A double-layer water channel structure for an insulating layer injection mold and its usage method

Abstract

This invention discloses a dual-layer water channel structure and its usage method for injection molds used for insulating layers. It includes a heat supply module, a cold supply module, a mold forming cavity, a mold chamber, an injection port, a high-temperature water channel, a low-temperature water channel, and a glue inlet channel connected to them. The high-temperature water channel has multiple channels, and the low-temperature water channel also has multiple channels. The mold forming cavity is multi-segmented. The high-temperature and low-temperature water channels are sequentially and alternately arranged within the mold. Each water channel has a separate inlet and outlet. This invention increases the flow rate during injection molding through the dual-channel design, accelerating the filling process and slowing down the solidification rate, resulting in an extremely thin final injection molded product. Rapid cooling after injection molding improves the yield rate, and the multi-channel water channel design enables precise temperature control within a small area of ​​the mold.

Description

Technical Field

[0001] This invention relates to the field of injection molding, and in particular to a double-layer water channel structure for an injection mold for an insulating layer. Background Technology

[0002] In modern manufacturing, injection molding is widely used in industries such as electronics, electrical engineering, and automobiles due to its high efficiency and precision, playing a particularly important role in the production of insulating materials. However, current injection molds still have significant shortcomings in temperature control, cooling systems, and gas venting, which negatively impact the molding quality and performance of the products.

[0003] First, traditional injection molds typically employ a single water channel design, making effective thermal management difficult. Temperature uniformity of the mold is crucial during the injection molding process. Uneven mold temperature can lead to poor material flow, resulting in flow marks, bubbles, or other defects, which is particularly evident in the manufacture of highly complex and precision insulating products. For example, when the mold temperature is too high, the material may solidify too quickly, leading to poor molding; conversely, too low a temperature may prevent the material from flowing sufficiently, affecting the molding result.

[0004] Secondly, existing technologies do not adequately prioritize cooling efficiency. Traditional mold cooling systems are often simply designed with slow cooling rates, making it difficult to meet the demands of high-volume production. This not only prolongs the production cycle but also increases energy consumption, leading to low production efficiency. Furthermore, mold cooling systems lack flexibility, making it difficult to adjust them according to the requirements of different materials and products, resulting in resource waste and increased production costs.

[0005] Furthermore, existing technologies are relatively weak in air removal. During injection molding, air cannot be effectively expelled from the mold cavity, easily forming bubbles. This not only affects the product's appearance but may also reduce its electrical insulation properties. The presence of bubbles can compromise the integrity of the insulation layer, affecting the product's long-term reliability. Therefore, improving the mold's air removal capability is crucial for improving molding quality, but current designs do not address this issue sufficiently.

[0006] Finally, the high-temperature resistance and corrosion resistance of mold materials are also a major shortcoming in existing technologies. Because injection molding involves high-temperature and high-pressure operations, mold materials must possess excellent heat and corrosion resistance to ensure the stability of the mold during long-term use. However, many existing molds are inadequate in this regard, easily exhibiting wear and deformation, further impacting production efficiency and product quality.

[0007] In summary, traditional injection molds have significant shortcomings in terms of temperature control, cooling efficiency, air removal, and material properties. These issues urgently need to be addressed by the industry to promote the further development of injection molding technology. Summary of the Invention

[0008] The purpose of this invention is to provide a double-layer water channel structure for injection molds of insulating layers, so as to solve the problems mentioned in the background art.

[0009] This invention is achieved through the following technical solution:

[0010] On one hand, the present invention provides a double-layer water channel structure for an insulating layer injection mold, including a heat supply module, a cold supply module, a mold forming cavity, a mold chamber, an injection port, a high-temperature water channel, a low-temperature water channel, and a glue inlet channel connected thereto.

[0011] The mold forming cavity is disposed inside the mold cavity;

[0012] The mold forming cavity is used to limit the shape of the overlay layer, and the mold forming cavity is connected to the glue inlet channel through the injection port;

[0013] The high-temperature water circuit connects the heat supply module to the mold cavity;

[0014] The low-temperature water circuit connects the cold supply module to the mold cavity.

[0015] The heat supply module is used to heat the fluid to be flowed through the mold to the required temperature;

[0016] The cold supply module is used to cool the fluid that is about to flow through the mold cavity;

[0017] The injection channel is used to allow the injection fluid to enter the mold through the injection port.

[0018] The high-temperature water circuit has multiple channels to heat different areas of the mold cavity; by setting different water flow paths, different positions in the mold cavity can be heated, resulting in more uniform heating.

[0019] The low-temperature water circuit has multiple channels; by setting different water flow paths, different positions in the mold cavity can be cooled, resulting in more uniform cooling.

[0020] The mold forming cavity is designed to be multi-segmented; by designing the mold forming cavity to be multi-segmented, it is possible to cool or heat different parts of the stator core separately, making the internal temperature of the mold more stable.

[0021] It also includes a temperature regulation module, which includes an adjustable heating plate and a temperature control device. The adjustable heating plate is fixed to the inner surface of the mold cavity by bolts, and the temperature control device is located outside the mold cavity. The adjustable heating plate and the temperature control device communicate with each other, and the temperature control device can adjust different temperature control parameters of the adjustable heating plate to accurately regulate the temperature of the mold.

[0022] The adjustable heating plate can be directly fixed inside the mold in the form of a heating plate. The heating plates are also spaced apart with corresponding thermocouples to adjust the temperature of different positions in the mold cavity individually, so as to meet various injection molding requirements.

[0023] It also includes a replaceable cooling module, which is fixed to the mold cavity by a slot and is used to cool the mold forming cavity according to cooling requirements.

[0024] The replaceable cooling module can be installed or removed at any stage of the injection molding process according to cooling requirements, in order to avoid the negative impact of the heating process on the cooling process during the injection molding process. That is, the heating process will heat the installed cooling module, which will slow down the subsequent cooling speed.

[0025] It also includes a vacuum assist module, which is connected to the mold forming cavity via a pipe and is used to remove air from the cavity during the injection molding process.

[0026] The mold cavity is equipped with a flow guiding structure; the flow guiding structure changes the flow direction of high-temperature or low-temperature water to make it heat or dissipate heat evenly throughout the mold cavity. The flow guiding plate inside the flow guiding structure adopts a heat insulation plate design, and the surface is provided with flow guiding texture to facilitate the formation of vortices and make the fluid flow direction uniform.

[0027] On the other hand, the present invention provides a double-layer water circuit method using an insulating layer injection mold, comprising the following steps: installing and fixing the stator core in the mold forming cavity; turning on the high-temperature water circuit module, allowing hot water to enter the mold and increase the mold temperature; starting injection molding; ending injection molding and turning on the low-temperature water circuit.

[0028] Specifically, it includes the following steps:

[0029] Based on temperature requirements, S1 installs and fixes the stator core inside the mold forming cavity;

[0030] S2 activates the high-temperature water circuit based on temperature requirements;

[0031] S3 activates the vacuum assist module to expel air from the cavity;

[0032] S4 is based on the overmolding process. After the mold temperature is suitable, injection molding begins.

[0033] Based on the mold cooling process requirements, after injection molding, the S5 activates the low-temperature water circuit; cold water enters the mold cavity for cooling.

[0034] After the insulation layer has fully cured, open the mold and remove the molded product.

[0035] Before injection molding, the vacuum assist module is turned on to remove air from the cavity.

[0036] After the insulation layer has fully cured, open the mold and remove the molded product.

[0037] On the other hand, the present invention provides a double-layer water channel method using an insulating layer injection mold, comprising the following steps:

[0038] Install and fix the stator core in the mold forming cavity; turn on the high-temperature water circuit module, hot water enters the mold, and increases the mold temperature; start injection molding; end injection molding and turn on the low-temperature water circuit.

[0039] Specifically, it includes the following steps:

[0040] Based on temperature requirements, S1 installs and fixes the stator core inside the mold forming cavity;

[0041] S2 activates the high-temperature water circuit based on temperature requirements;

[0042] S3 activates the vacuum assist module to expel air from the cavity;

[0043] S4 is based on the overmolding process. After the mold temperature reaches the predetermined temperature, injection molding begins.

[0044] Based on the mold cooling process requirements, the S5 activates the low-temperature water circuit after injection molding; cold water enters the mold cavity for cooling, and a replaceable cooling module is installed to provide auxiliary cooling for the mold.

[0045] After the insulation layer has fully cured, open the mold and remove the molded product, and remove the replaceable cooling module.

[0046] Beneficial effects of this invention:

[0047] By setting up a heat supply module, a cold supply module, a mold forming cavity, a mold chamber, a high-temperature water channel, a low-temperature water channel, and a glue inlet channel connected to them in the injection molding mold of the insulating layer, the high-temperature water channel and the low-temperature water channel form a loop in the mold chamber. Compared with the existing technology, by setting up a high-temperature water channel and a low-temperature water channel to form a loop in the mold chamber, the mold temperature is maintained within a specified range through heat exchange. Thus, the purpose of controlling the cooling rate and controlling the mold temperature can be achieved through water channel design.

[0048] By setting up high-temperature and low-temperature water channels, the temperature inside the mold cavity can be kept uniform and the cooling can be uniform. The temperature inside the mold can be precisely controlled to ensure the quality of the coating layer. Furthermore, the water channel layout with a double layer improves the overall utilization rate and heat exchange efficiency of the water channels, enabling rapid heating and cooling, and reducing energy consumption.

[0049] By using independent heat supply and cold supply modules within the injection molding mold for the insulating layer, compared to existing technologies, the pipeline-type design can precisely provide the heat required by the mold; at the same time, the independent control of the two modules enables precise control of the mold temperature.

[0050] By setting up multi-segment channels in the mold forming cavity and using the staggered and adjacent gaps between channels to control the fluid direction, the influence of fluid flow rate changes on temperature control can be effectively reduced. Furthermore, by setting the mold forming cavity to be multi-segment, individual cooling or heating of different positions of the stator core can be achieved, making the internal temperature of the mold more stable.

[0051] The heating adjustment module includes an adjustable heating plate and a temperature control device. Compared with the prior art, it can heat the fluid flowing through the mold to the required temperature. At the same time, the adjustable heating plate contacts the surface of the mold cavity through the temperature control device. According to different mold temperature requirements, the temperature control parameters can be adjusted to heat or cool the fluid flowing through the mold cavity, so as to realize injection molding for different overmolding layer process requirements.

[0052] The heating adjustment module is equipped with an adjustable heating plate, which can be directly fixed inside the mold in the form of a heating plate. The heating plates are also spaced apart with corresponding thermocouples to adjust the temperature of different positions in the mold cavity individually to meet various injection molding requirements. When the insulation layer is injected, the heating plate heats the stator core, so that the surface temperature of the stator core is higher than the melting point of the overlay layer (170°C), which facilitates the subsequent molding and demolding of the overlay layer.

[0053] By setting a low-temperature water channel in the injection molding mold of the insulation layer, compared with the existing technology, the fluid flowing through the mold cavity can be cooled. The low-temperature water channel is divided into multiple sections to cool different areas of the mold cavity. By adjusting the cooling rate of the fluid flowing through the mold cavity, the cooling rate of different parts of the mold cavity can be controlled individually, thereby ensuring that the molded insulation layer meets the corresponding process requirements.

[0054] By setting the molding cavity of the mold with multi-segment channels, the mold can ensure that the fluid in the overmolding cavity can cool the entire molding cavity, and can also adjust different positions individually to further improve the cooling effect of the molding cavity.

[0055] By setting a flow guiding structure in the mold forming cavity, the overall temperature can be controlled by utilizing the flow direction of high-temperature and low-temperature water, and the flow guiding structure can make the temperature uniform throughout the mold cavity.

[0056] By setting up a flow guiding structure in the mold cavity, hot water flows through the inner surface of the mold forming cavity during the injection molding process, while cooling water is used on the outer surface for heat dissipation. This ensures that the insulation layer is heated rapidly while the covering material is not damaged. At the same time, the cooling rate and temperature of the inner and outer sides of the overlay layer can be controlled to ensure uniform forming of the hollow structure of the insulation layer and improve the quality of the parts. In addition, the use of multi-layer cooling makes the thermal conductivity and forming cavity structure more uniform, which can effectively avoid the deformation of parts caused by thermal cycling, significantly improve cooling efficiency, and reduce energy consumption.

[0057] By tightly integrating the flow guide structure with the mold structure within the mold forming cavity, the impact of fluid flow rate variations on temperature control can be effectively reduced. For example, by setting a flow guide structure within the cooling channel, the flow guide structure alters the shape of the channel, allowing high-temperature or low-temperature water to flow evenly within the mold forming cavity, effectively reducing the impact of fluid flow rate variations on temperature control.

[0058] By tightly integrating the flow guide structure with the injection channel inside the mold forming cavity, it ensures both smooth injection and uniform heat conduction.

[0059] By setting flow-guiding patterns in the flow-guiding structure, vortices can be formed inside the injection cavity between the hot and cold fluids, which can improve the heat exchange efficiency of the hot and cold fluids. In addition, the flow-guiding plate adopts a heat insulation plate design, which can effectively reduce the temperature of the cold fluid while ensuring the molding of the insulation layer.

[0060] The insulating layer forming cavity is provided with a multi-segment channel. The fluid direction is controlled by the staggered and adjacent gaps of the channel, which can effectively reduce the impact of fluid flow rate changes on temperature control.

[0061] By setting up multi-segment channels, cooling water enters multiple separate channels in the forming cavity, which can achieve cooling of different areas of the entire forming cavity, avoiding the influence of temperature difference on the forming effect. The segmented setting can better cool the outside of the formed iron core, thereby making the thickness of the insulation layer uniform. During the circulation process, the cooling water passes through the heat conduction plate, and the temperature gradually increases, transferring heat to the cooling water and the stator iron core. At the same time, the temperature is monitored and controlled through the heat conduction plate.

[0062] By integrating a temperature control module with the injection molding cavity of the insulation layer, precise control of the temperature of the injection molding mold of the insulation layer can be achieved. The temperature control module controls the rate of temperature rise and fall of the mold to achieve the water cooling process of the insulation layer, thereby improving the molding efficiency of the mold. By setting the temperature control module, workers can easily control the temperature of the insulation layer molding mold in real time to adapt to different insulation layer cooling requirements.

[0063] By setting the mold forming cavity to a multi-segment design and setting a temperature control module to regulate the temperature of the insulation layer, uniform and rapid cooling can be achieved after the coating is completed, allowing the insulation layer to reach the specified curing speed. At the same time, by setting a cooling module, cooling can be performed before the coating layer is fully formed, avoiding deformation or damage to the coating layer after it is formed. Attached Figure Description

[0064] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0065] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0066] Figure 1 This is a schematic diagram of a double-layer water channel structure for an injection mold for an insulating layer, provided by an embodiment of the present invention.

[0067] Figure 2 A schematic diagram of a double-layer water channel structure for an insulating layer injection mold, including low-temperature and high-temperature water channels, is provided for an embodiment of the present invention.

[0068] Figure 3 This is a schematic diagram of a double-layer water channel structure injection port and mold forming cavity for an insulating layer injection mold provided in an embodiment of the present invention. Detailed Implementation

[0069] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0070] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the shape, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0071] In the description of the invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0072] See Figure 1 The present invention provides a double-layer water channel structure for an insulating layer injection mold. A schematic diagram of a double-layer water channel structure for an insulating layer injection mold includes the following components: a heat supply module 1, a cold supply module 2, a mold forming cavity 3, a mold chamber 4, an injection port 5, a high-temperature water channel 6, a low-temperature water channel 7, and a glue inlet channel 8.

[0073] The mold forming cavity 3 is located inside the mold cavity 4;

[0074] The mold forming cavity 3 is used to restrict the shape of the overlay layer, and the mold forming cavity 3 is connected to the glue inlet channel 8 through the injection port 5;

[0075] The high-temperature water circuit 6 connects the heat supply module 1 to the mold cavity 4;

[0076] The low-temperature water circuit 7 connects the cold supply module 2 to the mold chamber 4.

[0077] By setting two sets of water channels on the mold, the mold cavity 4 can be cooled or preheated at the same time, improving work efficiency. The specific number of double layers can be flexibly set according to the usage requirements.

[0078] This dual-layer water channel structure enables simultaneous preheating or cooling of the mold. Depending on the process requirements, the mold can be cooled or preheated to ensure that the molding cavity reaches the expected temperature, thereby producing qualified overmolding and improving production efficiency.

[0079] The high-temperature water circuit 6 has multiple channels, and the low-temperature water circuit 7 has multiple channels.

[0080] To ensure uniform preheating or cooling of the mold, both the high-temperature water channel 6 and the low-temperature water channel 7 adopt a multi-channel design. By setting multiple channels, the mold can be preheated or cooled uniformly at the same time, thereby improving the forming effect of the mold and ensuring that the coating quality is up to standard.

[0081] The mold forming cavity 3 is designed to be multi-segmented.

[0082] In a specific embodiment, by setting a multi-segment mold forming cavity 3, the overmolding layer is divided into three small segments, namely segment A, segment B and segment C, which are used to form overmolding layers of different lengths L1, L2 and L3 respectively, thereby meeting the process requirements of segmented injection molding of the insulation layer. At the same time, the number of injection ports 5 and glue inlet channels 8 can be flexibly set according to the requirements.

[0083] A, B, and C represent three different injection ports. When only one section needs to be molded, port A is used for injection. When two sections of rubber coating need to be laminated within the mold cavity, ports AB are selected for injection. When three sections of rubber coating need to be laminated within the mold cavity, ports ABC can be selected for injection.

[0084] The structure of this invention can meet the requirements of three typical overmolding injection molding methods and is applicable to the existing injection molding process of insulating layers. Different water channel structures are set at different positions in the mold cavity 4 to form overmolding layers of different lengths, which meets the current production needs. It can realize the process requirements of preheating or cooling the mold cavity 4, and the number of water channels can be flexibly set according to process requirements.

[0085] It also includes a temperature regulation module, which includes an adjustable heating plate and a temperature control device. The adjustable heating plate is fixed to the inner surface of the mold cavity 4 by bolts, and the temperature control device is located outside the mold cavity 4. The adjustable heating plate and the temperature control device communicate with each other.

[0086] Considering that different coating layers require different temperatures and need to be held under pressure at the same temperature, a temperature adjustment module is set up to facilitate temperature adjustment of the mold cavity 4 as needed, thereby forming coating layers at different temperatures.

[0087] An adjustable heating plate covers the surface of the mold cavity 4. The heating plate is made of high-temperature resistant material, which makes it easy to set different temperatures according to the requirements of the injection molding overlay layer. This allows for the rational use of temperature and heat energy, thereby effectively improving the efficiency of the injection mold.

[0088] It can accept commands from the temperature control system and adjust the temperature quickly and accurately as needed. When the temperature is too high, it supplies high-temperature hot water to the chamber; when the temperature is too low, it supplies low-temperature hot water to the mold cavity.

[0089] Multiple adjustable heating plates can also be set, and each heating plate has a different temperature adjustment range, thereby improving the applicability of the mold and the versatility of the invention.

[0090] It also includes a replaceable cooling module, which is fixed in the mold cavity 4 by a slot. The replaceable cooling module is used to assist in cooling the mold forming cavity 3 during the injection molding process according to the cooling requirements.

[0091] Different coating layers have different cooling requirements. By setting up a replaceable cooling module, the cooling module can be quickly replaced according to actual needs, which improves the applicability of the mold and enhances the versatility of the invention.

[0092] It also includes a vacuum assist module, which is connected to the mold forming cavity 3 via a pipe and is used to remove air from the cavity during the injection molding process.

[0093] By setting up a vacuum-assisted module, air in the mold cavity can be effectively expelled, reducing quality and product defects caused by air during injection molding, thereby improving production efficiency.

[0094] The mold cavity 4 is equipped with a flow guiding structure.

[0095] In some embodiments of the present invention, by setting a flow guiding structure, deformation of the mold forming can be prevented. During the forming of the overlay layer, the flow guiding structure can guide the injected rubber material to flow through a certain path, so that the cooling and holding pressure time of each area of ​​the overlay layer is consistent, and the defects of the overlay layer in different areas are reduced.

[0096] A method for creating a double-layer water channel using an insulating layer injection mold includes the following steps:

[0097] Install and fix the stator core inside the mold forming cavity 3;

[0098] Activate the high-temperature water circuit module 6 to allow hot water to enter the mold and increase its temperature;

[0099] Activate the vacuum assist module to remove air from the mold cavity;

[0100] Injection molding begins;

[0101] End the injection molding process and turn on the low-temperature water circuit 7 to quickly reduce the mold temperature;

[0102] After the insulation layer has fully cured, open the mold and remove the molded product.

[0103] The high-temperature water channel 6 has multiple channels, and the low-temperature water channel 7 has multiple channels. To ensure the uniformity of mold preheating or cooling, both the high-temperature water channel 6 and the low-temperature water channel 7 adopt a multi-channel design. By setting multiple channels, the mold can be preheated or cooled uniformly at the same time, thereby improving the forming effect of the mold and meeting the needs of overmolding processes of different lengths and thicknesses, thus improving the quality pass rate of overmolding.

[0104] In a specific embodiment, A, B, and C represent different injection ports. When only one section needs to be molded, only port A is used for injection. When two sections of adhesive layers need to be laminated in the mold cavity, ports AB are selected for injection. When three sections of adhesive layers need to be laminated in the mold cavity, ports ABC can be selected for injection.

[0105] In a specific embodiment, if the mold is a three-section mold forming cavity 3, then Figure 1 The lengths of the coating layers shown are 1L1, 1L2, and 1L3, respectively, and the minimum width of the coating layer is not less than the minimum width of the mold forming cavity 3.

[0106] like Figure 1 As shown, the contact structure between the high-temperature water channel 6 and the low-temperature water channel 7 and the mold cavity 4 can be annular or semi-annular, enclosing the mold forming cavity 3, thereby allowing for better heating or cooling of the mold. If a full annular design is adopted, the mold can be heated or cooled more quickly and evenly.

[0107] Using the method of this invention, the number of high-temperature water channels 6 and low-temperature water channels 7 can be flexibly controlled according to the needs of the process, thereby achieving the effect of preheating or cooling the mold. It also has a high utilization rate of heat energy, meets the process requirements of various different coating layer lengths, and has strong versatility and operability.

[0108] Based on the dual-waterway structure, this invention employs an adjustable heating plate and a replaceable cooling module to form a coating layer at different temperatures within the mold cavity according to process requirements, thereby improving the usability of the mold and the versatility of the invention.

[0109] Based on the dual-waterway structure, this invention, by setting up a vacuum-assisted module, can solve the defects existing in the mold injection process, reduce the quality defects caused by air bubbles or pores in the overlay layer, and thus improve the production efficiency of the product.

[0110] In one specific embodiment, a double-layer water channel structure for an insulating layer injection mold includes a heat supply module 1, a cold supply module 2, a mold forming cavity 3, a mold chamber 4, a high-temperature water channel 6, a low-temperature water channel 7, and a vacuum auxiliary module.

[0111] S0 activates the vacuum assist module to ensure that air in the cavity is effectively removed, reducing the risk of air bubble formation.

[0112] S1 installs the stator core in the mold forming cavity 3 and uses a fixing device to ensure its stability;

[0113] S2 activates the high-temperature water circuit 6 module, which delivers hot water to the mold cavity 4 through the high-temperature water circuit 6. The water temperature is set to 150℃ to ensure that the plastic material in the mold has good fluidity during injection molding.

[0114] After the mold reaches the set temperature, the injection molding machine is turned on and the injectable fluid is injected into the mold cavity 3 through the injection channel 8. The injection process lasts for about 30 seconds to ensure that the material fully fills the mold.

[0115] After the S4 injection molding is completed, the cold supply module 2 is immediately turned on, and the coolant is delivered to the mold cavity 4 through the low temperature water channel 7. The water temperature is set to 10℃ to promote the rapid curing of the molding material.

[0116] S5 maintains the operation of the low-temperature water channel 7, continuously cooling the mold for about 2 minutes to ensure that the insulation layer is completely cured;

[0117] After the insulation layer has fully cured, turn off the cooling system, open the mold, and check the appearance and performance of the finished product to ensure that there are no bubbles or defects.

[0118] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

[0119] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

Claims

1. A double-layer water channel structure for an injection mold of an insulating layer, characterized in that, This includes a heat supply module, a cold supply module, a mold forming cavity, a mold chamber, an injection port, a high-temperature water channel, a low-temperature water channel, and a glue inlet channel connected to them; The mold forming cavity is disposed inside the mold cavity; The mold forming cavity is used to limit the shape of the overlay layer, and the mold forming cavity is connected to the glue inlet channel through the injection port; The mold forming cavity is designed to be multi-segmented, forming overlay layers of different lengths, thus meeting the process requirements of segmented injection molding of the insulation layer. The high-temperature water circuit connects the heat supply module to the mold cavity; The low-temperature water circuit connects the cold supply module to the mold cavity; It also includes a replaceable cooling module, which is fixed to the mold cavity via a slot. The replaceable cooling module is used to cool the mold forming cavity according to cooling requirements. It also includes a temperature regulation module, which includes an adjustable heating plate and a temperature control device. The adjustable heating plate is fixed to the internal surface of the mold cavity by bolts, and the temperature control device is located outside the mold cavity. The adjustable heating plate and the temperature control device communicate with each other. Considering that different coating layers require different temperatures and need to be held under pressure at the same temperature, the temperature regulation module facilitates the adjustment of the mold cavity temperature as needed, thereby forming coating layers at different temperatures.

2. The double-layer water channel structure for an insulating layer injection mold according to claim 1, characterized in that, The high-temperature water circuit has multiple channels, and the low-temperature water circuit has multiple channels.

3. The double-layer water channel structure for an insulating layer injection mold according to claim 1, characterized in that, It also includes a vacuum assist module, which is connected to the mold forming cavity via a pipe and is used to remove air from the cavity during the injection molding process.

4. A double-layer water channel structure for an insulating layer injection mold according to claim 1, characterized in that, The mold cavity is equipped with a flow guiding structure.

5. A method for creating a double-layer water channel using an injection mold with an insulating layer, characterized in that, The insulating layer injection mold includes the double-layer water channel structure as described in any one of claims 1-4, and the method includes the following steps: Install and fix the stator core inside the mold forming cavity; Turn on the high-temperature water circuit; Activate the vacuum assist module to remove air from the mold cavity; After the mold reaches the preset temperature, injection molding begins; After injection molding is completed, the low-temperature water circuit is turned on, and cold water enters the mold cavity for cooling. A replaceable cooling module is installed to assist in cooling the mold. After the insulation layer has fully cured, open the mold and remove the molded product, and remove the replaceable cooling module.

6. A double-layer water channel method using an insulating layer injection mold according to claim 5, characterized in that, Before injection molding, the vacuum assist module is turned on to remove air from the cavity.

7. A double-layer water channel method using an insulating layer injection mold according to claim 5, characterized in that, After the insulation layer has fully cured, open the mold and remove the molded product.

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