Injection molding mold

Abstract

The utility model relates to an injection molding mold which comprises a mold frame, a movable mold plate, a movable mold core, a static mold plate, a static mold core, a stripper plate, a panel and a secondary ejection assembly, the secondary ejection assembly comprises a first bottom plate, a first ejection plate, a plurality of ejector pins, a second bottom plate, a second ejection plate, a plurality of ejection rods, four ejection blocks, four sliding blocks, four reset springs and four stop inclined blocks, the ejector pins act along with the first ejection plate and are inserted into the mold cavity in a penetrating mode, and the ejector rods act along with the second ejection plate and are inserted into the mold cavity in a penetrating mode. An abutting plane abutting against the four abutting blocks is arranged on one sides of the four sliding blocks, abutting inclined faces matched with the four stop inclined blocks are arranged on the other sides of the four sliding blocks, and driving inclined faces matched with the abutting inclined faces are arranged on the four stop inclined blocks. The utility model has the advantages of simple structure, stable and reliable performance and high production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to an injection molding mold. BACKGROUND

[0002] Low-voltage electrical apparatus is a kind of element or device that can be manually or automatically connected or disconnected according to the signal and requirement of outside, to realize the 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 mold. The existing injection molding mold for plastic parts of low-voltage electrical apparatus has complex ejection structure design, which can easily cause damage and deformation of injection molding products, cannot ensure the stability of injection molding product quality, and the injection molding mold for disconnecting switch handle also has the defects of unreliable performance and low production efficiency. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, provide a kind of injection molding mold with simple structure, stable and reliable performance, high production efficiency.

[0004] To achieve the above object, the utility model adopts a kind of injection molding mold, including mould frame, the movable die plate being arranged on mould frame, the movable die core being arranged in movable die plate, the static die plate being arranged on movable die plate, the static die core being arranged in static die plate, the water gap plate being arranged on static die plate, the panel being arranged on water gap plate, the secondary ejection assembly being slidably arranged in mould frame, the model cavity is formed between the movable die core and static die core, the secondary ejection assembly includes the first bottom plate being slidably arranged in mould frame, the first top plate being connected and arranged on first bottom plate, multiple ejector pins being respectively connected and arranged on first top plate, the second bottom plate being slidably arranged in mould frame at the position above first top plate, the second top plate being arranged on second bottom plate, multiple top rods being connected and arranged on second top plate, four top blocks being respectively arranged in rectangular array on first bottom plate, four sliding blocks being slidably arranged on second bottom plate at the position of four top blocks, four return springs being arranged between four sliding blocks and second bottom plate, four stop blocks being respectively arranged on movable die plate at the position of four sliding blocks, multiple ejector pins move with first top plate and are inserted in model cavity, multiple top rods move with second top plate and are inserted in model cavity, the side of four sliding blocks is provided with abutting plane that abuts on four top blocks, the other side of four sliding blocks is provided with abutting bevel that cooperates with four stop blocks, and driving bevel that cooperates with abutting bevel is arranged on four stop blocks.

[0005] The beneficial effects of the above structure are that the secondary ejection assembly can realize the secondary ejection function in the demolding process, through twice ejection, the demolding process of the injection molded part can be better controlled, and the damage or residual problem of the injection molded part caused by incomplete primary ejection can be reduced. In addition, the secondary ejection can also reduce the gate pull mark and improve the surface quality of the product. In work, the first bottom plate drives the first top plate to act, the stop block on the first bottom plate pushes the sliding block, the second bottom plate acts upward, the second bottom plate and the second top plate drive the plurality of ejector pins to act, when the abutting slope of the sliding block abuts on the driving slope of the blocking slope, the sliding block slides into the second bottom plate, the sliding block is separated from the stop block, the second bottom plate and the second top plate stop acting upward, the first bottom plate and the first top plate drive the plurality of ejector pins to continue acting upward, thereby realizing the secondary ejection function of the injection molding mold, and the injection molding mold has the advantages of simple structure, stable and reliable performance and high production efficiency.

[0006] In particular, the sliding block has a guide block matched with the second bottom plate, the second bottom plate is provided with a guide groove matched with the guide block, the guide block is slidably arranged in the guide groove, and the sliding connection of the guide block and the second bottom plate is formed. The sliding block slides in the guide groove of the second bottom plate through the guide block, so that the reliable action of the sliding block on the second bottom plate can be ensured, and the working reliability of the injection molding mold is improved.

[0007] In particular, the reset compression spring is arranged in the guide groove, one end of the reset compression spring abuts in the positioning groove of the guide block, and the other end of the reset compression spring abuts on the inner wall of the guide groove. The reset compression spring is engaged in the guide groove, so that the reliable action of the sliding block in the guide groove can be ensured, and the working reliability of the injection molding mold is improved.

[0008] In particular, the static mold plate is rotationally provided with a locking piece, the movable mold plate is provided with a locking bolt matched with the locking piece, the locking piece is provided with a locking groove matched with the locking bolt, the locking groove is buckled on the locking bolt, and the clamping connection of the locking bolt and the locking piece is formed. When the mold is closed, the static mold plate is locked with the locking bolt on the movable mold plate through the locking piece, so that the mold closing of the injection molding mold is more reliable.

[0009] In particular, the face plate is provided with a gate cup, one end of the gate cup extends in the mold cavity through the water gap plate and the static mold plate, the face plate is provided with a through hole in communication with the other end of the gate cup, and the face plate is provided with a positioning ring at the position corresponding to the through hole. The positioning ring of the face plate can be clamped with the injection molding machine, so that the injection molding mold is convenient to install with the injection molding machine, and the installation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

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

[0011] Fig. 2 A cross-sectional view of an embodiment of the present application.

[0012] Fig. 3 An exploded view of an embodiment of the present application. DETAILED DESCRIPTION

[0013] As Figs. 1-3The utility model discloses an injection molding mold, including mould frame 10, set up on the mould frame 10 movable die plate 11, set up in movable die plate 11 movable die core 12, set up on movable die plate 11 static die plate 13, set up in static die plate 13 static die core 14, set up on static die plate 13 water gap board 15, set up on water gap board 15 panel 16, the secondary ejection subassembly 20 of sliding setting in mould frame 10, movable die core 12 and static die core 14 between form model cavity 100, the secondary ejection subassembly 20 include the first bottom plate 21 of sliding setting in mould frame 10, the first top plate 22 of linkage setting on the first bottom plate 21, a plurality of ejector pins 23 are respectively linked and set on the first top plate 22, the second bottom plate 24 of sliding setting in mould frame 10 at the first top plate 22 top, the second top plate 25 of setting on the second bottom plate 24, a plurality of top rods 26 are linked and set on the second top plate 25, four top blocks 27 are respectively set on the first bottom plate 21 and present rectangular array, four sliding blocks 28 are slidingly set on the second bottom plate 24 at four top blocks 27, four return springs 29 are set between four sliding blocks 28 and the second bottom plate 24, four stop inclined blocks 30 are respectively set on movable die plate 11 at four sliding blocks 28, a plurality of ejector pins 23 act with the first top plate 21 and are inserted in model cavity 100, a plurality of top rods 26 act with the second top plate 25 and are inserted in model cavity 100, the one side of four sliding blocks 28 is provided with the abutting plane 281 of abutting on four top blocks 27, the other side of four sliding blocks 28 is provided with the abutting inclined surface 282 of cooperation with four stop inclined blocks 30, the four stop inclined blocks 30 are provided with the drive inclined surface 301 of cooperation with the abutting inclined surface 282.The sliding block 28 has the guide block 283 of cooperation with the second bottom plate 24, the second bottom plate 24 is provided with the guide groove 241 of cooperation with the guide block 283, the guide block 283 is slidingly set in the guide groove 241, and the sliding connection cooperation of guide block 283 and the second bottom plate 24 is formed.The sliding block is slid in the guide groove of the second bottom plate through the guide block, so that the reliable action of the sliding block on the second bottom plate can be guaranteed, thereby being favorable for improving the working reliability of the injection molding mold.The reset compression spring 29 is set in the guide groove 241, one end of the reset compression spring 29 abuts in the positioning groove 284 of the guide block 283, the other end of the reset compression spring 29 abuts on the inner wall of the guide groove 241.The reset compression spring is engaged in the guide groove, so that the reliable action of the sliding block in the guide groove can be guaranteed, thereby being favorable for improving the working reliability of the injection molding mold.

[0014] As Fig. 1 And 3As shown, the static mold plate 13 is provided with a locking piece 17, the dynamic mold plate 12 is provided with a locking bolt 18 matched with the locking piece 17, the locking piece 17 is provided with a locking groove 171 matched with the locking bolt 18, the locking groove 171 is buckled on the locking bolt 18, and forms the clamping connection of the locking bolt 18 and the locking piece 17. When the mold is closed, the static mold plate is locked with the locking bolt on the dynamic mold plate through the locking piece, so that the mold closing of the injection molding mold is more reliable. The face plate 16 is provided with a sprue cup 19, one end of the sprue cup 19 penetrates through the water gap plate 15, the static mold plate 13 and extends in the mold cavity 100, the face plate 16 is provided with a through hole 161 communicated with the other end of the sprue cup 19, and the face plate 16 is provided with a positioning ring 162 corresponding to the through hole 161. The positioning ring of the face plate can be clamped with the injection molding machine, so that the injection molding mold is installed with the injection molding machine, and the installation is more convenient.

[0015] The secondary ejection assembly can realize the secondary ejection function in the demolding process. Through twice ejection, the demolding process of the injection molded part can be better controlled, and the damage or residual problem of the injection molded part caused by incomplete first ejection can be reduced. In addition, the secondary ejection can also reduce the gate pull mark and improve the surface quality of the product. In work, the first bottom plate drives the first top plate to act, the top block on the first bottom plate pushes the sliding block, the second bottom plate acts upward, the second bottom plate and the second top plate drive the plurality of ejector pins to act, when the abutting slope of the sliding block abuts on the driving slope of the blocking slope, the sliding block slides into the second bottom plate, the sliding block and the top block are separated, the second bottom plate and the second top plate stop upward action, the first bottom plate, the first top plate drive the plurality of ejector pins to continue upward action, so as to realize the secondary ejection function of the injection molding mold, so that the injection molding mold has the advantages of simple structure, stable and reliable performance and high production efficiency.

Claims

1. An injection molding mold characterized by: The utility model relates to a mould frame, the movable die plate of setting on the mould frame, the movable die core of setting in the movable die plate, the static die plate of setting on the movable die plate, the static die core of setting in the static die plate, the nozzle plate of setting on the static die plate, the panel of setting on the nozzle plate, the secondary ejection assembly of sliding setting in the mould frame, the movable die core with static die core between form the model cavity, the secondary ejection assembly includes the first bottom plate of sliding setting in the mould frame, the first top plate of linkage setting on the first bottom plate, a plurality of ejector pins are respectively linked to setting on the first top plate, the second bottom plate of sliding setting in the mould frame at the first top plate top place corresponding, the second top plate of setting on the second bottom plate, a plurality of ejector rods are linked to setting on the second top plate, four top blocks are respectively arranged in rectangular array on the first bottom plate, four sliding blocks are slidingly arranged on the second bottom plate corresponding to the four top blocks, four reset springs are arranged between the four sliding blocks and the second bottom plate, four stop blocks are respectively arranged on the movable die plate corresponding to the four sliding blocks, a plurality of ejector pins move with the first top plate and are inserted in the model cavity, a plurality of ejector rods move with the second top plate and are inserted in the model cavity, the four sliding blocks are provided with a contact plane on one side, which contacts the four top blocks, the other side of the four sliding blocks is provided with a contact inclined surface matched with the four stop blocks, and the four stop blocks are provided with a driving inclined surface matched with the contact inclined surface.

2. The injection molding mold according to claim 1, characterized in that: The sliding block has a guide block matched with the second bottom plate, the second bottom plate is provided with a guide groove matched with the guide block, the guide block is slidingly arranged in the guide groove, and the guide block and the second bottom plate are slidingly connected.

3. The injection molding mold according to claim 2, characterized in that: The reset spring is arranged in the guide groove, one end of the reset spring contacts the positioning groove of the guide block, and the other end of the reset spring contacts the inner wall of the guide groove.

4. Injection mould according to claim 1 or 2, characterized in that: The static die plate is rotationally provided with a locking member, the movable die 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, the locking groove is buckled on the locking bolt, and the locking bolt and the locking member are clamped and matched.

5. The injection molding mold according to claim 1 or 2, characterized in that: The panel is provided with a sprue cup, one end of the sprue cup passes through the nozzle plate, the static die plate and extends in the model cavity, the panel is provided with a through hole communicated with the other end of the sprue cup, and the panel is provided with a positioning ring corresponding to the through hole.

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