Positioning mechanism of injection mold

Abstract

The utility model provides a positioning mechanism of an injection mold, which relates to the technical field of injection molds and comprises a platform, and an electric push rod is arranged at the top of the platform close to the left side. When the injection mold is positioned, the electric push rod is started, the electric push rod drives the two fixing blocks to move towards the right side at the same time, under the limiting of the limiting block and the limiting rod, the lower mold can be flexibly and automatically adjusted in the front-back direction until the lower mold is pushed to the positions of the two second mounting seats to be converged, and the position of the lower mold is fixed; the hydraulic cylinder is started, the hydraulic cylinder drives the upper die to move downwards until the upper die is converged with the position of the lower die, and when the four rolling wheels are close to each other, the lower die is extruded in a symmetrical state to rotate in a self-adaptive manner, so that the lower die can be accurately fixed in a proper state without being accurately adjusted, the operation difficulty is reduced, and the production efficiency is improved. And the positioning accuracy is improved, so that the overall injection molding efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a positioning mechanism for an injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine. After cooling and solidification, a molded product is obtained. When the injection mold is closed, a positioning auxiliary mechanism is required to ensure that the upper and lower molds can be accurately closed.

[0003] In the prior art, when performing injection molding on the mold, in order to ensure accurate mold closing, the movable lower mold position needs to be adjusted to a precise position and then fixed. The whole operation is rather cumbersome and the convenience of use is poor, resulting in a decrease in the overall injection molding efficiency. Therefore, in response to the above problems, we propose a new type of positioning mechanism for the injection mold. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that when the mold is injected, in order to ensure accurate mold closing, the position of the movable lower mold needs to be adjusted to a precise position and then fixed, the whole operation is cumbersome, the convenience of use is poor, and the overall injection molding efficiency is reduced, and a positioning mechanism for the injection mold is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning mechanism for an injection mold, comprising a platform, an electric push rod is arranged at a position near the left side of the top of the platform, a first mounting frame is movably connected to a position near the middle of the top of the platform, the telescopic end of the electric push rod is fixedly connected to the first mounting frame, a fixing block is fixedly connected to the top of the first mounting frame near the front and rear sides, two limit rods are fixedly connected between the outer surfaces of the two fixing blocks, a second mounting frame is fixedly connected to the top of the platform near the middle, and two second mounting seats are fixedly connected to the top of the platform near the right side.

[0006] Preferably, the two second mounting seats correspond to the positions of the second mounting frame, a lower mold is provided on the top of the second mounting frame, and L-shaped brackets are fixedly connected to both sides of the platform.

[0007] Preferably, a U-shaped frame is fixedly connected to the top of the platform, and a hydraulic cylinder is provided on the top of the U-shaped frame.

[0008] Preferably, the telescopic end of the hydraulic cylinder slides through the top of the U-shaped frame and extends downward, and the telescopic end of the hydraulic cylinder is fixedly connected to the upper mold.

[0009] Preferably, a limiting block is fixedly connected to a position near the middle of the top of the first mounting frame, and the outer surface of the limiting block is slidably fitted with the inner surface wall of the first mounting seat.

[0010] Preferably, two first fixed shafts are fixedly connected to the top of the first mounting seat near the right side, and the bottom ends of the two first fixed shafts are rotatably connected to first rollers.

[0011] Preferably, the tops of the two second mounting seats are fixedly connected to second fixed shafts near the left side, the bottom ends of the two second fixed shafts are rotatably connected to second rollers, and the position of the lower mold corresponds to the first roller and the second roller.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when positioning the injection mold, the electric push rod is turned on, and the electric push rod drives the two fixed blocks to move to the right at the same time. Under the limit of the limit block and the limit rod, the lower mold can be flexibly and automatically adjusted in the front and rear directions until it is pushed to the position of the two second mounting seats to merge. The position of the lower mold is fixed, and then the hydraulic cylinder is turned on, and the hydraulic cylinder drives the upper mold to move downward until it merges with the position of the lower mold. When the four rollers are approaching, they will squeeze the lower mold in a symmetrical state to make it rotate adaptively, so that the lower mold does not need to be precisely adjusted and can be accurately fixed to a suitable state, which reduces the difficulty of operation and improves the accuracy of positioning, thereby greatly improving the overall injection molding efficiency.

[0014] 2. In the utility model, when the injection mold is positioned, when the two first rollers installed on the two first fixed shafts move to the right, the lower mold will be pushed to the right until the lower mold is pushed to the position of the two second rollers and then stops. Since the two second rollers installed on the two second fixed shafts are in fixed positions, when the two first rollers and the two second rollers are approaching, they will squeeze the lower mold in a symmetrical state to make it rotate adaptively, so that the lower mold does not need to be precisely adjusted and can be accurately fixed to a suitable state, which reduces the difficulty of operation and improves the accuracy of positioning. In this way, the position of the lower mold can be effectively and accurately fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a positioning mechanism for an injection mold is provided for the utility model;

[0016] Figure 2 A cross-sectional view of a positioning mechanism of an injection mold is provided for the utility model;

[0017] Figure 3 A partial structural stereogram of a positioning mechanism of an injection mold proposed by the utility model;

[0018] Figure 4 The utility model provides a partial structural development diagram of a positioning mechanism of an injection mold.

[0019] Legend: 1. Platform; 11. U-shaped frame; 2. L-shaped bracket; 3. Hydraulic cylinder; 31. Upper mold; 32. Lower mold; 4. Electric push rod; 41. First mounting frame; 42. Fixed block; 43. Limit block; 44. Limit rod; 5. First mounting seat; 51. First fixed shaft; 52. First roller; 6. Second mounting frame; 61. Second mounting seat; 62. Second fixed shaft; 63. Second roller. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides Figure 1 As shown, a positioning mechanism for an injection mold comprises a platform 1, an electric push rod 4 is arranged at a position near the left side of the top of the platform 1, a first mounting frame 41 is movably connected to a position near the middle of the top of the platform 1, a telescopic end of the electric push rod 4 is fixedly connected to the first mounting frame 41, a fixing block 42 is fixedly connected to the top of the first mounting frame 41 near the front and rear sides, two limiting rods 44 are fixedly connected between the outer surfaces of the two fixing blocks 42, a second mounting frame 6 is fixedly connected to the top of the platform 1 near the middle, and two second mounting frames are fixedly connected to the top of the platform 1 near the right side. Mounting seat 61, the two second mounting seats 61 correspond to the positions of the second mounting frame 6, a lower mold 32 is arranged on the top of the second mounting frame 6, L-shaped brackets 2 are fixedly connected on both sides of the platform 1, a U-shaped frame 11 is fixedly connected on the top of the platform 1, a hydraulic cylinder 3 is arranged on the top of the U-shaped frame 11, the telescopic end of the hydraulic cylinder 3 slides through the top of the U-shaped frame 11 and extends to the bottom, the telescopic end of the hydraulic cylinder 3 is fixedly connected to the upper mold 31, and a limiting block 43 is fixedly connected to the top of the first mounting frame 41 near the middle, and the outer surface of the limiting block 43 slides and fits with the inner surface wall of the first mounting seat 5.

[0023] The effect achieved by the entire embodiment 1 is that when positioning the injection mold, the electric push rod 4 on the platform 1 is first turned on. Under the action of the electric push rod 4, the movable first mounting frame 41 will drive the two fixed blocks 42 to move to the right at the same time. Under the dual limiting action of the limiting block 43 and the limiting rod 44, the first mounting seat 5 can be moved to the right while also flexibly and automatically adjusting the front and rear positions of the lower mold 32 until it is pushed to the position where it merges with the two second mounting seats 61 on the right side, and the position of the lower mold 32 is fixed. At this time, the hydraulic cylinder 3 on the U-shaped frame 11 is turned on. Under the action of the hydraulic cylinder 3, the upper mold 31 will move downward until it merges with the position of the lower mold 32. In this way, the position of the lower mold 32 can be effectively and accurately fixed, thereby simplifying the entire operation and having a high degree of automation, thereby greatly improving the overall injection molding efficiency. The L-shaped bracket 2 is used to improve the stability of the platform 1, and the second mounting frame 6 is used to keep the lower mold 32 and the first mounting frame 41 on the same horizontal plane.

[0024] Embodiment 2, as Figure 1-Figure 4 As shown, two first fixed shafts 51 are fixedly connected to the top of the first mounting seat 5 near the right side, and the bottom ends of the two first fixed shafts 51 are rotatably connected to the first rollers 52. Two second mounting seats 61 are fixedly connected to the top of the second mounting seats 61 near the left side, and the bottom ends of the two second fixed shafts 62 are rotatably connected to the second rollers 63. The position of the lower mold 32 corresponds to the first rollers 52 and the second rollers 63.

[0025] The effect achieved by the entire embodiment 2 is that when the injection mold is positioned, when the two first rollers 52 installed on the two first fixed shafts 51 move to the right, the lower mold 32 will be pushed to the right until the lower mold 32 is pushed to the position of the two second rollers 63 and then stops. Since the two second rollers 63 installed on the two second fixed shafts 62 are in fixed positions, when the two first rollers 52 and the two second rollers 63 are approaching, they will squeeze the lower mold 32 in a symmetrical state to make it rotate adaptively, so that the lower mold 32 does not need to be precisely adjusted and can be accurately fixed to a suitable state, thereby reducing the difficulty of operation and improving the accuracy of positioning.

[0026] Working principle: When positioning the injection mold, first turn on the electric push rod 4 on the platform 1. Under the action of the electric push rod 4, the movable first mounting frame 41 will drive the two fixed blocks 42 to move to the right at the same time. Under the dual limiting action of the limiting block 43 and the limiting rod 44, the first mounting seat 5 can be moved to the right while also flexibly and automatically adjusting the front and rear positions of the lower mold 32 until it is pushed to the position where it merges with the two second mounting seats 61 on the right side, and the position of the lower mold 32 is fixed. At this time, turn on the hydraulic cylinder 3 on the U-shaped frame 11. Under the action of the hydraulic cylinder 3, the upper mold 31 will move downward until it merges with the position of the lower mold 32, so that the position of the lower mold 32 can be effectively obtained. Accurate fixation simplifies the entire operation and has a high degree of automation, which can greatly improve the overall injection molding efficiency. When the two first rollers 52 installed on the two first fixed shafts 51 move to the right, the lower mold 32 will be pushed to the right until the lower mold 32 is pushed to the position of the two second rollers 63 and then stops. Since the two second rollers 63 installed on the two second fixed shafts 62 are in fixed positions, when the two first rollers 52 and the two second rollers 63 are approaching, they will squeeze the lower mold 32 in a symmetrical state to make it rotate adaptively, so that the lower mold 32 does not need to be precisely adjusted and can be accurately fixed to a suitable state, which reduces the difficulty of operation and improves the accuracy of positioning.

[0027] 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 positioning mechanism for an injection mold, comprising a platform (1), characterized in that: An electric push rod (4) is arranged near the left side of the top of the platform (1); a first mounting frame (41) is movably connected near the middle of the top of the platform (1); the telescopic end of the electric push rod (4) is fixedly connected to the first mounting frame (41); a fixing block (42) is fixedly connected to the top of the first mounting frame (41) near the front and rear sides; two limit rods (44) are fixedly connected between the outer surfaces of the two fixing blocks (42); a second mounting frame (6) is fixedly connected to the middle of the top of the platform (1); and two second mounting seats (61) are fixedly connected to the top of the platform (1) near the right side.

2. The positioning mechanism for the injection mold according to claim 1, characterized in that: The two second mounting seats (61) correspond to the positions of the second mounting frame (6); a lower mold (32) is arranged on the top of the second mounting frame (6); and L-shaped brackets (2) are fixedly connected to both sides of the platform (1).

3. The positioning mechanism of the injection mold according to claim 2, characterized in that: A U-shaped frame (11) is fixedly connected to the top of the platform (1), and a hydraulic cylinder (3) is arranged on the top of the U-shaped frame (11).

4. The positioning mechanism of the injection mold according to claim 3, characterized in that: The telescopic end of the hydraulic cylinder (3) slides through the top of the U-shaped frame (11) and extends to the bottom, and the telescopic end of the hydraulic cylinder (3) is fixedly connected to the upper mold (31).

5. The positioning mechanism for the injection mold according to claim 4, characterized in that: A limiting block (43) is fixedly connected to a position near the middle of the top of the first mounting frame (41), and the outer surface of the limiting block (43) is slidably fitted with the inner surface wall of the first mounting seat (5).

6. The positioning mechanism for the injection mold according to claim 5, characterized in that: Two first fixed shafts (51) are fixedly connected to the top of the first mounting seat (5) near the right side, and the bottom ends of the two first fixed shafts (51) are rotatably connected to first rollers (52).

7. The positioning mechanism for the injection mold according to claim 6, characterized in that: The tops of the two second mounting seats (61) are fixedly connected to second fixed shafts (62) near the left side, and the bottoms of the two second fixed shafts (62) are rotatably connected to second rollers (63), and the position of the lower mold (32) corresponds to the first roller (52) and the second roller (63).

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