Injection mold capable of accurately positioning insert

Abstract

The utility model provides an injection mold capable of accurately positioning an insert, and belongs to the technical field of mold manufacturing. The injection mold capable of accurately positioning the insert comprises an upper top plate, an upper mold plate, an upper mold core, a lower mold core, a lower mold plate, a vertical plate and a lower bottom plate, the upper top plate is fixed with the upper mold plate, the lower mold plate, the vertical plate and the lower bottom plate are sequentially fixed, the upper mold core is fixed on the upper mold plate, the lower mold core is fixed on the lower mold plate, a mounting groove is formed in the lower mold plate, and a positioning strip is fixed in the mounting groove through a bolt. The inner end face of the positioning strip abuts against the lower mold core, the positioning strip is provided with a positioning groove allowing the metal insert to be inserted therein, the upper mold core and the lower mold core are closed to form a forming cavity, one end of the metal insert is located in the forming cavity, the bottom of the positioning groove is provided with an adsorption groove, and a magnet for adsorbing the metal insert is arranged in the adsorption groove. And a magnet block is arranged on the positioning strip, so that the metal insert can be firmly adsorbed in an adsorption groove and is prevented from shaking up and down and rotating during injection molding, and positioning is simple and accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold manufacturing and relates to an injection mold for accurately positioning inserts. Background Art

[0002] Because according to product demand, it is necessary to wrap metal inserts in existing plastic products. In the process of producing plastic-coated parts for such products, it is necessary to accurately position the metal inserts in the injection mold, and then use the injection molding machine to inject plastic fluid into the injection mold. The plastic fluid will wrap the metal insert to make a plastic product, especially the screw-shaped metal insert, which is not easy to position. Therefore, the production of such products requires accurate positioning of the metal inserts so as not to affect the appearance and function of the product. Utility Model Content

[0003] The utility model aims to solve the above problems in the prior art and proposes an injection mold for accurately positioning inserts. The utility model has a magnet block, which can firmly adsorb and accurately position the screw-shaped metal inserts without affecting the ejection operation of the product.

[0004] The purpose of the utility model can be achieved through the following technical solutions: an injection mold for accurately positioning an insert, comprising an upper top plate, an upper template, an upper mold core, a lower mold core, a lower template, a vertical plate, and a lower bottom plate, wherein the upper top plate is fixed to the upper template, and the lower template, the vertical plate, and the lower bottom plate are fixed in sequence, and the utility model is characterized in that the upper mold core is fixed to the upper template, the lower mold core is fixed to the lower template, a mounting groove is opened on the lower template, a positioning strip is fixed in the mounting groove by bolts, the inner end surface of the positioning strip abuts against the lower mold core, a positioning groove is opened on the positioning strip for inserting a metal insert, the upper mold core and the lower mold core are combined to form a molding cavity, one end of the metal insert is located in the molding cavity, an adsorption groove is opened at the bottom of the positioning groove, and a magnet block for adsorbing the metal insert is arranged in the adsorption groove.

[0005] Furthermore, there are 2-3 adsorption tanks which are equidistantly arranged.

[0006] Furthermore, the outer end of the metal insert has a conical head, and the outer end surface of the positioning strip abuts against the rear end of the conical head.

[0007] Furthermore, a limiting plate is fixed to the notch of the installation slot, and the limiting plate abuts against the front end of the conical head.

[0008] Furthermore, a first top plate and a second top plate are provided between the two vertical plates, and a ejector rod is fixed on the first top plate, and the upper end of the ejector rod passes through the lower mold plate and the lower mold core and contacts the molding cavity.

[0009] Furthermore, a guide column is fixed on the lower bottom plate, and guide holes for the guide column to pass through are opened on the first top plate and the second top plate.

[0010] Furthermore, an injection molding end and an injection molding flow channel are provided on the lower mold plate, and the injection molding end is connected with the molding cavity through the injection molding flow channel.

[0011] The metal inserts are made of stainless steel and iron, and the magnet block can absorb the metal inserts. The injection molding machine drives the upper and lower molds to close the mold, connects the feed pipe to the injection port, and the molten plastic flows into the injection runner and finally into the molding cavity. After the molding cavity is filled, wait for the product to cool and finalize. The mold is opened and the unloading cylinder is driven to drive the second top plate and the first top plate to move up, so that the ejector rod ejects the product out of the molding cavity.

[0012] Compared with the prior art, the injection mold of the precise positioning insert has the following advantages:

[0013] 1. A magnet block is set on the positioning bar, which can firmly adsorb the metal insert in the adsorption groove to prevent it from shaking and rotating up and down during injection molding, and the positioning is simple and accurate.

[0014] 2. The limit plate abuts against the front end of the conical head of the metal insert, and the outer end surface of the positioning strip abuts against the rear end of the conical head, so that the metal insert will not move forward and backward during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the injection mold of the precise positioning insert.

[0016] Figure 2 It is a three-dimensional diagram of the injection mold of the precise positioning insert.

[0017] Figure 3 It is a structural diagram of the lower template.

[0018] Figure 4 It is a schematic diagram of the product structure.

[0019] In the figure, 1. upper top plate; 2. upper mold plate; 3. upper mold core; 4. lower mold core; 5. lower mold plate; 6. vertical plate; 7. lower bottom plate; 8. mounting groove; 9. positioning strip; 10. adsorption groove; 11. magnet block; 12. limit plate; 13. first top plate; 14. second top plate; 15. ejector rod; 16. guide column; 17. injection end; 18. injection runner; 19. metal insert; 20. conical head; 21. bolt. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1-3As shown, the injection mold for the precise positioning insert comprises an upper top plate 1, an upper mold plate 2, an upper mold core 3, a lower mold core 4, a lower mold plate 5, a vertical plate 6 and a lower bottom plate 7. The upper top plate 1 is fixed to the upper mold plate 2, and the lower mold plate 5, the vertical plate 6 and the lower bottom plate 7 are fixed in sequence. The upper mold core 3 is fixed to the upper mold plate 2, and the lower mold core 4 is fixed to the lower mold plate 5. The lower mold plate 5 is provided with a mounting groove 8, and a positioning strip 9 is fixed in the mounting groove 8 by means of a bolt 21. The inner end surface of the positioning strip 9 abuts against the lower mold core 4, and the positioning strip 9 is provided with a positioning groove for inserting a metal insert 19. The upper mold core 3 and the lower mold core 4 are combined to form a molding cavity, and one end of the metal insert 19 is located in the molding cavity. An adsorption groove 10 is provided at the bottom of the positioning groove, and a magnet block 11 for adsorbing the metal insert 19 is arranged in the adsorption groove 10.

[0022] There are 2-3 adsorption grooves 10 which are arranged equidistantly. A limiting plate 12 is fixed to the groove of the mounting groove 8 , and the limiting plate 12 abuts against the front end of the conical head 20 .

[0023] A first top plate 13 and a second top plate 14 are provided between the two vertical plates 6. A ejector rod 15 is fixed to the first top plate 13. The upper end of the ejector rod 15 contacts the molding cavity after passing through the lower mold plate 5 and the lower mold core 4. A guide column 16 is fixed to the lower bottom plate 7. The first top plate 13 and the second top plate 14 are provided with guide holes for the guide column 16 to pass through. An injection end 17 and an injection runner 18 are provided on the lower mold plate 5. The injection end 17 is connected to the molding cavity through the injection runner 18.

[0024] like Figure 4 As shown, the metal insert 19 of this product is made of stainless steel and iron. The outer end of the metal insert 19 has a conical head 20, and the outer end surface of the positioning strip 9 abuts against the rear end of the conical head 20. The magnet block 11 can adsorb the metal insert 19. The injection molding machine drives the upper mold plate 2 and the lower mold plate 5 to close the mold, connects the feed pipe to the injection end 17, and the molten plastic flows into the injection runner 18 and finally enters the molding cavity. After the molding cavity is filled, wait for the product to cool and shape. Open the mold and drive the unloading cylinder to drive the second top plate 14 and the first top plate 13 to move up, so that the ejector rod 15 ejects the product out of the molding cavity.

[0025] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An injection mold for accurately positioning an insert, comprising an upper top plate, an upper template, an upper mold core, a lower mold core, a lower template, a vertical plate, and a lower bottom plate, wherein the upper top plate is fixed to the upper template, and the lower template, the vertical plate, and the lower bottom plate are fixed in sequence, characterized in that: The upper die core is fixed on the upper mold plate, and the lower die core is fixed on the lower mold plate. The lower mold plate is provided with an installation groove, in which a positioning strip is fixed by bolts, and the inner end surface of the positioning strip abuts against the lower die core. The positioning strip is provided with a positioning groove for inserting a metal insert. The upper die core and the lower die core are combined to form a molding cavity, and one end of the metal insert is located in the molding cavity. An adsorption groove is provided at the bottom of the positioning groove, and a magnet block for adsorbing the metal insert is arranged in the adsorption groove.

2. The injection mold for accurately positioning an insert according to claim 1, characterized in that: There are 2-3 adsorption slots which are equidistantly arranged.

3. The injection mold for accurately positioning an insert according to claim 2, characterized in that: The outer end of the metal insert is provided with a conical head, and the outer end surface of the positioning strip abuts against the rear end of the conical head.

4. The injection mold for accurately positioning an insert according to claim 3, characterized in that: A limiting plate is fixed to the notch of the installation slot, and the limiting plate abuts against the front end of the conical head.

5. The injection mold for accurately positioning an insert according to claim 1, characterized in that: A first top plate and a second top plate are arranged between the two vertical plates. A ejector rod is fixed on the first top plate. The upper end of the ejector rod passes through the lower mold plate and the lower mold core and contacts the forming cavity.

6. The injection mold for accurately positioning an insert according to claim 1, characterized in that: A guide column is fixed on the lower bottom plate, and guide holes for the guide column to pass through are opened on the first top plate and the second top plate.

7. The injection mold for accurately positioning an insert according to claim 1, characterized in that: The lower mold plate is provided with an injection end and an injection flow channel, and the injection end is communicated with the molding cavity through the injection flow channel.

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