CN213321496U

CN213321496U - Injection mold push pedal, thimble board secondary ejection control mechanism

Info

Publication number: CN213321496U
Application number: CN202022016138.4U
Authority: CN
Inventors: 金�一
Original assignee: Taizhou Yichuan Mould Co ltd
Current assignee: Taizhou Yichuan Mould Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-01
Anticipated expiration: 2030-09-15

Abstract

A push plate and ejector plate secondary ejection control mechanism of an injection mold comprises an upper compound plate and a lower compound plate, wherein a runner plate is arranged below the upper compound plate and is connected with an injection nozzle, a set mold insert is arranged in a set mold plate below an upper backing plate and a set mold insert below the runner plate, a through hole is formed in the lower compound plate, a mold foot, an upper ejector plate and a lower ejector plate are arranged on the lower compound plate, an ejector pin is arranged between the upper ejector plate and the lower ejector plate, an outer mold core fixing plate and an inner mold core fixing plate are arranged on the mold foot and in a lower backing plate, an outer mold core is arranged on the outer mold core fixing plate, an inner mold core is arranged on the inner mold core fixing plate, an outer sleeve is arranged on a movable mold plate on the lower backing plate, a push plate is arranged on the movable mold plate, a mounting groove is formed in the side wall of the upper ejector plate, a spring and a bayonet lock are arranged in the mounting groove, the bayonet lock is provided with a middle convex block, the middle convex block is provided with an upper inclined guide surface and an upper, the lower straight retaining surface is contacted with the upper straight retaining surface.

Description

Injection mold push pedal, thimble board secondary ejection control mechanism

Technical Field

The utility model relates to an injection mold especially relates to injection mold push pedal, thimble board secondary ejection control mechanism.

Background

After the injection mold performs injection molding on the plastic bottle cap, the bottle cap needs to be ejected and demoulded, and the inner wall of the bottle cap is provided with an inner convex ring structure, so that the bottle cap needs to be ejected and demoulded twice. In the prior art, four ejector plate plates are usually matched to complete secondary ejection, the structure is complex, and the development cost of the die is increased.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, providing a simple structure, it is convenient to make, reduces mould development cost, guarantees injection mold push pedal, thimble board secondary ejection control mechanism of the smooth drawing of patterns of bottle lid.

The utility model discloses injection mold push pedal, ejector plate secondary ejection control mechanism's technical scheme is: the injection molding machine comprises an upper compound plate and a lower compound plate, wherein a runner plate is arranged below the upper compound plate and is connected with an injection nozzle, an upper backing plate is arranged below the runner plate, a fixed template is arranged below the upper backing plate, a fixed template insert is arranged in the fixed template, a through hole is formed in the lower compound plate, mold feet are arranged on the lower compound plate, an upper thimble plate and a lower thimble plate are arranged on the lower compound plate between the mold feet, thimbles are arranged between the upper thimble plate and the lower thimble plate, a lower backing plate is arranged on the mold feet, an outer mold core fixing plate and an inner mold core fixing plate are arranged in the lower backing plate, an outer mold core is arranged on the outer mold core fixing plate, an inner mold core is arranged on the inner mold core fixing plate, the inner mold core passes through the outer mold core, a movable template is arranged on the lower backing plate, an outer sleeve is arranged on the movable template, a push plate is arranged on the movable template, injection molding plastic is arranged among the push plate, the outer sleeve, the outer, the push pedal upper end contacts with the evagination ring, the inner wall system of plastics bottle lid has interior bulge loop, the upper portion outer wall and the interior bulge loop of outer mold core cooperate, the lateral wall of last thimble board open and to have the mounting groove, set up spring and bayonet lock in the mounting groove, one end of spring contacts with the mounting groove, another end of spring contacts with the bayonet lock, another end system of bayonet lock has well lug, well lug goes up the system has last inclined guide surface and last straight retaining surface, set up the knock-off plate at the lateral wall of lower compound plate, the system has lower inclined guide surface on the knock-off plate, lower inclined guide surface cooperatees with the last inclined guide surface of bayonet lock, set up the roof at the lateral wall of push pedal, the system has the recess in the roof, the upper portion of knock-off plate inserts in the recess, the roof is located the both sides lower extreme system of.

The utility model discloses an injection mold push plate, thimble board secondary ejection control mechanism, after the injection molding of plastic bottle lid, the mould is from fixed die plate and push plate die sinking, the plastic bottle lid stays in the top of outer mold core, inner mold core, overcoat, push plate and thimble, when the mould is opened gradually, the perforation that the ejector pin of injection molding machine passed down the compound board promotes upper and lower thimble board, upper and lower thimble board drives thimble and bayonet lock to move upwards, the upper straight fender surface of bayonet lock contacts with the lower straight fender surface of roof, the bayonet lock drives the roof to move upwards, the roof drives the push plate to move upwards, push plate and thimble push up the plastic bottle lid together, make the inner convex ring of plastic bottle lid upwards take off the outer mold core earlier, when the upper inclined guide surface of bayonet lock moves upwards and takes off the lower inclined guide surface of the bayonet lock and contacts, under the guide effect of lower inclined guide surface, promote the bayonet lock to move to the mounting groove inside, and extrude the spring, after the clamping pin moves inwards, the upper straight blocking surface of the clamping pin is separated from and contacted with the lower straight blocking surface of the top plate, the clamping pin does not push the top plate any more, the top plate and the push plate stop moving upwards, the upper ejector plate and the lower ejector plate continue to drive the ejector pin to move upwards, and the ejector pin ejects the plastic bottle cap upwards to remove the plastic bottle cap from the mold. This scheme injection mold push pedal, the ejecting control mechanism of thimble board secondary, set up spring, bayonet lock, roof and take off the pin plate structure through the outer wall at the mould and control thimble and push pedal branch ejecting product of secondary, simplified the mould structure, it is more convenient that the mould is made, reduces mould development cost, guarantees the smooth drawing of patterns of bottle lid.

Drawings

FIG. 1 is a schematic structural view of a push plate and ejector plate secondary ejection control mechanism of the injection mold of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a perspective view of the engagement state of the latch, the latch releasing plate and the top plate;

FIG. 4 is a perspective view of the bayonet and top plate in engagement;

FIG. 5 is a perspective view of the engagement between the locking pin and the releasing plate.

Detailed Description

The utility model relates to a push plate and thimble plate secondary ejection control mechanism of an injection mold, as shown in figures 1-5, comprising an upper compound plate 1 and a lower compound plate 2, a runner plate 3 is arranged under the upper compound plate, the runner plate is connected with an injection nozzle 4, an upper liner plate 5 is arranged under the runner plate, a fixed template 6 is arranged under the upper liner plate, a fixed template insert 7 is arranged in the fixed template, a perforation 8 is arranged in the lower compound plate, a mold foot 9 is arranged on the lower compound plate, an upper thimble plate 10 and a lower thimble plate 11 are arranged on the lower compound plate between the mold feet, an thimble 12 is arranged between the upper and lower thimble plates, a lower liner plate 13 is arranged on the mold foot 9, an outer mold core fixing plate 14 and an inner mold core fixing plate 15 are arranged in the lower liner plate, an outer mold core 16 is arranged on the outer mold core fixing plate, an inner mold core 17 is arranged on the inner mold core fixing plate, the inner mold core passes through the outer mold core, a movable template 18 is arranged on the lower liner plate, an, a push plate 20 is arranged on a movable mould plate, an injection molding plastic bottle cap 21 is arranged among the push plate 20, an outer sleeve 19, an outer mould core 16, an inner mould core 17, an ejector pin 12 and a fixed mould insert 7, an outer convex ring 22 is arranged on the outer wall of the plastic bottle cap, the upper end of the push plate 20 is contacted with the outer convex ring, an inner convex ring 23 is arranged on the inner wall of the plastic bottle cap, the outer wall of the upper part of the outer mould core 16 is matched with the inner convex ring, an installation groove 24 is arranged on the side wall of the upper ejector plate 10, a spring 25 and a bayonet pin 26 are arranged in the installation groove, one end of the spring is contacted with the installation groove, the other end of the spring is contacted with the bayonet pin, a middle convex block 27 is arranged on the other end of the bayonet pin, an upper inclined guide surface 28 and an upper straight baffle surface 29 are arranged on the side wall of a lower compound plate 2, a lower inclined guide surface 31 is arranged on the ejector pin plate, the, the upper part of the trip plate 30 is inserted into the groove, and the lower ends of the top plate at the two sides of the groove are provided with lower straight retaining surfaces 34 which are contacted with the upper straight retaining surfaces. After the plastic bottle cap 21 is injection molded, the mold is opened from the fixed mold plate 6 and the push plate 20, the plastic bottle cap is left above the outer mold core 16, the inner mold core 17, the outer sleeve 19, the push plate 20 and the ejector pins 12, when the mold is gradually opened, the ejector pins of the injection molding machine penetrate through the through holes 8 of the lower compound plate 2 to push the upper ejector pin plates 10 and the lower ejector pin plates 11, the upper ejector pin plates and the lower ejector pin plates drive the ejector pins 12 and the bayonet pins 26 to move upwards, the upper straight blocking surfaces 29 of the bayonet pins are contacted with the lower straight blocking surfaces 34 of the top plate 32, the bayonet pins drive the top plate to move upwards, the top plate drives the push plate 20 to move upwards, the push plate and the ejector pins together push the plastic bottle cap 21 upwards, so that the inner annular ring 23 of the plastic bottle cap is firstly upwards separated from the outer mold core 16, when the upper inclined guide surfaces 28 of the bayonet pins 26 move upwards and are contacted with the lower inclined guide surfaces 31 of the pin separating, after the pin moves inwards, the upper straight blocking surface 29 of the pin is separated from the lower straight blocking surface 34 of the top plate 32, the pin does not push the top plate any more, the top plate and the push plate 20 stop moving upwards, the upper ejector plate 10 and the lower ejector plate 11 continue to drive the ejector pins to move upwards, and the ejector pins eject the plastic bottle caps upwards for demolding. This scheme injection mold push pedal, the ejecting control mechanism of thimble board secondary, set up spring 18, bayonet lock 19, roof 22 and take off 30 structures of pin board through the outer wall at the mould and control thimble and push pedal branch ejecting product of secondary, simplified the mould structure, it is more convenient that the mould is made, reduces mould development cost, guarantees the smooth drawing of patterns of bottle lid.

Claims

1. A push plate and ejector plate secondary ejection control mechanism of an injection mold comprises an upper compound plate (1) and a lower compound plate (2), wherein a runner plate (3) is arranged below the upper compound plate, the runner plate is connected with an injection nozzle (4), an upper padding plate (5) is arranged below the runner plate, a fixed template (6) is arranged below the upper padding plate, a fixed mold insert (7) is arranged in the fixed template, a perforation (8) is arranged in the lower compound plate, mold feet (9) are arranged on the lower compound plate, an upper ejector plate (10) and a lower ejector plate (11) are arranged on the lower compound plate between the mold feet, an ejector pin (12) is arranged between the upper ejector plate and the lower ejector plate, a lower padding plate (13) is arranged on the mold feet (9), an outer mold core fixing plate (14) and an inner mold core fixing plate (15) are arranged in the lower padding plate, an outer mold core (16) is arranged on the outer mold core fixing plate, an inner mold core (17) is arranged on the inner mold core, set up overcoat (19) on the movable mould board, the overcoat is passed to outer mold core, set up push pedal (20) on the movable mould board, at push pedal (20), overcoat (19), outer mold core (16), interior mold core (17), thimble (12), there is injection moulding's plastics bottle lid (21) between cover half insert (7), the outer wall system of plastics bottle lid has evagination ring (22), push pedal (20) upper end contacts with the evagination ring, the inner wall system of plastics bottle lid has interior bulge loop (23), the upper portion outer wall and the interior bulge loop of outer mold core (16) cooperate, its characterized in that: the lateral wall of going up thimble board (10) open and to have mounting groove (24), set up spring (25) and bayonet lock (26) in the mounting groove, one end and the mounting groove of spring contact, another of spring contacts with the bayonet lock, another system of bayonet lock has well lug (27), it has last oblique guide surface (28) and last straight fender face (29) to make on the well lug, lateral wall setting in lower double plate (2) takes off cotter board (30), it has down oblique guide surface (31) to take off the cotter board, down oblique guide surface cooperatees with the last oblique guide surface of bayonet lock, lateral wall at push pedal (20) sets up roof (32), the system has recess (33) in the roof, it inserts in the recess to take off the upper portion of cotter board (30), the roof is located the both sides lower extreme system of recess and has down straight fender face (34), down straight fender face and last straight fender face contact.