizontal direction fixing structure and width direction, and then the bottom of hardware embedded part is supported through lifting inlay needle.
[0007] As preferred, the width direction fixing structure of the hardware insert comprises a second slider insert installed on the second slider base, two opposite arranged elastic blocks are installed on two sides of the second slider insert, a spring is arranged between the two elastic blocks, and a hardware insert clamping gap is left between the two elastic blocks. The end of the hardware insert is put into the clamping gap, the two elastic blocks are pulled inward by the spring, and thus one end of the hardware insert is fixed.
[0008] As preferred, a guide column is arranged between the two elastic blocks, a through hole is arranged on the elastic block, and two ends of the guide column are located in the through hole of the elastic block. The elastic block moves in the width direction of the hardware insert by the guide column, and thus the width direction locking of the hardware insert is realized.
[0009] As preferred, the first slider base is installed with a first slider insert, and two ends of the hardware insert in the length direction are respectively abutted on the first slider insert and the second slider insert. One end of the hardware insert is abutted on the first slider insert, the first slider insert serves as a positioning end, and then the other end of the hardware insert is abutted on the second slider insert, and the second slider insert can slide according to the length of the hardware insert to meet the length requirement of the hardware insert.
[0010] As preferred, the insert pin lifting structure comprises two guide blocks fixed on the lower die plate, a lifting channel is formed between the two guide blocks, an inclined surface lifting block is arranged in the lifting channel, an insert pin base is installed above the inclined surface lifting block, an inclined surface sliding block base is matched with the inclined surface of the inclined surface lifting block, and a driving member is connected with the inclined surface sliding block base.
[0011] As preferred, the driving member is a driving oil cylinder, and the driving oil cylinder is connected with the inclined surface sliding block base through a connecting rod.
[0012] As preferred, a through hole of the insert pin is arranged at the bottom of the hardware insert mounting cavity of the lower die core, a gap is arranged between the bottom of the hardware insert and the bottom of the hardware insert mounting cavity, and the movement of the insert pin is not less than the length of the gap. After the insert pin completes the support of the hardware insert, the insert pin is retracted into the lower die core, and the effect of mold closing and injection molding is ensured.
[0013] Therefore, the hardware insert in-mold injection fixing structure has the following advantages: the movable insert pin structure and the floating slider structure are used to support the hardware insert, the product requirements are improved to meet the current rapid development, the manufacturing process is simple, the machining precision is not high, the operability is high, and the product scrap rate is reduced in the production process. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a perspective view of the mold opening of the hardware insert in-mold injection fixing structure.
[0015] Figure 2 It isFigure 1 A 3D view showing the removal of the lower mold core and base.
[0016] Figure 3 yes Figure 2 A 3D view from another direction.
[0017] Figure 4 yes Figure 3 A magnified view of point A.
[0018] Figure 5 This is a three-dimensional view of the second slider insert.
[0019] Figure 6 This is a three-dimensional diagram of the lower mold core. Detailed Implementation
[0020] The technical solution of the utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0021] Example:
[0022] like Figure 1 As shown, an in-mold injection molding fixing structure for a hardware insert includes a lower mold core 1. A rectangular hardware insert mounting cavity 23 is formed within the lower mold core 1, and a rectangular hardware insert 2 is installed within the cavity. A pin through-hole 24 is formed at the bottom of the hardware insert mounting cavity 23. Slider mounting grooves 22 are provided on both sides of the hardware insert mounting cavity 23 (e.g., ...). Figure 6 (As shown). A first slider seat 7 and a second slider seat 4 are respectively installed in the two slider mounting cavities 23. A first slider pressure strip 25 is installed on both sides of the first slider seat 7, and a second slider pressure strip 3 is installed on both sides of the second slider seat 4. The first slider pressure strip 25 and the second slider pressure strip 3 are fixed on the lower template (not shown).
[0023] like Figure 2 and 3 As shown in Figure 4, a first slider insert 6 is fixed on the first slider seat 7, and a second slider insert 5 is on the second slider seat 4. Two opposing spring blocks 17 are mounted on the outer side of the second slider insert 5, with a spring 19 between the two spring blocks 17. A clamping gap for a hardware insert is left between the two spring blocks 17. The end of the hardware insert 2 is inserted into the clamping gap and then clamped by the spring 19. A guide post 18 is provided between the two spring blocks 17, with a through hole 26 on the spring block. A guide post through hole 20 is provided on the second slider insert. The guide post 18 is located within the guide post through hole 20 of the second slider insert, with both ends of the guide post 18 located within the through hole 26 of the spring block. The spring block 17 is guided by the guide post 18. A spring groove 21 is also provided on each side of the second slider insert 5 to easily accommodate the spring 19 (e.g., ...). Figure 5The length direction of the hardware insert 2 is fixed by the first slider insert 6 and the second slider insert 5, and the width direction of the hardware insert 2 is clamped and fixed by the two elastic blocks 17.
[0024] A vertical direction fixing structure is arranged at the bottom of the hardware insert 2. The vertical direction fixing structure comprises an insert pin 8, one end of which is fixed in an insert pin seat 10, and the other end of which passes through an insert pin through hole in the bottom of the lower mold core and can be in contact with the hardware insert 2. The insert pin seat 10 is fixed on a bevel lifting block 11, one end of which is a bevel, and the other end is a flat surface, and the flat surface end is fixed with the insert pin seat 10. Two guide blocks 9 are arranged on both sides of the bevel lifting block 11, and a lifting channel is formed between the two guide blocks 9, and the bevel lifting block 11 is located in the lifting channel and moves up and down along the lifting channel. The guide blocks 9 are fixed on the lower mold plate. The bevel end of the bevel lifting block 11 cooperates with a bevel slider seat 12, and the bevel slider seat 12 is pushed by a connecting rod 15 driven by a driving oil cylinder 16, so as to drive the bevel lifting block 11 to move up and down. The bevel slider seat 12 is provided with bevel slider pressing strips 13 on both sides, and wear-resistant blocks 14 are arranged above the bevel slider pressing strips 13, and the bevel slider pressing strips 13 and the wear-resistant blocks 14 are fixed on the lower mold plate.
[0025] In use, the mold opening state is as follows:
[0026] The hardware insert is placed into the lower mold core by artificial, the driving oil cylinder is started, the driving oil cylinder drives the bevel slider seat to move, thereby driving the bevel lifting block to move, the insert pin seat moves accordingly, the hardware insert bottom surface is supported by the insert pin, the second slider seat is driven by artificial to drive the second slider insert, the second slider insert drives the two elastic blocks into the slider mounting groove of the lower mold core, and the first slider seat is driven to drive the first slider insert into the slider mounting groove of the lower mold core, the length direction of the hardware insert is fixed by the first slider insert and the second slider insert, and the width direction of the hardware insert is fixed by the two elastic blocks, and the height direction of the hardware insert is fixed by the insert pin, so as to perform mold closing injection molding.
[0027] The mold closing state is as follows:
[0028] The mold is closed, the two elastic blocks clamp the hardware insert along the guide column through the spring, and the hardware insert is fixed on both sides in the width direction. The driving oil cylinder pulls the bevel slider seat to slide along the bevel slider pressing strip and the wear-resistant block, the bevel lifting block moves vertically downward through the bevel slider seat, the insert pin moves vertically downward together with the insert pin seat, the insert pin is separated from the hardware insert and is flush with the glue surface of the lower mold core, the hardware insert is completely fixed in the lower mold core, the mold is closed for injection molding. The product is taken out by opening the mold, and the cycle is repeated.
[0029] The specific embodiments described herein are merely illustrative of the principles of the application. Numerous modifications and adaptations will be apparent to those skilled in the art without departing from the spirit or scope of the application.
Claims
1. A hardware insert in-mold injection molding fixing structure, comprising a lower mold core, wherein a hardware insert mounting cavity is provided on the lower mold core, characterized in that: The lower mold core has horizontal fixing structures for hardware inserts on both sides and vertical fixing structures for hardware inserts below the lower mold core. The horizontal fixing structures for hardware inserts include a first slider seat and a second slider seat located on both sides of the lower mold core. One of the slider seats has a flexible hardware insert width fixing structure. The vertical fixing structure for hardware inserts includes a pin located below the lower mold core. The pin is fixed in a pin seat, and the pin seat is driven up and down by a pin lifting structure.
2. The in-mold injection molding fixing structure for hardware inserts according to claim 1, characterized in that: The aforementioned hardware insert width direction fixing structure includes a second slider insert installed on a second slider seat. Two opposing spring blocks are installed on both sides of the second slider insert, a spring is provided between the two spring blocks, and a hardware insert clamping gap is left between the two spring blocks.
3. The in-mold injection molding fixing structure for hardware inserts according to claim 2, characterized in that: A guide post is provided between the two spring blocks, and a through hole is provided on the spring block. The two ends of the guide post are located inside the through hole of the spring block.
4. The in-mold injection molding fixing structure for hardware inserts according to claim 1, 2, or 3, characterized in that: The first slider seat is equipped with a first slider insert, and the two ends of the hardware insert in the length direction respectively abut against the first slider insert and the second slider insert.
5. A hardware insert in-mold injection molding fixing structure according to claim 1, 2, or 3, characterized in that: The pin-setting lifting structure includes two guide blocks fixed on the lower template, forming a lifting channel between the two guide blocks. An inclined lifting block is provided in the lifting channel, and a pin-setting seat is installed above the inclined lifting block. An inclined slider seat is fitted to the inclined surface of the inclined lifting block, and a driving component is connected to the inclined slider seat.
6. The in-mold injection molding fixing structure for a hardware insert according to claim 5, characterized in that: The driving component is a hydraulic cylinder, which is connected to an inclined slider seat via a connecting rod.
7. A hardware insert in-mold injection molding fixing structure according to claim 1, 2, or 3, characterized in that: The bottom of the hardware insert mounting cavity of the lower mold core is provided with a pin through hole, and there is a gap between the bottom of the hardware insert and the bottom of the hardware insert mounting cavity. The movement of the pin forms a gap length not less than the gap length.