CN111730830A - Straight-ejection falling demoulding mechanism of injection mould - Google Patents

Straight-ejection falling demoulding mechanism of injection mould Download PDF

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Publication number
CN111730830A
CN111730830A CN202010630791.1A CN202010630791A CN111730830A CN 111730830 A CN111730830 A CN 111730830A CN 202010630791 A CN202010630791 A CN 202010630791A CN 111730830 A CN111730830 A CN 111730830A
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CN
China
Prior art keywords
plate
thimble
ejector
block
straight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010630791.1A
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Chinese (zh)
Inventor
牟鹏宇
胡维杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Binhai Moulds & Plastics Group Co ltd
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Binhai Moulds & Plastics Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Binhai Moulds & Plastics Group Co ltd filed Critical Binhai Moulds & Plastics Group Co ltd
Priority to CN202010630791.1A priority Critical patent/CN111730830A/en
Publication of CN111730830A publication Critical patent/CN111730830A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005Body finishings

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A straight-ejection falling demoulding mechanism of an injection mould comprises an upper compound plate and a lower compound plate, wherein a mould foot, an upper thimble plate, a lower thimble plate and an ejector pin are arranged on the lower compound plate, a first limit column is arranged on the lower thimble plate, a second limit column is arranged on the upper thimble plate, a lower backing plate is arranged on the mould foot, secondary ejection control devices are arranged on the lower backing plate and the side walls of the upper thimble plate and the lower thimble plate, an upper backing plate is arranged on the lower backing plate, a mould core is arranged on the upper backing plate, an inclined ejector block and a straight ejector block are arranged in the mould core, an inclined guide rod and a transverse guide rod are arranged on the inclined ejector block, the lower end of the inclined guide rod is inserted into the mould core, a transverse guide hole is arranged in the straight ejector block, the transverse guide hole is matched with the transverse guide rod, a parallel sliding groove is arranged on the upper thimble plate, a parallel sliding plate is provided with an inclined guide hole, an inclined guide post is arranged in the lower thimble plate, the inclined guide post is, the lower sliding seat is provided with a thimble which is matched with the straight ejector block.

Description

Straight-ejection falling demoulding mechanism of injection mould
Technical Field
The invention relates to an injection mold, in particular to a straight-top falling demolding mechanism of the injection mold.
Background
When an injection mold is adopted to produce a plastic part (such as an automobile bumper), if a flange is formed in a headlamp area on the upper part of the plastic part, a raised groove position and an inner buckle structure are formed on the outer wall of the flange, so that the direct ejection is caused when the part is taken. The existing technology is that a conventional straight top is designed at a flanging position, and an inner oblique top is pressed through the outer straight top, but the conventional straight top structure is difficult to take a part because a groove position or a mounting hole of the flanging is positioned at the edge position of a mold, so that a secondary ejection structure is not arranged at a sufficient position, and the size of the mold needs to be increased to solve the problem, and the method causes the size of the mold to be increased, and correspondingly needs an injection molding machine with a larger tonnage, so that the development cost of the mold is greatly increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the straight-top falling demoulding mechanism of the injection mould, which has the advantages of simple structure, reduced mould volume, reduced mould development cost, stable and reliable mould action and capability of ensuring smooth demoulding of plastic parts.
The invention discloses a technical scheme of a straight-top falling demoulding mechanism of an injection mould, which comprises the following steps: the mold comprises an upper compound plate and a lower compound plate, wherein a cavity is arranged below the upper 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, a first limiting column is arranged on the lower ejector plate, a second limiting column is arranged on the upper ejector plate, a lower cushion plate is arranged on the mold feet, the side walls of the lower cushion plate and the upper ejector plate and the lower ejector plate are provided with a secondary ejection control device for controlling the upper ejector plate and the lower ejector plate to eject twice, an upper cushion plate is arranged on the lower cushion plate, a mold core is arranged on the upper cushion plate, a plastic part formed by injection molding between the mold core and the cavity is provided with a flanging, a convex plastic part groove position and an inner buckle are formed on the flanging, an inclined ejector block and a straight ejector block are arranged in the mold core, the upper parts of the inclined ejector block and the straight ejector block are matched with the inner buckle of the inclined ejector block, an inclined guide rod and a transverse guide rod are arranged on the inclined ejector block, the inclined guide rod, the lower end of the inclined guide rod is inserted into the mold core, a transverse guide hole is formed in the straight ejector block and matched with the transverse guide rod, a parallel sliding groove is formed in the upper ejector plate, a parallel sliding plate is arranged in the parallel sliding groove, parallel limiting blocks are arranged on two sides of the parallel sliding plate and fixed with the upper ejector plate through fasteners and are in limited fit with two sides of the parallel sliding plate, an inclined guide hole is formed in the parallel sliding plate, an inclined guide pillar is arranged in the lower ejector plate and fixed with the lower ejector plate, the upper portion of the inclined guide pillar is matched with the inclined guide hole, an inclined sliding groove is formed in the parallel sliding plate, a lower sliding seat is arranged on the inclined sliding groove and is in sliding fit with the inclined sliding groove through the inclined limiting block, an ejector pin is arranged on the lower sliding seat and fixed with the lower sliding seat through the fasteners, and the ejector pin penetrates through the lower base plate, the.
The invention discloses a straight ejection falling demoulding mechanism of an injection mould, when a plastic part is injection moulded, the mould is opened from a cavity and a core, at the moment, an upper ejector plate and a lower ejector plate are driven by power to move upwards, the upper ejector plate and the lower ejector plate drive a parallel sliding plate, a parallel limiting block, a lower sliding seat, an inclined guide post, a first limiting post and a second limiting post to move upwards together, a lower sliding seat drives an ejector pin to move upwards, the ejector pin penetrates through a lower backing plate, an upper backing plate and the core to drive a straight ejector block to move upwards, the straight ejector block drives an inclined ejector block and an inclined guide rod to move upwards through a transverse guide rod, the straight ejector block and the inclined ejector block together eject the injection moulded plastic part upwards to be separated from the core, when the inclined ejector block is ejected upwards, the inclined ejector block is matched with the core through the inclined guide rod to enable the inclined ejector block to move along the inclined direction of the inclined guide rod, meanwhile, the transverse guide rod of the inclined ejector block horizontally moves along the transverse guide, when the first limit column contacts with the mold core, the first limit column props the lower thimble plate to stop moving, the inclined guide column on the lower thimble plate stops moving, the upper thimble plate and the lower thimble plate are separated under the action of the secondary ejection control device, the upper thimble plate continues to move upwards under the driving action of power, the upper thimble plate drives the parallel sliding plate, the parallel limit block, the lower sliding seat, the inclined limit block and the thimble to continue moving upwards, the inclined guide hole in the parallel sliding plate is matched with the inclined guide column, under the guiding action of the inclined guide column and the limit action of the parallel limit block, the parallel sliding plate slides towards the right side along the parallel sliding groove, the inclined sliding groove on the parallel sliding plate is matched with the lower sliding seat, because the thimble passes through the upper backing plate, the lower backing plate and the mold core, only axial displacement can be performed by the thimble, therefore, the lower sliding seat can only perform axial displacement, when the parallel sliding plate horizontally displaces, under the limit action of the, the lower sliding seat can only move downwards gradually (namely fall) along the inclined sliding groove, the lower sliding seat drives the ejector pin and the straight ejector block to be separated from the groove position and the inner buckle of the plastic part downwards, the plastic part is made to complete core pulling, and finally the plastic part is ejected out and demoulded. According to the scheme, the injection mold straight-ejection falling demolding mechanism has the advantages that the straight ejection block falls and is separated from the groove position and the inner buckle structure of the plastic piece after ejecting the plastic piece by utilizing the matching of the parallel sliding groove, the parallel sliding plate, the parallel limiting block, the inclined guide hole, the inclined guide pillar, the inclined sliding groove and the lower sliding seat, the structure is simple, the core pulling action is stable and reliable, the smooth demolding of the plastic piece is ensured, the size of the mold is not required to be increased, and the development cost of the mold is reduced; two, adopt horizontal guide arm and horizontal guide hole cooperation between straight kicking block and the oblique kicking block, play the guide effect to the ejecting action of oblique kicking block, guarantee that the ejecting action of oblique kicking block is steady, reliable, and oblique kicking block only need set up a shorter oblique guide arm and core cooperation, for having adopted oblique kicking block and oblique ejector pin, the core is passed to oblique ejector pin lower extreme and upper, lower backing plate connects the slide, the slide is accomplished on the upper and lower thimble board, make the mould structure compacter, there is enough space to arrange other ejecting structures.
The invention relates to a straight-ejection falling demoulding mechanism of an injection mould, wherein two ejector pins are arranged on a lower sliding seat. The two ejector pins are more reliable in ejection action.
Two transverse guide rods are arranged on the inclined ejector block, and two corresponding transverse guide holes are formed in the straight ejector block. The two transverse guide rods can guide the inclined ejection block to be more stable and reliable.
The secondary ejection control device comprises a separation block, a telescopic stop block and a drag hook, wherein the separation block is fixed with a lower cushion plate through a fastener, an inclined push surface is manufactured under the separation block, a mounting groove is formed in the side wall of the upper ejector plate, a spring and the telescopic stop block are arranged in the mounting groove, a straight stop surface and an inclined surface are manufactured on the outer wall of the telescopic stop block, the inclined surface is matched with the inclined push surface of the separation block, the drag hook is fixed with the lower ejector plate through the fastener, and the drag hook is matched with the straight stop surface of the telescopic stop block. When first spacing post contacts with the core lower extreme, the inclined plane cooperation of the oblique pushing surface that breaks away from the piece and flexible dog, under the effect of oblique pushing surface, promote flexible dog and retract into the mounting groove in, the straight dog surface and the drag hook of flexible dog break away from the contact to make upper and lower thimble board throw off, power drives the thimble board and continues the rebound, and the thimble board then stop moving down, realizes that the secondary is ejecting.
The mold core is internally provided with a guide adjusting block, a guide adjusting hole is formed in the guide adjusting block, and the guide adjusting block is matched with the thimble. The guide adjusting block is arranged to guide the up-and-down movement of the thimble and reinforce the middle part of the thimble to prevent the thimble from deforming.
Drawings
FIG. 1 is a schematic structural diagram of a straight-top falling demolding mechanism of an injection mold according to the present invention;
FIG. 2 is a three-dimensional schematic view of the matching state of an inclined ejector block, a straight ejector block, an inclined guide rod, a transverse guide rod, an ejector pin, a parallel sliding plate, a parallel limiting block, a lower sliding seat, an inclined limiting block and an inclined guide column;
FIG. 3 is a three-dimensional schematic view of the state of the straight ejector block, the ejector pin, the parallel sliding plate, the parallel limiting block, the lower sliding seat, the oblique limiting block and the oblique guide pillar;
FIG. 4 is a three-dimensional schematic view of the state of the parallel sliding plate, the parallel limiting block, the lower sliding seat, the oblique limiting block and the oblique guide post;
FIG. 5 is a schematic perspective view of a secondary ejection control device;
fig. 6 is a perspective view of a plastic part.
Detailed Description
The invention relates to a straight-top falling demoulding mechanism of an injection mould, which comprises an upper compound plate and a lower compound plate 1, wherein a cavity is arranged below the upper compound plate, a mould pin 2 is arranged on the lower compound plate, an upper thimble plate 3, a lower thimble plate 4 and an thimble 5 are arranged on the lower compound plate between the mould pins, a first limit column 6 is arranged on the lower thimble plate, a second limit column 7 is arranged on the upper thimble plate, a lower cushion plate 8 is arranged on the mould pin, a secondary ejection control device for controlling the upper thimble plate and the lower thimble plate to eject twice is arranged on the side walls of the lower cushion plate and the upper thimble plate, an upper cushion plate 9 is arranged on the lower cushion plate, a mould core 10 is arranged on the upper cushion plate, a plastic piece 11 which is formed by injection moulding between the mould core and the cavity is provided with a flanging 12, the flanging is provided with a raised groove 13 and an inner buckle 14, an inclined ejection block 15 and a straight ejection block 16 are arranged in the mould core 10, and the upper parts of the inclined ejection block and the straight ejection block are matched with the inner, an inclined guide rod 17 and a transverse guide rod 18 are arranged on an inclined ejector block 15, the inclined guide rod is fixed with the bottom of the inclined ejector block through a fastener, the transverse guide rod is fixed with the side wall of the inclined ejector block through the fastener, the lower end of the inclined guide rod is inserted into a mold core 10, a transverse guide hole 19 is formed in a straight ejector block 16 and is matched with the transverse guide rod 18, a parallel chute 20 is formed in an upper ejector plate 3, a parallel sliding plate 21 is arranged in the parallel chute, parallel limit blocks 22 are arranged on two sides of the parallel sliding plate and are fixed with the upper ejector plate 3 through the fastener, the parallel limit blocks are in limit matching with two sides of the parallel sliding plate, an inclined guide hole 23 is formed in the parallel sliding plate 21, an inclined guide pillar 24 is arranged in a lower ejector plate 4 and is fixed with the lower ejector plate, the upper part of the inclined guide pillar is matched with the inclined guide hole, an inclined chute 25 is formed in the parallel sliding plate 21, a lower slide seat 26 is arranged on the, the lower sliding seat is provided with a thimble 5 which is fixed with the lower sliding seat through a fastener, and the thimble penetrates through a lower padding plate 8, an upper padding plate 9 and a mold core 10 to be matched with a straight ejector block 16. After the plastic part 11 is injection molded, the mold is opened from the cavity and the core 10, at this time, the upper and lower ejector plates 3, 4 are driven by power to move upwards, the upper and lower ejector plates drive the parallel sliding plate 21, the parallel limiting block 22, the lower sliding seat 26, the inclined guide post 24, the first limiting post 6 and the second limiting post 7 to move upwards together, the lower sliding seat 26 drives the ejector 5 to move upwards, the ejector penetrates through the lower backing plate 8, the upper backing plate 9 and the core 10 to drive the straight ejector block 16 to move upwards, the straight ejector block drives the inclined ejector block 15 and the inclined guide rod 17 to move upwards through the transverse guide rod 18, the straight ejector block 16 and the inclined ejector block 15 together eject the injection molded plastic part 11 upwards to be separated from the core 10, when the inclined ejector block 15 is ejected upwards, the inclined ejector block is matched with the core 10 through the inclined guide rod 17 to move the inclined ejector block along the inclined direction of the inclined guide rod, and the transverse guide rod 18 of the inclined ejector block 15 moves horizontally along the transverse guide hole 19 of, the inclined ejector block 15 is separated from the flanging 12 of the plastic part 11 to one side, when the first limit column 6 is contacted with the mold core 10, the first limit column props against the lower ejector plate 4 to stop moving, the inclined guide post 24 on the lower ejector plate stops moving, simultaneously the upper ejector plate 3 and the lower ejector plate 4 are separated under the action of a secondary ejection control device, the upper ejector plate 3 continues to move upwards under the driving action of power, the upper ejector plate drives the parallel sliding plate 21, the parallel limit block 22, the lower sliding seat 26, the inclined limit block 27 and the ejector pin 5 to continue to move upwards, the inclined guide hole 23 in the parallel sliding plate 21 is matched with the inclined guide post 24, under the guiding action of the inclined guide post and the limiting action of the parallel limit block 22, the parallel sliding plate slides to the right side along the parallel sliding groove 20, the inclined sliding groove 25 on the parallel sliding plate 21 is matched with the lower sliding seat 26, because the ejector pin 5 can only move upwards and downwards through the upper cushion plates 9, the ejector pins are fixed with the lower sliding seat, so that the lower sliding seat can only do axial displacement, when the parallel sliding plate 21 horizontally displaces, under the limiting effect of the inclined limiting block 27 on the lower sliding seat 26, the lower sliding seat can only gradually move downwards (namely fall) along the inclined sliding groove 25, the lower sliding seat drives the ejector pins 5 and the straight ejector block 16 to downwards separate from the groove positions 13 and the inner buckles 14 of the plastic pieces 11, the plastic pieces 11 are made to complete core pulling, and finally the plastic pieces are ejected out and demoulded. According to the injection mold straight-top falling demolding mechanism, the straight ejector block 16 falls and is separated from the groove position 13 and the inner buckle 14 structure of the plastic piece 11 after ejecting the plastic piece by utilizing the matching of the parallel sliding groove 20, the parallel sliding plate 21, the parallel limiting block 22, the inclined guide hole 23, the inclined guide post 24, the inclined sliding groove 25 and the lower sliding seat 26, the structure is simple, the core pulling action is stable and reliable, the plastic piece is guaranteed to be demolded smoothly, the size of the mold does not need to be increased, and the development cost of the mold is reduced; the straight ejector block 16 and the inclined ejector block 15 are matched with each other through a transverse guide rod 18 and a transverse guide hole 19, the guide effect on the ejection action of the inclined ejector block 15 is achieved, the stable and reliable ejection action of the inclined ejector block is guaranteed, the inclined ejector block only needs to be provided with a short inclined guide rod 17 to be matched with the mold core 10, compared with the existing inclined ejector block and inclined ejector rod, the lower end of the inclined ejector rod penetrates through the mold core and an upper backing plate and a lower backing plate to be connected with a sliding seat, the sliding seat is arranged on the upper backing plate and the lower backing plate, the mold structure is more compact, and other ejection structures are arranged in enough space. Two ejector pins 5 are arranged on the lower sliding seat 26. The two ejector pins 5 are more reliable in ejection action. Two transverse guide rods 18 are arranged on the inclined top block 15, and two corresponding transverse guide holes 19 are formed in the straight top block 16. The two transverse guide rods 18 can guide the inclined top of the inclined top block 15 more stably and reliably. Secondary ejection control device including breaking away from piece 28, flexible dog 29 and drag hook 30, break away from the piece through the fastener with lower backup pad 8 fixed mutually, the system has oblique push surface 31 under breaking away from the piece, opens at last thimble board 3 lateral wall and has mounting groove 32, sets up spring 33 and flexible dog 29 in the mounting groove, the outer wall system of flexible dog has straight fender surface 34 and inclined plane 35, the inclined plane cooperatees with the oblique push surface 31 that breaks away from piece 28, drag hook 30 is fixed mutually through fastener and thimble board 4 down, the drag hook cooperatees with the straight fender surface of flexible dog. When the first limit column 6 contacts with the lower end of the mold core 10, the inclined pushing surface 31 of the separation block 28 is matched with the inclined surface 35 of the telescopic stop block 29, the telescopic stop block 29 is pushed to retract into the installation groove 32 under the action of the inclined pushing surface, the straight blocking surface 34 of the telescopic stop block 29 is separated from the draw hook 30, so that the upper ejector plate 3 and the lower ejector plate 4 are separated, the upper ejector plate 3 is driven by power to continue to move upwards, and the lower ejector plate 4 stops moving, so that secondary ejection is realized. The mold core 10 is provided with a guide adjusting block 36, a guide adjusting hole is formed in the guide adjusting block, and the guide adjusting block is matched with the ejector pin 5. The guide adjusting block 36 is arranged to guide the up-and-down movement of the thimble 5 and reinforce the middle part of the thimble to prevent the thimble from deforming.

Claims (5)

1. Injection mold directly pushes up whereabouts demoulding mechanism, including compound board and lower compound board (1), it sets up the die cavity down to go up the compound board, set up on the compound board down mould foot (2), set up thimble board (3) on the compound board down between the mould foot, thimble board (4) and thimble (5) down, set up first spacing post (6) on the thimble board down, set up spacing post of second (7) on the thimble board, set up lower bolster (8) on the mould foot, lower bolster and last, thimble board lateral wall sets up on the control down, lower thimble board divides twice ejecting controlling means of secondary, set up upper padding plate (9) on the lower bolster, set up core (10) on the upper padding plate, injection moulding's working of plastics (11) between core and the die cavity, it has turn-ups (12) to go up, the system has bellied trench (13) and interior buckle (14) on the turn-ups, its characterized in that: an inclined ejector block (15) and a straight ejector block (16) are arranged in the mold core (10), the upper parts of the inclined ejector block and the straight ejector block are matched with an inner buckle (14) of a plastic part, an inclined guide rod (17) and a transverse guide rod (18) are arranged on the inclined ejector block (15), the inclined guide rod is fixed with the bottom of the inclined ejector block through a fastener, the transverse guide rod is fixed with the side wall of the inclined ejector block through a fastener, the lower end of the inclined guide rod is inserted into the mold core (10), a transverse guide hole (19) is formed in the straight ejector block (16) and matched with the transverse guide rod (18), a parallel sliding groove (20) is formed in the upper ejector plate (3), a parallel sliding plate (21) is arranged in the parallel sliding groove, parallel limiting blocks (22) are arranged on two sides of the parallel sliding plate and fixed with the upper ejector plate (3) through the fastener, the parallel limiting blocks are matched with two sides of the parallel sliding plate, and an inclined guide hole (23) is formed, set up oblique guide pillar (24) in thimble board (4) down, oblique guide pillar is fixed with thimble board down, oblique guide pillar upper portion cooperatees with oblique guide hole, system has oblique spout (25) on parallel slide (21), set up down slide (26) on the spout to one side, lower slide through oblique stopper (27) with oblique spout sliding fit, set up thimble (5) on the slide down, the thimble is fixed mutually with the lower slide through the fastener, the thimble passes lower bolster (8), upper padding plate (9), core (10) cooperatees with straight ejector pad (16).
2. The direct-top-falling demolding mechanism of an injection mold according to claim 1, characterized in that: two ejector pins (5) are arranged on the lower sliding seat (26).
3. The direct-top-falling demolding mechanism of an injection mold according to claim 1, characterized in that: two transverse guide rods (18) are arranged on the inclined ejector block (15), and two corresponding transverse guide holes (19) are formed in the straight ejector block (16).
4. The direct-top-falling demolding mechanism of an injection mold according to claim 1, characterized in that: secondary ejection control device including breaking away from piece (28), flexible dog (29) and drag hook (30), break away from the piece through the fastener with backing plate (8) fixed mutually down, the system has inclined push surface (31) under breaking away from the piece, it has mounting groove (32) to open at last thimble board (3) lateral wall, set up spring (33) and flexible dog (29) in the mounting groove, the outer wall system of flexible dog has straight fender face (34) and inclined plane (35), the inclined plane cooperatees with inclined push surface (31) that break away from piece (28), drag hook (30) are fixed mutually through fastener and lower thimble board (4), the drag hook cooperatees with the straight fender face of flexible dog.
5. The direct-top-falling demolding mechanism of an injection mold according to claim 1, characterized in that: the mould core (10) is internally provided with a guide adjusting block (36), a guide adjusting hole is formed in the guide adjusting block, and the guide adjusting block is matched with the thimble (5).
CN202010630791.1A 2020-07-03 2020-07-03 Straight-ejection falling demoulding mechanism of injection mould Pending CN111730830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010630791.1A CN111730830A (en) 2020-07-03 2020-07-03 Straight-ejection falling demoulding mechanism of injection mould

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Application Number Priority Date Filing Date Title
CN202010630791.1A CN111730830A (en) 2020-07-03 2020-07-03 Straight-ejection falling demoulding mechanism of injection mould

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Publication Number Publication Date
CN111730830A true CN111730830A (en) 2020-10-02

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CN202010630791.1A Pending CN111730830A (en) 2020-07-03 2020-07-03 Straight-ejection falling demoulding mechanism of injection mould

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115320034A (en) * 2022-08-05 2022-11-11 东风汽车集团股份有限公司 Straight-ejection inclined-ejection mechanism with inclined ejection and injection mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115320034A (en) * 2022-08-05 2022-11-11 东风汽车集团股份有限公司 Straight-ejection inclined-ejection mechanism with inclined ejection and injection mold

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