Spraying-free panel mold for switch socket

Abstract

The utility model relates to the technical field of spraying-free dies, in particular to a switch socket spraying-free panel die, which comprises a forming unit, a first half-face die body cavity, a second half-face die body cavity, a third half-face die body cavity, a fourth half-face die body cavity, a fourth half-face die body cavity and a fourth half-face die body cavity. A plurality of first half-face mold body cavities are formed in the fixed mold core, a plurality of channels are formed in the peripheries of the first half-face mold body cavities, jaw openings are formed in the four corners of the fixed mold core and correspond to the grooves, a plurality of second half-face mold body cavities are formed in the fixed mold core, and the first half-face mold body cavities and the second half-face mold body cavities jointly form panel body cavities. An injection molding opening and an injection molding flow guide groove are formed between the first half-face mold body cavities and the second half-face mold body cavities; the temperature control unit comprises a cooling part and a constant temperature part; the ejection unit comprises an ejection bottom plate and an ejection part, the temperature difference between the movable mold core and the static mold core is reduced through the arrangement of the constant temperature part, and the mold closing precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of paint-free mold technology, and more specifically, to a paint-free panel mold for switch sockets. Background Technology

[0002] In traditional plastic mold manufacturing, spraying is often required to improve the appearance and functionality of products to meet specific design requirements. While spraying improves the aesthetics and wear resistance of the product surface, it also has many drawbacks, such as material waste, inefficiency due to manual operation, and the generation of harmful substances during the process. The paint-free process, however, considers the final appearance of the product during the mold design and manufacturing stages, using special mold surface treatment technologies and materials to ensure that the produced plastic products directly meet the preset appearance standards, thus avoiding the need for subsequent spraying. However, existing paint-free processes cannot guarantee a uniform mold temperature during injection molding. Different temperatures result in different coefficients of thermal expansion of the mold material, causing changes in the clearance between the guide pillars and guide sleeves. When the mold temperature is high, the clearance increases due to thermal expansion, and decreases when the temperature is low. This temperature-induced difference in concentricity directly affects the mold's closing accuracy.

[0003] Therefore, there is an urgent need for a paint-free panel mold for switches and sockets to solve the problems existing in the current technology. Utility Model Content

[0004] In view of this, this utility model proposes a paint-free panel mold for switches and sockets, aiming to solve the problem of poor mold closing accuracy during injection molding of existing paint-free molds.

[0005] This utility model provides a paint-free panel mold for switches and sockets, comprising:

[0006] The molding unit includes a mold core, which includes a moving mold core and a stationary mold core. The moving mold core has grooves at its four corners and a plurality of first half-mold body cavities in the middle. The plurality of first half-mold body cavities are surrounded by a plurality of channels. The stationary mold core has tiger-mouths at its four corners, which correspond to the grooves. The stationary mold core has a plurality of second half-mold body cavities. The first half-mold body cavities and the second half-mold body cavities together constitute a panel body cavity. An injection port and an injection guide groove are provided between the plurality of first half-mold body cavities and the plurality of second half-mold body cavities.

[0007] The temperature control unit includes a cooling section and a constant temperature section, which are interspersed on the back of several mold body cavities;

[0008] The ejection unit includes an ejection base plate and an ejection part, wherein the ejection part is disposed on the ejection base plate and the ejection part cooperates with a plurality of channels for ejecting the mold body.

[0009] Furthermore, the stationary mold core also includes a heat-conducting groove, which is disposed on the back side of the cavity of the second half mold body, and the temperature control unit is disposed between the upper mold frame and the stationary mold core.

[0010] Furthermore, the moving mold core also includes a third through hole, and a plurality of third through holes are provided in the middle of the moving mold core, and the plurality of third through holes correspond to the channel.

[0011] Furthermore, the ejector portion includes an ejector pin and a mounting platform. The top of the ejector pin is connected to the mounting platform, and the mounting platform has sealing glue on three sides. The mounting platform has grooves on three sides below, and the grooves have a depth of 0.05 mm.

[0012] Furthermore, it also includes a positioning unit, which includes a guide post, a guide sleeve, and a positioning slot. One end of the guide post is connected to the positioning slot, and the guide post is sleeved on the other end of the guide sleeve. The guide sleeve is inserted into the positioning slot, and the positioning slot is set on the mold frame.

[0013] Furthermore, the cooling section includes a first cooling pipe, and the upper mold frame is provided with first cooling pipes on both sides.

[0014] Furthermore, the constant temperature section includes a constant temperature block and a first constant temperature tube. The first constant temperature tube is disposed on the back side of the stationary mold core and is connected to the constant temperature block. The constant temperature block is disposed on the heat conduction groove.

[0015] Furthermore, the constant temperature section also includes a second constant temperature tube, which is respectively disposed between the upper mold frame and the stationary mold core and between the lower mold frame and the moving mold core.

[0016] Furthermore, the cooling section also includes a second cooling pipe, which is respectively disposed between the upper mold frame and the stationary mold core and between the lower mold frame and the moving mold core.

[0017] Furthermore, a beryllium copper insert is provided at the injection port.

[0018] Compared with existing technologies, the beneficial effects of this invention are as follows: By setting constant temperature sections on both the moving and stationary mold cores, the temperature of the moving mold core is increased, ensuring it is close to that of the stationary mold core. This guarantees the concentricity of the guide pillars, improves mold closing accuracy, and reduces inconsistent thermal expansion caused by temperature differences. It ensures that the moving and stationary mold cores maintain consistent deformation during injection molding, thus avoiding misalignment and jamming during mold closing, and improving production efficiency and product consistency. Simultaneously, by creating a reverse-shaped "tiger mouth" (or "tiger mouth") on the stationary mold core and providing corresponding grooves on the moving mold core, it prevents excessive mold expansion due to the high temperature of the stationary mold core, which could lead to cracking of the "tiger mouth." By utilizing the temperature advantage of the stationary mold core relative to the moving mold core, the expansion pressure is more evenly distributed around the "tiger mouth," rather than concentrated in one area. Even under high-temperature conditions, the "tiger mouth" will not crack or be damaged due to uneven stress, thus extending the mold's service life and reducing maintenance costs. The moving and stationary mold cores are cooled by water or oil, with the mold temperature regulated by circulating coolant. Furthermore, the thermostatic unit ensures that the coolant evenly covers the entire mold surface, preventing localized overheating or insufficient cooling, thereby controlling the overall mold temperature, reducing uneven thermal stress distribution caused by temperature changes, and further improving mold closing stability. Attached Figure Description

[0019] Figure 1 An overall structural diagram of the paint-free panel mold for the switch and socket provided in this embodiment of the utility model;

[0020] Figure 2 This is a structural diagram of the moving mold core in the paint-free panel mold for switches and sockets provided in this embodiment of the utility model.

[0021] Figure 3 A structural diagram of the stationary mold core in the paint-free panel mold for switches and sockets provided in this embodiment of the utility model;

[0022] Figure 4 This is a structural diagram of the ejector portion in the paint-free panel mold for a switch and socket provided in an embodiment of the present invention.

[0023] Figure 5 This is a structural diagram of the lower mold frame in the paint-free panel mold for switches and sockets provided in this embodiment of the utility model.

[0024] Figure 6 A structural diagram of the back of the stationary mold core in the paint-free panel mold for the switch and socket provided in this embodiment of the utility model;

[0025] Figure 7 A schematic diagram showing the position of the third through hole on the moving mold core in the switch and socket paint-free panel mold provided in this embodiment of the utility model.

[0026] The components include: 1. Molding unit; 110. Moving mold core; 111. Groove; 112. First half-mold body cavity; 113. Channel; 114. Third through hole; 120. Stationary mold core; 121. Grip; 122. Second half-mold body cavity; 123. Injection port; 124. Injection guide groove; 125. Heat conduction groove; 131. Upper mold base; 132. Lower mold base; 211. First cooling pipe; 212. Second cooling pipe; 222. Constant temperature block; 223. First constant temperature pipe; 224. Second constant temperature pipe; 310. Ejector base plate; 321. Ejector pin; 322. Hanging platform; 323. Groove; 4. Positioning unit; 410. Guide post; 420. Guide sleeve; 430. Positioning slot hole; 5. Beryllium copper insert. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "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 this application 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 this application.

[0029] The terms "first" and "second" 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 one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] See Figures 1-3 As shown, this embodiment provides a paint-free panel mold for a switch and socket, including: a molding unit 1, including a mold core, the mold core including a moving mold core 110 and a stationary mold core 120, the moving mold core 110 is provided with grooves 323111 at its four corners, the moving mold core 110 is provided with a plurality of first half-mold body cavities 112 in the middle, the plurality of first half-mold body cavities 112 are provided with a plurality of channels 113 around its perimeter, the stationary mold core 120 is provided with tiger mouths 121 at its four corners, the tiger mouths 121 correspond to the grooves 323111, the stationary mold core 120 is provided with a plurality of second half-mold body cavities 122, the first half-mold body cavities and the second half-mold body cavities together constitute the panel body cavity, the plurality of first half-mold body cavities 112 and the plurality of second half-mold body cavities 122 are provided with an injection port 123 and an injection guide groove 124 in the middle;

[0032] The temperature control unit includes a cooling section and a constant temperature section, which are interspersed on the back of several mold body cavities;

[0033] The ejection unit includes an ejection base plate 310 and an ejection part. The ejection part is disposed on the ejection base plate 310 and cooperates with several channels 113 to eject the mold body.

[0034] Specifically, the mold core is responsible for forming the surface shape of the product. The injection molding device injects the molten plastic into the panel body cavity formed by the moving mold core 110 and the stationary mold core 120. In this embodiment, the stationary mold core 120 has four corners with jaws 121. In traditional injection molds, the jaws 121 are all located on the moving mold core 110. Due to the high temperature of the stationary mold core 120, the mold expansion may be too large, causing the jaws 121 to crack. Therefore, reversing the design of the jaws 121 can avoid the problem of the jaws 121 cracking. At the same time, in order to meet the requirements of... The injection molding process requires precise temperature control of the mold. This is achieved through a temperature control unit with five oil channels in the stationary mold core 120 and two oil channels in the moving mold core 110. This ensures that the actual temperature of each part of the stationary mold core 120 is between 110-115 degrees Celsius, and the temperature of the moving mold core 110 is around 70 degrees Celsius. This solves the problems of weld lines and flow lines on the surface of colored plastic parts. A smooth texture is applied to the surface to improve wear resistance and achieve a paint-free finish. Furthermore, the cooling unit is responsible for cooling the mold, and the ejector unit is responsible for ejecting the mold body.

[0035] Understandably, the mold core is the core part of the entire mold, responsible for forming the surface shape of the product. In traditional injection molds, the structural design of the moving mold core 110 and the stationary mold core 120 is relatively simple, but in the paint-free process, the precision requirements for the mold core are higher. In this embodiment, the mold core includes a moving mold core 110 and a stationary mold core 120. The moving mold core 110 has grooves 323111 at its four corners and several first-half mold body cavities 112 in the middle, with several channels 113 around these cavities. The stationary mold core 120 has jaw openings 121 at its four corners, corresponding to the grooves 323111 on the moving mold core 110. Several second-half mold body cavities 122 are provided on the stationary mold core 120. The first-half mold body cavities 112 and the second-half mold body cavities together constitute a complete panel body cavity. During the injection molding process, the mold temperature is a critical parameter. At different temperatures, the coefficient of thermal expansion of the mold material varies, which can cause changes in the fit clearance between the guide post 410 and the guide sleeve 420, thus affecting the mold closing accuracy. This embodiment addresses this by providing temperature-regulating sections on the moving mold core 110 and the stationary mold core 120 sides. This increases the temperature of the moving mold core 110, ensuring it is close to that of the stationary mold core 120, thereby guaranteeing the concentricity of the guide post 410 and improving mold closing accuracy. Specifically, the grooves 323111 at the four corners of the moving mold core 110 and the tiger's mouth 121 at the four corners of the stationary mold core 120 can disperse the mold expansion pressure, preventing excessive mold expansion due to the high temperature of the stationary mold core 120, and thus preventing the tiger's mouth 121 from cracking.

[0036] The injection port 123 and injection guide channel 124 are crucial for the filling effect and surface quality of plastic products. In this embodiment, the injection port 123 and injection guide channel 124 are provided between several first half mold body cavities 112 and several second half mold body cavities 122 to ensure that molten plastic can be uniformly and quickly filled into the cavities. The injection guide channel 124 can reduce the generation of weld lines and flow marks, improving the surface quality and consistency of the product. The temperature control unit includes a cooling section and a constant temperature section. The cooling section is responsible for cooling the mold, ensuring that the mold can be cooled rapidly during the injection process, thereby shortening the production cycle. The constant temperature section is responsible for maintaining a constant temperature of the mold during the injection process, ensuring that the temperature of each cavity is uniform, thereby improving the mold closing accuracy and the surface quality of the product. By interlacing the cooling section and the constant temperature section on the back of the cavity, precise temperature control can be achieved, avoiding mold closing problems and product quality problems caused by temperature changes.

[0037] Five oil channels are provided on the stationary mold core 120, and two layers of oil channels are provided on the moving mold core 110. This ensures that the actual temperature of each part of the stationary mold core 120 is between 110-115 degrees Celsius, and the temperature of the moving mold core 110 is around 70 degrees Celsius. This temperature gradient not only helps to improve the filling quality and surface quality of the product, but also reduces the thermal stress and deformation of the mold. Specifically, the five oil channels ensure a uniform temperature distribution in the stationary mold core 120, avoiding local overheating or insufficient cooling. The two layers of oil channels allow the moving mold core 110 to maintain a higher temperature while avoiding overheating, thereby ensuring the concentricity of the guide pillar 410 and the guide sleeve 420. By providing temperature-controlled sections on both the moving mold core 110 and the stationary mold core 120, and increasing the temperature of the moving mold core 110 to ensure that its temperature is close to that of the stationary mold core 120, the problem of inconsistent thermal expansion caused by temperature differences can be reduced. Temperature control not only improves the concentricity of the guide pillar 410, but also ensures that the moving mold core 110 and the stationary mold core 120 can maintain consistent deformation during injection molding, thereby avoiding misalignment and jamming during mold closing, improving mold closing accuracy, and enhancing product quality and consistency.

[0038] In traditional injection molds, the "tiger mouth" 121 is located on the moving mold core 110. This is prone to excessive expansion due to the high temperature of the stationary mold core 120, leading to cracking of the "tiger mouth" 121. In this embodiment, the stationary mold core 120 has "tiger mouths" 121 at its four corners, and the moving mold core 110 has grooves 323111 at its four corners. This reverse "tiger mouth" 121 design cleverly utilizes the temperature advantage of the stationary mold core 120 relative to the moving mold core 110, allowing the expansion pressure to be distributed more evenly around the "tiger mouth" 121, rather than concentrated in one area. Thus, even under high-temperature conditions, the "tiger mouth" 121 will not crack or be damaged due to uneven stress, thereby extending the mold's service life, reducing maintenance costs, solving the problem of "tiger mouth" 121 cracking, improving mold stability and reliability, and ensuring smooth production.

[0039] In some embodiments of this application, see Figures 5-7 As shown, the stationary mold core 120 also includes a heat conduction groove 125, which is located on the back of the cavity of the second half mold body. The temperature control unit is located between the upper mold frame 131 and the stationary mold core 120.

[0040] In some embodiments of this application, the moving mold core 110 further includes a third through hole 114. A plurality of third through holes 114 are provided in the middle of the moving mold core 110, and the plurality of third through holes 114 correspond to the channel 113.

[0041] Specifically, in an injection molding machine, the mold frame, as the outermost structure, acts as the skeleton, forming the basic framework of the mold. The mold frame consists of two parts, upper and lower, used to fix the mold core and ejector unit. The upper mold frame 131 is used to fix the stationary mold core 120. The mold frame and the mold core are connected by bolts. A heat conduction groove 125 is provided in the middle of the stationary mold core 120. The heat conduction groove 125 is located on the back of the second half of the mold body cavity, which can directly heat the second half of the mold body cavity. The cooling part and the constant temperature part of the temperature control unit are located between the upper mold frame 131 and the stationary mold core 120 and between the lower mold frame 132 and the moving mold core 110. The moving mold core 110 is provided with several third through holes 114 at positions corresponding to the first half of the mold body cavity 112. The third through holes 114 are used to insert the ejector part of the ejector unit.

[0042] Understandably, the upper mold base 131 and the stationary mold core 120 are fixed together with bolts. This secure connection between the upper mold base 131 and the stationary mold core 120 improves the overall stability of the mold. During injection molding, this stability reduces mold closing deviations caused by mold loosening, thereby improving product quality. The heat-conducting groove 125 directly heats the cavity of the second half of the mold body, ensuring uniform temperature distribution within the cavity. By directly heating the cavity, the heat-conducting groove 125 ensures that the temperature of the stationary mold core 120 is maintained between 110-115 degrees Celsius during injection molding, avoiding localized overheating or insufficient cooling. Uniform temperature distribution helps improve the filling effect of the molten plastic, reduces weld lines and flow marks, thereby improving the surface quality of the product.

[0043] The heat-conducting groove 125 enables more flexible temperature control, allowing for rapid response to temperature changes and rapid heating and cooling. This not only helps improve production efficiency but also reduces mold deformation and mold closing accuracy issues caused by temperature variations. Uniform temperature distribution reduces thermal stress and extends mold life. Thermal stress is a major cause of mold deformation and damage, and the design of the heat-conducting groove 125 significantly reduces this risk. Several positioning slots 430 are provided on both sides of the moving mold core 110. These slots 430 engage with positioning guide devices to ensure precise mold alignment during mold closing and opening. The positioning slots 430, in conjunction with the positioning guide devices, ensure consistent mold position during each mold closing and opening process, preventing inconsistent product quality due to positional deviations. Precise alignment helps reduce mold position adjustment time and improves production efficiency. This is especially important in high-precision production processes. Precise alignment reduces friction during mold closing and opening, thereby reducing mold wear and extending its lifespan. By inserting the ejector into the third through hole 114, it can be ensured that the ejection force is evenly distributed to all parts of the product, avoiding localized deformation or damage. This helps to improve the ejection effect and reduce the scrap rate.

[0044] A uniformly distributed ejection force can accelerate the ejection speed of products, shorten the production cycle, and thus improve production efficiency. It can also reduce malfunctions during the ejection process, avoid mold damage or product defects caused by poor ejection, and further improve production reliability.

[0045] In some embodiments of this application, see Figure 4 As shown, the ejector part includes an ejector pin 321 and a mounting platform 322. The top of the ejector pin 321 is connected to the mounting platform 322. The upper three sides of the mounting platform 322 are provided with sealant, and the lower three sides of the mounting platform 322 are provided with grooves 323111. The depth of the grooves 323111 is 0.05mm.

[0046] Specifically, the mounting platform 322 on the ejector pin 321 can prevent the ejector pin 321 from moving downwards, so that no stress will be generated on the surface after injection molding, thus not affecting the appearance of the product. In addition, the three sides of the mounting platform 322 on the ejector pin 321 are sealed with glue on the bevel, and the three sides of the mounting platform 322 on the bottom are 0.05mm away from each other to prevent the ejector pin 321 from getting stuck during ejection.

[0047] Understandably, the main function of the mounting platform 322 connected to the top of the ejector pin 321 is to prevent the ejector pin 321 from shifting downwards during the ejection process, ensuring that the ejector pin 321 can smoothly return to its original position after injection molding, without leaving stress marks on the surface of the product, thus not affecting the appearance quality of the product. The mounting platform 322 can prevent the ejector pin 321 from shifting downwards due to the ejection force during the ejection process. The stable return of the ejector pin 321 helps reduce stress concentration during the ejection process, avoiding deformation or cracks on the surface of the product. The mounting platform 322 makes the ejector pin 321 more stable during the ejection process, ensuring that the ejection force is evenly distributed to all parts of the product, improving the demolding effect, reducing the scrap rate, and improving production efficiency. Preventing the ejector pin 321 from shifting downwards ensures that the mold surface is not subjected to additional stress during the ejection process, thus maintaining a smooth and mark-free surface quality. The sealing material on three sides of the mounting platform 322 further improves the sealing performance of the ejection section, preventing molten plastic from entering the gaps in the ejection section during the injection molding process, affecting the ejection effect and product quality. Sealing sealant can seal the gaps between the ejector platen 322 and other mold components, preventing molten plastic from entering these gaps during injection molding, keeping the mold clean, reducing cleaning time, improving production efficiency, reducing stress concentration during ejection, avoiding product deformation or damage caused by uneven ejection force, and reducing the erosion of the mold by molten plastic, extending the mold's service life. The grooves 323111 on the three lower sides of the ejector platen 322 provide sufficient clearance to prevent the ejector pins 321 from seizing due to excessive friction during ejection. The 0.05mm depth of the grooves 323111 provides sufficient clearance without affecting the mold's tightness and ejection effect. The grooves 323111 reduce friction between the ejector pins 321 and other mold components, preventing ejector pin damage or deformation caused by friction.

[0048] In some embodiments of this application, a positioning unit 4 is also included. The positioning unit 4 includes a guide post 410, a guide sleeve 420 and a positioning slot 430. One end of the guide post 410 is connected to the positioning slot 430, and the guide post 410 is sleeved on the other end of the guide sleeve 420. The guide sleeve 420 is inserted into the positioning slot 430 and the positioning slot 430 is set on the mold frame.

[0049] Understandably, one end of the guide pillar 410 connects to the positioning slots 430 on both sides of the lower mold base 132. The positioning slots 430 ensure precise alignment between the guide pillar 410 and the lower mold base 132. Specifically, the positioning slots 430, in conjunction with the positioning guide device, ensure the consistency of the mold's position during each mold closing and opening process, avoiding inconsistent product quality due to positional deviations. They also ensure the precise position of the guide pillar 410 during mold closing, allowing the moving mold core 110 and the stationary mold core 120 to align perfectly, preventing mold closing problems caused by alignment deviations and improving mold closing accuracy. High-precision alignment reduces product defects caused by poor mold closing, lowers the scrap rate, and increases the yield. Precise alignment reduces the time spent adjusting the mold position, improving production efficiency. The connection between the positioning slots 430 and the guide pillar 410 ensures the stability of the lower mold base 132, preventing loosening or displacement during injection molding, thus improving the overall stability of the mold. Stable positioning can reduce mold vibration during injection molding, avoiding surface defects and mold closing problems caused by vibration.

[0050] In this embodiment, the guide post 410 is sleeved on the other end of the guide sleeve 420, ensuring the concentricity between the guide post 410 and the guide sleeve 420. This improves the running accuracy of the mold during mold closing and opening, ensuring the precise position of the guide post 410 during mold closing, thus allowing the moving mold core 110 and the stationary mold core 120 to be perfectly aligned. This avoids mold closing problems caused by alignment deviations and improves mold closing accuracy. High concentricity reduces the offset between the guide post 410 and the guide sleeve 420, avoiding mold closing deviations and inconsistent product quality caused by offsets.

[0051] In some embodiments of this application, the cooling section includes a first cooling pipe 211, and the first cooling pipe 211 is provided on both sides of the upper mold frame 131.

[0052] Understandably, in modern plastic injection molding, mold temperature control is a crucial factor in ensuring product quality and improving production efficiency. The cooling section includes a first cooling pipe 211, positioned on both sides of the upper mold base 131. Optimizing the cooling pipe layout improves cooling efficiency, ensures uniform mold temperature distribution, and allows for a more efficient flow path of the coolant within the mold. Traditional cooling systems often place cooling pipes in the center of the mold, leading to uneven cooling. The side-mounted cooling pipes provide more even cooling, reducing localized overheating or insufficient cooling. This allows for temperature regulation on both sides of the mold, ensuring a uniform overall temperature distribution, improving the filling effect of the molten plastic, reducing weld lines and flow marks, thus improving product quality. It also reduces inconsistent thermal expansion due to temperature differences during cooling, enhancing mold stability. Positioning the cooling pipes on the inner side reduces condensation. Condensation not only affects mold cleanliness but also negatively impacts product quality. It also improves coolant flow efficiency. The internal cooling pipe layout reduces the resistance of the coolant inside the mold, ensuring that the coolant can flow quickly and evenly, thereby improving the cooling effect.

[0053] In some embodiments of this application, the constant temperature section includes a constant temperature block 222 and a first constant temperature tube 223. The first constant temperature tube 223 is disposed on the back side of the stationary mold core 120. The first constant temperature tube 223 is connected to the constant temperature block 222. The constant temperature block 222 is disposed on the heat conduction groove 125.

[0054] In some embodiments of this application, the constant temperature section further includes a second constant temperature tube 224, which is respectively disposed between the upper mold frame 131 and the stationary mold core 120 and between the lower mold frame 132 and the moving mold core 110.

[0055] Understandably, the thermostatic blocks 222, positioned on both sides of the middle of the upper mold base 131 and connected to the first thermostatic tube 223, ensure a constant temperature inside the mold, avoiding inconsistent product quality caused by temperature fluctuations. This ensures the mold temperature remains within an ideal range, improving product quality and reducing temperature fluctuations during mold closing and opening, thus increasing production efficiency. The thermostatic blocks 222 also ensure a rational heat transfer path, enabling rapid and uniform heat transfer, improving heat transfer efficiency, and ensuring uniform temperature distribution throughout the mold, preventing product defects caused by localized overheating or insufficient cooling. The thermostatic blocks 222 ensure rapid and uniform heat transfer. High thermal conductivity materials contribute to improved temperature uniformity and cooling efficiency in the mold. Through efficient heat transfer, the thermostatic blocks 222 reduce thermal stress in the mold during injection molding, preventing mold cracking or deformation caused by uneven temperature. Reduced thermal stress helps extend mold lifespan, lowers maintenance and replacement frequency, and improves mold operational stability, reducing mold vibration and mold closing deviations caused by uneven temperature. The first thermostatic tube 223 connects to the thermostatic block 222, ensuring uniform flow inside the mold and preventing inconsistent temperature distribution caused by uneven flow.

[0056] In some embodiments of this application, the cooling section further includes a second cooling pipe 212, which is respectively disposed between the upper mold frame 131 and the stationary mold core 120 and between the lower mold frame 132 and the moving mold core 110.

[0057] In some embodiments of this application, a beryllium copper insert 5 is provided at the injection port 123.

[0058] Understandably, in modern plastic injection molding, mold cooling is a key factor in ensuring product quality and improving production efficiency. The first cooling pipe 211 is located on both sides of the upper mold base 131, ensuring that the coolant is evenly distributed throughout the mold. The cooling pipes on both sides regulate the temperature on both sides of the mold, ensuring a uniform temperature distribution throughout the mold. The path and diameter of the cooling pipes ensure rapid and even flow of the coolant, improving cooling efficiency. The second cooling pipe 212 is located between the upper mold base 131 and the stationary mold core 120, and between the lower mold base 132 and the moving mold core 110. The second cooling pipe 212 prevents localized overheating of the mold during injection molding, ensuring a uniform temperature distribution throughout the mold. The second cooling pipe 212 allows the coolant to flow through critical areas of the mold, thereby improving cooling efficiency, reducing product cooling time, and increasing production speed. The second cooling pipe 212 reduces the difference in thermal expansion between the upper mold base 131 and the stationary mold core 120, and between the lower mold base 132 and the moving mold core 110, thus improving the mold closing accuracy. Uniform temperature distribution reduces thermal stress in the mold during injection molding, preventing mold vibration caused by uneven temperature. In plastic injection molding, the injection port (123) is a key factor in ensuring smooth filling of the mold by molten plastic and the quality of the finished product. Beryllium copper is a highly thermally conductive material that can rapidly conduct heat from the injection port (123) to other parts of the mold, thereby improving cooling efficiency. Efficient heat conduction helps reduce product cooling time and increase production speed. Through efficient heat conduction, the temperature at the injection port (123) can be quickly and evenly distributed to other parts of the mold, avoiding product defects caused by localized overheating. Uniform temperature distribution helps improve the surface quality and performance of the product. Beryllium copper also has high wear resistance, reducing wear caused by the high-speed flow of molten plastic during injection molding, and good corrosion resistance, resisting corrosive substances in the molten plastic and preventing damage to the injection port (123) due to corrosion.

[0059] The above embodiments of a switch and socket paint-free panel mold, by setting a constant temperature section on both the moving and stationary mold cores, increases the temperature of the moving mold core, ensuring its temperature is close to that of the stationary mold core. This guarantees the concentricity of the guide pillars, improves mold closing accuracy, and reduces inconsistent thermal expansion caused by temperature differences. It ensures that the moving and stationary mold cores maintain consistent deformation during injection molding, thus avoiding misalignment and jamming during mold closing, improving production efficiency and product consistency. Simultaneously, by creating a reverse-shaped "tiger mouth" (a groove corresponding to the "tiger mouth") on the stationary mold core and on the moving mold core, it prevents excessive mold expansion due to the high temperature of the stationary mold core, which could lead to cracking of the "tiger mouth." By utilizing the temperature advantage of the stationary mold core relative to the moving mold core, the expansion pressure is more evenly distributed around the "tiger mouth," rather than concentrated in one area. Even under high-temperature conditions, the "tiger mouth" will not crack or be damaged due to uneven stress, thereby extending the mold's service life and reducing maintenance costs. The moving and stationary mold cores are cooled by water or oil, with the mold temperature regulated by circulating coolant. Furthermore, the thermostatic unit ensures that the coolant evenly covers the entire mold surface, preventing localized overheating or insufficient cooling, thereby controlling the overall mold temperature, reducing uneven thermal stress distribution caused by temperature changes, and further improving mold closing stability.

[0060] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A switch socket spray-free faceplate mould, characterised in that, The utility model relates to a kind of injection molding machine, including: Molding unit, including die section, the die section includes movable die section and static die section, the movable die section four corners are provided with recess, the movable die section middle is provided with a plurality of first half-face mold body cavity, a plurality of the first half-face mold body cavity is provided with a plurality of passageways around, the static die section four corners are provided with tiger mouth, the tiger mouth corresponds with the recess, the static die section is provided with a plurality of second half-face mold body cavity, first half-face mold body cavity and second half-face mold body cavity jointly constitute panel body cavity, a plurality of the first half-face mold body cavity and a plurality of the second half-face mold body cavity middle are provided with injection port and injection flow guide groove; Temperature control unit, including cooling part and constant temperature part, the cooling part and constant temperature part are inserted in a plurality of the die body cavity back; Ejection unit, including ejection bottom plate and ejecting part, the ejecting part is arranged on ejection bottom plate, the ejecting part is matched with a plurality of the passageways for ejecting die body.

2. The switch socket spray finish free panel mould according to claim 1, wherein, The static die section further includes heat conduction groove, the heat conduction groove is arranged on the back of the second half-face mold body cavity, and the temperature control unit is arranged between the upper die holder and the static die section.

3. The switch socket spray finish free panel mould according to claim 2, wherein, The movable die section further includes third through hole, and the movable die section is provided with a plurality of third through holes in the middle part, and the third through holes are correspondingly arranged with the passageways.

4. The switch socket spray finish free panel mould according to claim 3, wherein, The ejecting part includes ejector pin and hanging platform, the top of the ejector pin is connected with the hanging platform, three sides of the hanging platform are provided with sealing glue, and three sides of the hanging platform are provided with recesses, and the depth of the recesses is 0.05mm.

5. The switch socket spray finish free panel mould according to claim 4, wherein, Further including positioning unit, the positioning unit includes guide column, guide sleeve and positioning slot hole, one end of the guide column is connected with the positioning slot hole, the guide column is sleeved on the other end of the guide sleeve, the guide sleeve is inserted in the positioning slot hole, and the positioning slot hole is arranged on the die holder.

6. The switch socket spray finish free panel mould according to claim 5, wherein, The cooling part includes first cooling pipe, and the upper die holder is provided with first cooling pipe on both sides.

7. The switch socket spray finish free panel mould according to claim 6, wherein, The constant temperature part includes constant temperature block, first constant temperature pipe, the first constant temperature pipe is arranged on the back of the static die section, the first constant temperature pipe is connected with the constant temperature block, and the constant temperature block is arranged on the heat conduction groove.

8. The switch socket spray finish free panel mould according to claim 7, wherein, The constant temperature part further includes second constant temperature pipe, and the second constant temperature pipe is arranged between the upper die holder and the static die section and between the lower die holder and the movable die section respectively.

9. The switch socket spray finish free panel mould according to claim 8, wherein, The cooling part further includes second cooling pipe, and the second cooling pipe is arranged between the upper die holder and the static die section and between the lower die holder and the movable die section respectively.

10. The switch socket spray finish free panel mould as claimed in claim 1 wherein, Beryllium copper insert is arranged at the injection port.

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