CN111730829B

CN111730829B - Product BOSS post ejection mechanism

Info

Publication number: CN111730829B
Application number: CN202010729155.4A
Authority: CN
Inventors: 林从盛; 葛文枝; 杨良建; 周泽汉
Original assignee: Ninghai Xiandai Mould Co ltd
Current assignee: Ninghai Xiandai Mould Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-11-13
Anticipated expiration: 2040-07-27
Also published as: CN111730829A

Abstract

The invention discloses a product BOSS column ejection mechanism which comprises an ejection block seat, an ejector pin and at least two half blocks, wherein the ejection block seat and the half blocks are arranged in a movable die, the lower ends of the half blocks are rotatably matched in the ejection block seat, a groove for forming the outer side surface of a BOSS column is arranged on the side surface of the upper end of the half block close to the BOSS column, a protrusion for forming an inverted buckle is arranged in the groove, the upper end of the ejector pin penetrates through the ejection block seat and extends into the hole, the ejector pin drives the ejection block seat and the half blocks to eject the product upwards when the product is ejected, the half blocks automatically swing in the direction away from the BOSS column to be disengaged from the inverted buckle when the ejection block seat is ejected upwards, and the half blocks and the ejection block seat reset when the ejector pin is reset.

Description

Product BOSS post ejection mechanism

Technical Field

The invention relates to the technical field of ejection mechanisms, in particular to a product BOSS column ejection mechanism.

Background

As shown in fig. 7, the product is formed by injection molding, a BOSS column 2 is arranged on the bottom surface of a product 1, a hole 3 is arranged at the bottom of the BOSS column 2, an inverted buckle 4 is arranged on the outer side of the BOSS column 2, and the inverted buckle 4 is communicated with the hole 3.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the BOSS column ejection mechanism is simple to process and low in cost.

The technical scheme adopted by the invention is as follows: a BOSS column ejection mechanism for a product is characterized in that a BOSS column is arranged on the bottom surface of the product, a hole is formed in the bottom of the BOSS column, the outer side of the BOSS column is provided with an inverted buckle which is communicated with the hole, the ejection mechanism comprises an ejection block seat, an ejection pin and at least two Hough blocks, the top block seat and the half block are both arranged in the movable mould, the lower end of the half block is rotationally matched in the top block seat, the side surface of the upper end of the half block close to the BOSS column is provided with a groove for forming the outer side surface of the BOSS column, a bulge for forming an inverted buckle is arranged in the groove, the upper end of the thimble penetrates through the top block seat and extends into the hole, the ejector pin drives the ejector block seat and the half block to eject a product upwards when the product is ejected, the half block automatically swings away from the BOSS column to separate from the reverse buckle when the ejector block seat ejects upwards, and the half block and the ejector block seat reset when the ejector pin resets.

After adopting the structure, compared with the prior art, the invention has the following advantages: the movable die is internally provided with a top block seat and a half block, the half block surrounds the BOSS column, the half block is used for forming the outer side surface of the BOSS column and the back-off of the outer side surface, the ejector pin is used for ejecting a product and simultaneously ejecting the top block seat and the half block, the half block is separated from the constraint of the movable die, automatically swings in the direction away from the BOSS column to separate from the back-off and simultaneously separate from the outer side surface of the BOSS column, after the half block is completely separated from the movable die, the half block is opened to the maximum angle, the bulge on the half block is completely separated from the product, and after the product is completely ejected in place, the product can be taken out of the half block; after a product is taken out, the ejector pin moves downwards, so that the half block and the ejector block seat are driven to return to the original position, when the original position is returned, the outer inclined surface of the half block touches the movable die seat, the half block and the ejector block seat are slowly folded under the action of the inclined surface matching surface of the ejector block seat until the half block and the ejector block seat return to the original position, the die can begin to be closed, the machining process is simple, the ejector pin is a standard component, the cost is low, the speed is high, the shape of the head is simple, the common machining process can be completed, the machining is convenient, the machining cost is very low, the half block rotates around the ejector.

Preferably, open grooves are formed in two ends of the upper surface of the top block seat, rotating shafts are arranged in the open grooves, the lower ends of the half blocks are in rotating fit with the rotating shafts, the rotating shafts are convenient to set, and the lower ends of the half blocks are in rotating fit with the rotating shafts.

Preferably, the bottom surface of the half block is provided with a convex block protruding out of the bottom surface of the half block, the convex block is provided with a through hole, and the convex block is rotatably matched on the rotating shaft through the through hole so as to be convenient for mounting the convex block on the rotating shaft.

Preferably, two ends of the rotating shaft penetrate through the outer side surface of the top block seat respectively, so that the rotating shaft is convenient to mount and dismount.

Preferably, the number of the half blocks is two, the structure is simple, and the effect is good.

Preferably, the half block structure further comprises a spring, a fixing groove is further formed in the side face, close to the BOSS column, of the half block, one end of the spring is arranged in the fixing groove of one half block, the other end of the spring extends into the fixing groove of the other half block, the half blocks are combined together when the mold is closed, the spring is in a compressed state when the half blocks are combined together, and the spring is used for driving the half block to rotate, so that the half block is automatically opened.

Preferably, the number of the fixing grooves is two, the fixing grooves are respectively located at the front end and the rear end of the huff block, the huff block rotates more stably, and the reliability is high.

Preferably, the device also comprises a fixing column, the fixing groove of one huff block penetrates through the side face, far away from the BOSS column, of the huff block, the fixing column is arranged in the fixing groove, and one end of the spring is arranged on the fixing column.

Preferably, the groove penetrates through the half block downwards, the lower end of the groove is attached to the outer side face of the thimble when the mould is closed, rotation of the half block is not affected, and reliability is high.

Preferably, the ejector pin comprises a first section, a second section and a third section, the first section, the second section and the third section are sequentially arranged from top to bottom, the diameter of the second section is larger than that of the first section, the diameter of the second section is smaller than that of the third section, the first section extends into the hole, a stepped hole is formed in the ejector block seat, the diameter of the upper end of the stepped hole is smaller than that of the lower end of the stepped hole, the third section is arranged in the lower end of the stepped hole, the lower end of the second section is arranged in the upper end of the stepped hole, and the upper end of the second section abuts against the bottom surface of the BOSS column.

Preferably, the side surface of the ejector block seat is provided with a positioning hole, a positioning pin is arranged in the positioning hole, the third section of the ejector pin extends to the side surface of the part of the lower end of the stepped hole and is provided with a positioning groove, the positioning pin is clamped in the positioning groove, the ejector block seat and the ejector pin are fixed together by the positioning pin, and the ejector pin drives the ejector block seat to move up and down conveniently.

Drawings

FIG. 1 is a perspective view of a BOSS column ejection mechanism of a product of the present invention;

FIG. 2 is a front cross-sectional view of a BOSS column ejection mechanism of a product of the present invention;

FIG. 3 is a perspective view of the opening of the top block seat and the half block of the BOSS column ejection mechanism of the product of the present invention;

FIG. 4 is a perspective view of a top block seat of a BOSS column ejection mechanism of a product of the present invention;

FIG. 5 is a perspective view of a product of the BOSS column ejection mechanism half block of the present invention;

FIG. 6 is a front cross-sectional view of a product BOSS column ejection mechanism of the present invention positioned within a moving mold;

fig. 7 is a perspective view of a product BOSS column ejection mechanism product of the present invention.

The device comprises a product 1, a BOSS column 2, a BOSS column 3, a hole 4, an inverted buckle 5, a top block seat 6, a thimble 7, a Hough block 8, a groove 9, a bulge 10, an open slot 11, a rotating shaft 12, a convex block 13, a through hole 14, a spring 15, a fixed slot 16, a fixed column 17, a first section 18, a second section 19, a third section 20, a stepped hole 21, a positioning hole 22 and a positioning pin.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1, 2 and 6, the invention provides a product BOSS column ejection mechanism, wherein a BOSS column 2 is arranged on the bottom surface of a product 1, a hole 3 is arranged at the bottom of the BOSS column 2, an inverted buckle 4 is arranged on the outer side of the BOSS column 2, the inverted buckle 4 is communicated with the hole 3, the ejection mechanism comprises a top block seat 5, a thimble 6 and at least two huff blocks 7, the top block seat 5 and the huff blocks 7 are both arranged in a movable mold, the lower end of the huff block 7 is rotatably matched in the top block seat 5, a groove 8 for molding the outer side surface of the BOSS column 2 is arranged on the side surface of the huff block 7 close to the BOSS column 2, a protrusion 9 for molding the inverted buckle 4 is arranged in the groove 8, the upper end of the thimble 6 penetrates through the top block seat 5 and extends into the hole 3, the thimble 6 drives the top block seat 5 and the huff block 7 to move upwards to the product 1 when the product 1 is ejected, the ejection block 7 automatically separates from the direction of the huff column away from the swinging direction of the bos column 2, the half block 7 and the top block seat 5 reset when the ejector pin 6 resets, the invention has the advantages that the top block seat 5 and the half block 7 are arranged in the movable die, the half block 7 encloses the BOSS column 2, the half block 7 is used for forming the outer side surface of the BOSS column 2 and the back-off 4 of the outer side surface, the ejector pin 6 is used for ejecting a product, the top block seat 5 and the half block 7 are ejected out, the half block 7 is separated from the constraint of the movable die, the back-off 4 is automatically swung in the direction away from the BOSS column 2 and is separated from the outer side surface of the BOSS column 2, when the half block 7 is completely separated from the movable die, the half block 7 is opened to the maximum angle, the bulge 9 on the half block 7 is completely separated from the product 1, and after the product 1 is completely ejected in place, the product 1 can be taken out from the half block 7; after the product 1 is taken out, the ejector pin 6 moves downwards to drive the half block 7 and the ejector block seat 5 to return to the original position, when the product returns to the original position, the inclined surface of the outer side of the half block 7 touches the movable die seat, the half block is slowly folded under the action of the inclined surface matching surface of the ejector block seat 5 until the product returns to the original position, the die can start to be closed, the machining process is simple, the ejector pin 6 is a standard component, the cost is low, the speed is high, the head shape is simple, the common machining process can be completed, the machining is convenient, the machining cost is very low, the half block 7 rotates around the ejector block seat 5 to realize automatic opening, the machining is simple, the cost is low, and particularly, one part of the ejector pin 6 in the sleeve thimble drawing.

As shown in fig. 4, open grooves 10 are formed in two ends of the upper surface of the top block seat 5, a rotating shaft 11 is arranged in each open groove 10, the lower end of the huff block 7 is rotatably matched with the rotating shaft 11, the rotating shaft 11 is convenient to set, and the lower end of the huff block 7 is rotatably matched with the rotating shaft 11.

As shown in fig. 5, the bottom surface of the half block 7 is provided with a projection 12 protruding from the bottom surface of the half block 7, the projection 12 is provided with a through hole 13, and the projection 12 is rotatably fitted on the rotating shaft 11 through the through hole 13, so that the projection 12 is conveniently mounted on the rotating shaft 11.

As shown in fig. 1, two ends of the rotating shaft 11 respectively penetrate through the outer side surface of the top block seat 5, so that the rotating shaft 11 is convenient to mount and dismount.

As shown in fig. 3, the number of the huff blocks 7 is two, the structure is simple, and the effect is good.

As shown in fig. 3, the device further comprises a spring 14, a fixing groove 15 is further formed in the side surface of the huff block 7 close to the BOSS column 2, one end of the spring 14 is arranged in the fixing groove 15 of one huff block 7, the other end of the spring 14 extends into the fixing groove 15 of the other huff block 7, the huff blocks 7 are combined together when the molds are combined, the spring 14 is in a compressed state when the huff blocks 7 are combined together, and the spring 14 is used for driving the huff block 7 to rotate, so that the huff block 7 is automatically opened.

As shown in fig. 3, the number of the fixing grooves 15 is two, the fixing grooves 15 are respectively located at the front end and the rear end of the huff block 7, the huff block 7 rotates more stably, and the reliability is high.

As shown in fig. 3, the device further comprises a fixing post 16, the fixing groove 15 of one huff block 7 penetrates through the side surface of the huff block 7 far away from the BOSS post 2, the fixing post 16 is arranged in the fixing groove 15, and one end of the spring 14 is arranged on the fixing post 16.

As shown in fig. 2, the groove 8 penetrates through the half block 7 downwards, the lower end of the groove 8 is attached to the outer side surface of the thimble 6 during mold closing, rotation of the half block 7 is not affected, and reliability is high.

As shown in fig. 2, the thimble 6 includes a first section 17, a second section 18 and a third section 19, the first section 17, the second section 18 and the third section 19 are sequentially arranged from top to bottom, the diameter of the second section 18 is larger than that of the first section 17, the diameter of the second section 18 is smaller than that of the third section 19, the first section 17 extends into the hole 3, the top block seat 5 is provided with a stepped hole 20, the diameter of the upper end of the stepped hole 20 is smaller than that of the lower end of the stepped hole 20, the third section 19 is arranged in the lower end of the stepped hole 20, the lower end of the second section 18 is arranged in the upper end of the stepped hole 20, and the upper end of the second section 18 is abutted against the bottom surface of the BOSS column 2, which is simple in structure.

As shown in fig. 2 and 3, a positioning hole 21 is formed in a side surface of the ejector block seat 5, a positioning pin 22 is disposed in the positioning hole 21, a portion of the side surface of the third section 19 of the ejector pin 6, which extends to the lower end of the stepped hole 20, is provided with a positioning groove, the positioning pin 22 is clamped in the positioning groove, and the ejector block seat 5 and the ejector pin 6 are fixed together by the positioning pin 22, so that the ejector pin 6 drives the ejector block seat 5 to move up and down.

Specifically, the principle of the invention is that a top block seat 5 and a half block 7 are arranged in a movable die, the half block 7 encloses a BOSS column 2, the half block 7 is used for forming the outer side surface of the BOSS column 2 and an inverted buckle 4 of the outer side surface, the ejector pin 6 is used for ejecting a product, the top block seat 5 and the half block 7 are ejected out at the same time, the half block 7 is separated from the constraint of the movable die, the product automatically swings away from the BOSS column 2 and is separated from the inverted buckle 4, and simultaneously is separated from the outer side surface of the BOSS column 2, after the half block 7 is completely separated from the movable die, the half block 7 is opened to the maximum angle, a bulge 9 on the half block 7 is completely separated from the product 1, and after the product 1 is completely ejected in place, the product 1 can be taken out from; after the product 1 is taken out, the ejector pin 6 moves downwards to drive the half block 7 and the ejector block seat 5 to return to the original position, when the product returns to the original position, the inclined surface of the outer side of the half block 7 touches the movable die seat, the movable die seat is slowly folded under the action of the inclined surface matching surface of the ejector block seat 5 until the product returns to the original position, the die can start to be closed, the machining process is simple, the ejector pin 6 adopts a standard part, the cost is low, the speed is high, the head shape is simple, the common machining process can be completed, the machining is convenient, the machining cost is very low, the half block 7 rotates around the ejector block seat 5 to realize automatic opening, the machining is simple, the cost is low, and particularly, the.

Specifically, when the die is closed, the upper surface of the half block 7 is attached to the surface of a product, the hole 3 penetrates through the product, the first section 17 of the thimble 6 is used for forming the lower part of the hole 3, and the upper part of the hole 3 is formed by a die core on the fixed die, as shown in fig. 2.

The action process is as follows: firstly, after a product 1 is formed, before a mold is opened and ejected, when the product 1 is ejected, a half block 7 and an ejection block seat 5 are driven by a sleeve external member to be separated from a movable mold and ejected upwards, and because the outer side of the half block 7 has an inclination, the half block 7 rotates around a rotating shaft 11 under the action of a spring 14 during ejection, and is opened slowly, after the half block 7 is completely separated from the movable mold, the half block 7 is opened to a maximum angle, an inverted buckle 4 on the half block 7 is completely separated from the product 1, and after the product 1 is completely ejected in place, the product 1 can be taken out from the half block 7, as shown in fig. 3; secondly, after the product 1 is taken out, when the top plate retreats, the top plate drives the sleeve to move downwards, so that the half block 7 and the top block seat 5 are driven to return to the original positions, when the original positions return, the inclined surface of the outer side of the half block 7 touches the movable die seat, under the action of the inclined surface matching surface of the top block seat 5, the half block 7 is forced to resist the acting force of the spring 14, the spring 14 is compressed, and is slowly folded until the half block returns to the original position, and the state of the die is returned to the state shown in fig. 1, so that the die; and thirdly, re-molding the mold, ejecting the molded product, taking the product, closing the mold, and repeating the above steps to realize continuous production.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a product BOSS post ejection mechanism, product (1) basal surface set up BOSS post (2), BOSS post (2) bottom be equipped with hole (3), BOSS post (2) outside be equipped with back-off (4), back-off (4) and hole (3) intercommunication, its characterized in that: the ejection mechanism comprises an ejector block seat (5), an ejector pin (6) and at least two half blocks (7), wherein the ejector block seat (5) and the half blocks (7) are arranged in a movable die, the lower ends of the half blocks (7) are in rotating fit with the ejector block seat (5), a groove (8) for forming the outer side surface of a BOSS column (2) is formed in the side surface, close to the BOSS column (2), of the upper end of each half block (7), a protrusion (9) for forming the back-off block (4) is arranged in the groove (8), the upper end of the ejector pin (6) penetrates through the ejector block seat (5) and extends into the hole (3), the ejector pin (6) drives the ejector block seat (5) and the half block (7) to eject the product (1) upwards when the product (1) is ejected upwards, and the half blocks (7) automatically swing away from the BOSS column (2) to be separated from the back-off block (4) when the ejector block seat (5) is ejected upwards, the half block (7) and the top block seat (5) reset when the thimble (6) resets.

2. The product BOSS column ejection mechanism of claim 1, wherein: the two ends of the upper surface of the top block seat (5) are provided with open grooves (10), the open grooves (10) are internally provided with rotating shafts (11), and the lower ends of the half blocks (7) are in rotating fit with the rotating shafts (11).

3. The product BOSS column ejection mechanism of claim 2, wherein: the bottom surface of the half block (7) is provided with a convex block (12) protruding out of the bottom surface of the half block (7), the convex block (12) is provided with a through hole (13), and the convex block (12) is rotationally matched on the rotating shaft (11) through the through hole (13).

4. The product BOSS column ejection mechanism of claim 2, wherein: two ends of the rotating shaft (11) respectively penetrate through the outer side surface of the top block seat (5).

5. The product BOSS column ejection mechanism of claim 1, wherein: the number of the half blocks (7) is two.

6. The product BOSS column ejection mechanism of claim 5, wherein: the half block clamping device is characterized by further comprising a spring (14), a fixing groove (15) is further formed in the side face, close to the BOSS column (2), of the half block (7), one end of the spring (14) is arranged in the fixing groove (15) of one half block (7), the other end of the spring (14) extends into the fixing groove (15) of the other half block (7), the half blocks (7) are combined together when the dies are assembled, and the spring (14) is in a compression state when the half blocks (7) are combined together.

7. The product BOSS column ejection mechanism of claim 6, wherein: the number of the fixing grooves (15) is two, and the fixing grooves (15) are respectively positioned at the front end and the rear end of the huff block (7).

8. The product BOSS column ejection mechanism of claim 6, wherein: the device is characterized by further comprising a fixing column (16), wherein a fixing groove (15) of one half block (7) penetrates through the side face, far away from the BOSS column (2), of the half block (7), the fixing column (16) is arranged in the fixing groove (15), and one end of a spring (14) is arranged on the fixing column (16).

9. The product BOSS column ejection mechanism of claim 1, wherein: the groove (8) penetrates through the half block (7) downwards, and the lower end of the groove (8) is attached to the outer side surface of the ejector pin (6) during die assembly.

10. The product BOSS column ejection mechanism of claim 1, wherein: the thimble (6) comprises a first section (17), a second section (18) and a third section (19), the first section (17), the second section (18) and the third section (19) are sequentially arranged from top to bottom, the diameter of the second section (18) is larger than that of the first section (17), the diameter of the second section (18) is smaller than that of the third section (19), the first section (17) extends into the hole (3), a stepped hole (20) is formed in the top block seat (5), the diameter of the upper end of the stepped hole (20) is smaller than that of the lower end of the stepped hole (20), the third section (19) is arranged in the lower end of the stepped hole (20), the lower end of the second section (18) is arranged in the upper end of the stepped hole (20), and the upper end of the second section (18) is abutted against the bottom surface of the BOSS column (2).