Demolding assembly with integrated ejection structure

Abstract

The utility model relates to a stripping assembly technical field especially for the stripping assembly of self -bearing ejection structure, including base, the top of base is installed with collection storehouse, the top of base is installed with support frame, the top center of support frame is installed with first hydraulic assembly, the top center of base is installed with mould body, the bottom of mould body is installed with second hydraulic assembly, the outer wall of mould body is installed with auxiliary assembly, first hydraulic assembly includes first hydraulic cylinder, the below drive coupling of first hydraulic cylinder has first piston rod, the bottom installation of first piston rod is limited to the center of baffle. The device can set up auxiliary assembly in the inside of mould, cooperate the air pump and shower nozzle in the inside to the bottle cap that push after, and then to the bottle cap that push after assist feeding, the bottle cap is conveniently made to fall into the collection storehouse of mould other end and is concentrated collection, and then improve the stripping assembly to the efficiency that the bottle cap is demoulded.

Description

Technical Field

[0001] This utility model relates to the field of demolding components, specifically to a demolding component with a self-ejecting structure. Background Technology

[0002] PET refers to polyethylene terephthalate, a common plastic material with good mechanical properties, wear resistance, high transparency, and non-toxic and odorless characteristics. Due to its advantages such as high strength, good transparency, impermeability, light weight, and high production efficiency, it is often used to make beverage bottle caps. The production process of PET bottle caps includes raw material preparation, melt extrusion, mold forming, cooling and curing, and surface treatment. In order to ensure product quality and production efficiency, a demolding component with an ejection structure is usually used to ensure that the bottle cap can be smoothly released from the mold and avoid damage to the bottle cap.

[0003] Chinese utility model patent CN213227158U discloses a rapid demolding device for plastic bottle cap production. It includes a device where "the power provided by a second electric push rod adjusts an adjusting plate, which in turn adjusts a demolding rod. This adjustment allows the molded bottle cap to be removed from the molding opening, achieving rapid demolding and effectively avoiding demolding difficulties. A collection bucket collects the caps, preventing them from scattering." However, when ejecting the molded bottle caps, the pushing force acts on the center of the cap, making it difficult for the caps to fall into the collection bucket outside the mold. This affects the demolding process and reduces the demolding efficiency of the demolding assembly. Utility Model Content

[0004] The purpose of this invention is to provide a demolding assembly with a built-in ejection structure to solve the problem mentioned in the background art that when ejecting the molded bottle cap, the ejection force is applied to the center of the bottle cap, and the bottle cap is not easy to fall into the collection bucket outside the mold during ejection, which leads to a decrease in the demolding efficiency of the demolding assembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a demolding assembly with a self-ejecting structure, including a base, a collection chamber installed on the top of the base, a support frame installed on the top of the base, a first hydraulic component installed at the top center of the support frame, a mold body installed at the top center of the base, a second hydraulic component installed at the bottom of the mold body, and an auxiliary component installed on the outer wall of the mold body.

[0006] The first hydraulic assembly includes a first hydraulic cylinder, a first piston rod is driven and connected to the lower part of the first hydraulic cylinder, a center of a limit plate is installed at the bottom of the first piston rod, and a compression block is installed at the bottom center of the limit plate.

[0007] A push-out groove runs through the center of the bottom of the mold body, and an air-jet groove runs through one side of the inner wall of the mold body.

[0008] The auxiliary component includes an air pump, one end of which is connected to an air supply pipe, and the other end of which is connected to a flow divider, with a nozzle installed inside the flow divider.

[0009] The beneficial effects of this utility model are as follows: by setting an auxiliary component inside the mold to spray air onto the bottle cap after it has been pushed up, the bottle cap can be fed in an auxiliary manner, so that the bottle cap can fall into the collection chamber at the other end of the mold and be collected in a concentrated manner, thereby improving the efficiency of the demolding component in demolding the bottle cap.

[0010] To limit the position of the extrusion block that shapes the mold:

[0011] The support frame is further configured as follows: the support frame is a U-shaped structure with the opening facing downwards, and both ends of the U-shape of the support frame are located on both sides of the mold body. Limiting rods are provided on both sides of the support frame, and the bottom height of the limiting rods is the same as the top height of the mold body. The two ends of the limiting plate are respectively connected to the two limiting rods to form a through connection structure.

[0012] By adopting the above technical solution, limiting rods are set in the supports on both sides of the support frame to limit the lifting distance of the limiting plate, so as to avoid damage to the mold body caused by excessive lifting distance of the limiting plate, thereby ensuring the normal use of the demolding component and improving the demolding efficiency of the demolding component.

[0013] To achieve the extrusion and shaping of the bottle cap within the mold:

[0014] The extrusion block is further configured as follows: the extrusion block is a double-layer concentric disc structure, and the diameter of the bottom disc of the extrusion block is smaller than the diameter of the top disc; the mold body is a cylindrical structure with a groove on the top; and the outer wall of the top disc of the extrusion block and the inner wall of the mold body form a sliding connection structure.

[0015] By adopting the above technical solution, the first hydraulic component drives the extrusion block to rise and fall, thereby extruding the raw material in the mold and shaping the bottle cap in the mold. This allows the thickness of the bottle cap to be adjusted according to the needs by adjusting the height of the extrusion block.

[0016] To push the bottle cap after it has been shaped in the mold:

[0017] The second hydraulic assembly is further configured such that: the second hydraulic cylinder includes a second hydraulic cylinder, which is located directly below the mold body and mounted on the top of the base; the second hydraulic cylinder is driven by a second piston rod; a push plate is mounted on the top of the second piston rod; the push plate and the push groove are in close contact with each other; the push plate has a double-layer structure; and a sealing strip is provided at the connection between the push plate and the push groove.

[0018] By adopting the above technical solution, a second hydraulic component is set to drive the push plate to push the internally shaped bottle cap from the bottom of the mold, which facilitates the discharge of material from the mold and improves the demolding efficiency of the mold. At the same time, a sealing strip is set at the connection between the push plate and the push groove to prevent the raw material from leaking when it is shaped in the mold and improve the shaping effect of the mold.

[0019] To control the discharge direction of the bottle cap after it is pushed:

[0020] Further configuration: the flow distribution chamber is a semi-circular ring structure, and the flow distribution chamber is installed on one side of the top outer wall of the mold body. The flow distribution chamber and the collection chamber are respectively located on opposite sides of the mold body. The air jet channel is an inclined channel structure from bottom to top, and the nozzle is installed inside the air jet channel. The nozzle nozzle direction is consistent with the center line direction of the mold body.

[0021] By adopting the above technical solution, a semi-circular distribution of nozzles is set on one side of the inner wall of the top of the mold. When the push plate pushes the bottle cap to the top of the mold, the nozzles spray air to push the bottom end of the bottle cap, which can quickly make the bottle cap fall into the collection chamber at the other end for centralized collection, thereby improving the efficiency of the bottle cap's rapid demolding and thus improving the performance of the demolding component.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is an exploded enlarged structural diagram of the support frame and the first hydraulic component of this utility model;

[0025] Figure 3 This is an exploded enlarged structural diagram of the mold body and the second hydraulic component of this utility model;

[0026] Figure 4 This is an exploded magnified structural diagram of the mold body and auxiliary components of this utility model.

[0027] In the diagram: 1. Base; 2. Collection chamber; 3. Support frame; 301. Limiting rod; 4. First hydraulic assembly; 401. First hydraulic cylinder; 402. First piston rod; 403. Limiting plate; 404. Extrusion block; 5. Mold body; 501. Push groove; 502. Air jet groove; 6. Second hydraulic assembly; 601. Second hydraulic cylinder; 602. Second piston rod; 603. Push plate; 7. Auxiliary assembly; 701. Air pump; 702. Air supply pipe; 703. Diverter chamber; 704. Nozzle. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0029] Please see Figures 1 to 4 The demolding assembly with a self-ejection structure includes a base 1, a collection chamber 2 installed on the top of the base 1, a support frame 3 installed on the top of the base 1, a first hydraulic component 4 installed at the top center of the support frame 3, a mold body 5 installed at the top center of the base 1, a second hydraulic component 6 installed at the bottom of the mold body 5, and an auxiliary component 7 installed on the outer wall of the mold body 5.

[0030] The first hydraulic assembly 4 includes a first hydraulic cylinder 401, a first piston rod 402 is driven and connected to the lower part of the first hydraulic cylinder 401, the bottom of the first piston rod 402 is installed at the center of a limiting plate 403, and a pressing block 404 is installed at the bottom center of the limiting plate 403.

[0031] A push groove 501 runs through the center of the bottom of the mold body 5, and an air jet groove 502 runs through one side of the inner wall of the mold body 5.

[0032] The auxiliary component 7 includes an air pump 701, one end of which is connected to an air supply pipe 702, and the other end of the air supply pipe 702 is connected to a diversion chamber 703, with a nozzle 704 installed inside the diversion chamber 703.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, the support frame 3 is a U-shaped structure with the opening facing downwards, and both ends of the U-shape of the support frame 3 are located on both sides of the mold body 5. Limiting rods 301 are provided on both sides of the support frame 3, and the bottom height of the limiting rods 301 is the same as the top height of the mold body 5. The two ends of the limiting plate 403 are respectively connected to the two limiting rods 301 to form a through connection structure.

[0034] In this embodiment, as Figure 1 and Figure 2As shown, the extrusion block 404 is a double-layer concentric disc structure, and the diameter of the bottom disc of the extrusion block 404 is smaller than the diameter of the top disc. The mold body 5 is a cylindrical structure with a groove on the top, and the outer wall of the top disc of the extrusion block 404 and the inner wall of the mold body 5 form a sliding connection structure.

[0035] In this embodiment, as Figure 3 and Figure 4 As shown, the second hydraulic component 6 includes a second hydraulic cylinder 601, which is located directly below the mold body 5 and mounted on the top of the base 1. The second hydraulic cylinder 601 is driven by a second piston rod 602. A push plate 603 is mounted on the top of the second piston rod 602. The push plate 603 and the push groove 501 are in close contact with each other. The push plate 603 has a double-layer structure, and a sealing strip is provided at the connection between the push plate 603 and the push groove 501.

[0036] In this embodiment, as Figure 1 and Figure 4 As shown, the flow distribution chamber 703 has a semi-circular ring structure and is installed on one side of the top outer wall of the mold body 5. The flow distribution chamber 703 and the collection chamber 2 are located on opposite sides of the mold body 5. The air jet channel 502 has an inclined channel structure from bottom to top, and the nozzle 704 is installed inside the air jet channel 502. The nozzle direction of the nozzle 704 is consistent with the center line direction of the mold body 5.

[0037] The demolding assembly with its own ejection structure operates as follows:

[0038] First, the PET bottle cap material is melted and then injected into the mold body 5. The external hydraulic oil pump is started to inject hydraulic oil into the first hydraulic cylinder 401 (model: HSG63), which causes the first piston rod 402 to extend and move up and down, thereby driving the limiting plate 403 connected to the bottom of the first piston rod 402 to descend.

[0039] Subsequently, under the action of the limiting rods 301 in the support frame 3 that runs through both sides, the limiting plate 403 drives the extrusion block 404 below to descend, so that the limiting plate 403 fits against the top of the mold body 5, and the extrusion block 404 extrudes and shapes the raw material in the mold body 5, so that the raw material cooling operation can be carried out.

[0040] After the raw material cools down, the demolding operation can be carried out. The extrusion block 404 is reset by the first hydraulic cylinder 401, and hydraulic oil is injected into the second hydraulic cylinder 601 (model: HSG63) by the start of the external hydraulic oil pump, which causes the second piston rod 602 to extend and move up and down, thereby driving the push plate 603 connected to the top of the second piston rod 602 to rise, and then push the shaped bottle cap from the push groove 501 at the bottom center of the mold body 5 to rise, and push the shaped bottle cap to the top of the mold body 5.

[0041] Finally, the air pump 701 (model: RB-33D-1) is started to pump gas through the air supply pipe 702 into multiple nozzles 704 in the distribution chamber 703. The semi-circularly distributed nozzles 704 blow air onto one end of the bottom of the bottle cap, causing the bottle cap to move to the other end until it detaches from the top of the mold body 5 and falls into the collection chamber 2, thus completing the demolding operation of the bottle cap.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A demolding assembly with a self-ejecting structure, including a base (1), characterized in that: A collection chamber (2) is installed on the top of the base (1), a support frame (3) is installed on the top of the base (1), a first hydraulic component (4) is installed at the top center of the support frame (3), a mold body (5) is installed at the top center of the base (1), a second hydraulic component (6) is installed at the bottom of the mold body (5), and an auxiliary component (7) is installed on the outer wall of the mold body (5). The first hydraulic assembly (4) includes a first hydraulic cylinder (401), a first piston rod (402) is driven to the lower part of the first hydraulic cylinder (401), the bottom of the first piston rod (402) is installed at the center of a limiting plate (403), and a pressing block (404) is installed at the bottom center of the limiting plate (403). The bottom center of the mold body (5) is provided with a push groove (501), and one side of the inner wall of the mold body (5) is provided with an air jet groove (502). The auxiliary component (7) includes an air pump (701), one end of which is connected to an air supply pipe (702), and the other end of which is connected to a diversion chamber (703), and a nozzle (704) is installed inside the diversion chamber (703).

2. The demolding assembly with a self-ejecting structure as described in claim 1, characterized in that: The support frame (3) is a U-shaped structure with the opening facing downwards, and both ends of the U-shape of the support frame (3) are set on both sides of the mold body (5). Limiting rods (301) are set on both sides of the support frame (3), and the bottom height of the limiting rods (301) is the same as the top height of the mold body (5). The two ends of the limiting plate (403) are respectively connected to the two limiting rods (301) to form a through connection structure.

3. The demolding assembly with a self-ejecting structure as described in claim 1, characterized in that: The extrusion block (404) is a double-layer concentric disc structure, and the diameter of the bottom disc of the extrusion block (404) is smaller than the diameter of the top disc. The mold body (5) is a cylindrical structure with a groove on the top, and the outer wall of the top disc of the extrusion block (404) and the inner wall of the mold body (5) form a sliding connection structure.

4. The demolding assembly with a self-ejecting structure as described in claim 1, characterized in that: The second hydraulic component (6) includes a second hydraulic cylinder (601), which is located directly below the mold body (5) and is mounted on the top of the base (1). The second hydraulic cylinder (601) is driven by a second piston rod (602). A push plate (603) is mounted on the top of the second piston rod (602). The push plate (603) is in close contact with the push groove (501). The push plate (603) has a double-layer structure, and a sealing strip is provided at the connection between the push plate (603) and the push groove (501).

5. The demolding assembly with a self-ejecting structure as described in claim 1, characterized in that: The diversion chamber (703) is a semi-circular ring structure and is installed on one side of the top outer wall of the mold body (5). The diversion chamber (703) and the collection chamber (2) are located on opposite sides of the mold body (5). The air jet groove (502) is an inclined groove structure from bottom to top, and the nozzle (704) is installed inside the air jet groove (502). The nozzle direction of the nozzle (704) is consistent with the center line direction of the mold body (5).

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