Static mold strong-drawing injection molding mold

Abstract

The utility model relates to a static mold forced-drawing injection molding mold which comprises a bottom plate, a static mold plate, a static mold core, a movable mold plate, a movable mold core, two square irons, a hot runner plate, a panel, a forced-drawing mechanism, a top plate and a plurality of ejector pins, the iron pulling block is arranged on the static mold plate, the limiting block is arranged on the hot runner plate and is in sliding connection fit with the iron pulling block, the pulling block is arranged on the top plate in a linkage mode and is matched with the iron pulling block, the pressure spring is arranged between the pulling block and the top plate, and the iron pulling block is provided with a limiting groove matched with the pulling block. One end of the pull block is inserted into the limiting groove in a penetrating manner, a linkage plane in linkage fit with the limiting groove is arranged on the side, facing the hot runner plate, of one end of the pull block, and a guide inclined plane in free fit with the limiting groove is arranged on the side, facing the movable mold plate, of the pull block. The utility model has the advantages of simple structure, stable and reliable performance and long service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of injection molding mould, specifically to a kind of static mould strong pull injection molding mould. BACKGROUND

[0002] Low-voltage electrical apparatus is a kind of element or device that can manually or automatically connect or disconnect circuit according to external signal and requirement, to realize switching, control, protection, detection, transformation and regulation of circuit or non-electric object. Common low-voltage electrical apparatus includes circuit breaker, fuse, contactor, leakage protector and relay, etc. In the production process, the plastic parts of low-voltage electrical apparatus need to be made by injection molding mould. The overall rigidity and stability of the existing injection molding mould for plastic parts of low-voltage electrical apparatus is not ideal. In the production process, it is easy to cause damage and deformation of injection molded products, which cannot ensure the stability of injection molded product quality, and the injection molding mould also has the defects of unreliable performance and short service life. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, and provides a static mould strong pull injection molding mould with simple structure, stable and reliable performance and long service life.

[0004] To achieve the above-mentioned purpose, the utility model adopts a kind of static mould strong pull injection molding mould, including bottom plate, static mould plate being arranged on bottom plate, static mould core being arranged in static mould plate, dynamic mould plate being arranged on static mould plate, dynamic mould core being arranged in dynamic mould plate, two square irons being symmetrically arranged on dynamic mould plate, hot runner plate being arranged on two square irons, panel being arranged on hot runner plate, strong pull mechanism being arranged between hot runner plate and static mould plate, top plate being slidably arranged between two square irons, multiple ejector pins being arranged on top plate, model cavity is formed between dynamic mould core and static mould core, the strong pull mechanism includes iron pull block being arranged on static mould plate, limiting block being arranged on hot runner plate and being slidably connected with iron pull block, pull block being arranged on top plate and being matched with iron pull block, compression spring being arranged between pull block and top plate, limiting groove being arranged on iron pull block and being matched with pull block, one end of pull block is inserted into limiting groove, linkage flat surface being arranged on one side of hot runner plate and being matched with limiting groove, guiding inclined surface being arranged on one side of dynamic mould plate and being freely matched with limiting groove.

[0005] The beneficial effect of the above structure is that the strong pulling mechanism is arranged between the hot runner plate and the static mold plate, the strong pulling mechanism can improve the rigidity and stability of the injection molding mold, the strong pulling mechanism can avoid displacement of the movable mold plate and the static mold plate during the injection molding process, thereby the problem of breakage and deformation of the injection product is not easily caused, the stability of the quality of the injection product is ensured, the service life of the mold is prolonged, and the maintenance and replacement cost of the mold is reduced.

[0006] In particular, the locking block is arranged on the movable mold plate corresponding to the iron pulling block, the through hole is arranged on the locking block for the iron pulling block to pass through, and the locking bolt is arranged on the locking block to lock the iron pulling block in the through hole.

[0007] In particular, the guide groove matched with the iron pulling block is arranged on the limiting block, one end of the iron pulling block is inserted into the guide groove, and the iron pulling block and the limiting block are in sliding connection.

[0008] In particular, the locking member is rotatably arranged on the movable mold plate, the locking bolt matched with the locking member is arranged on the static mold plate, the locking groove matched with the locking bolt is arranged on the locking member, the locking groove is buckled on the locking bolt when the movable mold plate and the static mold plate are closed, and the locking member and the locking bolt are in clamping connection.

[0009] In particular, the gate cup is arranged on the panel, one end of the gate cup extends into the injection hole of the hot runner plate, the through hole communicated with the other end of the gate cup is arranged on the panel, and the positioning ring is arranged on the panel corresponding to the through hole. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a perspective view of an embodiment of the utility model.

[0011] Figure 2 It is a sectional view of an embodiment of the utility model. DETAILED DESCRIPTION

[0012] As Figure 1 , 2As shown, the utility model embodiment is a kind of static mould strong pull injection moulding mould, including bottom plate 10, static mould plate 11 being arranged on bottom plate 10, static mould core 12 being arranged in static mould plate 11, dynamic mould plate 13 being arranged on static mould plate 11, dynamic mould core 14 being arranged in dynamic mould plate 13, two square irons 15 being symmetrically arranged on dynamic mould plate 13, hot runner plate 16 being arranged on two square irons 15, panel 17 being arranged on hot runner plate 16, strong pull mechanism 20 being arranged between hot runner plate 16 and static mould plate 11, top plate 18 being slidably arranged between two square irons 15, multiple ejector pins 19 being arranged on top plate 18, the model cavity 100 is formed between dynamic mould core 14 and static mould core 12, and the strong pull mechanism 20 includes iron pull block 21 being arranged on static mould plate 11, limiting block 22 being arranged on hot runner plate 16 and being slidably connected with iron pull block 21, pull block 23 being connected on top plate 18 and being matched with iron pull block 21, compression spring 230 being arranged between pull block 23 and top plate 18, limiting slot 211 being arranged on iron pull block 21 and being matched with pull block 23, one end of pull block 23 is inserted in limiting slot 211, and one end of pull block 23 is provided with linkage plane 231 matched with limiting slot 211 on the side of hot runner plate 16, and the other end of pull block 23 is provided with guide inclined plane 232 matched with limiting slot 211 on the side of dynamic mould plate 13.The locking block 24 is arranged on dynamic mould plate 12 corresponding to iron pull block 21, the through hole 241 is arranged on the locking block 24, and the locking bolt 25 is arranged on the locking block 24 and locks iron pull block 21 in the through hole 241.In the closing of mould, locking bolt can lock iron pull block in the through hole, so as to improve the reliability of the closing of mould of the injection moulding mould.The limiting block 22 is provided with guide slot 221 matched with iron pull block 21, one end of iron pull block 21 is inserted in guide slot 221, and the sliding connection of iron pull block 21 and limiting block 22 is formed.The guide slot plays the role of guiding and limiting iron pull block, so as to ensure that iron pull block can reliably operate in the guide slot of limiting block, and improve the working reliability of the strong pull mechanism.The locking member 26 is rotatably arranged on dynamic mould plate 13, the locking bolt 27 is arranged on static mould plate 11 and matched with locking member 26, the locking slot 261 is arranged on locking member 26 and matched with locking bolt 27, and the locking slot 261 is buckled on locking bolt 27 when dynamic mould plate 13 and static mould plate 11 are closed, and the clamping cooperation of locking member 26 and locking bolt 27 is formed.In the closing of mould, static mould plate is locked with locking bolt on dynamic mould plate through locking member, so as to ensure that the closing of mould of the injection moulding mould is more reliable.The face plate 17 is provided with a gate cup 28, one end of the gate cup 28 extends in the material injection hole 161 of the hot runner plate 16, the face plate 17 is provided with a through hole 171 which is communicated with the other end of the gate cup 28, and the face plate 17 is provided with a positioning ring 172 corresponding to the through hole 171. The positioning ring of the face plate can be engaged with the injection molding machine, so that the installation of the injection molding mold and the injection molding machine is facilitated, and the installation is more convenient.

[0013] The strong pulling mechanism is arranged between the hot runner plate and the static mold plate, which can improve the rigidity and stability of the injection molding mold. In the injection molding process, the strong pulling mechanism can avoid displacement of the movable mold plate and the static mold plate, thereby avoiding problems of breakage and deformation of the injection molded product, ensuring the stability of the quality of the injection molded product, prolonging the service life of the mold, and reducing the maintenance and replacement cost of the mold. By enhancing the structural strength of the mold, the wear and damage caused by frequent use are reduced, thereby reducing the maintenance frequency and replacement cost. Therefore, the injection molding mold has the advantages of simple structure, stable and reliable performance, long service life.

Claims

1. A static mold overmolding injection molding mold characterized by: The application relates to a plastic injection mould, which comprises a bottom plate, a static mould plate arranged on the bottom plate, a static mould core arranged in the static mould plate, a dynamic mould plate arranged on the static mould plate, a dynamic mould core arranged in the dynamic mould plate, two square irons arranged symmetrically on the dynamic mould plate, a hot runner plate arranged on the two square irons, a face plate arranged on the hot runner plate, a strong pulling mechanism arranged between the hot runner plate and the static mould plate, a top plate slidingly arranged between the two square irons, and a plurality of ejector pins arranged on the top plate.

2. The static mold power draw injection molding mold of claim 1, wherein: The dynamic mould plate is provided with a locking block corresponding to the iron pulling block, the locking block is provided with a through hole through which the iron pulling block passes, and the locking block is provided with a locking bolt for locking the iron pulling block in the through hole.

3. The static-die stretch injection molding mold according to claim 1 or 2, characterized by: The limiting block is provided with a guide groove matched with the iron pulling block, one end of the iron pulling block is inserted into the guide groove, and the iron pulling block and the limiting block are in sliding connection.

4. The static-die stretch injection molding mold according to claim 1 or 2, characterized by: The dynamic mould plate is provided with a locking member rotatably arranged on the dynamic mould plate, the static mould plate is provided with a locking bolt matched with the locking member, the locking member is provided with a locking groove matched with the locking bolt, and when the dynamic mould plate and the static mould plate are closed, the locking groove is buckled on the locking bolt, and the locking member and the locking bolt are in clamping connection.

5. The draw-on-static-die injection molding mold according to claim 1 or 2, characterized by: The face plate is provided with a sprue cup, one end of the sprue cup extends into a material injection hole of the hot runner plate, the face plate is provided with a through hole communicated with the other end of the sprue cup, and the face plate is provided with a positioning ring corresponding to the through hole.

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