CN212045784U - Fixed die side inclined pulling mechanism of seat bottom foot connecting hole injection mold - Google Patents

Abstract

A fixed die side inclined drawing mechanism of an injection mold of chair seat footing connecting holes comprises an upper compound plate and a lower compound plate, wherein a fixed die plate is arranged below a base plate 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 movable die plate is arranged on the die feet, a side core-pulling slider and an inclined oil-pumping cylinder are arranged on one side of the movable die plate, the inclined oil-pumping cylinder is connected with the side core-pulling slider, a chair seat is arranged between the side core-pulling slider, the movable die plate and the fixed die plate, four inclined footing connecting holes are formed in the bottom surface of the chair seat, a chair backrest is formed on one side of the chair seat, a sliding seat is arranged in the base plate, an inclined sliding groove is formed in the sliding seat, an inclined drawing core rod is connected in the inclined sliding fit with the, the limiting plate is matched with the upper end of the limiting hole, and the lower end of the limiting pull rod penetrates through the limiting hole to be fixed with the fixed die plate.

Description

Fixed die side inclined pulling mechanism of seat bottom foot connecting hole injection mold

Technical Field

The utility model relates to an injection mold especially relates to seat support footing connecting hole injection mold cover half side is to one side taken out mechanism.

Background

When the injection mold performs injection molding on a plastic product, if one surface of the plastic product (such as a plastic chair seat) positioned on the side of the fixed mold plate is provided with a plurality of holes, and each hole inclines towards different directions, the prior art generally makes the inclination angle of the inclined hole small, and the inclined hole is separated in a forced separation mode, and the injection mold has the following defects: firstly, forced demoulding easily causes damage to the product during demoulding, and the product is scrapped; and secondly, the inclination angle of the inclined hole is small, if the chair seat is adopted, the inclined hole is connected with the chair leg, the inclination angle of the corresponding chair leg is small, and the poor placing stability of the chair is easy to cause.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, provide one kind and need not to do the inclined hole inclination for a short time, guarantee the smooth drawing of patterns of product, improve the seat support footing connecting hole injection mold cover half side of product yield and take out the mechanism to one side.

The utility model discloses seat support footing connecting hole injection mold cover half side is to one side take out technical scheme of mechanism and is: the injection molding machine comprises an upper compound plate and a lower compound plate, wherein a base plate is arranged below the upper compound plate, a fixed template is arranged below the base plate, a through hole is formed in the lower compound plate, mold feet are arranged on the lower compound plate, an upper thimble plate, a lower thimble plate and an ejector pin are arranged on the lower compound plate between the mold feet, the ejector pin 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 feet, a side core-pulling slide block and an inclined oil-pulling cylinder are arranged on one side of the movable template, a piston rod of the inclined oil-pulling cylinder is connected with the side core-pulling slide block, an injection molding chair seat is arranged among the side core-pulling slide block, the movable template and the fixed template, the ejector pin penetrates through the movable template to be contacted with the chair seat, four inclined bottom foot connecting holes are formed in the bottom surface of the chair seat, a chair backrest is formed on one side of the chair seat, the upper end of the inclined core pulling rod is in sliding fit with the inclined sliding groove, the lower end of the inclined core pulling rod penetrates through the fixed die plate to be matched with the bottom foot connecting hole of the seat, a limiting hole is formed in the backing plate, a limiting pull rod is arranged in the limiting hole, a limiting plate is arranged at the upper end of the limiting pull rod, the limiting plate is matched with the upper end of the limiting hole, and the lower end of the limiting pull rod penetrates through the limiting hole to be fixed with the fixed die plate.

The utility model discloses a fixed die side inclined pulling mechanism of a chair seat footing connecting hole injection mold, which is mainly characterized in that a slide seat is arranged in a base plate of the injection mold, the upper end of an inclined pulling rod is in sliding fit with an inclined chute of the slide seat, the lower end of the inclined pulling rod passes through a fixed die plate to be matched with the footing connecting hole of the chair seat, a limiting hole is arranged in the base plate, a limiting plate at the upper end of the limiting pulling rod is matched with the limiting hole, the lower end of the limiting pulling rod passes through the limiting hole to be fixed with the fixed die plate, after the chair seat is injection molded, the mold is firstly opened from the position between the base plate and the fixed die plate, at the moment, the fixed die plate, a movable die plate and the chair seat are moved downwards together, an inclined guide hole is arranged in the fixed die plate, the inclined guide hole is matched with the inclined pulling rod, the inclined pulling rod can be moved along the inclined direction of the inclined guide hole, after the core pulling of the bottom foot connecting hole is completed, a limiting plate at the upper end of a limiting pull rod is in contact with a limiting hole in a base plate, the limiting hole plays a limiting role in the limiting pull rod, the limiting pull rod pulls a fixed die plate to stop moving downwards, the die is subjected to secondary die opening from the fixed die plate and a movable die plate, finally, an upper ejector plate and a lower ejector plate are driven by an ejector rod of an injection molding machine to move upwards, and the upper ejector plate and the lower ejector plate drive the ejector pin to eject the seat after secondary die opening out and demold upwards. This scheme seat support footing connecting hole injection mold cover half side is taken out mechanism to one side, utilizes to set up the slide, take out core bar and spacing pull rod, spacing pore structure to one side at injection mold's fixed die plate, makes the mould open the mould earlier in backing plate and fixed die plate department, need not to do inclined hole inclination little, also can guarantee the smooth drawing of patterns of product, improves product yield.

The utility model discloses seat support footing connecting hole injection mold cover half side is to one side take out the mechanism, backing plate and fixed die plate between open and to have the spring groove, set up the spring in the spring groove. The spring is arranged, when the die is opened from the base plate and the fixed die plate for the first time, the base plate and the fixed die plate are opened firstly under the auxiliary action of the elastic force of the spring.

Drawings

FIG. 1 is a schematic structural view of a fixed mold side inclined pulling mechanism of an injection mold for connecting holes of bottom feet of a seat;

FIG. 2 is a perspective view showing the fitting state of the upper complex plate, the backing plate, the inclined core rod and the seat;

fig. 3 is a perspective view showing the matching state of the sliding seat, the inclined core rod and the chair seat.

Detailed Description

The utility model relates to a fixed die side inclined drawing mechanism of a chair bottom foot connecting hole injection mold, as shown in figures 1-3, comprising an upper compound plate 1 and a lower compound plate 2, a backing plate 3 is arranged under the upper compound plate, a fixed mold plate 4 is arranged under the backing plate, a perforation 5 is arranged in the lower compound plate, mold feet 6 are arranged on the lower compound plate, an upper thimble plate 7, a lower thimble plate 8 and thimbles 9 are arranged on the lower compound plate between the mold feet, the thimble of an injection machine passes through the perforation 5 to be contacted with the lower thimble plate 8, a movable mold plate 11 is arranged on the mold feet, a side core-pulling slider 12 and an inclined oil-pumping cylinder 13 are arranged on one side of the movable mold plate, a side core-pulling slider 12 is connected with a piston rod of the inclined oil-pumping cylinder, an injection molded chair seat 14 is arranged between the side core-pulling slider, the movable mold plate 11 and the fixed mold plate 4, the thimbles 9 pass through the movable mold plate 11 to be, the side core-pulling slide block 12 is matched with a chair backrest, a slide seat 17 is arranged in the base plate 3, the slide seat is fixed with the base plate through a fastener, an inclined sliding groove 18 is formed in the slide seat, an inclined core-pulling rod 19 is connected in the inclined sliding groove, the upper end of the inclined core-pulling rod is in sliding fit with the inclined sliding groove, the lower end of the inclined core-pulling rod penetrates through the fixed die plate 4 to be matched with a footing connecting hole 15 of the chair seat 14, a limiting hole 20 is formed in the base plate 3, a limiting pull rod 21 is arranged in the limiting hole, a limiting plate 22 is arranged at the upper end of the limiting pull rod and is matched with the upper end of the limiting. The method is mainly characterized in that a sliding seat 17 is arranged in a backing plate 3 of an injection mold, the upper end of an inclined core-pulling rod 19 is in sliding fit with an inclined sliding groove 18 of the sliding seat 17, the lower end of the inclined core-pulling rod 19 passes through a fixed template 4 to be matched with a foot connecting hole 15 of a seat 14, a limiting hole 20 is formed in the backing plate 3, a limiting plate 22 at the upper end of a limiting pull rod 21 is matched with the limiting hole 20, the lower end of the limiting pull rod 21 passes through the limiting hole 20 to be fixed with the fixed template 4, after the seat 14 is injection molded, the mold is firstly opened from between the backing plate 3 and the fixed template 4, at the moment, the fixed template 4, a movable template 11 and the seat 14 all move downwards together, an inclined guide hole is formed in the fixed template 4 and is matched with the inclined core-pulling rod 19, so that the inclined core-pulling rod can move along the inclined direction of the inclined guide hole, meanwhile, the upper end of the inclined core, after the core pulling of the bottom foot connecting hole is completed, a limiting plate 22 at the upper end of a limiting pull rod 21 is in contact with a limiting hole 20 in a base plate 3, the limiting hole plays a limiting role in limiting the limiting pull rod, the limiting pull rod 21 pulls a fixed die plate 4 to stop moving downwards, the die is opened from the fixed die plate 4 and a movable die plate 11 for the second time, finally, an ejector rod of an injection molding machine drives an upper ejector pin plate 7 and a lower ejector pin plate 8 to move upwards, and the upper ejector pin plate and the lower ejector pin plate drive an ejector pin 9 to eject the seat 14 subjected to the secondary die opening upwards. This scheme seat support footing connecting hole injection mold cover half side is taken out mechanism to one side, utilizes and sets up slide 17, take out core bar 19 and spacing pull rod 21, spacing hole 20 structure to one side at injection mold's fixed die plate 4, makes the mould locate earlier the die sinking at backing plate 3 and fixed die plate 4, need not to do inclined hole inclination little, also can guarantee the smooth drawing of patterns of product, improves product yield. A spring groove 23 is arranged between the backing plate 3 and the fixed template 4, and a spring 24 is arranged in the spring groove. With the spring 24, when the die is opened from the backing plate 3 and the fixed die plate 4 for the first time, the backing plate 3 and the fixed die plate 4 are opened firstly under the auxiliary action of the elastic force of the spring 24.

Claims (2)

1. A fixed die side inclined pulling mechanism of an injection mold with a bottom foot connecting hole of a seat comprises an upper compound plate (1) and a lower compound plate (2), a base plate (3) is arranged below the upper compound plate, a fixed mold plate (4) is arranged below the base plate, a through hole (5) is formed in the lower compound plate, mold feet (6) are arranged on the lower compound plate, an upper ejector pin plate (7), a lower ejector pin plate (8) and ejector pins (9) are arranged on the lower compound plate between the mold feet, ejector pins of an injection machine penetrate through the through hole (5) to be contacted with the lower ejector pin plate (8), a movable mold plate (11) is arranged on the mold feet, a side core-pulling slider (12) and an inclined pulling oil cylinder (13) are arranged on one side of the movable mold plate, a piston rod of the inclined pulling oil cylinder is connected with the side core-pulling slider (12), an injection molded seat (14) is arranged between the side core-pulling slider, the movable mold plate (11), the bottom surface system of seat support has footing connecting hole (15) of four slopes, and one side system of seat support has back of the chair (16), and side slider (12) of loosing core cooperatees its characterized in that with the back of the chair: backing plate (3) in set up slide (17), the slide is fixed mutually with the backing plate through the fastener, the system has oblique spout (18) in the slide, connect oblique core bar (19) of taking out in the spout to one side, take out the upper end and the oblique spout sliding fit of core bar to one side, the lower extreme of taking out the core bar to one side passes footing connecting hole (15) of fixed die plate (4) and seat support (14) and cooperatees, division spacing hole (20) have been seted up in backing plate (3), set up spacing pull rod (21) in the spacing hole, the upper end system of spacing pull rod has limiting plate (22), the limiting plate cooperatees with spacing hole upper end, spacing pull rod lower extreme passes spacing hole and fixed die plate (4) mutually.

2. The fixed mold side inclined pulling mechanism of the chair seat bottom connecting hole injection mold according to claim 1, characterized in that: a spring groove (23) is formed between the backing plate (3) and the fixed template (4), and a spring (24) is arranged in the spring groove.

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