CN212603144U - Core-pulling mechanism for fixed-mold side inclined hole of injection mold - Google Patents

Abstract

The core pulling mechanism for the fixed die side inclined hole of the injection mold comprises an upper compound plate and a lower compound plate, wherein a fixed die plate is arranged below the upper compound plate, a through hole is formed in the lower compound plate, die feet are arranged on the lower compound plate, an upper thimble plate, a lower thimble plate and thimbles are arranged on the lower compound plate between the die feet, a thimble of an injection machine penetrates through the through hole to be contacted with the lower thimble plate, a movable template is arranged on the mold foot, an injection molding plastic piece is arranged between the movable template and the fixed template, an oblique rod is arranged on one side of the plastic piece positioned on the fixed template, a sliding seat is arranged in the upper compound plate, a sliding groove is arranged in the sliding seat, an inclined guide hole is arranged in the fixed template, an inclined core drawing rod is arranged in the inclined guide hole, an inclined groove is arranged at the lower end of the inclined core drawing rod, the inclined groove is matched with an inclined rod of the plastic part, the upper end of the inclined core drawing rod is matched with the sliding groove, and a fixed distance pulling device is arranged in the upper compound plate and the fixed template, and the fixed template is matched with the upper compound plate through the fixed distance pulling device.

Description

Core-pulling mechanism for fixed-mold side inclined hole of injection mold

Technical Field

The utility model relates to an injection mold especially relates to injection mold decides mould side inclined hole mechanism of loosing core.

Background

In injection mold, if the working of plastics is located fixed die plate one side system has the down tube, prior art is usually to do the inclination of down tube for a short time, behind the working of plastics injection moulding, makes the down tube of working of plastics deviate from the fixed die plate through the mode of taking off by force, and the problem that this structure exists is: the inclined rod of the plastic part is easily pulled to deform or even pulled to break in the forced demoulding process, once the inclined rod is pulled to break, the inclined rod is remained in the fixed mould plate, the influence on the next injection moulding is not discovered in time, and the inclined rod remained in the fixed mould plate after the inclined rod is pulled to break is difficult to take out.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, provide one kind and guarantee that the working of plastics is located fixed die plate one side down tube and loose core smoothly, improve the injection mold fixed die side inclined hole mechanism of loosing core of working of plastics yield.

The utility model discloses injection mold fixed die side inclined hole mechanism of loosing core's technical scheme is: the injection molding device comprises an upper compound plate and a lower compound plate, wherein a fixed template is arranged below the upper compound plate, a through hole is formed in the lower compound plate, mold feet are arranged on the lower compound plate, an upper ejector plate, a lower ejector plate and an ejector pin are arranged on the lower compound plate between the mold feet, an ejector rod of an injection machine penetrates through the through hole to be in contact with the lower ejector plate, a movable template is arranged on each mold foot, an injection molding plastic piece is arranged between the movable template and the fixed template, an inclined rod is arranged on one side of the fixed template, a sliding seat is arranged in the upper compound plate, a sliding groove is formed in the sliding seat, an inclined guide hole is formed in the fixed template, an inclined core rod is arranged in the inclined guide hole, an inclined groove is formed at the lower end of the inclined core rod and matched with the inclined rod of the plastic piece, the upper end of the inclined core rod is matched with the sliding groove, a fixed distance pulling device is arranged in.

The utility model discloses a core pulling mechanism for the side inclined holes of a fixed die of an injection mould, after the injection moulding of a plastic piece, a lower compound plate drives a die pin, an upper ejector plate, a lower ejector plate, an ejector pin, a movable die plate, the plastic piece and a fixed die plate to move backwards together, the upper compound plate is fixed with the injection moulding machine, an upper compound plate, a sliding seat and an inclined core pulling rod are kept still, so that the mould is firstly opened from the upper compound plate to the fixed die plate for the first time, when the fixed die plate moves backwards gradually, an inclined guide hole in the fixed die plate is matched with the inclined core pulling rod, because the upper end of the inclined core pulling rod is in spacing fit with a sliding groove in the sliding seat, the inclined core pulling rod drives the inclined core pulling rod to move gradually along the inclined direction of the inclined guide hole and the horizontal direction of the sliding groove, so that the inclined core pulling rod pulls out an inclined rod on the plastic piece gradually, after the core pulling action of the inclined core pulling rod is completed, the fixed die plate stops moving backwards under, at the moment, the mold is opened at the position of the fixed mold plate and the movable mold plate for the second time, and finally, the ejector rod of the injection machine drives the upper ejector plate, the lower ejector plate and the ejector pin to eject out the plastic part for demolding. This scheme injection mold cover half side inclined hole mechanism of loosing core sets up the slide and looses the core bar to one side through cover half one side, utilizes mould secondary die sinking, makes the inclined rod of loosing core bar slope earlier and take out the working of plastics to one side, with the ejecting drawing of patterns of working of plastics at last, guarantees that the inclined rod of working of plastics can loose core smoothly, improves the yield of working of plastics.

The utility model discloses injection mold fixed die side inclined hole mechanism of loosing core, distance pulling device include and set up the distance pull rod in last compound board, the upper end and the last compound board of distance pull rod are fixed mutually, it has the distance dead slot to open in the fixed die plate, the lower extreme of distance pull rod passes the distance dead slot and connects the distance and draw the piece, the distance is drawn the piece and is matched with the distance dead slot. When the mold is opened from the position between the upper compound plate and the fixed mold plate for the first time, after the fixed mold plate is opened and moved in place, the fixed mold plate stops moving by the matching of the distance pull block of the distance pull rod and the distance pull groove, and the movable mold plate continues to move backwards, so that the mold is opened from the position between the fixed mold plate and the movable mold plate for the second time.

Drawings

FIG. 1 is a schematic view of a mold closing state structure of a fixed-mold side inclined hole core-pulling mechanism of an injection mold;

FIG. 2 is a schematic structural diagram of a mold opening state of a core-pulling mechanism of a fixed-mold side inclined hole of an injection mold;

FIG. 3 is a schematic structural diagram of a secondary mold opening state of the injection mold fixed-mold side inclined-hole core-pulling mechanism.

Detailed Description

The utility model relates to a core pulling mechanism for inclined holes at the fixed die side of an injection mould, as shown in figures 1-3, comprising an upper compound plate 1 and a lower compound plate 2, wherein a fixed die plate 3 is arranged under the upper compound plate, a perforation 4 is arranged in the lower compound plate, a die foot 5 is arranged on the lower compound plate, an upper thimble plate 6, a lower thimble plate 7 and a thimble 8 are arranged on the lower compound plate between the die feet, a thimble 9 of an injection machine passes through the perforation 4 to be contacted with the lower thimble plate 7, a movable die plate 10 is arranged on the die foot 5, an injection molding plastic part 11 is arranged between the movable die plate and the fixed die plate 3, an inclined rod 12 is arranged at one side of the fixed die plate, a slide seat 13 is arranged in the upper compound plate 1, a chute 14 is arranged in the slide seat, an inclined guide hole 15 is arranged in the fixed die plate 3, an inclined core pulling rod 16 is arranged in the inclined guide hole, a chute 17 is arranged at the lower end of the inclined core pulling rod, the chute is matched with the inclined rod, a fixed distance pulling device is arranged in the upper compound plate 1 and the fixed template 3, and the fixed template is matched with the upper compound plate 1 through the fixed distance pulling device. After the plastic part 11 is injection molded, the lower compound plate 2 drives the mold foot 5, the upper thimble plate 6, the lower thimble plate 7, the thimble 8, the movable mold plate 10, the plastic part 11 and the fixed mold plate 3 to move backwards together, the upper compound plate 1 is fixed with the injection molding machine, the upper compound plate 1, the sliding seat 13 and the inclined core-pulling rod 16 are kept still, so that the mold is firstly opened from the position between the upper compound plate 1 and the fixed mold plate 3 for the first time, when the fixed mold plate 3 gradually moves backwards, the inclined guide hole 15 in the fixed mold plate is matched with the inclined core-pulling rod 16, because the upper end of the inclined core-pulling rod is in limit fit with the sliding groove 14 in the sliding seat 13, the inclined guide hole 15 drives the inclined core-pulling rod 16 to gradually move along the inclined direction of the inclined guide hole 15 and the horizontal direction of the sliding groove 14, so that the inclined core-pulling rod 16 gradually pulls the inclined rod 12 on the plastic part 11, after the inclined core-pulling rod 16 completes, and the movable template 10 and the plastic part 11 continue to move backwards along with the lower compound plate 2, at the moment, the mold is opened for the second time at the fixed template 3 and the movable template 10, and finally, the ejector rod 9 of the injection machine drives the upper ejector pin plate 6, the lower ejector pin plate 7 and the ejector pin 8 to eject and demold the plastic part 11. This scheme injection mold cover half side inclined hole mechanism of loosing core sets up slide 13 and oblique core pulling rod 16 through cover half one side, utilizes mould secondary die sinking, makes oblique core pulling rod 16 slope earlier and takes out the down tube 12 of working of plastics 11, and the ejector drawing of patterns with working of plastics 11 at last guarantees that the down tube of working of plastics can loose core smoothly, improves the yield of working of plastics. The distance pulling device comprises a distance pull rod 18 arranged in the upper compound plate 1, the upper end of the distance pull rod is fixed with the upper compound plate, a distance pull groove 19 is formed in the fixed template 3, the lower end of the distance pull rod penetrates through the distance pull groove to be connected with a distance pull block 20, and the distance pull block is matched with the distance pull groove. When the mold is opened from the position between the upper compound plate 1 and the fixed mold plate 3 for the first time, after the mold opening of the fixed mold plate is moved to the proper position, the fixed mold plate 3 stops moving by the matching of the distance pull block 20 of the distance pull rod 18 and the distance pull groove 19, and the movable mold plate 10 continues to move backwards, at this time, the mold is opened from the position between the fixed mold plate 3 and the movable mold plate 10 for the second time.

Claims (2)

1. Injection mold fixed mould side inclined hole mechanism of loosing core, including compound board (1) and lower compound board (2), set up fixed die plate (3) under going up the compound board, it has perforation (4) to open in the compound board down, set up moulding foot (5) on the compound board down, thimble board (6) are gone up to setting up on the lower compound board between the moulding foot, thimble board (7) and thimble (8) down, ejector pin (9) of injection machine pass perforation (4) and contact with thimble board (7) down, set up movable mould board (10) on moulding foot (5), there are injection moulding's working of plastics (11) between movable mould board and fixed die plate (3), the working of plastics is located fixed die plate one side system and has down tube (12), its characterized in that: the plastic part drawing device is characterized in that a sliding seat (13) is arranged in the upper compound plate (1), a sliding groove (14) is formed in the sliding seat, an inclined guide hole (15) is formed in the fixed template (3), an inclined drawing core rod (16) is arranged in the inclined guide hole, a chute (17) is formed in the lower end of the inclined drawing core rod, the chute is matched with an inclined rod (12) of a plastic part (11), the upper end of the inclined drawing core rod is matched with the sliding groove (14), a fixed-distance pulling device is arranged in the upper compound plate (1) and the fixed template (3), and the fixed template is matched with the upper compound plate (1) through the fixed-distance.

2. The injection mold die-set side inclined hole core-pulling mechanism according to claim 1, characterized in that: the distance pulling device comprises a distance pull rod (18) arranged in an upper composite plate (1), the upper end of the distance pull rod is fixed with the upper composite plate, a distance pull groove (19) is formed in a fixed template (3), the lower end of the distance pull rod (18) penetrates through the distance pull groove to be connected with a distance pull block (20), and the distance pull block is matched with the distance pull groove.

Images