Internal parting mold and its demoulding mechanism

Abstract

The present invention provides an internal parting mold and a demoulding mechanism thereof. The demoulding mechanism of the internal parting mold comprises a straight top block, an inclined top block and a driving assembly. A first inclined surface contact can be formed between the straight top block and the inclined top block, and a slidable connection with a second inclined surface is formed between the straight top block and the driving assembly; when the driving assembly drives the straight top block and the inclined top block to move, the straight top block moves from high to low relative to the second inclined surface and is separated from the product, and the inclined top block moves away from the inner side surface and the undercut surface of the product and is separated from the product. The internal parting mold comprises a demoulding mechanism of the internal parting mold. The inclined top and the straight top of the internal parting mold and its demoulding mechanism of the present invention are separated from the wall surface of the product after one drive to achieve the demoulding effect. The demoulding action is simple and efficient, and the synchronization of the separation action of the straight top and the inclined top with the product is high, and a good demoulding effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of demoulding of internal parting molds, in particular to an internal parting mold and a demoulding mechanism thereof. Background Art

[0002] Plastic bumpers offer strength, rigidity, and decorative qualities. They act as a buffer in the event of a collision, protecting the front and rear of the vehicle. They also blend seamlessly with the vehicle's body, creating a decorative element that makes them a crucial component in enhancing a car's appearance.

[0003] Bumpers typically utilize an external parting method, but the parting point between the front and rear molds is typically located at the boundary of the exterior surface. This can easily leave flash or parting marks in the bumper mold, affecting the overall appearance and requiring secondary polishing and painting processes, increasing costs and time. To achieve one-step molding through injection molding and ensure a flawless exterior, an internal parting mold structure is employed. This shifts the parting point outward, away from the visible exterior surface, or inward, toward non-exterior surfaces. This maintains the integrity of the exterior surface within the mold, resulting in superior exterior quality compared to external parting.

[0004] The cavity of an externally parted bumper mold encloses part of the external fillet, while the remaining fillet is formed on the core side. This creates a parting line at the fillet boundary. An internally parted bumper mold encloses the entire fillet, eliminating the parting line. Because this eliminates the parting line at the fillet, the appearance of products produced with an internally parted bumper mold is superior to that of products produced with an externally parted bumper mold.

[0005] The existing demolding structure of an internally parted bumper mold uses two ejector plates to eject the product in two steps. A straight ejector and an inclined ejector are located on each ejector plate. Specifically, a first-stage ejector cylinder first lifts the two ejector plates and all the ejectors, inclined ejectors, and straight ejectors on them. Then, a second-stage ejector cylinder pulls the two ejector plates apart, separating the two and thus separating the inclined ejector from the parting surface on the bumper. This demolding structure is complex and inefficient. Furthermore, because demolding is performed in stages, the straight ejector and inclined ejector are out of sync, making it prone to jamming or product damage during demolding. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the present invention provides an internal parting mold and a demoulding mechanism thereof to solve at least one technical problem existing in the demoulding structure of the mold in the prior art.

[0007] To this end, the present invention provides a technical solution as follows: a demoulding mechanism of an internal parting mold, comprising a straight ejector block, an inclined ejector block, and a drive assembly, wherein the top surface of the straight ejector block is used to form a portion of the inner top surface of the product, the side surface of the inclined ejector block is used to form a portion of the inner side surface of the product, and a portion of the bottom surface of the inclined ejector block is used to form a portion of the undercut surface of the product;

[0008] A first inclined surface may be formed between the straight ejector block and the inclined ejector block, the first inclined surface being inclined upward from the inner side wall of the product toward the inclined ejector, and the straight ejector block and the driving assembly forming a slidable connection with a second inclined surface.

[0009] When the driving assembly drives the straight ejector block and the inclined ejector block to move, the straight ejector block moves from high to low relative to the second inclined surface and is separated from the product, and the inclined ejector block moves away from the inner side surface and the undercut surface of the product and is separated from the product, and the separation amount of the inclined ejector block from the first inclined surface due to the translation is not less than the downward movement amount of the straight ejector block in the downward movement direction.

[0010] As a further optional solution for the demoulding mechanism of the inner parting mold, the driving assembly includes a connecting plate and a linear driving member, the straight ejector block and the inclined ejector block are connected to the connecting plate, and the linear driving member can drive the connecting plate to perform reciprocating linear motion.

[0011] As a further optional solution of the demoulding mechanism of the inner parting mold, the connecting plate is an ejector plate of the inner parting mold.

[0012] As a further optional solution for the demoulding mechanism of the internal parting mold, the demoulding mechanism also includes a straight top slide, the straight top block is connected to the connecting plate through the straight top slide, the straight top slide is slidably connected to the connecting plate, the straight top slide can slide along the plate surface of the connecting plate, and the straight top block and the straight top slide form a slidable connection with a second inclined surface.

[0013] As a further optional solution for the demoulding mechanism of the internal parting mold, the driving assembly also includes a straight top auxiliary connecting rod, which is connected to the straight top slide. When the linear driving member drives the connecting plate to move upward, the straight top auxiliary connecting rod links the straight top slide to slide relative to the connecting plate, and the straight top slides from high to low on the straight top slide.

[0014] As a further optional solution of the demoulding mechanism of the inner parting mold, the inclined ejector block is slidably connected to the connecting plate, and the inclined ejector block can slide along the plate surface of the connecting plate.

[0015] As a further optional solution of the demoulding mechanism of the inner parting mold, the demoulding mechanism further includes a tilting slider, and the tilting block is slidably connected to the connecting plate through the tilting slider;

[0016] The driving assembly also includes a tilting auxiliary connecting rod, which is connected to the tilting slider. When the linear driving member drives the connecting plate to move upward, the tilting auxiliary connecting rod links the tilting top to slide along the connecting plate through the tilting slider.

[0017] As a further optional solution of the demoulding mechanism of the inner parting mold, the demoulding mechanism further includes a straight top connecting rod and an inclined top connecting rod, the connecting plate drives the straight top block to move through the straight top connecting rod, and the connecting plate drives the inclined top block to move through the inclined top connecting rod;

[0018] The inner parting mold also includes a rear template, which is provided with a first slide groove and a second slide groove. The first slide groove is used to guide the movement of the straight top connecting rod therein, and the second slide groove is used to guide the movement of the inclined top connecting rod therein.

[0019] As a further optional solution for the demoulding mechanism of the inner parting mold, the linear drive component includes a driving part and an executing part, the driving part can drive the executing part to perform reciprocating linear motion, the driving part is connected to the rear template, and the executing part is connected to the connecting plate.

[0020] As a further extension of the above technical solution, the present invention also provides an internal parting mold, including any of the above-mentioned demoulding mechanisms of the internal parting mold.

[0021] The internal parting mold and demoulding mechanism of the present invention have the following beneficial effects:

[0022] By configuring the straight top and the inclined top to cooperate with the first inclined surface, and configuring the straight top and the drive assembly to cooperate with the second inclined surface, the straight top and the inclined top can be driven by a single set of drive assemblies. The configuration of the first inclined surface allows the inclined top to produce a certain gap when it moves in a direction away from the side wall of the product, thereby preventing the straight top from forming an upward stroke and preventing the downward movement of the straight top block. At the same time, the configuration of the second inclined surface allows the straight top to move downward and separate from the product. After a single drive, the inclined top and the straight top are separated from the wall of the product, achieving the demoulding effect. The demoulding action is simple and efficient, and the synchronization between the straight top and the inclined top and the separation action of the product is high, resulting in a good demoulding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 The figure shows the overall structure of the inner parting mold provided by Example 1 of the present invention;

[0025] Figure 2 1 shows a schematic diagram of a first cross-sectional structure of an inner parting mold provided in Example 1 of the present invention;

[0026] Figure 3 Schematic diagram of the second cross-sectional structure of the inner parting mold provided in Example 1 of the present invention is shown;

[0027] Figure 4 Shown Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0028] Figure 5 Shown Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0029] Description of main component symbols:

[0030] 10-straight top block; 11-straight top connecting rod; 20-inclined top block; 21-inclined top connecting rod; 30-driving assembly; 31-connecting plate; 32-linear driving member; 33-inclined top auxiliary connecting rod; 34-straight top auxiliary connecting rod; 40-inclined top slider; 50-straight top slide; 60-straight top slider; 70-rear template; 71-first slide groove; 72-second slide groove. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0034] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] Example 1

[0037] This embodiment provides an internally parted mold for injection molding internally parted products, such as bumpers. The internally parted mold includes a demolding mechanism, which is used to eject the product molded in the mold, effectively releasing the product. This mechanism provides simple and efficient demolding and provides a certain degree of protection for the molded product. Hereinafter, the demolding mechanism of the internally parted mold is referred to as the demolding mechanism.

[0038] Please also refer to Figure 1 and Figure 2 The demoulding mechanism includes a straight ejector block 10, an inclined ejector block 20 and a drive assembly 30. The top surface of the straight ejector block 10 is used to form part of the inner top surface of the product, the side surface of the inclined ejector block 20 is used to form part of the inner side surface of the product, and part of the bottom surface of the inclined ejector block 20 is used to form part of the undercut surface of the product. After the product is injection molded, the straight ejector block 10 is attached to the inner top wall of the product, and the inclined ejector block 20 is attached to the inner side wall and the undercut inner wall of the product. On the one hand, the straight ejector block 10 and the inclined ejector block 20 serve as the molding core / mold core of the injection molded product, which can form part of the molding surface of the product. On the other hand, the straight ejector block 10 and the inclined ejector block 20 also serve as the executive components of the demoulding structure, which can effectively separate from the product when ejecting the product to achieve demoulding.

[0039] A first inclined surface can form contact between the straight ejector block 10 and the inclined ejector block 20, with the first inclined surface sloping upward from the inner sidewall of the product toward the inclined top. The straight ejector block 10 forms a slidable connection with the drive assembly 30, with a second inclined surface cooperating therewith. When the drive assembly 30 drives the straight ejector block 10 and the inclined ejector block 20, the straight ejector block 10 moves from a high position to a low position relative to the second inclined surface, separating from the product. The inclined ejector block 20 translates away from the inner wall of the product, separating from the product. The amount of separation between the inclined ejector block 20 and the straight ejector block 10 due to translation on the first inclined surface is not less than the amount of downward movement of the straight ejector block 10.

[0040] The straight ejector block 10 engages the inner top wall of the product. Because it has a certain thickness and its bottom contacts the top of the inclined ejector block 20, the straight ejector block 10 actually mates with both the inner top wall and the inner sidewall, forming the corners of the product's inner top surface. The main contact surface between the straight ejector block 10 and the product and the contact surface between the inclined ejector block 20 and the product are in different directions. Therefore, when driving the two to separate from the product, they need to be driven in different directions.

[0041] During injection molding, the straight ejector block 10 and the inclined ejector block 20 need to be fitted together to form a continuous injection molding surface of the product. Therefore, at the beginning of demoulding, the straight ejector block 10 and the inclined ejector block 20 are in contact with each other. By setting a second inclined sliding connection structure between the drive assembly 30 and the straight ejector block 10, the straight ejector block 10 needs to be pulled down relative to the drive assembly 30 during demoulding so that the inclined ejector block 20 is separated from the product; a first inclined matching structure is set between the straight ejector block 10 and the inclined ejector block 20. This first inclined surface allows the drive assembly 30 to drive the inclined ejector block 20 to move, creating a certain gap between the inclined ejector block 20 and the straight ejector block 10, providing a certain margin for the downward movement of the straight ejector block 10, and avoiding obstruction to the downward movement of the straight ejector block 10.

[0042] Because the product's undercut structure is located below the inclined ejector block 20, the inclined ejector block 20 must move horizontally or at an angle upward from the horizontal. Therefore, the first inclined surface is designed to tilt from the product's sidewall toward the straight ejector block 10 to meet the required translational direction of the inclined ejector block 20. Furthermore, the translational angle of the inclined ejector block 20 must not exceed the inclination angle of the first inclined surface. This ensures that when the inclined ejector block 20 is separated from the product, a certain gap can be created between it and the straight ejector block 10 to allow the straight ejector block 10 to descend.

[0043] It can be understood that when the inclined lift block 20 is translated, the inclination direction of the first inclined surface on it remains unchanged, that is, the surfaces opposite to the inclined lift block 20 and the straight lift block 10 always remain parallel. The angle of the translation of the inclined lift block 20 and the angle between the first inclined surface are related to the spacing formed between the inclined lift block 20 and the straight lift block 10 when the inclined lift block 20 is translated. The greater the difference between the translation angle of the inclined lift block 20 and the angle of the first inclined surface, the greater the gap between the inclined lift block 20 and the straight lift block 10 in the direction of the first inclined surface when the inclined lift block 20 moves a certain distance. The greater the inclination angle of the second inclined surface, the greater the downward movement of the straight lift block 10 when the driving assembly 30 drives a certain distance. The downward movement of the straight lift block 10 and the gap generated between the inclined lift block 20 and the straight lift block 10 can be controlled by the angle of the second inclined surface and the difference between the translation angle of the inclined lift block 20 and the angle of the first inclined surface. How to set the inclined surface angle and the translation angle can be calculated and designed based on the actual action formation, which will not be elaborated here.

[0044] In one embodiment, the drive assembly 30 can move from a low surface to a high surface along a second inclined surface. The second inclined surface has the same inclination direction as the first inclined surface, but the inclination angle of the second inclined surface is smaller than that of the first inclined surface. The straight ejector block 10 is slidably connected to the drive assembly 30, thereby lowering its position on the drive assembly 30 and causing a downward movement, thereby separating from the product. Simultaneously, the inclined ejector block 20 translates along the inclination angle of the second inclined surface, thereby separating from the product. The gap created between the inclined ejector block 20 and the straight ejector block 10 due to this translation allows the straight ejector block 10 to move downward. Thus, a single drive assembly 30 simultaneously drives the straight ejector block 10 and the inclined ejector block 20 to separate from the product.

[0045] The drive assembly 30 includes a connecting plate 31 and a linear drive member 32. The straight ejector block 10 and the inclined ejector block 20 are connected to the connecting plate 31. The linear drive member 32 is capable of driving the connecting plate 31 in reciprocating linear motion. The linear drive member 32 can be a linear motor, pneumatic cylinder, oil cylinder, motor rack and pinion, motor ball screw, or motor cam structure. The connecting plate 31 is used to mount the straight ejector block 10 and the inclined ejector block 20, evenly transmitting the driving force of the linear drive member 32 to the straight ejector block 10 and the inclined ejector block 20.

[0046] In this embodiment, the connecting plate 31 serves as the ejector plate for the internal parting mold, and the linear drive member 32 also serves as the ejector plate's driver. This simultaneously pushes the straight ejector block 10 and the inclined ejector block 20. This allows the ejector plate to separate the straight and inclined ejector blocks 10 and 20 from the product while simultaneously pushing the ejector pins, thereby optimizing the demolding process. Furthermore, the ejector pin's driver is integrated with the drivers of the straight and inclined ejector blocks 10 and 20, simplifying the structure of the demolding mechanism.

[0047] The inclined ejector block 20 is slidably connected to the connecting plate 31. It slides along the surface of the connecting plate 31, providing margin for translation of the inclined ejector block 20. This allows the inclined ejector block 20 to separate from the inner side of the product by moving laterally. When separating from the side of the product, the inclined ejector block 20 creates a gap with the straight ejector block 10 on the first inclined surface, providing margin for the straight ejector block 10 to move downward.

[0048] Please also refer to Figure 3 and Figure 4 The demoulding mechanism also includes a tilted lift slider 40, and the tilted lift block 20 is slidably connected to the connecting plate 31 through the tilted lift slider 40. The driving assembly 30 also includes a tilted lift auxiliary connecting rod 33, which is slidably inserted into the tilted lift slider 40. When the linear driving member 32 drives the connecting plate 31 to move upward, the tilted lift auxiliary connecting rod 33 is linked to the tilted lift slider 40 to slide along the connecting plate 31. As a result, when the connecting plate 31 moves upward, it drives the tilted lift auxiliary connecting rod 33 to move in conjunction with the tilted lift slider 40, so that the tilted lift slider 40 drives the tilted lift block 20 to move along the connecting plate 31. Since the connecting plate 31 has a certain amount of lifting on the tilted lift block 20 in the vertical direction, the lifting amount and the amount of movement of the tilted lift slider 40 along the connecting plate 31 are translated in the composite direction, and the composite movement angle is smaller than the first inclined surface angle.

[0049] The sliding fit between the connecting plate 31 and the inclined top slider 40 can be a dovetail groove fit or a T-slot fit, so that they can form a sliding fit and can slide relative to each other. Slide tables are provided on both sides of the inclined top slider 40, and the connecting plate 31 is provided with a groove that matches the slide tables.

[0050] Furthermore, the lift assist link 33 is arranged in an inclined direction and slidably inserted into the lift slider 40. The tilt angle of the lift assist link 33 corresponds to the translation angle of the lift block 20. The lift assist link 33 is fixed relative to the inner parting mold. As the lift slider 40 moves with the connecting plate 31, the lift slider 40 slides along the lift assist link 33, which acts as a guide for the lift slider 40. When the connecting plate 31 moves upward, the lift assist link 33 causes the slider to move leftward, thereby driving the lift block 20 away from the side of the product and separating from the product. When the connecting plate 31 moves downward, the lift assist link 33 causes the lift slider 40 to move rightward, thereby driving the lift block 20 toward the side of the product and resetting it in preparation for the next injection molding of the product.

[0051] The connecting plate 31 applies force to the inclined lift slider 40 through the inclined lift auxiliary connecting rod 33, and the inclined lift slider 40 drives the inclined lift block 20 to move horizontally, avoiding direct force on the inclined lift block 20, and can effectively prevent the inclined lift block 20 from being deformed due to the force and getting stuck on the connecting plate 31.

[0052] In other embodiments, the lift assisting connecting rod 33 and the lift slider 40 may be connected in other ways. For example, one end of the lift assisting connecting rod 33 may be rotatably connected to the inner parting mold, and the other end may be rotatably connected to the lift slider 40. Thus, when the connecting plate 31 is raised or lowered, the lift assisting connecting rod 33 can link the lift slider 40 to slide along the connecting plate 31.

[0053] The demolding mechanism also includes a straight ejection slide 50, through which the ejection block 10 is connected to the connecting plate 31. The straight ejection slide 50 is slidably connected to the connecting plate 31 and can slide along the surface of the connecting plate 31. The ejection block 10 and the straight ejection slide 50 form a slidable connection with a second inclined surface. By providing the straight ejection slide 50 and forming a wedge-shaped fit with the ejection block 10, upward movement of the connecting plate 31 can also cause the ejection block 10 to move downward, thereby allowing the ejector pins on the ejector pin plate to protrude relative to the top of the ejector pin 10.

[0054] Furthermore, a straight lift block 10 is provided with a straight lift slider 60 at the bottom end thereof. A second inclined sliding surface is formed between the straight lift slider 60 and the straight lift slide 50. As the straight lift slide 50 moves along the connecting plate 31, the straight lift block 10 slides along the inclined surface of the straight lift slide 50, thereby achieving the raising and lowering of the straight lift block 10. The straight lift slider 60 and the straight lift slide 50 are slidably connected, and a dovetail groove or T-slot fit can be formed therebetween to form a slidable connection.

[0055] like Figure 5As shown, the drive assembly 30 further includes a straight-lift auxiliary link 34, which is connected to the straight-lift slide 50. When the linear drive member 32 drives the connecting plate 31 upward, the straight-lift auxiliary link 34 causes the straight-lift slide 50 to slide relative to the connecting plate 31, and the straight-lift slides from a high position to a low position on the straight-lift slide 50. The straight-lift auxiliary link 34 acts to link the straight-lift slide 50 to move along the connecting plate 31. When the connecting plate 31 is pushed upward, the straight-lift auxiliary link 34 causes the straight-lift slide 50 to slide from the high side to the low side of the straight-lift slide 50, thereby causing the straight-lift block 10 to descend and separate from the product.

[0056] Furthermore, the straight-lift auxiliary link 34 is arranged in an inclined direction and slidably inserted into the straight-lift slide 50. The straight-lift auxiliary link 34 is fixed relative to the inner parting mold. As the straight-lift slide 50 moves with the connecting plate 31, the straight-lift slide 50 slides along the straight-lift auxiliary link 34, which serves as a movement guide for the straight-lift slide 50. When the connecting plate 31 is pushed up, the straight-lift auxiliary link 34 drives the straight-lift slide 60 to move leftward (from the upper surface to the lower surface), thereby driving the straight-lift block 10 downward and separating from the product. When the connecting plate 31 moves downward, the straight-lift auxiliary link 34 drives the straight-lift slide 60 to move rightward (from the upper surface to the lower surface), thereby driving the straight-lift block 10 upward and resetting in preparation for the next injection molding of the product.

[0057] In other embodiments, the straight lift auxiliary link 34 and the straight lift slide 50 may be connected in other ways. For example, one end of the straight lift auxiliary link 34 may be rotatably connected to the inner parting mold, and the other end may be rotatably connected to the straight lift slide 50. Thus, when the connecting plate 31 is raised or lowered, the straight lift auxiliary link 34 can link the straight lift slide 50 to slide along the connecting plate 31.

[0058] The demolding mechanism also includes a straight lift link 11 and an inclined lift link 21. The connecting plate 31 drives the straight lift block 10 via the straight lift link 11, and the connecting plate 31 drives the inclined lift block 20 via the inclined lift link 21. In this embodiment, one end of the straight lift link 11 is connected to the straight lift block 10, and the other end is connected to the straight lift slider 60. Through the straight lift slider 60 and the straight lift slide 50, it forms a sliding connection with the connecting plate 31 along the second inclined surface. The inclined lift link 21 has one end connected to the inclined lift block 20, and the other end is connected to the inclined lift slider 40. Through the inclined lift slider 40, it forms a sliding connection with the connecting plate 31 along the plate surface of the connecting plate 31.

[0059] The internal parting mold also includes a rear template 70, which is provided with a first chute 71 and a second chute 72. The first chute 71 guides the movement of the straight-lift link 11, while the second chute 72 guides the movement of the inclined-lift link 21. During the demolding process, the position of the rear template 70 remains unchanged. The first chute 71 and the second chute 72 guide the movement of the straight-lift link 11 and the inclined-lift link 21, respectively. This further stabilizes the movement of the straight-lift block 10 and the inclined-lift block 20, ensuring effective demolding. The straight-lift auxiliary link 34 and the inclined-lift auxiliary link 33 are fixed relative to the rear template 70, thereby guiding the straight-lift slide 50 and the inclined-lift slider 40, respectively.

[0060] The linear drive member 32 includes a driving portion and an actuator. The driving portion drives the actuator to perform reciprocating linear motion. The driving portion is connected to the rear template 70, and the actuator is connected to the connecting plate 31. The rear template 70 is positioned above the connecting plate 31, so the linear drive member 32 drives the connecting plate 31 upward by pulling upward and drives the connecting plate 31 downward by pushing downward.

[0061] Furthermore, the linear drive element 32 can be a hydraulic cylinder, which offers the advantages of being compact, powerful, and quiet. The cylinder body serves as the driving element, while the piston rod serves as the actuator. There can be multiple linear drive elements 32, such as four, connected to the four corners of the connecting plate 31, thereby providing a stable and balanced driving force for the connecting plate 31.

[0062] As mentioned above, when the linear driving member 32 drives the connecting plate 31 to move upward, the movements of the straight top block 10 and the inclined top block 20 are synchronized, the straight top block 10 moves downward, and the inclined top block 20 moves horizontally in the upward direction; when the linear driving member 32 drives the connecting plate 31 to move downward, the movements of the straight top block 10 and the inclined top block 20 are synchronized, the straight top block 10 moves upward, and the inclined top block 20 moves horizontally in the downward direction.

[0063] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0064] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. The demoulding mechanism of the inner parting mold is characterized by: It comprises a straight ejector block, an inclined ejector block and a driving assembly, wherein the top surface of the straight ejector block is used to form part of the inner top surface of the product, the side surface of the inclined ejector block is used to form part of the inner side surface of the product, and part of the bottom surface of the inclined ejector block is used to form part of the undercut surface of the product; A first inclined surface may be formed between the straight ejector block and the inclined ejector block, the first inclined surface is inclined upward from the inner side wall of the product toward the straight ejector block, and the straight ejector block and the driving assembly form a slidable connection with a second inclined surface; When the driving assembly drives the straight ejector block and the inclined ejector block to move, the straight ejector block moves from high to low relative to the second inclined surface and is separated from the product, and the inclined ejector block moves away from the inner side surface and the undercut surface of the product and is separated from the product, and the separation amount of the inclined ejector block from the straight ejector block on the first inclined surface due to the translation is not less than the downward movement amount of the straight ejector block in the downward movement direction of the straight ejector block. The driving assembly includes a connecting plate and a linear driving member, the straight ejector block and the inclined ejector block are connected to the connecting plate, and the linear driving member can drive the connecting plate to perform reciprocating linear motion; the driving assembly also includes a straight ejector auxiliary connecting rod and an inclined ejector auxiliary connecting rod; The connecting plate is an ejector plate of the inner parting mold.

2. The demoulding mechanism of the inner parting mold according to claim 1, characterized in that: The demoulding mechanism also includes a straight top slide, the straight top block is connected to the connecting plate through the straight top slide, the straight top slide is slidably connected to the connecting plate, the straight top slide can slide along the plate surface of the connecting plate, and the straight top block and the straight top slide form a slidable connection with a second inclined surface.

3. The demoulding mechanism of the inner parting mold according to claim 2, characterized in that: The straight top auxiliary connecting rod is connected to the straight top sliding seat. When the linear driving member drives the connecting plate to move upward, the straight top auxiliary connecting rod links the straight top sliding seat to slide relative to the connecting plate, and the straight top slides from high to low on the straight top sliding seat.

4. The demoulding mechanism of the inner parting mold according to claim 1, characterized in that: The inclined lift block is slidably connected to the connecting plate, and the inclined lift block can slide along the plate surface of the connecting plate.

5. The demoulding mechanism of the inner parting mold according to claim 4, characterized in that: The demoulding mechanism further comprises an inclined top slider, and the inclined top block is slidably connected with the connecting plate through the inclined top slider; The auxiliary connecting rod is connected to the inclined lifting block. When the linear driving member drives the connecting plate to move upward, the auxiliary connecting rod links the inclined lifting block to slide along the connecting plate through the inclined lifting block.

6. The demoulding mechanism of the inner parting mold according to claim 1, characterized in that: The demoulding mechanism further comprises a straight top connecting rod and an inclined top connecting rod, wherein the connecting plate drives the straight top block to move through the straight top connecting rod, and the connecting plate drives the inclined top block to move through the inclined top connecting rod; The inner parting mold also includes a rear template, which is provided with a first slide groove and a second slide groove. The first slide groove is used to guide the movement of the straight top connecting rod therein, and the second slide groove is used to guide the movement of the inclined top connecting rod therein.

7. The demoulding mechanism of the inner parting mold according to claim 6, characterized in that: The linear drive member includes a driving part and an executing part. The driving part can drive the executing part to perform reciprocating linear motion. The driving part is connected to the rear template, and the executing part is connected to the connecting plate.

8. The inner parting mold is characterized by: A demoulding mechanism comprising an inner parting mold as described in any one of claims 1 to 7.

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