A container molding die that facilitates demolding

Abstract

This invention discloses a container molding mold that facilitates demolding, comprising a mold core and two mold bodies. The two mold bodies are movable relative to each other, enabling mold opening and closing. When the mold is closed, the two mold bodies cooperate to form a molding cavity for making the container. The top of the molding cavity penetrates the top surfaces of the two mold bodies, forming air inlets on the top surfaces of the two mold bodies. The mold core is disposed on at least one of the two mold bodies. When the mold is closed, the mold core can move horizontally and switch between closed and open states. In the closed state, the mold core contacts the container; in the open state, the mold core can separate from the container. This invention, by providing a mold core on either of the two mold bodies, and the mold core acting on the container within the molding cavity, and by enabling the mold core to move horizontally and effectively separate from the container, prevents the mold core from interfering with the container demolding process, thus ensuring normal demolding.

Description

Technical Field

[0001] This invention relates to a container molding die that facilitates demolding. Background Technology

[0002] Existing glass or plastic containers have raised and recessed surfaces. They are typically blow-formed within a mold cavity during manufacturing, requiring demolding after molding to loosen and separate the container from the mold. However, conventional molds are half-parts without internal demolding mechanisms. The raised and recessed surfaces on the container surface can cause interference during demolding, preventing proper release. Summary of the Invention

[0003] According to one aspect of the present invention, a container molding die that facilitates demolding is provided, comprising:

[0004] Two mold bodies can move relative to each other to open and close the mold. When the mold is closed, the two mold bodies can cooperate to form a molding cavity for making a container. The top of the molding cavity penetrates the top surface of the two mold bodies and an air blowing port is formed on the top surface of the two mold bodies.

[0005] A mold core is disposed on at least one of the two mold bodies. When the mold is closed, the mold core can move horizontally and switch between closed and open states. In the closed state, the mold core is in contact with the container; in the open state, the mold core can be separated from the container.

[0006] The present invention provides a container molding mold for easy demolding. It comprises a mold core on either of two mold bodies, which acts on the container within the molding cavity. During manufacturing, the two mold bodies move towards each other to close the mold, with the mold core in a closed state. An air blower blows air through an air outlet into the preform within the molding cavity to form the container. The mold core contacts the surface of the container, and the container is formed. The mold core then moves horizontally to switch to an open state, allowing for effective separation of the mold core and the container. At this point, the two mold bodies move in opposite directions to open the mold, preventing the mold core from interfering with the container's demolding process and ensuring normal demolding.

[0007] In some embodiments, the mold core has a movable forming part; in the closed state, the movable forming part is in contact with the container surface to form an uneven surface on the container surface; in the open state, the movable forming part can be separated from the uneven surface of the container.

[0008] In some embodiments, at least one of the two mold bodies has a fixed forming portion; in the closed state, the fixed forming portion and the movable forming portion cooperate to form a concave-convex surface on the container surface.

[0009] In some embodiments, each of the mold bodies is provided with a corresponding mold core. When the molds are closed, the two corresponding mold cores on the two mold bodies are connected and can move synchronously in the horizontal direction.

[0010] In some embodiments, the system further includes a transmission element and an elastic element for resetting the transmission element. When the transmission element is subjected to external force, the elastic element can deform, and the transmission element drives the mold core to move in the horizontal direction to switch to the closed state. When the transmission element is not subjected to external force, the elastic element returns to its original deformation, and the transmission element can drive the mold core to move and reset to switch to the open state.

[0011] In some embodiments, the mold core and the mold body cooperate to form a mounting through hole, and the transmission member can extend and retract within the mounting through hole to drive the mold core to move in the horizontal direction.

[0012] In some embodiments, the transmission component includes a mounting portion and a limiting portion, the elastic element is fitted onto the mounting portion, and the limiting portion is inclinedly disposed on the mounting portion and can extend and retract within the mounting through hole.

[0013] In some embodiments, a fixing plate is also included, which is disposed on the mold body and is used to prevent the transmission component from disengaging from the mounting through hole by interfering with the transmission component through the reverse buckle.

[0014] In some embodiments, at least one of the mold bodies is provided with an air guide hole.

[0015] In some embodiments, a base for supporting the container is also included, and the two mold bodies move horizontally to connect or separate from the base. When the mold is closed, the two mold bodies and the base cooperate together to form a molding cavity. Attached Figure Description

[0016] Figure 1 This is a perspective view of the container molding die for easy demolding in this invention;

[0017] Figure 2 for Figure 1 A cross-sectional view of a container molding die for easy demolding is shown.

[0018] Figure 3 for Figure 1 A partial structural diagram of a container molding die for easy demolding is shown.

[0019] Figure 4 for Figure 1 The image shows an exploded view of a container molding die designed for easy demolding.

[0020] In the diagram: 10, mold body; 100, air inlet; 101, fixed forming part; 102, air guide hole; 103, movable groove; 20, mold core; 200, movable forming part; 201, mounting through hole; 30, transmission component; 300, mounting part; 301, limiting part; 302, connecting part; 40, elastic component; 50, fixing plate; 500, limiting hole; 60, base. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., 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, an electrical connection, or a connection that allows communication between the components; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples, without contradiction.

[0026] Please refer to Figure 4 This embodiment provides a container molding die that facilitates demolding, which is particularly suitable for molding glass containers such as glass bottles. Specifically, the container molding die that facilitates demolding includes a die body 10, a die core 20, a transmission component 30, an elastic component 40, a fixing plate 50, and a base 60.

[0027] Please refer to Figure 4 The mold body 10 is configured with two mold bodies 10, which can move horizontally to open and close the mold. When the mold is closed, the two mold bodies 10 cooperate to form a molding cavity for making a container. The top of the molding cavity penetrates the top surface of the two mold bodies 10, and an air blowing port 100 is formed on the top surface of the two mold bodies 10. A preform is placed in the molding cavity beforehand. During manufacturing, the two mold bodies 10 move towards each other to close the mold, and the air blowing head blows air into the preform in the molding cavity through the air blowing port 100 to form the container. After the container is formed, the two mold bodies 10 move away from each other to open the mold, allowing the container to be demolded and removed. In other embodiments, the two mold bodies 10 can move vertically to open and close the mold.

[0028] Please refer to Figure 4The mold body 10 has a movable groove 103, within which the mold core 20 can move horizontally. Specifically, there are four mold cores 20, and the number of movable grooves 103 is the same, meaning that movable grooves 103 are provided on both sides of the two mold bodies 10, and the four mold cores 20 are respectively installed in the four movable grooves 103, with a clearance between each mold core 20 and the movable groove 103. When the mold is closed, the mold core 20 can move horizontally within the movable groove 103, switching between closed and open states. In the closed state, the mold core 20 contacts the container and forms a raised surface on the container surface. In the open state, the mold core 20 can separate from the container, ensuring that the raised surface of the container does not interfere with the mold core 20, thus achieving effective demolding of the container, ensuring the integrity of the container's surface and improving its aesthetic quality. In other embodiments, the number of mold cores 20 can be set to one, that is, only set on one of the two mold bodies 10, or the number of mold cores 20 can be set to three, that is, one mold core 20 is set on one mold body 10, and two mold cores 20 are set on each side of the other mold body 10. Of course, the number of mold cores 20 can be specifically set according to actual production needs.

[0029] In this embodiment, the two mold cores 20 of the two mold bodies 10 are positioned correspondingly, please refer to... Figure 3 During mold closing, the two corresponding mold cores 20 can be joined together to form a single unit and move synchronously in the horizontal direction. This improves the demolding efficiency of the container.

[0030] Please refer to Figure 4 The mold core 20 has a movable forming part 200; in the closed state, the movable forming part 200 is in contact with the surface of the container, forming a concave-convex surface on the surface of the container; in the open state, the movable forming part 200 can separate from the concave-convex surface of the container. In this way, the mold core 20 can change position relative to the container, thus avoiding undercutting interference of the concave-convex surface during demolding, allowing the container to be demolded normally.

[0031] Please refer to Figure 4 Each of the two mold bodies 10 has a fixed forming part 101. In the closed state, the fixed forming part 101 and the movable forming part 200 cooperate to form a concave-convex surface on the container surface. Specifically, on each mold body 10, the fixed forming part 101 is located between two movable grooves 103, that is, between two movable forming parts 200, so that the forming parts can be connected to form a connected concave-convex surface on the container. More specifically, when the mold is closed, the forming parts can form a symmetrical forming cavity. In a specific implementation, the forming cavity is preferably a columnar structure, thereby forming a circumferentially arranged concave-convex surface on the surface of the container. In other embodiments, the number of fixed forming parts 101 is set to one, that is, it is only provided on one of the two mold bodies 10.

[0032] Please refer to Figure 4 Each mold core 20 and its corresponding mold body 10 have a mounting through hole 201. A transmission component 30 is installed in each mounting through hole 201, and the number of elastic components 40 is matched with the number of transmission components 30. The elastic components 40 are preferably high-temperature springs, thus meeting the requirements for operation under high-temperature conditions during container manufacturing. When the mold is closed, the transmission component 30 is subjected to external force, which compresses the elastic component 40. The elastic component 40 is then compressed, causing the transmission component 30 to retract into the mounting through hole 201 and drive the mold core 20 to move closer to the container within the movable groove 103, switching to the closed state. When the mold is opened, the transmission component 30 is not subjected to external force, and the elastic component 40 stretches and resets, causing the transmission component 30 to extend out of the mounting through hole 201. This allows the transmission component 30 to drive the mold core 20 to move and reset, switching to the open state. This allows the movable forming part 200 to separate from the concave and convex surfaces of the container, enabling the container to be demolded normally.

[0033] Preferably, please refer to Figure 4 The transmission component 30 includes a mounting portion 300 and a limiting portion 301. An elastic element 40 is fitted onto the mounting portion 300. The limiting portion 301 is inclinedly disposed on the mounting portion 300 and can extend and retract within the mounting through hole 201. This configuration converts the longitudinal movement of the transmission component 30 within the mounting through hole 201 into the lateral movement of the mold core 20 within the movable groove 103. This ensures that the movement of the movable forming part 200 within the movable groove 103 is sufficient to effectively separate it from the concave and convex surfaces of the container, allowing the container to be demolded normally. In specific implementations, the inclination angle of the limiting portion 301 can be set according to the size of the container, with an inclination angle of 45°-85°, preferably 75°. This inclination angle better meets the stroke requirements of the mold core 20.

[0034] Specifically, please refer to Figure 1-4 A connecting part 302 is provided on the end of the limiting part 301 away from the mounting part 300. The connecting part 302 is eccentrically positioned relative to the limiting part 301. When the mold is closed, the connecting part 302 is squeezed by external force, which allows the limiting part 301 to squeeze the elastic element 40. The elastic element 40 is compressed, and the limiting part 301 retracts into the mounting through hole 201, causing the mold core 20 to move closer to the container in the movable groove 103 and switch to the closed state. When the mold is opened, the connecting part 302 is not squeezed by external force, and the elastic element 40 stretches and resets, causing the connecting part 302 to extend out of the mounting through hole 201. This allows the limiting part 301 to move and reset the mold core 20 to switch to the open state, so that the movable forming part 200 can separate from the concave and convex surfaces of the container, and the container can be demolded normally.

[0035] For specific implementation, please refer to Figure 1 The connecting part 302 is provided with a clearance. Of course, the connecting part 302 can also be a regular cylindrical structure.

[0036] Please refer to Figure 1 Each mold body 10 has several air guide holes 102. These air guide holes 102 extend from the surface of the mold body 10 through the interior of the mold body 10 and can be connected to the movable groove 103 and the mounting through hole 201 respectively. In this way, after the container is formed, cooling gas can be passed into the air guide holes 102 to cool the internal components of the mold, which helps to extend the service life.

[0037] Please refer to Figure 1 , 4 Each of the two mold bodies 10 is connected to a fixing plate 50. Specifically, each fixing plate 50 is installed on the top surface of each mold body 10. The fixing plate 50 has a limiting hole 500, which corresponds to the mounting through hole 201. The diameter of the limiting hole 500 is smaller than the diameter of the mounting through hole 201 and smaller than the outer diameter of the limiting part 301. The connecting part 302 passes through the limiting hole 500 and can extend and retract within the limiting hole 500. In the open state, the limiting part 301 can abut against the bottom surface of the fixing plate 50, that is, the fixing plate 50 can interfere with the transmission component 30 by interlocking and restricting the transmission component 30 from disengaging from the mounting through hole 201. Thus, the transmission component 30 can be effectively installed in the mounting through hole 201.

[0038] More specifically, please refer to Figure 4 Each fixing plate 50 is detachably connected to each mold body 10. For example, it can be installed on the mold body 10 by means of screws, pins, buckles, magnetic attraction, etc. This setting facilitates the assembly and disassembly of components such as mold core 20, transmission component 30, and elastic component 40.

[0039] Please refer to Figure 4 The base 60 supports the container and is located between the two mold bodies 10. The two mold bodies 10 move horizontally to connect with or separate from the base 60. When the mold is closed, the two mold bodies 10 move closer to the base 60 and cooperate to form a molding cavity. When the mold is opened, the two mold bodies 10 move away from the base 60 so that the container on the base 60 is exposed and removed. Specifically, the two mold bodies 10 have receiving grooves for accommodating the base 60. The receiving grooves are located below the molding cavity. When the mold is closed, the base 60 is accommodated in the receiving grooves.

[0040] To manufacture containers using the aforementioned easy-to-demold container molding molds, please refer to... Figure 1-4Before mold closing, a prototype is formed in the initial mold and placed on the base 60 using a jaw clamp accessory. The two mold bodies 10 are then closed, and the air blower, driven by a cylinder, is aimed at the top of the two mold bodies 10 and pressed down, thereby driving the four connecting parts 302 to move downward. The elastic element 40 is compressed by the limiting part 301, and the connecting parts 302 retract into the limiting hole 500. The four mold cores 20 switch to the closed state, and the air blower blows air into the air outlet 100, causing the prototype to be formed into a container in the molding cavity, so that the bottom of the container is aligned with the mold core. The top surface of the base 60 is attached to the container, so that the surface of the container is attached to the movable forming part 200 on the mold core 20 and the fixed forming part 101 on the two mold bodies 10, so that the surface of the container is formed with concave and convex surfaces. After the blowing head finishes working, it is removed, the elastic element 40 is stretched and reset, so that the transmission element 30 moves upward and resets. The connecting part 302 extends out of the limiting hole 500, the four mold cores 20 are switched to the open state, the movable forming part 200 is separated from the concave and convex surfaces, and after the mold is opened, the clamping arm enters and clamps out the finally formed container.

[0041] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A container molding die that facilitates demolding, characterized in that, include: Two mold bodies can move relative to each other to open and close the mold. When the mold is closed, the two mold bodies can cooperate to form a molding cavity for making a container. The top of the molding cavity penetrates the top surface of the two mold bodies and an air blowing port is formed on the top surface of the two mold bodies. A mold core is disposed on at least one of the two mold bodies. When the mold is closed, the mold core can move horizontally and switch between closed and open states. In the closed state, the mold core is in contact with the container; in the open state, the mold core can be separated from the container. Transmission components; An elastic element is used to reset the transmission element; When the transmission component is subjected to external pressure, the elastic element can deform, and the transmission component drives the mold core to move in the horizontal direction to switch to the closed state; when the transmission component is not subjected to external pressure, the elastic element returns to its original deformation, and the transmission component can drive the mold core to move and reset to switch to the open state. The mold core and the mold body cooperate to form a mounting through hole, and the transmission component can extend and retract within the mounting through hole to drive the mold core to move in the horizontal direction. The transmission component includes a mounting part and a limiting part. The elastic element is fitted onto the mounting part, and the limiting part is inclinedly disposed on the mounting part and can extend and retract within the mounting through hole.

2. The container molding die for easy demolding according to claim 1, characterized in that, The mold core has a movable forming part; in the closed state, the movable forming part is attached to the surface of the container to form a concave-convex surface on the surface of the container; in the open state, the movable forming part can be separated from the concave-convex surface of the container.

3. The container molding die for easy demolding according to claim 2, characterized in that, At least one of the two mold bodies has a fixed forming part; in the closed state, the fixed forming part and the movable forming part cooperate to form a concave-convex surface on the container surface.

4. The container molding die for easy demolding according to claim 1, characterized in that, Each mold body is provided with a corresponding mold core. When the mold is closed, the two corresponding mold cores on the two mold bodies are connected and can move synchronously in the horizontal direction.

5. The container molding die for easy demolding according to claim 1, characterized in that, It also includes a fixing plate, which is disposed on the mold body and is used to prevent the transmission component from disengaging from the mounting through hole by interfering with the transmission component through the reverse buckle.

6. The container molding die for easy demolding according to claim 1, characterized in that, At least one of the mold bodies has an air guide hole.

7. The container molding die for easy demolding according to claim 1, characterized in that, It also includes a base for supporting the container, and the two mold bodies move horizontally to connect or separate from the base. When the mold is closed, the two mold bodies and the base cooperate together to form a molding cavity.

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