Positioning structure of injection mold

Abstract

The utility model discloses a positioning structure of an injection mold. The positioning structure comprises a mold body, a positioning assembly and a binding assembly, the die body comprises an upper die and a lower die at the upper end and the lower end. According to the positioning structure of the injection mold, after the upper mold and the lower mold are closed, the positioning frames driven by the two sides of the double-shaft air cylinder at the bottom of the lower mold are used for clamping, pressing and positioning the height and the position of the insertion rod through the horizontal height positioning block and the horizontal position positioning block at the two ends; meanwhile, a plurality of groups of binding rods are mounted in the center of the positioning frame, the moving position of the positioning frame can also be bound and positioned, so that the accurate positioning of the positioning frame on the inserting rod is ensured, and the positioning nails on the two sides of the lower mold are not prone to falling off. And when the horizontal position positioning block moves, the position of the horizontal position positioning block can be positioned, so that the accuracy of pressing and positioning the insertion rod by the horizontal position positioning block is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and specifically relates to a positioning structure of an injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products. It forms products by heating and injecting plastic materials into the mold cavity and then cooling and solidifying. Its principle is to inject molten plastic materials into the mold cavity under high pressure and take out the formed products after cooling.

[0003] The positioning structure of the existing injection mold, such as an injection mold with a positioning structure with a reminder function disclosed in the publication number CN221365603U, although it has the effect of reminding the staff to repair the injection mold in time, which helps to avoid the problem of the decrease in the finished product rate of injection molded parts caused by the staff's failure to discover in time. However, for this injection mold, it is inconvenient to accurately position the horizontal pressing position and height of the mold cores and cavities at the inner ends of the upper and lower molds. Therefore, we propose a positioning structure of an injection mold. Summary of the Utility Model

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by the utility model is as follows:

[0006] A positioning structure of an injection mold, including: a mold body, a positioning component, and a restraint component; the mold body includes an upper mold and a lower mold at its upper and lower ends; the positioning component includes slots opened at the four corners of the upper end of the lower mold, insertion rods fixedly installed at the four corners of the bottom of the upper mold, bayonets opened at the upper ends of the insertion rods, a double-shaft cylinder fixedly installed at the center of the bottom of the lower mold, positioning frames fixedly installed on both sides of the double-shaft cylinder, horizontal height positioning blocks fixedly installed on both sides of the positioning frames, and horizontal position positioning blocks fixedly installed on the inner sides of the horizontal height positioning blocks; the restraint component includes positioning nails fixedly installed at the four corners inside the lower mold, threaded holes opened on both sides inside the lower mold, and restraint rods movably installed in the threaded holes.

[0007] Preferably, position positioning plates are also fixedly installed on both sides of the bottom of the lower mold.

[0008] Preferably, inclined openings are also opened at the outer ends of the horizontal position positioning blocks.

[0009] Preferably, the horizontal height positioning blocks are matched with the bayonets.

[0010] Preferably, positioning holes are also opened inside the horizontal position positioning blocks, and the positioning nails are matched with the positioning holes.

[0011] Preferably, restraint holes are also provided on both sides inside the positioning frame, and the restraint rods are movably installed in the restraint holes.

[0012] By adopting the above technical solutions, the beneficial effects obtained by the present utility model are as follows:

[0013] 1. In the present utility model, after the upper mold and the lower mold are closed, the positioning frames driven by both sides of the double-shaft cylinder at the bottom of the lower mold will engage and tightly position the height and position of the insertion rod through the horizontal height positioning blocks and horizontal position positioning blocks at both ends, so as to accurately position the upper mold closed at the upper end of the lower mold during injection molding to ensure its injection molding effect;

[0014] 2. In the present utility model, multiple groups of restraint rods installed at the center of the positioning frame can also restrain and position the moving position of the positioning frame, so as to ensure the accurate positioning of the positioning frame for the insertion rod. The positioning pins on both sides of the lower mold can also position their positions during the movement of the horizontal position positioning block, thereby enhancing the accuracy of the horizontal position positioning block for tightly positioning the insertion rod. Description of the Drawings

[0015] Figure 1 is the overall structure diagram of the present utility model;

[0016] Figure 2 is the bottom structure diagram of the present utility model;

[0017] Figure 3 is the disassembly diagram of the upper mold of the present utility model;

[0018] Figure 4 is the disassembly diagram of the positioning frame inside the lower mold of the present utility model;

[0019] Figure 5 is the disassembly diagram of the restraint rod inside the lower mold of the present utility model.

[0020] Reference Signs:

[0021] 100, Mold Body; 101, Upper Mold; 102, Lower Mold;

[0022] 200, Positioning Assembly; 201, Slot; 202, Insertion Rod; 203, Bayonet; 204, Double-Shaft Cylinder; 205, Positioning Frame; 206, Horizontal Height Positioning Block; 207, Horizontal Positioning Block; 208, Positioning Plate; 209, Bevel;

[0023] 300, Restraint Assembly; 301, Positioning Pin; 302, Threaded Hole; 303, Restraint Rod; 304, Positioning Hole; 305, Restraint Hole. Detailed Embodiments

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0025] The following describes a positioning structure of an injection mold provided by some embodiments of the present utility model with reference to the accompanying drawings.

[0026] Embodiment 1:

[0027] Combined with Figures 1-4 As shown, a positioning structure of an injection mold provided by the present utility model includes: a mold body 100, a positioning assembly 200, and a restraint assembly 300; the mold body 100 includes an upper mold 101 and a lower mold 102 at its upper and lower ends; the positioning assembly 200 includes slots 201 opened at the four corners of the upper end of the lower mold 102, insertion rods 202 fixedly installed at the four corners of the bottom of the upper mold 101, bayonets 203 opened at the upper ends of the insertion rods 202, a double-axis cylinder 204 fixedly installed at the center of the bottom of the lower mold 102, positioning frames 205 fixedly installed on both sides of the double-axis cylinder 204, horizontal height positioning blocks 206 fixedly installed on both sides of the positioning frames 205, and horizontal position positioning blocks 207 fixedly installed on the inner sides of the horizontal height positioning blocks 206; position positioning plates 208 are also fixedly installed on both sides of the bottom of the lower mold 102, inclined openings 209 are also opened at the outer ends of the horizontal position positioning blocks 207, and the horizontal height positioning blocks 206 and the bayonets 203 are matched with each other.

[0028] Specifically, an injection mold is a tool for producing plastic products. It injects plastic materials into the mold cavity by heating and then cools and solidifies to form products. After the upper mold 101 and the lower mold 102 of the mold body 100 are closed, the positioning frames 205 driven on both sides of the double-axis cylinder 204 at the bottom of the lower mold 102 will engage and tightly position the insertion rods 202 in terms of height and position through the horizontal height positioning blocks 206 and the horizontal position positioning blocks 207 at both ends, so as to accurately position the upper mold 101 closed at the upper end of the lower mold 102 during injection molding to ensure its injection molding effect. The position positioning plates 208 fixedly installed on both sides of the bottom of the lower mold 102 are mainly used for positioning the moving positions of the positioning frames 205 on both sides of the double-axis cylinder 204, and further positioning the moving positions of the horizontal height positioning blocks 206 and the horizontal position positioning blocks 207 at both ends of the positioning frames 205.

[0029] Embodiment 2:

[0030] Combined with Figures 4-5As shown, on the basis of the first embodiment, the binding assembly 300 includes positioning pins 301 fixedly installed at the four inner corners of the lower mold 102, threaded holes 302 opened on both sides inside the lower mold 102, binding rods 303 movably installed in the threaded holes 302. Positioning holes 304 are also opened in the horizontal position positioning blocks 207, and the positioning pins 301 match the positioning holes 304. Binding holes 305 are also opened on both sides inside the positioning frame 205, and the binding rods 303 are movably installed in the binding holes 305.

[0031] Specifically, multiple groups of binding rods 303 installed at the center of the positioning frame 205 can also bind and position the moving position of the positioning frame 205, so as to ensure the accurate positioning of the positioning frame 205 for the insertion rods 202. The positioning pins 301 on both sides of the lower mold 102 can also position their positions during the movement of the horizontal position positioning block 207, so as to enhance the accuracy of the horizontal position positioning block 207 in pressing and positioning the insertion rods 202.

[0032] The working principle and usage process of the present utility model:

[0033] After the upper mold 101 on the upper end of the lower mold 102 is closed, first start the double-shaft cylinder 204 at the bottom of the lower mold 102. After the double-shaft cylinder 204 is started, it will drive the positioning frames 205 at both ends to move outward. In the positioning frames 205, the horizontal position positioning blocks 207 on both sides will first move to the inner side of the insertion rods 202 through the outer inclined openings 209. As the positioning frames 205 continue to move outward, the inner ends of the horizontal position positioning blocks 207 will press against the outer sides of the insertion rods 202, and the horizontal height positioning blocks 206 at the outer ends will be engaged into the internal snap openings 203 of the insertion rods 202. After the two positioning frames 205 are positioned and moved along the binding rods 303 to the inner side of the position positioning plate 208, the pressing and engagement of multiple groups of insertion rods 202 can be completed, and then the accurate positioning of the upper mold 101 after being closed on the upper end of the lower mold 102 can be completed.

[0034] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A positioning structure for an injection mold, characterized in that: include: A mold body (100), a positioning assembly (200), and a restraining assembly (300); The mold body (100) comprises an upper mold (101) and a lower mold (102) at its upper and lower ends; The positioning assembly (200) comprises slots (201) provided at the four corners of the upper end of the lower mold (102), plug rods (202) fixedly installed at the four corners of the bottom of the upper mold (101), bayonet holes (203) provided at the upper ends of the plug rods (202), a double-axis cylinder (204) fixedly installed at the center of the bottom of the lower mold (102), a positioning frame (205) fixedly installed on both sides of the double-axis cylinder (204), a horizontal height positioning block (206) fixedly installed on both sides of the positioning frame (205), and a horizontal position positioning block (207) fixedly installed on the inner side of the horizontal height positioning block (206); The restraining assembly (300) comprises positioning pins (301) fixedly installed at the four corners of the lower mold (102), threaded holes (302) opened on both sides of the lower mold (102), and restraining rods (303) movably installed in the threaded holes (302).

2. The positioning structure of an injection mold according to claim 1, characterized in that: Positioning plates (208) are also fixedly mounted on both sides of the bottom of the lower mold (102).

3. The positioning structure of an injection mold according to claim 1, characterized in that: The outer ends of the horizontal position positioning blocks (207) are also provided with oblique openings (209).

4. The positioning structure of an injection mold according to claim 1, characterized in that: The horizontal height positioning block (206) matches the bayonet (203).

5. The positioning structure of an injection mold according to claim 1, characterized in that: The horizontal position positioning blocks (207) are also provided with positioning holes (304), and the positioning pins (301) match the positioning holes (304).

6. The positioning structure of an injection mold according to claim 1, characterized in that: Binding holes (305) are also provided on both sides of the positioning frame (205), and the binding rods (303) are movably installed in the binding holes (305).

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