Hypa ring injection mold convenient for rapid demolding

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a HEPA ring injection mold convenient for quick demolding, which comprises an upper fixing plate, a female mold plate is fixedly mounted on the left side of the upper fixing plate through screws, a male mold plate is arranged on the side surface of the female mold plate, and an ejection mechanism and a cooling mechanism are arranged in the male mold plate. According to the HEPA ring injection mold convenient to quickly demold, on one hand, the surface of the additionally arranged vibrating plate is subjected to hard chromium plating treatment, and a chromium plating layer of 20-50 microns not only enhances wear resistance, resists friction loss and prolongs the service life by virtue of high hardness, but also reduces the friction coefficient with a HEPA ring by virtue of high smoothness, and improves the demolding efficiency and the product quality; and the performance of the vibrating plate is stabilized by good corrosion resistance. And on the other hand, a spring I and a spring II in the ejection mechanism act together, so that an elastic sheet group triggers a vibration plate to vibrate, the adhesion problem of the HEPA ring and the mold is solved, product damage is avoided, and the vibration plate is matched with the male mold core in shape, so that demolding is smoother.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a HEPA ring injection mold that facilitates quick demolding. Background Technology

[0002] In the field of injection molding production in the HEPA ring, existing injection molds suffer from a series of problems that seriously restrict production efficiency and product quality.

[0003] From the perspective of mold component wear, the vibratory platen in the mold suffers severe wear due to the lack of effective protection during the frequent vibration demolding process. Vibratory plates made of ordinary materials have low surface hardness, and when subjected to friction from the HEPA ring and mechanical contact with other mold components, obvious wear marks appear in a short time, significantly shortening the replacement cycle and increasing production costs and downtime. Furthermore, ordinary vibratory platen materials have poor corrosion resistance, making them highly susceptible to rust and corrosion in the humid environment of injection molding workshops, which may contain chemicals. This affects their structural strength and vibration performance, leading to overall mold instability.

[0004] In the demolding process, traditional molds present significant problems with demolding efficiency and product quality. After injection molding, HEPA rings commonly adhere to the mold. Because mold design often fails to adequately consider ease of demolding, considerable external force is often required to forcibly separate the HEPA ring from the mold. This not only consumes significant manpower and time but also frequently leads to deformation, cracking, and other damage to the HEPA ring, making it difficult to improve product yield. Furthermore, the relatively rough surface of the vibration platen in conventional molds results in a high coefficient of friction with the HEPA ring, further hindering the demolding process and reducing overall production efficiency. Therefore, there is an urgent need to improve the HEPA ring injection mold to facilitate rapid demolding and solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a HEPA ring injection mold that facilitates quick demolding, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a HEPA ring injection mold for easy and rapid demolding, comprising an upper fixed plate, an injection port in the middle of the upper fixed plate, a female template fixedly mounted on the left side of the upper fixed plate by screws, a male template on the side of the female template, a mold foot on the left side of the male template, and the mold foot fixedly mounted on a lower base plate by pins; the HEPA ring injection mold for easy and rapid demolding includes an ejection mechanism and a cooling mechanism, the ejection mechanism including a male template, a male mold core fixedly mounted inside the male template, a vibrating plate movably mounted on the male mold core, and the surface of the vibrating plate being hard chrome plated with a chrome plating layer thickness of 20-50 micrometers.

[0007] Preferably, the bottom surface shape of the vibration plate is consistent with the shape of the male mold core, and six sets of fixing rods are fixedly installed at the bottom of the vibration plate, with a limit plate fixedly installed at the end of each fixing rod.

[0008] Preferably, the vibrating plate and the male mold core are provided with six sets of ejection holes, and six sets of mounting holes are provided between the ejection holes. The fixing rod and the limiting plate are provided in the mounting holes, and a spring is fixedly installed between the limiting plate and the mounting hole.

[0009] Preferably, an ejector base plate is provided between the mold feet, an ejector pin is fixedly installed on the ejector base plate, and an ejector plate is movably installed on the ejector pin.

[0010] Preferably, the ejector pin has three sets of mounting cavities, the upper end of the mounting cavity is provided with a stop block, and the lower end of the mounting cavity is provided with a fixing shaft.

[0011] Preferably, a first spring and a second spring are movably mounted on the fixed shaft, and a stop block is provided between the upper ends of the first spring and the second spring. A first spring is fixedly installed between the first spring and the second spring.

[0012] Preferably, the cooling mechanism includes a male template, a water inlet on the side of the male template, a vortex cooling pipe inside the male template, and a water outlet below the water inlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This HEPA ring injection mold, which facilitates rapid demolding, differs from traditional HEPA ring injection molds in that the added vibrating plate has a hard chrome-plated surface with a chrome layer thickness of 20-50 micrometers. This high hardness significantly enhances the wear resistance of the vibrating plate, effectively resisting frictional wear from the HEPA ring and other mold components during frequent demolding operations, thus greatly extending its service life. Its high surface finish reduces the coefficient of friction with the HEPA ring, decreasing demolding resistance and making demolding smoother, significantly improving demolding efficiency and product quality. Furthermore, its excellent corrosion resistance ensures stable performance of the vibrating plate in complex environments.

[0015] 2. This HEPA ring injection mold, which facilitates rapid demolding, utilizes an ejection mechanism design. When the ejector rod passes through the male mold core, the combined action of springs one and two causes the spring sheet assembly to vibrate as it passes through the vibrating plate, accelerating the separation of the HEPA ring from the plate. This effectively solves the problem of HEPA ring sticking to the mold in traditional demolding, significantly improving demolding efficiency. Furthermore, it avoids damage to the HEPA ring caused by strong pulling, improving product yield. Moreover, the shape of the bottom surface of the vibrating plate matches the male mold core, ensuring uniform vibration transmission and further guaranteeing even force distribution on the HEPA ring, making the demolding process smoother. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a half-sectional schematic diagram of the ejection mechanism of this utility model;

[0019] Figure 4 This is a half-sectional schematic diagram of the ejector pin of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the cooling mechanism of this utility model.

[0021] In the diagram: 1 Upper fixing plate, 2 Injection port, 3 Female mold plate, 4 Male mold plate, 5 Mold foot, 6 Lower base plate, 7 Ejector base plate, 8 Ejector panel, 201 Vibration plate, 202 Male mold core, 203 Ejection hole, 204 Mounting hole, 205 Ejector pin, 2051 Mounting cavity, 2052 Stop block, 2053 Fixing shaft, 2054 Spring 1, 2055 Spring 2, 2056 Spring 1, 206 Fixing rod, 207 Limiting plate, 208 Spring 2, 301 Inlet, 302 Outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Based on existing technology, molds often face difficulties in demolding. Ordinary vibratory plates, made of materials with low surface hardness, show noticeable wear quickly due to friction with the HEPA ring and mechanical contact with other mold components. This significantly shortens the replacement cycle, increasing production costs and downtime. Furthermore, ordinary vibratory plates have poor corrosion resistance, easily rusting and corroding in the humid environment of injection molding workshops where chemicals may be present. This affects their structural strength and vibration performance, leading to overall mold instability. Additionally, HEPA rings commonly adhere to the mold after injection molding. Because mold design often fails to adequately consider demolding convenience, significant external force is required to forcibly separate the HEPA ring from the mold during demolding. This not only consumes considerable manpower and time but also frequently causes deformation and cracking of the HEPA ring, hindering product yield. Moreover, the rough surface of conventional mold vibratory plates results in a high coefficient of friction with the HEPA ring, further impeding the demolding process and reducing overall production efficiency. Therefore, this device incorporates an ejection mechanism and treats the surface of the vibratory plate. Please refer to [link to relevant documentation]. Figures 1-5 This utility model provides a technical solution: a HEPA ring injection mold for easy and quick demolding, including an upper fixed plate 1, an injection port 2 in the middle of the upper fixed plate 1, a female template 3 fixedly installed on the left side of the upper fixed plate 1 by screws, a male template 4 on the side of the female template 3, a mold foot 5 on the left side of the male template 4, and the mold foot 5 fixedly installed on the lower base plate 6 by pins; the HEPA ring injection mold for easy and quick demolding includes an ejection mechanism and a cooling mechanism, the ejection mechanism includes a male template 4, a male mold core 202 fixedly installed inside the male template 4, a vibrating plate 201 movably installed on the male mold core 202, the surface of the vibrating plate 201 is hard chrome plated, and the thickness of the chrome plating layer is 20-50 micrometers.

[0024] The bottom surface of the vibration plate 201 is the same as the shape of the male mold core 202. Six sets of fixing rods 206 are fixedly installed at the bottom of the vibration plate 201, and a limit plate 207 is fixedly installed at the end of the fixing rod 206.

[0025] The vibrating plate 201 and the male mold core 202 are provided with six sets of ejection holes 203, and six sets of mounting holes 204 are provided between the ejection holes 203. The fixing rod 206 and the limiting plate 207 are located in the mounting holes 204, and a spring 208 is fixedly installed between the limiting plate 207 and the mounting hole 204.

[0026] An ejector base plate 7 is provided between the mold feet 5. An ejector pin 205 is fixedly installed on the ejector base plate 7, and an ejector plate 8 is movably installed on the ejector pin 205.

[0027] The ejector pin 205 has three sets of mounting cavities 2051. The upper end of the mounting cavity 2051 is provided with a stop block 2052, and the lower end of the mounting cavity 2051 is provided with a fixing shaft 2053.

[0028] A spring sheet 1 2054 and a spring sheet 2055 are movably mounted on the fixed shaft 2053. A stop block 2052 is provided between the upper ends of the spring sheet 1 2054 and the spring sheet 2055. A spring 1 2056 is fixedly installed between the spring sheet 1 2054 and the spring sheet 2055.

[0029] The cooling mechanism includes a male template 4, with a water inlet 301 on the side of the male template 4, a vortex cooling pipe inside the male template 4, and a water outlet 302 below the water inlet 301.

[0030] Working principle:

[0031] Plastic raw material is injected into the mold through the injection port 2 in the middle of the upper fixed plate 1. Under the injection pressure, the plastic raw material fills the cavity formed by the male mold core 202 and other components between the female mold plate 3 and the male mold plate 4, and the injection molding process begins. The cooling mechanism comes into play, and the cooling medium, such as water, enters from the water inlet 301 on the side of the male mold plate 4 and flows along the vortex cooling pipes inside the male mold plate 4. During the flow, the cooling medium carries away the heat of the plastic in the cavity, accelerating the cooling and solidification of the HEPA ring. The cooled medium flows out from the water outlet 302, and this cycle is repeated to ensure uniform cooling of the HEPA ring and avoid defects such as deformation caused by uneven cooling. After injection and cooling are completed, the demolding process is started. The ejector plate 7 moves upward, causing the ejector pin 205 to pass upward through the ejector hole 203 on the male mold core 202. At this time, the spring sheet 2054 and the spring sheet 2055 inside the ejector pin 205 are ejected under the action of the spring 2056. Simultaneously, the upward movement of the ejector pin 205 pushes the vibrating plate 201. The limiting plate 207 on the bottom fixing rod 206 of the vibrating plate 201 moves within the mounting hole 204. When the ejector pin 205 continues to push forward, since the diameter of the ejector hole 203 is the same as the diameter of the ejector pin, the vibrating plate 201 is reset under the action of the spring 2056. The chrome plating layer is 20-50 micrometers thick, which is not only hard and wear-resistant, but also has a high surface finish and a low coefficient of friction with the HEPA ring. Under the action of vibration, the adhesion between the HEPA ring and the vibrating plate 201 and the mold cavity surface is effectively broken. With the continuous ejection of the ejector pin 205, the HEPA ring is successfully demolded. Because the bottom surface of the vibration plate 201 fits the shape of the male mold core 202, the vibration can be evenly transmitted to the HEPA ring, ensuring that the HEPA ring is subjected to uniform force, avoiding deformation, cracking and other damage during demolding, and improving the product qualification rate.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A hypalon ring injection mold facilitating quick demolding, comprising an upper fixed plate (1), characterized in that: The middle of the upper fixed plate (1) is provided with an injection port (2), the left side of the upper fixed plate (1) is fixedly provided with a female mold plate (3) through screws, the side of the female mold plate (3) is provided with a male mold plate (4), the left side of the male mold plate (4) is provided with a mold foot (5), and the mold foot (5) is fixedly installed on a lower bottom plate (6) through a pin. The Heparin circle injection mold convenient for rapid demolding comprises an ejection mechanism and a cooling mechanism, the ejection mechanism comprises a male mold plate (4), the male mold plate (4) is fixedly provided with a male mold core (202) inside, and a vibrating plate (201) is movably installed on the male mold core (202); the vibrating plate (201) is subjected to hard chromium plating treatment on the surface, and the thickness of the chromium plating layer is 20-50 microns.

2. A hiplark injection mold facilitating quick mold release according to claim 1, wherein: The bottom surface shape of the vibrating plate (201) is consistent with the shape of the male mold core (202), six groups of fixed rods (206) are fixedly installed on the bottom of the vibrating plate (201), and the tail ends of the fixed rods (206) are fixedly provided with limit plates (207).

3. A hiplark injection mold facilitating quick mold release according to claim 2, wherein: Six groups of ejection holes (203) are arranged on the vibrating plate (201) and the male mold core (202), six groups of mounting holes (204) are arranged between the ejection holes (203), the fixed rods (206) and the limit plates (207) are arranged in the mounting holes (204), and spring No. 2 (208) is fixedly installed between the limit plates (207) and the mounting holes (204).

4. The hypalon tube injection mold of claim 3, wherein: A pin bottom plate (7) is arranged between the mold feet (5), a pin (205) is fixedly installed on the pin bottom plate (7), and a pin panel (8) is movably installed on the pin (205).

5. A hiplark injection mold facilitating quick mold release according to claim 4, wherein: Three groups of mounting cavities (2051) are arranged in the pin (205), a stop block (2052) is arranged at the upper end of the mounting cavity (2051), and a fixed shaft (2053) is arranged at the lower end of the mounting cavity (2051).

6. A hiplark injection mold facilitating quick mold release according to claim 5, wherein: Spring No. 1 (2054) and spring No. 2 (2055) are movably installed on the fixed shaft (2053), the upper ends of the spring No. 1 (2054) and the spring No. 2 (2055) are arranged between the stop blocks (2052), and spring No. 1 (2056) is fixedly installed between the spring No. 1 (2054) and the spring No. 2 (2055).

7. A hiplark injection mold facilitating quick mold release according to claim 6, wherein: The cooling mechanism comprises a male mold plate (4), a water inlet (301) is arranged on the side of the male mold plate (4), a vortex-shaped cooling pipeline is arranged in the male mold plate (4), and a water outlet (302) is arranged below the water inlet (301).

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