A diagonal top structure with guide rail driving commutation tripping
The guide rail driven reversing release inclined ejector structure solves the problem of bidirectional release of the buckle caused by the small space in the injection mold of automobile cab, and realizes stable ejection of the mold and high-quality molding of the product.
Patent Information
- Application Number
- CN202522454549.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-19
AI Technical Summary
Because of the numerous snap-fit ribs and small internal space for ejection from the mold, injection molded parts for automobile cabs are prone to mold deformation and product ejection marks. In particular, there is a risk of structural deformation and cracking when the snap-fit detaches in both directions.
The inclined ejector structure with guide rail drive for reversing and disengagement includes a large inclined ejector driving guide rail and a small inclined ejector for picking up the part. Through the cooperation of the large and small inclined ejectors, bidirectional disengagement of the product is achieved, avoiding the risk of deformation or cracking due to insufficient overall strength of the mold and ensuring the service life of the mold.
It simplifies the mold structure, stabilizes the product ejection process, reduces the risk of mold deformation and cracking, and improves the product appearance quality and injection molding production qualification rate.
Smart Images

Figure CN224928429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to an inclined top structure with guide rail drive reversing release. Background Technology
[0002] Injection molds are commonly used molds for molding plastic parts. They are tools that give plastic products a complete structure and precise dimensions. Through injection molds, a variety of plastic parts can be molded to meet people's various production and life needs. When an injection mold is working, it refers to injecting molten plastic into the mold cavity under high pressure from an injection molding machine. After cooling and solidification, the molded product is obtained.
[0003] The injection molded parts for automobile cabs have many ribs and clips, and the internal structure has a small demolding space, which makes it difficult to realize the mold structure. In particular, when the clips are disengaged in both directions, there is a risk of structural deformation and product top block marks.
[0004] Therefore, there is an urgent need for a sloping top structure with guide rail drive reversing trip. Utility Model Content
[0005] The purpose of this utility model is to provide a slanted ejector structure with guide rail drive reversing release. This structure is a forming mechanism developed based on the small mold space, which makes it impossible to realize a large space structure. It adopts an ejection structure with a large slanted ejector driving the guide rail and a small slanted ejector picking up the part. This not only simplifies the structure and solves the problem of bidirectional undercutting in the product buckle, but also avoids the risk of deformation or cracking due to insufficient overall strength of the mold caused by the structure, thus ensuring the service life of the mold.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A sloping top structure with guide rail drive reversing trip includes a large sloping top and a small sloping top; the large sloping top is connected to a top rod, and an insert for forming is connected to the large sloping top; the small sloping top includes a forming part and a sliding part, the sliding part of the small sloping top is slidably engaged with the large sloping top, and one end of the small sloping top is slidably engaged with a guide rail seat.
[0007] A further improvement of this utility model is that the push rod is inclined and the bottom end of the push rod is connected to the ejector plate.
[0008] A further improvement of this utility model is that a guide block is embedded on the large sloping top, a guide hole is provided on the insert, and the two ends of the sliding part are respectively slidably engaged with the guide block and the guide hole.
[0009] A further improvement of this utility model is that the top rod consists of two rods arranged side by side.
[0010] A further improvement of this utility model is that the small inclined top is tilted, and one end of the sliding part is provided with a slot; the guide rail seat is provided with a protrusion that matches the slot, and the slot engages with and slides against the protrusion.
[0011] A further improvement of this utility model is that the guide rail seat is connected to the rear template.
[0012] The beneficial effects of this utility model are: This utility model discloses a slanted ejector structure with guide rail drive reversing release. This structure is a forming mechanism developed based on the small mold space, which makes it impossible to realize a large space structure. It adopts an ejection structure with a large slanted ejector driving the guide rail and a small slanted ejector picking up the part. This not only simplifies the structure and solves the problem of bidirectional undercutting in the product buckle during demolding, but also avoids the risk of deformation or cracking due to insufficient overall strength of the mold caused by the structure, thus ensuring the service life of the mold.
[0013] The inclined ejector structure with guide rail drive and reversing release of this utility model has a relatively stable product ejection structure, a relatively small risk of ejector block imprint, and ensures the appearance quality of the product and the pass rate of injection molding production. Attached Figure Description
[0014] Figure 1 This is a structural diagram of the product.
[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 3 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 4 This is a cross-sectional view of the present invention in its working state.
[0018] Figure 5 This is a schematic diagram of the small sloping top structure of this utility model.
[0019] In the diagram: 1-large inclined ejector, 2-small inclined ejector, 201-forming part, 202-sliding part, 203-slot, 3-ejector rod, 4-insert, 5-guide rail seat, 501-protrusion, 6-ejector plate, 7-guide block, 8-product, 801-buckle. Detailed Implementation
[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0021] Example 1: As Figures 2-5 As shown, a sloping top structure with guide rail drive reversing trip includes a large sloping top 1 and a small sloping top 2; the large sloping top 1 is connected to the top rod 3, and an insert 4 for forming is connected to the large sloping top 1; the small sloping top 2 includes a forming part 201 and a sliding part 202, the sliding part 202 of the small sloping top 2 is slidably engaged with the large sloping top 1, and one end of the small sloping top 2 is slidably engaged with the guide rail seat 5.
[0022] The push rod 3 is inclined, and the bottom end of the push rod 3 is connected to the ejector plate 6.
[0023] A guide block 7 is embedded in the large sloping top 1, and a guide hole is provided on the insert 4. The two ends of the sliding part 202 are respectively slidably engaged with the guide block 7 and the guide hole.
[0024] The top rod 3 consists of two rods arranged side by side.
[0025] The small inclined top 2 is inclined, and one end of the sliding part 202 is provided with a slot 203; the guide rail seat 5 is provided with a protrusion 501 that is adapted to the slot 203, and the slot 203 engages and slides with the protrusion 501.
[0026] The guide rail seat 5 is connected to the rear template.
[0027] The specific working principle of this utility model is as follows: Figure 1 Product 8 is a sub-instrument panel body component, and its buckle 801 has two ejection directions, A and B.
[0028] During operation, the large inclined ejector 1 ejects and continues to retract, thereby demolding the product 8 in the A direction of the undercut. At this time, the snap-fit area 801 is undercut. When the large inclined ejector 1 ejects, the small inclined ejector 2 is driven by the guide rail seat 5 to retract synchronously, thereby demolding the product 8 in the B direction of the undercut, thus realizing the bidirectional demolding motion.
[0029] This structure is a molding mechanism developed for situations where mold space is limited and large-space structures cannot be implemented. It not only simplifies the structure and solves the demolding problem of the bidirectional undercut within the snap-fit 801 of product 8, avoiding the risk of deformation or cracking due to insufficient overall mold strength caused by the structure, thus ensuring mold lifespan, but also provides a relatively stable ejection structure for product 8, with a relatively low risk of ejector block marks, ensuring the appearance quality of product 8 and the pass rate of injection molding production.
[0030] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A sloping top structure with guide rail driven reversing trip, characterized in that: It includes a large inclined top (1) and a small inclined top (2); the large inclined top (1) is connected to the top rod (3), and the large inclined top (1) is connected to an insert (4) for forming; the small inclined top (2) includes a forming part (201) and a sliding part (202), the sliding part (202) of the small inclined top (2) is slidably fitted to the large inclined top (1), and one end of the small inclined top (2) is slidably fitted to the guide rail seat (5).
2. The inclined top structure with guide rail driven reversing trip as described in claim 1, characterized in that: The push rod (3) is inclined and the bottom end of the push rod (3) is connected to the ejector plate (6).
3. The inclined top structure with guide rail driven reversing trip as described in claim 1, characterized in that: The large sloping top (1) is fitted with a guide block (7), and the insert (4) is provided with a guide hole. The two ends of the sliding part (202) are respectively slidably fitted to the guide block (7) and the guide hole.
4. The inclined top structure with guide rail driven reversing trip as described in claim 1, characterized in that: The top rod (3) consists of two rods arranged side by side.
5. The inclined top structure with guide rail driven reversing trip as described in claim 1, characterized in that: The small inclined top (2) is inclined, and one end of the sliding part (202) is provided with a slot (203); the guide rail seat (5) is provided with a protrusion (501) that is adapted to the slot (203), and the slot (203) engages and slides with the protrusion (501).
6. A sloping top structure with guide rail driven reversing trip as described in claim 1 or 5, characterized in that: The guide rail seat (5) is connected to the rear template.
