Slide demolding mechanism with pitched roof
By combining the inclined ejector assembly, slider, and shovel base, parallel demolding of undercut products is achieved, solving the problem of product damage during demolding in existing technologies and improving product quality and production efficiency.
Patent Information
- Application Number
- CN202423056772.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-11
AI Technical Summary
In existing technologies, products with undercuts are prone to tearing during demolding, affecting product quality and even leading to product scrap.
The mold adopts a combination structure of inclined ejector assembly, slider, shovel base and inclined guide post. When the mold opens, the upper platen drives the shovel base and slider to move. Under the guidance of the shovel base, the inclined ejector assembly achieves parallel release with the workpiece. Combined with the elastic force of the elastic element to reset, forced release is avoided.
It improved product quality and yield, prevented product damage, and enhanced demolding effect and production efficiency.
Smart Images

Figure CN223532942U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold demolding technology, and in particular to a sliding demolding mechanism with an inclined ejector. Background Technology
[0002] Products with undercuts are typically released after molding by using a slider. The slider moves along the direction of the undercut to force the release, but this method can easily damage the product, affecting its quality and potentially rendering it unusable.
[0003] Therefore, further improvements are necessary. Utility Model Content
[0004] The purpose of this utility model is to provide a sliding part with an inclined ejector for demolding that is simple in structure, has high production efficiency, good release effect, good product quality, and strong practicality, so as to overcome the shortcomings of the prior art.
[0005] A sliding ejector mechanism with a slanted ejector, designed for this purpose, includes an upper mold plate and a lower mold plate. Its features include: a slanted ejector assembly, a slider, a shovel base, and slanted guide pillars. The slanted guide pillars are mounted on the upper mold plate and pass through the slider. The slider is positioned between the upper and lower mold plates. The slanted ejector assembly passes through the slider. The shovel base is mounted on the upper mold plate, and one end of the slanted ejector assembly abuts against the shovel base. When the mold opens, the upper mold plate drives the shovel base to move in a first direction, and the upper mold plate, through the slanted guide pillars, drives the slider to move in a second direction, thereby disengaging the slider from the workpiece. The slanted ejector assembly, guided by the shovel base, moves in the first direction, thereby disengaging the slanted ejector assembly from the workpiece.
[0006] It also includes an elastic element, which is disposed between the slider and the inclined ejector assembly; when the inclined ejector assembly moves in the first direction under the guidance of the shovel base, it compresses the elastic element; when the mold is closed, the inclined ejector assembly is reset under the elastic force of the elastic element.
[0007] The inclined top assembly includes an inclined top and a spring pin connected to each other. A first mounting inclined hole is provided on the slider. One end of the spring pin abuts against the shovel base and the other end extends into the first mounting inclined hole. One end of the inclined top extends into the first mounting inclined hole. An elastic element is provided between the spring pin and the bottom wall of the first mounting inclined hole. When the inclined top assembly moves in the first direction or resets, the spring pin moves on the first mounting inclined hole.
[0008] The shovel base is provided with a straight body, and one end of the spring pin abuts against the straight body; the inclined jack assembly moves in the first direction under the guidance of the straight body.
[0009] It also includes a connecting block, which is installed at the bottom of the shovel base. The slider is provided with a first guide slope, and the upper template and the connecting block are provided with a second guide slope. The slider moves in the second direction under the cooperation of the first guide slope and the second guide slope.
[0010] The lower template is equipped with a clearance groove; when the mold is closed, the lower end of the connecting block is inserted into the clearance groove.
[0011] The upper template is provided with an installation groove, the shovel base is installed in the installation groove, and one end of the spring pin extends into the installation groove.
[0012] The slider is provided with a mounting block, and the mounting block is provided with a second mounting inclined hole. The other end of the inclined top is inserted into the second mounting inclined hole. When the inclined top assembly moves or resets in the first direction, the other end of the inclined top moves on the second mounting inclined hole.
[0013] The upper template is provided with a third inclined mounting hole, the slider is provided with a fourth inclined mounting hole, the upper end of the inclined guide post is installed in the third inclined mounting hole, and the lower end of the inclined guide post passes through the fourth inclined mounting hole.
[0014] The inclined top is provided with a first fixing hole, and the spring pin is provided with a second fixing hole. Fasteners are provided on the first fixing hole and the second fixing hole to connect the inclined top and the spring pin.
[0015] The sliding ejector demolding mechanism of this utility model, by setting an angled ejector assembly, a slider, a shovel base, and an angled guide post, allows the upper mold plate to drive the shovel base to move in the first direction (upward) when the mold opens. The upper mold plate also drives the slider to move in the second direction (to the right) through the angled guide post. The angled ejector assembly moves in the first direction under the guidance of the shovel base, realizing the backlash release between the angled ejector assembly and the workpiece. The backlash release direction is parallel to the mold opening direction, rather than moving along the backlash direction to forcibly release the workpiece. This can avoid damaging the product and improve product quality and yield. Attached Figure Description
[0016] Figure 1 This is a cross-sectional view of the demolding mechanism in one embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of the overall structure of the demolding mechanism in one embodiment of the present invention.
[0018] Figure 3 This is a partial structural schematic diagram of the demolding mechanism in one embodiment of the present invention.
[0019] Figure 4 This is a schematic diagram of the overall structure of the slider in one embodiment of the present invention.
[0020] Figure 5 This is a schematic diagram of the overall structure of the slider in another position in one embodiment of the present invention.
[0021] Figure 6 This is a schematic diagram of the assembly structure of the inclined top, spring pin, mounting block and elastic element in one embodiment of the present invention.
[0022] Figure 7This is an exploded structural diagram of the inclined top, spring pin, mounting block and elastic element in one embodiment of the present invention.
[0023] Figure 8 This is a schematic diagram of the overall structure of the upper template in one embodiment of the present invention.
[0024] Figure 9 This is an exploded structural diagram of the lower template and connecting block in one embodiment of the present invention.
[0025] Figure 10 This is a schematic diagram of the overall structure of the workpiece in one embodiment of the present invention.
[0026] Figure 11 This is a schematic diagram of the overall structure of the sloping top in one embodiment of the present invention. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0028] See Figures 1-11 This part has a slanted ejector mechanism, including an upper template 1 (plate A), a lower template 2 (plate B), a slanted ejector assembly, a slider 4, a shovel base 5, and a slanted guide post 6. The slanted guide post 6 is installed on the upper template 1 and passes through the slider 4. The slider 4 is located between the upper template 1 and the lower template 2. The slanted ejector assembly passes through the slider 4. The shovel base 5 is installed on the upper template 1, and one end of the slanted ejector assembly abuts against the shovel base 5. When the mold opens (i.e., the upper template 1 and the lower template 2 open), the upper template 1 drives the shovel base 5 to move in the first direction A (upward), and the upper template 1 drives the slider 4 to move in the second direction B (to the right) through the slanted guide post 6. The slanted ejector assembly moves in the first direction A under the guidance of the shovel base 5, realizing the release between the slanted ejector assembly and the workpiece 3. Then the mold continues to open, and the slider 4 continues to move in the second direction B, realizing the release between the slider 4 and the workpiece 3.
[0029] It also includes an elastic element 7, which is a spring, and is disposed between the slider 4 and the inclined ejector assembly; when the inclined ejector assembly moves in the first direction A under the guidance of the shovel base 5, it compresses the elastic element 7; when the mold is closed, the inclined ejector assembly resets (i.e. moves downward) under the elastic force of the elastic element 7.
[0030] The inclined top assembly includes an inclined top 8 and a spring pin 9 connected to each other. The slider 4 is provided with a first mounting inclined hole 10. One end of the spring pin 9 abuts against the shovel base 5 and the other end extends into the first mounting inclined hole 10. One end of the inclined top 8 extends into the first mounting inclined hole 10. The elastic element 7 is provided between the spring pin 9 and the bottom wall of the first mounting inclined hole 10. When the inclined top assembly moves or resets in the first direction A, the spring pin 9 moves on the first mounting inclined hole 10.
[0031] The shovel base 5 is provided with a straight body 11, and one end of the spring pin 9 abuts against the straight body 11; the inclined top assembly moves in the first direction A under the guidance of the straight body 11.
[0032] It also includes a connecting block 12, which is installed at the bottom of the shovel base 5. A first guide slope 13 is provided on the slider 4, and a second guide slope 14 is provided on the upper template 1 and the connecting block 12. The slider 4 moves in the second direction B under the cooperation of the first guide slope 13 and the second guide slope 14.
[0033] The lower template 2 is provided with a clearance groove 15; when the mold is closed, the lower end of the connecting block 12 is inserted into the clearance groove 15.
[0034] The upper template 1 is provided with an installation groove 16, the shovel base 5 is installed in the installation groove 16, and one end of the spring pin 9 extends into the installation groove 16.
[0035] The slider 4 is provided with a mounting block 17, and the mounting block 17 is provided with a second mounting inclined hole 18. The other end of the inclined top 8 is inserted into the second mounting inclined hole 18. When the inclined top assembly moves or resets in the first direction A, the other end of the inclined top 8 moves on the second mounting inclined hole 18.
[0036] The upper template 1 is provided with a third mounting inclined hole, the slider 4 is provided with a fourth mounting inclined hole 19, the upper end of the inclined guide post 6 is installed on the third mounting inclined hole, and the lower end of the inclined guide post 6 passes through the fourth mounting inclined hole 19.
[0037] The inclined top 8 is provided with a first fixing hole 20, and the spring pin 9 is provided with a second fixing hole 21. Fasteners 22 are provided on the first fixing hole 20 and the second fixing hole 21 to connect the inclined top 8 and the spring pin 9. The fasteners 22 are pins.
[0038] The workpiece 3 is provided with an undercut 23, and the other end of the inclined top 8 is provided with an undercut mating part 24. The undercut mating part 24 is inserted into the undercut 23. When the inclined top assembly moves in the first direction A under the guidance of the shovel base 5, the undercut mating part 24 moves upward and disengages from the undercut 23, realizing the undercut disengagement between the inclined top assembly and the workpiece 3. The workpiece 3 is provided with a groove 25, and the slider 4 is provided with an insert 26. The insert 26 is inserted into the groove 25. When the upper template 1 drives the slider 4 to move in the second direction B through the inclined guide post 6, the insert 26 disengages from the groove 25, realizing the disengagement.
[0039] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sliding ejector mechanism with an inclined ejector, comprising an upper template (1) and a lower template (2), characterized in that: It also includes a slanted top assembly, a slider (4), a shovel base (5), and a slanted guide post (6). The slanted guide post (6) is installed on the upper template (1) and passes through the slider (4). The slider (4) is set between the upper template (1) and the lower template (2). The slanted top assembly passes through the slider (4). The shovel base (5) is installed on the upper template (1). One end of the slanted top assembly abuts against the shovel base (5). When the mold is opened, the upper template (1) drives the shovel base (5) to move in the first direction (A). The upper template (1) drives the slider (4) to move in the second direction (B) through the slanted guide post (6), thereby realizing the disengagement between the slider (4) and the workpiece (3). The slanted top assembly moves in the first direction (A) under the guidance of the shovel base (5), thereby realizing the disengagement between the slanted top assembly and the workpiece (3).
2. The sliding demolding mechanism with inclined ejector as described in claim 1, characterized in that: It also includes an elastic element (7), which is disposed between the slider (4) and the inclined ejector assembly; when the inclined ejector assembly moves in the first direction (A) under the guidance of the shovel base (5), it compresses the elastic element (7); when the mold is closed, the inclined ejector assembly is reset under the elastic force of the elastic element (7).
3. The sliding ejector mechanism with inclined ejector as described in claim 2, characterized in that: The inclined top assembly includes an inclined top (8) and a spring pin (9) connected to each other. A first mounting inclined hole (10) is provided on the slider (4). One end of the spring pin (9) rests on the shovel base (5) and the other end extends into the first mounting inclined hole (10). One end of the inclined top (8) extends into the first mounting inclined hole (10). An elastic element (7) is provided between the spring pin (9) and the bottom wall of the first mounting inclined hole (10). When the inclined top assembly moves or resets in the first direction (A), the spring pin (9) moves on the first mounting inclined hole (10).
4. The sliding demolding mechanism with inclined ejector according to claim 3, characterized in that: A straight section (11) is provided on the shovel base (5), and one end of the spring pin (9) abuts against the straight section (11); the inclined top assembly moves in the first direction (A) under the guidance of the straight section (11).
5. The sliding mold release mechanism with inclined ejector according to claim 4, characterized in that: It also includes a connecting block (12), which is installed at the bottom of the shovel base (5). A first guide slope (13) is provided on the slider (4), and a second guide slope (14) is provided on the upper template (1) and the connecting block (12). The slider (4) moves in the second direction (B) under the cooperation of the first guide slope (13) and the second guide slope (14).
6. The sliding ejector mechanism with inclined ejector as described in claim 5, characterized in that: The lower template (2) is provided with a clearance groove (15); when the mold is closed, the lower end of the connecting block (12) is inserted into the clearance groove (15).
7. The sliding ejector mechanism with inclined ejector as described in claim 3, characterized in that: The upper template (1) is provided with an installation groove (16), the shovel base (5) is installed in the installation groove (16), and one end of the spring pin (9) extends into the installation groove (16).
8. The sliding mold release mechanism with inclined ejector according to claim 3, characterized in that: The slider (4) is provided with a mounting block (17), and the mounting block (17) is provided with a second mounting inclined hole (18). The other end of the inclined top (8) is inserted into the second mounting inclined hole (18). When the inclined top assembly moves or resets in the first direction (A), the other end of the inclined top (8) moves on the second mounting inclined hole (18).
9. The sliding demolding mechanism with inclined ejector according to claim 1, characterized in that: The upper template (1) is provided with a third mounting oblique hole, the slider (4) is provided with a fourth mounting oblique hole (19), the upper end of the oblique guide post (6) is installed on the third mounting oblique hole, and the lower end of the oblique guide post (6) passes through the fourth mounting oblique hole (19).
10. The sliding mold release mechanism with inclined ejector according to claim 3, characterized in that: The inclined top (8) is provided with a first fixing hole (20), and the spring pin (9) is provided with a second fixing hole (21). Fasteners (22) are provided on the first fixing hole (20) and the second fixing hole (21) to connect the inclined top (8) and the spring pin (9).