CN216968563U

CN216968563U - Secondary ejection mechanism for plastic chair base

Info

Publication number: CN216968563U
Application number: CN202220076640.0U
Authority: CN
Inventors: 柯益民; 赵春兵
Original assignee: Taizhou Huangyan Huayang Plastic Mould Co ltd
Current assignee: Taizhou Huangyan Huayang Plastic Mould Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-07-15
Anticipated expiration: 2032-01-12

Abstract

The utility model provides a secondary ejection mechanism for a plastic chair base, and belongs to the technical field of molds. It includes the die holder, the die holder downside be equipped with the base, the base on be connected with thimble fixed plate through lifting unit, thimble fixed plate and lifting unit sliding connection, thimble fixed plate on be equipped with the straight ejector pin of a plurality of vertical settings, straight ejector pin and oblique ejector pin top run through the die holder and link to each other with the one-tenth die cavity of die holder up end, the base on still be equipped with the oblique ejector pin of a plurality of slopes settings and the ejecting subassembly of secondary that links to each other with thimble fixed plate. Lifting unit on the base can drive ejector pin fixed plate and go up and down along vertical direction, thereby ejector pin fixed plate rises and can drive a plurality of straight ejector pins and rise and to make progress ejecting one section distance with the product on the upper die base, behind the ejecting one section distance of product, thereby the ejecting subassembly of secondary can drive a plurality of oblique ejector pins slope upward movement can be ejecting with the product slant.

Description

Secondary ejection mechanism for plastic chair base

Technical Field

The utility model belongs to the technical field of molds, and relates to a secondary ejection mechanism for a plastic chair base.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material, the product needs to be ejected out by an ejection mechanism after the product is ejected out by the injection mold, but when the product with an inclined plane is ejected out, the product needs to be ejected out upwards for a certain distance, and then the product is ejected out from the inclined direction.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses an injection mold [ application number: 201921717818.X ], including cover half and movable mould, the surface of cover half and movable mould all is provided with the mold core, the side surface of cover half is fixed with the gag lever post, the spacing groove has been seted up to the side surface of movable mould, positioning groove has been seted up on the surface of gag lever post, the interior surface mounting of gag lever post has the location sand grip with positioning groove looks adaptation, the inside of gag lever post inserted the spacing groove, the exhaust hole has all been seted up on the surface of cover half and movable mould, but also has above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a secondary ejection mechanism for a plastic chair base.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a plastics chair base secondary ejection mechanism, includes the die holder, its characterized in that, the die holder downside be equipped with the base, the base on be connected with thimble fixed plate through lifting unit, thimble fixed plate and lifting unit sliding connection, thimble fixed plate on be equipped with the straight ejector pin of a plurality of vertical settings, straight ejector pin and oblique ejector pin top run through the die holder and link to each other with the shaping chamber of die holder up end, the base on still be equipped with the oblique ejector pin of a plurality of slopes settings and the secondary ejection subassembly that links to each other with thimble fixed plate.

In foretell plastic chair base secondary ejection mechanism, the ejecting subassembly of secondary including setting up the connecting plate between thimble fixed plate and base, oblique ejector pin bottom run through thimble fixed plate and articulated with the connecting plate, the base both sides link firmly the jacking board through bolt detachable, the jacking inboard in be equipped with the jacking spout, jacking spout sliding connection have the secondary jacking piece that links to each other with the connecting plate.

In the secondary ejection mechanism for the plastic chair base, the lifting assembly comprises a lifting driver fixed on the lower side of the base, and an output shaft of the lifting driver penetrates through the base and is movably connected with the bottom of the connecting plate.

In the above-mentioned plastic chair base secondary ejection mechanism, the junction of thimble fixed plate and lift driver be connected with the knock-out rod through the joint structure, lift driver's output shaft top and knock-out rod swing joint.

In foretell plastic chair base secondary ejection mechanism, the joint structure including set up the knock-out pin mounting groove at ejector fixing plate, ejector fixing plate on knock-out pin mounting groove both sides be equipped with outside convex joint piece, the joint piece insert to the joint inslot of knock-out pin both sides.

In the secondary ejection mechanism for the plastic chair base, the side part of the ejection rod mounting groove is also provided with an ejection rod separation groove, and a spring which is abutted against the side part of the ejection rod is horizontally arranged in the ejection rod separation groove.

In the secondary ejection mechanism for the plastic chair base, the sections of the ejection rod mounting groove and the ejection rod disengaging groove are both U-shaped.

In the secondary ejection mechanism for the plastic chair base, the cross section of the clamping block is arc-shaped.

In the above-mentioned plastic chair base secondary ejection mechanism, the thimble fixed plate on link firmly four straight ejector pins, four straight ejector pins combinations are the rectangle, and two liang of a set of four straight ejector pins are located the both sides of ejector pin mounting groove respectively, the thimble fixed plate on be equipped with two oblique ejector pins, two oblique ejector pins are along the central line symmetry of ejector pin mounting groove.

In foretell plastic chair base secondary ejection mechanism, lower die holder and base between link firmly two vertical spacing posts that set up, the cross-section of spacing post be the rectangle, thimble fixed plate both sides be equipped with the spacing groove of spacing post looks adaptation, spacing post insert to the spacing inslot.

Compared with the prior art, the utility model has the advantages that:

1. lifting unit on the base can drive thimble fixed plate and go up and down along vertical direction, thereby thimble fixed plate rises and can drive a plurality of straight ejector pins and rise and can upwards ejecting one section distance with the product on the upper die base, thereby the ejecting subassembly of secondary can drive a plurality of oblique ejector pins slope upward movement can be ejecting with the product slant after the ejecting one section distance of product.

2. The external actuating mechanism of secondary jacking piece, after lifting unit drive thimble fixed plate upward movement a distance, actuating mechanism can drive the secondary jacking piece upward movement in the jacking board of base both sides, thereby secondary jacking piece upward movement can drive connecting plate upward movement can cooperate the slant ejecting that the product was accomplished to the ejector pin to the slant, and the jacking spout can carry on spacingly to secondary jacking piece.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a three-dimensional view of the present invention;

FIG. 2 is a three-dimensional view of another aspect of the present invention;

fig. 3 is a schematic cross-sectional view of the present invention.

Detailed Description

As shown in fig. 1-3, a plastics chair base secondary ejection mechanism, including die holder 1, its characterized in that, 1 downside of die holder be equipped with base 2, base 2 on be connected with ejector fixing plate 4 through lifting unit 3, ejector fixing plate 4 and lifting unit 3 sliding connection, ejector fixing plate 4 on be equipped with a plurality of vertical straight ejector pins 5 that set up, straight ejector pin 5 and oblique ejector pin 6 top run through die holder 1 and link to each other with the shaping chamber of die holder 1 up end, base 2 on still be equipped with the oblique ejector pin 6 of a plurality of slopes settings and the secondary ejection assembly 7 that links to each other with ejector fixing plate 4.

In this embodiment, the lifting unit on the base can drive the thimble fixing plate to go up and down along vertical direction, thereby the thimble fixing plate rises and can drive a plurality of straight ejector pins and rise and can upwards ejecting one section distance with the product on the upper die base, thereby after the ejecting one section distance of product, the ejecting subassembly of secondary can drive a plurality of oblique ejector pins slope upward movement can be ejecting with the product slant.

Specifically speaking, as shown in fig. 1-3, the secondary ejection assembly 7 includes a connecting plate 8 arranged between the thimble fixing plate 4 and the base 2, the bottom of the oblique ejector rod 6 penetrates through the thimble fixing plate 4 and is hinged with the connecting plate, two sides of the base 2 are fixedly connected with a jacking plate 9 through a bolt detachable, the jacking plate 9 is internally provided with a jacking chute 10, and the jacking chute 10 is internally slidably connected with a secondary jacking block 11 connected with the connecting plate 8. The external actuating mechanism of secondary jacking piece, after lifting unit drive thimble fixed plate upward movement a distance, actuating mechanism can drive the secondary jacking piece upward movement in the jacking board of base both sides, thereby secondary jacking piece upward movement can drive connecting plate upward movement can cooperate the slant ejecting that the product was accomplished to the ejector pin to the slant, and the jacking spout can carry on spacingly to secondary jacking piece.

Specifically, as shown in fig. 1-2, the lifting assembly 3 includes a lifting driver 12 fixed on the lower side of the base 2, and an output shaft of the lifting driver 12 penetrates through the base 2 and is movably connected with the bottom of the connecting plate 8. The lifting driver can drive the connecting plate and the thimble fixing plate on the connecting plate to move upwards.

It will be appreciated by those skilled in the art that the lift drive may be a cylinder, linear motor, or the like.

Preferably, as shown in fig. 1-3, the connection between the thimble fixing plate 4 and the lifting driver 12 is connected to an ejector rod 14 through a clamping structure 13, and the top of the output shaft of the lifting driver 12 is movably connected to the ejector rod 14. The lifting driver can drive the ejector rod to move upwards, the ejector rod can drive the ejector pin fixing plate to move upwards through the clamping structure, and the top of the output shaft of the lifting driver 12 is movably connected with the ejector rod 14, so that the ejector rod can be detached conveniently.

Specifically, as shown in fig. 1 to fig. 3, the clamping structure 13 includes an ejector rod mounting groove 15 disposed on the ejector pin fixing plate 4, and outwardly protruding clamping blocks 16 are disposed on two sides of the ejector rod mounting groove 15 on the ejector pin fixing plate 4, and the clamping blocks 16 are inserted into clamping grooves 17 on two sides of the ejector rod 14. When the lifting driver drives the ejector rod to move upwards, the clamping blocks are matched with the clamping grooves in the ejector rod to drive the ejector pin fixing plate to move upwards.

Preferably, as shown in fig. 1-3, the side of the ejector rod mounting groove 15 is further provided with an ejector rod disengaging groove 18, and a spring abutting against the side of the ejector rod 14 is horizontally arranged in the ejector rod disengaging groove 18. Thereby the spring can apply the thrust of horizontal direction to the ejector pin and can make the ejector pin can be located the ejector pin mounting groove, when needing to dismantle the ejector pin, promotes the ejector pin and overcomes the spring elastic force and can push away the ejector pin to the ejector pin and break away from the inslot, thereby makes the joint on the ejector pin grasp break away from with the joint piece and can follow ejector pin fixed plate and pull down the ejector pin.

Specifically, the ejector rod mounting groove 15 and the ejector rod release groove 18 are both U-shaped in cross section. The cross section of the clamping block 16 is arc-shaped.

Specifically, as shown in fig. 1 to fig. 3, four straight ejector rods 5 are fixedly connected to the ejector pin fixing plate 4, the four straight ejector rods 5 are combined to form a rectangle, two of the four straight ejector rods 5 are respectively located on two sides of the ejector rod mounting groove 15, two oblique ejector rods 6 are arranged on the ejector pin fixing plate 4, and the two oblique ejector rods 6 are symmetrical along the center line of the ejector rod mounting groove 15.

Preferably, as shown in fig. 1-3, two vertically arranged limiting posts 19 are fixedly connected between the lower die holder 1 and the base 2, the cross section of each limiting post 19 is rectangular, limiting grooves 20 matched with the limiting posts 19 are arranged on two sides of the thimble fixing plate 4, and the limiting posts 19 are inserted into the limiting grooves 20. The limiting groove 20 can limit the thimble fixing plate by matching with the limiting column 19.

The working principle of the utility model is as follows: the lifting assembly on the base can drive the thimble fixing plate to lift along the vertical direction, the thimble fixing plate can drive the straight ejector rods to lift so as to eject a product on the upper die base upwards for a certain distance, and after the product is ejected for a certain distance, the secondary ejection assembly can drive the inclined ejector rods to move upwards in an inclined manner so as to eject the product in an inclined manner;

the secondary jacking block is externally connected with a driving mechanism, after the lifting assembly drives the ejector pin fixing plate to move upwards for a certain distance, the driving mechanism can drive the secondary jacking block in the jacking plates on two sides of the base to move upwards, the secondary jacking block can drive the connecting plate to move upwards so as to be matched with the inclined ejector rod to finish the inclined ejection of a product, the jacking chute can limit the secondary jacking block, the lifting driver can drive the connecting plate and the ejector pin fixing plate on the connecting plate to move upwards, the lifting driver can drive the ejector rod to move upwards, the ejector rod can move upwards and drive the ejector pin fixing plate to move upwards through the clamping structure, the top of the output shaft of the lifting driver 12 and the ejector rod 14 are movably connected so as to facilitate the disassembly of the ejector rod, and when the lifting driver drives the ejector rod to move upwards, the clamping block is matched with the clamping groove on the ejector rod to drive the ejector pin fixing plate to move upwards;

thereby the spring can exert the thrust of horizontal direction to the knock-out pin and can make the knock-out pin can be located the knock-out pin mounting groove, when needing to dismantle the knock-out pin, promotes the knock-out pin and overcomes the spring elastic force and can push away the knock-out pin to the knock-out pin breaks away from the inslot, thereby makes thereby the joint on the knock-out pin and the joint piece break away from can pull down the knock-out pin from the thimble fixed plate, spacing groove 20 cooperation spacing post 19 can carry on spacingly to the thimble fixed plate.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a plastics chair base secondary ejection mechanism, includes die holder (1), its characterized in that, die holder (1) downside be equipped with base (2), base (2) on be connected with ejector fixing plate (4) through lifting unit (3), ejector fixing plate (4) and lifting unit (3) sliding connection, ejector fixing plate (4) on be equipped with straight ejector pin (5) of a plurality of vertical settings, straight ejector pin (5) and oblique ejector pin (6) top run through die holder (1) and link to each other with the shaping chamber of die holder (1) up end, base (2) on still be equipped with oblique ejector pin (6) of a plurality of slopes settings and secondary ejection subassembly (7) that link to each other with ejector fixing plate (4).

2. The plastic chair base secondary ejection mechanism according to claim 1, wherein the secondary ejection assembly (7) comprises a connecting plate (8) arranged between the thimble fixing plate (4) and the base (2), the bottom of the oblique ejector rod (6) penetrates through the thimble fixing plate (4) and is hinged to the connecting plate, two sides of the base (2) are fixedly connected with a jacking plate (9) through bolts in a detachable manner, the jacking plate (9) is internally provided with a jacking chute (10), and the jacking chute (10) is connected with a secondary jacking block (11) connected with the connecting plate (8) in a sliding manner.

3. The plastic chair base secondary ejection mechanism as claimed in claim 2, wherein the lifting assembly (3) comprises a lifting driver (12) fixed on the lower side of the base (2), and an output shaft of the lifting driver (12) penetrates through the base (2) and is movably connected with the bottom of the connecting plate (8).

4. The secondary ejection mechanism of the plastic chair base as claimed in claim 3, wherein the connection between the thimble fixing plate (4) and the lifting driver (12) is connected with an ejector rod (14) through a clamping structure (13), and the top of the output shaft of the lifting driver (12) is abutted against the bottom of the ejector rod (14).

5. The plastic chair base secondary ejection mechanism according to claim 4, wherein the clamping structure (13) comprises an ejector rod mounting groove (15) arranged on the ejector pin fixing plate (4), clamping blocks (16) protruding outwards are arranged on two sides of the ejector rod mounting groove (15) on the ejector pin fixing plate (4), and the clamping blocks (16) are inserted into clamping grooves (17) on two sides of the ejector rod (14).

6. The secondary ejection mechanism for the plastic chair base as claimed in claim 5, wherein an ejection rod disengaging groove (18) is further provided at a side of the ejection rod mounting groove (15), and a spring abutting against a side of the ejection rod (14) is horizontally provided in the ejection rod disengaging groove (18).

7. The secondary ejection mechanism of the plastic chair base as claimed in claim 6, wherein the sections of the ejection rod mounting groove (15) and the ejection rod disengaging groove (18) are both U-shaped.

8. The plastic chair base secondary ejection mechanism as claimed in claim 5, wherein the cross section of the clamping block (16) is arc-shaped.

9. The plastic chair base secondary ejection mechanism according to claim 5, wherein the ejector pin fixing plate (4) is fixedly connected with four straight ejector pins (5), the four straight ejector pins (5) are combined to form a rectangle, two groups of the four straight ejector pins (5) are respectively arranged at two sides of the ejector pin mounting groove (15), two inclined ejector pins (6) are arranged on the ejector pin fixing plate (4), and the two inclined ejector pins (6) are symmetrical along the center line of the ejector pin mounting groove (15).

10. The plastic chair base secondary ejection mechanism of claim 1, wherein two vertically arranged limiting columns (19) are fixedly connected between the lower die holder (1) and the base (2), the cross sections of the limiting columns (19) are rectangular, limiting grooves (20) matched with the limiting columns (19) are formed in two sides of the ejector pin fixing plate (4), and the limiting columns (19) are inserted into the limiting grooves (20).