Quick positioning device for replacing injection mold

Abstract

The utility model relates to the injection mold industry, in particular to a quick positioning device for replacing an injection mold. Comprising a base, an L-shaped guide block I and an L-shaped guide block II are arranged at the two ends of the base, screw holes are formed in a main body of the base at intervals, the fixing groove is formed in the main body of the base, and the shape and the size of the stop block I and the stop block II are matched with those of a mold cavity of an injection molding machine. The check block I and the check block II are arranged at the two ends of the fixing groove respectively; counter bores are respectively formed in the stop block I and the stop block II; two through holes are formed in the fixing groove in the base, and the two through holes correspond to the two counter bores respectively. L-shaped guide blocks are arranged at the two ends of the device, when a mold is suspended in a machine tool, a fixed mold plate of the mold is slowly lapped on the upper end face of the device, the left edge and the right edge of the mold make contact with the L-shaped guide blocks, and the position and the angle of the mold are calibrated in the guide process. And the mold is quickly positioned without recognizing the position of the positioning ring by human eyes.

Description

Technical Field

[0001] The utility model relates to the injection mold industry, in particular to a quick positioning device for replacing an injection mold. Background Art

[0002] During injection production, it is necessary to frequently replace molds on the same machine. The mold change time is more than 60 minutes, and the machine has 60 minutes of idle time, resulting in waste of production capacity.

[0003] During the mold change process, the mold to be mounted is lifted by a crane. The angles in the XY directions are not restricted, and the accuracy of the crane in the Z direction is 5 mm. The positioning ring of the mold is manually visually aligned with the fixed template of the injection molding machine. It is inconvenient to control the up, down, left, right and angles. Neither the mold positioning ring nor the fixed template of the injection molding machine table is designed with a guiding structure. By manual visual inspection, it is impossible to align correctly at one time, the operation accuracy is insufficient, time is wasted, and quality problems are affected. Due to the 0.2 mm clearance between the positioning ring and the machine tool, and the nozzle of the machine table is 2.5 mm (taking an 80-ton device as an example), if the mold and the injection molding machine table are not aligned, mold leakage will occur, the products will be unqualified, and the mold needs to be lifted again. The product quality, mold change time and machine adjustment time will be affected. Summary of the Invention

[0004] In view of the complexity of the existing mold and injection molding machine table for mold change. The utility model provides a quick positioning device for replacing an injection mold. The two ends of the device are L-shaped guiding blocks. When the mold is suspended in the machine tool, the fixed template of the mold slowly rests on the upper end surface of the device, and the left and right edges of the mold contact the L-shaped guiding blocks. During the guiding process, the position and angle of the mold are calibrated. The mold is quickly positioned without relying on the human eye to identify the position of the positioning ring.

[0005] The technical solution of the utility model is: a quick positioning device for replacing an injection mold, including a base, and the two ends of the base are L-shaped guiding block Ⅰ and guiding block Ⅱ, and screw holes are arranged at intervals on the main body of the base.

[0006] Further, it also includes a stop block Ⅰ, a stop block Ⅱ and a fixing groove. The fixing groove is arranged inside the main body of the base. The shapes and sizes of the stop block Ⅰ and the stop block Ⅱ are adapted to the mold cavity of the injection molding machine. The stop block Ⅰ and the stop block Ⅱ are respectively arranged at both ends of the fixing groove; counterbores are respectively arranged on the stop block Ⅰ and the stop block Ⅱ; two through holes are arranged in the fixing groove on the base, and the two through holes respectively correspond to the two counterbores.

[0007] The beneficial effects of the present utility model are as follows: Since the two ends of the device are L-shaped guiding blocks, when the mold is suspended in the machine tool, the fixed template of the mold slowly rests on the upper end surface of the device, and the left and right edges of the mold contact the L-shaped guiding blocks. During the guiding process, the position and angle of the mold are calibrated, and the mold is quickly positioned without relying on the human eye to identify the position of the positioning ring. The base is provided with a fixing groove and screw holes, and different specifications of stoppers can be installed to adapt to molds of different sizes. The stopper and the base are connected by a positioning pin and can be replaced in a short time to achieve the effect of quickly replacing molds of different sizes on the same machine tool. Description of the Drawings

[0008] Figure 1 is a schematic structural diagram of the present utility model;

[0009] Figure 2 is a schematic structural diagram of the present utility model when using a small mold;

[0010] Figure 3 is Figure 2 an exploded view of;

[0011] Figure 4 is a schematic diagram of the present utility model when placed in a small mold cavity;

[0012] Figure 5 is a schematic diagram of positioning the small mold of the present utility model;

[0013] Figure 6 is a schematic diagram of the present utility model when placed in a large mold cavity;

[0014] Figure 7 is Figure 6 a sectional view taken along the A-A direction in;

[0015] Figure 8 is a schematic diagram of positioning the large mold;

[0016] Figure 9 is a schematic diagram of the mold positioning ring entering the fixed template of the injection molding machine.

[0017] In the figure: 1. Base, 1-1. Guide block Ⅰ, 1-2. Guide block Ⅱ; 2-1. Stopper Ⅰ, 2-2. Stopper Ⅱ; 3. Positioning pin; 4. Counterbore; 5. Through hole; 6. Fixing groove; 7. Screw hole; 8. Bolt; 9. Injection molding machine template; 10. Mold, 10-1. Mold positioning ring. Detailed Embodiment

[0018] Such as Figure 1As shown in the figure, a quick positioning device for replacing an injection mold includes a base 1. An L-shaped guide block I 1-1 and a guide block II 1-2 are respectively arranged at both ends of the base 1. Two screw holes 7 are arranged at intervals on the main body of the base 1. A fixing groove 6 is arranged inside the main body of the base 1, and through holes 5 are respectively arranged at both ends of the fixing groove 6; As Figure 2 , Figure 3 As shown in the figure, select a stop block I 2-1 and a stop block II 2-2 that are adapted to the cavity of the injection molding machine. Counterbores 4 corresponding to the through holes 5 are respectively arranged on the stop block I 2-1 and the stop block II 2-2. Use a positioning pin 3 to fix the stop block I 2-1 and the stop block II 2-2 in the fixing grooves 6 at both ends of the base 1 through the counterbores 4 and the through holes 5 respectively.

[0019] As Figures 4 to 9 shown in the figure, during use, screw a bolt 8 into the screw hole 7 to fix the quick positioning device to the injection molding machine template 9. The mold 10 is hoisted into the injection molding machine through the door and descends at a uniform speed. The bottom is guided by the two side stop blocks I 2-1 and stop block II 2-2 of the quick positioning device, and the center of the mold 10 is aligned with the quick positioning device. The bottom of the mold contacts the quick positioning device. The mold positioning ring 10-1 has been concentric with the central circular hole of the fixed template of the injection molding machine. Just approach the injection molding machine at a uniform speed, and the mold positioning ring 10-1 can smoothly enter the fixed template of the injection molding machine. At this time, the mold can be fixed to complete the upper mold work.

[0020] When the size of the mold matches the size of the main body of the base 1, the guide blocks I 1-1 and guide block II 1-2 at both ends of the quick positioning device base 1 can be used for guiding.

[0021] When the size of the mold changes, just replace the appropriate stop block I and stop block II.

Claims

1. A quick positioning device for replacing an injection mold, characterized in that: It includes a base (1), with L-shaped guide blocks Ⅰ (1-1) and Ⅱ (1-2) at both ends of the base (1), and screw holes (7) are arranged at intervals on the main body of the base (1); it also includes a stop block Ⅰ (2-1), a stop block Ⅱ (2-2) and a fixing groove (6), the fixing groove (6) is arranged inside the main body of the base (1), the shapes and sizes of the stop block Ⅰ (2-1) and the stop block Ⅱ (2-2) are adapted to the cavity of the injection molding machine, and the stop block Ⅰ (2-1) and the stop block Ⅱ (2-2) are respectively arranged at both ends of the fixing groove (6); counterbores (4) are respectively arranged on the stop block Ⅰ (2-1) and the stop block Ⅱ (2-2); two through holes (5) are arranged in the fixing groove (6) on the base (1), and the two through holes (5) respectively correspond to the two counterbores (4).

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