Angle-adjustable inclined ejection mechanism and demolding mold
By designing an adjustable angle ejection mechanism, the problem that fixed-angle angle ejectors cannot meet the demolding requirements of different products is solved. This enables precise angle adjustment of the angle ejectors, improves demolding efficiency and equipment stability, and reduces mold wear and product damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN EVA MOULD MFG CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-05-05
AI Technical Summary
In the existing technology, the fixed-angle angled ejector structure cannot meet the demolding requirements of products with different shapes and sizes, resulting in poor demolding effect or even damage to the product.
An angle-adjustable jacking mechanism was designed, which achieves precise angle adjustment of the jacking rod through a detachably connected fixed block, sliding block, jacking connecting seat, and angle adjustment assembly, including gears, racks, and unlocking rods.
It improves the flexibility and adaptability of the mold, reduces wear caused by inappropriate force and angle, ensures stable product demolding, and reduces the risk of product damage.
Smart Images

Figure CN224197254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of demolding mold technology, and more specifically, to an angle-adjustable angle ejection mechanism and a demolding mold. Background Technology
[0002] In mold structure, the inclined ejector is a common product demolding method. It not only allows the product to be easily disengaged from the mold, but also plays a role in balancing the product during the ejection process.
[0003] In existing technologies, during mold processing, product demolding typically employs a fixed-angle ejector pin structure. However, for products of different shapes and sizes, this fixed-angle ejector pin structure cannot meet all requirements, resulting in poor demolding performance and even product damage. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an angle-adjustable angle ejection mechanism and a demolding mold, which addresses the above-mentioned deficiencies of the prior art.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] On one hand, this utility model provides an angle-adjustable inclined ejection mechanism, comprising two detachably connected fixed blocks; a sliding groove is provided on the opposite side of the two fixed blocks along their length direction; a sliding block is slidably disposed in the sliding groove; an inclined ejection connecting seat is installed between the two sliding blocks; the two sides of the inclined ejection connecting seat are respectively connected to the two sliding blocks; an inclined ejection rod is also provided on the inclined ejection connecting seat between the two sliding blocks; the inclined ejection connecting seat is provided with a mounting groove; one end of the inclined ejection rod is inserted into the mounting groove and rotatably connected to the inclined ejection connecting seat through a rotating shaft; the inclined ejection connecting seat is also provided with an angle adjustment component for adjusting the tilt angle of the inclined ejection rod.
[0007] The angle-adjustable tilting ejector mechanism of this utility model includes an angle-adjusting component comprising a gear fixedly connected to the tilting ejector rod, a rack movably disposed in the mounting groove and meshing with any number of tooth slots of the gear, and an unlocking rod for releasing the gear from the meshing and fixed state of the rack; the unlocking rod is movably connected to the tilting ejector connecting seat.
[0008] The adjustable-angle ejection mechanism of this utility model comprises a gear vertically disposed in the mounting groove; a rack located below the gear; guide rods and unlocking rods respectively disposed on both sides of the rack; the guide rods being slidably connected to the inclined ejection connecting seat; one end of the guide rod being fixedly connected to the rack, and the other end being provided with an elastic element; the elastic element providing an elastic force to the guide rod and the rack toward the gear;
[0009] The angle-adjustable angle ejection mechanism of this utility model includes a guide rod with a non-circular cross-section; a mounting groove further includes a positioning block to support the guide rod; a guide groove that fits the outer contour of the guide rod and allows the guide rod to pass through is provided through the positioning block; a limiting block is provided at one end of the guide rod connected to the elastic element to prevent the guide rod from detaching from the fixing block; and an adjustable groove located on one side of the fixing block for placing the elastic element and the limiting block and communicating with the guide groove is provided.
[0010] The adjustable-angle ejection mechanism of this utility model includes a non-free state when the unlocking rod drives the rack to abut against the positioning block, the elastic element is misaligned and separated from the rack, and the angled ejection rod can rotate relative to the angled ejection connecting seat; when the rack loses the force of the unlocking rod, the elastic element automatically resets to a free state, at which time the limiting block abuts against the positioning block, the gear meshes with the rack, and the angled ejection rod is fixed relative to the angled ejection connecting seat.
[0011] The angle-adjustable tilting ejection mechanism of this utility model, wherein the extension line of the central axis of the guide rod coincides with the extension line of the central axis of the unlocking rod;
[0012] The adjustable-angle ejection mechanism of this utility model includes an inclined ejection connector with a through hole corresponding to the rack and for the movable placement of the unlocking rod; an internal thread on the inner wall of the through hole; an external thread on the outer surface of the unlocking rod that engages with the internal thread; a groove on the nut of the unlocking rod for inserting an external screwdriver; and the unlocking rod can move closer to or further away from the rack along the through hole.
[0013] The angle-adjustable tilting ejection mechanism of this utility model includes a first connecting rod at the first end of each of the two fixing blocks and a second connecting rod at the second end of each of the two fixing blocks; both ends of the first connecting rod are fixedly connected to the first ends of the two fixing blocks by screws; both ends of the second connecting rod are fixedly connected to the second ends of the two fixing blocks by screws.
[0014] On the other hand, this utility model also provides a demolding mold, which includes a mold base; an ejector pin back plate is installed on the mold base; and an inclined ejection mechanism as described above is installed on the ejector pin back plate.
[0015] The beneficial effects of this utility model are as follows: the inclined ejection mechanism and the demolding mold are ingeniously designed and can be detachably connected by two fixed blocks, making the entire mechanism easy to assemble and maintain, thus improving production efficiency; through the angle adjustment component, the tilt angle of the inclined ejector rod can be easily adjusted to adapt to the demolding requirements of different products, reducing wear on the mold caused by inappropriate force and angle, and enabling more effective demolding of products, reducing product damage caused by improper demolding, and improving the flexibility and adaptability of the equipment. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a structural schematic diagram of an angle-adjustable inclined ejection mechanism according to Embodiment 1 of this utility model;
[0018] Figure 2 This is a schematic diagram of the angle unlocking state of the inclined top rod and the inclined top connecting seat in Embodiment 1 of this utility model;
[0019] Figure 3 This is a schematic diagram of the angle locking state of the inclined top rod and the inclined top connecting seat in Embodiment 1 of this utility model. Detailed Implementation
[0020] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.
[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0022] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0023] Furthermore, the terms indicating orientation, such as "up, down, front, back, left, right, upper end, lower end, longitudinal," etc., are all based on the posture and position of the device or equipment described in this solution during normal use.
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.
[0025] Example 1:
[0026] A preferred embodiment of this utility model provides an angle-adjustable inclined ejection mechanism, such as... Figure 1-3 As shown, the device includes two detachably connected fixing blocks 11. In this embodiment, the fixing blocks 11 are elongated. Sliding grooves 111 are provided on opposite sides of the two fixing blocks 11 along their length. Sliding blocks 12 slide within the sliding grooves 111. A slanted top connecting seat 13 is installed between the two sliding blocks 12. Both sides of the slanted top connecting seat 13 are connected to the two sliding blocks 12. In this embodiment, both sides of the slanted top connecting seat 13 have outwardly protruding protrusion connecting portions, and the sliding blocks 12 have insertion grooves that fit with the protrusion connecting portions for interference fit. Installation is simple. A slanted top rod 14 is also provided on the slanted top connecting seat 13 between the two sliding blocks 12. The slanted top connecting seat 13 has an installation groove 131. One end of the slanted top rod 14 is inserted into the installation groove 131 and rotatably connected to the slanted top connecting seat 13 via a rotating shaft 132. An angle adjustment component 15 for adjusting the tilt angle of the slanted top rod 14 is also provided on the slanted top connecting seat 13.
[0027] This ingeniously designed angled ejector mechanism features a detachable connection between two fixed blocks, making the entire mechanism easy to assemble and maintain, thus improving production efficiency. The angle adjustment component allows for easy adjustment of the angled ejector rod's tilt angle to accommodate the demolding requirements of different products, reducing wear on the mold caused by inappropriate force and angle. This enables more effective product demolding, minimizing product damage due to improper demolding, and enhancing the equipment's flexibility and adaptability.
[0028] In this embodiment, the angle adjustment assembly 15 includes a gear 151 fixedly connected to the inclined push rod 14, a rack 152 movably disposed in the mounting groove 131 and meshing with any number of tooth slots of the gear 151, and an unlocking rod 153 for releasing the meshing and fixing state of the gear 151 and the rack 152; the unlocking rod 153 is movably connected to the inclined push rod connecting seat 13. The meshing structure of the gear and rack not only enables precise angle adjustment of the inclined push rod 14, but also provides a fixed angle adjustment for each tooth slot, ensuring the accuracy and repeatability of the adjustment, and also keeps the angle of the inclined push rod 14 stable, preventing accidental changes due to external forces or vibrations, thus ensuring the stability of the production process.
[0029] Furthermore, the gear 151 is vertically positioned in the mounting groove 131; the rack 152 is located below the gear 151; this not only results in a more compact spatial layout, improving the space utilization within the mold, but also helps maintain stable meshing of the gear and rack, reducing offset caused by gravity or other external forces; guide rods 154 and unlocking rods 153 are respectively provided on both sides of the rack 152; the guide rods 154 are slidably connected to the inclined top connecting seat 13, providing stable guidance for the rack 152, ensuring correct meshing between the gear and rack, and improving adjustment accuracy; one end of the guide rod 154 is fixedly connected to the rack 152, and the other end is provided with an elastic element 155; the elastic element 155 provides an elastic force to the guide rod 154 and the rack 152 towards the gear 151.
[0030] Furthermore, the cross-section of the guide rod 154 is a non-circular structure; in this embodiment, the guide rod 154 is a rectangular rod structure, which can effectively prevent the guide rod from rotating during linear movement, ensuring the linear movement and stability of the rack; the mounting groove 131 is also provided with a positioning block 133 to support the guide rod 154; the positioning block 133 is provided with a guide groove 134 that is adapted to the outer contour of the guide rod 154 and allows the guide rod 154 to pass through, which improves the guiding accuracy and reduces the error during the movement of the rack; the end of the guide rod 154 connected to the elastic element 155 is provided with a limiting block 156 to prevent the guide rod 154 from disengaging from the fixed block 11; since the movement of the guide rod 154 is restricted within the guide groove 134, this design helps to reduce unnecessary wear and extend the service life of the guide rod and the positioning block; the inclined top connecting seat 13 is located on one side of the fixed block 11 and is provided with an active groove 135 for placing the elastic element 155 and the limiting block 156 and communicating with the guide groove 134; the space utilization rate is high.
[0031] like Figure 2 The diagram illustrates the angle unlocking state of the inclined push rod and the inclined push connecting seat. The unlocking rod 153 applies a force to the rack 152, driving the rack 152 away from the gear until the rack 152 abuts against the positioning block 133. At this point, the elastic element 155 is in a non-free state, and the gear 151 and the rack 152 are misaligned and separated without interference. The inclined push rod 14 can rotate relative to the inclined push connecting seat 13. In the unlocked state, the operator can easily adjust the angle of the inclined push rod 14 without worrying that the meshing of the gear and rack will hinder the adjustment process.
[0032] like Figure 3 The diagram shows the angle-locked state of the inclined ejector rod and the inclined ejector connecting seat. When the rack 151 loses the force of the unlocking rod 153, the elastic element 155 automatically resets to a free state. At this time, the limit block 156 abuts against the positioning block 133, the gear 151 re-meshes with the rack 152, and the inclined ejector rod 14 is relatively fixed with the inclined ejector connecting seat 13. This ensures the precise positioning of the inclined ejector rod at the set angle, which is beneficial to improving the demolding accuracy of the product. After the rack 152 meshes with the gear 151, the position of the inclined ejector rod 14 is fixed, which enhances the stability of the entire inclined ejection mechanism and reduces vibration and displacement during the demolding process.
[0033] Furthermore, the extension line of the central axis of the guide rod 154 coincides with the extension line of the central axis of the unlocking rod 153.
[0034] Furthermore, the inclined top connecting seat 13 is provided with a through hole 136 corresponding to the rack 152 and for the unlocking rod 153 to be movably placed; the inner wall of the through hole 136 is provided with an internal thread; the outer surface of the unlocking rod 153 is provided with an external thread that engages with the internal thread; the nut of the unlocking rod 153 is provided with a slot for inserting an external screwdriver, making the adjustment process more convenient and quick; the unlocking rod can be precisely moved closer to or further away from the rack 152 along the through hole 136, thereby achieving fine adjustment of the angle of the inclined top rod 14; the threaded connection provides a stable connection method, and compared with other connection methods, the threaded connection performs better in terms of load-bearing capacity and preventing loosening, and has the characteristics of precise adjustment, convenient operation, improved equipment reliability and convenient maintenance.
[0035] Furthermore, a first connecting rod 16 is provided at the first end of each of the two fixed blocks 11, and a second connecting rod 17 is provided at the second end of each of the two fixed blocks 11. Both ends of the first connecting rod 16 are fixedly connected to the first ends of the two fixed blocks 11 by screws; both ends of the second connecting rod 17 are fixedly connected to the second ends of the two fixed blocks 11 by screws. The connection method of the first connecting rod 16 and the second connecting rod 17 increases the overall stability of the fixed blocks 11, making the entire inclined ejection mechanism more stable during operation and reducing vibration and displacement. Through the screw connection, the first connecting rod 16 and the second connecting rod 17 can be easily assembled onto the fixed blocks 11. Similarly, they can be quickly disassembled when it is necessary to maintain or replace structures such as sliding blocks or inclined ejection connecting seats, which has significant advantages in simplifying assembly and maintenance processes, improving production efficiency and safety.
[0036] Example 2
[0037] A demolding mold includes a mold base; an ejector back plate is mounted on the mold base; and an angled ejection mechanism as described in Embodiment 1 is mounted on the ejector back plate.
[0038] The demolding mold is ingeniously designed with two fixed blocks that can be detachably connected, making the entire mechanism easy to assemble and maintain, thus improving production efficiency. The angle adjustment component allows for easy adjustment of the tilt angle of the slanted ejector rod to adapt to the demolding requirements of different products, reducing wear on the mold caused by inappropriate force and angle, enabling more effective product demolding, reducing product damage caused by improper demolding, and improving the flexibility and adaptability of the equipment.
[0039] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. An angle-adjustable inclined ejection mechanism, characterized in that, The device includes two detachably connected fixing blocks; each fixing block has a corresponding groove along its length on one side; a sliding block is slidably disposed in the groove; an inclined top connecting seat is installed between the two sliding blocks; both sides of the inclined top connecting seat are connected to the two sliding blocks respectively; an inclined top rod is also disposed on the inclined top connecting seat between the two sliding blocks; the inclined top connecting seat has an installation groove; one end of the inclined top rod is inserted into the installation groove and rotatably connected to the inclined top connecting seat through a rotating shaft; the inclined top connecting seat also has an angle adjustment component for adjusting the tilt angle of the inclined top rod.
2. The inclined ejection mechanism according to claim 1, characterized in that, The angle adjustment assembly includes a gear fixedly connected to the inclined push rod, a rack movably disposed in the mounting groove and meshing with any number of tooth slots of the gear, and an unlocking rod for releasing the gear from the meshing and fixed state of the rack; the unlocking rod is movably connected to the inclined push connecting seat.
3. The inclined ejection mechanism according to claim 2, characterized in that, The gear is vertically disposed in the mounting groove; the rack is located below the gear; a guide rod and an unlocking rod are respectively disposed on both sides of the rack; the guide rod is slidably connected to the inclined top connecting seat; one end of the guide rod is fixedly connected to the rack, and the other end is provided with an elastic element; the elastic element provides an elastic force to the guide rod and the rack toward the gear.
4. The inclined ejection mechanism according to claim 3, characterized in that, The guide rod has a non-circular cross-section; the mounting groove is also provided with a positioning block to support the guide rod; the positioning block is provided with a guide groove that is adapted to the outer contour of the guide rod and allows the guide rod to pass through; the end of the guide rod connected to the elastic element is provided with a limiting block to prevent the guide rod from detaching from the fixing block; the inclined top connecting seat is located on one side of the fixing block and is provided with a movable groove for placing the elastic element and the limiting block and communicating with the guide groove.
5. The inclined ejection mechanism according to claim 4, characterized in that, When the unlocking lever drives the rack to abut against the positioning block, the elastic element is in a non-free state, the gear and the rack are misaligned and separated, and the inclined push rod can rotate relative to the inclined push connecting seat; when the rack loses the force of the unlocking lever, the elastic element automatically resets to a free state, at which time the limiting block abuts against the positioning block, the gear meshes with the rack, and the inclined push rod is fixed relative to the inclined push connecting seat.
6. The inclined ejection mechanism according to any one of claims 3-5, characterized in that, The extension line of the central axis of the guide rod coincides with the extension line of the central axis of the unlocking rod.
7. The inclined ejection mechanism according to any one of claims 2-5, characterized in that, The inclined top connecting seat is provided with a through hole corresponding to the rack and for the unlocking rod to be movably placed; the inner wall of the through hole is provided with an internal thread; the outer surface of the unlocking rod is provided with an external thread that is threaded to engage with the internal thread; the nut of the unlocking rod is provided with a groove for inserting an external screwdriver; the unlocking rod can move closer to or further away from the rack along the through hole.
8. The inclined ejection mechanism according to claim 1, characterized in that, The first end of each of the two fixing blocks is provided with a first connecting rod, and the second end of each of the two fixing blocks is provided with a second connecting rod; both ends of the first connecting rod are fixedly connected to the first end of each of the two fixing blocks by screws; both ends of the second connecting rod are fixedly connected to the second end of each of the two fixing blocks by screws.
9. A demolding mold, characterized in that, It includes a mold base; an ejector back plate is mounted on the mold base; and an angled ejection mechanism as described in any one of claims 1-8 is mounted on the ejector back plate.