Double-station double-color injection mold

Abstract

The utility model relates to the technical field of molds, and discloses a double-station double-color injection mold which comprises a movable mold and a fixed mold, a mold core assembly is arranged on the movable mold, the mold core assembly comprises a fixed mold core fixedly connected with a mold frame and a movable mold core horizontally sliding relative to the mold frame, and a demolding mechanism is arranged on the movable mold. Each demolding mechanism comprises a jacking component and a driving component, the jacking component is movably arranged relative to the movable mold and drives the mold core assemblies to be separated from each other to realize core pulling or to be closed and reset during movement, the driving component drives the jacking component to do reciprocating motion, and the demolding mechanism is arranged between each mold core assembly and the movable mold; each mold core assembly of the mold corresponds to one station, and each mold core assembly is provided with the demolding mechanism, so that the effect of step-by-step demolding according to process requirements is achieved, and the production efficiency is improved while the product quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a dual-station, dual-color injection mold. Background Technology

[0002] Chinese patent application CN208601863U discloses a front mold slider core-pulling demolding mechanism. The mechanism includes a V-shaped slider, which is disposed on the front mold base plate and can move closer to or away from the front mold plate following the guide movement of the front mold base plate. Core-pulling sliders are symmetrically arranged on both sides of the V-shaped slider. The core-pulling sliders are horizontally guided and slidably disposed on the front mold plate. The V-shaped slider and the core-pulling slider are respectively formed with mutually interlocking and guide sliding cooperation receiving grooves and protrusions. When the front mold base plate is separated from the front mold plate, the V-shaped slider moves away from the front mold plate and is driven by the cooperation of the receiving grooves and protrusions to move the two core-pulling sliders closer to the center. At this time, the core-pulling sliders are separated from the mold core, realizing core-pulling demolding.

[0003] The aforementioned demolding mechanism can be applied to single-station or multi-station applications, enabling simultaneous core pulling at all stations during mold opening to demold the product. However, when applied to progressive dies (molds with multiple stations arranged in sequence on the same mold base), the following problems arise: Due to the differences in cavities at each station, each process of the product requires different cooling times before proceeding to the next step. However, with the aforementioned demolding mechanism, all stations perform core pulling after mold opening. The uncooled product lacks cavity support, leading to product deformation and an increased defect rate. Therefore, to ensure product quality, molds using this demolding mechanism can only determine the mold opening time based on the station with the longest cooling time, resulting in reduced production efficiency. Utility Model Content

[0004] To address the shortcomings of existing progressive dies, which require determining the mold opening time based solely on the station with the longest cooling time during mold opening to prevent product deformation, the purpose of this invention is to provide a dual-station, dual-color injection mold that allows for step-by-step demolding according to different process requirements after mold opening.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A dual-station, dual-color injection mold is disclosed, comprising a moving mold and a fixed mold. A mold core assembly is provided on the moving mold, the mold core assembly including a fixed mold core fixedly connected to a mold frame and a movable mold core horizontally slidable relative to the mold frame. A demolding mechanism is provided on the moving mold, the demolding mechanism including a lifting component that is movably arranged relative to the moving mold and drives the mold core assemblies to separate from each other to achieve core pulling or repositioning when they are moving, and a driving component that drives the lifting component to reciprocate. At least two sets of mold core assemblies are provided, and a demolding mechanism is provided between each set of mold core assemblies and the moving mold.

[0007] Using the above solution, the mold in this solution is equipped with a drive component on the moving mold that can independently drive the lifting component to pull the core. This allows the product demolding action to be achieved without relying on the separation action of the moving mold and the fixed mold. In this solution, each mold core component corresponds to a different workstation and is equipped with the above-mentioned demolding mechanism. This enables each mold core component to perform step-by-step core pulling and demolding actions as needed. When the mold is opened, the demolding mechanism will not immediately pull the core for demolding. At this time, the product will first cool in the air for a period of time. It is not necessary to wait for the product that cools the slowest to cool completely before opening the mold. Furthermore, the operator can arrange the demolding sequence of each mold core component according to the cooling rate of the products at different workstations, and remove the products that cool faster first. This improves production efficiency while ensuring product quality.

[0008] Preferably, the moving mold includes a base plate and a mold frame mounted on the base plate for mounting the mold core assembly. The lifting component includes a lifting rod that is guided and lifted relative to the mold frame and a mating end formed at the end of the lifting rod and connected to the moving mold core. When the lifting rod rises, the mating end drives the moving mold core away from the fixed mold core for core pulling. When the lifting rod falls, the mating end drives the moving mold core closer to the fixed mold core for reset.

[0009] Preferably, the drive assembly includes a pin plate that is raised and lowered relative to the base plate and fixedly connected to the lifting rod, an elastic drive member for driving the pin plate to rise, and a telescopic drive member that is telescopically arranged relative to the pin plate. When the telescopic drive member extends, it drives the pin plate to fall, and when the telescopic drive member retracts, it leaves a stroke for the pin plate to rise.

[0010] Preferably, a pad is fixedly provided on the base plate for the ejector plate to abut when it descends. Opening slots are provided on both sides of the ejector plate and the pad. Telescopic drive components are distributed on both sides of the mold frame and a guide rod is connected to the telescopic end and snapped into the opening slot. An installation block is fixedly provided on the pad at the opening slot for the guide rod to pass through and guide the movement within a preset stroke.

[0011] Preferably, the elastic drive component includes a plurality of first springs evenly distributed between the pad and the ejector plate, and the telescopic drive component includes a hydraulic cylinder fixedly disposed on the outer wall of the mold frame, with the piston end of the hydraulic cylinder abutting against the ejector plate.

[0012] Using the above solution, the guide rod in this solution can stabilize the lifting path of the ejector plate; the ejector plate can evenly transmit the elastic force of the first spring to the lifting component to ensure the smooth operation of the core pulling process. This solution uses a pad to bear the weight of the ejector plate and the lifting component, thereby reducing the stress accumulation caused by the weight of the ejector plate and the lifting component on the mold frame and mold core assembly.

[0013] Preferably, each set of mold core components has workstations on both sides of the fixed mold core, and movable mold cores are symmetrically arranged on both sides of the fixed mold core. The lifting components are respectively connected to the two movable mold cores.

[0014] Preferably, the mating end includes inclined tie rod sections that extend upward at the end of the lifting rod and are symmetrically distributed, and the movable mold core is provided with mating grooves for guiding the insertion of the inclined tie rod sections.

[0015] Using the above solution, multiple stations of the same type can be set on a set of mold core components to process multiple products at once, thereby improving production efficiency.

[0016] Preferably, the demolding mechanism further includes wedges that are partially inserted between the movable mold cores when the mold core assembly is reset, and the fixed mold core has an inclined surface for the inclined side of the wedges to fit against, and a number of wedges are distributed at intervals along the movable mold core and connected to the fixed mold.

[0017] In the above scheme, the wedge is used to fill the position between the movable mold cores that is not in contact with the lifting component before the mold is processed, so as to balance the force between the movable mold cores and make the production process more stable. The inclined side of the wedge and the inclined surface on the movable mold core cooperate with each other so that the wedge can be inserted into the movable mold cores more smoothly. In addition, the wedge in this scheme can be directly connected to the fixed mold using fasteners such as screws, which has the advantage of convenient assembly.

[0018] Preferably, the demolding mechanism also includes wedges that are partially inserted between the movable mold cores when the mold core assembly is reset. Several wedges are distributed at intervals along the movable mold cores. The fixed mold core has an inclined surface for the wedges to fit against. A connecting rod is connected to the wedges, which passes through the mold frame and is driven to rise by the ejector plate during core pulling, causing the wedges to move away from the movable mold core. The mold frame has a positioning hole for the connecting rod to pass through. When the mold is closed, the wedges are driven by the fixed mold to fit against the inclined surface.

[0019] The above-mentioned scheme is the preferred solution for the wedge installation position. Since the wedge needs to be precisely inserted between the movable mold cores, previous schemes required ensuring the dimensional accuracy of the wedge itself, the installation accuracy of the wedge on the fixed mold, and the installation accuracy of the movable mold core on the moving mold to achieve the desired fit. In actual production, the moving and fixed molds are processed in two separate steps, each using its own reference system for tool setting and calibration. Errors easily occur when the reference systems differ. Furthermore, the fixed and moving molds may be processed on different machine tools, leading to potential errors between them. Both of these situations increase processing difficulty. This scheme, however, places the wedge installation position on the moving mold's mold frame. The fixed mold only needs to hold the wedge in place during mold closing. While the wedge installation difficulty in this scheme is higher than in previous schemes, the processing of the wedge installation position and the mold core installation position can be performed on the same machine tool and under the same reference system during mold frame processing, minimizing errors and reducing processing difficulty.

[0020] Preferably, a non-circular anti-rotation block is fixedly installed on the connecting rod, and a receiving groove is provided on the ejector plate for guiding the anti-rotation block into place. An elastic element is provided between the receiving groove and the anti-rotation block to ensure that there is always a gap between the wedge block and the movable mold core when the mold is in the open state.

[0021] Using the above scheme, when the mold core is pulled, the ejector plate rises, driving the elastic element and connecting rod to rise together, moving the wedge away from the movable mold core, so that the mold can perform the core pulling and demolding action. When resetting, the wedge falls naturally under the influence of gravity, and is pressed between the movable mold core by the fixed mold when the mold is closed. The cooperation between the anti-rotation block and the receiving groove can limit the large-scale rotation of the connecting rod in the positioning hole, preventing the wedge from deflecting due to the rotation of the connecting rod and failing to cooperate with the movable mold core. In this scheme, the function of the elastic element is to keep the wedge and the movable mold core in a non-contact state after the mold is opened and during the core pulling process, so as to prevent the contact between the wedge and the inclined surface from causing the core pulling action to be blocked or stuck.

[0022] This utility model has significant technical effects due to the adoption of the above technical solutions: the mold in this solution is equipped with multiple stations, and each station is equipped with a demolding mechanism that can independently pull the core to complete the demolding. After the mold is opened, the demolding mechanism will not immediately pull the core to demold. At this time, the product will cool in the air for a period of time. It is not necessary to wait for the product that cools the slowest to cool down before opening the mold. The operator can arrange the demolding sequence of each mold core component according to the cooling speed of the products at different stations, and take out the products that cool down faster first. This improves production efficiency while ensuring product quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of a dual-station, dual-color injection mold in the mold-closed state, as shown in Example 1.

[0024] Figure 2 yes Figure 1 A magnified view of a portion of A1;

[0025] Figure 3 yes Figure 1 A magnified view of a portion of A2 in the image;

[0026] Figure 4 This is a schematic diagram of the external structure of a dual-station, dual-color injection mold in the mold-opening state, as shown in Example 1.

[0027] Figure 5 yes Figure 4 A magnified view of B1 in the image;

[0028] Figure 6 yes Figure 4 A magnified view of part B2 in the image;

[0029] Figure 7 This is a top view of a dual-station, two-color injection mold in the mold-closed state in Example 1;

[0030] Figure 8 yes Figure 7 A sectional view of CC in the middle;

[0031] Figure 9 yes Figure 8 A magnified view of C1 in the image;

[0032] Figure 10 yes Figure 7 A sectional view of DD in the middle;

[0033] Figure 11 yes Figure 10 A magnified view of a portion of D1 in the image;

[0034] Figure 12 This is a top view of a dual-station, two-color injection mold in the mold-closed state in Example 2;

[0035] Figure 13 yes Figure 12 A sectional view of EE in the middle;

[0036] Figure 14 yes Figure 13 A magnified view of E1 in the image;

[0037] Figure 15 yes Figure 13 A magnified view of E2 in the image.

[0038] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Base plate; 2. Mold frame; 3. Fixed mold core; 4. Movable mold core; 5. Lifting rod; 6. Diagonal tie rod section; 7. Mating groove; 8. Ejector plate; 9. Pad plate; 10. Opening groove; 11. Guide rod; 1101. Ring-cut section; 12. Mounting block; 13. First spring; 14. Hydraulic cylinder; 1401. Piston end; 15. Wedge block; 16. Inclined surface; 17. Connecting rod; 18. Positioning hole; 19. Clearance hole; 20. Anti-rotation block; 21. Receiving groove; 22. Second spring; 23. Bolt. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Example 1

[0040] A dual-station, two-color injection mold, according to Figure 1 , 2 As shown in Figures 4 and 5, the system includes a moving mold and a fixed mold. Since the improvements in this embodiment do not involve the structure on the fixed mold, the fixed mold is not shown in the accompanying drawings. The moving mold includes a base plate 1, on which a mold frame 2 is provided. A mold core assembly is provided on the moving mold. The mold core assembly includes a fixed mold core 3 fixedly connected to the mold frame 2 and a movable mold core 4 horizontally sliding relative to the mold frame 2. When the movable mold core 4 slides away from the fixed mold core 3, it performs a core-pulling action. When the movable mold core 4 slides closer to the fixed mold core 3, it performs a reset. Each set of mold core assemblies forms workstations on both sides of the fixed mold core 3. The movable mold core 4 is symmetrically arranged on both sides of the fixed mold core 3. The above is the prior art and will not be described in detail in this embodiment.

[0041] The improvement in this embodiment is that a demolding mechanism is provided on the moving mold, according to... Figure 2 , 5 As shown in Figure 8, the demolding mechanism includes a lifting component that is movably arranged relative to the moving mold. The lifting component includes a lifting rod 5 that is guided and lifted relative to the mold frame 2. The end of the lifting rod 5 forms a mating end that connects to the movable mold core 4. The mating end is respectively mated and connected to the two movable mold cores 4. Figure 2 , 8 As shown, in this embodiment, the mating end includes inclined tie rod sections 6 that extend upwards at the end of the lifting rod 5 and are symmetrically distributed. The movable mold core 4 is provided with a mating groove 7 for the inclined tie rod sections 6 to be guided and inserted. When the lifting rod 5 rises, the mating end drives the movable mold core 4 away from the fixed mold core 3 to pull the core. When the lifting rod 5 falls, the mating end drives the movable mold core 4 closer to the fixed mold core 3 to reset. At least two sets of mold core assemblies are provided, and each set of mold core assemblies is provided with a demolding mechanism between it and the movable mold.

[0042] The lifting and lowering movement of the jacking components is controlled by the drive assembly, according to... Figure 1 , 3As shown in Figures 4 and 6, the driving assembly includes a pin plate 8 that is raised and lowered relative to the base plate 1 and fixedly connected to the lifting rod 5, an elastic driving member for driving the pin plate 8 to rise, and a telescopic driving member that is telescopically arranged relative to the pin plate 8. A pad 9 is fixedly provided on the base plate 1 for the pin plate 8 to abut against when it descends. In this embodiment, according to... Figure 8 , 9 As shown, the bottom of the lifting rod 5 is partially inserted into the ejector plate 8, and the two are fixedly connected by bolts 23. Figure 10 , 11 As shown, the elastic drive component includes a plurality of first springs 13 evenly distributed between the pad 9 and the ejector plate 8. The two ends of the first springs 13 are respectively embedded between the ejector plate 8 and the pad 9 and abut against both. The telescopic drive component includes a hydraulic cylinder 14 fixedly mounted on the outer wall of the mold frame 2. The piston end 1401 of the hydraulic cylinder 14 abuts against the ejector plate 8. The guide rod 11 is fixedly mounted on the piston end 1401 of the hydraulic cylinder 14. When the first springs 13 extend, they drive the ejector plate 8 to descend. When the piston end 1401 of the hydraulic cylinder 14 retracts, it leaves a stroke for the ejector plate 8 to rise.

[0043] according to Figure 1 , 3 4, 6, both sides of the ejector plate 8 and the pad plate 9 have opening slots 10. The telescopic drive components are distributed on both sides of the mold frame 2, and the telescopic ends are connected to guide rods 11 that are snapped into the opening slots 10. The pad plate 9 is fixedly provided with a mounting block 12 at the opening slot, through which the guide rods 11 pass and are guided within a preset stroke. Figure 3 , 6 As shown, in this embodiment, the guide rod 11 has a small-diameter circumferential section 1101. When the guide is inserted into the opening groove 10, the mounting block 12 is connected to the pad 9 and fits the circumferential section 1101, thereby restricting the guide rod 11 from leaving the opening groove 10 and achieving the purpose of guiding the guide rod 11 through.

[0044] according to Figure 2 , 5 As shown, the demolding mechanism also includes a wedge 15. When the mold core assembly is reset, the inclined side of the wedge 15 is partially inserted between the movable mold cores 4. The fixed mold core 3 has an inclined surface 16 for the inclined side of the wedge 15 to fit. Several wedges 15 are distributed at intervals along the movable mold core 4 and are connected to the fixed mold by bolts 23.

[0045] Based on the above structure, refer to Figures 1-11 The following describes the core-pulling, demolding, and resetting process of a dual-station, dual-color injection mold in this embodiment:

[0046] Demolding process: When the mold opens, the fixed mold moves the wedge block 15 away from the movable mold core 4, so that the mold core assembly has the conditions for core pulling. After the product has cooled for a period of time, the piston end 1401 of the oil cylinder 14 will retract to the preset stroke position. The ejector plate 8 will then retract the first spring 13 to drive the piston end 1401 to rise and lift the lifting component. During this process, the force that drives the lifting rod 5 to rise is transformed into the force that drives the movable mold core 4 to slide horizontally to the mutual closing state through the cooperation of the inclined tie rod section 6 and the movable mold core 4, so that the movable mold core 4 separates from the fixed mold core 3, and the core pulling demolding is completed.

[0047] Reset process: After the product is removed, the piston end 1401 of the oil cylinder 14 extends, driving the ejector plate 8 to descend and compressing and resetting the first elastic element. The descent of the ejector plate 8 drives the lifting component to descend as a whole. During this process, the force that drives the lifting rod 5 to descend is transformed into a force that drives the movable mold core 4 to slide horizontally to a state of separation through the cooperation of the inclined tie rod section 6 and the movable mold core 4, so that the movable mold core 4 and the fixed mold core 3 close together, thus achieving reset.

[0048] In this embodiment, the mold is equipped with a drive component on the moving mold that can independently drive the lifting component to pull the core. This allows the product demolding action to be achieved without relying on the separation action of the moving mold and the fixed mold. In this solution, each mold core component corresponds to a different workstation and is equipped with the aforementioned demolding mechanism. This enables each mold core component to perform step-by-step core pulling and demolding actions as needed. When the mold is opened, the demolding mechanism will not immediately pull the core for demolding. At this time, the product will first cool in the air for a period of time. It is not necessary to wait for the product that cools the slowest to cool completely before opening the mold. Furthermore, the operator can arrange the demolding sequence of each mold core component according to the cooling rate of the products at different workstations, and remove the products that cool faster first. This improves production efficiency while ensuring product quality. Example 2

[0049] Based on Example 1, this example further defines a dual-station, dual-color injection mold. Figure 12 , 13As shown in Figure 14, the demolding mechanism also includes wedges 15. When the mold core assembly is reset, the wedges 15 are partially inserted between the movable mold cores 4. Several wedges 15 are distributed at intervals along the movable mold cores 4. The fixed mold core 3 has an inclined surface 16 for the wedges 15 to fit against. A connecting rod 17 is connected to the wedges 15, which passes through the mold frame 2 and is driven upward by the drive assembly during core pulling, causing the wedges 15 to move away from the movable mold core 4. The mold frame 2 has a positioning hole 18 for the connecting rod 17 to pass through. The fixed mold frame 2 has a clearance hole 19 for the connecting rod 17 to pass through. A non-circular anti-rotation block 20 is fixedly installed on the connecting rod 17. The ejector plate 8 has a receiving groove 21 for guiding the anti-rotation block 20 into place. A space is provided between the receiving groove 21 and the anti-rotation block 20. There is an elastic element that ensures a gap between the wedge block 15 and the movable mold core 4 when the mold is in the open state. In this embodiment, both the receiving groove 21 and the anti-rotation block 20 are elliptical, and the size of the receiving groove 21 is slightly larger than that of the anti-rotation block 20. The elastic element includes a second spring 22 whose two ends abut against the receiving groove 21 and the anti-rotation block 20, respectively. When the mold is closed, the wedge block 15 is driven by the fixed mold to fit against the inclined surface 16. The connecting rod 17 is lowered by the wedge block 15, which drives the gap between the anti-rotation block 20 and the receiving groove 21 to decrease, compressing the second spring 22. When the mold is opened, the moving mold and the fixed mold are separated. The second spring 22 lifts the wedge block 15 so that there is a gap between it and the movable mold core 4. When the second spring 22 is at its maximum extension, the anti-rotation block 20 is still located in the receiving groove 21.

[0050] Based on the above structure, refer to Figures 12-15 It can be seen that the function of the second spring 22 in this embodiment is to keep the wedge block 15 and the movable mold core 4 in a non-contact state after the mold opens and during the core pulling process, so as to prevent the contact between the wedge block 15 and the inclined surface 16 from causing the core pulling action to be blocked or jammed. The installation position of the wedge block 15 is set on the mold frame 2 of the moving mold, and the fixed mold only needs to hold the wedge block 15 when the mold is closed. When machining the mold frame 2, the machining of the wedge block 15 installation position and the machining of the mold core installation position can be carried out on the same machine tool and the same reference system, which can minimize errors and reduce machining difficulty. Since the positioning of the connecting rod 17 is mainly on the mold frame 2, The ejector plate 8 and the mold base 2 also need to be processed separately, which also presents the problem of high processing difficulty. In this embodiment, the size of the receiving groove 21 is designed to be slightly larger than that of the anti-rotation block 20. The purpose is that when there is a slight deviation between the position of the positioning hole 18 and the receiving groove 21, the anti-rotation block 20 can at least partially abut against the inner wall of the receiving groove 21 to achieve the effect of preventing deflection. If the positioning hole 18 and the receiving groove 21 are aligned, the gap between the anti-rotation block 20 and the receiving groove 21 can only support a small amount of movement of the anti-rotation block 20, which has almost no impact on the use of the wedge block 15. This gives the receiving groove 21 a certain degree of fault tolerance and reduces the processing difficulty.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-station, dual-color injection mold, comprising a moving mold and a fixed mold, the moving mold comprising a base plate (1) and a mold frame (2) disposed on the base plate (1), a mold core assembly disposed on the moving mold, the mold core assembly comprising a fixed mold core (3) fixedly connected to the mold frame (2) and a movable mold core (4) horizontally sliding relative to the mold frame (2), characterized in that: The moving mold is provided with a demolding mechanism, which includes a lifting component that is movably arranged relative to the moving mold and drives the mold core components to separate from each other to achieve core pulling or repositioning when they are in motion, and a drive component that drives the lifting component to reciprocate. There are at least two sets of mold core components, and each set of mold core components is provided with a demolding mechanism between it and the moving mold.

2. A two-station two-color injection mold according to claim 1, characterized in that: The lifting component includes a lifting rod (5) that is guided and lifted relative to the mold frame (2) and a mating end formed at the end of the lifting rod (5) and connected to the movable mold core (4). When the lifting rod (5) rises, the mating end drives the movable mold core (4) away from the fixed mold core (3) to pull the core. When the lifting rod (5) falls, the mating end drives the movable mold core (4) closer to the fixed mold core (3) to reset.

3. A two-station two-color injection mold according to claim 2, characterized in that: The drive assembly includes a pin plate (8) that is raised and lowered relative to the base plate (1) and fixedly connected to the lifting rod (5), an elastic drive member for driving the pin plate (8) to rise, and a telescopic drive member that is telescopically arranged relative to the pin plate (8). When the telescopic drive member extends, it drives the pin plate (8) to fall, and when the telescopic drive member retracts, it leaves a stroke for the pin plate (8) to rise.

4. A two-station two-color injection mold in accordance with claim 3, wherein: A pad (9) is fixedly installed on the base plate (1) for the ejector plate (8) to abut when it descends. Opening slots (10) are provided on both sides of the ejector plate (8) and the pad (9). Telescopic drive components are distributed on both sides of the mold frame (2) and a guide rod (11) is connected to the telescopic end and snapped into the opening slot (10). An installation block (12) is fixedly installed on the pad (9) at the opening slot for the guide rod (11) to pass through and guide the movement within a preset stroke.

5. A two-station two-color injection mold in accordance with claim 3, wherein: The elastic drive component includes a plurality of first springs (13) evenly distributed between the pad (9) and the ejector plate (8), and the telescopic drive component includes a hydraulic cylinder (14) fixedly disposed on the outer wall of the mold frame (2), with the piston end (1401) of the hydraulic cylinder (14) abutting against the ejector plate (8).

6. A two-station two-color injection mold in accordance with claim 2, characterized in that: Each set of mold core components has a station formed on both sides of the fixed mold core (3), and the movable mold core (4) is symmetrically arranged on both sides of the fixed mold core (3). The lifting component is connected to the two movable mold cores (4) respectively.

7. A two-station two-color injection mold according to claim 6, characterized in that: The mating end includes an inclined tie rod section (6) that extends upward at the end of the lifting rod (5) and is symmetrically distributed. The movable mold core (4) has a mating groove (7) for guiding the insertion of the inclined tie rod section (6).

8. The dual-station two-color injection mold of any one of claims 1-7, wherein: The demolding mechanism also includes wedges (15) that are partially inserted between the movable mold cores (4) when the mold core assembly is reset. The fixed mold core (3) has an inclined surface (16) for the inclined side of the wedges (15) to fit against. Several wedges (15) are distributed at intervals along the movable mold core (4) and connected to the fixed mold.

9. A dual-station, two-color injection mold according to any one of claims 3 to 5, characterized in that: The demolding mechanism also includes wedges (15) that are partially inserted between the movable mold cores (4) when the mold core assembly is reset. Several wedges (15) are distributed at intervals along the movable mold cores (4). The fixed mold core (3) has an inclined surface (16) for the wedges (15) to fit against. A connecting rod (17) is connected to the wedges (15) through the mold frame (2) and is driven to rise by the drive assembly during core pulling, causing the wedges (15) to move away from the movable mold cores (4). The mold frame (2) has a positioning hole (18) for the connecting rod (17) to pass through. When the mold is closed, the wedges (15) are driven by the fixed mold to fit against the inclined surface (16).

10. A two-station two-color injection mold in accordance with claim 9, wherein: A non-circular anti-rotation block (20) is fixedly installed on the connecting rod (17). A receiving groove (21) is provided on the ejector plate (8) for guiding the anti-rotation block (20) into place. An elastic element is provided between the receiving groove (21) and the anti-rotation block (20) to ensure that there is always a gap between the wedge block (15) and the movable mold core (4) when the mold is in the mold opening state.

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