A two-color injection mold and injection molding method

Abstract

The embodiment of the application provides a kind of two-color injection mold and injection molding method, it is related to two-color injection molding technical field.The two-color injection mold includes: fixed die and movable die, wherein, the fixed die inner cavity lower part is fixed die injection face, and the movable die inner cavity upper part is movable die injection face, the movable die can be relative to the fixed die movement and form sealed mold cavity;Adjusting top core for separating sealed mold cavity into at least two mold cavities is slidably arranged on the upper part of the inner cavity of the movable die.The scheme does not need two sets of independent molds, and the two-color injection cavity is separated by adjusting top core in the same mold cavity, which eliminates the need for semi-finished product transfer to avoid deformation and pollution, flexible ring plate and adjustable anti-sticking component ensure the quality of two-color connection, multiple mold sets are integrated and driven by cylinder driving member to improve efficiency and reduce cost, sealing spacer ensures mold cavity sealing, greatly improves product quality and pass rate, and is suitable for industrialized mass production.

Description

Technical Field

[0001] This application relates to the field of two-color injection molding technology, and more specifically, to a two-color injection mold and injection method. Background Technology

[0002] In the field of injection molding, two-color injection molding technology is widely used in industries such as electronics, automobiles, and home furnishings because it can achieve integrated molding of products with different colors or materials, meeting the diversified needs of product function and appearance.

[0003] In existing technologies, the realization of two-color injection molding generally relies on two independent injection molds: first, the first color or first material of the molding material is injected into the mold cavity of the first mold to form a semi-finished product; then, the semi-finished product needs to be taken out from the first mold by manual or mechanical transfer mechanism and transferred to the corresponding mold cavity of the second mold, and then the second color or second material of the molding material is injected to finally complete the molding of the two-color injection molded product.

[0004] However, the aforementioned existing technical solutions have significant drawbacks: First, during the transfer of the semi-finished product from the first mold to the second mold, it lacks stable support and protection, and is prone to deformation due to external impact, its own weight, or changes in ambient temperature, affecting the dimensional accuracy of the product; Second, the semi-finished product is exposed to the external environment during the transfer process, and is easily contaminated by dust, impurities, or oil stains, leading to a decline in the surface quality of the final product; Third, when positioning the semi-finished product into the cavity of the second mold, it is difficult to ensure positioning accuracy, and gaps, bubbles, or loose bonding are prone to occur at the injection molding interface between the first and second color materials, seriously affecting the structural integrity and appearance consistency of the product. The aforementioned problems ultimately resulted in a low yield rate for two-color injection molded products. At the same time, the investment in multiple sets of molds and the addition of transfer links increased production costs and reduced production efficiency, making it difficult to meet the needs of large-scale, high-quality industrial production. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a two-color injection mold and injection method that eliminates the need for two independent molds. By adjusting the ejector core, the two-color injection cavities are separated within the same mold cavity, eliminating the semi-finished product transfer step and preventing deformation or contamination during transfer, thus ensuring product precision and cleanliness. A flexible ring plate, combined with an adjustable anti-stick component, ensures tight, seamless, and airtight two-color injection molding, significantly improving the yield rate. Multiple mold cores are integrated through a control console, and the cylinder-driven components provide high efficiency, reducing mold investment and production costs. Sealing spacers ensure mold cavity sealing, further improving product quality and adapting to large-scale, high-quality industrial production.

[0006] A two-color injection mold according to an embodiment of this application includes a fixed mold core and a movable mold core, wherein the lower part of the inner cavity of the fixed mold core is a fixed mold injection surface, and the upper part of the inner cavity of the movable mold core is a movable mold injection surface, and the movable mold core can move relative to the fixed mold core to form a sealed mold cavity; An adjusting top core is slidably disposed above the inner cavity of the moving mold core to divide the sealed mold cavity into at least two mold cavities. The mold cavities after being divided by the adjusting top core are the first color injection cavity and the second color injection cavity, which are used for two-color injection molding. The outer ring of the adjusting top core is provided with a flexible ring plate, and the end of the outer ring of the adjusting top core is provided with an adjusting cavity. An adjustable anti-stick component is installed on the inner surface of the adjusting top core, wherein the adjustable anti-stick component is used to pull the bottom of the flexible ring plate to move.

[0007] According to some embodiments of this application, a first color injection gun and a second color injection gun are installed through the surface of the fixed mold core, and the first color injection gun and the second color injection gun are respectively used to inject into the first color injection cavity and the second color injection cavity.

[0008] According to some embodiments of this application, multiple sets of fixed mold cores and moving mold cores are arranged vertically symmetrically. Multiple sets of fixed mold cores are installed through a fixed mold control console, while multiple sets of moving mold cores are installed through a moving mold control console. The moving mold cores are driven by cylinder pushers symmetrically installed along the axis on both sides of the surface of the moving mold control console.

[0009] According to some embodiments of this application, the output end of the cylinder pusher is connected to a connecting rod, and the bottom of the two connecting rods is connected to a bottom push plate. A push rod is connected to the surface of the bottom push plate on the side opposite to the moving mold core, and the push rod pushes the adjusting top core to move.

[0010] According to some embodiments of this application, the adjustable anti-stick assembly includes a power-driven air pump, which is installed inside the adjustable top core. The output end of the air pump is connected to a ring pipe via a pipe, and the output end of the ring pipe is connected to an airbag via a pipe.

[0011] According to some embodiments of this application, the adjustable anti-stick assembly includes a ring adjustment plate and a push rod. The ring adjustment plate is disposed in a receiving cavity, wherein the inner surface of the ring adjustment plate is connected to a push protrusion for pushing the push rod.

[0012] According to some embodiments of this application, the inner ring of the push-fit protrusion is provided with a ring rod, a magnet is slidably sleeved on one side of the outer surface of the ring adjustment plate, and an electromagnet is fixedly sleeved on the outer surface of the ring adjustment plate and on the side of the magnet.

[0013] According to some embodiments of this application, a connecting sleeve one is fixedly sleeved on one end of the surface of the push rod, while a connecting sleeve two is movably sleeved on the other end of the push rod; a connecting spring is provided on the opposite side of the connecting sleeve one and the connecting sleeve two and on the outer surface of the push rod.

[0014] According to some embodiments of this application, the adjustable anti-sticking component includes an air pump two, and the output end of the air pump two is connected to an annular pipe two. The surface of the annular pipe two is connected to a plurality of push sleeves, wherein the inner cavity of the push sleeve is slidably connected to a push rod.

[0015] On the other hand, in order to solve the above-mentioned technical problems, according to the embodiments of this application, the present invention also provides a two-color injection mold injection method, including the following steps: S1: Mold assembly and injection molding are connected. The fixed mold core is installed on the fixed mold control console, and the moving mold core is installed on the moving mold control console. The feed ends of the first color injection gun and the second color injection gun are respectively connected to the discharge end of the injection molding machine.

[0016] S2: The mold closes to form a sealed mold cavity. The cylinder pushes the moving mold core to insert with the fixed mold core. The injection surface of the fixed mold and the injection surface of the moving mold cooperate to form a sealed mold cavity. The sealing spacer seals the edge of the mold cavity.

[0017] S3: The first color injection space is constructed by dividing the mold cavity. The movement of the cylinder pusher eventually drives the push rod to push the adjusting core upward, dividing the sealed mold cavity into the first color injection cavity and the second color injection cavity; the adjustable anti-stick component controls the flexible ring plate to move outward, forming the complete sidewall of the first color injection cavity.

[0018] S4: First color injection. Start the first color injection gun and inject the first color mold material into the first color injection cavity through its nozzle to complete the first color injection.

[0019] S5: Adjust the mold cavity to construct the second color injection space. The cylinder pusher drives the adjusting core to move down to expose the second color injection cavity. The adjustable anti-stick component controls the flexible ring plate to tilt towards the adjusting cavity and detach from the first color mold part.

[0020] S6: Second color injection. Start the second color injection gun and inject the second color mold material into the second color injection cavity through its nozzle to complete the second color injection.

[0021] S7: Mold opening and part removal. After the second color mold material cools and solidifies, the cylinder pushes the moving mold core to separate from the fixed mold core, and the two-color injection molded product is removed.

[0022] The beneficial effects of this application are as follows: the moving mold core moves and inserts relative to the fixed mold core to form a sealed mold cavity, with the fixed mold injection surface being the top surface of the cavity and the moving mold injection surface being the bottom surface of the cavity. Subsequently, the cylinder pusher works, and its output end extends back, driving the connecting rod and the bottom push plate to move upward, thereby pulling the push rod and the connecting plate upward, pushing the adjusting top core slidably set above the inner cavity of the moving mold core upward, dividing the sealed mold cavity into a first color injection cavity and a second color injection cavity. At the same time, the sealing spacer sleeve fitted on the outer ring of the inner surface of the moving mold core seals the edge of the first color injection cavity, and the adjustable anti-stick component cooperates to make the outer ring of the adjusting top core surface flexible. The outer wall of the ring plate is flush with the outer wall of the adjusting core to serve as the side wall of the first color injection cavity. Then, the first color injection gun, which is installed through the surface of the fixed mold core, injects the molding material into the first color injection cavity to complete the first color injection. After the first color injection, the adjusting core is moved down to expose the second color injection cavity by the cylinder pusher, connecting rod, bottom push plate, push rod and connecting plate. The adjustable anti-stick component drives the flexible ring plate to tilt into the adjusting cavity of the adjusting core to peel off from the first color model part. Then, the second color injection gun injects the molding material into the second color injection cavity to complete the second color injection, and finally realizes the two-color injection of different materials.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a two-color injection mold according to an embodiment of this application; Figure 2 This is one of the exploded perspective views of the overall structure of a two-color injection mold according to an embodiment of this application; Figure 3 This is the second exploded perspective view of the overall structure of the two-color injection mold according to an embodiment of this application; Figure 4 This is the third exploded perspective view of the overall structure of the two-color injection mold according to an embodiment of this application; Figure 5 This is a schematic front sectional view of a two-color injection mold structure according to an embodiment of this application; Figure 6 This is a schematic diagram of the assembly of multiple fixed mold cores and moving mold cores according to embodiments of this application; Figure 7This is a schematic front sectional view of the structure of multiple fixed mold cores and moving mold cores according to an embodiment of this application; Figure 8 This is a three-dimensional sectional view of the structure of multiple fixed mold cores and moving mold cores according to embodiments of this application; Figure 9 This is a schematic diagram of the assembly of a single fixed mold core and a moving mold core according to an embodiment of this application; Figure 10 This is a front view schematic diagram of a single fixed mold core and a moving mold core structure according to an embodiment of this application; Figure 11 This is a schematic diagram of the push rod and adjusting top core structure assembly according to an embodiment of this application; Figure 12 This is a three-dimensional sectional view of the adjustable top core structure in the first embodiment of the adjustable anti-stick component according to this application; Figure 13 This is a schematic front sectional view of the adjustable top core structure in the first embodiment of the adjustable anti-stick component according to this application; Figure 14 This is a three-dimensional sectional view of the adjustable top core structure in the second embodiment of the adjustable anti-stick component according to this application; Figure 15 This is a schematic front sectional view of a partial structure of the adjustable top core in the second embodiment of the adjustable anti-stick component according to this application; Figure 16 This is a three-dimensional schematic diagram of the structure of the adjustable anti-stick component according to the second embodiment of this application, including the ring adjustment plate, the push protrusion, the ring rod, the magnet, the electromagnet, the arc spring, and the push rod. Figure 17 This is a cross-sectional schematic diagram of the ring adjustment plate structure in the second embodiment of the adjustable anti-stick component according to this application; Figure 18 This is a three-dimensional sectional view of the adjustable top core structure in the third embodiment of the adjustable anti-stick component according to this application; Figure 19 This is a schematic front sectional view of a partial structure of the adjustable top core in the third embodiment of the adjustable anti-stick component according to this application; Figure 20 This is a schematic front sectional view of the finished part after injection molding using a two-color injection mold according to an embodiment of this application; Icons: 100, Fixed mold core; 101, Fixed mold injection surface; 110, Fixed mold control console; 120, Second color injection gun; 130, First color injection gun; 200, Moving mold core; 201, Moving mold injection surface; 210, Moving mold control console; 220, Sealing spacer; 300, Cylinder pusher; 310, Connecting rod; 320, Bottom ejector plate; 330, Ejector rod; 331, Connecting plate; 340, Adjusting ejector core; 350, Flexible ring plate; 351, Adjusting cavity; 352, Receiving cavity; 400. 410 Second color injection cavity; 500 First color injection cavity; 510 Air pump one; 520 Airbag; 600 Ring adjustment plate; 610 Push-fit protrusion; 620 Ring rod; 630 Magnet; 640 Electromagnet; 650 Arc spring; 660 Push rod; 661 Connecting sleeve one; 662 Connecting spring; 663 Connecting sleeve two; 700 Air pump two; 710 Ring tube two; 720 Push sleeve; 730 Push rod; 740 Adjustment spring. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0027] Example 1 The two-color injection molding method according to the embodiments of this application includes the following steps: S1: Mold assembly and injection molding are connected. The fixed mold core 100 is installed on the fixed mold control console 110 and the moving mold core 200 is installed on the moving mold control console 210. The feed ends of the first color injection gun 130 and the second color injection gun 120 are respectively connected to the discharge end of the injection molding machine.

[0028] S2: The mold is closed to form a sealed mold cavity. The cylinder pusher 300 drives the moving mold core 200 to insert with the fixed mold core 100. The injection surface 101 of the fixed mold and the injection surface 201 of the moving mold cooperate to form a sealed mold cavity. The sealing spacer 220 seals the edge of the mold cavity.

[0029] S3: The first color injection space is constructed by dividing the mold cavity. The movement of the cylinder pusher 300 eventually drives the push rod 330 to push the adjusting top core 340 upward, dividing the sealed mold cavity into the first color injection cavity 410 and the second color injection cavity 400. The adjustable anti-stick component controls the flexible ring plate 350 to move outward, forming the complete sidewall of the first color injection cavity 410.

[0030] S4: First color injection. Start the first color injection gun 130 and inject the first color mold material into the first color injection cavity 410 through its nozzle to complete the first color injection.

[0031] S5: Adjust the mold cavity to construct the second color injection space. The cylinder pusher 300 drives the adjusting top core 340 to move down to expose the second color injection cavity 400. The adjustable anti-stick component controls the flexible ring plate 350 to tilt towards the adjusting cavity 351 and detach from the first color mold part.

[0032] S6: Second color injection. Start the second color injection gun 120 and inject the second color mold material into the second color injection cavity 400 through its nozzle to complete the second color injection.

[0033] S7: After the mold is opened and the second color mold material is cooled and formed, the cylinder pusher 300 drives the moving mold core 200 to separate from the fixed mold core 100, and the two-color injection molded product is taken out.

[0034] Example 2 like Figures 1-20 As shown, a two-color injection mold according to an embodiment of this application includes: a fixed mold core 100 and a movable mold core 200, wherein the lower part of the inner cavity of the fixed mold core 100 is the fixed mold injection surface 101, and the upper part of the inner cavity of the movable mold core 200 is the movable mold injection surface 201. Figure 7 and Figure 10 As shown, the moving mold core 200 can move relative to the fixed mold core 100 to form a sealed mold cavity. The moving mold core 200 moves above the fixed mold core 100 and inserts into it. The moving mold injection surface 201 forms the bottom surface of the sealed mold cavity, while the fixed mold injection surface 101 forms the top surface of the sealed mold cavity. The fixed mold injection surface 101 and the moving mold injection surface 201 cooperate to form a complete sealed mold cavity, so that the molding material can be injected into the sealed mold cavity through the first color injection gun 130 and the second color injection gun 120 respectively for two-color injection molding. like Figure 10 As shown, an adjusting top core 340 is slidably disposed above the inner cavity of the moving mold core 200 for dividing the sealed mold cavity into at least two mold cavities. The mold cavities after the sealed mold cavity is divided by the adjusting top core 340 are the first color injection cavity 410 and the second color injection cavity 400, which are used for two-color injection molding. like Figure 10 As shown, a sealing spacer 220 is fitted around the outer ring of the inner surface of the moving mold core 200. The sealing spacer 220 is used to seal and block the edge of the first color injection cavity 410 of the sealing mold cavity after the fixed mold core 100 and the moving mold core 200 are mated; the product after injection molding is as follows: Figure 20 As shown.

[0035] like Figure 10 As shown, a first-color injection gun 130 and a second-color injection gun 120 are mounted through the surface of the fixed mold core 100. The first-color injection gun 130 and the second-color injection gun 120 are used to inject molding into the first-color injection cavity 410 and the second-color injection cavity 400, respectively. The inlet ends of the first-color injection gun 130 and the second-color injection gun 120 are connected to the outlet ends of the injection molding machine. The nozzles of the first-color injection gun 130 and the second-color injection gun 120 penetrate to the fixed mold injection surface 101 of the fixed mold core 100.

[0036] like Figures 1 to 8 As shown, multiple sets of fixed mold cores 100 and moving mold cores 200 are arranged vertically symmetrically. Multiple sets of fixed mold cores 100 are installed via a fixed mold control console 110, while multiple sets of moving mold cores 200 are installed via a moving mold control console 210. Figures 4 to 8 As shown, the moving mold core 200 is driven by cylinder pushers 300 symmetrically mounted on both sides of the surface of the moving mold control console 210 along the axis.

[0037] Specifically, the output end of the cylinder pusher 300 is connected to a connecting rod 310, and the bottom of the two connecting rods 310 is connected to a bottom push plate 320. The surface of the bottom push plate 320 and the side opposite to the moving mold core 200 are connected to a push rod 330, which pushes the adjusting top core 340 to move. In actual use, the cylinder pusher 300 operates, its output end extends back, driving the connecting rod 310 and the bottom push plate 320 to move upward. Then, the bottom push plate 320 pulls the push rod 330 and the connecting plate 331 upward, subsequently pushing the adjusting core 340 upward, dividing the sealed mold cavity into two, forming the first color injection cavity 410 and the second color injection cavity 400. During injection molding, the adjusting core 340 seals the second color injection cavity 400, and the first color injection is performed in the first color injection cavity 410. After the first color injection is completed, the adjusting core 340 is lowered to expose the second color injection cavity 400 through the cylinder pusher 300, connecting rod 310, bottom push plate 320, push rod 330, and connecting plate 331. Then, the second color injection is performed in the second color injection cavity 400 using the second color injection gun 120. This completes the two-color injection molding of different materials. The end of the push rod 330 is integrally connected to the connecting plate 331, which is used to install the adjusting top core 340. Bolt holes are opened on the surface of both the connecting plate 331 and the adjusting top core 340. When the connecting plate 331 and the adjusting top core 340 are attached together, the external bolts are screwed into the threaded holes in the connecting plate 331 and the adjusting top core 340 to complete the connection between the two. Of course, the connection between the connecting disc 331 and the adjusting top core 340 includes, but is not limited to, the threaded connection described above, and the connection between the connecting disc 331 and the adjusting top core 340 can also be achieved by snap-fit ​​or other movable connection methods.

[0038] like Figures 11-19As shown, a flexible ring plate 350 is provided on the outer ring of the surface of the adjusting top core 340. The flexible ring plate 350 is made of flexible material, and the flexible ring plate 350 is composed of multiple segments assembled into a ring shape and fits against the outer surface of the adjusting top core 340; as shown... Figure 13 , Figure 15 and Figure 19 As shown, the outer ring end of the adjusting core 340 has an adjusting cavity 351, and the inner surface of the end of the flexible ring plate 350 is fixedly connected to the inner wall of the adjusting cavity 351. An adjustable anti-stick component is installed on the inner surface of the adjusting core 340. The adjustable anti-stick component is used to pull the bottom of the flexible ring plate 350. When the adjusting core 340 is used to perform the first color injection on the sealed mold cavity partition, the control cylinder pusher 300 and other structures push the adjusting core 340 upward to block the second color injection cavity 400 in the sealed mold cavity. At the same time, the adjustable anti-stick component pushes the flexible ring plate 350 outward to make its surface flush with the outer wall of the adjusting core 340. At this time, when the first color injection is performed using the first color injection cavity 410, the flexible ring... The outer wall of plate 350 serves as the side wall of the first color injection cavity 410 after the sealing mold cavity is separated. Together with the fixed mold injection surface 101 and the moving mold injection surface 201, it forms a complete first color injection space in the first color injection cavity 410. The first color injection can then be performed using the first color injection gun 130. After injection, while controlling the adjusting core 340 to move down and reset, the adjustable anti-stick component can be controlled to push the flexible ring plate 350 into the adjusting cavity 351 to tilt it. This quickly separates the flexible ring plate 350 from the first color model part that has just been injection molded, avoiding damage to the outer wall of the first color model part after injection when the adjusting core 340 and the flexible ring plate 350 are moved down directly. This avoids problems at the injection joint when the two colors are injection molded.

[0039] like Figure 13 , Figure 15 and Figure 19 As shown, the inner surface of the adjusting top core 340 is also provided with a storage cavity 352, and the groove of the storage cavity 352 is annular. In the first embodiment of the adjustable anti-stick assembly, the storage cavity 352 is used to support parts such as the ring tube 510.

[0040] In the second embodiment of the adjustable anti-stick assembly, the storage cavity 352 is used to support components such as the ring adjustment plate 600, the push-fit protrusion 610, the ring rod 620, the magnet 630, the electromagnet 640, and the arc spring 650. In the third embodiment of the adjustable anti-stick assembly, the storage cavity 352 is used to support parts such as the push-fit protrusion 610.

[0041] like Figure 13 , Figure 15 and Figure 19As shown, a limiting protrusion is connected to the outer side of the bottom of the inner cavity of the adjusting cavity 351, and a groove is provided at the bottom of the flexible ring plate 350 to cooperate with the limiting protrusion. When the flexible ring plate 350 is pushed outward until its outer wall is perpendicular to the outer wall of the adjusting top core 340, the groove and the limiting protrusion overlap each other, which can stop the flexible ring plate 350 from moving outward, so that the maximum outward movement range of the flexible ring plate 350 is perpendicular to the outer wall of the adjusting top core 340.

[0042] refer to Figure 12 and Figure 13 As shown, the first embodiment of the adjustable anti-stick component includes a power-driven air pump 500, which is installed inside the adjusting top core 340. The output end of the air pump 500 is connected to a ring tube 510 via a pipe, and the input end of the air pump 500 extends to the outside of the adjusting top core 340 via a pipe. The ring tube 510 is installed inside the receiving cavity 352, and the output end of the ring tube 510 is connected to an airbag 520 via a pipe. The airbag 520 is installed inside the adjusting cavity 351, and its surface is connected to the surface of the flexible ring plate 350 via a pull rope. When the air pump 500 is working, it can draw air to inflate the airbag 520, causing the airbag 520 to expand and push the flexible ring plate 350 outward until the flexible ring plate 350 is perpendicular to the side wall of the adjusting top core 340.

[0043] Specifically, solenoid valves are installed on the inlet and outlet pipes of the air pump 500, as well as the output ends of the ring pipe 510 and the airbag 520, to control the flow of gas.

[0044] refer to Figures 14 to 17 As shown, the second embodiment of the adjustable anti-stick component includes an adjustable ring plate 600 and a push rod 660. The adjustable ring plate 600 is disposed in the receiving cavity 352. The inner surface of the adjustable ring plate 600 is connected to a push protrusion 610 for pushing the push rod 660. The other end of the push rod 660 is movably connected to the surface of the flexible ring plate 350 through a universal joint. When the adjustable ring plate 600 rotates, the push protrusion 610 can push the push rod 660 outward, and then the push rod 660 pushes the flexible ring plate 350 outward.

[0045] Furthermore, the surface of the adjusting core 340 is provided with multiple transverse grooves, and the push rod 660 is slidably disposed in the transverse grooves for installation.

[0046] The inner ring of the push-fit protrusion 610 is provided with a ring rod 620, such as Figure 16As shown, the ring rod 620 is fixedly installed in the inner cavity of the receiving cavity 352 by a support plate. A magnet 630 is slidably sleeved on one side of the outer surface of the ring adjustment plate 600, and an electromagnet 640 is also fixedly sleeved on the outer surface of the ring adjustment plate 600 and on the side of the magnet 630. The magnet 630 and the electromagnet 640 work together. According to the principle that like poles repel and unlike poles attract, the two like poles of the magnet 630 and the electromagnet 640 are arranged close to each other. When the electromagnet 640 is energized, it repels the magnet 630, allowing the magnet 630 to move on the surface of the ring rod 620, thereby causing the ring adjustment plate 600 to rotate slightly. In this way, the electromagnet 640 and the magnet 630 work together to cause the ring adjustment plate 600 to rotate slightly, and then the push protrusion 610 pushes the push rod 660 outward.

[0047] As a further optimization of this solution, an arc-shaped spring 650 is fitted onto the outer surface of the ring rod 620. One end of the arc-shaped spring 650 is mounted on the support plate that fixes the ring rod 620, and the other end of the arc-shaped spring 650 is connected to the surface of the magnet 630. Therefore, after the electromagnet 640 is de-energized, the magnet 630 can be reset by the arc-shaped spring 650.

[0048] like Figure 16 As shown, a connecting sleeve 661 is fixedly sleeved on one end of the surface of the push rod 660, while a connecting sleeve 663 is movably sleeved on the other end of the push rod 660. The outer wall of the connecting sleeve 663 is connected to the inner wall of the transverse groove on the adjusting top core 340. Specifically, a connecting spring 662 is provided on the opposite side of connecting sleeve 1 661 and connecting sleeve 2 663 and on the outer surface of push rod 660. The two ends of connecting spring 662 are fixedly connected to the opposite side of connecting sleeve 1 661 and connecting sleeve 2 663, respectively. When the inner wall of flexible ring plate 350 and adjusting top core 340 is in a vertical turntable, the ring adjusting plate 600 and the pushing protrusion 610 drive push rod 660 to move. Connecting sleeve 1 661 moves with it, while connecting spring 662 is compressed to store force. At this time, push rod 660 pushes flexible ring plate 350 to shift outward and keep it perpendicular to adjusting top core 340. After electromagnet 640 is de-energized and arc spring 650 drives push rod 660 to reset, connecting spring 662, without external force restraint, can drive push rod 660 to reset and drive flexible ring plate 350 to shift inward.

[0049] refer to Figure 18 and Figure 19As shown, the third embodiment of the adjustable anti-stick component includes an air pump 700, which is installed in the inner surface of the adjusting top core 340. The output end of the air pump 700 is connected to a ring tube 710, which is installed in the inner cavity of the receiving cavity 352. The surface of the ring tube 710 is connected to a plurality of push sleeves 720. The inner cavity of the push sleeve 720 is slidably connected to a push rod 730, and the other end of the push rod 730 is movably connected to the flexible ring plate 350 through a universal joint. In this embodiment, the surface of the adjusting top core 340 is provided with a hollow groove, and the push rod 730 is disposed in the hollow groove.

[0050] Specifically, the outer surface of the adjusting spring 740 is fitted with the adjusting spring 740, and the other end of the adjusting spring 740 is installed on the inner wall of the empty moving groove on the adjusting top core 340 in this embodiment through the plate. The pushing sleeve 730 is in sliding contact with the plate on the adjusting spring 740.

[0051] When the second air pump 700 is working, it can draw gas into the push sleeve 720 through the second annular pipe 710, causing the push sleeve rod 730 to move outward, while the adjusting spring 740 is compressed and stored. At this time, the push sleeve rod 730 pushes the flexible ring plate 350 outward, so that the flexible ring plate 350 remains perpendicular to the outer wall of the adjusting top core 340. After the gas in the second annular pipe 710 and the push sleeve 720 is discharged, there is no external force binding the adjusting spring 740, so the adjusting spring 740 can drive the push sleeve rod 730 to reset.

[0052] As a further optimization of this solution, the output end of the second air pump 700 is connected to an exhaust pipe, which can be used to discharge the gas inside the second ring pipe 710 and the push sleeve 720 to the outside.

[0053] Specifically, the working principle of this two-color injection mold is as follows: Multiple sets of fixed mold cores 100 and moving mold cores 200 are vertically symmetrically arranged and installed via fixed mold control console 110 and moving mold control console 210, respectively. The moving mold core 200 is driven by cylinder pushers 300 symmetrically installed along the axis on both sides of the surface of the moving mold control console 210. During operation, the moving mold core 200 moves and inserts relative to the fixed mold core 100 to form a sealed mold cavity. The fixed mold injection surface 101 is the top surface of the cavity, and the moving mold injection surface 201 is the bottom surface of the cavity. Subsequently, the cylinder pushers 300 operate, their output ends extending back to drive the connecting rod 310 and the bottom push plate 320 upwards, thereby pulling the push rod 330 and the connecting plate 331 upwards, pushing the adjusting top core 340, which is slidably installed above the inner cavity of the moving mold core 200, upwards, dividing the sealed mold cavity into a first-color injection cavity 410 and a second-color injection cavity 400. Simultaneously, the outer ring of the inner surface of the moving mold core 200... The sealing spacer 220 seals the edge of the first color injection cavity 410. The adjustable anti-stick component works to make the outer wall of the flexible ring plate 350 on the outer ring of the adjusting core 340 flush with the outer wall of the adjusting core 340 to serve as the side wall of the first color injection cavity 410. Then, the first color injection gun 130, which is installed through the surface of the fixed mold core 100, injects the mold material into the first color injection cavity 410 to complete the first color injection. After the first color injection, the adjusting core 340 is moved down to expose the second color injection cavity 400 by the cylinder pusher 300, connecting rod 310, bottom push plate 320, push rod 331 and connecting plate 331. The adjustable anti-stick component drives the flexible ring plate 350 to tilt into the adjusting cavity 351 of the adjusting core 340 to peel off from the first color mold part. Then, the second color injection gun 120 injects the mold material into the second color injection cavity 400 to complete the second color injection, and finally realizes the two-color injection of different materials.

[0054] It should be noted that the electronic components and models used in this invention can be selected according to actual needs. Furthermore, the power supply and principles of the electronic components and models used in this invention are clear to those skilled in the art and will not be described in detail here.

[0055] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0056] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A two-color injection mold, characterized in that, include: The fixed mold core (100) and the moving mold core (200) are provided, wherein the lower part of the inner cavity of the fixed mold core (100) is the fixed mold injection surface (101), and the upper part of the inner cavity of the moving mold core (200) is the moving mold injection surface (201). The moving mold core (200) can move relative to the fixed mold core (100) to form a sealed mold cavity. An adjusting top core (340) is slidably disposed above the inner cavity of the moving mold core (200) for dividing the sealed mold cavity into at least two mold cavities. The mold cavities after being divided by the adjusting top core (340) are the first color injection cavity (410) and the second color injection cavity (400), which are used for two-color injection molding. The outer ring of the surface of the adjusting top core (340) is provided with a flexible ring plate (350), the outer ring end of the adjusting top core (340) is provided with an adjusting cavity (351), and the inner surface of the adjusting top core (340) is provided with an adjustable anti-stick component, wherein the adjustable anti-stick component is used to pull the bottom of the flexible ring plate (350) to move. The adjustable anti-stick assembly includes a power-driven air pump (500), which is installed inside the adjustable top core (340). The output end of the air pump (500) is connected to a ring pipe (510) through a pipe, and the output end of the ring pipe (510) is connected to an airbag (520) through a pipe. The adjustable anti-stick component includes an air pump two (700), and the output end of the air pump two (700) is connected to an annular pipe two (710). The surface of the annular pipe two (710) is connected to a plurality of push sleeves (720), wherein the inner cavity of the push sleeve (720) is slidably connected to a push rod (730).

2. A two-color injection mold according to claim 1, characterized in that, The surface of the fixed mold core (100) is through-mounted with a first color injection gun (130) and a second color injection gun (120). The first color injection gun (130) and the second color injection gun (120) are used to inject into the first color injection cavity (410) and the second color injection cavity (400), respectively.

3. A two-color injection mold according to claim 2, characterized in that, The fixed mold core (100) and the moving mold core (200) are arranged in multiple sets vertically symmetrically. The multiple sets of fixed mold cores (100) are installed through the fixed mold control console (110), while the multiple sets of moving mold cores (200) are installed through the moving mold control console (210). The moving mold cores (200) are driven by cylinder pushers (300) that are symmetrically installed on both sides of the surface of the moving mold control console (210) along the axis.

4. A two-color injection mold according to claim 3, characterized in that, The output end of the cylinder pusher (300) is connected to a connecting rod (310), and the bottom of the two connecting rods (310) is connected to a bottom push plate (320). The surface of the bottom push plate (320) and the side opposite to the moving mold core (200) are connected to a push rod (330), which pushes the adjusting top core (340) to move.

5. A two-color injection mold according to claim 1, characterized in that, The adjustable anti-stick component includes a ring adjustment plate (600) and a push rod (660). The ring adjustment plate (600) is disposed in the storage cavity (352). The inner surface of the ring adjustment plate (600) is connected to a push protrusion (610) for pushing the push rod (660).

6. A two-color injection mold according to claim 5, characterized in that, The inner ring of the push-fit protrusion (610) is provided with a ring rod (620), and a magnet (630) is slidably sleeved on one side of the outer surface of the ring adjustment plate (600), while an electromagnet (640) is also fixedly sleeved on the outer surface of the ring adjustment plate (600) and on one side of the magnet (630).

7. A two-color injection mold according to claim 5, characterized in that, One end of the push rod (660) is fixedly fitted with a connecting sleeve one (661), while the other end of the push rod (660) is movably fitted with a connecting sleeve two (663); a connecting spring (662) is provided on the opposite side of the connecting sleeve one (661) and the connecting sleeve two (663) and on the outer surface of the push rod (660).

8. A two-color injection molding method, comprising the two-color injection mold as described in any one of claims 1-7, characterized in that, It also includes the following steps: S1: Mold assembly and injection molding are connected. The fixed mold core (100) is installed on the fixed mold control console (110), and the moving mold core (200) is installed on the moving mold control console (210). The feed ends of the first color injection gun (130) and the second color injection gun (120) are respectively connected to the discharge end of the injection molding machine. S2: The mold is closed to form a sealed mold cavity. The cylinder pusher (300) drives the moving mold core (200) to insert with the fixed mold core (100). The injection surface of the fixed mold (101) and the injection surface of the moving mold (201) cooperate to form a sealed mold cavity. The sealing spacer (220) seals the edge of the mold cavity. S3: The first color injection space is constructed by dividing the mold cavity. The movement of the cylinder pusher (300) eventually drives the push rod (330) to push the adjusting top core (340) to move upward, dividing the sealed mold cavity into the first color injection cavity (410) and the second color injection cavity (400); the adjustable anti-stick component controls the flexible ring plate (350) to move outward, forming the complete side wall of the first color injection cavity (410); S4: First color injection: Start the first color injection gun (130) and inject the first color mold material into the first color injection cavity (410) through its nozzle to complete the first color injection; S5: Adjust the mold cavity to construct the second color injection space. The cylinder pusher (300) drives the adjusting top core (340) to move down to expose the second color injection cavity (400). The adjustable anti-stick component controls the flexible ring plate (350) to tilt towards the adjusting cavity (351) and detach from the first color mold part. S6: Second color injection, start the second color injection gun (120), inject the second color mold material into the second color injection cavity (400) through its nozzle, and complete the second color injection; S7: Open the mold and remove the part. After the second color mold material cools and forms, the cylinder pusher (300) drives the moving mold core (200) to separate from the fixed mold core (100) and remove the two-color injection molded product.

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