Top pressing module, multiple demolding mechanism and multiple demolding method

Abstract

The application relates to the technical field of injection molds, in particular to a top pressure mold set, a multiple demolding mechanism and a multiple demolding method. The top pressure mold set comprises a top pressure assembly, a shovel base, a slider seat connected to the shovel base and moving under the driving of the shovel base, and a pressing plate arranged below the slider seat. The top pressure assembly is arranged to be inclined to a horizontal plane at a preset angle, the top of the top pressure assembly is connected to the slider seat, and the bottom is used to cooperate with a male mold and a female mold to form a product cavity. The top pressure assembly comprises a fixed top pressure part connected to the pressing plate and a sliding top pressure part connected to the pressing plate, and the sliding top pressure part is connected to the slider seat. When the shovel base and the slider seat drive the product to be demolded, the top pressure mold set can effectively avoid the product from being damaged, and the multiple demolding mechanism and the multiple demolding method provided by the application have the same beneficial effects.

Description

Technical Field

[0001] This application relates to the field of injection mold technology, and in particular to an ejector mold assembly, a multiple demolding mechanism, and a multiple demolding method. Background Technology

[0002] Molds are one of the most important pieces of equipment in material forming and processing. Products produced using molds have many advantages, such as high precision, high strength, and long lifespan. Mold processing is a crucial technological foundation for my country's manufacturing industry. Demolding of injection molded parts is an unavoidable issue in mold processing. Poor demolding has a significant impact on the quality of injection molded products. Mild demolding problems may cause scratches or patterns on the product surface, while severe demolding problems can lead to warping, deformation, or even breakage. Therefore, solving the problem of poor demolding in injection molding affects the quality of the final injection molded product. Currently, the demolding process for injection molded parts uses a two-stage demolding process where the ejector first separates from the product, and then the male and female molds separate. However, during the complete withdrawal of the ejector, there is a phenomenon of pulling on the product, which inevitably causes surface damage, and the product qualification rate needs further improvement. Summary of the Invention

[0003] This application provides a top-pressing mold assembly to solve the problem of product damage during demolding of injection-molded products, thereby improving the product yield. This application also provides a multiple demolding mechanism using this top-pressing mold assembly and a multiple demolding method applied to the multiple demolding mechanism.

[0004] In a first aspect, this application provides a top-pressing module, including a top-pressing component, a shovel base, a slider seat connected to the shovel base and moving under the drive of the shovel base, and a pressure plate disposed below the slider seat; the top-pressing component is inclined relative to the horizontal plane at a preset angle, the top of the top-pressing component is connected to the slider seat, and the bottom is used to cooperate with the male mold and the female mold to form a cavity for preparing the product; the top-pressing component includes a fixed top-pressing member fixedly connected to the pressure plate and a sliding top-pressing member slidably connected to the pressure plate, and the sliding top-pressing member is connected to the slider seat.

[0005] In some embodiments, a stop member is provided on the upper surface of the pressure plate in a direction perpendicular to the pressing assembly. The fixed pressing member has a stop hole adapted to the stop member through it in the thickness direction. The sliding pressing member has a sliding hole through it in the thickness direction. The size of the sliding hole in the extension direction of the pressing assembly is larger than the size of the stop member. The stop member passes through the stop hole and the sliding hole.

[0006] In some embodiments, the sliding top pressing member includes a core-pulling frame, the core-pulling frame having a first sliding cavity for accommodating a fixed top pressing member, the fixed top pressing member being a stop insert disposed in the first sliding cavity.

[0007] In some embodiments, the sliding top pressing member further includes an inner core puller, and the stop insert opens a second sliding cavity to accommodate the inner core puller, and the inner core puller is slidably disposed in the second sliding cavity.

[0008] In some embodiments, the end of the pressure plate near the top pressure assembly is configured as a guide slope that fits the top pressure assembly, and the stop member is vertically disposed on the guide slope.

[0009] In some embodiments, a displacement hole is provided at the end of the pressure plate away from the top pressure assembly, and the bottom end of the shovel base is placed in the displacement hole.

[0010] In some embodiments, the preset angle is 45°.

[0011] Secondly, this application provides a multiple demolding mechanism, including a female mold, a male mold disposed below the female mold, and a top-pressing module disposed on one side of the mating surface of the male mold and the female mold, as described above, wherein the male mold, the female mold and the top-pressing module cooperate to form a cavity for preparing a product.

[0012] In some embodiments, the female mold is fixedly installed, the male mold is connected to a lifting drive mechanism, and the male mold is provided with an ejection mechanism for ejecting the molded product out of the cavity.

[0013] Thirdly, this application provides a multiple demolding method, employing the multiple demolding mechanism described above, including:

[0014] The floating plate mechanism separates from the first preset distance and drags the shovel base upward, and the shovel base drives the slider seat to move horizontally in the direction away from the male mold;

[0015] The slider seat drives the sliding pressing component of the pressing module to slide out along a preset angle and exit the second preset distance, thus disengaging from the product buckle.

[0016] The male mold and female mold are separated so that the fixed pressing component of the female mold and the pressing mold assembly can be disengaged from the product undercut;

[0017] The ejection mechanism lifts and ejects the product from the mold.

[0018] Compared with the prior art, the above-mentioned technical solution provided in this application has the following advantages: When the top pressing module moves the slider seat driven by the shovel base and the slider seat drives the top pressing component to exit obliquely upward at a preset angle and detach from the product undercut, the fixed top pressing component is fixed and kept stationary by the pressure plate. The fixed top pressing component always presses against the product surface. The sliding top pressing component moves obliquely upward at a preset angle under the drive of the slider seat and exits and detaches from the product undercut. Due to the pressure of the fixed top pressing component, the product is effectively prevented from being pulled when the slider seat drives the sliding top pressing component to exit, thereby ensuring the integrity of the product surface and improving the product qualification rate. Afterwards, the female mold remains stationary, and the male mold and female mold separate to allow the product to detach from the undercut of the female mold and the fixed top pressing component. Finally, the ejection mechanism ejects the product from the male mold.

[0019] The multiple demolding mechanism provided in this application uses the above-mentioned top-pressure module, and the multiple demolding method is applied to the above-mentioned multiple demolding mechanism, and has the same beneficial effects. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0023] Figure 1 A front view of the multiple demolding mechanism provided in the embodiments of this application;

[0024] Figure 2 Bit Figure 1 Top view;

[0025] Figure 3 Bit Figure 2 Exploded view of the central pressing module;

[0026] Figure 4 for Figure 1 Longitudinal sectional view of the central pressing module during operation;

[0027] Figure 5 for Figure 4 A magnified view of the joint between the central pressing component and the male mold.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Female mold; 20. Male mold; 21. Ejection mechanism; 30. Shovel base; 31. Slider seat; 32. Pressure plate; 321. Guide slope; 33. Stop component; 34. Top pressing assembly; 341. Core pulling frame; 342. Stop insert; 343. Inner core pulling. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0032] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0033] To address the problem of product damage caused by traction during the demolding process of injection molds in existing technologies, this application provides a top-pressure mold assembly that can work with male and female molds to form products and achieve multiple demoldings, thereby avoiding traction damage to the product surface and improving the product qualification rate.

[0034] The top pressure module provided in the embodiments of this application is as follows: Figures 1 to 5As shown, the top-pressing module mainly consists of a top-pressing component 34, a shovel base 30, a slider seat 31, and a pressure plate 32. The shovel base 30 connects to a floating plate mechanism, moving under its influence, which in turn moves the slider seat 31 and the top-pressing component 34, allowing the top-pressing component 34 to partially detach from the product's undercut state. The slider seat 31 is horizontally positioned, with an opening at the end furthest from the top-pressing component 34. The lower end of the shovel base 30 passes through the opening in the slider seat 31 and connects to the slider. The pressure plate 32 is horizontally attached to and fixed below the slider seat 31. The end of the slider seat 31 closest to the top-pressing component 34 is connected to the top-pressing component 34. The top-pressing component 34 is positioned at a preset angle relative to the horizontal plane on the side of the mating surface of the male mold 20 and the female mold 10. The top of the top-pressing component 34 is connected to the slider seat 31, allowing it to move under the influence of the slider seat 31. The bottom surface of the top-pressing component 34, together with the male mold 20 and the female mold 10, forms the cavity required for product molding. The aforementioned preset angle is usually set to 45°, but in specific implementation, it can be flexibly set according to the needs of the molded product, the matching requirements of the top pressing component 34, the male mold 20, and the female mold 10.

[0035] The top-pressing assembly 34 has a plate-like structure and includes at least two parts: a fixed top-pressing component that remains stationary during product demolding and a sliding top-pressing component that can detach from the product surface after product molding to achieve product demolding. The fixed top-pressing component and the sliding top-pressing component are tightly fitted together and can slide relative to each other along the aforementioned preset angle. The fixed top-pressing component is fixedly pressed against the product surface by a fixed connecting plate 32. The sliding top-pressing component is connected to a slider seat 31, which, under the drive of the slider seat 31, works with the male mold 20, the female mold 10, and the fixed top-pressing component to form the product molding cavity. When demolding is required after product molding, the shovel base 30 drives the slider seat 31, which in turn drives the sliding top-pressing component to detach from the product along the preset angle. During this process, the fixed top-pressing component always remains pressed against the product surface to avoid pulling and damaging the product. Afterward, the female mold 10 and the plate 32, i.e., the fixed top-pressing component, remain stationary. The male mold 20 moves down, causing the product to detach from the inverted state of the female mold 10. The ejection mechanism 21 ejects the product from the male mold 20, allowing the production process of the next product to begin.

[0036] In one specific embodiment provided in this application, the end of the pressure plate 32 near the top pressure component 34 is configured as a guide slope 321. The guide slope 321 is attached to the top pressure component 34 and extends parallel to the top pressure component 34. That is, the guide slope 321 extends at the same preset angle as the top pressure component 34, thereby guiding the pressing and unpressing process of the sliding top pressure component. The pressure plate 32 is fixedly provided with a stop member 33 at the guide slope 321 and the top pressing assembly 34. The stop member 33 can be a stop pin. Correspondingly, the fixed top pressing member has a stop hole that matches the stop member 33 through its thickness direction. The stop member 33 and the stop hole can be appropriately interference-fitted to ensure that the fixed top pressing member remains stationary. The sliding top pressing member has a sliding hole through its thickness direction. The sliding hole has a certain length along the extension direction of the top pressing assembly 34. This length is greater than the size of the stop member 33 so that the sliding top pressing member can slide relative to the fixed top pressing member by fitting the sliding hole at different lengths of the sliding hole. The top of the sliding top pressing member is connected to the top side of the slider seat 31.

[0037] See Figure 3 and Figure 4 In another specific embodiment provided in this application, in order to improve the pressing effect of the fixed pressing member and reduce the traction force on the product when the sliding pressing member detaches from the product undercut, the sliding pressing member specifically adopts a core-pulling frame 341. The core-pulling frame 341 has a rectangular plate shape on the outside and a rectangular hollow first sliding cavity is opened inside parallel to the extension direction of the sliding pressing member. The fixed pressing member adopts a rectangular plate-shaped stop insert 342. The stop insert 342 is adapted to the first sliding cavity and is installed as a whole in the first sliding cavity and fixed in place by the stop member 33 and the pressure plate 32. The advantage of the above arrangement is that the bottom of the sliding pressing member is pressed against the surface of the product by the annular area formed by the fixed pressing member, which reduces the overall continuous contact area between the sliding pressing member and the product, thereby reducing the local traction force on the product surface when the sliding pressing member detaches from the product undercut.

[0038] It is understood that the shape of the stop insert 342 and the first sliding cavity is not limited to the above embodiment. In specific implementation, a suitable mating shape can be set as needed, as long as the tight fit between the stop insert 342 and the core-pulling frame 341 is ensured, the sealing of the cavity is guaranteed, and the core-pulling frame 341 slides smoothly relative to the stop insert 342.

[0039] Further reading Figures 3 to 5In a further embodiment provided in this application, in order to reduce the pulling force on the product when the male mold 20 and the female mold 10 separate after the core-pulling frame 341 detaches from the product undercut, the sliding top pressing component provided in this application embodiment also includes an inner core-pulling component 343. The stop-positioning component 342 has a second sliding cavity. The inner core-pulling component 343 is adapted to and accommodated in the second sliding cavity. The inner core-pulling component 343 can slide along the second sliding cavity under the drive of the core-pulling frame 341 / slider seat 31. The inner core-pulling component 343 also has a sliding hole through the thickness direction. The bottom end face of the stop-positioning component 342 is divided into a ring structure by the inner core-pulling component 343, which reduces the size of the continuous area of ​​contact between the stop-positioning component 342 and the product when it detaches from the product undercut, thereby reducing the pulling force of the stop-positioning component 342 on the product. During product molding, the bottom surfaces of the core-pulling frame 341, the stop insert 342, and the inner core-pulling element 343 cooperate with the male mold 20 and the female mold 10 to enclose the molding cavity. During demolding after product molding, the floating plate mechanism drives the shovel base 30 to move upward, and the shovel base 30 drives the slider seat 31 to move horizontally backward away from the male mold 20 and the female mold 10. The slider seat 31 drives the core-pulling frame 341 and the inner core-pulling element 343 to disengage from the product's undercut state. The inner core-pulling element 343 can be directly connected to the slider seat 31, or it can be connected to the slider seat 31 through the core-pulling frame 341. This embodiment employs a core-pulling frame 341 connected to a slider seat 31, and an inner core-pulling component 343 connected to the core-pulling frame 341. Specifically, the inner core-pulling component 343 has a locking protrusion at its top / bottom end perpendicular to its extension direction. A corresponding slot is cut in the stop insert 342 to allow the locking protrusion to pass through and be locked and fixed to the core-pulling frame 341. The core-pulling frame 341 acts on the locking protrusion of the inner core-pulling component 343, thereby causing the inner core-pulling component 343 to slide out from one side of the male mold 20 and the female mold 10. Slots are cut on both sides of the core-pulling frame 341 to form hanging ears. The slider seat 31 is connected to the core-pulling frame 341 on one side perpendicular to the extension direction of the core-pulling frame 341, and a slide rail is formed on both sides of the slot. The core-pulling frame 341 is fixed to the slider seat 31 by the hanging ears. The extension direction of the slide rail is perpendicular to the extension direction of the pressing component 34, thereby converting the horizontal movement of the slider seat 31 into the upward oblique movement of the sliding pressing component through the sliding overlap of the slide rail and the hanging ears.

[0040] In the above embodiments, by slidingly connecting the stop insert 342 inside the core-pulling frame 341, and slidingly connecting the inner core-pulling component 343 inside the stop insert 342, the continuous contact area between the fixed and sliding top pressure components and the product is reduced. This reduces the local traction force on the product when it is detached from the product and the product is snapped back, thereby improving the product's pass rate. In specific implementations, the structure is not limited to the above. It can also employ a structure where a fixed top pressure component is nested within a sliding top pressure component, and another set of sliding top pressure components is nested within a fixed top pressure component; a structure where a sliding top pressure component is nested within a fixed top pressure component, and another set of fixed top pressure components is nested within a sliding fixed top pressure component; or a structure where fixed and sliding top pressure components are alternately stacked.

[0041] After the initial demolding of the sliding top pressing component and the product is completed, the female mold 10 and the pressure plate 32 remain stationary, while the male mold 20 moves downward under the drive of the lifting mechanism. The product remains on the surface of the male mold 20 and moves downward as a whole with the male mold 20. The female mold 10 and the fixed top pressing component detach from the product and invert to complete the secondary demolding of the product. Finally, the ejection mechanism 21 ejects the product from the male mold 20 to complete the final demolding of the product.

[0042] In the specific embodiments provided in this application, a displacement hole is opened through the end of the pressure plate 32 away from the top pressure component 34, and the bottom end of the shovel base 30 extends into the displacement hole so that after the product is demolded, the shovel base 30 drives the entire top pressure component 34 and pressure plate 32 to move away, which facilitates the cleaning and glue injection processes of the male mold 20 and the female mold 10, and enters the production process of the next product.

[0043] This application also provides a multiple demolding mechanism, which utilizes the top-pressing module provided in the above embodiments. The multiple demolding mechanism further includes a male mold 20, a female mold 10, and a floating plate mechanism, etc., with other parts referring to the existing injection mold settings. One of the male mold 20 and the female mold 10 is a moving mold, and the other is a fixed mold. When the fixed top-pressing component of the top-pressing module is detached from the product, the fixed mold remains different, and the moving mold moves away from the fixed mold and the pressure plate 32. In one embodiment, the female mold 10 is a fixed mold fixed in a relatively upper position, and the male mold 20 is a moving mold fixed below the female mold 10. The bottom end of the male mold 20 is connected to a lifting drive mechanism, and an ejection mechanism 21 is provided inside the male mold 20. The aforementioned top-pressing module is located on one side of the mating surface of the male mold 20 and the female mold 10, working together to form the cavity for product molding. The settings of the floating plate mechanism, the lifting drive mechanism, and the ejection mechanism 21 can refer to the prior art. The core of this application lies in the improvement of the top-pressing module.

[0044] This application also provides a multiple demolding method, applied to the multiple demolding structure described above, the method comprising the following steps:

[0045] The floating plate mechanism separates from the first preset distance and drags the shovel base 30 upward, and the shovel base 30 drives the slider seat 31 to move horizontally in the direction away from the male mold 20;

[0046] The slider seat 31 drives the sliding top pressing component of the top pressing module to slide out of the second preset distance along a preset angle and disengage from the product buckle;

[0047] The male mold 20 and the female mold 10 are separated so that the female mold 10 and the fixed top pressing component of the top pressing module are disengaged from the product undercut;

[0048] The ejection mechanism 21 lifts and ejects the product from the mold 20.

[0049] The specific demolding process for a particular product is as follows:

[0050] After the product is formed, the mold uses the floating plate mechanism to separate the floating plate by 8mm, which drives the shovel base 30 to move upward.

[0051] Since the part of the shovel base 30 that extends into the slider seat 31 is engaged with the inclined surface of the slider seat, the shovel base 30 moves upward and causes the slider seat 31 to move horizontally backward away from the male mold 20 and the female mold 10.

[0052] The slider seat 31 slides and overlaps with the lugs of the slide rail and the core pull frame 341. With the help of the guide slope 321, the horizontal movement of the slider seat 31 is converted into the core pull frame 341 exiting obliquely upward. This allows the slider seat 31 to pull the sliding top pressing part core pull frame 341 and inner core pull 343 out obliquely upward by 1.25MM at a preset angle (such as 45°) to disengage from the product undercut.

[0053] The pressure plate 32 and the stop piece 33 / stop pin are used to fix the stop insert 342, press against the product surface, and ensure that the product is not pulled by the pulling force during the process of sliding the pressure piece, i.e., the core pull frame 341 and the inner core pull 343 being pulled off.

[0054] After the undercut is released, the male mold 20 moves downward under the drive of the lifting mechanism, the male mold 20 separates from the female mold 10, the female mold 10 and the fixed top pressure part are released from the undercut state of the product to achieve secondary demolding, the product remains on the surface of the male mold 20, the ejection mechanism 21 moves to eject the product from the male mold 20 to achieve final demolding, and the product is removed.

[0055] The top-pressing module, multiple demolding mechanism, and multiple demolding method provided in this application completely avoid the problem of product deformation caused by the sliding top-pressing component during withdrawal, thereby effectively eliminating the problem of product deformation caused by demolding, greatly improving production efficiency, and minimizing the risk of product defects.

[0056] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0057] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0058] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A top-pressure module, characterized in that, The device includes a top-pressing assembly, a shovel base, a slider seat connected to the shovel base and moving under the drive of the shovel base, and a pressure plate disposed below the slider seat. The top-pressing assembly is inclined relative to the horizontal plane at a preset angle. The top of the top-pressing assembly is connected to the slider seat, and the bottom is used to cooperate with the male mold and the female mold to form a cavity for preparing the product. The top-pressing assembly includes a fixed top-pressing component fixedly connected to the pressure plate and a sliding top-pressing component slidably connected to the pressure plate. The sliding top-pressing component is connected to the slider seat. The sliding top pressing component includes a core pulling frame, the core pulling frame having a first sliding cavity for accommodating the fixed top pressing component, the fixed top pressing component being a stop insert disposed in the first sliding cavity; The sliding top pressing component also includes an inner core puller, and the stop insert opens a second sliding cavity to accommodate the inner core puller, and the inner core puller is slidably disposed in the second sliding cavity; The pressure plate is provided with a stop member in a direction perpendicular to the top pressing assembly. The fixed top pressing member has a stop hole adapted to the stop member through it in the thickness direction. The sliding top pressing member has a sliding hole through it in the thickness direction. The size of the sliding hole in the extension direction of the top pressing assembly is larger than the size of the stop member. The stop member passes through the stop hole and the sliding hole.

2. The top-pressure module according to claim 1, characterized in that, The end of the pressure plate near the top pressure assembly is configured as a guide slope that fits the top pressure assembly, and the stop member is perpendicularly disposed on the guide slope.

3. The top-pressure module according to claim 1, characterized in that, A displacement hole is provided at the end of the pressure plate away from the top pressure assembly, and the bottom end of the shovel base is placed in the displacement hole.

4. The top-pressure module according to claim 1, characterized in that, The preset angle is 45°.

5. A multiple demolding mechanism, characterized in that, The device includes a female mold, a male mold located below the female mold, and a top-pressing mold as described in any one of claims 1-4, wherein the male mold, the female mold, and the top-pressing mold cooperate to form a cavity for manufacturing a product.

6. The multiple demolding mechanism according to claim 5, characterized in that, The female mold is fixedly installed, the male mold is connected to a lifting drive mechanism, and the male mold is provided with an ejection mechanism for ejecting the molded product out of the cavity.

7. A method for multiple demolding processes, characterized in that, The multiple demolding mechanism described in claim 5 or 6 includes: The floating plate mechanism separates by a first preset distance and drags the shovel base upward, while the shovel base drives the slider seat to move horizontally away from the male mold. The slider seat drives the sliding top pressing component of the top pressing module to slide out of the second preset distance along the preset angle and disengage from the product buckle; The male mold and the female mold are separated so that the female mold and the fixed top pressing component of the top pressing mold are disengaged from the product undercut; The ejection mechanism lifts and ejects the product from the mold.

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