Multi-injection-molding-opening type automobile injection molding part mold

Abstract

The utility model discloses a multi-injection molding mouth type automobile injection molding part mold, which relates to the technical field of injection molding and comprises a frame, a fixed mold is mounted in an inner cavity of the frame, a movable mold is mounted on one side of the fixed mold, a pushing plate is fixedly connected to the side wall of the movable mold, a fixed frame is fixedly connected to the top of the frame, and a movable mechanism is mounted on one side of the fixed frame. According to the utility model, the driving grooves with different radians on the surface of the rotating rod are utilized to apply acting force to the plurality of pushing blocks at the same time, so that the pushing blocks generate different moving distances, the sliding plate linearly moves along the first sliding rod and drives the moving frame and the injection molding head to slide on the track, and therefore, the injection molding head is dispersed and accurately butted with an injection port on a fixed mold; in addition, the number of the driving grooves can be flexibly adjusted so as to adapt to injection ports of different numbers and positions, rapid adaptation and butt joint are achieved, and the flexibility and efficiency of the injection molding process are improved through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a multi-injection molding die for automobile injection molding parts. Background Art

[0002] The automotive injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable mold plate of the injection molding machine, and the fixed mold is installed on the fixed mold plate of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product. The use of multiple injection ports can improve the injection efficiency and avoid the problem of product overflow and material shortage.

[0003] For example, publication number CN219055149U discloses an injection mold for injection molded parts, including a lower mold plate, a lower mold base, an upper mold base and an upper mold plate, the lower mold base is fixedly installed on the upper surface of the lower mold plate, the upper mold base is arranged above the lower mold base, the upper mold plate is fixedly installed on the upper surface of the upper mold base, the upper mold plate is the same size as the lower mold plate, a central cooling channel is opened at the center position inside the upper mold plate and the lower mold plate, transverse cooling channels are interconnected on both sides of the central cooling channel, and no less than two longitudinal cooling channels are interconnected above and below the two transverse cooling channels and located inside the mold plate.

[0004] However, in the prior art, the number and position of injection ports on the mold vary depending on the size of the injection molded parts or the size of the mold. Therefore, during the injection molding process, a matching feed assembly is required, which will affect the cost of the mold production and processing process. For different injection molded parts and molds, a matching feed assembly is required. However, this customized design and manufacturing process will increase the cost of mold production and processing, as well as the cost of replacing and maintaining the feed assembly. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that different molds need to be equipped with different feeding components to adapt to multiple injection ports, and proposes a multi-injection port type automobile injection mold.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-injection die type automobile injection mold, comprising a frame, a fixed mold is installed in the inner cavity of the frame, a movable mold is installed on one side of the fixed mold, a push plate is fixedly connected to the side wall of the movable mold, a fixed frame is fixedly connected to the top of the frame, and a movable mechanism is installed on one side of the fixed frame;

[0007] The movable mechanism includes a mounting frame, a rotating rod is rotatably connected to the center of the inner cavity of the mounting frame, a sliding plate is slidably connected to the surface of the rotating rod, a driving groove is opened on the surface of the rotating rod, and a pushing block is slidably connected inside the driving groove, the bottom of the pushing block is fixedly connected to the top of the sliding plate, one end of the sliding plate is fixedly connected to a movable frame, the movable frame is slidably connected to the mounting frame, the mounting frame is often fixedly connected to a track, the track is slidably connected to the movable frame, the side wall of the movable frame is fixedly connected to an injection molding head, and a first sliding rod is fixedly connected to the inner side of the mounting frame, and the first sliding rod is slidably connected to the sliding plate.

[0008] Preferably, a screw rod is rotatably connected to the inner side of the fixing frame, and a driving motor is installed on the top of the fixing frame, and the output end of the driving motor is fixedly connected to the screw rod.

[0009] Preferably, two second sliding bars are symmetrically arranged on the inner side of the fixing frame, and two ends of the second sliding bars are fixedly connected to the fixing frame and the frame respectively.

[0010] Preferably, a lifting block is threadedly connected to the surface of the screw rod, and both ends of the lifting block are slidably connected to the second sliding rod.

[0011] Preferably, one end of the lifting block passes through the fixing frame, and the lifting block is slidably connected to the fixing frame, and one end of the lifting block is fixedly connected to the side wall of the mounting frame.

[0012] Preferably, a hydraulic push rod is fixedly connected to the side wall of the frame, and an output end of the hydraulic push rod is fixedly connected to the side wall of the push plate.

[0013] Preferably, two limiting rods are symmetrically fixedly connected to the middle of the push plate, one end of the limiting rod passes through the frame, and one end of the frame is fixedly connected to a baffle, and the diameter of the baffle is larger than the aperture of the through hole on the surface of the frame.

[0014] Preferably, a plurality of springs are provided on one side of the push plate, and two ends of the springs are fixedly connected to the side wall of the push plate and the inner wall of the frame respectively.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] 1. In the utility model, by utilizing driving grooves with different curvatures on the surface of the rotating rod, a force can be applied to multiple push blocks at the same time, so that they have different moving distances, the sliding plate moves linearly along the first sliding rod, and drives the moving frame and the injection head to slide on the track, so that the injection head is dispersed and accurately docked with the injection port on the fixed mold. In addition, the number of driving grooves can be flexibly adjusted to adapt to injection ports of different numbers and positions, and rapid adaptation and docking can be achieved. This design improves the flexibility and efficiency of the injection molding process.

[0017] 2. In the utility model, the hydraulic push rod and the drive motor work together during the injection molding process to achieve accurate mold closing and efficient injection molding. The hydraulic push rod pushes the movable mold and the fixed mold to merge tightly to ensure the accurate formation of the cavity, while the drive motor drives the injection head to accurately connect with the injection port of the fixed mold to ensure the accuracy of injection molding. After the injection molding is completed, the hydraulic push rod pulls the movable mold and the fixed mold to separate, so that the injection molded parts can be easily dropped off, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model provides a schematic diagram of the overall three-dimensional structure of a multi-injection die type automobile injection mold;

[0019] Figure 2 A partial three-dimensional structural schematic diagram of a multi-injection die type automobile injection mold is provided for the utility model;

[0020] Figure 3 The utility model provides a three-dimensional structural schematic diagram of a movable mechanism in a multi-injection die type automobile injection mold;

[0021] Figure 4 The utility model provides a schematic diagram of the internal structure of a mounting frame of a multi-injection-mouth automobile injection mold.

[0022] Legend: 1. Frame; 11. Hydraulic push rod; 12. Limit rod; 13. Baffle; 14. Spring; 15. Push plate; 2. Fixed mold; 3. Moving mold; 4. Movable mechanism; 41. Mounting frame; 42. Injection head; 43. Rotating rod; 431. Driving slot; 44. Moving frame; 45. Sliding plate; 46. Pushing block; 47. First slide bar; 48. Track; 5. Driving motor; 51. Screw rod; 52. Lifting block; 53. Second slide bar; 6. Fixed frame. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Embodiment 1

[0026] like Figure 1-4As shown, the utility model provides a multi-injection die type automobile injection mold, including a frame 1, a fixed mold 2 is installed in the inner cavity of the frame 1, a movable mold 3 is installed on one side of the fixed mold 2, a push plate 15 is fixedly connected to the side wall of the movable mold 3, a fixed frame 6 is fixedly connected to the top of the frame 1, and a movable mechanism 4 is installed on one side of the fixed frame 6;

[0027] The movable mechanism 4 includes a mounting frame 41, a rotating rod 43 is rotatably connected to the center of the inner cavity of the mounting frame 41, a sliding plate 45 is slidably connected to the surface of the rotating rod 43, a driving groove 431 is opened on the surface of the rotating rod 43, a pushing block 46 is slidably connected inside the driving groove 431, the bottom of the pushing block 46 is fixedly connected to the top of the sliding plate 45, one end of the sliding plate 45 is fixedly connected to a moving frame 44, the moving frame 44 is slidably connected to the mounting frame 41, the mounting frame 41 is often fixedly connected to a track 48, the track 48 is slidably connected to the moving frame 44, the side wall of the moving frame 44 is fixedly connected to the injection head 42, the inner side of the mounting frame 41 is fixedly connected to a first sliding rod 47, and the first sliding rod 47 is slidably connected to the sliding plate 45.

[0028] The specific settings and functions of this embodiment are described in detail below. The rotating rod 43 is driven to rotate by an external drive device or a manual knob. The multiple driving grooves 431 with different curvatures on the surface of the rotating rod 43 can simultaneously apply forces to multiple push blocks 46. Since each push block 46 is subjected to different forces, the resulting moving distances are also different. When moving, the push block 46 drives the sliding plate 45 to move linearly along the first slide bar 47, and the first slide bar 47 plays a limiting role. In this process, the sliding plate 45 located in the middle of the rotating rod 43 moves a shorter distance, while the sliding plates 45 near the two ends move a longer distance, so that the multiple sliding plates 45 begin to disperse under the drive of the rotating rod 43 and maintain equal spacing.

[0029] The movement of the sliding plate 45 further drives the moving frame 44 to slide on the track 48, so that each injection head 42 is dispersed. This design enables the injection head 42 to achieve accurate docking when plugging with the injection port on the fixed mold 2. In addition, the number of driving grooves 431 on the rotating rod 43 can be adjusted accordingly according to the number of injection ports on the fixed mold 2. When the fixed mold 2 is replaced, the position of each injection port will also change. At this time, the rotation of the rotating rod 43 can be adjusted to adapt to the new injection port position to achieve rapid docking.

[0030] Embodiment 2

[0031] like Figure 1-3As shown, a screw rod 51 is rotatably connected to the inner side of the fixed frame 6, and a driving motor 5 is installed on the top of the fixed frame 6, and the output end of the driving motor 5 is fixedly connected to the screw rod 51. Two second slide rods 53 are symmetrically arranged on the inner side of the fixed frame 6, and the two ends of the second slide rod 53 are respectively fixedly connected to the fixed frame 6 and the frame 1. A lifting block 52 is threadedly connected to the surface of the screw rod 51, and both ends of the lifting block 52 are slidably connected to the second slide rod 53. One end of the lifting block 52 passes through the fixed frame 6, and the lifting block 52 is slidably connected to the fixed frame 6, and one end of the lifting block 52 is fixedly connected to the side wall of the mounting frame 41. A hydraulic push rod 11 is fixedly connected to the side wall of the frame 1, and the output end of the hydraulic push rod 11 is fixedly connected to the side wall of the push plate 15. Two limit rods 12 are symmetrically fixedly connected to the middle part of the push plate 15, one end of the limit rod 12 passes through the frame 1, and one end of the frame 1 is fixedly connected to a baffle 13, and the diameter of the baffle 13 is larger than the aperture of the through hole on the surface of the frame 1. A plurality of springs 14 are disposed on one side of the push plate 15 , and two ends of the springs 14 are fixedly connected to the side wall of the push plate 15 and the inner wall of the frame 1 , respectively.

[0032] The effect achieved by the entire embodiment is that the hydraulic push rod 11 plays a vital role in the injection molding process. When the hydraulic push rod 11 is started, its strong thrust will push the push plate 15 forward. This action makes the movable mold 3 and the fixed mold 2 merge tightly together to form the cavity required for injection molding. In this process, the spring 14 is stretched due to being squeezed, playing a role of buffering and resetting. At the same time, the movement of the push plate 15 also drives the two limit rods 12 to move synchronously. The two limit rods 12 work together with the baffle 13 to form a precise guiding mechanism to ensure that the push plate 15 always remains horizontal during the movement, thereby ensuring the accuracy of the mold clamping.

[0033] After the injection molding operation is completed, the hydraulic push rod 11 will operate in the reverse direction, pulling the push plate 15 to move backward. This action allows the movable mold 3 and the fixed mold 2 to separate smoothly, and the injection molded parts can be easily removed from the notch at the bottom of the frame 1, which is convenient for subsequent removal and processing.

[0034] In addition, the drive motor 5 also plays a role silently during the entire injection molding process. Its operation can drive the screw 51 to rotate, and the lifting block 52 on the surface of the screw 51 thus produces a lifting action. This lifting mechanism cleverly controls the up and down movement of the mounting frame 41, thereby ensuring that the injection head 42 can accurately dock with the injection port on the surface of the fixed mold 2. During the lifting and lowering process of the lifting block 52, it will also slide along the surface of the second slide bar 53, which further ensures the accuracy and efficiency of the injection molding process.

[0035] The use method and working principle of the device: the hydraulic push rod 11 is used to push the push plate 15 to make the movable mold 3 and the fixed mold 2 close together. During this process, the spring 14 is stretched, and the limit rod 12 and the baffle 13 work together to ensure the horizontal movement of the push plate 15. After the injection molding is completed, the hydraulic push rod 11 is reversed to separate the movable mold 3 from the fixed mold 2, and the injection molded part falls off easily from the bottom of the frame 1.

[0036] The driving motor 5 drives the screw rod 51 to rotate, driving the lifting block 52 to move up and down, thereby controlling the mounting frame 41 to move up and down, ensuring that the injection head 42 is accurately docked with the injection port of the fixed mold 2. The lifting block 52 slides on the second slide bar 53 to improve stability.

[0037] The rotating rod 43 is rotated by an external driving device or a manual knob, and the driving grooves 431 with different arcs on its surface exert different forces on the push blocks 46, resulting in different movement distances of each push block 46. The sliding plates 45 move along a straight line under the limitation of the first sliding rod 47, with the middle sliding plate 45 moving a short distance and the two ends moving a long distance, so that the sliding plates 45 are dispersed and kept equidistant.

[0038] The sliding plate 45 drives the moving frame 44 to slide on the track 48, thereby dispersing each injection head 42 to ensure accurate docking with the injection port of the fixed mold 2. The number of driving slots 431 on the rotating rod 43 can be adjusted according to the number of injection ports. After replacing the fixed mold 2, the rotation of the rotating rod 43 can be adjusted to quickly adapt to the new injection port position.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A multi-injection die type automobile injection mold, comprising a frame (1), a fixed mold (2) is installed in the inner cavity of the frame (1), a movable mold (3) is installed on one side of the fixed mold (2), and a push plate (15) is fixedly connected to the side wall of the movable mold (3), characterized in that: The top of the frame (1) is fixedly connected to a fixing frame (6), and a movable mechanism (4) is installed on one side of the fixing frame (6); The movable mechanism (4) comprises a mounting frame (41), wherein a rotating rod (43) is rotatably connected to the center of the inner cavity of the mounting frame (41), a sliding plate (45) is slidably connected to the surface of the rotating rod (43), a driving groove (431) is provided on the surface of the rotating rod (43), a pushing block (46) is slidably connected inside the driving groove (431), the bottom of the pushing block (46) is fixedly connected to the top of the sliding plate (45), one end of the sliding plate (45) is fixedly connected to a moving frame (44), the moving frame (44) is slidably connected to the mounting frame (41), the mounting frame (41) is fixedly connected to a track (48), the track (48) is slidably connected to the moving frame (44), the side wall of the moving frame (44) is fixedly connected to an injection molding head (42), the inner side of the mounting frame (41) is fixedly connected to a first sliding rod (47), and the first sliding rod (47) is slidably connected to the sliding plate (45).

2. A multi-injection die type automobile injection mold according to claim 1, characterized in that: A screw rod (51) is rotatably connected to the inner side of the fixed frame (6), and a driving motor (5) is installed on the top of the fixed frame (6), and the output end of the driving motor (5) is fixedly connected to the screw rod (51).

3. The multi-injection die type automobile injection mold according to claim 1, characterized in that: Two second sliding rods (53) are symmetrically arranged on the inner side of the fixing frame (6), and two ends of the second sliding rods (53) are fixedly connected to the fixing frame (6) and the frame (1) respectively.

4. The multi-injection die type automobile injection mold according to claim 2, characterized in that: A lifting block (52) is threadedly connected to the surface of the screw rod (51), and both ends of the lifting block (52) are slidably connected to the second sliding rod (53).

5. The multi-injection die type automobile injection mold according to claim 4, characterized in that: One end of the lifting block (52) passes through the fixing frame (6), and the lifting block (52) is slidably connected to the fixing frame (6), and one end of the lifting block (52) is fixedly connected to the side wall of the mounting frame (41).

6. The multi-injection die type automobile injection mold according to claim 1, characterized in that: A hydraulic push rod (11) is fixedly connected to the side wall of the frame (1), and an output end of the hydraulic push rod (11) is fixedly connected to the side wall of the push plate (15).

7. The multi-injection die type automobile injection mold according to claim 1, characterized in that: Two limiting rods (12) are symmetrically fixedly connected to the middle of the push plate (15), one end of the limiting rod (12) passes through the frame (1), and one end of the frame (1) is fixedly connected to a baffle (13), the diameter of the baffle (13) being larger than the diameter of the through hole on the surface of the frame (1).

8. The multi-injection die type automobile injection mold according to claim 1, characterized in that: A plurality of springs (14) are provided on one side of the push plate (15), and two ends of the springs (14) are respectively fixedly connected to the side wall of the push plate (15) and the inner wall of the frame (1).

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