Anti-stick core-pulling mold
By setting a movable abutment in the mold, the problem of deformation or damage caused by the product sticking to the core-pulling part is solved, and the smooth separation of the product from the core-pulling part and high-quality molding are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BASEUS TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-30
AI Technical Summary
During the molding process, the product is prone to sticking to the core-pulling part, which can lead to deformation or damage and affect product quality.
A non-stick core-pulling mold was designed. By setting a movable abutment on the core-pulling component, the abutment abuts against the product during the movement of the core-pulling component to prevent sticking. When the core-pulling component reaches the separation position, the abutment is released to achieve separation of the product from the core-pulling component.
It effectively prevents the product from deforming or being damaged during the movement of the core-pulling component, ensuring product quality, while not affecting the normal demolding of the product.
Smart Images
Figure CN224426285U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the general field of molding technology for plastic materials, and more particularly to an anti-sticking core-pulling mold. Background Technology
[0002] In industrial production, molds are generally used to shape products. Molds provide molding cavities with specific shapes, and by injecting molten material into the molding cavity, products with specific three-dimensional shapes can be obtained. Molds generally consist of a fixed mold and a moving mold, which can be separated or combined, and when combined, they can form a molding cavity.
[0003] For products that require lateral openings or grooves, a core-pulling component is needed to meet the requirements. Before or during mold opening, the core-pulling component is pulled out at an angle to achieve demolding of the product. Utility Model Content
[0004] This application provides an anti-sticking core-pulling mold. By setting an abutment that can be ejected in the opposite direction to the core-pulling part, it improves the situation where the product is deformed or even damaged due to the movement of the core-pulling part because it sticks to the core-pulling part. This promotes the separation between the core-pulling part and the product and helps to improve the quality of the product.
[0005] This application provides an anti-stick core-pulling mold, comprising: a fixed mold; a movable mold, the movable mold and the fixed mold being engaged to form a molding cavity for accommodating an article; a movable core-pulling member, the core-pulling member being movable between a working position in contact with the article and a detachment position separated from the article; and an anti-stick component, including an abutment member, the abutment member being movably disposed on the core-pulling member; wherein, during the movement of the core-pulling member from the working position to the detachment position, the core-pulling member moves away from the article, and the abutment member is subjected to an external force and abuts against the article through movement; when the core-pulling member reaches the detachment position, the external force acting on the abutment member is released, thereby releasing the abutment member from the article.
[0006] In the technical solution of this application embodiment, since the abutment is movably disposed on the core-pulling member, and during the movement of the core-pulling member from the working position to the release position, the abutment moves relative to the core-pulling member while maintaining contact with the product, the abutment can constrain the product, causing the product to release from adhesion with the core-pulling member and separate from each other, preventing the product from deforming or even being damaged while moving with the core-pulling member, thus helping to improve the quality of the product. Furthermore, since the abutment can release from contact with the product when the core-pulling member reaches the release position, the abutment can delay its release from the product relative to the core-pulling member, which can prevent product deformation without affecting the normal demolding of the product.
[0007] In some embodiments, during the movement of the core-pulling member from the working position to the disengagement position, the core-pulling member moves along a first direction to move away from the article in a second direction, and the abutting member moves relative to the core-pulling member in the second direction toward the article under the action of the external force to abut against the article; wherein the second direction is oblique to the first direction.
[0008] Therefore, during the oblique core-pulling process, the contacting part does not move away from the product with the core-pulling part, but remains in contact with the product. This helps to separate the product from the core-pulling part, avoids deformation or even damage to the product due to movement with the core-pulling part, and helps to improve the quality of the product.
[0009] In some embodiments, the anti-stick assembly further includes a mating member located on the side of the abutment member facing away from the article along the second direction; during the movement of the core-pulling member from the working position to the disengaging position, the abutment member abuts against the mating member so that the mating member provides the external force to the abutment member.
[0010] Therefore, during the movement of the core-pulling component from the working position to the detachment position, the mating component abuts against the abutting component, preventing the abutting component from moving away from the product along with the core-pulling component. Instead, the abutting component maintains its abutting state against the product, thereby providing a thrust to the product in the opposite direction to the direction in which the core-pulling component pulls the product. This prevents the product from deforming or even being damaged while moving with the core-pulling component, thus achieving the separation of the product from the core-pulling component and helping to improve the quality of the product.
[0011] In some embodiments, the anti-sticking component further includes a reset member that cooperates with the abutment member. During the movement of the core-pulling member from the working position to the disengagement position, the reset member is compressed under the force of the abutment member. When the core-pulling member reaches the disengagement position, the abutment member is reset under the elastic force of the reset member.
[0012] Therefore, during the movement of the core-pulling component from the working position to the release position, the reset component can store elastic force; when the core-pulling component reaches the release position, the reset component can release the elastic force to move the abutting component away from the product, thereby avoiding affecting the demolding of the product.
[0013] In some embodiments, the core-pulling member has a through hole and a first end face located around the through hole. The abutting member includes a first abutting portion that abuts against the mating member and a second abutting portion that abuts against the article. The first abutting portion has a second end face on the side opposite to the mating member along the second direction. The second abutting portion protrudes from the second end face and passes through the through hole. The resetting member is sleeved on the second abutting portion and located between the first end face and the second end face.
[0014] Therefore, during the movement of the core-pulling component from the working position to the release position, the first end face approaches the second end face and compresses the reset component, causing the reset component to store elastic force; when the core-pulling component reaches the release position, the reset component releases the elastic force and pushes the abutment component away from the product, thus preventing the abutment component from affecting the demolding of the product.
[0015] In some embodiments, the core-pulling member has a receiving groove communicating with the through hole, and one of a limiting groove and a limiting protrusion is provided on the side wall of the receiving groove. The other of the limiting groove and the limiting protrusion is provided on the first abutting portion. The limiting protrusion extends into the limiting groove to limit the range of movement of the abutting member relative to the core-pulling block.
[0016] Therefore, the limiting protrusion can only move between the walls of the limiting groove. When the core-pulling part moves from the working position, the cooperation between the limiting protrusion and the limiting groove prevents the abutment from being inserted into the molding cavity and affecting the shape of the product. When the core-pulling part reaches the disengagement position, the reset part releases its elastic force and pushes the abutment away from the product. The cooperation between the limiting protrusion and the limiting groove can prevent the abutment from coming out of the through hole, which helps to realize the repeated operation of the mold.
[0017] In some embodiments, the mating member has an abutment surface that abuts against the abutting member; the abutting member makes point-to-surface contact with the abutment surface; and / or, the mating member has a groove and a guide surface located between the groove and the abutment surface, the guide surface being inclined relative to the abutment surface in a direction away from the core-pulling member, and when the core-pulling member reaches the disengaged position, one end of the abutment member near the mating member is guided into the groove by the guide surface.
[0018] Thus, the abutting part moves along the contour of the mating part, and the guide surface enables the abutting part to switch smoothly between the groove and the abutting surface, which helps to realize the reset of the mold and repeated operation.
[0019] In some embodiments, the core-pulling component includes a core-pulling block and a slanted pin connected to the core-pulling block. The slanted pin is slidably disposed on the fixed mold and slides along the first direction. When the core-pulling component is in the working position, the core-pulling block contacts the product.
[0020] Thus, by moving the inclined pin, the core-pulling block is driven in and out of the molding cavity, realizing the lateral hole or groove of the product without affecting the demolding of the product.
[0021] In some embodiments, the number of abutments is at least two, and the abutments are spaced apart from each other.
[0022] Therefore, the abutment can support at least two positions of the product at the same time, which helps the product and the core-pulling part to separate more completely.
[0023] In some embodiments, the core-pulling component includes a core-pulling block having a parting surface and a mating surface facing the article when the core-pulling component is in the working position, the parting surface protruding from the mating surface, the mating surface having a through hole, and the abutment member passing through the through hole.
[0024] Therefore, the parting surface is used to form holes or grooves on the side of the product. When the core-pulling part moves, the abutting part on the mating surface can provide a thrust in the opposite direction of the core-pulling part's movement, which promotes the separation of the product from the core-pulling part without adhesion, thus helping to improve the product's production quality.
[0025] In some embodiments, the number of abutting members is at least two, and the through holes correspond one-to-one with the abutting members, with each through hole arranged along the outer periphery of the parting surface.
[0026] Therefore, the abutment is placed around the parting surface and near the position where the product is likely to come into contact and stick, which helps to improve the separation effect between the product and the core-pulling part.
[0027] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0029] Figure 1 A perspective view of an anti-stick core-pulling mold provided in an embodiment of this application;
[0030] Figure 2 A top view of an anti-stick core-pulling mold provided in an embodiment of this application;
[0031] Figure 3 for Figure 2 A cross-sectional view along the AA direction;
[0032] Figure 4 for Figure 3 A magnified view of part B in the middle section;
[0033] Figure 5 A portion of an exploded view of an anti-stick core-pulling mold provided in one embodiment of this application;
[0034] Figure 6A schematic diagram of a core-pulling member with an abutment provided for an embodiment of this application;
[0035] Figure 7 This is a perspective view of a mating component provided in an embodiment of this application.
[0036] Explanation of reference numerals in the attached figures
[0037] 10. Fixed mold; 20. Moving mold; 30. Core-pulling component; 31. Through hole; 32. First end face; 33. Receiving groove; 34. Limiting groove; 35. Limiting protrusion; 36. Core-pulling block; 37. Angled pin; 40. Anti-stick component; 41. Abutting component; 411. First abutting part; 4111. Second end face; 412. Second abutting part; 42. Mating component; 422. Abutting surface; 423. Groove; 424. Guide surface; 43. Reset component. Detailed Implementation
[0038] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0040] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0042] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.
[0043] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0044] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0045] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.
[0046] The following is a detailed description of this application.
[0047] In industrial production, molds are generally used to shape products. Molds provide molding cavities with specific shapes, and by injecting molten material into the molding cavity, products with specific three-dimensional shapes can be obtained. Molds generally consist of a fixed mold and a moving mold, which can be separated or combined, and when combined, they can form a molding cavity.
[0048] For products that require lateral openings or grooves, a core-pulling component is needed to meet the requirements. Before or during mold opening, the core-pulling component is pulled out at an angle to achieve demolding of the product.
[0049] However, core-pulling components generally have many encapsulation areas. When the core-pulling component is separated from the product, the product may be pulled along with the core-pulling component, resulting in deformation or even damage.
[0050] To solve the above-mentioned technical problems, this application provides an anti-sticking core-pulling mold. By setting an abutment that can be ejected in the opposite direction to the core-pulling part, the situation of deformation or even damage caused by the product sticking to the core-pulling part and moving with the core-pulling part is improved, which promotes the separation between the core-pulling part and the product and helps to improve the quality of the product.
[0051] Based on this design concept, this application provides an anti-stick core-pulling mold, which includes: a fixed mold; a movable mold, the movable mold and the fixed mold being engaged to form a molding cavity for accommodating a product; a movable core-pulling component, the core-pulling component being movable between a working position in contact with the product and a detachment position separated from the product; and an anti-stick component, including an abutment member, the abutment member being movably disposed on the core-pulling component; wherein, during the movement of the core-pulling component from the working position to the detachment position, the core-pulling component moves away from the product, and the abutment member is subjected to an external force and abuts against the product through movement; when the core-pulling component reaches the detachment position, the external force acting on the abutment member is released, thereby releasing the abutment member from the product.
[0052] Because the abutment is movably disposed within the core-pulling component, and maintains contact with the product while moving relative to the core-pulling component from the working position to the release position, the abutment can restrain the product, causing it to separate from the core-pulling component and preventing deformation or even damage to the product due to movement with the core-pulling component, thus improving product quality. Furthermore, since the abutment can release contact with the product when the core-pulling component reaches the release position, it can delay its release from the product relative to the core-pulling component, preventing product deformation without affecting normal demolding.
[0053] The following explanation is based on the accompanying drawings.
[0054] Figure 1 A perspective view of an anti-stick core-pulling mold provided in an embodiment of this application; Figure 2 A top view of an anti-stick core-pulling mold provided in an embodiment of this application; Figure 3 for Figure 2 A cross-sectional view along the AA direction; Figure 4 for Figure 3 A magnified view of part B in the middle section; Figure 5 A portion of an exploded view of an anti-stick core-pulling mold provided in one embodiment of this application; Figure 6 A schematic diagram of a core-pulling member with an abutment provided for an embodiment of this application; Figure 7 This is a perspective view of a mating component provided in an embodiment of this application.
[0055] This application provides an anti-stick core-pulling mold, such as Figures 1 to 3As shown, it includes: a fixed mold 10; a movable mold 20, which mates with the fixed mold 10 to form a molding cavity for accommodating the product; a movable core-pulling member 30, which can move between a working position in contact with the product and a detachment position separated from the product; and an anti-stick component 40, including an abutment member 41, which is movably disposed on the core-pulling member 30. During the movement of the core-pulling member 30 from the working position to the detachment position, the core-pulling member 30 moves away from the product, and the abutment member 41 is subjected to an external force and abuts against the product through movement. When the core-pulling member 30 reaches the detachment position, the external force acting on the abutment member 41 is released, thereby releasing the abutment member 41 from the product.
[0056] The anti-stick core-pulling mold includes a fixed mold 10, a movable mold 20, a core-pulling component 30, and an anti-stick assembly 40. The movable mold 20 can move closer to or further away from the fixed mold 10. When the movable mold 20 approaches and abuts against the fixed mold 10, it can engage with the fixed mold 10 to form a molding cavity. The core-pulling component 30 can move relative to the molding cavity. When the core-pulling component 30 moves away from the molding cavity, the anti-stick assembly 40 can abut against the product, causing the product to separate from the core-pulling component 30.
[0057] The fixed mold 10 generally remains stationary, while the moving mold 20 moves relative to the fixed mold 10. The moving mold 20 can engage with the fixed mold 10 to form a molding cavity. The molding cavity can hold the molten material and allow the molten material to cool and be molded into a product with the desired shape.
[0058] The core-pulling component 30 can enter and exit the molding cavity to form side holes or grooves in the molded product. The movement direction of the core-pulling component 30 can be perpendicular or intersecting the movement direction of the moving mold 20. A drive mechanism can be provided to connect to the core-pulling component 30 to achieve automatic control of the movement of the core-pulling component 30. Furthermore, the core-pulling component 30 can be connected to the moving mold 20 so that the moving mold 20 moves synchronously with the core-pulling component 30.
[0059] The core-pulling component 30 can move between a working position and a release position. When the core-pulling component 30 is in the working position, it is inserted into the molding cavity, and molten material surrounds the portion of the core-pulling component 30 located within the molding cavity. During the movement of the core-pulling component 30 from the working position to the release position, it moves away from the product.
[0060] The anti-stick component 40 includes an abutment 41. The abutment 41 is movably disposed on the core-pulling component 30. When the core-pulling component 30 is in the working position, the abutment 41 is flush with the surface of the core-pulling component 30 that contacts the product. During the movement of the core-pulling component 30 from the working position to the disengaged position, the core-pulling component 30 moves away from the product, and the abutment 41 moves relative to the core-pulling component 30 under the action of an external force, while maintaining its position in contact with the product. When the core-pulling component 30 is in the disengaged position, the external force is released, and the abutment 41 is released from contact with the product.
[0061] In the technical solution of this application embodiment, since the abutment 41 is movably disposed on the core-pulling member 30, and during the movement of the core-pulling member 30 from the working position to the release position, the abutment 41 moves relative to the core-pulling member 30 while maintaining contact with the product, the abutment 41 can constrain the product, causing the product to release from adhesion with the core-pulling member 30 and separate from each other, preventing the product from deforming or even being damaged while moving with the core-pulling member 30, thus helping to improve the quality of the product. Furthermore, since the abutment 41 can release contact with the product when the core-pulling member 30 reaches the release position, the abutment 41 can delay its release from the product relative to the core-pulling member 30, which can prevent product deformation without affecting the normal demolding of the product.
[0062] In some embodiments, such as Figures 2 to 4 As shown, during the movement of the core-pulling component 30 from the working position to the detached position, the core-pulling component 30 moves along the first direction to move away from the product in the second direction, and the abutting component 41 moves relative to the core-pulling component 30 in the second direction towards the product under the action of external force to abut against the product; wherein, the second direction is oblique to the first direction.
[0063] Core pulling can be performed using an oblique core pulling method. The core pulling member 30 moves along a first direction, thereby moving between a working position and a disengaged position. While the core pulling member 30 moves along the first direction, it extends into or leaves the molding cavity in a second direction. The abutment member 41 is subjected to an external force parallel to the second direction, and under the action of this external force, it can move relative to the core pulling member 30.
[0064] During the movement of the core-pulling component 30 from the working position to the disengagement position, the core-pulling component 30 moves away from the fixed mold 10 in the direction of movement of the moving mold 20, and moves away from the product in the second direction. The abutting component 41 moves away from the fixed mold 10 along with the core-pulling component 30 in the direction of movement of the moving mold 20. Under the action of external force, the abutting component 41 remains stationary in the second direction, maintaining its position abutting against the product. When the core-pulling component 30 reaches the disengagement position, the external force is released, causing the abutting component 41 to release from contact with the product.
[0065] The first direction is oblique to the direction of motion of the moving mold 20, and the second direction is perpendicular to the direction of motion of the moving mold 20.
[0066] Therefore, during the oblique core-pulling process of the core-pulling component 30, the abutting component 41 does not move away from the product with the core-pulling component 30, but remains in contact with the product. This helps to separate the product from the core-pulling component 30, avoids deformation or even damage to the product due to movement with the core-pulling component 30, and helps to improve the quality of the product.
[0067] The external force can originate from the mating part 42 that abuts against the abutment part 41, or from an electrically controlled drive mechanism. This application does not impose any special limitations on this. When the external force originates from an electrically controlled drive mechanism, the core-pulling part 30 can move only along the second direction to move between the working position and the disengaged position, and the abutment part 41 also moves only along the second direction.
[0068] In some embodiments, such as Figures 2 to 4 As shown, the anti-stick component 40 also includes a mating member 42, which is located on the side of the abutment member 41 away from the article along the second direction; during the movement of the core puller 30 from the working position to the disengaged position, the abutment member 41 abuts against the mating member 42 so that the mating member 42 provides external force to the abutment member 41.
[0069] The anti-stick component 40 includes an abutment 41 and a mating member 42. The core puller 30 and the mating member 42 are spaced apart from each other in a second direction, allowing the core puller 30 sufficient space to move along a first direction. The abutment 41 is located between the mating member 42 and the product. During the movement of the core puller 30 from the working position to the disengaged position, the two ends of the abutment 41 along the second direction can respectively contact the mating member 42 and the product. The mating member 42 provides an external force to the abutment 41, maintaining the abutment 41 in contact with the product in the second direction. When the core puller 30 is in the disengaged position, the abutment 41 can be offset from the mating member 42 or move away from the product along the contour of the mating member 42.
[0070] Specifically, the surface of the mating part 42 facing the abutting part 41 is called the abutting surface 422, which is used to abut against the abutting part 41. During the movement of the core-pulling part 30 from the working position to the disengaged position, the distance between the abutting surface 422 of the abutting part 41 and the product in the second direction remains constant, keeping the abutting part 41 stationary in the second direction. When the core-pulling part 30 reaches the disengaged position, the abutting part 41 can be misaligned with the mating part 42, that is, the abutting part 41 leaves the abutting surface 422 and has no contact with the mating part 42; the abutting part 41 can also move along the contour of the mating part 42 and move away from the product, that is, the distance between the abutting surface 422 of the abutting part 41 and the product in the second direction increases.
[0071] Therefore, during the movement of the core-pulling component 30 from the working position to the detachment position, the mating component 42 abuts against the abutting component 41, so that the abutting component 41 does not move away from the product along with the core-pulling component 30, but maintains the state of abutting against the product, thereby providing a thrust to the product in the opposite direction to the direction in which the core-pulling component 30 pulls the product, avoiding deformation or even damage to the product due to movement with the core-pulling component 30, realizing the separation of the product from the core-pulling component 30, and helping to improve the quality of the product.
[0072] In some embodiments, such as Figures 3 to 5As shown, the anti-stick component 40 also includes a reset component 43 that cooperates with the abutment component 41. During the movement of the core puller 30 from the working position to the disengagement position, the reset component 43 is compressed under the force of the abutment component 41. When the core puller 30 reaches the disengagement position, the abutment component 41 is reset under the elastic force of the reset component 43.
[0073] The anti-stick component 40 includes an abutment 41, a mating part 42, and a resetting part 43. One end of the resetting part 43 contacts or connects to the abutment 41, and the other end of the resetting part 43 contacts or connects to the core-pulling part 30. When the abutment 41 moves relative to the core-pulling part 30 in a second direction, the resetting part 43 can store or release elastic force. When the core-pulling part 30 is in the working position, the resetting part 43 is in its natural state, and the position of the abutment 41 relative to the core-pulling part 30 at this time is regarded as the initial position.
[0074] During the movement of the core-pulling component 30 from the working position to the disengaged position, the core-pulling component 30 approaches the mating component 42 in the second direction. The mating component 42 provides an external force to the abutment component 41, causing the abutment component 41 to move relative to the core-pulling component 30, thus compressing the reset component 43 and storing elastic force. When the core-pulling component 30 reaches the disengaged position, the external force provided by the mating component 42 to the abutment component 41 decreases or is released, and the reset component 43 releases its elastic force, pushing the abutment component 41 away from the product, so that the abutment component 41 returns to its initial position relative to the core-pulling component 30, that is, the abutment component 41 is reset.
[0075] The reset member 43 is capable of elastic deformation. For example, the reset member 43 is a spring.
[0076] Therefore, during the movement of the core-pulling component 30 from the working position to the disengagement position, the reset component 43 can store elastic force; when the core-pulling component 30 reaches the disengagement position, the reset component 43 can release the elastic force to make the abutment component 41 move away from the product, thereby avoiding affecting the demolding of the product.
[0077] In some embodiments, such as Figure 4 As shown, the core-pulling component 30 has a through hole 31 and a first end face 32 located around the through hole 31. The abutting component 41 includes a first abutting portion 411 that abuts against the mating component 42 and a second abutting portion 412 that abuts against the product. The first abutting portion 411 has a second end face 4111 on the side away from the mating component 42 along the second direction. The second abutting portion 412 protrudes from the second end face 4111 and passes through the through hole 31. The resetting component 43 is sleeved on the second abutting portion 412 and is located between the first end face 32 and the second end face 4111.
[0078] The core-pulling member 30 has a through hole 31 extending along a second direction, and the abutment member 41 passes through the through hole 31 and is movable along the through hole 31. The core-pulling member 30 also has a first end face 32 located on the periphery of the through hole 31, the extension direction of the first end face 32 may be perpendicular to the second direction, and the first end face 32 is used to abut or connect to the reset member 43.
[0079] The abutting member 41 includes a first abutting portion 411 and abutting portion 412. The first abutting portion 411 and the second abutting portion 412 are connected. The first abutting portion 411 can abut against the mating member 42, and the second abutting portion 412 can abut against the article. The radial dimension of the first abutting portion 411 may be larger than the radial dimension of the second abutting portion 412. The first abutting portion 411 has a second end face 4111 on the side facing the second abutting portion 412, and the extension direction of the second end face 4111 may be perpendicular to a second direction. The second abutting portion 412 is connected to the second end face 4111 and extends from the second end face 4111 along the second direction. The second abutting portion 412 passes through the through hole 31 and can move along the through hole 31.
[0080] The first end face 32 and the second end face 4111 are spaced apart and face each other. The reset member 43 is located between the first end face 32 and the second end face 4111, and can be sleeved on the second abutment portion 412. Optionally, the first end face 32 is closer to the product than the second end face 4111. Similarly, the second end face 4111 is also optionally closer to the product than the first end face 32.
[0081] Therefore, during the movement of the core-pulling component 30 from the working position to the release position, the first end face 32 approaches the second end face 4111 and compresses the reset component 43, causing the reset component 43 to store elastic force; when the core-pulling component 30 reaches the release position, the reset component 43 releases the elastic force and pushes the abutment component 41 away from the product, avoiding the abutment component 41 from affecting the demolding of the product.
[0082] In some embodiments, see continue to see Figure 4 The core-pulling component 30 has a receiving groove 33 communicating with the through hole 31. One of a limiting groove 34 and a limiting protrusion 35 is provided on the side wall of the receiving groove 33. The other of a limiting groove 34 and a limiting protrusion 35 is provided on the first abutting part 411. The limiting protrusion 35 extends into the limiting groove 34 to limit the range of movement of the abutting component 41 relative to the core-pulling block 36.
[0083] The core-pulling component 30 has a receiving groove 33. The receiving groove 33 extends along a second direction and is located on the side of the through hole 31 near the mating component 42 and communicates with the through hole 31. One of a limiting groove 34 and a limiting protrusion 35 is provided on the side wall of the receiving groove 33, and the other of the limiting groove 34 and the limiting protrusion 35 is provided on the abutting component 41. The other of the limiting groove 34 and the limiting protrusion 35 can be provided on the first abutting portion 411, or the other of the limiting groove 34 and the limiting protrusion 35 can be provided on the second abutting portion 412.
[0084] The radial dimension of the receiving groove 33 is larger than that of the through hole 31, and the abutment 41 is partially accommodated in the receiving groove 33. A first end face 32 is formed at the junction of the receiving groove 33 and the through hole 31, and the first end face 32 is closer to the product than the second end face 4111. When the core-pulling member 30 is in the working position, the reset member 43 can be in a natural or compressed state, and the limiting protrusion 35 abuts against the side wall of the limiting groove 34 closest to the product, limiting the depth of the second abutment 412 inserted into the through hole 31. During the movement of the core-pulling member 30 from the working position to the disengaged position, the limiting protrusion 35 moves relative to the limiting groove 34, the distance between the first end face 32 and the second end face 4111 decreases, and the reset member 43 is compressed. When the core-pulling member 30 reaches the disengaged position, the reset member 43 releases its elastic force to reset the abutment 41, and the limiting protrusion 35 abuts against the side wall of the limiting groove 34 closest to the product.
[0085] Therefore, the limiting protrusion 35 can only move between the groove walls of the limiting groove 34. When the core-pulling part 30 moves from the working position, the cooperation between the limiting protrusion 35 and the limiting groove 34 prevents the abutment 41 from being inserted into the molding cavity and affecting the shape of the product. When the core-pulling part 30 reaches the disengagement position, the resetting part 43 releases its elastic force and pushes the abutment 41 away from the product. The cooperation between the limiting protrusion 35 and the limiting groove 34 can prevent the abutment 41 from coming out of the through hole 31, which helps to realize the repeated operation of the mold.
[0086] In some embodiments, such as Figures 2 to 4 and Figure 7 As shown, the mating member 42 has an abutting surface 422 that abuts against the abutting member 41; the abutting member 41 has point-to-surface contact with the abutting surface 422; and / or, the mating member 42 has a groove 423 and a guide surface 424 located between the groove 423 and the abutting surface 422, the guide surface 424 being inclined relative to the abutting surface 422 in a direction away from the core-pulling member 30, and when the core-pulling member 30 reaches the disengaged position, one end of the abutting member 41 near the mating member 42 is guided into the groove 423 by the guide surface 424.
[0087] The mating part 42 has an abutment surface 422 on the side facing the abutment part 41. The abutment surface 422 extends in a direction parallel to the movement direction of the moving mold 20, so that the distance between the abutment surface 422 and the molding cavity is constant. The abutment part 41 abuts against the abutment surface 422 and remains stationary in a second direction.
[0088] The end of the abutment member 41 facing the abutment surface 422 can be configured such that its radial dimension decreases as it approaches the abutment surface 422, or it can be configured such that its end facing the abutment surface 422 is an arc-shaped surface. The abutment member 41 makes point-to-surface contact with the abutment surface 422. After the product is demolded, the core-pulling member 30 can be moved from the disengaged position to the working position. The end of the abutment member 41 helps guide the abutment member 41 back from the edge of the mating member 42 to the abutment surface 422, thereby enabling repetitive operation.
[0089] The mating part 42 also has a groove 423 and a guide surface 424. The guide surface 424 is located between the abutment surface 422 and the groove 423. The groove 423 is further away from the core-pulling part 30 relative to the abutment surface 422, and the guide surface 424 is inclined away from the core-pulling part 30 relative to the abutment surface 422. When the core-pulling part 30 reaches the release position, the abutment part 41 enters the groove 423 through the guide surface 424, causing the abutment part 41 to move away from the product and release the abutment. After the product is demolded, the core-pulling part 30 can be moved from the release position to the working position, and the abutment part 41 enters the abutment surface 422 from the groove 423 through the guide surface 424, thereby realizing repeated operation.
[0090] Thus, the abutment 41 moves along the contour of the mating part 42, and the guide surface 424 enables the abutment 41 to smoothly switch between the groove 423 and the abutment surface 422, which helps to realize the reset of the mold and repeated operation.
[0091] In some embodiments, such as Figures 3 to 6 As shown, the core-pulling component 30 includes a core-pulling block 36 and a slanted pin 37 connected to the core-pulling block 36. The slanted pin 37 is slidably disposed on the fixed mold 10 and slides along a first direction. When the core-pulling component 30 is in the working position, the core-pulling block 36 contacts the product.
[0092] The core-pulling component 30 includes a core-pulling block 36 and a slanted pin 37. The core-pulling block 36 is connected to the slanted pin 37. A groove can be provided on the fixed mold 10, extending along a first direction, and the slanted pin 37 passes through the groove and slides relative to the groove. When the core-pulling component 30 is in the working position, the core-pulling block 36 extends into the molding cavity and contacts the product. An abutment 41 is movably disposed on the core-pulling block 36.
[0093] Thus, by moving the inclined pin 37, the core-pulling block 36 is driven to enter and exit the molding cavity, thereby achieving lateral hole or groove formation in the product without affecting product demolding.
[0094] In some embodiments, such as Figure 2 , Figure 5 and Figure 6 As shown, the number of abutting parts 41 is at least two, and each abutting part 41 is arranged at intervals.
[0095] Therefore, the abutment 41 can support at least two positions of the article at the same time, which helps the article and the core pull part 30 to separate more thoroughly.
[0096] In some embodiments, such as Figure 6 As shown, the core-pulling component 30 includes a core-pulling block 36, which has a parting surface and a mating surface facing the product when the core-pulling component 30 is in the working position. The parting surface protrudes from the mating surface, and the mating surface has a through hole 31. The abutment 41 passes through the through hole 31.
[0097] The core-pulling block 36 has a parting surface and a mating surface. The parting surface protrudes from the mating surface and is used for lateral forming holes or grooves in the workpiece. When the core-pulling part 30 is in the working position, the mating surface is flush with the cavity wall of the forming cavity, and the parting surface protrudes from the cavity wall. A through hole 31 is formed on the mating surface, and the abutment part 41 passes through the through hole 31.
[0098] When the core-pulling component 30 is in the working position, the abutment 41 is flush with the mating surface to form the part of the product without holes or grooves. During the movement of the core-pulling component 30 from the working position to the disengaged position, the abutment 41 protrudes relative to the mating surface and continues to abut against the product. When the core-pulling component 30 reaches the disengaged position, the abutment 41 returns to its original position, making itself flush with the mating surface.
[0099] Therefore, the parting surface is used to form holes or grooves on the side of the product. When the core-pulling part 30 moves, the abutting part 41 on the mating surface can provide a thrust opposite to the direction of movement of the core-pulling part 30, so as to promote the separation of the product from the core-pulling part 30 without adhesion, which helps to improve the production quality of the product.
[0100] In some embodiments, see continue to see Figure 6 The number of abutting parts 41 is at least two, and the through holes 31 correspond one-to-one with the abutting parts 41. Each through hole 31 is arranged along the outer periphery of the parting surface.
[0101] Multiple abutment members 41 may be provided, and each abutment member 41 moves relative to the core-pulling block 36 through a corresponding through hole 31. The through holes 31 may be arranged around the outer periphery of the parting surface on the mating surface. The mating member 42 is constructed with a groove 423 and a guide surface 424 corresponding to the position of each abutment member 41.
[0102] Therefore, the abutment 41 is arranged around the parting surface and near the position where the product is likely to come into contact and stick, which helps to improve the separation effect between the product and the core-pulling part 30.
[0103] In a specific embodiment provided in this application, the delay stop (fitting part 42) and the rear mold core (moving mold 20) are spaced apart from each other. A slanted pin 37 and a core-pulling block 36 are provided between the delay stop and the rear mold core. The delay ejector pin (abutting part 41) is slidably disposed on the core-pulling block 36. When the rear mold core moves upward relative to the fixed mold 10, the slanted pin 37 can simultaneously move obliquely upward (in the first direction). The core-pulling block 36 has many areas where the glue is tightly packed, making the product easily pulled or even deformed by the core-pulling block 36. The delay stop abuts against the delay ejector pin, preventing the delay ejector pin from retracting with the core-pulling block 36. That is, the delay ejector pin remains in contact with the product in the second direction, providing a reverse ejection force to push the product away from the core-pulling block 36.
[0104] After being ejected a certain distance, the core-pulling block 36 completely detaches from the product. At this time, the reset component 43 ejects the delayed ejector pin, causing it to detach from the product. During the return stroke, the delayed ejector pin is strongly pressed back into place by the guide angle (guide surface 424) of the mating component 42, so as to start the next cycle of reciprocating motion.
[0105] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A non-stick core-pulling mold, characterized in that, include: Fixed mold; A moving mold, which mates with the fixed mold to form a molding cavity for accommodating the product; A movable core-pulling component, which can move between a working position in contact with the product and a disengaging position separated from the product; An anti-stick component includes an abutment member movably disposed on the core-pulling component; During the movement of the core-pulling component from the working position to the disengagement position, the core-pulling component moves away from the product, and the abutting component is subjected to external force and abuts against the product through movement; when the core-pulling component reaches the disengagement position, the external force acting on the abutting component is released, thereby releasing the abutting component from the product.
2. The anti-stick core-pulling mold according to claim 1, characterized in that, During the movement of the core-pulling component from the working position to the disengagement position, the core-pulling component moves away from the product in a second direction by moving in a first direction, and the abutting component moves relative to the core-pulling component in a direction closer to the product in the second direction under the action of the external force, so as to abut against the product. The second direction is oblique to the first direction.
3. The anti-stick core-pulling mold according to claim 2, characterized in that, The anti-stick component further includes a mating part located on the side of the abutment part facing away from the article along the second direction; During the movement of the core-pulling component from the working position to the disengagement position, the abutting component abuts against the mating component, so that the mating component provides the external force to the abutting component.
4. The anti-sticking core-pulling mold according to claim 3, characterized in that, The anti-stick component also includes a reset member that cooperates with the abutment member. During the movement of the core-pulling member from the working position to the disengagement position, the reset member is compressed under the force of the abutment member. When the core-pulling member reaches the disengagement position, the abutment member is reset under the elastic force of the reset member.
5. The anti-sticking core-pulling mold according to claim 4, characterized in that, The core-pulling component has a through hole and a first end face located around the through hole. The abutting component includes a first abutting portion that abuts against the mating component and a second abutting portion that abuts against the product. The first abutting portion has a second end face on the side opposite to the mating component along the second direction. The second abutting portion protrudes from the second end face and passes through the through hole. The resetting component is sleeved on the second abutting portion and located between the first end face and the second end face.
6. The anti-sticking core-pulling mold according to claim 5, characterized in that, The core-pulling component has a receiving groove communicating with the through hole. One of a limiting groove and a limiting protrusion is provided on the side wall of the receiving groove. The other of the limiting groove and the limiting protrusion is provided on the first abutting part. The limiting protrusion extends into the limiting groove to limit the range of movement of the abutting part relative to the core-pulling component.
7. The anti-stick core-pulling mold according to any one of claims 3 to 6, characterized in that, The mating component has an abutting surface that abuts against the abutting component; The abutting member makes point-to-point contact with the abutting surface; and / or, The mating member has a groove and a guide surface located between the groove and the abutment surface. The guide surface is inclined away from the core-pulling member relative to the abutment surface. When the core-pulling member reaches the disengaged position, the end of the abutment member near the mating member is guided into the groove by the guide surface.
8. The anti-stick core-pulling mold according to any one of claims 2 to 6, characterized in that, The core-pulling component includes a core-pulling block and a slanted pin connected to the core-pulling block. The slanted pin is slidably disposed on the fixed mold and slides along the first direction. When the core-pulling component is located in the working position, the core-pulling block contacts the product.
9. The anti-stick core-pulling mold according to any one of claims 1 to 6, characterized in that, The number of abutting members is at least two, and the abutting members are arranged at intervals between each other.
10. The anti-stick core-pulling mold according to any one of claims 1 to 4, characterized in that, The core-pulling component includes a core-pulling block, which has a parting surface and a mating surface facing the product when the core-pulling component is in the working position. The parting surface protrudes from the mating surface, and the mating surface has a through hole. The abutment is inserted into the through hole.
11. The anti-sticking core-pulling mold according to claim 10, characterized in that, The number of abutting members is at least two, and each through hole corresponds to one of the abutting members. Each through hole is arranged along the outer periphery of the parting surface.