Double-color mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a double-color mold which comprises a mold base, a double-color injection molding machine is arranged on one side of the mold base in a matched mode, a fixed mold frame is fixedly connected to the portion, located on one side of the injection end of the double-color injection molding machine, of the upper surface of the mold base, and a fixed mold is detachably connected to the inner side of the fixed mold frame. A material injection opening formed in the back face of the fixed mold is connected with the discharging end of the double-colored injection molding machine in a communicating mode, and a movable mold frame is slidably arranged at the end, opposite to the double-colored injection molding machine, of the upper surface of the mold base. In the mold opening and closing process, the guide frame and the collecting frame can be driven to vibrate, so that products fall down and are uniformly dispersed, accumulation is avoided, the collecting effect is improved, meanwhile, the material collecting frame can be quickly disassembled and assembled, the material taking difficulty is effectively reduced, the material taking efficiency is improved, and the efficiency of the whole injection molding machining process is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically a two-color mold. Background Technology

[0002] Two-color molding involves injecting two different plastic materials onto the same injection molding machine, molding them in two stages, but the product only exits the mold once. This molding process is also generally called two-material injection molding, and it is usually completed using a single mold and requires a specialized two-color injection molding machine. Because two-material injection molding can result in a more aesthetically pleasing product appearance and facilitates color changes without the need for painting, it is increasingly popular in the market and has gained widespread application.

[0003] When demolding two-color molds, ejector pins are typically used to push out the cooled and formed products, allowing them to fall and be easily collected by workers. However, this process is prone to accidents as the mold is in operation and workers may come into contact with the products. To improve the collection efficiency and safety, existing two-color molds usually have a collection structure at the bottom to collect the falling products directly. However, in actual operation, because the falling parameters are similar, the falling products tend to accumulate in the collection structure, which can easily cause blockages. This prevents subsequent products from falling into the structure properly, requiring workers to frequently stop the machine to clean it, reducing both the convenience and efficiency of production. Therefore, we propose a new two-color mold. Utility Model Content

[0004] The main purpose of this utility model is to provide a two-color mold that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-color mold, including a mold base, a two-color injection molding machine is fitted on one side of the mold base, a fixed mold frame is fixedly connected to the upper surface of the mold base and to the side of the injection end of the two-color injection molding machine, a fixed mold is detachably connected to the inner side of the fixed mold frame, and the injection port on the back of the fixed mold is interconnected with the discharge end of the two-color injection molding machine, a movable mold frame is slidably provided on the upper surface of the mold base relative to one end of the two-color injection molding machine, a rotating disk is nested and rotatably provided inside the movable mold frame, a movable mold is detachably connected to the inner side of the rotating disk, a first servo motor is detachably nested on the back of the movable mold frame, and the power output end of the first servo motor is detachably connected to the center position of the back of the rotating disk, a material guiding assembly is nested in the inner cavity of the mold base, and drive assemblies for closing the fixed mold and the movable mold are provided on both sides of the bottom end of the fixed mold frame and the movable mold frame, and an eccentric wheel is provided on the surface of the power output end of the drive assembly and above one end of the material guiding assembly.

[0006] Preferably, the material guiding assembly includes a guide frame, a buffer pad, a telescopic rod, a first spring, and a collection frame. The guide frame is located in the inner cavity of the mold base below the moving mold frame, and the guide frame is inclined with its inclined surface facing the moving mold. The upper surface of the guide frame is provided with a buffer pad. The bottom corners of the guide frame are detachably connected to telescopic rods, and the bottom ends of the telescopic rods are detachably connected to the bottom end of the inner cavity of the mold base. The telescopic end of the telescopic rod is fitted with a first spring. The inner cavity of the guide frame is slidably fitted with a collection frame on one side relative to the buffer pad.

[0007] Preferably, a limiting component is provided at the center position of the bottom surface of the guide frame relative to the buffer pad on one side. The limiting component includes a limiting rod, a second spring, a limiting end, and a limiting plate. The limiting rod is fixedly connected to the center position of the bottom surface of the guide frame relative to the buffer pad on one side. The limiting end is fixedly connected to the outer wall of the limiting rod. The limiting plate is rotatably sleeved on one end surface of the limiting rod relative to the limiting end. The second spring is sleeved on the surface of the limiting rod on the outer side of the limiting plate, and the inner side of the second spring abuts against the limiting plate.

[0008] Preferably, the power output assembly includes a second servo motor and a drive screw. The second servo motor is detachably connected to both sides of the bottom end of the fixed mold frame facing the two-color injection molding machine. The power output end of the second servo motor is detachably connected to the drive screw through a coupling. Threaded connection holes are provided on both sides of the bottom end of the moving mold frame, and the bottom ends of the moving mold frame are threadedly connected to the surface of the drive screw through the threaded connection holes.

[0009] Preferably, the fixed mold frame has limit slide rods fixedly connected to both sides of the side facing the moving mold frame, and the upper surface of the moving mold frame is slidably sleeved on the surface of the limit slide rods.

[0010] Preferably, the upper surface of the guide frame below the eccentric wheel is provided with a corresponding arc-shaped groove.

[0011] Preferably, the surface of the two-color injection molding machine is equipped with a control panel, and both the first servo motor and the second servo motor are electrically connected to an external power source through a matching servo motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model utilizes a power output component, an eccentric wheel, a material guiding component, and a receiving frame in cooperation. During demolding, the second servo motor drives the drive screw to rotate counterclockwise, thereby moving the moving mold frame and the moving mold backward, separating it from the front mold. The cooled and formed product is ejected outward by the ejector pin and falls downward under gravity. The guide frame guides the falling product into the receiving frame. During the opening and closing of the fixed mold and the moving mold, the drive screw rotates, causing the eccentric wheel to rotate and impact the receiving frame back and forth. Under the action of the telescopic rod and the spring, the guide frame and the receiving frame vibrate up and down, thus vibrating the collected product. This effectively disperses and organizes the continuously entering product in the receiving frame, ensuring that the product is evenly distributed in the receiving frame. This effectively avoids local accumulation of product in the receiving frame, significantly improves the collection effect, and significantly reduces the collection difficulty, thereby indirectly but powerfully improving the efficiency of the entire injection molding process.

[0014] 2. This utility model utilizes a guide assembly, a collection frame, and a limiting assembly working together. The collection frame is slidably mounted on the bottom side of the guide frame. During collection, the limiting block on the limiting assembly, under the action of a spring, fits against the center of the bottom of the limiting frame. This, in conjunction with the guide frame, effectively limits the collection frame within the guide frame's inner cavity, ensuring efficient material collection. For material removal, the operator only needs to apply a certain force and rotate the limiting plate downwards. The limiting plate will then smoothly rotate around the limiting rod to the lower position, releasing the limiting effect on the collection frame. The operator can then quickly remove the collection frame from the guide frame by simply pulling it outwards. This achieves an efficient and convenient material removal process. The reverse operation enables rapid installation, allowing for quick assembly and disassembly of the collection frame, reducing material removal difficulty, further simplifying processing, and improving processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the material receiving assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the limiting component of this utility model.

[0018] In the diagram: 1. Two-color injection molding machine; 2. Mold base; 3. Fixed mold frame; 4. Moving mold frame; 5. Fixed mold; 6. Limiting slide bar; 7. First servo motor; 8. Rotary disk; 9. Moving mold; 10. Threaded connection hole; 11. Second servo motor; 12. Material guide assembly; 13. Eccentric wheel; 14. Drive screw; 15. Limiting assembly; 121. Guide frame; 122. Buffer pad; 123. Telescopic rod; 124. First spring; 125. Collection frame; 151. Limiting rod; 152. Second spring; 153. Limiting end; 154. Limiting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example

[0021] Please see Figure 1 - Figure 3 The illustration shows a two-color mold, including a mold base 2. A two-color injection molding machine 1 is mounted on one side of the mold base 2. A fixed mold frame 3 is fixedly connected to the upper surface of the mold base 2, on the side of the injection end of the two-color injection molding machine 1. A fixed mold 5 is detachably connected to the inner side of the fixed mold frame 3, and the injection port on the back of the fixed mold 5 is interconnected with the discharge end of the two-color injection molding machine 1. A movable mold frame 4 is slidably mounted on the upper surface of the mold base 2 relative to one end of the two-color injection molding machine 1. A rotating disk 8 is nested and rotatably mounted inside the movable mold frame 4. A movable mold is detachably connected to the inner side of the rotating disk 8. A first servo motor 7 is detachably nested on the back of the movable mold frame 4, and the power output end of the first servo motor 7 is... The mold base 2 is detachably connected to the center of the back of the rotating disk 8. The inner cavity of the mold base 2 is nested with a material guide assembly 12. The bottom sides of the fixed mold frame 3 and the moving mold frame 4 are provided with drive components for mold closing of the fixed mold and the moving mold. The power output end of the drive component and the surface above one end of the material guide assembly 12 are provided with an eccentric wheel 13. The rotating disk 8 is driven by the first servo motor 7 to drive the moving mold to rotate flexibly. With the help of the drive components at the bottom of the fixed mold frame 3 and the moving mold frame 4 and the eccentric wheel 13, the mold closing is achieved precisely. Combined with the material guide assembly 12, the material receiving is ensured to be smooth. It can efficiently complete two-color injection molding, realize the precise layer molding of plastics of different materials or colors, effectively reduce the difficulty of two-color injection molding, and improve the injection molding effect.

[0022] The material guiding assembly 12 includes a guide frame 121, a buffer pad 122, a telescopic rod 123, a first spring 124, and a collection frame 125. The guide frame 121 is located inside the mold base 2, below the moving mold frame 4, and is inclined with its inclined surface facing the moving mold 9. A buffer pad 122 is provided on the upper surface of the guide frame 121. Telescopic rods 123 are detachably connected to all four corners at the bottom of the guide frame 121, and the bottom end of the telescopic rod 123 is detachably connected to the bottom end of the inner cavity of the mold base 2. A first spring 124 is sleeved on the surface of the telescopic end of the telescopic rod 123. 4. A collection frame 125 is slidably sleeved on the inner cavity of the guide frame 121 relative to the side of the buffer pad 122. The inclined surface of the guide frame 121 guides the product to fall, and when the power output component drives the eccentric wheel 13 to rotate, it will hit the collection frame 125 back and forth. Under the action of the telescopic rod 123 and the spring, the guide frame 121 and the collection frame 125 vibrate up and down, thereby vibrating the collected product. This effectively disperses and organizes the products that continuously enter the collection frame 125, so that the products can be evenly laid in the receiving frame, effectively avoiding the situation of local accumulation of products in the receiving frame.

[0023] The guide frame 121 is provided with a limiting component 15 at the center of the bottom surface of one side of the guide frame 121 relative to the buffer pad 122. The limiting component 15 includes a limiting rod 151, a second spring 152, a limiting end 153, and a limiting plate 154. The limiting rod 151 is fixedly connected to the center of the bottom surface of one side of the guide frame 121 relative to the buffer pad 122. The limiting end 153 is fixedly connected to the outer wall of the limiting rod 151. One end of the limiting rod 151 relative to the limiting end 153 is... A limiting plate 154 is rotatably sleeved on the surface of the limiting rod 151 on the outer side of the limiting plate 154, and a second spring 152 is sleeved on the surface of the limiting rod 151 on the outer side of the limiting plate 154, and the inner side of the second spring 152 abuts against the limiting plate 154; by utilizing the elastic force of the second spring 152 on the limiting plate 154, in conjunction with the limiting end 153, the precise limiting and convenient picking and placing of the receiving frame are realized. This ensures that the product falls accurately into the receiving frame when receiving the material, and the limiting can be easily released when picking up the material, effectively improving the efficiency and convenience of product collection and picking.

[0024] The power output component includes a second servo motor 11 and a drive screw 14. The second servo motor 11 is detachably connected to both sides of the bottom end of the fixed mold frame 3 facing the two-color injection molding machine 1. The power output end of the second servo motor 11 is detachably connected to the drive screw 14 through a coupling. The bottom end of the moving mold frame 4 has threaded connection holes 10 on both sides, and the bottom end of the moving mold frame 4 is threadedly connected to the surface of the drive screw 14 through the threaded connection holes 10. By detachably connecting the second servo motor 11 to both ends of the surface of the mold base 2 and connecting its power output end to the drive screw 14 through a coupling, combined with the threaded connection between the bottom end of the moving mold frame 4 and the drive screw 14, and the guiding effect of the limit slide rod 6 on the moving mold frame 4, precise and stable control of the movement of the moving mold frame 4 and the moving mold is achieved, ensuring the accuracy and stability of the mold opening and closing action.

[0025] It should be noted that this utility model is a two-color mold. During injection molding, the control panel controls the second servo motor 11 to drive the drive screw 14 to rotate clockwise, which in turn drives the moving mold frame 4, which is threaded to it, and the inner moving mold to move towards the fixed mold, thus closing the mold. After mold closure, the two-color injection molding machine 1 injects molten plastic into the molding cavities of the fixed mold and the moving mold, thereby achieving injection molding. During demolding, the control panel starts the second servo motor 11, which drives the drive screw 14 to rotate counterclockwise. Under the action of the drive screw 14 and the limiting slide bar 6, the moving mold frame 4 smoothly moves the moving mold backward and separates from the fixed mold. The ejector pins inside the moving mold push the product out, and the product falls under the action of gravity. The product is received by the guide frame 121, and its buffer pad 122 protects the product. The product slides down the inclined guide frame 121 into the receiving frame. At the same time, during the opening and closing of the fixed mold and the moving mold, the drive screw 14 synchronously drives the eccentric wheel 13 to hit the receiving frame, causing the guide frame 121 to vibrate under the cooperation of the telescopic rod 123 and the first spring 124. This not only allows the product on the guide frame to fall during the vibration, but also disperses the product in the receiving frame to avoid accumulation. When the receiving frame is full, the operator can quickly release the limit plate 154 by turning it downwards, pull the receiving frame outwards to remove it, and reverse the operation to achieve quick installation. This effectively improves the convenience of replacement, reduces the difficulty of receiving, and improves processing efficiency.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A two-color mold, comprising a mold base (2), characterized in that: A two-color injection molding machine (1) is provided on one side of the mold base (2). A fixed mold frame (3) is fixedly connected to the upper surface of the mold base (2) and to the side of the injection end of the two-color injection molding machine (1). A fixed mold (5) is detachably connected to the inner side of the fixed mold frame (3), and the injection port on the back of the fixed mold (5) is interconnected with the discharge end of the two-color injection molding machine (1). A movable mold frame (4) is slidably provided on the upper surface of the mold base (2) relative to one end of the two-color injection molding machine (1). A rotating disk (8) is nested and rotated inside the movable mold frame (4). 8) A moving mold (9) is detachably connected to the inner side. A first servo motor (7) is detachably nested on the back of the moving mold frame (4). The power output end of the first servo motor (7) is detachably connected to the center position of the back of the rotating disk (8). A material guide assembly (12) is nested in the inner cavity of the mold base (2). A drive assembly for closing the fixed mold (5) and the moving mold (9) is provided on both sides of the bottom end of the fixed mold frame (3) and the moving mold frame (4). An eccentric wheel (13) is provided on the surface of the power output end of the drive assembly and located above one end of the material guide assembly (12).

2. A two-color mold according to claim 1, characterized in that: The material guiding assembly (12) includes a guide frame (121), a buffer pad (122), a telescopic rod (123), a first spring (124), and a collection frame (125). The guide frame (121) is provided in the inner cavity of the mold base (2) and below the moving mold frame (4). The guide frame (121) is inclined and the inclined surface of the guide frame (121) faces the moving mold. The upper surface of the guide frame (121) is provided with a buffer pad (122). The telescopic rod (123) can be detachably connected to the four corners of the bottom end of the guide frame (121). The bottom end of the telescopic rod (123) is detachably connected to the bottom end of the inner cavity of the mold base (2). The first spring (124) is sleeved on the telescopic end surface of the telescopic rod (123). The collection frame (125) is slidably sleeved on one side of the inner cavity of the guide frame (121) relative to the buffer pad (122).

3. A two-color mold according to claim 2, characterized in that: The guide frame (121) is provided with a limiting component (15) at the center of the bottom surface of one side of the buffer pad (122). The limiting component (15) includes a limiting rod (151), a second spring (152), a limiting end (153), and a limiting plate (154). The limiting rod (151) is fixedly connected to the center of the bottom surface of one side of the guide frame (121) relative to the buffer pad (122). The limiting end (153) is fixedly connected to the outer wall of the limiting rod (151). The limiting plate (154) is rotatably sleeved on one end surface of the limiting rod (151) relative to the limiting end (153). The second spring (152) is sleeved on the surface of the limiting rod (151) on the outer side of the limiting plate (154), and the inner side of the second spring (152) abuts against the limiting plate (154).

4. A two-color mold according to claim 1, characterized in that: The power output assembly includes a second servo motor (11) and a drive screw (14). The fixed mold frame (3) has a second servo motor (11) detachably connected to both sides of the bottom end of the side facing the two-color injection molding machine (1). The power output end of the second servo motor (11) is detachably connected to the drive screw (14) through a coupling. The bottom end of the moving mold frame (4) has threaded connection holes (10) on both sides, and the bottom end of the moving mold frame (4) is threaded to the surface of the drive screw (14) through the threaded connection holes (10).

5. A two-color mold according to claim 1, characterized in that: The fixed mold frame (3) is fixedly connected to the upper two sides of the side facing the moving mold frame (4), and the upper surface of the moving mold frame (4) is slidably sleeved on the surface of the limiting slide rod (6).

6. A two-color mold according to claim 1, characterized in that: The upper surface of the guide frame (121) below the eccentric wheel (13) is provided with a corresponding arc-shaped groove.

7. A two-color mold according to claim 1, characterized in that: The two-color injection molding machine (1) is equipped with a control panel on its surface, and the first servo motor (7) and the second servo motor (11) are electrically connected to an external power source through the servo motors provided.

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